Well lid protection device and well lid with same

Abstract

The utility model provides a manhole cover protection device and a manhole cover with the manhole cover protection device, the manhole cover protection device comprises a body, the bottom surface of the body is provided with a buckling cavity which can be buckled on a well mouth, so that the buckling cavity is buckled on the well mouth after the manhole cover is installed on the well mouth, and the top surface of the body is flush with the peripheral road surface of the well mouth after the body is paved. The well lid protection device and the well lid with the well lid protection device are simple in structure, easy to popularize, high in safety and low in maintenance cost.

Description

Technical Field

[0001] The utility model belongs to the manhole cover technology, and in particular relates to a manhole cover protection device and a manhole cover with the manhole cover protection device. Background Art

[0002] As a key component of enterprise and urban infrastructure, the safety and stability of outdoor inspection wells are directly related to enterprise and public safety. According to the requirements of the General Specification for Building Water Supply, Drainage and Water Conservation (GB55020-2021), outdoor inspection well covers should have anti-theft and anti-fall measures, and the covers should have attribute identification. In particular, inspection wells and valve wells located on the roadway should use covers and well seats with sufficient bearing capacity and good stability.

[0003] However, despite these specifications and standards, pedestrians or workers may still accidentally fall into the manhole due to the loss, damage or failure to close the manhole cover in time, resulting in serious safety accidents. The manhole covers on motorway are particularly special, with large paving volume and high construction requirements. They are easily damaged by vehicles for a long time, causing serious damage to passing vehicles, especially affecting the comfort and safety of passing vehicles.

[0004] The main reason is that the existing manhole covers are mostly laid or installed exposed and are not flush with the road surface, forming obvious bumps and depressions. Even if the manhole covers are installed almost flush with the surrounding road surface, they still have to withstand long-term, severe, and even overload loads, which can easily cause deformation and displacement, resulting in high maintenance requirements and frequent accidents. Utility Model Content

[0005] The purpose of the utility model is to overcome the safety hazards existing in the installation of existing manhole covers, so as to reduce maintenance costs and improve safety in use.

[0006] To achieve the above-mentioned purpose, the utility model provides a manhole cover protection device, including a main body, the bottom surface of the main body is provided with a snap-fitting cavity which can be snapped on the wellhead, so that after the manhole cover is installed on the wellhead, it is snapped on the wellhead, so that after the main body is paved, the top surface of the main body is flush with the road surface around the wellhead.

[0007] As a further improvement, the periphery of the body is butted against the cross section of the road surface via an expansion joint.

[0008] As a further improvement, the bottom surface of the main body is provided with a plurality of shock-absorbing supports located outside the snap-fit ​​cavity.

[0009] As a further improvement, a lifting hole is provided on the main body.

[0010] As a further improvement, a lifting ring is provided in the lifting hole.

[0011] As a further improvement, a limit pin is fixed on each of the two opposite circumferential outer walls of the lifting ring, and the free end of the limit pin is inserted into a limit groove on the hole wall of the lifting hole opposite to the free end, and the limit groove extends in the vertical direction.

[0012] As a further improvement, the lifting ring is mounted on the limiting beam, and an L-shaped fixing piece is connected to each of the left and right ends of the limiting beam. The horizontal section of the L-shaped fixing piece is fixed on the bottom surface of the main body, and the vertical section of the L-shaped fixing piece is integrally connected to the limiting beam located in the lifting hole.

[0013] A manhole cover with a manhole cover protection device comprises a manhole cover body, wherein the manhole cover body is fixed in the buckle cavity or is made integrally with the buckle cavity.

[0014] As a further improvement, the bottom surface of the main body is provided with a plurality of shock-absorbing supports located outside the snap-fit ​​cavity.

[0015] A manhole cover with a manhole cover protection device comprises a manhole cover body, wherein the manhole cover body is fixed on the top of the chamber of the buckling cavity, and the lower edge of the buckling cavity is buckled on the circumferential side wall of the manhole cover body.

[0016] The utility model has the advantages of simple structure, easy promotion, high safety and low maintenance cost.

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the manhole cover protection device.

[0019] Figure 2 This is a schematic diagram of the application of ordinary manhole covers.

[0020] Figure 3 It is a schematic diagram of the structure of a manhole cover protection device with lifting holes and lifting rings.

[0021] Figure 4 It is a schematic diagram of the lifting ring structure.

[0022] Figure 5 This is a schematic diagram of the limit slot setting.

[0023] Figure 6 It is a schematic diagram of the limit beam setting.

[0024] Figure 7 It is a schematic diagram of a manhole cover with a manhole cover protection device.

[0025] In the figure: 1. main body; 2. snap-fit ​​cavity; 3. shock-absorbing support; 4. lifting hole; 5. lifting ring; 6. limit pin; 7. limit groove; 8. limit beam; 9. manhole cover main body; 10. road surface; 11. vertical shaft; 12. ordinary manhole cover. DETAILED DESCRIPTION

[0026] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose, the specific implementation methods, structural features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] In order to overcome the safety hazards existing in the existing manhole cover installation, reduce maintenance costs and improve safety in use, this embodiment provides a Figure 1 The manhole cover protection device shown in the figure comprises a main body 1, the bottom surface of which is provided with a Figure 2 The buckle cavity 2 on the wellhead of the vertical shaft 11 (outdoor inspection well, valve well, sewer pipe well, etc.) is used to install a well cover at the wellhead. Figure 2 The currently commonly used ordinary manhole cover 12 is shown as being buckled on the manhole (that is, the ordinary manhole cover 12 is also buckled inside it), so that after the main body 1 is paved, the top surface of the main body 1 is flush with the road surface 10 around the manhole. In this way, the problem of unevenness and potholes between the manhole and the surrounding road surface after the installation of the existing manhole cover is completely eliminated. At the same time, the ordinary manhole cover 12 is effectively isolated, and effective protection of the ordinary manhole cover 12 is achieved, avoiding damage caused by long-term and high-frequency direct crushing of passing vehicles, and potential safety hazards to vehicles and pedestrians (such as safety accidents caused by damage or loss of the manhole cover), and also improving the comfort of passing vehicles with almost no bumps.

[0028] In order to further improve the comfort of vehicle passage and reduce the crushing of manhole covers (especially the vibration damage caused by bumpy crushing), in this embodiment, the periphery of the main body 1 and the cross-section of the road surface 10 are connected through expansion joints. The expansion joints here can adopt bridge expansion joints (i.e., road-bridge expansion joints). The specific structural form is selected and used according to the specific road conditions, with the principle of easy disassembly and assembly and convenient maintenance.

[0029] At the same time, in order to further enhance the protection of the manhole cover, especially when carrying a heavier load, to reduce the damage caused by rapid impact force, the present embodiment specially arranges a plurality of shock-absorbing supports 3 outside the snap-fit ​​cavity 2 on the bottom surface of the main body 1. At the same time, a shock-absorbing steel ring or shock-absorbing steel plate can also be arranged on the top surface of the snap-fit ​​cavity 2 to snap on the ordinary manhole cover 12 to enhance the protection of the ordinary manhole cover 12.

[0030] In order to facilitate installation or later maintenance or well opening operations, the present embodiment is provided with a lifting hole 4 on the body 1, and a lifting ring 5 is provided in the lifting hole 4, and Figure 4A stop pin 6 is fixed to each of the two opposite circumferential outer walls of the lifting ring 5, and the free end of the stop pin 6 is inserted into Figure 5 The limiting groove 7 on the hole wall of the lifting hole 4 opposite to the free end is shown, and the limiting groove 7 extends in the vertical direction. In this way, the lifting ring 5 is stored in the lifting hole 4. When working, the lifting ring 7 is partially pulled out from the lifting hole 4, and the lifting is completed by a crowbar or lifting equipment.

[0031] Figure 6 Another form of lifting structure is also provided, that is, the lifting ring 5 is sleeved on the limiting beam 8, and the left and right ends of the limiting beam 8 are respectively connected to an L-shaped fixing piece, the horizontal section of the L-shaped fixing piece is fixed on the bottom surface of the body 1, and the vertical section of the L-shaped fixing piece is integrally connected to the limiting beam 8 located in the lifting hole 4. The advantage of this structure is that the limiting beam 8 is easy to disassemble and assemble.

[0032] Based on the above embodiments, this embodiment provides a Figure 7 The manhole cover shown is actually Figure 1 A manhole cover body 9 is arranged at the top of the snap-fit ​​cavity 2 in the shown manhole cover protection device, that is, the manhole cover body 9 is fixed in the snap-fit ​​cavity 2 or is made integrally with the snap-fit ​​cavity 2. In this way, there is no need to configure a manhole cover separately, which reduces the workload of disassembly and subsequent maintenance and improves working efficiency.

[0033] Of course, it is also possible to simply provide another form of manhole cover. Figure 1 Compared with the manhole cover protection device shown in FIG. 1 , only the buckle cavity 2 needs to be replaced with Figure 7 The manhole cover body 9 shown in the figure can be fixed to the top of the chamber of the buckle cavity 2, and the lower edge of the buckle cavity 2 is buckled on the circumferential side wall of the manhole cover body 9 to form an integral reinforced manhole cover. When used, the entire device is directly buckled on Figure 2 The wellhead of the vertical shaft 11 shown will suffice.

[0034] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A manhole cover protection device, comprising a body (1), characterized in that: The bottom surface of the body (1) is provided with a snap-fitting cavity (2) that can be snapped onto the wellhead, so that after the manhole cover is installed on the wellhead, it can be snapped onto the wellhead, so that after the body (1) is paved, the top surface of the body (1) is flush with the road surface around the wellhead.

2. The manhole cover protection device according to claim 1, characterized in that: The periphery of the main body (1) is butted against the cross section of the road surface via an expansion joint.

3. The manhole cover protection device according to claim 1 or 2, characterized in that: The bottom surface of the main body (1) is provided with a plurality of shock-absorbing supports (3) located outside the snap-fit ​​cavity (2).

4. The manhole cover protection device according to claim 1 or 2, characterized in that: The main body (1) is provided with a lifting hole (4).

5. The manhole cover protection device according to claim 4, characterized in that: A lifting ring (5) is arranged in the lifting hole (4).

6. The manhole cover protection device according to claim 5, characterized in that: A limit pin (6) is fixed on each of the two opposite circumferential outer walls of the lifting ring (5), and the free end of the limit pin (6) is inserted into a limit groove (7) on the hole wall of the lifting hole (4) opposite to the free end, and the limit groove (7) extends in the vertical direction.

7. The manhole cover protection device according to claim 5, characterized in that: The lifting ring (5) is mounted on the limiting beam (8), and the left and right ends of the limiting beam (8) are respectively connected to an L-shaped fixing piece, the horizontal section of the L-shaped fixing piece is fixed on the bottom surface of the main body (1), and the vertical section of the L-shaped fixing piece is integrally connected to the limiting beam (8) located in the lifting hole (4).

8. A manhole cover having the manhole cover protection device according to claim 1 or 2, comprising a manhole cover body (9), characterized in that: The manhole cover body (9) is fixed in the buckling cavity (2) or is integrally formed with the buckling cavity (2).

9. The manhole cover according to claim 8, characterized in that: The bottom surface of the main body (1) is provided with a plurality of shock-absorbing supports (3) located outside the snap-fit ​​cavity (2).

10. A manhole cover having the manhole cover protection device according to claim 1 or 2, comprising a manhole cover body (9), characterized in that: The manhole cover body (9) is fixed to the top of the chamber of the buckling cavity (2), and the lower edge of the buckling cavity (2) is buckled on the circumferential side wall of the manhole cover body (9).

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