Textile primary cleaning device

Abstract

The invention discloses a textile primary cleaning device, and relates to the technical field of textile processing, the textile primary cleaning device comprises a cleaning box main body, a protection plate is fixedly mounted on the left side of the cleaning box main body, a feeding roller shaft is movably mounted on the inner side of the protection plate, and roller shaft columns are fixedly mounted at the two ends of an inner cavity of the cleaning box main body; cleaning water tanks are fixedly mounted on the two sides of the top of the cleaning box body, and cleaning nozzles are fixedly mounted at the bottoms of the cleaning water tanks. Through mutual cooperation of a lower pressing roller shaft, a bottom plate, a buffer column, a top plate, a pressing pad, a rubber gasket and a friction pad, the problem that when a rolling mechanism extrudes water, the phenomenon of overpressure is likely to happen, and consequently textiles are damaged is solved, the buffer protection function is achieved, an upper pressing roller shaft is driven by a telescopic rod to press downwards and push the top of the top plate, and the practicability is high. Buffering columns are matched for buffering extrusion, a rubber gasket and a friction pad are used for damping consumption of extrusion force, the overpressure prevention function is achieved, and the protection function of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of textile processing, in particular to a textile primary cleaning device. Background Art

[0002] Textiles are a kind of product made by weaving textile fibers, which are divided into two categories: woven fabrics and knitted fabrics. With the continuous improvement of people's living standards, the application of textiles is becoming more and more extensive, and textile equipment is developing accordingly. In textile production, many fabrics are usually wound on winding rollers. At present, in the production process of textiles, due to printing and dyeing, deep processing and other processes, many chemical raw materials will remain on the textiles. If the textiles are not fully cleaned, it will cause harm to the human body. Therefore, cleaning textiles is a necessary process, and textiles usually need to go through multiple different cleanings to be clean, so as to meet the use standards. The initial cleaning is the first cleaning of the textiles just after processing, which is of great significance to the later cleaning and shaping of the textiles.

[0003] In the existing technical scheme, a publication number: CN220665660U is proposed, which is a textile primary cleaning device for clothing, including a main body mechanism, a textile conveying mechanism and a cleaning mechanism, wherein the textile conveying mechanism is located at the upper end of the main body mechanism, and the cleaning mechanism is located at the upper end of the main body mechanism. The main body mechanism includes a main body fixing bracket, a first fixing hole for reel, a second fixing hole for reel, an engine protection shell and a rotating roller, and the front side of the upper end of the main body fixing bracket is fixedly connected to the first fixing hole for reel.

[0004] In order to solve the problem that various wool yarns, small thread ends, dust and other debris will adhere to the surface of textiles after primary processing, which will cause the entire textile surface to appear untidy and have a great impact on the processing quality of subsequent processes, the prior art adopts a cleaning mechanism structure, so that the textile primary cleaning device for clothing can efficiently clean the primary processed textiles during actual use. However, there is still a problem that the roller mechanism of the cleaning mechanism is prone to over-pressure when squeezing out water, thereby damaging the textiles. Summary of the invention

[0005] The object of the present invention is to provide a textile preliminary cleaning device to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] The textile primary cleaning device comprises a cleaning box body, a protective plate is fixedly installed on the left side of the cleaning box body, a feeding roller is movably installed on the inner side of the protective plate, roller columns are fixedly installed at both ends of the inner cavity of the cleaning box body, clean water tanks are fixedly installed on both sides of the top of the cleaning box body, a cleaning nozzle is fixedly installed on the bottom of the clean water tank, and a discharging roller is fixedly installed on the right end of the cleaning box body.

[0008] A fixed roller group is fixedly installed on the left side of the inner wall of the cleaning box body, and a movable roller group is movably installed on the right side of the inner wall of the cleaning box body. An adjusting mechanism is arranged inside the movable roller group.

[0009] A slide groove is provided inside the protective plate, a driving slider is movably installed inside the slide groove, and a quick release mechanism is arranged on the inner side of the driving slider.

[0010] A further improvement of the technical solution of the present invention is that the adjustment mechanism includes a telescopic rod, the top of the telescopic rod is fixedly installed on the top of the inner cavity of the movable roller shaft group, the bottom of the telescopic rod is movably connected with a connecting block, the internal movably sleeve of the connecting block is connected with an upper pressure roller shaft, and one end of the upper pressure roller shaft is fixedly connected with a driving motor.

[0011] By adopting the above technical scheme, the telescopic rod, the movable roller shaft group, the connecting block, the upper pressure roller shaft and the driving motor cooperate with each other, and the telescopic rod is telescopically moved to drive the connecting block and the upper pressure roller shaft to slide up and down, so that the device can adjust the distance between the upper pressure roller shaft and the lower pressure roller shaft, and cooperate with the driving motor to drive the upper pressure roller shaft to roll, thereby achieving the function of roller cleaning.

[0012] A further improvement of the technical solution of the present invention is that: a pressure pad is movably connected to the bottom of the connecting block, a buffer column is movably connected to the bottom of the pressure pad, and a top plate is movably sleeved on the outer side of the top of the buffer column.

[0013] By adopting the above technical scheme, the pressure pad, buffer column and top plate cooperate with each other, the telescopic rod drives the upper pressure roller to press down, pushes on the top of the top plate, cooperates with the buffer column to perform buffering and squeezing, and uses rubber washers and friction pads to damp and consume the squeezing force, thereby achieving the function of preventing overpressure.

[0014] A further improvement of the technical solution of the present invention is that a bottom plate is fixedly installed at the bottom of the buffer column, and a lower pressure roller is fixedly installed at the bottom of the bottom plate.

[0015] By adopting the above technical solution, the buffer column, the bottom plate and the lower pressing roller cooperate with each other to achieve the function of buffer rolling.

[0016] A further improvement of the technical solution of the present invention is that rubber washers are movably sleeved at the upper and lower ends of the pressure pad, a friction pad is fixedly installed on the inner wall of the pressure pad, and the inner side of the friction pad is movably installed on the outer side of the top of the buffer column.

[0017] By adopting the above technical scheme, the pressure pad, rubber gasket and friction pad cooperate with each other, and while the buffer column is squeezed, the top of the buffer column is in friction contact with the rubber gasket and the friction pad, so as to achieve the function of damping and buffering force, improve the buffering function of the device, and increase the protection function of the device.

[0018] A further improvement of the technical solution of the present invention is that the quick-release mechanism includes a connecting shaft, one end of which is fixedly connected to the inner side of the driving slider, the other end of which is fixedly connected to a telescopic shaft, and one end of which is fixedly connected to a plug-in block.

[0019] By adopting the above technical solution, the connecting shaft, the driving slider, the telescopic shaft and the plug-in block cooperate with each other to achieve the function of snap-on installation, which facilitates the convenient disassembly of the device.

[0020] A further improvement of the technical solution of the present invention is that a connecting sleeve is movably sleeved on the outer side of the plug-in block, a clamping block is movably installed on the outer side of the connecting sleeve, a driving guide block is fixedly installed on the other end of the clamping block, and a disassembly shaft is fixedly installed on one end of the driving guide block.

[0021] By adopting the above technical solution, the plug-in block, the connecting sleeve, the clamping block, the driving guide block and the disassembly shaft cooperate with each other, so that the driving guide block is electrically driven, driving the clamping block to slide inside the connecting sleeve and slide out from the inside of the plug-in block, so as to facilitate the telescopic movement of the telescopic shaft, thereby pulling out the inner side of the connecting sleeve to achieve the function of convenient disassembly.

[0022] A further improvement of the technical solution of the present invention is that one end of the disassembly shaft is movably connected to a fixed shaft, and the inner fixed sleeve on the other side of the fixed shaft is connected to one end of the feeding roller shaft.

[0023] A further improvement of the technical solution of the present invention is that a mounting hole is provided on the outer side of the fixed shaft, and a mounting bolt is installed on the internal thread of the mounting hole.

[0024] By adopting the above technical solution, the function of threaded installation is achieved through the cooperation between the installation hole and the installation bolt.

[0025] A further improvement of the technical solution of the present invention is that a plug-in plate is provided on the side of the connecting shaft close to the telescopic shaft, a sealing ring gasket is fixedly installed on the inner side of the plug-in plate, a threaded rod is movably installed on the top of the plug-in plate, and a sealing ring is fixedly installed on the top of the threaded rod.

[0026] By adopting the above technical scheme, the connecting shaft, the plug-in plate, the sealing ring, the threaded rod and the sealing ring cooperate with each other, and the sealing ring drives the threaded rod to be plugged into the plug-in plate to achieve the function of press-fit installation. A sealing ring is added at the press-fit connection to improve the sealing of the device, facilitate the stable installation of the device, and facilitate the stable movement and loading of the device.

[0027] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art:

[0028] 1. The present invention provides a preliminary cleaning device for textiles. By means of the cooperation of a movable roller group, a telescopic rod, a connecting block, a driving motor, an upper pressure roller and a lower pressure roller, the present invention solves the problem that the textiles cannot pass through the cleaning device due to the expansion of their volume when they are washed with water, and achieves the function of up and down adjustment. The telescopic rod is used to move telescopically to drive the connecting block and the upper pressure roller to slide up and down, so that the device can adjust the distance between the upper pressure roller and the lower pressure roller, which is conducive to convenient cleaning.

[0029] 2. The present invention provides a preliminary cleaning device for textiles. By means of the cooperation of a lower pressure roller, a bottom plate, a buffer column, a top plate, a pressure pad, a rubber gasket and a friction pad, the problem that the roller mechanism is prone to overpressure when squeezing water, thereby damaging the textiles, is solved, and the function of buffering protection is achieved. The upper pressure roller is driven by a telescopic rod to press downward and push on the top of the top plate, and the buffer column is cooperated to perform buffering and squeezing. The rubber gasket and the friction pad are used to damp and consume the squeezing force, thereby achieving the function of preventing overpressure and improving the protection function of the device.

[0030] 3. The present invention provides a preliminary cleaning device for textiles. By cooperating with each other through a disassembly shaft, a connecting sleeve, a driving guide block, a clamping block, a plug-in block and a telescopic shaft, the problem that the feeding mechanism of the textiles is inconvenient to replace the roller, thus affecting the convenient cleaning of the device, is solved, and the function of quick disassembly is achieved. The driving guide block is electrically driven to drive the clamping block to slide inside the connecting sleeve and slide out from the plug-in block, which facilitates the telescopic movement of the telescopic shaft, thereby pulling out the inner side of the connecting sleeve, which is conducive to the disassembly and replacement of the feeding roller from one side, thereby increasing the convenience of the device.

[0031] 4. The present invention provides a textile primary cleaning device, which cooperates with a sealing ring, a threaded rod, a sealing ring gasket and a plug-in plate. The sealing ring is used to drive the threaded rod to be plugged into the plug-in plate to achieve the function of press-fit installation. A sealing ring gasket is added at the press-fit connection to improve the sealing of the device, facilitate the stable installation of the device, and facilitate the stable movement and loading of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the present invention;

[0033] Figure 2 For the present invention Figure 1A in the enlarged view;

[0034] Figure 3 It is a schematic diagram of the structure of the movable roller shaft group of the present invention;

[0035] Figure 4 It is a schematic diagram of the top plate structure of the present invention;

[0036] Figure 5 It is a schematic diagram of the pressure pad structure of the present invention;

[0037] Figure 6 It is a schematic diagram of the structure of the protective plate of the present invention;

[0038] Figure 7 It is a schematic diagram of the disassembly shaft structure of the present invention;

[0039] Figure 8 It is a schematic diagram of the sealing ring structure of the present invention.

[0040] In the figure: 1. cleaning box body; 11. movable roller assembly; 111. telescopic rod; 112. connecting block; 113. driving motor; 12. upper pressure roller; 13. lower pressure roller; 131. bottom plate; 132. buffer column; 133. top plate; 134. pressure pad; 135. rubber gasket; 136. friction pad; 2. protective plate; 21. slide groove; 22. driving slider; 221. connecting shaft; 23. disassembly Shaft; 231, connecting sleeve; 232, driving guide block; 233, clamping block; 234, plug-in block; 235, telescopic shaft; 24, sealing ring; 241, threaded rod; 242, sealing ring gasket; 243, plug-in plate; 25, fixed shaft; 251, mounting hole; 252, mounting bolt; 3, feeding roller; 4, roller column; 5, cleaning water tank; 6, cleaning nozzle; 7, discharging roller; 8, fixed roller assembly. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below in conjunction with embodiments:

[0042] Example 1

[0043] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the present embodiment provides a textile preliminary cleaning device, comprising a cleaning box body 1, a protective plate 2 is fixedly installed on the left side of the cleaning box body 1, a feeding roller 3 is movably installed on the inner side of the protective plate 2, roller columns 4 are fixedly installed on both ends of the inner cavity of the cleaning box body 1, clean water tanks 5 are fixedly installed on both sides of the top of the cleaning box body 1, a cleaning nozzle 6 is fixedly installed on the bottom of the clean water tank 5, a discharging roller 7 is fixedly installed on the right end of the cleaning box body 1, a fixed roller group 8 is fixedly installed on the left side of the inner wall of the cleaning box body 1, and a movable roller group 11 is movably installed on the right side of the inner wall of the cleaning box body 1, and an adjustment mechanism is arranged inside the movable roller group 11. The joint mechanism includes a telescopic rod 111, the top of the telescopic rod 111 is fixedly installed on the top of the inner cavity of the movable roller shaft group 11, the bottom of the telescopic rod 111 is movably connected with a connecting block 112, the inner part of the connecting block 112 is movably sleeved with an upper pressure roller shaft 12, one end of the upper pressure roller shaft 12 is fixedly connected with a driving motor 113, the bottom of the connecting block 112 is movably connected with a pressure pad 134, the bottom of the pressure pad 134 is movably connected with a buffer column 132, the outer side of the top of the buffer column 132 is movably sleeved with a top plate 133, the bottom of the buffer column 132 is fixedly installed with a bottom plate 131, the bottom of the bottom plate 131 is fixedly installed with a lower pressure roller shaft 13, and the inner part of the pressure pad 134 is movably connected with a buffer column 132. The upper and lower ends are movably sleeved with rubber washers 135, the inner wall of the pressure pad 134 is fixedly installed with a friction pad 136, the inner side of the friction pad 136 is movably installed on the outer side of the top of the buffer column 132, and the protective plate 2 cooperates with the feeding roller 3 to load the material, and drives the textile to be wound around the roller column 4 to achieve the function of tension connection, and then the textile passes through the fixed roller group 8, and the roller group is used to roll to remove the debris on the surface, and then the cleaning water tank 5 cooperates with the cleaning nozzle 6 to spray water to achieve the function of spraying and cleaning, and then passes through the movable roller group 11, and the telescopic rod 111 is used to telescopically move, and the connecting block 112 and the upper pressure roller 12 are pushed on the upper pressure roller 12. The roller 12 slides inside, thereby driving the upper pressure roller 12 to adjust the distance with the lower pressure roller 13, so as to facilitate the convenient rolling of the textiles. The driving motor 113 provides power to drive the upper pressure roller 12 to rotate, so as to achieve the purpose of rotating the roller to press the moisture of the textiles and increase the cleanliness of the device. While adjusting the extrusion, the buffer column 132 and the pressure pad 134 cooperate to squeeze. When the buffer column 132 moves during the extrusion, the pressure pad 134 contacts and rubs with the friction pad 136 to achieve the function of damping the buffering force. When the buffer column 132 reaches the extrusion limit, the telescopic column cannot push, so as to facilitate the device to limit the protection of the downward pressing mechanism and achieve the function of preventing overpressure.

[0044] Example 2

[0045] like Figure 6 , Figure 7As shown, on the basis of Example 1, this embodiment provides a technical solution: preferably, a slide groove 21 is opened inside the protective plate 2, a driving slider 22 is movably installed inside the slide groove 21, a quick release mechanism is arranged on the inner side of the driving slider 22, and the quick release mechanism includes a connecting shaft 221, one end of the connecting shaft 221 is fixedly connected to the inner side of the driving slider 22, the other end of the connecting shaft 221 is fixedly connected to the telescopic shaft 235, the outer side of the plug-in block 234 is movably sleeved with a connecting sleeve 231, the outer side of the connecting sleeve 231 is movably installed with a clamping block 233, the other end of the clamping block 233 is fixedly installed with a driving guide block 232, and the driving guide block One end of 232 is fixedly installed with a disassembly shaft 23, one end of the telescopic shaft 235 is fixedly connected with a plug-in block 234, one end of the disassembly shaft 23 is movably connected with a fixed shaft 25, and the internal fixed sleeve on the other side of the fixed shaft 25 is connected to one end of the feeding roller shaft 3. When the equipment is maintained, the electric power drives the driving guide block 232 to slide, driving the clamping block 233 to shrink from the inside of the plug-in block 234 to the connecting sleeve 231, thereby facilitating the retraction and movement of the telescopic shaft 235, driving the plug-in block 234 to disengage from the adjustment of the disassembly shaft 23, and utilizing the contracted gap to facilitate the staff to disassemble the other end, thereby achieving the function of disassembly and replacement, and increasing the maintainability of the device.

[0046] Example 3

[0047] like Figure 8 As shown, on the basis of Example 1, this embodiment provides a technical solution: preferably, a mounting hole 251 is provided on the outer side of the fixed shaft 25, and a mounting bolt 252 is installed on the internal thread of the mounting hole 251. A plug-in plate 243 is provided on the side of the connecting shaft 221 close to the telescopic shaft 235, and a sealing ring gasket 242 is fixedly installed on the inner side of the plug-in plate 243, and a threaded rod 241 is movably installed on the top of the plug-in plate 243, and a sealing ring 24 is fixedly installed on the top of the threaded rod 241. The disassembly shaft 23 and the feeding roller shaft 3 are respectively connected through the two ends of the fixed shaft 25, and threaded installation is performed using the mounting bolts 252, so as to facilitate the convenient disassembly and installation of the device, thereby achieving the function of segmented disassembly, and the sealing ring 24 drives the threaded rod 241 to be plugged into the plug-in plate 243 to achieve the function of press-fit installation, and a sealing ring gasket 242 is added at the press-fit connection to improve the sealing performance of the device, facilitate the stable installation of the device, and facilitate the stable movement and feeding of the device.

[0048] The working principle of the textile preliminary cleaning device will be specifically described below.

[0049] like Figure 1-8As shown, the protective plate 2 cooperates with the feeding roller 3 to load the material, and drives the textile to be wound around the roller column 4 to achieve the function of tension connection. When the textile passes through the fixed roller group 8, the roller group is used to roll to remove the debris on the surface, and then the clean water tank 5 cooperates with the cleaning nozzle 6 to spray water to achieve the function of spraying and cleaning. Then, it passes through the movable roller group 11 and uses the telescopic rod 111 to move telescopically, and pushes the connecting block 112 and the upper pressing roller 12 to slide inside the upper pressing roller 12, thereby driving the upper pressing roller 12 to adjust the distance with the lower pressing roller 13, so as to facilitate the convenient rolling of the textile. Then, the driving motor 113 provides power to drive the upper pressing roller 12 to rotate, so as to rotate and roll the textile to remove moisture, increase the cleanliness of the device, and while squeezing and adjusting, use the buffer column 132 and the pressure pad 134 to cooperate with each other for squeezing. When the buffer column 132 is squeezed and moved, the pressure pad 134 contacts and rubs with the friction pad 136 to achieve the function of damping and buffering force. The buffer column 132 squeezes When the pressure reaches the limit, the telescopic column cannot be pushed, thereby facilitating the device to limit the protection of the downward pressure mechanism and achieving the function of preventing overpressure, so that the textiles are collected and taken out from the discharge roller shaft 7. When the equipment is maintained, the electric power drives the driving guide block 232 to slide, driving the clamping block 233 to shrink from the inside of the plug-in block 234 to the connecting sleeve 231, thereby facilitating the telescopic shaft 235 to shrink and move, driving the plug-in block 234 to disengage from the adjustment of the disassembly shaft 23, and utilizing the shrinkage gap to facilitate the staff to disassemble the other end, thereby achieving the function of disassembly and replacement, and increasing the maintainability of the device. The two ends of the fixed shaft 25 are respectively connected to the disassembly shaft 23 and the feeding roller shaft 3, and are threadedly installed using the mounting bolts 252, which facilitates the convenient disassembly and installation of the device, thereby achieving the function of segmented disassembly. The sealing ring 24 drives the threaded rod 241 to be plugged into the plug-in plate 243 to achieve the function of press-fit installation. A sealing ring gasket 242 is added at the press-fit connection to improve the sealing of the device, facilitate the stable installation of the device, and facilitate the stable movement and loading of the device.

[0050] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A textile preliminary cleaning device, comprising a cleaning box body (1), characterized in that: A protective plate (2) is fixedly installed on the left side of the cleaning box body (1), a feeding roller (3) is movably installed on the inner side of the protective plate (2), roller columns (4) are fixedly installed at both ends of the inner cavity of the cleaning box body (1), cleaning water tanks (5) are fixedly installed on both sides of the top of the cleaning box body (1), a cleaning nozzle (6) is fixedly installed at the bottom of the cleaning water tank (5), and a discharging roller (7) is fixedly installed at the right end of the cleaning box body (1); A fixed roller assembly (8) is fixedly mounted on the left side of the inner wall of the cleaning box body (1), and a movable roller assembly (11) is movably mounted on the right side of the inner wall of the cleaning box body (1), wherein an adjustment mechanism is arranged inside the movable roller assembly (11); A slide groove (21) is provided inside the protective plate (2), a driving slider (22) is movably installed inside the slide groove (21), and a quick-release mechanism is provided on the inner side of the driving slider (22).

2. The textile preliminary cleaning device according to claim 1, characterized in that: The adjustment mechanism comprises a telescopic rod (111), the top of the telescopic rod (111) is fixedly mounted on the top of the inner cavity of the movable roller shaft group (11), the bottom of the telescopic rod (111) is movably connected to a connecting block (112), the interior of the connecting block (112) is movably sleeved with an upper pressure roller shaft (12), and one end of the upper pressure roller shaft (12) is fixedly connected to a driving motor (113).

3. The textile preliminary cleaning device according to claim 2, characterized in that: The bottom of the connection block (112) is movably connected to a pressure pad (134), the bottom of the pressure pad (134) is movably connected to a buffer column (132), and the outer side of the top of the buffer column (132) is movably sleeved with a top plate (133).

4. The textile preliminary cleaning device according to claim 3, characterized in that: A bottom plate (131) is fixedly mounted on the bottom of the buffer column (132), and a lower pressure roller (13) is fixedly mounted on the bottom of the bottom plate (131).

5. The textile preliminary cleaning device according to claim 3, characterized in that: The upper and lower ends of the pressure pad (134) are movably sleeved with rubber washers (135), the inner wall of the pressure pad (134) is fixedly mounted with a friction pad (136), and the inner side of the friction pad (136) is movably mounted on the outer side of the top of the buffer column (132).

6. The textile preliminary cleaning device according to claim 1, characterized in that: The quick-release mechanism comprises a connecting shaft (221), one end of the connecting shaft (221) is fixedly connected to the inner side of the driving slider (22), the other end of the connecting shaft (221) is fixedly connected to a telescopic shaft (235), and one end of the telescopic shaft (235) is fixedly connected to a plug-in block (234).

7. The textile preliminary cleaning device according to claim 6, characterized in that: The outer side of the plug-in block (234) is movably sleeved with a connecting sleeve (231), the outer side of the connecting sleeve (231) is movably mounted with a clamping block (233), the other end of the clamping block (233) is fixedly mounted with a driving guide block (232), and one end of the driving guide block (232) is fixedly mounted with a disassembly shaft (23).

8. The textile preliminary cleaning device according to claim 7, characterized in that: One end of the disassembly shaft (23) is movably connected to a fixed shaft (25), and the other side of the fixed shaft (25) is internally fixedly sleeved on one end of the feeding roller shaft (3).

9. The textile preliminary cleaning device according to claim 8, characterized in that: A mounting hole (251) is provided on the outer side of the fixed shaft (25), and a mounting bolt (252) is installed on the inner thread of the mounting hole (251).

10. The textile preliminary cleaning device according to claim 6, characterized in that: A plug-in plate (243) is provided on one side of the connecting shaft (221) close to the telescopic shaft (235), a sealing ring gasket (242) is fixedly installed on the inner side of the plug-in plate (243), a threaded rod (241) is movably installed on the top of the plug-in plate (243), and a sealing ring (24) is fixedly installed on the top of the threaded rod (241).

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