CN216374877U

CN216374877U - Adjustable and replaceable rear hook claw group of belt pulley bicycle

Info

Publication number: CN216374877U
Application number: CN202122829187.4U
Authority: CN
Inventors: 韦韬
Original assignee: Shenzhen Xinfengda Hardware Products Co ltd
Current assignee: Shenzhen Xinfengda Hardware Products Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-04-26
Anticipated expiration: 2031-11-18

Abstract

The utility model belongs to the technical field of bicycle accessories, and particularly relates to an adjustable and replaceable rear hook group of a belt pulley bicycle, which comprises two hook bodies, wherein the two hook bodies are respectively provided with an installation block, two fastening assemblies are arranged between the hook bodies and the installation blocks, the hook bodies and the installation blocks are fixedly connected together through the two fastening assemblies, the installation blocks are provided with installation ports, the hook bodies are rotatably provided with adjusting bolts, the adjusting bolts are in threaded connection with the installation blocks, and one installation block is detachably provided with a connecting block. The belt pulley set can be quickly and conveniently installed on the bicycle frame, different belt pulley sets can be replaced according to actual use requirements, and the tensioning degree of the transmission belt can be adjusted, so that the belt is in the optimal working state.

Description

Adjustable and replaceable rear hook claw group of belt pulley bicycle

Technical Field

The utility model relates to the technical field of bicycle accessories, in particular to an adjustable and replaceable rear hook claw group of a belt pulley bicycle.

Background

The existing bicycle is generally divided into a belt bicycle and a chain bicycle, the chain bicycle is installed by breaking the chain and then connected when being installed with the chain, and the installation and the replacement of the belt chain are very inconvenient because the installation of the mode of breaking the chain can not be adopted during the belt chain of the belt bicycle, the installation mode needs to be selected according to the specific structure of the bicycle frame, therefore, the installation and the replacement of the belt chain are very inconvenient, the installation and the replacement efficiency are low, and therefore, the adjustable replacement rear hook claw group of the belt pulley bicycle is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides an adjustable rear hook claw group for replacing a belt pulley bicycle.

In order to achieve the purpose, the utility model adopts the following technical scheme: collude claw group after adjustable change of belt pulley bicycle, collude the claw body including two, two collude and all be equipped with the installation piece on the claw body, collude and be equipped with two fastening components between claw body and the installation piece, collude claw body and installation piece and pass through two fastening components fixed connection together, the installing port has been seted up on the installation piece, it installs adjusting bolt to rotate on the claw body, adjusting bolt and installation piece threaded connection are in the same place, and demountable installation has the connecting block on one of them installation piece.

Preferably, the mounting block is provided with two sliding grooves and two through holes, and the two through holes are respectively communicated with the corresponding sliding grooves.

Preferably, the fastening assembly comprises a fastening bolt, the fastening bolt penetrates through the hook claw body and is rotatably connected with the hook claw body, the fastening assembly further comprises a square nut movably installed in the sliding groove, and the fastening bolt penetrates through the through hole and is in threaded connection with the square nut.

Preferably, one side of the hook claw body close to the mounting block is provided with a first rotating groove and a second rotating groove, a round hole is formed between the first rotating groove and the second rotating groove, the adjusting bolt comprises a screwing part and a threaded part which are fixedly connected together, the threaded part is rotatably mounted in the second rotating groove, and the screwing part is rotatably mounted in the first rotating groove and penetrates through the round hole and is rotatably connected with the inner wall of the round hole.

Preferably, one side of the mounting block, which is close to the hook claw body, is provided with a protruding portion, the threaded portion penetrates through the protruding portion and is in threaded connection with the protruding portion, and the protruding portion is in sliding connection with the inner wall of the first rotating groove.

Preferably, one side of the mounting block close to the hook claw body is provided with an inner concave part, and the screwing part is positioned in the inner concave part.

Preferably, the hook body is provided with an adjusting hole, and the adjusting hole is communicated with the rotating groove.

Compared with the prior art, the utility model has the beneficial effects that: when the bicycle is installed, the rear wheel hub of the bicycle is fixedly installed in the installation ports of the two installation blocks, when a belt needs to be taken down from a belt wheel fixed on the hub, the four fastening bolts can be unscrewed, so that the four square nuts can flexibly slide in the corresponding sliding grooves, because the installation blocks are not fixed by the two square nuts, a screwdriver can be inserted into the adjusting hole and a screwdriver bit can be embedded into the screwing part, then the screwing part can be driven by the screw to rotate, the position of the lug boss on the thread part is changed along with the rotation of the screwing part, so that the lug boss drives the whole installation block to move towards the direction of the bicycle chain wheel, the tightened belt becomes loose, the screwdriver is rotated in the opposite direction, the belt can be straightened, the connection block is separated from the bicycle frame through the loosening of the belt adjustment, later alright take off the belt from the belt pulley and take out from between two claw bodies with light, also be favorable to establishing new belt cover on the belt pulley simultaneously, later adjust the interval of fixing between flower-drum and the chain wheel on two installation pieces through rotating adjusting bolt, thereby make the elasticity degree of belt reach best operating condition, also can adjust the chain wheel through the belt pulley of changing on the flower-drum and transmit the drive ratio for rear wheel flower-drum when leading to, finally when the position of rear wheel flower-drum and the interval of chain wheel reached the best, alright tighten four fastening bolts, through shortening two square nut and colluding the interval between the claw body, alright together with colluding the claw body and installing the tight fixed of piece.

The belt pulley set can be quickly and conveniently installed on the bicycle frame, different belt pulley sets can be replaced according to actual use requirements, and the tensioning degree of the transmission belt can be adjusted, so that the belt is in the optimal working state.

Drawings

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

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic structural view of the hook claw body and the adjusting bolt of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a schematic view of the mounting block and adjusting bolt of the present invention;

fig. 6 is a schematic structural view of the hook claw body and the adjusting bolt of the present invention.

In the figure: 1. a hook claw body; 11. an adjustment hole; 12. a first rotating groove; 13. a second rotating groove; 2. mounting blocks; 21. an installation port; 22. a chute; 23. a through hole; 24. an inner concave portion; 25. a boss portion; 3. adjusting the bolt; 31. a threaded portion; 32. a screwing part; 4. a fastening assembly; 41. fastening a bolt; 42. a square nut; 5. and (4) connecting the blocks.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: collude claw group after adjustable change of belt pulley bicycle, collude claw body 1 including two, two collude and all be equipped with installation piece 2 on the claw body 1, collude and be equipped with two fastening components 4 between claw body 1 and the installation piece 2, collude claw body 1 and installation piece 2 and pass through two fastening components 4 fixed connection together, the installing port 21 has been seted up on the installation piece 2, collude and rotate on the claw body 1 and install adjusting bolt 3, adjusting bolt 3 is in the same place with 2 threaded connection of installation piece, demountable installation has connecting block 5 on one of them installation piece 2.

Two sliding grooves 22 and two through holes 23 are formed in the mounting block 2, and the two through holes 23 are respectively communicated with the corresponding sliding grooves 22.

The fastening assembly 4 comprises a fastening bolt 41, the fastening bolt 41 penetrates through the hook claw body 1 and is rotatably connected with the hook claw body 1, the fastening assembly 4 further comprises a square nut 42 movably installed in the sliding groove 22, and the fastening bolt 41 penetrates through the through hole 23 and is in threaded connection with the square nut 42.

Collude one side that claw body 1 is close to installation piece 2 and seted up and rotate groove one 12 and rotate groove two 13, have seted up the round hole between rotating groove one 12 and the rotation groove two 13, adjusting bolt 3 includes that fixed connection twists portion 32 and screw portion 31 together, and screw portion 31 rotates and installs in rotating groove two 13, twists portion 32 and rotate and install in rotating groove one 12 and run through the round hole, and rotate with the inner wall of round hole and link together.

The side, close to the hooking claw body 1, of the mounting block 2 is provided with a protruding portion 25, a threaded portion 31 penetrates through the protruding portion 25 and is in threaded connection with the protruding portion 25, and the protruding portion 25 is in sliding connection with the inner wall, located in the first rotating groove 12, of the first rotating groove 12.

One side of the mounting block 2 close to the hook claw body 1 is provided with an inner concave part 24, and the screwing part 32 is positioned in the inner concave part 24.

Specifically, by forming the concave portion 24, the screwing portion 32 can be screwed more easily, and the screwing portion 32 does not affect the mounting block 2.

The hook claw body 1 is provided with an adjusting hole 11, and the adjusting hole 11 is communicated with the second rotating groove 13.

In particular, the hidden adjusting bolt 3 is adjusted through the adjusting hole 11, so that the installation concealment of the adjusting bolt 3 is stronger, the adjusting bolt is not easily influenced by the environment,

the working principle is as follows: when the bicycle is installed, a rear wheel hub of a bicycle is fixedly installed in the installation ports 21 of the two installation blocks 2, when a belt needs to be taken down from a belt pulley fixed on the hub, the four fastening bolts 41 can be unscrewed, so that the four square nuts 42 can flexibly slide in the corresponding sliding grooves 22, because the installation blocks 2 are not fixed by the two square nuts 42, a screwdriver can be inserted into the adjusting hole 11 and can be embedded into the screwing part 32, then the screwing part 32 can be driven by the screw to rotate, along with the rotation of the screwing part 31 driven by the screwing part 32, the position of the bulge 25 on the screw thread part 31 is changed, so that the bulge 25 drives the whole installation block 2 to move towards the chain wheel of the bicycle, the tightened belt becomes loose, and the belt can be tightened by rotating the screwdriver in the opposite direction, through the lax with the belt adjustment, and make connecting block 5 and frame separation, later alright with light take off the belt from the belt pulley and from two colluding taking out between the claw body 1, also be favorable to establishing new belt cover on the belt pulley simultaneously, later adjust the interval between the flower-drum of fixing on two installation pieces 2 and the chain wheel through rotating adjusting bolt 3, thereby make the elasticity degree of belt reach the best operating condition, also can adjust the drive ratio that the chain wheel transmitted for the rear wheel flower-drum through changing the belt pulley on the flower-drum during expert, finally when the position of rear wheel flower-drum and the interval of chain wheel reached the best, alright tighten four fastening bolt 41, through shortening two square nut 42 and colluding the interval between the claw body 1, alright with colluding the fixed of claw body 1 and installation piece 2 together.

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. Collude claw group after adjustable change of belt pulley bicycle, collude claw body (1) including two, its characterized in that: all be equipped with installation piece (2) on two claw bodies (1), it is equipped with two fastening components (4) to collude between claw body (1) and installation piece (2), collude claw body (1) and installation piece (2) and be in the same place through two fastening components (4) fixed connection, install and seted up installing port (21) on piece (2), collude and rotate on claw body (1) and install adjusting bolt (3), adjusting bolt (3) and installation piece (2) threaded connection are in the same place, and demountable installation has connecting block (5) on one of them installation piece (2).

2. The adjustable replaceable rear dropout set of claim 1 wherein: two sliding grooves (22) and two through holes (23) are formed in the mounting block (2), and the two through holes (23) are respectively communicated with the corresponding sliding grooves (22).

3. The adjustable replaceable rear dropout set of claim 2 wherein: the fastening assembly (4) comprises a fastening bolt (41), the fastening bolt (41) penetrates through the hook claw body (1) and is rotatably connected with the hook claw body (1), the fastening assembly (4) further comprises a square nut (42) movably mounted in the sliding groove (22), and the fastening bolt (41) penetrates through the through hole (23) and is in threaded connection with the square nut (42).

4. The adjustable replaceable rear dropout set of claim 1 wherein: collude one side that claw body (1) is close to installation piece (2) and seted up rotation groove one (12) and rotation groove two (13), the round hole has been seted up between rotation groove one (12) and rotation groove two (13), adjusting bolt (3) are including fixed connection twisting together and are moved portion (32) and screw thread portion (31), screw thread portion (31) are rotated and are installed in rotation groove two (13), it rotates and installs in rotation groove one (12) and run through the round hole to twist portion (32), and rotate with the inner wall of round hole and link together.

5. The adjustable replaceable rear dropout set of claim 4 wherein: one side that installation piece (2) are close to colluding claw body (1) is equipped with bellying (25), screw thread portion (31) run through bellying (25) and with bellying (25) threaded connection together, bellying (25) with be located and rotate groove one (12) in and with rotate the inner wall sliding connection of groove one (12) together.

6. The adjustable replaceable rear dropout set of claim 4 wherein: an inner concave part (24) is formed in one side, close to the hook claw body (1), of the mounting block (2), and the screwing part (32) is located in the inner concave part (24).

7. The adjustable replaceable rear dropout set of claim 4 wherein: the hook claw body (1) is provided with an adjusting hole (11), and the adjusting hole (11) is communicated with the second rotating groove (13).