CN118512814A - A rural domestic sewage purification and filtering device - Google Patents

Abstract

The present invention relates to the technical field of sewage treatment, and in particular to a rural domestic sewage purification and filtering device, comprising a water outlet pipe, a filter screen is fixedly connected to the water inlet end of the water outlet pipe, an inner lining pipe is fixedly connected to the water outlet pipe, a plurality of grooves are opened on the inner lining pipe, a nozzle is movably matched in the groove, a water storage tank is fixedly connected to the bottom of the water outlet pipe, a main water pipe is fixedly connected to the water storage tank, a first branch pipe is provided on the main water pipe and connected to the input end of the nozzle, a second branch pipe is provided on the main water pipe, an air bag is provided at the end of the second branch pipe, and the air bag rests on the nozzle. After the sewage is discharged, the domestic sewage purification and filtering device provided by the present invention flushes the filter screen through the nozzle to prevent the filter holes of the filter screen from being blocked, and collects impurities washed off the filter screen through the upper cover and the collection box to prevent the impurities from accumulating in the water inlet pipe and causing the impurities to cause secondary blockage of the filter screen in the subsequent sewage discharge process.

Description

A rural domestic sewage purification and filtering device

Technical Field

The invention relates to the technical field of sewage treatment, and in particular to a rural domestic sewage purification and filtering device.

Background Art

Since rural households are relatively scattered and usually lack scientific and reasonable drainage planning, and the short-term changes in population due to people working away from home can also lead to a mismatch between the design scale and the actual sewage volume, decentralized treatment is the most practical treatment mode at this stage.

The so-called decentralized treatment model is to treat domestic sewage with each household as a sewage treatment unit. For the domestic sewage of a single household or several households, it is advisable to adopt sewage treatment facilities that are easy to install and reliable in operation. The existing sewage treatment facilities usually include a process of filtering large particles of impurities with a filter. After long-term use, the filter is easily clogged by impurities and needs to be manually dismantled and cleaned. However, there are many left-behind elderly people in rural areas. It is difficult for these elderly people to dismantle and clean by themselves. If the municipal pipeline network hires workers to clean up, scattered population settlements will also incur greater transportation costs.

Summary of the invention

The purpose of the present invention is to solve the problem of blockage of rural domestic sewage treatment facilities in the prior art, and to propose a rural domestic sewage purification and filtering device.

In order to achieve the above object, the present invention adopts the following technical solutions:

A rural domestic sewage purification and filtering device is designed, comprising an outlet pipe, a filter screen is fixedly connected to the water inlet end of the outlet pipe, an inner lining pipe is fixedly connected inside the outlet pipe, a plurality of grooves are opened on the inner lining pipe, a nozzle is movably fitted in the groove, a water storage tank is fixedly connected to the bottom of the outlet pipe, a main water pipe is fixedly connected to the water storage tank, a first branch pipe is provided on the main water pipe and connected to the input end of the nozzle, a second branch pipe is provided on the main water pipe, an air bag is provided at the end of the second branch pipe, and the air bag rests on the nozzle.

Preferably, a reciprocating screw is rotatably installed in the water tank, and a circular baffle is threadedly matched on the reciprocating screw. A guide rod is fixed in the water tank, and the baffle and the guide rod are slidably matched to guide the baffle. A circular piston is slidably matched in the water tank.

Preferably, the inner diameter of the annular piston is smaller than the outer diameter of the baffle, and the density of the piston is smaller than the density of water.

Preferably, a one-way bearing is provided at the bottom of the inner liner pipe, an axial flow fan is installed on the one-way bearing, a rotating shaft is rotatably installed at the bottom of the water outlet pipe, the top end of the rotating shaft is coaxially fixed to the axial flow fan, a driving gear is fixed at the bottom of the rotating shaft, a first end face gear matching with the driving gear is rotatably installed on the water outlet pipe, a rotating tube is rotatably installed on the water outlet pipe, the rotating tube is sleeved on the first end face gear, a spring is provided between the rotating tube and the first end face gear, a second end face gear is fixed on the rotating tube, a driven gear is fixed on the reciprocating screw, and the driven gear matches the second end face gear.

Preferably, a limiting structure is provided on the inner liner tube to control whether the rotating tube rotates or not, the control structure includes a limiting block, a limiting hole is provided on the rotating tube, the limiting block can be slidably engaged in the limiting hole, a mounting groove is provided at the bottom of the inner liner tube, a sealing plate can be slidably engaged in the mounting groove, one end of the limiting block is fixedly connected to the sealing plate, and a return spring is provided in the mounting groove to elastically support the sealing plate.

Preferably, an inlet pipe is fixedly connected to the water inlet end of the water outlet pipe, a collecting box is fixedly connected to the bottom of the water inlet pipe, a sealing cover is detachably connected to the bottom of the collecting box, an upper cover is hinged on the top of the collecting box, and a supporting spring is provided inside the water inlet pipe to elastically support the upper cover.

The rural domestic sewage purification and filtering device proposed by the present invention has the beneficial effect that: after the sewage is discharged, the filter screen is flushed through the nozzle to prevent the filter holes of the filter screen from being blocked, and the impurities flushed down on the filter screen are collected through the cooperation of the upper cover and the collection box to prevent the impurities from accumulating in the water inlet pipe, resulting in secondary blockage of the filter screen caused by these impurities in the subsequent sewage discharge process.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a rural domestic sewage purification and filtering device proposed by the present invention;

FIG2 is a schematic structural diagram of a water outlet pipe of a rural domestic sewage purification and filtering device proposed by the present invention;

FIG3 is a front view of FIG1 of a rural domestic sewage purification and filtering device proposed by the present invention;

FIG4 is a cross-sectional view of the rural domestic sewage purification and filtering device proposed by the present invention, taken along the line A-A in FIG3 ;

FIG5 is a bottom view of FIG3 of a rural domestic sewage purification and filtering device proposed by the present invention;

FIG6 is a right view of FIG3 of a rural domestic sewage purification and filtering device proposed by the present invention;

FIG7 is a cross-sectional view of the rural domestic sewage purification and filtering device proposed by the present invention, taken along the line B-B in FIG6 ;

FIG8 is an enlarged view of point C in FIG7 of a rural domestic sewage purification and filtration device proposed by the present invention;

FIG9 is an enlarged view of point D in FIG7 of a rural domestic sewage purification and filtering device proposed by the present invention;

FIG10 is an enlarged view of point E in FIG7 of a rural domestic sewage purification and filtration device proposed by the present invention;

FIG. 11 is a diagram showing the matching of a driven gear and a first end face gear of a rural domestic sewage purification and filtering device proposed by the present invention.

In the figure: 1. water inlet pipe; 101. collecting box; 102. sealing cover; 103. upper cover; 104. supporting spring; 2. water outlet pipe; 201. lining pipe; 202. axial flow fan; 203. one-way bearing; 204. driving gear; 205. spring; 206. second end face gear; 207. rotating shaft; 208. rotating tube; 209. first end face gear; 210. mounting groove; 211. limiting hole; 212. limiting block; 213. sealing plate; 214. reset spring; 215. water storage tank; 216. driven gear; 217. baffle; 218. reciprocating screw; 219. guide rod; 220. piston; 221. main water pipe; 222. first branch pipe; 223. nozzle; 224. second branch pipe; 225. air bag; 226. groove; 3. filter screen.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

Example 1

Referring to Figures 1-8, a rural domestic sewage purification and filtering device includes an outlet pipe 2, a filter screen 3 is fixedly connected to the water inlet end of the outlet pipe 2, an inner liner pipe 201 is fixedly connected to the outlet pipe 2, a plurality of grooves 226 are provided on the inner liner pipe 201, a nozzle 223 is movably matched in the groove 226, a water storage tank 215 is fixedly connected to the bottom of the outlet pipe 2, a main water pipe 221 is fixedly connected to the water storage tank 215, a first branch pipe 222 is provided on the main water pipe 221 and connected to the input end of the nozzle 223, the first branch pipe 222 is a rubber hose, which has the characteristic of reversible deformation. A second branch pipe 224 is provided on the main water pipe 221, an air bag 225 is provided at the end of the second branch pipe 224, and the air bag 225 is against the nozzle 223.

Sewage enters the pipe from the water inlet end of the outlet pipe 2. During this process, the filter screen 3 filters the sewage to achieve the purpose of purifying the sewage.

After the sewage is filtered, water is supplied to the main water pipe 221, and part of the water in the main water pipe 221 is sent into the nozzle 223 through the first branch pipe 222. The water is sprayed out from the nozzle 223, and the sprayed water flows toward the filter 3 to backwash the filter 3, thereby washing away the impurities attached to the filter 3 to prevent the filter holes of the filter 3 from being blocked.

When the nozzle 223 is flushing the filter 3, part of the water in the main water pipe 221 enters the air bag 225 through the second branch pipe 224. After the water enters the air bag 225, the air bag 225 will expand. The expansion of the air bag 225 will squeeze the nozzle 223, thereby changing the angle of the water flow sprayed by the nozzle 223, so that the nozzle 223 can flush the filter 3 in multiple directions.

When the main water pipe 221 stops supplying water, the water in the airbag 225 will be discharged, and the airbag 225 will also return to its original state, and the nozzle 223 will be reset under the action of the first branch pipe 222 made of rubber material.

Example 2

As shown in Figures 7 and 10, a reciprocating screw 218 is rotatably installed in the water tank 215, and a circular baffle 217 is threadedly engaged on the reciprocating screw 218. A guide rod 219 is fixedly connected to the water tank 215. The baffle 217 and the guide rod 219 are slidably engaged to guide the baffle 217. An annular piston 220 is slidably engaged in the water tank 215. The inner diameter of the annular piston 220 is smaller than the outer diameter of the baffle 217, and the density of the piston 220 is smaller than the density of water.

The water storage tank 215 is located at the bottom of the water outlet pipe 2. The water filtered by the filter screen 3 and entering the water outlet pipe 2 will enter the water storage tank 215 under the action of gravity. The piston 220 in the water storage tank 215 moves upward under the action of buoyancy until the piston 220 abuts against the baffle 217. At this time, the piston 220 and the baffle 217 cooperate to close the water storage tank 215.

The water tank 215 is used to supply water to the main water pipe 221. When supplying water to the main water pipe 221, the reciprocating screw 218 is driven to rotate. Since the baffle 217 is threadedly matched with the reciprocating screw 218 and the baffle 217 cannot rotate under the action of the guide rod 219, the reciprocating screw 218 will drive the baffle 217 to move up and down in the water tank 215.

After the water tank 215 is filled with water, the reciprocating screw 218 drives the baffle 217 to move downward. Since the outer diameter of the baffle 217 is larger than the inner diameter of the piston 220, the baffle 217 will drive the piston 220 to move downward. At this time, the baffle 217 and the piston 220 will exert pressure on the water in the water tank 215, causing the water in the tank to supply water to the main water pipe 221.

When the baffle 217 moves down to the lowest point, the water storage tank 215 completes the work on the main water pipe 221, and at this time, as the reciprocating screw 218 continues to rotate, the reciprocating screw 218 will drive the baffle 217 to move up to reset.

Example 3

As shown in Figures 7 and 9, a one-way bearing 203 is provided at the bottom of the inner liner 201, and an axial flow fan 202 is installed on the one-way bearing 203. A rotating shaft 207 is rotatably installed at the bottom of the water outlet pipe 2. The top end of the rotating shaft 207 is coaxially fixed to the axial flow fan 202, and a driving gear 204 is fixed to the bottom end of the rotating shaft 207. A first end face gear 209 that cooperates with the driving gear 204 is rotatably installed on the water outlet pipe 2. A rotating tube 208 is rotatably installed on the water outlet pipe 2, and the rotating tube 208 is sleeved on the first end face gear 209. A spring 205 is provided between the rotating tube 208 and the first end face gear 209. A second end face gear 206 is fixed to the rotating tube 208, and a driven gear 216 is fixed to the reciprocating screw 218, and the driven gear 216 cooperates with the second end face gear 206.

When water flows in the water outlet pipe 2, the water flow drives the axial flow fan 202 to rotate, as shown in Figure 11. The rotation of the axial flow fan 202 drives the rotating shaft 207 to rotate. The rotation of the rotating shaft 207 drives the driving gear 204 to rotate. The driving gear 204 drives the first end face gear 209 to rotate. The rotation of the first end face gear 209 charges the clockwork 205.

Since the axial flow fan 202 is connected to the inner liner tube 201 via the one-way bearing 203 , the axial flow fan 202 cannot rotate in the reverse direction, and the elastic potential energy stored in the spring 205 is only used to drive the rotating tube 208 to rotate.

When the rotating tube 208 rotates, it drives the second end face gear 206 to rotate, and the second end face gear 206 drives the driven gear 216 to rotate. Since the driven gear 216 is fixed to the reciprocating screw 218, the rotation of the driven gear 216 drives the reciprocating screw 218 to rotate.

As shown in Figures 4 and 9, a limiting structure is provided on the inner liner tube 201 to control whether the rotating tube 208 rotates or not. The control structure includes a limiting block 212. A limiting hole 211 is provided on the rotating tube 208. The limiting block 212 can be slidably engaged in the limiting hole 211. A mounting groove 210 is provided at the bottom of the inner liner tube 201. A sealing plate 213 can be slidably engaged in the mounting groove 210. One end of the limiting block 212 is fixedly connected to the sealing plate 213. A return spring 214 is provided in the mounting groove 210 to elastically support the sealing plate 213.

When water flows in the water outlet pipe 2, the water flow in the pipe will exert pressure on the sealing plate 213, causing the sealing plate 213 to move downward in the installation groove 210. The downward movement of the sealing plate 213 drives the limit block 212 to move downward, so that the limit block 212 is inserted into the limit hole 211 to limit the rotating tube 208. At this time, the rotating tube 208 cannot rotate.

When the water in the water outlet pipe 2 is drained, the sealing plate 213 moves up to reset under the elastic force of the reset spring 214, and the sealing plate 213 moves up to drive the limit block 212 to move up. After the limit block 212 moves up, it is pulled out from the limit hole 211. At this time, the rotating tube 208 can rotate freely.

Example 4

As shown in Figure 7, the water inlet end of the water outlet pipe 2 is fixedly connected to the water inlet pipe 1, the bottom of the water inlet pipe 1 is fixedly connected to a collecting box 101, the bottom of the collecting box 101 is detachably connected to a sealing cover 102, the top of the collecting box 101 is hinged with an upper cover 103, and a supporting spring 104 is provided inside the water inlet pipe 1 to elastically support the upper cover 103.

When domestic sewage is discharged, it flows from the water inlet pipe 1 to the water outlet pipe 2 , and the impurities filtered out by the filter screen 3 will be located on the side close to the water inlet pipe 1 .

When the filter screen 3 is flushed by the nozzle 223, the flushed impurities are blocked by the upper cover 103 and fall into the collection box 101, thereby completing the collection of the impurities to prevent the flushed impurities from causing secondary blockage to the filter screen 3 in subsequent sewage discharge work.

When a lot of impurities are accumulated in the collection box 101 , the sealing cover 102 can be opened to clean the collection box 101 .

Working principle and workflow:

When discharging domestic sewage:

The sewage first enters the water inlet pipe 1, is filtered by the filter screen 3, and then enters the water outlet pipe 2 for discharge;

After the sewage enters the outlet pipe 2, the following actions are performed:

a. Part of the sewage enters the water storage tank 215 under the action of gravity, and the piston 220 in the water storage tank 215 moves upward under the action of buoyancy until the piston 220 abuts against the baffle 217. At this time, the water storage tank 215 is full of water, and the piston 220 and the baffle 217 cooperate to close the water storage tank 215;

b. The water flow in the water outlet pipe 2 exerts pressure on the sealing plate 213, causing the sealing plate 213 to move downward in the installation groove 210. The downward movement of the sealing plate 213 drives the limit block 212 to move downward, so that the limit block 212 is inserted into the limit hole 211 to limit the rotation tube 208. At this time, the rotation tube 208 cannot rotate;

c. The water flow in the water outlet pipe 2 drives the axial flow fan 202 to rotate. As shown in FIG. 11 , the rotation of the axial flow fan 202 drives the rotating shaft 207 to rotate. The rotation of the rotating shaft 207 drives the driving gear 204 to rotate. The driving gear 204 drives the first end face gear 209 to rotate. The rotation of the first end face gear 209 charges the clockwork 205.

After the sewage in the outlet pipe 2 is drained, the following actions are performed:

(1) The sealing plate 213 is no longer subjected to the pressure of the water body. Under the elastic force of the reset spring 214, the sealing plate 213 moves up to reset. The upward movement of the sealing plate 213 drives the limit block 212 to move up. After the limit block 212 moves up, it is pulled out of the limit hole 211. At this time, the rotating tube 208 can rotate freely.

(2) Since the rotating tube 208 is rotatable at this time, the charged mainspring 205 drives the rotating tube 208 to rotate. When the rotating tube 208 rotates, it drives the second end face gear 206 to rotate. The second end face gear 206 drives the driven gear 216 to rotate. Since the driven gear 216 is fixed to the reciprocating screw 218, the rotation of the driven gear 216 drives the reciprocating screw 218 to rotate.

(3) The reciprocating screw 218 drives the baffle 217 to move downward. Since the outer diameter of the baffle 217 is larger than the inner diameter of the piston 220, the baffle 217 drives the piston 220 to move downward. At this time, the baffle 217 and the piston 220 exert pressure on the water in the water storage tank 215, causing the water in the tank to supply water to the main water pipe 221.

(4) When the water storage tank 215 supplies water to the main water pipe 221, part of the water in the main water pipe 221 is sent into the nozzle 223 through the first branch pipe 222, and the water is sprayed out from the nozzle 223. The sprayed water flows toward the filter 3 to backwash the filter 3, thereby washing away the impurities attached to the filter 3 to prevent the filter holes of the filter 3 from being blocked.

When the nozzle 223 is flushing the filter 3, part of the water in the main water pipe 221 enters the air bag 225 through the second branch pipe 224. After the water enters the air bag 225, the air bag 225 will expand. The expansion of the air bag 225 will squeeze the nozzle 223, thereby changing the angle of the water flow sprayed by the nozzle 223, so that the nozzle 223 can flush the filter 3 in multiple directions.

(5) When the filter 3 is flushed by the nozzle 223, the impurities flushed down are blocked by the upper cover 103 and fall into the collection box 101, thereby completing the collection of the impurities to prevent the flushed impurities from causing secondary blockage to the filter 3 in the subsequent sewage discharge work. When a large amount of impurities accumulate in the collection box 101, the sealing cover 102 can be opened to clean the collection box 101.

(6) When the baffle 217 moves down to the lowest point, the water storage tank 215 stops supplying water to the main water pipe 221. At this time, as the reciprocating screw 218 continues to rotate, the reciprocating screw 218 drives the baffle 217 to move up to reset;

(7) When the main water pipe 221 stops supplying water, the water in the air bag 225 will be discharged, and the air bag 225 will also return to its original state, and the nozzle 223 will be reset under the action of the first branch pipe 222 made of rubber material.

After the domestic sewage purification and filtering device provided by the present invention completes sewage discharge, the filter screen 3 is flushed through the nozzle 223 to prevent the filter holes of the filter screen 3 from being blocked, and the impurities flushed from the filter screen 3 are collected through the upper cover 103 in cooperation with the collecting box 101 to prevent the impurities from accumulating in the water inlet pipe 1, resulting in secondary blockage of the filter screen 3 caused by these impurities during the subsequent sewage discharge process.

The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims (6)

1. Rural domestic sewage purification filter equipment, a serial communication port, including outlet pipe (2), the inlet end rigid coupling of outlet pipe (2) has filter screen (3), the rigid coupling has interior bushing pipe (201) in outlet pipe (2), a plurality of recesses (226) have been seted up on inside bushing pipe (201), but movable fit has shower nozzle (223) in recess (226), outlet pipe (2) bottom rigid coupling has water storage tank (215), the rigid coupling has main water pipe (221) on water storage tank (215), be equipped with first branch pipe (222) on main water pipe (221) and be connected to the input of shower nozzle (223), be equipped with second branch pipe (224) on main water pipe (221), second branch pipe (224) tip is equipped with gasbag (225), gasbag (225) support and lean on shower nozzle (223).

2. The rural domestic sewage purification and filtration device according to claim 1, wherein a reciprocating screw (218) is rotatably installed in the water storage tank (215), a circular baffle plate (217) is in threaded fit with the reciprocating screw (218), a guide rod (219) is fixedly connected in the water storage tank (215), the baffle plate (217) and the guide rod (219) are in sliding fit with each other to guide the baffle plate (217), and an annular piston (220) is slidably matched in the water storage tank (215).

3. The rural domestic sewage purification and filtration apparatus according to claim 2, wherein the inner diameter of the circular ring-shaped piston (220) is smaller than the outer diameter of the baffle plate (217), and the density of the piston (220) is smaller than the density of water.

4. A rural domestic sewage purification and filtration device according to claim 3, wherein the bottom of the lining pipe (201) is provided with a one-way bearing (203), an axial flow fan (202) is installed on the one-way bearing (203), a rotating shaft (207) is rotatably installed at the bottom of the water outlet pipe (2), the top end of the rotating shaft (207) is coaxially fixedly connected to the axial flow fan (202), a driving gear (204) is fixedly connected to the bottom end of the rotating shaft (207), a first end face gear (209) matched with the driving gear (204) is rotatably installed on the water outlet pipe (2), a rotating pipe (208) is rotatably installed on the water outlet pipe (2), a spring (205) is sleeved on the first end face gear (209), a second end face gear (206) is fixedly connected to the rotating pipe (208), a driven gear (216) is fixedly connected to the reciprocating screw (218), and the driven gear (216) is matched with the second end face gear (206).

5. The rural domestic sewage purification and filtration device according to claim 4, wherein the lining pipe (201) is provided with a limiting structure to control whether the rotary pipe (208) rotates or not, the control structure comprises a limiting block (212), a limiting hole (211) is formed in the rotary pipe (208), the limiting block (212) is slidably matched in the limiting hole (211), the bottom of the lining pipe (201) is provided with a mounting groove (210), the mounting groove (210) is slidably matched with a sealing plate (213), one end of the limiting block (212) is fixedly connected to the sealing plate (213), and a reset spring (214) is arranged in the mounting groove (210) to elastically support the sealing plate (213).

6. Rural domestic sewage purification and filtration device according to any one of claims 1-5, wherein the water inlet end of the water outlet pipe (2) is fixedly connected with a water inlet pipe (1), the bottom of the water inlet pipe (1) is fixedly connected with a collecting box (101), the bottom of the collecting box (101) is detachably connected with a sealing cover (102), the top of the collecting box (101) is hinged with an upper cover (103), and a supporting spring (104) is arranged inside the water inlet pipe (1) to elastically support the upper cover (103).