Easily-taken abortion tissue sample collection box for pig herd detection

Abstract

The invention relates to the technical field of veterinary monitoring, and particularly discloses an easy-to-take abortion tissue sample collection box for pig herd detection, which comprises a storage box body, the upper surface of the storage box body is provided with a storage cavity, the side surface of the storage box body is provided with an opening, and the inner wall of the opening of the storage box body is provided with a cooling ice box; and a protective cover plate is arranged at the upper end of the storage box body. According to the easy-to-take abortion tissue sample collection box for pig herd detection, through the linkage design of a protective cover plate, a linkage rotating block, a first chain wheel, a second chain wheel and a transmission chain, when the protective cover plate is opened, power is transmitted to a guide toothed plate through a transmission gear, and a supporting sliding block and a limiting rotating arm are driven to push a storage baffle to be automatically erected; according to the mechanical linkage structure, the position of the baffle does not need to be manually adjusted, the test tubes in the containing cavity are completely exposed, the operation difficulty when the test tubes are taken is greatly reduced, and the mechanical linkage structure is particularly suitable for the rapid taking requirement when batch samples are collected.

Description

Technical Field

[0001] This invention relates to the field of veterinary monitoring technology, specifically to an easy-to-access abortion tissue sample collection box for pig herd detection. Background Technology

[0002] Swine reproductive disorders are a group of diseases characterized by abortion, stillbirth, mummified fetuses, weak piglets, and infertility in sows, or decreased semen quality and libido in boars. Their etiology is complex, with pathogenic microorganism infection being one of the main causes. Accurate isolation and identification of pathogens are crucial for the prevention and control of these diseases. Pathogens of swine reproductive disorders include viruses, bacteria, mycoplasma, and parasites, with viruses and bacteria being the most common. Pathogen isolation and identification must follow the process of "sample collection → pretreatment → isolation and culture → preliminary identification → molecular / serological confirmation" to ensure accurate and reliable results. Samples must be representative, timely, and complete. Priority should be given to collecting tissues or secretions with high pathogen content, such as those from abortions or stillbirths. At least three organs should be collected from each fetus, including the brain, lungs, liver, spleen, kidneys, lymph nodes, and myocardium, as well as the placenta, amniotic fluid, and fetal stomach contents.

[0003] When collecting tissue samples, solid and liquid samples need to be collected separately. Existing sample collection boxes can generally only hold test tubes of the same size. However, solid and liquid samples have different volumes, which is not conducive to the use of space in the collection box and reduces the overall practicality. Summary of the Invention

[0004] The purpose of this invention is to provide an easy-to-use abortion tissue sample collection box for swine herd detection, in order to solve the problem mentioned in the background art that existing sample collection boxes can generally only hold test tubes of the same size, but solid samples and liquid samples have different volumes, which is not conducive to the space utilization in the collection box and reduces the overall practicality.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an easily retrievable abortion tissue sample collection box for swine herd detection, comprising a storage cavity on the upper surface of a storage box body, an opening on the side surface of the storage box body, and a cooling ice box on the inner wall of the opening of the storage box body; a protective cover plate on the upper end of the storage box body; two linkage rotating blocks fixedly connected to the rear surface of the protective cover plate; a first sprocket fixedly connected to the surface of the linkage rotating blocks; two second sprockets installed on the inner wall of the storage cavity; and a transmission gear fixedly connected to one end of each second sprocket device. Two guide toothed plates are installed on the bottom surface of the cavity. A support slider is fixedly connected to one end of the guide toothed plate. A limit arm is installed at one end of the support slider. A storage baffle is installed between the two limit arms. The surface of the storage baffle is respectively provided with a first limit groove and a second limit groove. The inner walls of the first limit groove and the second limit groove are provided with an anti-slip limiting mechanism. The mechanism uses a spring to push the positioning block to rise, which pushes the linkage slider and the anti-slip pressure plate to slide horizontally, thereby limiting the movement. The spring also pushes the adjusting piston column to rise, which facilitates the pushing of air from the guide air groove into the anti-slip airbag to expand and limit the movement.

[0006] Preferably, the opening on the side surface of the storage box is connected to the lower end of the storage cavity, and the first sprocket is rotatably connected to the storage box.

[0007] Using the above technical solution, the opening on the side surface of the storage box is connected to the lower end of the storage cavity, which facilitates the placement and retrieval of samples and allows the cooling ice box to better cool the samples in the storage cavity. The first sprocket is rotatably connected to the storage box, which provides a basis for the subsequent movement of other components by rotating the first sprocket, thereby realizing the position adjustment of components such as the storage baffle.

[0008] Preferably, a transmission chain is installed between the outer surface of the first sprocket and the outer surface of the second sprocket, and the second sprocket is rotatably connected to the receiving cavity.

[0009] Using the above technical solution, a transmission chain is installed between the outer surface of the first sprocket and the outer surface of the second sprocket, which can transmit the rotation of the first sprocket to the second sprocket to ensure effective power transmission; the second sprocket and the receiving cavity form a rotatable connection, so that the second sprocket can rotate stably, thereby driving the transmission gear connected to it to rotate.

[0010] Preferably, the guide tooth plate is slidably connected to the storage box body, and the upper surface of the guide tooth plate is provided with tooth blocks, and the guide tooth plate is meshed with the transmission gear through the tooth blocks.

[0011] Using the above technical solution, the guide tooth plate and the storage box body form a sliding connection, which restricts the movement direction of the guide tooth plate, so that it can only slide in a specific direction. The upper surface of the guide tooth plate is provided with tooth blocks and forms a meshing connection with the transmission gear, which can convert the rotation of the transmission gear into the linear motion of the guide tooth plate, thereby adjusting the position of the support slider, the limiting arm and the storage baffle.

[0012] Preferably, the supporting slider and the limiting rotating arm are rotatably connected, and the limiting rotating arm and the storage baffle are rotatably connected, with one end of the storage baffle being rotatably connected to the storage cavity.

[0013] Using the above technical solution, the supporting slider and the limiting rotating arm form a rotating connection, the limiting rotating arm and the storage baffle form a rotating connection, and one end of the storage baffle forms a rotating connection with the storage cavity. These rotating connections allow the storage baffle to flexibly change its angle and position, making it convenient to adapt to the placement of samples of different sizes and improving space utilization.

[0014] Preferably, the first limiting groove is square and the second limiting groove is cylindrical, and both the second limiting groove and the first limiting groove penetrate the surface of the receiving baffle. The width of the first limiting groove is greater than the width of the second limiting groove.

[0015] Using the above technical solution, the first limiting groove is square and the second limiting groove is cylindrical, both of which penetrate the surface of the receiving baffle. The limiting grooves of different shapes can be adapted to sample containers of different shapes. The width of the first limiting groove is greater than the width of the second limiting groove, which further increases the compatibility with sample containers of different specifications.

[0016] Preferably, the anti-slip limiting mechanism includes a positioning block, which is embedded in the upper surface of the storage baffle. A linkage slider is installed through the inner wall of the first limiting groove. One end of the linkage slider is fixedly connected to an anti-slip pressure plate. An adjusting piston column is embedded in the upper surface of the storage baffle. A guide air groove is opened in the inner wall of the second limiting groove, and an anti-slip airbag is fixedly connected to the inner wall of the second limiting groove.

[0017] By adopting the above technical solution, the anti-slip limiting mechanism, through the cooperation of positioning blocks, linkage sliders, anti-slip pressure plates, adjusting piston columns, guide air grooves and anti-slip airbags, can effectively fix the sample container and prevent it from shaking or tipping over during the movement of the storage box, thus ensuring the stability and safety of the sample.

[0018] Preferably, the positioning block is disposed between the two left and right first limiting grooves, the positioning block and the storage baffle are slidably connected, and a spring is connected between the positioning block and the storage baffle.

[0019] Using the above technical solution, the positioning block is set between the two first limiting grooves on the left and right, and forms a sliding connection with the storage baffle and is connected with a spring. The spring force allows the positioning block to automatically reset, which facilitates the limiting operation of sample containers in different positions and enhances the practicality of the anti-slip limiting mechanism.

[0020] Preferably, the lower side surface of the positioning block is inclined, the end of the linkage slider facing the positioning block is arc-shaped, the linkage slider and the first limiting groove are slidably connected, a spring is connected between the anti-slip pressure plate and the first limiting groove, and an anti-slip rubber strip is provided on the surface of the anti-slip pressure plate.

[0021] The above technical solution features an inclined design on the lower side surface of the positioning block and an arc-shaped design on the end of the linkage slider facing the positioning block. This facilitates the positioning block pushing the linkage slider, which is slidably connected to the first limiting groove. The anti-slip pressure plate is connected to the first limiting groove by a spring and has anti-slip rubber strips on its surface, which can more firmly press the sample container and increase friction to prevent it from sliding.

[0022] Preferably, the adjusting piston rod and the receiving baffle are slidably connected, and a spring is connected between the adjusting piston rod and the receiving baffle. The guide air groove is connected to the anti-slip airbag, and the adjusting piston rod is located between the upper and lower second limiting grooves.

[0023] Using the above technical solution, the adjusting piston column and the receiving baffle form a sliding connection and are connected by a spring. The guide air groove is connected to the anti-slip airbag. The adjusting piston column is located between the upper and lower second limiting grooves. The spring pushes the adjusting piston column to rise, pushing air into the anti-slip airbag to make it expand, further enhancing the limiting effect on the sample container and ensuring the stable storage of the sample.

[0024] Compared with the prior art, the beneficial effects of the present invention are: the easily retrievable abortion tissue sample collection box for swine herd detection: 1. Through the linkage design of the protective cover, the linkage block, the first sprocket, the second sprocket and the transmission chain, when the protective cover is opened, the power is transmitted to the guide tooth plate through the transmission gear, which drives the support slider and the limit arm to push the storage baffle to be automatically supported. This mechanical linkage structure does not require manual adjustment of the baffle position, so that the test tubes in the storage cavity are fully exposed, which greatly reduces the difficulty of taking out the test tubes, and is especially suitable for the rapid retrieval needs when collecting batches of samples. 2. The surface of the storage baffle is designed with a square first limiting groove and a cylindrical second limiting groove, and the width of the first limiting groove is greater than that of the second limiting groove. It can be adapted to solid sample containers and liquid sample containers respectively. The differentiated design of the two limiting grooves breaks the limitation of traditional collection boxes that can only store containers of a single size. The space is flexibly allocated according to the sample type, avoiding space waste and significantly improving the space utilization of the storage box. 3. The anti-slip limiting mechanism ensures test tube safety through a dual stabilization design. The positioning block in the first limiting groove uses a spring to push the linkage slider and anti-slip pressure plate, and uses anti-slip rubber strips to clamp the square container. The adjusting piston in the second limiting groove uses a spring to drive air through the guide air groove to fill the anti-slip airbag, causing the airbag to expand and wrap around the cylindrical test tube. The stabilization process requires no additional operation, and when picking it up, you only need to push the positioning block or press the adjusting piston to release the limit. It achieves the dual advantages of "stable and firm" and "easy unlocking", avoiding damage to the sample due to shaking during transportation or handling. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the connection between the protective cover and the linkage rotating block of the present invention; Figure 2 This is a three-dimensional structural diagram of the connection between the storage box and the first sprocket of the present invention; Figure 3 This is a three-dimensional structural diagram of the connection between the storage box body and the storage cavity of the present invention; Figure 4 This is a three-dimensional structural diagram of the connection between the limiting rotating arm and the storage baffle of the present invention; Figure 5 This is a three-dimensional structural diagram of the connection between the second sprocket and the transmission gear of the present invention; Figure 6 This is a three-dimensional structural diagram of the connection between the supporting slider and the limiting rotating arm of the present invention; Figure 7 This is a three-dimensional structural diagram of the connection between the storage baffle and the first limiting groove of the present invention; Figure 8 This is a three-dimensional structural diagram of the connection between the storage baffle and the positioning block of the present invention; Figure 9 This is a three-dimensional structural diagram of the connection between the linkage slider and the anti-slip pressure plate of the present invention; Figure 10 This is a three-dimensional structural diagram of the connection between the guide air groove and the anti-slip airbag of the present invention.

[0026] In the diagram: 1. Storage box body; 2. Storage cavity; 3. Cooling ice box; 4. Protective cover; 5. Linkage block; 6. First sprocket; 7. Second sprocket; 8. Transmission chain; 9. Transmission gear; 10. Guide toothed plate; 11. Support slider; 12. Limiting arm; 13. Storage baffle; 14. First limiting groove; 15. Positioning block; 16. Linkage slider; 17. Anti-slip pressure plate; 18. Second limiting groove; 19. Adjusting piston column; 20. Guide air groove; 21. Anti-slip airbag. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figure 1-10 This invention provides a technical solution: an easy-to-access abortion tissue sample collection box for swine herd detection, comprising a storage box body 1, a storage cavity 2, a cooling ice box 3, a protective cover 4, a linkage rotating block 5, a first sprocket 6, a second sprocket 7, a transmission chain 8, a transmission gear 9, a guide tooth plate 10, a support slider 11, a limiting rotating arm 12, a storage baffle 13, a first limiting groove 14, a positioning block 15, a linkage slider 16, an anti-slip pressure plate 17, a second limiting groove 18, an adjusting piston column 19, a guide air groove 20, and an anti-slip airbag 21. The storage cavity 2 is formed on the upper surface of the storage box body 1, and an opening is provided on the side surface of the storage box body 1. A cooling ice box 3 is provided on the inner wall of the opening of the storage box body 1. A protective cover 4 is provided at the upper end of the storage box body 1. Two linkage rotating blocks 5 are fixedly connected to the rear surface of plate 4. A first sprocket 6 is fixedly connected to the surface of the linkage rotating block 5. Two second sprockets 7 are installed on the inner wall of the storage cavity 2. The opening on the side surface of the storage box 1 is connected to the lower end of the storage cavity 2. The first sprocket 6 is rotatably connected to the storage box 1. A transmission chain 8 is installed between the outer surface of the first sprocket 6 and the outer surface of the second sprocket 7. The second sprocket 7 is rotatably connected to the storage cavity 2. When the protective cover 4 is opened, the fixed linkage rotating block 5 drives the first sprocket 6 to rotate. The power is transmitted to the second sprocket 7 in the storage cavity 2 through the transmission chain 8, so that the transmission gear 9 at one end of the second sprocket 7 rotates synchronously. This process realizes the conversion of the power of the cover opening action to the internal mechanism through the meshing transmission of the sprocket and the chain.

[0029] One end of the second sprocket 7 is fixedly connected to a transmission gear 9. Two guide toothed plates 10 are installed on the bottom surface of the storage cavity 2. One end of the guide toothed plate 10 is fixedly connected to a support slider 11. One end of the support slider 11 is installed with a limiting arm 12. The guide toothed plate 10 is slidably connected to the storage box 1. The upper surface of the guide toothed plate 10 is provided with toothed blocks. The guide toothed plate 10 is meshed with the transmission gear 9 through the toothed blocks. The support slider 11 is rotatably connected to the limiting arm 12. The limiting arm 12 is rotatably connected to the storage baffle 13. One end of the storage baffle 13 is rotatably connected to the storage cavity 2. The transmission gear 9 meshes with the toothed blocks on the guide toothed plate 10, driving the guide toothed plate 10 to slide along the storage box 1, which in turn moves the support slider 11 at the end. The support slider 11 pushes the limiting arm 12 to rotate, so that the storage baffle 13 is supported upward with the end connected to the storage cavity 2 as the axis, exposing the internal limiting groove, which facilitates the removal and placement of test tubes.

[0030] A storage baffle 13 is installed between the two limiting rotating arms 12. The surface of the storage baffle 13 has a first limiting groove 14 and a second limiting groove 18. The first limiting groove 14 is square, and the second limiting groove 18 is cylindrical. Both the second limiting groove 14 and the first limiting groove 18 penetrate the surface of the storage baffle 13. The width of the first limiting groove 14 is greater than the width of the second limiting groove 18. The anti-slip limiting mechanism includes a positioning block 15, which is embedded in the upper surface of the storage baffle 13. The first limiting groove 14... A linkage slider 16 is installed through the inner wall, and an anti-slip pressure plate 17 is fixedly connected to one end of the linkage slider 16. An adjusting piston column 19 is embedded in the upper surface of the storage baffle 13. A guide air groove 20 is opened on the inner wall of the second limiting groove 18, and an anti-slip airbag 21 is fixedly connected to the inner wall of the second limiting groove 18. The first limiting groove 14 or the second limiting groove 18 is selected for placement according to the test tube type. In the first limiting groove 14, the spring pushes the positioning block 15 to rise, squeezing the linkage slider 16 and driving the anti-slip pressure plate 17 to clamp the square container.

[0031] The inner walls of the first limiting groove 14 and the second limiting groove 18 are provided with anti-slip limiting mechanisms. These mechanisms use springs to push the positioning block 15 upwards, causing it to push the linkage slider 16 and the anti-slip pressure plate 17 to slide horizontally, thus limiting the movement. Simultaneously, the springs push the adjusting piston column 19 upwards, facilitating the insertion of air from the guide air groove 20 into the anti-slip airbag 21 for expansion and limiting. The positioning block 15 is positioned between the two first limiting grooves 14 on the left and right sides. The positioning block 15 is slidably connected to the receiving baffle 13, and the positioning block 15 is also slidably connected to the receiving baffle 13. A spring connects the baffles 13. The lower side surface of the positioning block 15 is inclined. The end of the linkage slider 16 facing the positioning block 15 is arc-shaped. The linkage slider 16 and the first limiting groove 14 form a sliding connection. A spring connects the anti-slip pressure plate 17 and the first limiting groove 14. Anti-slip rubber strips are provided on the surface of the anti-slip pressure plate 17. In the second limiting groove 18, the spring drives the adjusting piston column 19 to rise. Air is filled into the anti-slip airbag 21 through the guide air groove 20. After expansion, the cylindrical test tube is fixed.

[0032] The adjusting piston 19 and the storage baffle 13 are slidably connected, and a spring is connected between the adjusting piston 19 and the storage baffle 13. The guide air groove 20 is connected to the anti-slip airbag 21. The adjusting piston 19 is located between the upper and lower second limit grooves 18. The cooling ice box 3 in the side opening of the storage box 1 keeps the sample fresh at low temperature through the connected storage cavity 2. When taking it out, pressing the positioning block 15 or adjusting the piston 19 can release the limit. Closing the protective cover 4 in the opposite direction will reset the baffle and complete the storage.

[0033] Working principle: When using this easy-to-access abortion tissue sample collection box for swine herd testing, opening the protective cover 4 causes the fixed linkage block 5 to drive the first sprocket 6 to rotate. This power is transmitted via the transmission chain 8 to the second sprocket 7 inside the storage cavity 2, causing the transmission gear 9 at one end of the second sprocket 7 to rotate synchronously. The transmission gear 9 meshes with the teeth of the guide tooth plate 10, driving the guide tooth plate 10 to slide along the storage box body 1, thus moving the support slider 11. The support slider 11 pushes the limiting rotating arm 12 to rotate, causing the storage baffle 13 to connect with the storage cavity 2. The end is axially supported upwards, exposing the limiting groove. When placing the test tube, the spring in the first limiting groove 14 pushes the positioning block 15 to rise, squeezing the linkage slider 16 to drive the anti-slip pressure plate 17 to clamp the square container. The spring in the second limiting groove 18 drives the adjusting piston column 19 to rise. Air is filled into the anti-slip airbag 21 through the guide air groove 20, expanding and fixing the cylindrical test tube. The cooling ice box 3 cools the cavity through the opening of the storage box 1. When taking it out, press the positioning block 15 or the adjusting piston column 19 to unlock it. When the cover is closed, the baffle is reversed and reset to complete the storage, which increases the overall practicality.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An easy-to-access abortion tissue sample collection box for swine herd detection, comprising a storage box body (1) with a storage cavity (2) on its upper surface, characterized in that: The storage box (1) has an opening on its side surface, and a cooling ice box (3) is provided on the inner wall of the opening of the storage box (1). A protective cover plate (4) is provided on the upper end of the storage box (1). Two linkage rotating blocks (5) are fixedly connected to the rear surface of the protective cover plate (4). A first sprocket (6) is fixedly connected to the surface of the linkage rotating block (5). Two second sprockets (7) are installed on the inner wall of the storage cavity (2). A transmission gear (9) is fixedly connected to one end of the second sprocket (7). Two guide tooth plates (10) are installed on the bottom surface of the storage cavity (2). A support slider is fixedly connected to one end of the guide tooth plate (10). (11) A limiting arm (12) is installed at one end of the supporting slider (11), and a storage baffle (13) is installed between the two limiting arms (12). The surface of the storage baffle (13) is respectively provided with a first limiting groove (14) and a second limiting groove (18). The inner walls of the first limiting groove (14) and the second limiting groove (18) are provided with an anti-slip limiting mechanism. The positioning block (15) is pushed up by the spring to push the linkage slider (16) and the anti-slip pressure plate (17) to slide horizontally, thereby limiting the movement. The adjusting piston column (19) is pushed up by the spring to facilitate the air being pushed from the guide air groove (20) into the anti-slip airbag (21) to expand and limit the movement.

2. The easily retrievable abortion tissue sample collection box for swine herd detection according to claim 1, characterized in that: The opening on the side surface of the storage box (1) is connected to the lower end of the storage cavity (2), and the first sprocket (6) is rotatably connected to the storage box (1).

3. The easily retrievable abortion tissue sample collection box for swine herd detection according to claim 1, characterized in that: A transmission chain (8) is installed between the outer surface of the first sprocket (6) and the outer surface of the second sprocket (7), and the second sprocket (7) is rotatably connected to the receiving cavity (2).

4. The easily retrievable abortion tissue sample collection box for swine herd detection according to claim 1, characterized in that: The guide tooth plate (10) is slidably connected to the storage box (1), and the upper surface of the guide tooth plate (10) is provided with tooth blocks, and the guide tooth plate (10) is meshed with the transmission gear (9) through the tooth blocks.

5. The easily retrievable abortion tissue sample collection box for swine herd detection according to claim 1, characterized in that: The supporting slider (11) is rotatably connected to the limiting rotating arm (12), and the limiting rotating arm (12) is rotatably connected to the storage baffle (13). One end of the storage baffle (13) is rotatably connected to the storage cavity (2).

6. The easily retrievable abortion tissue sample collection kit for swine herd detection according to claim 1, characterized in that: The first limiting groove (14) is square, the second limiting groove (18) is cylindrical, and both the second limiting groove (18) and the first limiting groove (14) penetrate the surface of the receiving baffle (13). The width of the first limiting groove (14) is greater than the width of the second limiting groove (18).

7. The easily retrievable abortion tissue sample collection box for swine herd detection according to claim 1, characterized in that: The anti-slip limiting mechanism includes a positioning block (15), which is embedded in the upper surface of the storage baffle (13). A linkage slider (16) is installed through the inner wall of the first limiting groove (14). An anti-slip pressure plate (17) is fixedly connected to one end of the linkage slider (16). An adjusting piston column (19) is embedded in the upper surface of the storage baffle (13). A guide air groove (20) is opened in the inner wall of the second limiting groove (18), and an anti-slip airbag (21) is fixedly connected to the inner wall of the second limiting groove (18).

8. The easily retrievable abortion tissue sample collection box for swine herd detection according to claim 7, characterized in that: The positioning block (15) is located between the two first limiting grooves (14) on the left and right. The positioning block (15) and the storage baffle (13) are slidably connected, and a spring is connected between the positioning block (15) and the storage baffle (13).

9. The easily retrievable abortion tissue sample collection box for swine herd detection according to claim 7, characterized in that: The lower side surface of the positioning block (15) is inclined, and the end of the linkage slider (16) facing the positioning block (15) is arc-shaped. The linkage slider (16) and the first limiting groove (14) form a sliding connection. A spring is connected between the anti-slip pressure plate (17) and the first limiting groove (14). Anti-slip rubber strips are provided on the surface of the anti-slip pressure plate (17).

10. The easily retrievable abortion tissue sample collection box for swine herd detection according to claim 7, characterized in that: The adjusting piston (19) and the receiving baffle (13) are slidably connected, and a spring is connected between the adjusting piston (19) and the receiving baffle (13). The guide air groove (20) is connected to the anti-slip airbag (21), and the adjusting piston (19) is located between the upper and lower second limiting grooves (18).

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