CN219221420U

CN219221420U - Switch solenoid valve

Info

Publication number: CN219221420U
Application number: CN202222043169.8U
Authority: CN
Inventors: 吴涛
Original assignee: Zhongdao Semiconductor Hefei Co ltd
Current assignee: Zhongdao Semiconductor Hefei Co ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2023-06-20
Anticipated expiration: 2032-08-04

Abstract

The utility model discloses a switch electromagnetic valve, which comprises: a valve body having a valve port; a valve cover; a stationary core; a movable iron core; a sleeve; a spring; a seal ring; an electromagnetic coil; an electromagnetic housing; and a split clasp. Moving the movable iron core by energizing the electromagnetic coil; the static iron core and the movable iron core are coaxially arranged and have axial gaps, and the sleeve is inserted into the hole of the valve cover by the opening part of the sleeve; the valve cover is connected with the valve body through threads, and the sealing ring realizes static sealing. The static iron core is connected with the electromagnetic coil through an opening clamping ring. A buffer piece is arranged between the movable iron core and the valve body opening to slow down the preset speed of the movable iron core in the valve opening process, so that the impact force between the movable iron core and the valve body is reduced, and the action noise generated by the movable iron core and the valve body in the impact moment is reduced. Through the technical scheme that this application provided, can solve the switch solenoid valve response time among the prior art slow, the unstable problem of switch.

Description

Switch solenoid valve

Technical Field

The present utility model relates to a switching solenoid valve.

Background

The electromagnetic valve is an electromagnetic control industrial equipment, is an automatic basic element, belongs to an actuator and is used for adjusting the direction, flow, speed and other parameters of a medium in an industrial control system.

The electromagnetic valve is generally provided with a hollow cavity, an air inlet and an air outlet are formed in the hollow cavity, the air inlet and the air outlet are respectively connected with different pipelines, the electromagnetic coil is powered off to control the movement of the movable iron core, and the inlet and the outlet are opened or closed, so that the flow rate, the speed and the like of the air are controlled. When the air inlet is opened, the medium enters the middle chamber along the air inlet, flows through the inside of the valve body along the middle chamber, and is discharged from the air outlet.

Disclosure of Invention

Therefore, the embodiment of the utility model provides a switching electromagnetic valve, which can solve the defects of slow switching-off time and long stabilizing time of the traditional switching electromagnetic valve.

The switch electromagnetic valve is realized by the following technical scheme:

a switch electromagnetic valve comprises a static iron core, a movable iron core, an electromagnetic valve coil, a valve cover, a valve body, a clamping sleeve nut, a clamping seat, a spring, a sealing ring, a sleeve, an electromagnetic shell and an open clamping ring; the electromagnetic shell is fixed with the static iron core through an opening clamping ring; and a sleeve in which the movable core is disposed, wherein the sleeve is inserted into the valve cover hole with an opening portion thereof to be mounted; the valve cover, the sleeve and the valve body are connected by screw threads and sealed by a sealing ring; the clamping sleeve nut and the seat are sleeved on the valve body to form an air inlet and an air inlet; the movable iron core is moved by switching on and off the solenoid valve coil, so that the valve body air passage is opened and closed.

The seal ring is an elastic seal member, and the elastic seal member is arranged around the concave portion of the valve body.

The plunger and the valve chamber side end of the valve body have tapered surfaces that slope from the outer diameter side to the inner diameter side as they go toward the valve chamber side.

The seal unit is an elastic seal member, and an annular groove in which the elastic seal member is disposed is formed in an opening recess of the valve body.

The sleeve, the sealing ring and the movable iron core are coaxial.

When the movable iron core is in a power-off state, the movable iron core moves towards the air port of the valve chamber of the valve body under the action of the elasticity of the spring, so that the movable iron core pushes the air port plug, the valve plug abuts against the valve body to disconnect the passages of the air inlet hole and the air outlet hole, and the air inlet hole and the air outlet hole are cut off; when the movable iron core is in a power-on state, under the action of magnetic force and elasticity generated by the spring, the movable iron core moves towards the direction away from the air chamber of the valve body, so that the valve plug is driven to be away from the air inlet hole and the air outlet hole, and the air flow between the inlet hole and the outlet hole is communicated; because the movable iron core is arranged in the inner cavity of the sleeve, the movable iron core, the static iron core and the sleeve are coaxial, the dimensional tolerance is small, the switch electromagnetic valve can be ensured to operate stably in the process of cutting off gas communication, and the switch electromagnetic valve can operate rapidly in the process of opening the inlet and the outlet.

Drawings

FIG. 1 is a cross-sectional view of a solenoid valve of the present utility model with the solenoid portion in a de-energized state;

the device comprises a fixed iron core 1, a movable iron core 2, a solenoid valve coil 3, a valve cover 4, a valve body 5, a clamping sleeve nut 6, a clamping seat 7, an air outlet 8, an air inlet 9, a spring 10, a sealing ring 11, a sleeve 12, an electromagnetic shell 13 and a snap ring 14. Schematic drawing is cut away.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in FIG. 1, the switch electromagnetic valve can realize the action of the valve core according to an input electrical instruction, thereby controlling the on-off of an air path. The electromagnetic valve has the advantages of simple structure, sensitive action, strong applicability, small friction resistance, good working stability and high reliability, and can meet different application working conditions in an air path system.

As shown in fig. 1, the embodiment of the utility model provides a switch electromagnetic valve, which comprises a static iron core 1, a movable iron core 2, an electromagnetic valve coil 3, a valve cover 4, a valve body 5, a clamping sleeve nut 6, a clamping seat 7, a spring 10, a sealing ring 11, a sleeve 12, an electromagnetic shell 13 and a split snap ring 14.

The valve body 5 is provided with two

air passage interfaces

8 and 9, namely an air outlet and an air inlet, which are used for being connected with other parts of an air passage system to realize the control of the air passage. The valve body 5 is also provided with a valve chamber, a groove and other structures.

The electromagnetic shell 13 is fastened and connected with the static iron core 1 through the opening clamping ring 14, so that the magnetic leakage can be reduced for the main magnetic circuit structure, meanwhile, the protection is provided for the coil 3 and internal parts, and the protection and environmental adaptation performance of the electromagnetic valve are improved.

The electromagnetic valve coil 3 is a power source of the electromagnetic valve, receives a control signal through a coil lead wire, generates electromagnetic force, and realizes the action of the electromagnetic valve. The coil 3 is of a packaging structure, no magnetic conduction component exists in the coil, and the coil can be independently detached and replaced.

The sleeve 12 is inserted into the inside of the valve cap 4 and is brought into close contact with the valve cap by the elastic force of the spring 10, and the valve cap 4 and the valve body 5 are connected by means of threads, so that the sleeve 12 is axially fixed.

An air gap exists between the movable iron core 2 and the static iron core 1 after installation through structural design, the air gap provides a motion stroke space of the movable iron core 2, and meanwhile, the electromagnetic force is determined to a great extent.

The valve body 5 is provided with a gas path which is communicated with the gas outlet 8 and the gas inlet 9; the conduction state of the two ports can be realized by the energization and the de-energization of the electromagnetic valve.

Under the state that the electromagnetic valve is in a power-off state, the movable iron core 2 is positioned at the end part of the air channel inside the valve body 5, rubber on the upper end surface of the movable iron core 2 is contacted with an air inlet in the valve body 5 to seal the air inlet channel, so that the sealing function is realized, and at the moment, the air inlet 9 and the air outlet 8 are disconnected.

Under the power-on state of the electromagnetic valve, the movable iron core 2 moves upwards under the action of electromagnetic force to be in close contact with the static iron core 1, so that the lower sealing surface of the movable iron core 2 is disconnected with the upper valve port of the valve body 5, and the air inlet and the air outlet are communicated at the moment.

As shown in fig. 1, a spring 10 is provided on the upper portion of the movable iron core 2 to push the movable iron core 2 to return when the solenoid valve is de-energized.

By adopting the technical scheme, the utility model provides the switch electromagnetic valve which is provided with the balanced valve core structure, the action voltage is not influenced by the input air pressure, the electromagnetic valve is also provided with the pressure selecting function, the air pressure can be input from two ports at the same time, and the output of the required air pressure is realized through the energization and the outage of the electromagnetic valve.

Although embodiments of the present utility model have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the utility model, and such modifications and variations fall within the scope of the utility model as defined by the appended claims.

Claims

1. An on-off solenoid valve, characterized in that: the electromagnetic valve comprises a static iron core (1), a movable iron core (2), an electromagnetic valve coil (3), a valve cover (4), a valve body (5), a clamping sleeve nut (6), a clamping seat (7), a spring (10), a sealing ring (11), a sleeve (12), an electromagnetic shell (13) and an open clamp ring (14); the electromagnetic shell (13) is fixed with the static iron core (1) through an open snap ring (14); and a sleeve (12) in which the movable core is disposed, wherein the sleeve is inserted into a hole of the valve cover (4) with an opening portion thereof to be mounted; the valve cover, the sleeve and the valve body are connected by screw threads and are sealed by a sealing ring (11); the clamping sleeve nut (6) and the clamping seat (7) are sleeved on the valve body to form an air inlet (8) and an air inlet (9); the electromagnetic valve coil (3) is powered on and off to enable the movable iron core (2) to move, so that the valve body air passage is opened and closed.

2. A switching solenoid valve according to claim 1, characterised in that the sealing ring (11) is an elastic sealing member arranged around the recess of the valve body.

3. A switching electromagnetic valve according to claim 1, wherein the valve chamber side end of the plunger (2) and the valve body (5) has a tapered surface inclined from the outer diameter side to the inner diameter side toward the valve chamber side.

4. A switching solenoid valve according to claim 1, wherein the seal ring (11) is an elastic seal member, and an annular groove in which the elastic seal member is disposed is formed in an opening recess of the valve body.

5. A switching solenoid valve according to claim 1, characterised in that said sleeve (12), said sealing ring (11) and said plunger (2) are coaxial.