CN219029674U

CN219029674U - Sprocket group mechanism

Info

Publication number: CN219029674U
Application number: CN202223267297.7U
Authority: CN
Inventors: 邱益波; 林青; 白明夫; 陈庆财
Original assignee: Huizhou Jingjiuwang Cemented Carbide Co ltd
Current assignee: Huizhou Jingjiuwang Cemented Carbide Co ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-05-16
Anticipated expiration: 2032-12-07

Abstract

The utility model discloses a chain wheel group mechanism, in particular to the technical field of transmission equipment, the chain wheel group mechanism comprises a main chain wheel, an idler wheel is arranged on the inner surface of the main chain wheel, a fixing plate is fixedly connected to the inner wall of the main chain wheel, a fixing device is arranged on the outer surface of the main chain wheel, the fixing device comprises a bolt, a first threaded hole is formed in the outer surface of the main chain wheel, the outer surface of the bolt is in threaded connection with the inner wall of the threaded hole, a threaded ring is in threaded connection with the outer surface of the bolt, a first disc is arranged on the outer surface of the main chain wheel, a round hole is formed in the outer surface of the first disc, and a rectangular rod is fixedly connected with the inner wall of the main chain wheel.

Description

Sprocket group mechanism

Technical Field

The utility model relates to the technical field of transmission equipment, in particular to a chain wheel group mechanism.

Background

The main chain wheel is a mechanical part meshed with the chain and transmitting power, and the bicycle is driven in a mode that the pedal is stepped by a user, and the power of the pedal is transmitted by the chain and the main chain wheel set mechanism to realize wheel rotation so as to enable the bicycle to move.

The inventor finds that the main chain wheel and the part of the chain of the bicycle can be damaged due to long-time contact friction in the long-time use process of the bicycle, the outer surface of the main chain wheel can be broken, the normal use of the main chain wheel group and the chain can be influenced, the running of the bicycle is influenced, and potential safety hazards can be caused.

In order to solve the problems that the outer surface of a main chain wheel is damaged, possibly broken, and the normal use of a main chain wheel set and a chain affects the running of the bicycle and potential safety hazards possibly occur due to the fact that the main chain wheel and the chain are damaged due to long-time contact friction in the long-time use process of the bicycle, the main chain wheel damaged in the main chain wheel set part is replaced in the prior art, so that safety accidents caused by the fact that the main chain wheel is damaged in the running process of the bicycle are prevented.

Disclosure of Invention

The utility model provides a chain wheel set mechanism for solving the problems that the normal use of a main chain wheel set and a chain is influenced by the damage of the outer surface of a main chain wheel due to long-time contact friction of a part of the main chain wheel and the chain in the long-time use process of a bicycle, and potential safety hazards are possibly caused.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a sprocket group mechanism, includes the main sprocket, the internal surface of main sprocket is provided with the idler, the surface of main sprocket is provided with fixing device, fixing device includes the bolt, the screw hole has been seted up to the surface of main sprocket, the inner wall of screw hole and the surface threaded connection of bolt, the surface of main sprocket is provided with first disc, the round hole has been seted up to the surface of first disc, the surface of bolt and the inner wall sliding connection of round hole, the surface threaded connection of bolt has the screwed ring.

The effects achieved by the components are as follows: the first disc is fixed on the outer surface of the main sprocket through the bolt, the threaded hole, the round hole and the threaded ring to strengthen and protect the outer surface of the main sprocket, so that the service life of the main sprocket is prolonged, and the frequency of replacing the main sprocket in the process of using the bicycle is reduced.

Preferably, the inner wall fixedly connected with fixed plate of main sprocket, the inner wall fixedly connected with rectangular rod of main sprocket, the surface of rectangular rod and the surface fixed connection of fixed plate.

The effects achieved by the components are as follows: the fixing plate can be reinforced by fixedly connecting the rectangular rod to the bending part of the inner wall of the main chain wheel and the fixing plate so as to prevent deformation caused by long-time use.

Preferably, a first annular groove is formed in the outer surface of the main chain wheel, and a circular ring is inserted into the inner wall of the first annular groove in a sliding mode.

The effects achieved by the components are as follows: the circular ring can be detached and installed at any time through the first annular groove.

Preferably, the inner wall of the first annular groove is sized and shaped to fit the outer surface of the annular ring.

The effects achieved by the components are as follows: the ring may be secured to the outer surface of the main sprocket by inserting the ring into the inner wall of the first annular groove.

Preferably, the outer surface of the circular ring is fixedly connected with a second disc.

The effects achieved by the components are as follows: the second disc can protect the chain meshed with the outer surface of the main chain, and the phenomenon that the chain is subjected to external collision and abrasion is reduced.

Preferably, the outer surface of the second disc is provided with a protecting device, the protecting device comprises a U-shaped sheet, and the outer surface of the second disc is provided with a second annular groove.

The effects achieved by the components are as follows: the second annular groove allows the lubrication oil to remain in the second annular groove when the lubrication oil is added to the main chain, reducing the number of times the lubrication oil needs to be added to the main chain.

Preferably, the inner wall of the second annular groove is provided with a rectangular notch, a rectangular block is inserted into the inner wall of the rectangular notch in a sliding mode, and the outer surface of the rectangular block is fixedly connected with the outer surface of the U-shaped piece.

The effects achieved by the components are as follows: the U-shaped piece can be fixed on the outer surface of the second disc by inserting the rectangular block into the inner wall of the rectangular notch to protect the chain in the second disc and prevent the chain from falling off in the process of bicycle movement.

In summary, the beneficial effects of the utility model are as follows:

can consolidate the fixed plate through the crooked department with rectangular bar fixed connection at the inner wall of main sprocket and fixed plate and prevent long-time use and produce deformation, consolidate the protection increase main sprocket's life reduction at the number of times of using the bicycle in-process to main sprocket with first disc fixed at main sprocket's surface through bolt, screw hole, round hole and screwed ring.

Drawings

FIG. 1 is a schematic partial construction of a main sprocket of the present utility model.

Fig. 2 is a partial structural schematic view of the fixing plate of the present utility model.

Fig. 3 is a schematic partial structural view of a first threaded bore of the present utility model.

Fig. 4 is a schematic partial structure of the first disc of the present utility model.

Fig. 5 schematically illustrates a partial structure of a second disc according to the present utility model.

Reference numerals illustrate:

1. a main sprocket; 2. a fixing device; 3. a protective device; 4. an idler; 5. a fixing plate; 21. a threaded hole; 22. a bolt; 23. a threaded ring; 24. a first disc; 25. a round hole; 26. a rectangular bar; 27. a first annular groove; 28. a second disc; 29. a circular ring; 31. a second annular groove; 32. a rectangular notch; 33. rectangular blocks; 34. u-shaped piece.

Detailed Description

Referring to fig. 1, fig. 2 and fig. 3, this embodiment discloses a sprocket group mechanism, including main sprocket 1, the internal surface of main sprocket 1 is provided with idler 4, the surface of main sprocket 1 is provided with fixing device 2, fixing device 2 includes bolt 22, threaded hole 21 has been seted up to the surface of main sprocket 1, the inner wall of threaded hole 21 and the surface threaded connection of bolt 22, the surface of main sprocket 1 is provided with first disc 24, round hole 25 has been seted up to the surface of first disc 24, the surface of bolt 22 and the inner wall sliding connection of round hole 25, the surface threaded connection of bolt 22 has screwed ring 23, consolidate the protection through bolt 22, threaded hole 21, round hole 25 and screwed ring 23 with the surface of first disc 24 at main sprocket 1 and increase main sprocket 1's life and reduce the number of times of changing main sprocket 1 in the use bicycle.

Referring to fig. 2, 3 and 4, in this embodiment: the inner wall fixedly connected with fixed plate 5 of main sprocket 1, the inner wall fixedly connected with rectangle pole 26 of main sprocket 1, the surface of rectangle pole 26 and the surface fixed connection of fixed plate 5 can consolidate fixed plate 5 through the crooked department of inner wall at main sprocket 1 and fixed plate 5 with rectangle pole 26 fixed connection and prevent long-time use and produce deformation.

Referring to fig. 2, 3 and 4, in this embodiment: the outer surface of the main chain wheel 1 is provided with a first annular groove 27, the inner wall of the first annular groove 27 is slidably inserted with a circular ring 29, the inner wall of the first annular groove 27 is matched with the outer surface of the circular ring 29 in size and shape, the outer surface of the circular ring 29 is fixedly connected with a second disc 28, the second disc 28 can be fixed on the outer surface of the main chain wheel 1 by inserting the circular ring 29 into the inner wall of the first annular groove 27, the outer surface of the main chain wheel 1 can be protected by the second disc 28, the phenomenon that the chain is subjected to external collision and abrasion is reduced, and the second disc 28 can be detached from the first annular groove 27 at any time through the circular ring 29.

Referring to fig. 1, 2 and 5, in this embodiment: the surface of second disc 28 is provided with protector 3, protector 3 includes U-shaped piece 34, second ring channel 31 has been seted up to the surface of second disc 28, make through second ring channel 31 lubrication engine oil can remain in the inside of second ring channel 31 when adding lubrication engine oil to main sprocket 1 and reduce the number of times that need add lubrication engine oil to main sprocket 1, the inner wall of second ring channel 31 is provided with rectangle notch 32, rectangle piece 33 has been inserted in the inner wall slip of rectangle notch 32, the surface of rectangle piece 33 and the surface fixed connection of U-shaped piece 34, can be fixed U-shaped piece 34 at the surface of second disc 28 through the inner wall of inserting rectangle piece 33 and protect the chain in the second disc 28 and prevent that the bicycle motion in-process chain from droing.

The working principle is as follows: when the main chain wheel 1 needs to be reinforced, the first disc 24 is placed on the outer surface of the main chain wheel 1, the bolt 22 is inserted into the inner rotary bolt 22 of the round hole 25 to enable the bolt 22 to be screwed into the threaded hole 21, then the threaded ring 23 is screwed into the outer surface of the bolt 22 to fix the first disc 24 on the outer surface of the main chain wheel 1, the rectangular rod 26 fixed on the outer surface of the fixing plate 5 and the first disc 24 are used for reinforcing and protecting the outer surface of the main chain wheel 1, when the bicycle needs to protect a chain in the driving process, the second disc 28 is inserted into the inner wall of the first annular groove 27 through the annular ring 29, the U-shaped piece 34 is inserted into the rectangular notch 32 through the rectangular block 33, the chain is protected through the second disc 28 and the U-shaped piece 34, the U-shaped piece 34 can prevent the chain from falling off in the driving process of the bicycle, and the second annular groove 31 can enable the retention time of the lubricating oil to be longer, and the number of times of adding the lubricating oil to the main chain wheel 1 is reduced.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

Claims

1. Sprocket group mechanism, including main sprocket (1), its characterized in that: the inner surface of main chain wheel (1) is provided with idler (4), the surface of main chain wheel (1) is provided with fixing device (2), fixing device (2) are including bolt (22), screw hole (21) are seted up to the surface of main chain wheel (1), the inner wall of screw hole (21) and the surface threaded connection of bolt (22), the surface of main chain wheel (1) is provided with first disc (24), round hole (25) have been seted up to the surface of first disc (24), the surface of bolt (22) and the inner wall sliding connection of round hole (25), the surface threaded connection of bolt (22) has screwed ring (23).

2. A sprocket assembly as set forth in claim 1 wherein: the inner wall fixedly connected with fixed plate (5) of main sprocket (1), the inner wall fixedly connected with rectangular rod (26) of main sprocket (1), the surface of rectangular rod (26) and the surface fixed connection of fixed plate (5).

3. A sprocket assembly as set forth in claim 1 wherein: the outer surface of the main chain (1) is provided with a first annular groove (27), and the inner wall of the first annular groove (27) is inserted with a circular ring (29) in a sliding manner.

4. A sprocket assembly according to claim 3, wherein: the inner wall of the first annular groove (27) is matched with the outer surface of the circular ring (29) in size and shape.

5. A sprocket assembly according to claim 3, wherein: the outer surface of the circular ring (29) is fixedly connected with a second disc (28).

6. A sprocket assembly set according to claim 5, wherein: the outer surface of the second disc (28) is provided with a protection device (3), the protection device (3) comprises a U-shaped sheet (34), and the outer surface of the second disc (28) is provided with a second annular groove (31).

7. A sprocket assembly set according to claim 6, wherein: the inner wall of the second annular groove (31) is provided with a rectangular notch (32), a rectangular block (33) is inserted into the inner wall of the rectangular notch (32) in a sliding mode, and the outer surface of the rectangular block (33) is fixedly connected with the outer surface of the U-shaped piece (34).