CN211975976U - Duplex electromagnetic valve - Google Patents

Abstract

The utility model discloses a duplex solenoid valve, which comprises a valve body, a first pilot head and a second pilot head, wherein the first pilot head and the second pilot head are arranged on the valve body; a first valve cavity and a second valve cavity are formed in the valve body, a first valve rod is arranged in the first valve cavity, and a first spring is arranged between the first valve rod and the first end cover in a propping manner; a second valve rod is arranged in the second valve cavity, and a second spring is arranged between the second valve rod and the second end cover in a propping manner; the valve body is provided with an air inlet, an air outlet, a first working port and a second working port, the air inlet is communicated with the first valve cavity and the second valve cavity, the first valve cavity is communicated with the second valve cavity through a first passage, the first working port is communicated with the first passage, the second valve cavity is communicated with the second working port, and the air outlet is communicated with the second valve cavity through an air exhaust passage; a first spacer bush is arranged in the first valve cavity, and a second spacer bush is arranged in the second valve cavity. The utility model discloses simple structure is compact, convenient to use is nimble, the high advantage of gas tightness have been possessed.

Description

Duplex electromagnetic valve

Technical Field

The utility model relates to a solenoid valve technical field, in particular to pair solenoid valve.

Background

The electromagnetic valve is an industrial device controlled by electromagnetism, is an automatic basic element for controlling fluid, belongs to an actuator, and is not limited to hydraulic pressure and pneumatic pressure. Used in industrial control systems to regulate the direction, flow, velocity and other parameters of a medium. The existing bus doors of buses and long-distance buses generally adopt pneumatic or hydraulic doors, the opening and closing of the bus doors are controlled by a bus door opening and closing system, the system mainly comprises a plurality of monomer electromagnetic valves which are connected with one another, although the opening and closing process of the bus doors is more convenient and faster, the electromagnetic valves are more, the occupied space is larger, the installation is troublesome, and the sealing performance is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure is compact, convenient to use is nimble, the high pair solenoid valve of gas tightness to prior art's defect and not enough.

The utility model provides a technical scheme that its technical problem adopted is: a duplex electromagnetic valve comprises a valve body, a first guide head and a second guide head, wherein the first guide head and the second guide head are arranged on the valve body in parallel; the valve body, the first pilot head and the first end cover are matched to form a first valve cavity, a first valve rod is arranged in the first valve cavity in a sliding mode, a first spring is arranged between the first valve rod and the first end cover in a supporting mode, and the first spring always tends to push the first valve rod to the first pilot head; the valve body, the second pilot head and the second end cover are matched to form a second valve cavity, a second valve rod is arranged in the second valve cavity in a sliding mode, a second spring is arranged between the second valve rod and the second end cover in a supporting mode, and the second spring always tends to push the second valve rod to the second pilot head; the valve body is provided with an air inlet, an air outlet, a first working port and a second working port, the air inlet is respectively communicated with the first valve cavity and the second valve cavity through an air inlet passage, the first valve cavity is communicated with the second valve cavity through a first passage, the first working port is communicated with the first passage, the second valve cavity is communicated with the second working port, and the air outlet is communicated with the second valve cavity through an air outlet passage; the first valve cavity is internally provided with a first spacer bush corresponding to the air inlet channel, the first spacer bush is provided with a first through hole communicated with an air path, the second valve cavity is internally provided with a second spacer bush corresponding to the air inlet channel, and the second spacer bush is provided with a second through hole communicated with the air path.

Furthermore, a first control port and a second control port are further formed in the valve body, the first control port is communicated with the air inlet channel through a first throttling channel, and a first throttling valve used for controlling the flow of the air inlet channel is installed in the first throttling channel; the second control port is communicated with the exhaust passage through a second throttling passage, and a second throttling valve used for controlling the flow of the exhaust passage is installed in the second throttling passage.

Further, the first throttle valve is in threaded connection with the first throttle passage, and the second throttle valve is in threaded connection with the second throttle passage.

Furthermore, the first spacer bushes are provided with a plurality of first sealing rings, and the first sealing rings are arranged among the first spacer bushes; the second spacer sleeves are provided with a plurality of second sealing rings, and the second sealing rings are arranged among the second spacer sleeves.

The utility model has the advantages that: the valve body is provided with an air inlet, an air outlet, a first working port and a second working port, the air inlet is respectively communicated with the first valve cavity and the second valve cavity through an air inlet passage, the first valve cavity is communicated with the second valve cavity through a first passage, the first working port is communicated with the first passage, the second valve cavity is communicated with the second working port, and the air outlet is communicated with the second valve cavity through an air outlet passage; be equipped with the first spacer corresponding with inlet channel in the first valve pocket, first spacer is equipped with the first through-hole of intercommunication gas circuit, be equipped with the second spacer corresponding with inlet channel in the second valve pocket, the second spacer is equipped with the second through-hole of intercommunication gas circuit for the valve body possesses the function of two kinds of valves simultaneously, has reduced the pipeline that needs the connection promptly, has saved installation space, has improved the gas tightness of valve body, makes the installation more convenient, and it is more nimble changeable to use.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is the overall sectional schematic diagram of the utility model.

Fig. 3 is a schematic structural diagram of the valve body of the present invention.

Fig. 4 is a schematic front view of the valve body of the present invention.

Fig. 5 is a schematic sectional view of a-a in fig. 4.

Fig. 6 is a schematic sectional view of B-B in fig. 4.

Fig. 7 is a schematic sectional view of C-C in fig. 4.

Fig. 8 is a schematic sectional view of D-D in fig. 4.

Fig. 9 is a schematic sectional view of E-E in fig. 5.

Shown in the figure: 1-a valve body; 1.1-gas inlet; 1.2-exhaust port; 1.3-a first working port; 1.4-a second working port; 1.5-an intake passage; 1.6-first channel; 1.7-exhaust channel; 1.8-first control port; 1.9-a second control port; 1.10-a first throttling channel; 1.11-a second throttling channel; 2-a first pilot head; 3-a second pilot head; 4-a first end cap; 5-a second end cap; 6-a first valve cavity; 7-a first valve stem; 8-a first spring; 9-a second valve cavity; 10-a second valve stem; 11-a second spring; 12-a first spacer; 12.1 — a first via; 13-a second spacer; 13.1-a second via; 14-a first throttle valve; 15-a second throttle valve; 16-a first sealing ring; 17-second sealing ring.

Detailed Description

For a more intuitive and complete understanding of the technical solution of the present invention, the following non-limiting characteristic description is now performed by combining the drawings of the present invention:

as shown in fig. 1 to 9, a duplex solenoid valve includes a valve body 1, a first pilot head 2 and a second pilot head 3 which are arranged on the valve body 1 in parallel, and a first end cap 4 and a second end cap 5 are arranged on the valve body 1; the valve body 1, the first guide head 2 and the first end cover 4 are matched to form a first valve cavity 6, a first valve rod 7 is arranged in the first valve cavity 6 in a sliding mode, a first spring 8 is arranged between the first valve rod 7 and the first end cover 4 in a supporting mode, and the first spring 8 always tends to push the first valve rod 7 to the first guide head 2; the valve body 1, the second pilot head 3 and the second end cover 5 are matched to form a second valve cavity 9, a second valve rod 10 is arranged in the second valve cavity 9 in a sliding mode, a second spring 11 is arranged between the second valve rod 10 and the second end cover 5 in a supporting mode, and the second spring 11 always tends to push the second valve rod 10 to the second pilot head 3; the valve body 1 is provided with an air inlet 1.1, an air outlet 1.2, a first working port 1.3 and a second working port 1.4, the air inlet 1.1 is respectively communicated with a first valve cavity 6 and a second valve cavity 9 through an air inlet passage 1.5, the first valve cavity 6 is communicated with the second valve cavity 9 through a first passage 1.6, the first working port 1.3 is communicated with the first passage 1.6, the second valve cavity 9 is communicated with the second working port 1.4, and the air outlet 1.2 is communicated with the second valve cavity 9 through an air outlet passage 1.7; a first spacer 12 corresponding to the air inlet channel 1.5 is arranged in the first valve cavity 6, a first through hole 12.1 communicated with the air channel is formed in the first spacer 12, a second spacer 13 corresponding to the air inlet channel 1.5 is arranged in the second valve cavity 9, and a second through hole 13.1 communicated with the air channel is formed in the second spacer 13.

Specifically, the specific structure of the first pilot head 2 and the second pilot head 3 may refer to a vacuum pumping valve disclosed in chinese patent application No. CN201520722625.9, and is not described herein again; the first guide head 2, the first valve rod 7, the first spacer bush 12 and the valve body 1 are matched to form a two-position two-way valve; in the same way, the second pilot valve 3, the second valve rod 11, the second spacer sleeve 13 and the valve body 1 are matched to form a two-position four-way valve.

The valve body 1 is also provided with a first control port 1.8 and a second control port 1.9, the first control port 1.8 is communicated with the air inlet channel 1.5 through a first throttling channel 1.10, and a first throttling valve 14 for controlling the flow of the air inlet channel 1.5 is arranged in the first throttling channel 1.10; the second control port 1.9 is communicated with the exhaust passage 1.7 through a second throttling passage 1.11, and a second throttle valve 15 for controlling the flow of the exhaust passage 1.7 is installed in the second throttling passage 1.11; in particular use, the opening of the intake passage 1.5 is controlled by adjusting the first throttle valve 14, thereby controlling the rate of gas admission; the opening degree of the exhaust channel 1.7 is controlled by adjusting the second throttle valve 15, so that the exhaust rate of gas is controlled, the solenoid valve is adjusted to always ensure a better state, and the operation is more stable and reliable.

The first throttle 14 is screwed into the first throttle channel 1.10, and the second throttle 15 is screwed into the second throttle channel 1.11.

The first spacer bushes 12 are provided with a plurality of first sealing rings 16, and the first sealing rings 16 are arranged among the first spacer bushes 12, so that the first valve rod 7 can slide relative to the first spacer bushes 12 under the driving of the first guide head 2, and the sealing performance among the first spacer bushes 12 is kept during movement; the second spacer 13 is provided with a plurality of second spacer rings, and a second sealing ring 17 is arranged between the second spacer rings 13, so that the second valve rod 10 can slide relative to the second spacer rings 13 under the driving of the second guide head 3, and the sealing performance between the second spacer rings 13 can be kept during movement.

The utility model discloses a concrete theory of operation: normally, cylinders in which the first working port 1.3 and the second working port 1.4 work are correspondingly connected, high-pressure gas is introduced from the gas inlet 1.1, the gas enters the first valve cavity 6 and the second valve cavity 9 from the gas inlet channel 1.5, when the first guide head 2 is electrified, the first valve rod 7 is adsorbed and overcomes the elasticity of the first spring 8, the first valve rod 7 slides relative to the first spacer 12, so that the flowing direction of the gas is changed, and the gas flows out from the first working port 1.3 through the first through hole 12.1; similarly, when the second pilot head 3 is powered on, the second valve rod 10 is adsorbed and overcomes the elastic force of the second spring 11, the second valve rod 10 slides relative to the second spacer 13, so that the gas flow direction is changed, and the gas can flow out from the second working port 1.4 through the second through hole 13.1 and then change the gas flow direction by controlling the first pilot head 2 and the second pilot head 3.

The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.

Claims (4)

1. A duplex solenoid valve characterized in that: the valve comprises a valve body (1), and a first guide head (2) and a second guide head (3) which are arranged on the valve body (1) in parallel, wherein a first end cover (4) and a second end cover (5) are arranged on the upper cover of the valve body (1);

the valve body (1), the first pilot head (2) and the first end cover (4) are matched to form a first valve cavity (6), a first valve rod (7) is arranged in the first valve cavity (6) in a sliding mode, a first spring (8) is arranged between the first valve rod (7) and the first end cover (4) in a supporting mode, and the first spring (8) always tends to push the first valve rod (7) to the first pilot head (2);

the valve body (1), the second pilot head (3) and the second end cover (5) are matched to form a second valve cavity (9), a second valve rod (10) is arranged in the second valve cavity (9) in a sliding mode, a second spring (11) is arranged between the second valve rod (10) and the second end cover (5) in a supporting mode, and the second spring (11) always tends to push the second valve rod (10) to the second pilot head (3);

the valve body (1) is provided with an air inlet (1.1), an air outlet (1.2), a first working port (1.3) and a second working port (1.4), the air inlet (1.1) is respectively communicated with the first valve cavity (6) and the second valve cavity (9) through an air inlet channel (1.5), the first valve cavity (6) is communicated with the second valve cavity (9) through a first channel (1.6), the first working port (1.3) is communicated with the first channel (1.6), the second valve cavity (9) is communicated with the second working port (1.4), and the air outlet (1.2) is communicated with the second valve cavity (9) through an air outlet channel (1.7);

the gas inlet valve is characterized in that a first spacer bush (12) corresponding to the gas inlet channel (1.5) is arranged in the first valve cavity (6), a first through hole (12.1) communicated with a gas circuit is formed in the first spacer bush (12), a second spacer bush (13) corresponding to the gas inlet channel (1.5) is arranged in the second valve cavity (9), and a second through hole (13.1) communicated with the gas circuit is formed in the second spacer bush (13).

2. A twin solenoid valve as defined in claim 1 wherein: the valve body (1) is further provided with a first control port (1.8) and a second control port (1.9), the first control port (1.8) is communicated with the air inlet channel (1.5) through a first throttling channel (1.10), and a first throttling valve (14) for controlling the flow of the air inlet channel (1.5) is installed in the first throttling channel (1.10); the second control port (1.9) is communicated with the exhaust passage (1.7) through a second throttling passage (1.11), and a second throttle valve (15) used for controlling the flow of the exhaust passage (1.7) is installed in the second throttling passage (1.11).

3. A twin solenoid valve as defined in claim 2 wherein: the first throttle valve (14) is in threaded connection with the first throttle channel (1.10), and the second throttle valve (15) is in threaded connection with the second throttle channel (1.11).

4. A twin solenoid valve as defined in claim 3 wherein: a plurality of first spacer bushes (12) are arranged, and first sealing rings (16) are arranged among the first spacer bushes (12); the second spacer bushes (13) are provided with a plurality of second sealing rings (17) between the second spacer bushes (13).

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