Mining isolated compressed oxygen self-rescuer

Abstract

A mining isolated compressed oxygen self-rescuer comprises a self-rescuer body, an oxygen bottle and a breathing assembly. According to the isolated compressed oxygen self-rescuer for the mine, the fixed sealing plate and the rotary sealing plate are arranged on the cleaning tank shell, the fixed sealing plate and the rotary sealing plate are both provided with air vents, the air guide pipe is matched with the rotary sealing plate, and the rotary sealing plate is driven to rotate by rotating the air guide pipe; a rotary sealing plate ventilation opening in the rotary sealing plate and a fixed sealing plate ventilation opening in the fixed sealing plate are controlled to be staggered and overlapped, so that the flow of the cleaning tank is limited by controlling the shell and the air bag to be isolated and communicated, and the cleaning tank is controlled to be opened and closed in good time; and the carbon dioxide absorbent is prevented from overflowing from the cleaning tank to block the quantitative hole and the pressure reducing valve.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of mine emergency rescue equipment, especially a mine isolated compressed oxygen self-rescuer. BACKGROUND

[0002] The isolated compressed oxygen self-rescuer is reusable escape equipment with high-pressure compressed oxygen as the oxygen source, mainly used in the event of toxic and harmful gas outburst and oxygen deficiency asphyxia disaster in coal mines or ordinary atmospheric pressure working environment, and has the characteristics of light weight, small size, comfortable breathing and convenient carrying; the existing compressed oxygen self-rescuer inhales oxygen from the air bag through the breathing valve and mouthpiece into the human body, and exhales gas through the breathing valve and exhalation tube into the cleaning tank, the carbon dioxide exhaled by the human body is absorbed by the absorbent in the cleaning tank, and the remaining oxygen enters the air bag, thus completing the breathing cycle of the human body, and the breathing of the human body is completely isolated from the outside air;

[0003] However, the outlet of the existing self-rescuer cleaning tank is open and close to the pressure reducing valve, and the carbon dioxide absorbent in the cleaning tank will seep out of the outlet during use, affecting the flow of the quantitative hole and causing the quantitative hole to be blocked; after the existing self-rescuer is used for 2-3 years, the carbon dioxide absorbent in the cleaning tank will seep out of the gas guide pipe and adhere to the pressure reducing valve, and will enter the inside of the pressure reducing valve through the always open manual supply flow hole, affecting the tightness of the manual flow hole, causing oxygen to flow out through the not tightly closed manual supply quantitative hole when the oxygen cylinder valve is opened, causing waste of oxygen, and even causing the oxygen supply provided by the oxygen cylinder to be insufficient, and the protection time of the whole self-rescuer to be insufficient; therefore, a new type of mine isolated compressed oxygen self-rescuer is needed to solve the above problems. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a mine isolated compressed oxygen self-rescuer, which is provided with a fixed sealing plate and a rotating sealing plate on the cleaning tank shell, the fixed sealing plate and the rotating sealing plate are both provided with air vents, the gas guide pipe cooperates with the rotating sealing plate, the rotating gas guide pipe drives the rotating sealing plate to rotate, controls the rotating sealing plate air vent on the rotating sealing plate to be out of position and coincide with the fixed sealing plate air vent on the fixed sealing plate, thereby limiting the flow of the cleaning tank by controlling the isolation and conduction of the shell and the air bag, achieving the purpose of timely controlling the opening and closing of the cleaning tank, avoiding the overflow of the carbon dioxide absorbent from the cleaning tank and blocking the quantitative hole and the pressure reducing valve.

[0005] The utility model solves technical scheme that it adopts for technical problem, is a kind of mining isolated compressed oxygen self-rescuer, including self-rescuer body, oxygen cylinder and breathing component, wherein, the oxygen cylinder is provided with pressure reducer, pressure gauge and switch, the self-rescuer body includes oxygen cylinder placing cavity and purifier tank, the oxygen cylinder is placed in the oxygen cylinder placing cavity, the breathing component, purifier tank and oxygen cylinder are connected and constitute mining isolated compressed oxygen self-rescuer;

[0006] The purifier tank includes tank body, the tank body is loaded with carbon dioxide absorbent, the tank body includes shell, throat clamp, air duct, butterfly spring, rotary sealing plate, fixed sealing plate and air bag, the shell has outer thread, uniformly distributed air duct positioning hole, the air duct has sealing plate shift pin, air duct positioning pin and inner thread, the outer thread on the shell is matched with the inner thread on the air duct and gradually screwed, the rotary sealing plate has rotary sealing plate shift pin hole and rotary sealing plate air vent, the fixed sealing plate has fixed sealing plate air vent, the butterfly spring, rotary sealing plate are connected with the air duct, and the rotary sealing plate and fixed sealing plate are pressed under the action of the butterfly spring, the sealing plate shift pin on the air duct is positioned with the rotary sealing plate shift pin hole on the rotary sealing plate, and the fixed sealing plate is pasted and fixed with the shell;

[0007] The breathing component includes air bag, breathing tube, breathing valve and mouthpiece, one end of the air bag is connected with the pressure reducer, the other end is connected with the shell through the throat clamp, one end of the breathing tube in the air bag is connected with the air duct through the throat clamp, and the other end is connected with the breathing valve and mouthpiece;

[0008] When using, the rotary air duct, the sealing plate shift pin on the air duct is matched with the rotary sealing plate shift pin hole of the rotary sealing plate, and drives the rotary sealing plate to rotate;When the rotary sealing plate air vent on the rotary sealing plate is misaligned with the fixed sealing plate air vent on the fixed sealing plate, the shell and the air bag are in isolation state, and the air duct positioning pin on the air duct is positioned with the air duct positioning hole on the shell;Continue to rotate the air duct, the sealing plate shift on the air duct is matched with the rotary sealing plate shift pin hole of the rotary sealing plate, and drives the rotary sealing plate to rotate, when the rotary sealing plate air vent on the rotary sealing plate is coincided with the fixed sealing plate air vent on the fixed sealing plate, the shell and the air bag group are in the state of conduction, and the air duct positioning pin on the air duct is positioned with the air duct positioning hole on the shell.

[0009] The utility model discloses a beneficial effect is: the mine insulating type compressed oxygen self rescuer is provided with fixed sealing plate and rotary sealing plate on the clean tank shell, and fixed sealing plate and rotary sealing plate all are provided with air vent, and the cooperation of gas guide pipe and rotary sealing plate, through the rotary gas guide pipe, drive rotary sealing plate rotation, control the rotary sealing plate air vent on rotary sealing plate and the fixed sealing plate air vent on fixed sealing plate dislocation and coincidence, thereby through the control shell and air bag are in isolation and lead to the clean tank flow is limited, reach in time control clean tank opening and close, avoid the beneficial effect that carbon dioxide absorbent is overflowed from clean tank and blocks quantitative hole and pressure reducing valve. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the structure view of the utility model;

[0011] Figure 2 It is the I part enlarged view of the utility model Figure 1 ;

[0012] Figure 3 It is the structure main view of clean tank of the utility model;

[0013] Figure 4 It is the top view of the utility model Figure 3 ;

[0014] Figure 5 It is the structure main view of gas guide pipe of the utility model;

[0015] Figure 6 It is the top view of the utility model Figure 5 ;

[0016] Figure 7 It is the structure main view of rotary sealing plate of the utility model;

[0017] Figure 8 It is the A-A section view of the utility model Figure 7 ;

[0018] Figure 9 It is the structure main view of fixed sealing plate of the utility model;

[0019] Figure 10 It is the B-B section view of the utility model Figure 9 ;

[0020] In the figure: 1, the shell; 1-1, the outer thread; 1-2, the air pipe positioning hole; 2, carbon dioxide absorbent; 3, the throat clamp; 4, the air pipe; 4-1, the sealing plate push pin; 4-2, the air pipe positioning pin; 4-3, the inner thread; 5, the butterfly spring; 6, the rotary sealing plate; 7, the fixed sealing plate; 8, the air bag; 9, the breathing tube; 10, the breathing valve; 11, the mouthpiece; 12, the pressure reducer; 13, the pressure gauge; 14, the switch; 15, the oxygen cylinder. DETAILED DESCRIPTION

[0021] The specific embodiment of the utility model is, refer to Figure 1 A mine isolated compressed oxygen self-rescuer, including self-rescuer body, oxygen cylinder and breathing assembly, wherein, the oxygen cylinder 15 is provided with pressure reducer 12, pressure gauge 13 and switch 14, the self-rescuer body includes oxygen cylinder placing cavity and purifier tank, the oxygen cylinder 15 is placed in the oxygen cylinder placing cavity, the breathing assembly, purifier tank and oxygen cylinder 15 are connected and constitute the mine isolated compressed oxygen self-rescuer,

[0022] Refer to Figures 1-10 The purifier tank includes tank body, the tank body is loaded with carbon dioxide absorbent 2, the tank body includes shell 1, throat clamp 3, air pipe 4, butterfly spring 5, rotary sealing plate 6, fixed sealing plate 7 and air bag 8, the shell 1 has outer thread 1-1, evenly distributed air pipe positioning hole 1-2, the air pipe 4 has sealing plate push pin 4-1, air pipe positioning pin 4-2 and inner thread 4-3, the outer thread 1-1 on the shell 1 is gradually screwed with the inner thread 4-3 on the air pipe 4, the rotary sealing plate 6 has rotary sealing plate push pin hole 6-1, rotary sealing plate air vent 6-2, the fixed sealing plate 7 has fixed sealing plate air vent 7-1, the butterfly spring 5, rotary sealing plate 6 are connected with the air pipe 4, and the rotary sealing plate 6, fixed sealing plate 7 are pressed under the action of butterfly spring 5, the sealing plate push pin 4-1 on the air pipe 4 and the rotary sealing plate push pin hole 6-1 on the rotary sealing plate 6 are mutually positioned, and the fixed sealing plate 7 is pasted and fixed with the shell 1;

[0023] Refer to Figure 1 The breathing assembly includes air bag 8, breathing tube 9, breathing valve 10 and mouthpiece 11, one end of the air bag 8 is connected with pressure reducer 12, and the other end is connected with shell 1 through throat clamp 3, one end of the breathing tube 9 in the air bag 8 is connected with air pipe 4 through throat clamp 3, and the other end is connected with breathing valve 10 and mouthpiece 11;

[0024] Refer to Figures 1-10, in use, rotating the air guide pipe 4, the sealing plate poking pin 4-1 on the air guide pipe 4 matches the rotating sealing plate poking pin hole 6-1 of the rotating sealing plate 6, driving the rotating sealing plate 6 to rotate; when the rotating sealing plate air hole 6-2 on the rotating sealing plate 6 is misaligned with the fixed sealing plate air hole 7-1 on the fixed sealing plate 7, the shell 1 and the air bag 8 are in an isolated state, and the air guide pipe positioning pin 4-2 on the air guide pipe 4 matches the air guide pipe positioning hole 1-2 on the shell 1 for positioning; continue to rotate the air guide pipe 4, the sealing plate poking pin 4-1 on the air guide pipe 4 matches the rotating sealing plate poking pin hole 6-1 of the rotating sealing plate 6, driving the rotating sealing plate 6 to rotate, when the rotating sealing plate air hole 6-2 on the rotating sealing plate 6 coincides with the fixed sealing plate air hole 7-1 on the fixed sealing plate 7, the shell 1 and the air bag group 8 are in a conductive state, and the air guide pipe positioning pin 4-2 on the air guide pipe 4 matches the air guide pipe positioning hole 1-2 on the shell 1 for positioning.

[0025] The quantitative oxygen supply data detection experiment effect of the mine isolation type compressed oxygen self-rescuer:

[0026] Old standard AQ1054-2008: The quantitative oxygen supply of the pressure reducing valve should not be less than 1.2L / min, and the quantitative oxygen supply will decrease to 0.5-1.0L / min after rolling test;

[0027] New standard GB24502-2023: The normal value of the pressure reducing valve should be that when the oxygen cylinder pressure is 20Mpa-3Mpa, the quantitative oxygen supply should not be less than 2.1L / min (equivalent to the breathing capacity of a person in motion) at 35L / min, and the quantitative oxygen supply should not be less than 0.5L / min (equivalent to the breathing capacity of a person sitting still) at 10L / min;

[0028] After the self-rescuer is subjected to rolling test (a square wooden box with an inner edge of 300mm made of 18mm thick wood is continuously rolled at a speed of 60±2r / min for 10min with the diagonal as the axis) or is used for more than two years, when the oxygen cylinder pressure is 20Mpa-3Mpa, the quantitative oxygen supply will decrease to 1.0-1.8L / min at 35L / min;

[0029] Quantitative oxygen supply data detection comparison table:

[0030]

[0031] Conclusion:

[0032] The experimental results show that the patent can effectively prevent the drug powder from entering the air bag and affecting the quantitative oxygen supply of the pressure reducer, thereby ensuring the quantitative oxygen supply of the original designed compressed oxygen self-rescuer. The quantitative oxygen supply is the guarantee of the necessary oxygen supply for personnel wearing self-rescuers in a toxic gas environment.

Claims

1. A mine-use isolated compressed oxygen self-rescue device, comprising a self-rescue device body, an oxygen cylinder, and a breathing assembly, characterized in that: The oxygen cylinder is provided with a pressure reducer, a pressure gauge and a switch, the self-rescuer body comprises an oxygen cylinder placing cavity and a purifier tank, the oxygen cylinder is placed in the oxygen cylinder placing cavity, the breathing assembly, the purifier tank and the oxygen cylinder are connected to form a mine isolated compressed oxygen self-rescuer.

2. The mine isolation type compressed oxygen self-rescuer according to claim 1, characterized in that: The purifier tank comprises a tank body, the tank body is provided with a carbon dioxide absorbent, the tank body comprises a shell, a throat clamp, a gas guide pipe, a butterfly spring, a rotating sealing plate, a fixed sealing plate and an air bag, the shell is provided with external fine thread, uniformly distributed gas guide pipe positioning holes, the gas guide pipe is provided with sealing plate shifting pins, gas guide pipe positioning pins and internal fine thread, the external fine thread of the shell is matched with the internal fine thread of the gas guide pipe and is gradually screwed, the rotating sealing plate is provided with rotating sealing plate shifting pin holes and rotating sealing plate air vents, the fixed sealing plate is provided with fixed sealing plate air vents, the butterfly spring, the rotating sealing plate and the gas guide pipe are connected, the rotating sealing plate and the fixed sealing plate are pressed under the action of the butterfly spring, the sealing plate shifting pins of the gas guide pipe are matched with the rotating sealing plate shifting pin holes of the rotating sealing plate, and the fixed sealing plate is fixedly connected with the shell.

3. The mine isolation type compressed oxygen self-rescuer according to claim 2, characterized in that: The breathing assembly comprises the air bag, a breathing pipe, a breathing valve and a mouthpiece, one end of the air bag is connected with the pressure reducer, the other end is connected with the shell through the throat clamp, one end of the breathing pipe in the air bag is connected with the gas guide pipe through the throat clamp, and the other end is connected with the breathing valve and the mouthpiece.

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