CN2322004Y

CN2322004Y - Hand, electric driving two-purpose high-temp., powder dust and sand resistant air valve

Info

Publication number: CN2322004Y
Application number: CN 97244006
Authority: CN
Inventors: 孙凯
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-11-04
Filing date: 1997-11-04
Publication date: 1999-06-02
Anticipated expiration: 2007-11-04

Abstract

The utility model relates to a hand driven and an electric driven two-purpose air valve for high-temperature resistance, powder dust resistance, and sand resistance, which is composed of a valve body, a hemisphere, a sealing ring, a hand driven switch mechanism, and an electric switch mechanism which is mainly composed of an electromagnet and a pull rod. The valve body is an accumbent, T-shaped cylinder body whose upper part is provided with an air inlet, and the lower part is provided with an air outlet which is enclosed by the hemisphere. The electromagnet is positioned at single side of the valve body, and the purpose of automatic switch is reached by the process that the lifting of the hemisphere is controlled by a switch control rod, and a travel range switch. Because the utility model is provided with a V-shaped groove which is arranged on the sealing ring matched with the hemisphere, and the electromagnet can switch the vave through passing through the side of a connecting rod, the utility model has the advantages of high-temperature resistance, powder dust resistance, good tightness, and firm and durable structure.

Description

Manually, the gas valve of high temperature resistant, dust of electric dual-purpose and sand-lime

The utility model relate to a kind of manually, electric dual-purpose is high temperature resistant, the gas valve of dust and sand-lime, belongs to a kind of conveying gas equipment.

In the valve of present existing control gaseous operation, all require gas cleaner, can not contain too many dust, more can not contain dirt and sand grains, otherwise will cause valve to close tight, in addition valve is stuck and driving mechanism is damaged, if by gas is the condition of high temperature, since the valve internal member, temperature distortion, and problem is just more serious, so solve the valve of carrying high temperature and having dust, sand-lime gas, be a great problem in the industrial production.

The purpose of this utility model be to provide a kind of manually, the gas valve of electric dual-purpose, it not only can carry high-temperature gas also not can because of be mixed with dust in the gas, sand-lime damages, and valve opening and closing is tight, and is sturdy and durable.

The purpose of this utility model is achieved in that manually, electric dual-purpose is high temperature resistant, the gas valve of dust and sand-lime, constituted by the main motor switch mechanism that constitutes by valve body, hemisphere, seal ring, hand switch mechanism with electromagnet and pull bar, valve body is the T font cylinder of an accumbency, top is suction port, the bottom is the air outlet with the hemisphere sealing, electromagnet is positioned at a side of valve body, and can the switch adjustable lever, the rising and falling of position limit switch control hemisphere, reach the purpose of recloser.

Advantage of the present utility model:

1, high temperature resistant, dust and sand-lime: in the valve body of this valve, on seal ring and internal surface that hemisphere matches, have the V font groove that circularizes along circumference, make air valve sealing good, the dust, the sand grains that mix in the while gas, when air valve was closed, hemisphere can be compressed into these foreign material the annular groove of seal ring and guarantee sealability, when treating that open next time, foreign material can be taken away by air-flow in the groove; Even because of when the high temperature, hemisphere and seal ring are out of shape simultaneously, and hemisphere is stuck in the seal ring, still can open and close freely again; In electronic part, use long stroke electromagnetic iron, the electromagnet apparatus level is installed in a side of valve body, can not infiltrate foreign material, when electromagnet is switched on, if valve internal is buried extremely by sand, and can't open, the result just can not draw away valve, burns out motor or driving mechanism is damaged with motor driving and can not resemble, so the utility model can be high temperature resistant, dust and sand-lime, and sturdy and durable.

2, valve opening and closing, maneuverability: in the utility model, be positioned at the transmission shaft of valve body, be critical component, and its two ends are provided with the double-deck axle sleeve that is processed by stainless steel or copper material, the transmission shaft surface of contact can be because of the work under bad environment corrosion, and the transmission spindle nose can not block.

3, easy to use: the utility model; existing hand switch mechanism; motor switch mechanism is arranged again, no matter manual or electronic, all there is corresponding detection to drive the position limit switch of valve or close valve state; valve is provided out or closes valve position signal; by being located at the connector assembly of switch protection cover one side, can will open and close signal and send at a distance, understand the working state of valve; also can realize the automation of opening/shutting valve simultaneously by microcomputer and control instrument.

The utility model concrete structure is provided by following examples and accompanying drawing thereof:

Fig. 1 is the utility model structural representation.

Fig. 2 is that the A of Fig. 1 is to schematic representation.

Fig. 3 is the schematic representation of hemisphere and seal ring surface of contact in the utility model.

Fig. 4 is the axle sleeve schematic representation at transmission shaft two ends in the utility model.

Describe in detail below in conjunction with accompanying drawing:

Referring to Fig. 1,2,3,4, should be manually, electric dual-purpose is high temperature resistant, the gas valve of dust and sand-lime, by valve body 30, hemisphere 19, seal ring 20, hand switch mechanism, motor switch mechanism and electromagnet, and position limit switch is formed, valve body 30 is the T font cylinder of accumbency, the top is a suction port, the bottom is the air outlet, and be connected with steam outlet pipe with suction tude respectively, bottoms are provided with O-ring seal 20 in the valve body 30, and seal ring 20 inner edges are provided with the concave surface that matches with hemisphere 19 surfaces as piston, and hemisphere 19 is provided with the vertical connecting rod 18 that is hinged with rocking arm 17; In the side direction square tube 301 of valve body 30, be provided with and 17 one-tenth orthogonals of rocking arm and the transmission shaft 16 that is hinged, the two end supports of transmission shaft 16 is on the support sleeve of square tube 301 barrels, and an end of transmission shaft 16 stretches out barrel, is hinged with the hand switch handle 14 of bending; In the outside top of square tube 301, only lock pin 15 is installed, handle 14 and end lock pin 15 and constitute the hand switch structures;

Motor switch mechanism includes the collar 13 that is hinged with handle 14, the iron core 10 that is positioned at slideway 9; iron core 10 1 ends are connected with pull bar 13; the other end connects switch adjustable lever 6; one end of iron core 10 is enclosed within the coil 7 in slideway 9 outsides; the other end of switch adjustable lever 6 is connected with the shell fragment 5 that is positioned at 3,4 on position limit switch; whole iron core 10, coil 7 and pull bar 13 all are located on the electromagnet supporting frame 12; 7 of coils are closed in the casing that is sealed by cover plate 8, and an end and 3,4 on open and close Valve travel switch that switch adjustable lever 6 connects shell fragments 5 place in the safety cover 1.

Described only lock pin 15 only includes, and lock pin head 21, tubular end lock pin support 22, end lock pin button 24, end locking bar and be placed in the spring 23 that ends on the locking bar, it ends the outside top that lock pin support 22 is fixed in square tube 301, ends locking bar and only passes lock pin support 22 and can slide therein.

The set O-ring seals 20 in bottom in the described valve body 30 on itself and hemisphere 19 contacted internal surfaces, are provided with annular 5-20 road vee-cut.

The support sleeve of described transmission shaft 16 two ends spindle noses 26 is double-deck axle sleeve, and internal axle sleeve 29 is fixed in the two ends of transmission shaft 16, and external axle sleeve 28 is fixed in the axle sleeve frame 27, and axle sleeve frame 27 is welded on the barrel of square tube 301.

Described iron core 10 connects an end of switch adjustable levers 6, is provided with to preventing the remanent magnetism effect and stainless steel gasket 11 iron core 10 same diameter.

The utility model is pressed active handle 14 counterclockwise when manually opened, handle 14 drives transmission shaft 16 and rotates, then transmission shaft 16 drives rocking arm 17, upwards lift pull-up hemisphere 19, valve open counterclockwise, at this moment, according to direction 25, press only locking bar button 24 with hand, spring 23 is compressed, ending lock pin head 21 stretches out to arrow 25 directions, at this moment decontrol handle 14, then handle 14 is ended lock pin head 21 and is blocked, and valve opening is motionless, press handle 14 down, under spring 23 effects, shotpin tapered end 21 is return, and decontrols handle 14 again, hemisphere 19 falls valve closing because of deadweight.

When electric opening, in coil 7, feed electric current, the magnetic field that produces iron core 10 is sucked, slide left, drive pull bar 13, pull bar 13 drives handles 14 and counterclockwise rotates valve opening; Turn-off current, hemisphere 19 falls because of deadweight, valve closing, iron core 10 returns to original position.

The

position limit switch

3,4 of valve and the wiring of coil 7 are connected with the external control instrument by the connector assembly of being located on the switch protection cover 12, understand the keying state of valve, and realize the automation of valve opening and closing.

Hemisphere 19 and seal ring 20 in the utility model, according to the environment that uses different and optional cylinder iron, copper or stainless steel manufacturing; In 30 distances that are connected by electromagnet supporting frame 12 of electromagnet and valve body, change with the height of valve used medium temperature, generally selected between 700-2000mm; At the groove of valve body 30 inner seal rings 20 inboards, groove width is between 1.5-2.5mm, and the degree of depth is 1-2mm, is V font wide outside and narrow inside, so that the landing of dust sand-lime.

Claims

1, a kind of manually, electric dual-purpose is high temperature resistant, the gas valve of dust and sand-lime, by valve body (30), hemisphere (19), seal ring (20), hand switch mechanism, motor switch mechanism and electromagnet, and position limit switch forms, and it is characterized in that:

Valve body (30) is the T font cylinder of accumbency, the top is a suction port, the bottom is the air outlet, and be connected with steam outlet pipe with suction tude respectively, the interior bottom of valve body (30) is provided with O-ring seal (20), seal ring (20) inner edge is provided with and the concave surface that matches as hemisphere (19) surface of piston, and hemisphere (19) is provided with the vertical connecting rod (18) that is hinged with rocking arm (17); In the side direction square tube (301) of valve body (30), be provided with the transmission shaft (16) that becomes orthogonal and be hinged with rocking arm (17), the two end supports of transmission shaft (16) is on the support sleeve of square tube (301) barrel, one end of transmission shaft (16) stretches out barrel, is hinged with the hand switch handle (14) of bending; Outside top in square tube (301) is equipped with only lock pin (15), handle (14) and end lock pin (15) formation hand switch structure;

Motor switch mechanism includes the collar (13) that is hinged with handle (14); be positioned at the iron core (10) of slideway (9); iron core (10) one ends are connected with pull bar (13); the other end connects switch adjustable lever (6); one end of iron core (10) is enclosed within the coil (7) in slideway (9) outside; the other end of switch adjustable lever (6) is connected with and is positioned at position limit switch (3); (4) shell fragment between (5); whole iron core (10); coil (7) and pull bar (13) all are located on the electromagnet supporting frame (12); coil (7) then is closed in the casing that is sealed by cover plate (8), and switch adjustable lever (6) connects an end of shell fragment (5) and opens; close Valve travel switch (3); (4) then place in the safety cover (1).

2, by the described gas valve of claim 1, it is characterized in that: the described lock pin (15) that ends only includes that lock pin head (21), tubular end lock pin support (22), ends lock pin button (24), ends locking bar and is placed in spring (23) on the locking bar only, it ends the outside top that lock pin support (22) is fixed in square tube (301), ends locking bar and only passes lock pin support (22) and can slide therein.

3, by the described gas valve of claim 1, it is characterized in that: the O-ring seal (20) that the interior bottom of described valve body (30) is set on itself and the contacted internal surface of hemisphere (19), is provided with annular 5-20 road vee-cut.

4, by the described gas valve of claim 1, it is characterized in that: the support sleeve of described transmission shaft (16) two ends spindle noses (26) is double-deck axle sleeve, internal axle sleeve (29) is fixed in the two ends of transmission shaft (16), external axle sleeve (28) is fixed in the axle sleeve frame (27), and axle sleeve frame (27) is welded on the barrel of square tube (301).

5, by the described gas valve of claim 1, it is characterized in that: described iron core (10) connects an end of switch adjustable lever (6), is provided with to preventing the remanent magnetism effect and stainless steel gasket (11) iron core (10) same diameter.