CN216867550U

CN216867550U - Two-position two-way small direct-acting electromagnetic valve

Info

Publication number: CN216867550U
Application number: CN202220681243.6U
Authority: CN
Inventors: 王成
Original assignee: Yuyao Sperui Water Purification Equipment Co ltd
Current assignee: Yuyao Sperui Water Purification Equipment Co ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-07-01
Anticipated expiration: 2032-03-28

Abstract

The utility model relates to the technical field of valves, and discloses a two-position two-way small direct-acting electromagnetic valve which comprises a valve body, an electromagnetic assembly and an opening and closing assembly. The electromagnetic assembly comprises a first channel, a second channel, an electromagnet, a movable iron core and a static iron core, the first channel and the second channel are symmetrically arranged at the bottom of the valve body, and the electromagnet, the movable iron core and the static iron core are all arranged inside the valve body; the subassembly that opens and shuts includes the piston rod of slidable mounting at quiet iron core middle part, move the upper end of iron core fixed mounting at the piston rod, the valve body bottom is connected with the disk seat, disk seat middle part sealing mounting has foraminiferous baffle, foraminiferous baffle middle part is provided with the perforation, the piston rod bottom is connected with the closing member, the closing member alternates with the valve body diapire and is connected, the bottom and the foraminiferous baffle middle part of closing member slip the laminating, the piston rod outside is connected with first spring, the switch that utilizes the position relation control flap of closing member and foraminiferous baffle is closed, avoid the production in space, the leakproofness of solenoid valve has been improved.

Description

Two-position two-way small direct-acting electromagnetic valve

Technical Field

The utility model relates to the technical field of valves, in particular to a two-position two-way small direct-acting electromagnetic valve.

Background

The two-position two-way electromagnetic valve is industrial equipment 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. The electromagnetic valve is internally provided with a closed cavity, two communicated through pipes are arranged in two directions, a piston is arranged in the middle of the cavity, two electromagnets are arranged on two sides of the cavity, and the magnet coil electrified valve body on which side can be attracted to which side, so that the mechanical motion is controlled by controlling the on-off of the current of the electromagnets. When the direct-acting electromagnetic valve is electrified, the electromagnetic coil generates electromagnetic force to lift the closing member from the valve seat, and the valve is opened; when the power is cut off, the electromagnetic force disappears, the spring presses the closing part on the valve seat, and the valve is closed.

But abrasion is generated between the closing member and the valve seat in long-term use, so that when the closing member is pressed on the valve seat, a gap exists between the closing member and the valve seat, and further, a sealing cavity of the valve leaks; therefore, the existing requirements are not met, and a two-position two-way small direct-acting electromagnetic valve is provided for the requirement.

SUMMERY OF THE UTILITY MODEL

The utility model provides a two-position two-way small direct-acting electromagnetic valve which has the beneficial effects of solving the problem that the sealing cavity of the valve leaks due to the fact that the closing member is pressed on the valve seat through a gap when the closing member is worn between the closing member and the valve seat in long-term use in the background art.

The utility model provides the following technical scheme: the utility model provides a two lead to small-size direct action formula solenoid valves, includes the valve body, still includes the electromagnetism subassembly and opens and shuts the subassembly.

The electromagnetic assembly comprises a first channel, a second channel, an electromagnet, a movable iron core and a static iron core, wherein the first channel and the second channel are symmetrically arranged at the bottom of the valve body;

the subassembly that opens and shuts includes the piston rod of slidable mounting at quiet iron core middle part, moves iron core fixed mounting and at the upper end of piston rod, and the valve body bottom is connected with the disk seat, and the disk seat setting is in the middle of first passageway and second passageway, and disk seat middle part sealing mounting has foraminiferous baffle, and foraminiferous baffle middle part is provided with the perforation, and the piston rod bottom is connected with the closing member, and the closing member alternates with the valve body diapire to be connected, and the bottom and the foraminiferous baffle middle part of closing member are laminated in a sliding way, and the piston rod outside is connected with first spring.

As an alternative scheme of the two-position two-way small direct-acting electromagnetic valve, the utility model comprises the following steps: the first spring activity sets up in the inside of moving the iron core, moves iron core and quiet iron core elasticity laminating.

As an alternative scheme of the two-position two-way small direct-acting electromagnetic valve, the utility model comprises the following steps: the side part of the valve body is provided with an electric connector which is connected with the electromagnet.

As an alternative scheme of the two-position two-way small direct-acting electromagnetic valve, the utility model comprises the following steps: the closing member is set as a solid cylinder, and the middle part of the closing member is transversely provided with a circulation hole.

As an alternative scheme of the two-position two-way small direct-acting electromagnetic valve, the utility model comprises the following steps: the inside activity of quiet iron core is provided with the second spring, and the second spring cover is established at the lower tip of piston rod.

As an alternative scheme of the two-position two-way small direct-acting electromagnetic valve, the utility model comprises the following steps: the sealing ring is installed to the bottom inboard of valve body, and the sealing ring sets up to O shape steel ring, and closure member and sealing ring slip laminating.

As an alternative scheme of the two-position two-way small direct-acting electromagnetic valve, the utility model comprises the following steps: the locating plate is connected with the lateral part of the clapboard with the hole, the locating plate is horizontally arranged, and an interval is arranged between the locating plate and the bottom wall of the valve body.

As an alternative scheme of the two-position two-way small direct-acting electromagnetic valve, the utility model comprises the following steps: the middle part of the positioning plate is provided with a through hole, and the positioning plate is connected with the closing member in an inserting way.

The utility model has the following beneficial effects:

1. according to the two-position two-way small direct-acting electromagnetic valve, the bottom of a piston rod is connected with a closing member, a circulation hole is axially formed in the middle of the closing member, the circulation direction of the circulation hole is the same as that of a first through hole and a second through hole, when a valve body is closed to stop flow, a movable iron core keeps a distance from a static iron core under the influence of first spring force, the piston rod is located above the piston rod, the circulation hole of the closing member is hidden in the valve body, and the lower end of the closing member is attached to a partition plate with a hole, so that the through hole of the partition plate with the hole is blocked, and a valve seat is in a closed flow-stopping state; when the electromagnet is electrified, the electromagnet attracts the starting iron core, so that the movable iron core is attached to the static iron core, the movable iron core drives the piston rod to move downwards, the first spring is compressed and deformed, the closing member slides downwards, the position of the circulation hole of the closing member moves downwards and is overlapped with the through hole of the partition plate with the hole, the inner part of the valve seat is circulated, and the valve is opened; the opening and closing of the valve are controlled by the position relation between the closing member and the partition plate with the hole through the circulation hole formed in the closing member, so that the generation of a gap is avoided, and the sealing performance of the electromagnetic valve is improved.

2. This two small-size direct action formula solenoid valves that lead to, the activity has set up the second spring in quiet iron core inside, and the second spring is connected with the piston rod, and through the setting of second spring, when the piston rod descends, the second spring is elongated and is out of shape, and the electro-magnet outage, the second spring accelerates the piston rod to shift up and reset to improve the closed sensitivity of solenoid valve.

3. This two-way small-size direct action formula solenoid valve has set up the locating plate on foraminiferous baffle lateral part, and when the piston rod removed, the closure member alternates with the locating plate for the closure member only can reciprocate, thereby guarantees that the closure member and perforates the place axis along foraminiferous baffle and removes, has strengthened the leakproofness of solenoid valve.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic sectional view of the valve of the present invention when closed.

Fig. 3 is a schematic sectional view of the valve according to the present invention when opened.

Figure 4 is a schematic perspective view of the closure of the present invention.

FIG. 5 is an enlarged cross-sectional view of the perforated separator of the present invention.

In the figure: 10. a valve body; 100. an electromagnetic assembly; 110. a first channel; 120. a second channel; 130. an electromagnet; 140. connecting a power head; 150. a movable iron core; 160. a stationary core; 200. an opening and closing assembly; 210. a piston rod; 220. a first spring; 230. a second spring; 240. a closure member; 250. a valve seat; 251. a perforated partition plate; 260. a flow-through hole; 270. a seal ring; 280. and (7) positioning the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

The present embodiment is intended to facilitate solving the problem that, in long-term use, wear occurs between the closing member 240 and the valve seat 250, so that when the closing member 240 is pressed against the valve seat 250, a gap exists between the closing member 240 and the valve seat 250, and thus a sealing cavity of the valve is leaked, please refer to fig. 1, fig. 2 and fig. 4, a two-position two-way small-sized direct-acting solenoid valve includes a valve body 10, an electromagnetic assembly 100 and an opening and closing assembly 200, wherein the electromagnetic assembly 100 is used for providing electromagnetic power for the operation of the solenoid valve, and the opening and closing assembly 200 is used for realizing the opening and closing of the solenoid valve. Referring to fig. 1, the valve body 10 is an aluminum alloy housing, which is light and corrosion resistant.

The electromagnetic assembly 100 comprises a first channel 110, a second channel 120, an electromagnet 130, a movable iron core 150 and a static iron core 160, wherein the first channel 110 and the second channel 120 are symmetrically arranged at the bottom of the valve body 10, the electromagnet 130, the movable iron core 150 and the static iron core 160 are all arranged inside the valve body 10, the electromagnet 130 surrounds the outer side of the movable iron core 150, and the movable iron core 150 is arranged above the static iron core 160 in a sliding manner. An electric connector 140 is installed on the side of the valve body 10, and the electric connector 140 is connected with the electromagnet 130, so that the electromagnet 130 is externally connected with a circuit.

The opening and closing assembly 200 comprises a piston rod 210 slidably mounted in the middle of a stationary iron core 160, a movable iron core 150 is fixedly mounted at the upper end of the piston rod 210, the bottom of the valve body 10 is connected with a valve seat 250, the valve seat 250 is arranged between a first channel 110 and a second channel 120, a perforated partition plate 251 is welded in the middle of the valve seat 250 in a sealing mode, a perforation is arranged in the middle of the perforated partition plate 251, the bottom of the piston rod 210 is connected with a closing member 240, the closing member 240 is connected with the bottom wall of the valve body 10 in a penetrating mode, the bottom end of the closing member 240 is in sliding fit with the middle of the perforated partition plate 251, and a first spring 220 is sleeved on the outer side of the piston rod 210. When specifically setting up, see fig. 2, the activity of first spring 220 sets up in the inside of moving iron core 150, and the bottom and the quiet iron core 160 joint of first spring 220 for when moving iron core 150 pushes down, first spring 220 is by compression deformation, and moving iron core 150 and quiet iron core 160 elasticity laminating.

The piston rod 210 and the closing member 240 are both made of precipitation hardening stainless steel, so that the piston rod can keep good stability under special working conditions, and can resist the scouring of high-temperature and corrosive media for a long time. The sealing ring 270 is installed to the bottom inboard of valve body 10, and the sealing ring 270 sets up to O shape steel ring, and closure member 240 and sealing ring 270 sliding fit have improved the leakproofness between valve body 10 and the disk seat 250.

Referring to fig. 4, the closing member 240 is configured as a solid cylinder, and a flow hole 260 is transversely formed in the middle of the closing member 240. The perforated partition 251 is set to be an arc-shaped plate, the perforation of the perforated partition 251 is set on the central axis, when the electromagnet 130 is not electrified, the lower end part of the closing member 240 is attached to the middle part of the perforated partition 251, the diameter of the perforation of the perforated partition 251 is smaller than the width of the closing member 240, therefore, the perforation of the perforated partition 251 is blocked by the lower end of the closing member 240, and the valve is closed to cut off the flow.

In this embodiment: the movable iron core 150 keeps a distance from the static iron core 160 under the influence of the elastic force of the first spring 220, at the moment, the piston rod 210 is positioned above, the circulation hole 260 of the closing member 240 is hidden in the valve body 10, and the lower end part of the closing member 240 is attached to the perforated partition 251, so that the perforated partition 251 is blocked, and the valve seat 250 is in a closed flow-off state; when the electromagnet 130 is electrified, the electromagnet 130 attracts the starting iron core 150, so that the movable iron core 150 is attached to the static iron core 160, the movable iron core 150 drives the piston rod 210 to move downwards, the first spring 220 is compressed and deformed, so that the closing member 240 slides downwards, the position of the circulation hole 260 of the closing member 240 moves downwards and is overlapped with the through hole of the partition 251 with the hole, so that the inside of the valve seat 250 circulates, and the valve is opened; the opening and closing of the valve are controlled by the positional relationship between the closing member 240 and the perforated partition 251 by providing the flow hole 260 in the closing member 240, so that the occurrence of a gap is avoided and the sealing property of the solenoid valve is improved.

Example 2

The present embodiment is intended to facilitate solving the problem that the position of the closing member 240 is shifted due to a faster fluid flow rate when the solenoid valve is in use, and is an improvement made on the basis of embodiment 1, specifically, referring to fig. 5, a positioning plate 280 is welded to a side portion of the partition 251 with a hole, the positioning plate 280 is horizontally disposed, a gap is disposed between the positioning plate 280 and the bottom wall of the valve body 10, and the gap between the positioning plate 280 and the bottom wall of the valve body 10 is greater than the movable distance of the piston rod 210, so as to ensure that the position of the positioning plate 280 is always below the flow through hole 260. The middle of the positioning plate 280 is provided with a through hole, the positioning plate 280 is connected with the closing member 240 in a penetrating manner, and the closing member 240 is always inserted into the positioning plate 240 no matter whether the solenoid valve is electrified or not.

In this embodiment: the positioning plate 280 is arranged on the side of the perforated partition 251, and when the piston rod 210 moves, the closing member 240 is inserted into the positioning plate 280, so that the closing member 240 can only move up and down, thereby ensuring that the closing member 240 does not be influenced by the flow rate of the fluid and moves along the axis of the perforated partition 251, and enhancing the sealing performance of the solenoid valve.

Example 3

In the present embodiment, aiming to solve the problem of insufficient sensitivity of the solenoid valve due to the limited elastic force of the first spring 220 when the solenoid valve is switched from open to closed, the present embodiment is an improvement made on the basis of embodiment 2, specifically, referring to fig. 3, a cavity is disposed inside the stationary iron core 160, a second spring 230 is movably disposed in the cavity, the second spring 230 is sleeved on the lower end portion of the piston rod 210, and the lower end of the second spring 230 is welded to the lower end of the piston rod 210.

In this embodiment: through the arrangement of the second spring 230, when the piston rod 210 descends, the second spring 230 is elongated and deformed, the electromagnet 130 is powered off, the second spring 230 is reset, the second spring 230 accelerates the upward movement and the reset of the piston rod 230, and therefore the sensitivity of the closing control of the electromagnetic valve is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a two lead to small-size direct action formula solenoid valves, includes valve body (10), its characterized in that still includes:

the electromagnetic valve comprises an electromagnetic assembly (100), wherein the electromagnetic assembly (100) comprises a first channel (110), a second channel (120), an electromagnet (130), a movable iron core (150) and a static iron core (160), the first channel (110) and the second channel (120) are symmetrically arranged at the bottom of the valve body (10), the electromagnet (130), the movable iron core (150) and the static iron core (160) are all arranged inside the valve body (10), the electromagnet (130) surrounds the outer side of the movable iron core (150), and the movable iron core (150) is arranged above the static iron core (160) in a sliding mode;

the opening and closing assembly (200) comprises a piston rod (210) which is slidably mounted in the middle of a static iron core (160), a movable iron core (150) is fixedly mounted at the upper end of the piston rod (210), a valve seat (250) is connected to the bottom of the valve body (10), the valve seat (250) is arranged between the first channel (110) and the second channel (120), a perforated partition plate (251) is hermetically mounted in the middle of the valve seat (250), a through hole is formed in the middle of the perforated partition plate (251), a closing member (240) is connected to the bottom of the piston rod (210), the closing member (240) is connected with the bottom wall of the valve body (10) in a penetrating manner, the bottom end of the closing member (240) is in sliding fit with the middle of the perforated partition plate (251), and a first spring (220) is connected to the outer side of the piston rod (210).

2. The two-position two-way small direct-acting solenoid valve according to claim 1, characterized in that: the first spring (220) is movably arranged inside the movable iron core (150), and the movable iron core (150) is elastically attached to the static iron core (160).

3. The two-position two-way small direct-acting solenoid valve according to claim 1, characterized in that: an electric connector (140) is installed on the side of the valve body (10), and the electric connector (140) is connected with the electromagnet (130).

4. The two-position two-way small direct-acting solenoid valve according to claim 1, characterized in that: the closing member (240) is arranged to be a solid cylinder, and the middle of the closing member (240) is transversely provided with a flow hole (260).

5. The two-position two-way small direct-acting solenoid valve according to claim 1, characterized in that: the inner part of the static iron core (160) is movably provided with a second spring (230), and the second spring (230) is sleeved at the lower end part of the piston rod (210).

6. The two-position two-way small direct-acting solenoid valve according to claim 1, characterized in that: the sealing ring (270) is installed to the bottom inboard of valve body (10), sealing ring (270) set up to O shape steel ring, closure member (240) with sealing ring (270) sliding fit.

7. The two-position two-way small direct-acting solenoid valve according to claim 1, characterized in that: the side part of the partition plate (251) with the hole is connected with a positioning plate (280), the positioning plate (280) is horizontally arranged, and a gap is arranged between the positioning plate (280) and the bottom wall of the valve body (10).

8. The two-position two-way small direct-acting solenoid valve according to claim 7, wherein: the middle part of the positioning plate (280) is provided with a through hole, and the positioning plate (280) is connected with the closing member (240) in a penetrating way.