CN212272808U - Stable damping articulated shaft - Google Patents

Abstract

The utility model discloses a firm type damping articulated shaft, firm type damping articulated shaft is including the third axle bed, the third axle body, the fourth axle body, snap ring and third spring, the third axle bed is bucket-shaped, the bottom of third axle bed is passed to the rear end of fourth axle body, and the fourth axle body can only slide around the relative third axle bed, the front end of fourth axle body is formed with the fourth damping face, the rear end face of third axle body is formed with the fifth damping face, the fourth damping face sets up with the fifth damping face relatively, snap ring fixed connection is in the opening part of third axle bed, the snap ring is passed to the front end of third axle body, the front end of third axle body is used for being connected with predetermined fixed axle sleeve, the rear end of third axle bed is used for being connected with predetermined axis sleeve, the third spring housing is located on the fourth axle body, the both ends of third spring butt respectively in fourth axle body and third axle bed. The utility model discloses an overall structure is compacter, complete, can improve production efficiency to and satisfy big batch, low-cost production requirement betterly.

Description

Stable damping articulated shaft

Technical Field

The utility model relates to a the hinge mechanism especially relates to a firm type damping articulated shaft.

Background

Along with intelligent electronic equipment's rapid development, a great variety of intelligent products have appeared in the market, to some electronic product that have folding function, it generally only realizes hinged joint through the pivot, but this kind of hinge mode can only realize the upset function, when two folding component upset to predetermineeing the angle, can't fix a position at this angle, lack the damping hinge function, adopt the damping oil among the prior art simultaneously, the design of damping cream, it must consider leakproofness scheduling problem, so the design degree of difficulty is great, product cost is higher, be difficult to satisfy the production requirement of big batch, low cost.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to prior art not enough, provide a simple structure, easily realize, have rotation and locate function, present, the firm reliable damping articulated shaft of structure with independent component.

In order to solve the technical problem, the utility model adopts the following technical scheme.

A stable damping articulated shaft comprises a third shaft seat, a third shaft body, a fourth shaft body, a clamping ring and a third spring, wherein the third shaft seat is barrel-shaped, the third shaft body and the fourth shaft body are arranged in the third shaft seat, the rear end of the fourth shaft body penetrates through the bottom of the third shaft seat, the fourth shaft body can only slide back and forth relative to the third shaft seat, a fourth damping surface is formed at the front end of the fourth shaft body, a fifth damping surface is formed at the rear end surface of the third shaft body, the fourth damping surface and the fifth damping surface are oppositely arranged, the clamping ring is fixedly connected to an opening of the third shaft seat, the front end of the third shaft body penetrates through the clamping ring, the front end of the third shaft body is used for being connected with a preset fixed shaft sleeve, and the rear end of the third shaft body is used for being connected with the preset rotating shaft sleeve, the third spring is sleeved on the fourth shaft body, two ends of the third spring are respectively abutted against the fourth shaft body and the third shaft seat, and the fourth damping surface and the fifth damping surface are abutted tightly by means of elastic force applied by the third spring.

Preferably, the fourth damping surface is formed with a fourth toothed ring, the fifth damping surface is formed with a fifth toothed ring, and the fourth toothed ring and the fifth toothed ring are engaged with each other.

Preferably, the teeth of the fourth tooth ring and the teeth of the fifth tooth ring are isosceles triangle teeth.

Preferably, a rear lug is formed at the rear end of the third shaft seat, and the rear lug is fixedly connected with a preset rotating shaft sleeve.

Preferably, a front lug is formed at the front end of the third shaft body, the front lug penetrates through the snap ring and extends outwards, and the front lug is fixedly connected with a preset fixed shaft sleeve.

Preferably, two axle bed side openings have been seted up to the lateral wall of third axle bed, and two axle bed side openings symmetry are located the both sides of third axle bed, the edge of snap ring is formed with two side lugs, side lug with axle bed side opening one-to-one aligns, just side lug card is located in the axle bed side opening.

Preferably, the side projections are wedge-shaped projections.

Preferably, two clamping grooves are formed in the edge of the opening of the third shaft seat, the two clamping grooves are symmetrically arranged on two sides of the third shaft seat, two clamping blocks are formed in the edge of the clamping ring, the clamping blocks are aligned with the clamping grooves one by one, and the clamping blocks are clamped in the clamping grooves.

Preferably, the rear lug is close to the rear edge of the third shaft seat, an avoiding groove is formed in the inner side of the rear lug, the avoiding groove is aligned with the fourth shaft body, and the fourth shaft body can slide back and forth in the avoiding groove.

Preferably, two limiting slide blocks are formed on the side portion of the fourth shaft body, the two limiting slide blocks are symmetrically arranged on two sides of the fourth shaft body, two limiting slide grooves are formed in the bottom of the third shaft seat, the limiting slide grooves are aligned with the limiting slide blocks one by one, and the limiting slide blocks are arranged in the limiting slide grooves in a penetrating mode and are in sliding fit with the limiting slide blocks.

In the firm damping articulated shaft disclosed by the utility model, the third shaft seat and the third shaft body are respectively used for connecting a preset rotating shaft sleeve and a preset fixed shaft sleeve, under the action of elastic pressure exerted by the third spring, the fourth damping surface and the fifth damping surface are mutually abutted and tightly matched, when the rotating shaft sleeve rotates relative to the fixed shaft sleeve, the resistance between the fourth damping surface and the fifth damping surface is needed to be overcome to realize rotation, after the rotating shaft sleeve rotates relative to the fixed shaft sleeve by a preset angle, the rotating shaft sleeve is positioned at the angle position by the resistance between the fourth damping surface and the fifth damping surface, compared with the prior art, the utility model not only realizes the function of the damping shaft, but also has simple structure and easy realization, in addition, the utility model arranges the third shaft body, the fourth shaft body and the third spring in the third shaft seat, and simultaneously will the snap ring is fixed in the opening part of third axle seat makes an independent, complete articulated shaft component is constituteed to third axle seat, third axle body, fourth axle body, snap ring and third spring, in the manufacturing process, only need with damping articulated shaft integral component directly assemble in predetermineeing the position can, compare other structure that adopt scattered part, the utility model discloses an overall structure is compacter, complete, can improve production efficiency, moreover the utility model discloses damping performance is stronger, and the structure is more firm reliable, has satisfied big batch, low-cost production requirement betterly.

Drawings

Fig. 1 is a perspective view of the folded multifunctional charging stand;

fig. 2 is a first perspective view of the multifunctional charging stand after being unfolded;

fig. 3 is a second perspective view of the multifunctional charging stand after being unfolded;

fig. 4 is a partially exploded view of the multifunctional charging stand;

FIG. 5 is an exploded view of the folding seat;

fig. 6 is a partially exploded view of a second multifunctional charging stand;

fig. 7 is a partially exploded view three of the multifunctional charging stand;

FIG. 8 is an enlarged view of portion A of FIG. 7;

fig. 9 is a first exploded view of the damping hinge shaft;

fig. 10 is a second exploded view of the damping hinge shaft;

fig. 11 is a partial exploded view of the multifunctional charging stand four;

fig. 12 is a partial exploded view of the multifunctional charging stand five;

fig. 13 is a perspective view of an integrated damping hinge shaft;

fig. 14 is a first exploded view of the integrated damping hinge shaft;

fig. 15 is a second exploded view of the integrated damping hinge shaft;

fig. 16 is a partial exploded view six of the multi-function charging stand;

fig. 17 is a partially exploded view seven of the multifunctional charging stand;

fig. 18 is a first perspective view of the firm-type damping hinge shaft;

fig. 19 is a second perspective view of the firm-type damping hinge shaft;

fig. 20 is an exploded view of a firm damping hinge shaft;

fig. 21 is an exploded view of the firm damping hinge shaft.

Detailed Description

The present invention will be described in more detail with reference to the accompanying drawings and examples.

Example one

In the present embodiment, a firm damping hinge shaft is provided, as shown in fig. 16 to 21, wherein the firm damping hinge shaft 6 includes a third shaft seat 60, a third shaft body 61, a fourth shaft body 62, a snap ring 63 and a third spring 64, the third shaft seat 60 is barrel-shaped, the third shaft body 61 and the fourth shaft body 62 are both disposed in the third shaft seat 60, a rear end of the fourth shaft body 62 passes through a bottom of the third shaft seat 60, the fourth shaft body 62 can only slide back and forth relative to the third shaft seat 60, a front end of the fourth shaft body 62 is formed with a fourth damping surface 620, a rear end of the third shaft body 61 is formed with a fifth damping surface 610, the fourth damping surface 620 is disposed opposite to the fifth damping surface 610, the snap ring 63 is fixedly connected to an opening of the third shaft seat 60, a front end of the third shaft body 61 passes through the snap ring 63, the front end of the third shaft body 61 is used for being connected with a preset fixed shaft sleeve 15, the rear end of the third shaft base 60 is used for being connected with a preset rotating shaft sleeve 21, the third spring 64 is sleeved on the fourth shaft body 62, two ends of the third spring 64 are respectively abutted against the fourth shaft body 62 and the third shaft base 60, and the fourth damping surface 620 and the fifth damping surface 610 are abutted against each other by means of the elastic force exerted by the third spring 64.

In the above structure, the third shaft base 60 and the third shaft body 61 are respectively used for connecting a predetermined rotating shaft sleeve 21 and a predetermined fixed shaft sleeve 15, under the action of the elastic pressure applied by the third spring 64, the fourth damping surface 620 and the fifth damping surface 610 are tightly abutted and tightly matched with each other, when the rotating shaft sleeve 21 rotates relative to the fixed shaft sleeve 15, the resistance between the fourth damping surface 620 and the fifth damping surface 610 needs to be overcome to realize the rotation, and after the rotating shaft sleeve 21 rotates relative to the fixed shaft sleeve 15 by a predetermined angle, the rotating shaft sleeve 21 is positioned at the angular position by the resistance between the fourth damping surface 620 and the fifth damping surface 610, compared with the prior art, the utility model not only realizes the function of the damping shaft, but also has a simple structure and is easy to realize, in addition, the utility model arranges the third shaft body 61, the fourth shaft body 62 and the third spring 64 in the third shaft base 60, will simultaneously snap ring 63 is fixed in the opening part of third axle seat 60 makes third axle seat 60, third axis body 61, fourth axis body 62, snap ring 63 and third spring 64 constitute an independent, complete articulated shaft component, in the manufacturing process, only need with damping articulated shaft integral component directly assemble in predetermineeing the position can, compare other structure that adopts scattered part, the utility model discloses an overall structure is compacter, complete, can improve production efficiency, moreover the utility model discloses damping performance is stronger, and the structure is more firm reliable, has satisfied big batch, low-cost production requirement betterly.

In order to provide resistance for the two contact surfaces, in this embodiment, the fourth damping surface 620 is formed with a fourth tooth ring, and the fifth damping surface 610 is formed with a fifth tooth ring, which are engaged with each other.

Preferably, the teeth of the fourth tooth ring and the teeth of the fifth tooth ring are isosceles triangle teeth.

In this embodiment, a rear lug 601 is formed at the rear end of the third shaft base 60, and the rear lug 601 is fixedly connected to a preset rotating shaft sleeve 21.

Further, a front lug 611 is formed at the front end of the third shaft body 61, the front lug 611 passes through the snap ring 63 and extends outwards, and the front lug 611 is fixedly connected with a preset fixed shaft sleeve 15.

In practical applications, the rear lug 601 and the front lug 611 may be respectively and fixedly connected to the rotating shaft sleeve 21 and the fixed shaft sleeve 15 through screws or fixing posts, so that the connection relationship between the damping hinge shaft and an external device is more stable and reliable.

In order to realize snap ring 63 with reliable fixed of third axle seat 60, in this embodiment, two axle bed side openings 602 have been seted up to the lateral wall of third axle seat 60, and two axle bed side openings 602 symmetry are located the both sides of third axle seat 60, the edge of snap ring 63 is formed with two side projections 630, side projections 630 with axle bed side opening 602 one-to-one aligns, just side projections 630 card is located in the axle bed side opening 602.

In order to facilitate the engagement of the side protrusions 630, in this embodiment, the side protrusions 630 are wedge-shaped protrusions.

In order to fix the snap ring 63 and the third shaft base 60 more tightly, in this embodiment, two fastening grooves 603 are formed at an opening edge of the third shaft base 60, the two fastening grooves 603 are symmetrically disposed at two sides of the third shaft base 60, two fastening blocks 631 are formed at an edge of the snap ring 63, the fastening blocks 631 are aligned with the fastening grooves 603 one by one, and the fastening blocks 631 are fastened in the fastening grooves 603.

As a preferable mode, the rear lug 601 is close to the rear edge of the third shaft base 60, an avoiding groove 604 is formed in the inner side of the rear lug 601, the avoiding groove 604 is aligned with the fourth shaft body 62, and the fourth shaft body 62 can slide back and forth in the avoiding groove 604. The avoiding groove 604 helps to enlarge the sliding stroke of the fourth shaft 62, thereby improving the overall performance of the damping hinge shaft.

In order to realize that the fourth shaft body 62 can only slide back and forth relative to the third shaft seat 60, in this embodiment, two limiting sliding blocks 621 are formed at a side portion of the fourth shaft body 62, the two limiting sliding blocks 621 are symmetrically arranged at two sides of the fourth shaft body 62, two limiting sliding grooves 605 are formed at the bottom of the third shaft seat 60, the limiting sliding grooves 605 are aligned with the limiting sliding blocks 621 one by one, and the limiting sliding blocks 621 penetrate through the limiting sliding grooves 605 and are in sliding fit with the limiting sliding grooves. This is only a preferred implementation and other types of circumferential stop mechanisms may be used in practice.

Example two

In this embodiment, as shown in fig. 4 and 11 to 15, two ends of the fixed shaft sleeve 15 are respectively clamped with an integrated damping hinge shaft 5, one of the two integrated damping hinge shafts 5 is connected with the lantern ring 30 in a clamping manner, the other of the two integrated damping hinge shafts 5 is connected with the rotating shaft sleeve 21 in a clamping manner, and the folding seat 2 and the supporting plate 3 are turned over and positioned at a preset angle position by the damping rotation action of the integrated damping hinge shafts 5.

In order to realize the above-mentioned turning and positioning functions, the present embodiment provides an integrated damping hinge shaft, as shown in fig. 4 and 11 to 15, the integrated damping hinge shaft 5 includes a second shaft seat 50, a second shaft body 51, an end cap 52 and a second spring 53, the second shaft seat 50 is barrel-shaped, a third damping surface 500 is formed at the bottom of the inner side of the second shaft seat 50, the second shaft body 51 is disposed in the second shaft seat 50, a fourth damping surface 510 is formed at the end surface of the second shaft body 51, the third damping surface 500 is disposed opposite to and closely fitted to the fourth damping surface 510, the second shaft seat 50 is configured to be fastened with a preset rotating shaft sleeve 21, the second shaft body 51 is configured to be fastened with a preset fixed shaft sleeve 15, the end cap 52 covers an opening of the second shaft seat 50 and is fixedly connected with the second shaft body 50, the second spring 53 is sandwiched between the end cap 52 and the second shaft body 51, the third damping surface 500 and the fourth damping surface 510 are pressed against each other by the elastic force exerted by the second spring 53.

In the above structure, the second shaft seat 50 and the second shaft body 51 are respectively used for connecting a preset rotating shaft sleeve 21 and a preset fixed shaft sleeve 15, under the action of the elastic pressure applied by the second spring 53, the third damping surface 500 is tightly matched with the fourth damping surface 510, when the rotating shaft sleeve 21 rotates relative to the fixed shaft sleeve 15, the resistance between the third damping surface 500 and the fourth damping surface 510 needs to be overcome to realize rotation, and after the rotating shaft sleeve 21 rotates relative to the fixed shaft sleeve 15 by a preset angle, the rotating shaft sleeve 21 is positioned at the angular position by the resistance between the third damping surface 500 and the fourth damping surface 510, compared with the prior art, the utility model not only realizes the function of the damping shaft, but also has a simple structure and is easy to realize, in addition, the utility model discloses a second shaft body 51 and a second spring 53 are arranged in the second shaft seat 50, will simultaneously end cover 52 is fixed in the opening part of second axle seat 50 makes an independent, complete articulated shaft component is constituteed to second axle seat 50, second axle body 51, end cover 52 and second spring 53, in the manufacturing process, only need with damping articulated shaft integral component directly assemble in predetermineeing the position can, compare other structures that adopt scattered part, the utility model discloses an overall structure is compacter, complete, can improve production efficiency to and satisfy big batch, low-cost production requirement betterly.

Preferably, the third damping surface 500 is formed with a third tooth ring, and the fourth damping surface 510 is formed with a fourth tooth ring, which are engaged with each other.

Furthermore, the teeth of the third tooth ring and the teeth of the fourth tooth ring are isosceles triangle teeth.

But is not limited to this in practical application, and the third damping surface 500 and the fourth damping surface 510 may be rough friction planes as an alternative.

In order to facilitate the clamping and matching with the rotating shaft sleeve 21, in this embodiment, two first clamping grooves 501 are formed on the outer side of the second shaft seat 50, the two first clamping grooves 501 are symmetrically arranged on two sides of the second shaft seat 50, and the first clamping grooves 501 are used for being clamped and connected with a preset rotating shaft sleeve 21.

Preferably, a second central shaft 512 is formed at an end of the second shaft 51 facing away from the fourth damping surface 510, the second central shaft 512 passes through the end cap 52 and is in sliding fit with the end cap, and the second spring 53 is sleeved on the second central shaft 512. The second central shaft 512 can not only be conveniently sleeved with the second spring 53, but also be beneficial to enabling the second central shaft 512 to pass through the end cover 52 and then be in clamping connection with the fixed shaft sleeve 15.

In order to better engage with the fixed shaft sleeve 15 in a clamping manner, in this embodiment, a second clamping groove 511 is formed in one end of the second central shaft 512, which is far away from the fourth damping surface 510, and the second clamping groove 511 is used for being clamped and connected with a preset fixed shaft sleeve 15.

Regarding the preferable fixed relationship between the end cap 52 and the second shaft seat 50, in this embodiment, two insertion holes 502 are formed in the side wall of the second shaft seat 50, the two insertion holes 502 are symmetrically disposed on two sides of the second shaft seat 50, two insertion blocks 520 are formed at the edge of the end cap 52, the insertion blocks 520 are aligned with the insertion holes 502 one by one, and the insertion blocks 520 are clamped in the insertion holes 502.

In order to facilitate the insertion of the insert block 520, in this embodiment, a wedge surface 522 is formed on a side of the insert block 520 facing the second shaft seat 50.

In order to further prevent the end cover 52 from falling off or shifting, in this embodiment, two limiting grooves 503 are formed in the opening edge of the second shaft seat 50, the two limiting grooves 503 are symmetrically disposed on two sides of the second shaft seat 50, two limiting blocks 521 are formed in the edge of the end cover 52, the limiting blocks 521 are aligned with the limiting grooves 503 one by one, and the limiting blocks 521 are clamped in the limiting grooves 503.

Preferably, two external tangent surface portions 504 are formed on the outer side of the second shaft holder 50, and the two external tangent surface portions 504 are symmetrically formed on both sides of the second shaft holder 50. The outer surfaces 504 facilitate snap-fitting of the second hub 50 to other holes.

Further, the second shaft seat 50 and the second shaft body 51 are hollow for the convenience of passing a cable.

When the embodiment is combined with the multifunctional charging bracket, as an application example in the embodiment, the end cover 52 and the second central shaft 512 are inserted into the fixed shaft sleeve 15, an inner shaft sleeve clamping block 151 is formed in the fixed shaft sleeve 15, and the inner shaft sleeve clamping block 151 is used for clamping and matching a second clamping groove 511 at the end of the second central shaft 512, so as to realize clamping and connection.

Correspondingly, the second shaft base 50 is inserted into the rotating shaft sleeve 21, two inner shaft sleeve clamping blocks 211 are arranged on the inner side of the rotating shaft sleeve 21, the two inner shaft sleeve clamping blocks 211 are respectively aligned with the two first clamping grooves 501, and the inner shaft sleeve clamping blocks 211 are used for being clamped and matched with the first clamping grooves 501 to realize clamping connection. The above structure enables the rotation sleeve 21 and the fixed sleeve 15 to realize a damped rotation hinge connection.

Similarly, two inner collar cutting surface portions 301 are formed on the collar 30, the two inner collar cutting surface portions 301 are respectively aligned with the two outer cutting surface portions 504, and the inner collar cutting surface portions 301 are used for being in clamping fit with the outer cutting surface portions 504, so that clamping connection is achieved. The above structure can make the supporting plate 3 and the fixed shaft sleeve 15 realize the damping rotation hinge connection.

Based on the above structure characteristics, the lantern ring 30 can be hinged to the fixed shaft sleeve 15 through one integrated damping hinge shaft 5, and the rotating shaft sleeve 21 can be hinged to the fixed shaft sleeve 15 through another integrated damping hinge shaft 5, so that the supporting plate 3 and the folding seat 2 can be freely turned and positioned respectively through the matching relation, and the turning positions of the supporting plate 3 and the folding seat 2 can be conveniently adjusted.

EXAMPLE III

The embodiment provides a multifunctional charging bracket, which is shown in fig. 1 to 6 and includes a fixed base 1 and a foldable base 2, a front end edge of the fixed base 1 is hinged to a front end edge of the foldable base 2, so that the foldable base 2 can be turned over relative to the fixed base 1 by a predetermined angle, the fixed base 1 is provided with a first receiving groove 10 and a second receiving groove 11, the first receiving groove 10 and the second receiving groove 11 are respectively close to left and right side edges of the fixed base 1, a first card seat 12 is provided in the first receiving groove 10, and an edge of the first card seat 12 is hinged to an edge of the fixed base 1, so that the first card seat 12 can be turned over to an outer side of the fixed base 1, the first card seat 12 is provided with a bayonet 120 for placing a wireless charger 100, and the second card seat 13 is provided in the second card seat 11, the edge of the second card holder 13 is hinged to the edge of the fixed seat 1, so that the second card holder 13 can be turned over to the outside of the fixed seat 1, the second card holder 13 is provided with a charging plug 130, the folding seat 2 is internally provided with a wireless charging module 20, the fixed seat 1 is internally provided with a charging PCB 14, the charging plug 130 and the wireless charging module 20 are respectively and electrically connected to the charging PCB 14, and the charging plug 130 and the wireless charging module 20 are controlled by the charging PCB 14 to output energy.

In the above structure, the folding seat 2 and the fixing seat 1 can be folded or unfolded through the folding fit, and meanwhile, the fixing seat 1 is provided with the first accommodating groove 10 and the second accommodating groove 11, and the first clamping seat 12 and the second clamping seat 13 which can be turned over are arranged, wherein the folding seat 2 can wirelessly charge electronic equipment such as a mobile phone through the wireless charging module 20, the first clamping seat 12 can be used for clamping and fixing the wireless charger 100 of the smart watch, and the charging plug 130 on the second clamping seat 13 can be directly used for plug-in charging of the electronic equipment such as a TWS earphone box, compared with the prior art, the utility model integrates multiple charging modes, and enables the charging support to be rapidly unfolded or stored through the folding mode, thereby not only meeting multiple charging requirements, but also greatly facilitating the storage and carrying, better meeting the needs of users and the market demands.

In order to fold the first clamping seat 12, in this embodiment, two first axle heads 121 are formed on the first clamping seat 12, the two first axle heads 121 are symmetrically disposed at two ends of the first clamping seat 12, and the first axle heads 121 are inserted into the fixing seat 1 and rotatably connected to each other.

In order to fold the second clamping seat 13, in this embodiment, two second shaft heads 131 are formed on the second clamping seat 13, the two second shaft heads 131 are symmetrically disposed at two ends of the second clamping seat 13, and the second shaft heads 131 are inserted into the fixing seat 1 and are rotatably connected with each other.

In order to realize that the folding seat 2 is folded, in this embodiment, the front end of the fixing seat 1 is provided with a fixing shaft sleeve 15, the front end of the folding seat 2 is provided with two rotating shaft sleeves 21, the fixing shaft sleeve 15 is clamped between the two rotating shaft sleeves 21, and the rotating shaft sleeves 21 are rotatably connected with the fixing shaft sleeves 15.

As a preferable mode, the present embodiment includes a supporting plate 3, two ends of the supporting plate 3 are respectively formed with a collar 30, the collars 30 are perpendicular to the supporting plate 3, two collars 30 are respectively disposed at two ends of the fixed shaft sleeve 15, the collars 30 are sandwiched between the fixed shaft sleeve 15 and the rotating shaft sleeve 21, and the collars 30 can rotate relative to the fixed shaft sleeve 15.

The supporting plate 3 has the advantages that when the folding seat 2 is folded to a preset angle and is in an inclined state, the supporting plate 3 can be turned outwards, so that the mobile phone is supported by the supporting plate 3 at the lower end, and through the matching of the supporting plate 3 and the folding seat 2, the mobile phone can be supported while the mobile phone is wirelessly charged, and a user can watch a mobile phone screen conveniently.

In order to fold the supporting plate 3 and the folding seat 2, in this embodiment, the top surface of the folding seat 2 is provided with a supporting plate accommodating groove 22 for being clamped into the supporting plate 3.

Regarding the specific composition of the folding seat 2, in this embodiment, an upper frame 23 is fixed on the folding seat 2, an air avoiding opening 230 is formed on the upper frame 23, the air avoiding opening 230 is aligned with the wireless charging module 20, a panel 24 is fixed on the top of the upper frame 23, and the panel 24 covers the air avoiding opening 230. Further, the panel 24 may be a slip resistant panel.

In order to facilitate opening the first clamping seat 12, in this embodiment, a first wrench portion 122 is formed at an end of the first clamping seat 12 away from the first spindle head 121.

Similarly, a second wrench portion 132 is formed at an end of the second clamping seat 13 away from the second shaft 131.

In order to facilitate the operation of the user, in this embodiment, a recess 16 is formed in the fixing base 1, the recess 16 is communicated between the first receiving groove 10 and the second receiving groove 11, when the first clamping seat 12 is clamped into the first receiving groove 10 and the second clamping seat 13 is clamped into the second receiving groove 11, the first wrench portion 122 and the second wrench portion 132 are both located in the recess 16, and the first wrench portion 122 and the second wrench portion 132 are disposed oppositely.

Example four

In this embodiment, as shown in fig. 4 and fig. 7 to fig. 10, two ends of the fixed shaft sleeve 15 are respectively provided with a damping hinge shaft 4 in a clamped manner, one of the two damping hinge shafts 4 is connected with the lantern ring 30 in a clamped manner, the other of the two damping hinge shafts 4 is connected with the rotating shaft sleeve 21 in a clamped manner, and the folding seat 2 and the supporting plate 3 are turned and positioned at a preset angle position by the damping rotation action of the damping hinge shafts 4.

In order to realize the above-mentioned turning and positioning functions, the present embodiment provides a damping hinge shaft with simple structure, easy implementation, and rotation and positioning functions, as shown in fig. 4 and fig. 7 to fig. 10, the damping hinge shaft 4 includes a first shaft seat 40 and a first shaft body 41, a first damping surface 400 is formed on an end surface of the first shaft seat 40, a second damping surface 410 is formed on an end surface of the first shaft body 41, the first damping surface 400 and the second damping surface 410 are oppositely disposed and closely matched, the first shaft seat 40 is used for being engaged with a preset rotating shaft sleeve 21, the first shaft body 41 is used for being engaged with a preset fixed shaft sleeve 15, a first spring 42 is disposed at an end of the first shaft body 41 facing away from the second damping surface 410, one end of the first spring 42 is abutted against the first shaft body 41, and the other end of the first spring 42 is abutted against the preset fixed shaft sleeve 15, the first damping surface 400 and the second damping surface 410 are pressed against each other by the elastic force exerted by the first spring 42.

In the above structure, the first shaft seat 40 and the first shaft body 41 are respectively used for connecting the preset rotating shaft sleeve 21 and the fixed shaft sleeve 15, under the action of the elastic pressure exerted by the first spring 42, the first damping surface 400 is closely matched with the second damping surface 410, when the rotating shaft sleeve 21 rotates relative to the fixed shaft sleeve 15, the resistance between the first damping surface 400 and the second damping surface 410 needs to be overcome to realize rotation, and after the rotating shaft sleeve 21 rotates relative to the fixed shaft sleeve 15 by a preset angle, the rotating shaft sleeve 21 is positioned at the angle position by the resistance between the first damping surface 400 and the second damping surface 410.

Preferably, the first damping surface 400 is formed with a first ring gear, and the second damping surface 410 is formed with a second ring gear, which are engaged with each other.

Further, the teeth of the first tooth ring and the teeth of the second tooth ring are isosceles triangle teeth.

But is not limited to this in practical application, and the first damping surface 400 and the second damping surface 410 may be a rough friction plane as an alternative.

In order to realize the snap fit, in this embodiment, two first protrusions 401 are formed on the outer side of the first shaft seat 40, the two first protrusions 401 are symmetrically disposed on two sides of the first shaft seat 40, and the first protrusions 401 are used for being engaged with a preset rotating shaft sleeve 21.

Correspondingly, two second protruding blocks 411 are formed on the outer side of the first shaft body 41, the two second protruding blocks 411 are symmetrically arranged on two sides of the first shaft body 41, and the second protruding blocks 411 are used for being connected with a preset fixed shaft sleeve 15 in a clamping manner.

In order to facilitate the first spring 42 to stably apply an elastic pressure to the first shaft 41, in this embodiment, a first central shaft 412 is formed at an end of the first shaft 41 facing away from the second damping surface 410, and the first spring 42 is sleeved on the first central shaft 412.

Based on the above structure, the embodiment further relates to a folding device, as shown in fig. 4 and fig. 7 to fig. 10, which includes a fixed seat 1, a folding seat 2, and a damping hinge shaft 4, wherein a fixed shaft sleeve 15 is formed at the front end of the fixed seat 1, two rotating shaft sleeves 21 are formed at the front end of the folding seat 2, the damping hinge shaft 4 includes a first shaft seat 40 and a first shaft body 41, a first damping surface 400 is formed at the end surface of the first shaft seat 40, a second damping surface 410 is formed at the end surface of the first shaft body 41, the first damping surface 400 and the second damping surface 410 are oppositely disposed and are tightly matched, the first shaft seat 40 is used for being fastened and connected with the rotating shaft sleeve 21, the first shaft body 41 is used for being fastened and connected with the fixed shaft sleeve 15, and a first spring 42 is disposed at an end of the first shaft body 41 opposite to the second damping surface 410, one end of the first spring 42 abuts against the first shaft 41, the other end of the first spring 42 abuts against the fixed shaft sleeve 15, and the first damping surface 400 and the second damping surface 410 abut against each other by means of the elastic force exerted by the first spring 42.

When the present embodiment is combined with a multifunctional charging stand, as an application example, a spring seat 150 is formed in the fixing sleeve 15, and an end of the first spring 42 is clamped in the spring seat 150. The spring seat 150 includes two blocking edges 151, the two second protrusions 411 respectively abut against the two blocking edges 151, and the two second protrusions 411 are abutted and limited by the two blocking edges 151, so as to realize a snap connection.

Correspondingly, the first shaft seat 40 is inserted into the rotating shaft sleeve 21, two shaft sleeve inner clamping grooves 210 are formed in the inner side of the rotating shaft sleeve 21, the two shaft sleeve inner clamping grooves 210 are respectively aligned with the two first convex blocks 401, and the shaft sleeve inner clamping grooves 210 are used for being in clamping fit with the first convex blocks 401 to further achieve clamping connection. The above structure enables the rotation sleeve 21 and the fixed sleeve 15 to realize a damped rotation hinge connection.

Similarly, two lantern ring inner clamping grooves 300 are formed in the lantern ring 30, the two lantern ring inner clamping grooves 300 are respectively aligned with the two first protruding blocks 401, and the lantern ring inner clamping grooves 300 are used for being in clamping fit with the first protruding blocks 401 to achieve clamping connection. The above structure can make the supporting plate 3 and the fixed shaft sleeve 15 realize the damping rotation hinge connection.

Based on the above structure characteristics, the lantern ring 30 can be hinged to the fixed shaft sleeve 15 through one damping hinge shaft 4, and the rotating shaft sleeve 21 can be hinged to the fixed shaft sleeve 15 through another damping hinge shaft 4, so that the supporting plate 3 and the folding seat 2 can be freely turned and positioned respectively through the matching relationship, and the turning positions of the supporting plate 3 and the folding seat 2 can be conveniently adjusted.

The above is only the embodiment of the present invention, and is not intended to limit the present invention, and all modifications, equivalent replacements or improvements made within the technical scope of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. A stable damping articulated shaft is characterized by comprising a third shaft seat, a third shaft body, a fourth shaft body, a clamping ring and a third spring, wherein the third shaft seat is barrel-shaped, the third shaft body and the fourth shaft body are both arranged in the third shaft seat, the rear end of the fourth shaft body penetrates through the bottom of the third shaft seat, the fourth shaft body can only slide back and forth relative to the third shaft seat, a fourth damping surface is formed at the front end of the fourth shaft body, a fifth damping surface is formed at the rear end surface of the third shaft body, the fourth damping surface and the fifth damping surface are oppositely arranged, the clamping ring is fixedly connected to an opening of the third shaft seat, the front end of the third shaft body penetrates through the clamping ring, the front end of the third shaft body is used for being connected with a preset fixed shaft sleeve, and the rear end of the third shaft seat is used for being connected with a preset rotating shaft sleeve, the third spring is sleeved on the fourth shaft body, two ends of the third spring are respectively abutted against the fourth shaft body and the third shaft seat, and the fourth damping surface and the fifth damping surface are abutted tightly by means of elastic force applied by the third spring.

2. The firm damping hinge shaft of claim 1, wherein the fourth damping surface is formed with a fourth ring gear, and the fifth damping surface is formed with a fifth ring gear, and the fourth ring gear and the fifth ring gear are engaged with each other.

3. The firm damping hinge shaft of claim 2, wherein the teeth of said fourth tooth ring and the teeth of said fifth tooth ring are isosceles triangle teeth.

4. The firm damping hinge shaft of claim 1, wherein a rear lug is formed at a rear end of the third shaft seat, and the rear lug is fixedly coupled to a predetermined rotation shaft sleeve.

5. The firm damping hinge shaft of claim 1, wherein a front lug is formed at a front end of the third shaft body, the front lug penetrates through the snap ring and extends outward, and the front lug is fixedly connected with a predetermined fixing bushing.

6. The firm damping hinge shaft of claim 1, wherein two shaft seat side holes are formed in a side wall of the third shaft seat, the two shaft seat side holes are symmetrically formed in two sides of the third shaft seat, two side protrusions are formed at an edge of the snap ring, the side protrusions are aligned with the shaft seat side holes one by one, and the side protrusions are clamped in the shaft seat side holes.

7. The firm damping hinge shaft of claim 6, wherein the side protrusions are wedge-shaped protrusions.

8. The firm damping hinge shaft of claim 6, wherein two fastening grooves are formed at an edge of the opening of the third shaft seat, the two fastening grooves are symmetrically formed at both sides of the third shaft seat, two fastening blocks are formed at an edge of the fastening ring, the fastening blocks are aligned with the fastening grooves one by one, and the fastening blocks are fastened in the fastening grooves.

9. The firm damping hinge shaft of claim 4, wherein the rear brace is close to the rear edge of the third shaft seat, an avoiding groove is formed at the inner side of the rear brace, the avoiding groove is aligned with the fourth shaft body, and the fourth shaft body can slide back and forth in the avoiding groove.

10. The firm damping hinge shaft according to claim 1, wherein two limiting sliding blocks are formed at a side portion of the fourth shaft body, the two limiting sliding blocks are symmetrically disposed at two sides of the fourth shaft body, two limiting sliding grooves are formed at a bottom portion of the third shaft seat, the limiting sliding grooves are aligned with the limiting sliding blocks one by one, and the limiting sliding blocks are inserted into the limiting sliding grooves and are in sliding fit with the limiting sliding grooves.

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