CN219389137U - Telescopic fixed support - Google Patents

Abstract

A retractable fixing bracket comprising: the device comprises a connecting piece, a telescopic rod, a clamping mechanism and a locking piece. The connecting piece is equipped with first guide slot along the axial, is equipped with the adapter on the connecting piece, and the adapter is used for being connected with the chuck. One end of the telescopic rod is slidably arranged in the first guide groove, and the other end of the telescopic rod is positioned outside the connecting piece. The clamping mechanism is arranged between the telescopic rod and the connecting piece, the clamping mechanism can move towards one side close to or far away from the telescopic rod, a first tooth part is arranged on the telescopic rod, a second tooth part is arranged on the clamping mechanism, and the first tooth part and the second tooth part are used for being meshed with each other to limit the position of the telescopic rod relative to the connecting piece. The locking piece is arranged on the connecting piece and used for moving the clamping mechanism to the side close to the telescopic rod so as to engage the first tooth part with the second tooth part. The fixed bolster that this application designed realizes chucking fixed effect through the structure between the tooth, effectively ensures the installation fastness of support, and then ensures the safety in utilization of electronic product on it.

Description

Telescopic fixed support

Technical Field

The application relates to the technical field of supports for mobile terminals such as mobile phones and flat plates, in particular to a telescopic fixing support.

Background

With the development of technology, electronic products are increasingly classified, which brings convenience to the life of people, such as mobile phones, tablet computers or electronic book readers. People can carry some electronic products to play amusement while traveling to avoid boring and boring for a long time. On vehicles such as automobiles, in order to liberate people's both hands and bring better experience for the passenger, the design has the fixed bolster that can fix electronic product. The fixing support is arranged on the metal rod of the saddle headrest, and the electronic product is clamped and fixed on the clamping head on the fixing support, so that both hands of people can be liberated. However, the telescopic fixing brackets designed at present all rely on the spring to stretch to realize the telescopic effect. Due to long-time use of the spring structure, on one hand, the risk of breakage can be increased, and on the other hand, the elasticity of the spring can be affected negatively, so that the support cannot be fixed firmly, and the risk of falling of an electronic product is increased.

Disclosure of Invention

The application provides a telescopic fixed bolster, its main aim at improves the installation fastness of support.

In one embodiment, a retractable fixing bracket is provided, including:

the connecting piece is provided with a first guide groove along the axial direction, and is provided with an adapter body which is used for being in rotary connection with a chuck for clamping and fixing the electronic product;

one end of the telescopic rod is slidably arranged in the first guide groove, the other end of the telescopic rod is positioned outside the connecting piece, and clamping parts are arranged at one ends, far away from each other in the axial direction, of the telescopic rod and the connecting piece;

the clamping mechanism is arranged between the telescopic rod and the connecting piece, the clamping mechanism can move towards one side close to or far away from the telescopic rod, a first tooth part is arranged on the telescopic rod, a second tooth part is arranged on the clamping mechanism, and the first tooth part and the second tooth part are used for being meshed to limit the position of the telescopic rod relative to the connecting piece; and

the locking piece is arranged on the connecting piece and used for enabling the clamping mechanism to move towards one side close to the telescopic rod so as to enable the first tooth portion to be meshed with the second tooth portion.

In an embodiment, the clamping mechanism comprises a clamping seat and a first elastic piece, wherein the clamping seat is close to the second tooth part on one side of the telescopic rod, the first elastic piece is arranged on the clamping seat and is used for assisting the clamping seat to move away from one side of the telescopic rod so as to release the engagement of the first tooth part and the second tooth part.

In one embodiment, the clamping seat is in a rectangular frame structure, and the rectangular frame structure comprises two side plates and a bottom plate which are parallel to each other; the bottom plate is sunken towards one side far away from the telescopic rod, and the second tooth part is arranged on the bottom plate; the side plates on two sides of the bottom plate are respectively provided with an installation piece, the installation pieces on two sides of the clamping seat are respectively provided with the first elastic piece, and two ends of the first elastic piece are respectively abutted with the connecting piece and the clamping seat; the locking piece is used for extruding the clamping seat so as to enable the first tooth part and the second tooth part to be meshed.

In one embodiment, the connecting piece is provided with a first assembling groove, and the clamping seat is positioned in the first assembling groove; the locking part is arranged on the locking part and is used for being arranged between the clamping seat and the connecting part along the axial direction of the connecting part in an interference mode.

In an embodiment, the clamping mechanism further comprises a second elastic piece, the connecting piece is provided with a second assembly groove, the second elastic piece is located in the second assembly groove, and two ends of the second elastic piece are respectively abutted to the second assembly groove and the clamping seat which are distributed along the axial direction of the connecting piece.

In one embodiment, the connecting piece is provided with a buckling hole, one end of the locking piece is rotationally connected with the connecting piece at the buckling hole, and the other end of the locking piece is provided with a poking buckling part.

In one embodiment, the connecting piece is provided with a first installation body, the first installation body is provided with a rotating shaft, and the locking piece is rotationally connected with the rotating shaft; the first installation body is provided with a first limiting part, the locking piece is provided with a second limiting part, and the first limiting part and the second limiting part are used for being matched to limit the position of the locking piece relative to the first installation body.

In one embodiment, the connecting piece comprises a bracket main body and a cover body, the locking piece is arranged on the bracket main body, and the clamping part is arranged at one end of the telescopic rod, which is axially far away from the bracket main body, respectively.

In one embodiment, the device further comprises a second installation body, the second installation body is arranged on the connecting piece, and the first guide groove is formed in the second installation body.

In one embodiment, a second guide groove is formed in one side, far away from the telescopic rod, of the second installation body, a limiting block is arranged at one end, close to the connecting piece, of the telescopic rod, and the limiting block is movably arranged in the second guide groove.

According to the telescopic fixing support in the above embodiment, the clamping mechanism is disposed between the connecting piece and the telescopic rod, the telescopic rod is slidably disposed in the first guide groove, the telescopic rod is provided with the first tooth portion, the clamping mechanism is provided with the second tooth portion, and the first tooth portion and the second tooth portion are used for being engaged with each other to limit the position of the telescopic rod relative to the connecting piece. The locking piece is used for moving the clamping mechanism to one side close to the telescopic link so as to enable the first tooth part to be meshed with the second tooth part, so that the fixed support is in a locking state, and the telescopic link cannot stretch out and draw back relative to the connecting piece. When the clamping mechanism moves to one side far away from the telescopic rod, the first tooth part and the second tooth part can be used for releasing the engagement relation, so that the fixed support is in an unlocking state, and the telescopic rod can stretch and retract relative to the connecting piece to adjust the overall axial length of the fixed support. The fixed bolster that this application designed realizes chucking fixed effect through the structure between the tooth, effectively ensures the installation fastness of support, and then ensures the safety in utilization of electronic product on it.

Drawings

FIG. 1 is a schematic perspective view of a telescopic fixed bracket according to an embodiment of the present application;

FIG. 2 is a schematic view of an exploded view of a retractable fixing bracket according to one embodiment of the present application;

FIG. 3 is a schematic view of an alternative view of the telescoping fixed support of FIG. 2;

FIG. 4 is a schematic perspective view of a clamping mechanism according to an embodiment of the present disclosure;

FIG. 5 is a schematic view of a partially exploded construction of a telescoping fixed support in one embodiment of the present application;

FIG. 6 is a schematic plan view of the telescoping fixed bracket of FIG. 5;

FIG. 7 is an enlarged schematic view of FIG. 2A;

FIG. 8 is a schematic cross-sectional view of a retractable fixing bracket in an unlocked state according to an embodiment of the present application;

fig. 9 is a schematic cross-sectional view of a telescopic fixing bracket in a locked state according to an embodiment of the present application.

Reference numerals illustrate: 10. the connector comprises a bracket body 111, an adapter 112, a first assembly groove 113, a second assembly groove 114, a buckling hole 115, a first installation body 1151, a first limit part 116, a rotary shaft 117, a telescopic hole 12, a cover 20, a telescopic rod 21, a first tooth part 22, a limit block 30, a clamping mechanism 31, a clamping seat 311, a second tooth part 312, an installation part 313, a connecting column 32, a first elastic part 33, a second elastic part 40, a locking part 41, a locking part 42, a toggle buckling part 43, a second limit part 50, a second installation body 51, a first guide groove 52 and a second guide groove.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings by way of specific embodiments. Wherein like elements in different embodiments are numbered alike in association. In the following embodiments, numerous specific details are set forth in order to provide a better understanding of the present application. However, one skilled in the art will readily recognize that some of the features may be omitted, or replaced by other elements, materials, or methods in different situations. In some instances, some operations associated with the present application have not been shown or described in the specification to avoid obscuring the core portions of the present application, and may not be necessary for a person skilled in the art to describe in detail the relevant operations based on the description herein and the general knowledge of one skilled in the art.

Furthermore, the described features, operations, or characteristics of the description may be combined in any suitable manner in various embodiments. Also, various steps or acts in the method descriptions may be interchanged or modified in a manner apparent to those of ordinary skill in the art. Thus, the various orders in the description and drawings are for clarity of description of only certain embodiments, and are not meant to be required orders unless otherwise indicated.

The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated.

As shown in fig. 1-9, in one embodiment, a retractable fixation bracket includes: connector 10, telescopic rod 20, clamping mechanism 30 and locking member 40.

The connecting piece 10 is provided with a first guide groove 51 along the axial direction, the connecting piece 10 is provided with an adapter body 111, and the adapter body 111 is used for being rotationally connected with a chuck for clamping and fixing the electronic product. The adaptor 111 may be a 360 ° rotatable ball assembly, and the adaptor 111 may be integrally fixed to the connector 10 or detachably connected to the connector 10. The electronic product is a mobile phone, a tablet, an electronic book reader and the like.

One end of the telescopic rod 20 is slidably arranged in the first guide groove 51, the other end of the telescopic rod is positioned outside the connecting piece 10, and clamping parts are arranged at the ends, away from each other in the axial direction, of the telescopic rod 20 and the connecting piece 10. The clamping part is used for being clamped on a support, such as a metal rod of a seat headrest. The clamping part can be further provided with a buffer pad, such as a buffer pad made of silica gel, so as to avoid contact scratch with the support.

The clamping mechanism 30 is arranged between the telescopic rod 20 and the connecting piece 10, the clamping mechanism 30 can move towards the side close to or away from the telescopic rod 20, a first tooth part 21 is arranged on the telescopic rod 20 on the side close to the clamping mechanism 30, a second tooth part 311 is arranged on the clamping mechanism 30 on the side close to the telescopic rod 20, and the first tooth part 21 and the second tooth part 311 are used for being meshed with each other to limit the position of the telescopic rod 20 relative to the connecting piece 10.

A locking member 40 is provided on the link 10, and the locking member 40 is used to move the clamping mechanism 30 to a side close to the telescopic rod 20 so as to engage the first tooth portion 21 and the second tooth portion 311.

With the telescopic fixing bracket in the above embodiment, the clamping mechanism 30 is provided between the connector 10 and the telescopic rod 20, the telescopic rod 20 is slidably disposed in the first guide groove 51, the telescopic rod 20 is provided with the first tooth portion 21, the clamping mechanism 30 is provided with the second tooth portion 311, and the first tooth portion 21 and the second tooth portion 311 are used for being engaged with each other to limit the position of the telescopic rod 20 relative to the connector 10. The locking member 40 is used for moving the clamping mechanism 30 to a side close to the telescopic rod 20 so as to engage the first tooth portion 21 and the second tooth portion 311, so that the fixing support is in a locking state, and the telescopic rod 20 cannot be telescopic relative to the connecting member 10. When the clamping mechanism 30 moves to the side far away from the telescopic rod 20, the first tooth part 21 and the second tooth part 311 can be disengaged, so that the fixed bracket is in an unlocked state, and the telescopic rod 20 can stretch and retract relative to the connecting piece 10 to adjust the overall axial length of the fixed bracket. The fixed bolster that this application designed realizes chucking fixed effect through the structure between the tooth, effectively ensures the installation fastness of support, and then ensures the safety in utilization of electronic product on it.

As shown in fig. 1 to 4, the clamping mechanism 30 includes a clamping seat 31 and a first elastic member 32, a second tooth portion 311 is disposed on a side of the clamping seat 31 close to the telescopic rod 20, the first elastic member 32 is disposed on the clamping seat 31, and the first elastic member 32 is used for assisting the clamping seat 31 to move toward a side far from the telescopic rod 20 so as to release the engagement of the first tooth portion 21 and the second tooth portion 311.

Specifically, as shown in fig. 4, the clamping seat 31 is a rectangular frame structure, and the rectangular frame structure includes two side plates and a bottom plate that are parallel to each other. The bottom plate is recessed toward a side away from the telescopic rod 20, and a second tooth portion 311 is provided on the bottom plate. The side plates on two sides of the bottom plate are respectively provided with a mounting piece, the mounting pieces on two sides of the clamping seat 31 are respectively provided with a first elastic piece 32, and two ends of the first elastic piece 32 are respectively abutted against the connecting piece 10 and the clamping seat 31. The locking member 40 is used to press the clamping seat 31 to engage the first tooth portion 21 with the second tooth portion 311. The clamping seat 31 of the rectangular frame body structure is well wrapped on the telescopic rod 20, so that the contact area between the clamping seat and the telescopic rod 20 is increased, the connection stability of the telescopic rod 20 is further improved, and the telescopic rod 20 or the clamping seat 31 is prevented from being shifted. The mounting pieces 312 are respectively arranged on two sides of the clamping seat 31, the mounting pieces 312 are plate-shaped, block-shaped, groove-shaped and the like, the first elastic pieces 32 are respectively arranged on the mounting pieces 312 on two sides of the clamping seat 31, enough mounting positions are provided for the first elastic pieces 32, and the elastic effect of the first elastic pieces 32 can be conveniently exerted. The two ends of the first elastic member 32 along the radial direction of the connecting member 10 are respectively abutted against the connecting member 10 and the clamping seat 31, so that certain elastic potential energy can be stored conveniently. The first elastic member 32 is specifically a spring, an elastic sheet, or a torsion spring. When the locking member 40 presses the clamping seat 31 toward the telescopic rod 20, the first elastic member 32 can store more energy so as to restore the position of the clamping seat 31 (i.e., assist the clamping seat 31 to move toward the side away from the telescopic rod 20). The clamping seat 31 with the rectangular frame body structure can also play a limiting role on the clamping seat 31, for example, taking fig. 9 as an example, so as to avoid the front-back direction deviation of the clamping seat 31.

As shown in fig. 5 and 9, the connector 10 is provided with a first assembling groove 112, and the clamping seat 31 is located in the first assembling groove 112. The locking member 40 is provided with a locking portion 41, and the locking portion 41 is configured to be disposed between the clamping seat 31 and the connecting member 10 in the axial direction of the connecting member 10 in an interference manner. Taking fig. 9 as an example, the first assembling groove 112 is provided, so as to effectively limit the moving range or position of the clamping seat 31, for example, limit the left and right positions of the clamping seat 31 relative to the telescopic rod 20. A gap is provided between the chucking seat 31 and the coupling member 10 along the axial direction of the coupling member 10 to facilitate insertion of the locking portion 41. The locking part 41 is arranged between the clamping seat 31 and the connecting piece 10 along the axial direction of the connecting piece 10 in an interference manner, so that the position of the clamping seat 31 can be limited in an auxiliary manner, and a certain position fixing effect can be achieved on the locking piece 40. When it is desired to change the position of the locking member 40, the user pulls out the locking member 40 with force.

As shown in fig. 5, the clamping mechanism 30 further includes a second elastic member 33, the connecting member 10 is provided with a second assembly groove 113, the second elastic member 33 is disposed in the second assembly groove 113, and two ends of the second elastic member 33 are respectively abutted against the second assembly groove 113 and the clamping seat 31 distributed along the axial direction of the connecting member 10. The second elastic member 33 is specifically a spring. Through the second elastic member 33, when the locking portion 41 is inserted into the gap between the clamping seat 31 and the connecting member 10, a certain elastic potential energy can be stored, and meanwhile, the second elastic member 33 after storing the elastic potential energy can give the clamping seat 31 an axial force along the connecting member 10, and the clamping seat 31 can give the telescopic rod 20 an axial force along the connecting member 10, so as to enhance the clamping and fixing effect between the telescopic rod 20 and the clamping seat 31. Wherein, for facilitating the assembly of the fixing support, the end face of the clamping seat 31 is provided with connecting columns 313 consistent with the number of the second elastic pieces 33, the axes of the connecting columns 313 and the axes of the telescopic rods 20 are parallel, one end of the second elastic piece 33 is fixedly sleeved on the connecting columns 313, and the other end of the second elastic piece 33 is used for being abutted against the inner wall of the second assembly groove 113.

As shown in fig. 7, the connecting member 10 is provided with a buckling hole 114, one end of the locking member 40 is rotatably connected with the connecting member 10 at the buckling hole 114, and the other end of the locking member 40 is provided with a toggle buckling part 42. Specifically, the connecting piece 10 is provided with a first installation body 115, the first installation body 115 is provided with a rotating shaft 116, and the locking piece 40 is rotationally connected with the rotating shaft 116. The first mounting body 115 is provided with a first limiting portion 1151, the locking member 40 is provided with a second limiting portion 43, and the first limiting portion 1151 and the second limiting portion 43 are used for being matched to limit the position of the locking member 40 relative to the first mounting body 115.

The first mounting body 115 is a pair of opposite plates on the connecting member 10 disposed at two sides of the buckling hole 114, and the rotating shaft 116 is fixed between the pair of opposite plates by using pins, for example. One end of the locking member 40 is rotatably connected with the rotating shaft 116, and the other end is provided with a toggle button portion 42, and the locking member 40 can be easily rotated by toggling the toggle button portion 42, similar to the lever principle. The first and second limiting portions 1151 and 43 can further limit the position of the locking member 40 with respect to the first mounting body 115. Specifically, as shown in fig. 7, the first limiting portion 1151 is a protruding structure on the vertical plate, and the second limiting portion 43 is a cross-shaped groove structure formed on a side surface of the locking member 40. Typically, retaining member 40 rotates approximately 90 when retaining member 40 is transitioned between the secured and unlocked states of the stationary support. When the locking member 40 is in the locked state, a groove on the second limiting portion 43 cooperates with a protrusion on the vertical plate to limit the position of the locking member 40 relative to the telescopic rod 20. When the locking member 40 is in the unlocked state, the other groove on the second limiting portion 43 cooperates with the protruding structure on the vertical plate to limit the position of the locking member 40 relative to the telescopic rod 20. In other embodiments, the first limiting portion 1151 may be a groove structure, the second limiting portion 43 may be a protrusion structure, or the first limiting portion 1151 and the second limiting portion 43 may be magnetically attractable structures.

As shown in fig. 2, the connector 10 includes a bracket body 11 and a cover 12, a locking member 40 is provided on the bracket body 11, and a retaining portion is provided at each of axially distant ends of the telescopic rod 20 and the bracket body 11. The bracket main body 11 is similar to a semi-cylindrical shell structure, the cover body 12 is also similar to a semi-cylindrical shell structure, and the bracket main body 11 and the cover body 12 are detachably fixed together to form the complete cylindrical connecting piece 10. The shape of the connector 10 is only exemplified here and should not be construed as limiting the present application. The bracket body 11 is provided with a fastening hole 114, a first fitting groove 112, and a second fitting groove 113, and a first mounting body 115. A telescopic hole 117 is formed at one end of the bracket body 11 near the telescopic rod 20, so that the telescopic rod 20 can be conveniently telescopic relative to the connecting piece 10.

As shown in fig. 1, the telescopic fixing support further includes a second installation body 50, the second installation body 50 is disposed on the connecting piece 10, the second installation body 50 is a strip-shaped block structure distributed along the axial direction of the connecting piece 10, and the second installation body 50 is provided with a first guide groove 51. More preferably, a second guiding groove 52 is arranged on one side of the second installation body 50 far away from the telescopic rod 20, a limiting block 22 is arranged on one end of the telescopic rod 20 near the connecting piece 10, the transverse cross sections of the second guiding groove 52 and the limiting block 22 are larger than that of the first guiding groove 51, and the limiting block 22 is movably arranged in the second guiding groove 52. By the cooperation of the second guide groove 52 and the limiting block 22, the axial movement range of the telescopic rod 20 in the connecting piece 10 is limited, and the telescopic rod 20 can be prevented from slipping from the connecting piece 10. When the connector 10 is of a hollow cylindrical tubular structure, the second mounting body 50 is disposed within the connector 10.

In other embodiments, the clamping seat 31 may also be a rectangular frame structure without a mounting member, where the rectangular frame structure has two side plates and a bottom plate parallel to each other. The first elastic member 32 is a spring, and the first elastic member 32 is disposed along the radial direction of the connection member 10. One end of the first elastic member 32 is fixed to the bottom plate of the clamping seat 31, and the other end is disposed toward one side of the locking member 40. The locking member 40 moves the chucking seat 31 to the telescopic rod 20 side by contacting and pressing with the first elastic member 32.

The application designs telescopic fixed bolster's theory of use: as shown in fig. 8, the fixing bracket is in the unlocked state, the clamping mechanism 30 is relatively far away from the telescopic rod 20, and the first tooth part 21 on the telescopic rod 20 and the second tooth part 311 on the clamping mechanism 30 are relatively separated. The user may push or pull the telescopic rod 20 with a slight effort to change the overall axial length of the fixed bracket. As shown in fig. 9, when the telescopic link 20 is adjusted to an appropriate length, the locking member 40 is rotated clockwise (the locking member 40 in fig. 8 is changed to the state of the locking member 40 in fig. 9), the locking member 40 is fixed to the connecting member 10, and the locking member 40 moves the clamping mechanism 30 to the telescopic link 20 side, the first tooth portion 21 and the second tooth portion 311 are engaged, and the telescopic link 20 cannot move relative to the connecting member 10. At the same time, the second elastic member 33 of the clamping mechanism 30 indirectly applies an axial force to the telescopic rod 20 to assist the engagement firmness between the first tooth portion 21 and the second tooth portion 311. After the length of the fixing bracket is adjusted, the fixing bracket can be fixed on a support through clamping parts at two ends, for example, two metal rods fixed on a headrest of a vehicle seat. When the fixing bracket needs to be detached from the support, after the locking member 40 is shifted anticlockwise, the clamping seat 31 moves away from the telescopic rod 20 under the action of the first elastic member 32, so that the engagement relationship between the first tooth portion 21 and the second tooth portion 311 is released, and at this time, the telescopic rod 20 can be contracted relative to the connecting member 10.

The application designs above-mentioned telescopic fixed bolster, changes manual chucking fixed knot structure back by conventional spring is flexible, can increase the installation fastness of fixed bolster, simultaneously, also can effectively avoid the spring fracture, or the poor phenomenon of spring elasticity to take place. Through the fixed bolster of this application, can be safer stable fixed electronic product, improve fail safe nature. The terms of front, rear, left, right and the like in the above embodiments are merely for more clearly describing the technical solutions of the present application, and should not be construed as limiting the present application.

The foregoing description of specific examples has been presented only to aid in the understanding of the present application and is not intended to limit the present application. Several simple deductions, modifications or substitutions may also be made by the person skilled in the art to which the present application pertains, according to the idea of the present application.

Claims (10)

1. A retractable fixing bracket, comprising:

the connecting piece is provided with a first guide groove along the axial direction, and is provided with an adapter body which is used for being in rotary connection with a chuck for clamping and fixing the electronic product;

one end of the telescopic rod is slidably arranged in the first guide groove, the other end of the telescopic rod is positioned outside the connecting piece, and clamping parts are arranged at one ends, far away from each other in the axial direction, of the telescopic rod and the connecting piece;

the clamping mechanism is arranged between the telescopic rod and the connecting piece, the clamping mechanism can move towards one side close to or far away from the telescopic rod, a first tooth part is arranged on the telescopic rod, a second tooth part is arranged on the clamping mechanism, and the first tooth part and the second tooth part are used for being meshed to limit the position of the telescopic rod relative to the connecting piece; and

the locking piece is arranged on the connecting piece and used for enabling the clamping mechanism to move towards one side close to the telescopic rod so as to enable the first tooth portion to be meshed with the second tooth portion.

2. The retractable fixing bracket according to claim 1, wherein the clamping mechanism comprises a clamping seat and a first elastic member, the second tooth part is arranged on one side of the clamping seat close to the telescopic rod, the first elastic member is arranged on the clamping seat, and the first elastic member is used for assisting the clamping seat to move towards one side far away from the telescopic rod so as to release the engagement of the first tooth part and the second tooth part.

3. The retractable fixing bracket as claimed in claim 2, wherein said clamping seat has a rectangular frame structure comprising two side plates and a bottom plate parallel to each other; the bottom plate is sunken towards one side far away from the telescopic rod, and the second tooth part is arranged on the bottom plate; the side plates on two sides of the bottom plate are respectively provided with an installation piece, the installation pieces on two sides of the clamping seat are respectively provided with the first elastic piece, and two ends of the first elastic piece are respectively abutted with the connecting piece and the clamping seat; the locking piece is used for extruding the clamping seat so as to enable the first tooth part and the second tooth part to be meshed.

4. A retractable fixing bracket according to claim 3, wherein the connector is provided with a first fitting groove, and the clamping seat is positioned in the first fitting groove; the locking part is arranged on the locking part and is used for being arranged between the clamping seat and the connecting part along the axial direction of the connecting part in an interference mode.

5. The retractable fixing bracket as claimed in claim 4, wherein the clamping mechanism further comprises a second elastic member, the connecting member is provided with a second assembling groove, the second elastic member is located in the second assembling groove, and two ends of the second elastic member are respectively abutted against the second assembling groove and the clamping seat which are distributed along the axial direction of the connecting member.

6. The retractable fixing bracket according to any one of claims 1-5, wherein a buckling hole is formed in the connecting piece, one end of the locking piece is rotatably connected with the connecting piece at the buckling hole, and a poking buckling part is arranged at the other end of the locking piece.

7. The retractable fixing bracket according to claim 6, wherein the connecting piece is provided with a first installation body, the first installation body is provided with a rotating shaft, and the locking piece is rotationally connected with the rotating shaft; the first installation body is provided with a first limiting part, the locking piece is provided with a second limiting part, and the first limiting part and the second limiting part are used for being matched to limit the position of the locking piece relative to the first installation body.

8. The retractable fixing bracket as claimed in claim 1, wherein said connecting member comprises a bracket body and a cover body, said locking member is provided on said bracket body, and said retaining portions are provided on ends of said retractable rod and said bracket body which are axially apart from each other.

9. The retractable fixing bracket of claim 1, further comprising a second mounting body disposed on said connector, said second mounting body defining said first guide slot.

10. The telescopic bracket according to claim 9, wherein a second guide groove is formed in a side, away from the telescopic rod, of the second mounting body, a limiting block is arranged at one end, close to the connecting piece, of the telescopic rod, and the limiting block is movably arranged in the second guide groove.