A device and method for the verification and calibration of piezoelectric sensors

Abstract

The application discloses a kind of verification and calibration device and method of piezoelectric sensor, the device includes verification calibration body, operating block and plug, operating block is placed on verification calibration body, and insertion hole is provided on verification calibration body, plug can move along the axis direction of operating block, so as to be inserted into insertion hole or pulled out from insertion hole.The hollow knob is twisted after the threaded rod is placed in the corresponding assembly hole, the threaded sleeve is rotated on the rotating groove, and finally the threaded sleeve is rotated and moved on the threaded rod, so that the threaded sleeve and the limiting block clamp the assembly block, increase the stability of the threaded rod on the assembly block, the transmission screw is rotated in the threaded sleeve block by twisting the operating knob, and finally the limiting block drives the threaded rod to move to adjust the height of the plug, the insertion hole is clamped by the plug, so that the verification calibration body verifies and calibrates piezoelectric sensor, the stability of the plug is high, and the installation of the plug and the insertion hole can avoid loosening.

Description

Technical Field

[0001] This invention belongs to the field of calibration equipment technology, specifically relating to a device and method for the verification and calibration of a piezoelectric sensor. Background Technology

[0002] A piezoelectric sensor is a sensor based on the piezoelectric effect. Piezoelectric sensors are mainly used to measure force and non-electrical physical quantities that can be converted into electricity. Currently available verification and calibration devices for piezoelectric sensors, such as the device and method for verifying and calibrating a piezoelectric rain gauge disclosed in Chinese invention patent CN116299783A, have achieved rapid, convenient, and efficient verification and calibration of piezoelectric rain gauges in the field by simply fixing a vibration device to the piezoelectric panel of the rain gauge and remotely controlling the vibration motor to generate vibrations of different intensities, outputting simulated rainfall data. However, this patent still has the following problems:

[0003] During the connection between the sockets and the power plug in the device, prolonged plugging and unplugging can easily cause wear and tear on the sockets and plugs, leading to loosening during installation, poor contact in the device, and affecting the normal use of the verification and calibration device. Summary of the Invention

[0004] To address the problem in existing verification and calibration devices where prolonged insertion and removal of the sockets and plugs can cause wear and tear, leading to loosening during installation, poor contact, and affecting the normal operation of the device, this invention proposes a verification and calibration device and method for piezoelectric sensors.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A verification and calibration device for a piezoelectric sensor includes a verification and calibration body, an operating block, and a plug. The verification and calibration body is provided with a socket adapted to the plug, and the socket is located below the plug. The operating block is disposed on the verification and calibration body, and the plug is disposed on the operating block. The plug is movable along the extension direction of the operating block axis, thereby inserting into or pulling out of the socket.

[0007] Furthermore, the operating block is vertically mounted on the calibration body, and a rotating cavity is vertically arranged inside the operating block. A traction groove is provided on the side of the operating block, and the traction groove communicates with the rotating cavity. A transmission screw is movably mounted inside the rotating cavity, and a threaded sleeve is threaded onto the transmission screw. A sliding block that moves on the traction groove is fixedly mounted on the threaded sleeve. A limit block is fixedly mounted on the end of the sliding block away from the operating block, and a plug is provided on the limit block.

[0008] Furthermore, multiple threaded rods are fixedly mounted on the side of the limiting block, and the plug is movably connected to the limiting block through the threaded rods.

[0009] Furthermore, threaded rods are symmetrically arranged on opposite sides of the side of the limiting block away from the operating block. There are two threaded rods. Assembly blocks are symmetrically fixedly mounted on opposite sides of the top of the plug. There are two assembly blocks. Each assembly block has a through-hole. The assembly hole on each assembly block corresponds to a threaded rod for movable assembly.

[0010] Furthermore, a connecting wire is fixedly mounted on the top of the plug, and the connecting wire is located between the two assembly blocks.

[0011] Furthermore, the top end of the transmission screw passes through the operating block and is fixedly fitted with an operating knob. The operating knob is located above the operating block. When the operating knob is turned, it drives the transmission screw to rotate in the threaded sleeve block. The threaded sleeve block drives the sliding block to move vertically back and forth on the traction groove, which facilitates the limit block to drive the threaded rod to move vertically back and forth synchronously, thereby adjusting the height of the plug.

[0012] Furthermore, two sets of sliding rods are fixedly mounted on the side of the limiting block away from the operating block. The two sets of sliding rods are located between the two threaded rods and are symmetrically arranged. Each set of sliding rods consists of two rods. A limiting plate is fixedly mounted on one end of each set of two sliding rods. A moving block is movably mounted on each set of two sliding rods. The moving block is located between the limiting block and the limiting plate.

[0013] Furthermore, a rotating groove is formed through the movable block, and an installation cavity is provided inside the movable block. The installation cavity has multiple movable cavities. A connecting rod is fixedly mounted on the movable cavity, and a ball bearing is movably mounted on the connecting rod. A rotating ring is movably mounted on the installation cavity, and the rotating ring fits into the ball bearing. A connecting ring is fixedly mounted on the inner wall of the rotating ring, and the connecting ring movably extends into the rotating groove. A threaded sleeve is fixedly mounted on the inner wall of the connecting ring, and the threaded sleeve is located in the rotating groove.

[0014] Furthermore, a hollow knob is fixedly mounted on the end of the threaded sleeve away from the limiting block, and the hollow knob is connected to the threaded sleeve.

[0015] This invention also discloses a method for verifying and calibrating a piezoelectric sensor, comprising the following steps:

[0016] Place the threaded rod in the corresponding mounting hole and turn the hollow knob to make the threaded sleeve rotate on the rotating groove, and the rotating ring on the connecting ring rotates in the mounting cavity.

[0017] As the rotating ring rotates, the balls rotate in the connecting rod on the movable cavity, and the threaded sleeve rotates and moves on the threaded rod, so that the threaded sleeve and the limiting block clamp the assembly block, increasing the stability of the threaded rod on the assembly block.

[0018] Turning the operating knob causes the transmission screw to rotate in the threaded sleeve, which in turn causes the threaded sleeve to drive the sliding block to reciprocate on the traction groove. This facilitates the limit block to drive the threaded rod to reciprocate synchronously. Adjusting the height of the plug allows it to engage with the socket, enabling the calibration body to calibrate and verify the piezoelectric sensor.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] This invention discloses a device and method for the verification and calibration of a piezoelectric sensor. By placing a threaded rod in the corresponding mounting hole and turning a hollow knob, the threaded sleeve rotates on the rotating groove. The rotating ring on the connecting ring rotates in the mounting cavity. During rotation, the rotating ring causes the ball bearings to rotate within the connecting rod. The threaded sleeve rotates and moves on the threaded rod, causing one end of the threaded sleeve and the limiting block to clamp the mounting block, increasing the stability of the threaded rod on the mounting block. Turning the operating knob causes the transmission screw to rotate within the threaded sleeve block, allowing the threaded sleeve block to... The sliding block moves on the traction groove, facilitating the movement of the limit block and the threaded rod to adjust the height of the plug. The plug engages with the socket, enabling the calibration body to calibrate and verify piezoelectric sensors. The improved stability of the plug prevents loosening during installation, solving the problem that existing calibration devices often experience wear and tear on the plug and socket due to prolonged insertion and removal, leading to loosening during installation and affecting the use of the calibration device. The overall structure is ingeniously designed and suitable for industrial application. Attached Figure Description

[0021] Figure 1-2 These are three-dimensional structural schematic diagrams of the present invention;

[0022] Figure 3 This is a three-dimensional structural diagram of the operating block of the present invention;

[0023] Figure 4 This is a cross-sectional view of the movable block of the present invention;

[0024] Figure 5 This is a three-dimensional structural diagram of the slide bar and moving block of the present invention;

[0025] Figure 6 This is a three-dimensional structural diagram of the plug of the present invention;

[0026] In the diagram: 10. Calibration and verification body; 11. Socket; 12. Operating block; 13. Operating knob; 20. Plug; 21. Connecting wire; 22. Rotating cavity; 23. Traction groove; 30. Transmission screw; 31. Threaded sleeve block; 32. Sliding block; 33. Limiting block; 40. Assembly block; 41. Assembly hole; 42. Threaded rod; 43. Sliding rod; 50. Limiting plate; 51. Moving block; 52. Rotating groove; 53. Mounting cavity; 60. Movable cavity; 61. Connecting rod; 62. Ball bearing; 63. Rotating ring; 70. Connecting ring; 71. Threaded sleeve; 72. Hollow knob. Detailed Implementation

[0027] The present invention will now be described in detail so that its advantages and features can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention.

[0028] The following provides a brief overview of one or more aspects to offer a basic understanding of them. This overview is not an exhaustive summary of all conceived aspects, nor is it intended to identify key or decisive elements of all aspects, nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form to prepare for the more detailed descriptions that follow.

[0029] like Figure 1-6 As shown, a piezoelectric sensor verification and calibration device includes a verification and calibration body 10, an operating block 12, and a plug 20. The operating block 12 is vertically mounted on the verification and calibration body 10, and the plug 20 is mounted on the operating block 12. The verification and calibration body 10 has a socket 11 that is adapted to and can be engaged with the plug 20. The socket 11 is located below the plug 20. The plug 20 can reciprocate vertically along the operating block 12, thereby inserting into or pulling out of the socket 11. When the plug 20 is engaged with the socket 11, the verification and calibration body 10 can verify and calibrate the piezoelectric sensor. The stability of the plug 20 is improved, preventing loosening during the installation of the plug 20 and the socket 11.

[0030] In one specific implementation, a rotating cavity 22 is vertically arranged inside the operating block 12. A traction groove 23 communicating with the rotating cavity 22 is provided on the side of the operating block 12. A transmission screw 30 is installed inside the rotating cavity 22. The top end of the transmission screw 30 passes through the operating block 12 and an operating knob 13 is fixedly installed at the top end. The operating knob 13 is located above the operating block 12. A threaded sleeve 31 is threadedly installed on the transmission screw 30. A sliding block 32 that moves on the traction groove 23 is fixedly installed on the threaded sleeve 31. A limit block 33 is fixedly installed at the end of the sliding block 32 away from the operating block 12. A plurality of threaded rods 42 are provided on the limit block 33. Multiple assembly blocks 40 adapted to the threaded rod 42 are provided. Each assembly block 40 has a through-hole 41. The assembly hole 41 on each assembly block 40 corresponds to a threaded rod 42 for movable assembly. A connecting line 21 is fixedly mounted on the plug 20. The connecting line 21 is located between two assembly blocks 40. The assembly holes 41 in the two assembly blocks 40 on the plug 20 are assembled with the corresponding threaded rods 42. The operating knob 13 is turned so that the transmission screw 30 rotates in the threaded sleeve block 31. The threaded sleeve block 31 drives the sliding block 32 to move on the traction groove 23, which facilitates the movement of the threaded rod 42 by the limit block 33 to adjust the height of the plug 20.

[0031] The limiting block 33 is also provided with multiple sliding rods 43. The sliding rods 43 on the same side form a group. The sliding rods 43 are located between the threaded rods 42. One end of each group of sliding rods 43 is fixedly equipped with a limiting plate 50. Each group of sliding rods 43 is movably equipped with a moving block 51. The moving block 51 is located between the limiting block 33 and the limiting plate 50. A rotating groove 52 is provided through the moving block 51. An installation cavity 53 is provided inside the moving block 51. The installation cavity 53 is located outside the rotating groove 52. Each installation cavity 53 is provided with multiple movable cavities 60. A connecting rod 61 is fixedly equipped on the movable cavity 60. A ball bearing 62 is movably equipped on the connecting rod 61. A rotating ring 63 that fits with the ball bearing 62 is movably equipped on the installation cavity 53. A connecting ring 70 is fixedly equipped on the inner wall of the rotating ring 63. The threaded rod 42 is inserted into the rotating groove 52, and a threaded sleeve 71 located in the rotating groove 52 is fixedly mounted on the inner wall of the connecting ring 70. A hollow knob 72 communicating with the threaded sleeve 71 is fixedly mounted on one end of the threaded sleeve 71. After the threaded rod 42 is placed in the mounting hole 41 of the mounting block 40, the hollow knob 72 is turned, causing the threaded sleeve 71 to rotate on the rotating groove 52. The rotating ring 63 on the connecting ring 70 rotates in the mounting cavity 53. As the rotating ring 63 rotates, the ball 62 rotates in the connecting rod 61 on the movable cavity 60. The threaded sleeve 71 rotates and moves on the threaded rod 42, so that one end of the threaded sleeve 71 and the limiting block 33 clamp the mounting block 40, increasing the stability of the threaded rod 42 on the mounting block 40 and facilitating the movement of the plug 20.

[0032] A method for verifying and calibrating a piezoelectric sensor includes the following steps:

[0033] After placing the threaded rod 42 into the mounting hole 41 of the assembly block 40, the hollow knob 72 is turned, causing the threaded sleeve 71 to rotate on the rotating groove 52. The rotating ring 63 on the connecting ring 70 rotates in the mounting cavity 53. As the rotating ring 63 rotates, the ball 62 rotates in the connecting rod 61 on the movable cavity 60. The threaded sleeve 71 rotates and moves on the threaded rod 42, causing one end of the threaded sleeve 71 and the limiting block 33 to clamp the assembly block 40, increasing the position of the threaded rod 42 in the mounting block. To ensure stability of the mounting block 40, the operating knob 13 is turned, causing the transmission screw 30 to rotate in the threaded sleeve block 31. This allows the threaded sleeve block 31 to drive the sliding block 32 to move on the traction groove 23, facilitating the movement of the limit block 33 and the threaded rod 42. The height of the plug 20 is adjusted, and the plug 20 is engaged with the socket 11, enabling the calibration body 10 to calibrate and verify the piezoelectric sensor. The improved stability of the plug 20 prevents loosening during installation of the plug 20 and the socket 11.

[0034] Example 1

[0035] like Figure 1-6 As shown, a piezoelectric sensor verification and calibration device includes a verification and calibration body 10, an operating block 12, and a plug 20. The operating block 12 is vertically mounted on the verification and calibration body 10, and the plug 20 is mounted on the operating block 12. The verification and calibration body 10 has a socket 11 adapted to the plug 20, which is located below the plug 20. The plug 20 can reciprocate vertically along the operating block 12 to insert into or remove from the socket 11. The plug 20 engages with the socket 11, enabling the verification and calibration body 10 to verify and calibrate the piezoelectric sensor. The stability of the plug 20 is improved, preventing loosening during installation of the plug 20 and the socket 11.

[0036] The operating block 12 has a vertically arranged rotating cavity 22 inside. A traction groove 23 communicating with the rotating cavity 22 is provided on the side of the operating block 12. A transmission screw 30 is installed inside the rotating cavity 22. The top end of the transmission screw 30 passes through the operating block 12 and is fixedly mounted with an operating knob 13. The operating knob 13 is located above the operating block 12. A threaded sleeve 31 is threaded onto the transmission screw 30. A sliding block 32 that moves on the traction groove 23 is fixedly mounted on the threaded sleeve 31. A limit block 33 is fixedly mounted on the end of the sliding block 32 away from the operating block 12. Threaded rods 42 are symmetrically arranged on opposite sides of the limit block 33. The top of the plug 20... Assembly blocks 40 are symmetrically arranged on both sides of the plug 20. Each assembly block 40 has a through-hole 41. The assembly hole 41 on each assembly block 40 corresponds to a threaded rod 42 for movable assembly. A connecting line 21 is fixedly mounted on the top of the plug 20. The connecting line 21 is located between the two assembly blocks 40. The assembly holes 41 in the two assembly blocks 40 on the plug 20 are assembled with the corresponding threaded rods 42. The operating knob 13 is turned so that the transmission screw 30 rotates in the threaded sleeve block 31. The threaded sleeve block 31 drives the sliding block 32 to move on the traction groove 23, which facilitates the movement of the threaded rod 42 by the limit block 33, thereby adjusting the height of the plug 20.

[0037] On opposite sides of the limiting block 33, there are symmetrically arranged sliding rods 43. Each side has two sliding rods 43, forming a set. The two sets of sliding rods 43 are located between the two threaded rods 42. One end of each set of two sliding rods 43 is fixedly fitted with a limiting plate 50. A moving block 51 is movably fitted on each set of two sliding rods 43. The moving block 51 is located between the limiting block 33 and the limiting plate 50. A rotating groove 52 is provided through the moving block 51. An installation cavity 53 is provided inside the moving block 51. The installation cavity 53 is located outside the rotating groove 52. Multiple movable cavities 60 are provided on each of the installation cavities 53. A connecting rod 61 is fixedly fitted on the movable cavity 60. A ball bearing 62 is movably fitted on the connecting rod 61. A rotating ring 63 that fits with the ball bearing 62 is movably fitted on the installation cavity 53. A connecting rod is fixedly fitted on the inner wall of the rotating ring 63. The connecting ring 70 extends movably into the rotating groove 52, and a threaded sleeve 71 located in the rotating groove 52 is fixedly mounted on the inner wall of the connecting ring 70. A hollow knob 72 communicating with the threaded sleeve 71 is fixedly mounted on one end of the threaded sleeve 71. After the threaded rod 42 is placed in the mounting hole 41 of the mounting block 40, the hollow knob 72 is turned, causing the threaded sleeve 71 to rotate on the rotating groove 52. The rotating ring 63 on the connecting ring 70 rotates in the mounting cavity 53. As the rotating ring 63 rotates, the ball 62 rotates in the connecting rod 61 on the movable cavity 60. The threaded sleeve 71 rotates and moves on the threaded rod 42, so that one end of the threaded sleeve 71 and the limiting block 33 clamp the mounting block 40, increasing the stability of the threaded rod 42 on the mounting block 40 and facilitating the movement of the plug 20.

[0038] A method for verifying and calibrating a piezoelectric sensor includes the following steps:

[0039] After placing the threaded rod 42 into the mounting hole 41 of the assembly block 40, the hollow knob 72 is turned, causing the threaded sleeve 71 to rotate on the rotating groove 52. The rotating ring 63 on the connecting ring 70 rotates in the mounting cavity 53. As the rotating ring 63 rotates, the ball 62 rotates in the connecting rod 61 on the movable cavity 60. The threaded sleeve 71 rotates and moves on the threaded rod 42, causing one end of the threaded sleeve 71 and the limiting block 33 to clamp the assembly block 40, increasing the position of the threaded rod 42 in the mounting block. To ensure stability of the mounting block 40, the operating knob 13 is turned, causing the transmission screw 30 to rotate in the threaded sleeve block 31. This allows the threaded sleeve block 31 to drive the sliding block 32 to move on the traction groove 23, facilitating the movement of the limit block 33 and the threaded rod 42. The height of the plug 20 is adjusted, and the plug 20 is engaged with the socket 11, enabling the calibration body 10 to calibrate and verify the piezoelectric sensor. The improved stability of the plug 20 prevents loosening during installation of the plug 20 and the socket 11.

[0040] Any parts or structures not specifically described in this invention can be made using existing technologies or products, and will not be elaborated upon here.

[0041] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A device for verifying and calibrating a piezoelectric sensor, characterized in that: The device includes a calibration body (10), an operating block (12), and a plug (20). The calibration body (10) is provided with a socket (11) that is compatible with the plug (20). The operating block (12) is disposed on the calibration body (10) and is provided with a plug (20). The plug (20) can move along the axis of the operating block (12) to be inserted into or pulled out of the socket (11). The operating block (12) is vertically mounted on the calibration body (10). A rotating cavity (22) is vertically mounted inside the operating block (12). A traction groove (23) is provided on the side of the operating block (12). The traction groove (23) communicates with the rotating cavity (22). A transmission screw (30) is movably mounted inside the rotating cavity (22). A threaded sleeve (31) is threaded onto the transmission screw (30). A sliding block (32) that moves on the traction groove (23) is fixedly mounted on the threaded sleeve (31). A limit block (33) is fixedly mounted on the end of the sliding block (32) away from the operating block (12). A plug (20) is provided on the limit block (33). The side of the limiting block (33) is fixedly equipped with multiple threaded rods (42), and the plug (20) is movably connected to the limiting block (33) through the threaded rods (42); The limiting block (33) has two threaded rods (42) symmetrically arranged on opposite sides of the side away from the operating block (12). The top of the plug (20) has two symmetrically fixed assembly blocks (40). Each assembly block (40) has a through-hole (41) and the assembly hole (41) on each assembly block (40) corresponds to a threaded rod (42) for movable assembly. The top end of the transmission screw (30) passes through the operating block (12) and is fixedly fitted with an operating knob (13). The operating knob (13) is located above the operating block (12). When the operating knob (13) is turned, it drives the transmission screw (30) to rotate in the threaded sleeve block (31). The threaded sleeve block (31) drives the sliding block (32) to move vertically back and forth on the traction groove (23), so that the limiting block (33) drives the threaded rod (42) to move vertically back and forth synchronously, thereby adjusting the height of the plug (20). Two sets of slide rods (43) are fixedly mounted on the side of the limiting block (33) away from the operating block (12). The two sets of slide rods (43) are located between two threaded rods (42). There are two slide rods (43) in each set. A limiting plate (50) is fixedly mounted on one end of the two slide rods (43) in each set. A moving block (51) is movably mounted on the two slide rods (43) in each set. The moving block (51) is located between the limiting block (33) and the limiting plate (50). A rotating groove (52) is formed through the movable block (51). An installation cavity (53) is provided inside the movable block (51). Multiple movable cavities (60) are provided on the installation cavity (53). A connecting rod (61) is fixedly mounted on the movable cavity (60). A ball bearing (62) is movably mounted on the connecting rod (61). A rotating ring (63) is movably mounted on the installation cavity (53). The rotating ring (63) fits into the ball bearing (62). A connecting ring (70) is fixedly mounted on the inner wall of the rotating ring (63). The connecting ring (70) movably penetrates into the rotating groove (52). A threaded sleeve (71) is fixedly mounted on the inner wall of the connecting ring (70). The threaded sleeve (71) is located in the rotating groove (52). A hollow knob (72) is fixedly mounted on one end of the threaded sleeve (71) away from the limiting block (33), and the hollow knob (72) is connected to the threaded sleeve (71).

2. The device for verifying and calibrating a piezoelectric sensor according to claim 1, characterized in that: The top of the plug (20) is fixedly fitted with a connecting wire (21), which is located between two assembly blocks (40).

3. A method for verifying and calibrating a piezoelectric sensor, characterized in that: The verification and calibration of a piezoelectric sensor using the verification and calibration device described in claim 1 includes the following steps: Place the threaded rod (42) in the corresponding assembly hole (41), and turn the hollow knob (72) so that the threaded sleeve (71) rotates on the rotating groove (52) and the rotating ring (63) on the connecting ring (70) rotates in the mounting cavity (53); As the rotating ring (63) rotates, the ball (62) rotates in the connecting rod (61) on the movable cavity (60), and the threaded sleeve (71) rotates and moves on the threaded rod (42), so that the threaded sleeve (71) and the limiting block (33) clamp the assembly block (40), increasing the stability of the threaded rod (42) on the assembly block (40); Twist the operating knob (13) to make the transmission screw (30) rotate in the threaded sleeve (31), so that the threaded sleeve (31) drives the sliding block (32) to move back and forth on the traction groove (23), so that the limit block (33) drives the threaded rod (42) to move back and forth synchronously. Adjust the height of the plug (20) and snap the plug (20) into the socket (11), so that the verification and calibration body (10) can verify and calibrate the piezoelectric sensor.

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