A device for indicating the open / closed state of a valve

Abstract

This utility model relates to the field of valve switches, specifically to a device for indicating the valve's open / closed state, comprising a first rotating disk and a display strip. Rotating a handwheel for opening or closing the valve causes the first rotating disk to rotate. One end of the display strip passes through a status frame, and the other end wraps around the circumference of the first rotating disk. The status frame has an opening, and the display strip has a first mark and a second mark. By rotating the handwheel, the first or second mark on the display strip is moved to the opening position of the status frame, thereby indicating the valve's open / closed state. This solution effectively solves the problem that traditional indicators may fail to accurately reflect the valve's open / closed state due to falling or accidental flipping. Furthermore, when neither the first nor the second mark appears in the opening position of the status frame, it can be determined that the valve is in a partially closed or partially open state.

Description

Technical Field

[0001] This utility model relates to the field of valve switches, and in particular to a device for indicating the valve switch status. Background Technology

[0002] In the complex production processes of oil and gas development, valves play a crucial role. They are not only key to the correct switching of processes, but also an important line of defense to ensure safe production and protect equipment and pipelines from damage. Currently, to indicate the open / closed status of valves, a common practice is to install double-sided indicator signs near the valves. One side of these signs is marked "Open," and the other side is marked "Closed." Operators manually flip the signs to the corresponding marked side based on the actual valve status.

[0003] However, this traditional method of indication reveals significant problems when facing harsh on-site environments, especially in strong winds. Switch indicator signs are easily blown off or lost by the wind, or accidentally flipped to the wrong side after being turned over, resulting in distorted information. This directly affects on-site inspectors' accurate judgment of valve status; they may not be able to quickly obtain the true valve status by looking at the indicator signs, and may even take incorrect actions due to receiving incorrect information. This not only increases the difficulty of inspection work but also brings considerable risks and inconveniences to the safe production of oil and gas development. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies where switch indicator signs are easily dropped or accidentally flipped, thus failing to indicate or accurately indicate the valve switch status, and to provide a device for indicating the valve switch status.

[0005] This utility model provides a device for indicating the open / closed state of a valve, comprising: The first rotating disk can be driven to rotate by rotating the handwheel used to open or close the valve; The display strip has one end passing through the status frame and the other end wrapped around the circumference of the first rotating disk. The status frame has an opening, and the display strip has a first mark and a second mark. When the handwheel is turned to switch the valve to the closed state, the second mark on the display strip can move to the opening position of the status box; When the handwheel is turned to switch the valve to the open state, the first mark on the display strip can move to the opening position of the status frame.

[0006] This invention provides a device for indicating the open / closed state of a valve, wherein rotating the handwheel switches the valve between an open and closed state.

[0007] When the handwheel is turned to switch the valve to the closed state, the handwheel drives the first rotating disk to rotate. The rotation of the first rotating disk, in turn, moves the display strip within the status frame. When the valve is switched to the closed state, the second mark on the display strip is located at the opening of the status frame. Observing the second mark through the opening of the status frame indicates that the valve is currently in the closed state.

[0008] When the handwheel is turned to switch the valve to the open state, the handwheel drives the first rotating disk to rotate. The rotation of the first rotating disk, in turn, moves the display strip within the status frame. When the valve is switched to the open state, the first mark on the display strip is located at the opening of the status frame. Observing the first mark through the opening of the status frame indicates that the valve is currently in the open state.

[0009] This application controls the first or second marker on the display strip to move to the opening position of the status frame by rotating the handwheel, thereby indicating the open / closed state of the valve. This solution effectively solves the problem that traditional indicators may fail to accurately reflect the valve's open / closed state due to falling or accidental flipping. Furthermore, when neither the first nor the second marker appears in the opening position of the status frame, it can be determined that the valve is in a state of not being fully closed or fully open.

[0010] The display strip can be made of fiber or thin steel.

[0011] The first rotating disc can be installed on a pipe communicating with the valve, or it can be installed on a wall, ceiling, or other structural facility attached to the valve. The first rotating disc can be circular or a regular polygon.

[0012] There are several ways in which the handwheel drives the first rotating disk to rotate: multiple gears can be installed between the handwheel and the first rotating disk for transmission; a transmission rod can be used between the handwheel and the first rotating disk for transmission; or the handwheel and the first rotating disk can be connected by a transmission bar, such as a belt or chain.

[0013] Preferably, the valve sleeve of the valve is provided with a rotating ring, and a connecting rod is provided between the handwheel and the rotating ring. The handwheel can drive the rotating ring to rotate. A second rotating disk is coaxially arranged on the first rotating disk. The rotating ring is connected to the second rotating disk through a transmission bar. The rotation of the rotating ring can drive the second rotating disk to rotate, thereby driving the first rotating disk to rotate. This solution realizes the transmission connection between the handwheel and the first rotating disk through the rotating ring, the transmission bar, and the second rotating disk. Compared with multi-gear transmission or transmission rod transmission, the transmission connection of this solution is simpler and facilitates maintenance and repair.

[0014] The drive bar can be a belt or a chain. The first rotating disk can be arranged above or below the second rotating disk.

[0015] Preferably, the second rotating disk is connected below the first rotating disk.

[0016] Preferably, the second rotating disc is mounted on the outer wall of the pipe communicating with the valve.

[0017] Preferably, the distance between the second rotating disk and the rotating ring is 50mm-300mm.

[0018] Preferably, both the rotating ring and the second rotating disk are provided with gear teeth, and the transmission bar is a chain that matches the gear teeth. Power transmission is achieved through the meshing of the chain teeth and the gear teeth. Compared with belt drive, this method provides smoother and more reliable transmission.

[0019] Preferably, the display strip is made of thin steel strip. The thin steel strip is sturdy and durable, easy to roll up, and can be more easily passed through and moved within the status frame.

[0020] Preferably, the system further includes a counter and a third rotating disk. The third rotating disk is coaxially arranged with the first rotating disk, and the rotation of the first rotating disk drives the rotation of the third rotating disk. The third rotating disk is provided with actuating teeth for actuating the counter. The counter records the number of rotations of the handwheel in the opening direction. When the valve is in the closed state, the counter count is zero.

[0021] When the handwheel is rotated to switch the valve to the open state, it can drive the third rotating disk to rotate. The actuating teeth can move the counter from the first direction. After the counter is moved from the first direction a certain number of times, the counter count will automatically increment by one.

[0022] Conversely, when the handwheel rotates to switch the valve to the closed state, it can drive the third rotating disk to rotate in the opposite direction. The actuating teeth can actuate the counter from the second direction (opposite to the first direction). After the counter is actuated from the second direction a certain number of times, the counter count will automatically decrease by one.

[0023] The counter is used to reflect the number of rotations of the handwheel in the opening direction, and there can be several possible correspondences between the displayed value of the counter and the number of rotations of the handwheel. Specifically, these correspondences can be: Correspondence 1: When the counter displays 1, it means that the handwheel has rotated 1 turn in the opening direction; when the counter displays 2, it means that the handwheel has rotated 2 turns in the opening direction.

[0024] Correspondence 2: When the counter displays 2, it means that the handwheel has rotated 1 turn in the opening direction; when the counter displays 4, it means that the handwheel has rotated 2 turns in the opening direction.

[0025] Correspondence 3: When the counter displays 3, it means that the handwheel has rotated 1 turn in the opening direction; when the counter displays 6, it means that the handwheel has rotated 2 turns in the opening direction.

[0026] This solution allows operators to determine the number of rotations the valve has made in the opening direction by checking the counter's value, thus identifying whether the valve is fully open, fully closed, or somewhere in between. Specifically, different numbers of rotations correspond to different degrees of valve opening, providing a method for quantitatively assessing the valve's status.

[0027] The counter can be an electronic counter or a mechanical counter. The electronic counter may have a component for sensing the movement of the actuating teeth and feeding back the information to its internal processor for counting. The mechanical counter may be a gear, which is rotated forward or backward by the actuating teeth to achieve a mechanical counting function.

[0028] Preferably, the counter is a mechanical counter. The mechanical counter uses a purely mechanical principle to achieve its counting function, and its advantage is that it does not rely on an external power supply, thereby improving the reliability of the counting.

[0029] Preferably, the third rotating disk is connected above the first rotating disk.

[0030] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention provides a device for indicating the open / closed state of a valve. By rotating the handwheel, a first or second marker on the display strip is moved to the opening position of the status frame, thereby indicating the valve's open / closed state. This solution effectively solves the problem that traditional indicators may fail to accurately reflect the valve's open / closed state due to falling or accidental flipping. Furthermore, when neither the first nor the second marker appears in the opening position of the status frame, it can be determined that the valve is in a state of being neither fully closed nor fully open. Attached Figure Description

[0031] Figure 1 This is a plan view of a device for indicating the open / closed state of a valve according to the present invention.

[0032] Figure 2 This is a perspective view showing the connection between the rotating ring and the valve sleeve of this utility model.

[0033] Figure 3 This is a perspective view showing the connection between the first rotating disk and the status frame of this utility model.

[0034] Marked in the image: 1-Handwheel, 2-Connecting rod, 3-Valve sleeve, 4-Rotating ring, 5-Pipes, 6-Drive bar, 7-Second rotating disc, 8-First rotating disk, 801-Display tape, 9-Third rotating disc, 901-Toggle tooth, 10-counter, 11-Status box, 12-Valve stem. Detailed Implementation

[0035] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the above-mentioned subject matter of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0036] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0037] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0038] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0039] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0040] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0041] Example 1 like Figures 1 to 3 As shown, a device for indicating the open / closed state of a valve includes a first rotating disk 8, a display strip 801, and a status frame 11.

[0042] Turning the handwheel 1, used to open or close the valve, drives the first rotating disc 8 to rotate. The handwheel 1 is connected to the valve via the valve stem 12. Turning the handwheel 1 clockwise switches the valve to the closed state, and vice versa, turning it counterclockwise switches the valve to the open state. The handwheel 1... Figure 1 Not shown in the diagram. Specifically, the first rotating disk 8 can be a disc.

[0043] One end of the display belt 801 passes through the status box 11, and the other end of the display belt 801 is wound around the circumference of the first rotating disk 8.

[0044] The status box 11 has an opening, and the display strip 801 has a first mark and a second mark. The first mark can be a green block, the word "open," or a symbol representing a valve open. The second mark can be a red block, the word "closed," or a symbol representing a valve closed. Specifically, the size of the first mark and the second mark matches the size of the opening in the status box 11.

[0045] When the handwheel 1 is turned to switch the valve to the closed state, the handwheel 1 drives the first rotating disk 8 to rotate clockwise. The rotation of the first rotating disk 8 then drives the display strip 801 to move to the right in the status box 11, and the second mark of the display strip 801 will move to the opening position of the status box 11.

[0046] When the handwheel 1 is turned to switch the valve to the open state, the handwheel 1 drives the first rotating disk 8 to rotate counterclockwise. The rotation of the first rotating disk 8 then drives the display strip 801 to move to the left in the status box 11, and the first mark of the display strip 801 will move to the opening position of the status box 11.

[0047] When the display shows that other positions of the 801 are in the open position of the status box 11, it indicates that the valve is in a state that is not fully open or not fully closed.

[0048] In an optional embodiment, the valve sleeve 3 of the valve may be provided with a rotating ring 4, and a connecting rod 2 may be provided between the handwheel 1 and the rotating ring 4. The handwheel 1 can drive the rotating ring 4 to rotate. A first rotating disk 8 is connected to a second rotating disk 7 arranged coaxially. The rotating ring 4 is connected to the second rotating disk 7 through a transmission bar 6. The rotation of the rotating ring 4 can drive the second rotating disk 7 to rotate, thereby driving the first rotating disk 8 to rotate. Specifically, the connecting rod 2 is perpendicular to the plane where the handwheel 1 is located, and the connecting rod 2 is also perpendicular to the plane where the rotating ring 4 is located. Both the handwheel 1 and the rotating ring 4 are connected to the connecting rod 2 by welding. Through the above connection mechanism, when the handwheel 1 rotates clockwise, it can drive the first rotating disk 8 to rotate clockwise as well. Conversely, when the handwheel 1 rotates counterclockwise, it can drive the first rotating disk 8 to rotate counterclockwise as well. Specifically, the second rotating disk 7 may be disc-shaped.

[0049] In an optional embodiment, the second rotating disk 7 may be connected below the first rotating disk 8.

[0050] In an optional embodiment, the second rotating disk 7 can be installed on the outer wall of the pipe 5 communicating with the valve. The specific connection method can be welding or bonding.

[0051] In an optional embodiment, the distance between the second rotating disk 7 and the rotating ring 4 can be 50mm-300mm, and the specific distance can be 50mm, 100mm, 150mm, 180mm, 200mm, 250mm or 300mm.

[0052] In an optional embodiment, both the rotating ring 4 and the second rotating disk 7 may be provided with gear teeth, and the transmission bar 6 is a chain that matches the gear teeth. Specifically, the rotating ring 4 and the second rotating disk 7 are located on the same plane so that the transmission bar 6 can be connected between the rotating ring 4 and the second rotating disk 7.

[0053] In an optional embodiment, the display strip 801 may be made of thin steel strip. The width of the display strip 801 may be 30mm-100mm, specifically 30mm, 50mm, 80mm or 100mm.

[0054] In an optional embodiment, a counter 10 and a third rotating disk 9 may be included. The third rotating disk 9 is coaxially arranged with the first rotating disk 8. The rotation of the first rotating disk 8 drives the rotation of the third rotating disk 9. The third rotating disk 9 is provided with a toggle tooth 901, which is used to actuate the counter 10. The counter 10 is used to record the number of rotations of the handwheel 1 in the opening direction. Specifically, the counter 10 is provided with a toggle piece. When the third rotating disk 9 rotates clockwise, the toggle tooth 901 can actuate the toggle piece from front to back. Conversely, when the third rotating disk 9 rotates counterclockwise, the toggle tooth 901 can actuate the toggle piece from back to front. The rotating ring 4 has the same outer diameter as the second rotating disk 7, so when the rotating ring 4 rotates one revolution, the second rotating disk 7 also rotates one revolution. When the toggle piece is actuated from front to back once, the count of the counter 10 increases by one. Conversely, when the toggle piece is actuated from back to front once, the count of the counter 10 decreases by one. For example, in this embodiment, when handwheel 1 rotates counterclockwise three times from the closed state, counter 10 counts to 3, indicating that handwheel 1 has rotated three times. Specifically, the third rotating disk 9 can be disc-shaped.

[0055] In an optional implementation, counter 10 may be a mechanical counter.

[0056] In an optional embodiment, the third rotating disk 9 may be connected above the first rotating disk 8.

[0057] In an optional embodiment, the counter 10 can be fixed to the outer wall of the pipe 5 communicating with the valve by a bracket. The bracket can be welded to both the counter 10 and the outer wall of the pipe 5.

[0058] In an optional embodiment, the status frame 11 can be fixed to the outer wall of the pipe 5 communicating with the valve by a bracket. The bracket can be welded to both the status frame 11 and the outer wall of the pipe 5. The counter 10 and the status frame 11 can be located on the left and right sides of the pipe 5, respectively.

[0059] In an optional embodiment, the first rotating disk 8, the second rotating disk 7, and the third rotating disk 9 can all be made of plastic or metal. Specifically, the metal material can be aluminum alloy or stainless steel.

[0060] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for indicating the open / closed state of a valve, characterized in that, include: The first rotating disk (8) can be driven to rotate by rotating the handwheel (1) used to open or close the valve; Display strip (801), one end of which passes through the status frame (11), and the other end of which is wound around the first rotating disk (8) circumferentially; The status box (11) has an opening, and the display strip (801) has a first mark and a second mark. When the handwheel (1) is turned to switch the valve to the closed state, the second mark on the display strip (801) can move to the opening position of the status box (11); When the handwheel (1) is turned to switch the valve to the open state, the first mark of the display strip (801) can move to the opening position of the status box (11).

2. The device for indicating the open / closed state of a valve according to claim 1, characterized in that, The valve sleeve (3) of the valve is provided with a rotating ring (4), and a connecting rod (2) is provided between the handwheel (1) and the rotating ring (4). The handwheel (1) can drive the rotating ring (4) to rotate. The first rotating disk (8) is connected to a second rotating disk (7) arranged coaxially. The rotating ring (4) is connected to the second rotating disk (7) through a transmission bar (6). The rotation of the rotating ring (4) can drive the second rotating disk (7) to rotate, thereby driving the first rotating disk (8) to rotate.

3. The device for indicating the open / closed state of a valve according to claim 2, characterized in that, The second rotating disk (7) is connected below the first rotating disk (8).

4. The device for indicating the open / closed state of a valve according to claim 3, characterized in that, The second rotating disc (7) is installed on the outer wall of the pipe (5) that is connected to the valve.

5. The device for indicating the open / closed state of a valve according to claim 4, characterized in that, The distance between the second rotating disk (7) and the rotating ring (4) is 50mm-300mm.

6. A device for indicating the open / closed state of a valve according to claim 2, characterized in that, Both the rotating ring (4) and the second rotating disk (7) are provided with gear teeth, and the transmission bar (6) is a chain that matches the gear teeth.

7. A device for indicating the open / closed state of a valve according to any one of claims 1-6, characterized in that, The display strip (801) is made of thin steel strip.

8. A device for indicating the open / closed state of a valve according to claim 7, characterized in that, It also includes a counter (10) and a third rotating disk (9). The third rotating disk (9) is arranged coaxially with the first rotating disk (8). The rotation of the first rotating disk (8) can drive the rotation of the third rotating disk (9). The third rotating disk (9) is provided with a toggle tooth (901), which is used to toggle the counter (10).

9. A device for indicating the open / closed state of a valve according to claim 8, characterized in that, The counter (10) is a mechanical counter.

10. A device for indicating the open / closed state of a valve according to claim 8, characterized in that, The third rotating disk (9) is connected above the first rotating disk (8).

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