CN212042528U - Auxiliary tool for replacing chain - Google Patents

Abstract

The utility model discloses an appurtenance for chain is changed, change the handle with the second including first commentaries on classics, first commentaries on classics change with the second between the handle through rotatory round pin swing joint, first commentaries on classics handle, second change the tip of handle all be fixed with the extrusion head, be fixed with the buckle on the lateral wall of extrusion head, first commentaries on classics handle, second change on all be provided with the pinhole of rotatory round pin looks adaptation, the internally mounted of first commentaries on classics handle has the cardboard, the lateral wall of cardboard is provided with inside sunken catching groove, the lateral wall of cardboard is provided with and is located catching groove opposite face and outside bellied dop, can make first commentaries on classics handle and second change and rotate around rotatory round pin. The clamping plate can rotate around the fixing pin through the arrangement, so that the clamping plate can be stored in the clamping groove inside the first rotating handle, the fixing pin can penetrate through the arranged fixing hole conveniently, and the clamping plate can rotate around the fixing pin.

Description

Auxiliary tool for replacing chain

Technical Field

The utility model belongs to the technical field of change chain, concretely relates to appurtenance for chain is changed.

Background

The bicycle is common in life, the transmission of a chain cannot be separated when the bicycle runs, and the chain can be loosened, abraded and even broken when the chain is in transmission. The chain that the bicycle need be renewed need use the change tool, and the change tool is bulky, because the step of change is many, and the instrument quantity that uses is relatively more, carries inconveniently, dismantles and the installation just need carry two kinds of at least instruments, loses the change that any instrument can not accomplish the chain at the in-process of carrying.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an appurtenance for chain is changed can solve the bicycle and need use the change tool for the chain that needs the renewal, and the change tool is bulky, because the step of change is many, and the instrument quantity that uses is more relatively, and it is inconvenient to carry, dismantles and installs and just need carry two kinds of at least instruments, loses the problem that the change of any instrument all can not accomplish the chain at the in-process of carrying.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides an appurtenance for chain is changed, changes the handle including first commentaries on classics handle and second, first commentaries on classics handle and second change through rotatory round pin swing joint between the handle, first commentaries on classics handle, second change the tip of handle all be fixed with the extrusion head, be fixed with the buckle on the lateral wall of extrusion head, first commentaries on classics handle, second change on all be provided with the pinhole of rotatory round pin looks adaptation, the internally mounted of first commentaries on classics handle has the cardboard, the lateral wall of cardboard is provided with inside sunken catching groove, the lateral wall of cardboard is provided with and is located catching groove facade and outside bellied dop, just the dop sets up to two, the tip of cardboard is provided with first fixture block, the tip of cardboard is provided with the fixed orifices, the internally mounted of fixed orifices has the fixed pin. Can block inside the chain that needs were dismantled through the buckle that sets up, when opening first commentaries on classics with the second when changeing, the spring can bounce, play certain elasticity, when first commentaries on classics, the second changes the function that the spring can play the reseing when excessively opening, extrusion head through setting up can be with the quick transmission of power for the buckle, the buckle pushes away the chain, through rotatory round pin and the pinhole that sets up, can make first commentaries on classics and second change rotate around rotatory round pin. The clamping plate can rotate around the fixing pin through the arrangement, so that the clamping plate can be stored in the clamping groove inside the first rotating handle, the fixing pin can penetrate through the arranged fixing hole conveniently, and the clamping plate can rotate around the fixing pin.

Preferably, a clamping groove is formed in the first rotating handle, a second clamping block is arranged in the clamping groove, the clamping groove is matched with the clamping plate, and the first clamping block is matched with the second clamping block. Through the joint of the first fixture block that sets up and second fixture block, can lock the cardboard in the inside of draw-in groove, the catching groove at the cardboard lateral wall can stimulate behind first fixture block and second fixture block joint, thereby the pulling catching groove separates first fixture block and second fixture block, when needs are with cardboard and draw-in groove joint, bulldoze first fixture block, make first fixture block extrusion second fixture block, make first fixture block just slide the second fixture block, because first fixture block and second fixture block all adopt and have certain elastic material to make, relative micro deformation can take place for first fixture block and second fixture block in the time of the contact each other, thereby realize the joint of first fixture block and second fixture block or the separation of first fixture block and second fixture block.

Preferably, the fixing pin passes through a through hole of the first rotating handle side wall and is connected with a threaded hole formed in the first rotating handle side wall, and the threaded hole is a blind hole. Through the through-hole that sets up can make the fixed pin pass the through-hole and fix with the screw hole, and the surface of fixed pin is smooth, and the cardboard of being convenient for rotates around the fixed pin.

Preferably, the end of the fixing pin is provided with a threaded head, the surface of the threaded head is provided with threads, and the threaded head is matched with the threaded hole. Fix through the thread head and the screw hole that set up, after the thread head breaks away from the screw hole completely, can dismantle the fixed pin, after the fixed pin is dismantled, can take out the cardboard, make the thread head fix the inside at the screw hole when need not taking out the cardboard, the cardboard can rotate around the fixed pin.

Preferably, a spring is arranged between the first rotating handle and the second rotating handle. The function of increasing the elastic force is realized in the process of opening the first rotating handle and the second rotating handle through the arranged spring, and the auxiliary effect is achieved.

The utility model has the advantages that:

can block inside the chain that needs were dismantled through the buckle that sets up, when opening first commentaries on classics with the second when changeing, the spring can bounce, play certain elasticity, when first commentaries on classics, the second changes the function that the spring can play the reseing when excessively opening, extrusion head through setting up can be with the quick transmission of power for the buckle, the buckle pushes away the chain, through rotatory round pin and the pinhole that sets up, can make first commentaries on classics and second change rotate around rotatory round pin. The clamping plate can rotate around the fixing pin through the arrangement, so that the clamping plate can be stored in the clamping groove inside the first rotating handle, the fixing pin can penetrate through the arranged fixing hole conveniently, and the clamping plate can rotate around the fixing pin.

Through the joint of the first fixture block that sets up and second fixture block, can lock the cardboard in the inside of draw-in groove, the catching groove at the cardboard lateral wall can stimulate behind first fixture block and second fixture block joint, thereby the pulling catching groove separates first fixture block and second fixture block, when needs are with cardboard and draw-in groove joint, bulldoze first fixture block, make first fixture block extrusion second fixture block, make first fixture block just slide the second fixture block, because first fixture block and second fixture block all adopt and have certain elastic material to make, relative micro deformation can take place for first fixture block and second fixture block in the time of the contact each other, thereby realize the joint of first fixture block and second fixture block or the separation of first fixture block and second fixture block.

Through the through-hole that sets up can make the fixed pin pass the through-hole and fix with the screw hole, and the surface of fixed pin is smooth, and the cardboard of being convenient for rotates around the fixed pin. Fix through the thread head and the screw hole that set up, after the thread head breaks away from the screw hole completely, can dismantle the fixed pin, after the fixed pin is dismantled, can take out the cardboard, make the thread head fix the inside at the screw hole when need not taking out the cardboard, the cardboard can rotate around the fixed pin. The function of increasing the elastic force is realized in the process of opening the first rotating handle and the second rotating handle through the arranged spring, and the auxiliary effect is achieved.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the overall structure of the present invention;

fig. 3 is a schematic structural view of a second rotating handle of the present invention;

FIG. 4 is an enlarged view of the structure at A of FIG. 3;

in the figure: 1. buckling; 2. a first rotating handle; 3. a second rotating handle; 4. a rotation pin; 5. a fixing pin; 6. a clamping plate 6; 7. a card slot; 8. buckling grooves; 9. a spring; 10. an extrusion head; 11. a fixing hole; 12. clamping a head; 13. a first clamping block; 14. a second fixture block; 15. a threaded hole; 16. a screw head; 41. a pin hole.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 4, an auxiliary tool for chain replacement includes a first rotating handle 2 and a second rotating handle 3, the first rotating handle 2 and the second rotating handle 3 are movably connected through a rotating pin 4, the end parts of the first rotating handle 2 and the second rotating handle 3 are both fixed with an extrusion head 10, a buckle 1 is fixed on the side wall of the extrusion head 10, pin holes 41 matched with the rotating pins 4 are respectively arranged on the first rotating handle 2 and the second rotating handle 3, a clamping plate 6 is arranged in the first rotating handle 2, a fastening groove 8 which is concave inwards is arranged on the side wall of the clamping plate 6, the side wall of the clamping plate 6 is provided with a clamping head 12 which is positioned at the opposite surface of the buckling groove 8 and protrudes outwards, the number of the clamping heads 12 is two, the end part of the clamping plate 6 is provided with a first clamping block 13, the end of the clamping plate 6 is provided with a fixing hole 11, and a fixing pin 5 is installed inside the fixing hole 11. Can block inside the chain that needs were dismantled through buckle 1 that sets up, when opening first commentaries on classics 2 and second and change 3, spring 9 can bounce, play certain elasticity, when first commentaries on classics 2, spring 9 can play the function that resets when the second changes 3 excessively opens, extrusion head 10 through the setting can be with the quick transmission of power for buckle 1, buckle 1 pushes away the chain, rotatory round pin 4 and pinhole 41 through setting up, can make first commentaries on classics 2 and second change 3 and rotate around rotatory round pin 4. Cardboard 6 through setting up can rotate around fixed pin 5 to realize that cardboard 6 can collect first change 2 inside draw-in groove 7, can be convenient for run through of fixed pin 5 through the fixed orifices 11 that sets up, make cardboard 6 can rotate around fixed pin 5.

Specifically, a clamping groove 7 is formed in the first rotating handle 2, a second clamping block 14 is arranged in the clamping groove 7, the clamping groove 7 is matched with the clamping plate 6, and the first clamping block 13 is matched with the second clamping block 14. Through the joint of the first fixture block 13 that sets up and the 14 second fixture block, can lock 6 in the inside of draw-in groove 7 with cardboard, can stimulate behind first fixture block 13 and the 14 joint of second fixture block at the catching groove 8 of 6 lateral walls of cardboard, thereby stimulate catching groove 8 and separate first fixture block 13 and second fixture block 14, when needs are with cardboard 6 and the 7 joint of draw-in groove, bulldoze first fixture block 13, make first fixture block 13 extrusion second fixture block 14, make first fixture block 13 just slide second fixture block 14, because first fixture block 13 and second fixture block 14 all adopt and have certain elastic material to make, first fixture block 13 and second fixture block 14 can take place relative micro deformation in the time of mutual contact, thereby realize the joint of first fixture block 13 and second fixture block 14 or the separation of first fixture block 13 and second fixture block 14.

Specifically, the fixing pin 5 passes through the first through-hole that changes the 2 lateral walls with set up and be in the first screw hole 15 that changes the 2 lateral walls is connected, screw hole 15 is the blind hole. Through the through-hole that sets up can make fixed pin 5 pass the through-hole and fix with screw hole 15, and fixed pin 5's surface is smooth, and the cardboard 6 of being convenient for rotates around fixed pin 5.

Specifically, the end of the fixing pin 5 is provided with a threaded head 16, the surface of the threaded head 16 is provided with threads, and the threaded head 16 is matched with the threaded hole 15. Fix through the thread head 16 and the screw hole 15 that set up, after the thread head 16 breaks away from screw hole 15 completely, can dismantle the fixed pin 5, after the fixed pin 5 was dismantled, can take out cardboard 6, make the thread head 16 fix the inside at screw hole 15 when need not take out cardboard 6, cardboard 6 can rotate around fixed pin 5.

Specifically, a spring 9 is arranged between the first rotating handle 2 and the second rotating handle 3. The function of increasing the elastic force is realized in the process of opening the first rotating handle 2 and the second rotating handle 3 through the arranged spring 9, and the auxiliary effect is achieved.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (5)

1. The auxiliary tool for chain replacement is characterized by comprising a first rotating handle (2) and a second rotating handle (3), wherein the first rotating handle (2) and the second rotating handle (3) are movably connected through a rotating pin (4), the end parts of the first rotating handle (2) and the second rotating handle (3) are respectively fixed with an extrusion head (10), the side wall of the extrusion head (10) is fixedly provided with a buckle (1), the first rotating handle (2) and the second rotating handle (3) are respectively provided with a pin hole (41) matched with the rotating pin (4), a clamping plate (6) is arranged inside the first rotating handle (2), the side wall of the clamping plate (6) is provided with an inward sunken buckling groove (8), the side wall of the clamping plate (6) is provided with a clamping head (12) which is positioned opposite to the buckling groove (8) and protrudes outwards, and the two clamping heads (12) are arranged, the clamping plate is characterized in that a first clamping block (13) is arranged at the end of the clamping plate (6), a fixing hole (11) is formed in the end of the clamping plate (6), and a fixing pin (5) is arranged in the fixing hole (11).

2. The auxiliary tool for chain replacement according to claim 1, wherein a clamping groove (7) is formed in the first rotating handle (2), a second clamping block (14) is arranged in the clamping groove (7), the clamping groove (7) is matched with the clamping plate (6), and the first clamping block (13) is matched with the second clamping block (14).

3. An auxiliary tool for chain replacement according to claim 1, wherein the fixing pin (5) passes through a through hole in the side wall of the first rotating handle (2) and is connected with a threaded hole (15) arranged in the side wall of the first rotating handle (2), and the threaded hole (15) is a blind hole.

4. An aid tool for chain replacement according to claim 3, characterized in that the end of the fixing pin (5) is provided with a threaded head (16), the surface of the head (16) being provided with a thread, the head (16) and the threaded hole (15) being matched.

5. An auxiliary tool for chain changing according to claim 1, characterized in that a spring (9) is arranged between the first twist grip (2) and the second twist grip (3).

Images