Integrated die-casting bicycle hub

Abstract

The invention relates to the technical field of hubs, in particular to an integrated die-casting bicycle hub which comprises a side plate and a connecting ring, the connecting ring is connected to one end of the side plate, a mounting cavity is formed between the side plate and the connecting ring, a supporting assembly is arranged on the inner wall of the side plate and located in the mounting cavity, and the side plate, the connecting ring and the supporting assembly are integrally formed. And the situation that the tire is damaged by a welding seam of the rim can be reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of a hub, in particular to an integrated die-casting bicycle hub. BACKGROUND

[0002] The hub comprises a hub, spokes, a wheel rim and a tire, one end of the spoke is connected with the hub, the other end of the spoke is connected with the wheel rim, the tire is sleeved on the outer wall of the wheel rim, the wheel rim is a core load-bearing structure of the wheel, the wheel rim is a circular structure, the tire comprises an inner tire and an outer tire, a groove is formed in the outer wall of the wheel rim, the inner tire is installed on the outer wall of the wheel rim and located in the groove, and the outer tire surrounds the inner tire, and the tire lip of the outer tire is clamped into the wheel lip of the wheel rim.

[0003] At present, the production mode of the wheel rim is to generate a long strip-shaped structure through extrusion, then to bend the long strip-shaped structure into a ring-shaped structure, and finally to weld the two ends of the ring-shaped structure, and the welding seam at the splicing position is uneven. Since the bicycle wheel rim is prone to deformation after long-term use, the tire of the bicycle is easily punctured by the welding seam at the splicing position of the wheel rim, thereby affecting the service life of the bicycle tire and the safety of driving. SUMMARY

[0004] In order to reduce the damage of the welding seam of the wheel rim to the tire, the application provides an integrated die-casting bicycle hub.

[0005] The application provides an integrated die-casting bicycle hub, which adopts the following technical scheme: The integrated die-casting bicycle hub comprises side plates and a connecting ring, the connecting ring is connected to one end of the side plate, an installation cavity is formed between the side plate and the connecting ring, a support assembly is arranged on the inner wall of the side plate and located in the installation cavity, and the side plate, the connecting ring and the support assembly are integrally formed.

[0006] By adopting the above technical scheme, the two side plates, the connecting ring and the support assembly are integrally formed, compared with the structure formed by extrusion and bending and then welded at the two ends of the structure, the application is integrally formed, so as to reduce the generation of the welding seam, thereby reducing the situation that the tire is punctured by the welding seam of the wheel rim, and the integrally formed mode can improve the structural stability of the wheel rim, and the shape of the connecting ring can also be set according to specific conditions.

[0007] Preferably, a groove is formed in the side wall of the side plate, the groove is located at the top of the side plate, and the groove is arranged along the periphery of the side plate.

[0008] By adopting the technical scheme, the supporting piece is matched and clamped on the top surface of the supporting assembly, the inner tube sleeve is arranged on the outer wall of the supporting piece, the supporting piece provides a smoother mounting structure for the inner tube, the two side plates are respectively provided with a groove on the inner side, the groove is located on the top of the side plate, the groove is arranged along the side plate, the outer tube is arranged outside the inner tube, and the tire lip of the outer tube is clamped into the groove, so that the outer tube is locked with the side plate.

[0009] Preferably, the connecting ring is a wave-shaped ring, the connecting ring includes a protruding part protruding outward and a recessed part recessed inward, and a mounting hole is arranged through the top surface of the connecting ring and located at the bottom end inside the protruding part.

[0010] By adopting the technical scheme, one end of the spoke is connected with the hub, the other end of the spoke extends into the connecting ring through the mounting hole, and then the spoke cap is threadedly connected to the part of the spoke extending into the connecting ring, compared with the case that the spoke is connected with the recessed part, the spoke is connected with the protruding part in the application, so that the length of the spoke can be reduced, thereby saving materials, and the length of the spoke is shorter, so that the bending of the middle part of the spoke can be reduced when the two ends of the spoke are stressed, the connecting ring of the prior art is a ring-shaped ring, the tension of the spoke is uniformly distributed, stress is concentrated at the impact point when single-point impact occurs, and deformation is more likely to occur, but in the application, the tension of the spoke is concentrated at the top end of the protruding part, a rigid support point is formed at the concentrated anchoring area of the spoke, the recessed part is a flexible deformation area and can absorb impact energy, and the impact force is dispersed by adjacent recessed parts, so that deformation can be reduced.

[0011] Preferably, the mounting seat is fixed inside the connecting ring and located at the bottom end inside the protruding part, and the top surface of the mounting seat is a neat plane, and the mounting hole extends through the top surface of the mounting seat.

[0012] By adopting the technical scheme, one end of the spoke extends out of the top surface of the mounting seat through the mounting hole, and then the spoke cap is threadedly connected to the part of the spoke extending out of the top surface of the mounting seat, the bottom surface of the spoke cap abuts against the top surface of the mounting seat, the top surface of the mounting seat is a neat plane, so that the bottom surface of the spoke cap can better abut against the top surface of the mounting seat, and the connection stability between the spoke and the mounting seat is improved.

[0013] Preferably, the area of the bottom surface of the mounting seat is greater than the area of the top surface of the mounting seat.

[0014] By adopting the technical scheme, the area of the bottom surface of the mounting seat is greater than the area of the top surface of the mounting seat, so that the connection area of the mounting seat and the connecting ring can be increased, and the connection stability between the mounting seat and the connecting ring is improved.

[0015] Preferably, the supporting assembly includes a main supporting plate, the bottom surface of the main supporting plate is fixed at the top end inside the recessed part, and the long side of the supporting part is perpendicular to the top end of the recessed part.

[0016] Through the above technical scheme, under the action of the main support plate, the pressure received by the tire is transmitted to the top end of the recess through the main support plate, the load received by the top end of the recess is redistributed to the two bottom ends of the recess, the top end of the recess and the two bottom ends of the recess form a triangular structure, the triangle has stability, so that the connecting ring structure is more stable, and the situation that the connecting ring is easily deformed under stress is reduced.

[0017] Preferably, the support assembly further comprises a secondary support plate group, the secondary support plate group comprises a secondary support plate, and the secondary support plate is arranged obliquely, and the long side of the secondary support plate is not perpendicular to the top end section of the recess.

[0018] Through the above technical scheme, the secondary support plate is arranged obliquely, after the inner tire and the outer tire are installed, the inner tire needs to be inflated, when the inner tire is inflated, pressure is generated on the main support plate and the secondary support plate, then the main support plate and the secondary support plate transmit the pressure to the rim, the secondary support plate is arranged obliquely, and the pressure is obliquely applied to the recess. Compared with the case that the long side of the secondary support plate is perpendicular to the top end section of the recess, the present application converts the radial pressure into an axial component force, reduces the force acting on the connecting ring in the radial direction, and thus reduces the situation that the rim is deformed due to excessive pressure during inflation. Correspondingly, after the secondary support plate is subjected to other pressure, the pressure can also be converted into an axial component force, and the situation that the rim is deformed is reduced.

[0019] Preferably, the area of the bottom surface of the secondary support plate is greater than the area of the top surface of the secondary support plate.

[0020] Through the above technical scheme, the area of the bottom surface of the secondary support plate is greater than the area of the top surface of the secondary support plate, so as to increase the connection area between the secondary support plate and the connecting ring, and thus improve the connection stability between the secondary support plate and the connecting ring, and reduce the situation that the connection between the secondary support plate and the connecting ring is damaged due to excessive pressure.

[0021] Preferably, the secondary support plate group has a plurality of groups, the plurality of secondary support plate groups are arranged along the circumference of the connecting ring, and the oblique directions of the two adjacent secondary support plate groups are opposite.

[0022] Through the above technical scheme, the oblique directions of the secondary support plates in the two adjacent secondary support plate groups are opposite, so that the axial component forces generated by the two adjacent secondary support plate groups can interact with each other, the axial component forces received by the rim are balanced, and the situation that the rim is deformed after the pressure is applied to the rim can be further reduced.

[0023] Preferably, the main support plate has a plurality of groups, the plurality of main support plates are arranged along the circumference of the connecting ring, and the secondary support plate group is located between the two adjacent main support plates.

[0024] By adopting the technical scheme, the plurality of main support plates are arranged along the connecting ring, the vice support plate groups are located between the two adjacent main support plates, and the two adjacent vice support plate groups are symmetrically arranged along the main support plate between the two vice support plate groups, so that the overall structure of the support assembly is more coordinated, the force borne by the connecting ring is more balanced, and the deformation of the connecting ring is reduced.

[0025] To sum up, the present application has at least one of the following beneficial technical effects: 1. The two side plates, the connecting ring and the support assembly are integrally formed, compared with the prior art structure formed by extrusion and bending, and the structure is welded at the two ends, the present application is integrally formed, so that the welding seam is reduced, the tire is prevented from being pierced by the welding seam of the rim, and the structure stability of the rim is improved, and the shape of the connecting ring can be set according to the specific situation.

[0026] 2. One end of the spoke is connected with the hub, the other end of the spoke passes through the mounting hole and extends into the connecting ring, and then the spoke cap is threadedly connected to the spoke extending into the connecting ring, compared with the case that the spoke is connected with the recess, the spoke is connected with the convex part in the present application, the length of the spoke is reduced, so that the material is saved, and the length of the spoke is shorter, when the two ends of the spoke are stressed, the bending of the middle part of the spoke is reduced, the connecting ring of the prior art is a ring, the tension of the spoke is uniformly distributed, the stress is concentrated on the impact point when single-point impact occurs, and deformation is more likely to occur, but in the present application, the tension of the spoke is concentrated on the top end of the convex part, the spoke concentrated anchoring area forms a rigid support point, the recess is a flexible deformation area, and can absorb impact energy, the impact force is dispersed by the adjacent recess, so that deformation is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a side structure schematic diagram of an embodiment of the present application.

[0028] Figure 2 is a top view of an embodiment of the present application.

[0029] Figure 3 is a partial sectional view of the present application.

[0030] Figure 4 is Figure 2 is an enlarged view of A in FIG.

[0031] Figure 5 is a sectional view of the present application.

[0032] Figure 6 is an enlarged view of B in FIG.

[0033] Explanation of reference signs: 1, side plate; 11, mounting cavity; 12, groove; 2, connecting ring; 21, protruding part; 22, recessed part; 3, support assembly; 31, main support plate; 311, connecting part; 312, support part; 32, auxiliary support plate group; 321, auxiliary support plate; 4, mounting seat; 41, mounting hole. DETAILED DESCRIPTION

[0034] The following will be described in detail in combination with the accompanying drawings. Figures 1-6 The application is further described in detail.

[0035] The embodiment of the application discloses an integrated die-casting bicycle hub.

[0036] Referring to Figure 1 and Figure 2 , the integrated die-casting bicycle hub comprises a rim, the rim comprises side plates 1 and a connecting ring 2, the side plates 1 are annular plates, there are two side plates 1, the two side plates 1 are arranged in parallel relative to each other, the connecting ring 2 is arranged between the two side plates 1, the connecting ring 2 is located at one end of the side plates 1, a mounting cavity 11 is formed between the two side plates 1 and the connecting ring 2, a support assembly 3 is arranged between the two side plates 1, the top surface of the side plate 1 is higher than the top surface of the support assembly 3, the support assembly 3 is located in the mounting cavity 11, the two side plates 1, the connecting ring 2 and the support assembly 3 are integrally formed, compared with the prior art, the structure formed by extrusion and bending is welded at both ends, the application is integrally formed, so that the generation of welds can be reduced, and the situation that the tire is punctured at the weld of the rim can be reduced, and the structure stability of the rim can be improved by the integrally formed mode.

[0037] Referring to Figure 3 , a support sheet (not shown in the drawing) is arranged between the two side plates 1, the support sheet is matched and connected to the top surface of the support assembly 3, an inner tube sleeve is arranged on the outer wall of the support sheet, the support sheet provides a more smooth mounting structure for the inner tube, grooves 12 are arranged on the inner sides of the two side plates 1 respectively, the grooves 12 are located at the top of the side plates 1, the grooves 12 are arranged along the side plates 1, an outer tube sleeve is arranged outside the inner tube, the lip of the outer tube is clamped into the groove 12, so that the outer tube and the side plate 1 are locked.

[0038] Referring to Figure 2 and Figure 4The connecting ring 2 is integrally formed with the wheel rim, and the shape of the connecting ring 2 can be set according to specific conditions. In the embodiment of the application, the connecting ring 2 is a wave-shaped ring, and the connecting ring 2 includes a protruding part 21 protruding outward and a recessed part 22 recessed inward. An installation seat 4 is fixed inside the connecting ring 2. The installation seat 4 is integrally formed with the connecting ring 2. The installation seat 4 is located at the bottom end inside the protruding part 21. The installation seat 4 has a plurality of installation seats 4, and the number of the installation seats 4 is adapted to the number of the protruding part 21. The plurality of installation seats 4 are distributed in the protruding part 21 close to the installation seats 4. The installation seat 4 is an elliptical table, and the bottom area of the installation seat 4 is larger than the top area of the installation seat 4. Therefore, the connecting area of the installation seat 4 and the connecting ring 2 can be improved, and the connection stability between the installation seat 4 and the connecting ring 2 is improved.

[0039] The installation seat 4 has an installation hole 41 penetrating through the top surface of the installation seat 4. The installation hole 41 extends through the bottom surface of the connecting ring 2. One end of the spoke is connected to the hub. The other end of the spoke extends out of the top surface of the installation seat 4 through the installation hole 41. Then, the spoke cap is threadedly connected to the part of the spoke extending out of the top surface of the installation seat 4. The bottom surface of the spoke cap abuts against the top surface of the installation seat 4. The installation seat 4 is an elliptical table. Therefore, the top surface of the installation seat 4 is a neat plane, so that the bottom surface of the spoke cap can better abut against the top surface of the installation seat 4, and the connection stability between the spoke and the installation seat 4 is improved.

[0040] Compared with the case that the spoke is connected to the recessed part 22, in the application, the spoke is connected to the protruding part 21, so that the length of the spoke can be reduced, thereby saving materials. In addition, the length of the spoke is shorter, so that the bending of the middle part of the spoke can be reduced when the two ends of the spoke are stressed. In the prior art, the connecting ring 2 is a ring-shaped ring, and the tension of the spoke is uniformly distributed. When a single-point impact occurs, the stress is concentrated at the impact point, and deformation is more likely to occur. In the application, the tension of the spoke is concentrated at the top end of the protruding part 21, and the concentrated anchoring area of the spoke forms a rigid support point. The recessed part 22 is a flexible deformation area, which can absorb impact energy. The impact force is dispersed by the adjacent recessed part 22, so that deformation can be reduced.

[0041] Referring to Figure 5 and Figure 6 The support assembly 3 includes a main support plate 31. The main support plate 31 includes a connecting part 311 and a support part 312. The bottom surface of the main support plate 31 is fixed at the top end inside the recessed part 22. The long side of the support part 312 is perpendicular to the top end of the recessed part 22. The wide side of the support part 312 is parallel to the wide side of the connecting ring 2. The connecting part 311 has two connecting parts 311, which are arranged at the two ends of the support part 312. One side of each of the two connecting parts 311 is connected to the side plate 1 close to the connecting part 311, so that the main support plate 31 is fixed between the two side plates 1. The bottom surface of the main support plate 31 is fixed to the top surface of the connecting ring 2.

[0042] The width of the connecting part 311 gradually increases from the support part 312 to the side plate 1, the area of the connecting part 311 near one end of the side plate 1 is larger than the area of the connecting part 311 near one end of the support part 312, thereby increasing the connecting area with the side plate 1, improving the connecting stability between the connecting part 311 and the side plate 1, and correspondingly, the thickness of the main support plate 31 gradually increases from top to bottom, the area of the bottom surface of the main support plate 31 is larger than the area of the top surface of the main support plate 31, thereby increasing the connecting area with the connecting ring 2, improving the connecting stability between the main support plate 31 and the connecting ring 2, at the same time, the connecting area between the main support plate 31 and the connecting ring 2 is larger, so that the load on the main support plate 31 can be more evenly distributed on the top end of the recessed part 22, the load on the top end of the recessed part 22 is redistributed to the two bottom ends of the recessed part 22, the top end of the recessed part 22 and the two bottom ends of the recessed part 22 form a triangular structure, the triangle has stability, thereby making the structure of the connecting ring 2 more stable, and reducing the situation that the connecting ring 2 is easily deformed under stress.

[0043] With reference to Figure 5 and Figure 6 , the main support plate 31 has a plurality of main support plates 31 arranged along the connecting ring 2, and the support assembly 3 further comprises a plurality of auxiliary support plate groups 32, the number of the auxiliary support plate groups 32 is adapted to the number of the main support plate 31, and the plurality of auxiliary support plate groups 32 are arranged along the connecting ring 2, the auxiliary support plate group 32 is arranged between the two adjacent main support plates 31, and the auxiliary support plate group 32 comprises an auxiliary support plate 321, the number of the auxiliary support plate 321 is determined according to specific conditions, in the embodiment of the application, the auxiliary support plate group 32 has two auxiliary support plates 321, and the two auxiliary support plates 321 are respectively fixed on the top end of the two adjacent recessed parts 22, and the two long edges of the auxiliary support plate 321 are respectively fixed on the inner wall of the adjacent side plate 1.

[0044] The auxiliary support plate 321 is arranged obliquely, the wide edge of the auxiliary support plate 321 is parallel to the wide edge of the connecting ring 2, the long edge of the auxiliary support plate 321 is not perpendicular to the top end of the recessed part 22, the oblique direction and angle of the two auxiliary support plates 321 in the same auxiliary support plate group 32 are consistent, and the two auxiliary support plates 321 are parallel, after the inner tire and the outer tire are installed, the inner tire needs to be inflated, the main support plate 31 and the auxiliary support plate 321 generate pressure when the inner tire is inflated, then the main support plate 31 and the auxiliary support plate 321 transmit the pressure to the rim, the auxiliary support plate 321 is arranged obliquely, the pressure is obliquely applied to the recessed part 22, compared with the case that the long edge of the auxiliary support plate 321 is perpendicular to the top end of the recessed part 22, the radial pressure is converted into an axial component force in the application, the force acting on the connecting ring 2 in the radial direction is reduced, thereby reducing the case that the rim is deformed due to excessive pressure during inflation, correspondingly, the auxiliary support plate 321 can also convert the pressure into an axial component force after being subjected to other pressure, thereby reducing the case that the rim is deformed.

[0045] The tilt directions of the two adjacent sub-support plates 321 in the two adjacent sub-support plate groups 32 are opposite, and the two adjacent sub-support plate groups 32 are symmetrically arranged along the main support plate 31 between the two sub-support plate groups 32, so that the axial forces generated by the two adjacent sub-support plate groups 32 can interact with each other to balance the axial forces acting on the rim, so that after the pressure acts on the rim, the deformation of the rim can be further reduced.

[0046] From top to bottom, the width of the sub-support plate 321 gradually increases, and the area of the bottom surface of the sub-support plate 321 is larger than the area of the top surface of the sub-support plate 321, thereby increasing the connection area between the sub-support plate 321 and the connecting ring 2, and further improving the connection stability between the sub-support plate 321 and the connecting ring 2, and reducing the damage to the connection between the sub-support plate 321 and the connecting ring 2 due to the large pressure.

[0047] The above are preferred embodiments of the present application, and the embodiments are only an explanation of the present application, and do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. One-piece die-cast bicycle wheel hub, characterized in that: The invention comprises a side plate (1) and a connecting ring (2), wherein the connecting ring (2) is connected to one end of the side plate (1), an installation cavity (11) is formed between the side plate (1) and the connecting ring (2), a support assembly (3) is provided on the inner wall of the side plate (1), and the support assembly (3) is located in the installation cavity (11), and the side plate (1), the connecting ring (2) and the support assembly (3) are integrally formed.

2. The one-piece die-cast bicycle hub according to claim 1, characterized in that: A groove (12) is provided on the side wall of the side plate (1), the groove (12) is located at the top of the side plate (1), and the groove (12) is arranged along a circumference of the side plate (1).

3. The one-piece die-cast bicycle hub according to claim 1, characterized in that: The connecting ring (2) is a wave-shaped ring, comprising a protruding portion (21) protruding outward and a recessed portion (22) recessed inward. A mounting hole (41) is provided through the top surface of the connecting ring (2), and the mounting hole (41) is located at the bottom end of the protruding portion (21).

4. The one-piece die-cast bicycle hub according to claim 3, characterized in that: A mounting seat (4) is fixed inside the connecting ring (2). The mounting seat (4) is located at the bottom end inside the protruding portion (21). The top surface of the mounting seat (4) is a neat plane, and the mounting hole (41) extends through the top surface of the mounting seat (4).

5. The one-piece die-cast bicycle hub according to claim 4, characterized in that: The bottom surface area of ​​the mounting seat (4) is larger than the top surface area of ​​the mounting seat (4).

6. The one-piece die-cast bicycle hub according to claim 3, characterized in that: The support assembly (3) includes a main support plate (31), the bottom surface of the main support plate (31) is fixed to the top end inside the recessed portion (22), and the long side of the support portion (312) is perpendicular to the top section of the recessed portion (22).

7. The one-piece die-cast bicycle hub according to claim 6, characterized in that: The support assembly (3) also includes a secondary support plate group (32), and the secondary support plate group (32) includes a secondary support plate (321). The secondary support plate (321) is arranged obliquely, and the long side of the secondary support plate (321) is not perpendicular to the top section of the recessed portion (22).

8. The one-piece die-cast bicycle hub according to claim 7, characterized in that: The area of ​​the bottom surface of the auxiliary support plate (321) is larger than the area of ​​the top surface of the auxiliary support plate (321).

9. The one-piece die-cast bicycle hub according to claim 7, characterized in that: There are multiple auxiliary support plate groups (32), and the multiple auxiliary support plate groups (32) are arranged along a circle of the connecting ring (2), and the inclination directions of two adjacent auxiliary support plate groups (32) are opposite.

10. The one-piece die-cast bicycle hub according to claim 9, characterized in that: There are multiple main support plates (31), and the multiple main support plates (31) are arranged along a circle of the connecting ring (2), and the auxiliary support plate group (32) is located between two adjacent main support plates (31).

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