A self-sealing anti-leakage valve

Abstract

The present invention belongs to the field of valve technology, and discloses a self-sealing anti-leakage valve, including a valve body, a connecting component; a buffer component; an adjusting component; a cleaning component and a cut-off component. The present invention is provided with a cut-off component with auxiliary movement. When the piston block reaches the gap of the partition and then continuously moves downward, it will encounter the pressure of the water flow in the right chamber, forming a water hammer effect. At this time, the three metal rods will contact the groove ring and move clockwise downward in the groove. The L-shaped rod will be pushed out under the clockwise push of the cross plate and the elliptical groove. The shape of the L-shaped rod is a conical cross-section surface. When the L-shaped rod is continuously extended to the bottom surface of the partition, it will provide an additional downward extension force to the piston block. The auxiliary piston block can completely fit and close the gap at the partition, solving the problem that the water flow will produce a certain impact force on the opening and closing mechanism during the gradual closing process of the valve opening and closing parts, resulting in water hammer phenomenon and leakage.

Description

Technical Field

[0001] The invention belongs to the technical field of valves, and in particular relates to a self-sealing anti-leakage valve. Background Art

[0002] A valve is a control component commonly used to adjust the flow, pressure and flow direction of a medium. It is an indispensable control component in a fluid delivery system. The main structure of a valve includes a valve body, a valve cover, a valve stem, an opening and closing member, etc. The valve body is the main part of the valve, usually made of metal materials, and is a channel for the flow of the medium and bears the pressure from the pipeline. The valve stem connects the opening and closing member and the driving mechanism, transmitting the driving force to move the opening and closing member, thereby realizing the opening and closing of the valve;

[0003] However, in actual use, when the opening and closing parts of the valve are gradually closed, the water flow will produce a certain impact force on the opening and closing parts. This force is usually called water hammer phenomenon, which is caused by the sudden conversion of the kinetic energy of the fluid into pressure energy. It will cause the pressure in the pipeline to rise instantly, thereby causing impact and vibration to the valve and its connecting parts. In severe cases, it will damage the valve and cause water leakage in the valve body. When the valve is suddenly opened, the fluid will quickly spray high-intensity water flow in the small opening gap and fill the space inside the valve body, which will also cause unstable pressure in the valve body. Summary of the invention

[0004] The object of the present invention is to provide a self-sealing anti-leakage valve to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a self-sealing anti-leakage valve, comprising a valve body, both sides of which are fixedly connected with connection components, and a linkage buffer valve structure, which comprises a buffer component, the buffer component is fixedly installed on the top inner side of the valve body, the top of the buffer component is fixedly installed with an adjustment component, and the outer edge of the adjustment component is fixedly sleeved with a cleaning component;

[0006] A cut-off assembly, which is movably inserted in the middle of the buffer assembly, and the cut-off assembly includes a piston block, and four circular holes are opened around the outer edge of the bottom of the piston block. A circular shaft is installed through the inside of the piston block, and a cross plate is fixedly connected to the bottom end of the circular shaft, and a groove ring is fixedly installed on the top of the circular shaft. The cross plate has four elliptical grooves, and L-shaped rods are movably clamped in the four elliptical grooves, and the four L-shaped rods are inserted in the four circular holes.

[0007] Preferably, the valve body comprises a circular shell, the inner wall of which is fixedly mounted with a partition, the partition being a straight-line stepped structure, dividing the circular shell from left to right into a left chamber, a longitudinal chamber and a right chamber, the left chamber being a water inlet area, and the right chamber being a water outlet area.

[0008] Preferably, the connecting assembly includes two rubber pads, and the two rubber pads are fixedly installed on the left and right sides of the circular shell. Metal corrugated rings are fixedly installed inside the two rubber pads, and connecting pipes are fixedly installed outside the two rubber pads, and multiple first bolts are inserted into the interface ends of the left and right connecting pipes.

[0009] Preferably, the buffer assembly includes a piston plate, which is movably clamped on the inner wall of the longitudinal chamber, and a plurality of hemispherical holes are etched on the bottom of the piston plate, and a first spring is fixedly connected to the top of the piston plate, and a second spring is fixedly connected to the inner side of the first spring, and a fixed ring is elastically connected to the top of the first spring, and a movable ring is elastically connected to the top of the second spring, and a plurality of telescopic rods are movably hinged at the groove of the movable ring, and the telescopic ends of the plurality of telescopic rods are all movably hinged at the groove of the fixed ring.

[0010] Preferably, the diameter of the first spring is greater than the diameter of the second spring, the longitudinal height of the first spring is lower than the longitudinal height of the second spring, and the movable ring is located above the fixed ring.

[0011] Preferably, the adjusting assembly includes a top cover, a threaded shell is fixedly installed on the top of the top cover, the lower middle part of the threaded shell is inserted in the longitudinal chamber, a plurality of second bolts are inserted in the top of the threaded shell, the threaded shell and the top cover are locked to the top of the longitudinal chamber by the plurality of second bolts, a threaded rod is inserted in the internal thread of the threaded shell, the bottom of the threaded rod is fixedly connected to the piston block, a turntable is fixedly connected to the top of the threaded rod, the threaded rod is installed through a fixed ring, a movable ring and a piston plate, three fixed blocks are fixedly installed at the connecting rod of the turntable, the inner sides of the three fixed blocks are fixedly connected to metal rods, and the other ends of the three metal rods are movably clamped in the groove ring.

[0012] Preferably, the cleaning component includes an annular shell, which is fixedly mounted on the top of the threaded shell, and three V-shaped spring plates are mounted around the inside of the annular shell, and the inner sides of the three V-shaped spring plates are fixedly connected with trapezoidal blocks, and a gear ring is rotatably mounted inside the annular shell, and the inner wall of the gear ring is provided with a threaded groove and is threadedly connected to the threaded rod, and the three trapezoidal blocks are all in contact with the protruding teeth of the gear ring, and a plurality of semicircular grooves are arranged around the gear ring, and self-resetting baffles are rotatably mounted in the plurality of semicircular grooves, and the plurality of self-resetting baffles are composed of a torsion spring and a baffle.

[0013] The beneficial effects of the present invention are as follows:

[0014] 1. The present invention is equipped with a cut-off component with auxiliary movement. When the valve is closed, the turntable is rotated clockwise, and the turntable will drive the piston block to move downward. When the piston block reaches the gap of the partition and then moves downward continuously, it will encounter the pressure of the water flow in the right chamber, forming a water hammer effect. At this time, the three metal rods will contact the groove ring, and the three metal rods will move downward clockwise in the groove of the groove ring. The L-shaped rod will be pushed out of the circular hole under the clockwise push of the cross plate and the elliptical groove. The shape of the L-shaped rod is a conical cross-section surface. When the L-shaped rod continues to extend and approach the bottom surface of the partition, it will provide an additional downward extension force to the piston block, and the auxiliary piston block can completely fit and close the gap at the partition, thereby solving the problem that the water flow will generate a certain impact force on the opening and closing mechanism during the gradual closing process of the valve opening and closing parts, resulting in water hammer phenomenon and leakage.

[0015] 2. The present invention is equipped with a buffer assembly, and water is sprayed upward. The piston plate will be subjected to force, first compressing the second spring and then compressing the first spring. During the compression process, the movable ring will also rotate and retract in the groove of the fixed ring under the traction of multiple telescopic rods, so that the first spring and the second spring are linked into a whole. When the gap between the piston block and the round shell continues to expand, the pressure of the water flow in the longitudinal chamber gradually decreases. At this time, the first spring is reset first, and then the second spring is pulled to reset through the cooperation of the fixed ring, the telescopic rod and the movable ring, so as to achieve rapid reset, which solves the problem that when the valve is suddenly opened, the fluid will quickly spray high-intensity water flow in the gap with a small opening and fill the space inside the valve body, resulting in unstable pressure in the valve body.

[0016] 3. The present invention uses a rubber pad with a metal wave ring to lock the right chamber and the connecting pipe through a first bolt. The rubber pad installed therein can prevent water leakage at the joint, and the metal wave ring is installed in the rubber pad. This wave-shaped structure greatly enhances the overall longitudinal strength of the seal. When the fluid flows in the pipeline, especially when encountering large pressure fluctuations, the metal wave ring can better adapt to these dynamic changes and maintain a stable and reliable sealing effect. In addition, due to its special geometric shape, it is not easy to deform or damage during long-term use, thereby significantly extending the service life of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional view of the overall structure of the present invention;

[0018] Figure 2 For the present invention Figure 1 A schematic diagram of the structure enlargement in the middle;

[0019] Figure 3 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the connection assembly of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of the buffer assembly of the present invention;

[0022] Figure 6 It is a cross-sectional view of the structure of the interception component of the present invention;

[0023] Figure 7 This is a schematic diagram of the cross plate structure of the present invention;

[0024] Figure 8 This is an exploded view of the buffer assembly structure of the present invention;

[0025] Fig. 9 This is a schematic diagram of the groove ring structure of the present invention;

[0026] Fig.10 It is a schematic diagram of the structure of the cleaning component of the present invention.

[0027] In the figure: 1, valve body; 2, connecting assembly; 3, shutoff assembly; 4, buffer assembly; 5, adjustment assembly; 6, cleaning assembly; 11, round shell; 12, partition; 13, left chamber; 14, right chamber; 15, longitudinal chamber; 21, rubber pad; 22, metal wave ring; 23, connecting pipe; 24, first bolt; 31, piston block; 32, round hole; 33, round shaft; 34, groove ring; 35, cross plate; 36, ellipse Groove; 37, L-shaped rod; 41, piston plate; 42, first spring; 43, second spring; 44, fixed ring; 45, telescopic rod; 46, movable ring; 51, top cover; 52, threaded shell; 53, second bolt; 54, threaded rod; 55, turntable; 56, fixed block; 57, metal rod; 61, annular shell; 62, V-shaped spring piece; 63, trapezoidal block; 64, gear ring; 65, semicircular groove; 66, self-resetting baffle. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] like Figures 1 to 10 As shown, an embodiment of the present invention provides a self-sealing anti-leakage valve, including a valve body 1, both sides of the valve body 1 are fixedly connected with a connecting assembly 2, and also includes a linkage buffer valve structure, which includes a buffer assembly 4, the buffer assembly 4 is fixedly installed on the top inner side of the valve body 1, the top of the buffer assembly 4 is fixedly installed with an adjusting assembly 5, and the outer edge of the adjusting assembly 5 is fixedly sleeved with a cleaning assembly 6;

[0030] The shut-off assembly 3 is movably plugged into the middle of the buffer assembly 4. The shut-off assembly 3 includes a piston block 31. Four circular holes 32 are formed around the bottom outer edge of the piston block 31. A circular shaft 33 is installed through the interior of the piston block 31. A cross plate 35 is fixedly connected to the bottom end of the circular shaft 33. A groove ring 34 is fixedly installed on the top of the circular shaft 33. The cross plate 35 is provided with four elliptical grooves 36. L-shaped rods 37 are movably connected in the four elliptical grooves 36. The four L-shaped rods 37 are plugged into the four circular holes 32.

[0031] When the valve is closed, the turntable 55 is rotated clockwise, and the turntable 55 drives the piston block 31 to move downward. When the piston block 31 reaches the gap of the partition 12 and then continues to move downward, it will encounter the pressure of the water flow in the right chamber 14, forming a water hammer effect. At this time, the three metal rods 57 will also contact the groove ring 34. The three metal rods 57 will move clockwise downward in the groove of the groove ring 34. The L-shaped rod 37 will be pushed out of the circular hole 32 under the clockwise push of the cross plate 35 and the elliptical groove 36. The shape of the L-shaped rod 37 is a conical cross-section. When the L-shaped rod 37 continues to extend close to the bottom surface of the partition 12, it will provide an additional downward extension force to the piston block 31, which can help the piston block 31 to completely fit and close the gap at the partition 12.

[0032] The valve body 1 includes a round shell 11, and a partition 12 is fixedly installed on the inner wall of the round shell 11. The partition 12 is a straight-line stepped structure, which divides the round shell 11 from left to right into a left chamber 13, a longitudinal chamber 15 and a right chamber 14. The left chamber 13 is a water inlet area, and the right chamber 14 is a water outlet area.

[0033] The interior of the round shell 11 is divided into a left chamber 13, a longitudinal chamber 15 and a right chamber 14 by a partition 12. This design helps to optimize the flow path of the fluid inside the valve body 1. The clear division of the water inlet area and the water outlet area can reduce the chaotic flow of the fluid in the valve body 1, thereby improving the efficiency of fluid transmission;

[0034] The connection assembly 2 includes two rubber pads 21, which are fixedly mounted on the left and right sides of the round shell 11. Metal wave rings 22 are fixedly mounted inside the two rubber pads 21, and connecting pipes 23 are fixedly mounted outside the two rubber pads 21. The interface ends of the left and right connecting pipes 23 are both plugged with a plurality of first bolts 24.

[0035] The right chamber 14 and the connecting pipe 23 are locked by the first bolt 24. The rubber pad 21 installed therein can prevent water leakage at the joint, and a metal wave ring 22 is installed inside the rubber pad 21. Compared with the traditional gasket, the metal wave ring 22 improves the longitudinal strength and can improve the service life when the longitudinal pressure of the water flow changes;

[0036] The buffer assembly 4 includes a piston plate 41, which is movably clamped on the inner wall of the longitudinal chamber 15. A plurality of hemispherical holes are etched on the bottom of the piston plate 41. A first spring 42 is fixedly connected to the top of the piston plate 41, and a second spring 43 is fixedly connected to the inner side of the first spring 42. A fixed ring 44 is elastically connected to the top of the first spring 42, and a movable ring 46 is elastically connected to the top of the second spring 43. A plurality of telescopic rods 45 are movably hinged at the groove of the movable ring 46, and the telescopic ends of the plurality of telescopic rods 45 are all movably hinged at the groove of the fixed ring 44. The diameter of the first spring 42 is greater than the diameter of the second spring 43, and the longitudinal height of the first spring 42 is lower than the longitudinal height of the second spring 43. The movable ring 46 is located above the fixed ring 44.

[0037] When the piston block 31 is just opened, the water flow in the left chamber 13 will quickly spray into the longitudinal chamber 15 and the right chamber 14 through the slit, and the longitudinal piston plate 41 will be stressed, first compressing the second spring 43, and then compressing the first spring 42. During the compression process, the movable ring 46 will also rotate and retract in the groove of the fixed ring 44 under the traction of the multiple telescopic rods 45, so that the first spring 42 and the second spring 43 are linked to form a whole. When the gap between the piston block 31 and the round shell 11 continues to expand, the pressure of the water flow in the longitudinal chamber 15 gradually decreases. At this time, the first spring 42 is reset first, and then the second spring 43 is pulled to reset through the cooperation of the fixed ring 44, the telescopic rod 45 and the movable ring 46, so as to achieve rapid reset;

[0038] The adjusting assembly 5 comprises a top cover 51, a threaded shell 52 is fixedly installed on the top of the top cover 51, the middle and lower part of the threaded shell 52 is inserted into the longitudinal chamber 15, a plurality of second bolts 53 are inserted into the top of the threaded shell 52, the threaded shell 52 and the top cover 51 are locked at the top of the longitudinal chamber 15 by the plurality of second bolts 53, a threaded rod 54 is inserted into the internal thread of the threaded shell 52, the bottom of the threaded rod 54 is fixedly connected to the piston block 31, a turntable 55 is fixedly connected to the top of the threaded rod 54, the threaded rod 54 is installed through the fixed ring 44, the movable ring 46 and the piston plate 41, three fixed blocks 56 are fixedly installed at the connecting rod of the turntable 55, the inner sides of the three fixed blocks 56 are fixedly connected with metal rods 57, and the other ends of the three metal rods 57 are movably clamped in the groove ring 34;

[0039] When water needs to be passed, the turntable 55 is rotated counterclockwise, and the turntable 55 drives the threaded rod 54 to move upward on the threaded shell 52, thereby driving the entire piston block 31 to move upward. When the turntable 55 starts to rotate counterclockwise, it will move upward counterclockwise in the groove of the groove ring 34 through the three metal rods 57. When the valve needs to be closed, the turntable 55 is rotated clockwise, and the turntable 55 will drive the piston block 31 to move downward;

[0040] Among them, the cleaning component 6 includes an annular shell 61, which is fixedly installed on the top of the threaded shell 52. Three V-shaped spring pieces 62 are installed around the inside of the annular shell 61. The inner sides of the three V-shaped spring pieces 62 are fixedly connected with trapezoidal blocks 63. A gear ring 64 is rotatably installed inside the annular shell 61. The inner wall of the gear ring 64 is provided with a threaded groove and is threadedly connected to the threaded rod 54. The three trapezoidal blocks 63 are all in contact with the protruding teeth of the gear ring 64. A plurality of semicircular grooves 65 are provided around the gear ring 64. Self-resetting baffles 66 are rotatably installed in the plurality of semicircular grooves 65. The plurality of self-resetting baffles 66 are composed of torsion springs and baffles.

[0041] When the threaded rod 54 rotates counterclockwise, debris in its threaded area will be rotated and cleaned in the toothed ring 64 with a threaded groove. After the impurities enter the semicircular groove 65 along the edge of the self-resetting baffle 66, they will reset and close again. When the self-resetting baffle 66 rotates counterclockwise, it will push the trapezoidal block 63 to be compressed along the supporting direction of the V-shaped spring piece 62 and then reset, forming a ratchet structure that can only rotate clockwise, ensuring one-way cleaning only when rotating counterclockwise.

[0042] Working principle:

[0043] When using the device, first connect the two ends of the pipes to be connected, and lock the right chamber 14 and the connecting pipe 23 by the first bolt 24. The rubber pad 21 installed therein can prevent water from leaking at the joint, and a metal wave ring 22 is installed in the rubber pad 21. Compared with the traditional gasket, the metal wave ring 22 improves the longitudinal strength, and can improve the service life when the longitudinal pressure of the water flow changes;

[0044] After installation, the left chamber 13 in the valve body 1 is the water inlet area. When water needs to be passed, the turntable 55 is rotated counterclockwise, and the turntable 55 drives the threaded rod 54 to move upward on the threaded shell 52, thereby driving the entire piston block 31 to move upward. When the turntable 55 starts to rotate counterclockwise, the three metal rods 57 will move upward counterclockwise in the groove of the groove ring 34. At this time, the round shaft 33 will also drive the cross plate 35 to rotate counterclockwise, and the L-shaped rod 37 in the four elliptical grooves 36 will shrink in the round hole 32. After the piston block 31 is away from the partition 12, a narrow gap for water to pass through will be exposed. As the second bolt 53 gradually drives the piston block 31 to move upward, the gap gradually expands.

[0045] When the piston block 31 is just opened, the water flow in the left chamber 13 will quickly spray into the longitudinal chamber 15 and the right chamber 14 through the slit, and the longitudinal piston plate 41 will be stressed, first compressing the second spring 43, and then compressing the first spring 42. During the compression process, the movable ring 46 will also rotate and retract in the groove of the fixed ring 44 under the traction of the multiple telescopic rods 45, so that the first spring 42 and the second spring 43 are linked to form a whole. When the gap between the piston block 31 and the round shell 11 continues to expand, the pressure of the water flow in the longitudinal chamber 15 gradually decreases. At this time, the first spring 42 is reset first, and then the second spring 43 is pulled to reset through the cooperation of the fixed ring 44, the telescopic rod 45 and the movable ring 46, so as to achieve rapid reset;

[0046] When the valve needs to be closed, the turntable 55 is rotated clockwise, and the turntable 55 drives the piston block 31 to move downward. When the piston block 31 reaches the gap of the partition 12 and then continues to move downward, it will encounter the pressure of the water flow in the right chamber 14, forming a water hammer effect. At this time, the three metal rods 57 will also contact the groove ring 34. The three metal rods 57 will move clockwise downward in the groove of the groove ring 34. The L-shaped rod 37 will be pushed out of the circular hole 32 under the clockwise push of the cross plate 35 and the elliptical groove 36. The shape of the L-shaped rod 37 is a conical cross-section surface. When the L-shaped rod 37 continues to extend close to the bottom surface of the partition 12, it will provide an additional downward extension force to the piston block 31, which can help the piston block 31 to completely fit and close the gap at the partition 12.

[0047] When the threaded rod 54 rotates counterclockwise, the debris in its threaded area will be rotated and cleaned in the toothed ring 64 with a threaded groove. After the impurities enter the semicircular groove 65 along the edge of the self-resetting baffle 66, they will reset and close again. When the self-resetting baffle 66 rotates counterclockwise, it will push the trapezoidal block 63 to be compressed along the supporting direction of the V-shaped spring piece 62 and then reset, forming a ratchet structure that can only rotate clockwise, ensuring one-way cleaning only when rotating counterclockwise, and the workflow ends here.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-sealing anti-leakage valve, comprising a valve body (1), characterized in that: The valve body (1) is fixedly connected to connection components (2) on both sides, and further comprises: A linked buffer valve structure, comprising a buffer component (4), the buffer component (4) being fixedly mounted on the inner side of the top of the valve body (1), an adjusting component (5) being fixedly mounted on the top of the buffer component (4), and a cleaning component (6) being fixedly sleeved on the outer edge of the adjusting component (5); A shut-off assembly (3), the shut-off assembly (3) being movably plugged into the middle of the buffer assembly (4), the shut-off assembly (3) comprising a piston block (31), the bottom outer edge of the piston block (31) being provided with four circular holes (32), a circular shaft (33) being installed through the interior of the piston block (31), a cross plate (35) being fixedly connected to the bottom end of the circular shaft (33), a groove ring (34) being fixedly installed on the top of the circular shaft (33), the cross plate (35) being provided with four elliptical grooves (36), L-shaped rods (37) being movably plugged into the four elliptical grooves (36), and the four L-shaped rods (37) being plugged into the four circular holes (32); The valve body (1) comprises a round shell (11), the inner wall of which is fixedly mounted a partition (12), the partition (12) being a straight-line stepped structure, dividing the round shell (11) from left to right into a left chamber (13), a longitudinal chamber (15) and a right chamber (14), the left chamber (13) being a water inlet area, and the right chamber (14) being a water outlet area; The connection assembly (2) comprises two rubber pads (21), the two rubber pads (21) are fixedly mounted on the left and right sides of the circular shell (11), the interiors of the two rubber pads (21) are fixedly mounted with metal wave rings (22), the exteriors of the two rubber pads (21) are fixedly mounted with connecting pipes (23), and the interface ends of the left and right connecting pipes (23) are both plugged with a plurality of first bolts (24); The buffer assembly (4) comprises a piston plate (41), the piston plate (41) being movably clamped on the inner wall of the longitudinal chamber (15), a plurality of hemispherical holes being etched on the bottom of the piston plate (41), a first spring (42) being fixedly connected to the top of the piston plate (41), a second spring (43) being fixedly connected to the inner side of the first spring (42), a fixed ring (44) being elastically connected to the top of the first spring (42), a movable ring (46) being elastically connected to the top of the second spring (43), a plurality of telescopic rods (45) being movably hinged at the groove of the movable ring (46), and the telescopic ends of the plurality of telescopic rods (45) being movably hinged at the groove of the fixed ring (44); The diameter of the first spring (42) is greater than the diameter of the second spring (43), the longitudinal height of the first spring (42) is lower than the longitudinal height of the second spring (43), and the movable ring (46) is located above the fixed ring (44); The adjustment assembly (5) comprises a top cover (51), a threaded shell (52) is fixedly mounted on the top of the top cover (51), a lower middle portion of the threaded shell (52) is inserted into the longitudinal chamber (15), a plurality of second bolts (53) are inserted into the top of the threaded shell (52), the threaded shell (52) and the top cover (51) are locked at the top of the longitudinal chamber (15) by means of the plurality of second bolts (53), a threaded rod (54) is inserted into the internal thread of the threaded shell (52), and the threaded shell (52) is screwed to the top of the longitudinal chamber (15). The bottom of the threaded rod (54) is fixedly connected to the piston block (31), the top of the threaded rod (54) is fixedly connected to a rotating disk (55), the threaded rod (54) is installed through the fixed ring (44), the movable ring (46) and the piston plate (41), three fixed blocks (56) are fixedly installed at the connecting rod of the rotating disk (55), the inner sides of the three fixed blocks (56) are fixedly connected to metal rods (57), and the other ends of the three metal rods (57) are movably clamped in the groove ring (34); The cleaning assembly (6) comprises an annular shell (61), wherein the annular shell (61) is fixedly mounted on the top of the threaded shell (52), wherein three V-shaped spring pieces (62) are mounted around the inside of the annular shell (61), wherein the inner sides of the three V-shaped spring pieces (62) are fixedly connected with a trapezoidal block (63), wherein a gear ring (64) is rotatably mounted inside the annular shell (61), wherein the inner wall of the gear ring (64) is provided with a threaded groove and is threadedly connected with the threaded rod (54), wherein the three trapezoidal blocks (63) are in contact with the protruding teeth of the gear ring (64), wherein a plurality of semicircular grooves (65) are rotatably mounted with a self-resetting baffle plate (66), wherein the plurality of self-resetting baffle plates (66) are composed of a torsion spring and a baffle plate.

Images