Handlebar bracket supporting seat

By designing a handlebar bracket support, the deformable clamp and the tension of the strap are used to make the mounting base fit tightly against the handlebar surface. Combined with the anti-slip pad to increase friction, the problem of poor adaptability and wear of existing handlebar fixing structures is solved, and the mobile phone is stably fixed and can be viewed stably.

CN223934866UActive Publication Date: 2026-02-24SHENZHEN TUOXINYUAN TECH CO LTD
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Patent Information

Application Number
CN202520690960.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2026-02-24
Estimated Expiration
2035-04-14

AI Technical Summary

Technical Problem

Existing handlebar fixing structures are difficult to adapt to handlebars with different tube diameters, and prolonged vibration causes the arc-shaped fixing ring to wear down the handlebar, making it easy to loosen and inconvenient to use.

Method used

Design a handlebar bracket support, including a mounting base, a ball joint, and a strap. The mounting base has a deformable clamping part and a binding area. When the strap is tightened, the mounting base is pressed tightly against the handlebar surface. Combined with an anti-slip pad, this increases friction and improves stability.

Benefits of technology

It enables the phone to be stably fixed during cycling, reducing shaking and enhancing the stability and durability of the handlebar bracket and handlebars, making it easier for cyclists to observe the route.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a handlebar bracket supporting seat which comprises a mounting seat, a spherical connecting piece and a bandage, the mounting base comprises a supporting part and two deformable clamping parts connected to the two sides of the supporting part, the front side of the mounting base is provided with a mounting area and a binding area, the spherical connecting piece is arranged in the mounting area and located on the supporting part, the binding area is provided with two band penetrating holes for the binding band to penetrate through, and the two band penetrating holes are located in the two deformable clamping parts respectively; an anti-skid pad is arranged on the rear side of the mounting seat, and another anti-skid pad is arranged on the rear side of the mounting seat; one end of the binding band is fixedly connected to one band penetrating hole, and when the other end of the binding band penetrates through the other band penetrating hole and is tightly pressed on the binding area, the two deformable clamping parts are bent and deformed under the action of tensioning force, so that the mounting seat is tightly attached to the surface of the handlebar to form a binding state. The binding belt tightly presses the binding area during fixing, the matching stability of the mounting base and the handlebar is improved, and the mounting base can be tightly attached to the surface of the handlebar only by pulling the other end of the binding belt.
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Description

TECHNICAL FIELD

[0001] The utility model relates to handlebar support field technology especially is a handlebar support support seat. BACKGROUND

[0002] In the process of long-distance riding, the rider often needs to navigate through the mobile phone to determine the riding route, in order to facilitate the rider to observe the route in real time during riding, a special mobile phone holder is generally arranged at the handlebar of the bicycle to fix the mobile phone.

[0003] In the prior art, the handlebar fixing structure of the mobile phone holder for the handlebar includes two semicircular arc-shaped fixing rings, one end of the two arc-shaped fixing rings is hingedly connected, the other end of the two arc-shaped fixing rings is provided with a bolt, and a nut is threadedly connected on the bolt, the two arc-shaped fixing rings are clamped on the handlebar by tightening the nut to complete the fixing, in this structure, the size of the arc-shaped fixing ring is usually fixed, which makes it difficult for the handlebar fixing structure to adapt to handlebars of different diameters, and the size specification of the arc-shaped fixing ring needs to be selected as required, the universality is poor, and the handlebar fixing structure is in a state of shaking for a long time, which makes the arc-shaped fixing ring easy to wear the handlebar, and thus the handlebar fixing structure is easy to be loosened from the handlebar after a certain period of use, which brings inconvenience to use.

[0004] Therefore, it is necessary to design a new technical scheme to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] Therefore, the utility model provides a handlebar support support seat, which comprises a mounting seat, a support part and two deformable clamping parts connected to the two sides of the support part, a binding area is arranged on the front side of the mounting seat, the binding area is provided with two belt penetrating holes, one end of a belt is fixedly connected to one of the belt penetrating holes, when the other end of the belt penetrates through the other belt penetrating hole and is pressed against the binding area, the two deformable clamping parts are bent and deformed under the action of the tension force, so that the mounting seat is tightly attached to the surface of the handlebar to form a binding state, that is, the belt tightens the support part and the deformable clamping parts, so that after the mobile terminal holder is installed on the spherical connecting piece, the shaking of the mobile terminal holder is reduced, and thus the mobile phone can be stably fixed on the mobile terminal holder during riding, which is convenient for the rider to watch, and one end of the belt is fixed, so that in the binding process, the other end only needs to be pulled to realize that the mounting seat is tightly attached to the surface of the handlebar, the structure design is ingenious, and the setting of the anti-skid pad can increase the friction force between the mounting seat and the handlebar, and further improve the stability of the mounting seat and the handlebar.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A handlebar bracket support includes a mounting base, a ball joint connected to the mounting base, and a strap for securing the mounting base to the handlebars; wherein:

[0008] The mounting base includes a support portion and two deformable clamping portions connected to both sides of the support portion. The front side of the mounting base has an installation area and a binding area located next to the installation area. The spherical connector is disposed in the installation area and located on the support portion. The binding area is provided with two threading holes for the strap to pass through. The two threading holes are respectively located on the two deformable clamping portions. The rear side of the mounting base is provided with an anti-slip pad.

[0009] One end of the strap is fixedly connected to one of its threading holes. When the other end of the strap passes through another threading hole and is pressed against the binding area, the two deformable clamping parts bend and deform under the tension of the strap, so that the mounting seat is in close contact with the handlebar surface to form a binding state.

[0010] As a preferred embodiment, the support portion is integrally formed with the two deformable clamping portions; or, the two deformable clamping portions are fitted onto both sides of the support portion.

[0011] As a preferred embodiment, the support portion and the deformable clamping portion are connected by an arc-shaped connecting portion, and the extending directions of the two deformable clamping portions intersect the axis of the spherical connector.

[0012] As a preferred embodiment, the side of the binding area away from the installation area has a forward-protruding side, and the movement of the binding strap is restricted between the side and the spherical connector.

[0013] As a preferred embodiment, the width between the side and the spherical connector is equal to the width of the strap hole, and the width of the strap is greater than or equal to the width of the strap hole.

[0014] As a preferred embodiment, the inner wall surface of the strap hole is provided with a fitting slope for the strap to fit.

[0015] As a preferred embodiment, the anti-slip pad is located between the two threaded holes. The anti-slip pad includes a central pad and two side pads connected to both sides of the central pad. The central pad is located on the rear side of the support portion, and the side pads are located on the rear side of the deformable clamping portion. A deformation groove is provided between the side pads and the central pad to allow the anti-slip pad to deform along with the deformable clamping portion. The width of the side pads is greater than the width of the central pad.

[0016] As a preferred embodiment, the rear side of the mounting base has a forward-facing mounting cavity for injection molding the anti-slip pad, and the anti-slip pad is injection molded into the mounting cavity and protrudes rearward from the mounting cavity.

[0017] As a preferred embodiment, the front sidewall of the mounting cavity is provided with an annular embedding groove along its periphery. The front sidewall of the mounting cavity is provided with a plurality of strip-shaped embedding grooves and a plurality of embedding holes in the area enclosed by the annular embedding groove. Correspondingly, the front side of the anti-slip pad has a first injection-molded part, which is embedded in the annular embedding groove, the strip-shaped embedding groove, and the embedding holes.

[0018] As a preferred embodiment, the spherical connector is integrally formed on the mounting base. The front sidewall of the mounting cavity is provided with a hollow groove that extends into the spherical connector. A partition is provided in the hollow groove. Correspondingly, the front side of the anti-slip pad has a second injection-molded part, which can be embedded in the hollow groove and hold the partition.

[0019] As a preferred embodiment, the inner ring surface of the annular embedding groove has two first inclined surfaces arranged inwards, the two first inclined surfaces being arranged opposite to each other, and the first injection molding part being constrained by the first inclined surfaces.

[0020] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0021] The main features include a mounting base comprising a support section and two deformable clamping sections connected to both sides of the support section. A binding area is provided on the front side of the mounting base, with two strap holes. One end of the strap is fixedly connected to one of the strap holes. When the other end of the strap passes through the other strap hole and is pressed against the binding area, the two deformable clamping sections bend and deform under tension, causing the mounting base to be tightly attached to the handlebar surface, forming a binding state. In other words, the strap tightens both the support section and the deformable clamping sections, thereby reducing the wobbling of the mobile terminal bracket after it is installed on the spherical connector. As a result, the mobile phone can be stably fixed on the mobile terminal bracket during riding, making it convenient for the rider to view. Furthermore, since one end of the strap is fixed, only the other end needs to be pulled during the binding process to achieve a tight fit between the mounting base and the handlebar surface. The structure is ingeniously designed. In addition, the anti-slip pad increases the friction between the mounting base and the handlebar, further improving the stability of the fit between the mounting base and the handlebar.

[0022] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0023] Figure 1This is a perspective view of a preferred embodiment of the present invention;

[0024] Figure 2 This is an exploded view of a preferred embodiment of the present invention;

[0025] Figure 3 This is a perspective view of another preferred embodiment of the present invention;

[0026] Figure 4 This is a cross-sectional schematic diagram of a preferred embodiment of the present invention;

[0027] Figure 5 This is another cross-sectional schematic diagram of a preferred embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram illustrating the use of a preferred embodiment of the present invention;

[0029] Figure 7 This is a schematic diagram of the strap assembly of a preferred embodiment of the present invention;

[0030] Figure 8 This is a three-dimensional schematic diagram of a preferred embodiment of the present invention.

[0031] Explanation of reference numerals in the attached diagram:

[0032] 10. Mounting base; 11. Support unit;

[0033] 12. Deformable clamping part; 13. Side;

[0034] 14. Arc-shaped connection; 15. Fitting bevel;

[0035] 101. Installation area;

[0036] 102. Binding area; 103. Strap hole;

[0037] 104. Mounting cavity; 105. Annular embedding groove;

[0038] 1051. Inner torus; 1052. First oblique surface;

[0039] 1053. Outer torus; 1054. Second oblique surface;

[0040] 106. Strip-shaped embedding groove; 107. Embedding hole;

[0041] 108. Hollow channel; 109. Partition plate;

[0042] 20. Spherical connector; 30. Handlebar;

[0043] 40. Straps; 50. Anti-slip mat;

[0044] 51. Central pad; 52. Side pad;

[0045] 501. Deformation groove; 502. First injection molding section;

[0046] 503. Second Injection Molding Section. Detailed Implementation

[0047] First, it should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0048] Please refer to Figures 1 to 8 As shown, it illustrates the specific structure of various preferred embodiments of the present invention, including a mounting base 10, a spherical connector 20 connected to the mounting base 10, and a strap 40 for fixing the mounting base 10 to the handlebar 30.

[0049] The mounting base 10 includes a support portion 11 and two deformable clamping portions 12 connected to both sides of the support portion 11. The front side of the mounting base 10 has a mounting area 101 and a binding area 102 located beside the mounting area 101. The spherical connector 20 is disposed in the mounting area 101 and located on the support portion 11. The binding area 102 has two threading holes 103 for the strap 40 to pass through. The two threading holes 103 are respectively located on the two deformable clamping portions 12. An anti-slip pad 50 is provided on the rear side of the mounting base 10. One end of the strap 40 is fixedly connected to one of its strap holes 103. When the other end of the strap 40 passes through another strap hole 103 and is pressed against the binding area 102, the two deformable clamping parts 12 bend and deform under the tension of the strap 40, so that the mounting base 10 is tightly attached to the surface of the handlebar 30 to form a binding state. During the pressing process, the anti-slip pad 50 on the rear side of the mounting base 10 will be tightly attached to the surface of the handlebar, increasing the friction.

[0050] See Figure 1 and Figure 2 As shown, a side 13 protrudes forward from the side of the binding area 102 away from the mounting area 101. The movement of the strap 40 is restricted between the side 13 and the spherical connector 20. The side 13 prevents the strap 40 from shifting on the mounting base 10. At the same time, the side 13 increases the thickness of the end of the mounting base 10, thereby enhancing the structural strength of the support 11 and preventing the support 11 from breaking due to stress on the two deformable clamping parts 12. See reference. Figure 8As shown, the mounting area 101 is located in the middle of the mounting base 10. Binding areas 102 are provided on both sides of the mounting area 101. Correspondingly, two straps 40 are provided, and two straps are provided on the side 13. The spherical connector 20 is bound to both sides by the straps 40, which balances the force on the mounting base 10 and makes the stability of the mounting base 10 and the handlebar 30 better.

[0051] See Figure 4 As shown, the support part 11 and the deformable clamping part 12 are connected by an arc-shaped connecting part 14. The extending directions of the two deformable clamping parts 12 intersect the axis of the spherical connector 20, so that in the initial state, the deformable clamping part 12 is closer to the handlebar 30, reducing the deformation of the deformable clamping part 12.

[0052] Preferably, the support part 11 and the two deformable clamping parts 12 are integrally formed, that is, the entire mounting base 10 is made of plastic and has a certain elasticity; the inner wall surface of the strap hole 103 is provided with a fitting slope 15 for the strap 40 to fit against. The fitting slope 15 increases the force-bearing area of ​​the mounting base 10 and makes it tighter under the tension of the strap 40.

[0053] In some other embodiments, the two deformable clamping parts 12 can also be die-cast on both sides of the support part 11. In this way, the deformable clamping parts 12 are made of soft rubber and the support part 11 is made of hard plastic, so that the deformable clamping parts 12 have greater flexibility and a larger contact area, thereby making the mounting base 10 more stable.

[0054] See Figure 1 , Figure 2 and Figure 7 As shown, the width between the side 13 and the spherical connector 20 is equal to the width of the strap hole 103; the width of the strap 40 is greater than or equal to the width of the strap hole 103, and the length of the strap 40 is more than three times the distance between the ends of the two deformable clamping parts 12, ensuring that the length of the strap 40 can wrap around the binding area 102. Both sides of the strap 40 are provided with adhesive surfaces, and the same side of the strap 40 and both sides of the strap 40 can be bonded to each other.

[0055] In this embodiment, as Figure 1 As shown, the wrapping method of the strap 40 is as follows: one end of the strap 40 passes through the strap hole 103 and is then glued and fixed to the strap hole 103 on the same side. The other end of the strap 40 first wraps around the handlebar 30, then passes upward through another strap hole 103 and wraps around the handlebar 30 again. Next, it wraps around the binding area 102, and then both sides of the strap 40 are glued and fixed to each other. In some other embodiments, the wrapping method of the strap 40 is similar to... Figure 1Similar to the previous one, but different in that: the other end of the strap 40 first wraps around the binding area 102, then passes down through another strap hole 103 and wraps around the binding area 102 again, and then wraps around the handle 30 before the two sides of the strap 40 are glued and fixed together.

[0056] See Figures 2 to 5 As shown, the anti-slip mat 50 is located between the two threading holes 103. The anti-slip mat 50 includes a central pad 51 and two side pads 52 connected to both sides of the central pad 51. The central pad 51 is located behind the support part 11, and the side pads 52 are located behind the deformable clamping part 12. A deformation groove 501 is provided between the side pads 52 and the central pad 51 to allow the anti-slip mat 50 to deform along with the deformable clamping part 12. The deformation groove in the anti-slip mat allows it to deform along with the deformable clamping part, preventing clamping marks on the anti-slip mat and improving its service life. (See reference...) Figure 4 Specifically, the width of the side pad 52 is greater than the width of the middle pad 51. When clamping a smaller handlebar 30, both the middle pad 51 and the two side pads 52 can reach the handlebar 30. When clamping a larger handlebar 30, only the two side pads 52 can reach the handlebar 30. The width of the side pad 52 is greater than the width of the middle pad 51. That is, the side pad 52 is made wider to avoid the side pad 52 not being able to fit the handlebar 30 when clamping a larger handlebar 30. This ensures that within the diameter range of the handlebar 30, the anti-slip pad 50 can fit the surface of the handlebar 30 as much as possible.

[0057] In this embodiment, the rear side of the mounting base 10 is provided with a mounting cavity 104 for injection molding the anti-slip pad 50. The anti-slip pad 50 is injection molded into the mounting cavity 104 and protrudes rearward from the mounting cavity 104. The anti-slip pad 50 has a certain thickness. Therefore, when the strap is tightened, it will cause the anti-slip pad 50 to be squeezed against the handlebar surface, increasing the friction. The anti-slip pad 50 protruding from the mounting cavity 104 ensures that the anti-slip pad 50 can fit against the handlebar when the mounting base 10 is pressed, avoiding direct contact between the rear side of the mounting base 10 and the handlebar, which would cause the anti-slip pad 50 to fail. Moreover, the tighter the strap presses the strap area, the tighter the anti-slip pad 50 will be squeezed, thereby increasing the friction between the anti-slip pad 50 and the handlebar.

[0058] The front sidewall of the mounting cavity 104 has an annular embedding groove 105 extending forward. The front sidewall of the mounting cavity 104 has a plurality of strip-shaped embedding grooves 106 and a plurality of embedding holes 107 extending forward in the area enclosed by the annular embedding groove 105. The front side of the anti-slip pad 50 has a first injection-molded part 502, which is embedded in the annular embedding groove 105, the strip-shaped embedding grooves 106, and the embedding holes 107. The arrangement of the annular embedding groove 105, the strip-shaped embedding grooves 106, and the embedding holes 107 improves the stability of the anti-slip pad 50 in conjunction with the mounting base 10. The anti-slip pad 50 may be made of silicone.

[0059] Preferably, the inner ring surface 1051 of the annular embedding groove 105 has two first inclined surfaces 1052 arranged inwards, and the two first inclined surfaces 1052 are arranged opposite to each other. The first injection molding part 502 is constrained by the first inclined surfaces 1052. Correspondingly, the outer ring surface 1053 of the annular embedding groove 105 has a second inclined surface 1054. The arrangement of the first inclined surfaces 1052 and the second inclined surfaces 1054 can prevent the first injection molding part 502 from falling out, and further improve the stability of the anti-slip pad 50 and the mounting base 10.

[0060] In some other embodiments, a mounting groove is provided on the rear side of the mounting base 10, and the anti-slip pad 50 is fixed in the mounting groove by adhesive.

[0061] See Figure 3 and Figure 5 As shown, the spherical connector 20 is integrally formed on the mounting base 10. The front sidewall of the mounting cavity 104 has a hollow groove 108 that extends into the spherical connector 20. A partition 109 is provided in the hollow groove 108. The front side of the anti-slip pad 50 has a second injection-molded part 503. The second injection-molded part 503 is embedded in the hollow groove 108 and clamps the partition 109. The hollow groove 108 and the partition 109 can reduce the weight of the spherical connector 20 and further improve the firmness of the connection between the anti-slip pad 50 and the mounting base 10. The spherical connector 20 is used in conjunction with a mobile terminal bracket (such as a mobile phone bracket). The mobile terminal bracket is mounted on the spherical connector 20 by setting a mating part that cooperates with the spherical connector 20, so that the mobile phone can be stably fixed on the mobile terminal bracket during riding. The anti-slip pad 50 can also reduce the shock of the mobile phone and facilitate the rider's viewing.

[0062] In some other embodiments, the spherical connector 20 is detachably connected to the support portion 11, and a slot is provided on the support portion 11. The rear end of the spherical connector 20 is inserted into the slot and engaged with the slot to fix it in place.

[0063] The key design feature of this utility model is:

[0064] The main features include a mounting base comprising a support section and two deformable clamping sections connected to both sides of the support section. A binding area is provided on the front side of the mounting base, with two strap holes. One end of the strap is fixedly connected to one of the strap holes. When the other end of the strap passes through the other strap hole and is pressed against the binding area, the two deformable clamping sections bend and deform under tension, causing the mounting base to be tightly attached to the handlebar surface, forming a binding state. In other words, the strap tightens both the support section and the deformable clamping sections, thereby reducing the wobbling of the mobile terminal bracket after it is installed on the spherical connector. As a result, the mobile phone can be stably fixed on the mobile terminal bracket during riding, making it convenient for the rider to view. Furthermore, since one end of the strap is fixed, only the other end needs to be pulled during the binding process to achieve a tight fit between the mounting base and the handlebar surface. The structure is ingeniously designed. In addition, the anti-slip pad increases the friction between the mounting base and the handlebar, further improving the stability of the fit between the mounting base and the handlebar.

[0065] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A handlebar bracket support, characterized in that, Includes a mounting base, a ball joint connected to the mounting base, and a strap for securing the mounting base to the handlebars; wherein: The mounting base includes a support portion and two deformable clamping portions connected to both sides of the support portion. The front side of the mounting base has an installation area and a binding area located next to the installation area. The spherical connector is disposed in the installation area and located on the support portion. The binding area is provided with two threading holes for the strap to pass through. The two threading holes are respectively located on the two deformable clamping portions. The rear side of the mounting base is provided with an anti-slip pad. One end of the strap is fixedly connected to one of the strap holes. When the other end of the strap passes through the other strap hole and is pressed against the binding area, the two deformable clamping parts bend and deform under the tension force, so that the mounting seat is in close contact with the handlebar surface to form a binding state.

2. The handlebar bracket support according to claim 1, characterized in that: The support portion is integrally formed with the two deformable clamping portions; or, the two deformable clamping portions are fitted onto both sides of the support portion.

3. The handlebar bracket support according to claim 1, characterized in that: The support portion and the deformable clamping portion are connected by an arc-shaped connecting portion, and the extending directions of the two deformable clamping portions intersect the axis of the spherical connector.

4. A handlebar bracket support according to claim 1, characterized in that: The binding area has a side protruding forward on the side away from the installation area, and the movement of the binding strap is restricted between the side and the spherical connector.

5. A handlebar bracket support according to claim 4, characterized in that: The width between the side and the spherical connector is equal to the width of the strap hole, and the width of the strap is greater than or equal to the width of the strap hole.

6. A handlebar bracket support according to claim 1, characterized in that: The inner wall of the thread hole is provided with a fitting slope for the strap to fit.

7. A handlebar bracket support according to claim 1, characterized in that: The anti-slip pad is located between the two threaded holes. The anti-slip pad includes a central pad and two side pads connected to both sides of the central pad. The central pad is located on the rear side of the support portion, and the side pads are located on the rear side of the deformable clamping portion. A deformation groove is provided between the side pads and the central pad for the anti-slip pad to deform along with the deformable clamping portion. The width of the side pads is greater than the width of the central pad.

8. A handlebar bracket support according to claim 1, characterized in that: The mounting base has a mounting cavity on its rear side for injection molding the anti-slip pad, and the anti-slip pad is injection molded into the mounting cavity and protrudes rearward from the mounting cavity.

9. A handlebar bracket support according to claim 8, characterized in that: The front sidewall of the mounting cavity has an annular embedding groove extending forward. The front sidewall of the mounting cavity has several strip-shaped embedding grooves and several embedding holes extending forward in the area enclosed by the annular embedding groove. Correspondingly, the front side of the anti-slip pad has a first injection-molded part, which is embedded in the annular embedding groove, the strip-shaped embedding groove, and the embedding hole.

10. A handlebar bracket support according to claim 9, characterized in that: The spherical connector is integrally formed on the mounting base. The front side wall of the mounting cavity is provided with a hollow groove that extends into the spherical connector. A partition is provided in the hollow groove. Correspondingly, the front side of the anti-slip pad has a second injection molding part, which can be embedded in the hollow groove and hold the partition.

11. A handlebar bracket support according to claim 9, characterized in that: The inner ring surface of the annular embedding groove has two first inclined surfaces that are arranged inwards. The two first inclined surfaces are arranged opposite to each other, and the first injection molding part is constrained by the first inclined surfaces.