CN211589935U

CN211589935U - Quick chain dismounting device

Info

Publication number: CN211589935U
Application number: CN202020023302.1U
Authority: CN
Inventors: 黄加勤
Original assignee: Hangzhou Tengfei Chain Co ltd
Current assignee: Hangzhou Tengfei Chain Co ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-09-29
Anticipated expiration: 2030-01-07

Abstract

The utility model discloses a quick dismounting device of chain, including device main part and set screw, the fixed handle that is provided with of downside of device main part, and the junction of handle and device main part has seted up spacing spout, sliding block in the upside fixedly connected with of outer movable block, and the fixed latch that is provided with in both ends of sliding block, the threaded rod is installed to the inboard of drive block, and the fixed adapter sleeve that is provided with in outer end of threaded rod, the thimble is installed to the inner of threaded rod, and the thimble is connected with the threaded rod through set screw, the inside of device main part is provided with the spring, and the front end of spring is connected with interior sliding block. This quick dismounting device of chain can pass the chain with the latch to can fix the state of chain in the device main part, simultaneously through the spring, can make the stable inboard of connecting at the bearing piece of chain, thereby guarantee the stable state of chain, with convenient subsequent dismantlement work, improved the dismantlement efficiency of this chain.

Description

Quick chain dismounting device

Technical Field

The utility model relates to a technical field is dismantled to the chain, specifically is a quick dismounting device of chain.

Background

The chain is a conventional mechanical transmission member, and is most commonly used on bicycles at present, and various dismounting devices are generally used when the chain is dismounted, and although various dismounting devices exist in the market at present, some dismounting devices have certain problems in use.

For example, some dismounting devices are inconvenient to operate in use, and when the chain is dismounted, the connection state with the chain is movable, so that the chain is easy to fall off when the chain is dismounted, the dismounting work of the chain is inconvenient to finish, and the dismounting efficiency of the chain is reduced.

We propose a device for quick removal of the chain in order to solve the problems set out above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a quick dismounting device of chain to solve some chain dismounting devices on the existing market that above-mentioned background art provided and when dismantling the chain, cause droing of chain easily, thereby inconvenient dismantlement work of accomplishing the chain has just also reduced the problem of chain dismantlement efficiency.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a quick dismounting device of chain, includes device main part and set screw, the fixed handle that is provided with of downside of device main part, and the junction of handle and device main part has seted up spacing spout to the internal connection of spacing spout has outer movable block, sliding block in the upside fixedly connected with of outer movable block, and the fixed latch that is provided with in both ends of sliding block, the fixed bearing block and the drive block that is provided with of upside of device main part, the threaded rod is installed to the inboard of drive block, and the fixed adapter sleeve that is provided with in outer end of threaded rod to the inside of adapter sleeve is provided with the torsion bar, the thimble is installed to the inner of threaded rod, and the thimble is connected with the threaded rod through set screw, the inside of device main part is provided with the spring, and the front end of sliding block is.

Preferably, the device main part and the handle are welded, and the inner size of a limiting sliding groove at the joint of the device main part and the handle is equal to the outer size of the outer movable block.

Preferably, the shape of the inner sliding block is a regular quadrangular prism, the inner sliding block is of a sliding structure in the device body, and the upper side of the inner sliding block and the latch are symmetrically arranged relative to the center of the bearing block.

Preferably, the bearing block, the driving block and the device body are of an integrated structure, and the driving block is in threaded connection with the threaded rod.

Preferably, the same axis is arranged among the bearing block, the threaded rod and the ejector pin, and the size of the inner side space of the bearing block is larger than the outer diameter of the ejector pin.

Preferably, be embedded connection between thimble and the threaded rod, and set screw runs through and is threaded connection between thimble and the threaded rod to set screw buries underground at the threaded rod inboard.

Compared with the prior art, the beneficial effects of the utility model are that: the chain quick-disassembling device;

(1) the device main body is provided with the outer movable block, the inner sliding block, the clamping teeth and the spring, the clamping teeth can penetrate through the chain through the arrangement of the clamping teeth, so that the state of the chain on the device main body can be fixed, and meanwhile, the chain can be stably connected to the inner side of the bearing block through the spring, so that the stable state of the chain is ensured, the subsequent disassembling work is facilitated, and the disassembling efficiency of the chain is improved;

(2) the ejector pin is arranged at the front end of the threaded rod and is connected with the threaded rod through the fixing screw, so that the ejector pin can be conveniently replaced to guarantee normal work of the dismounting device, the falling-off condition of the ejector pin when the threaded rod rotates can be avoided, and the working performance of the dismounting device is improved.

Drawings

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

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

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

FIG. 4 is a schematic cross-sectional view of the main body of the device of the present invention;

fig. 5 is a schematic view of a cross-sectional structure of the thimble according to the present invention.

In the figure: 1. a device main body; 2. a handle; 3. an outer movable block; 4. an inner slider; 5. clamping teeth; 6. a bearing block; 7. a drive block; 8. a threaded rod; 9. connecting sleeves; 10. a torsion bar; 11. a thimble; 12. a spring; 13. a limiting chute; 14. and fixing the screw.

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. 1-5, the present invention provides a technical solution: a chain quick dismounting device comprises a device main body 1, a handle 2, an outer movable block 3, an inner movable block 4, a latch 5, a bearing block 6, a driving block 7, a threaded rod 8, a connecting sleeve 9, a torsion rod 10, an ejector pin 11, a spring 12, a limiting chute 13 and a fixing screw 14, wherein the lower side of the device main body 1 is fixedly provided with the handle 2, the connecting part of the handle 2 and the device main body 1 is provided with the limiting chute 13, the inner part of the limiting chute 13 is connected with the outer movable block 3, the upper side of the outer movable block 3 is fixedly connected with the inner sliding block 4, two ends of the inner movable block 4 are fixedly provided with the latch 5, the upper side of the device main body 1 is fixedly provided with the bearing block 6 and the driving block 7, the inner side of the driving block 7 is provided with the threaded rod 8, the outer end of the threaded rod 8 is fixedly provided with the connecting sleeve 9, the inner part of the, the thimble 11 is connected with the threaded rod 8 through a fixing screw 14, a spring 12 is arranged in the device body 1, and the front end of the spring 12 is connected with the inner sliding block 4.

For the welding between device main part 1 and the handle 2, and the 13 inside dimensions of spacing spout of device main part 1 and the handle 2 junction equal outer movable block 3 overall dimension, can guarantee the 3 stable active states of outer movable block to sliding block 4 and latch 5's activity in can conveniently controlling has also improved the stability of interior sliding block 4 and latch 5 active states.

The appearance of interior sliding block 4 is regular quadrangular, and interior sliding block 4 is the sliding construction in device main part 1 is inside to interior sliding block 4 to 4 upsides of interior sliding block and latch 5 are in the setting of 6 centrosymmetries of bearing block, guarantee interior sliding block 4 in the inside directional and stable slip process of device main part 1, also can guarantee the accurate positioning process of chain on latch 5.

The integrated structure is arranged between the bearing block 6 and the driving block 7 as well as the device main body 1, and the driving block 7 and the threaded rod 8 are in threaded connection, so that the overall stability of the device is ensured, and the device can work normally.

The bearing block 6, the threaded rod 8 and the ejector pin 11 are coaxial, and the inner space size of the bearing block 6 is larger than the outer diameter of the ejector pin 11, so that the normal operation of chain dismounting can be ensured, the device can be suitable for chains of different sizes, and the use value of the device is improved.

The thimble 11 is connected with the threaded rod 8 in an embedded mode, the fixing screw 14 penetrates through the thimble 11 and the threaded rod 8 to be in threaded connection, the fixing screw 14 is embedded in the inner side of the threaded rod 8, replacement of the thimble 11 can be facilitated, meanwhile, the thimble 11 can be prevented from falling off due to rotation of the threaded rod 8, and normal working state of the device is guaranteed.

The working principle is as follows: when the chain quick dismounting device is used, firstly, according to the figures 1-5, the assembly work of the device needs to be completed firstly, the thimble 11 can be firstly installed at the front end of the threaded rod 8 and fixed through the fixing screw 14 (as shown in figure 5), then, the threaded rod 8 is connected to the driving block 7 in a threaded manner, the threaded rod 8 penetrates through the driving block 7, and meanwhile, the thimble 11 in the front end of the threaded rod 8 is positioned between the bearing block 6 and the driving block 7, so that the assembly work of the device is completed;

when the chain needs to be disassembled and assembled, according to the figures 2-4, the threaded rod 8 can be rotated through the torsion rod 10, the thimble 11 is far away from the bearing block 6, then the outer movable block 3 on the handle 2 is held by a hand, the outer movable block 3 is moved into the limit sliding groove 13, the inner sliding block 4 can be linked to move towards the middle position of the device main body 1, the latch 5 can also move to the middle position of the bearing block 6 and the driving block 7, then the chain is clamped on the latch 5 to fix the chain, then the outer movable block 3 is released, the inner sliding block 4 is moved through the spring 12, the chain connecting part on the latch 5 is attached to the inner side of the bearing block 6, and the chain can be fixed on the device through the mode;

then, the screw rod 8 is rotated by the torsion rod 10, the thimble 11 is made to abut against the joint of the chain, the screw rod 8 is continuously rotated, so that the bayonet lock on the chain can be ejected out through the thimble 11, thereby completing the disassembly and assembly work of the chain, and the using process of the device is completed, and the content which is not described in detail in the specification belongs to the prior art which is known by the professional in the field.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A quick chain dismounting device comprises a device main body (1) and a fixing screw (14), and is characterized in that: the device is characterized in that a handle (2) is fixedly arranged on the lower side of the device main body (1), a limiting sliding groove (13) is formed in the joint of the handle (2) and the device main body (1), an outer movable block (3) is connected inside the limiting sliding groove (13), an inner sliding block (4) is fixedly connected on the upper side of the outer movable block (3), clamping teeth (5) are fixedly arranged at two ends of the inner sliding block (4), a bearing block (6) and a driving block (7) are fixedly arranged on the upper side of the device main body (1), a threaded rod (8) is arranged on the inner side of the driving block (7), a connecting sleeve (9) is fixedly arranged at the outer end of the threaded rod (8), a torsion rod (10) is arranged inside the connecting sleeve (9), a thimble (11) is arranged at the inner end of the threaded rod (8), and the thimble (11) is connected with the threaded rod (8) through, the device is characterized in that a spring (12) is arranged inside the device body (1), and the front end of the spring (12) is connected with an inner sliding block (4).

2. The device for quickly disassembling the chain according to claim 1, characterized in that: the device is characterized in that the device main body (1) and the handle (2) are welded, and the inner size of a limiting sliding groove (13) at the joint of the device main body (1) and the handle (2) is equal to the outer size of the outer movable block (3).

3. The device for quickly disassembling the chain according to claim 1, characterized in that: the appearance of interior sliding block (4) is regular quadrangular prism, and interior sliding block (4) is the sliding construction in device main part (1) inside to interior sliding block (4) upside and latch (5) set up about bearing block (6) centrosymmetry.

4. The device for quickly disassembling the chain according to claim 1, characterized in that: the bearing block (6), the driving block (7) and the device body (1) are of an integrated structure, and the driving block (7) and the threaded rod (8) are in threaded connection.

5. The device for quickly disassembling the chain according to claim 1, characterized in that: the bearing block (6) and the threaded rod (8) and the ejector pin (11) are arranged on the same axis, and the inner space size of the bearing block (6) is larger than the outer diameter of the ejector pin (11).

6. The device for quickly disassembling the chain according to claim 1, characterized in that: the thimble (11) is connected with the threaded rod (8) in an embedded mode, the fixing screw (14) penetrates through the thimble (11) and is connected with the threaded rod (8) in a threaded mode, and the fixing screw (14) is buried in the inner side of the threaded rod (8).