Settlement-preventing easy-to-overhaul combined rainwater well lid

Abstract

The utility model discloses an anti-settling easy-maintenance combined type rainwater well lid, which comprises a settling bottom frame, a well lid frame and a well lid piece, the well lid frame is positioned above the settling bottom frame, the settling bottom frame comprises a cylindrical first sleeving part, the well lid frame comprises a cylindrical second sleeving part, the first sleeving part and the second sleeving part are mutually sleeved, and the well lid piece is positioned above the settling bottom frame. The base can relatively move up and down; the well lid frame is provided with an opening which is through up and down, and the well lid piece is arranged on the well lid frame and can cover the opening of the well lid frame. According to the well lid design, the well lid is designed to be in an assembling and combining mode, the assembling and combining mode between the well lid and the supporting frame is optimized, the well lid is more flexible to splice and more convenient to disassemble, various influences caused by road sinking are avoided, and meanwhile overhaul is more convenient and faster.

Description

Technical Field

[0001] The utility model relates to a rainwater manhole cover device, and more particularly to an anti-settling and easy-to-maintain combined rainwater manhole cover. Background Art

[0002] With the acceleration of urbanization, my country's municipal drainage and sewage construction technology has made qualitative progress. The design and installation of manhole covers (inspection wells, rainwater inlets, sewage inlets) in municipal engineering construction has gradually become an important part of municipal construction. The function of the manhole cover is to cover the opening of the pipe to make the road surface smooth. At the same time, it can also play the role of ventilation, drainage, maintenance, etc., ensuring the safety and reliability of the manhole cover. Traditional rainwater manhole covers on the market are generally made of ductile iron or cement prefabricated. They are heavy, not beautiful in appearance, inconvenient to install, poor in practicality, high in manufacturing cost, and inconvenient to maintain. Therefore, some rainwater manhole covers began to be made of polymer composite materials.

[0003] Traditional rainwater manhole covers are susceptible to subsidence. When the road surface sinks, the covers can easily rise above the road surface, preventing proper drainage. Alternatively, they can fall below the road surface, creating potholes and making the road uneven, hindering both vehicles and pedestrians. Therefore, a new solution is needed to address this issue. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a combined rainwater manhole cover that is anti-settling and easy to maintain.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a subsidence-proof and easy-to-maintain combined rainwater manhole cover, comprising a subsidence bottom frame, a manhole cover frame and a manhole cover member, the manhole cover frame is located above the subsidence bottom frame, the subsidence bottom frame comprises a cylindrical first sleeve portion, the manhole cover frame comprises a cylindrical second sleeve portion, the first sleeve portion and the second sleeve portion are sleeved with each other and can move relative to each other up and down; the manhole cover frame is provided with an opening that passes through from top to bottom, and the manhole cover member is provided on the manhole cover frame and can cover the opening of the manhole cover frame.

[0006] The present invention is further configured such that the first sleeve portion and the second sleeve portion are both quadrilateral structures, and are sleeved with each other to achieve rotational limitation.

[0007] The present invention is further configured such that the first sleeve portion is sleeved on the outer periphery of the second sleeve portion.

[0008] The present invention is further configured such that a plurality of supporting blocks are fixedly connected to the inner periphery of the manhole cover frame, and the supporting blocks are used to support the manhole cover member.

[0009] The present invention is further configured such that the manhole cover comprises a plurality of cover bodies, the cover bodies are arranged in a plurality of groups, each group of cover bodies comprises a first cover body and a second cover body, the first cover body and the second cover body are arranged side by side and adapted to each other.

[0010] The present invention is further configured such that the inner periphery of the manhole cover frame is fixedly connected with a rotating shaft hook, the lower portion of the cover body is fixedly connected with a rotating shaft, and the rotating shaft is rotatably connected to the rotating shaft hook.

[0011] The utility model is further configured as follows: the rotating shaft hook includes a transverse portion and a hook body portion, the transverse portion is fixedly connected to the inner circumference of the manhole cover frame, the side of the transverse portion facing the inner circumference of the manhole cover frame is fixedly connected with the hook body portion, the hook body portion is bent upward, and an arc transition is formed between the hook body portion and the transverse portion; the rotating shaft is pressed against the upper side of the transverse portion and is limited by the hook body portion.

[0012] The utility model is further configured such that the cover body includes a wide end and a narrow end, the wide end of one cover body can be spliced and adapted with the narrow end of another cover body, and the rotating shaft hook is fixedly installed on the lower side of the wide end of the cover body through the shaft seat.

[0013] The present invention is further configured such that a first buckling block is fixedly connected to a side of the first cover body close to the second cover body, and a second buckling block is fixedly connected to a side of the second cover body close to the first cover body, and the first buckling block and the second buckling block can buckle and fit with each other.

[0014] The present invention is further configured such that a filter is provided at the lower portion of the second sleeve portion, and the filter is detachably mounted on the lower side of the second sleeve portion via a hook.

[0015] In summary, the present invention has the following beneficial effects:

[0016] In the present invention, the manhole cover adopts an assembled and combined structure, which optimizes the assembly and combination method of the manhole cover parts, the settlement bottom frame and the manhole cover frame, making the splicing of the rainwater manhole cover more flexible and the disassembly more convenient; moreover, the settlement bottom frame and the manhole cover frame are mutually connected and can move relative to each other up and down, so that when the bottom surface produces settlement movement, the two can achieve adaptive changes, thereby ensuring that the upper surface of the manhole cover frame can remain flush with the bottom surface, avoiding various adverse effects caused by road settlement, and making maintenance more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structure of an anti-settling and easy-to-maintain combined rainwater well cover in this embodiment. Figure 1 ;

[0018] Figure 2 This is a three-dimensional structure of an anti-settling and easy-to-maintain combined rainwater well cover in this embodiment. Figure 2 ;

[0019] Figure 3 Schematic diagram of the structure of the cover body in this embodiment;

[0020] Figure 4 This is a top view of an anti-settling and easy-to-maintain combined rainwater manhole cover in this embodiment;

[0021] Figure 5 for Figure 4 Cross-sectional view of AA;

[0022] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0023] Figure 7 for Figure 4 Cross-sectional view of the middle BB;

[0024] Figure 8 for Figure 7 Enlarged view of point B in the middle;

[0025] Figure 9 This is a schematic structural diagram of the hook in this embodiment;

[0026] Figure 10 Schematic diagram of the structure of the filter screen in this embodiment.

[0027] Figure markings: sedimentation bottom frame 1; first sleeve part 11; manhole cover frame 2; second sleeve part 21; manhole cover member 3; cover body 30; first cover body 31; first snap-fit block 311; second cover body 32; second snap-fit block 321; wide end 301; narrow end 302; supporting block 4; limiting block 5; limiting groove 51; rotating shaft 6; shaft seat 61; rotating shaft hook 7; transverse part 71; hook body part 72; hook 8; filter screen 9. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] This embodiment discloses an anti-settling and easy-to-maintain combined rainwater manhole cover. Figure 1 、 Figure 2 As shown, it includes a settlement bottom frame 1, a manhole cover frame 2 and a manhole cover member 3. The settlement bottom frame 1 and the manhole cover frame 2 adopt an upper and lower split frame structure.

[0030] The subsidence bottom frame 1 includes a cylindrical first sleeve portion 11, and the manhole cover frame 2 includes a cylindrical second sleeve portion 21. The first sleeve portion 11 and the second sleeve portion 21 are both quadrilateral structures and have mutually adapted sizes. The two can be mutually sleeved to achieve rotational limit. The manhole cover frame 2 is located above the subsidence bottom frame 1. The first sleeve portion 11 and the second sleeve portion 21 are mutually sleeved and can move relative to each other up and down. When the bottom surface is subsided, the two can achieve adaptive changes, thereby ensuring that the upper surface of the manhole cover frame 2 can remain flush with the bottom surface.

[0031] The first sleeve portion 11 is slightly larger in size and is sleeved on the outer periphery of the second sleeve portion 21 , so that rainwater can flow smoothly during its downward flow.

[0032] The settlement bottom frame 1 and the manhole cover frame 2 are both provided with openings which pass through from top to bottom, and the openings can be used for rainwater to flow through and for maintenance personnel to pass through to achieve maintenance and repair.

[0033] The manhole cover 3 is provided on the manhole cover frame 2 , and the opening of the manhole cover frame 2 can be covered by the manhole cover 3 to form a barrier at the opening. In addition, filter holes are provided in the manhole cover 3 to allow rainwater to pass through.

[0034] During installation, the manhole cover adopts a split, modular structure. The subsidence frame 1 is installed flush with the road surface, while the manhole cover frame 2 is installed flush with the road surface. Both the subsidence frame 1 and the manhole cover frame 2 have protruding extensions formed on their outer peripheries, and a gap is formed between the subsidence frame 1 and the manhole cover frame 2. The gap between the subsidence frame 1 and the manhole cover frame 2 is filled with a layer of road cement or asphalt.

[0035] When the road surface sinks due to rain or groundwater, it will also sink. The settlement bottom frame 1 and the manhole cover frame 2 can be adaptively adjusted up and down, so that the manhole cover frame 2 can always be flush with the road surface, ensuring its drainage performance and flatness.

[0036] In this embodiment, all components of the anti-subsidence and easy-to-maintain combined rainwater manhole cover are made of high-density polyethylene (HDPE) material, which has high rigidity, toughness and mechanical strength. Compared with traditional materials, it can reduce the weight of the entire rainwater manhole cover and is more economical.

[0037] Reference Figure 1 、 Figure 2 As shown, a number of support blocks 4 are fixedly connected to the inner circumference of the manhole cover frame 2. The positions of the support blocks 4 are adapted to the shape of the manhole cover member 3. The manhole cover member 3 can be supported by multiple support blocks 4, and the installation stability of the manhole cover frame 2 can be maintained.

[0038] Reference Figure 1 、 Figure 2 、 Figure 3As shown, the manhole cover 3 includes a plurality of cover bodies 30 , which are assembled side by side to form a structure adapted to the opening of the manhole cover frame 2 .

[0039] The covers 30 are provided in several groups, specifically depending on the width of the manhole cover 3. In this embodiment, two groups are generally used. Each group of covers 30 includes a first cover 31 and a second cover 32. Both covers 30 have a rectangular trapezoidal structure. The inclined surfaces of the first and second covers 31, 32 fit together, so that the first and second covers 31, 32 are arranged side by side and joined together to form a rectangular structure.

[0040] In addition, a limiting block 5 is fixedly connected to the inner periphery of the manhole cover frame 2, and a limiting groove 51 is provided on the outer side of the cover body 30. The width and size of the limiting groove 51 are adapted to the limiting block 5, so that the limiting block 5 can be embedded in the limiting groove 51, which can limit the position of the cover body 30, ensure the structural stability of both, and play a role in supplementary positioning.

[0041] Reference Figure 2 、 Figure 3 As shown, a rotating shaft hook 7 is fixedly connected to the inner periphery of the manhole cover frame 2, and a rotating shaft 6 is fixedly connected to the lower portion of the cover body 30. The rotating shaft 6 is rotatably adapted to the rotating shaft hook 7 and can be rotatably connected to the rotating shaft hook 7, so that the cover body 30 can rotate around the rotating shaft 6 as the axis of rotation, allowing the cover body 30 to rotate open and close. The two ends of the rotating shaft 6 are mounted to the cover body 30 via shaft seats 61, which provide stable mounting and support for the rotating shaft 6.

[0042] When the cover 30 needs to be opened, the cover 30 can be supported by the rotating shaft 6 and can realize rotation guidance during the process of rotation and opening to maintain the smooth rotation of the cover 30 and facilitate the operator to perform the opening and closing operation.

[0043] Reference Figure 4 、 Figure 5 、 Figure 6 As shown, the rotating shaft hook 7 includes a transverse portion 71 and a hook body 72. The transverse portion 71 is fixedly connected to the inner circumference of the manhole cover frame 2, and the hook body 72 is fixedly connected to the side of the transverse portion 71 facing the inner circumference of the manhole cover frame 2. The hook body 72 is bent upward, forming an arc transition between the hook body 72 and the transverse portion 71. The arc surface of the transition is adapted to the rotating shaft 6, enabling smooth rotation.

[0044] In addition, the rotating shaft 6 is pressed against the upper side of the transverse portion 71, and can play a limiting role through the hook body portion 72, so as to limit the rotating shaft 6 between the hook body portion 72 and the inner circumferential wall of the manhole cover frame 2 to maintain the connection stability of the rotating shaft 6, the cover body 30 and the manhole cover frame 2, and prevent the rotating shaft 6 from falling off from the rotating shaft hook 7.

[0045] The cover 30 has a wide end 301 and a narrow end 302. Within a set of two covers 30, the wide end 301 of one cover 30 can be spliced and matched with the narrow end 302 of the other cover 30. The pivot hook 7 is fixed to the underside of the wide end of the cover 30 via a pivot seat 61. Generally, the operator can rotate the narrow end 302 of the cover 30 upward, while the wide end 301 of the cover 30 is closer to the center of rotation. During the rotational opening of the cover 30, the side away from the pivot axis 6 is smaller, further facilitating the opening and closing operation.

[0046] The wide end 301 and narrow end 302 of the cover 30 are both supported by support blocks 4, and two adjacent covers 30 can share a support block 4. Generally, there are at least two support points below the wide end 301 of the cover 30, and at least one support point below the narrow end 301. Support blocks 4 on both sides ensure the installation stability of the entire manhole cover 3.

[0047] In addition, in order to improve the strength of the cover body 30 itself, a number of reinforcing ribs are integrally formed on the bottom of the cover body 30 to increase the strength performance of the cover body 30 such as resistance to compression and bending.

[0048] Reference Figure 7 、 Figure 8 As shown, a concave-convex interlocking structure is also provided between the two covers 30 in the same group. Specifically, a first interlocking block 311 is fixedly connected to the side of the first cover 31 near the second cover 32, and a second interlocking block 321 is fixedly connected to the side of the second cover 32 near the first cover 31. The first interlocking block 311 is located at the bottom, while the second interlocking block 321 is located at the top. During installation, the first cover 31 is placed first, followed by the second cover 32. The second interlocking block 321 can be pressed against the top of the first interlocking block 311 to achieve a mutually interlocking and limiting position between the two.

[0049] Reference Figure 9 、 Figure 10 As shown, the rainwater manhole cover in this embodiment also includes a filter 9, which is installed on the lower side of the second sleeve portion 21 through a hook 8 to form a detachable structure. The filter 9 can filter branches and domestic garbage for easy cleaning.

[0050] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An anti-settling and easy-to-maintain combined rainwater manhole cover, characterized in that: The invention comprises a sinking bottom frame (1), a manhole cover frame (2) and a manhole cover member (3); the manhole cover frame (2) is located above the sinking bottom frame (1); the sinking bottom frame (1) comprises a cylindrical first sleeve portion (11); the manhole cover frame (2) comprises a cylindrical second sleeve portion (21); the first sleeve portion (11) and the second sleeve portion (21) are sleeved with each other and can move relative to each other up and down; the manhole cover frame (2) is provided with an opening that passes through from top to bottom; the manhole cover member (3) is provided on the manhole cover frame (2) and can cover the opening of the manhole cover frame (2).

2. The anti-settling and easy-to-maintain combined rainwater manhole cover according to claim 1 is characterized in that: The first sleeve portion (11) and the second sleeve portion (21) both have a quadrilateral structure and are sleeved with each other to achieve rotational limitation.

3. The anti-settling and easy-to-maintain combined rainwater manhole cover according to claim 1 is characterized in that: The first sleeve connection portion (11) is sleeved on the outer periphery of the second sleeve connection portion (21).

4. The anti-settling and easy-to-maintain combined rainwater manhole cover according to claim 1 is characterized in that: A plurality of support blocks (4) are fixedly connected to the inner periphery of the manhole cover frame (2), and the support blocks (4) are used to support the manhole cover member (3).

5. The anti-settling and easy-to-maintain combined rainwater manhole cover according to claim 1 is characterized in that: The manhole cover (3) includes a plurality of cover bodies (30), and the cover bodies (30) are arranged in a plurality of groups. Each group of cover bodies (30) includes a first cover body (31) and a second cover body (32). The first cover body (31) and the second cover body (32) are arranged side by side and adapted to each other.

6. The anti-settling and easy-to-maintain combined rainwater manhole cover according to claim 5, characterized in that: The inner periphery of the manhole cover frame (2) is fixedly connected to a rotating shaft hook (7), the lower part of the cover body (30) is fixedly connected to a rotating shaft (6), and the rotating shaft (6) is rotatably connected to the rotating shaft hook (7).

7. The anti-settling and easy-to-maintain combined rainwater manhole cover according to claim 6, characterized in that: The rotating shaft hook (7) comprises a transverse portion (71) and a hook body portion (72); the transverse portion (71) is fixedly connected to the inner periphery of the manhole cover frame (2); the hook body portion (72) is fixedly connected to the side of the transverse portion (71) facing the inner periphery of the manhole cover frame (2); the hook body portion (72) is bent upward, and an arc transition is formed between the hook body portion (72) and the transverse portion (71); the rotating shaft (6) is pressed against the upper side of the transverse portion (71) and is limited by the hook body portion (72).

8. The anti-settling and easy-to-maintain combined rainwater manhole cover according to claim 6, characterized in that: The cover body (30) comprises a wide end (301) and a narrow end (302); the wide end (301) of one cover body (30) can be spliced and adapted with the narrow end (302) of another cover body (30); and the rotating shaft hook (7) is fixedly mounted on the lower side of the wide end of the cover body (30) via the shaft seat (61).

9. The anti-settling and easy-to-maintain combined rainwater manhole cover according to claim 8, characterized in that: A first buckling block (311) is fixedly connected to one side of the first cover body (31) close to the second cover body (32), and a second buckling block (321) is fixedly connected to one side of the second cover body (32) close to the first cover body (31). The first buckling block (311) and the second buckling block (321) can be buckled and matched with each other.

10. The anti-settling and easy-to-maintain combined rainwater manhole cover according to claim 1, characterized in that: A filter screen (9) is provided at the lower portion of the second sleeve portion (21), and the filter screen (9) is detachably mounted on the lower side of the second sleeve portion (21) via a hook (8).

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