Torsional moment measuring device suitable for feet

Abstract

The invention provides a torsional moment measuring device suitable for a foot, and the device comprises a pedestal which is provided with a first fixed plate at one end in the length direction of the pedestal; the angle adjusting device is arranged at the end, facing the base, of the first fixing plate and located above the base. One end of the rotating shaft is rotatably connected with the rotatable tray, and the other end of the rotating shaft is provided with a torque sensor; the supporting plate is arranged at one end, opposite to the first fixing plate, of the torque sensor, and a bandage is arranged on the supporting plate; the lifting platform is arranged at the top end of the base and located at the other end of the base in the length direction; the instrument display is arranged at the top end of the first fixing plate; and the control module is used for receiving the angle change value and the torsional moment output by the torque sensor in real time, processing the angle change value and the torsional moment to obtain a time-angle-torsional moment change curve, and transmitting the time-angle-torsional moment change curve to an instrument display for visual display. The torsion moment measuring device has the advantages of being simple in structure, convenient to operate, multifunctional and high in measuring precision.

Description

Technical Field

[0001] The present invention relates to the technical field of torsion torque measuring instruments, and in particular to a torsion torque measuring device suitable for a foot. Background Art

[0002] In the field of sports medicine and biomechanics, the measurement of torsional torque of the foot is a key technology that can help researchers and medical personnel gain an in-depth understanding of the biomechanical characteristics of the foot during human movement. Currently, the commonly used measurement methods mainly rely on optical motion capture systems and strain gauge-based torsional stiffness measurement devices. Although these technologies can provide measurement data of foot torsional torque to a certain extent, they are often limited in their widespread application in clinical and research due to high equipment costs, complex operating procedures, and high technical requirements for operators. In addition, these methods may be interfered with by environmental factors in actual applications, affecting the accuracy and reliability of the measurement results.

[0003] The limitations of existing measurement technologies mainly lie in the complexity of their operation, insufficient measurement accuracy, and difficulty in measuring foot torsion torque in real sports scenarios. For example, the optical motion capture system requires the placement of multiple marker points on the subject and the capture of the movement of these points by multiple high-speed cameras to calculate the dynamic data of the foot movement. This not only increases the complexity of the process, but also is costly. Although ordinary pressure sensors and strain gauges can provide certain measurement data, their measurement range and accuracy are often difficult to meet high-precision requirements, and they cannot simulate foot movement changes in real sports scenarios, especially under dynamic conditions. In addition, existing technologies also have certain limitations in data processing and analysis, requiring professionals to perform complex data processing, which undoubtedly increases the difficulty of research and clinical applications.

[0004] In view of the limitations of existing technologies, the market and academia are in urgent need of a new type of foot torsion torque measurement device, which should have the characteristics of simple structure, convenient operation, versatility and high measurement accuracy. This instrument should be able to adapt to different measurement environments and conditions and provide stable and reliable data. At the same time, it should also be easy to carry and operate, so that researchers and medical professionals can quickly perform measurements in various occasions. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a torsion torque measuring device with simple structure, convenient operation, versatility and high measurement accuracy. In order to overcome the defects of the above-mentioned prior art (or related technology), the present invention provides a torsion torque measuring device suitable for the foot.

[0006] The present invention provides a torsion torque measuring device suitable for a foot, comprising: A base, wherein a first fixing plate is provided at one end of the base along its length direction, and the horizontal height of the top of the first fixing plate is greater than the horizontal height of the top of the base; an angle adjustment device, provided at one end of the first fixing plate facing the base and located above the base, and one end of the angle adjustment device facing away from the first fixing plate is a rotatable tray; a rotating shaft, one end of which is rotatably connected to the rotatable tray, and the other end of which is provided with a torque sensor, the torque sensor being used to detect the angle change value and the torsional torque of the rotating shaft in real time and output them; A support plate, disposed at one end of the torque sensor facing away from the first fixing plate, the support plate being provided with a strap for fixing the front end of the user's foot; A lifting platform is provided at the top of the base and at the other end of the base along its own length direction to support the rear end of the user's foot; an instrument display, disposed on the top of the first fixing plate and with a display end of the instrument display facing the lifting platform; A control module is connected to the torque sensor and the instrument display, respectively, for receiving the angle change value and the torsional torque output by the torque sensor in real time, and processing the angle change value and the torsional torque to obtain a time-angle-torque change curve, and transmitting it to the instrument display for visual display.

[0007] Compared with the prior art, the torsion torque measuring device for the foot of the present invention has the following advantages: (1) High measurement accuracy: In this application, a precision torque sensor is set between the rotating shaft and the support plate, and high-precision foot torsion torque measurement data is measured in real time as the rotating shaft rotates as the user's foot rotates, thereby ensuring the reliability of the measurement results; (2) Versatility: In this application, the angle adjustment device and the lifting platform are used to measure foot torque under different foot postures, better simulate real sports scenes, and the adjustment range can cover all possible foot postures during running. (3) Convenient operation: In this application, the user only needs to fix the foot on the support plate to start the measurement, and the measurement data will be displayed in real time on the instrument display, allowing the user to adaptively adjust the foot posture according to the measurement data; (4) Simple structure: This application does not require the use of large measuring instruments or complex structures. The foot is fixed by a support plate and a strap, the foot is supported by a lifting platform, data measurement is achieved by a rotating shaft and a torque sensor, and data visualization is achieved by an instrument display, which is very convenient.

[0008] In a possible embodiment, the angle adjustment device includes a second fixed plate, two semicircular plates, a U-shaped plate and the rotatable tray, the second fixed plate is arranged at one end of the first fixed plate facing the base, the two semicircular plates are symmetrically arranged at one end of the second fixed plate facing the lifting platform and are perpendicular to the second fixed plate, the two semicircular plates are each provided with a plurality of first fixing holes arranged in a circular array along the semicircular arc edge, and the first fixing holes on the two semicircular plates are symmetrically arranged, at least one second fixing hole is respectively provided on the two side edges of the U-shaped plate, so that the two second fixing holes can be fixedly connected to any group of the first fixing holes by bolts and nuts, and the rotatable tray is fixed to the end of the U-shaped plate facing away from the first fixed plate.

[0009] Compared with the prior art, the above technical solution can facilitate the angle adjustment of the support plate and has a variety of angle options.

[0010] In a possible implementation, one end of the U-shaped plate facing the first fixing plate is rotatably connected to the second fixing plate via a fixing rod, and four first fixing holes are respectively formed on the two semicircular plates and the distances between any two adjacent first fixing holes are the same.

[0011] In a possible embodiment, one end of the U-shaped plate facing the first fixing plate is rotatably connected to the second fixing plate through a fixing rod, and four first fixing holes are respectively provided on the two semicircular plates, and the distances between two adjacent first fixing holes are different, so that when the second fixing hole is fixedly connected to different first fixing holes, the support plate forms an angle of 0°, 30°, 45°, or 60° with the horizontal plane.

[0012] Compared with the prior art, the above technical solution can provide users with two different angle adjustment solutions to meet the testing needs of different scenarios.

[0013] In a possible implementation, the lifting platform includes: Two cross-type support rods, each of the cross-type support rods includes four first connecting rods, wherein the two groups of first connecting rods that cross each other are rotatably connected, and the two groups of first connecting rods that have an end-to-end connection relationship are hingedly connected, one end of the two first connecting rods located at the bottom is fixedly connected to the top of the base, and the other end is a hinge point, a second connecting rod is respectively provided between the corresponding hinge points of the two cross-type support rods, and both ends of the second connecting rod are hingedly connected to the hinge point, and a through hole is provided in the middle of each second connecting rod along the length direction of the base; A support platform, the bottom end of which is fixedly connected to the top ends of the four first connecting rods located above; a rotating screw rod, passing through the through holes on the two second connecting rods in sequence and being threadedly connected with the through holes; A knob is arranged at any end of the rotating screw and is fixedly connected to the rotating screw, so that a user can adjust the distance between the two second connecting rods by rotating the rotating screw through the knob, thereby driving the two cross-type support rods to contract or open.

[0014] Compared with the prior art, the above technical solution can realize convenient adjustment of the contraction or expansion of the cross support rods through the matching relationship between the first connecting rod, the second connecting rod and the rotating screw rod, and can maintain the adjustment at any height.

[0015] In a possible embodiment, the lifting platform also includes two third fixed plates, which are arranged at the top of the base, and the two third fixed plates are respectively provided with a first sliding groove along the length direction of the base, and one end of the first connecting rod of one of the two cross support rods located at the bottom is fixedly connected to the third fixed plate on the same side, and one end of the other first connecting rod is slidably connected to the first sliding groove on the third fixed plate on the same side.

[0016] In a possible embodiment, the lifting platform also includes two fourth fixed plates, which are arranged at the bottom end of the support platform, and the two fourth fixed plates are respectively provided with a second sliding groove along the length direction of the base, and one end of the first connecting rod of one of the upper ones of the two cross support rods is fixedly connected to the fourth fixed plate on the same side, and one end of the other first connecting rod is slidably connected to the second sliding groove on the fourth fixed plate on the same side.

[0017] In a possible implementation manner, a groove is provided at the top of the base, and the angle adjustment device and the lifting platform are both located in the groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the position of the second fixing hole of the present invention; Figure 3 It is a principle schematic diagram of the torque sensor of the present invention; 1. Explanation of reference numerals: 1. base; 2. first fixing plate; 3. angle adjustment device; 31. rotatable tray; 32. second fixing plate; 33. semicircular plate; 33. semicircular plate; 34. U-shaped plate; 35. first fixing hole; 36. second fixing hole; 4. rotating shaft; 5. torque sensor; 6. support plate; 7. strap; 8. lifting platform; 81. first connecting rod; 82. second connecting rod; 83. support table; 84. rotating screw; 85. knob; 86. third fixing plate; 87. first slide groove; 88. fourth fixing plate; 89. second slide groove; 9. instrument display; 10. groove. DETAILED DESCRIPTION

[0019] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present invention, and are not intended to limit the protection scope of the embodiments of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0020] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] See also Figure 1 The embodiment of the present invention discloses a torsion torque measuring device suitable for a foot, comprising a base 1, a first fixing plate 2, an angle adjustment device 3, a rotating shaft 4, a torque sensor 5, a support plate 6, a strap 7, a lifting platform 8, an instrument display 9 and a control module. The base 1 is provided with a first fixing plate 2 at one end along its length direction, and the horizontal height of the top of the first fixing plate 2 is greater than the horizontal height of the top of the base 1; the angle adjustment device 3 is provided at one end of the first fixing plate 2 facing the base 1 and is located above the base 1, and the end of the angle adjustment device 3 facing away from the first fixing plate 2 is a rotatable tray 31; one end of the rotating shaft 4 is rotatably connected to the rotatable tray 31, and the other end of the rotating shaft 4 is provided with a torque sensor 5, and the torque sensor 5 is used to The angle change value and torsional torque of the rotating shaft 4 are detected in real time and output; the support plate 6 is arranged at the end of the torque sensor 5 facing away from the first fixed plate 2, and a strap 7 is provided on the support plate 6 to fix the front end of the user's foot; the lifting platform 8 is arranged at the top of the base 1 and at the other end of the base 1 along its own length direction to support the rear end of the user's foot; the instrument display 9 is arranged at the top of the first fixed plate 2 and the display end of the instrument display 9 faces the lifting platform 8; the control module is respectively connected to the torque sensor 5 and the instrument display 9, for receiving the angle change value and torsional torque output by the torque sensor 5 in real time and processing the angle change value and torsional torque to obtain a time-angle-torsion torque change curve and transmit it to the instrument display 9 for visual display.

[0022] Continue to participate Figure 1The base 1 is made of metal material and is used to provide a stable supporting structure. The base 1 is placed on a flat ground to ensure that the entire device remains stable during the test.

[0023] Continue to participate Figure 1 and Figure 2 The angle adjustment device 3 includes a second fixed plate 32, two semicircular plates 33, a U-shaped plate 34 and a rotatable tray 31. The second fixed plate 32 is arranged at one end of the first fixed plate 2 facing the base 1. The two semicircular plates 33 are symmetrically arranged at one end of the second fixed plate 32 facing the lifting platform 8 and are perpendicular to the second fixed plate 32. The two semicircular plates 33 are each provided with a plurality of first fixing holes 35 arranged in a circular array along the semicircular arc edge, and the first fixing holes 35 on the two semicircular plates 33 are symmetrically arranged. At least one second fixing hole 36 is respectively provided on the two side edges of the U-shaped plate 34, so that the two second fixing holes 36 can be fixedly connected with any group of the first fixing holes 35 by bolts and nuts. The rotatable tray 31 is fixed to the end of the U-shaped plate 34 facing away from the first fixed plate 2.

[0024] Continue to participate Figure 1 One end of the U-shaped plate 34 facing the first fixing plate 2 is rotatably connected to the second fixing plate 32 through a fixing rod. Four first fixing holes 35 are respectively opened on the two semicircular plates 33, and the distances between two adjacent first fixing holes 35 are the same.

[0025] Continue to participate Figure 1 The angle adjustment device 3 is made of metal material and adopts a porous design. Four first fixing holes 35 with different angles are preset on the surface, corresponding to 0°, 30°, 45° and 60° respectively. The angle adjustment is achieved by fixing with nuts and bolts. The user selects the appropriate hole position according to the test requirements. After adjusting the angle, the user can tighten it to ensure that the adjustable tray 31 remains stable and motionless during the entire test process to avoid affecting the measurement results due to shaking. This design can provide stable support at different angles and effectively ensure the measurement accuracy.

[0026] Continue to participate Figure 1 , the lifting platform 8 comprises: Two cross-type support rods, each of which includes four first connecting rods 81, wherein the two groups of first connecting rods 81 that cross each other are rotatably connected, and the two groups of first connecting rods 81 that have an end-to-end connection are hingedly connected, one end of the two first connecting rods 81 located at the bottom is fixedly connected to the top of the base 1, and the other end is a hinge point, and a second connecting rod 82 is respectively provided between the corresponding hinge points of the two cross-type support rods, and both ends of the second connecting rod 82 are hingedly connected to the hinge point, and a through hole is provided in the middle of each second connecting rod 82 along the length direction of the base 1; A support platform 83, the bottom end of which is fixedly connected to the top ends of the four first connecting rods 81 located above; A rotating screw 84 passes through the through holes on the two second connecting rods 81 in sequence and is threadedly connected to the through holes; A knob 85 is disposed at either end of the rotating screw 84 and is fixedly connected to the rotating screw 84 , so that the user can adjust the distance between the two second connecting rods 81 by rotating the rotating screw 84 through the knob 85 , thereby driving the two cross-type support rods to contract or expand.

[0027] Continue to participate Figure 1 The lifting platform 8 is designed with a scissor-type structure to achieve smooth lifting and lowering adjustment in the vertical direction. A cross support rod is connected to the bottom of the support platform 83. The cross support rod is fixed to the platform frame through a hinge, and can control the lifting height as the rotating screw 84 rotates. The rotating screw 84 is equipped with a knob 85 on the outside. The user can accurately adjust the height of the platform by manually rotating the knob 85 to ensure the stability of the platform and the smoothness of the lifting. After the adjustment is completed, tightening the screw 84 can lock the platform height to prevent height changes during the measurement process. The upper surface of the platform is made of metal plates, which provides sufficient strength to support the feet and ensure the horizontality and stability of the platform during testing.

[0028] Continue to participate Figure 1 The torque sensor 5 is closely connected to the bearing system through the rotating shaft 4. The rotating shaft 4 rotates freely with the support of the bearing system and is used to accurately measure the torsional torque applied by the foot. The bearing system adopts a double-bearing design. The inner and outer bearings are respectively used to support the two ends of the rotating shaft 4 to ensure that the rotating shaft 4 can rotate smoothly when subjected to force, reduce axial and radial friction, and improve the stability and accuracy of the overall measurement. The upper part of the rotating shaft 4 is connected to the support plate 6, and the support plate 6 is tightly fitted with the foot of the test person through a fixing device to ensure that every torsional movement of the foot can be directly transmitted to the rotating shaft 4.

[0029] Continue to participate Figure 1 When the subject applies a torsional force, the rotating shaft 4 rotates with the support of the bearing system. At this time, the torque sensor 5 detects the angle change and torsional torque of the rotating shaft 4, and converts these physical quantities into electrical signal outputs. The torque sensor 5 transmits the angle change and torque data to the control module through its high-precision measurement circuit. The control module can process, analyze and store the collected signals in real time. At the same time, the data will also be transmitted to the instrument display 9 through the digital interface, so that the user can instantly view the value of the torsional torque of the foot, ensuring data visualization and accurate recording during the entire test process.

[0030] Continue to participate Figure 1The control module includes an embedded system or a computer with efficient data acquisition and processing capabilities. The module is connected to the torque sensor 5 and receives the electrical signal output by the torque sensor 5 in real time. The control module can record key data such as the torsion torque value of the foot, the time when the torque is generated, the angle change, and the torque fluctuation curve. The schematic diagram of the torque sensor 5 is shown in FIG. Figure 3 As shown, the torque direction is indicated.

[0031] Continue to participate Figure 1 The instrument display 9 is a digital display screen, which displays the torsion torque value and other measurement data in real time, so as to facilitate the operator and the testee to conduct real-time monitoring. The value of the instrument display 9 is updated at a high frequency, and can quickly respond to instantaneous changes in the foot and provide instant feedback.

[0032] Continue to participate Figure 1 ,The strap 7 is made of soft but strong material, which is used to tightly fix the foot without causing discomfort. The support ,6 provides a stable support surface to ensure that the foot remains stable during the test. The strap ,7 is fixed by Velcro or buckle, which is convenient for quick adjustment and removal.

[0033] Continue to participate Figure 1 , the device of this application follows the following usage method when in use: Step S1, preparation: Install the device on a flat ground, ensure that the base 1 is stable, adjust the positions of the adjustable angle tray 31 and the lifting platform 3 according to the foot posture of the test subject, and lock them; Step S2, fix the foot: The test subject places the foot on the support plate 6 and fixes the foot with the strap 7, ensuring that the strap 7 fits the foot tightly but does not cause discomfort, and the foot remains stable on the support plate 6; Step S3, measuring the torsional moment: The test subject applies a torsion torque of the foot under the guidance, and the torque sensor 5 measures the torsion torque applied by the foot in real time. The torque sensor 5 converts the measured torsion torque value into an electrical signal and transmits it to the control module through a data line; Step S4, data recording and analysis: The control module records the received electrical signals in real time and converts them into torsional torque values. The control module analyzes the measurement data through built-in software, generates torsional torque values ​​and displays them on the instrument display 9, providing data support for foot health assessment, rehabilitation training and sports performance analysis.

[0034] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0035] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A torsion torque measuring device suitable for a foot, characterized in that: include: A base (1), wherein a first fixing plate (2) is provided at one end of the base (1) along its length direction, and the horizontal height of the top end of the first fixing plate (2) is greater than the horizontal height of the top end of the base (1); an angle adjustment device (3), arranged at one end of the first fixing plate (2) facing the base (1) and located above the base (1), and one end of the angle adjustment device (3) facing away from the first fixing plate (2) being a rotatable tray (31); a rotating shaft (4), one end of the rotating shaft (4) being rotatably connected to the rotatable tray (31), and the other end of the rotating shaft (4) being provided with a torque sensor (5), the torque sensor (5) being used to detect the angle change value and the torsional torque of the rotating shaft (4) in real time and output them; a support plate (6) disposed at one end of the torque sensor (5) facing away from the first fixing plate (2), the support plate (6) being provided with a strap (7) for fixing the front end of a user's foot; A lifting platform (8) is arranged at the top of the base (1) and located at the other end of the base (1) along its own length direction, so as to support the rear end of the user's foot; an instrument display (9), arranged at the top end of the first fixing plate (2) and with the display end of the instrument display (9) facing the lifting platform (8); A control module is connected to the torque sensor (5) and the instrument display (9), respectively, and is used to receive the angle change value and the torsional torque output by the torque sensor (5) in real time, and to process the angle change value and the torsional torque to obtain a time-angle-torque change curve, and transmit it to the instrument display (9) for visual display.

2. The torsional moment measuring device according to claim 1, characterized in that: The angle adjustment device (3) comprises a second fixing plate (32), two semicircular plates (33), a U-shaped plate (34) and the rotatable tray (31), wherein the second fixing plate (32) is arranged at one end of the first fixing plate (2) facing the base (1), the two semicircular plates (33) are symmetrically arranged at one end of the second fixing plate (32) facing the lifting platform (8) and are perpendicular to the second fixing plate (32), the two semicircular plates (33) are each provided with a plurality of first fixing holes (35) arranged in a circular array along the semicircular arc edge, and the first fixing holes (35) on the two semicircular plates (33) are symmetrically arranged, at least one second fixing hole (36) is respectively provided on two side edges of the U-shaped plate (34), so that the two second fixing holes (36) can be fixedly connected to any group of the first fixing holes (35) by bolts and nuts, and the rotatable tray (31) is fixed to one end of the U-shaped plate (34) facing away from the first fixing plate (2).

3. The torsional moment measuring device according to claim 3, characterized in that: One end of the U-shaped plate (34) facing the first fixing plate (2) is rotatably connected to the second fixing plate (32) via a fixing rod, and four first fixing holes (35) are respectively provided on the two semicircular plates (33), and the distances between two adjacent first fixing holes (35) are the same.

4. The torsional moment measuring device according to claim 3, characterized in that: One end of the U-shaped plate (34) facing the first fixing plate (2) is rotatably connected to the second fixing plate (32) via a fixing rod, and four first fixing holes (35) are respectively provided on the two semicircular plates (33), and the distances between two adjacent first fixing holes (35) are different, so that when the second fixing holes (36) are fixedly connected to different first fixing holes (35), the support plate (6) forms an angle of 0°, 30°, 45° or 60° with the horizontal plane.

5. The torsional moment measuring device according to claim 1, characterized in that: The lifting platform (8) comprises: Two cross-type support rods, each of the cross-type support rods comprises four first connecting rods (81), wherein the two groups of first connecting rods (81) that cross each other are rotatably connected, and the two groups of first connecting rods (81) that have an end-to-end connection are hingedly connected, one end of the two first connecting rods (81) located at the bottom is fixedly connected to the top of the base (1), and the other end is a hinge point, and a second connecting rod (82) is respectively provided between the corresponding hinge points of the two cross-type support rods, and both ends of the second connecting rod (82) are hingedly connected to the hinge point, and a through hole is provided in the middle of each second connecting rod (82) along the length direction of the base (1); a support platform (83), the bottom end of the support platform (83) being fixedly connected to the top ends of the four first connecting rods (81) located above; a rotating screw (84) passing through the through holes on the two second connecting rods (81) in sequence and being threadedly connected to the through holes; A knob (85) is provided at any end of the rotating screw rod (84) and is fixedly connected to the rotating screw rod (84), so that a user can rotate the rotating screw rod (84) through the knob (85) to adjust the distance between the two second connecting rods (81), thereby driving the two cross-type support rods to contract or expand.

6. The torsional moment measuring device according to claim 5, characterized in that: The lifting platform (8) further comprises two third fixing plates (86) which are arranged at the top of the base (1); a first slide groove (87) is respectively provided on the two third fixing plates (86) along the length direction of the base (1); one end of the first connecting rod (81) located at the bottom of the two cross-type support rods is fixedly connected to the third fixing plate (86) located on the same side, and one end of the other first connecting rod (81) is slidably connected to the first slide groove (87) on the third fixing plate (86) located on the same side.

7. The torsional moment measuring device according to claim 5 or 6, characterized in that: The lifting platform (8) also includes two fourth fixed plates (88) arranged at the bottom end of the support platform (83), and the two fourth fixed plates (88) are respectively provided with a second slide groove (89) along the length direction of the base (1), and one end of the first connecting rod (81) located at the top of the two cross-type support rods is fixedly connected to the fourth fixed plate (88) located on the same side, and one end of the other first connecting rod (81) is slidably connected to the second slide groove (89) on the fourth fixed plate (88) located on the same side.

8. The torsional moment measuring device according to claim 1, characterized in that: A groove (10) is provided at the top of the base (1), and the angle adjustment device (3) and the lifting platform (8) are both located in the groove (10).

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