An intelligent calibration platform for safety valves

Abstract

The present invention discloses an intelligent calibration platform for safety valves, belonging to the field of safety valve calibration. An intelligent calibration platform for safety valves includes a calibration table and a valve body, and further includes: a fixing mechanism arranged on the calibration table for fixing the valve body, a calibration pipe connected to the calibration table and communicating with the fixing mechanism, and the valve body is communicated with the calibration pipe through the fixing mechanism; a support plate and a fixed rotating shaft arranged on the calibration table, the bottom end of the fixed rotating shaft is fixedly connected with a driven gear meshing with part of the structure of the fixing mechanism, the top end of the fixed rotating shaft is rotatably connected with a movable rotating shaft, wherein a positioning energy storage component is arranged between the fixed rotating shaft and the movable rotating shaft, and a calibration mechanism is arranged between the support plate and the movable rotating shaft. According to the calibration pressure, the rotation direction of the calibration mechanism can be adjusted to adjust the opening pressure of the valve body; the present invention can overcome the problems of cumbersome calibration operation, low calibration efficiency, low intelligent level, and low calibration accuracy of safety valves.

Description

Technical Field

[0001] The present invention relates to the technical field of safety valve calibration, and particularly to an intelligent calibration platform for safety valves. Background Art

[0002] A safety valve is a closing member that is normally closed under the action of an external force. When the medium pressure in a device or pipeline rises above a specified value, it is a special valve that prevents the medium pressure in the pipeline or device from exceeding the specified value by discharging the medium to the outside of the system, and plays an important protective role in personal safety and equipment operation.

[0003] A safety valve usually needs to be pressure-calibrated before it can be used. Otherwise, it will affect the safety of the use of the device or pipeline. Specifically, generally, the safety valve is removed from the device or pipeline and comprehensively detected and adjusted on a special calibration platform. A calibration medium is used to open the safety valve, and the opening pressure of the safety valve is confirmed by observing a pressure sensor.

[0004] Currently, when calibrating a safety valve, it is usually fixed on a calibration platform through bolts or the like, which is cumbersome to operate and affects the calibration efficiency of the safety valve. And during the calibration process, generally, manual operation is required to change the spring pre-tightening compression amount by rotating an adjustment knob to adjust the opening pressure. Not only is the degree of intelligence low, but also it is difficult to achieve the purpose of accurate calibration when adjusting the opening pressure, resulting in a low calibration accuracy of the safety valve. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the prior art that the calibration operation of the safety valve is cumbersome, the calibration efficiency is low, the degree of intelligence is low, and the calibration accuracy is low, and to propose an intelligent calibration platform for safety valves.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An intelligent calibration platform for safety valves, including a calibration platform and a valve body, further including: a fixing mechanism arranged on the calibration platform for fixing the valve body, a calibration pipe connected to the calibration platform and communicating with the fixing mechanism, and the valve body is communicated with the calibration pipe through the fixing mechanism; a support plate and a fixed rotating shaft arranged on the calibration platform, the bottom end of the fixed rotating shaft is fixedly connected with a driven gear meshing with a part of the structure of the fixing mechanism, the top end of the fixed rotating shaft is rotatably connected with a movable rotating shaft. Among them, a positioning energy storage component is arranged between the fixed rotating shaft and the movable rotating shaft, and a calibration mechanism is arranged between the support plate and the movable rotating shaft, and the rotation direction of the calibration mechanism can be adjusted according to the calibration pressure for adjusting the opening pressure of the valve body.

[0008] To facilitate the placement of the valve body and the delivery of the calibration medium into the valve body, preferably, the fixing mechanism includes a placement groove opened on the calibration table. A communication hole matching the calibration tube is opened on one side of the calibration table close to the placement groove. A sealing ring is fixedly connected inside the placement groove. An installation groove communicating with the placement groove is opened inside the calibration table. Among them, the placement groove matches the inlet end of the valve body. A pressure sensor is arranged inside the calibration tube. A clamping component is arranged inside the placement groove.

[0009] To facilitate the fastening of the valve body and ensure the stability during the delivery of the calibration medium, further, the clamping component includes a driving motor fixedly connected to the calibration table. A rotating ring is rotatably connected inside the installation groove. An outer ring gear is fixedly connected to the lower part of the outer wall of the rotating ring. A driving gear meshing with the outer ring gear is rotatably connected inside the installation groove. An inner ring gear is fixedly connected to the inner wall of the rotating ring. A central hole is opened at the center of the rotating ring. Multiple adjusting gears meshing with the inner ring gear are rotatably connected inside the installation groove. An active rack meshing with the adjusting gears is slidably connected inside the central hole. A limiting block is fixedly connected to the lower part of the end of the active rack away from the adjusting gears. A chute matching the limiting block is opened at the bottom of the installation groove. Among them, the driving gear is connected to the output end of the driving motor. The adjusting gears are evenly distributed inside the installation groove. A fixing piece is fixedly connected to the end of the active rack close to the adjusting gears. The driven gear meshes with the outer ring gear.

[0010] To improve the effect of fastening the valve body, even further, a groove is opened at the bottom of the fixing piece. A pressing block is slidably connected inside the groove. Multiple first hydraulic rods and first springs are fixedly connected between the pressing block and the groove. The first springs are sleeved outside the first hydraulic rods. Among them, the side of the pressing block away from the placement groove is inclined.

[0011] To facilitate the storage of kinetic energy during the fastening of the valve body, even further, the positioning energy storage component includes mounting plates fixedly connected to the fixed rotating shaft and the movable rotating shaft. A torsion spring is fixedly connected between the two mounting plates and is sleeved outside the fixed rotating shaft and the movable rotating shaft. A fixing plate is fixedly connected to the side of the support plate close to the movable rotating shaft. A positioning component sleeved outside the movable rotating shaft is arranged on the fixing plate.

[0012] To ensure the stability of the knob when the valve body is fastened and to facilitate the release of stored kinetic energy, further, the positioning assembly includes a positioning cylinder fixedly connected to the fixing plate. A plurality of second hydraulic rods are fixedly connected inside the positioning cylinder. A second spring is fixedly connected inside the second hydraulic rod. One end of the second hydraulic rod close to the movable rotating shaft is fixedly connected to an arc-shaped plate that fits against the inner wall of the positioning cylinder. A positioning block is fixedly connected to the side of the arc-shaped plate away from the positioning cylinder. A plurality of positioning grooves matching the positioning blocks are opened on the outer wall of the movable rotating shaft. Among them, the second hydraulic rod includes a fixed part and a movable part. The arc-shaped plate shows magnetism when electrified, and the magnetic pole is opposite to the magnetic pole on the side where the fixed part of the second hydraulic rod is close to each other. The arc-shaped plate is electrically connected to the pressure sensor.

[0013] To facilitate the adjustment of the opening pressure of the valve body, further, the calibration mechanism includes a bracket fixedly connected to the side of the support plate close to the movable rotating shaft. A first horizontal shaft is rotatably connected to the side of the support plate close to the bracket. A second horizontal shaft matching the first horizontal shaft is rotatably connected to the bracket. An active horizontal shaft is arranged between the first horizontal shaft and the second horizontal shaft. Among them, the axes of the first horizontal shaft, the second horizontal shaft and the active horizontal shaft are on the same straight line, and a direction-changing assembly is arranged on the sides of the first horizontal shaft and the second horizontal shaft close to the active horizontal shaft.

[0014] To ensure the stability of the rotation of the first horizontal shaft, the second horizontal shaft and the active horizontal shaft, further, the direction-changing assembly includes transverse grooves opened between the support plate and the first horizontal shaft and on the side of the second horizontal shaft close to the active horizontal shaft. Both ends of the active horizontal shaft extend into the interior of the transverse groove, and the outer wall of the active horizontal shaft fits against the inner wall of the transverse groove.

[0015] To facilitate the adjustment of the rotation direction of the valve body knob, further, it also includes an electromagnet fixedly connected to the side of the transverse groove away from the active horizontal shaft. A permanent magnet is fixedly connected to the end of the active horizontal shaft. A third hydraulic rod and a third spring are fixedly connected between the electromagnet and the permanent magnet. Among them, the electromagnet is electrically connected to the pressure sensor. The electromagnet shows magnetism when electrified, and the magnetic pole on the side close to the permanent magnet is the same. One of the third hydraulic rods is connected to the first hydraulic rod through a pipeline.

[0016] To ensure the stability of the rotation of the knob, further, it also includes a driving bevel gear fixedly connected to the top of the movable rotating shaft. Two driven bevel gears are symmetrically and fixedly connected to the active horizontal shaft. An adjusting disc is fixedly connected to the end of the second horizontal shaft away from the active horizontal shaft. Among them, the driving bevel gear is located between the two driven bevel gears, and the adjusting disc meshes with the knob of the valve body.

[0017] Compared with the prior art, the present invention provides an intelligent calibration platform for safety valves, having the following beneficial effects:

[0018] 1. The intelligent safety valve calibration platform can quickly fix the valve body through the fixing mechanism, and then convey the calibration medium into the valve body through the calibration pipe. It not only has simple operation, but also can ensure the stability of the valve body during calibration, thus improving the efficiency of valve body calibration.

[0019] 2. The intelligent safety valve calibration platform can store the kinetic energy when the valve body is tightened through the fixing mechanism and the positioning energy storage component. It can not only avoid the influence on the knob of the valve body when the valve body is tightened, but also facilitate the subsequent driving of the knob to rotate.

[0020] 3. The intelligent safety valve calibration platform can automatically adjust the rotation direction of the calibration mechanism according to the calibration result through the direction-changing component, thereby driving the knob of the valve body to rotate in different directions according to the situation, and then adjusting the opening pressure of the valve body. And when the opening pressure of the valve body reaches the standard, it stops adjusting in time. It not only improves the intelligence level of the safety valve calibration equipment, but also improves the calibration accuracy of the safety valve.

[0021] The parts not involved in this device are the same as or can be implemented by the prior art. The present invention can overcome the problems of cumbersome safety valve calibration operation, low calibration efficiency, low intelligence level, and low calibration accuracy. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of an intelligent safety valve calibration platform proposed by the present invention;

[0023] Figure 2 It is a partial structural schematic diagram of an intelligent safety valve calibration platform proposed by the present invention Figure 1 ;

[0024] Figure 3 It is a schematic diagram of the internal structure of the installation groove in an intelligent safety valve calibration platform proposed by the present invention;

[0025] Figure 4 It is a schematic diagram of the sectional structure of the movable rack and the fixed part in an intelligent safety valve calibration platform proposed by the present invention;

[0026] Figure 5 It is a partial structural schematic diagram of an intelligent safety valve calibration platform proposed by the present invention Figure 2 ;

[0027] Figure 6 It is an intelligent safety valve calibration platform proposed by the present invention Figure 5 of the sectional structural schematic diagram;

[0028] Figure 7 It is an intelligent safety valve calibration platform proposed by the present invention Figure 6Schematic diagram of part A;

[0029] Figure 8 An intelligent calibration platform for safety valves proposed by the present invention Figure 6 Schematic diagram of part B.

[0030] In the figure: 1, calibration table; 2, placement groove; 3, communication hole; 4, sealing ring; 5, installation groove; 6, drive motor; 7, drive gear; 8, rotating ring; 9, outer ring gear; 10, central hole; 11, inner ring gear; 12, adjusting gear; 13, chute; 14, movable rack; 15, limit block; 16, fixing piece; 17, groove; 18, pressing block; 19, first hydraulic rod; 20, first spring; 21, valve body; 22, calibration pipe; 23, support plate; 24, driven gear; 25, fixed rotating shaft; 26, movable rotating shaft; 27, mounting plate; 28, torsion spring; 29, fixing plate; 30, positioning component; 301, positioning cylinder; 302, second hydraulic rod; 303, second spring; 304, arc plate; 305, positioning block; 306, positioning groove; 31, driving bevel gear; 32, bracket; 33, first horizontal shaft; 34, second horizontal shaft; 35, movable horizontal shaft; 351, horizontal groove; 352, electromagnetic block; 353, permanent magnet block; 354, third hydraulic rod; 355, third spring; 36, driven bevel gear; 37, adjusting disc. Specific embodiments

[0031] 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.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0033] Embodiment:

[0034] Refer to Figures 1 - 8, a smart safety valve calibration platform, including a calibration bench 1 and a valve body 21. Pillars are provided at the bottom of the calibration bench 1. The specific structure of the valve body 21 can refer to the technical solutions in the prior art, which can be known to those skilled in the art and will not be elaborated here. It further includes: a fixing mechanism provided on the calibration bench 1 for fixing the valve body 21; a calibration pipe 22 connected to the calibration bench 1 and communicating with the fixing mechanism, and the other end of the calibration pipe 22 is communicated with the conveying device of the calibration medium for adjusting the pressure of the calibration medium. The valve body 21 is communicated with the calibration pipe 22 through the fixing mechanism; a support plate 23 and a fixed rotating shaft 25 provided on the calibration bench 1. The bottom end of the fixed rotating shaft 25 is fixedly connected with a driven gear 24 meshing with part of the structure of the fixing mechanism, and the top end of the fixed rotating shaft 25 is rotatably connected with a movable rotating shaft 26. Among them, a positioning energy storage component is provided between the fixed rotating shaft 25 and the movable rotating shaft 26, and a calibration mechanism is provided between the support plate 23 and the movable rotating shaft 26. According to the calibration pressure, the rotation direction of the calibration mechanism can be adjusted to adjust the opening pressure of the valve body 21.

[0035] Refer to Figures 1 - 2 , the fixing mechanism includes a placement groove 2 opened on the calibration bench 1. A communication hole 3 matching the calibration pipe 22 is opened on one side of the calibration bench 1 close to the placement groove 2. A sealing ring 4 is fixedly connected inside the placement groove 2. An installation groove 5 communicating with the placement groove 2 is opened inside the calibration bench 1. Among them, the placement groove 2 matches the inlet end of the valve body 21. A pressure sensor is provided inside the calibration pipe 22, and a clamping component is provided inside the placement groove 2.

[0036] The size of the placement groove 2 is not limited here. The size of the placement groove 2 can match the inlet end of the valve body 21 or be larger than the size of the inlet end of the valve body 21. The sealing ring 4 can be made of rubber material. The size of the communication hole 3 matches or is smaller than the size of the inlet end of the valve body 21, so that when the calibration medium is conveyed through the calibration pipe 22, the calibration medium can enter the inside of the valve body 21 through the communication hole 3.

[0037] Refer to Figures 2 - 3, the clamping assembly includes a driving motor 6 fixedly connected to the calibration table 1. A rotating ring 8 is rotatably connected inside the installation groove 5. A outer ring gear 9 is fixedly connected to the lower part of the outer wall of the rotating ring 8. A driving gear 7 meshing with the outer ring gear 9 is rotatably connected inside the installation groove 5. An inner ring gear 11 is fixedly connected to the inner wall of the rotating ring 8. A central hole 10 is provided at the center of the rotating ring 8. A plurality of adjusting gears 12 meshing with the inner ring gear 11 are rotatably connected inside the installation groove 5. An active rack 14 meshing with the adjusting gears 12 is slidably connected inside the central hole 10. A limiting block 15 is fixedly connected to the lower part of the end of the active rack 14 away from the adjusting gear 12. A sliding groove 13 matching the limiting block 15 is provided at the bottom of the installation groove 5. Among them, the driving gear 7 is connected to the output end of the driving motor 6. The adjusting gears 12 are evenly distributed inside the installation groove 5. A fixing member 16 is fixedly connected to the end of the active rack 14 close to the adjusting gear 12. The driven gear 24 meshes with the outer ring gear 9.

[0038] Initially, the fixing member 16 is inside the installation groove 5 and will not affect the placement of the valve body 21. When it is necessary to fasten the inlet end of the valve body 21, the driving motor 6 is started to drive the driving gear 7 to rotate, so as to drive the rotating ring 8 to rotate through the outer ring gear 9, and then drive the active rack 14 to move along the central hole 10 towards the placement groove 2 through the inner ring gear 11 and the adjusting gears 12, so that the fixing member 16 gradually moves to the inlet end of the valve body 21, thereby fastening the inlet end of the valve body 21 on the sealing ring 4. During the movement of the active rack 14, under the action of the sliding groove 13 and the limiting block 15, the stability of the active rack 14 during movement is ensured.

[0039] Refer to Figure 4 , a groove 17 is provided at the bottom of the fixing member 16. A pressing block 18 is slidably connected inside the groove 17. A plurality of first hydraulic rods 19 and first springs 20 are fixedly connected between the pressing block 18 and the groove 17. The first spring 20 is sleeved outside the first hydraulic rod 19. Among them, the side of the pressing block 18 away from the placement groove 2 is inclined.

[0040] Initially, the fixing member 16 is located inside the installation groove 5, the pressing block 18 is located inside the groove 17, and the first spring 20 is in a compressed state. When the fixing member 16 is separated from the installation groove 5 (at this time, the fixing member 16 is located in the placement groove 2), at the same time, the pressing block 18 is driven by the first spring 20 to move out of the groove 17, so as to fasten the inlet end of the valve body 21. And when the initial opening pressure of the valve body 21 is too high (it is necessary to rotate the knob of the valve body 21 to reduce the opening pressure of the valve body 21), the pressure between the pressing block 18 and the inlet end of the valve body 21 can be adjusted through the first hydraulic rod 19. While ensuring the stable fastening of the valve body 21, the wear of the inlet end of the valve body 21 caused by the pressing block 18 can be reduced.

[0041] Refer to Figure 1 and Figure 5 , the positioning energy storage component includes a mounting plate 27 fixedly connected to the fixed rotating shaft 25 and the movable rotating shaft 26. A torsion spring 28 is fixedly connected between the two groups of mounting plates 27, and the torsion spring 28 is sleeved outside the fixed rotating shaft 25 and the movable rotating shaft 26. One side of the support plate 23 close to the movable rotating shaft 26 is fixedly connected with a fixing plate 29, and a positioning component 30 sleeved outside the movable rotating shaft 26 is arranged on the fixing plate 29.

[0042] When the inlet end of the valve body 21 is tightened, it will drive the fixed rotating shaft 25 to rotate. Initially, the positioning component 30 can fix the movable rotating shaft 26, that is, when the fixed rotating shaft 25 rotates, the movable rotating shaft 26 will not rotate, but the kinetic energy of rotation is stored on the torsion spring 28. That is to say, when the inlet end of the valve body 21 is tightened, not only can the kinetic energy during tightening be stored, but also the adjustment of the opening pressure of the valve body 21 can be avoided.

[0043] Refer to Figures 6 - 7 , the positioning component 30 includes a positioning cylinder 301 fixedly connected to the fixing plate 29. A plurality of second hydraulic rods 302 are fixedly connected inside the positioning cylinder 301. A second spring 303 is fixedly connected inside the second hydraulic rod 302. One end of the second hydraulic rod 302 close to the movable rotating shaft 26 is fixedly connected with an arc plate 304 that fits against the inner wall of the positioning cylinder 301. A positioning block 305 is fixedly connected to the side of the arc plate 304 away from the positioning cylinder 301. A plurality of positioning grooves 306 matching the positioning blocks 305 are opened on the outer wall of the movable rotating shaft 26. Among them, the second hydraulic rod 302 includes a fixed part and a movable part. The arc plate 304 shows magnetism when electrified, and the magnetic pole is opposite to the magnetic pole on the side of the fixed part of the second hydraulic rod 302 close to it. The arc plate 304 is electrically connected to the pressure sensor.

[0044] When the fixed rotating shaft 25 rotates, the calibration medium will not be transported into the valve body 21 through the calibration pipe 22. At this time, the arc plate 304 is not electrified, and the second hydraulic rod 302 drives the arc plate 304 and the positioning block 305 to move toward the movable rotating shaft 26 under the action of the second spring 303, and under the action of the positioning groove 306, the movable rotating shaft 26 is fixed. When transporting the calibration medium, when the opening pressure of the valve body 21 needs to be adjusted, the pressure sensor controls the arc plate 304 to be electrified. Under the action of the suction force, the arc plate 304 is driven to move toward the second hydraulic rod 302, so that the positioning block 305 is separated from the positioning groove 306. At this time, the kinetic energy stored in the torsion spring 28 drives the movable rotating shaft 26 to rotate, so as to adjust the opening pressure of the valve body 21.

[0045] Refer to Figures 5 - 6, the calibration mechanism includes a bracket 32 fixedly connected to one side of the support plate 23 close to the movable rotating shaft 26. A first horizontal shaft 33 is rotatably connected to one side of the support plate 23 close to the bracket 32. A second horizontal shaft 34 matching the first horizontal shaft 33 is rotatably connected to the bracket 32. A movable horizontal shaft 35 is arranged between the first horizontal shaft 33 and the second horizontal shaft 34. Among them, the axes of the first horizontal shaft 33, the second horizontal shaft 34 and the movable horizontal shaft 35 are on the same straight line, and a direction-changing component is arranged on one side of the first horizontal shaft 33 and the second horizontal shaft 34 close to the movable horizontal shaft 35.

[0046] When the first horizontal shaft 33, the second horizontal shaft 34 and the movable horizontal shaft 35 rotate, the movable horizontal shaft 35 can move along the directions of the first horizontal shaft 33 and the second horizontal shaft 34, and does not affect the rotation of the first horizontal shaft 33 and the second horizontal shaft 34.

[0047] Refer to Figure 6 and Figure 8 , the direction-changing component includes transverse grooves 351 opened between the support plate 23 and the first horizontal shaft 33 and on one side of the second horizontal shaft 34 close to the movable horizontal shaft 35. Both ends of the movable horizontal shaft 35 extend into the interior of the transverse groove 351, and the outer wall of the movable horizontal shaft 35 is in contact with the inner wall of the transverse groove 351; it also includes an electromagnet 352 fixedly connected to one side of the transverse groove 351 away from the movable horizontal shaft 35. A permanent magnet 353 is fixedly connected to the end of the movable horizontal shaft 35. A third hydraulic rod 354 and a third spring 355 are fixedly connected between the electromagnet 352 and the permanent magnet 353. Among them, the electromagnet 352 is electrically connected to the pressure sensor. When the electromagnet 352 is energized, it shows magnetism, and the magnetic poles on the side close to the permanent magnet 353 are the same. One group of the third hydraulic rods 354 is connected to the first hydraulic rod 19 through a pipeline.

[0048] It should be explained that the control and adjustment between the electromagnet 352 and the pressure sensor are not limited here. The staff can adjust according to the actual situation (the direction in which the knob needs to be rotated when adjusting the opening pressure of the valve body 21). In addition, the connection between the pressure sensor and the electromagnet 352 can be realized by setting slip rings on the first horizontal shaft 33 or the second horizontal shaft 34. This is a conventional means in the prior art, so it will not be elaborated. When it is necessary to increase the opening pressure of the valve body 21, one group of electromagnets 352 is energized through the pressure sensor. When it is necessary to decrease the opening pressure of the valve body 21, the other group of electromagnets 352 is energized through the pressure sensor. Thus, according to the adjustment situation of the opening pressure of the valve body 21 as needed, the movable horizontal shaft 35 is driven to move towards one side of the first horizontal shaft 33 or the second horizontal shaft 34.

[0049] Refer to Figure 1 、 Figure 5 and Figure 6, further comprising a driving bevel gear 31 fixedly connected to the top end of the movable rotating shaft 26, and two groups of driven bevel gears 36 are symmetrically and fixedly connected to the movable horizontal shaft 35. One end of the second horizontal shaft 34 away from the movable horizontal shaft 35 is fixedly connected with an adjusting disk 37. Among them, the driving bevel gear 31 is located between the two groups of driven bevel gears 36, and the adjusting disk 37 is engaged with the knob of the valve body 21.

[0050] Initially, the two groups of driven bevel gears 36 are disengaged from the driving bevel gear 31. When it is necessary to adjust the opening pressure of the valve body 21, one of the groups of driven bevel gears 36 is driven to be engaged with the driving bevel gear 31. According to the increase or decrease of the opening pressure of the valve body 21, the driven bevel gears 36 on different sides are engaged with the driving bevel gear 31, so that the first horizontal shaft 33, the second horizontal shaft 34 and the adjusting disk 37 rotate in different directions, realizing the forward or reverse rotation of the knob of the valve body 21, so as to adjust the opening pressure of the valve body 21.

[0051] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. An intelligent calibration platform for safety valves, comprising a calibration bench (1) and a valve body (21), characterized in that, It further includes: A fixing mechanism disposed on the calibration table (1) for fixing the valve body (21). A calibration pipe (22) connected to and communicating with the fixing mechanism is connected to the calibration table (1), and the valve body (21) communicates with the calibration pipe (22) through the fixing mechanism; A support plate (23) and a fixed rotating shaft (25) disposed on the calibration table (1). A driven gear (24) meshing with a partial structure of the fixing mechanism is fixedly connected to the bottom end of the fixed rotating shaft (25), and a movable rotating shaft (26) is rotatably connected to the top end of the fixed rotating shaft (25). Wherein, a positioning energy storage component is disposed between the fixed rotating shaft (25) and the movable rotating shaft (26), and a calibration mechanism is disposed between the support plate (23) and the movable rotating shaft (26). The rotation direction of the calibration mechanism can be adjusted according to the calibration pressure for adjusting the opening pressure of the valve body (21). The fixing mechanism includes a placement groove (2) opened on the calibration table (1). A communication hole (3) matching the calibration pipe (22) is opened on one side of the calibration table (1) close to the placement groove (2). A sealing ring (4) is fixedly connected inside the placement groove (2), and an installation groove (5) communicating with the placement groove (2) is opened inside the calibration table (1). Wherein, the placement groove (2) matches the inlet end of the valve body (21). A pressure sensor is disposed inside the calibration pipe (22), and a clamping component is disposed inside the placement groove (2). The clamping component includes a driving motor (6) fixedly connected to the calibration table (1). A rotating ring (8) is rotatably connected inside the installation groove (5). An outer ring gear ring (9) is fixedly connected to the lower part of the outer wall of the rotating ring (8). A driving gear (7) meshing with the outer ring gear ring (9) is rotatably connected inside the installation groove (5). An inner ring gear ring (11) is fixedly connected to the inner wall of the rotating ring (8). A central hole (10) is opened at the center of the rotating ring (8). A plurality of adjusting gears (12) meshing with the inner ring gear ring (11) are rotatably connected inside the installation groove (5). A movable rack (14) meshing with the adjusting gears (12) is slidably connected inside the central hole (10). A limiting block (15) is fixedly connected to the lower part of the end of the movable rack (14) away from the adjusting gears (12). A chute (13) matching the limiting block (15) is opened at the bottom of the installation groove (5). Wherein, the driving gear (7) is connected to the output end of the driving motor (6). The adjusting gears (12) are evenly distributed inside the installation groove (5). A fixing member (16) is fixedly connected to the end of the movable rack (14) close to the adjusting gears (12). The driven gear (24) meshes with the outer ring gear ring (9).

2. The intelligent calibration platform for a safety valve according to claim 1, wherein, A groove (17) is formed at the bottom of the fixing member (16). A pressing block (18) is slidably connected inside the groove (17). A plurality of first hydraulic rods (19) and first springs (20) are fixedly connected between the pressing block (18) and the groove (17). The first spring (20) is sleeved outside the first hydraulic rod (19). Among them, one side of the pressing block (18) away from the placing groove (2) is inclined.

3. The intelligent calibration platform for a safety valve according to claim 2, characterized in that, The positioning energy storage assembly includes mounting plates (27) fixedly connected to the fixed rotating shaft (25) and the movable rotating shaft (26). A torsion spring (28) is fixedly connected between the two mounting plates (27). And the torsion spring (28) is sleeved outside the fixed rotating shaft (25) and the movable rotating shaft (26). One side of the support plate (23) close to the movable rotating shaft (26) is fixedly connected with a fixing plate (29). A positioning assembly (30) sleeved outside the movable rotating shaft (26) is arranged on the fixing plate (29).

4. An intelligent calibration platform for a safety valve according to claim 3, characterized in that, The positioning assembly (30) includes a positioning cylinder (301) fixedly connected to the fixing plate (29). A plurality of second hydraulic rods (302) are fixedly connected inside the positioning cylinder (301). A second spring (303) is fixedly connected inside the second hydraulic rod (302). One end of the second hydraulic rod (302) close to the movable rotating shaft (26) is fixedly connected with an arc-shaped plate (304) that fits the inner wall of the positioning cylinder (301). A positioning block (305) is fixedly connected to one side of the arc-shaped plate (304) away from the positioning cylinder (301). A plurality of positioning grooves (306) matching the positioning blocks (305) are formed on the outer wall of the movable rotating shaft (26). Among them, the second hydraulic rod (302) includes a fixed part and a movable part. The arc-shaped plate (304) shows magnetism when electrified, and the magnetic pole is opposite to the magnetic pole on the side of the fixed part of the second hydraulic rod (302) close to each other. The arc-shaped plate (304) is electrically connected to the pressure sensor.

5. An intelligent calibration platform for a safety valve according to claim 4, characterized in that, The calibration mechanism includes a bracket (32) fixedly connected to one side of the support plate (23) close to the movable rotating shaft (26). A first horizontal shaft (33) is rotatably connected to one side of the support plate (23) close to the bracket (32). A second horizontal shaft (34) matching the first horizontal shaft (33) is rotatably connected to the bracket (32). An active horizontal shaft (35) is arranged between the first horizontal shaft (33) and the second horizontal shaft (34). Among them, the axes of the first horizontal shaft (33), the second horizontal shaft (34) and the active horizontal shaft (35) are on the same straight line. And a direction-changing component is arranged on the sides of the first horizontal shaft (33) and the second horizontal shaft (34) close to the active horizontal shaft (35).

6. An intelligent calibration platform for a safety valve according to claim 5, characterized in that, The direction-changing component includes transverse grooves (351) formed between the support plate (23) and the first horizontal shaft (33) and on the side of the second horizontal shaft (34) close to the active horizontal shaft (35). The two ends of the active horizontal shaft (35) extend into the transverse grooves (351). And the outer wall of the active horizontal shaft (35) fits the inner wall of the transverse grooves (351).

7. An intelligent calibration platform for a safety valve according to claim 6, characterized in that, It further includes an electromagnetic block (352) fixedly connected to the side of the transverse groove (351) away from the movable horizontal shaft (35). A permanent magnet block (353) is fixedly connected to the end of the movable horizontal shaft (35). A third hydraulic rod (354) and a third spring (355) are fixedly connected between the electromagnetic block (352) and the permanent magnet block (353). Among them, the electromagnetic block (352) is electrically connected to the pressure sensor. When the electromagnetic block (352) is energized, it shows magnetism and has the same magnetic pole as the side of the permanent magnet block (353) that is close to each other. One group of the third hydraulic rods (354) is connected to the first hydraulic rod (19) through a pipeline.

8. An intelligent calibration platform for a safety valve according to claim 5, characterized in that, It further includes a driving bevel gear (31) fixedly connected to the top of the movable rotating shaft (26). Two groups of driven bevel gears (36) are symmetrically and fixedly connected to the movable horizontal shaft (35). An adjusting disc (37) is fixedly connected to the end of the second horizontal shaft (34) away from the movable horizontal shaft (35). Among them, the driving bevel gear (31) is located between the two groups of driven bevel gears (36). The adjusting disc (37) is engaged with the knob of the valve body (21).

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