Multilayer treatment tray for nephrology peritoneal dialysis dressing change

Abstract

The utility model discloses a multilayer treatment tray for peritoneal dialysis dressing of nephrology, including lower disc body, the upper surface swing joint of lower disc body has the upper disc body, the outer surface swing joint of first connecting rod has in the inside of upper disc body, the outer surface swing joint of second connecting rod has in the inside of lower disc body, the outer surface swing joint of third connecting rod has in the inside of lower disc body, the outer surface swing joint of first placing box has of third connecting rod, the outer surface swing joint of second placing box has of second connecting rod, the utility model relates to medical instrument technical field, the second sliding rod of this time push connection board surface connection in the groove of second placing box surface opening slides back, drives first baffle to move inwards, this time the third sliding rod of connecting first baffle moves in the groove of second baffle surface opening, under the movement of first baffle, the fourth sliding rod of second baffle surface moves in the groove of third baffle surface opening, this time realizes the movement of two baffle, and vice versa closes baffle.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a multi-layer treatment tray for peritoneal dialysis dressing change in nephrology. Background Technology

[0002] In nephrology clinical treatment, peritoneal dialysis is an important renal replacement therapy widely used for patients with end-stage renal disease. Peritoneal dialysis dressing changes are a crucial part of the treatment process, requiring medical staff to frequently use various medical devices, medications, and consumables. Hospital staff often use treatment trays to hold temporary supplies such as injection fluids before treatment. Currently, most treatment trays used clinically are single-layer trays or simply partitioned double-layer trays. With single-layer trays, sterile and non-sterile items are placed together before treatment, and contaminated items and infectious medical waste are not sorted and placed in the tray after treatment. Sharp instruments such as infusion needles are exposed in the tray, posing a potential threat to the safety of medical staff and patients.

[0003] In the prior art, such as the treatment tray with Chinese patent number CN215307780U, there is an upper tray body, a lower tray body, and a connector. The lower tray body has a recessed portion with a first position and a second position for placing the upper tray body. The connector is connected to both the upper and lower tray bodies, allowing the upper tray body to switch between the first and second positions within the recessed portion. By configuring the treatment tray with two layers (upper and lower tray bodies), sterile and non-sterile items can be placed separately, preventing contamination of sterile items. The recessed portion on the lower tray body facilitates carrying by medical personnel when the upper tray body is in the first position within the recessed portion.

[0004] However, while the aforementioned patents have the above-mentioned technical advantages, they also have disadvantages in the existing technology: traditional devices can be used to place sterile items in layers during use, but medical devices must be stored and used in a safe environment and isolated from other items to prevent cross-infection during use and storage. Secondly, traditional devices have layered baffles, but their efficiency is low and they are used in fewer layers, limiting the number of items that can be placed. Therefore, optimization is needed to address these issues. Utility Model Content

[0005] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is as follows: a multi-layer treatment tray for peritoneal dialysis dressing changes in nephrology, comprising a lower tray body, an upper tray body movably connected to the upper surface of the lower tray body, a first connecting rod movably connected to the outer surface of the inner side of the upper tray body, a second connecting rod movably connected to the outer surface of the inner side of the lower tray body, a third connecting rod movably connected to the outer surface of the inner side of the lower tray body, a first placement box movably connected to the outer surface of the third connecting rod, a second placement box movably connected to the outer surface of the second connecting rod, a fourth connecting rod movably connected to the outer surface of the second placement box, and a first sliding rod slidably connected to the inner surface of the fourth connecting rod. A connecting plate is fixedly connected to the outer surface of the first sliding rod, and a second sliding rod is fixedly connected to the outer surface of the connecting plate. The outer surface of the second sliding rod is slidably connected to the inner surface of the second placement box. When the upper plate is opened, the second placement box connected to the first connecting rod is moved. At this time, the first and second placement boxes are in an open state under the action of the first, second, third, and fourth connecting rods. Under the movement of the fourth connecting rod and the inertia of opening, the first sliding rod slides upward in the groove opened on the surface of the fourth connecting rod. At this time, the second sliding rod connected to the surface of the connecting plate is pushed to slide backward in the groove opened on the surface of the second placement box, causing the first baffle to move inward.

[0006] Preferably, a first baffle is fixedly connected to the outer surface of the second sliding rod, a third sliding rod is fixedly connected to the outer surface of the first baffle, a second baffle is slidably connected to the outer surface of the third sliding rod, a fourth sliding rod is fixedly connected to the outer surface of the second baffle, and a third baffle is slidably connected to the outer surface of the fourth sliding rod. The outer surface of the third baffle is fixedly connected to the outer surface of the inner side of the second placement box. At this time, the first and second placement boxes are in an open state under the action of the first, second, third, and fourth connecting rods. At this time, under the movement of the fourth connecting rod and the inertia of opening, the first sliding rod slides upward in the groove opened on the surface of the fourth connecting rod. At this time, the second sliding rod connected to the surface of the connecting plate is pushed to slide backward in the groove opened on the surface of the second placement box, causing the first baffle to move inward. At this time, the third sliding rod connected to the first baffle moves in the groove opened on the surface of the second baffle. Under the movement of the first baffle, the fourth sliding rod on the surface of the second baffle moves in the groove opened on the surface of the third baffle. At this time, the movement of the two baffles is realized, and conversely, the baffles are closed.

[0007] Preferably, a placement cavity is fixedly connected to the outer surface of the inner side of the lower plate, an arc-shaped baffle is slidably connected to the inner surface of the placement cavity, and a first pull plate is fixedly connected to the outer surface of the arc-shaped baffle. When the arc-shaped baffle on the left side of the placement cavity is to be opened, the first pull plate is pulled, and the arc-shaped baffle slides on the inner surface of the placement cavity.

[0008] Preferably, a first spring is fixedly connected to the outer surface of the arc-shaped baffle, and the outer surface of the first spring is fixedly connected to the inner surface of the placement cavity. When the first pull plate is pulled, the arc-shaped baffle slides on the inner surface of the placement cavity, compressing the first spring. After the item is taken out, the arc-shaped baffle automatically closes under the action of the first spring.

[0009] Preferably, a fourth baffle is slidably connected to the inner surface of the placement cavity, a second pull plate is fixedly connected to the outer surface of the fourth baffle, and a push rod is slidably connected to the inner surface of the fourth baffle. When the push rod is pressed, the connected adjusting rod begins to slide inward. Under the action of the arc set on the surface of the adjusting rod, a downward force is applied to the locking plate. At this time, the locking plate leaves the surface of the groove, and the fourth baffle is pushed to close under the thrust of the second spring.

[0010] Preferably, the inner surface of the fourth baffle is provided with a spring-loaded device, the inner surface of the spring-loaded device is fixedly connected to a fifth connecting rod, the inner surface of the fifth connecting rod is slidably connected to a sixth connecting rod, the outer surface of the fifth connecting rod is fixedly connected to a second spring, the outer surface of the sixth connecting rod is fixedly connected to a fixing plate, the outer surface of the fixing plate is fixedly connected to a clamping plate, the outer surface of the sixth connecting rod is fixedly connected to a fixing arc plate, the outer surface of the fixing arc plate is fixedly connected to a pushing circular plate, the outer surface of the pushing circular plate is fixedly connected to a sliding circular rod, the inner surface of the sliding circular rod is slidably connected to an adjusting circular rod, the outer surface of the sliding circular rod is slidably connected to the inner surface of the spring-loaded device, the outer surface of the right end of the adjusting circular rod is fixedly connected to a seventh connecting rod, and the outer surface of the right end of the adjusting circular rod is fixedly connected to a third spring. When the fourth baffle is opened, the second pull plate is pushed. At this time, the second pull plate slides on the inner surface of the placement cavity. When the second pull plate reaches the groove plate and contacts the sliding rod, the sliding rod is pushed to slide on the inner surface of the spring-loaded device. During the sliding, the sixth connecting rod connected to the sliding rod presses the second spring backward. The sixth connecting rod slides on the inner surface of the fifth connecting rod. When the locking plate moves to the groove on the surface of the spring-loaded device, the locking plate locks the spring-loaded device and fixes it. When the fourth baffle is to be closed, the push rod is pressed. At this time, the connected adjusting rod begins to slide inward. Under the action of the arc set on the surface of the adjusting rod, a downward force is applied to the locking plate. At this time, the locking plate leaves the surface of the groove. Under the push of the second spring, the fourth baffle is pushed to close. Under the action of the third spring, the adjusting rod returns to its original position, completing the spring-loaded operation.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. This utility model, by setting a spring-loaded mechanism, when the fourth baffle is opened, pushes the second pull plate, which slides on the inner surface of the placement cavity. When the second pull plate reaches the groove and contacts the sliding rod, it pushes the sliding rod to slide on the inner surface of the spring-loaded mechanism. During this sliding, the sixth connecting rod connected to the sliding rod presses the second spring backward. The sixth connecting rod slides on the inner surface of the fifth connecting rod. When the locking plate moves to the groove on the surface of the spring-loaded mechanism, it locks the spring-loaded mechanism in place. To close the fourth baffle, the push rod is pressed, at which point the spring-loaded mechanism is connected to the second spring. The adjusting rod begins to slide inward. Under the action of the arc set on the surface of the adjusting rod, a downward force is applied to the clamping plate. At this time, the clamping plate leaves the surface of the groove. Under the push of the second spring, the fourth baffle is pushed to close. Under the action of the third spring, the adjusting rod returns to its original position, completing the rebound operation. This solves the problem that the independent cavity door of the traditional equipment requires manual operation when opening and closing. Through the multi-layer linkage design, medical staff can quickly and conveniently access and store various instruments and consumables required for peritoneal dialysis dressing changes, significantly reducing operation time and improving work efficiency.

[0013] 2. This utility model, by setting a sliding rod, allows the upper plate to be opened during use, driving the movement of the second placement box connected to the first connecting rod. At this time, the first and second placement boxes are in an open state under the action of the first, second, third, and fourth connecting rods. Under the movement of the fourth connecting rod and the inertia of opening, the first sliding rod slides upward in the groove opened on the surface of the fourth connecting rod. This pushes the second sliding rod connected to the surface of the connecting plate to slide backward in the groove opened on the surface of the second placement box, causing the first baffle to move inward. At this time, the third sliding rod connected to the first baffle moves in the groove opened on the surface of the second baffle. With the movement of the first baffle, the fourth sliding rod on the surface of the second baffle moves in the groove opened on the surface of the third baffle. This realizes the movement of the two baffles. Conversely, closing the baffles solves the problem of inconvenience in separating each storage container during the use of traditional equipment. Attached Figure Description

[0014] Figure 1 This is the front view of this utility model;

[0015] Figure 2 This is a cross-sectional view of the present invention;

[0016] Figure 3 This is a side view of the present invention;

[0017] Figure 4 This is a structural schematic diagram of part A of this utility model;

[0018] Figure 5 This is a structural schematic diagram of part B of this utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the rebound device of this utility model.

[0020] In the diagram: 1. Lower plate; 2. Upper plate; 3. First connecting rod; 4. Fourth connecting rod; 5. Second connecting rod; 6. Placement cavity; 7. Fourth baffle; 8. Second pull plate; 9. Pressing rod; 10. Arc-shaped baffle; 11. First pull plate; 12. First spring; 13. Third connecting rod; 14. First placement box; 15. Second placement box; 16. Third baffle; 17. Fourth sliding rod; 18. Third sliding rod; 19. Second sliding rod; 20. Connecting plate; 21. First sliding rod; 22. Second baffle; 23. First baffle; 24. Adjusting rod; 25. Sliding rod; 26. Rebound device; 27. Pushing plate; 28. Clamping plate; 29. ​​Fixing plate; 30. Second spring; 31. Fifth connecting rod; 32. Sixth connecting rod; 33. Third spring; 34. Seventh connecting rod; 35. Fixed arc plate. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0022] Example:

[0023] Please see Figure 1 - Figure 6This utility model provides a technical solution: a multi-layer treatment tray for peritoneal dialysis dressing changes in nephrology, comprising a lower tray body 1, an upper tray body 2 movably connected to the upper surface of the lower tray body 1, a first connecting rod 3 movably connected to the outer surface of the inner side of the upper tray body 2, a second connecting rod 5 movably connected to the outer surface of the inner side of the lower tray body 1, a third connecting rod 13 movably connected to the outer surface of the inner side of the lower tray body 1, a first placement box 14 movably connected to the outer surface of the third connecting rod 13, a second placement box 15 movably connected to the outer surface of the second connecting rod 5, and a fourth connecting rod 4 movably connected to the outer surface of the second placement box 15. The inner surface of the fourth connecting rod 4 is slidably connected... A first sliding rod 21 is connected to a connecting plate 20, and a second sliding rod 19 is fixedly connected to the outer surface of the connecting plate 20. The outer surface of the second sliding rod 19 is slidably connected to the inner surface of the second placement box 15. When the upper plate 2 is opened, the second placement box 15 connected to the first connecting rod 3 is moved. At this time, the first placement box 14 and the second placement box 15 are in an open state under the action of the first connecting rod 3, the second connecting rod 5, the third connecting rod 13 and the fourth connecting rod 4. At this time, under the movement of the fourth connecting rod 4 and the inertia of opening, the first sliding rod 21 slides upward in the groove opened on the surface of the fourth connecting rod 4.

[0024] A first baffle 23 is fixedly connected to the outer surface of the second sliding rod 19. A third sliding rod 18 is fixedly connected to the outer surface of the first baffle 23. A second baffle 22 is slidably connected to the outer surface of the third sliding rod 18. A fourth sliding rod 17 is fixedly connected to the outer surface of the second baffle 22. A third baffle 16 is slidably connected to the outer surface of the fourth sliding rod 17. The outer surface of the third baffle 16 is fixedly connected to the outer surface of the inner side of the second placement box 15. At this time, under the movement of the fourth connecting rod 4 and the inertia of opening... The first sliding rod 21 slides upward in the groove on the surface of the fourth connecting rod 4. At this time, it pushes the second sliding rod 19 connected to the surface of the connecting plate 20 to slide backward in the groove on the surface of the second placement box 15, causing the first baffle 23 to move inward. At this time, the third sliding rod 18 connected to the first baffle 23 moves in the groove on the surface of the second baffle 22. Under the movement of the first baffle 23, the fourth sliding rod 17 on the surface of the second baffle 22 moves in the groove on the surface of the third baffle 16. At this time, the movement of the two baffles is realized, and the baffles are closed otherwise.

[0025] The lower plate 1 has a fixedly connected placement cavity 6 on its inner outer surface. The inner surface of the placement cavity 6 is slidably connected to an arc-shaped baffle 10. The outer surface of the arc-shaped baffle 10 is fixedly connected to a first pull plate 11. When the arc-shaped baffle 10 on the left side of the placement cavity 6 is to be opened, the first pull plate 11 is pulled, and the arc-shaped baffle 10 slides on the inner surface of the placement cavity 6. At this time, the first spring 12 is compressed. After the item is taken out, the arc-shaped baffle 10 is released under the action of the first spring 12.

[0026] The outer surface of the arc-shaped baffle 10 is fixedly connected to the first spring 12, and the outer surface of the first spring 12 is fixedly connected to the inner surface of the placement cavity 6. When the first spring 12 is compressed, the arc-shaped baffle 10 will automatically close under the action of the first spring 12 after the item is taken out.

[0027] The inner surface of the placement cavity 6 is slidably connected to a fourth baffle 7, and the outer surface of the fourth baffle 7 is fixedly connected to a second pull plate 8. The inner surface of the fourth baffle 7 is slidably connected to a push rod 9. When the fourth baffle 7 is to be closed, the push rod 9 is pressed. At this time, the connected adjusting rod 24 begins to slide inward. Under the action of the arc set on the surface of the adjusting rod 24, a downward force is applied to the locking plate 28. At this time, the locking plate leaves the surface of the groove 28, and the fourth baffle 7 is pushed to close under the thrust of the second spring 30.

[0028] The inner surface of the fourth baffle 7 is provided with a spring-loaded device 26. A fifth connecting rod 31 is fixedly connected to the inner surface of the spring-loaded device 26. A sixth connecting rod 32 is slidably connected to the inner surface of the fifth connecting rod 31. A second spring 30 is fixedly connected to the outer surface of the fifth connecting rod 31. A fixing plate 29 is fixedly connected to the outer surface of the sixth connecting rod 32. A clamping plate 28 is fixedly connected to the outer surface of the fixing plate 29. A fixing arc plate 35 is fixedly connected to the outer surface of the sixth connecting rod 32. A pushing circular plate 27 is fixedly connected to the outer surface of the fixing arc plate 35. A sliding circular rod 25 is fixedly connected to the outer surface of the pushing circular plate 27. An adjusting circular rod 24 is slidably connected to the inner surface of the sliding circular rod 25. The outer surface of the sliding circular rod 25 is slidably connected to the inner surface of the spring-loaded device 26. A seventh connecting rod 34 is fixedly connected to the outer surface of the right end of the adjusting circular rod 24. A third spring 33 is fixedly connected to the outer surface of the right end of the adjusting circular rod 24. When the fourth baffle 7 is opened, the second pull plate 8 is pushed. At this time, the second pull plate 8 slides on the inner surface of the placement cavity 6. When the second pull plate 8 reaches the groove plate and contacts the sliding rod 25, the sliding rod 25 is pushed to slide on the inner surface of the spring-loaded device 26. During the sliding, the sixth connecting rod 32 connected to the sliding rod 25 presses the second spring 30 backward. The sixth connecting rod 32 slides on the inner surface of the fifth connecting rod 31. When the locking plate 28 moves to the groove on the surface of the spring-loaded device 26, the locking plate 28 locks the spring-loaded device 26 and fixes it. When the fourth baffle 7 is to be closed, the pressing rod 9 is pressed. At this time, the connected adjusting rod 24 begins to slide inward. Under the action of the arc set on the surface of the adjusting rod 24, a downward force is applied to the locking plate 28. At this time, the locking plate leaves the surface of the groove of 28. Under the push of the second spring 30, the fourth baffle 7 is pushed to close. Under the action of the third spring 33, the adjusting rod 24 returns to its original position, completing the spring-loaded operation.

[0029] Working principle:

[0030] This treatment tray adopts a multi-layer linkage design, and realizes the opening and closing of each functional area through a mechanical structure. The main body of the treatment tray consists of an upper tray body 2 and a multi-layer placement box. Each component is linked and controlled through a connecting rod system.

[0031] In use, opening the upper plate 2 moves the second placement box 15 connected to the first connecting rod 3. At this time, the first placement box 14 and the second placement box 15 are in an open state under the action of the first connecting rod 3, the second connecting rod 5, the third connecting rod 13 and the fourth connecting rod 4. Under the movement of the fourth connecting rod 4 and the inertia of opening, the first sliding rod 21 slides upward in the groove opened on the surface of the fourth connecting rod 4. At this time, it pushes the second sliding rod 19 connected to the surface of the connecting plate 20 to slide backward in the groove opened on the surface of the second placement box 15, causing the first baffle 23 to move inward. At this time, the third sliding rod 18 connected to the first baffle 23 moves in the groove opened on the surface of the second baffle 22. Under the movement of the first baffle 23, the fourth sliding rod 17 on the surface of the second baffle 22 moves in the groove opened on the surface of the third baffle 16. At this time, the movement of the two baffles is realized. Conversely, the baffles are closed.

[0032] When the fourth baffle 7 is opened, the second pull plate 8 is pushed. At this time, the second pull plate 8 slides on the inner surface of the placement cavity 6. When the second pull plate 8 reaches the groove plate and contacts the sliding rod 25, the sliding rod 25 is pushed to slide on the inner surface of the spring-loaded device 26. During the sliding, the sixth connecting rod 32 connected to the sliding rod 25 presses the second spring 30 backward. The sixth connecting rod 32 slides on the inner surface of the fifth connecting rod 31. When the locking plate 28 moves to the groove on the surface of the spring-loaded device 26, the locking plate 28 locks the spring-loaded device 26 and fixes it. When the fourth baffle 7 is to be closed, the pressing rod 9 is pressed. At this time, the connected adjusting rod 24 begins to slide inward. Under the action of the arc set on the surface of the adjusting rod 24, a downward force is applied to the locking plate 28. At this time, the locking plate leaves the surface of the groove of 28. Under the push of the second spring 30, the fourth baffle 7 is pushed to close. Under the action of the third spring 33, the adjusting rod 24 returns to its original position, completing the spring-loaded operation.

[0033] When the left arc-shaped baffle 10 of the placement cavity 6 is to be opened, the first pull plate 11 is pulled, and the arc-shaped baffle 10 slides on the inner surface of the placement cavity 6. At this time, the first spring 12 is compressed. After the items are taken out, the arc-shaped baffle 10 automatically closes under the action of the first spring 12. Through the mechanical structure linkage design, the treatment tray realizes the orderly storage and convenient access of various instruments and consumables during peritoneal dialysis dressing changes, which significantly improves the work efficiency of nephrology medical staff.

[0034] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A multi-layer treatment tray for peritoneal dialysis dressing change in nephrology, comprising a lower tray body (1), characterized in that: The upper surface of the lower plate (1) is movably connected to the upper plate (2). The outer surface of the inner side of the upper plate (2) is movably connected to the first connecting rod (3). The outer surface of the inner side of the lower plate (1) is movably connected to the second connecting rod (5). The outer surface of the inner side of the lower plate (1) is movably connected to the third connecting rod (13). The outer surface of the third connecting rod (13) is movably connected to the first placement box (14). The outer surface of the second connecting rod (5) is movably connected to the second placement box (15). The outer surface of the second placement box (15) is movably connected to the fourth connecting rod (4). The inner surface of the fourth connecting rod (4) is slidably connected to the first sliding rod (21). The outer surface of the first sliding rod (21) is fixedly connected to the connecting plate (21). The outer surface of the connecting plate (20) is fixedly connected to the second sliding rod (19). The outer surface of the second sliding rod (19) is slidably connected to the inner surface of the second placement box (15).

2. The multi-layer treatment tray for peritoneal dialysis dressing change in nephrology according to claim 1, characterized in that: The outer surface of the second sliding rod (19) is fixedly connected to a first baffle (23), the outer surface of the first baffle (23) is fixedly connected to a third sliding rod (18), the outer surface of the third sliding rod (18) is slidably connected to a second baffle (22), the outer surface of the second baffle (22) is fixedly connected to a fourth sliding rod (17), the outer surface of the fourth sliding rod (17) is slidably connected to a third baffle (16), and the outer surface of the third baffle (16) is fixedly connected to the outer surface of the inner side of the second placement box (15).

3. A multi-layer treatment tray for peritoneal dialysis dressing change in nephrology according to claim 1, characterized in that: The lower plate (1) has a placement cavity (6) fixedly connected to the outer surface of its inner side. The inner surface of the placement cavity (6) is slidably connected to an arc-shaped baffle (10). The outer surface of the arc-shaped baffle (10) is fixedly connected to a first pull plate (11).

4. A multi-layer treatment tray for peritoneal dialysis dressing change in nephrology according to claim 3, characterized in that: The outer surface of the arc-shaped baffle (10) is fixedly connected to the first spring (12), and the outer surface of the first spring (12) is fixedly connected to the inner surface of the placement cavity (6).

5. A multi-layer treatment tray for peritoneal dialysis dressing change in nephrology according to claim 3, characterized in that: The inner surface of the placement cavity (6) is slidably connected to a fourth baffle (7), the outer surface of the fourth baffle (7) is fixedly connected to a second pull plate (8), and the inner surface of the fourth baffle (7) is slidably connected to a push rod (9).

6. A multi-layer treatment tray for peritoneal dialysis dressing change in nephrology according to claim 5, characterized in that: The inner surface of the fourth baffle (7) is provided with a spring-loaded device (26). A fifth connecting rod (31) is fixedly connected to the inner surface of the spring-loaded device (26). A sixth connecting rod (32) is slidably connected to the inner surface of the fifth connecting rod (31). A second spring (30) is fixedly connected to the outer surface of the fifth connecting rod (31). A fixing plate (29) is fixedly connected to the outer surface of the sixth connecting rod (32). A clamping plate (28) is fixedly connected to the outer surface of the fixing plate (29). The outer surface of the sixth connecting rod (32) is fixedly connected to... There is a fixed arc plate (35), and a push circular plate (27) is fixedly connected to the outer surface of the fixed arc plate (35). A sliding circular rod (25) is fixedly connected to the outer surface of the push circular plate (27). An adjusting circular rod (24) is slidably connected to the inner surface of the sliding circular rod (25). The outer surface of the sliding circular rod (25) is slidably connected to the inner surface of the rebound device (26). A seventh connecting rod (34) is fixedly connected to the outer surface of the right end of the adjusting circular rod (24). A third spring (33) is fixedly connected to the outer surface of the right end of the adjusting circular rod (24).

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