A negative pressure rural decentralized sewage treatment equipment

Abstract

This invention relates to the field of wastewater treatment technology, specifically to a negative pressure decentralized rural wastewater treatment device, comprising a temporary storage tank, a reaction tank, a suction pipe, two sedimentation tanks, two water valves, two drain pipes, a chemical storage tank, a vacuum pump, an mounting rod, a mounting ring, a first spring, a sealing block, a mounting shaft, a lever, and an impact block. The vacuum pump, when activated, creates negative pressure in the reaction tank, allowing wastewater in the temporary storage tank to rapidly enter through the suction pipe under atmospheric pressure. The water flow impacts the impact block, causing the lever to rotate and lift the mounting rod, compressing the first spring and causing the sealing block to move upward, opening the dispensing orifice to automatically add flocculant. As wastewater continues to flow in, flocculant is continuously added, achieving precise dosing based on water volume. When the water flow stops, the first spring causes the mounting rod to move downward and reset, pushing the sealing block downward to close the dispensing orifice, stopping flocculant addition. This allows for automatic and precise dosing of the appropriate amount of flocculant based on the wastewater inflow.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a negative pressure decentralized wastewater treatment device for rural areas. Background Technology

[0002] Rural domestic sewage treatment is an important part of my country's current efforts to improve the living environment and build beautiful villages. Currently, there are two main models for the collection and treatment of rural domestic sewage: one is centralized treatment after collection via gravity flow pipe networks, and the other is decentralized treatment by individual households. However, centralized treatment requires laying a large number of pipe networks, which is quite difficult; therefore, decentralized treatment is generally preferred.

[0003] Existing decentralized rural sewage treatment equipment typically employs a basic process of "collection-dosing-sedimentation". After the sewage is collected into the treatment tank, the operator manually adds flocculant based on experience, and then the supernatant is discharged after settling.

[0004] However, manually adding flocculant using the above method is not accurate enough. When the amount of flocculant added is insufficient, impurities will not settle completely and the effluent quality will not meet the standards. When the amount of flocculant added is excessive, it will result in waste of the agent and increased operating costs. Summary of the Invention

[0005] The purpose of this invention is to provide a negative pressure decentralized rural sewage treatment equipment that can automatically and precisely add an appropriate amount of flocculant according to the sewage inflow.

[0006] To achieve the above objectives, the present invention provides a negative pressure rural decentralized sewage treatment device, comprising a temporary storage tank, a reaction tank, a suction pipe, two sedimentation tanks, two water valves, two drain pipes, a chemical storage tank, a vacuum pump, a mounting rod, a mounting ring, a first spring, a sealing block, a mounting shaft, a lever, and an impact block; The reaction tank is located on one side of the temporary storage tank; one end of the suction pipe is connected to the temporary storage tank and the other end is connected to the reaction tank; the two sedimentation tanks are located below the temporary storage tank and the reaction tank; the two water valves are respectively fixedly installed at the bottom of the reaction tank and connected to the reaction tank; the top ends of the two drain pipes are respectively connected to the two water valves, and the bottom ends extend into the bottom of the two sedimentation tanks. The drug storage tank is fixedly installed at the top of the reaction tank; the vacuum pump is fixedly installed at the top of the reaction tank and communicates with the reaction tank; a drug discharge hole is provided on the top wall of the reaction tank, and the drug storage tank and the reaction tank communicate through the drug discharge hole; the mounting rod is vertically slidably installed on the top wall of the reaction tank, and the mounting rod passes through the top wall of the reaction tank; the mounting ring is fixedly installed on the mounting rod; the first spring is sleeved on the mounting rod, located above the mounting ring, and located inside the reaction tank; the sealing block is fixedly installed at one end of the mounting rod and located inside the drug storage tank; the mounting shaft is fixedly installed inside the reaction tank; the lever is rotatably installed on the mounting shaft; an impact block is fixedly installed at one end of the lever, and the other end of the lever contacts the bottom end of the mounting rod.

[0007] The negative pressure rural decentralized sewage treatment equipment also includes a first stirring shaft, multiple first stirring blades, and a first motor; The first stirring shaft is rotatably disposed inside the reaction tank; a plurality of the first stirring blades are respectively fixedly disposed on the first stirring shaft; the first motor is fixedly disposed on one side of the reaction tank, and the output end of the first motor is fixedly connected to the first stirring shaft.

[0008] The temporary storage tank includes a temporary storage tank body, two mounting bases, a rotating shaft, a rotating motor, a mounting frame, and a filter screen; The temporary storage tank is connected to the end of the suction pipe away from the reaction tank and is located on one side of the reaction tank; an opening is provided at the top of the temporary storage tank; two mounting seats are respectively fixedly installed at the top of the temporary storage tank; the rotating shaft is rotatably installed on the two mounting seats; the rotating motor is fixedly installed at the top of the temporary storage tank, and the output end of the rotating motor is fixedly connected to the rotating shaft; one end of the mounting frame is fixedly connected to the rotating shaft, and the other end rests on the top of the temporary storage tank, and the mounting frame is located inside the opening; the filter screen is fixedly installed inside the mounting frame.

[0009] The temporary storage pool also includes a collection box; The collection box is fixedly installed on one side of the temporary storage pool.

[0010] The temporary storage pool also includes a U-shaped frame, two sliding rods, a top block, a bottom block, two second springs, and a vibration motor. The U-shaped frame is fixedly installed on one side of the temporary storage tank; the two sliding rods are respectively slidably installed on the U-shaped frame and pass through the U-shaped frame; the top block is fixedly installed at the top of the two sliding rods; the bottom block is fixedly installed at the bottom of the two sliding rods; the two second springs are respectively sleeved on the two sliding rods and located between the U-shaped frame and the top block; the vibration motor is fixedly installed at the bottom of the bottom block.

[0011] The sedimentation tank includes a sedimentation tank body, multiple screws, baffles, and multiple nuts; A drain outlet is provided at the bottom side of the sedimentation tank; multiple screws are fixedly installed on the side of the sedimentation tank; a baffle is located on the side of the drain outlet and is penetrated by the multiple screws; multiple nuts are respectively installed on the multiple screws.

[0012] The sedimentation tank also includes a double-chain synchronous traction mechanism and two sludge scrapers; The dual-chain synchronous traction mechanism is installed inside the sedimentation tank; the two sludge scrapers are respectively installed on the dual-chain synchronous traction mechanism.

[0013] The sedimentation tank also includes a water pump, hoses, and a float. The water pump is fixedly installed at the top of the sedimentation tank; one end of the hose is connected to the water pump, and the other end of the hose extends into the sedimentation tank; the float is fixedly installed at the end of the hose away from the water pump.

[0014] The negative pressure rural decentralized sewage treatment equipment also includes a second stirring shaft, multiple second stirring blades, and a second motor. The second stirring shaft is rotatably disposed inside the drug storage tank; a plurality of second stirring blades are respectively fixedly disposed on the second stirring shaft; the second motor is fixedly disposed on the top of the drug storage tank, and the output end of the second motor is fixedly connected to the second stirring shaft.

[0015] The filter screen is inclined within the mounting frame to prevent impurities from accumulating.

[0016] The present invention discloses a negative pressure decentralized rural sewage treatment device, in which sewage is first discharged into the temporary storage tank for temporary storage and large particulate impurities are filtered out; liquid flocculant is pre-added to the chemical storage tank; the reaction tank is completely sealed; the first spring applies a downward force to the mounting ring, so that the mounting rod drives the sealing block to always tightly block the discharge hole; During operation, the vacuum pump is activated, reducing the air pressure inside the reaction tank to create a negative pressure. Under atmospheric pressure, the wastewater in the temporary storage tank rapidly enters the reaction tank through the suction pipe. As the wastewater sprays out from the end of the suction pipe, it impacts the impact block, causing it to move downwards. The other end of the lever rises, pushing the mounting rod upwards. The mounting rod drives the mounting ring, compressing the first spring upwards. Simultaneously, the mounting rod also moves the sealing block upwards, no longer blocking the discharge hole. Flocculant enters the reaction tank through the discharge hole and mixes with the wastewater. As long as wastewater continues to enter the reaction tank, flocculant will continue to be added, with the amount of flocculant increasing with the volume of wastewater to be treated. When the wastewater injection stops, the first spring pushes the mounting ring, causing the mounting rod to move downwards, which in turn moves the sealing block downwards to re-block the discharge hole, stopping the addition of flocculant. This allows for automatic and precise addition of an appropriate amount of flocculant based on the wastewater inflow.

[0017] After the water valve is opened, the wastewater that has fully reacted with the flocculant can enter the sedimentation tank through the drain pipe; after the flocs have settled, the upper clear water is discharged. The reason for setting up two sedimentation tanks is that when one of the sedimentation tanks is undergoing wastewater sedimentation, the subsequent wastewater discharged from the reaction tank can be introduced into the other sedimentation tank, thereby avoiding interference from newly entering wastewater to the ongoing sedimentation process. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0019] Figure 1 This is a front view of the present invention.

[0020] Figure 2 This is a schematic diagram of the structure of the present invention.

[0021] Figure 3 yes Figure 2 A magnified view of detail A.

[0022] Figure 4 yes Figure 2 A magnified view of detail B.

[0023] Figure 5 This is a cross-sectional view of the present invention.

[0024] Figure 6 yes Figure 5 A magnified view of detail C.

[0025] Figure 7 yes Figure 5A magnified view of detail D.

[0026] 1-Temporary storage tank, 2-Reaction tank, 3-Suction pipe, 4-Sedimentation tank, 5-Water valve, 6-Drain pipe, 7-Storage tank, 8-Vacuum pump, 9-Mounting rod, 10-Mounting ring, 11-First spring, 12-Sealing block, 13-Mounting shaft, 14-Lever, 15-Impact block, 16-First stirring shaft, 17-First stirring blade, 18-First motor, 19-Second stirring shaft, 20-Second stirring blade, 21-Second motor, 101-Temporary storage tank body, 102-Mounting base, 103-Rotating shaft, 104 - Rotary motor, 105- Mounting frame, 106- Filter screen, 107- Collection box, 108- U-shaped frame, 109- Slide rod, 110- Top block, 111- Bottom block, 112- Second spring, 113- Vibration motor, 10101- Opening, 201- Discharge hole, 401- Sedimentation tank body, 402- Screw, 403- Baffle, 404- Nut, 405- Double chain synchronous traction mechanism, 406- Sludge scraper, 407- Water pump, 408- Hose, 409- Float, 40101- Drain outlet. Detailed Implementation

[0027] Please see Figures 1-7 ,in, Figure 1 This is a front view of the present invention. Figure 2 This is a schematic diagram of the structure of the present invention. Figure 3 yes Figure 2 A magnified view of detail A. Figure 4 yes Figure 2 A magnified view of detail B. Figure 5 This is a cross-sectional view of the present invention. Figure 6 yes Figure 5 A magnified view of detail C. Figure 7 yes Figure 5 A magnified view of detail D.

[0028] This invention provides a negative pressure decentralized rural sewage treatment device: comprising a temporary storage tank 1, a reaction tank 2, a suction pipe 3, two sedimentation tanks 4, two water valves 5, two drain pipes 6, a chemical storage tank 7, a vacuum pump 8, a mounting rod 9, a mounting ring 10, a first spring 11, a sealing block 12, a mounting shaft 13, a lever 14, and an impact block 15; the top wall of the reaction tank 2 is provided with a chemical discharge hole 201; the negative pressure decentralized rural sewage treatment device also includes a first stirring shaft 16, multiple first stirring blades 17, and a first motor 18; the temporary storage tank 1 includes a temporary storage tank body 101, two mounting seats 102, a rotating shaft 103, a rotating motor 104, a mounting frame 105, and a filter screen 106; the top of the temporary storage tank body 101 is provided with an opening 10101; the temporary storage tank 1 also includes a collection... The collection box 107; the temporary storage tank 1 also includes a U-shaped frame 108, two sliding rods 109, a top block 110, a bottom block 111, two second springs 112 and a vibration motor 113; the sedimentation tank 4 includes a sedimentation tank body 401, multiple screws 402, baffles 403 and multiple nuts 404; the bottom side of the sedimentation tank body 401 is provided with a sewage outlet 40101; the sedimentation tank 4 also includes a double-chain synchronous traction mechanism 405 and two sludge scrapers 406; the sedimentation tank 4 also includes a water pump 407, a hose 408 and a float 409; the negative pressure rural decentralized sewage treatment equipment also includes a second stirring shaft 19, multiple second stirring blades 20 and a second motor 21; the aforementioned scheme can automatically link and accurately add an appropriate amount of flocculant according to the sewage inflow.

[0029] Furthermore, the reaction tank 2 is located on one side of the temporary storage tank 1; one end of the suction pipe 3 is connected to the temporary storage tank 1, and the other end is connected to the reaction tank 2; the two sedimentation tanks 4 are located below the temporary storage tank 1 and the reaction tank 2; the two water valves 5 are respectively fixedly installed at the bottom of the reaction tank 2 and are connected to the reaction tank 2; the top ends of the two drain pipes 6 are respectively connected to the two water valves 5, and the bottom ends extend into the bottom of the two sedimentation tanks 4 respectively; The drug storage tank 7 is fixedly installed on the top of the reaction tank 2; the vacuum pump 8 is fixedly installed on the top of the reaction tank 2 and communicates with the reaction tank 2; the top wall of the reaction tank 2 is provided with a drug discharge hole 201, and the drug storage tank 7 and the reaction tank 2 communicate through the drug discharge hole 201; the mounting rod 9 is vertically slidably installed on the top wall of the reaction tank 2, and the mounting rod 9 penetrates the top wall of the reaction tank 2; the mounting ring 10 is fixedly installed on the mounting rod 9; the first spring 11 is sleeved on the mounting rod 9, located above the mounting ring 10, and located inside the reaction tank 2; the sealing block 12 is fixedly installed at one end of the mounting rod 9 and located inside the drug storage tank 7; the mounting shaft 13 is fixedly installed inside the reaction tank 2; the lever 14 is rotatably installed on the mounting shaft 13; one end of the lever 14 is fixedly provided with an impact block 15, and the other end of the lever 14 contacts the bottom end of the mounting rod 9.

[0030] In this embodiment, wastewater is first discharged into the temporary storage tank 1 for temporary storage and large particulate impurities are filtered out; liquid flocculant is pre-added to the drug storage tank 7; the reaction tank 2 is completely sealed; the first spring 11 applies a downward force to the mounting ring 10, so that the mounting rod 9 drives the sealing block 12 to always tightly block the drug discharge hole 201; the impact block 15 is located below the water outlet end of the suction pipe 3; During use, the vacuum pump 8 is activated, causing the air pressure inside the reaction tank 2 to decrease, creating a negative pressure. Under atmospheric pressure, the wastewater in the temporary storage tank 1 quickly enters the reaction tank 2 along the suction pipe 3. When the wastewater sprays out from the end of the suction pipe 3, it impacts the impact block 15, causing the impact block 15 to move downwards. The other end of the lever 14 then rises, pushing the mounting rod 9 upwards. The mounting rod 9 drives the mounting ring 10, compressing the first spring 11 upwards. Simultaneously, the mounting rod 9 also drives the sealing block 12 upwards, no longer blocking. The flocculant enters the reaction tank 2 through the discharge hole 201 and mixes with the sewage. As long as the sewage continues to enter the reaction tank 2, the flocculant will continue to be added to the reaction tank 2, and the amount of flocculant added will increase with the amount of sewage to be treated. When the sewage injection stops, the first spring 11 pushes the mounting ring 10, thereby driving the mounting rod 9 to move down, driving the sealing block 12 to move down and re-block the discharge hole 201, stopping the addition of flocculant. Thus, the appropriate amount of flocculant can be automatically and accurately added according to the sewage inflow.

[0031] After the water valve 5 is opened, the wastewater that has fully reacted with the flocculant can enter the sedimentation tank 4 through the drain pipe 6; after the flocs have settled, the upper layer of clear water is discharged. The reason for setting up two sedimentation tanks 4 is that when one of the sedimentation tanks 4 is undergoing wastewater sedimentation, the subsequent wastewater discharged from the reaction tank 2 can be introduced into the other sedimentation tank 4, thereby avoiding interference from newly entering wastewater to the ongoing sedimentation process.

[0032] Furthermore, the first stirring shaft 16 is rotatably disposed within the reaction tank 2; a plurality of first stirring blades 17 are respectively fixedly disposed on the first stirring shaft 16; the first motor 18 is fixedly disposed on one side of the reaction tank 2, and the output end of the first motor 18 is fixedly connected to the first stirring shaft 16.

[0033] In this embodiment, after the flocculant is added to the reaction tank 2, the first motor 18 drives the first stirring shaft 16 to rotate, thereby driving multiple first stirring blades 17 to rotate, so as to quickly and evenly mix the flocculant and the sewage.

[0034] Furthermore, the temporary storage tank 101 is connected to the end of the suction pipe 3 away from the reaction tank 2 and is located on one side of the reaction tank 2; the top of the temporary storage tank 101 is provided with an opening 10101; two mounting bases 102 are respectively fixedly installed on the top of the temporary storage tank 101; the rotating shaft 103 is rotatably installed on the two mounting bases 102; the rotating motor 104 is fixedly installed on the top of the temporary storage tank 101, and the output end of the rotating motor 104 is fixedly connected to the rotating shaft 103; one end of the mounting frame 105 is fixedly connected to the rotating shaft 103, and the other end rests on the top of the temporary storage tank 101, and the mounting frame 105 is located inside the opening 10101; the filter screen 106 is fixedly installed inside the mounting frame 105.

[0035] In this embodiment, the top of the temporary storage tank 101 is semi-enclosed, with an opening 10101. The mounting frame 105 is V-shaped, and the filter screen 106 is fixedly installed inside for filtering incoming wastewater. One end of the mounting frame 105 is rotatably mounted between the two mounting seats 102 via the rotating shaft 103, and the other end overlaps the edge of one side of the opening 10101. When the impurities intercepted by the filter screen 106 accumulate to a preset amount, the rotating motor 104 is activated, driving the mounting frame 105 to rotate 180 degrees around the rotating shaft 103, causing the mounting frame 105 and the filter screen 106 to flip to an inverted state, thereby dumping out the accumulated impurities.

[0036] Furthermore, the collection box 107 is fixedly disposed on one side of the temporary storage pool 101.

[0037] In this embodiment, the collection box 107 is used to catch impurities poured out from the mounting frame 105.

[0038] Furthermore, the U-shaped frame 108 is fixedly disposed on one side of the temporary storage tank 101; the two sliding rods 109 are respectively slidably disposed on the U-shaped frame 108 and pass through the U-shaped frame 108; the top block 110 is fixedly disposed on the top of the two sliding rods 109; the bottom block 111 is fixedly disposed on the bottom of the two sliding rods 109; the two second springs 112 are respectively sleeved on the two sliding rods 109 and located between the U-shaped frame 108 and the top block 110; the vibration motor 113 is fixedly disposed on the bottom of the bottom block 111.

[0039] In this embodiment, when the mounting frame 105 and the filter screen 106 rotate 180 degrees together to empty the impurities, the end of the mounting frame 105 away from the rotating shaft 103 rests on the top block 110. Then, the vibration motor 113 is started, which, in conjunction with the two slide rods 109 and the two second springs 112, drives the top block 110 to vibrate up and down, causing the mounting frame 105 to also start vibrating, shaking off the impurities adhering to the mounting frame 105 and the filter screen 106.

[0040] Furthermore, a drain outlet 40101 is provided on the bottom side of the sedimentation tank body 401; a plurality of screws 402 are respectively fixedly installed on the side of the sedimentation tank body 401; the baffle 403 is located on the side of the drain outlet 40101 and is penetrated by the plurality of screws 402; a plurality of nuts 404 are respectively installed on the plurality of screws 402.

[0041] In this embodiment, as the sedimentation tank 401 is used continuously, sedimentation impurities will gradually accumulate at its bottom. At this time, by unscrewing the multiple nuts 404 and removing the baffle 403, the deposited impurities can be discharged from the drain outlet 40101.

[0042] Furthermore, the dual-chain synchronous traction mechanism 405 is disposed inside the sedimentation tank body 401; the two sludge scrapers 406 are respectively disposed on the dual-chain synchronous traction mechanism 405.

[0043] In this embodiment, the dual-chain synchronous traction mechanism 405 consists of two sprocket and chain mechanisms, and the two chains move synchronously to drive the scraper 406 to move back and forth. The scraper 406 moves to contact the bottom of the sedimentation tank 401 and scrapes the sediment accumulated at the bottom to the drain outlet 40101 for discharge.

[0044] Furthermore, the water pump 407 is fixedly installed at the top of the sedimentation tank 401; one end of the hose 408 is connected to the water pump 407, and the other end of the hose 408 extends into the sedimentation tank 401; the float ball 409 is fixedly installed at the end of the hose 408 away from the water pump 407.

[0045] In this embodiment, a float 409 is fixedly installed at the inlet end of the hose 408, and the inlet is always suspended a short distance below the surface of the upper clear water zone by buoyancy. When the water pump 407 is started, the upper clear water is drawn out and discharged through the hose 408. The function of "automatic tracking with water level and only drawing clear water without drawing mud" is realized in the simplest and most reliable way.

[0046] Furthermore, the second stirring shaft 19 is rotatably disposed within the medicine storage tank 7; a plurality of second stirring blades 20 are respectively fixedly disposed on the second stirring shaft 19; the second motor 21 is fixedly disposed on the top of the medicine storage tank 7, and the output end of the second motor 21 is fixedly connected to the second stirring shaft 19.

[0047] In this embodiment, the flocculant is stored in the storage tank 7 for a long time, which may lead to uneven concentration due to sedimentation. Therefore, before adding the flocculant to the reaction tank 2, the second motor 21 is started to drive the second stirring shaft 19 to rotate, so that the plurality of second stirring blades 20 rotate to stir the flocculant evenly.

[0048] Furthermore, the filter screen 106 is inclinedly disposed within the mounting frame 105 to prevent impurities from accumulating.

[0049] In this embodiment, the filter screen 106 is inclined so that impurities will not accumulate on the filter screen 106. The impurities will fall into the lower part of the mounting frame 105 due to gravity, thus avoiding clogging of the filter screen 106.

[0050] In this embodiment, a negative pressure decentralized rural sewage treatment device is used. When the vacuum pump 8 is activated, the air pressure inside the reaction tank 2 decreases, creating a negative pressure. Under atmospheric pressure, the sewage in the temporary storage tank 1 rapidly enters the reaction tank 2 along the suction pipe 3. When the sewage sprays out from the end of the suction pipe 3, it impacts the impact block 15, causing the impact block 15 to move downwards. The other end of the lever 14 rises, pushing the mounting rod 9 upwards. The mounting rod 9 drives the mounting ring 10, compressing the first spring 11 upwards. Simultaneously, the mounting rod 9 also drives the... The sealing block 12 moves upward, no longer blocking the discharge hole 201, and the flocculant enters the reaction tank 2 from the discharge hole 201 to mix with the sewage. As long as the sewage continues to enter the reaction tank 2, the flocculant will continue to be added to the reaction tank 2, and the amount of flocculant added increases with the amount of sewage to be treated. When the sewage injection stops, the first spring 11 pushes the mounting ring 10, thereby driving the mounting rod 9 to move downward, driving the sealing block 12 to move downward again to block the discharge hole 201, stopping the addition of flocculant. Thus, the appropriate amount of flocculant can be automatically and accurately added according to the sewage inflow.

[0051] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A negative pressure decentralized rural sewage treatment device, characterized in that, It includes a temporary storage tank, a reaction tank, a suction pipe, two sedimentation tanks, two water valves, two drain pipes, a drug storage tank, a vacuum pump, a mounting rod, a mounting ring, a first spring, a sealing block, a mounting shaft, a lever, and an impact block; The reaction tank is located on one side of the temporary storage tank; one end of the suction pipe is connected to the temporary storage tank and the other end is connected to the reaction tank; the two sedimentation tanks are located below the temporary storage tank and the reaction tank; the two water valves are respectively fixedly installed at the bottom of the reaction tank and connected to the reaction tank; the top ends of the two drain pipes are respectively connected to the two water valves, and the bottom ends extend into the bottom of the two sedimentation tanks. The drug storage tank is fixedly installed at the top of the reaction tank; the vacuum pump is fixedly installed at the top of the reaction tank and communicates with the reaction tank; a drug discharge hole is provided on the top wall of the reaction tank, and the drug storage tank and the reaction tank communicate through the drug discharge hole; the mounting rod is vertically slidably installed on the top wall of the reaction tank, and the mounting rod passes through the top wall of the reaction tank; the mounting ring is fixedly installed on the mounting rod; the first spring is sleeved on the mounting rod, located above the mounting ring, and located inside the reaction tank; the sealing block is fixedly installed at one end of the mounting rod and located inside the drug storage tank; the mounting shaft is fixedly installed inside the reaction tank; the lever is rotatably installed on the mounting shaft; an impact block is fixedly installed at one end of the lever, and the other end of the lever contacts the bottom end of the mounting rod.

2. The negative pressure decentralized rural sewage treatment equipment as described in claim 1, characterized in that, The negative pressure rural decentralized sewage treatment equipment also includes a first stirring shaft, multiple first stirring blades, and a first motor; The first stirring shaft is rotatably disposed inside the reaction tank; a plurality of the first stirring blades are respectively fixedly disposed on the first stirring shaft; the first motor is fixedly disposed on one side of the reaction tank, and the output end of the first motor is fixedly connected to the first stirring shaft.

3. The negative pressure rural decentralized sewage treatment equipment as described in claim 2, characterized in that, The temporary storage tank includes a temporary storage tank body, two mounting bases, a rotating shaft, a rotating motor, a mounting frame, and a filter screen; The temporary storage tank is connected to the end of the suction pipe away from the reaction tank and is located on one side of the reaction tank; an opening is provided at the top of the temporary storage tank; two mounting seats are respectively fixedly installed at the top of the temporary storage tank; the rotating shaft is rotatably installed on the two mounting seats; the rotating motor is fixedly installed at the top of the temporary storage tank, and the output end of the rotating motor is fixedly connected to the rotating shaft; one end of the mounting frame is fixedly connected to the rotating shaft, and the other end rests on the top of the temporary storage tank, and the mounting frame is located inside the opening; the filter screen is fixedly installed inside the mounting frame.

4. The negative pressure decentralized rural sewage treatment equipment as described in claim 3, characterized in that, The temporary storage pool also includes a collection box; The collection box is fixedly installed on one side of the temporary storage pool.

5. The negative pressure decentralized rural sewage treatment equipment as described in claim 4, characterized in that, The temporary storage pool also includes a U-shaped frame, two sliding rods, a top block, a bottom block, two second springs, and a vibration motor; The U-shaped frame is fixedly installed on one side of the temporary storage tank; the two sliding rods are respectively slidably installed on the U-shaped frame and pass through the U-shaped frame; the top block is fixedly installed at the top of the two sliding rods; the bottom block is fixedly installed at the bottom of the two sliding rods; the two second springs are respectively sleeved on the two sliding rods and located between the U-shaped frame and the top block; the vibration motor is fixedly installed at the bottom of the bottom block.

6. The negative pressure rural decentralized sewage treatment equipment as described in claim 5, characterized in that, The sedimentation tank includes a sedimentation tank body, multiple screws, baffles, and multiple nuts; A drain outlet is provided at the bottom side of the sedimentation tank; multiple screws are fixedly installed on the side of the sedimentation tank; a baffle is located on the side of the drain outlet and is penetrated by the multiple screws; multiple nuts are respectively installed on the multiple screws.

7. The negative pressure decentralized rural sewage treatment equipment as described in claim 6, characterized in that, The sedimentation tank also includes a double-chain synchronous traction mechanism and two sludge scrapers; The dual-chain synchronous traction mechanism is installed inside the sedimentation tank; the two sludge scrapers are respectively installed on the dual-chain synchronous traction mechanism.

8. The negative pressure rural decentralized sewage treatment equipment as described in claim 7, characterized in that, The sedimentation tank also includes a water pump, hoses, and a float. The water pump is fixedly installed at the top of the sedimentation tank; one end of the hose is connected to the water pump, and the other end of the hose extends into the sedimentation tank; the float is fixedly installed at the end of the hose away from the water pump.

9. The negative pressure decentralized rural sewage treatment equipment as described in claim 8, characterized in that, The negative pressure rural decentralized sewage treatment equipment also includes a second stirring shaft, multiple second stirring blades, and a second motor. The second stirring shaft is rotatably disposed inside the drug storage tank; a plurality of second stirring blades are respectively fixedly disposed on the second stirring shaft; the second motor is fixedly disposed on the top of the drug storage tank, and the output end of the second motor is fixedly connected to the second stirring shaft.

10. The negative pressure decentralized rural sewage treatment equipment as described in claim 9, characterized in that, The filter screen is tilted within the mounting frame to prevent impurities from accumulating.

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