Roller chain shackle structure

Abstract

The utility model discloses a roller chain chain shackle structure which comprises a first buckle plate and a second buckle plate, a first pin shaft and a second pin shaft are symmetrically arranged on one side of the first buckle plate, a first limiting hole and a second limiting hole are symmetrically formed in the second buckle plate, a first sliding groove is formed in one side of the first limiting hole, and a second sliding groove is formed in one side of the second limiting hole. A first sliding groove is formed in one side of the first limiting hole, a penetrating hole is formed in the other end of the first sliding groove, a second sliding groove is formed in one side of the second limiting hole, the diameter of the penetrating hole is larger than that of the end of the pin shaft, the first sliding groove is of a rectangular structure, the second sliding groove is of an arc-shaped structure, and the circle center of the arc is located on the axis of the first limiting hole. Due to the design of the chain shackle structure, the chain can be quickly connected and detached without tools in different mechanical equipment, particularly in systems needing to be frequently detached or maintained, so that the maintenance efficiency and the reliability of the equipment are improved.

Description

Technical Field

[0001] The utility model relates to the field of chains, in particular to a roller chain buckle structure. Background Art

[0002] Roller chains are widely used in mechanical transmission systems, usually for transmitting power and motion. The chain buckle is an important component that connects the chain links. The structure and performance of the chain buckle directly affect the installation convenience and service life of the chain. In order to meet actual use needs, the chain needs to be lengthened and the ends need to be connected to form a closed loop structure. Generally speaking, there are two ways to connect the chain. The first is to use a magic buckle for connection, and the second is to use a chain pin. The current magic buckle requires tools such as quick-release pliers or needle-nosed pliers when disassembling, which is inconvenient.

[0003] Therefore, it is particularly important to design a roller chain link structure. Utility Model Content

[0004] The utility model aims to provide a roller chain buckle structure, which can realize fast chain connection and disassembly without tools.

[0005] The technical solution adopted by the utility model to solve the above-mentioned problem is: a roller chain link structure, including a first buckle plate and a second buckle plate, one side of the first buckle plate is symmetrically provided with a first pin shaft and a second pin shaft, the second buckle plate is symmetrically provided with a first limiting hole and a second limiting hole, one side of the first limiting hole is provided with a first slide groove, the other end of the first slide groove is provided with a through hole, one side of the second limiting hole is provided with a second slide groove, the diameter of the through hole is larger than the diameter of the end of the pin shaft, the first slide groove is a rectangular structure, the second slide groove is an arc structure, and the center of the arc is located on the axis line of the first limiting hole.

[0006] Preferably: an arc-shaped connecting seat is provided on one side of the second buckle plate, coaxially with the first limiting hole and the second limiting hole, and the connecting seat is rotatably connected to a lock buckle, and a notch is provided on one side of the lock buckle.

[0007] Preferably, the connecting seat is provided with an arc-shaped guide bar, and the lock buckle is provided with an arc-shaped guide groove slidably matched with the arc-shaped guide bar.

[0008] Preferably: the lock buckle is provided with a gourd-shaped limiting groove, the lock buckle is plugged and adapted with a limiting strip, both ends of the limiting strip are respectively provided with limiting parts plugged and adapted with the limiting groove, a plug is provided on one side of the limiting part, and a socket is provided in the limiting groove.

[0009] Preferably, the lock buckle adopts a cylindrical outer contour design, and a strip-shaped protrusion structure is provided on its side.

[0010] Preferably: the plug is made of elastic material.

[0011] Compared with the prior art, the utility model has the following advantages and effects:

[0012] The utility model places the sleeve between the inner chain plates, the first buckle plate fits the outer side of the inner chain plate, the first pin shaft and the second pin shaft pass through the inner chain plate and the sleeve, the first pin shaft passes through the first through hole, slides along the first slide groove to the first limiting hole, the second buckle plate swings around the first pin shaft, and the second pin shaft slides along the second slide groove into the second limiting hole to complete the installation of the chain buckle structure; by rotating the second buckle plate, the second pin shaft is disengaged from the second limiting hole, the second buckle plate is moved, the first pin shaft slides from the first limiting hole to the through hole, and then the first buckle plate is removed to complete the disassembly of the chain buckle structure. The design of the chain buckle structure of the utility model enables fast and tool-free chain connection and disassembly in different mechanical equipment, especially those systems that require frequent disassembly or maintenance, thereby improving maintenance efficiency and equipment reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a stereoscopic diagram of a roller chain link structure according to an embodiment of the utility model.

[0014] Figure 2 It is an exploded view of a roller chain link structure according to an embodiment of the utility model.

[0015] Figure 3 It is a schematic diagram of the installation of a roller chain link structure according to an embodiment of the utility model.

[0016] Figure 4 It is a structural schematic diagram of the second gusset plate of an embodiment of the utility model.

[0017] Figure 5 It is a structural schematic diagram of a lock buckle according to an embodiment of the utility model.

[0018] Figure 6 It is a structural schematic diagram of a limit strip according to an embodiment of the utility model.

[0019] Figure numbers: first buckle plate 1, first pin shaft 11, second pin shaft 12, second buckle plate 2, first limiting hole 21, second limiting hole 22, first slide groove 23, through hole 24, second slide groove 25, connecting seat 26, guide bar 27, inner link plate 31, sleeve 32, outer link plate 33, lock buckle 4, edge 41, notch 42, guide groove 43, limiting groove 44, jack 45, buckle 46, protrusion structure 47, limiting strip 5, limiting portion 51, plug 52. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0021] Example: See Figure 1 - Figure 6 In the present embodiment, a roller chain link structure is provided, which is specifically used for transmitting mechanical power, and specifically comprises: a first buckle plate 1 and a second buckle plate 2, wherein one side of the first buckle plate 1 is symmetrically provided with a first pin shaft 11 and a second pin shaft 12, and the second buckle plate 2 is symmetrically provided with a first limiting hole 21 and a second limiting hole 22, one side of the first limiting hole 21 is provided with a first slide groove 23, and the other end of the first slide groove 23 is provided with a through hole 24, one side of the second limiting hole 22 is provided with a second slide groove 25, and the diameter of the through hole 24 is larger than the diameter of the end of the pin shaft, the first slide groove 23 is a rectangular structure, and the second slide groove 25 is an arc structure, and the center of the arc is located on the axis line of the first limiting hole 21.

[0022] Specifically, in this embodiment, when installing the chain buckle, first ensure that the ends of the chains to be connected are all on the inner side (the connection of the chain buckle structure of the present invention is only applicable to the case where the ends of the chains are all on the inner chain plates 31). First, the ends of the chains need to be brought close to each other, and then the sleeve 32 is placed between the inner chain plates 31, and one side of the first buckle plate 1 fits with the outer side of the inner chain plates 31, so that the first pin 11 and the second pin 12 of the first buckle plate 1 pass through the inner chain plates 31 and the sleeve 32 at both ends of the chain respectively. The second buckle plate 2 is installed so that the first pin 11 passes through the first through hole 24, and the width of the first slide groove 23 matches the outer diameter of the first pin 11. By moving the second buckle plate 2 along the direction of the first slide groove 23, the first pin 11 slides along the first slide groove 23 to the first limiting hole 21, and then the second buckle plate 2 is moved to swing around the first pin 11, and the width of the second slide groove 25 matches the outer diameter of the second pin 12. During the swinging of the second buckle plate 2, the second pin shaft 12 slides into the second slide groove 25 and finally slides into the second limiting hole 22. The disassembly method is opposite to the installation operation. The second buckle plate 2 is rotated to disengage the second pin shaft 12 from the second limiting hole 22. The second buckle plate 2 is moved to make the first pin shaft 11 slide from the first limiting hole 21 to the through hole 24. At this time, the first buckle plate 1 can be directly removed to realize the disassembly of the chain buckle.

[0023] The design of the chain buckle structure of the utility model enables fast and tool-free chain connection and disassembly in different mechanical equipment, especially in systems that require frequent disassembly or maintenance, thereby improving maintenance efficiency and equipment reliability.

[0024] An arc-shaped connection seat 26 is provided concentrically between the first limiting hole 21 and the second limiting hole 22 on one side of the second buckle plate 2. The connection seat 26 is rotatably connected with a lock buckle 4. The lock buckle 4 is provided with an edge 41 adapted to the outer contour of the ends of the first pin shaft 11 and the second pin shaft 12. A notch 42 is provided on one side of the edge 41. The width of the notch 42 is greater than the outer diameter of the ends of the first pin shaft 11 and the second pin shaft 12. During installation, the two lock buckles 4 are rotated so that the notch 42 faces the first slide groove 23 and the second slide groove 25 respectively, so that the end of the first pin shaft 11 slides into the first limiting hole 21 along the first slide groove 23, and the end of the second pin shaft 12 slides into the second limiting hole 22 along the second slide groove 25, thereby realizing the installation of the second buckle plate 2. After the second buckle plate 2 is installed, the two lock buckles 4 are rotated so that their notches 42 are respectively moved to the outside of the first slide groove 23 and the second slide groove 25. At this time, the edge 41 of the lock buckle 4 can prevent the first pin shaft 11 (second pin shaft 12) from detaching from the first limiting hole 21 (second limiting hole 22).

[0025] In this embodiment, the connecting seat 26 is provided with an arc-shaped guide bar 27, and the lock buckle 4 is provided with an arc-shaped guide groove 43 slidably adapted to the arc-shaped guide bar 27, so as to realize the rotational connection between the connecting seat 26 and the lock buckle 4. In addition, the arc-shaped guide bar 27 ends at the first slide groove 23 or the second slide groove 25, and its arc length is greater than the semicircular arc length, so as to prevent the lock buckle 4 from detaching from the connecting seat 26 and ensure the firm connection of the chain buckle.

[0026] See also Figure 5 and Figure 6 The lock buckle 4 is provided with a gourd-shaped limiting groove 44, and the lock buckle 4 is plugged and adapted with the limiting strip 5. The two ends of the limiting strip 5 are respectively provided with limiting parts 51 that are plugged and adapted with the limiting groove 44. A plug 52 is provided on one side of the limiting part 51, and a plug hole 45 is provided in the limiting groove 44. The lock buckle 4 in this embodiment is rotated and locked, so that the notch 42 of the lock buckle 4 at the first limiting hole 21 is rotated to the left, and the notch 42 of the lock buckle 4 at the second limiting hole 22 is rotated to the top. At this time, the limiting grooves 44 of the two lock buckles 4 are symmetrical with respect to the center of the buckle plate. The plug 52 of the limiting part 51 is plugged and adapted with the plug hole 45 in the limiting groove 44, so that the limiting parts 51 at both ends of the limiting strip 5 can be just inserted into the limiting groove 44, completing the installation operation of the limiting strip 5, and the rotation of the lock buckle 4 can be limited.

[0027] The lock buckle 4 is designed with a cylindrical outer contour, and its side is provided with a strip-shaped protrusion structure 47. The lock buckle 4 in this embodiment has protrusion structures 47 for anti-slip arranged evenly around the circumference, so that the user can turn the lock buckle 4 to achieve the constraint effect on the first pin 11 and the second pin 12.

[0028] In this embodiment, the plug 52 is made of elastic material (rubber, silicone, etc.), so that the plug 52 can adapt to the shape when inserted into the limiting groove 44, providing tight sealing and fixation. The limiting groove 44 is also provided with a buckle 46 in the circumferential direction, and the limiting portion 51 of the limiting strip 5 is fixed by the buckle 46, so that the chain buckle has a certain degree of flexibility to adapt to the impact during the chain transmission process and avoid the separation of the limiting strip 5.

[0029] The above contents described in this specification are merely examples of the present utility model. Those skilled in the art of the present utility model may make various modifications or additions to the specific embodiments described, or replace them in similar ways, as long as they do not deviate from the contents of the present utility model specification or exceed the scope defined in the claims, they shall all fall within the protection scope of the present utility model.

Claims

1. A roller chain link structure, comprising a first buckle plate and a second buckle plate, characterized in that: The first buckle plate is symmetrically provided with a first pin and a second pin on one side, and the second buckle plate is symmetrically provided with a first limiting hole and a second limiting hole, a first sliding groove is provided on one side of the first limiting hole, and a through hole is provided on the other end of the first sliding groove, and a second sliding groove is provided on one side of the second limiting hole, and the diameter of the through hole is larger than the diameter of the end of the pin, the first sliding groove is a rectangular structure, and the second sliding groove is an arc structure, and the center of the arc is located on the axis line of the first limiting hole.

2. A roller chain link structure according to claim 1, characterized in that: An arc-shaped connecting seat is arranged concentrically with the first limiting hole and the second limiting hole on one side of the second buckle plate, and a lock buckle is provided for rotational connection of the connecting seat, and a notch is arranged on one side of the lock buckle.

3. A roller chain link structure according to claim 2, characterized in that: The connecting seat is provided with an arc-shaped guide bar, and the lock buckle is provided with an arc-shaped guide groove which is slidably matched with the arc-shaped guide bar.

4. A roller chain link structure according to claim 2, characterized in that: The lock buckle is provided with a gourd-shaped limiting groove, the lock buckle is plugged and adapted with a limiting strip, both ends of the limiting strip are respectively provided with limiting parts plugged and adapted with the limiting groove, a plug is provided on one side of the limiting part, and a socket is provided in the limiting groove.

5. A roller chain link structure according to claim 4, characterized in that: The lock buckle adopts a cylindrical outer contour design, and a strip-shaped protruding structure is arranged on its side.

6. A roller chain link structure according to claim 5, characterized in that: The plug is made of elastic material.

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