A double-seal irregular ball valve

Abstract

This invention specifically relates to a double-sealed irregular-shaped ball valve, comprising a valve body, a valve stem rotation and lifting mechanism movably mounted on the top of the valve body, and a connector located at the bottom of the valve stem rotation and lifting mechanism. The irregular-shaped ball valve disc movably mounted within the valve body has a notch at the top for tensioning, a slotted plate at the bottom for easier deformation, and a side opening in the middle for rapid water flow switching. This results in an overall C-shaped irregular-shaped ball structure, giving it strong opening and closing capabilities. When the connector moves upward, the irregular-shaped ball valve disc contracts and deforms towards the center on both sides, and two inclined holes close the notch at the top of the irregular-shaped ball valve disc, thereby separating the second sealing gasket from the first sealing gasket. During the entire valve rotation and opening / closing process, there is no friction between the second sealing gasket of the irregular-shaped ball valve disc and the first sealing gasket of the connecting pipe, resulting in a long service life.

Description

Technical Field

[0001] This invention specifically relates to a double-sealed irregular-shaped ball valve, and pertains to the field of valve technology. Background Art

[0002] Valves, including ball valves and butterfly valves, are mainly composed of parts such as valve body, valve cover, valve disc, valve stem, and valve seat. For example, a gate valve independently developed and applied for by our company with Chinese patent announcement number CN220816571U includes a valve body with a flow guide port and a valve plate that can move relative to the flow guide port to close or open the flow guide port. When the gate valve is closed to prevent material from flowing through the valve body, the valve plate will move in the direction of the flow guide port and abut against the rear end of the flow guide ring to close the flow guide port. At the same time, the elastic component moves the flow guide ring to one side of the valve plate, so that there is no gap between the valve plate and the flow guide ring, and the material cannot flow out from between the valve plate and the flow guide ring, thereby achieving better sealing. The elastic component can make the flow guide port adapt to the position change of the valve plate, so that the valve plate and the flow guide port remain sealed.

[0003] For example, our company has applied for a fast-opening and closing zero-friction spherical sealing butterfly valve with Chinese patent publication number CN119435732B. The opening and closing adjustment component on its opening and closing mechanism can adjust and limit the rising height of the valve body limiting sleeve. After the valve stem completes its linear stroke, the butterfly plate body can automatically retract to disengage the zero-friction spherical seal. Then, by continuing to rotate the opening and closing adjustment component, the two surfaces of the pressure panel and the valve body limiting sleeve are engaged at a specific position to automatically switch to angular stroke rotation, so that the butterfly plate body can be opened by the butterfly plate seat assembly at a maximum angle of 90°.

[0004] In summary, the valve structures in existing technologies are relatively simple, all using simple straight-line discs (sealing plates) to block the passage. Although they all have a sealing effect, the sealing of these discs (sealing plates) mainly relies on the elastic connection at the bottom, and can only block the guide port through one side of the disc. They cannot achieve a double-sided high-elastic seal to form a sealed chamber for the entire valve body. The overall elastic sealing needs to be improved. Moreover, after the valve is opened, the disc seat assembly is still located in the middle of the valve body, which has a certain impact on the water flow effect. At the same time, it does not have the function of filtering the flowing liquid or cleaning and sewage discharge. The overall performance and structural design need further optimization and improvement. Therefore, it is urgent to propose a double-seal special-shaped ball valve to improve the above problems. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this invention is to provide a double-sealed irregular ball valve to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a double-sealed irregular ball valve, comprising a valve body, a valve stem rotation and lifting operating mechanism movably mounted on the top of the valve body, a connector head located at the bottom end of the valve stem rotation and lifting operating mechanism, two relatively inclined oblique holes opened on the connector head, connecting pipes with flanges connected to the left and right sides of the valve body, first sealing gaskets installed on opposite sides of the two connecting pipes, and a support pipe seat integrally disposed at the bottom of the valve body, wherein an irregular ball valve disc is movably disposed inside the valve body, and second sealing gaskets are detachably installed on the left and right sides of the irregular ball valve disc;

[0007] The irregular spherical valve disc has a notch at the top, and the connector is located in the middle of the notch. The irregular spherical valve discs on both sides of the notch are longitudinally mounted with bolts, which are slidably inserted through two oblique holes respectively.

[0008] The bottom of the irregular ball valve disc has a slotted plate with a thin layer. When the connector is raised and lowered, the slotted plate deforms, allowing the notch of the irregular ball valve disc to open and close in opposite directions along the two oblique holes. When the notch is open, the second sealing gaskets on the left and right sides of the irregular ball valve disc fit tightly against the first sealing gaskets on the two connecting pipes, forming a separate closed space inside the valve body.

[0009] The irregular spherical valve disc has connecting side openings on both the front and rear sides, which are connected to the inside of the valve body. A lower tube seat is fixed at the bottom of the irregular spherical valve disc, and a rotating insertion tube is connected through and locked in the middle of the lower tube seat. The top of the rotating insertion tube is located inside the side opening. The rotating insertion tube is rotatably installed on the support tube seat and is used to rotatably support the irregular spherical valve disc and hold the bottom of the irregular spherical valve disc.

[0010] Preferably, the irregular spherical valve disc has an air outlet in the middle of both sides, and the slotted plate has an air inlet in the middle of both sides, which are connected to the air outlet. Both air inlets are equipped with air pipes, which are located on the lower side of the slotted plate. The air pipes are connected to the bottom of the valve body and to an external air pump. The irregular spherical valve disc has an expansion air bladder in the middle of both sides, which is connected to the air outlet.

[0011] Preferably, when the second sealing gaskets on the left and right sides of the irregular ball valve disc are tightly fitted to the first sealing gaskets on the two connecting pipes, the expansion bladder expands rapidly under the inflation of the external air pump and presses against the inner wall of the connecting pipe to further seal and limit the position.

[0012] Preferably, the inner wall of the connecting pipe is provided with an airtight locking groove, which corresponds to the outer periphery of the inflatable airbag. After the inflatable airbag is inflated, it is locked inside the airtight locking groove.

[0013] Preferably, the irregular spherical valve disc has side protrusions on both sides, a convex ring in the middle of the protrusion, the air outlet is located inside the convex ring, and the expansion airbag has a groove on one side that fits with the protrusion and an airbag opening that can be fitted onto the convex ring and connected to the air outlet.

[0014] Preferably, the second sealing gasket is fitted onto the outer edge of the inflatable airbag and locked onto the irregular spherical valve disc with screws. When the irregular spherical valve disc deforms outward to allow the second sealing gasket to adapt and press against the first sealing gasket, the pressing force of the second sealing gasket simultaneously presses against the outer edge of the inflatable airbag, thereby enhancing the sealing performance of the inflatable airbag.

[0015] Preferably, arc-shaped filter screens are installed on both sides of the side opening, and C-shaped connecting strips are fixed on the outer edge of the arc-shaped filter screens. The C-shaped connecting strips are distributed along the inner edge of the side opening and locked with screws. The C-shaped connecting strips are made of elastic metal material.

[0016] Preferably, the valve body has a water inlet integrally connected on both the front and rear sides, the water inlet is threaded with a sealing cap, and the water inlet corresponds to the horizontal side of the arc-shaped filter screen.

[0017] Preferably, the lower tube seat has slots on both sides of its outer surface, and the rotating insert has lugs on both sides that can fit into the slots. The slots and lugs are locked together by bolts. The rotating insert has a vertical drain cavity in the middle, and the top of the drain cavity is connected to the west side of the middle of the side opening. It is used to discharge impurities filtered inside the irregular ball valve disc from the valve body. The rotating insert also has multiple side drain holes on its side. These side drain holes are located at the bottom of the valve body cavity and are used to discharge impurities inside the valve body outward.

[0018] Preferably, the bottom of the support pipe seat is equipped with a sewage pipe insertion assembly for sealing the sewage pipe cavity and the side sewage holes. The sewage pipe insertion assembly includes a flange sealing plate detachably connected to the bottom flange of the support pipe seat and a sealing rod vertically installed on the upper middle part of the flange sealing plate. A pull handle is fixed at the bottom of the flange sealing plate. The sealing rod is inserted from bottom to top into the sewage pipe cavity of the support pipe seat and the rotating insertion pipe to strengthen the rotational support of the rotating insertion pipe and seal the top of the sewage pipe cavity and the two side sewage holes.

[0019] By adopting the above technical solution, the present invention has the following advantages:

[0020] This invention features a simple and ingenious structure. The irregularly shaped spherical valve disc, which is movably installed inside the valve body, has a notch at the top for tensioning, a slotted plate at the bottom for easier deformation, and a side opening in the middle for quick water flow switching. This makes the overall structure an inverted C-shaped irregularly shaped sphere, giving it strong expansion and contraction capabilities. When the connector moves upward, the irregularly shaped spherical valve disc contracts and deforms towards the middle on both sides. The two inclined holes close the notch at the top of the irregularly shaped spherical valve disc, thereby separating the second sealing gasket from the first sealing gasket. During the entire process of valve rotation and opening / closing, there is no friction between the second sealing gasket of the irregularly shaped spherical valve disc and the first sealing gasket of the connecting pipe, resulting in a long service life. Furthermore, the lower side of the slotted plate provides flexible movement space for the air pipe.

[0021] When the connector moves downward, the irregular ball valve flaps open outward on both sides, allowing the second sealing gaskets on both sides to simultaneously press against the first sealing gaskets on the two connecting pipes. This not only provides bidirectional sealing for the valve body, improving the valve's sealing and waterproofing performance, but also, especially in high-temperature conditions, this elastic telescopic ball structure design can compensate for deformation, preventing production accidents caused by valve seizure due to thermal expansion and contraction. Furthermore, the bidirectional sealing creates a separate, enclosed space inside the valve body, allowing for the injection of water through the water inlet to clean the internal dirt and for draining the wastewater outward by rotating the insertion pipe, without the need to disassemble the entire structure for cleaning.

[0022] The second sealing gaskets on both sides of the irregular ball valve disc can be disassembled for easy replacement and use, reducing costs. An expansion air bladder is protruding in the middle of the second sealing gasket. After the second sealing gasket is pressed against the first sealing gasket, the force can simultaneously press the outer edge of the expansion air bladder, improving the airtightness of the inner cavity of the expansion air bladder. Furthermore, the expansion air bladder expands under the inflation of an external air pump, which can quickly tighten the inside of the two connecting pipes. This not only improves the tightness between the connecting pipes and further enhances the sealing effect of the valve body, but also uses the expanded air bladder to limit the irregular ball valve disc, preventing subsequent accidental rotation and forced opening of the irregular ball valve disc, which could cause adverse effects.

[0023] Because the side openings of the irregular ball valve disc are also equipped with arc-shaped filter screens, when the valve is opened, the arc-shaped filter screens can be used to filter the fluid in multiple layers when water is quickly flowing through the two connecting pipes. This intercepts some of the larger impurities and improves the purification effect. Later, the impurities inside the valve body and the irregular ball valve disc can be discharged to the outside by opening the drain pipe assembly, thus achieving self-cleaning. Alternatively, when the irregular ball valve disc is in a bidirectional sealing state with the valve body, clean water can be actively injected through the water inlet for separate cleaning, improving the overall performance.

[0024] The rotating insertion tube is mounted on the lower tube seat. It not only serves to rotate and support the irregular ball valve disc, but also to hold the irregular ball valve disc in place. At the same time, it can also discharge the sewage trapped inside the irregular ball valve disc and valve body through the drain pipe cavity and side drain hole. Attached Figure Description

[0025] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

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

[0027] Figure 2 This is a schematic diagram showing the disassembled structure of the valve body and connecting pipe of the present invention;

[0028] Figure 3 This is a schematic diagram of the irregular spherical valve disc and connector of the present invention;

[0029] Figure 4 This is a schematic diagram of the valve stem rotation and lifting operating mechanism and the connector of the present invention;

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

[0031] Figure 6 This is a schematic diagram of the irregular spherical valve disc and rotating insertion tube of the present invention;

[0032] Figure 7 This is a schematic diagram of the irregular spherical valve disc, the expansion air bladder, and the second sealing gasket of the present invention;

[0033] Figure 8 This is a schematic diagram of the structure of the inflatable airbag and connecting tube of the present invention;

[0034] Figure 9 This is a schematic diagram of the arc-shaped filter screen of the present invention;

[0035] Figure 10 This is a schematic diagram of the structure of the sewage pipe insertion assembly and the rotating insertion tube of the present invention;

[0036] Figure 11 This is a schematic diagram of the structure of the valve body, the drain pipe assembly, and the water inlet of the present invention;

[0037] In the diagram: 1. Valve body; 2. Valve stem rotation and lifting mechanism; 3. Connector; 4. Inclined hole; 5. Connecting pipe; 6. First sealing gasket; 7. Airtight clamping groove; 8. Support pipe seat; 9. Irregular spherical valve disc; 10. Side protrusion; 11. Air outlet; 12. Air inlet; 13. Air pipe; 14. Convex ring; 15. Notch; 16. Grooved plate; 17. Side opening; 18. Lower pipe seat; 19. Slot; 20. Rotating insertion tube; 10. Lug; 11. Sewage pipe insertion assembly; 22. Flanged sealing plate; 33. Air plug; 4. Pull handle; 54. Detailed Implementation

[0038] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0039] like Figure 1-11As shown, the present invention provides a double-seal irregular ball valve, comprising a valve body 1, a valve stem rotation and lifting operating mechanism 2 movably mounted on the top of the valve body 1, a connector 21 located at the bottom end of the valve stem rotation and lifting operating mechanism 2, two downwardly inclined oblique holes 22 on the connector 21, connecting pipes 3 with flanges connected to the left and right sides of the valve body 1, first sealing gaskets 31 installed on opposite sides of the two connecting pipes 3, and a support pipe seat 4 integrally disposed at the bottom of the valve body 1. An irregular ball valve is movably disposed inside the valve body 1. The irregularly shaped spherical valve disc 5 has second sealing gaskets 6 installed on both sides for easy removal and replacement. The top of the irregularly shaped spherical valve disc 5 has a notch 51, and the connector 21 is located in the middle of this notch 51. Bolts are longitudinally installed on both sides of the notch 51, and slide through two oblique holes 22 respectively. The bottom of the irregularly shaped spherical valve disc 5 has a thin-layer grooved plate 52. When the connector 21 is raised or lowered, the grooved plate 52 deforms, allowing the irregularly shaped... The notch 51 of the ball valve disc 5 opens and closes relative to or opposite to each other along the two oblique holes 22. When the notch 51 is open, the second sealing gaskets 6 on the left and right sides of the irregular ball valve disc 5 tightly fit against the first sealing gaskets 31 of the connecting pipes 3 on both sides, forming a separate closed space inside the valve body 1. Specifically, when the upper side of the connector 21 moves downward, the notch 51 at the top of the irregular ball valve disc 5 is opened by the two oblique holes 22 under the guidance of the bolt, and the slotted plate portion 52 of the irregular ball valve disc 5 moves outward. The first sealing gasket 6 is pressed tightly against the first sealing gasket 31 to achieve a bidirectional sealing effect; conversely, when the connector 21 moves upward, the irregular ball valve disc 5 contracts and deforms towards the center on both sides, and the two inclined oblique holes 22 close the notch 51 at the top of the irregular ball valve disc 5, thereby allowing the second sealing gasket 6 to separate from the first sealing gasket 31. At this time, during the entire process of valve rotation and opening and closing, there is no friction between the second sealing gasket 6 of the irregular ball valve disc 5 and the first sealing gasket 31 of the connecting pipe 3, which improves the service life.

[0040] The irregular spherical valve disc 5 has interconnected side openings 521 on both the front and rear sides. These side openings 521 are connected to the inside of the valve body 1. When the valve is opened, the side openings 521 can be connected to the connecting pipe 3, allowing for rapid water flow and improving water flow smoothness. The overall structure of the irregular spherical valve disc 5 is an inverted C-shaped irregular sphere, giving it strong opening and closing functions. Furthermore, a lower pipe seat 53 is fixed at the bottom of the irregular spherical valve disc 5. A rotating insertion tube 54 is connected and locked through the middle of the lower pipe seat 53. The top of the rotating insertion tube 54 is located inside the side openings 521. The rotating insertion tube 54 is rotatably mounted on the support pipe seat 4 and is used to rotatably support the irregular spherical valve disc 5 and hold the bottom of the irregular spherical valve disc 5.

[0041] In the above technical solution, a further design is that air outlets 501 are provided in the middle of both sides of the irregular ball valve disc 5, and air inlets 502 are provided on both sides of the slotted plate portion 52, which are respectively connected to the air outlets 501. Air pipes 5021 are installed in both air inlets 502. These air pipes 5021 are located on the lower side of the slotted plate portion 52, providing space for the air pipes 5021 to move, thus avoiding obstruction when the irregular ball valve disc 5 rotates. Connected to the bottom of the valve body 1 and connected to an external air pump, the irregular ball valve disc 5 has an expansion bladder 7 in the middle part of its left and right sides, and the expansion bladder 7 is connected to the air outlet 501. The expansion bladder 7 expands under the inflation of the air outlet 501, air pipe 5021 and external air pump, which can quickly tighten the inside of the two connecting pipes 3, improve the tightness between them, and make the valve body 1 more effective in sealing. The expansion bladder 7 can also be used to limit the irregular ball valve disc 5 after expansion.

[0042] Furthermore, when the second sealing gaskets 6 on the left and right sides of the irregular ball valve disc 5 are tightly fitted to the first sealing gaskets 31 on both sides of the connecting pipe 3, the expansion airbag 7 expands rapidly under the inflation of the external air pump and presses against the inner wall of the connecting pipe 3 to further seal and limit it. The inner wall of the connecting pipe 3 is provided with an airtight clamping groove 32, which corresponds to the outer periphery of the expansion airbag 7. After the expansion airbag 7 expands, it is clamped inside the airtight clamping groove 32, making the expansion airbag 7 difficult to detach and ensuring good tightness.

[0043] A further design feature is that the irregularly shaped spherical valve disc 5 has side protrusions 50 on both sides, with a convex ring 503 in the middle of the protrusions 50. An air outlet 501 is located inside the convex ring 503. One side of the inflatable airbag 7 has a groove 71 that fits into the protrusions 50, and an airbag opening 72 that can be fitted onto the convex ring 503 and connected to the air outlet 501. The protrusions 50 engage with the groove 71, and the convex ring 503 engages with the airbag opening 72, improving the airtightness and alignment between the airbag opening 72 and the irregularly shaped spherical valve disc 5. Simultaneously, the... The second sealing gasket 6 is fitted onto the outer edge of the inflatable airbag 7 and locked onto the irregular spherical valve disc 5 with screws. When the irregular spherical valve disc 5 changes shape to allow the second sealing gasket 6 to fit and press against the first sealing gasket 31, the pressing force of the second sealing gasket 6 simultaneously presses against the outer edge of the inflatable airbag 7, thereby enhancing the sealing performance of the inflatable airbag 7. In other words, the tighter the first sealing gasket 31 and the second sealing gasket 6 are pressed after the irregular spherical valve disc 5 is spread open on both sides, the more tightly the outer edge of the inflatable airbag 7 is connected to the irregular spherical valve disc 5.

[0044] To improve the flow filtration effect of the valve body, arc-shaped filter screens 8 are installed on both sides of the side opening 521. When the liquid passes through the two arc-shaped filter screens 8, some impurities and particles can be filtered out. A C-shaped connecting strip 81 is fixed to the outer edge of the arc-shaped filter screen 8. The C-shaped connecting strip 81 is distributed along the inner edge of the side opening 521 and locked with screws. An opening is provided at the top of the C-shaped connecting strip 81. Both the arc-shaped filter screen 8 and the C-shaped connecting strip 81 can adapt to the expansion and contraction of the irregular ball valve disc 5. The C-shaped connecting strip 81 is made of elastic metal materials such as spring steel and stainless steel alloy, which has good elastic deformation performance.

[0045] To facilitate cleaning of the interior of the valve body 1, the irregularly shaped spherical valve disc 5, and the arc-shaped filter screen 8, a water inlet 10 is integrally connected to the front and rear sides of the valve body 1. This water inlet 10 is threaded onto a sealing cap 11, and the water inlet 10 corresponds to the horizontal side of the arc-shaped filter screen 8. Therefore, with the second sealing gaskets 6 on both sides of the irregularly shaped spherical valve disc 5 tightly fitted to the first sealing gasket 31 of the connecting pipe 3, and the expansion bladder 7 tightly fitted to the connecting pipe 3, the sealing cap 11 can be opened for water flushing. Furthermore, since the lower pipe seat 53 has slots 531 on both sides of its exterior, and the rotating insertion tube 54 has lugs 55 fixed on both sides that can fit into the slots 531, the slots 531... The lug 55 and the 31 are fastened together by bolts. The middle of the rotating tube 54 has a vertically opened drain cavity 56. The top of the drain cavity 56 is connected to the west side of the middle of the side opening 521. Therefore, after the impurities filtered inside the irregular ball valve disc 5 are flushed, the sewage can be discharged outside the valve body 1 along the drain cavity 56. The rotating tube 54 also has a number of side drain holes 561 on its side. The side drain holes 561 are located at the bottom of the inner cavity of the valve body 1. They can also discharge the impurities inside the valve body 1 to the outside. In other words, in addition to rotating and supporting the irregular ball valve disc 5 and holding the bottom of the irregular ball valve disc 5, the rotating tube 54 also has the function of discharging sewage to the outside.

[0046] The support pipe seat 4 is equipped with a drain pipe assembly 9 at its bottom for sealing the drain pipe cavity 56 and the side drain hole 561 to prevent leakage of the flowing liquid. The drain pipe assembly 9 includes a flange sealing plate 91 that is detachably connected to the bottom flange of the support pipe seat 4 and a sealing rod 92 that is vertically installed in the middle of the upper side of the flange sealing plate 91. A sealing ring is provided between the flange sealing plate 91 and the bottom of the support pipe seat 4 to prevent leakage. The sealing rod 92 is adapted from the support pipe seat 4 and the drain pipe cavity 56 of the rotating pipe 54 from bottom to top. The plugging rod 92 can be used to strengthen the rotation support of the rotating tube 54 and block the top of the drain pipe cavity 56 and the two side drain holes 561. The top of the plugging rod 92 can be equipped with a corresponding detector. The circuit is distributed downward from the middle of the plugging rod 92 and connected externally to detect the liquid condition inside the valve body 1. For example, a sewage detector in the prior art can be installed to detect and determine whether the water quality inside the valve body 1 has been cleaned. A pull handle 93 is fixed at the bottom of the flange sealing plate 91 to facilitate pulling the plugging rod 92 out downward and inserting it upward.

[0047] More specific implementation methods, such as Figure 3 and Figure 4 As shown, when the valve needs to be opened, the valve stem rotation and lifting mechanism 2 drives the connector 21 to move upward. The bottom pipe seat 53 of the irregular ball valve disc 5 is pulled by the rotating insertion pipe 54 and the support pipe seat 4. At this time, the left and right sides of the irregular ball valve disc 5 contract and deform towards the center. At the same time, the two inclined oblique holes 22 close the top notch 51 of the irregular ball valve disc 5, so that the second sealing gaskets 6 on the left and right sides of the irregular ball valve disc 5 are completely separated from the first sealing gasket 31 of the connecting pipe 3. During the entire process of the valve stem rotation and lifting mechanism 2 rotating the irregular ball valve disc 5 to open and close, there is no friction between the second sealing gasket 6 of the irregular ball valve disc 5 and the first sealing gasket 31 of the connecting pipe 3, resulting in a longer service life. When rotating to open the valve, the valve stem rotation and lifting mechanism 2... Mechanism 2 drives connector 21 to rotate 90 degrees clockwise, allowing the irregular ball valve 5 to rotate 90 degrees under the rotational support of the rotating insertion tube 54. This allows the side openings 521 on both sides of the irregular ball valve 5 to quickly pass water through the two connecting pipes 3. The fluid is then filtered in multiple layers using two outwardly protruding arc-shaped filter screens 8, intercepting some of the larger impurities and thus improving the purification effect. After the fluid has been circulating and filtered for a period of time, the drain pipe insertion assembly 9 can be opened, that is, the flange sealing plate 91 and the bolts of the support pipe seat 4 can be removed. By holding the pull handle 93, the entire sealing rod 92 can be pulled downwards, allowing the impurities inside the valve body 1 and the irregular ball valve 5 to be discharged to the outside under the action of water pressure, achieving self-cleaning. After cleaning, the drain pipe insertion assembly 9 can be reinstalled.

[0048] Similarly, when the valve needs to be closed, the valve stem rotation and lifting mechanism 2 drives the connector 21 to rotate counterclockwise by 90 degrees, so that the second sealing gaskets 6 on both sides of the irregular ball valve disc 5 correspond between the first sealing gaskets 31 of the two connecting pipes 3, and drives the connector 21 to move downward, causing the irregular ball valve disc 5 to open outward on both sides. This allows the second sealing gaskets 6 on both sides to simultaneously press against the first sealing gaskets 31 of the two connecting pipes 3, providing bidirectional sealing for the valve body 1 and improving the valve's sealing and waterproofing effects. This elastic telescopic ball structure design is particularly useful in high-temperature conditions, where uneven thermal expansion between the valve body and the pipeline due to temperature differences can be compensated for in real time, avoiding quality problems caused by valve seizure due to thermal expansion and contraction, thus preventing production issues. In the event of an accident, the second sealing gasket 6 is located on the outer edge of the expansion bladder 7. By tightening it with screws, the second sealing gasket 6 and the expansion bladder 7 can be simultaneously locked onto the irregular ball valve disc 5. Moreover, after the second sealing gasket 6 is pressed against the first sealing gasket 31, this force can simultaneously press the outer edge of the expansion bladder 7, thereby simultaneously improving the airtightness of the inner cavity of the expansion bladder 7. Furthermore, the expansion bladder 7 expands under the inflation of the external air pump, which can quickly tighten the first sealing gasket 31 inside the two connecting pipes 3. This not only improves the tightness between the expansion bladder 7 and the connecting pipes 3, further improving the sealing effect of the valve body 1, but also allows the expanded expansion bladder 7 to limit the irregular ball valve disc 5, preventing subsequent erroneous operations from forcibly rotating and opening the irregular ball valve disc 5, which could cause adverse effects.

[0049] Furthermore, the two-way sealing valve body 1 forms separate enclosed spaces on both sides. During this period, clean water can be actively injected from the water inlet 10 by opening the sealing cover 11 to clean the impurities and dirt in the inner cavity of the valve body 1, the side port 521, and the arc-shaped filter screen 8. The drain pipe assembly 9 can be opened to allow the rotating pipe 54 to drain the sewage downwards. After cleaning, it can be reinstalled. This process does not require disassembling the entire structure for cleaning. This cleaning is active cleaning, which uses external clean water for cleaning. It is operated when the valve is closed, unlike the self-cleaning when the valve is opened. It does not directly discharge sewage from the conveying liquid material, which can reduce the waste of liquid material, save costs, and achieve better cleaning results.

[0050] It should be noted that the double-sealed irregular ball valve of the present invention mainly improves the above-mentioned structure. The functions, components and structures not mentioned can be implemented by using existing components and structures that can achieve the corresponding functions.

[0051] The above embodiments illustrate and describe the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A double-seal irregular-shaped ball valve, comprising a valve body, a valve stem rotation and lifting operating mechanism movably mounted on the top of the valve body, a connector located at the bottom end of the valve stem rotation and lifting operating mechanism, two relatively inclined oblique holes on the connector, connecting pipes with flanges connected to the left and right sides of the valve body, first sealing gaskets installed on opposite sides of the two connecting pipes, and a support pipe seat integrally disposed at the bottom of the valve body, characterized in that: An irregularly shaped spherical valve disc is movably disposed on the inner side of the valve body, and second sealing gaskets are detachably installed on the left and right sides of the irregularly shaped spherical valve disc; The irregular spherical valve disc has a notch at the top, and the connector is located in the middle of the notch. The irregular spherical valve discs on both sides of the notch are longitudinally mounted with bolts, which are slidably inserted through two oblique holes respectively. The bottom of the irregular ball valve disc has a slotted plate with a thin layer. When the connector is raised and lowered, the slotted plate deforms, allowing the notch of the irregular ball valve disc to open and close in opposite directions along the two oblique holes. When the notch is open, the second sealing gaskets on the left and right sides of the irregular ball valve disc fit tightly against the first sealing gaskets on the two connecting pipes, forming a separate closed space inside the valve body. The irregular spherical valve disc has connecting side openings on both the front and rear sides, which are connected to the inside of the valve body. The bottom of the irregular spherical valve disc is fixed with a lower tube seat, and a rotating insertion tube is connected through and locked in the middle of the lower tube seat. The top of the rotating insertion tube is located inside the side opening. The rotating insertion tube is rotatably installed on the support tube seat and is used to rotatably support the irregular spherical valve disc and pull the bottom of the irregular spherical valve disc. The irregular spherical valve disc has an air outlet in the middle of both sides, and an air inlet in the middle of both sides of the slotted plate is connected to the air outlet. Both air inlets are equipped with air pipes, which are located on the lower side of the slotted plate. The air pipes are connected to the bottom of the valve body and to an external air pump. An expansion air bladder is provided in the middle of both sides of the irregular spherical valve disc, and the expansion air bladder is connected to the air outlet. When the second sealing gaskets on both sides of the irregular spherical valve disc are tightly fitted to the first sealing gaskets of the connecting pipes on both sides, the expansion air bladder is rapidly expanded under the inflation of the external air pump and presses against the inner wall of the connecting pipe to further seal and limit the position. The second sealing gasket is sleeved on the outer edge of the expansion air bladder.

2. The double-sealed irregular-shaped ball valve according to claim 1, characterized in that, The inner wall of the connecting pipe is provided with an airtight locking groove, which corresponds to the outer periphery of the inflatable airbag. After the inflatable airbag is inflated, it is locked inside the airtight locking groove.

3. A double-sealed irregular-shaped ball valve according to claim 2, characterized in that, The irregular spherical valve disc has side protrusions on both sides, and a convex ring is provided in the middle of the protrusion. The air outlet is located inside the convex ring. The expansion airbag has a groove that fits the protrusion and a bladder opening that can be fitted onto the convex ring and connected to the air outlet on one side.

4. A double-seal irregular-shaped ball valve according to claim 3, characterized in that, The second sealing gasket is locked onto the irregular ball valve disc by screws. When the irregular ball valve disc deforms outward and the second sealing gasket fits and presses against the first sealing gasket, the pressing force of the second sealing gasket simultaneously presses against the outer edge of the inflatable airbag, thereby enhancing the sealing performance of the inflatable airbag.

5. A double-seal irregular-shaped ball valve according to claim 4, characterized in that, The side openings on both sides are also equipped with arc-shaped filter screens. The outer edge of the arc-shaped filter screen is fixed with a C-shaped connecting strip. The C-shaped connecting strip is distributed along the inner edge of the side opening and is locked with screws. The C-shaped connecting strip is made of elastic metal material.

6. A double-seal irregular-shaped ball valve according to claim 5, characterized in that, The valve body has a water inlet integrally connected on the front and rear sides. The water inlet is threaded with a sealing cap and is located on the horizontal side of the arc-shaped filter screen.

7. A double-seal irregular-shaped ball valve according to claim 6, characterized in that, The lower tube seat has slots on both sides of its exterior. The rotating insert has lugs on both sides that can fit into the slots, and the slots and lugs are fastened together by bolts. The rotating insert has a vertical drain cavity in the middle, and the top of the drain cavity is connected to the west side of the middle of the side opening. It is used to discharge impurities filtered inside the irregular ball valve disc from the valve body. The rotating insert also has multiple side drain holes on its side. These side drain holes are located at the bottom of the valve body cavity and are used to discharge impurities inside the valve body outward.

8. A double-sealed irregular-shaped ball valve according to claim 7, characterized in that, The bottom of the support tube seat is equipped with a sewage pipe insertion assembly for sealing the sewage pipe cavity and the side sewage holes. The sewage pipe insertion assembly includes a flange sealing plate that is detachably connected to the bottom flange of the support tube seat and a sealing rod that is vertically installed on the upper middle part of the flange sealing plate. A pull handle is fixed at the bottom of the flange sealing plate. The sealing rod is inserted from bottom to top into the sewage pipe cavity of the support tube seat and the rotating insertion tube to strengthen the rotation support of the rotating insertion tube and seal the top of the sewage pipe cavity and the two side sewage holes.

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