Sewage valve capable of being precisely adjusted

Abstract

The invention relates to the technical field of sewage valves, in particular to a precisely adjustable sewage valve which comprises a supporting pipe, supporting seats are fixed to the two sides of the interior of the supporting pipe, sealing blocks are fixed to the inner top and the inner bottom of the supporting pipe, and a water-saving filtering part is rotationally arranged between the two supporting seats. The water-saving filtering piece comprises two rectangular boxes which are rotationally attached to each other, and a rotating pipe which is rotationally connected with the supporting seat at the corresponding position is fixed on one side of each rectangular box. According to the sewage treatment device, the rectangular boxes are driven by the driving mechanism to rotate, so that gaps between the rectangular boxes and the sealing blocks are gradually reduced, the effect of gradually reducing the sewage circulation pressure is achieved, the two rectangular boxes are horizontally arranged and vertically arranged, and the horizontally arranged rectangular boxes can discharge sewage; the vertically arranged rectangular box is convenient for opening the sealing plug to clean impurities on the filter screen plate, so that impurity cleaning and sewage circulation of the valve are synchronously carried out, and the efficiency of impurity cleaning and sewage discharge of the valve is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sewage valves, in particular to a precisely adjustable sewage valve. Background Art

[0002] Various process equipment in sewage treatment plants (such as aerators, mixers, sedimentation tanks, etc.) need to transport sewage through connected process pipelines. These pipelines are responsible for transporting sewage from one treatment unit to another to achieve gradual purification of sewage. In order to maintain the water pressure in the pipeline within the pressure range that the process equipment can withstand, valves are generally installed on the pipeline to control the flow pressure and speed of sewage inside the pipeline by adjusting the opening and closing degree of the valve disc;

[0003] Although most valves installed on pipelines can control water pressure by saving water, it is not easy for users to know the changes in water pressure inside the pipeline before and after adjusting the valve, resulting in poor effect of traditional valves in the process of precise water pressure regulation. In addition, sewage generally contains solid impurities. The impurities that enter the valve are not easy to be cleaned synchronously during the process of the valve adjusting the water pressure. Stopping the water supply in the pipeline to clean the impurities inside the valve will reduce the efficiency of sewage transportation. Summary of the invention

[0004] The object of the present invention is to provide a precisely adjustable sewage valve to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A precisely adjustable sewage valve, comprising:

[0007] A support tube, wherein two support seats and two sealing blocks are fixed inside the support tube;

[0008] A water-saving filter element is rotatably arranged between two support seats, and the water-saving filter element includes two rotatably abutting rectangular boxes, a rotating tube rotatably connected to the support seats at corresponding positions is fixed on one side of the rectangular box, and a water baffle plate 1 and a water baffle plate 2 are respectively unidirectionally rotatably installed at both ends of the interior of the rectangular box;

[0009] A sealing plug is detachably installed and fixed inside the rotating tube to seal the rotating tube;

[0010] Two driving mechanisms are provided on both sides of the support tube, and the driving mechanism comprises a shaft connected to the support seat at the corresponding position for rotation, and the shaft is meshed with the rotating tube at the corresponding position for transmission;

[0011] The filter bucket is installed and fixed on one end of the supporting tube, and the small-diameter end of the filter bucket is arranged at one end of the two rectangular boxes.

[0012] Furthermore, connecting shafts are fixed at both ends of the rectangular box, the water baffle plate 1 and the water baffle plate 2 are respectively rotatably connected to the connecting shafts at corresponding positions, and torsion springs are respectively sleeved between the water baffle plate 1 and the water baffle plate 2 and the connecting shafts at corresponding positions.

[0013] Furthermore, the bottom surfaces of the two ends of the rectangular box are respectively provided with an arc-shaped notch 1 and an arc-shaped notch 2, and the bottom surfaces of the water retaining plate 1 and the water retaining plate 2 are both arc-shaped.

[0014] Furthermore, both ends of the support pipe are connected and fixed with connecting pipes, and one end of the connecting pipe is fixed with a connecting flange.

[0015] Furthermore, the top surface of the sealing block is configured as an arc-shaped surface, both ends of the rectangular box are arc-shaped, and a sealing rubber sleeve is sleeved and fixed on the top surface of the sealing block.

[0016] Furthermore, one end of the two support pipes close to each other is connected and fixed, and the other ends of the two support pipes are respectively connected and fixed with a water inlet pipe and a drainage pipe, and water pressure gauges are installed and fixed on the outside of the water inlet pipe and the drainage pipe.

[0017] Further, the driving mechanism further comprises:

[0018] A worm, sleeved and fixed on the bottom end of the shaft, the worm is used for rotating the pipe meshing transmission;

[0019] The rotating wheel is fixed on the top of the shaft.

[0020] Furthermore, a worm wheel is fixed on the outer side of the rotating tube, the worm wheel and the worm are meshed for transmission, and fixing seats are fixed on both sides of the top of the supporting tube, and the fixing seats are rotatably connected to the shaft at the corresponding position.

[0021] Furthermore, two circular holes are provided on the outer side of the support tube and are respectively connected with the rotating tubes at corresponding positions, and the sealing plugs are placed inside the circular holes.

[0022] Furthermore, the sealing plug is screwed and connected with a rotating tube at a corresponding position, and a toggle rod is fixed inside the sealing plug.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Two rectangular boxes are installed by rotating inside the support tube of the valve. In the initial state, the two rectangular boxes are arranged horizontally. When water flows through the valve from left to right, the two water baffles (including water baffle 1 and water baffle 2) are rotated to the right under the impact of sewage to open the rectangular box, so that part of the sewage entering the valve flows from the inside of the rectangular box to the drainage pipe, and part flows from the gap between the rectangular box and the sealing block to the drainage pipe, which is convenient for fully opening the valve to discharge sewage. By rotating the wheel, the shaft rod rotates with the rotating tube, and then the rotating tube rotates with the rectangular box clockwise. During the rotation of the rectangular box, the gap between the rectangular box and the sealing block gradually decreases, resulting in a reduction in the amount of sewage discharged through the gap, thereby gradually reducing the flow pressure and speed of sewage discharge as needed.

[0025] 2. The driving mechanism drives the rectangular box to rotate clockwise to a vertical state, that is, the two open ends of the rectangular box are respectively moved to the corresponding positions under the sealing blocks. At this time, the sealing blocks seal the two ends of the rectangular box, and the rectangular box is blocked inside the valve support tube. When the two rectangular boxes are rotated to the sealed position by the sealing blocks, the inside of the support tube is completely blocked by the rectangular boxes, thereby achieving the effect of throttling and controlling the flow of water.

[0026] 3. By rotating one rectangular box to a vertical state so that the sealing block blocks the open end of the rectangular box, the other rectangular box remains in a horizontal arrangement state to discharge sewage, and then loosen and remove the sealing plug on the sealed rectangular box, so that the rectangular box is connected to the outside through the rotating tube, which is convenient for users to clean the impurities filtered on the filter plate inside the rectangular box from the rotating tube position. In the process of cleaning impurities, the horizontally arranged rectangular box and the gap between the rectangular box and the sealing block are in a sewage discharge state, so that the pipeline will not be affected in the process of cleaning impurities inside the valve. The transportation of sewage through the valve is beneficial to improving the efficiency of valve impurity cleaning and sewage discharge.

[0027] 4. Use the driving mechanism to rotate the rectangular box 180 degrees clockwise, so that the second baffle plate on the rectangular box rotates to the water inlet, and the first baffle plate on the rectangular box rotates to the water outlet (refer to Figure 6 ), since the second water baffle plate can only rotate toward the inside of the rectangular box, and the first water baffle plate can move toward the outside of the rectangular box, the sewage at the water inlet cannot impact the second water baffle plate to open. At this time, the second water baffle plate can block the flow of sewage in a local area inside the valve. In the process of the water baffle plate blocking water, the rectangular box can also continue to rotate to gradually reduce the gap between the rectangular box and the sealing block, thereby further enhancing the water-saving and water flow control effect of the valve relative to beneficial effect 1, and facilitating the adjustment of the water pressure to an appropriate water pressure after the valve is connected to pipelines of different process equipment.

[0028] 5. By installing a filter bucket inside the valve support pipe, the filter bucket can filter all the sewage passing through the support pipe and transfer the impurities to the inside of the rectangular box, so that the transferred impurities can be cleaned up later by adjusting the position of the rectangular box. By installing two valves between the water inlet pipe and the drainage pipe, and installing water pressure gauges on both the water inlet pipe and the drainage pipe, the two water pressure gauges can facilitate users to know the water pressure before and after the valve adjustment. At the same time, the two rectangular boxes on each valve can be rotated to different positions independently to block sewage of different flows, which is convenient for precise regulation of the sewage transportation water pressure.

[0029] 6. By installing two valves in series, when the rectangular box on one valve rotates, the small-diameter end of the filter bucket will be separated from the opening of the rectangular box. At this time, the sewage impurities flowing from between the rectangular box and the sealing block will be intercepted for the second time by the filter bucket at the back, and then transported to the filter plate position inside the rectangular box at the back to prevent impurities from being missed. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the internal structure of the support tube in the present invention. Figure 1 ;

[0032] Figure 3 This is a schematic diagram of the internal structure of the support tube in the present invention. Figure 2 ;

[0033] Figure 4 It is a schematic diagram of the structure of the rectangular box in the present invention rotated to a vertical state;

[0034] Figure 5 It is a schematic structural diagram of the water retaining plate 1 and the water retaining plate 2 in the present invention in a rotating water releasing state;

[0035] Figure 6 It is a schematic diagram of the structure of the water retaining plate in the second water retaining state in the present invention;

[0036] Figure 7 It is a schematic diagram of the structure of the rectangular box in the present invention in a rotating and tilting state;

[0037] Figure 8 It is a structural schematic diagram of the connection state of two valves in the present invention.

[0038] In the figure: 100, support tube; 110, support seat; 120, sealing block; 130, fixing seat; 140, connecting pipe; 200, water-saving filter element; 210, rectangular box; 211, arc-shaped notch one; 212, arc-shaped notch two; 220, rotating tube; 221, worm gear; 230, water baffle one; 240, water baffle two; 250, filter plate; 300, sealing plug; 400, driving mechanism; 410, shaft; 420, worm; 430, rotating wheel; 500, filter bucket; 600, water inlet pipe; 700, drainage pipe; 800, water pressure gauge. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] For example, see Figure 1 - Figure 8 In an embodiment of the present invention, a precisely adjustable sewage valve includes a support pipe 100, support seats 110 are fixed on both sides of the support pipe 100, sealing blocks 120 are fixed on the inner top and inner bottom of the support pipe 100, a water-saving filter 200 is rotatably arranged between the two support seats 110, and the water-saving filter 200 includes two rotatably abutting rectangular boxes 210, a rotating tube 220 rotatably connected to the corresponding support seat 110 is fixed on one side of the rectangular box 210, and the rotating tube 220 is connected to the rectangular box 210, and the inside of the rectangular box 210 Water baffle plate 1 230 and water baffle plate 2 240 are respectively installed at both ends for one-way rotation, a sealing plug 300 is detachably installed and fixed inside the rotating tube 220, a driving mechanism 400 for driving the water-saving filter element 200 to rotate is arranged inside the support seat 110, the driving mechanism 400 includes a shaft rod 410 rotatably connected to the corresponding support seat 110, the shaft rod 410 is meshed with the corresponding rotating tube 220 for transmission, a filter bucket 500 is detachably installed and fixed at one end of the support tube 100, and the small-diameter end of the filter bucket 500 is arranged at one end of the two rectangular boxes 210.

[0041] Specifically, two rectangular boxes 210 are installed and rotated inside the valve support tube 100, and the rectangular box 210 is driven to rotate by the driving mechanism 400. During the rotation of the rectangular box 210, the gap between the rectangular box 210 and the sealing block 120 is gradually reduced, so as to achieve the effect of gradually reducing the sewage circulation pressure. The rectangular box 210 is rotated to the position between the two sealing blocks 120 to seal and block the open end of the rectangular box 210. At this time, the rectangular box 210 as a whole can block the flow of sewage, so as to further reduce the sewage circulation pressure. When both rectangular boxes 210 are rotated, When it reaches the position between the two sealing blocks 120, the valve support tube 100 is completely blocked and throttled for sewage. By installing a filter plate 250 inside the rectangular box 210, the filter plate 250 can filter impurities in the sewage, so that the two rectangular boxes 210 can be arranged horizontally and vertically respectively. The horizontally arranged rectangular box 210 can discharge sewage, and the vertically arranged rectangular box 210 is convenient for opening the sealing plug 300 to clean the impurities on the filter plate 250, so that the valve can clean the impurities and the sewage can flow synchronously, which is beneficial to improving the efficiency of valve impurity cleaning and sewage discharge.

[0042] like Figure 4 As shown, in this embodiment, a filter plate 250 is fixed at an angle inside the rectangular box 210. The filter plate 250 can intercept impurities passing through the inside of the valve. At the same time, the inclined arrangement of the filter plate 250 can make the intercepted impurities tend to gather under the filter plate 250, which is convenient for subsequent centralized cleaning of impurities on the filter plate 250.

[0043] In this embodiment, connecting shafts are fixed at both ends of the rectangular box 210, and the water baffle plate 1 230 and the water baffle plate 240 are respectively rotatably connected to the connecting shafts at corresponding positions. A torsion spring is sleeved between the water baffle plate 1 230 and the water baffle plate 240 and the connecting shafts at corresponding positions. During the clockwise rotation of the rectangular box 210, when the open end of the rectangular box 210 is not facing the flow direction of the sewage, the impact force of the sewage on the water baffle plate 1 230 is reduced, and the sewage no longer flows into the rectangular box 210 in large quantities, so that the sewage circulation pressure inside the rectangular box 210 is relatively small. At this time, under the elastic force of the torsion spring and the gravity of the water baffle plate (including the water baffle plate 1 230 and the water baffle plate 240) itself, it will rotate toward the rectangular box 210, so that the two water baffle plates block the two openings of the rectangular box 210, so that the rectangular box 210 can be rotated and sealed between the two sealing blocks 120.

[0044] like Figure 5As shown, in the present embodiment, arc-shaped notch 1 211 and arc-shaped notch 212 are respectively provided on the bottom surfaces at both ends of the rectangular box 210, and the bottom surfaces of water baffle plate 1 230 and water baffle plate 2 240 are both arc-shaped, so that water baffle plate 1 230 can only rotate toward the inside of the rectangular box 210 under the impact of sewage, and water baffle plate 2 240 can only move toward the outside of the rectangular box 210 under the impact of sewage, so that after the rectangular box 210 rotates 180 degrees clockwise, the impact force of the sewage cannot cause water baffle plate 240 to move toward the outside of the rectangular box 210, thereby blocking the port of the rectangular box 210.

[0045] like Figure 2 As shown, in this embodiment, both ends of the support pipe 100 are connected and fixed with a connecting pipe 140, and one end of the connecting pipe 140 is fixed with a connecting flange, so that the support pipe 100 on the valve can be connected and fixed with the external water inlet pipe 600 and the drainage pipe 700 through the flange on the connecting pipe 140.

[0046] like Figure 3 and Figure 4 As shown, in this embodiment, the top surface of the sealing block 120 is set to an arc surface, and both ends of the rectangular box 210 are arc-shaped. A sealing rubber sleeve is fixed to the top surface of the sealing block 120, so that after the rectangular box 210 is rotated to the position between the two sealing blocks 120, the end of the rectangular box 210 is blocked by the sealing block 120 at the corresponding position, so that the rectangular box 210 can block the flow of sewage in a local area inside the support pipe 100.

[0047] like Figure 3 As shown, in this embodiment, the driving mechanism 400 also includes a worm 420 fixed to the bottom end of the shaft 410, and the worm 420 is used for meshing transmission of the rotating tube 220. A rotating wheel 430 is fixed to the top of the shaft 410, and a worm wheel 221 is fixed to the outside of the rotating tube 220, and the worm wheel 221 meshes with the worm 420 for transmission.

[0048] In this embodiment, when the position of the rectangular box 210 needs to be adjusted, the rotating wheel 430 is rotated to cause the shaft 410 to rotate with the worm 420, and the worm 420 then rotates with the worm wheel 221, and the worm wheel 221 rotates with the rotating tube 220 to rotate the rectangular box 210 to adjust the position. Similarly, rotating the rotating wheel 430 in the opposite direction will cause the shaft 410 to drive the rectangular box 210 to rotate in the opposite direction and return to the initial position.

[0049] In the above embodiment, the two sides of the top of the support tube 100 are fixed with a fixing seat 130, and the fixing seat 130 is rotatably connected with the shaft 410 at the corresponding position. The fixing seat 130 enables the shaft 410 to stably rotate on the support tube 100. Figure 3As shown, a receiving chamber for receiving the worm wheel 221 , the worm 420 and the rotating tube 220 is provided inside the supporting base 110 , so that the driving mechanism 400 can be installed inside the supporting base 110 to drive the rectangular box 210 to rotate and adjust the position.

[0050] like Figure 1 - Figure 3 In the embodiment of the present invention, two circular holes are opened on the outside of the support tube 100 and are respectively connected to the rotating tube 220 at the corresponding position. The sealing plug 300 is placed inside the circular hole. When it is necessary to clean the impurities filtered inside the rectangular box 210, the sealing plug 300 can be loosened and removed, and then the rotating tube 220 can be used to clean the impurities inside the rectangular box 210.

[0051] like Figure 3 As shown, in this embodiment, the sealing plug 300 is screwed together with the rotating tube 220 at the corresponding position, and a toggle rod is fixed inside the sealing plug 300. Holding and rotating the toggle rod can drive the sealing plug 300 to screw together and rotate on the rotating tube 220, making it convenient to remove and install the sealing plug 300 into the rotating tube 220.

[0052] like Figure 6 and Figure 7 As shown, in this embodiment, the length of the arc surface of the sealing block 120 at the top position of the support tube 100 is greater than the length of the arc surface of the sealing block 120 at the bottom position of the support tube 100. During the clockwise rotation of the rectangular box 210, the opening of the rectangular box 210 near the water retaining plate 230 is first blocked by the sealing block 120 at the top position, and the sewage no longer flows into the rectangular box 210, so that the water retaining plates at both ends of the rectangular box 210 can rotate and block at both ends of the rectangular box 210 under the synergistic effect of their own gravity and the elastic force of the torsion spring.

[0053] Embodiment 2, based on embodiment 1, is to achieve repeated filtration of impurities in sewage and precise adjustment of sewage circulation pressure inside the pipeline.

[0054] like Figure 8 As shown, in this embodiment, one end of the two support tubes 100 close to each other is connected and fixed, and the other ends of the two support tubes 100 are respectively connected and fixed with a water inlet pipe 600 and a drainage pipe 700, and a water pressure gauge 800 is installed and fixed on the outside of the water inlet pipe 600 and the drainage pipe 700.

[0055] Specifically, when two or more valves are installed in series between the water inlet pipe 600 and the drainage pipe 700, the rectangular boxes 210 at different positions can be driven to rotate individually by rotating the shaft 410 at different valve positions to block the flow of sewage. Multiple rectangular boxes 210 can be rotated as needed to flexibly adjust the flow pressure of sewage inside the drainage pipe 700.

[0056] In this embodiment, water pressure gauges 800 are installed in series on the water inlet pipe 600 and the drainage pipe 700. The water pressure gauge 800 on the water inlet pipe 600 can detect the initial circulation pressure of the sewage. When it is detected that the circulation pressure is relatively high, the regulating valve can be turned to throttle the sewage, and then observe whether the reading of the water pressure gauge 800 on the drainage pipe 700 meets the use requirements of the process equipment. The two water pressure gauges 800 cooperate with the rectangular box 210 that can be adjusted separately on multiple valves to facilitate users to precisely adjust the circulation pressure of the sewage transported by the drainage pipe 700.

[0057] It will be apparent to those skilled in the art that the 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 the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0058] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A precisely adjustable sewage valve, characterized in that: include: A support tube (100), wherein two support seats (110) and two sealing blocks (120) are fixed inside the support tube (100); A water-saving filter (200) is rotatably arranged between two support seats (110), the water-saving filter (200) comprising two rotatably abutting rectangular boxes (210), one side of the rectangular box (210) being fixed with a rotating tube (220) rotatably connected to the support seats (110) at corresponding positions, and two ends of the interior of the rectangular box (210) are respectively unidirectionally rotatably mounted with a first water baffle (230) and a second water baffle (240); A sealing plug (300) is detachably mounted and fixed inside the rotating tube (220) to seal the rotating tube (220); Two drive mechanisms (400) are arranged on both sides of the support tube (100), and the drive mechanism (400) comprises a shaft (410) rotatably connected to a support seat (110) at a corresponding position, and the shaft (410) is meshed with a rotating tube (220) at a corresponding position for transmission; The filter hopper (500) is installed and fixed on one end of the support tube (100), and the small-diameter end of the filter hopper (500) is arranged on one end of the two rectangular boxes (210).

2. The precisely adjustable sewage valve according to claim 1, characterized in that: Both ends of the rectangular box (210) are fixed with connecting shafts, and the first water baffle plate (230) and the second water baffle plate (240) are respectively rotatably connected to the connecting shafts at corresponding positions, and torsion springs are respectively sleeved between the first water baffle plate (230) and the second water baffle plate (240) and the connecting shafts at corresponding positions.

3. The precisely adjustable sewage valve according to claim 1, characterized in that: The bottom surfaces of the two ends of the rectangular box (210) are respectively provided with an arc-shaped notch 1 (211) and an arc-shaped notch 2 (212), and the bottom surfaces of the water retaining plate 1 (230) and the water retaining plate 2 (240) are both arc-shaped.

4. The precisely adjustable sewage valve according to claim 1, characterized in that: Both ends of the support pipe (100) are connected and fixed with a connecting pipe (140), and one end of the connecting pipe (140) is fixed with a connecting flange.

5. The precisely adjustable sewage valve according to claim 1, characterized in that: The top surface of the sealing block (120) is configured as an arc-shaped surface, both ends of the rectangular box (210) are arc-shaped, and a sealing rubber sleeve is sleeved and fixed on the top surface of the sealing block (120).

6. The precisely adjustable sewage valve according to claim 1, characterized in that: One end of the two support pipes (100) close to each other is connected and fixed, and the other ends of the two support pipes (100) are respectively connected and fixed with a water inlet pipe (600) and a drainage pipe (700), and water pressure gauges (800) are installed and fixed on the outside of the water inlet pipe (600) and the drainage pipe (700).

7. The precisely adjustable sewage valve according to claim 1, characterized in that: The driving mechanism (400) further comprises: A worm (420) is sleeved and fixed on the bottom end of the shaft (410), and the worm (420) is used for rotating the tube (220) to mesh with the transmission; The rotating wheel (430) is fixed on the top end of the shaft (410).

8. The precisely adjustable sewage valve according to claim 7, characterized in that: A worm wheel (221) is fixed on the outer side of the rotating tube (220), and the worm wheel (221) is meshed with the worm (420) for transmission. Fixed seats (130) are fixed on both sides of the top of the supporting tube (100), and the fixed seats (130) are rotatably connected to the shaft rod (410) at the corresponding position.

9. The precisely adjustable sewage valve according to claim 1, characterized in that: The support tube (100) has two circular holes on its outer side, which are respectively connected to the rotating tubes (220) at corresponding positions, and the sealing plug (300) is placed inside the circular holes.

10. The precisely adjustable sewage valve according to claim 9, characterized in that: The sealing plug (300) is screwed and connected to the rotating tube (220) at the corresponding position, and a toggle rod is fixed inside the sealing plug (300).

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