CN218000414U - Adjustable electromagnetic valve - Google Patents

Abstract

The utility model discloses an adjustable electromagnetic valve, which comprises a valve body, be connected to the guide's head subassembly of valve body, be equipped with air inlet and gas outlet on the valve body respectively, be equipped with first valve port and second valve port in the valve body respectively, the air inlet is through first valve port and gas outlet intercommunication, and the air inlet still communicates through second valve port and gas outlet, the iron core that moves of guide's head subassembly stretches into in the valve body, move iron core and the sealed cooperation of first valve port, it has the trend of motion with the shutoff of first valve port all the time to move the iron core, it is used for opening and close the manual regulation pole of second valve port still to move about the setting on the valve body, the tip of manual regulation pole stretches into in the valve body and with the sealed cooperation of second valve port. The utility model has the advantages of simple and reasonable structure, the during operation both can be opened and close through guide's first subassembly control valve port, also can the manual control valve port open and close, and easy operation can make the solenoid valve keep opening the state lastingly according to the actual demand, realizes normally opening and the switching of normal close.

Description

Adjustable electromagnetic valve

Technical Field

The utility model relates to a solenoid valve technical field, in particular to two solenoid valves of normal close formula with adjustable.

Background

The electromagnetic valve is a common automatic control element in an industrial control system and is widely applied. The electromagnetic valves are various in types, and one of the two-position two-way electromagnetic valves is adopted.

Two solenoid valves of current normal close formula, its structure includes the valve body usually, the guide head subassembly that is connected with the valve body, the valve body is equipped with air inlet and gas outlet, be equipped with the valve port that is used for communicateing air inlet and gas outlet in the valve body, the guide head subassembly is including separating magnetic sleeve, move the iron core, quiet iron core and coil pack, separate magnetic sleeve fixed connection to valve body, move iron core and quiet iron core and locate in separating magnetic sleeve, move the iron core and stretch into in the valve body and with the sealed cooperation of valve port, the coil pack cover is located and is separated the telescopic outside of magnetism, it is equipped with reset spring to support between iron core and the sleeve to move.

When the valve works, the coil assembly is powered on and powered off to control the movable iron core to move axially, so that the valve port is opened and closed, and the effect of controlling the on-off of the air inlet and the air outlet is achieved. Regarding the specific structure of the normally closed two-position two-way electromagnetic valve, see also a two-position two-way high-frequency electromagnetic valve disclosed in chinese patent (publication No. CN 204985944U).

The existing normally closed two-position two-way electromagnetic valve has the defects that the opening and closing of a valve port are directly controlled by the movable iron core, the movable iron core is directly controlled by the electromagnetic attraction generated by electrifying the coil assembly, and for the coil assembly, if the coil is in an electrified state for a long time, the electromagnetic valve is easy to break down due to overheating of the coil, so that the existing normally closed two-position two-way electromagnetic valve can not be kept in an open state for a long time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide an adjustable solenoid valve, its simple structure is reasonable, and the during operation both can open and close through guide's head subassembly control valve port, also can the manual control valve port open and close, and easy operation can make the solenoid valve keep opening the state lastingly according to the actual demand, realizes normally opening and the switching of normally closed.

In order to achieve the above purpose, the utility model adopts the following technical scheme.

An adjustable electromagnetic valve comprises a valve body and a pilot head assembly connected to the valve body, wherein an air inlet and an air outlet are respectively arranged on the valve body, a first valve port and a second valve port are respectively arranged in the valve body, the air inlet is communicated with the air outlet through the first valve port, the air inlet is also communicated with the air outlet through the second valve port, a movable iron core of the pilot head assembly extends into the valve body, the movable iron core is in sealing fit with the first valve port and always has a movement trend for plugging the first valve port, a manual adjusting rod for opening and closing the second valve port is movably arranged on the valve body, and the end part of the manual adjusting rod extends into the valve body and is in sealing fit with the second valve port.

Further, the guide head subassembly still includes and separates magnetism sleeve, quiet iron core, coil pack and moves the iron core spring, separate magnetism sleeve fixed connection to the valve body, quiet iron core fixed connection to separate the magnetism sleeve, move the iron core activity set up in separate in the magnetism sleeve, move the iron core spring and support and locate move the iron core with between the quiet iron core, the coil pack cover is located separate the outside of magnetism sleeve.

Furthermore, a plug head which is in sealing fit with the first valve port is arranged at the end part of the movable iron core.

Furthermore, the valve body is fixedly connected with a connecting seat, the manual adjusting rod is in threaded connection with the connecting seat, and the end part of the manual adjusting rod penetrates through the connecting seat and extends into the valve body.

Furthermore, the end part of the manual adjusting rod is provided with a conical surface which is in sealing fit with the second valve port.

Furthermore, the connecting seat is in threaded connection with the valve body, and a sealing ring is arranged between the connecting seat and the valve body.

Further, the first valve port and the second valve port are arranged oppositely and in a staggered mode.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up mutually independent first valve port and second valve port in the valve body respectively, and set up guide's head subassembly and manual regulation pole on the valve body respectively, at the during operation, both can utilize opening and close of the first valve port of guide's head subassembly coming electric control, can also utilize manual regulation pole to come opening and close of manual control second valve port, when needs make this solenoid valve as normal close formula solenoid valve, only need make the second valve port keep the closed condition can, and when needs make this solenoid valve as normal open solenoid valve, then only need remove manual regulation pole, make the second valve port keep the open condition can. Thus, make the utility model discloses can switch over at normal close and normally open state, and can not cause the damage because of the long-time circular telegram of solenoid, structural design is simple reasonable, convenient operation, and the function is various, can satisfy the user demand of different scenes.

Drawings

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

Fig. 2 is a schematic view of the overall assembly structure of the present invention.

In FIGS. 1-2: 1. a valve body; 11. an air inlet; 12. an air outlet; 13. a first valve port; 14. a second valve port; 2. a pilot head assembly; 21. a magnetic isolation sleeve; 22. a stationary core; 23. a movable iron core; 231. a plug head; 24. a coil assembly; 25. a movable iron core spring; 3. a manual adjusting rod; 31. a conical surface; 4. a connecting seat; 5. and (5) sealing rings.

Detailed Description

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

As shown in fig. 1-2, an adjustable electromagnetic valve includes a valve body 1, a pilot head assembly 2 and a manual adjustment rod 3, which are respectively connected to the valve body 1, the valve body 1 is respectively provided with an air inlet 11 and an air outlet 12, the valve body 1 is respectively provided with a first valve port 13 and a second valve port 14, the first valve port 13 and the second valve port 14 are arranged in a relative and staggered manner, which is not only convenient for processing the valve body 1, but also convenient for assembling the valve body 1 with the pilot head assembly 2 and the manual adjustment rod 3, the air inlet 11 is communicated with the air outlet 12 through the first valve port 13, and the air inlet 11 is also communicated with the air outlet 12 through the second valve port 14.

The pilot head assembly 2 further comprises a magnetic isolation sleeve 21, a static iron core 22, a movable iron core 23, a coil assembly 24 and a movable iron core spring 25, the magnetic isolation sleeve 21 is fixedly connected to the valve body 1, the static iron core 22 is fixedly connected to the magnetic isolation sleeve 21, in the embodiment, the static iron core 22 and the magnetic isolation sleeve 21 are integrally formed, the movable iron core 23 is movably arranged in the magnetic isolation sleeve 21, the end portion of the movable iron core 23 extends into the valve body 1, the movable iron core 23 is in sealing fit with the first valve port 13, the movable iron core spring 25 is arranged between the movable iron core 23 and the static iron core 22 in a supporting mode, the movable iron core spring 25 enables the movable iron core 23 to always have a movement tendency of plugging the first valve port 13, and the coil assembly 24 is sleeved outside the magnetic isolation sleeve 21. When the coil assembly 24 is in a power-off state, the first valve port 13 is blocked by the movable iron core 23 under the action of the movable iron core spring 25, that is, the first valve port 13 is closed, and when the coil assembly 24 is in a power-on state, the movable iron core 23 is far away from the first valve port 13 under the action of electromagnetic attraction, that is, the first valve port 13 is opened.

The manual adjusting rod 3 is movably connected to the valve body 1, and the end of the manual adjusting rod 3 extends into the valve body 1 and is in sealing fit with the second valve port 14 so as to open and close the second valve port 14. Specifically speaking, 1 fixedly connected with connecting seat 4 of valve body, for simple to operate, connecting seat 4 and 1 threaded connection of valve body are provided with sealing washer 5 between connecting seat 4 and the valve body 1, and sealed effect is better. The manual adjusting rod 3 is in threaded connection with the connecting seat 4, and the end part of the manual adjusting rod 3 penetrates through the connecting seat 4 and extends into the valve body 1. When the end of the manual adjusting lever 3 is in close contact with the second valve port 14, the second valve port 14 is closed, and when the manual adjusting lever 3 is rotated, the manual adjusting lever 3 moves along the axial direction of the connecting seat 4, so that the manual adjusting lever 3 is far away from the second valve port 14, and at this time, the second valve port 14 is opened.

In this embodiment, the end of the plunger 23 is provided with a plug 231 which is in sealing engagement with the first valve port 13. The plug 231 is made of rubber materials, and by arranging the plug 231, the sealing effect of the movable iron core 23 on the first valve port 13 can be improved, meanwhile, the movable iron core 23 can be prevented from colliding with the plug 231, a good buffering effect is achieved, and the service life is prolonged.

In this embodiment, the end of the manual adjustment lever 3 is provided with a tapered surface 31 that sealingly engages with the second valve port 14. Through setting up conical surface 31 at the tip of manual regulation pole 3, utilize conical surface 31 and second valve port 14 to carry out sealed cooperation, not only can improve the sealed effect of manual regulation pole 3 to second valve port 14, simultaneously, when rotatory manual regulation pole 3 kept away from second valve port 14, according to the clearance change between conical surface 31 and the second valve port 14, can adjust the aperture of second valve port 14, thereby make the utility model discloses when utilizing second valve port 14 output compressed gas to gas outlet 12, can conveniently adjust output flow.

The utility model discloses a set up mutually independent first valve port 13 and second valve port 14 in valve body 1 respectively, and set up guide's head subassembly 2 and manual regulation pole 3 on valve body 1 respectively, at the during operation, both can utilize guide's head subassembly 2 to come opening and close of first valve port 13 of electric control, can also utilize manual regulation pole 3 to come opening and close of manual control second valve port 14, when needs make this solenoid valve as normal close formula solenoid valve, only need make second valve port 14 keep the closed state can, and when needs make this solenoid valve as normally open solenoid valve, then only need remove manual regulation pole 3, make second valve port 14 keep the open state can. Thus, make the utility model discloses can switch over at normal close and normally open state, and can not cause the damage because of the long-time circular telegram of solenoid, structural design is simple reasonable, convenient operation, and the function is various, can satisfy the user demand of different scenes.

The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.

Claims (7)

1. The utility model provides an adjustable electromagnetic valve, includes the valve body, is connected to the guide head subassembly of valve body, be equipped with air inlet and gas outlet on the valve body respectively, its characterized in that: the valve body is internally provided with a first valve port and a second valve port respectively, the air inlet is communicated with the air outlet through the first valve port, the air inlet is also communicated with the air outlet through the second valve port, a movable iron core of the pilot head assembly extends into the valve body, the movable iron core is in sealing fit with the first valve port, the movable iron core always has a movement trend for plugging the first valve port, the valve body is also movably provided with a manual adjusting rod for opening and closing the second valve port, and the end part of the manual adjusting rod extends into the valve body and is in sealing fit with the second valve port.

2. The adjustable solenoid valve of claim 1, wherein: the pilot head subassembly still includes to separate magnetism sleeve, quiet iron core, coil pack and moves the iron core spring, separate magnetism sleeve fixed connection to the valve body, quiet iron core fixed connection to separate the magnetism sleeve, move the iron core activity set up in separating the magnetism sleeve, move the iron core spring and support and locate move the iron core with between the quiet iron core, the coil pack cover is located separate the outside of magnetism sleeve.

3. The adjustable solenoid valve of claim 1 or 2, wherein: the end part of the movable iron core is provided with a plug head which is in sealing fit with the first valve port.

4. The adjustable solenoid valve of claim 1, wherein: the valve body is fixedly connected with a connecting seat, the manual adjusting rod is in threaded connection with the connecting seat, and the end part of the manual adjusting rod penetrates through the connecting seat and extends into the valve body.

5. An adjustable solenoid valve according to claim 1 or 4, wherein: the end part of the manual adjusting rod is provided with a conical surface which is in sealing fit with the second valve port.

6. The adjustable solenoid valve of claim 4, wherein: the connecting seat is in threaded connection with the valve body, and a sealing ring is arranged between the connecting seat and the valve body.

7. The adjustable solenoid valve of claim 1, wherein: the first valve port and the second valve port are arranged oppositely and in a staggered mode.

Images