CN218960750U - Portable and fixed dual-purpose serial multi-component double-plate force table - Google Patents
Portable and fixed dual-purpose serial multi-component double-plate force table Download PDFInfo
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- CN218960750U CN218960750U CN202222630725.1U CN202222630725U CN218960750U CN 218960750 U CN218960750 U CN 218960750U CN 202222630725 U CN202222630725 U CN 202222630725U CN 218960750 U CN218960750 U CN 218960750U
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Abstract
The utility model discloses a portable and fixed dual-purpose serial multi-component double-plate force table, which comprises a main table and an auxiliary table which are horizontally arranged, wherein the shells of the main table and the auxiliary table respectively comprise a bottom plate and a top plate, and the top plate is fixedly arranged above the bottom plate through bolts; further comprises: the control board is fixedly arranged on the lower surface of the bottom plate through bolts, a data acquisition card and a rechargeable battery are arranged in the control board, and a power interface and a gateway are fixedly arranged on the side wall of the control board; the mounting holes are formed in four corners of the bottom plate, six-dimensional force sensors penetrate through the inner sides of the mounting holes, and the base is mounted on the lower end screw of each six-dimensional force sensor. This portable and fixed dual-purpose series connection multicomponent two-plate force platform can carry out convenient installation and regulation, and then can use different use installation environment, adopts two plate-type dynamometry modes simultaneously, can gather the resultant force of obtaining two side legs at human motion research process, and the practicality is strong.
Description
Technical Field
The utility model relates to the technical field of force measuring tables, in particular to a portable and fixed dual-purpose serial multi-component double-plate force table.
Background
The force measuring table is a measuring tool for detecting force action data, is widely applied to the fields of sports research, athletic performance, rehabilitation and medical treatment, physical training and athlete material selection, and mainly relates to a multi-component force sensor technology, a strain test signal processing technology, a double-plate connection technology and the like, but the existing force measuring table still has some defects.
The existing similar product structure is approximately composed of the following modules: force sensor, signal amplifier, wave filter and data acquisition card.
The basic principle of operation of a structural sensor is based on the mechanical displacement of a component. The main categories are: resistance strain type, potentiometer type, capacitive type, inductive type, transformer type, eddy current type, electric type, resonant type, etc. sensors. The structural sensor is an early industrial sensor, and has the defects of large volume, more consumables, low speed and the like, but has wide application prospect due to mature, firm and reliable process and low price.
The resistance strain sensor is a sensor which uses the resistance strain effect of metal, namely that the resistance value of the resistance strain sensor changes when the metal wire is mechanically deformed under the action of external force, and converts the resistance strain effect into electric quantity output. The resistance strain sensor has simple structure, stable performance, higher sensitivity, good cost performance and strong anti-interference capability, and can be widely applied in the fields of mechanical quantity and geometric quantity measurement. Among the load cells of different working principles, the resistance strain sensor is widely applied in the technical field of mechanical measurement by virtue of the superior cost performance and anti-interference capability, and becomes the main stream for developing force measurement and weighing.
Since the full-load sensitivity output of the force sensor is generally about a few millivolts, the signal is weak, so that the resolution is improved by amplifying, and the voltage range of the amplified signal is matched with the input voltage range of the A/D converter. In addition, a low-pass filter is required to be designed to filter out high-frequency noise in the signal.
The whole duration of the transient impact force is very short, and is characterized by a sudden force rise, a sharp peak, and a rapid fall back. A computer acquisition system is used for capturing impact force signals, and if the start and the end of acquisition are manually controlled, a large amount of invalid data can be acquired on the one hand, so that system resources are occupied, and a subsequent processing link of the signals is added. For this purpose, the current force station architecture selects a data acquisition card to eliminate the impact of this process. There are two types of trigger modes of the acquisition card: internal triggering (the acquisition is started immediately after the acquisition card is started) and external triggering (the data acquisition is started after the acquisition card is started and the external hardware trigger source signal meets the specified condition);
however, the existing multi-component force measuring table has larger mass, and can not be impacted by larger collision and local high pressure because of being a precise instrument, so that certain hidden danger is brought to the transportation, the installation and the test of equipment. The existing multi-component force measuring tables are required to be fixedly installed and used, and the use environments are not flexible and various. The existing multi-component force measuring bench is complex in connecting line. A connecting cable is matched with a force measuring table, data are transmitted to a data acquisition box and then connected with a computer end, a test space is limited due to complex and long connecting lines, safety of test experiments is usually considered when the cable is connected, most of existing six-dimensional force measuring tables are designed in a single board mode, and in actual research on human body movement, resultant force of two side legs can only be obtained; the component force condition of each side leg in the human body movement process cannot be explored.
So we propose a portable and fixed dual-purpose serial multi-component dual-plate force table to solve the above mentioned problems.
Disclosure of Invention
The utility model aims to provide a portable and fixed dual-purpose serial multi-component double-plate force table, which solves the problems that the force measuring table in the current market provided by the background technology is inconvenient to adapt to different installation and use environments, and meanwhile, most of force measuring tables are designed by single plates, so that in the practical research on human body movement, only resultant force of two side legs can be obtained, and component force conditions of each side leg in the human body movement process cannot be explored.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the portable and fixed dual-purpose serial multi-component double-plate force table comprises a main table and an auxiliary table which are horizontally arranged, wherein the shells of the main table and the auxiliary table respectively comprise a bottom plate and a top plate, and the top plate is fixedly arranged above the bottom plate through bolts;
further comprises:
the control board is fixedly arranged on the lower surface of the bottom plate through bolts, a data acquisition card and a rechargeable battery are arranged in the control board, and a power interface and a gateway are fixedly arranged on the side wall of the control board;
the mounting holes are formed in four corners of the bottom plate, six-dimensional force sensors penetrate through the inner sides of the mounting holes, and the base is mounted on the lower end screw of each six-dimensional force sensor.
Preferably, the main platform and the auxiliary platform have the same structure, the gap between the main platform and the auxiliary platform is 4mm, the upper surfaces of the main platform and the auxiliary platform are at the same horizontal height, and the main platform and the auxiliary platform are in communication connection through a communication cable.
Through adopting above-mentioned technical scheme for both main and auxiliary tables can carry out convenient installation and connection, and then convenient transportation has enlarged availability factor and application range.
Preferably, the inner side of the top plate is integrally provided with reinforcing ribs, and the reinforcing ribs divide the inner side space of the top plate into independent spaces which are uniformly distributed.
Through adopting above-mentioned technical scheme for the strengthening rib can carry out stable support to the roof, effectively improves the holding strength of roof stress surface, avoids roof stress surface to take place deformation and influences measurement accuracy.
Preferably, the lower surface of the top plate is symmetrically and fixedly provided with four support columns, the support columns are arranged in an inverted truncated cone-shaped structure, and the lower surface position of the support columns is lower than the lower surface position of the control panel.
Through adopting above-mentioned technical scheme for the support column can prescribe a limit to the position height of control panel, avoids control panel height too low and knows inside electrical component pressurized damage, has improved the safety in utilization of device.
Preferably, the upper end of the six-dimensional force sensor penetrates through the mounting hole, the upper end of the six-dimensional force sensor is in clearance fit with the mounting hole, and a screw is fixedly mounted on the side wall of the upper end of the six-dimensional force sensor.
Through adopting above-mentioned technical scheme for the bottom plate can carry out stable support and spacing to a plurality of six-dimensional force sensor, thereby ensures six-dimensional force sensor's measurement accuracy.
Preferably, the lower extreme of six-dimensional force transducer is cylindrical structure setting, just six-dimensional force transducer's lower extreme and the cell body clearance fit of base upper surface, and the base passes through screw and six-dimensional force transducer's lower extreme fixed connection.
Through adopting above-mentioned technical scheme, through rotatory screw, can adjust the distance between base and the six-dimensional force sensor to realize the leveling to the bottom plate, ensure that host table, auxiliary table can keep the horizontality, and then be suitable for different topography of using.
Compared with the prior art, the utility model has the beneficial effects that: the portable and fixed dual-purpose serial multi-component double-plate force table can be conveniently installed and adjusted, further different use and installation environments can be used, meanwhile, a double-plate type force measuring mode is adopted, resultant force of two sides of legs can be obtained in a summarizing mode in the human body movement research process, and the portable and fixed dual-purpose serial multi-component double-plate force table is high in practicability and specific contents are as follows;
1. the six-dimensional dynamic data of the left and right legs of the human body can be obtained, and the symmetry and balance of the left and right sides of the human body under different action modes can be studied and analyzed;
2. be provided with host computer, auxiliary table and base, adopt split type host computer, auxiliary table, can be convenient for install and accomodate, highly adjustable's base simultaneously can carry out the level adjustment to host computer, auxiliary table, ensures the dynamometry precision of host computer, auxiliary table, can make the device be suitable for the use of difference simultaneously and install the topography, has effectively enlarged the application scope of device.
Drawings
FIG. 1 is a schematic view of a double-plate three-dimensional structure of the present utility model;
FIG. 2 is a schematic diagram of a single panel explosion of the present utility model;
FIG. 3 is a schematic diagram of a communication cable connection structure according to the present utility model;
FIG. 4 is a schematic view of an inverted single board three-dimensional structure according to the present utility model;
FIG. 5 is a schematic view of a top plate in a three-dimensional configuration according to the present utility model;
FIG. 6 is a schematic diagram of a split three-dimensional structure of a six-dimensional force sensor and a base of the present utility model;
in the figure: 1. a main stage; 2. an auxiliary station; 3. a bottom plate; 4. a top plate; 401. reinforcing ribs; 5. a control board; 6. a data acquisition card; 7. a rechargeable battery; 8. a power interface; 9. a gateway; 10. a communication cable; 11. a support column; 12. a mounting hole; 13. a six-dimensional force sensor; 14. and (5) a base.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-6, the present utility model provides a technical solution: the portable and fixed dual-purpose serial multi-component double-plate force table comprises a main table 1 and an auxiliary table 2 which are horizontally arranged, wherein the shells of the main table 1 and the auxiliary table 2 respectively comprise a bottom plate 3 and a top plate 4, and the top plate 4 is fixedly arranged above the bottom plate 3 through bolts;
further comprises: the control board 5 is fixedly arranged on the lower surface of the bottom plate 3 through bolts, a data acquisition card 6 and a rechargeable battery 7 are arranged in the control board 5, and a power interface 8 and a gateway 9 are fixedly arranged on the side wall of the control board 5;
the main platform 1 and the auxiliary platform 2 are identical in structure, the gap between the main platform 1 and the auxiliary platform 2 is 4mm, the upper surfaces of the main platform 1 and the auxiliary platform 2 are at the same horizontal height, and meanwhile, the main platform 1 and the auxiliary platform 2 are in communication connection through a communication cable 10. The inside integration of roof 4 is provided with strengthening rib 401, and strengthening rib 401 separates into evenly distributed's independent space with the inboard space of roof 4, as shown in fig. 1-3, when need carry out the dynamometry, with main part 1, vice platform 2 are close to each other, make the adjacent base 14 of two to laminate mutually, make the clearance between two main part 1, vice platform 2 be 4mm, then carry out signal connection with main part 1, vice platform 2 through communication cable 10, then be connected with the computer through the net twine with the gateway 9 of main part 1, vice platform 2 can acquire the six-dimensional dynamics data of human left and right sides leg this moment, and study and analysis are carried out to the symmetry of the left and right sides of human body under different action modes, rechargeable battery 7 can make equipment carry out the open air or test under the no power condition.
The mounting holes 12 are formed in four corners of the bottom plate 3, six-dimensional force sensors 13 penetrate through the inner sides of the mounting holes 12, and bases 14 are mounted on lower end screws of the six-dimensional force sensors 13. Four support columns 11 are symmetrically and fixedly arranged on the lower surface of the top plate 4, the support columns 11 are arranged in an inverted truncated cone-shaped structure, and the height of the lower surface of the support columns 11 is lower than that of the lower surface of the control plate 5. The upper end of the six-dimensional force sensor 13 penetrates through the mounting hole 12, the upper end of the six-dimensional force sensor 13 is in clearance fit with the mounting hole 12, and a screw is fixedly arranged on the side wall of the upper end of the six-dimensional force sensor 13. The lower extreme of six-dimensional force sensor 13 is cylindrical structure setting, and the cell body clearance fit of the lower extreme of six-dimensional force sensor 13 and base 14 upper surface to base 14 passes through screw and the lower extreme fixed connection of six-dimensional force sensor 13, as shown in fig. 2-6, can carry out accurate measurement to the atress condition of host computer 1, auxiliary table 2 through six-dimensional force sensor 13, and through adjusting the height of base 14, can realize the levelness regulation to host computer 1, auxiliary table 2 for host computer 1, auxiliary table 2 can install in different topography, effectively enlarged the application scope and the availability factor of device.
Working principle: when the portable and fixed dual-purpose serial multi-component double-plate force platform is used, firstly, as shown in fig. 1-6, a main platform 1 and an auxiliary platform 2 are spliced and are connected by using a communication cable 10, then the main platform 1 is connected with a computer through a network cable, when the main platform 1 and the auxiliary platform 2 are stressed, a six-dimensional force sensor 13 respectively receives excitation signals, and then outputs response signals to enter a high-precision data acquisition card 6 through signal adjustment. Before data acquisition, the program initializes the data acquisition card 6, and buffering on the card and in the memory is an intermediate link of data acquisition and storage, and buffering in the PC memory is used for temporarily storing data. For example, it is difficult to collect thousands of data per second and display or pattern all the data in one second, and the data of the data acquisition card 6 can be sent to a buffer first, the data can be stored quickly, and the data can be retrieved later for display or analysis.
The signals from the six-dimensional force sensor 13 are conditioned to enter the data acquisition device, and the signal conditioning includes amplification, isolation, filtering, excitation, linearization, and the like. The data after signal conditioning is input into the data acquisition card 6, and the data acquisition card 6 mainly aims to acquire the data after signal conditioning and output the acquired data. Since the data output by the data acquisition card 6 is the original code, the data needs to be converted into the output voltage value of the six-dimensional force sensor 13 through a series of operations. After the original data of the signals are obtained, the software end analyzes and processes the signal data and converts the signal data into original force values.
Algorithm and principle:
the single six-dimensional force sensor 13 directly obtains three force values of X/Y/Z
Calculating force value output of the flat plate:
tablet output algorithm:
there are a total of 4 six-dimensional force sensors 13, and each six-dimensional force sensor 13 has XYZ three force value results.
Flat fx=x1+x2+x3+x4
Flat plate fy=y1+y2+y3+y4
Flat fz=z1+z2+z3+z4
Plate mx= (z1+z4-Z3-Z2) Dy
Plate my= (z4+z3-Z2-Z1) Dx
Plate mz= (x1+x4-x2-X3) dy+ (y3+y4-Y1-Y2) Dx
(reference distance dx=0.22/2=0.11 m dy=0.12/2=0.06 m, which requires modification)
In the measuring process, the voltage signals of the four sensors are collected and multiplied by the obtained coefficient after the calibration of the sensors, so that the force and the moment of the six-component force measuring platform stressed object can be output, and a series of works are completed.
What is not described in detail in this specification is prior art known to those skilled in the art.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (5)
1. The portable and fixed dual-purpose serial multi-component double-plate force table comprises a main table (1) and an auxiliary table (2) which are horizontally arranged, wherein the shells of the main table (1) and the auxiliary table (2) respectively comprise a bottom plate (3) and a top plate (4), and the top plate (4) is fixedly arranged above the bottom plate (3) through bolts;
characterized by further comprising:
the control board (5) is fixedly arranged on the lower surface of the bottom board (3) through bolts, a data acquisition card (6) and a rechargeable battery (7) are arranged in the control board (5), and a power interface (8) and a gateway (9) are fixedly arranged on the side wall of the control board (5);
the mounting holes (12) are formed in four corners of the bottom plate (3), six-dimensional force sensors (13) penetrate through the inner sides of the mounting holes (12), and bases (14) are mounted at the lower end screws of the six-dimensional force sensors (13);
the structure of the main platform (1) and the structure of the auxiliary platform (2) are the same, the gap between the main platform (1) and the auxiliary platform (2) is 4mm, the upper surfaces of the main platform (1) and the auxiliary platform (2) are at the same horizontal height, and meanwhile, the main platform (1) and the auxiliary platform (2) are in communication connection through a communication cable (10).
2. A portable and stationary dual-purpose tandem multi-component dual-plate force station as defined in claim 1, wherein: the inner side of the top plate (4) is integrally provided with reinforcing ribs (401), and the reinforcing ribs (401) divide the inner side space of the top plate (4) into independent spaces which are uniformly distributed.
3. A portable and stationary dual-purpose tandem multi-component dual-plate force station as defined in claim 1, wherein: four support columns (11) are symmetrically and fixedly arranged on the lower surface of the top plate (4), the support columns (11) are arranged in an inverted truncated cone-shaped structure, and the height of the lower surface position of each support column (11) is lower than that of the lower surface position of the control plate (5).
4. A portable and stationary dual-purpose tandem multi-component dual-plate force station as defined in claim 1, wherein: the upper end of the six-dimensional force sensor (13) penetrates through the mounting hole (12), the upper end of the six-dimensional force sensor (13) is in clearance fit with the mounting hole (12), and a screw is fixedly arranged on the side wall of the upper end of the six-dimensional force sensor (13).
5. A portable and stationary dual-purpose tandem multi-component dual-plate force station as defined in claim 1, wherein: the lower extreme of six-dimensional force transducer (13) is cylindrical structure setting, just the lower extreme of six-dimensional force transducer (13) and the cell body clearance fit of base (14) upper surface, and base (14) pass through screw and the lower extreme fixed connection of six-dimensional force transducer (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222630725.1U CN218960750U (en) | 2022-10-08 | 2022-10-08 | Portable and fixed dual-purpose serial multi-component double-plate force table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222630725.1U CN218960750U (en) | 2022-10-08 | 2022-10-08 | Portable and fixed dual-purpose serial multi-component double-plate force table |
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| Publication Number | Publication Date |
|---|---|
| CN218960750U true CN218960750U (en) | 2023-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222630725.1U Active CN218960750U (en) | 2022-10-08 | 2022-10-08 | Portable and fixed dual-purpose serial multi-component double-plate force table |
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| CN (1) | CN218960750U (en) |
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- 2022-10-08 CN CN202222630725.1U patent/CN218960750U/en active Active
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Address after: 201199, 1st Floor, Building 6, No. 1189 Qishen Road, Minhang District, Shanghai Patentee after: Kunwei Sports Technology (Shanghai) Co.,Ltd. Country or region after: China Address before: 201100 Room 306, Building 1, No. 3888 Humin Road, Minhang District, Shanghai Patentee before: Kunwei Yancheng Technology (Shanghai) Co.,Ltd. Country or region before: China |