Double-screen electronic scale

Abstract

A double-screen electronic scale disclosed by the present invention comprises an electronic scale main body, the bottom of the electronic scale main body is fixedly connected with two mounting plates, a bidirectional screw rod is rotatably connected between the two mounting plates, and the external of the bidirectional screw rod is in threaded connection with a sliding block. According to the double-screen electronic scale, a servo motor is controlled to rotate forwards, at the moment, two sliding blocks outside a two-way lead screw are close to each other, a first rotating plate is driven to rotate through a fixing plate, the first rotating plate drives a second rotating plate to rotate until a sliding groove in the second rotating plate extrudes a sliding rod, at the moment, the sliding rod drives a rack to move, and the rack drives a second rotating shaft to rotate through a gear; the second rotating shaft drives the uppermost solar power generation panel to rotate, in the process, under the action of the protruding blocks and the clamping grooves, the solar power generation panels are all unfolded, the solar power generation panels are used for charging a battery in the electronic scale body, the servo motor is controlled to rotate reversely, and then the electronic scale can be retracted, so that the cruising ability of the electronic scale body is ensured, and meanwhile excessive space is not occupied.

Description

Technical Field

[0001] The present invention relates to the technical field of dual-screen electronic scales, and more particularly to a dual-screen electronic scale. Background Art

[0002] A dual-screen electronic scale features two displays, one for customers showing product information and the other for cashiers. This design allows both customers and cashiers to clearly see the information they need, improving transaction efficiency and transparency.

[0003] Currently, many existing dual-screen electronic scales are equipped with built-in rechargeable batteries and are powered by rechargeable batteries. This design makes the dual-screen electronic scale more flexible to use and can be used indoors or outdoors. Users can charge the batteries in the dual-screen electronic scale through a charger to ensure the battery life of the dual-screen electronic scale. However, when used outdoors, if you forget to charge the battery, the dual-screen electronic scale will not work properly. Therefore, we provide a dual-screen electronic scale. Summary of the Invention

[0004] The purpose of the present invention is to provide a dual-screen electronic scale to solve the problems raised in the above background technology: Currently, many dual-screen electronic scales have built-in rechargeable batteries and are powered by rechargeable batteries. This design makes the dual-screen electronic scale more flexible to use and can be used indoors or outdoors. Users can charge the batteries in the dual-screen electronic scale through a charger to ensure the battery life of the dual-screen electronic scale. However, if you forget to charge the battery when using it outdoors, the dual-screen electronic scale will not work properly.

[0005] In order to achieve the above object, the present invention provides the following technical solutions: A dual-screen electronic scale includes an electronic scale body, wherein two mounting plates are fixedly connected to the bottom of the electronic scale body, a bidirectional screw is rotatably connected between the two mounting plates, the external thread of the bidirectional screw is connected to a slider, the external part of the slider is fixedly connected to a fixed plate, the external part of the fixed plate is rotatably connected to a first rotating plate, the external part of the first rotating plate is rotatably connected to a second rotating plate, a first rotating shaft is rotatably connected between the two second rotating plates, the bottom of the first rotating shaft is fixedly connected to a support plate, the top of the support plate is fixedly connected to a sleeve, the external part of the sleeve is provided with a solar power generation panel, and a transmission mechanism is provided on the inner side of the sleeve.

[0006] Preferably, the transmission mechanism includes a second rotating shaft, which is rotatably connected to the support plate. There are four solar panels in total, one of which is fixedly connected to the second rotating shaft. A gear is sleeved on the outside of the second rotating shaft, and the gear is fixedly connected to the second rotating shaft. A rack is slidably connected to the top of the support plate, and the rack is meshed with the gear. A sliding groove is provided inside the second rotating plate, and a sliding rod is slidably connected to the inside of the sliding groove, and the sliding rod is fixedly connected to the rack.

[0007] Preferably, a first limiting groove is opened inside the rack, a first limiting plate is slidably connected inside the first limiting groove, the first limiting plate is fixedly connected to the support plate, and the cross-sections of the first limiting groove and the first limiting plate are both T-shaped structures.

[0008] Preferably, a groove is provided on the upper surface of the solar panel, a protrusion is fixedly connected to the lower surface of the solar panel, and a card slot is provided inside the solar panel, the card slot is connected to the groove, and the card slot is used in conjunction with the protrusion.

[0009] Preferably, a torsion spring is sleeved outside the second rotating shaft and between the solar panel and the gear, one end of the torsion spring is fixedly connected to the sleeve, and the other end of the torsion spring is fixedly connected to the gear.

[0010] Preferably, there are two sliders, which are symmetrically distributed. A second limiting groove is provided on the upper surface of the slider, and a second limiting plate is slidably connected to the inside of the second limiting groove. The second limiting plate is fixedly connected to the electronic scale body.

[0011] Preferably, a servo motor is fixedly connected to one side of the mounting plate, the output shaft of the servo motor vertically passes through the mounting plate and extends to the other side of the mounting plate, the output shaft of the servo motor is rotatably connected to the mounting plate, and the bidirectional screw is fixedly connected to the output end of the servo motor.

[0012] Preferably, the solar power generation panel is a fan-shaped structure.

[0013] Compared with the prior art, the present invention has the following beneficial effects: If the electronic scale body is out of power outdoors or needs to be charged, the servo motor can be controlled to rotate forward. At this time, the two sliders outside the bidirectional screw rod approach each other and drive the first rotating plate to rotate through the fixed plate, and the first rotating plate drives the second rotating plate to rotate. At this time, the four solar panels at the bottom of the electronic scale body slowly extend until the slide groove on the second rotating plate squeezes the slide rod. At this time, the slide rod drives the rack to move, and the rack drives the second rotating shaft to rotate through the gear. The second rotating shaft drives the top solar panel to rotate. During the process, under the action of the protrusions and the slots, the solar panels are fully unfolded, and the solar panels are used to charge the battery in the electronic scale body. The servo motor can be controlled to reverse to retract, ensuring the endurance of the electronic scale body without taking up too much space. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of the solar panel of the present invention before it is unfolded; Figure 2 It is a schematic structural diagram of the solar power generation panel of the present invention after unfolding; Figure 3 It is a structural schematic diagram of the slider of the present invention; Figure 4 It is a structural schematic diagram of the transmission mechanism of the present invention; Figure 5 is a schematic structural diagram of the second rotating plate of the present invention; Figure 6 It is a schematic structural diagram of the rack of the present invention; Figure 7 Schematic diagram of the structure of the solar power generation panel of the present invention; Figure 8 Schematic diagram of the structure of the bump of the present invention.

[0015] Explanation of the numbers in the figure: 1. Electronic scale body; 2. Mounting plate; 3. Bidirectional screw; 4. Slider; 5. Fixed plate; 6. First rotating plate; 7. Second rotating plate; 8. First rotating shaft; 9. Support plate; 10. Sleeve; 11. Solar panel; 12. Transmission mechanism; 13. Second rotating shaft; 14. Gear; 15. Rack; 16. Slide; 17. Slide; 18. First limiting groove; 19. First limiting plate; 20. Groove; 21. Bump; 22. Slot; 23. Torsion spring; 24. Second limiting groove; 25. Second limiting plate; 26. Servo motor. DETAILED DESCRIPTION

[0016] 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 creative efforts are within the scope of protection of the present invention.

[0017] See also Figures 1 to 8 The two mounting plates 2 are connected in a fixed manner at the bottom of the electronic scale body 1. A bidirectional screw rod 3 is rotatably connected between the two mounting plates 2. When the bidirectional screw rod 3 rotates and drives the two sliders 4 to approach each other, the solar power generation panel 11 moves outward as a whole, so that the solar power generation panel 11 extends from the bottom of the electronic scale body 1. The external thread of the bidirectional screw rod 3 is connected to the slider 4. The external of the slider 4 is fixedly connected to the fixing plate 5. The external of the fixing plate 5 is rotatably connected to the first rotating plate 6. The two first rotating plates 6 and the two second rotating plates 7 are cross-arranged. The overall structure is similar to the lifting structure of a cross-type elevator. The external rotation of the first rotating plate 6 is connected to the second rotating plate 7. The first rotating shaft 8 is rotatably connected between the two second rotating plates 7. The bottom of the first rotating shaft 8 is fixedly connected to a supporting plate 9. The top of the supporting plate 9 is fixedly connected to a sleeve 10. The external sleeve 10 is provided with a solar power generation panel 11. The inner side of the sleeve 10 is provided with a transmission mechanism 12. The transmission mechanism 12 drives the solar power generation panel 11 to rotate and unfold automatically.

[0018] Furthermore, the transmission mechanism 12 includes a second rotating shaft 13, which is rotatably connected to the support plate 9. There are four solar panels 11, one of which is fixedly connected to the second rotating shaft 13. A gear 14 is sleeved on the outside of the second rotating shaft 13, and the gear 14 is fixedly connected to the second rotating shaft 13. A rack 15 is slidably connected to the top of the support plate 9, and the rack 15 is meshed with the gear 14. A slide groove 16 is provided inside the second rotating plate 7, and a slide rod 17 is slidably connected to the inside of the slide groove 16. The slide rod 17 is fixedly connected to the rack 15. The slide groove 16 on the second rotating plate 7 consists of two parts, one is a long strip and the other is an arc. The center of the slide groove 16 of the arc structure is on the same axis as the center of the first rotating shaft 8, which means that when the second rotating plate 7 starts to rotate, it will not squeeze the slide rod 17, and the rack 15 will not move at this time. When the slide rod 17 enters the slide groove 16 of the long strip structure, the slide rod 17 will be squeezed. At this time, the slide rod 17 will drive the rack 15 to move, and the rack 15 drives the second rotating shaft 13 to rotate through the gear 14. The existence of the arc-shaped slide groove 16 makes it so that the solar panel 11 does not rotate and expand directly when it moves outward as a whole, but there is a certain gap, which can avoid the solar panel 11 and the electronic scale body 1 from contacting and getting stuck.

[0019] Furthermore, a first limiting groove 18 is opened inside the rack 15, and a first limiting plate 19 is slidably connected inside the first limiting groove 18. The first limiting plate 19 is fixedly connected to the support plate 9. The cross-sections of the first limiting groove 18 and the first limiting plate 19 are both T-shaped structures. The first limiting groove 18 cooperates with the first limiting plate 19 to make the rack 15 move more smoothly and prevent the rack 15 from separating from the support plate 9.

[0020] Furthermore, a groove 20 is provided on the upper surface of the solar panel 11, and a protrusion 21 is fixedly connected to the lower surface of the solar panel 11. A slot 22 is provided inside the solar panel 11, and the slot 22 is communicated with the groove 20. The slot 22 is used in conjunction with the protrusion 21. The groove 20 is an arc-shaped structure, and its center is coaxial with the center of the sleeve 10. The protrusion 21 is made of rubber material and has a certain deformation ability. The top one of the four solar panels 11 is directly driven by the second rotating shaft 13. When the protrusion 21 at its bottom is inserted into the slot 22 on the solar panel 11 below, it will drive the next solar panel 11 to rotate as well, until the three top solar panels 11 are fully unfolded, and the solar panel 11 at the bottom is directly fixed to the sleeve 10.

[0021] Furthermore, a torsion spring 23 is provided on the outside of the second rotating shaft 13 and between the solar panel 11 and the gear 14. One end of the torsion spring 23 is fixedly connected to the sleeve 10, and the other end of the torsion spring 23 is fixedly connected to the gear 14. The torsion spring 23 enables the second rotating shaft 13 to have a tendency to rotate in the forward direction. When the second rotating shaft 13 rotates in the forward direction, the solar panel 11 will gradually unfold.

[0022] Furthermore, there are two sliders 4, which are symmetrically distributed. A second limiting groove 24 is provided on the upper surface of the slider 4. A second limiting plate 25 is slidably connected to the inside of the second limiting groove 24. The second limiting plate 25 is fixedly connected to the electronic scale body 1. The slider 4 is limited by the second limiting groove 24 and the second limiting plate 25. When the bidirectional screw 3 rotates, the two sliders 4 will approach or move away from each other.

[0023] Furthermore, a servo motor 26 is fixedly connected to one side of the mounting plate 2, and the output shaft of the servo motor 26 vertically passes through the mounting plate 2 and extends to the other side of the mounting plate 2. The output shaft of the servo motor 26 is rotatably connected to the mounting plate 2, and the bidirectional screw rod 3 is fixedly connected to the output end of the servo motor 26. The servo motor 26 drives the bidirectional screw rod 3 to rotate, and the bidirectional screw rod 3 drives the two external sliders 4 to move simultaneously.

[0024] Furthermore, the solar power generation panel 11 is a fan-shaped structure. The four solar power generation panels 11 mounted on the outside of the sleeve 10 are evenly spaced up and down. When unfolded, they can form a complete solar power generation panel 11 with a larger area and better power generation effect.

[0025] The steps of using the present invention are as follows: when the dual-screen electronic scale is in use, if the electronic scale body 1 is out of power or needs to be charged outdoors, the user can control the servo motor 26 to rotate forward. At this time, the two sliders 4 outside the bidirectional screw rod 3 approach each other and drive the first rotating plate 6 to rotate through the fixed plate 5, and the first rotating plate 6 drives the second rotating plate 7 to rotate. At this time, the four solar power generation panels 11 located at the bottom of the electronic scale body 1 slowly extend until the slide groove 16 on the second rotating plate 7 squeezes the slide rod 17. At this time, the slide rod 17 drives the rack 15 to move, and the rack 15 drives the second rotating shaft 13 to rotate through the gear 14, and the second rotating shaft 13 drives the top solar power generation panel 11 to rotate. During the process, under the action of the protrusion 21 and the slot 22, the solar power generation panel 11 is fully unfolded, and the solar power generation panel 11 is used to charge the battery in the electronic scale body 1 to ensure the normal use of the electronic scale body 1. After charging is completed, the servo motor 26 is controlled to reverse and can be retracted, ensuring the endurance of the electronic scale body 1 without taking up too much space.

[0026] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A dual-screen electronic scale, comprising an electronic scale body (1), characterized in that: The bottom of the electronic scale body (1) is fixedly connected to two mounting plates (2), a bidirectional screw rod (3) is rotatably connected between the two mounting plates (2), the external thread of the bidirectional screw rod (3) is connected to a slider (4), the external of the slider (4) is fixedly connected to a fixed plate (5), the external of the fixed plate (5) is rotatably connected to a first rotating plate (6), the external of the first rotating plate (6) is rotatably connected to a second rotating plate (7), a first rotating shaft (8) is rotatably connected between the two second rotating plates (7), the bottom of the first rotating shaft (8) is fixedly connected to a support plate (9), the top of the support plate (9) is fixedly connected to a sleeve (10), the external of the sleeve (10) is provided with a solar power generation panel (11), and the inner side of the sleeve (10) is provided with a transmission mechanism (12).

2. A dual-screen electronic scale according to claim 1, characterized in that: The transmission mechanism (12) includes a second rotating shaft (13), which is rotatably connected to the support plate (9). There are four solar panels (11), one of which is fixedly connected to the second rotating shaft (13). The outer sleeve of the second rotating shaft (13) is provided with a gear (14), and the gear (14) is fixedly connected to the second rotating shaft (13). The top of the support plate (9) is slidably connected to a rack (15), and the rack (15) is meshed with the gear (14). The interior of the second rotating plate (7) is provided with a slide groove (16), and the interior of the slide groove (16) is slidably connected to a slide rod (17), and the slide rod (17) is fixedly connected to the rack (15).

3. The dual-screen electronic scale according to claim 2, characterized in that: A first limiting groove (18) is provided inside the rack (15), a first limiting plate (19) is slidably connected inside the first limiting groove (18), the first limiting plate (19) is fixedly connected to the support plate (9), and the cross sections of the first limiting groove (18) and the first limiting plate (19) are both T-shaped structures.

4. The dual-screen electronic scale according to claim 1, characterized in that: The upper surface of the solar power generation panel (11) is provided with a groove (20), the lower surface of the solar power generation panel (11) is fixedly connected with a protrusion (21), and the interior of the solar power generation panel (11) is provided with a card slot (22), the card slot (22) is communicated with the groove (20), and the card slot (22) is used in conjunction with the protrusion (21).

5. The dual-screen electronic scale according to claim 2, characterized in that: A torsion spring (23) is sleeved outside the second rotating shaft (13) and between the solar panel (11) and the gear (14); one end of the torsion spring (23) is fixedly connected to the sleeve (10), and the other end of the torsion spring (23) is fixedly connected to the gear (14).

6. The dual-screen electronic scale according to claim 1, characterized in that: There are two sliders (4) in total, and the two sliders (4) are symmetrically distributed. A second limiting groove (24) is provided on the upper surface of the slider (4). A second limiting plate (25) is slidably connected inside the second limiting groove (24). The second limiting plate (25) is fixedly connected to the electronic scale body (1).

7. The dual-screen electronic scale according to claim 1, characterized in that: A servo motor (26) is fixedly connected to one side of the mounting plate (2), and an output shaft of the servo motor (26) vertically passes through the mounting plate (2) and extends to the other side of the mounting plate (2). The output shaft of the servo motor (26) is rotationally connected to the mounting plate (2), and the bidirectional screw rod (3) is fixedly connected to the output end of the servo motor (26).

8. The dual-screen electronic scale according to claim 1, characterized in that: The solar power generation panel (11) is a fan-shaped structure.

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