Calibration device of food and drug metering scale

Abstract

The utility model discloses a calibration device of a food and drug metering scale, and relates to the technical field of metering calibration. The device comprises a calibration unit, wherein the calibration unit comprises a support frame, a calibration piece and an air pump; the calibration piece is arranged in the supporting frame, two sets of sliding rods are vertically arranged in the calibration piece, and the scale body is calibrated by pushing the sliding rods to abut against the scale body; the air pump is arranged on one side of the supporting frame, communicates with the calibration piece and is used for controlling the air pressure in the calibration piece. According to the device, the scale body can be rapidly calibrated through combined use of the sliding rod and the air pump, the scale body is provided with the calibrated metering scale, the metering scale is compared with the scale body, then the scale body is calibrated, convenience and rapidness are achieved, the force of the air pump is increased or reduced, traditional weight replacement is replaced, accuracy is guaranteed, and meanwhile the working efficiency is improved. The time required for calibration is reduced, and the requirements of users are met.

Description

Technical Field

[0001] This utility model relates to the field of metrology and calibration technology, specifically a calibration device for a food and drug weighing scale. Background Technology

[0002] The calibration device for food and drug weighing scales is a key piece of equipment to ensure the accuracy and reliability of measurement. Existing weighing scales are usually calibrated by weights to ensure their accuracy.

[0003] To ensure the accuracy of the test, weights of different weights are usually used for multiple calibrations. During calibration, the used weights need to be removed and new weights need to be installed. This involves many repetitive steps, which makes the calibration time-consuming and reduces the efficiency of the calibration, thus having limitations.

[0004] The reason for this problem is that the existing calibration mode is inadequate to meet the needs of large-scale, multi-parameter testing. It requires full-range calibration of hundreds of weighing sensors, and traditional methods will cause production line downtime for several days, which seriously restricts production efficiency and has limitations. Therefore, we propose a calibration device for food and drug weighing scales to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a calibration device for food and pharmaceutical weighing scales. It solves the problem that during calibration, it is necessary to remove used weights and install new weights, which involves many repetitive steps, resulting in long calibration times, reduced calibration efficiency, and limitations.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a calibration device for a food and drug weighing scale, comprising a calibration unit, wherein the calibration unit includes a support frame, calibration components and an air pump;

[0007] The calibration component is located inside the support frame. Two sets of sliding rods are vertically arranged inside the calibration component. The scale body is calibrated by pushing the sliding rods against it. The air pump is located on one side of the support frame and is connected to the calibration component. The air pump is used to control the air pressure inside the calibration component.

[0008] Preferably, the calibration components include a weighing scale and a gas cylinder;

[0009] The weighing scale is fixedly mounted on a support frame, and the scale body is located below the weighing scale; the gas tank is located between the weighing scale and the scale body.

[0010] Preferably, the slide bar includes an upper slide bar and a lower slide bar;

[0011] The upper sliding rod is slidably disposed at the upper end of the gas tank; the lower sliding rod is slidably disposed at the lower end of the gas tank, and the outer surface of the sliding rod abuts against the inner wall of the gas tank.

[0012] Preferably, the calibration component further includes a slider and a contact block;

[0013] The slider is fixedly mounted on one end of the slide rod and slidably connected to the inside of the gas tank; the contact block is fixedly mounted on the other end of the slide rod, and the ends of the contact block abut against the weighing scale and the scale body respectively.

[0014] Preferably, a support block is fixedly assembled inside the support frame, and the support block is fixedly assembled with the gas tank.

[0015] Preferably, an air guide pipe is provided below the air pump, one end of the air guide pipe is connected to the air pump, and the other end of the air guide pipe is connected to the air tank.

[0016] Preferably, one end of the support frame is provided with a clamping and positioning element, which includes a positioning block and a clamping block;

[0017] The clamping block is disposed on one side of the positioning block and is used to clamp the scale body.

[0018] Preferably, the clamping and positioning component further includes a bidirectional lead screw and a guide rod;

[0019] The bidirectional lead screw passes through the clamping block, the clamping block is threadedly engaged with the bidirectional lead screw, and the bidirectional lead screw is rotatably connected to the positioning block; the guide rod passes through the clamping block, and the clamping block is slidably connected to the outer surface of the guide rod.

[0020] This utility model discloses a calibration device for a food and medicine weighing scale, which has the following beneficial effects: The device can quickly calibrate the scale body by using a combination of a slide bar and an air pump. The scale body is equipped with a pre-calibrated weighing scale. By comparing the weighing scale with the weighing scale, the scale body can be calibrated. This is convenient and quick. Furthermore, by increasing or decreasing the force of the air pump, the traditional method of changing weights is replaced, which ensures accuracy while reducing the calibration time and meeting the needs of users. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a side view of the calibration unit of this utility model.

[0024] Figure 3 This is a schematic diagram of the internal structure of the gas tank of this utility model.

[0025] In the diagram: 1. Calibration unit; 11. Support frame; 12. Calibration component; 121. Weighing scale; 122. Gas tank; 123. Upper slide rod; 124. Lower slide rod; 125. Slider; 126. Contact block; 13. Air pump; 14. Support block; 15. Air guide tube; 2. Clamping and positioning component; 21. Positioning block; 22. Clamping block; 23. Two-way lead screw; 24. Guide rod. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] This application provides a calibration device for food and drug weighing scales, which solves the problem that during calibration, it is necessary to remove used weights and install new weights, which involves many repetitive steps, resulting in long calibration time, reduced calibration efficiency, and limitations.

[0028] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0029] Example 1

[0030] This utility model discloses a calibration device for a food and drug weighing scale. According to the appendix... Figure 1-2 As shown, the system includes a calibration unit 1, which includes a support frame 11, a calibration component 12, and an air pump 13. The calibration component 12 is located inside the support frame 11, and two sets of sliding rods are vertically arranged inside the calibration component 12. The sliding rods are pushed to abut against the scale body to calibrate the scale body. The air pump 13 is located on one side of the support frame 11 and is connected to the calibration component 12. The air pump 13 is used to control the air pressure inside the calibration component 12.

[0031] One end of the support frame 11 is provided with a clamping and positioning component 2, which includes a positioning block 21 and a clamping block 22. The clamping block 22 is located on one side of the positioning block 21 and is used to clamp the scale body. The clamping and positioning component 2 also includes a bidirectional lead screw 23 and a guide rod 24. The bidirectional lead screw 23 passes through the clamping block 22, and the clamping block 22 is threadedly engaged with the bidirectional lead screw 23. The bidirectional lead screw 23 is rotatably connected to the positioning block 21. The guide rod 24 passes through the clamping block 22, and the clamping block 22 is slidably connected to the outer surface of the guide rod 24.

[0032] In this embodiment, when testing the scale body, the bidirectional lead screw 23 is rotated clockwise, which drives the clamping block 22 to move towards the central axis. The clamping block 22 clamps the scale body to be tested and performs calibration through the calibration component 12. After calibration, the bidirectional lead screw 23 is rotated counterclockwise, which drives the clamping block 22 to move away from the central axis, thus releasing the clamping of the scale body.

[0033] Example 2

[0034] This utility model discloses a calibration device for a food and drug weighing scale. More specifically, based on Embodiment 1, it is provided according to the appendix... Figure 1 , 3 As shown, the system includes a calibration unit 1, which includes a support frame 11, a calibration component 12, and an air pump 13. The calibration component 12 is located inside the support frame 11, and two sets of sliding rods are vertically arranged inside the calibration component 12. The sliding rods are pushed to abut against the scale body to calibrate the scale body. The air pump 13 is located on one side of the support frame 11 and is connected to the calibration component 12. The air pump 13 is used to control the air pressure inside the calibration component 12.

[0035] The calibration component 12 includes a weighing scale 121 and a gas tank 122. The weighing scale 121 is fixedly mounted on a support frame 11, and the scale body is positioned below the weighing scale 121. The gas tank 122 is positioned between the weighing scale 121 and the scale body. The sliding rod includes an upper sliding rod 123 and a lower sliding rod 124. The upper sliding rod 123 is slidably positioned at the upper end of the gas tank 122. The lower sliding rod 124 is slidably positioned at the lower end of the gas tank 122, and the outer surface of the sliding rod abuts against the inner wall of the gas tank 122. The calibration component 12 also includes a slider 125 and a connecting rod. Contact block 126; slider 125 is fixedly mounted on one end of slide rod and slidably connected inside gas tank 122; contact block 126 is fixedly mounted on the other end of slide rod, and the end of contact block 126 abuts against weighing scale 121 and scale body respectively; support block 14 is fixedly mounted inside support frame 11, and support block 14 is fixedly mounted to gas tank 122; air guide pipe 15 is provided below air pump 13, one end of air guide pipe 15 is connected to air pump 13, and the other end of air guide pipe 15 is connected to gas tank 122.

[0036] In this embodiment, when the scale body needs to be tested, the scale body is clamped and fixed, and the air pump 13 is started. The air pump 13 inflates the air tank 122 through the air guide pipe 15. The pressure inside the air tank 122 increases, pushing the upper slide rod 123 and the lower slide rod 124 to both ends of the air tank 122. When a larger weight is needed, the pressure inside the air tank 122 is increased by adding gas. After calibration, the gas inside the air tank 122 is extracted by the air pump 13 to complete the calibration. A sealing ring is provided at the end of the air tank 122 that contacts the slide rod to prevent gas from flowing out from the gap between them. The scale body that needs to be calibrated is equipped with a calibrated weighing scale 121. By comparing the weighing scale 121 with the scale body, the scale body can be calibrated. This is convenient and quick, meeting the needs of users.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A calibration device for a food and drug weighing scale, comprising a calibration unit (1), characterized in that, The calibration unit (1) includes; Support frame (11); The calibration component (12) is installed inside the support frame (11). The calibration component (12) has two sets of sliding rods installed vertically inside. The sliding rods are pushed against the scale body to calibrate the scale body. An air pump (13) is provided on one side of the support frame (11). The air pump (13) is connected to the calibration piece (12) and is used to control the air pressure inside the calibration piece (12).

2. The calibration device for a food and drug weighing scale according to claim 1, characterized in that: The calibration component (12) includes; A weighing scale (121) is fixedly mounted on a support frame (11), and the scale body is located under the weighing scale (121); Gas cylinder (122) is located between the weighing scale (121) and the scale body.

3. The calibration device for a food and drug weighing scale according to claim 2, characterized in that, The slide bar includes; The upper slide bar (123) is slidably disposed at the upper end of the gas tank (122); A sliding rod (124) is slidably disposed at the lower end of the gas tank (122), and the outer surface of the sliding rod abuts against the inner wall of the gas tank (122).

4. The calibration device for a food and drug weighing scale according to claim 2, characterized in that: The calibration component (12) also includes; The slider (125) is fixedly mounted on one end of the slide rod and is slidably connected inside the gas tank (122); The contact block (126) is fixedly mounted on the other end of the slide rod, and the ends of the contact block (126) abut against the weighing scale (121) and the scale body respectively.

5. The calibration device for a food and drug weighing scale according to claim 2, characterized in that: The support frame (11) is internally fixedly equipped with a support block (14), which is fixedly assembled with the gas tank (122).

6. The calibration device for a food and drug weighing scale according to claim 2, characterized in that: An air guide pipe (15) is provided below the air pump (13). One end of the air guide pipe (15) is connected to the air pump (13), and the other end of the air guide pipe (15) is connected to the air tank (122).

7. The calibration device for a food and drug weighing scale according to claim 1, characterized in that: One end of the support frame (11) is provided with a clamping and positioning member (2), the clamping and positioning member (2) includes; Positioning block (21); A clamping block (22) is disposed on one side of the positioning block (21), and the clamping block (22) is used to clamp the scale body.

8. The calibration device for a food and drug weighing scale according to claim 7, characterized in that: The clamping and positioning element (2) also includes; A bidirectional lead screw (23) passes through a clamping block (22), the clamping block (22) is threadedly engaged with the bidirectional lead screw (23), and the bidirectional lead screw (23) is rotatably connected to a positioning block (21); A guide rod (24) passes through a clamping block (22), which is slidably connected to the outer surface of the guide rod (24).

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