A calibration device for electronic scales

Abstract

The utility model relates to electronic scale calibration technical field, concretely relates to a kind of calibration device for electronic scale, including scale body and scale rod, the outer wall of scale rod is provided with symmetrical fixed block, rotatably arranged between two fixed blocks there is rotary plate, the side wall of rotary plate is provided with support block, the top of support block is rotatably arranged with electric push rod for providing calibration pressure, by rotating electric push rod, so that the telescopic end of electric push rod and pressure sensor are located in the central part of scale, calibration is carried out in the central part of scale body, finally through the pressure of controller control electric push rod telescopic end work, when electric push rod telescopic end works, it will drive pressure sensor and the top of scale body to touch, by observing the value shown by pressure sensor and the value shown by electronic scale whether consistent, to complete the calibration work of electronic scale, after calibration, electric push rod and pressure sensor can be stored on the side wall of scale rod, calibration can be carried out to electronic scale at any time and anywhere by the above device.

Description

Technical Field

[0001] This utility model application relates to the field of electronic scale calibration technology, specifically to a calibration device for electronic scales. Background Technology

[0002] An electronic scale is a type of weighing instrument that uses Hooke's Law or the lever balance principle of forces to determine the mass of an object. Based on their structural principles, they can be divided into three main categories: mechanical scales, electronic scales, and electromechanical scales. When an electronic scale exhibits significant weighing errors during use, it requires verification and calibration.

[0003] Chinese Patent Publication No. CN213688652U discloses an electronic scale calibration device, relating to the technical field of electronic scale calibration devices. This invention includes a mounting base plate with a groove on its upper surface. Several evenly distributed pressure sensors are fixedly connected within the groove. A main fixing plate and a secondary fixing plate are fixedly connected to the upper surface of the mounting base plate. Horizontal plates are fixedly connected to opposite sides of the main and secondary fixing plates. A fixing column is fixedly connected to the lower surface of the horizontal plates. A circular hole is formed on the lower surface of the fixing column, and a lead screw is installed within the hole. A calibration plate is fixedly connected to the lower surface of the lead screw. This invention utilizes a drive motor, which sequentially rotates a connecting rod, a driving gear, and a driven gear. The internal thread connecting the lead screw to the lead screw causes it to rise and fall, ultimately raising and lowering the calibration plate to calibrate the electronic scale. An anti-slip pad is also included to increase the contact area between the calibration plate and the electronic scale, further ensuring calibration accuracy.

[0004] The aforementioned device calibrates the electronic scale by placing it inside the housing. However, when the electronic scale is subjected to external weight and requires calibration, the housing must be transported specifically for this purpose. Even if the housing and the electronic scale could be carried together, this would cause transportation inconvenience. Utility Model Content

[0005] To address the aforementioned issues, a calibration device for electronic scales is provided. By rotating an electric push rod, the extension end of the electric push rod and the pressure sensor are kept perpendicular to the scale body. Finally, the controller controls the pressure of the extension end of the electric push rod during operation. When the extension end of the electric push rod is working, it causes the pressure sensor to contact the top of the scale body. By observing whether the value displayed by the pressure sensor matches the value displayed by the electronic scale, the calibration of the electronic scale is completed. After calibration, the electric push rod and pressure sensor can be stored on the side wall of the scale arm. The above device allows for calibration of the electronic scale anytime and anywhere.

[0006] To address the existing technical problems, this utility model application provides a calibration device for electronic scales, including a scale body and a scale rod. The outer wall of the scale rod is provided with symmetrical fixing blocks, and a rotating plate is rotatably arranged between the two fixing blocks. The side wall of the rotating plate is provided with a support block, and the top of the support block is rotatably provided with an electric push rod for providing calibration pressure. The telescopic end of the electric push rod is provided with a pressure sensor for calibrating the scale body.

[0007] Preferably, rotating blocks are rotatably provided on both outer walls of the rotating plate, a connecting block is rotatably provided at one end of the rotating block, and a locking bolt is threaded onto one end of the connecting block.

[0008] Preferably, a T-shaped positioning block is provided on the outer wall of the other side of the weighing bar, and threaded holes adapted to the locking bolts are provided at both ends of the T-shaped positioning block.

[0009] Preferably, a connecting part for connecting the scale rod is provided on one side of the scale body, a rotating rod is provided inside the connecting part, a chuck is provided at one end of the rotating rod, the rotating rod is rotatably connected to the bottom of the scale rod, and a positioning component for positioning the chuck is provided outside the scale rod.

[0010] Preferably, the positioning component includes a mounting block disposed on the outer wall of the weighing bar, a pull rod movably disposed inside the mounting block, a locking block disposed at one end of the pull rod, a locking groove adapted to the locking block being opened on the outer wall of the chuck, a compression spring being sleeved on the outside of the pull rod, one end of the compression spring being connected to the side wall of the locking block, and the other end of the compression spring being connected to the side wall of the mounting block.

[0011] Preferably, the outer wall of the weighing bar is also provided with a controller for controlling the pressure of the electric push rod.

[0012] The advantages of this utility model application compared to the prior art are:

[0013] 1. By rotating the electric push rod, the telescopic end of the electric push rod and the pressure sensor are positioned at the center of the scale body. Calibration is performed at the center of the scale body to increase calibration accuracy. Finally, the controller controls the pressure of the telescopic end of the electric push rod when it is working. When the telescopic end of the electric push rod is working, it will cause the pressure sensor to contact the top of the scale body. By observing whether the value displayed by the pressure sensor is consistent with the value displayed by the electronic scale, the calibration of the electronic scale is completed, improving the accuracy of calibration. After calibration, the electric push rod and pressure sensor can be stored on the side wall of the scale arm. The above device allows the electronic scale to be calibrated anytime and anywhere.

[0014] 2. By pulling the lever, the locking block at one end of the lever moves away from the slot outside the chuck. Then, rotate the scale bar so that it can be folded on top of the scale body. After that, release the lever so that the locking block inserts into another slot in the chuck, thereby limiting the position of the scale bar and making it convenient to carry and transport the electronic scale. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a calibration device for electronic scales.

[0016] Figure 2 This is a schematic diagram of some components in a calibration device for an electronic scale.

[0017] Figure 3 This is a schematic diagram of the positioning component in a calibration device for an electronic scale.

[0018] Figure 4 This is a schematic diagram of the locking bolt in a calibration device for an electronic scale.

[0019] Figure 5 This is a schematic diagram of the structure of a calibration device for electronic scales during calibration.

[0020] Figure 6 This is a schematic diagram of the structure of an electronic scale storage device in a calibration apparatus for electronic scales.

[0021] The following are the labels in the diagram: 1. Scale body; 2. Connecting part; 3. Scale beam; 4. Rotating plate; 5. Controller; 6. T-shaped positioning block; 7. Connecting block; 8. Rotating block; 9. Electric push rod; 10. Mounting block; 11. Chuck; 12. Rotating rod; 13. Locking block; 14. Compression spring; 15. Pull rod; 16. Locking bolt; 17. Fixing block; 18. Support block; 19. Pressure sensor. Detailed Implementation

[0022] To further understand the features, technical means, and specific objectives and functions achieved by this utility model application, the following detailed description of this utility model application is provided in conjunction with the accompanying drawings and specific embodiments.

[0023] like Figures 1 to 6 As shown, this utility model application provides:

[0024] A calibration device for an electronic scale includes a scale body 1 and a scale rod 3. Symmetrical fixing blocks 17 are provided on the outer wall of the scale rod 3. A rotating plate 4 is rotatably arranged between the two fixing blocks 17. A support block 18 is provided on the side wall of the rotating plate 4. An electric push rod 9 for providing calibration pressure is rotatably arranged on the top of the support block 18. A pressure sensor 19 for calibrating the scale body 1 is provided at the telescopic end of the electric push rod 9.

[0025] By rotating the electric push rod 9, the telescopic end of the electric push rod 9 and the pressure sensor 19 are kept perpendicular to the scale body 1. Finally, the controller 5 controls the pressure of the telescopic end of the electric push rod 9 when it is working. When the telescopic end of the electric push rod 9 is working, it will cause the pressure sensor 19 to come into contact with the top of the scale body 1. By observing whether the value displayed by the pressure sensor 19 is consistent with the value displayed by the electronic scale, the calibration of the electronic scale is completed.

[0026] like Figure 4 As shown, rotating blocks 8 are rotatably mounted on both outer walls of the rotating plate 4, and a connecting block 7 is rotatably mounted on one end of the rotating block 8. A locking bolt 16 is threaded onto one end of the connecting block 7.

[0027] By rotating the locking bolt 16 installed on the side wall of the connecting block 7, the locking bolt 16 is disengaged from the T-shaped positioning block 6. At this time, the rotating plate 4 can be rotated so that the rotating plate 4 is parallel to the scale body 1. Then, the rotating block 8 and the connecting block 7 are straightened so that the locking bolt 16 on the side wall of the connecting block 7 can be reconnected to the T-shaped positioning block 6. At this time, the rotating plate 4 will not shake under the action of the locking bolt 16.

[0028] like Figure 6 As shown, a T-shaped positioning block 6 is provided on the outer wall of the other side of the weighing beam 3. Both ends of the T-shaped positioning block 6 are provided with threaded holes that are compatible with the locking bolt 16.

[0029] By using the T-shaped positioning block 6 in conjunction with the T-shaped positioning block 6, the rotating plate 4 can be positioned effectively, preventing the rotating plate 4 from shaking during operation.

[0030] like Figure 3 As shown, a connecting part 2 for connecting the weighing rod 3 is provided on one side of the weighing body 1. A rotating rod 12 is provided inside the connecting part 2. A chuck 11 is provided at one end of the rotating rod 12. The rotating rod 12 is rotatably connected to the bottom of the weighing rod 3. A positioning component for positioning the chuck 11 is provided on the outside of the weighing rod 3.

[0031] The rotatable weighing beam 3 allows the electronic scale to be folded onto the top of the scale body 1 during transportation and carrying, making it convenient to carry and transport.

[0032] like Figure 3 As shown, the positioning component includes a mounting block 10 disposed on the outer wall of the weighing bar 3. A pull rod 15 is movably disposed inside the mounting block 10. A locking block 13 is disposed at one end of the pull rod 15. A locking groove adapted to the locking block 13 is opened on the outer wall of the chuck 11. A compression spring 14 is sleeved on the outside of the pull rod 15. One end of the compression spring 14 is connected to the side wall of the locking block 13, and the other end of the compression spring 14 is connected to the side wall of the mounting block 10.

[0033] By pulling the lever 15, the locking block 13 at one end of the lever 15 is moved away from the slot outside the chuck 11. Then, the weighing rod 3 is rotated so that the weighing rod 3 can be folded on top of the weighing body 1. Then, the lever 15 is released so that the locking block 13 is inserted into another slot of the chuck 11, thereby limiting the weighing rod 3 and preventing the weighing rod 3 from shaking randomly during transportation and carrying.

[0034] like Figure 6 As shown, the outer wall of the weighing beam 3 is also equipped with a controller 5 for controlling the pressure of the electric push rod 9.

[0035] The controller 5 controls the pressure of the telescopic end of the electric push rod 9 during operation, and in conjunction with the pressure sensor 19, the electronic scale can be calibrated quickly.

[0036] Working principle: When the electronic scale needs to be calibrated for external use, first rotate the locking bolt 16 installed on the side wall of the connecting block 7 to disengage it from the T-shaped positioning block 6. Then, rotate the rotating plate 4 to make it parallel to the scale body 1. Next, straighten the rotating block 8 and the connecting block 7 so that the locking bolt 16 on the side wall of the connecting block 7 can reconnect with the T-shaped positioning block 6. At this point, the rotating plate 4 will not wobble under the action of the locking bolt 16. Then, rotate the electric push rod 9 so that the extension end of the electric push rod 9 and the pressure sensor 19 are located at the center of the scale body 1. Calibration is performed at the center of the scale body 1 to increase the accuracy of the calibration. Finally, the controller 5 controls the pressure of the extension end of the electric push rod 9 during operation. When the telescopic end of rod 9 is working, it will cause pressure sensor 19 to come into contact with the top of scale body 1. By observing whether the value displayed by pressure sensor 19 is consistent with the value displayed by the electronic scale, the calibration of the electronic scale is completed. After calibration, electric push rod 9 and pressure sensor 19 can be stored on the side wall of scale rod 3. The electronic scale can be calibrated anytime and anywhere through the above device. When it is necessary to store and move the electronic scale, pull rod 15 so that the locking block 13 at one end of pull rod 15 moves away from the slot outside the chuck 11. Then rotate scale rod 3 so that scale rod 3 can be folded on the top of scale body 1. Then release pull rod 15 so that locking block 13 is inserted into another slot of chuck 11, thereby limiting scale rod 3 and facilitating the carrying and transportation of electronic scale.

[0037] The above embodiments merely illustrate one or several implementation methods of a calibration device for an electronic scale according to this utility model application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model application, and these all fall within the protection scope of this utility model application. Therefore, the protection scope of this utility model application should be determined by the appended claims.

[0038] In this utility model application, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements or an interaction between two elements. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model application according to the specific circumstances.

Claims

1. A calibration device for electronic scales, characterized in that, The weighing system includes a weighing body (1) and a weighing rod (3). The outer wall of the weighing rod (3) is provided with symmetrical fixing blocks (17). A rotating plate (4) is rotatably provided between the two fixing blocks (17). A support block (18) is provided on the side wall of the rotating plate (4). An electric push rod (9) for providing calibration pressure is rotatably provided on the top of the support block (18). A pressure sensor (19) for calibrating the weighing body (1) is provided at the telescopic end of the electric push rod (9).

2. The calibration device for an electronic scale according to claim 1, characterized in that, The rotating plate (4) has rotating blocks (8) rotatably mounted on both outer walls. A connecting block (7) is rotatably mounted on one end of the rotating block (8), and a locking bolt (16) is threaded onto one end of the connecting block (7).

3. The calibration device for an electronic scale according to claim 2, characterized in that, A T-shaped positioning block (6) is provided on the outer wall of the other side of the weighing bar (3). Both ends of the T-shaped positioning block (6) are provided with threaded holes that are compatible with the locking bolt (16).

4. The calibration device for an electronic scale according to claim 1, characterized in that, The scale body (1) has a connecting part (2) for connecting the scale rod (3) on one side. The connecting part (2) has a rotating rod (12) inside. One end of the rotating rod (12) has a chuck (11). The rotating rod (12) is rotatably connected to the bottom of the scale rod (3). The scale rod (3) has a positioning component for positioning the chuck (11) on the outside.

5. The calibration device for an electronic scale according to claim 4, characterized in that, The positioning component includes a mounting block (10) disposed on the outer wall of the weighing bar (3). A pull rod (15) is movably disposed inside the mounting block (10). A locking block (13) is disposed at one end of the pull rod (15). A locking groove adapted to the locking block (13) is opened on the outer wall of the chuck (11). A compression spring (14) is sleeved on the outside of the pull rod (15). One end of the compression spring (14) is connected to the side wall of the locking block (13), and the other end of the compression spring (14) is connected to the side wall of the mounting block (10).

6. The calibration device for an electronic scale according to claim 1, characterized in that, The outer wall of the weighing bar (3) is also provided with a controller (5) for controlling the pressure of the electric push rod (9).

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