CN211398426U

CN211398426U - Bicycle flywheel anti-loosening device

Info

Publication number: CN211398426U
Application number: CN202020056248.0U
Authority: CN
Inventors: 何国爱
Original assignee: Suzhou Aimeng Machinery Co ltd
Current assignee: Suzhou Aimeng Machinery Co ltd
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2020-09-01
Anticipated expiration: 2030-01-13

Abstract

The utility model discloses a bicycle flywheel locking device relates to machine part technical field, which comprises a rotating shaft, the outside of pivot is provided with the flywheel, the outside of pivot is provided with protruding piece, the flywheel inboard be provided with protruding piece matched with recess, one side that the pivot outside is located the flywheel is provided with the back lid, the back lid extends to flywheel one side and is provided with the screw thread. The utility model discloses a be provided with protecgulum and the hou gai of connecting through screw-thread fit respectively in the both sides of flywheel, back lid and flywheel are fixed in the pivot simultaneously, and one side of back lid extends to the opposite side of flywheel rather than matched with mating holes above through the flywheel, and connect through the bearing between protecgulum and the pivot, the protecgulum can be twisted, screw up through the screw thread with the back lid, can make the flywheel can not take place the incline, and the pivot outside is provided with three groups and extends to the inboard protruding piece of flywheel, make flywheel and pivot can not take place to slide, fix fastening more, can not bring danger for riding.

Description

Bicycle flywheel anti-loosening device

Technical Field

The utility model relates to a machine part technical field specifically is a bicycle flywheel locking device.

Background

In recent years, traffic jam is increasingly serious, the purchasing power level of common residents is limited, and fuel oil, environment, places and other factors restrict automobiles to be a popular transportation tool in a short time, and many cities take restriction measures on motor vehicles.

The existing bicycle flywheel is used as a main transmission part of a bicycle and needs to be more stable to be better used, the existing bicycle flywheel is easy to slip after being used for a long time, and the flywheel is easy to incline through the transmission of a chain, so that the danger is brought to riding.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems that the existing bicycle flywheel is used as a main transmission part of a bicycle and can be better used only by being more stable, the existing bicycle flywheel is easy to slip after being used for a long time, and the flywheel is easy to incline through the transmission of a chain, so that the danger is brought to riding.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a bicycle flywheel locking device, includes the pivot, the outside of pivot is provided with the flywheel, the outside of pivot is provided with protruding piece, the flywheel inboard is provided with the recess with protruding piece matched with, one side that the pivot outside is located the flywheel is provided with the back lid, the back lid extends to flywheel one side and is provided with the screw thread, the opposite side that the pivot outside is located the flywheel is provided with the protecgulum that passes through threaded connection with the back lid.

Preferably, the number of the convex blocks is three, and the convex blocks are fixedly connected with the rotating shaft.

Preferably, the inner side of the front cover is provided with threaded holes matched with the threads, the inside of the flywheel is provided with matching holes matched with the threads, and the number of the matching holes is three.

Preferably, the rotating shaft and the front cover are rotatably connected through a bearing, and a fixing groove matched with the protruding block on the surface of the rotating shaft is formed in the inner side of the bearing.

Preferably, one side that the pivot outside is close to the bearing is provided with the latch segment, the latch segment inboard is provided with the pin pole, the pivot inboard is provided with the pinhole with pin pole matched with.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a be provided with protecgulum and the hou gai of connecting through screw-thread fit respectively in the both sides of flywheel, back lid and flywheel are fixed in the pivot simultaneously, and one side of back lid extends to the opposite side of flywheel rather than matched with mating holes above through the flywheel, and connect through the bearing between protecgulum and the pivot, cooperation through the screw thread, the protecgulum can be twisted, screw up through the screw thread with the back lid, can make the flywheel can not take place the incline, and the pivot outside is provided with three groups and extends to the inboard protruding piece of flywheel, make flywheel and pivot can not take place to slide, it is fixed more to fasten, can not ride and bring danger.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic view of a partial structure of the present invention;

fig. 4 is a schematic view of the interior of the front end of the present invention.

In the figure: 1. a rotating shaft; 2. a flywheel; 3. a rear cover; 4. a front cover; 5. a thread; 6. a mating hole; 7. a bearing; 8. a locking block; 9. a pin rod; 10. a raised block; 11. a pin hole; 12. a threaded bore.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a bicycle flywheel anti-loosening device comprises a rotating shaft 1, a flywheel 2 is arranged on the outer side of the rotating shaft 1, a protruding block 10 is arranged on the outer side of the rotating shaft 1, a groove matched with the protruding block 10 is arranged on the inner side of the flywheel 2, a rear cover 3 is arranged on one side, located on the flywheel 2, of the outer side of the rotating shaft 1, the rear cover 3 extends to one side of the flywheel 2 and is provided with a thread 5, and a front cover 4 in threaded connection with the rear cover 3 through the thread 5 is arranged on the other side, located on the flywheel 2, of.

The utility model discloses a be provided with protecgulum 4 and back lid 3 through screw thread 5 cooperation connection respectively in the both sides of flywheel 2, back lid 3 and flywheel 2 are fixed simultaneously in pivot 1, and one side of back lid 3 is passed through above the flywheel 2 rather than the opposite side of matched with mating holes 6 extending to flywheel 2, and connect through bearing 7 between protecgulum 4 and the pivot 1, cooperation through screw thread 5, protecgulum 4 can be twisted, screw up through screw thread 5 with back lid 3, can make flywheel 2 can not take place the incline, and the pivot 1 outside is provided with three groups and extends to the inboard protruding piece 10 of flywheel, make flywheel 2 and pivot 1 can not take place to slide, it is fixed more to fasten, can not give and bring danger.

Please refer to fig. 3, the number of the protruding blocks 10 is three, and the protruding blocks 10 are fixedly connected to the rotating shaft 1, the present invention provides three groups of protruding blocks 10 to make the matching more stable.

Please refer to fig. 1 and fig. 3, the inner side of the front cover 4 is provided with a threaded hole 12 matching with the thread 5, the inside of the flywheel 2 is provided with a matching hole 6 matching with the thread 5, the number of the matching holes 6 is three groups, the utility model discloses a set up the threaded hole 12, better connect the rear cover 3 and the front cover 4 together.

Please refer to fig. 1 and fig. 2, the rotating shaft 1 is rotatably connected to the front cover 4 through the bearing 7, the inner side of the bearing 7 is provided with a fixing groove matched with the protruding block 10 on the surface of the rotating shaft 1, the utility model discloses a set up the bearing 7, the front cover 4 can be matched with the back cover 3, and meanwhile, can not slide relatively with the rotating shaft 1, and is more stable.

Please refer to fig. 2 and fig. 4, one side of the outer side of the rotating shaft 1 near the bearing 7 is provided with a locking block 8, the inner side of the locking block 8 is provided with a pin 9, the inner side of the rotating shaft 1 is provided with a pin hole 11 matched with the pin 9, the utility model discloses a setting the locking block 8 and the pin 9 prevents the bearing 7 from sliding off.

The working principle is as follows: when in use, the rear cover 3 is arranged at one side of the rotating shaft 1, the inside of the flywheel 2 is provided with a matching hole 6 matched with the rear cover 3, a thread 5 arranged at one side of the rear cover 3 extends to the other side of the flywheel 2 through the matching hole 6, and then the front cover 4 is installed, a threaded hole 12 matched with the thread 5 is arranged inside the front cover 4, the front cover 4 is connected with the rotating shaft 1 through a bearing 7 through thread connection, the front cover 4 can be screwed down, so that the front cover 4 and the rear cover 3 clamp and fasten the flywheel 2 through the action of the thread, the flywheel is prevented from deflecting in the operation process, the danger is brought to a rider, three groups of convex blocks 10 are uniformly arranged on the surface of the rotating shaft 1, the convex blocks 10 extend to the inner side of the flywheel 2, the flywheel 2 is prevented from sliding with the rotating shaft 1, the tail end of the rotating shaft 1 is provided with two groups of locking blocks 8, and the inner side of the locking blocks, under the round pin accuse cooperation through pin pole 9 and the inside setting of pivot 1, latch segment 8 can carry out spacing fixed to bearing 7, prevents that bearing 7 from taking place to drop at the in-process of operation to influence the connection of protecgulum 4 and hou gai 3.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a bicycle flywheel locking device, includes pivot (1), its characterized in that: the outside of pivot (1) is provided with flywheel (2), the outside of pivot (1) is provided with protruding piece (10), flywheel (2) inboard is provided with the recess with protruding piece (10) matched with, one side that pivot (1) outside is located flywheel (2) is provided with back lid (3), back lid (3) extend to flywheel (2) one side and are provided with screw thread (5), the opposite side that pivot (1) outside is located flywheel (2) is provided with and passes through preceding lid (4) of screw thread (5) threaded connection with back lid (3).

2. The bicycle freewheel lock device according to claim 1 characterized in that: the number of the convex blocks (10) is three, and the convex blocks (10) are fixedly connected with the rotating shaft (1).

3. The bicycle freewheel lock device according to claim 1 characterized in that: the inner side of the front cover (4) is provided with threaded holes (12) matched with the threads (5), the flywheel (2) is internally provided with matching holes (6) matched with the threads (5), and the number of the matching holes (6) is three.

4. The bicycle freewheel lock device according to claim 1 characterized in that: the rotating shaft (1) is rotatably connected with the front cover (4) through a bearing (7), and a fixing groove matched with the protruding block (10) on the surface of the rotating shaft (1) is formed in the inner side of the bearing (7).

5. The bicycle freewheel lock device according to claim 1 characterized in that: one side that pivot (1) outside is close to bearing (7) is provided with latch segment (8), latch segment (8) inboard is provided with round pin pole (9), pivot (1) inboard is provided with pinhole (11) with round pin pole (9) matched with.