Self-powered electronic scale

Abstract

The utility model discloses a self-powered electronic scale. According to the self-powered electronic scale, the pedal protruding out of the scale surface is stepped to drive the gear assembly on the lower portion to rotate in an accelerated mode, finally the generator is driven to rotate rapidly to generate electricity, and then power is supplied to the electronic scale for starting and working. Part or all of the transmission assemblies of the electronic scale are made of metal materials, and the problem of tooth breakage failure is completely eradicated; the three or more springs are distributed on the periphery of the rack box, a circle formed by the springs is larger than the outer diameter of the pedal, the problem that the edge of the pedal is clamped and does not rebound is solved, and therefore the problems that in the prior art, when the pedal is treaded, teeth are broken, treading is inclined, clamping is not smooth, a product fails, and experience is poor are solved, the service life of the product is prolonged, and user experience is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic scales, in particular to a self-powered electronic scale. Background Art

[0002] With the deepening of energy-saving and environmental protection concepts, battery-free electronic scales have been more and more widely used in the market. This type of battery-free electronic scale is mainly divided into two categories: solar scales and self-generating scales; however, since solar scales need to use solar energy for charging, they have certain requirements for the use environment, and users are required to often place the scale in a strong light environment. If the user forgets to place the scale in a sunny place, it may not be able to start up, affecting the use. In addition, commonly used self-generating scales mostly use plastic racks and plastic gears for transmission, and only one spring is set in the middle. When the pedal is pressed, there are problems such as broken teeth, crooked steps, and jamming, resulting in product failure and poor experience.

[0003] Therefore, how to overcome the above-mentioned defects has become an important issue to be solved urgently by those skilled in the art. Utility Model Content

[0004] The utility model overcomes the shortcomings of the above-mentioned technology and provides a self-powered electronic scale.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A self-powered electronic scale comprises: a scale base 1, on which a self-generating component 3 and a weighing sensing component 2 are mounted, wherein the self-generating component 3 comprises a pedal 31 protruding from the top wall of the scale base 1, a meshing transmission component 32 driven by the pedal 31 for meshing transmission, and a generator 33 capable of rotating by the transmission of the meshing transmission component 32; the meshing transmission component 32 comprises: a rack box 321 arranged below the pedal 31 and moving downward by the downward pressure of the pedal 31, a rack 322 arranged on the rack box 321, a gear component 323 capable of rotating by meshing transmission with the rack 322, and the generator 33 capable of rotating by the rotation of the gear component 323; wherein a plurality of ribs 3211 extending outward are evenly distributed on the side of the rack box 321, and an elastic member 37 is connected below each rib 3211, and the bottom surface of the elastic member 37 abuts against the inner surface of the bottom wall of the scale base 1.

[0007] Preferably, the scale base 1 includes a scale panel 11 and a bottom shell 12 connected to the bottom of the scale panel 11, and the self-generating component 3 is installed on the scale panel 11; the scale panel 11 is provided with a through hole 111 for the rack box 321 to pass through, and an outer protective cover 34 is provided at the edge of the through hole 111, and the bottom surface of the outer protective cover 34 is locked to the bottom shell 12 by screws.

[0008] Preferably, the elastic member 37 is a spring, and a circular hole 32110 is provided at the extended end of each rib position 3211, and a stud 121 with a screw hole opposite to the circular hole 32110 is provided on the inner surface of the bottom shell 12, and the circular hole 32110 and the bottom shell 12 are connected together by a socket head screw 4, and the socket head screw 4 passes through the circular hole 32110 and the stud 121 in sequence from top to bottom, one end of the spring is connected to the extended end of the rib position 3211, and the other end is in contact with the inner surface of the bottom wall of the scale base 1, and the spring is arranged around the stud 121.

[0009] Preferably, a pedal cover 35 is connected above the pedal 31 , and a soft rubber pad 36 is directly provided between the pedal 31 and the outer protective cover 34 ; wherein the distance between the pedal 31 and the outer protective cover 34 is smaller than the distance between the lowest point of the rack 322 and the inner surface of the bottom shell 12 .

[0010] Preferably, the diameter of a circle formed by connecting the centers of the circular holes 32110 of the multiple ribs 3211 extending outward from the rack box 321 is larger than the diameter of the pedal cover 35 , and the number of the multiple ribs 3211 is three or more.

[0011] Preferably, a display frame 5 is provided on the surface of the scale body panel 11 , and a display screen 51 and a display module 52 are provided inside the scale body panel 11 at positions corresponding to the display frame 5 .

[0012] Preferably, the rack 322 is a metal rack, and the rack box 321 and the metal rack 322 are integrally formed or separately formed.

[0013] Preferably, the gear assembly 323 includes a gear box 3231, and a plurality of gears installed in the gear box 3231 and connected in sequence, wherein all or part of the plurality of gears are metal gears;

[0014] The gears meshing with the rack 322 are exposed on the gear box 3231 ; the gears meshing with the rack 322 and the gears on the shaft of the generator 33 are single-layer gears, and the gears between these single-layer gears are double-layer gears.

[0015] Preferably, the weighing sensing assembly 2 includes a plurality of sensor fixing seats 21 installed on the lower surface of the bottom shell, a weighing sensor 22 installed on the sensor fixing seat 21, a gasket 23 connected to the bottom of the weighing sensor 22, a supporting rubber foot 24 connected to the bottom of the gasket 23, and an anti-slip pad 25 connected to the bottom of the rubber foot 24.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. This case realizes the self-powered function of the electronic scale through the setting of the self-generating component, without the need for external power supply or regular replacement of batteries, and without relying on solar power supply, thus achieving energy self-sufficiency. Through the setting of the pedal, the user can power the device by stepping on it. The setting of the meshing transmission component can make the components inside it move when the pedal is pressed down, and convert the vertical movement of the pedal into rotational movement through the meshing transmission mechanism, thereby driving the generator to rotate, so as to achieve flexible self-generation.

[0018] 2. The meshing transmission assembly of this case can efficiently convert the rotational power of the generator through the linkage of its rack box, rack and gear assembly through the downward pressure of the pedal, and the meshing transmission between the rack and the gear ensures that the generator can stably and continuously output electrical energy when driven. The multiple ribs extending outwards and the elastic parts evenly distributed on the side of the rack box can enhance the stability of the structure. On the one hand, the pedal can be more evenly distributed to multiple ribs when subjected to force, and then dispersed to multiple elastic parts, reducing the phenomenon of broken teeth or stepping crooked caused by excessive force on a single spring, ensuring that the pedal is pressed smoothly and improving the user experience; on the other hand, it ensures that the pedal can be smoothly lowered and reset after being subjected to force, improving the durability and reliability of the electronic scale.

[0019] 3. The configuration of the rack as a metal rack and the gear as a metal gear in this case can change the current situation of using all plastic parts to using all or part of metal materials to ensure that the transmission does not break or fail, solve the problem of easy tooth breakage when the user steps hard, improve the product life, and solve the user's worries. The configuration of the gear box is to accommodate and protect the various components of the gear assembly to ensure smooth transmission between gears; the configuration of multiple gears is to facilitate the transmission connection of the gears in sequence to form a continuous power transmission path; the gears that mesh with the rack are designed to be exposed to the gear box so as to directly and effectively mesh with the rack while maintaining the compactness of the internal structure of the gear box; the design of the combination of single-layer and double-layer gears can reduce friction loss and improve transmission accuracy during transmission through single-layer gears; at the same time, double-layer gears can also be used to achieve space optimization and step-by-step speed change. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the exploded structure of the electronic scale in this case.

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the electronic scale in this case.

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the electronic scale in this case.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the electronic scale in this case with the scale body panel hidden. DETAILED DESCRIPTION

[0024] The following examples further illustrate the features of the present invention and other related features to facilitate understanding by those skilled in the art:

[0025] like Figure 1 and Figure 4 As shown, a self-powered electronic scale includes: a scale base 1, on which a self-generating component 3 and a weighing sensing component 2 are installed, and the self-generating component 3 includes a pedal 31 protruding from the top wall of the scale base 1, a meshing transmission component 32 driven by the pedal 31 for meshing transmission, and a generator 33 that can rotate when driven by the meshing transmission component 32.

[0026] As described above, the present invention realizes the self-powered function of the electronic scale by setting the self-generating component 3, without the need for an external power supply or regular replacement of batteries, and without relying on solar power supply, thereby achieving energy self-sufficiency. The pedal 31 is set so that the user can power the device by stepping on it. The setting of the meshing transmission component 32 can make the components inside the pedal 31 move when it is pressed down, and convert the vertical movement of the pedal into rotational movement through the meshing transmission mechanism, thereby driving the generator 33 to rotate, so as to realize flexible self-generation.

[0027] The meshing transmission assembly 32 includes: a rack box 321 arranged below the pedal 31 and moving downward due to the downward pressure of the pedal 31, a rack 322 arranged on the rack box 321, and a gear assembly 323 that meshes with the rack 322 and can rotate. The rack 322 drives the generator 33 to rotate through the gear assembly 323, thereby achieving self-power supply; wherein, three outwardly extending ribs 3211 are evenly distributed on the side of the rack box 321, and an elastic member 37 is connected below each rib position 3211, and there are three elastic members at three rib positions.

[0028] As described above, the meshing transmission assembly 32 of this case can efficiently convert the rotational power of the generator 33 through the linkage of its rack box 321, rack 322, and gear assembly 323 through the downward movement of the pedal, and the meshing transmission between the rack and the gear ensures that the generator can stably and continuously output electrical energy when driven. The multiple ribs 3211 extending outwards and the elastic member 37 are evenly distributed on the side of the rack box 321, which can enhance the stability of the structure. On the one hand, the pedal 31 can be more evenly distributed on the multiple ribs 3211 when subjected to force, and then dispersed to the multiple elastic members 37, reducing the phenomenon of broken teeth or stepping crooked caused by excessive force on a single spring, ensuring that the pedal is pressed smoothly and improving the user experience; on the other hand, it ensures that the pedal 31 can be smoothly lowered and reset after being subjected to force, improving the durability and reliability of the electronic scale.

[0029] like Figure 1 and Figure 2 As shown, the scale base 1 includes a scale panel 11 and a bottom shell 12 connected to the bottom of the scale panel 11, and the self-generating component 3 is installed on the scale panel 11; the scale panel 11 is provided with a through hole 111 for the rack box 321 to pass through, and an outer protective cover 34 is provided at the edge of the through hole 111, the upper end surface of the outer protective cover 34 passes through the through hole 111 and is hung on the surface of the scale panel 11, and the lower end surface is locked with the bottom shell 12 by screws. In specific implementation, the upper end surface of the outer protective cover 34 extends outward with a convex edge so that it can be hung on the scale panel 11, and because the lower end surface of the outer protective cover 34 is locked with the bottom shell 12 by screws, it is equivalent to hanging the bottom shell 12 and the scale panel 11 together. When stepped on in the middle, the bottom shell 12 will not be squeezed by the spring / elastic member 37 to arch downward and touch the ground, and will not affect the data of the weighing sensing component 2, thereby improving the weighing accuracy. The lower end surface of the outer protective cover 34 is locked with the bottom shell 12 by screws, which can ensure that the bottom shell in the middle of the scale body is not easily deformed when stepped on. The through hole 111 is provided to facilitate the positioning and installation of the self-generating component 3.

[0030] like Figure 1 and Figure 2As shown, in a specific implementation, the elastic member 37 is a spring, and a circular hole 32110 is provided at the extended end of each rib position 3211, and a stud 121 with a screw hole is provided on the inner surface of the bottom shell 12, which is opposite to the circular hole 32110 from top to bottom. The circular hole 32110 and the bottom shell 12 are connected together by a plug screw 4, and the plug screw 4 passes through the circular hole 32110 and the stud 121 in sequence from top to bottom. One end of the spring is connected to the extended end of the rib position 3211, and the other end is in contact with the inner surface of the bottom wall of the scale body base 1, and the spring is arranged around the stud 121. In this way, the coordinated arrangement of the circular hole 32110 and the stud 121 can play a role in guiding and limiting the spring, ensuring that the pedal 31 and the rack box 321 can only move up and down without excessive displacement or shaking in the horizontal direction, thereby ensuring the accurate measurement of the scale body and the long-term stability of use. Due to the arrangement of the insert screw 4, when the rack box 321 rises with the pedal 31 and approaches the top position, the round hole 32110 on the extended end of the rib 3211 connected to the rack box will contact the top of the insert screw 4, so that the rack box cannot continue to rise through the obstruction of the screw, so as to achieve the effect of controlling the rack box 321 to stop rising after rising to the top position.

[0031] like Figure 1 and Figure 2 As shown, in a specific implementation, a pedal cover 35 is connected above the pedal 31, and a soft rubber pad 36 is directly provided between the pedal 31 and the outer protective cover 34; wherein the distance between the pedal 31 and the outer protective cover 34 is less than the distance between the lowest point of the rack 322 and the inner surface of the bottom shell 12. In this way, the pedal cover 35 can protect the pedal 31; the setting of the soft rubber pad 36 can buffer the impact between the pedal 31 and the outer protective cover 34. By setting the distance between the pedal 31 and the outer protective cover 34 to be less than the distance between the lowest point of the rack 322 and the inner surface of the bottom shell 12, it can be ensured that the pedal first contacts the protective cover 34 and the scale panel 11 when it is stepped on to the end; and since the scale panel is mostly a rigid glass panel, it can be ensured that the scale body is not damaged and squeezed into the bottom shell 12 when stepped on.

[0032] like Figure 1 and Figure 2As shown, in a specific implementation, the diameter of the circle formed by the centers of the circular holes 32110 of the multiple ribs 3211 extending outward from the rack box 321 is larger than the diameter of the pedal cover 35, and the number of the multiple ribs 3211 is three or more, preferably three. In this way, the setting that the diameter of the circle formed by the centers of the circular holes 32110 of the multiple ribs 3211 extending outward from the rack box 321 is larger than the diameter of the pedal cover 35 forms a stable support structure, which makes the force distribution during the pedaling process more uniform, can ensure the balance of stability and rebound when pedaling, and can ensure that it will not be crooked or stuck even when stepping on the edge of the pedal, further improving the user experience; the number of ribs 3211 is preferably three, because three can form a stable triangular support structure, and the three ribs are evenly distributed around the rack box, so that the pedaling force can be evenly distributed to each rib; and setting the number of three can not only ensure the above stability effect but also reduce the difficulty of production.

[0033] like Figure 1 and Figure 2 As shown, in a specific implementation, a display frame 5 is provided on the surface of the scale panel 11, and a display screen 51 and a display module 52 are provided inside the scale panel 11 at a position corresponding to the display frame 5. In this way, the user can intuitively view the weighing data.

[0034] like Figure 1 and Figure 2 As shown, in a specific implementation, the rack 322 is a metal rack, and the rack box 321 and the metal rack 322 are integrally formed or separately formed.

[0035] The gear assembly 323 includes a gear box 3231, and a plurality of gears installed in the gear box 3231 and connected in sequence, wherein all or part of the plurality of gears are metal gears;

[0036] The gears meshing with the rack 322 are exposed on the gear box 3231 ; the gears meshing with the rack 322 and the gears on the shaft of the generator 33 are single-layer gears, and the gears between these single-layer gears are double-layer gears.

[0037] As mentioned above, the rack 322 is a metal rack and the gear is a metal gear, which can change the current situation of using all plastic parts to using all or part of metal materials, so as to ensure that the transmission does not break or fail, solve the problem of easy tooth breakage when the user steps hard, improve the product life, and solve the user's worries. The gear box 3231 is set to accommodate and protect the various components of the gear assembly to ensure smooth transmission between gears; multiple gears are set so that the gears are connected in sequence to form a continuous power transmission path; the gears that mesh with the rack 322 are designed to be exposed to the gear box 3231, so as to directly and effectively mesh with the rack, while maintaining the compactness of the internal structure of the gear box; the design of the combination of single-layer and double-layer gears can reduce friction loss and improve transmission accuracy during transmission through single-layer gears; at the same time, double-layer gears can also be used to achieve space optimization and step-by-step speed change.

[0038] like Figure 1 and Figure 2 As shown, in a specific implementation, the weighing induction assembly 2 includes a plurality of sensor fixing seats 21 installed on the lower surface of the bottom shell, a weighing sensor 22 installed on the sensor fixing seat 21, a gasket 23 connected to the bottom of the weighing sensor 22, a supporting rubber foot 24 connected to the bottom of the gasket 23, and an anti-skid pad 25 connected to the bottom of the rubber foot 24. In this way, the sensor fixing seat 21 is set to stably support and fix the weighing sensor 22, ensuring that the sensor can work accurately and stably without being interfered by external factors. The setting of the weighing sensor is responsible for converting the weight of the measured object into a measurable electrical signal output. The setting of the gasket 23 can play a role in buffering and adjusting the position of the sensor, which can reduce the direct contact between the sensor and the bottom shell, and reduce the measurement error caused by uneven installation or deformation of the bottom shell. The setting of the rubber foot 24 plays a role in supporting the entire weighing induction assembly, which is made of a material with good elasticity and wear resistance to ensure stability and durability for long-term use. The provision of the anti-slip pad 25 can increase the friction with the ground or the placement surface, prevent the scale body from sliding or shifting during use, and help improve the accuracy and safety of measurement.

[0039] As mentioned above, the working process of this case is as follows:

[0040] The user steps on the pedal cover, driving the pedal below, the rack box connected to it, and the metal rack wrapped on the side to move downward, which in turn drives the gear assembly meshing with the rack to accelerate in sequence, and finally drives the generator to run quickly to generate electricity. The electricity is transmitted to the module for storage and converted into DC voltage stabilization for powering on the scale. When people step on the scale again, they can weigh themselves without batteries.

[0041] When the foot is released, the multiple compressed springs under the rack box will rebound, pushing up the rack box, pedal and pedal cover and bouncing down together. The socket screw controls the rack box to rise to the top position and then no longer rises.

[0042] When weighing, the human body presses on the scale panel, which will transmit pressure to the sensor fixing seat, the sensor and the gasket underneath, the rubber feet, the anti-slip mat and the working floor in turn. The working floor and both ends of the weighing sensor fixing seat are rotated onto the weighing sensor, causing its cantilever to deform. The weighing sensor will transfer the deformation to the strain gauge on it, convert the deformation into resistance and current changes, and finally connect to the module to amplify the identification electrical signal, and display the measured weight value on the display screen.

[0043] In summary, this case provides a new type of self-powered electronic scale, which drives the gear assembly below to accelerate its operation by stepping on the pedal protruding from the scale surface, and finally drives the generator to rotate quickly to generate electricity, and then supplies power to the electronic scale to start up and work. Some or all of the transmission components of the electronic scale in this case are made of metal to prevent the problem of broken teeth and failure; three or more springs are distributed on the periphery of the rack box, and the circle formed is larger than the outer diameter of the pedal to prevent the problem of the edge of the pedal getting stuck and not rebounding, thereby solving the problems of broken teeth, crooked and stuck, product failure, and poor experience when the pedal is pressed in the prior art, extending the product life and greatly improving the user experience.

[0044] As mentioned above, this case protects a self-powered electronic scale, and all technical solutions that are the same or similar to this case should be deemed to fall within the scope of protection of this case.

Claims

1. A self-powered electronic scale, characterized in that include: A scale body base (1), wherein a weighing induction component (2) and a self-generating component (3) are mounted on the scale body base (1), wherein the self-generating component (3) comprises a pedal (31) protruding from the top wall of the scale body base (1), a meshing transmission component (32) driven by the pedal (31) to perform meshing transmission, and a generator (33) driven by the meshing transmission component (32) to rotate; the meshing transmission component (32) comprises: a gear disposed below the pedal (31) and moving downward when the pedal (31) is pressed downward; A rack box (321), a rack (322) disposed on the rack box (321), and a gear assembly (323) that is meshed with the rack (322) and can rotate, wherein the rack (322) drives the generator (33) to rotate through the gear assembly (323); wherein a plurality of ribs (3211) extending outward are evenly distributed on the side of the rack box (321), and an elastic member (37) is connected below each rib (3211), and the bottom surface of the elastic member (37) abuts against the inner surface of the bottom wall of the scale base (1).

2. The self-powered electronic scale according to claim 1, characterized in that: The scale body base (1) comprises a scale body panel (11) and a bottom shell (12) connected to the bottom of the scale body panel (11); the self-generating component (3) is installed on the scale body panel (11); the scale body panel (11) is provided with a through hole (111) for a rack box (321) to pass through, and an outer protective cover (34) is provided at the edge of the through hole (111); the upper end surface of the outer protective cover (34) passes through the through hole (111) and is hung on the surface of the scale body panel (11), and the lower end surface is locked with the bottom shell (12) by screws.

3. The self-powered electronic scale according to claim 2, characterized in that: The elastic member (37) is a spring, and a circular hole (32110) is provided at the extended end of each rib position (3211). The inner surface of the bottom shell (12) is provided with a stud (121) with a screw hole and opposite to the circular hole (32110) up and down. The circular hole (32110) and the bottom shell (12) are connected together by a plug screw (4). The plug screw (4) passes through the circular hole (32110) and the stud (121) in sequence from top to bottom. One end of the spring is connected to the extended end of the rib position (3211), and the other end is in contact with the inner surface of the bottom wall of the scale base (1), and the spring is arranged around the stud (121).

4. The self-powered electronic scale according to claim 2, characterized in that: A pedal cover (35) is connected above the pedal (31), and a soft rubber pad (36) is directly provided between the pedal (31) and the outer protective cover (34); wherein the distance between the pedal (31) and the outer protective cover (34) is smaller than the distance between the bottom of the rack (322) and the inner surface of the bottom shell (12).

5. The self-powered electronic scale according to claim 3, characterized in that: The diameter of the circle formed by connecting the centers of the circular holes (32110) of the multiple ribs (3211) extending outward from the rack box (321) is greater than the diameter of the pedal cover (35), and the number of the multiple ribs (3211) is three or more.

6. The self-powered electronic scale according to claim 2, characterized in that: A display frame (5) is provided on the surface of the scale body panel (11), and a display screen (51) and a display module (52) are provided inside the scale body panel (11) at a position corresponding to the display frame (5).

7. The self-powered electronic scale according to claim 1, characterized in that: The rack (322) is a metal rack.

8. The self-powered electronic scale according to claim 1 or 7, characterized in that: The gear assembly (323) comprises a gear box (3231), and a plurality of gears mounted on the gear box (3231) and connected in sequence, wherein all or part of the plurality of gears are metal gears; The gears meshing adjacent to the rack (322) are exposed on the gear box (3231); the gears meshing adjacent to the rack (322) and the gears on the shaft of the generator (33) are single-layer gears, and the gears between these single-layer gears are double-layer gears.

9. The self-powered electronic scale according to claim 1, characterized in that: The weighing sensing assembly (2) comprises a plurality of sensor fixing seats (21) mounted on the lower surface of the bottom shell, a weighing sensor (22) mounted on the sensor fixing seat (21), a gasket (23) connected to the bottom of the weighing sensor (22), a supporting rubber foot (24) connected to the bottom of the gasket (23), and an anti-slip pad (25) connected to the bottom of the rubber foot (24).

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