Multi-port manholes for underground viewing corridor construction

Abstract

The present invention provides a multi-port manhole well for the construction of an underground viewing corridor, which relates to the field of manhole wells and includes: a wellhead assembly, wherein the wellhead assembly is composed of a collar mechanism and a well cover mechanism, and the wellhead assembly can have the functions of ventilation inside the well and drainage outside the well. The accumulated water outside the ground can automatically flow into the interior of the sewage pipe through the collar mechanism, thereby ensuring that the ground located at the collar mechanism portion remains dry, and the accumulated water is prevented from entering the well, causing water accumulation in the well and damage to power lines. The well cover mechanism can automatically replace the gas inside and outside the well under the action of trampling and squeezing by the outside world, thereby ensuring that the air in the well is clean and fresh, and solves the problem that the existing manhole wells do not have drainage and ventilation functions, and the accumulated water can easily flow into the well from the gap of the well cover, causing water accumulation in the well, and the interior of the manhole well is relatively closed, so that a large amount of polluted gas will be stored in the well at the initial stage of opening, and the staff will feel uncomfortable after entering the well.

Description

Technical Field

[0001] The invention relates to the technical field of manhole wells, and in particular to a multi-port manhole well constructed in an underground viewing corridor. Background Art

[0002] Manholes, also called manholes, are vertical passages dug at intervals for the convenience of power inspection and threading. Common ones include cable manholes, communication manholes, etc. At present, multiple manholes are installed on underground viewing corridors for daily maintenance and inspection of various power pipelines buried at the bottom of the corridor. At the same time, manholes are also convenient for staff to reach the layout of power pipelines directly from the ground. For example, the patent with application number: CN201810542574.X discloses a glass fiber reinforced plastic manhole bottom trough, including a soil layer, and a manhole is arranged in the soil layer. There is a groove, an oil tank is installed at the bottom of the groove, a limiting groove is provided at the upper end of the groove, a plurality of oil outlet pipes are evenly spaced at the upper end of the oil tank, a valve is provided at the upper end of the oil outlet pipe, a flange is fixed to the upper end of the oil tank, and the flange is located in the limiting groove, water stop plates are fixed on both sides of the flange, a bearing plate is fixed to the upper end of the two water stop plates and the flange, a fixing ring is fixed to the upper end of the bearing plate, a manhole section is sleeved on the upper end of the fixing ring, a first slide groove is provided on the side walls at both ends of the manhole section, and a first slider is installed in the first slide groove. The present invention realizes the function of quickly installing and disassembling the glass fiber reinforced plastic manhole well during use by improving the bottom groove of the glass fiber reinforced plastic manhole well, and can adjust the height of the manhole well accordingly according to needs, is easy to use, and simple to operate.

[0003] However, as far as the existing manhole wells are concerned, they do not have drainage and ventilation functions. When the external water accumulates over the well cover, the accumulated water can easily flow into the well from the gaps in the well cover, causing water accumulation in the well, affecting the normal use of the power pipeline. At the same time, the accumulated water can easily damage the power pipeline and reduce its durability. In addition, since the interior of the manhole well is relatively closed, a large amount of polluted gas will be stored in the well at the initial stage of opening. The staff will feel uncomfortable after entering the well. The manhole well has poor flexibility and is not very practical. Summary of the invention

[0004] The disclosed embodiment relates to a multi-port manhole well for the construction of an underground viewing corridor, which has a wellhead assembly. The wellhead assembly can have the functions of both ventilation inside the well and drainage outside the well. The accumulated water outside the ground can automatically flow into the interior of the sewage pipe through the collar mechanism, thereby ensuring that the ground located at the collar mechanism is kept dry and preventing accumulated water from entering the well, causing water accumulation in the well and damage to power pipelines. The manhole cover mechanism can automatically replace the gas inside and outside the well under the action of external trampling and squeezing (such as bicycles or vehicles passing by, people walking and trampling), thereby ensuring that the air in the well is clean and fresh. No additional energy is required, and the use is stable, and the flexibility, stability and practicality are extremely strong.

[0005] In a first aspect of the present disclosure, a multi-port manhole well for the construction of an underground viewing corridor is provided, specifically comprising: a wellhead assembly, the wellhead assembly being composed of a collar mechanism and a well cover mechanism;

[0006] The collar mechanism includes a collar tube, an auxiliary asphalt plate and a drainage pipe. The collar tube is buried in the ground, and the auxiliary asphalt plate is flush with the road surface. The bottom of the collar tube is connected to the underground pipeline, and the auxiliary asphalt plate is fixedly installed on the top of the collar tube. The drainage pipe is fixedly installed on the side of the collar tube.

[0007] The manhole cover mechanism comprises a fixed cover seat and a movable cover seat, wherein the fixed cover seat is detachably fixedly installed on the top of the collar tube, and the movable cover seat is plugged into the top of the fixed cover seat.

[0008] In at least some embodiments, a rainwater leakage hole is opened on the plate body of the auxiliary asphalt plate, and a water collecting chamber is provided inside the collar tube, the water collecting chamber is located entirely below the rainwater leakage hole, the top of the drain pipe is connected to the water collecting chamber, and the bottom of the drain pipe is connected to the sewage pipe through a pipe.

[0009] In at least some embodiments, a track column is provided at the bottom of the movable cover seat, and a track groove is provided inside the fixed cover seat, and the track column is inserted into the inside of the track groove.

[0010] In at least some embodiments, a return spring is provided inside the track post, and two ends of the return spring are respectively against the inside of the track post and the inside of the fixed cover seat.

[0011] In at least some embodiments, the fixed cover seat and the movable cover seat are both provided with a piston cavity inside, the bottom of the fixed cover seat is provided with an air compression channel, and the top of the movable cover seat is provided with an air intake channel, the top and bottom of the air compression channel are respectively connected to the piston cavity of the fixed cover seat and the interior of the neck ring tube, and the two ends of the air intake channel are respectively connected to the piston cavity of the movable cover seat and the outside of the movable cover seat.

[0012] In at least some embodiments, an exhaust passage is provided inside the fixed cover seat, and two ends of the exhaust passage are respectively connected to the inside and the outside of the collar tube.

[0013] In at least some embodiments, one-way valves for controlling the direction of gas are provided inside the compressed air channel, the inlet channel and the exhaust channel.

[0014] In at least some embodiments, the intake channels and the exhaust channels are provided in multiple groups, and the total channel cross-sectional area of ​​all the intake channels is larger than the cross-sectional area of ​​the piston chamber.

[0015] In at least some embodiments, locking pin holes are provided inside the fixed cover seat and the movable cover seat. When the movable cover seat is not pressed by external force, the locking pin holes of the fixed cover seat and the movable cover seat are aligned with each other under the action of the reset top spring.

[0016] The multi-port manhole well for constructing the underground viewing corridor provided by the present invention has the following beneficial effects.

[0017] The wellhead assembly can have the functions of both ventilation inside the well and drainage outside the well. The accumulated water on the outside of the ground can automatically flow into the inside of the sewage pipe through the collar mechanism, thereby ensuring that the ground located at the collar mechanism remains dry and preventing accumulated water from entering the well, causing water accumulation in the well and damage to power pipelines. The manhole cover mechanism can automatically replace the gas inside and outside the well under the influence of external trampling and squeezing (such as bicycles or vehicles passing by, people walking and trampling), ensuring that the air in the well is clean and fresh. No additional energy is required, and it is stable to use, which improves the flexibility, stability and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0019] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the attached picture:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the structure inside the wellhead assembly of the present invention.

[0023] Figure 3 The present invention Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0024] Figure 4 It is a schematic diagram of the structure inside the collar mechanism of the present invention.

[0025] Figure 5 It is a structural schematic diagram of the manhole cover mechanism of the present invention after being disassembled.

[0026] Figure 6 The present invention Figure 5 Schematic diagram of the structure at the bottom.

[0027] Figure 7 It is a diagram of the flow of gas inside the movable cover seat when the movable cover seat of the present invention moves downward.

[0028] Figure 8 It is a diagram of the flow of gas inside the movable cover seat when the movable cover seat of the present invention moves upward.

[0029] Fig. 9 It is a schematic diagram of the structure inside the manhole cover mechanism in Example 2 of the present invention.

[0030] Reference numerals list

[0031] 1. Ground;

[0032] 2. collar mechanism; 201. collar pipe; 2011. water collecting chamber; 202. auxiliary asphalt plate; 2021. rainwater leakage hole; 203. drainage pipe;

[0033] 3. Manhole cover mechanism; 301. Fixed cover seat; 3011. Track groove; 3012. Piston chamber; 3013. Compressed air channel; 3014. Exhaust channel; 3015. Locking pin hole; 302. Movable cover seat; 3021. Track column; 3022. Reset top spring; 3023. Inlet channel; 303. One-way valve.

[0034] It should be noted that Figure 7 and Figure 8 The hollow arrow indicates the moving direction of the movable cover seat, and the solid arrow indicates the flow direction of the gas. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Please refer to Figures 1 to 9 As shown:

[0037] Embodiment 1: The present invention provides a multi-port manhole for the construction of an underground viewing corridor, including a wellhead assembly, wherein the wellhead assembly is composed of a collar mechanism 2 and a well cover mechanism 3;

[0038] The collar mechanism 2 includes a collar tube 201, an auxiliary asphalt plate 202 and a drainage pipe 203. The collar tube 201 is buried in the ground 1, and the auxiliary asphalt plate 202 is flush with the road surface. The bottom of the collar tube 201 is connected to the underground pipeline, and the auxiliary asphalt plate 202 is fixedly installed on the top of the collar tube 201. The drainage pipe 203 is fixedly installed on the side of the collar tube 201.

[0039] The manhole cover mechanism 3 includes a fixed cover seat 301 and a movable cover seat 302 . The fixed cover seat 301 is detachably fixedly installed on the top of the collar tube 201 , and the movable cover seat 302 is plugged into the top of the fixed cover seat 301 .

[0040] In the disclosed embodiment, a rainwater leakage hole 2021 is provided on the plate body of the auxiliary asphalt plate 202, and a water collecting chamber 2011 is provided inside the collar pipe 201, the water collecting chamber 2011 is located completely below the rainwater leakage hole 2021, and the top of the drain pipe 203 is connected with the water collecting chamber 2011, and the bottom of the drain pipe 203 is connected with the sewage pipe through a pipe. In use, the collar mechanism 2 can realize the function of drainage outside the well. When water accumulates on the ground 1 at the location of the collar mechanism 2 due to rainwater and other factors, the accumulated water will enter the water collecting chamber 2011 through the rainwater leakage hole 2021. The bottom surface of the water collecting chamber 2011 is designed to be inclined toward one side of the drain pipe 203, so that the accumulated water flowing into the water collecting chamber 2011 will eventually flow into the sewage pipe through the drain pipe 203, ensuring that no water will accumulate on the ground 1 at the top of the collar mechanism 2, thereby preventing external accumulated water from entering the well body, causing water accumulation in the well and damage to power pipelines, and stable use.

[0041] In the embodiment of the present disclosure, a track column 3021 is provided at the bottom of the movable cover seat 302, and a track groove 3011 is provided inside the fixed cover seat 301, the track column 3021 is inserted into the inside of the track groove 3011, and a return spring 3022 is provided inside the track column 3021, and the two ends of the return spring 3022 are respectively against the inside of the track column 3021 and the inside of the fixed cover seat 301. In use, the manhole cover mechanism 3 can automatically realize the gas replacement inside and outside the well, ensuring the cleanliness and freshness of the air in the well, without the need for additional energy drive, and because the wellhead assembly is arranged on the ground 1, when pedestrians walk by, When a bicycle or a vehicle passes by, the movable cover seat 302 will be stepped on and squeezed with a high probability, thereby realizing the gas replacement inside and outside the well through the action of the movable cover seat 302 being stepped on and squeezed, and ensuring the cleanliness and freshness of the air in the well. In the reset state, the movable cover seat 302 will remain in the lifted state under the action of the reset top spring 3022, and the interiors of the fixed cover seat 301 and the movable cover seat 302 are both provided with a piston cavity 3012, the bottom of the fixed cover seat 301 is provided with a compressed air channel 3013, and the top of the movable cover seat 302 is provided with an air inlet channel 3023, and the top and bottom parts of the compressed air channel 3013 are The piston chamber 3012 of the fixed cover seat 301 and the interior of the neck ring tube 201 are communicated with each other, and the two ends of the air inlet passage 3023 are communicated with the piston chamber 3012 of the movable cover seat 302 and the outside of the movable cover seat 302 respectively. When the movable cover seat 302 is stepped on and squeezed, the movable cover seat 302 will move downward. During the downward movement of the movable cover seat 302, the space of the piston chamber 3012 will be compressed, so that the gas inside the piston chamber 3012 will enter the inlet through the compressed air passage 3013. The interior of the fixed cover seat 301 is provided with an exhaust passage 3014, and the two ends of the exhaust passage 3014 are respectively communicated with the neck ring tube 201. The interior of the ring tube 201 is connected to the outside. As the gas enters the well, the pressure of the gas in the well changes. The original gas in the well will be discharged into the well through the exhaust channel 3014, thereby realizing the replacement of the gas in the well. When the stepping and squeezing effect of the movable cover seat 302 disappears, the movable cover seat 302 moves up and resets again under the action of the reset top spring 3022. In this process, the volume of the piston chamber 3012 becomes larger, and the gas outside the well will enter the interior of the piston chamber 3012 through the air inlet channel 3023, so as to realize the operation of replacing the gas inside and outside the well again when the movable cover seat 302 is stepped on and squeezed next time.

[0042] In the disclosed embodiment, a one-way valve 303 for controlling the direction of gas is provided inside the compressed air channel 3013, the air inlet channel 3023 and the exhaust channel 3014. During use, under the action of the one-way valve 303, the gas can only flow in one direction inside the air inlet channel 3023, the exhaust channel 3014 and the compressed air channel 3013, thereby stably realizing the function of replacing gas inside and outside the well. The air inlet channel 3023 and the exhaust channel 3014 are provided with multiple groups, and the total channel cross-sectional area of ​​all the air inlet channels 3023 is larger than the cross-sectional area of ​​the piston chamber 3012. This design ensures that when the movable cover seat 302 moves upward, the air intake volume of all the air inlet channels 3023 is greater than the rate at which the volume of the piston chamber 3012 increases, so that the movable cover seat 302 can be smoother and more stable to use when it moves up and resets.

[0043] Specific usage and function of this embodiment: In the present invention, the collar mechanism 2 can realize the function of draining water outside the well. When water accumulates on the ground 1 at the collar mechanism 2 due to rain or other factors, the accumulated water will enter the water collecting chamber 211 through the rainwater leak hole 2021. The bottom surface of the water collecting chamber 2011 is designed to be inclined toward the side of the drain pipe 203, so that the accumulated water flowing into the water collecting chamber 211 will eventually flow into the sewage pipe through the drain pipe 203, ensuring that water will not accumulate on the ground 1 at the top of the collar mechanism 2, thereby preventing external accumulated water from entering the well body, causing water accumulation in the well and damage to the power pipeline. The manhole cover mechanism 3 can automatically realize the gas replacement inside and outside the well, ensuring the cleanliness and freshness of the air in the well, without the need for additional energy drive. Since the wellhead assembly is arranged on the ground 1, when pedestrians, bicycles or vehicles pass by, the movable cover seat 302 will be stepped on and squeezed with a high probability, thereby realizing the gas replacement inside and outside the well through the action of the movable cover seat 302 being stepped on and squeezed, ensuring the cleanliness and freshness of the air in the well. In the reset state, the movable cover seat 302 will remain in the lifted state under the action of the reset top spring 3022. When the movable cover seat 302 is stepped on and squeezed, the movable cover seat 302 will move downward, and the movable When the cover seat 302 moves downward, the space of the piston chamber 3012 will be compressed, so that the gas inside the piston chamber 3012 will enter the well through the compressed air channel 3013. As the gas enters the well, the pressure of the gas in the well changes, and the original gas in the well will be discharged into the well through the exhaust channel 3014, thereby realizing the replacement of the gas in the well. When the trampling and squeezing effects of the movable cover seat 302 disappear, the movable cover seat 302 moves up and resets again under the action of the reset top spring 3022. In this process, the volume of the piston chamber 3012 increases, and the gas outside the well enters the interior of the piston chamber 3012 through the intake channel 3023. , so that the next time the movable cover seat 302 is stepped on and squeezed, the operation of replacing the gas inside and outside the well can be realized again. Under the action of the one-way valve 303, the gas can only flow in one direction inside the air inlet channel 3023, the exhaust channel 3014 and the compressed air channel 3013, so that the function of replacing the gas inside and outside the well can be stably realized, and the total channel cross-sectional area of ​​all air inlet channels 3023 is larger than the cross-sectional area of ​​the piston cavity 3012. This design makes it possible for the air intake volume of all air inlet channels 3023 to be greater than the rate at which the volume of the piston cavity 3012 increases when the movable cover seat 302 moves upward, so that the movable cover seat 302 can be smoother when it moves up and resets.

[0044] Embodiment 2: On the basis of Embodiment 1, locking pin holes 3015 are provided inside the fixed cover seat 301 and the movable cover seat 302. When the movable cover seat 302 is not pressed by external force, under the action of the reset top spring 3022, the locking pin holes 3015 of the fixed cover seat 301 and the movable cover seat 302 are aligned with each other. In use, the function of exchanging gas inside and outside the well of the manhole cover mechanism 3 can be turned on or off as needed. When the movable cover seat 302 is not pressed by external force, the two locking pin holes 3015 are aligned with each other. Therefore, after the pin rod is inserted into the interior of the two locking pin holes 3015 at the same time, the movable cover seat 302 cannot move up and down inside the fixed cover seat 301, thereby closing the function of exchanging gas inside and outside the well of the manhole cover mechanism 3. On the contrary, when it is necessary to keep the internal and external gas replacement function of the manhole cover mechanism 3 turned on, it is only necessary to pull out the pin rod. It can be used in different installation environments and has strong adaptability.

[0045] In this article, there are a few points to note:

[0046] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0047] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0048] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. The multi-port manhole well constructed in the underground viewing corridor is characterized by: include: A wellhead assembly, the wellhead assembly consisting of a collar mechanism (2) and a wellhead cover mechanism (3); The collar mechanism (2) comprises a collar tube (201), an auxiliary asphalt plate (202) and a drainage pipe (203); the collar tube (201) is buried in the ground (1), and the auxiliary asphalt plate (202) is flush with the road surface; the bottom of the collar tube (201) is connected to an underground pipeline, and the auxiliary asphalt plate (202) is fixedly mounted on the top of the collar tube (201); and the drainage pipe (203) is fixedly mounted on the side of the collar tube (201); The manhole cover mechanism (3) comprises a fixed cover seat (301) and a movable cover seat (302), wherein the fixed cover seat (301) is detachably fixedly mounted on the top of the collar tube (201), and the movable cover seat (302) is plugged into the top of the fixed cover seat (301); The auxiliary asphalt plate (202) is provided with a rainwater leakage hole (2021) on its plate body, and a water collecting chamber (2011) is provided inside the collar pipe (201), the water collecting chamber (2011) is located entirely below the rainwater leakage hole (2021), and the top of the drainage pipe (203) is connected to the water collecting chamber (2011), and the bottom of the drainage pipe (203) is connected to a sewage pipe through a pipe; The bottom of the movable cover seat (302) is provided with a track column (3021), and the interior of the fixed cover seat (301) is provided with a track groove (3011), and the track column (3021) is inserted into the interior of the track groove (3011); A return spring (3022) is provided inside the track column (3021), and two ends of the return spring (3022) respectively abut against the inside of the track column (3021) and the inside of the fixed cover seat (301); The fixed cover seat (301) and the movable cover seat (302) are both provided with a piston cavity (3012) inside, the bottom of the fixed cover seat (301) is provided with a compressed air channel (3013), and the top of the movable cover seat (302) is provided with an air intake channel (3023), the top and bottom of the compressed air channel (3013) are respectively connected to the piston cavity (3012) of the fixed cover seat (301) and the inside of the collar tube (201), and the two ends of the air intake channel (3023) are respectively connected to the piston cavity (3012) of the movable cover seat (302) and the outside of the movable cover seat (302); An exhaust passage (3014) is provided inside the fixed cover seat (301), and two ends of the exhaust passage (3014) are respectively connected to the inside of the collar tube (201) and the outside; The compressed air channel (3013), the inlet channel (3023) and the exhaust channel (3014) are all provided with a one-way valve (303) for controlling the direction of the gas.

2. The multi-port manhole well for the construction of the underground viewing corridor as claimed in claim 1 is characterized by: The air intake channels (3023) and the air exhaust channels (3014) are provided in multiple groups, and the total channel cross-sectional area of ​​all the air intake channels (3023) is greater than the cross-sectional area of ​​the piston chamber (3012).

3. The multi-port manhole well for constructing the underground viewing corridor as claimed in claim 2 is characterized by: The fixed cover seat (301) and the movable cover seat (302) are both provided with locking pin holes (3015) inside. When the movable cover seat (302) is not pressed by external force, under the action of the return top spring (3022), the locking pin holes (3015) of the fixed cover seat (301) and the movable cover seat (302) are aligned with each other.

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