Anti-backflow rain and sewage diversion device
By designing a rainwater and sewage-proof diversion device, the anti-flow mechanism and connectors are used to achieve efficient cleaning of rainwater and debris, solving the problems of low cleaning efficiency and poor safety of existing devices, and achieving efficient cleaning without going down the well.
Patent Information
- Application Number
- CN202423017852.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-12-09
AI Technical Summary
The existing rainwater and sewage diversion devices are inefficient when cleaning solid debris, and require personnel to go down the well to operate, and the internal space of the device is limited and it is easy to be blocked.
A wastewater-proof and sewage-proof device is designed, including an outer cylinder body, an inner cylinder body, a filter mesh cover and an anti-flow mechanism. The anti-flow mechanism prevents rainwater from flowing backflow, and the connecting parts are used to separate the filter mesh cover from the inner cylinder body, which is convenient for cleaning up accumulated debris and avoiding down-hole operations.
It realizes efficient cleaning of solid debris, improves cleaning efficiency, avoids personnel going down the well, and ensures safety and convenience.
Smart Images
Figure CN223151303U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of rain and sewage diversion, and more specifically, to an anti-backflow rain and sewage diversion device. Background Art
[0002] In the urban road drainage system, rainwater on each road surface is usually guided to underground pipelines by means of pipeline confluence, and then centrally transported to a sewage treatment plant for treatment. Generally, an anti-backflow structure is installed on the underground pipeline to prevent rain and sewage from flowing back to the road surface.
[0003] However, the current rain and sewage diversion device filters solid debris carried by rainwater. Due to the limited internal space of the device, in order to prevent blockage caused by filling inside, regular cleaning and timely cleaning after rain are required. During cleaning, the sludge inside can be directly pumped out, while other solid debris may require personnel to enter the well for cleaning, resulting in low cleaning efficiency and inconvenient operation. Summary of the Utility Model
[0004] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide an anti-backflow rain and sewage diversion device.
[0005] To solve the above problems, the utility model adopts the following technical solutions.
[0006] An anti-backflow rain and sewage diversion device includes an outer cylinder body, a top cover is clamped at the top of the outer cylinder body, an inner cylinder body is fixedly connected to the bottom of the top cover by bolts, drain pipes are fixedly connected to both sides of the outer cylinder body, a central ring is fixedly connected between the outer sides of the opposite ends of the two drain pipes and the inner side of the outer cylinder body, an anti-backflow mechanism is installed inside the central ring, the inner cylinder body is inserted into the outer cylinder body, annularly distributed connectors are installed at the bottom of the inner cylinder body, a filter mesh cover is installed on the connectors, and the bottom of the filter mesh cover contacts the top of the central ring.
[0007] As a further description of the above technical solution: The anti-backflow mechanism includes a vertical guide rod, a spring and a sealing disc. The bottom end of the vertical guide rod is fixedly connected to the bottom inside the outer cylinder body, the top end of the vertical guide rod penetrates through to the top of the sealing disc, the outer side of the sealing disc is slidably matched with the central ring, the spring is sleeved outside the vertical guide rod, the top end of the spring is fixedly connected to the bottom of the sealing disc, and the bottom end of the spring is fixedly connected to the inside of the outer cylinder body.
[0008] As a further description of the above technical solution: The front view section of the filter mesh cover is convex-shaped, and the top end of the vertical guide rod contacts and cooperates with the bottom of the filter mesh cover upward.
[0009] As a further description of the above technical solution: The connecting member includes a hinge block and a locking bolt. One end of the hinge block is hinged to the bottom of the inner cylinder, and the top surface of the hinge block contacts the bottom surface of the filter mesh cover and is fixedly connected by the locking bolt.
[0010] As a further description of the above technical solution: An outer lip ring is fixedly connected to the outside of the top of the central ring, and an inner lip ring is fixedly connected to the inside of the top of the central ring. The bottom of the inner lip ring contacts and cooperates with the top of the sealing disc.
[0011] As a further description of the above technical solution: A rubber sealing ring is fixedly connected to the bottom of the inner lip ring.
[0012] Compared with the prior art, the advantages of the present utility model are as follows:
[0013] This solution realizes the prevention of rainwater backflow through the anti-backflow mechanism, has good sealing performance, and uses the connecting member to cooperate with the connection of the inner cylinder and the filter mesh cover, thereby realizing the advantages that the device is more convenient and efficient for cleaning accumulated sundries, does not require personnel to enter the well, and is efficient and safe. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a front sectional structure schematic diagram of the present utility model;
[0015] Figure 2 is Figure 1 a schematic enlarged view of the structure of part A in
[0016] Figure 3 is a partial bottom view structure schematic diagram of the present utility model;
[0017] Figure 4 is a partial three-dimensional structure schematic diagram of the present utility model.
[0018] Explanation of the reference numerals in the drawings:
[0019] 1. Outer cylinder; 2. Top cover; 3. Inner cylinder; 4. Drain pipe; 5. Central ring; 51. Outer lip ring; 52. Inner lip ring; 521. Rubber sealing ring; 6. Anti-backflow mechanism; 61. Vertical guide rod; 62. Spring; 63. Sealing disc; 7. Connecting member; 71. Hinge block; 72. Locking bolt; 8. Filter mesh cover. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model;
[0021] Please refer to Figures 1 to 4, in the present utility model, an anti-backflow rainwater and sewage diversion device includes an outer cylinder body 1. A top cover 2 is snap-connected to the top of the outer cylinder body 1. The bottom of the top cover 2 is fixedly connected to an inner cylinder body 3 by bolts. Drain pipes 4 are fixedly connected to both sides of the outer cylinder body 1. A central ring 5 is fixedly connected between the outer sides of the opposite ends of the two drain pipes 4 and the inner side of the outer cylinder body 1. An anti-backflow mechanism 6 is installed inside the central ring 5. The inner cylinder body 3 is inserted into the inner part of the outer cylinder body 1. An annularly distributed connecting member 7 is installed at the bottom of the inner cylinder body 3. A filter mesh cover 8 is installed on the connecting member 7. The bottom of the filter mesh cover 8 contacts the top of the central ring 5.
[0022] In the present utility model, with the outer cylinder body 1 as the main body of the device, during use, first install the outer cylinder body 1 as the main body into the sewer well, and make the drain pipes 4 communicate with the underground pipes. When rainwater flows into the inner part of the outer cylinder body 1, solid debris is filtered by the filter mesh cover 8 inside the inner cylinder body 3. The filtered rainwater squeezes the anti-backflow mechanism 6 under the action of gravity, making the inner cylinder body 3 communicate with the two drain pipes 4 to achieve rainwater discharge. When water flow backflows inside the drain pipes 4, at this time, the top of the anti-backflow mechanism 6 is pushed up again and sealed with the central ring 5 to prevent the water flow from flowing back into the inner cylinder body 3. And when it is necessary to clean the internal filtered debris, directly use the hoisting mechanism to lift the top cover 2, lift out the inner cylinder body 3 and the filter mesh cover 8 together, then disassemble the connecting member 7 to separate the filter mesh cover 8 from the inner cylinder body 3, efficiently clean the accumulated solid debris inside, then reconnect and assemble, and lower it again into the inner part of the outer cylinder body 1 to complete the reinstallation. Thus, the device has the advantages of being more convenient and efficient in cleaning the accumulated debris, without the need for personnel to enter the well, being efficient and safe, solving the problems in the prior art that in order to prevent internal filling and blockage, regular cleaning and timely cleaning after rain are required. When cleaning, the sludge inside can be directly pumped out, while other solid debris may require personnel to enter the well for cleaning, with low cleaning efficiency and inconvenient operation.
[0023] Please refer to Figure 1 and Figure 4 , wherein: the anti-backflow mechanism 6 includes a vertical guide rod 61, a spring 62 and a sealing disc 63. The bottom end of the vertical guide rod 61 is fixedly connected to the bottom inside the outer cylinder body 1. The top end of the vertical guide rod 61 penetrates through to the top of the sealing disc 63. The outer side of the sealing disc 63 is slidably matched with the central ring 5. The spring 62 is sleeved outside the vertical guide rod 61. The top end of the spring 62 is fixedly connected to the bottom of the sealing disc 63. The bottom end of the spring 62 is fixedly connected to the inner part of the outer cylinder body 1.
[0024] In the present utility model, when the sealing disc 63 receives the impact force of the downward flowing rainwater, it compresses the spring 62 and slides down along the vertical guide rod 61, making the inside of the inner cylinder body 3 communicate with the drain pipes 4 to achieve drainage. When water flows back inside the drain pipes 4, the spring 62 pushes the sealing disc 63 up to seal with the central ring 5 to achieve anti-backflow.
[0025] Please refer to Figure 1 and Figure 4 , where: the front view section of the filter screen cover 8 is convex-shaped, and the top end of the vertical guide rod 61 contacts and cooperates with the bottom of the filter screen cover 8 upwardly.
[0026] In the present utility model, due to the convex-shaped front view section of the filter screen cover 8, it avoids the accumulation of sundries and blocking of the water flow downward channel, and the top end of the vertical guide rod 61 supports the filter screen cover 8, making its stability better and load-bearing capacity better.
[0027] Please refer to Figure 2 , where: the connecting member 7 includes a hinge block 71 and a locking bolt 72. One end of the hinge block 71 is hinged to the bottom of the inner cylinder body 3, and the top surface of the hinge block 71 contacts the bottom surface of the filter screen cover 8 and is fixedly connected through the locking bolt 72.
[0028] In the present utility model, the hinge block 71 swings at the bottom of the outer cylinder body 1 to contact the bottom of the filter screen cover 8, and the filter screen cover 8 is connected and fixed to the hinge block 71 by using the locking bolt 72.
[0029] Please refer to Figure 1 , where: an outer lip ring 51 is fixedly connected to the outside of the top of the central ring 5, an inner lip ring 52 is fixedly connected to the inside of the top of the central ring 5, and the bottom of the inner lip ring 52 contacts and cooperates with the top of the sealing disc 63.
[0030] In the present utility model, the outer lip ring 51 stably supports the filter screen cover 8, and the inner lip ring 52 limits the direction of the sealing disc 63, making the stability of the sealing disc 63 better when rainwater flows backward.
[0031] Please refer to Figure 1 , where: a rubber sealing ring 521 is fixedly connected to the bottom of the inner lip ring 52.
[0032] In the present utility model, the rubber sealing ring 521 has the advantage of making the contact and sealing effect between the inner lip ring 52 and the sealing disc 63 better.
[0033] The above is only the preferred specific embodiment of the present utility model; however, the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.
Claims
1. A rain and sewage diversion device to prevent backflow, comprising an outer cylinder body (1), characterized in that: A top cover (2) is snap-fitted to the top of the outer cylinder body (1). The bottom of the top cover (2) is fixedly connected to an inner cylinder body (3) by bolts. Drain pipes (4) are fixedly connected to both sides of the outer cylinder body (1). A central ring (5) is fixedly connected between the outer sides of the opposite ends of the two drain pipes (4) and the inner side of the outer cylinder body (1). An anti-backflow mechanism (6) is installed inside the central ring (5). The inner cylinder body (3) is inserted into the inner part of the outer cylinder body (1). An annularly distributed connecting member (7) is installed at the bottom of the inner cylinder body (3). A filter mesh cover (8) is installed on the connecting member (7). The bottom of the filter mesh cover (8) contacts the top of the central ring (5).
2. The anti-backflow rain and sewage diversion device according to claim 1, characterized in that: The anti-backflow mechanism (6) includes a vertical guide rod (61), a spring (62) and a sealing disc (63). The bottom end of the vertical guide rod (61) is fixedly connected to the bottom of the inner side of the outer cylinder body (1). The top end of the vertical guide rod (61) penetrates through to the top of the sealing disc (63). The outer side of the sealing disc (63) is slidably matched with the central ring (5). The spring (62) is sleeved on the outer side of the vertical guide rod (61). The top end of the spring (62) is fixedly connected to the bottom of the sealing disc (63). The bottom end of the spring (62) is fixedly connected to the inside of the outer cylinder body (1).
3. The rain and sewage diversion device for preventing backflow according to claim 2, characterized in that: The front view section of the filter mesh cover (8) is convex-shaped. The top end of the vertical guide rod (61) contacts and cooperates with the bottom of the filter mesh cover (8) upward.
4. The rain and sewage diversion device for preventing backflow according to claim 1, characterized in that: The connecting member (7) includes a hinge block (71) and a locking bolt (72). One end of the hinge block (71) is hinged to the bottom of the inner cylinder body (3). The top surface of the hinge block (71) contacts the bottom surface of the filter mesh cover (8) and is fixedly connected by the locking bolt (72).
5. The anti-backflow rain and sewage diversion device according to claim 2, characterized in that: An outer lip ring (51) is fixedly connected to the outer side of the top of the central ring (5). An inner lip ring (52) is fixedly connected to the inner side of the top of the central ring (5). The bottom of the inner lip ring (52) contacts and cooperates with the top of the sealing disc (63).
6. The anti-backflow rain and sewage diversion device according to claim 5, characterized in that: A rubber sealing ring (521) is fixedly connected to the bottom of the inner lip ring (52).