Connecting structure of quick release type transmission chain

Abstract

The utility model belongs to the field of chain connecting structures, and particularly relates to a connecting structure of a quick-release transmission chain, which comprises chain sheets, reinforcing rings are fixedly connected in the chain sheets, connecting shafts are movably connected in the reinforcing rings, hinge columns are fixedly connected to the front surfaces of the chain sheets, connecting frames are hinged to the outer sides of the hinge columns, and the connecting shafts are movably connected with the connecting frames. The connecting frame is provided with a quick dismounting and mounting mechanism, the connecting frame is in sliding connection with the connecting shaft, and the connecting frame is in sliding connection with the chain pieces. The connecting frames, the hinge shafts, the limiting columns and other structures are additionally arranged on the chain pieces, the connecting frames can slide into the connecting shafts, the limiting columns are driven by the elastic force of the springs to slide into the connecting shafts, and the chain is assembled; therefore, the chain is more convenient to disassemble, and the disassembly and assembly of the chain can be completed without deforming a metal piece.

Description

Technical Field

[0001] The utility model relates to the technical field of chain connection structures, in particular to a connection structure of a quick-release transmission chain. Background Art

[0002] Chains can be divided into roller chains, toothed chains and other types according to their structure, among which roller chains are the most widely used. The structure of the roller chain is composed of an inner link plate, an outer link plate, a pin, a sleeve and a roller, wherein the inner link plate and the sleeve, the outer link plate and the pin are respectively connected by interference fit, which are called inner and outer chain links; the roller and the sleeve, the sleeve and the pin are clearance fits, but the connection structure of the traditional chain in the prior art is to limit the connection parts by the plastic deformation of the metal parts during use, and the deformation of the metal parts is troublesome, which makes the installation of the chain inconvenient. Therefore, it is necessary to modify the prior art. Utility Model Content

[0003] The utility model aims to provide a connection structure of a quick-release transmission chain, which solves the problem that the chain is troublesome to disassemble.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a connection structure of a quick-release transmission chain, comprising a chain plate, a reinforcement ring is fixedly connected to the inside of the chain plate, a connecting shaft is movably connected to the inside of the reinforcement ring, a hinge column is fixedly connected to the front of the chain plate, a connecting frame is hinged to the outer side of the hinge column, a quick disassembly mechanism is provided on the connecting frame, the connecting frame is slidably connected to the connecting shaft, and the connecting frame is slidably connected to the chain plate.

[0005] Preferably, a bearing is fixedly connected to the outer side of the connecting shaft, and the bearing is in contact with the chain plate. The bearing can support the sprocket and reduce the friction between the chain and the sprocket.

[0006] Preferably, an annular groove is provided on the outer side of the connecting shaft, and the annular groove is slidably connected to the connecting frame, and the connecting frame can limit the connecting shaft through the annular groove.

[0007] Preferably, the quick disassembly and assembly mechanism includes a connecting rod, the connecting frame is slidably connected to the inside of the connecting rod, one end of the connecting rod close to the connecting shaft is fixedly connected to a limiting column, a spring is provided on the outside of the limiting column, and the connecting rod can guide the movement of the limiting column.

[0008] Preferably, the limiting column is slidably connected to the connecting shaft, and the limiting column is slidably connected to the connecting frame, and the limiting column can limit the connecting frame.

[0009] Preferably, one end of the connecting rod away from the limiting column is fixedly connected with a pull ring, the pull ring is in contact with the connecting frame, and the pull ring can drive the limiting column to move through the connecting rod.

[0010] Preferably, one end of the spring is fixedly connected to the limiting column, and the other end of the spring is fixedly connected to the connecting frame, and the spring can drive the limiting column to automatically reset through elastic force.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model adds structures such as a connecting frame, a hinge shaft and a limit column to the chain plate, so that the connecting frame can slide into the interior of the connecting shaft and the limit column can be driven to slide into the interior of the connecting shaft by the elastic force of the spring to assemble the chain. When disassembly is required, the connecting frame can be separated from the connecting shaft only after the limit column is separated from the connecting shaft, so that the chain can be more easily disassembled and the chain can be assembled and disassembled without deforming the metal parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0014] Figure 2 For the utility model Figure 1 A three-dimensional diagram of a connecting frame;

[0015] Figure 3 For the utility model Figure 1 A front cross-sectional view of

[0016] Figure 4 For the utility model Figure 3 A-section structure enlarged view.

[0017] In the figure: 1. chain plate; 2. reinforcement ring; 3. connecting shaft; 4. bearing; 5. hinge column; 6. connecting frame; 7. quick disassembly and assembly mechanism; 8. ring groove; 71. connecting rod; 72. limit column; 73. spring; 74. pull ring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1 , Figure 2 , Figure 3A connection structure of a quick-release transmission chain includes a chain plate 1, a reinforcement ring 2 is fixedly connected to the inside of the chain plate 1, a connecting shaft 3 is movably connected to the inside of the reinforcement ring 2, a hinge column 5 is fixedly connected to the front of the chain plate 1, a connecting frame 6 is hingedly connected to the outer side of the hinge column 5, a quick disassembly mechanism 7 is provided on the connecting frame 6, the connecting frame 6 is slidably connected to the connecting shaft 3, and the connecting frame 6 is slidably connected to the chain plate 1.

[0020] See also Figure 1 A bearing 4 is fixedly connected to the outer side of the connecting shaft 3. The bearing 4 is in contact with the chain plate 1. The bearing 4 can support the sprocket to reduce the friction between the chain and the sprocket. An annular groove 8 is opened on the outer side of the connecting shaft 3. The annular groove 8 is slidably connected to the connecting frame 6. The connecting frame 6 can limit the connecting shaft 3 through the annular groove 8.

[0021] See also Figure 1 , Figure 3 , Figure 4 The quick disassembly and assembly mechanism 7 includes a connecting rod 71, and the connecting rod 71 is slidably connected to the inside of the connecting frame 6. The end of the connecting rod 71 close to the connecting shaft 3 is fixedly connected to the limiting column 72, and a spring 73 is arranged on the outside of the limiting column 72. The connecting rod 71 can guide the movement of the limiting column 72, and the limiting column 72 is slidably connected to the connecting shaft 3, and the limiting column 72 is slidably connected to the connecting frame 6. The limiting column 72 can limit the connecting frame 6. The end of the connecting rod 71 away from the limiting column 72 is fixedly connected to a pull ring 74, and the pull ring 74 contacts the connecting frame 6. The pull ring 74 can drive the limiting column 72 to move through the connecting rod 71, one end of the spring 73 is fixedly connected to the limiting column 72, and the other end of the spring 73 is fixedly connected to the connecting frame 6. The spring 73 can drive the limiting column 72 to automatically reset through elastic force.

[0022] The specific implementation process of the utility model is as follows: when the chain needs to be disassembled, pull the pull ring 74, the pull ring 74 drives the connecting rod 71 to move, and the connecting rod 71 can drive the limiting column 72 to move in the direction of disengaging from the connecting shaft 3, and compress the spring 73. When the limiting column 72 is separated from the connecting shaft 3, the limiting of the connecting frame 6 can be released, and then the connecting frame 6 can be rotated, so that the connecting frame 6 is separated from the connecting shaft 3 and the limiting of the connecting shaft 3 can be released, thereby making the chain disassembly more convenient.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-release transmission chain connection structure, comprising a chain plate (1), characterized in that: The chain plate (1) is fixedly connected to a reinforcement ring (2) inside, the reinforcement ring (2) is movably connected to a connecting shaft (3) inside, the front of the chain plate (1) is fixedly connected to a hinge column (5), the outer side of the hinge column (5) is hinged to a connecting frame (6), the connecting frame (6) is provided with a quick disassembly mechanism (7), the connecting frame (6) is slidably connected to the connecting shaft (3), and the connecting frame (6) is slidably connected to the chain plate (1).

2. The connection structure of a quick-release transmission chain according to claim 1, characterized in that: A bearing (4) is fixedly connected to the outer side of the connecting shaft (3), and the bearing (4) is in contact with the chain plate (1).

3. The connection structure of a quick-release transmission chain according to claim 1, characterized in that: An annular groove (8) is provided on the outer side of the connecting shaft (3), and the annular groove (8) is slidably connected to the connecting frame (6).

4. The connection structure of a quick-release transmission chain according to claim 1, characterized in that: The quick disassembly and assembly mechanism (7) comprises a connecting rod (71), the interior of the connecting frame (6) is slidably connected to the connecting rod (71), one end of the connecting rod (71) close to the connecting shaft (3) is fixedly connected to a limiting column (72), and a spring (73) is provided on the outer side of the limiting column (72).

5. The connection structure of a quick-release transmission chain according to claim 4, characterized in that: The limiting column (72) is slidably connected to the connecting shaft (3), and the limiting column (72) is slidably connected to the connecting frame (6).

6. The connection structure of a quick-release transmission chain according to claim 4, characterized in that: One end of the connecting rod (71) away from the limiting column (72) is fixedly connected to a pull ring (74), and the pull ring (74) is in contact with the connecting frame (6).

7. The connection structure of a quick-release transmission chain according to claim 4, characterized in that: One end of the spring (73) is fixedly connected to the limiting column (72), and the other end of the spring (73) is fixedly connected to the connecting frame (6).

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