Force measuring system for popliteal muscles

Abstract

The utility model relates to the technical field of sports equipment, in particular to a popliteal muscle force measuring system which comprises a body, a sensor assembly, an ankle fixing assembly, an adjusting assembly and a control assembly. The locking ring is arranged on the adjusting pipe in a sleeving mode, the pressing cover and the lower connecting piece are locked, the end of the lower connecting piece extrudes the pressing cover, and therefore the position, relative to the pressing cover, of the adjusting pipe is locked and fixed, and when the position of the ankle fixing assembly needs to be adjusted, only the pressing cover needs to be rotated anticlockwise, the pressing cover and the lower connecting piece are unscrewed, and the locking ring unlocks the adjusting pipe. After the adjusting pipe is retracted or drawn out to a proper position, the gland is rotated clockwise, so that the gland and the lower connecting piece are locked, the locking ring and the adjusting pipe are locked, the ankle fixing assembly is fixed to a proper position, and through the combined design of the lower connecting piece, the gland, the locking ring and the upper connecting piece, the ankle fixing assembly is fixed to a proper position. The distance between the ankle fixing assembly and the main body can be individually adjusted according to user requirements, and the adaptability is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of sports equipment, in particular to a hamstring muscle force measurement system. Background Art

[0002] The hamstrings refer to a group of muscles located on the back of the thigh, including the semimembranosus, semitendinosus, and biceps femoris. These muscles originate from the ischiopelvic region and play a vital role in the movement of the knee and hip joints. The functions of the hamstrings include: 1. Knee flexion: Assisting in knee flexion, such as when bending over or kicking; 2. Hip extension: The semitendinosus and semimembranosus help extend the hip joint when standing or doing push-ups; 3. Maintaining body balance: The hamstrings are also important for maintaining standing posture and stability. These muscles play a key role in daily life and various sports, especially in activities that require flexing or extending the knee joint.

[0003] Therefore, hamstring dynamometers have been developed for training, testing, rehabilitation, and other purposes. Hamstring dynamometers are typically designed to assess hamstring strength by measuring the force generated by resistance or muscle contraction. They may consist of a fixed platform or stand and a lever or cable system connected to some dynamometer. Dynamometers use different methods to assess hamstring strength, such as static sustained contraction testing (i.e., maintaining muscle contraction at a specific angle), dynamic testing (e.g., strength performance during knee flexion and extension exercises), or maximal strength testing (e.g., maximum push or pull).

[0004] However, the height of the ankle fixation component of the hamstring force measurement system currently on the market is fixed. The fixed-height ankle fixation component cannot adapt to the physiological differences of all users and may cause them to be unable to maintain the correct posture or angle during the test, affecting the accuracy of the force measurement and poor adaptability.

[0005] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0006] The utility model provides a hamstring force measurement system, thereby effectively solving the problems in the background technology.

[0007] In order to achieve the above-mentioned object, the technical solution adopted by the present invention is: a hamstring force measurement system, comprising: a main body, a sensor assembly, an ankle fixing assembly, an adjustment assembly and a control assembly;

[0008] The main body is a receiving space with an opening on one side, and the sensor assembly and the control assembly are arranged in the receiving space. The sensor assembly is used to measure the tension and pressure generated by the hamstring muscles during the test; the control assembly is used to receive the force measurement data from the sensor assembly and perform analysis and processing;

[0009] One end of the adjustment component is fixedly connected to the sensor component, and the other end is hinged to the ankle fixing component, for adjusting the distance between the ankle fixing component and the main body;

[0010] The adjustment assembly includes a lower connecting piece, a locking ring, a gland and an upper connecting piece;

[0011] The lower connecting member is a cylindrical structure, one end of which is fixedly connected to the sensor assembly and the other end is screwed to the gland, and an accommodating cavity is provided between the lower connecting member and the gland;

[0012] The upper connecting member includes a connecting end and an adjusting tube connected thereto. The adjusting tube passes through the gland and is slidably arranged along the axial direction of the gland. At least a portion of the adjusting tube is arranged in the accommodating cavity.

[0013] The locking ring is sleeved on the adjusting tube and is locked by the gland and the lower connecting piece so that the end of the lower connecting piece presses the gland, thereby locking and fixing the position of the adjusting tube relative to the gland.

[0014] Furthermore, the locking ring includes a ring body and deformation sections arranged at equal intervals on the ring body, the end of the deformation section is provided with a first inclined surface, and the mouth of the lower connecting piece is provided with a second inclined surface. The second inclined surface is squeezed against the first inclined surface by locking the pressure cover and the lower connecting piece.

[0015] Furthermore, the adjustment assembly also includes a limiting member, which is fixedly connected to the end of the adjustment tube, and a limiting protrusion is provided on the side of the limiting member away from the adjustment tube to prevent the adjustment tube from being pulled out of the pressure cover.

[0016] Furthermore, the ankle fixation assembly includes a fixing member and a steering connector, wherein the fixing member is used to be connected to the ankle of the test person; and the steering connector is hinged to the connecting end.

[0017] Furthermore, the fixing member is a strap and a wool sticky ...

[0018] Furthermore, the fixing member is an ankle fixing hook, the steering connecting member is a connecting block, one end of the connecting block is hinged to the ankle fixing hook, and the other end is hinged to the connecting end.

[0019] Furthermore, the sensor assembly includes a bracket, a sensor, a spherical connector, a universal base and an elastic dust cover;

[0020] One end of the bracket is fixedly arranged on the inner wall of the main body, the universal base is arranged on the bottom of the bracket, one end of the spherical connector is arranged in the pit of the universal base, and the other end is fixedly connected to the bottom of the sensor;

[0021] The elastic dust cover is arranged at the mouth of the bracket close to the main body.

[0022] Furthermore, it also includes a support rod, which is in a U-shaped structure and passes through the main body. The support rod and the main body are detachably connected by a pin, and a plurality of anti-slip pads are provided at the bottom of the support rod.

[0023] Furthermore, a soft pad is provided on the main body, and the soft pad is provided with scales along the length direction.

[0024] Furthermore, the control assembly includes a control panel, a box cover, a junction box and a terminal board;

[0025] The terminal block is arranged in the junction box, the junction box is connected to the control panel, and the junction box is fixed to the inner side wall of the main body. The control panel is arranged in the hole of the main body and is flush with the surface of the main body.

[0026] The beneficial effects of the present invention are as follows: when it is necessary to adjust the position of the ankle fixing assembly, the pressure cover only needs to be rotated counterclockwise to loosen the pressure cover and the lower connecting piece. At this time, since the end of the lower connecting piece is away from the pressure cover, the locking ring releases the lock on the adjustment tube. After the adjustment tube is retracted or pulled out to the appropriate position, the pressure cover is rotated clockwise to lock the pressure cover and the lower connecting piece. At this time, the end of the lower connecting piece presses the locking ring, so that the locking ring and the adjustment tube are locked, thereby fixing the ankle fixing assembly to the appropriate position. Through the combined design of the lower connecting piece, the pressure cover, the locking ring and the upper connecting piece, the distance between the ankle fixing assembly and the main body can be personalized according to user needs, and the adaptability is wider. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1Schematic diagram of the structure of the hamstring force measurement system in Example 1;

[0029] Figure 2 This is a schematic diagram of the structure of the adjustment component connected to the sensor component and the ankle fixation component in Example 1;

[0030] Figure 3 A cross-sectional view of the adjustment assembly connected to the sensor assembly and the ankle fixation assembly in Example 1;

[0031] Figure 4 In Example 1, Figure 3 A partial enlarged view of point A in the middle;

[0032] Figure 5 Schematic diagram of the structure of the adjustment component in Example 1;

[0033] Figure 6 Schematic diagram of the structure of the locking ring in Example 1;

[0034] Figure 7 Schematic diagram of the structure of the control component in Example 1;

[0035] Figure 8 Schematic diagram of the structure of the hamstring force measurement system in Example 2;

[0036] Figure 9 This is a schematic diagram of the structure of the adjustment component connected to the sensor component and the ankle fixation component in Example 2.

[0037] Figure numerals: 1. main body; 11. cushion; 111. scale; 2. sensor assembly; 21. bracket; 22. sensor; 23. spherical connector; 24. universal base; 25. elastic dust cover; 3. ankle fixing assembly; 31. fixing member; 311. strap; 312. ankle fixing hook; 32. steering connector; 321. connecting frame; 322. connecting block; 4. adjustment assembly; 41. lower connector; 411. second inclined plane; 42. locking ring; 421. ring body; 422. deformation section; 422a. first inclined plane; 43. pressure cover; 44. upper connector; 441. connecting end; 442. adjusting tube; 45. limiter; 451. convex edge; 5. control assembly; 51. control panel; 52. box cover; 53. junction box; 6. support rod; 7. latch; 8. anti-slip pad. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integrated connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0041] Example 1:

[0042] like Figures 1 to 7 As shown: A hamstring force measurement system, comprising: a main body 1, a sensor component 2, an ankle fixing component 3, an adjustment component 4 and a control component 5;

[0043] The main body 1 is a storage space with an opening on one side. The sensor assembly 2 and the control assembly 5 are arranged in the storage space. The sensor assembly 2 is used to measure the tension and pressure generated by the hamstring muscles during the test; the control assembly 5 is used to receive the force measurement data from the sensor assembly 2 and perform analysis and processing.

[0044] One end of the adjustment component 4 is fixedly connected to the sensor component 2, and the other end is hinged to the ankle fixing component 3, and is used to adjust the distance between the ankle fixing component 3 and the main body 1;

[0045] The adjustment assembly 4 includes a lower connecting member 41, a locking ring 42, a pressure cover 43 and an upper connecting member 44;

[0046] The lower connecting member 41 is a cylindrical structure, one end of which is fixedly connected to the sensor assembly 2 and the other end is screwed to the gland 43, and an accommodating cavity is provided between the lower connecting member 41 and the gland 43;

[0047] The upper connecting member 44 includes a connecting end 441 and an adjusting tube 442 that are connected to each other. The adjusting tube 442 passes through the gland 43 and is axially slidable along the gland 43. At least a portion of the adjusting tube 442 is disposed in the accommodating cavity.

[0048] The locking ring 42 is sleeved on the adjusting tube 442 and is locked by the gland 43 and the lower connecting piece 41 so that the end of the lower connecting piece 41 presses the gland 43, thereby locking and fixing the position of the adjusting tube 442 relative to the gland 43.

[0049] When the position of the ankle fixation assembly 3 needs to be adjusted, just rotate the pressure cover 43 counterclockwise to loosen the pressure cover 43 and the lower connecting member 41. At this time, since the end of the lower connecting member 41 is away from the pressure cover 43, the locking ring 42 releases the lock on the adjustment tube 442. After the adjustment tube 442 is retracted or pulled out to the appropriate position, rotate the pressure cover 43 clockwise to lock the pressure cover 43 and the lower connecting member 41. At this time, the end of the lower connecting member 41 presses the locking ring 42, so that the locking ring 42 and the adjustment tube 442 are locked, thereby fixing the ankle fixation assembly 3 to the appropriate position.

[0050] Through the combined design of the lower connecting piece 41, the pressure cover 43, the locking ring 42 and the upper connecting piece 44, the distance between the ankle fixing component 3 and the main body 1 can be flexibly adjusted to adapt to the physiological characteristics of different users and has a wider adaptability; it can be personalized according to user needs, so that the user will no longer feel uncomfortable due to the fixed height during the test. Better comfort also means that the user can be more focused and reduce fatigue during long-term testing or rehabilitation training.

[0051] As a preferred embodiment of the above embodiment, the locking ring 42 includes a ring body 421 and a deformation section 422 arranged at equal intervals on the ring body 421. The end of the deformation section 422 is provided with a first inclined surface 422a, and the mouth of the lower connecting member 41 is provided with a second inclined surface 411. The second inclined surface 411 is squeezed against the first inclined surface 422a by locking the pressure cover 43 and the lower connecting member 41, so that the deformation section 422 is deformed, thereby locking the locking ring 42 and the adjusting tube 442.

[0052] Through the design of the deformation section 422 of the locking ring 42, especially the cooperation between the first inclined surface 422a and the second inclined surface 411 of the lower connecting member 41, it is ensured that the deformation section 422 can be evenly stressed and deformed during the locking process, thereby achieving reliable locking of the adjustment tube 442, effectively preventing the adjustment tube 442 from sliding during use, and ensuring the stability of the locking.

[0053] In this embodiment, the adjustment component 4 also includes a limit member 45, which is fixedly connected to the end of the adjustment tube 442, and a limit protrusion 451 is provided on the side of the limit member 45 away from the adjustment tube 442, which is used to prevent the adjustment tube 442 from being pulled out of the pressure cover 43. Specifically, the addition of the limit member 45 ensures that the adjustment tube 442 is adjusted within the set range, avoiding system failure or potential user injury risks caused by excessive adjustment range, and further improving the safety performance of the system.

[0054] Among them, the ankle fixation assembly 3 includes a fixing part 31 and a steering connector 32, the fixing part 31 is used to connect to the ankle of the test person; the steering connector 32 is hinged to the connecting end 441, thereby realizing multi-angle adjustment, which can adapt to the natural movement trajectory of the ankle during the test, reduce the uneven force or discomfort of the ankle when fixed, and improve the user's comfort; on the other hand, through the hinged design, the ankle fixing part 31 can adapt to the different body positions and movement postures of the user during the test, ensure the free movement range of the legs, while maintaining the correct posture during the test, and improve the accuracy and consistency of the force measurement system.

[0055] As a preferred embodiment of the above embodiment, the fixing member 31 is a strap 311 and a wool adhesive provided on the strap 311, and the steering connecting member 32 is a connecting frame 321, which is hinged between the connecting frame 321 and the connecting end 441. Specifically, the fixing member 31 adopts the strap 311 and the wool adhesive design, so that the ankle fixing component 3 can be adjusted and fixed quickly and conveniently. Compared with the traditional fixing method, the strap 311 can be flexibly adjusted according to the size of different ankles and has stronger adaptability; the soft material of the strap 311 and the adjustability of the wool adhesive can ensure that no excessive pressure is exerted on the user's ankle during fixation, reducing discomfort, especially during long-term testing or training, which can effectively avoid discomfort or pain. Since the strap 311 and the wool adhesive can be freely adjusted in length, the fixing member 31 can adapt to the ankle size and shape of different users, thereby expanding the scope of application of the system and making it suitable for users of various body shapes and ankle sizes.

[0056] As a preferred embodiment of the above, the sensor assembly 2 includes a bracket 21, a sensor 22, a spherical connector 23, a universal base 24 and an elastic dust cover 25;

[0057] One end of the bracket 21 is fixed to the inner wall of the main body 1, and the universal base 24 is provided at the bottom of the bracket 21. One end of the spherical connector 23 is provided in a recess of the universal base 24, and the other end is fixedly connected to the bottom of the sensor 22. Through the cooperation between the spherical connector 23 and the universal base 24 in the sensor assembly 2, the angle of the sensor 22 can be freely adjusted in multiple directions to adapt to different test scenarios and user needs, ensuring that the sensor 22 can accurately align with the force direction during the force measurement process, thereby improving the accuracy of the measurement.

[0058] The elastic dust cover 25 is arranged at the mouth of the bracket 21 close to the main body 1. Specifically, the setting of the elastic dust cover 25 helps to prevent dust and other foreign particles from entering the interior of the sensor assembly 2, extend the service life of the sensor 22, and ensure the reliability and accuracy of the sensor 22 during long-term use.

[0059] In this embodiment, it also includes a support rod 6, which is a U-shaped structure passing through the main body 1. The support rod 6 and the main body 1 are detachably connected by a pin 7. A plurality of anti-slip pads 8 are provided at the bottom of the support rod 6. Specifically, on the one hand, by providing the anti-slip pads 8 and the U-shaped support structure, better mechanical support can be provided to ensure that the force measurement system is more stable during use and is not easy to tip over or move; on the other hand, the support rod 6 and the main body 1 are detachably connected by the pin 7, so that the system can be easily disassembled when not in use, which is convenient for transportation and storage of the equipment. At the same time, this design also facilitates the rapid assembly of the equipment and reduces the installation time.

[0060] Among them, a soft pad 11 is provided on the main body 1, and a scale 111 is provided along the length direction of the soft pad 11. Specifically, the soft pad 11 can be a sponge pad or a pad made of other soft materials, which can provide better comfort for the tester, especially when maintaining a certain posture for a long time during the test, the soft pad 11 can effectively relieve the pressure on the contact part between the body and the equipment, reduce discomfort, and enhance the user experience; the scale 111 indication can quickly determine and record the user's position in the test, ensure that the test conditions are consistent each time, and improve the repeatability and consistency of the data.

[0061] As a preferred embodiment of the above, the control assembly 5 includes a control panel 51, a box cover 52, a junction box 53 and a wiring board;

[0062] The terminal block is arranged in the junction box 53, the junction box 53 is connected to the control panel 51, and the junction box 53 is fixed to the inner wall of the main body 1. The control panel 51 is arranged in the hole of the main body 1 and is flush with the surface of the main body 1. Specifically, the modular design of the terminal block makes cable connection more convenient, and can quickly connect or replace lines. It also facilitates subsequent upgrades or expansions of the equipment, making the system more maintainable and flexible.

[0063] Example 2:

[0064] like Figure 7 、 8 As shown, different from Example 1, the fixing part 31 of the ankle fixing assembly 3 is an ankle fixing hook 312, and the steering connecting part 32 is a connecting block 322. One end of the connecting block 322 is hinged to the ankle fixing hook 312, and the other end is hinged to the connecting end 441. Specifically, on the one hand, the hinged design of the steering connecting part 32 and the connecting block 322, as well as the hinged design of the connecting block 322 and the connecting end 441, can make the ankle fixing hook 312 adjustable at different angles to adapt to various angles and motion ranges of the user's ankle, thereby reducing the sense of oppression generated during fixation and improving the user's comfort; on the other hand, this double hinged design can make the fixing part 31 have a larger range of motion, suitable for different ankle sizes and postures, meet the needs of different users, and enhance the applicability of the equipment.

[0065] Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and the specification are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A hamstring force measurement system, characterized in that: include: Main body, sensor assembly, ankle fixation assembly, adjustment assembly and control assembly; The main body is a receiving space with an opening on one side, and the sensor assembly and the control assembly are arranged in the receiving space. The sensor assembly is used to measure the tension and pressure generated by the hamstring muscles during the test; the control assembly is used to receive the force measurement data from the sensor assembly and perform analysis and processing; One end of the adjustment component is fixedly connected to the sensor component, and the other end is hinged to the ankle fixing component, for adjusting the distance between the ankle fixing component and the main body; The adjustment assembly includes a lower connecting piece, a locking ring, a gland and an upper connecting piece; The lower connecting member is a cylindrical structure, one end of which is fixedly connected to the sensor assembly and the other end is screwed to the gland, and an accommodating cavity is provided between the lower connecting member and the gland; The upper connecting member includes a connecting end and an adjusting tube connected thereto. The adjusting tube passes through the gland and is slidably arranged along the axial direction of the gland. At least a portion of the adjusting tube is arranged in the accommodating cavity. The locking ring is sleeved on the adjusting tube and is locked by the gland and the lower connecting piece so that the end of the lower connecting piece presses the gland, thereby locking and fixing the position of the adjusting tube relative to the gland.

2. The hamstring force measurement system according to claim 1, wherein: The locking ring includes a ring body and deformation sections arranged at equal intervals on the ring body, the end of the deformation section is provided with a first inclined surface, and the mouth of the lower connecting piece is provided with a second inclined surface. The second inclined surface is squeezed against the first inclined surface by locking the pressure cover and the lower connecting piece.

3. The hamstring force measurement system according to claim 2, wherein: The adjustment assembly further includes a limiting member, which is fixedly connected to the end of the adjustment tube, and a limiting ridge is provided on a side of the limiting member away from the adjustment tube to prevent the adjustment tube from being pulled out of the gland.

4. The hamstring force measurement system according to claim 1, wherein: The ankle fixing assembly includes a fixing part and a steering connecting part. The fixing part is used to be connected to the ankle of the test person; the steering connecting part is hinged to the connecting end.

5. The hamstring force measurement system according to claim 4, characterized in that: The fixing member is a strap and a wool sticky tape arranged on the strap, and the steering connecting member is a connecting frame, and the connecting frame and the connecting end are hinged.

6. The hamstring force measurement system according to claim 4, characterized in that: The fixing member is an ankle fixing hook, and the steering connecting member is a connecting block. One end of the connecting block is hinged to the ankle fixing hook, and the other end is hinged to the connecting end.

7. The hamstring force measurement system according to claim 1, wherein: The sensor assembly includes a bracket, a sensor, a spherical connector, a universal base and an elastic dust cover; One end of the bracket is fixedly arranged on the inner wall of the main body, the universal base is arranged on the bottom of the bracket, one end of the spherical connector is arranged in the pit of the universal base, and the other end is fixedly connected to the bottom of the sensor; The elastic dust cover is arranged at the mouth of the bracket close to the main body.

8. The hamstring force measurement system according to claim 1, wherein: It also includes a support rod, which is in a U-shaped structure and passes through the main body. The support rod and the main body are detachably connected by a pin, and a plurality of anti-slip pads are provided at the bottom of the support rod.

9. The hamstring force measurement system according to claim 1, wherein: A soft pad is provided on the main body, and scales are provided along the length direction of the soft pad.

10. The hamstring force measurement system according to claim 1, wherein: The control assembly includes a control panel, a box cover, a junction box and a terminal board; The terminal block is arranged in the junction box, the junction box is connected to the control panel, and the junction box is fixed to the inner side wall of the main body. The control panel is arranged in the hole of the main body and is flush with the surface of the main body.

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