A ground well lid

Abstract

The utility model relates to the field of underground facility protection, concretely relates to a ground well well lid, including well lid main part, openable side door and movable connecting mechanism, the well lid main part includes cavity structure, the cavity structure includes top and the side wall around top, and one side and lower part of cavity structure are open structure, the openable side door movable connection in one side of well lid main part, and under the closed state, with the top and side wall of well lid main part together enclose, form the surrounding space of covering ground well well mouth, the movable connecting mechanism sliding support or rotation support well lid main part, when the side door is in the open state, well lid main part is configured as, through movable connecting mechanism can switch in the position of opening ground well well mouth and the position of closing ground well well mouth, the utility model provides ground well well lid waterproof effect is good and is convenient for open and close operation.

Description

Technical Field

[0001] This utility model relates to the field of underground facility protection, specifically to a manhole cover. Background Technology

[0002] Traditional manhole covers are mostly designed with segmented steel plates or monolithic concrete plates, which have significant drawbacks in practical applications. While segmented steel plates are easy to disassemble, gaps remain at the joints, allowing rainwater to easily seep into the manhole. This results in instruments and valves being constantly submerged in water, accelerating corrosion of metal components and equipment failure. Concrete plates, while offering some sealing, are too heavy, requiring mechanical tools for opening and closing, making manual operation time-consuming and labor-intensive, and unsuitable for frequent maintenance. Furthermore, existing manhole covers generally face a trade-off between lightweight design and structural strength. The weight of the metal plates makes opening and closing the manhole cover difficult, while simply thinning the material, although improving ease of opening and closing, can easily lead to pressure deformation.

[0003] Therefore, how to improve the waterproofing effect of manhole covers on manhole openings and facilitate the opening and closing of manhole covers is the technical problem that needs to be solved in this case. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a well cover with good waterproof effect and easy opening and closing operation.

[0005] To achieve the above-mentioned objectives and other related objectives, this utility model provides: 1. A manhole cover, characterized in that it comprises:

[0006] The manhole cover body includes a cavity structure, the cavity structure including a top and a side wall surrounding the top, and one side and the lower part of the cavity structure are open structures;

[0007] An openable and closable side door is movably connected to one side of the manhole cover body. When closed, it, together with the top and side walls of the manhole cover body, encloses the space covering the manhole opening.

[0008] The movable connecting mechanism provides sliding or rotating support for the manhole cover body. When the side door is in the open state, the manhole cover body is configured to switch between the open and closed manhole positions via the movable connecting mechanism.

[0009] In one embodiment of the present invention, the movable connection mechanism includes a sliding component or a rotating component. The sliding component includes a sliding rail and a sliding member mating structure, and the rotating component includes a hinge or a pivot structure.

[0010] In one embodiment of the present invention, a locking assembly is provided between the side door and the manhole cover body, the locking assembly being used to fix the side door to the manhole cover body.

[0011] In one embodiment of the present invention, the inner wall of the enclosed space extends to the outer wall of the wellhead and is abutted against the outer wall of the wellhead and / or against the top wall of the wellhead.

[0012] In one embodiment of this utility model, a sealing structure is provided between the inner wall of the enclosed space and the outer wall of the wellhead, and the sealing structure is an elastic sealing strip or a rubber gasket.

[0013] In one embodiment of the present invention, the manhole cover further includes a support component for supporting the main body of the manhole cover.

[0014] In one embodiment of this utility model, the side door is detachably connected to or hinged to the manhole cover body.

[0015] In one embodiment of this utility model, the main body of the manhole cover is an integral metal plate or a foldable structure composed of multiple metal plates connected by hinges.

[0016] In one embodiment of the present invention, the manhole cover body includes a rust-proof outer shell and an internal reinforcing frame disposed within the rust-proof outer shell, wherein the internal reinforcing frame is a mesh-like or rib-like structure.

[0017] In one embodiment of this utility model, the shape of the manhole cover body is square, circular or polygonal, and the shape of the side door matches the corresponding side of the manhole cover body.

[0018] In summary, the manhole cover of this utility model provides waterproofing for the manhole opening and is easy to open and close. On the one hand, the enclosed space formed by the main body of the manhole cover and the side door effectively prevents rainwater from seeping into the well, reducing corrosion and malfunctions of instruments, valves, and other equipment caused by water immersion, and extending the service life of the equipment. On the other hand, the movable connecting mechanism makes the opening and closing of the manhole cover more convenient. The movable connecting mechanism supports the main body of the manhole cover, and when the side door is opened, the manhole opening can be opened by rotating or pushing the main body of the manhole cover, without the need for heavy mechanical tools. Manual operation is also easier, which can well meet the needs of frequent maintenance, and to a certain extent balances the contradiction between lightweight and structural strength, ensuring the structural stability of the manhole cover while improving the convenience of opening and closing. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a well cover fitting onto the well opening in one embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the wellhead structure in one embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the main structure of the manhole cover in one embodiment of the present utility model;

[0023] Figure 4 This is a schematic diagram of the overall structure of a manhole cover in one embodiment of the present invention, wherein the side door is in a closed state;

[0024] Figure 5 This is a schematic diagram of a manhole cover installed on the side of a manhole opening in another embodiment of the present invention, wherein the side door is in the open state;

[0025] Figure 6 for Figure 5 A schematic diagram of the structure of a manhole cover fitting onto the manhole opening.

[0026] Component labeling description: Wellhead 100, Ground surface 200, Well cover body 1, Cavity structure 11, Top 111, Side wall 112, Side door 2, Movable connection mechanism 3, Sliding assembly 31, Slide rail 311, Sliding piece 312, Rotating assembly 32, Locking assembly 4, Support assembly 5, Support base 51, Handle 6. Detailed Implementation

[0027] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of this utility model is for describing specific implementation schemes and not for limiting the scope of protection of this utility model. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0028] Please see Figures 1 to 6 It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0029] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise stated in this invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this invention, as well as the prior art known to those skilled in the art and the description of this invention, may be implemented using any prior art methods, devices, and materials similar to or equivalent to those described, used, or made of materials in the embodiments of this invention.

[0030] Please see Figure 1-4 or Figure 5-6 This utility model provides a manhole cover, including a manhole cover body 1, an openable and closable side door 2, and a movable connecting mechanism 3;

[0031] The manhole cover body 1 includes a cavity structure 11, which includes a top 111 and a side wall 112 surrounding the top 111. One side and the lower part of the cavity structure 11 are open. The closable side door 2 is movably connected to one side of the manhole cover body 1. In the closed state, it, together with the top 111 and the side wall 112 of the manhole cover body 1, encloses or covers the manhole opening 100. The movable connecting mechanism 3 slides or rotates to support the manhole cover body 1. When the side door 2 is open, the manhole cover body 1 is configured to switch between the open and closed positions of the manhole opening 100 via the movable connecting mechanism 3. When the side door 2 is open, the manhole cover body 1 can be moved away from the manhole opening 100 by manual operation or a driving device, thereby exposing the manhole opening 100.

[0032] It should be noted that, for example, the manhole cover body 1 is cubic in shape, and has an internal cavity structure 11. This cavity structure 11 includes a top 111 and side walls 112 surrounding the top 111. Simultaneously, one side and the lower part of the cavity structure 11 are open structures, essentially a square box without a bottom or one side wall 112. The top 111 of the manhole cover body 1 is designed to distribute external loads (such as vehicle pressure). The area where the manhole cover body 1 and side door 1 can move requires sufficient space to avoid collisions. The remaining parts of the manhole cover can be flush with the ground. The side walls 112 extend vertically or obliquely, forming a semi-enclosed frame with the top 111 to enhance structural rigidity. The open structure on one side and the lower part allows the manhole cover body 1 to fit against the edge of the manhole opening 100 when in the closed position, while also facilitating the movement of the side door 2 and the maintenance of internal equipment. The side door 2 is connected to the manhole cover body 1 via hinges, slide rails 311, or flexible connectors (such as folded canvas). When the side door 2 is closed, it forms a continuous closed interface with the top 111 and side wall 112, blocking the rainwater infiltration path and enclosing the space to cover the entire circumference of the manhole opening 100, avoiding the splicing gaps of traditional segmented cover plates. One end of the movable connecting mechanism 3 is connected to the manhole cover body 1, and the other end is connected to the manhole opening 100 or the ground 200. The sliding support can be pushed and pulled horizontally via slide rails 311 and rollers, and the rotating support can be opened and closed by hinges or pivots. After the side door 2 is opened, the manhole cover body 1 moves along a predetermined trajectory, and the operator only needs to apply a small pushing force to complete the position switching. In addition, the sliding support can also adopt gear and rack transmission to achieve precise displacement control; the rotating support can also be a multi-axis hinge, allowing the manhole cover body 1 to move along an arc trajectory.

[0033] This invention achieves the dual goals of waterproofing and convenient opening and closing through the synergistic effect of the cavity structure 11, side door 2, and movable connecting mechanism 3. The open side and lower part of the cavity structure 11 allow the manhole cover body 1 to align with the edge of the manhole opening 100. When the side door 2 is open, the manhole cover body 1 can be moved through the movable connecting mechanism 3, facilitating maintenance and other operations on the manhole. When the side door 2 is closed, a continuous sealing interface is formed through mechanical locking or elastic pressing, eliminating the risk of leakage from traditional splicing gaps and blocking the path of rainwater infiltration. The movable connecting mechanism 3 adjusts the traditional vertical lifting method of the manhole cover to a horizontal pushing or rotating motion, significantly reducing the operating torque. A single person can complete the opening and closing without relying on mechanical tools, solving the problem of heavy and difficult-to-move concrete covers. The combination of lightweight cavity structure 11 and reinforced frame reduces the overall weight while ensuring pressure resistance, making it suitable for high-frequency maintenance needs. In general, when the depth of rainwater on the ground is lower than the height of the well opening 100, a good waterproof effect can be achieved even without a strict seal between the well cover and the well opening 100.

[0034] Please see Figure 1-4 or Figure 5-6 As an optional embodiment of this case, the movable connection mechanism 3 includes a sliding component 31 or a rotating component 32. The sliding component 31 includes a cooperation structure between a slide rail 311 and a sliding member 312, and the rotating component 32 includes a hinge or a rotating shaft structure.

[0035] As an optional embodiment of this case, the slide rail 311 in the sliding assembly 31 is fixed to the well wall, and the sliding member 312 is fixed to the well cover body 1; the rotation axis of the hinge or rotating shaft structure is perpendicular to the plane where the well opening 100 is located.

[0036] Please see Figure 1 or Figure 5 As an optional embodiment of this case, the shape of the manhole cover body 1 is square, circular or polygonal, and the shape of the side door 2 matches the corresponding side of the manhole cover body 1.

[0037] Please see Figure 1-4 For example, the main body 1 of the manhole cover is square in shape, and the side door 2 is a plate structure on one side of the square-shaped main body 1 of the manhole cover; the movable connecting mechanism 3 is a sliding assembly 31, which includes a slide rail 311 and a sliding member 312. One of the slide rail 311 and the sliding member 312 is disposed on the main body 1 of the manhole cover, and the other is disposed on the manhole wall. The sliding member 312 can be a slider or a roller.

[0038] Furthermore, the slide rail 311 is disposed on the outer wall 112 and / or top 111 of the wellhead 100, and the sliding member 312 is disposed on the inner wall of the cavity structure 11.

[0039] Please see Figure 5-6 For example, the main body 1 of the manhole cover is circular, and the side door 2 is a semi-circular structure on one side of the circular main body 1 of the manhole cover; the movable connection mechanism 3 is a rotating hinge assembly, and the main body 1 of the manhole cover is supported by the rotating hinge assembly and rotatably connected to the wellhead 100 or the ground 200.

[0040] Please see Figure 4 As an optional embodiment of this case, a locking assembly 4 is provided between the side door 2 and the manhole cover body 1, and the locking assembly 4 is used to fix the side door 2 to the manhole cover body 1.

[0041] It should be noted that the function of the locking assembly 4 is to ensure a secure connection between the side door 2 and the manhole cover body 1, preventing the side door 2 from being opened accidentally. Various alternative implementation methods are possible. For example, the locking assembly 4 includes a ring fixed to the side door 2 and a hook fixed to the manhole cover body 1; when the hook engages with the ring, it restricts the movement of the side door 2. Alternatively, it could be a mechanical lock, such as a common bolt lock, where a bolt is inserted into a corresponding hole for fixation. It could also be an electromagnetic lock, using electromagnetic force to attract the side door 2 and the manhole cover body 1. A combination lock could also be used, unlocking after the user enters the correct password, increasing security. The locking assembly 4 uses different locking methods to tightly connect the side door 2 and the manhole cover body 1, preventing the side door 2 from opening during normal use, ensuring the airtightness of the enclosed space, and better preventing rainwater and debris from entering the manhole opening 100.

[0042] As an optional embodiment of this case, the inner wall of the enclosed space extends to the outer wall of the wellhead 100 and is abutted against the outer wall 112 of the wellhead 100 and / or against the top wall of the wellhead 100.

[0043] It should be noted that the enclosed space is formed by the manhole cover body 1 and the side door 2. Its inner wall extends to fit the side wall and / or top of the well opening 100, aiming to enhance the sealing between the manhole cover and the well opening 100. There are several alternative implementation methods. The inner wall of the enclosed space may only fit against the outer wall of the well opening 100, covering the outside of the well opening 100; it may only fit against the top wall of the well opening 100, covering the top and sides of the well opening 100; or it may fit against both the outer and top walls of the well opening 100 simultaneously, forming a more comprehensive seal. For the fitting method, flexible materials such as rubber strips can be used, which can better adapt to the shape of the well opening 100, providing cushioning and sealing; rigid materials such as metal plates can also be used, ensuring the stability of the fitting to a certain extent; or a tongue-and-groove fitting method can be used, allowing the inner wall to fit tightly against the well opening 100. In this case, by fitting the inner wall of the enclosed space to the outer wall and top wall of the well opening 100, the channels for rainwater and debris to enter the well are reduced. When the inner wall is tightly fitted to the well opening 100, external liquids and solids are difficult to seep into the well through the gaps at the joint, forming an effective barrier.

[0044] As an optional embodiment of this case, a sealing structure is provided between the inner wall of the enclosed space and the outer wall of the well opening 100. The sealing structure is an elastic sealing strip or a rubber gasket. For example, the sealing structure is an elastic sealing strip set on the edge of the well cover body 1, and the elastic sealing strip is pressed against the well opening 100 when the well cover is closed.

[0045] It should be noted that when the depth of rainwater at ground level 200 is higher than that at wellhead 100, if there is a gap between the inner wall of the enclosed space and the outer wall of the wellhead 100, rainwater may enter the wellhead 100 through this gap. Therefore, the fit between the inner wall of the enclosed space and the outer wall of the wellhead 100 needs to be sealed to eliminate assembly gaps. The purpose of the sealing structure is to compensate for dimensional deviations caused by construction errors or thermal expansion and contraction. The sealing structure is made of flexible materials with deformation recovery capabilities, such as corrugated silicone sealing strips, polyurethane sealing rings with flange designs, or foamed rubber pads with honeycomb microporous structures. These alternative solutions can adapt to deformation requirements under different working conditions through their own elasticity. When the inner wall of the enclosed space is relatively displaced from the wellhead 100, the seal undergoes reversible deformation under pressure. The extension and rebound characteristics of the sealing structure ensure that the sealing surface always maintains contact stress, thereby effectively offsetting the gap fluctuations caused by equipment vibration, foundation settlement or temperature changes. By physically blocking the liquid penetration path, a long-term seal is achieved.

[0046] Please see Figure 4 or Figure 5 As an optional embodiment of this case, the manhole cover further includes a support assembly 5 for supporting the manhole cover body 1. For example, the support assembly 5 includes a support leg and a support leg storage rack that can be stored at the bottom of the manhole cover body 1. The height of the support leg is adjusted by a telescopic mechanism. The side wall 112 of the manhole cover body 1 is provided with a support seat 51 so that the support leg can support the manhole cover body 1 through the support seat 51.

[0047] It should be noted that the support component 5 provides stable support for the manhole cover body 1, ensuring its normal use and reducing the risk of deformation and damage. The support component 5 can be, for example, a column-type support, which supports the manhole cover body 1 away from the movable connecting mechanism 3; it can also be a frame-type support, which uses a frame structure to distribute the weight of the manhole cover body 1; or it can be a triangular support, which uses the stability of a triangle to provide support for the manhole cover body 1; the support component 5 can be detachably connected or hinged to the manhole cover body 1, or the upper end of the support component 5 can be fixed or hinged to the manhole cover body 1, and the lower end of the support component 5 can be slidably set to the ground 200.

[0048] Please see Figure 4 As an optional embodiment of this case, the side door 2 is detachably connected to the manhole cover body 1 or is hinged to it.

[0049] As an optional embodiment of this case, the manhole cover body 1 is provided with a handle 6, so as to facilitate manual movement of the manhole cover body 1.

[0050] As an optional embodiment of this case, the manhole cover body 1 is an integral metal plate or a foldable structure composed of multiple metal plates connected by hinges.

[0051] It should be noted that, provided that the structural strength and sealing performance are ensured, the integral metal plate can be made of stainless steel stamped plate, ductile iron cast plate or titanium alloy forged plate. In addition to multi-section metal plates connected by hinges, gear slide rail telescopic plates are also feasible for foldable structures, but structural strength and sealing performance must be ensured.

[0052] As an optional embodiment of this case, the manhole cover body 1 includes a rust-proof outer shell and an internal reinforcing skeleton, wherein the internal reinforcing skeleton is a mesh-like or rib-like structure. It should be noted that the rust-proof outer shell prevents the manhole cover body 1 from being corroded, extending its service life; for example, the rust-proof outer shell is made of aluminum or galvanized iron. The internal reinforcing skeleton enhances the structural strength of the manhole cover body 1. The rust-proof outer shell and the internal reinforcing skeleton work together to improve the overall performance of the manhole cover body 1. For the internal reinforcing skeleton, the mesh-like structure can be a square mesh, a rhomboid mesh, or a hexagonal mesh; different mesh shapes can adapt to different stress conditions. The rib-like structure can be transverse ribs, longitudinal ribs, or crisscrossing ribs, all of which can serve to strengthen the structure.

[0053] Furthermore, the connection method between the movable connection mechanism 3 and the wellhead 100 or the ground surface 200 is to achieve fixation by bolt connection, flange connection, or concrete pouring.

[0054] Furthermore, the surface of the manhole cover body 1 is provided with an embedded electronic tag or QR code identification layer.

[0055] Furthermore, the outer surface of the manhole cover body 1 is coated with an epoxy anti-corrosion coating or a polyurethane anti-corrosion coating.

[0056] Furthermore, the inner edge of the side door 2 is provided with an elastic sealing strip, which is pressed against the manhole cover body 1 when the locking assembly 4 is engaged.

[0057] Furthermore, a guide slope is provided on the main body 1 of the manhole cover or the side door 2, and the inclination direction of the guide slope faces outward of the well opening 100. It should be noted that the inclination direction of the guide slope is not limited to the main body 1 of the manhole cover itself, but can also be integrated into the edge of the side door 2 or independently set on the water-retaining ring around the well opening 100. The slope configuration can be a straight slope, a stepped diversion channel or a curved guide wing, and the directional diversion of surface runoff can be achieved through the optimization and adjustment of the geometric shape.

[0058] In summary, this utility model effectively overcomes some practical problems in the prior art, thus having high utilization value and significance.

[0059] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A manhole cover, characterized in that, include: The manhole cover body includes a cavity structure, the cavity structure including a top and a side wall surrounding the top, and one side and the lower part of the cavity structure are open structures; An openable and closable side door is movably connected to one side of the manhole cover body. When the side door is closed, it, together with the top and side wall of the manhole cover body, encloses the space covering the manhole opening. The movable connecting mechanism provides sliding or rotating support for the manhole cover body. When the side door is in the open state, the manhole cover body is configured to switch between the open and closed manhole positions via the movable connecting mechanism.

2. The manhole cover according to claim 1, characterized in that, The movable connection mechanism includes a sliding component or a rotating component. The sliding component includes a sliding rail and a sliding element mating structure, and the rotating component includes a hinge or a pivot structure.

3. The manhole cover according to claim 1, characterized in that, A locking assembly is provided between the side door and the manhole cover body, the locking assembly being used to fix the side door to the manhole cover body.

4. The manhole cover according to claim 1, characterized in that, The inner wall of the enclosed space extends to the outer wall of the wellhead and is abutted against the outer wall of the wellhead and / or the top wall of the wellhead.

5. The manhole cover according to claim 1, characterized in that, A sealing structure is provided between the inner wall of the enclosed space and the outer wall of the wellhead, and the sealing structure is an elastic sealing strip or a rubber gasket.

6. The manhole cover according to claim 1, characterized in that, It also includes a support assembly for supporting the main body of the manhole cover.

7. The manhole cover according to claim 1, characterized in that, The side door is detachably connected to the main body of the manhole cover or is hinged.

8. The manhole cover according to claim 1, characterized in that, The main body of the manhole cover is an integral metal plate or a foldable structure made of multiple metal plates connected by hinges, and when the foldable structure forms the main body of the manhole cover, the metal plates are tightly fitted together.

9. The manhole cover according to claim 1, characterized in that, The manhole cover body includes a rust-proof outer shell and an internal reinforcing frame disposed within the rust-proof outer shell. The internal reinforcing frame is a mesh-like or ribbed structure.

10. The manhole cover according to claim 1, characterized in that, The shape of the main body of the manhole cover is square, round or polygonal, and the shape of the side door matches the corresponding side of the main body of the manhole cover.

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