Electronic scale calibration device

Abstract

The present application is suitable for electronic scale related technical field, provide a kind of electronic scale calibration device, the device includes calibration box, multipoint calibration component, drive cylinder and calibration placement plate;Its characterized in that, the device further includes lateral adjustment component, for adjusting the spacing between auxiliary calibration unit and middle calibration unit;Positioning installation component, for the rotary positioning connection of calibration placement plate;Level meter;Horizontal adjustment component, for adjusting the levelness of calibration placement plate;So multiple model size electronic scale multipoint calibration can be realized, and the levelness of calibration placement plate can be ensured in real time to improve the authenticity of calibration result, effectively solve the calibration result data of existing electronic scale calibration device if using single-point calibration is too single;There is limitation in the range of applicable electronic scale model using multipoint calibration, then there is low overall device applicability and levelness cannot be adjusted also exist the problem of affecting calibration effect.

Description

Technical Field

[0001] The present invention belongs to the technical field related to electronic scales, and in particular relates to an electronic scale calibration device. Background Art

[0002] An electronic scale is a type of weighing instrument that uses Hooke's law or the principle of lever balance of force to measure the mass of an object.

[0003] If the existing electronic scale calibration device uses single-point calibration, the calibration result data is too simple and not convincing; if multi-point calibration is used, the range of applicable electronic scale models is limited, the position of multi-point calibration cannot be adjusted, and the appropriate calibration position cannot be selected according to the model and size of the electronic scale, which leads to the problem of low applicability of the overall device. In addition, the levelness cannot be adjusted, which also affects the calibration effect. Based on this, we propose an electronic scale calibration device for solving the above problems. Summary of the Invention

[0004] The purpose of the embodiments of the present invention is to provide an electronic scale calibration device, which aims to solve the problem that the calibration result data of the existing electronic scale calibration device is too simple and not convincing when using single-point calibration; the use of multi-point calibration has limitations on the range of applicable electronic scale models, the position of the multi-point calibration cannot be adjusted, and the appropriate calibration position cannot be selected according to the model and size of the electronic scale, resulting in low applicability of the overall device. In addition, the problem that the levelness cannot be adjusted also affects the calibration effect.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] An electronic scale calibration device, comprising a calibration box, a multi-point calibration assembly, a driving cylinder for driving the multi-point calibration assembly to apply pressure, and a calibration placement plate for placing the electronic scale; the multi-point calibration assembly comprises a central calibration unit and auxiliary calibration units arranged on both sides of the central calibration unit; the device also includes:

[0007] A lateral adjustment component is slidably arranged on the top of the calibration box and is used to adjust the distance between the auxiliary calibration unit and the middle calibration unit;

[0008] A positioning installation assembly is provided on the bottom inner wall of the calibration box and is used for the rotational positioning connection of the calibration placement plate;

[0009] A level, provided on the calibration plate, for measuring the levelness of the calibration plate;

[0010] A level adjustment assembly is provided on both sides of the positioning installation assembly and is located at the bottom of the calibration placement plate, and is used to adjust the levelness of the calibration placement plate;

[0011] The lateral adjustment assembly comprises a connecting unit for assisting the positioning and installation of the auxiliary calibration unit and a driving positioning unit for adjusting the spacing between the middle calibration unit and the auxiliary calibration unit.

[0012] The middle calibration unit is connected to the telescopic end of the driving cylinder through a driving guide plate, and the connecting unit is in sliding connection with the top of the calibration box and the driving guide plate.

[0013] Preferably, the connecting unit comprises a vertical connecting plate slidingly arranged in the inner wall of the top of the calibration box, a transition connecting plate elastically slidingly arranged in the vertical connecting plate, and a horizontal connecting plate fixedly connected to the bottom of the transition connecting plate.

[0014] The horizontal connecting plate is elastically slidingly arranged on the driving guide plate, and the auxiliary calibration unit is arranged at the bottom of the horizontal connecting plate.

[0015] Preferably, the driving positioning unit comprises an L-shaped mounting plate fixedly arranged on the horizontal connecting plate, a rack plate fixedly arranged on the L-shaped mounting plate, a gear column in meshing connection with the rack plate, a transition transmission shaft in power transmission between the gear column, and a driving motor for driving the transition transmission shaft.

[0016] The driving motor is a double-shaft driving motor, the gear column is rotationally arranged on the side wall of the calibration box, the transition transmission shaft is in transmission connection with the gear column through a bevel gear pair, and the driving motor is arranged on the side wall of the calibration box through a fixing seat.

[0017] Preferably, the driving positioning unit comprises an L-shaped manual connecting plate fixedly arranged on the horizontal connecting plate, a positioning frame fixedly arranged at the end of the L-shaped manual connecting plate, a T-shaped stretching rod slidingly arranged in the positioning frame, positioning rods and a pulling handle fixedly arranged at both ends of the T-shaped stretching rod, positioning holes in mutual cooperation with the positioning rods, and a return spring sleeved on the T-shaped stretching rod.

[0018] The positioning holes are evenly arranged on the driving guide plate.

[0019] Preferably, the middle calibration unit and the auxiliary calibration unit each comprise a calibration connecting rod, a calibration plate, a pressure sensor, and a display screen arranged on the calibration box.

[0020] The calibration connecting rod is respectively connected to the bottom of the driving guide plate and the horizontal connecting plate, and the pressure sensor and the calibration plate are arranged in sequence at the bottom of the calibration connecting rod.

[0021] Preferably, the positioning and installation assembly comprises a support frame fixedly arranged on the inner wall of the bottom of the calibration box, a guide sleeve fixedly arranged on the top of the middle of the support frame, and a support guide rod elastically slidingly arranged in the guide sleeve.

[0022] The calibration placement plate is rotationally arranged on the support guide rod.

[0023] Preferably, the horizontal adjustment assembly comprises a polygonal adjustment frame fixedly arranged on the inner wall of the bottom of the calibration box, a lead screw rotationally arranged in the polygonal adjustment frame, a polygonal driving slider matched with the lead screw, a driving rotation shaft for driving the rotation of the lead screw, a connecting bracket slidingly arranged on the polygonal adjustment frame, and a movable ball rotationally arranged on the top of the connecting bracket.

[0024] The driving rotation shaft and the lead screw are connected through a bevel gear pair, the connecting bracket is fixedly arranged on the polygonal driving slider, and the calibration placement plate is movably attached to the movable ball.

[0025] The beneficial effects of the present application are as follows:

[0026] The electronic scale calibration device provided by the present application comprises a calibration placement plate, a positioning installation assembly, a horizontal adjustment assembly, a horizontal instrument, a multi-point calibration assembly, a horizontal adjustment assembly and a horizontal instrument, wherein the multi-point calibration assembly is composed of a middle calibration unit and auxiliary calibration units arranged on both sides of the middle calibration unit, the horizontal adjustment assembly comprises a connecting unit for positioning installation of the auxiliary calibration units and a driving positioning unit for adjusting and positioning the distance between the middle calibration unit and the auxiliary calibration units, and the middle calibration unit is connected to the extension end of the driving cylinder through a driving guide plate. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced as follows, and obviously, other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0028] Figure 1A schematic diagram of the overall structure of an electronic scale calibration device provided by an embodiment of the present invention;

[0029] Figure 2 The embodiment of the present invention provides Figure 1 The cross-sectional view of the structure Figure 1 .

[0030] Figure 3 The embodiment of the present invention provides Figure 2 Schematic diagram of the structure at point A.

[0031] Figure 4 The embodiment of the present invention provides Figure 2 Schematic diagram of the structure at point B.

[0032] Figure 5 The embodiment of the present invention provides Figure 1 Structural diagram of the cross-section view Figure 2 .

[0033] Figure 6 The embodiment of the present invention provides Figure 5 Schematic diagram of the structure at point C in the middle.

[0034] Figure 7 The embodiment of the present invention provides Figure 1 Schematic diagram of the three-dimensional structure of the L-shaped mounting plate and rack plate combination.

[0035] Description of the numbers in the figure:

[0036] 1. Calibration box; 2. Multi-point calibration assembly; 3. Drive cylinder; 4. Calibration placement plate; 5. Lateral adjustment assembly; 6. Positioning installation assembly; 7. Level; 8. Horizontal adjustment assembly; 9. Vertical connecting plate; 10. Transition connecting plate; 11. Horizontal connecting plate; 12. L-shaped mounting plate; 13. Rack plate; 14. Gear column; 15. Transition transmission shaft; 16. Drive motor; 17. L-shaped manual connecting plate; 18. Positioning frame; 19. T-shaped stretching rod; 20. Positioning rod; 21. Pull handle; 22. Positioning hole; 23. Reset spring; 24. Drive guide plate; 25. Calibration connecting rod; 26. Calibration plate; 27. Pressure sensor; 28. Display screen; 29. ​​Support frame; 30. Guide sleeve; 31. Support guide rod; 32. Polygonal adjustment frame; 33. Screw; 34. Polygonal drive slider; 35. Drive shaft; 36. Connecting bracket; 37. Movable ball bearing. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] Combine Figures 1-7 FIG. 1 is a structural diagram of an electronic scale calibration device according to an embodiment of the present invention, comprising a calibration box 1, a multi-point calibration assembly 2, a driving cylinder 3 for driving the multi-point calibration assembly 2 to apply pressure, and a calibration placement plate 4 for placing the electronic scale; the multi-point calibration assembly 2 comprises a central calibration unit and auxiliary calibration units arranged on both sides of the central calibration unit. The device further comprises:

[0039] A lateral adjustment component 5 is slidably arranged on the top of the calibration box 1 and is used to adjust the distance between the auxiliary calibration unit and the middle calibration unit;

[0040] The positioning and mounting assembly 6 is provided on the bottom inner wall of the calibration box 1 and is used for the rotational positioning connection of the calibration placement plate 4;

[0041] A level 7 is provided on the calibration plate 4 and is used to measure the levelness of the calibration plate 4;

[0042] The level adjustment assembly 8 is provided on both sides of the positioning and mounting assembly 6 and is located at the bottom of the calibration placement plate 4, and is used to adjust the levelness of the calibration placement plate 4;

[0043] The lateral adjustment assembly 5 includes a connection unit for positioning and installing the auxiliary calibration unit and a driving positioning unit for adjusting and positioning the distance between the middle calibration unit and the auxiliary calibration unit;

[0044] The middle calibration unit is connected to the telescopic end of the driving cylinder 3 through the driving guide plate 24, and the connecting unit is slidably connected to the top of the calibration box 1 and the driving guide plate 24.

[0045] In the actual application process of the embodiment, the lateral adjusting assembly 5 and the joint action of the positioning and mounting assembly 6, the horizontal adjusting assembly 8 and the level meter 7 are provided, wherein the multi-point calibration assembly 2 is composed of a middle calibration unit and auxiliary calibration units arranged on both sides of the middle calibration unit, the lateral adjusting assembly 5 includes a connecting unit for positioning and mounting the auxiliary calibration units and a driving positioning unit for adjusting and positioning the spacing between the middle calibration unit and the auxiliary calibration units, the middle calibration unit is connected to the telescopic end of the driving cylinder 3 through the driving guide plate 24, and in the calibration process of the electronic scale, the levelness of the calibration placement plate 4 is adjusted through the joint action of the positioning and mounting assembly 6, the horizontal adjusting assembly 8 and the level meter 7, then the middle part of the electronic scale is placed directly below the middle calibration unit, the spacing between the middle calibration unit and the auxiliary calibration units is adjusted through the driving positioning unit according to the model size of the electronic scale and the multi-point calibration in the calibration process, and the electronic scale is forced to calibrate through the driving cylinder 3, so that multi-point calibration of electronic scales of various models and sizes can be realized, the levelness of the calibration placement plate 4 can be ensured in real time to improve the authenticity of the calibration result, and the problems that the calibration result data is too single and not persuasive if single-point calibration is used, and the range of applicable electronic scale models is limited, the calibration position cannot be adjusted, and the calibration position cannot be selected according to the model size of the electronic scale, thereby the overall device applicability is low and the levelness cannot be adjusted, which affects the calibration effect.

[0046] As a preferred embodiment of the present application, the connecting unit includes a vertical connecting plate 9 slidingly arranged on the inner wall of the top of the calibration box 1, a transition connecting plate 10 elastically slidingly arranged on the vertical connecting plate 9, and a horizontal connecting plate 11 fixedly connected to the bottom of the transition connecting plate 10.

[0047] The horizontal connecting plate 11 is elastically slidingly arranged on the driving guide plate 24, and the auxiliary calibration unit is arranged at the bottom of the horizontal connecting plate 11.

[0048] In the actual application process of the embodiment, the joint action of the vertical connecting plate 9, the transition connecting plate 10 elastically slidingly arranged on the vertical connecting plate 9 and the horizontal connecting plate 11 provides a mounting and positioning surface for the auxiliary calibration unit.

[0049] As a preferred embodiment of the present application, the driving positioning unit includes an L-shaped mounting plate 12 fixedly arranged on the horizontal connecting plate 11, a rack plate 13 fixedly arranged on the L-shaped mounting plate 12, a gear column 14 meshing with the rack plate 13, a transition transmission shaft 15 for power transmission between the gear column 14, and a driving motor 16 for driving the transition transmission shaft 15.

[0050] The driving motor 16 is a double-shaft driving motor 16, the gear column 14 is rotationally arranged on the side wall of the calibration box 1, the transition transmission shaft 15 is connected with the gear column 14 through a bevel gear pair, the driving motor 16 is arranged on the side wall of the calibration box 1 through a fixing seat, the transition transmission shaft 15 is rotationally arranged on the positioning support on the side wall of the calibration box 1, and the L-shaped mounting plate 12 is slidingly arranged on the side wall of the calibration box.

[0051] In the actual application process of the embodiment, the driving motor 16 is a double-shaft driving motor 16, the transition transmission shaft 15 is connected with the gear column 14 through a bevel gear pair, and the gear column 14 is meshed with the rack plate 13. When the spacing between the middle calibration unit and the auxiliary calibration unit needs to be adjusted, the double-shaft driving motor 16 is driven to drive the auxiliary calibration units on both sides of the middle calibration unit to move away from or towards the middle calibration unit, so that multi-point calibration of electronic scales of various sizes can be realized.

[0052] As a preferred embodiment of the application, the driving positioning unit comprises an L-shaped manual connecting plate 17 fixedly arranged on the transverse connecting plate 11, a positioning frame 18 fixedly arranged at the end of the L-shaped manual connecting plate 17, a T-shaped stretching rod 19 slidingly arranged in the positioning frame 18, a positioning rod 20 and a pulling handle 21 fixedly arranged at both ends of the T-shaped stretching rod 19, a positioning hole 22 matched with the positioning rod 20, and a reset spring 23 sleeved on the T-shaped stretching rod 19.

[0053] The positioning holes 22 are evenly arranged on the driving guide plate 24.

[0054] In the actual application process of the embodiment, the mutual cooperation of the positioning rod 20 and the positioning hole 22 can manually adjust the spacing between the middle calibration unit and the auxiliary calibration unit as needed, so that multi-point calibration of electronic scales of various sizes can be realized.

[0055] As a preferred embodiment of the application, the middle calibration unit and the auxiliary calibration unit each comprise a calibration connecting rod 25, a calibration plate 26, a pressure sensor 27, and a display screen 28 with a processor arranged on the calibration box 1.

[0056] The calibration connecting rod 25 is connected to the driving guide plate 24 and the bottom of the transverse connecting plate 11, respectively, and the pressure sensor 27 and the calibration plate 26 are arranged in sequence at the bottom of the calibration connecting rod 25.

[0057] In actual application, the calibration plate 26 is pushed down and pressed on the scale platform of the electronic scale by the driving cylinder 3, the pressure sensor 27 detects the downward pressure of the calibration plate 26 on the electronic scale and transmits the detection data to the processor, and the display screen 28 displays the data processed by the processor for the staff to check. The staff only needs to compare the value displayed on the display screen 28 with the value displayed on the electronic scale to determine the error of the electronic scale, then adjust the downward pressure of the driving cylinder 3 and push the calibration plate 26 down and press it on the scale platform of the electronic scale again, and the calibration of the electronic scale can be completed after several repeated measurements.

[0058] As a preferred embodiment of the present application, the positioning and mounting assembly 6 comprises a support frame 29 fixedly arranged on the inner wall of the bottom of the calibration box 1, a guide sleeve 30 fixedly arranged on the top middle part of the support frame 29, and a support guide rod 31 elastically and slidingly arranged in the guide sleeve 30.

[0059] The calibration placement plate 4 is rotationally arranged on the support guide rod 31.

[0060] In actual application, the support frame 29, the guide sleeve 30, and the support guide rod 31 elastically and slidingly arranged in the guide sleeve 30 are arranged, and the calibration placement plate 4 is rotationally arranged on the support guide rod 31, so that the calibration placement plate 4 can be in an adjustable dynamic support state, thereby facilitating the adjustment of the levelness when needed.

[0061] As a preferred embodiment of the present application, the horizontal adjustment assembly 8 comprises a polygonal adjustment frame 32 fixedly arranged on the inner wall of the bottom of the calibration box 1, a lead screw 33 rotationally arranged in the polygonal adjustment frame 32, a polygonal driving slider 34 matched with the lead screw 33, a driving rotating shaft 35 for driving the lead screw 33 to rotate, a connecting bracket 36 slidingly arranged on the polygonal adjustment frame 32, and a movable ball 37 movably arranged on the top of the connecting bracket 36.

[0062] The driving rotating shaft 35 is connected with the lead screw 33 through a bevel gear pair, the connecting bracket 36 is fixedly arranged on the polygonal driving slider 34, and the calibration placement plate 4 is movably attached to the movable ball 37.

[0063] In actual application, the driving rotating shaft 35, the polygonal adjustment frame 32, the lead screw 33 rotationally arranged in the polygonal adjustment frame 32, and the polygonal driving slider 34 matched with the lead screw 33 are arranged, when it is necessary to adjust the levelness of the calibration placement plate 4, the lead screw 33 is driven to rotate by the driving rotating shaft 35, thereby driving the polygonal driving slider 34 to move vertically, so that the levelness of the calibration placement plate 4 is effectively adjusted according to the level meter 7 to ensure the accuracy of the calibration result of the electronic scale.

[0064] In the description of the application, the description of the terms "one embodiment", "an example", "a specific example" and the like is intended to mean that the particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. Descriptive terms of the above terms in the specification do not necessarily refer to the same embodiment or example. Moreover, the particular features, structures, materials or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0065] The above shows and describes the basic principles, main features and advantages of the application. Those skilled in the art should understand that the application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the application. Without departing from the spirit and scope of the application, various changes and improvements can be made to the application, and these changes and improvements all fall within the scope of the application.

Claims

1. An electronic scale calibration device, comprising a calibration box, a multi-point calibration assembly, a driving cylinder for driving the multi-point calibration assembly to apply pressure, and a calibration placement plate for placing the electronic scale; characterized in that: The multi-point calibration assembly is composed of a central calibration unit and auxiliary calibration units arranged on both sides of the central calibration unit. The device also includes: A lateral adjustment component is slidably arranged on the top of the calibration box and is used to adjust the distance between the auxiliary calibration unit and the middle calibration unit; A positioning installation assembly is provided on the bottom inner wall of the calibration box and is used for the rotational positioning connection of the calibration placement plate; A level, provided on the calibration plate, for measuring the levelness of the calibration plate; A level adjustment assembly is provided on both sides of the positioning installation assembly and is located at the bottom of the calibration placement plate, and is used to adjust the levelness of the calibration placement plate; Wherein, the lateral adjustment assembly includes a connection unit for positioning and installing the auxiliary calibration unit and a driving positioning unit for adjusting and positioning the distance between the middle calibration unit and the auxiliary calibration unit; The connecting unit includes a vertical connecting plate slidably arranged on the top inner wall of the calibration box, a transition connecting plate elastically slidably arranged on the vertical connecting plate, and a transverse connecting plate fixedly connected to the bottom of the transition connecting plate; the transverse connecting plate is elastically slidably arranged on the driving guide plate, and the auxiliary calibration unit is arranged at the bottom of the transverse connecting plate; The driving and positioning unit includes an L-shaped mounting plate fixedly mounted on the transverse connecting plate, a rack plate fixedly mounted on the L-shaped mounting plate, a gear column meshing with the rack plate, a transition transmission shaft for transmitting power to the gear column, and a driving motor for driving the transition transmission shaft; The middle calibration unit is connected to the telescopic end of the driving cylinder through a driving guide plate, and the connecting unit is slidably connected to the top of the calibration box and the driving guide plate.

2. The electronic scale calibration device according to claim 1, characterized in that: The drive motor is a dual-axis drive motor, the gear column is rotatably arranged on the side wall of the calibration box, the transition transmission shaft and the gear column are connected through a bevel gear pair, and the drive motor is arranged on the side wall of the calibration box through a fixed seat.

3. The electronic scale calibration device according to claim 1, characterized in that: The driving positioning unit includes an L-shaped manual connecting plate fixedly arranged on the transverse connecting plate, a positioning frame fixedly arranged at the end of the L-shaped manual connecting plate, a T-shaped stretching rod slidably arranged in the positioning frame, positioning rods and pulling handles fixedly arranged at both ends of the T-shaped stretching rod, positioning holes that cooperate with the positioning rods, and a reset spring sleeved on the T-shaped stretching rod; The positioning holes are evenly arranged on the driving guide plate.

4. The electronic scale calibration device according to claim 1, characterized in that: The middle calibration unit and the auxiliary calibration unit each include a calibration connecting rod, a calibration plate, a pressure sensor, and a display screen arranged on the calibration box; Wherein, the calibration connecting rod is respectively connected to the bottom of the driving guide plate and the transverse connecting plate, and the pressure sensor and the calibration plate are arranged in sequence at the bottom of the calibration connecting rod.

5. The electronic scale calibration device according to claim 1, characterized in that: The positioning and installation assembly includes a support frame fixedly arranged on the inner wall of the bottom of the calibration box, a guide sleeve fixedly arranged on the middle part of the top of the support frame, and a support guide rod elastically slidably arranged in the guide sleeve; The calibration placement plate is rotatably arranged on the supporting guide rod.

6. The electronic scale calibration device according to claim 1, characterized in that: The level adjustment assembly includes a polygonal adjustment frame fixedly arranged on the bottom inner wall of the calibration box, a screw rod rotatably arranged in the polygonal adjustment frame, a polygonal driving slider cooperating with the screw rod, a driving shaft for driving the screw rod to rotate, a connecting bracket slidably arranged on the polygonal adjustment frame, and a movable ball bearing movably arranged on the top of the connecting bracket; The driving shaft and the screw rod are connected via a bevel gear pair, the connecting bracket is fixedly arranged on the polygonal driving slider, and the calibration placement plate is movably fitted with the movable ball.

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