Grating for coarse filtration of rural sewage

Abstract

The utility model discloses a grid for coarse filtration of rural sewage, which comprises a sewage channel, two sides of the front part in the sewage channel are respectively provided with a sliding chute I, two sides of the rear part in the sewage channel are respectively provided with a sliding chute II, a water retaining structure is arranged on one opposite side of the two sliding chutes I, a coarse grid plate is arranged on one opposite side of the two sliding chutes II, and two sides of the coarse grid plate are respectively provided with a sliding block II. The sides, away from each other, of the tops of the two second sliding blocks are each provided with a containing cavity, and the two quick-release structures are arranged in the containing cavities in a penetrating mode. When water needs to be blocked, the blocking plate is horizontally pulled through the first handle, so that the limiting shaft moves to the bottom of the movable groove, the blocking plate is turned over and inserted into the first sliding groove till the bottom of the blocking plate abuts against the inner wall of the sewage channel, the structure is simple, the turning movement of the blocking plate is limited through the first sliding groove, and the water blocking effect is good. Large-particle impurities are prevented from pushing the blocking plate to turn over, the blocking effect of the blocking plate is guaranteed, the structure is simple, operation is convenient, the coarse grating plate can be rapidly disassembled through the rapid disassembling structure, and the maintenance difficulty of workers is lowered.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a grid for coarse filtering of rural sewage. Background Art

[0002] Industrial sewage and domestic sewage contain large particles of impurities, such as fibers, plastics, wood strips, sand and gravel, etc. Therefore, sewage must be pre-treated before treatment. Common sewage pre-treatment equipment includes screens. Screen equipment is generally used on the water inlet channel of sewage treatment or at the inlet of the water collection tank of the lifting pump station to reduce the processing load of the subsequent water treatment process and protect water pumps, pipes, instruments, etc. At present, the existing sewage treatment grids in China mainly include plate-type artificial screens and rotary automatic screens. The general rotary automatic screens are large in size and not convenient for use in rural areas. Most rural areas use plate screens.

[0003] Publication number CN116392877A discloses a screen for coarse filtration of rural sewage. To address the problem that existing sewage treatment grids mainly include plate-type artificial screens and rotary automatic screens, the general rotary automatic screens are large in size and inconvenient to use in rural areas, while the plate-type screens are more troublesome to clean during use and are prone to clogging. Moreover, the general plate-type screens cannot filter medium-sized impurities or foreign matter, which increases the difficulty of sewage treatment. The screen includes a water inlet, a water outlet, a sewage channel, and a coarse screen. The water inlet and the water outlet are both arranged inside the sewage channel, and the coarse screen is arranged between the sewage channel and the water outlet; it also includes: a front screen plate, which is arranged inside the sewage channel and the front screen plate passes through the sewage channel, and the front screen plate is provided with slide grooves on both sides, and the front screen plate is fixed to both sides of the sewage channel through the slide grooves and can move up and down. In addition, the existing screens have the following disadvantages during use:

[0004] (1) The blocking plate in the existing coarse filtration grid is released by toggling a latch when in use, and then the blocking plate is flipped over by holding a handle to block water. However, the operator is required to hold the handle all the time to ensure the blocking effect of the blocking plate. Due to the flow of sewage and the inclusion of large particles of impurities, once the operator lets go, the blocking plate will flip over, thereby losing the function of blocking large particles of impurities. The structure is complicated and increases the difficulty of operation.

[0005] (2) The coarse screen in the existing coarse filtration screen cannot be disassembled. Although the front screen plate structure can block and collect large particles of impurities, there are still small and medium-sized impurities that need to be filtered by the coarse screen. Long-term use will cause the coarse screen to be blocked. Once the coarse screen is blocked, it will limit the amount of sewage passing through, resulting in a reduction in the flow of subsequent treatment processes, which not only affects the overall treatment efficiency, but also increases the difficulty of maintenance for staff.

[0006] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0007] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a grid for coarse filtration of rural sewage.

[0008] In order to solve the above problems, the technical solution of the present utility model includes:

[0009] A sewage channel, wherein the front side of the interior of the sewage channel is provided with a water inlet, the rear side of the interior of the sewage channel is provided with a water outlet, the two sides of the front portion of the sewage channel are respectively provided with a chute 1, the two sides of the rear portion of the sewage channel are respectively provided with a chute 2, the tops of the two chutes 2 are respectively provided with slots on opposite sides, and a front grille plate structure is provided between the two chutes 1 and chute 2;

[0010] A water retaining structure, the water retaining structure being provided on one opposite side of the two chutes;

[0011] A coarse grid plate, the coarse grid plate is arranged on the opposite side of the two chute 2, the two sides of the coarse grid plate are respectively fixedly connected with the slider 2, and the top of the two sliders 2 are respectively provided with a cavity on the side away from each other;

[0012] There are two groups of quick-release structures, and the two groups of quick-release structures are respectively arranged inside the cavity.

[0013] Furthermore, the water retaining structure includes:

[0014] There are two fixing plates, each of which is fixedly connected to two sides of the front top outer wall of the sewage channel, and the top opposite sides of the two fixing plates are fixedly connected to the limit axis;

[0015] The blocking plate is sleeved on the outer wall of the limiting shaft, the front part of the blocking plate is provided with a plurality of equally spaced water leakage holes, and the interior of the blocking plate is provided with a penetrating movable groove.

[0016] Furthermore, each group of the quick-release structure includes a sliding rod, a spring, a sliding block, an insertion rod and a pushing rod. A sliding rod is provided on one side of the interior of the cavity, and a spring is provided on the other side. The outer wall of the sliding rod is sleeved with a sliding block. One end of the spring is fixedly connected to the inner wall of the cavity, and the other end is fixedly connected to the insertion rod. The sliding block and the insertion rod are connected by a connecting rod, and the top of the sliding block is fixedly connected to the pushing rod.

[0017] Furthermore, a handle 2 is fixedly connected to the top of the coarse grid plate, and the two sliding blocks 2 are respectively adapted to be connected to the sliding grooves 2.

[0018] Furthermore, both sides of the blocking plate are respectively slidably connected to a slide groove, sealing rings are respectively sleeved on both sides of the outer wall of the blocking plate, a handle is fixedly connected to the top of the blocking plate, the movable groove is adaptively connected to the limit shaft, and the width of the blocking plate is greater than the width of the sewage channel.

[0019] Furthermore, the two ends of the sliding rod are respectively fixedly connected to the inner wall of the cavity, the shape of the insertion rod is L-shaped, and the end of the insertion rod away from the spring passes through the slider 2 and is adapted to be connected to the slot, and the shape of the push rod is L-shaped, and the end of the push rod away from the sliding block passes through the slider 2 and is fixedly connected to the pressing block.

[0020] The advantages of this utility model compared with the existing technology are:

[0021] 1. The utility model provides a screen for coarse filtration of rural sewage. When water blocking is required, the blocking plate is pulled horizontally by handle 1, so that the limiting shaft moves to the bottom of the movable groove. The blocking plate is then flipped and inserted into the interior of the chute 1 until its bottom abuts the inner wall of the sewage channel. The structure is simple. The flipping movement of the blocking plate limited by the chute 1 prevents large particles of impurities from pushing the blocking plate to flip, thereby ensuring the blocking effect of the blocking plate. The structure is simple and the operation is convenient.

[0022] 2. The utility model provides a screen for coarse filtration of rural sewage. By pressing a pressing block to one side of the coarse screen plate at the same time, the pressing block pushes the push rod to retract to the inner wall of the cavity. The cooperation of the sliding block and the connecting rod drives the insertion rod to retract to the inner wall of the cavity and squeeze the spring, thereby breaking away from the limit of the slot. The coarse screen plate can be lifted up for cleaning. The utility model has a simple structure, is easy to operate, and avoids clogging. It not only increases the sewage treatment efficiency, but also reduces the difficulty of maintenance for staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional diagram of the present utility model.

[0024] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0025] Figure 3 yes Figure 1 A magnified three-dimensional image of the middle water retaining structure.

[0026] Figure 4 yes Figure 1 Enlarged view of point B in the middle.

[0027] Figure 5 yes Figure 4 Schematic cross-sectional view of the structure near the middle quick-release structure.

[0028] As shown in the figure: 1. Sewage channel; 2. Water inlet; 3. Water outlet; 4. Chute 1; 5. Chute 2; 6. Water retaining structure; 601. Fixed plate; 602. Limiting shaft; 603. Blocking plate; 604. Handle 1; 605. Leakage hole; 606. Movable groove; 7. Front grille plate structure; 8. Coarse grille plate; 9. Slider 2; 10. Handle 2; 11. Quick release structure; 1101. Sliding rod; 1102. Spring; 1103. Sliding block; 1104. Insert rod; 1105. Connecting rod; 1106. Push rod; 1107. Pressing block; 12. Slot. DETAILED DESCRIPTION

[0029] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present disclosure. Rather, they are merely examples of devices consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described 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; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] Example 1:

[0032] like Figures 1 to 5 As shown, this embodiment proposes a grid for coarse filtration of rural sewage, including a sewage channel 1, a water retaining structure 6, a coarse grid plate 8 and a quick-release structure 11. The front side of the interior of the sewage channel 1 is provided with a water inlet 2, and the rear side of the interior of the sewage channel 1 is provided with a water outlet 3. Chutes 1 4 are respectively provided on both sides of the front of the sewage channel 1, and chutes 2 5 are respectively provided on both sides of the rear of the sewage channel 1. Slots 12 are respectively provided on the opposite sides of the tops of the two chutes 2 5. A front grid plate structure 7 (which belongs to the prior art and is not described here) is provided between the two chutes 1 4 and the chutes 2 5. The water retaining structure 6 is provided on the opposite sides of the two chutes 1 4, and the coarse grid plate 8 is provided on the opposite sides of the two chutes 2 5. Sliders 2 9 are respectively fixedly connected to the two sides of the coarse grid plate 8, and cavities are respectively provided on the separated sides of the tops of the two sliders 2 9. There are two groups of quick-release structures 11, and the two groups of quick-release structures 11 are respectively penetrated into the cavities. A handle 2 10 is fixedly connected to the top of the coarse grid plate 8, and the two sliders 2 9 are respectively adapted to be connected to the chutes 2 5.

[0033] Example 2:

[0034] The scheme in Example 1 is further introduced below in combination with the specific working method, as described below for details: the water retaining structure 6 includes a fixed plate 601 and a blocking plate 603. There are two fixed plates 601, and the two fixed plates 601 are respectively fixedly connected to the two sides of the front top outer wall of the sewage channel 1. The top opposite sides of the two fixed plates 601 are fixedly connected to the limiting shaft 602, and the blocking plate 603 is sleeved on the outer wall of the limiting shaft 602. The front part of the blocking plate 603 is provided with a number of equidistant water leakage holes 605, and the interior of the blocking plate 603 is provided with a through movable groove 606. The two sides of the blocking plate 603 are respectively slidably connected to the slide groove 4, and the outer wall of the blocking plate 603 is respectively sleeved with sealing rings. The top of the blocking plate 603 is fixedly connected to the handle 1 604, and the movable groove 606 is adaptively connected to the limiting shaft 602. The width of the blocking plate 603 is greater than the width of the sewage channel 1.

[0035] When it is necessary to block water, the blocking plate 603 is pulled horizontally by handle 1 604, so that the limiting shaft 602 moves to the bottom of the movable groove 606, and then the blocking plate 603 is flipped and inserted into the interior of the chute 1 4 until its bottom abuts against the inner wall of the sewage channel 1. The structure is simple, and the flipping movement of the blocking plate 603 is limited by the chute 1 4 to prevent large particles of impurities from pushing the blocking plate 603 to flip, thereby ensuring the blocking effect of the blocking plate 603. The structure is simple and the operation is convenient.

[0036] Example 3:

[0037] The scheme in Example 2 is further introduced below in combination with the specific working method, as described below for details: Each set of quick-release structures 11 includes a sliding rod 1101, a spring 1102, a sliding block 1103, an insertion rod 1104 and a pushing rod 1106. A sliding rod 1101 is provided on one side of the cavity, and a spring 1102 is provided on the other side. The outer wall of the sliding rod 1101 is sleeved with the sliding block 1103, one end of the spring 1102 is fixedly connected to the inner wall of the cavity, and the other end is fixedly connected to the insertion rod 1104, the sliding block 1103 and the insertion rod 1104 are connected by a connecting rod 1105, and the top of the sliding block 1103 is fixedly connected to the pushing rod 1106.

[0038] Example 4:

[0039] The following is a further introduction to the scheme in Example 3 in combination with the specific working method, as described below for details: the two ends of the sliding rod 1101 are fixedly connected to the inner wall of the cavity, the insertion rod 1104 is L-shaped, and the end of the insertion rod 1104 away from the spring 1102 passes through the slider 2 9 and is adapted to be connected to the slot 12, the push rod 1106 is L-shaped, and the end of the push rod 1106 away from the sliding block 1103 passes through the slider 2 9 and is fixedly connected to the pressing block 1107.

[0040] By pressing the pressing block 1107 to one side of the coarse grid plate 8 at the same time, the pressing block 1107 pushes the pushing rod 1106 to retract the inner wall of the cavity, and the cooperation of the sliding block 1103 and the connecting rod 1105 drives the insertion rod 1104 to retract the inner wall of the cavity and squeeze the spring 1102, thereby disengaging from the limit of the slot 12, and the coarse grid plate 8 can be lifted upward for cleaning. The structure is simple, the operation is convenient, and blockage is avoided, which not only increases the sewage treatment efficiency, but also reduces the difficulty of maintenance for staff.

[0041] When it is needed to clean the front grille plate structure 7 and the coarse grille plate 8, the blocking plate 603 is pulled horizontally by the handle 1 604, so that the limiting shaft 602 moves to the bottom of the movable groove 606, and then the blocking plate 603 is turned over and inserted into the interior of the slide 1 4 until its bottom abuts against the inner wall of the sewage channel 1. The structure is simple, and the flipping movement of the blocking plate 603 is limited by the slide 1 4 to prevent large particles of impurities from pushing the blocking plate 603 to flip, thereby ensuring the blocking effect of the blocking plate 603. Then, the front grille plate structure 7 is taken out for cleaning, and then the pressing block 1107 is pressed toward one side of the coarse grille plate 8 at the same time. The pressing block 1107 pushes the push rod 1106 to retract the inner wall of the cavity, and the sliding block 1103 is used. The cooperation with the connecting rod 1105 drives the insertion rod 1104 to contract to the inner wall of the cavity and squeeze the spring 1102, thereby disengaging from the limit of the slot 12, and the coarse grid plate 8 can be lifted upward for cleaning. When the cleaning is completed, the coarse grid plate 8 is directly inserted into the opposite side of the two slide grooves 5, and the spring 1102 pushes the insertion rod 1104 to contract and stretch, so that the insertion rod 1104 is automatically inserted into the interior of the slot 12 to ensure the stability of the coarse grid plate 8. Then, the blocking plate 603 is lifted upward by the handle 1 604 until the bottom of the outer wall of the limiting shaft 602 abuts against the bottom of the inner wall of the movable groove 606, and then the blocking plate 603 is flipped 90 degrees, and the blocking plate 603 is supported on both sides of the top of the sewage channel 1 and placed horizontally.

[0042] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0044] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A screen for coarse filtration of rural sewage, characterized in that: include: A sewage channel (1), wherein a water inlet (2) is provided on the front side of the interior of the sewage channel (1), a water outlet (3) is provided on the rear side of the interior of the sewage channel (1), a chute (4) is provided on both sides of the front portion of the sewage channel (1), a chute (5) is provided on both sides of the rear portion of the sewage channel (1), slots (12) are provided on opposite sides of the tops of the two chute (5), and a front grille plate structure (7) is provided between the two chute (4) and the chute (5); A water retaining structure (6), the water retaining structure (6) is arranged on the opposite side of the two chutes (4), and the water retaining structure (6) comprises: a fixed plate (601) and a blocking plate (603), the number of the fixed plates (601) is two, the two fixed plates (601) are respectively fixedly connected to the two sides of the front top outer wall of the sewage channel (1), the top opposite sides of the two fixed plates (601) are fixedly connected to the limiting shaft (602), the blocking plate (603) is sleeved on the outer wall of the limiting shaft (602), the front part of the blocking plate (603) is provided with a plurality of equidistant penetrating water leakage holes (605), and the interior of the blocking plate (603) is provided with a penetrating movable groove (606); A coarse grid plate (8), the coarse grid plate (8) being arranged on opposite sides of the two chute 2 (5), the two sides of the coarse grid plate (8) being fixedly connected with slider 2 (9), and the tops of the two slider 2 (9) being separated from each other and respectively provided with a cavity; The quick-detachable structure (11) is provided in two groups, and the two groups of quick-detachable structures (11) are respectively arranged inside the cavity.

2. A screen for coarse filtration of rural sewage according to claim 1, characterized in that: A handle 2 (10) is fixedly connected to the top of the coarse grid plate (8), and the two sliders 2 (9) are respectively adapted to be connected to the chute 2 (5).

3. The screen for coarse filtration of rural sewage according to claim 1, characterized in that: The two sides of the blocking plate (603) are respectively slidably connected to the sliding groove (4), and the two sides of the outer wall of the blocking plate (603) are respectively sleeved with sealing rings. The top of the blocking plate (603) is fixedly connected to the handle (604), and the movable groove (606) is adaptively connected to the limiting shaft (602). The width of the blocking plate (603) is greater than the width of the sewage channel (1).

4. The screen for coarse filtration of rural sewage according to claim 1, characterized in that: Each group of the quick-release structure (11) includes a sliding rod (1101), a spring (1102), a sliding block (1103), an insertion rod (1104) and a pushing rod (1106). The sliding rod (1101) is provided on one side of the interior of the cavity, and the spring (1102) is provided on the other side. The outer wall of the sliding rod (1101) is sleeved with the sliding block (1103). One end of the spring (1102) is fixedly connected to the inner wall of the cavity, and the other end is fixedly connected to the insertion rod (1104). The sliding block (1103) and the insertion rod (1104) are connected by a connecting rod (1105). The top of the sliding block (1103) is fixedly connected to the pushing rod (1106).

5. A screen for coarse filtration of rural sewage according to claim 4, characterized in that: The two ends of the sliding rod (1101) are respectively fixedly connected to the inner wall of the cavity, the shape of the insertion rod (1104) is L-shaped, and the end of the insertion rod (1104) away from the spring (1102) passes through the second slider (9) and is adapted to be connected with the slot (12), and the shape of the pushing rod (1106) is L-shaped, and the end of the pushing rod (1106) away from the sliding block (1103) passes through the second slider (9) and is fixedly connected with the pressing block (1107).

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