CN218325541U - Two-position three-way valve of gas-electricity double control - Google Patents

Abstract

The utility model relates to the technical field of valve bodies, in particular to two-position three-way valve of gas-electricity double control, including valve body, upper valve gap and lower valve gap, the upper valve gap with all be provided with control assembly on the lower valve gap, control assembly includes solenoid, quiet iron core, movable iron core and sealed chock plug, be provided with the air flue on the quiet iron core, the utility model discloses realize solenoid electric control through solenoid, quiet iron core and movable iron core, secondly let in control gas in the air flue on the quiet iron core, control gas enters into the clearance between quiet iron core and the movable iron core, promotes movable iron core and keeps away from quiet iron core to seal the passageway, can realize pneumatic control, selects single solenoid electric control or pneumatic control according to the size of pressure in the system, or solenoid electric and pneumatic combined action carries out dual control; the working reliability and the working pressure range of the two-position three-way valve are greatly improved.

Description

Gas-electric double-control two-position three-way valve

Technical Field

The utility model relates to a valve body technical field, in particular to two-position three-way valve of gas-electricity two accuses.

Background

The two-position three-way electromagnetic valve is a pneumatic element product with extremely wide application range. However, the existing solenoid valves are usually in a single control mode when opened and closed: the starting button is pressed to enable the electromagnetic coil to be electrified, the static iron core of the pilot head is magnetized by the electromagnetic field generated by the electromagnetic coil, the static iron core attracts the movable iron core to move, the valve port air hole blocked by the sealing element on the original passive iron core is opened or closed, namely, the gas-liquid channel can be opened or closed, and the operation of the valve is realized.

SUMMERY OF THE UTILITY MODEL

To the current situation of above-mentioned prior art, the utility model aims to solve the technical problem that a two-position three-way valve of gas-electricity two accuse that operational reliability is high, operating pressure wide range and long service life is provided.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a gas-electric double-control two-position three-way valve comprises a valve body, an upper valve cover and a lower valve cover, wherein the lower valve cover and the upper valve cover are fixedly connected with the valve body, control assemblies are arranged on the upper valve cover and the lower valve cover and are respectively in threaded connection with the upper valve cover and the lower valve cover, each control assembly comprises an electromagnetic coil, a static iron core, a movable iron core and a sealing plug head, each sealing plug head is fixedly connected with the movable iron core, the movable iron core is located below the static iron core, the static iron core is sleeved in the electromagnetic coil, an air channel is arranged on the static iron core, an inlet, a first valve port, a second valve port, a third valve port, a fourth valve port, a fifth valve port, a sixth valve port, a seventh valve port, a first outlet and a second outlet are arranged in the valve body, the left end of the first valve port is communicated with the inlet, the upper end of the first valve port is communicated with the second valve port, the second valve port is located above the third valve port, the third valve port is communicated with the fourth valve port, the fourth valve port is communicated with the first outlet, the lower end of the first valve port is communicated with the fifth valve port, the sixth valve port is communicated with the sixth valve port, and the seventh valve port is communicated with the seventh valve port.

Preferably, a buffer spring, a first sealing ring and a second sealing ring are arranged on the movable iron core, the second sealing ring is located below the first sealing ring, the first sealing ring is located below the buffer spring, and the buffer spring, the first sealing ring and the second sealing ring are all sleeved on the movable iron core.

Preferably, the first sealing ring and the second sealing ring are both rubber sealing rings.

Preferably, the sealing plug is a rubber sealing plug.

Compared with the prior art, the utility model has the advantages of: the utility model discloses an go up the valve gap with all be provided with control assembly on the valve gap down, control assembly respectively with go up the valve gap with valve gap threaded connection down, control assembly includes solenoid, quiet iron core, moves iron core and sealed chock plug, sealed chock plug and move iron core fixed connection, it is located quiet iron core below to move the iron core, quiet iron core cup joints in solenoid, be provided with the air flue on the quiet iron core, at first solenoid, quiet iron core and move the iron core and can realize solenoid electric control, secondly, let in control gas in the air flue on the quiet iron core, control gas enters into quiet iron core and moves the clearance between the iron core, promotes to move the iron core and keeps away from quiet iron core and seal up the passageway, can realize pneumatic control. When the electromagnetic coil has no fault, single electromagnetic control or pneumatic control can be selected according to the pressure in the system, or the electromagnetic control and the pneumatic control have the combined action to carry out double control; when the electromagnetic coil is suddenly powered off, the pneumatic control can be used as a replacement control system to ensure the normal work of the two-position three-way valve; when high pressure occurs in the pipeline system and electromagnetic control power is deficient, pneumatic control can play a role in assistance; consequently, the operational reliability of two-position three-way valve has been improved greatly, and make the safe operating pressure of two-position three-way valve higher than general two-position three-way valve, this will make the safe operating pressure scope of two-position three-way valve wider, its advantage is that operational reliability is high, the operating pressure scope is wide, and be provided with buffer spring on moving the iron core, buffer spring can avoid moving the iron core and take place strong collision with quiet iron core, can play the effect of fine protection moving iron core and quiet iron core, the life of extension valve, its advantage is long service life.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Wherein: 1-a valve body; 2-upper valve cover; 3-lower valve cover; 4-a control component; 5-an inlet; 6-first valve port; 7-a second valve port; 8-a third valve port; 9-fourth valve port; 10-fifth valve port; 11-sixth valve port; 12-seventh valve port; 13-a first outlet; 14-a second outlet; 4-1-electromagnetic coil; 4-2-stationary core; 4-3-a movable iron core; 4-4-sealing the stopper; 4-5-airway; 4-6-a buffer spring; 4-7-a first seal ring; 4-8-second sealing ring.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

As shown in fig. 1, the gas-electric double-control two-position three-way valve comprises a valve body 1, an upper valve cover 2 and a lower valve cover 3, wherein the lower valve cover 3 and the upper valve cover 2 are both fixedly connected with the valve body 1, the upper valve cover 2 and the lower valve cover 3 are both provided with control components 4, the control components 4 are respectively in threaded connection with the upper valve cover 2 and the lower valve cover 3, the control components 4 comprise electromagnetic coils 4-1, static iron cores 4-2, movable iron cores 4-3 and sealing plugs 4-4, the sealing plugs 4-4 are fixedly connected with the movable iron cores 4-3, the movable iron cores 4-3 are positioned below the static iron cores 4-2, the static iron cores 4-2 are sleeved in the electromagnetic coils 4-1, the static iron cores 4-2 are provided with gas passages 4-5, an inlet 5, a first valve port 6, a second valve port 7, a third valve port 8, a fourth valve port 9, a fifth valve port 10, a sixth valve port 11, a seventh valve port 12, a first outlet 13 and a second outlet 14 are arranged in the valve body 1, the left end of the first valve port 6 is communicated with the inlet 5, the upper end of the first valve port 6 is communicated with the second valve port 7, the second valve port 7 is positioned above the third valve port 8, the third valve port 8 is communicated with the fourth valve port 9, the fourth valve port 9 is communicated with the first outlet 13, the lower end of the first valve port 6 is communicated with the fifth valve port 10, the fifth valve port 10 is communicated with the sixth valve port 11, the sixth valve port 11 is communicated with the seventh valve port 12, the seventh valve port 12 is communicated with the second outlet 14, a buffer spring 4-6, a first sealing ring 4-7 and a second sealing ring 4-8 are arranged on the movable iron core 4-3, the second sealing ring 4-8 is located below the first sealing ring 4-7, the first sealing ring 4-7 is located below the buffer spring 4-6, the first sealing ring 4-7 and the second sealing ring 4-8 are all sleeved on the movable iron core 4-3, the first sealing ring 4-7 and the second sealing ring 4-8 are rubber sealing rings, and the sealing plug 4-4 is a rubber sealing plug.

The working process of the gas-electric double-control two-position three-way valve is as follows: the pneumatic-electric double-control two-position three-way valve is connected into a pipeline system, when a required medium flows out from the first outlet, the control assembly on the upper valve cover is controlled, after the electromagnetic coil is electrified, the static iron core generates magnetic force to suck the movable iron core upwards, the sealing plug on the movable iron core moves upwards to communicate the second valve port with the third valve port, the medium sequentially passes through the first valve port, the second valve port, the third valve port, the fourth valve port and the first outlet through the inlet and finally flows out from the first outlet, and meanwhile, the movable iron core in the control assembly on the lower valve cover is controlled to drive the sealing plug to move upwards to block channels of the fifth valve port and the sixth valve port. When the pressure of the medium in the pipeline rises, control gas can be introduced into the control group assembly of the lower valve cover, the control gas pushes the iron core to press the sixth valve port, and at the moment, electromagnetic control and pneumatic control simultaneously act to seal the sixth valve port and ensure that the medium flows out from the first outlet; when the electromagnetic coil on the lower valve cover fails, the air channel in the control group assembly of the lower valve cover can still ensure that the sixth valve port is sealed. When a medium needs to flow out of the second outlet, the control assembly on the lower valve cover is controlled, so that the static iron core generates magnetic force to suck the movable iron core downwards, the sealing plug head on the movable iron core moves downwards to communicate the fifth valve port with the sixth valve port, the medium sequentially passes through the first valve port, the fifth valve port, the sixth valve port, the seventh valve port and the second outlet through the inlet and finally flows out of the second outlet, and meanwhile, the movable iron core in the control assembly on the upper valve cover is controlled to drive the sealing plug head to move downwards to plug the channels of the second valve port and the third valve port. When the pressure of the medium in the pipeline rises, control gas can be introduced into the control group assembly of the upper valve cover, the control gas pushes the movable iron core to press the third valve port, and at the moment, electromagnetic control and pneumatic control simultaneously act to seal the third valve port and ensure that the medium flows out from the second outlet; when the electromagnetic coil in the control assembly on the upper valve cover fails, the control air passage in the control assembly on the upper valve cover can still ensure that the third valve opening is sealed.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (4)

1. A gas-electric double-control two-position three-way valve comprises a valve body (1), an upper valve cover (2) and a lower valve cover (3), wherein the lower valve cover (3) and the upper valve cover (2) are fixedly connected with the valve body (1), the upper valve cover (2) and the lower valve cover (3) are respectively provided with a control assembly (4), the control assembly (4) is respectively in threaded connection with the upper valve cover (2) and the lower valve cover (3), the gas-electric double-control two-position three-way valve is characterized in that the control assembly (4) comprises an electromagnetic coil (4-1), a static iron core (4-2), a movable iron core (4-3) and a sealing plug (4-4), the sealing plug (4-4) is fixedly connected with the movable iron core (4-3), the movable iron core (4-3) is positioned below the static iron core (4-2), the static iron core (4-2) is sleeved in the electromagnetic coil (4-1), the static iron core (4-2) is provided with an air passage (4-5), an inlet (5) of the valve body (1), a first valve port (6), a second valve port (7), a sixth valve port (9), a third valve port (10) and a fifth valve port (12) and a fifth valve port (13), the left end of the first valve port (6) is communicated with the inlet (5), the upper end of the first valve port (6) is communicated with the second valve port (7), the second valve port (7) is positioned above the third valve port (8), the third valve port (8) is communicated with the fourth valve port (9), the fourth valve port (9) is communicated with the first outlet (13), the lower end of the first valve port (6) is communicated with the fifth valve port (10), the fifth valve port (10) is communicated with the sixth valve port (11), the sixth valve port (11) is communicated with the seventh valve port (12), and the seventh valve port (12) is communicated with the second outlet (14).

2. The gas-electric double-control two-position three-way valve according to claim 1, wherein a buffer spring (4-6), a first seal ring (4-7) and a second seal ring (4-8) are arranged on the movable iron core (4-3), the second seal ring (4-8) is positioned below the first seal ring (4-7), the first seal ring (4-7) is positioned below the buffer spring (4-6), and the buffer spring (4-6), the first seal ring (4-7) and the second seal ring (4-8) are all sleeved on the movable iron core (4-3).

3. An electro-pneumatic two-position three-way valve according to claim 2, wherein the first sealing rings (4-7) and the second sealing rings (4-8) are rubber sealing rings.

4. An electro-pneumatic two-position, three-way valve according to claim 1, characterised in that the sealing plugs (4-4) are rubber sealing plugs.

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