A flameproof electric valve for mining

Abstract

The utility model belongs to the technical field of electric valves, and specifically relates to a flameproof electric valve for mining. The utility model comprises: a valve body, which comprises: a pipe part; a pressure relief assembly arranged on the pipe walls on both sides of the pipe part, which comprises: a connecting pipe connected to the pipe part, a sealing member arranged in the connecting pipe, and at least two pressure relief ports arranged on the connecting pipe; wherein the sealing member is slidably connected to the connecting pipe; and the sealing member is suitable for being away from the pipe part when the internal pressure of the pipe part is too large, so that the air pressure or hydraulic pressure in the pipe part is discharged from the pressure relief port of the connecting pipe. The flameproof electric valve for mining is away from the pipe part through the sealing member when the internal pressure of the pipe part is too large, so that the air pressure or hydraulic pressure in the pipe part is discharged from the pressure relief port of the connecting pipe, thereby achieving automatic pressure relief and preventing damage to the pipeline or valve.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric valves, and in particular relates to a flameproof electric valve for mining. Background Art

[0002] Flameproof electric valve is a kind of valve, which is opened and closed by circuit control. Flameproof electric valve is usually used in mines and has good explosion-proof function.

[0003] At present, the existing electric valves do not have automatic pressure relief function. The rust and scaling of metal components such as valve stems and valve cores will cause the valve core to get stuck and the electric valve cannot work normally, causing high pressure to damage the connecting pipes. It is very troublesome to find the damaged ports and repair them, which cannot meet the needs of actual use.

[0004] Therefore, in order to solve the above problems, it is necessary to design a mining explosion-proof electric valve. Utility Model Content

[0005] The utility model aims to provide a flameproof electric valve for mining, so as to solve the technical problem that the existing electric valves cannot automatically release pressure.

[0006] In order to solve the above technical problems, the utility model provides a mining explosion-proof electric valve, comprising:

[0007] The valve body comprises: a pipe portion;

[0008] The pressure relief assembly is arranged on the pipe walls on both sides of the pipe part, and comprises: a connecting pipe connected to the pipe part, a sealing member arranged in the connecting pipe, and at least two pressure relief ports arranged on the connecting pipe;

[0009] The sealing member is slidably connected to the connecting pipe; and

[0010] The sealing member is adapted to be away from the pipe portion when the internal pressure of the pipe portion is too large, so that the air pressure or the hydraulic pressure in the pipe portion is discharged from the pressure relief port of the connecting pipe.

[0011] Furthermore, the pressure relief assembly further comprises: a cap and a spring threadedly connected to the connecting pipe; wherein

[0012] The two ends of the spring are respectively connected to the cover cap and the sealing member.

[0013] Furthermore, the pressure relief assembly further comprises: two gaskets;

[0014] The sealing member is disposed between the two gaskets; and

[0015] Both sides of the sealing member are connected to two gaskets.

[0016] Furthermore, two ends of the spring are respectively connected to the cap and any gasket.

[0017] Furthermore, the pressure relief assembly further comprises: a guide column connected to the cap;

[0018] The two gaskets, the seal and the spring are sleeved on the outer side of the guide column; and

[0019] The two gaskets and the sealing member are slidably connected to the guide column.

[0020] Furthermore, a hollow portion is provided in the middle of the guide column.

[0021] The beneficial effects of the utility model are:

[0022] (I) In the normal state of the utility model, the spring supports the gasket and the seal to separate the pipe part and the pressure relief port. When the pressure in the pipe part is too large, the air pressure or the hydraulic pressure pushes the gasket and the seal to slide along the outer side of the guide column and the inner side of the connecting pipe and compresses the spring. At this time, the gasket and the seal are away from the pipe part, and the pipe part is connected to the pressure relief port through the connecting pipe, so that the air pressure or the hydraulic pressure in the pipe part is discharged from the pressure relief port of the connecting pipe. After the pressure returns to normal, the spring rebounds and drives the gasket and the seal to reset. Through the above steps, automatic pressure relief is achieved to prevent damage to the pipeline or valve.

[0023] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a stereogram of the preferred embodiment of the whole of the utility model;

[0027] Figure 2 It is a stereogram of a preferred embodiment of the hydraulic assembly of the utility model;

[0028] Figure 3 It is a stereoscopic diagram of a preferred embodiment of the connection relationship between the gasket and the sealing member of the utility model.

[0029] In the figure:

[0030] Valve body 1, pipe part 11;

[0031] The pressure relief assembly 2 , the connecting pipe 21 , the pressure relief port 211 , the sealing member 22 , the cover cap 23 , the spring 24 , the gasket 25 , the guide column 26 , and the hollow portion 261 . DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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. Example 1

[0033] like Figures 1 to 3 As shown, this embodiment provides a mining flameproof electric valve, including:

[0034] A valve body 1 comprises: a pipe portion 11; a pressure relief assembly 2 arranged on the pipe walls on both sides of the pipe portion 11, comprising: a connecting pipe 21 connected to the pipe portion 11, a sealing member 22 arranged in the connecting pipe 21 and at least two pressure relief ports 211 arranged on the connecting pipe 21; wherein the sealing member 22 is slidably connected to the connecting pipe 21; and the sealing member 22 is suitable for being away from the pipe portion 11 when the internal pressure of the pipe portion 11 is too large, so that the gas pressure or hydraulic pressure in the pipe portion 11 can be discharged from the pressure relief ports 211 of the connecting pipe 21.

[0035] The pressure relief assembly 2 also includes: a cap 23 and a spring 24 threadedly connected to the connecting pipe 21; wherein the two ends of the spring 24 are respectively connected to the cap 23 and the seal 22; wherein the spring 24 is used to support the seal 22 to prevent the seal 22 from moving under normal pressure to cause gas or liquid leakage.

[0036] The pressure relief assembly 2 further includes: two gaskets 25; wherein the seal 22 is arranged between the two gaskets 25; and both sides of the seal 22 are connected to the two gaskets 25; wherein by arranging the two gaskets 25, the seal 22 is limited and the sealing performance of the seal 22 is enhanced.

[0037] Two ends of the spring 24 are connected to the cap 23 and any gasket 25 respectively.

[0038] The pressure relief assembly 2 also includes: a guide column 26 connected to the cap 23; wherein the two gaskets 25, the seal 22 and the spring 24 are all sleeved on the outside of the guide column 26; and the two gaskets 25 and the seal 22 are slidably connected to the guide column 26; by setting the guide column 26, the effect of guiding the gasket 25 and the seal 22 is achieved.

[0039] The middle of the guide column 26 is provided with a hollow portion 261 ; by providing the hollow portion 261 , the manufacturing cost can be reduced.

[0040] In this embodiment, under normal conditions, the spring 24 supports the gasket 25 and the seal 22 to separate the pipe portion 11 and the pressure relief port 211. When the pressure in the pipe portion 11 is too high, the air pressure or the hydraulic pressure pushes the gasket 25 and the seal 22 to slide along the outer side of the guide column 26 and the inner side of the connecting pipe 21 and compresses the spring 24. At this time, the gasket 25 and the seal 22 are away from the pipe portion 11, and the pipe portion 11 is connected to the pressure relief port 211 through the connecting pipe 21, so that the air pressure or the hydraulic pressure in the pipe portion 11 is discharged from the pressure relief port 211 of the connecting pipe 21. After the pressure returns to normal, the spring 24 rebounds to drive the gasket 25 and the seal 22 to reset. Through the above steps, automatic pressure relief is achieved to prevent damage to the pipeline or valve.

[0041] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0042] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0044] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A flameproof electric valve for mining, characterized in that: include: A valve body (1) comprising: a pipe portion (11); A pressure relief assembly (2) arranged on the tube walls on both sides of a tube portion (11), comprising: a connecting tube (21) connected to the tube portion (11), a sealing member (22) arranged in the connecting tube (21), and at least two pressure relief ports (211) arranged on the connecting tube (21); wherein The sealing member (22) is slidably connected to the connecting pipe (21); and The sealing member (22) is adapted to be moved away from the pipe portion (11) when the internal pressure of the pipe portion (11) is too high, so that the air pressure or the hydraulic pressure in the pipe portion (11) is discharged from the pressure relief port (211) of the connecting pipe (21).

2. A flameproof electric valve for mining as claimed in claim 1, characterized in that: The pressure relief assembly (2) further comprises: a cap (23) and a spring (24) threadedly connected to the connecting pipe (21); wherein Two ends of the spring (24) are respectively connected to the cover cap (23) and the sealing member (22).

3. A flameproof electric valve for mining as claimed in claim 2, characterized in that: The pressure relief assembly (2) further comprises: two gaskets (25); wherein The sealing member (22) is arranged between two gaskets (25); and Both sides of the sealing member (22) are connected to two gaskets (25).

4. A mine flameproof electric valve as claimed in claim 3, characterized in that: Two ends of the spring (24) are respectively connected to the cover cap (23) and any gasket (25).

5. A flameproof electric valve for mining as claimed in claim 4, characterized in that: The pressure relief assembly (2) further comprises: a guide column (26) connected to the cover cap (23); wherein The two gaskets (25), the seal (22) and the spring (24) are all sleeved on the outside of the guide column (26); and The two gaskets (25) and the sealing member (22) are slidably connected to the guide column (26).

6. A flameproof electric valve for mining as claimed in claim 5, characterized in that: A hollow portion (261) is provided in the middle of the guide column (26).

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