CN107830182A - A kind of magnetic valve with magnet - Google Patents

Abstract

The invention discloses a kind of magnetic valve with magnet, including bonnet, valve seat, quiet valve element, movable valve plug and sealing gasket；The quiet valve element is arranged in the bonnet, and the sealing gasket is arranged in the valve seat；The quiet valve element and the sealing gasket complement each other to form chamber, and the movable valve plug is arranged in the chamber；Magnet coil is provided with the bonnet, there is magnet in the quiet valve element, it is cored in the movable valve plug；The iron core can be by the magnet coil or the attraction, the movable valve plug can be moved in the presence of the magnet coil or the magnet along the inwall of the quiet valve element, and the passage of water chamber is entered so as to open or close fluid out of intake antrum.The magnetic valve of the present invention instead of conventional springs by magnet realizes reset function and holding valve body closing function, and its performance is more preferable, and reliability is higher and also more robust.

Description

A solenoid valve with a magnet

technical field

The invention relates to an electromagnetic valve, in particular to an electromagnetic valve with a magnet.

Background technique

Solenoid valve is a type of actuator that uses electromagnetic control fluid. It can cooperate with different circuits to achieve the desired control, and the control accuracy and flexibility can be guaranteed. In principle, solenoid valves can be divided into direct-acting solenoid valves, step-by-step direct-acting solenoid valves and pilot solenoid valves. Among them, when the direct-acting solenoid valve is energized, the electromagnetic coil generates electromagnetic force to lift the closing member from the valve seat, and the valve opens; when the power is turned off, the electromagnetic force disappears, and the spring presses the closing member on the valve seat, and the valve closes.

At present, the reset of the closing parts of the solenoid valve on the market depends on the spring, and when the fluid passes through the spring for a long time, it will cause the spring to rust and affect the work of the solenoid valve. In addition, the spring will also appear stuck, which will also affect the solenoid valve. The normal work of the solenoid valve results in low reliability of the solenoid valve. Therefore, it is necessary to improve this.

Contents of the invention

In order to solve the above technical problems, the present invention provides a solenoid valve with a magnet, including a valve cover and a valve seat, the valve cover and the valve seat are fixedly connected;

The solenoid valve also includes a static valve core, a moving valve core and a sealing gasket; the static valve core is arranged in the valve cover, and the sealing gasket is arranged in the valve seat; the static valve core and the The sealing pads cooperate with each other to form a chamber, and the movable valve core is arranged in the chamber;

An electromagnetic coil is arranged inside the valve cover, the static valve core includes a magnet, and the moving valve core includes an iron core; the iron core can be attracted by the electromagnetic coil or the magnet, and the moving valve core can be The electromagnetic coil or the magnet moves in the chamber.

Further, the electromagnetic coil and the magnet are arranged on both sides of the iron core.

Further, the static valve core also includes a static valve core seat, and the magnet is arranged in the static valve core seat.

Further, the static valve core is a hollow cylinder with an opening at one end, and a stepped annular boss is provided at one end of the opening.

Further, the moving valve core also includes a moving valve core rod and a sealing plug.

Further, the movable valve core rod is cylindrical, one end of the movable valve core rod is provided with a boss, and the other end of the movable valve core rod is provided with a fixing protrusion; the sealing plug is arranged on the fixed on the protrusion, and interference fit with the fixed protrusion; the iron core is arranged in the end of the movable valve core rod close to the fixed protrusion.

Further, the sealing plug is a rubber plug.

Further, the sealing gasket includes a sealing seat and a sealing ring, the sealing seat is provided with a groove for fixing the sealing ring, and the sealing ring is fixedly arranged in the groove.

Further, the sealing seat is also provided with a through hole, and the through hole is used for fluid flow.

Further, the through hole includes a first through hole and a second through hole, the cross section of the first through hole is larger than the cross section of the second through hole, the cross section of the sealing plug is larger than that of the second through hole section.

Further, the boss of the static valve core seat closely fits with the edge of the sealing ring.

Further, a water inlet chamber and a water outlet chamber are provided in the valve seat, and a partition is provided between the water inlet chamber and the water outlet chamber.

Further, when the solenoid valve is closed, the sealing ring and the partition plate are closely matched.

Further, the fluid in the water inlet chamber can flow into the chamber through the first through hole and the second through hole.

Further, the valve seat is provided with at least one water inlet connected to the water inlet chamber and at least one water outlet connected to the water outlet chamber.

Further, a plurality of guide sleeves are provided between the valve cover and the static valve core.

Further, the valve cover and the valve seat are fastened by a plurality of screws.

The solenoid valve has two working states, which are closed state and open state, and its specific working principle is:

When the solenoid valve is in the closed state, the solenoid coil is not energized. The fluid enters the water inlet chamber in the valve seat through the water inlet, and then enters the cavity formed by the cooperation of the static valve core and the sealing gasket through the through hole on the sealing seat; at this time, the magnet in the static valve core attracts the iron core in the moving valve core , so that under the gravitational force of the magnet, the static valve core and the gasket are sealed; and there is water pressure in the chamber formed by the cooperation of the static valve core and the gasket, which completely seals the entire gasket and the water inlet chamber, so that the fluid cannot flow from the inlet The water chamber flows in and out of the water chamber and discharges the solenoid valve.

When the solenoid valve is in the open state, the solenoid coil is energized. The fluid enters the water inlet cavity in the valve seat through the water inlet, and then enters the cavity formed by the cooperation of the static valve core and the gasket through the through hole on the sealing seat; Attraction, so under the magnetic force of the electromagnetic coil, the attracting valve core moves, and the water inlet water pressure pushes the gasket to move, and the fluid can enter the water outlet chamber from the water inlet chamber, so that the solenoid valve can conduct water.

The electromagnetic valve of the present invention replaces the traditional spring with a magnet to realize the reset function and the function of keeping the valve body closed. It performs better, is more reliable and is also more durable.

Description of drawings

In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present invention or in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Apparently, the appended The drawings are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the sectional view of electromagnetic valve described in the present invention;

Fig. 2 is a schematic diagram of the explosion structure of the solenoid valve of the present invention.

Among them, the corresponding marks of the drawings in the figure are: 1-bonnet, 2-valve seat, 201-water inlet chamber, 202-water outlet chamber, 203-baffle, 204-water inlet, 205-water outlet, 3-static valve Core, 301-static valve core seat, 302-magnet, 4-moving valve core, 401-moving valve core rod, 402-iron core, 403-sealing plug, 5-sealing gasket, 501-sealing seat, 502-sealing ring , 503-groove, 504-first through hole, 505-second through hole, 6-guide sleeve.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiment is only one embodiment of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Reference herein to "one embodiment" or "an embodiment" refers to a particular feature, structure or characteristic that can be included in at least one implementation of the present invention. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of these features. Also, the terms "first", "second", etc. are used to distinguish similar items and not necessarily to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein.

Embodiment one:

As shown in Figures 1 and 2, this embodiment provides a solenoid valve with a magnet, including a valve cover 1 and a valve seat 2, the valve cover 1 and the valve seat 2 are fixedly connected,

The solenoid valve also includes a static valve core 3, a moving valve core 4 and a sealing gasket 5; the static valve core 3 is arranged in the valve cover 1, and the sealing gasket 5 is arranged in the valve seat 2; The static valve core 3 and the sealing gasket 5 cooperate to form a chamber, and the movable valve core 4 is arranged in the chamber;

The valve cover 1 is provided with an electromagnetic coil, the static valve core 3 includes a magnet 302, and the moving valve core 4 includes an iron core 402; the iron core 402 can be attracted by the electromagnetic coil or the magnet 302, The movable valve core 4 can move in the chamber under the action of the electromagnetic coil or the magnet 302 .

Further, the electromagnetic coil and the magnet 302 are arranged on the upper and lower sides of the iron core 402 .

Further, the static valve core 3 further includes a static valve core seat 301 , and the magnet 302 is arranged in the static valve core seat 301 .

Further, the static valve core 3 is a hollow cylinder with an opening at one end, and a stepped annular boss is provided at one end of the opening.

Further, the moving valve core 4 also includes a moving valve core rod 401 and a sealing plug 403 .

Further, the moving valve core rod 401 is cylindrical, one end of the moving valve core rod 401 is provided with a boss, and the other end of the moving valve core rod 401 is provided with a fixing protrusion; the sealing plug 403 is set The iron core 402 is arranged on the fixed protrusion and is interference-fitted with the fixed protrusion; the iron core 402 is disposed in the movable valve core rod 401 at one end close to the fixed protrusion.

Further, the sealing plug 403 is a rubber plug.

Further, the sealing gasket 5 includes a sealing seat 501 and a sealing ring 502, the sealing seat 501 is provided with a groove 503 for fixing the sealing ring 502, and the sealing ring 502 is fixedly arranged in the groove 503 Inside.

Further, the sealing seat 501 is also provided with a through hole, and the through hole is used for fluid flow.

Further, the through holes include a first through hole 504 and a second through hole 505, the cross section of the first through hole 504 is larger than the cross section of the second through hole 505, and the cross section of the sealing plug 403 is larger than the cross section of the second through hole 505. The cross section of the second through hole 505 .

Further, the boss of the static valve core seat 301 is in tight fit with the edge of the sealing ring 502 .

Further, the valve seat 2 is provided with a water inlet chamber 201 and a water outlet chamber 202 , and a partition 203 is provided between the water inlet chamber 201 and the water outlet chamber 202 .

Further, when the electromagnetic valve is closed, the sealing ring 502 and the partition plate 203 are closely matched.

Further, the fluid in the water inlet chamber 201 can flow into the chamber through the first through hole 504 and the second through hole 505 .

Further, the valve seat 2 is provided with a water inlet 204 communicating with the water inlet chamber 201 and a water outlet 205 communicating with the water outlet chamber 202 .

As shown in FIG. 2 , the water inlet 204 and the water outlet 205 are coaxial, and both are arranged in the horizontal direction of the valve seat 2 .

Further, a plurality of guide sleeves 6 are provided between the valve cover 1 and the static valve core 3 .

Further, the valve cover 1 and the valve seat 2 are fastened by a plurality of screws.

The solenoid valve has two working states, which are closed state and open state, and its specific working principle is:

When the solenoid valve is in the closed state, the solenoid coil is not energized. The fluid enters the water inlet cavity 201 in the valve seat 2 through the water inlet 204, and then enters the cavity formed by the cooperation of the static valve core 3 and the gasket 5 through the through hole on the sealing seat 501; at this time, the magnet 302 in the static valve core 3 Attract the iron core 402 in the moving spool 4, so that under the gravitational force of the magnet 302, the static spool 3 and the gasket 5 are sealed; and there is water pressure in the chamber formed by the cooperation of the static spool 3 and the gasket 5. The entire sealing gasket 5 is completely sealed with the water inlet chamber 201 (as shown in FIG. 1 ), so fluid cannot flow from the water inlet chamber 201 into the water outlet chamber 202 to discharge the electromagnetic valve.

When the solenoid valve is in the open state, the solenoid coil is energized. The fluid enters the water inlet cavity 201 in the valve seat 2 through the water inlet 204, and then enters the cavity formed by the cooperation of the static valve core 3 and the gasket 5 through the through hole on the sealing seat 501; at this time, the magnetic force of the electromagnetic coil is greater than that of the magnet 302. Magnetic force, the iron core 402 is attracted by the electromagnetic coil, so under the magnetic force of the electromagnetic coil, the valve core 4 is attracted to move upward, and the water inlet pressure pushes the gasket 5 to move upward, and the fluid can enter the water outlet chamber from the water inlet chamber 201 202, so that the solenoid valve can conduct water.

Embodiment two:

1 and 2, this embodiment provides a solenoid valve with a magnet, including a valve cover 1 and a valve seat 2, the valve cover 1 and the valve seat 2 are fixedly connected,

The solenoid valve also includes a static valve core 3, a moving valve core 4 and a sealing gasket 5; the static valve core 3 is arranged in the valve cover 1, and the sealing gasket 5 is arranged in the valve seat 2; The static valve core 3 and the sealing gasket 5 cooperate to form a chamber, and the movable valve core 4 is arranged in the chamber;

The valve cover 1 is provided with an electromagnetic coil, the static valve core 3 includes a magnet 302, and the moving valve core 4 includes an iron core 402; the iron core 402 can be attracted by the electromagnetic coil or the magnet 302, The movable valve core 4 can move in the chamber under the action of the electromagnetic coil or the magnet 302 .

Further, the electromagnetic coil and the magnet 302 are arranged on the upper and lower sides of the iron core 402 .

Further, the static valve core 3 further includes a static valve core seat 301 , and the magnet 302 is arranged in the static valve core seat 301 .

Further, the static valve core 3 is a hollow cylinder with an opening at one end, and a stepped annular boss is provided at one end of the opening.

Further, the moving valve core 4 also includes a moving valve core rod 401 and a sealing plug 403 .

Further, the moving valve core rod 401 is cylindrical, one end of the moving valve core rod 401 is provided with a boss, and the other end of the moving valve core rod 401 is provided with a fixing protrusion; the sealing plug 403 is set The iron core 402 is arranged on the fixed protrusion and is interference-fitted with the fixed protrusion; the iron core 402 is disposed in the movable valve core rod 401 at one end close to the fixed protrusion.

Further, the sealing plug 403 is a rubber plug.

Further, the sealing gasket 5 includes a sealing seat 501 and a sealing ring 502, the sealing seat 501 is provided with a groove 503 for fixing the sealing ring 502, and the sealing ring 502 is fixedly arranged in the groove 503 Inside.

Further, the sealing seat 501 is also provided with a through hole, and the through hole is used for fluid flow.

Further, the through holes include a first through hole 504 and a second through hole 505, the cross section of the first through hole 504 is larger than the cross section of the second through hole 505, and the cross section of the sealing plug 403 is larger than the cross section of the second through hole 505. The cross section of the second through hole 505 .

Further, the boss of the static valve core seat 301 is in tight fit with the edge of the sealing ring 502 .

Further, the valve seat 2 is provided with a water inlet chamber 201 and a water outlet chamber 202 , and a partition 203 is provided between the water inlet chamber 201 and the water outlet chamber 202 .

Further, when the electromagnetic valve is closed, the sealing ring 502 and the partition plate 203 are closely matched.

Further, the fluid in the water inlet chamber 201 can flow into the chamber through the first through hole 504 and the second through hole 505 .

Further, the valve seat 2 is provided with two water inlets communicating with the water inlet chamber 201 and two water outlets communicating with the water outlet chamber 202 .

Further, the two water inlets and the two water outlets are respectively arranged on the four surfaces of the valve seat 2 .

Further, the two water inlets are coaxial, the two water outlets are coaxial, the axis of the water inlet is perpendicular to the axis of the water outlet; or, the axes of the two water inlets are vertical, the The axes of the two water outlets are vertical, and one of the water inlets is coaxial with one of the water outlets.

Further, a plurality of guide sleeves 6 are provided between the valve cover 1 and the static valve core 3 .

Further, the valve cover 1 and the valve seat 2 are fastened by a plurality of screws.

The solenoid valve has two working states, which are closed state and open state, and its specific working principle is:

When the solenoid valve is in the closed state, the solenoid coil is not energized. The fluid enters the water inlet cavity 201 in the valve seat 2 through the water inlet, and then enters the cavity formed by the cooperation of the static valve core 3 and the sealing gasket 5 through the through hole on the sealing seat 501; at this time, the magnet 302 in the static valve core 3 attracts The iron core 402 in the movable valve core 4, so that under the gravitational force of the magnet 302, the static valve core 3 and the gasket 5 are sealed; and there is water pressure in the chamber formed by the cooperation of the static valve core 3 and the gasket 5, and the entire The gasket 5 is completely sealed with the water inlet chamber 201 (as shown in FIG. 1 ), so the fluid cannot flow from the water inlet chamber 201 into the water outlet chamber 202 to discharge the electromagnetic valve.

When the solenoid valve is in the open state, the solenoid coil is energized. The fluid enters the water inlet cavity 201 in the valve seat 2 through the water inlet, and then enters the cavity formed by the cooperation of the static valve core 3 and the gasket 5 through the through hole on the sealing seat 501; at this time, the magnetic force of the electromagnetic coil is greater than that of the magnet 302 , the iron core 402 is attracted by the electromagnetic coil, so under the magnetic force of the electromagnetic coil, the movable valve core 4 is attracted to move upward, and the water inlet water pressure pushes the sealing gasket 5 to move upward, and the fluid can enter the water outlet chamber 202 from the water inlet chamber 201 Inside, so that the solenoid valve can lead through the water.

The above description is a preferred embodiment of the present invention, and it should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications are also considered Be the protection scope of the present invention.

Claims (10)

1. A solenoid valve with a magnet, comprising a valve cover (1) and a valve seat (2), the valve cover (1) and the valve seat (2) are fixedly connected, characterized in that, The solenoid valve also includes a static valve core (3), a moving valve core (4) and a gasket (5); the static valve core (3) is set inside the valve cover (1), and the gasket ( 5) Set in the valve seat (2); the static valve core (3) and the sealing gasket (5) cooperate with each other to form a cavity, and the moving valve core (4) is set in the cavity; The valve cover (1) is provided with an electromagnetic coil, the static valve core (3) includes a magnet (302), and the moving valve core (4) includes an iron core (402); the iron core (402) can Attracted by the electromagnetic coil or the magnet (302), the movable valve core (4) can move in the chamber under the action of the electromagnetic coil or the magnet (302). 2. A solenoid valve with a magnet according to claim 1, characterized in that, the static valve core (3) also includes a static valve core seat (301), and the magnet (302) is arranged on the Inside the static spool seat (301). 3. A solenoid valve with a magnet according to claim 1, characterized in that, the moving valve core (4) also includes a moving valve core rod (401) and a sealing plug (403); the moving valve One end of the core rod (401) is provided with a fixed protrusion; the sealing plug (403) is arranged on the fixed protrusion, and has an interference fit with the fixed protrusion; the iron core (402) is disposed on the fixed protrusion The end of the moving valve core rod (401) close to the fixing protrusion. 4. A solenoid valve with a magnet according to claim 1, characterized in that the gasket (5) includes a sealing seat (501) and a sealing ring (502), and the sealing seat (501) is A groove (503) for fixing the sealing ring (502) is provided, and the sealing ring (502) is fixedly arranged in the groove (503). 5 . The solenoid valve with magnet according to claim 1 , characterized in that, the sealing seat ( 501 ) is further provided with a through hole, and the through hole is used for fluid flow. 5 . 6. The solenoid valve with magnet according to any one of claims 1, 2 or 4, characterized in that, the static valve core seat (301) and the sealing ring (502) are closely matched. 7. A solenoid valve with a magnet according to claim 1, characterized in that, the valve seat (2) is provided with a water inlet chamber (201) and a water outlet chamber (202), and the water inlet chamber A partition (203) is provided between (201) and the water outlet chamber (202). 8. A solenoid valve with a magnet according to any one of claims 4 or 7, characterized in that, when the solenoid valve is closed, the sealing ring (502) and the partition (203) are tightly Cooperate. 9. A solenoid valve with a magnet according to any one of claims 1 or 7, characterized in that the valve seat (2) is provided with at least one valve communicating with the water inlet chamber (201) The water inlet (204) and at least one water outlet (205) communicated with the water outlet chamber (202). 10 . The solenoid valve with magnet according to claim 1 , characterized in that, a plurality of guide sleeves ( 6 ) are arranged between the valve cover ( 1 ) and the static valve core ( 3 ). 11 .