Assembling structure for hub and shaft of bicycle
By setting up reinforcement and limiting mechanisms on the bicycle hub shell, and supporting and limiting components such as reinforcement rods and limiting rings, the bending deformation and offset problems of the hub shell during impact are solved, and structural stability is improved.
Patent Information
- Application Number
- CN202422435237.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-10-09
AI Technical Summary
The existing bicycle hub shell structure is insufficient, and it is prone to bending deformation and offset when impacted on the outside.
Reinforcement mechanism and limiting mechanism are adopted, including upper and lower reinforcement rods, fixing cylinders, slide rods, springs, limit rings and fixing bolts, so as to improve the stability of the hub shell through support and limiting.
It improves the structural stability of the hub shell, prevents bending deformation and offset, and enhances the overall stability of the hub.
Smart Images
Figure CN223072226U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of the structure of a bicycle hub barrel shaft assembly, in particular to a structure of a bicycle hub barrel shaft assembly. Background Art
[0002] The bicycle hub barrel shaft assembly is a very important component in the bicycle wheel set. Its function is to transmit the power of pedaling to the wheel to make the wheel rotate, and then the bicycle runs on the ground. There are also various types of hubs, including hubs for commuting, mountain bike hubs, road bike hubs, and track bike hubs, etc.
[0003] For example, Chinese Patent CN207579448U discloses a structure of a bicycle hub barrel shaft assembly, which includes a hub shell, a ratchet set, a hub axle, and a hub axle connecting piece. The ratchet set includes a ratchet inner part and a ratchet sleeve. The ratchet inner part is axially stopped and circumferentially rotatable and is inserted inside the ratchet sleeve. A ratchet and pawl structure is formed between the outer side wall of the ratchet inner part and the inner side wall of the ratchet sleeve. One end of the ratchet inner part of the ratchet set extends outside the ratchet sleeve and is fixedly inserted inside one end of the hub in a detachable manner. The hub axle is rotatably inserted inside the ratchet inner part of the ratchet set and the hub shell. The hub axle connecting piece can axially stop and position the hub axle with the hub shell and the ratchet set. The utility model saves two bearings, has a low processing requirement for the connection part between the hub shell and the ratchet set, greatly reduces the overall cost, avoids assembly errors and assembly tolerances, improves the service performance of the ratchet set, reduces the failure rate of the bicycle hub, and improves the service life.
[0004] Although the above patent reduces the failure rate of the bicycle hub and improves the service life, the structure outside the hub shell in this patent is simple and the structural stability is general. When an external object impacts either side of the left or right side of the hub shell, the hub shell may be bent and deformed, reducing the structural stability. Summary of the Utility Model
[0005] Aiming at the deficiencies of the prior art, the utility model provides a structure of a bicycle hub barrel shaft assembly, which has the advantages of improving the structural stability of the hub shell, etc., and solves the problems that the structure outside the hub shell is simple, the structural stability is general, when an external object impacts either side of the left or right side of the hub shell, the hub shell may be bent and deformed, reducing the structural stability.
[0006] To achieve the above object, the utility model provides the following technical solutions: A bicycle hub barrel shaft assembly structure, including an axle center, the outer side of the axle center is rotatably connected with a hub shell body through a rotating bearing, the rotating bearing is arranged on the outer side of the axle center, a freewheel body is arranged on the outer side of the right side of the hub shell body, reinforcing mechanisms are arranged on the upper and lower sides of the outer side of the hub shell body, and a limiting mechanism is arranged on the right side of the outer side of the axle center;
[0007] The reinforcing mechanism includes fixed cylinders arranged on the upper and lower sides of the outer side of the hub shell body, a slide rod is slidably connected inside the fixed cylinder, springs are arranged on the opposite sides of the inner cavities of the upper and lower fixed cylinders, the opposite sides of the upper and lower springs are fixedly connected with the opposite sides of the upper and lower slide rods, reinforcing rods are arranged on the opposite sides of the upper and lower slide rods, sliding grooves are respectively opened on the upper and lower sides of the opposite sides of the inner cavity of the hub shell body, and the outer sides of the left and right sides of the reinforcing rod are slidably connected inside the left and right sliding grooves.
[0008] Further, a flywheel is arranged on the outer side of the freewheel body, and the freewheel includes a ratchet sleeve, a rear axle, a ratchet pawl and a torsion spring.
[0009] Further, the reinforcing rod makes a linear up and down movement inside the left and right sliding grooves, and one end of the reinforcing rod is matched with the gap of the sliding groove.
[0010] Further, the slide rod is matched with the gap of the fixed cylinder, and the slide rod makes a linear up and down movement inside the fixed cylinder.
[0011] Further, the limiting mechanism includes a first limiting ring rotatably connected to the outer side of the right side of the axle center through a rotating bearing, the rotating bearing is arranged on the outer side of the axle center, insertion rods are arranged on the upper and lower sides of the left side of the first limiting ring, insertion slots are respectively opened on the upper and lower sides of the right side of the hub shell body, and the left side of the insertion rod is slidably inserted inside the insertion slot.
[0012] Further, the limiting mechanism further includes a second limiting ring rotatably connected to the outer side of the left side of the axle center through a rotating bearing, the rotating bearing is arranged on the outer side of the axle center, threaded holes are respectively opened on the upper and lower sides of the left side of the second limiting ring, fixing bolts are threadedly connected inside the threaded holes, threaded grooves are respectively opened on the upper and lower sides of the left side of the hub shell body, and the outer side of the right side of the fixing bolt is threadedly connected inside the threaded groove.
[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0014] 1. The structure of the bicycle hub cartridge axle set can support the left and right sides of the hub shell body by setting the upper and lower reinforcing rods, which can improve the stability of the hub shell structure. When an external object impacts either side of the left and right sides of the hub shell, the situation of the hub shell bending and deforming can be reduced.
[0015] 2. The structure of the bicycle hub cartridge axle set can limit the hub shell body outside the axis under the interaction of the first limit ring and the second limit ring, reducing the situation of the hub shell body shifting left and right outside the axis and improving the stability of the hub shell body outside the axis. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural diagram of the present utility model;
[0017] Figure 2 is a schematic diagram of the reinforcement mechanism of the present utility model;
[0018] Figure 3 is a schematic diagram of the connection structure of the spring and the fixed cylinder of the present utility model;
[0019] Figure 4 is a schematic diagram of the limit mechanism of the present utility model.
[0020] In the figure: 1 axis, 2 hub shell body, 3 tower base body, 4 reinforcement mechanism, 401 fixed cylinder, 402 slide rod, 403 spring, 404 reinforcing rod, 405 chute, 5 limit mechanism, 501 first limit ring, 502 insertion rod, 503 slot, 504 second limit ring, 505 threaded hole, 506 fixing bolt, 507 threaded groove. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0022] Please refer to Figure 1 , a structure of a bicycle hub cartridge axle set in this embodiment includes an axis 1. The outer side of the axis 1 is rotatably connected to a hub shell body 2 through a rotating bearing. The rotating bearing is arranged on the outer side of the axis 1. A tower base body 3 is arranged on the outer side of the right side of the hub shell body 2. Reinforcement mechanisms 4 are arranged on the upper and lower sides of the outer side of the hub shell body 2. The reinforcement mechanisms 4 improve the stability of the hub shell structure. A limit mechanism 5 is arranged on the right side of the outer side of the axis 1. The limit mechanism 5 improves the stability of the hub shell body 2 outside the axis 1.
[0023] In this embodiment, a flywheel is provided on the outside of the tower base body 3. The tower base includes a ratchet sleeve, a rear axle, a ratchet pawl, and a torsion spring.
[0024] It should be noted that when we step on it, the ratchet pawl will be caught by the ratchet sleeve, and the tower base will start to rotate, thereby driving the rotation of the hub. When the hub is under force and we stop stepping on it, the ratchet sleeve will continue to rotate due to inertia. However, since the ratchets in the ratchet sleeve are inclined, each ratchet will press down the ratchet pawl when passing by the ratchet pawl, and the tower base will be in a relatively static state while the hub is in the attacking position.
[0025] Please refer to Figures 2 to 3 , in order to improve the stability of the hub shell structure, in this embodiment, the reinforcement mechanism 4 includes fixed cylinders 401 provided on the upper and lower sides outside the hub shell body 2. A slide rod 402 is slidably connected inside the fixed cylinder 401. Springs 403 are provided on the opposite sides of the inner cavities of the upper and lower fixed cylinders 401. The opposite sides of the upper and lower springs 403 are fixedly connected to the opposite sides of the upper and lower slide rods 402. Reinforcement rods 404 are provided on the opposite sides of the upper and lower slide rods 402. Slots 405 are opened on the upper and lower sides of the opposite sides inside the hub shell body 2. The outer sides of the left and right sides of the reinforcement rod 404 are slidably connected inside the left and right slots 405.
[0026] In this embodiment, the reinforcement rod 404 makes a linear up-and-down movement inside the left and right slots 405. One end of the reinforcement rod 404 is matched with the gap of the slot 405, and the slide rod 402 is matched with the gap of the fixed cylinder 401. The slide rod 402 makes a linear up-and-down movement inside the fixed cylinder 401. When the hub shell body 2 rotates outside the axis 1, the springs 403 inside the upper and lower fixed cylinders 401 can be stretched, and the upper and lower reinforcement rods 404 move in opposite directions. By providing the upper and lower reinforcement rods 404, the left and right sides of the hub shell body 2 can be supported.
[0027] It should be noted that it can improve the stability of the hub shell structure. When an external object impacts either side of the left and right sides of the hub shell, the situation of the hub shell being bent and deformed can be reduced.
[0028] Please refer to Figure 4 , in order to improve the stability of the hub shell body 2 outside the axis 1, in this embodiment, the limiting mechanism 5 includes a first limiting ring 501 rotatably connected to the outside of the right side of the axis 1 through a rotating bearing. The rotating bearing is provided on the outside of the axis 1. Insertion rods 502 are provided on the upper and lower sides of the left side of the first limiting ring 501. Slots 503 are opened on the upper and lower sides of the right side of the hub shell body 2. The left sides of the insertion rods 502 are slidably inserted inside the slots 503.
[0029] In this embodiment, the limiting mechanism 5 further includes a second limiting ring 504 rotatably connected to the outer side of the left side of the shaft center 1 through a rotating bearing. The rotating bearing is arranged on the outer side of the shaft center 1. Thread holes 505 are formed through the upper and lower sides on the left side of the second limiting ring 504. A fixing bolt 506 is threadedly connected inside the thread holes 505. Thread grooves 507 are formed on the upper and lower sides on the left side of the hub shell body 2. The outer side of the right side of the fixing bolt 506 is threadedly connected inside the thread grooves 507. The hub shell body 2 can be limited on the outer side of the shaft center 1 through the first limiting ring 501 and the second limiting ring 504, reducing the situation that the hub shell body 2 deflects left and right on the outer side of the shaft center 1.
[0030] It should be noted that by twisting the upper and lower fixing bolts 506, the upper and lower fixing bolts 506 can be disassembled respectively, so as to remove the hub shell body 2 from the outer side of the shaft center 1.
[0031] The working principle of the above embodiment is as follows:
[0032] (1) When the hub shell body 2 rotates on the outer side of the shaft center 1, the springs 403 inside the upper and lower fixing cylinders 401 can be stretched, and the upper and lower reinforcing rods 404 move in opposite directions. By arranging the upper and lower reinforcing rods 404, the left and right sides of the hub shell body 2 can be supported, improving the stability of the hub shell structure. When an external object impacts any one side of the left and right sides of the hub shell, the situation of the hub shell bending and deforming can be reduced.
[0033] (2) The hub shell body 2 can be limited on the outer side of the shaft center 1 through the first limiting ring 501 and the second limiting ring 504, reducing the situation that the hub shell body 2 deflects left and right on the outer side of the shaft center 1. By twisting the upper and lower fixing bolts 506, the upper and lower fixing bolts 506 can be disassembled respectively, so as to remove the hub shell body 2 from the outer side of the shaft center 1.
[0034] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.
[0035] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model.
Claims
1. A structural design of a bicycle hub cartridge axle group, including an axle center (1), characterized in that: On the outside of the axle center (1), a hub shell body (2) is rotatably connected through a rotating bearing. The rotating bearing is arranged on the outside of the axle center (1). A freewheel base body (3) is arranged on the outside of the right side of the hub shell body (2). Reinforcing mechanisms (4) are arranged on the upper and lower sides of the outside of the hub shell body (2). A limiting mechanism (5) is arranged on the right side of the outside of the axle center (1). The reinforcing mechanism (4) includes fixed cylinders (401) arranged on the upper and lower sides of the outside of the hub shell body (2). A slide rod (402) is slidably connected inside the fixed cylinder (401). Springs (403) are arranged on the opposite sides of the inner cavities of the upper and lower fixed cylinders (401). The opposite sides of the upper and lower springs (403) are fixedly connected to the opposite sides of the upper and lower slide rods (402). Reinforcing rods (404) are arranged on the opposite sides of the upper and lower slide rods (402). Chute grooves (405) are opened on the upper and lower sides of the opposite sides of the inner cavity of the hub shell body (2). The outer sides of the left and right sides of the reinforcing rod (404) are slidably connected inside the left and right chute grooves (405).
2. The structure of a bicycle hub barrel shaft group according to claim 1, wherein: A freewheel is arranged on the outside of the freewheel base body (3). The freewheel base includes a ratchet sleeve, a rear axle, a ratchet pawl, and a torsion spring.
3. The structure of a bicycle hub barrel shaft group according to claim 1, characterized in that: The reinforcing rod (404) makes a linear up-and-down movement inside the left and right chute grooves (405). One end of the reinforcing rod (404) is in clearance fit with the chute groove (405).
4. A structure of a bicycle hub barrel shaft group according to claim 1, characterized in that: The slide rod (402) is in clearance fit with the fixed cylinder (401). The slide rod (402) makes a linear up-and-down movement inside the fixed cylinder (401).
5. The structure of a bicycle hub barrel shaft group according to claim 1, characterized in that: The limiting mechanism (5) includes a first limiting ring (501) rotatably connected to the outside of the right side of the axle center (1) through a rotating bearing. The rotating bearing is arranged on the outside of the axle center (1). Plug rods (502) are arranged on the upper and lower sides of the left side of the first limiting ring (501). Slot holes (503) are opened on the upper and lower sides of the right side of the hub shell body (2). The left side of the plug rod (502) is slidably inserted inside the slot hole (503).
6. The structure of a bicycle hub barrel shaft group according to claim 5, characterized in that: The limiting mechanism (5) further includes a second limiting ring (504) rotatably connected to the outside of the left side of the axle center (1) through a rotating bearing. The rotating bearing is arranged on the outside of the axle center (1). Threaded holes (505) are penetrated and opened on the upper and lower sides of the left side of the second limiting ring (504). A fixing bolt (506) is threadedly connected inside the threaded hole (505). Threaded grooves (507) are opened on the upper and lower sides of the left side of the hub shell body (2). The outer side of the right side of the fixing bolt (506) is threadedly connected inside the threaded groove (507).
Citation Information
Patent Citations
Bicycle flower -drum section of thick bamboo axle group establishes structure
CN207579448U