Anti-blocking grit chamber

By using a reversible motor-driven threaded scraper and adjustable support feet in the grit chamber, the problems of sand and gravel clogging the filter screen and the inconvenience of transporting the grit chamber are solved, achieving efficient filtration and convenient transportation.

CN223760544UActive Publication Date: 2026-01-06JIANGSU ALANBELL ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202423204454.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2026-01-06
Estimated Expiration
2034-12-25

AI Technical Summary

Technical Problem

Existing grit chambers are prone to clogging of the filter screen by sand and gravel in sewage treatment, resulting in reduced filtration efficiency. In addition, grit chambers are large and inconvenient to move.

Method used

The system uses a reversible motor to drive a threaded rod, which in turn moves the scraper back and forth on the outer wall of the filter plate, pushing the sand and gravel into the sand guide pipe for collection. Combined with adjustable height support feet and casters, it achieves efficient sand and gravel processing and convenient transportation of the sedimentation tank.

Benefits of technology

It effectively prevents sand and gravel from clogging the filter screen, improves filtration efficiency, and facilitates the movement and transportation of the sedimentation tank.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of grit chambers, in particular to an anti-blocking grit chamber which comprises a grit chamber body, a water inlet pipe is fixedly connected to one side of the upper surface of the grit chamber body, a filter plate is fixedly connected to one side of the interior of the grit chamber body, openings are formed in the two sides of the upper surface of the filter plate, and a water outlet pipe is fixedly connected to one side of the upper surface of the filter plate. According to the scheme, a positive and negative rotation motor drives a threaded rod to periodically rotate forwards and backwards in the grit chamber body, the threaded rod is connected with a scraping plate, and the two limiting rods are inserted into the two sides of the scraping plate correspondingly; then a threaded rod rotates to drive a scraping plate to reciprocate left and right along the outer wall of a filter plate, so that the scraping plate pushes the filtered sand and stones to the position of an opening, the sand and stones are connected with a vertical pipe through a sand guide pipe, and the sand and stones enter the sand guide pipe along the vertical pipe to be collected; the effect of preventing the gravel on the sewage from blocking the water inlet pipe and the filter holes in the filter screen to influence the filtering is achieved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grit chamber, and particularly relates to a grit chamber capable of preventing blockage. BACKGROUND

[0002] In the sewage pretreatment sedimentation process, because the sewage contains solid sand and gravel, sand and gravel often flow into the next processing unit with water, which brings troubles to the subsequent processing, and therefore, the construction investment has to be increased to divert water and sand by prolonging the hydraulic retention time.

[0003] In the prior art, in the water and soil conservation construction, the existing grit chamber filters out sand and gravel through a filter screen, and if the sand and gravel are not treated in time, the filter screen is easily blocked by the sand and gravel, and the filtering effect is reduced, so that the gritting efficiency is reduced, and the applicability is poor, and in the process of use, the grit chamber is too large in size, and it is inconvenient to carry the grit chamber, and a large amount of labor is required when moving, which brings inconvenience to carrying. Therefore, in order to solve the above problems, the present application provides a grit chamber capable of preventing blockage. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problems that the sand and gravel cannot be treated and the grit chamber is inconvenient to carry, the present application provides a grit chamber capable of preventing blockage.

[0005] The grit chamber capable of preventing blockage provided by the present application comprises a grit chamber body, a water inlet pipe is fixedly connected to one side of the upper surface of the grit chamber body, a filter plate is fixedly connected to one side of the inner part of the grit chamber body, openings are formed in the upper surfaces of both sides of the filter plate, limiting rods are fixedly connected to both sides of the filter plate in the inner part of the grit chamber body, a threaded rod is rotatably connected to one side of the inner part of the grit chamber body between the two limiting rods, the threaded rod extends to the outside of the grit chamber body, a scraper is slidably connected to the upper surface of the filter plate through the two limiting rods and the threaded rod, a forward and reverse motor is fixedly connected to one side of the lateral surface of the grit chamber body, and the driving end of the forward and reverse motor penetrates the inner wall of the grit chamber body and is fixedly connected to one side of the threaded rod.

[0006] Preferably, vertical pipes are fixedly connected to the lower surfaces of the filter plate through the openings, and two sand guide pipes are fixedly connected to the inner part of the grit chamber body through the two vertical pipes.

[0007] Preferably, pipe covers are arranged on the opposite sides of the two sand guide pipes, and the sand guide pipes are in the shape of a circular arc.

[0008] Preferably, a water collecting cavity is arranged on one side of the inner part of the grit chamber body, and a water outlet pipe is fixedly connected to the outer surface of the grit chamber body on one side corresponding to the water collecting cavity.

[0009] Preferably, the lower surface of the sand trap body is fixedly connected with support legs at four corners, and the inner side of each support leg is provided with a threaded groove.

[0010] Preferably, the lower surface of the support leg is threadedly connected with a support lead screw through the threaded groove, the outer wall of the support lead screw is fixedly connected with a knob on one side, and the support lead screw is fixedly connected with a support foot on one side.

[0011] Preferably, the lower surface of the sand trap body is fixedly connected with a support plate at the center position, and the lower surface of the support plate is fixedly connected with moving wheels at four corners.

[0012] To sum up, the present application has the following beneficial technical effects:

[0013] 1. The threaded rod is periodically forward and reverse rotated in the sand trap body by the forward and reverse motor, the threaded rod is connected with the scraper, two limiting rods are respectively inserted into the two sides of the scraper, then the scraper is moved left and right along the outer wall of the filter plate by the rotation of the threaded rod, the sand and stone filtered out by the scraper are pushed to the position of the opening, the sand and stone are collected in the inner part of the sand guide pipe through the connection between the sand guide pipe and the vertical pipe, then the staff can open the pipe cover regularly, the sand and stone collected in the inner part of the sand guide pipe can slide out along the inner wall of the sand guide pipe, so as to improve the filtering efficiency of the filter plate; compared with the prior art, the device can prevent the sand and stone in the sewage from blocking the filter hole of the filter screen and the inlet pipe, and affect the filtering effect, thereby improving the applicability of the device.

[0014] 2. The support lead screw is rotated by rotating the knob, so that the height of the support foot is adjusted, then the support plate is moved upward, so that the moving wheels at the bottom of the support plate are in contact with the ground, thereby the sand trap body can be pushed to move; compared with the prior art, the device has the effect of facilitating the transportation of the sand trap. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structure schematic view of the sand trap as a whole according to the embodiment of the present application;

[0016] Figure 2 is a structure schematic view of the sand trap according to the embodiment of the present application;

[0017] Figure 3 is a structure schematic view of the sand trap according to the embodiment of the present application;

[0018] Figure 4 is a structure schematic view of the support foot according to the embodiment of the present application.

[0019] Explanation of reference signs: 1, grit tank body; 2, water inlet pipe; 3, forward and reverse motor; 4, sand guide pipe; 5, pipe cover; 6, water outlet pipe; 7, supporting leg; 8, supporting screw rod; 9, knob; 10, supporting foot; 11, threaded groove; 12, moving wheel; 13, threaded rod; 14, limiting rod; 15, scraper; 16, opening; 17, filter plate; 18, water collecting cavity; 19, vertical pipe; 20, supporting plate. DETAILED DESCRIPTION

[0020] The following will be described in detail in combination with the accompanying drawings. Figure 1 - Figure 4 The present application is further described in detail.

[0021] Example one

[0022] Please refer to Figures 1-4 The utility model provides a kind of anti-clogging grit tank technical scheme:

[0023] A kind of anti-clogging grit tank, Figures 1-4The utility model provides a sand trap, including sand trap body 1, the upper surface side of sand trap body 1 is fixedly connected with water inlet pipe 2, by installing water inlet pipe 2 at sand trap body 1 top, make by water inlet pipe 2 to sand trap body 1 inside delivery water and carry out filter processing, the inside side of sand trap body 1 is fixedly connected with filter plate 17, by installing filter plate 17 at water inlet pipe 2 bottom, make by filter plate 17 to the water of delivery in and carry out filter processing, make the sand contained in water and filter out, improve the cleanliness of water, the upper surface both sides of filter plate 17 are all seted up with opening 16, by the opening 16 of filter plate 17 top both sides set up, it is convenient to filter out sand and carry out processing, the inside both sides of sand trap body 1 correspond filter plate 17 are fixedly connected with limiting rod 14, the inside of sand trap body 1 is fixedly connected with two sand guide pipes 4 through two vertical pipes 19, by installing vertical pipe 19 respectively at opening 16 bottom, then sand is pushed to the inside of opening 16 when the scraping plate 15 reciprocatingly moves, sand can enter the inside of opening 16, simultaneously by sand guide pipe 4 and vertical pipe 19 are connected, then sand enters the inside of sand guide pipe 4 along vertical pipe 19 and is collected, reached the effect that it is convenient to filter out sand and carry out concentrated processing.

[0024] Further, the lower surface of the filter plate 17 is fixedly connected with a vertical pipe 19 through the opening 16, and the inside of the sand trap body 1 is fixedly connected with two sand guide pipes 4 through the two vertical pipes 19. The vertical pipe 19 is installed at the bottom of the opening 16. When the scraping plate 15 reciprocatingly moves and pushes the sand into the opening 16, the sand can enter the inside of the opening 16. At the same time, the sand guide pipe 4 is connected with the vertical pipe 19. Then the sand enters the inside of the sand guide pipe 4 along the vertical pipe 19 and is collected. The effect that it is convenient to filter out sand and carry out concentrated processing is achieved.

[0025] Further, the two sand pipes 4 are provided with pipe covers 5 on the opposite sides, and the sand pipes 4 are in the shape of a circular arc, the pipe covers 5 are installed on the outer walls of the sand pipes 4 through a clamping structure, so that the staff can open the pipe covers 5, and the sand collected in the sand pipes 4 can slide out along the inner walls of the sand pipes 4, and the sand pipes 4 are in the shape of a circular arc, so that the sand will not stay in the sand pipes 4 for too long, achieving the purpose of facilitating the removal of the filtered sand from the inside of the sand trap body 1.

[0026] Further, the inside of the sand trap body 1 is provided with a water collecting cavity 18, and the outer surface of the sand trap body 1 is fixedly connected with a water outlet pipe 6 corresponding to one side of the water collecting cavity 18, the water collecting cavity 18 is opened in the inside of the sand trap body 1, so that the filtered water can enter the water collecting cavity 18, and the water collecting cavity 18 is connected with the water outlet pipe 6 installed on the outer wall of the sand trap body 1, so that the filtered water flows out to the outside through the water outlet pipe 6, and since the volume of the water collecting cavity 18 is greater than that of the sand filtering mechanism, the water will not flow out of the sand pipes 4 in large quantities.

[0027] Example two

[0028] Please refer to Figures 1-4 and on the basis of example one, further obtained:

[0029] Further, the lower surface of the support leg 7 is fixedly connected with a support screw rod 8 through the threaded groove 11, the outer wall of the support screw rod 8 is fixedly connected with a knob 9 on one side, and the support screw rod 8 is fixedly connected with a support foot 10 on one side, the size of the threaded groove 11 is matched with the size of the support screw rod 8, the support screw rod 8 is connected with the knob 9, so that the support screw rod 8 is rotated by rotating the knob 9, the support screw rod 8 is connected with the support leg 7 by being rotated into the threaded groove 11, and then the support foot 10 at the bottom of the support screw rod 8 supports the sand trap body 1, so that the sand trap body 1 operates stably, achieving the purpose of stably supporting the sand trap body 1, and facilitating the stable operation of the internal structure of the sand trap body 1.

[0030] Further, the lower surface of the support leg 7 is fixedly connected with a support screw rod 8 through the threaded groove 11, the outer wall of the support screw rod 8 is fixedly connected with a knob 9 on one side, and the support screw rod 8 is fixedly connected with a support foot 10 on one side, the size of the threaded groove 11 is matched with the size of the support screw rod 8, the support screw rod 8 is connected with the knob 9, so that the support screw rod 8 is rotated by rotating the knob 9, the support screw rod 8 is connected with the support leg 7 by being rotated into the threaded groove 11, and then the support foot 10 at the bottom of the support screw rod 8 supports the sand trap body 1, so that the sand trap body 1 operates stably, achieving the purpose of stably supporting the sand trap body 1, and facilitating the stable operation of the internal structure of the sand trap body 1.

[0031] Further, the lower surface center position of the sand trap body 1 is fixedly connected with a support plate 20, the lower surface four corners of the support plate 20 are fixedly connected with moving wheels 12, the bottom four corners of the support plate 20 are provided with moving wheels 12, and the front two moving wheels 12 are directional wheels, and the rear two moving wheels 12 are universal wheels, so that the support lead screw 8 is driven to rotate by rotating the knob 9, the height of the support foot 10 is adjusted, and then the support foot 10 is driven to move upwards, so that the moving wheels 12 at the bottom of the support plate 20 are in contact with the ground, thereby the sand trap body 1 can be pushed to move, and the sand trap body 1 is conveniently transported.

[0032] The implementation principle of the anti-clogging sand trap provided in the embodiment of the application is as follows: when the device is used, first, sewage is delivered into the sand trap body 1 through the water inlet pipe 2, so that the filter plate 17 filters the delivered water, the threaded rod 13 is periodically forward and reverse rotated in the sand trap body 1 by the forward and reverse motor 3, the threaded rod 13 is connected with the scraper 15, the two limiting rods 14 are respectively inserted into the two sides of the scraper 15, then the threaded rod 13 drives the scraper 15 to move back and forth along the outer wall of the filter plate 17, so that the scraped sand and stones are pushed to the position of the opening 16, the sand and stones enter the sand guide pipe 4 through the vertical pipe 19, so that the sand and stones are collected in the sand guide pipe 4, then the staff can open the pipe cover 5 regularly, the collected sand and stones in the sand guide pipe 4 can slide out along the inner wall of the sand guide pipe 4, so as to improve the filtering efficiency of the filter plate 17, finally the support lead screw 8 is driven to rotate by rotating the knob 9, the height of the support foot 10 is adjusted, then the support foot 10 is driven to move upwards, so that the moving wheels 12 at the bottom of the support plate 20 are in contact with the ground, thereby the sand trap body 1 can be pushed to move, and the sand trap body 1 is conveniently transported.

[0033] The above describes the exemplary implementation of the anti-clogging sand trap provided in the disclosure with reference to the preferred embodiment, however, those skilled in the art can understand that various modifications and improvements can be made to the above specific embodiment without departing from the concept of the disclosure, and various technical features and structures provided in the disclosure can be combined without departing from the protection scope of the disclosure, and the protection scope of the disclosure is determined by the appended claims.

Claims

1. A non-clogging grit chamber comprising a grit chamber body (1), characterized in that: The upper surface side of the sand trap body (1) is fixedly connected with a water inlet pipe (2), the inner side of the sand trap body (1) is fixedly connected with a filter plate (17), the upper surface of the filter plate (17) is provided with openings (16) on both sides, the inner side of the sand trap body (1) is fixedly connected with limiting rods (14) on both sides corresponding to the filter plate (17), the inner side of the sand trap body (1) is rotatably connected with a threaded rod (13) between the two limiting rods (14), and the threaded rod (13) extends to the outside of the sand trap body (1), the upper surface of the filter plate (17) is slidably connected with a scraper (15) through the two limiting rods (14) and the threaded rod (13), and the side surface of the sand trap body (1) is fixedly connected with a forward and reverse motor (3), and the driving end of the forward and reverse motor (3) penetrates the inner wall of the sand trap body (1) and is fixedly connected on one side of the threaded rod (13).

2. A non-clogging grit chamber according to claim 1, wherein: The lower surface of the filter plate (17) is fixedly connected with a vertical pipe (19) through the opening (16), and the inner side of the sand trap body (1) is fixedly connected with two sand guide pipes (4) through the two vertical pipes (19).

3. A non-clogging grit chamber according to claim 2, wherein: The opposite sides of the two sand guide pipes (4) are provided with pipe covers (5), and the sand guide pipes (4) are arranged in a circular arc shape.

4. A non-clogging grit chamber according to claim 1, wherein: The inner side of the sand trap body (1) is provided with a water collecting cavity (18), and the outer surface of the sand trap body (1) is fixedly connected with a water outlet pipe (6) on one side corresponding to the water collecting cavity (18).

5. A non-clogging grit chamber according to claim 1, wherein: The lower surface of the sand trap body (1) is fixedly connected with supporting legs (7) at the four corners, and the inner side of the supporting legs (7) is provided with a threaded groove (11).

6. A non-clogging grit chamber according to claim 5, wherein: The lower surface of the supporting leg (7) is threadedly connected with a supporting screw rod (8) through the threaded groove (11), the outer wall of the supporting screw rod (8) is fixedly connected with a knob (9) on one side, and the supporting screw rod (8) is fixedly connected with a supporting foot (10) on one side.

7. A non-clogging grit chamber according to claim 1, wherein: The lower surface of the sand trap body (1) is fixedly connected with a supporting plate (20) at the center position, and the lower surface of the supporting plate (20) is fixedly connected with moving wheels (12) at the four corners.