CN215752854U

CN215752854U - Automatic anti-loosening device for bicycle flywheel

Info

Publication number: CN215752854U
Application number: CN202122134949.9U
Authority: CN
Inventors: 易必勇
Original assignee: Hubei Xinri Electric Vehicle Co ltd
Current assignee: Hubei Xinri Electric Vehicle Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-02-08
Anticipated expiration: 2031-09-06

Abstract

The utility model relates to the technical field of bicycle parts, in particular to an automatic anti-loosening device for a bicycle flywheel. Has the advantages that: during installation device, with the thread bush along the screw thread rotation, make it fix with the fixed column, pressing the dead lever, make its spring atress shrink, continue to rotate the thread bush again, the thread bush drives the dead lever and moves forward, the dead lever drives the runner and moves forward, until laminating mutually of runner and first recess, loosen the dead lever again, the spring is kick-backed, drive the inner wall of first recess of runner pressing close to, when the flywheel rotates this moment, the fixed rod on both sides forms a limit function to the flywheel, prevent that it from taking place not hard up when rotating, lead to the off tracking, improve the security of bicycle when driving, and the installation is simple, and convenient and fast, the practicality of improvement device.

Description

Automatic anti-loosening device for bicycle flywheel

Technical Field

The utility model relates to the technical field of bicycle parts, in particular to an automatic anti-loosening device for a bicycle flywheel.

Background

The bicycle is generally applied to the life of people as a transportation tool, is undoubtedly the best choice when the automobile is inconvenient to drive, and is pushed out green in other countries, so that more and more people use the bicycle as a transportation tool.

The external of the existing bicycle flywheel does not have a fixing device, and the flywheel is easy to loosen in the riding process, so that the deviation of the flywheel is caused, and the safety of the flywheel cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that the prior bicycle flywheel does not have a fixing device at the outer part, and the flywheel is easy to loose during the riding process, so that the flywheel deviates and the safety of the bicycle flywheel cannot be ensured in the prior art, and provides an automatic anti-loosening device for the bicycle flywheel.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the design is an automatic locking device that moves of bicycle flywheel, including the flywheel, the inner wall fixedly connected with pivot of flywheel, the inner wall fixedly connected with fixed column of pivot, the both ends outer wall of fixed column all sets up screw thread, threaded surface threaded connection has the thread bush, one side fixedly connected with erection column that the thread bush is close to the flywheel, first recess has all been seted up to the both sides outer wall of flywheel.

Preferably, the erection column is L shape, one side of erection column articulates there is the dead lever, the dead lever is close to one side fixedly connected with spring of erection column, the other end and the erection column fixed connection of spring.

Preferably, the number of the threaded sleeves is two, and the two threaded sleeves are symmetrically distributed on the outer wall of the fixing column.

Preferably, the number of the mounting columns is four, and the four mounting columns are symmetrically distributed on one side of the two groups of threaded sleeves respectively.

Preferably, one side fixedly connected with installation piece of dead lever, the joint groove has been seted up to the bottom of installation piece, the second recess has been seted up to one side inner wall in joint groove, the second logical groove has been seted up to the opposite side in joint groove.

Preferably, the inner wall in joint groove is provided with the joint piece, first logical groove has been seted up on the surface of joint piece, one side fixedly connected with fixed block of joint piece.

Preferably, the inner wall of the second through groove is in threaded connection with a rotary stud, the outer wall of the rotary stud is in threaded connection with the first through groove, and the bottom of the rotary stud is in threaded connection with the second groove.

Preferably, one side fixedly connected with connecting block that the fixed block is close to the dead lever, the one end of connecting block is provided with the runner, the protection groove has been seted up to the bottom of dead lever, runner and protection groove looks adaptation.

The utility model provides an automatic anti-loosening device for a bicycle flywheel, which has the beneficial effects that:

1. through the screw thread that sets up, the thread bush, the dead lever, a spring, erection column and runner, during installation device, rotate the thread bush along the screw thread, make it fix with the fixed column, press the dead lever, make its spring atress shrink, resume to rotate the thread bush again, the thread bush drives the dead lever and moves forward, the dead lever drives the runner and moves forward, until laminating mutually of runner and first recess, loosen the dead lever again, the spring rebounds, drive the inner wall of first recess, when the flywheel rotates this moment, the fixed rod on both sides forms a limit function to the flywheel, prevent that it from taking place to become flexible when rotating, lead to the off tracking, improve the security of bicycle when driving, and the installation is simple, high convenience and high speed, and the practicality of the device is improved.

2. Through the installation piece that sets up, the joint piece, the fixed block, the connecting block, runner and rotatory double-screw bolt, when needs are changed the runner, rotate rotatory double-screw bolt from the inner wall of second recess and come out, the first logical inslot internal rotation that offers from joint piece surface with rotatory double-screw bolt again comes out, break away from the logical inslot of second at last, with separation between joint piece and the joint groove, change the runner, because the runner is after long-time work, can take place wearing and tearing, lead to the frictional force increase between its and the first recess, make the rotation of flywheel unsmooth, the people can become hard when riding, it is more convenient to make it change through rotatory double-screw bolt, improve the efficiency of installation and change.

Drawings

FIG. 1 is a front view of an automatic anti-loosening device for a bicycle freewheel, according to the present invention;

FIG. 2 is a side view of an automatic anti-loosening device for a bicycle freewheel, according to the present invention;

FIG. 3 is a partial structural view of an automatic anti-loosening device for a bicycle freewheel according to the present invention.

In the figure: 1. a flywheel; 2. a threaded sleeve; 3. a thread; 4. fixing a column; 5. mounting a column; 6. fixing the rod; 7. a spring; 8. a rotating wheel; 9. a first groove; 10. a rotating shaft; 11. a protective groove; 12. a second groove; 13. mounting blocks; 14. a clamping groove; 15. a first through groove; 16. rotating the stud; 17. a second through groove; 18. a clamping block; 19. a fixed block; 20. a connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, an automatic anti-loosening device for a bicycle flywheel comprises a flywheel 1, a rotating shaft 10 is fixedly connected to the inner wall of the flywheel 1, a fixed column 4 is fixedly connected to the inner wall of the rotating shaft 10, threads 3 are respectively formed on the outer walls of the two ends of the fixed column 4, a threaded sleeve 2 is connected to the surface of each thread 3 in a threaded manner, an installation column 5 is fixedly connected to one side, close to the flywheel 1, of each threaded sleeve 2, first grooves 9 are respectively formed in the outer walls of the two sides of the flywheel 1, a fixed rod 6 is hinged to one side of each installation column 5, a spring 7 is fixedly connected to one side, close to each installation column 5, of each fixed rod 6, the other end of each spring 7 is fixedly connected to the installation column 5, the threaded sleeves 2 are two in number, the two sets of threaded sleeves 2 are symmetrically distributed on the outer wall of the fixed column 4, the installation columns 5 are four sets, and the installation columns 5 are symmetrically distributed on one sides of the two sets of the threaded sleeves 2 respectively, during installation device, with thread bush 2 along screw thread 3 rotation, make it fix with fixed column 4, press down dead lever 6, make its spring 7 atress shrink, continue to rotate thread bush 2 again, thread bush 2 drives dead lever 6 and moves forward, dead lever 6 drives runner 8 and moves forward, until laminating mutually of runner 8 and first recess 9, loosen dead lever 6 again, spring 7 kick-backs, drive the inner wall of first recess 9 is pressed close to runner 8, when flywheel 1 rotates this moment, dead lever 6 on both sides forms a limit function to flywheel 1, prevent that it from taking place not hard up when rotating, lead to the off tracking, improve the security of bicycle when driving, and the installation is simple, and convenient and fast, improve the practicality of device.

Wherein, one side of the fixed rod 6 is fixedly connected with an installation block 13, the bottom of the installation block 13 is provided with a clamping groove 14, the inner wall of one side of the clamping groove 14 is provided with a second groove 12, the other side of the clamping groove 14 is provided with a second through groove 17, the inner wall of the clamping groove 14 is provided with a clamping block 18, the surface of the clamping block 18 is provided with a first through groove 15, one side of the clamping block 18 is fixedly connected with a fixed block 19, the inner wall of the second through groove 17 is in threaded connection with a rotary stud 16, the outer wall of the rotary stud 16 is in threaded connection with the first through groove 15, the bottom of the rotary stud 16 is in threaded connection with the second groove 12, one side of the fixed block 19, which is close to the fixed rod 6, is fixedly connected with a connecting block 20, one end of the connecting block 20 is provided with a rotating wheel 8, the bottom of the fixed rod 6 is provided with a protection groove 11, and the rotating wheel 8 is matched with the protection groove 11, when needs are changed runner 8, rotate rotatory double-screw bolt 16 from the inner wall of second recess 12 and come out, again with rotatory double-screw bolt 16 from the first logical inslot 15 internal rotation that joint piece 18 surface was seted up and come out, break away from in second logical inslot 17 at last, with separating between joint piece 18 and joint groove 14, change runner 8, because runner 8 is after long-time work, can take place wearing and tearing, lead to the frictional force increase between its and first recess 9, make the rotation of flywheel 1 not smooth and easy, the people can become hard when riding, it is more convenient to make its change through rotatory double-screw bolt 16, improve the efficiency of installation and change.

The working principle is as follows: in conclusion, when the device is used, the threaded sleeve 2 is rotated along the thread 3 to be fixed with the fixed column 4, the fixed rod 6 is pressed to enable the spring 7 to contract under stress, the threaded sleeve 2 is further rotated, the threaded sleeve 2 drives the fixed rod 6 to move forwards, the fixed rod 6 drives the rotating wheel 8 to move forwards until the rotating wheel 8 is attached to the first groove 9, then the fixed rod 6 is loosened, the spring 7 rebounds to drive the rotating wheel 8 to be close to the inner wall of the first groove 9, at the moment, when the flywheel 1 rotates, the fixed rods 6 on two sides form a limiting function on the flywheel 1 to prevent the flywheel 1 from being loosened and deviating during rotation, safety of a bicycle during running is improved, installation is simple, convenient and rapid, and practicability of the device is improved, when the rotating wheel 8 needs to be replaced, the rotating stud 16 is rotated to rotate the rotating stud 16 out of the inner wall of the second groove 12, rotate the double-screw bolt 16 again and come out from the first logical groove 15 internal rotation that joint piece 18 surface was seted up, break away from in the second through groove 17 at last, with separating between joint piece 18 and the joint groove 14, change runner 8, because runner 8 after long-time work, can take place wearing and tearing, lead to the frictional force increase between its and the first recess 9, make flywheel 1's rotation unsmooth, the people can become hard when riding, it is more convenient to make it change through rotatory double-screw bolt 16, improve the efficiency of installation and change.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides an automatic locking device that moves of bicycle flywheel, includes flywheel (1), its characterized in that: the inner wall fixedly connected with pivot (10) of flywheel (1), the inner wall fixedly connected with fixed column (4) of pivot (10), screw thread (3) have all been seted up to the both ends outer wall of fixed column (4), the surperficial threaded connection of screw thread (3) has thread bush (2), one side fixedly connected with erection column (5) that thread bush (2) are close to flywheel (1), first recess (9) have all been seted up to the both sides outer wall of flywheel (1).

2. The automatic loosening prevention device for the bicycle flywheel of claim 1, wherein the mounting post (5) is L-shaped, one side of the mounting post (5) is hinged with a fixing rod (6), one side of the fixing rod (6) close to the mounting post (5) is fixedly connected with a spring (7), and the other end of the spring (7) is fixedly connected with the mounting post (5).

3. The automatic loosening prevention device for the bicycle flywheel of claim 1, wherein the number of the threaded sleeves (2) is two, and the two threaded sleeves (2) are symmetrically distributed on the outer wall of the fixed column (4).

4. The automatic loosening prevention device for the bicycle flywheel of claim 1, wherein the number of the mounting posts (5) is four, and the four mounting posts (5) are symmetrically distributed on one side of the two sets of the threaded sleeves (2).

5. The automatic anti-loosening device for the bicycle flywheel as claimed in claim 2, wherein a mounting block (13) is fixedly connected to one side of the fixing rod (6), a clamping groove (14) is formed in the bottom of the mounting block (13), a second groove (12) is formed in the inner wall of one side of the clamping groove (14), and a second through groove (17) is formed in the other side of the clamping groove (14).

6. The automatic anti-loosening device for the bicycle flywheel as claimed in claim 5, wherein a clamping block (18) is arranged on the inner wall of the clamping groove (14), a first through groove (15) is formed in the surface of the clamping block (18), and a fixed block (19) is fixedly connected to one side of the clamping block (18).

7. The automatic loosening prevention device for the bicycle flywheel of claim 5, wherein a rotary stud (16) is connected to the inner wall of the second through groove (17) in a threaded manner, the outer wall of the rotary stud (16) is connected to the first through groove (15) in a threaded manner, and the bottom of the rotary stud (16) is connected to the second groove (12) in a threaded manner.

8. The automatic anti-loosening device for the bicycle flywheel as claimed in claim 6, wherein a connecting block (20) is fixedly connected to one side of the fixing block (19) close to the fixing rod (6), a rotating wheel (8) is arranged at one end of the connecting block (20), a protecting groove (11) is formed in the bottom of the fixing rod (6), and the rotating wheel (8) is matched with the protecting groove (11).