CN201404608Y - Pressure reducing air bottle valve - Google Patents

Abstract

The utility model provides a pressure reducing air bottle valve on a compressed air bottle in a fire rescuing portable respiratory protection device utilizing compressed air. The pressure reducing airbottle is characterized in that: a pressure spring in a valve body is sheathed outside a T-shaped piston body and is coaxially connected with the valve body in a dynamic-matching manner, one end of apulling belt is fixedly connected with one end of a pin, and the pin which is inserted in a hole intersected with the end part of a valve rod in a right-angle manner is connected with the valve rod in a dynamic-matching manner; center lines of an air guide pipe, a whistle nozzle, a safety air release valve, a pressure meter and an air inflation interface are intersected with the axis of the valvebody in a right-angle manner; the air guide pipe, the whistle nozzle, the safety air release valve, the pressure meter and the air inflation interface are respectively connected with the valve body in a fixedly manner, and inner cavities are communicated. The valve which has the functions of pressure reducing and air flow starting/stopping is used in the portable respiratory protection device ofa fire emergency escapee to control the compressed air to flow to a head cover. The advantages of the valve are as follows: a pressure reducing valve and the valve are combined into one body, the structure is compact, the starting is quick and easy, the whistle nozzle can automatically send ringing alarms before the compressed air is approximately run out of, and the valve can protect the life safety of the escapee in safer and more reliable manners.

Description

The decompression bottle valve

Technical field

The utility model relates to a kind of fire rescue with breathing portable device; during specifically a kind of emergency escape from small portable compressed air bottle control compressed air decompression of carrying and the valve that flows to the respiratory protection equipment face shield, promptly a kind of decompression bottle valve that has decompression and the effect of switch gas circuit concurrently.

Background technology

For large-scale transport by sea boats and ships; and oil; chemical industry; clothes; weaving; there are more combustibles in chemical industry such as shoes and hats and light industry enterprise; in case breaking out of fire; be unable to escape from the fire hazard aerosol fog district; a lot of people often are choked to death by the strong smog that fire takes place; burnt to death by direct flame high temperature; generation for fear of tragedy; what is to have produced a kind of emergency escape respiratory protection equipment; promptly use a portable small portable compressed air bottle; charge into the 21MP high pressure air; on the gas cylinder mouth valve is housed; pressure-reducing valve of the outer serial connection of valve; post-decompression air is transferred to by sebific duct in the head-shield of protection head, and the protection head exempts to be burnt and maintenance is had a breath of fresh air, and is not inhaled into smog and suffocates.Use the compressed air reserves of this emergency survival respiratory protection equipment, the carrier was used 10～15 minutes, enough pass through flame smog district, withdraw to the safety area.The weak point of this emergency escape respiratory protection equipment is: the one, and the valve that is contained in the compressed air bottleneck is the rotary air valve of opening of the spiral of general conventional usefulness, need be rotated counterclockwise several circles could all open valve, in flurried, dislike the speed of opening too slow, eager mood needs when being unable to catch up with emergency escape, maloperation is not easily opened, or is only opened the part of valve, the compressed air that flows in the head-shield is obstructed or flows not freely, influence survivor's breathing; The 2nd, the compressed air of opening behind the valve still is the 21MP high pressure, direct respiratory applications, so also will be connected in series a pressure-reducing valve behind the air valve, compressed air is reduced to a nearly atmospheric pressure, could supply respiratory applications, the pressure-reducing valve too fat to move burden of structure that not only seems of serial connection, and increased the chance of gas leakage; The 3rd, the gas cylinder compressed air is the alarm free prompting when using up, and sees the Pressure gauge indicating value reduces and changes and have no time to attend to bow when emergency escape; The 4th, connect gas cylinder and adopt portable quick plugging mode to be connected with the pipe of head-shield, this connected mode is unreliable, and plug easily comes off or leaks gas, and increases the insecurity of lifesaving.

Summary of the invention

In order to overcome above-mentioned all weak points that existing emergency escape respiratory protection equipment exists; the utility model provides a kind of emergency escape decompression bottle valve; make it have the effect of decompression and air circuit breaker concurrently; compressed air warning whistle when using up pipes to remind and reliably is connected with pipe joint, exempts to come off.

The utility model realizes that the technical scheme that its purpose is taked is: a kind of decompression bottle valve, include valve body, T shape piston body, stage clip, valve rod, pin and drawstring are formed, contain also simultaneously that safety valve, the whistle are chewed, wireway, Pressure gauge and inflation interface, it is characterized in that: outside T shape piston body, be connected movingly with valve body is coaxial at body cavity stage clip kink, valve rod is connected with valve body is coaxial movingly in the end of valve body, one pin inserts and is connected movingly with the Kong Zhongyu valve rod of valve rod end right angle intersection, and drawstring is fixedlyed connected with an end of pin; Chew at wireway, the whistle, the center line of safety valve, Pressure gauge and inflation interface respectively with the valve axis right angle intersection, and fixedly connected with valve body, inner chamber communicates.

The utility model has the advantages that stage clip and the coaxial pressure reduction structure brevity and lucidity that body cavity forms, the bulkiness and the generation of avoiding leaking gas of having dwindled independent peripheral hardware pressure-reducing valve of being assembled in movingly of T shape piston body; Small compressed-air bottle, wireway and head-shield are packaging together at ordinary times, be combined in the packaging bag, drawstring pulling pin is thrown off automatically when unpacking when escape is used, can be implemented in air pressure and promote the instantaneous valve rod that backs down automatically down, low-pressure air current can be transported to by mozzle and go in the head-shield to breathe for the escape personnel; Wireway firmly is connected with valve body, does not come off, and realizes the reliability to the head-shield gas transmission; , lead to the gas circuit of chewing at the whistle and open automatically when using up at high pressure air, the whistle is chewed ring warnings, the last compressed air of prompting survivor is about to use up.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the utility model front view.

Fig. 2 is the utility model vertical view.

In Fig. 1 Fig. 2: 1. pin, 2. valve rod, 3. stage clip, 4.T shape piston body, 5. safety valve, 6. valve body, 7. drawstring, 8. wireway, 9. chew at the whistle, 10. inflation interface, 11. Pressure gauges, A is the cavity through the nearly atmospheric pressure of stage clip and T shape piston body decompression back.

The specific embodiment

In Fig. 1 Fig. 2, a kind of decompression bottle valve, including valve body (6), T shape piston body (4), stage clip (3), valve rod (2), pin (1) and drawstring (7) forms, also contain safety valve (5), the whistle simultaneously and chew (9), wireway (8), Pressure gauge (11) and inflation interface (10), it is characterized in that at valve body (6) inner chamber, stage clip (3) kink is connected movingly with valve body (6) is coaxial outside T shape piston body (4); One pin (1) inserts and is connected movingly with the Kong Zhongyu valve rod (2) of valve rod (2) end right angle intersection, one end of drawstring (7) is fixedlyed connected with an end of pin (1), the other end of drawstring (7) is fixedlyed connected with the sealing part of the packaging bag of gas cylinder and head-shield, when lifesaving is used, open the package seal in the pulling drawstring (7), throw off pin (1), valve rod (2) is promptly pressed to by the air pressure in A chamber and is moved to left, automatically open the air flue that leads to wireway (8), air is sent in the head-shield for survivor's respiratory applications, survivor's head is enclosed within the head-shield, and gas cylinder backs on the body; The center line that (9), safety valve (5), Pressure gauge (11) and inflation interface (10) are chewed in wireway (8), the whistle is also fixedlyed connected with valve body (6) respectively with the axis right angle intersection of valve body (6), inner chamber communicates.Wherein: the effect that (9) are chewed at the whistle is to make the gas cylinder compressed air send the whistle warning near using up the forward direction survivor, safety valve (5) is for preventing that the too high decompression of losing heart when dangerous of gas cylinder internal pressure from using, Pressure gauge (11) can omnidistancely show gas cylinder internal pressure size, and inflation interface (10) is the interface that filling compressed air is used in gas cylinder.

Claims (3)

1, a kind of decompression bottle valve, including valve body (6), T shape piston body (4), stage clip (3), valve rod (2), pin (1) and drawstring (7) forms, also contain safety valve (5), the whistle simultaneously and chew (9), wireway (8), Pressure gauge (11) and inflation interface (10), it is characterized in that at valve body (6) inner chamber, cylindrical stage clip (3) kink is connected movingly with valve body (6) is coaxial outside T shape piston body (4), and valve rod (2) is connected movingly with valve body (6) is coaxial in valve body (6) end hole.

2, a kind of decompression bottle valve according to claim 1 is characterized in that an end of drawstring (7) fixedlys connected with an end of pin (1), and pin (1) inserts with the Kong Zhongyu valve rod (2) of the end right angle intersection of valve rod (2) and is connected movingly.

3, decompression bottle valve according to claim 1, it is characterized in that wireway (8), the whistle chew the center line of (9), safety valve (5), Pressure gauge (11) and inflation interface (10) and also fixedly connected with valve body (6) respectively with the axis right angle intersection of valve body (6), inner chamber communicates.

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