CN210661420U

CN210661420U - Electromagnetic valve

Info

Publication number: CN210661420U
Application number: CN201921174776.XU
Authority: CN
Inventors: 粟洪涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-06-02
Anticipated expiration: 2029-07-24

Abstract

The utility model relates to the technical field of valves. A solenoid valve comprises a valve, a solenoid valve component, a piston component and a gas pipe joint for connecting high-pressure gas, wherein one end of the solenoid valve component is connected with the gas pipe joint, the other end of the solenoid valve component is connected with the piston component through a connecting piece, and the piston component is connected with the valve; the connecting piece comprises a connecting plate, a bolt, a connecting sleeve and a valve core; the connecting plate is provided with a through hole; one end of the connecting sleeve penetrates through the through hole and is arranged in the valve cavity to be connected with the valve body, and the other end of the connecting sleeve is arranged in the groove to be connected with the cylinder seat; the connecting sleeve is provided with a hollow cavity, and a first opening and a second opening are formed on the connecting sleeve; the valve core is arranged in the hollow cavity and can move along the hollow cavity, one end of the valve core is provided with a boss matched with the first opening, and the other end of the valve core is provided with a sealing rubber pad matched with the exhaust port. The utility model discloses can use pneumatics and circular telegram to switch the circulation direction steadily and safely.

Description

Electromagnetic valve

Technical Field

The utility model relates to the technical field of valves, in particular to electromagnetic valve.

Background

The electromagnetic valve is industrial equipment 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 electromagnetic valve can be matched with different circuits to realize expected control, and the accuracy and flexibility of the control can be ensured. In many technical fields, pneumatic solenoid valves are used for controlling the flow of air. In these solenoid valves, a magnetic force is generated by means of a magnet coil and thus triggers the switching process of the valve.

The working process of the existing electromagnetic valve is that air enters an air cavity of a cylinder base after being electrified and is exhausted after being electrified. During the use, if pull out earlier during the outage and be used for providing high-pressure gas's trachea, pneumatic valve pressure is big, because be equipped with the spring in the middle of the former case, the block rubber is connected at the spring both ends, can cause the case to plug up air inlet and gas outlet simultaneously, and the outage condition is still high-pressure closed, brings the risk with safety for the stability of production.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the not enough of prior art, provide an electromagnetic valve, can use pneumatics and circular telegram to switch the circulation direction steadily and safely.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

a solenoid valve comprises a valve, a solenoid valve component, a piston component and a gas pipe joint for connecting high-pressure gas, wherein one end of the solenoid valve component is connected with the gas pipe joint, the other end of the solenoid valve component is connected with the piston component through a connecting piece, and the piston component is connected with the valve;

the electromagnetic valve assembly comprises an electromagnetic head and a valve body; a valve cavity is formed in the valve body and penetrates through the valve body along the extending direction of the valve cavity; the electromagnetic head is fixedly connected with the valve body;

the piston assembly comprises a cylinder base, the upper part of the cylinder base is provided with a groove, the lower part of the cylinder base is provided with an air cavity corresponding to the groove, a plug cover is arranged between the groove and the air cavity, the plug cover is provided with an air inlet and an air outlet, the air inlet is communicated with the air cavity, and the air outlet is communicated with the outside of the cylinder base through an air exhaust channel; the exhaust channel penetrates through the side wall of the groove; a piston is arranged in the air cavity and can move along the length direction of the air cavity, and the piston is connected with a valve;

the connecting piece comprises a connecting plate, a bolt, a connecting sleeve and a valve core; the connecting plate is fixedly connected with the cylinder base through a bolt; the connecting plate is provided with a through hole; one end of the connecting sleeve penetrates through the through hole and is arranged in the valve cavity to be connected with the valve body, and the other end of the connecting sleeve is arranged in the groove to be connected with the cylinder seat; the connecting sleeve is provided with a hollow cavity, and a first opening and a second opening are formed on the connecting sleeve; the radius of the first opening is smaller than that of the first opening; the valve core is arranged in the hollow cavity and can move along the hollow cavity, one end of the valve core is provided with a boss matched with the first opening, and the other end of the valve core is provided with a sealing rubber pad matched with the exhaust port.

Further, the valve comprises a valve body, a valve plate and a valve rod; the valve body is provided with a sealing space for accommodating the valve plate; one end of the valve rod is connected with the piston, and the other end of the valve rod penetrates through the valve body to be connected with the valve plate; the valve rod drives the valve plate to move to realize the opening and closing of the valve.

Furthermore, grooves for gas circulation are formed in two sides of the outer surface of the valve core; the groove is arranged along the length direction of the valve core.

Furthermore, the connecting sleeve is connected with the valve body through threads.

Furthermore, the bottom of the air cavity is provided with a check ring to limit the end part of the piston to move back and forth in the air cavity.

Furthermore, a sealing rubber ring is arranged on the periphery of the second opening of the connecting sleeve.

Further, the height of the boss is 2-3 mm.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

the utility model discloses an electromagnetic valve passes through the one end of case be provided with first opening assorted boss the other end of case be provided with gas vent assorted sealing rubber pad, can avoid pulling out behind the pipe joint case and plug up first opening and gas vent simultaneously, prevent behind the outage still high pressure closed condition take place. The electromagnetic head is electrified, so that the valve core moves along the direction of the first opening of the connecting sleeve, the first opening is blocked by the boss, the sealing rubber pad is not contacted with the exhaust port at the moment, and the gas in the gas cavity is exhausted through the exhaust port; the electromagnetic head is powered off, the valve core moves along the direction of the second opening of the connecting sleeve, the exhaust port is blocked by the sealing rubber gasket, the boss is not in contact with the first opening at the moment, and high-pressure gas flows to the first opening 22 of the connecting sleeve through the gas pipe connector and then flows to the gas inlet from the two sides of the valve core and enters the gas cavity to be inflated.

Drawings

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

Fig. 2 and fig. 3 are schematic cross-sectional views of an electromagnetic valve according to the present invention.

Fig. 4 is a schematic structural diagram of the piston assembly of the present invention.

Fig. 5 is a plan view of the cylinder block of the present invention.

Fig. 6 is a bottom view of the cylinder base of the present invention.

Fig. 7 is a schematic structural diagram of the connector of the present invention.

Wherein, labeled in the figures: 1-a valve; 2-a solenoid valve assembly; 3-a piston assembly; 4-a gas pipe joint; 5-a connector; 6-an electromagnetic head; 7-a valve body; 8-valve cavity; 9-cylinder seat; 10-a groove; 11-an air cavity; 12-a stopper cap; 13-an air inlet; 14-an exhaust port; 15-an exhaust channel; 16-a piston; 17-a connecting plate; 18-bolt; 19-connecting sleeves; 20-a valve core; 21-a hollow cavity; 22-a first opening; 23-a second opening; 24-a boss; 25-sealing rubber gasket; 26-a valve body; 27-a valve plate; 29-a valve stem; 30-a trench; 31-a retainer ring; 32-sealing rubber ring.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "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 description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 6, an electromagnetic valve includes a valve 1, an electromagnetic valve assembly 2, a piston 16 assembly 3, and a gas pipe joint 4 for connecting high-pressure gas, one end of the electromagnetic valve assembly 2 is connected to the gas pipe joint 4, the other end of the electromagnetic valve assembly 2 is connected to the piston 16 assembly 3 through a connecting piece 5, and the piston 16 assembly 3 is connected to the valve 1;

the electromagnetic valve assembly 2 comprises an electromagnetic head 6 and a valve body 7; a valve cavity 8 is formed in the valve body 7, and the valve cavity 8 penetrates through the valve body 7 along the extending direction of the valve cavity 8; the electromagnetic head 6 is fixedly connected with the valve body 7;

referring to fig. 3-6, the piston 16 assembly 3 includes a cylinder base 9, a groove 10 is formed on the upper portion of the cylinder base 9, an air cavity 11 is formed on the lower portion of the cylinder base 9 corresponding to the groove 10, a plug 12 is disposed between the groove 10 and the air cavity 11, an air inlet 13 and an air outlet 14 are disposed on the plug 12, the air inlet 13 is communicated with the air cavity 11, and the air outlet 14 is communicated with the outside of the cylinder base 9 through an air exhaust passage 15; the exhaust passage 15 penetrates through the side wall of the groove 10; a piston 16 is arranged in the air cavity 11, the piston 16 can move along the length direction of the air cavity 11, and a check ring 31 is arranged at the bottom of the air cavity 11 to limit the end part of the piston 16 to move back and forth in the air cavity 11; the piston 16 is connected with the valve 1;

referring to fig. 7, the connecting member 5 includes a connecting plate 17, a bolt 18, a connecting sleeve 19 and a valve core 20; the connecting plate 17 is fixedly connected with the cylinder base 9 through a bolt 18; the connecting plate 17 is provided with a through hole; one end of the connecting sleeve 19 penetrates through the through hole and is arranged in the valve cavity 8 to be connected with the valve body 7, and the other end of the connecting sleeve 19 is arranged in the groove 10 to be connected with the cylinder seat 9; the connecting sleeve 19 is provided with a hollow cavity 21, and a first opening 22 and a second opening 23 are formed on the connecting sleeve 19; the radius of the first opening 22 is smaller than the radius of the first opening 22; the valve core 20 is arranged in the hollow connecting cavity 21 and can move along the hollow cavity 21, one end of the valve core 20 is provided with a boss 24 matched with the first opening 22, the height of the boss 24 is 2-3mm, and the height of the boss 24 is 2mm in the embodiment; the other end of the valve core 20 is provided with a sealing rubber pad 25 matched with the exhaust port 14.

Gaps which are convenient for gas fluid are formed between the two sides of the outer surface of the valve core 20 and the inner wall of the connecting sleeve 19, and grooves 30 for gas circulation are formed in the two sides of the outer surface of the valve core 20 so as to be convenient for inflating the air cavity 11 when the electromagnetic head 6 is powered off; the groove 30 is disposed along the length of the valve core 20.

The utility model discloses an electromagnetic valve is provided with through the one end at case 20 with first opening 22 assorted boss 24, be provided with at the other end of case 20 with 14 assorted sealing rubber pads 25 in the gas vent, can avoid pulling out behind the pipe joint 4 case 20 and plug up first opening 22 and gas vent 14 simultaneously, prevent behind the outage still high pressure closed condition take place, use safety and stability. The electromagnetic head 6 is electrified, so that the valve core 20 moves along the direction of the first opening 22 of the connecting sleeve 19, the first opening 22 is blocked by the boss 24, the sealing rubber gasket 25 is not in contact with the exhaust port 14 at the moment, and the gas in the gas cavity 11 is exhausted through the exhaust port 14; the electromagnetic head 6 is powered off, the valve core 20 is made to move along the direction of the second opening 23 of the connecting sleeve 19, the exhaust port 14 is blocked by the sealing rubber gasket 25, at the moment, the boss 24 is not contacted with the first opening 22, and high-pressure gas flows to the first opening 22 of the connecting sleeve 19 through the air pipe joint 4, flows to the air inlet 13 from the grooves 30 at two sides of the valve core 20 and enters the air cavity 11 for inflation.

The valve 1 of the present invention can be a two-way valve 1 or a three-way valve 1, and in one embodiment, the valve 1 includes a valve body 26, a valve plate 27 and a valve rod 29; the valve body 26 has a sealed space accommodating the valve plate 27; one end of the valve rod 29 is connected with the piston 16, and the other end of the valve rod 29 penetrates through the valve body 26 and is connected with the valve plate 27; the valve rod 29 drives the valve plate 27 to move to realize the opening and closing of the valve 1.

The connecting sleeve 19 is detachably connected with the valve body 7 through threads, so that the assembly of the electromagnetic valve can be conveniently detached, replaced and maintained.

Further, the periphery of the second opening 23 of the connecting sleeve 19 is provided with a sealing rubber ring 32 for sealing connection with the groove 10 to prevent the connecting sleeve 19 from air leakage.

The utility model relates to an electromagnetic valve's application method and theory of operation do: the electromagnetic head 6 is electrified, so that the valve core 20 moves along the direction of the first opening 22 of the connecting sleeve 19, the first opening 22 is blocked by the boss 24, the sealing rubber gasket 25 is not in contact with the exhaust port 14 at the moment, the gas in the gas cavity 11 is exhausted through the exhaust port 14, the pressure in the gas cavity 11 is reduced, the piston 16 is raised, and the valve rod 29 drives the valve plate 27 to move to open the valve 1, as shown in fig. 2; the electromagnetic head 6 is powered off, the valve core 20 is made to move along the direction of the second opening 23 of the connecting sleeve 19, the exhaust port 14 is blocked by the sealing rubber gasket 25, at the moment, the boss 24 is not contacted with the first opening 22, after high-pressure gas flows to the first opening 22 of the connecting sleeve 19 through the air pipe joint 4, the high-pressure gas flows to the air inlet 13 from the grooves 30 at two sides of the valve core 20 and enters the air cavity 11 to be inflated, the pressure in the air cavity 11 rises, the piston 16 descends, and the valve rod 29 drives the valve plate 27 to move to achieve closing of the valve 1, as shown in fig.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims

1. A solenoid valve comprises a valve, a solenoid valve component, a piston component and a gas pipe joint for connecting high-pressure gas, wherein one end of the solenoid valve component is connected with the gas pipe joint, the other end of the solenoid valve component is connected with the piston component through a connecting piece, and the piston component is connected with the valve; the method is characterized in that:

2. A solenoid valve according to claim 1, wherein: the valve comprises a valve body, a valve plate and a valve rod; the valve body is provided with a sealing space for accommodating the valve plate; one end of the valve rod is connected with the piston, and the other end of the valve rod penetrates through the valve body to be connected with the valve plate; the valve rod drives the valve plate to move to realize the opening and closing of the valve.

3. A solenoid valve according to claim 1, wherein: grooves for gas circulation are formed in the two sides of the outer surface of the valve core; the groove is arranged along the length direction of the valve core.

4. A solenoid valve according to claim 1, wherein: the connecting sleeve is connected with the valve body through threads.

5. A solenoid valve according to claim 1, wherein: the bottom of the air cavity is provided with a check ring to limit the end part of the piston to move back and forth in the air cavity.

6. A solenoid valve according to claim 1, wherein: and a sealing rubber ring is arranged on the periphery of the second opening of the connecting sleeve.

7. A solenoid valve according to claim 1, wherein: the height of the boss is 2-3 mm.