CN211127880U

CN211127880U - Mobile terminal support

Info

Publication number: CN211127880U
Application number: CN202020156984.3U
Authority: CN
Inventors: 李卫; 余建顺; 潘龙
Original assignee: Shenzhen Ranvoo Technology Co Ltd
Current assignee: Shenzhen Jianjun Technology Co ltd
Priority date: 2020-02-06
Filing date: 2020-02-06
Publication date: 2020-07-28
Anticipated expiration: 2030-02-06

Abstract

The utility model discloses a mobile terminal bracket, which comprises a supporting seat, a first clamping arm, a second clamping arm, a supporting arm, a linkage component and a resetting piece; the first clamping arm comprises an upper left clamping arm and a lower left clamping arm, one end of the upper left clamping arm is rotatably connected in the supporting seat; the second clamping arm comprises a right upper clamping arm and a right lower clamping arm, one end of the right upper clamping arm and one end of the right lower clamping arm are rotatably connected in the supporting seat; the support arm comprises a first connecting rod structure, a second connecting rod structure and a support part, two ends of the first connecting rod structure are respectively and rotatably connected with the left lower clamping arm and the support part, and two ends of the second connecting rod structure are respectively and rotatably connected with the right lower clamping arm and the support part; the linkage assembly comprises a left driving arm, a right driving arm, a left driven arm and a right driven arm, wherein two ends of the left driving arm are respectively and rotatably connected with one end of the left lower clamping arm and one end of the left driven arm, the other end of the left driven arm is rotatably connected with the left upper clamping arm, two ends of the right driving arm are respectively and rotatably connected with one end of the right lower clamping arm and one end of the right driven arm, and the other end of the right driven arm is rotatably connected with the right upper clamping arm.

Description

Mobile terminal support

Technical Field

The utility model relates to a fixed bolster technical field especially relates to a mobile terminal support.

Background

With the popularization of personal mobile terminals and the increasing improvement of functions of personal mobile terminals, such as communication, navigation, multimedia and the like, personal mobile terminals are becoming indispensable articles in people's lives, especially mobile phones.

At present, among the ubiquitous people's of cell phone stand life, common cell phone stand type generally divide into magnetism type of inhaling and gravity centre gripping type on the market, and wherein, gravity centre gripping type support is including setting up the support arm in the casing bottom and setting up the arm lock in the casing both sides, and the automatic centre gripping of both sides arm lock is realized to the action of gravity of the thing of treating the centre gripping of mainly relying on placing on the support arm. However, the existing gravity clamping type support is only provided with two clamping arms generally, the clamping stability is not high, and the supporting arm and the clamping arms of the mobile phone support cannot change the length when the mobile phone is not supported, so that the whole size of the mobile phone support is large, and the gravity clamping type support can shield air outlet of an air conditioner when being fixed at an automobile air outlet.

SUMMERY OF THE UTILITY MODEL

In order to overcome the shortcoming and the deficiency that exist among the prior art, the utility model aims to provide a mobile terminal support to solve among the prior art cell phone stand when not centre gripping cell-phone, whole volume is great, can shelter from the problem of air conditioner air-out.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a mobile terminal bracket, which comprises a supporting seat, a first clamping arm, a second clamping arm, a supporting arm, a linkage component and a resetting piece;

the first clamping arm comprises an upper left clamping arm and a lower left clamping arm, and one ends of the upper left clamping arm and the lower left clamping arm are rotatably connected in the supporting seat;

the second clamping arm is opposite to the first clamping arm and comprises an upper right clamping arm and a lower right clamping arm, and one end of each of the upper right clamping arm and the lower right clamping arm is rotatably connected in the supporting seat;

the supporting arm is arranged below the supporting seat and comprises a first connecting rod structure, a second connecting rod structure and a supporting part, one end of the first connecting rod structure is rotatably connected with the left lower clamping arm, the other end of the first connecting rod structure is rotatably connected with the supporting part, one end of the second connecting rod structure is rotatably connected with the right lower clamping arm, and the other end of the second connecting rod structure is rotatably connected with the supporting part;

the linkage assembly is arranged in the supporting seat and comprises a left driving arm, a right driving arm, a left driven arm and a right driven arm, one end of the left driving arm is rotatably connected with the left lower clamping arm, the other end of the left driving arm is rotatably connected with one end of the left driven arm, the other end of the left driven arm is rotatably connected with the left upper clamping arm, one end of the right driving arm is rotatably connected with the right lower clamping arm, the other end of the right driving arm is rotatably connected with one end of the right driven arm, and the other end of the right driven arm is rotatably connected with the right upper clamping arm;

the reset piece is arranged in the supporting seat and used for enabling the supporting part to be tightened at the bottom of the supporting seat and enabling the first clamping arm and the second clamping arm to be kept in an open state.

Further, this linkage subassembly still includes left transmission slider and right transmission slider, be equipped with in this supporting seat with this left transmission slider and this right transmission slider complex spout, this left transmission slider and this right transmission slider can be in this spout horizontal slip, the one end of this left driving arm and this left driven arm all rotationally is connected with this left transmission slider, the one end of this right driving arm and this right driven arm all rotationally is connected with this right transmission slider.

Furthermore, all be equipped with first dog on this left side transmission slider and this right side transmission slider, this supporting seat is equipped with the second dog in this spout, and this piece that resets is the spring, and the one end that should reset leans on with this first dog counterbalance, and the other end that should reset leans on with this second dog counterbalance.

Further, all be equipped with two stoppers on this left side transmission slider and this right side transmission slider, should reset and accomodate between these two stoppers.

Furthermore, the limiting block and the first stop block are provided with limiting inclined planes, and when the mobile terminal is not placed on the supporting portion, the left driving arm, the right driving arm, the left driven arm and the right driven arm are all abutted to the limiting inclined planes.

Further, this supporting seat is including preceding shell and the backshell that links together, and this spout and this stopper are located this backshell towards one side of this preceding shell, and one side of this preceding shell towards this backshell is equipped with and this left side transmission slider and this right side transmission slider matched with support arris.

Furthermore, one end of the left lower clamping arm in the supporting seat is provided with a first tooth part which is arranged in a circular arc shape, one end of the right lower clamping arm in the supporting seat is provided with a second tooth part which is arranged in a circular arc shape, and the first tooth part is meshed with the second tooth part.

Furthermore, one end of the first link structure close to the support portion is provided with a third tooth portion arranged in a circular arc shape, one end of the second link structure close to the support portion is provided with a fourth tooth portion arranged in a circular arc shape, and the third tooth portion is meshed with the fourth tooth portion.

Furthermore, a first clamping part for clamping the mobile terminal is arranged at one end of the upper left clamping arm positioned outside the supporting seat, a second clamping part for clamping the mobile terminal is arranged at one end of the lower left clamping arm positioned outside the supporting seat, and the first clamping part and the second clamping part are arranged oppositely up and down; one end of the upper right clamping arm, which is positioned outside the supporting seat, is provided with a third clamping part for clamping the mobile terminal, one end of the lower right clamping arm, which is positioned outside the supporting seat, is provided with a fourth clamping part for clamping the mobile terminal, and the third clamping part and the fourth clamping part are arranged oppositely from top to bottom.

Furthermore, the surfaces of the first clamping part, the second clamping part, the third clamping part and the fourth clamping part, which are matched with the mobile terminal, are all cambered surfaces; soft rubber pads are arranged on one sides of the first clamping part, the second clamping part, the third clamping part, the fourth clamping part, the supporting part and the mobile terminal in a matching mode.

The utility model has the advantages that: the utility model discloses a left side actuating arm, right side actuating arm, left side driven arm and right driven arm make upper left arm lock, lower left arm lock, upper right arm lock, right side lower arm lock and support arm realize linkage each other, upper left arm lock, lower left arm lock, upper right arm lock and lower right arm lock centre gripping mobile terminal, make the stability of centre gripping improve greatly, and when not centre gripping cell-phone, it relies on elasticity to reset makes the supporting part tighten up in the bottom of supporting seat and makes first arm lock and second arm lock keep opening the state, make upper left arm lock and lower left arm lock draw close each other and upper right arm lock and lower right arm lock draw close each other simultaneously, overall structure is compact, small, do not shelter from the air outlet.

Drawings

Fig. 1 is a schematic view of the structure of the mobile terminal of the present invention when the mobile terminal is folded.

Fig. 2 is a schematic diagram of the rear view structure of the middle mobile terminal bracket of the present invention when it is opened.

Fig. 3 is a schematic view of the front view structure of the middle mobile terminal bracket of the present invention when the front shell is removed and the bracket is folded.

Fig. 4 is a schematic structural view of the mobile terminal when the front shell is removed and the mobile terminal is opened.

Fig. 5 is a schematic diagram of the rear view structure of the middle mobile terminal bracket when the rear shell is removed and the middle mobile terminal bracket is opened.

Fig. 6 is a rear view structure diagram of the middle front shell of the present invention.

Fig. 7 is a schematic view of the front view structure of the middle back shell of the present invention.

Fig. 8 is a schematic view of the structure of the middle slider.

Fig. 9 is a schematic view of the structure of the mobile terminal holder of the present invention.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the objectives of the present invention, the following detailed description is provided for the specific embodiments, structures, features and effects of the mobile terminal support according to the present invention with reference to the accompanying drawings and preferred embodiments as follows:

fig. 1 is the utility model discloses the main structure schematic diagram of looking when well mobile terminal support draws in, fig. 2 is the utility model discloses well mobile terminal support opens the back structure schematic diagram when, fig. 3 is the utility model discloses well mobile terminal support removes the front shell and draws in the main structure schematic diagram when in, fig. 4 is the utility model discloses well mobile terminal support removes the front shell and opens the main structure schematic diagram of looking when, fig. 5 is the utility model discloses well mobile terminal support removes the back shell and opens the back structure schematic diagram of looking when, fig. 6 is the utility model discloses the back structure schematic diagram of well front shell, fig. 7 is the utility model discloses the main structure schematic diagram of looking of well back shell, fig. 8 is the main structure schematic diagram of looking of well slider, fig. 9 is the main structure schematic diagram of looking when well mobile terminal support centre gripping mobile terminal.

As shown in fig. 1 to 9, the present invention provides a mobile terminal support, which comprises a supporting seat 10, a first clamping arm 20, a second clamping arm 30, a supporting arm 40, a linkage assembly 50 and a reset element 60.

The first clamping arm 20 comprises an upper left clamping arm 21 and a lower left clamping arm 22, and one ends of the upper left clamping arm 21 and the lower left clamping arm 22 are connected with the support 10 through rotating shafts and are rotatably connected in the support 10.

The second clamping arm 30 is disposed opposite to the first clamping arm 20, and for the supporting seat 10, the first clamping arm 20 is disposed on the left side of the supporting seat 10, and the second clamping arm 30 is disposed on the right side of the supporting seat 10. The second clamping arm 30 comprises an upper right clamping arm 31 and a lower right clamping arm 32, and one end of each of the upper right clamping arm 31 and the lower right clamping arm 32 is connected with the support 10 through a rotating shaft and is rotatably connected in the support 10.

Support arm 40 sets up the below at supporting seat 10, support arm 40 includes first link structure 41, second link structure 42 and supporting part 43, the one end of first link structure 41 is rotationally connected with lower left arm lock 22 through the pivot, the other end of first link structure 41 is rotationally connected with supporting part 43 through the pivot, the one end of second link structure 42 is rotationally connected with lower right arm lock 32 through the pivot, the other end of second link structure 42 is rotationally connected with supporting part 43 through the pivot. One end of the first link structure 41 and one end of the second link structure 42 may be rotatably connected to the supporting portion 43 through the same rotating shaft, or may be rotatably connected to the supporting portion 43 through one rotating shaft, respectively.

As shown in fig. 3 and 4, the linkage assembly 50 is disposed in the support seat 10, the linkage assembly 50 includes a left driving arm 51, a right driving arm 52, a left driven arm 53 and a right driven arm 54, one end of the left driving arm 51 is rotatably connected to the left lower clamp arm 22 through a rotating shaft, the other end of the left driving arm 51 is rotatably connected to one end of the left driven arm 53, and the other end of the left driven arm 53 is rotatably connected to the left upper clamp arm 21 through a rotating shaft. One end of the right driving arm 52 is rotatably connected to the right lower clamping arm 32 through a rotating shaft, the other end of the right driving arm 52 is rotatably connected to one end of the right driven arm 54, and the other end of the right driven arm 54 is rotatably connected to the right upper clamping arm 31 through a rotating shaft. Preferably, the connection point of the left driving arm 51 and the left lower clamping arm 22 is closer to the end of the left lower clamping arm 22 connected to the supporting seat 10 than the connection point of the first connecting rod structure 41 and the left lower clamping arm 22, and the connection point of the right driving arm 52 and the right lower clamping arm 32 is closer to the end of the right lower clamping arm 32 connected to the supporting seat 10 than the connection point of the second connecting rod structure 42 and the right lower clamping arm 32. The left upper clamp arm 21, the left lower clamp arm 22, the right upper clamp arm 31, the right lower clamp arm 32 and the support arm 40 are interlocked with each other by the left drive arm 51, the right drive arm 52, the left driven arm 53 and the right driven arm 54.

The reset member 60 is disposed in the support seat 10, the reset member 60 has an elastic force for tightening the support portion 43 at the bottom of the support seat 10 and keeping the first and

second clamp arms

20 and 30 in an open state, and when the mobile terminal 200 (e.g., a mobile phone or a tablet computer) is not placed on the support portion 43, the reset member 60 tightens the support portion 43 at the bottom of the support seat 10 and keeps the first and

second clamp arms

20 and 30 in an open state (see fig. 1 and 3) by means of the elastic force.

In this embodiment, the linkage assembly 50 further includes a left transmission slider 55 and a right transmission slider 56, the supporting seat 10 is provided with two sliding grooves 101 which are matched with the left transmission slider 55 and the right transmission slider 56, the left transmission slider 55 can slide left and right in one of the sliding grooves 101, and the right transmission slider 56 can slide left and right in the other one of the sliding grooves 101. One end of each of the left driving arm 51 and the left driven arm 53 is rotatably connected to the left transmission slider 55 through a rotating shaft, and one end of each of the right driving arm 52 and the right driven arm 54 is rotatably connected to the right transmission slider 56 through a rotating shaft. Of course, one end of the left driving arm 51 and one end of the left driven arm 53 may be rotatably connected to the left transmission slider 55 through the same rotation shaft, and one end of the right driving arm 52 and one end of the right driven arm 54 may be rotatably connected to the right transmission slider 56 through the same rotation shaft.

As shown in fig. 7 and 8, the left transmission slider 55 and the right transmission slider 56 are both provided with a first stopper 501, the first stopper 501 is provided with a mounting post 501a, the mounting post 501a of the left transmission slider 55 and the mounting post 501a of the right transmission slider 56 are oppositely disposed, the support seat 10 is provided with a second stopper 102 (fig. 7) in the sliding groove 101, one end of the reset member 60 is sleeved on the mounting post 501a and abuts against the first stopper 501, and the other end of the reset member 60 abuts against the second stopper 102. In other embodiments, the second stopper 102 is not required to be provided, the two sliding grooves 101 are communicated with each other, one end of the reset member 60 is sleeved on the mounting column 501a of the left transmission slider 55 and abuts against the first stopper 501, and the other end of the reset member 60 is sleeved on the mounting column 501a of the right transmission slider 56 and abuts against the first stopper 501.

The reset element 60 may be an extension spring, a torsion spring, and two magnets that repel or attract each other, and in this embodiment, the reset element 60 is two extension springs. In other embodiments, the restoring element 60 may also be a torsion spring, and the torsion spring may be disposed at a rotating shaft where the left lower arm 22 and the right lower arm 32 are rotatably connected to the supporting seat 10, or at a rotating shaft where the left upper arm 21 and the right upper arm 31 are rotatably connected to the supporting seat 10, which is not limited thereto.

As shown in fig. 8, in this embodiment, two limit blocks 502 are disposed on the left transmission slider 55 and the right transmission slider 56, and the reset element 60 is accommodated between the two limit blocks 502, so that the reset element 60 is prevented from moving when the reset element 60 is installed and compressed, thereby facilitating installation.

Furthermore, the limit block 502 and the first block 501 are provided with limit inclined surfaces 503, the limit block 502 and the limit inclined surfaces 503 of the first block 501 are located on the same plane, the limit inclined surfaces 503 on the limit block 502 are arranged on one side of the limit block 502 away from the reset piece 60, and the first block 501 is provided with two limit inclined surfaces 503, when the mobile terminal 200 is not placed on the support portion 43, the left driving arm 51, the right driving arm 52, the left driven arm 53 and the right driven arm 54 are all in contact with the limit inclined surfaces 503, so that the left driving arm 51, the right driving arm 52, the left driven arm 53 and the right driven arm 54 are more compactly stored in the support seat 10.

The supporting seat 10 comprises a front shell 11 and a rear shell 12, the front shell 11 and the rear shell 12 are connected together in a screw and buckle mode, a containing cavity is formed after the front shell 11 and the rear shell 12 are connected, a limiting hole 103 matched with a left upper clamping arm 21, a left lower clamping arm 22, a right upper clamping arm 31, a right lower clamping arm 32, a left driving arm 51, a right driving arm 52, a left driven arm 53 and a right driven arm 54 is arranged on the periphery of the supporting seat 10, and the limiting hole 103 is communicated with the containing cavity in the supporting seat 10. The chute 101 and the second stopper 102 are both disposed on one side of the rear case 12 facing the front case 11, an installation portion 111 is disposed on one side of the rear case 12 facing away from the front case 11, and the support seat 10 is connected to other fixing members fixed at the air outlet through the installation portion 111. One side of the front shell 11 departing from the rear shell 12 is a bearing surface 111 for bearing the mobile terminal 200, one side of the front shell 11 facing the rear shell 12 is provided with a supporting rib 112, and the supporting rib 112 is matched with the left transmission slider 55 and the right transmission slider 56 to reduce the amplitude of the front-back shaking of the left transmission slider 55 and the right transmission slider 56 in the support seat 10.

As shown in fig. 4, in this embodiment, a first tooth portion 221 arranged in a circular arc shape is disposed at one end of the left lower arm 22 in the support seat 10, a circle center of the first tooth portion 221 arranged in a circular arc shape coincides with an axis of the left lower arm 22 rotating around the support seat 10, a second tooth portion 321 arranged in a circular arc shape is disposed at one end of the right lower arm 32 in the support seat 10, a circle center of the second tooth portion 321 arranged in a circular arc shape coincides with an axis of the right lower arm 32 rotating around the support seat 10, and the first tooth portion 221 and the second tooth portion 321 are engaged with each other, so that the left lower arm 22 and the right lower arm 32 can rotate better synchronously. In other embodiments, the teeth of the left upper arm 21 and the teeth of the right upper arm 31 are arranged in a circular arc shape at the ends of the left upper arm 21 and the right upper arm 31 in the support seat 10, and the teeth of the left upper arm 21 are engaged with the teeth of the right upper arm 31.

As shown in fig. 5, in this embodiment, one end of the first link structure 41 close to the supporting portion 43 is provided with third teeth 411 arranged in a circular arc shape, the circle center of the circular arc shape of the third teeth 411 is coincident with the axis of the first link structure 41 rotating around the supporting portion 43, one end of the second link structure 42 close to the supporting portion 43 is provided with a fourth teeth 421 arranged in a circular arc shape, the circle center of the circular arc shape of the fourth teeth 421 is coincident with the axis of the second link structure 42 rotating around the supporting portion 43, and the third teeth 411 and the fourth teeth 421 are engaged with each other, so that the first link structure 41 and the second link structure 42 can rotate synchronously.

In this embodiment, a first clamping portion 211 for clamping the mobile terminal 200 is disposed at one end of the upper left clamping arm 21 located outside the supporting seat 10, a second clamping portion 222 for clamping the mobile terminal 200 is disposed at one end of the lower left clamping arm 22 located outside the supporting seat 10, and the first clamping portion 211 and the second clamping portion 222 are disposed opposite to each other in an up-and-down manner; a third clamping portion 311 for clamping the mobile terminal 200 is disposed at one end of the upper right clamping arm 31 located outside the supporting seat 10, a fourth clamping portion 322 for clamping the mobile terminal 200 is disposed at one end of the lower right clamping arm 32 located outside the supporting seat 10, and the third clamping portion 311 and the fourth clamping portion 322 are disposed oppositely. The first clamping portion 211, the second clamping portion 222, the third clamping portion 311, and the fourth clamping portion 322 are all provided with clamping grooves matched with the thickness of the mobile terminal 200.

Two support hooks 431 are arranged on the support part 43, a gap is formed between the two support hooks 431 to form a gap 432, the gap 432 corresponds to the charging interface of the mobile terminal 200, and the mobile terminal 200 can be conveniently charged when the mobile terminal 200 is clamped by the mobile terminal support.

In this embodiment, the surfaces of the first clamping portion 211, the second clamping portion 222, the third clamping portion 311, and the fourth clamping portion 322, which are matched with the mobile terminal 200, are all arc surfaces, that is, the bottom of the clamping groove is an arc surface, so as to be conveniently matched with mobile terminals 200 of different sizes.

Further, the first clamping portion 211, the second clamping portion 222, the third clamping portion 311, the fourth clamping portion 322, and the supporting portion 43 are all provided with a soft rubber pad on one side where they are matched with the mobile terminal 200, the soft rubber pad may be a silica gel pad or a rubber pad, when the mobile terminal 200 is clamped, the mobile terminal 200 is prevented from being scratched, and meanwhile, the friction force with the mobile terminal 200 is increased, so that the mobile terminal 200 is clamped more stably.

As shown in fig. 4 and 9, when the mobile terminal 200 is placed on the support portion 43, the support portion 43 moves downward, the left lower clamp arm 22 and the right lower clamp arm 32 are rotated in the approaching direction by the first link structure 41 and the second link structure 42, and the left upper clamp arm 21 and the right upper clamp arm 31 are rotated in the approaching direction by the left drive arm 51, the right drive arm 52, the left driven arm 53, and the right driven arm 54, so that the mobile terminal is clamped by the left upper clamp arm 21, the left lower clamp arm 22, the right upper clamp arm 31, and the right lower clamp arm 32.

The utility model discloses a mobile terminal support makes upper left arm lock 21, lower left arm lock 22, upper right arm lock 31, lower right arm lock 32 and support arm 40 realize linkage each other through left drive arm 51, right drive arm 52, left driven arm 53 and right driven arm 54, utilizes upper left arm lock 21, lower left arm lock 22, upper right arm lock 31 and lower right arm lock 32 centre gripping mobile terminal for the stability of centre gripping improves greatly.

Furthermore, the utility model discloses a support arm 40 of mobile terminal support adopts link structure, support arm 40's length can change, when not placing mobile terminal on supporting part 43, support arm 40, upper left arm lock 21, lower left arm lock 22, upper right arm lock 31 and lower right arm lock 32 are in the shrink state under the spring action of piece 60 that resets, supporting part 43 tightens up the bottom at supporting seat 10 this moment, upper left arm lock 21 and lower left arm lock 22 draw close each other and upper right arm lock 31 and lower right arm lock 32 draw close each other, make mobile terminal support's overall structure compact, small, therefore, when installing mobile terminal support at the well accuse bench of car, can avoid support arm 40 to block the air outlet.

Furthermore, the utility model discloses a mobile terminal support simple structure is favorable to reduction in production cost, and convenient operation, and the action of centre gripping mobile terminal can be accomplished to the one hand.

In this document, the terms upper, lower, left, right, front, rear and the like are used for defining the positions of the structures in the drawings and the positions of the structures relative to each other, and are only used for the clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims. It is also to be understood that the terms "first" and "second," etc., are used herein for descriptive purposes only and are not to be construed as limiting in number or order.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description in any form, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make some changes or modifications within the technical scope of the present invention without departing from the technical scope of the present invention, and the technical contents of the above disclosure can be utilized to make equivalent embodiments, but the technical contents of the present invention are not broken away from, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention all still belong to the protection scope of the technical solution of the present invention.

Claims

1. A mobile terminal support is characterized by comprising a supporting seat (10), a first clamping arm (20), a second clamping arm (30), a supporting arm (40), a linkage assembly (50) and a resetting piece (60);

the first clamping arm (20) comprises an upper left clamping arm (21) and a lower left clamping arm (22), and one ends of the upper left clamping arm (21) and the lower left clamping arm (22) are rotatably connected in the supporting seat (10);

the second clamping arm (30) is arranged opposite to the first clamping arm (20), the second clamping arm (30) comprises a right upper clamping arm (31) and a right lower clamping arm (32), and one end of the right upper clamping arm (31) and one end of the right lower clamping arm (32) are both rotatably connected in the supporting seat (10);

the supporting arm (40) is arranged below the supporting seat (10), the supporting arm (40) comprises a first connecting rod structure (41), a second connecting rod structure (42) and a supporting part (43), one end of the first connecting rod structure (41) is rotatably connected with the left lower clamping arm (22), the other end of the first connecting rod structure (41) is rotatably connected with the supporting part (43), one end of the second connecting rod structure (42) is rotatably connected with the right lower clamping arm (32), and the other end of the second connecting rod structure (42) is rotatably connected with the supporting part (43);

the linkage assembly (50) is arranged in the supporting seat (10), the linkage assembly (50) comprises a left driving arm (51), a right driving arm (52), a left driven arm (53) and a right driven arm (54), one end of the left driving arm (51) is rotatably connected with the left lower clamping arm (22), the other end of the left driving arm (51) is rotatably connected with one end of the left driven arm (53), the other end of the left driven arm (53) is rotatably connected with the left upper clamping arm (21), one end of the right driving arm (52) is rotatably connected with the right lower clamping arm (32), the other end of the right driving arm (52) is rotatably connected with one end of the right driven arm (54), and the other end of the right driven arm (54) is rotatably connected with the right upper clamping arm (31);

the reset piece (60) is arranged in the supporting seat (10) and is used for enabling the supporting part (43) to be tightened at the bottom of the supporting seat (10) and enabling the first clamping arm (20) and the second clamping arm (30) to be kept in an open state.

2. The mobile terminal bracket according to claim 1, wherein the linkage assembly (50) further comprises a left transmission slider (55) and a right transmission slider (56), a sliding slot (101) is formed in the supporting base (10) and is engaged with the left transmission slider (55) and the right transmission slider (56), the left transmission slider (55) and the right transmission slider (56) can slide left and right in the sliding slot (101), one end of each of the left driving arm (51) and the left driven arm (53) is rotatably connected to the left transmission slider (55), and one end of each of the right driving arm (52) and the right driven arm (54) is rotatably connected to the right transmission slider (56).

3. The mobile terminal bracket according to claim 2, wherein the left transmission slider (55) and the right transmission slider (56) are both provided with a first stop (501), the supporting base (10) is provided with a second stop (102) in the sliding slot (101), the reset member (60) is a spring, one end of the reset member (60) abuts against the first stop (501), and the other end of the reset member (60) abuts against the second stop (102).

4. The mobile terminal bracket according to claim 3, wherein the left transmission slider (55) and the right transmission slider (56) are each provided with two stoppers (502), and the reset member (60) is received between the two stoppers (502).

5. The mobile terminal support according to claim 4, wherein the stopper (502) and the first stopper (501) are provided with a stopper slope (503), and the left driving arm (51), the right driving arm (52), the left driven arm (53) and the right driven arm (54) are abutted against the stopper slope (503) when the mobile terminal (200) is not placed on the supporting portion (43).

6. The mobile terminal support according to claim 3, wherein the supporting base (10) comprises a front shell (11) and a rear shell (12) connected together, the sliding slot (101) and the stopper (502) are disposed on a side of the rear shell (12) facing the front shell (11), and a supporting rib (112) engaged with the left transmission slider (55) and the right transmission slider (56) is disposed on a side of the front shell (11) facing the rear shell (12).

7. The mobile terminal support according to claim 1, wherein the lower left arm (22) has a first tooth portion (221) arranged in a circular arc shape at an end thereof located in the cradle (10), and the lower right arm (32) has a second tooth portion (321) arranged in a circular arc shape at an end thereof located in the cradle (10), the first tooth portion (221) and the second tooth portion (321) being engaged with each other.

8. The mobile terminal holder according to claim 1, wherein the first link structure (41) has a third tooth portion (411) arranged in a circular arc shape at an end adjacent to the supporting portion (43), and the second link structure (42) has a fourth tooth portion (421) arranged in a circular arc shape at an end adjacent to the supporting portion (43), the third tooth portion (411) and the fourth tooth portion (421) being engaged with each other.

9. The mobile terminal bracket according to any of claims 1-8, characterized in that the end of the upper left clamping arm (21) located outside the support base (10) is provided with a first clamping portion (211) for clamping the mobile terminal (200), the end of the lower left clamping arm (22) located outside the support base (10) is provided with a second clamping portion (222) for clamping the mobile terminal (200), and the first clamping portion (211) and the second clamping portion (222) are arranged opposite to each other; one end of the upper right clamping arm (31) located outside the supporting seat (10) is provided with a third clamping portion (311) for clamping the mobile terminal (200), one end of the lower right clamping arm (32) located outside the supporting seat (10) is provided with a fourth clamping portion (322) for clamping the mobile terminal (200), and the third clamping portion (311) and the fourth clamping portion (322) are arranged oppositely up and down.

10. The mobile terminal holder according to claim 9, wherein the surfaces of the first holding portion (211), the second holding portion (222), the third holding portion (311) and the fourth holding portion (322) that cooperate with the mobile terminal (200) are all arc surfaces; soft rubber pads are arranged on the first clamping part (211), the second clamping part (222), the third clamping part (311), the fourth clamping part (322) and one side of the supporting part (43) matched with the mobile terminal (200).