Corrugated pipe sealing ball valve with anti-impact function

Abstract

The invention discloses a corrugated pipe sealing ball valve with an anti-impact function, and relates to the technical field of sealing ball valves.The sealing ball valve comprises a valve body, a ball body, a valve rod, a fixed corrugated pipe, a hand wheel, a connecting sleeve, a pressure dividing plate and a pressure buffering device, the ball body is arranged in the valve body and is in sliding connection with the valve body, and a mounting hole is formed in the valve body; the connecting sleeve is in flange connection with the mounting hole, the valve rod is arranged in the connecting sleeve and sequentially penetrates through the connecting sleeve and the mounting hole to be clamped with the ball body, the valve rod is sleeved with the fixed corrugated pipe, the hand wheel is in fastening connection with the valve rod, the pressure dividing plate is connected with the valve body, and the pressure buffering device is connected with the valve body.

Description

Technical Field

[0001] This invention relates to the field of sealing ball valve technology, specifically a bellows sealing ball valve with anti-impact function. Background Technology

[0002] In industrial pipeline systems such as petroleum, chemical, and water conservancy, rapid opening and closing of valves or sudden start-up and shutdown of pumps can easily trigger water hammer, resulting in strong pressure shock waves. These shocks can severely damage internal valve components, especially sealing areas. Although traditional bellows-sealed ball valves perform well in preventing leakage from the valve stem, their bellows section is highly sensitive to axial tensile stress. Once subjected to high-intensity impacts, it is prone to fatigue fracture or permanent deformation, ultimately leading to sealing failure.

[0003] Current common protection methods mostly rely on rigid structures or simple damping measures, lacking a buffer mechanism that can adaptively adjust according to the magnitude of the impact force. This deficiency makes it difficult for valves to balance effective protection and operational stability, especially under critical operating conditions, severely limiting their service life and overall reliability. Summary of the Invention

[0004] The purpose of this invention is to provide a bellows-sealed ball valve with anti-impact function to solve the problems raised in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A bellows-sealed ball valve with anti-impact function is disclosed. The sealed ball valve includes a valve body, a ball, a valve stem, a fixed bellows, a handwheel, a connecting sleeve, a pressure-distributing plate, and a pressure-relieving device. The ball is placed inside the valve body and is slidably connected to the valve body. The valve body has a mounting hole, and the connecting sleeve is flanged to the mounting hole. The valve stem is placed inside the connecting sleeve and passes through the connecting sleeve and the mounting hole in sequence to engage with the ball. The fixed bellows is sleeved on the valve stem. The handwheel is fastened to the valve stem. The pressure-distributing plate is connected to the valve body, and the pressure-relieving device is connected to the valve body.

[0007] The valve body serves as the primary mounting base for positioning other components. A connecting sleeve limits the valve stem's position. When water flows continuously through the valve body, a sudden turn of the handwheel rotates the valve stem, which in turn rotates the ball. This ball's rotation obstructs the water flow within the valve body, causing an impact. The ball connects to the valve stem, which in turn connects to a fixed bellows, transferring the impact force to the bellows. A pressure-reducing device buffers the impact on the bellows, while a pressure-distributing plate mitigates the impact of upstream water flow. The pressure-distributing plate and pressure-reducing device are symmetrically distributed on both sides of the valve body about the ball, ensuring that even when the downstream outlet is suddenly closed, they also mitigate the water flow impact.

[0008] Furthermore, the valve stem slides up and down along the vertical direction, the lower end of the fixed bellows is securely connected to the valve stem and remains sealed, and the upper end of the fixed bellows is securely connected to the connecting sleeve and remains sealed.

[0009] By rotating the handwheel, the valve stem moves up and down along the connecting sleeve, which in turn stretches or compresses the fixed bellows, causing it to fit tightly against the walls of the connecting sleeve and the valve body, thereby improving the sealing effect of the valve body.

[0010] Furthermore, the valve body is provided with a first mounting groove, a fixing spring is provided on the first mounting groove, a valve seat is provided on the first mounting groove, the fixing spring and the valve seat are fastened together, the end of the fixing spring away from the valve seat is fastened together with the first mounting groove, the valve body is provided with a valve seat, the valve seat and the valve body are slidably connected, the valve seat and the ball are slidably connected, and the valve seat is connected to the pressure relief device.

[0011] The first mounting groove provides an installation position for the valve seat, and the valve seat also provides an installation position for the pressure relief device. At the same time, the sliding between the valve seat and the valve body is only a small range of sliding, allowing water to flow into the first mounting groove through the sliding of the valve seat and the valve body. The valve seat and the ball are slidably connected, and the valve seat seals the ball while the ball can rotate. The fixed spring provides a certain tension to the valve seat, allowing the valve seat to return to its original position after sliding.

[0012] Furthermore, the valve seat is provided with a second mounting groove and a first mounting cavity, the valve body is provided with a third mounting groove and a fixed air passage, and the connecting sleeve is provided with a connecting air passage. The second mounting groove and the first mounting cavity are connected, the first mounting cavity and the third mounting groove are connected, the third mounting groove and the fixed air passage are connected, the fixed air passage and the connecting air passage are connected, the fixed air passage is provided with a fixed through hole, the connecting air passage is provided with a connecting through hole, the second mounting groove is connected to a pressure relief device, the first mounting cavity is connected to a pressure relief device, the third mounting groove is connected to a pressure relief device, the fixed through hole is connected to a pressure relief device, and the connecting through hole is connected to a pressure relief device. There are several fixed through holes and several connecting through holes.

[0013] The second mounting slot, the first mounting cavity, the third mounting slot, the fixed air passage, and the connecting air passage are connected in sequence, so that the pressure relief device can play different buffering roles on the fixed bellows according to the impact force of the water flow. At the same time, the second mounting slot, the first mounting cavity, the third mounting slot, the fixed air passage, the fixed through hole, and the connecting through hole provide the installation position and buffering conditions for the pressure relief device.

[0014] Furthermore, the pressure relief device includes a pressure relief baffle, a connecting plate, a mounting plate, a compression plate, and a buffer airbag. The pressure relief baffle and the connecting plate are fastened together, the connecting plate and the mounting plate are fastened together, the mounting plate and the compression plate are fastened together, the pressure relief baffle is placed on the second mounting groove, the pressure relief baffle and the second mounting groove are slidably connected, the mounting plate is placed in the first mounting cavity, the compression plate is placed in the third mounting groove, and there are several buffer airbags. The input ends of the several buffer airbags are respectively connected to the fixed through hole and the connecting through hole.

[0015] When the water flow impacts the sphere, it simultaneously impacts the pressure-reducing baffle. This impact causes the baffle to move, which in turn moves the connecting plate, which in turn moves the mounting plate, which in turn moves the extrusion plate. The extrusion plate compresses the gas in the third mounting slot, forcing it into the fixed and connecting air passages. This increases the pressure in the fixed and connecting air passages, allowing the gas to enter the buffer airbag and inflate it. As the water flow passes through the buffer airbag, the increased impact force transmitted from the sphere to the fixed bellows is transferred to the flexible buffer airbag, reducing the impact on the fixed bellows. The greater the impact force of the water flow, the higher the pressure in the buffer airbag, resulting in better cushioning. When the water flow acts on the pressure-reducing baffle, the baffle also shares some of the impact, further mitigating the impact on the fixed bellows.

[0016] Furthermore, the width of the extrusion plate is greater than the width of the third mounting groove, and a reset spring is provided in the first mounting cavity. The reset spring and the mounting plate are fastened together, and the end of the reset spring away from the mounting plate is fastened together with the first mounting cavity.

[0017] The width of the extrusion plate is greater than the width of the third mounting groove, which prevents the gas in the third mounting groove from flowing into the first mounting cavity. This creates a sealed space consisting of the third mounting groove, the fixed air passage, the connecting air passage, and the buffer airbag. As the extrusion plate moves within the third mounting groove, the buffer airbag can collide or shrink. A reset spring is provided to reset other components when the impact ends.

[0018] Furthermore, the valve body is also provided with a first pressure dividing channel and a second pressure dividing channel. The first pressure dividing channel is connected to the first mounting groove, the second pressure dividing channel is connected to the first pressure dividing channel, and the second pressure dividing channel is connected to the valve body.

[0019] The second pressure-distributing channels are symmetrically distributed on both sides of the first pressure-distributing channel, providing a pressure-distributing foundation for the pressure-distributing plate through the second and first pressure-distributing channels.

[0020] Furthermore, the second pressure-dividing flow channel is provided with a pressure-dividing mounting groove, and a pressure-dividing plate is provided on the pressure-dividing mounting groove. The pressure-dividing plate and the pressure-dividing mounting groove are hinged together, and the pressure-dividing plate can only rotate toward the valve body.

[0021] When the water flow begins to impact the sphere, it also impacts the pressure-reducing baffle, causing the baffle to slide along the second mounting groove. This creates a gap between the baffle and the first mounting groove, allowing water to enter the first mounting groove through the gap. The water then flows through the first pressure-reducing channel to the second pressure-reducing channel on the opposite side, pushing the pressure-reducing plate open. This allows the water to flow from the impacting side to the other side, thus relieving the pressure on the impacted side. Simultaneously, the pressure-reducing plate can only rotate towards the inside of the valve body, ensuring that it does not open when the water flow is stable. This prevents disruption of the water flow within the valve body, allowing the water to flow at high speed within the valve body.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. A pressure-reducing device, consisting of a pressure-reducing baffle, an airway network, and a buffer airbag, converts the kinetic energy of fluid impact into pressure potential energy, which is then absorbed by the elastic deformation of the airbag. This mechanism automatically adjusts the buffering strength according to the impact force (the greater the impact, the higher the air pressure, the greater the airbag expansion, and the stronger the buffering effect), achieving intelligent gradient response and avoiding the overload risk of traditional rigid protection.

[0024] 2. Through the bypass system consisting of valve seat, mounting groove and pressure distribution channel, when subjected to impact, it can actively guide part of the high pressure fluid to be symmetrically diverted to the other side of the valve body, effectively reducing the net pressure difference acting on the ball and valve seat, reducing the impact load from the source, and forming a synergistic protection with the pressure relief device.

[0025] 3. A multi-layered protection system comprising flow diversion (pressure plate and flow channel), energy conversion (pressure relief device), and flexible absorption (buffer bladder). This system not only effectively protects the fragile bellows from tensile damage but also reduces the load on critical pressure-bearing components such as the valve seat and ball, thereby comprehensively improving the valve's reliability and service life under harsh operating conditions. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the valve body structure of the present invention;

[0028] Figure 3 for Figure 2 AA-direction cross-sectional view;

[0029] Figure 4 for Figure 2 BB-direction cross-sectional view;

[0030] Figure 5 This is a schematic diagram of the spherical structure of the present invention;

[0031] Figure 6 This is a schematic diagram of the fixed bellows structure of the present invention;

[0032] Figure 7 for Figure 6 A magnified view of a portion of C;

[0033] Figure 8 for Figure 6 A partial D-magnified view.

[0034] In the diagram: 1. Valve body; 11. Mounting hole; 12. First mounting groove; 13. Fixing spring; 14. Third mounting groove; 15. Fixing air passage; 16. First pressure dividing flow passage; 17. Second pressure dividing flow passage; 18. Pressure dividing mounting groove; 19. Fixing through hole; 2. Ball; 3. Valve stem; 4. Fixing bellows; 5. Handwheel; 6. Connecting sleeve; 61. Connecting air passage; 62. Connecting through hole; 7. Pressure dividing plate; 8. Pressure easing device; 81. Pressure easing baffle; 82. Connecting plate; 83. Mounting plate; 84. Squeezing plate; 85. Buffer airbag; 86. Return spring; 9. Valve seat; 91. Second mounting groove; 92. First mounting cavity. Detailed Implementation

[0035] 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.

[0036] Example: Figures 1-8As shown, the present invention provides a bellows-sealed ball valve with anti-impact function. The sealing ball valve includes a valve body 1, a ball 2, a valve stem 3, a fixed bellows 4, a handwheel 5, a connecting sleeve 6, a pressure-distributing plate 7, and a pressure-relieving device 8. The ball 2 is placed inside the valve body 1, and the ball 2 and the valve body 1 are slidably connected. The valve body 1 is provided with a mounting hole 11. The connecting sleeve 6 is flange-connected to the mounting hole 11. The valve stem 3 is placed inside the connecting sleeve 6. The valve stem 3 passes through the connecting sleeve 6 and the mounting hole 11 in sequence and is engaged with the ball 2. The fixed bellows 4 is sleeved on the valve stem 3. The handwheel 5 is fastened to the valve stem 3. The pressure-distributing plate 7 is connected to the valve body 1. The pressure-relieving device 8 is connected to the valve body 1.

[0037] The valve body 1 serves as the main mounting base for positioning other components. The valve stem 3 is limited by the connecting sleeve 6. When water flows continuously from inside the valve body 1, the handwheel 5 is suddenly turned, causing the valve stem 3 to rotate. The rotation of the valve stem 3 causes the ball 2 to rotate, blocking the water flow inside the valve body 1 and causing the water flow to impact the ball 2. The ball 2 is connected to the valve stem 3, and the valve stem 3 is connected to the fixed bellows 4, so the impact force on the ball 2 is transmitted to the fixed bellows 4. The pressure relief device 8 buffers the impact on the fixed bellows 4, and the pressure dividing plate 7 alleviates the impact of the water flow upstream of the valve body 1 on the ball 2. The pressure dividing plate 7 and the pressure relief device 8 are symmetrically distributed on both sides of the valve body 1 about the ball 2, so that when the downstream outlet is suddenly closed, the pressure relief device 8 and the pressure dividing plate 7 can also alleviate the impact of the water flow.

[0038] like Figures 5-6 As shown, the valve stem 3 slides up and down along the vertical direction, the lower end of the fixed bellows 4 is tightly connected to the valve stem 3 and keeps sealed, and the upper end of the fixed bellows 4 is tightly connected to the connecting sleeve 6 and keeps sealed.

[0039] By rotating the handwheel 5, the valve stem 3 moves up and down along the connecting sleeve 6, which in turn stretches or compresses the fixed bellows 4, making the fixed bellows 4 fit tightly against the wall of the connecting sleeve 6 and the valve body 1, thereby improving the sealing effect of the valve body 1.

[0040] like Figures 6-8 As shown, the valve body 1 is provided with a first mounting groove 12, a fixing spring 13 is provided on the first mounting groove 12, a valve seat 9 is provided on the first mounting groove 12, the fixing spring 13 and the valve seat 9 are fastened together, the end of the fixing spring 13 away from the valve seat 9 is fastened together with the first mounting groove 12, the valve body 1 is provided with a valve seat 9, the valve seat 9 and the valve body 1 are slidably connected, the valve seat 9 and the ball 2 are slidably connected, and the valve seat 9 is connected to the pressure relief device 8.

[0041] The first mounting groove 12 provides an installation position for the valve seat 9, and the valve seat 9 provides an installation position for the pressure relief device 8. At the same time, the sliding between the valve seat 9 and the valve body 1 is only a small range of sliding, so that the water flow can enter the first mounting groove 12 through the sliding of the valve seat 9 and the valve body 1. The valve seat 9 and the ball 2 are slidably connected. The valve seat 9 seals the ball 2 while the ball 2 can rotate. The fixed spring 13 provides a certain tension to the valve seat 9, so that the valve seat 9 can be reset after sliding.

[0042] like Figures 6-8 As shown, the valve seat 9 is provided with a second mounting groove 91 and a first mounting cavity 92, the valve body 1 is provided with a third mounting groove 14 and a fixed air passage 15, and the connecting sleeve 6 is provided with a connecting air passage 61. The second mounting groove 91 and the first mounting cavity 92 are connected, the first mounting cavity 92 and the third mounting groove 14 are connected, the third mounting groove 14 and the fixed air passage 15 are connected, the fixed air passage 15 and the connecting air passage 61 are connected, the fixed air passage 15 is provided with a fixed through hole 19, and the connecting air passage 61 is provided with a connecting through hole 62. The second mounting groove 91 is connected to the pressure relief device 8, the first mounting cavity 92 is connected to the pressure relief device 8, the third mounting groove 14 is connected to the pressure relief device 8, the fixed through hole 19 is connected to the pressure relief device 8, and the connecting through hole 62 is connected to the pressure relief device 8. There are several fixed through holes 19 and several connecting through holes 62.

[0043] The second mounting groove 91, the first mounting cavity 92, the third mounting groove 14, the fixed air passage 15, and the connecting air passage 61 are connected in sequence, so that the pressure relief device 8 can play different buffering roles on the fixed corrugated pipe 4 according to the impact force of the water flow. At the same time, the second mounting groove 91, the first mounting cavity 92, the third mounting groove 14, the fixed air passage 15, the fixed through hole 19, and the connecting through hole 62 provide the installation position and buffering conditions for the pressure relief device 8.

[0044] like Figures 6-8 As shown, the pressure relief device 8 includes a pressure relief baffle 81, a connecting plate 82, a mounting plate 83, a compression plate 84, and a buffer airbag 85. The pressure relief baffle 81 and the connecting plate 82 are fastened together, the connecting plate 82 and the mounting plate 83 are fastened together, the mounting plate 83 and the compression plate 84 are fastened together, the pressure relief baffle 81 is placed on the second mounting groove 91, and the pressure relief baffle 81 and the second mounting groove 91 are slidably connected. The mounting plate 83 is placed in the first mounting cavity 92, the compression plate 84 is placed in the third mounting groove 14, and there are several buffer airbags 85. The input ends of the several buffer airbags 85 are respectively connected to the fixed through hole 19 and the connecting through hole 62.

[0045] When the water flow impacts the sphere 2, it also impacts the pressure-reducing baffle 81. This impact causes the baffle 81 to move, which in turn moves the connecting plate 82, which in turn moves the mounting plate 83, which in turn moves the compression plate 84. This compression plate 84 compresses the gas in the third mounting groove 14, forcing it into the fixed air passage 15 and the connecting air passage 61. The increased internal pressure causes gas to enter the buffer airbag 85, causing it to expand. When water flows through the buffer airbag 85, the impact force transmitted from the sphere 2 to the fixed bellows 4 is transferred to the flexible buffer airbag 85, thus reducing the impact on the fixed bellows 4. At the same time, the greater the impact force of the water flow, the greater the pressure on the buffer airbag 85, and the better the buffering effect of the buffer airbag 85. When the water flow acts on the pressure relief baffle 81, the pressure relief baffle 81 also shares part of the impact of the water flow, further mitigating the impact of the water flow on the fixed bellows 4.

[0046] like Figure 7 As shown, the width of the extrusion plate 84 is greater than the width of the third mounting groove 14. A reset spring 86 is provided in the first mounting cavity 92. The reset spring 86 is fastened to the mounting plate 83. The end of the reset spring 86 away from the mounting plate 83 is fastened to the first mounting cavity 92.

[0047] The width of the extrusion plate 84 is greater than the width of the third mounting groove 14, which prevents the gas in the third mounting groove 14 from flowing into the first mounting cavity 92. This creates a sealed space consisting of the third mounting groove 14, the fixed air passage 15, the connecting air passage 61, and the buffer airbag 85. This allows the buffer airbag 85 to collide or shrink when the extrusion plate 84 moves within the third mounting groove 14. A reset spring 86 is provided to reset other components when the impact ends.

[0048] As shown in Figure 1, the valve body 1 is also provided with a first pressure dividing channel 16 and a second pressure dividing channel 17. The first pressure dividing channel 16 is connected to the first mounting groove 12, the second pressure dividing channel 17 is connected to the first pressure dividing channel 16, and the second pressure dividing channel 17 is connected to the valve body 1.

[0049] The second pressure-dividing channel 17 is symmetrically distributed on both sides of the first pressure-dividing channel 16, and provides a pressure-dividing foundation for the pressure-dividing plate 7 through the second pressure-dividing channel 17 and the first pressure-dividing channel 16.

[0050] like Figures 1-4 As shown, the second pressure dividing channel 17 is provided with a pressure dividing mounting groove 18, and a pressure dividing plate 7 is provided on the pressure dividing mounting groove 18. The pressure dividing plate 7 and the pressure dividing mounting groove 18 are hinged together, and the pressure dividing plate 7 can only rotate toward the inside of the valve body 1.

[0051] When the water flow begins to impact the ball 2, it also impacts the pressure-reducing baffle 81, causing the pressure-reducing baffle 81 to slide along the second mounting groove 91. This creates a gap between the pressure-reducing baffle 81 and the first mounting groove 12, allowing the water in the valve body 1 to enter the first mounting groove 12 through the gap. The water then flows through the first pressure-reducing channel 16 to the second pressure-reducing channel 17 on the opposite side, pushing the pressure-reducing plate 7 to open. This allows the water to flow from the impacting side to the other side, thus relieving the pressure on the impacted side. At the same time, the pressure-reducing plate 7 can only rotate towards the inside of the valve body 1, ensuring that it does not open when the water flow is stable. This prevents disruption of the water flow within the valve body 1 and allows the water to flow at high speed within the valve body 1.

[0052] The working principle of this invention: The valve body 1 serves as the main mounting base for positioning other components. The valve stem 3 is limited by the connecting sleeve 6. When water flows continuously from the valve body 1, a sudden rotation of the handwheel 5 causes the valve stem 3 to rotate, which in turn rotates the ball 2. The rotation of the ball 2 obstructs the water flow within the valve body 1, causing the water to impact the ball 2. The ball 2 is connected to the valve stem 3, and the valve stem 3 is connected to the fixed bellows 4, allowing the impact force on the ball 2 to be transmitted to the fixed bellows 4. Simultaneously, the water flow also impacts the pressure-reducing baffle 81, causing it to move. This movement of the pressure-reducing baffle 81 moves the connecting plate 82, which in turn moves the mounting plate 83. The mounting plate 83 then moves the compression plate 84, which compresses the gas in the third mounting groove 14, thereby causing the third mounting groove 14 to... The gas in the tank 14 is compressed into the fixed air passage 15 and the connecting air passage 61, thereby increasing the pressure in the fixed air passage 15 and the connecting air passage 61. This causes the gas to enter the buffer airbag 85, causing the buffer airbag 85 to expand. When the water flows through the buffer airbag 85 and collides with it, the impact force transmitted from the sphere 2 to the fixed bellows 4 is transferred to the flexible buffer airbag 85, thus reducing the impact on the fixed bellows 4. At the same time, the impact force of the water flow is also greater than that of the buffer airbag 85. The greater the pressure, the better the buffering effect of the buffer airbag 85. When the water flow acts on the pressure relief baffle 81, the pressure relief baffle 81 also shares part of the water flow impact, better mitigating the impact of the water flow on the fixed bellows 4. At the same time, the pressure relief plate 7 alleviates the impact of the water flow upstream of the valve body 1 on the ball 2. Meanwhile, the pressure relief plate 7 and the pressure relief device 8 are symmetrically distributed on both sides of the valve body 1 about the ball 2, so that when the downstream outlet is suddenly closed, the pressure relief device 8 and the pressure relief plate 7 can also alleviate the impact of the water flow.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A corrugated tube seal ball valve with impact protection function, characterized in that: The sealing ball valve comprises a valve body (1), a ball body (2), a valve rod (3), a fixed bellow (4), a hand wheel (5), a connecting sleeve (6), a pressure distribution plate (7) and a pressure relief device (8), the ball body (2) is arranged in the valve body (1), the ball body (2) and the valve body (1) are slidingly connected, the valve body (1) is provided with a mounting hole (11), the connecting sleeve (6) and the mounting hole (11) are flange-connected, the valve rod (3) is arranged in the connecting sleeve (6), the valve rod (3) passes through the connecting sleeve (6), the mounting hole (11) and the ball body (2) in sequence and is clamped, the fixed bellow (4) is sleeved on the valve rod (3), the hand wheel (5) and the valve rod (3) are tightly connected, the pressure distribution plate (7) and the valve body (1) are connected, and the pressure relief device (8) and the valve body (1) are connected.

2. The corrugated tube sealing ball valve with anti-impact function according to claim 1, characterized in that: The valve rod (3) slides up and down along the vertical direction, the lower end of the fixed bellow (4) is tightly connected with the valve rod (3) and keeps sealing, and the upper end of the fixed bellow (4) is tightly connected with the connecting sleeve (6) and keeps sealing.

3. The corrugated tube sealing ball valve with anti-impact function according to claim 1, characterized in that: The valve body (1) is provided with a first mounting groove (12), the first mounting groove (12) is provided with a fixed spring (13), the first mounting groove (12) is provided with a valve seat (9), the fixed spring (13) and the valve seat (9) are tightly connected, the fixed spring (13) is tightly connected with the first mounting groove (12) at the end away from the valve seat (9), the valve body (1) is provided with the valve seat (9), the valve seat (9) and the valve body (1) are slidingly connected, the valve seat (9) and the ball body (2) are slidingly connected, and the valve seat (9) is connected with the pressure relief device (8).

4. The corrugated tube sealing ball valve with anti-impact function according to claim 3, characterized in that: The valve seat (9) is provided with a second mounting groove (91) and a first mounting cavity (92), the valve body (1) is provided with a third mounting groove (14) and a fixed air channel (15), the connecting sleeve (6) is provided with a connecting air channel (61), the second mounting groove (91) and the first mounting cavity (92) are communicated, the first mounting cavity (92) and the third mounting groove (14) are communicated, the third mounting groove (14) and the fixed air channel (15) are communicated, the fixed air channel (15) and the connecting air channel (61) are communicated, the fixed air channel (15) is provided with fixed through holes (19), the connecting air channel (61) is provided with connecting through holes (62), the second mounting groove (91) is connected with the pressure relief device (8), the first mounting cavity (92) is connected with the pressure relief device (8), the third mounting groove (14) is connected with the pressure relief device (8), the fixed through holes (19) are connected with the pressure relief device (8), the connecting through holes (62) are connected with the pressure relief device (8), there are a plurality of fixed through holes (19), and there are a plurality of connecting through holes (62).

5. The corrugated tube sealing ball valve with anti-impact function according to claim 4, characterized in that: The slow pressure device (8) comprises a slow pressure baffle (81), a connecting plate (82), a mounting plate (83), a extrusion plate (84) and a buffer air bag (85), the slow pressure baffle (81) and the connecting plate (82) are fastened and connected, the connecting plate (82) and the mounting plate (83) are fastened and connected, the mounting plate (83) and the extrusion plate (84) are fastened and connected, the slow pressure baffle (81) is arranged on the second mounting groove (91), the slow pressure baffle (81) and the second mounting groove (91) are slidably connected, the mounting plate (83) is arranged in the first mounting cavity (92), the extrusion plate (84) is arranged in the third mounting groove (14), the buffer air bag (85) has a plurality of input ends, and the plurality of buffer air bags (85) are connected with the fixed through hole (19) and the connecting through hole (62).

6. The corrugated tube sealing ball valve with anti-impact function according to claim 5, characterized in that: The extrusion plate (84) is wider than the third mounting cavity (14), the first mounting cavity (92) is provided with a reset spring (86), the reset spring (86) and the mounting plate (83) are fastened and connected, and the reset spring (86) is fastened and connected with the first mounting cavity (92) away from the mounting plate (83).

7. The bellow sealed ball valve with anti-impact function according to claim 1, characterized in that: The valve body (1) is further provided with a first partial pressure flow channel (16) and a second partial pressure flow channel (17), the first partial pressure flow channel (16) and the first mounting groove (12) are communicated, the second partial pressure flow channel (17) and the first partial pressure flow channel (16) are communicated, and the second partial pressure flow channel (17) and the valve body (1) are communicated.

8. The bellow sealed ball valve with anti-impact function according to claim 7, characterized in that: The second partial pressure flow channel (17) is provided with a partial pressure mounting groove (18), the partial pressure mounting groove (18) is provided with a partial pressure plate (7), the partial pressure plate (7) and the partial pressure mounting groove (18) are hinged, and the partial pressure plate (7) can only rotate towards the valve body (1).

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