CN203303549U

CN203303549U - Bottle valve with pilot valve

Info

Publication number: CN203303549U
Application number: CN2013203812543U
Authority: CN
Inventors: 翁国栋; 夏忠星; 石瑞君
Original assignee: NINGBO SUNAN VALVE MANUFACTURE CO Ltd
Current assignee: NINGBO SUNAN VALVE MANUFACTURE CO Ltd
Priority date: 2013-06-28
Filing date: 2013-06-28
Publication date: 2013-11-27
Anticipated expiration: 2023-06-28

Abstract

The utility model discloses a bottle valve with a pilot valve. The bottle valve comprises the pilot valve (1), a pressing cap (4), a valve body (9), a piston component (8) and an inflating joint component (18), wherein an axial through hole (17) is formed in the bottom of a mounting hole which is formed in the pressing cap (4) and used for mounting the pilot valve (1); one end of the pressing cap (4), facing the piston component (8), is connected with an air valve core component; one end of an air valve core (16) in the air valve core component is positioned in the through hole (17); a pressing rod (2) in the pilot valve (1) is positioned above the air valve core (16); a radial releasing channel (3) communicated with the through hole (17) is formed in the pressing cap (4). According to the structure, each time air in an air bottle is used up and fire extinguishing air is filled into the air bottle again, the pilot valve component and the pressing cap do not need to be dismounted and a releasing membrane does not need to be replaced as well, so that the time and the labor are saved and the cost is reduced.

Description

Bottle valve with pilot valve

Technical field

The utility model relates to the technical field of valve, is specifically a kind of bottle valve with pilot valve for fire-fighting equipment.

Background technology

The bottle valve with pilot valve for fire-fighting equipment of prior art, as depicted in figs. 1 and 2, it generally includes valve body 09, pressure cap 05, piston component 08, pilot valve assembly 01, security component 011 and gas-charging connection assembly 012; In valve body 09, have the air inlet 010 and the gas outlet 07 that are connected, piston component 08 is slidably fitted in valve body 09 and forms valve between air inlet 010 and gas outlet 07, security component 011 and gas-charging connection assembly 012 are connected on the sidewall of valve body 09, pilot valve assembly 01 is connected on pressure cap 05, and pressure cap 05 is connected to the upper end of valve body 09; In pilot valve assembly 01, be connected with top cutter 02, by hexagon socket head cap screw 04, be connected with the diaphragm 03 of releasing in pressure cap 05, the point of a knife of top cutter 02 is positioned at the top of the diaphragm 03 of releasing, and has air storage chamber 06 between pressure cap 05 and piston component 08.

The operation principle of above this bottle valve with pilot valve is: in gas cylinder, be filled with gas by gas-charging connection assembly 012, gas enters air inlet 010 and is stored in gas cylinder by the gas passage in valve body 09, simultaneously, gas enters air storage chamber 06 from the gas passage in piston component 08, remain that the gas pressure in air storage chamber 06 is consistent with the pressure in gas cylinder, now valve is closed; When breaking out of fire, after pilot valve valve module 01 is received the order of system, by top cutter 02 to pressing down, top cutter 02 punctures the diaphragm 03 of releasing, gas in air storage chamber 06 is just released from the leakage path on pressure cap 05, and now the gas pressure in air storage chamber 6 descends, and forces piston component 08 upwards to move, open valve, now fire-suppressant gas just can be from ejection the gas outlet 07 on valve body 09.

But the bottle valve of above-mentioned this structure exists following shortcoming to be:

1) because gas cylinder is reusable, after using gas cylinder, to again in gas cylinder, be filled with fire-suppressant gas, must change the damaged diaphragm of releasing, this process need: remove pressure cap and pilot valve assembly, emit hexagon socket head cap screw on pressure cap, change the diaphragm of releasing, install successively again hexagon socket head cap screw, pressure cap and pilot valve assembly, therefore, this process wastes time and energy very much, greatly increases cost;

2) in the process of removing and installing, all need to use specific purpose tool, therefore, can greatly lower efficiency;

3) in addition, the diaphragm of releasing is normally made by metallic object, and its sealing is poor, and leakage point is more, can cause a small amount of gas leak phenomenon, thereby affects the normal use of gas cylinder.

The utility model content

Technical problem to be solved in the utility model is, provide a kind of need not the dismounting pressure cap and the pilot valve assembly just can guarantee reusing of gas cylinder, thereby the time saving and energy saving bottle valve with pilot valve.

For solving the problems of the technologies described above, the bottle valve with pilot valve that the utility model provides, comprise pilot valve, pressure cap, valve body, piston component and gas-charging connection assembly, in described valve body, have the air inlet and the gas outlet that are connected, piston component is slidably fitted in valve body and forms valve between air inlet and gas outlet, pilot valve is connected on pressure cap, pressure cap is connected to the valve body upper end, the gas-charging connection assembly is connected on the sidewall of valve body, in valve body between piston component and pressure cap, has the first air storage chamber, the installing hole bottom surface that pilot valve is installed on described pressure cap has axial through hole, pressure cap is connected with the valve inside assembly towards an end of piston component, one end of the valve inside in the valve inside assembly is positioned at through hole, depression bar in pilot valve is positioned at the top of valve inside, on pressure cap, also has the leakage path radially communicated with through hole.

Described valve inside assembly also comprises anchor tip, spring, slide block and sealing ring, and described anchor tip is threaded on pressure cap, and slide block is slidably fitted in anchor tip; One end and the anchor tip of spring push against, and the other end and slide block push against; One end close-fitting of valve inside is on slide block, and the other end is positioned at through hole; Sealing ring is socketed on valve inside and with pressure cap and forms minor valve; Between slide block and anchor tip, form the second air storage chamber, this second air storage chamber communicates with the first air storage chamber by the gas passage on anchor tip.

The diameter dimension of the depression bar in described pilot valve and the diameter dimension that is arranged in the valve inside of through hole all are less than the diameter dimension of through hole.

After adopting above structure, the utility model compared with prior art, has the following advantages:

1) owing to having cancelled the structure of utilizing the lancination broken diaphragm of releasing in top to discharge gas, and use the depression bar that utilizes pilot valve instead, press down the structure that valve inside is opened valve release fire-suppressant gas, therefore, when use at every turn in gas cylinder gas and again when being filled with fire-suppressant gas in gas cylinder, needn't remove pilot valve assembly and pressure cap, more needn't change the diaphragm of releasing, save time and laborsaving, also reduce costs;

2) simultaneously, needn't remove pilot valve and pressure cap, greatly enhance productivity;

3) in addition, cancelled the diaphragm of releasing that metallic object is made, formed minor valve and use instead between flexible sealing ring and pressure cap, therefore, good airproof performance, can reduce the leakage of gas, thereby guarantee the normal use of gas cylinder.

The accompanying drawing explanation

Fig. 1 is with the structural representation of the bottle valve of pilot valve in prior art.

Fig. 2 is the left TV structure schematic diagram of Fig. 1.

Fig. 3 is the structural representation of the bottle valve of the utility model band pilot valve.

Fig. 4 is the left TV structure schematic diagram of Fig. 3.

Wherein:

Prior art: 01, pilot valve assembly; 02, top cutter; 03, the diaphragm of releasing; 04, hexagon socket head cap screw; 05, pressure cap; 06, air storage chamber; 07, gas outlet; 08, piston component; 09, valve body; 010, air inlet; 011, security component; 012, gas-charging connection assembly;

The utility model: 1, pilot valve; 2, depression bar; 3, leakage path; 4, pressure cap; 5, the second air storage chamber; 6, the first air storage chamber; 7, gas outlet; 8, piston component; 9, valve body; 10, air inlet; 11, gas passage; 12, anchor tip; 13, spring; 14, slide block; 15, sealing ring; 16, valve inside; 17, through hole.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.

As can be known with the structural representation of the bottle valve with pilot valve by Fig. 3 and the utility model shown in Figure 4, it comprises pilot valve 1, pressure cap 4, valve body 9, piston component 8 and gas-charging connection assembly 18, in described valve body 9, have the air inlet 10 and the gas outlet 7 that are connected, piston component 8 is slidably fitted in valve body 9 and forms valve between air inlet 10 and gas outlet 7, pilot valve 1 is connected on pressure cap 4, pressure cap 4 is connected to valve body 9 upper ends, gas-charging connection assembly 18 is connected on the sidewall of valve body 9, in the valve body 9 between piston component 8 and pressure cap 4, has the first air storage chamber 6.The installing hole bottom surface that pilot valve 1 is installed on described pressure cap 4 has axial through hole 17, pressure cap 4 is connected with the valve inside assembly towards an end of piston component 8, one end of the valve inside 16 in the valve inside assembly is positioned at through hole 17, depression bar 2 in pilot valve 1 is positioned at the top of valve inside 16, on pressure cap 4, also has the leakage path radially 3 communicated with through hole 17.

Described valve inside assembly also comprises anchor tip 12, spring 13, slide block 14 and sealing ring 15, and described anchor tip 12 is threaded on pressure cap 4, and slide block 14 is slidably fitted in anchor tip 12.One end and the anchor tip 12 of spring 13 push against, and the other end and slide block 14 push against.One end close-fitting of valve inside 16 is on slide block 14, and the other end is positioned at through hole 17.Sealing ring 15 is socketed on valve inside 16 and with pressure cap 4 and forms minor valve.Between slide block 14 and anchor tip 12, form the second air storage chamber 5, this second air storage chamber 5 communicates with the first air storage chamber 6 by the gas passage 11 on anchor tip 12.

The diameter dimension of the depression bar 2 in described pilot valve 1 and the diameter dimension that is arranged in the valve inside 16 of through hole 17 all are less than the diameter dimension of through hole 17.

The course of work of the present utility model is as follows:

1) when inflating in gas cylinder, when being filled with gas in gas cylinder, gas enters gas cylinder and stores from air inlet after by the gas passage in valve body 9 by gas-charging connection assembly 18; Simultaneously, gas enters the first air storage chamber 6 and the second air storage chamber 5 by the gas passage in piston component 8, remains that the first air storage chamber 6 is consistent with the gas pressure in gas cylinder with the gas pressure in the second air storage chamber 5, now valve closing; And now, slide block 14 drives valve inside 16 and upwards with pressure cap 4, pushes against under the effect of spring 13, sealing ring 15 is closed with the minor valve that pressure cap 4 forms, and gas can not leak;

2) when breaking out of fire, after pilot valve 1 is received the order of system, force depression bar 2 to be displaced downwardly in through hole 17, until press down valve inside 16, when sealing ring 15 breaks away from pressure cap 4, minor valve is opened, gas in the second air storage chamber 5 is by outside leakage path 3 dump valves, and now the gas pressure in the first air storage chamber 6, lower than the gas pressure in gas cylinder, forces on piston component 8 and moves, valve open, the gas in gas cylinder after air inlet 10 from ejection gas outlet 7;

3) after fire extinguishing finishes, as long as again by gas-charging connection assembly 18, inflate in gas cylinder, the gas pressure in the first air storage chamber 6 and the second air storage chamber 5 adds the reset response power of upper spring 13, forces slide block 14 again to move up, until again minor valve is blocked.

Claims

1. bottle valve with pilot valve, comprise pilot valve (1), pressure cap (4), valve body (9), piston component (8) and gas-charging connection assembly (18), in described valve body (9), have the air inlet (10) and gas outlet (7) that are connected, piston component (8) is slidably fitted in valve body (9) and forms valve between air inlet (10) and gas outlet (7), pilot valve (1) is connected on pressure cap (4), pressure cap (4) is connected to valve body (9) upper end, gas-charging connection assembly (18) is connected on the sidewall of valve body (9), in valve body (9) between piston component (8) and pressure cap (4), has the first air storage chamber (6), it is characterized in that: the upper installing hole bottom surface that pilot valve (1) is installed of described pressure cap (4) has axial through hole (17), pressure cap (4) is connected with the valve inside assembly towards an end of piston component (8), one end of the valve inside in the valve inside assembly (16) is positioned at through hole (17), depression bar (2) in pilot valve (1) is positioned at the top of valve inside (16), on pressure cap (4), also has the leakage path radially (3) communicated with through hole (17).

2. the bottle valve with pilot valve according to claim 1, it is characterized in that: described valve inside assembly also comprises anchor tip (12), spring (13), slide block (14) and sealing ring (15), it is upper that described anchor tip (12) is threaded in pressure cap (4), and slide block (14) is slidably fitted in anchor tip (12); One end of spring (13) and anchor tip (12) push against, and the other end and slide block (14) push against; One end close-fitting of valve inside (16) is upper at slide block (14), and the other end is positioned at through hole (17); Sealing ring (15) is socketed in valve inside (16) above and forms minor valve with pressure cap (4); Between slide block (14) and anchor tip (12), form the second air storage chamber (5), this second air storage chamber (5) communicates with the first air storage chamber (6) by the gas passage (11) on anchor tip (12).

3. the bottle valve with pilot valve according to claim 1 is characterized in that: the diameter dimension of the depression bar (2) in described pilot valve (1) and the diameter dimension that is arranged in the valve inside (16) of through hole (17) all are less than the diameter dimension of through hole (17).