Magnetic state indicator

Abstract

The utility model relates to the technical field of fluid control equipment, in particular to a magnetic state indicator which comprises a non-magnetic plate, a fixed column is fixedly connected to the upper portion of the non-magnetic plate, a sliding sleeve is movably connected to the outer portion of the fixed column in a sleeved mode, and an upper magnetic ring is fixedly connected to the lower portion of the sliding sleeve. The device further comprises a lower magnetic ring, the lower magnetic ring is used for being connected with a valve element of the one-way control valve to be detected, and the upper magnetic ring and the lower magnetic ring are the same in polarity and are arranged in the same axial direction. The lifting type one-way control valve can be applied to the field of fluid pipelines in the industries of petrochemical engineering, urban construction, energy conservation, environmental protection and the like, and the opening and closing states of the lifting type one-way control valve installed on the fluid pipeline can be detected and indicated. According to the one-way control valve, the magnetic force characteristics of the magnets are utilized, the magnetic force of the two magnets interacts with each other according to the principle that like polarities repel each other, and therefore the action of a valve element in the one-way control valve can be reflected on the state indicator and can be visually seen from the outside conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid control equipment, in particular to a magnetic state indicator. Background Art

[0002] In existing technology, one-way control valves, such as non-return valves, check valves, and non-return valves, are often installed on fluid pipelines in industries such as petrochemicals, urban construction, and energy conservation and environmental protection. Over long-term operation, fluid pressure and corrosive media can erode or corrode the one-way control valves, potentially causing them to fail and open or close in a timely manner. Since the proper opening and closing status of the valve core cannot be observed from the outside, malfunctions such as lax closure or inability to open cannot be detected immediately, disrupting normal production and potentially leading to safety incidents. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a magnetic status indicator which is applied to a one-way control valve and can detect and indicate the opening and closing status of the one-way control valve, thereby facilitating inspection and maintenance.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A magnetic status indicator includes a non-magnetic plate, a fixed column fixedly connected to the upper portion of the non-magnetic plate, a sliding sleeve movably sleeved on the outer portion of the fixed column, and an upper magnetic ring fixedly connected to the lower portion of the sliding sleeve;

[0006] It also includes a lower magnetic ring, which is used to connect with the valve core of the one-way control valve to be tested. The upper magnetic ring and the lower magnetic ring have the same polarity and are arranged in the same axial direction.

[0007] The upper part of the sliding sleeve is connected with a pointer.

[0008] In this structure, utilizing the magnetic properties and principles of magnets, a magnetic ring with the same polarity as the one in the present invention is installed within the one-way control valve to be tested. This is then transmitted unimpeded through a non-magnetic plate structure. The thrust generated by the repulsion of the two magnetic rings causes the valve core of the one-way control valve to move, causing the sliding sleeve to move relative to the fixed post. By observing the height of the upper magnetic ring, sliding sleeve, and pointer, the open / closed state of the one-way control valve can be detected.

[0009] Furthermore, a sliding post is fixedly connected to the exterior of the fixed post, and a spiral slideway is formed on the surface of the sliding sleeve. The sliding post is slidably disposed within the spiral slideway and slidably engages with the spiral slideway. The cooperation between the sliding post and the spiral slideway allows the sliding sleeve to rotate when it is displaced relative to the fixed post, providing a more distinct status indication.

[0010] The top of the non-magnetic plate is fixedly connected to a shell, and a transparent window is provided on the top of the shell to protect the entire structure.

[0011] The transparent window and the shell are both made of transparent materials.

[0012] The non-magnetic plate is used to be fixedly connected to the outer side of the top of the valve body of the control valve to be tested, and can be connected by various conventional methods such as bonding, welding, flange connection, etc.

[0013] The beneficial effects achieved by the utility model are:

[0014] The utility model can be applied to the fluid pipeline field of the petrochemical industry, urban construction, energy conservation and environmental protection and other industries, and can detect and indicate the opening and closing status of the lifting one-way control valve installed on the fluid pipeline.

[0015] The utility model utilizes the magnetic characteristics of magnets and the principle that like polarities repel each other to make the magnetic forces of two magnets interact with each other, thereby being able to reflect the movement of the valve core inside the one-way control valve on the status indicator, which is convenient for intuitive viewing from the outside.

[0016] In addition, the utility model has an optimized structure, is intuitive and convenient, does not require any operation, automatically monitors and indicates, can be fixedly installed on the one-way control valve for detection and indication for a long time, and can also be flexibly disassembled; in addition, the currently produced or installed lifting one-way control valve can be simply modified in the later stage, and the detection indicator can be used for application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a structural diagram of the utility model (the valve core of the one-way control valve to be tested is in an unactivated state);

[0019] Figure 2 yes Figure 1 A top view of

[0020] Figure 3 This is a structural diagram of the utility model (the valve core of the one-way control valve to be tested is in an ascending state);

[0021] Figure 4 yes Figure 3 A top view of

[0022] Figure 5This is a schematic diagram of the structure of the utility model when it is applied to a pressure control valve (the valve core of the one-way control valve to be tested is in an unactivated state);

[0023] Figure 6 This is a structural diagram of the utility model when it is applied to a pressure control valve (the valve core opening state of the one-way control valve to be detected).

[0024] In the figure: 1. Housing; 2. Sliding sleeve; 3. Pointer; 4. Fixed column; 5. Window; 6. Sliding column; 7. Spiral slide; 8. Upper magnetic ring; 9. Non-magnetic plate; 10. Lower magnetic ring; 11. Valve core; 12. Valve body. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0026] Example:

[0027] like Figures 1-6 As shown, a magnetic status indicator includes a non-magnetic plate 9. The function of the non-magnetic plate 9 is to conduct magnetic force, and it neither isolates magnetic fields nor produces ferromagnetic attraction. A fixed column 4 is fixedly connected to the upper portion of the non-magnetic plate 9. A sliding sleeve 2 is movably sleeved on the outer portion of the fixed column 4. The lower portion of the sliding sleeve 2 is fixedly connected to an upper magnetic ring 8.

[0028] The magnetic status indicator also includes a lower magnetic ring 10, which is used to connect to the valve core 11 of the one-way control valve to be tested. The upper magnetic ring 8 and the lower magnetic ring 10 have the same polarity and are arranged in the same axial direction. To facilitate observation, a pointer 3 is fixedly connected to the upper portion of the sliding sleeve 2.

[0029] By leveraging the thrust generated by the repulsion of two like-pole magnetic rings, the valve core 11 of the one-way control valve to be tested moves, causing the sliding sleeve 2 to produce a relative displacement relative to the fixed post 4. By observing the heights of the upper magnetic ring 8, sliding sleeve 2, and pointer 3, the open / closed state of the one-way control valve can be detected. Specifically, when the valve core 11 of the one-way control valve to be tested is closed, gravity forces the pointer 3, sliding sleeve 2, and upper magnetic ring 8 to cause the upper magnetic ring 8 to rest on the upper surface of the non-magnetic plate 9. When the valve core 11 is opened and moved upward by the fluid, the upper magnetic ring 8 and lower magnetic ring 10 have the same polarity. Based on the principle that like-pole magnetic poles repel, the upper magnetic ring 8, along with the sliding sleeve 2, is pushed upward by the repulsive force of the lower magnetic ring 10, moving the upper magnetic ring 8 away from the upper surface of the non-magnetic plate 9. The open / closed state of the valve core 11 within the one-way control valve can be determined by the heights of the pointer 3, sliding sleeve 2, and upper magnetic ring 8.

[0030] Furthermore, a sliding post 6 is fixedly connected to the exterior of the fixed post 4, oriented perpendicularly to the axis of the fixed post 4. A spiral track 7 is formed on the surface of the sliding sleeve 2, spiraling along the axial direction of the sliding sleeve 2. The sliding post 6 slides within and engages with the spiral track 7. The cooperation between the sliding post 6 and the spiral track 7 allows the sliding sleeve 2 to rotate when it is displaced relative to the fixed post 4, providing a more distinct status indication. As the sliding sleeve 2 rotates, the pointer 3 indicates a different position, making it easier to observe.

[0031] The top of the non-magnetic plate 9 is fixedly connected to the shell 1. A transparent window 5 is provided on the top of the shell 1 to protect the entire structure. The transparent window 5 and the shell 1 can be made of transparent materials for easy observation.

[0032] like Figure 5 、 Figure 6 As shown, the non-magnetic plate 9 is fixedly connected to the top outer side of the valve body 12 of the control valve to be tested. This connection can be achieved through various conventional methods, such as bonding, welding, and flange connection. The non-magnetic plate 9 and the structure on top of it are both installed on the outside of the valve body 12 of the control valve to be tested for easy observation. The lower magnetic ring 10 and the valve core 11 of the one-way control valve to be tested can also be connected through various conventional methods, such as bonding, welding, and flange connection.

[0033] The non-magnetic plate 9 can be made of non-magnetic materials such as stainless steel 304 or stainless steel 316. The upper magnetic ring 8 and the lower magnetic ring 10 are both annular structures.

[0034] The utility model utilizes the magnetic properties and magnetic principle of magnets to install magnetic rings of the same polarity as the utility model in the one-way control valve to be tested, and conducts magnetic force unimpeded through the non-magnetic plate 9 structure. In specific applications, when the valve core 11 of the one-way control valve to be tested is closed, Figure 5 As shown, the sliding sleeve 2 stays at the bottom under the action of gravity, and the pointer 3 points to the position of the closing mark; when the valve core 11 is opened under the action of the fluid and moves upward, as shown in FIG. Figure 6 As shown, because the corresponding surfaces of upper and lower magnetic rings 8 and 10 have the same polarity, and based on the principle that like poles repel, upper magnetic ring 8, driven by the repulsive force of lower magnetic ring 10, spirals upward along with sliding sleeve 2 under the control of sliding post 6, causing pointer 3 to deflect and point to the open indicator. When installing the utility model, an open or closed sticker can be pre-applied to facilitate identification of the open or closed indicator where pointer 3 is pointing.

Claims

1. A magnetic status indicator, characterized in that: It comprises a non-magnetic plate (9), the upper portion of the non-magnetic plate (9) is fixedly connected to a fixed column (4), the outer portion of the fixed column (4) is movably sleeved with a sliding sleeve (2), and the lower portion of the sliding sleeve (2) is fixedly connected to an upper magnetic ring (8); It also includes a lower magnetic ring (10), which is used to connect to the valve core (11) of the one-way control valve to be tested. The upper magnetic ring (8) and the lower magnetic ring (10) have the same polarity and are arranged in the same axial direction. The upper part of the sliding sleeve (2) is connected to a pointer (3).

2. The magnetic status indicator according to claim 1, characterized in that The exterior of the fixed column (4) is fixedly connected to a sliding column (6), a spiral slideway (7) is provided on the surface of the sliding sleeve (2), and the sliding column (6) is slidably arranged in the spiral slideway (7) and slidably cooperates with the spiral slideway (7).

3. The magnetic status indicator according to claim 2, characterized in that The top of the non-magnetic plate (9) is fixedly connected to the housing (1), and a transparent window (5) is provided on the top of the housing (1).

4. The magnetic status indicator according to claim 3, characterized in that The transparent window (5) and the housing (1) are both made of transparent materials.

5. The magnetic status indicator according to claim 1, characterized in that: The non-magnetic plate (9) is used to be fixedly connected to the outer side of the top of the valve body (12) of the one-way control valve to be tested.

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