Water supply and drainage fire-fighting inspection shaft

Abstract

The utility model discloses a water supply and drainage fire-fighting inspection shaft, which relates to the technical field of water supply and drainage engineering and comprises a cement base, a cement shaft and a cement cover plate, the cement shaft is mounted on the cement base, and the cement cover plate is mounted on the cement shaft. The well mouth cover is installed in the well mouth cover ring in a rotating mode and can be opened only by rotating the well mouth cover to the initial position again, so that the well mouth cover can be prevented from being flushed away when being impacted by flood, pedestrians are prevented from falling into a well or vehicle wheels are prevented from falling into the well mouth to cause danger, and the well mouth cover is safer. The splicing grooves and the splicing protrusions are arranged, the splicing protrusions and the splicing protrusions are designed in a trapezoid mode, splicing can be firmer through the design, compared with a plane design, the effective bonding area is larger, bonding of all layers of a shaft is firmer, and then the shaft is firmer and safer.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply and drainage engineering, in particular to a water supply and drainage fire inspection wellbore. Background Technique

[0002] Inspection wells are set up for the maintenance and convenient installation of power supply, water supply, drainage, sewage discharge, communication, cable TV, gas pipes, street lamp lines, etc. of urban underground infrastructure. Generally, they are located at pipe intersections, turning points, pipe diameter or slope change points, and at certain intervals on straight pipe sections. They are auxiliary structures for facilitating regular inspections. An inspection well consists of a well seat, a wellbore, a manhole cover and related accessories, etc., and is a well-shaped structure for dredging and inspecting the well.

[0003] After retrieval, the patent authorization announcement number CN 211037054 U discloses a water supply and drainage fire inspection wellbore, "including a fire top cover and a top layer wellbore. The fire top cover is installed at the upper end of the top layer wellbore. The lower end of the top layer wellbore is connected to a middle layer wellbore. The lower end of the middle layer wellbore is connected to a bottom layer wellbore. Drainage through pipes are arranged at the left and right ends of the bottom layer wellbore." However, the manhole cover of the above wellbore completely relies on its own gravity to maintain stability. When encountering floods, the gravity of the manhole cover is smaller than the impact force of the flood, and it is very easy to be washed away by the flood, which is likely to cause safety accidents when pedestrians and vehicles pass by. Content of the Utility Model

[0004] The purpose of the utility model is to provide a water supply and drainage fire inspection wellbore to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A water supply and drainage fire inspection wellbore includes a cement base, a cement wellbore and a cement cover plate. The cement base is provided with the cement wellbore, and the cement wellbore is provided with the cement cover plate. Both the cement base and the cement wellbore are provided with splicing groove bodies. The bottom surfaces of the cement wellbore and the cement cover plate are both provided with splicing protrusions adapted to the splicing groove bodies. The cement base and the cement wellbore are bonded with cement, and the cement cover plate is provided with a well opening. A well cover ring is installed in the well opening, and a well cover is installed in the well cover ring.

[0007] As a further scheme of the utility model: Two mounting heads are symmetrically arranged on the side of the well cover. Mounting openings adapted to the mounting heads are opened on the well cover ring.

[0008] As a still further scheme of the utility model: An annular groove body is opened on the inner wall of the well cover ring. The size of the well cover is smaller than the size of the upper notch of the annular groove body and larger than the size of the lower notch of the annular groove body.

[0009] As a further solution of the present utility model: a threaded ring is installed at the bottom of the wellhead cover, and a filter screen cylinder is installed on the threaded ring.

[0010] As a further solution of the present utility model: connection ports for connecting to other pipelines are provided around the cement base.

[0011] As a further solution of the present utility model: climbing ladders are installed on the inner walls of both the cement wellbore and the cement base.

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

[0013] In the present utility model, by providing a wellhead cover ring and a wellhead cover, the wellhead cover is installed in the wellhead cover ring by rotation, and it can only be opened by rotating the wellhead cover back to the initial position again. This can prevent the wellhead cover from being washed away when impacted by flood, avoid passers-by falling into the well or vehicle wheels getting stuck in the wellhead and causing danger, making the present utility model safer.

[0014] In the present utility model, by providing a splicing groove body and a splicing protrusion, both the splicing protrusions are designed in a trapezoidal shape. Such a design can make the splicing more firm, and compared with the flat design, the present utility model has a larger effective bonding area, making the bonding of each layer of the wellbore more firm, and further making the wellbore more firm and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of a water supply and drainage fire inspection wellbore.

[0016] Figure 2 It is a water supply and drainage fire inspection wellbore Figure 1 The enlarged structural view of part A in it.

[0017] Figure 3 It is a water supply and drainage fire inspection wellbore Figure 2 The schematic structural diagram of the wellhead cover ring and the wellhead cover in it.

[0018] 1. Cement base; 2. Cement wellbore; 3. Cement cover plate; 4. Connection port; 5. Climbing ladder; 6. Splicing groove body; 7. Splicing protrusion; 8. Wellhead; 9. Wellhead cover ring; 10. Wellhead cover; 11. Threaded ring; 12. Filter screen cylinder; 13. Annular groove body; 14. Installation port; 15. Installation head. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figure 1 , in the embodiments of the present utility model, a water supply and drainage fire inspection wellbore includes a cement base 1, a cement wellbore 2 and a cement cover plate 3. The cement wellbore 2 is installed on the cement base 1, and the cement cover plate 3 is installed on the cement wellbore 2. Both the cement base 1 and the cement wellbore 2 are provided with splicing groove bodies 6, and the bottom surfaces of the cement wellbore 2 and the cement cover plate 3 are both provided with splicing protrusions 7 adapted to the splicing groove bodies 6. The cement base 1 and the cement wellbore 2, as well as the cement wellbore 2 and the cement cover plate 3, are all bonded with cement. Connection ports 4 for connecting with other pipes are provided around the cement base 1.

[0021] Please refer to Figures 2-3 , an inspection well opening 8 is provided on the cement cover plate 3. An inspection well cover ring 9 is installed in the inspection well opening 8, and an inspection well cover 10 is installed in the inspection well cover ring 9. Two mounting heads 15 are symmetrically arranged on the side of the inspection well cover 10. Mounting openings 14 adapted to the mounting heads 15 are provided on the inspection well cover ring 9. An annular groove body 13 is provided on the inner wall of the inspection well cover ring 9. The size of the inspection well cover 10 is smaller than the size of the upper notch of the annular groove body 13 and larger than the size of the lower notch of the annular groove body 13. Such a design can facilitate the installation of the inspection well cover 10.

[0022] Please refer to Figure 2 , a threaded ring 11 is installed at the bottom of the inspection well cover 10, and a filter screen cylinder 12 is installed on the threaded ring 11. The filter screen cylinder 12 can intercept impurities in the water flowing in from the inspection well cover 10 to prevent the impurities from entering the cement base 1 and causing blockage of the connection ports 4.

[0023] Please refer to Figure 1 , climbing ladders 5 are installed on the inner walls of both the cement wellbore 2 and the cement base 1. The provision of the climbing ladders 5 can facilitate personnel to enter the wellbore for inspection.

[0024] The working principle of the present utility model is:

[0025] In use, first connect the cement base 1 with other water supply and drainage pipes, then lay a layer of cement along the upper edge of the cement base 1 and install the cement wellbore 2, then lay a layer of cement along the upper edge of the cement wellbore 2 and install the cement cover plate 3, and finally lay a layer of cement on the wellhead 8 and install the wellhead cover ring 9 on the cement cover plate 3. When installing the wellhead cover 10, first lift the wellhead cover 10 and align the installation head 15 on the wellhead cover 10 with the installation port 14 and place it into the wellhead cover ring 9, then rotate the wellhead cover 10 to drive the installation head 15 into the annular groove body 13, and use the annular groove body 13 to limit the up and down movement of the installation head 15 to prevent the wellhead cover 10 from being washed away by water. When it is necessary to open the wellhead cover 10 for fire inspection inside the wellbore, just rotate the wellhead cover 10 so that the installation head 15 on the wellhead cover 10 coincides with the installation port 14, then the wellhead cover 10 can be lifted upward, and then personnel can enter the wellbore through the ladder 5.

[0026] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A water supply and drainage fire inspection shaft, comprising a cement base (1), a cement shaft (2) and a cement cover plate (3), characterized in that: A cement shaft (2) is installed on the cement base (1), and a cement cover plate (3) is installed on the cement shaft (2). Both the cement base (1) and the cement shaft (2) are provided with a splicing groove (6). The bottom surfaces of the cement shaft (2) and the cement cover plate (3) are provided with a splicing protrusion (7) that matches the splicing groove (6). The cement base (1) and the cement shaft (2) as well as the cement shaft (2) and the cement cover plate (3) are bonded by cement. The cement cover plate (3) is provided with a wellhead (8), a wellhead cover ring (9) is installed in the wellhead (8), and a wellhead cover (10) is installed in the wellhead cover ring (9).

2. A water supply and drainage fire inspection shaft according to claim 1, characterized in that: Two mounting heads (15) are symmetrically arranged on the side of the wellhead cover (10), and a mounting opening (14) adapted to the mounting heads (15) is provided on the wellhead cover ring (9).

3. A water supply and drainage fire inspection shaft according to claim 1, characterized in that: An annular groove body (13) is provided on the inner wall of the wellhead cover ring (9), and the size of the wellhead cover (10) is smaller than the size of the upper groove of the annular groove body (13) and larger than the size of the lower groove of the annular groove body (13).

4. A water supply and drainage fire inspection shaft according to claim 1, characterized in that: A threaded ring (11) is installed at the bottom of the wellhead cover (10), and a filter screen cylinder (12) is installed on the threaded ring (11).

5. A water supply and drainage fire inspection shaft according to claim 1, characterized in that: The cement base (1) is provided with connection ports (4) around its periphery for connection with pipelines.

6. A water supply and drainage fire inspection shaft according to claim 1, characterized in that: Ladders (5) are installed on the inner walls of the cement shaft (2) and the cement base (1).

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