An intelligent sealing detection device for safety valve production

Abstract

The present invention discloses an intelligent sealing detection device for the production of safety valves, which relates to the technical field of safety valve detection. The device includes an installation base, a clamping device, a pressing device, a detection device, and a cleaning device. The installation base is connected to the clamping device, the installation base is connected to the pressing device, the pressing device is firmly connected to the detection device, and the installation base is connected to the cleaning device. The installation base is used to provide an installation position and support for other devices. The safety valve is clamped and fixed by the clamping device, and then the iron filings in the safety valve are cleaned by the cleaning device. The safety valve is connected by the pressing device to prevent air leakage at the connection between the safety valve and the pressing device. When starting the detection, the detection device detects whether the air pressure in the safety valve reaches the standard. If the air pressure in the safety valve does not reach the standard, the detection device starts to detect the inside of the safety valve until the leakage point position is detected, and then the leakage point is marked.

Description

Technical Field

[0001] The present invention relates to the technical field of safety valve detection, and specifically to an intelligent detection device for the sealing performance of safety valves during production. Background Art

[0002] A safety valve is in a normally closed state under the action of external force on the opening and closing member. When the medium pressure in the equipment or pipeline rises above the specified value, it prevents the medium pressure in the pipeline or equipment from exceeding the specified value by discharging the medium to the outside of the system.

[0003] Due to the nature of its work, the sealing performance of the safety valve is severely tested. Most of the existing safety valve leakage detection devices are assembled manually and then tested, which makes it easy for air to leak at the connection between the safety valve and the detection device during the detection of the safety valve, and it cannot be completely sealed. At the same time, when detecting the safety valve, the specific position of the safety valve cannot be found, and other devices are required to detect the position of the leakage point, which is rather cumbersome. At the same time, there are some iron filings in the valve after the production of the safety valve, which may enter the inside of the valve core during the detection, causing certain wear to the valve core and reducing the service life of the valve core. Summary of the Invention

[0004] The purpose of the present invention is to provide an intelligent detection device for the sealing performance of safety valves during production to solve the problems raised in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] An intelligent detection device for the sealing performance of safety valves during production includes an installation base, a clamping device, a pressing device, a detection device, and a cleaning device. The installation base is connected to the clamping device, the installation base is connected to the pressing device, the pressing device is firmly connected to the detection device, and the installation base is connected to the cleaning device.

[0007] The installation base serves as the main installation foundation, providing an installation position and support for other devices. After the device assembly is completed, the safety valve is clamped and fixed by the clamping device, and then the iron filings in the safety valve are cleaned by the cleaning device to prevent the iron filings from entering the valve body after the experiment starts and causing frictional damage to the valve body. After the cleaning is completed, the safety valve is connected by the pressing device. Through the feedback of the pressure value on the connection contact surface between the pressing device and the safety valve, the installation base adjusts the angle so that the pressure value is adjusted within a safe range to prevent air leakage at the connection contact surface between the pressing device and the safety valve due to uneven force on the connection contact surface, improving the detection efficiency of the sealing performance of the safety valve. When starting the detection, the detection device detects whether the air pressure in the safety valve reaches the standard. If the air pressure in the safety valve does not reach the standard, the detection device starts to detect the inside of the safety valve until the leakage point position is detected and the leakage point is marked.

[0008] Furthermore, a first driving cylinder, a driving motor, a driving screw, a first adjusting cylinder, a second adjusting cylinder and a second driving cylinder are provided on the mounting base. The output end of the first driving cylinder is fixedly connected to the pressing device, the output end of the second driving cylinder is fixedly connected to the pressing device, the first driving cylinder and the second driving cylinder are fixedly connected. The output end of the driving motor is fixedly connected to the driving screw, and the driving screw is threadedly connected to the cleaning device. There are four first adjusting cylinders, and the output ends of the four first adjusting cylinders are fixedly connected to the bottom of the clamping device. There are four second adjusting cylinders, and the output ends of the four second adjusting cylinders are fixedly connected to the clamping device.

[0009] When it is necessary to clean the inside of the safety valve, the driving motor outputs a rotational torque to drive the driving screw to rotate. The rotation of the driving screw drives the cleaning device to move. Until the cleaning device moves to the working position, the driving screw stops moving. Then the cleaning device starts to clean the inside of the safety valve, cleaning the residual iron filings and dust in the safety valve, preventing the high pressure during the detection from causing the iron filings to enter the valve body and damaging the inside of the iron filings. When it is necessary to press the safety valve, the first driving cylinder and the second driving cylinder output displacements to drive the pressing device to move. Until the pressing device is completely connected to the safety valve, the output displacement is stopped. Then, according to the pressure of the connection surface between the pressing device and the safety valve detected by the pressing device, the flatness of the connection surface between the pressing device and the safety valve is detected. According to the detection result, the first adjusting cylinder and the second adjusting cylinder adjust the clamping device, so that the clamping device deflects and drives the safety valve to deflect, so that the pressure of the connection surface between the safety valve and the pressing device tends to be within a controllable range, ensuring the flatness of the connection between the safety valve and the pressing device.

[0010] Furthermore, a first installation groove, a second installation groove, a third installation groove, a fourth installation groove and a first installation cavity are provided on the mounting base. The clamping device is placed in the first installation groove, and the four first adjusting cylinders are placed in the first installation groove. The four first adjusting cylinders are distributed at the right angles at the bottom of the clamping device. The four second adjusting cylinders are placed in the first installation groove, and the four second adjusting cylinders are distributed on both sides of the clamping device. The pressing device is placed in the second installation groove, and the pressing device is slidably connected to the second installation groove. The cleaning device is placed in the third installation groove, and the cleaning device is slidably connected to the third installation groove. The driving screw is placed in the third installation groove, and the end of the driving screw away from the driving motor is rotatably connected to the third installation groove. The first driving cylinder is placed in the fourth installation groove, and the first driving cylinder is fixedly connected to the fourth installation groove. The second driving cylinder is placed in the fourth installation groove, and the second driving cylinder is fixedly connected to the fourth installation groove. The driving motor is placed in the first installation cavity, and the driving motor is fixedly connected to the first installation cavity.

[0011] The first installation groove provides an installation position for the clamping device. The four first adjusting cylinders and the four second adjusting cylinders respectively output displacements to adjust the angle of the clamping device in the first installation groove. The second installation groove provides an installation position for the pressing device and enables the pressing device to move within the second installation groove. The third installation groove provides an installation position for the cleaning device and also provides an installation position for the driving screw, providing a connection condition for the connection between the driving screw and the cleaning device. The fourth installation groove provides an installation positions for the first driving cylinder and the second driving cylinder.

[0012] Further, the pressing device includes a support plate, a pressing disc, and a sealing gasket. The support plate is placed in the second installation groove, and the support plate is slidably connected to the second installation groove. The output end of the first driving cylinder is fixedly connected to the support plate, the second driving cylinder is fixedly connected to the pressing disc, and one end of the pressing disc away from the second driving cylinder is fixedly connected to the sealing gasket.

[0013] The support plate, as the main supporting component, is used to support the pressing disc and the sealing gasket. When it is necessary to press the safety valve, the first driving cylinder outputs a displacement to drive the support plate to move, and at the same time, the second driving cylinder drives the sealing gasket to move until the sealing gasket stops moving after being connected to the safety valve. According to the pressure detection result at the connection between the safety valve and the sealing gasket, the first adjusting cylinder and the second adjusting cylinder adjust the angle of the clamping device so that the pressure value at the connection between the safety valve and the sealing gasket reaches the allowable range, ensuring the flatness at the connection between the safety valve and the sealing gasket, and thus ensuring the airtightness of the safety valve during the detection process.

[0014] Further, a number of installation holes are provided on the pressing disc. Detection springs and magnets are provided in the number of installation holes, cavities are provided outside the number of installation holes, and electromagnetic coils are provided in the cavities. The detection springs are fixedly connected to the installation holes, and one end of the detection springs away from the installation holes is fixedly connected to the magnets. An air inlet hole is also provided on the pressing disc, and the detection device and the air inlet hole are on the same axis.

[0015] By providing the installation holes, installation positions are provided for the detection springs and the magnets. By providing the air inlet hole, high-pressure gas can enter the safety valve through the air inlet hole. When the safety valve and the sealing gasket are pressed, due to the extrusion at the connection between the sealing gasket and the safety valve causing deformation, the magnet moves. The movement of the magnet causes the magnetic field generated by the magnet to move, changing the magnetic flux in the electromagnetic coil and thus generating an induced current. The magnitude of the pressing force is judged according to the corresponding value of the generated induced current. When the values of the induced currents generated at different positions exceed the controllable range, the first adjusting cylinder and the second adjusting cylinder adjust the angle of the clamping device, thereby changing the position of the safety valve, and thus adjusting the flatness of the connection between the safety valve and the sealing gasket to prevent air leakage of the safety valve during the test due to uneven connection between the safety valve and the sealing gasket.

[0016] Further, the sealing gasket is provided with an air inlet through hole and a detection hole. The air inlet through hole and the air inlet hole are located on the same axis and are connected. There are several detection holes, and several detection holes are correspondingly connected to several mounting holes. One end of the magnet away from the mounting hole is placed in the detection hole.

[0017] The high-pressure gas can enter the safety valve through the air inlet through hole. The detection hole provides an installation position for the magnet, so that one end of the magnet away from the mounting hole can be installed in the detection hole, so that when the sealing gasket is deformed by force, a force can be applied to the magnet.

[0018] Further, the detection device includes a multi-stage cylinder, a rotary motor, a mounting cylinder, a detection probe plate, and a detection probe. The multi-stage cylinder is placed in the air inlet through hole. The multi-stage cylinder is fixedly connected to the pressing disc. The output end of the multi-stage cylinder is fixedly connected to the rotary motor. The output end of the rotary motor is fixedly connected to the mounting cylinder. A pressure sensor is provided on the mounting cylinder. The output end of the mounting cylinder is fixedly connected to the detection probe plate. There are four detection probe plates. Several detection probes are provided on the detection probe plate. Several probe mounting grooves are provided on the detection probe. Detection probes and return springs are provided on the probe mounting grooves. The return spring is fixedly connected to the probe mounting groove. One end of the return spring away from the probe mounting groove is fixedly connected to the detection probe. The detection probe is slidably connected to the probe mounting groove.

[0019] The probe mounting groove provides an installation position for the detection probe. The air pressure value inside the safety valve is detected by the pressure sensor. When the air pressure value inside the safety valve is smaller than the input air pressure value, the output displacement of the mounting cylinder drives the detection probe plate to move. The movement of the detection probe plate drives the detection probe to move until the detection probe stops moving after moving to the working position. At the same time, the rotary motor starts to rotate and drives the mounting cylinder to rotate. The rotation of the mounting cylinder drives the detection probe plate to rotate. The rotation of the detection probe plate drives the detection probe to rotate, so that the detection probe starts to detect the safety valve. When the detection probe rotates one week, the multi-stage cylinder outputs displacement to drive the rotary motor to move, thereby driving the detection probe to detect deeper into the safety valve. When rotating to the air leakage position inside the safety valve, due to the relatively high air pressure inside the safety valve, the gas inside the valve flows to the air leakage position, making the gas flow rate at the air leakage point position increase. As a result, there is a force on the detection probe near the air leakage point, causing the detection probe to be sucked to the air leakage point position and marking the air leakage point. After the marking is completed, since the detection probe is still rotating, under the dual action of rotation and the return spring, the detection probe is reset, so that the detection probe can mark the next air leakage point position.

[0020] Further, a liquid storage cavity, a partition groove and a liquid outlet channel are also arranged in the detection probe. The liquid storage cavity is filled with a marking liquid. The liquid storage cavity is communicated with the liquid outlet channel. The partition groove is arranged on the liquid outlet channel. The liquid outlet channel penetrates through the partition groove. The liquid outlet channel is communicated with the probe installation groove. The partition groove is communicated with the probe installation groove. The partition groove is provided with a partition plate. The detection probe is provided with an abutting groove. The partition plate abuts against the abutting groove. The partition plate is provided with a liquid outlet through hole.

[0021] By providing the liquid storage cavity, a storage position is provided for the marking liquid. When the detection probe is sucked to the air leakage position, the detection probe moves outwards to drive the return spring to stretch. At the same time, the movement of the detection probe drives the abutting groove to push the partition plate upwards until the liquid outlet through hole moves to the liquid outlet channel, so that the marking liquid in the liquid storage cavity flows out to the liquid outlet channel, and then flows to the probe installation groove through the liquid outlet channel, so that the detection probe can mark the air leakage position.

[0022] Further, the cleaning device includes a mounting block, a suction pump, a manipulator, a first telescopic cylinder, a steering motor, a second telescopic cylinder and an adsorption tube. The mounting block is threadedly connected with the driving screw. The mounting block is slidably connected with the mounting base. The mounting block is fixedly connected with the suction pump. The suction pump is fixedly connected with the manipulator. The manipulator is fixedly connected with the first telescopic cylinder. The output end of the first telescopic cylinder is fixedly connected with the steering motor. The steering motor is fixedly connected with the second telescopic cylinder. The output end of the second telescopic cylinder is fixedly connected with the adsorption tube. The input end of the suction pump is in pipeline communication with the adsorption tube.

[0023] By providing the mounting block, a mounting position is provided for other components. When the safety valve needs to be cleaned, the manipulator drives the first telescopic cylinder to move. The movement of the first telescopic cylinder drives the steering motor to move. The movement of the steering motor drives the second telescopic cylinder to move. The movement of the second telescopic cylinder drives the adsorption tube to move until the adsorption tube moves into the safety valve. Then, after the adsorption tube is driven by the second telescopic cylinder to move to the corresponding position in the safety valve, the suction pump is turned on so that the adsorption tube can adsorb the iron filings and dust in the safety valve. At the same time, the displacement of the output of the first telescopic cylinder drives the steering motor to move, and then the steering motor drives the second telescopic cylinder to move. The movement of the second telescopic cylinder drives the adsorption tube to move. Through the first telescopic cylinder and the steering motor, the adsorption tube can comprehensively adsorb and clean the inside of the safety valve.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. By adjusting the angle of the mounting base through the pressure on the connection contact surface between the pressing device and the safety valve, the pressure value is adjusted to be within the safe range, preventing air leakage at the connection contact surface between the pressing device and the safety valve due to uneven force on the connection contact surface, and improving the detection efficiency of the sealing performance of the safety valve.

[0026] 2. Detect the specific location of the air leakage point through the detection device, and then mark the air leakage point for subsequent repair of the air leakage point of the safety valve.

[0027] 3. By setting up a cleaning device, clean the iron filings in the safety valve to prevent the iron filings from entering the valve core of the safety valve during the detection process, exacerbating the wear of the safety valve and reducing the service life of the safety valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the overall structural schematic diagram of the present invention;

[0029] Figure 2 is the structural schematic diagram of the mounting base of the present invention;

[0030] Figure 3 is the structural schematic diagram of the cleaning device of the present invention;

[0031] Figure 4 is the structural schematic diagram of the drive screw of the present invention;

[0032] Figure 5 is the structural schematic diagram of the pressing device of the present invention;

[0033] Figure 6 is Figure 5 the enlarged view of the partial A of

[0034] Figure 7 is the structural schematic diagram of the pressing disc of the present invention;

[0035] Figure 8 is Figure 7 the enlarged view of the partial B of

[0036] Figure 9 is the structural schematic diagram of the detection probe of the present invention;

[0037] Figure 10 is Figure 9 the enlarged view of the partial C of

[0038] In the figure: 1. Installation base; 11. First driving cylinder; 12. Driving motor; 13. Driving screw; 14. First adjusting cylinder; 15. Second adjusting cylinder; 16. Second driving cylinder; 111. First installation groove; 112. Second installation groove; 113. Third installation groove; 114. Fourth installation groove; 115. First installation cavity; 2. Clamping device; 3. Pressing device; 31. Support plate; 32. Pressing disc; 321. Installation hole; 322. Air inlet hole; 3211. Detection spring; 3212. Magnet; 33. Sealing gasket; 331. Air inlet through hole; 332. Detection hole; 4. Detection device; 41. Multi-stage cylinder; 42. Rotating motor; 43. Installation cylinder; 44. Detection probe plate; 45. Detection probe; 451. Probe installation groove; 452. Liquid storage cavity; 453. Partition groove; 454. Liquid outlet channel; 46. Detection probe; 461. Contact recess; 47. Return spring; 48. Partition plate; 481. Liquid outlet through hole; 49. Pressure sensor; 5. Cleaning device; 51. Installation block; 52. Suction pump; 53. Manipulator; 54. First telescopic cylinder; 55. Steering motor; 56. Second telescopic cylinder; 57. Adsorption tube. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] Embodiment: As Figures 1 - 10 shown, the present invention provides a technical solution for an intelligent detection device for the sealing performance in the production of safety valves, including an installation base 1, a clamping device 2, a pressing device 3, a detection device 4, and a cleaning device 5. The installation base 1 is connected to the clamping device 2, the installation base 1 is connected to the pressing device 3, the pressing device 3 is firmly connected to the detection device 4, and the installation base 1 is connected to the cleaning device 5.

[0041] The mounting base 1 serves as the main mounting foundation, providing a mounting position and support for other devices. After the device assembly is completed, the safety valve is clamped and fixed by the clamping device 2. Then, the cleaning device 5 cleans the iron filings inside the safety valve to prevent the iron filings from entering the valve body after the experiment starts, causing frictional damage to the valve body. After the cleaning is completed, the pressing device 3 connects to the safety valve. By feedback of the pressure value on the connection contact surface between the pressing device 3 and the safety valve, the mounting base 1 adjusts the angle to make the pressure value within the safe range, preventing air leakage at the connection contact surface between the pressing device 3 and the safety valve due to uneven force on the connection contact surface, improving the detection efficiency of the sealing performance of the safety valve. The detection starts, and the detection device 4 detects whether the air pressure inside the safety valve reaches the standard. If the air pressure inside the safety valve does not reach the standard, the detection device 4 starts to detect the inside of the safety valve until the leakage point is detected and marked, and then the detection is completed.

[0042] As Figures 1 - 5 shown, the mounting base 1 is provided with a first driving cylinder 11, a driving motor 12, a driving screw 13, a first adjusting cylinder 14, a second adjusting cylinder 15 and a second driving cylinder 16. The output end of the first driving cylinder 11 is fixedly connected to the pressing device 3. The output end of the second driving cylinder 16 is fixedly connected to the pressing device 3. The first driving cylinder 11 and the second driving cylinder 16 are fixedly connected. The output end of the driving motor 12 is fixedly connected to the driving screw 13. The driving screw 13 is threadedly connected to the cleaning device 5. There are four first adjusting cylinders 14, and the output ends of the four first adjusting cylinders 14 are fixedly connected to the bottom of the clamping device 2. There are four second adjusting cylinders 15, and the output ends of the four second adjusting cylinders 15 are fixedly connected to the clamping device 2.

[0043] When it is necessary to clean the inside of the safety valve, the driving motor 12 outputs a rotational torque to drive the driving screw 13 to rotate. The rotation of the driving screw 13 drives the cleaning device 5 to move until the cleaning device 5 moves to the working position, then the driving screw 13 stops moving, and then the cleaning device 5 starts to clean the inside of the safety valve, cleaning the residual iron filings and dust inside the safety valve to prevent the high pressure during the detection from causing the iron filings to enter the valve body and damage the inside of the iron filings. When it is necessary to press the safety valve, the first driving cylinder 11 and the second driving cylinder 16 output displacements to drive the pressing device 3 to move until the pressing device 3 is completely connected to the safety valve, then stop outputting displacements. Then, according to the pressure detected by the pressing device 3 on the connection surface between the pressing device 3 and the safety valve, the flatness of the connection surface between the pressing device 3 and the safety valve is detected. According to the detection result, the first adjusting cylinder 14 and the second adjusting cylinder 15 adjust the clamping device 2, causing the clamping device 2 to deflect and drive the safety valve to deflect, so that the pressure on the connection surface between the safety valve and the pressing device 3 tends to be within the controllable range, ensuring the flatness of the connection between the safety valve and the pressing device 3.

[0044] As shown Figures 1 - 4 in the figure, the mounting base 1 is provided with a first mounting groove 111, a second mounting groove 112, a third mounting groove 113, a fourth mounting groove 114 and a first mounting cavity 115. The clamping device 2 is placed in the first mounting groove 111. Four first adjusting cylinders 14 are placed in the first mounting groove 111 and are distributed at the right angles at the bottom of the clamping device 2. Four second adjusting cylinders 15 are placed in the first mounting groove 111 and are distributed on both sides of the clamping device 2. The pressing device 3 is placed in the second mounting groove 112 and is slidably connected to the second mounting groove 112. The cleaning device 5 is placed in the third mounting groove 113 and is slidably connected to the third mounting groove 113. The driving screw 13 is placed in the third mounting groove 113, and one end of the driving screw 13 away from the driving motor 12 is rotatably connected to the third mounting groove 113. The first driving cylinder 11 is placed in the fourth mounting groove 114 and is fixedly connected to the fourth mounting groove 114. The second driving cylinder 16 is placed in the fourth mounting groove 114 and is fixedly connected to the fourth mounting groove 114. The driving motor 12 is placed in the first mounting cavity 115 and is fixedly connected to the first mounting cavity 115.

[0045] The first mounting groove 111 provides a mounting position for the clamping device 2. The four first adjusting cylinders 14 and the four second adjusting cylinders 15 respectively output displacements to adjust the angle of the clamping device 2 in the first mounting groove 111. The second mounting groove 112 provides a mounting position for the pressing device 3 and at the same time enables the pressing device 3 to move in the second mounting groove 112. The third mounting groove 113 provides a mounting position for the cleaning device 5 and at the same time provides a mounting position for the driving screw 13, providing a connection condition for the connection between the driving screw 13 and the cleaning device 5. The fourth mounting groove 114 provides a mounting position for the first driving cylinder 11 and the second driving cylinder 16.

[0046] As shown Figures 5 - 7 in the figure, the pressing device 3 includes a support plate 31, a pressing disc 32 and a sealing cushion plate 33. The support plate 31 is placed in the second mounting groove 112 and is slidably connected to the second mounting groove 112. The output end of the first driving cylinder 11 is fixedly connected to the support plate 31. The second driving cylinder 16 is fixedly connected to the pressing disc 32. One end of the pressing disc 32 away from the second driving cylinder 16 is fixedly connected to the sealing cushion plate 33.

[0047] The support plate 31 serves as the main support component for supporting the pressing disc 32 and the sealing gasket 33. When it is necessary to press the safety valve, the first driving cylinder 11 outputs displacement to drive the support plate 31 to move. At the same time, the second driving cylinder 16 drives the sealing gasket 33 to move until the sealing gasket 33 and the safety valve are connected and then stop moving. According to the pressure detection result at the connection between the safety valve and the sealing gasket 33, the first adjusting cylinder 14 and the second adjusting cylinder 15 adjust the angle of the clamping device so that the pressure value at the connection between the safety valve and the sealing gasket 33 reaches the allowable range, ensuring the flatness at the connection between the safety valve and the sealing gasket 33, and thus ensuring the airtightness of the safety valve during the detection process.

[0048] As Figures 5 - 7 shown, a plurality of mounting holes 321 are provided on the pressing disc 32. A detection spring 3211 and a magnet 3212 are provided in the plurality of mounting holes 321. A cavity is provided outside the plurality of mounting holes 321, and an electromagnetic coil is provided in the cavity. The detection spring 3211 is fixedly connected to the mounting hole 321. One end of the detection spring 3211 away from the mounting hole 321 is fixedly connected to the magnet 3212. An air inlet hole 322 is also provided on the pressing disc 32. The detection device 4 and the air inlet hole 322 are located on the same axis.

[0049] By providing the mounting holes 321, a mounting position is provided for the detection spring 3211 and the magnet 3212. By providing the air inlet hole 322, high-pressure gas can enter the safety valve through the air inlet hole 322. When the safety valve and the sealing gasket 33 are pressed, due to the extrusion at the connection between the sealing gasket 33 and the safety valve, deformation occurs, causing the magnet 3212 to move. The movement of the magnet 3212 causes the magnetic field generated by the magnet 3212 to move, changing the magnetic flux in the electromagnetic coil and thus generating an induced current. The magnitude of the pressing force is judged according to the corresponding value of the generated induced current. When the values of the induced currents generated at different positions exceed the controllable range, the first adjusting cylinder 14 and the second adjusting cylinder 15 adjust the angle of the clamping device 2, so that the position of the safety valve changes, thereby adjusting the flatness of the connection between the safety valve and the sealing gasket 33 and preventing air leakage of the safety valve during the test due to uneven connection between the safety valve and the sealing gasket 33.

[0050] As Figures 5 - 7 shown, an air inlet through-hole 331 and a detection hole 332 are provided on the sealing gasket 33. The air inlet through-hole 331 and the air inlet hole 322 are located on the same axis, and the air inlet through-hole 331 is communicated with the air inlet hole 322. There are a plurality of detection holes 332, and the plurality of detection holes 332 are correspondingly communicated with the plurality of mounting holes 321. One end of the magnet 3212 away from the mounting hole 321 is placed in the detection hole 332.

[0051] High-pressure gas can enter the safety valve through the intake through-hole 331. The detection hole 332 provides an installation position for the magnet 3212, enabling the end of the magnet 3212 away from the mounting hole 321 to be installed into the detection hole 332, so that when the sealing gasket 33 is deformed by force, it can exert a force on the magnet 3212.

[0052] As Figures 7 - 10 shown, the detection device 4 includes a multi-stage cylinder 41, a rotary motor 42, a mounting cylinder 43, a detection probe plate 44, and a detection probe 45. The multi-stage cylinder 41 is placed inside the intake through-hole 331. The multi-stage cylinder 41 is fixedly connected to the pressing disc 32. The output end of the multi-stage cylinder 41 is fixedly connected to the rotary motor 42. The output end of the rotary motor 42 is fixedly connected to the mounting cylinder 43. A pressure sensor 49 is provided on the mounting cylinder 43. The output end of the mounting cylinder 43 is fixedly connected to the detection probe plate 44. There are four detection probe plates 44. A number of detection probes 45 are provided on the detection probe plate 44. A number of probe mounting grooves 451 are provided on the detection probe 45. A detection probe 46 and a return spring 47 are provided on the probe mounting groove 451. The return spring 47 is fixedly connected to the probe mounting groove 451. The end of the return spring 47 away from the probe mounting groove 451 is fixedly connected to the detection probe 46. The detection probe 46 is slidably connected to the probe mounting groove 451. The detection probe 46 is made of a lightweight material.

[0053] By providing the probe mounting groove 451, an installation position is provided for the detection probe 46. The air pressure value inside the safety valve is detected by the pressure sensor 49. When the air pressure value inside the safety valve is smaller than the input air pressure value, the output displacement of the mounting cylinder 43 drives the detection probe plate 44 to move. The movement of the detection probe plate 44 drives the detection probe 45 to move until the detection probe 45 moves to the working position and then the mounting cylinder 43 stops outputting displacement. At the same time, the rotary motor 42 starts to rotate and drives the mounting cylinder 43 to rotate. The rotation of the mounting cylinder 43 drives the detection probe plate 44 to rotate. The rotation of the detection probe plate 44 drives the detection probe 45 to rotate, enabling the detection probe 45 to start detecting the safety valve. After the detection probe 45 rotates one week, the multi-stage cylinder 41 outputs displacement to drive the rotary motor 42 to move, thereby driving the detection probe 45 to detect deeper into the safety valve. When it rotates to the air leakage position inside the safety valve, due to the relatively high air pressure inside the safety valve, the gas inside the valve flows towards the air leakage position, increasing the gas flow velocity at the air leakage point position. As a result, there is a force on the detection probe 46 near the air leakage point, causing the detection probe 46 to be sucked to the air leakage point position and marking the air leakage point. After the marking is completed, since the detection probe 45 is still rotating, under the dual action of rotation and the return spring 47, the detection probe 46 is reset, enabling the detection probe 46 to mark the next air leakage point position.

[0054] As Figures 7 - 10As shown, a liquid storage cavity 452, a partition groove 453 and a liquid outlet passage 454 are further provided in the detection probe 45. A marking liquid is contained in the liquid storage cavity 452. The liquid storage cavity 452 is communicated with the liquid outlet passage 454. The partition groove 453 is arranged on the liquid outlet passage 454. The liquid outlet passage 454 penetrates through the partition groove 453. The liquid outlet passage 454 is communicated with the probe installation groove 451. The partition groove 453 is communicated with the probe installation groove 451. A partition plate 48 is provided in the partition groove 453. An abutting groove 461 is provided on the detection probe 46. The partition plate 48 abuts against the abutting groove 461. A liquid outlet through hole 481 is provided on the partition plate 48.

[0055] By providing the liquid storage cavity 452, a storage position is provided for the marking liquid. When the detection probe 46 is sucked to the air leakage position, the reset spring 47 is stretched by the outward movement of the detection probe 46. At the same time, the movement of the detection probe 46 drives the abutting groove 461 to push the partition plate 48 upward until the liquid outlet through hole 481 moves to the liquid outlet passage 454, so that the marking liquid in the liquid storage cavity 452 flows out to the liquid outlet passage 454 and then flows into the probe installation groove 451 through the liquid outlet passage 454, so that the detection probe 46 can mark the air leakage position.

[0056] As Figures 2 - 3 As shown, the cleaning device 5 includes a mounting block 51, a suction pump 52, a manipulator 53, a first telescopic cylinder 54, a steering motor 55, a second telescopic cylinder 56 and an adsorption tube 57. The mounting block 51 is threadedly connected to the driving screw 13. The mounting block 51 is slidably connected to the mounting base 1. The mounting block 51 is fixedly connected to the suction pump 52. The suction pump 52 is fixedly connected to the manipulator 53. The manipulator 53 is fixedly connected to the first telescopic cylinder 54. The output end of the first telescopic cylinder 54 is fixedly connected to the steering motor 55. The steering motor 55 is fixedly connected to the second telescopic cylinder 56. The output end of the second telescopic cylinder 56 is fixedly connected to the adsorption tube 57. The input end of the suction pump 52 is in pipeline communication with the adsorption tube 57.

[0057] The installation block 51 provides an installation position for other components. When the safety valve needs to be cleaned, the manipulator 53 drives the first telescopic cylinder 54 to move. The movement of the first telescopic cylinder 54 drives the steering motor 55 to move. The movement of the steering motor 55 drives the second telescopic cylinder 56 to move. The movement of the second telescopic cylinder 56 drives the suction pipe 57 to move until the suction pipe 57 moves into the safety valve. Then, after the second telescopic cylinder 56 drives the suction pipe 57 to move to the corresponding position inside the safety valve, the suction pump 52 is turned on so that the suction pipe 57 can adsorb iron filings and dust inside the safety valve. At the same time, the first telescopic cylinder 54 outputs displacement to drive the steering motor 55 to move, and then the steering motor 55 drives the second telescopic cylinder 56 to move. The movement of the second telescopic cylinder 56 drives the suction pipe 57 to move. Through the first telescopic cylinder 54 and the steering motor 55, the suction pipe 57 can comprehensively adsorb and clean the inside of the safety valve.

[0058] The working principle of the present invention: At the beginning, the safety valve is clamped and fixed by the clamping device 2, and then the safety valve is cleaned by the cleaning device 5. After the cleaning is completed, the safety valve starts to be pressed. The first driving cylinder 11 and the second driving cylinder 16 drive the sealing gasket 33 to move until the sealing gasket 33 stops moving after being connected to the safety valve. Due to the extrusion at the connection between the sealing gasket 33 and the safety valve, deformation occurs, causing the magnet 3212 to move, thereby changing the magnetic flux in the electromagnetic coil to generate an induced current. The magnitude of the pressing force is judged according to the corresponding value of the generated induced current. When the induced current values generated at different positions exceed the controllable range, the clamping device 2 is adjusted in angle by the first adjusting cylinder 14 and the second adjusting cylinder 15 to adjust the flatness of the connection between the safety valve and the sealing gasket 33. Then, high-pressure gas is sent into the safety valve. After stability is maintained, the air pressure value inside the safety valve is detected by the pressure sensor 49. When the air pressure value inside the safety valve is smaller than the input air pressure value, the installation cylinder drives the detection probe 45 to move to the working position and then the installation cylinder 43 stops outputting displacement. At the same time, through the output displacement and torque of the rotating motor 42 and the installation cylinder 43, the detection probe 45 starts to detect the safety valve. After the detection probe 45 rotates one week, the multi-stage cylinder 41 outputs displacement to drive the rotating motor 42 to move, thereby driving the detection probe 45 to detect deeper into the safety valve. When rotating to the air leakage position inside the safety valve, the detection probe 46 is sucked to the air leakage point position. When the detection probe 46 is sucked to the air leakage position, the detection probe 46 moves outward to drive the reset spring 47 to stretch. At the same time, the movement of the detection probe 46 drives the abutting groove 461 to push the partition plate 48 upward until the liquid outlet through hole 481 moves to the liquid outlet channel 454, so that the marked liquid in the liquid storage cavity 452 flows out to the liquid outlet channel 454, and then flows to the probe installation groove 451 through the liquid outlet channel 454, so that the detection probe 46 can mark the air leakage position, thus realizing the accurate marking of the air leakage position.

[0059] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. An intelligent sealing detection device for safety valve production, characterized in that: The intelligent detection device includes a mounting base (1), a clamping device (2), a pressing device (3), a detection device (4) and a cleaning device (5). The mounting base (1) is connected to the clamping device (2), the mounting base (1) is connected to the pressing device (3), the pressing device (3) is fixedly connected to the detection device (4), and the mounting base (1) is connected to the cleaning device (5). A first adjustment cylinder (14) and a second adjustment cylinder (15) are provided on the mounting base (1). The first adjustment cylinder (14) is connected to the clamping device (2), and the second adjustment cylinder (15) is connected to the clamping device (2). The pressing device (3) includes a pressing disc (32) and a sealing gasket (33). A plurality of mounting holes (321) are provided on the pressing disc (32). A detection spring (3211) and a magnet (3212) are provided in the plurality of mounting holes (321). The detection spring (3211) is fixedly connected to the mounting hole (321), and one end of the detection spring (3211) away from the mounting hole (321) is fixedly connected to the magnet (3212). The sealing gasket (33) is connected to the mounting base (1). A cavity is provided outside the plurality of mounting holes (321), and an electromagnetic coil is provided in the cavity. An air inlet hole (322) is further provided on the pressing disc (32). The detection device (4) and the air inlet hole (322) are located on the same axis. The detection device (4) includes a multi-stage cylinder (41), a rotary motor (42) and a detection probe (45). The multi-stage cylinder (41) is fixedly connected to the pressing disc (32). The output end of the multi-stage cylinder (41) is fixedly connected to the rotary motor (42). A plurality of probe mounting grooves (451) are provided on the detection probe (45). A detection probe (46) and a return spring (47) are provided on the probe mounting groove (451). The return spring (47) is fixedly connected to the probe mounting groove (451). A liquid storage cavity (452) and a liquid outlet channel (454) are provided in the detection probe (45), and the liquid storage cavity (452) is communicated with the liquid outlet channel (454).

2. The intelligent sealing detection device for the production of safety valves according to claim 1, characterized in that: A first driving cylinder (11), a driving motor (12), a driving screw (13) and a second driving cylinder (16) are further provided on the mounting base (1). The output end of the first driving cylinder (11) is fixedly connected to the pressing device (3). The output end of the second driving cylinder (16) is fixedly connected to the pressing device (3). The first driving cylinder (11) and the second driving cylinder (16) are fixedly connected. The output end of the driving motor (12) is fixedly connected to the driving screw (13). The driving screw (13) is threadedly connected to the cleaning device (5). There are four first adjustment cylinders (14), and the output ends of the four first adjustment cylinders (14) are fixedly connected to the bottom of the clamping device (2). There are four second adjustment cylinders (15), and the output ends of the four second adjustment cylinders (15) are fixedly connected to the clamping device (2).

3. An intelligent sealing detection device for the production of safety valves according to claim 2, characterized in that: The installation base (1) is provided with a first installation groove (111), a second installation groove (112), a third installation groove (113), a fourth installation groove (114) and a first installation cavity (115). The clamping device (2) is placed in the first installation groove (111). Four first adjusting cylinders (14) are placed in the first installation groove (111). The four first adjusting cylinders (14) are distributed at the right-angled corners of the bottom of the clamping device (2). Four second adjusting cylinders (15) are placed in the first installation groove (111). The four second adjusting cylinders (15) are distributed on both sides of the clamping device (2). The pressing device (3) is placed in the second installation groove (112). The pressing device (3) is slidably connected to the second installation groove (112). The cleaning device (5) is placed in the third installation groove (113). The cleaning device (5) is slidably connected to the third installation groove (113). The first driving cylinder (11) is placed in the fourth installation groove (114). The first driving cylinder (11) is fixedly connected to the fourth installation groove (114). The second driving cylinder (16) is placed in the fourth installation groove (114). The second driving cylinder (16) is fixedly connected to the fourth installation groove (114). The driving motor (12) is placed in the first installation cavity (115). The driving motor (12) is fixedly connected to the first installation cavity (115).

4. An intelligent sealing detection device for the production of safety valves according to claim 3, characterized in that: The pressing device (3) further includes a support plate (31). The support plate (31) is placed in the second installation groove (112). The support plate (31) is slidably connected to the second installation groove (112). The output end of the first driving cylinder (11) is fixedly connected to the support plate (31). The second driving cylinder (16) is fixedly connected to the pressing disc (32). One end of the pressing disc (32) away from the second driving cylinder (16) is fixedly connected to the sealing gasket (33).

5. An intelligent leak detection device for the production of safety valves according to claim 3, characterized in that: The sealing gasket (33) is provided with an air inlet through hole (331) and a detection hole (332). The air inlet through hole (331) and the air inlet hole (322) are located on the same axis. The air inlet through hole (331) is communicated with the air inlet hole (322). There are several detection holes (332). The several detection holes (332) are correspondingly communicated with several installation holes (321). One end of the magnet (3212) away from the installation hole (321) is placed in the detection hole (332).

6. An intelligent sealing detection device for the production of safety valves according to claim 1, characterized in that: The detection device (4) further includes a mounting cylinder (43) and a detection probe plate (44). The multi-stage cylinder (41) is placed inside the air intake through hole (331). The output end of the rotary motor (42) is fixedly connected to the mounting cylinder (43). A pressure sensor (49) is provided on the mounting cylinder (43). The output end of the mounting cylinder (43) is fixedly connected to the detection probe plate (44). There are four detection probe plates (44). A number of detection probes (45) are provided on the detection probe plate (44). One end of the return spring (47) away from the probe mounting groove (451) is fixedly connected to the detection probe (46). The detection probe (46) is slidably connected to the probe mounting groove (451).

7. An intelligent sealing detection device for the production of safety valves according to claim 6, characterized in that: A partition groove (453) is further provided inside the detection probe (45). A marking liquid is contained in the liquid storage cavity (452). The partition groove (453) is placed on the liquid outlet channel (454). The liquid outlet channel (454) penetrates through the partition groove (453). The liquid outlet channel (454) is communicated with the probe mounting groove (451). The partition groove (453) is communicated with the probe mounting groove (451). A partition plate (48) is provided in the partition groove (453). An abutting groove (461) is provided on the detection probe (46). The partition plate (48) abuts against the abutting groove (461). A liquid outlet through hole (481) is provided on the partition plate (48).

8. An intelligent sealing detection device for the production of safety valves according to claim 1, characterized in that: The cleaning device (5) includes a mounting block (51), a suction pump (52), a manipulator (53), a first telescopic cylinder (54), a steering motor (55), a second telescopic cylinder (56) and an adsorption tube (57). The mounting block (51) is threadedly connected to the driving screw (13). The mounting block (51) is slidably connected to the mounting base (1). The mounting block (51) is fixedly connected to the suction pump (52). The suction pump (52) is fixedly connected to the manipulator (53). The manipulator (53) is fixedly connected to the first telescopic cylinder (54). The output end of the first telescopic cylinder (54) is fixedly connected to the steering motor (55). The steering motor (55) is fixedly connected to the second telescopic cylinder (56). The output end of the second telescopic cylinder (56) is fixedly connected to the adsorption tube (57). The input end of the suction pump (52) is in pipeline communication with the adsorption tube (57).

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