Well lid with anti-falling structure

Abstract

The utility model discloses a well lid with an anti-falling structure, which comprises a well lid shell, an anti-falling assembly is arranged on the inner side of the well lid shell, the anti-falling assembly is used for preventing the well lid from falling, the anti-falling assembly comprises a limiting ring, a limiting column and a connecting chain, the limiting ring is fixed on the inner side of the well lid shell, and the limiting column is fixed on the limiting ring. Limiting columns are installed on the top of the limiting ring, a connecting chain is installed on the inner wall of the well lid shell, a well lid body is arranged on the top of the limiting ring, limiting holes are symmetrically formed in the top of the well lid body, and the limiting holes correspond to the limiting columns. The cover shell and the well cover body are further connected through the connecting chain, and even if the well cover body falls downwards, the well cover body cannot fall to the bottom under the action of the connecting chain.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole covers, in particular to a manhole cover with an anti-falling structure. Background Art

[0002] There will be many underground pipelines in urban construction, such as sewers, underground gas pipelines, water pipes, power pipelines, communication pipelines, national defense pipelines, etc. These pipelines must have an outlet leading to the ground at intervals, and the manhole cover is used to close the outlet.

[0003] Patent document CN220058102U discloses an anti-fall manhole cover. "The anti-fall manhole cover in the patent document is supported from the bottom by a support layer, which can prevent the manhole cover body from being damaged and falling. However, the support layer is installed inside, which makes it inconvenient for personnel to open the manhole cover and enter the underground pipeline through the wellhead. Utility Model Content

[0004] One purpose of the present application is to provide a manhole cover with an anti-fall structure to solve the technical problem in the prior art that the supporting layer is installed inside, making it inconvenient for personnel to open the manhole cover and enter the underground pipeline through the wellhead.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a manhole cover with an anti-fall structure, comprising a manhole cover shell, an anti-fall assembly is installed on the inner side of the manhole cover shell, the anti-fall assembly is used to prevent the manhole cover from falling, the anti-fall assembly comprises a limit ring, a limit column and a connecting chain, the limit ring is fixed to the inner side of the manhole cover shell, the limit column is installed on the top of the limit ring, the connecting chain is installed on the inner wall of the manhole cover shell, the manhole cover body is arranged on the top of the limit ring, the top of the manhole cover body is symmetrically opened with limit holes, and the limit holes correspond to the limit columns.

[0006] Preferably, a reflective layer is provided on the top of the limiting ring.

[0007] Preferably, a disassembly groove is symmetrically provided on the top of the manhole cover body, a connecting ring is connected to the bottom of the manhole cover body, and the connecting ring is fixedly connected to the connecting chain.

[0008] Preferably, a fixed edge is installed on the outer side of the manhole cover shell.

[0009] Preferably, a connecting plate is symmetrically installed at the bottom of the manhole cover shell, and a mounting block is installed on the inner side of the connecting plate.

[0010] Preferably, a first protective plate is installed on the top of the mounting block, and a docking groove is provided on the top of the first protective plate.

[0011] Preferably, a second protective plate is installed on the top of the docking groove, the second protective plate is fixed to the first protective plate in a cross shape, and the top of the second protective plate is fixed to the first protective plate by fixing bolts.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. When the manhole cover body of the utility model is installed, the manhole cover body is supported by a limiting ring so that the manhole cover body will not fall. At the same time, the limiting hole on the manhole cover body corresponds to the limiting column, so that the limiting column passes through the top of the manhole cover body, thereby limiting the manhole cover body and preventing the manhole cover body from rotating at will. Then the manhole cover shell and the manhole cover body are connected by a connecting chain. Even if the manhole cover body falls downward, the connecting chain will prevent the manhole cover body from falling to the bottom.

[0014] 2. In the utility model, the cross-connection of the first protective plate and the second protective plate is connected by a docking groove and then fixed by fixing bolts. The cross-installed first protective plate and the second protective plate are used to prevent the manhole cover body from being lost, causing people to fall into the underground pipeline, making the underground pipeline outlet safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the manhole cover shell of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the manhole cover body of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the first protective plate of the utility model;

[0019] Figure 5 For the utility model Figure 1 Schematic diagram of the structure at point A in the middle.

[0020] In the figure: 1. Manhole cover shell; 2. Fixed edge; 3. Limiting ring; 4. Reflective layer; 5. Limiting column; 6. Connecting chain; 7. Manhole cover body; 8. Disassembly groove; 9. Limiting hole; 10. Connecting ring; 11. Connecting plate; 12. Mounting block; 13. First protective plate; 14. Docking groove; 15. Second protective plate; 16. Fixing bolt. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1 , Figure 2 and Figure 3 , an embodiment provided by the utility model: a manhole cover with an anti-fall structure;

[0025] It includes a manhole cover shell 1 and an anti-falling assembly. The anti-falling assembly is installed on the inner side of the manhole cover shell 1. The anti-falling assembly is used to prevent the manhole cover from falling. The anti-falling assembly includes a limiting ring 3, a limiting column 5 and a connecting chain 6. The limiting ring 3 is fixed to the inner side of the manhole cover shell 1. The limiting column 5 is installed on the top of the limiting ring 3. The connecting chain 6 is installed on the inner wall of the manhole cover shell 1. The manhole cover body 7 is arranged on the top of the limiting ring 3. The limiting holes 9 are symmetrically opened on the top of the manhole cover body 7, and the limiting holes 9 correspond to the limiting columns 5. The top of the limiting ring 3 is provided with a reflective layer 4. The top of the manhole cover body 7 is symmetrically opened with a disassembly groove 8. The bottom of the manhole cover body 7 is connected with a connecting ring 10, and the connecting ring 10 is fixedly connected to the connecting chain 6. The outer side of the manhole cover shell 1 is installed with a fixed edge 2.

[0026] The manhole cover shell 1 is used to be fixed on the outside of the outlet, and also provides a position for the installation and use of the manhole cover body 7. The manhole cover shell 1 is fixed by the fixed edge 2, and the manhole cover shell 1 is fixed on the inner side of the underground pipeline outlet, and then the manhole cover body 7 is installed so that the manhole cover body 7 closes the pipeline outlet. When the manhole cover body 7 is installed, the manhole cover body 7 is supported by the limit ring 3 so that the manhole cover body 7 will not fall. At the same time, the limit hole 9 opened on the manhole cover body 7 corresponds to the limit column 5, so that the limit column 5 passes through the top of the manhole cover body 7, thereby limiting the manhole cover body 7 so that the manhole cover body 7 will not rotate at will. Then the manhole cover shell 1 and the manhole cover body 7 are also connected by a connecting chain 6. Even if the manhole cover body 7 falls downward, the manhole cover body 7 will not fall to the bottom under the action of the connecting chain 6. The disassembly groove 8 is used to disassemble the manhole cover body 7. The reflective layer 4 can reflect light. If the manhole cover body 7 is lost, it can remind passers-by to avoid danger caused by passers-by not finding it.

[0027] See also Figure 1 , Figure 4 and Figure 5 , an embodiment provided by the utility model: a manhole cover with an anti-fall structure;

[0028] It includes a connecting plate 11 and a first protective plate 13. The connecting plate 11 is symmetrically installed at the bottom of the manhole cover shell 1. A mounting block 12 is installed on the inner side of the connecting plate 11. The first protective plate 13 is installed on the top of the mounting block 12. A docking groove 14 is opened on the top of the first protective plate 13. A second protective plate 15 is installed on the top of the docking groove 14. The second protective plate 15 is fixed to the first protective plate 13 in a cross shape. The top of the second protective plate 15 is fixed to the first protective plate 13 by a fixing bolt 16.

[0029] The connecting plate 11 provides an installation position for the mounting block 12, and the mounting block 12 provides a position for the installation of a first protective plate 13 installed longitudinally and a second protective plate 15 installed transversely. The cross-connection between the first protective plate 13 and the second protective plate 15 is connected by a docking groove 14 and then fixed by fixing bolts 16. The cross-installed first protective plate 13 and the second protective plate 15 are used to prevent the manhole cover body 7 from being lost, causing people to fall into the underground pipeline, making the underground pipeline exit safer.

[0030] Working principle: Before using the manhole cover with an anti-fall structure, you should first check whether there are any problems that affect the use of the manhole cover with an anti-fall structure. First, install the manhole cover shell 1 at the outlet of the underground pipeline through the fixed edge 2, and then install the manhole cover body 7 inside the manhole cover shell 1. The manhole cover shell 1 and the manhole cover body 7 are connected by a connecting chain 6 to prevent the manhole cover body 7 from falling into the underground passage. At the same time, the bottom of the manhole cover body 7 is protected by a first protective plate 13 and a second protective plate 15, so that the outlet of the underground pipeline closed by the manhole cover is safer to prevent people from falling.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A manhole cover with an anti-fall structure, comprising a manhole cover shell (1), characterized in that: An anti-falling assembly is installed on the inner side of the manhole cover shell (1), and the anti-falling assembly is used to prevent the manhole cover from falling. The anti-falling assembly comprises a limiting ring (3), a limiting column (5) and a connecting chain (6). The limiting ring (3) is fixed on the inner side of the manhole cover shell (1), the limiting column (5) is installed on the top of the limiting ring (3), and the connecting chain (6) is installed on the inner wall of the manhole cover shell (1). The manhole cover body (7) is arranged on the top of the limiting ring (3), and the limiting holes (9) are symmetrically opened on the top of the manhole cover body (7), and the limiting holes (9) correspond to the limiting columns (5).

2. The manhole cover with an anti-fall structure according to claim 1, characterized in that: A reflective layer (4) is provided on the top of the limiting ring (3).

3. The manhole cover with an anti-fall structure according to claim 1, characterized in that: The top of the manhole cover body (7) is symmetrically provided with a disassembly groove (8), the bottom of the manhole cover body (7) is connected with a connecting ring (10), and the connecting ring (10) is fixedly connected to the connecting chain (6).

4. The manhole cover with an anti-fall structure according to claim 1, characterized in that: A fixed edge (2) is installed on the outer side of the manhole cover shell (1).

5. The manhole cover with an anti-falling structure according to claim 4, characterized in that: A connecting plate (11) is symmetrically mounted on the bottom of the manhole cover shell (1), and a mounting block (12) is mounted on the inner side of the connecting plate (11).

6. The manhole cover with an anti-falling structure according to claim 5, characterized in that: A first protective plate (13) is installed on the top of the installation block (12), and a docking groove (14) is provided on the top of the first protective plate (13).

7. The manhole cover with an anti-falling structure according to claim 6, characterized in that: A second protective plate (15) is installed on the top of the docking groove (14); the second protective plate (15) is fixed to the first protective plate (13) in a cross shape; the top of the second protective plate (15) is fixed to the first protective plate (13) by a fixing bolt (16).

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