Wellhead device for municipal water supply and drainage

Abstract

The utility model discloses a municipal water supply and drainage wellhead device which comprises a piling component, a mounting hole is formed in the piling component, a shaft is arranged on the piling component and located at the mounting hole, a covering plate is arranged at the bottom of the shaft, the outer side of the covering plate is connected with the bottom of the shaft, and an annular component is arranged on the inner side of the covering plate. The inner side of the annular part is provided with an internal thread, the annular part is provided with a water supply and drainage part, the water supply and drainage part is provided with a tubular part, the bottom of the tubular part is provided with a bottom cover, the top of the tubular part is provided with a flange, the outer side of the tubular part is provided with an external thread, and the tubular part is provided with a plurality of notches. External threads of the tubular part are in threaded connection with internal threads of the annular part, the tubular part of the water supply and drainage part is matched with the underground water conveying pipeline, the top of the underground water conveying pipeline is in sealed connection with the covering plate, and a well lid is arranged at the top of the shaft. Direct impact of water flow on the device is reduced, and damage caused by hydraulic impact is avoided.

Description

Technical Field

[0001] This utility model relates to the field of municipal water supply and drainage, and in particular to a wellhead device for municipal water supply and drainage. Background Technology

[0002] Municipal water supply and drainage systems are an important component of modern urban infrastructure, primarily used for water conservancy facilities related to urban life, production, rainwater drainage, and flood control. Manhole covers, as crucial intermediaries connecting surface and underground water pipelines, play a vital role in urban drainage, water supply, and sewage treatment.

[0003] In traditional municipal water supply and drainage systems, manhole devices typically consist of a manhole casing, a manhole cover, and connectors. These traditional manhole devices are mostly fixed in place, making them inflexible and lacking effective waterproofing and water flow regulation functions. Especially during water supply, manhole devices usually rely on a single opening method, making them susceptible to fluctuations in water flow or water pressure impacts, which can lead to structural damage or obstructed water flow. Utility Model Content

[0004] The purpose of this utility model is to provide a wellhead device for municipal water supply and drainage, so as to avoid damage to the wellhead device caused by water flow impact during water supply.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a municipal water supply and drainage wellhead device, characterized in that it includes a stacking component, an installation hole is provided on the stacking component, a well shaft is provided on the stacking component and located at the installation hole, a cover plate is provided at the bottom of the well shaft, the outer side of the cover plate is connected to the bottom of the well shaft, an annular component is provided on the inner side of the cover plate, an internal thread is provided on the inner side of the annular component, a water supply and drainage component is provided at the annular component, the water supply and drainage component has a tubular part, a bottom cover is provided at the bottom of the tubular part, a flange is provided at the top, an external thread is provided on the outer side of the tubular part, and several notches are provided on the tubular part, the external thread of the tubular part and the internal thread of the annular component are threadedly connected, wherein the tubular part of the water supply and drainage component cooperates with the underground water supply pipeline and the top of the underground water supply pipeline is sealed to the cover plate, and a well cover is provided at the top of the well shaft.

[0006] Furthermore, the cover plate is arched.

[0007] Further: Structural holes are provided at the four corners of the stacked component.

[0008] Furthermore, the notches are evenly distributed circumferentially in the tubular portion.

[0009] Further: The manhole cover is provided with several through holes, a filter screen is provided on the inner side of the manhole cover, and one side of the manhole cover is movably connected to the manhole barrel.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] (1) The water supply and drainage components can be adjusted in height within the well by rotating the flange, which can effectively cope with the water flow impact under different working conditions and avoid damage to the device (auxiliary components). When water is supplied, due to the large impact force of water filling, the water supply and drainage components are raised to increase the exposed area of ​​multiple sets of water inlets (openings) distributed on the water supply and drainage components. The water flow is diverted through multiple sets of water inlets and introduced into the underground water pipeline, reducing the direct impact of water flow on the device and avoiding damage caused by hydraulic impact.

[0012] (2) When the device is used for drainage, the water supply and drainage components are at the end of the drainage. The water supply and drainage components are lowered so that multiple water inlets are completely distributed in the underground water supply pipeline. Then, the external water pipe is fixedly connected to the water supply and drainage components through the flange. The discharged water will be discharged outward in sequence through the underground water supply pipeline, the water supply and drainage components and the external water pipe. When the device is at the end of the drainage, it is less affected by water impact. By concentrating the water for discharge, the drainage efficiency is improved. Attached Figure Description

[0013] Figure 1 This is a three-dimensional view of a wellhead device for municipal water supply and drainage from the first direction.

[0014] Figure 2 This is a two-dimensional view of a wellhead device for municipal water supply and drainage.

[0015] Figure 3 This is a 3D view of the well shaft.

[0016] Figure 4 This is a structural diagram of a manhole cover. Detailed Implementation

[0017] Example 1: See Figures 1 to 4 A municipal water supply and drainage manhole device includes a stacking component 11 (masonry component), an installation hole provided on the stacking component 11, a manhole 12 provided on the stacking component 11 and located at the installation hole, a cover plate 13 provided at the bottom of the manhole 12, the outer side of the cover plate 13 being connected to the bottom of the manhole 12, an annular component 13a provided on the inner side of the annular component 13a, an internal thread provided on the inner side of the annular component 13a, a water supply and drainage component provided at the annular component 13a, the water supply and drainage component having a tubular part 14a, a bottom cover provided at the bottom of the tubular part 14a, a flange 14b provided at the top, an external thread provided on the outer side of the tubular part 14a, and several notches 14c (water inlets) provided on the tubular part 14a, the external thread of the tubular part and the internal thread of the annular component being threadedly connected, wherein the tubular part 14a of the water supply and drainage component cooperates with an underground water supply pipeline 15, and the top of the underground water supply pipeline 15 is sealed to the cover plate 13, and a manhole cover 16 is provided at the top of the manhole 12.

[0018] When the water supply and drainage components move upwards inside the well, the larger the area of ​​the exposed water inlets (gap) above the cover plate, the smaller the exposed area of ​​the water inlets (gap). When the device is used for water supply, the well cover is first opened, and the water supply pipe injects water into the well. The water will be poured into the water supply and drainage components through multiple sets of exposed water inlets (gap) and transported outwards through the underground water pipeline. When the water supply volume is large and the water flow rate is fast, the water supply and drainage components are controlled to rise inside the well. At this time, the exposed water inlets (gap) have a larger area, and the water supply is quickly transported to the underground water pipeline through multiple sets of water inlets (gap).

[0019] In this embodiment, the cover plate 13 is arched (arched upwards). This design facilitates water supply and drainage.

[0020] In this embodiment, structural holes (four in total) are provided at the four corners of the stacking component 11. This design facilitates the installation of the device.

[0021] In this embodiment, the notches 14c are evenly distributed circumferentially on the tubular portion 14a. There are four notches, each elongated. This design facilitates water supply and drainage.

[0022] In this embodiment, the manhole cover 16 is provided with several through holes 16a, and a filter screen 16b is provided on the inner side of the manhole cover 16. One side of the manhole cover 16 is movably connected to the manhole cylinder 12. When excess water in the ground environment is drained by the device, the water is filtered through the through holes and the filter screen and then transported along the water supply and drainage components and underground water pipelines, which facilitates the filtration of impurities in the water.

[0023] When the device is used for drainage, the water supply and drainage components are first rotated, causing their lower ends to slide downwards along the underground water supply pipeline. This ensures that multiple sets of water inlets (notches) are fully distributed within the underground water supply pipeline. Then, the external drainage pipe is fixedly connected to the water supply and drainage components via flanges. The discharged water will flow outwards sequentially through the underground water supply pipeline, the water supply and drainage components, and the external drainage pipe. Because the water supply has a significant impact force during water supply, the multiple water inlets divert the water flow into the underground water supply pipeline, preventing damage to the device from excessive water impact. Simultaneously, during drainage, the device is at the drainage end, experiencing less water impact, and the concentrated discharge facilitates drainage.

[0024] The water supply and drainage components are adjusted in height within the well by rotating the flange. This height adjustment effectively addresses water flow impacts under different operating conditions, preventing damage to the device. During water supply, the impact force of the water is significant. Raising the water supply and drainage components increases the exposed area of ​​the multiple water inlets distributed on them, allowing water to be diverted through the multiple water inlets into the underground water supply pipeline, reducing the direct impact of the water flow on the device. When the device is used for drainage, the water supply and drainage components are at the drainage end. Lowering the components ensures that the multiple water inlets are fully distributed within the underground water supply pipeline. The external water pipe is then fixedly connected to the water supply and drainage components via the flange. The discharged water will flow outward sequentially through the underground water supply pipeline, the water supply and drainage components, and the external water pipe.

[0025] Example 2: The solution is the same as Example 1, except that several internal structural holes are provided on the inside of the manhole cover (not shown in the figure; the positions of the internal structural holes should correspond to the filter holes of the filter screen to facilitate the passage of the installation bolts). The internal structural holes have internal threads. This design facilitates the installation and use of manhole cover accessories.

[0026] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above-described embodiments. All technical solutions that fall within the principles of this utility model are within its protection scope. For those skilled in the art, any improvements made without departing from the principles of this utility model should also be considered within its protection scope.

Claims

1. A wellhead device for municipal water supply and drainage, characterized in that, The system includes a stacking component (11) with mounting holes. A well shaft (12) is installed on the stacking component (11) at the mounting holes. A cover plate (13) is installed at the bottom of the well shaft (12). The outer side of the cover plate (13) is connected to the bottom of the well shaft (12), and an annular component (13a) is installed on its inner side. An internal thread is provided on the inner side of the annular component (13a). A water supply and drainage component is installed at the annular component (13a), and the water supply and drainage component has a tubular portion (14a). The tubular part (14a) is provided with a bottom cover at the bottom and a flange (14b) at the top. The tubular part (14a) is provided with an external thread on the outside and a number of notches (14c) on the tubular part (14a). The external thread of the tubular part is threadedly connected to the internal thread of the annular component. The tubular part (14a) of the water supply and drainage component is matched with the underground water supply pipeline (15) and the top of the underground water supply pipeline (15) is sealed to the cover plate (13). The top of the well cylinder (12) is provided with a well cover (16).

2. A municipal water supply and drainage wellhead device according to claim 1, characterized in that: The cover plate (13) is arched.

3. A municipal water supply and drainage wellhead device according to claim 1, characterized in that: The four corners of the stacking component (11) are provided with structural holes.

4. A municipal water supply and drainage wellhead device according to claim 1, characterized in that: The notch (14c) is evenly distributed circumferentially on the tubular portion (14a).

5. A municipal water supply and drainage wellhead device according to claim 1, characterized in that: The manhole cover (16) is provided with several through holes (16a), and a filter screen (16b) is provided on the inner side of the manhole cover (16). One side of the manhole cover (16) is movably connected to the well cylinder (12).

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