Two-way electromagnetic valve with rubber coating and sealing film

Abstract

The utility model discloses a two-way electromagnetic valve with rubber coating and a sealing film, which comprises an electromagnetic component, a sealing component and a valve head component and relates to the technical field of electromagnetic valves, the sealing performance is improved by adopting the rubber coating and the sealing film, the problem of internal corrosion and rusting is not easy to occur when the two-way electromagnetic valve is used in a liquid or humid environment, and the service life of the two-way electromagnetic valve is prolonged. The fault damage rate is reduced; and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic valves, in particular to a two-way electromagnetic valve with rubber coating and a sealing film. Background Art

[0002] As a component of automation equipment, the solenoid valve has seen a sharp increase in usage in recent years. The response time of the solenoid valve can be as short as a few milliseconds, and even the pilot solenoid valve can be controlled within tens of milliseconds. Because it is self-contained, it is more sensitive than other automatic control valves. A properly designed solenoid valve coil has very low power consumption and is an energy-saving product. It can also automatically maintain the valve position by simply triggering the action, and does not consume any power at ordinary times. The solenoid valve has a small size, which saves space, is light and beautiful, and has a simple structure and low price. It is easier to install and maintain than other types of actuators such as control valves.

[0003] However, in the prior art, the solenoid valve also has certain requirements for the use environment, especially the two-way solenoid valve. When the external environment is liquid or the air is relatively humid, the water vapor in the liquid or air will enter the solenoid valve, causing corrosion and rust inside the solenoid valve, resulting in failure or damage of the solenoid valve. Summary of the invention

[0004] 1. Technical problems to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a two-way solenoid valve with rubber coating and sealing film, which solves the problem mentioned in the above background technology that the solenoid valve may malfunction or be damaged due to corrosion and rust in liquid or humid environment.

[0006] (2) Technical solution

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a two-way solenoid valve with rubber coating and sealing film, including an electromagnetic component, a sealing component, and a valve head component, characterized in that: the electromagnetic component includes a yoke, a coil component, a fixed iron core, a shaft sleeve, a spring, a movable iron core, a rubber-coated shell and a screw, the sealing component includes a positioning block, a plug positioning piece, a sealing film, a plug, the valve head component includes valve head one, valve head two and a valve head sealing ring, the fixed iron core is installed in one end of the coil component, the fixed iron core and the coil component are combined into the yoke and are rubber-coated to form a rubber-coated shell, the upper end of the rubber-coated shell is provided with a through hole, the shaft sleeve is installed in the other end of the coil assembly through the through hole at the upper end of the rubber-coated shell for fixed connection, the middle of the shaft sleeve is provided with a through hole, and one end of the movable iron core is provided with a circular groove, The spring is installed in the circular groove at one end of the movable iron core, and the movable iron core and spring combination is installed in the other end of the coil assembly through the perforation of the shaft sleeve. The spring is in contact with the fixed iron core, and one end of the plug positioning piece is fixedly connected to the other end of the movable iron core. A perforated sleeve is provided in the middle of the positioning block and is arranged on the plug positioning piece and is in contact with the yoke iron. The sealing film is in the shape of a circular ring, and the inner ring is fixedly installed in the middle of the plug positioning piece and is in contact with the positioning block. The plug is fixedly installed at the other end of the plug positioning piece. The valve head 2 is provided with a perforation in the middle and a groove at one end, which is installed on the rubber-coated shell. The positioning block is installed in the groove at one end of the valve head 2, and the outer ring of the sealing film is fixed between the valve head 2 and the positioning block. The valve head 1 is fixedly connected to the other end of the valve head 2, and a valve head sealing ring is provided between the two.

[0008] Preferably, the shape of the groove at one end of the valve head matches the positioning block.

[0009] Preferably, the coil assembly comprises a bobbin, a coil and an electric conductor, wherein the coil is wound on the bobbin, one end of the electric conductor is electrically connected to the coil, and the other end of the electric conductor is connected to a power source.

[0010] Preferably, a groove is provided in the middle of the plug positioning member, and the inner ring of the sealing film is fixedly installed in the groove.

[0011] Preferably, the valve head 1 is provided with inlet and outlet 1 and inlet and outlet 2.

[0012] Preferably, a cavity is provided between the first valve head and the second valve head, and the plug is arranged in the cavity.

[0013] Preferably, the sealing film and the plug are made of rubber or silicone.

[0014] (III) Beneficial effects.

[0015] The utility model provides an escalator cleaning machine which can automatically adjust the cleaning height, and has the following beneficial effects:

[0016] 1. The solenoid assembly is encapsulated with rubber, which makes it difficult for the solenoid valve to malfunction or be damaged when used in liquid or humid environments, thus increasing the service life and stability of the solenoid valve.

[0017] 2. The solenoid valve adopts a sealing film structure to protect the electromagnetic component and the valve head component to achieve sealing isolation, so that the liquid or moisture entering the valve head will not enter the electromagnetic component, thereby causing corrosion and rust of the electromagnetic component, and it is not easy to malfunction or damage, which increases the service life and stability of the solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the decomposition of the utility model.

[0019] Figure 2 This is a schematic cross-sectional view of the present invention.

[0020] Figure 3 This is the overall schematic diagram of the utility model.

[0021] In the figure: 1. electromagnetic assembly; 11. yoke; 12. coil assembly; 121. bobbin; 122. coil; 123. electric wire; 13. fixed iron core; 14. bushing; 15. spring; 16. movable iron core; 17. rubber-coated shell; 18. screw; 19. nut; 2. sealing assembly; 21. positioning block; 22. plug positioning piece; 23. sealing film; 24. plug; 3. valve head assembly; 31. valve head one; 32. valve head two; 33. valve head sealing ring; 34. cavity. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 3The utility model provides a two-way solenoid valve with rubber coating and sealing film, including an electromagnetic component, a sealing component, and a valve head component, characterized in that: the electromagnetic component includes a yoke, a coil component, a fixed iron core, a shaft sleeve, a spring, a movable iron core, a rubber-coated shell and a screw, the sealing component includes a positioning block, a plug positioning piece, a sealing film, a plug, the valve head component includes a valve head one, a valve head two and a valve head sealing ring, the fixed iron core is installed in one end of the coil component, the fixed iron core and the coil component are combined and installed in the yoke to form a rubber-coated shell through rubber coating, the upper end of the rubber-coated shell is provided with a through hole, the shaft sleeve is installed in the other end of the coil component through the through hole at the upper end of the rubber-coated shell to fix the yoke, the electric coil component and the fixed iron core together, a through hole is provided in the middle of the shaft sleeve, one end of the movable iron core is provided with a circular groove, the spring is installed in the movable The movable iron core and spring combination are installed in the circular groove at one end of the iron core through the perforation of the shaft sleeve into the other end of the coil assembly. The spring is in contact with the fixed iron core. One end of the plug positioning piece is fixedly connected to the other end of the movable iron core. A perforated sleeve is provided in the middle of the positioning block and is arranged on the plug positioning piece and is in contact with the yoke iron. The sealing film is in a circular ring shape, and the inner ring is fixedly installed in the middle of the plug positioning piece and is in contact with the positioning block. The plug is fixedly installed at the other end of the plug positioning piece. A perforated hole is provided in the middle of the valve head 2 and a groove is provided at one end, which is installed on the rubber-coated shell. The positioning block is installed in the groove at one end of the valve head 2. The outer ring of the sealing film is fixed between the valve head 2 and the positioning block. The valve head 1 is connected to the other end of the valve head 2. A valve head sealing ring is provided between the two. The screws and nuts cooperate to fix the electromagnetic assembly and the valve head assembly.

[0024] The coil assembly includes a bobbin, a coil and an electric conductor. The coil is wound on the bobbin. One end of the electric conductor is electrically connected to the coil, and the other end is connected to a power source. The shape of the groove at one end of the valve head 2 matches the shape of the positioning block. A groove is provided in the middle of the plug positioning piece. The inner ring of the sealing film is fixedly installed in the groove. The valve head 1 is provided with inlet and outlet 1 and inlet and outlet 2. A cavity is provided between the valve head 1 and the valve head 2. The plug is arranged in the cavity. The sealing film and the plug are made of rubber or silicone.

[0025] During the specific implementation, the movable iron core moves back and forth, driving the plug positioning piece to move back and forth. The inner ring of the sealing film is fixed on the plug positioning piece, and the outer ring is fixed between the valve head and the positioning block. Because the displacement of this reciprocating movement is very small and the sealing film is made of silicone or rubber with a certain elasticity, the sealing film will not become an obstacle to the reciprocating movement of the movable iron core and the plug positioning piece.

[0026] Working principle: When the utility model is energized, the coil in the electromagnetic assembly generates magnetic force to magnetize the movable iron core. The movable iron core overcomes the elastic force of the spring and the sealing film due to the magnetic force and moves toward the fixed iron core, driving the plug positioning piece to move. The plug positioning piece drives the plug to move, and the plug is hit into inlet and outlet 1 on the valve head 1, so that inlet and outlet 1 are connected with inlet and outlet 2. When the power is off, the coil does not generate magnetic force, the magnetic force on the movable iron core disappears, and the elastic force of the spring and the sealing film moves the movable iron core away from the fixed iron core. The movable iron core also drives the plug positioning piece to move. The plug positioning piece drives the plug to move, blocking inlet and outlet 1 on the valve head 1, so that the connection between inlet and outlet 1 and inlet and outlet 2 is disconnected.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A two-way solenoid valve with a rubber coating and a sealing film, comprising a solenoid assembly (1), a sealing assembly (2), and a valve head assembly (3), characterized in that: The electromagnetic assembly (1) comprises a yoke (11), a coil assembly (12), a fixed iron core (13), a shaft sleeve (14), a spring (15), a movable iron core (16), a rubber-coated housing (17) and a screw (18); the sealing assembly (2) comprises a positioning block (21), a plug positioning member (22), a sealing film (23) and a plug (24); the valve head assembly (3) comprises a valve head 1 (31), a valve head 2 (32) and a valve head sealing ring (33); the fixed iron core (13) is installed in the coil assembly (12) The fixed iron core (13) and the coil assembly (12) are assembled into a yoke (11) and are coated with rubber to form a rubber-coated shell (17). The upper end of the rubber-coated shell (17) is provided with a through hole. The shaft sleeve (14) is inserted into the other end of the coil assembly (12) through the through hole at the upper end of the rubber-coated shell (17) to be fixedly connected. The shaft sleeve (14) has a through hole in the middle. One end of the movable iron core (16) is provided with a circular groove. The spring (15) is installed in the circular groove at one end of the movable iron core (16). The iron core (16) and the spring (15) are assembled into the other end of the coil assembly (12) through the through hole of the shaft sleeve (14); the spring (15) is in contact with the fixed iron core (13); one end of the plug positioning piece (22) is fixedly connected to the other end of the movable iron core (16); a through hole is provided in the middle of the positioning block (21) and is sleeved on the plug positioning piece (22) and is in contact with the yoke (11); the sealing film (23) is in the shape of a ring, and the inner ring is fixedly installed in the middle of the plug positioning piece (22) and connected to the positioning block (21) is in contact connection, the plug (24) is fixedly mounted on the other end of the plug positioning member (22), the valve head (32) is provided with a through hole in the middle and a groove at one end, and is mounted on the rubber-coated housing (17), the positioning block (21) is installed in the groove at one end of the valve head (32), the outer ring of the sealing film (23) is fixed between the valve head (32) and the positioning block (21), the valve head (31) is fixedly connected to the other end of the valve head (32), and a valve head sealing ring (33) is provided between the two.

2. A two-way solenoid valve with rubber coating and sealing film according to claim 1, characterized in that: The shape of the groove at one end of the valve head 2 (32) matches the shape of the positioning block (21).

3. A two-way solenoid valve with rubber coating and sealing film according to claim 1, characterized in that: The coil assembly (12) comprises a bobbin (121), a coil (122) and an electric conductor (123); the coil (122) is wound on the bobbin (121); one end of the electric conductor (123) is electrically connected to the coil (122) and the other end is connected to a power source.

4. A two-way solenoid valve with rubber coating and sealing film according to claim 1, characterized in that: The plug positioning piece (22) is provided with a groove in the middle, and the inner ring of the sealing film (23) is fixedly installed in the groove.

5. A two-way solenoid valve with rubber coating and sealing film according to claim 1, characterized in that: The valve head 1 (31) is provided with an inlet and outlet 1 (311) and an inlet and outlet 2 (312).

6. A two-way solenoid valve with rubber coating and sealing film according to claim 1, characterized in that: A cavity (34) is provided between the first valve head (31) and the second valve head (32), and the plug (24) is arranged in the cavity (34).

7. A two-way solenoid valve with rubber coating and sealing film according to claim 1, characterized in that: The sealing film (23) and the plug (24) are made of rubber or silicone.

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