CN114397000A - Electronic scale self-power supply functional mechanism and electronic scale - Google Patents
Electronic scale self-power supply functional mechanism and electronic scale Download PDFInfo
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- CN114397000A CN114397000A CN202210053579.2A CN202210053579A CN114397000A CN 114397000 A CN114397000 A CN 114397000A CN 202210053579 A CN202210053579 A CN 202210053579A CN 114397000 A CN114397000 A CN 114397000A
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- lifting
- self
- electronic scale
- scale
- pedal
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- 230000007246 mechanism Effects 0.000 title claims abstract description 13
- 239000000523 sample Substances 0.000 claims abstract description 37
- 238000005303 weighing Methods 0.000 claims abstract description 31
- 230000005021 gait Effects 0.000 claims abstract description 27
- 238000001514 detection method Methods 0.000 claims abstract description 26
- 238000010248 power generation Methods 0.000 claims abstract description 23
- 230000006698 induction Effects 0.000 claims description 10
- 239000004973 liquid crystal related substance Substances 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 201000010099 disease Diseases 0.000 abstract description 7
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 7
- 238000001467 acupuncture Methods 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 abstract description 4
- 238000012937 correction Methods 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 230000002159 abnormal effect Effects 0.000 description 8
- 230000036544 posture Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 230000036541 health Effects 0.000 description 3
- 210000004197 pelvis Anatomy 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 206010017577 Gait disturbance Diseases 0.000 description 1
- 206010036436 Posture abnormal Diseases 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003862 health status Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 208000015122 neurodegenerative disease Diseases 0.000 description 1
- 210000003049 pelvic bone Anatomy 0.000 description 1
- 206010039722 scoliosis Diseases 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003781 tooth socket Anatomy 0.000 description 1
- 238000004260 weight control Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/44—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing persons
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
- A61B5/112—Gait analysis
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/52—Weighing apparatus combined with other objects, e.g. furniture
Abstract
The invention provides a self-powered functional mechanism of an electronic scale and the electronic scale, which comprise a scale body, wherein a pair of lifting weighing treadles are symmetrically arranged on the left side and the right side of the scale body along the central line of the scale body, weight sensors are respectively arranged at four corners of the bottom of each gait detection treadle, the other ends of lifting springs are respectively and fixedly arranged on the inner side of the scale body, and lifting blocks on the two sides are respectively and movably connected with a self-powered module; the self-powered electronic scale can complete power generation and information acquisition in one step, achieves monitoring of weight distribution of two feet of a patient and early warning of related diseases through the gait detection pedals arranged on the left and right sides, can analyze the wear condition of the foot type or the vamp through the probe contact, effectively assists the children or the related disease patients to carry out gait correction, and meanwhile, the probe contact also has an acupuncture point massage function, is multifunctional, practical and efficient.
Description
Technical Field
The invention relates to the technical field of weighing scales, in particular to a self-powered functional mechanism of an electronic scale and the electronic scale.
Background
A sustainable self-powered electronic scale of the prior art having publication number "CN 107843325A" comprises: a base; the electronic weighing component is arranged in the base; mechanical power generation subassembly, install in the base, its input is connected with a flywheel subassembly, rotate drive mechanical power generation subassembly through the flywheel subassembly and generate electricity, send electric energy and provide the electronic subassembly of weighing and use, the device generates electricity through adopting flywheel subassembly drive mechanical power generation subassembly, because the flywheel subassembly leaves the back at the application of force, still can rely on inertial momentum to continuously rotate a period (can reach two minutes's rotation time, to the application of electronic weighing subassembly, two minutes's time has enough), realize the purpose that mechanical power generation subassembly continuously generated electricity, moreover, the steam generator is simple in structure, mechanical power generation subassembly can continuously generate electricity, satisfy the work demand of electronic weighing subassembly.
However, the sustainable self-powered electronic scale still has obvious defects in the using process: 1. the device can stand on the surface of the electronic scale to realize the weighing of the weight after the power generation assembly works by trampling the power generation assembly in advance, and the operation of two steps of power generation and weighing are needed in the weighing process, so that the use is inconvenient; 2. the electronic scale has single function, and the sole can reflect a plurality of health indexes of a human body, such as spine, leg shape and foot shape, even find incorrect walking postures in time, and the electronic scale in the device and the prior art cannot finish the collection and analysis of the plurality of health indexes.
Disclosure of Invention
The invention aims to provide a self-powered functional mechanism of an electronic scale and the electronic scale, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a self-powered functional mechanism of an electronic scale comprises a scale body, wherein a pair of lifting weighing treadles is symmetrically arranged on the left side and the right side of the scale body along the center line of the scale body, the lifting weighing treadles on the left side and the right side respectively comprise a gait detection treadle arranged on the upper part, weight sensors are arranged at four corners of the bottom of the gait detection treadle, one ends of the weight sensors, far away from the gait detection treadles, are fixedly connected onto a supporting seat, the bottoms of the supporting seats on the two sides are fixedly connected with a pair of lifting blocks, the lifting blocks are arranged in the scale body in a penetrating manner, one sides, far away from the supporting seat, of the lifting blocks on the two sides are fixedly connected with lifting springs, the other ends of the lifting springs are fixedly arranged on the inner side of the scale body, and the lifting blocks on the two sides are movably connected with a self-powered module;
the upper surface of the gait detection pedal is densely provided with a plurality of probe holes, a shoe type induction probe is arranged in each probe hole in a lifting mode, the bottom of each shoe type induction probe is connected with the inside of the gait detection pedal through a probe spring, probe contacts are arranged at the bottoms of the shoe type induction probes in a one-to-one correspondence mode, and the probe contacts are electrically connected with the contact plates;
the scale body is also provided with an integrated liquid crystal display screen which can respectively display the lifting type weighing pedal on the left side and the lifting type weighing pedal on the right side and the total weight reading, and the self-powered module is electrically connected with the weight sensor, the contact board and the liquid crystal display screen.
Preferably, the self-powered module comprises a driving gear, the driving gear is meshed with tooth grooves formed in the side edge of the lifting block, the driving gear is meshed with a driven accelerating gear through a transition gear, a wheel shaft of the driven accelerating gear is coaxially arranged with the power generation box, and a positive wiring and a negative wiring are arranged on one side of the power generation box.
Preferably, both sides the elevator block is inside all to be provided with positive pole wiring and negative pole wiring, positive pole wiring and negative pole wiring respectively with the positive pole and the negative pole electric connection of positive negative pole wiring, positive pole wiring and negative pole wiring keep away from positive negative pole wiring one end respectively with weight sensor and contact board electric connection.
An electronic scale comprises a power supply pedal for self-power generation, wherein the power supply pedal adopts the electronic scale self-power supply function mechanism.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the self-generating electronic scale, when the weight of a user needs to be detected, the power generation and information acquisition can be completed in one step only by stepping double feet into the gait detection pedal, and compared with the self-generating electronic scale in the prior art, the self-generating electronic scale is higher in detection efficiency and more convenient and faster to use;
2. the invention can respectively complete the detection of the weight of two legs through the gait detection pedals arranged on the left and the right, for a normal person, under the condition of standard standing posture, the weight born by the two feet is evenly distributed, so the weight readings on the two sides are respectively the average value of the total weight, for the patients with scoliosis, lumbar degenerative disease and pelvic bone abnormality, the gravity center is usually inclined towards the sole on one side, so the weight distribution of the two feet is different, and therefore, the early warning can be carried out on the patients through the respective reading of the two feet, the purpose of early finding early treatment is achieved, in addition, the electronic scale can be used for carrying out continuous detection on the patients, whether the conditions of the patients have positive or deterioration tendency is judged through long-term observation, and the purpose of carrying out continuous monitoring on the weight distribution of the two feet of the patients is further achieved;
3. the walking posture monitoring device is also provided with a probe contact which can analyze the wear condition of the foot type or the vamp so as to judge whether the condition such as abnormal walking posture exists in a weigher, the abnormal walking posture is usually expressed in that the vamp is worn towards the inner side or the outer side in a single direction, and the problem of unobserved posture can be found in time through the arrangement of the probe contact, so that the walking posture monitoring device can effectively assist the children or related disease patients to carry out gait correction or related disease monitoring;
4. the probe contact also has an acupuncture point massage function, can massage the bottom crossing acupuncture points by treading on soles, is beneficial to relieving fatigue, and is multifunctional, practical and efficient.
The self-power-generation electronic scale can complete power generation and information acquisition in one step, the weight distribution of two feet of a patient can be monitored and early warning of related diseases can be achieved through the gait detection pedals arranged on the left and right sides, the foot type or vamp abrasion condition can be analyzed through the probe contact, gait correction of children or related disease patients can be effectively assisted, and meanwhile, the probe contact also has an acupuncture point massage function, is multifunctional, practical and efficient.
Drawings
FIG. 1 is a schematic view of a dismounting structure of the lifting type weighing pedal of the invention;
FIG. 2 is a perspective view of the connection structure of the lifting block of the present invention;
FIG. 3 is a schematic view of the weight sensor connection structure of the present invention;
FIG. 4 is an enlarged view of the area A of the present invention;
fig. 5 is a perspective view of the overall structure of the present invention.
In the figure: the device comprises a scale body 1, a lifting type weighing pedal 2, a gait detection pedal 3, a weight sensor 4, a support seat 5, a lifting block 6, a lifting spring 7, a self-powered module 8, a probe hole 9, a shoe type induction probe 10, a probe spring 11, a probe contact 12, a contact plate 13, a liquid crystal display screen 14, a driving gear 15, a tooth space 16, a transition gear 17, a driven accelerating gear 18, a power generation box 19, a positive wiring 20 and a negative wiring 21, and a negative wiring 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
referring to fig. 1-5, the present invention provides a technical solution:
the first embodiment is as follows:
a self-powered functional mechanism of an electronic scale comprises a scale body 1, wherein a pair of lifting weighing treadles 2 is symmetrically arranged on the left side and the right side of the scale body 1 along the center line of the scale body, the lifting weighing treadles 2 on the left side and the right side respectively comprise a gait detection treadle 3 arranged on the upper part, weight sensors 4 are arranged at four corners of the bottom of the gait detection treadle 3, one ends of the weight sensors 4 far away from the gait detection treadles 3 are fixedly connected onto a supporting seat 5, the bottoms of the supporting seats 5 on the two sides are fixedly connected with a pair of lifting blocks 6, the lifting blocks 6 are arranged in the scale body 1 in a penetrating manner, one sides of the lifting blocks 6 on the two sides far away from the supporting seat 5 are fixedly connected with lifting springs 7, the other ends of the lifting springs 7 are fixedly arranged on the inner side of the scale body 1, and the lifting blocks 6 on the two sides are movably connected with a self-powered module 8;
a plurality of probe holes 9 are densely arranged on the upper surface of the gait detection pedal 3, shoe type induction probes 10 are arranged in the probe holes 9 in a lifting mode, the bottoms of the shoe type induction probes 10 are connected with the inside of the gait detection pedal 3 through probe springs 11, probe contacts 12 are arranged at the bottoms of the shoe type induction probes 10 in a one-to-one correspondence mode, and the probe contacts 12 are electrically connected with a contact plate 13;
the scale body 1 is also provided with an integrated liquid crystal display 14 which can respectively display the lifting type weighing pedal 2 on the left side and the lifting type weighing pedal 2 on the right side and the total weight reading, and the self-powered module 8 is electrically connected with the weight sensor 4, the contact board 13 and the liquid crystal display 14.
In the embodiment, when a user needs to weigh, the user treads the lifting type weighing pedal 2 by two feet, the lifting type weighing pedal 2 overcomes the elasticity of the lifting spring 7 to move downwards due to the pressing of the weight of a human body, at the moment, the lifting type weighing pedal 2 descends to drive the supporting seat 5 to descend, the supporting seat 5 is pressed to convert the gravitational potential energy of the human body into electric energy to supply power to various electronic elements arranged in the scale body 1, because the lifting type weighing pedal 2 of the invention adopts a left-right independent arrangement, when the user stands on the left side and the right side, the stress of the two feet can be respectively detected by the weight sensors arranged at the bottom of the respective lifting type weighing pedal 2, if the readings on the two sides are consistent or the difference is negligible, the user is prompted to stand normally, and the risk of abnormal occurrence of a spine, a pelvis or a leg is prompted to be lower, if the weight difference of the lifting type weighing pedal plates 2 at the two sides is obvious, the potential posture abnormal risk is prompted to exist for the user, the potential health risk can be timely discovered by human eyes in the early stage of the abnormal spine, pelvis or leg of the patient, particularly for children, in addition, the upper part of the lifting type weighing pedal plate 2 is provided with a gait detection pedal plate 3, the gait detection pedal plate 3 can analyze the abnormal foot shape or shoe shape according to the pressing condition, the foot shape structure can be simulated according to the pressing of a probe contact 12 through a built-in PLC circuit, if the abnormal conditions of the asymmetrical electric shock at the two sides or the unfilled corner at the foot root part occur in the stepping process, the abnormal foot bottom shape or the abnormal daily walking posture of the user can be prompted to exist, and the method is suitable for tracking the patient with abnormal gait, in addition, a Bluetooth wireless communication module can be arranged in a built-in PLC device, the intelligent mobile phone at present of cooperation, realize the storage and the tracking of data, to having discovered the backbone, the unusual patient of pelvis or leg type, use this electronic scale through the continuity, can trail patient's both feet deviation and progress, if the both feet deviation lasts the increase, then probably indicate that patient's disease is in the advanced stage, need in time seek medical advice and look over, through this kind of mode, in weight control, fully collect foot type or gait information, and then detect patient's health status, to daily use, and the setting of probe contact 12 can trample the in-process at the barefoot and massage the end of a deal, the practicality of this electronic scale has been improved greatly.
Example two:
in this embodiment: the self-powered module 8 comprises a driving gear 15, the driving gear 15 is meshed with a tooth socket 16 arranged on the side edge of the lifting block 6, the driving gear 15 is meshed with a driven accelerating gear 18 through a transition gear 17, the wheel shaft of the driven accelerating gear 18 is coaxially arranged with a power generation box 19, a positive wiring 20 and a negative wiring 20 are arranged on one side of the power generation box 19, the lifting block 6 is pressed through the gravitational potential energy of a human body in the human body treading process, because the lifting block is meshed with the driving gear 15, the lifting block 6 descends to drive the driving gear 15 to rotate in the user treading process, the rotating speed of a bearing in the power generation box 19 can be greatly improved through the arrangement of the transition gear 17 and the driven accelerating gear 18, when the lifting block 6 is treaded to the lowest limit stroke, the lifting block 6 is separated from the driving gear 15 at the moment, the power generation box 19 continues to rotate and generate power under the inertia of a self bearing, and because the lifting block 6 reaches the lowest stroke and is limited and fixed, at this time, the weight sensor 4 can accurately measure the weight of the user, and the self-generating electricity and the measuring process are completed in one step.
Example three:
in this embodiment: the inside positive wiring 21 and the negative wiring 22 of all being provided with of lifter block 6 of both sides, positive wiring 21 and negative wiring 22 respectively with the positive and negative electric connection of positive negative wiring 20, positive wiring 21 and negative wiring 22 keep away from positive negative wiring 20 one end respectively with weighing transducer 4 and contact board 13 electric connection, set up in lifter block 6 through with positive wiring 21 and negative wiring 22, thereby avoid the use of inside unnecessary wiring, guaranteed to weigh the influence minimum to the circuit of the lift of trampling the in-process over-and-under type pedal 2 of weighing, and then help prolonging the life of this electronic scale.
An electronic scale comprises a power supply pedal for self-power generation, wherein the power supply pedal adopts the electronic scale self-power supply function mechanism.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides an electronic scale is from power supply function mechanism, includes the balance body (1), its characterized in that: a pair of lifting weighing treadles (2) are symmetrically arranged on the left side and the right side of the scale body (1) along the central line thereof, the lifting weighing treadles (2) on the left side and the right side respectively comprise gait detection pedals (3) arranged on the upper parts, four corners of the bottom of the gait detection pedal (3) are all provided with weight sensors (4), one end of the weight sensor (4) far away from the gait detection pedal (3) is fixedly connected to the supporting seat (5), the bottoms of the supporting seats (5) at two sides are fixedly connected with a pair of lifting blocks (6), the lifting block (6) is arranged in the scale body (1) in a penetrating way, one side of the lifting block (6) at two sides far away from the supporting seat (5) is fixedly connected with a lifting spring (7), the other ends of the lifting springs (7) are fixedly arranged on the inner side of the scale body (1), and the lifting blocks (6) on the two sides are movably connected with the self-powered module (8);
the upper surface of the gait detection pedal (3) is densely provided with a plurality of probe holes (9), a plurality of shoe-shaped induction probes (10) are arranged in the probe holes (9) in a lifting mode, the bottoms of the shoe-shaped induction probes (10) are connected with the inside of the gait detection pedal (3) through probe springs (11), probe contacts (12) are arranged at the bottoms of the shoe-shaped induction probes (10) in a one-to-one corresponding mode, and the probe contacts (12) are electrically connected with a contact plate (13);
the scale body (1) is further provided with an integrated liquid crystal display (14) capable of respectively displaying the left and right lifting type weighing pedal (2) and total weight reading, and the self-powered module (8) is electrically connected with the weight sensor (4), the contact board (13) and the liquid crystal display (14).
2. A self-powered functional mechanism of an electronic balance as claimed in claim 1, wherein: the self-powered module (8) comprises a driving gear (15), the driving gear (15) is meshed with a tooth groove (16) formed in the side edge of the lifting block (6), the driving gear (15) is meshed with a driven accelerating gear (18) through a transition gear (17), a wheel shaft of the driven accelerating gear (18) is coaxially arranged with a power generation box (19), and a positive and negative connection wire (20) is arranged on one side of the power generation box (19).
3. A self-powered functional mechanism of an electronic balance as claimed in claim 2, wherein: both sides elevator block (6) are inside all to be provided with anodal wiring (21) and negative pole wiring (22), anodal wiring (21) and negative pole wiring (22) respectively with the anodal and negative pole electric connection of positive negative connection (20), positive negative connection (20) one end is kept away from respectively with weight sensor (4) and contact board (13) electric connection to anodal wiring (21) and negative pole wiring (22).
4. The utility model provides an electronic scale, is including being used for carrying on the power supply footboard from electricity generation which characterized in that: the power supply pedal adopts the self-power supply functional mechanism of the electronic scale as claimed in any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210053579.2A CN114397000A (en) | 2022-01-18 | 2022-01-18 | Electronic scale self-power supply functional mechanism and electronic scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210053579.2A CN114397000A (en) | 2022-01-18 | 2022-01-18 | Electronic scale self-power supply functional mechanism and electronic scale |
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| Publication Number | Publication Date |
|---|---|
| CN114397000A true CN114397000A (en) | 2022-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210053579.2A Pending CN114397000A (en) | 2022-01-18 | 2022-01-18 | Electronic scale self-power supply functional mechanism and electronic scale |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539453A (en) * | 2008-03-21 | 2009-09-23 | 深圳力合高科技有限公司 | Electronic scale with self-powered function |
| CN208313409U (en) * | 2018-05-04 | 2019-01-01 | 广东永衡良品科技有限公司 | A kind of self power generation and the electronic scale with wireless transmission function |
| CN210036935U (en) * | 2019-07-22 | 2020-02-07 | 中山市吉宝衡器有限公司 | Self-generating body weight scale capable of measuring height |
| CN112914192A (en) * | 2021-04-02 | 2021-06-08 | 皇甫翌铭 | Weight shoes with detect plantar pressure |
| US20210361239A1 (en) * | 2018-01-06 | 2021-11-25 | Myant Inc. | Health monitoring mat |
| CN214854658U (en) * | 2021-04-02 | 2021-11-26 | 皇甫翌铭 | Weight shoes with detect plantar pressure |
| CN215414000U (en) * | 2021-06-11 | 2022-01-04 | 中山市亿莱电子有限公司 | Electronic scale with external self-generating device |
-
2022
- 2022-01-18 CN CN202210053579.2A patent/CN114397000A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539453A (en) * | 2008-03-21 | 2009-09-23 | 深圳力合高科技有限公司 | Electronic scale with self-powered function |
| US20210361239A1 (en) * | 2018-01-06 | 2021-11-25 | Myant Inc. | Health monitoring mat |
| CN208313409U (en) * | 2018-05-04 | 2019-01-01 | 广东永衡良品科技有限公司 | A kind of self power generation and the electronic scale with wireless transmission function |
| CN210036935U (en) * | 2019-07-22 | 2020-02-07 | 中山市吉宝衡器有限公司 | Self-generating body weight scale capable of measuring height |
| CN112914192A (en) * | 2021-04-02 | 2021-06-08 | 皇甫翌铭 | Weight shoes with detect plantar pressure |
| CN214854658U (en) * | 2021-04-02 | 2021-11-26 | 皇甫翌铭 | Weight shoes with detect plantar pressure |
| CN215414000U (en) * | 2021-06-11 | 2022-01-04 | 中山市亿莱电子有限公司 | Electronic scale with external self-generating device |
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Application publication date: 20220426 |
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