Goods shelf connecting piece and bicycle goods shelf

By designing adjustable shelf connectors, the problems of poor adaptability and inaccurate installation of bicycle rack connection structure are solved, and high adaptability and precise installation are achieved to avoid damage to the rear fork of bicycle.

CN223045878UActive Publication Date: 2025-07-01NINGBO ERGOVIDA HEALTH TECH LTD
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Patent Information

Application Number
CN202422334781.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-24
Publication Date
2025-07-01
Estimated Expiration
2034-09-24

AI Technical Summary

Technical Problem

The existing bicycle shelf connection structure has poor adaptability, which can easily damage the bicycle's rear fork and is not installed accurately.

Method used

A shelf connection member is designed, including a body, an adjusting member and a clamping assembly, and an adjustable connection hole is formed through the clamping member and the clamping member to adapt to bicycle rear forks of different thicknesses without damaging the bicycle structure.

Benefits of technology

It achieves high adaptability and precise installation to avoid damage to the rear fork of the bicycle. It can be restored to its original state after installation, with high adaptability and accurate installation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a goods shelf connecting piece and a bicycle, which are characterized in that the goods shelf connecting piece comprises a body (100) used for being connected with a goods shelf (400); the adjusting piece (200) is arranged on the body (100); the clamping assembly (300) comprises an embracing piece (302) and a clamping piece (301), a connecting hole (303) used for being connected with a bicycle frame is formed between the embracing piece (302) and the clamping piece (301), the embracing piece (302) is connected with the body (100), the clamping piece (301) is connected with the adjusting piece (200), the adjusting piece (200) is operated, the clamping piece (301) can be made to be close to or away from the embracing piece (302), and the clamping piece (301) is made to be close to or away from the embracing piece (302). And the size of the connecting hole (303) is adjustable.
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Description

Technical Field

[0001] The utility model belongs to the technical field of vehicles, and particularly relates to a shelf connecting piece and a bicycle shelf. Background Art

[0002] Bicycles have become an indispensable means of transportation in people's daily lives. Bicycle shelves are an important part of bicycles. For long-distance cycling or traveling, the shelves can be used to install luggage racks or tie suitcases, allowing riders to easily carry essential items without having to carry heavy backpacks. During daily commuting or shopping, the shelves can also be used to hang shopping bags or baskets to facilitate carrying daily necessities and improve comfort: to meet different cycling needs.

[0003] However, most of the existing connection structures between detachable shelves and bicycles are realized through structures similar to clamps. For example, a clamping piece is arranged at the connecting end of the shelf. After holding the rear fork, it is locked with screws. The adaptability of such shelf connection structures is poor. Moreover, most of such connection structures are metal parts pasted with soft glue, and it is not easy to lock the screws through the metal parts. If the locking force is too large, the rear fork of the bicycle is easily deformed, and the soft glue pad will break and scratch the surface of the rear fork of the bicycle. Then, when the shelf is not needed, the damage to the surface of the rear fork will affect the appearance. Summary of the Utility Model

[0004] The purpose of the present utility model is to provide a shelf connecting piece with good adaptability and without damaging the rear fork structure for the above problems existing in the prior art.

[0005] The purpose of the present utility model can be achieved by the following technical solutions: A shelf connecting piece, comprising:

[0006] A body for connecting with the shelf;

[0007] An adjusting piece arranged on the body;

[0008] A clamping assembly, which includes a clamping piece and a clamping member. A connection hole for connecting with the bicycle frame is formed between the clamping piece and the clamping member. The clamping piece is connected with the body, and the clamping member is connected with the adjusting piece. By operating the adjusting piece, the clamping member can be made to approach or move away from the clamping piece, so that the size of the connection hole is adjustable.

[0009] In the above-mentioned shelf connecting piece, an installation cavity with an opening is arranged on the body. The clamping member is located in the installation cavity. The clamping piece is arranged on the body and faces the opening of the installation cavity. The clamping member can move in the installation cavity to realize the approach or movement away of the clamping member relative to the clamping piece.

[0010] In the above-mentioned shelf connecting piece, the adjusting piece includes an operating rod. The first end of the operating rod is rotatably connected to the body. The outer wall of the second end of the operating rod is provided with an external thread. An adjusting hole is provided on the clamping piece, and an internal thread is provided on the inner wall of the adjusting hole. The external thread is threadedly connected to the internal thread. Rotating the operating rod can drive the clamping piece to move relative to the opening of the installation cavity, and the clamping piece is in non-rotating fit with the inner side wall of the installation cavity.

[0011] In the above-mentioned shelf connecting piece, a positioning nut is arranged in the installation cavity. The first end of the operating rod is fixedly connected to the positioning nut, and the first end of the operating rod can be operated from the outside of the body. A limiting portion is arranged at the end of the first end of the operating rod. The limiting portion and the positioning nut are used to limit the axial movement of the operating rod along the installation cavity.

[0012] In the above-mentioned shelf connecting piece, a anti-disengagement portion is arranged at the end of the second end of the operating rod to prevent the clamping piece from disengaging from the operating rod.

[0013] In the above-mentioned shelf connecting piece, the clamping piece includes a clamping block. A limiting block is fixedly arranged on the clamping block. The clamping block is located in the installation cavity, while the limiting block is located outside the installation cavity. When the clamping block moves to the first position, the limiting block abuts against the body.

[0014] In the above-mentioned shelf connecting piece, a flexible abutting block is arranged on the limiting block. The flexible abutting block is located in the connecting hole, and the flexible abutting block is used to contact the bicycle frame.

[0015] In the above-mentioned shelf connecting piece, the clamping part includes a clamping portion. One end of the clamping portion is connected to the body, and the other end of the clamping portion is detachably connected to the body.

[0016] In the above-mentioned shelf connecting piece, the clamping part further includes a connecting portion. The connecting portion is connected to the end of the clamping portion. At least one fixing hole is arranged on the connecting portion, and a fixing portion is arranged on the body. The fixing hole is sleeved on the fixing portion to realize the connection between the body and the clamping portion.

[0017] A bicycle shelf includes any one of the above-mentioned shelf connecting pieces and a shelf, and the shelf connecting piece is connected to the shelf.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] (1) After the connecting hole formed between the clamping member and the holding member is sleeved on the bicycle frame, by adjusting the position of the clamping member, the size of the connecting hole is gradually reduced, and the connecting hole shrinks to squeeze the bicycle frame, so that the fixation of the body and the bicycle frame can be achieved without modifying or damaging the structure of the bicycle frame;

[0020] (2) Since the size of the connecting hole of the clamping assembly is adjustable, the shelf connecting piece of the present utility model is suitable for bicycle rear forks with different thicknesses, and has high adaptability;

[0021] (3) Moreover, the position of the body on the bicycle frame is adjustable. During installation, the relative position between the body and the bicycle frame can be finely adjusted to ensure the accurate installation of the relative position of the shelf. Brief Description of the Drawings

[0022] Figure 1 is a schematic diagram of the state after the shelf and the shelf connecting piece of the embodiment of the present utility model are connected;

[0023] Figure 2 is a three-dimensional structural schematic diagram of the shelf connecting piece of the embodiment of the present utility model;

[0024] Figure 3 is Figure 2 the exploded structural schematic diagram of;

[0025] Figure 4 is Figure 3 the partial enlarged schematic diagram at A in;

[0026] Figure 5 is Figure 2 the sectional structural schematic diagram of;

[0027] Figure 6 is a schematic diagram of the state before the shelf and the shelf connecting piece of the embodiment of the present utility model are not connected.

[0028] In the figure, body 100; fixing part 101; limiting groove 102; locking screw 103; connecting notch 104; connecting clip groove 105; adjusting part 200; operating rod 201; adjusting hole 202; positioning nut 203; limiting part 204; anti-detachment part 205; mounting hole 206; clamping assembly 300; clamping part 301; holding part 302; connecting hole 303; holding part 304; mounting cavity 305; guiding strip 306; clamping block 307; limiting block 308; flexible abutting block 309; connecting part 310; fixing hole 311; shelf 400; connecting rod 401. Detailed Embodiments

[0029] The following are specific embodiments of the present utility model and in conjunction with the drawings, the technical solutions of the present utility model are further described, but the present utility model is not limited to these embodiments.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the attached drawings). If this specific posture changes, the directional indications will also change accordingly.

[0031] As Figures 1-6 shown, a shelf connecting piece includes:

[0032] A body 100 for connecting with a shelf 400;

[0033] An adjusting piece 200 arranged on the body 100;

[0034] A clamping assembly 300, which includes a clamping piece 302 and a clamping member 301. A connecting hole 303 for connecting with a bicycle frame is formed between the clamping piece 302 and the clamping member 301. The clamping piece 302 is connected to the body 100, and the clamping member 301 is connected to the adjusting piece 200. By operating the adjusting piece 200, the clamping member 301 can move closer to or away from the clamping piece 302, so that the size of the connecting hole 303 is adjustable.

[0035] In this embodiment, after the connecting hole 303 formed between the clamping piece 302 and the clamping member 301 is sleeved on the bicycle frame, by adjusting the position of the clamping member 301, the size of the connecting hole 303 is gradually reduced, and the connecting hole 303 shrinks to squeeze the bicycle frame, so that the fixation of the body 100 and the bicycle frame can be realized without modifying the structure of the bicycle frame. When the shelf 400 is removed from the bicycle, the bicycle frame can return to its original state; since the size of the connecting hole 303 of the clamping assembly is adjustable, the shelf connecting piece of this embodiment can be adapted to bicycle rear forks of different thicknesses, with high adaptability; and the position of the body 100 on the bicycle frame is adjustable. During installation, the relative position between the body 100 and the bicycle frame can be finely adjusted to ensure the accurate installation of the relative position of the shelf 400.

[0036] Specifically, an installation cavity 305 with an opening is provided on the body 100. The clamping member 301 is located in the installation cavity 305. The clamping piece 302 is arranged on the body 100 and faces the opening of the installation cavity 305. The clamping member 301 can move in the installation cavity 305 to realize the movement of the clamping member 301 closer to or away from the clamping piece 302.

[0037] In this embodiment, in order to adjust the distance between the clamping member 301 and the clamping and holding member 302, an installation cavity 305 is provided to guide the movement of the clamping member 301. The clamping and holding member 302 is arranged towards the opening of the installation cavity 305, such that the clamping and holding member 302 forms a semi-circular ring around the opening of the installation cavity 305. Then, as the clamping member 301 moves within the installation cavity 305, the linear distance between the clamping and holding member 302 and the clamping member 301 changes accordingly, that is, the space enclosed between the clamping and holding member 302 and the clamping member 301 changes, thereby adapting to bicycle frames with different outer diameters.

[0038] Specifically, the adjusting member 200 includes an operating rod 201. The first end of the operating rod 201 is rotatably connected to the main body 100. The outer wall of the second end of the operating rod 201 is provided with an external thread. An adjusting hole 202 is provided on the clamping member 301, and an internal thread is provided on the inner wall of the adjusting hole 202. The external thread is threadedly connected to the internal thread. Rotating the operating rod 201 can drive the clamping member 301 to move relative to the opening of the installation cavity 305, and the clamping member 301 is in anti-rotation cooperation with the inner side wall of the installation cavity 305.

[0039] In this embodiment, in order to convert the rotational force of the operating rod 201 into the driving force for the linear movement of the clamping member 301, the second end of the operating rod 201 is provided with an external thread, and the clamping member 301 is provided with an adjusting hole 202 with an internal thread, such that the second end of the operating rod 201 is threadedly connected to the clamping member 301. Since the first end of the operating rod 201 is rotatably connected to the main body 100, then as the operating rod 201 rotates, the position of the operating rod 201 in the axial direction along the installation cavity 305 remains unchanged, that is, the operating rod 201 rotates idly. And because the clamping member 301 is in anti-rotation cooperation with the inner side wall of the installation cavity 305, restricting the clamping member 301 from rotating, then under the rotation of the operating rod 201, the clamping member 301 can only move in a linear direction.

[0040] As an optional solution, the transverse cross-sections of the clamping member 301 and the installation cavity 305 are both set to be rectangular, so as to realize the mutual abutment of multiple surfaces between the outer wall of the clamping member 301 and the inner wall of the installation cavity 305, ensuring that when the clamping member 301 moves, it will not rotate relative to the installation cavity 305. And in order to reduce the movement friction between the clamping member 301 and the installation cavity 305, along the moving direction of the clamping member 301, guiding strips 306 are provided at the corners of the clamping member 301. The guiding strips 306 protrude from the clamping member 301, and the guiding strips 306 abut against the corners of the corresponding inner side wall of the installation cavity 305.

[0041] Specifically, a positioning nut 203 is arranged in the installation cavity 305. The first end of the operating rod 201 is fixedly connected to the positioning nut 203, and the first end of the operating rod 201 can be operated from the outside of the body 100. A limiting portion 204 is arranged at the end of the first end of the operating rod 201. The limiting portion 204 and the positioning nut 203 are used to limit the axial movement of the operating rod 201 along the installation cavity 305, so as to ensure that the operating rod 201 does not separate from the body 100.

[0042] In this embodiment, in order to realize the rotation between the operating rod 201 and the body 100, a positioning nut 203 is fixedly arranged on the operating rod 201, and a limiting portion 204 is arranged on the first end of the operating rod 201. After the positioning nut 203 is fixedly connected to the operating rod 201, the limiting portion 204 and the positioning nut 203 cooperate to limit the relative position of the operating rod 201, so that it can only rotate relative to the body 100; preferably, gaskets are arranged on both the positioning nut 203 and the limiting portion 204 to avoid direct contact between the positioning nut 203 or the limiting portion 204 and the body 100, reduce the rotational friction of the operating rod 201, and after wear occurs after using for a period of time, the gasket can be replaced.

[0043] It is worth mentioning that in order to facilitate the rotation operation of the operating rod 201, a screwing groove is arranged on the limiting portion 204. For example, it can be set as an internal hexagonal groove.

[0044] As Figures 2-5 shown, further, an installation hole 206 is provided on the body 100. The installation hole 206 communicates the outside of the body 100 with the installation cavity 305. A positioning nut 203 is arranged in the installation cavity 305. The operating rod 201 is fixedly connected to the positioning nut 203. The first end of the operating rod 201 passes through the installation hole 206. A limiting portion 204 is arranged at the end of the first end of the operating rod 201. The limiting portion 204 and the positioning nut 203 are used to limit the axial movement of the operating rod 201 along the installation hole 206. A cross groove, a slotted groove or an internal hexagonal groove etc. can be arranged on the outer end face of the limiting portion 204 to facilitate the rotation of the operating rod 201 from the outside. Of course, if the limiting portion 204 is long enough and extends above the outer surface of the body 100, the limiting portion 204 can also be directly screwed by hand. Moreover, due to the limiting portion 204 and the positioning nut 203, the operating rod 201 can only rotate relative to the body 100 and will not come out of the installation hole 206.

[0045] Preferably, an anti - detachment portion 205 is arranged at the end of the second end of the operating rod 201 to prevent the clamping member 301 from detaching from the operating rod 201.

[0046] In this embodiment, in order to prevent the clamping member 301 from possibly falling off the operating rod 201 during the rotation of the operating rod 201, an anti - detachment portion 205 is provided on the operating rod 201. When the clamping member 301 attempts to detach from the operating rod 201, the anti - detachment portion 205 abuts against the clamping member 301. To ensure that the anti - detachment portion 205 does not occupy the installation space of the connection hole 303, that is, to ensure that there is sufficient contact area between the clamping member 301 and the bicycle frame, it is preferably set that the outer end surface of the anti - detachment portion 205 does not extend beyond the outer end surface of the clamping member 301 and is hidden inside the clamping member 301.

[0047] It is worth mentioning that a hidden cavity is provided inside the clamping member 301. The anti - detachment portion 205 includes an anti - detachment screw. The second end of the operating rod 201 extends into the hidden cavity, and the anti - detachment screw is fixedly connected to the second end of the operating rod 201. The outer edge of the screw head of the anti - detachment screw exceeds the outer peripheral surface of the operating rod 201.

[0048] Specifically, the clamping member 301 includes a clamping block 307. A limiting block 308 is fixedly provided on the clamping block 307. The clamping block 307 is located inside the installation cavity 305, while the limiting block 308 is located outside the installation cavity 305. And when the clamping block 307 moves to the first position, the limiting block 308 abuts against the main body 100. The first position refers to the position where the clamping block 307 is located at the innermost part of the installation cavity 305. The outer surface of the limiting block 308 is arc - shaped to better fit the tubular shape of the bicycle frame. And the limiting block 308 is located outside the installation cavity 305, which is convenient for increasing its surface area and the contact area with the bicycle.

[0049] In this embodiment, during initial installation, the limiting block 308 can be made to abut against the main body 100. At this time, the size of the connection hole 303 is the largest, and it can be easily sleeved on the bicycle frame. Then, the operating rod 201 is rotated to drive the clamping member 301 to drive the limiting block 308 closer to the clamping part 302, so that the space between them gradually decreases, and the bicycle frame is clamped and fixed.

[0050] Preferably, a flexible abutting block 309 is provided on the limiting block 308. The flexible abutting block 309 is located inside the connection hole 303. The flexible abutting block 309 is used to contact the bicycle frame to prevent damage to the surface of the bicycle frame caused by hard connection between the limiting block 308 and the bicycle frame.

[0051] It is worth mentioning that a plurality of separation grooves are arranged at intervals on the contact surface of the flexible abutting block 309 and the bicycle frame to increase the friction when the flexible abutting block 309 clamps the bicycle frame.

[0052] Specifically, the clamping part 302 includes a clamping portion 304. One end of the clamping portion 304 is connected to the main body 100, and the other end of the clamping portion 304 is detachably connected to the main body 100.

[0053] In this embodiment, in order to facilitate the insertion of the bicycle frame into the connection hole 303, at least one end of the clamping portion 304 is detachably connected to the main body 100. When installation is required, the connection between one end of the clamping portion 304 and the main body 100 is opened, so that the bicycle frame can pass through the gap formed between the clamping portion 304 and the main body 100 and extend into the connection hole 303.

[0054] Optionally, both ends of the clamping portion 304 are detachably connected to the main body 100.

[0055] Specifically, the clamping member 302 further includes a connecting portion 310. The connecting portion 310 is connected to the end of the clamping portion 304. At least one fixing hole 311 is provided on the connecting portion 310, and a fixing portion 101 is provided on the main body 100. The fixing hole 311 is sleeved on the fixing portion 101 to realize the connection between the main body 100 and the clamping portion 304. Optionally, the clamping member 302 is made of a flexible material and can be bent and deformed. A plurality of fixing holes 311 are provided on the connecting portion 310, and connecting different fixing holes 311 to the fixing portion 101 can further adjust the size of the connection hole 303, thereby further increasing the adaptation range of the shelf connecting member.

[0056] It is worth mentioning that a limiting groove 102 is formed on the fixing portion 101. A limiting space is formed between the limiting groove 102 and the main body 100. The fixing hole 311 is sleeved on the fixing portion 101, and the connecting portion 310 is stuck in the limiting space.

[0057] A bicycle shelf includes the above-mentioned shelf connecting member and a shelf 400, and the shelf connecting member is connected to the shelf 400.

[0058] As Figure 2 、 Figure 6 shown, it is worth mentioning that a connection notch 104 is formed on the main body 100. Connection clamping grooves 105 are provided on the inner side walls on both sides of the connection notch 104. The inner side walls on both sides of the connection notch 104 can approach each other. The connecting rod 401 on the shelf 400 is inserted between the two connection clamping grooves 105, and then the locking screw 103 is passed through the connection notch 104, so that the two connection clamping grooves 105 approach each other to clamp and lock the connecting rod 401, realizing the fixation between the main body 100 and the connecting rod 401.

[0059] It should be noted that in the present utility model, descriptions such as "first", "second", "one", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. Terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0060] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0061] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art of the present utility model can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. A shelf connector, characterized in that: include: A body (100) for connecting with a shelf (400); An adjusting member (200) is arranged on the body (100); The clamping assembly (300) comprises an embracing member (302) and a clamping member (301); a connecting hole (303) for connecting to a bicycle frame is formed between the embracing member (302) and the clamping member (301); the embracing member (302) is connected to the body (100); the clamping member (301) is connected to the adjusting member (200); by operating the adjusting member (200), the clamping member (301) can be moved closer to or farther from the embracing member (302), so that the size of the connecting hole (303) can be adjusted.

2. A shelf connector according to claim 1, characterized in that: The main body (100) is provided with a mounting cavity (305) having an opening, the clamping member (301) is located in the mounting cavity (305), the embracing member (302) is arranged on the main body (100) and faces the opening of the mounting cavity (305), and the clamping member (301) can move in the mounting cavity (305) to achieve the approach or distance of the clamping member (301) relative to the embracing member (302).

3. A shelf connector according to claim 2, characterized in that: The adjusting member (200) comprises an operating rod (201), a first end of the operating rod (201) being rotatably connected to the main body (100), an outer wall of the second end of the operating rod (201) being provided with an external thread, an adjusting hole (202) being provided on the clamping member (301), an inner wall of the adjusting hole (202) being provided with an internal thread, the external thread being threadably connected to the internal thread, and rotating the operating rod (201) can drive the clamping member (301) to move relative to the opening of the mounting cavity (305), and the clamping member (301) is anti-rotationally engaged with the inner wall of the mounting cavity (305).

4. A shelf connector according to claim 3, characterized in that: A positioning nut (203) is provided in the installation cavity (305), the first end of the operating rod (201) is fixedly connected to the positioning nut (203), and the first end of the operating rod (201) can be operated from the outside of the main body (100), and a limiting portion (204) is provided at the first end of the operating rod (201), and the limiting portion (204) and the positioning nut (203) are used to limit the axial movement of the operating rod (201) along the installation cavity (305).

5. A shelf connector according to claim 3, characterized in that: An anti-detachment portion (205) is provided at the end of the second end of the operating rod (201) to prevent the clamping member (301) from detaching from the operating rod (201).

6. A shelf connector according to claim 2, characterized in that: The clamping member (301) comprises a clamping block (307), a limit block (308) is fixedly arranged on the clamping block (307), the clamping block (307) is located in the installation cavity (305), and the limit block (308) is located outside the installation cavity (305), and when the clamping block (307) moves to the first position, the limit block (308) abuts against the body (100).

7. A shelf connector according to claim 6, characterized in that: The limit block (308) is provided with a flexible abutment block (309), the flexible abutment block (309) is located in the connection hole (303), and the flexible abutment block (309) is used to contact with the bicycle frame.

8. The shelf connector according to claim 1, characterized in that: The embracing member (302) comprises an embracing portion (304), one end of the embracing portion (304) is connected to the body (100), and the other end of the embracing portion (304) is detachably connected to the body (100).

9. A shelf connector according to claim 8, characterized in that: The embracing member (302) further comprises a connecting portion (310), wherein the connecting portion (310) is connected to the end of the embracing portion (304), wherein the connecting portion (310) is provided with at least one fixing hole (311), and the main body (100) is provided with a fixing portion (101), wherein the fixing hole (311) is sleeved on the fixing portion (101), thereby realizing the connection between the main body (100) and the embracing portion (304).

10. A bicycle rack, characterized in that: It comprises a shelf connector and a shelf (400) as described in any one of claims 1 to 9 above, wherein the shelf connector is connected to the shelf (400).