A metrological instrument capacity calibration apparatus

Abstract

The utility model discloses a kind of measuring instrument capacity calibration equipment, including base, the top of base is fixed with stand, the upper end of stand surface is fixedly installed with top seat, the both sides of top seat bottom end are installed with side support frame, the inner wall of side support frame is fixedly connected with the surface of stand, lifting cylinder is installed at the center position of top seat top, the bottom of lifting cylinder is penetrated through top seat and is installed with lifting plate, the both sides of top seat inside are equipped with guide cylinder, guide cylinder is movably connected with guide rod in its inside, the top of guide rod extends to the outside of guide cylinder, the bottom of guide rod extends to the outside of guide cylinder and is connected with the top of lifting plate, the bottom of lifting plate is fixed with placing piece board, electronic metering scale is installed at the top of base below the bottom of placing piece board.The utility model not only reaches the purpose that easy to carry out convenient calibration to tensile force measuring instrument, also reaches the purpose that easy to carry out quick dismounting and replacement to tensile force measuring instrument, and improve the stability when calibration equipment operates.

Description

Technical Field

[0001] This utility model relates to the field of metrological instrument calibration technology, specifically to a metrological instrument capacity calibration device. Background Technology

[0002] The accuracy of the capacity of measuring instruments directly affects the precision of industrial production, trade settlement and scientific research experiments. Tensile measuring instruments are one such example. Traditional calibration methods rely on manual operation, which has problems such as low efficiency, large errors and interference from environmental factors. In order to improve these issues, it is particularly important to develop a capacity calibration device for measuring instruments.

[0003] A metrological instrument capacity calibration device, referenced in CN221667161U, includes a base with a fixed frame on top. A calibration component is mounted on the front of the fixed frame, and a container is mounted on the back of the calibration component. A weighing device is located at the bottom of the container. The calibration component includes a liquid storage tank with a placement plate inserted into its bottom. A flow guide tube is fixedly connected to the bottom back of the liquid storage tank. This invention utilizes a calibration component where rotating a handle rotates a rod, which in turn rotates a spherical block, opening the flow guide tube. This allows liquid from the storage tank to drain through the tube and into the container. The weighing device then weighs the liquid and compares the result with the value displayed on the container. This method eliminates the need for frequent weight changes, improving work efficiency. Furthermore, the water flow can be recycled, making operation convenient. However, while this calibration device has good application potential, it typically requires water supply, resulting in a relatively long calibration time and compromising convenience. Further improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to provide a capacity calibration device for measuring instruments, so as to solve the problem that although the calibration device mentioned in the background art can be well applied, it usually requires water supply operations, which makes the calibration process of the device still time-consuming and difficult to guarantee convenience.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a capacity calibration device for measuring instruments, comprising a base, a support frame fixed to the top of the base, a top seat fixedly installed on the upper end of the surface of the support frame, side supports installed on both sides of the bottom end of the top seat, the inner wall of the side supports fixedly connected to the surface of the support frame, a lifting cylinder installed at the center of the top of the top seat, the bottom end of the lifting cylinder penetrating the top seat and installed with a lifting plate, guide cylinders provided on both sides inside the top seat, a guide rod movably connected inside the guide cylinder, the top end of the guide rod extending to the outside of the guide cylinder, the bottom end of the guide rod extending to the outside of the guide cylinder and connected to the top of the lifting plate, a placement plate fixed to the bottom of the lifting plate, an electronic weighing scale installed on the top of the base below the placement plate, a second measuring screen installed on the surface of the electronic weighing scale, a water tank placed on the top of the electronic weighing scale, a control panel installed on one side of the surface of the base, and the output end of the microcontroller inside the control panel electrically connected to the input end of the lifting cylinder.

[0006] Preferably, an injection port is provided on one side of the surface of the water tank, and a drain port is provided on one side of the lower end of the water tank. The injection port and the drain port are provided to facilitate the injection and drainage of the water tank.

[0007] Preferably, a clamp is fixedly installed on the surface of the mounting plate, a fixed clamping plate is fixed on one side of the surface of the clamp, and a nut seat is provided on the other side of the surface of the clamp, so as to accommodate the screw.

[0008] Preferably, a screw is installed on the internal thread of the nut seat, one end of the screw extends to the outside of the nut seat, and the other side of the screw extends to the outside of the nut seat and is rotatably mounted with a movable clamping plate. The inner wall of the movable clamping plate contacts the surface of the clamping seat. The movable clamping plate is provided to cooperate with the fixed clamping plate to clamp and fix the tension meter.

[0009] Preferably, a support plate is provided on the inner wall of the lower end of both the moving clamp and the fixed clamp. A tension meter is installed above the support plate, and a first measuring screen is installed on the surface of the tension meter. The support plate is provided to support and place the tension meter.

[0010] Preferably, a hook is installed at the bottom of the tension meter, and a lifting ring is installed at the center of the top of the water tank. The hook allows the water tank to be lifted using the lifting ring.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the capacity calibration device for measuring instruments not only achieves the purpose of easy and convenient calibration of tensile measuring instruments, but also achieves the purpose of easy and quick disassembly and replacement of tensile measuring instruments, and improves the stability of the calibration device during operation. (1) A predetermined amount of water is injected into the water tank through the injection port. The weight of the water tank is weighed by an electronic weighing scale. The weighed data is displayed on the second weighing screen. Then, the lifting cylinder is started to drive the lifting plate to move downward, so that the lifting plate drives the tensile measuring device to move downward through the placement plate. The hook is hooked onto the lifting ring. Then, the lifting cylinder drives the lifting plate to move upward, so that the water tank can be lifted by the hook at the bottom of the tensile measuring device. The measurement value displayed on the first weighing screen is observed. The tensile measuring device can be calibrated according to the value on the second weighing screen, thus achieving the purpose of easy and convenient calibration of the tensile measuring device. (2) By turning the screw, the screw rotates and slides inside the nut seat, so that the screw drives the moving clamp to move. When the moving clamp moves close to the fixed clamp, the moving clamp can cooperate with the fixed clamp to clamp and fix the tension meter to the top of the support plate. When the moving clamp moves away from the fixed clamp, the tension meter can be disassembled, thus achieving the purpose of easy and quick disassembly and replacement of the tension meter. (3) By driving the guide rod to perform lifting operations during the lifting process of the lifting plate, the guide rod slides up and down inside the guide cylinder, which can limit the lifting range of the lifting plate, reduce the phenomenon of deviation during the lifting process of the lifting plate, and thus improve the stability of the calibration equipment during operation. Attached Figure Description

[0012] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is an enlarged schematic diagram of the clamp structure of this utility model; Figure 4 This is a side view of the support frame structure of this utility model.

[0013] In the diagram: 1. Base; 2. Control panel; 3. Stand; 4. Top seat; 5. Side support; 6. Lifting cylinder; 7. Guide cylinder; 8. Guide rod; 9. Lifting plate; 10. Placement plate; 11. Clamp; 12. Nut seat; 13. Screw; 14. Tension meter; 1401. First measuring screen; 15. Electronic weighing scale; 1501. Second measuring screen; 16. Water tank; 17. Drain port; 18. Injection port; 19. Lifting ring; 20. Fixed clamp; 21. Moving clamp; 22. Support plate; 23. Hook. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0015] Please see Figure 1-4 An embodiment of this utility model provides a capacity calibration device for measuring instruments, including a base 1, a stand 3 fixed to the top of the base 1, a top seat 4 fixedly installed on the upper end of the surface of the stand 3, side supports 5 installed on both sides of the bottom end of the top seat 4, the inner wall of the side supports 5 fixedly connected to the surface of the stand 3, a lifting cylinder 6 installed at the center of the top of the top of the top seat 4, the bottom end of the lifting cylinder 6 penetrating the top seat 4 and a lifting plate 9 installed thereon, guide cylinders 7 provided on both sides inside the top seat 4, guide rods 8 movably connected inside the guide cylinders 7, the top end of the guide rods 8 extending to the outside of the guide cylinders 7, the bottom end of the guide rods 8 extending to the outside of the guide cylinders 7 and connected to the top of the lifting plate 9, a placement plate 10 fixed to the bottom end of the lifting plate 9, a clamping seat 11 fixedly installed on the surface of the placement plate 10, a fixed clamping plate 20 fixed on one side of the surface of the clamping seat 11, and a nut seat 12 provided on the other side of the surface of the clamping seat 11. In use, the nut seat 12 is provided to accommodate the screw 13. A screw 13 is installed on the internal thread of the nut seat 12. One end of the screw 13 extends to the outside of the nut seat 12, and the other side of the screw 13 extends to the outside of the nut seat 12 and is rotatably mounted with a movable clamp 21. The inner wall of the movable clamp 21 contacts the surface of the clamp seat 11. In use, the movable clamp 21 is set so as to cooperate with the fixed clamp 20 to clamp and fix the tension meter 14. Both the moving clamp 21 and the fixed clamp 20 are provided with support plates 22 on their lower inner walls. A tension meter 14 is installed above the support plate 22, and a first measuring screen 1401 is installed on the surface of the tension meter 14. In use, the support plate 22 is provided to support and mount the tension meter 14. A hook 23 is installed at the bottom of the tension meter 14, and a lifting ring 19 is installed at the center of the top of the water tank 16; In use, the hook 23 is set so that the water tank 16 can be lifted by the lifting ring 19; An electronic weighing scale 15 is installed on the top of the base 1 below the mounting plate 10. A second weighing screen 1501 is installed on the surface of the electronic weighing scale 15. A water tank 16 is installed on the top of the electronic weighing scale 15. An injection port 18 is provided on one side of the surface of the water tank 16. A drain port 17 is provided on one side of the outer wall at the lower end of the water tank 16. In use, the liquid injection port 18 and the liquid discharge port 17 are set so that the water tank 16 can be filled and drained. A control panel 2 is installed on one side of the base 1. The output terminal of the microcontroller inside the control panel 2 is electrically connected to the input terminal of the lifting cylinder 6.

[0016] In this embodiment, the screw 13 is first turned to rotate and slide inside the nut seat 12, causing the screw 13 to drive the movable clamp 21 to move horizontally. When the movable clamp 21 moves close to the fixed clamp 20, the movable clamp 21, in conjunction with the fixed clamp 20, clamps and fixes the tension meter 14 to the top of the support plate 22, thus quickly installing the tension meter 14. Then, a predetermined volume of water is injected into the water tank 16 through the injection port 18. The electronic weighing scale 15 weighs the water tank 16, and the weighed data is displayed on the second weighing screen 1501. Subsequently, the lifting cylinder 6 is activated to drive the lifting plate 9 downwards, so that the lifting plate 9 passes the placement plate... 10 drives the tension meter 14 downward, hooking the hook 23 onto the lifting ring 19. Then, the lifting cylinder 6 drives the lifting plate 9 upward, so that the water tank 16 can be lifted by the hook 23 at the bottom of the tension meter 14. Observe the measurement value displayed on the first measuring screen 1401. The tension meter 14 can be calibrated according to the value on the second measuring screen 1501. Finally, the lifting plate 9 drives the guide rod 8 to lift and lower during the lifting process. The guide rod 8 slides up and down inside the guide cylinder 7, which limits the lifting range of the lifting plate 9 to reduce the deviation during the lifting process and ensure the stability of the lifting plate 9 during the lifting movement, thus completing the use of the calibration equipment.

Claims

1. A capacity calibration device for measuring instruments, characterized in that: Includes a base (1), with a stand (3) fixed to the top of the base (1). A top seat (4) is fixedly installed on the upper end of the surface of the stand (3). Side supports (5) are installed on both sides of the bottom end of the top seat (4). The inner wall of the side supports (5) is fixedly connected to the surface of the stand (3). A lifting cylinder (6) is installed at the center of the top of the top seat (4). The bottom end of the lifting cylinder (6) passes through the top seat (4) and is fitted with a lifting plate (9). Guide cylinders (7) are provided on both sides inside the top seat (4). A guide rod (8) is movably connected inside the guide cylinder (7). The top end of the guide rod (8) extends to... Outside the guide cylinder (7), the bottom end of the guide rod (8) extends to the outside of the guide cylinder (7) and connects to the top end of the lifting plate (9). The bottom end of the lifting plate (9) is fixed with a mounting plate (10). An electronic weighing scale (15) is installed on the top of the base (1) below the mounting plate (10). A second weighing screen (1501) is installed on the surface of the electronic weighing scale (15). A water tank (16) is placed on the top of the electronic weighing scale (15). A control panel (2) is installed on one side of the surface of the base (1). The output end of the microcontroller inside the control panel (2) is electrically connected to the input end of the lifting cylinder (6).

2. The measuring instrument capacity calibration device according to claim 1, characterized in that: The water tank (16) has an injection port (18) on one side of its surface and a drain port (17) on one side of the lower end of its outer wall.

3. The measuring instrument capacity calibration device according to claim 1, characterized in that: A clamp (11) is fixedly installed on the surface of the mounting plate (10). A fixed clamp plate (20) is fixed on one side of the surface of the clamp (11), and a nut seat (12) is provided on the other side of the surface of the clamp (11).

4. The measuring instrument capacity calibration device according to claim 3, characterized in that: The nut seat (12) is threaded with a screw (13). One end of the screw (13) extends to the outside of the nut seat (12), and the other side of the screw (13) extends to the outside of the nut seat (12) and is rotatably mounted with a movable clamp (21). The inner wall of the movable clamp (21) contacts the surface of the clamp seat (11).

5. The measuring instrument capacity calibration device according to claim 4, characterized in that: Both the moving clamp (21) and the fixed clamp (20) have support plates (22) on their lower inner walls. A tension meter (14) is installed above the support plate (22), and a first measuring screen (1401) is installed on the surface of the tension meter (14).

6. The measuring instrument capacity calibration device according to claim 5, characterized in that: The bottom end of the tension meter (14) is equipped with a hook (23), and the center of the top of the water tank (16) is equipped with a lifting ring (19).

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