Ball valve pressurization detection device

Abstract

The utility model belongs to the technical field of ball valve air tightness detection, and particularly relates to a ball valve pressurization detection device which comprises a base, a box body is installed on the base, a screw rod is rotatably installed on the inner wall of a sliding groove, a stepping motor is installed on the side wall of a placing base through a machine base, a first sliding block is assembled in the sliding groove, and a second sliding block is assembled in the first sliding block. A clamping plate is welded to a first sliding block, a moving rod is installed on a moving plate, a first electrode plate is installed on the moving plate, a second motor plate is installed on the inner wall of a plate groove, and under the action of a second spring, two sets of limiting plates are attached to the two ends of the ball valve, a stepping motor operates, and the clamping plate is driven to move towards the limiting plates. When a clamping plate is attached to a limiting plate, a moving rod is completely pushed into a plate groove, a control panel controls a stepping motor to stop operating, the clamping plate and the limiting plate clamp the two ends of the ball valve with moderate force, the clamping force is controlled, the ball valve is prevented from being damaged, and the protection performance of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valve air tightness detection, in particular to a ball valve pressurization detection device. Background Art

[0002] A ball valve is a valve whose opening and closing parts are driven by a valve stem and rotate around the axis of the ball valve. It can flexibly control the confluence, diversion, and switching of flow directions of the media. During the production process of ball valves, in order to ensure the normal use of the ball valves and avoid safety hazards, it is necessary to use an air tightness detection device to test the air tightness of the ball valves.

[0003] The ball valve pressurization detection device is usually composed of components such as a pressure source, a pressure gauge, a valve and a connecting pipe. Its working principle is as follows: connect the ball valve to be tested to the connecting pipe in the detection device, use the pressure source to fill the ball valve with gas of a certain pressure, use the pressure gauge to monitor the gas pressure in the ball valve, and judge the pressure change according to the detection standard. By observing the data changes and stability of the pressure gauge, it is judged whether the ball valve has a leak. For ball valves with leaks, further repairs or replacement of parts are carried out according to the pressure changes and specific locations. Through such a detection device, the leakage problem of the ball valve can be discovered in time to ensure the normal operation and safety of the ball valve during use.

[0004] In the process of testing the ball valve, the existing air tightness detection device often uses a force-applying device such as a cylinder or a jack to clamp the two ends of the ball valve, and then fills the inner cavity of the ball valve with air pressure for testing. Since the clamping force cannot be controlled, when the clamping force is too large, it is easy to damage the ball valve, resulting in poor protection of the device. Therefore, a ball valve pressurization detection device is proposed to address the above problem. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems existing in the prior art, the utility model proposes a ball valve pressurization detection device.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a ball valve pressurization detection device described in the utility model comprises a base, a box body is installed on the base, a box door is installed on the box body, a control panel is installed on the side wall of the box body, a placement seat is installed on the bottom plate of the box body, two groups of slide grooves are symmetrically opened inside the placement seat, a screw rod is rotatably installed on the inner wall of the slide groove, a stepping motor is installed on the side wall of the placement seat through the machine base, the output shaft of the stepping motor is connected to one end of the screw rod, a first slider is installed in the slide groove, a splint is welded on the first slider, an indicator light is installed on the side wall of the splint, a plate groove is opened on the inner wall of the splint, a moving plate is installed in the plate groove, a moving rod is installed on the moving plate, a first electrode sheet is installed on the moving plate, and a The second motor sheet, the moving plate and the inner wall of the plate groove are installed with a first spring, the slide groove is equipped with a second slider, the second spring is installed between the second slider and the inner wall of the slide groove, the second slider is installed with a limit plate, the placement seat is placed with a ball valve, the first electrode sheet and the second motor sheet are connected with the indicator light through an internal circuit, the indicator light and the stepper motor are connected with the control panel through an internal circuit, under the action of the second spring, the two groups of limit plates are attached to the two ends of the ball valve, the stepper motor operates, and drives the clamping plate to move toward the limit plate, when the clamping plate is attached to the limit plate, the moving rod is completely pushed into the plate groove, the control panel controls the stepper motor to stop operating, the clamping plate and the limit plate clamp the two ends of the ball valve with moderate force, thereby realizing the control of the clamping force, avoiding damage to the ball valve, and being beneficial to improving the protection of the device.

[0007] Preferably, a placement groove is provided inside the limit plate, a pressure plate is installed in the placement groove, a sealing gasket is installed on the pressure plate, three groups of screws are installed on the side wall of the limit plate through threaded rotation, the angle between two adjacent groups of screws is 120°, one end of the screw is rotatably connected to the pressure plate, and a knob is welded on the other side of the screw, one group of the limit plates and the clamping plate are provided with rod holes, an air intake pipe is fixedly installed on the limit plate, a pressure gauge is installed on the air intake pipe, an air guide pipe is connected to the other side of the air intake pipe, and the guide pipe An air pump is connected to the other side of the air pipe, and the air pump is installed on the side wall of the box through a machine base. A solenoid valve is installed on the air guide pipe. By screwing all three sets of screws into the limit plate, the sealing gasket is pressed tightly against the two ends of the ball valve, and the sealing gasket seals the two ends of the ball valve. Then, gas with a certain pressure is filled into the ball valve, and the pressure gauge monitors the gas pressure in the ball valve. By observing the data changes and stability of the pressure gauge, it is determined whether there is leakage in the ball valve, thereby realizing the airtightness detection of the ball valve, which is beneficial to improving the detection efficiency.

[0008] The utility model is beneficial in that:

[0009] 1. In the utility model, under the action of the second spring, two sets of limit plates are in contact with the two ends of the ball valve, and the stepper motor is operated to drive the clamping plate to move toward the limit plate. When the clamping plate is in contact with the limit plate, the moving rod is completely pushed into the plate groove, and the control panel controls the stepper motor to stop operating. The clamping plate and the limit plate clamp the two ends of the ball valve with moderate force, thereby realizing the control of the clamping force, avoiding damage to the ball valve, and being beneficial to improving the protection of the device.

[0010] 2. The utility model screws all three sets of screws into the limit plate, and then the sealing gaskets are pressed tightly against the two ends of the ball valve, and the sealing gaskets seal the two ends of the ball valve. Then, a certain pressure of gas is filled into the ball valve, and a pressure gauge monitors the gas pressure in the ball valve. By observing the data changes and stability of the pressure gauge, it is determined whether the ball valve has leakage, thereby realizing the airtightness detection of the ball valve, which is beneficial to improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] Figure 1 It is a schematic diagram of a three-dimensional structure from a first-person perspective;

[0013] Figure 2 It is a schematic diagram of the three-dimensional structure of the placement seat;

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure at the moving rod;

[0015] Figure 4 It is a schematic diagram of the internal three-dimensional structure from a side view.

[0016] In the figure: 1. base; 2. box body; 3. box door; 4. control panel; 5. placement seat; 6. slide groove; 7. screw rod; 8. stepping motor; 9. first slider; 10. clamping plate; 11. indicator light; 12. plate groove; 13. moving plate; 14. moving rod; 15. first electrode sheet; 16. second motor sheet; 17. first spring; 18. second slider; 19. second spring; 20. limit plate; 21. placement groove; 22. pressure plate; 23. sealing gasket; 24. screw rod; 25. knob; 26. air inlet pipe; 27. pressure gauge; 28. air guide pipe; 29. ​​air pump; 30. solenoid valve; 31. ball valve. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0018] See also Figure 1-4As shown, a ball valve pressurization detection device includes a base 1, a box body 2 is installed on the base 1, a box door 3 is installed on the box body 2, a control panel 4 is installed on the side wall of the box body 2, a placement seat 5 is installed on the bottom plate of the box body 2, two groups of slide grooves 6 are symmetrically opened inside the placement seat 5, a screw rod 7 is rotatably installed on the inner wall of the slide groove 6, a stepping motor 8 is installed on the side wall of the placement seat 5 through the machine base, the output shaft of the stepping motor 8 is connected to one end of the screw rod 7, a first slider 9 is assembled in the slide groove 6, and a first slider 9 is welded on the first slider 9 A clamping plate 10 is connected, an indicator light 11 is installed on the side wall of the clamping plate 10, a plate groove 12 is opened on the inner wall of the clamping plate 10, a moving plate 13 is installed in the plate groove 12, a moving rod 14 is installed on the moving plate 13, a first electrode sheet 15 is installed on the moving plate 13, a second motor sheet 16 is installed on the inner wall of the plate groove 12, a first spring 17 is installed on the moving plate 13 and the inner wall of the plate groove 12, a second slider 18 is installed in the slide groove 6, and a second spring 19 is installed between the second slider 18 and the inner wall of the slide groove 6 The second slider 18 is provided with a limit plate 20, a ball valve 31 is placed on the placement seat 5, the first electrode sheet 15 and the second motor sheet 16 are connected to the indicator light 11 through an internal circuit, the indicator light 11 and the stepping motor 8 are connected to the control panel 4 through an internal circuit, a placement groove 21 is provided inside the limit plate 20, a pressure plate 22 is installed in the placement groove 21, a sealing gasket 23 is installed on the pressure plate 22, and three sets of screws 24 are installed on the side wall of the limit plate 20 through threaded rotation, and two adjacent sets of screws 2 The angle between the four is 120°, one end of the screw 24 is rotatably connected to the pressure plate 22, and a knob 25 is welded on the other side of the screw 24. A rod hole is opened on one set of the limit plates 20 and the clamping plate 10, an air intake pipe 26 is fixedly installed on the limit plate 20, a pressure gauge 27 is installed on the air intake pipe 26, an air guide pipe 28 is connected to the other side of the air guide pipe 28, and an air pump 29 is connected to the other side of the air guide pipe 28. The air pump 29 is installed on the side wall of the box body 2 through the base, and a solenoid valve 30 is installed on the air guide pipe 28;During operation, the existing air tightness detection device often uses a force-applying device such as a cylinder or a jack to clamp the two ends of the ball valve 31 during the process of detecting the ball valve 31, and then fills the inner cavity of the ball valve 31 with air pressure for testing. Since the clamping force cannot be controlled, when the clamping force is too large, it is easy to cause damage to the ball valve, resulting in poor protection of the device. By placing the ball valve 31 on the placement seat 5, under the action of the second spring 19, the two groups of limit plates 20 are attached to the two ends of the ball valve 31, and the two groups of stepper motors 8 are controlled by the control panel 4 to operate. The stepper motor 8 operates to drive the screw rod 7 to rotate, and the screw rod 7 drives the first slider 9 to move horizontally. The slider 9 drives the clamping plate 10 to move horizontally. During the movement of the clamping plate 10 toward the limiting plate 20, the moving rod 14 on the clamping plate 10 contacts the limiting plate 20 and is gradually pushed into the plate groove 12. When the clamping plate 10 is in contact with the limiting plate 20, the moving rod 14 is completely pushed into the plate groove 12, and the first electrode sheet 15 and the second motor sheet 16 contact. At this time, the indicator light 11 is turned on and sends an electrical signal to the control panel 4. Then the control panel 4 controls the stepping motor 8 to stop operating. When both sets of stepping motors 8 stop operating, the clamping plate 10 and the limiting plate 20 clamp the two ends of the ball valve 31 with moderate force, thereby realizing the control of the clamping force.

[0019] The limiting plate 20 is in contact with both ends of the ball valve 31. At this time, the sealing gasket 23 on the limiting plate 20 is in contact with both ends of the ball valve 31. By turning the knob 25, the screw 24 is driven to rotate, and the screw 24 pushes the pressure plate 22 to move horizontally. The pressure plate 22 pushes the sealing gasket 23 to move horizontally. All three sets of screws 24 are screwed into the limiting plate 20. At this time, the sealing gasket 23 is pressed tightly against both ends of the ball valve 31, and the sealing gasket 23 seals both ends of the ball valve 31.

[0020] Then the air pump 29 starts to operate, and fills the ball valve 31 with gas of a certain pressure through the air guide pipe 28 and the air inlet pipe 26. Then the solenoid valve 30 is closed, and the model of the pressure gauge 27 is YX-100. The pressure gauge 27 monitors the gas pressure in the ball valve 31. By observing the data changes and stability of the pressure gauge, it is determined whether the ball valve 31 has leakage, thereby realizing the air tightness detection of the ball valve 31. This structure can control the clamping force to avoid damage to the ball valve 31, which is beneficial to improving the protection of the device.

[0021] Working principle: In the process of testing the ball valve 31, the existing air tightness detection device often uses a force-applying device such as a cylinder or a jack to clamp the two ends of the ball valve 31, and then fills the inner cavity of the ball valve 31 with air pressure for testing. Since the clamping force cannot be controlled, when the clamping force is too large, it is easy to damage the ball valve, resulting in poor protection of the device. By placing the ball valve 31 on the placement seat 5, under the action of the second spring 19, the two groups of limit plates 20 are attached to the two ends of the ball valve 31, and the two groups of stepper motors 8 are controlled by the control panel 4 to operate. The stepper motor 8 operates The screw rod 7 rotates, the screw rod 7 drives the first slider 9 to move horizontally, and the first slider 9 drives the clamping plate 10 to move horizontally. During the movement of the clamping plate 10 toward the limiting plate 20, the moving rod 14 on the clamping plate 10 contacts the limiting plate 20 and is gradually pushed into the plate groove 12. When the clamping plate 10 is in contact with the limiting plate 20, the moving rod 14 is completely pushed into the plate groove 12, and the first electrode sheet 15 and the second motor sheet 16 contact. At this time, the indicator light 11 is turned on and sends an electrical signal to the control panel 4. Then the control panel 4 controls the stepping motor 8 to stop operating. When both sets of stepper motors 8 stop operating, the clamping plate 10 and the limit plate 20 clamp the two ends of the ball valve 31 with moderate force, thereby realizing the control of the clamping force; the limit plate 20 is in contact with the two ends of the ball valve 31, and the sealing gasket 23 on the limit plate 20 is in contact with the two ends of the ball valve 31. By turning the knob 25, the screw 24 is driven to rotate, and the screw 24 pushes the pressure plate 22 to move horizontally, and the pressure plate 22 pushes the sealing gasket 23 to move horizontally, and all three sets of screws 24 are screwed into the limit plate 20. At this time, the sealing gasket 23 is pressed tightly against the two ends of the ball valve 31, and the sealing gasket 23 is tightly pressed against the two ends of the ball valve 31. The gasket 23 seals both ends of the ball valve 31; then the air pump 29 operates to fill the ball valve 31 with gas of a certain pressure through the air guide pipe 28 and the air inlet pipe 26, and then the solenoid valve 30 is closed. The model of the pressure gauge 27 is YX-100. The pressure gauge 27 monitors the gas pressure in the ball valve 31. By observing the data changes and stability of the pressure gauge, it is determined whether the ball valve 31 has leakage, thereby realizing the air tightness detection of the ball valve 31. This structure can control the clamping force to avoid damage to the ball valve 31, which is beneficial to improving the protection of the device.

[0022] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A ball valve pressurization detection device, characterized in that: The utility model comprises a base (1), a box body (2) is installed on the base (1), a box door (3) is installed on the box body (2), a control panel (4) is installed on the side wall of the box body (2), a placement seat (5) is installed on the bottom plate of the box body (2), two groups of slide grooves (6) are symmetrically opened inside the placement seat (5), a screw rod (7) is rotatably installed on the inner wall of the slide groove (6), a stepping motor (8) is installed on the side wall of the placement seat (5) through the machine base, the output shaft of the stepping motor (8) is connected to one end of the screw rod (7), a first sliding block (9) is installed in the slide groove (6), a clamping plate (10) is welded on the first sliding block (9), and an indicator light (10) is installed on the side wall of the clamping plate (10). 1), a plate groove (12) is provided on the inner wall of the clamping plate (10), a movable plate (13) is installed in the plate groove (12), a movable rod (14) is installed on the movable plate (13), a first electrode plate (15) is installed on the movable plate (13), a second motor plate (16) is installed on the inner wall of the plate groove (12), a first spring (17) is installed on the movable plate (13) and the inner wall of the plate groove (12), a second slider (18) is installed in the slide groove (6), a second spring (19) is installed between the second slider (18) and the inner wall of the slide groove (6), a limit plate (20) is installed on the second slider (18), and a ball valve (31) is placed on the placement seat (5).

2. A ball valve pressurization detection device according to claim 1, characterized in that: The first electrode sheet (15) and the second motor sheet (16) are connected to the indicator light (11) through an internal circuit, and the indicator light (11) and the stepping motor (8) are connected to the control panel (4) through an internal circuit.

3. A ball valve pressurization detection device according to claim 1, characterized in that: A placement groove (21) is provided inside the limiting plate (20), a pressing plate (22) is installed in the placement groove (21), and a sealing gasket (23) is installed on the pressing plate (22).

4. A ball valve pressurization detection device according to claim 1, characterized in that: Three groups of screw rods (24) are rotatably mounted on the side wall of the limiting plate (20), and the angle between two adjacent groups of screw rods (24) is 120°. One end of the screw rod (24) is rotatably connected to the pressure plate (22), and a knob (25) is welded to the other side of the screw rod (24).

5. A ball valve pressurization detection device according to claim 1, characterized in that: A rod hole is provided on one set of the limiting plates (20) and the clamping plate (10), an air intake pipe (26) is fixedly mounted on the limiting plates (20), and a pressure gauge (27) is mounted on the air intake pipe (26).

6. A ball valve pressurization detection device according to claim 5, characterized in that: The other side of the air inlet pipe (26) is connected to an air guide pipe (28), and the other side of the air guide pipe (28) is connected to an air pump (29). The air pump (29) is installed on the side wall of the box body (2) through a machine base, and a solenoid valve (30) is installed on the air guide pipe (28).

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