Ultrasonic level meter calibration device

Abstract

The utility model relates to an ultrasonic level meter calibration device, characterized in that: a plurality of mounting slots are provided on the front of the mainboard, a telescopic rod mechanism and a guide rod are fixed on the front of the mainboard, two symmetrical support rods are provided on the telescopic rod mechanism, and a locker is fixedly installed on the end of the support rod; a group of fixed plates are respectively provided on the left and right sides of the lower front of the mainboard, a rotating rod is fixed between each group of the fixed plates, a rotating plate is sleeved on the rotating rod, a rotating shaft is rotatably installed between the ends of the two rotating plates, a connecting plate is rotatably installed on the rotating shaft, a transmission rod is rotatably installed on the end of the connecting plate, and the two ends of the transmission rod are rotatably connected to the support rods respectively; a first spring is sleeved on the guide rod, one end of the first spring is fixed to the mainboard, and the other end is fixed to the rotating plate. When measuring different positions in a certain area, there is no need for frequent installation, which reduces the working steps, improves the working efficiency, and improves the measurement accuracy.

Description

Technical Field

[0001] The utility model belongs to the technical field of measurement and calibration, and specifically relates to an ultrasonic level meter calibration device. Background Art

[0002] The ultrasonic level meter is a digital level meter controlled by a microprocessor. During the measurement, ultrasonic pulses are emitted by the sensor, and the sound waves are received by the same sensor after being reflected by the liquid surface. The central control processor multiplies half of the time between the emission and reception of the sound wave by the speed of ultrasonic wave propagation in the air to calculate the distance from the sensor to the surface of the measured liquid. The ultrasonic level meter adopts non-contact measurement, and the measured medium is almost unrestricted. It is widely used to measure the height of various liquids and solid materials.

[0003] When the existing ultrasonic level meter is used to measure different positions in a certain area, it is necessary to repeatedly install and disassemble the ultrasonic level meter at different positions. The working steps are relatively cumbersome. When fixing the ultrasonic level meter, in some situations with strong winds, the level meter is prone to shaking, resulting in inaccurate measurement and low work efficiency. Utility Model Content

[0004] The purpose of the utility model is to solve the above technical problems and provide an ultrasonic level meter calibration device.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an ultrasonic level meter calibration device, including a main board, characterized in that: a plurality of mounting grooves are opened on the front side of the main board, a telescopic rod mechanism and a guide rod are fixed on the front side of the main board, the guide rod is located above the telescopic rod mechanism, two symmetrical support rods are arranged on the telescopic rod mechanism, and the ends of the support rods are fixedly installed with lockers; a group of fixed plates are respectively arranged on the left and right sides of the lower front side of the main board, and the left group of fixed plates and the right group of fixed plates are symmetrically distributed along the center line of the main board, a rotating rod is fixed between each group of the fixed plates, a rotating plate is sleeved on the rotating rod, a rotating shaft is rotatably installed between the ends of the two rotating plates, a connecting plate is rotatably installed on the rotating shaft, a transmission rod is rotatably installed on the ends of the connecting plate, and the two ends of the transmission rod are rotatably connected to the support rods respectively; a first spring is sleeved on the guide rod, one end of the first spring is fixed to the main board, and the other end is fixed to the rotating plate.

[0006] The telescopic rod mechanism includes two symmetrical main bodies, each of which has a moving groove inside, a driving gear and a driven gear meshing therewith arranged inside the moving groove, and the output shaft of the motor arranged outside the main board is connected to the driving gear; a screw is fixedly installed on the driven gear, a bearing and a moving plate are sleeved on the screw, the bearing and the moving plate are horizontally arranged along the axial direction of the screw and spaced a certain distance apart, and the bearing is supported by a support plate; a sliding groove is arranged on the inner wall of the moving groove, a slide plate is arranged in the sliding groove, the slide plate is fixed to the moving plate, and the end of the moving plate fixes the support rod. The slide plate and the sliding groove support the support rod without affecting the movement of the moving plate.

[0007] The locker includes a circular ring body formed by connecting two arc-shaped mounting plates, an arc-shaped connecting shaft is fixed between the ends of the two arc-shaped mounting plates, a control rod is sleeved on the arc-shaped connecting shaft perpendicular to its direction, the control rod rotates around the arc-shaped connecting shaft, the upper end of the control rod is fixed with an arc-shaped top plate, and the lower end is fixed with an arc-shaped guard plate; a second spring is sleeved on the arc-shaped connecting shaft, and a baffle is provided on the end surface of the arc-shaped mounting plate, and the two ends of the second spring are respectively abutted against the baffle.

[0008] The inner wall of the arc-shaped top plate is provided with a buffer pad made of rubber material.

[0009] The advantages of the utility model are that a telescopic rod mechanism and a lock are designed, and the telescopic rod mechanism drives the ultrasonic level meter in the lock to translate by telescoping, so that when measuring different positions in a certain area, there is no need for frequent installation, which reduces work steps and improves work efficiency; the arc-shaped guard plate in the lock pushes the control rod to rotate, driving the arc-shaped top plate to fix the ultrasonic level meter, and in some areas with strong winds, the ultrasonic level meter remains stable in the equipment, thereby improving measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0011] Figure 2 It is a three-dimensional structural schematic diagram of another viewing angle of the utility model;

[0012] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0013] Figure 4 for Figure 1 Enlarged view of middle part B;

[0014] Figure 5 This is a schematic diagram of the telescopic rod mechanism of the utility model;

[0015] Figure 6 for Figure 5 Enlarged view of middle C;

[0016] In the figure: 1. main board; 2. mounting groove; 3. guide rod; 4. telescopic rod mechanism; 5. lock; 6. fixed plate; 7. rotating rod; 8. rotating plate; 9. rotating shaft; 10. connecting plate; 11. transmission rod; 12. main body; 13. moving groove; 14. driving gear; 15. driven gear; 16. screw rod; 17. bearing; 18. moving plate; 19. support plate; 20. slide groove; 21. slide plate; 22. support rod; 23. arc-shaped mounting plate; 24. arc-shaped connecting shaft; 25. control rod; 26. arc-shaped top plate; 27. arc-shaped guard plate; 28. buffer pad; 29. ​​motor; 30. first spring; 31. baffle; 32. second spring. DETAILED DESCRIPTION

[0017] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0018] See Figure 1-6 , an ultrasonic level meter calibration device, comprising a main board 1, characterized in that: a plurality of mounting slots 2 are provided on the front of the main board 1, a telescopic rod mechanism 4 and a guide rod 3 are fixed on the front of the main board 1, the guide rod 3 is located above the telescopic rod mechanism 4, the telescopic rod mechanism 4 is provided with two symmetrical support rods 22, and the ends of the support rods 22 are fixedly installed with a locker 5; a group of fixed plates 6 are respectively provided on the left and right sides of the lower front of the main board 1, and the left group of fixed plates 6 and the right group are symmetrically distributed along the center line of the main board 1, and a rotating rod 7 is fixed between each group of the fixed plates 6, and a rotating plate 8 is sleeved on the rotating rod 7, and a rotating shaft 9 is rotatably installed between the ends of the two rotating plates 8, and a connecting plate 10 is rotatably installed on the rotating shaft 9, and a transmission rod 11 is vertically rotatably installed at the end of the connecting plate 10, and the two ends of the transmission rod 11 are respectively rotatably connected with the two support rods 22; a first spring 30 is sleeved on the guide rod 3, one end of the first spring 30 is fixed to the main board 1, and the other end is fixed to the rotating plate 8.

[0019] The telescopic rod mechanism 4 includes two symmetrical main bodies 12, and the interiors of the two main bodies 12 are provided with a moving groove 13. The interiors of the moving groove 13 are provided with a driving gear 14 and a driven gear 15 meshing therewith. The output shaft of the motor 29 arranged on the outer side of the main board 1 is connected to the driving gear 14; a screw rod 16 is fixedly installed on the driven gear 15, and a bearing 17 and a moving plate 18 are sleeved on the screw rod 16. The bearing 17 and the moving plate 18 are horizontally arranged along the axial direction of the screw rod 16 and are spaced a certain distance apart, and the bearing 17 is supported by a support plate 19; a slide groove 20 is provided on the inner wall of the moving groove 13, and a slide plate 21 is provided in the slide groove 20. The slide plate 21 is fixed to the moving plate 18, and a support rod 22 is fixed to the end of the moving plate 18. The slide plate 21 and the slide groove 20 support the support rod 22 without affecting the movement of the moving plate 18.

[0020] The locker 5 comprises a circular ring body formed by two arc-shaped mounting plates 23 connected together, an arc-shaped connecting shaft 24 is fixed between the ends of the two arc-shaped mounting plates 23, a control rod 25 is sleeved on the arc-shaped connecting shaft 24 perpendicular to the direction thereof, the control rod 25 rotates around the arc-shaped connecting shaft 24, an arc-shaped top plate 26 is fixed on the upper end of the control rod 25, and an arc-shaped guard plate 27 is fixed on the lower end; a second spring 32 is sleeved on the arc-shaped connecting shaft 24, a baffle 31 is provided on the end surface of the arc-shaped mounting plate 23, and the two ends of the second spring 32 are respectively in contact with the baffle 31. A buffer pad 28 made of rubber is provided on the inner wall of the arc-shaped top plate 26.

[0021] Working process: install the bolt into the installation groove 2 to fix the main board 1 in a certain position, put the ultrasonic level meter into the locker 5, because the ultrasonic level meter pushes the arc guard plate 27 downward due to gravity, the arc guard plate 27 drives the upper arc top plate 26 to rotate through the control rod 25, so that the ultrasonic level meter is fixed in the locker 5; the motor 29 drives the driving gear 14 to rotate, the driving gear 14 drives the screw rod 16 on the driven gear 15 to rotate, the screw rod 16 drives the moving plate 18 to move along the axial direction of the screw rod 16, thereby driving the support rod 22 to move, and the support rod 22 drives the transmission rod 11 , the connecting plate 10 and the rotating plate 8 are simultaneously offset and moved backward. When the telescopic rod mechanism 4 stops extending and retracting, the connecting plate 10 and the rotating plate 8 are in a collinear state, and the connecting plate 10 and the rotating plate 8 support the support rod; when the detection is completed, the motor 29 drives the active gear 14 to reverse, the support rod 22 contracts and drives the transmission rod 11 to move, and the first spring 30 contracts to drive the rotating plate 8 and the connecting plate 10 out of the collinear state, so that the telescopic rod mechanism 4 contracts smoothly; take out the ultrasonic liquid level meter, and the second spring 32 pushes the baffle 31 to reset the arc guard plate 27 and the arc top plate 26.

[0022] 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 the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An ultrasonic level meter calibration device, comprising a main board (1), characterized in that: The front of the main board (1) is provided with a plurality of mounting slots (2); a telescopic rod mechanism (4) and a guide rod (3) are fixed to the front of the main board (1); the guide rod (3) is located above the telescopic rod mechanism (4); two symmetrical support rods (22) are provided on the telescopic rod mechanism (4); a locking device (5) is fixedly installed at the end of each support rod (22); a group of fixing plates (6) are respectively provided on the left and right sides of the lower front of the main board (1); the left group of fixing plates (6) and the right group of fixing plates (6) are symmetrically distributed along the center line of the main board (1); each group of fixing plates (6) is provided with a plurality of fixing plates (6) on the left and the right sides thereof; A rotating rod (7) is fixed between the fixed plates (6), a rotating plate (8) is sleeved on the rotating rod (7), a rotating shaft (9) is rotatably mounted between the ends of the two rotating plates (8), a connecting plate (10) is rotatably mounted on the rotating shaft (9), a transmission rod (11) is rotatably mounted on the end of the connecting plate (10), and both ends of the transmission rod (11) are rotatably connected to the support rod (22) respectively; a first spring (30) is sleeved on the guide rod (3), one end of the first spring (30) is fixed to the main plate (1), and the other end is fixed to the rotating plate (8).

2. The ultrasonic level meter calibration device according to claim 1, characterized in that: The telescopic rod mechanism (4) comprises two symmetrical main bodies (12), each of which has a moving groove (13) formed therein, a driving gear (14) and a driven gear (15) meshing therewith provided inside the moving groove (13), and an output shaft of a motor (29) provided outside the main body (1) being connected to the driving gear (14); a screw rod (16) being fixedly mounted on the driven gear (15), a bearing (17) and a moving plate (18) being sleeved on the screw rod (16), the bearing (17) and the moving plate (18) being arranged horizontally along the axial direction of the screw rod (16) and spaced a certain distance apart, and the bearing (17) being supported by a support plate (19); a sliding groove (20) being formed on the inner wall of the moving groove (13), a slide plate (21) being provided inside the sliding groove (20), the slide plate (21) being fixed to the moving plate (18), and a support rod (22) being fixed to the end of the moving plate (18).

3. The ultrasonic level meter calibration device according to claim 1, characterized in that: The locking device (5) comprises a circular ring body formed by butting two arc-shaped mounting plates (23); an arc-shaped connecting shaft (24) is fixed between the ends of the two arc-shaped mounting plates (23); a control rod (25) is sleeved on the arc-shaped connecting shaft (24) perpendicular to the arc-shaped connecting shaft (24); the control rod (25) can rotate around the arc-shaped connecting shaft (24); an arc-shaped top plate (26) is fixed at the upper end of the control rod (25); and an arc-shaped guard plate (27) is fixed at the lower end; a second spring (32) is sleeved on the arc-shaped connecting shaft (24); a baffle (31) is provided on the end surface of the arc-shaped mounting plate (23); and two ends of the second spring (32) are respectively in contact with the baffle (31).

4. The ultrasonic level meter calibration device according to claim 3, characterized in that: The inner wall of the arc-shaped top plate (26) is provided with a buffer pad (28) made of rubber material.

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