CN118392289B - Pit-free wagon balance - Google Patents
Pit-free wagon balance Download PDFInfo
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- CN118392289B CN118392289B CN202410837871.2A CN202410837871A CN118392289B CN 118392289 B CN118392289 B CN 118392289B CN 202410837871 A CN202410837871 A CN 202410837871A CN 118392289 B CN118392289 B CN 118392289B
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- wedge
- wagon balance
- pressure plate
- turntable
- assembly
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- 230000026683 transduction Effects 0.000 claims abstract description 23
- 238000010361 transduction Methods 0.000 claims abstract description 23
- 238000005259 measurement Methods 0.000 claims description 28
- 230000035939 shock Effects 0.000 claims description 11
- 238000013461 design Methods 0.000 claims description 7
- 238000007667 floating Methods 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 5
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000013016 damping Methods 0.000 abstract description 2
- 238000005303 weighing Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Measurement Of Force In General (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a foundation pit-free wagon balance, which comprises a wagon balance base, a ground platform, a damping stay bar and a wagon balance measuring assembly, wherein the wagon balance measuring assembly comprises a wedge surface transduction assembly and a measuring assembly, the wedge surface transduction assembly comprises a fixed seat, a bearing seat, a wedge surface turntable, a pressure plate, a supporting spring and two supporting rings, and the two supporting rings are respectively positioned on the upper surface and the lower surface of the fixed seat and are in sliding abutting connection with the surface of the bearing seat. According to the invention, by arranging the novel wedge surface transduction component structure, the gravity of a measured object is converted into the deflection acting force of the bearing seat and the deflection ring through the abutting connection between the wedge surface turntable and the pressure plate, and the plurality of strain gauges are linked to deform to send out an electric signal for measuring the mass of the heavy object, so that the tiny force change can be sensed more accurately, the weight measuring precision is improved, and the weight change can be captured better.
Description
Technical Field
The invention relates to the technical field of wagon balance, in particular to a foundation pit-free wagon balance.
Background
The wagon balance is an important device for weighing heavy objects such as vehicles, cargoes and the like, and is widely applied to the fields of logistics, transportation, industry, agriculture and the like. Conventional loaders are generally classified into a foundation pit-equipped loaders and a foundation pit-free loaders. The foundation pit wagon balance is required to excavate pit slots, the installation process is complex, the cost is high, and certain requirements are met for the ground environment. The foundation pit-free wagon balance is free from digging pits, is simple and convenient to install, but is thicker in general structure and larger in occupied space, application of the foundation pit-free wagon balance in certain scenes is limited, and the two ends of the foundation pit-free wagon balance are required to be provided with structures such as slopes so as to be convenient for weighing vehicle cargoes.
Foundation pit-free wagon balance is favored by more and more users because of the advantage of no need of digging foundation. However, the existing foundation pit-free wagon balance is generally and directly measured by adopting a strain gauge, has a thicker structure, and is required to be additionally arranged with various inclined platforms and other structures in certain special scenes to realize the loading weighing of vehicles and cargoes, and the surface of the wagon balance can be subjected to concentrated pressure in the measuring process, so that the non-uniform stress of the strain gauge can be caused, the measuring error is caused, and the defects in precision, response speed and durability exist. Strain gauges are susceptible to environmental factors, resulting in reduced measurement accuracy. In addition, concentrated pressure may cause uneven stress of the strain gauge, increasing measurement errors. The strain gauge has a slower response speed, is not suitable for real-time weighing requirements, is easily damaged by mechanical impact and vibration, and increases maintenance cost. .
In view of the above, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a foundation pit-free wagon balance, which solves the problems and improves the practical value.
Disclosure of Invention
The present invention aims to solve one of the technical problems existing in the prior art or related technologies.
The technical scheme adopted by the invention is as follows: the utility model provides a no foundation ditch wagon balance, includes wagon balance base, platform, shock attenuation vaulting pole and wagon balance measurement assembly, the wagon balance measurement assembly includes wedge face transduction subassembly and measurement assembly, wherein:
the wedge surface transduction assembly comprises a fixed seat, a bearing seat, a wedge surface turntable, a pressure plate, a supporting spring and two supporting rings, wherein the two supporting rings are respectively positioned on the upper surface and the lower surface of the fixed seat and are in sliding abutting joint with the surface of the bearing seat; the wedge surface turntable is fixed on the top surface of the rotary seat and is arranged opposite to the pressure plate, and the surfaces of the wedge surface turntable and the pressure plate are provided with a plurality of wedge surface blocks;
The measuring assembly comprises a positioning seat, a limiting ring, a deflection ring, a torsion seat and a strain gauge, wherein the three deflection seats are sequentially arranged in a stacked mode, the three corners of the deflection ring are respectively provided with a linkage pin connected with the three torsion seat angles, the two sides of the torsion seat are provided with elastic sheet lugs, the inner side of the limiting ring is provided with a fixed pin head fixedly connected with one end of the strain gauge, and the other end of the strain gauge is fixedly connected with the inner side of the torsion seat.
The present invention may be further configured in a preferred example to: the surface of wedge face carousel and pressure disk is provided with the wedge face piece, the wedge face piece produces the wedge face effect when wedge face carousel and pressure disk relative motion for produce the deflection effort between swivel mount and the deflection ring, thereby make the linkage strain gauge take place deformation and send out the electrical signal.
The present invention may be further configured in a preferred example to: the wedge surface transduction assembly and the measuring assembly are in modularized design, can be independently calibrated and replaced, and the quantity and arrangement modes of the wedge surface transduction assembly and the measuring assembly can be flexibly adjusted according to different weight measurement requirements.
The present invention may be further configured in a preferred example to: the top surface fixed mounting of bearing seat has the supporting spring that is located pressure disk axle center department, and supporting spring and pressure disk are all fixed in the floating support that the platform bottom surface was used for the platform.
The present invention may be further configured in a preferred example to: the pressure plate and the wedge surface turntable are relatively free of supporting acting force under the support of the supporting spring, and the surfaces of wedge surface blocks of the pressure plate and the wedge surface turntable are relatively attached.
The present invention may be further configured in a preferred example to: the torsion seat is of a v-shaped structure, the strain gauge is positioned on the bisector of the torsion seat angle, and the three torsion seats are mutually deflected for 60 degrees and then are connected in parallel and are arranged in a stacked manner at each angle.
The present invention may be further configured in a preferred example to: the measuring assembly is sleeved on the inner side of the transduction assembly, and the top surface of the deflection ring is fixedly connected with the bottom surface of the wedge surface turntable.
The present invention may be further configured in a preferred example to: the shock attenuation vaulting pole is located between wagon balance seat and the platform and evenly distributed in the four corners department of both and is used for the floating support of platform, the shock attenuation vaulting pole is silica gel cylinder structure.
The beneficial effects obtained by the invention are as follows:
1. According to the invention, by arranging the novel wedge surface transduction component structure, the gravity of a measured object is converted into the deflection acting force of the bearing seat and the deflection ring through the abutting connection between the wedge surface turntable and the pressure plate, and the plurality of strain gauges are linked to deform to send out an electric signal for measuring the mass of the heavy object, so that the tiny force change can be sensed more accurately, the weight measuring precision is improved, and the weight change can be captured better.
2. In the invention, the bearing seat, the wedge surface turntable and the pressure plate are used for supporting the stress, the relative arrangement of the disc structures and the design of the surface wedge surfaces are beneficial to dispersing the pressure, reducing the single-point pressure concentration, improving the stability and durability of the whole structure, avoiding the stress distortion of the strain gauge in the daily non-use stage, being beneficial to prolonging the service life of the wagon balance and reducing the damage caused by the local stress concentration.
3. According to the invention, the design of abutting the wedge surface turntable and the wedge surface block on the surface of the pressure plate can effectively reduce measurement errors caused by uneven load or deviation of the placement position of an object, a more reliable and accurate weight measurement result is provided, the modular wedge surface transduction assembly and the measurement assembly structure can be independently calibrated and replaced without large-scale adjustment of the whole system, and the quantity and arrangement modes of the wedge surface transduction assembly and the measurement assembly can be flexibly adjusted according to different weight measurement requirements, so that the weighing device is suitable for different application scenes and weighing ranges.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a wedge transducer assembly according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the mounting structure of a wedge transducer assembly and a measurement assembly according to one embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating an internal structure of a wedge transducer assembly according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of wedge turntable and platen construction according to one embodiment of the present invention;
FIG. 6 is a schematic diagram of an exploded view of a wedge transducer assembly according to one embodiment of the present invention;
FIG. 7 is an exploded view of a measurement assembly according to one embodiment of the present invention;
FIG. 8 is a schematic view of a shock strut mounting arrangement in accordance with one embodiment of the present invention.
Reference numerals:
100. A wagon balance base; 110. a base station; 120. damping stay bars;
200. A wedge face transduction assembly; 210. a fixing seat; 220. a swivel base; 230. wedge surface turntable; 240. a pressure plate; 250. a support spring; 211. a support ring; 231. wedge surface block;
300. A measurement assembly; 310. a positioning seat; 320. a limiting ring; 330. a deflection ring; 340. twisting the base; 350. a strain gauge; 321. a fixed pin head; 331. a linkage pin; 341. spring plate ear.
Detailed Description
The objects, technical solutions and advantages of the present invention will become more apparent by the following detailed description of the present invention with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present invention and features in the embodiments may be combined with each other.
It is to be understood that this description is merely exemplary in nature and is not intended to limit the scope of the present invention.
A foundation pit-free wagon balance according to some embodiments of the present invention is described below with reference to the accompanying drawings.
Referring to fig. 1 to 8, the foundation pit-free wagon balance according to the present invention includes a wagon balance stand 100, a platform 110, a shock absorber brace 120, and a wagon balance measuring assembly, wherein the wagon balance measuring assembly includes a wedge surface transducer assembly 200 and a measuring assembly 300, wherein:
The wedge surface transduction assembly 200 comprises a fixed seat 210, a bearing seat 220, a wedge surface turntable 230, a pressure plate 240, a supporting spring 250 and two supporting rings 211, wherein the two supporting rings 211 are respectively positioned on the upper surface and the lower surface of the fixed seat 210 and are in sliding abutting connection with the surface of the bearing seat 220; wedge surface turntable 230 is fixed on the top surface of bearing seat 220 and is arranged opposite to pressure plate 240, and the surfaces of wedge surface turntable 230 and pressure plate 240 are provided with a plurality of wedge surface blocks 231;
The measuring assembly 300 comprises a positioning seat 310, a limiting ring 320, a deflection ring 330, torsion seats 340 and strain gauges 350, wherein the torsion seats 340 are three in number and are sequentially arranged in a stacked mode, the triangles of the deflection ring 330 are respectively provided with a linkage pin 331 connected with the angles of the three torsion seats 340, the two sides of the torsion seats 340 are provided with elastic sheet lugs 341, the inner sides of the limiting ring 320 are provided with fixed pin heads 321 fixedly connected with one ends of the strain gauges 350, and the other ends of the strain gauges 350 are fixedly connected with the inner sides of the torsion seats 340.
In this embodiment, the surfaces of the wedge turntable 230 and the pressure plate 240 are provided with wedge blocks 231, and the wedge blocks 231 generate wedge action when the wedge turntable 230 and the pressure plate 240 move relatively, so that a deflection acting force is generated between the bearing seat 220 and the deflection ring 330, and the linkage strain gauge 350 is deformed and sends out an electric signal.
Specifically, the contact between the wedge turntable 230 and the pressure plate 240 is converted into a deflection force of the rotating base 220 and the deflection ring 330, and the strain gauges 350 are linked to deform to generate an electric signal, so that the mass of the weight is measured.
In this embodiment, the wedge transducer assembly 200 and the measurement assembly 300 are both of modular design, and can be independently calibrated and replaced, and the number and arrangement of the wedge transducer assembly 200 and the measurement assembly 300 can be flexibly adjusted according to different weight measurement requirements.
Specifically, the structure of the modularized wedge surface transduction assembly 200 and the structure of the measuring assembly 300 can be independently calibrated and replaced without large-scale adjustment of the whole system, and the number and arrangement modes of the wedge surface transduction assembly 200 and the measuring assembly 300 can be flexibly adjusted according to different weight measurement requirements, so that the modularized wedge surface transduction assembly is suitable for different application scenes and weighing ranges.
In this embodiment, the top surface of the bearing block 220 is fixedly provided with a supporting spring 250 at the axial center of the platen 240, and the supporting spring 250 and the platen 240 are fixed to the bottom surface of the base 110 for floating support of the base 110.
In this embodiment, the platen 240 and the wedge disk 230 are relatively free of supporting forces under the support of the support springs 250, and the surfaces of the wedge blocks 231 of the platen 240 and the wedge disk 230 are relatively in abutment.
Specifically, the lower wedge turntable 230 and the pressure plate 240 are supported by the support springs 250 without supporting force, so that single-point pressure concentration is reduced, stability and durability of the whole structure are improved, and stress torsion of the strain gauge 350 in a daily non-use stage is avoided.
In this embodiment, the torsion seat 340 has a v-shaped structure, and the strain gauges 350 are located on the angle bisectors of the torsion seat 340, and the three torsion seats 340 are parallel assembled after being deflected by 60 degrees, and the angles are stacked.
Specifically, the strain gauges 350 deform to send out an electrical signal to measure the mass of the weight, so that the micro force variation can be sensed more accurately, and the weight measurement accuracy is improved.
In this embodiment, the measuring assembly 300 is sleeved on the inner side of the transducer assembly 200, and the top surface of the deflection ring 330 is fixedly connected with the bottom surface of the wedge turntable 230.
In this embodiment, the shock absorbing braces 120 are located between the wagon balance stand 100 and the platform 110 and are uniformly distributed at four corners of the wagon balance stand 100 and the platform 110 for floating support of the platform 110, and the shock absorbing braces 120 have a silica gel column structure.
Specifically, the bearing seat 220, the wedge turntable 230 and the pressure plate 240 support stress, and the shock absorbing supporting rods 120 serve as main supporting structural members between the wagon balance seat 100 and the platform 110, so that the relative arrangement of the disc structures and the design of the surface wedge surfaces are beneficial to distributing pressure and reducing single-point pressure concentration.
The working principle and the using flow of the invention are as follows:
In use of the foundation pit-free wagon balance, the damper stay 120 supports the platform 110. The pressure plate 240 contacts with the wedge block 231 on the surface of the wedge turntable 230, and the wedge turntable 230 and the pressure plate 240 are relatively free from supporting acting force under the support of the supporting spring 250, so that single-point pressure concentration is reduced, the stability and durability of the whole structure are improved, the stress torsion of the strain gauge 350 in the daily non-use stage is avoided, and the service life of the wagon balance is prolonged.
The design of the abutting connection of the wedge surface turntable 230 and the wedge surface block 231 on the surface of the pressure plate 240 can effectively reduce measurement errors caused by uneven load or deviation of the placement position of an object, and provides more reliable and accurate weight measurement results. The structure of the modularized wedge surface transduction assembly 200 and the structure of the measuring assembly 300 can be independently calibrated and replaced, and the number and arrangement modes of the wedge surface transduction assembly 200 and the measuring assembly 300 can be flexibly adjusted according to different weight measurement requirements so as to adapt to different application scenes and weighing ranges.
When the surface of the wagon balance stand 100 is stressed and weighed, the wagon balance stand 100 presses the wedge surface of the wedge turntable 230 and the wedge surface of the wedge block 231 of the pressure plate 240 to be in opposite contact in the pressing motion. The wedge disk 230 and the bearing block 220 are deflected relative to the platen 240 by the opposing wedge action of the wedge blocks 231. The wedge turntable 230 synchronously links the deflection movement of the torsion seat 340 inside the measuring assembly 300 and the stop collar 320, thereby realizing the deflection deformation of the plurality of strain gauges 350. The multiple strain gauges 350 sense and measure the weight, the gravity of the measured object is converted into the deflection acting force of the bearing seat 220 and the deflection ring 330 through the abutting connection between the wedge surface turntable 230 and the pressure plate 240, and the multiple strain gauges 350 are linked to deform to send out an electric signal for measuring the weight mass, so that the tiny force change can be sensed more accurately.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (5)
1. The utility model provides a no foundation ditch wagon balance, its characterized in that includes wagon balance base (100), platform (110), shock attenuation vaulting pole (120) and wagon balance measurement module, its characterized in that: the wagon balance measurement assembly comprises a wedge surface transduction assembly (200) and a measurement assembly (300), wherein:
The wedge surface transduction assembly (200) comprises a fixed seat (210), a bearing seat (220), a wedge surface turntable (230), a pressure plate (240), a supporting spring (250) and two supporting rings (211), wherein the two supporting rings (211) are respectively positioned on the upper surface and the lower surface of the fixed seat (210) and are in sliding abutting connection with the surface of the bearing seat (220); the wedge surface turntable (230) is fixed on the top surface of the bearing seat (220) and is arranged opposite to the pressure plate (240), and the surfaces of the wedge surface turntable (230) and the pressure plate (240) are provided with a plurality of wedge surface blocks (231);
The measuring assembly (300) comprises a positioning seat (310), a limiting ring (320), a deflection ring (330), a torsion seat (340) and a strain gauge (350), wherein the number of the torsion seats (340) is three, the three torsion seats (340) are sequentially arranged in a stacked mode, the triangles of the deflection ring (330) are respectively provided with a linkage pin (331) connected with the angles of the three torsion seats (340), the two sides of the torsion seat (340) are provided with elastic sheet lugs (341), the inner side of the limiting ring (320) is provided with a fixed pin head (321) fixedly connected with one end of the strain gauge (350), the other end of the strain gauge (350) is fixedly connected with the inner side of the torsion seat (340), the torsion seat (340) is of a v-shaped structure, the strain gauge (350) is positioned on a torsion seat (340) angle horizontal split line, and the three torsion seats (340) are mutually deflected for 60 degrees and then are assembled in parallel and are arranged in a stacked mode at each angle.
The top surface of the bearing seat (220) is fixedly provided with a supporting spring (250) positioned at the axle center of the pressure plate (240), and the supporting spring (250) and the pressure plate (240) are both fixed on the bottom surface of the ground plate (110) for floating support of the ground plate (110);
the measuring assembly (300) is sleeved on the inner side of the transduction assembly (200), and the top surface of the deflection ring (330) is fixedly connected with the bottom surface of the wedge surface turntable (230).
2. The foundation pit-free wagon balance according to claim 1, wherein wedge blocks (231) are arranged on the surfaces of the wedge turntable (230) and the pressure plate (240), and the wedge blocks (231) generate wedge action when the wedge turntable (230) and the pressure plate (240) move relatively, so that deflection acting force is generated between the rotary bearing seat (220) and the deflection ring (330), and the linkage strain gauge (350) is deformed and sends out an electric signal.
3. The foundation pit-free wagon balance according to claim 1, wherein the wedge surface transduction assembly (200) and the measurement assembly (300) are of a modular design, and can be independently calibrated and replaced, and the number and arrangement modes of the wedge surface transduction assembly (200) and the measurement assembly (300) can be flexibly adjusted according to different weight measurement requirements.
4. The foundation pit-free wagon balance according to claim 1, wherein the pressure plate (240) and the wedge turntable (230) are relatively free from supporting force under the support of the supporting springs (250), and the surfaces of the wedge blocks (231) of the pressure plate (240) and the wedge turntable (230) are relatively fitted.
5. The foundation pit-free wagon balance according to claim 1, wherein the shock absorbing stay bars (120) are located between the wagon balance stand (100) and the platform (110) and are uniformly distributed at four corners of the wagon balance stand and the platform for floating support of the platform (110), and the shock absorbing stay bars (120) are of a silica gel column structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410837871.2A CN118392289B (en) | 2024-06-26 | 2024-06-26 | Pit-free wagon balance |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410837871.2A CN118392289B (en) | 2024-06-26 | 2024-06-26 | Pit-free wagon balance |
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| CN118392289A CN118392289A (en) | 2024-07-26 |
| CN118392289B true CN118392289B (en) | 2024-09-17 |
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| CN202410837871.2A Active CN118392289B (en) | 2024-06-26 | 2024-06-26 | Pit-free wagon balance |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111928928A (en) * | 2020-09-02 | 2020-11-13 | 衡阳市红彤彤农副产品有限公司 | Weighing wagon balance for agricultural and sideline products |
| CN111998926A (en) * | 2020-07-23 | 2020-11-27 | 南京恒测电子设备有限公司 | Loadometer weighing support structure and using method thereof |
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| US5708236A (en) * | 1995-06-28 | 1998-01-13 | Enlight Corporation | Weighing scale with cantilever beam for transmitting force to a strain gauge |
| US5894112A (en) * | 1997-06-26 | 1999-04-13 | Intercomp Company | Weighing scale apparatus |
| US9423289B2 (en) * | 2013-03-15 | 2016-08-23 | Illinois Tool Works Inc. | Load cell support structure for a weight scale |
| CN214667193U (en) * | 2021-05-13 | 2021-11-09 | 包头申大机械制造有限公司 | Protector is used to weighbridge |
| CN216012438U (en) * | 2021-10-12 | 2022-03-11 | 内蒙古路桥集团有限责任公司 | Intelligent checking equipment for material supply system |
| CN115371786A (en) * | 2022-08-05 | 2022-11-22 | 浙大城市学院 | Weighing device based on wisdom traffic |
| CN218628589U (en) * | 2022-09-29 | 2023-03-14 | 南宁大成测控科技有限公司 | Novel weighbridge with stabilizing mechanism |
| CN115931101B (en) * | 2022-12-05 | 2023-11-21 | 江苏艾德姆自动化科技有限公司 | Impact-resistant stable wagon balance |
| CN219935104U (en) * | 2023-05-18 | 2023-10-31 | 广东瑞莱斯精密电测技术有限公司 | Elastomer structure of electronic scale sensor |
| CN116708765A (en) * | 2023-06-06 | 2023-09-05 | 井冈山电器有限公司 | Digital television set top box interface component detection device |
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2024
- 2024-06-26 CN CN202410837871.2A patent/CN118392289B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998926A (en) * | 2020-07-23 | 2020-11-27 | 南京恒测电子设备有限公司 | Loadometer weighing support structure and using method thereof |
| CN111928928A (en) * | 2020-09-02 | 2020-11-13 | 衡阳市红彤彤农副产品有限公司 | Weighing wagon balance for agricultural and sideline products |
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