CN219295618U

CN219295618U - Assembled sprocket crank

Info

Publication number: CN219295618U
Application number: CN202223504696.0U
Authority: CN
Inventors: 靳华彪
Original assignee: Superlink Tianjin Technology Co ltd
Current assignee: Superlink Tianjin Technology Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-07-04
Anticipated expiration: 2032-12-27

Abstract

The utility model discloses an assembled chain wheel crank, which has the technical scheme that: the chain wheel comprises a chain wheel body, wherein a crank body is arranged on one side of the chain wheel body, and a connecting column is arranged on one side of the crank body; the assembly component is arranged on the inner circular wall surface of the chain wheel body and is used for assembling the chain wheel body and the crank body, the assembly component comprises a plurality of clamping columns, the clamping columns are fixedly installed on the inner circular wall surface of the chain wheel body, a plurality of clamping grooves are formed in the outer circular wall surface of the connecting column, the connecting column is movably sleeved with the chain wheel body, the clamping columns are movably sleeved with the clamping grooves, and the chain wheel body, the crank body, the connecting column, the clamping columns, the clamping grooves, the fixing columns, the fixing holes, the movable grooves, the baffle plates, the first springs and the limiting holes are matched with one another to be used, so that the chain wheel body, the crank body and the connecting column are assembled conveniently.

Description

Assembled sprocket crank

Technical Field

The utility model relates to the technical field of sprocket cranks, in particular to an assembled sprocket crank.

Background

The crank is a bicycle component, in the side link, the component capable of rotating 360 deg. around its axis is called crank, the bicycle centre shaft crank device is equipped with a movable crank between the fixed crank and pedal shaft of traditional bicycle, between the movable crank and fixed crank sleeve hole a regulating fastener is connected and fixed, the fixed crank is connected with centre shaft with journal action surface, and the chain is also called chain, roller chain and mounted on the chain wheel and flywheel. The pedal force is transmitted to the flywheel and the rear wheel by the crank and the chain wheel to drive the bicycle to advance.

For example, chinese patent publication No. CN217146280U, in which an assembled sprocket crank is proposed, this patent is provided with a threaded sleeve, an insert, a slot, a first spring, a movable slot and a threaded rod, when assembling, the insert is pushed to make it enter the inside of the movable slot, then the threaded sleeve is sleeved on the outside of the threaded rod and continuously rotates, after the threaded rod completely enters the inside of the threaded sleeve, the insert is released to pop up under the pushing of the first spring, and the insert is inserted into the inside of the slot to limit the threaded sleeve, so as to improve the stability after installation, thereby completing the installation of the connecting rod, and realizing the convenient installation of the threaded sleeve and the connecting rod.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides an assembled chain wheel crank, which solves the problems that the assembly effect of the chain wheel crank is poor because the chain wheel body and pedals are assembled through a threaded rod and the chain wheel body needs to rotate in use, so that the condition that a threaded rod rotates loose can occur.

The technical aim of the utility model is realized by the following technical scheme:

an assembled chain wheel crank comprises a chain wheel body, wherein a crank body is arranged on one side of the chain wheel body, and a connecting column is arranged on one side of the crank body; the equipment subassembly sets up the interior circular wall of sprocket body is in, be used for right the sprocket body with the crank body is assembled, the equipment subassembly includes: the chain wheel comprises a chain wheel body, a plurality of clamping columns, a plurality of clamping grooves, a plurality of baffle plates, a plurality of fixing holes, two first springs, a plurality of fixing columns and a plurality of fixing holes, wherein the clamping columns are fixedly installed on the inner circular wall surface of the chain wheel body, the clamping grooves are formed in the outer circular wall surface of the connecting column, the connecting column is movably sleeved with the chain wheel body, the clamping columns are movably sleeved with the clamping grooves, the fixing holes are formed in one side of the crank body, the fixing columns are movably sleeved with the fixing holes, movable grooves are formed in the inner bottom surface of the clamping grooves, two first springs are fixedly installed on the inner bottom surface of the movable grooves, and the baffle plates are movably sleeved with the first springs.

In order to facilitate limiting the baffle, as the assembled sprocket crank, preferably, one side of the baffle is provided with the mounting groove, one side of the inside of the mounting groove is fixedly provided with the second spring, the inner circular wall surface of the mounting groove is movably sleeved with the limiting column, the limiting column is fixedly installed with the second spring, one side of the inside of the movable groove is provided with the two limiting holes, and the limiting column is movably sleeved with the limiting holes.

In order to facilitate the clamping column to be adsorbed in the clamping groove for stabilization, the assembled sprocket crank is preferably provided with the first magnet fixedly arranged on one side of the inner part of the clamping groove, and the second magnet fixedly arranged on one side of the clamping column.

In order to facilitate fastening the crank body at one end of the connecting column, as the assembled sprocket crank, preferably, the outer circular wall surface of the fixing column is provided with threads, one side of the crank body is provided with a plurality of first nuts, and the first nuts are in threaded connection with the fixing column.

In order to facilitate the disassembly of the pedals, as the assembled sprocket crank, preferably, one side of the crank body is provided with the pedals, one side of the crank body is provided with the connecting hole, one side of the pedals is fixedly provided with the mounting column, the inner circular wall surface of the connecting hole is provided with the rotating groove, the inner circular wall surface of the rotating groove is movably sleeved with the rotating ring, and the mounting column is movably sleeved with the rotating ring.

In order to facilitate the fixing of the pedal on one side of the crank body, as the assembled sprocket crank of the utility model, preferably, the outer circular wall surface of the mounting column is provided with threads, one side of the crank body is provided with a second nut, and the second nut is in threaded connection with the mounting column.

In order to facilitate the increase of rust resistance of the sprocket body and the crank body, as an assembled sprocket crank of the present utility model, it is preferable that the surfaces of the sprocket body and the crank body are respectively coated with a rust-proof paint.

In summary, the utility model has the following advantages:

through sprocket body, crank body, spliced pole, joint post, joint groove, fixed column, fixed orifices, movable groove, baffle, first spring and the use of limiting hole mutually support that sets up to be convenient for assemble sprocket body, crank body and spliced pole.

Through the spacing post that sets up, when the baffle shifted out the inside of movable groove, spacing post can coincide with the restriction hole, through the promotion of second spring this moment, and then can impel the inside in restriction hole with spacing post to be convenient for restrict the baffle.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of a rotating ring structure of the present utility model;

FIG. 3 is a schematic view of the structure of the connecting hole of the present utility model;

FIG. 4 is a schematic view of a connecting column structure of the present utility model;

FIG. 5 is a schematic view of a structure of a clamping groove according to the present utility model;

fig. 6 is a schematic left-hand view of the baffle structure of the present utility model.

Reference numerals: 1. a sprocket body; 2. a crank body; 3. a connecting column; 4. a clamping column; 5. a clamping groove; 6. fixing the column; 7. a fixing hole; 8. a movable groove; 9. a baffle; 10. a first spring; 11. limiting the aperture; 12. a mounting groove; 13. a second spring; 14. a limit column; 15. a first magnet; 16. a mounting column; 17. a first nut; 18. a second magnet; 19. foot pedal; 20. a connection hole; 21. a rotating groove; 22. a rotating ring; 23. and a second nut.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, an assembled sprocket crank comprises a sprocket body 1, a crank body 2 is arranged on one side of the sprocket body 1, a connecting column 3 is arranged on one side of the crank body 2, an assembly component is arranged on the inner circular wall surface of the sprocket body 1 and the crank body 2 and used for assembling the sprocket body 1 and the crank body 2, the assembly component comprises a plurality of clamping columns 4, the plurality of clamping columns 4 are fixedly arranged on the inner circular wall surface of the sprocket body 1, a plurality of clamping grooves 5 are formed on the outer circular wall surface of the connecting column 3, the connecting column 3 is movably sleeved with the sprocket body 1, the clamping columns 4 are movably sleeved with the clamping grooves 5, a plurality of fixing columns 6 are fixedly arranged at one end of the connecting column 3, a plurality of fixing holes 7 are formed on one side of the crank body 2, the fixing columns 6 are movably sleeved with the fixing holes 7, movable grooves 8 are formed on the inner bottom surface of the clamping grooves 5, two first springs 10 are fixedly arranged on the inner bottom surface of the movable groove 8, a baffle plate 9 is movably sleeved in the movable groove 8, the baffle plate 9 is fixedly arranged with the first springs 10, through the set sprocket body 1, when a worker assembles the sprocket body 1, the worker drives the fixed column 6 to move by moving the connecting column 3, and then the connecting column 3 is placed in the sprocket body 1, at the moment, the clamping groove 5 is clamped with the clamping column 4, when the clamping column 4 completely enters the inside of the clamping groove 5, the baffle plate 9 moves along the surface of the clamping column 4, and then the baffle plate 9 is extruded into the inside of the movable groove 8, after the clamping column 4 enters the inside of the clamping groove 5, the clamping column 4 is separated from the baffle plate 9 to contact the extrusion of the baffle plate 9, then the first springs 10 can drive the baffle plate 9 to rebound, so that the baffle plate 9 can be pushed out of the inside of the movable groove 8, let baffle 9 get into the inside of joint groove 5, and then through the blocking of baffle 9, thereby can prevent that joint post 4 from shifting out the inside of joint groove 5, then move the inside that crank body 2 let fixed column 6 get into fixed orifices 7, can restrict crank body 2, thereby be convenient for assemble sprocket body 1, crank body 2 and spliced pole 3, sprocket body 1 through setting up, crank body 2, spliced pole 3, joint post 4, joint groove 5, fixed column 6, fixed orifices 7, movable tank 8, baffle 9, first spring 10 and restriction hole 11 mutually support and use, thereby be convenient for assemble sprocket body 1, crank body 2 and spliced pole 3, mounting groove 12 has been seted up to one side of baffle 9, inside one side fixed mounting of mounting groove 12 has second spring 13, the interior wall movable sleeve of mounting groove 12 has spacing post 14, spacing post 14 and second spring 13 fixed mounting, two restriction holes 11 have been seted up to one side of inside of movable groove 8, spacing post 14 and restriction hole 11 movable sleeve joint, through the spacing post 14 that sets up, when baffle 9 moves out inside of movable groove 8, can be convenient for push away from spacing post 14 and restriction hole 11 when the inside of movable groove 8, thereby can be convenient for push away from the restriction post 11 to coincidence to limit post 11.

Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, the inside one side of joint groove 5 is fixedly installed with first magnet 15, one side of joint post 4 is fixedly installed with second magnet 18, the outer circumference wall of fixed post 6 is seted up the screw thread, one side of crank body 2 is provided with a plurality of first nuts 17, first nut 17 and fixed post 6 threaded connection, one side of crank body 2 is provided with pedal 19, connecting hole 20 has been seted up to one side of crank body 2, one side fixed mounting of pedal 19 has erection column 16, the interior circumference wall of connecting hole 20 has seted up rotary groove 21, rotary ring 22 has been cup jointed in the interior circumference wall activity of rotary groove 21, erection column 16 and rotary ring 22 are movably cup jointed, through pedal 19 that sets up, the staff drives erection column 16 through removing pedal 19, thereby can shift out the inside of connecting hole 20 and rotary ring 22 with erection column 16, thereby be convenient for dismantle pedal 19, the outer circumference wall of erection column 16 is provided with the screw thread, one side of crank body 2 is provided with second nut 23, second nut 23 and installation column 16 and sprocket wheel 2 are connected with 1 respectively, rust-proof paint is scribbled on the surface of the sprocket 2.

Working principle: referring to fig. 1-6, when a worker assembles the sprocket body 1 by moving the connecting column 3, the worker drives the fixing column 6 to move, and then places the connecting column 3 into the sprocket body 1, at this time, the clamping groove 5 is clamped with the clamping column 4, when the clamping column 4 completely enters the inside of the clamping groove 5, the baffle 9 moves against the surface of the clamping column 4, and then the baffle 9 is extruded into the movable groove 8, after the clamping column 4 enters the inside of the clamping groove 5, the clamping column 4 and the baffle 9 are separated to contact the extrusion of the baffle 9, and then the first spring 10 drives the baffle 9 to rebound, so that the baffle 9 is pushed out of the inside of the movable groove 8, the baffle 9 enters the inside of the clamping groove 5, and then the baffle 9 is blocked, so that the clamping column 4 is prevented from moving out of the inside of the clamping groove 5, and then the crank body 2 is moved to make the fixing column 6 enter the inside of the fixing hole 7, so that the crank body 2 can be limited, and the sprocket body 1, the crank body 2 and the connecting column 3 are assembled conveniently.

Through the spacing post 14 that sets up, when baffle 9 shifts out the inside of movable tank 8, spacing post 14 can overlap with restriction hole 11, through the promotion of second spring 13 this moment, and then can push the inside of restriction hole 11 with spacing post 14 to be convenient for restrict baffle 9, through the pedal 19 of setting, the staff drives the erection column 16 through removing pedal 19 and removes, and then can shift out the erection column 16 connecting hole 20 and the inside of swivel ring 22, thereby is convenient for dismantle pedal 19.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An assembled sprocket crank, comprising:

the chain wheel comprises a chain wheel body (1), wherein a crank body (2) is arranged on one side of the chain wheel body (1), and a connecting column (3) is arranged on one side of the crank body (2);

the equipment subassembly sets up the interior circular wall of sprocket body (1), be used for to sprocket body (1) with crank body (2) are assembled, the equipment subassembly includes: the novel chain wheel comprises a plurality of clamping columns (4), wherein the clamping columns (4) are fixedly installed on the inner circular wall surface of a chain wheel body (1), a plurality of clamping grooves (5) are formed in the outer circular wall surface of a connecting column (3), the connecting column (3) is movably sleeved with the chain wheel body (1), the clamping columns (4) are movably sleeved with the clamping grooves (5), a plurality of fixing columns (6) are fixedly installed at one end of the connecting column (3), a plurality of fixing holes (7) are formed in one side of a crank body (2), the fixing columns (6) are movably sleeved with the fixing holes (7), movable grooves (8) are formed in the inner bottom surfaces of the clamping grooves (5), two first springs (10) are fixedly installed on the inner bottom surfaces of the movable grooves (8), a baffle (9) is movably sleeved with the inner surfaces of the movable grooves (8), and the baffle (9) is fixedly installed with the first springs (10).

2. An assembled sprocket crank as set forth in claim 1, wherein: mounting groove (12) have been seted up to one side of baffle (9), inside one side fixed mounting of mounting groove (12) has second spring (13), interior circular wall activity of mounting groove (12) has cup jointed spacing post (14), spacing post (14) with second spring (13) fixed mounting, two restriction holes (11) have been seted up to inside one side of movable groove (8), spacing post (14) with restriction hole (11) activity cup joints.

3. An assembled sprocket crank as set forth in claim 1, wherein: a first magnet (15) is fixedly arranged on one side of the inside of the clamping groove (5), and a second magnet (18) is fixedly arranged on one side of the clamping column (4).

4. An assembled sprocket crank as set forth in claim 1, wherein: the outer circular wall surface of the fixed column (6) is provided with threads, one side of the crank body (2) is provided with a plurality of first nuts (17), and the first nuts (17) are in threaded connection with the fixed column (6).

5. An assembled sprocket crank as set forth in claim 1, wherein: one side of crank body (2) is provided with pedal (19), connecting hole (20) have been seted up to one side of crank body (2), one side fixed mounting of pedal (19) has erection column (16), rotation groove (21) have been seted up to the interior circular wall of connecting hole (20), rotation ring (22) have been cup jointed in the interior circular wall activity of rotation groove (21), erection column (16) with rotation ring (22) activity cup joints.

6. An assembled sprocket crank as set forth in claim 5, wherein: the outer circular wall surface of the mounting column (16) is provided with threads, one side of the crank body (2) is provided with a second nut (23), and the second nut (23) is in threaded connection with the mounting column (16).

7. An assembled sprocket crank as set forth in claim 1, wherein: the surfaces of the chain wheel body (1) and the crank body (2) are respectively coated with antirust paint.