Assembled ladder grid trash cleaner
By using a rigid conveyor belt and air collection plate design, the problem of inconvenient cleaning of large-volume debris in existing technologies has been solved, achieving efficient debris separation and water discharge, and improving the working quality of the cleaning machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-06
- Publication Date
- 2026-04-14
AI Technical Summary
Existing stepped bar screen cleaning machines are difficult to effectively clean large or long debris, especially tree branches and fabrics. Furthermore, these debris are difficult to fall off when moved to the upper position, making cleaning inconvenient.
It adopts a rigid conveyor belt structure, combined with sprockets, chains and cutting blades in the water passage gap. The cutting blades cut debris in the water passage gap, and at the same time, the airflow from the air collecting plate and the air outlet blows the debris down to the sludge collection box, achieving efficient separation and cleaning of debris.
It improves the efficiency of cleaning large debris, prevents tangling, enhances the decontamination effect, and ensures the smooth discharge of water and the effective collection of debris.
Smart Images

Figure CN120664617B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of bar screen cleaning technology and equipment in the environmental protection field, specifically a modular stepped bar screen cleaning machine. Background Technology
[0002] In the existing technology, the stepped bar screen cleaning machine is specifically set as a rotary cleaning mechanism, which usually has an inclined conveyor belt, and then a bar screen structure is set on the conveyor belt. Through the rotary motion of the conveyor belt and the bar screen, debris and other objects are separated from the water body, thereby achieving cleaning.
[0003] Existing technical structures, such as the "a bar screen cleaning machine" disclosed in Publication (Announcement) No.: CN111704181A, use an adjustment component to adjust the angle of the sewage machine frame, enabling it to adapt to different angles for sewage cleaning. The operation is simple and easy to adjust.
[0004] For example, the "Bar Screening Machine" disclosed in Publication (Announcement) No. CN118954661A solves the problem in existing technologies where wastewater contains various types and sizes of debris, making it difficult for existing bar screening machines to clean it quickly and thoroughly.
[0005] Regardless of the above-mentioned technical solutions or existing technical solutions, the decontamination machine will have the problem of difficult cleaning of debris in actual use, especially when the debris is large in size and long in length, such as tree branches, or fabric debris, or thread debris. After these debris are separated by the grid, they are very likely to be difficult to clean due to their large size and entanglement.
[0006] In addition, when these debris are moved to the upper position, they are more difficult to fall off the grille due to gravity, making cleaning inconvenient.
[0007] Therefore, in order to solve the above problems, it is necessary to develop a modular stepped bar screen cleaning machine with a reasonable structure and improved work quality. Summary of the Invention
[0008] The purpose of this invention is to address the shortcomings of existing technologies by providing a modular stepped bar screen cleaning machine; the technical solution is as follows:
[0009] A modular stepped bar screen cleaning machine includes an obliquely arranged conveying mechanism. The conveying mechanism includes two upper and lower conveying rollers, and three modular conveying belts are correspondingly arranged between the upper and lower conveying rollers. The three conveying belts have the same width, and all three conveying belts are rigid belts. Two water passage gaps are formed between the three conveying belts, and the three conveying belts move synchronously with the upper and lower conveying rollers.
[0010] Furthermore, each of the three conveyor belts is equipped with a stepped grid. The grids on the three conveyor belts are positioned correspondingly, and the spacing between the grids on the same conveyor belt is the same. The area enclosed by the two upper and lower conveyor rollers and the conveyor belts is set as the middle area. Two sets of sprockets are installed at the upper end of this middle area. Each set of sprockets is equipped with two wheel bodies, and the tilting direction of the two sets of sprockets is consistent with the tilting direction of the two conveyor rollers. The positions of the two sets of sprockets correspond to the positions of the two water passage gaps.
[0011] Both sets of sprockets are equipped with chains, which are located within the water passage gap. Each chain is also equipped with a cutting blade, which extends upward from the water passage gap. The conveyor belt moves upward under the action of the conveyor rollers, carrying away and separating impurities in the water through the grid. Excess water is discharged from the water passage gap. When the impurities are carried away to the upper position, the chain moves in the opposite direction, cutting the impurities within the water passage gap through the cutting blade.
[0012] Furthermore, a first drive motor is installed on the conveyor roller, and two sets of sprockets are installed as one unit through a shaft. A second drive motor is installed on the shaft, and the rotation directions of the first drive motor and the second drive motor are controlled accordingly, so that the rotation direction of the chain is opposite to or the same as the rotation direction of the conveyor belt.
[0013] Furthermore, the conveyor roller has three grooves, and the three conveyor belts are correspondingly arranged in the grooves.
[0014] Furthermore, a sludge collection box is provided on the lower side of the upper end of the conveying mechanism. When the screen moves the debris to the position of the upper conveying roller, the debris is flipped over the upper conveying roller by the screen and falls into the sludge collection box under the action of gravity.
[0015] Furthermore, two air collecting plates are installed at the upper end of the middle area. The positions of the two air collecting plates correspond to the positions of the water passage gaps. The air collecting plates extend downward from the water passage gaps and have air cavities inside. Air outlets communicating with the air cavities are also provided on both sides of the air collecting plates. A row of air outlets is provided on both sides of each air collecting plate. This row of air outlets is parallel to the conveyor belt and is located at the end face of the conveyor belt.
[0016] The air collecting plate is connected to an air inlet mechanism, which injects air into the air cavity. The airflow is then discharged from the air outlets on both sides of the air collecting plate, so that the airflow is sprayed onto the lower end face of the conveyor belt in a horizontal and parallel manner.
[0017] Furthermore, the air collecting plate is located in the upper area of the sludge collection box, and the airflow from the air collecting plate causes the debris blown off the lower end of the conveyor belt to fall into the sludge collection box.
[0018] Furthermore, the height of the air collecting plate is the same as the height of the grille, and the airflow blown from both sides of the air collecting plate also blows onto the grille accordingly.
[0019] Beneficial effects: The present invention has the following beneficial effects:
[0020] 1) This invention uses a rigid belt as the conveyor belt, which can remove small particles of debris. The conveyor belt is set up as an assembly structure, and drainage is carried out by using the water passage gap between adjacent conveyor belts. This does not affect the debris removal and drainage of the conveyor belt, and effectively improves the cleaning effect.
[0021] 2) In this invention, sprockets, chains and cutting blades are set up in the water passage gap. The cutting blades are set in the water passage gap. The cutting blades can cut the debris, reduce the volume of the debris and the entanglement of the debris, and improve the decontamination efficiency.
[0022] 3) In this invention, an air collecting plate is also installed using the water passage gap. The air collecting plate is set inside the water passage gap and the air outlet is set to face the lower end face of the conveyor belt, which can effectively clean up the debris on the conveyor belt and increase the decontamination efficiency.
[0023] 4) The air collecting plate in this invention is different from the prior art. The air outlet on the air collecting plate blows horizontally toward the conveyor belt, rather than perpendicular to the air collecting plate, so it can effectively clean up debris. Attached Figure Description
[0024] Figure 1 This is a structural diagram of the present invention;
[0025] Figure 2 for Figure 1 Sectional view of AA;
[0026] Figure 3 This is a diagram showing the installation location of the air collecting plate in this invention;
[0027] Figure 4 for Figure 3 View from direction B;
[0028] Figure 5 This is a structural diagram of the conveyor roller in this invention;
[0029] Among them, there are: conveyor roller 1; conveyor belt 2; water passage gap 3; grid 4; middle area 5; sprocket 6; chain 7; cutting blade 8; first drive motor 9; second drive motor 10; groove 11; sludge collection box 12; air collection plate 13; air cavity 14; air outlet 15; and air inlet mechanism 16. Detailed Implementation
[0030] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. These embodiments are implemented based on the technical solutions of the present invention, and it should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.
[0031] like Figure 1 As shown, an assembled stepped bar screen cleaning machine includes an obliquely arranged conveying mechanism. The conveying mechanism includes two upper and lower conveying rollers 1, and three assembled conveying belts 2 are correspondingly arranged between the upper and lower conveying rollers 1. The three conveying belts 2 have the same width, and all three conveying belts 2 are rigid belts. Two water passage gaps 3 are formed between the three conveying belts 2. The three conveying belts 2 move synchronously with the upper and lower conveying rollers 1.
[0032] Furthermore, each of the three conveyor belts 2 is equipped with a stepped grid 4. The grids 4 on the three conveyor belts 2 are positioned correspondingly, and the spacing between the grids 4 on the same conveyor belt 2 is the same. The area enclosed by the two upper and lower conveyor rollers 1 and the conveyor belts 2 is set as the middle area 5. Two sets of sprockets 6 are also installed at the upper end of the middle area 5. Each set of sprockets 6 is equipped with two upper and lower wheel bodies. The tilting direction of the two sets of sprockets 6 is consistent with the tilting direction of the two conveyor rollers 1, and the position of the two sets of sprockets 6 corresponds to the position of the two water passage gaps 3.
[0033] like Figure 2 As shown, both sets of sprockets 6 are equipped with chains 7, and the chains 7 are located within the water passage gap 3. Each chain 7 is also equipped with a cutting blade 8, which extends upward from within the water passage gap 3. The conveyor belt 2 moves upward under the action of the conveyor roller 1, and the impurities in the water are carried away and separated by the grid 4. Excess water is discharged from the water passage gap 3. When the impurities are carried away to the upper position, the chain 7 moves in the opposite direction and cuts the impurities within the water passage gap 3 through the cutting blade 8.
[0034] A first drive motor 9 is installed on the conveyor roller 1, and two sets of sprockets 6 are installed as one unit through a shaft. A second drive motor 10 is installed on the shaft, which controls the rotation direction of the first drive motor 9 and the second drive motor 10 respectively, so that the rotation direction of the chain 7 is opposite to or the same as the rotation direction of the conveyor belt 2.
[0035] like Figure 5 As shown, the conveyor roller 1 has three grooves 11, and the three conveyor belts 2 are respectively arranged in the grooves 11.
[0036] A sludge collection box 12 is also provided on the lower side of the upper end of the conveying mechanism. When the screen 4 moves the debris to the position of the upper conveying roller 1, the debris will fall into the sludge collection box 12 under the action of gravity after it flips over the upper conveying roller 1 with the screen 4.
[0037] like Figure 3 and Figure 4As shown, two air collecting plates 13 are installed at the upper end of the middle area 5. The positions of the two air collecting plates 13 correspond to the positions of the water passage gap 3. The air collecting plates 13 extend downward from the water passage gap 3, and an air cavity 14 is provided inside the air collecting plates 13. Air outlets 15 communicating with the air cavity 14 are provided on both sides of the air collecting plates 13. There is a row of air outlets 15 on both sides of each air collecting plate 13. This row of air outlets 15 is arranged parallel to the conveyor belt 2, and the air outlets 15 are located at the end face of the conveyor belt 2.
[0038] An air intake mechanism 16 is connected to the outside of the air collecting plate 13. The air intake mechanism 16 injects air into the air cavity 14, and the airflow is discharged from the air outlets 15 on both sides of the air collecting plate 13, so that the airflow is sprayed on the lower end face of the conveyor belt 2, and the airflow is sprayed horizontally and parallel to the lower end face of the conveyor belt 2.
[0039] The air collecting plate 13 is located in the upper area of the sludge collection box 12. The airflow from the air collecting plate 13 causes the debris blown off the lower end of the conveyor belt 2 to fall into the sludge collection box 12.
[0040] The height of the air collecting plate 13 is the same as the height of the grille 4, and the airflow blown out from both sides of the air collecting plate 13 also blows onto the grille 4.
[0041] The specific working principle and process of this invention are as follows: First, the conveyor belt in this invention is a rigid belt structure, rather than the mesh structure commonly used in the prior art. The advantage of the mesh conveyor belt in the prior art is that it can filter water better, and the water can be discharged directly from the mesh of the conveyor belt. However, it may also cause a lot of small or medium-sized particles of debris to be discharged, resulting in poor decontamination effect.
[0042] The technical solution of this invention uses a rigid belt structure without any mesh. Furthermore, the invention sets up the entire conveyor belt as three assembled belt structures. Importantly, two water-passing gaps are set between the three conveyor belts, and grids are installed on each of the three conveyor belts. Thus, through the cooperation of the three assembled conveyor belts and the grids, larger debris and small particles in the water can be separated. Simultaneously, the water carried up can be discharged through the water-passing gaps, without affecting the separation of debris or the drainage of the water.
[0043] The water-passing gap in this invention serves two purposes: firstly, it facilitates drainage, and secondly, it has other uses. Because the invention uses a modular conveyor belt system, water-passing gaps are formed between the belts. Two sets of sprockets are also located at the upper end of the invention, with chains mounted on the sprockets. Cutting blades are mounted on the chains, and the cutting blades are positioned within the water-passing gaps, extending out from within the gaps. Figure 2As shown, three conveyor belts are set up to transport items upwards via drive rollers, while the chain transports items downwards. When the debris on the three conveyor belts is transported upwards, it will be cut by the cutting blades in the water-passing gap when it passes the position of the cutting blades. For example, some cloth, branches, leaves and other debris can be cut accordingly to prevent them from not falling due to their large size or entanglement.
[0044] The cut debris will continue to be conveyed forward by the conveyor belt, then flip over the upper conveyor roller and fall into the collection box below, effectively improving the cleaning effect and efficiency.
[0045] Furthermore, if debris on the conveyor belt, even after being cut by the cutting blades, still cannot effectively fall into the collection box below, this invention also includes an air collecting plate. The air collecting plate contains an air chamber. Importantly, in this invention, the air collecting plate is also located within the water passage gap. A row of air outlets parallel to the conveyor belt is provided on both sides of the air collecting plate. The air outlets are positioned on both sides of the air collecting plate, and the direction of airflow is directed towards the lower end of the conveyor belt. Figure 3 and Figure 4 As shown, when the conveyor belt is conveying, when the debris that has not fallen off the conveyor belt is moved to the position of the air collecting plate, the airflow in the air collecting plate blows horizontally and parallel to the end face of the conveyor belt from both sides. Since the airflow is blowing horizontally from the side, rather than perpendicular to the conveyor belt, it can effectively clean up the debris on the conveyor belt. The overall structure is very ingenious and reasonable.
[0046] The above-described specific embodiments are merely preferred embodiments of the present invention and are not intended to limit the implementation of the present invention or the scope of the claims. All equivalent changes and modifications made in accordance with the scope of patent protection of the present invention should be included within the scope of the present invention patent application.
Claims
1. A modular stepped bar screen cleaning machine, characterized in that: The system includes an inclined conveying mechanism, which includes two upper and lower conveying rollers (1), and three assembled conveyor belts (2) are arranged between the upper and lower conveying rollers (1). The three conveyor belts (2) have the same width, and all three conveyor belts (2) are rigid belts. Two water passage gaps (3) are formed between the three conveyor belts (2). The three conveyor belts (2) move synchronously with the upper and lower conveying rollers (1). Furthermore, stepped grids (4) are installed on all three conveyor belts (2). The grids (4) on the three conveyor belts (2) are positioned correspondingly, and the spacing of the grids (4) on the same conveyor belt (2) is the same. The area enclosed by the two upper and lower conveyor rollers (1) and the conveyor belts (2) is set as the middle area (5). Two sets of sprockets (6) are installed at the upper end of the middle area (5). Each set of sprockets (6) is provided with two upper and lower wheel bodies. The tilting direction of the two sets of sprockets (6) is consistent with the tilting direction of the two conveyor rollers (1), and the position of the two sets of sprockets (6) corresponds to the position of the two water passage gaps (3). Both sets of sprockets (6) are equipped with chains (7), and the chains (7) are located in the water passage gap (3). Each chain (7) is also equipped with a cutting blade (8), which extends upward from the water passage gap (3). The conveyor belt (2) moves upward under the action of the conveyor roller (1), and the impurities in the water are carried away and separated by the grid (4). Excess water is discharged from the water passage gap (3). When the impurities are carried away to the upper position, the chain (7) moves in the opposite direction and the cutting blade (8) cuts the impurities in the water passage gap (3).
2. The assembled stepped bar screen cleaning machine according to claim 1, characterized in that: The conveyor roller (1) is equipped with a first drive motor (9), and two sets of sprockets (6) are installed together by a shaft. A second drive motor (10) is installed on the shaft. The rotation direction of the first drive motor (9) and the second drive motor (10) is controlled accordingly, so that the rotation direction of the chain (7) is opposite to or the same as the rotation direction of the conveyor belt (2).
3. The assembled stepped bar screen cleaning machine according to claim 1, characterized in that: The conveyor roller (1) has three grooves (11) and three conveyor belts (2) are respectively arranged in the grooves (11).
4. The assembled stepped bar screen cleaning machine according to claim 1, characterized in that: A sludge collection box (12) is also provided on the lower side of the upper end of the conveying mechanism. When the grid (4) moves the debris to the position of the upper conveying roller (1), the debris will fall into the sludge collection box (12) under the action of gravity after it flips over the upper conveying roller (1) with the grid (4).
5. The assembled stepped bar screen cleaning machine according to claim 4, characterized in that: Two air collecting plates (13) are installed at the upper end of the middle area (5). The positions of the two air collecting plates (13) correspond to the positions of the water passage gap (3). The air collecting plates (13) extend downward from the water passage gap (3), and an air cavity (14) is provided inside the air collecting plates (13). Air outlets (15) communicating with the air cavity (14) are provided on both sides of the air collecting plates (13). A row of air outlets (15) is provided on both sides of each air collecting plate (13). This row of air outlets (15) is parallel to the conveyor belt (2), and the air outlets (15) are located at the end face of the conveyor belt (2). The air collecting plate (13) is connected to an air inlet mechanism (16). The air inlet mechanism (16) injects air into the air cavity (14), and the airflow is discharged from the air outlets (15) on both sides of the air collecting plate (13), so that the airflow is sprayed on the lower end face of the conveyor belt (2) and the airflow is sprayed horizontally and parallel to the lower end face of the conveyor belt (2).
6. The assembled stepped bar screen cleaning machine according to claim 5, characterized in that: The air collecting plate (13) is located in the upper area of the sludge collection box (12). The airflow of the air collecting plate (13) causes the debris blown off the lower end of the conveyor belt (2) to fall into the sludge collection box (12).
7. The assembled stepped bar screen cleaning machine according to claim 5, characterized in that: The height of the air collecting plate (13) is the same as the height of the grille (4), and the airflow blown out from both sides of the air collecting plate (13) also blows onto the grille (4).
Citation Information
Patent Citations
Grille decontamination machine
CN111704181A
Grille cleaner
CN118954661A
Rotary grillage machine
CN211056740U
Stepped sewage grid
CN215975010U