Hub ratchet sleeve convenient to install

Abstract

The utility model relates to the technical field of hub design of bicycle wheels, in particular to a hub ratchet sleeve convenient to install, which comprises a disc seat body, a ratchet ring arranged at one end of the disc seat body, a fluted disc limit ring arranged at the other end of the disc seat body, a fluted disc seat arranged between the rear side of the disc seat body and the fluted disc limit ring, and a ratchet ring arranged on the fluted disc limit ring. The radial size of the ratchet wheel ring is smaller than that of the drum body, the disc seat body can be conveniently installed in the drum body of the flower drum, the fluted disc limiting ring can provide a limiting effect for installation of the fluted disc, meanwhile, the fluted disc is supported when the fluted disc is subjected to axial force, the use stability of the fluted disc is guaranteed, and the service life of the fluted disc is prolonged. The fluted disc seat can be matched with the fluted disc limiting ring to play a role in limiting the fluted disc, the supporting stability of the fluted disc in the using process is guaranteed, and the spline threads are arranged at the end, close to the disc seat body, of the fluted disc seat, so that the convenience of assembling the disc seat body can be improved through the spline threads.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle wheel hub design, in particular to a portable hub ratchet sleeve. Background Art

[0002] For reasons of environmental protection, energy conservation and carbon reduction, or health, many people have switched from riding motorcycles or driving to riding bicycles. Besides being environmentally friendly, riding a bicycle also helps to strengthen the body and relieve stress. Therefore, cycling is a popular sport among modern people. The hub plays a crucial role in ensuring the smooth rotation of bicycle wheels. The speed change system of a variable-speed bicycle can be adjusted to suit the needs of the environment, and each speed change mechanism is paired with a different ratchet seat. The ratchet seat plays a crucial role in the use of the hub, and its sealing stability and reliability are crucial to the use of the hub. The ratchet seat is supported primarily by a ratchet sleeve as a connector, connected to the hub. The question is how to design a more reasonable ratchet seat structure to facilitate installation and provide a more stable support effect. Therefore, a portable hub ratchet sleeve is needed. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a portable hub ratchet sleeve to solve the problem of convenient installation of the ratchet sleeve in the prior art.

[0004] To achieve the above-mentioned and other related purposes, the present invention provides the following technical solutions:

[0005] A portable hub ratchet sleeve, comprising:

[0006] A disc seat body, wherein a ratchet ring is provided at one end of the disc seat body and a toothed disc limiting ring is provided at the other end, wherein the radial dimension of the ratchet ring is smaller than the radial dimension of the drum body, and the radial dimension of the toothed disc limiting ring is larger than the radial dimension of the drum body, and the end surface of the toothed disc limiting ring close to the drum body is a plane;

[0007] A toothed disc seat is arranged between the rear side of the disc seat body and the toothed disc limiting ring. The radial dimension of the toothed disc seat is larger than the radial dimension of the disc seat body, and the radial dimension of the toothed disc seat is smaller than the radial dimension of the toothed disc limiting ring. A spline thread is arranged on one end of the toothed disc seat close to the disc seat body.

[0008] To implement the above technical solution, by setting the radial dimension of the ratchet ring smaller than the radial dimension of the drum body, the disc seat body can be easily installed into the hub drum body. The setting of the sprocket limiting ring can provide a limiting effect for the installation of the sprocket, and at the same time support the sprocket when the sprocket is subjected to axial force, thereby ensuring the stability of the sprocket in use. The setting of the sprocket seat can cooperate with the sprocket limiting ring to limit the sprocket, thereby ensuring the support stability of the sprocket during use. By setting a spline thread at one end of the sprocket seat close to the disc seat body, the spline thread can be used to improve the convenience of assembling the disc seat body.

[0009] In one embodiment of the present invention, a sealing limit seat is further provided on the gear disc seat. The radial dimension of the sealing limit seat is larger than that of the gear disc seat. A threaded connection surface is provided inside the sealing limit seat.

[0010] To implement the above technical solution, the setting of the sealing limit seat can cooperate with the sprocket limit ring to provide a limit support function for the installation of the sprocket, thereby ensuring the support reliability of the sprocket during use.

[0011] In one embodiment of the present invention, a lubrication cavity is provided in the disc seat body, and lubrication limit seats with the same radial size are provided at both ends of the lubrication cavity. The radial size of the lubrication limit seat is smaller than the radial size of the lubrication cavity, and a sealing ring is provided on the outside of the lubrication limit seat.

[0012] To implement the above technical solution, by setting up a lubrication cavity and extending the axial dimension of the lubrication cavity all the way to the gear disc seat, the volume of the lubrication cavity can be increased and a more stable lubrication environment can be provided. The setting of the lubrication limit seat can limit the lubricating liquid so that the lubricating liquid is in the space of the lubrication cavity. A sealing ring is provided on the outside of the lubrication limit seat. The use of the sealing ring can improve the sealing reliability of the lubrication cavity during use.

[0013] In one embodiment of the present invention, a limiting sleeve is further provided on the outer side of the lubricating limiting seat, and the radial dimension of the limiting sleeve is larger than the radial dimension of the lubricating limiting seat.

[0014] To implement the above technical solution, the setting of the limiting sleeve can provide a supporting space for the installation of the central shaft, thereby ensuring the supporting stability of the central shaft after passing through the lubrication cavity.

[0015] In one embodiment of the present invention, a disc seat ring is provided at one end of the gear disc limiting ring away from the disc seat body, the radial dimension of the disc seat ring is smaller than the radial dimension of the gear disc seat, and a smooth curved surface is provided between the outermost end of the disc seat ring and the outer contour of the gear disc limiting ring.

[0016] To implement the above technical solution, the setting of the disc seat ring can provide support for the assembly of the sleeve and improve the stability of the sleeve in use. A smooth curved surface is set between the outermost end of the disc seat ring and the outer contour of the gear disc limiting ring, which can improve the support stability of the gear disc limiting ring when subjected to axial pressure.

[0017] In one embodiment of the present invention, the connecting portion between the root of the gear disc seat and the root of the gear disc limiting ring is a smooth arc-shaped surface.

[0018] To implement the above technical solution, the connecting part between the root of the sprocket seat and the root of the sprocket limiting ring is made into a smooth arc surface. On the one hand, it can improve the connection stability between the sprocket seat and the sprocket limiting ring, and on the other hand, it can prevent the sprocket from being damaged by collision during assembly.

[0019] In one embodiment of the present invention, an internal thread is provided on the inner surface of the ratchet ring.

[0020] By implementing the above technical solution, the provision of the internal thread can facilitate the installation of the ratchet ring.

[0021] As described above, the utility model provides a portable hub ratchet sleeve with the following beneficial effects: by setting the radial dimension of the ratchet ring smaller than the radial dimension of the drum body, the disc seat body can be conveniently installed into the hub drum body; the setting of the sprocket limiting ring can provide a limiting effect for the installation of the sprocket, and at the same time support the sprocket when the sprocket is subjected to axial force, thereby ensuring the stability of the sprocket in use; the setting of the sprocket seat can cooperate with the sprocket limiting ring to limit the sprocket, thereby ensuring the support stability of the sprocket during use; and by setting a spline thread at one end of the sprocket seat close to the disc seat body, the spline thread can be used to improve the convenience of assembling the disc seat body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It shows a schematic structural diagram of a portable hub ratchet sleeve disclosed in an embodiment of the present utility model.

[0023] Figure 2 Shown is a schematic diagram of the sprocket seat structure of the portable hub ratchet sleeve disclosed in an embodiment of the present utility model.

[0024] Figure 3 Shown is a schematic diagram of the disc seat ring structure of the portable hub ratchet sleeve disclosed in an embodiment of the present utility model.

[0025] Component number description

[0026] 1. Disc seat body; 2. Ratchet ring; 3. Sprocket limit ring; 4. Sprocket seat; 5. Spline thread; 6. Sealing limit seat; 7. Lubrication limit seat; 8. Lubrication chamber; 9. Sealing ring; 10. Limit sleeve; 11. Disc seat ring; 12. Sprocket. DETAILED DESCRIPTION

[0027] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other unless there is a conflict.

[0028] See also Figures 1 to 3 The utility model provides a portable hub ratchet sleeve, including a ratchet ring 2 at one end of a hub body 1, and a sprocket limiting ring 3 at the other end. The radial dimension of the ratchet ring 2 is smaller than the radial dimension of the drum body, and the radial dimension of the sprocket limiting ring 3 is larger than the radial dimension of the drum body. The end surface of the sprocket limiting ring 3 close to the drum body is flat, and a sprocket seat 4 is arranged between the rear side of the hub body 1 and the sprocket limiting ring 3. The radial dimension of the sprocket seat 4 is larger than the radial dimension of the hub body 1, and the radial dimension of the sprocket seat 4 is smaller than the radial dimension of the sprocket limiting ring 3. A spline thread 5 is arranged on the end of the sprocket seat 4 close to the hub body 1.

[0029] By setting the radial dimension of the ratchet ring 2 smaller than the radial dimension of the drum body, the disc seat body 1 can be easily installed into the hub drum body. The setting of the sprocket limit ring 3 can provide a limiting effect for the installation of the sprocket 12, and at the same time support the sprocket 12 when the sprocket 12 is subjected to axial force, thereby ensuring the stability of the sprocket 12 in use. The setting of the sprocket seat 4 can cooperate with the sprocket limit ring 3 to limit the sprocket 12, thereby ensuring the support stability of the sprocket 12 during use. By setting a spline thread 5 at one end of the sprocket seat 4 close to the disc seat body 1, the spline thread 5 can be used to improve the convenience of assembling the disc seat body 1.

[0030] A sealing limit seat 6 is also provided on the gear disc seat 4. The radial dimension of the sealing limit seat 6 is larger than the radial dimension of the gear disc seat 4. A threaded connection surface is provided inside the sealing limit seat 6. The setting of the sealing limit seat 6 can cooperate with the gear disc limiting ring 3 to provide limiting support for the installation of the gear disc 12, thereby ensuring the support reliability of the gear disc 12 during use.

[0031] A lubrication cavity 8 is provided in the disc seat body 1, and lubrication limit seats 7 with the same radial dimensions are provided at both ends of the lubrication cavity 8. The radial dimension of the lubrication limit seat 7 is smaller than the radial dimension of the lubrication cavity 8. A sealing ring 9 is provided on the outside of the lubrication limit seat 7. By providing the lubrication cavity 8 and extending the axial dimension of the lubrication cavity 8 to the gear disc seat 4, the volume of the lubrication cavity 8 can be increased and a more stable lubrication environment can be provided. The provision of the lubrication limit seat 7 can limit the lubricating liquid so that the lubricating liquid is in the space of the lubrication cavity 8. A sealing ring 9 is provided on the outside of the lubrication limit seat 7. The use of the sealing ring 9 can improve the sealing reliability of the lubrication cavity 8 during use.

[0032] A limiting sleeve 10 is also provided on the outside of the lubrication limit seat 7. The radial dimension of the limiting sleeve 10 is larger than the radial dimension of the lubrication limit seat 7. The setting of the limiting sleeve 10 can provide support space for the installation of the central axis and ensure the support stability of the central axis after passing through the lubrication cavity 8.

[0033] A disc seat ring 11 is provided at one end of the gear disc limiting ring 3 away from the disc seat body 1. The radial dimension of the disc seat ring 11 is smaller than the radial dimension of the gear disc seat 4. A smooth curved surface is provided between the outermost end of the disc seat ring 11 and the outer contour of the gear disc limiting ring 3. The provision of the disc seat ring 11 can provide support for the assembly of the sleeve and can improve the stability of the sleeve in use. The provision of a smooth curved surface between the outermost end of the disc seat ring 11 and the outer contour of the gear disc limiting ring 3 can improve the support stability of the gear disc limiting ring 3 when subjected to axial pressure.

[0034] The connecting portion between the root of the sprocket seat 4 and the root of the sprocket limiting ring 3 is a smooth arc surface. The connecting portion between the root of the sprocket seat 4 and the root of the sprocket limiting ring 3 is a smooth arc surface. On the one hand, the connection stability between the sprocket seat 4 and the sprocket limiting ring 3 can be improved, and on the other hand, the sprocket 12 can be prevented from being damaged by collision during assembly.

[0035] An internal thread is provided on the inner surface of the ratchet ring 2 , and the provision of the internal thread can facilitate the installation of the ratchet ring 2 .

[0036] The utility model can facilitate the installation of the disc seat body into the hub drum body by setting the radial size of the ratchet ring smaller than the radial size of the drum body. The setting of the sprocket disc limiting ring can provide a limiting effect for the installation of the sprocket disc and at the same time support the sprocket disc when it is subjected to axial force, thereby ensuring the stability of the sprocket disc in use. The setting of the sprocket disc seat can cooperate with the sprocket disc limiting ring to limit the sprocket disc and ensure the support stability of the sprocket disc during use. By setting a spline thread at one end of the sprocket disc seat close to the disc seat body, the spline thread can be used to improve the convenience of assembling the disc seat body.

[0037] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any equivalent modifications or variations made by persons skilled in the art without departing from the spirit and technical concepts disclosed herein shall be encompassed by the claims of the present invention.

Claims

1. A portable hub ratchet sleeve, characterized in that: include: A disc seat body, wherein a ratchet ring is provided at one end of the disc seat body and a toothed disc limiting ring is provided at the other end, wherein the radial dimension of the ratchet ring is smaller than the radial dimension of the drum body, and the radial dimension of the toothed disc limiting ring is larger than the radial dimension of the drum body, and the end surface of the toothed disc limiting ring close to the drum body is a plane; A toothed disc seat is arranged between the rear side of the disc seat body and the toothed disc limiting ring. The radial dimension of the toothed disc seat is larger than the radial dimension of the disc seat body, and the radial dimension of the toothed disc seat is smaller than the radial dimension of the toothed disc limiting ring. A spline thread is arranged on one end of the toothed disc seat close to the disc seat body.

2. The portable hub ratchet sleeve according to claim 1, characterized in that: The toothed disc seat is further provided with a sealing limit seat, the radial dimension of the sealing limit seat is larger than the radial dimension of the toothed disc seat, and a threaded connection surface is provided inside the sealing limit seat.

3. The portable hub ratchet sleeve according to claim 1, characterized in that: A lubrication cavity is provided in the disc seat body, and lubrication limit seats with the same radial size are respectively provided at both ends of the lubrication cavity. The radial size of the lubrication limit seats is smaller than the radial size of the lubrication cavity, and a sealing ring is provided on the outside of the lubrication limit seats.

4. The portable hub ratchet sleeve according to claim 3, characterized in that: A limiting sleeve is further provided on the outer side of the lubricating limiting seat, and the radial dimension of the limiting sleeve is larger than the radial dimension of the lubricating limiting seat.

5. The portable hub ratchet sleeve according to claim 1, characterized in that: A disc seat ring is provided at one end of the toothed disc limiting ring away from the disc seat body. The radial dimension of the disc seat ring is smaller than the radial dimension of the toothed disc seat. A smooth curved surface is provided between the outermost end of the disc seat ring and the outer contour of the toothed disc limiting ring.

6. The portable hub ratchet sleeve according to claim 1, characterized in that: The connecting portion between the root of the gear disc seat and the root of the gear disc limiting ring is a smooth arc surface.

7. The portable hub ratchet sleeve according to claim 1, characterized in that: An internal thread is provided on the inner surface of the ratchet ring.

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