Concrete well lid convenient to assemble

Through the design of manhole cover connected by alloy frame and hinge, combined with magnetic connection and reinforcement ribs, the problems of inconvenient assembly and insufficient strength of traditional manhole covers are solved, convenient installation is achieved, drainage performance and structural stability are improved.

CN223256061UActive Publication Date: 2025-08-22DALIAN LUAN BUILDING MATERIALS CO LTD
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Patent Information

Application Number
CN202422611693.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-29
Publication Date
2025-08-22
Estimated Expiration
2034-10-29

AI Technical Summary

Technical Problem

Traditional concrete manhole covers are inconvenient to assemble and maintain, insufficient drainage performance, insufficient structural strength, and easy to cause safety hazards and damage due to accumulated water and vehicle pressure.

Method used

The alloy outer frame design is adopted, and the inner manhole cover is connected by the first semicircular cover plate and the second semicircular cover plate through an alloy hinge. The magnetic plate is magnetically connected to the iron connecting plate. Reinforcement ribs are provided around the outer frame, and water guide holes and auxiliary handles are provided on the cover plate.

Benefits of technology

The installation and maintenance process of manhole covers is simplified, assembly efficiency is improved, structural strength and drainage performance are enhanced, safety hazards caused by water accumulation are reduced, and service life is extended.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a concrete well lid convenient to assemble, which comprises an alloy outer frame, an inner well lid is arranged in the middle of the alloy outer frame, the inner well lid consists of a first semicircular cover plate and a second semicircular cover plate, and the first semicircular cover plate and the second semicircular cover plate are connected through an alloy hinge; the lower end of the alloy outer frame is provided with a connecting block, the lower end of the connecting block is provided with a magnetic plate, and the lower end of the first semicircular cover plate and the lower end of the second semicircular cover plate are respectively provided with an iron connecting plate. And the assembly and maintenance efficiency of the well lid is greatly improved. Meanwhile, due to the magnetic connection design of the magnetic plate and the iron connecting plate, the installation process is further simplified, a complex fixing device is not needed, and installation convenience is improved. The reinforcing ribs arranged on the alloy outer frame are arranged in an annular array mode, and the overall structural strength of the well lid is remarkably enhanced.
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Description

Technical Field

[0001] The utility model relates to the technical field of concrete manhole covers, and specifically relates to a concrete manhole cover that is easy to assemble. Background Art

[0002] In related technologies, concrete manhole covers are an indispensable component in existing urban infrastructure construction and are widely used in various fields such as drainage, communications, and electricity.

[0003] During the implementation of the embodiments of the present disclosure, it was found that at least the following problems exist in the related art:

[0004] Traditional concrete manhole covers are difficult to assemble and maintain. Firstly, their heavy weight and integrated design require specialized lifting equipment for installation and replacement, increasing both difficulty and cost. Secondly, traditional manhole covers lack drainage performance, posing a safety hazard due to accumulated water. Furthermore, their structural design often lacks sufficient strength to withstand the increasing pressure of vehicles and pedestrians, making them susceptible to damage. Utility Model Content

[0005] The purpose of the utility model is to provide a concrete manhole cover that is easy to assemble, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a concrete manhole cover that is easy to assemble, comprising an alloy outer frame, an inner manhole cover is provided in the middle of the alloy outer frame, the inner manhole cover is composed of a first semicircular cover plate and a second semicircular cover plate, and the first semicircular cover plate and the second semicircular cover plate are connected by an alloy hinge; a connecting block is provided at the lower end of the alloy outer frame, a magnetic plate is provided at the lower end of the connecting block, and an iron connecting plate is provided at the lower end of the first semicircular cover plate and the second semicircular cover plate, and the iron connecting plate is magnetically connected to the magnetic plate.

[0007] Preferably, a plurality of reinforcing ribs are embedded on the outer side of the alloy outer frame, and the plurality of reinforcing ribs are arranged in a ring array around the alloy outer frame.

[0008] Preferably, a plurality of first water guide holes are provided on the plate walls of the first semicircular cover plate and the second semicircular cover plate.

[0009] Preferably, a plurality of second water guide holes are provided at the connection between the first semicircular cover plate and the second semicircular cover plate.

[0010] Preferably, both the first semicircular cover plate and the second semicircular cover plate are provided with mounting grooves, and auxiliary handles are provided in the mounting grooves.

[0011] Compared with existing technologies, this invention offers the following advantages: The alloy hinges connecting the first and second semicircular cover plates allow for easy opening and closing of the manhole cover, significantly improving assembly and maintenance efficiency. Furthermore, the magnetic connection between the magnetic plate and the iron connecting plate further simplifies installation, eliminating the need for complex fixings and enhancing ease of installation.

[0012] The reinforcing ribs on the alloy frame, arranged in a circular array, significantly enhance the overall structural strength of the manhole cover, enabling it to better withstand the pressure of vehicles and pedestrians and extending its service life. The first water guide holes on the first and second semicircular cover plates, as well as the second water guide holes at the connection, effectively improve the drainage performance of the manhole cover, avoiding safety hazards and damage caused by accumulated water.

[0013] The auxiliary handle installed in the installation groove allows the operator to easily lift the manhole cover when it needs to be opened, thereby improving work efficiency and reducing hand injuries that may be caused by directly moving the manhole cover.

[0014] Environmentally friendly and durable: Components such as the frame and hinges are made of corrosion-resistant and wear-resistant alloy materials, reducing the frequency of replacement due to aging or damage, which is beneficial to environmental protection and resource conservation. Furthermore, the high strength of the alloy material ensures the stability and safety of the manhole cover during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main view of the utility model;

[0016] Figure 2 It is a side view schematic diagram of the utility model;

[0017] Figure 3 It is a top view schematic diagram of the present utility model.

[0018] In the figure: 1. Alloy outer frame; 2. First semicircular cover plate; 3. Second semicircular cover plate; 4. Connecting block; 5. Magnetic plate; 6. Iron connecting plate; 7. Reinforcing rib; 8. First water guide hole; 9. Second water guide hole; 10. Mounting slot; 11. Auxiliary handle. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-3 , the utility model provides a technical solution: a concrete manhole cover that is easy to assemble, comprising an alloy outer frame 1, an inner manhole cover is provided in the middle of the alloy outer frame 1, and the inner manhole cover is composed of a first semicircular cover plate 2 and a second semicircular cover plate 3, and the first semicircular cover plate 2 and the second semicircular cover plate 3 are connected by an alloy hinge. The core component of this concrete manhole cover is the alloy outer frame 1, which is made of high-strength alloy material and has excellent corrosion resistance and load-bearing capacity. An inner manhole cover structure is cleverly designed in the middle of the alloy outer frame 1, and the inner manhole cover is composed of two semicircular cover plates—a first semicircular cover plate 2 and a second semicircular cover plate 3—that are seamlessly connected by precise alloy hinges. This design not only simplifies the installation steps, but also makes the manhole cover smoother and smoother when opening and closing, effectively avoiding the safety hazards caused by loosening or misalignment of traditional manhole covers;

[0021] To further enhance the stability of the manhole cover, a connection block 4 is designed at the lower end of the alloy outer frame 1. These connection blocks 4 not only connect the manhole cover to the ground structure, but also magnetically connect to the iron connection plate 6 on the inner manhole cover through a magnetic plate 5 at their lower end. This magnetic connection mechanism not only ensures the manhole cover remains secure during normal use, but also facilitates rapid disassembly and maintenance when necessary. Experimental data shows that the load-bearing capacity of this magnetic connection system far exceeds that of traditional manhole covers, and it can withstand greater vehicle pressure and pedestrian trampling.

[0022] Specifically, several reinforcing ribs 7 are cleverly arranged on the outside of the alloy frame 1. These ribs 7 are tightly arranged in a circular array around the alloy frame 1, effectively enhancing the structural strength and deformation resistance of the entire manhole cover. Even in harsh weather conditions and complex traffic environments, this manhole cover can maintain its original form and function.

[0023] Specifically, this manhole cover also excels in its detailed design. Both the first and second semicircular cover plates 2 and 3 are equipped with a number of oval-shaped first water guide holes 8, which quickly drain water from the manhole cover surface, preventing slipping accidents and corrosion caused by accumulated water. Furthermore, several carefully designed second water guide holes 9 are incorporated into the joint between the two semicircular cover plates, further ensuring a dry and clean joint and extending the life of the manhole cover.

[0024] Specifically, to facilitate installation and use, the first and second semicircular cover plates 2 and 3 are provided with mounting grooves 10, and auxiliary handles 11 are provided within the mounting grooves. These auxiliary handles not only make opening and closing the manhole cover easier and more labor-saving, but also provide convenience for users to quickly open the manhole cover in an emergency.

[0025] Working principle: When the utility model is in operation, the first semicircular cover plate 2 and the second semicircular cover plate 3 are connected by an alloy hinge. This design allows the two to be easily opened and closed, making it easy to repair and inspect underground equipment or pipelines.

[0026] The lower end of the alloy outer frame 1 is provided with a connecting block 4, and the lower end of the connecting block 4 is provided with a magnetic plate 5. The lower ends of the first semicircular cover plate 2 and the second semicircular cover plate 3 are both provided with iron connecting plates 6. These iron connecting plates 6 are magnetically connected to the magnetic plates 5 to ensure that the inner manhole cover is firmly fixed in the alloy outer frame 1, while also facilitating removal.

[0027] A plurality of first water guide holes 8 are provided on the wall of the first semicircular cover plate 2 and the second semicircular cover plate 3. These holes can allow rainwater or accumulated water to pass through quickly to avoid water accumulation on the surface of the manhole cover.

[0028] A plurality of second water guide holes 9 are further provided at the connection between the first semicircular cover plate 2 and the second semicircular cover plate 3. These holes further enhance the drainage capacity and ensure that the connection will not be damaged due to water accumulation.

[0029] In order to facilitate opening the inner manhole cover, a mounting groove 10 is provided on the first semicircular cover plate 2 and the second semicircular cover plate 3, and an auxiliary handle 11 is provided in the mounting groove 10. Workers can easily open or close the inner manhole cover by pulling the auxiliary handle 11.

[0030] A number of reinforcing ribs 7 are embedded on the outside of the alloy outer frame 1. These reinforcing ribs 7 are arranged in a ring array around the alloy outer frame 1, thereby improving the strength and stability of the entire manhole cover and preventing damage due to external pressure or impact.

[0031] In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0032] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0033] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A concrete manhole cover that is easy to assemble, characterized by: It comprises an alloy outer frame (1), wherein an inner manhole cover is provided in the middle of the alloy outer frame (1), wherein the inner manhole cover is composed of a first semicircular cover plate (2) and a second semicircular cover plate (3), wherein the first semicircular cover plate (2) and the second semicircular cover plate (3) are connected via an alloy hinge; The lower end of the alloy outer frame (1) is provided with a connecting block (4), the lower end of the connecting block (4) is provided with a magnetic plate (5), and the lower ends of the first semicircular cover plate (2) and the second semicircular cover plate (3) are both provided with an iron connecting plate (6), and the iron connecting plate (6) is magnetically connected to the magnetic plate (5).

2. The easy-to-assemble concrete manhole cover according to claim 1, characterized in that: A plurality of reinforcing ribs (7) are embedded on the outer side of the alloy outer frame (1), and the plurality of reinforcing ribs (7) are arranged in a ring array around the alloy outer frame (1).

3. The easy-to-assemble concrete manhole cover according to claim 1, characterized in that: A plurality of first water guide holes (8) are provided on the plate walls of the first semicircular cover plate (2) and the second semicircular cover plate (3).

4. The easy-to-assemble concrete manhole cover according to claim 1, characterized in that: A plurality of second water guide holes (9) are provided at the connection between the first semicircular cover plate (2) and the second semicircular cover plate (3).

5. The easy-to-assemble concrete manhole cover according to claim 1, characterized in that: Both the first semicircular cover plate (2) and the second semicircular cover plate (3) are provided with a mounting groove (10), and an auxiliary handle (11) is provided in the mounting groove (10).