CN111173365B

CN111173365B - Handle

Info

Publication number: CN111173365B
Application number: CN201811344980.1A
Authority: CN
Inventors: 傅海
Original assignee: Page International Hong Kong Co ltd
Current assignee: Page International Hong Kong Co ltd
Priority date: 2018-11-13
Filing date: 2018-11-13
Publication date: 2021-08-06
Anticipated expiration: 2038-11-13
Also published as: CN111173365A

Abstract

The invention is suitable for the field of door and window hardware accessories, and discloses a handle, which comprises a base, a shifting rod connected to the base in a sliding manner, and a handle connected to the base in a rotating manner, wherein a ratchet wheel assembly driven by the handle and used for driving the shifting rod to slide is arranged in the base, a reversing structure is arranged between the ratchet wheel assembly and the shifting rod, and the handle or the base is provided with a switching assembly used for controlling the ratchet wheel assembly to switch the sliding direction of the shifting rod. The handle provided by the invention is small and compact in structure, the pull rod can translate along the second direction by repeatedly pulling the handle, the handle can realize a large translation stroke by the pull rod only by rotating the handle in a reciprocating manner by a small angle, and meanwhile, the pull rod can respectively translate in the positive and negative directions, so that the handle is convenient for a user to use.

Description

Handle

Technical Field

The invention belongs to the field of door and window hardware accessories, and particularly relates to a handle.

Background

The handle is provided with a gear on the handle in the prior handle, a rack is arranged on the shifting rod, the handle and the shifting fork are meshed through the gear and the rack, the shifting rod is driven to do translational motion by rotating the handle, and the shifting fork does reverse translational motion by reversely rotating the handle. The prior art is limited by the size of the handle base, the diameter of the gear on the handle cannot be designed too large, so that the shifting stroke of the shifting fork is very small even if the handle rotates 180 degrees, the diameter of the gear can only be increased for increasing the stroke, and the product is large in size and not beneficial to use.

Disclosure of Invention

The invention aims to solve at least one of the technical problems and provides a handle which is small and compact in structure, a large translation stroke can be realized by pulling a rod only by rotating the handle in a reciprocating manner by a small angle, and the pulling rods can respectively realize translation in the positive and negative directions, so that the handle is convenient for a user to use.

The technical scheme of the invention is as follows: the handle comprises a base, a shifting rod and a handle, wherein the shifting rod is connected with the base in a sliding mode, the handle is rotatably connected with the handle of the base, a ratchet wheel assembly which is driven by the handle and used for driving the shifting rod to slide is arranged in the base, a reversing structure is arranged between the ratchet wheel assembly and the shifting rod, and the handle or the base is provided with a switching assembly which is used for controlling the ratchet wheel assembly to switch the sliding direction of the shifting rod.

Specifically, the ratchet assembly comprises a first ratchet component and a second ratchet component, the shifting lever is provided with or connected with a first rack and a second rack, and the first ratchet component is meshed with the first rack; the reversing structure is a reversing gear, the second ratchet component is meshed with the second rack through the reversing gear, and the switching component comprises a first pawl which can be clamped on the first ratchet component to drive the first ratchet component and a second pawl which can be clamped on the second ratchet component to drive the second ratchet component; the switching assembly further comprises a switching key, and the switching key is used for switching the first pawl to be clamped in the first ratchet wheel component and the second pawl to be separated from the second ratchet wheel component, or switching the first pawl to be separated from the first ratchet wheel component and the second pawl to be clamped in the second ratchet wheel component.

Specifically, the first ratchet component comprises a first ratchet and a first gear, and the first gear and the first ratchet are coaxially connected; the second ratchet wheel component comprises a second ratchet wheel and a second gear, the second gear and the second ratchet wheel are coaxially connected, and the reversing gear is respectively meshed with the second rack and the second gear; the switching assembly further comprises a toggle column fixedly connected to the switching key, and a first cam part and a second cam part which are arranged on the toggle column, wherein the first cam part is used for controlling the first pawl to be clamped or separated from the first ratchet wheel, and the second cam part is used for controlling the second pawl to be clamped or separated from the second ratchet wheel.

Specifically, the first pawl and the second pawl are arranged in a vertically staggered mode, and the first cam portion and the second cam portion are arranged in a vertically staggered mode and in a circumferential direction in a staggered mode.

Specifically, one side of each of the first pawl and the second pawl is provided with an elastic piece.

Specifically, the root of the handle is sleeved on the first ratchet component and the second ratchet component.

Specifically, the roots of the first pawl and the second pawl are rotatably connected in a mounting cavity of the handle, the toggle column, the first cam part and the second cam part are also located in the mounting cavity, and the switch key is arranged on the outer surface of the handle.

Specifically, the base comprises an upper cover and a bottom cover, the upper cover and the bottom cover are combined to form an installation cavity, and a return elastic piece is arranged between the handle and the base.

Specifically, a handle cover is arranged on the mounting cavity.

Specifically, the outer surface of the handle cover is provided with a first positioning recess and a second positioning recess, and the switching key is provided with a spring and a steel ball which can be abutted against the first positioning recess or the second positioning recess.

According to the handle provided by the invention, a user can continuously drive the deflector rod to slide for a longer stroke along a first direction through reciprocating rotation of the handle and through the ratchet structure of the ratchet assembly, and can continuously drive the deflector rod to slide for a longer stroke along a second direction (opposite to the first direction) through reciprocating rotation of the handle through reversing of the switching assembly, so that a gear with a larger size is not required to be arranged, the product structure is convenient to miniaturize, the sliding stroke of the deflector rod is ensured, the size of a product is reduced on the premise of meeting the use characteristics, the handle can be suitable for application scenes such as narrow-frame doors and windows, and the like, when the switching key is at a first position, the handle is repeatedly pulled, the deflector rod can be translated along the first direction, when the switching key is at a second position, the handle is repeatedly pulled, the deflector rod can be translated along the second direction, and the handle only needs to be rotated for a very small angle, the dead man just can realize very big translation stroke, and positive and negative direction translation can be realized respectively to the dead man simultaneously, user's of being convenient for use.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective assembly view of a lever handle according to an embodiment of the present invention, wherein a switching key is located at a first position;

fig. 2 is a perspective exploded schematic view of a lever handle according to an embodiment of the present invention;

fig. 3 is a perspective view of a first ratchet member of a handle according to an embodiment of the present invention;

fig. 4 is a perspective view of a second ratchet member of a handle according to an embodiment of the present invention;

fig. 5 is a schematic perspective view of a toggle column in a handle according to an embodiment of the present invention;

fig. 6 is a schematic perspective assembly view of a switching key in a handle according to an embodiment of the present invention, the switching key being located at a second position;

fig. 7 is a schematic perspective assembly view of a handle and an upper cover of the handle according to an embodiment of the present invention;

fig. 8 is a schematic perspective assembly view of a shift lever in a lever handle according to an embodiment of the present invention, the shift lever sliding in a first direction;

fig. 9 is a schematic perspective assembly view of a shift lever in a lever handle according to an embodiment of the present invention, the shift lever sliding in a first direction;

fig. 10 is a schematic perspective assembly view of a shift lever of the lever handle according to the embodiment of the present invention, the shift lever sliding in a first direction;

fig. 11 is a schematic perspective assembly view of a shift lever of the lever handle according to the embodiment of the present invention, the shift lever sliding in a first direction;

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, directly disposed, connected or integrally formed, or indirectly disposed and connected through intervening components or intervening structures.

As shown in fig. 1 to 7, a lever handle according to an embodiment of the present invention includes a base 1, a shift lever (shift fork) 2 slidably connected to the base 1, and a handle (handle) 3 rotatably connected to the base 1, a ratchet assembly driven by the handle 3 and configured to drive the shift lever 2 to slide is disposed in the base 1, a reversing structure is disposed between the ratchet assembly and the shift lever 2, and the handle 3 or the base 1 is provided with a switching assembly configured to control the ratchet assembly to switch a sliding direction of the shift lever 2. The user holds handle 3 through reciprocating rotation, through ratchet assembly's partial ratchet structure, can drive driving lever 2 in succession along the longer stroke of first direction (forward) slip, through switching assembly's switching, the user holds handle 3 through reciprocating rotation, another part ratchet assembly and switching-over structure participate in work, can drive driving lever 2 in succession along the second direction (reverse, be reverse in the first direction) longer stroke of slip, thus, need not to set up the great gear of size, do benefit to the smallness of product structure, and driving lever 2's slip stroke can be guaranteed, under the prerequisite that satisfies the service property, the volume of product has been reduced, can be suitable for application scenes such as with narrow frame door and window, be convenient for user's use.

In particular, the ratchet assembly comprises a first ratchet member 41 and a second ratchet member 42, which first and

second ratchet members

41, 42 may be coaxially arranged. The shift lever 2 is provided with or connected with a first rack 21 and a second rack 22, and the first rack 21 and the second rack 22 can be arranged in parallel up and down. The first ratchet member 41 is engaged with the first rack 21; the reversing structure is a reversing gear 43, and the second ratchet component 42 is meshed with the second rack 22 through the reversing gear 43, namely, the transmission direction is changed by adding the reversing gear 43. The switching assembly includes a first pawl 51 engageable with the first ratchet member 41 to allow the handle shaft 3 to drive the first ratchet member 41 and a second pawl 52 engageable with the second ratchet member 42 to allow the handle shaft 3 to drive the second ratchet member 42, and the switching assembly includes a switch 61 for switching and controlling the engagement of the first pawl 51 with the first ratchet member 41 and the engagement of the second pawl 52 with the second ratchet member 42, wherein the switch 61 may be rotatable. The switch 61 is used to switch the first pawl 51 to be clamped in the first ratchet component 41 and the second pawl 52 to be disengaged from the second ratchet component 42, or to switch the first pawl 51 to be disengaged from the first ratchet component 41 and the second pawl 52 to be clamped in the second ratchet component 42.

Specifically, the first ratchet component 41 includes a first ratchet wheel 411 and a first gear 412, the first ratchet wheel 411 and the first gear 412 are fixedly connected or integrally formed, and the first ratchet wheel 411 and the first gear 412 rotate synchronously. The first gear 412 and the first ratchet wheel 411 are coaxially connected.

Specifically, the second ratchet component 42 includes a second ratchet 421 and a second gear 422, the second ratchet 421 and the second gear 422 are fixedly connected or integrally formed, and the second ratchet 421 and the second gear 422 rotate synchronously. The second gear 422 and the second ratchet 421 are coaxially connected, and the first ratchet 411 and the first gear 412, and the second ratchet 421 and the second gear 422 are coaxially arranged. In a specific application, the first ratchet wheel 411 and the first gear 412 may have the same or different tooth shapes and be integrally connected or fixedly connected, and the second ratchet wheel 421 and the second gear 422 may have the same or different tooth shapes and be integrally connected or fixedly connected. The reversing gear 43 is respectively meshed with the second rack 22 and the second gear 422; the switch assembly further includes a toggle post 62 fixedly connected to the switch key 61, and a first cam portion 631 and a second cam portion 632 disposed on the toggle post 62, wherein the first cam portion 631 is used for controlling the first pawl 51 to be engaged with or disengaged from the first ratchet 411, and the second cam portion 632 is used for controlling the second pawl 52 to be engaged with or disengaged from the second ratchet 421. The first ratchet wheel 411 and the second ratchet wheel 421 are arranged adjacently up and down.

Specifically, the first pawl 51 and the second pawl 52 are arranged in a vertically staggered manner, the first cam portion 631 and the second cam portion 632 are arranged in a vertically staggered manner and in a circumferentially staggered manner, when the switch 61 is rotated to the first position, the first cam portion 631 can release the restriction on the first pawl 51, the first pawl 51 can be clamped to the first ratchet wheel 411, and simultaneously, the second cam portion 632 abuts against the second pawl 52, so that the second pawl 52 is disengaged from the second ratchet wheel 421. When the switch 61 is turned to the second position, the second cam portion 632 releases the restriction of the second pawl 52, the second pawl 52 can be engaged with the second ratchet 421, and the first cam portion 631 abuts against the first pawl 51 to disengage the first pawl 51 from the first ratchet 411.

Specifically, one side of each of the first and

second pawls

51 and 52 is provided with an elastic member 71, and the elastic member 71 may be a spring. When the switch 61 is rotated to drive the toggle post 62, and the corresponding first cam portion 631 and the second cam portion 632 are released, the elastic member 71 can clamp the corresponding first pawl 51 and the second pawl 52 to the first ratchet wheel 411 and the second ratchet wheel 421.

Specifically, the root of the handle 3 is sleeved on the first ratchet member 41 and the second ratchet member 42. The handle 3 can drive the shift lever 2 to move towards the first direction or the second direction continuously in a mode of reciprocating rotation for a plurality of times.

Specifically, the root parts of the first pawl 51 and the second pawl 52 are rotatably connected to the mounting cavity of the handle 3, the toggle column 62, the first cam portion 631 and the second cam portion 632 are also located in the mounting cavity, and the switch 61 is disposed on the outer surface of the handle 3, so that the user can rotate the switch 61.

Specifically, base 1 includes upper cover 11 and bottom 12, upper cover 11 and bottom 12 involutes and forms the installation cavity, hold handle 3 with be provided with return elastic component 72 between base 1, return elastic component 72 can be the spring, and after the user rotated and held handle 3, return elastic component 72 can make handle 3 automatic reverse reset, and the user only need in succession to the same direction rotate hold handle 3 can, be convenient for user's operation.

Specifically, a handle cover 31 is disposed on the mounting cavity to facilitate assembly and maintenance of the product.

Specifically, the handle cover 31 is provided with a first positioning recess (corresponding to the first position 601) and a second positioning recess (corresponding to the second position 602), and the switch 61 is provided with a spring 64 and a steel ball 65 which can be abutted against the first positioning recess or the second positioning recess. The first positioning cavity and the second positioning cavity can be in a concave shape or a hole position shape. By providing the spring 64 and the steel ball 65, the switch key 61 can be held at the first position 601 or the second position 602 when no external force is applied, and reliability is excellent.

In this embodiment, the switch key 61 is rigidly connected to the shift post, as shown in fig. 1, 8 and 9, when the switch key 61 is shifted to the first position, the second cam portion 632 on the shift post abuts against the second pawl 52 to disengage the second pawl 52 from the second ratchet 421, the first cam portion 631 on the shift post disengages from the first pawl 51, the first pawl 51 is inserted into the teeth of the first ratchet 411 under the action of the pawl compression spring, when the handle is pulled clockwise, the first pawl 51 pushes the first ratchet 411 to rotate in the same direction, the first ratchet 411 and the shift lever are in gear-rack engagement, the first ratchet 411 pushes the shift lever to translate in the first direction (the direction indicated by the arrow in fig. 9), and during this process, the second rack 22 can drive the second ratchet member 42 to idle. When the handle 3 rotates counterclockwise under the action of the handle return spring, the first pawl 51 slides on the first ratchet wheel 411, the first ratchet wheel 411 stops rotating, the pulling rod stops translating, when the handle 3 rotates clockwise continuously, the pulling rod continues translating along the first direction, namely when the switching key 61 is pulled to the first position, the handle 3 rotates by a certain angle by clockwise pulling, after the handle 3 rotates counterclockwise and resets, the handle 3 rotates by a certain angle by clockwise pulling, and multiple cycles are performed, so that the pulling rod can be driven to translate along the first direction by a required stroke.

As shown in fig. 7, 10 and 11, when the switch 61 is pulled to the second position, the first cam portion 631 of the pull column abuts against the first pawl 51 to disengage the first pawl 51 from the first ratchet wheel 411, the second cam portion 632 of the pull column disengages from the second pawl 52, the second pawl 52 is inserted into the teeth of the second ratchet wheel 421 by the pawl compression spring, when the handle is pulled clockwise, the second pawl 52 pushes the second ratchet 421 to rotate clockwise, the second ratchet 421 is in gear engagement with the third gear, the second ratchet 421 pushes the reversing gear 43 (the third gear) to rotate counterclockwise, the reversing gear 43 (the third gear) is in gear engagement with the rack of the second rack 22 of the pull rod, the third gear pushes the pull rod to translate along the second direction (the direction indicated by the arrow in fig. 11), and in this process, the first rack 21 can drive the first ratchet member 41 to idle. When the handle rotates anticlockwise under the action of the handle return spring, the second pawl 52 slides on the second ratchet wheel 421, the second ratchet wheel 421 stops rotating, the pulling rod stops translating, when the handle rotates clockwise continuously, the pulling rod continues translating along the second direction, namely when the switching key 61 is pulled to the second position, the handle 3 is pulled clockwise to rotate for a certain angle, after the handle 3 rotates anticlockwise to reset, the handle 3 is pulled clockwise to rotate for a certain angle, and multiple cycles are performed, so that the pulling rod can be driven to translate for a required stroke along the first direction.

According to the handle provided by the embodiment of the invention, a user rotates the handle 3 in a reciprocating manner, and through the ratchet structure of the ratchet assembly, the shift lever 2 can be continuously driven to slide for a long stroke along the first direction, and by reversing the switching component, a user rotates the handle 3 in a reciprocating way, the driving lever 2 can be continuously driven to slide for a longer stroke along the second direction (opposite to the first direction), thus, a gear with larger size is not required to be arranged, the product structure is convenient to be miniaturized, the sliding stroke of the driving lever 2 can be ensured, under the prerequisite that satisfies the service property, reduced the volume of product, can be suitable for and use scenes such as with narrow frame door and window, the user pulls repeatedly and holds the handle and make the dead lever realize the translation of long stroke, and the dead lever if need reverse translation, only needs to pull switch key 61 to another position, pulls repeatedly again and holds the handle, and the dead lever will do reverse translation, and handle 3 operations are light laborsaving.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A handle comprises a base, a shifting lever and a handle, wherein the shifting lever is connected to the base in a sliding mode, the handle is rotatably connected to the base, the handle is characterized in that a ratchet wheel assembly is arranged in the base, the ratchet wheel assembly is driven by the handle and used for driving the shifting lever to slide, a reversing structure is arranged between the ratchet wheel assembly and the shifting lever, and the handle or the base is provided with a switching assembly used for controlling the ratchet wheel assembly to switch the sliding direction of the shifting lever; the ratchet wheel assembly comprises a first ratchet wheel component and a second ratchet wheel component, the first ratchet wheel component and the second ratchet wheel component are coaxially arranged, the driving lever is provided with or connected with a first rack and a second rack, the first rack and the second rack are arranged in parallel up and down, and the first ratchet wheel component is meshed with the first rack; the reversing structure is a reversing gear, the second ratchet component is meshed with the second rack through the reversing gear, and the switching component comprises a first pawl which can be clamped on the first ratchet component to drive the first ratchet component and a second pawl which can be clamped on the second ratchet component to drive the second ratchet component; the switching assembly further comprises a switching key, and the switching key is used for switching the first pawl to be clamped in the first ratchet wheel component and the second pawl to be separated from the second ratchet wheel component, or switching the first pawl to be separated from the first ratchet wheel component and the second pawl to be clamped in the second ratchet wheel component.

2. The handle according to claim 1, wherein the first ratchet member includes a first ratchet wheel and a first gear wheel, the first gear wheel and the first ratchet wheel being coaxially coupled; the second ratchet wheel component comprises a second ratchet wheel and a second gear, the second gear and the second ratchet wheel are coaxially connected, and the reversing gear is respectively meshed with the second rack and the second gear; the switching assembly further comprises a toggle column fixedly connected to the switching key, and a first cam part and a second cam part which are arranged on the toggle column, wherein the first cam part is used for controlling the first pawl to be clamped or separated from the first ratchet wheel, and the second cam part is used for controlling the second pawl to be clamped or separated from the second ratchet wheel.

3. The handle according to claim 2, wherein the first and second pawls are arranged in a vertically offset manner, and the first and second cam portions are arranged in a vertically offset manner and in a circumferentially offset manner.

4. The handle according to claim 2, wherein the first and second pawls each have a resilient member provided on one side thereof.

5. The handle of claim 2, wherein the root of the handle bar is received in the first and second ratchet members.

6. The handle according to claim 5, wherein the first and second pawls are rotatably connected at their base portions to a mounting cavity of the handle bar, the toggle post, the first and second cam portions are also located in the mounting cavity, and the switch key is disposed on an outer surface of the handle bar.

7. The handle as set forth in claim 1, wherein the base includes an upper cover and a bottom cover, the upper cover and the bottom cover being coupled to form a mounting chamber, and a return spring is disposed between the handle and the base.

8. The handle according to claim 6, wherein a handle cover is provided on the mounting chamber.

9. The handle according to claim 8, wherein the outer surface of the handle cover is provided with a first positioning recess and a second positioning recess, and the switch is provided with a spring and a steel ball which can be abutted against the first positioning recess or the second positioning recess.