Chemical instrument pressure verification device

Abstract

The chemical instrument pressure verification device comprises a base, the top of the base is fixedly connected with a verification instrument, and the chemical instrument pressure verification device has the beneficial effects that through the arrangement of a supporting plate, a first sliding groove, a sliding rod, a second sliding groove, a first threaded rod and a movable plate, the function of fixing the pressure instrument is realized, and the position of the pressure instrument is fixed; by arranging a second threaded rod, a connecting frame, a fixing plate, a mounting plate and an arc-shaped damping pad, the function of fixing pressure meters of different sizes is achieved, the pressure meters of different sizes are better fixed in the device, the stability of the pressure meters is improved, and then the calibration stability is guaranteed; by arranging the fixing plates, the clamping holes, the springs, the clamping blocks, the connecting plates, the mounting plates and the arc-shaped shock pads, the function of disassembling the arc-shaped shock pads is achieved, and when the arc-shaped shock pads are damaged and need to be replaced after being used at multiple positions, the arc-shaped shock pads are replaced.

Description

Technical Field

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

[0002] Diaphragm pressure gauges, also known as micro pressure gauges, are suitable for measuring the low pressure of liquids, gases or steam that are not explosive, non-crystallized, non-solidified, and corrosive to copper and copper alloys. Most chemical liquids have a certain degree of corrosiveness, so micro pressure gauges are often used as chemical pressure instruments. In order to ensure the accuracy of the micro pressure gauge, it is usually necessary to calibrate it. When the existing pressure gauges are tested and calibrated, the calibration instrument is usually placed on a pressure test bench for testing. Since the lateral spacing of the test pressure plate of the pressure test bench is usually not adjustable, the calibration operation cannot be carried out routinely after the specifications of the bottom connection seat of the pressure gauge itself are changed, which makes the applicability of the calibration operation poor.

[0003] Therefore, Chinese patent announcement No. CN 215865639 U proposes an automatic calibration device for chemical pressure instruments, including a test stand for support, two connecting frames are arranged on the test stand, an adjustment seat for limiting is arranged between the two connecting frames on the upper surface of the test stand, the lower end of the connecting frame is in sliding contact with the adjustment seat, a pressure plate for auxiliary extrusion is arranged on the top of the connecting frame, and an adjustment component is arranged on the inner side of the adjustment seat. When adjusting the distance between the two pressure plates according to the specifications of the pressure instrument to be calibrated, the pressure instrument is placed on the upper end of the support seat, and then the connecting screw is twisted by twisting the handle, so that the sliding seat can slide horizontally in the slide groove under the influence of the thread groove and the thread of the connecting screw, thereby adjusting the lateral distance between the two pressure plates, so that it can be suitable for pressure instruments of different specifications, effectively improving the applicability.

[0004] However, when this type of chemical pressure instrument automatic calibration device is used, it cannot perform fixed calibration on a plurality of pressure instruments of different specifications, so that the use of the device has certain defects. Summary of the invention

[0005] The utility model aims to provide a pressure calibration device for chemical instruments to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A chemical instrument pressure calibration device comprises a base, the top of the base is fixedly connected to a calibration instrument, the top of the base is fixedly connected to a support plate at one end away from the calibration instrument, a first slide groove is opened on one side of the support plate, a slide rod is fixedly connected inside the first slide groove, a moving plate is slidably connected to the outside of the slide rod through a moving block, a second threaded rod is rotatably connected to the top of the moving plate, the outer side of the second threaded rod is threadedly connected to a connecting frame, the bottom of the connecting frame passes through the bottom of the moving plate and is fixedly connected to a fixed plate, the bottom of the fixed plate is detachably connected to a mounting plate, and a side of the mounting plate away from the fixed plate is fixedly connected to an arc-shaped shock-absorbing pad.

[0008] The top two ends of the above-mentioned mounting plate are provided with clamping holes, the interior of the fixing plate is slidably connected with a clamping block, and a spring is fixedly connected between one end of the clamping block and the fixing plate.

[0009] One end of the clamping block away from the spring is fixedly connected with a connecting plate.

[0010] In a preferred solution, a second slide groove is opened on one side of the above-mentioned support plate, and a first threaded rod is rotatably connected inside the second slide groove, and the top of the first threaded rod passes through the top of the support plate and is fixedly connected to a turntable.

[0011] The above-mentioned movable plate is threadedly connected with the first threaded rod through the transverse plate.

[0012] In a preferred solution, a verification unit is fixedly connected to the top of the base.

[0013] In a preferred solution, four corners of the bottom of the base are fixedly connected with support blocks.

[0014] The utility model provides a chemical instrument pressure calibration device, which realizes the function of fixing the pressure instrument by arranging a supporting plate, a first slide groove, a sliding rod, a second slide groove, a first threaded rod and a moving plate. The pressure instrument is placed in the corresponding calibration part, and the turntable is rotated, and the turntable drives the first threaded rod to rotate. The first threaded rod rotates and drives the moving plate to move along the sliding rod until one side of the arc-shaped shock-absorbing pad contacts the pressure instrument, thereby fixing the position of the pressure instrument. The function of fixing pressure instruments of different sizes is realized by arranging the second threaded rod, the connecting frame, the fixing plate, the mounting plate and the arc-shaped shock-absorbing pad. When the pressure instruments to be calibrated are of different sizes, the second threaded rod is rotated, and the second threaded rod is rotated. The rotation of the rod moves the connecting frame, and the connecting frame moves the fixing plate, the mounting plate and the arc-shaped shock-absorbing pad, so as to adjust the position of the arc-shaped shock-absorbing pad, and better fix the pressure gauges of different sizes in the device, thereby improving the stability of the pressure instrument and ensuring the stability of the calibration; by arranging the fixing plate, the clamping hole, the spring, the clamping block, the connecting plate, the mounting plate and the arc-shaped shock-absorbing pad, the function of disassembling the arc-shaped shock-absorbing pad is realized, and when the arc-shaped shock-absorbing pad is damaged after being used in multiple places and needs to be replaced, the connecting plate is moved, and the connecting plate moves with the clamping block in the direction of the spring, the clamping block loosens the restriction on the clamping hole, and the mounting plate and the arc-shaped shock-absorbing pad are removed from one side of the fixing plate, and the arc-shaped shock-absorbing pad is replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 3 It is a front view of the utility model;

[0019] Figure 4 It is a schematic diagram of the enlarged structure of part A of the utility model.

[0020] In the figure: 1. base; 2. calibration instrument; 3. calibration part; 4. support block; 5. support plate; 6. first slide groove; 7. slide rod; 8. second slide groove; 9. first threaded rod; 10. moving plate; 11. turntable; 12. second threaded rod; 13. connecting frame; 14. fixing plate; 15. clamping hole; 16. spring; 17. clamping block; 18. connecting plate; 19. mounting plate; 20. arc-shaped shock-absorbing pad. DETAILED DESCRIPTION

[0021] A chemical instrument pressure calibration device comprises a base 1, a calibration instrument 2 is fixedly connected to the top of the base 1, a support plate 5 is fixedly connected to the end of the top of the base 1 away from the calibration instrument 2, a first slide groove 6 is opened on one side of the support plate 5, a slide rod 7 is fixedly connected to the inside of the first slide groove 6, a moving plate 10 is slidably connected to the outside of the slide rod 7 through a moving block, a second threaded rod 12 is rotatably connected to the top of the moving plate 10, a connecting frame 13 is threadedly connected to the outside of the second threaded rod 12, a fixing plate 14 is fixedly connected to the bottom of the moving plate 10 through the bottom of the connecting frame 13, a mounting plate 19 is detachably connected to the bottom of the fixing plate 14, and a curved shock-absorbing pad 20 is fixedly connected to the side of the mounting plate 19 away from the fixing plate 14.

[0022] The two ends of the top of the mounting plate 19 are provided with clamping holes 15 , and a clamping block 17 is slidably connected inside the fixing plate 14 , and a spring 16 is fixedly connected between one end of the clamping block 17 and the fixing plate 14 .

[0023] One end of the clamping block 17 away from the spring 16 is fixedly connected to a connecting plate 18 .

[0024] In a preferred solution, a second slide groove 8 is opened on one side of the support plate 5 , and a first threaded rod 9 is rotatably connected inside the second slide groove 8 . The top of the first threaded rod 9 passes through the top of the support plate 5 and is fixedly connected to a turntable 11 .

[0025] The above-mentioned movable plate 10 is threadedly connected to the first threaded rod 9 through the transverse plate.

[0026] In a preferred solution, a verification unit 3 is fixedly connected to the top of the base 1 .

[0027] In a preferred solution, the four bottom corners of the base 1 are fixedly connected with support blocks 4 .

[0028] Example:

[0029] like Figures 1 to 4As shown, the utility model provides a technical solution: a calibration device includes a base 1, a calibration instrument 2 is fixedly connected to the top of the base 1, a support plate 5 is fixedly connected to the end of the top of the base 1 away from the calibration instrument 2, a first slide groove 6 is opened on one side of the support plate 5, a slide rod 7 is fixedly connected inside the first slide groove 6, a moving plate 10 is slidably connected to the outside of the slide rod 7 through a moving block, a moving plate 10 is slidably connected to the outside of the slide rod 7, a side of the moving plate 10 away from the slide rod 7 is fixedly connected to the moving plate 10, and the top of the moving plate 10 is rotatably connected to A second threaded rod 12, the outer side of the second threaded rod 12 is threadedly connected to a connecting frame 13, the second threaded rod 12 rotates to move with the connecting frame 13, the bottom of the connecting frame 13 passes through the bottom of the movable plate 10 and is fixedly connected to a fixed plate 14, the connecting frame 13 moves and moves with the fixed plate 14, the bottom of the fixed plate 14 is detachably connected to a mounting plate 19, the side of the mounting plate 19 away from the fixed plate 14 is fixedly connected to an arc-shaped shock-absorbing pad 20, so as to reduce part of the vibration force on the instrument and better replace the mounting plate 19 and the arc-shaped shock-absorbing pad 20.

[0030] Furthermore, both ends of the top of the mounting plate 19 are provided with clamping holes 15, and a clamping block 17 is slidably connected to the inside of the fixing plate 14. The clamping block 17 cooperates with the clamping hole 15 to fix the position of the mounting plate 19. A spring 16 is fixedly connected between one end of the clamping block 17 and the fixing plate 14. The clamping block 17 moves toward the spring 16, and the spring 16 is squeezed to generate elastic force. When the spring 16 loses its pressing force, the spring 16 restores the clamping block 17 to its original position under the action of the elastic force.

[0031] Furthermore, one end of the clamping block 17 away from the spring 16 is fixedly connected to a connecting plate 18 , and the connecting plate 18 moves with the clamping block 17 .

[0032] Furthermore, a second slide groove 8 is opened on one side of the support plate 5, and a first threaded rod 9 is rotatably connected inside the second slide groove 8. The top of the first threaded rod 9 passes through the top of the support plate 5 and is fixedly connected with a turntable 11. When the turntable 11 is rotated, the turntable 11 rotates with the first threaded rod 9.

[0033] Furthermore, the movable plate 10 is threadedly connected to the first threaded rod 9 through a transverse plate, the outer side of the first threaded rod 9 is threadedly connected to the transverse plate, and one end of the transverse plate away from the first threaded rod 9 is fixedly connected to the movable plate 10.

[0034] Furthermore, a calibration unit 3 is fixedly connected to the top of the base 1 to better place the pressure instrument.

[0035] Furthermore, the four bottom corners of the base 1 are fixedly connected with support blocks 4 to better place the device on a flat surface.

[0036] Specifically, when using the utility model, the pressure instrument is placed in the corresponding calibration part 3, the turntable 11 is rotated, the turntable 11 rotates with the first threaded rod 9, the first threaded rod 9 rotates and moves the moving plate 10 along the slide bar 7 until one side of the arc-shaped shock-absorbing pad 20 contacts the pressure instrument, and the position of the pressure instrument is fixed. When the pressure instrument to be calibrated is of different sizes, the second threaded rod 12 is rotated, the second threaded rod 12 rotates and moves with the connecting frame 13, and the connecting frame 13 moves with the fixing plate 14, the mounting plate 19 and the arc-shaped shock-absorbing pad 20. , adjust the position of the arc-shaped shock-absorbing pad 20, better fix the pressure gauges of different sizes in the device, improve the stability of the pressure instrument, thereby ensuring the stability of the calibration and improving the accuracy of the equipment verification. When the arc-shaped shock-absorbing pad 20 is damaged after being used in multiple places and needs to be replaced, move the connecting plate 18, and the connecting plate 18 moves with the block 17 in the direction of the spring 16. The block 17 releases the restriction on the card hole 15, and the mounting plate 19 and the arc-shaped shock-absorbing pad 20 are removed from one side of the fixed plate 14, and the arc-shaped shock-absorbing pad 20 is replaced.

Claims

1. A chemical instrument pressure calibration device, characterized by: The invention comprises a base (1), wherein the top of the base (1) is fixedly connected to a calibration instrument (2), and the top of the base (1) is fixedly connected to a support plate (5) at one end thereof away from the calibration instrument (2), a first slide groove (6) is provided on one side of the support plate (5), a slide rod (7) is fixedly connected inside the first slide groove (6), a movable plate (10) is slidably connected to the outer side of the slide rod (7) via a movable block, a second threaded rod (12) is rotatably connected to the top of the movable plate (10), a connecting frame (13) is threadedly connected to the outer side of the second threaded rod (12), the bottom of the connecting frame (13) passes through the bottom of the movable plate (10) and is fixedly connected to a fixed plate (14), the bottom of the fixed plate (14) is detachably connected to a mounting plate (19), and a side of the mounting plate (19) away from the fixed plate (14) is fixedly connected to an arc-shaped shock-absorbing pad (20).

2. A chemical instrument pressure calibration device according to claim 1, characterized in that: The top two ends of the mounting plate (19) are provided with clamping holes (15), the interior of the fixing plate (14) is slidably connected with a clamping block (17), and a spring (16) is fixedly connected between one end of the clamping block (17) and the fixing plate (14).

3. A chemical instrument pressure calibration device according to claim 2, characterized in that: One end of the clamping block (17) away from the spring (16) is fixedly connected to a connecting plate (18).

4. A chemical instrument pressure calibration device according to claim 1, characterized in that: A second slide groove (8) is provided on one side of the support plate (5), a first threaded rod (9) is rotatably connected inside the second slide groove (8), and the top of the first threaded rod (9) passes through the top of the support plate (5) and is fixedly connected to a rotating disk (11).

5. A chemical instrument pressure calibration device according to claim 4, characterized in that: The movable plate (10) is threadedly connected to the first threaded rod (9) via a transverse plate.

6. A chemical instrument pressure calibration device according to claim 1, characterized in that: A verification part (3) is fixedly connected to the top of the base (1).

7. A chemical instrument pressure calibration device according to claim 1, characterized in that: The four bottom corners of the base (1) are fixedly connected to support blocks (4).

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