A filtering device for a suction pipe of a sewage suction truck

Abstract

The utility model relates to a sewage suction pipe filtering technology field, and disclose a kind of filtering device for sewage suction pipe of sewage suction truck, including filter box and fixedly installed in the filter box lateral wall suction pipe, the one end of filter box is fixedly installed with operating box, the filter box is provided with the filtering assembly of filtering to suction pipe, the filtering assembly includes first chamber being opened in filter box, first chamber is fixedly installed with arc filter screen, under the cooperation of filter plate and arc filter screen, stone and larger sundries are isolated, avoid stone into sewage pump, carry out blockage to sewage pump, cause sewage pump to appear short-circuit phenomenon, under the cooperation of water flow, waterwheel, rotating shaft, connecting rod and cleaning rod, the silt adsorbed on arc filter screen is cleaned down, under the action of special-shaped plate, cleaning rod, sliding groove and spring, silt is pushed to silt collection box, not only can improve sewage suction speed but also carry out silt collection, subsequent centralized cleaning is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of sewage suction pipe filtration technology, specifically a filtration device for sewage suction pipes of sewage suction trucks. Background Technology

[0002] Vacuum trucks are currently used to collect, transfer, clean, and transport sludge and sewage, preventing secondary pollution. They are a new type of sanitation vehicle. Vacuum trucks are self-priming and self-discharging, with fast working speed, large capacity, and convenient transportation. They are suitable for collecting and transporting liquid substances such as feces, mud, and crude oil. Vacuum trucks use domestically leading vacuum pumps with strong suction and long suction range, making them particularly suitable for sucking, loading, and unloading sludge in sewers. They can especially suck up larger objects such as sewer mud, silt, stones, and bricks.

[0003] In the existing technology, when a vacuum truck sucks up sewage, the suction pipe of the vacuum truck often gets clogged with debris from the sewage, reducing the amount of sewage sucked up. This results in low suction efficiency and the need for frequent cleaning of the sewage debris inside the suction pipe.

[0004] Therefore, we propose a filter device for the suction pipe of a vacuum truck to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a filter device for the suction pipe of a sewage suction truck, so as to solve the problem mentioned in the background art that when a sewage suction truck sucks in sewage, the suction pipe of the sewage suction truck often gets clogged by debris in the sewage, which reduces the amount of sewage sucked in, resulting in low sewage suction efficiency and the need to frequently clean the sewage debris inside the suction pipe.

[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a filter box and a suction pipe fixedly installed on the side wall of the filter box. An operation box is fixedly installed at one end of the filter box. A filter assembly for filtering the suction pipe is provided on the filter box. The filter assembly includes a first chamber opened on the filter box, on which an arc-shaped filter screen is fixedly installed. A second chamber is opened on the operation box, on which a filter plate is fixedly installed. A cleaning assembly for cleaning the arc-shaped filter screen is provided on the second chamber.

[0007] Preferably, the cleaning assembly includes a rotating shaft rotatably mounted on the second chamber, a waterwheel fixedly mounted on the axial side wall of the rotating shaft, two connecting rods fixedly mounted on the axial side wall of the rotating shaft, a cleaning rod fixedly mounted at one end of the two connecting rods, and a pushing assembly for pushing dust is provided on the second chamber.

[0008] Preferably, the pushing assembly includes a sludge collection box fixedly installed at the lower end of the filter box, two sliding grooves are opened on the second chamber, a shaped plate is slidably installed on the two sliding grooves, a spring is provided between the shaped plate and the sliding groove, and a striking assembly is provided on the filter plate to shake off small stones on the filter plate.

[0009] Preferably, the striking assembly includes four fixed plates fixedly mounted on the filter plate, wherein a rotating shaft is rotatably mounted between two of the fixed plates, an arc-shaped rod is fixedly mounted on the axial side wall of the rotating shaft, a torsion spring is provided between the arc-shaped rod and the fixed plate, and a quick-release assembly is provided on the operating box.

[0010] Preferably, the quick-release assembly includes four screws slidably mounted on the operating box, a stone collection box is slidably mounted on the axial sidewalls of the four screws, a sealing ring is fixedly mounted on the upper end of the stone collection box, a nut is threaded onto the axial sidewalls of the screws, and a third chamber is provided on the stone collection box.

[0011] Preferably, the rotation path of the sweeping rod is consistent with the curvature of the arc-shaped filter screen.

[0012] Preferably, the irregularly shaped plate is within the rotation radius of the sweeping rod.

[0013] Preferably, the sweeping rod and the arc-shaped rod are on the same vertical plane.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. With the cooperation of the filter plate and the arc-shaped filter screen, stones and larger debris are separated, preventing stones from entering the sewage pump and clogging it, which could cause a short circuit. With the cooperation of water flow, water wheel, rotating shaft, connecting rod and cleaning rod, the sludge adsorbed on the arc-shaped filter screen is swept off. The sludge is pushed to the sludge collection box by the action of the shaped plate, cleaning rod, slide and spring. This not only improves the sewage suction speed but also collects the sludge for convenient subsequent centralized cleaning.

[0016] 2. Under the action of the waterwheel, sweeping rod, arc rod, filter plate, and torsion spring, the arc rod strikes the filter plate, causing small stones to fall down and enter the third chamber for centralized collection. This prevents small stones from being sucked into the sewage pump and causing damage to it. After the sewage suction is completed, unscrew the nut and remove the screw. At this time, the stone collection box can be removed and disposed of centrally to avoid the stone collection box being filled with stones, causing blockage of the control box and indirectly reducing the sewage suction speed. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the overall structure and the filter assembly of this utility model;

[0018] Figure 2 This is a cross-sectional view of the cleaning component of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the pushing component of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the striking component of this utility model;

[0021] Figure 5 For the present utility model Figure 4 Enlarged view of point A;

[0022] Figure 6 This is a cross-sectional view of the quick-release component of this utility model.

[0023] In the diagram: 1. Filter box; 11. Suction pipe; 12. Control box; 2. Filter assembly; 21. First chamber; 22. Arc-shaped filter screen; 23. Second chamber; 24. Filter plate; 3. Cleaning assembly; 31. Rotating shaft; 32. Water wheel; 33. Connecting rod; 34. Cleaning rod; 4. Pushing assembly; 41. Sludge collection box; 42. Slide; 43. Irregular plate; 44. Spring; 5. Impact assembly; 51. Fixing plate; 52. Rotating shaft; 53. Arc-shaped rod; 54. Torsion spring; 6. Quick release assembly; 61. Screw; 62. Stone collection box; 63. Sealing ring; 64. Nut; 65. Third chamber. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: Please refer to Figures 1-3 The system includes a filter box 1 and a suction pipe 11 fixedly installed on the side wall of the filter box 1. The filter box 1 and the suction pipe 11 are connected. An operation box 12 is fixedly installed at one end of the filter box 1. The filter box 1 and the operation box 12 are connected. The operation box 12 is connected to the suction pipe 11. The filter box 1 is provided with a filter assembly 2 for filtering the suction pipe 11. The filter assembly 2 includes a first chamber 21 opened on the filter box 1. An arc-shaped filter screen 22 is fixedly installed on the first chamber 21. A second chamber 23 is opened on the operation box 12. A filter plate 24 is fixedly installed on the second chamber 23. A cleaning assembly 3 for cleaning the arc-shaped filter screen 22 is provided on the second chamber 23.

[0026] The cleaning assembly 3 includes a rotating shaft 31 rotatably mounted on the second chamber 23, a waterwheel 32 fixedly mounted on the axial side wall of the rotating shaft 31, two connecting rods 33 fixedly mounted on the axial side wall of the rotating shaft 31, a cleaning rod 34 fixedly mounted on one end of the two connecting rods 33, and a pushing assembly 4 for pushing dust is provided on the second chamber 23.

[0027] The pushing assembly 4 includes a sludge collection box 41 fixedly installed at the lower end of the filter box 1. The sludge collection box 41 is connected to the operation box 12. Two sliding grooves 42 are opened on the second chamber 23. A shaped plate 43 is slidably installed on the two sliding grooves 42. A spring 44 is provided between the shaped plate 43 and the sliding grooves 42. A striking assembly 5 is provided on the filter plate 24 to shake off small stones on the filter plate 24.

[0028] The rotation path of the cleaning rod 34 is consistent with the curvature of the arc-shaped filter screen 22, which can clean the dust off the arc-shaped filter screen 22.

[0029] Within the rotation radius of the cleaning rod 34, the irregularly shaped plate 43 can be moved by the cleaning rod 34.

[0030] In this embodiment: the filter plate 24 separates stones and larger debris. Because the filter plate 24 has a certain slope, the stones can fall into the third chamber 65, thus preventing stones from entering the sewage pump and clogging it, causing a short circuit. Subsequently, the arc-shaped filter screen 22 filters some silt. However, over a long period of time, a large amount of silt will accumulate on the arc-shaped filter screen 22, affecting the suction speed. At this time, the water flow drives the waterwheel 32 to rotate, thereby rotating the rotating shaft 31, which in turn drives the connecting rod 33 and the cleaning rod. When the cleaning rod 34 rotates, it sweeps the sludge adsorbed on the arc-shaped filter screen 22 down and into the groove of the shaped plate 43. When the cleaning rod 34 rotates downward, it can squeeze the shaped plate 43, causing the shaped plate 43 to slide backward through the slide groove 42, so that the sludge slides from the groove on the shaped plate 43 into the second chamber 23. After the force is released, the shaped plate 43 slides forward under the action of the spring 44, pushing the sludge into the sludge collection box 41. This not only improves the suction speed but also collects the sludge, making it convenient for subsequent centralized cleaning.

[0031] Example 2: This example is an improvement on Example 1. For details, please refer to [link / reference]. Figures 4-6 The striking assembly 5 includes four fixed plates 51 fixedly mounted on the filter plate 24. A rotating shaft 52 is rotatably mounted between two fixed plates 51. An arc-shaped rod 53 is fixedly mounted on the axial side wall of the rotating shaft 52. A torsion spring 54 is provided between the arc-shaped rod 53 and the fixed plate 51. A quick-release assembly 6 is provided on the operation box 12.

[0032] The quick-release assembly 6 includes four screws 61 that are slidably mounted on the operating box 12. A stone collection box 62 is slidably mounted on the axial sidewall of the four screws 61. The stone collection box 62 is connected to the operating box 12. A sealing ring 63 is fixedly mounted on the upper end of the stone collection box 62. Nuts 64 are threaded onto the axial sidewall of the screws 61. A third chamber 65 is provided on the stone collection box 62.

[0033] The sweeping rod 34 and the arc-shaped rod 53 are on the same vertical plane. When the sweeping rod 34 rotates, it can squeeze the arc-shaped rod 53.

[0034] In this embodiment: some small stones may get stuck on the filter plate 24. At this time, the water wheel 32 drives the cleaning rod 34 to rotate. Then the cleaning rod 34 will squeeze the arc rod 53, so that one end of the arc rod 53 is away from the filter plate 24. After the force is released, the arc rod 53 strikes the filter plate 24 through the action of the torsion spring 54, causing the small stones to be knocked down and enter the third chamber 65 for centralized collection. This prevents the small stones from being sucked into the sewage pump and causing damage to the sewage pump. After the sewage is sucked up, the nut 64 is unscrewed and the screw 61 is removed. At this time, the stone collection box 62 can be removed and disposed of centrally to avoid the stone collection box 62 being full of stones, causing blockage of the control box 12 and indirectly reducing the sewage suction speed.

[0035] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A filtration device for a vacuum truck suction pipe, comprising a filter box (1) and a suction pipe (11) fixedly installed on the side wall of the filter box (1), wherein an operation box (12) is fixedly installed at one end of the filter box (1), and a filter assembly (2) for filtering the suction pipe (11) is provided on the filter box (1), characterized in that: The filter assembly (2) includes a first chamber (21) opened on the filter box (1), an arc-shaped filter screen (22) is fixedly installed on the first chamber (21), a second chamber (23) is opened on the operation box (12), a filter plate (24) is fixedly installed on the second chamber (23), and a cleaning assembly (3) for cleaning the arc-shaped filter screen (22) is provided on the second chamber (23).

2. The filter device for the suction pipe of a vacuum truck according to claim 1, characterized in that: The cleaning assembly (3) includes a rotating shaft (31) rotatably mounted on the second chamber (23), a waterwheel (32) fixedly mounted on the axial side wall of the rotating shaft (31), two connecting rods (33) fixedly mounted on the axial side wall of the rotating shaft (31), a cleaning rod (34) fixedly mounted on one end of the two connecting rods (33), and a pushing assembly (4) for pushing dust is provided on the second chamber (23).

3. A filter device for a vacuum truck suction pipe according to claim 2, characterized in that: The pushing assembly (4) includes a sludge collection box (41) fixedly installed at the lower end of the filter box (1). Two slides (42) are opened on the second chamber (23). A shaped plate (43) is slidably installed on the two slides (42). A spring (44) is provided between the shaped plate (43) and the slides (42). A striking assembly (5) is provided on the filter plate (24) to shake off small stones on the filter plate (24).

4. A filter device for a vacuum truck suction pipe according to claim 3, characterized in that: The striking assembly (5) includes four fixed plates (51) fixedly mounted on the filter plate (24), wherein a rotating shaft (52) is rotatably mounted between two of the fixed plates (51), an arc-shaped rod (53) is fixedly mounted on the axial side wall of the rotating shaft (52), a torsion spring (54) is provided between the arc-shaped rod (53) and the fixed plate (51), and a quick-release assembly (6) is provided on the operating box (12).

5. A filter device for a vacuum truck suction pipe according to claim 4, characterized in that: The quick-release assembly (6) includes four screws (61) slidably mounted on the operating box (12). A stone collection box (62) is slidably mounted on the axial sidewall of the four screws (61). A sealing ring (63) is fixedly mounted on the upper end of the stone collection box (62). A nut (64) is threaded onto the axial sidewall of the screws (61). A third chamber (65) is provided on the stone collection box (62).

6. A filter device for a vacuum truck suction pipe according to claim 4, characterized in that: The rotation path of the cleaning rod (34) is consistent with the curvature of the arc-shaped filter screen (22).

7. A filter device for a vacuum truck suction pipe according to claim 6, characterized in that: The irregular plate (43) is within the rotation radius of the cleaning rod (34).

8. A filter device for a vacuum truck suction pipe according to claim 7, characterized in that: The sweeping rod (34) and the arc rod (53) are on the same vertical plane.

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