A concealed power generation electronic scale

Abstract

The utility model relates to a kind of hidden power generation's electronic scale, including the scale body being composed of face shell and base, the first support foot assembly of being able to axially move is equipped on the scale body, generator is also equipped on the scale body, the transmission member is connected to the first support foot assembly, the transmission structure that the latter is rotated around the axis of first support foot assembly when the former axially moves is equipped between the first support foot assembly and transmission member, the transmission member and generator transmission connection in turn promote generator power generation.The setting of transmission structure, when the first support foot assembly axially moves, transmission member can be stably pushed to rotate around its own axis, and rotate power is transmitted to generator by the transmission member, so as to avoid the problem that rack or sector gear directly bears treading impact force in traditional scheme, improve the structural strength and motion stability of transmission system.

Description

Technical Field

[0001] This utility model relates to the field of electronic scale technology, specifically to an electronic scale with concealed power generation. Background Technology

[0002] Currently, self-generating electronic scales on the market typically have a mechanical push button protruding from the scale surface on the scale panel. Users need to press the button to generate electricity, which then powers the scale.

[0003] However, to accommodate the push-button, a through-hole is usually required in the scale panel, increasing costs and compromising the overall appearance. Furthermore, the gap between the panel opening and the button easily accumulates dust, hair, and other foreign objects, potentially causing the button to jam after prolonged use. Additionally, users need to press the button to generate electricity before weighing, which contradicts the natural user habit of immediate measurement, resulting in a poor user experience. Some products on the market attempt to integrate the generator into the scale foot, for example, by placing a sector gear or rack on the side wall of the movable support foot to drive the generator. However, this approach suffers from structural layout limitations. Due to the large instantaneous impact of the stepping force and the limitation on increasing the gear module due to the length of the support foot, stress concentration easily occurs at the root of the sector gear or rack, leading to broken or chipped teeth, transmission failure, and poor motion stability. Utility Model Content

[0004] The purpose of this invention is to provide a concealed electronic scale for power generation with optimized structural layout, thereby solving the above-mentioned problems.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a hidden power generation electronic scale, including a scale body composed of a face shell and a base, the scale body is provided with a first support leg assembly that can move axially, the scale body is also provided with a generator, the first support leg assembly is connected to a transmission component, and a transmission structure is provided between the first support leg assembly and the transmission component to push the latter to rotate around the axis of the first support leg assembly when the former moves axially, the transmission component is connected to the generator to drive the generator to generate electricity.

[0006] As a further optimization of this utility model, the transmission structure includes a protrusion on one of the first support leg assembly and the transmission member, and a guide groove on the other and cooperating with the protrusion. When the first support leg assembly moves axially, the protrusion presses against the side wall of the guide groove to drive the transmission member to rotate around the axis of the first support leg assembly.

[0007] As a further optimization of this utility model, the transmission component is a transmission ring sleeved on the first support foot assembly, the protrusions are multiple and spaced apart on the outer peripheral sidewall of the first support foot assembly, and the number of guide grooves corresponds to the protrusions and is spaced apart on the inner peripheral sidewall of the transmission component.

[0008] As a further optimization of this utility model, a gear set consisting of multi-stage gears is provided between the transmission component and the generator, and transmission teeth that mesh with the gear set are provided on the outer peripheral sidewall of the transmission component.

[0009] As a further optimization of this utility model, adjacent gears in the gear set mesh with each other in the horizontal plane, thereby arranging the gears of each stage of the gear set in a horizontal direction.

[0010] As a further optimization of this utility model, the base is provided with a mounting bracket, the transmission component is rotatably mounted in the mounting bracket, a limiting groove is provided on the outer peripheral side wall of the transmission component, and a limiting block is provided around the outer periphery of the transmission component, which can extend into the limiting groove and limit the axial and radial displacement of the transmission component.

[0011] As a further optimization of this utility model, the mounting bracket is provided with a guide post arranged in the vertical direction, the first support foot assembly is provided with a guide hole that cooperates with the guide post, and an elastic element that presses down on the first support foot assembly is sleeved on the outside of the guide post.

[0012] As a further optimization of this utility model, the first support foot assembly includes a mounting base and a scale foot movably disposed on the mounting base. A weighing sensor is provided between the mounting base and the scale foot, and a spherical protrusion is provided at the lower part of the weighing sensor.

[0013] As a further optimization of this utility model, a second support foot assembly is also fixedly connected to the base. There are two first support foot assemblies and two second support foot assemblies. The two first support foot assemblies are located on the same side of the base, and the two second support foot assemblies are located on the side of the base away from the first support foot assemblies.

[0014] As a further optimization of this utility model, both the first support foot assembly and the second support foot assembly extend out of the base. When the scale body is in the initial state, the extension length of the first support foot assembly is greater than the extension length of the second support foot assembly.

[0015] Compared with the prior art, the present invention has the following advantages: by setting the transmission structure, the first support foot assembly can smoothly push the transmission component to rotate around its own axis when moving axially, and transmit the rotational power to the generator through the transmission component, thereby avoiding the problem of rack or sector gear directly bearing the impact force of stepping in the traditional solution, and improving the structural strength and motion stability of the transmission system. Attached Figure Description

[0016] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0018] Figure 2 This is an exploded view of the present invention;

[0019] Figure 3 This is an exploded view of the first support leg assembly, transmission component, gear set, and generator in this utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of the first support leg assembly, transmission component, and mounting bracket in this utility model.

[0021] Figure 5 This is a cross-sectional view of the present invention. Detailed Implementation

[0022] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] An electronic scale with concealed power generation includes a scale body 1 composed of a face shell 11 and a base 12. The scale body 1 is provided with a first support leg assembly 2 that can move axially. The scale body 1 is also provided with a generator 3. The first support leg assembly 2 is connected to a transmission component 5. A transmission structure 8 is provided between the first support leg assembly 2 and the transmission component 5 to push the latter to rotate around the axis of the first support leg assembly 2 when the former moves axially. The transmission component 5 is connected to the generator 3 to drive the generator 3 to generate electricity.

[0024] like Figures 1 to 5As shown, the scale body 1 is composed of a faceplate 11 and a base 12, which are fastened or screwed together to accommodate internal components such as a display screen, control circuit board, battery, and generator 3. The output of the generator 3 is connected to the power management circuit of the electronic scale to charge the battery or provide direct power. The rotation axis of the transmission component 5 coincides with or is parallel to the axis of the first support leg assembly 2. The transmission structure 8 is disposed between the first support leg assembly 2 and the transmission component 5, so that when the first support leg assembly 2 moves axially, it pushes the transmission component 5 to rotate around the axis of the first support leg assembly 2. Through the setting of the transmission structure 8, the first support leg assembly 2 can smoothly push the transmission component 5 to rotate around its own axis when moving axially, and transmit the rotational power to the generator 3 through the transmission component 5, thereby avoiding the problem of the rack or sector gear directly bearing the impact force of stepping in the traditional solution, and improving the structural strength and motion stability of the transmission system.

[0025] The transmission structure 8 includes a protrusion 81 on one of the first support leg assembly 2 and the transmission member 5, and a guide groove 82 on the other and cooperating with the protrusion 81. When the first support leg assembly 2 moves axially, the protrusion 81 presses against the side wall of the guide groove 82 to drive the transmission member 5 to rotate around the axis of the first support leg assembly 2.

[0026] The extension direction of the guide groove 82 has a certain helical angle or tilt angle relative to the axial direction of the first support foot assembly 2 to ensure that the axial displacement can be effectively converted into rotational torque. The protrusion 81 can be in the shape of a cylindrical ball, a hemispherical or cylindrical boss, a rectangular slider, etc. When the first support foot assembly 2 moves axially relative to the face shell 11, the protrusion 81 slides along the groove wall of the guide groove 82 and makes a pressing contact with the side wall of the guide groove 82, thereby decomposing the thrust of linear motion into a tangential component. This tangential component drives the transmission component 5 to rotate around the axis of the first support foot assembly 2.

[0027] In this embodiment, the protrusion 81 is provided on the first support foot assembly 2, and the guide groove 82 is provided on the transmission member 5. Alternatively, the protrusion 81 can be provided on the transmission member 5, and the guide groove 82 can be provided on the first support foot assembly 2. The two solutions are functionally equivalent, and those skilled in the art can choose flexibly according to their needs.

[0028] The transmission component 5 is a transmission ring sleeved on the first support foot assembly 2. The protrusions 81 are multiple and spaced apart on the outer peripheral sidewall of the first support foot assembly 2. The number of guide grooves 82 corresponds to the protrusions 81 and are spaced apart on the inner peripheral sidewall of the transmission component 5.

[0029] Multiple protrusions 81 are evenly distributed on the outer cylindrical surface of the first support foot assembly 2. The transmission component 5 is a ring structure, fitted onto the outside of the first support foot assembly 2, and has a number of identical and corresponding guide grooves 82 on its inner wall. Figure 3 As shown in the embodiment, there are three protrusions 81 and three guide grooves 82. By having multiple protrusions 81 and guide grooves 82 spaced apart on the first support leg assembly 2 and the transmission member 5, both stability and force transmission can be balanced, thus improving durability.

[0030] The transmission structure 8 can also be implemented in other ways, such as by providing an inclined boss or slope on the bottom or side wall of the first support foot assembly 2, and providing a push-receiving part on the transmission member 5 that contacts the slope. When the support foot is pressed down, the slope pushes the push-receiving part, causing the transmission member 5 to rotate at a certain angle. Alternatively, a spiral groove can be provided on the outer wall of the first support foot assembly 2, and a ball bearing embedded in the spiral groove can be provided on the transmission member 5. When the support foot is pressed down, the spiral groove pushes the ball bearing, causing the transmission member 5 to rotate.

[0031] A gear set 4 consisting of multi-stage gears is provided between the transmission component 5 and the generator 3, and transmission teeth 51 that mesh with the gear set 4 are provided on the outer peripheral sidewall of the transmission component 5.

[0032] By using gear set 4 for multi-stage gear speed increase, low-speed, high-torque input can be converted into high-speed, low-torque output. Even with only a small stroke of the support leg, sufficient power can be generated to power the electronic scale. The output end of gear set 4 is connected to the input end of generator 3. Through transmission gear 51, transmission component 5 can mesh with gear set 4, thereby connecting to generator 3 for power transmission.

[0033] The adjacent gears in the gear set 4 mesh with each other in the horizontal plane, so that the gears of each stage of the gear set 4 are arranged in a horizontal direction.

[0034] The side walls of the support legs are equipped with sector gears or racks to drive the generator. Traditional solutions typically require vertically stacking the gear sets, which occupies vertical space in the base and results in low motion stability. For example... Figure 3 As shown in the embodiment, the rotation axes of the gears in the gear set 4 are parallel to each other and extend vertically, and adjacent gears mesh with each other in the horizontal plane, so that the gears of each stage of the gear set 4 are arranged horizontally. Compared with the traditional solution, the horizontally arranged gear set only occupies the base plane space and does not affect the thinness of the product.

[0035] like Figures 2 to 5As shown in the embodiment, the base 12 is provided with a housing 10, and the generator 3 and gear set 4 are both disposed inside the housing 10. The housing 10 can be formed by assembling an upper cover and a lower cover, or it can have only an upper cover or a lower cover to save costs. The housing 10 is provided with a plurality of gear shaft holes 101 arranged vertically for mounting gear shafts. By arranging the gear shaft holes 101 vertically, after the gear shaft is installed in the gear shaft hole 101, the gears corresponding to the gear shaft are arranged horizontally.

[0036] In one embodiment, the generator 3 and gear set 4 can also be directly mounted on the base 12 or the mounting bracket 6, thereby completing the installation of the generator 3 and gear set 4, eliminating the need for separate upper and lower covers of the motor box, and further saving costs.

[0037] The base 12 is provided with a mounting bracket 6, and the transmission component 5 is rotatably mounted in the mounting bracket 6. A limiting groove 52 is provided on the outer peripheral side wall of the transmission component 5. A limiting block 61 is provided around the outer periphery of the transmission component 5, which can extend into the limiting groove 52 and limit the axial and radial displacement of the transmission component 5.

[0038] The base 12 has an integrally formed or fixedly mounted mounting bracket 6 on its inner side. This mounting bracket 6 supports and positions the transmission component 5, allowing it to rotate freely around its own axis while restricting its axial and radial displacement. Figure 3 , Figure 4 As shown in the embodiment, an annular or segmented limiting groove 52 is provided on the outer peripheral sidewall of the transmission component 5, and the limiting groove 52 extends along the circumferential direction of the transmission component 5. The mounting bracket 6 surrounds the outer periphery of the transmission component 5 and is provided with at least one limiting block 61, one end of which extends into the limiting groove 52 to form a sliding fit. The limiting block 61 prevents the transmission component 5 from moving along the axis of the support foot, and at the same time prevents the transmission component 5 from eccentrically shaking or falling out of the mounting position during rotation.

[0039] In one embodiment, the limiting block 61 is provided with multiple blocks and is evenly distributed along the circumference of the transmission member 5 to balance the force and avoid stress concentration at a single point; the limiting groove 52 is a continuous annular groove, so that the limiting block 61 can provide full-range limiting.

[0040] The mounting bracket 6 is provided with a guide post 62 arranged in a vertical direction, the first support foot assembly 2 is provided with a guide hole 211 that cooperates with the guide post 62, and an elastic element 7 that presses down on the first support foot assembly 2 is sleeved on the outside of the guide post 62.

[0041] like Figure 2 , Figure 4 , Figure 5As shown in the embodiment, the elastic element 7 is a return spring. The guide post 62, in cooperation with the guide hole 211, ensures the movement direction of the first support leg assembly 2, while the elastic element 7 achieves automatic reset.

[0042] The first support leg assembly 2 includes a mounting base 21 and a weighing foot 22 movably mounted on the mounting base 21. A weighing sensor 23 is provided between the mounting base 21 and the weighing foot 22. A spherical protrusion 231 is provided at the lower part of the weighing sensor 23.

[0043] like Figure 3 , Figure 5 As shown in the embodiment, the weighing foot 22 is connected to the mounting base 21 via a cantilever structure. The weighing sensor 23 is used to detect the pressure applied by the user to the weighing foot 22 and convert it into an electrical signal. The lower part of the weighing sensor 23 is provided with a spherical protrusion 231. An iron plate is embedded inside the weighing foot 22, and the upper surface of the iron plate forms a point contact or a small area surface contact with the spherical protrusion 231. When the weighing foot 22 is tilted due to uneven ground or tilting angle, the contact point between its built-in iron plate and the spherical protrusion 231 can automatically adjust the relative angle and position to always maintain effective force transmission. Compared with the method of fixing the rubber feet and sensors to the sensors with buckles or screws on the market, the support foot of this utility model will not be damaged due to tilting, and the weighing error is low.

[0044] A second support leg assembly 9 is also fixedly connected to the base 12. There are two of each of the first and second support leg assemblies 2 and 9. The two first support leg assemblies 2 are located on the same side of the base 12, and the two second support leg assemblies 9 are located on the side of the base 12 away from the first support leg assemblies 2. Both the first and second support leg assemblies 2 and 9 extend beyond the base 12. When the scale body 1 is in its initial state, the extension length of the first support leg assembly 2 is greater than the extension length of the second support leg assembly 9.

[0045] like Figure 1 As shown in the embodiment, the first support leg assembly 2 and the second support leg assembly 9 are distributed at the four corners of the base 12, forming a stable support surface. Simultaneously, the extension length of the first support leg assembly 2 is greater than the extension length of the second support leg assembly 9, ensuring that when the user stands, their weight preferentially drives the scale body 1 and the first support leg assembly 2 to move relative to each other, allowing the first support leg assembly 2 to move axially and reliably trigger the power generation mechanism.

[0046] The working principle of this utility model is as follows: When the user stands on the scale body 1, since the initial extension length of the two first support leg assemblies 2 is greater than that of the two second support leg assemblies 9, the two first support leg assemblies 2 will be compressed to the same height as the second support leg assemblies 9. During this process, the first support leg assembly 2 moves axially along the guide post 62, and at the same time, the protrusion 81 provided on the outer side of its mounting base 21 slides in the guide groove 82 opened in the inner wall of the transmission component 5, thereby converting the axial movement of the first support leg assembly 2 into the circumferential rotational movement of the transmission component 5. The transmission teeth 51 provided on the outer periphery of the transmission component 5 mesh with the first gear of the gear set 4. The rotation of the transmission component 5 will drive the gear set 4 to perform multi-stage speed-increasing transmission, drive the input shaft of the generator 3 to rotate, and power the electronic scale through the generator 3 to start it up. After the weighing sensor 23 collects and processes the pressure signal, it displays the weight data to the user through the display screen. When the user leaves the scale body 1, the elastic element 7 releases its elastic potential energy, pushing the first support foot assembly 2 to reset. The mounting base 21 drives the protrusion 81 to slide in the opposite direction along the guide groove 82, causing the transmission element 5 to rotate in the opposite direction, driving the gear set 4 again to drive the generator 3 to generate electricity until the scale body 1 returns to its initial state, ready for the next use.

Claims

1. A concealed power generation electronic scale, characterized in that, The weighing body (1) consists of a face shell (11) and a base (12). The weighing body (1) is provided with a first support leg assembly (2) that can move axially. The weighing body (1) is also provided with a generator (3). The first support leg assembly (2) is connected to a transmission component (5). A transmission structure (8) is provided between the first support leg assembly (2) and the transmission component (5) to push the latter to rotate around the axis of the first support leg assembly (2) when the former moves axially. The transmission component (5) is connected to the generator (3) to drive the generator (3) to generate electricity.

2. The concealed power generation electronic scale according to claim 1, characterized in that, The transmission structure (8) includes a protrusion (81) on one of the first support leg assembly (2) and the transmission member (5), and a guide groove (82) on the other and cooperating with the protrusion (81). When the first support leg assembly (2) moves axially, the protrusion (81) presses against the side wall of the guide groove (82) to drive the transmission member (5) to rotate around the axis of the first support leg assembly (2).

3. The electronic scale with concealed power generation according to claim 2, characterized in that, The transmission component (5) is a transmission ring sleeved on the first support foot assembly (2). The protrusions (81) are multiple and spaced apart on the outer peripheral sidewall of the first support foot assembly (2). The number of guide grooves (82) corresponds to the protrusions (81) and spaced apart on the inner peripheral sidewall of the transmission component (5).

4. The concealed power generation electronic scale according to claim 1, characterized in that, A gear set (4) consisting of multiple gears is provided between the transmission component (5) and the generator (3), and transmission teeth (51) that mesh with the gear set (4) are provided on the outer peripheral sidewall of the transmission component (5).

5. The concealed power generation electronic scale according to claim 4, characterized in that, The adjacent gears in the gear set (4) mesh with each other in the horizontal plane, so that the gears of each level of the gear set (4) are arranged in a horizontal direction.

6. The electronic scale with concealed power generation according to claim 1, characterized in that, The base (12) is provided with a mounting bracket (6), and the transmission component (5) is rotatably mounted in the mounting bracket (6). A limiting groove (52) is provided on the outer peripheral side wall of the transmission component (5). A limiting block (61) is provided on the mounting bracket (6) around the outer periphery of the transmission component (5), which can extend into the limiting groove (52) and limit the axial and radial displacement of the transmission component (5).

7. The concealed power generation electronic scale according to claim 6, characterized in that, The mounting bracket (6) is provided with a guide post (62) arranged in the vertical direction. The first support foot assembly (2) is provided with a guide hole (211) that cooperates with the guide post (62). An elastic element (7) that presses down on the first support foot assembly (2) is sleeved on the outside of the guide post (62).

8. The electronic scale with concealed power generation according to claim 1, characterized in that, The first support leg assembly (2) includes a mounting base (21) and a weighing foot (22) movably mounted on the mounting base (21). A weighing sensor (23) is provided between the mounting base (21) and the weighing foot (22), and a spherical protrusion (231) is provided at the lower part of the weighing sensor (23).

9. The electronic scale with concealed power generation according to claim 1, characterized in that, The base (12) is also fixedly connected to a second support foot assembly (9). There are two first support foot assemblies (2) and two second support foot assemblies (9). The two first support foot assemblies (2) are located on the same side of the base (12), and the two second support foot assemblies (9) are located on the side of the base (12) away from the first support foot assembly (2).

10. The electronic scale with concealed power generation according to claim 9, characterized in that, Both the first support foot assembly (2) and the second support foot assembly (9) extend out of the base (12). When the scale body (1) is in the initial state, the extension length of the first support foot assembly (2) is greater than the extension length of the second support foot assembly (9).

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