Rural domestic sewage treatment equipment

Abstract

This utility model relates to the field of environmental protection equipment technology, and in particular to rural domestic sewage treatment equipment. It includes a frame with a sewage inlet at the upper left side and a sewage outlet at the lower left side. A motor is mounted on the front of the frame. Two conveyor rollers are rotatably connected inside the frame, and a transmission belt is mounted on both rollers. One of the conveyor rollers is connected to the output shaft of the motor. Several filter plates are arranged perpendicular to the transmission belt and are slidably connected to the transmission belt. Several first elastic elements are provided at the connection end between the transmission belt and the filter plates, with one end of each element connected to the transmission belt and the other end connected to the filter plate. A waste gate is slidably connected to the right end of the frame. Shaking components for shaking the filter plates are provided on the front and rear sides of the frame. The transmission belt circulates and drives the filter plates, causing them to automatically transfer to a cleaning station after intercepting solid residue, thus achieving continuous renewal of the filter surface and preventing long-term clogging of individual filter plates.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection equipment technology, and in particular to rural domestic sewage treatment equipment. Background Technology

[0002] With the deepening of the rural revitalization strategy, my country has achieved remarkable results in improving the rural living environment. However, domestic sewage treatment remains a weak link in infrastructure construction. Rural domestic sewage mainly originates from kitchen washing, bathing, laundry, and toilet discharge, and is characterized by its highly decentralized nature, large fluctuations in water volume, and high concentration of organic matter. Currently, most rural areas lack centralized sewage treatment systems, and sewage is often discharged directly into ditches or natural water bodies in front of and behind houses without treatment. This leads to the accumulation of nitrogen and phosphorus, the spread of pathogens, and continuous pollution of soil, groundwater, and the ecological environment of watersheds. There is an urgent need to develop efficient decentralized treatment technologies adapted to rural scenarios.

[0003] In actual discharge processes, rural domestic sewage commonly involves the dumping of mixed solid and liquid waste. Residents often pour kitchen scraps, vegetable leaves, fruit peels, and other solid waste into drainage pipes along with washing wastewater, resulting in sewage containing a large amount of suspended solids and organic solid waste. Existing treatment equipment usually requires the installation of screens or filters in the primary stage for physical interception, but the randomness and complexity of solid waste cause frequent clogging of the filtration system, especially when large pieces of food scraps or foreign objects such as plastic bags enter, causing a sharp drop in filtration efficiency.

[0004] While current mainstream small-scale processing equipment possesses basic solid-liquid separation capabilities, it faces core bottlenecks such as easily clogged filters and high maintenance costs. Due to the lack of effective pre-sorting or crushing mechanisms, filters are frequently and rapidly covered by clumps of large debris such as hair, bone fragments, and vegetable stems and leaves. This not only reduces water flow but also forces the system to shut down for manual cleaning. Frequent clogging significantly increases the operational burden, and the cleaning process poses hygiene and safety hazards. Utility Model Content

[0005] To overcome the drawback of requiring manual cleaning when the filter screen gets clogged, this utility model provides a rural domestic sewage treatment device.

[0006] A rural domestic sewage treatment device includes a frame with a sewage inlet at the upper left end and a sewage outlet at the lower left end. A motor is installed at the front of the frame. Two conveyor rollers are rotatably connected inside the frame, and a transmission belt is mounted on both conveyor rollers. One of the conveyor rollers is connected to the output shaft of the motor. Several filter plates are arranged perpendicular to the transmission belt and are slidably connected to the transmission belt. Several first elastic elements are provided at the connection end between the transmission belt and the filter plates. One end of each first elastic element is connected to the transmission belt, and the other end is connected to the filter plate. A waste gate is slidably connected to the right end of the frame. Shaking components for shaking the filter plates are provided on the front and rear sides of the frame.

[0007] As a preferred technical solution of this utility model, the vibration component includes a vibration guide rail. The vibration guide rail is connected to both the front and rear sides of the frame. The filter plate is rotatably connected to the front and rear sides of the end away from the transmission belt. A torsion spring is sleeved on one end of the transmission member inserted into the filter plate. One end of the torsion spring is connected to the filter plate, and the other end is connected to the transmission member. The movement trajectory of the vibration guide rail coincides with that of the transmission member, and the middle of the vibration guide rail is continuously curved.

[0008] As a preferred technical solution of this utility model, it also includes a pin, a limiting rod connected to the right side of the frame, the waste door being slidably connected to the limiting rod, a second elastic member being sleeved on the limiting rod, the top of the second elastic member being connected to the frame, the bottom being connected to the waste door, and the pin passing through the waste door and being slidably connected to the right side of the frame.

[0009] As a preferred embodiment of this utility model, the bottom of the frame is connected to several adjustable feet.

[0010] As a preferred embodiment of this utility model, a medicine inlet is provided on the top of the frame.

[0011] As a preferred embodiment of this utility model, a transparent observation window is provided on the front side of the frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. The filter plates are moved by the transmission belt, so that after intercepting solid residues, the filter plates are automatically transferred to the cleaning station, realizing the continuous renewal of the filter surface and thus avoiding long-term clogging of a single filter plate.

[0014] 2. By using the curved surface of the vibration guide rail and the transmission component, the filter plate is forced to slide laterally when it moves downward, triggering the torsion spring to store and release energy. This, combined with the reciprocating extension and retraction of the first elastic element, generates high-frequency vibration, achieving complete removal of the residue embedded in the filter holes, thereby eliminating the need for manual cleaning of the filter screen. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a three-dimensional structural diagram of the conveyor roller and waste gate of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the vibration guide rail, transmission component, and conveying roller of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the filter plate, the first elastic element, and the torsion spring of this utility model.

[0019] The markings in the diagram are as follows: 1-Frame, 2-Sewage inlet, 3-Sewage outlet, 4-Motor, 5-Conveying roller, 6-Drive belt, 7-Filter plate, 701-First elastic element, 8-Vibrating guide rail, 9-Transmission element, 10-Torsion spring, 11-Waste gate, 12-Second elastic element, 13-Pin, 14-Limit rod, 15-Adjusting foot, 16-Drug port, 17-Observation window. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the scope of protection and application of the present invention.

[0021] Example: Rural domestic sewage treatment equipment, such as Figures 1-4 As shown, the system includes a frame 1, a motor 4, conveyor rollers 5, a transmission belt 6, filter plates 7, first elastic elements 701, a waste gate 11, and a shaking assembly. A wastewater inlet 2 is located at the upper left end of the frame 1, and a wastewater outlet 3 is located at the lower left end of the frame 1. A motor 4 is installed at the front of the frame 1. Two conveyor rollers 5 are rotatably connected inside the frame 1, and the transmission belt 6 is mounted on both conveyor rollers 5. One of the conveyor rollers 5 is connected to the output shaft of the motor 4. Several filter plates 7 are arranged perpendicular to the transmission belt 6, and the filter plates 7 are slidably connected to the transmission belt 6. Wastewater is injected at a high position through the inlet 2 and discharged at a low position through the outlet 3. Gravity drives the wastewater to penetrate the gaps in the filter plates 7, and solid residues are intercepted by the filter plates 7 and move with the belt. Several first elastic elements 701 are provided at the connection end between the transmission belt 6 and the filter plates 7. One end of the first elastic element 701 is welded inside the transmission belt 6, and the other end is welded to the filter plates 7. A waste gate 11 is slidably connected to the right end of the frame 1. Shaking assemblies for shaking the filter plates 7 are provided on the front and rear sides inside the frame 1.

[0022] like Figure 2 and Figure 3As shown, the vibration assembly includes a vibration guide rail 8, a transmission component 9, and a torsion spring 10. Vibration guide rails 8 are welded to both the front and rear sides of the frame 1. The transmission component 9 is rotatably connected to the front and rear sides of the end of the filter plate 7 away from the transmission belt 6. The transmission component 9 is inserted into one end of the filter plate 7 and fitted with a torsion spring 10. One end of the torsion spring 10 is welded to the filter plate 7, and the other end is welded to the transmission component 9. The movement trajectories of the vibration guide rail 8 and the transmission component 9 coincide, and the middle of the vibration guide rail 8 is continuously curved. When the filter plate 7 reaches the top of the frame 1, the transmission component 9 is embedded in the curved vibration guide rail 8, which, together with the first elastic element 701, generates high-frequency vibration.

[0023] like Figure 2 As shown, it also includes a second elastic element 12, a pin 13, and a limiting rod 14. The limiting rod 14 is welded to the right side of the frame 1. The waste door 11 is slidably connected to the limiting rod 14. The second elastic element 12 is sleeved on the limiting rod 14. The top of the second elastic element 12 is welded to the frame 1, and the bottom is welded to the waste door 11. The pin 13 passes through the waste door 11 and is slidably connected to the right side of the frame 1. The pin 13 locks to ensure that the waste door 11 is tightly fitted to the frame 1. After the pin 13 is released, the elastic element automatically opens the waste door 11.

[0024] like Figure 2 As shown, it also includes adjusting feet 15. Several adjusting feet 15 are installed at the bottom of the frame 1 to ensure that the transmission belt 6 runs horizontally and to prevent the filter plate 7 from being worn unevenly due to the tilt of the equipment.

[0025] like Figure 1 and Figure 2 As shown, the top of the frame 1 is equipped with a chemical inlet 16. The single inlet serves both chemical dosing and equipment self-cleaning, reducing pipeline complexity.

[0026] like Figure 1 As shown, it also includes an observation window 17. A transparent observation window 17 is provided on the front side of the frame 1 to monitor the thickness of the residue accumulation on the filter plate 7 and the water flow status in real time.

[0027] Workers inject untreated wastewater into the frame 1 through the wastewater inlet 2. The motor 4 drives the conveyor roller 5 to rotate, which in turn drives the transmission belt 6 to rotate clockwise. The drop between the wastewater inlet 2 and the wastewater outlet 3 is greater than the gap between the two filter plates 7, so that one filter plate 7 is always in contact with the inner wall on the left side of the frame 1. The filtered clean water is discharged through the wastewater outlet 3 and enters the subsequent treatment process, while the solid residue is filtered by the filter plate 7. The filter plate 7 moves with the transmission belt 6 and moves upward along the inside of the frame 1. When the filter plate 7 moves to the top, the transmission components 9 at both ends of the filter plate 7 connect with the vibrating guide rail 8. As the filter plate 7 flips backward, the filtered solids on the filter plate 7 fall downward and detach from the filter plate 7. During the downward movement of the filter plate 7, the transmission component 9 moves along the vibrating guide rail 8. The curved vibrating guide rail 8 pushes the transmission component 9 to rotate and stretches the torsion spring 10. At the same time, the crest of the vibrating guide rail 8... The distance of the trough is greater than the range of rotation adjustment of the transmission component 9, which in turn will pull the transmission component 9 to move left and right. The transmission component 9 drives the filter plate 7 to slide left and right. During the sliding process of the filter plate 7 in the transmission belt 6, it repeatedly stretches and compresses the first elastic element 701, completely shaking off the solid residue on the filter plate 7 and letting it fall into the waste gate 11. When the filter plate 7 moves to the bottom, the transmission component 9 disengages from the vibrating guide rail 8, and at the same time, the solid residue is dumped, and continuous filtration is carried out. After filtering for a period of time, after pulling out the pin 13, the second elastic element 12 releases the stored energy, pulling the waste gate 11 to slide up and open along the limit rod 14 to clean the filtered solid residue. After cleaning, the waste gate 11 is pushed down, stretching the second elastic element 12 and pressing the waste gate 11 down to the sealing surface of the frame 1. After stretching the second elastic element 12 to generate a pre-tightening force, the pin 13 is inserted to lock and fix the position of the waste gate 11.

[0028] During wastewater treatment, flocculant is added through chemical inlet 16; when the machine is shut down, it is switched to clean water rinsing mode to clean the frame 1 and filter plate 7.

[0029] The filtration status can be observed through the observation window 17. If the wastewater flow rate is large and the load-bearing capacity of the filter plate 7 is limited, the inflow rate of the wastewater inlet 2 can be reduced to lower the filtration load. When installing the frame 1, the individual adjusting feet 15 can be adjusted to compensate for the impact of uneven ground on the equipment.

[0030] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A rural domestic wastewater treatment apparatus characterised in that: The machine includes a frame (1), with a sewage inlet (2) on the upper left side and a sewage outlet (3) on the lower left side. A motor (4) is installed on the front side of the frame (1). Two conveyor rollers (5) are rotatably connected inside the frame (1). The two conveyor rollers (5) are fitted together with a transmission belt (6). One of the conveyor rollers (5) is connected to the output shaft of the motor (4). Several filter plates (7) are arranged perpendicular to the transmission belt (6). The filter plates (7) are slidably connected to the transmission belt (6). Several first elastic elements (701) are provided at the connection end between the transmission belt (6) and the filter plates (7). One end of the first elastic element (701) is connected to the transmission belt (6), and the other end is connected to the filter plate (7). A waste gate (11) is slidably connected to the right side of the frame (1). Shaking components for shaking the filter plates (7) are provided on the front and rear sides inside the frame (1).

2. The rural domestic wastewater treatment apparatus according to claim 1, characterized by: The vibration assembly includes a vibration guide rail (8), which is connected to both the front and rear sides of the frame (1). The filter plate (7) is rotatably connected to the front and rear sides of the end away from the transmission belt (6). A torsion spring (10) is sleeved on one end of the transmission member (9) inserted into the filter plate (7). One end of the torsion spring (10) is connected to the filter plate (7), and the other end is connected to the transmission member (9). The movement trajectory of the vibration guide rail (8) coincides with that of the transmission member (9), and the middle part of the vibration guide rail (8) is continuously curved.

3. The rural domestic wastewater treatment apparatus according to claim 2, characterized by: It also includes a pin (13), a limit rod (14) connected to the right side of the frame (1), the waste door (11) is slidably connected to the limit rod (14), a second elastic element (12) is sleeved on the limit rod (14), the top of the second elastic element (12) is connected to the frame (1), the bottom is connected to the waste door (11), and the pin (13) passes through the waste door (11) and is slidably connected to the right side of the frame (1).

4. The rural domestic wastewater treatment apparatus according to claim 1, characterized by: The bottom of the frame (1) is connected to several adjustable feet (15).

5. The rural domestic wastewater treatment apparatus according to claim 1, characterized by: The top of the frame (1) is provided with a medicine port (16).

6. The rural domestic wastewater treatment apparatus as claimed in claim 1, characterized in that: The frame (1) has a transparent observation window (17) on the front side.

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