Multifunctional self-calibration electronic weighing apparatus

Abstract

The invention discloses a multifunctional self-calibration electronic weighing apparatus, and relates to the technical field of weighing equipment. The device comprises a bottom plate, angle adjusting structures are fixedly connected to the four corners of the upper end face of the bottom plate, a protection structure is fixedly connected to the upper end faces of the angle adjusting structures, a weight detection structure is fixedly connected to the middle of the lower end face of an inner cavity of the protection structure, and a driving structure is fixedly connected to the middle of the right end face of the inner cavity of the protection structure; through a pressurization structure on a weight detection structure, pressure reduced in equal proportion through an extrusion plate is transmitted to the weight detection structure through downward pressing in use, and then the horizontal height of the extrusion plate is adjusted through a bevel gear and a threaded rod; the placing structure can still be kept in a horizontal state, so that the weight of an object can be accurately weighed at any position, the pressure of the object can be reduced in a fixed proportion during use, and the large-size and large-density object can be rapidly weighed.

Description

Technical Field

[0001] The present invention relates to the technical field of weighing equipment, in particular to a multifunctional self-calibrating electronic weighing scale device. Background Art

[0002] A scale uses Hooke's law or the principle of lever equilibrium to determine the mass of an object. A scale primarily consists of three parts: a load-bearing system (such as the scale pan), a force transmission system (such as the lever force transmission system), and an indication system (such as the dial). Based on their structural principles, scales can be categorized into three main types: mechanical scales, electronic scales, and electromechanical combined scales. Electronic scales currently feature memory and alarm functions, providing multifunctional weighing capabilities.

[0003] After searching, a Chinese utility model patent disclosed a multifunctional weighing device with the publication number CN214200325U, which includes a main body, a weighing plate on the top surface of the main body, a No. 1 rod fixedly connected to the top surface of the weighing plate, a limiting frame movably sleeved on the outer surface of the No. 1 rod, a top plate fixedly connected to the top surface of the limiting frame, a placement slot provided on the side of the main body, and a No. 2 rod fixedly connected to the bottom surface of the placement slot. The multifunctional weighing device is configured by fixing the No. 1 rod to the top surface of the weighing plate, sleeved on the No. 1 rod to the limiting frame, and when weighing a living thing, the limiting frame sleeved on the No. 1 rod and the top plate are used to limit the movement of the living thing, and the weight of the living thing is measured by subtracting the fixed weight of the limiting frame, and a placement slot is provided on the side of the main body, so that the limiting frame can be placed in conjunction with the No. 2 rod in the placement slot. When the limiting frame is not in use, it can be stably placed, and the use effect is good.

[0004] When existing weighing devices are used on slopes, the weight of the items cannot be fully applied vertically to the electronic scale, which seriously affects its working accuracy. At the same time, due to the limited load-bearing capacity of the pressure sensor, when the device weighs large-volume and high-density materials, it needs to be weighed multiple times and the total weight of the items needs to be manually calculated by personnel, which affects the work efficiency of personnel. At the same time, due to the aging of the equipment during long-term use, the measurement data accuracy is limited and errors are prone to occur.

[0005] Therefore, the existing multifunctional self-calibration electronic weighing scale device cannot meet the needs in actual use, so there is an urgent need for improved technology in the market to solve the above problems. Summary of the Invention

[0006] The object of the present invention is to provide a multifunctional self-calibrating electronic weighing scale device, which solves the problems raised in the above background technology through its configuration.

[0007] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] The present invention is a multifunctional self-calibration electronic weighing scale device, comprising a base plate, wherein the four corners of the upper end surface of the base plate are fixedly connected with an angle adjustment structure, the upper end surface of the angle adjustment structure is fixedly connected with a protective structure, the middle part of the lower end surface of the inner cavity of the protective structure is fixedly connected with a weight detection structure, the front and rear sides of the inner cavity of the protective structure are symmetrically provided with a pressurizing structure along the center line, the upper parts of the front and rear sides of the inner cavity of the protective structure are symmetrically connected with a pressure proportional transmission structure along the center line, the upper end surface of the inner cavity of the protective structure is provided with a placement structure, the middle part of the right end surface of the inner cavity of the protective structure is fixedly connected with a driving structure, the front end surface of the driving structure is provided with a weight lifting mechanism, and the four corners of the lower end surface of the base plate are fixedly connected with a fixing structure.

[0009] Preferably, the angle adjustment structure includes a hydraulic telescopic rod fixedly connected to the four corners of the upper end face of the base plate, the upper end face of the hydraulic telescopic rod is fixedly connected to the lower connecting frame, the upper end face of the inner cavity of the lower connecting frame is rotatably connected to the cross shaft, the outer surface of the cross shaft is rotatably connected to the upper connecting frame, and the upper end face of the upper connecting frame is fixedly connected to the protective structure.

[0010] Preferably, the protective structure includes a protective plate fixedly connected to the upper end face of the upper connecting frame, the upper end face of the protective plate is fixedly connected to the protective frame, an electronic processing module is fixedly connected to the lower middle part of the left end face of the protective frame, and a weight detection structure is fixedly connected to the middle part of the upper end face of the protective plate.

[0011] Preferably, the weight detection structure includes a pressure sensor symmetrically fixedly connected to the upper end face of the protective plate along the center line, a balance plate is fixedly connected to the upper end face of the pressure sensor, a data transmission module is fixedly connected to the middle of the upper end face of the protective plate, the pressure sensor is electrically connected to the data transmission module, and the data transmission module is electrically connected to the electronic processing module.

[0012] Preferably, the pressurizing structure includes a threaded rod symmetrically connected to the front and rear end faces of the protective frame along the center line, the outer surface of the threaded rod is threadedly connected to an extrusion plate, a through groove is opened in the middle of the upper end face of the extrusion plate, and the upper end face of the threaded rod is fixedly connected to a bevel gear.

[0013] Preferably, the pressure proportional transmission structure includes an output gear that is symmetrically connected to the upper parts of the front and rear sides of the protective frame in rotation about the center line, the lower part of the outer edge of the output gear is meshed with the bevel gear, and the front and rear end surfaces of the protective frame are symmetrically connected to the input gear in rotation, the input gear and the output gear are meshed with each other, and the radius of the input gear is greater than the radius of the output gear.

[0014] Preferably, the placement structure includes a spring telescopic rod fixedly connected to the four corners of the lower end surface of the protective frame inner cavity, the upper end surface of the spring telescopic rod is fixedly connected to the adjusting gear rod, the upper end surface of the supporting plate is fixedly connected to the supporting plate, and the teeth of two adjacent adjusting gear rods are engaged with the input gear.

[0015] Preferably, the driving structure includes a worm gear symmetrically connected to the middle of the right end face of the protective frame along the center line, the right end face of the inner cavity of the protective frame is located below the worm gear and is rotatably connected to a rotating rod through a bracket, and the middle of the right end face of the inner cavity of the protective frame is fixedly connected to a driving motor, and the left and right rotating shafts between two adjacent rotating rods are fixedly connected to the left and right output ends of the driving motor, and the outer surface of the rotating rod is symmetrically provided with two sections of threads in opposite directions, and the threads on the outer surface of the rotating rod are engaged with the worm gear.

[0016] Preferably, the weight lifting mechanism includes a connecting rod fixedly connected to the front end face of the worm gear, the front end face of the connecting rod is rotatably connected to the left end face of the inner cavity of the protective frame, the outer surface of the connecting rod is transmission-connected with a connecting cable, and the end of the connecting cable away from the connecting rod is fixedly connected to a calibration weight, and the size of the lower end face of the calibration weight is the same as the size of the inner cavity of the through slot.

[0017] Preferably, the fixed structure includes fixed columns fixedly connected to the four corners of the lower end of the base plate, a placement groove is opened in the middle of the lower end surface of the fixed column, and a spring is fixedly connected to the upper end surface of the inner cavity of the placement groove at the lower end of the fixed column, and the lower end surface of the spring is fixedly connected to a limiting cone, and the limiting cone is slidably connected to the inner cavity of the placement groove at the lower end surface of the fixed column.

[0018] The present invention has the following beneficial effects:

[0019] 1. The present invention is provided with an angle adjustment structure on the end surface of the bottom plate. During use, the protective structure is installed and placed through the upper connecting frame. Then, through the extension and contraction of the hydraulic telescopic rod and the rotation of the lower connecting frame and the cross shaft, the protective structure can be kept horizontally placed when located on an inclined plane. During use, the weight detection structure is installed and placed through the protective plate through the protective structure on the angle adjustment structure. Then, the pressurizing structure, the pressure proportional transmission structure and the placement structure are installed and placed through the protective frame. At the same time, the gravity data is calculated and displayed through the electronic processing module. During use, the weight detection structure on the protective structure is used to detect the pressure through the pressure sensor. The pressure generated by the pressurizing structure is detected, and then the pressure sensor is evenly stressed when the pressurizing structure is pressed down through the balance plate. The pressure on the weight detection structure is transmitted to the weight detection structure through the pressure structure after the pressure is reduced in proportion by the extrusion plate during use, and then the horizontal height of the extrusion plate is adjusted by the bevel gear and the threaded rod. When the device is in an inclined plane during use, the placement structure can still maintain a horizontal state, thereby achieving accurate weighing of the weight of the object at any position, achieving a fixed ratio of pressure reduction on the object during use, thereby achieving rapid weighing of large-volume and high-density objects.

[0020] 2. The present invention uses a pressure proportional transmission structure arranged on the protective structure. During use, the weight of the items carried on the placement structure is proportionally reduced through the output gear and the input gear, and then the rotation direction of the pressurizing structure is driven and adjusted through the input gear. Through the placement structure on the protective structure, the height of the load-bearing plate is adjusted through the spring telescopic rod during use, and then the rotation and rotation direction of the input gear are adjusted by adjusting the lifting and lowering of the gear rod. Through the driving structure in the inner cavity of the protective structure, the horizontal height of the calibration weight is adjusted through the worm gear during use, and then the rotation and rotation direction of the worm gear are driven by the rotating rod and the driving motor. Through the weight lifting mechanism on the driving structure, the relative height of the calibration weight is adjusted through the rotation of the connecting rod in cooperation with the connecting cable during use. Through the fixing structure on the bottom plate, the device is placed and supported by the fixed column during use, and then the device is limited and fixed by the limiting cone when it is placed on an inclined surface.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a schematic diagram of the main three-dimensional structure of the present invention;

[0024] Figure 2 This is a bottom-up perspective structural diagram of the present invention;

[0025] Figure 3 This is a schematic diagram of a longitudinal half-section three-dimensional structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the installation structure of the pressurized structure of the present invention;

[0027] Figure 5 For the present invention Figure 2 Schematic diagram of the enlarged structure of area A in the middle;

[0028] Figure 6 This is a schematic diagram of the installation structure of the drive structure of the present invention;

[0029] Figure 7 For the present invention Figure 3 Schematic diagram of the enlarged structure of the middle B area;

[0030] Figure 8 This is a schematic diagram of the fixing structure installation structure of the present invention.

[0031] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0032] 1-base plate, 2-angle adjustment structure, 21-hydraulic telescopic rod, 22-lower connecting frame, 23-cross shaft, 24-upper connecting frame, 3-protective structure, 31-protective plate, 32-protective frame, 33-electronic processing module, 4-weight detection structure, 41-pressure sensor, 42-balance plate, 43-data transmission module, 5-pressurization structure, 51-threaded rod, 52-extrusion plate, 53-bevel gear, 6-pressure proportional transmission structure, 61-output gear, 62-input gear, 7-placing structure, 71-spring telescopic rod, 72-adjusting gear rod, 73-bearing plate, 8-driving structure, 81-worm gear, 82-rotating rod, 83-driving motor, 9-weight lifting mechanism, 91-connecting rod, 92-connecting cable, 93-calibration weight, 10-fixing structure, 101-fixing column, 102-limiting cone. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0034] See also Figure 1-8 As shown, this embodiment is a multifunctional self-calibration electronic weighing scale device, including a base plate 1, the four corners of the upper end face of the base plate 1 are fixedly connected to the angle adjustment structure 2, the upper end face of the angle adjustment structure 2 is fixedly connected to the protective structure 3, the middle part of the lower end face of the inner cavity of the protective structure 3 is fixedly connected to the weight detection structure 4, the front and rear sides of the inner cavity of the protective structure 3 are symmetrically provided with a pressurizing structure 5 along the center line, the upper parts of the front and rear sides of the inner cavity of the protective structure 3 are symmetrically connected to the pressure proportional transmission structure 6 along the center line, the upper end face of the inner cavity of the protective structure 3 is provided with a placing structure 7, the middle part of the right end face of the inner cavity of the protective structure 3 is fixedly connected to a driving structure 8, the front end face of the driving structure 8 is provided with a weight lifting mechanism 9, and the four corners of the lower end face of the base plate 1 are fixedly connected to a fixing structure 10.

[0035] Furthermore, the angle adjustment structure 2 includes a hydraulic telescopic rod 21 fixedly connected to the four corners of the upper end face of the base plate 1, the upper end face of the hydraulic telescopic rod 21 is fixedly connected to the lower connecting frame 22, the upper end face of the inner cavity of the lower connecting frame 22 is rotatably connected to the cross shaft 23, the outer surface of the cross shaft 23 is rotatably connected to the upper connecting frame 24, and the upper end face of the upper connecting frame 24 is fixedly connected to the protective structure 3. Through the angle adjustment structure 2 of the upper end face of the base plate 1, the protective structure 3 is installed and placed through the upper connecting frame 24 during use, and then through the extension and contraction of the hydraulic telescopic rod 21 and the rotation of the lower connecting frame 22 and the cross shaft 23, the protective structure 3 can still be kept horizontally when it is located on an inclined plane. When the device is in an inclined plane during use, the placement structure 7 can still maintain a horizontal state, thereby achieving accurate weighing of the weight of objects at any position.

[0036] Furthermore, the protective structure 3 includes a protective plate 31 fixedly connected to the upper end face of the upper connecting frame 24, a protective frame 32 is fixedly connected to the upper end face of the protective plate 31, an electronic processing module 33 is fixedly connected to the lower middle part of the left end face of the protective frame 32, and a weight detection structure 4 is fixedly connected to the middle part of the upper end face of the protective plate 31. Through the protective structure 3 on the angle adjustment structure 2, the weight detection structure 4 is installed and placed through the protective plate 31 during use, and then the pressurizing structure 5, the pressure proportional transmission structure 6 and the placement structure 7 are installed and placed through the protective frame 32, and the gravity data is calculated and displayed through the electronic processing module 33.

[0037] Furthermore, the weight detection structure 4 includes a pressure sensor 41 symmetrically fixedly connected to the upper end face of the protective plate 31 along the center line, a balance plate 42 is fixedly connected to the upper end face of the pressure sensor 41, and a data transmission module 43 is fixedly connected to the middle part of the upper end face of the protective plate 31. The pressure sensor 41 is electrically connected to the data transmission module 43, and the data transmission module 43 is electrically connected to the electronic processing module 33. Through the weight detection structure 4 on the protective structure 3, the pressure generated by the pressurizing structure 5 is detected by the pressure sensor 41 during use, and then the balance plate 42 is used to ensure that the pressure sensor 41 is evenly stressed when the pressurizing structure 5 is pressed down.

[0038] Furthermore, the pressurizing structure 5 includes a threaded rod 51 which is symmetrically connected to the front and rear end faces of the protective frame 32 and rotates along the center line. The outer surface of the threaded rod 51 is threadedly connected to an extrusion plate 52. A through groove is provided in the middle of the upper end face of the extrusion plate 52. The upper end face of the threaded rod 51 is fixedly connected to a bevel gear 53. Through the pressurizing structure 5 on the weight detection structure 4, the pressure reduced in proportion by the extrusion plate 52 during use is transmitted downward to the weight detection structure 4, and then the horizontal height of the extrusion plate 52 is adjusted by the bevel gear 53 and the threaded rod 51, thereby achieving a fixed-proportion reduction in the pressure on the objects during use, thereby realizing rapid weighing of large-volume and high-density objects.

[0039] Furthermore, the pressure proportional transmission structure 6 includes an output gear 61 that is symmetrically connected to the upper parts of the front and rear sides of the protective frame 32 in rotation about the center line, and the lower outer edge of the output gear 61 is meshed with the bevel gear 53. The front and rear end surfaces of the protective frame 32 are symmetrically connected to the input gear 62 in rotation, and the input gear 62 is meshed with the output gear 61, and the radius of the input gear 62 is greater than the radius of the output gear 61.

[0040] Furthermore, the placement structure 7 includes a spring telescopic rod 71 fixedly connected to the four corners of the lower end surface of the inner cavity of the protective frame 32, the upper end surface of the spring telescopic rod 71 is fixedly connected to the adjusting gear rod 72, and the upper end surface of the supporting plate 73 is fixedly connected to the supporting plate 73. The teeth of two adjacent adjusting gear rods 72 are engaged with the input gear 62. Through the pressure proportional transmission structure 6 on the protective structure 3, the weight of the items carried on the placement structure 7 is proportionally reduced through the output gear 61 and the input gear 62 during use, and then the rotation direction of the pressurizing structure 5 is driven and adjusted through the input gear 62.

[0041] Furthermore, the driving structure 8 includes a worm gear 81 symmetrically connected to the middle of the right end face of the protective frame 32 along the center line, and the right end face of the inner cavity of the protective frame 32 is located at the lower part of the worm gear 81 and is rotatably connected to a rotating rod 82 through a bracket. The middle of the right end face of the inner cavity of the protective frame 32 is fixedly connected to a driving motor 83. The left and right rotating shafts between the two adjacent rotating rods 82 are fixedly connected to the left and right output ends of the driving motor 83. The outer surface of the rotating rod 82 is symmetrically provided with two sections of threads in opposite directions. The outer surface threads of the rotating rod 82 are engaged with the worm gear 81. Through the placement structure 7 on the protective structure 3, the height of the supporting plate 73 is adjusted by the spring telescopic rod 71 during use, and then the rotation and rotation direction of the input gear 62 are adjusted by adjusting the lifting and lowering of the gear rod 72.

[0042] Furthermore, the weight lifting mechanism 9 includes a connecting rod 91 fixedly connected to the front end face of the worm gear 81, the front end face of the connecting rod 91 is rotatably connected to the left end face of the inner cavity of the protective frame 32, the outer surface of the connecting rod 91 is transmission-connected with a connecting cable 92, and the end of the connecting cable 92 away from the connecting rod 91 is fixedly connected to a calibration weight 93, and the size of the lower end face of the calibration weight 93 is the same as the size of the inner cavity of the through groove. Through the driving structure 8 of the inner cavity of the protective structure 3, the horizontal height of the calibration weight 93 is adjusted by the worm gear 81 during use, and then the rotation and rotation direction of the worm gear 81 are driven by the rotating rod 82 and the drive motor 83.

[0043] Furthermore, the fixed structure 10 includes a fixed column 101 fixedly connected to the four corners of the lower end of the base plate 1, a placement groove is opened in the middle of the lower end surface of the fixed column 101, and a spring is fixedly connected to the upper end surface of the inner cavity of the placement groove of the lower end of the fixed column 101, and the lower end surface of the spring is fixedly connected to a limiting cone 102. The limiting cone 102 is slidably connected to the inner cavity of the placement groove of the lower end surface of the fixed column 101. Through the weight lifting mechanism 9 on the driving structure 8, the relative height of the calibration weight 93 is adjusted by rotating the connecting rod 91 in cooperation with the connecting cable 92 during use. Through the fixed structure 10 on the base plate 1, the device is placed and supported by the fixed column 101 during use, and then the device is limited and fixed by the limiting cone 102 when the device is placed on an inclined surface.

[0044] Working principle:

[0045] During operation, the device is placed on the ground, and the weighing material is placed on the upper end surface of the carrying plate 73. At this time, the carrying plate 73 moves downward under the action of the gravity of the material, so the adjusting gear rod 72 slides downward, thereby causing the spring telescopic rod 71 to contract, so that the input gear 62 rotates. At this time, since the input gear 62 is engaged with the output gear 61, the output gear 61 rotates, and then since the output gear 61 is engaged with the bevel gear 53, the bevel gear 53 rotates, so the threaded rod 51 rotates, thereby lowering the height of the extrusion plate 52, thereby pressing down the weight detection structure 4, so that the pressure carried on the carrying plate 73 is reduced by a fixed ratio and transmitted to the pressure sensor 41. At this time, the pressure data detected by the pressure sensor 41 is transmitted to the electronic processing module 33 through the data transmission module 43. At this time, the electronic processing module 33 restores the pressure data transmitted by the electronic processing module 33 through the conversion formula, thereby weighing the material.

[0046] When it is necessary to calibrate the weighing accuracy of the weight detection structure 4, the driving structure 8 is started to rotate the output end of the driving motor 83, so the rotating rod 82 rotates. At this time, since the rotating rod 82 and the worm gear 81 are meshed with each other, the worm gear 81 rotates. Since the connecting rod 91 is fixedly connected to the worm gear 81, the connecting rod 91 rotates, thereby extending the connecting cable 92, so that the height of the calibration weight 93 is reduced, and the calibration weight 93 is placed on the upper end surface of the balance plate 42. At this time, the personnel calibrate the weighing accuracy of the weight detection structure 4 through the electronic processing module 33 and the data transmission module 43, and then rotate the output end of the driving motor 83 in the opposite direction, so the rotating rod 82 is reversed, and the worm gear 81 is reversed, and the connecting rod 91 is further reversed, so the connecting cable 92 is contracted, thereby raising the height of the calibration weight 93, which is convenient for personnel to calibrate the weight detection structure 4.

[0047] When the device is placed on a slope, the inner cavity spring of the fixing column 101 extends, so that the limiting cone 102 is inserted into the soil, thereby fixing the device. At this time, the hydraulic telescopic rod 21 on the low side is started to extend, so the lower connecting frame 22 and the cross shaft 23 rotate. At the same time, the hydraulic telescopic rod 21 on the high side contracts, so that the protective plate 31 is placed horizontally, so that the weight of the object will act vertically on the placement structure 7, thereby accurately weighing the weight of the object.

[0048] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0049] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0050] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A multifunctional self-calibrating electronic weighing scale device, comprising a base plate (1), characterized in that; The four corners of the upper end face of the bottom plate (1) are fixedly connected to an angle adjustment structure (2), the upper end face of the angle adjustment structure (2) is fixedly connected to a protective structure (3), the middle part of the lower end face of the inner cavity of the protective structure (3) is fixedly connected to a weight detection structure (4), the front and rear sides of the inner cavity of the protective structure (3) are symmetrically provided with a pressurizing structure (5) along the center line, the upper parts of the front and rear sides of the inner cavity of the protective structure (3) are symmetrically rotated and connected to a pressure proportional transmission structure (6) along the center line, the upper end face of the inner cavity of the protective structure (3) is provided with a placement structure (7), the middle part of the right end face of the inner cavity of the protective structure (3) is fixedly connected to a driving structure (8), the front end face of the driving structure (8) is provided with a weight lifting mechanism (9), and the four corners of the lower end face of the bottom plate (1) are fixedly connected to a fixing structure (10).

2. A multifunctional self-calibrating electronic weighing scale device according to claim 1, characterized in that: The angle adjustment structure (2) comprises a hydraulic telescopic rod (21) fixedly connected to the four corners of the upper end surface of the base plate (1); the upper end surface of the hydraulic telescopic rod (21) is fixedly connected to a lower connecting frame (22); the upper end surface of the inner cavity of the lower connecting frame (22) is rotatably connected to a cross shaft (23); the outer surface of the cross shaft (23) is rotatably connected to an upper connecting frame (24); and the upper end surface of the upper connecting frame (24) is fixedly connected to a protective structure (3).

3. A multifunctional self-calibrating electronic weighing scale device according to claim 2, characterized in that: The protective structure (3) comprises a protective plate (31) fixedly connected to the upper end surface of the upper connecting frame (24); the upper end surface of the protective plate (31) is fixedly connected to a protective frame (32); an electronic processing module (33) is fixedly connected below the middle of the left end surface of the protective frame (32); and a weight detection structure (4) is fixedly connected to the middle of the upper end surface of the protective plate (31).

4. A multifunctional self-calibrating electronic weighing scale device according to claim 3, characterized in that: The weight detection structure (4) comprises a pressure sensor (41) fixedly connected to the upper end surface of the protective plate (31) symmetrically along the center line, a balance plate (42) fixedly connected to the upper end surface of the pressure sensor (41), a data transmission module (43) fixedly connected to the middle of the upper end surface of the protective plate (31), the pressure sensor (41) and the data transmission module (43) are electrically connected, and the data transmission module (43) is electrically connected to the electronic processing module (33).

5. The multifunctional self-calibrating electronic weighing scale device according to claim 3, characterized in that: The pressurizing structure (5) comprises a threaded rod (51) symmetrically connected to the front and rear end surfaces of the protective frame (32) along a center line, an extrusion plate (52) is threadedly connected to the outer surface of the threaded rod (51), a through groove is provided in the middle of the upper end surface of the extrusion plate (52), and a bevel gear (53) is fixedly connected to the upper end surface of the threaded rod (51).

6. The multifunctional self-calibrating electronic weighing scale device according to claim 5, characterized in that: The pressure proportional transmission structure (6) includes an output gear (61) symmetrically connected to the upper parts of the front and rear sides of the protection frame (32) in a rotationally symmetrical manner along the center line, the lower part of the outer edge of the output gear (61) meshing with the bevel gear (53), and an input gear (62) symmetrically connected to the end surfaces of the front and rear sides of the protection frame (32), the input gear (62) meshing with the output gear (61), and the radius of the input gear (62) is larger than the radius of the output gear (61).

7. A multifunctional self-calibrating electronic weighing scale device according to claim 6, characterized in that: The placement structure (7) comprises a spring telescopic rod (71) fixedly connected to the four corners of the lower end surface of the inner cavity of the protection frame (32); the upper end surface of the spring telescopic rod (71) is fixedly connected to an adjustment gear rod (72); the upper end surface of the support plate (73) is fixedly connected to the support plate (73); and the teeth of two adjacent adjustment gear rods (72) are engaged with the input gear (62).

8. The multifunctional self-calibrating electronic weighing scale device according to claim 3, characterized in that: The driving structure (8) comprises a worm wheel (81) symmetrically connected to the middle of the right end face of the protection frame (32) for rotation along the center line; the right end face of the inner cavity of the protection frame (32) is located below the worm wheel (81) and is rotatably connected to a rotating rod (82) through a bracket; the middle of the right end face of the inner cavity of the protection frame (32) is fixedly connected to a driving motor (83); the left and right rotating shafts between two adjacent rotating rods (82) are fixedly connected to the left and right output ends of the driving motor (83); the outer surface of the rotating rod (82) is symmetrically provided with two sections of threads in opposite directions, and the threads on the outer surface of the rotating rod (82) are meshed with the worm wheel (81).

9. The multifunctional self-calibrating electronic weighing scale device according to claim 8, characterized in that: The weight lifting mechanism (9) comprises a connecting rod (91) fixedly connected to the front end face of the worm gear (81); the front end face of the connecting rod (91) is rotatably connected to the left end face of the inner cavity of the protective frame (32); the outer surface of the connecting rod (91) is connected to a connecting cable (92); one end of the connecting cable (92) away from the connecting rod (91) is fixedly connected to a calibration weight (93); the size of the lower end face of the calibration weight (93) is the same as the size of the inner cavity of the through slot.

10. The multifunctional self-calibrating electronic weighing scale device according to claim 1, characterized in that: The fixing structure (10) comprises a fixing column (101) fixedly connected to the four corners of the lower end of the base plate (1); a placement groove is provided in the middle of the lower end surface of the fixing column (101); a spring is fixedly connected to the upper end surface of the inner cavity of the placement groove at the lower end of the fixing column (101); the lower end surface of the spring is fixedly connected to a limiting cone (102); and the limiting cone (102) is slidably connected to the inner cavity of the placement groove at the lower end surface of the fixing column (101).

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