Anti-loosening structure of chain

Abstract

According to the technical scheme, the anti-loosening structure of the chain is characterized in that the anti-loosening structure of the chain comprises a containing plate, two mounting holes are formed in one side of the containing plate, and mounting rods are rotationally mounted in the mounting holes; the bearing is fixedly connected to the outer circle wall face of the mounting rod, the outer portion of an outer ring of the bearing is fixedly sleeved with first gears, and the outer portions of the two first gears are meshed with a chain; and the anti-loosening assembly is arranged on one side of the containing plate and used for preventing the chain from loosening, by arranging first gears, after the two first gears drive the chain to work for a long time, by arranging a sliding block, after the elastic force of a spring drives the sliding block to move, a second gear can be engaged with the chain all the time, and therefore the chain can be prevented from loosening. And meanwhile, the chain can be extruded, so that the phenomenon that the chain is loosened and disengaged after being used for a long time is avoided, and the anti-loosening effect of the chain is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of chain anti-loosening, in particular to an anti-loosening structure of a chain. Background Art

[0002] Chains are generally metal links or rings, mostly used for mechanical transmission and traction. Chain-shaped objects used to block traffic channels (such as in streets, rivers or harbor entrances), chains used for mechanical transmission, among similar products, according to the basic structure of the chain, that is, according to the shape of the components, the parts and parts that mesh with the chain, the size ratio between the parts, etc., the chain product series belongs to. There are many types of chains, but their basic structures are only the following, and the others are deformations of these types. We can see from the above chain structures that most chains are composed of chain plates, chain pins, bushings and other components.

[0003] For example, the Chinese patent with publication number CN214331380U proposes a tensioning structure for preventing a chain from loosening, wherein the component includes a frame, a large gear shaft is arranged inside the frame, a motor is fixedly arranged on one side of the frame, the output shaft of the motor is fixedly arranged on the motor shaft, the output shaft of the motor shaft is fixedly arranged on the large gear, a fixed bracket is arranged inside the frame, a tensioning cylinder is fixedly arranged on one side of the fixed bracket, a rotating bracket is fixedly arranged on the output shaft of the tensioning cylinder, a shaft body is fixedly arranged on the output shaft of the tensioning cylinder, and a movable pinion fixing plate is fixedly arranged on one end of the shaft body. The tensioning structure for preventing the chain from loosening is provided with a fixed pinion and a movable pinion. The setting of the fixed pinion is convenient for changing the direction of the chain assembly, and the chain rotates around the pinion. The setting of the movable pinion is convenient for tightening the chain assembly at that location to prevent the chain from loosening. The tensioning structure is simple to use and easy to operate, which improves efficiency and reduces costs. However, in the actual application of this solution, the tensioning cylinder needs to be regularly maintained after long-term use, thereby increasing the subsequent maintenance cost. In order to solve the above problem, we have proposed a chain anti-loosening structure. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides an anti-loosening structure of a chain, which solves the problems mentioned in the background technology.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A chain anti-loosening structure comprises: a placement plate, one side of which is provided with two mounting holes, inside which mounting rods are rotatably mounted; the outsides of two first gears are meshed with chains; and an anti-loosening component, which is arranged on one side of the placement plate and is used to prevent the chain from loosening.

[0007] By adopting the above technical solution and providing an anti-loosening component, the anti-loosening component can prevent the chain from loosening after long-term use, thereby preventing the chain from accidentally falling off from the outside of the first gear.

[0008] Preferably, the anti-loosening assembly includes: two rotating rods, both of which are arranged on one side of the placement plate, the outer cylindrical wall of the rotating rod is fixedly connected to a bearing, and the external fixed sleeve of the outer ring of the bearing is provided with a second gear; two sliding grooves, both of which are opened on one side of the placement plate; and an adjusting member, which is arranged inside the sliding groove and is used to adjust the position of the second gear.

[0009] By adopting the above technical solution and providing an adjusting member, the adjusting member can adjust the position of the second gear, so that the second gear can move on one side of the placement plate.

[0010] Preferably, the adjusting member includes: a sliding block, the sliding block is movably mounted inside the sliding groove, a rotating hole is opened on one side of the sliding block, one end of the rotating rod is fixedly connected to an adjusting rod, and the adjusting rod and the rotating hole are rotatably installed together; a spring, the spring is arranged inside the sliding groove, and one end of the spring is in contact with one side of the sliding block.

[0011] By adopting the above technical solution, by setting the first gear, when the two first gears drive the chain to work for a long time, by setting the sliding block, when the elastic force of the spring drives the sliding block to move, the second gear can always be engaged with the chain, and the chain can be squeezed at the same time, so as to avoid the chain from loosening and de-chaining after long-term use, thereby achieving the effect of preventing the chain from loosening.

[0012] Preferably, both left and right sides of the sliding groove are provided with limiting grooves, both left and right sides of the sliding block are fixedly connected with limiting blocks, and the limiting blocks are movably sleeved with the limiting grooves.

[0013] By adopting the above technical solution and setting the limit block, the limit block and the limit groove are movably mounted together, so that the limit block can limit the sliding block, thereby preventing the sliding block from moving out of the sliding groove.

[0014] Preferably, a positioning rod is fixedly connected to one side of the sliding block, and the positioning rod is movably sleeved with the spring.

[0015] By adopting the above technical solution and providing a positioning rod, the positioning rod and the spring are movably sleeved together, so that the positioning rod can position the spring.

[0016] Preferably, a mounting groove is provided on one side inside the sliding groove, a connecting block is connected to the internal thread of the mounting groove, and one side of the connecting block is fixedly connected to one end of the spring.

[0017] By adopting the above technical solution, a connecting block is set up. Since the connecting block is threadedly connected to the inside of the installation groove, the staff can replace the spring after taking the connecting block out from the inside of the installation groove, thereby avoiding the second gear being unable to mesh with the spring due to weakening of the elastic force after long-term use, thereby reducing the subsequent maintenance costs.

[0018] In summary, the utility model mainly has the following beneficial effects:

[0019] By setting the first gear, when the two first gears drive the chain to work for a long time, by setting the sliding block, when the elastic force of the spring drives the sliding block to move, the second gear can always be engaged with the chain, and the chain can be squeezed at the same time, thereby preventing the chain from loosening and delinking after long-term use, thereby achieving the effect of anti-loosening of the chain; by setting the limit block, after the limit block and the limit groove are movably mounted together, the limit block can limit the sliding block, thereby preventing the sliding block from moving out of the sliding groove; by setting the connecting block, since the connecting block is threadedly connected to the inside of the installation groove, the staff can replace the spring after taking the connecting block out of the inside of the installation groove, thereby preventing the second gear from being unable to mesh with the chain due to the weakening of the elastic force after long-term use, thereby reducing the later maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the installation rod structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the placement plate structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the sliding block structure of the utility model.

[0024] Figure numerals: 1. placement plate; 2. mounting hole; 3. mounting rod; 4. bearing; 5. first gear; 6. chain; 7. second gear; 8. sliding groove; 9. sliding block; 10. rotating hole; 11. adjusting rod; 12. spring; 13. limit groove; 14. limit block; 15. positioning rod; 16. mounting groove; 17. connecting block; 18. rotating rod. DETAILED DESCRIPTION

[0025] 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.

[0026] refer to Figure 1 , Figure 2 and Figure 3 , a chain anti-loosening structure, including a placement plate 1, one side of the placement plate 1 is provided with two mounting holes 2, a mounting rod 3 is rotatably installed inside the mounting hole 2, the outer cylindrical wall of the mounting rod 3 is fixedly connected with a first gear 5, the outsides of the two first gears 5 are meshed with chains 6, one side of the placement plate 1 is provided with an anti-loosening component for preventing the chain 6 from loosening, the anti-loosening component includes two rotating rods 18, the two rotating rods 18 are both provided on one side of the placement plate 1, the outer cylindrical wall of the rotating rod 18 is fixedly connected with a bearing 4, the outer fixed sleeve of the outer ring of the bearing 4 is provided with a second gear 7, one side of the placement plate 1 is provided with two sliding grooves 8, the sliding groove 8 is provided with an adjusting piece inside for adjusting the position of the second gear 7.

[0027] refer to Figure 2 , Figure 3 and Figure 4 The adjusting member includes a sliding block 9, which is movably sleeved inside the sliding groove 8. A rotating hole 10 is opened on one side of the sliding block 9. An adjusting rod 11 is fixedly connected to one end of a rotating rod 18. The adjusting rod 11 is rotatably installed together with the rotating hole 10. A spring 12 is arranged inside the sliding groove 8. One end of the spring 12 is fitted together with one side of the sliding block 9. By setting the first gear 5, when the two first gears 5 drive the chain 6 to work for a long time, by setting the sliding block 9, when the elastic force of the spring 12 drives the sliding block 9 to move, the second gear 7 can always be meshed with the chain 6, and the chain 6 can be squeezed at the same time, thereby avoiding the chain. 6 becomes loose and de-chains after long-term use, so as to achieve the effect of preventing the chain 6 from loosening. Limiting grooves 13 are provided on the left and right sides of the sliding groove 8, and limiting blocks 14 are fixedly connected to the left and right sides of the sliding block 9. The limiting blocks 14 are movably sleeved with the limiting grooves 13. A positioning rod 15 is fixedly connected to one side of the sliding block 9, and the positioning rod 15 is movably sleeved with the spring 12. A mounting groove 16 is provided on one side of the sliding groove 8. The internal thread of the mounting groove 16 is connected with a connecting block 17. The inner circular wall surface of the mounting groove 16 and the outer circular wall surface of the connecting block 17 are both provided with threads, and one side of the connecting block 17 is fixedly connected with one end of the spring 12.

[0028] Working principle: Please refer to Figure 1-Figure 4As shown, during use, by setting the first gear 5, after the two first gears 5 drive the chain 6 to work for a long time, by setting the sliding block 9, when the elastic force of the spring 12 drives the sliding block 9 to move, the second gear 7 can always be meshed with the chain 6, and the chain 6 can be squeezed at the same time, so as to prevent the chain 6 from loosening and de-chaining after long-term use, thereby achieving the effect of preventing the chain 6 from loosening, and by setting the limiting block 14, since the limiting block 14 and the limiting groove 13 are movably sleeved together, the limiting block 14 can limit the sliding block 9, thereby preventing the sliding block 9 from moving out of the sliding groove 8, and by setting the connecting block 17, since the connecting block 17 is threadedly connected to the inside of the mounting groove 16, the staff can replace the spring 12 after taking the connecting block 17 out of the inside of the mounting groove 16, thereby preventing the spring 12 from being unable to mesh with the second gear 7 due to the weakening of the elastic force after long-term use, thereby reducing the later maintenance cost.

[0029] Although the 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 chain anti-loosening structure, characterized in that: include: A placement plate (1), wherein two mounting holes (2) are provided on one side of the placement plate (1), and a mounting rod (3) is rotatably mounted inside the mounting hole (2); A first gear (5), the first gear (5) is fixedly connected to the outer circumferential wall surface of the mounting rod (3), and a chain (6) is meshed on the outside of two of the first gears (5); An anti-loosening component is arranged on one side of the placement plate (1) and is used to prevent the chain (6) from loosening.

2. The chain anti-loosening structure according to claim 1, characterized in that: The anti-loosening component comprises: Two rotating rods (18), both of which are arranged on one side of the placement plate (1), the outer circumferential wall surface of the rotating rod (18) is fixedly connected to a bearing (4), the outer fixed sleeve of the outer ring of the bearing (4) is provided with a second gear (7), and the second gear (7) is meshed with the chain (6); Two sliding grooves (8), both of which are arranged on one side of the placement plate (1); An adjusting member, which is arranged inside the sliding groove (8) and is used to adjust the position of the second gear (7).

3. The chain anti-loosening structure according to claim 2, characterized in that: The adjusting member comprises: A sliding block (9), the sliding block (9) being movably sleeved inside the sliding groove (8), a rotating hole (10) being provided on one side of the sliding block (9), an adjusting rod (11) being fixedly connected to one end of the rotating rod (18), and the adjusting rod (11) being rotatably mounted together with the rotating hole (10); A spring (12), wherein the spring (12) is arranged inside the sliding groove (8), and one end of the spring (12) is in contact with one side of the sliding block (9).

4. The chain anti-loosening structure according to claim 3, characterized in that: The left and right sides of the sliding groove (8) are both provided with limiting grooves (13), the left and right sides of the sliding block (9) are both fixedly connected with limiting blocks (14), and the limiting blocks (14) are movably sleeved together with the limiting grooves (13).

5. The chain anti-loosening structure according to claim 3, characterized in that: A positioning rod (15) is fixedly connected to one side of the sliding block (9), and the positioning rod (15) and the spring (12) are movably sleeved together.

6. The chain anti-loosening structure according to claim 5, characterized in that: A mounting groove (16) is provided on one side inside the sliding groove (8), and a connecting block (17) is connected to the inner thread of the mounting groove (16), and one side of the connecting block (17) is fixedly connected to one end of the spring (12).

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