CN200940726Y - Full automatic safety gas valve - Google Patents

Abstract

The utility model relates to an automatic security type gas valve, comprising a valve body, a valve core, a valve stem and a handle. Both ends of the valve body is respectively provided with a gas inlet and a gas outlet, the handle drives the spherical core to rotate by the valve stem to control the on-off of gas, a security reset mechanism is arranged between the spherical core and the gas outlet, which comprises a sealing cap, a pressing spring of the sealing cap, a pull rod, a pull button and a resisting spring of the pull button, a pressure balance hole is established on the bulkhead between the security reset mechanism and the gas outlet, the pull rod passes through the sealing cap and the pressure balance hole and is positioned by the snap block, the pressing spring of the sealing cap is pressed between the bulkhead and the sealing cap, one end of the pull button is connected with the pull rod and the connection part is provided with a reset area for the pull button, the resisting spring of the pull button is provided between the pull button and the bulkhead, the other end of the pull button is combined with the arc groove located on the spherical core. The utility model overcomes defects of the existing technological structure of complex structure, poor security performance and inconvenient application, has the advantages of simple and compact structure, safe and convenient operation and high reliability.

Description

A kind of full-automatic safety type gas valve

Affiliated technical field

The utility model relates to a kind of full-automatic safety type gas valve.

Background technique

Along with the growing tension of world energy supplies, the continuous enhancing of people's environmental consciousness, now each state all advocates energetically and uses that this amount of containing of combustion gas is enriched, had a high potential, the energy of clean environment firendly, but because various security incidents such as the gas leakage that the use combustion gas causes, poisoning, fire, blast are also increasing.Gas valve is that combustion gas is requisite when popularize using, at present nearly all gas valve particularly the small gas valve all only have ventilation, die, the function of control gaseous flow size.Although also occurred the gas valve that sub-fraction has certain protection function in the market, but these valves also exist structural design too complicated, if any introducing solenoid valve, the gas leakage inductor, need the additional power supply supply, will not lose all protection functions in case had electricity, what have designs protection function spare in valve metal control ball inside, because the Metal Ball inner space is original just very little, protection function spare is designed here the face performance of not only ensuring public security to be subjected to certain influence, but also the air-tightness can influence valve and cut off source of the gas the time, so there is the product structure complexity in prior art, security personnel's performance is not high, use inconvenient, many drawbacks such as reliability is low.

Summary of the invention

For overcome general gas valve mechanism complexity in the prior art, security personnel's performance not high, use the problem inconvenient, that reliability is low, the utility model provides a kind of full-automatic safety type gas valve, this full-automatic safety type gas valve simple and compact for structure, need not external force and power supply supply, safe and convenient to use, good reliability.

The technological scheme that its technical problem that solves the utility model adopts is: comprise valve body, the ball core, valve rod and handle, two ends of valve body is respectively equipped with suction port and air outlet, handle drives ball core Spin Control combustion gas break-make by valve rod, security personnel's resetting-mechanism is set between ball core and air outlet, security personnel's resetting-mechanism comprises sealed cap, the sealed cap stage clip, pull bar, draw button and draw button top spring, offer pressure compensation opening in the next door between security personnel's resetting-mechanism and air outlet, pull bar passes sealed cap and pressure compensation opening and is located by fixture block at the opposite side of pressure compensation opening, between sealed cap stage clip roof pressure next door and the sealed cap, draw an end of button to link to each other with pull bar, joint is provided with to draw detains the district that resets, draw to be provided with between button and the next door and draw button top spring, draw the other end of button to match with arc groove on the ball core.

The utility model is by above-mentioned specific design, can significantly reduce that the gas transmission leather hose comes off because of taking place when using combustion gas, aging cracking, the security incident of breaking etc. and to cause, and do not need any external force and power supply supply, in case the gas leakage accident takes place, full-automatic safety type gas valve will cut off source of the gas rapidly automatically, has advantage simple and compact for structure, safe and convenient to use, good reliability.

Description of drawings

Below in conjunction with drawings and Examples detailed content of the present utility model is described.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the A-A sectional view of ball core among Fig. 1.

As shown in the figure, the utility model comprises valve body 1, ball core 2, valve rod 3 and handle 4, the two ends of valve body 1 are respectively equipped with suction port 5 and air outlet 6, handle 4 drives ball core 2 Spin Control combustion gas break-makes by valve rod 3, between ball core 2 and air outlet 6, security personnel's resetting-mechanism is set, security personnel's resetting-mechanism comprises sealed cap 7, sealed cap stage clip 8, pull bar 9, draw button 10 and draw button top spring 11, offer pressure compensation opening 13 in the next door 12 between security personnel's resetting-mechanism and air outlet 6, pull bar 9 pass sealed cap 7 and pressure compensation opening 13 and at the opposite side of pressure compensation opening 13 by fixture block 14 location, between sealed cap stage clip 8 roof pressure next doors 12 and the sealed cap 7, draw button 10 end and pull bar 9 portions of being connected to be provided with to draw button to reset and distinguish 15, draw to be provided with between button 10 and the next door 12 and draw button top spring 11, draw the other end of button 10 to match with arc groove 16 on the ball core 2.Under user mode, earlier suction port 5 and air outlet 6 to be received respectively on the combustion gas pneumatic tube, handle with sleeve 4 just can be realized ventilation or die, and can also pass through the different free rotation angles ground adjustments of gas flow size of handle 4.Position shown in Figure 1, the gas flow by this full-automatic safety type gas valve is a maximum value; With handle 4 clockwise or be rotated counterclockwise 90 degree, this moment, the gas flow by this full-automatic security personnel's gas valve was a minimum value, just zero, and this moment, valve was to be in the state that cuts off source of the gas of closing.Be under the situation of ventilation at this full-automatic safety type gas valve, it is on the alert that the sealed cap 7 that traverse can be in security personnel automatically.Combustion gas meeting this moment is by suction port 5, through ball core 2, passes pressure compensation opening 13 then along sealed cap 7 edges to the air outlet 6.Any part generation gas leakage accident when pipeline that is connected full-automatic safety type gas valve air outlet 6 sides and the right or air hose, the moment air pressure of oral area of will causing giving vent to anger diminishes, and what does not almost take place and changes in the air pressure in this security department moment, thereby causes forming in sealed cap 7 left and right sides draught head.Under the driving of this draught head, the resistance that sealed cap 7 overcomes sealed cap stage clip 8 is pressed towards right-hand rapidly and is close on the sealing surface of pressure compensation opening 13 on the right and cuts off source of the gas, thereby reaches the function of automatic protecting.After having got rid of the gas leakage security incident, if will recover normal air feed, only need clockwise or be rotated counterclockwise 90 degree (valve will be in and cut off the source of the gas closing state like this) handle 4, ball core 2 also can be along with rotating together at this moment, in arc groove 16 on the ball core 2 is slipped in the left part of the drop-down button 10 of elastic force effect that draws button top spring 11, and pulling pull bar 9 and sealed cap 7 reset, combustion gas reenters the oral area of giving vent to anger, the draught head of pressure compensation opening 13 both sides is disappeared, and the position of sealed cap 7 is maintained under the pressure effect of sealed cap stage clip 8.When handle 4 when cutting off source of the gas closed condition position to the aeration status rotated position, draw the left end of button 10 can be ejected arc groove 16, at this moment, distinguish 15 setting owing to draw button to reset, pull bar 9 does not move, and sealed cap 7 is in the automatic protecting state that stands by automatically once more.

Claims (1)

1, a kind of full-automatic safety type gas valve, comprise valve body, the ball core, valve rod and handle, two ends of valve body is respectively equipped with suction port and air outlet, handle drives ball core Spin Control combustion gas break-make by valve rod, it is characterized in that between ball core (2) and air outlet (6), security personnel's resetting-mechanism being set, security personnel's resetting-mechanism comprises sealed cap (7), sealed cap stage clip (8), pull bar (9), draw button (10) and draw button top spring (11), offer pressure compensation opening (13) in the next door (12) between security personnel's resetting-mechanism and air outlet (6), pull bar (9) passes sealed cap (7) and pressure compensation opening (13) and is located by fixture block (14) at the opposite side of pressure compensation opening (13), between sealed cap stage clip (8) roof pressure next door (12) and the sealed cap (7), draw an end of button (10) to link to each other with pull bar (9), joint is provided with to draw detains the district (15) that resets, draw to be provided with between button (10) and next door (12) and draw button top spring (11), draw the other end of button (10) to match with the last arc groove (16) of ball core (2).