CN219740441U - Folding type clamping mechanism of mobile phone support - Google Patents

Abstract

The utility model relates to a folding clamping mechanism of a mobile phone support, which comprises: the clamping seat, two clamping arms, button subassembly and locking subassembly, two clamping arms rotate with the both ends of clamping seat respectively and are connected, be equipped with first holding chamber and second holding chamber at the both ends of clamping seat, with be used for holding two clamping arms respectively, set up the third holding chamber in the centre of clamping seat, locking subassembly installs in the third holding intracavity, and can follow the horizontal extension in order to realize locking or unblock to two clamping arms in the third holding intracavity, button subassembly sets up on locking subassembly, button subassembly moves in order to drive locking subassembly horizontal migration flexible in the vertical direction along the third holding chamber. According to the utility model, the clamping arm is rotatably connected with the clamping seat, so that the clamping arm is folded into the accommodating groove of the clamping seat, the folding function is realized, and the integrated effect is improved; the clamping arm is matched with the locking assembly to realize automatic opening under the drive of the button assembly, and the operation is convenient.

Description

Folding type clamping mechanism of mobile phone support

Technical Field

The utility model relates to the technical field of mobile phone accessory products, in particular to a folding clamping mechanism of a mobile phone support.

Background

Along with the progress of science and technology, present smart mobile phone is rich in various functions, and people like to take a picture, live broadcast or watch video etc. with the cell-phone, when people take the time of taking the cell-phone for a long time, the hand can tired ache, influences the use experience, or because people's arm length's restriction, hand smart mobile phone is taken a picture often can not obtain satisfactory angle and composition, consequently, people now adopt cell phone stand to fix the cell-phone generally.

At present, an existing mobile phone support generally adopts an L-shaped structure with a clamping arm and a clamping seat as a whole, and after shrinkage, the clamping arm can vertically protrude out of the shell, occupies space and is easy to collide and damage.

Disclosure of Invention

The utility model provides a folding type clamping mechanism of a mobile phone support, which aims to solve the problems that the mobile phone support in the prior art adopts an L-shaped structure with a clamping arm and a clamping seat as a whole, the clamping seat can vertically protrude out of a shell after shrinkage, the space is occupied, the mobile phone support is easy to collide and damage, and the like.

A folding clamping mechanism of a mobile phone bracket, comprising: the clamping device comprises a clamping seat, a first clamping arm, a second clamping arm, a button assembly and a locking assembly, wherein the first clamping arm and the second clamping arm are respectively connected with two ends of the clamping seat in a rotating mode, a first accommodating cavity and a second accommodating cavity are formed in the two ends of the clamping seat and used for accommodating the first clamping arm and the second clamping arm respectively, a third accommodating cavity is formed in the middle of the clamping seat, the locking assembly is installed in the third accommodating cavity and can horizontally stretch and retract from the third accommodating cavity to the first accommodating cavity and the second accommodating cavity so as to lock or unlock the first clamping arm and the second clamping arm, and the button assembly is arranged on the locking assembly and moves in the vertical direction along the third accommodating cavity to drive the locking assembly to horizontally move and stretch and retract.

Further, as a preferable technical scheme, a first buckling part is arranged at the opposite end of the first clamping arm to the second clamping arm, a second buckling part is arranged at the opposite end of the second clamping arm to the first clamping arm, the locking component horizontally stretches out of the third accommodating cavity and is respectively buckled with the first buckling part and the second buckling part, so that the first clamping arm and the second clamping arm are respectively locked in the first accommodating cavity and the second accommodating cavity, and the locking component horizontally retracts into the third accommodating cavity and is respectively unlocked with the first buckling part and the second buckling part, so that the first clamping arm and the second clamping arm are respectively popped out of the first accommodating cavity and the second accommodating cavity.

Further, as a preferred technical scheme, the locking assembly comprises a first locking piece and a second locking piece which are oppositely arranged, the first locking piece and the second locking piece are connected through an elastic piece, the first locking piece and the second locking piece compress the elastic piece in the downward movement process of the button assembly to retract into the third accommodating cavity, and the first locking piece and the second locking piece are in the upward movement process of the button assembly to extend out of the third accommodating cavity through the reset of the elastic piece.

Further, as a preferred technical scheme, a first through groove is formed in the opposite side surface of the third accommodating cavity to the first accommodating cavity, a second through groove is formed in the opposite side surface of the third accommodating cavity to the second accommodating cavity, a first protruding portion capable of penetrating through the first through groove is arranged at the opposite end of the first locking piece to the opposite end of the second locking piece, the first protruding portion is matched with the first buckling portion, a second protruding portion capable of penetrating through the second through groove is arranged at the opposite end of the second locking piece to the opposite end of the first locking piece, the second protruding portion is matched with the second buckling portion, and the first protruding portion and the second protruding portion stretch out and draw back along the first through groove and the second through groove in the horizontal movement process.

Further, as a preferred technical scheme, the button assembly comprises a pressing part, a guide post and a guide part, wherein the pressing part is connected with the clamping seat through the guide post, the guide part is arranged at two sides of the opposite surface of the pressing part and the locking assembly, the guide part is matched with two end walls of the locking assembly, and the guide part is contacted with two end walls of the locking assembly in the vertical direction movement process so as to force the locking assembly to stretch along the horizontal direction.

Further, as a preferable technical scheme, the contact surface of the guide part and the locking component is in an inclined plane shape; or two end walls of the locking component are inclined; or the contact surface of the guide part and the locking assembly is in an inclined surface shape, and the two end walls of the locking assembly are in an inclined surface shape matched with the guide part.

Further, as a preferable technical scheme, the four guide portions are located at four corners of the pressing portion, and the four guide portions are respectively matched with two end wall ends of the locking assembly.

Further, as a preferable technical scheme, a third protruding portion extends from the end portion of the guiding portion towards the side wall direction of the third accommodating cavity, a third buckling portion matched with the third protruding portion is arranged in the third accommodating cavity, and the guiding portion is locked through the matched third protruding portion and the third buckling portion in the downward movement process.

Further, as a preferable technical scheme, a first limit groove and a second limit groove are arranged in the third accommodating cavity, the locking assembly moves along the first limit groove, the second limit groove is matched with the button assembly, and the third buckling part is located at two end parts of the second limit groove.

Further, as a preferable technical scheme, the opposite ends of the first clamping arm and the second clamping arm are hinged to the clamping seat through a first elastic reset assembly, and the opposite ends of the second clamping arm and the first clamping arm are hinged to the clamping seat through a second elastic reset assembly.

Further, as an preferable technical scheme, damping pieces are arranged on end faces of two side walls of the clamping seat, and the damping pieces are in damping contact with the mobile phone when the mobile phone is clamped by the first clamping arm and the second clamping arm.

Compared with the prior art, the technical scheme of the utility model has the beneficial effects that:

according to the folding type clamping mechanism of the mobile phone support, the clamping arm is rotatably connected with the clamping seat, so that the clamping arm is folded into the accommodating groove of the clamping seat, the folding function is realized, and meanwhile, the integrated effect is improved; the clamping arm is matched with the locking assembly to realize automatic opening under the drive of the button assembly, and the operation is convenient.

Drawings

Fig. 1 is an exploded view of a folding clamping mechanism of a mobile phone bracket provided by the utility model.

Fig. 2 is an exploded view of a folding clamping mechanism of a mobile phone bracket provided by the utility model.

Fig. 3 is a schematic diagram of a closing state of a folding clamping mechanism of a mobile phone bracket provided by the utility model.

Fig. 4 is a schematic diagram of an open state of a folding clamping mechanism of a mobile phone bracket according to the present utility model.

Fig. 5 is a schematic structural diagram of a locking assembly of a folding clamping mechanism of a mobile phone bracket according to the present utility model.

Fig. 6 is an exploded view of a locking assembly of a folding clamping mechanism of a mobile phone bracket.

Fig. 7 is a schematic diagram of a clamping seat of a folding clamping mechanism of a mobile phone bracket according to the present utility model.

Fig. 8 is a schematic diagram of an assembly structure of a locking assembly and a clamping seat of a folding clamping mechanism of a mobile phone bracket.

Fig. 9 is a schematic diagram of a button assembly of a folding clamping mechanism of a mobile phone bracket according to the present utility model.

Fig. 10 is a schematic diagram of an open state of a folding clamping mechanism of a mobile phone bracket according to the present utility model.

Detailed Description

The utility model is further described below in connection with the following detailed description.

The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if any, terms such as "upper," "lower," "left," "right," "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, only for convenience in describing the present utility model and simplifying the description, but do not indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus the words describing the positional relationship in the drawings are merely for illustration and not to be construed as limiting the present patent.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are primarily intended to distinguish between different devices, elements, or components that may or may not be identical or different in specific type and configuration and are not intended to indicate or imply relative importance or quantity of the indicated devices, elements, or components.

Example 1

This embodiment adopts the L shape structure of centre gripping arm and centre gripping palm as an organic whole for overcoming the cell phone stand among the prior art, and there is the shrink back centre gripping palm can perpendicular protrusion casing outside, occupation space and collision damage scheduling problem easily discloses a cell phone stand's receipts formula fixture, and this cell phone stand's receipts formula fixture can realize the receipts of centre gripping arm and close in order to improve integration effect.

Referring to fig. 1 and 2, an exploded view of a folding clamping mechanism of a mobile phone holder according to the present embodiment is shown.

As shown in fig. 1-2, a folding clamping mechanism of a mobile phone stand disclosed in this embodiment includes: the clamping seat 1, the first clamping arm 2, the second clamping arm 3, the button assembly 4 and the locking assembly 5, the first clamping arm 2 and the second clamping arm 3 are respectively connected with the two ends of the clamping seat 1 in a rotating mode, a first accommodating cavity 11 and a second accommodating cavity 12 are formed in the two ends of the clamping seat 1 and used for accommodating the first clamping arm 2 and the second clamping arm 3 respectively, a third accommodating cavity 13 is formed in the middle of the clamping seat 1, the locking assembly 5 is installed in the third accommodating cavity 13 and can horizontally stretch and retract from the inside of the third accommodating cavity 13 to the inside of the first accommodating cavity 11 and the inside of the second accommodating cavity 12 to lock or unlock the first clamping arm 2 and the second clamping arm 3, the button assembly 4 is arranged on the locking assembly 5, and the button assembly 4 moves in the vertical direction along the third accommodating cavity 13 to drive the locking assembly 5 to horizontally move and stretch and retract.

In a specific implementation process, please refer to fig. 3 and 4, which show a closed state and an open state of a folding clamping mechanism of a mobile phone support provided in this embodiment, and assume that the folding clamping mechanism of the mobile phone support is in a closed state, that is, a state shown in fig. 3, at this time, the locking assembly 5 horizontally extends from the third accommodating cavity 13 into the first accommodating cavity 11 and the second accommodating cavity 12 to lock the first clamping arm 2 and the second clamping arm 3 in the first accommodating cavity 11 and the second accommodating cavity 12; when unlocking is needed, the button assembly 4 is pressed down, when the button assembly 4 moves downwards along the third accommodating cavity, the driving locking assembly 5 is forced to retract horizontally to the third accommodating cavity 13, so that the locking assembly 5 is unlocked with the first clamping arm 2 and the second clamping arm 3, the first accommodating cavity 11 and the second accommodating cavity 12 are ejected out after unlocking, and the two ends of the clamping seat 1 are rotated by 90 degrees, namely, the locking assembly is perpendicular to the clamping seat 1, and the mobile phone is clamped and fixed.

This embodiment is a preferred embodiment, and the cooperation between the first clamping arm 2 and the second clamping arm 3 and the locking assembly 5 is specifically:

the opposite end of the first clamping arm 2 and the second clamping arm 3 is provided with a first buckling part 21, the opposite end of the second clamping arm 3 and the first clamping arm 2 is provided with a second buckling part 31, the locking component 5 is respectively buckled with the first buckling part 21 and the second buckling part 31 when extending out of the third accommodating cavity 13 along the horizontal direction so as to respectively lock the first clamping arm 2 and the second clamping arm 3 in the first accommodating cavity 11 and the second accommodating cavity 12, and the locking component 5 is respectively unlocked with the first buckling part 21 and the second buckling part 31 when retracting back into the third accommodating cavity 13 along the horizontal direction so as to respectively eject the first clamping arm 2 and the second clamping arm 3 out of the first accommodating cavity 11 and the second accommodating cavity 12.

Further, since the locking assembly 5 is retractable in the horizontal direction to lock and unlock the first clamping arm 2 and the second clamping arm 3, the first buckling portion 21 and the second buckling portion 31 may be provided as a limit groove matched with the end of the locking assembly 5, thereby achieving buckling with the end of the locking assembly 5.

In this embodiment, since the first clamping arm 2 and the second clamping arm 3 are respectively connected with two ends of the clamping seat 1 in a rotating manner, and can be locked in the first accommodating cavity 11 and the second accommodating cavity 12 through the locking component 5, the folding function is realized, and the integration effect is improved; the button assembly 4 is matched with the locking assembly 5 to unlock the first clamping arm 2 and the second clamping arm 3, so that the first clamping arm 2 and the second clamping arm are ejected out of the first accommodating cavity 11 and the second accommodating cavity 12, automatic opening is realized, and the operation is convenient; accordingly, the opposite end of the first clamping arm 2 to the second clamping arm 3 is hinged to the clamping seat 1 through the first elastic reset component 6, and the opposite end of the second clamping arm 3 to the first clamping arm 2 is hinged to the clamping seat 1 through the second elastic reset component 7.

Preferably, the first elastic reset component 6 and the second elastic reset component 7 adopt torsion springs, the first elastic reset component 6 and the second elastic reset component 7 are arranged at two end parts of the clamping seat 1, a first installation through hole 22 matched with the first elastic reset component 6 is formed at the opposite end of the first clamping arm 2 and the opposite end of the second clamping arm 3, the first installation through hole 22 of the first clamping arm 2 is sleeved on the first elastic reset component 6, so that the first clamping arm 2 is hinged with the clamping seat 1 through the first elastic reset component 6, likewise, a second installation through hole 32 matched with the second elastic reset component 7 is formed at the opposite end of the second clamping arm 3 and the opposite end of the first clamping arm 2, and the second installation through hole 32 of the second clamping arm 3 is sleeved on the second elastic reset component 7, so that the second clamping arm 3 is hinged with the clamping seat 1 through the second elastic reset component 7, and the first clamping arm 2 and the second clamping arm 3 are respectively unlocked with the locking component 5, and the first clamping arm 2 and the second clamping arm 3 are respectively hinged with the clamping seat 1 along the first elastic reset component 6 and the second clamping seat 1, namely, the second clamping seat is fixed vertically, and the mobile phone is fixed to the clamping seat 1.

As a preferred embodiment, the first clamping arm 2 and the second clamping arm 3 have the same structure, and for better realizing the clamping effect on the mobile phone, the clamping surfaces of the first clamping arm 2 and the second clamping arm 3 are designed to have a certain radian shape, so that the clamped mobile phone is more stable, and a better shooting effect is realized.

In some embodiments, the clamping surfaces of the first clamping arm 2 and the second clamping arm 3 can be made of silica gel materials with damping and anti-skid effects, so that better clamping of the mobile phone is achieved.

Example 2

The embodiment discloses a folding type clamping mechanism of a mobile phone support, which further discloses a structure of a locking assembly 5 and a matching structure of the locking assembly 5 and a clamping seat 1 on the basis of embodiment 1.

Referring to fig. 5 and 6, a block diagram and an exploded view of a locking assembly 5 of a retractable clamping mechanism of a mobile phone bracket according to the present embodiment are shown respectively.

The locking assembly 5 disclosed in this embodiment, as shown in fig. 5-6, includes a first locking member 51 and a second locking member 52 that are disposed opposite to each other, where the first locking member 51 and the second locking member 52 are connected by an elastic member 53, and the first locking member 51 and the second locking member 52 compress the elastic member 53 to retract into the third accommodating cavity 13 during the downward movement of the button assembly 4, and the first locking member 51 and the second locking member 52 are reset by the elastic member 53 during the upward movement of the button assembly 4 to extend out of the third accommodating cavity 13.

As a preferred embodiment, the elastic member 53 is a spring, so that a first latching portion 512 capable of accommodating the elastic member 53 is provided at an opposite end of the first locking member 51 to the second locking member 52, a second latching portion 522 capable of accommodating the elastic member 53 is provided at an opposite end of the second locking member 52 to the first locking member 51, and both ends of the elastic member 53 are latched in the first latching portion 512 and the second latching portion 522, respectively.

The first and second latching portions 512 and 522 are not limited to the latching grooves or the limiting holes, as long as the spring can be limited.

In this embodiment, as shown in fig. 7, a first through groove 14 is disposed on a side of the third accommodating cavity 13 opposite to the first accommodating cavity 11, a second through groove 15 is disposed on a side of the third accommodating cavity 13 opposite to the second accommodating cavity 12, a first protrusion 511 passing through the first through groove 14 is disposed at a back end of the first locking element 51 opposite to the second locking element 52, the first protrusion 511 is matched with the first locking element 21, a second protrusion 521 passing through the second through groove 15 is disposed at a back end of the second locking element 52 opposite to the first locking element 51, the second protrusion 521 is matched with the second locking element 31, and the first protrusion 511 and the second protrusion 521 stretch along the first through groove 14 and the second through groove 15 in a horizontal movement process.

As a preferred embodiment, the first locking member 51 and the second locking member 52 have the same structure and are convex, so that the first locking member 51 and the second locking member 52 are symmetrically disposed, the first protrusion 511 and the second protrusion 521 are distal ends thereof, the first detent 512 and the second detent 522 are located on two arms thereof, respectively, and the elastic member 53 is also disposed in two, so as to cooperate with the locking assembly 5 to achieve a better telescopic function.

In addition, a first limiting groove 132 is disposed in the third accommodating cavity 13, and the first limiting groove 132 is matched with two arms of the first locking member 51 and the second locking member 52, so that the locking assembly 5 can better perform horizontal telescopic movement along the first limiting groove 132 to prevent dislocation, as shown in fig. 8.

Example 3

The embodiment discloses a folding type clamping mechanism of a mobile phone support, which further discloses a structure of a button assembly 4 and a matching structure of the button assembly 4, a locking assembly 5 and a clamping seat 1 on the basis of embodiments 1 and 2.

Referring to fig. 9, a structure diagram of a button assembly 4 of a retractable clamping mechanism of a mobile phone holder according to the present embodiment is shown.

The button assembly 4 disclosed in this embodiment, as shown in fig. 9, includes a pressing portion 41, a guide post 42 and a guide portion 43, where the pressing portion 41 is connected with the clamping seat 1 through the guide post 42, the guide portion 43 is disposed on two sides of an opposite surface of the pressing portion 41 to the locking assembly 5, the guide portion 43 is matched with two end walls of the locking assembly 5, and the guide portion 43 contacts with two end walls of the locking assembly 5 during movement along a vertical direction to force the locking assembly 5 to stretch along a horizontal direction.

Specifically, since the locking assembly 5 includes the first locking piece 51 and the second locking piece 52 which are identical in structure and disposed opposite to each other, the guide portion 43 is in contact with the end walls of the first locking piece 51 and the second locking piece 52, respectively.

As a preferred embodiment, in order to allow the latch assembly 5 to horizontally expand and contract during the vertical movement of the button assembly 4, it is necessary to set the contact surfaces of the guide portion 43 and the latch assembly 5 in a slant shape, or set both end walls of the latch assembly 5 in a slant shape, or set the contact surfaces of the guide portion 43 and the latch assembly 5 in a slant shape, while setting both end walls of the latch assembly 5 in a slant shape matching the guide portion 43, that is, set the end walls of the first latch member 51 and the second latch member 52 in a slant shape.

In this embodiment, as a preferred embodiment, the contact surface between the guide portion 43 and the locking assembly 5 is set to be inclined, and both end walls of the locking assembly 5 are set to be inclined matching with the guide portion 43, that is, the end walls of the first locking piece 51 and the second locking piece 52 are set to be inclined, so that the guide portion 43 and the first locking piece 51 and the second locking piece 52 achieve better matching.

In addition, based on the structures of the first locking piece 51 and the second locking piece 52, the number of the guide parts 43 is four, the four guide parts 43 are positioned at four corners of the pressing part 41, and the four guide parts 43 are matched with the locking assembly 5, namely, the two end wall ends of the first locking piece 51 and the second locking piece 52 respectively.

As a preferred embodiment, a third protruding portion 431 extends from an end portion of the guide portion 43 toward a side wall of the third accommodating cavity 13, and a third buckling portion 131 matched with the third protruding portion 431 is provided in the third accommodating cavity 13, and the guide portion 43 is locked by the matched third protruding portion 431 and the third buckling portion 131 in a downward movement process; meanwhile, a second limiting groove 133 is arranged in the third accommodating cavity 13, the second limiting groove 133 is matched with the button assembly 4, the third buckling part 131 is located at two end parts of the second limiting groove 133, and as shown in fig. 7, the locking of the clamping seat 1 is achieved while the button assembly 5 is matched with the locking assembly 5.

In the embodiment, the first clamping arm 2 and the second clamping arm 3 are unlocked by matching the button assembly 5 with the locking assembly 5, so that the first clamping arm 2 and the second clamping arm 3 are automatically opened.

Example 4

The embodiment discloses a folding fixture of cell phone stand, and it is on the basis of embodiment 1-3, has further optimized the structure of grip slipper 1, makes it cooperate first centre gripping arm 2 and second centre gripping arm 3 can be better realization to the centre gripping effect of cell phone.

Referring to fig. 10, the structure of the holder 1 is optimized, and the damping members 16 are added on the upper end surfaces of the two side walls of the holder 1, so that the damping effect between the holder 1 and the mobile phone is increased, and when the mobile phone is clamped by matching the first clamping arm 2 and the second clamping arm 3, the mobile phone is prevented from sliding and shifting or falling, and the anti-slip function is realized while the mobile phone is clamped.

As a preferred embodiment, the damping member 16 may be a silica gel strip, and at the same time, a clamping groove capable of accommodating the silica gel strip is provided on the upper end surfaces of the two side walls of the clamping seat 1, and the damping member 16 is embedded in the clamping groove to prevent the damping member from falling.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (11)

1. A folding fixture of cell phone stand, its characterized in that includes: clamping seat (1), first centre gripping arm (2), second centre gripping arm (3), button subassembly (4) and locking subassembly (5), first centre gripping arm (2) and second centre gripping arm (3) respectively with the both ends rotation of clamping seat (1) are connected be equipped with first holding chamber (11) and second holding chamber (12) at the both ends of clamping seat (1), in order to be used for the holding respectively first centre gripping arm (2) and second centre gripping arm (3) set up third holding chamber (13) in the centre of clamping seat (1), locking subassembly (5) are installed in third holding chamber (13), and can follow in third holding chamber (13) to first holding chamber (11) and second holding chamber (12) are interior horizontal flexible in order to realize to first centre gripping arm (2) and second holding arm (3) are locked or are unblocked, button subassembly (4) set up on locking subassembly (5), button subassembly (4) are in order to drive in the horizontal movement of vertical movement of third holding chamber (13) in order to stretch out and draw back.

2. The folding clamping mechanism of a mobile phone holder according to claim 1, wherein a first buckling position portion (21) is arranged at an opposite end of the first clamping arm (2) to the second clamping arm (3), a second buckling position portion (31) is arranged at an opposite end of the second clamping arm (3) to the first clamping arm (2), and the locking assembly (5) is respectively buckled with the first buckling position portion (21) and the second buckling position portion (31) when horizontally stretching out of the third accommodating cavity (13), so that the first clamping arm (2) and the second clamping arm (3) are respectively locked in the first accommodating cavity (11) and the second accommodating cavity (12), and the locking assembly (5) is respectively unlocked with the first buckling position portion (21) and the second buckling position portion (31) when horizontally retracting the third accommodating cavity (13), so that the first clamping arm (2) and the second clamping arm (3) are respectively ejected out of the first accommodating cavity (11) and the second accommodating cavity (12).

3. The folding clamping mechanism of a mobile phone holder according to claim 2, wherein the locking assembly (5) comprises a first locking piece (51) and a second locking piece (52) which are oppositely arranged, the first locking piece (51) and the second locking piece (52) are connected through an elastic piece (53), the elastic piece (53) is compressed by the first locking piece (51) and the second locking piece (52) during the downward movement of the button assembly (4) so as to retract into the third accommodating cavity (13), and the first locking piece (51) and the second locking piece (52) are reset by the elastic piece (53) during the upward movement of the button assembly (4) so as to extend out of the third accommodating cavity (13).

4. A folding clamping mechanism of a mobile phone holder according to claim 3, characterized in that a first through groove (14) is formed in the opposite side surface of the third accommodating cavity (13) to the first accommodating cavity (11), a second through groove (15) is formed in the opposite side surface of the third accommodating cavity (13) to the second accommodating cavity (12), a first protruding portion (511) capable of penetrating through the first through groove (14) is formed at the opposite end of the first locking piece (51) to the second locking piece (52), the first protruding portion (511) is matched with the first buckling portion (21), a second protruding portion (521) capable of penetrating through the second through groove (15) is formed at the opposite end of the second locking piece (52) to the opposite end of the first locking piece (51), the second protruding portion (521) is matched with the second buckling portion (31), and the first protruding portion (511) and the second protruding portion (521) move horizontally along the first through groove (521) and the second through groove (15).

5. The folding clamping mechanism of a mobile phone holder according to claim 1, wherein the button assembly (4) comprises a pressing part (41), a guide post (42) and a guide part (43), the pressing part (41) is connected with the clamping seat (1) through the guide post (42), the guide part (43) is arranged on two sides of the opposite surface of the pressing part (41) to the locking assembly (5), the guide part (43) is matched with two end walls of the locking assembly (5), and the guide part (43) is contacted with two end walls of the locking assembly (5) in the process of moving along the vertical direction so as to force the locking assembly (5) to stretch along the horizontal direction.

6. The folding clamping mechanism of a mobile phone holder according to claim 5, wherein the contact surface of the guide part (43) and the locking component (5) is in a bevel shape; or the two end walls of the locking component (5) are inclined; alternatively, the contact surface of the guide part (43) and the locking assembly (5) is in an inclined surface shape, and the two end walls of the locking assembly (5) are in an inclined surface shape matched with the guide part (43).

7. The folding clamping mechanism of a mobile phone holder according to claim 5, wherein the number of the guide portions (43) is four, the four guide portions (43) are located at four corners of the pressing portion (41), and the four guide portions (43) are respectively matched with two end wall ends of the locking assembly (5).

8. The folding clamping mechanism of the mobile phone support according to claim 5, wherein a third protruding portion (431) extends from an end portion of the guiding portion (43) towards a side wall direction of the third accommodating cavity (13), a third buckling portion (131) matched with the third protruding portion (431) is arranged in the third accommodating cavity (13), and the guiding portion (43) is locked through the matched third protruding portion (431) and the third buckling portion (131) in a downward movement process.

9. The folding clamping mechanism of a mobile phone holder according to claim 8, wherein a first limiting groove (132) and a second limiting groove (133) are arranged in the third accommodating cavity (13), the locking assembly (5) moves along the first limiting groove (132), the second limiting groove (133) is matched with the button assembly (4), and the third buckling part (131) is located at two end parts of the second limiting groove (133).

10. The folding clamping mechanism of a mobile phone holder according to claim 1, wherein the opposite ends of the first clamping arm (2) and the second clamping arm (3) are hinged to the clamping seat (1) through a first elastic reset assembly (6), and the opposite ends of the second clamping arm (3) and the first clamping arm (2) are hinged to the clamping seat (1) through a second elastic reset assembly (7).

11. The folding clamping mechanism of the mobile phone support according to claim 1, wherein damping pieces (16) are arranged on end faces of two side walls of the clamping seat (1), and the damping pieces (16) are in damping contact with the mobile phone when the mobile phone is clamped by the first clamping arm (2) and the second clamping arm (3).