Miniature brass electromagnetic valve

Abstract

The utility model discloses a miniature brass electromagnetic valve, which relates to the technical field of electromagnetic valves, and comprises a valve body, a valve cover is arranged above the valve body, a coil component is arranged above the valve cover, a static iron core is arranged on the inner side of the coil component, a movable iron core is arranged below the static iron core, and the movable iron core is arranged below the movable iron core. A valve cover sealing gasket is installed below the valve body, a sealing piece is installed on the upper side of the valve cover sealing gasket, a buffer spring is installed on one side of the sealing piece, the electromagnetic valve achieves the opening and closing function through electromagnetic driving, a movable iron core is connected with a valve element, and when a coil is powered on, the movable iron core is attracted to move upwards to open a valve port; when power is off, the reset spring pushes the movable iron core, the movable iron core is reset, and the valve port is closed, so that the size of the electromagnetic valve is effectively reduced, meanwhile, the operation sensitivity and the response speed of the electromagnetic valve are guaranteed, accurate adjustment of fluid flow is achieved, and the requirement for precise industrial application is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electromagnetic valve, concretely is a kind of micro-brass electromagnetic valve. BACKGROUND

[0002] Micro-brass electromagnetic valve is a kind of device using electromagnetic principle to control fluid flow, usually used for the automation control of liquid or gas, micro-brass electromagnetic valve has the advantages such as small size, light weight, response speed fast, low power consumption and reliability low, they are widely used in industrial automation, household appliances, intelligent irrigation, medical equipment and other fields.

[0003] Prior art CN221943337U discloses micro electromagnetic valve, technical scheme discloses "the utility model relates to micro electromagnetic valve, including the valve shell of micro electromagnetic valve, the cylindrical ring of coil framework and protection sleeve pipe is inserted and fixed in valve shell, and the lower end of line protection sleeve pipe is formed with the threaded connection sleeve of section L type;The lower end surface of valve shell is abutted with valve seat, and the upper end surface of valve seat is formed with the air exchange concave table, and threaded connection sleeve is screwed and fixed in the air exchange concave table of valve seat, and the lower end of valve seat is inserted and fixed with air inlet seat, and air inlet hole and air outlet hole are formed on air inlet seat respectively, and air inlet valve hole is formed on valve seat opposite to moving iron core, and air inlet seat is formed with the air passage groove that is communicated with air inlet hole and air inlet valve hole, and the air passage hole is formed on valve seat opposite to air outlet hole.This electromagnetic valve restructures the structure of the lower end of moving iron core and changes the shape of reset spring, to further expand the clearance of air release, conducive to the quick realization of air release when micro electromagnetic valve is powered off.

[0004] Although prior art has disclosed micro electromagnetic valve, there are still some deficiencies, specifically, in actual production operation process, the moving iron core of micro-brass electromagnetic valve is susceptible to external magnetic field interference, to cause control precision to drop, and reset spring is susceptible to fatigue deformation after long time use, to affect the tightness of valve port closure, difficult to meet the needs of high-precision industrial applications. SUMMARY

[0005] The utility model aims at providing a kind of micro-brass electromagnetic valve to solve the problems in prior art.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a micro brass electromagnetic valve, the micro brass electromagnetic valve includes the guide pipe part, the guide pipe part inside installation has the moving iron core part, the guide pipe part outside sleeve has the coil part, the coil part below installation has the valve cover, the valve cover below installation has the valve body, the valve body below installation has the valve cover gasket, the four corners of valve cover and valve body are provided with the threaded hole, is provided with the cross groove countersunk head screw in threaded hole and is connected with valve cover and valve body, the valve body is the main structure of electromagnetic valve, is responsible for bearing internal component, has good corrosion resistance and mechanical strength, is equipped with fluid passage in the valve body, connects the water inlet and the water outlet, realizes the flow control of fluid when the valve is opened and is closed, the valve cover is connected with the coil shell, not only protects internal component, still participates in the control fluid's in and out, the sealing design of valve cover ensures that fluid does not leak, improves the efficiency and reliability of electromagnetic valve, the guide pipe part is responsible for guiding the flow of fluid in the valve body, ensures that fluid can pass smoothly, the moving iron core part is the movable part of electromagnetic valve, is affected and moves up and down by the magnetic field generated by the coil, controls the opening and closing of valve.

[0007] The coil part includes a coil shell, the coil shell is connected with the upper end surface of the valve cover, a coil is installed inside the coil shell, a coil skeleton is installed inside the coil, the coil is sleeved outside the coil skeleton, a through hole is formed in the upper side of the coil shell, a wire is installed in the through hole, and one end of the wire is connected with the coil. The coil shell not only protects the internal components from the external environment, but also provides mechanical strength and stability. The coil shell helps dissipate heat from the coil, preventing overheating. The coil generates a magnetic field by the on-off of current, thereby driving the movement of the moving iron core to control the fluid. The coil skeleton provides support for the coil, ensuring that the coil remains stable during operation and preventing deformation of the coil due to vibration or external forces. The wire is responsible for transmitting current from the external power source to the coil.

[0008] The guide pipe part includes a guide pipe, the guide pipe is located inside the coil skeleton, two protrusions are provided on the outside of the guide pipe, a groove is provided on the inside of the guide pipe, a static iron core is installed inside the guide pipe, and a coil pressing plate is installed on one side of the static iron core. The static iron core is responsible for guiding and concentrating the magnetic field generated by the electromagnetic coil to improve the driving efficiency of the electromagnetic valve. The magnetic field can effectively act on the moving iron core, promoting its rapid movement and thus achieving timely opening and closing of the valve.

[0009] The moving iron core component includes a moving iron core, which is located on the inner side of the conduit, is located below the static iron core, is internally provided with a groove, and is internally provided with a buffer spring in the groove, the buffer spring is internally provided with a sealing element below, the sealing element is connected with the upper end surface of the valve cover gasket, the static iron core is internally provided with a threaded hole, a cross slot countersunk screw is arranged in the threaded hole to connect the coil pressing plate with the static iron core, the buffer spring is responsible for providing a buffering effect for the movement of the moving iron core, prevents the moving iron core from generating vibration when being opened or closed, thereby enhancing the stability and durability of the electromagnetic valve, the sealing element is used for closing the flow channel, ensures that the fluid does not leak, and the valve cover gasket is an interface part of the electromagnetic valve, ensures that the valve cover and the valve body are well sealed, and prevents the fluid from leaking through the joint.

[0010] The conduit is internally provided with a reset spring in the groove, is provided with an O-shaped ring one at the connection with the valve cover gasket, the O-shaped ring one is located between the two protrusions on the conduit, the valve cover gasket is internally provided with a groove on the lower side, and the groove is internally provided with an O-shaped ring two and an O-shaped ring three. The reset spring is responsible for providing a counterforce when the moving iron core is in the closed state, transmits the elastic force to the moving iron core, pushes it back to the original position, ensures the quick reset of the valve, and the O-shaped ring one, the O-shaped ring two and the O-shaped ring three are used for providing sealing protection between the valve cover and the valve body and other interface areas.

[0011] The coil shell and the lower magnetic conducting plate are made of industrial pure iron, the valve body is made of lead brass, the valve cover, the conduit, the buffer spring, the reset spring and the coil pressing plate are made of stainless steel material, the static iron core and the moving iron core are made of stainless soft magnetic alloy, the sealing element, the O-shaped ring one, the O-shaped ring two and the O-shaped ring three are made of rubber material, and the valve cover gasket is made of plastic. The coil shell is made of industrial pure iron, which is a kind of excellent magnetic conducting material, can effectively improve the magnetic field strength of the electromagnetic valve, ensures the concentration and propagation of the magnetic field, the lower magnetic conducting plate assists the moving iron core to move quickly by guiding the magnetic field generated by the coil, improves the response speed and efficiency of the electromagnetic valve, the valve body is made of lead brass material, has excellent corrosion resistance and processability, is used for bearing the structure of the whole valve, can bear high fluid pressure, effectively seals the fluid channel and prevents leakage, makes the valve body not easy to be damaged in long-term use, the static iron core and the moving iron core are made of stainless soft magnetic alloy, can quickly generate a magnetic field when current passes through, and then drive the quick response of the moving iron core, provide more effective magnetic field conversion and more wear-resistant performance, prolong the service life of the electromagnetic valve, the rubber material has good elasticity and corrosion resistance, plays a good sealing role at the connection of the electromagnetic valve, and the plastic material can remain stable in a high-temperature or corrosive fluid environment, ensures the sealing between the valve cover and the valve body.

[0012] Compared with the prior art, the electromagnetic valve has the advantages that:

[0013] 1. The utility model discloses a coil framework material and improvement reset spring structure are optimized, the ability of resisting magnetic interference and spring durability are improved obviously, select high -performance material, ensure that the high strength, corrosion resistance and wear resistance of solenoid valve, the service life of solenoid valve is improved obviously, ensure that valve port is closed tightly, satisfy high -precision industrial control demand, reduce the maintenance cost.

[0014] 2. The utility model discloses compact structure, small, convenient installation and integrated in various equipment, reduced space occupation, improved the flexibility of equipment design, in addition, the solenoid valve has excellent sealing performance, can effectively prevent fluid leakage, ensure the reliability and safety of equipment. DRAWINGS

[0015] Figure 1 It is the three-dimensional of the utility model Figure 1 ;

[0016] Figure 2 It is the three-dimensional of the utility model Figure 2 ;

[0017] Figure 3 It is the explosion drawing of the utility model;

[0018] Figure 4 It is the section view of the utility model;

[0019] Figure 5 It is the static iron core structure perspective drawing of the utility model.

[0020] In the drawing: 1, coil shell, 2, valve cover, 3, valve body, 4, coil, 5, coil framework, 6, lower magnetic conducting plate, 7, guide pipe, 8, static iron core, 9, dynamic iron core, 10, buffer spring, 11, sealing element, 12, reset spring, 13, coil pressing plate, 14, valve cover sealing gasket, 15, O ring one, 16, O ring two, 17, O ring three, 18, wire. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0022] Please refer to Figures 1-5The utility model provides technical scheme: A kind of miniature brass solenoid valve, conduit component is included, dynamic iron core component is installed in conduit component inside, coil component is sleeved with the outside of conduit component, valve cover 2 is installed below coil component, valve body 3 is installed below valve cover 2, valve cover gasket 14 is installed below valve body 3, four corners of valve cover 2 and valve body 3 are provided with threaded hole, cross slot countersunk head screw is arranged in threaded hole and is connected with valve cover 2 and valve body 3, valve body 3 is the main structure of solenoid valve, responsible for carrying internal component, with good corrosion resistance and mechanical strength, fluid passage is equipped in valve body 3, connects inlet and outlet, realize the flow control of fluid when valve is opened and closed, valve cover 2 is connected with coil shell 1, not only protect internal component, also participate in the control of fluid in and out, the sealing design of valve cover 2 ensures that fluid does not leak out, improves the efficiency and reliability of solenoid valve, conduit component is responsible for guiding the flow of fluid in valve body 3, ensure that fluid can pass smoothly, dynamic iron core component is the movable part of solenoid valve, is affected by the magnetic field generated by coil 4 and moves up and down, controls the opening and closing of valve.

[0023] Coil component includes coil shell 1, coil shell 1 is connected with the upper end surface of valve cover 2, coil 4 is installed in the inside of coil shell 1, coil skeleton 5 is installed in the inside of coil 4, coil 4 is sleeved on the outside of coil skeleton 5, through hole is provided on the upper side of coil shell 1, wire 18 is installed in through hole, one end of wire 18 is connected with coil 4.Coil shell 1 not only protects internal component from the influence of external environment, but also provides mechanical strength and stability, coil shell 1 helps heat dissipation of coil 4, avoids overheating, coil 4 generates magnetic field by the on-off of current, thereby driving the movement of dynamic iron core 9, realizes the control of fluid, coil skeleton 5 provides support for coil 4, ensures that coil 4 remains stable during working process, prevents deformation of coil 4 due to vibration or external force, protects the function of coil 4, wire 18 is responsible for transmitting current from external power supply to coil 4.

[0024] Conduit component includes conduit 7, conduit 7 is located in the inside of coil skeleton 5, two protrusions are provided on the outside of conduit 7, recess is provided on the inside of conduit 7, static iron core 8 is installed in the inside of conduit 7, coil pressing plate 13 is installed on one side of static iron core 8.Static iron core 8 is responsible for guiding and concentrating the magnetic field generated by electromagnetic coil 4, to improve the driving efficiency of solenoid valve, magnetic field can effectively act on dynamic iron core 9, promote its rapid movement, so that valve is opened and closed in time.

[0025] The moving iron core part includes a moving iron core 9 located inside the conduit 7, below the static iron core 8, with a recess inside, a buffer spring 10 located inside the recess, a sealing element 11 installed below the buffer spring 10, connected with the upper end surface of the valve cover gasket 14, a threaded hole opened in the static iron core 8, a cross slot countersunk screw located inside the threaded hole to connect the coil pressing plate 13 with the static iron core 8, the buffer spring 10 is responsible for providing a buffering effect for the movement of the moving iron core 9, preventing the moving iron core 9 from generating vibration when opening or closing, thereby enhancing the stability and durability of the electromagnetic valve, the sealing element 11 is used to close the flow channel, ensuring that the fluid does not leak, the valve cover gasket 14 is the interface part of the electromagnetic valve, ensuring good sealing between the valve cover 2 and the valve body 3, preventing fluid from leaking through the joint.

[0026] A return spring 12 is located inside the recess of the conduit 7, an O-ring 15 is located at the connection between the conduit 7 and the valve cover gasket 14, between the two protrusions on the conduit 7, a recess is located on the lower side of the valve cover gasket 14, and an O-ring 16 and an O-ring 17 are located inside the recess. The return spring 12 is responsible for providing a counteracting force when the moving iron core 9 is in the closed state, transmitting the elastic force to the moving iron core 9, pushing it back to its original position, ensuring the quick resetting of the valve, and the O-ring 15, O-ring 16 and O-ring 17 are used to provide sealing protection between the valve cover 2 and the valve body 3 and other interface areas.

[0027] The coil shell 1 and the lower magnetic guide plate 6 are made of industrial pure iron, the valve body 3 is made of lead brass, the valve cover 2, the conduit 7, the buffer spring 10, the return spring 12 and the coil pressing plate 13 are made of 304 stainless steel material, the static iron core 8 and the moving iron core 9 are made of stainless soft magnetic alloy, the sealing element 11, the O-ring 15, the O-ring 16 and the O-ring 17 are made of rubber material, and the valve cover gasket 14 is made of plastic. The coil shell 1 is made of industrial pure iron, which is an excellent magnetic material that can effectively improve the magnetic field strength of the electromagnetic valve, ensuring the concentration and propagation of the magnetic field, the lower magnetic guide plate 6 assists the moving iron core 9 to move quickly through the magnetic field generated by the coil 4, enhancing the response speed and efficiency of the electromagnetic valve, the valve body 3 is made of lead brass material, which has excellent corrosion resistance and processability, and is used to bear the structure of the entire valve, can withstand high fluid pressure, and effectively seal the fluid channel to prevent leakage, so that the valve body 3 is not easily damaged in long-term use, the static iron core 8 and the moving iron core 9 are made of stainless soft magnetic alloy, which can quickly generate a magnetic field when current passes through, thereby driving the moving iron core 9 to respond quickly, providing more effective magnetic field conversion and more wear-resistant performance, prolonging the service life of the electromagnetic valve, the rubber material has good elasticity and corrosion resistance, and plays a good sealing role at the connection of the electromagnetic valve, and the plastic material can remain stable in high temperature or corrosive fluid environment, ensuring the sealing between the valve cover 2 and the valve body 3.

[0028] The working principle of the utility model is: before working, the micro-brass electromagnetic valve is installed in the pipeline system, the wire 18 is connected with the external power supply, the power supply is turned on, the external power supply supplies power to the coil 4, the current flows in the coil 4 to generate a magnetic field, the magnetic field is concentrated with the static core 8 through the coil shell 1 and the lower magnetic plate 6, the static core 8 generates magnetic force, the moving core 9 is attracted upward by the magnetic force generated by the static core 8, the moving core 9 drives the sealing element 11 to move upward, the opening of the valve is realized, the buffer spring 10 provides the buffer action for the movement of the moving core 9, and the vibration of the moving core 9 in the movement process is prevented.

[0029] Once the external power supply is turned off, the current stops flowing, the magnetic field generated by the coil 4 disappears, the moving core 9 quickly returns to the original position under the action of the reset spring 12, the valve is closed, the counterforce provided by the reset spring 12 ensures the quick reset of the valve, and the non-controlled flow of fluid caused by delay is prevented.

[0030] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model. Any figure mark in the claims should not be regarded as limiting the involved claims.

Claims

1. A micro-brass solenoid valve characterized by: The micro-brass electromagnetic valve comprises a conduit component, a moving iron core component is installed inside the conduit component, a coil component is sleeved outside the conduit component, a valve cover (2) is installed below the coil component, a valve body (3) is installed below the valve cover (2), and a valve cover sealing gasket (14) is installed below the valve body (3).

2. A micro-brass solenoid valve according to claim 1, characterized in that: The coil component comprises a coil shell (1), the coil shell (1) is connected with the upper end surface of the valve cover (2), a coil (4) is installed inside the coil shell (1), a coil skeleton (5) is installed inside the coil (4), the coil (4) is sleeved outside the coil skeleton (5), a through hole is arranged on the upper side of the coil shell (1), and a lead wire (18) is installed in the through hole and connected with the coil (4) at one end.

3. A micro-brass solenoid valve according to claim 2, characterized in that: The conduit component comprises a conduit (7), the conduit (7) is located inside the coil skeleton (5), two protrusions are arranged on the outer side of the conduit (7), a groove is arranged on the inner side of the conduit (7), a static iron core (8) is installed inside the conduit (7), and a coil pressing plate (13) is installed on one side of the static iron core (8).

4. A micro-brass solenoid valve according to claim 3, characterized in that: The moving iron core component comprises a moving iron core (9), the moving iron core (9) is located inside the conduit (7) and below the static iron core (8), a groove is arranged inside the moving iron core (9), a buffer spring (10) is arranged in the groove inside the moving iron core (9), a sealing element (11) is installed below the buffer spring (10), and the sealing element (11) is connected with the upper end surface of the valve cover sealing gasket (14).

5. A micro-brass solenoid valve according to claim 4, characterized in that: A reset spring (12) is arranged in the groove on the inner side of the conduit (7), an O-shaped ring one (15) is arranged at the connection position of the conduit (7) and the valve cover sealing gasket (14), the O-shaped ring one (15) is located between the two protrusions on the conduit (7), a groove is arranged on the lower side of the valve cover sealing gasket (14), and an O-shaped ring two (16) and an O-shaped ring three (17) are arranged in the groove.

6. A micro-brass solenoid valve according to claim 5, characterized in that: The coil shell (1) and the lower magnetic conducting plate (6) are made of industrial pure iron, the valve body (3) is made of lead brass, the valve cover (2), the conduit (7), the buffer spring (10), the reset spring (12) and the coil pressing plate (13) are made of 304 stainless steel material, the static iron core (8) and the moving iron core (9) are made of stainless soft magnetic alloy, the sealing element (11), the O-shaped ring one (15), the O-shaped ring two (16) and the O-shaped ring three (17) are made of rubber material, and the valve cover sealing gasket (14) is made of plastic.

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