A flow-blocking eccentric hemispherical valve for mud

Abstract

The present invention relates to the technical field of valves, and in particular to a flow-blocking eccentric hemispherical valve for mud. The valve comprises a valve body, a first pipe, a second pipe, a rotating rod, a rotating valve core, a sliding plate, and a reset spring. The first pipe and the second pipe are connected via the valve body. The rotating rod is rotatably connected to the valve body, the rotating valve core is connected to the rotating rod, and the rotating valve core is located inside the valve body. The sliding plate is slidably connected to the first pipe and can slide up and down. When the rotating valve core is rotated to close, it contacts the sliding plate. The reset spring connects the sliding plate and the first pipe. The present invention can control the rotation of the rotating valve core to open or close by rotating the hand wheel forward and reverse, thereby controlling the flow of mud. At the same time, when the rotating valve core is rotated to close, if the surface of the rotating valve core is stained with mud, the rotating valve core will squeeze the sliding plate to move upward, so that the mud can be temporarily stored between the rotating valve core and the sliding plate, thereby ensuring the sealing between the rotating valve core and the valve body.

Description

Technical Field

[0001] The invention relates to the technical field of valves, in particular to a flow-blocking eccentric hemispherical valve used for mud. Background Art

[0002] Ball valves are mainly used in pipelines to cut off, distribute and change the flow direction of the medium. They can be closed tightly by simply rotating 90 degrees and applying a very small torque. Due to their large flow capacity, simple structure and ease of use, ball valves are more common in high-pressure mud transportation.

[0003] Eccentric semi-ball valves or V-type ball valves both have a semi-spherical structure core, which can effectively prevent the medium from clogging the inside of the valve body. They are suitable for media containing fibers and particles. Therefore, eccentric semi-ball valves or V-type ball valves are often used as opening and closing parts for mud pipelines. When using existing eccentric semi-ball valves, the valve core of the eccentric semi-ball valve is manually controlled to rotate, and the valve core and the valve seat are tangent to each other, so that the valve core generates a pressing force on the valve seat; however, when the valve core is blocking the flow of mud, the mud easily adheres to the surface of the valve core, and over time, precipitation will form, which will be stuck between the valve core and the valve seat, making it difficult to completely close the valve core and having poor sealing performance. Summary of the Invention

[0004] In view of this, the present invention provides a flow-blocking eccentric hemispherical valve for mud, which can overcome the disadvantage of the existing eccentric rotary valve that mud easily adheres to the surface of the valve core when in use, thereby forming sediment stuck between the valve core and the valve seat, affecting the sealing between the valve core and the valve seat.

[0005] The technical solution is as follows:

[0006] A flow-blocking eccentric hemispherical valve for mud includes a valve body, a first pipeline, a second pipeline, a rotating rod and a rotating valve core. The first pipeline and the second pipeline are connected through the valve body. The rotating rod is rotatably connected to the valve body, the rotating valve core is connected to the rotating rod, and the rotating valve core is located inside the valve body. It also includes a sliding plate, a reset spring and an opening and closing mechanism. The sliding plate is slidably connected to the first pipeline and can slide up and down. When the rotating valve core rotates to close, it will contact the sliding plate. The reset spring connects the sliding plate and the first pipeline to elastically reset the sliding plate. The opening and closing mechanism is used to control the rotation of the rotating valve core to control the on and off of the valve body.

[0007] Preferably, the opening and closing mechanism includes a rotating rod, a handwheel, a first gear, a sliding frame, a second gear and a locking assembly, the rotating rod is rotatably connected to the valve body, and the rotating rod is located on the front side of the rotating rod, the handwheel is connected to the rotating rod, an external thread is opened on the rotating rod, the first gear is connected to the rotating rod, the sliding frame is slidably connected to the rotating rod and can slide left and right, and the sliding frame and the rotating rod are threadedly matched through external threads so that the rotating rod can drive the sliding frame to move by rotating, the second gear is rotatably connected to the sliding frame, the second gear is meshed with the first gear, and the second gear is slidably connected to the rotating rod, so that the rotating rod can drive the rotating rod to rotate through the meshing of the second gear and the first gear, and the locking assembly is used to lock the rotating rod.

[0008] Preferably, the locking assembly includes a connecting gear, a guide block and a clamping block, the connecting gear is connected to the rotating rod, the guide block is connected to the valve body, the clamping block is slidably connected to the guide block and can slide up and down, and the clamping block can clamp the connecting gear when it moves upward to lock the rotating rod.

[0009] Preferably, a flow blocking mechanism is also included, which includes a mounting frame, a mounting block, a connecting pipe, a take-up ring, a pull wire, a flow blocking plate and a compression spring. The mounting frame is connected to the first pipeline, the mounting block is connected to the valve body, the connecting pipe is connected to the mounting block and the mounting frame, the take-up ring is connected to the rotating rod so that the take-up ring can rotate synchronously with the rotating rod, the take-up ring is located on the right side of the connecting gear, the pull wire is slidably connected to the connecting pipe, the flow blocking plate is slidably connected to the mounting frame and can slide back and forth, and the flow blocking plate slides through the first pipeline so that the backward movement of the flow blocking plate can block the mud in the first pipeline, the pull wire connects the take-up ring and the flow blocking plate, so that the take-up ring rotates to reel in the pull wire and pull the flow blocking plate forward, and the compression spring connects the flow blocking plate and the mounting frame so that the flow blocking plate slides backward and resets.

[0010] Preferably, a flushing mechanism is also included, which includes a mounting plate, a high-pressure water pump, a water inlet pipe, a connecting cylinder, a fixed pipe, a connecting frame, a nozzle and a connecting spring. The mounting plate is connected to the valve body, the high-pressure water pump is connected to the mounting plate, the water inlet of the high-pressure water pump is connected to the water inlet pipe, the water outlet of the high-pressure water pump is connected to the connecting cylinder, the fixed pipe is connected to the connecting cylinder, the connecting frame is slidably connected to the fixed pipe and can slide left and right, the nozzle is connected to the connecting frame, the nozzle slides through the connecting cylinder and the valve body, and the nozzle slides to the right and can extend into the valve body so that the nozzle can spray water to clean the inner wall of the valve body, and the connecting spring connects the fixed pipe and the connecting frame so that the nozzle elastically resets to the left.

[0011] Preferably, a collection mechanism is also included, which includes a guide rail, a collection frame and a fixed component. Two guide rails are symmetrically connected to the second pipe. The collection frame is slidably connected to the guide rails and can slide left and right so that the collection frame can slide to the right and extend into the second pipe to collect wastewater. A drain outlet for drainage is provided on the collection frame, and the fixed component is used to fix the position of the collection frame.

[0012] Preferably, the fixing assembly includes a magnet and a handle, the magnet is rotatably connected to the collection frame and can swing left and right, the magnet can attract the second pipe to fix the position of the collection frame, and the handle is connected to the magnet.

[0013] Preferably, it further includes a guide rod and a baffle. The guide rod is symmetrically connected to the collection frame. The baffle is slidably connected to the guide rod and can slide up and down. The baffle can block the left side of the drain outlet.

[0014] The beneficial effects of the present invention are:

[0015] 1. The present invention can control the rotation of the rotary valve core to open or close by rotating the hand wheel forward and reverse, thereby controlling the flow of mud. At the same time, when the rotary valve core is rotated to close, if the surface of the rotary valve core is stained with mud, the rotary valve core will squeeze the sliding plate to move upward, so that the mud can be temporarily stored between the rotary valve core and the sliding plate, thereby ensuring the sealing between the rotary valve core and the valve body.

[0016] 2. When the hand wheel of the present invention is reversed, it can drive the baffle to move rightward and extend into the first pipe, thereby reducing the mud flow in the first pipe, and further reducing the resistance encountered by the rotating valve core, so that the rotating valve core can be closed more conveniently.

[0017] 3. The present invention can first drive the nozzle to move rightward and extend into the interior of the valve body through the action of the high-pressure water pump, and then can spray water through the nozzle to flush the inner wall of the valve body, thereby preventing a large amount of mud from remaining on the inner wall of the valve body and causing blockage.

[0018] 4. The baffle of the present invention can block the drain outlet, so that wastewater can accumulate and contact the inner wall of the valve body and the inner wall of the second pipe. When the baffle moves upward, the wastewater can be quickly discharged to flush out the mud on the inner wall of the valve body and the inner wall of the second pipe, preventing the mud from solidifying and causing blockage of the valve body and the second pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a cross-sectional view of the valve body and the first pipeline of the present invention.

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the opening and closing mechanism of the present invention.

[0022] Figure 4 For the present invention Figure 3 Magnified view of part A.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the rotating rod, the sliding frame and the second gear of the present invention.

[0024] Figure 6 This is a schematic diagram of the first three-dimensional structure of the flow-blocking mechanism of the present invention.

[0025] Figure 7 This is a schematic diagram of the second three-dimensional structure of the flow-blocking mechanism of the present invention.

[0026] Figure 8 It is a cross-sectional view of the connecting pipe of the present invention.

[0027] Figure 9 It is a schematic diagram of the three-dimensional structure of the flushing mechanism of the present invention.

[0028] Figure 10 It is a cross-sectional view of the connecting tube and the fixing tube of the present invention.

[0029] Figure 11 It is a schematic diagram of the three-dimensional structure of the collecting mechanism of the present invention.

[0030] Figure 12 It is a schematic diagram of the three-dimensional structure of the guide rod and the baffle of the present invention.

[0031] Explanation of reference numerals: 1: valve body, 2: first pipe, 3: second pipe, 4: rotating rod, 5: rotating valve core, 6: sliding plate, 7: return spring, 8: opening and closing mechanism, 81: rotating rod, 82: hand wheel, 83: external thread, 84: first gear, 85: sliding frame, 86: second gear, 87: connecting gear, 88: guide block, 89: clamping block, 9: flow blocking mechanism, 91: mounting frame, 92: mounting block, 93: connecting pipe, 94: take-up Ring, 95: Pull wire, 96: Baffle, 97: Compression spring, 10: Flushing mechanism, 101: Mounting plate, 102: High-pressure water pump, 103: Water inlet pipe, 104: Connecting cylinder, 105: Fixed pipe, 106: Connecting frame, 107: Spray pipe, 108: Connecting spring, 11: Collecting mechanism, 111: Guide rail, 112: Collecting frame, 1121: Drain outlet, 113: Magnet, 114: Handle, 121: Guide rod, 122: Baffle. DETAILED DESCRIPTION

[0032] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0033] Example 1: A flow-blocking eccentric hemispherical valve for mud, such as Figure 1-Figure 5As shown, it includes a valve body 1, a first pipeline 2, a second pipeline 3, a rotating rod 4, a rotating valve core 5, a sliding plate 6, a return spring 7 and an opening and closing mechanism 8. The top of the valve body 1 is connected to the first pipeline 2, and the bottom of the valve body 1 is connected to the second pipeline 3. The right side of the valve body 1 is rotatably connected to the rotating rod 4, and the left end of the rotating rod 4 is connected to the rotating valve core 5. The rotating valve core 5 is located inside the valve body 1. The forward and reverse rotation of the rotating valve core 5 can control the on and off of the mud in the valve body 1. The rear side of the first pipeline 2 is slidably connected to the sliding plate 6. The bottom of the sliding plate 6 is in contact with the rotating valve core 5. When the rotating valve core 5 rotates to contact the sliding plate 6, the mud on the rotating valve core 5 will squeeze the sliding plate 6 to move upward, so that the mud can temporarily exist between the rotating valve core 5 and the sliding plate 6 to ensure the sealing of the rotating valve core 5 and the valve body 1. A return spring 7 is connected between the top of the sliding plate 6 and the first pipeline 2, and an opening and closing mechanism 8 is provided on the valve body 1.

[0034] like Figure 1 、 Figure 3 、 Figure 4 and Figure 5 As shown, the opening and closing mechanism 8 includes a rotating rod 81, a hand wheel 82, a first gear 84, a sliding frame 85, a second gear 86, a connecting gear 87, a guide block 88 and a clamping block 89. The right side of the valve body 1 is rotatably connected to the rotating rod 81, the rotating rod 81 is located in front of the rotating rod 4, the right end of the rotating rod 81 is connected to the hand wheel 82, an external thread 83 is opened on the rotating rod 81, the middle part of the rotating rod 81 is connected to the first gear 84, the rotating rod 4 is slidably connected to the sliding frame 85, and the sliding frame 85 is threadedly matched with the rotating rod 81 through the external thread 83 The sliding frame 85 is rotatably connected to a second gear 86, which meshes with the first gear 84, and the second gear 86 is slidably connected to the rotating rod 4. By turning the handwheel 82, the rotating rod 81 can be driven to rotate, and then the rotating rod 4 can be driven to rotate by meshing the second gear 86 with the first gear 84. The left part of the rotating rod 81 is connected to a connecting gear 87, and a guide block 88 is welded to the right side of the valve body 1. A clamping block 89 is slidably connected to the guide block 88, and the clamping block 89 clamps the connecting gear 87, thereby locking the position of the rotating rod 81.

[0035] First, install the eccentric rotary valve in the specified position, and then pull the block 89 downward to release the connecting gear 87, and then rotate the handwheel 82 to drive the rotating rod 81, the first gear 84 and the connecting gear 87 to rotate. The first gear 84 can drive the second gear 86 to rotate, and the second gear 86 can drive the rotating rod 4 to rotate, and the rotating rod 4 can drive the rotating valve core 5 to rotate and open. At the same time, the rotation of the rotating rod 4 can drive the sliding frame 85 to move backward through the external thread 83, driving the second gear 86 to move backward away from the first gear 84. When the second gear 86 is separated from the first gear 84, the second gear 86, the rotating rod 4 and the rotating valve core 5 stop rotating. Then the block 89 can be pushed upward to clamp the connecting gear 87, and the position of the rotating rod 81 can be locked. At this time, the first pipe 2 and the second pipe 3 can be connected through the valve body 1. The mud conveying work is completed. When the mud conveying needs to be blocked, the block 89 can be manipulated again to loosen the connecting gear 87, and then the hand wheel 82 can be reversed to drive the rotating rod 81, the first gear 84 and the connecting gear 87 to reverse. The reversal of the rotating rod 4 can drive the sliding frame 85 to move forward and reset through the external thread 83, driving the second gear 86 to move forward and engage with the first gear 84, so that the first gear 84 can drive the second gear 86 to reverse, and the second gear 86 can drive the rotating rod 4 to reverse, and the rotating rod 4 can drive the rotating valve core 5 to reverse and close. When the rotating valve core 5 contacts the sliding plate 6, if the surface of the rotating valve core 5 is stained with mud, the rotating valve core 5 will squeeze the sliding plate 6 to move upward, and the reset spring 7 is compressed, so that the mud can be temporarily stored between the rotating valve core 5 and the sliding plate 6, thereby not affecting the sealing between the rotating valve core 5 and the valve body 1.

[0036] like Figure 1 、 Figure 6 、 Figure 7 and Figure 8 As shown, it also includes a blocking mechanism 9, which includes a mounting frame 91, a mounting block 92, a connecting pipe 93, a take-up ring 94, a pull wire 95, a spoiler 96 and a compression spring 97. The mounting frame 91 is welded to the front side of the first pipeline 2, and the front right side of the valve body 1 is connected to the mounting block 92. A connecting pipe 93 is connected between the mounting block 92 and the mounting frame 91. The left part of the rotating rod 81 is connected to the take-up ring 94, and the take-up ring 94 is located on the right side of the connecting gear 87. A pull wire 95 is slidably connected in the connecting pipe 93, and a spoiler 96 is slidably connected on the mounting frame 91. The spoiler 96 slides through the first pipeline 2. When the spoiler 96 moves backward and extends into the first pipeline 2, it can reduce the flow of mud in the first pipeline 2, so that the rotary valve core 5 can be rotated and closed more effortlessly. The two ends of the pull wire 95 are respectively connected to the take-up ring 94 and the spoiler 96. Two compression springs 97 are connected between the spoiler 96 and the mounting frame 91.

[0037] When people turn the hand wheel 82, they can drive the rotating rod 81 and the take-up ring 94 to rotate, and the take-up ring 94 can reel in the pull line 95. The connecting tube 93 can guide the pull line 95 so that the pull line 95 can pull the spoiler 96 forward and retract it. The compression spring 97 is compressed. When the second gear 86 is separated from the first gear 84, people can continue to turn the hand wheel 82 to completely retract the spoiler 96, thereby not affecting the mud transportation work and the rotation of the rotary valve core 5. When people reverse the hand wheel 82, they can drive the rotating rod 81 and the take-up ring 94 to reverse. , so that the take-up ring 94 relaxes the pull wire 95, and the compression spring 97 returns to its original state, which can drive the baffle 96 to move backward and reset. The baffle 96 can drive the pull wire 95 to reset. At the same time, the baffle 96 can slowly extend into the first pipe 2, thereby reducing the mud flow. When the second gear 86 re-engages with the first gear 84, people can continue to reverse the handwheel 82 to reverse and close the rotary valve core 5. Since the baffle 96 can reduce the mud flow in the first pipe 2, it can reduce the resistance to the rotary valve core 5, so that the rotary valve core 5 can be rotated and closed more conveniently.

[0038] like Figure 1 、 Figure 9 and Figure 10 As shown, it also includes a flushing mechanism 10, which includes a mounting plate 101, a high-pressure water pump 102, a water inlet pipe 103, a connecting tube 104, a fixed tube 105, a connecting frame 106, a nozzle 107 and a connecting spring 108. A mounting plate 101 is welded to the left side of the valve body 1, and a high-pressure water pump 102 is bolted to the mounting plate 101. The water inlet of the high-pressure water pump 102 is connected to the water inlet pipe 103, and the water outlet of the high-pressure water pump 102 is connected to the connecting tube 104. The connecting tube 104 is connected with a fixed tube 105, and the fixed tube 105 is slidably connected with a connecting frame 106. The right side of the connecting frame 106 is connected with a nozzle 107, and the nozzle 107 slides through the connecting tube 104 and the valve body 1. Water spraying through the nozzle 107 can clean the inner wall of the valve body 1, and a connecting spring 108 is connected between the connecting frame 106 and the fixed tube 105.

[0039] like Figure 1 and Figure 11 As shown, it also includes a collecting mechanism 11, which includes a guide rail 111, a collecting frame 112, a magnet 113 and a handle 114. The guide rail 111 is welded symmetrically on the front and back of the left side of the second pipe 3, and the collecting frame 112 is slidably connected between the two guide rails 111. The collecting frame 112 can collect wastewater. A drain outlet 1121 is opened at the lower left side of the collecting frame 112. The top of the collecting frame 112 is rotatably connected to the magnet 113. The magnet 113 attracts the second pipe 3, and the left side of the magnet 113 is connected to the handle 114.

[0040] Initially, people can connect the water inlet pipe 103 to the water source, and the right end face of the nozzle 107 is flush with the left side of the inner wall of the valve body 1, which can prevent the mud in the valve body 1 from entering the nozzle 107. At the same time, the right side of the collection frame 112 is flush with the left side of the inner wall of the second pipe 3, which can prevent the mud in the second pipe 3 from entering the collection frame 112. When the rotary valve core 5 is rotated and closed, there is no more mud flowing in the valve body 1 and the second pipe 3. At this time, the handle 114 can be pushed to the right to drive the magnet 113 and the collection frame 112 moves to the right, so that the collecting frame 112 can extend into the second pipe 3, and the second pipe 3 is attracted by the magnet 113 to fix the position of the collecting frame 112. Then the high-pressure water pump 102 is started, and the high-pressure water pump 102 can extract water from the water source through the water inlet pipe 103, and then transport the water to the connecting cylinder 104 and the fixed pipe 105. Under the action of water pressure, the connecting frame 106 can be squeezed to move to the right, and the connecting spring 108 is stretched, and the connecting frame 106 can drive the nozzle 107 to move to the right. The valve body 1 is moved into the interior of the valve body 1. When the connecting frame 106 moves to the rightmost side, the water in the connecting tube 104 and the fixed pipe 105 can enter the nozzle 107 through the connecting frame 106, and then be sprayed out through the nozzle 107 to flush the inner wall of the valve body 1, thereby preventing a large amount of mud from remaining on the inner wall of the valve body 1 and causing blockage. The waste water in the valve body 1 will fall into the collection frame 112 and then be discharged outward through the drain port 1121, preventing the waste water from flowing into the second pipe 3 and affecting the mud ratio. After cleaning, After completion, the high-pressure water pump 102 can be turned off, and the connecting spring 108 can be restored to its original state, driving the connecting frame 106 and the nozzle 107 to move to the left and retract, and then turning the handle 114 can drive the magnet 113 to rotate, so that the lower end surface of the magnet 113 can support the side of the second pipe 3, so that the magnet 113 can be separated from the second pipe 3 more easily, and then pulling the handle 114 to the left can drive the magnet 113 and the collecting frame 112 to move to the left and reset, so that the collecting frame 112 is away from the second pipe 3.

[0041] like Figure 12 As shown, it also includes a guide rod 121 and a baffle 122. The guide rods 121 are symmetrically welded to the front and back of the left side of the collection frame 112. The baffle 122 is slidably connected between the two guide rods 121, and the baffle 122 blocks the left side of the drain outlet 1121.

[0042] Initially, the baffle 122 can block the drain outlet 1121, so that the wastewater in the collection frame 112 can accumulate more and more, and the accumulated wastewater will contact the inner wall of the valve body 1 and the inner wall of the second pipe 3. When the wastewater accumulates to a certain amount, the baffle 122 can be pulled upward to allow the wastewater to be discharged outward through the drain outlet 1121. Under the action of gravity, the discharge speed of the wastewater can be accelerated, thereby flushing out the mud on the inner wall of the valve body 1 and the inner wall of the second pipe 3, preventing the mud from solidifying and causing blockage of the valve body 1 and the second pipe 3.

[0043] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A flow-blocking eccentric hemispherical valve for mud, comprising a valve body (1), a first pipe (2), a second pipe (3), a rotating rod (4) and a rotating valve core (5), wherein the first pipe (2) and the second pipe (3) are connected via the valve body (1), the rotating rod (4) is rotatably connected to the valve body (1), the rotating valve core (5) is connected to the rotating rod (4), and the rotating valve core (5) is located inside the valve body (1), characterized in that: The valve body (1) is provided with a plurality of movable parts, wherein the movable parts are ... The sliding frame (85) and the rotating rod (81) are threadedly matched through the external thread (83), so that the rotating rod (81) can drive the sliding frame (85) to move, the second gear (86) is rotatably connected to the sliding frame (85), the second gear (86) is meshed with the first gear (84), and the second gear (86) is slidably connected to the rotating rod (4), so that the rotating rod (81) can drive the rotating rod (4) to rotate through the meshing of the second gear (86) and the first gear (84), and the locking component is used to lock the rotating rod (81); the locking component includes a connecting gear (87), a guide block (88) and a clamping block (89), the connecting gear (87) is connected to the rotating rod (81), the guide block (88) is connected to the valve body (1), the clamping block (89) is slidably connected to the guide block (88) and can slide up and down, and the clamping block (89) can clamp the connecting gear (87) when it moves upward to lock the rotating rod (81);The valve body (1) is provided with a flow blocking mechanism (9), wherein the flow blocking mechanism (9) comprises a mounting frame (91), a mounting block (92), a connecting pipe (93), a take-up ring (94), a pull wire (95), a flow blocking plate (96) and a compression spring (97). The mounting frame (91) is connected to the first pipeline (2), the mounting block (92) is connected to the valve body (1), the connecting pipe (93) connects the mounting block (92) and the mounting frame (91), and the take-up ring (94) is connected to the rotating rod (81) so that the take-up ring (94) can rotate synchronously with the rotating rod (81). The take-up ring (94) is located on the right side of the connecting gear (87). The pull wire (95) is connected to the first pipeline (2). The wire (95) is slidably connected to the connecting pipe (93), the baffle (96) is slidably connected to the mounting frame (91) and can slide forward and backward, and the baffle (96) slides through the first pipe (2), so that the baffle (96) moves backward to block the mud in the first pipe (2), the pull wire (95) is connected to the take-up ring (94) and the baffle (96), so that the take-up ring (94) rotates to reel in the wire (95) and pull the baffle (96) forward, and the compression spring (97) connects the baffle (96) and the mounting frame (91) so that the baffle (96) slides backward to reset.

2. A flow-blocking eccentric hemispherical valve for mud according to claim 1, characterized in that: The flushing mechanism (10) is also included. The flushing mechanism (10) includes a mounting plate (101), a high-pressure water pump (102), a water inlet pipe (103), a connecting tube (104), a fixing tube (105), a connecting frame (106), a nozzle (107) and a connecting spring (108). The mounting plate (101) is connected to the valve body (1), the high-pressure water pump (102) is connected to the mounting plate (101), the water inlet of the high-pressure water pump (102) is connected to the water inlet pipe (103), and the water outlet of the high-pressure water pump (102) is connected to the connecting tube (104). The fixed tube (105) is connected to the connecting tube (104), the connecting frame (106) is slidably connected to the fixed tube (105) and can slide left and right, the nozzle (107) is connected to the connecting frame (106), the nozzle (107) slides through the connecting tube (104) and the valve body (1), the nozzle (107) slides to the right and can extend into the valve body (1), so that the nozzle (107) can spray water to clean the inner wall of the valve body (1), and the connecting spring (108) connects the fixed tube (105) and the connecting frame (106) so that the nozzle (107) elastically resets to the left.

3. A flow-blocking eccentric hemispherical valve for mud according to claim 2, characterized in that: The invention also includes a collecting mechanism (11), which includes a guide rail (111), a collecting frame (112) and a fixing assembly. The second pipe (3) is symmetrically connected to the two guide rails (111). The collecting frame (112) is slidably connected to the guide rails (111) and can slide left and right, so that the collecting frame (112) can slide to the right and extend into the second pipe (3) to collect wastewater. The collecting frame (112) is provided with a drain port (1121) for draining water. The fixing assembly is used to fix the position of the collecting frame (112).

4. A flow-blocking eccentric hemispherical valve for mud according to claim 3, characterized in that: The fixing assembly includes a magnet (113) and a handle (114). The magnet (113) is rotatably connected to the collection frame (112) and can swing left and right. The magnet (113) can attract the second pipe (3) to fix the position of the collection frame (112). The handle (114) is connected to the magnet (113).

5. A flow-blocking eccentric hemispherical valve for mud according to claim 4, characterized in that: The collecting frame (112) further comprises a guide rod (121) and a baffle (122). The guide rod (121) is symmetrically connected to the collecting frame (112). The baffle (122) is slidably connected to the guide rod (121) and can slide up and down. The baffle (122) can block the left side of the drain outlet (1121).

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