Anti-backflow and anti-falling well lid suitable for river channel sewage interception main pipe
By adding anti-flow components and sealing mechanisms to the manhole cover of the river sewage interception main pipe system, the safety hazards caused by rainwater backflow and theft and loss of manhole covers are solved, and effective sewage anti-flow and safety protection effects are achieved.
Patent Information
- Application Number
- CN202421561513.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-04
AI Technical Summary
The manhole covers in the existing river sewage interception main pipe system are not effective in dealing with rainwater backflow, and the manhole covers are easily stolen or lost, resulting in safety hazards.
A manhole cover that prevents backflow and fall is designed, and an anti-flow component and a sealing mechanism are used to prevent backflow of water, and the safety is improved through the anti-fall mechanism.
Effectively prevent sewage from pouring back into the river, avoid pollution, and provide anti-falling function when manhole cover is missing, improving safety.
Smart Images
Figure CN222745121U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of manhole covers, in particular to a backflow and falling prevention manhole cover suitable for a sewage interception main pipe in a river. Background Art
[0002] In rainy weather, rainwater backflow is particularly common. However, the manhole covers in the river sewage interception main pipe system, which are widely used at present, are powerless to deal with rainwater backflow. These manhole covers are not designed to effectively prevent sewage from backflowing into the river from the wellhead, which may cause sewage to flow upstream and pollute the river environment. In addition, the existing manhole covers face another serious problem in use - the manhole covers are often stolen or accidentally lost. Once the manhole covers are missing, it not only brings inconvenience to pedestrians, but also increases the risk of accidental falls, especially at night or in poor visibility. This risk is particularly prominent and constitutes a serious safety hazard. Therefore, we propose an anti-backflow and anti-fall manhole cover suitable for river sewage interception main pipes. Utility Model Content
[0003] The main purpose of the utility model is to provide a backflow and fall-proof manhole cover suitable for a river sewage interception main pipe, which can effectively solve the problems in the background technology.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0005] A backflow prevention and falling prevention manhole cover suitable for a river sewage interception main pipe comprises a main pipe inspection well, two river sewage interception pipes are arranged at the lower part of the outer surface of the main pipe inspection well, an anti-fall mechanism is inserted and fixedly connected to the upper part of the inner well wall of the main pipe inspection well, an installation slot is provided on the inner side of the upper end periphery of the main pipe inspection well, the manhole cover is clamped inside the installation slot, a plurality of leakage grooves are provided at the upper end of the manhole cover, an anti-backflow cylinder is fixedly connected between the lower end periphery of the manhole cover, a sealing mechanism is arranged inside the anti-backflow cylinder, a filter cylinder is threadedly connected to the lower part of the outer surface of the anti-backflow cylinder, a plurality of anti-slip strips are fixedly connected to the outer surface of the filter cylinder, a sealing ring is fixedly connected to the periphery of the lower cylinder wall of the filter cylinder, and a filter net is inserted and fixedly connected to the middle part of the lower end of the filter cylinder.
[0006] Preferably, the blocking mechanism includes a floating frame, a support ring is interspersed and fixedly connected to the periphery of the upper end of the floating frame, a blocking strip is fixedly connected to the upper end of the floating frame, and a limiting frame is interspersed and fixedly connected to the outer surface front, outer surface rear, outer surface left and outer surface right of the floating frame, and the upper ends of the four limiting frames are fixedly connected to the lower end of the inspection manhole cover. By adopting the above technical solution: the leaking hole on the manhole cover can be blocked to prevent water backflow.
[0007] Preferably, the floating frame is configured as a cross, a plurality of the blocking strips are respectively located directly below a plurality of the water leakage grooves, and the limiting frame is configured as an L-shaped structure. By adopting the above technical solution: the floating frame is configured as an XPE material or an IXPE material, which not only has fine and uniform pores, but also has strong toughness and flexibility, so that the limiting frame can limit the floating frame.
[0008] Preferably, spiral patterns are engraved on the lower outer surface of the anti-backflow cylinder and the side cylinder wall of the filter cylinder, and the diameter of the filter cylinder is smaller than the inner diameter of the main pipe inspection well. By adopting the above technical solution, it is convenient to install and disassemble the anti-backflow cylinder and the filter cylinder, and it is convenient to clean the impurities filtered out of the filter net, and the anti-slip strip on the filter cylinder does not contact the wall of the main pipe inspection well.
[0009] Preferably, the anti-fall mechanism includes a support ring, the inner side of the lower end of the support ring is fixedly connected with a plurality of support blocks, and the outer sides of the plurality of support blocks are fixedly connected with the inner wall of the main pipe inspection well, the upper end of the support ring is provided with a plurality of positioning holes, and a plurality of positioning holes are clamped with positioning rods, and the upper ends of the plurality of positioning rods are fixedly connected with an anti-fall net, and the outer surface of the support ring is fixedly connected with the inner wall of the main pipe inspection well through insertion. By adopting the above technical solution: it can have anti-fall protection performance and improve safety.
[0010] Preferably, the plurality of support blocks and the plurality of positioning holes are distributed in an interlaced manner, and the plurality of support blocks are all arranged in a triangular structure.
[0011] By adopting the above technical solution, the support block and the positioning hole do not affect each other, and the firmness of the support ring is enhanced by the support of the support block.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] 1. By setting up anti-backflow components and blocking mechanisms, when the water level rises, the buoyancy of the floating frame and the limit of the limit frame can drive several blocking strips to move upward stably and insert them into the corresponding leakage grooves for blocking, thereby preventing backflow. This design can effectively prevent sewage from flowing back into the river from the wellhead, and avoid sewage flowing upstream to pollute the river environment.
[0014] 2. By setting up an anti-fall mechanism and inserting the positioning rod into the positioning hole, the support ring supports the anti-fall net, so that the anti-fall net can be used to prevent falling. The anti-fall net is removable and replaceable, and it is also convenient to enter the inspection well for maintenance. It can play an anti-fall function when the manhole cover is stolen or accidentally lost, reducing the risk of accidental falls of pedestrians and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the overall structure of a backflow and fall-proof manhole cover suitable for a river sewage interception main pipe according to the utility model;
[0016] Figure 2 It is an exploded view of an anti-backflow component of an anti-backflow and anti-falling manhole cover suitable for a river sewage interception main pipe according to the utility model;
[0017] Figure 3 This is a structural schematic diagram of a blocking mechanism of a manhole cover for preventing backflow and falling that is suitable for a sewage interception main pipe in a river according to the utility model;
[0018] Figure 4 The utility model is a structural schematic diagram of an anti-falling mechanism of a manhole cover for preventing backflow and falling that is suitable for a sewage interception main pipe in a river.
[0019] In the figure: 1. Main pipe inspection well; 2. River sewage interception pipe; 3. Anti-fall mechanism; 31. Support ring; 32. Support block; 33. Positioning hole; 34. Positioning rod; 35. Anti-fall net; 4. Installation slot; 5. Inspection well cover; 6. Leakage trough; 7. Anti-backflow cylinder; 8. Sealing mechanism; 81. Floating frame; 82. Support ring; 83. Sealing strip; 84. Limiting frame; 9. Filter cartridge; 10. Anti-slip strip; 11. Sealing ring; 12. Filter net. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0023] See also Figure 1-4 , the utility model provides a technical solution:
[0024] A backflow prevention and falling prevention manhole cover suitable for a river sewage interception main pipe comprises a main pipe inspection well 1, two river sewage interception pipes 2 are arranged at the lower part of the outer surface of the main pipe inspection well 1, an anti-fall mechanism 3 is inserted and fixedly connected to the upper part of the inner well wall of the main pipe inspection well 1, an installation slot 4 is opened on the inner side of the upper end periphery of the main pipe inspection well 1, an inspection well cover 5 is clamped inside the installation slot 4, a plurality of leakage grooves 6 are opened at the upper end of the inspection well cover 5, an anti-backflow cylinder 7 is fixedly connected between the lower end periphery of the inspection well cover 5, a sealing mechanism 8 is arranged inside the anti-backflow cylinder 7, a filter cylinder 9 is threadedly connected to the lower part of the outer surface of the anti-backflow cylinder 7, a plurality of anti-slip strips 10 are fixedly connected to the outer surface of the filter cylinder 9, a sealing ring 11 is fixedly connected to the periphery of the lower cylinder wall of the filter cylinder 9, and a filter screen 12 is inserted and fixedly connected to the middle part of the lower end of the filter cylinder 9.
[0025] In this embodiment, the sealing mechanism 8 includes a floating frame 81, and a support ring 82 is interspersed and fixedly connected to the periphery of the upper end of the floating frame 81, and a sealing strip 83 is fixedly connected to the upper end of the floating frame 81. The front, rear, left and right outer surfaces of the floating frame 81 are interspersed and fixedly connected with limiting frames 84, and the upper ends of the four limiting frames 84 are fixedly connected to the lower end of the inspection well cover 5; the floating frame 81 is arranged in a cross shape, and several sealing strips 83 are respectively located directly below several leakage grooves 6, and the limiting frames 84 are arranged in an L-shaped structure; the lower part of the outer surface of the backflow prevention cylinder 7 and the side cylinder wall of the filter cylinder 9 are engraved with spiral patterns, and the diameter length of the filter cylinder 9 is smaller than the inner diameter length of the main pipe inspection well 1. Through the above scheme: when it rains and the water level in the main pipe inspection well 1 rises, water passes through the filter screen 12 and enters the interior of the anti-backflow cylinder 7, and then through the buoyancy of the floating frame 81 itself, and the guiding and limiting of the floating frame 81 by the limiting frame 84, and the support of the several sealing strips 83 by the supporting ring 82, the several sealing strips 83 can be driven to move upward stably and inserted into the corresponding several leakage grooves 6 for sealing, thereby preventing the phenomenon of sewage backflow. This design can effectively prevent sewage from backflowing into the river from the main pipe inspection well 1, and can effectively avoid the situation where sewage flows upstream and pollutes the river environment.
[0026] In this embodiment, the anti-fall mechanism 3 includes a support ring 31, and a plurality of support blocks 32 are fixedly connected to the inner side of the lower end of the support ring 31, and the outer sides of the plurality of support blocks 32 are fixedly connected to the inner wall of the main pipe inspection well 1. A plurality of positioning holes 33 are opened at the upper end of the support ring 31, and positioning rods 34 are clamped in the plurality of positioning holes 33. An anti-fall net 35 is fixedly connected between the upper ends of the plurality of positioning rods 34, and the outer surface of the support ring 31 is fixedly connected to the inner wall of the main pipe inspection well 1 through insertion; the plurality of support blocks 32 and the plurality of positioning holes 33 are staggered with each other, and the plurality of support blocks 32 are arranged in a triangular structure. Through the above scheme: by inserting a plurality of positioning rods 34 into the corresponding plurality of positioning holes 33 respectively, the anti-fall net 35 is installed and fixed inside the main pipe inspection well 1, and the anti-fall net 35 can be supported by the support ring 31, and the support effect of the support ring 31 is improved by a plurality of support blocks 32, and the firmness of the support ring 31 is strengthened, and the anti-fall net 35 installed inside the main pipe inspection well 1 can play an anti-fall role. When the inspection well cover 5 is stolen or accidentally lost, the anti-fall net 35 plays an anti-fall function, thereby reducing the risk of accidental falling of pedestrians and improving safety. The anti-fall net 35 is detachable and replaceable, which is convenient for replacing a new anti-fall net 35 to enhance the protection effect, and is also convenient for entering the main pipe inspection well 1 for inspection and maintenance.
[0027] It should be noted that the anti-fall mechanism 3 is first installed inside the main inspection well 1. When the inspection well cover 5 becomes the target of criminals and is stolen, or is accidentally lost for various reasons, the anti-fall mechanism 3 can play an anti-fall role, which can reduce the risk of pedestrians falling accidents and improve safety. Then the inspection well cover 5 is placed in the installation card slot 4 for card-connected installation. When it rains, rainwater enters the anti-backflow cylinder 7 through the several leakage grooves 6 on the inspection well cover 5, and then the impurities in the rainwater are filtered out by the filter net 12. After being discharged into the main pipe inspection well 1, when impurities need to be cleaned, the inspection well cover 5 can be taken out from the main pipe inspection well 1 first, and then the filter cartridge 9 can be rotated by a plurality of anti-slip strips 10, and the filter cartridge 9 can be removed from the anti-backflow cartridge 7, so as to facilitate the cleaning of the impurities filtered out and collected therein. When the water level in the main pipe inspection well 1 rises, the buoyancy of the water can push the sealing mechanism 8 to move upward to block the multiple leakage grooves 6 for sealing, so as to prevent the backflow of sewage and avoid the sewage from flowing upstream to pollute the river environment, thereby improving the practicability of the well cover.
[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A backflow and fall prevention manhole cover suitable for a sewage interception main pipe in a river, comprising a main pipe inspection well (1), characterized in that: Two river sewage interception pipes (2) are arranged at the lower part of the outer surface of the main pipe inspection well (1), an anti-fall mechanism (3) is inserted and fixedly connected to the upper part of the inner well wall of the main pipe inspection well (1), a mounting slot (4) is provided on the inner side of the upper end periphery of the main pipe inspection well (1), a manhole cover (5) is clamped inside the mounting slot (4), a plurality of leakage grooves (6) are provided at the upper end of the manhole cover (5), an anti-backflow cylinder (7) is fixedly connected between the lower end periphery of the manhole cover (5), a blocking mechanism (8) is arranged inside the anti-backflow cylinder (7), a filter cylinder (9) is threadedly connected to the lower part of the outer surface of the anti-backflow cylinder (7), a plurality of anti-slip strips (10) are fixedly connected to the outer surface of the filter cylinder (9), a sealing ring (11) is fixedly connected to the periphery of the lower cylinder wall of the filter cylinder (9), and a filter screen (12) is inserted and fixedly connected to the middle part of the lower end of the filter cylinder (9).
2. The anti-backflow and anti-falling manhole cover suitable for river sewage interception main pipe according to claim 1 is characterized by: The blocking mechanism (8) comprises a floating frame (81), a support ring (82) is interspersed and fixedly connected to the periphery of the upper end of the floating frame (81), a blocking strip (83) is fixedly connected to the upper end of the floating frame (81), and a limiting frame (84) is interspersed and fixedly connected to the front, rear, left and right outer surfaces of the floating frame (81), and the upper ends of the four limiting frames (84) are fixedly connected to the lower end of the inspection well cover (5).
3. The anti-backflow and anti-falling manhole cover suitable for river sewage interception main pipe according to claim 2 is characterized by: The floating frame (81) is arranged in a cross shape, a plurality of the blocking strips (83) are respectively located directly below a plurality of the water leakage grooves (6), and the limiting frame (84) is arranged in an L-shaped structure.
4. The anti-backflow and anti-falling manhole cover suitable for river sewage interception main pipe according to claim 1 is characterized by: The lower portion of the outer surface of the backflow prevention cylinder (7) and the side cylinder wall of the filter cylinder (9) are both engraved with spiral patterns, and the diameter of the filter cylinder (9) is smaller than the inner diameter of the main pipe inspection well (1).
5. The anti-backflow and anti-falling manhole cover suitable for river sewage interception main pipe according to claim 1 is characterized by: The anti-fall mechanism (3) comprises a support ring (31), a plurality of support blocks (32) are fixedly connected to the inner side of the lower end of the support ring (31), and the outer sides of the plurality of support blocks (32) are fixedly connected to the inner wall of the main pipe inspection well (1), a plurality of positioning holes (33) are opened at the upper end of the support ring (31), a plurality of positioning holes (33) are clamped in the plurality of positioning holes (33), an anti-fall net (35) is fixedly connected between the upper ends of the plurality of positioning rods (34), and the outer surface of the support ring (31) is fixedly connected to the inner wall of the main pipe inspection well (1) through insertion.
6. The anti-backflow and anti-falling manhole cover suitable for river sewage interception main pipe according to claim 5, characterized in that: The plurality of support blocks (32) and the plurality of positioning holes (33) are distributed in an interlaced manner, and the plurality of support blocks (32) are all arranged in a triangular structure.