Pressure sensor batch calibration equipment

Abstract

The utility model relates to the technical field of pressure sensors, in particular to batch calibration equipment for pressure sensors. Comprising a supporting table, and solves the problems that in the prior art, when calibration equipment carries out calibration processing on a pressure sensor, a calibration head is generally needed, but after the calibration head is used for a long time, the precision is inevitably reduced or damaged, and if the calibration head is not disassembled, overhauled or replaced at the moment, the calibration head cannot be disassembled, overhauled or replaced. In the prior art, the calibration head and the calibration equipment are fixed or dismounted through bolts when the calibration head is mounted and dismounted, but the mounting and dismounting processes are time-consuming and labor-consuming, so that the calibration head cannot effectively perform calibration processing on the pressure sensor, and the calibration head and the calibration equipment are fixed or dismounted through bolts when the calibration head is mounted and dismounted in the prior art. Therefore, the installation and disassembly efficiency of the calibration head is reduced, and the calibration efficiency of the calibration device on the pressure sensor is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure sensors, in particular to a batch calibration device for pressure sensors. Background Art

[0002] Pressure sensors are devices or apparatuses that can sense pressure signals and convert them into usable output electrical signals according to certain rules. They are widely used in various industrial automatic control environments, involving water conservancy and hydropower, railway transportation, intelligent buildings, production automatic control, aerospace, military industry, petrochemicals, oil wells, electricity, ships, machine tools, pipelines and many other industries. When calibrating pressure sensors, a pressure sensor batch calibration device is required.

[0003] The calibration equipment in the prior art generally requires the use of a calibration head when calibrating the pressure sensor. However, after long-term use, the calibration head will inevitably experience a decrease in accuracy or damage. At this time, if the calibration head is not disassembled for inspection or replacement, the calibration head will not be able to effectively calibrate the pressure sensor. When installing and disassembling the calibration head, the calibration equipment in the prior art uses bolts to fix or disassemble the calibration head and the calibration equipment. Although this method can also effectively install and disassemble the calibration head, the installation and disassembly process is relatively time-consuming and labor-intensive, which will reduce the installation and disassembly efficiency of the calibration head, and further affect the calibration efficiency of the calibration equipment for the pressure sensor.

[0004] Compared with the Chinese patent with announcement number CN219224026U, the utility model discloses a batch calibration device for pressure sensors, including a calibration base and a support frame installed on both sides of the top of the calibration base, a hydraulic cylinder is installed on the top of the support frame, the output end of the hydraulic cylinder is connected to a pressure calibration mechanism extending to the bottom thereof, and an infrared sensing probe installed at the top center of the calibration base is arranged directly below the pressure calibration mechanism; the batch calibration device for pressure sensors can install and position the pressure sensors for calibration detection to ensure that they will not be offset during subsequent calibration detection, and at the same time, when the detection of one group of pressure sensors is completed and the next group of pressure sensors is detected, the disassembly of the previous group of pressure sensors and the calibration detection of the next group of pressure sensors can be carried out simultaneously, thereby improving the efficiency of the calibration detection of the pressure sensors and realizing the batch calibration device detection of the pressure sensors.

[0005] The above scheme can very conveniently improve the efficiency of the calibration equipment in calibrating and testing the pressure sensor, thereby realizing batch calibration processing of the pressure sensor. However, when installing and disassembling the calibration head, the calibration head is still installed and disassembled by bolts, which fails to solve the problems raised in the above background technology. Utility Model Content

[0006] The purpose of the utility model is to provide a batch calibration device for pressure sensors, including a support table and:

[0007] An operating device fixedly connected to the upper surface of the support platform;

[0008] A drive box is fixedly connected to the upper surface of the support platform, and a mounting plate is fixedly connected to the upper surface of the drive box;

[0009] A plurality of fixing components are arranged on the upper surface of the mounting plate and used for fixing the sensor body;

[0010] A calibration head, located above the mounting plate;

[0011] The mounting assembly is located above the calibration head and is used for mounting and disassembling the calibration head, thereby facilitating the staff to disassemble, repair or replace the calibration head.

[0012] As a further improvement of the present technical solution, the inner bottom end of the drive box is fixedly connected to a drive motor, the output shaft of the drive motor is fixedly connected to a drive rod through a coupling, the outside of the drive rod is fixedly connected to a first bevel gear, the inner bottom end of the drive box is rotatably connected to a rotating rod, the outside of the rotating rod is fixedly connected to a second bevel gear meshing with the first bevel gear, and the top end of the rotating rod extends to the outside of the mounting plate and is fixedly connected to a rotating plate.

[0013] As a further improvement of the present technical solution, an adjusting plate is fixedly connected to the upper surface of the rotating plate, a reciprocating motor is fixedly connected to the upper surface of the adjusting plate, an output shaft of the reciprocating motor is fixedly connected to a threaded rod via a coupling, the bottom end of the threaded rod is rotatably connected to the inner bottom end of the adjusting plate, the outer thread of the threaded rod is connected to a threaded block, and a guide groove for the movement of the threaded block is provided on the front end surface of the adjusting plate.

[0014] The top end of the fixing plate is fixedly provided with a fixing plate, and the fixing plate is fixedly provided with a fixing groove at the bottom end of the fixing sleeve for allowing the fixing sleeve to move. The bottom end of the fixing sleeve is fixedly connected to the upper surface of the calibration head and is fixedly connected to the upper surface of the calibration head. The interior of the connecting plate is symmetrically provided with sliding rods, and the two ends of the sliding rods are respectively fixedly connected to the front and rear inner walls of the connecting plate. The interior of the connecting plate is provided with a movable plate, and the interior of the movable plate is provided with a return spring, and the two return springs both abut against the movable plate and the connecting plate. The exterior of the movable plate is fixedly connected with a connecting rod, and the other end of the connecting rod extends to the exterior of the connecting plate and is fixedly connected with an L-shaped plate. The exterior of the L-shaped plate is fixedly connected with a pull ring, and the interiors of the installing sleeve and the fixing sleeve are provided with guide grooves for allowing the L-shaped plate to move.

[0015] As a further improvement of the present technical solution, the fixing assembly includes a plurality of positioning frames fixedly connected to the upper surface of the mounting plate, guide grooves for the movement of the fixing rods are symmetrically provided on both sides of the outer wall of the positioning frame, one end of each two of the fixing rods is fixedly connected to a clamping plate, and the other end of each two of the fixing rods is fixedly connected to a pull plate, and the outside of the plurality of fixing rods is sleeved with a resistance spring, and the plurality of resistance springs are in resistance between the clamping plate and the positioning frame.

[0016] As a further improvement of the technical solution, a placement box is fixedly connected to the bottom of the support table, placement drawers are symmetrically arranged inside the placement box, and an anti-slip pad is bonded to the bottom of the placement box.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] In this pressure sensor batch calibration equipment, by setting up a fixing component and a mounting component, when it is necessary to calibrate the sensor body, it is only necessary to first fix the sensor body on the upper surface of the mounting plate through the fixing component. At this time, it can effectively prevent the sensor body from being displaced during the calibration process, thereby affecting the calibration effect. When the sensor body is fixed, the staff operates the device as a whole through the operating equipment. At this time, the sensor body can be effectively calibrated and tested through the calibration head. When the calibration head needs to be installed and disassembled, it is only necessary to use the mounting component to conveniently install and disassemble the calibration head, thereby facilitating the staff to inspect and replace the calibration head, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the storage drawer after opening in the utility model;

[0021] Figure 3 It is a cutaway three-dimensional structural schematic diagram of the drive box in the utility model;

[0022] Figure 4 It is a schematic diagram of the cutaway three-dimensional structure of the adjustment plate in the utility model;

[0023] Figure 5 It is a schematic diagram of the cutaway three-dimensional structure of the connecting plate in the utility model;

[0024] Figure 6 for Figure 3 Schematic diagram of the enlarged structure of the A area in the middle;

[0025] Figure 7 for Figure 4 Schematic diagram of the enlarged structure of the middle B area;

[0026] Figure 8 for Figure 5 Schematic diagram of the enlarged structure of the C area in the middle.

[0027] The meaning of each number in the figure is:

[0028] 1. Support table; 2. Operating equipment; 3. Drive box; 4. Mounting plate; 5. Adjustment plate; 6. Reciprocating motor; 7. Connecting plate; 8. Calibration head; 9. Positioning frame; 10. Placement box; 11. Placement drawer; 12. Rotating plate; 13. Sensor body; 14. Threaded rod; 15. Threaded block; 16. Drive motor; 17. Drive rod; 18. First bevel gear; 19. Second bevel gear; 20. Rotating rod; 21. Fixed rod; 22. Clamping plate; 23. Resistance spring; 24. Sliding rod; 25. Reset spring; 26. Moving plate; 27. Connecting rod; 28. L-shaped plate; 29. ​​Mounting sleeve; 30. Fixed cylinder. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1 - Figure 8 As shown, this embodiment provides a pressure sensor batch calibration device, including a support table 1, and also includes:

[0031] The operating device 2 is fixedly connected to the upper surface of the support platform 1;

[0032] A drive box 3 is fixedly connected to the upper surface of the support platform 1, and a mounting plate 4 is fixedly connected to the upper surface of the drive box 3;

[0033] A plurality of fixing components are arranged on the upper surface of the mounting plate 4 and are used to fix the sensor body 13;

[0034] A calibration head 8, located above the mounting plate 4;

[0035] The installation assembly is located above the calibration head 8 and is used to install and disassemble the calibration head 8, thereby making it convenient for staff to disassemble, repair or replace the calibration head 8.

[0036] The above working principle: when the sensor body 13 needs to be calibrated, it is only necessary to first fix the sensor body 13 on the upper surface of the mounting plate 4 through the fixing assembly. At this time, the sensor body 13 can be effectively prevented from being displaced during the calibration process, thereby affecting the calibration effect. After the sensor body 13 is fixed, the staff operates the device as a whole through the operating equipment 2. At this time, the sensor body 13 can be effectively calibrated and detected through the calibration head 8. When the calibration head 8 needs to be installed and disassembled, it is only necessary to use the installation assembly to conveniently install and disassemble the calibration head 8, thereby facilitating the staff to inspect and replace the calibration head 8, saving time and effort.

[0037] In order to effectively rotate the calibration head 8 so that the calibration head 8 can effectively perform batch calibration processing on the sensor body 13, the inner bottom end of the drive box 3 is fixedly connected to a drive motor 16, the output shaft of the drive motor 16 is fixedly connected to a drive rod 17 through a coupling, the outside of the drive rod 17 is fixedly connected to a first bevel gear 18, the inner bottom end of the drive box 3 is rotatably connected to a rotating rod 20, the outside of the rotating rod 20 is fixedly connected to a second bevel gear 19 meshing with the first bevel gear 18, the top end of the rotating rod 20 extends to the outside of the mounting plate 4 and is fixedly connected to the rotating plate 12, when the calibration head 8 needs to be rotated When the rotation process is performed, the driving motor 16 starts to run, driving the driving rod 17 to rotate synchronously, the driving rod 17 drives the first bevel gear 18 to rotate synchronously, the first bevel gear 18 drives the second bevel gear 19 to rotate synchronously, the second bevel gear 19 drives the rotating rod 20 to rotate synchronously, the rotating rod 20 drives the rotating plate 12 to rotate synchronously, and the rotating plate 12 drives the calibration head 8 to rotate synchronously. At this time, the upper group of sensor bodies 13 can be disassembled, and the next group of sensor bodies 13 can be effectively calibrated and detected, thereby achieving the purpose of batch calibration of the sensor bodies 13.

[0038] Taking into account that the height position of the calibration head 8 needs to be adjusted when the sensor body 13 is calibrated and tested, the upper surface of the rotating plate 12 is fixedly connected to the adjusting plate 5, and the upper surface of the adjusting plate 5 is fixedly connected to the reciprocating motor 6. The output shaft of the reciprocating motor 6 is fixedly connected to the threaded rod 14 through a coupling. The bottom end of the threaded rod 14 is rotatably connected to the inner bottom end of the adjusting plate 5, and the external thread of the threaded rod 14 is connected to the threaded block 15. The front end surface of the adjusting plate 5 is provided with a guide groove for the threaded block 15 to move. When the sensor body 13 needs to be calibrated and tested, the reciprocating motor 6 starts to run, driving the threaded rod 14 to rotate synchronously. At this time, the threaded block 15 will move synchronously on the outside of the threaded rod 14, driving the calibration head 8 to move synchronously. At this time, the calibration head 8 can effectively calibrate and test the sensor body 13.

[0039] In order to conveniently disassemble and install the calibration head 8, the installation component includes a connecting plate 7 fixedly connected to the front end surface of the threaded block 15, the bottom of the connecting plate 7 is fixedly connected with a mounting sleeve 29, the bottom of the mounting sleeve 29 is provided with a guide groove for the movement of the fixed cylinder 30, the bottom of the fixed cylinder 30 is fixedly connected to the upper surface of the calibration head 8, the interior of the connecting plate 7 is symmetrically provided with sliding rods 24, the two ends of the two sliding rods 24 are respectively fixedly connected to the front and rear inner walls of the connecting plate 7, the interior of the connecting plate 7 is provided with a movable plate 26, the interior of the movable plate 26 is provided with a guide groove for the movement of the sliding rod 24, the outside of the two sliding rods 24 are both sleeved with return springs 25, the two return springs 25 both abut between the movable plate 26 and the connecting plate 7, the outside of the movable plate 26 is fixedly connected with a connecting rod 27, the other end of the connecting rod 27 extends to the outside of the connecting plate 7 and is fixedly connected with an L-shaped plate 28, the outside of the L-shaped plate 28 is fixedly connected with a pull ring, the interiors of the mounting sleeve 29 and the fixed cylinder 30 are provided with guide grooves for the movement of the L-shaped plate 28, when it is necessary to When the calibration head 8 is to be disassembled, it is only necessary to pull the pull ring, at which time the pull ring will drive the L-shaped plate 28 to move synchronously, the L-shaped plate 28 will drive the connecting rod 27 to move synchronously, and the connecting rod 27 will drive the movable plate 26 to move synchronously outside the slide bar 24. During the movement of the movable plate 26, the reset spring 25 will be squeezed. When the L-shaped plate 28 is separated from the guide groove inside the mounting sleeve 29 and the fixed cylinder 30, the fixed cylinder 30 can be pulled out of the guide groove at the bottom of the mounting sleeve 29, and the calibration head 8 can be disassembled. The calibration head 8 is disassembled. When the calibration head 8 needs to be installed, it is only necessary to first insert the fixing tube 30 into the guide groove at the bottom of the mounting sleeve 29, and then loosen the pull ring. At this time, the reset spring 25 is reset, driving the movable plate 26 to move synchronously, and the movable plate 26 then drives the connecting rod 27 and the L-shaped plate 28 to move synchronously. When the L-shaped plate 28 is inserted into the guide grooves inside the mounting sleeve 29 and the fixing tube 30, the mounting sleeve 29 and the fixing tube 30 can be fixed, and the calibration head 8 can be installed at this time.

[0040] In order to effectively fix the sensor body 13, the fixing assembly includes a plurality of positioning frames 9 fixedly connected to the upper surface of the mounting plate 4. Both sides of the outer wall of the positioning frame 9 are symmetrically provided with guide grooves for the movement of the fixing rods 21. One end of each of the two fixing rods 21 is fixedly connected to a clamping plate 22, and the other end of each of the two fixing rods 21 is fixedly connected to a pull plate. The outer parts of the plurality of fixing rods 21 are sleeved with a resistance spring 23, and the plurality of resistance springs 23 are in resistance between the clamping plate 22 and the positioning frame 9. When the sensor body 13 needs to be fixed, it is only necessary to pull the pull plate first, and the pull plate will drive the fixing rod 21. The fixing rod 21 then drives the clamping plate 22 to move synchronously. During the movement of the clamping plate 22, the resistance spring 23 is squeezed. At this time, the sensor body 13 is placed inside the positioning frame 9, and the pull plate is released. At this time, the resistance spring 23 is reset, driving the clamping plate 22 to move synchronously. When the clamping plate 22 contacts the outside of the sensor body 13, the clamping plate 22 can be used to fix and clamp the sensor body 13, thereby preventing the sensor body 13 from being displaced during the calibration and detection process, thereby affecting the calibration and detection effect of the sensor body 13.

[0041] In addition, in order to effectively collect and process the sensor bodies 13 that need to be calibrated and tested and the sensor bodies 13 that have completed the calibration and testing, a placement box 10 is fixedly connected to the bottom of the support table 1, and placement drawers 11 are symmetrically arranged inside the placement box 10. An anti-slip pad is bonded to the bottom of the placement box 10. The staff can put the sensor bodies 13 that need to be calibrated and tested into one of the placement drawers 11, and put the sensor bodies 13 that have completed the calibration and testing into the other placement drawer 11. At this time, the sensor bodies 13 can be classified and collected, and the anti-slip pad at the bottom of the placement box 10 can effectively prevent the device from being displaced during operation, causing unnecessary trouble.

[0042] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A pressure sensor batch calibration device, comprising a support table (1), characterized in that: Also includes: An operating device (2) fixedly connected to the upper surface of the support platform (1); A drive box (3) is fixedly connected to the upper surface of the support platform (1), and a mounting plate (4) is fixedly connected to the upper surface of the drive box (3); A plurality of fixing components, all arranged on the upper surface of the mounting plate (4) and used to fix the sensor body (13); A calibration head (8) located above the mounting plate (4); The mounting assembly is located above the calibration head (8) and is used to mount and dismantle the calibration head (8), thereby facilitating the staff to dismantle, repair or replace the calibration head (8).

2. The pressure sensor batch calibration equipment according to claim 1, characterized in that: The inner bottom end of the drive box (3) is fixedly connected to a drive motor (16); the output shaft of the drive motor (16) is fixedly connected to a drive rod (17) via a coupling; the outside of the drive rod (17) is fixedly connected to a first bevel gear (18); the inner bottom end of the drive box (3) is rotatably connected to a rotating rod (20); the outside of the rotating rod (20) is fixedly connected to a second bevel gear (19) meshing with the first bevel gear (18); the top end of the rotating rod (20) extends to the outside of the mounting plate (4) and is fixedly connected to the rotating plate (12).

3. The pressure sensor batch calibration equipment according to claim 2, characterized in that: The upper surface of the rotating plate (12) is fixedly connected to an adjusting plate (5), the upper surface of the adjusting plate (5) is fixedly connected to a reciprocating motor (6), the output shaft of the reciprocating motor (6) is fixedly connected to a threaded rod (14) via a coupling, the bottom end of the threaded rod (14) is rotatably connected to the inner bottom end of the adjusting plate (5), the outer thread of the threaded rod (14) is connected to a threaded block (15), and the front end surface of the adjusting plate (5) is provided with a guide groove for the threaded block (15) to move.

4. The pressure sensor batch calibration equipment according to claim 3, characterized in that: The mounting assembly comprises a connecting plate (7) fixedly connected to the front end surface of the threaded block (15); a mounting sleeve (29) is fixedly connected to the bottom of the connecting plate (7); a guide groove for the movement of a fixing sleeve (30) is provided at the bottom of the fixing sleeve (29); the bottom of the fixing sleeve (30) is fixedly connected to the upper surface of the calibration head (8); sliding rods (24) are symmetrically arranged inside the connecting plate (7); the two ends of the two sliding rods (24) are respectively fixedly connected to the front and rear inner walls of the connecting plate (7); a movable plate (26) is arranged inside the connecting plate (7); the movable plate (26) is A guide groove for the movement of the slide rod (24) is provided inside, and a return spring (25) is sleeved on the outside of the two slide rods (24). The two return springs (25) are both in contact between the movable plate (26) and the connecting plate (7). The outside of the movable plate (26) is fixedly connected with a connecting rod (27). The other end of the connecting rod (27) extends to the outside of the connecting plate (7) and is fixedly connected with an L-shaped plate (28). The outside of the L-shaped plate (28) is fixedly connected with a pull ring. The insides of the mounting sleeve (29) and the fixed sleeve (30) are both provided with a guide groove for the movement of the L-shaped plate (28).

5. The pressure sensor batch calibration equipment according to claim 1, characterized in that: The fixing assembly comprises a plurality of positioning frames (9) fixedly connected to the upper surface of the mounting plate (4); guide grooves for the movement of the fixing rods (21) are symmetrically provided on both sides of the outer wall of the positioning frame (9); one end of each two of the fixing rods (21) is fixedly connected to a clamping plate (22); the other end of each two of the fixing rods (21) is fixedly connected to a pulling plate; the outer sides of the plurality of fixing rods (21) are sleeved with a resisting spring (23); the plurality of resisting springs (23) are in contact between the clamping plate (22) and the positioning frame (9).

6. The pressure sensor batch calibration equipment according to claim 1, characterized in that: The bottom of the support platform (1) is fixedly connected to a storage box (10), the interior of the storage box (10) is symmetrically provided with storage drawers (11), and the bottom of the storage box (10) is bonded with an anti-slip pad.

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