Gate valve rod angle detection device

Abstract

The utility model relates to the technical field of angle detection devices, in particular to a gate valve rod angle detection device. Comprising a detection box, the upper end of the detection box is fixedly connected with a butt-joint plate, the upper end of the butt-joint plate is fixedly connected with an air cylinder, the upper end of the butt-joint plate is fixedly connected with a plurality of accompanying rods, the accompanying rods are arranged on the periphery of the air cylinder, and the air cylinder penetrates through the butt-joint plate. The number of the butt joint plates is two, the two butt joint plates are symmetrically arranged up and down relative to the center of the air cylinder, by starting the air cylinder, due to starting of the air cylinder, the air cylinder drives the accompanying rod to move up and down in a reciprocating mode, and therefore the air cylinder pushes the extrusion rod on the lower portion to move downwards. And the lower end of the extrusion rod is fixedly connected with a contact plate, so that when the contact plate is in contact with the reverse motor, the reverse motor is started, and errors caused by manual operation can be avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of angle detection devices, specifically a gate valve stem angle detection device. Background Technology

[0002] The valve stem is a key component of a gate valve, primarily used to connect the valve disc to the operating mechanism (such as a handwheel or electric actuator). Rotating the valve stem moves the valve disc up and down, thereby controlling the flow of fluid. Gate valves are generally used for flow control, and the valve stem plays a crucial role in both transmission and operation.

[0003] Currently, the angle adjustment of the gate valve stem has always been a key concern for users. Since inconsistent adjustment angles and forces may lead to unpredictable results, we need to design a device that can record the rotation angle and minimize manual rotation of the gate valve stem to ensure its accuracy. To this end, we propose a gate valve stem angle detection device. Utility Model Content

[0004] The purpose of this invention is to provide a gate valve stem angle detection device to address the issue raised in the background art that the angle adjustment of the gate valve stem has always been a key concern for users. Since inconsistent adjustment angles and forces may lead to unpredictable results, we need to design a device that can record the rotation angle and minimize the need for manual rotation of the gate valve stem to ensure its accuracy.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gate valve stem angle detection device, comprising a detection box, a docking plate fixedly connected to the upper end of the detection box, a cylinder fixedly connected to the upper end of the docking plate, and an accompanying rod fixedly connected to the upper end of the docking plate. The number of accompanying rods is set to several, and the several accompanying rods are arranged around the cylinder. The cylinder penetrates the docking plate.

[0006] As a further preferred embodiment of this technical solution, the number of the docking plates is set to two, and the two docking plates are symmetrically arranged vertically about the center of the cylinder. A pressing rod is fixedly connected to the lower end of the cylinder. The pressing rod passes through the detection box. A pressure plate is fixedly connected to the end of the pressing rod away from the cylinder. A contact plate is fixedly connected to the end of the pressure plate away from the pressing rod.

[0007] As a further preferred embodiment of this technical solution, a support plate is fixedly connected to the inner wall of the testing box. A limit pad is fixedly connected to the upper end of the support plate, and a reverse motor is fixedly connected to the upper end of the limit pad. A recorder is fixedly connected to the upper end of the reverse motor. The recorder is located below the contact plate. By starting the cylinder, the accompanying rod will move up and down repeatedly due to the cylinder's activation. This will push the lower extrusion rod downwards. Since a contact plate is fixedly connected to the lower end of the extrusion rod, the reverse motor will be activated when the contact plate contacts it. This avoids errors caused by human operation.

[0008] As a further preferred embodiment of this technical solution, a fixing plate is fixedly connected to the front of the limiting pad, and a rotating bolt is rotatably connected to the upper end of the fixing plate. The number of fixing plates is set to two, and the two fixing plates are symmetrically arranged about the center of the reverse motor.

[0009] As a further preferred embodiment of this technical solution, the output end of the reversing motor is rotatably connected to a rotating shaft, the end of the rotating shaft away from the reversing motor is fixedly connected to a rotating rod, the end of the rotating rod away from the rotating shaft is fixedly connected to a turntable, and the end of the turntable away from the rotating rod is fixedly connected to a connecting hook.

[0010] As a further preferred embodiment of this technical solution, a rotating bearing is rotatably connected to the upper end of the support plate, a connecting plate is fixedly connected to the end of the rotating bearing away from the support plate, and a docking column is fixedly connected to the upper end of the connecting plate.

[0011] As a further preferred embodiment of this technical solution, a docking block is fixedly connected to the end of the docking post away from the connecting plate, the upper end of the docking block is engaged with the lower end of the connecting hook, and a docking rod is fixedly connected to the front of the connecting plate.

[0012] This utility model provides a gate valve stem angle detection device, which has the following beneficial effects:

[0013] (1) This utility model uses a starting cylinder. When the cylinder is started, it will drive the accompanying rod to move up and down repeatedly. The cylinder will push the extrusion rod below to move downward. Since a contact plate is fixedly connected to the lower end of the extrusion rod, when the contact plate contacts the reverse motor, the reverse motor will be started. This can avoid errors caused by human operation.

[0014] (2) This utility model starts a reverse motor, which drives the rotating shaft at its output end to rotate. Due to the rotation of the rotating shaft, it will drive the rotating rod to rotate. Since a turntable is fixedly connected to the top of the rotating rod, the rotation of the rotating rod will also drive the connecting hook on the front of the turntable to move. Since the lower end of the connecting hook is engaged with the docking block at the upper end of the docking column, the rotation of the turntable will also drive the connecting plate above the rotating bearing to rotate. Thus, the connecting plate will drive the docking rod on the front to rotate, thereby completing the angle adjustment of the gate valve stem. Since a recorder is fixedly connected to the upper end of the reverse motor, the rotation data will be recorded and detected by the recorder, which will facilitate the subsequent adjustment of the valve stem angle. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 3 This is a cross-sectional view of the testing box of this utility model;

[0018] Figure 4 This is a schematic diagram of the reverse motor structure of this utility model.

[0019] In the diagram: 1. Detection box; 2. Docking plate; 3. Accompanying rod; 4. Cylinder; 5. Extrusion rod; 6. Pressure plate; 7. Contact plate; 8. Reverse motor; 9. Recorder; 10. Support plate; 11. Limiting pad; 12. Fixing plate; 13. Rotating bolt; 14. Rotating shaft; 15. Rotating rod; 16. Turntable; 17. Connecting hook; 18. Docking block; 19. Docking column; 20. Rotating bearing; 21. Connecting plate; 22. Docking rod. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model provides a technical solution: such as Figures 1 to 4 As shown in this embodiment, a gate valve stem angle detection device includes a detection box 1. A docking plate 2 is fixedly connected to the upper end of the detection box 1. A cylinder 4 is fixedly connected to the upper end of the docking plate 2. An accompanying rod 3 is fixedly connected to the upper end of the docking plate 2. The number of accompanying rods 3 is set to several, and the several accompanying rods 3 are arranged around the cylinder 4. The cylinder 4 passes through the docking plate 2.

[0022] The number of docking plates 2 is set to two, and the two docking plates 2 are symmetrically arranged about the center of the cylinder 4. The lower end of the cylinder 4 is fixedly connected to the extrusion rod 5, which passes through the detection box 1. The end of the extrusion rod 5 away from the cylinder 4 is fixedly connected to the pressure plate 6, and the end of the pressure plate 6 away from the extrusion rod 5 is fixedly connected to the contact plate 7.

[0023] The inner wall of the detection box 1 is fixedly connected to a support plate 10. The upper end of the support plate 10 is fixedly connected to a limit pad 11. The upper end of the limit pad 11 is fixedly connected to a reverse motor 8. The upper end of the reverse motor 8 is fixedly connected to a recorder 9. The recorder 9 is located below the contact plate 7. In this way, since the limit pad 11 is set on the surface of the reverse motor 8, the stability of the reverse motor 8 when adjusting the angle can be effectively guaranteed.

[0024] The front of the limiting pad 11 is fixedly connected to a fixing plate 12, and the upper end of the fixing plate 12 is rotatably connected to a rotating bolt 13. The number of fixing plates 12 is set to two, and the two fixing plates 12 are symmetrically arranged about the center of the reverse motor 8.

[0025] The output end of the reverse motor 8 is rotatably connected to a rotating shaft 14. The end of the rotating shaft 14 away from the reverse motor 8 is fixedly connected to a rotating rod 15. The end of the rotating rod 15 away from the rotating shaft 14 is fixedly connected to a turntable 16. The end of the turntable 16 away from the rotating rod 15 is fixedly connected to a connecting hook 17.

[0026] The upper end of the support plate 10 is rotatably connected to a rotating bearing 20, and the end of the rotating bearing 20 away from the support plate 10 is fixedly connected to a connecting plate 21. The upper end of the connecting plate 21 is fixedly connected to a docking post 19.

[0027] One end of the docking post 19, away from the connecting plate 21, is fixedly connected to a docking block 18. The upper end of the docking block 18 engages with the lower end of the connecting hook 17. A docking rod 22 is fixedly connected to the front of the connecting plate 21. When the reverse motor 8 is started, it drives the rotating shaft 14 at its output end to rotate. Due to the rotation of the rotating shaft 14, it will also drive the rotating rod 15 to rotate. Since a turntable 16 is fixedly connected to the top of the rotating rod 15, the rotation of the rotating rod 15 will also drive the turntable 16 to rotate. The connecting hook 17 on the front moves together with the rotating disc 16. Since the lower end of the connecting hook 17 is engaged with the docking block 18 on the upper end of the docking column 19, the rotation of the turntable 16 will also drive the connecting disc 21 above the rotating bearing 20 to rotate. As a result, the connecting disc 21 will drive the docking rod 22 on the front to rotate, thereby completing the angle adjustment of the gate valve stem. Since a recorder 9 is fixedly connected to the upper end of the reverse motor 8, the rotation data will be recorded and detected by the recorder 9, which will facilitate the subsequent adjustment of the valve stem angle.

[0028] This utility model provides a gate valve stem angle detection device, the specific working principle of which is as follows:

[0029] In use, the user needs to connect the top of the connecting rod 22 to the gate valve stem, and then start the cylinder 4. The start of the cylinder 4 will cause the accompanying rod 3 to move up and down repeatedly, thus pushing the lower pressing rod 5 downwards. Since a contact plate 7 is fixedly connected to the lower end of the pressing rod 5, when the contact plate 7 contacts the reverse motor 8, it will start the reverse motor 8. The reverse motor 8 will then drive the rotating shaft 14 at its output end to rotate. The rotation of the rotating shaft 14 will, together with the rotating rod 15, rotate. And since the top of the rotating rod 15 is fixedly connected... With the turntable 16 connected, the rotation of the rotating rod 15 will also drive the connecting hook 17 on the front of the turntable 16 to move together. Since the lower end of the connecting hook 17 is engaged with the docking block 18 on the upper end of the docking column 19, the rotation of the turntable 16 will also drive the connecting plate 21 above the rotating bearing 20 to rotate. Thus, the connecting plate 21 will drive the docking rod 22 on the front to rotate, thereby completing the angle adjustment of the gate valve stem. Since a recorder 9 is fixedly connected to the upper end of the reverse motor 8, the rotation data will be recorded and detected by the recorder 9, which will facilitate the subsequent adjustment of the valve stem angle.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gate valve stem angle detection device, comprising a detection box (1), characterized in that, The upper end of the detection box (1) is fixedly connected to a docking plate (2), the upper end of the docking plate (2) is fixedly connected to a cylinder (4), the upper end of the docking plate (2) is fixedly connected to an accompanying rod (3), the number of accompanying rods (3) is set to several, the several accompanying rods (3) are arranged around the cylinder (4), and the cylinder (4) penetrates the docking plate (2).

2. The gate valve stem angle detection device according to claim 1, characterized in that: The number of docking plates (2) is set to two. The two docking plates (2) are symmetrically arranged about the center of the cylinder (4). The lower end of the cylinder (4) is fixedly connected to a squeezing rod (5). The squeezing rod (5) passes through the detection box (1). The end of the squeezing rod (5) away from the cylinder (4) is fixedly connected to a pressure plate (6). The end of the pressure plate (6) away from the squeezing rod (5) is fixedly connected to a contact plate (7).

3. The gate valve stem angle detection device according to claim 1, characterized in that: The inner wall of the detection box (1) is fixedly connected to a support plate (10), and the upper end of the support plate (10) is fixedly connected to a limiting pad (11). The upper end of the limiting pad (11) is fixedly connected to a reverse motor (8), and the upper end of the reverse motor (8) is fixedly connected to a recorder (9). The recorder (9) is located below the contact plate (7).

4. The gate valve stem angle detection device according to claim 3, characterized in that: The front of the limiting pad (11) is fixedly connected to a fixing plate (12), and the upper end of the fixing plate (12) is rotatably connected to a rotating bolt (13). The number of fixing plates (12) is set to two, and the two fixing plates (12) are symmetrically arranged about the center of the reverse motor (8).

5. The gate valve stem angle detection device according to claim 3, characterized in that: The output end of the reverse motor (8) is rotatably connected to a rotating shaft (14). A rotating rod (15) is fixedly connected to the end of the rotating shaft (14) away from the reverse motor (8). A turntable (16) is fixedly connected to the end of the rotating rod (15) away from the rotating shaft (14). A connecting hook (17) is fixedly connected to the end of the turntable (16) away from the rotating rod (15).

6. The gate valve stem angle detection device according to claim 3, characterized in that: The upper end of the support plate (10) is rotatably connected to a rotating bearing (20), and the end of the rotating bearing (20) away from the support plate (10) is fixedly connected to a connecting plate (21), and the upper end of the connecting plate (21) is fixedly connected to a docking post (19).

7. The gate valve stem angle detection device according to claim 6, characterized in that: The docking post (19) is fixedly connected to a docking block (18) at the end away from the connecting plate (21). The upper end of the docking block (18) is engaged with the lower end of the connecting hook (17). The front of the connecting plate (21) is fixedly connected to a docking rod (22).

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