A vacuum flushing valve for a regulating reservoir capable of multiple flushings with one vacuum

Abstract

The present application relates to the technical field of regulating and storing tanks, and in particular to a vacuum flushing valve for regulating and storing tanks that can be used for multiple flushings with one vacuum, including a regulating and storing tank and an air pump, a vacuum valve body is provided on the regulating and storing tank, a leak-proof assembly for sealing is provided between the vacuum valve body and the regulating and storing tank, a plurality of cavity plates are provided in the vacuum valve body, the plurality of cavity plates divide the cavity in the vacuum valve body into a plurality of independent vacuum chambers, each cavity plate is connected to a control valve electrically connected to a control system, an air extraction pipe is connected between the air pump and the vacuum chamber, a return air pipe is connected between the regulating and storing tank and the air pump, a vacuum baffle is provided in the regulating and storing tank, a plurality of flushing plates are provided in the regulating and storing tank, there is a distance between the vacuum baffle and the flushing plate and the bottom of the regulating and storing tank, a plurality of flushing plates divide the cavity between the vacuum baffle and the regulating and storing tank into a plurality of flushing chambers, and the flushing chambers correspond to and are connected to the vacuum chambers one by one. The present application has the effect of multiple flushings with one vacuum extraction and automatic air leakage prevention.

Description

Technical Field

[0001] The present application relates to the technical field of regulating reservoirs, and in particular to a regulating reservoir vacuum flushing valve capable of one-time vacuum flushing and multiple flushing. Background Art

[0002] A storage tank is a water conservancy facility used to store and regulate water flow. It is often used in rainwater collection and utilization systems, sewage treatment systems or irrigation systems to help balance and regulate water flow. Storage tanks can collect excess rainwater when there is a lot of rain for use in dry periods, or play a buffering and storage role in sewage treatment.

[0003] A storage tank vacuum flushing valve is a valve device used for flushing a storage tank (also called a regulating tank or an equalizing tank). Its function is to complete the flushing process by controlling the flow of fluid (usually water). This valve is usually combined with a vacuum system to enhance the flushing effect by using the negative pressure generated by the vacuum.

[0004] A Chinese patent with announcement number CN208121945U discloses a circular structure rainwater and flood water regulating tank vacuum intelligent flushing equipment, including a vacuum air conditioning tank and a municipal rainwater and flood water pipeline. The vacuum air conditioning tank is directly connected to the municipal rainwater and flood water pipeline or connected to the municipal rainwater and flood water pipeline through a bypass pipeline. It also includes a vacuum water storage chamber, a vacuum valve, a vacuum connecting pipe and a control cabinet. The vacuum air conditioning tank and the vacuum water storage chamber are respectively circular structures. The vacuum water storage chamber is arranged at the center position in the vacuum air conditioning tank. A vacuum water storage chamber outlet is arranged at the bottom of the vacuum water storage chamber. The vacuum water storage chamber is connected to the vacuum air conditioning tank through the vacuum water storage chamber outlet. A vacuum valve is arranged on the top of the vacuum water storage chamber. The vacuum valve is connected to the vacuum pump in the control cabinet through a vacuum connecting pipe. The vacuum valve, submersible sewage drainage pump and vacuum pump are respectively connected to the control circuit in the control cabinet through connecting wires.

[0005] The above technology can only flush the regulating reservoir once with one vacuum pumping. However, in actual use, one flushing is often unable to completely flush away the sediment deposited at the bottom of the regulating reservoir or in the pipe. Therefore, there is an urgent need for a flushing device that can achieve multiple flushings with one vacuum pumping. Summary of the invention

[0006] In order to improve the problem that a storage tank cannot be flushed multiple times with one vacuum pumping, the present application provides a storage tank vacuum flushing valve that can flush multiple times with one vacuum pumping.

[0007] The present application provides a vacuum flushing valve for a regulating reservoir with multiple flushings using a vacuum once, which adopts the following technical solution:

[0008] A vacuum flushing valve for a regulating tank with one-time vacuum and multiple flushings comprises a regulating tank and an air pump, wherein a vacuum valve body is arranged on the regulating tank, a leak-proof component for sealing is arranged between the vacuum valve body and the regulating tank, a plurality of cavity plates are arranged in the vacuum valve body, the plurality of cavity plates divide the cavity in the vacuum valve body into a plurality of independent vacuum chambers, each of the cavity plates is connected to a control valve electrically connected to a control system, an exhaust pipe is connected between the air pump and the vacuum chamber, an air return pipe is connected between the regulating tank and the air pump, a vacuum baffle is arranged in the regulating tank, a plurality of flushing plates are arranged in the regulating tank, a distance between the vacuum baffle and the flushing plate and the bottom of the regulating tank is provided, the plurality of flushing plates divide the cavity between the vacuum baffle and the regulating tank into a plurality of flushing chambers, and the flushing chambers correspond to and are connected with the vacuum chambers one by one.

[0009] By adopting the above technical scheme, the air pump draws out the air in the vacuum chamber through the exhaust pipe, and the air flows back into the storage tank through the return pipe. The air pressure in the flushing chamber connected to the vacuum chamber drops, and the liquid in the storage tank flows into the flushing chamber through the gap between the vacuum partition and the bottom of the storage tank. The liquid in the flushing chamber rises, and the liquid level in the storage tank drops. When flushing is required, the worker opens multiple control valves in sequence and at intervals through the control system, and the outside air flows into the vacuum chamber through the control valve, and the liquid level in the flushing chamber drops rapidly, so that the storage tank and the municipal pipeline connected to it are flushed multiple times.

[0010] Optionally, a liquid level gauge and a pressure transmitter electrically connected to a control system are provided on the cavity plate.

[0011] By adopting the above technical solution, the liquid level meter and the pressure transmitter can timely feedback the changes in the air pressure in the vacuum chamber and the changes in the liquid height in the flushing chamber, which is convenient for workers to operate and helps to reduce the labor intensity of workers.

[0012] Optionally, the vacuum valve body includes a buried tube and a vacuum tube located above the buried tube, a sealing ring is arranged between the vacuum tube and the buried tube, the cavity plate is arranged on the vacuum tube, a plurality of intermediate partitions are arranged on the buried tube, the intermediate partitions divide the buried tube into a plurality of intermediate chambers, the intermediate chambers correspond one-to-one to the vacuum chambers and are connected, and the buried tube and the bottom of the intermediate partitions are arranged on the flushing plate.

[0013] By adopting the above technical solution, the buried pipe and the vacuum tube are designed separately, which makes it convenient for workers to replace and repair the equipment on the cavity plate, thereby reducing the maintenance cost for workers.

[0014] Optionally, a silencer shell is provided on the vacuum tube, and a plurality of silencer holes are opened on the silencer shell.

[0015] By adopting the above technical solution, when the control valve is opened, the outside air reduces noise through the silencer holes on the silencer shell, thereby reducing the noise when the air flows rapidly into the vacuum chamber through the control valve and reducing the impact on the environment.

[0016] Optionally, the anti-leakage component includes a crack-repairing shell arranged on the buried pipe, the crack-repairing shell is hollow inside and open on one side of the regulating reservoir, the open end of the crack-repairing shell is inserted into the regulating reservoir, a slot for inserting the crack-repairing shell is provided on the regulating reservoir, the slot is filled with sealant, a patching block is detachably provided on the crack-repairing shell, and the crack-repairing shell is filled with a crack-repairing agent.

[0017] By adopting the above technical solution, the worker first applies sealant in the slot, then welds the crack-repairing shell to the buried pipe, and inserts the open edge of the crack-repairing shell into the slot. After the sealant solidifies, the worker unscrews the patching block, then fills the crack-repairing agent into the cavity between the crack-repairing shell and the storage tank, and finally re-screws the patching block.

[0018] Optionally, the crack repairing agent includes highly absorbent resin, quartz sand and cement powder.

[0019] By adopting the above technical solution, when cracks occur at the contact position between the regulating reservoir and the buried pipe, and when the air pump evacuates the vacuum chamber, negative pressure will be formed in the flushing chamber, and the negative pressure will be transmitted to the crack-repairing shell through the crack. The mixed powder of super absorbent resin, quartz sand and cement powder in the crack-repairing shell will be sucked into the crack, and then the super absorbent resin will rapidly expand by absorbing the moisture diffused into the crack. After absorbing water, the super absorbent resin carries the cement powder to quickly fill the crack. The cement powder absorbs the water in the super absorbent resin to react and solidify, thereby repairing the crack between the regulating reservoir and the buried pipe.

[0020] Optionally, concrete is poured on the regulating reservoir, an outer protective ring is provided on the concrete, an inner protective ring is provided on the buried pipe, a buffer air bag is provided between the outer protective ring and the inner protective ring, an air replenishing valve is provided on the buffer air bag, a cover plate is provided on the inner protective ring, and the cover plate is slidably matched with the outer protective ring.

[0021] By adopting the above technical solution, when the concrete vibrates, the vibration will be weakened by the friction between the cover plate and the outer protective ring due to the obstruction of the buffer airbag, thereby reducing the possibility of cracks between the buried pipe and the concrete due to vibration, and at the same time reducing the vibration amplitude transmitted to the storage tank through the buried pipe.

[0022] Optionally, an extrusion airbag is provided in the crack repair shell, and the extrusion airbag is connected to the buffer airbag.

[0023] By adopting the above technical solution, the extrusion airbag always presses the crack-repairing agent against the regulating reservoir. When the negative pressure is transmitted to the crack-repairing shell through the crack, the extrusion airbag will expand and always press the crack-repairing agent against the regulating reservoir, so that the crack-repairing agent can be quickly replenished into the cracks on the regulating reservoir, thereby achieving the effect of automatic and timely repair. At the same time, workers can adjust the pressure changes inside the extrusion airbag through the buffer airbag.

[0024] Optionally, a slope protection is provided at the bottom of the regulating reservoir, and the slope protection is located on the side of the vacuum partition facing away from the flushing plate, and the height of the slope protection is higher than the distance between the vacuum partition and the bottom of the regulating reservoir.

[0025] By adopting the above technical solution, when the liquid in the flushing chamber drops rapidly, the slope protection reduces the possibility that the liquid in the remaining flushing chambers will be drained away, which is conducive to achieving the effect of multiple flushing.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The air pump extracts the air in the vacuum chamber through the exhaust pipe, and the air flows back to the storage tank through the return pipe. The air pressure in the flushing chamber connected to the vacuum chamber drops, and the liquid in the storage tank flows into the flushing chamber through the gap between the vacuum baffle and the bottom of the storage tank. The liquid in the flushing chamber rises, and the liquid level in the storage tank drops. When flushing is required, the worker opens multiple control valves in sequence and at intervals through the control system, and the outside air flows into the vacuum chamber through the control valve, and the liquid level in the flushing chamber drops rapidly, thereby flushing the storage tank and the municipal pipeline connected to it multiple times;

[0028] 2. When cracks occur at the contact position between the regulating reservoir and the buried pipe, and the air pump evacuates the vacuum chamber, negative pressure will be formed in the flushing chamber, and the negative pressure will be transmitted to the crack repair shell through the crack. The mixed powder of super absorbent resin, quartz sand and cement powder in the crack repair shell will be sucked into the crack, and then the super absorbent resin will expand rapidly by absorbing the water diffused into the crack. After absorbing water, the super absorbent resin carries cement powder to quickly fill the crack. The cement powder absorbs the water in the super absorbent resin and reacts and solidifies, thereby repairing the crack between the regulating reservoir and the buried pipe;

[0029] 3. When the concrete vibrates, the vibration will be weakened by the friction between the cover plate and the outer protective ring under the obstruction of the buffer airbag, thereby reducing the possibility of cracks between the buried pipe and the concrete due to vibration, and at the same time reducing the vibration amplitude transmitted to the storage tank through the buried pipe;

[0030] 4. The squeezing airbag always presses the crack-repairing agent against the regulating reservoir. When the negative pressure is transmitted to the crack-repairing shell through the crack, the squeezing airbag will expand and always press the crack-repairing agent against the regulating reservoir, so that the crack-repairing agent can be quickly added to the cracks on the regulating reservoir, thereby achieving the effect of automatic and timely repair. At the same time, workers can adjust the pressure changes inside the squeezing airbag through the buffer airbag. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.

[0032] Figure 2 It is a cross-sectional view showing the positional relationship among the regulating reservoir, vacuum tube and buried pipe in the embodiment of the present application.

[0033] Figure 3 yes Figure 2 Enlarged view of part A.

[0034] Figure 4 yes Figure 2 Magnified view of part B.

[0035] Explanation of the reference numerals: 1. regulating reservoir; 2. air pump; 3. vacuum valve body; 31. buried pipe; 32. vacuum tube; 33. sealing ring; 34. middle partition; 35. middle chamber; 4. leak-proof component; 41. crack repair shell; 42. slot; 43. filling block; 44. crack repair agent; 441. super absorbent resin; 442. quartz sand; 443. cement powder; 5. cavity plate; 6. vacuum chamber; 7. control valve; 8. exhaust pipe; 9. return pipe; 10. vacuum partition; 11. flushing plate; 12. flushing chamber; 13. liquid level gauge; 14. pressure transmitter; 15. silencer shell; 16. silencer hole; 17. concrete; 18. outer protective ring; 19. inner protective ring; 20. buffer air bag; 21. air supply valve; 22. cover plate; 23. extrusion air bag; 24. slope protection; 25. hose. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-Figure 4 This application is described in further detail.

[0037] The embodiment of the present application discloses a vacuum flushing valve for a regulating tank capable of multiple flushings with one vacuum.

[0038] Reference Figure 1A vacuum flushing valve for a regulating tank with one-time vacuum and multiple flushing includes a regulating tank 1 and an air pump 2 electrically connected to a control system, a vacuum valve body 3 is arranged on the regulating tank 1, the vacuum valve body 3 includes a buried pipe 31 and a vacuum tube 32 bolted to the top of the buried pipe 31, a silencer shell 15 is bolted to the vacuum tube 32, a plurality of silencer holes 16 are opened on the silencer shell 15, a sealing ring 33 is arranged between the vacuum tube 32 and the buried pipe 31, and a leak-proof component 4 for sealing is arranged between the buried pipe 31 and the regulating tank 1.

[0039] Reference Figure 2 , Figure 3 and Figure 4 A plurality of cavity plates 5 are welded in the vacuum tube 32, and a liquid level gauge 13 and a pressure transmitter 14 electrically connected to the control system are bolted to each cavity plate 5. The plurality of cavity plates 5 divide the cavity in the vacuum tube 32 into a plurality of independent vacuum chambers 6, and each cavity plate 5 is connected to a control valve 7 electrically connected to the control system. The control valve 7 adopts a vacuum diaphragm valve in the prior art.

[0040] Reference Figure 2 , Figure 3 and Figure 4 A plurality of intermediate partitions 34 are welded on the buried pipe 31, and the intermediate partitions 34 divide the buried pipe 31 into a plurality of intermediate chambers 35, and the intermediate chambers 35 correspond to and are connected with the vacuum chambers 6 one by one. An exhaust pipe 8 is connected between the air pump 2 and the vacuum chamber 6, and an air return pipe 9 is connected between the regulating tank 1 and the air pump 2. A vacuum partition 10 is welded in the regulating tank 1, and a plurality of flushing plates 11 are welded in the regulating tank 1. The bottom of the buried pipe 31 and the bottom of the intermediate partition 34 are welded to the flushing plate 11.

[0041] Reference Figure 2 , Figure 3 and Figure 4 There is a distance between the vacuum partition 10 and the flushing plate 11 and the bottom of the regulating tank 1. Multiple flushing plates 11 divide the cavity between the vacuum partition 10 and the regulating tank 1 into multiple flushing chambers 12. The flushing chambers 12 correspond to the intermediate chambers 35 one by one and are connected. A slope protection 24 is welded on the bottom of the regulating tank 1. The slope protection 24 is located on the side of the vacuum partition 10 facing away from the flushing plate 11. The height of the slope protection 24 is higher than the distance between the vacuum partition 10 and the bottom of the regulating tank 1.

[0042] The worker starts the air pump 2 through the control system. The air pump 2 draws out the air in the vacuum chamber 6 through the exhaust pipe 8, and flows it back into the storage tank 1 through the return pipe 9. The air pressure in the intermediate chamber 35 and the flushing chamber 12 connected to the vacuum chamber 6 continues to decrease. The pressure transmitter 14 transmits the pressure change to the control system. The liquid in the storage tank 1 flows into the flushing chamber 12 through the gap between the vacuum partition 10 at the slope protection 24 and the bottom of the storage tank 1.

[0043] The liquid in the flushing chamber 12 continues to rise until the liquid rises to a certain position in the intermediate chamber 35, and the liquid level meter 13 is triggered. During this process, the liquid level in the regulating tank 1 continues to drop. When flushing is required, the control system opens multiple control valves 7 in sequence and after a period of time. The outside air flows into the vacuum chamber 6 through the silencer hole 16 on the silencer shell 15 and then through the control valve 7. The air pressure in the flushing chamber 12 quickly becomes the same as the atmospheric pressure, causing the liquid level in the flushing chamber 12 to drop rapidly, thereby performing multiple flushing on the regulating tank 1 and the municipal pipeline connected to it.

[0044] Reference Figure 2 , Figure 3 and Figure 4 The leak-proof component 4 includes a crack-repairing shell 41 welded to the buried pipe 31. The crack-repairing shell 41 is hollow inside and open at the bottom. The open end of the crack-repairing shell 41 is inserted into the regulating reservoir 1. The regulating reservoir 1 is provided with a slot 42 for the crack-repairing shell 41 to be inserted. The slot 42 is filled with sealant. A patching block 43 is bolted to the crack-repairing shell 41. The crack-repairing shell 41 is filled with a crack-repairing agent 44. The crack-repairing agent 44 is made of a mixed powder of a highly absorbent resin 441, quartz sand 442 and cement powder 443.

[0045] Reference Figure 2 , Figure 3 and Figure 4 Concrete 17 is poured on the regulating reservoir 1, an outer protective ring 18 is pre-buried on the concrete 17, an inner protective ring 19 is welded on the buried pipe 31, the cross-sections of the outer protective ring 18 and the inner protective ring 19 are both C-shaped, a buffer air bag 20 is bonded between the outer protective ring 18 and the inner protective ring 19, an air replenishment valve 21 is arranged on the buffer air bag 20, a cover plate 22 is bolted to the inner protective ring 19, the cover plate 22 and the outer protective ring 18 are slidably matched, an extrusion air bag 23 is bonded to the inner top wall of the repair shell 41, and the extrusion air bag 23 is connected to the buffer air bag 20 through a hose 25.

[0046] During flushing, the rapid drop of liquid in the flushing chamber 12 will cause the vacuum tube 32 to vibrate, and the vibration will be transmitted to the buried tube 31. The buried tube 31 drives the inner protective ring 19 to vibrate, and the buffer airbag 20 is squeezed. The inner protective ring 19 drives the cover plate 22 to slide on the outer protective ring 18. The vibration amplitude of the inner protective ring 19 is weakened by the friction between the cover plate 22 and the outer protective ring 18. At the same time, the buffer airbag 20 transmits the vibration pressure to the squeezing airbag 23 through the hose 25. The squeezing airbag 23 expands so that the crack repairing agent 44 is pressed tightly against the regulating reservoir 1.

[0047] When a crack occurs at the position where the buried pipe 31 contacts the regulating reservoir 1, the squeezing airbag 23 will press the crack-repairing agent 44 into the crack. When the air pump 2 is pumping air, the negative pressure in the flushing chamber 12 will be transmitted to the crack-repairing shell 41 through the crack, and the crack-repairing agent 44 will be sucked into the crack. At the same time, the squeezing airbag 23 will squeeze the crack-repairing agent 44 in other parts into the crack. The super absorbent resin 441 in the crack absorbs the moisture diffused into the crack and expands rapidly. After absorbing water, the super absorbent resin 441 carries cement powder 443 and quartz sand 442 to quickly fill the crack. At the same time, the cement powder 443 absorbs the water in the super absorbent resin 441 to undergo a chemical reaction and solidify, thereby automatically repairing the crack.

[0048] The implementation principle of the vacuum flushing valve for a regulating tank with one vacuum and multiple flushings in an embodiment of the present application is as follows: a worker starts the air pump 2 through the control system, and the air pump 2 extracts the air in the vacuum chamber 6 through the exhaust pipe 8, and flows it back into the reservoir 1 through the return pipe 9. The air pressure in the intermediate chamber 35 connected to the vacuum chamber 6 and the flushing chamber 12 continues to decrease, and the pressure transmitter 14 transmits the pressure change to the control system. The liquid in the regulating tank 1 flows into the flushing chamber 12 through the gap between the vacuum partition 10 at the slope protection 24 and the bottom of the regulating tank 1.

[0049] The liquid in the flushing chamber 12 continues to rise until the liquid rises to a certain position in the intermediate chamber 35, and the liquid level meter 13 is triggered. During this process, the liquid level in the regulating tank 1 continues to drop. When flushing is required, the control system opens multiple control valves 7 in sequence and after a period of time. The outside air flows into the vacuum chamber 6 through the silencer hole 16 on the silencer shell 15 and then through the control valve 7. The air pressure in the flushing chamber 12 quickly becomes the same as the atmospheric pressure, causing the liquid level in the flushing chamber 12 to drop rapidly, thereby performing multiple flushing on the regulating tank 1 and the municipal pipeline connected to it.

[0050] During flushing, the rapid drop of liquid in the flushing chamber 12 will cause the vacuum tube 32 to vibrate, and the vibration will be transmitted to the buried tube 31. The buried tube 31 drives the inner protective ring 19 to vibrate, and the buffer airbag 20 is squeezed. The inner protective ring 19 drives the cover plate 22 to slide on the outer protective ring 18. The vibration amplitude of the inner protective ring 19 is weakened by the friction between the cover plate 22 and the outer protective ring 18. At the same time, the buffer airbag 20 transmits the vibration pressure to the squeezing airbag 23 through the hose 25. The squeezing airbag 23 expands so that the crack repairing agent 44 is pressed tightly against the regulating reservoir 1.

[0051] When a crack occurs at the position where the buried pipe 31 contacts the regulating reservoir 1, the squeezing airbag 23 will press the crack-repairing agent 44 into the crack. When the air pump 2 is pumping air, the negative pressure in the flushing chamber 12 will be transmitted to the crack-repairing shell 41 through the crack, and the crack-repairing agent 44 will be sucked into the crack. At the same time, the squeezing airbag 23 will squeeze the crack-repairing agent 44 in other parts into the crack. The super absorbent resin 441 in the crack absorbs the moisture diffused into the crack and expands rapidly. After absorbing water, the super absorbent resin 441 carries cement powder 443 and quartz sand 442 to quickly fill the crack. At the same time, the cement powder 443 absorbs the water in the super absorbent resin 441 to undergo a chemical reaction and solidify, thereby automatically repairing the crack.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A vacuum flushing valve for a regulating reservoir capable of multiple flushings with one vacuum, comprising a regulating reservoir (1) and an air pump (2), characterized in that: The regulating reservoir (1) is provided with a vacuum valve body (3), a leak-proof component (4) for sealing is provided between the vacuum valve body (3) and the regulating reservoir (1), a plurality of cavity plates (5) are provided in the vacuum valve body (3), the plurality of cavity plates (5) divide the cavity in the vacuum valve body (3) into a plurality of independent vacuum chambers (6), each cavity plate (5) is connected to a control valve (7) electrically connected to a control system, an exhaust pipe (8) is connected between the air pump (2) and the vacuum chamber (6), an air return pipe (9) is connected between the regulating reservoir (1) and the air pump (2), a vacuum diaphragm (10) is provided in the regulating reservoir (1), and a plurality of flushing plates are provided in the regulating reservoir (1). (11), there is a gap between the vacuum baffle (10) and the flushing plate (11) and the bottom of the regulating reservoir (1), a plurality of the flushing plates (11) divide the cavity between the vacuum baffle (10) and the regulating reservoir (1) into a plurality of flushing chambers (12), the flushing chambers (12) correspond to and are connected with the vacuum chambers (6) one by one, the vacuum valve body (3) comprises a buried pipe (31) and a vacuum tube (32) located above the buried pipe (31), a sealing ring (33) is provided between the vacuum tube (32) and the buried pipe (31), the cavity plate (5) is provided on the vacuum tube (32), a plurality of intermediate baffles (34) are provided on the buried pipe (31), the The middle partition (34) divides the buried pipe (31) into a plurality of middle chambers (35), the middle chambers (35) correspond to and are connected with the vacuum chamber (6) one by one, the buried pipe (31) and the bottom of the middle partition (34) are arranged on the flushing plate (11), the leak-proof component (4) comprises a crack-repairing shell (41) arranged on the buried pipe (31), the crack-repairing shell (41) is hollow inside and open toward one side of the regulating reservoir (1), the open end of the crack-repairing shell (41) is inserted into the regulating reservoir (1), the regulating reservoir (1) is provided with a slot (42) for the crack-repairing shell (41) to be inserted, the slot (42) is filled with sealant, and the crack-repairing shell (41) is inserted into the regulating reservoir (1). ) is detachably provided with a filling block (43), the crack repair shell (41) is filled with a repairing agent (44), the regulating reservoir (1) is poured with concrete (17), an outer protective ring (18) is provided on the concrete (17), an inner protective ring (19) is provided on the buried pipe (31), a buffer air bag (20) is provided between the outer protective ring (18) and the inner protective ring (19), an air filling valve (21) is provided on the buffer air bag (20), a cover plate (22) is provided on the inner protective ring (19), the cover plate (22) and the outer protective ring (18) are slidably matched, an extrusion air bag (23) is provided in the crack repair shell (41), and the extrusion air bag (23) is connected to the buffer air bag (20).

2. The vacuum flushing valve for a regulating tank capable of one-time vacuum flushing and multiple flushing according to claim 1, characterized in that: The cavity plate (5) is provided with a liquid level meter (13) and a pressure transmitter (14) which are electrically connected to the control system.

3. The vacuum flushing valve for a regulating tank capable of one-time vacuum flushing and multiple flushing according to claim 1, characterized in that: A silencer shell (15) is arranged on the vacuum tube (32), and a plurality of silencer holes (16) are opened on the silencer shell (15).

4. The vacuum flushing valve for a regulating tank capable of one-time vacuum flushing and multiple flushing according to claim 1, characterized in that: The crack repairing agent (44) comprises a highly water-absorbent resin (441), quartz sand (442) and cement powder (443).

5. The vacuum flushing valve for a regulating tank capable of one-time vacuum flushing and multiple flushing according to claim 1, characterized in that: A slope protection (24) is provided at the bottom of the regulating reservoir (1), the slope protection (24) is located on the side of the vacuum diaphragm (10) facing away from the flushing plate (11), and the height of the slope protection (24) is higher than the distance between the vacuum diaphragm (10) and the bottom of the regulating reservoir (1).

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