Drainage device for water supply and drainage project
By introducing anti-odor backflow components and fixing components into the drainage device, the problems of odor backflow and inconvenient disassembly of the filter structure during drainage are solved, achieving the effects of odor prevention and convenient installation and disassembly of the filter plate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZAOZHUANG XUECHENG DISTRICT YUANXING WATER SUPPLY & DRAINAGE INSTALLATION ENGINEERING CO LTD
- Filing Date
- 2025-04-13
- Publication Date
- 2026-04-28
AI Technical Summary
Existing drainage devices cannot effectively prevent odors from rising during drainage, and the filter structure is fixed with bolts, making it difficult to disassemble and causing inconvenience in cleaning.
A drainage device including an odor-preventing backflow component and a fixing component is designed. The odor-preventing backflow component forms a water seal through a fixing ring, a sealing ring, a water storage tank, and a drain bend. The fixing component enables convenient installation and removal of the filter plate through a fixing block, a spring, a baffle, and a fixing pin.
It effectively prevents odors from rising, facilitates cleaning of the filter plate, prevents the ambient air quality from being affected, and simplifies the disassembly and cleaning process of the filter structure.
Smart Images

Figure CN224173460U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water supply and drainage engineering technology, and in particular to a drainage device for water supply and drainage engineering. Background Technology
[0002] Water supply and drainage engineering refers to a series of engineering facilities and technologies related to water transportation, treatment, utilization, and sewage discharge to meet people's needs for water supply and discharge in their daily lives and production processes. Drainage devices are an indispensable and important component of water supply and drainage engineering.
[0003] Most existing drainage systems only use drainage pipes and filters to discharge water from the road surface. As a result, the stones, sand and other garbage in the water can easily clog the pipe openings, making the drainage system unable to effectively discharge the water and leading to an increase in water accumulation on the road surface.
[0004] Existing patent (publication number: CN219752984U) discloses a drainage device, including a drainage box with an inlet on the side wall, a filter screen installed at the inlet, and a first transmission structure and a second transmission structure inside the drainage box. The second transmission structure is connected to a cleaning structure, and the first and second transmission structures are connected by a transmission connection. The first transmission structure is used to drive the second transmission structure to move using the water flowing into the drainage box, thereby causing the cleaning structure to reciprocate on the surface of the filter screen to clean the filter screen. The cleaning structure includes a Z-shaped connecting frame and a scraper. One end of the Z-shaped connecting frame is connected to the second transmission structure, and the other end is fixedly connected to the scraper. The scraper is located outside the drainage box and is parallel to the filter screen. A drainage pipe is connected to the bottom of the drainage box, and a flange is connected to the end of the drainage pipe away from the drainage box. This drainage device solves the problem of water accumulation caused by sand, gravel, or other garbage clogging the drainage pipe.
[0005] To address the aforementioned issues, existing patents have provided solutions. However, existing drainage devices are generally unable to effectively prevent odors from rising during the drainage process, which can affect ambient air quality. Furthermore, the filter structure of existing drainage devices is usually fixed with bolts, making it difficult to disassemble. Consequently, when the filter structure becomes clogged, it can cause inconvenience for workers during cleaning.
[0006] Therefore, a drainage device for water supply and drainage engineering is proposed. Utility Model Content
[0007] The purpose of this utility model is to provide a drainage device for water supply and drainage engineering, which can solve the problem that existing drainage devices usually cannot effectively prevent odors from rising during the drainage process, thus affecting the ambient air quality. In addition, the filter structure of existing drainage devices is usually fixed by bolts, which is not convenient to disassemble. Therefore, when the filter structure is blocked, it will cause inconvenience to the workers' cleaning work.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a drainage device for water supply and drainage engineering, including a drainage tank, an anti-odor backflow component is provided in the inner cavity of the drainage tank, a filter plate is snapped onto the top of the inner cavity of the drainage tank, fixing components are provided on both sides of the bottom of the filter plate, a connecting pipe is connected to the bottom of the drainage tank, and a flange is fixedly connected to the bottom of the surface of the connecting pipe.
[0009] The odor-preventing backflow component includes a fixing ring, on the surface of which a sealing ring is fixedly connected. The surface of the sealing ring is in close contact with the inner wall of the drain tank. A water storage tank is fixedly connected to the inner wall of the fixing ring. Multiple drain bends are connected to the bottom of the water storage tank around its perimeter, with the other end of each drain bend facing upwards.
[0010] Preferably, the fixing component includes a fixing block, the top of which is fixedly connected to the bottom of the filter plate, a spring is fixedly connected to the side of the fixing block away from the center of the bottom of the filter plate, a baffle is fixedly connected to the side of the spring away from the fixing block, a limiting circular plate is provided on the side of the fixing block away from the spring, and a fixing pin is fixedly connected to the side of the limiting circular plate close to the fixing block.
[0011] Preferably, the fixing pin passes through the fixing block, spring and baffle in sequence on the side away from the limiting circular plate and extends to the inner wall of the drainage tank. The surface of the fixing pin is slidably connected to the inner wall of the fixing block. The inner wall of the baffle is fixedly connected to the surface of the fixing pin. A connecting strip is fixedly connected to the top of the baffle. The top of the connecting strip passes through to the top of the filter plate and is fixedly connected to a handle strip.
[0012] Preferably, the top of both sides of the inner wall of the drainage tank is provided with a fixing groove for use with a fixing pin, and the side of the fixing pin near the inner wall of the fixing groove contacts the inner wall of the fixing groove. Both sides of the bottom of the filter plate are provided with a sliding groove for use with a connecting strip, and the side of the connecting strip near the inner wall of the sliding groove is slidably connected to the inner wall of the sliding groove.
[0013] Preferably, both sides of the top of the fixing ring are fixedly connected to a lifting handle, and the surface of the lifting handle is provided with anti-slip texture.
[0014] Preferably, the inner wall of the drainage tank is fixedly connected to a support ring that cooperates with the fixing ring, and the top of the support ring contacts the bottom of the fixing ring.
[0015] Preferably, positioning blocks are fixedly connected to the front and rear sides of the filter plate, and positioning slots that cooperate with the positioning blocks are opened on the top of the front and rear sides of the inner wall of the drainage tank. The side of the positioning block near the inner wall of the positioning slot contacts the inner wall of the positioning slot.
[0016] Preferably, the top of each of the four sides of the drainage tank is fixedly connected with mounting ears, and the top of each mounting ear is provided with a mounting hole.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. By setting up an anti-odor backflow component, this application can effectively prevent odors from backflowing during the drainage process of the drainage tank, thereby preventing odors from affecting the ambient air quality;
[0019] 2. This application uses a filter plate to filter and intercept debris during drainage. The filter plate can be fixed to the inlet of the drainage tank by the fixing component. The fixing method is convenient to operate, and the filter plate can be easily disassembled and cleaned when the holes of the filter plate are blocked. Attached Figure Description
[0020] Figure 1 This is an overall structural diagram of the drainage device for water supply and drainage engineering according to this utility model;
[0021] Figure 2 This is a cross-sectional view of the drainage tank and the filter plate in this utility model.
[0022] Figure 3 This is a disassembled structural diagram of the odor-preventing upward return component and the support ring in this utility model;
[0023] Figure 4 This is a bottom view of the filter plate and fixing assembly in this utility model;
[0024] Figure 5 This is a disassembled structural diagram of the fixing component in this utility model.
[0025] In the diagram, 1. Drainage tank; 2. Odor prevention and backflow prevention component; 201. Fixing ring; 202. Sealing ring; 203. Water storage tank; 204. Drainage bend; 3. Filter plate; 4. Fixing component; 401. Fixing block; 402. Spring; 403. Baffle; 404. Limiting round plate; 405. Fixing pin; 406. Connecting strip; 407. Handle strip; 5. Connecting pipe; 6. Flange; 7. Fixing groove; 8. Slide groove; 9. Lifting handle; 10. Support ring; 11. Positioning block; 12. Positioning slot; 13. Mounting ear; 14. Mounting hole. Detailed Implementation
[0026] 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.
[0027] Please see Figure 1-5 The present invention provides the following technical solution:
[0028] A drainage device for water supply and drainage engineering includes a drainage tank 1. The inner cavity of the drainage tank 1 is provided with an anti-odor backflow component 2. A filter plate 3 is snapped onto the top of the inner cavity of the drainage tank 1. Fixing components 4 are provided on both sides of the bottom of the filter plate 3. A connecting pipe 5 is connected to the bottom of the drainage tank 1. A flange 6 is fixedly connected to the bottom of the surface of the connecting pipe 5.
[0029] The odor-preventing backflow component 2 includes a fixing ring 201, a sealing ring 202 fixedly connected to the surface of the fixing ring 201, the surface of the sealing ring 202 in close contact with the inner wall of the drain tank 1, a water storage tank 203 fixedly connected to the inner wall of the fixing ring 201, and multiple drain bends 204 connected to the bottom of the water storage tank 203, with the other end of the drain bends 204 facing upwards.
[0030] In this embodiment, by setting up a drainage tank 1, an odor-preventing backflow component 2, a filter plate 3, a fixing component 4, a connecting pipe 5, and a flange 6, during use, the odor-preventing backflow component 2 effectively prevents odors from flowing back during the drainage process of the drainage tank 1, thereby preventing odors from affecting the ambient air quality. The filter plate 3 filters and intercepts debris during the drainage process. The fixing component 4 fixes the filter plate 3 at the water inlet inside the drainage tank 1, which is a convenient fixing method. When the holes of the filter plate 3 become clogged, it is easy to disassemble and clean the filter plate 3. The connecting pipe 5 and the flange 6 facilitate the connection between the drainage tank 1 and the drainage pipe, allowing the drainage tank 1 to discharge water into the drainage pipe.
[0031] Specifically, such as Figure 4 , Figure 5As shown, the fixing component 4 includes a fixing block 401. The top of the fixing block 401 is fixedly connected to the bottom of the filter plate 3. A spring 402 is fixedly connected to the side of the fixing block 401 away from the center of the bottom of the filter plate 3. A baffle 403 is fixedly connected to the side of the spring 402 away from the fixing block 401. A limiting circular plate 404 is provided on the side of the fixing block 401 away from the spring 402. A fixing pin 405 is fixedly connected to the side of the limiting circular plate 404 close to the fixing block 401.
[0032] Specifically, such as Figure 4 , Figure 5 As shown, the fixing pin 405, on the side away from the limiting circular plate 404, passes through the fixing block 401, spring 402 and baffle 403 in sequence and extends to the inner wall of the drain tank 1. The surface of the fixing pin 405 is slidably connected to the inner wall of the fixing block 401. The inner wall of the baffle 403 is fixedly connected to the surface of the fixing pin 405. A connecting strip 406 is fixedly connected to the top of the baffle 403. The top of the connecting strip 406 passes through to the top of the filter plate 3 and is fixedly connected to a handle strip 407.
[0033] Specifically, such as Figure 2 , Figure 4 As shown, the top of both sides of the inner wall of the drainage tank 1 is provided with a fixing groove 7 that is used to cooperate with the fixing pin 405. The side of the fixing pin 405 near the inner wall of the fixing groove 7 is in contact with the inner wall of the fixing groove 7. The bottom of the filter plate 3 is provided with a sliding groove 8 that is used to cooperate with the connecting strip 406. The side of the connecting strip 406 near the inner wall of the sliding groove 8 is slidably connected to the inner wall of the sliding groove 8.
[0034] In this embodiment: by setting a fixing block 401, a spring 402, a baffle 403, a limiting circular plate 404, a fixing pin 405, a connecting strip 406, a handle strip 407, a fixing groove 7, and a sliding groove 8, when the filter plate 3 is installed and fixed at the inlet of the drain tank 1, the handle strip 407 can be pulled, causing the handle strip 407 to drive the connecting strip 406 to slide in the sliding groove 8. The connecting strip 406 will drive the baffle 403 to move, and the baffle 403 will drive the fixing pin 405 to slide in the fixing block 401 and squeeze the spring 402, so that the fixing pin 405 slides to a position that does not obstruct the filter plate 3. Install the filter plate 3 in the correct position, then insert it into the drain tank 1. Release the handle bar 407 to remove the restriction on the baffle 403. At this time, the force released by the spring 402 after compression will cause the baffle 403 to move in the opposite direction. The baffle 403 will cause the fixing pin 405 to move in the opposite direction. The fixing pin 405 will be inserted into the fixing groove 7 of the drain tank 1, thus fixing the filter plate 3 at the water inlet in the drain tank 1. The fixing method is relatively convenient. The filter plate 3 can be disassembled by reversing the operation. Therefore, when the holes of the filter plate 3 are blocked, the filter plate 3 can be easily disassembled and cleaned.
[0035] Specifically, such as Figure 2 , Figure 3 As shown, both sides of the top of the fixing ring 201 are fixedly connected to the lifting handle 9, and the surface of the lifting handle 9 is provided with anti-slip texture.
[0036] Specifically, such as Figure 2 , Figure 3 As shown, a support ring 10 that works with a fixing ring 201 is fixedly connected to the inner wall of the drainage tank 1, with the top of the support ring 10 contacting the bottom of the fixing ring 201.
[0037] In this embodiment: by providing a lifting handle 9, the fixing ring 201 can be easily pulled out and removed from the drainage tank 1; by providing a support ring 10, the fixing ring 201 can be supported.
[0038] Specifically, such as Figure 1 , Figure 2 As shown, positioning blocks 11 are fixedly connected to the front and rear sides of the filter plate 3. Positioning slots 12 that cooperate with the positioning blocks 11 are opened on the top of the front and rear sides of the inner wall of the drainage tank 1. The side of the positioning block 11 that is close to the inner wall of the positioning slot 12 contacts the inner wall of the positioning slot 12.
[0039] Specifically, such as Figure 1 , Figure 2 As shown, mounting ears 13 are fixedly connected to the top of all four sides of the drainage tank 1, and mounting holes 14 are opened on the top of the mounting ears 13.
[0040] In this embodiment: by setting the positioning block 11 and the positioning slot 12, the position of the filter plate 3 installed in the drainage tank 1 can be positioned. By setting the mounting ear 13 and the mounting hole 14, the drainage tank 1 can be installed and fixed to the drainage well of the road or the drainage outlet of the building by bolts.
[0041] Working principle: In use, the drainage tank 1 is installed in the drainage well of the road or the drainage outlet of the building using bolts through the mounting ears 13 and mounting holes 14. It is then connected to the drainage pipe via the connecting pipe 5 and flange 6 using bolts and nuts. The fixing ring 201, water tank 203, and drainage bend 204 are then inserted into the drainage tank 1 through the inlet, so that the fixing ring 201 contacts the support ring 10. The support ring 10 supports the fixing ring 201, water tank 203, and drainage bend 204. At this time, the surface of the sealing ring 202 will be tightly fitted to the inner wall of the drainage tank 1. Then, the filter plate 3 is installed... Installed at the inlet of the drain tank 1, the handle bar 407 can be pulled, causing the connecting bar 406 to slide within the slide groove 8. The connecting bar 406 will move the baffle 403, which will then move the fixing pin 405 within the fixing block 401 and compress the spring 402. This will cause the fixing pin 405 to slide to a position that does not obstruct the installation of the filter plate 3. Then, the filter plate 3 is inserted into the drain tank 1. At this time, the positioning block 11 is inserted into the positioning groove 12, which can position the filter plate 3. Then, the handle bar 407 is released to remove the restriction on the baffle 403. At this time, the spring 402 will release the force after compression. When the baffle 403 moves in the reverse direction, it drives the fixing pin 405 to move in the reverse direction as well. The fixing pin 405 then inserts into the fixing groove 7 of the drain tank 1, thereby fixing the filter plate 3 at the inlet of the drain tank 1. This fixing method is relatively convenient. The filter plate 3 can be disassembled by reversing the operation. Therefore, when the holes of the filter plate 3 are blocked, it is easy to disassemble and clean the filter plate 3. When draining water, the filter plate 3 can filter impurities in the water, preventing impurities from entering the drain tank 1 and causing blockage. Then, the water passes through the filter plate 3 into the drain tank 1 and into the water storage tank 203. The bottom of tank 203 is connected to multiple drain bends 204. Water will be discharged from the drain bends 204 through the principle of communicating vessels and enter the drainage pipe through the connecting pipe 5, thus completing the drainage work. Since the drain bends 204 are curved and the other end of the drain bends 204 faces upward, after the drainage is completed, a certain amount of water will remain in the water storage tank 203 to form a water seal. This water seal is like a barrier that can block the connection between the drain bends 204 and the water storage tank 203, thereby effectively preventing the odor in the drainage pipe from returning to the water storage tank 203 and the drainage box 1 through the drain bends 204, and thus preventing the odor from spreading to the surrounding environment.
[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A drainage device for water supply and drainage engineering, comprising a drainage tank (1), characterized in that: The drainage tank (1) is provided with an anti-odor backflow component (2) in its inner cavity. A filter plate (3) is snapped onto the top of the drainage tank (1). Fixing components (4) are provided on both sides of the bottom of the filter plate (3). A connecting pipe (5) is connected to the bottom of the drainage tank (1). A flange (6) is fixedly connected to the bottom of the surface of the connecting pipe (5). The odor-proof backflow component (2) includes a fixing ring (201), a sealing ring (202) is fixedly connected to the surface of the fixing ring (201), the surface of the sealing ring (202) is in close contact with the inner wall of the drain tank (1), a water storage tank (203) is fixedly connected to the inner wall of the fixing ring (201), and multiple drain bends (204) are connected to the bottom of the water storage tank (203) around its perimeter, with the other end of the drain bend (204) opening upwards.
2. A drainage device for water supply and drainage engineering according to claim 1, characterized in that: The fixing component (4) includes a fixing block (401), the top of which is fixedly connected to the bottom of the filter plate (3), a spring (402) is fixedly connected to the side of the fixing block (401) away from the center of the bottom of the filter plate (3), a baffle (403) is fixedly connected to the side of the spring (402) away from the fixing block (401), a limiting circular plate (404) is provided on the side of the fixing block (401) away from the spring (402), and a fixing pin (405) is fixedly connected to the side of the limiting circular plate (404) close to the fixing block (401).
3. A drainage device for water supply and drainage engineering according to claim 2, characterized in that: The fixing pin (405) passes through the fixing block (401), spring (402) and baffle (403) in sequence on the side away from the limiting circular plate (404) and extends to the inner wall of the drain tank (1). The surface of the fixing pin (405) is slidably connected to the inner wall of the fixing block (401). The inner wall of the baffle (403) is fixedly connected to the surface of the fixing pin (405). A connecting strip (406) is fixedly connected to the top of the baffle (403). The top of the connecting strip (406) passes through to the top of the filter plate (3) and is fixedly connected to a handle strip (407).
4. A drainage device for water supply and drainage engineering according to claim 3, characterized in that: The top of both sides of the inner wall of the drainage tank (1) is provided with a fixing groove (7) that is used in conjunction with the fixing pin (405). The side of the fixing pin (405) near the inner wall of the fixing groove (7) is in contact with the inner wall of the fixing groove (7). The bottom of the filter plate (3) is provided with a sliding groove (8) that is used in conjunction with the connecting strip (406). The side of the connecting strip (406) near the inner wall of the sliding groove (8) is slidably connected to the inner wall of the sliding groove (8).
5. A drainage device for water supply and drainage engineering according to claim 1, characterized in that: Both sides of the top of the fixed ring (201) are fixedly connected to a lifting handle (9), and the surface of the lifting handle (9) is provided with anti-slip texture.
6. A drainage device for water supply and drainage engineering according to claim 1, characterized in that: The inner wall of the drainage tank (1) is fixedly connected to a support ring (10) that works in conjunction with a fixing ring (201), and the top of the support ring (10) contacts the bottom of the fixing ring (201).
7. A drainage device for water supply and drainage engineering according to claim 1, characterized in that: The filter plate (3) is fixedly connected to the front and rear sides with positioning blocks (11). The top of the front and rear sides of the inner wall of the drainage tank (1) is provided with positioning slots (12) that cooperate with the positioning blocks (11). The side of the positioning block (11) close to the inner wall of the positioning slot (12) contacts the inner wall of the positioning slot (12).
8. A drainage device for water supply and drainage engineering according to claim 1, characterized in that: The top of the drainage tank (1) is fixedly connected with mounting ears (13), and the top of the mounting ears (13) is provided with mounting holes (14).
Citation Information
Patent Citations
Drainage device
CN219752984U