Inner sealing structure of electromagnetic switch valve

Abstract

The utility model discloses an internal sealing structure of an electromagnetic switch valve, which relates to the technical field of electromagnetic switch valves, and comprises a magnetic sleeve, the right side of the magnetic sleeve is fixedly connected with a shell, a first notch is formed in the magnetic sleeve, a second notch is formed in the shell, the first notch is communicated with the second notch, and the second notch is communicated with the first notch. The magnetic sleeve is provided with a first notch and a second notch, the magnetic sleeve is provided with a sealing element in the first notch, the other end of the sealing element extends into the second notch, the outer wall of the sealing element is provided with an annular groove, and the sealing element is fixedly sleeved with a sealing ring structure in the position of the annular groove. According to the inner sealing structure of the electromagnetic switch valve, a traditional mechanical sealing structure is adjusted to be sealed through the sealing ring structure, the structure of the inner sealing structure of the electromagnetic switch valve is simplified, the sealing performance requirement can be met, the needed space is low, and the weight of the electromagnetic valve is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electromagnetic switch valve, especially to a kind of inner sealing structure of electromagnetic switch valve. BACKGROUND

[0002] Switch valve is the switch of valve type, for example, faucet, pressure cooker valve and so on such switch of cutoff function.Switch valve is mainly divided into pneumatic switch valve and electromagnetic switch valve, wherein electromagnetic switch valve is driven slider to move by the electromagnetic attraction of helical coil, so as to change valve body valve position.

[0003] The inner sealing structure of current electromagnetic switch valve is influenced by the machining precision of sub-component, material characteristics and the like, to reduce the leakage of hydraulic device, the sealing of sealing element and magnetic sleeve is mechanical sealing structure, the space occupied by this kind of mode is large, product structure is complex, and mechanical sealing processing cost is high, assembly difficulty is big, and production cycle is long. INVENTION CONTENTS

[0004] The utility model aims at solving the shortcomings in prior art, and provides an inner sealing structure of electromagnetic switch valve.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] An inner sealing structure of electromagnetic switch valve, including magnetic sleeve, the right side of the magnetic sleeve is fixedly connected with shell, the inside of the magnetic sleeve is equipped with the first notch, the inside of the shell is equipped with the second notch, the first notch is linked with the second notch, the magnetic sleeve is equipped with sealing element in the first notch, the other end of the sealing element extends to the second notch, the outer wall of the sealing element is equipped with annular groove, the sealing ring structure is fixedly sleeved in the annular groove of the sealing element, and the outer wall of the sealing ring structure is in contact with the inner wall of the magnetic sleeve.

[0007] Preferably, the sealing ring structure includes O-shaped ring, the O-shaped ring is in contact with the outer wall of the sealing element, the outer wall of the O-shaped ring is fixedly sleeved with rectangular ring, and the rectangular ring is in contact with the inner wall of the magnetic sleeve.

[0008] Preferably, the O-shaped ring is O-shaped rubber sealing ring, the rectangular ring is made of high wear-resistant polytetrafluoroethylene composite material, and the O-shaped ring and the rectangular ring constitute Gley ring.

[0009] Preferably, the middle part of the sealing element is equipped with sleeve hole, the outer wall of the one end of the sealing element close to the shell is fixedly sleeved with valve seat, the valve seat is located in the second notch, the outer wall of the shell is equipped with opening, and the opening is located on the outside of the valve seat.

[0010] The utility model has the advantages that:

[0011] The utility model discloses a kind of inner sealing structures of electromagnetic switch valve, including magnetic sleeve, shell, sealing element and sealing ring structure, magnetic sleeve is fixedly connected with shell, sealing element is fixedly connected with shell, sealing ring structure is fixedly connected with sealing element, the utility model discloses a sealing element and the sealing mode of magnetic sleeve are adjusted, traditional mechanical sealing structure is adjusted to be sealed by sealing ring structure, enough sealing force is provided by the design of O-ring, when sealing element moves, the wear compensation effect of rectangular ring makes the structure of the inner sealing structure of this electromagnetic switch valve be simplified, and can meet sealing requirement, demand space is low, electromagnetic valve weight is reduced, processing, assembly difficulty is reduced, the processing, assembly cost of electromagnetic valve is significantly reduced, production cycle is shortened. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structure diagram of the inner sealing structure of the utility model of a kind of electromagnetic switch valve.

[0013] Figure 2 It is the front view of the inner sealing structure of the utility model of a kind of electromagnetic switch valve.

[0014] Figure 3 It is the structure diagram of the sealing ring structure of the inner sealing structure of the utility model of a kind of electromagnetic switch valve. Figure 2 It is the sectional view of A-A in the middle.

[0015] Figure 4 It is the structure diagram of the sealing ring structure of the inner sealing structure of the utility model of a kind of electromagnetic switch valve.

[0016] Figure 5 It is the structure diagram of the sealing element of the inner sealing structure of the utility model of a kind of electromagnetic switch valve.

[0017] Marked number in drawing:1, magnetic sleeve;101, first notch;2, shell;201, second notch;202, opening;3, sealing element;301, annular groove;302, sleeve hole;4, sealing ring structure;401, O-ring;402, rectangular ring;5, valve seat. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0019] As shown in the accompanying drawings Figure 1 to the accompanying drawings Figure 5 As shown in the accompanying drawings

[0020] An internal sealing structure for an electromagnetic switch valve includes a magnetic sleeve 1. A housing 2 is fixedly connected to the right side of the magnetic sleeve 1. A first groove 101 is opened inside the magnetic sleeve 1, and a second groove 201 is opened inside the housing 2. The first groove 101 and the second groove 201 are connected. A sealing element 3 is provided in the first groove 101 of the magnetic sleeve 1. The other end of the sealing element 3 extends into the second groove 201. An annular groove 301 is opened on the outer wall of the sealing element 3. A sealing ring structure 4 is fixedly sleeved on the sealing element 3 at the annular groove 301. The outer wall of the sealing ring structure 4 is in contact with the inner wall of the magnetic sleeve 1.

[0021] In the above technical solution, the magnetic sleeve 1 is an integrally machined annular sleeve. There is a gap between the sealing element 3 and the magnetic sleeve 1 and the housing 2. The degree of freedom of the sealing element 3 is restricted by the gap fit, so that the sealing element 3 can only move axially within a certain range within the first groove 101 and the second groove 201.

[0022] The internal sealing structure of this electromagnetic switch valve is modified by adjusting the sealing method between the sealing element 3 and the magnetic sleeve 1. The traditional mechanical seal structure is changed to a sealing ring structure 4, which simplifies the internal sealing structure of the electromagnetic switch valve, meets the sealing requirements, requires less space, reduces the weight of the electromagnetic valve, reduces the processing and assembly difficulty, significantly reduces the processing and assembly cost of the electromagnetic valve, and shortens the production cycle.

[0023] As attached Figure 3 To be continued Figure 4 As shown, the sealing ring structure 4 includes an O-ring 401, which contacts the outer wall of the sealing element 3. A rectangular ring 402 is fixedly sleeved on the outer wall of the O-ring 401, and the rectangular ring 402 contacts the inner wall of the magnetic sleeve 1. The O-ring 401 is an O-ring rubber sealing ring, and the rectangular ring 402 is made of high wear-resistant polytetrafluoroethylene composite material. The O-ring 401 and the rectangular ring 402 constitute a Glyd ring.

[0024] In the above technical solution, through the design of O-ring 401, O-ring 401 provides sufficient sealing force. Through the design of rectangular ring 402, when the seal 3 moves, the wear compensation effect of rectangular ring 402 is achieved. When the electromagnetic switch valve is working, the pressurized liquid squeezes the rectangular ring 402 to the maximum extent through the elastic deformation of O-ring 401, so that the rectangular ring 402 is tightly attached to the inner wall surface of magnetic sleeve 1, thereby generating a higher additional contact stress that increases with the pressure of the pressurized liquid. Together with the initial contact stress, it prevents the leakage of pressurized liquid.

[0025] As attached Figure 2 To be continued Figure 5As shown, the middle part of the sealing member 3 is provided with a sleeve hole 302, and a valve seat 5 is fixedly sleeved on the outer wall of one end of the sealing member 3 close to the shell 2, the valve seat 5 is located in the second notch 201, and the outer wall of the shell 2 is provided with an opening 202 located on the outer side of the valve seat 5.

[0026] In the above technical scheme, the sealing member 3 is integrally formed with the valve seat 5, the sleeve hole 302 is used to install an axial sliding component (not shown in the figure), the through hole 303 is an exhaust hole or an oil discharge hole, and the opening 202 provided on the outer wall of the shell 2 is a gas outlet or an oil outlet.

[0027] It is worth mentioning that the sealing member 3 is a moving part, when the valve seat 5 at one end of the sealing member 3 contacts the shell 2 after movement, the valve seat 5 at the sealing member 3 forms an end face seal with the shell 2, and the second notch 201 is blocked.

[0028] The specific use mode and effect of the embodiment are as follows:

[0029] The electromagnetic switch valve is a mature technology in the field and has been fully disclosed, and the working principle of the utility model is the same as that of CN219366939U, and details are not repeated here.

[0030] The inner sealing structure of the electromagnetic switch valve adjusts the sealing mode of the sealing member 3 and the magnetic sleeve 1, adjusts the traditional mechanical sealing structure to sealing by the sealing ring structure 4, the sealing ring structure 4 includes an O-shaped ring 401, the O-shaped ring 401 is in contact with the outer wall of the sealing member 3, the outer wall of the O-shaped ring 401 is fixedly sleeved with a rectangular ring 402, the rectangular ring 402 is in contact with the inner wall of the magnetic sleeve 1, the O-shaped ring 401 is an O-shaped rubber sealing ring, the rectangular ring 402 is made of high wear-resistant polytetrafluoroethylene composite material, the O-shaped ring 401 and the rectangular ring 402 form a Gley ring, the structure of the inner sealing structure of the electromagnetic switch valve is simplified, the sealing requirement can be met, the space requirement is low, the weight of the electromagnetic valve is reduced, the processing and assembly difficulty is reduced, the processing and assembly cost of the electromagnetic valve is significantly reduced, and the production cycle is shortened.

[0031] The above structure and process please refer to Figures 1-5 .

[0032] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the technical field can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. An inner sealing structure of an electromagnetic on-off valve comprising a magnetic sleeve (1), characterized in that, The right side of the magnetic sleeve (1) is fixedly connected with a shell (2), a first notch (101) is arranged in the magnetic sleeve (1), a second notch (201) is arranged in the shell (2), the first notch (101) and the second notch (201) are communicated, a sealing element (3) is arranged in the first notch (101), the other end of the sealing element (3) extends into the second notch (201), an annular groove (301) is arranged on the outer wall of the sealing element (3), a sealing ring structure (4) is fixedly sleeved on the annular groove (301), and the outer wall of the sealing ring structure (4) is in contact with the inner wall of the magnetic sleeve (1).

2. An inner seal structure of an electromagnetic on-off valve according to claim 1, wherein The sealing ring structure (4) comprises an O-shaped ring (401), the O-shaped ring (401) is in contact with the outer wall of the sealing element (3), the outer wall of the O-shaped ring (401) is fixedly sleeved with a rectangular ring (402), and the rectangular ring (402) is in contact with the inner wall of the magnetic sleeve (1).

3. An inner seal structure of an electromagnetic on-off valve according to claim 2, wherein The O-shaped ring (401) is an O-shaped rubber sealing ring, the rectangular ring (402) is made of high wear-resistant polytetrafluoroethylene composite material, and the O-shaped ring (401) and the rectangular ring (402) constitute a Glay ring.

4. An inner seal structure of an electromagnetic on-off valve according to claim 1, wherein A sleeve hole (302) is arranged in the middle of the sealing element (3), a valve seat (5) is fixedly sleeved on the outer wall of one end of the sealing element (3) close to the shell (2), the valve seat (5) is located in the second notch (201), an opening (202) is arranged on the outer wall of the shell (2), and the opening (202) is located on the outer side of the valve seat (5).

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