Force measuring table with visual leveling function

Abstract

The utility model discloses a force measuring table with a visual leveling function. The force measuring table comprises a top layer rack, a bottom layer rack, a supporting base, a fixing nut, a three-dimensional force sensor, a data transmitter, a data acquisition instrument, a data processor, a visual leveling device and an adjusting nut. Mounting grooves are formed in the two side walls of the top-layer rack, the two side walls of the top-layer rack are adjacent to each other, and a visual leveling device is arranged in each mounting groove; the visual leveling device comprises a gradienter fixing piece, a gradienter, scale marks and a spirit level. The visual leveling device is arranged in the Fx and Fy directions of the top layer rack, the adjustable supporting base is arranged on the bottom layer rack, leveling of the force measuring table is achieved through cooperation of the visual leveling device and the adjustable supporting base, and the force measuring table does not depend on the flatness of the ground, is more convenient to use and is suitable for more application scenes.

Description

Technical Field

[0001] The utility model relates to the field of force measuring platforms, in particular to a force measuring platform with a visual leveling function. Background Art

[0002] In the fields of sports research, mechanical engineering, and medical rehabilitation, it is often necessary to accurately know the force and torque information between the human body and the ground when the human body walks or moves, in order to obtain a scientific basis for sports research, sports training guidance, medical research, and rehabilitation training guidance for disabled bodies. The force platform is a detection device developed based on this demand.

[0003] The existing three-dimensional force platforms are mainly produced by Kister in Sweden and AMTI in the United States. The surface on which the force platform is placed must be concrete, cement, linoleum floor or hard floor. If the force platform is to be used for gait analysis, the force plate must be embedded in the floor. There is no leveling operation for the current force platform, which relies solely on the flatness of the ground. Therefore, there are great testing limitations and it cannot meet the experimental requirements. Utility Model Content

[0004] In view of the deficiencies in the prior art, the technical problem that the utility model intends to solve is to provide a force measuring platform with a visual leveling function.

[0005] The technical solution of the utility model to solve the technical problem is to provide a force measuring platform with a visual leveling function, characterized in that the force measuring platform includes a top frame, a bottom frame, a support base, a fixing nut, a three-dimensional force sensor, a data transmission device, a data acquisition instrument, a data processor, a visual leveling device and an adjustment nut;

[0006] The screw parts of several support bases pass through the bottom stage and are slidably installed in the bottom stage; a fixing nut and an adjusting nut are threadedly installed on each support base, the fixing nut is located on the table top of the bottom stage, and the adjusting nut is located on the bottom surface of the bottom stage, and the fixing and leveling of the support base are achieved by adjusting the fixing nut and the adjusting nut; the three-dimensional force sensor, the data transmitter, the data processor and the data acquisition instrument are all fixed on the table top of the bottom stage; the top stage and the bottom stage are connected by studs to form a whole; the top surface and the bottom surface of the three-dimensional force sensor are in contact with the bottom surface of the top stage and the table top of the bottom stage respectively to achieve force measurement;

[0007] Mounting grooves are provided on both side walls of the top-level platform and the two side walls are adjacent to each other, and a visual leveling device is provided in each mounting groove; the visual leveling device includes a spirit level fixture, a spirit level, scale lines and a level; the spirit level fixture is fixed on the top-level platform; the spirit level is fixed on the spirit level fixture; scale lines are provided on the outer surface of the spirit level, and a level is provided inside the spirit level, and the horizontal or vertical inclination state of the force measuring platform is judged by the position state of the level at the scale lines.

[0008] Compared with the prior art, the beneficial effect of the utility model is that a visual leveling device is provided on the Fx and Fy directions of the top frame of the utility model, and an adjustable supporting base is provided on the bottom frame. The leveling of the force platform is achieved through the cooperation of the two, which does not depend on the flatness of the ground, is more convenient to use, and is suitable for more application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0010] Figure 2 This is a schematic diagram of the installation of the table top of the bottom shelf of the utility model;

[0011] Figure 3 This is a schematic diagram of the installation of the bottom surface of the bottom shelf of the utility model;

[0012] Figure 4 It is a right side schematic diagram of the overall structure of the utility model;

[0013] Figure 5 For this utility model Figure 4 An enlarged schematic diagram of part A;

[0014] Figure 6 It is a top view schematic diagram of the visual leveling device of the present invention.

[0015] In the figure, the top stage 1, the bottom stage 2, the supporting base 3, the fixing nut 4, the three-dimensional force sensor 5, the data transmitter 6, the data acquisition instrument 7, the data processor 8, the level fixing part 9, the level 10, the scale line 11, the level 12, the countersunk screw hole 13, and the adjusting nut 14. DETAILED DESCRIPTION

[0016] The specific embodiments of the present invention are given below. The specific embodiments are only used to further illustrate the present invention in detail and do not limit the protection scope of the claims of the present invention.

[0017] The utility model provides a force measuring platform with a visual leveling function (abbreviated as force measuring platform), characterized in that the force measuring platform comprises a top frame 1, a bottom frame 2, a support base 3, a fixing nut 4, a three-dimensional force sensor 5, a data transmitter 6, a data acquisition instrument 7, a data processor 8, a visual leveling device and an adjusting nut 14;

[0018] The screw parts of several support bases 3 pass through the bottom stage 2 and are slidably installed in the bottom stage 2; a fixing nut 4 and an adjusting nut 14 are threadedly installed on each support base 3, the fixing nut 4 is located on the table top of the bottom stage 2, and the adjusting nut 14 is located on the bottom surface of the bottom stage 2, and the fixing and leveling of the support base 3 are achieved by adjusting the fixing nut 4 and the adjusting nut 14; the three-dimensional force sensor 5, the data transmitter 6, the data processor 8 and the data acquisition instrument 7 are all fixed on the table top of the bottom stage 2; the top stage 1 and the bottom stage 2 are connected by studs to form a whole; the top surface and the bottom surface of the three-dimensional force sensor 5 are in contact with the bottom surface of the top stage 1 and the table top of the bottom stage 2 respectively to achieve force measurement;

[0019] Mounting grooves are provided on both side walls of the top platform 1 and the two side walls are adjacent (i.e., in the Fx and Fy directions), and a visual leveling device is provided in each mounting groove; the visual leveling device includes a spirit level fixture 9, a spirit level 10, scale lines 11 and a leveling instrument 12; the spirit level fixture 9 is fixed to the top platform 1 through countersunk screw holes 13 and countersunk screws thereon; the spirit level 10 is fixed to the spirit level fixture 9 through glass glue; scale lines 11 are provided on the outer surface of the spirit level 10, and a leveling instrument 12 is provided inside the spirit level 10, and the horizontal or vertical inclination state of the force measuring platform is judged by the position state of the leveling instrument 12 at the scale lines 11.

[0020] Preferably, the screw rod parts of the four supporting bases 3 pass through the bottom frame 2 and are slidably installed at the four corners of the bottom frame 2 .

[0021] Preferably, four three-dimensional force sensors 5 are distributed at four corners of the table top of the bottom platform 2 .

[0022] Preferably, the three-dimensional force sensor 5 is connected to the data acquisition device 7 via a data line, and the mechanical data collected by the three-dimensional force sensor 5 is sent to the data acquisition device 7; the data acquisition device 7 is connected to the data transmitter 6 via a data line to complete the data transmission; the data transmitter 6 is connected to the data processor 8 via a data line to process the mechanical data in the data processor 8; the data processor 8 is connected to an external PC or other instrument for analysis and display.

[0023] Preferably, the three-dimensional force sensor 5 adopts a double-beam structure.

[0024] Preferably, the level fixture 9 is a metal bar level fixture.

[0025] The working principle and workflow of the utility model are:

[0026] When using a force measuring platform, first place the force measuring platform on the test plane; when the bubble in the leveler 12 always moves to the highest side of the leveler 10 due to the effect of gravity, the support base 3 is leveled by adjusting the fixing nut 4 and the adjusting nut 14 or installing a gasket at the bottom of the support base 3, so that the bubble in the leveler 12 is exactly located in the middle position (i.e., horizontal position) of the leveler 10. At this time, the force measuring platform is in a horizontal position and the leveling is completed; then the test is started, the person being tested walks or moves on the force measuring platform, and the three-dimensional force sensor 5 obtains the mechanical information of the person being tested, which is transmitted to an external computer via a data acquisition instrument 7, a data transmitter 6, and a data processor 8, and obtains three-dimensional force information (i.e., the component forces and resultant forces in the horizontal, vertical and longitudinal directions), a pressure spectrum, a maximum pressure and other dynamic and static indicators, and displays and stores them in real time with graphics and text for analysis by scientific researchers and coaches, thereby providing a data analysis template and a parameter indicator system for application research based on the force measuring platform.

[0027] Anything not described in the present invention is applicable to the prior art.

Claims

1. A force measuring platform with a visual leveling function, characterized in that: The force measuring platform comprises a top frame (1), a bottom frame (2), a supporting base (3), a fixing nut (4), a three-dimensional force sensor (5), a data transmitter (6), a data acquisition device (7), a data processor (8), a visual leveling device and an adjusting nut (14); The screw rod parts of several support bases (3) pass through the bottom platform (2) and are slidably installed in the bottom platform (2); each support base (3) is threadedly installed with a fixing nut (4) and an adjusting nut (14); the fixing nut (4) is located on the table surface of the bottom platform (2), and the adjusting nut (14) is located on the bottom surface of the bottom platform (2); the fixing and leveling of the support base (3) are achieved by adjusting the fixing nut (4) and the adjusting nut (14); the three-dimensional force sensor (5), the data transmitter (6), the data processor (8) and the data acquisition instrument (7) are all fixed on the table surface of the bottom platform (2); the top platform (1) and the bottom platform (2) are connected by studs to form a whole; the top surface and the bottom surface of the three-dimensional force sensor (5) are respectively in contact with the bottom surface of the top platform (1) and the table surface of the bottom platform (2) to achieve force measurement; The top platform (1) is provided with mounting grooves on both side walls and the two side walls are adjacent to each other, and a visual leveling device is provided in each mounting groove; the visual leveling device comprises a level fixture (9), a level (10), a scale line (11) and a level (12); the level fixture (9) is fixed on the top platform (1); the level (10) is fixed on the level fixture (9); the scale line (11) is provided on the outer surface of the level (10), and the level (12) is provided inside the level (10); the horizontal or vertical tilt state of the force measuring platform is judged by the position state of the level (12) at the scale line (11).

2. The force platform with visual leveling function according to claim 1, characterized in that: The screw rod parts of the four supporting bases (3) pass through the bottom frame (2) and are slidably installed at the four corners of the bottom frame (2).

3. The force platform with visual leveling function according to claim 1, characterized in that: Four three-dimensional force sensors (5) are distributed at the four corners of the table top of the bottom table frame (2).

4. The force measuring platform with visual leveling function according to claim 1, characterized in that: The three-dimensional force sensor (5) is connected to the data acquisition device (7); the data acquisition device (7) is connected to the data transmission device (6); the data transmission device (6) is connected to the data processor (8); and the data processor (8) is connected to an external PC.

5. The force platform with visual leveling function according to claim 1, characterized in that: The three-dimensional force sensor (5) adopts a double-beam structure.

6. The force platform with visual leveling function according to claim 1, characterized in that: The level fixture (9) is a metal strip level fixture.

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