CN214008085U

CN214008085U - Electromagnetic valve with quick response of closed valve

Info

Publication number: CN214008085U
Application number: CN202022704383.4U
Authority: CN
Inventors: 谭伟
Original assignee: Pingdingshan Yixiang Industry And Trade Co ltd
Current assignee: Pingdingshan Yixiang Industry And Trade Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-08-20
Anticipated expiration: 2030-11-20

Abstract

The utility model belongs to the field of solenoid valves, in particular to a solenoid valve with fast response of a closed valve, which comprises a valve seat and a pilot head assembly arranged on the valve seat, wherein a valve cavity is arranged inside the valve seat, a gas outlet and a gas inlet communicated with the valve cavity are respectively arranged on two sides of the valve seat, the pilot head assembly comprises a coil assembly, a magnetism isolating pipe, a static iron core and a movable iron core, and the magnetism isolating pipe is fixedly arranged on the upper part of the valve cavity; through set up the boss in the valve pocket, set up the branch passageway that the slope distributes on the lateral wall of boss, reduce or do not receive the hindering of air current when moving the iron core to the boss motion in-process, seal ring cover is in the outside of boss, directly blocks the branch passageway, accomplish the valve closing action, and inside has set up the valve rod, the movable sealing plug that the valve rod stretched into boss one end forms less relatively, reaction that can be timely sensitive, accomplish the shutoff to air guide passageway and branch passageway, reach quick response's effect.

Description

Electromagnetic valve with quick response of closed valve

Technical Field

The utility model relates to a solenoid valve field specifically is a fast solenoid valve of closed valve response.

Background

The electromagnetic valve is an industrial device controlled by electromagnetism, is an automatic basic element for controlling fluid, belongs to an actuator, is not limited to hydraulic pressure and pneumatic pressure, is used for adjusting the direction, flow, speed and other parameters of a medium in an industrial control system, can be matched with different circuits to realize expected control, and can ensure the precision and flexibility of the control.

The existing normally closed solenoid valve is pressed on a valve hole under the action of a spring under the condition that a coil loses power, fluid is blocked to be conducted, electromagnetic force is generated after the coil is electrified, the movable iron core moves reversely, and therefore the valve hole is opened. Therefore, those skilled in the art have provided a solenoid valve with a fast valve closing response to solve the above problems in the background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fast solenoid valve of closed valve response to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a fast solenoid valve of valve closing response, includes the disk seat and installs the guide head subassembly on the disk seat, the inside of disk seat is equipped with the valve pocket, the both sides of disk seat are equipped with gas outlet and the air inlet that link up with the valve pocket respectively, the guide head subassembly includes coil pack, magnetism-isolating pipe, quiet iron core and moves the iron core, magnetism-isolating pipe fixed mounting is in the upper portion of valve pocket, quiet iron core spiro union is fixed the top of magnetism-isolating pipe, the coil pack cover is established the outside of magnetism-isolating pipe, just the coil pack is connected with external power electrical property, move the iron core activity in the inboard of magnetism-isolating pipe, just move the iron core with coil pack magnetic fit, install first spring between moving iron core and the quiet iron core, the bottom of valve pocket corresponds the head of moving the iron core is equipped with towards move the convex boss of iron core direction, the air guide passageway that link up air inlet and valve pocket is seted up to the intermediate position department of boss, the outer side wall of the boss is provided with a branch channel which is distributed in an inclined mode, two ends of the branch channel are communicated with the valve cavity and the air guide channel respectively, the head of the movable iron core is provided with a concave part matched with the boss, a sealing gasket which can be sleeved outside the boss and used for sealing the air guide channel and the branch channel is installed at the head of the movable iron core, and the sealing gasket is fixedly connected with the movable iron core.

As a further aspect of the present invention: the head of the movable iron core is provided with a valve rod, one end of the valve rod is movably arranged in the movable iron core, and the other end of the valve rod is movably arranged in the lug boss.

As a further aspect of the present invention: move the inside of iron core and seted up first activity chamber, the one end of valve rod stretches into extremely in the first activity intracavity, and fixedly connected with limiting plate, be close to in the first activity intracavity one side of seal ring is equipped with the second spring, the valve rod with move between the iron core through second spring elastic connection.

As a further aspect of the present invention: a second movable cavity is arranged in the boss corresponding to the joint of the air guide channel and the branch channel, and a movable sealing plug used for plugging the air guide channel and the branch channel is arranged at one end, extending into the second movable cavity, of the valve rod.

As a further aspect of the present invention: the height of the second movable cavity is equal to twice the thickness of the movable sealing plug, and the branch channel and the air guide channel are both positioned at the lower half part of the second movable cavity.

As a further aspect of the present invention: the upper half part of boss is bullet head shape, seal ring's inner wall with the boss profile modeling cooperation, the air guide passageway is located the center pin position of boss, branch's passageway quantity is six, just winds the air guide passageway is central symmetry and distributes.

As a further aspect of the present invention: and a sealing ring is arranged at the joint of one end of the magnetism isolating pipe extending into the valve cavity and the valve seat, so that the magnetism isolating pipe is in sealing connection with the valve seat.

Compared with the prior art, the beneficial effects of the utility model are that:

through set up the boss in the valve pocket, and set up the air guide passageway in the intermediate position of boss, and set up the branch passageway that the slope distributes on the lateral wall of boss, reduce or do not receive the hindering of air current in to the boss motion process when moving the iron core, seal ring cover is in the outside of boss, directly block the branch passageway, accomplish the action of closing the valve, and inside has set up the valve rod, the movable sealing plug that the valve rod stretched into boss one end forms less relatively, response that can be timely sensitive, accomplish the shutoff to air guide passageway and branch passageway, reach quick response's effect.

Drawings

FIG. 1 is a schematic structural diagram of a solenoid valve with a fast closing response;

FIG. 2 is an enlarged schematic view of a valve chamber in a solenoid valve with a fast closing response;

FIG. 3 is a schematic diagram of a top view of a boss of a solenoid valve with a fast valve closing response;

fig. 4 is a schematic perspective view of a boss in an electromagnetic valve with a fast closing response.

In the figure: 1. a valve seat; 101. an air outlet; 102. an air inlet; 103. a valve cavity; 2. a coil assembly; 3. a magnetism isolating pipe; 4. a stationary iron core; 5. a movable iron core; 51. a sealing gasket; 52. a first movable chamber; 6. a first spring; 7. a valve stem; 71. a movable sealing plug; 72. a limiting plate; 73. a second spring; 8. a boss; 801. an air guide channel; 802. a branch channel; 803. a second active cavity.

Detailed Description

Referring to fig. 1 to 4, in an embodiment of the present invention, an electromagnetic valve with fast valve closing response includes a valve seat 1 and a pilot head assembly installed on the valve seat 1, a valve cavity 103 is installed inside the valve seat 1, an air outlet 101 and an air inlet 102 communicated with the valve cavity 103 are respectively installed on both sides of the valve seat 1, the pilot head assembly includes a coil assembly 2, a magnetism isolating pipe 3, a static iron core 4 and a movable iron core 5, the magnetism isolating pipe 3 is fixedly installed on an upper portion of the valve cavity 103, the static iron core 4 is fixed on a top of the magnetism isolating pipe 3 in a threaded manner, the coil assembly 2 is sleeved outside the magnetism isolating pipe 3, the coil assembly 2 is electrically connected with an external power source, the movable iron core 5 is movable inside the magnetism isolating pipe 3, the movable iron core 5 is magnetically matched with the coil assembly 2, a first spring 6 is installed between the movable iron core 5 and the static iron core 4, a boss 8 protruding toward the movable iron core 5 is installed on a head portion of the bottom of the valve cavity 103 corresponding to the movable iron core 5, an air guide channel 801 penetrating through the air inlet 102 and the valve cavity 103 is formed in the middle of the boss 8, a branch channel 802 distributed obliquely is formed in the outer side wall of the boss 8, two ends of the branch channel 802 penetrate through the valve cavity 103 and the air guide channel 801 respectively, a concave portion matched with the boss 8 is formed in the head of the movable iron core 5, a sealing washer 51 which can be sleeved outside the boss 8 and used for sealing the air guide channel 801 and the branch channel 802 is installed on the head of the movable iron core 5, and the sealing washer 51 is fixedly connected with the movable iron core 5.

In this embodiment, by providing the protruding boss 8 in the valve chamber 103, and providing the air guide channel 801 in the middle of the boss 8, and the outer side wall of the boss 8 is provided with a branch passage 802 which is distributed obliquely, two ends of the branch passage 802 respectively penetrate through the valve cavity 103 and the air guide passage 801, the head of the movable iron core 5 is provided with a sealing washer 51, and by arranging the inclined branch channel 802, after the movable iron core 5 loses the action of electromagnetic force, the sealing washer 51 is sleeved outside the boss 8 to directly block the branch channel 802 to complete the valve closing action, and the valve rod 7 is arranged in the inner part, the movable sealing plug 71 of the valve rod 7 extending into one end of the boss 8 is relatively small, can timely and sensitively react, the air guide channel 801 and the branch channel 802 are plugged, and the effect of quick response is achieved.

In fig. 1 and 2, a head of the movable iron core 5 is provided with a valve rod 7, one end of the valve rod 7 is movably installed in the movable iron core 5, the other end of the valve rod 7 is movably installed in the boss 8, the movable iron core 5 is internally provided with a first movable cavity 52, one end of the valve rod 7 extends into the first movable cavity 52 and is fixedly connected with a limiting plate 72, one side of the first movable cavity 52 close to the sealing gasket 51 is provided with a second spring 73, the valve rod 7 is elastically connected with the movable iron core 5 through the second spring 73, a second movable cavity 803 is arranged in the boss 8 corresponding to the connection position of the air guide channel 801 and the branch channel 802, one end of the valve rod 7 extending into the second movable cavity 803 is provided with a movable sealing plug 71 for sealing the air guide channel 801 and the branch channel 802, the valve rod 7 is arranged at the head of the movable iron core 5, when the movable iron core 5 moves towards the valve closing direction, the movable sealing plug 71 moves towards the lower part from the upper part of the second movable cavity 803, the air guide channel 801 and the branch channel 802 are blocked, so that the air guide channel 801 and the branch channel 802 are blocked for a corresponding purpose quickly, when the movable iron core 5 moves towards the valve opening direction, the sealing gasket 51 is separated from the outside of the boss 8 firstly, then the second spring 73 is in a tightened state, and then the valve rod 7 is driven to move upwards, so that the movable sealing plug 71 moves from the lower part of the second movable cavity 803 towards the upper part, the air guide channel 801 and the branch channel 802 are opened, and the valve opening state is formed.

In fig. 2, the height of the second movable chamber 803 is equal to twice the thickness of the movable sealing plug 71, and the branch passage 802 and the air guide passage 801 are both located in the lower half of the second movable chamber 803, so that the movable range of the movable sealing plug 71 is reduced by reducing the space of the second movable chamber 803, and the valve closing can be performed with quick response.

In fig. 2-4, the upper half of the boss 8 is bullet-shaped, the inner wall of the sealing washer 51 is in copying fit with the boss 8, the air guide channel 801 is located at the central axis of the boss 8, the number of the branch channels 802 is six, and the branch channels 802 are distributed around the air guide channel 801 in central symmetry, the bullet-shaped boss 8 is arranged, so that the sealing and the separation of the sealing washer 51 are facilitated, and the resistance applied in the valve closing process can be reduced due to the arrangement of the branch channels 802.

In fig. 1 and 2, a sealing ring is arranged at the joint of one end of the magnetism isolating pipe 3 extending into the valve cavity 103 and the valve seat 1, so that the magnetism isolating pipe 3 is hermetically connected with the valve seat 1, and the valve cavity 103 can be kept in a sealed state without air leakage by the arrangement of the sealing ring.

The utility model discloses a theory of operation is: when the movable iron core 5 loses the electromagnetic force, the movable iron core moves towards the boss 8 under the elastic force of the first spring 6, the movable iron core is not hindered by air flow in the moving process, the sealing washer 51 is sleeved outside the boss 8 to directly block the branch channel 802 to complete the valve closing action, the valve rod 7 is arranged in the movable iron core, the movable sealing plug 71 moves from the upper part of the second movable cavity 803 to the lower part to block the air guide channel 801 and the branch channel 802, so as to quickly correspond to the purpose, firstly, the air guide channel 801 and the branch channel 802 are blocked, timely and sensitive reaction can be realized, the quick response effect is achieved, when the movable iron core 5 moves towards the valve opening direction, the sealing washer 51 is firstly separated from the outside of the boss 8, then, the second spring 73 is in a tightening state, then, the valve rod 7 is driven to move upwards, so that the movable sealing plug 71 moves from the lower part of the second movable cavity 803 to the upper part to open the air guide channel 801 and the branch channel 802, an open valve state is formed.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The electromagnetic valve is characterized by comprising a valve seat (1) and a pilot head assembly arranged on the valve seat (1), wherein a valve cavity (103) is arranged inside the valve seat (1), a gas outlet (101) and a gas inlet (102) which are communicated with the valve cavity (103) are respectively arranged on two sides of the valve seat (1), the pilot head assembly comprises a coil assembly (2), a magnetism isolating pipe (3), a static iron core (4) and a movable iron core (5), the magnetism isolating pipe (3) is fixedly arranged on the upper portion of the valve cavity (103), the static iron core (4) is fixed at the top of the magnetism isolating pipe (3) in a screwed mode, the coil assembly (2) is sleeved outside the magnetism isolating pipe (3), the coil assembly (2) is electrically connected with an external power supply, the movable iron core (5) is movable on the inner side of the magnetism isolating pipe (3), and the movable iron core (5) is magnetically matched with the coil assembly (2), a first spring (6) is arranged between the movable iron core (5) and the static iron core (4), the bottom of the valve cavity (103) is provided with a lug boss (8) which protrudes towards the movable iron core (5) corresponding to the head of the movable iron core (5), an air guide channel (801) which penetrates through the air inlet (102) and the valve cavity (103) is arranged in the middle of the boss (8), the outer side wall of the boss (8) is provided with a branch channel (802) which is distributed in an inclined way, two ends of the branch passage (802) respectively penetrate through the valve cavity (103) and the air guide passage (801), the head of the movable iron core (5) is provided with a concave part matched with the lug boss (8), and the head of the movable iron core (5) is provided with a sealing gasket (51) which can be sleeved outside the boss (8) and is used for sealing the air guide channel (801) and the branch channel (802), and the sealing gasket (51) is fixedly connected with the movable iron core (5).

2. A solenoid valve with fast closing response according to claim 1, wherein a valve rod (7) is disposed at the head of the plunger (5), one end of the valve rod (7) is movably mounted in the plunger (5), and the other end is movably mounted in the boss (8).

3. A fast solenoid valve of a valve closing response according to claim 2, characterized in that a first movable cavity (52) is opened inside the movable iron core (5), one end of the valve rod (7) extends into the first movable cavity (52), and is fixedly connected with a limiting plate (72), a second spring (73) is arranged on one side of the first movable cavity (52) close to the sealing washer (51), and the valve rod (7) is elastically connected with the movable iron core (5) through the second spring (73).

4. A solenoid valve with fast closing response according to claim 3, characterized in that a second movable cavity (803) is provided inside the boss (8) corresponding to the connection between the air guide channel (801) and the branch channel (802), and a movable sealing plug (71) for sealing the air guide channel (801) and the branch channel (802) is provided at the end of the valve rod (7) extending into the second movable cavity (803).

5. A solenoid valve with fast closing response according to claim 4, characterized in that the height of the second movable chamber (803) is equal to twice the thickness of the movable sealing plug (71), and the branch channel (802) and the air guide channel (801) are both located in the lower half of the second movable chamber (803).

6. A solenoid valve with a fast valve closing response according to claim 5, characterized in that the upper half of the boss (8) is bullet-shaped, the inner wall of the sealing washer (51) is in form fit with the boss (8), the air guide channel (801) is located at the central axis of the boss (8), the number of the branch channels (802) is six, and the branch channels are distributed symmetrically around the air guide channel (801).

7. The electromagnetic valve with a fast valve closing response according to claim 1, characterized in that a sealing ring is arranged at the joint of one end of the magnetism isolating pipe (3) extending into the valve cavity (103) and the valve seat (1) so as to enable the magnetism isolating pipe (3) to be connected with the valve seat (1) in a sealing manner.