Municipal well lid with quick disassembly structure
By designing a clamping cavity and positioning mechanism in the municipal manhole cover, combined with a limiting mechanism, the problem of rapid disassembly of manhole covers in the existing technology has been solved, realizing rapid disassembly of manhole covers, improving disassembly efficiency and enhancing the compressive strength of the manhole ring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG MINGYE MUNICIPAL GARDEN ENG CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-14
AI Technical Summary
Existing municipal manhole covers are prone to deformation due to vehicle pressure after prolonged use, making it difficult to disassemble the manhole ring and cover joint. Furthermore, the lack of a pry bar to insert into the groove makes the disassembly process cumbersome.
Design a municipal manhole cover with a positioning mechanism, including a base plate, a manhole ring, and a manhole cover. A cavity is provided between the outer periphery of the manhole cover and the inner periphery of the manhole ring. The top of the base plate has a reinforcing rib. The manhole cover has a drainage hole inside. The positioning mechanism enables the quick disassembly of the manhole cover through a limiting block and a limiting groove.
The clamping cavity allows for the insertion of a pry bar, simplifying the disassembly process of the manhole cover and improving disassembly efficiency. The reinforcing ribs enhance the compressive strength of the manhole ring, preventing deformation and enabling rapid disassembly and support of the manhole cover.
Smart Images

Figure CN224119599U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of manhole cover installation and disassembly, specifically a municipal manhole cover with a quick disassembly structure. Background Technology
[0002] In urban road administration, round manhole covers are generally used because they are less likely to tilt and can better protect the safety of pedestrians and vehicles.
[0003] During long-term use, existing manhole covers are prone to deformation at the joint between the manhole ring and the manhole cover due to vehicle pressure. This can lead to excessive compression between the inner circumference of the manhole ring and the outer circumference of the manhole cover, making them difficult to remove. In such cases, a pry bar is required. However, since there is no groove between the manhole ring and the manhole cover for the pry bar to be inserted, disassembly is quite cumbersome. Utility Model Content
[0004] The purpose of this utility model is to provide a municipal manhole cover with a quick-disassembly structure in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a municipal manhole cover with a quick-disassembly structure, comprising a base plate, a manhole ring integrally formed at the top center of the base plate, the base plate and the manhole ring being connected by a positioning mechanism, the top of the base plate being connected to the manhole cover on the inner side of the manhole ring, a cavity being formed between the outer periphery of the manhole cover and the inner periphery of the manhole ring, and an upwardly protruding reinforcing rib integrally formed at the top of the base plate, the outer end of the reinforcing rib being integrally formed with the inner periphery of the manhole ring, and the reinforcing rib being located on the inner side of the cavity.
[0006] As a further embodiment of this utility model: the positioning mechanism includes a limiting block integrally formed on the inner periphery of the base plate, the bottom end of the limiting block being integrally formed with the top end of the base plate;
[0007] The positioning mechanism also includes a limiting groove formed on the outer periphery of the manhole cover.
[0008] As a further improvement of this utility model: the outer wall of the limiting block is smaller than the inner wall of the limiting groove, and the end of the limiting groove near the inner circumference of the well ring is open.
[0009] As a further improvement of this utility model, the manhole cover has multiple drainage holes inside.
[0010] As a further improvement of this utility model, the bottom plate protrudes inward to support the bottom end of the manhole cover.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. By setting up a positioning mechanism and clamping cavity, a crowbar can be inserted into the clamping cavity when disassembling the manhole cover, making it easier to pry up the manhole cover and thus improving the disassembly efficiency. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the installation of the manhole cover of this utility model;
[0015] Figure 3 This is a schematic diagram of the internal structure of this utility model.
[0016] In the diagram: 1. Base plate; 2. Well ring; 3. Limiting block; 4. Well cover; 5. Clamping cavity; 6. Reinforcing rib; 7. Limiting groove. Detailed Implementation
[0017] 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.
[0018] Please see Figures 1-3 In this embodiment of the present invention, a municipal manhole cover with a quick-disassembly structure includes a base plate 1. A manhole ring 2 protruding upward is integrally formed at the top center of the base plate 1. The base plate 1 and the manhole ring 2 are connected by a positioning mechanism. A manhole cover 4 is connected to the top of the base plate 1 on the inner side of the manhole ring 2. A cavity 5 is formed between the outer periphery of the manhole cover 4 and the inner periphery of the manhole ring 2. An upwardly protruding reinforcing rib 6 is integrally formed at the top of the base plate 1. The outer end of the reinforcing rib 6 is integrally formed with the inner periphery of the manhole ring 2, and the reinforcing rib 6 is located on the inner side of the cavity 5.
[0019] In this embodiment: When installing the manhole cover 4, align the two parts of the positioning mechanism distributed on the manhole cover 4 and the manhole ring 2, and then lower the manhole cover 4 until the two parts of the positioning mechanism are in contact with each other, thus completing the installation of the manhole cover 4. When the manhole cover 4 needs to be removed, insert a pry bar into the inside of the clamping cavity 5, and then pry the manhole cover 4 up with the pry bar to remove the manhole cover 4.
[0020] This disassembly method can prevent deformation of the docking position of the well ring 2 and the well cover 4 due to external pressure during long-term use of the device, which would prevent disassembly. It can ensure that the pry bar and the well cover 4 have an effective contact point, thereby avoiding the problem that the existing docking position of the well ring 2 and the well cover 4 is inconvenient to insert the pry bar, thus making disassembly easier.
[0021] Furthermore, by designing reinforcing rib 6, the compressive strength of well ring 2 can be improved, thus preventing excessive deformation of well ring 2.
[0022] Please refer to this carefully. Figure 1 and Figure 2 The positioning mechanism includes a limiting block 3 integrally formed on the inner periphery of the base plate 1, the bottom end of the limiting block 3 being integrally formed with the top end of the base plate 1; the positioning mechanism also includes a limiting groove 7 opened on the outer periphery of the manhole cover 4, the outer wall of the limiting block 3 being smaller than the inner wall of the limiting groove 7, and the end of the limiting groove 7 near the inner periphery of the manhole ring 2 being open.
[0023] In this embodiment: during the docking process of the manhole cover 4, the manhole cover 4 drives the limiting groove 7 and the limiting block 3 to align in the vertical direction. After alignment, the manhole cover 4 is lowered until the top of the manhole cover 4 is in contact with the top of the base plate 1. At this time, the base plate 1 provides support for the manhole cover 4. This design can limit the position of the manhole cover 4 within a certain range after docking.
[0024] When using a crowbar to pry up the manhole cover 4, in order to avoid prying interference caused by the docking of the limiting block 3 and the limiting groove 7, the outer wall of the limiting block 3 is designed to be smaller than the inner wall of the limiting groove 7, so that it has a certain relative space for movement.
[0025] Please refer to this carefully. Figure 1 and Figure 2 The manhole cover 4 has multiple drainage holes inside.
[0026] In this embodiment, the design of the drainage hole allows rainwater to be discharged into the rainwater pipe through the drainage hole during rainfall.
[0027] Please refer to this carefully. Figure 3 The base plate 1 protrudes inward to support the bottom of the manhole cover 4.
[0028] In this embodiment, effective support for the manhole cover 4 is achieved.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A municipal manhole cover with a quick-disassembly structure, comprising a base plate (1), characterized in that, The top center of the base plate (1) is integrally formed with an upwardly protruding well ring (2). The base plate (1) and the well ring (2) are connected by a positioning mechanism. The top of the base plate (1) is connected to the well cover (4) on the inner side of the well ring (2). There is a cavity (5) between the outer periphery of the well cover (4) and the inner periphery of the well ring (2). The top of the base plate (1) is integrally formed with an upwardly protruding reinforcing rib (6). The outer end of the reinforcing rib (6) is integrally formed with the inner periphery of the well ring (2), and the reinforcing rib (6) is located on the inner side of the cavity (5).
2. A municipal manhole cover with a quick-disassembly structure according to claim 1, characterized in that, The positioning mechanism includes a limiting block (3) integrally formed on the inner periphery of the base plate (1), and the bottom end of the limiting block (3) is integrally formed with the top end of the base plate (1); The positioning mechanism also includes a limiting groove (7) formed on the outer periphery of the manhole cover (4).
3. A municipal manhole cover with a quick-disassembly structure according to claim 2, characterized in that, The outer wall of the limiting block (3) is smaller than the inner wall of the limiting groove (7), and the end of the limiting groove (7) near the inner circumference of the well ring (2) is open.
4. A municipal manhole cover with a quick-disassembly structure according to claim 3, characterized in that, The manhole cover (4) has multiple drainage holes inside.
5. A municipal manhole cover with a quick-disassembly structure according to claim 4, characterized in that, The base plate (1) protrudes inward to support the bottom end of the manhole cover (4).