Municipal water supply and drainage inspection well protection device

Abstract

The utility model relates to the technical field of inspection well protection, and discloses a municipal water supply and drainage inspection well protection device which comprises an installation ring, a supporting protection plate is coaxially arranged in the middle of the installation ring and is of a hollow structure, a plurality of protection rods are arranged at the bottom of the supporting protection plate in the circumferential direction of the supporting protection plate at intervals, and the protection rods are movably connected with the installation ring. In an initial state, the supporting protection plate is positioned in the mounting ring; the anti-falling device can be installed in an inspection well to provide an anti-falling guarantee, can be taken out when rainwater is heavy, guarantees smooth drainage, provides protection and warning, and is simple in structure, convenient to operate and use and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole protection, in particular to a municipal water supply and drainage manhole protection device. Background Art

[0002] Manholes, also known as inspection wells, are an important part of urban infrastructure and are mainly used for the inspection, maintenance and installation of underground pipelines such as water supply, drainage, gas, electricity, and communications. In order to improve safety, many manholes in the existing technology are equipped with anti-fall nets to ensure the personal safety of pedestrians and avoid accidents. However, the existing anti-fall net structure has a relatively simple function and can only meet the anti-fall demand. When there is a lot of water flow in rainy weather, rainwater is only discharged through the through holes on the manhole cover. There is often a situation where the discharge is not timely, causing a large amount of rainwater to accumulate on the road surface, seriously affecting the traffic on the road. If the manhole cover is opened for drainage, there is still a great safety hazard if the protection provided by the anti-fall net alone is used. Therefore, there is an urgent need for a municipal water supply and drainage manhole protection device that can meet the anti-fall requirements and provide protection and warnings when the manhole cover is opened for drainage. Utility Model Content

[0003] The purpose of this utility model is to provide a municipal water supply and drainage manhole protection device, which can be installed in the manhole to provide anti-fall protection, and can be taken out when the rain is heavy to ensure smooth drainage while providing protection and warning. It has a simple structure, is easy to operate and use, and is highly practical.

[0004] The utility model adopts the following technical solutions:

[0005] A municipal water supply and drainage manhole protection device includes a mounting ring, a support protection plate is coaxially arranged in the middle of the mounting ring, the support protection plate is a hollow structure, and a plurality of protection rods are arranged at intervals along its circumferential direction at its bottom, and the protection rods are movably connected to the mounting ring; in an initial state, the support protection plate is located inside the mounting ring.

[0006] Preferably, a mounting protrusion is provided on the inner side of the mounting ring, and a mounting hole for the protective rod to movably pass through is opened on the mounting protrusion.

[0007] Preferably, at least two of the symmetrical protective rods are provided with positioning pieces, and the position of the positioning pieces is adjustable so as to be able to flexibly pass into or out of the mounting holes.

[0008] Preferably, the positioning member includes a plurality of positioning plates elastically arranged on the protective rod, and in an initial state, each of the positioning plates is arranged obliquely downward with the protective rod as the axis.

[0009] Preferably, the protective rod is provided with a support sleeve which is adjustable along its length direction, and the positioning plate is elastically connected to the support sleeve.

[0010] Preferably, the protective rod is provided with an external thread, and the support sleeve is threadedly connected to the protective rod.

[0011] Preferably, the mounting hole is opened in the form of a countersunk hole.

[0012] Preferably, the lower portion of the mounting hole is configured to be truncated cone-shaped, and the upper portion is configured to be cylindrical.

[0013] Preferably, a positioning tooth groove is vertically provided in the upper cylindrical structure of the mounting hole at a position opposite to the positioning plate.

[0014] Preferably, a mounting tube is provided in the middle of the support protective plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention can play a role in preventing falling after the mounting ring is installed in the manhole by arranging a support protective plate in the mounting ring, thereby eliminating safety hazards; the support protective plate is movably connected to the mounting ring through the protective rod, and when drainage is required, the support protective plate can be pulled up to move the support protective plate a certain distance out of the manhole, and the gap in the protective rod provides flow space for the water to achieve rapid discharge of rainwater into the manhole. At the same time, the protective rod can effectively play a protective role and provide warnings for pedestrians and vehicles to prevent pedestrians or vehicles from accidentally falling into the manhole, thereby ensuring safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of an embodiment of the present application;

[0017] Figure 2 A partial cross-sectional view of the installation flange of an embodiment of the present application. DETAILED DESCRIPTION

[0018] The following is a clear and complete description of the present invention with reference to the accompanying drawings and embodiments:

[0019] like Figures 1 to 2As shown, the utility model of a municipal water supply and drainage manhole protection device includes a mounting ring 1, which is used to be installed on the inner wall of the manhole below the manhole cover. A support guard plate 2 is coaxially arranged in the middle of the mounting ring 1 to prevent pedestrians from accidentally falling into the manhole when the manhole cover is opened or damaged; the support guard plate 2 is a hollow structure to ensure that it plays a protective role while ensuring the normal discharge of water flow. A plurality of protection rods 3 are arranged at intervals along the circumferential direction of the bottom of the support guard plate 2. The protection rods 3 are aligned with the mounting ring 1. The mounting ring 1 is movably connected; in the initial state, the support and protection plate 2 is located in the mounting ring 1, forming a protective structure to prevent falling, and the protection rod 3 extends downward along the axis of the manhole; when the rain is heavy, the manhole cover can be opened, and then the support and protection plate 2 can be lifted to a certain height outside the manhole and positioned and fixed. The multiple gaps formed by the multiple protection rods 3 can be used to provide a discharge channel for the water flow to ensure that the water flow is smoothly discharged into the manhole. At the same time, the multiple protection rods 3 can also form a protective structure to provide warnings for pedestrians and vehicles and ensure traffic safety. Preferably, in this example, a mounting tube 4 is provided in the middle of the support and protection plate 2, and a warning light can be installed on the mounting tube 4 to provide a safety warning for pedestrians and vehicles. At the same time, a reflective marker can be pasted on the protection rod 3 to cooperate with the warning light to ensure traffic safety.

[0020] Furthermore, a mounting flange 5 is provided on the inner side of the mounting ring 1, and a mounting hole 6 is provided on the mounting flange 5 for the movable insertion of the guard bar 3. The outer diameter of the mounting flange 5 preferably matches the outer diameter of the support guard plate 2, and the vertical height of the mounting flange 5 is equal to the thickness of the support guard plate 2. This ensures that the top of the support guard plate 2 is flush with the top of the mounting ring 1 after being placed on the mounting flange 5. This ensures that if a pedestrian accidentally falls into the manhole and steps on the mounting ring 1 and the support guard plate 2, they will not be injured due to the height difference, thereby reducing the probability of secondary injury to the pedestrian.

[0021] Furthermore, in this embodiment, at least two symmetrical guard bars 3 are provided with positioning members. The positioning members are adjustable so that they can be movably inserted into and removed from the mounting holes 6. This not only positions the support guard plate 2, ensuring its stability, but also facilitates its removal from the mounting ring 1. Specifically, the positioning members include a plurality of positioning plates 7 elastically mounted on the guard bars 3. In the initial state, each positioning plate 7 is positioned diagonally downward with the guard bar 3 as its axis. The plurality of positioning plates 7 are in an outwardly divergent state. When installing, the positioning plates 7 can be gathered toward the axis direction of the protective rod 3 so that it can pass through the mounting hole 6 smoothly. After the positioning plates 7 pass through the mounting hole 6, they are reset and opened under the elastic restoring force. At this time, the size formed by the bottom of the plurality of positioning plates 7 is larger than the diameter of the mounting hole 6, so that the installation connection between the support protective plate 2 and the mounting ring 1 can be realized. When the support protective plate 2 needs to be taken out for drainage, the support protective plate 2 can be pulled upward to drive the protective rod 3 to move upward. The positioning plates 7 contact the mounting hole 6 under the tension and are restricted by the mounting hole 6 to shrink toward the axis of the protective rod 3 to realize smooth removal from the mounting hole 6. The mounting hole 6 in this example is preferably opened in the form of a countersunk hole so that the positioning plate 7 enters the space above the mounting hole 6 and abuts against its inner wall, thereby realizing the positioning of the support protective plate 2 during the drainage operation.

[0022] Preferably, the lower portion of the mounting hole 6 is configured as an inverted truncated cone, and the upper portion is configured as a cylindrical shape, with the maximum cross-sectional diameter of the truncated cone being smaller than the cross-sectional diameter of the cylindrical shape. The truncated cone shape of the lower portion of the mounting hole 6 facilitates smooth insertion and exit of the positioning plate 7 from the mounting hole 6 when the support guard plate 2 is moved up and down. The upper cylindrical structure provides a positioning and support platform for the positioning plate 7, thereby ensuring the stability of the support guard plate 2 and the guard bar 3 during drainage. In addition, a positioning tooth groove 8 is vertically provided within the upper cylindrical structure of the mounting hole 6 at a position opposite the positioning plate 7. The positioning tooth groove 8 further limits the positioning plate 7, ensuring the stability of the guard bar 3 and the support guard plate 2 during drainage.

[0023] Furthermore, the protective rod 3 is provided with a support sleeve 9 that can be adjusted along its length direction, and the positioning plate 7 is elastically connected to the support sleeve 9. Specifically, the support sleeve 9 is provided with a mounting groove, and the positioning plate 7 is movably arranged in the mounting groove through a hinge rod, and a torsion spring is provided on the hinge rod to realize the elastic connection between the positioning plate 7 and the support sleeve 9. The adjustable setting of the support sleeve 9 and the protective rod 3 can adjust the position of the positioning plates 7 on the two protective rods 3 according to different usage requirements to ensure the stability of the protective rod 3 and the support protective plate 2; specifically, when it is necessary to remove the support protective plate 2 from the manhole, the positioning plates 7 on different protective rods 3 can be adjusted to different height positions through the support sleeve 9, so that part of the support sleeve 9 drives the positioning plates 7 to be distributed at the upper end of the mounting hole 6, and the other part of the support sleeve 9 drives the positioning plates 7 to be distributed at the lower end of the mounting hole 6, further ensuring the stability of the protective rod 3 and the support protective plate 2. The support sleeve 9 can be adjusted on the protective rod 3, allowing the height of the protective rod 3 removed from the manhole to be flexibly adjusted by adjusting the position of the support sleeve 9, meeting different usage requirements and enhancing the practicality of the present invention. Preferably, the protective rod 3 is provided with external threads, and the support sleeve 9 is internally threaded, with the support sleeve 9 and the protective rod 3 being threadedly connected. Furthermore, the protective rod 3 and the support and protective plate 2 are also preferably threaded, allowing for removal of the protective rod 3 for targeted replacement.

[0024] The utility model securely mounts the mounting ring 1 inside the manhole, and utilizes the support and protection plate 2 to provide fall protection, thereby reducing potential safety hazards. When heavy rainwater requires the manhole cover to be opened for drainage, the support and protection plate 2 can be moved upward, driving the protection rods 3 upward, and positioning is achieved by the positioning plate 7. Water flows into the manhole through the discharge channel formed by the gaps between adjacent protection rods 3, improving drainage efficiency while providing protection and warning to pedestrians and vehicles, ensuring traffic safety. The utility model is easy to use and highly practical.

Claims

1. A municipal water supply and drainage manhole protection device, characterized by: It includes a mounting ring, a support protective plate is coaxially arranged in the middle of the mounting ring, the support protective plate is a hollow structure, and a plurality of protective rods are arranged at intervals along its circumferential direction at its bottom, and the protective rods are movably connected to the mounting ring; in the initial state, the support protective plate is located inside the mounting ring.

2. The municipal water supply and drainage manhole protection device according to claim 1 is characterized in that: The inner side of the mounting ring is provided with a mounting convex edge, and the mounting convex edge is provided with a mounting hole for the protective rod to movably pass through.

3. The municipal water supply and drainage manhole protection device according to claim 2, characterized in that: At least two symmetrical protective rods are provided with positioning pieces, and the positions of the positioning pieces are adjustable so as to be able to flexibly pass through or out of the mounting holes.

4. The municipal water supply and drainage manhole protection device according to claim 3 is characterized in that: The positioning member includes a plurality of positioning plates elastically arranged on the protective rod. In an initial state, each of the positioning plates is arranged obliquely downward with the protective rod as the axis.

5. The municipal water supply and drainage manhole protection device according to claim 4 is characterized in that: The protective rod is provided with a support sleeve which can be adjusted along the length direction thereof, and the positioning plate is elastically connected to the support sleeve.

6. The municipal water supply and drainage manhole protection device according to claim 5, characterized in that: The protection rod is provided with an external thread, and the support sleeve is threadedly connected to the protection rod.

7. The municipal water supply and drainage manhole protection device according to claim 4, characterized in that: The mounting hole is opened in the form of a countersunk hole.

8. The municipal water supply and drainage manhole protection device according to claim 7, characterized in that: The lower portion of the mounting hole is configured to be truncated cone-shaped, and the upper portion is configured to be cylindrical.

9. The municipal water supply and drainage manhole protection device according to claim 8, characterized in that: A positioning tooth groove is vertically arranged at a position opposite to the positioning plate in the upper cylindrical structure of the mounting hole.

10. The municipal water supply and drainage manhole protection device according to claim 1, characterized in that: A mounting pipe is provided in the middle of the supporting protective plate.

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