CN214618090U

CN214618090U - Normally open type two-position two-way electromagnetic valve

Info

Publication number: CN214618090U
Application number: CN202023180069.7U
Authority: CN
Inventors: 郑守成; 邵少琴
Original assignee: Ningbo Chenshi Xinguang Pneumatic Co ltd
Current assignee: Ningbo Chenshi Xinguang Pneumatic Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-11-05
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a normally open type two-position two-way electromagnetic valve, which comprises a valve body, a valve seat and a pilot head, wherein the pilot head is arranged at the top of the valve body through screws, the pilot head comprises a magnetism isolating pipe, a static iron core, a movable iron core and a coil assembly, the bottom of the magnetism isolating pipe is arranged between the valve seat and the valve body in a pressing way, the static iron core is fixed at the inner top of the magnetism isolating pipe, a valve cavity is formed between the static iron core, the magnetism isolating pipe and the valve body, the movable iron core is arranged in the valve cavity, the coil assembly is sleeved outside the magnetism isolating pipe, a movable iron core spring is connected between the movable iron core and the magnetism isolating pipe, an upper plug is movably arranged at the top of the inner cavity of the movable iron core, the sealing performance of the normally open type two-position two-way electromagnetic valve can be further ensured through the addition of a first ring-shaped part, a second ring-shaped part, a first sealing ring-shaped part and a second sealing ring-shaped part, can make up for the leakproofness thereof, and then prolong the life of this solenoid valve.

Description

Normally open type two-position two-way electromagnetic valve

Technical Field

The utility model relates to a solenoid valve technical field specifically is a normal open type two-position two-way 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 solenoid valve can be matched with different circuits to realize expected control, and the control precision and flexibility can be ensured. There are many types of solenoid valves, with different solenoid valves functioning at different locations in the control system, the most common being one-way valves, safety valves, directional control valves, speed control valves, etc.

Present solenoid valve generally is through last chock plug and inlet channel realization seal and opening, and then realizes the shutoff to inlet channel, but along with live time's length of side, the leakproofness between upper chock plug and the inlet channel is relatively poor, appears disappointing condition easily, for this reason the utility model provides a normally open type two-position two-way solenoid valve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two-position two-way solenoid valve of normal open type to solve the problem that proposes among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides a normally open type two-position two-way electromagnetic valve, which comprises a valve body, a valve seat and a pilot head, wherein the pilot head is arranged at the top of the valve body through a screw, the pilot head comprises a magnetism isolating pipe, a static iron core, a movable iron core and a coil assembly, the bottom of the magnetism isolating pipe is arranged between the valve seat and the valve body in a pressing way, the static iron core is fixed at the inner top of the magnetism isolating pipe, a valve cavity is formed among the static iron core, the magnetism isolating pipe and the valve body, the movable iron core is arranged in the valve cavity, the coil assembly is sleeved outside the magnetism isolating pipe, a movable iron core spring is connected between the movable iron core and the magnetism isolating pipe, an upper plug is movably arranged at the top of the movable iron core inner cavity, a buffer plug is movably arranged at the bottom of the movable iron core inner cavity, a first ring-shaped piece is fixedly connected to the inner surface of the magnetism isolating pipe, a second ring-shaped piece is fixedly connected to the outer surface of the movable iron core, the top of second loop forming element fixedly connected with first sealing washer, the top of second loop forming element just is located the outside fixedly connected with second sealing washer of first sealing washer, ring groove has been seted up to the bottom of first loop forming element, inlet channel has been seted up at the top of quiet iron core, the valve body is equipped with the gas outlet with the valve pocket intercommunication, the gas outlet intercommunication has the joint of giving vent to anger.

As an optimal technical solution of the utility model: the outer surface of the first sealing ring is in contact with the inner side surface of the first annular piece.

As an optimal technical solution of the utility model: and one side of the surface of the coil component is connected with a power line.

As an optimal technical solution of the utility model: and one side of the surface of the movable iron core is provided with a balance hole.

As an optimal technical solution of the utility model: and a third sealing ring is arranged on the contact surface between the top inside the static iron core and the movable iron core.

The utility model discloses the beneficial effect who reaches is: through the addding of first loop forming element, second loop forming element, first sealing washer and second sealing washer, can further guarantee its leakproofness, when last chock plug leakproofness variation, can compensate its leakproofness, and then prolong the life of this solenoid valve.

Drawings

Fig. 1 is a schematic structural diagram of a normally open two-position two-way solenoid valve.

Fig. 2 is a schematic structural diagram of an external portion of a normally open two-position two-way solenoid valve.

Fig. 3 is a top view of a normally open two-position two-way solenoid valve.

FIG. 4 is an enlarged view of a portion of a normally open two-position, two-way solenoid valve shown in FIG. 1 at A.

Fig. 5 is a schematic structural diagram of a first ring member in a normally open two-position two-way solenoid valve.

Fig. 6 is a schematic structural diagram of a second ring member in a normally open two-position two-way solenoid valve.

In the figure: 1. a valve body; 2. a valve seat; 3. a leading head; 4. a magnetism isolating pipe; 5. a screw; 6. a stationary iron core; 7. a movable iron core; 8. a coil assembly; 9. a valve cavity; 10. a movable iron core spring; 11. an upper plug head; 12. a buffer plug head; 13. a first annular member; 14. a second ring-shaped member; 15. a first seal ring; 16. a second seal ring; 17. an annular neck; 18. an air intake passage; 19. an air outlet; 20. an air outlet joint; 21. a power line; 22. a balance hole; 23. and a third sealing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Example (b): as shown in fig. 1-6, the utility model provides a normally open type two-position two-way solenoid valve, which comprises a valve body 1, a valve seat 2 and a pilot head 3, wherein the pilot head 3 is installed on the top of the valve body 1 through a screw 5, the pilot head 3 comprises a magnetism isolating pipe 4, a static iron core 6, a movable iron core 7 and a coil component 8, the bottom of the magnetism isolating pipe 4 is pressed between the valve seat 2 and the valve body 1, the static iron core 6 is fixed on the inner top of the magnetism isolating pipe 4, a valve cavity 9 is formed between the static iron core 6, the magnetism isolating pipe 4 and the valve body 1, the movable iron core 7 is arranged in the valve cavity 9, the coil component 8 is sleeved outside the magnetism isolating pipe 4, a movable iron core spring 10 is connected between the movable iron core 7 and the magnetism isolating pipe 4, an upper plug 11 is movably arranged on the top of the inner cavity of the movable iron core 7, a buffer plug 12 is movably arranged on the bottom of the inner cavity of the movable iron core 7, a first ring component 13 is fixedly connected on the inner surface of the magnetism isolating pipe 4, outer fixed surface of movable iron core 7 is connected with second annular member 14, the first sealing washer 15 of top fixedly connected with of second annular member 14, the top of second annular member 14 and the outside fixedly connected with second sealing washer 16 that is located first sealing washer 15, ring groove 17 has been seted up to the bottom of first annular member 13, inlet channel 18 has been seted up at quiet iron core 6's top, valve body 1 is equipped with the gas outlet 19 with valve chamber 9 intercommunication, gas outlet 19 intercommunication has gas outlet joint 20, through first annular member 13, second annular member 14, first sealing washer 15 and the addding of second sealing washer 16, can further guarantee its leakproofness, in the time of last chock plug 11 leakproofness variation, can compensate its leakproofness, and then prolong the life of this solenoid valve.

Wherein the outer surface of the first packing 15 is in contact with the inner side surface of the first ring member 13.

One side of the surface of the coil block 8 is connected to a power supply line 21.

Wherein, one side of the surface of the movable iron core 7 is provided with a balance hole 22.

Wherein, the contact surface of the top inside the static iron core 6 and the movable iron core 7 is provided with a third sealing ring 23.

Specifically, the utility model discloses during the use: when the coil is not electrified in a normal state, the movable iron core spring 10 presses the movable iron core 7 downwards, an upper plug head of the movable iron core 7 is separated from the air inlet channel 18, and compressed air flows to air-using equipment through the air inlet channel 18, the valve cavity 9, the air outlet 19 and the air outlet joint 20 in sequence; when the coil is electrified, the electromagnetic suction force generated by the coil assembly 8 drives the movable iron core 7 to move towards the direction of the static iron core 6, the upper plug head 11 of the movable iron core 7 seals the air inlet channel 18, the passage between the air inlet channel 18 and the valve cavity 9 is cut off, compressed air cannot continuously flow to air equipment, and when the sealing performance of the upper plug head is poor, the sealing performance of the upper plug head can be further compensated by matching the first annular piece 13 and the second annular piece 14.

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. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The normally open type two-position two-way electromagnetic valve comprises a valve body (1), a valve seat (2) and a pilot head (3), and is characterized in that the pilot head (3) is installed at the top of the valve body (1) through a screw (5), the pilot head (3) comprises a magnetism isolating pipe (4), a static iron core (6), a movable iron core (7) and a coil assembly (8), the bottom of the magnetism isolating pipe (4) is pressed between the valve seat (2) and the valve body (1), the static iron core (6) is fixed at the inner top of the magnetism isolating pipe (4), a valve cavity (9) is formed among the static iron core (6), the magnetism isolating pipe (4) and the valve body (1), the movable iron core (7) is arranged in the valve cavity (9), the coil assembly (8) is sleeved outside the magnetism isolating pipe (4), and a movable spring (10) is connected between the movable iron core (7) and the magnetism isolating pipe (4), an upper plug head (11) is movably arranged at the top of the inner cavity of the movable iron core (7), a buffer plug head (12) is movably arranged at the bottom of the inner cavity of the movable iron core (7), the inner surface of the magnetism isolating pipe (4) is fixedly connected with a first ring piece (13), the outer surface of the movable iron core (7) is fixedly connected with a second ring piece (14), the top of the second ring-shaped part (14) is fixedly connected with a first sealing ring (15), a second sealing ring (16) is fixedly connected with the top of the second annular piece (14) and positioned at the outer side of the first sealing ring (15), the bottom of the first annular part (13) is provided with an annular clamping groove (17), the top of the static iron core (6) is provided with an air inlet channel (18), the valve body (1) is provided with an air outlet (19) communicated with the valve cavity (9), and the air outlet (19) is communicated with an air outlet joint (20).

2. A normally open two-position two-way solenoid valve according to claim 1, wherein the outer surface of the first sealing ring (15) is in contact with the inner surface of the first annular member (13).

3. A normally open two position, two way solenoid valve according to claim 1 wherein a power cord (21) is attached to one side of the face of the coil assembly (8).

4. A normally open type two-position two-way electromagnetic valve according to claim 1, wherein a balance hole (22) is formed on one side of the surface of the movable iron core (7).

5. A normally open two-position two-way solenoid valve according to claim 1, characterized in that the contact surface between the top of the inside of the static iron core (6) and the movable iron core (7) is provided with a third sealing ring (23).