CN210661592U - Novel normally open type solenoid valve - Google Patents
Novel normally open type solenoid valve Download PDFInfo
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- CN210661592U CN210661592U CN201920534330.7U CN201920534330U CN210661592U CN 210661592 U CN210661592 U CN 210661592U CN 201920534330 U CN201920534330 U CN 201920534330U CN 210661592 U CN210661592 U CN 210661592U
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- iron core
- normally open
- movable iron
- valve body
- sealing element
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Abstract
The utility model discloses a novel normally open type solenoid valve relates to solenoid valve equipment field. The novel normally open type solenoid valve includes: the electromagnetic valve comprises a valve body, a movable iron core, a fixed iron core, an electromagnetic ring, an O-shaped ring, a magnetism isolating pipe and a normally open spring; the fixed iron core is provided with a channel for medium circulation, the fixed iron core is arranged on the valve body, and the outlet of the valve body is communicated with the channel; the first end of the normally open spring is embedded in the upper end part of the fixed iron core, the second end of the normally open spring is embedded in the lower end part of the movable iron core, and the normally open spring can upwards push the movable iron core; the magnetism isolating pipe is sleeved on the movable iron core and the fixed iron core and is in threaded connection with the valve body; the electromagnetic valve of the technical scheme has the advantages that the overall structure of the electromagnetic valve is simplified through the design that the movable iron core blocks the flow port, the noise is reduced due to the fact that the structure is simple, the number of parts moving inside is reduced, the service life is prolonged, and production cost is effectively reduced.
Description
Technical Field
The utility model relates to a solenoid valve equipment field especially relates to a novel normally open type solenoid valve.
Background
The solenoid valve is an actuator in an automatic control system and is used for controlling the opening and closing of fluid and changing the direction of the fluid. In the prior art, a normally open electromagnetic valve is designed to have a flow port on a valve body, and a connecting rod is driven by the downward impact force of an iron core to place a sealing element on a main valve port to play a role in sealing;
for example, the normally open solenoid valve disclosed in the chinese invention patent CN 104633139 a belongs to the field of valves, solves the problem of excessive impact on the valve rod during operation, and the technical scheme for solving the problem mainly comprises a valve body, a core iron and a valve rod, the valve body is provided with a first valve cavity, a second valve cavity and a throttle orifice communicating the first valve cavity and the second valve cavity, the valve rod is arranged in the first valve cavity and fixed relative to the core iron, the second valve cavity is internally provided with a throttling element for changing the flow of the throttling orifice, the valve rod can pass through the throttling port to support the throttling element to open the throttling port, the cavity wall of the first valve cavity is provided with a first limiting surface, the throttle orifice is arranged on the first limiting surface, a limiting piece is arranged in the first valve cavity and is fixed relative to the core iron, the limiting piece is provided with a second limiting surface, and the second limiting surface is opposite to the first limiting surface and can be abutted against the first limiting surface.
Also, for example, chinese patent CN 105972249 a discloses a normally open solenoid valve. The normally open electromagnetic valve provided by the invention comprises a valve seat, a valve connecting sleeve, a fluid valve block and a one-way valve sealing closing element, wherein the valve seat comprises a valve main sealing seat, a valve seat boss and a valve seat bottom; the valve seat boss is connected with the valve connecting sleeve in an interference fit manner, and the bottom of the valve seat is connected with the fluid valve block in an interference fit manner; the valve connecting sleeve is provided with a first channel, the bottom of the valve seat is provided with a second channel communicated with the first channel, and the one-way valve sealing closing element is arranged in the second channel.
However, the electromagnetic valve in the prior art has a complex structure, generates relatively large noise when in use, and has relatively high production cost and relatively short service life.
SUMMERY OF THE UTILITY MODEL
First, technical problem to be solved
The utility model aims at the above-mentioned problem that prior art exists, especially provide a novel normally open type solenoid valve, solve that current solenoid valve structure is complicated, noise in use is great, manufacturing cost is higher, the shorter problem of life-span.
Second, technical scheme
In order to solve the technical problem, the utility model provides a novel normally open solenoid valve, include: the electromagnetic valve comprises a valve body, a movable iron core, a fixed iron core, an electromagnetic ring, an O-shaped ring, a magnetism isolating pipe and a normally open spring;
the stationary core is provided with a channel for the circulation of a medium,
the fixed iron core is arranged on the valve body, and the outlet of the valve body is communicated with the channel;
the O-shaped ring is arranged between the valve body and the fixed iron core, so that the joint of the fixed iron core and the valve body is in a sealed state, and a circulating medium is prevented from leaking from the joint of the channel and the outlet;
the first end of the normally open spring is embedded in the upper end part of the fixed iron core, the second end of the normally open spring is embedded in the lower end part of the movable iron core, and the normally open spring can upwards push the movable iron core;
the magnetism isolating pipe is sleeved on the movable iron core and the fixed iron core and is in threaded connection with the valve body;
the electromagnetic ring is sleeved on the magnetism isolating pipe, and the electromagnetic ring can control the movable iron core to move downwards.
The electromagnetic valve of the technical scheme has the advantages that the overall structure of the electromagnetic valve is simplified through the design that the movable iron core blocks the flow port, the noise is reduced due to the fact that the structure is simple, the number of parts moving inside is reduced, the service life is prolonged, and production cost is effectively reduced.
The movable iron core is provided with a movable iron core cavity, an upper sealing element, a sealing element spring and a lower sealing element;
go up sealing member, sealing member spring and lower sealing member and inlay in movable iron core cavity in proper order, and sealing member can be in movable iron core cavity axial slip down, and the sealing member spring can promote sealing member lapse down.
The electromagnetic valve of the technical scheme further reduces the noise of the movable iron core when sliding up and down through the design of the upper sealing element and the lower sealing element, and the lower sealing element is further buffered through the design of the lower sealing element in the axial sliding mode in the cavity of the movable iron core, so that the service life is prolonged.
Wherein, first recess has been seted up to the upper end of fixed iron core, and first recess is embedded to have a branch magnetic ring.
The electromagnetic valve of the technical scheme reduces electromagnetic interference and reduces noise generated by alternating current through the design of the sub-magnetic rings.
Wherein, normally open spring first end inlays in first recess.
Wherein, the tip is equipped with the second recess under the movable core, and normally open spring second end inlays in the second recess.
The electromagnetic valve of the technical scheme has the advantages that the electromagnetic valve is respectively signed on the first groove and the second groove through the normally open spring, so that the normally open spring, the fixed iron core and the movable iron core are always in the coaxial state, and the stability of the electromagnetic valve is improved.
Wherein, the movable iron core is provided with a pressure relief hole, and the pressure relief hole is communicated with the movable iron core cavity.
The design of this technical scheme's solenoid valve through the pressure release hole makes lower sealing member slide more smoothly in movable iron core cavity.
Wherein, the movable iron core is provided with a pressure relief groove.
The electromagnetic valve of the technical scheme enables the movable iron core to slide more smoothly on the magnetism isolating pipe through the design of the pressure relief groove.
Wherein, valve body exit is equipped with the boss, and O type circle cover is located on the boss.
The electromagnetic valve of the technical scheme has the advantages that the installation of the O-shaped ring is more stable through the design of the boss, and the sealing effect is further improved.
Drawings
Fig. 1 is an overall exploded view of the novel normally open solenoid valve of the present invention;
fig. 2 is an exploded view of the movable iron core of the novel normally open solenoid valve of the present invention;
fig. 3 is a sectional view of the movable iron core of the novel normally open solenoid valve of the present invention;
fig. 4 is a schematic diagram of a movable iron core of the novel normally open solenoid valve of the present invention;
fig. 5 is a sectional view of the fixed iron core of the novel normally open solenoid valve of the present invention;
fig. 6 is the valve body schematic diagram of the novel normally open type solenoid valve of the present invention
In the figure: 1 is a valve body; 2 is a movable iron core; 3 is a fixed iron core; 4 is an electromagnetic coil; 5 is an O-shaped ring; 6 is a magnetism isolating pipe; 7 is a normally open spring; 11 is a boss; 21 is a movable iron core cavity; 22 is an upper seal member; 23 is a seal spring; 24 is a lower seal; 25 is a second groove; 31 is a channel; and 32 is a first groove.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Example one
The structure of the novel normally open solenoid valve of the present embodiment includes, as shown in fig. 1 to 6: the electromagnetic valve comprises a valve body 1, a movable iron core 2, a fixed iron core 3, an electromagnetic ring 4, an O-shaped ring 5, a magnetism isolating pipe 6 and a normally open spring 7;
the stationary core 3 is provided with channels 31 for the circulation of a medium,
a boss 11 is arranged at the outlet of the valve body 1, the O-shaped ring 5 is sleeved on the boss 11,
the fixed iron core 3 is arranged on the valve body 1 and is abutted against the O-shaped ring 5, the O-shaped ring 5 is pressed between the valve body 1 and the fixed iron core 3, and after the outlet of the valve body 1 is communicated with the channel 31, a circulating medium cannot leak from the joint of the channel 31 and the outlet;
the upper end part of the fixed iron core 3 is provided with a sub-magnetic ring 33 embedded in a first groove 32, and the first end of the normally open spring 7 is also embedded in the first groove 32 at the upper end part of the fixed iron core 3;
the tip is equipped with second recess 25 under the activity iron core 2, and normally open spring 7 second end inlays in second recess 25, makes fixed iron core 3, activity iron core 2 and normally open spring 7 keep on same axis, and activity iron core 2 can keep the axiality of fixed iron core 3 and activity iron core 2 all the time when up-and-down motion like this, and stability is increased also improves the life-span.
The normally open spring 7 can push the movable iron core 2 upwards under the action of self elasticity, so that the movable iron core 2 is always in a separation state with the fixed iron core 3;
the magnetism isolating pipe 6 is sleeved on the movable iron core 2 and the fixed iron core 3, and the magnetism isolating pipe 6 is in threaded connection with the valve body 1;
the electromagnetic ring 4 is sleeved on the magnetism isolating pipe 6, and the electromagnetic ring 4 can control the movable iron core 2 to move downwards.
When the electromagnetic coil 4 is electrified, the electromagnetic coil 4 generates magnetic force, the movable iron core 2 moves downwards under the action of the magnetic force of the electromagnetic coil 4 to block the channel 11 of the fixed iron core 3, so that the electromagnetic valve is in a closed state;
when the electromagnetic coil 4 is powered off, the movable iron core 2 is not influenced by the electromagnetic coil 4, and the movable iron core 2 is pushed upwards by the normally open spring 7 to fix the iron core 3, so that the electromagnetic valve is in an open state.
In order to increase the blocking effect of the movable iron core 2 on the channel 31, the movable iron core 2 is provided with a movable iron core cavity 21, an upper sealing element 22, a sealing element spring 23 and a lower sealing element 24;
the upper sealing element 22, the sealing element spring 23 and the lower sealing element 24 are sequentially embedded in the movable core cavity 21, the lower sealing element 24 can axially slide in the movable core cavity 21, and the sealing element spring 23 can push the lower sealing element 24 to slide downwards.
When the movable iron core 2 is downward contacted with the fixed iron core 3, the lower sealing member 24 blocks the channel 31, and the sealing member spring 23 pushes the lower sealing member 24 to be close to the channel 31;
and the upper sealing member 22 plays a role of shock absorption for the movable iron core 2 when the normally open spring 7 pushes the movable iron core 2 to move upwards.
Example two
On the basis of the above embodiment, in order to make the lower sealing member 24 slide more smoothly in the movable core cavity 21, the movable core 2 may further include a pressure relief hole 26, the pressure relief hole 26 is communicated with the movable core cavity 21, so that the movable core cavity 21 is balanced with the external air pressure, and thus the lower sealing member 24 does not receive the resistance of the air pressure when the movable core cavity 21 slides, and the sliding of the lower sealing member 24 in the movable core cavity 21 is also smoother.
In order to ensure that the movable iron core 2 slides more smoothly in the magnetism isolating pipe 6, the outer surface of the movable iron core 2 is also provided with a pressure relief groove 27, so that the movable iron core 2 is balanced with the external air pressure, and the movable iron core 2 cannot be subjected to air pressure resistance when sliding in the magnetism isolating pipe 6, so that the movable iron core 2 slides more smoothly in the magnetism isolating pipe 6.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a novel normal open type solenoid valve which characterized in that, novel normal open type solenoid valve includes: the electromagnetic valve comprises a valve body (1), a movable iron core (2), a fixed iron core (3), an electromagnetic ring (4), an O-shaped ring (5), a magnetism isolating pipe (6) and a normally open spring (7);
the fixed iron core (3) is provided with a channel (31) for medium circulation,
the fixed iron core (3) is arranged on the valve body (1), and an outlet of the valve body (1) is communicated with the channel (31);
the O-shaped ring (5) is arranged between the valve body (1) and the fixed iron core (3), so that the joint of the fixed iron core (3) and the valve body (1) is in a sealed state, and a circulating medium is prevented from leaking from the joint of the channel (31) and the outlet;
the first end of the normally open spring (7) is embedded in the upper end part of the fixed iron core (3), the second end of the normally open spring is embedded in the lower end part of the movable iron core (2), and the normally open spring (7) can upwards push the movable iron core (2);
the magnetism isolating pipe (6) is sleeved on the movable iron core (2) and the fixed iron core (3), and the magnetism isolating pipe (6) is in threaded connection with the valve body (1);
the electromagnetic ring (4) is sleeved on the magnetism isolating pipe (6), and the electromagnetic ring (4) can control the movable iron core (2) to move downwards.
2. The novel normally open type electromagnetic valve according to claim 1, characterized in that the movable iron core (2) is provided with a movable iron core cavity (21), and an upper sealing element (22), a sealing element spring (23) and a lower sealing element (24) are embedded in the movable iron core cavity (21);
the upper sealing element (22), the sealing element spring (23) and the lower sealing element (24) are sequentially embedded in the movable iron core cavity (21), the lower sealing element (24) can axially slide in the movable iron core cavity (21), and the sealing element spring (23) can push the lower sealing element (24) to downwards slide.
3. A novel normally open type electromagnetic valve according to claim 2, characterized in that the upper end of the fixed iron core (3) is provided with a first groove (32), and the first groove (32) is embedded with a sub-magnetic ring (33).
4. A novel normally open type solenoid valve according to claim 3, characterized in that the first end of the normally open spring (7) is embedded in the first groove (32).
5. The novel normally open type electromagnetic valve according to claim 4, characterized in that the lower end of the movable iron core (2) is provided with a second groove (25), and the second end of the normally open spring (7) is embedded in the second groove (25).
6. A novel normally open type electromagnetic valve according to claim 5, characterized in that the movable iron core (2) is provided with a pressure relief hole (26), and the pressure relief hole (26) is communicated with the movable iron core cavity (21).
7. A new type of normally open solenoid valve according to claim 6, characterized in that said movable core (2) is provided with pressure relief slots (27).
8. A novel normally open type electromagnetic valve according to claim 7, characterized in that a boss (11) is provided at the outlet of the valve body (1), and the O-ring (5) is sleeved on the boss (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920534330.7U CN210661592U (en) | 2019-04-19 | 2019-04-19 | Novel normally open type solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920534330.7U CN210661592U (en) | 2019-04-19 | 2019-04-19 | Novel normally open type solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210661592U true CN210661592U (en) | 2020-06-02 |
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ID=70840871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920534330.7U Active CN210661592U (en) | 2019-04-19 | 2019-04-19 | Novel normally open type solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210661592U (en) |
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2019
- 2019-04-19 CN CN201920534330.7U patent/CN210661592U/en active Active
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