CN203322406U - Anti-leakage security type liquid gas pressure regulator - Google Patents

Abstract

The utility model relates to an anti-leakage security type liquid gas pressure regulator which comprises an upper cover gas chamber and a pressure regulation gas chamber which are separated through a membrane. A gas inlet pipe and a gas outlet pipe are arranged at two ends of the pressure regulation gas chamber, an ejection piece is positioned on the membrane and in linkage with the membrane, a pressure regulation spring is arranged between the ejection piece and the upper cover wall, and an ejection piece connection rod positioned below the membrane and connected with the ejection piece is in linkage hinge to a pressure push rod in the pressure regulation gas chamber. The pressure push rod is arranged in a gas sealing plug in the gas inlet pipe in a linkage slide mode, a gas inlet nozzle is fixed at one end in the gas inlet pipe, the gas sealing plug is matched with a gas inlet hole in the gas inlet nozzle, and a security valve seat is fixed at the end on the inner side of the gas outlet pipe and provided with a ventilation hole. One end of a rod portion of a security valve core penetrates through the ventilation hole to be limited by a limitation part, a spring is sleeved at the other end of the rod portion of the ventilation hole, and a reset mechanism is arranged outside the gas outlet pipe and matched with the rod portion of the security valve core penetrating through the ventilation hole. The anti-leakage security type liquid gas pressure regulator does not need any external force and power supply and has the advantages of being simple in structure, high in sensitivity and safe and reliable in usage.

Description

Leakproof safety type lpg regulator

Technical field

The utility model relates to a kind of leakproof safety type lpg regulator.

Background technique

At present, the use popularity rate of China resident family combustion gas is more and more higher, combustion gas brings numerous also dangerous securities of the lives and property of people constantly simultaneously easily to people, now because the various security incidents such as the gas leakage of using combustion gas to cause, poisoning, fire, blast are also increasing.Develop security personnel's product out although also occurred some at present on market for gas pressure regulator, governor safety, but these products all exist the defect can not be ignored: what have has introduced combustion gas gas sensing electronic equipment in structure, its structure is complexity but also impracticable not only, once not have electricity will lose all protection functions; What have only can report to the police and can automatically not cut off source of the gas when the gas leakage accident occurs.Therefore, can say in existing pressure governor product, if the gas leakage once its inner skin lid breaks, gas leakage just can not stop voluntarily, and this has brought serious threat to people's the security of the lives and property.

Summary of the invention

Can not automatically cut off the problem of source of the gas in order to overcome general gas pressure governor in prior art when leaking gas, the utility model provides a kind of leakproof safety type lpg regulator, simple in structure, the gas leakage of this leakproof safety type lpg regulator the time can be cut off source of the gas voluntarily without external force and power supply supply, highly sensitive, safe and reliable.

The utility model solves the technological scheme that its technical problem adopts: comprise upper gas-covering chamber and the pressure chamber separated by diaphragm, the two ends of pressure chamber are provided with suction tude and steam outlet pipe, top flat be positioned on diaphragm and with the diaphragm interlock, be provided with pressure adjusting spring between top flat and upper tegmental wall, diaphragm below and top flat join top flat connecting rod interlock be articulated in the push strut in pressure chamber, the push strut interlock slides and is arranged at the plug of holding one's breath in suction tude, the interior end of suction tude is air inlet nozzle fixedly, the plug of holding one's breath matches with the inlet hole on air inlet nozzle, the fixing security personnel of medial extremity valve seat at steam outlet pipe, security personnel valve seat on vent, security personnel's spool forms "T"-shaped by sealed department and bar section, bar section one end is spacing by bounding means through vent, bar section is at the other end outer casing spring of vent, steam outlet pipe is provided with resetting-mechanism outward, resetting-mechanism matches with the bar section of security personnel's spool through vent.

Resetting-mechanism comprises set casing, reset button, the push rod that resets, Returnning spring and seal ring, it is taper that the push rod that resets becomes a stepped end, the push rod overcoat Returnning spring that resets is arranged in the cavity of set casing and reset button formation, the end difference of push rod of resetting arranges seal ring, and the tapered end of the push rod that resets matches with the bar section through vent.

The utility model, by above-mentioned specific design, can be eliminated the security incident that comes off or break and leak gas and cause because of the external tracheae of gas pressure regulator, governor, and not need any external force and power supply supply, has advantages of simple in structure, highly sensitive, safe and reliable.

The accompanying drawing explanation

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

Accompanying drawing is structural representation of the present utility model.

As shown in the figure, the utility model comprises upper gas-covering chamber 2 and the pressure chamber 3 of being separated by diaphragm 1, the two ends of pressure chamber 3 are provided with suction tude 4 and steam outlet pipe 5, top flat 6 be positioned in diaphragm 1 and with diaphragm 1 interlock, be provided with pressure adjusting spring 8 between top flat 6 and upper tegmental wall 7, diaphragm 1 below and top flat 6 join top flat connecting rod 9 interlocks be articulated in the push strut 10 in pressure chamber 3, push strut 10 interlocks slide and are arranged at the plug 11 of holding one's breath in suction tude 4, the interior end of suction tude 4 is air inlet nozzle 12 fixedly, the plug 11 of holding one's breath matches with the inlet hole 13 on air inlet nozzle 12, the fixing security personnel of medial extremity valve seat 14 at steam outlet pipe 5, security personnel valve seat 14 on vent 15, security personnel's spool 16 forms "T"-shaped by sealed department 17 and bar section 18, bar section 18 1 ends are spacing by bounding means 19 through vent 15, bar section 18 is at the other end outer casing spring 20 of vent 15, the outer resetting-mechanism 21 that is provided with of steam outlet pipe 5, resetting-mechanism 21 matches with the bar section 18 of security personnel's spool 16 through vent 15.Resetting-mechanism 21 comprises set casing 22, reset button 23, the push rod 24 that resets, Returnning spring 25 and seal ring 26, the 24 one-tenth stepped ends of push rod that reset are taper, the push rod 24 overcoat Returnning springs 25 that reset are arranged in the cavity of set casing 22 and reset button 23 formations, the end difference of push rod 24 of resetting arranges seal ring 26, and the tapered end of the push rod 24 that resets matches with the bar section 18 through vent 15.Under the use state, at the filter screen 27 at suction tude 4 places, for filtering from cylinder for liquefied gas the impurity particle of high-pressure liquefaction gas out, avoid impurity to enter pressure governor inside.Rotate handwheel 28 pressure governor and cylinder for liquefied gas are connected firmly, the liquefaction tracheae that connects kitchen range is connected on steam outlet pipe 5.Opening angle value of liquefied gas cylinder ventilates to leakproof safety type lpg regulator, liquefied gas stove is not in the situation that open burning, pressure chamber 3 of the present invention is liquid gas abrim, rubber mass diaphragm 1 is the state of upwards heaving with strength, top flat connecting rod 9 hauls push strut 10 upwards, the push strut 10 be articulated in pressure chamber 3 is rotated, push strut 10 is held one's breath and is filled in 11 toward left side pushing, the rubber pad 29 of filling on 11 that makes to hold one's breath seals the inlet hole 13 on air inlet nozzle 12 firmly, makes pressure governor be the pass gaseity.When leakproof safety type lpg regulator starts air feed to kitchen range, the amplitude that diaphragm 1 is upwards heaved can diminish, the plug 11 of holding one's breath starts to separate with inlet hole 13, liquid gas can flow into pressure chamber 3 through inlet hole 13 continuously, until diaphragm 1 is heaved amplitude peak again, the rubber pad 29 on the plug 11 that makes to hold one's breath again is close to inlet hole 13 and is closed source of the gas.If being connected to suddenly the liquefaction tracheae of steam outlet pipe 5 comes off or breaks, will cause the liquid gas in pressure chamber 3 to leak rapidly, safe current-limiting effect due to security personnel's spool 16, the liquid gas in spool 16 left sides of causing ensuring public security can't in time enoughly flow to security personnel spool 16 right sides and be supplemented, this moment can produce pressure difference in security personnel spool 16 left and right sides, under this pressure difference effect, security personnel's spool 16 can be turned right to slide and be realized the automatic leak-proof security personnel until be close to the closed cut-out vent 15 of security personnel's valve seat 14.Now owing to not having gas, flow to steam outlet pipe 5, the liquid gas of coming in from inlet hole 13 can get more and more in pressure chamber 3 again, and diaphragm 1 is constantly more bulging larger, until hold one's breath plug 11 and the airtight pass of inlet hole 13 gas.Although multiple lpg regulator profile is different, their decompression voltage-regulation principle is the same (in the present invention introduces, we are the pressure regulation process of enumeration pressure governor no longer just).Utilize pressure adjusting spring 8 to stretch voluntarily along with the liquid gas pressure change in pressure chamber 3, thereby automatically control opening and close the control ventilation and closing gas of hold one's breath plug 11 and inlet hole 13, the high-pressure liquefaction gas that automatically will come in from suction tude 4 reduces pressure reposefully as the lower liquid gas of air pressure that meets the kitchen range safe combustion.Start the moment with gas at kitchen range, air pressure in pressure chamber 3 diminishes, diaphragm 1 is flat downwards, pressure adjusting spring 8 between top flat 6 and upper tegmental wall 7 can stretch downwards, top flat connecting rod 9 can move down, push strut 10 also can pressed and moved down, the plug 11 of holding one's breath draws toward the right, thereby the plug 11 that makes to hold one's breath separates with inlet hole 13, liquid gas flows into pressure chamber 3, pressure governor can automatically be adjusted the size that hold one's breath plug 11 and inlet hole 13 separate amplitude, makes through the gas flow of air inlet nozzle 12 inflow pressure chambers 3 and to flow to the gas flow of kitchen range through steam outlet pipe 5 equal, reaches the transient equiliblium of tonifying Qi air feed.If kitchen range are stopped using, pressure chamber 3 air pressure can increase moment, diaphragm 1 can be heaved again with strength, pressure adjusting spring 8 pressurizeds that are pressed in above top flat 6 shrink, top flat 6 and top flat connecting rod 9 move on all can be rapidly, and top flat connecting rod 9 hauls a push strut 10 and rises, and the plug 11 that makes to hold one's breath moves to left, until hold one's breath, the tight inlet hole 13 of plug 11 cuts off air vent prevention liquid gas and flows into pressure chamber 3, thereby realizes closing gas.When the liquid gas flexible pipe that is connected on steam outlet pipe 5 comes off or breaks, as long as when the flow of the liquid gas that leaks surpasses security personnel's flow that security personnel's valve seat 14 sets, security personnel's spool 16 pass gas of ensure public security that will move to right.When the flow leaked when liquid gas surpasses the set security personnel's flow of security personnel's valve seat 14, under the metering function of security personnel's spool 16, the gas flow that flows to security personnel spool 16 the right from security personnel spool 16 left sides can be less than from flow to the gas flow of steam outlet pipe 5 from security personnel spool 16 the right, cause producing an instantaneous pressure in security personnel's spool 16 left and right sides poor, the air pressure on spool 16 left sides of namely ensuring public security is greater than the air pressure on security personnel spool 16 the right, spring 20 now can't bear the existence of this pressure difference, the airtight cut-out air-flow until the closed of the sealed department 17 of the spool 16 of ensuring public security and security personnel's valve seat 14 is thoroughly fitted is moved in 16 beginnings of security personnel's spool toward the right, the reset distance of the conical surface of push rod 24 of now ensuring public security in the right-hand member of bar section 18 of spool 16 and resetting-mechanism 21 becomes very near.After having got rid of the gas leakage accident, only need press reset button 23, can be by the bar section of security personnel's spool 16 18 tops toward the left side when push rod 24 that resets moves down, the sealed department 17 of spool 16 of making to ensure public security separates with the closed of security personnel's valve seat 14, the liquid gas on security personnel spool 16 left sides will flow to the right of security personnel's spool 16 at once like this, the air pressure size of spool 16 the right and lefts of making to ensure public security becomes identical, and under the effect of spring 20, security personnel's spool 16 resets.Above-described embodiment is only that the preferred implementation to the utility model leakproof safety type lpg regulator is described; not design and the scope of model utility are limited; under the prerequisite that does not break away from the utility model scheme; various external form modification and improvement that those skilled in the art make the technical solution of the utility model, all should fall into the protection domain of the utility model leakproof safety type lpg regulator.

Claims (2)

1. a leakproof safety type lpg regulator, comprise upper gas-covering chamber and the pressure chamber separated by diaphragm, the two ends of pressure chamber are provided with suction tude and steam outlet pipe, top flat be positioned in diaphragm and with the diaphragm interlock, be provided with pressure adjusting spring between top flat and upper tegmental wall, it is characterized in that diaphragm (1) below and top flat (6) join top flat connecting rod (9) interlock be articulated in the push strut (10) in pressure chamber (3), push strut (10) interlock slides and is arranged at the plug (11) of holding one's breath in suction tude (4), the interior end of suction tude (4) is air inlet nozzle (12) fixedly, the plug (11) of holding one's breath matches with the inlet hole (13) on air inlet nozzle (12), the fixing security personnel of medial extremity valve seat (14) at steam outlet pipe (5), security personnel's valve seats (14) are upper with vent (15), security personnel's spools (16) form "T"-shaped by sealed department (17) and bar section (18), bar section (18) one ends are spacing by bounding means (19) through vent (15), bar section (18) is at the other end outer casing spring (20) of vent (15), the outer resetting-mechanism (21) that is provided with of steam outlet pipe (5), resetting-mechanism (21) matches with the bar section (18) of security personnel's spools (16) through vent (15).

2. leakproof safety type lpg regulator according to claim 1, it is characterized in that resetting-mechanism (21) comprises set casing (22), reset button (23), push rod (24) resets, Returnning spring (25) and seal ring (26), it is taper that the push rod (24) that resets becomes a stepped end, push rod (24) the overcoat Returnning spring (25) that resets is arranged in the cavity of set casing (22) and reset button (23) formation, the end difference of push rod (24) of resetting arranges seal ring (26), reset push rod (24) tapered end with through the bar section (18) of vent (15), match.

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