Well lid convenient to overhaul
By designing the manhole cover as a multi-petal structure and connecting it with hinges, selective opening of the manhole cover is achieved, solving the problem of time-consuming and labor-intensive operation of traditional manhole covers, improving maintenance efficiency and safety, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-03-20
AI Technical Summary
Traditional manhole covers need to be removed entirely in confined spaces or emergencies, which is time-consuming and labor-intensive, affects maintenance efficiency, and poses safety hazards. They cannot meet the needs of rapid inspection and partial maintenance.
Designed as a multi-petal structure, the manhole cover is rotatably connected to the base via hinges, allowing selective opening of specific areas and avoiding complete removal.
It greatly reduces operation time and labor intensity, improves maintenance efficiency, lowers maintenance costs, simplifies replacement procedures, improves safety, and prevents accidents.
Smart Images

Figure CN224016378U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of well lid, especially a well lid convenient to overhaul. BACKGROUND
[0002] As an important part of urban infrastructure, well lids are widely used in the maintenance and repair of underground pipe networks such as drainage, water supply, and power supply. Traditional well lids are usually designed in a circular and integrated manner. This design not only effectively prevents falling risks but also facilitates production and installation. However, in practical applications, traditional well lids have certain limitations. For example, in narrow spaces or emergency situations, heavy well lids need to be completely removed for repair operations, which is time-consuming and labor-intensive, and may even affect traffic and work efficiency.
[0003] With the acceleration of urbanization and the increasing demand for infrastructure maintenance, people have higher requirements for the design of well lids. Especially in the context of rapid inspection and partial maintenance, traditional integrated well lids cannot meet the actual needs. SUMMARY
[0004] The utility model aims at providing a well lid convenient to overhaul, which can be opened only in specific areas according to actual needs without the need to remove the well lid as a whole, greatly improving the efficiency of well lid maintenance.
[0005] To solve the above technical problems, the utility model adopts one technical scheme:
[0006] A well lid convenient to overhaul includes,
[0007] a base;
[0008] a cover body rotatably provided on the base through a hinge;
[0009] The cover body is provided in multiple and each cover body is in petal structure.
[0010] According to some embodiments, a plurality of installation grooves are provided on the base, and the cover body is rotatably embedded in the installation groove through the hinge.
[0011] According to some embodiments, the hinge includes:
[0012] a rotating shaft sleeved on the cover body, with both ends of the rotating shaft penetrating through the installation groove and extending to the outside of the base, one end of the rotating shaft being provided with a limiting block, and the other end being sleeved with a buckle hinge.
[0013] According to some embodiments, a first limiting groove is provided on one side of the upper part of the cover body, and a limiting plate is provided on the other side.
[0014] According to some embodiments, a through hole is arranged in the first limiting groove and is communicated with the interior of the base.
[0015] According to some embodiments, a filter screen is arranged at the through hole.
[0016] According to some embodiments, a hanging buckle groove is further arranged on the cover.
[0017] According to some embodiments, a second limiting groove is arranged on the inner side of the base, and the cover is embedded in the second limiting groove.
[0018] According to some embodiments, a plurality of mounting holes are arranged on the base.
[0019] Beneficial effects:
[0020] 1. The cover is arranged as a plurality of petal structures, and is rotatably arranged on the base through the hinge, so that the plurality of covers can be detachably connected according to actual conditions under the action of the hinge. Since the cover is divided into a plurality of independent petal structures, the maintenance personnel can selectively open a specific area according to needs, instead of removing the entire cover as in the traditional manhole cover, which greatly reduces the operation time and labor intensity, improves the maintenance efficiency, and effectively prevents accidents such as pedestrians or vehicles entering the manhole area which is not completely closed, and when a part of the cover is damaged, only the corresponding petal part needs to be replaced, instead of replacing the entire manhole cover, which not only reduces the maintenance cost, but also simplifies the replacement process.
[0021] Additional aspects and advantages of the utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiment or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual proportion.
[0023] Figure 1 is a schematic view of the utility model;
[0024] Figure 2 is a perspective sectional view of the utility model;
[0025] Figure 3 is Figure 2 is a schematic view of the hinge shown in the figure;
[0026] Figure 4 is Figure 2A schematic view of the cover shown in FIG.
[0027] Figure 5 As Figure 4 A partial enlarged view at A shown in FIG.
[0028] Figure 6 As Figure 2 A perspective sectional view of the base shown in FIG.
[0029] In the figure, 1 base, 11 installation groove, 12 second limiting groove, 13 mounting hole, 2 cover, 21 first limiting groove, 22 limiting plate, 23 through hole, 24 filter screen, 25 hanging buckle groove, 3 hinge, 31 rotating shaft, 32 limiting block, 33 buckle hinge. DETAILED DESCRIPTION
[0030] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0031] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.
[0032] In the description of the utility model, greater than, less than, more than, etc. are understood as not including the number, and above, below, etc. are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.
[0033] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection, etc. should be understood broadly, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.
[0034] Combined Figures 1 to 6 As shown in the figure, a well cover convenient for maintenance, comprising a base 1, a cover 2 and a hinge 3.
[0035] The cover 2 is rotatably arranged on the base 1 through the hinge 3; the cover 2 is arranged in multiple, and each cover 2 is in petal structure.
[0036] Wherein, by setting the cover body 2 as a plurality of petal structures, and by the hinge 3 being rotatably provided on the base 1, the plurality of cover bodies 2 can be detachably connected under the action of the hinge 3, so that the maintenance personnel can selectively open the specific area according to the needs, instead of removing the entire cover body 2 as in the traditional manhole cover, which greatly reduces the operation time and labor intensity, improves the maintenance efficiency, and effectively prevents accidents such as pedestrians or vehicles entering the partially closed manhole area, and when a part of the cover body 2 is damaged, only the corresponding petal part needs to be replaced, instead of replacing the entire manhole cover, which not only reduces the maintenance cost, but also simplifies the replacement process.
[0037] The advantages of such design mainly lie in the following aspects:
[0038] 1. Convenient and efficient operation:
[0039] The traditional manhole cover needs to be removed during maintenance, which is complex and time-consuming. The cover body of this manhole cover is divided into a plurality of independent petal structures, and the maintenance personnel can selectively open the specific area by rotating the specific cover body through the hinge according to the actual maintenance needs, without the need to remove the entire cover body, which greatly reduces the operation time and labor intensity, and significantly improves the maintenance efficiency.
[0040] 2. Improved safety:
[0041] The traditional manhole cover is completely exposed after being opened, which is prone to accidents such as pedestrians or vehicles entering the partially closed manhole area. This manhole cover can open only part of the area as needed, and the remaining part remains closed, which can effectively reduce the probability of such accidents and ensure the safety of pedestrians and vehicles.
[0042] 3. Reduced maintenance cost:
[0043] If a part of the cover body is damaged, the traditional manhole cover often needs to be replaced as a whole. However, the manhole cover only needs to replace the damaged petal part, avoiding the high cost of replacing the entire manhole cover and reducing the maintenance cost.
[0044] 4. Simplified replacement process:
[0045] Compared with replacing the entire traditional manhole cover, replacing a single petal-shaped cover body is simpler and does not require large equipment, reducing the cost of manpower, material resources and time required for replacement, making the replacement process more simple and efficient.
[0046] In combination with Figure 2 , Figure 3 and Figure 6As shown, the base 1 is provided with a plurality of mounting slots 11, and the cover 2 is rotatably embedded in the mounting slots 11 through the hinge 3. The hinge 3 comprises a rotating shaft 31, a limiting block 32 and a buckle hinge 33. The rotating shaft 31 is sleeved on the cover 2, and the two ends of the rotating shaft 31 respectively pass through the mounting slots 11 and extend to the outside of the base 1. One end of the rotating shaft 31 is provided with the limiting block 32, and the other end is sleeved with the buckle hinge 33.
[0047] As shown, the rotating shaft 31 is sleeved on the cover 2, and the two ends pass through the mounting slots 11 of the base 1 to form a rotating support structure. This design allows the cover to perform opening and closing actions around the rotating shaft, similar to the rotating shaft structure of the hinge in the search results. The limiting block 32 is arranged at one end of the rotating shaft 31 to limit the axial displacement of the cover during rotation, ensuring the stability of the hinge. The buckle hinge 33 at the other end of the rotating shaft 31 is designed in a modular manner, facilitating quick installation or disassembly of individual petal-shaped covers. This achieves the effect of detachable connection between the cover 2 and the base 1.
[0048] As shown, Figure 4 and Figure 5 As shown, the upper side of the cover 2 is provided with a first limiting slot 21, and the other side is provided with a limiting plate 22. The first limiting slot 21 is provided with a through hole 23 communicating with the inside of the base 1. The through hole 23 is provided with a filter screen 24. The cover 2 is also provided with a hanging slot 25.
[0049] As shown, the first limiting slot 21 communicates with the inside of the base 1, and cooperates with the limiting plate 22 to form a clamping structure, ensuring that the cover 2 tightly fits the base 1 when closed, preventing the cover from being offset or loosened due to vehicle crushing or external force impact. Similar design can be found in the limiting slot and wedge block structure of the shockproof and theftproof manhole cover, which improves stability through mechanical limiting. In the petal-shaped split cover design, the limiting slot and the limiting plate can realize the alignment and positioning of multiple covers, ensuring the overall closure flatness and avoiding safety hazards caused by single cover misalignment. The through hole 23 serves as a water flow channel, allowing quick drainage of road surface water. The filter screen 24 intercepts large-particle debris such as leaves and garbage, preventing them from entering the well and causing pipe blockage. Referring to the filter screen design of the city beautification manhole cover, it adopts magnetic positioning method, facilitating disassembly and cleaning. If a multi-stage filtering design (such as coarse filter screen + fine filter screen) is adopted, the anti-blocking effect can be further improved, similar to the composite filtering structure in the municipal sewage manhole cover, which can not only intercept solid waste but also avoid frequent filter screen blockage. The hanging slot 25 allows maintenance personnel to use special tools (such as hook rod) to fix the cover, facilitating local opening or overall removal. Referring to the handle and slide rod structure of the assembled manhole cover, the external operation components simplify the maintenance process.
[0050] As shown, Figure 6 As shown, the inner side of the base 1 is provided with a second limiting slot 12, and the cover 2 is embedded in the second limiting slot 12. The base 1 is provided with a plurality of mounting holes 13.
[0051] The second limiting groove 12 serves as an embedded track of the cover 2, ensuring complete adhesion with the base 1 when the cover is closed through geometric matching, preventing the cover from being offset or loosened due to external forces (such as vehicle rolling or vibration). Similar designs can be found in the limiting groove structure of shockproof and theftproof well covers, which enhance overall stability through mechanical fitting. In the split petal cover design, the second limiting groove 12 provides a unified alignment reference for each independent cover 2, ensuring that multiple petal-shaped covers form a flat surface when closed, avoiding safety hazards caused by local lifting or misalignment. The mounting hole 13 allows the base 1 to be fixed to the ground or well mouth pre-buried structure through bolts, expansion screws, etc., enhancing the overall displacement resistance, especially suitable for high traffic areas. Such anchoring methods are widely used in anti-settlement well covers, effectively reducing the deformation or sinking of the base caused by external forces.
[0052] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by ordinary skilled in the art without departing from the purpose of the utility model.
Claims
1. A manhole cover that is easy to inspect and maintain, characterized in that, include: Base (1); The cover (2) is rotatably mounted on the base (1) via a hinge (3); The cover (2) is configured as a plurality of such covers, and each cover (2) has a petal structure.
2. The manhole cover for easy maintenance according to claim 1, characterized in that: The base (1) has multiple mounting slots (11), and the cover (2) is rotatably embedded in the mounting slots (11) through the hinge (3).
3. A manhole cover for easy maintenance according to claim 2, characterized in that: The hinge (3) includes: A rotating shaft (31) is sleeved on the cover (2), and both ends of the rotating shaft (31) pass through the mounting groove (11) and extend to the outside of the base (1). One end of the rotating shaft (31) is provided with a limit block (32), and the other end is sleeved with a snap hinge (33).
4. A manhole cover for easy maintenance according to claim 1 or 3, characterized in that: The cover (2) has a first limiting groove (21) on one side of its upper part and a limiting plate (22) on the other side.
5. A manhole cover for easy maintenance according to claim 4, characterized in that: The first limiting groove (21) has a through hole (23) that communicates with the interior of the base (1).
6. A manhole cover for easy maintenance according to claim 5, characterized in that: A filter screen (24) is provided at the through hole (23).
7. A manhole cover for easy maintenance according to claim 4, characterized in that: The cover (2) is also provided with a hook groove (25).
8. A manhole cover for easy maintenance according to claim 1, characterized in that: The base (1) has a second limiting groove (12) on its inner side, and the cover (2) is embedded in the second limiting groove (12).
9. A manhole cover for easy maintenance according to claim 8, characterized in that: The base (1) has multiple mounting holes (13).