Search

KR-20260066957-A - SHUT OFF VALVE ASSEMBLY WITH PROXIMITY SENSORS

KR20260066957AKR 20260066957 AKR20260066957 AKR 20260066957AKR-20260066957-A

Abstract

The present invention relates to a shut-off valve assembly equipped with a proximity sensor, wherein the volume is reduced by a block structure compared to a conventional shut-off valve, and the current operating status can be visually recognized and confirmed, based on a structure in which a sensing means installed in the actuator body detects in real time whether a piston moving up and down inside a block-shaped main body and an actuator body is operating.

Inventors

  • 이진한

Assignees

  • 주식회사 스타인더스트리

Dates

Publication Date
20260512
Application Date
20241105

Claims (5)

  1. A main body formed in the shape of a rectangular block, having a gas chamber formed inside, a first lower surface having a gas inlet port and a gas outlet port communicating with the gas chamber, and a sealing step protruding from the inner circumference of the gas inlet port toward the ceiling surface of the gas chamber; An actuator body having a second lower surface formed in the shape of a rectangular block and facing the first upper surface of the main body, an operating chamber formed inside having a volume smaller than that of the gas chamber, and a cylindrical rod channel formed penetrating from the bottom surface of the operating chamber to the second lower surface with a certain diameter so as to communicate with the gas chamber; A piston comprising: a lifting member that divides the operating chamber vertically and is capable of moving up and down by compressed air introduced from the outside, and has an outer surface facing the inner surface of the operating chamber; and a lifting rod formed integrally with the lifting member and extending from the lower surface of the lifting member to the gas chamber and moving up and down along the rod channel; and A shut-off valve assembly equipped with a proximity sensor, characterized by including a sensing means formed along the vertical direction on at least two sides of the actuator body and detecting whether the gas inlet port is opened or closed according to the lifting of the lifting rod.
  2. In claim 1, A flat block-shaped body plate having a third lower surface that is seated on the upper surface of the main body and a second upper surface on which the first lower surface is seated, It further includes a communication hole that penetrates the third lower surface and the second upper surface of the body plate to communicate with the rod channel and the gas chamber, and A shut-off valve assembly equipped with a proximity sensor, characterized in that the lifting rod moves up and down through the above communication hole.
  3. In claim 1, The above actuator body is, A first air port formed on at least one side upper side of the actuator body and communicating with the operating chamber, and A second air port formed on at least one lower side of the actuator body and communicating with the operating chamber, and A spring having an upper portion that contacts the ceiling surface of the operating chamber and a lower portion that contacts the upper surface of the elevator, and generating an elastic force that presses the elevator toward the bottom surface of the operating chamber, and A first air pipe forming a flow passage for the operating air that is connected to the first air port and generates air pressure to move the elevator to the bottom surface side of the operating chamber through operating air supplied from a pneumatic source, and A shut-off valve assembly equipped with a proximity sensor, further comprising a second air pipe connected to the second air port and forming a flow passage for the operating air that generates air pressure to move the elevator to the ceiling side of the operating chamber through operating air supplied from the pneumatic source.
  4. In claim 1, The above piston is, A seal pad plate coupled to the lower end of the above lifting rod, and A pad installation groove formed by being recessed on the lower surface of the above-mentioned seal pad plate, and A seal pad that is seated in the pad installation groove and contacts the sealing step when the lifting rod descends to maintain airtightness, and A pad fixing rib extending along the inner edge of the pad installation groove to prevent the seal pad from coming off, and A disc-shaped fixing washer disposed at the lower end of the lifting rod and in contact with the seal pad, and A shut-off valve assembly equipped with a proximity sensor, characterized by further including a seal pad fixing bolt that is screw-coupled to the lower surface of the lifting rod to fix the seal pad plate and the fixing washer.
  5. In claim 1, The above sensing means is, A first permanent magnet mounted on one side of the upper portion of the elevator or the elevator rod, and A second permanent magnet mounted on one side of the lower portion of the above elevator or the above elevator rod, and A first installation guide rail formed by being recessed along the vertical direction on at least two sides of the actuator body, and A second installation guide rail formed by being recessed along the vertical direction on at least two sides of the actuator body and parallel to the first installation guide rail, and A first proximity sensor that is slidably coupled to the first installation guide rail, is electrically connected to an external power source and controller, and detects the proximity of the first permanent magnet, and A second proximity sensor that is slidably coupled to the second installation guide rail, is electrically connected to the external power source and the controller, and detects the proximity of the second permanent magnet, and A first detection lamp that is slidably coupled to the first installation guide rail and electrically connected to the first proximity sensor, and which lights up simultaneously when the first proximity sensor detects the proximity of the first permanent magnet, and A shut-off valve assembly equipped with a proximity sensor, characterized by including a second detection lamp that is slidably coupled to the second installation guide rail and electrically connected to the second proximity sensor, and which lights up simultaneously when the second proximity sensor detects the proximity of the second permanent magnet.

Description

Shut-off valve assembly equipped with proximity sensors The present invention relates to a shut-off valve assembly equipped with a proximity sensor, and more specifically, to a shut-off valve assembly equipped with a proximity sensor that reduces volume by block structuring compared to a conventional shut-off valve and enables visual recognition and verification of the current operating status. Shut-off valves are used to control or block the flow of fluids. Since they can be configured to completely block the flow of a specific line or open only under specific conditions, they are used as essential components in various industrial facilities. Shut-off valves are utilized in various industrial fields, such as controlling fluid flow in pipelines in petrochemical or refining processes, regulating water flow in water supply facilities, sewage treatment and purification facilities, controlling refrigerant flow in heating and cooling systems, and controlling water supply in irrigation systems. Shut-off valves include gate valves, which control fluid flow as a sliding disc moves up and down; globe valves, which are suitable for precise flow control as the disc and seat come into contact with each other to control flow; ball valves, which are suitable for rapid opening and closing as a spherical disc rotates to control fluid flow; and butterfly valves, which allow for a lightweight and compact design as the disc rotates 90 degrees to control flow. These shut-off valves play many roles, such as enhancing safety by immediately shutting off fluid flow in emergencies, facilitating maintenance work by blocking flow in specific lines, and blocking unnecessary flow for the efficient operation of the system. Among these conventional shut-off valves, opening or closing operations were performed using ball valves. However, in these conventional shut-off valves, solenoid valves and pneumatic actuators are used to rotate the ball valve; these solenoid valves and pneumatic actuators are bulky, and it was difficult to visually verify whether they were operating normally. FIG. 1 is a conceptual perspective view illustrating the overall appearance of a shut-off valve assembly equipped with a proximity sensor according to an embodiment of the present invention. FIG. 2 is a conceptual diagram showing the external appearance of a shut-off valve assembly equipped with a proximity sensor according to an embodiment of the present invention, viewed from point A of FIG. 1. FIG. 3 is a conceptual side cross-sectional view illustrating the internal structure of a shut-off valve assembly equipped with a proximity sensor according to an embodiment of the present invention, viewed at point B of FIG. 1. The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but will be implemented in various different forms. The embodiments described in this specification are provided to ensure that the disclosure of the invention is complete and to fully inform those skilled in the art of the scope of the invention. And the present invention is defined only by the scope of the claims. Accordingly, in some embodiments, well-known components, well-known operations, and well-known techniques are not specifically described to avoid the invention being interpreted ambiguously. Additionally, throughout the specification, the same reference numerals refer to the same components, and the terms used (mentioned) in this specification are for describing embodiments and are not intended to limit the invention. In this specification, the singular form includes the plural form unless specifically stated otherwise in the text, and components and operations referred to as 'comprising (or comprising)' do not exclude the presence or addition of one or more other components and operations. Unless otherwise defined, all terms used in this specification (including technical and scientific terms) may be used in a meaning that is commonly understood by those skilled in the art to which the present invention belongs. Also, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless otherwise defined. Hereinafter, preferred embodiments of the present invention will be described with reference to the attached drawings. First, FIG. 1 is a perspective conceptual diagram showing the overall appearance of a shut-off valve assembly equipped with a proximity sensor according to one embodiment of the present invention. Also, FIG. 2 is a conceptual diagram showing the exterior of a shut-off valve assembly equipped with a proximity sensor according to an embodiment of the present invention, viewed from point A of FIG. 1. In addition, FIG. 3 is a conceptual side cross-sectional view illustrating the internal structure of a shut-off va