Roller chain joint assembly

Abstract

The utility model discloses a roller chain connector assembly which comprises a connector body and a limiting mechanism. A through groove is formed in the connector body, an insertion rod is inserted into the through groove, and an annular block is fixedly arranged on the insertion rod in a sleeving mode; the limiting mechanism comprises an empty groove and a threaded groove which are formed in the inserting rod, one side of the threaded groove communicates with the empty groove, the inner side wall of the threaded groove is in threaded connection with a threaded rod, and one end of the threaded rod is fixedly connected with a connecting rod. According to the roller chain connector assembly, the limiting mechanism is arranged on the connector body, after an inserting rod penetrates through a through groove, a link rod can be driven to move by screwing up a threaded rod, so that an arc-shaped block can extrude two movable check blocks out of an empty groove at the same time, and then the inserting rod cannot be disengaged from the through groove under the action of an annular block and the movable check blocks; by means of the arrangement, the convenience during connector installation and the stability after the connector and the chain link are connected are effectively improved.

Description

Technical Field

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

[0002] As we all know, roller chain is a type of chain drive used to transmit mechanical power. It is widely used in household, industrial and agricultural machinery, including conveyors, plotters, printing presses, cars, motorcycles, and bicycles. It is composed of a series of short cylindrical rollers linked together and driven by a gear called a sprocket. It is a simple, reliable and efficient power transmission device.

[0003] When in use, the roller chain needs to be connected end to end to form a closed ring chain. When the number of chain links is an even number, the chain links are connected end to end through a combination of inner and outer chain links. When the number of chain links is an odd number, the chain links are both inner or outer chain links, and thus cannot be directly connected. In this case, a transition joint is required to connect the ends. When connecting the ends of the chain links with the joint in the prior art, it is necessary to first insert a rod through the through holes of the chain links and the joint, and then insert a metal cotter pin into one side of the rod to ensure that the joint will not detach from the chain links. Since the cotter pin has a relatively small load-bearing capacity and is easily corroded, it takes relatively more time to install, so that the convenience of the joint installation and the stability of the joint after being connected to the chain links still need to be improved. To this end, a roller chain joint assembly is proposed. Utility Model Content

[0004] The utility model aims to provide a roller chain joint assembly which is easy to install.

[0005] The technical solution adopted by the utility model to solve the above problems is: a roller chain joint assembly, comprising: a joint body and a limiting mechanism;

[0006] A through slot is provided inside the joint body, a plug rod is inserted into the through slot, and a ring block is fixedly sleeved on the plug rod;

[0007] The limiting mechanism includes an empty groove and a threaded groove respectively opened inside the insertion rod, one side of the threaded groove is connected to the empty groove, the inner side wall of the threaded groove is threadedly connected with a threaded rod, one end of the threaded rod is fixedly connected with a connecting rod, one end of the connecting rod extends to the inside of the empty groove and is fixedly connected with an arc block, the outer side of the arc block is tightly attached to a movable stopper, the movable stopper is movably connected inside the empty groove, and one side of the movable stopper extends to the outside of the insertion rod.

[0008] Through the above technical solution, after the joint body is fitted on the head and tail links of the roller chain, the joint body can be initially positioned on the head and tail links by inserting the rod through the through slot; in addition, by tightening the threaded rod, the connecting rod can be driven to move deeper into the empty slot, so that the arc block can squeeze the two movable blocks at the same time under the action of the connecting rod, and then one side of the two movable blocks can be squeezed to the outside of the rod, so that after the rod passes through the through slot, it will not detach from the inside of the through slot under the action of the movable block and the annular block, so that the joint body can be firmly connected to the head and tail links.

[0009] Preferably, a sliding groove is provided on the inner side wall of the empty groove, a sliding block is slidably connected to the inner side wall of the sliding groove, and one side of the sliding block is fixedly connected to a movable stopper.

[0010] Through the above technical solution, the movable stopper can be kept stable when moving, and the movable stopper will not fall out of the empty slot.

[0011] Preferably, the inner side wall of the slide groove is fixedly connected with a support block, both sides of the support block are fixedly connected with elastic hoses, and one end of the elastic hose is fixedly connected with the slide block.

[0012] Through the above technical solution, when the arc block is away from the two movable blocks, the sliding block can drive the movable blocks to move into the empty groove under the resetting action of the elastic hose.

[0013] Preferably, the elastic hose is a rubber elastic hose.

[0014] Through the above technical solution, the restoring force of the elastic hose can be improved.

[0015] Preferably, one end of the threaded rod away from the connecting rod is fixedly connected with a protrusion.

[0016] The above technical solution can facilitate the screwing of the threaded rod.

[0017] Preferably, a slot is provided on one side of the protrusion.

[0018] Through the above technical solution, it is possible to easily insert the wrench into the protrusion to operate the threaded rod.

[0019] In summary, the present application includes at least one of the following beneficial effects:

[0020] The roller chain joint assembly is provided with a limiting mechanism on the joint body, so that after the insertion rod passes through the through slot, the connecting rod can be driven to move by tightening the threaded rod, so that the arc block can squeeze the two movable blocks out of the empty slot at the same time, and the insertion rod will not fall out of the through slot under the action of the annular block and the movable block; through the above settings, the convenience of joint installation and the stability of the joint after being connected to the chain link are effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an embodiment of the roller chain joint assembly.

[0022] Figure 2 It is a structural schematic diagram of the inserted rod and the empty slot in the embodiment of the roller chain joint assembly.

[0023] Figure 3 It is an enlarged schematic diagram of area A of the schematic diagram of the inserted rod and empty slot structure in the embodiment of the roller chain joint assembly.

[0024] Figure 4 It is a structural schematic diagram of the limiting mechanism in the embodiment of the roller chain joint assembly.

[0025] In the figure: 1, connector body; 10, through groove; 11, plug rod; 12, annular block; 2, limiting mechanism; 20, empty groove; 21, threaded groove; 22, threaded rod; 23, connecting rod; 24, arc block; 25, support block; 26, movable stopper; 27, slide groove; 28, slider; 29, elastic hose; 201, protrusion; 202, slot. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1-Figure 4 This embodiment provides a roller chain joint assembly, including: a joint body 1 and a limiting mechanism 2.

[0028] In one embodiment, in order to enable the joint body 1 to be initially positioned on the head and tail links of the roller chain after being fitted onto the head and tail links by inserting the insert rod 11 through the through slot 10, a through slot 10 is opened inside the joint body 1, the insert rod 11 is inserted into the through slot 10, and an annular block 12 is fixedly mounted on the insert rod 11.

[0029] In one embodiment, in order to drive the connecting rod 23 to move deeper into the empty slot 20 by tightening the threaded rod 22, the arc block 24 can squeeze the two movable blocks 26 at the same time under the action of the connecting rod 23, so that one side of the two movable blocks 26 can be squeezed out of the insertion rod 11, so that the insertion rod 11 will not be separated from the inside of the through slot 10 under the action of the movable block 26 and the annular block 12 after passing through the through slot 10, so that the joint body 1 can be firmly connected with the head and tail chain links; the limiter The structure 2 includes an empty groove 20 and a threaded groove 21 respectively provided inside the insertion rod 11. One side of the threaded groove 21 is connected to the empty groove 20. The inner side wall of the threaded groove 21 is threadedly connected with a threaded rod 22. One end of the threaded rod 22 is fixedly connected with a connecting rod 23. One end of the connecting rod 23 extends to the inside of the empty groove 20 and is fixedly connected with an arc block 24. The outer side of the arc block 24 is tightly attached with a movable stopper 26. The movable stopper 26 is movably connected inside the empty groove 20. One side of the movable stopper 26 extends to the outside of the insertion rod 11.

[0030] In one embodiment, in order to enable the movable stopper 26 to remain stable during movement and to prevent the movable stopper 26 from detaching from the slot 20, a slide groove 27 is provided on the inner wall of the slot 20, and a slider 28 is slidably connected to the inner wall of the slide groove 27, and one side of the slider 28 is fixedly connected to the movable stopper 26.

[0031] In one embodiment, in order for the slider 28 to drive the movable block 26 to move into the empty groove 20 under the resetting action of the elastic hose 29 when the arc block 24 is away from the two movable blocks 26, the inner wall of the slide groove 27 is fixedly connected with a support block 25, and both sides of the support block 25 are fixedly connected with elastic hoses 29, and one end of the elastic hose 29 is fixedly connected to the slider 28; in order to enhance the resetting force of the elastic hose 29, the elastic hose 29 is a rubber elastic hose 29.

[0032] In one embodiment, in order to facilitate the twisting of the threaded rod 22, a protrusion 201 is fixedly connected to one end of the threaded rod 22 away from the connecting rod 23; in order to facilitate the insertion of a wrench into the protrusion 201 to operate the threaded rod 22, a slot 202 is opened on one side of the protrusion 201.

[0033] Working principle: When in use, the joint body 1 is first fitted on the head and tail links of the roller chain, and then the joint body 1 is initially positioned on the head and tail links by passing the insertion rod 11 through the through groove 10, and the connecting rod 23 can be driven to move deeper into the empty groove 20 by tightening the threaded rod 22, so that the arc block 24 can squeeze the two movable blocks 26 at the same time under the action of the connecting rod 23, so that one side of the two movable blocks 26 can be squeezed to the outside of the insertion rod 11, so that after the insertion rod 11 passes through the through groove 10, it will not be separated from the inside of the through groove 10 under the action of the movable block 26 and the annular block 12, so that the joint body 1 can be firmly connected with the head and tail links; in addition, the arc block 24 can be driven away from the two movable blocks 26 by loosening the threaded rod 22, so that the two movable blocks 26 can be moved into the empty groove 20, which makes it easy to pull the insertion rod 11 out of the through groove 10, so that the joint body 1 can be removed from the head and tail links.

[0034] 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 joint assembly, characterized in that: include: A joint body (1) and a limiting mechanism (2); A through slot (10) is provided inside the joint body (1), a plug rod (11) is inserted into the through slot (10), and a ring block (12) is fixedly sleeved on the plug rod (11); The limiting mechanism (2) comprises an empty groove (20) and a threaded groove (21) respectively provided inside the insertion rod (11); one side of the threaded groove (21) is connected to the empty groove (20); the inner side wall of the threaded groove (21) is threadedly connected to a threaded rod (22); one end of the threaded rod (22) is fixedly connected to a connecting rod (23); one end of the connecting rod (23) extends to the inside of the empty groove (20) and is fixedly connected to an arc block (24); the outer side of the arc block (24) is tightly attached to a movable stopper (26); the movable stopper (26) is movably connected to the inside of the empty groove (20); one side of the movable stopper (26) extends to the outside of the insertion rod (11).

2. The roller chain joint assembly according to claim 1, characterized in that: The inner side wall of the empty slot (20) is provided with a sliding slot (27), the inner side wall of the sliding slot (27) is slidably connected with a sliding block (28), and one side of the sliding block (28) is fixedly connected to a movable stopper (26).

3. The roller chain joint assembly according to claim 2, characterized in that: The inner side wall of the slide groove (27) is fixedly connected to a support block (25), both sides of the support block (25) are fixedly connected to elastic hoses (29), and one end of the elastic hose (29) is fixedly connected to a slide block (28).

4. The roller chain joint assembly according to claim 3, characterized in that: The elastic hose (29) is a rubber elastic hose.

5. The roller chain joint assembly according to claim 1, characterized in that: One end of the threaded rod (22) away from the connecting rod (23) is fixedly connected with a protrusion (201).

6. The roller chain joint assembly according to claim 5, characterized in that: A slot (202) is provided on one side of the protrusion (201).

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