CN2152992Y

CN2152992Y - Automatic control valve for gaseous fuel

Info

Publication number: CN2152992Y
Application number: CN 93202909
Authority: CN
Inventors: 袁培茂
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-20
Filing date: 1993-02-20
Publication date: 1994-01-12
Anticipated expiration: 2003-02-20

Abstract

The utility model relates to an automatic control valve for fuel gas, which is a safety control valve used on general household gas stoves. A valve body is integrally connected with a control box. The automatic control valve for fuel gas is provided with a safety control mechanism against shock and swing, and a safety control mechanism against the fuel gas leakage of an electromagnet. The automatic control valve for fuel gas can automatically cut off gas supply when a gas stove or a gas supply pipe shocks or swings. The automatic control valve for fuel gas can be matched with a detecting alarm device; the automatic control valve for fuel gas can automatically close in order to cut off the gas supply and extinguish the flame of the gas stove when fuel gas leakage occurs. The utility model has the advantages of small size, convenient operation, convenient installation and convenient maintenance, and can effectively guarantee the using safety of the gas stove.

Description

Automatic control valve for gaseous fuel

The utility model relates to a kind of gas-cooker automatic safe by-pass valve control.

Present various gas kitchen ranges, the control valve that uses on the particularly home-use gas kitchen ranges mostly is the manual type mechanical valve, valve can not in time be closed the cut-out source of the gas automatically in case combustion gas takes place unusual or kitchen range break down when jeopardizing safe handling, is prone to accidents.And adopt common magnetic valve and alarm detector coupling to carry out security control, because the magnetic valve volume is big, cost is high, the automatic control system complex structure is installed inconvenience, thereby seldom uses on general household gas range.Simultaneously, such safety control is subjected to vibration at kitchen range and jeopardizes kitchen range when safe handling and can not cut off source of the gas by self-closing valve, thereby its security reliability is difficult to obtain effectively reliably and guarantees.

It is little that the purpose of this utility model provides a kind of volume, installation, easy to use, be suitable for that the family gas kitchen ranges uses, kitchen range be subjected to vibrating jeopardize when safe handling can be automatically in time valve-off cut off source of the gas, share at kitchen range with alarm detector or steam line generation combustion gas is little can cut off the combustion gas autocontrol valve of source of the gas when leaking automatically.

The combustion gas autocontrol valve is connected with control cabinet is whole by the valve body that spool, valve seat constitute, and spool chamber is communicated with control cabinet case chamber.Stake body is fixed in the control cabinet, and " L " shape unhook plate one end is hinged on the stake body, and its free end is fixed with inhales iron and corresponding with the electromagnet that is made of iron core and solenoid on being fixed on tank wall.Spool connects with execution arm one end, and the execution arm other end stretches in the control cabinet chamber by spool chamber and is positioned at stake body guide slide place and touches with the execution masthead that is positioned at slideway, and the execution masthead pushes away the displacement of execution arm can make valve opening.It is hinged to carry out bar and driving lever, and driving lever one end is hinged by block hole its other end of block and push rod one end on the unhook plate, and an end of the push rod other end and moving bar and push rod is hinged.The push rod other end is hinged on the stake body, and the moving bar other end is hinged with the depression bar that is fixed on the bellows roof face, and bellows and telescopic shell thereof are fixed on the control cabinet cover plate.Have the vibrations position-sensing unit that the horizontal arm of weight and vertical arm integral body that the end has weight connects and composes by the end and be loaded on the movable frame, movable frame is hinged on the support, and support is fixed on the control cabinet cover plate.Vibrations position-sensing unit and movable frame can be rotated mutually, are fixed with on the responsive vertically arm of vibrations to dial to evade dialling of hook plate and pawl, and shake the vertical arm of the position-sensing unit plate that can promote to break off relations and rotate around jointed shaft.The unhook plate has return spring.Carrying out arm has recoil press spring, and recoil press spring is fixed on the stake body, and the recoil press spring pushing tow is carried out the arm return and made valve closing.

The combustion gas autocontrol valve further improve be carry out arm and spool hinged and be equipped with that balance pushes away spring so that spool and valve seat keeping parallelism and guarantee valve closing after seal, be easy for installation and maintenance simultaneously.

The combustion gas autocontrol valve is loaded on when using on the preceding steam line of gas-cooker, and its electromagnet is electrically connected with gas leakage detection alarm device.Manually press down bellows then and depression bar is pressed down by push rod, push rod promote driving lever along the chute displacement, and then promote to carry out the arm slippage and make valve opening, recoil press spring is compressed simultaneously.Swing up and down when taking place to shake the position-sensing unit horizontal arm when vibrations or heavy curtain move, vertical arm is swung, and the vertical arm displacement that just promotes to break off relations when amplitude of fluctuation acquires a certain degree makes unhook plate level arm clockwise rotate an angle and makes the driving lever end by deviating from the block hole.Block is removed in the driving lever end, carries out bar because of being subjected to carrying out the thrusting action of arm by return under recoil press spring pushing tow and the bellows elastic force double action.Carry out the arm pushing tow and carry out the bar return, valve is closed at once.After vibrations disappeared, the unhook plate returned to the original displacement of level under the return spring effect, and the driving lever end is again by the block hole block on the unhook plate.When heavy curtain is moving before and after taking place, the vertical arm swing thereupon of vibrations position-sensing unit.Dialling when amplitude of fluctuation acquires a certain degree pawls dials and to evade the vertical arm displacement of hook plate and make unhook plate level arm clockwise rotate an angle driving lever end portion is closed valve by deviating to carry out above-mentioned pass valve process in the block hole.Detecting and send the signal of telecommunication by electrical equipment detection alarm device when combustion gas has leakage makes electromagnet energising and the moving iron of inhaling of suction carry out the pass valve events process of said process with valve closing.

The combustion gas autocontrol valve be used for gas-cooker be taken in to take place earthquake or because of the other reasons chamber of causing take place big vibrations or heavy curtain when moving control valve can automatically valve closing be cut off air feed kitchen range are extinguished, control valve is closed automatically and is cut off air feed and extinguish stove when gas pipeline or kitchen range generation gas leakage, thereby has guaranteed the safe handling of gas-cooker.The control valve volume is little, and is simple in structure, and it is convenient to install and repair, and is suitable for general family and installs and uses.

Accompanying drawing is an embodiment of the present utility model, further specifies the utility model below in conjunction with accompanying drawing.

Fig. 1 is a combustion gas autocontrol valve structure chart;

Fig. 2 is that the A of Fig. 1 is to view;

Fig. 3 is that the B of Fig. 1 is to view;

Fig. 4 is that the C of Fig. 1 is to view;

Fig. 5 is the D-D cutaway view of Fig. 1;

Fig. 6 is the adapter figure when using the combustion gas autocontrol valve.

As shown in Figure 1, the combustion gas autocontrol valve is connected with control cabinet (37) by the valve body that spool (25), valve seat (45) constitute, and control cabinet case chamber utilizes cover plate (43) and screw (38) fastening airtight.Spool has sealing gasket (24) to leak gas behind the valve closing preventing, spool by jointed shaft (26) with to carry out arm (27) hinged.Spool has balance to push away spring (23), so that the parallel seal that guarantees after valve cuts out with valve seat of valve core sealed cover.Carrying out the arm other end stretches in the control cabinet case chamber, its end contacts with the execution bar (31) that is positioned at stake body (21) guide slide, carry out bar and in slideway, can come and go slide displacement, carry out arm recoil press spring (33) is arranged, recoil press spring is fixed on the stake body, its end is fixed with spring abutment (32), and recoil press spring connects by spring abutment and execution arm.Stake body is fixed in the control cabinet." L " shape unhook plate (17) is hinged on the stake body, is fixed with on its vertical arm to inhale iron (16), and suction iron and the electromagnet by iron core (11) and solenoid (15) formation that is fixed on the control tank wall are corresponding.The unhook plate has return spring (22), the unhook plate after jointed shaft rotates, but at return spring effect self-return.Driving lever (30) is articulated on the driving lever bar section with carrying out bar, and driving lever one end stretches in the block hole on the unhook plate its other end of block and push rod one end, and to pass through jointed shaft (34) hinged.Push rod (35) other end is hinged with an end of push rod (9) and moving bar by jointed shaft (8), the push rod other end is hinged on the stake body by jointed shaft (19).The moving bar other end and depression bar (39) are hinged by jointed shaft (3).The bar cover (1) that depression bar passes on the cover plate is fixed on the bellows roof face, and bellows has the telescopic shell that is made of gland (44) and wedge (41) outward, and bellows, shell are fixed on the cover board.Vibrations position-sensing units (18) are made of horizontal arm that has weight (36) and the vertical arm that has weight (20), and the vibrations position-sensing unit is loaded on the moving frame (7), and can rotate mutually.Moving frame is hinged on the support (5) by jointed shaft (4), and support is fixing on the cover board by trip bolt (2).Have to dial on the vertical arm of vibrations position-sensing unit and pawl (46), dialling pawls can dial and evade hook plate and rotate an angle around hinge.

The use of combustion gas autocontrol valve is taken over as shown in Figure 6, before combustion gas autocontrol valve access kitchen range, on the steam line after the gas gauge table, electrically connect with leakage gas detection alarm device then, can come into operation after installing, manually press down bellows during use depression bar is pressed down, pressure rod promotion push rod and push rod rotate around jointed shaft respectively under the depression bar, push rod rotates counterclockwise around jointed shaft, and push rod rotates around the jointed shaft clockwise direction simultaneously with the jointed shaft displacement simultaneously.Pushrod movement promotes driving lever makes it rotate counterclockwise around carrying out bar, but the folder retaining in integrated circuit board retaining hole because the other end of driving lever is subjected to breaking off relations, no longer make after it is turned an angle and carry out bar along the guide slide slide displacement around carrying out bar to rotate, and promote to carry out the arm displacement and make valve opening, recoil press spring is compacted.Locked location when to be moved to above jointed shaft (8), (34), (19) line be the position of straight line hinge (8), (34), manually exerting pressure discharges late gate and promptly is in opening all the time, and kitchen range promptly drop into normal use.

Earthquake takes place or because of other reasons causes when vibrating up and down, upper and lower vibration also takes place and frame is swung around hinge vertical arm is swung in the horizontal arm of vibrations position-sensing unit, and vertical arm also swings when horizontal arm swings.When this amplitude of fluctuation acquires a certain degree, the vertical arm that the vertical arm of position-sensing unit promotes " L " shape unhook plate displacement forward makes unhook plate level arm turn an angle and make the driving lever end deviate from the block hole and remove the block effect around the jointed shaft clockwise direction, after the driving lever end is removed block, the recoil press spring pushing tow is carried out arm slip return and then is promoted to carry out bar slip return, under the effect of bellows elastic force, push away simultaneously, push rod is subjected to the moving bar effect of lifting and recovers reset condition, the unhook plate is return under the return spring effect, the driving lever end inserts in the block hole again, carries out arm slip return valve and is closed.When control valve is subjected to the moving or shock effect of forward and backward heavy curtain, the forward and backward swing of vertical arm of position-sensing unit.When reaching certain amplitude, swing dials the vertical arm of the pushing unhook plate displacement forward of pawling, unhook plate level arm rotates an angle around the jointed shaft clockwise direction, the driving lever end is deviate from by the block hole and is removed the block effect, promptly carries out its valve of course of action of above-mentioned valve-off after the effect of unhook plate releasing block and closes cut-out kitchen range air feed.The detection alarm device sends signal when detecting the leakage combustion gas makes the suction iron on the moving unhook plate of control valve electromagnet energising suction make the unhook plate clockwise rotate an angle around jointed shaft, and the driving lever end promptly makes valve closing cut off the kitchen range air feed by deviating to remove block in the block hole.When reusing, manually press down bellows once more the valve opening kitchen range can be come into operation by air feed again.

Claims

1, a kind of combustion gas autocontrol valve, it is characterized in that by spool, the valve body that valve seat constitutes is connected with control cabinet is whole, spool chamber is communicated with control cabinet case chamber, stake body is fixed in the control cabinet, " L " shape end that breaks off relations is hinged on the stake body, its free end is fixed with inhales iron and corresponding with the electromagnet that is made of iron core and solenoid on being fixed on the control tank wall, spool connects with execution arm one end, the execution arm other end stretches in the control cabinet chamber by spool chamber and is positioned at stake body guide slide place and touches with the execution masthead that is positioned at slideway, it is hinged to carry out bar and driving lever, driving lever one end is by the block hole block on the unhook plate, its other end and push rod one end are hinged, the push rod other end and moving bar and push rod one end are hinged, the push rod other end is hinged on the stake body, the moving bar other end is hinged with the depression bar that is fixed on the bellows roof face, bellows and scalable shell thereof are fixed on the control cabinet cover plate, having the vibrations position-sensing unit that the horizontal arm of weight and vertical arm integral body that the end has weight is formed by connecting by the end is loaded on the movable frame, movable frame is hinged with the support that is fixed on the control cabinet cover plate, vibrations position-sensing unit and movable frame can be rotated mutually, be fixed with on the vibrations position-sensing unit vertical arm to dial and evade dialling of hook plate and pawl, the vibrations position-sensing unit vertical arm plate that can promote to break off relations rotates around jointed shaft, the unhook plate has return spring, and carrying out arm has recoil press spring.

2, by the described combustion gas autocontrol valve of claim 1, it is characterized in that said spool is hinged with the execution arm, spool has makes the balance of valve core sealed cover and valve seat keeping parallelism push away spring.