KR200185422Y1 - Gas-valve by solenoid - Google Patents

Abstract

The present invention relates to an improvement of a gas valve using a solenoid valve. A pair of explosion-proof solenoids (12) and (14) are installed in an airtight manner in the interior of the valve (10) to instantly open and close the valve (10) by electric force. The O-rings (30) (32) (34) (36) (44) (64) maintain the airtightness of the crossroads to increase safety, and the handle (74) and the shaft By using the manual opening / closing device 16 composed of the 70, the rack gear 68, and the pinion 72, the gas valve 2 of the present invention is manually operated due to a power failure or a failure or necessity of the controller 126. The valve 10 and the auxiliary plate 66 are made of permanent magnets, so that the open or closed state of the valve 10 is continuously maintained, thereby preventing malfunction and providing a free installation, and the gas valve 2 It is designed to reduce the overall volume and weight of the product, and to design the appearance beautifully.

Description

Gas valve using solenoids {Gas-valve by solenoid}

The present invention relates to an improvement of a gas valve using a solenoid valve, and a pair of solenoids are installed in an airtight manner so that the valve can be opened and closed instantly by electric force, and the solenoid uses explosion-proof type. The O-ring maintains airtightness to increase safety, and manual operation of gas valve of the present invention can be operated by power failure or controller failure or need by using manual opening / closing device composed of handle, shaft, rack gear and pinion. The valve and the auxiliary plate are made of permanent magnets to maintain the open or closed state of the valve continuously, thus preventing malfunction and providing freedom of installation, reducing the overall volume and weight, and designing the appearance beautifully. It would be.

Conventionally, open / close valves are provided in the middle of a supply source to which various gases such as gas are supplied or in a supply pipe through which these gases flow, and when the outflow or gas is detected, the open / close valve By closing the crossroads (blocks), losses and large accidents caused by the outflow of gas are prevented.

On the other hand, the conventionally used gas control valve is composed of an integrated solenoid valve and a driving device for operating the solenoid valve, which is not only frequent, but also difficult to disassemble and assemble the solenoid valve and the driving device. Even if it occurred, there was a problem that the entire valve must be replaced.

In other words, the rubber packing used in the solenoid valve's operating part is relatively short in life due to frequent use and wear to prevent the outflow or leakage of gas.In addition, the solenoid valve and its driving device are replaced by a cylinder due to worn rubber packing. There was a waste of resources.

In addition, the manufacturing cost of the valve was not only high, but also there was a problem in safety.

In other words, since the flow path is opened and closed by the electromagnetic solenoid, the flow path is not completely blocked compared to the mechanical ball valve, and the rubber packing with low heat resistance is used, so the temperature and type of gas that can be used ( Range) is narrow, the general purpose is poor, there is a problem of poor workability and difficult repair (A / S) when installing and attaching.

In addition, the ball valve has a problem such as high safety and simple structure, but the response speed is lowered and automation is available only when a separate drive device is installed.

Accordingly, an object of the present invention is to provide a gas valve that is opened and closed accurately and quickly by installing a pair of solenoid valves inside a valve installed in a gas supply source or gas supply pipe.

In order to achieve the above object, a protruding portion and an opposite stepped portion are formed in the inner middle of the tubular body to form a valve chamber in which the valve is accommodated and a solenoid storage chamber in which the explosion-proof solenoid is stored, respectively, and the solenoid is connected by an O-ring to the gas passage. Maintain airtightness of valve and valve chamber, and fix shaft hole and guide tube formed with plural pores in the groove of solenoid with indentation groove, loosely couple working rod to shaft hole of guide tube, one side and middle of operating rod Fix the valve and the auxiliary plate composed of permanent magnets to the part, and form a recess groove round one side of the solenoid, and then insert the O-ring to maintain the airtightness with the valve in contact.

In addition, the inclined portion is formed at the end of the operating rod, the inclined hole is formed in the valve so that a gap is generated between the inclined portion and the inclined hole when the valve is opened, and the valve is fixed by fixing an auxiliary valve having an O-ring coupled to the end of the operating rod. The opening of the valve facilitates the opening of the valve by causing the internal pressure difference of the gas valve to be attenuated or balanced by the occurrence of the gap.

In addition, the disk-shaped auxiliary plate and the rack gear are fixed in the middle of the operating rod, the shaft is installed in the direction crossing the rack gear at right angles, and the pinion engaged with the rack gear is installed in the middle of the shaft. The rod is kept airtight by means of airtightness, and the handle is installed at the end of the shaft rod which protrudes out of the body to open and close the valve manually. By rotating the handle to the marked position according to the state, it is easy to visually check the open or closed state of the gas valve.

In addition, the present invention uses an electric solenoid to control the opening and closing of the valve, so the opening and closing response speed of the valve is high, and the solenoid uses an explosion-proof type and the airtightness and As watertightness is maintained, safety is doubled, thus preventing the risk of explosion.

In addition, since the valve and the auxiliary plate are composed of permanent magnets, the open or closed state of the valve is continuously maintained to prevent malfunction, and the gas valve can be installed freely regardless of the vertical or horizontal position. The volume and weight can be reduced, and the beautiful appearance can be designed.

1-a cross-sectional configuration of the present invention with the valve open.

Fig. 2-Cross-sectional configuration of the present invention with the valve closed.

Figure 3-partial exploded cross-sectional view of the outlet side solenoid of the present invention.

4-front view of the inlet solenoid of the present invention;

5-An enlarged cross-sectional view of the present invention with the valve open.

Fig. 6-An enlarged sectional view of the present invention with the valve closed.

<Explanation of symbols for main parts of the drawings>

(2)-gas valve (4)-body

(6) (8)-copper (10)-valve

(12) (14)-Solenoids (16)-Manual opening and closing devices

(18)-valve chamber (20)-protrusion

(22) (24)-Joint (26) (28)-Solenoid Storage Room

(30) (32) (34) (36) (44) (64)-O-rings (38) (40)-Ro

(42)-Indentation Groove (46)-Soccer

(48)-Qigong (50)-Guide

(52)-working rod (54)-inclined

(56)-Slope (58)-Gap

(60)-Protrusion Frame (62)-Secondary Valve

(66)-Auxiliary Plate (68)-Rack Gear

(70)-Axes (72)-Pinion

(74)-Handle (76) (84)-Metal Bearing

(76)-Packing (80)-Nut

(82) (86)-Indentation Groove (88) (90)-Vertical

(92) (94)-Feeder Wire (96) (98)-Molding Material

(100) (102)-O-Ring

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The gas valve 2 of the present invention has a body 4 having a generally tubular shape as shown in FIG. 1, a flange 6 and 8 screwed to both sides of the body 4, and a valve 10 by electric force. A pair of solenoids 12 and 14 for achieving quick opening and closing of the unit, a manual opening and closing device 16 capable of manually opening and closing the valve 10 by an electrostatic discharge or as necessary; It is largely composed of airtight holding means by a plurality of packings.

In the middle of the space part of the body 4, the protrusion 20 and the opposing step parts 22 and 24 formed by the protrusion 20 are formed round and round, and the valve chamber 18 and the solenoid (where the valve 10 is housed) ( 12) The solenoid storage chambers 26 and 28 to accommodate the 14 are formed, respectively.

The solenoids 12 and 14 are to use explosion-proof solenoids molded with a functional resin to control the flow of gas in the presence of explosion risk, combined with O-ring (30) (32) (34) (36) The gas explosion by the electric spark etc. is prevented by doubling the safety so that the airtight between the gas passages 38 and 40 which are gas passages is maintained.

A concave groove 42 is formed on one side of the outlet solenoid 12 in which the air passage 38 is formed, and then an O-ring 44 is installed to fix the airtight with the valve 10 to be contacted, and the inlet solenoid is fixed. 4, the shaft hole 46 and the plurality of pores 48 are inserted into and fixed to the cross section 40 of the 14, and the shaft hole 46 of the guide tube 50 is fixed. The operating rod 52 is loosely inserted into the operating rod 52 so that the operating rod 52 can reciprocate, and an end of the operating rod 52 has a valve 10 which can close the airway in contact with the O-ring 44. Secure it.

When the valve 10 is fixed to the end of the operating rod 52 to open or close the valve 10, the opening of the valve 10 is not easy due to the pressure difference. It is preferable to facilitate opening of the valve 10 by installing a gap 58 and an auxiliary valve 62 generated by the movement of the operating rod 52 on one side of the valve to ease or level the pressure difference.

That is, when the inclined portion 54 is formed at the end of the operating rod 52 and then the inclined hole 56 of the valve 10 is loosely inserted, the inclined portion 54 and the inclined portion 54 are opened as shown in FIG. 6. The left and right sides of the valve 10 are vented by the gaps 58 formed between the inclined holes 56, so that the pressure difference is almost eliminated as gas flows in and out, thereby easily opening the valve 10 even at low power consumption. can do.

5 and 6, the auxiliary valve 62 having the protruding frame 60 formed in the direction of the valve 10 is coupled to the end of the operating rod 52 to maintain airtightness, and the protruding frame of the auxiliary valve 62 60. Even if a gap 58 is formed in the valve 10 by inserting the O-ring 64 on the inner side (indentation), the airtightness is maintained between the valve 10 and the auxiliary valve 62 by the contact of the O-ring 64. To be maintained.

A disk-shaped auxiliary plate 66 and a rack gear 68 are fitted in the middle of the operating rod 52, and the shaft rod 70 is installed in a direction crossing the rack gear 68 at right angles. The pinion 72 is engaged with the rack gear 68 in the middle portion of the), and the handle 10 is installed at the end of the shaft 70 that protrudes out of the body 4 to install the valve 10. The manual opening and closing device 16 is configured to open and close manually.

The rack gear 68 which is driven by the pinion 72 in the above is preferably in a planar structure to prevent rotation when the operating rod 52 is moved, and the metal to the portion of the body 4 to which the shaft rod 70 is coupled. The bearing 76 and the packing 78 are inserted and then fixed with a nut 80 to maintain the airtight enough to withstand the pressure of the gas, and the lower end of the shaft 70 is inserted into the recessed groove 82 of the body 4. Insert into rack gear 68 and pinion 72 to achieve a tight fit.

If the metal bearing 84 is also installed in the concave groove 82 will be able to greatly reduce the rotational friction of the shaft 70 and the body (4).

In the present invention, the disk-shaped valve 10 and the subsidiary plate 66 are permanent magnets and are attracted to the metal parts of the solenoids 12 and 14 so that the suction force of the solenoids 12 and 14 is removed. Keep the open or closed state of 10) continuously. Therefore, even when the gas valve 2 is installed vertically, the valve 10 and the auxiliary plate 66 can be maintained in an open or closed state by self weight or gravity.

The magnetic force of the valve 10 and the auxiliary plate 66 is weaker than the magnetic force of the solenoid so that the valve is smoothly closed or opened by the solenoids 12 and 14.

On the other hand, the inlet groove 86 is formed in the inlet side solenoid 14 portion in direct contact with the auxiliary plate 66 to allow the gas to flow.

That is, as shown in FIG. 4, a plurality of concave grooves 86 extending outwardly from the subplate 66 are formed to extend outward from the subplate 66 even though the solenoid 14 and the subplate 66 come into contact with each other as shown in FIG. 1. When the valve 10 is opened by allowing the valve chamber 18 and the air passage 40 to be connected to each other through the formed recessed groove 86 and the pores 48, the gas may freely pass.

In addition, the power supply lines 92 and 94 of the solenoids 12 and 14 pass through the through holes 88 and 90 formed on both sides of the body 4 to protrude out of the body 4, and then the through holes 88 (90) to be molded with a molding material (96) (98) such as resin to maintain watertightness and airtightness, and O-ring (100) ( 102 is inserted to maintain the airtightness and watertightness of the solenoid compartments 26,28.

In addition, the opening or closing indication of the handle 74 is made on the surface of the body 4 where the handle 74 is located so that the open / closed state of the gas valve 2 can be easily visually checked.

Reference numeral 104, 106 is a screw thread for connecting the connector, 108 (110) is a protruding frame, (112) (114) is a coil of a solenoid, (116) (118) is a pore formed in the curl, ( 120 and 122 are molding materials, 124 are riveting portions, and 126 are gas valve controllers.

The present invention constituted as described above secures the gas supply pipe to the threaded portions 104 and 106 of the flanges 6 and 8 to be kept airtight, and the feed lines 92 and 94 of the solenoid have a valve 10 opening signal. Alternatively, the valve 10 may be connected to the controller 126 which outputs the closing signal.

On the other hand, if the inlet side solenoid 14 is operated by the controller 126 to open the gas valve 2 as necessary, the auxiliary plate 66 is adsorbed to the solenoid 14 by the electromagnetic force of the solenoid 14. The operating rod 52 coupled thereto moves in the direction of the solenoid 14, and the pinion 72 engaged with the rack gear 68 is rotated clockwise, and the shaft rod 82 is rotated according to the rotation of the pinion 72. FIG. ) And knob 74 are also rotated clockwise.

In addition, since the valve 10 moving along the operating rod 52 is spaced apart from the outlet side solenoid 12 and the O-ring 44 and the valve 10 which are in close contact with each other are spaced apart as shown in FIG. 1, a gas passage is formed. The gas supplied to the inlet side is discharged to the outlet side.

Although the auxiliary plate 66 is adsorbed to the inlet solenoid 14 in the above, as shown in FIG. 4, the valve chamber 18 and the air passage are provided through the plurality of recessed grooves 86 and the pores 48 extending outward from the auxiliary plate 66. Since the 40 are connected to each other, the closed flag is opened and the gas flow is free.

When the gas valve 2 is to be manually opened due to power failure or necessity, the valve 10 of the manual opening / closing device 16 is rotated clockwise to open the valve 10 in the above-described process. Since the electric solenoid is used, the opening and closing of the valve 10 is quick, and the response speed is high.

On the other hand, when the valve 10 is opened, the internal pressure difference of the gas valve 2 is attenuated or balanced by the gap 58 generated by the auxiliary valve 62 and the inclined structure, so that the valve 10 is easily opened. .

That is, since the valve 10 is first moved to the outlet side by the electromagnetic force of the solenoid 12 as shown in Figure 6 between the inclined portion 54 formed on the operating rod 52 and the inclined surface 56 formed on the valve 10 A gap 58 is generated, and then the O-ring 64 and the valve 10 which are in close contact with each other are separated and spaced apart, so that the internal pressure difference of the gas valve 2 is attenuated or balanced, so that the valve 10 is easily opened.

When the gas valve 2 needs to be manually operated due to a power failure or a failure or necessity of the controller 126, the manual opening / closing device 16 may be opened.

That is, when the knob 74 of the manual opening / closing device 16 is rotated clockwise, the shaft rod 70 and pinion 72 coupled thereto rotate clockwise, and the rack gear 68 and the operating rod 52 are rotated clockwise. Since it moves to this inlet side solenoid 14, the valve 10 and the channel | route are opened and gas flows freely as mentioned above.

On the other hand, if you want to close the valve 10, if necessary to operate the outlet side solenoid 12 by the controller 126, the valve 10 is attracted to the solenoid 12 by the electromagnetic force of the solenoid 12 is coupled to this The operating rod 52 moves in the direction of the solenoid 12, the pinion 72 meshed with the rack gear 68 is rotated counterclockwise, and the shaft rod 82 in accordance with the rotation of the pinion 72. And knob 74 is also rotated counterclockwise.

In addition, the valve 10 moving along the operating rod 52 is spaced apart from the inlet solenoid 14 and the O-ring 44 and the valve 10 which are spaced apart from each other as shown in FIG. The passage is closed, so the supply of gas is interrupted.

When the gas valve 2 needs to be manually operated due to a power failure or a failure or necessity of the controller 126, the manual opening / closing device 16 may be opened.

That is, when the knob 74 of the manual opening and closing device 16 is rotated counterclockwise, the shaft 70 and pinion 72 coupled thereto rotate in the counterclockwise direction, and the rack gear 68 and the operating rod ( 52 moves to the outlet side solenoid 12, the valve 10 and the airway are closed as described above, and the flow of gas is blocked.

A small amount of gas may flow between the gaps 56 due to the pressure of the gas supplied from the gas, but the radius of the O-ring 64 is small, and the operating rod 52 and the auxiliary valve 62 are caused by the magnetic force of the auxiliary plate 66. ) Has a force to move to the inlet side, so that the auxiliary valve 60 and the O-ring 64 is in close contact with each other to prevent the outflow of gas.

In the present invention, the valve 10 composed of permanent magnets has magnetic force, but has a weaker magnetic force than the electromagnetic force of the solenoid 14, so that the valve 10 can be easily moved to the inlet solenoid 14, and the auxiliary plate 66 is also permanent. Since it is composed of a magnet, it is adsorbed by the inlet solenoid 14, so that the open state of the valve 10 is continuously maintained. Therefore, even if the driving power and the magnetic force of the solenoid 14 are removed, the open state or closed state of the valve 10 is eliminated. Is maintained continuously.

In the present invention, the solenoids 2 and 14 are explosion-proof molded in resin, and the airtightness and watertightness with the crossroads are maintained by a plurality of O-rings 30, 32, 34, 36, 100 and 102. This doubles the safety, thus preventing the risk of explosion and extending the lifespan.

In addition, the present invention has an advantage that the repair (A / S) is easy because the fastening structure and the coupling structure, the rotation position of the handle 74 in the open or closed display position according to the opening and closing state of the gas valve (2) Since the open or closed state of the gas valve (2) can be easily checked with the naked eye.

As described above, the present invention interrupts the opening and closing of the valve by using an electric solenoid, so that the opening and closing response speed of the valve is high.

In addition, the solenoid uses an explosion-proof type, and the airtightness and watertightness with the crossroads are maintained by a plurality of O-rings, so the safety is doubled, thus preventing the risk of explosion and extending the service life.

In addition, by using a manual opening and closing device consisting of a handle, a shaft, a rack gear and a pinion, there is an effect that the gas valve of the present invention can be manually operated due to a power failure or a failure or a need of a controller.

In addition, since a gap is generated due to the auxiliary valve and the inclined structure on one side of the valve, the opening of the valve is easy because the internal pressure difference of the gas valve is attenuated or equilibrated by the gap when the valve is opened.

In addition, since the valve and the auxiliary plate is composed of a permanent magnet, the open or closed state of the valve is continuously maintained, thereby preventing malfunction, and freely installing the gas valve vertically or horizontally.

In addition, since the configuration is relatively simple, it is possible to reduce the total volume and weight of the gas valve, and the appearance can be beautifully designed.

In addition, since the rotational position of the handle moves to the closed display or the open display position according to the open / closed state of the valve, it is a very useful design having an effect such that the open or closed state of the gas valve can be easily visually confirmed.

Claims (4)

A pair of solenoids 12 and 14 which are screwed to both sides of the body 4, a pair of solenoids 12 and 14 which achieve quick opening and closing of the valve 10 by electric force, A gas valve using a solenoid composed of a manual opening / closing device (16) capable of manually opening and closing the valve (10) as needed, and a hermetic holding means by a plurality of packings. The valve chamber 18 and the explosion-proof solenoid of claim 1, wherein the protrusions 20 and the opposing step portions 22, 24 are formed in the middle of the inside of the body 4, and the valve 10 is housed. 12 and 14 form solenoid storage chambers 26 and 28, respectively, and the solenoids 12 and 14 are coupled to the O-rings 30, 32, 34 and 36 as gas passages. (38) (40) and the valve chamber 18, the guide tube formed with a shaft hole 46 and a plurality of pores (48) in the airway 40 of the solenoid (14) in which the recess groove (86) is formed (50) is inserted and secured, the operating rod 52 is loosely coupled to the shaft hole 46 of the guide tube, the valve 10 and the auxiliary plate (66) consisting of permanent magnets on one side and the middle of the operating rod 52 ), And the recess groove 42 is formed on one side of the solenoid 12, and then the O-ring 44 is inserted to maintain the airtight with the valve 10 in contact with the gas using the solenoid. valve. The inclined portion (4) according to claim 1 or 2, wherein the inclined portion (54) is formed at the end of the operating rod (52), and the inclined portion (56) is formed in the valve (10). Using the solenoid characterized in that the gap 58 is generated between the 54 and the inclined hole 56, and the auxiliary valve 62 is coupled to the O-ring 44 at the end of the operating rod 52. Gas valve. The disc rod according to claim 1 or 2, wherein the disc-shaped auxiliary plate 66 and the rack gear 68 are fitted in the middle of the actuating rod 52, and the shaft rod is formed in a direction perpendicular to the rack gear 68. 70) and the pinion 72 meshed with the rack gear 68 in the middle of the shaft 70, and the body 4 and the shaft 70 are kept airtight by means of airtightness, and the body (4) A gas valve using a solenoid, characterized in that the handle (74) is provided at the end of the shaft (70) protruding outward so that the valve (10) can be opened and closed manually.