A self-rescue device for compressed air in tunnel operations

Abstract

This invention belongs to the field of safety equipment, specifically a compressed air self-rescue device for tunnel operations, including a steel support frame; a water pipe is fixedly connected to the inside of the side wall of the steel support frame; multiple sets of valves are fixedly connected to the side wall of the water pipe; the device is fixed inside the tunnel by the steel support frame and the water pipe is connected to an external pipeline. When the valve is opened, the unclean compressed air is converted into clean breathing air, allowing breathing through a mask over the mouth and nose, thus achieving the function of compressed air self-rescue. The guide pipe is connected to the water storage chamber inside the steel support frame. When the person in distress is short of water, the sealing plug can be removed to drink clean water. When drinking stops, the first torsion spring of the guide pipe is released to drive the winding rod to rewind, thus resetting the winding guide pipe. The blocking plate blocks the channel of the fixed block. When drinking water is needed, the handle is pulled outward, and the groove of the blocking plate slides to correspond with the channel of the fixed block, allowing water inside the steel support frame to flow down, thus achieving the function of self-adaptive blocking of the channel of the fixed block.

Description

Technical Field

[0001] This invention belongs to the field of safety equipment, specifically a compressed air self-rescue device for tunnel operations. Background Technology

[0002] Compressed air self-rescue devices are used in emergency situations to provide clean breathing air to people in distress, thereby stabilizing their emotions and enabling them to save themselves on-site.

[0003] A Chinese patent with publication number CN102425447B discloses a compressed air self-rescue device for coal mines, including: a three-way pipeline, a solenoid valve, an LED alarm light, a box door with an electromagnetic lock, a box with a high-fluorescence strip, an air supply, a box for installing a control panel, and a mouth and nose mask. It comprehensively considers the defects of existing devices in terms of pressure reduction, flow regulation, gas purification, noise reduction, and operation, and improves and optimizes them. This patent is easy to find, has low cost, high compressed air utilization rate, beautiful installation, meets the standardization and intensification requirements of modern mines, can realize networked communication and early warning functions for underground safety, and the air supply is corrosion-resistant and not easy to rust.

[0004] When working in a tunnel, compressed air self-rescue devices also need to be installed inside the tunnel to ensure safe escape and self-rescue in the event of a tunnel collapse. However, the compressed air self-rescue devices currently installed in tunnels are usually used to provide fresh air. If the rescue time is too long, the people in distress are prone to dehydration in the confined environment, which can lead to physical discomfort and even threaten their lives.

[0005] Therefore, the present invention provides a compressed air self-rescue device for tunnel operations. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A tunnel operation compressed air self-rescue device, comprising a steel support frame; a water pipe fixedly connected to the inside of the side wall of the steel support frame; multiple sets of valves fixedly connected to the side wall of the water pipe; a mask fixedly connected to the side wall of each valve via an air guide pipe; a water storage chamber opened inside the steel support frame and located above the water pipe; a connecting component provided on the side wall of the steel support frame for emergency personnel to drink water; in the event of a tunnel collapse during tunnel operations, emergency personnel quickly seek refuge under the steel support frame. Typically, the infrastructure structure near the steel support frame has high strength, and the steel support frame can be further utilized for this purpose. The support frame shields against collapsed rocks, providing space for those in distress. The water-storage chamber inside the steel support frame is filled with clean water and sealed with connecting components. An external ventilation pipe connects to the water pipe. When the valve is turned to open, unclean compressed air is converted into clean breathing air. Wearing a mask over the mouth and nose allows for compressed air self-rescue. When thirsty, the connecting components can be used to draw water from the water-storage chamber inside the steel support frame to relieve thirst and discomfort while awaiting rescue. The compressed air self-rescue system is installed on the compressed air pipeline inside the tunnel. The installation location should be a spacious, well-supported sidewalk free of debris, facilitating self-rescue for on-site personnel.

[0008] Preferably, a fixing block is fixed to the side wall of the steel support frame; a storage box is fixed to the bottom end of the fixing block; a guide tube is fixed to the inside of the fixing block; a winding rod is rotatably connected to the inner side wall of the storage box via a torsion spring, and the guide tube is wound around the winding rod; a sealing plug is inserted into the bottom end of the guide tube; when a person in distress takes refuge under the steel support frame by inhaling oxygen, water inside the steel support frame will flow into the guide tube from the channel inside the fixing block, pulling the guide tube downwards, causing the winding rod to rotate, the torsion spring to be stressed, and the sealing plug to be pulled out and placed in the mouth, allowing the person to drink the water in the water storage chamber inside the steel support frame to quench their thirst. When drinking stops, the sealing plug is inserted into the guide tube, and after the guide tube is released, the torsion spring drives the winding rod to reset and rewind the guide tube, thus storing the guide tube.

[0009] Preferably, a blocking plate is slidably connected to the inner side wall of the fixing block; a through groove is opened on the side wall of the blocking plate; a handle is fixedly connected to the side wall of the blocking plate; the blocking plate blocks the channel inside the fixing block, thereby blocking the water storage chamber inside the steel support frame. When drinking water is needed, the hand holds the handle and pulls the blocking plate outward. The through groove of the blocking plate corresponds to the channel of the fixing block, and the water inside the steel support frame flows down, facilitating the adaptive drinking effect.

[0010] Preferably, a first elastic element is sleeved on the side wall of the handle; a limit block is fixedly connected to the side wall of the guide tube and located at the lower end of the guide tube; the first elastic element is sleeved on the handle, and one end of the first elastic element is fixedly connected to the side wall of the fixed block. When the handle is pulled, the first elastic element is stretched and subjected to force. The person in distress holds the side wall of the limit block and pulls the guide tube down to drink water. After drinking, the sealing plug is inserted into the guide tube, and the guide tube is released and retracted. The limit block plays a role in limiting the guide tube. After the handle is released, the first elastic element pulls the handle to retract, causing the blocking plate to slide and block the channel of the fixed block, thus automatically resetting and sealing the water storage chamber.

[0011] Preferably, a magnetic block is fixed to the inner wall of the blocking plate; a flow guide hole is formed inside the magnetic block; a first baffle is rotatably connected to the inner wall of the fixing block via a second torsion spring; a second baffle is rotatably connected to the inner wall of the fixing block via a third torsion spring; a first magnetic ball is fixed to the inside of the first baffle; a second magnetic ball is fixed to the inside of the second baffle; the first and second magnetic balls attract each other when they are close to each other; the magnetic block attracts each other when it is close to the first and second magnetic balls respectively; the first and second torsion springs drive the first and second baffles to assemble respectively, and the magnetic balls attract each other magnetically, enhancing the water sealing effect in the water storage chamber. When the magnetic block inside the blocking plate approaches, the magnetic block simultaneously attracts the first and second magnetic balls, and the first and second baffles open the channel as the first and second torsion springs rotate, facilitating the drinking water source.

[0012] Preferably, the inner wall of the fixing block is fixed with two sets of elastic pull ropes, and the two sets of elastic pull ropes are respectively fixed to the side walls of the first baffle and the second baffle; the side walls of the first baffle and the second baffle are respectively fixed with sealing blocks; by pulling with the two sets of elastic pull ropes fixed to the side walls of the first baffle and the second baffle, and with the two sets of sealing blocks sealing the gaps at the first torsion spring and the second torsion spring, the tightness of the sealing effect on the internal channel of the fixing block is further improved.

[0013] Preferably, a sliding rod is slidably connected to the inner wall of the steel support frame and is located inside the water storage chamber; a load-bearing block is fixed to the top of the sliding rod; a foam float is fixed to the bottom of the load-bearing block; a sealing gasket is fixed to the inner wall of the steel support frame and is located at the side wall of the sliding rod; the sliding rod slides on the inner wall of the steel support frame, and the sealing gasket seals the sliding part of the sliding rod, reducing water waste. The foam float floats on the water surface. When the water level drops, the load-bearing block presses down on the sliding rod due to its own weight, and the sliding rod slides downward accordingly. This makes it easy for people in distress to observe changes in water level. At the same time, when storing water, staff can also observe the sliding state of the sliding rod and add water to the water storage chamber as needed.

[0014] Preferably, a pressure plate is slidably connected to the inner wall of the steel support frame; a second elastic element is sleeved on the side wall of the pressure plate and located inside the water storage chamber; an alarm switch is installed inside the steel support frame and located below the pressure plate; an alarm is fixedly connected to the side wall of the steel support frame, and the alarm is connected to the alarm switch via a signal line; when the water in the water storage chamber is low, the weight block presses down accordingly. When the weight block presses the foam float against the pressure plate, it means that the water level is low, and the people in distress should try to solve the problem. The second elastic element is squeezed and contracted under force until the bottom of the pressure plate presses against the alarm switch. The alarm switch transmits a signal to the alarm via the signal line, and the alarm sounds an alarm and flashes, serving as a warning to the people in distress.

[0015] Preferably, a horizontal plate is fixedly connected to the side wall of the steel support frame; two sets of support plates are fixedly connected to the top of the horizontal plate, and the support plates are fixedly connected to the side wall of the steel support frame; using the horizontal plate as a support, together with the two sets of support plates, to support the side wall of the steel support frame, further enhances the structural strength of the steel support frame. At the same time, using the horizontal plate fixed below the mask can provide a place for people in distress to sit or lie down, which can help them relieve their emotions, save their energy, and facilitate self-rescue.

[0016] Preferably, the inner wall of the steel support frame is fixedly connected to a fixing frame; the inner wall of the fixing frame is slidably connected to two sets of drawers; the side wall of each drawer is fixedly connected to a handle; when working in the tunnel, workers can hold the two sets of handles to open the two sets of drawers respectively, put some self-rescue tools and some easily stored food into the drawers, and push the drawers into the fixing frame for storage. In case of danger, the tools and food can be used for self-rescue by the people in distress, increasing the probability of self-rescue.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The tunnel operation compressed air self-rescue device of the present invention is fixed in the tunnel by a steel support frame and a water pipe connected to an external pipe. When the valve is opened, the unclean compressed air is converted into clean breathing air. The mask is worn over the mouth and nose for breathing, which plays the role of compressed air self-rescue. The guide pipe is connected to the water storage chamber in the steel support frame. When the rescued personnel are short of water, they can remove the sealing plug to drink clean water. When drinking stops, the first torsion spring of the guide pipe is released to drive the winding rod to rewind, which plays the role of resetting the winding guide pipe. The blocking plate blocks the channel of the fixed block. When drinking water is needed, the handle is pulled outward, and the through groove of the blocking plate slides to correspond with the channel of the fixed block, so that the water inside the steel support frame can flow down, which plays the role of self-adaptive blocking of the channel of the fixed block.

[0019] 2. The tunnel operation compressed air self-rescue device of the present invention uses a first baffle and a second baffle that rotate with multiple sets of torsion springs to block the channel of the fixed block, reducing the overflow of water in the water storage chamber. Two sets of elastic pull ropes pull the first and second baffles respectively, sealing the gaps near the torsion springs with a sealing block, further improving the tightness of the seal. When the magnetic block slides below the first and second magnetic balls, it attracts the first and second magnetic balls, causing the first and second baffles to open, allowing water in the water storage chamber to flow downwards, thus controlling the amount of water flowing down. Finally, a sliding rod slides within the water storage chamber, allowing personnel in distress to observe the water level. When the water level in the water storage chamber is low, an alarm is triggered, serving as a warning to personnel in distress. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the present invention;

[0023] Figure 3 yes Figure 2 Enlarged view of point A;

[0024] Figure 4 yes Figure 3 Enlarged view of point B;

[0025] Figure 5 yes Figure 2 Enlarged view of point C;

[0026] Figure 6 This is a partial structural schematic diagram of the steel support frame in this invention.

[0027] In the diagram: 1. Steel support frame; 11. Water pipe; 12. Valve; 13. Face mask; 2. Fixing block; 21. Storage box; 22. Drainage pipe; 23. Retracting rod; 24. Sealing plug; 3. Blocking plate; 31. Handle; 4. Elastic element No. 1; 41. Limiting block; 5. Magnetic block; 51. Baffle No. 1; 52. Baffle No. 2; 53. Magnetic ball No. 1; 54. Magnetic ball No. 2; 6. Elastic pull rope; 61. Sealing block; 7. Sliding rod; 71. Foam float; 72. Weight block; 73. Sealing gasket; 8. Pressure plate; 81. Elastic element No. 2; 82. Alarm switch; 83. Alarm; 9. Horizontal plate; 91. Support plate; 92. Fixing frame; 93. Drawer; 94. Handle. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0029] Example 1

[0030] like Figures 1 to 2 As shown in the embodiment of the present invention, a compressed air self-rescue device for tunnel operations includes a steel support frame 1; a water pipe 11 is fixedly connected to the inside of the side wall of the steel support frame 1; multiple sets of valves 12 are fixedly connected to the side wall of the water pipe 11; a mask 13 is fixedly connected to the side wall of the valve 12 through an air guide pipe; a water storage chamber is opened inside the steel support frame 1 and is located above the water pipe 11; a connecting component is provided on the side wall of the steel support frame 1 for the rescued personnel to drink water; when tunnel operations are carried out, a compressed air self-rescue device also needs to be installed in the tunnel to achieve safe disaster avoidance and self-rescue in the event of a tunnel collapse. However, the compressed air self-rescue devices currently installed in tunnels are usually used to provide fresh air. If the rescue time is too long, the rescued personnel are prone to dehydration in the confined environment, which can lead to physical discomfort and even threaten the lives of the rescued personnel. Therefore, in tunnel operations, a compressed air self-rescue device is needed to provide fresh air. When a tunnel collapse occurs during tunnel construction, the trapped personnel should quickly seek refuge under the steel support frame 1. The surrounding infrastructure is typically strong, and the steel support frame 1 can be used to shield the trapped personnel from the collapsed rocks, providing them with as much space as possible. The water storage chamber inside the steel support frame 1 is filled with clean water and sealed with connecting components. An external ventilation pipe is connected to the water pipe 11. When the valve 12 is turned to open, the unclean compressed air is converted into clean breathing air. Wearing the mask 13 over the mouth and nose allows for compressed air self-rescue. When thirsty, the connecting components can be used to draw water from the water storage chamber inside the steel support frame 1 to relieve thirst and discomfort while awaiting rescue. The compressed air self-rescue system is installed on the compressed air pipeline inside the tunnel. The installation location should be a spacious, well-supported sidewalk free of debris, facilitating self-rescue for on-site personnel.

[0031] like Figures 1 to 3 As shown, a fixing block 2 is fixedly connected to the side wall of the steel support frame 1; a storage box 21 is fixedly connected to the bottom end of the fixing block 2; a guide pipe 22 is fixedly connected inside the fixing block 2; a winding rod 23 is rotatably connected to the inner side wall of the storage box 21 via a torsion spring, and the guide pipe 22 is wound around the winding rod 23; a sealing plug 24 is inserted into the bottom end of the guide pipe 22; when a person in distress takes refuge by inhaling oxygen under the steel support frame 1, the water inside the steel support frame 1 will flow out from the fixing block 21. The water flows into the inside of the guide tube 22 through the channel inside block 2. Pulling the guide tube 22 downward causes the winding rod 23 to rotate, and the first torsion spring is stressed. The sealing plug 24 is pulled out and put into the mouth, allowing one to drink the water in the water storage chamber inside the steel support frame 1, thus quenching thirst. When drinking stops, the sealing plug 24 is inserted into the inside of the guide tube 22. After releasing the guide tube 22, the first torsion spring drives the winding rod 23 to reset and rewind the guide tube 22, thus storing the guide tube 22.

[0032] A blocking plate 3 is slidably connected to the inner side wall of the fixing block 2; a through groove is opened on the side wall of the blocking plate 3; a handle 31 is fixedly connected to the side wall of the blocking plate 3; when a large amount of clean water is stored inside the steel support frame 1, in order to reduce the overflow of water inside the steel support frame 1, the blocking plate 3 is used to block the channel inside the fixing block 2, thereby blocking the water storage cavity inside the steel support frame 1. When drinking water is needed, the hand holds the handle 31 and pulls the blocking plate 3 outward. The through groove of the blocking plate 3 corresponds to the channel of the fixing block 2, and the water inside the steel support frame 1 flows downward, which facilitates the effect of adaptive drinking.

[0033] The handle 31 has a first elastic element 4 sleeved on its side wall; the guide tube 22 has a limit block 41 fixedly connected to its side wall and located at the lower end of the guide tube 22; when a person in distress is trying to save themselves in a confined space, after drinking water, they may forget to seal the channel of the fixing block 2 with the blocking plate 3 due to panic, resulting in water overflow and waste. Therefore, the first elastic element 4 is sleeved on the handle 31 and one end of the first elastic element 4 is fixedly connected to the side wall of the fixing block 2. When the handle 31 is pulled, the first elastic element 4 is stretched and subjected to force. The person in distress holds the side wall of the limit block 41 and pulls the guide tube 22 down to drink water. After drinking, the sealing plug 24 is inserted into the guide tube 22, and the guide tube 22 is released and retracted. The limit block 41 plays a role in limiting the guide tube 22. After the handle 31 is released, the first elastic element 4 pulls the handle 31 to retract, causing the blocking plate 3 to slide and block the channel of the fixing block 2, thus automatically resetting and sealing the water storage chamber.

[0034] like Figures 1 to 4 As shown, a magnetic block 5 is fixedly attached to the inner wall of the blocking plate 3; a guide hole is opened inside the magnetic block 5; a first baffle 51 is rotatably connected to the inner wall of the fixing block 2 via a second torsion spring; a second baffle 52 is rotatably connected to the inner wall of the fixing block 2 via a third torsion spring; a first magnetic ball 53 is fixedly attached inside the first baffle 51; a second magnetic ball 54 is fixedly attached inside the second baffle 52; the first magnetic ball 53 and the second magnetic ball 54 can attract each other when they are close to each other; the magnetic block 5 is respectively connected to the first magnetic ball 53 and the second magnetic ball 54. When the balls 54 approach each other, they attract each other with opposite polarities. When water overflows from the water storage chamber, in order to improve the sealing effect on the water source, the first torsion spring and the second torsion spring drive the first baffle 51 and the second baffle 52 to assemble respectively. Together with the first magnetic ball 53 and the second magnetic ball 54, they attract each other magnetically, which enhances the sealing effect on the water in the water storage chamber. When the magnetic block 5 inside the blocking plate 3 approaches, the magnetic block 5 simultaneously attracts the first magnetic ball 53 and the second magnetic ball 54. The first baffle 51 and the second baffle 52 open the channel as the first torsion spring and the second torsion spring rotate, which facilitates the drinking water source.

[0035] like Figure 4As shown, two sets of elastic pull ropes 6 are fixed to the inner sidewall of the fixing block 2, and the two sets of elastic pull ropes 6 are respectively fixed to the sidewalls of the first baffle 51 and the second baffle 52; sealing blocks 61 are respectively fixed to the sidewalls of the first baffle 51 and the second baffle 52; when the first baffle 51 and the second baffle 52 rely on the magnetic attraction of the first magnetic ball 53 and the second magnetic ball 54 to block the internal channel of the fixing block 2, in order to enhance the tightness of the seal, the two sets of elastic pull ropes 6 are respectively fixed to the sidewalls of the first baffle 51 and the second baffle 52 and pulled, and the two sets of sealing blocks 61 seal the gaps at the first torsion spring and the second torsion spring, further improving the tightness of the seal on the internal channel of the fixing block 2.

[0036] like Figures 1 to 5 As shown, a sliding rod 7 is slidably connected to the inner wall of the steel support frame 1 and is located inside the water storage chamber; a load-bearing block 72 is fixedly connected to the top of the sliding rod 7; a foam float 71 is fixedly connected to the bottom of the load-bearing block 72; a sealing gasket 73 is fixedly connected to the inner wall of the steel support frame 1 and is located at the side wall of the sliding rod 7; when the trapped personnel are stuck in the tunnel for too long, in order to facilitate the trapped personnel to observe the water level in the water storage chamber, the sliding rod 7 is slid on the inner wall of the steel support frame 1, and the sealing gasket 73 is used to seal the sliding part of the sliding rod 7 to reduce water waste. The foam float 71 floats on the water surface. When the water level drops, the load-bearing block 72 presses down on the sliding rod 7 due to its own weight, and the sliding rod 7 slides down accordingly, which makes it easy for the trapped personnel to observe the water level change. At the same time, when storing water, the staff can also observe the sliding state of the sliding rod 7 and add water to the water storage chamber as appropriate.

[0037] A pressure plate 8 is slidably connected to the inner wall of the steel support frame 1; a second elastic element 81 is sleeved on the side wall of the pressure plate 8 and is located inside the water storage chamber; an alarm switch 82 is installed inside the steel support frame 1 and is located below the pressure plate 8; an alarm 83 is fixedly connected to the side wall of the steel support frame 1, and the alarm 83 is connected to the alarm switch 82 through a signal line; when the water in the water storage chamber is low, the weight block 72 presses down accordingly. When the weight block 72 presses the foam float 71 against the pressure plate 8, it means that the water level is low and the people in distress should try to solve the problem. The second elastic element 81 is squeezed and contracted under force until the bottom of the pressure plate 8 presses on the alarm switch 82. The alarm switch 82 transmits a signal to the alarm 83 through the signal line. The alarm 83 sounds an alarm and flashes, which serves to warn the people in distress.

[0038] A horizontal plate 9 is fixedly connected to the side wall of the steel support frame 1; two sets of support plates 91 are fixedly connected to the top of the horizontal plate 9, and the support plates 91 are fixedly connected to the side wall of the steel support frame 1; when a person in distress takes refuge under the steel support frame 1, the horizontal plate 9 is used as a support, and the two sets of support plates 91 support the side wall of the steel support frame 1, further enhancing the structural strength of the steel support frame 1. At the same time, the horizontal plate 9 is fixed to the lower position of the mask 13, which can provide a place for the person in distress to sit or lie down, which can relieve the person in distress's emotions, save energy, and facilitate self-rescue.

[0039] Example 2

[0040] like Figure 6 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: a fixed frame 92 is fixedly connected to the inner side wall of the steel support frame 1; two sets of drawers 93 are slidably connected to the inner side wall of the fixed frame 92; handles 94 are fixedly connected to the side wall of the drawers 93; when working in the tunnel, workers can hold the two sets of handles 94 to open the two sets of drawers 93 respectively, put some self-rescue tools and some easily stored food into the drawers 93, and push the drawers 93 into the fixed frame 92 for storage. When in danger, the tools and food can be used for self-rescue by the people in distress, increasing the probability of self-rescue by the people in distress.

[0041] Working principle: During tunnel operations, compressed air self-rescue devices need to be installed inside the tunnel to ensure safe escape and self-rescue in the event of a tunnel collapse. However, currently installed compressed air self-rescue devices in tunnels are usually used to provide fresh air. If the rescue time is too long, the trapped personnel are prone to dehydration in the confined environment, leading to physical discomfort and even threatening their lives. Therefore, in the event of a tunnel collapse during tunnel operations, the trapped personnel should quickly seek refuge under the steel support frame 1. Usually, the infrastructure structure near the steel support frame 1 is of high strength. The steel support frame 1 is used to shield the collapsed rocks, providing as much space as possible for the trapped personnel. The water storage chamber inside the steel support frame 1 is filled with clean water and sealed with connecting components. The water pipe 11 is connected to an external ventilation pipe. When valve 12 is turned to open, unclean compressed air is converted into clean breathing air. Wearing mask 13 over the mouth and nose allows for compressed air self-rescue. When thirsty, the connecting component can be used to draw water from the water storage chamber inside the steel support frame 1 to relieve thirst and discomfort while awaiting rescue. The compressed air self-rescue system is installed on the compressed air pipeline inside the tunnel. The installation location should be a spacious, well-supported sidewalk free of debris, facilitating self-rescue by on-site personnel. When a person in distress is taking refuge under the steel support frame 1, water inside the steel support frame 1 will flow from the channel inside the fixed block 2 into the guide pipe 22. Pulling the guide pipe 22 downwards causes the winding rod 23 to rotate, stressing the first torsion spring and pulling off the sealing plug 24. When the water is put into the mouth, the clear water inside the water storage chamber of the steel support frame 1 can be drunk to quench thirst. When drinking stops, the sealing plug 24 is inserted into the guide tube 22. After the guide tube 22 is released, the first torsion spring drives the winding rod 23 to reset and rewind the guide tube 22, which serves to store the guide tube 22. When a large amount of clear water is stored inside the steel support frame 1, in order to reduce the overflow of water inside the steel support frame 1, the blocking plate 3 is used to block the channel inside the fixing block 2, which serves to block the water storage chamber inside the steel support frame 1. When drinking is needed, the handle 31 is held to pull the blocking plate 3 outward. The groove of the blocking plate 3 corresponds to the channel of the fixing block 2, and the water inside the steel support frame 1 flows down, which facilitates the drinking effect. When people in distress are trying to save themselves in a confined space, they may forget to seal the channel of the fixed block 2 after drinking water due to panic, resulting in water overflow and waste. Therefore, the first elastic element 4 is sleeved on the handle 31, and one end of the first elastic element 4 is fixed to the side wall of the fixed block 2. When the handle 31 is pulled, the first elastic element 4 is stretched and subjected to force. The person in distress holds the side wall of the limiting block 41 and pulls down the guide tube 22 to drink water. After drinking, the sealing plug 24 is inserted into the guide tube 22. The guide tube 22 is released and retracted. The limiting block 41 plays a role in limiting the guide tube 22. After the handle 31 is released, the first elastic element 4 pulls the handle 31 to retract, which drives the blocking plate 3 to slide and block the channel of the fixed block 2, thus automatically resetting and sealing the water storage chamber.When water overflows from the storage chamber, to improve the sealing effect on the water source, torsion springs 1 and 2 respectively drive baffle 51 and baffle 52 to assemble, which, together with magnetic balls 53 and 54, enhance the sealing effect on the water in the storage chamber. When the magnetic block 5 inside the blocking plate 3 approaches, the magnetic block 5 simultaneously attracts magnetic balls 53 and 54. Baffles 51 and 52 open the channel as torsion springs 1 and 2 rotate, facilitating the access to drinking water. When baffles 51 and 52 rely on magnetic balls 53 and 54 to block the internal channel of the fixing block 2, to enhance the sealing effect... To ensure tightness of the seal, two sets of elastic ropes 6 are fixed to the side walls of the first baffle 51 and the second baffle 52 respectively, and pulled together with two sets of sealing blocks 61 to seal the gaps at the first and second torsion springs, further improving the tightness of the seal on the internal passage of the fixed block 2. When the trapped personnel are trapped in the tunnel for too long, in order to facilitate the observation of the water level in the water storage chamber, the sliding rod 7 slides on the inner wall of the steel support frame 1, and the sliding point of the sliding rod 7 is sealed with a sealing gasket 73 to reduce water waste. The foam float 71 floats on the water surface. When the water level drops, the load block 72 presses down on the sliding rod 7 due to its own weight, and the sliding rod 7 slides downward accordingly. This allows personnel in distress to observe changes in water level. Simultaneously, during water storage, staff can observe the sliding state of the slide bar 7 and add water to the storage chamber as needed. When the water level in the storage chamber is low, the weight block 72 presses down. When the weight block 72 pushes the foam float 71 against the pressure plate 8, it indicates a low water level, and personnel in distress should try to resolve the issue. The second elastic element 81 is compressed and contracts under force until the bottom of the pressure plate 8 presses against the alarm switch 82. The alarm switch 82 transmits a signal to the alarm device 83 via a signal line, causing the alarm device 83 to sound an alarm and flash, serving as a warning to personnel in distress. When personnel in distress take refuge under the steel support frame 1... When in distress, the horizontal plate 9 serves as a support, working in conjunction with two sets of support plates 91 to support the side walls of the steel support frame 1, further enhancing the structural strength of the steel support frame 1. Simultaneously, the horizontal plate 9, fixed below the mask 13, provides a place for those in distress to sit or lie down, easing their anxiety and conserving energy for self-rescue. During tunnel operations, workers can use two sets of handles 94 to open two sets of drawers 93, placing self-rescue tools and easily stored food inside. The drawers 93 are then pushed into the fixed frame 92 for storage. In case of distress, the tools and food are readily available for self-rescue, increasing the probability of survival.

[0042] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0043] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A compressed air self-rescue device for tunnel operations, characterized in that: The system includes a steel support frame (1); a water pipe (11) is fixedly connected to the inside of the side wall of the steel support frame (1); multiple sets of valves (12) are fixedly connected to the side wall of the water pipe (11); a mask (13) is fixedly connected to the side wall of the valve (12) through an air guide pipe; a water storage chamber is opened inside the steel support frame (1) and is located above the water pipe (11); a connecting component is provided on the side wall of the steel support frame (1), which is used for drinking water for the distressed personnel; The side wall of the steel support frame (1) is fixedly connected to a fixing block (2); a storage box (21) is fixedly connected to the bottom end of the fixing block (2); a guide tube (22) is fixedly connected inside the fixing block (2); a winding rod (23) is rotatably connected to the inner side wall of the storage box (21) through a torsion spring, and the guide tube (22) is wound around the winding rod (23); a sealing plug (24) is inserted into the bottom end of the guide tube (22). The inner sidewall of the fixing block (2) is slidably connected to a blocking plate (3); the sidewall of the blocking plate (3) is provided with a through groove; the sidewall of the blocking plate (3) is fixedly connected to a handle (31). A magnetic block (5) is fixed to the inner wall of the blocking plate (3); a guide hole is opened inside the magnetic block (5); a first baffle (51) is rotatably connected to the inner wall of the fixing block (2) through a second torsion spring; a second baffle (52) is rotatably connected to the inner wall of the fixing block (2) through a third torsion spring; a first magnetic ball (53) is fixed inside the first baffle (51); a second magnetic ball (54) is fixed inside the second baffle (52); the first magnetic ball (53) and the second magnetic ball (54) can attract each other when they are close to each other; the magnetic block (5) can attract each other when it is close to the first magnetic ball (53) and the second magnetic ball (54).

2. The tunnel operation compressed air self-rescue device according to claim 1, characterized in that: The handle (31) has a first elastic element (4) sleeved on its side wall; the guide tube (22) has a limit block (41) fixedly connected to its side wall and located at the lower end of the guide tube (22).

3. The tunnel operation compressed air self-rescue device according to claim 1, characterized in that: The inner sidewall of the fixing block (2) is fixed with two sets of elastic pull ropes (6), and the two sets of elastic pull ropes (6) are respectively fixed to the sidewalls of the first baffle (51) and the second baffle (52); the sidewalls of the first baffle (51) and the second baffle (52) are respectively fixed with sealing blocks (61).

4. The tunnel operation compressed air self-rescue device according to claim 3, characterized in that: The inner wall of the steel support frame (1) is slidably connected to a slide rod (7) and located inside the water storage chamber; a load block (72) is fixedly connected to the top of the slide rod (7); a foam float (71) is fixedly connected to the bottom of the load block (72); a sealing gasket (73) is fixedly connected to the inner wall of the steel support frame (1) and located at the side wall of the slide rod (7).

5. A tunnel operation compressed air self-rescue device according to claim 4, characterized in that: The inner side wall of the steel support frame (1) is slidably connected to a pressure plate (8); the side wall of the pressure plate (8) is fitted with a second elastic element (81) and is located inside the water storage chamber; an alarm switch (82) is installed inside the steel support frame (1) and is located below the pressure plate (8); an alarm (83) is fixedly connected to the side wall of the steel support frame (1), and the alarm (83) is connected to the alarm switch (82) through a signal line.

6. A tunnel operation compressed air self-rescue device according to claim 5, characterized in that: The steel support frame (1) has a horizontal plate (9) fixedly connected to its side wall; the top of the horizontal plate (9) has two sets of support plates (91) fixedly connected to it, and the support plates (91) are fixedly connected to the side wall of the steel support frame (1).

7. A tunnel operation compressed air self-rescue device according to claim 6, characterized in that: The inner wall of the steel support frame (1) is fixedly connected to a fixing frame (92); the inner wall of the fixing frame (92) is slidably connected to two sets of drawers (93); the side wall of the drawers (93) is fixedly connected to a handle (94).

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