Corrosion-resistant electromagnetic valve

Abstract

The utility model provides a corrosion-resistant electromagnetic valve. The corrosion-resistant electromagnetic valve comprises a valve body; the valve cover is hermetically connected with the upper part of the valve body; a valve hole is formed in the valve cover, the valve rod is movably arranged in the valve hole in a penetrating mode, and a sealing piece is arranged at the matching position of the valve rod and the valve hole; the electromagnetic valve adopts an isolation type design, is suitable for circulating chemical fluid and requires corrosion resistance, the sealing piece is arranged between the valve rod and the valve cover, elements in contact with the fluid are all non-metal pieces, and metal pieces are arranged above the valve cover, so that the sealing performance of the electromagnetic valve is greatly improved. Therefore, corrosive fluid in a pipeline below the valve is separated from a metal piece above the valve, the corrosive fluid in the pipeline of the valve cannot enter the position above the valve cover, the electromagnetic valve of the structure is high in corrosion resistance, the metal piece is prevented from being corroded, and the problem that in the prior art, a common electromagnetic valve is poor in corrosion resistance is solved. Elements communicated with the interior of a valve pipeline are provided with metal pieces, fluid in the pipeline can make contact with the metal pieces, and the metal pieces are corroded.

Description

TECHNICAL FIELD

[0001] The utility model relates to solenoid valve technical field especially relates to a kind of corrosion-resistant solenoid valve. BACKGROUND

[0002] Solenoid valve is the industrial equipment controlled by electromagnetism, is used to control fluid's automation basic element, belongs to actuator, and is not limited to hydraulic, pneumatic etc. Solenoid valve is widely used in the field of industrial automation process.

[0003] Chinese patent CN201922032120.0 discloses high-frequency high-life solenoid valve, including solenoid valve body, the side of the solenoid valve body is provided with water outlet, the other side of the solenoid valve body is provided with water inlet, the upper end of the solenoid valve body is provided with solenoid valve cover. The inside of the solenoid valve cover is provided with mounting cavity, the upper end of the mounting cavity is installed with reset spring and sealing sleeve, the upper end of the solenoid valve cover is provided with mounting sleeve rod, the inside of the mounting sleeve rod is provided with movable connecting column, the lower end of the movable connecting column extends to the inside of mounting cavity, the lower end of the movable connecting column is connected with the lower end of reset spring and sealing sleeve, the upper end of the movable connecting column is fixedly connected with movable iron core, the upper end of the mounting sleeve rod is provided with connecting rod, the inside of the lower end of the connecting rod is provided with static iron core, the upper end of the connecting rod is provided with connector, the inside of the bottom end of the movable connecting column is fixedly connected with valve core component.

[0004] However, the ordinary solenoid valve in the prior art has metal components in the valve pipeline, and the fluid in the pipeline contacts the metal components. If the fluid is corrosive, the metal components will be corroded. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of corrosion-resistant solenoid valve, adopt isolated design, applicable to flow chemical fluid, require its corrosion resistance, by setting sealing element between valve stem and valve cover, and the element contacted with fluid is all set as non-metal component, metal component is set on the upper of valve cover, so that corrosive fluid in the pipeline below valve is isolated from the metal component above valve, corrosive fluid in the pipeline of valve does not enter the upper of valve cover, the solenoid valve of this structure has strong corrosion resistance, avoids that metal component is corroded, solve the ordinary solenoid valve in prior art, the element in the valve pipeline is connected with metal component, the fluid in the pipeline contacts the metal component, resulting in the corrosion of metal component and other technical problems.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The utility model relates to a kind of corrosion-resistant electromagnetic valve, comprising: valve body;Valve cover, the upper portion of the valve body is sealedly connected with the valve cover;Valve stem, the valve hole is opened in the valve cover, the valve stem is movably arranged in the valve hole, and the cooperation position of the valve stem and valve hole is provided with sealing element, to prevent the fluid in the valve body from entering above the valve cover.

[0008] As preferred, the upper end surface of the valve cover is recessed with ring groove on the outer periphery of valve hole, and the sealing element is installed in the ring groove.

[0009] As preferred, the upper end surface of the valve cover is recessed with installation groove above the valve hole, and the gland is installed in the installation groove, which presses the sealing element in the ring groove.

[0010] As preferred, the inner ring of the sealing element is tightly sealed with the valve stem, and the outer ring is tightly sealed with the groove wall of the ring groove.

[0011] As preferred, the sealing element is provided as O-ring.

[0012] As preferred, the end of the valve stem above the valve cover is connected with metal piece, and the end below the valve cover is connected with valve core piece, and the valve body, valve cover, valve stem and valve core piece are all provided as non-metal piece.

[0013] As preferred, the valve body, valve cover, valve stem and valve core piece are all made of upvc or cpvc material.

[0014] As preferred, the left side of the valve body is provided with water inlet, the right side is provided with water outlet, and the upper side is provided with connecting port, and the connecting port is opened to communicate the water inlet and water outlet.

[0015] As preferred, the valve stem moves as piston in the valve hole to open or close the connecting port.

[0016] As preferred, the lower end of the valve stem is connected with valve core piece, and the valve stem moves as piston to seal or separate the valve core piece and the connecting port.

[0017] The utility model has the advantages that: adopting isolation type design, it is suitable for circulating chemical fluid, and it is required to be corrosion-resistant, by setting sealing element between valve stem and valve cover, the sealing element adopts customized strong acid and alkali resistant sealing ring, and all elements in contact with fluid are provided as non-metal piece, and metal piece is arranged above the valve cover, so that the corrosive fluid in the pipeline below the valve is isolated from the metal piece above the valve, and the corrosive fluid in the valve pipeline cannot enter above the valve cover, the electromagnetic valve with such structure has strong corrosion resistance, and metal piece is prevented from being corroded. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1The utility model discloses a main body structure schematic view.

[0019] Figure 2 The utility model discloses a whole structure cross section view.

[0020] Figure 3 The utility model discloses a valve rod and valve cover sealing cooperation installation schematic view.

[0021] Figure 4 The utility model discloses a main body structure cross section view. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Apparently, 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 work belong to the range protected by the utility model.

[0023] In the description of the utility model, it is understood that the orientation or position relation indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" are based on the orientation or position relation shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0024] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0025] Embodiment one

[0026] As shown in Figure 1 A kind of corrosion-resistant electromagnetic valve, comprising: valve body 1;Valve cover 2, the upper portion of the valve cover 2 is sealingly connected with the valve body 1;As shown in Figures 2-4 Valve rod 3, the valve hole 21 is opened in the valve cover 2, the valve rod 3 is movably arranged in the valve hole 21, and the cooperation position of the valve rod 3 and valve hole 21 is provided with sealing element 4, to block the fluid in the valve body 1 from entering above valve cover 2.

[0027] As preferred, as shown in Figure 3 The upper end face of the valve cover 2 is provided with an annular groove 22 on the outer periphery of the valve hole 21, and the sealing member 4 is installed in the annular groove 22.

[0028] The embodiment adopts an isolated design, is suitable for circulating chemical fluids, requires corrosion resistance, sets a sealing member 4 between the valve stem 3 and the valve cover 2, the sealing member 4 adopts a customized strong acid and alkali resistant sealing ring, and all elements in contact with the fluid are set as non-metal elements, and the metal elements are set above the valve cover 2, so that the corrosive fluid in the pipeline below the valve is isolated from the metal elements above the valve, and the corrosive fluid in the pipeline of the valve cannot enter above the valve cover. The electromagnetic valve of this structure has strong corrosion resistance and avoids corrosion of metal elements.

[0029] As preferred, the inner ring of the sealing member 4 is tightly sealed with the valve stem 3, and the outer ring is tightly sealed with the groove wall of the annular groove 22.

[0030] As preferred, the sealing member 4 is set as an O-ring.

[0031] As preferred, as shown in Figure 2 The end of the valve stem 3 above the valve cover 2 is connected with a metal element 7, and the end below the valve cover 2 is connected with a valve core element 6, and the valve body 1, the valve cover 2, the valve stem 3 and the valve core element 6 are all set as non-metal elements.

[0032] As preferred, the valve body 1, the valve cover 2, the valve stem 3 and the valve core element 6 all adopt upvc or cpvc materials.

[0033] As preferred, as shown in Figure 2 The left side of the valve body 1 is provided with a water inlet 11, the right side is provided with a water outlet 12, and the upper side is provided with a connecting port 13. When the connecting port 13 is opened, the water inlet 11 and the water outlet 12 are communicated.

[0034] As preferred, the valve stem 3 moves as a piston in the valve hole 21 to open or close the connecting port 13.

[0035] As preferred, the lower end of the valve stem 3 is connected with a valve core element 6, and the valve stem 3 moves as a piston to make the valve core element 6 sealingly connected or separated from the connecting port 13.

[0036] Embodiment two

[0037] The same or corresponding parts in the above embodiment are marked with the same reference numerals as in the above embodiment. For the sake of simplicity, only the differences between the above embodiment and the following embodiment are described. The difference between the embodiment and the above embodiment is that:

[0038] As preferred, as shown in Figure 3As shown, the upper end face of the valve cover 2 is located above the valve hole 21 and is concavely provided with a mounting groove 23, and a gland 5 is mounted in the mounting groove 23, which presses the sealing element 4 tightly in the annular groove 22.

[0039] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A corrosion-resistant electromagnetic valve characterized by comprising: The utility model relates to a valve, comprising: a valve body (1); a valve cover (2) sealingly connected with the upper part of the valve body (1); a valve stem (3) movably arranged in a valve hole (21) of the valve cover (2), and a sealing element (4) arranged at the position where the valve stem (3) cooperates with the valve hole (21) to prevent fluid in the valve body (1) from entering the upper part of the valve cover (2).

2. The corrosion-resistant electromagnetic valve according to claim 1, wherein An annular groove (22) is concavely arranged on the outer periphery of the valve hole (21) at the upper end surface of the valve cover (2), and the sealing element (4) is arranged in the annular groove (22).

3. The corrosion-resistant electromagnetic valve according to claim 2, wherein An installation groove (23) is concavely arranged on the upper end surface of the valve cover (2) above the valve hole (21), and a gland (5) is arranged in the installation groove (23) to press the sealing element (4) against the annular groove (22).

4. The corrosion-resistant electromagnetic valve according to claim 2, wherein The inner ring of the sealing element (4) is tightly sealed against the valve stem (3), and the outer ring is tightly sealed against the groove wall of the annular groove (22).

5. The corrosion-resistant electromagnetic valve according to claim 1, wherein The sealing element (4) is an O-ring.

6. The corrosion resistant solenoid valve of claim 1, wherein The end of the valve stem (3) above the valve cover (2) is connected with a metal element (7), and the end below the valve cover (2) is connected with a valve core element (6). The valve body (1), the valve cover (2), the valve stem (3), and the valve core element (6) are all non-metal elements.

7. A corrosion resistant solenoid valve according to claim 6, wherein The valve body (1), the valve cover (2), the valve stem (3), and the valve core element (6) are all made of upvc or cpvc.

8. The corrosion resistant solenoid valve of claim 1, wherein The left side of the valve body (1) is provided with a water inlet (11), the right side is provided with a water outlet (12), and the upper side is provided with a connecting port (13). When the connecting port (13) is opened, the water inlet (11) and the water outlet (12) are communicated.

9. A corrosion resistant solenoid valve according to claim 8, wherein The valve stem (3) moves as a piston in the valve hole (21) to open or close the connecting port (13).

10. The corrosion resistant solenoid valve of claim 8, wherein The lower end of the valve stem (3) is connected with the valve core element (6), and the valve stem (3) moves as a piston to make the valve core element (6) sealingly connected with or separated from the connecting port (13).

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