Drainage device for municipal engineering
By designing a drainage device for municipal engineering that includes a fixed frame, a rotary filter element and a float chamber, the problem of having to stop the machine for cleaning when the filter element is clogged is solved. The filter element cleaning does not affect the pump suction, ensuring the continuity and efficiency of the drainage work.
Patent Information
- Application Number
- CN202422800912.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-18
AI Technical Summary
Existing municipal engineering drainage devices need to be shut down for cleaning when debris adheres to the filter element surface, affecting the drainage process.
A drainage device is designed, which includes a pump body, a connecting hose, a hard pipe and a filter mechanism. The filter mechanism consists of a fixed frame, a fixed block, a rotary filter element, a fixed ring and a float chamber. There are filter holes on the outside of the rotary filter element. The float chamber and the support plate are used to keep the filter element effectively submerged at different water levels, making it easy to clean.
The drum filter element can be easily cleaned without affecting the suction work of the pump body, ensuring the continuity and efficiency of the drainage work.
Smart Images

Figure CN223482833U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drainage device technology, specifically a drainage device for municipal engineering. Background Technology
[0002] In the current technology, urban flooding disasters are often seen every summer. At this time, in order to accelerate the drainage of water in low-lying areas of the city, drainage devices for municipal engineering are often needed.
[0003] In existing technologies, drainage devices typically use a high-power pump to draw water, with a filter installed at the head of the suction pipe to prevent larger debris from entering the pump and affecting the drainage process. However, with traditional filter cartridges, when debris such as garbage bags adheres to the filter cartridge surface and needs cleaning, the pump often needs to be shut down first, which can easily delay the drainage process. Therefore, an improved drainage device for municipal engineering is needed to address this issue. Utility Model Content
[0004] The purpose of this utility model is to provide a drainage device for municipal engineering to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a drainage device for municipal engineering, comprising a pump body, a connecting hose fixedly disposed in the middle of the surface of the pump body, a rigid pipe fixedly disposed at the end of the connecting hose away from the pump body, a filter mechanism for filtering impurities disposed on the outside of the rigid pipe, the filter mechanism comprising a fixed frame, a fixed block, a rotating filter element, a fixed ring, and a float cavity, a fixed frame fixedly disposed at one end of the rigid pipe, a fixed block fixedly disposed inside the fixed frame on the side away from the fixed pipe, a rotating filter element movably disposed on the fixed block and the outer surface of the rigid pipe via a bearing, a plurality of fixed rings evenly fixedly disposed on both sides of the surface of the fixed frame, and a float cavity fixedly disposed inside the fixed ring.
[0006] Preferably, support plates are fixedly installed on both sides of the lower end of the fixed frame. When the water level is low, the filter element can be supported on the ground by the support plates.
[0007] Preferably, a water outlet is fixedly provided on one side of the pump body surface. Water sucked into the pump body can be discharged through the water outlet, and the water outlet can also be connected to a pipe so that the water can flow to the target location.
[0008] Preferably, the outer surface of the rotary filter element is provided with a number of filter holes, which allow smaller impurities to enter the interior of the rotary filter element and be sucked away by the pump body, while blocking larger impurities.
[0009] Preferably, a connection interface is fixedly provided at the lower end of the water outlet, through which other pipes can be easily connected.
[0010] Compared with the prior art, the beneficial effects of the present invention are:
[0011] 1. When using this utility model, the lower half of the rotary filter element is submerged in the sewage to be discharged; the upper part of the rotary filter element can be on the water surface. When the rotary filter element needs to be cleaned, simply rotate the rotary filter element continuously to bring the clogged surface to the water surface for cleaning. This will not affect the filtration work of the entire filter element, nor will it affect the pump's suction work, thus ensuring the progress of the entire drainage work.
[0012] 2. This utility model is easy to operate. Simply rotate the rotating drum filter element, and then the staff can observe the surface of the rotating drum filter element. If there are large impurities such as garbage bags or leaves adsorbed on the surface, remove them and collect them. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of a drainage device for municipal engineering according to the present invention;
[0014] Figure 2 This is a cross-sectional view of the overall structure of a drainage device for municipal engineering according to this utility model;
[0015] Figure 3 This is a side view of the overall structure of a drainage device for municipal engineering according to the present invention.
[0016] In the diagram: 1. Pump body; 2. Connecting hose; 3. Rigid pipe; 4. Fixing frame; 5. Fixing block; 6. Rotary filter element; 7. Fixing ring; 8. Float chamber; 9. Support plate; 10. Outlet; 11. Filter hole; 12. Connection interface. Detailed Implementation
[0017] 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.
[0018] Please see Figure 1-3This utility model provides a technical solution: a drainage device for municipal engineering, including a pump body 1. A connecting hose 2 is fixedly installed in the middle of the surface of the pump body 1. A rigid pipe 3 is fixedly installed at the end of the connecting hose 2 away from the pump body 1. A filter mechanism for filtering impurities is installed on the outside of the rigid pipe 3. The filter mechanism includes a fixed frame 4, a fixed block 5, a rotating filter element 6, a fixed ring 7, and a float cavity 8. A fixed frame 4 is fixedly installed at one end of the rigid pipe 3. A fixed block 5 is fixedly installed on the side of the fixed frame 4 away from the fixed pipe. A rotating filter element is movably installed on the outer surface of the fixed block 5 and the rigid pipe 3 through a bearing. A plurality of fixed rings 7 are evenly fixedly installed on both sides of the surface of the fixed frame 4. A float cavity 8 is fixedly installed inside the fixed ring 7.
[0019] The fixed frame 4 has support plates 9 fixedly installed on both sides of its lower end. When the water level is low, the filter element can be supported on the ground by the support plates 9.
[0020] A water outlet 10 is fixedly provided on one side of the surface of the pump body 1. Water sucked into the pump body 1 can be discharged through the water outlet 10. The water outlet 10 can also be connected to a pipe so that the water can flow to the target location.
[0021] The outer surface of the rotary filter element 6 is provided with a plurality of filter holes 11. Smaller impurities can be allowed to enter the interior of the rotary filter element 6 and be sucked away by the pump body 1 through the filter holes 11, while larger impurities can be blocked.
[0022] The lower end of the outlet 10 is fixedly provided with a connection interface 12, which allows for easy connection to other pipes.
[0023] Working principle: When using this device, if the water level is high, the filter mechanism can float on the water surface using the float chamber 8. When the water level is low, it can be supported on the ground using the support plate 9. In this way, regardless of whether the water level is high or low, the lower half of the rotary filter element 6 can be submerged in the sewage to be discharged. The upper end of the rotary filter element 6 can be on the water surface. When the rotary filter element 6 needs to be cleaned, simply rotate the rotary filter element 6 to keep the clogged surface on the water surface for cleaning. This will not affect the filtration work of the entire filter element, nor will it affect the pump body 1's suction work, ensuring the progress of the entire drainage work.
[0024] Then, when draining, the pump body 1 works, and the filtered sewage inside the lower end of the rotary filter element 6 can be sucked away and discharged through the connecting hose 2 and rigid pipe 3;
[0025] Furthermore, the device is easy to operate. Simply rotate the rotating filter element 6, and then the staff can observe the surface of the rotating filter element 6. If there are large impurities such as garbage bags or leaves adsorbed on the surface, remove them and collect them.
[0026] 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.
[0027] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A drainage device for municipal engineering, comprising a pump body (1), characterized in that: A connecting hose (2) is fixedly installed in the middle of the surface of the pump body (1). A rigid tube (3) is fixedly installed at the end of the connecting hose (2) away from the pump body (1). A filter mechanism for filtering impurities is installed on the outside of the rigid tube (3). The filter mechanism includes a fixed frame (4), a fixed block (5), a rotating filter element (6), a fixed ring (7), and a float cavity (8). A fixed frame (4) is fixedly installed at one end of the rigid tube (3). A fixed block (5) is fixedly installed on the side of the fixed frame (4) away from the fixed tube. A rotating filter element is movably installed on the outer surface of the fixed block (5) and the rigid tube (3) through a bearing. Several fixed rings (7) are evenly fixedly installed on both sides of the surface of the fixed frame (4). A float cavity (8) is fixedly installed inside the fixed ring (7).
2. A drainage device for municipal engineering according to claim 1, characterized in that: Support plates (9) are fixedly installed on both sides of the lower end of the fixed frame (4).
3. A drainage device for municipal engineering according to claim 1, characterized in that: A water outlet (10) is fixedly provided on one side of the surface of the pump body (1).
4. A drainage device for municipal engineering according to claim 1, characterized in that: The outer surface of the rotary filter element (6) is provided with several filter holes (11).
5. A drainage device for municipal engineering according to claim 3, characterized in that: A connection interface (12) is fixedly provided at the lower end of the outlet (10).