A regulating valve adjustable air tightness detection device

Abstract

The present application relates to the field of valve detection, and specifically discloses an adjustable air tightness detection device for a regulating valve, which includes a sealing detection mechanism, a load-bearing base, a first clamping mechanism and a second clamping mechanism. The sealing detection mechanism is used to detect the air tightness of the regulating valve. The first clamping mechanism includes a first frame, a first turntable and a plurality of first pressing assemblies. The first frame is arranged above the load-bearing base and is connected to the load-bearing base. The axis of the first turntable is vertically arranged and rotatably mounted on one end of the first frame away from the load-bearing base. The plurality of first pressing assemblies are distributed along the circumference of the first turntable. The first pressing assembly is used to fix one end of the valve, and the second clamping mechanism is used to fix the other end of the valve. The present application facilitates the sealing detection mechanism to more accurately detect the air tightness of the valve.

Description

Technical Field

[0001] The present application relates to the field of valve detection, and in particular to an adjustable air tightness detection device for a regulating valve. Background Art

[0002] At present, valves are widely used in various fluid control occasions in modern industry, such as petroleum, chemical industry, electric power, etc. In order to ensure the reliability and safety of valves, airtightness testing has become an indispensable part of the valve manufacturing process.

[0003] In the related art, the detection process of the traditional equipment for detecting the air tightness of the valve body is also relatively simple. It only needs to use two clamping mechanisms on the same straight line to clamp the two openings of the valve body respectively and fix them, and then start the equipment for automatic detection.

[0004] The above-mentioned related technologies have the following defects: the above-mentioned detection equipment performs detection in the horizontal direction. In simple terms, it can only detect valves whose openings and inlets are on the same horizontal line. For some valves with mutually vertical joints, the current detection equipment is difficult to effectively fix the valves. Summary of the invention

[0005] In order to effectively fix the valve when performing a tightness test on valves with mutually vertical joints, the present application provides an adjustable air tightness test device for a regulating valve.

[0006] The adjustable air tightness detection device for a regulating valve provided in the present application adopts the following technical solution:

[0007] An adjustable air tightness detection device for a regulating valve comprises a sealing detection mechanism, a first clamping mechanism and a second clamping mechanism, wherein the sealing detection mechanism is used to detect the air tightness of the valve;

[0008] The first clamping mechanism comprises a first frame, a first rotating disk and a plurality of first pressing assemblies distributed along the circumference of the first rotating disk; the first rotating disk is arranged on the first frame; the first pressing assembly comprises a first pressing block, a first sector ring and a plurality of first inner hexagonal outer circular tubes arranged on the first rotating disk; each of the first inner hexagonal outer circular tubes is rotatably connected to the first sector ring, and is also connected to the first sector ring with a first torsion spring; the second clamping mechanism comprises a second frame, a second rotating disk and a plurality of second pressing assemblies distributed along the circumference of the second rotating disk; the second rotating disk is arranged on the second frame and the second rotating disk is perpendicular to the first rotating disk; the second pressing assembly comprises a second pressing block, a second sector ring and a plurality of second inner hexagonal outer circular tubes arranged on the second rotating disk Hexagonal inner tube; each of the second hexagonal inner tube is rotatably connected to the second sector ring, and is also connected to the second sector ring with a second torsion spring; the valve has two mutually perpendicular joints, and a plurality of bolt connection pairs are provided on the circumference of each joint; the first turntable abuts against one of the end faces of the valve joint, and a plurality of the first hexagonal inner tubes are respectively sleeved on the nuts of one of the bolt connection pairs of the valve joint, and the first pressure block is used to press and fix the first sector ring and the valve joint; the second turntable abuts against the end face of the other valve joint, and a plurality of the second hexagonal inner tubes are respectively sleeved on the nuts of one of the bolt connection pairs of the valve joint, and the second pressure block is used to press and fix the second sector ring and the valve joint.

[0009] By adopting the above technical solution, since the valve has two mutually perpendicular joints, a plurality of bolt connection pairs are provided on the circumference of each joint. After the first turntable abuts against the end face of one of the valve joints, the first inner hexagonal outer tube is rotated appropriately, and the first torsion spring is deformed at this time, so that the first inner hexagonal outer tube bears the resetting torque, and then the plurality of first inner hexagonal outer tubes are respectively sleeved on the nuts of a bolt connection pair of the valve joint, so that the nuts of some bolt connection pairs and the plurality of first inner hexagonal outer tubes are mutually limited, and under the action of the resetting torque, the first inner hexagonal outer tube can apply a tightening force to the nut, so that the bolt connection pair is not easy to loosen, and then the first sector ring and the valve joint are mutually limited, and then the first pressure block presses the first sector ring and the valve joint onto the first turntable to achieve the compression and fixation of the first sector ring and the valve joint. After the second rotating disk is in contact with the end face of another valve joint, the second inner hexagonal outer tube is rotated appropriately, and the second torsion spring is deformed at this time, so that the second inner hexagonal outer tube bears the resetting torque, and then multiple second inner hexagonal outer tubes are respectively sleeved on the nuts of a bolt connection pair of the valve joint, so that the nuts of some bolt connection pairs and multiple second inner hexagonal outer tubes are mutually limited, and under the action of the resetting torque, the first inner hexagonal outer tube can apply a tightening force to the nut, so that the bolt connection pair is not easy to loosen, and then the second fan-shaped ring and the valve joint are mutually limited, and then the second pressure block presses the second fan-shaped ring and the valve joint on the second rotating disk to achieve the compression and fixation of the second fan-shaped ring and the valve joint. Then the two mutually perpendicular joints of the valve are limited, and the valve is fixed, and then the sealing detection mechanism is connected to the valve to detect the air tightness of the valve.

[0010] Optionally, the regulating valve adjustable air tightness detection equipment also includes a guide rail, and the first frame is slidably arranged on the guide rail; a slidably connected calibration slider is provided on the guide rail, and a lifting member is installed on the calibration slider; the first frame is located at one end of the guide rail, and the second frame is installed on the lifting member.

[0011] By adopting the above technical solution, when the relative position between the first frame and the second frame needs to be adjusted, the first frame and the alignment slider slide on the guide rail, so as to facilitate the adjustment of the relative position of the first frame and the second frame in the length direction of the guide rail. The lifting member is used to drive the second frame to rise and fall, so as to facilitate the adjustment of the relative position of the first frame and the second frame in the height direction.

[0012] Optionally, the first turntable includes a first rotating shaft, a first support ring, a first pressure sensor, a first sleeve and a first pressure plate, and the first rotating shaft is vertically rotatably mounted on the first frame; the first support ring is fixedly connected to the first rotating shaft, and the first pressure sensor is fixedly connected to the first support ring; the first sleeve is sleeved on the first rotating shaft and slidably cooperates with the rotating shaft, and the first sleeve is abutted against the first pressure sensor; the first pressure plate is fixedly connected to the first sleeve.

[0013] By adopting the above technical solution, when the first pressure block applies pressure to the valve joint, the pressure acts on the first pressure plate and is transmitted to the first pressure sensor through the first sleeve, so that the first pressure sensor can detect whether the pressure is within a reasonable range to ensure the stability of the first pressure block fixing the valve joint.

[0014] Optionally, the first sector ring is also provided with a first arc-shaped groove with a common center; the first arc-shaped groove is provided with a plurality of first positioning slide blocks corresponding to the plurality of first inner hexagonal outer circular tubes; the first inner hexagonal outer circular tube is arranged along the axial direction of the first sector ring and is rotatably connected with the corresponding first positioning slide blocks.

[0015] By adopting the above technical solution, multiple first positioning sliders slide with the first sector ring through the first arc-shaped slide groove, thereby making multiple first inner hexagonal outer tubes slide with the first sector ring. The first inner hexagonal outer tube is rotatably connected to the first positioning slider, so that the first inner hexagonal outer tube can slide with the first sector ring and can also rotate with the first sector ring.

[0016] Optionally, the first positioning slider is provided with a first blind hole, and the bottom of the first blind hole is provided with a first through hole; the first blind hole is provided with a first limiting ring, the first limiting ring rotates and slides with the first positioning slider, and the first end of the first inner hexagonal outer tube is fixedly connected to the first limiting ring; the first torsion spring is sleeved on the first inner hexagonal outer tube, and one end is connected to the second end of the first inner hexagonal outer tube, and the other end is connected to the first positioning slider.

[0017] By adopting the above technical solution, when the multiple first inner hexagonal outer tubes on the first limiting ring are respectively sleeved on the nuts of the multiple bolt connection pairs on the corresponding valve joints, the first inner hexagonal outer tubes that match the angle of the nut can be just sleeved on the nut. The first inner hexagonal outer tube that does not match the angle of the nut will be supported by the nut, and the first inner hexagonal outer tube will be pushed away from the first sector ring. At this time, the first inner hexagonal outer tube is appropriately rotated to correct the relative position of the first inner hexagonal outer tube and the corresponding nut, so that the first inner hexagonal outer tube can be sleeved on the corresponding nut.

[0018] Optionally, a first limiting sliding groove is provided on the first sector ring, one end of the first pressing block is used to be inserted into the first limiting sliding groove, and the other end of the first pressing block is movably connected to the first frame in both the axial and radial directions of the first rotating shaft.

[0019] By adopting the above technical solution, the first sector ring and the first pressing block can be positioned relative to each other, thereby improving the position fixing accuracy of the valve.

[0020] Optionally, the second turntable includes a second rotating shaft, a second support ring, a second pressure sensor, a second sleeve and a second pressure plate, the second rotating shaft being rotatably mounted on the second frame, perpendicular to the first rotating shaft, and also coplanar with the first rotating shaft; the second support ring is fixedly connected to the second rotating shaft, and the second pressure sensor is fixedly connected to the second support ring; the second sleeve is sleeved on the second rotating shaft and slidably cooperates with the rotating shaft, and the second sleeve abuts against the second pressure sensor; the second pressure plate is fixedly connected to the second sleeve.

[0021] By adopting the above technical solution, when the second pressure block applies pressure to the valve joint, the pressure acts on the second pressure plate and is transmitted to the second pressure sensor through the second sleeve, so that the second pressure sensor can detect whether the pressure is within a reasonable range to ensure the stability of the second pressure block fixing the valve joint.

[0022] Optionally, the second sector ring is also provided with a second arc-shaped groove with a common center; the second arc-shaped groove is provided with a plurality of second positioning slide blocks corresponding to the plurality of second inner hexagonal outer circular tubes; the second inner hexagonal outer circular tube is arranged along the axial direction of the second sector ring and is rotatably connected with the corresponding second positioning slide blocks.

[0023] By adopting the above technical solution, multiple second positioning sliders slide with the second sector ring through the second arc-shaped slide groove, thereby making multiple second inner hexagonal outer tubes slide with the second sector ring. The second inner hexagonal outer tube is rotatably connected to the second positioning slider, so that the second inner hexagonal outer tube can slide with the second sector ring and can also rotate with the second sector ring.

[0024] Optionally, the second positioning slider is provided with a second blind hole, and the bottom of the second blind hole is provided with a second through hole; a second limiting ring is provided in the second blind hole, and the second limiting ring rotates and slides with the second positioning slider, and the second end of the second inner hexagonal outer tube is fixedly connected in the second limiting ring; the second torsion spring is sleeved on the second inner hexagonal outer tube, and one end is connected to the second end of the second inner hexagonal outer tube, and the other end is connected to the second positioning slider.

[0025] By adopting the above technical solution, when the multiple second inner hexagonal outer tubes on the second limiting ring are respectively sleeved on the nuts of the multiple bolt connection pairs on the corresponding valve joints, the second inner hexagonal outer tubes that match the angle of the nut can be just sleeved on the nut. The second inner hexagonal outer tube that does not match the angle of the nut will be supported by the nut, and the second inner hexagonal outer tube will be pushed away from the second sector ring. At this time, the second inner hexagonal outer tube is appropriately rotated to correct the relative position of the second inner hexagonal outer tube and the corresponding nut, so that the second inner hexagonal outer tube can be sleeved on the corresponding nut.

[0026] Optionally, a second limiting slide groove is provided on the second sector ring, one end of the second pressure block is used to be inserted into the second limiting slide groove, and the other end of the second pressure block is movably connected to the second frame in both the axial and radial directions of the second rotating shaft.

[0027] By adopting the above technical solution, the second sector ring and the second pressing block can be positioned relative to each other, thereby improving the position fixing accuracy of the valve.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. In the present application, the two mutually perpendicular joints of the valve are clamped respectively by the first clamping mechanism and the second clamping mechanism, so that when the sealing detection mechanism detects the air tightness of the valve, the valve is not easy to move on its own, and the valve can be stably limited, which is conducive to the sealing detection mechanism to more accurately detect the air tightness of the valve.

[0030] 2. In the present application, through the coordinated cooperation between the first turntable, the second turntable, multiple first holding components and multiple second holding components, the two mutually perpendicular joint positions of the valve can be accurately defined, and the bolt connection pair on the valve joint can be limited, so that the valve joint is not easy to loosen by itself, which is beneficial to the precise fixation of the valve and the air tightness detection.

[0031] 3. In the present application, when the first pressure block applies pressure to the valve joint, the pressure acts on the first pressure plate and is transmitted to the first pressure sensor through the first sleeve, so that the first pressure sensor can detect whether the pressure is within a reasonable range to ensure the stability of the first pressure block fixing the valve joint.

[0032] 4. In the present application, when the second pressure block applies pressure to the valve joint, the pressure acts on the second pressure plate and is transmitted to the second pressure sensor through the second sleeve, so that the second pressure sensor can detect whether the pressure is within a reasonable range to ensure the stability of the second pressure block fixing the valve joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0035] Figure 2 It is a structural diagram of the sealing detection mechanism when detecting the air tightness of the valve;

[0036] Figure 3 It is a schematic diagram of the combined structure of a part of the first clamping mechanism and a part of the second clamping mechanism clamping the valve;

[0037] Figure 4 It is a schematic diagram of the overall structure of the first clamping mechanism and the second clamping mechanism after removing part of the first frame and part of the second frame respectively.

[0038] Reference numerals:

[0039] 1. Valve; 11. First joint; 111. First connecting flange; 112. First sealing flange; 113. First bolt connection pair; 12. Second joint; 121. Second connecting flange; 122. Second sealing flange; 123. Second bolt connection pair; 13. Third joint; 131. Third connecting flange; 132. Third sealing flange; 133. Third bolt connection pair; 2. Sealing detection mechanism; 21. First ventilation pipe; 22. Sealing box; 23. Barometer; 24. Second ventilation pipe; 25. Sealing valve; 26. Air pump; 3. Load-bearing base; 31. Guide rail; 32. Calibration slider; 33. lifting member; 4. first clamping mechanism; 41. first frame; 42. first rotating disk; 421. first rotating shaft; 422. first supporting ring; 423. first pressure sensor; 424. first pressure plate; 425. first sleeve; 42501. first long hole; 426. first limiting bolt; 43. first pressing assembly; 431. first pressing block; 432. first sector ring; 43201. first arc-shaped slide groove; 43202. first limiting slide groove; 433. first positioning slider; 43301. first blind hole; 43302. first through hole; 434. first inner hexagonal outer round tube; 434 1. First limiting ring; 435. First torsion spring; 436. First telescopic member; 437. First slider; 438. First slide rail; 439. First screw rod; 44. First driving assembly; 441. First driven gear; 442. First transmission gear ring; 443. First driving gear; 444. First motor; 5. Second clamping mechanism; 51. Second frame; 52. Second rotating disk; 521. Second rotating shaft; 522. Second supporting ring; 523. Second pressure sensor; 524. Second pressure plate; 525. Second sleeve; 52501. Second long hole; 526. Second limiting bolt; 53. The second pressing component; 531, the second pressing block; 532, the second fan-shaped ring; 53201, the second arc-shaped slide groove; 53202, the second limiting slide groove; 533, the second positioning slider; 53301, the second blind hole; 53302, the second through hole; 534, the second inner hexagonal outer tube; 5341, the second limiting ring; 535, the second torsion spring; 536, the second telescopic member; 537, the second slider; 538, the second slide rail; 539, the second screw rod; 54, the second driving component; 541, the second driven gear; 542, the second transmission gear ring; 543, the second driving gear; 544, the second motor. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-4 This application is described in further detail.

[0041] The embodiment of the present application discloses an adjustable air tightness detection device for a regulating valve.

[0042] Reference Figure 1 and Figure 2 A regulating valve adjustable air tightness detection device includes a sealing detection mechanism 2, a load-bearing base 3, a first clamping mechanism 4 and a second clamping mechanism 5. The sealing detection mechanism 2 is used to detect the air tightness of the valve 1, and the first clamping mechanism 4 and the second clamping mechanism 5 are integrated on the load-bearing base 3.

[0043] Reference Figure 1 and Figure 2 In the present application, the valve 1 used for air tightness detection has a first joint 11, a second joint 12 and a plurality of third joints 13, wherein the first joint 11 and the second joint 12 are perpendicular to each other. The first joint 11 includes a first connection flange 111, a first sealing flange 112 and a plurality of first bolt connection pairs 113, the first connection flange 111 is fixedly connected to the valve body of the valve 1, the first sealing flange 112 is coaxially arranged on the first connection flange 111, and the plurality of first bolt connection pairs 113 are evenly spaced along the circumference of the first connection flange 111, and are used to connect the first connection flange 111 and the first sealing flange 112 together. The second joint 12 includes a second connection flange 121, a second sealing flange 122 and a plurality of second bolt connection pairs 123, the second connection flange 121 is fixedly connected to the valve body of the valve 1, the second sealing flange 122 is coaxially arranged on the second connection flange 121, and the plurality of second bolt connection pairs 123 are evenly spaced along the circumference of the second connection flange 121, and are used to connect the second connection flange 121 and the second sealing flange 122 together. The third joint 13 includes a third connecting flange 131, a third sealing flange 132 and a plurality of third bolt connection pairs 133. The third connecting flange 131 is fixedly connected to the valve body of the valve 1. The third sealing flange 132 is coaxially arranged on the third connecting flange 131. The plurality of third bolt connection pairs 133 are evenly spaced along the circumference of the third connecting flange 131, and are used to connect the third connecting flange 131 and the third sealing flange 132 together.

[0044] Reference Figure 1 and Figure 2 The sealing detection mechanism 2 includes a first ventilation pipe 21, a sealing box 22, a barometer 23, a second ventilation pipe 24, a sealing valve 25 and an air pump 26. The third sealing flange 132, the first ventilation pipe 21, the sealing box 22, the second ventilation pipe 24, the sealing valve 25 and the air pump 26 are connected in sequence, and the barometer 23 is installed on the sealing box 22. When detecting the air tightness of the valve 1, the air pump 26 injects a proper amount of gas into the inside of the valve 1 to increase the air pressure inside the valve 1. After closing the sealing valve 25, since the valve 1 and the sealing box 22 are connected through the first ventilation pipe 21, the barometer 23 detects the air pressure inside the sealing box 22, that is, the air pressure inside the valve 1. During the detection time, if the air pressure value remains unchanged, it means that the air tightness of the valve 1 is qualified. If the air pressure value decreases, it means that the valve 1 is unqualified.

[0045] Reference Figure 3 and Figure 4 , the first clamping mechanism 4 includes a first frame 41, a first rotating disk 42 and a plurality of first pressing assemblies 43 distributed along the circumference of the first rotating disk 42. The first rotating disk 42 is arranged on the first frame 41. The first pressing assembly 43 includes a first pressing block 431, a first sector ring 432 and a plurality of first inner hexagonal outer circular tubes 434 arranged on the first rotating disk 42. Each first inner hexagonal outer circular tube 434 is rotatably connected to the first sector ring 432, and is also connected to the first sector ring 432 with a first torsion spring 435. The second clamping mechanism 5 includes a second frame 51, a second rotating disk 52 and a plurality of second pressing assemblies 53 distributed along the circumference of the second rotating disk 52. The second rotating disk 52 is arranged on the second frame 51 and is perpendicular to the first rotating disk 42. The second pressing assembly 53 includes a second pressing block 531, a second sector ring 532 and a plurality of second inner hexagonal outer circular tubes 534 arranged on the second rotating disk 52. Each second inner hexagonal outer tube 534 is rotatably connected to the second sector ring 532 , and is also connected to the second sector ring 532 via a second torsion spring 535 .

[0046] Reference Figure 3 and Figure 4 The first rotating disk 42 is in contact with the end surface of the first joint 11, and the plurality of first inner hexagonal outer tubes 434 are respectively sleeved on the nuts of the first bolt connection pair 113, and the first pressing block 431 is used to press and fix the first sector ring 432 and the first joint 11. The second rotating disk 52 is in contact with the end surface of the second joint 12, and the plurality of second inner hexagonal outer tubes 534 are respectively sleeved on the nuts of the second bolt connection pair 123, and the second pressing block 531 is used to press and fix the second sector ring 532 and the second joint 12.

[0047] Reference Figure 3 and Figure 4After the first turntable 42 abuts against the end surface of the first joint 11, the first inner hexagonal outer tube 434 is rotated appropriately, and the first torsion spring 435 is deformed at this time, so that the first inner hexagonal outer tube 434 is subjected to the resetting torque, and then each first inner hexagonal outer tube 434 is sleeved on a nut of a first bolt connection pair 113, so that the nuts of some first bolt connection pairs 113 and a plurality of first inner hexagonal outer tubes 434 are mutually limited, and under the action of the resetting torque of the first inner hexagonal outer tube 434, the first bolt connection pair 113 can be retracted. The nut of the bolt connection pair 113 applies a tightening force to prevent the first bolt connection pair 113 from loosening, thereby making the first joint 11 have better sealing performance, and thereby limiting the first sector ring 432 and the first joint 11 to each other, and then the first pressing block 431 presses the first sector ring 432 and the first joint 11 onto the first turntable 42 to achieve compression and fixation of the first sector ring 432 and the first joint 11, and after the first sector ring 432 is installed in place, it can be exactly cocentric with the first joint 11. After the second rotating disk 52 abuts against the end surface of the second joint 12, the second inner hexagonal outer tube 534 is rotated appropriately, at which time the second torsion spring 535 is deformed, so that the second inner hexagonal outer tube 534 is subjected to the resetting torque, and then each second inner hexagonal outer tube 534 is sleeved on a nut of a second bolt connection pair 123, so that the nuts of some second bolt connection pairs 123 and a plurality of second inner hexagonal outer tubes 534 are mutually limited, and under the action of the resetting torque of the second inner hexagonal outer tube 534, the second bolt connection pair 123 can be retracted. The nut of the bolt connection pair 123 applies a tightening force, so that the second bolt connection pair 123 is not easy to loosen, so that the second joint 12 has better sealing performance, so that the second sector ring 532 and the second joint 12 are mutually limited, and then the second pressing block 531 presses the second sector ring 532 and the second joint 12 on the second rotating disk 52 to achieve the compression and fixation of the second sector ring 532 and the second joint 12, and the second sector ring 532 can be exactly co-centered with the second joint 12 after being installed in place. Then the two mutually perpendicular joints of the valve 1 are both limited, and the valve 1 is fixed, and then the sealing detection mechanism 2 is connected to the valve 1 to detect the air tightness of the valve 1.

[0048] Reference Figure 3 and Figure 4, the regulating valve adjustable air tightness detection equipment also includes a guide rail 31 installed on the load-bearing base 3, and the first frame 41 is slidably arranged on the guide rail 31. A slidably connected calibration slider 32 is provided on the guide rail 31, and a lifting member 33 is installed on the calibration slider 32. The first frame 41 is located at one end of the guide rail 31, and the second frame 51 is installed on the lifting member 33. In the embodiment of the present application, when it is necessary to adjust the relative position between the first frame 41 and the second frame 51, the first frame 41 and the calibration slider 32 are slid on the guide rail 31, so as to facilitate the adjustment of the relative position of the first frame 41 and the second frame 51 in the length direction of the guide rail 31. The lifting member 33 is used to drive the second frame 51 to rise and fall, so as to facilitate the adjustment of the relative position of the first frame 41 and the second frame 51 in the height direction.

[0049] Reference Figure 3 and Figure 4 The first rotating disk 42 includes a first rotating shaft 421, a first supporting ring 422, a first pressure sensor 423, a first sleeve 425 and a first pressure plate 424. The first rotating shaft 421 is vertically rotatably mounted on the first frame 41. The first supporting ring 422 is fixedly connected to the first rotating shaft 421, and the first pressure sensor 423 is fixedly connected to the first supporting ring 422. The first sleeve 425 is sleeved on the first rotating shaft 421 and slidably cooperates with the rotating shaft, and the first sleeve 425 abuts against the first pressure sensor 423. The first pressure plate 424 is fixedly connected to the first sleeve 425. In the embodiment of the present application, when the first pressure block 431 applies pressure to the valve 1 joint, the pressure acts on the first pressure plate 424 and is transmitted to the first pressure sensor 423 through the first sleeve 425, so that the first pressure sensor 423 can detect whether the pressure is within a reasonable range to ensure the stability of the first pressure block 431 fixing the valve 1 joint.

[0050] Reference Figure 3 and Figure 4 , the first sector ring 432 is also provided with a first arc-shaped slide groove 43201 with a common center. The first arc-shaped slide groove 43201 is provided with a plurality of first positioning sliders 433 corresponding to the plurality of first inner hexagonal outer circular tubes 434. The first inner hexagonal outer circular tube 434 is arranged along the axial direction of the first sector ring 432, and is rotatably connected with the corresponding first positioning slider 433. In the embodiment of the present application, the first inner hexagonal outer circular tube 434 is rotatably connected with the corresponding first positioning slider 433, so that the first inner hexagonal outer circular tube 434 can not only slide with the first sector ring 432, but also rotatably cooperate with the first sector ring 432.

[0051] Reference Figure 3 and Figure 4The first positioning slider 433 is provided with a first blind hole 43301, and the bottom of the first blind hole 43301 is provided with a first through hole 43302. A first limiting ring 4341 is provided in the first blind hole 43301, and the first limiting ring 4341 is rotatably and slidably matched with the first positioning slider 433, and the first end of the first inner hexagonal outer tube 434 is fixedly connected to the first limiting ring 4341. The first torsion spring 435 is sleeved on the first inner hexagonal outer tube 434, and one end is connected to the second end of the first inner hexagonal outer tube 434, and the other end is connected to the first positioning slider 433.

[0052] Reference Figure 3 and Figure 4 In the embodiment of the present application, when each first inner hexagonal outer tube 434 on the first limiting ring 4341 is respectively sleeved on a nut of a first bolt connection pair 113, the first inner hexagonal outer tube 434 matching the angle of the nut can be just sleeved on the nut. The first inner hexagonal outer tube 434 that does not match the angle of the nut will be supported by the nut, and the first inner hexagonal outer tube 434 is pushed away from the first sector ring 432. At this time, the first inner hexagonal outer tube 434 is appropriately rotated to correct the relative position of the first inner hexagonal outer tube 434 and the corresponding nut, so that the first inner hexagonal outer tube 434 can be sleeved on the nut.

[0053] Reference Figure 3 and Figure 4 The first sector ring 432 is provided with a first limiting slide groove 43202 arranged along the circumference of the first sector ring 432, and one end of the first pressing block 431 is used to be inserted into the first limiting slide groove 43202, and can slide in the length direction of the first limiting slide groove 43202. The other end of the first pressing block 431 is movably connected to the first frame 41 in both the axial direction and the radial direction of the first rotating shaft 421. In the embodiment of the present application, the first sector ring 432 and the first pressing block 431 can be positioned with each other, thereby improving the position fixing accuracy of the valve 1.

[0054] Reference Figure 3 and Figure 4The second rotating disk 52 includes a second rotating shaft 521, a second supporting ring 522, a second pressure sensor 523, a second sleeve 525 and a second pressure plate 524. The second rotating shaft 521 is rotatably mounted on the second frame 51, and is perpendicular to the first rotating shaft 421 and coplanar with the first rotating shaft 421. The second supporting ring 522 is fixedly connected to the second rotating shaft 521, and the second pressure sensor 523 is fixedly connected to the second supporting ring 522. The second sleeve 525 is sleeved on the second rotating shaft 521 and slidably cooperates with the rotating shaft, and the second sleeve 525 abuts against the second pressure sensor 523. The second pressure plate 524 is fixedly connected to the second sleeve 525. In the embodiment of the present application, when the second pressure block 531 applies pressure to the valve 1 connector, the pressure acts on the second pressure plate 524 and is transmitted to the second pressure sensor 523 through the second sleeve 525, so that the second pressure sensor 523 can detect whether the pressure is within a reasonable range, so as to ensure the stability of the second pressure block 531 fixing the valve 1 connector.

[0055] Reference Figure 3 and Figure 4 , the second sector ring 532 is also provided with a co-centric second arc chute 53201. The second arc chute 53201 is provided with a plurality of second positioning sliders 533 corresponding to the plurality of second inner hexagonal outer circular tubes 534. The second inner hexagonal outer circular tubes 534 are arranged along the axial direction of the second sector ring 532 and are rotatably connected to the corresponding second positioning sliders 533. In the embodiment of the present application, the second inner hexagonal outer circular tube 534 is rotatably connected to the corresponding second positioning slider 533, so that the second inner hexagonal outer circular tube 534 can not only slide with the second sector ring 532, but also rotatably cooperate with the second sector ring 532.

[0056] Reference Figure 3 and Figure 4 The second positioning slider 533 is provided with a second blind hole 53301, and the bottom of the second blind hole 53301 is provided with a second through hole 53302. A second limiting ring 5341 is provided in the second blind hole 53301, and the second limiting ring 5341 is rotationally and slidably matched with the second positioning slider 533, and the second end of the second inner hexagonal outer tube 534 is fixedly connected to the second limiting ring 5341. The second torsion spring 535 is sleeved on the second inner hexagonal outer tube 534, and one end is connected to the second end of the second inner hexagonal outer tube 534, and the other end is connected to the second positioning slider 533.

[0057] Reference Figure 3 and Figure 4In the embodiment of the present application, when each second inner hexagonal outer tube 534 on the second limiting ring 5341 is respectively sleeved on a nut of a second bolt connection pair 123, the second inner hexagonal outer tube 534 matching the angle of the nut can be just sleeved on the nut. The second inner hexagonal outer tube 534 that does not match the angle of the nut will be supported by the nut, and the second inner hexagonal outer tube 534 is pushed away from the second sector ring 532. At this time, the second inner hexagonal outer tube 534 is properly rotated to correct the relative position of the second inner hexagonal outer tube 534 and the corresponding nut, so that the second inner hexagonal outer tube 534 can be sleeved on the nut.

[0058] Reference Figure 3 and Figure 4 The second sector ring 532 is provided with a second limiting slide groove 53202 arranged along the circumference of the second sector ring 532, and one end of the second pressing block 531 is used to be inserted into the second limiting slide groove 53202, and can slide in the length direction of the second limiting slide groove 53202. The other end of the second pressing block 531 is movably connected to the second frame 51 in both the axial direction and the radial direction of the second rotating shaft 521. In the embodiment of the present application, the second sector ring 532 and the second pressing block 531 can be positioned with each other, thereby improving the position fixing accuracy of the valve 1.

[0059] Reference Figure 3 and Figure 4 The side wall of the first sleeve 425 is provided with a first long hole 42501 arranged along the length direction of the first sleeve 425, and a first limiting bolt 426 arranged along the radius direction of the first sleeve 425 is arranged in the first long hole 42501, and the first limiting bolt 426 is screwed with the first rotating shaft 421. In the embodiment of the present application, the first long hole 42501 and the first limiting bolt 426 cooperate to limit the sliding range of the first sleeve 425 on the first rotating shaft 421, so that the first sleeve 425 is not easily separated from the first rotating shaft 421. At the same time, the first pressure sensor 423 can effectively detect the pressure on the first sleeve 425, that is, the first pressure plate 424.

[0060] Reference Figure 3 and Figure 4The first pressing assembly 43 also includes a first telescopic member 436, a first adjusting slider, a first slide rail 438 and a first screw rod 439. The first slide rail 438 is installed on the first frame 41 along the radial direction of the first rotating shaft 421. The first adjusting slider is slidably connected to the first slide rail 438. The first telescopic member 436 is arranged along the axial direction of the first rotating shaft 421, and one end is connected to the first adjusting slider, and the other end is connected to the end of the first pressing block 431 away from the first rotating shaft 421. The first screw rod 439 is arranged along the length direction of the first slide rail 438, is rotatably connected to the first frame 41, and is screwed to the first adjusting slider. In the embodiment of the present application, the first screw rod 439 rotates to drive the first adjusting slider to slide on the first slide rail 438, thereby moving the first pressing block 431 in the radial direction of the first rotating shaft 421. The first telescopic member 436 is used to drive the first pressing block 431 to move in the axial direction of the first rotating shaft 421.

[0061] Reference Figure 3 and Figure 4 The first clamping mechanism 4 further includes a first driving assembly 44, which includes a first transmission gear ring 442, a first driving gear 443, a first motor 444 and a plurality of first driven gears 441. The plurality of first driven gears 441 are arranged corresponding to the plurality of first pressing assemblies 43, and the first driven gears 441 are coaxially mounted on the corresponding first screw rods 439. The first transmission gear ring 442 is coaxial with the first rotating shaft 421, and is rotatably connected to the first frame 41, and is also meshed with the plurality of first driven gears 441. The first driving gear 443 is meshed with the first transmission gear ring 442. The first motor 444 is mounted on the first frame 41 and is connected to the first driving gear 443. In the embodiment of the present application, the first motor 444 drives the first transmission gear ring 442 to rotate via the first driving gear 443. The first transmission gear ring 442 can drive the multiple first driven gears 441 to rotate synchronously, thereby causing the multiple first screw rods 439 to rotate synchronously, so as to achieve the multiple first pressure blocks 431 to synchronously approach or move away from the first rotating shaft 421.

[0062] Reference Figure 3 and Figure 4 The side wall of the second sleeve 525 is provided with a second long hole 52501 arranged along the length direction of the second sleeve 525, and a second limiting bolt 526 arranged along the radius direction of the second sleeve 525 is arranged in the second long hole 52501, and the second limiting bolt 526 is screwed with the second rotating shaft 521. In the embodiment of the present application, the second long hole 52501 and the second limiting bolt 526 cooperate to limit the sliding range of the second sleeve 525 on the second rotating shaft 521, so that the second sleeve 525 is not easy to separate from the second rotating shaft 521. At the same time, the second pressure sensor 523 can effectively detect the pressure on the second sleeve 525, that is, the second pressure plate 524.

[0063] Reference Figure 3 and Figure 4 The second pressing assembly 53 also includes a second telescopic member 536, a second adjusting slider, a second slide rail 538 and a second screw rod 539. The second slide rail 538 is installed on the second frame 51 along the radial direction of the second rotating shaft 521. The second adjusting slider is slidably connected to the second slide rail 538. The second telescopic member 536 is arranged along the axial direction of the second rotating shaft 521, and one end is connected to the second adjusting slider, and the other end is connected to the end of the second pressing block 531 away from the second rotating shaft 521. The second screw rod 539 is arranged along the length direction of the second slide rail 538, is rotatably connected to the second frame 51, and is screwed to the second adjusting slider. In the embodiment of the present application, the second screw rod 539 rotates to drive the second adjusting slider to slide on the second slide rail 538, thereby moving the second pressing block 531 in the radial direction of the second rotating shaft 521. The second telescopic member 536 is used to drive the second pressing block 531 to move in the axial direction of the second rotating shaft 521.

[0064] Reference Figure 3 and Figure 4 The second clamping mechanism 5 further includes a second driving assembly 54, which includes a second transmission gear ring 542, a second driving gear 543, a second motor 544 and a plurality of second driven gears 541. The plurality of second driven gears 541 are arranged corresponding to the plurality of second pressing assemblies 53, and the second driven gears 541 are coaxially mounted on the corresponding second screw rods 539. The second transmission gear ring 542 is coaxial with the second rotating shaft 521, and is rotatably connected to the second frame 51, and is also meshed with the plurality of second driven gears 541. The second driving gear 543 is meshed with the second transmission gear ring 542. The second motor 544 is mounted on the second frame 51 and is connected to the second driving gear 543. In the embodiment of the present application, the second motor 544 drives the second transmission gear ring 542 to rotate via the second driving gear 543. The second transmission gear ring 542 can drive the multiple second driven gears 541 to rotate synchronously, thereby causing the multiple second screw rods 539 to rotate synchronously, so as to achieve the multiple second pressure blocks 531 to synchronously approach or move away from the second rotating shaft 521.

[0065] The implementation principle of the adjustable air tightness detection device for a regulating valve in the embodiment of the present application is as follows:

[0066] After the first rotating disk 42 abuts against the end surface of the first joint 11, the first inner hexagonal outer tube 434 is rotated appropriately. At this time, the first torsion spring 435 is deformed, so that the first inner hexagonal outer tube 434 is subjected to the resetting torque. Then, each first inner hexagonal outer tube 434 is sleeved on a nut of a first bolt connection pair 113, so that the nuts of some first bolt connection pairs 113 and multiple first inner hexagonal outer tubes 434 are mutually limited. Moreover, under the action of the resetting torque, the first inner hexagonal outer tube 434 can apply a tightening force to the nut of the first bolt connection pair 113, so that the first bolt connection pair 113 is not easy to loosen, thereby making the first joint 11 have better sealing performance, thereby making the first sector ring 432 and the first joint 11 mutually limited. Then, the first pressing block 431 presses the first sector ring 432 and the first joint 11 on the first rotating disk 42 to achieve the pressing and fixing of the first sector ring 432 and the first joint 11. After the second rotating disk 52 abuts against the end surface of the second joint 12, the second inner hexagonal outer tube 534 is rotated appropriately. At this time, the second torsion spring 535 is deformed, so that the second inner hexagonal outer tube 534 is subjected to the resetting torque. Then, each second inner hexagonal outer tube 534 is sleeved on the nut of a second bolt connection pair 123, so that the nuts of some second bolt connection pairs 123 and multiple second inner hexagonal outer tubes 534 are mutually limited. Moreover, under the action of the resetting torque, the second inner hexagonal outer tube 534 can apply a tightening force to the nut of the second bolt connection pair 123, so that the second bolt connection pair 123 is not easy to loosen, thereby making the second joint 12 have better sealing performance, thereby making the second sector ring 532 and the second joint 12 mutually limited. Then, the second pressing block 531 presses the second sector ring 532 and the second joint 12 on the second rotating disk 52, thereby realizing the pressing and fixing of the second sector ring 532 and the second joint 12. Then the two mutually perpendicular joints of the valve 1 are limited to fix the valve 1, and then the sealing detection mechanism 2 is connected to the valve 1 to detect the air tightness of the valve 1.

[0067] When testing the air tightness of valve 1, air pump 26 injects a proper amount of gas into valve 1 and then closes sealing valve 25. At this time, valve 1 and sealing box 22 are connected via first ventilation pipe 21 to form an independent sealed space. Barometer 23 detects the air pressure inside sealing box 22, that is, the air pressure inside valve 1. If the air pressure is constant within the testing time, it indicates that the air tightness of valve 1 is qualified. If the value detected by barometer 23 decreases, it indicates that valve 1 is unqualified.

[0068] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0069] The above are all optional embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An adjustable air tightness detection device for a regulating valve, characterized in that: It comprises a sealing detection mechanism (2), a first clamping mechanism (4) and a second clamping mechanism (5), wherein the sealing detection mechanism (2) is used to detect the air tightness of the valve (1); The first clamping mechanism (4) comprises a first frame (41), a first rotating disk (42) and a plurality of first pressing assemblies (43) distributed along the circumference of the first rotating disk (42); the first rotating disk (42) is arranged on the first frame (41); the first pressing assembly (43) comprises a first pressing block (431), a first sector ring (432) and a plurality of first inner hexagonal outer circular tubes (434) arranged on the first rotating disk (42); each of the first inner hexagonal outer circular tubes (434) is rotatably connected to the first sector ring (432), and each of the first inner hexagonal outer circular tubes (434) is also connected to the first sector ring (432) by a first torsion spring (435); The second clamping mechanism (5) comprises a second frame (51), a second rotating disk (52) and a plurality of second pressing assemblies (53) distributed along the circumference of the second rotating disk (52); the second rotating disk (52) is arranged on the second frame (51) and the second rotating disk (52) is perpendicular to the first rotating disk (42); the second pressing assembly (53) comprises a second pressing block (531) arranged on the second rotating disk (52), a second sector ring (532) and a plurality of second inner hexagonal outer circular tubes (534); each of the second inner hexagonal outer circular tubes (534) is rotatably connected to the second sector ring (532) and is also connected to the second sector ring (532) by a second torsion spring (535); The valve (1) has two mutually perpendicular joints and a plurality of bolt connection pairs arranged in the circumferential direction of the joints; the first rotating disk (42) is in contact with the end face of one of the joints of the valve (1); the plurality of the first inner hexagonal outer circular tubes (434) are respectively sleeved on the nuts of one of the bolt connection pairs of the joint of the valve (1); the first pressing block (431) is used to press and fix the first sector ring (432) and the joint of the valve (1); the second rotating disk (52) is in contact with the end face of another of the joints of the valve (1); the plurality of the second inner hexagonal outer circular tubes (534) are respectively sleeved on the nuts of one of the bolt connection pairs of the joint of the valve (1); the second pressing block (531) is used to press and fix the second sector ring (532) and the joint of the valve (1).

2. The adjustable air tightness detection device for a regulating valve according to claim 1 is characterized in that: The regulating valve adjustable air tightness detection device further comprises a guide rail (31), the first frame (41) being slidably disposed on the guide rail (31); a slidably connected positioning slider (32) is disposed on the guide rail (31), and a lifting member (33) is mounted on the positioning slider (32); the first frame (41) is located at one end of the guide rail (31), and the second frame (51) is mounted on the lifting member (33).

3. The adjustable air tightness detection device for a regulating valve according to claim 1 is characterized in that: The first rotating disk (42) comprises a first rotating shaft (421), a first supporting ring (422), a first pressure sensor (423), a first sleeve (425) and a first pressure plate (424); the first rotating shaft (421) is vertically rotatably mounted on the first frame (41); The first support ring (422) is fixedly connected to the first rotating shaft (421), and the first pressure sensor (423) is fixedly connected to the first support ring (422); the first sleeve (425) is sleeved on the first rotating shaft (421) and slidably cooperates with the rotating shaft, and the first sleeve (425) abuts against the first pressure sensor (423); the first pressure plate (424) is fixedly connected to the first sleeve (425).

4. The adjustable air tightness detection device for a regulating valve according to claim 3 is characterized in that: The first sector ring (432) is also provided with a first arc-shaped slide groove (43201) with a common center; a plurality of first positioning slide blocks (433) are provided in the first arc-shaped slide groove (43201) and are arranged corresponding to the plurality of first inner hexagonal outer circular tubes (434); the first inner hexagonal outer circular tubes (434) are arranged along the axial direction of the first sector ring (432) and are rotatably connected to the corresponding first positioning slide blocks (433).

5. The adjustable air tightness detection device for a regulating valve according to claim 4 is characterized in that: The first positioning slider (433) is provided with a first blind hole (43301) along the first blind hole (43301), and the bottom of the first blind hole (43301) is provided with a first through hole (43302); a first limiting ring (4341) is provided in the first blind hole (43301), and the first limiting ring (4341) and the first positioning slider (433) are rotatably and slidably matched, and the first end of the first inner hexagonal outer circular tube (434) is fixedly connected in the first limiting ring (4341); the first torsion spring (435) is sleeved on the first inner hexagonal outer circular tube (434), and one end is connected to the second end of the first inner hexagonal outer circular tube (434), and the other end is connected to the first positioning slider (433).

6. The adjustable air tightness detection device for a regulating valve according to claim 5, characterized in that: A first limiting sliding groove (43202) is provided on the first sector ring (432), one end of the first pressing block (431) is used to be inserted into the first limiting sliding groove (43202), and the other end of the first pressing block (431) is movably connected to the first frame (41) in both the axial and radial directions of the first rotating shaft (421).

7. The adjustable air tightness detection device for a regulating valve according to claim 3 is characterized in that: The second rotating disk (52) comprises a second rotating shaft (521), a second supporting ring (522), a second pressure sensor (523), a second sleeve (525) and a second pressure plate (524); the second rotating shaft (521) is rotatably mounted on the second frame (51), is perpendicular to the first rotating shaft (421), and is also coplanar with the first rotating shaft (421); the second supporting ring (522) is fixedly connected to the second rotating shaft (521), and the second pressure sensor (523) is fixedly connected to the second supporting ring (522); the second sleeve (525) is sleeved on the second rotating shaft (521) and is slidably matched with the rotating shaft, and the second sleeve (525) is in contact with the second pressure sensor (523); the second pressure plate (524) is fixedly connected to the second sleeve (525).

8. The adjustable air tightness detection device for a regulating valve according to claim 7 is characterized in that: The second sector ring (532) is also provided with a co-centric second arc-shaped slide groove (53201); a plurality of second positioning slide blocks (533) corresponding to the plurality of second inner hexagonal outer circular tubes (534) are provided in the second arc-shaped slide groove (53201); the second inner hexagonal outer circular tubes (534) are arranged along the axial direction of the second sector ring (532) and are rotatably connected to the corresponding second positioning slide blocks (533).

9. The adjustable air tightness detection device for a regulating valve according to claim 8, characterized in that: The second positioning slider (533) is provided with a second blind hole (53301), and the bottom of the second blind hole (53301) is provided with a second through hole (53302); the second blind hole (53301) is provided with a second limiting ring (5341), the second limiting ring (5341) and the second positioning slider (533) are rotatably and slidably matched, and the second end of the second inner hexagonal outer circular tube (534) is fixedly connected to the second limiting ring (5341); the second torsion spring (535) is sleeved on the second inner hexagonal outer circular tube (534), and one end is connected to the second end of the second inner hexagonal outer circular tube (534), and the other end is connected to the second positioning slider (533).

10. The adjustable air tightness detection device for a regulating valve according to claim 9, characterized in that: The second sector ring (532) is provided with a second limiting sliding groove (53202), one end of the second pressing block (531) is used to be inserted into the second limiting sliding groove (53202), and the other end of the second pressing block (531) is movably connected to the second frame (51) in both the axial and radial directions of the second rotating shaft (521).

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