WO2020143599A1

WO2020143599A1 - Mobile terminal support frame

Info

Publication number: WO2020143599A1
Application number: PCT/CN2020/070623
Authority: WO
Inventors: 林德利; 潘龙
Original assignee: 深圳市蓝禾技术有限公司
Priority date: 2019-01-11
Filing date: 2020-01-07
Publication date: 2020-07-16
Also published as: CN209534923U

Abstract

A mobile terminal support frame (100) comprises a support base (10), a first holding arm (20), a second holding arm (30), a support arm (40), and a driving assembly (50). The first holding arm (20) and the second holding arm (30) are oppositely disposed at two sides of the support base (10). The first holding arm (20), the second holding arm (30), and one end of the support arm (40) are disposed inside the support base (10). The support base (10) is internally provided with a transmission gear (14). A first transmission rack (23) is provided on the first holding arm (20). A second transmission rack (33) is provided on the second holding arm (30). The first transmission rack (23) and the second transmission rack (33) engage with the transmission gear (14). The driving assembly (50) comprises a first connecting arm (53), a second connecting arm (54), and a first elastic reset member (55). The first connecting arm (53) and the second connecting arm (54) are rotatably connected inside the support base (10). The first elastic reset member (55) is connected between the first connecting arm (53) and the second connecting arm (54). One end of the first connecting arm (53), one end of the second connecting arm (54), and the first elastic reset member (55) are configured to be coaxial. One end of the first connecting arm (53) is movably connected to the first holding arm (20). One end of the second connecting arm (54) is movably connected to the support arm (40). The mobile terminal support frame (100) is easy to operate.

Description

Mobile terminal bracket

Technical field

The utility model relates to the technical field of fixed brackets, in particular to a mobile terminal bracket.

Background technique

With the popularity of personal mobile terminal devices and the increasingly perfect functions of personal mobile terminal devices such as communication, navigation, multimedia, etc., personal mobile terminal devices are gradually becoming indispensable items in people's lives, especially mobile phones, for safety reasons When a user needs to use a mobile phone while driving, how to fix the mobile phone becomes a problem that must be solved.

Existing fixing brackets often need to hold the object while holding the object to be fixed, and support the support with one hand, and when removing the fixed object, it is necessary to pull out the object with force. This kind of action is not safe during driving, but also allows users to enjoy the convenience brought by mobile phones and cars, but adds some troublesome and backward experience.

Utility model content

In view of this, the utility model provides a mobile terminal bracket with a simple structure and convenient operation, and the length of the support arm can be adjusted to meet user needs.

A mobile terminal bracket includes a support base, a first clamp arm, a second clamp arm, a support arm, and a driving assembly; the first clamp arm and the second clamp arm are relatively disposed on both sides of the support base, and the support arm is disposed on the support The bottom of the seat, and one end of the first clamping arm, the second clamping arm, and the supporting arm are movably arranged in the supporting seat, the supporting seat is provided with a rotatable transmission gear, and the end of the first clamping arm located in the supporting seat A first transmission rack is provided, and a second transmission rack is provided at one end of the second clamping arm in the support base, the first transmission rack and the second transmission rack are respectively meshed with the transmission gear; the drive assembly includes a first The connecting arm, the second connecting arm and the first elastic return member, the first connecting arm and the second connecting arm are rotatably connected in the support base, and the first elastic return member is connected between the first connecting arm and the second connecting arm , One end of the first connecting arm, one end of the second connecting arm and the first elastic return member are arranged coaxially, the other end of the first connecting arm is movably connected to the first clamping arm or the second clamping arm, the second connecting arm The other end is movably connected to the support arm; when the support arm is moved downward by external force, the support arm drives the second connection arm, the first elastic return member and the first connection arm to rotate synchronously, so that the first connection arm and the transmission The gear drives the first clamp arm and the second clamp arm to approach each other; when the first clamp arm and the second clamp arm stop approaching each other, the support arm can continue to move downwards under external force, at this time the second connecting arm continues to rotate, the first An elastic reset member is elastically deformed.

In an embodiment of the present invention, a second elastic reset member is provided in the support base, the second elastic reset member is a tension spring, and one end of the second elastic reset member is connected to the second clamp arm, the first The other end of the two elastic return members is connected to the first clamping arm or the support base, and when the external force for the support arm disappears, the elastic force of the second elastic reset member causes the first clamping arm and the second clamping arm And reset the support arm.

In an embodiment of the present invention, a third elastic reset member is provided in the support base, the third elastic reset member is a torsion spring, the third elastic reset member is disposed in the transmission gear, and the third elastic reset member One end of the member is connected to the support base, and the other end of the third elastic reset member is connected to the transmission gear. When the external force for the support arm disappears, the elastic force of the third elastic reset member causes the first clamp arm, The second clamp arm and the support arm are reset.

In an embodiment of the present invention, the above mobile terminal bracket further includes a locking device, the locking device is fixed in the support base, the locking device includes an elastic claw, and the support arm is located on a side of the support base A positioning block is provided, and the elastic grip is located below the positioning block. An end of the positioning block near the elastic grip is provided with a clamping block. The outer diameter of the positioning block is smaller than the outer diameter of the clamping block. When the support arm continues to receive external force When moving downward, the positioning block can drive the elastic claw to move into the locking device, the elastic claw grasps the clamping block of the positioning block; when the support arm is moved downward again by external force, the elastic claw moves from the lock When the buckle device is moved out, the elastic claw releases the clamping block of the positioning block, and the elastic force of the first elastic reset member resets the support arm.

In the embodiment of the present invention, the above-mentioned locking device further includes a switch housing and an elastic component that drives the elastic claw to move out of the locking device. The inner wall of the switch housing is provided with an engaging block and a guide block. The engaging block An engaging groove is provided on the guide block, and the guide block is provided below the engaging block. The guide block is provided with a guide groove. The elastic component includes a movable frame, a fourth elastic return member, a swing arm and a fifth elastic return member. The movable frame is movably disposed in the switch housing, the elastic claw is connected to the movable frame, the fourth elastic return member is connected to the movable frame, and one end of the swing arm is connected to the fourth elastic return member, The other end of the swing arm is provided with a roller that cooperates with the engaging groove and the guide groove. One end of the fifth elastic reset member is connected to the switch housing, and the other end of the fifth elastic reset member is connected to the movable frame.

In the embodiment of the present invention, the side of the first connecting arm near the second connecting arm is provided with a rotating drum and a clamping groove, and the side of the second connecting arm near the first connecting arm is provided with a stopper and A rotating shaft, the stopper is arranged around the rotating shaft, the rotating shaft is arranged in the rotating drum, the first elastic resetting member is a torsion spring, the first elastic resetting member is sleeved on the rotating drum, the first elastic resetting member The first elastic arm includes a first elastic arm and a second elastic arm. The first elastic arm is locked in the clamping slot, and the second elastic arm is locked on one side of the block.

In an embodiment of the present invention, a side of the first connecting arm is provided with a first connecting post, the first clamping arm or the second clamping arm is provided with a first movable hole, and the first connecting post is movable It is provided in the first movable hole; one side of the second connection arm is provided with a second connection post, the support arm is provided with a second movable hole, and the second connection post is movably provided in the second activity Inside the hole.

In an embodiment of the present invention, the first movable hole and the second movable hole have a waist shape, and the length direction of the first movable hole and the length direction of the second movable hole form an angle with each other.

In an embodiment of the present invention, a transmission shaft is provided in the support base, the transmission shaft is fixedly connected in the support base, the transmission gear is rotatably connected to the transmission shaft, or a transmission shaft is provided in the support base , The transmission shaft is rotatably connected in the support base, the transmission gear is fixed on the transmission shaft; the drive assembly further includes a drive shaft, the drive shaft is fixedly connected in the support base, the first connecting arm, the The second connecting arm is rotatably connected to the drive shaft.

In an embodiment of the present invention, the end of the first clamping arm located outside the support base is provided with a first clamping portion for clamping the mobile terminal, and the end of the second clamping arm located outside the support base is provided There is a second clamping part for clamping the mobile terminal, the first clamping part is arranged opposite to the second clamping part, and one end of the support arm outside the support base is provided with a support part for supporting the mobile terminal, The first clamping part, the second clamping part and the supporting part are respectively provided with a gasket, and the gasket is provided with at least one protrusion.

The first clamp arm and the second clamp arm of the mobile terminal bracket of the present invention are relatively disposed on both sides of the support base, the support arm is disposed below the support base, and the first clamp arm, the second clamp arm, and the support arm One end is movably arranged in the support seat, the support seat is provided with a rotatable transmission gear, the first clamp arm is located on the end of the support seat with a first transmission rack, and the second clamp arm is located on the support seat One end is provided with a second transmission rack, the first transmission rack and the second transmission rack are respectively meshed with the transmission gear; the drive assembly includes a first connecting arm, a second connecting arm and a first elastic reset member, the first connecting arm And the second connecting arm are rotatably connected in the support base, the first elastic return member is connected between the first connecting arm and the second connecting arm, one end of the first connecting arm, one end of the second connecting arm and the first elastic The resetting member is arranged coaxially, the other end of the first connecting arm is movably connected to the first clamping arm, and the other end of the second connecting arm is movably connected to the supporting arm; when the supporting arm is moved downward by an external force, the supporting The arm drives the second connecting arm, the first elastic return member and the first connecting arm to rotate synchronously, so that the first connecting arm and the transmission gear drive the first clamping arm and the second clamping arm toward each other; when the first clamping arm and the second When the clamp arms stop approaching each other, the support arm can continue to move downwards under external force, and at this time, the second connecting arm continues to rotate, and the first elastic return member is elastically deformed. The mobile terminal support of the utility model has a simple structure and convenient operation, and the action of clamping the mobile terminal can be completed with one hand. Moreover, the length of the support arm can be adjusted, can adapt to a variety of different sizes of mobile terminals, and can meet user needs.

BRIEF DESCRIPTION

FIG. 1 is a schematic structural view of the mobile terminal support of the present invention in an open state.

FIG. 2 is a schematic structural diagram of the clamped state of the mobile terminal bracket of the present invention.

3a to 3c are schematic diagrams of a partial disassembly structure of the mobile terminal bracket shown in FIG. 1.

FIG. 4 is a schematic diagram of a partial split structure of the mobile terminal support shown in FIG. 2.

FIG. 5 is an exploded schematic view of the mobile terminal bracket shown in FIG. 1.

6 is a schematic view of the split structure of the drive assembly of the present invention.

7 is a schematic perspective view of the utility model lock device.

8a to 8d are schematic cross-sectional structural views of the lock device of the present invention in different states.

detailed description

In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be further described below with reference to the drawings.

FIG. 1 is a schematic structural view of the mobile terminal support of the present invention in an open state. FIG. 2 is a schematic structural diagram of the clamped state of the mobile terminal bracket of the present invention. 3a to 3c are schematic diagrams of a partial disassembly structure of the mobile terminal bracket shown in FIG. 1. FIG. 4 is a schematic diagram of a partial split structure of the mobile terminal support shown in FIG. 2. FIG. 5 is an exploded schematic view of the mobile terminal bracket shown in FIG. 1. Please refer to FIGS. 1 to 5, the mobile terminal support 100 includes a support base 10, a first clamping arm 20, a second clamping arm 30, a supporting arm 40, a driving assembly 50 and a locking device 60.

The support base 10 includes a front shell 11 and a rear shell 12. The front case 11 is connected to the rear case 12. The support base 10 is provided with a transmission shaft 13, a transmission gear 14, a first limit post 15, a second limit post 16, a third limit post 17, and a second elastic return member 18. Preferably, the drive shaft 13, the first One end of a limit post 15, a second limit post 16 and a third limit post 17 are fixed on the rear shell 12. The transmission gear 14 is rotatably connected to the transmission shaft 13, but not limited to this, for example, the transmission gear 14 is fixed to the transmission shaft 13, and the transmission shaft 13 is rotatably connected between the front case 11 and the rear case 12. The second elastic return member 18 is a tension spring, one end of the second elastic return member 18 is fixed on the rear shell 12 of the support base 10, and the other end of the second elastic return member 18 is connected to the second clamping arm 30, or the second elastic One end of the reset member 18 is connected to the second clamp arm 30, and the other end of the second elastic reset member 18 is connected to the first clamp arm 20. The second elastic reset member 18 is used to drive the second clamp arm 30 to move and reset. The support base 10 is provided with a first guide groove 101 and a second guide groove 102, the first guide groove 101 is provided along the width direction of the support base 10, and both ends of the first guide groove 101 penetrate the support base 101; the second guide The groove 102 is provided along the length direction of the support base 10, one end of the second guide groove 102 communicates with the first guide groove 101, and the other end of the second guide groove 102 penetrates the support base 10. In this embodiment, the first guide groove 101 and the second guide groove 102 are perpendicular to each other. The front case 11 of the support base 10 has a supporting surface 111 for carrying a mobile terminal (cell phone, tablet computer, display panel, etc.). Preferably, the supporting surface 111 is, for example, a flat surface or a curved surface, but it is not limited thereto.

In another preferred embodiment, the support base 10 is provided with a third elastic return member (not shown), the third elastic return member is a torsion spring, the third elastic return member is disposed in the transmission gear 14, and the third elastic return member One end of the member is connected to the rear shell 12 of the support base 10, and the other end of the third elastic return member is connected to the transmission gear 14. The third elastic return member is used to drive the transmission gear 14 to rotate and reset.

One end of the first clamping arm 20 is slidably disposed in the support base 10 along the horizontal direction. Preferably, one end of the first clamping arm 20 located in the support base 10 is disposed in the first guide groove 101, and the first clamping arm 20 The other end of the is provided with a first clamping portion 22 for clamping the mobile terminal, and the first clamping portion 22 is located above the support surface 111. The first clamping arm 20 is provided with a first limiting slot 103 and a first movable hole 104; the length of the first limiting slot 103 is parallel to the moving direction of the first clamping arm 20, and the first limiting column 15 is provided In the first limiting groove 103; the first movable hole 104 is disposed along the width direction of the first clamping arm 20, and the first movable hole 104 is waist-shaped. In this embodiment, a first transmission rack 23 is provided at one end of the first clamping arm 20 in the support base 10, and the first transmission rack 23 is disposed along the length direction of the first clamping arm 20.

The second clamp arm 30 is disposed opposite to the first clamp arm 20, and one end of the second clamp arm 30 is slidably disposed in the support base 10 along the horizontal direction. Preferably, the second clamp arm 20 is located at one end in the support base 10 Set in the first guide groove 101, the other end of the second clamping arm 30 is provided with a second clamping portion 32 for clamping the mobile terminal, the second clamping portion 32 is opposite to the first clamping portion 22, the second The clamping portion 32 is located above the support surface 111. The second clamping arm 30 is provided with a second limiting slot 105, the length direction of the second limiting slot 105 is parallel to the moving direction of the second clamping arm 30, and the second limiting post 16 is disposed in the second limiting slot 105. In this embodiment, a second transmission rack 33 is provided at one end of the second clamping arm 30 in the support base 10, and the second transmission rack 33 is arranged along the length direction of the second clamping arm 30. The bar 33 is parallel to the first driving rack 24. It is worth mentioning that the second movable arm 30 can also be provided with a first movable hole 104, the first movable hole 104 is provided along the width direction of the second clamp arm 30, the first movable hole 104 is waist-shaped, according to actual needs Free choice.

One end of the support arm 40 is slidably provided in the support base 10 along the vertical direction. Preferably, one end of the support arm 40 located in the support base 10 is provided in the second guide groove 102, and the other end of the support arm 40 is provided with a The supporting portion 42 supporting the mobile terminal is located above the supporting surface 111. The first clamping portion 22, the second clamping portion 32, and the support portion 42 are respectively provided with gaskets, and the gasket is provided with at least one raised portion, the raised portion is used for anti-skid, to prevent scratching the surface of the mobile phone and suitable Equipped with mobile phones of various widths.

The support arm 40 is provided with a third limit slot 106 and a second movable hole 107; the length of the third limit slot 106 is parallel to the moving direction of the support arm 40, and the third limit column 17 is set at the third limit In the slot 106; the second movable hole 107 is provided along the width direction of the support arm 40, the second movable hole 107 has a waist shape, the length direction of the second movable hole 107 and the length direction of the first movable hole 104 form an angle with each other Preferably, the included angle is 90°, but not limited to this. One end of the support arm 40 in the support base 10 is provided with an escape gap 108. In this embodiment, a positioning block 44 is provided on the side of the support arm 40 in the support base 10. Preferably, the positioning block 44 is formed by bending the end of the support arm 40. The positioning block 44 is located outside the avoiding gap 108, and the positioning block 44 has a wedge shape as a whole.

Please refer to FIGS. 3 a to 5. The driving assembly 50 includes a driving shaft 52, a first connecting arm 53, a second connecting arm 54 and a first elastic return member 55. The first connecting arm 53 and the second connecting arm 54 are rotatably connected in the supporting base 10, for example, the driving shaft 52 is fixedly connected in the supporting base 10, one end of the first connecting arm 53, one end of the second connecting arm 54 and the first An elastic reset member 55 is coaxially arranged, the first connecting arm 53 and the second connecting arm 54 are rotatably connected to the drive shaft 52, and the other end of the first connecting arm 53 is movably connected to the first clamping arm 20 or the second The clamp arm 30 and the other end of the second connecting arm 54 are movably connected to the supporting arm 40. The first elastic return member 55 is a torsion spring. The first elastic return member 55 is connected between the first connection arm 53 and the second connection arm 54. The drive shaft 52 passes through the first elastic return member 55. The first connecting arm 53 and the second connecting arm 54 are provided corresponding to the escape gap 108 of the support arm 40.

Further, FIG. 6 is a schematic diagram of a split structure of the driving assembly of the present invention. As shown in FIG. 6, the side of the first connecting arm 53 near the second connecting arm 54 is provided with a rotating drum 531 and a locking groove 109, and the side of the second connecting arm 54 near the first connecting arm 53 is provided with a stopper 541 and The rotating shaft 542 and the stopper 541 are disposed around the rotating shaft 542, and the rotating shaft 542 is disposed in the rotating drum 531. The first elastic resetting member 55 is sleeved on the rotating drum 531. The first elastic resetting member 55 includes a first elastic arm 551 and a second elastic arm 552. The first elastic arm 551 is locked in the locking slot 109, and the second elastic arm The 552 card is provided on one side of the stopper 541. A first connecting post 532 is provided on one side of the first connecting arm 53. The first connecting post 532 is movably disposed in the first movable hole 104; a second connecting post 543 is provided on one side of the second connecting arm 54. The two connecting posts 543 are movably disposed in the second movable hole 107. When the support arm 40 is moved downward by the external force, the support arm 40 drives the second connecting arm 54, the first elastic return member 55 and the first connecting arm 5 to rotate synchronously, so that the first connecting arm 53 and the transmission gear 14 drive the first The clamping arm 20 and the second clamping arm 30 approach each other; when the first clamping arm 20 and the second clamping arm 30 stop approaching each other, the support arm 40 can continue to move downwards under external force, at which time the second connecting arm 54 continues to rotate , The stopper 541 pushes the second elastic arm 552 to elastically deform the first elastic reset member 55; when the external force for supporting the arm 40 disappears, the first elastic reset member 55 drives the second connecting arm 54 to rotate and reset, and the second The elastic reset member 18 drives the first clamp arm 20, the second clamp arm 30 and the support arm 40 to reset by elastic force.

7 is a schematic perspective view of the utility model lock device. 8a to 8d are schematic cross-sectional structural views of the lock device of the present invention in different states. Please refer to FIG. 3 a to FIG. 8 d, the locking device 60 includes a switch housing 61, an elastic component 62 and an elastic claw 63. The locking device 60 is fixed in the support base 10 and is located below the positioning block 44. The end of the positioning block 44 near the elastic grip 63 is provided with a clamping block. The outer diameter of the positioning block 44 is smaller than the outer diameter of the clamping block. When the support arm 40 When the external force continues to move downward, the positioning block 44 can drive the elastic claw 63 to move into the locking device 60. The elastic claw 63 grasps the clamping block of the positioning block 44 to lock the support arm 40 in the current position; when the support arm 40 When the external force moves downward again, the elastic claw 63 moves out of the locking device 60, the elastic claw 63 releases the clamping block of the positioning block 44, and the elastic force of the first elastic reset member 55 resets the support arm 40.

Further, one side of the switch housing 61 is fixed in the support base 10, and the inner wall of the switch housing 61 is provided with an engaging block 612 and a guide block 613. The engaging block 612 is provided with a first inclined surface 601, a second inclined surface 602 and an engaging groove 603. The inclination angle of the first inclined surface 601 is smaller than that of the second inclined surface 602, and the engaging groove 603 is located between the first inclined surface 601 and the second Between the inclined surfaces 602, and the opening of the engaging groove 603 faces the guide block 613. The guiding block 613 is disposed below the engaging block 612. The guiding block 613 is provided with a guiding groove 604, the opening of the guiding groove 604 faces the engaging block 612, and a part of the guiding groove 604 is offset from the engaging groove 603. The elastic component 62 includes a movable frame 621, a fourth elastic return member (not shown), a swing arm 623, and a fifth elastic return member 625. The movable frame 621 is movably disposed in the switch housing 61; the elastic claw 63 is connected to the movable frame 621; the fourth elastic return member is a torsion spring, and the fourth elastic return member is connected to the movable frame 621, and one end of the swing arm 623 is connected to The fourth elastic reset member is connected, and the other end of the swing arm 623 is provided with a roller 624 that cooperates with the engaging groove 603 and the guide groove 604; one end of the fifth elastic reset member 625 is connected to the switch housing 61, and the fifth elastic reset member 625 The other end is connected to the movable frame 621.

The first clamp arm 20 and the second clamp arm 30 of the mobile terminal support 100 of the present invention are relatively disposed on both sides of the support base 10, the support arm 40 is disposed below the support base 10, and the first clamp arm 20, the first One end of the second clamp arm 30 and the support arm 40 is movably disposed in the support base 10, and the support base 10 is provided with a rotatable transmission gear 14, and the first end of the first clamp arm 20 located in the support base 10 is provided with a first The transmission rack 23 and the first driving rack 24, the end of the second clamping arm 30 in the support base 10 is provided with a second transmission rack 33, and the end of the support arm 40 in the support base 10 is provided with a second drive The rack 43, the first transmission rack 23, and the second transmission rack 33 respectively mesh with the transmission gear 14; the drive assembly 50 includes a first connecting arm 53, a second connecting arm 54, and a first elastic return member 55, the first The connecting arm 53 and the second connecting arm 54 are rotatably connected in the support base 10, and the first elastic return member 55 is connected between the first connecting arm 53 and the second connecting arm 54. One end of the second connecting arm 54 and the first elastic return member 55 are coaxially arranged, the other end of the first connecting arm 53 is movably connected to the first clamping arm 20, and the other end of the second connecting arm 54 is movably connected to the support Arm 40; when the support arm 40 is moved downward by external force, the support arm 40 drives the second connecting arm 54, the first elastic return member 55 and the first connecting arm 53 to rotate synchronously, so that the first connecting arm 53 and the transmission gear 14 Drive the first clamping arm 20 and the second clamping arm 30 to approach each other; when the first clamping arm 20 and the second clamping arm 30 stop approaching each other, the support arm 40 can continue to move downwards under external force, at this time the second connecting arm 54 continues to rotate, and the first elastic return member 55 is elastically deformed. The mobile terminal support 100 of the present invention has a simple structure and convenient operation, and the action of clamping the mobile terminal can be completed with one hand. Moreover, the length of the support arm 40 can be adjusted, can be adapted to a variety of mobile terminals of different sizes, and can meet user needs.

In addition, the mobile terminal support 100 of the present invention is provided with a locking device 60 which can fix the support arm 40 so that the first clamping arm 20, the second clamping arm 30 and the supporting arm 40 can clamp the mobile terminal Tighter, which improves the stability of the mobile terminal stand 100, even if the mobile terminal stand 100 is rotated 90° in the horizontal direction, the mobile terminal will not fall off.

The utility model is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the utility model, various simple modifications can be made to the technical solution of the utility model. These simple modifications belong to the protection scope of the utility model. The individual specific technical features described in the above specific embodiments may be combined in any suitable manner without contradictions. In order to avoid unnecessary repetition, the present invention does not describe various possible combinations.

Claims

A mobile terminal bracket is characterized by comprising a support base, a first clamping arm, a second clamping arm, a supporting arm and a driving assembly;

The first clamp arm and the second clamp arm are oppositely disposed on both sides of the support base, the support arm is disposed below the support base, and the first clamp arm, the second clamp arm, and the support arm One end is movably arranged in the support seat, the support seat is provided with a rotatable transmission gear, the first clamping arm is provided with a first transmission rack on the end located in the support seat, and the second clamping arm A second transmission rack is provided at one end in the support base, and the first transmission rack and the second transmission rack respectively mesh with the transmission gear;

The driving assembly includes a first connecting arm, a second connecting arm and a first elastic resetting member, the first connecting arm and the second connecting arm are rotatably connected in the support base, and the first elastic resetting member is connected to the Between the first connecting arm and the second connecting arm, one end of the first connecting arm, one end of the second connecting arm and the first elastic return member are coaxially arranged, and the other end of the first connecting arm is movable Connected to the first clamping arm or the second clamping arm, the other end of the second connecting arm is movably connected to the supporting arm;

When the supporting arm is moved downward by external force, the supporting arm drives the second connecting arm, the first elastic return member and the first connecting arm to rotate synchronously, so that the first connecting arm and the transmission gear drive the first A clamp arm and the second clamp arm approach each other;

When the first clamping arm and the second clamping arm stop coming close to each other, the support arm can continue to move downwards under external force, and at this time, the second connecting arm continues to rotate, and the first elastic return member is elastically deformed.
The mobile terminal stand according to claim 1, wherein a second elastic reset member is provided in the support base, the second elastic reset member is a tension spring, and one end of the second elastic reset member is connected to the second The other end of the second elastic reset member is connected to the first clamping arm or the support base, when the external force for the support arm disappears, the elastic force of the second elastic reset member causes the first clamping arm, The second clamp arm and the support arm are reset.
The mobile terminal bracket according to claim 1, wherein a third elastic return member is provided in the support base, the third elastic return member is a torsion spring, and the third elastic return member is disposed in the transmission gear , One end of the third elastic reset member is connected to the support base, and the other end of the third elastic reset member is connected to the transmission gear. When the external force for the support arm disappears, the elastic force of the third elastic reset member causes The first clamp arm, the second clamp arm and the support arm are reset.
The mobile terminal bracket of claim 1, wherein the mobile terminal bracket further comprises a locking device, the locking device is fixed in the support base, the locking device includes an elastic claw, and the supporting arm is located on the A positioning block is provided on one side in the support base, and the elastic grip is located below the positioning block. An end of the positioning block near the elastic grip is provided with a clamping block. The outer diameter of the positioning block is smaller than the outer diameter of the clamping block. When the supporting arm continues to move downwards under external force, the positioning block can drive the elastic claw to move into the locking device, and the elastic claw grasps the locking block of the positioning block; when the supporting arm moves downward again under external force, The elastic claw is removed from the locking device, the elastic claw releases the clamping block of the positioning block, and the elastic force of the first elastic reset member resets the support arm.
The mobile terminal stand according to claim 4, wherein the locking device further includes a switch housing and an elastic component that drives the elastic claw to move out of the locking device, and the inner wall of the switch housing is provided with an engaging block and a guide Block, the engaging block is provided with an engaging groove, the guiding block is provided below the engaging block, the guiding block is provided with a guiding groove, and the elastic component includes a movable frame, a fourth elastic return member, a swing arm and A fifth elastic reset member, the movable frame is movably disposed in the switch housing, the elastic claw is connected to the movable frame, the fourth elastic reset member is connected to the movable frame, one end of the swing arm is connected to the first Four elastic reset members are connected, the other end of the swing arm is provided with a roller matching the engaging groove and the guide groove, one end of the fifth elastic reset member is connected to the switch housing, and the other end of the fifth elastic reset member Connect with the movable frame.
The mobile terminal stand according to claim 1, wherein the side of the first connecting arm near the second connecting arm is provided with a rotating drum and a clamping slot, and the second connecting arm is near a side of the first connecting arm A stop and a rotating shaft are arranged on the side, the stop is arranged around the rotating shaft, the rotating shaft is arranged in the rotating drum, the first elastic return member is a torsion spring, and the first elastic reset member is sleeved on the rotating drum, The first elastic resetting member includes a first elastic arm and a second elastic arm. The first elastic arm is snapped in the clamping slot, and the second elastic arm is snapped on one side of the block.
The mobile terminal bracket according to any one of claims 1 to 6, wherein a first connecting post is provided on one side of the first connecting arm, and a first connecting arm or a second connecting arm is provided with a first A movable hole, the first connecting post is movably disposed in the first movable hole; a side of the second connecting arm is provided with a second connecting post, and a second movable hole is provided on the supporting arm, the second The connecting post is movably arranged in the second movable hole.
The mobile terminal stand according to claim 7, wherein the first movable hole and the second movable hole are of a waist shape, and the length direction of the first movable hole and the length direction of the second movable hole are mutually sandwiched angle.
The mobile terminal bracket according to any one of claims 1 to 6, wherein a transmission shaft is provided in the support base, the transmission shaft is fixedly connected in the support base, and the transmission gear is rotatably connected to the transmission The shaft, or the support seat is provided with a transmission shaft, the transmission shaft is rotatably connected in the support seat, the transmission gear is fixed on the transmission shaft; the drive assembly further includes a drive shaft, the drive shaft is fixedly connected to the In the support base, the first connecting arm and the second connecting arm are rotatably connected to the driving shaft.
The mobile terminal bracket according to any one of claims 1 to 6, wherein an end of the first clamping arm located outside the support base is provided with a first clamping portion for clamping the mobile terminal, and the second A second clamping part for clamping the mobile terminal is provided on an end of the clamping arm outside the support base, the first clamping part is opposite to the second clamping part, and the support arm is located outside the support base A support portion for supporting the mobile terminal is provided at one end. The first clamping portion, the second clamping portion, and the support portion are respectively provided with spacers, and the spacers are provided with at least one raised portion.