A protective device for municipal inspection wells

Abstract

This invention provides a municipal manhole protection device, including a perforated manhole cover and a warning device. The perforated manhole cover includes a fixed outer ring with a diameter larger than the manhole opening and multiple fixing strips. The fixing strips are arranged along the circumference of the fixed outer ring. Each fixing strip includes a first end and a second end that are opposite to each other. Each first end is fixedly connected to the axis of the fixed outer ring, and each second end is fixedly connected to the inner side of the fixing strip. Adjacent fixing strips and the inner ring of the fixing strip form a perforated area. The warning device includes multiple vertical rods and horizontal rods. The number of vertical rods is the same as the number of fixing strips. Each vertical rod is vertically fixed to the upper side of the fixing strip, and the lower end of each vertical rod is equidistant from the axis of the fixed outer ring. Each horizontal rod is fixed between two adjacent vertical rods. The municipal manhole protection device provided by this application can provide clear warnings and protection for the manhole opening during the inspection and repair of municipal pipeline networks, improving the visibility of the manhole protection device and preventing people from falling in.

Description

Technical Field

[0001] This invention relates to the field of construction protection equipment, and more particularly to a protective device for municipal inspection wells. Background Technology

[0002] The manhole opening is the part where the manhole casing connects to the ground, and it is usually covered with a manhole cover for protection. However, during construction work such as municipal pipeline repair, it is often necessary to open the manhole cover for construction.

[0003] Safety is paramount during construction. In the construction of existing municipal pipelines, there are often exposed manhole openings, posing a risk of falls for inspectors or those unfamiliar with the site. Current construction methods frequently use leftover building materials for covering, which, in severe weather conditions such as strong winds, rainstorms, and sandstorms, reduces visibility and lacks clear warnings and protective measures, posing significant safety hazards. Summary of the Invention

[0004] Based on the above situation, the main objective of this invention is to provide a protective device for municipal inspection wells to solve the problem that there are no obvious warning devices and the safety hazards of existing protective measures in construction.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A protective device for municipal inspection wells includes a perforated manhole cover and a warning device;

[0007] The perforated manhole cover includes a fixed outer ring with a diameter larger than that of the inspection manhole opening and multiple fixing strips. The multiple fixing strips are arranged along the circumference of the fixed outer ring. Each fixing strip includes a first end and a second end that are arranged opposite to each other. Each first end is fixedly connected to the axis of the fixed outer ring, and each second end is fixedly connected to the inner side of the fixing strip. Adjacent fixing strips and the inner ring of the fixing strip form a perforated area.

[0008] The reminder device includes multiple vertical rods and horizontal rods. The number of vertical rods is the same as the number of fixing bars. Each vertical rod is vertically fixed to the upper side of the fixing bar. The lower end of each vertical rod is equidistant from the axis of the fixing outer ring. Each horizontal rod is fixed between two adjacent vertical rods.

[0009] Preferably, each of the vertical bars is provided with a fixing component for fixing the two horizontal bars at its upper end;

[0010] The fixing assembly includes a vertical sleeve and two horizontal sleeves, with one end of each of the two horizontal sleeves fixed to the upper end of the vertical sleeve.

[0011] The vertical rod is inserted into the vertical sleeve, and the two adjacent horizontal rods are respectively inserted into the two horizontal sleeves.

[0012] Preferably, each of the fixing bars has a first fixing hole, a second fixing hole and a third fixing hole on its surface. The first fixing hole, the second fixing hole and the third fixing hole are arranged sequentially along the length of the fixing bar. Each of the vertical rods has a limit ring fixed to its side wall. The lower side of each limit ring can abut against the upper side of each fixing bar.

[0013] Each of the vertical rods can be inserted into the first fixing hole;

[0014] Alternatively, each of the vertical rods can be inserted into the second fixing hole;

[0015] Alternatively, each of the vertical rods can be inserted into the third fixing hole.

[0016] Preferably, the perforated manhole cover further includes a first auxiliary fixing ring and a second auxiliary fixing ring coaxially arranged with the fixed outer ring, and both the first auxiliary fixing ring and the second auxiliary fixing ring are fixed to the plurality of fixing strips;

[0017] The diameter of the second auxiliary retaining ring is larger than the diameter of the first auxiliary retaining ring.

[0018] Preferably, the fixed outer ring has an opening that communicates with a hollow area, and one end of the opening is rotatably connected to a buckle that can close the opening.

[0019] Preferably, the maximum straight-line distance between each of the first fixing holes and the center of the fixing outer ring is 600mm;

[0020] The maximum straight-line distance between each of the third fixing holes and the center of the fixing outer ring is 800mm.

[0021] The beneficial effects of this invention are as follows: By setting the vertical and horizontal bars on the upper side of the perforated manhole cover, a clear warning device is formed, which can provide obvious warning and protection for the manhole opening, improve the visibility of the manhole opening protection device, and prevent personnel from falling in. Furthermore, the perforated area facilitates the pumping operation of the pumping mechanism, reduces the swaying of the pumping hose, prevents hose breakage, and facilitates construction.

[0022] Other beneficial effects of the present invention will be explained in detail through the introduction of specific technical features and technical solutions in specific embodiments. Those skilled in the art should be able to understand the beneficial technical effects brought about by these technical features and technical solutions through the introduction of these technical features and technical solutions. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of a municipal inspection well protection device according to the present invention.

[0024] Figure 2 This is a schematic diagram of the structure of a perforated manhole cover for a municipal inspection well protection device according to the present invention.

[0025] Figure 3 This is a schematic diagram of the structure of a fixing component of a municipal inspection well protection device according to the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Hollowed-out manhole cover; 11. Fixed outer ring; 12. Fixing strip; 121. First end; 122. Second end; 123. First fixing hole; 124. Second fixing hole; 125. Third fixing hole; 13. Hollowed-out area; 14. First auxiliary fixing ring; 15. Second auxiliary fixing ring; 16. Opening; 161. Buckle; 2. Reminder device; 21. Horizontal bar; 22. Vertical bar; 221. Limiting ring; 23. Fixing component; 231. Vertical sleeve; 232. Horizontal sleeve. Detailed Implementation

[0028] The present invention is described below based on embodiments, but the present invention is not limited to these embodiments. In the following detailed description of the present invention, some specific details are described in detail, but well-known methods, processes, procedures, and elements are not described in detail in order to avoid obscuring the essence of the present invention.

[0029] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0030] Unless the context explicitly requires it, the words "comprising," "including," and similar terms throughout the specification and claims should be interpreted as encompassing rather than being exclusive or exhaustive; that is, meaning "including but not limited to."

[0031] In the description of this invention, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0032] Reference Figure 1-3 This invention provides a protective device for municipal inspection wells, including a perforated well cover 1 and a warning device 2. The perforated well cover 1 can be installed at the opening of the inspection well to partially cover the opening without affecting construction. The warning device 2 can be installed above the perforated well cover 1 to serve as a warning, and can clearly indicate danger even in severe weather.

[0033] The perforated manhole cover 1 includes a fixed outer ring 11 and multiple fixing strips 12. The fixed outer ring 11 is located at the opening of the inspection manhole, and its diameter is larger than that of the manhole opening. The multiple fixing strips 12 are arranged along the circumference of the fixed outer ring 11. Each fixing strip 12 includes a first end 121 and a second end 122 arranged opposite to each other. Each first end 121 is fixed to the axial position of the fixed outer ring 11, and each second end 122 is fixed to the inner side of the fixed outer ring 11. That is, the length direction of the fixing strip 12 is the same as the radial direction of the fixed outer ring 11. Adjacent fixing strips 12 form a perforated area 13 within the perforated manhole cover 1. Each fixing strip 12 has a first fixing hole 123, a second fixing hole 124, and a third fixing hole 125 on its surface. The first fixing hole 123, the second fixing hole 124, or the third fixing hole 125 can be used to fix a warning device 2, so that the warning device 2 can play a warning role. Hollowed-out manhole covers can reduce weight and material waste.

[0034] As one embodiment, the perforated manhole cover 1 also includes a first auxiliary fixing ring 14 and a second auxiliary fixing ring 15 coaxially arranged with the fixed outer ring 11. The diameter of the second auxiliary fixing ring 15 is larger than that of the first auxiliary fixing ring 14. Both the first auxiliary fixing ring 14 and the second auxiliary fixing ring 15 are fixed to multiple fixing strips 12. The first auxiliary fixing ring 14 and the second auxiliary fixing ring 15 can further enhance the strength of the perforated manhole cover 1 and further enhance the stability of the manhole opening protection device. Furthermore, the first auxiliary fixing ring 14 and the second auxiliary fixing ring 15 can separate the perforated area 13, further dividing the individual perforated area 13. During underground pumping operations, due to machine vibration, the pumping hose will rub against the manhole opening, causing the hose to break. Setting a smaller perforated area 13 can limit the swaying of the hose, prevent hose breakage, and facilitate construction.

[0035] As one embodiment, the fixed outer ring 11 has an opening 16, which communicates with its corresponding hollow area 13. One end of the opening 16 is rotatably connected to a buckle 161 capable of closing the opening 16. The rotatable connection structure between the opening 16 and the buckle 161 is existing technology and will not be described in detail here. In municipal engineering, many manhole covers are connected to the manhole openings. After opening, they are tilted and set on one side of the manhole opening. The opening 16 allows the manhole cover to be inserted into the hollow area 13 (e.g., ...). Figure 1 This allows the manhole cover protection device to be used on manholes with or without covers, making it highly versatile.

[0036] The reminder device 2 includes multiple horizontal bars 21 and vertical bars 22, the number of which is the same as the number of fixing bars 12. Each horizontal bar 21 is positioned between adjacent vertical bars 22. Each vertical bar 22 can be inserted into a first fixing hole 123, a second fixing hole 124, or a third fixing hole 125, ensuring the stability of the reminder device 2. A limiting ring 221 is fixedly attached to the side wall of each vertical bar 22, and the lower end of each vertical bar 22 extends to the lower side of the perforated manhole cover 1. The diameter of the limiting ring 221 is larger than the diameter of the vertical bar 22, and the lower side of each limiting ring 221 abuts against the upper side of each fixing bar 12, thereby limiting the position of the vertical bar 22 and fixing it in place. It should be noted that inserting the vertical rod 22 into the first fixing hole 123, the second fixing hole 124, or the third fixing hole 125 allows for adjustment of its position. The position of the vertical rod 22 can be changed according to the different diameters of the manhole opening, ensuring that the vertical rod 22 abuts against the side wall of the manhole opening, thus improving the stability of the vertical rod 22. Furthermore, the structure for fixing the vertical rod 22 does not necessarily need to be exactly this specific; any fixing structure that ensures the vertical rod 22 is vertically fixed to the upper side of the fixing strip 12 and that the lower end of each vertical rod 22 is equidistant from the axis of the fixing outer ring 11 will meet the requirements. Placing the vertical rod 22 and the horizontal rod 21 on the upper side of the perforated manhole cover 1 forms a prominent warning device 2, providing clear warnings and protection for the manhole opening, enhancing the visibility of the manhole opening protection device, and preventing people from accidentally falling in.

[0037] In one embodiment, the maximum straight-line distance 'a' between each of the first fixing holes 123 and the axis of the fixing outer ring 11 is 300mm, and the maximum straight-line distance 'b' between each of the third fixing holes 125 and the axis of the fixing outer ring 11 is 400mm. It should be noted that the maximum straight-line distance between the fixing hole and the axis of the fixing outer ring 11 is the length of the line connecting the point where the fixing hole is furthest from the axis of the fixing outer ring 11 and the axis of the fixing outer ring 11. It can be understood that the distances of the first fixing hole 123, the second fixing hole 124, and the third fixing hole 125 from the axis of the fixing outer ring 11 are not limited; it is only that the diameter of current municipal manhole covers is typically 600-800mm, and the position of the fixing holes is limited so that the lower end of the vertical rod 22, when inserted into the perforated manhole cover 1, can abut against the side wall of the manhole body.

[0038] As one embodiment, the surfaces of both the vertical bar 22 and the horizontal bar 21 can be coated with a reflective layer (not shown in the figure). This facilitates visibility in low-light environments. It is understood that the surfaces of the vertical bar 22 and the horizontal bar 21 can also be provided with other features that can enhance visibility, such as a paint finish with a more prominent color, such as a red and white striped finish.

[0039] In one embodiment, each vertical rod 22 is provided with a fixing assembly 23 at its upper end for fixing two horizontal rods 21. The fixing assembly 23 includes a vertical sleeve 231 and two horizontal sleeves 232. One end of each horizontal sleeve 232 is fixed to the upper end of the vertical sleeve 231. The upper end of the vertical rod 22 can be inserted into the vertical sleeve 231, and the horizontal rods 21 at both ends of the horizontal sleeves 232 can be inserted into the horizontal sleeves 232 respectively. The fixing assembly 23 can fix the vertical rod 22 and the two adjacent horizontal rods 21, improving the stability of the reminder device 2, and allowing for quick disassembly and replacement of the horizontal rods 21 depending on the fixing holes of the vertical rod 22.

[0040] Those skilled in the art will understand that, without conflict, the above-mentioned preferred solutions can be freely combined and superimposed.

[0041] It should be understood that the above embodiments are merely exemplary and not restrictive. Various obvious or equivalent modifications or substitutions that can be made by those skilled in the art regarding the above details without departing from the basic principles of the present invention will be included within the scope of the claims of the present invention.

Claims

1. A protective device for municipal inspection wells, characterized in that, Includes perforated manhole covers and warning devices; The perforated manhole cover includes a fixed outer ring with a diameter larger than that of the inspection manhole opening and multiple fixing strips. The multiple fixing strips are arranged along the circumference of the fixed outer ring. Each fixing strip includes a first end and a second end that are arranged opposite to each other. Each first end is fixedly connected to the axis of the fixed outer ring, and each second end is fixedly connected to the inner side of the fixing strip. Adjacent fixing strips and the inner ring of the fixing strip form a perforated area. The reminder device includes multiple vertical rods and horizontal rods. The number of vertical rods is the same as the number of fixing bars. Each vertical rod is vertically fixed to the upper side of the fixing bar. The lower end of each vertical rod is equidistant from the axis of the fixing outer ring. Each horizontal rod is fixed between two adjacent vertical rods. The fixed outer ring has an opening that communicates with a hollow area, and one end of the opening is rotatably connected to a buckle that can close the opening.

2. The municipal inspection well protection device as described in claim 1, characterized in that, Each of the vertical bars is provided with a fixing component at its upper end to fix the two horizontal bars; The fixing assembly includes a vertical sleeve and two horizontal sleeves, with one end of each of the two horizontal sleeves fixed to the upper end of the vertical sleeve. The vertical rod is inserted into the vertical sleeve, and the two adjacent horizontal rods are respectively inserted into the two horizontal sleeves.

3. A municipal inspection well protection device as described in claim 2, characterized in that, Each of the fixing bars has a first fixing hole, a second fixing hole and a third fixing hole on its surface. The first fixing hole, the second fixing hole and the third fixing hole are arranged sequentially along the length of the fixing bar. Each of the vertical bars has a limit ring fixed to its side wall. The lower side of each limit ring can abut against the upper side of each fixing bar. Each of the vertical rods can be inserted into the first fixing hole; Alternatively, each of the vertical rods can be inserted into the second fixing hole; Alternatively, each of the vertical rods can be inserted into the third fixing hole.

4. A municipal inspection well protection device as described in claim 1, characterized in that, The hollow manhole cover also includes a first auxiliary fixing ring and a second auxiliary fixing ring coaxially arranged with the fixed outer ring, and both the first auxiliary fixing ring and the second auxiliary fixing ring are fixed to the plurality of fixing strips; The diameter of the second auxiliary retaining ring is larger than the diameter of the first auxiliary retaining ring.

5. A municipal inspection well protection device as described in claim 3, characterized in that, The maximum straight-line distance between each of the first fixing holes and the axis of the fixing outer ring is 600mm; The maximum straight-line distance between each of the third fixing holes and the center of the fixing outer ring is 800mm.

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