Connecting ring with damping function

Abstract

The utility model provides a connecting ring with a damping function, which belongs to the technical field of mechanical connecting pieces and comprises a first connecting ring, a first connecting plate, a second connecting ring and a second connecting plate. The locking structure comprises a fixing groove formed in the outer side of the first connecting plate, a housing installed in one side of the second connecting plate, a first limiting groove formed in one side of the top end of the housing, a second limiting groove formed in the other side of the top end of the housing and a moving assembly arranged in the housing. According to the angle locking device, the pull rod is placed in the first limiting groove by pulling the pull handle, the fixing pin is inserted into the fixing groove, and the second connecting plate and the first connecting plate are locked and fixed, so that the angle locking function of the angle locking device is achieved, the angle locking device is allowed to be locked at a specific angle or position, and the angle locking device is prevented from accidentally rotating or loosening; the safety of hoisting operation is improved, and the stability of the device on a fixed position is ensured.

Description

Technical Field

[0001] This utility model relates to the field of mechanical connector technology, and more specifically, to a linkage with shock absorption function. Background Technology

[0002] A swivel ring, also known as a lifting figure-eight ring, swivel ring, connecting ring, or symmetrical swivel ring, is a multi-functional fastener. Because it can rotate 360° or 180° during use, it is convenient for lifting operations at different angles. Therefore, it is widely used in the connection of lifting chains, especially in industries such as shipbuilding, vehicles, construction, and machinery.

[0003] A search revealed Chinese patent application number 202321644089.6, which discloses a lifting rotating ring, including a pull ring, a bolt, and a rotating sleeve. The rotating sleeve's vertical projection is a hollow circle. The lower end of the pull ring passes through both ends of the rotating sleeve's axis and is connected to the side end shaft of the rotating sleeve. The pull ring and the rotating sleeve are detachably connected. The lower end of the bolt passes through the interior of the rotating sleeve and rotates relative to the rotating sleeve. The bolt and the rotating sleeve are connected by an interference fit. The bolt is connected to the pull ring through the rotating sleeve, and the interference fit between the bolt and the rotating sleeve allows the pull ring to rotate relative to the bolt through the rotating sleeve, reducing damage to the direct connection between the bolt and the pull ring and increasing the bolt's service life.

[0004] The above patent still has the following shortcomings: (1) It is not convenient to lock and fix the position of the lifting ring. The existing device can rotate freely during use, which may cause the device to rotate unexpectedly due to external force when lifting or moving heavy objects, resulting in the loss of control of the heavy objects and increasing the risk of accidents. At the same time, it makes it difficult to accurately control the position of the heavy objects, because the rotation of the device may cause the heavy objects to deviate from the predetermined position.

[0005] (2) The device is prone to vibration. When the device is suspending an object, it is easily subjected to impact or sudden acceleration or deceleration, which can lead to increased wear of the connecting bolts and shorten the service life of the equipment. At the same time, vibration is often accompanied by noise, which causes noise pollution to the working environment.

[0006] Therefore, a shock-absorbing chain is urgently needed to solve the above problems. Utility Model Content

[0007] The purpose of this utility model is to address the shortcomings of existing devices that make it inconvenient to lock and fix the position of the lifting ring. Existing devices can rotate freely during use, which may cause the device to rotate unexpectedly due to external forces when lifting or moving heavy objects, resulting in loss of control of the heavy objects and increasing the risk of accidents. At the same time, it makes it difficult to precisely control the position of heavy objects, because the rotation of the device may cause the heavy objects to deviate from the predetermined position.

[0008] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0009] A shock-absorbing chain includes a first connecting ring and further includes:

[0010] A first connecting plate is fixed to the top of the first connecting ring, and a connecting bolt is inserted into the bottom of the first connecting plate. A second rubber pad is provided between the first connecting plate and the connecting bolt.

[0011] The second connecting plate is sleeved on the outside of the connecting bolt, and the top of the second connecting plate is provided with a nut that is threaded to the connecting bolt. A cotter pin is inserted inside the nut. A first rubber gasket is provided between the nut and the second connecting plate. A second connecting ring is fixed to the top of the second connecting plate.

[0012] A vibration damping structure is provided between the second connecting plate and the first connecting plate to reduce the vibration between the second connecting plate and the first connecting plate;

[0013] A locking structure is provided on one side of the second connecting plate. The locking structure includes a fixing groove on the outside of the first connecting plate, a cover installed inside one side of the second connecting plate, a first limiting groove on one side of the top of the cover, a second limiting groove on the other side of the top of the cover, and a moving component provided inside the cover.

[0014] As a preferred technical solution of this application, the movable component includes a pull rod that slides inside the housing, a fixing pin fixed to the bottom end of the pull rod, a compression spring installed between the fixing pin and the housing, and a handle fixed to one side of the pull rod.

[0015] As a preferred technical solution of this application, the front cross-section of the pull rod is designed with an "L" shape, and the fixing grooves are evenly distributed on the outer side of the first connecting plate.

[0016] As a preferred technical solution of this application, the pull rod forms a sliding structure with the first limiting groove and the second limiting groove, and the pull rod forms a rotating structure with the cover.

[0017] As a preferred technical solution of this application, the shock absorption structure includes a shock absorption spring disposed between the first connecting plate and the second connecting plate, an inner rubber pad fixed at both ends of the shock absorption spring, a steel sheet fixed at the top of the inner rubber pad, a sound insulation friction pad fixed at the top of the steel sheet, and a rubber sleeve sleeved on the outside of the shock absorption spring and connected to the steel sheet.

[0018] As a preferred technical solution of this application, the sound-insulating friction pad and the steel sheet are respectively provided in two sets, and the two sets of sound-insulating friction pads and steel sheets are symmetrically distributed on the horizontal center line of the rubber sleeve.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] In the scheme of this application:

[0021] 1. By pulling the handle, the pull rod is inserted into the first limiting groove, and the fixing pin is inserted into the fixing groove, locking the second connecting plate and the first connecting plate together. This realizes the angle locking function of the device, allowing the device to be locked at a specific angle or position to prevent accidental rotation or loosening, improve the safety of hoisting operations, and ensure the stability of the device in a fixed position.

[0022] 2. The vibration between the second connecting plate and the first connecting plate is buffered by the expansion and contraction deformation of the shock-absorbing spring and the rubber sleeve. At the same time, the sound-insulating friction pad makes it less likely for the steel sheet to generate friction noise with the second and first connecting plates. This realizes the shock absorption and buffering function of the device, absorbs and disperses the vibration energy generated by the rotating lifting ring during operation, thereby reducing the amplitude of vibration, making the lifting ring and its connecting parts more stable, and also helps to reduce the noise generated by the rotating lifting ring during operation. Attached Figure Description

[0023] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0024] Figure 2 This is the second schematic diagram of the structure of this utility model;

[0025] Figure 3 A three-dimensional structural diagram of the locking structure provided by this utility model;

[0026] Figure 4 A three-dimensional cross-sectional structural diagram of the locking structure provided by this utility model;

[0027] Figure 5 A three-dimensional cross-sectional structural diagram of the shock-absorbing structure provided by this utility model.

[0028] The diagram shows: 1. First connecting ring; 2. First connecting plate; 3. Vibration damping structure; 301. Sound insulation friction pad; 302. Steel sheet; 303. Rubber sleeve; 304. Vibration damping spring; 305. Inner rubber pad; 4. Nut; 5. Cotter pin; 6. Locking structure; 601. Fixing groove; 602. First limiting groove; 603. Second limiting groove; 604. Cover; 605. Compression spring; 606. Fixing pin; 607. Pull rod; 608. Pull handle; 7. Second connecting ring; 8. Connecting bolt; 9. Second connecting plate; 10. First rubber pad; 11. Second rubber pad. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0030] like Figure 1-5 As shown, the linkage with shock absorption function proposed in this embodiment includes a first connecting ring 1, and further includes:

[0031] The first connecting plate 2 is fixed to the top of the first connecting ring 1, and a connecting bolt 8 is inserted into the bottom of the first connecting plate 2. A second rubber pad 11 is provided between the first connecting plate 2 and the connecting bolt 8.

[0032] The second connecting plate 9 is sleeved on the outside of the connecting bolt 8, and the top of the second connecting plate 9 is provided with a nut 4 that is threadedly connected to the connecting bolt 8, and a cotter pin 5 is inserted inside the nut 4. A first rubber pad 10 is provided between the nut 4 and the second connecting plate 9, and a second connecting ring 7 is fixed to the top of the second connecting plate 9.

[0033] The vibration damping structure 3 is disposed between the second connecting plate 9 and the first connecting plate 2 to reduce the vibration between the second connecting plate 9 and the first connecting plate 2;

[0034] The locking structure 6 is provided on one side of the second connecting plate 9. The locking structure 6 includes a fixing groove 601 opened on the outside of the first connecting plate 2, a cover 604 installed inside one side of the second connecting plate 9, a first limiting groove 602 opened on one side of the top of the cover 604, a second limiting groove 603 opened on the other side of the top of the cover 604, and a moving component provided inside the cover 604.

[0035] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, in a preferred embodiment, based on the above method, the moving component further includes a pull rod 607 sliding inside the housing 604, a fixing pin 606 fixed to the bottom end of the pull rod 607, a compression spring 605 installed between the fixing pin 606 and the housing 604, and a handle 608 fixed to one side of the pull rod 607. The pull rod 607 has an "L"-shaped cross-section. The fixing grooves 601 are evenly distributed on the outer side of the first connecting plate 2. The pull rod 607 forms a sliding structure with the first limiting groove 602 and the second limiting groove 603. The pull rod 607 forms a rotating structure with the housing 604. By pulling the handle 608, the pull rod 607 can move... The movable pull rod 607 is inside the cover 604. Then, the pull rod 607 is rotated to put it into the second limiting groove 603. The pull rod 607 is stored so that the second connecting plate 9 and the first connecting plate 2 can rotate freely. The pull handle 608 is manually pulled to put the pull rod 607 into the first limiting groove 602. The compression spring 605 pushes the fixing pin 606 into the fixing groove 601, locking the second connecting plate 9 and the first connecting plate 2. The compression spring 605 pushes the fixing pin 606 and the pull rod 607 downward, so that the pull rod 607 is not easily removed from the first limiting groove 602 or the second limiting groove 603 by external force.

[0036] like Figure 1 , Figure 2 and Figure 5 As shown, in a preferred embodiment, based on the above method, the damping structure 3 further includes a damping spring 304 disposed between the first connecting plate 2 and the second connecting plate 9, inner rubber pads 305 fixed at both ends of the damping spring 304, a steel plate 302 fixed at the top of the inner rubber pad 305, a sound-insulating friction pad 301 fixed at the top of the steel plate 302, and a rubber sleeve 303 sleeved on the outside of the damping spring 304 and connected to the steel plate 302. Two sets of sound-insulating friction pads 301 and two sets of steel plates 302 are respectively provided. 01 and steel plate 302 are symmetrically distributed on the horizontal center line of rubber sleeve 303. Vibration is transmitted to damping spring 304 and rubber sleeve 303 through sound insulation friction pad 301 and steel plate 302. The expansion and contraction of damping spring 304 and rubber sleeve 303 buffers the vibration between second connecting plate 9 and first connecting plate 2. Steel plate 302 helps to evenly distribute the impact of vibration to damping spring 304 and rubber sleeve 303. At the same time, sound insulation friction pad 301 makes it less likely for steel plate 302 to generate friction noise with second connecting plate 9 and first connecting plate 2.

[0037] Specifically, when this shock-absorbing chain is in use: it is connected to the second connecting plate 9 by connecting bolts 8 and nuts 4, and cotter pins 5 are inserted inside nuts 4 and connecting bolts 8 to prevent them from loosening. The shock-absorbing structure 3 buffers the vibration of the first connecting plate 2 and the second connecting plate 9. At the same time, the second rubber pad 11 and the first rubber pad 10 reduce the vibration of nuts 4 and connecting bolts 8. The locking structure 6 can fix the relative position between the second connecting plate 9 and the first connecting plate 2, improving the safety of hoisting operations.

[0038] Pulling the handle 608 moves the lever 607 inside the cover 604. Then, rotating the lever 607 puts it into the second limiting groove 603, storing the lever 607 so that the second connecting plate 9 and the first connecting plate 2 can rotate freely. Manually pulling the handle 608 puts the lever 607 into the first limiting groove 602, causing the compression spring 605 to push the fixing pin 606 into the fixing groove 601, locking the second connecting plate 9 and the first connecting plate 2. The compressed spring 605 pushes the fixing pin 606 and the lever 607 downward, making it difficult for the lever 607 to leave the first limiting groove 602 or the second limiting groove 603 due to external force.

[0039] When the device vibrates, the vibration is transmitted to the damping spring 304 and rubber sleeve 303 through the sound-insulating friction pad 301 and steel sheet 302. The damping spring 304 and rubber sleeve 303 expand and contract to buffer the vibration between the second connecting plate 9 and the first connecting plate 2. The steel sheet 302 helps to evenly distribute the impact of the vibration to the damping spring 304 and rubber sleeve 303. At the same time, the sound-insulating friction pad 301 makes it less likely for the steel sheet 302 to generate friction noise with the second connecting plate 9 and the first connecting plate 2.

[0040] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present utility model.

Claims

1. A series of interlocking rings with shock absorption function, comprising a first connecting ring (1), characterized in that, Also includes: The first connecting plate (2) is fixed to the top of the first connecting ring (1), and a connecting bolt (8) is inserted inside the bottom end of the first connecting plate (2). A second rubber pad (11) is provided between the first connecting plate (2) and the connecting bolt (8). The second connecting plate (9) is sleeved on the outside of the connecting bolt (8), and the top of the second connecting plate (9) is provided with a nut (4) that is threadedly connected to the connecting bolt (8), and a cotter pin (5) is inserted inside the nut (4). A first rubber pad (10) is provided between the nut (4) and the second connecting plate (9), and a second connecting ring (7) is fixed at the top of the second connecting plate (9). A shock-absorbing structure (3) is provided between the second connecting plate (9) and the first connecting plate (2) to reduce the vibration between the second connecting plate (9) and the first connecting plate (2); A locking structure (6) is provided on one side of the second connecting plate (9). The locking structure (6) includes a fixing groove (601) opened on the outside of the first connecting plate (2), a cover (604) installed inside one side of the second connecting plate (9), a first limiting groove (602) opened on one side of the top of the cover (604), a second limiting groove (603) opened on the other side of the top of the cover (604), and a moving component provided inside the cover (604).

2. The chain with shock absorption function according to claim 1, characterized in that, The movable component includes a pull rod (607) that slides inside the housing (604), a fixing pin (606) fixed to the bottom end of the pull rod (607), a compression spring (605) installed between the fixing pin (606) and the housing (604), and a handle (608) fixed to one side of the pull rod (607).

3. A chain with shock absorption function according to claim 2, characterized in that, The pull rod (607) has an "L" shaped cross-section when viewed from the front, and the fixing grooves (601) are evenly distributed on the outside of the first connecting plate (2).

4. A chain with shock absorption function according to claim 2, characterized in that, The pull rod (607) forms a sliding structure with the first limiting groove (602) and the second limiting groove (603), and the pull rod (607) forms a rotating structure with the cover (604).

5. A chain with shock absorption function according to claim 1, characterized in that, The shock-absorbing structure (3) includes a shock-absorbing spring (304) disposed between the first connecting plate (2) and the second connecting plate (9), an inner rubber pad (305) fixed at both ends of the shock-absorbing spring (304), a steel plate (302) fixed at the top of the inner rubber pad (305), a sound-insulating friction pad (301) fixed at the top of the steel plate (302), and a rubber sleeve (303) sleeved on the outside of the shock-absorbing spring (304) and connected to the steel plate (302).

6. A chain with shock absorption function according to claim 5, characterized in that, The sound-insulating friction pad (301) and the steel sheet (302) are respectively provided in two sets, and the two sets of sound-insulating friction pads (301) and steel sheets (302) are symmetrically distributed on the horizontal center line of the rubber sleeve (303).

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