Wellhead structure to prevent falling into the pipe

Abstract

The utility model provides a wellhead structure of preventing falling into pipeline, including integrative first part and second part, first part top has well lid, lower part side has first opening with second part intercommunication, second part bottom has second opening with shaft intercommunication, its characterized in that: having baffle at first opening, baffle links with well lid through cable, the sidewall of first part has ladder. According to the wellhead structure of preventing falling of the utility model, can prevent the occurrence of falling, deflagration danger under the premise of low cost, without electricity, not affecting the application of overhauling, also carries out low carbon treatment application to the flammable and explosive gas discharged in well, reduces environmental pollution.

Description

Technical Field

[0001] This utility model relates to municipal facilities, and in particular to a wellhead structure suitable for deep wells that prevents falls in, prevents explosions, and reduces carbon emissions. Background Technology

[0002] Every year across the country, numerous accidents involving falling into manholes occur for various reasons (such as lost manhole covers, flooding, and aging or decayed covers). These accidents range from minor shocks to serious threats to people's lives and property. Municipal drainage networks contain decaying organic matter that produces methane gas, and some manholes have ventilation holes for air release. During public activities, people may accidentally drop sparking objects into these manholes, potentially causing explosions in the underground wells and pipes, posing a serious threat to public safety and lives.

[0003] With the country vigorously promoting the low-carbon development of cities in recent years, how to solve the above problems in a low-cost and high-efficiency manner has become a challenge. Utility Model Content

[0004] Therefore, the purpose of this utility model is to overcome the above-mentioned technical defects and design a new wellhead structure that can effectively prevent the occurrence of the above-mentioned dangers at low cost, without electricity, and without affecting maintenance and application. At the same time, it can also carry out low-carbon treatment and application of flammable and explosive gases discharged from the well, thereby reducing environmental pollution.

[0005] This utility model provides a wellhead structure, including an integrally formed first part and a second part. The first part has a well cover on its top and a first opening on its lower side that communicates with the second part. The second part has a second opening at its bottom that communicates with a vertical shaft. A baffle is provided at the first opening, and the baffle is connected to the well cover by a steel cable. A ladder is provided on the side wall of the first part.

[0006] The second part is shorter than the first part, and the top of the second part has an exhaust pipe.

[0007] The manhole cover has multiple holes or grilles for filtering water.

[0008] The first section has a buffer platform extending from the side wall of the first section at its lower part. The thickness of the buffer platform gradually increases from the first section toward the second section, with a slope of not less than 3%. There is a certain gap between the buffer platform and one side wall of the first section.

[0009] The baffle includes a lower partition and an upper grille, the bottom of the partition or the top of the grille is flush with the top of the second part, and the bottom of the partition is higher than the bottom of the first part.

[0010] The first part has a groove at the top and a movable slider disposed in the groove. A steel cable connected to a baffle passes around the surface of the slider and is further connected to the manhole cover. Screw holes are provided on the groove, and fixing screws can be inserted into the screw holes to prevent the slider from moving. When the manhole cover is closed, the slider moves freely to the first position, and the baffle is fully lowered. When the manhole cover is under maintenance, the manhole cover is fully opened, the steel cable drives the baffle to rise fully, and the fixing screw is inserted to fix the slider in the first position. When the manhole cover is accidentally opened, the fixing screw is not inserted, the slider moves freely to the second position, and the baffle is in a semi-open state due to the length of the steel cable.

[0011] The first part has a hardened foundation on the side of the second opening of the second part below it to support the first part.

[0012] The anti-fall-into-pipe wellhead structure of this utility model can effectively prevent falls into pipes and the occurrence of explosion hazards under the premise of low cost, no electricity required, and no impact on maintenance and application. At the same time, it can also treat and utilize flammable and explosive gases discharged from the well in a low-carbon manner, reducing environmental pollution.

[0013] The objectives described herein, and other objectives not listed herein, are satisfied within the scope of the independent claims of this application. Embodiments of the present invention are defined in the independent claims, and specific features are defined in its dependent claims. Attached Figure Description

[0014] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0015] Figure 1 The diagram shows the appearance of the anti-fall-into-pipe wellhead structure according to the present invention in the closed state;

[0016] Figure 2 A cross-sectional view of the internal structure of the anti-fall-into-pipe wellhead structure according to the present invention is shown;

[0017] Figure 3 A side sectional view of the anti-fall-into-pipe wellhead structure according to the present invention is shown;

[0018] Figure 4 A schematic diagram showing the plan dimensions of the anti-fall-into-pipe wellhead structure according to the present invention is provided.

[0019] Figure 5 A schematic diagram of the drainage process of the anti-fall-into-pipe wellhead structure according to the present invention is shown;

[0020] Figure 6 A schematic diagram showing the explosion-proof state of the anti-fall-into-pipe wellhead structure according to the present invention is displayed.

[0021] Figure 7 A detailed schematic diagram of a manhole cover with an anti-fall-in manhole structure according to the present invention is shown;

[0022] Figure 8a , Figure 8b and Figure 8c The diagrams show the anti-fall-into-the-well structure according to this utility model in three states: closed, under maintenance, and in a fall-in-the-well state; and...

[0023] Figure 9 A schematic diagram showing the installation details of the anti-fall-into-pipe wellhead structure according to the present invention is displayed. Detailed Implementation

[0024] The features and technical effects of this utility model are described in detail below with reference to the accompanying drawings and illustrative embodiments. A wellhead structure suitable for deep wells, including a fall-in prevention pipe, explosion-proof design, and carbon emission reduction, is disclosed. It should be noted that similar reference numerals indicate similar structures, and the terms "first," "second," "upper," "lower," etc., used in this application can be used to modify various product structures. Unless otherwise specified, these modifications do not imply spatial, sequential, or hierarchical relationships within the modified product structures.

[0025] like Figure 1-3 As shown, the entire manhole structure 200 is a precast, integrally formed component, such as a reinforced concrete structure, embedded in the municipal road 100. The manhole structure includes an adjacent first section ( Figure 3 (middle left part) and the second part ( Figure 3 The first part (right side portion) has a manhole cover 201 at the top and a first opening on its lower side that connects to the second part. The second part has a second opening at the bottom that connects to a sewer network 300 (e.g., a pre-installed drainage shaft). A baffle 202 is provided at the first opening, and the baffle is connected to the manhole cover by a steel cable 203. A ladder 204 is provided on the side wall of the first part. Preferably, the second part is shorter than the first part, and the top of the second part has an exhaust pipe 205. Preferably, the manhole cover has multiple holes or grilles 210 for filtering water, facilitating drainage during rain and snow.

[0026] Specifically, such as Figure 3-4 As shown, the first part has a height of 1800 mm and a wall thickness of 200 mm, the second part has a height of 1000 mm and a wall thickness of 250 mm, the shaft wall thickness is 200 mm, and the second part at the second opening (diameter shown as d) has a wall thickness of 50 mm and a height of 200 mm. Preferably, a 200 mm thick hardened foundation 206 (e.g., poured concrete) is provided below the first part and on the side of the second opening of the second part to support the first part.

[0027] Preferably, a buffer platform 207 is provided at a height of 200mm from the bottom surface of the first part, extending from the side wall of the first part. The thickness of the buffer platform gradually increases from the first part toward the second part, and the slope is not less than 3%. Therefore, as Figure 5 As shown, when there is water on the road surface, the water flows down the road surface through the holes in the manhole into the space of the operating buffer platform. The bottom of the operating buffer space has a slope of not less than 3%, and the water flows through the slope to the drainage ditch at the bottom (slope of not less than 3%), and finally drains into the well. Preferably, there is a certain gap between the buffer platform and one side wall of the first part, for example, greater than 50mm and less than 200mm, such as 100mm, so that the water flowing down from the manhole cover can drain normally through the gap without trapping a person who falls in.

[0028] Preferably, the baffle includes a lower partition and an upper grille, the bottom of the partition (or the top of the grille) being flush with the top of the second part, and the bottom of the partition being higher than the bottom of the first part (e.g., flush with the bottom of the buffer platform). Thus, as... Figure 6 As shown, the biogas discharged from the shaft will be drawn away by the exhaust pipe (the exhaust volume needs to be calculated; if the exhaust volume is higher than the biogas production, it is preferable to install an air pump in the exhaust pipe), and the resulting airflow pattern is as follows. Figure 6 As shown, most of the biogas is blocked and sucked away by the baffles, and the gas in the first section is also sucked away through the grid, creating a negative pressure. Because of the baffles, flammable gases are effectively prevented from seeping into the operating buffer platform, eliminating the possibility of combustion or explosion, and thus providing explosion-proof and fire-proof functions.

[0029] like Figure 7 As shown, the first part has a groove at the top and a movable slider 208 disposed in the groove. A steel cable connected to the baffle passes around the surface of the slider and is further connected to the manhole cover. The slider inside the manhole cover is connected by the steel cable to achieve the function of lifting the baffle. When it is necessary to enter the manhole for maintenance, a fastener, such as a long screw, is screwed into the groove (e.g., slider track) through the screw hole 209 to prevent the slider from moving. When the manhole cover is opened, the slider cannot move, thereby increasing the lifting height of the baffle and achieving full opening of the baffle, making it convenient for maintenance personnel to operate.

[0030] like Figure 8a As shown, when the manhole cover is in the closed state, the slider moves freely to the first position (e.g. Figure 7 (On the far right of the middle section), set the cable length so that the baffle can fall completely. For example... Figure 8b As shown, when the manhole cover is under maintenance, the cover is fully opened, the steel cable drives the baffle to rise completely, and the fixing screws are inserted to fix the slider in the first position. Figure 8cAs shown, when the manhole cover is accidentally opened, for example, if someone falls into the manhole, such as when the manhole cover is pushed open due to special reasons (heavy rain or flood), and a pedestrian unfortunately falls into the manhole, the fixing screw is not inserted, and the slider moves freely to the second position (e.g., Figure 7 On the left side (where the screw hole aligns with the recessed area of ​​the slider), when pushed open, the slider, unobstructed by the long screw, falls along the track to the innermost side. The baffle, due to the length of the steel cable, remains partially open, with a lifting height not exceeding 400mm. This effectively and quickly drains water while protecting personnel who have fallen into the well, preventing them from being swept away. Personnel can climb out of the well using a ladder.

[0031] Solutions to some potential problems:

[0032] 1. Malicious damage: Someone opened the manhole cover and dumped garbage inside, causing the operating buffer platform space to be filled.

[0033] Measures: Regular inspections by sanitation workers are required, and any litter found must be cleaned up. Legal action can be taken to hold those responsible for the damage accountable and to secure additional compensation for workers.

[0034] 2. Clogged drainage channels: The road drainage contains a large amount of mud and sand, which clogs the drainage channels and prevents the water from flowing down.

[0035] Measures: Under normal circumstances, drainage channels will not become clogged because the manhole cover holes are 10mm wide and the drainage channel is 200mm high. The fineness of the silt flowing into the well is far less than the height of the drainage channel, making clogging virtually impossible. If a blockage does occur, it can be cleared mechanically using dredging equipment.

[0036] 3. Pest breeding grounds: habitats for rats and cockroaches.

[0037] Measures: Simply keep the well clean and hygienic. You can also add some medication to the wellhead for prevention and treatment.

[0038] like Figure 3 and Figure 9 As shown, the installation process includes: constructing a 1.4m x 1.2m hardened concrete foundation at a height of 1.8 meters above the municipal shaft. The manhole opening is installed above the shaft via hoisting. The manhole opening is precisely positioned above the shaft, with a height of 100mm. Figure 3 and Figure 9 As shown. After hoisting the wellhead, install the ventilation pipe, which can be laid using traditional underground pipeline methods. The gap between the wellhead and the ground is filled with compacted backfill soil or directly filled with concrete to ensure its environmental stress stability.

[0039] The anti-fall-into-pipe wellhead structure of this utility model can effectively prevent the occurrence of falls into the pipe and explosion hazards under the premise of low cost, no power required, and no impact on maintenance and application. At the same time, it can also treat and apply flammable and explosive gases discharged from the well in a low-carbon manner, reducing environmental pollution.

[0040] Although the present invention has been described with reference to one or more exemplary embodiments, those skilled in the art will recognize that various suitable changes and equivalents can be made to the product structure without departing from the scope of the present invention. Furthermore, many modifications that may be suitable for particular situations or materials can be made from the disclosed teachings without departing from the scope of the present invention. Therefore, the purpose of the present invention is not to limit itself to the specific embodiments disclosed as the best mode for carrying out the present invention, and the disclosed product structures will include all embodiments falling within the scope of the present invention.

Claims

1. A manhole structure for preventing falls into pipelines, comprising an integrally formed first part and a second part, the first part having a manhole cover at the top and a first opening communicating with the second part on its lower side, and the second part having a second opening communicating with a vertical shaft at the bottom, characterized in that: There is a baffle at the first opening, which is connected to the manhole cover by a steel cable, and there is a ladder on the side wall of the first part.

2. The wellhead structure for preventing falls into the pipeline according to claim 1, characterized in that, The second section is shorter than the first section, and the top of the second section has an exhaust pipe.

3. The wellhead structure for preventing falls into the pipeline according to claim 1, characterized in that, The manhole cover has multiple holes or grilles for filtering water.

4. The wellhead structure for preventing falls into the pipeline according to claim 1, characterized in that, The lower part of the first section has a buffer platform that extends out from the side wall of the first section.

5. The wellhead structure for preventing falls into the pipeline according to claim 4, characterized in that, The thickness of the buffer platform gradually increases from the first part toward the second part, with a slope of not less than 3%.

6. The wellhead structure for preventing falls into the pipeline according to claim 4, characterized in that, There is a certain gap between the buffer platform and one side wall of the first part.

7. The wellhead structure for preventing falls into the pipeline according to claim 1, characterized in that, The baffle includes a lower partition and an upper grille, the bottom of the partition or the top of the grille is flush with the top of the second part, and the bottom of the partition is higher than the bottom of the first part.

8. The wellhead structure for preventing falls into the pipeline according to claim 1, characterized in that, The first part has a groove at the top and a movable slider in the groove. A steel cable connected to a baffle passes around the surface of the slider and is further connected to the manhole cover. Screw holes are provided on the groove, and fixing screws can be inserted into the screw holes to prevent the slider from moving.

9. The wellhead structure for preventing falls into the pipeline according to claim 8, characterized in that, When the manhole cover is closed, the slider moves freely to the first position and the baffle is fully lowered; when the manhole cover is under maintenance, the manhole cover is fully opened, the steel cable drives the baffle to rise fully, and the fixing screw is inserted to fix the slider in the first position; when the manhole cover is accidentally opened, the fixing screw is not inserted, the slider moves freely to the second position, and the baffle is in a semi-open state due to the length of the steel cable.

10. The wellhead structure for preventing falls into the pipeline according to claim 1, characterized in that, The first part has a hardened foundation on the side of the second opening of the second part below it to support the first part.

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