A multi-range adjustable pressure transmitter

Abstract

The present application relates to the technical field of pressure transmitter of fluid pressure test, and particularly relates to a multi-range adjustable pressure transmitter, which comprises a machine shell body, an outer ring shell in annular shape is fixed on the machine shell body as a whole, and the outer ring shell and the machine shell body are in circular ring shape, a detection turnover mechanism capable of automatic turnover adjustment is rotatably arranged on the inner side of the machine shell body, single-crystal pressure detection mechanisms are detachably arranged on the inner sides of the upper and lower ends of the detection turnover mechanism, the inner shaft rod rotates to push the inner sliding block, drives a series of components such as the force applying inclined block, the force receiving inclined block and the vertical clamping rod to act, so that the tooth ring body is released from clamping, the torsional spring shaft is reset to drive the adjusting shaft rod to turn over, the single-crystal silicon piece is turned over to the upper side of the machine shell body, and the standby single-crystal silicon piece is reset to the inner side of the sealing top ring, so that the detection element is updated in time, the system is maintained to stably operate, the downtime caused by element damage is reduced, and the work efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of pressure transmitter technology for fluid pressure testing, and specifically to a multi-range adjustable pressure transmitter. Background Technology

[0002] The main function of a pressure transmitter is to transmit pressure signals to electronic equipment, which then displays the pressure on a computer. Its principle is roughly as follows: it converts the mechanical signal of water pressure into an electronic signal such as current (4-20mA). Pressure and voltage or current have a linear relationship, generally a direct proportional relationship. Therefore, the voltage or current output by the transmitter increases with increasing pressure, thus deriving a relationship between pressure and voltage or current. The two pressures of the measured medium in the pressure transmitter are introduced into high and low pressure chambers. The low-pressure chamber uses atmospheric pressure or vacuum, acting on the diaphragms on both sides of the δ element (i.e., the sensitive element), and is transmitted to both sides of the measuring diaphragm through the diaphragms and the filling fluid within the element. A Chinese patent discloses a pressure transmitter (authorization announcement number CN211085555U).

[0003] However, in the existing technology, the pressure transmitter may deform due to prolonged use or excessive pressure in the pipeline, resulting in measurement errors. There is a need to solve the problem of automatically replacing the deformed test element with a spare element without affecting the pressure detection in the pipeline, while facilitating subsequent replacement.

[0004] Therefore, those skilled in the art have provided a multi-range adjustable pressure transmitter to solve the problems mentioned in the background art. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides:

[0006] A multi-range adjustable pressure transmitter includes: a housing; the housing is integrally fixed with an outer ring shell of annular shape, and the outer ring shell and the inner shape of the housing form a ring.

[0007] The inner side of the housing is equipped with a detection and flipping mechanism that can be automatically flipped and adjusted.

[0008] The detection flipping mechanism can be detachably assembled with a single crystal pressure detection mechanism on the inner sides of both the upper and lower ends.

[0009] Furthermore, there are two single-crystal pressure detection mechanisms in total. One of the single-crystal pressure detection mechanisms is detachably installed on the top of the detection flip mechanism, specifically serving as a backup detection unit for the pressure transmitter. The other single-crystal pressure detection mechanism is detachably installed on the bottom of the detection flip mechanism, specifically serving as the main detection unit for the pressure transmitter.

[0010] The single-crystal pressure detection mechanism includes an assembly inner cylinder, and four multi-range adjustment structures are assembled in a ring at equal intervals on the inner side of the assembly inner cylinder. A single-crystal silicon wafer for pressure detection is assembled between the four multi-range adjustment structures.

[0011] The monocrystalline silicon wafer has deformation conduction structures on both its upper and lower surfaces, located inside the assembly inner cylinder.

[0012] Preferably, the detection flipping mechanism includes an adjusting rod rotatably disposed inside the machine housing, and a torsion spring shaft that can be elastically reset is assembled between the adjusting rod and the machine housing, and a flipping inner cylinder is fixedly installed at one end of the inner side of the adjusting rod;

[0013] A gear ring is fixedly installed on the outside of the adjusting rod on one side of the flipping inner cylinder, and the gear ring meshes with a gear body, and the gear body is connected to a brushless motor.

[0014] Furthermore, an electronically controlled shaft is assembled between the gear body and the brushless motor.

[0015] Preferably, the inner side of the flipping inner cylinder is provided with force-applying inclined blocks at the positions corresponding to the two deformation transmission structures, and the outer side of the force-applying inclined blocks is provided with force-receiving inclined blocks, and the force-receiving inclined blocks are fixed by a vertical clamping rod.

[0016] The vertical lever has a vertical sliding groove on its inner side at the end away from the force-bearing inclined block, and an inner sliding rod is fixedly installed inside the vertical sliding groove. A sliding hole block that is movably located inside the vertical sliding groove is slidably sleeved on the outside of the inner sliding rod.

[0017] Preferably, a return spring is assembled between the sliding block and the vertical locking rod, and the return spring is an assembly sleeved on the outside of the inner sliding rod;

[0018] An assembly frame is fixedly mounted on the outer side of the sliding block, and the assembly frame is fixedly installed on the outer wall of the flipping inner cylinder.

[0019] Preferably, the inner cavity of the assembly cylinder is sealed to hold silicone oil, and the bottom of the assembly cylinder is sealed and movable with a silicone oil plate;

[0020] The inner wall of the assembly inner cylinder is movably provided with an inner slider at the position corresponding to the deformation transmission structure.

[0021] The bottom of the inner cylinder is fixed with an assembly ring, and the inner side of the assembly ring is provided with an assembly bolt for spiral locking.

[0022] Preferably, the multi-range adjustment structure is an assembly inner frame fixedly installed on the inner wall of the assembly inner cylinder, and a pressure plate is symmetrically and movable along the middle of the inner side of the assembly inner frame, and a rotating shaft is rotatably installed on the outer surface of the pressure plate.

[0023] An adjusting spring is fitted to one end of the outer side of the rotating shaft, and a screw is fitted to the end of the adjusting spring away from the rotating shaft.

[0024] Preferably, the inner wall of the assembly inner frame is provided with internal threads, and the screw shaft is spirally disposed in the internal threads of the assembly inner frame;

[0025] The end of the screw shaft away from the adjusting spring is connected to a servo motor, and a vertical rail frame is fixed to the outside of the servo motor. The vertical rail frame is slidably set inside the assembly frame.

[0026] Preferably, the deformation transmission structure includes a closed inner frame fixedly installed on the inner wall of the assembly inner cylinder, and an inner shaft is rotatably installed on the inner side of the closed inner frame. A vertical pressure plate and an inclined pressure plate are fixedly and integrally arranged on the inner shaft.

[0027] Preferably, a deformation probe is fixed to one end of the inclined bottom of the inclined pressure plate, and a deformation probe rod is provided between the bottom of the deformation probe and the single crystal silicon wafer.

[0028] Preferably, both the upper and lower ends of the enclosed inner frame are integrally fixed with a sealing and oil-proof flexible rubber plate, and the gap between the flexible rubber plate and the inclined pressure plate at the lower end of the enclosed inner frame and the enclosed inner frame is sealed.

[0029] Both the vertical pressure plate and the enclosed inner frame are equipped with electrically conductive plates that come into contact with each other.

[0030] When the angle of the vertical pressure plate changes, the electrical contact plate on the vertical pressure plate separates from the electrical contact plate on the enclosed inner frame.

[0031] The technical effects and advantages of this invention are as follows:

[0032] In this invention, when a single-crystal silicon wafer deforms, the deformation probe on the deformation measuring rod is activated, the inclined pressure plate rotates to separate the electrical contact plate, and the controller receives the signal and closes the external solenoid valve, which can promptly prevent abnormal situations, avoid danger, and ensure the safe operation of the system.

[0033] In this invention, the rotation of the inner shaft pushes the inner slider, which in turn drives a series of components such as the force-applying inclined block, the force-receiving inclined block, and the vertical locking rod to move. This causes the gear ring to release from its jamming position, and the torsion spring shaft to reset, causing the adjusting rod to flip over and flip the deformed monocrystalline silicon wafer to the top of the machine housing. At the same time, the spare monocrystalline silicon wafer is reset to the inside of the sealing top ring, ensuring that the detection element is updated in a timely manner, maintaining stable system operation, reducing downtime caused by component damage, and improving work efficiency. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of a multi-range adjustable pressure transmitter provided in this application;

[0035] Figure 2This is a front structural diagram of a multi-range adjustable pressure transmitter provided in this application;

[0036] Figure 3 This is a schematic diagram of the side structure of a multi-range adjustable pressure transmitter provided in this application;

[0037] Figure 4 This is a schematic diagram of the disassembled structure of a multi-range adjustable pressure transmitter provided in this application;

[0038] Figure 5 This is a schematic diagram of the bottom pipe in a multi-range adjustable pressure transmitter provided in this application;

[0039] Figure 6 This is a schematic diagram of the contact plate in a multi-range adjustable pressure transmitter provided in this application;

[0040] Figure 7 This is a schematic diagram of the detection flipping mechanism in a multi-range adjustable pressure transmitter provided in this application;

[0041] Figure 8 This application provides a multi-range adjustable pressure transmitter. Figure 7 A schematic diagram of the structure of A in the middle;

[0042] Figure 9 This is a schematic diagram of the single-crystal pressure detection mechanism in a multi-range adjustable pressure transmitter provided in this application.

[0043] Figure 10 This is a schematic diagram of the multi-range adjustment structure in a multi-range adjustable pressure transmitter provided in this application.

[0044] Figure 11 This is a schematic diagram of the structure of a single-crystal silicon wafer in a multi-range adjustable pressure transmitter provided in this application;

[0045] Figure 12 This application provides a multi-range adjustable pressure transmitter. Figure 10 Schematic diagram of the structure at point B;

[0046] Figure 13 This is a schematic diagram of the controller circuit in a multi-range adjustable pressure transmitter provided in this application.

[0047] In the picture:

[0048] 1. Housing; 2. Outer ring; 3. Pressure gauge; 4. Range gauge;

[0049] 5. Inspection and Tilting Mechanism; 501. Tilting Inner Cylinder; 502. Adjusting Shaft Rod; 503. Torsion Spring Shaft; 504. Gear Ring Body; 505. Gear Body; 506. Electrically Controlled Shaft; 507. Brushless Motor; 508. Force-Applying Inclined Block; 509. Force-Receiving Inclined Block; 510. Vertical Locking Rod; 511. Vertical Slide Groove; 512. Inner Slide Rod; 513. Return Spring; 514. Slide Hole Block; 515. Assembly Frame;

[0050] 6. Single crystal pressure testing mechanism; 601. Assembly inner cylinder; 602. Inner slider; 603. Silicone oil plate; 604. Assembly ring; 605. Single crystal silicon wafer; 606. Conductive ring;

[0051] 61. Multi-range adjustment structure; 6101. Assembly inner frame; 6102. Pressure plate; 6103. Rotating shaft; 6104. Adjusting spring; 6105. Screw shaft; 6106. Internal thread; 6107. Servo motor; 6108. Vertical rail frame;

[0052] 62. Deformation transmission structure; 6201. Enclosed inner frame; 6202. Flexible rubber sheet; 6203. Inner shaft; 6204. Vertical pressure plate; 6205. Electrical contact plate; 6206. Force application contact; 6207. Inclined pressure plate; 6208. Deformation probe; 6209. Deformation measuring rod;

[0053] 7. Connect the bottom tube; 8. Assemble the bottom ring; 9. Seal spring; 10. Seal top ring; 11. Water-cooled radiator; 12. Sensor group; 13. Touch plate lever; 14. Remove the top cover; 15. Control panel. Detailed Implementation

[0054] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Examples of the invention are given for illustrative and descriptive purposes only and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0055] Example 1: Please refer to Figures 1-6 , Figure 13 In this embodiment, a multi-range adjustable pressure transmitter is provided, comprising a housing 1; the housing 1 is integrally fixed with an outer ring shell 2 in the shape of an annulus, and the outer ring shell 2 and the inner shape of the housing 1 form a ring.

[0056] The inner side of the housing 1 is rotatably equipped with a detection and flipping mechanism 5 that can be automatically flipped and adjusted;

[0057] The detection flipping mechanism 5 can be detachably assembled with a single crystal pressure detection mechanism 6 on the inner sides of both the upper and lower ends.

[0058] Furthermore, there are two single-crystal pressure detection mechanisms 6 in total. One of the single-crystal pressure detection mechanisms 6 is detachably installed on the top of the detection flipping mechanism 5, specifically serving as a backup detection unit for the pressure transmitter. The other single-crystal pressure detection mechanism 6 is detachably installed on the bottom of the detection flipping mechanism 5, specifically serving as the main detection unit for the pressure transmitter.

[0059] The detection flipping mechanism 5 can automatically switch to another backup detection single crystal pressure detection mechanism 6 when the main detection unit 6 of the pressure transmitter is deformed.

[0060] The detection flipping mechanism 5 is provided with a rotatable and electrically connected electric slip ring in the middle. The electric slip ring is model DT05-02, and the detection flipping mechanism 5 is electrically connected to a controller located inside the housing 1 via the electric slip ring.

[0061] The western section of the housing 1 is integrally fixed with a bottom pipe 7, and the bottom pipe 7 is sealed and fixed inside. An assembly bottom ring 8 is slidably and sealingly provided on the bottom pipe 7, and a sealing top ring 10 is movably and sealingly provided on the upper end of the assembly bottom ring 8. A sealing spring 9 is assembled between the sealing top ring 10 and the assembly bottom ring 8. A force-applying contact 6206 is fixedly assembled at one end of the vertical pressure plate 6204 near the inner slider 602.

[0062] A sensor group 12 is mounted on the outside of the docking bottom tube 7, and the sensor group 12 includes a temperature sensor and a humidity sensor; the temperature sensor is a K-type thermocouple temperature sensor; the humidity sensor is a DHT11; and a water-cooled radiator 11 is installed on the outside of the sensor group 12, the water-cooled radiator 11 being a CT4H60-AL.

[0063] A touch plate 13 is rotatably installed on the inner side of the outer ring shell 2, and the inner side of the touch plate 13 touches the switch. A pressure gauge 3 is provided on one side of the machine housing 1, and a range gauge 4 is provided on the other side of the machine housing 1. A disassembly top cover 14 is detachably assembled on the top of the machine housing 1, and a control panel 15 electrically connected to the controller is installed on the surface of the disassembly top cover 14.

[0064] The controller is electrically connected to a battery and an IoT module, and the IoT module can wirelessly connect to external mobile terminals such as mobile phones.

[0065] Example 2: Please refer to Figures 7-8 In this embodiment, a detection flipping mechanism 5 is provided in a multi-range adjustable pressure transmitter;

[0066] The detection flipping mechanism 5 includes an adjusting rod 502 rotatably disposed inside the housing 1, and a torsion spring shaft 503 that can be elastically reset is assembled between the adjusting rod 502 and the housing 1. A flipping inner cylinder 501 is fixedly installed at one end of the adjusting rod 502; the automatic flipping power of the flipping inner cylinder 501 is the torsion spring shaft 503.

[0067] A gear ring body 504 is fixedly installed on the outside of the adjusting rod 502 on one side of the flipping inner cylinder 501, and the gear ring body 504 meshes with a gear body 505, and the gear body 505 is connected to a brushless motor 507; the model of the brushless motor 507 is A3525 / 12.

[0068] Furthermore, an electric control shaft 506 is assembled between the gear body 505 and the brushless motor 507; the model of the electric control shaft 506 is NRAF-5080.

[0069] The inner side of the flipping inner cylinder 501 is movably provided with force-applying inclined blocks 508 corresponding to the positions of the two deformation transmission structures 62, and the outer side of the force-applying inclined blocks 508 is closely attached to the force-receiving inclined blocks 509. The force-receiving inclined blocks 509 are fixed with a vertical locking rod 510. When the force-applying inclined blocks 508 extend outward, they can apply a pushing force to the force-receiving inclined blocks 509, moving the vertical locking rod 510 downward.

[0070] The vertical locking rod 510 has a vertical sliding groove 511 on its inner side at the end away from the force-bearing inclined block 509, and an inner sliding rod 512 is fixedly installed inside the vertical sliding groove 511. A sliding hole block 514, which is movably located inside the vertical sliding groove 511, is slidably sleeved on the outside of the inner sliding rod 512. The vertical locking rod 510 is slidably sleeved on the outside of the sliding hole block 514 through the inner sliding rod 512. Due to the limiting effect of the inner sliding rod 512 and the sliding hole block 514, the vertical locking rod 510 can only slide vertically when force is applied.

[0071] A return spring 513 is assembled between the sliding block 514 and the vertical locking rod 510, and the return spring 513 is sleeved on the outside of the inner sliding rod 512; the return spring 513 is used to elastically reset the vertical locking rod 510 when the force-applying inclined block 508 does not provide force during the replacement of the deformed single crystal silicon wafer 605; an assembly frame 515 is fixedly assembled on the outside of the sliding block 514, and the assembly frame 515 is fixedly set on the outer wall of the flipping inner cylinder 501.

[0072] Example 3: Please refer to Figures 9-12 In this embodiment, a single-crystal pressure detection mechanism 6 is provided in a multi-range adjustable pressure transmitter;

[0073] The single-crystal pressure detection mechanism 6 includes an inner assembly cylinder 601, and four multi-range adjustment structures 61 are arranged in a ring at equal intervals on the inner side of the inner assembly cylinder 601. A single-crystal silicon wafer 605 for pressure detection is assembled between the four multi-range adjustment structures 61. The positive and negative terminals of the single-crystal silicon wafer 605 are electrically connected to a conductive ring 606 located outside the inner assembly cylinder 601. The detection flipping mechanism 5 and the single-crystal pressure detection mechanism 6 are detachably electrically connected via the conductive ring 606, which is made of copper.

[0074] The monocrystalline silicon wafer 605 has deformation conduction structures 62 located inside the assembly inner cylinder 601 on both its upper and lower surfaces. The assembly inner cylinder 601 is sealed to hold silicone oil, and a silicone oil plate 603 is movably and sealed at the bottom of the assembly inner cylinder 601. Under the action of the silicone oil, the detected negative pressure and static pressure of the monocrystalline silicon wafer 605 have a certain balance. When external static pressure is generated, the volume of silicone oil shrinks, which can reduce the deformation of the monocrystalline silicon wafer 605.

[0075] An inner slider 602 is movably disposed on the inner wall of the assembly inner cylinder 601 at the position corresponding to the deformation transmission structure 62; the position of the inner slider 602 corresponds to the position of the force-applying inclined block 508 in the flipping inner cylinder 501; an assembly ring 604 is fixedly fixed at the bottom of the assembly inner cylinder 601, and an assembly bolt is provided on the inner side of the assembly ring 604 with a spiral locking screw; the assembly inner cylinder 601 is detachably screw-locked to the inner side of the flipping inner cylinder 501 through the assembly bolt of the assembly ring 604; the multi-range adjustment structure 61 is an assembly inner frame 6101 fixedly installed on the inner wall of the assembly inner cylinder 601, and a pressure plate 6102 is movably disposed symmetrically along the middle of the inner side of the assembly inner frame 6101; a rotating shaft 6103 is rotatably installed on the outer surface of the pressure plate 6102; there are two pressure plates 6102 in total, and the two pressure plates 6102 are used to clamp and fix the monocrystalline silicon wafer 605 in position.

[0076] An adjusting spring 6104 is fitted to one end of the outer side of the rotating shaft 6103, and a screw rod 6105 is fitted to the end of the adjusting spring 6104 away from the rotating shaft 6103; the adjusting spring 6104 is used to provide an elastic reset effect when the pressure plate 6102 clamps the monocrystalline silicon wafer 605; the inner wall of the assembly inner frame 6101 is provided with an internal thread 6106, and the screw rod 6105 is helically arranged in the internal thread 6106 of the assembly inner frame 6101; the screw rod 6105 rotates... The screw shaft 6105 can be driven along the internal thread 6106; a servo motor 6107 is connected to the end of the screw shaft 6105 away from the adjusting spring 6104, and a vertical rail frame 6108 is fixed to the outside of the servo motor 6107. The vertical rail frame 6108 is slidably set inside the assembly inner frame 6101; the servo motor 6107 is used to actively drive the screw shaft 6105 to rotate, and the vertical rail frame 6108 is used to limit the angle of the servo motor 6107 when the screw shaft 6105 moves vertically.

[0077] The deformation conduction structure 62 includes a closed inner frame 6201 fixedly installed on the inner wall of the assembly inner cylinder 601, and an inner shaft 6203 is rotatably installed on the inner side of the closed inner frame 6201. A vertical pressure plate 6204 and an inclined pressure plate 6207 are fixedly arranged on the inner shaft 6203. The vertical pressure plate 6204 is vertically located inside the closed inner frame 6201, and the inclined bottom end of the inclined pressure plate 6207 is located at the center of the monocrystalline silicon wafer 605. The inclined pressure plate 6207 and the monocrystalline silicon wafer 605 are connected. The components 05 are tightly attached; a deformation probe 6208 is fixed to one end of the inclined bottom of the inclined pressure plate 6207, and a deformation probe 6209 is tightly attached between the bottom of the deformation probe 6208 and the monocrystalline silicon wafer 605; when the monocrystalline silicon wafer 605 deforms during long-term use, the deformation probe 6209 will exert a pushing force on the deformation probe 6208, squeezing it against the inner shaft rod 6203 connected to the inclined pressure plate 6207, causing the vertical pressure plate 6204 to move in a circle along the inner shaft rod 6203.

[0078] Both ends of the enclosed inner frame 6201 are integrally fixed with oil-proof and sealing flexible rubber plates 6202, and the gap between the flexible rubber plate 6202, the inclined pressure plate 6207 and the enclosed inner frame 6201 at the lower end of the enclosed inner frame 6201 is sealed; both the vertical pressure plate 6204 and the enclosed inner frame 6201 are equipped with mutually contacting electric contact plates 6205. When the angle of the vertical pressure plate 6204 changes, the electric contact plate 6205 on the vertical pressure plate 6204 separates from the electric contact plate 6205 on the enclosed inner frame 6201.

[0079] According to the above embodiments, the working principle of this invention is as follows:

[0080] The housing 1 and the outer ring shell 2 are designed as a single unit. This design takes into account the pressure problems that the pressure sensing element 605 in the pressure transmitter may face during long-term detection. Since the 605 is prone to deformation when subjected to excessive pressure, a collaborative working mechanism of detection flipping mechanism 5 and 6 is designed. When the 605 deforms, the 605 can react quickly and trigger the 5 to flip up and down. This action ensures that the spare 6 can be replaced in time without affecting the pressure range detection, thus ensuring the continuity and accuracy of the detection.

[0081] When the monocrystalline silicon wafer 605 deforms, the deformed monocrystalline silicon wafer 605 will trigger the deformation probe 6208 on the deformation probe rod 6209. This action will trigger a series of mechanical reactions. The inclined pressure plate 6207 will rotate around the inner shaft rod 6203, causing the electric contact plate 6205 to separate. The electric contact plate 6205 is a key component connected to the external solenoid valve assembled at the bottom of the docking bottom tube 7. When the electrical signal of the separation of the electric contact plate 6205 is received by the controller, the external solenoid valve will automatically switch to the closed state to ensure the safe operation of the system.

[0082] The rotation of the inner shaft 6203 pushes the inner slider 602 to move outward, which in turn causes the force-applying inclined block 508 on the inner side of the flipping inner cylinder 501 to extend outward. The extension of the force-applying inclined block 508 will squeeze the force-receiving inclined block 509, causing it to move downward. The movement of the force-receiving inclined block 509 will then drive the vertical locking rod 510 to move downward, causing the vertical locking rod 510 to move along the inner slide rod 512 within the sliding hole block 514, thereby disengaging from the toothed ring body 504. When the toothed ring body 504 is not locked by the vertical locking rod 510, the torsion spring shaft 503 will automatically reset, and the adjusting shaft rod 502 will perform a 180-degree flipping action. This flipping action flips the deformed monocrystalline silicon wafer 605 to the top of the housing 1, while simultaneously resetting the spare monocrystalline silicon wafer 605 to the inner side of the sealing top ring 10, ensuring timely updates of the detection elements and stable operation of the system.

[0083] When the inner cylinder 501 is adjusted at an angle, pressure is applied to the sealing top ring 10. This pressure causes the sealing top ring 10 to compress the sealing spring 9, causing the sealing top ring 10 to descend to the inside of the assembly bottom ring 8. This descent helps to enhance the sealing between the inner cylinder 501 and the docking bottom pipe 7, thereby ensuring the sealing performance of the entire system and ensuring pressure stability and data accuracy during the testing process.

[0084] When the electrical signal output of the disconnected contact plate 6205 is not triggered by the rotation of the inner cylinder 501, it indicates that the inner cylinder 501 has not automatically rotated. In this case, the IoT module in the controller sends information to the terminal device for feedback. At the same time, the electric control shaft 506 remains in a closed state (the electric control shaft 506 is in an active state when it does not jam during automatic rotation). The brushless motor 507 rotates 180 degrees, driving the gear body 505 to mesh with the gear ring body 504, thereby realizing the rotation of the adjusting rod 502 and releasing the pressure on the torsion spring shaft 503. The backup single crystal pressure detection mechanism 6 is replaced by mechanical transmission. This process ensures the timely replacement of the backup detection mechanism and guarantees the continuity and reliability of the detection.

[0085] The servo motor 6107 in the single crystal pressure testing mechanism 6 can be individually controlled by the control panel 15, which facilitates the calibration and adjustment of the tilt angle of the four corners of the single crystal silicon wafer 605. This adjustment method can adapt to multi-range adjustment and calibration, meet different testing needs, and improve the flexibility and accuracy of testing.

[0086] After the servo motor 6107 is started, it will drive the screw shaft 6105 to rotate. The screw shaft 6105 is driven by the internal thread 6106, causing the screw shaft 6105 to descend, thereby adjusting the height of the pressure plate 6102 that contacts the monocrystalline silicon wafer 605. This adjustment process optimizes the applicability adjustment of the four corners of the monocrystalline silicon wafer 605, ensuring the performance of the monocrystalline silicon wafer under different pressure conditions and improving the accuracy and reliability of the detection.

[0087] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A multi-range adjustable pressure transmitter, characterized in that, include: casing; The housing is fixed with an outer ring shell of an annular shape, and the outer ring shell and the internal shape of the housing form a ring. The inner side of the housing is equipped with a detection and tilting mechanism that can be automatically tilted and adjusted. The inner sides of both the upper and lower ends of the detection flipping mechanism are detachably equipped with a single crystal pressure detection mechanism. Furthermore, there are two single-crystal pressure detection mechanisms in total. One single-crystal pressure detection mechanism is detachably installed on the top of the detection flip mechanism, which is the backup detection unit of the pressure transmitter. The other single-crystal pressure detection mechanism is detachably installed on the bottom of the detection flip mechanism, which is the main detection unit of the pressure transmitter. The single-crystal pressure detection mechanism includes an inner assembly cylinder, and four multi-range adjustment structures are assembled in a ring at equal intervals on the inner side of the inner assembly cylinder. A single-crystal silicon wafer for pressure detection is assembled between the four multi-range adjustment structures. The monocrystalline silicon wafer has deformation conduction structures located inside the assembly inner cylinder on both the top and bottom surfaces. The detection flipping mechanism includes an adjusting rod rotatably disposed inside the machine housing, and a torsion spring shaft that can be elastically reset is assembled between the adjusting rod and the machine housing. A flipping inner cylinder is fixedly installed at one end of the inner side of the adjusting rod. A gear ring is fixedly installed on the outside of the adjusting rod on one side of the flipping inner cylinder, and the gear ring meshes with a gear body, and the gear body is connected to a brushless motor. Furthermore, an electronically controlled shaft is assembled between the gear body and the brushless motor; The deformation transmission structure includes a closed inner frame fixedly installed on the inner wall of the assembly inner cylinder, and an inner shaft is rotatably installed on the inner side of the closed inner frame. A vertical pressure plate and an inclined pressure plate are fixedly installed on the inner shaft.

2. The multi-range adjustable pressure transmitter according to claim 1, characterized in that, The inner side of the flipping inner cylinder is movably provided with force-applying inclined blocks at the positions corresponding to the two deformation transmission structures, and a force-receiving inclined block is closely attached to the outer side of the force-applying inclined block. The force-receiving inclined block is fixed by a vertical clamping rod. The vertical lever has a vertical sliding groove on its inner side at the end away from the force-bearing inclined block, and an inner sliding rod is fixedly installed inside the vertical sliding groove. A sliding hole block that is movably located inside the vertical sliding groove is slidably sleeved on the outside of the inner sliding rod.

3. A multi-range adjustable pressure transmitter according to claim 2, characterized in that, A return spring is fitted between the sliding block and the vertical locking rod, and the return spring is sleeved on the outside of the inner sliding rod. An assembly frame is fixedly mounted on the outer side of the sliding block, and the assembly frame is fixedly installed on the outer wall of the flipping inner cylinder.

4. A multi-range adjustable pressure transmitter according to claim 1, characterized in that, The inner cylinder of the assembly is sealed to hold silicone oil, and the bottom of the inner cylinder is sealed and movable with a silicone oil plate. The inner wall of the assembly inner cylinder is movably provided with an inner slider at the position corresponding to the deformation transmission structure. The bottom of the inner cylinder is fixed with an assembly ring, and the inner side of the assembly ring is provided with an assembly bolt for spiral locking.

5. A multi-range adjustable pressure transmitter according to claim 1, characterized in that, The multi-range adjustment structure is an assembly inner frame that is fixedly installed on the inner wall of the assembly inner cylinder. A pressure plate is symmetrically and movable along the middle of the inner side of the assembly inner frame. A rotating shaft is rotatably installed on the outer surface of the pressure plate. An adjusting spring is fitted to one end of the outer side of the rotating shaft, and a screw is fitted to the end of the adjusting spring away from the rotating shaft.

6. A multi-range adjustable pressure transmitter according to claim 5, characterized in that, The inner wall of the assembly frame is provided with internal threads, and the screw shaft is spirally arranged in the internal threads of the assembly frame. The end of the screw shaft away from the adjusting spring is connected to a servo motor, and a vertical rail frame is fixed to the outside of the servo motor. The vertical rail frame is slidably set inside the assembly frame.

7. A multi-range adjustable pressure transmitter according to claim 1, characterized in that, A deformation probe is fixed to one end of the inclined bottom of the inclined pressure plate, and a deformation probe rod is closely attached between the bottom of the deformation probe and the single crystal silicon wafer.

8. A multi-range adjustable pressure transmitter according to claim 7, characterized in that, Both ends of the enclosed inner frame are equipped with oil-proof flexible rubber plates, and the gap between the flexible rubber plate and the inclined pressure plate at the lower end of the enclosed inner frame and the enclosed inner frame is sealed. Both the vertical pressure plate and the enclosed inner frame are equipped with electrically conductive plates that come into contact with each other. When the angle of the vertical pressure plate changes, the electrical contact plate on the vertical pressure plate separates from the electrical contact plate on the enclosed inner frame.

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