CN219198011U - Quick-release flat chain connector - Google Patents

Abstract

The utility model discloses a quick-release flat chain link, which comprises a first half ring, a second half ring and a locking device, wherein the first half ring and the second half ring are mutually spliced, the locking device is used for locking the first half ring and the second half ring with each other, a pin hole is arranged between the first half ring and the second half ring, the end face of the first half ring and the end face of the second half ring are perpendicular to the axis of the pin hole, the pin hole is arranged between two connecting holes of the chain link, the locking device comprises a bolt inserted from one end of the pin hole and a socket inserted from the other end of the pin hole, and the bolt is in socket connection with the socket. The bolt and the socket can be made into thick and short shapes, so that the rigidity of the bolt and the socket can be greatly improved, the bolt and the socket are not easy to deform, and the bolt or the socket cannot be deformed to cause difficult disassembly and assembly.

Description

Quick-release flat chain connector

Technical Field

The utility model relates to a chain connecting piece, in particular to a quick-release flat chain connecting ring.

Background

The chain is formed by a plurality of chain link ring rings which are connected in sequence, the two ends of the chain are required to be connected sometimes, the chain is formed into a ring shape, and a plurality of short chains are required to be connected to a long chain sometimes, so that the chain connecting ring is required to be used.

The traditional chain connecting ring is composed of two half rings which are mutually inserted, and after the two half rings are mutually inserted together by means of teeth arranged on the two half rings, the two half rings are locked by means of groove pins penetrating through the side surfaces of the two half rings, so that the two half rings are prevented from being separated, and holes for penetrating through the groove pins are drilled in the two half rings.

The distance between the two semi-ring sides is larger, so that the length of the required groove pin is longer, the diameter of the hole matched with the groove pin on the semi-ring cannot be too large due to the limitation of the thickness of the chain ring, and otherwise the strength of the chain ring is affected. The slot pin used is elongated, and because of the slots formed therein, it is easily bent and deformed by being struck when it is driven into the half ring, thus making installation difficult. Especially, the long-time use of the chain links can easily rust or block the holes, thereby making the installation of the slot pins more difficult.

When the two semi-rings are disassembled, the slender rod is required to be inserted into a hole matched with the groove pin, and then the end part of the slender rod is hit to eject the groove pin. Similarly, the elongated rod is also easily bent by the impact when it is struck, resulting in difficult removal of the slotted pin. Particularly when the chain link is used for a period of time, the disassembly is more difficult due to the foreign matters or rust in the groove pin.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a quick-release flat chain link, which is used for solving the problem that the chain link is difficult to disassemble and assemble.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a quick detach flat chain link, includes first semi-ring and the second semi-ring of pegging graft each other and is used for the locking device with first semi-ring and the mutual locking of second semi-ring, be equipped with the pinhole between first semi-ring and the second semi-ring, the terminal surface of first semi-ring and the terminal surface of second semi-ring are all perpendicular with the axis of pinhole, the pinhole sets up between two connecting holes of chain link, locking device includes by pinhole one end male bolt and by pinhole other end male socket, bolt and socket connection.

Further, the bolt is inserted into a hole correspondingly arranged in the center of the socket, and an annular first boss for axially positioning the socket is arranged on the circumference of the outer end of the socket.

Further, the bolt center is equipped with the through-hole, the bolt runs through elastic connection with the socket, the bolt is close to the outer circle of one end of socket and distributes along the circumferencial direction and have the outwards outstanding jack catch, the jack catch card is in the outside of socket, is equipped with rectangular first opening between the adjacent jack catch, first opening sets up along the bolt axial.

Further, an elastic pin is inserted in the through hole, and the bolt is elastically connected with the elastic pin.

Further, a second boss for axially positioning the plug pin is arranged on the circumference of one end of the plug pin, which is far away from the socket.

Further, the two end faces of the first semi-ring and the two end faces of the second semi-ring are both provided with pits, and the first boss and the second boss are both arranged in the corresponding pits.

Further, a chamfer is arranged on the outer circle of one end of the bolt, which is close to the socket.

Further, a counter bore is formed in one end, corresponding to the clamping jaw, of the socket, and the clamping jaw is arranged in the counter bore.

The utility model has the positive effects that:

the utility model is provided with the first semi-ring, the second semi-ring, the bolt, the socket and the elastic pin, because the thickness of the first semi-ring and the second semi-ring is far smaller than the distance between the two side surfaces of the first semi-ring and the second semi-ring, the diameter of the bolt and the socket can not be limited by the thickness of the first semi-ring and the second semi-ring, and the bolt and the socket can be made into thick and short shapes and are not long and thin any more, thereby greatly improving the rigidity of the bolt and the socket, and the bolt and the socket do not need to be hit when being installed, so the bolt and the socket can not be deformed, and the disassembly and the assembly are not difficult due to the deformation of the bolt or the socket. The bolt and the socket are connected by the claw, and the first semi-ring and the second semi-ring are clamped, so that the utility model is prevented from being disassembled due to the separation of the bolt and the socket when in use, and the utility model is safer when in use.

Drawings

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

FIG. 2 is a cross-sectional view of the portion B-B of FIG. 1;

FIG. 3 is a perspective view of the present utility model;

FIG. 4 is a front view of the first half and the second half;

FIG. 5 is a schematic illustration of the first half and the second half after mating with each other;

FIG. 6 is a schematic structural view of a socket;

FIG. 7 is a left side view of FIG. 5;

fig. 8 is a perspective view of a socket;

FIG. 9 is a schematic view of the structure of the latch;

FIG. 10 is a right side view of FIG. 9;

FIG. 11 is a perspective view of the latch;

FIG. 12 is a schematic illustration of a prior art connection of a first half and a second half;

in the figure:

1. a first half ring; 2. a socket; 3. a plug pin; 4. a second half ring; 5. an elastic pin; 6. chamfering; 7. a connection hole; 8. a pin hole; 9. a grooved pin; 10. a claw; 11. a first opening; 12. a first boss; 13. a second boss; 14. countersink; 15. a through hole; 16. a second opening; 17. and (5) pit.

Detailed Description

Fig. 12 is a schematic view of a conventional chain link, in which two half rings are inserted into each other, and then elastic slot pins 9 are inserted into the side surfaces of the two half rings, thereby connecting the two half rings.

Example 1

As shown in fig. 1 to 11, a quick-release flat chain link comprises a first half ring 1 and a second half ring 4 which are mutually inserted, and a locking device for locking the first half ring 1 and the second half ring 4 to each other. The first half ring 1 and the second half ring 4 have the same appearance and size.

The inner side of the opening end of the first semi-ring 1 and the inner side of the opening end of the second semi-ring 4 are arc-shaped surfaces, and the arc-shaped surfaces of the first semi-ring 1 and the arc-shaped surfaces of the second semi-ring 4 are coaxial and form a pin hole 8. The end face of the first semi-ring 1 and the end face of the second semi-ring 4 are perpendicular to the axis of the pin hole 8, the pin hole 8 is arranged between two connecting holes 7 of the chain link, and the two connecting holes 7 are respectively used for connecting chain links of a chain.

The locking device comprises a bolt 3 inserted from one end of a pin hole 8 and a socket 2 inserted from the other end of the pin hole 8, wherein the bolt 3 is in socket connection with the socket 2, and the bolt 3 and the socket 2 are made of spring steel, and the material mark is 65Mn.

The plug pin 3 is inserted into a hole correspondingly arranged in the center of the socket 2, and an annular first boss 12 for axially positioning the socket 2 is arranged on the circumference of the outer end of the socket 2.

The center of the plug pin 3 is provided with a through hole 15, the plug pin 3 and the socket 2 penetrate through elastic connection, four outwards protruding claws 10 are uniformly distributed on the outer circle of one end of the plug pin 3, which is close to the socket 2, along the circumferential direction, the claws 10 are clamped on the outer side of the socket 2, a strip-shaped first opening 11 is formed between every two adjacent claws 10, and the first opening 11 is axially arranged along the plug pin 3. The circumference of the end, far away from the socket, of the plug pin 3 is provided with an annular second boss 13 for axially positioning the socket 2. The outer circle of the plug pin 3, which is close to one end of the socket 2, is provided with a chamfer 6.

The two end surfaces of the first semi-ring 1 and the two end surfaces of the second semi-ring 4 are respectively provided with a pit 17, the first boss 12 and the second boss 13 are respectively arranged in the corresponding pits 17, and the outer surface of the first boss 12 and the outer surface of the second boss 13 are respectively lower than the corresponding end surfaces of the first semi-ring 1 and the second semi-ring 4, so that the plug pin 3 and the socket 2 are prevented from being knocked or worn.

An elastic pin 5 is inserted into the through hole 15, and the plug pin 3 is elastically connected with the elastic pin 5. The elastic pin 5 is made of spring steel with the mark of 65Mn, the elastic pin 5 is cylindrical, two second notches 16 are uniformly distributed on one end, close to the elastic pin 5, in the circumferential direction, of the elastic pin 5, and the second notches 16 are axially arranged along the elastic pin 5. When the elastic pin 5 is inserted into the through hole 15, the elastic pin is clamped in the through hole 15, so that the latch 3 and the socket 2 are prevented from being separated due to the fact that the claw 10 is accidentally retracted inwards, and the first half ring 1 and the second half ring 4 are prevented from being separated. The reliability of the utility model can thus be increased by providing the elastic pin 5.

The installation process of the utility model is as follows:

1. the first half ring 1 and the second half ring 4 are respectively hung on two chain links, and the first half ring 1 and the second half ring 4 are inserted together.

2. The plug 3 and the socket 2 are respectively inserted from two ends of the small hole 8, the claw 10 is firstly contracted inwards, and when the claw 10 passes through the hole in the center of the socket 2 and is then opened, the first boss 12 and the second boss 13 respectively enter into the chamfers on the first half ring 1 and the second half ring 4.

3. The elastic pin 5 is driven into the through hole 15.

During disassembly, the elastic pin 5 is firstly ejected by using the short rod, then the pipe is sleeved on the chamfer 6, the claw 10 is contracted inwards when the pipe is hit, the bolt 3 is ejected, the socket 2 is taken out, and the first half ring 1 and the second half ring 4 are separated.

Since the thicknesses of the first half ring 1 and the second half ring 4 are far smaller than the distance between the two side surfaces thereof, the diameters of the plug pin 3 and the socket 2 are not limited by the thicknesses of the first half ring 1 and the second half ring 4, and thus the plug pin 3 and the socket 2 can be made into thick and short shapes. Therefore, the rigidity of the plug pin 3 and the socket 2 can be greatly improved, the plug pin 3 and the socket 2 are not easy to deform, and the disassembly and assembly difficulty caused by the deformation of the plug pin 3 or the socket 2 can not occur.

Example 2

This embodiment differs from embodiment 1 in that:

the edges of the first boss 12 are machined with two mutually parallel planes. The edge of the second boss 13 is also machined with two mutually parallel planes. The positions of the chamfers of the first semi-ring 1 and the second semi-ring 4 matched with the first boss 12 and the second boss 13 are correspondingly provided with planes, so that the bolt 3 and the socket 2 are prevented from being worn due to rotation when the novel socket is used, and the service life of the novel socket is prolonged.

Example 3

This embodiment differs from embodiment 2 in that:

the socket 2 is provided with a counter bore 14 at one end corresponding to the claw 10, and the claw 10 is arranged in the counter bore 14 and is clamped at the bottom of the counter bore 14.

The counter bore 14 protects the jaws 10 from accidental knocks.

The foregoing description of the embodiments of the present utility model has been presented only to illustrate the technical spirit and features of the present utility model, and it is intended to enable those skilled in the art to understand the present utility model and to implement it, but not to limit the scope of the present utility model only by the present embodiments, i.e. equivalent changes or modifications to the spirit of the present utility model disclosed herein, and it is intended for those skilled in the art to make local improvements in the system and changes, variations between subsystems, etc. within the scope of the present utility model without departing from the structure of the present utility model. At present, the technical scheme of the application has been subjected to pilot-scale experiments, namely small-scale experiments of products before large-scale mass production; after the pilot test is completed, the use investigation of the user is performed in a small range, and the investigation result shows that the user satisfaction is higher; now, the industrialization of the formal production of the product is prepared, including the early warning investigation of intellectual property risks.

Claims (8)

1. The utility model provides a quick detach flat chain link, includes first semi-ring (1) and second semi-ring (4) of pegging graft each other and is used for the locking device of first semi-ring (1) and second semi-ring (4) mutual locking, a serial communication port, be equipped with pinhole (8) between first semi-ring (1) and second semi-ring (4), the terminal surface of first semi-ring (1) and second semi-ring (4) all are perpendicular with the axis of pinhole (8), pinhole (8) set up between two connecting hole (7) of chain link, locking device includes bolt (3) by pinhole (8) one end male and socket (2) by pinhole (8) other end male, bolt (3) and socket (2) socket joint.

2. A quick release flat connection link according to claim 1, characterized in that the plug pin (3) is inserted into a hole provided in the center of the socket (2) in correspondence therewith, and that the circumference of the outer end of the socket (2) is provided with an annular first boss (12) for axially positioning the socket (2).

3. The quick-release flat chain link according to claim 2, characterized in that a through hole (15) is arranged in the center of the plug pin (3), the plug pin (3) is in penetrating elastic connection with the socket (2), outwards protruding claws (10) are distributed on the outer circle of one end of the plug pin (3) close to the socket (2) along the circumferential direction, the claws (10) are clamped on the outer side of the socket (2), a strip-shaped first opening (11) is arranged between every two adjacent claws (10), and the first opening (11) is axially arranged along the plug pin (3).

4. A quick release flat connection link according to claim 3, characterized in that the through hole (15) is inserted with an elastic pin (5), the plug pin (3) being elastically connected with the elastic pin (5).

5. A quick release flat connector ring according to claim 3, characterized in that the end of the pin (3) remote from the socket (2) is provided with a second boss (13) for axially positioning the pin (3).

6. The quick-release flat connection ring according to claim 5, characterized in that both end faces of the first half ring (1) and both end faces of the second half ring (4) are provided with recesses (17), and the first boss (12) and the second boss (13) are arranged in the corresponding recesses (17).

7. A quick release flat connector ring according to claim 3, wherein the outer circumference of the plug (3) near one end of the socket (2) is provided with a chamfer (6).

8. A quick release flat connection ring according to claim 3, characterized in that the socket (2) is provided with a counter bore (14) at the end corresponding to the jaw (10), the jaw (10) being arranged in the counter bore (14).

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