A lightweight and high-strength ductile iron manhole cover

Abstract

The utility model relates to the technical field of manhole covers, specifically a lightweight high-strength ductile iron manhole cover, including a mounting seat and an adjusting device. The surface of the mounting seat is rotatably connected to a cover body, and the adjusting device is arranged on the surface of the cover body. The adjusting device includes a sliding column, and there are three sliding columns. The three sliding columns are respectively fixedly connected to the inner surface of the cover body, and the surface of the sliding column is slidably connected to a baffle. The surface of the sliding column is sleeved with a spring, and the two ends of the spring are respectively fixedly connected to the surfaces of the baffle and the sliding column. A water inlet hole is provided on one side of the cover body close to the baffle. The utility model can automatically adjust according to different rainfall amounts by arranging the adjusting device. The small hole is used to let rainwater enter during light rain, and the hole is automatically expanded during heavy rain to ensure rapid drainage, which greatly improves the adaptability and flexibility of the drainage system. No additional manual operation or energy drive is required for adjustment, and it automatically adapts to different situations, which is more energy-saving and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole covers, in particular to a lightweight high-strength ductile iron manhole cover. Background Art

[0002] Ductile manhole cover is a manhole cover made of ductile iron. It has high resistance to compression, bending and impact. It can withstand large loads, is sturdy and durable, is not easy to break when impacted by external forces, and has a certain resistance to deformation. Generally, in the production process, in order to reduce the weight of ductile manhole cover, different materials or structural combinations are used. The outer layer is ductile iron, and the inner layer uses lighter materials to share the force and reduce the overall weight, so as to achieve a certain lightweight design.

[0003] Ductile iron manhole covers are widely used in various public areas such as urban roads, squares, and communities to provide protection for underground facilities and facilitate maintenance.

[0004] The inventor discovered in his daily work that during the use of existing lightweight and high-strength ductile iron manhole covers, due to the fixed size of the water inlet holes of the ductile iron manhole covers, rainwater accumulated on the road cannot be quickly drained away from the water inlet during heavy rain, resulting in serious water accumulation. The manhole covers need to be opened manually for drainage, which is prone to dangerous situations. As a result, the existing ductile iron manhole covers are not easy to automatically adjust the size of the water inlet according to the rainfall. Utility Model Content

[0005] The utility model aims to solve the shortcoming in the prior art that the existing ductile iron manhole cover is not convenient for automatically adjusting the size of the water inlet according to the rainfall, and proposes a lightweight high-strength ductile iron manhole cover.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a lightweight high-strength ductile iron manhole cover, comprising a mounting seat and an adjusting device, the surface of the mounting seat is rotatably connected to a cover body, the adjusting device is arranged on the surface of the cover body, the adjusting device comprises a sliding column, the number of the sliding columns is three, the three sliding columns are respectively fixedly connected to the inner surface of the cover body, the surface of the sliding column is slidably connected to a baffle, the surface of the sliding column is sleeved with a spring, the two ends of the spring are respectively fixedly connected to the surface of the baffle and the sliding column, a water inlet hole is opened on the side of the cover body close to the baffle, and the inner wall of the water inlet hole is fixedly connected There is a filter, and the surface of the baffle is provided with drainage holes. The surfaces of the three baffles are provided with auxiliary components. Through the above components, when a small amount of rainwater flows in through the water inlet hole, the rainwater can be discharged into the well through the drainage holes on the surface of the baffle. When it rains heavily, a large amount of rainwater enters the water inlet hole, and the filter can filter impurities. The pressure of the rainwater will squeeze the baffle to move on the sliding column, so that the baffle loses its cover on the water inlet hole and increases the water intake. When it rains heavily, the rainwater pressure continues to increase, pushing the baffle to the farthest point. The baffle can drive the auxiliary component to open and assist in drainage, thereby draining the accumulated water more effectively.

[0007] Preferably, the auxiliary component includes a connecting piece, and there are three connecting pieces. The three connecting pieces are fixedly connected to the surfaces of three baffles respectively. A plurality of sealing rods are fixedly connected to the surfaces of the baffles. A plurality of auxiliary holes are opened on the surface of the cover body. The sealing rods are plugged into the inner walls of the auxiliary holes. Through the above components, when the sealing rods are inserted in the auxiliary holes, sealing can be performed. When the baffle moves to the maximum position, the baffle can drive the sealing rods to lose the restraint on the auxiliary holes through the connecting piece, and then the auxiliary holes cooperate to drain water, thereby improving the drainage efficiency.

[0008] Preferably, the auxiliary hole gradually expands from the outside to the inside, presenting a trumpet-like shape. Through the above components, the trumpet-shaped auxiliary hole can more effectively guide the water flow to enter and enhance the drainage efficiency.

[0009] Preferably, a safety device is provided on the surface of the cover body, and the safety device includes an end cover, an operating hole is opened on the surface of the cover body, the end cover is located in the operating hole, a threaded end is fixedly connected to the surface of the end cover, a connecting ring is fixedly connected to the inner wall of the operating hole, and the threaded end is threadedly connected to the inner wall of the connecting ring. Through the above components, when some detection instruments or sensors need to be placed in the well, there is no need to open the cover body, and only the end cover needs to be rotated. After the threaded end loses the connection with the connecting ring, the end cover can be removed and the instrument can be inserted into the well through the operating hole, thereby reducing the risk of opening the cover body completely, which may easily lead to danger.

[0010] Preferably, the lower surface of the threaded end is rotatably connected to a rotating ring, one end of the rotating ring is fixedly connected to a mounting rope, and the other end of the safety rope is fixedly connected to the inner side of the cover body. Through the above components, the safety rope can protect the end cover to prevent criminals from removing the end cover and stealing it.

[0011] Preferably, a concave groove is provided on the upper surface of the end cover, and a handle is rotatably connected to the inner wall of the concave groove. By rotating the handle through the above components, the handle can drive the end cover to rotate, thereby improving overall usability.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, by setting the regulating device, when a small amount of rainwater flows in through the water inlet hole, the rainwater can be discharged into the well through the drainage holes on the surface of the baffle plate; when it rains heavily, a large amount of rainwater enters the water inlet hole, the filter element can filter impurities, and the pressure of the rainwater will squeeze the baffle plate to move on the sliding column, so that the baffle plate loses its shielding of the water inlet hole, thereby increasing the water intake; when it rains heavily, the rainwater pressure continues to increase, pushing the baffle plate to the farthest point, and the baffle plate can drive the auxiliary component to open to assist in drainage, thereby draining the accumulated water more effectively; by setting the regulating device, it can be automatically adjusted according to the amount of rainfall; in light rain, the small holes are used to let rainwater enter; in heavy rain, the holes are automatically expanded to ensure rapid drainage, thereby greatly improving the adaptability and flexibility of the drainage system; no additional manual operation or energy drive is required for adjustment; it automatically adapts to different situations, and is more energy-saving and efficient.

[0014] 2. In the utility model, by setting a safety device, by opening the end cover, some detection instruments or sensors can be placed into the well through the operation hole without opening the cover completely, thereby improving the overall safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional structural schematic diagram of a lightweight high-strength ductile iron manhole cover is proposed for the utility model;

[0016] Figure 2 A schematic diagram of a partial upward structural view of a lightweight high-strength ductile iron manhole cover is provided for the utility model;

[0017] Figure 3 The utility model proposes a lightweight high-strength ductile iron manhole cover Figure 2 Schematic diagram of some structures;

[0018] Figure 4 A schematic diagram of the structure of an auxiliary component of a lightweight high-strength ductile iron manhole cover is provided for the utility model;

[0019] Figure 5 The utility model provides a partial structural schematic diagram of a safety device for a lightweight high-strength ductile iron manhole cover.

[0020] Legend:

[0021] 1. Mounting seat; 2. Cover body; 3. Adjustment device; 31. Filter element; 32. Baffle; 33. Auxiliary component; 331. Connector; 332. Sealing rod; 333. Auxiliary hole; 34. Drain hole; 35. Sliding column; 36. Spring; 37. Water inlet hole; 4. Safety device; 41. End cover; 42. Handle; 43. Threaded end; 44. Connecting ring; 45. Rotating ring; 46. Safety rope; 47. Operating hole. DETAILED DESCRIPTION

[0022] See also Figure 1-5 The utility model provides a technical solution: a lightweight high-strength ductile iron manhole cover, comprising a mounting seat 1 and an adjusting device 3, the surface of the mounting seat 1 is rotatably connected to a cover body 2, the adjusting device 3 is arranged on the surface of the cover body 2, and a safety device 4 is arranged on the surface of the cover body 2.

[0023] The specific settings and functions of the adjustment device 3 and the safety device 4 are described in detail below.

[0024] Specifically, the regulating device 3 includes a sliding column 35, and there are three sliding columns 35. The three sliding columns 35 are respectively fixedly connected to the inner surface of the cover body 2. The surface of the sliding column 35 is slidably connected with a baffle 32. The surface of the sliding column 35 is sleeved with a spring 36. The two ends of the spring 36 are respectively fixedly connected to the surfaces of the baffle 32 and the sliding column 35. A water inlet hole 37 is provided on one side of the cover body 2 close to the baffle 32. The inner wall of the water inlet hole 37 is fixedly connected with a filter element 31. The surface of the baffle 32 is provided with a drainage hole 34. The surfaces of the three baffles 32 are provided with auxiliary components 33.

[0025] In this embodiment: when a small amount of rainwater flows in through the water inlet hole 37, the rainwater can be discharged into the well through the drainage hole 34 on the surface of the baffle 32. When it rains heavily, a large amount of rainwater enters the water inlet hole 37, and the filter element 31 can filter impurities. The pressure of the rainwater will squeeze the baffle 32 to move on the sliding column 35, so that the baffle 32 loses its cover on the water inlet hole 37, increasing the water intake. When it rains heavily, the rainwater pressure continues to increase, pushing the baffle 32 to the farthest point, and the baffle 32 can drive the auxiliary component 33 to open to assist in drainage, thereby draining the accumulated water more effectively.

[0026] Specifically, the auxiliary component 33 includes three connecting parts 331, and the three connecting parts 331 are fixedly connected to the surfaces of the three baffles 32 respectively. A plurality of sealing rods 332 are fixedly connected to the surface of the baffle 32. A plurality of auxiliary holes 333 are opened on the surface of the cover body 2, and the sealing rods 332 are plugged into the inner walls of the auxiliary holes 333.

[0027] In this embodiment: when the sealing rod 332 is inserted into the auxiliary hole 333, sealing can be performed. When the baffle 32 moves to the maximum position, the baffle 32 can drive the sealing rod 332 to lose the restraint on the auxiliary hole 333 through the connecting piece 331, and then the auxiliary hole 333 cooperates to drain water, thereby improving the drainage efficiency.

[0028] Specifically, the auxiliary hole 333 gradually expands from the outside to the inside, presenting a trumpet-like shape. The trumpet-shaped auxiliary hole 333 can more effectively guide the water flow to enter and enhance the drainage efficiency.

[0029] Specifically, the safety device 4 includes an end cover 41, an operating hole 47 is opened on the surface of the cover body 2, the end cover 41 is located in the operating hole 47, a threaded end 43 is fixedly connected to the surface of the end cover 41, a connecting ring 44 is fixedly connected to the inner wall of the operating hole 47, and the threaded end 43 is threadedly connected to the inner wall of the connecting ring 44.

[0030] In this embodiment: when it is necessary to place some detection instruments or sensors into the shaft, there is no need to open the cover body 2. It is only necessary to rotate the end cover 41. After the threaded end 43 loses the connection with the connecting ring 44, the end cover 41 can be removed and the instrument can be inserted into the shaft through the operating hole 47, thereby reducing the risk of opening the cover body 2 completely, which may easily lead to dangerous situations.

[0031] Specifically, a rotating ring 45 is rotatably connected to the lower surface of the threaded end 43 , one end of the rotating ring 45 is fixedly connected to a mounting rope, and the other end of the safety rope 46 is fixedly connected to the inner side of the cover body 2 .

[0032] In this embodiment, the safety rope 46 can protect the end cover 41 to prevent criminals from removing the end cover 41 and stealing it.

[0033] Specifically, a concave groove is formed on the upper surface of the end cover 41, and a handle 42 is rotatably connected to the inner wall of the concave groove. By rotating the handle 42, the handle 42 can drive the end cover 41 to rotate, thereby improving the overall usability.

[0034] Working principle: By setting the regulating device 3, when a small amount of rainwater flows in through the water inlet hole 37, the rainwater can be discharged into the well through the drainage hole 34 on the surface of the baffle 32. When it rains heavily, a large amount of rainwater enters the water inlet hole 37, and the filter 31 can filter impurities. The pressure of the rainwater will squeeze the baffle 32 to move on the slide column 35, and the spring 36 will be stressed, so that the baffle 32 loses its shielding of the water inlet hole 37, increasing the water intake. When it rains heavily, the rainwater pressure continues to increase, pushing the baffle 32 to the farthest point, and the baffle 32 can The auxiliary component 33 is driven to open, and the baffle 32 can drive the sealing rod 332 to lose the restraint on the auxiliary hole 333 through the connecting piece 331. Then the trumpet-shaped auxiliary hole 333 cooperates to drain water, thereby improving the drainage efficiency. By setting the adjustment device 3, it can be automatically adjusted according to the amount of rainfall. In light rain, the small holes are used to let rainwater enter. In heavy rain, the holes are automatically expanded to ensure rapid drainage, which greatly improves the adaptability and flexibility of the drainage system. No additional manual operation or energy drive is required for adjustment, and it automatically adapts to different situations, making it more energy-saving and efficient.

[0035] By setting the safety device 4, turning the handle 42, and then driving the end cover 41 to rotate through the handle 42, after the threaded end 43 loses the connection with the connecting ring 44, the end cover 41 can be removed, and the safety rope 46 can protect the end cover 41. Some detection instruments or sensors can be placed through the operating hole 47. When placed in the well, there is no need to open the cover body 2 completely, thereby improving the overall safety.

Claims

1. A lightweight high-strength ductile iron manhole cover, comprising a mounting seat (1) and an adjusting device (3), characterized in that: The surface of the mounting seat (1) is rotatably connected to the cover body (2); the adjusting device (3) is arranged on the surface of the cover body (2); the adjusting device (3) comprises a sliding column (35); there are three sliding columns (35); the three sliding columns (35) are respectively fixedly connected to the inner surface of the cover body (2); the surface of the sliding column (35) is slidably connected to a baffle (32); a spring (36) is sleeved on the surface of the sliding column (35); the two ends of the spring (36) are respectively fixedly connected to the surfaces of the baffle (32) and the sliding column (35); a water inlet hole (37) is provided on one side of the cover body (2) close to the baffle (32); a filter element (31) is fixedly connected to the inner wall of the water inlet hole (37); a drainage hole (34) is provided on the surface of the baffle (32); and auxiliary components (33) are provided on the surfaces of the three baffles (32).

2. A lightweight high-strength ductile iron manhole cover according to claim 1, characterized in that: The auxiliary component (33) comprises a connecting piece (331), wherein there are three connecting pieces (331), and the three connecting pieces (331) are respectively fixedly connected to the surfaces of three baffles (32), and a plurality of sealing rods (332) are fixedly connected to the surfaces of the baffles (32). A plurality of auxiliary holes (333) are formed on the surface of the cover body (2), and the sealing rods (332) are plugged into the inner walls of the auxiliary holes (333).

3. A lightweight high-strength ductile iron manhole cover according to claim 2, characterized in that: The auxiliary hole (333) gradually expands from the outside to the inside, presenting a trumpet-like shape.

4. The lightweight high-strength ductile iron manhole cover according to claim 1 is characterized in that: A safety device (4) is provided on the surface of the cover body (2), and the safety device (4) comprises an end cover (41). An operating hole (47) is provided on the surface of the cover body (2), and the end cover (41) is located in the operating hole (47). A threaded end (43) is fixedly connected to the surface of the end cover (41), and a connecting ring (44) is fixedly connected to the inner wall of the operating hole (47), and the threaded end (43) is threadedly connected to the inner wall of the connecting ring (44).

5. The lightweight high-strength ductile iron manhole cover according to claim 4 is characterized in that: The lower surface of the threaded end (43) is rotatably connected to a rotating ring (45), one end of the rotating ring (45) is fixedly connected to a safety rope, and the other end of the safety rope (46) is fixedly connected to the inner side of the cover body (2).

6. The lightweight high-strength ductile iron manhole cover according to claim 4 is characterized in that: A concave groove is formed on the upper surface of the end cover (41), and a handle (42) is rotatably connected to the inner wall of the concave groove.

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