CN210807378U

CN210807378U - Self-align linkage clamping mechanism of span of cell phone stand

Info

Publication number: CN210807378U
Application number: CN202020205812.0U
Authority: CN
Inventors: 朱长仙
Original assignee: Shenzhen Zhigaoxiang Technology Development Co ltd
Current assignee: Shenzhen Zhigaoxiang Technology Development Co ltd
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2020-06-19
Anticipated expiration: 2030-02-24

Abstract

The utility model discloses a self-align linkage clamping mechanism of cell phone stand's span, it is including two horizontal arm lock and a support frame, horizontal arm lock is including horizontal slider, horizontal slider and support frame sliding connection, wear to be equipped with the linkage gear on the support frame, the tip of horizontal slider is formed with horizontal spur rack, the both sides of linkage gear are located to two horizontal spur rack branches, two horizontal spur rack are parallel to each other and the two all meshes with the linkage gear mutually, the bottom of linkage gear is formed with circular seat, circular seat is located the below of support frame, the edge of circular seat is formed with first joint portion, the bottom of support frame is formed with second joint portion, one of first joint portion and second joint portion is along the wave joint portion of circular extension, and first joint portion and second joint portion elasticity block. The utility model discloses can be with the mode of self-align with two horizontal arm lock restrictions in corresponding span position to make things convenient for in user's clamping cell-phone.

Description

Self-align linkage clamping mechanism of span of cell phone stand

Technical Field

The utility model relates to a cell phone stand especially relates to a self-align linkage clamping mechanism of cell phone stand's span.

Background

The mobile phone support is a common device which is arranged on a desktop or a center console of an automobile and the like and is used for placing and clamping a mobile phone. In practical application, some mobile phone supports are pulled by springs between two transverse clamping arms, the two transverse clamping arms are driven by the elastic force applied by the springs to clamp the mobile phone, when the mobile phone is clamped, the two transverse clamping arms need to be manually opened, then the mobile phone is loaded between the two transverse clamping arms, but in the process of opening the two transverse clamping arms, the elastic force of the springs needs to be overcome, and in the process of loading the mobile phone, the process of loading the mobile phone is relatively laborious due to the existence of elastic traction force, and the user experience is poor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to prior art's not enough, provide a self-align linkage clamping mechanism of cell phone stand's span, this mechanism can be with two horizontal arm lock restrictions in corresponding span position from the mode of locating to make things convenient for in user's clamping cell-phone.

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

A span self-positioning linkage clamping mechanism of a mobile phone support comprises two transverse clamping arms and a support frame, the transverse clamping arm comprises a transverse sliding block which is connected with the supporting frame in a sliding way, a linkage gear penetrates through the support frame, a transverse straight rack is formed at the end part of the transverse sliding block, two transverse straight racks are respectively arranged at two sides of the linkage gear, the two transverse straight racks are parallel to each other and are both meshed with the linkage gear, a circular seat is formed at the bottom of the linkage gear and is positioned below the supporting frame, a first clamping part is formed at the edge of the round seat, a second clamping part is formed at the bottom of the supporting frame, one of the first clamping portion and the second clamping portion is a wave-shaped clamping portion extending along a circle, and the first clamping portion is elastically clamped with the second clamping portion; when push-pull force is applied to the transverse clamping arms, the linkage gear drives the two transverse straight racks to be synchronously far away or close to each other, and the two transverse clamping arms are positioned at corresponding positions under the elastic clamping action of the first clamping portion and the second clamping portion.

Preferably, the circular seat is annular, the circular seat surrounds the linkage gear and a gap is formed between the circular seat and the linkage gear, and the circular seat is connected with the linkage gear through at least two connecting parts.

Preferably, the circular seat, the connecting portion and the link gear are integrally formed.

Preferably, the second joint portion is including annular seat, the inside wall of annular seat is formed with along the interior ripple portion of circular extension, first joint portion is semi-circular lug, just first joint portion with interior ripple portion block each other.

Preferably, two first clamping parts which are symmetrically arranged are formed at the edge of the circular seat.

Preferably, first joint portion is along the circular wave joint portion that extends, second joint portion is including the fixed block, the fixed block with circular seat is adjacent to be set up, the inboard of fixed block is formed with first bulge, first bulge with the mutual block of first joint portion.

Preferably, circular seat is the disc, circular seat with the linkage gear concentric circles sets up and the two integrated into one piece, first joint portion is along the circular wave joint portion that extends, second joint portion is including elasticity piece, the elasticity piece with circular seat is adjacent to be set up, the inboard of elasticity piece is formed with the second bulge, the second bulge with the mutual block of first joint portion.

Preferably, a tension spring is connected between one of the two transverse clamping arms and the support frame, and the tension spring is used for applying tension to the transverse clamping arm to retract into the support frame.

Preferably, a first hook is formed on the support frame, a second hook is formed on one of the two sliding rods, and the tension spring is connected between the first hook and the second hook.

Preferably, the lifting device comprises a longitudinal supporting arm, the longitudinal supporting arm comprises a longitudinal sliding block, the longitudinal sliding block is connected with the supporting frame in a sliding mode, a longitudinal straight rack is formed at the end portion of the longitudinal sliding block, the longitudinal straight rack extends to the side portion of the linkage gear, and the longitudinal straight rack and the linkage gear are meshed with each other.

In the span self-positioning linkage clamping mechanism of the mobile phone bracket, under the linkage action of the linkage gear, two transverse clamping arms can be driven to be synchronously far away or close to each other so as to execute the opening and clamping actions, on the basis, the embodiment is characterized in that the bottom of the linkage gear is provided with the round seat, the edge of the round seat is provided with the first clamping part, correspondingly, the bottom of the supporting frame is provided with the second clamping part, the first clamping part is elastically clamped with the second clamping part, when the two transverse straight racks are driven to move relatively by external force, the torsion borne by the linkage gear overcomes the clamping force between the first clamping part and the second clamping part, so that the linkage gear rotates relative to the supporting frame until the two transverse clamping arms reach preset positions, at the moment, under the clamping action of the first clamping part and the second clamping part, the linkage gear is positioned, so that the two transverse clamping arms are limited at corresponding positions. In the use process, a user only needs to drive the two transverse clamping arms to open or clamp the mobile phone through external force, and the two transverse clamping arms are kept in corresponding states after being opened and clamped.

Drawings

FIG. 1 is a perspective view of a handset cradle holding a handset;

FIG. 2 is a perspective view of a handset support;

FIG. 3 is a side view of a cell phone stand;

FIG. 4 is an exploded view of the internal structure of the housing;

FIG. 5 is a first perspective view of the internal structure of the housing;

FIG. 6 is a first exploded view of the internal structure of the housing;

FIG. 7 is a second perspective view of the internal structure of the housing;

FIG. 8 is a second exploded view of the internal structure of the housing;

FIG. 9 is a first structural view of the supporting frame and the linkage gear;

FIG. 10 is a second view of the structure of the supporting frame and the linkage gear;

FIG. 11 is a view showing a first alternative of the supporting frame and the linking gear;

FIG. 12 is a structural view of a second alternative of the supporting frame and the linkage gear;

FIG. 13 is a perspective view of the torque clamping mechanism;

FIG. 14 is a view showing the structure of the lateral slider and the swing base;

FIG. 15 is a first exploded view of the torque clamp mechanism;

FIG. 16 is a second exploded view of the torque clamp mechanism;

FIG. 17 is an exploded view of the clamping mechanism;

FIG. 18 is a cross-sectional view of the clamping mechanism;

FIG. 19 is a view showing the structure of the carrier block and the pressure ring;

fig. 20 is a partially exploded view of a handset support according to a fourth embodiment of the present invention.

Detailed Description

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

Example one

This embodiment provides a self-align linkage clamping mechanism of cell phone stand's span, combine fig. 5 to fig. 10 to show, it includes two horizontal arm lock 2 and a support frame 4, horizontal arm lock 2 is including horizontal slider 20, horizontal slider 20 with support frame 4 sliding connection, wear to be equipped with linkage gear 5 on the support frame 4, the tip of horizontal slider 20 is formed with horizontal spur rack 21, two horizontal spur rack 21 branch are located linkage gear 5's both sides, two horizontal spur rack 21 are parallel to each other and the two all with linkage gear 5 meshes mutually, linkage gear 5's bottom is formed with circular seat 50, circular seat 50 is located support frame 4's below, circular seat 50's edge is formed with first joint portion 51, support frame 4's bottom is formed with second joint portion 42, first joint portion 51 with one of second joint portion 42 is along the wave joint portion of circular extension, the first clamping portion 51 is elastically clamped with the second clamping portion 42;

when a push-pull force is applied to the transverse clamping arms 2, the linkage gear 5 drives the two transverse straight racks 21 to be synchronously far away or close to each other, and the two transverse clamping arms 2 are positioned at corresponding positions by means of the elastic clamping action of the first clamping portion 51 and the second clamping portion 42.

In the above-mentioned mechanism, under the linkage action of the linkage gear 5, the two transverse clamping arms 2 can be driven to be synchronously away from or close to each other, so as to perform the opening and clamping actions, on this basis, in this embodiment, the circular base 50 is disposed at the bottom of the linkage gear 5, the first clamping portion 51 is disposed at the edge of the circular base 50, correspondingly, the second clamping portion 42 is disposed at the bottom of the support frame 4, and the first clamping portion 51 is elastically clamped with the second clamping portion 42, when an external force drives the two transverse spur racks 21 to move relatively, the torque force borne by the linkage gear 5 overcomes the clamping force between the first clamping portion 51 and the second clamping portion 42, so that the linkage gear 5 rotates relative to the support frame 4 until the two transverse clamping arms 2 reach the preset position, at this time, under the clamping action of the first clamping portion 51 and the second clamping portion 42, the linkage gear 5 is positioned, so that the two transverse clamping arms 2 are limited at corresponding positions. In the use process, a user only needs to drive the two transverse clamping arms 2 to open or clamp the mobile phone through external force, and the mobile phone is kept in a corresponding state after the two transverse clamping arms are opened and clamped.

In this embodiment, the circular seat 50 is circular, the circular seat 50 surrounds the linkage gear 5, a gap 500 is formed between the circular seat 50 and the linkage gear 5, and the circular seat 50 and the linkage gear 5 are connected through at least two connecting portions 501.

Further, the circular seat 50, the connecting portion 501 and the interlocking gear 5 are integrally formed.

In the above structure, the circular seat 50 is in a circular ring structure, so that a gap 500 is formed between the circular seat 50 and the linkage gear 5, and meanwhile, the circular seat 50 has certain elasticity, and the first clamping portion 51 is arranged at the edge of the circular seat 50, so that the first clamping portion 51 and the second clamping portion 42 can be elastically clamped, when the linkage gear 5 bears the torque force applied by the transverse clamping arm 2, only when the torque force overcomes the elastic clamping force, the first clamping portion 51 slides relative to the second clamping portion 42, and after the linkage gear 5 rotates, the linkage gear 5 is limited again, and based on the above structure, the linkage fit of span self-positioning is skillfully realized.

For make first joint portion 51 with second joint portion 42 matches each other better, in this embodiment, second joint portion 42 is including annular seat 420, the inside wall of annular seat 420 is formed with along the interior ripple portion 421 of circular extension, first joint portion 51 is semi-circular lug, just first joint portion 51 with interior ripple portion 421 mutual block.

Further, two first clamping portions 51 are formed at the edge of the circular seat 50, and are symmetrically arranged.

However, the above structure is only a preferred implementation, and in the practical application, the following two alternatives can be also referred to:

in a first alternative, please refer to fig. 11, the circular seat 50 is circular, the circular seat 50 surrounds the linkage gear 5 and a gap 500 is formed therebetween, and the circular seat 50 and the linkage gear 5 are connected by at least two connecting portions 501;

further, first joint portion 51 is along the wave joint portion of circular extension, second joint portion 42 is including fixed block 422, fixed block 422 with circular seat 50 is adjacent to be set up, the inboard of fixed block 422 is formed with first bulge 423, first bulge 423 with first joint portion 51 is block each other.

In this alternative, the circular base 50 is also configured to have an elastic circular ring shape, the edge of the circular base 50 is uniformly distributed with the first wavy clamping portions 51, correspondingly, the bottom of the support frame 4 is provided with 4 fixing blocks 422, the inner side of each fixing block 422 is provided with the first protruding portion 423, and the first protruding portion 423 is elastically clamped with the first clamping portions 51.

A second alternative, please refer to fig. 12, wherein the circular base 50 is disc-shaped, the circular base 50 and the linkage gear 5 are concentrically arranged and integrally formed, the first clamping portion 51 is a wave-shaped clamping portion extending along a circle, the second clamping portion 42 includes an elastic block 424, the elastic block 424 is adjacent to the circular base 50, a second protruding portion 425 is formed on an inner side of the elastic block 424, and the second protruding portion 425 and the first clamping portion 51 are mutually clamped.

In this alternative, uniformly distributed wave-shaped first clamping portions 51 are arranged at the edge of the

circular seat

50, 4 elastic blocks 424 with elasticity are arranged at the bottom of the support frame 4, and a second protruding portion 425 is arranged at the inner side of each elastic block 424, so that the second protruding portion 425 is elastically clamped with the first clamping portions 51 due to the elasticity of the elastic blocks 424.

Above-mentioned 3 the mode all can realize the span from the positioning linkage function, but this embodiment is not limited to this in practical application, and other implementation manners that have equivalent function among the prior art promptly all belong to the utility model discloses a protection scope.

In order to provide auxiliary traction force for the two transverse arms 2, in this embodiment, a tension spring 40 is connected between one of the two transverse clamping arms 2 and the support frame 4, and the tension spring 40 is used for applying a pulling force for retracting the transverse clamping arm 2 into the support frame 4.

In practical application, the pulling force of extension spring 40 is in order not to overcome first joint portion 51 with block power between the second joint portion 42 is good, extension spring 40 is used for making and keeps there being traction force between two horizontal support arms 2, when the manual centre gripping cell-phone 100 of user between two horizontal support arms 2, because there is the allowance of activity of small amplitude between linkage gear 5 and two horizontal support arms 2, can drive two horizontal support arms 2 with the help of the elasticity that extension spring 40 applyed this moment and keep pressing from both sides the state of pressing from both sides tight cell-phone 100 to inseparabler, the centre gripping cell-phone steadily.

In order to facilitate the installation of the tension spring 40, in this embodiment, a first hook 41 is formed on the support frame 4, a second hook 220 is formed on one of the two slide bars 22, and the tension spring 40 is connected between the first hook 41 and the second hook 220.

In practical application, the present embodiment further includes a longitudinal bracket arm 3, the longitudinal bracket arm 3 includes a longitudinal sliding block 30, the longitudinal sliding block 30 is slidably connected to the supporting frame 4, a longitudinal spur rack 31 is formed at an end portion of the longitudinal sliding block 30, the longitudinal spur rack 31 extends to a side portion of the linkage gear 5, and the longitudinal spur rack 31 and the linkage gear are engaged with each other.

Example two

The embodiment provides a gear type multi-axis linkage vehicle-mounted mobile phone support with a wireless charging function, which is shown in fig. 1 to 8 and comprises a housing 1, two transverse clamping arms 2 and a longitudinal supporting arm 3, wherein a supporting frame 4 is fixed in the housing 1, a wireless charging module 7 is arranged above the supporting frame 4, a face shell 8 is fixed at the top of the housing 1, the face shell 8 covers the wireless charging module 7, the two transverse clamping arms 2 and the longitudinal supporting arm 3 are distributed in a 'product' shape, the transverse clamping arms 2 comprise transverse sliding blocks 20, the two transverse sliding blocks 20 are respectively inserted into the housing 1 from two sides, the longitudinal supporting arm 3 comprises a longitudinal sliding block 30, the longitudinal sliding block 30 is inserted into the housing 1 from a side part, and the transverse sliding blocks 20 and the longitudinal sliding block 30 are both connected with the supporting frame 4 in a sliding manner, a linkage gear 5 penetrates through the support frame 4, a transverse spur rack 21 is formed at the end part of the transverse sliding block 20, the two transverse spur racks 21 are respectively arranged at two sides of the linkage gear 5, the two transverse spur racks 21 are parallel to each other and are both meshed with the linkage gear 5, a longitudinal spur rack 31 is formed at the end part of the longitudinal sliding block 30, and the longitudinal spur rack 31 extends to the side part of the linkage gear 5 and is meshed with the linkage gear 5;

one of two horizontal arm lock 2 with be connected with an extension spring 40 between the support frame 4, extension spring 40 is used for to horizontal arm lock 2 apply to the pull force of indentation in the support frame 4, linkage gear 5 is used for driving two horizontal arm lock 2 with vertical trailing arm 3 folds in step.

In the structure, through the linkage cooperation of the linkage gear 5, the two transverse clamping arms 2 and the longitudinal supporting arm 3 can synchronously execute opening or closing actions, and then the mobile phone 100 can be aligned and clamped at the middle position of the mobile phone support by means of the tension applied by the tension spring 40, so that the mobile phone support and a wireless charging module of the mobile phone are further aligned, the reliability and the stability of clamping the mobile phone are greatly improved, and the wireless charging efficiency is effectively improved.

In order to ensure that the transverse clamping arm 2 slides stably, in this embodiment, a sliding rod 22 is formed at an end of the transverse sliding block 20, two sliding rods 22 are respectively disposed at two sides of the linkage gear 5, and both sliding rods 22 are slidably connected with the supporting frame 4.

In order to reliably connect the tension spring 40 between the support frame 4 and one of the lateral sliders 20, in the embodiment, a first hook 41 is formed on the support frame 4, a second hook 220 is formed on one of the two sliding rods 22, and the tension spring 40 is connected between the first hook 41 and the second hook 220.

As a preferable mode, the longitudinal bracket arm 3 includes a bracket 32, and the bracket 32 and the longitudinal slider 30 are integrally formed and are arranged in an "L" shape.

In order to support and limit the mobile phone 100, in this embodiment, a card slot 320 for supporting the mobile phone 100 is formed on the inner side of the supporting block 32.

The handset support in this embodiment may be clamped at an air outlet grid of an automobile, as shown in fig. 1, fig. 2, fig. 3, fig. 17, fig. 18 and fig. 19, a clamping mechanism 6 is disposed at the bottom of the housing 1, the clamping mechanism 6 includes a screw 60, a bearing block 61, two jaws 62 and a lock nut 63, support frames 610 are respectively formed at two sides of the bearing block 61, the screw 60 passes through the bearing block 61, a horizontal shaft 64 passes through a lower end of the screw 60, two hinge portions 620 are formed at an inner side of an upper end of the jaws 62, two ends of the horizontal shaft 64 respectively pass through the hinge portions 620 of the two jaws 62, an inclined surface 621 is formed at a top of the jaws 62, the inclined surface 621 gradually inclines downward from an outer side to an inner side of the jaws 62, the inclined surface 621 is aligned with the bottom of the bearing block 61, the lock nut 63 is located above the bearing block 61, the locking nut 63 is sleeved on the screw rod 60 and is screwed with the screw rod 60;

the upper end surface of the bearing block 61 is provided with upper teeth 611 distributed annularly, the screw 60 is sleeved with a pressing ring 65, the pressing ring 65 is positioned between the locking nut 63 and the bearing block 61, the lower end surface of the pressing ring 65 is provided with lower teeth 650 distributed annularly, and the upper teeth 611 and the lower teeth 650 are aligned with each other;

when the locking nut 63 is screwed upwards, the locking nut 63 is separated from the pressing ring 65, and the supporting position of the supporting frame 610 is adjusted by rotating the bearing block 61;

when the locking nut 63 is screwed downwards, the locking nut 63 applies pressure to the pressing ring 65 and the bearing block 61, the upper teeth 611 and the lower teeth 650 are clamped with each other, and the two clamping jaws 62 are driven to perform clamping action by the matching of the bearing block 61 and the inclined surface 621.

In the structure, when the mobile phone support is clamped, the locking nut 63 is firstly unscrewed upwards, and the bearing block 61 can flexibly rotate at the moment, so that the two clamping jaws 62 can be firstly aligned to the grid of the air outlet, then the support frame 610 is rotated to a proper position outside the air outlet, then the locking nut 63 is screwed downwards, and the grid is clamped by the two clamping jaws 62 through the thrust applied to the two clamping jaws 62 by the bearing block 61. Compared with the prior art, the clamping mechanism can flexibly adjust the position of the support frame according to the shape of the air outlet, so that various types of air outlet grids are matched, and the requirements of users and the market demand are well met.

Furthermore, an accommodating notch 612 is formed in the top of the bearing block 61, the upper teeth 611 are located at the bottom of the accommodating notch 612, the pressing ring 65 is arranged in the accommodating notch 612, the accommodating notch 612 is a circular notch, and the pressing ring 65 is a circular pressing ring.

In this embodiment, an elastic member 66 for driving the two clamping jaws 62 to open is clamped between the two clamping jaws 62, and the elastic member 66 is a torsion spring sleeved on the transverse shaft 64.

Further, a soft rubber pad 622 is embedded inside the clamping jaw 62.

In order to facilitate screwing the locking nut 63, in this embodiment, a plurality of outward protruding toggle portions 630 are formed on a side portion of the locking nut 63, a tangent plane 600 is formed on a side portion of the screw 60, a limiting portion 651 is formed on an inner side of the pressing ring 65, and the limiting portion 651 and the tangent plane 600 are abutted to each other.

EXAMPLE III

In practical application, the transverse support arms on two sides of the mobile phone support are generally arranged in an L shape, the mobile phone can be clamped between the two transverse support arms by matching the two opposite transverse support arms with a mechanism of a traction spring, but in the clamping mode, the force is applied to the transverse support arms only in the mobile phone support, and only the contact position between the transverse support arms and the mobile phone has a tight abutting function, so that the mobile phone is difficult to be firmly clamped, the clamping effect is not ideal, the reliability is not good, in addition, when a user assembles and disassembles the mobile phone, the mobile phone can be installed after the two transverse support arms are opened, the action process is complex, and the internal mechanism is easy to wear during multiple clamping, so that the service life of the mobile phone support is reduced, and the requirements of the user and the market are difficult to meet.

In view of the above, the present embodiment provides a torque clamping mechanism for a handset support, which provides a clamping force to a side portion of a handset from an end position of the transverse support arm 2 under a torque action, so as to better clamp the handset between the two transverse support arms 2, and helps reduce internal wear of the handset support, thereby improving a service life, as shown in fig. 13 to 16, the handset support includes two transverse support arms 2 disposed opposite to each other, the transverse support arm 2 includes a transverse sliding block 20, a swing seat 23 is disposed on the transverse sliding block 20, the swing seat 23 and the transverse sliding block 20 are disposed in an "L" shape, the swing seat 23 can rotate a preset angle relative to the transverse sliding block 20, a stop column 24 is disposed on the swing seat 23, the stop column 24 is close to an edge of the swing seat 23, a torque mechanism is disposed between the transverse sliding block 20 and the swing seat 23, the torsion mechanism is used for driving the swing seats 23 to rotate, so that the stop posts 24 on the two swing seats 23 approach each other and clamp the mobile phone 100.

In the above mechanism, the swing seat 23 capable of rotating at a certain angle is arranged on the transverse sliding block 20, and meanwhile, the upright retaining post 24 is arranged on the swing seat 23, when the mobile phone is clamped between the two swing seats 23, the swing seat 23 rotates through the torque force provided by the torque mechanism, and then the retaining post 24 is driven to abut against the mobile phone 100.

In order to further limit the mobile phone 100, in this embodiment, a limiting groove 240 for clamping the edge of the mobile phone 100 is formed in the middle of the stopping column 24.

Preferably, two abutment posts 24 are disposed on the swing seat 23, and the two abutment posts 24 are respectively close to two side edges of the swing seat 23.

In this embodiment, the bottom of the swing seat 23 is elongated.

Further, two upright posts 230 are fixed on the swing seat 23, two blocking posts 24 are respectively sleeved on the two upright posts 230, and the blocking posts 24 are rotatably connected with the upright posts 230. With the above structure, the stopping column 24 is in a roller-shaped structure, so as to better cooperate with the mobile phone 100.

In order to further improve the stress strength, in this embodiment, a reinforcing portion 231 is formed on the swing seat 23, the reinforcing portion 231 is located between the two upright posts 230, a cover plate 232 is fixed on the top of the reinforcing portion 231, and the cover plate 232 covers the tops of the two abutment posts 24.

In order to realize the rotation fit between the swing seat 23 and the horizontal sliding block 20, in this embodiment, a shaft sleeve 25 is formed on the horizontal sliding block 20, a rotating shaft 233 is formed at the bottom of the swing seat 23, the rotating shaft 233 is inserted into the shaft sleeve 25 and is rotatably connected with the shaft sleeve 25, the torsion mechanism includes a torsion spring 250, the torsion spring 250 is sleeved on the shaft sleeve 25, and two ends of the torsion spring 250 are respectively connected to the horizontal sliding block 20 and the swing seat 23.

Further, the two swing seats 23 are preferably distributed in a "V" shape, and when the swing seats 23 bear torsion, the lower ends of the two swing seats 23 can be close to each other, so as to better limit the mobile phone 100 in the limiting groove 240. When a user takes off the mobile phone, the user only needs to pull the mobile phone 100 upwards, the lower ends of the two swing seats 23 are further close under the action of the torsion force, when the user loads the mobile phone again, the user only needs to insert the mobile phone 100 downwards between the stop posts 24 on the two swing seats 23 after overcoming the torsion force, and then the stop posts 24 on the two swing seats 23 are driven to clamp the mobile phone 100 again by means of the torsion force. Based on the principle, the mobile phone 100 can be quickly taken and placed, internal abrasion of the mobile phone support can be reduced, user operation and use are facilitated, and user needs and market demands are well met.

In order to enable the swing seat 23 and the horizontal sliding block 20 to be assembled more closely and hide the torsion spring 250, in this embodiment, a lower avoidance groove 251 is formed on the horizontal sliding block 20, the lower avoidance groove 251 surrounds the shaft sleeve 25, an upper avoidance groove 234 is formed at the bottom of the swing seat 23, the upper avoidance groove 234 surrounds the rotating shaft 233, the upper avoidance groove 234 is aligned with the lower avoidance groove 251, and the torsion spring 250 is accommodated between the upper avoidance groove 234 and the lower avoidance groove 251.

In order to limit the rotation angle of the swing seat 23 and further realize the swing motion, in this embodiment, a limiting column 26 is formed on the transverse sliding block 20, an arc-shaped limiting groove 235 is formed at the bottom of the swing seat 23, the limiting groove 235 and the rotating shaft 233 are concentrically arranged, and the limiting column 26 is inserted into the limiting groove 235 and is in sliding fit with the limiting groove 235.

Regarding the assembly manner of the swing seat 23 and the lateral sliding block 20, in this embodiment, a screw 27 is disposed at the bottom of the lateral sliding block 20, and the screw 27 passes through the shaft sleeve 25 and is screwed to the rotating shaft 233.

Example four

In this embodiment, referring to fig. 20, the mobile phone support includes two transverse support arms 2 disposed oppositely, a swing seat 23 is disposed on the

transverse support arm

2, 1 blocking pillar 24 is disposed on the swing seat 23, and the blocking pillar 24 is close to an edge of the swing seat 23;

in order to realize the swing seat 23 with the horizontal support arm 2 normal running fit, in this embodiment, be formed with axle sleeve 25 on the horizontal support arm 2, the bottom of swing seat 23 is formed with pivot 233, pivot 233 inserts and locates in the axle sleeve 25 and the two rotate and connect, the cover is equipped with torsional spring 250 on the axle sleeve 25, the both ends of torsional spring 250 connect respectively in horizontal support arm 2 with swing seat 23.

It can be seen in combination with the above embodiment, the utility model discloses in practical application, swing seat 23 both can set up 1 and keep out post 24 and also can set up 2 and keep out post 24 to above-mentioned mode all can realize centre gripping cell-phone 100's function, no matter which implementation mode is adopted promptly, all belong to the utility model discloses a protection scope.

In connection with the above-mentioned embodiment, the utility model discloses second grade elasticity clamping mechanism has still been found, has utilized promptly extension spring 40 exerts traction force to two horizontal arm lock 2 to press from both sides cell-phone 100 tightly, this process is as first order clamping mechanism, on this basis, utilizes torsional spring 250 is right swing seat 23 applys torsion, recycles both sides and keeps off post 24 and press from both sides cell-phone 100 once more tightly, and this process is as second grade clamping mechanism, based on above-mentioned second grade clamping mechanism, makes the utility model discloses can be more stable, reliably with cell-phone 100 centre gripping fixed, improved cell phone stand's wholeness ability greatly, be particularly useful for in the on-vehicle environment.

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

1. A span self-positioning linkage clamping mechanism of a mobile phone support is characterized by comprising two transverse clamping arms and a supporting frame, the transverse clamping arm comprises a transverse sliding block which is connected with the supporting frame in a sliding way, a linkage gear penetrates through the support frame, a transverse straight rack is formed at the end part of the transverse sliding block, two transverse straight racks are respectively arranged at two sides of the linkage gear, the two transverse straight racks are parallel to each other and are both meshed with the linkage gear, a circular seat is formed at the bottom of the linkage gear and is positioned below the supporting frame, a first clamping part is formed at the edge of the round seat, a second clamping part is formed at the bottom of the supporting frame, one of the first clamping portion and the second clamping portion is a wave-shaped clamping portion extending along a circle, and the first clamping portion is elastically clamped with the second clamping portion;

when push-pull force is applied to the transverse clamping arms, the linkage gear drives the two transverse straight racks to be synchronously far away or close to each other, and the two transverse clamping arms are positioned at corresponding positions under the elastic clamping action of the first clamping portion and the second clamping portion.

2. The span self-positioning linkage clamping mechanism of a mobile phone support according to claim 1, wherein the circular base is in a ring shape, the circular base surrounds the linkage gear with a gap therebetween, and the circular base and the linkage gear are connected through at least two connecting portions.

3. The handset mount span self-locating linkage clamp mechanism of claim 2 wherein the circular seat, the connecting portion and the linkage gear are integrally formed.

4. The span self-positioning linkage clamping mechanism of the mobile phone support as claimed in claim 2, wherein the second clamping portion comprises an annular seat, an inner corrugated portion extending along a circle is formed on an inner side wall of the annular seat, the first clamping portion is a semicircular protruding block, and the first clamping portion and the inner corrugated portion are mutually clamped.

5. The span self-positioning linkage clamping mechanism of the mobile phone support as claimed in claim 4, wherein two first clamping portions are symmetrically arranged and formed at the edge of the circular seat.

6. The span self-positioning linkage clamping mechanism of the mobile phone support as claimed in claim 2, wherein the first clamping portion is a wave-shaped clamping portion extending along a circle, the second clamping portion comprises a fixed block, the fixed block is disposed adjacent to the circular base, a first protruding portion is formed on the inner side of the fixed block, and the first protruding portion and the first clamping portion are mutually clamped.

7. The span self-positioning linkage clamping mechanism of the mobile phone support as claimed in claim 1, wherein the circular base is in a shape of a disc, the circular base and the linkage gear are concentrically arranged and integrally formed, the first clamping portion is a wave-shaped clamping portion extending along a circle, the second clamping portion comprises an elastic block, the elastic block is arranged adjacent to the circular base, a second protruding portion is formed on the inner side of the elastic block, and the second protruding portion and the first clamping portion are mutually clamped.

8. The mobile phone support span self-positioning linkage clamping mechanism as claimed in claim 1, wherein a tension spring is connected between one of the two lateral clamping arms and the support frame, and the tension spring is used for applying a pulling force to the lateral clamping arm to retract into the support frame.

9. The span self-positioning linkage clamping mechanism of a mobile phone support as claimed in claim 8, wherein the support frame is formed with a first hook, one of the two sliding bars is formed with a second hook, and the tension spring is connected between the first hook and the second hook.

10. The span self-positioning linkage clamping mechanism of the mobile phone support as claimed in claim 1, comprising a longitudinal bracket arm, wherein the longitudinal bracket arm comprises a longitudinal sliding block, the longitudinal sliding block is slidably connected with the support frame, a longitudinal spur rack is formed at an end of the longitudinal sliding block, the longitudinal spur rack extends to a side portion of the linkage gear, and the longitudinal spur rack and the linkage gear are meshed with each other.