CN217784241U

CN217784241U - Normally closed gas-liquid control valve

Info

Publication number: CN217784241U
Application number: CN202221603870.4U
Authority: CN
Inventors: 胡延东; 胡巧利; 王剑锋; 张向卓; 潘泽星
Original assignee: Shaanxi Fast Auto Drive Group Co Ltd
Current assignee: Shaanxi Fast Auto Drive Group Co Ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-11-11
Anticipated expiration: 2032-06-24

Abstract

The utility model provides a normal close formula gas-liquid control valve has mainly solved the problem that current control valve is difficult to satisfy automatic forging equipment high pressure, high frequency and uses. The normally closed gas-liquid control valve comprises a valve body and an actuator, wherein a mixed liquid flow channel is arranged on the valve body, and an inlet and an outlet of the mixed liquid flow channel are both arranged on the outer surface of the valve body; the actuator comprises a piston rod, a cylinder body and a control unit for controlling the piston rod to stretch; one end of the piston rod is inserted into the cylinder body, the other end of the piston rod extends into the mixed liquid flow channel and is matched with the mixed liquid outlet, and the piston rod performs opening and closing of the mixed liquid outlet through telescopic action. The utility model provides a normal close formula gas-liquid control valve can satisfy high pressure, high-frequency service condition, and has the spraying effect of preferred to the mixed liquid that glues thickly, and its simple structure is with low costs simultaneously, can directly reform transform current control valve.

Description

Normally closed gas-liquid control valve

Technical Field

The utility model relates to a normal close formula gas-liquid control valve, the device mainly are applied to in the automatic forging equipment.

Background

In the working process of the full-automatic forging and pressing equipment, the working frequency of the main machine is about 2 ten thousand times every day, and the cooling and the lubrication are very important in order to ensure the service life of a forging die. The mould is lubricated to constitute by the mixed liquid of release agent and water, and this kind of mixed liquid has certain corrosivity, and is comparatively sticky, and in order to satisfy the spraying demand, this kind of mixed liquid has certain pressure just can be used, and current control valve can hardly satisfy this kind of high pressure, high frequency's operating mode.

Therefore, a gas-liquid control valve needs to be designed to meet the requirement of controlling spraying of the mixed solution of the release agent on the full-automatic forging equipment.

SUMMERY OF THE UTILITY MODEL

The utility model provides a normal close formula gas-liquid control valve has mainly solved the problem that current control valve is difficult to satisfy automatic forging equipment high pressure, high frequency and uses.

The concrete technical solution of the utility model is as follows:

the normally closed gas-liquid control valve comprises a valve body and an actuator, wherein a mixed liquid flow channel is arranged on the valve body, and an inlet and an outlet of the mixed liquid flow channel are both arranged on the outer surface of the valve body; the actuator comprises a piston rod, a cylinder body and a control unit for controlling the piston rod to stretch; piston rod one end inserts in the cylinder body, and the other end stretches into in the mixed liquid runner and with mixed liquid export looks adaptation, the piston rod carries out the switching of mixed liquid export through flexible action.

Further, the control unit comprises at least two air inlets arranged on the cylinder body and a spring; the piston rod comprises a piston, a first connecting rod and a second connecting rod, the piston is transversely arranged in the cylinder body and divides the cylinder body into two sealed cavities, the first connecting rod and the second connecting rod are arranged on two sides of the piston in an aligning mode, a spring is sleeved on the outer side of the first connecting rod, and the second connecting rod extends into the mixing flow channel; the two sealed cavities are provided with at least one air inlet. For the setting of the control unit, the scheme is more, the structure form of controlling the movement of the piston rod by utilizing the air pressure to match with the spring is preferred, the structure is relatively simple, and the movement process is more reliable.

Furthermore, an O-shaped sealing ring is arranged between the piston and the inner wall of the cylinder body. The O-shaped sealing ring is additionally arranged, so that the problem of gap pressure relief possibly caused by air pressure action is effectively solved, and the utilization rate of the air pump is effectively improved.

Furthermore, the piston rod is inserted into the corresponding positions of one end in the valve body and the side wall of the cylinder body and the side wall of the valve body and is respectively provided with a C-shaped dustproof ring and a Y-shaped sealing ring. The multi-stage sealing structure avoids the problem of blockage of the movement position of the piston rod caused by backflow of mixed liquid.

Further, mix the runner and be the F type, mix the liquid import and mix the liquid export and all set up in the valve body bottom, keep away from cylinder body one side promptly, still including being used for overhauing and the function mouth of wasing usefulness, the function mouth sets up on the valve body lateral wall, and is provided with the end cap on the function mouth.

The utility model has the advantages of:

1. the utility model provides a normal close formula gas-liquid control valve can satisfy high pressure, high-frequency service condition, and has the spraying effect of preferred to the thick mixed liquid.

2. The utility model provides a normal close formula gas-liquid control valve, simple structure, it is with low costs, can directly reform transform current control valve.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a bottom view of the structure of the present invention;

the drawings are as follows:

1-cylinder body, 2-spring, 3-piston rod, 4-O-shaped sealing ring, 5-O-shaped sealing ring, 6-end cover, 7-C-shaped dustproof ring, 8-Y-shaped sealing ring, 9-plug, 10-valve body seal, 11-sealing ring, 12-valve body, 13-bolt, 31-piston, 32-first connecting rod and 33-second connecting rod.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, specific embodiments accompanied with figures are described in detail below, and it is apparent that the described embodiments are a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Meanwhile, in the description of the present invention, it should be noted that the terms "upper, lower, inner and outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation and operate, and thus, cannot be construed as limiting the present invention. Furthermore, the terms first, second, or third are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The terms "mounted, connected and connected" in the present invention are to be understood broadly, unless otherwise explicitly specified or limited, for example: can be fixedly connected, detachably connected or integrally connected: they may be mechanically, electrically, or directly connected, or indirectly connected through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The following detailed description of the present invention is made in conjunction with the following embodiments:

the normally closed gas-liquid control valve comprises a valve body and an actuator, wherein a mixed liquid flow channel is arranged on the valve body, an inlet and an outlet of the mixed liquid flow channel are both arranged on the outer surface of the valve body, and mixed liquid enters the mixed liquid flow channel through the mixed liquid inlet and then flows out through the mixed liquid outlet; the executor includes piston rod, cylinder body and is used for controlling the flexible control unit of piston rod, and wherein, piston rod one end inserts in the cylinder body, and the other end stretches into in the mixed liquid runner and with mixed liquid export looks adaptation, and the control unit control piston rod carries out concertina movement, carries out the switching of mixed liquid export through flexible action to the switching of mixed liquid in the mixed liquid runner has been controlled. In addition, the cylinder body is composed of an end cover and a cylinder chamber, the end cover is buckled on the cylinder chamber, the cylinder chamber can also be understood as the cylinder body, and the cylinder body is necessarily a relatively closed space, so that the end cover is buckled on the cylinder body, and a closed cavity is formed.

The control unit comprises at least two air inlets arranged on the cylinder body, the number of the air inlets is two in the embodiment, and a spring is additionally arranged; correspondingly, the piston rod comprises a piston, a first connecting rod and a second connecting rod, the piston is transversely arranged in the cylinder body and divides the cylinder body into two sealed cavities, the first connecting rod and the second connecting rod are arranged on two sides of the piston respectively in an aligning mode, a spring is sleeved on the outer side of the first connecting rod, and the second connecting rod extends into the mixing flow channel; both sealed chambers are provided with at least one air inlet, all being provided with an air inlet in this example. In the closed state, the spring is reset, the air inlet of the upper cavity of the cylinder body is ventilated, the piston rod moves downwards integrally, the outlet of the mixed liquid flow channel is sealed, the air inlet of the lower cavity of the cylinder body is ventilated during starting, the lower cavity is sealed relatively, air pressure overcomes the acting force of the spring, the spring is extruded, the piston rod moves upwards integrally, the outlet of the mixed liquid flow channel is opened, and mixed liquid flows out.

An O-shaped sealing ring is arranged between the piston and the inner wall of the cylinder body. The piston rod is inserted into the corresponding positions of one end in the valve body and the side wall of the cylinder body and the side wall of the valve body and is respectively provided with a C-shaped dustproof ring and a Y-shaped sealing ring. Mix the runner and be the F type, mix the liquid import and mix the liquid export and all set up in the valve body bottom, keep away from cylinder body one side promptly, still including being used for overhauing and the function mouth of wasing usefulness, the function mouth sets up on the valve body lateral wall, and is provided with the end cap on the function mouth.

The overall operation of the normally closed gas-liquid control valve is described in detail below:

1. in a conventional state, the normally closed gas-liquid control valve has the advantages that the valve core is always in an extending state under the action of spring force, and the conical surface of the valve core is tightly attached to the sealing conical surface of the valve body, so that low-pressure liquid is prevented from flowing out;

2. when the normally closed gas-liquid control valve works, the spring cavity of the actuator is filled with gas, the liquid is completely blocked and cannot flow out under the double action of the air pressure and the spring force of the piston rod, and the other end of the piston rod is blocked in the working cavity of the valve body under the action of the lip of the Y-shaped sealing ring;

3. when the piston rod cavity of the actuator is filled with air, the piston rod compresses the spring, the control valve is opened, and the liquid flows out. In the normal working process, a small amount of liquid is remained between the actuator and the valve body in order to meet the sealing of the piston rod and the Y-shaped sealing ring, so that a certain pressure relief groove is formed in the valve body, and the sealing is prevented from being damaged by overhigh pressure.

Claims

1. A normally closed gas-liquid control valve is characterized in that: the valve comprises a valve body and an actuator, wherein a mixed liquid flow channel is arranged on the valve body, and an inlet and an outlet of the mixed liquid flow channel are both arranged on the outer surface of the valve body; the actuator comprises a piston rod, a cylinder body and a control unit for controlling the piston rod to stretch; one end of the piston rod is inserted into the cylinder body, the other end of the piston rod extends into the mixed liquid flow channel and is matched with the mixed liquid outlet, and the piston rod performs opening and closing of the mixed liquid outlet through telescopic action.

2. The normally-closed gas-liquid control valve according to claim 1, characterized in that: the control unit comprises at least two air inlets arranged on the cylinder body and a spring; the piston rod comprises a piston, a first connecting rod and a second connecting rod, the piston is transversely arranged in the cylinder body and divides the cylinder body into two sealed cavities, the first connecting rod and the second connecting rod are arranged on two sides of the piston in an aligning way, a spring is sleeved on the outer side of the first connecting rod, and the second connecting rod extends into the mixed flow channel; the two sealed cavities are provided with at least one air inlet.

3. The normally-closed gas-liquid control valve according to claim 2, characterized in that: and an O-shaped sealing ring is arranged between the piston and the inner wall of the cylinder body.

4. The normally-closed gas-liquid control valve according to claim 3, characterized in that: and a C-shaped dustproof ring and a Y-shaped sealing ring are respectively arranged at the corresponding positions of one end of the piston rod inserted into the valve body, the side wall of the cylinder body and the side wall of the valve body.

5. The normally-closed gas-liquid control valve according to any one of claims 1 to 4, characterized in that: the mixed runner is F type, mixed liquid import and mixed liquid export all set up in the valve body bottom, keep away from cylinder body one side promptly, still including being used for overhauing and the function mouth of wasing usefulness, the function mouth sets up on the valve body lateral wall, and is provided with the end cap on the function mouth.