Electromagnetic valve iron core assembly with simple structure

Abstract

The utility model discloses an electromagnetic valve iron core assembly with a simple structure, which comprises a movable iron core body, a sliding rod is integrally formed at the bottom of the movable iron core body, a sealing piece is arranged on the outer side of the sliding rod, and a limiting disc for limiting the sealing piece is arranged at one end, far away from the movable iron core body, of the sliding rod. A water inlet hole is formed in the limiting disc in a penetrating mode, a water drainage hole is formed in the movable iron core body, an L-shaped groove is formed in the movable iron core body, and the water drainage hole is communicated with the water inlet hole through the L-shaped groove. The electromagnetic valve can be easily opened under the condition of high water pressure, water in the sealing piece can be drained through the water inlet hole, the L-shaped groove and the drainage hole when the electromagnetic valve is closed, and the situation that the sealing piece is deformed and the sealing effect of the sealing piece is affected due to the fact that the water is accumulated in the sealing piece is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic valves, in particular to an electromagnetic valve iron core component with a simple structure. Background Art

[0002] A solenoid valve is an industrial device that uses electromagnetic force to control the flow of fluid. It is also a basic component in automated control systems and a type of actuator. It mainly includes a valve body, seals, a static iron core, a moving iron core, and a spring.

[0003] The moving iron core and the seal of a conventional solenoid valve are fixed and cannot move. In order for the solenoid valve to start normally under high water pressure, the distance between the moving iron core and the static iron core is shortened to enhance the attraction of the static iron core to the moving iron core. However, this will result in a smaller stroke of the moving iron core and high production and processing precision requirements. Some solenoid valves have a movable setting between the moving iron core and the seal, so that the solenoid valve can be easily opened under high water pressure. However, the structure of this movable solenoid valve is very complex, which makes processing difficult and the production cost high. Utility Model Content

[0004] The purpose of the utility model is to provide a solenoid valve core assembly with a simple structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a solenoid valve core assembly with a simple structure, comprising a moving iron core body, a sliding rod integrally formed at the bottom of the moving iron core body, a sealing member provided on the outer side of the sliding rod, and a limiting plate for limiting the seal at one end of the sliding rod away from the moving iron core body, a water inlet hole passing through the limiting plate, a drainage hole provided on the moving iron core body, an L-shaped groove provided inside the moving iron core body, and the drainage hole and the water inlet hole being connected via the L-shaped groove.

[0006] As a preferred solution of the present invention, a slide groove is provided on the top of the sealing member, and a circular groove is provided inside the sealing member, and the circular groove is communicated with the slide groove.

[0007] As a preferred solution of the present invention, the sliding rod is slidably connected to the sliding groove, and the limiting plate is slidably connected to the circular groove.

[0008] As a preferred solution of the present invention, the diameter of the limiting plate is larger than the diameter of the sliding rod.

[0009] As a preferred solution of the present invention, a contraction portion is provided on the top of the moving iron core body.

[0010] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a simple structure, which makes processing easy and cost-effective. By movably arranging the seal on the outside of the slide rod, the solenoid valve can be easily opened under high water pressure conditions, and the water in the seal can be discharged when the solenoid valve is closed through the provided water inlet hole, L-shaped groove and drain hole, thereby avoiding water accumulation in the seal, causing deformation of the seal and affecting the sealing effect of the seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0012] Figure 2 It is a cross-sectional view of the utility model;

[0013] Figure 3 This is a schematic structural diagram of the movable iron core body of the utility model;

[0014] Figure 4 This is a schematic structural diagram of the sealing member of the present invention;

[0015] Figure 5 This is a structural diagram of the utility model when it is installed inside a solenoid valve.

[0016] In the figure: 1. Moving iron core body; 2. Seal; 3. Contraction part; 4. Drain hole; 5. Water inlet hole; 6. L-shaped groove; 7. Slide rod; 8. Slide groove; 9. Circular groove; 10. Limit plate. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figures 1 to 5The cam 7 is provided with a plurality of sealing members 2, and the sealing members 2 are provided with a plurality of sealing members 2, and the sealing members 2 are provided with a plurality of sealing members 2. The sealing members 2 are provided with a plurality of sealing members 2, and the sealing members 2 are provided with a plurality of sealing members 2. The sealing members 2 are provided with a plurality of sealing members 2, and the sealing members 2 are provided with a plurality of sealing members 2. The sealing members 2 are provided with a plurality of sealing members 2, and the sealing members 2 are provided with a plurality of sealing members 2. The body 1 needs to overcome the pressure of water. However, at this time, the distance between the moving iron core body 1 and the static iron core is small, and the static iron core has a strong adsorption effect on the moving iron core body 1, so the moving iron core body 1 can easily overcome the pressure, thereby easily realizing the opening of the solenoid valve. The end of the slide rod 7 away from the moving iron core body 1 is provided with a limit plate 10 for limiting the seal 2. The limit plate 10 is used to limit the seal 2 to prevent the seal 2 from separating from the slide rod 7. A water inlet hole 5 is penetrated through the limit plate 10, and a drainage hole 4 is provided on the moving iron core body 1. An L-shaped groove 6 is provided inside the moving iron core body 1, and the drainage hole 4 is connected to the water inlet hole 5 through the L-shaped groove 6. When the solenoid valve is closed, the moving iron core body 1 will move toward the direction close to the seal 2. At this time, the seal 2 is filled with water, and the water in the seal 2 is discharged through the water inlet hole 5, the L-shaped groove 6 and the drainage hole 4 in turn, thereby avoiding water accumulation in the seal 2, causing the seal 2 to deform and affecting the sealing effect of the seal 2.

[0019] Among them, a slide groove 8 is provided on the top of the seal 2, and a circular groove 9 is provided inside the seal 2. The circular groove 9 is connected to the slide groove 8. The slide groove 8 and the circular groove 9 are set so that the seal 2 can slide on the outside of the slide rod 7 and the limit plate 10.

[0020] The slide rod 7 is slidably connected to the slide groove 8 , and the limit plate 10 is slidably connected to the circular groove 9 .

[0021] The diameter of the limiting plate 10 is larger than the diameter of the sliding rod 7 , so that the sliding rod 7 can slide in the sliding groove 8 , while the limiting plate 10 cannot pass through the sliding groove 8 .

[0022] A contraction portion 3 is provided on the top of the moving iron core body 1 , and a spring is sleeved on the contraction portion 3 so that the spring can apply thrust to the moving iron core body 1 .

[0023] Specifically, when the solenoid valve is started with high water pressure, the moving iron core body 1 moves upward under the adsorption effect of the static iron core, and the moving iron core body 1 drives the slide rod 7 and the limit plate 10 to move. At this time, the limit plate 10 slides in the circular groove 9, and the moving iron core body 1 first performs no-load movement. It does not need to overcome the pressure of the water, but only needs to overcome the friction of the water. As the moving iron core body 1 continues to move upward, the limit plate 10 moves to the top of the circular groove 9 and contacts the seal 2. The limit plate 10 drives the seal 2 to move upward. At this time, the moving iron core body 1 needs to overcome the pressure of the water. However, at this time, the moving iron core body 1 and the static iron core The distance between them is small, and the static iron core has a strong adsorption effect on the moving iron core body 1, so the moving iron core body 1 can easily overcome the pressure, thereby easily realizing the opening of the solenoid valve. When the solenoid valve is closed, the moving iron core body 1 moves downward under the action of the spring. At this time, the seal 2 is filled with water, and the water in the seal 2 is discharged in turn through the water inlet hole 5, the L-shaped groove 6 and the drain hole 4, thereby avoiding water accumulation in the seal 2, causing the seal 2 to deform and affect the sealing effect of the seal 2. Subsequently, the seal 2 contacts the valve seat in the solenoid valve, thereby realizing the closure of the solenoid valve.

[0024] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one such feature.

[0026] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

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

Claims

1. A solenoid valve core assembly with a simple structure, comprising a moving core body (1), characterized in that: A sliding rod (7) is integrally formed at the bottom of the movable iron core body (1), a sealing member (2) is provided on the outer side of the sliding rod (7), a limiting plate (10) for limiting the sealing member (2) is provided at one end of the sliding rod (7) away from the movable iron core body (1), a water inlet hole (5) is provided through the limiting plate (10), a drainage hole (4) is provided on the movable iron core body (1), an L-shaped groove (6) is provided inside the movable iron core body (1), and the drainage hole (4) and the water inlet hole (5) are connected via the L-shaped groove (6).

2. A solenoid valve core assembly with a simple structure according to claim 1, characterized in that: A slide groove (8) is provided on the top of the sealing member (2), and a circular groove (9) is provided inside the sealing member (2), and the circular groove (9) is communicated with the slide groove (8).

3. A solenoid valve core assembly with a simple structure according to claim 2, characterized in that: The sliding rod (7) is slidably connected to the sliding groove (8), and the limiting plate (10) is slidably connected to the circular groove (9).

4. The solenoid valve core assembly with a simple structure according to claim 1, characterized in that: The diameter of the limiting plate (10) is greater than the diameter of the sliding rod (7).

5. The solenoid valve core assembly with a simple structure according to claim 1, characterized in that: A contraction portion (3) is provided on the top of the moving iron core body (1).

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