Self-generating electronic scale

Abstract

The utility model relates to a kind of self-generating electronic scales, including main body, setting is by scale surface and base combination formed cavity shell, at least the weighing sensor for measuring weight and display module are arranged in the cavity;Scale foot component, symmetrically installed in the bottom of the base, and can be inserted into base, relative base generates movement;Power generation device, for converting input kinetic energy into electric energy, for the weighing sensor and display module of electronic scale power supply;Transmission component, between scale foot component and power generation device, the displacement generated between the relative movement of scale foot component and main body is transmitted;The output end of the transmission component is mechanically connected with the input end of power generation device, and the self-generating of electronic scale is realized by the conversion of mechanical energy and electric energy.The utility model has the beneficial effect that: without relying on battery power supply, completely avoid the pollution of waste battery to environment and the risk of liquid leakage corrosion equipment, significantly improve the environmental protection and service life of product.

Description

Technical Field

[0001] This utility model relates to a weight weighing device, and more particularly to a self-generating electronic scale. Background Technology

[0002] Electronic scales are electronic products closely related to people's lives. In daily life, body scales are used to monitor health. According to incomplete statistics, the annual production, domestic sales, and export of household body scales in China alone exceed 50 million units, indicating a huge market capacity.

[0003] Electronic scales typically require batteries to power their systems, commonly including button batteries, dry cell batteries, and rechargeable batteries. Assuming an average scale consumes two batteries per year, this results in over 100 million discarded batteries. The environmental disposal of these discarded batteries is a significant issue. Improper handling, or even indiscriminate dumping into the environment without proper treatment, can cause serious harm to the environment and human health. Another drawback of using batteries is that prolonged use can lead to leakage, corrosion of the battery terminals, and a shortened product lifespan.

[0004] Currently, there are some electronic scales on the market with self-generating power, but they all use external devices and require additional operation to generate electricity. That is, the drive device needs to be operated to generate electricity before measurement can be used. This external device not only affects the aesthetics of the product, but also makes it inconvenient to use due to the extra operation, which limits the widespread application of self-generating body scales.

[0005] Solutions without additional devices include body scales that generate electricity directly upon being stepped on, but these have issues such as overly complex mechanisms that prevent implementation or excessive costs, or limitations in the underlying principles that prevent mass production due to technological or reliability problems. Currently, there are no solutions on the market that can overcome these issues. Utility Model Content

[0006] In order to solve the above-mentioned problems in the existing technology, this utility model provides a self-generating electronic scale, which solves the technical problems of the current body scale using a large number of batteries causing environmental pollution and the existing self-generating technology being too complex, unreliable, and costly, and provides a reliable and easy-to-implement technical solution.

[0007] The above-mentioned problems of this utility model are solved by the following technical solution: A self-generating electronic scale, comprising, The main body is configured as a shell with a cavity formed by combining a weighing surface and a base, wherein at least a weighing sensor for measuring weight and a display module are provided inside the cavity; The scale feet assembly is symmetrically installed at the bottom of the base and can extend into the base to move relative to the base; A power generation device is used to convert the input kinetic energy into electrical energy to power the display module of the electronic scale; A transmission component is located between the weighing foot assembly and the power generation device to transmit the displacement generated by the relative movement between the weighing foot assembly and the main body; the output end of the transmission component is mechanically connected to the input end of the power generation device, and the electronic scale generates its own power through the conversion of mechanical energy and electrical energy. The transmission assembly includes a linear transmission component and a reversing component. The linear transmission component converts the relative displacement between the weighing foot assembly and the main body along the Z-axis into its own movement along the X-axis. The reversing component converts the linear movement of the linear transmission component along the X-axis into multiple rotations that enable the power generation device to generate current.

[0008] By adopting the above technical solutions, kinetic energy to electrical energy conversion technology is used to replace battery power supply. At the same time, the integrated design of micro generator and transmission components means that the product does not need to replace the battery throughout its entire life cycle, reducing the long-term use cost for users and reducing energy waste.

[0009] A further configuration of the above technical solution is as follows: the power generation device is a micro generator that generates current by cutting magnetic field lines, and the input end of the micro generator is coupled to the commutation component (400).

[0010] By adopting the above technical solutions, traditional battery power can be replaced, eliminating the risks of pollution and leakage from used batteries; the miniaturized design can be adapted to the internal space of the electronic scale, achieving efficient energy conversion.

[0011] A further provision of the above technical solution is that the linear transmission component is provided with a pushing surface that is driven by the weighing foot assembly or the main body, and the pushing surface is an inclined surface that slopes downward toward the side of the power generation device; The scale foot assembly is provided with a driving part, which abuts against the pushing surface.

[0012] By adopting the above technical solution, the Y-axis displacement of the scale foot assembly is converted into X-axis linear motion, which meets the structural requirements of electronic scales.

[0013] A further provision of the above technical solution is that the end face of the driving part and the pushing surface in contact is set as an arc-shaped surface.

[0014] A further setting of the above technical solution is that the tilt angle of the pushing surface is 30°-60°.

[0015] By adopting the above technical solution and setting the optimal tilt angle, mechanical losses are reduced and the efficiency of kinetic energy transmission is improved.

[0016] A further provision of the above technical solution is that a stop structure is provided between the linear transmission component and the weighing foot assembly, the stop structure including a stop groove provided on the linear transmission component, and a stop part provided on the weighing foot assembly that can enter the stop groove; The stop groove has a constricted structure along the direction of entry of the stop part.

[0017] By adopting the above technical solutions, the drive unit is prevented from sliding out of the push surface, ensuring transmission stability; the narrowing design reduces the contact area and lowers the friction during reset; the guide surface auxiliary components are accurately reset, ensuring efficient transmission in the next use.

[0018] A further provision of the above technical solution is that a buffer plate is provided inside the base, the buffer plate is located above the scale foot assembly, and is elastically connected to the scale foot assembly through an elastic element.

[0019] By adopting the above technical solution, a buffer plate is set to transmit pressure to the cover plate, absorb impact force, and avoid overload damage to the weighing sensor; the elastic element ensures uniform pressure transmission and improves the accuracy of weighing data; the pressure plate part enhances the contact pressure between the pushing surface and the driving part, and accelerates the power generation response.

[0020] A further provision of the above technical solution is that the reversing component includes at least an input gear and an output gear, the linear transmission component is provided with a rack portion that meshes with the input gear, and the shaft of the output gear is connected to the rotor shaft of the micro motor to drive it to rotate.

[0021] A further configuration of the above technical solution is as follows: the reversing component further includes a first speed-changing gear and a second speed-changing gear; the input gear, the first speed-changing gear, the second speed-changing gear and the output gear mesh in sequence to transmit the linear motion of the linear transmission component at different speeds.

[0022] By adopting the above technical solution, linear motion is converted into high-speed rotation through the meshing of input gear, speed-changing gear and output gear. The commutation component is set to amplify the speed of the output gear, so as to realize the high-frequency cutting of magnetic field lines by the generator rotor and improve the power generation efficiency; ensure instantaneous power supply and realize real-time display of weighing data.

[0023] A further setting of the above technical solution is: the transmission ratio of the input gear and the output gear is 1:46.

[0024] A further configuration of the above technical solution is as follows: the weighing foot assembly includes a foot extending below the base and a cover plate installed on the upper end of the foot, the weighing sensor is located at the bottom of the cover plate, and the cover plate has a first hook extending downward to hook the weighing sensor upward. The base extends upward and is provided with a second hook, which the weighing sensor is hooked downward; The drive unit is located on the side of the cover plate.

[0025] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. It does not rely on battery power, completely avoiding the environmental pollution caused by waste batteries and the risk of leakage and corrosion of equipment, significantly improving the environmental friendliness and service life of the product; 2. The external power generation device and additional operating steps have been eliminated. The power generation is automatically triggered when the user stands up, which simplifies the usage process while maintaining the integrity of the product's appearance. 3. Through the optimized coordination of the linear transmission components and the reversing assembly, efficient mechanical energy to electrical energy conversion is achieved, ensuring instantaneous power supply to the weighing sensor and display module; The integrated transmission structure and buffer design improve the stability and reliability of the equipment operation, and solve the problems of complex structure, high cost or inability to mass-produce in traditional self-generating solutions, providing a feasible path for the promotion and application of self-generating electronic scales. Attached Figure Description

[0026] Figure 1 This is an exploded structural diagram of the present invention.

[0027] Figure 2 A schematic diagram of the structural position of the cover plate for linear drive.

[0028] Figure 3 This is a cross-sectional structural diagram of the present invention in its initial state.

[0029] Figure 4 This is a cross-sectional structural diagram of the present invention under weighing conditions.

[0030] Figure 5 This is a schematic diagram of the cover plate.

[0031] Figure 6 This is a top view of the transmission assembly.

[0032] Figure 7 This is a schematic diagram of the separate structure of the buffer plate and the base.

[0033] Figure 8 This is a side view of the transmission connection structure of the transmission assembly.

[0034] Figure 9 This is a schematic diagram of the transmission connection structure of the transmission component.

[0035] Figure 10 This is a schematic diagram of the connection structure of the transmission component from another perspective.

[0036] Figure 11 This is an exploded structural diagram of the scale foot assembly.

[0037] Figure 12 This is an isometric sectional view of the scale foot assembly.

[0038] Figure 13 This is a cross-sectional structural diagram of the scale foot assembly.

[0039] Figure 14 This is a schematic diagram of the overall structure of this utility model.

[0040] The attached diagram is labeled as follows: 100, base; 101, foot hole; 110, enclosure; 111, receiving groove; 120, fixing post; 112, limit hook; 130, guide rib. 200. Scale foot assembly; 210. Cover plate; 211. Drive unit; 212. Stop unit; 213. Limiting groove; 220. Base foot; 214. First hook; 221. Second hook; 222. Top support wall; 223. Support rib; 224. Limiting wall; 215. Abutment rib; 216. Cable routing hole; 300, Linear transmission component; 310, Pushing surface; 301, Stop groove; 301.1, Guide surface; 320, Return wing; 321, First tension spring hole; 330, Rack section; 302, Guide groove; 400, reversing assembly; 410, input gear; 420, output gear; 411, first tooth; 412, second tooth; 500, Buffer plate; 501, Pressure groove; 510, Pressure plate section; 430, First speed-changing gear; 440, Second speed-changing gear; 431, First input gear section; 432, Second input gear section; 441, First input gear section; 442, Second speed-changing gear section; 450, Rotating shaft plate; 600. Load cell; 601. Suspension groove; 700, scale surface; 1. Display module; 2. Power generation device; 3. Tension spring; 4. Elastic component. Detailed Implementation

[0041] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0042] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0043] like Figure 1-14As shown, this embodiment discloses a self-generating electronic scale.

[0044] A self-generating electronic scale, comprising, The main body is configured as a housing with a cavity formed by combining a weighing surface 700 and a base 100, wherein at least a weighing sensor 600 for measuring weight and a display module 1 are provided in the cavity; The scale foot assembly 200 is symmetrically installed on the bottom of the base 100 and can extend into the base 100 and move relative to the base 100; The power generation device 2 is used to convert the input kinetic energy into electrical energy to power the display module 1 of the electronic scale; A transmission component is located between the weighing foot assembly 200 and the power generation device 2 to transmit the displacement generated by the relative movement between the weighing foot assembly 200 and the main body; the output end of the transmission component is mechanically connected to the input end of the power generation device 2, and the electronic scale generates its own power through the conversion of mechanical energy and electrical energy. The transmission assembly includes a linear transmission component 300 and a reversing component 400. The linear transmission component 300 converts the relative displacement between the weighing foot assembly 200 and the main body along the Z-axis into its own movement along the X-axis. The reversing component 400 converts the linear movement of the linear transmission component 300 along the X-axis into multiple rotations around the Z-axis that enable the power generation device 2 to generate current.

[0045] The above is the basic scheme of this embodiment.

[0046] Reference Figure 1 and Figure 14 As shown, the main body is formed by assembling the weighing surface 700 and the base 100, that is, the weighing surface 700 and the base 100 move synchronously. In this embodiment, only the base 100 is used as an example of the main body.

[0047] The base 100 is provided with four symmetrically arranged foot holes 101. The scale foot assembly 200 is disposed in the foot holes 101, and its lower end protrudes below the base 100, so that a gap is formed between the bottom of the base 100 and the ground. When a person stands on the weighing surface 700, the main body sinks due to the pressure of the person, and the base 100 sinks, reducing the size of the gap. However, in order to avoid the base 100 from contacting the ground and affecting the weighing data, a buffer mechanism is usually provided inside the base 100. This buffer mechanism ensures that there is always a gap between the lower end of the base 100 and the ground.

[0048] The power generation device 2 is located inside the main body, that is, fixed on the base 100. When the main body is subjected to the weight of the human body and sinks, a relative displacement is generated between it and the weighing foot assembly 200. This relative displacement can be transmitted to the power generation device 2, where kinetic energy is converted into electrical energy to power the weighing sensor 600 and the display module 1.

[0049] In this embodiment, a transmission component is provided between the weighing foot assembly 200 and the power generation device 2. The linear displacement generated by the weighing foot assembly 200 relative to the main body is input to the transmission component. The transmission component converts the output linear displacement into rotation and transmits it to the input end of the power generation device 2. The input end of the power generation device 2 rotates and cuts the magnetic field lines in the device, causing current to be generated in the coil, converting mechanical energy into electrical energy, so as to realize the self-generation of the electronic scale.

[0050] The displacement of the weighing foot assembly 200 relative to the main body is in the vertical direction, i.e., the Z-axis direction. This linear displacement in the Z-axis direction is converted into linear movement in the X-axis after passing through the linear transmission component 300, and then converted into rotation around the Z-axis after passing through the reversing component 400. This rotational motion is input to the power generation device 2 to generate electricity.

[0051] A generator is a mechanical device that converts other forms of energy into electrical energy. Driven by a water turbine, steam turbine, diesel engine, or other power machinery, it converts the energy generated by water flow, airflow, fuel combustion, or nuclear fission into mechanical energy, which is then transferred to the generator and converted into electrical energy. Generators have wide applications in industrial and agricultural production, national defense, science and technology, and daily life.

[0052] There are many types of generators, but their working principles are all based on the laws of electromagnetic induction and electromagnetic force. Therefore, the general principle of their construction is to use appropriate magnetic and electrical materials to form magnetic circuits and electrical circuits that mutually induce electromagnetic forces, so as to generate electromagnetic power and achieve the purpose of energy conversion.

[0053] A generator typically consists of components such as a stator, rotor, end covers, and bearings. The stator comprises the stator core, winding coils, frame, and other structural parts that secure these components. The rotor comprises the rotor core (or magnetic poles, yoke), windings, retaining rings, center ring, slip rings, fan, and shaft.

[0054] The stator and rotor of the generator are connected and assembled by bearings and end covers, so that the rotor can rotate in the stator and cut magnetic lines of force, thereby generating an induced electromotive force. This induced electromotive force is led out through the terminals and connected to the circuit to generate current.

[0055] In this embodiment, the input end of the power generation device 2 is a rotor, and the shaft of the rotor is connected to the commutation assembly 400, so that it can be driven by the commutation assembly 400 to rotate.

[0056] In this embodiment, a micro-generator is used, and the input terminal of the micro-generator is coupled to the commutation assembly (400). It generates current by cutting magnetic field lines to achieve the conversion of mechanical energy into electrical energy.

[0057] Based on the above settings, this embodiment uses kinetic energy to electrical energy conversion technology to replace battery power supply. At the same time, the integrated design of the micro generator and transmission components means that the battery does not need to be replaced throughout the product's entire life cycle, reducing long-term user costs and minimizing energy waste.

[0058] Specifically, the linear transmission component 300 is provided with a pushing surface 310 that can be driven by the weighing foot assembly 200 or the main body, and the pushing surface 310 is an inclined surface that slopes downward toward the power generation device 2. A driving part 211 is provided on the scale foot assembly 200, and the driving part 211 abuts against the pushing surface 310.

[0059] Specific reference Figure 2 As shown, the linear transmission component 300 is configured as a rod, with one end facing the weighing foot assembly 200 as the input end. The pushing surface 310 is located on the lower end face of the driving end of the rod, and its inclination direction is downward towards the output end. That is, during the process of the main body sinking, the main body or the weighing foot assembly 200 drives the pushing surface 310. In this embodiment, the linear transmission component 300 is guided and set on the base 100, that is, it can only move in the X-axis direction relative to the base 100. When the main body moves downward along the Y-axis, the linear transmission component 300 moves downward along the Z-axis simultaneously. At this time, the weighing foot assembly 200 is in a fixed state. Therefore, the weighing foot assembly 200 pushes the pushing surface 310, driving the linear transmission component 300 to move along the X-axis.

[0060] In this embodiment, the linear transmission component 300 is provided with a guide groove 302, and the base 100 has a guide rib 130 that cooperates with the guide groove 302. The cooperation between the guide groove 302 and the guide rib 130 constrains the movement range of the linear transmission component 300 on the X-axis.

[0061] When the main body is not submerged, the drive part 211 of the weighing foot assembly 200 contacts the lower end of the pushing surface 310. At this time, the linear transmission member 300 is in a higher position relative to the weighing foot assembly 200. Figure 3 As shown; when the linear drive assembly moves downward with the base 100, the pushing surface 310 moves downward with the linear rotation assembly. At this time, the drive unit 211 applies a vertical upward thrust to the pushing surface 310. The component of this thrust along the X-axis drives the linear drive member 300 to move towards the generator 2, thereby causing the linear drive member 300 to move along the X-axis. Finally, the drive unit 211 and the end of the pushing surface 310 come into contact. At this time, the linear drive member 300 sinks to a lower position with the base 100. Simultaneously, the linear drive member 300 moves relative to the base 100 along the X-axis. (Refer to...) Figure 4 As shown.

[0062] Preferably, in order to enable the driving part 211 to slide smoothly on the pushing surface 310, in this embodiment, the end face of the driving part 211 and the pushing surface 310 that contacts each other is set as an arc-shaped surface.

[0063] Furthermore, to ensure stability when relative sliding occurs between the drive unit 211 and the pushing surface 310, the centerline of the arc-shaped surface in this embodiment is in the Z-axis direction, as specifically referred to... Figure 5 As shown, perpendicular to the direction of relative sliding, a line contact can be formed between the driving part 211 and the pushing surface 310, so that the driving part 211 and the pushing surface 310 have stability in the Y-axis direction.

[0064] Preferably, to ensure optimal transmission efficiency, the inclination angle of the pushing surface 310 is 30°-60°.

[0065] If the tilt angle of the pushing surface 310 is too large or too small, it will result in uneven force distribution of the thrust, which will cause resistance to the linear transmission component 300 during its movement along the X-axis and reduce transmission efficiency.

[0066] Preferably, in this embodiment, the tilt angle of the pushing surface 310 is set to 35°. This angle is the optimal solution obtained after multiple tests in this embodiment, which can minimize mechanical losses during the transmission process.

[0067] In this embodiment, to prevent the drive part 211 from sliding out of the push surface 310 and entering the bottom of the linear transmission member 300 when it is reset, a stop structure is provided between the linear transmission member 300 and the weighing foot assembly 200. The stop structure includes a stop groove 301 provided on the linear transmission member 300, and a stop part 212 that can enter the stop groove 301 is provided on the weighing foot assembly 200. The stop groove 301 has a constricted structure along the direction of entry of the stop part 212.

[0068] Specific reference Figure 6 As shown, in the initial state, the drive part 211 contacts the lowest position of the push surface 310. At this time, the stop part 212 enters the stop groove 301 and is stopped by the stop groove 301, and abuts against the inner wall of the stop groove 301. The stop part 212 cannot move relative to the stop groove 301, that is, the linear transmission member 300 is stationary relative to the weighing foot assembly 200. As the drive unit 211 climbs along the push surface 310, the stop unit 212 gradually exits the stop groove 301.

[0069] In this embodiment, the stop groove 301 is configured as a narrowed structure, and the narrowing direction is set along the entry direction of the stop part 212. The purpose is that when the stop part 212 exits from the stop groove 301, at the instant when the linear transmission member 300 and the weighing foot assembly 200 move relative to each other on the X-axis, the stop part 212 can be separated from the groove wall of the stop groove 301, thereby reducing the contact area between the weighing foot assembly 200 and the linear transmission member 300. At this time, only the driving part 211 and the pushing surface 310 make line contact, and no contact occurs at other positions, thereby reducing the friction generated during relative movement and improving transmission efficiency.

[0070] Preferably, in this embodiment, the contact surface between the stop portion 212 and the stop groove 301 is set as an arc surface.

[0071] Meanwhile, in order to ensure the instantaneous separation between the stop part 212 and the stop groove 301, in this embodiment, the groove wall of the stop groove 301 in the Y-axis direction is set as an inclined surface. Another function of this inclined surface is that when the linear transmission member 300 performs displacement conversion, it is necessary to ensure that its position is consistent with that of the weighing foot assembly 200. That is, the pushing surface 310 on the linear transmission member 300 needs to always be in contact with the driving part 211 on the weighing foot assembly 200, so as to ensure the transmission effect. Therefore, in the initial state, it is necessary to ensure that the positions of the linear transmission member 300 and the weighing foot assembly 200 are consistent. In this embodiment, the groove wall is set as an inclined guide surface 301.1, and the two guide surfaces 301.1 are symmetrical. When the linear transmission component 300 is reset, the stop part 212 enters the stop groove 301. Due to the action of the guide surface 301.1, the stop part 212 is driven toward the center of the stop groove 301, so that the stop part 212 can finally enter the middle part of the stop groove 301, so as to ensure that the linear transmission component 300 can transmit efficiently when the electronic scale is used again.

[0072] In addition, in this embodiment, the stop groove 301 is set as a narrowing structure, which can enhance the stopping strength of the stop groove 301 and provide better support when the stop part 212 of the linear transmission component 300 suddenly enters the stop groove 301 during reset.

[0073] In this embodiment, in order to ensure the stability of the linear transmission component 300 during movement, two pushing surfaces 310 are provided and are symmetrically located on both sides of the stop groove 301. Similarly, two driving parts 211 on the scale foot assembly 200 are also provided and are symmetrically located on both sides of the stop part 212.

[0074] In this embodiment, a reset device is provided on the linear transmission component 300, which is used to pull the linear transmission component 300 back to its initial state after weighing is completed, so as to facilitate the next use.

[0075] The reset device is configured as a tension spring 3. A reset wing 320 is provided on the side of the linear transmission component 300. The reset wing 320 is provided with a first tension spring 3 hole 321. At the same time, a reset wall is vertically provided on the base 100. The reset wall is provided with a second tension spring 3 hole corresponding to the first tension spring 3 hole 321. The two ends of the tension spring 3 are respectively located in the first tension spring 3 hole 321 and the second tension spring 3 hole.

[0076] In addition, in this embodiment, a buffer plate 500 is provided inside the base 100. The buffer plate 500 is located above the weighing foot assembly 200 and is elastically connected to the weighing foot assembly 200 through an elastic member 4.

[0077] Specific reference Figure 7 As shown, the buffer plate 500 is located above the weighing foot assembly 200 and is fixed to the main body, moving synchronously with the main body. Therefore, when the main body is subjected to the weight of a person and sinks, it drives the buffer plate 500 to move downward synchronously, squeezing the elastic element 4 at the bottom of the buffer plate 500. The elastic element 4 transmits the squeezing force to the weighing foot assembly 200, so that the weighing foot assembly 200 senses the pressure and transmits the pressure to the weighing sensor 600 inside the weighing foot assembly 200. The weighing sensor 600 can display the pressure data.

[0078] Preferably, in this embodiment, the elastic element 4 is a spring.

[0079] The upper surface of the scale foot assembly 200 is provided with a limiting groove 213 that can accommodate the lower end of the spring, and the upper end of the spring elastically supports the lower end of the buffer plate 500.

[0080] Preferably, in this embodiment, two elastic elements 4 are symmetrically arranged.

[0081] In this embodiment, a surrounding wall 110 is provided inside the base 100 around the foot hole 101. The surrounding wall 110 forms a receiving groove 111 inside the base 100 that can accommodate the buffer plate 500 and the upper part of the weighing foot assembly 200. The side of the surrounding wall 110 is provided with a notch to accommodate the extension of the driving part 211 and the stop part 212 on the weighing foot assembly 200, and at the same time, it can accommodate the input end of the linear transmission member 300 extending in.

[0082] A fixing post 120 is provided inside the base 100 on the side of the enclosure 110, and the buffer plate 500 is fixed to the fixing post 120 with screws.

[0083] Meanwhile, a limiting hook 112 is provided on the upper edge of the enclosure 110 facing the receiving groove 111, and a pressing groove 501 is provided on the upper end edge of the buffer plate 500 corresponding to the position of the limiting hook 112. The buffer plate 500 is embedded into the receiving groove 111, and the limiting hook presses the pressing groove 501. At the same time, the buffer plate 500 is fixed to the fixing post 120 with screws, completing the fixed connection between the buffer plate 500 and the main body.

[0084] In this embodiment, a pressure plate portion 510 extends from the buffer plate 500 toward the linear transmission member 300, and the lower end face of the pressure plate portion 510 is located above the input end of the linear transmission member 300. (See attached diagram.) Figure 3 and Figure 4 It can be seen that when the main body sinks under the pressure of the human body, and the buffer plate 500 sinks synchronously, the pressure plate part 510 squeezes the input end of the linear transmission member 300, thereby generating a great interaction force between the pushing surface 310 and the driving part 211. At the same time, the linear transmission member 300 moves faster along the X-axis, which enables the power generation device 2 to generate current by cutting the magnetic field more instantaneously.

[0085] With this setup, when a person stands on the weighing surface 700, the display module 1 and the weighing sensor 600 are quickly powered on, and the display module 1 can instantly display the weight of the person.

[0086] Based on the above configuration, the buffer plate 500 transmits pressure to the weighing foot assembly 200, absorbs impact force, and prevents the weighing sensor 600 from being overloaded and damaged; the elastic element 4 ensures uniform pressure transmission and improves the accuracy of weighing data; the pressure plate 510 enhances the contact pressure between the pushing surface 310 and the driving part 211, and accelerates the power generation response.

[0087] To ensure the stability of the linear transmission component 300 during reset, in this embodiment, two reset devices are symmetrically arranged and located outside the pushing surface 310.

[0088] In this embodiment, the specific implementation of the commutation component 400 is as follows: the commutation component 400 includes at least an input gear 410 and an output gear 420, the linear transmission member 300 is provided with a rack portion 330 that meshes with the input gear 410, and the shaft of the output gear 420 is connected to the rotor shaft of the power generation device 2 to drive it to rotate.

[0089] Specific reference Figures 8-10As shown, the linear transmission component 300 is provided with a rack portion 330, which meshes with the teeth of the output gear 420. When the linear transmission component 300 is displaced along the X-axis under the action of the weighing foot assembly 200, it drives the rack portion 330 to move. The rotating shaft of the output gear 420 is fixed on the base 100. When the rack moves, it drives the output gear 420 to rotate around the rotating shaft, thereby converting linear movement into rotation.

[0090] Specifically, the input gear 410 is configured as a double gear, including a first tooth 411 and a second tooth 412 arranged coaxially. The first tooth 411 meshes with the rack of the linear transmission member 300 and is driven by the linear transmission member 300. The second tooth 412 outputs motion to the output gear 420.

[0091] Preferably, in this embodiment, the transmission ratio of the input gear 410 and the output gear 420 is 1:46.

[0092] In other words, for every one revolution of the input gear 410, the output gear 420 rotates 46 times, thereby improving transmission efficiency.

[0093] Based on the above settings, the linear transmission component 300 only needs to move a small displacement to drive the output gear 420 to rotate at high speed through the input gear 410, thereby driving the rotor of the power generation device 2 to rotate rapidly and cut the magnetic field lines quickly and multiple times, thus generating electrical energy.

[0094] Preferably, in this embodiment, in order to adjust the displacement of the linear transmission component 300 so that the same displacement distance can be converted into more or less electrical energy of the power generation device 2, in this embodiment, a first speed-changing gear 430 and a second speed-changing gear 440 are provided between the input gear 410 and the second gear. The input gear 410, the first speed-changing gear 430 and the second speed-changing gear 440 mesh in sequence to form a speed-changing transmission.

[0095] Specifically, in this embodiment, the first gear 430 and the second gear 440 are preferably double gears. The first gear 430 is coaxially provided with a first input tooth 441431 and a first gear shifting tooth, and the second gear 440 is coaxially provided with a second input tooth 432 and a second gear shifting tooth 442. The second tooth 412 of the input gear 410 meshes with the first input tooth 441431 of the first gear 430, the first gear shifting tooth of the first gear 430 meshes with the second input tooth 432 of the second gear 440, and the second gear shifting tooth 442 of the second gear 440 meshes with the output gear 420. By changing the ratio of the number of teeth between each gear, the transmission ratio is adjusted to achieve optimal transmission efficiency.

[0096] After multiple tests, in this embodiment, the transmission ratio between the input gear 410 and the first gear 430 is 1:4.8, the transmission ratio between the first gear 430 and the second gear 440 is 1:3, and the transmission ratio between the second gear 440 and the output gear 420 is 1:3.2, thereby achieving a transmission ratio of 1:46 between the input gear 410 and the output gear 420.

[0097] By setting up a first speed-changing gear 430 and a second speed-changing gear 440, and adjusting the transmission ratio between the two speed-changing gears and the input gear 410 and output gear 420, the desired final speed can be obtained, thereby achieving optimal transmission efficiency.

[0098] In this embodiment, a rotating shaft plate 450 is fixed inside the base 100. The rotating shaft plate 450 is located above the reversing assembly 400. The rotating shafts of the input gear 410, the first speed-changing gear 430, the second speed-changing gear 440, and the output gear 420 are limited on the rotating shaft plate 450 to ensure the transmission stability of the reversing assembly 400.

[0099] Based on the above settings, this embodiment converts linear motion into high-speed rotation through the meshing of the input gear 410, the first speed-changing gear 430, the second speed-changing gear 440, and the output gear 420. The reversing component amplifies the rotational speed of the output gear 420, enabling the rotor of the power generation device 2 to cut magnetic field lines at high frequency, thereby improving power generation efficiency; ensuring instantaneous power supply, and enabling real-time display of weighing data.

[0100] In this embodiment, the weighing foot assembly 200 includes a base foot 220 extending below the base 100 and a cover plate 210 installed on the upper end of the base foot 220. The weighing sensor 600 is located at the bottom of the cover plate 210, and the cover plate 210 has a first hook 214 extending downward to hook the weighing sensor 600 upward. The base 220 extends upward and is provided with a second hook 221 for hooking the weight sensor 600 downward; The drive unit 211 is located on the side of the cover plate 210.

[0101] Specific reference Figures 11-13 As shown, the weighing foot assembly 200 is arranged from top to bottom as a cover plate 210, a weighing sensor 600, and a base 220 of the housing structure. The cover plate 210 is located inside the main body, that is, above the foot hole 101 of the base 100. The drive part 211 and the stop part 212 protrude from the side of the cover plate 210 facing the linear transmission member 300.

[0102] The cover plate 210 has a first hook 214 extending downward on both sides. The upper surface of the hook of the first hook 214 is horizontal and forms a hook gap with the lower surface of the cover plate 210. The weighing sensor 600 is located in the hook gap.

[0103] The base 220 is configured as a shell structure, and a second hook 221 extending upward to the top of the shell is provided on the inner wall of the shell via a connecting ring. The hanging surface of the second hook 221 faces downward. The load cell 600 is provided with a suspension groove 601 that can accommodate the passage of the second hook 221. The second hook 221 extends above the load cell 600 through the suspension groove 601, so that the hanging surface of the second hook 221 is close to the upper end surface of the load cell 600, thereby suspending the base 220 on the load cell 600.

[0104] The fact that the second hook 221 is suspended on the load cell 600 alone cannot guarantee a stable connection between the foot 220 and the cover plate 210 or the load cell 600. Therefore, in this embodiment, a support wall 222 is also provided inside the foot 220. The support wall 222 is arranged inside the second hook 221 and extends upward from the inner bottom surface of the foot 220 to support the lower end surface of the load cell 600.

[0105] Preferably, in this embodiment, the distance between the upper end face of the top support wall 222 and the hanging surface of the second hook 221 is the same as the thickness of the weighing sensor 600, so that the weighing sensor 600 can be fixed on the base 220.

[0106] Furthermore, in order to ensure the stability of the top support wall 222 in this embodiment, the bottom foot 220 is provided with a cross-shaped support rib 223 inside. The lower end of the support rib 223 is formed on the inner bottom surface of the bottom foot 220, and the side is connected to the end face of the two top support walls 222. This provides lateral support and stability to the two top support walls 222, ensuring the distance between the two top support walls 222 and preventing the two top support walls 222 from bending and deforming under pressure, thus causing the weighing to fail.

[0107] In this embodiment, in order to limit the position of the weighing sensor 600, a limiting wall 224 is provided on the side of the weighing sensor 600 on the foot 220. The limiting wall 224 is located on the side of the weighing sensor 600 on the Z-axis, which restricts the movement of the weighing sensor 600 on the Y-axis.

[0108] Based on the above configuration, the weighing sensor 600 is completely confined to the upper surface of the foot 220 by the second hook 221, the top holding wall 222 and the limiting wall 224, so that the weighing sensor 600 and the foot 220 form an integral structure.

[0109] In this embodiment, since the second hook 221 extends above the weighing sensor 600, in order to ensure the consistency of the structure on the cover plate 210, a gap is left between the lower end face of the cover plate 210 and the weighing sensor 600 so that the hook can be accommodated in the gap without affecting other components on the upper end face of the cover plate 210.

[0110] When there is a gap between the load cell 600 and the lower end face of the cover plate 210, it is necessary to fix the load cell 600 and the cover plate 210. In this embodiment, an abutment rib 215 is provided extending from the lower end face of the cover plate 210. The abutment rib 215 can contact the load cell 600 while avoiding the position of the second hook 221, thereby achieving the fixation between the load cell 600 and the cover plate 210 without affecting the suspension of the second hook 221 on the load cell 600.

[0111] Since the load cell 600 needs to be connected to a wire for power during use, a wiring hole 216 is provided on the cover plate 210 in this embodiment.

[0112] In this embodiment, a buffer pad is provided at the bottom of the foot 220. The buffer pad is in contact with the ground and provides cushioning for the entire electronic scale.

[0113] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A self-generating electronic scale, characterized by: include, The main body is configured as a housing with a cavity formed by combining a weighing surface (700) and a base (100), wherein at least a weighing sensor (600) for measuring weight and a display module (1) are provided in the cavity; The scale foot assembly (200) is symmetrically installed on the bottom of the base (100) and can extend into the base (100) and move relative to the base (100); The power generation device (2) is used to convert the input kinetic energy into electrical energy to power the display module (1) of the electronic scale; The transmission component is located between the weighing foot assembly (200) and the power generation device (2) to transmit the displacement generated by the relative movement between the weighing foot assembly (200) and the main body; the output end of the transmission component is mechanically connected to the input end of the power generation device (2) to realize the self-generation of the electronic scale through the conversion of mechanical energy and electrical energy. The transmission assembly includes a linear transmission component (300) and a reversing component (400). The linear transmission component (300) converts the relative displacement between the weighing foot assembly (200) and the main body along the Z-axis into its own movement along the X-axis. The reversing component (400) converts the linear movement of the linear transmission component (300) along the X-axis into multiple rotational actions that enable the power generation device (2) to generate current.

2. The self-generating electronic scale of claim 1, wherein: The power generation device (2) is a micro generator that generates current by cutting magnetic field lines, and the input end of the micro generator is coupled to the commutation component (400).

3. The self-generating electronic scale of claim 1, wherein: The linear transmission component (300) is provided with a pushing surface (310) that is driven by the weighing foot assembly (200) or the main body, and the pushing surface (310) is a downward inclined surface facing the power generation device (2); The scale foot assembly (200) is provided with a driving part (211), which abuts against the pushing surface (310).

4. The self-generating electronic scale of claim 3, wherein: The inclination angle of the pushing surface (310) is 30°-60°.

5. The self-generating electronic scale of claim 1, wherein: A stop structure is also provided between the linear transmission component (300) and the weighing foot assembly (200). The stop structure includes a stop groove (301) provided on the linear transmission component (300), and a stop part (212) provided on the weighing foot assembly (200) that can enter the stop groove (301). The stop groove (301) has a constricted structure along the direction of entry of the stop part (212).

6. The self-generating electronic scale of any of claims 1-5, wherein: The base (100) is also provided with a buffer plate (500), which is located above the weighing foot assembly (200) and is elastically connected to the weighing foot assembly (200) through an elastic element (4).

7. The self-generating electronic scale of claim 1, wherein: The reversing assembly (400) includes at least an input gear (410) and an output gear (420). The linear transmission member (300) is provided with a rack portion (330) that meshes with the input gear (410). The shaft of the output gear (420) is connected to the rotor shaft of the power generation device (2) to drive it to rotate.

8. The self-generating electronic scale of claim 7, wherein: The reversing assembly (400) further includes a first speed-changing gear (430) and a second speed-changing gear (440); the input gear (410), the first speed-changing gear (430), the second speed-changing gear (440) and the output gear (420) mesh in sequence to change the speed of linear motion of the linear transmission component (300).

9. The self-generating electronic scale of claim 7 or 8, wherein: The transmission ratio between the input gear (410) and the output gear (420) is 1:

46.

10. The self-generating electronic scale according to claim 3, characterized in that: The weighing foot assembly (200) includes a foot (220) extending below the base (100) and a cover plate (210) mounted on the upper end of the foot (220). The weighing sensor (600) is located at the bottom of the cover plate (210). The cover plate (210) has a first hook (214) extending downward to hook the weighing sensor (600) upward. The base (220) extends upward and is provided with a second hook (221) to hook the weight sensor (600) downward; The drive unit (211) is located on the side of the cover plate (210).

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