CN2231740Y

CN2231740Y - Thixotropic bistable electric pneumatic valve

Info

Publication number: CN2231740Y
Application number: CN 95221533
Authority: CN
Inventors: 李洪岐; 唐树轩
Original assignee: Tdj Rearch Centre Harbin Railway Bureau
Current assignee: Tdj Rearch Centre Harbin Railway Bureau
Priority date: 1995-09-13
Filing date: 1995-09-13
Publication date: 1996-07-24
Anticipated expiration: 2005-09-13

Abstract

The utility model relates to a thixotropic bistable electric pneumatic switch valve, which controls wind paths through moment energization and is used for remote control on some circuits, machinery and gas circuits, and the utility model belongs to an electromagnetic remote control device. The utility model is mainly characterized in that an electromagnet is corresponding to the direction of a switch valve body provided with a permanent magnet; when the polarity of the electromagnet and the polarity of the permanent magnet are the same, the switch valve body closes the air inlet and exhaust passages. Inversely, when the polarity of the electromagnet and the polarity of the permanent magnet are different, the switch valve body opens the air inlet and exhaust passages. An exciting circuit of an electromagnetic coil is connected with a self-reset power supply change switch. The utility model solves the problem that ordinary electric pneumatic valve can maintain some operating condition of the switch valve body in the condition of energization all the time.

Description

The empty switch valve of thixotroping bistable electro

The empty switch valve of the utility model thixotroping bistable electro by moment alive circuit control wind path, to realize that some electrical equipment or machinery are carried out remote operation, also can be used for controlling in the gaspipe line and send, dies, and belongs to the electromagnetic type remote control unit.

The electric pneumatic valve that uses mainly is made up of electromagnetic system and air-valve device two-part at present, its electromagnetic system is a general structure such as coil, iron core, armature, the electric pneumatic valve of this structure is to be in all the time to electricity condition at circuit to guarantee that it is operated in the operating mode that gas circuit is opened, and electric current is bigger, not only power consumption also influences the equipment life-span itself.

The purpose of this utility model is exactly to overcome the shortcoming that above-mentioned prior art exists, designing the energising of a kind of moment, just to make electric pneumatic valve be another kind of operating mode (transferring blocking to by opening as gas circuit) from a kind of change working, and can keep energy-conservation, the empty switch valve of novel electricity that the life-span is grown of this operating mode after cutting off the power supply.

The purpose of this utility model can realize in the following manner.

The empty switch valve of this electricity also is made up of electromagnetic system and air-valve device two-part, electromagnetic system still comprises coil, skeleton, iron core and field circuit, the air-valve device still comprises the switch valve body, valve block and advancing, exhaust passage etc., institute's difference is that the top of switch valve body is provided with permanent magnet, the bottom is provided with spring and seal rubber pad, the electromagnet that iron core constituted that is wound with coil and the switch valve body that has permanent magnet be on the throne put corresponding, when the polarity of the polarity of electromagnet and permanent magnet on the other side is identical, the two repels each other, the switch valve body is positioned at and will advances, the position of exhaust passage sealing, otherwise when the polarity of the polarity of electromagnet and permanent magnet is different, the two is inhaled mutually, and the switch valve body is positioned at and will advances, the position that open the exhaust passage; In the field circuit of electromagnetic coil, be connected to self-healing type electric power polarity throw over switch, after the strength of touching switch disappears, the switch runback disconnects circuit, and this moment, the switch valve body was because the position of magnetic force (also having elastic force during closed channel) effect will remain on the electromagnet energising time (inhale mutually or repel each other).

The utility model compared with the prior art, following advantage is arranged: owing to adopt electromagnet to inhale mutually or the mode of repelling each other changes the position of switch valve body with permanent magnet, thereby the switching of control gas circuit, and energising only is moment, state when outage back switch valve body still can remain on energising, therefore the electricity consumption of equipment amount is little, energy-conservation; The equipment normality is the operating mode that is in outage, and electrical apparatus element are not fragile, so prolonged working life; But self-healing type switch manually operated type is automatic type also, is convenient to remote control; Be provided with rubber valve, seal rubber pad, prevent gas leakage.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1,2 be respectively thixotroping bistable switch valve in the present embodiment in off position, the structure sectional view of opening state;

Fig. 3 is a present embodiment coil magnetization circuit diagram.

1-iron sleeve among the figure, 2-coil rack, 3-iron core, 4-permanent magnet, 5-coil, 6-chassis, 7-seal rubber pad, 8-spring, 9-switch valve body, 10-rubber valve, 11-valve block, 12-sunk screw, 13-half round-head screw, 14-packing ring, 15-housing, K-self-healing type switch, A-gas-entered passageway, B-exhaust passage.

In the present embodiment, unshakable in one's determination 3 adopt electric steel, and permanent magnet 4 is used permanent-magnet steel, and housing 15 adopts brass tube, and power supply can adopt battery, and permanent magnet 4 contiguous unshakable in one's determination 3 ends are the N utmost point as shown in Figure 1, 2.

The structure of air-valve device is to be provided with on the valve block 11 of inlet and outlet passage A, B to be connected with chassis 6, between valve block 11 and chassis 6 seal rubber pad 7 is arranged, and chassis 6, seal rubber pad 7 are fixed on the valve block 11 through sunk screw 12; Switch valve body 9 is positioned at above the valve port of valve block 11 exhaust passage B, gas-entered passageway A is positioned at a side of switch valve body 9, when the permanent magnet on the switch valve body 94 is inhaled with the electromagnetism iron phase, inlet and outlet passage A, B interconnect, in the bottom of switch valve body 9 rubber valve 10 is housed, permanent magnet 4 is equipped with at the top, housing 15 is enclosed within the outside of switch valve body 9, its bottom is connected on the chassis 6, with flanging process the two is fastenedly connected, the upper end of spring 8 withstands on the bottom of housing 15, and the lower end is against on the outstanding edge, the bottom surface of switch valve body 9; The structure of electromagnet is, unshakable in one's determination 3 with switch valve body 9 be coaxial direction, when switch valve body 9 is positioned at position with inlet and outlet passage A, B sealing, unshakable in one's determination 3 and switch valve body 9 between have spacing in vain, iron core 3, the periphery skeleton 2, coil 5 are set; Iron sleeve 1 covers on ragged edge; Be fastened on unshakable in one's determination 3 through packing ring 14, screw 13, housing 15 is stretched in unshakable in one's determination 3 bottom, is integral for interference fit between the two.Insert three manual push-key K of self-healing type in the field circuit of coil 5, when push-key K pulls position to contact a1, c, electric current flows to the f end by the e end of coil 5, otherwise when push-key K pulls position to contact a2, b, electric current flows to the e end by the f end of coil 5, thereby the electromagnetic field pole orientation that produces in unshakable in one's determination 3 also changes thereupon.When unshakable in one's determination 3 two ends polarity adjacent with permanent magnet 4 are different, the two inhales (Fig. 2) mutually, switch valve body 9 is together with moving on the rubber valve 10 under magnetic force, gas circuit is open-minded because push-key is self-healing type, though when external force disappear its reset after coil blackout, but because of permanent magnet 4 has been adsorbed on unshakable in one's determination 3, and magnetic field is very strong, although has the rebounding force of spring 8 that switch valve body 9 is moved down, so gas circuit keeps open-minded; In like manner, the two repels each other when identical with permanent magnet 4 abutting end polarity when unshakable in one's determination 3, and switch valve body 9 moves down under magnetic force and elastic force acting in conjunction, then close port cut-out gas circuit (Fig. 1).

The self-healing type switch of coil magnetization circuit also can adopt autocontrol mode.The empty switch valve of this thixotroping bistable electro can be used for managing in resident's the gaspipe line, also can replace common electric pneumatic valve.

Claims

1, the empty switch valve of a kind of thixotroping bistable electro is made of electromagnetic system and air-valve device two-part, electromagnetic system comprises coil, skeleton, iron core and field circuit, the air-valve device comprises the switch valve body, valve block and advancing, the exhaust passage, it is characterized in that: the top of switch valve body is provided with permanent magnet, the bottom is provided with spring and seal rubber pad, the electromagnet that iron core constituted that is wound with coil and the switch valve body that has permanent magnet be on the throne put corresponding, when the polarity of the polarity of electromagnet and permanent magnet on the other side is identical, the switch valve body is positioned at and will advances, the position of exhaust passage sealing, otherwise when the polarity of the polarity of electromagnet and permanent magnet was different, the switch valve body was positioned at and will advances, the position that open the exhaust passage; In the field circuit of electromagnetic coil, be connected to self-healing type electric power polarity throw over switch.

2, the empty switch valve of thixotroping bistable electro according to claim 1, it is characterized in that: the structure of air-valve device is for being provided with into, exhaust passage (A, B) be connected with chassis (6) on the valve block (11), between valve block (11) and chassis (6), seal rubber pad (7) is arranged, switch valve body (9) is positioned at above the valve port of valve block (11) exhaust passage (B), gas-entered passageway (A) is positioned at a side of switch valve body (9), when the permanent magnet (4) on the switch valve body (9) is inhaled with the electromagnetism iron phase, advance, exhaust passage (A, B) interconnect, in the bottom of switch valve body (9) rubber valve (10) is housed, permanent magnet (4) is equipped with at the top, housing (15) is enclosed within the outside of switch valve body (9), its bottom connects by on chassis (8), the upper end of spring (8) withstands on the bottom of housing (15), and the lower end is against on the outstanding edge, the bottom surface of switch valve valve body (9); The structure of electromagnet is, (3) unshakable in one's determination are coaxial direction with switch valve body (9), when switch valve body (9) is positioned at the position that inlet and outlet passage (A, B) is sealed, have spacing in vain between (3) unshakable in one's determination and the switch valve body (9), the periphery of (3) unshakable in one's determination is provided with skeleton (2), coil (5), and iron sleeve (1) covers on ragged edge, is fastened on the iron core (3) through packing ring (14), screw (13), housing (15) is stretched in the bottom of (3) unshakable in one's determination, is integral for interference fit between the two.