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CN108078697A - Folding and self-locking structure and folding and self-locking frame and fully collapsible invalid's chair and its method - Google Patents

Folding and self-locking structure and folding and self-locking frame and fully collapsible invalid's chair and its method Download PDF

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Publication number
CN108078697A
CN108078697A CN201810031588.5A CN201810031588A CN108078697A CN 108078697 A CN108078697 A CN 108078697A CN 201810031588 A CN201810031588 A CN 201810031588A CN 108078697 A CN108078697 A CN 108078697A
Authority
CN
China
Prior art keywords
sliding block
folding
self
bottom plate
bolt sliding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201810031588.5A
Other languages
Chinese (zh)
Other versions
CN108078697B (en
Inventor
张颂扬
杨帆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhang Na
Original Assignee
Health Health Management (shenzhen) Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Health Health Management (shenzhen) Co Ltd filed Critical Health Health Management (shenzhen) Co Ltd
Publication of CN108078697A publication Critical patent/CN108078697A/en
Application granted granted Critical
Publication of CN108078697B publication Critical patent/CN108078697B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
    • A61G5/0808—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction
    • A61G5/0833—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding front to back, e.g. reducing or expanding the overall depth of the wheelchair
    • A61G5/0841—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding front to back, e.g. reducing or expanding the overall depth of the wheelchair comprising a scissor-type frame, e.g. having pivoting cross bars for enabling folding
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
    • A61G5/0883—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable having locking means for maintaining a folded or unfolded condition
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Ladders (AREA)

Abstract

The invention discloses a kind of folding and self-locking structure and folding and self-locking frame and fully collapsible invalid's chair and its method, wherein the folding and self-locking structure includes a bottom plate；One latch assembly, the latch assembly generate axis rotation with the bottom plate, and the latch assembly includes a bolt sliding block；An and locked component, the locked component generates axis rotation with the bottom plate, the locked component includes one and prevents end, wherein, the locked component and the latch assembly relative position move, and in a folded configuration, the locked component fixes the latch assembly, and the reducible movement of both the locked component and the latch assembly so that the folding and self-locking structure can from unfolded state to folded state during complete self-locking operation.

Description

Folding and self-locking structure and folding and self-locking frame and fully collapsible invalid's chair and its method
Technical field
The present invention relates to machinery field, more particularly, to a kind of folding and self-locking structure and folding and self-locking frame and folding wheel Chair and its folding and self-locking method.
Background technology
Foldable structure is very universal application in machinery field, and the application of foldable structure can be saved when idle The space of time, and do not influence use state.Therefore, foldable structure is all applied in many fields.One of application neck Domain is in medical instruments field, and by taking wheelchair as an example, more fully collapsible invalid's chair is to be simply completed folding currently on the market, and is rolled over Volume after folded is larger.
It can be led to the problem of during use following：
Firstth, when folding, some structures be it is exposed outside, actually again without intactly folding.Such as Relatively common among wheelchair is foot pedal, arm-rest frame and backing cushion, these things are required to protectively store.
Secondth, the wheelchair crowd that either other frame structures use is the not convenient patient or disabled person of legs and feet, here Security need higher protection.Common practice is by a locked instrument, and by the locked instrument further Lock the wheelchair or other frame structures.Therefore, the safety of locked instrument is just very important, and existing wheelchair is filled in locking Putting the security of itself needs to be promoted, and existing locked instrument is required to operator's manual locking.
3rd, the device of existing foldable structure, the structure and step folded up are complex, for the user, After folding, it is also necessary to the foldable structure is locked, therefore it is more troublesome.
Such as the medical health apparatus such as wheelchair, security be it is extremely important, when fold open after, it is necessary first to be exactly Stability and security are kept, but some users may forget to lock, in this way, the security of entire wheelchair is difficult to protect Card.
The content of the invention
It is an object of the present invention to provide a kind of folding and self-locking structure and folding and self-locking frame and fully collapsible invalid's chair and Its folding and self-locking method, it is advantageous that, the folded frame of the folding and self-locking mechanism is after the folding that is done, you can automatic lock It is fixed, manual intervention is not required, reduces operating process.
It is an object of the present invention to provide a kind of folding and self-locking structure and folding and self-locking frame and fully collapsible invalid's chair and Its folding and self-locking method, during folding, the basic structure of the fully collapsible invalid's chair can be folded and opened simultaneously, and be opened To maximum open angle, which cannot continue to open backwards, be only capable of folding forward, pass through the folding and self-locking Structure, fully collapsible invalid's chair folding facing forward are locked.
It is an object of the present invention to provide a kind of folding and self-locking structure and folding and self-locking frame and fully collapsible invalid's chair and Its folding and self-locking method, during opening and using, even if the folding and self-locking structure is opened suddenly, foldable integral frame It will not be folded, ensure that the security of the folded frame.
It is an object of the present invention to provide a kind of folding and self-locking structure and folding and self-locking frame and fully collapsible invalid's chair and Its folding and self-locking method, the folded frame are further locked by the folding and self-locking structure.
It is an object of the present invention to provide a kind of folding and self-locking structure and folding and self-locking frame and fully collapsible invalid's chair and Its folding and self-locking method, wherein the folding and self-locking structure are completed by the mutual cooperation of the locked component and the latch assembly Effect that is fixed and locking automatically.
It is an object of the present invention to provide a kind of folding and self-locking structure and folding and self-locking frame and fully collapsible invalid's chair and Its folding and self-locking method, the wherein bottom plate are movably coupled to the locked component, when the latch assembly passes through the guiding groove During mutually chimeric with the bottom plate, which allows the latch assembly into the bottom plate, when the latch assembly passes through After the guiding groove and the bottom plate are mutually chimeric, which prevents the latch assembly from passing through the guiding groove and the bottom plate It is separated from each other.
It is an object of the present invention to provide a kind of folding and self-locking structure and folding and self-locking frame and fully collapsible invalid's chair and Its folding and self-locking method, the wherein bottom plate are movably coupled to the latch assembly, when the latch assembly is moved around the bottom plate During, which is fitted together to by the guiding groove with being separated.
It is an object of the present invention to provide a kind of folding and self-locking structure and folding and self-locking frame and fully collapsible invalid's chair and Its folding and self-locking method, the advantage of the wherein folding and self-locking structure are, after the latch assembly and the mutually chimeric bottom plate, The locked component automatically locks the latch assembly so that the latch assembly and the bottom plate keep stablizing.
It is an object of the present invention to provide a kind of folding and self-locking structure and folding and self-locking frame and fully collapsible invalid's chair and Its folding and self-locking method, wherein the folding and self-locking structure are used in a folded frame so that two foldings of the folded frame When frame is folded, it is locked by the folding and self-locking structure.
It is an object of the present invention to provide a kind of folding and self-locking structure and folding and self-locking frame and fully collapsible invalid's chair and Its folding and self-locking method, the wherein folded frame have one first folding stand and one second folding stand, wherein first folding stand Including a latch assembly, which includes a bottom plate and a locked component, when first folding stand and second folding During frame mutually folds, the latch assembly and the bottom plate and the locked component complete function that is mutually chimeric and locking.
It is an object of the present invention to provide a kind of folding and self-locking structure and folding and self-locking frame and fully collapsible invalid's chair and Its folding and self-locking method, the wherein fully collapsible invalid's chair include a use of revenue to finance expense frame, a wheel support and one leans on arm support and a folding and self-locking The folding and self-locking of the fully collapsible invalid's chair is completed in structure, folding and opening by the stent and the back bracket.
It is an object of the present invention to provide a kind of folding and self-locking structure and folding and self-locking frame and fully collapsible invalid's chair and Its folding and self-locking method, the wherein fully collapsible invalid's chair include a use of revenue to finance expense frame, a wheel support and one leans on arm support and a folding and self-locking The folding and self-locking of the fully collapsible invalid's chair is completed in structure, folding and opening by the wheel support and the back bracket.
One side according to the invention, the present invention provides a folding and self-locking structure, including：
One bottom plate；
One latch assembly, the latch assembly generate axis rotation with the bottom plate, and the latch assembly includes a bolt Sliding block；And
One locked component, the locked component generate axis rotation with the bottom plate, and the locked component, which includes one, to be prevented End, wherein, the locked component and the latch assembly relative position move, in a folded configuration, the locked component The fixed latch assembly, and the reducible movement of both the locked component and the latch assembly so that the folding Self-locking structure can from unfolded state to folded state during complete self-locking operation.
One of embodiment according to the present invention, wherein the bolt sliding block is around the bottom plate axis rotation and is formed One rotary motion trace, the locked component can reset ground axis rotation with the bottom plate, and the prevention end has an initial position And be arranged in the rotary motion trace,
In auto-lock process, the bolt sliding block drives the prevention end to leave the initial position, and then described slotting Pin sliding block is continued to move to along the rotary motion trace, in the case where the bolt sliding block crosses the prevention end, the resistance Not-go-end head is reset to the initial position, and the bolt sliding block is prevented to return, meanwhile, the prevention end prevents the bolt Sliding block moves on, and then completes self-locking.
One of embodiment according to the present invention the bottom plate axis rotation and forms a rotary motion trace, described to insert Pin sliding block can reset ground axle center with the bottom plate and move, and the bolt sliding block has an initial position and is arranged on the rotation In track,
In auto-lock process, the prevention end drives the bolt sliding block to leave the initial position, and then the resistance Not-go-end head is continued to move to along the rotary motion trace, described to insert in the case of crossing the bolt sliding block in the prevention end Pin sliding block is reset to the initial position, and completes self-locking.
One of embodiment according to the present invention, the bottom plate have a guiding groove, the part of the rotary motion trace It being overlapped with the guiding groove, one end of the locked component prevents one end of the latch assembly from slipping into the guiding groove, In the case where applying a motive force, one end of the latch assembly compresses one end of the locked component, the locked component It is moved so that the latch assembly is able to continue to slip into the guiding groove, the locked component resets and prevents the bolt Component is returned from the guiding groove, and then completes self-locking.
One of embodiment according to the present invention, the bottom plate have a first side and a second side, wherein institute The first side that latch assembly is arranged on the bottom plate is stated, wherein the locked component is arranged on the institute of the bottom plate Second side is stated, one end of the latch assembly has a bolt sliding block, and the bolt sliding block is extended to from the first side The second side.
One of embodiment according to the present invention, wherein the folding and self-locking structure also has at least two positive stop ends, Wherein described positive stop end is arranged on the bottom plate, and the positive stop end limits the moving range of the locked component and forms a limit Position region, the guiding groove has an opening and a passage, wherein the passage is located in the stop zone so that described Prevent end that from being moved at the passage of the guiding groove.
One of embodiment according to the present invention, the bolt sliding block of the latch assembly by a motive force drive with It is slipped into from the opening of the guiding groove, the bolt shoe contact simultaneously compresses the prevention end so that the resistance Not-go-end head is moved to that the bolt sliding block is allowed to go successively to the guiding groove.
One of embodiment according to the present invention, there is a guiding face and one to prevent face for the prevention end, described to insert Pin shoe contact and the guiding face for compressing the prevention end, the guiding face guide the bolt sliding block so that described While prevention end is moved, the bolt sliding block passes through the guiding face.
One of embodiment according to the present invention, the prevention end also have one to separate side, the prevention face and institute The both sides that guiding face is in the separation side are stated, and the prevention face and the direction shape of the guiding face are at an angle, So that after the bolt sliding block is by the separation side, the prevention end allows the bolt sliding block to go successively to the guiding Sliding slot.
One of embodiment according to the present invention, in the stop zone, the locked component forms a restoring force, The restoring force resets ground and pulls the prevention end, and in the stop zone, the prevention end is reset to initial position, The prevention face for preventing end prevents the bolt sliding block from returning.
One of embodiment according to the present invention, the bottom plate have a first connecting portion, the latch assembly it is another One end has a second connecting portion, wherein the first connecting portion is mutually spirally connected with the second connecting portion, and the bolt Component is collapsibly rotated around the bottom plate；Wherein described bottom plate also have one the 4th connecting portion, the locked component it is another One end has one the 3rd connecting portion, and the 3rd connecting portion and the 4th connecting portion are mutually spirally connected, and the locked component It is collapsibly rotated around the bottom plate.
One of embodiment according to the present invention, the folding and self-locking structure also have an elastic element, the elasticity One end of element is connected to the locked component, and one end of the elastic element is connected to the bottom plate, and then forms described return Multiple power, the locked component to be driven to reset.
One of embodiment according to the present invention, the locked component also have a driving lever, and the driving lever is drivingly controlled The prevention end is made, in the stop zone, the movement for preventing end is controlled by the driving lever.
According to an aspect of the present invention, the present invention provides a folding and self-locking frame, including：
One first folding stand；
One second folding stand, first folding stand and second folding stand collapsibly rotate；And
One folding and self-locking structure, wherein the folding and self-locking structure includes：
One bottom plate, the bottom plate are arranged on first folding stand；
One latch assembly, the latch assembly are arranged on second folding stand, the latch assembly and the bottom plate Axis rotation, the latch assembly include a bolt sliding block, and the bolt sliding block is around the bottom plate axis rotation and formation one Rotary motion trace；And
One locked component, the locked component can reset ground axis rotation with the bottom plate, and the locked component includes one End is prevented, the prevention end has an initial position and is arranged in the rotary motion trace,
Wherein, first folding stand and second folding stand generate movement folded against so that the bolt sliding block Receive a motive force so that the direction of advance of bolt sliding block along the rotary motion trace compresses the prevention end and drives The initial position is left in the prevention end, and the bolt sliding block is allowed for be continued to move to along the rotary motion trace, In the case that the bolt sliding block crosses the prevention end, the prevention end is reset to the initial position, and prevents institute The direction of advance that bolt sliding block is stated against the rotary motion trace returns, and the prevention end prevents the bolt sliding block from continuing Advance along the rotary motion trace, and then complete self-locking.
One of embodiment according to the present invention is beaten in first folding stand and second folding stand from folding into In the case of opening, the motive force is provided.
One of embodiment according to the present invention, the bottom plate have a guiding groove, the part of the rotary motion trace It being overlapped with the guiding groove, one end of the locked component prevents one end of the latch assembly from slipping into the guiding groove, In the case where applying the motive force, one end of the latch assembly compresses one end of the locked component, the locking group Part is moved so that the latch assembly is able to continue to slip into the guiding groove, and the locked component resets and prevents described insert Pin assemblies are returned from the guiding groove, and then complete self-locking.
According to an aspect of the present invention, invention further provides a fully collapsible invalid's chair, including：
One main body frame, the main body frame include a braced frame and a back bracket, and the supporting support is around institute It states back bracket collapsibly to rotate, wherein the supporting support includes a use of revenue to finance expense frame and a wheel support, the use of revenue to finance expense frame and institute Wheel support is stated to be connected in linkage so that the use of revenue to finance expense frame around the back bracket rotate when, the wheel support simultaneously around It the back bracket to rotate, the braced frame and the back bracket have a maximum open angle；
One mobile devices, the mobile devices include multiple wheels, and the wheel is arranged on the wheel support to drive State fully collapsible invalid's chair rotation；And
One folding and self-locking structure, the folding and self-locking structure are arranged on the main body frame, wherein described fold certainly Lock construction includes：
One bottom plate, the bottom plate are arranged in the supporting support；
One latch assembly, the latch assembly and the bottom plate axis rotation, the latch assembly include a bolt sliding block, The bolt sliding block is around the bottom plate axis rotation and forms a rotary motion trace；And
One locked component, the locked component are arranged in the back bracket, the locked component and the bottom plate Ground axis rotation can be resetted, the locked component includes one and prevents end, and the prevention end has an initial position and set It puts in the rotary motion trace,
Wherein, the supporting support of the main body frame and the back bracket generate movement folded against so that described to insert It sells sliding block and receives a motive force so that the direction of advance of bolt sliding block along the rotary motion trace compresses the prevention end And the prevention end is driven to leave the initial position, the bolt sliding block is allowed for continue to move along the rotary motion trace Dynamic, in the case where the bolt sliding block crosses the prevention end, and the supporting support and the back bracket reach The maximum open angle, the prevention end is reset to the initial position, and prevents the bolt sliding block against described turn Before the direction of advance of dynamic rail mark returns, and the prevention end prevents the bolt sliding block from continuing on the rotary motion trace Advance into direction, so complete the fully collapsible invalid's chair open to during maximum open angle by self-locking.
One of embodiment according to the present invention, the bottom plate are arranged on the use of revenue to finance expense frame.
One of embodiment according to the present invention, the bottom plate are arranged on the wheel support.
One of embodiment according to the present invention, the bottom plate have a guiding groove, the part of the rotary motion trace It being overlapped with the guiding groove, one end of the locked component prevents one end of the latch assembly from slipping into the guiding groove, In the case where applying the motive force, one end of the latch assembly compresses one end of the locked component, the locking group Part is moved so that the latch assembly is able to continue to slip into the guiding groove, and the locked component resets and prevents described insert Pin assemblies are returned from the guiding groove, and then complete self-locking.
One of embodiment according to the present invention, the locked component also have a driving lever, and the driving lever is drivingly controlled The prevention end is made, in the stop zone, the movement for preventing end is controlled by the driving lever.
One of embodiment according to the present invention, the fully collapsible invalid's chair further include a control handle, wherein the control Handle is arranged on the main body frame, and the control handle controllably connects the driving lever.
One of embodiment according to the present invention, the mobile devices further include a power set, the power set The wheel is electrically connected so that the wheel to be driven to rotate and then drives the fully collapsible invalid's chair.
One of embodiment according to the present invention, the fully collapsible invalid's chair further include a foot support and a head bracket, wherein The foot support is collapsibly arranged on the wheel support, and the head bracket is collapsibly arranged on the backrest branch Frame.
One of embodiment according to the present invention, the fully collapsible invalid's chair further include an armrest support, the armrest support It is collapsibly arranged in the supporting support.
According to an aspect of the present invention, the present invention provides a folding and self-locking method, including：
A, prevent the relative movement of both ends for a bottom plate in response to a bolt sliding block and one, the bolt sliding block from The guiding face for preventing end is intended to a prevention face；And
B, when the bolt sliding block is completely into the prevention face, the prevention end locks the bolt sliding block, into And complete self-locking.
One of embodiment according to the present invention, wherein step a further comprise the steps：
A1, promoted in response to a bolt sliding block, the bolt sliding block is carried out along a rotary motion trace and around a bottom plate Axis rotation；
A2, end is prevented in the bolt shoe contact to one, and the bolt sliding block can promote the prevention end In the case of head, initial position is left in the prevention end；And
In the case that initial position is left in a3, the prevention end, the bolt sliding block slips over the one of the prevention end Guiding face is in a prevention face.
According to another embodiment of the present invention, wherein step a further comprises the following steps：
A1, promoted in response to a prevention end, the prevention end is carried out along a rotary motion trace and around a bottom plate Axis rotation；
A2, a bolt sliding block is touched in the prevention end, and the prevention end can promote the bolt to slide In the case of block, the bolt sliding block leaves initial position；And
In the case that a3, the bolt sliding block leave initial position, the prevention face reception for preventing end is led from one The bolt sliding block for drawing face and coming.
According to another aspect of the present invention, the present invention further includes a self-locking deployment method：
C, in response to the movement of a driving lever, the prevention end is mobile and leaves initial position；And
D, in the case that the bolt sliding block is moved, the bolt sliding block from it is described prevention end the prevention face In leave, and complete to unlock.
Description of the drawings
Figure 1A-C represent the entirety and operation chart of one embodiment of the folding and self-locking structure.
Fig. 2A-D represent the entirety of one embodiment of the folding and self-locking structure and operation chart and decomposition diagram.
Fig. 3 A-C represent the auto-lock process schematic diagram of the folded frame 1.
Fig. 4 A-C represent the auto-lock process schematic diagram of the folded frame 2.
Fig. 5 A-D represent the operation chart of the another embodiment of the folding and self-locking structure.
Fig. 6 represents the positive overall schematic of the fully collapsible invalid's chair 3.
Fig. 7 represents the back side overall schematic of the fully collapsible invalid's chair 3.
Fig. 8 A-E represent the process schematic of the fully collapsible invalid's chair 3 from opening state to folded state.
Fig. 9 A-E represent the process schematic of the fully collapsible invalid's chair 3 from folded state to opening state.
Figure 10 represents the enlarged schematic partial view of the fully collapsible invalid's chair 3.
Figure 11 represents the structure diagram of the control handle 134 of the fully collapsible invalid's chair 3.
Specific embodiment
It is described below to disclose the present invention so that those skilled in the art can realize the present invention.It is excellent in being described below Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.It defines in the following description The present invention basic principle can be applied to other embodiments, deformation scheme, improvement project, equivalent program and do not carry on the back Other technologies scheme from the spirit and scope of the present invention.
It will be understood by those skilled in the art that the present invention exposure in, term " longitudinal direction ", " transverse direction ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", the orientation or position of the instructions such as " outer " Relation be based on orientation shown in the drawings or position relationship, be for only for ease of the description present invention and simplify description rather than It indicates or implies signified device or element must have specific orientation, with specific azimuth configuration and operation, thus it is above-mentioned Term is not considered as limiting the invention.
It is understood that term " one " is interpreted as " at least one " or " one or more ", i.e., in one embodiment, The quantity of one element can be one, and in a further embodiment, the quantity of the element can be multiple, and term " one " is no It is understood that as the limitation to quantity.
As shown in figs. 1 a-c, the present invention provides the first embodiment of a folding and self-locking structure 10, wherein the folding and self-locking knot The advantage of structure 10 is after the completion of folding, while is automatically completed locking.Specifically, which includes a bottom Plate 11, a latch assembly 12 and a locked component 13, the bottom plate 11 and the latch assembly 12 are detachably connected, the bottom plate 11 with The locked component 13 is detachably connected.Wherein the bottom plate 11 moves in a coupled condition with the latch assembly 12, the bottom Plate 11 moves in connected state with the locked component 13.
In another variant embodiment, which is connected with being integrally formed with one end of the latch assembly 12, should Latch assembly 12 is collapsibly rotated around the bottom plate 11.One end of the bottom plate 11 and the locked component 13 is integrally formed ground even It connects, which collapsibly rotates around the bottom plate 11.
Preferably, which has an a first side M1 and second side M2, and the wherein latch assembly 12 is set In the first side M1 of the bottom plate 11, which is arranged on the second side M2 of the bottom plate 11.
The latch assembly 12 around the bottom plate 11 rotate during, formed a rotary motion trace, specifically, the latch assembly The rotary motion trace that 12 one end is formed is a circular arc.The locked component 13 can reset ground axis rotation around the bottom plate 11, Wherein one end of the locked component 13 is by axis connection on the bottom plate 11, and the locked component 13 has an initial position, when In the case that the locked component 13 is subject to a motive force to promote and leaves the initial position, which is subject to one time simultaneously Multiple power makes it be restored to the initial position.
It should be noted that the locked component 13 is subject to a restoring force always so that the locked component 13 is in no external force In the case of driving, the initial position is always positioned at, and in the case that the extraneous motive force is more than the restoring force, the locking Component 13 is promoted and makees axis rotation around the bottom plate 11, and when the motive force is less than the restoring force even situation of disappearance Under, which is responded to the initial position.
In the present embodiment, which includes a bolt sliding block 122, and the bolt sliding block 122 is along the rotation rail Mark advances, and the direction advanced is the rotary motion trace.At this point, the part of the locked component 13 in the initial position is located at In the rotation direction of the rotary motion trace, that is to say, that when the latch assembly 12 rotates, the bolt of the latch assembly 12 Sliding block 122 can wherein contacting with each other in the rotary motion trace with the locked component 13.
Specifically, which includes a prevention end 132, which is located at turning for the rotary motion trace On dynamic direction, in the case where the latch assembly 12 is contacted with the locked component 13, the bolt sliding block 122 and the prevention end 132 contact with each other.At this point, the prevention end 132 is in the initial position, and the bolt sliding block 122 is prevented along this turn Dynamic rail mark continues to move to, and when the motive force is more than the restoring force, which continues on rotary motion trace rotation, and And the locked component 13 is promoted to leave the initial position, while the initial position is left in the prevention end 132.When the prevention end First 132 are promoted and are left the rotary motion trace, which crosses the prevention end 132 and continue to move to.In other words, The prevention end 132 leaves the initial position and the bolt sliding block 122 is allowed to continue to move to, at this point, the bolt sliding block 122 is crossed After the prevention end 132, the motive force which is subject to weakens up to disappearing, in this process, the prevention End 132 is pulled be subject to the restoring force, and then returns back to the initial position.
After the prevention end 132 comes back to the initial position, which can continue to along the rotation rail Mark moves forward, but the prevention end 132 prevents the bolt sliding block 122 to be returned along the rotary motion trace.
It is understood that there is a guiding face 1321 and one to prevent face 1322 for the prevention end 132, the wherein bolt is slided Block 122 is rotated along the rotary motion trace and contacted with the guiding face 1321 of the prevention end 132 of the locked component 13, at this In the case that bolt sliding block 122 moves on, which generates relative displacement with the bolt sliding block 122.The prevention end First 132 are promoted by a motive force and leave the initial position, which moves on the guiding face 1321.The guiding Face 1321 forms a guiding face direction, which is intended to the direction of advance of the rotary motion trace.Therefore, when the bolt is slided When block 122 crosses the prevention end 132 and namely passes through the guiding face 1321, which is promoted and to leave this first Beginning position, and the bolt sliding block 122 passes through the guiding face 1321.
It should be noted that separated among the guiding face 1321 and the prevention face 1322 by a separation side 1133, the resistance Only face 1322 forms one and prevents face direction, which is intended to the direction of advance of the rotary motion trace.Therefore when the bolt The direction of advance of sliding block 122 along the rotary motion trace is crossed the guiding face 1321 and is entered after the prevention face 1322, the prevention face 1322 prevent the bolt sliding block 122 from being returned along the inverse direction of advance of the rotary motion trace.
The direction of advance of the so-called rotary motion trace in above-described embodiment refers to the bolt sliding block 122 towards the locking group Part 13 is rotated along the rotary motion trace.It is to be appreciated that the rotary motion trace in the present embodiment is virtual track, convenient for table It states and sets.
The present invention provides another variant embodiment of the above-mentioned folding and self-locking structure 10, wherein, the bottom plate 11 is with being somebody's turn to do Latch assembly 12 is in unfolded state, and in the unfolded state, one end of the bottom plate 11 and the latch assembly 12 is connected with each other, The latch assembly 12 is around rotatable with one end of the bottom plate 11.
The bottom plate 11 is movably coupled to the latch assembly 12, and wherein the bottom plate 11 has a first connecting portion 111, right Ying Di, the latch assembly 12 have a second connecting portion 121, and wherein first connecting portion 111 and the second connecting portion 121 is removable It connects dynamicly.
It is so-called in the present embodiment to be movably coupled to, refer to fix the bottom plate 11 and the bolt group in one direction Part 12 allows the latch assembly 12 to be rotated around the bottom plate 11 in the other directions, and the latch assembly around this first Connecting portion 111 and the second connecting portion 121 are axis rotation.
Specifically, which is mutually spirally connected with the latch assembly 12, and the first connecting portion 121 of the wherein bottom plate 11 has There is one first mounting hole A1, accordingly, the second connecting portion 121 of the latch assembly 12 has one second mounting hole A2, this Two connecting portions 121 provide an attachment screw 1211, by the attachment screw 1211 through the first mounting hole A1 and second peace Hole A is filled, and the bottom plate 11 and the latch assembly 12 are moved along in-plane, in the quilt on in-plane It is fixed.
It is completed it is understood that the bottom plate 11 such as with the latch assembly 12 by axis can also connect, be hinged at the modes so that The latch assembly is axis rotation around the first connecting portion 111 and the second connecting portion 121.
For ease of description, the direction defined in the present invention, reference frame refers to, with parallel to the bottom plate 11 In-plane is X axis, perpendicular to 11 in-plane of bottom plate be Y-axis, coordinate origin on the bottom plate 11, also, In 11 plane of bottom plate vertically with X axis for Z axis to.Therefore, which is in the X-Z plane, without considering the bottom plate The influence of 11 thickness.Therefore, the above-mentioned latch assembly 12 rotates on the first side M1 of the bottom plate 11, that is to say, that in X-Z In plane.
In the present embodiment, which includes a bolt sliding block 122, and the bolt sliding block 122 is from the first side M1 extends to second side M2, that is, the bolt sliding block 122 towards Z axis to a predetermined altitude.The latch assembly 12 In the case of 11 axis rotation of bottom plate, which has a predetermined rotary motion trace, and the rotary motion trace is with being somebody's turn to do Bottom plate 11 forms a contact area.That is, the bolt sliding block 122 is around 11 axis rotation of bottom plate, when the bolt is slided Block 122 can continue to rotate after contacting with the bottom plate 11.
As shown in fig. 2 a-d, further, which also has a guiding groove 112, which is opened up At the edge of the bottom plate and extend inward.The latch assembly 12 also has a bolt sliding block 122,122 direction of bolt sliding block A protrusion is extended to form perpendicular to the direction in the base plate plane direction i.e. Y-axis direction.
Accordingly, which can accordingly slide in the guiding groove 112.That is, the guiding is slided This of slot 112 and relative distances of the first mounting hole A1 on the bottom plate 11, above-mentioned relative distance and the latch assembly 12 are inserted It is comparable to sell sliding block 122 and the relative distance of second mounting hole A2.
In this way, when the latch assembly 12 is when the first side M1 of the bottom plate 11 is rotated so that the bolt sliding block 122 are inserted into the guiding groove 112.Specifically, which has an opening 1121 and a passage 1122.
It is obtained by above-mentioned, as shown in fig. 2 a-d, in the first embodiment of the present invention, the latch assembly 12 is around the bottom plate 11 axis rotations, from unfolded state to folded state.
So-called unfolded state in the present embodiment refers to the bolt sliding block 122 and the bottom plate 11 of the latch assembly 12 Separation.
So-called folded state in the present embodiment refers to that the bolt sliding block 122 of the latch assembly 12 connects with the plate 11 It touches.
In the variant embodiment of the first embodiment of the present invention, the latch assembly 12 around the bottom plate 11 this When one mounting hole A1 is rotated, in unfolded state to folded state, the bolt sliding block 122 of the latch assembly 12 passes through this The opening 1121 of guiding groove 112 enters the passage 1122 so that the latch assembly 12 and the bottom plate 11 are overlapped, and reduce it The area of in-plane.The trend of the passage 1122 is with the bolt sliding block 122 around 111 institute of first connecting portion of the bottom plate 11 The track of generation is related.
It is understood that the opening 1121 of the guiding groove 112 is more than the bolt sliding block 122 with being set Width, suitable for slipping into for the bolt sliding block 122, and the passage 1122 can change its angle according to the angle of folding.
From from the point of view of the direction of 11 in-plane of bottom plate, the height of projection of the bolt sliding block 122 has one to subscribe Highly, which is more than the thickness of the bottom plate 11.Therefore, which exceeds the bottom plate 11 in a folded configuration Part, pass through 13 mutually locking of locked component.
Folded state in above-mentioned variant embodiments refers to that the bolt sliding block 122 of the latch assembly 12 slips into the bottom plate In the passage 1122 of 11 guiding groove 112.
Unfolded state in above-mentioned variant embodiments refers to the bolt sliding block 122 and the bottom plate of the latch assembly 12 11 guiding groove 112 is separated from each other.
The bottom plate 11 is removable with the locked component 13 and is connected with can resetting, and wherein the locked component 13 is around the bottom Plate 11 rotatably rotates and in unlocked state, the wherein locked component 13 has one the 3rd connecting portion 131, corresponding Ground, the bottom plate 11 also have one the 4th connecting portion 113, and the 3rd connecting portion 131 and the 4th connecting portion 113 are connected with each other, make The locked component 13 is obtained to move in the in-plane of the second side M2 along the bottom plate 11 i.e. X-Z plane direction, And the locked component 13 around the 3rd connecting portion 131 and the 4th connecting portion 113 the bottom plate 11 second side M2 It rotates.
The locked component 13 also has one to prevent end 132, which there is a guiding face 1321 and one to prevent Face 1322, as seen in figs. 2a-2b, during the bottom plate 11 and the latch assembly 12 are mutually chimeric, which passes through The opening 1121 of the guiding groove 112 of the bottom plate 11 enters the passage 1122, and the position of the prevention end 132 is led positioned at this Draw at the passage 1122 of sliding slot 112.
It is noted that the locked component 13 has a precalculated position with the bottom plate 11 so that hangs down the prevention end 132 Directly in the in-plane i.e. Y-axis of the bottom plate 11,112 top of guiding groove is preferably at, and in the bolt Sliding block 122 passes through at the passage 1122 of the guiding groove 112.
So-called unlocked state in the present embodiment refers to the bolt sliding block 122 not yet by 132 quilt of prevention end Locking.
In the first embodiment of the present invention, which is explained by the process that the locked component 13 is locked It is bright.In the rotary motion trace formed in the bolt sliding block 122 around the bottom plate 11 rotation, the prevention end of the locked component 13 First 132 have an initial position, which is arranged in the rotary motion trace.
That is, on the initial position, the prevention end 132 of the locked component 13 prevents the bolt sliding block 122 Continue to move along the rotary motion trace.In this process, if it is desired to continue to move to, the bolt sliding block 122 is for the prevention end First 132 need to apply a motive force F.Under the promotion of motive force F, the bolt sliding block 122 is along the prevention end 132 The guiding face 1321 generates opposite movement with the prevention end 132, and the guiding direction of the guiding face 1321 is led from this Draw face 1321 to the prevention face 1322.
Preferably, which is an arcwall face, and the setting of the arcwall face tends to cause the bolt sliding block 122 always The prevention face 1322 is slided into from the guiding face 1321.
It is understood that moving direction of the bolt sliding block 122 in the guiding groove 112 only can be along the rotation Track, and under the promotion of above-mentioned motive force F, if static for object of reference with the bottom plate 11, which can only court To the rotary motion trace direction.As a result, in above process, which generates certain displacement.
Certain displacement of the prevention end 132 is rotatably realized by the locked component 13 around the bottom plate 11. In order to further complete the function of self-locking, which also has an elastic parts 14, which wraps An elastic element 141 and at least one positive stop end 142 are included, wherein one end of the elastic element 141 is connected with each other with the bottom plate 11, The other end of the elastic element 141 is connected with each other with the locked component 13, and the positive stop end 142 is arranged on the bottom plate 11 On, the one or more positive stop end 142 limits the locked component 13 and forms a stop zone 1420 so that the /V Region 1420 limits moving range of the locked component 13 on the bottom plate 11.
Preferably, which in the effect of setting be when the prevention end 132 of the locked component 13 When generating certain displacement, the starting point and ending point of the displacement is limited.That is, when the prevention end 132 is in Under the position of the starting point of the stop zone 1420, at this point, the bolt sliding block 122 contacts the guiding face of the prevention end 132 1321。
It is understood that with or without the bolt sliding block 122, which is always positioned at an initial position, The so-called initial position of the present invention, refers to that the prevention end 132 is in the starting point of the stop zone 1420.
The displacement of the above-mentioned prevention end 132 is limited by the stop zone 1420, when the bolt sliding block 122 contacts the resistance The guiding face 1321 of not-go-end first 132 simultaneously generates certain displacement along the guiding direction of the guiding face 1321.
Also have one to separate side 1323 in the guiding face 1321 of the prevention end 132 and the centre in the prevention face 1322, In the both sides on the separation side 1323, the direction in the guiding face 1321 and the prevention face 1322 forms an angle of intersection, and For the bolt sliding block 122 when being relatively moved on the guiding face 1321, the bolt sliding block 122 is to the motive force F of the prevention end 132 Always pressure is so that the bolt sliding block 122 compresses the prevention end.
When the bolt sliding block 122 by the separation side 1323 from the guiding face 1321 to the prevention face 1322, which slides The ' locked ' zone 1320 that block 122 is formed into the prevention face 1322, while the bolt sliding block 122 is to the prevention end 132 Motive force F weakens until disappearing.
It is understood that the guiding face 1321 is arranged on the outside of the prevention end 132, the prevention face 1322 is set It puts in the inside of the prevention end 132.As shown in Figure 3B, the bolt sliding block 122 is in the relative movement distance of the guiding face 1321 Less than the displacement distance for the locked component 13 that the stop zone 1420 is limited.
In the variant embodiments of above-mentioned first embodiment, which is locked by the locked component 13 Process is elucidated with, when the bolt sliding block 122 is by the guiding groove 112, and with 1321 phase of guiding face of the prevention end 132 Contact.
It should be noted that when the bolt sliding block 122 into the guiding groove 112 when moving, the prevention end is run into 132 prevention, and continue towards the direction movement inside the guiding groove 112.The prevention end 132 of the locked component 13 The bolt sliding block 122 is prevented to continue to move along the guiding groove 112.In this process, if it is desired to continue to move to, the bolt Sliding block 122 needs to apply a motive force F for the prevention end 132.Under the promotion of motive force F, the bolt sliding block 122 Along the guiding face 1321 and prevention end 132 of the prevention end 132 generate it is opposite move, and the guiding face 1321 Guiding direction be from the guiding face 1321 to the prevention face 1322.
It is understood that moving direction of the bolt sliding block 122 in the guiding groove 112 only can be along the guiding Sliding slot 132, and under the promotion of above-mentioned motive force F, if static for object of reference with the bottom plate 11, the bolt sliding block 122 It can be towards the direction of the guiding groove 132.As a result, in above process, which generates certain displacement.
The bolt sliding block 122 and the mutual alignment of the prevention end 132 and movement relation and above-mentioned first embodiment at this time This mutual alignment is identical with movement relation.
To sum up, when the bolt sliding block 122 by and during being fitted to the guiding groove 112, touching the prevention Behind end 132, due to the presence of motive force F, which persistently presses to the prevention end 132 so that the prevention End 132 generates certain relative displacement with the bolt sliding block 122.At this point, the bolt sliding block 122 constantly by and be fitted to The guiding groove 112.
It should be noted that since the locked component 13 is connected with each other with the bottom plate 11 by the elastic element 141 so that The locked component 13 answers power H, in the prevention end 132 and the phase of the bolt sliding block 122 once always during movement Mutually push-pull effort F is resisted during movement.
The bolt sliding block 122 is by entering the prevention face 1322, the motive force F for being in contact and generating behind the separation side 1323 Weaken and even disappear, meanwhile, restoring force H pulls the prevention end 132 of the locked component 13 to be returned to initial position, also It is the position before the bolt sliding block 122 and the prevention end 132 contact with each other, and then prevents the bolt sliding block 122 to this It is moved at the opening 1121 of guiding groove 112.At this point, complete the self-locking that the prevention end 132 locks the bolt sliding block 122 Function.
The so-called lock-out state of the present embodiment refers to that the bolt sliding block 122 enters in the guiding groove 112, and the resistance Not-go-end first 132 is located at the rear side of the bolt sliding block 122, and the bolt sliding block 122 is prevented to be returned from the guiding groove 112.
It is understood that in the case that the bolt sliding block 122 behind the separation side 1323 by entering the prevention face 1322, The bolt sliding block 122 reaches terminal in the guiding groove 112, and entire folding and self-locking structure reaches fixed and self-locking at this time. It is possible that the bolt sliding block 122 can also move in the guiding groove 112, at this point, the folding and self-locking structure 10 reaches certainly Lock, but the latch assembly 12 can still be relatively moved with the bottom plate 11.
The so-called auto-lock function of the present embodiment, refers to, enters the bottom plate 11 in the bolt sliding block 122 of the latch assembly 12 The guiding groove 112 during, be not required the operation bidirectional locked component 13 the prevention end 132 can be completed for The locking of the bolt sliding block 122 only needs the promotion for promoting the bolt sliding block 122 into the guiding groove 112 during this Power F is more than restoring force H.
As shown in Figure 1A-C and 2A-D, which is elucidated with from opening state is locked state to.Wherein should Locked component 13 also has a driving lever 133, after the locking process such as Fig. 3 B is completed, if operator is wanted the bolt sliding block 122 separate from the guiding groove 112, by stirring the driving lever 133 so that prevention face 1322 of the prevention end 132 with The bolt sliding block 122 separates, and allows for the bolt sliding block 122 free to slide in the guiding groove 112.
As shown in figures 3 a-c, the present invention further provides a folded frame 1, which includes one first and fold Frame 101, one second folding stand 102 and a folding and self-locking structure 10, wherein first folding stand 101 and second folding stand 102 One end be connected with each other and second folding stand 102 is rotatable around first folding stand 101.
Further, which is provided with the bottom plate 11 of the folding and self-locking structure 10, is set in the bottom plate 11 The locked component 13 is equipped with, which is provided with the difference latch assembly 12 of the folding and self-locking structure so that this One folding stand 101 and second folding stand 102 drivingly complete the folding and self-locking structure 10 during be opened to folding Auto-lock function.
It should be noted that first folding stand 101 and second folding stand 102 are in opening state, the latch assembly The 12 bolt sliding block 122 is separated from each other with the guiding groove 112 of the bottom plate 11.First folding stand 101 and second folding Superimposed 102 is in folded state, which enters the guiding groove 112, and passes through the prevention of the locked component 13 It completes chimeric and locks in end 132.
Specifically, wherein the folding and self-locking structure 10 includes a bottom plate 11, which is arranged on first folding stand On 101, which has a guiding groove 112；One latch assembly 12, the latch assembly 12 are arranged on second folding stand On 102, one end of the latch assembly 12 is adapted to slide into the guiding groove 112, the other end of the latch assembly 12 and the bottom plate 11 It connects and is collapsibly rotated around the bottom plate 11；And a locked component 13, the locked component 12 can be rolled over the bottom plate 11 It folds and rotates with can resetting, one end of the locked component 13 prevents one end of the latch assembly 12 from slipping into the guiding groove 112, In the case of applying a motive force F, first folding stand 101 and second folding stand 102 are from folded state to opening state Process, first folding stand 101 drive one end of the latch assembly 12 to compress one end of the locked component 13, the locked component 13 It is moved so that the latch assembly 12 is able to continue to slip into the guiding groove 112, which resets and prevent the bolt 112 return from the guiding groove of component 12, and then complete self-locking.
As illustrated in figs. 4 a-c, the present invention further provides a folded frame 2, which includes one the 3rd and fold Frame 201, one the 4th folding stand 202 and a folding and self-locking structure 10, wherein the 3rd folding stand 201 are provided with the folding and self-locking knot The bottom plate 11 of structure 10 and the locked component 13 being arranged on the bottom plate 11 are provided with the folding on the 4th folding stand 202 Latch assembly 12 of self-locking structure 10 so that the 3rd folding stand 201 and the 4th folding stand 202 are from folding into open mistake Cheng Zhong drivingly completes the auto-lock function of the folding and self-locking structure 10.
It should be noted that the 3rd folding stand 201 is in folded state with the 4th folding stand 202, the latch assembly The 12 bolt sliding block 122 is separated from each other with the guiding groove 112 of the bottom plate 11.3rd folding stand 201 and the four fold Superimposed 202 is in opening state, which enters the guiding groove 112, and passes through the prevention of the locked component 13 It completes chimeric and locks in end 132.
The so-called opening state of the present embodiment, refers to full open position.So-called folded state, refers to what is folded completely State.
As illustrated in figs. 4 a-c, wherein the folding and self-locking structure 10 includes a bottom plate 11, which is arranged on the 3rd On folding stand 201, which has a guiding groove 112；One latch assembly 12, the latch assembly 12 are arranged on the 4th On folding stand 202, one end of the latch assembly 12 is adapted to slide into the guiding groove 112, and the other end of the latch assembly 12 is with being somebody's turn to do Bottom plate 11 is connected and collapsibly rotated around the bottom plate 11；And a locked component 13, the locked component 12 and the bottom plate 11 is foldable and rotate with can resetting, and one end of the locked component 13 prevents one end of the latch assembly 12 from slipping into the guiding groove 112, in the case where applying a motive force F, the 3rd folding stand 201 is with the 4th folding stand 202 from opening state to folding The process of state, the 3rd folding stand 201 drive one end of the latch assembly 12 to compress one end of the locked component 13, the locking Component 13 is moved so that the latch assembly 12 is able to continue to slip into the guiding groove 112, which resets and prevent The latch assembly 12 112 return from the guiding groove, and then complete self-locking.
It is noted that the self-locking operation in above-described embodiment is by 122 active exposure of bolt sliding block and compresses The prevention end 132, wherein force side is the bolt sliding block 122, that is to say, that motive force F promotes the bolt sliding block 122 to produce Raw movement, and moved by the bolt sliding block 122 along the rotary motion trace, and then the bolt sliding block 122 is promoted and is somebody's turn to do The prevention end 132 of locked component 13, and self-locking operation is completed in the two Soviet Union's bolt sliding block 122 and the prevention end 132.
As shown in figures 5 a-d, the another embodiment of self-locking operation is illustrated in figure, wherein force side is the prevention End 132, that is to say, that motive force F promotes the prevention end 132 to generate movement, and the prevention end 132 and the bolt Opposite movement is generated between sliding block 122, wherein the bolt sliding block 122 can reset mobile, and the prevention end 132 along one Rotary motion trace is moved, in moving process, the bolt sliding block 122 by the guiding face 1321 of the prevention end 132 simultaneously Into the prevention face 1322, and then complete self-locking.Also, as shown in figures 5 a-d, the bolt sliding block 122 is during movement, Initial position can be reset to, and then self-locking is completed in folding process.
As shown in fig. 6-7, the present invention further provides the fully collapsible invalid's chair using the folding and self-locking structure 10, the wherein folding Folded wheelchair 3 includes a main body frame 31 and a mobile devices 32, which is connected with the mobile devices 32 so that the row Sailing device 32 drives the main body frame 31 to move.The main body frame 31 includes a braced frame 311 and a back bracket 312, should Braced frame 311 is foldably connected the back bracket 312, which includes a use of revenue to finance expense frame 3111 and a wheel support 3112, one end of the use of revenue to finance expense frame 3111 is arranged on the back bracket 312, and the use of revenue to finance expense frame 3111 is around the back bracket 312 collapsibly rotate, and it is foldable which includes at least four-wheel 321, the wheel support 3112 and back bracket 312 Ground connects, which is separately positioned on the corner of the wheel support 3112, convenient for keeping balancing and the fully collapsible invalid's chair 3 being driven to move It is dynamic.
Details enlarged drawing as shown in Figure 10, the fully collapsible invalid's chair 3 shown in figure also have a folding and self-locking structure 10, In the folding and self-locking structure 10, including a bottom plate 11, which is arranged on the use of revenue to finance expense frame 3111, the bottom plate 11 have one Guiding groove 112；One latch assembly 12, the latch assembly 12 are arranged in the back bracket 312, and the one of the latch assembly 12 End is adapted to slide into the guiding groove 112, and the other end of the latch assembly 12 is connected with the bottom plate 11 and can around the bottom plate 11 Foldedly rotate；And a locked component 13, the locked component 13 is foldable with the bottom plate 11 and rotates with can resetting, the locking One end of component 13 prevents one end of the latch assembly 12 from slipping into the guiding groove 112, in the case where applying a motive force F, For the use of revenue to finance expense frame 311 with the back bracket 312 from folded state to opening state, one end of the latch assembly 12 compresses the locking group One end of part 13, the locked component 13 are moved so that the latch assembly 12 is able to continue to slip into the guiding groove 112, the locking Component 13 resets and the latch assembly is prevented to be returned from the guiding groove 112, and then completes self-locking.The present embodiment is so-called to be beaten Open state refers to that the use of revenue to finance expense frame 311 is in the back bracket 312 and opens and be crossed to form an open angle.
The so-called folded state of the present embodiment refers to that the use of revenue to finance expense frame 3111 is in the back bracket 312 and folds, opens Angle is intended to zero.
As shown in Fig. 8 A-E, wherein Fig. 8 A-E represent process signal of the fully collapsible invalid's chair 3 from opening state to folded state Figure.As shown in Fig. 9 A-E, wherein Fig. 9 A-E represent the process schematic of the fully collapsible invalid's chair 3 from opening state to folded state.
Specifically, which forms a maximum open angle A with the back bracket 312, and the wheel support 3112 is with being somebody's turn to do Back bracket 312 forms a maximum open angle B, and it is simultaneously to go out that maximum open angle A, which corresponds to maximum open angle B, It is existing.That is, keep the back bracket 312 static, and while opening the use of revenue to finance expense frame 311 to maximum open angle A, the wheel Stent 3112 is passively opened to maximum open angle B.
It should be noted that the use of revenue to finance expense frame 311 and the back bracket 312 be after opening to maximum open angle A, the seat Stent 311 is stationary state with the back bracket 312.Preferably, maximum open angle A is an angle for being suitable for human body sitting posture Degree can be between 90 ° -180 °.That is, in these cases, user takes the fully collapsible invalid's chair 3, the back of the body of user Against the back bracket 312, even at this point, the auto-lock function of the folding and self-locking structure 10, the fully collapsible invalid's chair 3 are not protected still Hold fixation.
And the fully collapsible invalid's chair 3 of the present invention sets the folding and self-locking structure 10 in the use of revenue to finance expense frame 311 and the back bracket 312 In the case of forming maximum open angle A, which generates relative displacement with the prevention end 132, and is led at this Draw and the separation side 1323 is moved on face 1321, due to the decrease of motive force F, restoring force H drives the prevention end 132 multiple Position, and then the bolt sliding block 122 is prevented to be skidded off from the guiding groove 112, complete the self-locking of the folding and self-locking structure 10.
It is beaten it is understood that being slightly less than the maximum in the open angle that the use of revenue to finance expense frame 311 and the back bracket 312 are formed In the case of opening angle A, it is arranged on the bottom plate 11 of the use of revenue to finance expense frame 311 and the locked component 13 and is arranged on the back bracket 312 latch assembly 12 can also complete the self-locking of the folding and self-locking structure 10.
In the above-described embodiments, the use of revenue to finance expense frame 311 and the junction of the back bracket 312 pass through the folding and self-locking structure 10 Complete the function of folding and self-locking.
It should be noted that the folding and self-locking structure 10 prevents other people or contactant to compress the back bracket 312 Towards the direction folded, to destroy the opening of the fully collapsible invalid's chair 3.
But at this point, unlock the stirring by the driving lever 133 of the locked component 13 of the folding and self-locking structure 10, and then Control being mutually shifted and unlocking for the prevention end 132 and the bolt sliding block 122.
Specifically, in the above-described embodiments, which needs stirring by operator, and keeps the driving lever 133 The movement of the prevention end 132 is driven, then on the other hand, operator's another hand controls the bolt sliding block 122 to skid off this and leads Draw sliding slot 112.That is, it is necessary to the operation of operator's both hands simultaneously during the folding and self-locking structure 10 is controlled.
In another embodiment, as shown in figure 11, which also has a control handle 134, wherein should Control handle 134 is arranged in the back bracket 312, and the control handle 134 controllably connects the driving lever 133, behaviour Author can drive movement and the unlock of the driving lever 133 by the control handle 134.There are one advantages for the control handle 134 It is, operator is capable of after the operation of the singlehanded completion control handle 134 and unlock, pushes directly on the back bracket 312, and And complete the operation folded.
It is noted that the use of revenue to finance expense frame 311 is connected in linkage with the wheel support 3112 by an at least linkage support 33, So that the use of revenue to finance expense frame 311 and the wheel support 3112 are simultaneously rotated around the back bracket 312.
Further, which is additionally provided with a driving device 322, which is drivingly connected this Wheel 321 so that the wheel 321 rotates and drives the fully collapsible invalid's chair 3.
Specifically, which is provided with the bottom plate 11 of the folding and self-locking structure 10 and is arranged on the bottom plate 11 The locked component 13, which is provided with the latch assembly 12 of the folding and self-locking structure 10.When user's driving should In the case that use of revenue to finance expense frame 311 is folded to the back bracket 312, the bolt of the latch assembly 12 of the use of revenue to finance expense frame 311 is arranged on The opening of sliding block 122 towards the guiding groove 112 of the bottom plate 11 for being arranged on the back bracket 312 slips into.
And the motive force F applied in user promotes the bolt sliding block 122 to compress the resistance of the locked component 13 Not-go-end first 132, since the prevention end 132 is subject to the pulling of restoring force H simultaneously and is intended to be returned to initial state.Therefore Motive force F is more than restoring force H, which continues towards 112 inside movement of the guiding groove, while drives and be somebody's turn to do The movement of the prevention end 132 of locked component 13.
It is understood that in the present embodiment, the bottom plate 11 and the locked component 13 can also be arranged on the use of revenue to finance expense On frame 3111, which is arranged in the back bracket 312.
It is understood that in another embodiment, the bottom plate 11 and the locked component 13 can also be arranged on this On wheel support 3112, which is arranged in the back bracket 312.
It is understood that in another embodiment, which can also be arranged on the use of revenue to finance expense frame 3111, The bottom plate 11 and the locked component 13 are arranged on the back bracket 312.
It is understood that in another embodiment, which can also be arranged on the wheel support 3112, The bottom plate 11 and the locked component 13 are arranged on the back bracket 312.
According to the first embodiment of above-mentioned folding and self-locking structure 10, the present invention provides a folding and self-locking method, including：
A, relative movement of both ends 132 for a bottom plate 11 is prevented in response to a bolt sliding block 122 and one, it is described to insert One guiding face 1321 of pin sliding block 122 from the prevention end 132 is intended to a prevention face 1322；And
B, when the bolt sliding block 122 is completely into the prevention face 1322, the prevention end 132 locks described insert Sliding block 122 is sold, and then completes self-locking.
The embodiment shown in Fig. 2A-D in the invention described above, the present invention in step a further comprise following step Suddenly：
A1, promoted in response to a bolt sliding block 122, the bolt sliding block 122 is along a rotary motion trace and around a bottom Plate 11 carries out axis rotation；
A2, a prevention end 132 is touched in the bolt sliding block 122, and the bolt sliding block 122 can promote institute It states in the case of preventing end 132, initial position is left in the prevention end 132；And
In the case that initial position is left in a3, the prevention end 132, the bolt sliding block 122 slips over the prevention end First 132 guiding face 1321 to one is prevented in face 1322.
According to the embodiment shown in above-mentioned Fig. 5 A-D, step a further comprises the following steps in the present invention：
A1, promoted in response to a prevention end 132, the prevention end 132 is along a rotary motion trace and around a bottom Plate 11 carries out axis rotation；
A2, a bolt sliding block 122 is touched in the prevention end 132, and the prevention end 132 can promote institute In the case of stating bolt sliding block 122, the bolt sliding block 122 leaves initial position；And
It is described to prevent the one of end 132 from preventing face 1322 in the case that a3, the bolt sliding block 122 leave initial position Receive the bolt sliding block come from a guiding face 1321.
Further, present invention additionally comprises a self-locking deployment methods after step b：
C, in response to the movement of a driving lever 133, the prevention end 132 moves and leaves initial position；And
D, in the case that the bolt sliding block 122 is by movement, the bolt sliding block 122 prevents 132 institute of end from described It is left in the prevention face of stating 1322, and completes to unlock.
In the another embodiment of the above method, the bottom plate 11 further includes a guiding groove 112, wherein the rotation The part of track is overlapped with the guiding groove 112, and one end of the locked component 13 prevents one end of the latch assembly 12 The guiding groove 112 is slipped into, in the case where applying a motive force, one end of the latch assembly 12 compresses the locking group One end of part 13, the locked component 13 are moved so that the latch assembly 12 is able to continue to slip into the guiding groove 112, The locked component 13 resets and the latch assembly 12 is prevented to be returned from the guiding groove 112, and then completes self-locking.
It should be understood by those skilled in the art that foregoing description and attached the embodiment of the present invention shown in figure are only used as illustrating And it is not intended to limit the present invention.The purpose of the present invention has been fully and effectively achieved.The function and structural principle of the present invention exists It shows and illustrates in embodiment, under without departing from the principle, embodiments of the present invention can have any deformation or modification.

Claims (29)

  1. A 1. folding and self-locking structure, which is characterized in that including：
    One bottom plate；
    One latch assembly, the latch assembly generate axis rotation with the bottom plate, and the latch assembly includes a bolt sliding block； And
    One locked component, the locked component generate axis rotation with the bottom plate, and the locked component includes one and prevents end, Wherein, the locked component and the latch assembly relative position move, and in a folded configuration, the locked component fixes institute State latch assembly, and the reducible movement of both the locked component and the latch assembly so that the folding and self-locking knot Structure can from unfolded state to folded state during complete self-locking operation.
  2. 2. folding and self-locking structure according to claim 1, which is characterized in that wherein described bolt sliding block is around the bottom plate Axis rotation simultaneously forms a rotary motion trace, and the locked component can reset ground axis rotation, the prevention end with the bottom plate With an initial position and it is arranged in the rotary motion trace,
    In auto-lock process, the bolt sliding block drives the prevention end to leave the initial position, and then the bolt is slided Block is continued to move to along the rotary motion trace, in the case where the bolt sliding block crosses the prevention end, the prevention end Head is reset to the initial position, and the bolt sliding block is prevented to return, meanwhile, the prevention end prevents the bolt sliding block It moves on, and then completes self-locking.
  3. 3. folding and self-locking structure according to claim 1, which is characterized in that wherein described prevention end is around the bottom plate Axis rotation simultaneously forms a rotary motion trace, and the bolt sliding block can reset ground axle center with the bottom plate and move, the bolt sliding block With an initial position and it is arranged in the rotary motion trace,
    In auto-lock process, the prevention end drives the bolt sliding block to leave the initial position, and then the prevention end Head is continued to move to along the rotary motion trace, and in the case of crossing the bolt sliding block in the prevention end, the bolt is slided Block reset completes self-locking to the initial position.
  4. 4. folding and self-locking structure according to claim 2, which is characterized in that the bottom plate has a guiding groove, described The part of rotary motion trace is overlapped with the guiding groove, and one end of the locked component prevents one end of the latch assembly from slipping into The guiding groove, in the case where applying a motive force, one end of the latch assembly compresses one end of the locked component, The locked component is moved so that the latch assembly is able to continue to slip into the guiding groove, and the locked component resets simultaneously The latch assembly is prevented to be returned from the guiding groove, and then completes self-locking.
  5. 5. folding and self-locking structure according to claim 4, which is characterized in that the bottom plate has a first side and one the Two side faces, wherein the latch assembly is arranged on the first side of the bottom plate, wherein the locked component is set In the second side of the bottom plate, one end of the latch assembly has a bolt sliding block, and the bolt sliding block is from described First side extends to the second side.
  6. 6. folding and self-locking structure according to claim 5, which is characterized in that wherein described folding and self-locking structure also has extremely Few two positive stop ends, wherein the positive stop end is arranged on the bottom plate, the positive stop end limits the movement of the locked component Scope simultaneously forms a stop zone, and the guiding groove has an opening and a passage, wherein the passage is located at the /V In region so that the prevention end can be moved at the passage of the guiding groove.
  7. 7. folding and self-locking structure according to claim 6, which is characterized in that the bolt sliding block quilt of the latch assembly One motive force is driven to be slipped into from the opening of the guiding groove, and the bolt shoe contact simultaneously compresses the prevention end Head so that the prevention end is moved to that the bolt sliding block is allowed to go successively to the guiding groove.
  8. 8. folding and self-locking structure according to claim 7, which is characterized in that the prevention end has a guiding face and one Prevention face, the bolt shoe contact and the guiding face for compressing the prevention end, the guiding face guide the bolt Sliding block so that while the prevention end is moved, the bolt sliding block passes through the guiding face.
  9. 9. folding and self-locking structure according to claim 8, which is characterized in that the prevention end also has one to separate side, The prevention face and the guiding face are in the both sides on the separation side, and the prevention face and the direction side of the guiding face It is at an angle to shape so that after the bolt sliding block is by the separation side, the prevention end allow the bolt sliding block after It is continuous to enter the guiding groove.
  10. 10. folding and self-locking structure according to claim 9, which is characterized in that in the stop zone, the locking group Part forms a restoring force, and the restoring force resets ground and pulls the prevention end, in the stop zone, the prevention end Initial position is reset to, the prevention face for preventing end prevents the bolt sliding block from returning.
  11. 11. folding and self-locking structure according to claim 1, which is characterized in that the bottom plate has a first connecting portion, institute The other end for stating latch assembly has a second connecting portion, wherein the first connecting portion and the mutual spiral shell of the second connecting portion It connects, and the latch assembly is collapsibly rotated around the bottom plate；Wherein described bottom plate also has one the 4th connecting portion, institute The other end for stating locked component has one the 3rd connecting portion, and the 3rd connecting portion and the 4th connecting portion are mutually spirally connected, and And the locked component is collapsibly rotated around the bottom plate.
  12. 12. folding and self-locking structure according to claim 1, which is characterized in that the folding and self-locking structure also has a bullet Property element, one end of the elastic element are connected to the locked component, and one end of the elastic element is connected to the bottom plate, And then the restoring force is formed, the locked component to be driven to reset.
  13. 13. folding and self-locking structure according to claim 12, which is characterized in that the locked component also has a driving lever, The driving lever drivingly controls the prevention end, and in the stop zone, the prevention end is controlled by the driving lever Movement.
  14. A 14. folding and self-locking frame, which is characterized in that including：
    One first folding stand；
    One second folding stand, first folding stand and second folding stand collapsibly rotate；And
    One folding and self-locking structure, wherein the folding and self-locking structure includes：
    One bottom plate, the bottom plate are arranged on first folding stand；
    One latch assembly, the latch assembly are arranged on second folding stand, the latch assembly and the bottom plate axle center It rotates, the latch assembly includes a bolt sliding block, and the bolt sliding block is around the bottom plate axis rotation and forms a rotation Track；And
    One locked component, the locked component can reset ground axis rotation with the bottom plate, and the locked component, which includes one, to be prevented End, the prevention end have an initial position and are arranged in the rotary motion trace,
    Wherein, first folding stand and second folding stand generate movement folded against so that the bolt sliding block receives One motive force so that the direction of advance of bolt sliding block along the rotary motion trace is compressed described in the prevention end and drive End is prevented to leave the initial position, the bolt sliding block is allowed for be continued to move to along the rotary motion trace, described In the case that bolt sliding block crosses the prevention end, the prevention end is reset to the initial position, and prevents described insert The direction of advance for selling sliding block against the rotary motion trace returns, and the prevention end prevents the bolt sliding block from continuing on The rotary motion trace is advanced, and then completes self-locking.
  15. 15. folding and self-locking frame according to claim 14, which is characterized in that in first folding stand and described second Folding stand provides the motive force in the case of fold into opening.
  16. 16. folding and self-locking frame according to claim 15, which is characterized in that the bottom plate has a guiding groove, institute The part for stating rotary motion trace is overlapped with the guiding groove, and one end of the locked component prevents one end of the latch assembly from sliding Enter the guiding groove, in the case where applying the motive force, one end of the latch assembly compresses the locked component One end, the locked component are moved so that the latch assembly is able to continue to slip into the guiding groove, the locked component It resets and the latch assembly is prevented to be returned from the guiding groove, and then complete self-locking.
  17. A 17. fully collapsible invalid's chair, which is characterized in that including：
    One main body frame, the main body frame include a braced frame and a back bracket, and the supporting support is leaned on around described Back braces collapsibly rotates, wherein the supporting support includes a use of revenue to finance expense frame and a wheel support, the use of revenue to finance expense frame and the wheel Stent is connected in linkage so that the use of revenue to finance expense frame around the back bracket rotate when, the wheel support is simultaneously around institute Back bracket rotation is stated, the braced frame and the back bracket have a maximum open angle；
    One mobile devices, the mobile devices include multiple wheels, and the wheel is arranged on the wheel support to drive the folding Folded wheelchair rotates；And
    One folding and self-locking structure, the folding and self-locking structure are arranged on the main body frame, wherein the folding and self-locking knot Structure includes：
    One bottom plate, the bottom plate are arranged in the supporting support；
    One latch assembly, the latch assembly and the bottom plate axis rotation, the latch assembly includes a bolt sliding block, described Bolt sliding block is around the bottom plate axis rotation and forms a rotary motion trace；And
    One locked component, the locked component are arranged in the back bracket, and the locked component can be answered with the bottom plate Position ground axis rotation, the locked component include one and prevent end, and the prevention end has an initial position and is arranged on In the rotary motion trace,
    Wherein, the supporting support of the main body frame and the back bracket generate movement folded against so that the bolt is slided Block receives a motive force so that the direction of advance of bolt sliding block along the rotary motion trace compresses the prevention end and band The initial position is left in the dynamic prevention end, and the bolt sliding block is allowed for be continued to move to along the rotary motion trace, In the case where the bolt sliding block crosses the prevention end, and the supporting support and the back bracket reach described Maximum open angle, the prevention end is reset to the initial position, and prevents the bolt sliding block against the rotation rail The direction of advance of mark returns, and the advance side for preventing end that the bolt sliding block is prevented to continue on the rotary motion trace March forward, so complete the fully collapsible invalid's chair open to during maximum open angle by self-locking.
  18. 18. fully collapsible invalid's chair according to claim 17, which is characterized in that the bottom plate is arranged on the use of revenue to finance expense frame.
  19. 19. fully collapsible invalid's chair according to claim 17, which is characterized in that the bottom plate is arranged on the wheel support.
  20. 20. fully collapsible invalid's chair according to claim 17, which is characterized in that the bottom plate have a guiding groove, described turn The part of dynamic rail mark is overlapped with the guiding groove, and one end of the locked component prevents one end of the latch assembly from slipping into institute Guiding groove is stated, in the case where applying the motive force, one end of the latch assembly compresses one end of the locked component, The locked component is moved so that the latch assembly is able to continue to slip into the guiding groove, and the locked component resets simultaneously The latch assembly is prevented to be returned from the guiding groove, and then completes self-locking.
  21. 21. fully collapsible invalid's chair according to claim 20, which is characterized in that the locked component also has a driving lever, described Driving lever drivingly controls the prevention end, and in the stop zone, the shifting for preventing end is controlled by the driving lever It is dynamic.
  22. 22. fully collapsible invalid's chair according to claim 21, which is characterized in that the fully collapsible invalid's chair further includes a control handle, Wherein described control handle is arranged on the main body frame, and the control handle controllably connects the driving lever.
  23. 23. according to any fully collapsible invalid's chairs of claim 17-22, which is characterized in that it is dynamic that the mobile devices further include one Power apparatus, the power set electrical connection is described to be taken turns that the wheel is driven to rotate and then drives the fully collapsible invalid's chair.
  24. 24. fully collapsible invalid's chair according to claim 23, which is characterized in that the fully collapsible invalid's chair further includes a foot support and a branch Frame, wherein the foot support is collapsibly arranged on the wheel support, the head bracket is collapsibly arranged on described Back bracket.
  25. 25. fully collapsible invalid's chair according to claim 24, which is characterized in that the fully collapsible invalid's chair further includes an armrest support, described Armrest support is collapsibly arranged in the supporting support.
  26. 26. a folding and self-locking method, step are, including：
    A, the relative movement of both ends for a bottom plate is prevented in response to a bolt sliding block and one, the bolt sliding block is from described A guiding face of end is prevented to be intended to a prevention face；And
    B, when the bolt sliding block is completely into the prevention face, the prevention end locks the bolt sliding block, and then complete Into self-locking.
  27. 27. folding and self-locking method according to claim 26, wherein step a further comprise the steps：
    A1, promoted in response to a bolt sliding block, the bolt sliding block carries out axle center along a rotary motion trace and around a bottom plate It rotates；
    A2, end is prevented in the bolt shoe contact to one, and the bolt sliding block can promote the prevention end In the case of, initial position is left in the prevention end；And
    In the case that initial position is left in a3, the prevention end, the bolt sliding block slips over a guiding of the prevention end Face is in a prevention face.
  28. 28. folding and self-locking method according to claim 26, wherein step a further comprise the following steps：
    A1, promoted in response to a prevention end, the prevention end carries out axle center along a rotary motion trace and around a bottom plate It rotates；
    A2, a bolt sliding block is touched in the prevention end, and the prevention end can promote the bolt sliding block In the case of, the bolt sliding block leaves initial position；And
    It is described to prevent the one of end face is prevented to receive from a guiding face in the case that a3, the bolt sliding block leave initial position And the bolt sliding block come.
  29. 29. folding and self-locking method according to claim 26 further includes a self-locking opening side after step b Method, step are：
    C, in response to the movement of a driving lever, the prevention end is mobile and leaves initial position；And
    D, in the case that the bolt sliding block is moved, the bolt sliding block from it is described prevention end the prevention face in from It opens, and completes to unlock.
CN201810031588.5A 2017-08-18 2018-01-12 Folding self-locking structure, folding self-locking frame, folding wheelchair and method thereof Active CN108078697B (en)

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CN108721007A (en) * 2018-06-21 2018-11-02 苏州凯道智能设备有限公司 A kind of folding electric wheelchair
CN110251327A (en) * 2019-07-09 2019-09-20 苏州凯道智能设备有限公司 A kind of staggered form foldable electric wheeled chair
CN113230049A (en) * 2021-03-29 2021-08-10 浙江英洛华康复器材有限公司 Folding wheelchair
CN113648142A (en) * 2021-07-08 2021-11-16 佛山市东方医疗设备厂有限公司 Wheelchair capable of being flexibly adjusted in multiple directions
CN113911230A (en) * 2021-11-26 2022-01-11 合肥工业大学 Folding wheel mechanism for foot mechanism of unmanned metamorphic vehicle and foot mechanism
CN115350011A (en) * 2022-09-09 2022-11-18 上海邦邦机器人有限公司 Folding wheelchair

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CN108078697B (en) * 2017-08-18 2024-07-19 张娜 Folding self-locking structure, folding self-locking frame, folding wheelchair and method thereof
CN111619632A (en) * 2020-05-20 2020-09-04 安徽浦进轨道装备有限公司 Small trolley convenient to fold for rail high-speed rail

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CN113230049A (en) * 2021-03-29 2021-08-10 浙江英洛华康复器材有限公司 Folding wheelchair
CN113648142A (en) * 2021-07-08 2021-11-16 佛山市东方医疗设备厂有限公司 Wheelchair capable of being flexibly adjusted in multiple directions
CN113911230A (en) * 2021-11-26 2022-01-11 合肥工业大学 Folding wheel mechanism for foot mechanism of unmanned metamorphic vehicle and foot mechanism
CN113911230B (en) * 2021-11-26 2022-12-02 合肥工业大学 Folding wheel mechanism for foot mechanism of unmanned metamorphic vehicle and foot mechanism
CN115350011A (en) * 2022-09-09 2022-11-18 上海邦邦机器人有限公司 Folding wheelchair

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