Fixed bracket

Abstract

This invention belongs to the field of electronic product accessory technology and discloses a fixing bracket, including a fixing base, a support arm, a clamping arm, an elastic element, and an unlocking device. The fixing base has a bearing surface, allowing the clamped item to be placed on the bearing surface. The support arm is fixed to the fixing base on one side of the bearing surface, while the clamping arm is movably mounted on the fixing base on the other side of the bearing surface. The two ends of the elastic element abut against the fixing base and the clamping arm, respectively. When one side of the clamped item on the bearing surface abuts against the support arm, the elastic element drives the clamping arm to abut against the other side of the clamped item. The unlocking device is located on the fixing base and can drive the clamping arm away from the support arm. In this invention, the support arm and clamping arm are located on opposite sides of the bearing surface of the fixing base, ensuring reliable support of the clamped item on the fixing base via the support arm. This prevents movement of the clamped item during clamping and avoids accidental drop during release.

Description

Technical Field

[0001] This invention relates to the field of electronic product accessories technology, and in particular to a mounting bracket. Background Technology

[0002] The usage scenarios for existing electronic products such as mobile phones and tablets are becoming increasingly diverse. In scenarios where users cannot hold the device in their hands, it is necessary to use a fixed bracket for clamping and securing.

[0003] Existing mounting brackets typically consist of a mounting base and multiple clamping arms. These arms are positioned on opposite sides of the mounting base and can move towards each other to clamp the phone onto the base or move away from each other to release the phone. In this design, the electronic product lacks a reliable support structure on the mounting base. During clamping, the multiple clamping arms can cause the electronic product to move, making it easy for it to shift and fall off. During release, the position of the clamping arms detached from the electronic product is unclear, making it easy for the phone to fall. Summary of the Invention

[0004] The purpose of this invention is to provide a fixed bracket that can reliably support electronic products during clamping and releasing.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] The fixed bracket includes:

[0007] A fixed base, wherein a bearing surface is provided on the fixed base;

[0008] The support arm is fixed to the fixed base and located on one side of the bearing surface;

[0009] The clamping arm is movably mounted on the fixed base and located on the other side of the bearing surface;

[0010] An elastic element has two ends that abut against the fixed base and the clamping arm, respectively. When one side of the clamped item on the bearing surface abuts against the support arm, the elastic element can drive the clamping arm to abut against the other side of the clamped item.

[0011] An unlocking device, located on the fixed base, is capable of driving the clamping arm away from the support arm.

[0012] Preferably, the support arm and the clamping arm are one-to-one and there are multiple of them. The unlocking device can drive multiple clamping arms to move synchronously.

[0013] Preferably, the unlocking device includes:

[0014] The unlocking element is slidably mounted on the fixed base;

[0015] A synchronization mechanism, the input end of which is connected to the unlocking component;

[0016] Each of the clamping arms is equipped with a pusher, which is slidably disposed on the fixed base and abuts against the clamping arm. The pusher is connected to the output end of the synchronization mechanism. When the unlocking member slides relative to the fixed base, it can drive the pusher to push the clamping arm away from the support arm.

[0017] Preferably, the synchronization mechanism includes:

[0018] The input gear is rotatably mounted on the fixed base and engages with the unlocking component;

[0019] An output gear is connected to the input gear;

[0020] Each of the pushing members is equipped with a transmission rod, which is slidably disposed on the fixed base, meshes with the output gear, and is connected to the pushing member.

[0021] Preferably, the synchronization mechanism includes:

[0022] The drive gear is rotatably mounted on the fixed base and meshes with the unlocking component;

[0023] Synchronizing pulley, connected to the driving gear;

[0024] Each of the pushing members is equipped with a swing rod, one end of which is rotatably connected to the synchronous pulley and the other end of which is rotatably connected to the pushing member.

[0025] Preferably, the pushing member is provided with a force-applying surface, and the clamping arm is provided with a force-receiving surface. The force-applying surface can drive the clamping arm away from the supporting arm by pushing against the force-receiving surface.

[0026] Preferably, the pushing member is provided with a limiting surface, and the clamping arm is provided with a positioning surface. Under the drive of the elastic member, the pushing member stops at the limiting surface and the positioning surface.

[0027] Preferably, the unlocking component includes an unlocking support and an unlocking protrusion connected to the unlocking support. The unlocking support is located in the accommodating cavity of the fixed base and connected to the input end of the synchronization mechanism. The fixed base is provided with an operating port communicating with the accommodating cavity, and the unlocking protrusion slides through the operating port.

[0028] Preferably, the clamping arm includes a main body block, a sliding block, and a gripper connected in sequence. The main body block is located in the receiving cavity of the fixed seat. The fixed seat is provided with a fitting opening communicating with the receiving cavity. The sliding block is slidably inserted into the fitting opening. The gripper is configured to abut against the clamped item.

[0029] Preferably, the main body block is provided with a limiting groove, and the elastic element is located in the limiting groove.

[0030] The beneficial effects of this invention are:

[0031] The support arm and clamping arm are located on opposite sides of the bearing surface of the fixed base, allowing the clamped item to be reliably supported on the fixed base by the support arm. During the clamping process, the clamping arm moves toward the support arm to clamp the item, preventing it from moving. During the release process, the user only needs to place the clamped item against the support arm, and the clamping arm can be driven away from the support arm by the unlocking device, preventing the clamped item from falling accidentally. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the fixed bracket described in an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the structure of the fixed base, support arm, clamping arm and elastic element in cooperation according to an embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of the clamping arm described in an embodiment of the present invention;

[0035] Figure 4 This is a top view of the fixed base, support arm, clamping arm, elastic element and unlocking device described in the embodiment of the present invention.

[0036] Figure 5 This is a schematic diagram of the structure of an unlocking device according to an embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the structure of the pushing member described in an embodiment of the present invention;

[0038] Figure 7 This is a top view of the fixed base, support arm, clamping arm, elastic element and another unlocking device described in the embodiment of the present invention.

[0039] Figure 8 This is a schematic diagram of another unlocking device according to an embodiment of the present invention.

[0040] In the picture:

[0041] 1. Fixed base;

[0042] 11. Bearing surface;

[0043] 12. Anti-stop convex strip;

[0044] 2. Support arm;

[0045] 3. Clamping arm;

[0046] 31. Main body block; 311. Limiting groove; 312. Force-bearing surface; 313. Positioning surface;

[0047] 32. Sliding block;

[0048] 33. Gripper;

[0049] 4. Elastic components;

[0050] 5. Unlocking device;

[0051] 51. Unlocking component; 511. Unlocking support body; 512. Unlocking protrusion;

[0052] 52. Synchronizing mechanism; 521. Input gear; 522. Output gear; 523. Transmission rod; 524. Driving gear; 525. Synchronizing pulley; 526. Swing rod;

[0053] 53. Pushing component; 531. Force-applying surface; 532. Limiting surface. Detailed Implementation

[0054] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0055] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0057] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0058] like Figures 1-8 As shown, the present invention provides a fixed bracket, including a fixed base 1, a support arm 2, a clamping arm 3, an elastic element 4, and an unlocking device 5. The fixed base 1 has a bearing surface 11 on which an object can be clamped. The support arm 2 is fixed to the fixed base 1 and located on one side of the bearing surface 11. The clamping arm 3 is movably disposed on the fixed base 1 and located on the other side of the bearing surface 11. The two ends of the elastic element 4 abut against the fixed base 1 and the clamping arm 3, respectively. When one side of the object clamped on the bearing surface 11 abuts against the support arm 2, the elastic element 4 can drive the clamping arm 3 to abut against the other side of the object. The unlocking device 5 is disposed on the fixed base 1 and can drive the clamping arm 3 away from the support arm 2.

[0059] In this invention, the support arm 2 and the clamping arm 3 are located on both sides of the bearing surface 11 on the fixed base 1, so that the clamped item can be reliably supported on the fixed base 1 by the support arm 2. During the clamping and fixing process, with the support arm 2 as the reference, the clamping arm 3 moves toward the support arm 2 to clamp, thus preventing the clamped item from moving. During the release process, the user only needs to place the clamped item against the support arm 2, and the clamping arm 3 can be driven away from the support arm 2 by the unlocking device 5, thus preventing the clamped item from falling accidentally.

[0060] In this embodiment, the clamped item is an electronic product such as a mobile phone or tablet computer. In addition, it can also be other task items, which are not limited here.

[0061] Specifically, the clamping arm 3 includes a main body block 31, a sliding block 32, and a gripper 33 connected in sequence. The main body block 31 is located in the receiving cavity of the fixed base 1 and cooperates with the elastic element 4 and the unlocking device 5 in the receiving cavity. The fixed base 1 is provided with a loading port communicating with the receiving cavity. The sliding block 32 slides through the loading port, with one end extending out of the fixed base 1. The gripper 33 is located outside the fixed base 1 and is configured to abut against and clamp the item. The above configuration makes the operation of the clamping arm 3 safer.

[0062] In this embodiment, the insertion opening is a long strip-shaped through hole, the sliding block 32 has a plate-like structure, the gripper 33 has a flat structure with its end bent toward the support arm 2, the support arm 2 has a flat structure with its end bent toward the gripper 33, and the gripper 33 and the support arm 2 cooperate to more reliably grip the clamped item on the bearing surface 11.

[0063] More specifically, a limiting groove 311 is provided on the main body block 31, and the elastic element 4 is located in the limiting groove 311. By providing the limiting groove 311, the installation of the elastic element 4 is made safer.

[0064] In this embodiment, the elastic element 4 is a spring, and two elastic elements 4 are arranged in each limiting groove 311. A limiting post is provided on the inner wall of the receiving cavity, and the opening of the limiting groove 311 faces the limiting post. The elastic element 4 is sleeved on the limiting post, with one end abutting against the inner wall of the receiving cavity and the other end abutting against the bottom of the limiting groove 311. In other embodiments, the elastic element 4 can also be an elastic rubber column, etc.

[0065] Specifically, the support arm 2 and the clamping arm 3 are arranged in a one-to-one correspondence, with multiple arms respectively. The unlocking device 5 can drive multiple clamping arms 3 to move synchronously. The above arrangement makes the clamping of the support arm 2 and the clamping arm 3 on the bearing surface 11 more reliable.

[0066] In this embodiment, two support arms 2 and two clamping arms 3 are respectively provided. On the bearing surface 11 of the fixed base 1, a channel is formed between the support arms 2 and the clamping arms 3 in the first direction. Two support arms 2 are provided at one end of the fixed base 1 in the second direction. The two support arms 2 are parallel to each other and spaced apart in the first direction. Two clamping arms 3 are provided at the other end of the fixed base 1 in the second direction. The two clamping arms 3 are parallel to each other and spaced apart in the first direction. Correspondingly, one support arm 2 and one clamping arm 3 are arranged facing each other in the second direction. The clamping arm 3 can move toward or away from the support arm 2 in the second direction. The first direction is perpendicular to the second direction.

[0067] Specifically, the unlocking device 5 includes an unlocking component 51, a synchronization mechanism 52, and a pushing component 53. The unlocking component 51 is slidably mounted on the fixed base 1. The input end of the synchronization mechanism 52 is connected to the unlocking component 51. Each clamping arm 3 is equipped with a pushing component 53, which is slidably mounted on the fixed base 1 and abuts against the clamping arm 3. The pushing component 53 is connected to the output end of the synchronization mechanism 52. When the unlocking component 51 slides relative to the fixed base 1, it can drive the pushing component 53 to push the clamping arm 3 away from the support arm 2. With this configuration, by operating the unlocking component 51, the synchronization mechanism 52 can drive multiple pushing components 53 to move, thereby driving multiple clamping arms 3 to move synchronously.

[0068] More specifically, the unlocking component 51 includes an unlocking support body 511 and an unlocking protrusion 512 connected to the unlocking support body 511. The unlocking support body 511 is located in the receiving cavity of the fixed base 1 and connected to the input end of the synchronization mechanism 52. The fixed base 1 is provided with an operating port communicating with the receiving cavity, and the unlocking protrusion 512 slides through the operating port. This configuration allows only the unlocking protrusion 512 of the unlocking component 51 to extend out of the fixed base 1. The user can drive the clamping arm 3 away from the support arm 2 by pressing the unlocking component 51, making the operation simple, convenient, and reliable.

[0069] In this embodiment, the pushing member 53 is slidably disposed in the accommodating cavity of the fixed base 1 along the first direction, and the unlocking member 51 is slidably disposed on the fixed base 1 along the second direction. In the free state, driven by the elastic member 4, the unlocking support body 511 of the unlocking member 51 abuts against the inner wall of the accommodating cavity, and one end of the unlocking protrusion 512 extends out of the accommodating cavity.

[0070] In one embodiment, such as Figure 4 and Figure 5 As shown, the synchronization mechanism 52 includes an input gear 521, an output gear 522, and a transmission rod 523. The input gear 521 is rotatably mounted on the fixed base 1 and meshes with the unlocking member 51. The output gear 522 is connected to the input gear 521. Each pushing member 53 is equipped with a transmission rod 523, which is slidably mounted on the fixed base 1, meshes with the output gear 522, and is connected to the pushing member 53. This configuration allows for flexible adjustment of the movement speed of the clamping arm 3 when the unlocking member 51 is pressed by adjusting the diameter ratio of the input gear 521 and the output gear 522.

[0071] More specifically, the input gear 521 and the output gear 522 are coaxially connected. The unlocking support 511 of the unlocking member 51 is provided with an elongated hole. One side of the inner wall of the elongated hole is provided with teeth. The input gear 521 is located in the elongated hole and meshes with the inner wall of the elongated hole. The transmission rod 523 is slidably disposed in the accommodating cavity along the first direction. The side wall is provided with teeth and meshes with the output gear 522. The bending directions of the transmission rods 523 corresponding to the two pushing members 53 are opposite. The output gear 522 is sandwiched between the two transmission rods 523 in the second direction.

[0072] In another embodiment, such as Figure 7 and Figure 8As shown, the synchronization mechanism 52 includes a drive gear 524, a synchronization wheel 525, and a swing rod 526. The drive gear 524 is rotatably mounted on the fixed base 1 and meshes with the unlocking member 51. The synchronization wheel 525 is connected to the drive gear 524. Each pushing member 53 is equipped with a swing rod 526, one end of which is rotatably connected to the synchronization wheel 525, and the other end is rotatably connected to the pushing member 53. This configuration allows for flexible adjustment of the movement speed of the clamping arm 3 when the unlocking member 51 is pressed by adjusting the diameter ratio of the drive gear 524 and the synchronization wheel 525.

[0073] More specifically, the drive gear 524 and the synchronous pulley 525 are coaxially connected. The unlocking support 511 of the unlocking member 51 is provided with an elongated hole. One side of the inner wall of the elongated hole is provided with toothed patterns. The drive gear 524 is located in the elongated hole and meshes with the inner wall of the elongated hole. The swing rod 526 is provided in the accommodating cavity. When the synchronous pulley 525 rotates, the two swing rods 526 swing in opposite directions. The swing rods 526 corresponding to the two pushing members 53 are rotatably connected to the radially opposite ends of the synchronous pulley 525.

[0074] Specifically, the pushing member 53 is provided with a force-applying surface 531, and the clamping arm 3 is provided with a force-receiving surface 312. The force-applying surface 531 can drive the clamping arm 3 away from the support arm 2 by pushing against the force-receiving surface 312. The above configuration makes the driving of the clamping arm 3 by the pushing member 53 more stable and reliable.

[0075] In this embodiment, the force-receiving surface 312 is disposed on the main body block 31 of the clamping arm 3. The force-applying surface 531 and the force-receiving surface 312 are parallel to each other and can fit together. The force-applying surface 531 and the force-receiving surface 312 extend along a third direction. The first direction, the second direction and the third direction are perpendicular to each other. The angle between the force-applying surface 531 and the force-receiving surface 312 and the first direction is in the range of 30°-60°. The force-applying surfaces 531 on the two pushing members 53 are arranged opposite to each other.

[0076] More specifically, the pushing member 53 is provided with a limiting surface 532, and the clamping arm 3 is provided with a positioning surface 313. Under the drive of the elastic member 4, the pushing member 53 stops and abuts against the limiting surface 532 and the positioning surface 313. The above arrangement makes the position of the pushing member 53 and the clamping arm 3 more stable and reliable in the free state.

[0077] In this embodiment, the limiting surface 532 and the positioning surface 313 extend along a third direction and are parallel to the first direction. A stop-abutment protrusion 12 is provided in the accommodating cavity of the fixed seat 1. The stop-abutment protrusion 12 extends along the first direction. In the free state, under the support of the elastic member 4, the pushing member 53 is sandwiched between the positioning surface 313 and the stop-abutment protrusion 12. One stop-abutment protrusion 12 is configured for each pushing member 53. The two stop-abutment protrusions 12 are spaced apart in the first direction. The synchronization mechanism 52 is located between the two stop-abutment protrusions 12.

[0078] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A fixed bracket, characterized in that, include: A fixed base (1) is provided with a bearing surface (11); The support arm (2) is fixed on the fixed base (1) and located on one side of the bearing surface (11); The clamping arm (3) is movably mounted on the fixed base (1) and located on the other side of the bearing surface (11); The elastic element (4) abuts against the fixed base (1) and the clamping arm (3) respectively. When one side of the clamped item on the bearing surface (11) abuts against the support arm (2), the elastic element (4) can drive the clamping arm (3) to abut against the other side of the clamped item. The unlocking device (5) is provided on the fixed base (1) and can drive the clamping arm (3) away from the support arm (2). The unlocking device (5) includes: The unlocking component (51) is slidably mounted on the fixed base (1); Synchronization mechanism (52), the input end of which is connected to the unlocking member (51), and the output end which can drive the clamping arm (3) to move; A pusher (53) is provided on each of the clamping arms (3). The pusher (53) is slidably disposed on the fixed base (1) and abuts against the clamping arm (3). The pusher (53) is connected to the output end of the synchronization mechanism (52). When the unlocking member (51) slides relative to the fixed base (1), it can drive the pusher (53) to push the clamping arm (3) away from the support arm (2). The pusher (53) is provided with a force-applying surface (531). The clamping arm (3) is provided with a force-receiving surface (312). The force-applying surface (531) can drive the clamping arm (3) away from the support arm (2) by pushing against the force-receiving surface (312). The synchronization mechanism (52) includes: The input gear (521) is rotatably mounted on the fixed base (1) and engages with the unlocking member (51). An output gear (522) is connected to the input gear (521), the diameter of the input gear (521) being smaller than the diameter of the output gear (522); A transmission rod (523) is provided for each of the push members (53). The transmission rod (523) is slidably disposed on the fixed seat (1), meshes with the output gear (522), and is connected to the push member (53).

2. The fixing bracket according to claim 1, characterized in that, The support arm (2) and the clamping arm (3) are one-to-one and are provided in multiples. The unlocking device (5) can drive multiple clamping arms (3) to move synchronously.

3. The fixing bracket according to claim 1, characterized in that, The pusher (53) is provided with a limiting surface (532), and the clamping arm (3) is provided with a positioning surface (313). Under the drive of the elastic member (4), the pusher (53) stops at the limiting surface (532) and the positioning surface (313) abutting against each other.

4. The fixing bracket according to claim 1, characterized in that, The unlocking component (51) includes an unlocking support (511) and an unlocking protrusion (512) connected to the unlocking support (511). The unlocking support (511) is located in the accommodating cavity of the fixed base (1) and is connected to the input end of the synchronization mechanism (52). The fixed base (1) is provided with an operation port communicating with the accommodating cavity, and the unlocking protrusion (512) slides through the operation port.

5. The fixing bracket according to any one of claims 1-4, characterized in that, The clamping arm (3) includes a main body block (31), a sliding block (32) and a gripper (33) connected in sequence. The main body block (31) is located in the accommodating cavity of the fixed seat (1). The fixed seat (1) is provided with a fitting port communicating with the accommodating cavity. The sliding block (32) slides through the fitting port. The gripper (33) is configured to abut against the clamped item.

6. The fixing bracket according to claim 5, characterized in that, The main block (31) is provided with a limiting groove (311), and the elastic element (4) is located in the limiting groove (311).

7. A fixed bracket, characterized in that, include: A fixed base (1) is provided with a bearing surface (11); The support arm (2) is fixed on the fixed base (1) and located on one side of the bearing surface (11); The clamping arm (3) is movably mounted on the fixed base (1) and located on the other side of the bearing surface (11); The elastic element (4) abuts against the fixed base (1) and the clamping arm (3) respectively. When one side of the clamped item on the bearing surface (11) abuts against the support arm (2), the elastic element (4) can drive the clamping arm (3) to abut against the other side of the clamped item. The unlocking device (5) is provided on the fixed base (1) and can drive the clamping arm (3) away from the support arm (2). The unlocking device (5) includes: The unlocking component (51) is slidably mounted on the fixed base (1); Synchronization mechanism (52), the input end of which is connected to the unlocking member (51), and the output end which can drive the clamping arm (3) to move; A pusher (53) is provided on each of the clamping arms (3). The pusher (53) is slidably disposed on the fixed base (1) and abuts against the clamping arm (3). The pusher (53) is connected to the output end of the synchronization mechanism (52). When the unlocking member (51) slides relative to the fixed base (1), it can drive the pusher (53) to push the clamping arm (3) away from the support arm (2). The pusher (53) is provided with a force-applying surface (531). The clamping arm (3) is provided with a force-receiving surface (312). The force-applying surface (531) can drive the clamping arm (3) away from the support arm (2) by pushing against the force-receiving surface (312). The synchronization mechanism (52) includes: The drive gear (524) is rotatably mounted on the fixed base (1) and meshes with the unlocking member (51). A timing pulley (525) is connected to the drive gear (524), the diameter of which is smaller than the diameter of the timing pulley (525); A swing rod (526) is provided for each of the push members (53). One end of the swing rod (526) is rotatably connected to the synchronous wheel (525), and the other end is rotatably connected to the push member (53).

8. The fixing bracket according to claim 7, characterized in that, The support arm (2) and the clamping arm (3) are one-to-one and are provided in multiples. The unlocking device (5) can drive multiple clamping arms (3) to move synchronously.

9. The fixing bracket according to claim 7, characterized in that, The pusher (53) is provided with a limiting surface (532), and the clamping arm (3) is provided with a positioning surface (313). Under the drive of the elastic member (4), the pusher (53) stops at the limiting surface (532) and the positioning surface (313) abutting against each other.

10. The fixing bracket according to claim 7, characterized in that, The unlocking component (51) includes an unlocking support (511) and an unlocking protrusion (512) connected to the unlocking support (511). The unlocking support (511) is located in the accommodating cavity of the fixed base (1) and is connected to the input end of the synchronization mechanism (52). The fixed base (1) is provided with an operation port communicating with the accommodating cavity, and the unlocking protrusion (512) slides through the operation port.

11. The fixing bracket according to any one of claims 7-10, characterized in that, The clamping arm (3) includes a main body block (31), a sliding block (32) and a gripper (33) connected in sequence. The main body block (31) is located in the accommodating cavity of the fixed seat (1). The fixed seat (1) is provided with a fitting port communicating with the accommodating cavity. The sliding block (32) slides through the fitting port. The gripper (33) is configured to abut against the clamped item.

12. The fixing bracket according to claim 11, characterized in that, The main block (31) is provided with a limiting groove (311), and the elastic element (4) is located in the limiting groove (311).

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