A safety structure for a comprehensive pipe gallery or tunnel based on a drainage system

Abstract

The present application relates to a safety structure for an integrated pipe gallery or tunnel based on a drainage system, and relates to the technical field of pipe gallery construction safety, which includes a drainage channel, which is opened on both sides of the bottom wall of the pipe gallery or tunnel along the length direction of the pipe gallery or tunnel, and a water storage chamber is spaced along the length direction of the drainage channel; a water curtain forming device is installed between the two drainage channels, and the water curtain forming device includes an arc-shaped water spraying mechanism and a clamping guide mechanism, the arc-shaped water spraying mechanism is installed on the clamping guide mechanism, the clamping guide mechanism is detachably installed at a position near the water storage chamber in the drainage channel, the clamping guide mechanism is used to fix the arc-shaped water spraying mechanism at a position near the water storage chamber, and the arc-shaped water spraying mechanism is used to absorb the water in the water storage chamber and form a truncated water curtain in the pipe gallery or tunnel. The present application can improve the safety problem when constructing in locations where groundwater and methane areas exist.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe gallery construction safety, and in particular to a safety structure for an integrated pipe gallery or tunnel based on a drainage system. Background Art

[0002] At present, the integrated pipe gallery refers to a channel system that uses the underground space of the city to centrally arrange the city's underground infrastructure. These infrastructures include various pipelines such as water supply, drainage, natural gas, electricity, communications, and heat, as well as underground transportation facilities. The construction of the integrated pipe gallery can effectively avoid the problems of underground pipeline crossing, repeated excavation, and the impact on ground transportation, improve the utilization efficiency of urban underground space, and ensure the safety and reliable operation of urban infrastructure. At the same time, the integrated pipe gallery is also conducive to reducing the impact of urban road construction on traffic and citizens' lives, and is an important form of modern urban infrastructure management.

[0003] With respect to the above-mentioned related technologies, the inventor believes that when construction workers are digging a comprehensive pipe gallery or tunnel, if the digging route passes through the location of groundwater, the water in the area with groundwater needs to be drained in advance before continuing the digging. However, in some locations where groundwater exists, there are also methane areas at the same time. Therefore, after the drainage system is built, continued construction is likely to dig into the methane area, causing the methane area to be connected to the pipe gallery or tunnel, causing irreparable losses. Therefore, when constructing a comprehensive pipe gallery or tunnel in the presence of groundwater areas and methane areas, the safety of the construction area is particularly important. Summary of the invention

[0004] In order to improve the safety issues when carrying out construction in locations where groundwater and methane areas exist, the present application provides a safety structure for an integrated pipeline corridor or tunnel based on a drainage system.

[0005] The present application provides a safety structure for an integrated pipe gallery or tunnel based on a drainage system, which adopts the following technical solutions:

[0006] A safety structure for an integrated pipe gallery or tunnel based on a drainage system, comprising:

[0007] A drainage channel is opened on both sides of the bottom wall of the pipe gallery or tunnel along the length direction of the pipe gallery or tunnel, and water storage chambers are arranged at intervals along the length direction of the drainage channel, and the depth of the water storage chambers is greater than the depth of the drainage channel;

[0008] A water curtain forming device is installed between two drainage channels, and the water curtain forming device includes an arc-shaped water spraying mechanism and a clamping guide mechanism. The arc-shaped water spraying mechanism is installed on the clamping guide mechanism. The clamping guide mechanism is detachably installed at a position close to the water storage chamber in the drainage channel. The clamping guide mechanism is used to fix the arc-shaped water spraying mechanism at a position close to the water storage chamber. The arc-shaped water spraying mechanism is used to absorb water in the water storage chamber and then form a truncated water curtain in the pipe gallery or tunnel.

[0009] The clamping guide mechanism can guide the water suction end of the arc-shaped water spray mechanism into the water storage chamber and simultaneously fix the arc-shaped water spray mechanism on the clamping guide mechanism.

[0010] Preferably, the arc-shaped water spraying mechanism includes a spraying component and a water absorbing component; wherein,

[0011] The water absorbing assembly is installed on the clamping guide mechanism, and the water absorbing assembly is used to guide the water in the water storage chamber into the spraying assembly;

[0012] The spray assembly is installed on the water absorption assembly. After the spray assembly sprays water, it can form a truncated water curtain at the cross section of the pipeline gallery or tunnel, so as to limit the spread of leaked methane on the path of the pipeline gallery or tunnel.

[0013] Preferably, the water absorbing assembly comprises:

[0014] Install the frame;

[0015] A water pump is installed in the installation frame, and a pump outlet of the water pump is connected to the spray assembly;

[0016] A water suction straight pipe is communicated with the pump inlet end of the water pump, and the water suction straight pipe is connected to the clamping guide mechanism;

[0017] When the water suction straight pipe passes through the clamping guide mechanism vertically downward and enters the water storage chamber, the water suction straight pipe will simultaneously drive the clamping guide mechanism to press against the inner wall of the drainage channel in the horizontal direction.

[0018] Preferably, the clamping guide mechanism comprises a seat body and an abutment assembly; wherein,

[0019] The abutment assembly is installed on one side of the seat body, and a vertical cavity is opened on the seat body for the straight water suction pipe to pass through directly. After the straight water suction pipe enters the vertical cavity and extends into the water storage chamber, the abutment assembly automatically abuts against the inner wall of the drainage channel.

[0020] Preferably, the abutment assembly comprises:

[0021] The multi-stage telescopic tube is composed of a plurality of tubes with different diameters connected coaxially, and two adjacent tubes can be telescopically arranged;

[0022] an abutment plate, mounted on the multi-stage telescopic tube;

[0023] After the multi-stage telescopic tube is extended, the abutment plate can be driven to approach the inner wall of the drainage channel until it abuts against the inner wall.

[0024] Preferably, the water absorption assembly further comprises an outer protection mechanism, which is mounted on the outer wall of the water absorption straight pipe and has a first state and a second state; wherein,

[0025] When the outer protection mechanism is in the first state, the outer protection mechanism can reinforce the outer periphery of the water absorption straight pipe;

[0026] When the outer protection mechanism is in the second state, the outer protection mechanism can apply a thrust to the abutment plate from inside the multi-stage telescopic tube.

[0027] Preferably, the outer protection mechanism comprises:

[0028] At least two annular sections, adjacent to each other, hingedly connected, the vertical cavity allowing the annular sections to penetrate, the annular section at the uppermost end connected to the outer tube wall of the water suction straight tube, and the outer tube diameter of the annular section smaller than the inner tube diameter of the smallest tube body in the multi-stage telescopic tube;

[0029] A torsion spring is arranged between adjacent annular sections, a curved cavity is opened in the seat body, the inner diameter of the curved cavity is larger than the inner diameter of the vertical cavity, one end of the curved cavity is connected to the vertical cavity, and the other end is axially connected to the inside of the multi-stage telescopic tube, after the annular section enters the vertical cavity, the torsion spring always has a tendency to rotate the annular section toward the curved cavity side;

[0030] Among them, a notch is opened on one side of the annular section, and the notch allows the water suction straight pipe to detach from the annular section; when the annular section located at the lower end moves to the connecting point between the vertical cavity and the curved cavity, the torsion spring drives the annular section at the lower end to deflect toward the curved cavity, so that the water suction straight pipe detaches from multiple annular sections in sequence during the process of continuing to move downward in the vertical cavity.

[0031] Preferably, the spray assembly comprises:

[0032] At least two arc-shaped tubes, the arc-shaped tubes are detachably connected to each other, and the arc-shaped tube at the end is connected to the pump outlet of the water pump;

[0033] The spray heads are arranged on the arc tube in an up-and-down staggered manner.

[0034] Preferably, a magnet is provided at the end of the annular segment at the lowest end, and an iron block is provided on the abutment plate; wherein, after the annular segment at the lowest end passes through the smallest tube body, the magnet is magnetically adsorbed to the iron block.

[0035] Preferably, a positioning strip is provided in parallel on the wall of the water-absorbing straight pipe, and a positioning cavity is provided in parallel on the inner wall of the vertical cavity, and the positioning cavity is used for inserting the positioning strip; wherein, when the positioning strip is inserted into the positioning cavity, the annular section is in a position where it can be normally bent and enter the curved cavity; and / or,

[0036] A threaded hole communicating with the curved cavity is obliquely provided on the seat body, a threaded rod is threadedly inserted into the threaded hole, and the threaded rod is used to abut against the annular joint.

[0037] In summary, the present application includes at least one of the following beneficial technical effects:

[0038] 1. If methane leakage occurs during the excavation of a pipe gallery or tunnel, the methane sensor will sense the methane leakage and alarm, and transmit the information to the power supply. After receiving the information, the power supply will be electrically connected to the water curtain forming device and start the water curtain forming device. The water curtain forming device absorbs water from the water storage chamber in the drainage channel and generates a water curtain in the tunnel or pipe gallery to effectively block the spreading methane. When the construction personnel escape in the pipe gallery or tunnel through the water curtain forming device, the methane will be blocked by the water curtain at a position close to the face. There will not be too much methane at a position far from the face of the water curtain forming device. At this time, the construction personnel will not easily inhale too much methane during the escape process, thereby reserving more escape time for the construction personnel and improving the safety during construction in the pipe gallery or tunnel;

[0039] 2. When methane gas contacts the water curtain, part of the methane can be adsorbed or condensed by water, thereby reducing the methane concentration in the air. The water curtain forming device in this application can be used in conjunction with the existing ventilation system, that is, when constructing a tunnel or pipe gallery where there may be a methane area, a ventilation system will be installed in the tunnel or pipe gallery in advance. The ventilation system is mainly responsible for discharging the leaked methane out of the tunnel or pipe gallery, and the water curtain formed in this application can physically form a barrier to slow down the diffusion rate of methane gas, giving the ventilation system more time to discharge methane out of the tunnel and improve construction safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0041] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0042] Figure 2 It is a partial schematic diagram for showing a water curtain forming device according to an embodiment of the present application;

[0043] Figure 3 This is a partial cross-sectional view of an embodiment of the present application for showing the clamping guide mechanism. Figure 1 ;

[0044] Figure 4 This is a partial schematic diagram of an embodiment of the present application for showing the outer protection mechanism Figure 1 ;

[0045] Figure 5 This is a partial schematic diagram of an embodiment of the present application for showing the outer protection mechanism Figure 2 ;

[0046] Figure 6 This is a partial cross-sectional view of an embodiment of the present application for showing the clamping guide mechanism. Figure 2 .

[0047] In the figure,

[0048] 100, drainage channel; 110, water storage chamber; 200, water curtain forming device;

[0049] 210, arc-shaped water spray mechanism; 2110, spray assembly; 2111, arc-shaped pipe; 2112, spray head; 2120, water absorption assembly; 2121, mounting frame; 2122, water pump; 2123, water absorption straight pipe;

[0050] 220, clamping guide mechanism; 2210, seat body; 2211, vertical cavity; 2212, curved cavity; 2213, positioning cavity; 2214, threaded hole; 2220, abutment assembly; 2221, multi-stage telescopic tube; 2222, tube body; 2223, abutment plate;

[0051] 300, outer protection mechanism; 310, annular joint; 311, notch; 320, torsion spring;

[0052] 400, magnet;

[0053] 500, iron block;

[0054] 600, positioning bar;

[0055] 700, Threaded rod. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0057] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments 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.

[0058] The following is further described in conjunction with specific embodiments. Figure 1-Figure 6 The present invention is a safety structure for an integrated pipe gallery or tunnel based on a drainage system, including a drainage channel 100 and a water curtain forming device 200, wherein the drainage channel 100 is opened on both sides of the bottom wall of the pipe gallery or tunnel along the length direction of the pipe gallery or tunnel. Exemplarily, the location of the drainage channel 100 is a position close to the side wall on the bottom wall of the pipe gallery or tunnel, which can not affect the normal passage of construction personnel, and can also achieve normal drainage. Water storage chambers 110 are spaced apart along the length direction of the drainage channel 100, and the depth of the water storage chamber 110 is greater than the depth of the drainage channel 100. More water can be stored at the location of the water storage chamber 110, which is convenient for water demand in emergency situations during construction.

[0059] In some embodiments, in combination Figure 1 , 2 , the water curtain forming device 200 is installed between the two drainage channels 100. Exemplarily, the water curtain forming device 200 spans the bottom wall of the tunnel or pipe gallery, and can also be used for the normal passage of retreating construction personnel. Further, the water curtain forming device 200 includes an arc-shaped water spraying mechanism 210 and a snap-on guide mechanism 220, wherein the arc-shaped water spraying mechanism 210 is installed on the snap-on guide mechanism 220, and the snap-on guide mechanism 220 is detachably installed in the drainage channel 100 near the water storage chamber 110. Exemplarily, the detachable manner may be abutment, bolt connection or other manners. The snap-on guide mechanism 220 is used to fix the arc-shaped water spraying mechanism 210 near the water storage chamber 110, and the arc-shaped water spraying mechanism 210 is used to absorb the water in the water storage chamber 110 and form a truncated water curtain in the pipe gallery or tunnel.

[0060] In some embodiments, the snap-fit ​​guide mechanism 220 can introduce the water absorption end of the arc-shaped water spray mechanism 210 into the water storage chamber 110 while simultaneously securing the arc-shaped water spray mechanism 210 on the snap-fit ​​guide mechanism 220, that is, when the arc-shaped water spray mechanism 210 can normally absorb water from the water storage chamber 110, the arc-shaped water spray mechanism 210 will automatically be secured on the snap-fit ​​guide mechanism 220 at the same time, thereby allowing the arc-shaped water spray mechanism 210 to absorb water normally and improving the water absorption stability.

[0061] In some embodiments, a methane sensor is also installed on the tunnel face side of the tunnel or the tunnel, the methane sensor is electrically connected to the power supply in the tunnel or the tunnel, and the water curtain forming device 200 is electrically connected to the power supply in the tunnel or the tunnel. Exemplarily, the water curtain forming device 200 is installed 5-10 meters away from the tunnel face, which can leave construction space and achieve the effect of timely response.

[0062] In the above scheme, if a methane leak occurs during the excavation of a pipe gallery or a tunnel, the methane sensor will sense the methane leak and alarm, and transmit the information to the power supply. After receiving the information, the power supply will be electrically connected to the water curtain forming device 200 and start the water curtain forming device 200. The water curtain forming device 200 absorbs water from the water storage chamber 110 in the drainage channel 100 and generates a water curtain in the tunnel or pipe gallery, effectively blocking the spreading methane. After the construction personnel escape in the pipe gallery or tunnel through the water curtain forming device 200, the methane will be blocked by the water curtain at a position close to the face. There will not be too much methane at a position far from the face of the water curtain forming device 200. At this time, the construction personnel will not easily inhale too much methane during the escape process, thereby reserving more escape time for the construction personnel and improving the safety during construction in the pipe gallery or tunnel. It is worth noting that the electrical connection control between the methane sensor, the power supply and the water curtain forming device 200 is a prior art, which can be achieved by existing electrical means and will not be repeated here.

[0063] In some embodiments, Figure 2 , 3 As shown, the arc-shaped water spraying mechanism 210 includes a spraying assembly 2110 and a water absorbing assembly 2120, wherein the water absorbing assembly 2120 is mounted on the clamping guide mechanism 220, and the water absorbing assembly 2120 is used to guide the water in the water storage chamber 110 to the spraying assembly 2110. Exemplarily, the water absorbing assembly 2120 is detachably mounted on the clamping guide mechanism 220, and the detachable manner may be plug-in, threaded connection, etc.; the water absorbing assembly 2120 is used to guide the water in the water storage chamber 110 to the spraying assembly 2110; the spraying assembly 2110 is mounted on the water absorbing assembly 2120, and after the spraying assembly 2110 sprays water, a truncated water curtain can be formed at the cross section of the pipe gallery or tunnel, so that the spread of the leaked methane on the path of the pipe gallery or tunnel is limited.

[0064] In the above scheme, when methane gas contacts the water curtain, part of the methane can be adsorbed or condensed by water, thereby reducing the methane concentration in the air. Exemplarily, the water curtain forming device 200 in the present application can be used in conjunction with the existing ventilation system, that is, when constructing a tunnel or pipe gallery where a methane area may exist, a ventilation system will be installed in the tunnel or pipe gallery in advance. The ventilation system is mainly responsible for discharging the leaked methane out of the tunnel or pipe gallery, and the water curtain formed in the present application can physically form a barrier to slow down the diffusion rate of methane gas, giving the ventilation system more time to discharge methane out of the tunnel, thereby improving construction safety.

[0065] In some embodiments, in combination Figure 2 , 3 The water suction assembly 2120 includes a mounting frame 2121, a water pump 2122 and a water suction straight pipe 2123, wherein the water pump 2122 is mounted in the mounting frame 2121, and the pump outlet of the water pump 2122 is connected to the spray assembly 2110. Exemplarily, the mounting frame 2121 is mounted on the water suction straight pipe 2123, and the weight of the mounting frame 2121 and the water pump 2122 is borne by the water suction straight pipe 2123; the water suction straight pipe 2123 is connected to the pump inlet of the water pump 2122, and the water suction straight pipe 2123 is connected to the clamping guide mechanism 220, and the connection method of the water suction straight pipe 2123 and the clamping guide mechanism 220 is plug-in. When the water suction straight pipe 2123 passes vertically downward through the clamping guide mechanism 220 and enters the water storage chamber 110, the water suction straight pipe 2123 will simultaneously drive the clamping guide mechanism 220 to press against the inner wall of the drainage channel 100 in the horizontal direction, so as to simultaneously achieve the two technical effects of fixing the water suction straight pipe 2123 and absorbing water.

[0066] In some embodiments, Figure 2 , 3As shown, the snap-on guiding mechanism 220 includes a seat body 2210 and an abutment assembly 2220. For example, the cross-sectional shape of the drain channels 100 on both sides is a rectangle, and the shape of the seat body 2210 is also a rectangular body adapted to the drain channel 100, but the width of the seat body 2210 is smaller than the width of the drain channel 100. This makes it easy to place the seat body 2210 into the drain channel 100 without affecting the normal drainage of the drain channel 100. The abutment component 2220 is installed on one side of the seat body 2210. A vertical cavity 2211 is opened on the seat body 2210 for the water suction straight pipe 2123 to pass directly through. After the water suction straight pipe 2123 enters the vertical cavity 2211 and extends into the water storage chamber 110, the abutment component 2220 automatically abuts against the inner wall of the drainage channel 100, that is, after the water suction straight pipe 2123 is inserted into the vertical cavity 2211, the abutment component 2220 can be pushed so that the abutment component 2220 is pushed to the side wall of the drainage channel 100 by external force, thereby limiting the position of the seat body 2210 and preventing the seat body 2210 from becoming unstable due to the movement of water flow in the drainage channel 100.

[0067] In some embodiments, in combination Figure 2 , 3 The abutment assembly 2220 includes a multi-stage telescopic tube 2221 and an abutment plate 2223, wherein the multi-stage telescopic tube 2221 is composed of a plurality of tube bodies 2222 with different diameters connected coaxially. Exemplarily, the diameter of the tube body 2222 gradually decreases from the side close to the seat body 2210 to the side far away from the seat body 2210, and the connection between adjacent tube bodies 2222 is provided with a protrusion and / or an anti-detachment flange, so that the two adjacent tube bodies 2222 are not easy to be separated during the relative movement. The abutment plate 2223 is installed on the multi-stage telescopic tube 2221. Exemplarily, the abutment plate 2223 is connected to the end of the tube body 2222 farthest from the seat body 2210 in the multi-stage telescopic tube 2221, and the connection method can be welding, bonding, etc. For example, after the seat body 2210 is placed in the drain channel 100 , the telescopic direction of the multi-stage telescopic tube 2221 is horizontal extension, that is, it can directly drive the abutment plate 2223 to approach the inner wall of the drain channel 100 until it abuts against it.

[0068] In some embodiments, in combination Figure 3 , 4The water absorption component 2120 also has an outer protection mechanism 300, which is installed on the outer wall of the water absorption straight pipe 2123. The outer protection mechanism 300 has a first state and a second state. When the outer protection mechanism 300 is in the first state, the outer protection mechanism 300 can reinforce the outer periphery of the water absorption straight pipe 2123 so that the part of the water absorption straight pipe 2123 exposed to the vertical cavity 2211 is wrapped. When the water absorption straight pipe 2123 collapses due to gravity, the outer protection mechanism 300 can share the force on the water absorption straight pipe 2123, so that the water absorption straight pipe 2123 is stably in the vertical cavity 2211; and due to the setting of the outer protection mechanism 300, the water absorption straight pipe 2123 will not directly conflict with the opening edge of the vertical cavity 2211, reducing the possibility of deformation of the water absorption straight pipe 2123. When the outer protection mechanism 300 is in the second state, the outer protection mechanism 300 can apply a thrust to the abutment plate 2223 from the multi-stage telescopic tube 2221. At this time, a part of the outer protection mechanism 300 located in the vertical cavity 2211 will act as a pushing member to apply a thrust to the abutment plate 2223, so that the outer protection mechanism 300 has different effects in the first state and the second state.

[0069] In some embodiments, in combination Figures 3 to 5 , the outer protection mechanism 300 includes at least two annular segments 310 and a torsion spring 320, wherein adjacent annular segments 310 are hinged to each other. Exemplarily, the hinge is set at the end edges of adjacent annular segments 310 that are close to each other, that is, the adjacent annular segments 310 can only be bent at one angle, and when bending at another corresponding angle, the adjacent annular segments 310 will remain in a coaxial state. The vertical cavity 2211 can be inserted into the annular segment 310, and the annular segment 310 located at the uppermost end is connected to the outer tube wall of the water absorption straight tube 2123, and the outer tube diameter of the annular segment 310 is smaller than the inner tube diameter of the smallest tube body 2222 in the multi-stage telescopic tube 2221, so that the annular segment 310 can be normally inserted into the multi-stage telescopic tube 2221 and abut against the abutment plate 2223. The torsion spring 320 is arranged between adjacent annular segments 310. For example, the torsion spring 320 can be arranged at the hinge point of adjacent annular segments 310, that is, one end of the torsion spring 320 is connected to the end edge of one annular segment 310, and the other end is connected to the end edge of another adjacent annular segment 310. A curved cavity 2212 is provided in the seat body 2210. The inner diameter of the curved cavity 2212 is larger than the inner diameter of the vertical cavity 2211, so that the annular segment 310 can be normally inserted into the curved cavity 2212; one end of the curved cavity 2212 is connected to the vertical cavity 2211, and the other end is axially connected to the inside of the multi-stage telescopic tube 2221. For example, the path of the curved cavity 2212 is an arc-shaped smooth cavity, so that the multiple annular segments 310 will not be stuck when moving in the curved cavity 2212.

[0070] In a further embodiment, referring to Figure 4 , 5 A notch 311 is provided on one side of the annular section 310, and the notch 311 allows the water suction straight pipe 2123 to be separated from the annular section 310. Exemplarily, the width of the notch 311 is greater than the outer diameter of the water suction straight pipe 2123, so that the water suction straight pipe 2123 can be directly removed from the notch 311 without getting stuck. When the annular segment 310 at the lower end is displaced to the connecting point between the vertical cavity 2211 and the curved cavity 2212, the torsion spring 320 drives the annular segment 310 at the lower end to deflect toward the curved cavity 2212, that is, when the annular segment 310 at the lower end moves in the vertical cavity 2211 to the connecting point between the vertical cavity 2211 and the curved cavity 2212, the torsion force generated by the torsion spring 320 will directly cause the annular segment 310 at the lower end to be offset relative to the adjacent annular segment 310 at the upper end and rotate into the curved cavity 2212, so that the water suction straight pipe 2123 will detach from multiple annular segments 310 one by one during the process of continuing to move downward in the vertical cavity 2211. Continue to push the water absorption straight pipe 2123 downward, the water absorption straight pipe 2123 will directly pass through the bottom opening of the vertical cavity 2211 and extend into the water storage chamber 110, and the annular section 310 that has separated from the water absorption straight pipe 2123 and entered into the curved cavity 2212 will move along the curved cavity 2212 toward the multi-stage telescopic tube 2221 side, and finally enter into the multi-stage telescopic tube 2221 from the curved cavity 2212 and push the abutment plate 2223. At this time, the multi-stage telescopic tube 2221 will extend and allow the abutment plate 2223 to move horizontally toward the side wall of the drainage channel 100 until it fits.

[0071] For example, when the seat 2210 is placed in the drain 100, the wall surface of the seat 2210 close to the bottom wall of the tunnel or the pipe gallery is placed in close contact with one side wall surface of the drain 100, so that space can be left on the other side of the drain 100 for the abutment plate 2223 to move. When the abutment plate 2223 abuts against the other side wall surface of the drain 100, both sides of the seat 2210 are pressed tightly, thereby achieving fixation in the drain 100.

[0072] In some embodiments, Figure 1 , 2As shown, the spray assembly 2110 includes at least two arc tubes 2111 and a spray head 2112, wherein the connected arc tubes 2111 are detachably connected, and the arc tube 2111 located at the end is connected to the pump outlet of the water pump 2122. Exemplarily, the ends of two adjacent arc tubes 2111 are connected by flanges, which is not only convenient for disassembly, but also not easy to leak at the connection part during water delivery. Exemplarily, the curvature of the multiple arc tubes 2111 after assembly is adapted to the curvature of the upper wall of the tunnel or pipe gallery to meet the spraying requirements of forming a water curtain in the cross section of the tunnel or pipe gallery. The spray heads 2112 are staggered up and down on the arc tubes 2111. Exemplarily, the length direction of the spray heads 2112 is parallel to the diameter direction of the formed arc tubes 2111, and the spacing between two adjacent spray heads 2112 is small, so that the sprayed water can fully cover the cross section of the tunnel or pipe gallery, thereby forming a blocking water curtain.

[0073] In some embodiments, Figure 3 , 6 As shown, a magnet 400 is provided at the end of the annular segment 310 at the lowest end, and an iron block 500 is provided on the abutment plate 2223. After the annular segment 310 at the lowest end passes through the smallest tube body 2222, the magnet 400 and the iron block 500 are magnetically adsorbed. In this way, when the annular segment 310 is retracted into the curved cavity 2212, the annular segment 310 at the lowest end can drive the abutment plate 2223 to move toward the direction close to the seat body 2210, thereby easily releasing the lock of the seat body 2210 in the drainage channel 100 and facilitating the removal of the seat body 2210.

[0074] In some embodiments, in combination Figure 4 , 6 , a positioning strip 600 is provided in parallel on the wall of the water-absorbing straight pipe 2123, and a positioning cavity 2213 is provided in parallel on the inner wall of the vertical cavity 2211. The positioning cavity 2213 is used for inserting the positioning strip 600. When the positioning strip 600 is inserted into the positioning cavity 2213, the annular section 310 is in a position where it can be normally bent and enter the curved cavity 2212. Exemplarily, the cross-sectional shape of the positioning strip 600 used for the positioning cavity 2213 is fan-shaped, which is convenient for docking and insertion. After the positioning strip 600 is provided, as long as the positioning strip 600 is inserted into the positioning groove, the position of the annular section 310 can be limited. When the water-absorbing straight pipe 2123 moves vertically downward, the torsion spring 320 drives the annular section 310 to deflect, so that the annular section 310 can be transferred from the vertical cavity 2211 to the curved cavity 2212. Exemplarily, a flaring is provided at the connection point between the vertical cavity 2211 and the curved cavity 2212 to leave rotation space for the annular segment 310 , which can avoid the situation where the annular segment 310 is stuck during rotation and cannot be normally rotated into the curved cavity 2212 to a certain extent.

[0075] In some embodiments, Figure 3 , 6 The seat body 2210 is provided with a threaded hole 2214 which is connected with the curved cavity 2212. A threaded rod 700 is inserted into the threaded hole 2214. The threaded rod 700 is used to abut against the ring segment 310. After the threaded rod 700 and the ring segment 310 abut against each other, the threaded rod 700 can limit the movement of the ring segment 310 in the curved cavity 2212, so that the abutment plate 2223 can be stably located in a position that fits the side wall of the drainage channel 100. For example, a rubber block is provided at the abutment short end of the threaded rod 700, so that when the threaded rod 700 is close to the ring segment 310, the rubber block abuts against the ring segment 310, thereby preventing the ring segment 310 from being abutted and deformed.

[0076] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A safety structure for an integrated pipe gallery or tunnel based on a drainage system, characterized in that: include: A drainage channel (100) is opened on both sides of the bottom wall of the pipeline gallery or the tunnel along the length direction of the pipeline gallery or the tunnel, and water storage chambers (110) are arranged at intervals along the length direction of the drainage channel (100), and the depth of the water storage chambers (110) is greater than the depth of the drainage channel (100); A water curtain forming device (200) is installed between two drainage channels (100), the water curtain forming device (200) comprising an arc-shaped water spraying mechanism (210) and a clamping guide mechanism (220), the arc-shaped water spraying mechanism (210) being installed on the clamping guide mechanism (220), the clamping guide mechanism (220) being detachably installed at a position close to a water storage chamber (110) in the drainage channel (100), and the clamping guide mechanism (220) being used to The arc-shaped water spray mechanism (210) is fixed at a position close to the water storage chamber (110), and the arc-shaped water spray mechanism (210) is used to absorb water in the water storage chamber (110) to form a cut-off water curtain in the pipe gallery or tunnel; wherein the clamping guide mechanism (220) can introduce the water absorption end of the arc-shaped water spray mechanism (210) into the water storage chamber (110) and simultaneously fix the arc-shaped water spray mechanism (210) on the clamping guide mechanism (220); The arc-shaped water spraying mechanism (210) comprises a spraying assembly (2110) and a water absorbing assembly (2120); wherein the water absorbing assembly (2120) is installed on the clamping guide mechanism (220), and the water absorbing assembly (2120) is used to guide the water in the water storage chamber (110) into the spraying assembly (2110); the spraying assembly (2110) is installed on the water absorbing assembly (2120), and after the spraying assembly (2110) sprays water, a cut-off water curtain can be formed at the cross section of the pipe gallery or tunnel, so that the spread of the leaked methane on the path of the pipe gallery or tunnel is limited; The water absorption component (2120) comprises: a mounting frame (2121); a water pump (2122) mounted in the mounting frame (2121), the pump outlet end of the water pump (2122) being connected to the spray component (2110); a water absorption straight pipe (2123) being connected to the pump inlet end of the water pump (2122), and the water absorption straight pipe (2123) being connected to the clamping guide mechanism (220); wherein, when the water absorption straight pipe (2123) vertically passes through the clamping guide mechanism (220) downward and enters the water storage chamber (110), the water absorption straight pipe (2123) will synchronously drive the clamping guide mechanism (220) to press against the inner wall of the drainage channel (100) in the horizontal direction; The clamping guide mechanism (220) comprises a seat body (2210) and an abutment assembly (2220); wherein: The abutment component (2220) is installed on one side of the seat body (2210), and a vertical cavity (2211) is provided on the seat body (2210) for the water absorption straight pipe (2123) to pass through directly. After the water absorption straight pipe (2123) enters the vertical cavity (2211) and extends into the water storage chamber (110), the abutment component (2220) automatically abuts against the inner wall of the drainage channel (100); The abutment assembly (2220) comprises: a multi-stage telescopic tube (2221), which is composed of a plurality of tube bodies (2222) with different tube diameters connected coaxially, and two adjacent tube bodies (2222) are telescopically arranged; and an abutment plate (2223), which is installed on the multi-stage telescopic tube (2221); wherein, after the multi-stage telescopic tube (2221) is extended, the abutment plate (2223) can be driven to approach the inner wall of the drainage channel (100) until it abuts against the inner wall; The water absorption component (2120) further comprises an outer protection mechanism (300), wherein the outer protection mechanism (300) is installed on the outer wall of the water absorption straight pipe (2123), and the outer protection mechanism (300) has a first state and a second state; wherein, when the outer protection mechanism (300) is in the first state, the outer protection mechanism (300) can reinforce the outer periphery of the water absorption straight pipe (2123); and when the outer protection mechanism (300) is in the second state, the outer protection mechanism (300) can apply a thrust to the abutment plate (2223) from inside the multi-stage telescopic pipe (2221); The outer protection mechanism (300) comprises: at least two annular sections (310), adjacent annular sections (310) are hinged to each other, the vertical cavity (2211) is for the annular sections (310) to penetrate, the annular section (310) located at the uppermost end is connected to the outer tube wall of the water absorption straight tube (2123), and the outer tube diameter of the annular section (310) is smaller than the inner tube diameter of the smallest tube body (2222) in the multi-stage telescopic tube (2221); a torsion spring (320) is arranged between adjacent annular sections (310), a curved cavity (2212) is opened in the seat body (2210), the inner diameter of the curved cavity (2212) is larger than the inner diameter of the vertical cavity (2211), one end of the curved cavity (2212) is connected to the vertical cavity (2211), and the other end is connected to the multi-stage telescopic tube (2221). The annular section (310) and the curved cavity (2212) are axially connected to each other, and after the annular section (310) enters the vertical cavity (2211), the torsion spring (320) always has the tendency to rotate the annular section (310) toward the curved cavity (2212); wherein a notch (311) is provided on one side of the annular section (310), and the notch (311) allows the water absorption straight pipe (2123) to detach from the annular section (310); when the annular section (310) at the lowest end moves to the connecting point between the vertical cavity (2211) and the curved cavity (2212), the torsion spring (320) drives the annular section (310) at the lowest end to deflect toward the curved cavity (2212), so that the water absorption straight pipe (2123) is detached from the plurality of annular sections (310) in sequence during the process of continuing to move downward in the vertical cavity (2211).

2. A safety structure for an integrated pipe gallery or tunnel based on a drainage system according to claim 1, characterized in that: The spray assembly (2110) comprises: At least two arc-shaped tubes (2111), the arc-shaped tubes (2111) are detachably connected to each other, and the arc-shaped tube (2111) at the end is connected to the pump outlet of the water pump (2122); The spray heads (2112) are arranged on the arc tube (2111) in an alternating manner up and down.

3. A safety structure for an integrated pipe gallery or tunnel based on a drainage system according to claim 1, characterized in that: A magnet (400) is provided at the end of the annular segment (310) at the lowest end, and an iron block (500) is provided on the abutment plate (2223); wherein, after the annular segment (310) at the lowest end passes through the smallest tube (2222), the magnet (400) and the iron block (500) are magnetically attracted.

4. A safety structure for an integrated pipe gallery or tunnel based on a drainage system according to claim 1, characterized in that: A positioning strip (600) is provided in parallel on the wall of the water-absorbing straight pipe (2123), and a positioning cavity (2213) is provided in parallel on the inner wall of the vertical cavity (2211), and the positioning cavity (2213) is used for inserting the positioning strip (600); wherein, when the positioning strip (600) is inserted into the positioning cavity (2213), the annular section (310) is in a position where it can be normally bent and enter the curved cavity (2212); and / or, The seat body (2210) is provided with a threaded hole (2214) which is in communication with the curved cavity (2212) and is obliquely provided. A threaded rod (700) is inserted into the threaded hole (2214) and is used to abut against the annular joint (310).

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