Filtering device for rural sewage treatment tank

Abstract

The utility model discloses a filtering device for a rural sewage treatment tank, which comprises a tank body, a sealing cover is fixed at the top of the tank body through a first fixing mechanism, a filter screen is fixed at the bottom of the sealing cover through a second fixing mechanism, a cleaning mechanism is arranged in the middle of the sealing cover, and the cleaning mechanism comprises a first pipeline. A first pipeline is rotatably mounted on the inner side of the middle of the sealing cover through a sealing bearing, and a water spraying head is fixed to the position, located in the tank body, of the lower end of the first pipeline, According to the filtering device for the rural sewage treatment tank, by starting the motor, the water spraying head can continuously rotate around the central axis of the filtering net; due to the design that the inner side of the filter screen is parallel to the water spraying head, water sprayed out of the water spraying head can wash off impurities at the bottom of the filter screen, so that the impurities on the filter screen can be conveniently cleaned, the filter screen does not need to be detached from the interior of the tank body to be cleaned, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rural sewage treatment, in particular to a filtering device for a rural sewage treatment tank. Background Technique

[0002] Before rural sewage is treated, it is necessary to first filter out solid impurities in the sewage with a treatment tank to prevent the fixed impurities in the sewage from clogging the subsequent sewage treatment design.

[0003] However, for the existing filtering device of rural sewage treatment tank, it is necessary to disassemble the filter screen from the inside of the treatment tank for cleaning, resulting in slow cleaning efficiency and reduced work efficiency. And after the filter screen is damaged, it is not convenient to disassemble and replace it from the inside of the treatment tank, which also reduces the work efficiency.

[0004] In view of the above problems, there is an urgent need to innovate on the basis of the original filtering device for rural sewage treatment tank. Content of the Utility Model

[0005] The purpose of the utility model is to provide a filtering device for a rural sewage treatment tank to solve the problems of the filtering device of the rural sewage treatment tank mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: A filtering device for a rural sewage treatment tank, including a tank body, the top of the tank body is fixed with a sealing cover through a first fixing mechanism, the bottom of the sealing cover is fixed with a filter screen through a second fixing mechanism, and a cleaning mechanism is arranged in the middle of the sealing cover;

[0007] The cleaning mechanism includes a first pipe, the inner side of the middle of the sealing cover is rotatably installed with the first pipe through a sealing bearing, the lower end of the first pipe is fixed with a water spray head inside the tank body, the upper end of the first pipe is rotatably installed with a second pipe through a sealing bearing, the outer wall of the second pipe is fixed to the top of the sealing cover through a support plate, a motor is fixed to the top of the sealing cover, the output end of the top of the motor is fixed with a first gear, a second gear is engaged on one side of the first gear, and the inner wall of the second gear is fixedly connected with the outer wall of the first pipe.

[0008] Preferably, the first fixing mechanism includes an L-shaped plate and a limiting rod, the top of the outer side of the tank body is fixed with an L-shaped plate, a fixing rod is fixed between the L-shaped plates, a through groove is opened in the middle of the limiting rod, the end of the fixing rod penetrates through the inside of the through groove, one end of a spring is fixed to the inner wall of the through groove close to the sealing cover, the other end of the spring is fixedly connected with the outer wall of the fixing rod, one end of the limiting rod is located inside a limiting groove, the limiting groove is opened on the side of the sealing cover, and a pull ring is fixed to the other end of the limiting rod.

[0009] Preferably, the second fixing mechanism includes a pull rod. The pull rod is fixed to the bottom of the sealing cover. The lower end of the pull rod is engaged inside the docking seat. The bottom of the docking seat is fixedly connected to the inner wall of the filter net. The lower end of the pull rod is fixedly connected to the docking seat by bolts.

[0010] Preferably, a water inlet pipe is provided on one side of the tank body, and the water inlet pipe is located below the top of the filter net. An outlet pipe is provided above the filter net on the other side of the tank body.

[0011] Preferably, a sewage discharge pipe is provided at the bottom of the tank body, and a manual valve is installed on the sewage discharge pipe.

[0012] Preferably, handles are fixed to both sides of the top of the sealing cover, and the handles are designed in a semi-circular structure.

[0013] Preferably, the filter net is designed in a hollow conical structure, the inner side of the filter net is parallel to the spray head, the side of the filter net is in close contact with the inner wall of the tank body, and the central axis of the filter net coincides with the central axis of the first pipe.

[0014] Preferably, the outer side of the fixing rod is in close contact with the inner side of the through groove, and the fixing rod and the through groove form a sliding structure. The end of the limiting rod is in snap connection with the limiting groove.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: For the filtering device of the rural sewage treatment tank, by starting the motor, the spray head can continuously rotate around the central axis of the filter net. Since the inner side of the filter net is parallel to the spray head, the water sprayed from the spray head can wash down the impurities at the bottom of the filter net, thereby facilitating the cleaning of the impurities on the filter net. There is no need to disassemble the filter net from the inside of the tank body for cleaning, which improves the work efficiency.

[0016] Pull the pull ring. The pull ring drives the limiting rod and the through groove to move away from the sealing cover, compressing the spring. At the same time, the end of the limiting rod is separated from the limiting groove. Then, rotate the pull ring and the limiting rod through the fixing rod to make the limiting rod in a vertical state, facilitating the disassembly between the sealing cover and the tank body, and thus facilitating the removal of the filter net from the inside of the tank body for replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a front sectional structure schematic diagram of the present utility model;

[0018] Figure 2 is of the present utility model Figure 1 the enlarged structure schematic diagram at A in;

[0019] Figure 3 is of the present utility model Figure 1Schematic diagram of the enlarged structure at position B in the [device];

[0020] Figure 4 This utility model Figure 1 Schematic diagram of the enlarged structure at position C in the [device];

[0021] Figure 5 Top view structure diagram of the filter net of this utility model;

[0022] Figure 6 This utility model Figure 5 Schematic diagram of the enlarged structure at position D in the [device];

[0023] Figure 7 Top view sectional structure diagram of the limiting rod of this utility model.

[0024] In the figure: 1, tank body; 2, sealing cover; 3, filter net; 4, first pipeline; 5, water spray head; 6, second pipeline; 7, support plate; 8, motor; 9, first gear; 10, second gear; 11, L-shaped plate; 12, fixing rod; 13, limiting rod; 14, through groove; 15, spring; 16, limiting groove; 17, pull ring; 18, pull rod; 19, docking seat; 20, bolt; 21, water inlet pipe; 22, water outlet pipe; 23, sewage pipe; 24, manual valve; 25, handle. Specific implementation manner

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-7 , this utility model provides a technical solution: a filtering device for a rural sewage treatment tank, including a tank body 1, a sealing cover 2 is fixed on the top of the tank body 1 through a first fixing mechanism, a filter net 3 is fixed on the bottom of the sealing cover 2 through a second fixing mechanism, and a cleaning mechanism is arranged in the middle of the sealing cover 2;

[0027] The cleaning mechanism includes a first pipeline 4, the inner side of the middle of the sealing cover 2 is rotatably installed with a first pipeline 4 through a sealing bearing, the lower end of the first pipeline 4 is located inside the tank body 1 and fixed with a water spray head 5, the upper end of the first pipeline 4 is rotatably installed with a second pipeline 6 through a sealing bearing, the outer wall of the second pipeline 6 is fixed on the top of the sealing cover 2 through a support plate 7, a motor 8 is fixed on the top of the sealing cover 2, the output end of the top of the motor 8 is fixed with a first gear 9, and one side of the first gear 9 is engaged with a second gear 10, and the inner wall of the second gear 10 is fixedly connected with the outer wall of the first pipeline 4.

[0028] The first fixing mechanism includes an L-shaped plate 11 and a limiting rod 13. The L-shaped plate 11 is fixed to the top of the outer side of the tank body 1. A fixing rod 12 is fixed between the L-shaped plates 11. A through groove 14 is formed in the middle of the limiting rod 13. The end of the fixing rod 12 penetrates through the inside of the through groove 14. One end of a spring 15 is fixed to the inner wall of the through groove 14 near the sealing cover 2, and the other end of the spring 15 is fixedly connected to the outer wall of the fixing rod 12. One end of the limiting rod 13 is located inside a limiting groove 16, and the limiting groove 16 is formed on the side of the sealing cover 2. A pull ring 17 is fixed to the other end of the limiting rod 13.

[0029] The second fixing mechanism includes a pull rod 18. The pull rod 18 is fixed to the bottom of the sealing cover 2. The lower end of the pull rod 18 is engaged inside a docking seat 19, and the bottom of the docking seat 19 is fixedly connected to the inner wall of the filter net 3. The lower end of the pull rod 18 and the docking seat 19 are fixedly connected by a bolt 20.

[0030] A water inlet pipe 21 is arranged on one side of the tank body 1, and the water inlet pipe 21 is located below the top of the filter net 3. An outlet pipe 22 is arranged above the filter net 3 on the other side of the tank body 1, ensuring that sewage enters the inside of the tank body 1 through the water inlet pipe 21, and impurities in the sewage are intercepted at the bottom of the filter net 3.

[0031] A sewage discharge pipe 23 is arranged at the bottom of the tank body 1, and a manual valve 24 is installed on the sewage discharge pipe 23. The sewage discharge pipe 23 can be opened through the manual valve 24, so that impurities inside the tank body 1 can be discharged through the sewage discharge pipe 23.

[0032] Handles 25 are fixed to both sides of the top of the sealing cover 2. The handles 25 are designed in a semi-circular structure. Through the design of the handles 25, it is convenient to lift the sealing cover 2.

[0033] The filter net 3 is designed in a hollow conical structure, and the inner side of the filter net 3 is parallel to the spray head 5. The side of the filter net 3 is in close contact with the inner wall of the tank body 1. At the same time, the central axis of the filter net 3 coincides with the central axis of the first pipe 4, increasing the filtering area of the filter net 3, reducing the probability of blockage of the filter net 3, and reducing the number of times of cleaning the filter net 3.

[0034] The outer side of the fixing rod 12 is in close contact with the inner side of the through groove 14, and the fixing rod 12 and the through groove 14 form a sliding structure. The end of the limiting rod 13 is in a snap connection with the limiting groove 16, ensuring that the limiting rod 13 can move left and right and can also rotate around the fixing rod 12.

[0035] Working principle: When using the filtration device for rural sewage treatment tanks, first start the external high-pressure water pump, so that the sewage in the sewage pool enters the interior of the tank body 1 through the water inlet pipe 21. The sewage passes through the filter screen 3 and then is discharged from the water outlet pipe 22. The impurities in the sewage are intercepted at the bottom of the filter screen 3;

[0036] When there are too many impurities at the bottom of the filter screen 3, affecting the filtration of sewage by the filter screen 3, start the external high-pressure water pump. The high-pressure water pump pumps the water in the water tank into the interior of the second pipeline 6, the first pipeline 4 and the spray head 5. Then start the motor 8. The motor 8 drives the spray head 5 to rotate through the first gear 9, the second gear 10 and the first pipeline 4, so that the water sprayed from the spray head 5 rotates, flushing the impurities at the bottom of the filter screen 3 to fall to the sewage discharge pipe 23. Then open the sewage discharge pipe 23 through the manual valve 24, so that the impurities inside the tank body 1 can be discharged through the sewage discharge pipe 23;

[0037] When the filter screen 3 is damaged and needs to be disassembled and replaced, pull the pull ring 17. At this time, the pull ring 17 drives the limit rod 13 and the through groove 14 to move away from the sealing cover 2, so that the spring 15 is compressed. At the same time, the end of the limit rod 13 is separated from the limit groove 16. Then rotate the pull ring 17 and the limit rod 13 through the fixing rod 12 so that the limit rod 13 is in a vertical state. Then separate the other limit rods 13 from the limit grooves 16 according to the above operation;

[0038] Then lift the sealing cover 2 upward through the handle 25. At this time, the sealing cover 2 pulls up the filter screen 3 from the interior of the tank body 1 through the pull rod 18, the docking seat 19 and the bolt 20. Then disassemble the bolt 20, so that the docking seat 19 on the filter screen 3 is separated from the pull rod 18, so that the filter screen 3 can be disassembled and replaced.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A filtering device for a rural sewage treatment tank, comprising a tank body (1), characterized in that: A sealing cover (2) is fixed to the top of the tank body (1) via a first fixing mechanism, a filter screen (3) is fixed to the bottom of the sealing cover (2) via a second fixing mechanism, and a cleaning mechanism is provided in the middle of the sealing cover (2); The cleaning mechanism comprises a first pipe (4), the first pipe (4) being rotatably mounted on the inner side of the middle of the sealing cover (2) via a sealing bearing, the lower end of the first pipe (4) being located inside the tank body (1) and being fixed with a water spray head (5), the upper end of the first pipe (4) being rotatably mounted with a second pipe (6) via a sealing bearing, the outer wall of the second pipe (6) being fixed to the top of the sealing cover (2) via a supporting plate (7), the top of the sealing cover (2) being fixed with a motor (8), the output end of the top of the motor (8) being fixed with a first gear (9), one side of the first gear (9) being meshed with a second gear (10), the inner wall of the second gear (10) being fixedly connected to the outer wall of the first pipe (4).

2. A filtering device for a rural sewage treatment tank according to claim 1, characterized in that: The first fixing mechanism comprises an L-shaped plate (11) and a limiting rod (13); an L-shaped plate (11) is fixed to the top of the outer side of the tank body (1); a fixing rod (12) is fixed between the L-shaped plates (11); a through slot (14) is provided in the middle of the limiting rod (13); an end of the fixing rod (12) passes through the inside of the through slot (14); one end of a spring (15) is fixed to the inner wall of the through slot (14) near the sealing cover (2); the other end of the spring (15) is fixedly connected to the outer wall of the fixing rod (12); one end of the limiting rod (13) is located inside the limiting slot (16); the limiting slot (16) is provided on the side of the sealing cover (2); and a pull ring (17) is fixed to the other end of the limiting rod (13).

3. A filtering device for a rural sewage treatment tank according to claim 1, characterized in that: The second fixing mechanism comprises a pull rod (18), the bottom of the sealing cover (2) is fixed with the pull rod (18), the lower end of the pull rod (18) is engaged with the inside of the docking seat (19), the bottom of the docking seat (19) is fixedly connected to the inner wall of the filter screen (3), and the lower end of the pull rod (18) is fixedly connected to the docking seat (19) by a bolt (20).

4. A filtering device for a rural sewage treatment tank according to claim 1, characterized in that: A water inlet pipe (21) is provided on one side of the tank body (1), and the water inlet pipe (21) is located below the top of the filter screen (3), and a water outlet pipe (22) is provided on the other side of the tank body (1) above the filter screen (3).

5. A filtering device for a rural sewage treatment tank according to claim 1, characterized in that: A sewage discharge pipe (23) is provided at the bottom of the tank body (1), and a manual valve (24) is installed on the sewage discharge pipe (23).

6. A filtering device for a rural sewage treatment tank according to claim 1, characterized in that: Handles (25) are fixed to both sides of the top of the sealing cover (2), and the handles (25) are designed to be a semi-annular structure.

7. A filtering device for a rural sewage treatment tank according to claim 1, characterized in that: The filter screen (3) is designed as a hollow conical structure, and the inner side of the filter screen (3) and the water spray head (5) are designed to be parallel to each other, and the side of the filter screen (3) and the inner wall of the tank body (1) are in contact with each other, and the central axis of the filter screen (3) and the central axis of the first pipe (4) are coincident with each other.

8. A filtering device for a rural sewage treatment tank according to claim 2, characterized in that: The outer side of the fixing rod (12) and the inner side of the through slot (14) are fitted to each other, and the fixing rod (12) and the through slot (14) form a sliding structure, and the end of the limiting rod (13) and the limiting slot (16) are snap-fitted.

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