Anti-falling net inspection well

By employing a combination design of "匚"-shaped grooves with sliding blocks, trapezoidal blocks, rubber pads, and springs inside the inspection well, the problems of shortened lifespan and inconvenient replacement of fall protection nets in humid environments are solved, enabling convenient disassembly and installation, improving assembly speed, and extending the service life of fall protection nets.

CN223548694UActive Publication Date: 2025-11-14XUZHOU YITIAN ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202423140362.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-11-14
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

The existing safety nets for manholes are welded to the inner wall of the pressure ring, which leads to a shortened lifespan due to long-term exposure to a humid environment, and replacement is inconvenient.

Method used

The design incorporates an "U"-shaped groove, sliding block, trapezoidal block, rubber pad, and spring. The safety net is designed for easy disassembly and installation through sliding engagement. The safety net is made of metal and coated with a galvanized layer to improve its corrosion resistance.

Benefits of technology

It enables convenient disassembly and installation of the fall protection net, improves assembly speed, provides partial cushioning, and extends the service life of the fall protection net.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an inspection well with an anti-falling net, and relates to the technical field of inspection wells, the inspection well comprises an inspection well, a protective cover, a pressure-bearing ring and the anti-falling net, the top of the inspection well is provided with the pressure-bearing ring, one side of the pressure-bearing ring is provided with the protective cover in a hinged mode, the inner wall of the pressure-bearing ring is symmetrically provided with U-shaped grooves, and the anti-falling net is arranged in the U-shaped grooves. According to the anti-falling net inspection well, the overall design is novel, the structure is simple, through the design that the jacking assembly is matched with the n-shaped grooves, the anti-falling net can be conveniently disassembled and assembled, the overall assembling speed is increased, and therefore the anti-falling net inspection well is worthy of being widely used and popularized.
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Description

Technical Field

[0001] The utility model belongs to the technical field of inspection wells, and more specifically, particularly relates to an anti-falling net inspection well. Background Art

[0002] Inspection wells are used for buried plastic drainage pipes with an outer diameter not greater than 800 mm and a burial depth not greater than 6 m in various communities. They are generally installed at the intersections, turning points, pipe diameter or slope change points, and drop water points of drainage pipes.

[0003] Based on the above, the inventor found the following problems: The current inspection wells are composed of a pressure-bearing ring and a protective cover. Some inspection wells are equipped with anti-falling nets inside, mainly for protection. However, most anti-falling nets are welded to the inner wall of the pressure-bearing ring. Since there is water flow inside the inspection well, a large amount of water vapor will be generated. The anti-falling net placed in a humid environment for a long time will reduce its lifespan, and the welding method will make it more troublesome to replace.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies to provide an anti-falling net inspection well, aiming to achieve a more practical value. Utility Model Content

[0005] The purpose and effect of an anti-falling net inspection well of the utility model are achieved by the following specific technical means:

[0006] An anti-falling net inspection well includes an inspection well, a protective cover, a pressure-bearing ring, and an anti-falling net. The pressure-bearing ring is installed at the top of the inspection well. One side of the pressure-bearing ring is hinged with a protective cover. The inner wall of the pressure-bearing ring is symmetrically provided with "C"-shaped grooves, and an anti-falling net is slidably clamped between the "C"-shaped grooves.

[0007] Further, a sliding groove is opened at the bottom of the "C"-shaped groove, and a jacking component is slidably installed in the sliding groove. The jacking component includes a sliding block. A chamber is opened at the top of the sliding block. A limiting groove is provided on the inner wall of the chamber. A trapezoidal block is slidably installed between the limiting grooves. A rubber pad is installed at the top of the trapezoidal block, and a spring is installed below the trapezoidal block.

[0008] Further, fixing blocks are symmetrically installed on the outer walls of both sides of the anti-falling net, and the anti-falling net is assembled and installed with the "C"-shaped groove through the fixing blocks.

[0009] Further, the anti-falling net is wholly composed of a metal material, and a galvanized layer is coated on the surface of the anti-falling net.

[0010] Further, a rabbet is opened at the top of the pressure-bearing ring, and the size of the rabbet is adapted to the outer diameter of the protective cover.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This invention utilizes a U-shaped groove in conjunction with a sliding block, a trapezoidal block, a rubber pad, and a spring. When the fall arrest net is inserted into one end of the U-shaped groove, pressing down causes the rubber pad to move downwards, while maintaining the current height, the sliding block is moved until it reaches the other end of the U-shaped groove. After releasing the fall arrest net, the spring's reaction force forces it to engage in the groove at the other end of the U-shaped groove. This operation allows for convenient disassembly and installation of the fall arrest net, while the spring provides partial cushioning. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of a fall-prevention net inspection well according to this utility model.

[0014] Figure 2 This utility model relates to a fall-prevention net inspection well. Figure 1 A magnified diagram of point A in the diagram.

[0015] Figure 3 This is a schematic diagram of a fall-prevention net manhole lifting assembly according to this utility model.

[0016] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0017] 1. Inspection well; 2. Protective cover; 3. Pressure bearing ring; 4. Fall protection net; 5. Fixing block; 6. "U" shaped groove; 7. Sliding groove; 8. Sliding block; 9. Rubber pad; 10. Trapezoidal block; 11. Spring. Detailed Implementation

[0018] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0019] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Embodiment

[0021] As shown in the Figure 1 to the Figure 3 accompanying drawings:

[0022] The present utility model provides an anti-falling net inspection well, which includes an inspection well 1, a protective cover 2, a pressure-bearing ring 3, and an anti-falling net 4. A pressure-bearing ring 3 is installed at the top of the inspection well 1. One side of the pressure-bearing ring 3 is hingedly installed with a protective cover 2. Symmetric "U"-shaped grooves 6 are opened on the inner wall of the pressure-bearing ring 3, and an anti-falling net 4 is slidably clamped between the "U"-shaped grooves 6.

[0023] Among them, a chute 7 is opened at the bottom of the "U"-shaped groove 6, and a jacking component is slidably installed in the chute 7. The jacking component includes a sliding block 8. A chamber is opened at the top of the sliding block 8. Limiting grooves are provided on the inner wall of the chamber. A trapezoidal block 10 is slidably installed between the limiting grooves. A rubber pad 9 is installed at the top of the trapezoidal block 10, and a spring 11 is installed below the trapezoidal block 10. By using the "U"-shaped groove 6 in cooperation with the sliding block 8, the trapezoidal block 10, the rubber pad 9, and the spring 11, when the anti-falling net 4 is inserted from one end of the "U"-shaped groove 6 and then pressed downward to move the rubber pad 9 downward, and the sliding block 10 is moved while maintaining the existing height, so that the sliding block 10 moves to the other end of the "U"-shaped groove 6 and then the anti-falling net 4 is released. At this time, the anti-falling net 4 is forced by the reaction of the spring 11 to be clamped in the groove at the other end of the "U"-shaped groove 6. Through the above operations, the anti-falling net 4 can be conveniently disassembled and installed, and at the same time, the spring 11 can provide partial buffering effect.

[0024] Among them, fixing blocks 5 are symmetrically installed on the outer walls of both sides of the anti-falling net 4, and the anti-falling net 4 is assembled and installed with the "U"-shaped groove 6 through the fixing blocks 5.

[0025] Among them, the anti-falling net 4 is entirely composed of a metal material, and a galvanized layer is coated on the surface of the anti-falling net 4.

[0026] Among them, a rabbet is opened at the top of the pressure-bearing ring 3, and the size of the rabbet is adapted to the outer diameter of the protective cover 2.

[0027] The specific usage method and function of this embodiment:

[0028] Before installing this type of inspection well, first ensure the integrity of each component. Then, use the "U"-shaped groove 6 in conjunction with the sliding block 8, trapezoidal block 10, rubber pad 9, and spring 11. When the fall arrest net 4 is inserted from one end of the "U"-shaped groove 6, press down to move the rubber pad 9 down, and move the sliding block 10 at the current height. After the sliding block 10 moves to the other end of the "U"-shaped groove 6, release the fall arrest net 4. At this time, the fall arrest net 4 is forced to engage in the groove at the other end of the "U"-shaped groove 6 due to the reaction force of the spring 11. Through the above operation, the fall arrest net 4 can be easily disassembled and installed. At the same time, the spring 11 can provide some cushioning effect. This type of fall arrest net inspection well has a novel overall design and simple structure. Through the lifting component and the design of the "U"-shaped groove, the fall arrest net can be easily disassembled and installed, improving the overall assembly speed. Therefore, it is worth promoting and using widely.

[0029] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A fall-prevention net inspection well, comprising an inspection well (1), a protective cover (2), a pressure-bearing ring (3), and a fall-prevention net (4), characterized in that: A pressure-bearing ring (3) is installed at the top of the inspection well (1), a protective cover (2) is hingedly installed on one side of the pressure-bearing ring (3), "C"-shaped grooves (6) are symmetrically formed in the inner wall of the pressure-bearing ring (3), and a fall-prevention net (4) is slidably clamped and installed between the "C"-shaped grooves (6).

2. The anti-fall net inspection well as described in claim 1, characterized in that: A chute (7) is formed at the bottom of the "C"-shaped groove (6), a jacking component is slidably installed in the chute (7), the jacking component includes a sliding block (8), a chamber is formed at the top of the sliding block (8), limiting grooves are provided on the inner wall of the chamber, a trapezoidal block (10) is slidably installed between the limiting grooves, a rubber pad (9) is installed at the top of the trapezoidal block (10), and a spring (11) is installed below the trapezoidal block (10).

3. The anti-fall net inspection well as described in claim 1, characterized in that: Fixing blocks (5) are symmetrically installed on the outer walls of both sides of the fall-prevention net (4), and the fall-prevention net (4) is assembled and installed with the "C"-shaped groove (6) through the fixing blocks (5).

4. The anti-fall net inspection well as described in claim 1, characterized in that: The whole fall-prevention net (4) is made of metal material, and a galvanized layer is coated on the surface of the fall-prevention net (4).

5. The anti-fall net inspection well as described in claim 1, characterized in that: A rabbet is formed at the top of the pressure-bearing ring (3), and the size of the rabbet is adapted to the outer diameter of the protective cover (2).