CN217482104U

CN217482104U - Isolated two-way electromagnetic valve

Info

Publication number: CN217482104U
Application number: CN202221549454.0U
Authority: CN
Inventors: 刘子诚
Original assignee: Ningbo Yongguang Solenoid Valve Manufacturing Co ltd
Current assignee: Ningbo Yongguang Solenoid Valve Manufacturing Co ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-09-23
Anticipated expiration: 2032-06-20

Abstract

The utility model provides an isolated two-way solenoid valve, include: the electromagnetic valve comprises a valve body, an electromagnetic component, a packing block, a magnetism isolating pipe, a magnetism dividing ring and a return spring, wherein the packing block is in linkage connection with the electromagnetic component; the electromagnetic component includes: the magnetic isolation tube is sleeved outside the middle lower part of the movable iron core and outside the static iron core, so that the magnetic leakage phenomenon can be effectively avoided, and the eddy current effect is reduced; the sub-magnetic rings are distributed on the outer periphery of the lower part of the static iron core, and the bounce phenomenon of the alternating current electromagnet can be effectively avoided by utilizing the sub-magnetic rings; the magnetic conduction plate and the magnetism isolating pipe effectively improve the concentration of magnetic flux bundles and guide the direction of the magnetic flux bundles, enable the working magnetic flux bundles to be led to the iron core, reduce magnetic leakage and achieve the effect of isolation.

Description

Isolated two-way electromagnetic valve

Technical Field

The utility model relates to a solenoid valve field especially relates to an isolated two way solenoid valve.

Background

The electromagnetic valve is a common fluid control device in an automatic control circuit, belongs to an actuator, is used for adjusting the direction, flow and other parameters of media such as liquid, gas and the like in an industrial control system, and has the advantages of low cost, small volume, high switching speed, simple wiring, low power consumption, high cost performance, economy and practicability.

When the solenoid valve moves when the coil is electrified, and a changing magnetic field meets conductors such as metal, current can be generated if the metal is a closed wire, and an eddy current effect can be generated if the metal is a non-closed wire, particularly a whole metal, so that an iron core can generate heat, iron loss is caused, and the service life of the solenoid valve is shortened or even damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an isolated two-way solenoid valve, compact structure, sealed effectual, effectively reduce the vortex effect.

In order to realize the purpose, the following technical scheme is adopted: the method comprises the following steps: the electromagnetic valve comprises a valve body, an electromagnetic component, a packing block, a magnetism isolating pipe, a magnetic separating ring and a return spring, wherein the bottom of the valve body is provided with an inlet and an outlet of a medium, the interior of the valve body is provided with the packing block for opening and closing the outlet, and the packing block is in linkage connection with the electromagnetic component; the electromagnetic component includes: the magnetic isolation tube is sleeved outside the middle lower part of the movable iron core and outside the static iron core, and is made of a non-magnetic high-resistance material such as stainless steel, so that the magnetic leakage phenomenon can be effectively avoided, and the eddy current effect is reduced; the sub-magnetic rings are distributed on the outer periphery of the lower part of the static iron core, and the phenomenon of bouncing of the alternating-current electromagnet can be effectively avoided by utilizing the sub-magnetic rings; one end of the reset spring is installed at the bottom of the static iron core, the other end of the reset spring is placed in the movable iron core and connected with the movable iron core, the impact of the movable iron core on the shunt ring is reduced by the reset spring, and the shunt ring is prevented from being damaged.

Furthermore, the static iron core is of a T-shaped structure and is divided into an upper part, a middle part and a lower part, the outer diameters of the middle part and the lower part of the T-shaped structure are smaller than that of the upper part, and the top of the magnetism isolating pipe is abutted against the lower surface of the upper part of the T-shaped structure to prevent the magnetism isolating pipe from shifting; the ring channel has been seted up at quiet iron core middle part, and the ring channel is embedded to have O type circle, and O type circle has effectively increased the leakproofness between quiet iron core and the magnet tube.

Furthermore, move the iron core and adopt the I type, the inside that moves the iron core is provided with vertical blind hole, and reset spring's the other end is put into in the blind hole and be connected bottom the blind hole, adopt the I type to move the iron core and have compact structure, small, the quality is light, the impact force is little advantage, and the air gap is in the coil entirely, produces suction great.

Furthermore, the packing block is of a T-shaped structure, the packing block is embedded in the bottom of the movable iron core, the packing block is embedded in the movable iron core, the stroke of the packing block is consistent with that of the movable iron core, the opening and closing of the valve body outlet can be controlled in time, and the on-off response speed of the valve body is improved.

Furthermore, a magnetic conductive plate is placed on the upper portion of the valve body, the magnetic conductive plate and a coil housing above the magnetic conductive plate form a closed containing cavity, the coil is arranged in the containing cavity and fixed through screws, the coil is sleeved outside part of the magnetism isolating pipe, the iron core is moved after the coil is electrified, and the magnetism leakage of the magnetic flux beams is reduced through the magnetism isolating pipe.

Furthermore, a chamfer surface is arranged at an opening at the upper part of the valve body, and O-shaped rings are embedded between the chamfer surface and the lower surface of the magnetic conduction plate and between the chamfer surface and the outer surface of the lower part of the magnetism isolating pipe, so that the sealing property of the valve body is improved.

Furthermore, an inlet at the bottom of the valve body is connected with a medium inlet pipeline, an outlet at the bottom of the valve body is connected with a medium outlet pipeline, a filter screen is further arranged in the medium inlet pipeline, the coil is electrified with the valve body to be opened, and a medium can enter through the medium inlet pipeline and is output along the medium outlet pipeline.

Compared with the prior art the utility model discloses following beneficial effect has: the magnetic conduction plate is arranged below the coil, and the magnetism isolating pipe is arranged in the coil, so that the concentration of magnetic flux beams is effectively improved, the direction of the magnetic flux beams is effectively guided, the working magnetic flux beams are led to the iron core, the flux leakage is reduced, and the isolation effect is realized.

Drawings

FIG. 1 is a schematic view of the structure of this patent;

in the figure, 1, a valve body; 2. a filter screen; 3. a filler block; 4. a movable iron core; 5. an O-shaped ring; 6. a magnetic conductive plate; 7. a return spring; 8. a magnetism isolating pipe; 9. a stationary iron core; 10. dividing a magnetic ring; 11. a coil; 12. a coil housing; 13. and (4) screws.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings.

An isolated two-way solenoid valve comprising: the electromagnetic valve comprises a valve body 1, an electromagnetic component and a packing block 3, wherein an inlet at the bottom of the valve body 1 is connected with a medium inlet pipeline, a filter screen 2 is also arranged in the medium inlet pipeline, and the filter screen 2 is used for filtering impurities to prevent the valve body 1 from being damaged; an outlet at the bottom of the valve body 1 is connected with a medium output pipeline, when the packing block 3 moves upwards and the valve body 1 is opened, a medium can enter the valve body 1 through the medium inlet pipeline and is output along the medium output pipeline.

The packing block 3 is of a T-shaped structure, the packing block 3 is linked with the electromagnetic component, and the electromagnetic component can act when the electromagnetic component is switched on or switched off, so that the packing block 3 is driven to move, and finally the opening and closing state of the valve body outlet is controlled.

The electromagnetic component includes: the valve comprises a movable iron core 4, a static iron core 9 and a coil 11, wherein the coil 11 is led into an external power supply through a lead, and the coil 11 is powered on or off to control the motion states of the movable iron core 4 and a filler block, so that the valve body 1 is controlled to be switched on or switched off; the static iron core 9 is of a T-shaped structure and is divided into an upper part, a middle part and a lower part, the outer diameters of the middle part and the lower part of the T-shaped structure are smaller than that of the upper part, the sub-magnetic rings 10 are distributed on the outer peripheral ring of the lower part of the static iron core 9, and the bouncing phenomenon of the alternating current electromagnet can be effectively avoided by utilizing the sub-magnetic rings 10; the movable iron core 4 is positioned below the static iron core 9 and is connected through a return spring 7: the inside of the upper portion of the movable iron core 4 is provided with a vertical blind hole, one end of a reset spring 7 is connected with the bottom of the static iron core 9, the other end of the reset spring is placed in the blind hole and connected with the bottom of the blind hole, the impact of the movable iron core 4 on the shunt ring 10 during suction is reduced by utilizing the reset spring 7, the damage of the shunt ring 10 is avoided, the movable iron core 4 adopts an I-shaped structure, and the magnetic core has the advantages of compact structure, small size, light weight and small impact force, air gaps are all located in the coil 11, and the generated suction force is large.

Further, the middle and lower parts of the static iron core 9 and the outer part of the movable iron core 4 are sleeved with magnetism isolating pipes 8, the magnetism isolating pipes 8 are made of non-magnetic materials such as 304 stainless steel, and the magnetism isolating pipes 8 are abutted to the lower surface of the upper part of the T-shaped structure of the static iron core 9; the annular groove is formed in the middle of the static iron core 9, and the O-shaped ring 5 is embedded in the annular groove, so that the sealing performance of the valve body is improved.

Further, the coil 11 is arranged on the upper portion of the valve body 1 and located on the galvanized magnetic conductive plate 6, the magnetic conductive plate 6 and the coil housing 12 form a closed containing cavity, the coil 11 is arranged in the containing cavity and fixed through a screw 13, the coil 11 is sleeved outside a part of the magnetism isolating pipe 8, the iron core 4 is moved after the coil is electrified, and the magnetism leakage of the magnetic flux beam is reduced by the magnetism isolating pipe 8.

Furthermore, the bottom of the movable iron core 4 is arranged in the opening at the upper part of the valve body 1, and the filler block 3 with a T-shaped structure is embedded in the bottom of the movable iron core 4, so that the movable iron core and the filler block are tightly combined.

Furthermore, a chamfer surface is arranged at an upper opening of the valve body 1, and an O-shaped ring 5 is embedded between the chamfer surface and the lower surface of the magnetic conduction plate 6 and the outer surface of the lower part of the magnetism isolation pipe 8, so that the sealing performance of the valve body is improved.

By adopting the application, when the coil is not electrified, the movable iron core and the packing block keep static under the action of self gravity, the outlet of the valve body is blocked by the packing block, and the valve body is closed; the coil is electrified, the movable iron core moves upwards and attracts the static iron core to drive the packing block to move, so that the valve body is opened, the medium flows in the pipeline and is output from the medium output pipeline, the split magnetic ring is arranged on the outer periphery of the static iron core, the bouncing phenomenon of the alternating current electromagnet can be effectively avoided, and meanwhile, the impact force of the split magnetic ring is reduced by the reset spring, and the split magnetic ring is prevented from being damaged; and the magnetic conduction plate and the magnetism isolating pipe are used for realizing the direction of concentrating and guiding magnetic flux, reducing magnetic leakage and realizing the isolation effect.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the claims of the present invention.

Claims

1. An isolated two-way solenoid valve comprising: the device comprises a valve body (1), an electromagnetic component and a packing block (3), wherein the bottom of the valve body (1) is provided with an inlet and an outlet of a medium, the packing block (3) for opening and closing the outlet is arranged in the valve body (1), and the packing block (3) is in linkage connection with the electromagnetic component; the electromagnetic component includes: move iron core (4), quiet iron core (9), coil (11), its characterized in that: the magnetic isolation device is characterized by further comprising a magnetic isolation tube (8), a magnetic isolation ring (10) and a return spring (7), wherein the magnetic isolation tube (8) is sleeved outside the middle lower part of the movable iron core (4) and outside the static iron core (9); the sub-magnetic rings (10) are distributed on the outer periphery of the lower part of the static iron core (9); one end of the reset spring (7) is installed at the bottom of the static iron core (9), and the other end of the reset spring is placed in the movable iron core (4) and is connected with the movable iron core (4).

2. An isolated two-way solenoid valve according to claim 1, wherein: the static iron core (9) is of a T-shaped structure and is divided into an upper part, a middle part and a lower part, the outer diameters of the middle part and the lower part of the T-shaped structure are smaller than that of the upper part, and the top of the magnetism isolating pipe (8) is abutted against the lower surface of the upper part of the T-shaped structure; an annular groove is formed in the middle of the static iron core (9), and an O-shaped ring (5) is embedded in the annular groove.

3. An isolated two way solenoid valve according to claim 1, wherein: the movable iron core (4) is of an I shape, a vertical blind hole is formed in the movable iron core (4), and the other end of the reset spring (7) is placed in the blind hole and connected with the bottom of the blind hole.

4. An isolated two-way solenoid valve according to claim 1, wherein: the packing block (3) is of a T-shaped structure, and the packing block (3) is embedded in the bottom of the movable iron core (4).

5. An isolated two-way solenoid valve according to claim 2, wherein: a magnetic conduction plate (6) is placed on the upper portion of the valve body (1), the magnetic conduction plate (6) and the coil housing (12) form a closed cavity, and the coil (11) is arranged in the cavity and sleeved outside the magnetism isolating pipe (8).

6. An isolated two way solenoid valve according to claim 5, wherein: a chamfer surface is arranged at an opening at the upper part of the valve body (1), and an O-shaped ring (5) is embedded between the chamfer surface and the lower surface of the magnetic conduction plate (6) and the outer surface of the lower part of the magnetism isolating pipe (8).

7. An isolated two way solenoid valve according to claim 5 wherein: an inlet at the bottom of the valve body (1) is connected with a medium inlet pipeline, an outlet at the bottom of the valve body (1) is connected with a medium outlet pipeline, and a filter screen (2) is arranged in the medium inlet pipeline.