Spoke capable of preventing inside and outside from falling off

Abstract

The utility model belongs to the technical field of spokes, and particularly relates to an inside and outside anti-falling type spoke which comprises a strip body, anti-outside-falling limiting blocks are integrally formed at the left end and the right end of the strip body, and sleeves tightly attached to the inner ends of the adjacent anti-outside-falling limiting blocks are arranged on the left side and the right side of the strip body in a sleeved mode. The inner end of each sleeve is provided with an anti-inner-falling limiting block arranged on the outer surface of the strip body in a sleeving mode. The anti-outward-falling limiting blocks are firmly installed at the left end and the right end of the strip body in an integrated forming machining mode, and the anti-outward-falling limiting blocks play a role in limiting the outer ends of the adjacent sleeves at the left end and the right end of the strip body; when the spoke is assembled, the sleeve is limited to slide inwards along the strip body through the inner-falling-preventing limiting block, the sleeve is limited to slide outwards and inwards through the outer-falling-preventing limiting block and the inner-falling-preventing limiting block, the overall stability of assembly of the sleeve and the strip body is improved, and the problem that potential safety hazards are caused due to the fact that an existing spoke enables the sleeve to slide inwards and inwards easily is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of spokes, and particularly relates to an inner and outer anti - detachment spoke. Background Art

[0002] A spoke is a supporting member installed between the wheel axle and the wheel rim of a wheel. By relying on the spokes, the same radius spacing is maintained at any position within the gap between the wheel axle and the wheel rim, so that the wheel axle is kept at the center of the circle, thus forming a complete spoke - type wheel frame. Such wheels are commonly used on various bicycle wheels. Glue is applied between the inner wall of the sleeve and the outer walls on both sides of the spoke to ensure the firmness of the tight connection between the sleeve and the spoke.

[0003] When the wheel rotates on the ground to drive the vehicle forward, the spoke will cause the sleeve to swing outwards under the traction of the centrifugal force generated by the rotation of the wheel. The vehicle body exerts weight on the wheel axle, and the wheel axle squeezes the sleeve due to gravity, causing the sleeve to swing inwards along the spoke, resulting in the glue between the inner wall of the sleeve and the outer wall of the spoke breaking free. The sleeve will slip outwards or inwards on both sides of the spoke, rendering the sleeve ineffective and easily causing the wheel to fall apart, posing a safety hazard. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and solve the problem that the existing spokes are prone to cause safety hazards due to the inward and outward slippage of the sleeve.

[0005] The technical solution adopted by the utility model to solve its technical problem is: an inner and outer anti - detachment spoke, including a spoke body:

[0006] Anti - outer - detachment limit blocks are integrally formed at both left and right ends of the spoke body. Sleeves are sleeved on both left and right sides of the spoke body and are closely attached to the inner ends of the adjacent anti - outer - detachment limit blocks. Anti - inner - detachment limit blocks are arranged at the inner ends of the sleeves and are sleeved on the outer surface of the spoke body.

[0007] First - stage sections and second - stage sections are formed on the outer surfaces of both left and right sides of the spoke body from outside to inside and are located inside the adjacent sleeves. One - shaped glue injection grooves are formed on both upper and lower sides between the first - stage section and the adjacent second - stage section. Assembly grooves are formed on both front and back sides between the first - stage section and the adjacent second - stage section. Transverse diversion grooves that penetrate through to the inside of the spoke body are formed between the front and back adjacent assembly grooves on the same side. Longitudinal diversion grooves that penetrate through to the inside of the spoke body are formed between the front and back adjacent one - shaped glue injection grooves on the same side. The longitudinal diversion groove and the adjacent transverse diversion groove on the same side are in a cross - through shape.

[0008] In a preferred technical solution of the present utility model, a limiting ring is provided at the inner end of each anti-inner-disengagement limiting block and is sleeved on the outer surface of the strip body. Limiting grooves are formed at both the front and rear ends between the inner wall of the limiting ring and the outer surface of the strip body. A limiting pin fixed to the inner wall of the adjacent limiting ring is embedded in the limiting groove.

[0009] In a preferred technical solution of the present utility model, an edge inclined slope penetrating through the edge between the adjacent first stepped section and the second stepped section on the same side is formed around the linear glue injection groove. The edge inclined slope inclines at an angle between 20 and 30 degrees in the direction close to the linear glue injection groove.

[0010] In a preferred technical solution of the present utility model, arched elastic plugs fixed at both the front and rear ends of the inner wall of the sleeve are embedded in the adjacent assembly grooves. An annular glue injection groove is formed between the first stepped section and the adjacent anti-outer-disengagement limiting block. The annular glue injection groove is located outside the assembly groove and is in communication with the interior of the adjacent assembly groove.

[0011] In a preferred technical solution of the present utility model, the diameter of the first stepped section is larger than that of the second stepped section.

[0012] In a preferred technical solution of the present utility model, a first connection part is formed on the outer side of the outer surface of the left sleeve, and a second connection part is formed on the outer side of the outer surface of the right sleeve.

[0013] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0014] The edge inclined slope facilitates the injection of glue into the linear glue injection groove. The glue will flow sequentially along the transverse diversion groove and the longitudinal diversion groove inside the linear glue injection groove. The intersection between the transverse diversion groove and the longitudinal diversion groove inside the strip body is in communication with each other to facilitate the glue to flow into the assembly groove along the linear glue injection groove, and finally fill the annular glue injection groove with glue.

[0015] The diameters of both the first stepped section and the second stepped section are different, presenting a diameter drop between the first stepped section and the second stepped section. An annular glue injection groove forms an inwardly concave annular space between the same-side outer anti-disengagement limiting block and the first stepped section, creating an uneven height difference on the left and right surfaces of the strip body, increasing the friction between the left and right sides of the strip body and the sleeve, facilitating the smooth flow of glue along the annular glue injection groove, the first stepped section, and the second stepped section, enhancing the fluidity of the glue flowing along the left and right sides of the strip body. The inner wall of the sleeve closely contacts the surface between the same-side first stepped section and the second stepped section. The glue solidifies on the inner wall of the sleeve, inside the annular glue injection groove, and on the surfaces of the first stepped section and the second stepped section. The glue tightly adheres the arched elastic plug in the corresponding assembly groove. The assembly groove and the arched elastic plug are used in combination to fasten the sleeve on the surfaces of the corresponding first stepped section and the second stepped section, making the sleeve more firmly assembled on the left and right sides of the strip body, and improving the stability of the assembly of the sleeve and the strip body;

[0016] The limiting ring presses the inner anti-disengagement limiting block against the inner end of the adjacent sleeve, strengthening the inner anti-disengagement limiting block. The limiting pin and the limiting groove are used in combination to block the inner end of the sleeve with the limiting ring. The inner anti-disengagement limiting block restricts the sleeve from sliding inward along the strip body, preventing the limiting ring from being eroded by the external environment to the internal structure of the spoke and blocking the glue from overflowing, thereby greatly improving the assembly strength of the sleeve and the strip body and enhancing the forming quality and durability of the spoke;

[0017] After the sleeve is assembled, the outer anti-disengagement limiting blocks are firmly installed at the left and right ends of the strip body through an integral molding process. The outer anti-disengagement limiting blocks play a limiting role on the outer ends of the adjacent sleeves at the left and right ends of the strip body, preventing the sleeves from slipping outward along the left and right sides of the strip body;

[0018] Relying on the outer anti-disengagement limiting block and the inner anti-disengagement limiting block to restrict the sleeve from slipping outward and inward, achieving the effect of preventing the sleeve from disengaging inside and outside, and improving the overall stability of the assembly of the sleeve and the strip body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is a partially enlarged view of Structure A of the present utility model;

[0021] Figure 3 is a view of the outer surfaces of the first stepped section and the second stepped section of the present utility model;

[0022] Figure 4 is a longitudinal sectional view effect diagram of the internal structure of the strip body of the present utility model;

[0023] Figure 5 is a transverse sectional view effect diagram of the internal structure of the strip body of the present utility model;

[0024] Figure 6 Partial sectional view effect diagram of the internal structure of the strip body of the present utility model;

[0025] Figure 7 Distribution effect diagram of the transverse diversion groove and the longitudinal diversion groove of the present utility model.

[0026] In the figure: 1. Strip body; 2. Sleeve; 3. Inner anti-disengagement limit block; 4. Limit ring; 5. Limit pin; 6. Limit groove; 7. Outer anti-disengagement limit block; 8. Arch-shaped elastic plug; 9. Assembly groove; 10. Transverse diversion groove; 11. Longitudinal diversion groove; 12. Linear glue injection groove; 13. Edge inclined slope; 14. Annular glue injection groove; 15. First stepped section; 16. Second stepped section; 17. First connection part; 18. Second connection part. Specific implementation mode

[0027] Example 1, please refer to Figure 1-7 , the present utility model provides a technical solution: an internal and external anti-disengagement spoke, including a strip body 1: anti-disengagement limit blocks are integrally formed at both left and right ends of the strip body 1, sleeves 2 are sleeved on both left and right sides of the strip body 1 and are closely attached to the inner ends of the adjacent outer anti-disengagement limit blocks, and inner anti-disengagement limit blocks 3 sleeved on the outer surface of the strip body 1 are arranged at the inner ends of the sleeves 2; first stepped sections 15 and second stepped sections 16 placed inside the adjacent sleeves 2 are respectively opened on the outer surfaces of both left and right sides of the strip body 1 from outside to inside, linear glue injection grooves 12 are respectively opened on both upper and lower sides between the first stepped section 15 and the adjacent second stepped section 16, assembly grooves 9 are respectively opened on both front and rear sides between the first stepped section 15 and the adjacent second stepped section 16, transverse diversion grooves 10 penetrating into the interior of the strip body 1 are opened between the interiors of two adjacent assembly grooves 9 on the same side in the front and rear, and longitudinal diversion grooves 11 penetrating into the interior of the strip body 1 are opened between the interiors of two adjacent linear glue injection grooves 12 on the same side; limit rings 4 sleeved on the outer surface of the strip body 1 are arranged at the inner ends of the inner anti-disengagement limit blocks 3, limit grooves 6 are respectively opened at both front and rear ends between the inner wall of the limit ring 4 and the outer surface of the strip body 1, and limit pins 5 fixed to the inner wall of the adjacent limit ring 4 are embedded in the limit grooves 6. The limit rings 4 are sleeved on both left and right ends of the strip body 1 and are located between the second stepped sections 16 on both left and right sides of the strip body 1, so that the limit pins 5 are inserted into the corresponding limit grooves 6. The limit grooves 6 limit the movement of the limit pins 5, ensuring that the limit rings 4 are tightly assembled on the surface of the strip body 1.

[0028] Embodiment 2, further described according to the above embodiment: Use a glue injection device to align a glue injection needle and inject glue into the upper linear glue injection groove 12. An edge inclined slope 13 penetrating through the edge between the adjacent first stepped section 15 and the second stepped section 16 on the same side is provided around the linear glue injection groove 12. The edge inclined slope 13 inclines at an angle between 20 and 30 degrees in the direction close to the linear glue injection groove 12. The edge inclined slope 13 forms a space for buffering the flow of glue corresponding to the periphery of the linear glue injection groove 12. Glue accumulates inside the edge inclined slope 13 to prevent overflow. The edge inclined slope 13 facilitates injecting glue into the linear glue injection groove 12. The glue flows downward along the corresponding longitudinal diversion groove 11 inside the linear glue injection groove 12 into the lower linear glue injection groove 12. At the same time, the glue flows into the transverse diversion groove 10 inside the longitudinal diversion groove 11. The glue flows from the transverse diversion groove 10 into the corresponding assembly groove 9. The glue will flow sequentially along the transverse diversion groove 10 and the longitudinal diversion groove 11 inside the linear glue injection groove 12. The longitudinal diversion groove 11 and the adjacent transverse diversion groove 10 on the same side are in a cross-through shape. The intersections between the transverse diversion groove 10 and the longitudinal diversion groove 11 located inside the strip body 1 are interconnected to facilitate the glue flowing along the linear glue injection groove 12 into the assembly groove 9. As the glue gradually accumulates in the linear glue injection groove 12, the transverse diversion groove 10, the longitudinal diversion groove 11, and the assembly groove 9, the glue will overflow to the surface of the corresponding edge inclined slope 13 inside the lower linear glue injection groove 12. The glue flows from the surface of the edge inclined slope 13 to the surfaces of the first stepped section 15 and the second stepped section 16 and contacts the inner wall of the sleeve 2. The glue flows out of the assembly groove 9 into the annular glue injection groove 14, facilitating the smooth flow of the glue along the annular glue injection groove 14, the first stepped section 15, and the second stepped section 16, enhancing the fluidity of the glue flowing along the left and right sides of the strip body 1. Finally, the annular glue injection groove 14 is filled with glue, improving the convenience of injecting glue into the spokes and improving the process of injecting glue.

[0029] Embodiment 3, further described according to the above embodiments: The sleeve 2 is sleeved from the left and right ends of the strip body 1, and the sleeve 2 is moved inward from the left and right ends of the strip body 1. The sleeve 2 sequentially contacts the first stepped section 15 and the second stepped section 16, so that the sleeve 2 is sleeved on the surface between the corresponding first stepped section 15 and the second stepped section 16. The diameter of the first stepped section 15 is larger than that of the second stepped section 16. The diameters of the first stepped section 15 and the second stepped section 16 are different, and there is a diameter drop between the first stepped section 15 and the second stepped section 16. The inner wall of the sleeve 2 is in interference fit with the first stepped section 15, and the inner wall of the sleeve 2 is in clearance fit with the second stepped section 16. The inner wall of the sleeve 2 covers the periphery of the annular glue injection groove 14, and the sleeve 2 shields the annular glue injection groove 14. The annular glue injection groove 14 forms an inwardly concave annular space between the anti-external-disengagement limiting block 7 on the same side and the first stepped section 15, so that the left and right surfaces of the strip body 1 form an uneven height difference, increasing the friction force between the sleeve 2 and the left and right sides of the strip body 1. The inner wall of the sleeve 2 is in close contact with the surface between the corresponding first stepped section 15 and the second stepped section 16. Glue is applied to the inner wall of the sleeve 2 on the surface between the first stepped section 15 and the second stepped section 16. The glue solidifies on the inner wall of the sleeve 2, inside the annular glue injection groove 14, and on the surfaces of the first stepped section 15 and the second stepped section 1%. Arch-shaped elastic plugs 8 fixed to the front and rear ends of the inner wall of the sleeve 2 are embedded in the adjacent assembly grooves 9. An annular glue injection groove 14 is provided between the first stepped section 15 and the adjacent anti-external-disengagement limiting block 7. The annular glue injection groove 14 is located outside the assembly groove 9, and the annular glue injection groove 14 communicates with the inside of the adjacent assembly groove 9. The arch-shaped elastic plug 8 undergoes elastic deformation with the movement of the sleeve 2 and the adjacent first stepped section 15 and second stepped section 16. The arch-shaped elastic plug 8 is pushed into the corresponding assembly groove 9, and the glue tightly adheres the arch-shaped elastic plug 8 in the corresponding assembly groove `9. The assembly groove 9 and the arch-shaped elastic plug 8 are used in cooperation to fasten the sleeve 2 to the surface of the corresponding first stepped section 15 and second stepped section 16, making the sleeve 2 more firmly assembled on the left and right sides of the strip body 1. The sleeve 2 contacts the outer end of the corresponding limiting ring 4, and the limiting ring 4 presses the anti-internal-disengagement limiting block 3 against the inner end of the adjacent sleeve 2. The limiting ring 4 reinforces the anti-internal-disengagement limiting block 3. The limiting pin 5 and the limiting groove 6 are used in cooperation to block the inner end of the sleeve 2 with the limiting ring 4. The anti-internal-disengagement limiting block 3 restricts the sleeve 2 from sliding inward along the strip body 1, so that the limiting ring 4 prevents the external environment from eroding the internal structure of the spoke, preventing the glue from overflowing. Thereby, the assembly strength of the sleeve 2 and the strip body 1 is greatly improved, the forming quality and durability of the spoke are enhanced, the stability of the assembly of the sleeve 2 and the strip body 1 is improved, and the assembly process is improved.

[0030] Embodiment 4, further described according to the above embodiments: After the sleeve 2 is assembled, the outer-removal prevention limit blocks 7 are firmly installed at the left and right ends of the strip body 1 through an integral molding process. The outer-removal prevention limit blocks 7 play a limiting role on the outer ends of the adjacent sleeves 2 at the left and right ends of the strip body 1, and the outer-removal prevention limit blocks 7 prevent the sleeves 2 from slipping outwards along the left and right sides of the strip body 1. A first connection portion 17 is provided on the outer side of the outer surface of the left sleeve 2, and a second connection portion 18 is provided on the outer side of the outer surface of the right sleeve 2. The sleeves 2 on the left and right sides of the strip body 1 respectively rely on the first connection portion 17 and the second connection portion 18 to tightly assemble the left and right ends of the strip body 1 with other assembly surfaces. Considering the above effects, the outer-removal prevention limit blocks 7 and the inner-removal prevention limit blocks 3 are relied on to limit the sleeves 2 from slipping outwards and inwards, achieving the effect of preventing the sleeves 2 from coming off both inside and outside, and improving the overall stability of the assembly of the sleeves 2 and the strip body 1.

Claims

1. An inner and outer anti - detachment spoke, comprising a spoke body (1), characterized in that: At both the left and right ends of the spoke body (1), anti - outer - detachment limit blocks are integrally formed. Sleeves (2) are sleeved on both the left and right sides of the spoke body (1), and the inner ends of the sleeves (2) are closely attached to the inner ends of the adjacent anti - outer - detachment limit blocks. Anti - inner - detachment limit blocks (3) that are sleeved on the outer surface of the spoke body (1) are provided at the inner ends of the sleeves (2); On both the left and right outer surfaces of the spoke body (1), a first stepped section (15) and a second stepped section (16) that are located inside the adjacent sleeves (2) are formed from the outside to the inside. On both the upper and lower sides between the first stepped section (15) and the adjacent second stepped section (16), linear glue - injection grooves (12) are formed. On both the front and rear sides between the first stepped section (15) and the adjacent second stepped section (16), assembly grooves (9) are formed. A transverse diversion groove (10) that penetrates into the inside of the spoke body (1) is formed between the front and rear adjacent assembly grooves (9) on the same side. A longitudinal diversion groove (11) that penetrates into the inside of the spoke body (1) is formed between the front and rear adjacent linear glue - injection grooves (12) on the same side. The longitudinal diversion groove (11) and the adjacent transverse diversion groove (10) on the same side are in a cross - through shape.

2. The internal and external anti - detachment spoke according to claim 1, characterized in that: At the inner ends of the anti - inner - detachment limit blocks (3), limit ring - circles (4) that are sleeved on the outer surface of the spoke body (1) are provided. Limiting grooves (6) are formed at both the front and rear ends between the inner wall of the limit ring - circle (4) and the outer surface of the spoke body (1). Limiting pins (5) that are fixed to the inner wall of the adjacent limit ring - circle (4) are inlaid inside the limiting grooves (6).

3. The internal and external anti - detachment spoke according to claim 1, characterized in that: Around the linear glue - injection groove (12), an edge inclined slope (13) that penetrates through the edge between the adjacent first stepped section (15) and second stepped section (16) on the same side is formed. The edge inclined slope (13) inclines at an angle between 20 and 30 degrees in the direction close to the linear glue - injection groove (12).

4. The inner and outer anti - detachment spoke according to claim 1, characterized in that: Arch - shaped elastic plugs (8) that are inlaid inside the adjacent assembly grooves (9) are fixed at both the front and rear ends of the inner wall of the sleeve (2). An annular glue - injection groove (14) is formed between the first stepped section (15) and the adjacent anti - outer - detachment limit block (7). The annular glue - injection groove (14) is located outside the assembly groove (9), and the annular glue - injection groove (14) communicates with the inside of the adjacent assembly groove (9).

5. The internal and external anti - detachment spoke according to claim 1, characterized in that: The diameter of the first stepped section (15) is larger than the diameter of the second stepped section (16).

6. The inner and outer anti - detachment spoke according to claim 1, wherein: A first connection part (17) is formed on the outer surface of the left sleeve (2), and a second connection part (18) is formed on the outer surface of the right sleeve (2).

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