Well lid for municipal pipe network
By installing drainage outlets and sealing mechanisms on manhole covers, the drainage speed can be automatically adjusted, solving the problem of slow drainage during rainfall and improving road safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2026-03-31
AI Technical Summary
Existing manhole covers drain water slowly during rainfall, causing water accumulation. This requires manual opening of the manhole covers to drain the water, which affects road safety.
A manhole cover for municipal pipe networks has been designed. The manhole cover is equipped with a drainage outlet and a sealing mechanism, including a first fixing block, a second fixing block and a sealing block. Automatic drainage is achieved through sliding connection and driving mechanism to avoid manual operation.
It achieves automatic adjustment of drainage speed, avoids the trouble of finding manhole cover locations and manually opening them, reduces road safety hazards, and adapts to different rainfall conditions.
Smart Images

Figure CN224063514U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of municipal drainage equipment, specifically a manhole cover for municipal pipe networks. Background Technology
[0002] Manhole covers are used to cover sewer manholes in municipal roads or deep wells in homes to prevent people or objects from falling in. They can be used in green belts, sidewalks, motor vehicle lanes, docks, alleys, and other locations. In urban road administration, round manhole covers are generally used because they are less likely to tilt, thus better protecting the safety of pedestrians and vehicles.
[0003] During rainfall, existing urban roads are prone to water accumulation due to slow drainage. When there is a lot of water, the only way to drain the water is to manually open the manhole covers. However, due to the presence of water, it is difficult to find the location of the manhole covers and it is also difficult to open them. Furthermore, the manhole covers lose their protective function after being removed, posing a safety hazard to vehicles traveling on the road. Utility Model Content
[0004] The purpose of this utility model is to provide a manhole cover for municipal pipeline networks to solve the aforementioned technical problems.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A manhole cover for municipal pipeline network includes a manhole cover base and a manhole cover movably embedded in the manhole cover base. The manhole cover has several groups of evenly arranged drainage outlets, each group of drainage outlets including several evenly arranged drainage outlets. A sealing mechanism is slidably connected inside the manhole cover, and the sealing mechanism is used to seal and open the drainage outlets.
[0007] The sealing mechanism includes a first fixing block and a second fixing block, and a plurality of sealing blocks are fixedly connected between the first fixing block and the second fixing block. A plurality of drainage holes are evenly and intermittently provided on the sealing blocks. The drainage holes match the drainage outlets. When the area between the plurality of drainage holes corresponds to the drainage outlet, the drainage outlet is blocked. When the plurality of drainage holes correspond to the drainage outlet, the drainage outlet is opened.
[0008] As a further embodiment of this utility model: a movable cavity is provided inside the manhole cover, the first fixing block and the second fixing block are of the same length and are arranged in parallel, the number of the sealing blocks is the same as the number of groups of drainage outlets and corresponds to them, and several drainage outlets correspond to the drainage outlets at the same time, while being completely misaligned with the drainage outlets.
[0009] As a further embodiment of this utility model: a number of honeycomb holes are provided in the area between a number of drainage holes; the first fixing block, the second fixing block and the sealing block are all slidably connected in the moving cavity; a number of first return springs are provided on the opposite sides of the first fixing block and the second fixing block; and the other end of the first return spring is fixedly connected to the side wall of the moving cavity.
[0010] As a further embodiment of this utility model: a driving mechanism is provided below the manhole cover. The driving mechanism includes a bracket fixedly installed on one side of the bottom surface of the manhole cover. The bracket is located directly below the first fixing block or the second fixing block. A water collection trough is rotatably connected to the bracket. The water collection trough is located directly below the manhole cover and is used to collect water flowing in through the drain outlet. Connecting seats are fixedly installed on two sides of the water collection trough. A second return spring is fixedly connected between the connecting seats and the bracket.
[0011] As a further embodiment of this utility model: a connecting rod is fixedly connected to the bottom surface of the first fixing block or the second fixing block, the connecting rod extends out of the well cover, a connecting seat is fixedly provided on the end face of the water collection tank, a connecting hole is provided on the connecting seat, the free end of the connecting rod passes through the connecting hole, and the connecting hole is larger than the cross-section of the connecting rod.
[0012] As a further embodiment of this utility model: a limiting block is fixedly provided at the free end of the connecting rod, and the length of the limiting block is greater than the diameter of the connecting hole.
[0013] As a further embodiment of this utility model: a movable groove is provided on the lower side of the manhole cover, and the connecting rod is located in the movable groove and moves along the movable groove.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] In this invention, when the area between several drainage holes corresponds to the drainage outlet, the drainage outlet is blocked. The honeycomb holes are set in this area to cope with the situation of low rainfall. When the rainfall is low, water will not accumulate due to the complete blockage of the drainage outlet.
[0016] As the water collection trough rotates along the support in this utility model, it will drive the connecting seat to move together. The connecting seat will drive the connecting rod in the connecting hole to move. The connecting rod will drive the first or second fixed block to move to one side along the moving cavity, so as to realize the correspondence between the drainage hole and the drainage outlet, accelerate the drainage of rainwater, eliminate the need to manually open the manhole cover for drainage work, eliminate the need to find the location of the manhole cover, and reduce the safety hazards to vehicles traveling on the road.
[0017] When the rain is light, the water in the collection tank accumulates slowly and can be drained in time without affecting the connecting rod. The collection tank needs a process to rotate along the support, so the degree of correspondence between the drain hole and the drain outlet is different at different positions, and the drainage speed is also different. Therefore, this device can flexibly change the drainage speed and can adapt to various weather conditions. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a three-dimensional structural diagram of the sealing mechanism in this utility model;
[0020] Figure 3 This is a schematic diagram of the structure of the manhole cover in this utility model;
[0021] Figure 4 This is a top view of the sealing mechanism in this utility model;
[0022] Figure 5 This is a structural schematic diagram from another perspective of the present invention;
[0023] Figure 6 for Figure 5 Enlarged view of point A in the middle.
[0024] In the diagram: 1. Manhole cover base; 2. Manhole cover; 21. Moving cavity; 22. Drain outlet; 23. Moving groove; 3. Sealing mechanism; 31. First fixing block; 32. Second fixing block; 33. Sealing block; 34. Drain hole; 35. Honeycomb hole; 36. First return spring; 37. Connecting rod; 38. Limiting block; 4. Drive mechanism; 41. Bracket; 42. Water collection trough; 43. First connecting seat; 44. Second return spring; 45. Second connecting seat; 46. Connecting hole. Detailed Implementation
[0025] 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. Example
[0026] A type of manhole cover for municipal pipelines, reference Figures 1-6The system includes a manhole cover base 1 and a manhole cover 2 that is movably embedded in the manhole cover base 1. The manhole cover 2 has several groups of evenly arranged drainage outlets 22. Each group of drainage outlets 22 includes several evenly arranged drainage outlets 22. The effect achieved by the above components is that when there is too much rainwater, it can flow into the sewer through the drainage outlets 22.
[0027] like Figures 1-6 As shown in this embodiment: a movable cavity 21 is provided inside the manhole cover 2, and a sealing mechanism 3 is slidably connected inside the manhole cover 2. The sealing mechanism 3 is used to seal and unclog the drainage outlet 22.
[0028] like Figures 1-6 As shown in this embodiment: the sealing mechanism 3 includes a first fixing block 31 and a second fixing block 32. The first fixing block 31 and the second fixing block 32 are of the same length and are arranged in parallel. A plurality of sealing blocks 33 are fixedly connected between the first fixing block 31 and the second fixing block 32. The number of sealing blocks 33 is the same as and corresponds to the number of groups of drain outlets 22. The first fixing block 31 and the second fixing block 32 are slidably connected in the moving cavity 21. The effect achieved by the above components is that the first fixing block 31 and the second fixing block 32 are of the same length and are parallel, which facilitates the stable fixing of the sealing blocks 33. The number of sealing blocks 33 is the same as and corresponds to the number of groups of drain outlets 22, which can seal the drain outlets 22 when there is no rain or when there is little rain.
[0029] like Figures 1-6 As shown in this embodiment: a plurality of drainage holes 34 are evenly and intermittently provided on the sealing block 33. The drainage holes 34 are matched with the drainage outlet 22. The plurality of drainage outlets 22 correspond to the drainage outlet 22 at the same time, and are completely misaligned with the drainage outlet 22. When the area between the plurality of drainage holes 34 corresponds to the drainage outlet 22, the drainage outlet 22 is blocked. When the plurality of drainage holes 34 correspond to the drainage outlet 22, the drainage outlet 22 is opened.
[0030] like Figures 1-6 As shown in this embodiment: a plurality of honeycomb holes 35 are provided in the area between a plurality of drainage holes 34; the effect achieved by the above components is that when the area between a plurality of drainage holes 34 corresponds to the drainage outlet 22, the drainage outlet 22 is blocked. The honeycomb holes 35 are set in this area, which can cope with the situation of low rainfall. When the rainfall is low, water will not accumulate because the drainage outlet 22 is completely blocked.
[0031] like Figures 1-6As shown in this embodiment: the first fixing block 31, the second fixing block 32, and the sealing block 33 are all slidably connected in the moving cavity 21. Several sets of first return springs 36 are provided on the opposite sides of the first fixing block 31 and the second fixing block 32. The other end of the first return spring 36 is fixedly connected to the side wall of the moving cavity 21. The effect achieved by the above components is that when the first fixing block 31, the second fixing block 32, and the sealing block 33 move to one side along the moving cavity 21, the two sets of first return springs 36 connected to the first fixing block 31 and the second fixing block 32, one set of which extends and the other set of which compresses, will exert a restoring force on the first fixing block 31 and the second fixing block 32 in the opposite direction of movement. The two sets of first return springs 36 work together so that the first fixing block 31 and the second fixing block 32 jointly obtain a restoring force.
[0032] like Figures 1-6 As shown in this embodiment: a driving mechanism 4 is provided below the manhole cover 2. The driving mechanism 4 includes a bracket 41 fixedly installed on one side of the bottom surface of the manhole cover 2. The bracket 41 is located directly below the first fixing block 31 or the second fixing block 32. A water collection tank 42 is rotatably connected to the bracket 41. The water collection tank 42 is located directly below the manhole cover 2 and is used to collect water flowing in through the drain outlet 22. The effect achieved by the above components is that the water flowing through the drain outlet 22 will enter the water collection tank 42. When there is a lot of water in the water collection tank 42, it will rotate along the bracket 41.
[0033] like Figures 1-6 As shown in this embodiment: a connecting rod 37 is fixedly connected to the bottom surface of the first fixing block 31 or the second fixing block 32. The connecting rod 37 extends out of the manhole cover 2. A second connecting seat 45 is fixedly provided on the end face of the water collection tank 42. A connecting hole 46 is provided on the second connecting seat 45. The free end of the connecting rod 37 passes through the connecting hole 46. The effect achieved by the above components is that: when the water collection tank 42 rotates along the bracket 41, it will drive the second connecting seat 45 to move together. The second connecting seat 45 will drive the connecting rod 37 in the connecting hole 46 to move. The connecting rod 37 drives the first fixing block 31 or the second fixing block 32 to move to one side along the moving cavity 21, so as to realize the correspondence between the drainage hole 34 and the drainage outlet 22, accelerate the drainage of rainwater, eliminate the need to manually open the manhole cover for drainage work, eliminate the need to find the location of the manhole cover, and reduce the safety hazards to vehicles traveling on the road.
[0034] like Figures 1-6As shown in this embodiment: the bottom surface of the water collection tank 42 is also provided with a drainage channel; the effect achieved by the above components is: when the rain is light, rainwater flows back into the water collection tank 42 through the honeycomb holes 35. If the water collection tank 42 does not have a drainage channel, then even though the rain is light, as time goes by, the water in the water collection tank 42 will increase, which will also cause the first fixed block 31 or the second fixed block 32 to move to one side along the moving cavity 21, so that the drainage hole 34 corresponds to the drainage outlet 22. This is something to be avoided. Therefore, a drainage channel needs to be set on the bottom surface of the water collection tank 42. When the rain is light, the water in the water collection tank 42 accumulates slowly and can be discharged in time without affecting the connecting rod 37. The water collection tank 42 needs a process to rotate along the bracket 41. Therefore, the degree of correspondence between the drainage hole 34 and the drainage outlet 22 is different in different positions, and the drainage speed is also different. Therefore, this device can flexibly change the drainage speed and can adapt to various weather conditions.
[0035] like Figures 1-6 As shown in this embodiment: a first connecting seat 43 is fixedly installed on two sides of the water collection tank 42, and a second return spring 44 is fixedly connected between the first connecting seat 43 and the bracket 41; the effect achieved by the above components is that the first connecting seat 43 and the second return spring 44 can stretch the second return spring 44 during the rotation of the water collection tank 42 along the bracket 41, and when the water volume in the water collection tank 42 decreases, it can drive the water collection tank 42 to return to the initial position.
[0036] like Figures 1-6 As shown in this embodiment: the connecting hole 46 is larger than the cross-section of the connecting rod 37, and a limiting block 38 is fixedly provided at the free end of the connecting rod 37. The length of the limiting block 38 is greater than the diameter of the connecting hole 46. The effect achieved by the above components is that the setting of the limiting block 38 can prevent the connecting rod 37 from disengaging from the connecting hole 46; the connecting hole 46 is larger than the cross-section of the connecting rod 37, which can prevent the connecting rod 37 and the second connecting seat 45 from getting stuck.
[0037] like Figures 1-6 As shown in this embodiment: a movable groove 23 is provided on the lower side of the manhole cover 2, and the connecting rod 37 is located in the movable groove 23 and moves along the movable groove 23; the effect achieved by the above components is that the movable groove 23 facilitates the movement of the connecting rod 37 with the drive of the second connecting seat 45.
[0038] The working principle of this utility model is as follows: In the initial state, the area between several drainage holes 34 corresponds to the drainage outlet 22, and the honeycomb holes 35 are located inside the drainage outlet 22; when it does not rain, or the rainfall is light, rainwater flows into the water collection trough 42 through the honeycomb holes 35, and is then discharged by the drainage channel at the bottom of the water collection trough 42; when it rains heavily, rainwater flows into the water collection trough 42 through the honeycomb holes 35, and the drainage channel at the bottom of the water collection trough 42 cannot discharge it in time, so the water flow in the water collection trough 42 increases sharply, and the water collection trough 42 rotates along the support bracket 41. At this time, the water collection trough 42 drives the second connecting seat 45 to move together, and the second connecting seat 45 drives the connecting rod 37 to move, connecting... The connecting rod 37 drives the first fixing block 31 or the second fixing block 32 to move to one side along the moving cavity 21, and compresses or stretches the first return spring 36. As the sealing block 33 moves, the drainage hole 34 and the drainage outlet 22 slowly align. A large amount of rainwater flows through the drainage hole 34 and the drainage outlet 22 into the sewer to prevent water accumulation on the road. At the same time, the second return spring 44 is in a stretched state. When the rain stops, the water in the water collection tank 42 is discharged by the drainage channel. The second return spring 44 drives the water collection tank 42 to reset. The first return spring 36 drives the first fixing block 31, the second fixing block 32 and the sealing block 33 to reset. The honeycomb hole 35 returns to the drainage outlet 22.
[0039] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A manhole cover for municipal networks, comprising a cover seat (1) and a cover (2) which is movably embedded in the cover seat (1), characterized in that: The well lid (2) is provided with a plurality of groups of uniformly arranged drainage openings (22), each group of drainage openings (22) comprises a plurality of uniformly arranged drainage openings (22), and the well lid (2) is slidably connected with a plugging mechanism (3), which is used for plugging and conducting the drainage openings (22); The plugging mechanism (3) comprises a first fixed block (31) and a second fixed block (32), a plurality of plugging blocks (33) are fixedly connected between the first fixed block (31) and the second fixed block (32), a plurality of drainage holes (34) are uniformly and intermittently arranged on the plugging blocks (33), the drainage holes (34) are matched with the drainage openings (22), when the areas between a plurality of drainage holes (34) correspond to the drainage openings (22), the drainage openings (22) are plugged, and when a plurality of drainage holes (34) correspond to the drainage openings (22), the drainage openings (22) are conducted.
2. A manhole cover for a municipal pipe network according to claim 1, characterised in that: The well lid (2) is provided with a moving cavity (21), the first fixed block (31) and the second fixed block (32) are parallel and have the same length, the number of the plugging blocks (33) is the same as and corresponds to the number of groups of the drainage openings (22), and a plurality of drainage openings (22) correspond to the drainage openings (22) at the same time and are completely misaligned with the drainage openings (22).
3. A cover for a municipal utility according to claim 2, characterized in that: A plurality of groups of honeycomb holes (35) are arranged in the areas between a plurality of drainage holes (34), the first fixed block (31), the second fixed block (32) and the plugging blocks (33) are slidably connected in the moving cavity (21), a plurality of groups of first return springs (36) are arranged on the opposite sides of the first fixed block (31) and the second fixed block (32), and the other ends of the first return springs (36) are fixedly connected with the side walls of the moving cavity (21).
4. A cover for a municipal utility according to claim 3, characterized in that: A driving mechanism (4) is arranged below the well lid (2), the driving mechanism (4) comprises a support (41) fixedly installed on one side of the bottom surface of the well lid (2), the support (41) is located directly below the first fixed block (31) or the second fixed block (32), a water collecting tank (42) is rotatably connected to the support (41), the water collecting tank (42) is located directly below the well lid (2) and is used for receiving water flowing through the drainage openings (22), first connecting seats (43) are fixedly installed on the two side surfaces of the water collecting tank (42), and a second return spring (44) is fixedly connected between the first connecting seat (43) and the support (41).
5. A cover for a municipal utility according to claim 4, characterized in that: A connecting rod (37) is fixedly connected to the bottom surface of the first fixed block (31) or the second fixed block (32), the connecting rod (37) extends out of the well lid (2), a second connecting seat (45) is fixedly arranged on the end surface of the water collecting tank (42), a connecting hole (46) is arranged in the second connecting seat (45), the free end of the connecting rod (37) penetrates through the connecting hole (46), and the connecting hole (46) is larger than the cross section of the connecting rod (37).
6. A cover for a municipal utility according to claim 5, characterized in that: A limiting block (38) is fixedly arranged at the free end of the connecting rod (37), and the length of the limiting block (38) is greater than the diameter of the connecting hole (46).
7. A cover for a municipal utility according to claim 6, characterized in that: The well lid (2) is provided with a moving groove (23) on the lower side, the connecting rod (37) is located in the moving groove (23) and moves along the moving groove (23).