Precision calibrating device for electronic weighing instrument

Abstract

The utility model relates to an electronic weighing instrument precision calibrating device which comprises a base, a first electric telescopic rod is fixedly connected to one side of the top of the base, a first supporting plate is fixedly connected to the top of the first electric telescopic rod, a driving box is fixedly connected to the top of the first supporting plate, and a second supporting plate is arranged in the driving box. According to the utility model, through the arrangement of the fixed seat, a detection weight can be stably clamped, and the situation that the weight is toppled and bumped during storage, so that the weight is scratched and the accuracy is influenced is avoided; a first electric telescopic rod, a second electric telescopic rod, a third electric telescopic rod and a driving box are arranged to drive a clamping frame to move in all directions, and a fourth electric telescopic rod is arranged to drive a clamping plate to move, so that a weight is conveniently and stably clamped, and the situation that the weight falls off in the moving process, and the verification efficiency is affected is avoided.

Description

Technical Field

[0001] The utility model relates to a calibration device, in particular to an electronic weighing instrument accuracy calibration device, belonging to the technical field of electronic weighing instrument calibration. Background Art

[0002] Scales are the most common weighing and measuring instruments in the world today. Scales must be calibrated before use to determine their accuracy level. Standard weights are weights used as reference weights in calibration institutions or in corresponding certified companies to calibrate scales, especially precision scales, or to calibrate other weights with lower accuracy levels.

[0003] An existing electronic scale accuracy verification device with announcement number CN219104165U can record the values ​​detected by the weights at the center and four corners of the electronic scale body, ensuring the accuracy of the accuracy verification results of the electronic scale body, but cannot detect the impact of different temperature and humidity environments on the accuracy of the electronic scale. Utility Model Content

[0004] The purpose of the utility model is to provide an electronic scale accuracy calibration device in order to solve the above-mentioned problem. By setting a fixed seat, the detection weight can be stably clamped to avoid the weight from tipping over and bumping when being stored, causing scratches and affecting the accuracy. By setting a first electric telescopic rod, a second electric telescopic rod, a third electric telescopic rod and a drive box, the clamping frame can be driven to move in all directions. By setting a fourth electric telescopic rod, the clamping plate can be driven to move, which is convenient for stably clamping the weight and avoiding the weight from falling during the movement and affecting the calibration efficiency.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: an electronic scale accuracy calibration device, including a base, a first electric telescopic rod fixedly connected to one side of the top of the base, a first support plate fixedly connected to the top of the first electric telescopic rod, a driving box fixedly connected to the top of the first support plate, a second support plate is provided inside the driving box, a vertical plate fixedly connected to the top of the second support plate, a second electric telescopic rod fixedly connected to one side of the top of the vertical plate, a column fixedly connected to the end of the second electric telescopic rod, a mounting plate fixedly connected to the bottom of the column, a third electric telescopic rod fixedly connected to the bottom of the mounting plate, a fixing frame fixedly connected to the end of the third electric telescopic rod, and a clamping frame fixedly connected to the bottom of the fixing frame.

[0006] Preferably, a servo motor is fixedly connected to the front side of the drive box, a lead screw is fixedly connected to the output end of the servo motor, and a threaded sleeve is threadedly connected to the outer periphery of the lead screw.

[0007] Preferably, the bottom of the threaded sleeve is slidably connected to the inner wall of the drive box, the top of the threaded sleeve is fixedly connected to the bottom of the second support plate, a sliding rod is slidably connected inside the second support plate, and both ends of the sliding rod are fixedly connected to the inner wall of the drive box.

[0008] Preferably, a first positioning rod is fixedly connected to one side of the bottom of the column, and the first positioning rod is slidably connected to the vertical plate. A second positioning rod is fixedly connected to one side of the top of the fixing frame, and the second positioning rod is slidably connected to the mounting plate.

[0009] Preferably, a fourth electric telescopic rod is fixedly connected to the inner wall of the clamping frame, a clamping plate is fixedly connected to the end of the fourth electric telescopic rod, a support plate is fixedly connected to one side of the clamping plate, a micro electric telescopic rod is fixedly connected to the side wall of the support plate, and a clamping plate is fixedly connected to the end of the micro electric telescopic rod.

[0010] Preferably, the top of the base is fixedly connected to a support frame, the top of the support frame is fixedly connected to a fixing seat, the fixing seats are arranged in a rectangular shape, the inner wall of the fixing seat is fixedly connected to a connecting rod, the end of the connecting rod is fixedly connected to a fixing ring, the outer periphery of the fixing ring is fixedly connected to a fifth electric telescopic rod, the end of the fifth electric telescopic rod is fixedly connected to an arc plate, a return spring is fixedly connected to one side of the arc plate, and the end of the return spring is fixedly connected to an arc positioning plate.

[0011] Preferably, a calibration box is provided on one side of the support frame, and a box door is rotatably connected to one side of the calibration box through a hinge. A placement block is fixedly connected inside the calibration box, and an electronic scale body is fixedly connected to the top of the placement block. A hot air box and a humidification box are fixedly connected to the inner wall of the calibration box.

[0012] The beneficial effects of the utility model are:

[0013] The utility model can stably clamp the detection weight by arranging a fixed seat, so as to avoid the weight from tipping over and bumping when storing, causing scratches and affecting the accuracy; the first electric telescopic rod, the second electric telescopic rod, the third electric telescopic rod and the driving box can be provided to drive the clamping frame to move in all directions; the fourth electric telescopic rod can be provided to drive the clamping plate to move, so as to stably clamp the weight and avoid the weight from falling during the movement and affecting the calibration efficiency; at the same time, the clamping frame can place the weight at various positions of the electronic scale body, so as to facilitate multi-point detection; the temperature and humidity inside the calibration box can be changed by providing a hot air box and a humidifying box, so as to facilitate the detection of the accuracy of the electronic scale body under the influence of different temperatures and humidities. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a partial enlarged view of the utility model.

[0016] Figure 3 It is a schematic diagram of the internal structure of the drive box of the utility model.

[0017] Figure 4 It is a schematic diagram of the internal structure of the fixing seat of the utility model.

[0018] Figure 5 It is a schematic diagram of the internal structure of the calibration box of the utility model.

[0019] Numbers in the figure: 1. base; 2. first electric telescopic rod; 3. drive box; 4. second electric telescopic rod; 5. third electric telescopic rod; 6. clamping frame; 7. screw rod; 8. threaded sleeve; 9. fourth electric telescopic rod; 10. clamping plate; 11. clamping plate; 12. fixing seat; 13. fixing ring; 14. fifth electric telescopic rod; 15. reset spring; 16. arc positioning plate; 17. calibration box; 18. electronic scale body; 19. hot air box; 20. humidifying box. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] Example 1 Please refer to Figure 1-5 As shown, an electronic scale accuracy calibration device comprises a base 1, a first electric telescopic rod 2 is fixedly connected to one side of the top of the base 1, a first support plate is fixedly connected to the top of the first electric telescopic rod 2, a driving box 3 is fixedly connected to the top of the first support plate, a second support plate is arranged inside the driving box 3, a vertical plate is fixedly connected to the top of the second support plate, a second electric telescopic rod 4 is fixedly connected to one side of the top of the vertical plate, a column is fixedly connected to the end of the second electric telescopic rod 4, a mounting plate is fixedly connected to the bottom of the column, a third electric telescopic rod 5 is fixedly connected to the bottom of the mounting plate, a fixing frame is fixedly connected to the end of the third electric telescopic rod 5, and a clamping frame 6 is fixedly connected to the bottom of the fixing frame.

[0022] Specifically, the front side of the drive box 3 is fixedly connected to a servo motor, the output end of the servo motor is fixedly connected to a screw rod 7, the outer periphery of the screw rod 7 is threadedly connected to a threaded sleeve 8, the bottom of the threaded sleeve 8 is slidably connected to the inner wall of the drive box 3, the top of the threaded sleeve 8 is fixedly connected to the bottom of the second support plate, the inside of the second support plate is slidably connected to a sliding rod, both ends of the sliding rod are fixedly connected to the inner wall of the drive box 3, one side of the bottom of the column is fixedly connected to a first positioning rod, the first positioning rod is slidably connected to the vertical plate, the top side of the fixed frame is fixedly connected to a second positioning rod, the second positioning rod is slidably connected to the mounting plate, the clamping frame 6 is fixedly connected to the inner wall of the fourth electric telescopic rod 9, the end of the fourth electric telescopic rod 9 is fixedly connected to a clamping plate 10, one side of the clamping plate 10 is fixedly connected to a support plate, the side wall of the support plate is fixedly connected to a micro electric telescopic rod, the end of the micro electric telescopic rod is fixedly connected to a clamping plate 11, the top of the base 1 is fixedly connected to a support frame, the top of the support frame is fixedly connected to a fixing seat 12, the fixing seats 12 are arranged in a rectangular shape, the inner wall of the fixing seat 12 is fixedly connected to a connecting rod, the end of the connecting rod is fixedly connected to a fixing ring 13, the outer periphery of the fixing ring 13 is fixedly connected to a fifth electric telescopic rod 14, The end of the fifth electric telescopic rod 14 is fixedly connected to an arc plate, one side of the arc plate is fixedly connected to a reset spring 15, the end of the reset spring 15 is fixedly connected to an arc positioning plate 16, a calibration box 17 is provided on one side of the support frame, one side of the calibration box 17 is rotatably connected to a box door through a hinge, a placement block is fixedly connected to the inside of the calibration box 17, the top of the placement block is fixedly connected to an electronic scale body 18, the inner wall of the calibration box 17 is fixedly connected to a hot air box 19 and a humidifying box 20, and the fixed seat 12 can be provided to stably clamp the test weights to avoid tipping and bumping when the weights are stored, resulting in scratches and affecting Accuracy, by setting the first electric telescopic rod 2, the second electric telescopic rod 4, the third electric telescopic rod 5 and the driving box 3, the clamping frame 6 can be driven to move in all directions, and by setting the fourth electric telescopic rod 9, the clamping plate 10 can be driven to move, which is convenient for stably clamping the weights to avoid the weights falling during the movement and affecting the calibration efficiency. At the same time, the clamping frame 6 can place the weights at various positions of the electronic scale body 18, which is convenient for multi-point detection. By setting the hot air box 19 and the humidifying box 20, the temperature and humidity inside the calibration box 17 can be changed, which is convenient for detecting the accuracy of the electronic scale body 18 under the influence of different temperatures and humidities.

[0023] When the utility model is in use, the detection weights can be stably clamped by setting the fixed seat 12 to avoid the weights from tipping over and bumping when they are stored, causing scratches and affecting the accuracy. The first electric telescopic rod 2, the second electric telescopic rod 4, the third electric telescopic rod 5 and the drive box 3 can drive the clamping frame 6 to move in all directions. The fourth electric telescopic rod 9 can drive the clamping plate 10 to move, which is convenient for stably clamping the weights to avoid the weights from falling during the movement and affecting the calibration efficiency. At the same time, the clamping frame 6 can place the weights at various positions of the electronic scale body 18, which is convenient for multi-point detection. The hot air box 19 and the humidifying box 20 can be used to change the temperature and humidity inside the calibration box 17, so as to detect the accuracy of the electronic scale body 18 under the influence of different temperatures and humidities.

[0024] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An electronic weighing instrument accuracy verification device, comprising a base (1), characterized in that: A first electric telescopic rod (2) is fixedly connected to one side of the top of the base (1), a first support plate is fixedly connected to the top of the first electric telescopic rod (2), a driving box (3) is fixedly connected to the top of the first support plate, a second support plate is arranged inside the driving box (3), a vertical plate is fixedly connected to the top of the second support plate, a second electric telescopic rod (4) is fixedly connected to one side of the top of the vertical plate, a column is fixedly connected to the end of the second electric telescopic rod (4), a mounting plate is fixedly connected to the bottom of the column, a third electric telescopic rod (5) is fixedly connected to the bottom of the mounting plate, a fixing frame is fixedly connected to the end of the third electric telescopic rod (5), and a clamping frame (6) is fixedly connected to the bottom of the fixing frame.

2. The electronic weighing instrument accuracy verification device according to claim 1, characterized in that: A servo motor is fixedly connected to the front side of the drive box (3), a lead screw (7) is fixedly connected to the output end of the servo motor, and a threaded sleeve (8) is threadedly connected to the outer periphery of the lead screw (7).

3. The electronic weighing instrument accuracy verification device according to claim 2, characterized in that: The bottom of the threaded sleeve (8) is slidably connected to the inner wall of the drive box (3), the top of the threaded sleeve (8) is fixedly connected to the bottom of the second support plate, a sliding rod is slidably connected inside the second support plate, and both ends of the sliding rod are fixedly connected to the inner wall of the drive box (3).

4. The electronic weighing instrument accuracy verification device according to claim 1, characterized in that: A first positioning rod is fixedly connected to one side of the bottom of the column, and the first positioning rod is slidably connected to the vertical plate. A second positioning rod is fixedly connected to one side of the top of the fixing frame, and the second positioning rod is slidably connected to the mounting plate.

5. The electronic weighing instrument accuracy verification device according to claim 1, characterized in that: A fourth electric telescopic rod (9) is fixedly connected to the inner wall of the clamping frame (6), a clamping plate (10) is fixedly connected to the end of the fourth electric telescopic rod (9), a support plate is fixedly connected to one side of the clamping plate (10), a micro electric telescopic rod is fixedly connected to the side wall of the support plate, and a clamping plate (11) is fixedly connected to the end of the micro electric telescopic rod.

6. The electronic weighing instrument accuracy verification device according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a support frame, the top of the support frame is fixedly connected to a fixing seat (12), the fixing seats (12) are arranged in a rectangular shape, the inner wall of the fixing seat (12) is fixedly connected to a connecting rod, the end of the connecting rod is fixedly connected to a fixing ring (13), the outer periphery of the fixing ring (13) is fixedly connected to a fifth electric telescopic rod (14), the end of the fifth electric telescopic rod (14) is fixedly connected to an arc plate, one side of the arc plate is fixedly connected to a return spring (15), and the end of the return spring (15) is fixedly connected to an arc positioning plate (16).

7. The electronic weighing instrument accuracy verification device according to claim 6, characterized in that: A calibration box (17) is provided on one side of the support frame, and a box door is rotatably connected to one side of the calibration box (17) via a hinge. A placement block is fixedly connected inside the calibration box (17), and an electronic scale body (18) is fixedly connected to the top of the placement block. A hot air box (19) and a humidifying box (20) are fixedly connected to the inner wall of the calibration box (17).

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