Lower limb pedaling constant-speed testing, training, evaluating and controlling device

Abstract

The utility model belongs to the field of training instruments, and particularly relates to a lower limb pedaling constant-speed testing, training, evaluating and controlling device. The utility model provides a lower limb pedaling constant-speed testing, training, evaluation and control device which comprises a frame body, a driving device, a rotating shaft, a first synchronous belt wheel mechanism, a seat and a pedaling plate. The driving device is arranged at one end in the frame body and drives the rotating shaft to rotate around the axis of the rotating shaft; the driving wheel end of the first synchronous belt wheel mechanism is arranged on the rotating shaft in a sleeving mode, and the driven wheel end of the first synchronous belt wheel mechanism is arranged at the other end in the frame body. The seat is fixed to the frame body and located at one end of the first synchronous belt wheel mechanism. The pedal is fixed to a synchronous belt of the first synchronous belt wheel mechanism. The lower limb pedaling constant-speed testing, training, evaluation and control device provided by the utility model can realize safer and more efficient lower limb pedaling training, and can control the pedaling speed. The LED lamp is light in structure, high in integration level and good in heat dissipation performance.

Description

Technical Field

[0001] This utility model belongs to the field of training equipment, specifically relating to a lower limb pedaling isokinetic testing and evaluation device. Background Technology

[0002] Existing lower limb pedaling training devices all use a chain-driven weight structure. This type of chain-driven lower limb pedaling training device cannot provide a continuous and stable resistance output, and the device is also relatively bulky. Moreover, the weight can only be increased in stages, which is not flexible enough. In addition, the weight increases the weight of the entire device, making it not lightweight. Utility Model Content

[0003] The present invention provides a lower limb pedaling isokinetic testing and evaluation device, which can effectively solve the problems in the background art.

[0004] This utility model provides a lower limb pedal isokinetic testing and evaluation device, which includes a frame, a drive device, a rotating shaft, a synchronous belt pulley mechanism, a seat, and pedals;

[0005] The drive unit is located at one end of the frame, and drives the rotating shaft to rotate around its axis; the driving wheel end of the synchronous belt pulley mechanism is sleeved on the rotating shaft, and the driven wheel end of the synchronous belt pulley mechanism is located at the other end of the frame; the seat is fixed on the frame and located at one end of the synchronous belt pulley mechanism; the pedal is fixed to the synchronous belt of the synchronous belt pulley mechanism.

[0006] As a further optimization of this utility model, the driving device includes a motor and a reducer, wherein the motor is a rotary motor or the reducer is a rotary reducer, the motor is erected at the bottom of the frame, and the output end of the motor is connected to the input end of the reducer.

[0007] As a further optimization of this utility model, it also includes a liquid cooling chamber, a circulating pump, a liquid cooling box, and a fan; the transmission part of the motor is located inside the liquid cooling chamber; the circulating pump drives the coolant to circulate through the liquid cooling box and the liquid cooling chamber; the fan has two sets and is located on both sides of the liquid cooling chamber, one set blows air into the liquid cooling chamber and the other set draws air into the liquid cooling chamber.

[0008] As a further optimization of this utility model, it includes a base plate, a top plate, and side plates; two side plates are provided and are erected in parallel between the base plate and the top plate; one set of fans is fixed on one of the side plates and the side plate has a ventilation opening corresponding to the fan; another fan is provided on the other side plate, and the air blowing direction of the second fan is the same as that of the fan opposite to it; the motor is fixed on the base plate.

[0009] As a further optimization of this utility model, it also includes a vertical plate; the vertical plate is erected on the top plate; and the rotating shaft is rotatably connected to the vertical plate.

[0010] As a further optimization of this utility model, it also includes a second synchronous belt pulley mechanism, the output end of the drive device is connected to the driving wheel end of the second synchronous belt pulley mechanism, and the driven wheel end of the second synchronous belt pulley mechanism is connected to the rotating shaft.

[0011] As a further optimization of this utility model, it also includes a slide rail and a slider; the slide rail is set on the frame and parallel to the synchronous belt pulley mechanism; the slider is set on the slide rail; the slider is connected to the pedal.

[0012] As a further optimization of this utility model, there are two slide rails located on both sides of the synchronous belt pulley mechanism; there are two sets of sliders respectively locked onto the two slide rails.

[0013] As a further optimization of this utility model, it also includes a base and a support plate; the two ends of the base are respectively fixed to two sets of sliders, and the middle part of the base is fixed to the synchronous belt of the synchronous belt pulley mechanism; there are two support plates, which are respectively erected on the base corresponding to the two sets of sliders; there are two pedals, which are respectively fixed to the two support plates.

[0014] As a further optimization of this utility model, a pressure sensor is provided between the pedal and the support plate.

[0015] This invention provides a lower limb pedaling isokinetic testing and evaluation device, which enables safer and more efficient lower limb pedaling training and allows for control of pedaling speed. This invention is lightweight, highly integrated, and also has excellent heat dissipation performance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0017] Figure 2 yes Figure 1 Schematic diagram of the internal structure;

[0018] Figure 3 yes Figure 2 Schematic diagram of the liquid-cooled motor system;

[0019] Figure 4 yes Figure 3 Another perspective illustration;

[0020] Figure 5 yes Figure 3 Cross-sectional diagram;

[0021] Among them, the components are: motor 1, reducer 2, rotating shaft 3, synchronous belt pulley mechanism 1 4, frame 5, seat 6, pedal 7, base plate 8, top plate 9, side plate 10, fan 2 11, upright plate 12, synchronous belt pulley mechanism 2 13, slide rail 14, slider 15, base 16, support plate 17, liquid cooling box 18, fan 1 19, liquid cooling chamber 20, and pressure sensor 21. Detailed Implementation

[0022] like Figure 1 , 2 As shown, this embodiment includes a drive unit, a rotating shaft 3, a synchronous belt pulley mechanism 4, a frame 5, a seat 6, and a foot pedal 7.

[0023] The drive unit is located at one end of the frame 5, and drives the rotating shaft 3 to rotate around its axis. In this embodiment, the drive unit includes a motor 1 and a reducer 2. The output end of the motor 1 is connected to the input end of the reducer 2, and the output end of the reducer 2 is connected to one end of the rotating shaft 3. Specifically, the reducer 2 is an angle reducer, and the motor 1 is positioned at the bottom of the frame 5. Placing the motor 1 at the bottom ensures the smoothest possible operation of the motor 1. The reducer 2 is connected to the output shaft of the motor 1. In other embodiments, an angle motor combined with a conventional reducer can also be used to achieve the direction of transmission.

[0024] The frame 5 is a rectangular cubic structure welded from square tubing, and its exterior is covered with sheet metal. The seat 6 is fixed to one end of the frame 5. In this embodiment, the motor 1 is located below the seat 6; in other embodiments, the motor 1 may be located opposite the seat 6.

[0025] In this embodiment, the synchronous belt pulley mechanism 4 is located inside the frame 5. The driving pulley end of the synchronous belt pulley mechanism 4 is sleeved on the rotating shaft 3, and the driven pulley end of the synchronous belt pulley mechanism 4 is located at the other end inside the frame 5. The pedal 7 is fixed to the synchronous belt of the synchronous belt pulley mechanism 4.

[0026] like Figure 3 , 4 As shown in Figure 5, in order to improve the heat dissipation effect, this embodiment also includes a liquid cooling chamber 20, a circulating pump, a liquid cooling box 18, and a fan 19.

[0027] The transmission part of motor 1 is located inside and fixed to the liquid cooling chamber 20. The circulating pump drives the coolant to circulate through the liquid cooling tank 18 and the liquid cooling chamber 20. There are two sets of fans 19 located on both sides of the liquid cooling chamber 20. One set blows air into the liquid cooling chamber 20, and the other set draws air into the liquid cooling chamber 20. The two sets of fans 19 achieve heat dissipation and cooling of the liquid cooling chamber 20.

[0028] Furthermore, it also includes a base plate 8, a top plate 9, and side plates 10. Two side plates 10 are provided and are erected parallel to each other between the base plate 8 and the top plate 9. The two side plates 10, the base plate 8, and the top plate 9 form a cavity, which can be used to house electrical components such as control boards. A fan 19 is fixed to one of the side plates 10, and this side plate 10 has a ventilation opening corresponding to the fan 19. A second fan 11 is provided on the other side plate 10. The airflow direction of the second fan 11 is the same as that of the opposite fan 19. Thus, when the second fan 11 blows air, it directs the heat from the electrical components in the cavity towards the liquid cooling box 18, improving the heat dissipation effect of the electrical components.

[0029] To enable the pedal 7 to move back and forth in a relatively central position, this embodiment also includes a second synchronous belt pulley mechanism 13. The output end of the reducer 2 is connected to the driving pulley end of the second synchronous belt pulley mechanism 13, and the driven pulley end of the second synchronous belt pulley mechanism 13 is connected to one end of the rotating shaft 3. The other end of the rotating shaft 3 is connected to the driving pulley of the first synchronous belt pulley mechanism 4. In other embodiments, the second synchronous belt pulley mechanism 13 may be omitted, and the drive device may be directly connected to the first synchronous belt pulley mechanism 4. With the second synchronous belt pulley mechanism 13 included in this embodiment, the synchronous belt of the first synchronous belt pulley mechanism 4 can be positioned in the exact center of the frame 5, making the overall structure more coordinated and the center of gravity more stable.

[0030] In this embodiment, the liquid cooling chamber 20 is fixed to the base plate 8. Furthermore, a vertical plate 12 is provided, erected on the top plate 9. A rotating shaft 3 is rotatably mounted on the vertical plate 12; specifically, a bearing is installed in the vertical plate 12, through which the rotating shaft 3 passes and is fixed. The driving pulley of the first synchronous belt pulley mechanism 4 and the driven pulley of the second synchronous belt pulley mechanism 13 are mounted on the rotating shaft 3, with the driving pulley of the second synchronous belt pulley mechanism 13 mounted on the output end of the reducer 2. This integrates the entire motor drive system, facilitating modular disassembly and installation.

[0031] To improve the stability of the pedal 7's movement, this embodiment also includes a slide rail 14 and a slider 15. The slide rail 14 is mounted on the frame 5 and parallel to the synchronous belt pulley mechanism 4. The slider 15 is mounted on the slide rail 14 and connects to the pedal 7. Specifically, this embodiment uses two slide rails 14, located on opposite sides of the frame 5. Two sets of sliders 15 are provided, with two sliders in each set. The two sets of sliders 15 are respectively engaged on the two slide rails 14, allowing the sliders 15 to slide back and forth on the slide rails 14. In other embodiments, each set may refer to one or other numbers of sliders.

[0032] This embodiment also includes a base 16 and a support plate 17. The two ends of the base 16 are fixed to two sets of sliders 15, and the middle of the base 16 is fixed to the synchronous belt of the synchronous belt pulley mechanism 4. Two support plates 17 are erected on the base 16, each corresponding to one of the two sets of sliders 15. Two pedals 7 are provided and are perpendicularly fixed to the two support plates 17. In other embodiments, the support plates 17 may be omitted, and the pedals 7 may be directly erected on the base 16. The support plates 17 improve the force distribution on the pedals 7.

[0033] Furthermore, a pressure sensor 21 is provided between the pedal 7 and the support plate 17. The pressure sensor 21 can be used to detect the magnitude of the force exerted by the legs against the pedal 7 under the drive of the motor 1.

[0034] It should be noted that the descriptions of directions such as up, down, and vertical in this application are all based on the accompanying drawings in the specification, and are only for the purpose of more intuitively describing the technical solution, and do not imply any limitation on the scope of protection.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A lower limb pedaling isokinetic testing and evaluation device, characterized in that, Includes frame, drive unit, rotating shaft, synchronous belt pulley mechanism, seat and pedals; The drive unit is located at one end of the frame, and the drive unit drives the rotating shaft to rotate around its axis. The driving pulley end of the synchronous belt pulley mechanism is sleeved on the rotating shaft, and the driven pulley end of the synchronous belt pulley mechanism is located at the other end of the frame; the seat is fixed on the frame and located at one end of the synchronous belt pulley mechanism. The pedal is fixed to the synchronous belt of the synchronous belt pulley mechanism.

2. The lower limb pedaling isokinetic testing and evaluation device according to claim 1, characterized in that, The drive unit includes a motor and a reducer, wherein the motor is a rotary motor or the reducer is a rotary reducer. The motor is erected at the bottom of the frame, and the output end of the motor is connected to the input end of the reducer.

3. The lower limb pedaling isokinetic testing and evaluation device according to claim 2, characterized in that, It also includes a liquid cooling chamber, a circulating pump, a liquid cooling box, and a fan; the transmission part of the motor is located inside the liquid cooling chamber; the circulating pump drives the coolant to circulate through the liquid cooling box and the liquid cooling chamber; the fan has two sets and is located on both sides of the liquid cooling chamber, one set blows air into the liquid cooling chamber and the other set draws air into the liquid cooling chamber.

4. The lower limb pedaling isokinetic testing and evaluation device according to claim 3, characterized in that, It includes a base plate, a top plate, and side plates; there are two side plates, which are erected in parallel between the base plate and the top plate; one set of fans is fixed on one of the side plates and the side plate has a vent corresponding to the fan; the other side plate has a second fan, and the air blowing direction of the second fan is the same as that of the fan opposite it; the motor is fixed on the base plate.

5. The lower limb pedaling isokinetic testing and evaluation device according to claim 4, characterized in that, It also includes a vertical plate; the vertical plate is erected on the top plate; and the rotating shaft is rotatably connected to the vertical plate.

6. The lower limb pedaling isokinetic testing and evaluation device according to claim 1, characterized in that, It also includes a second synchronous belt pulley mechanism, the output end of which is connected to the driving pulley end of the second synchronous belt pulley mechanism; the driven pulley end of the second synchronous belt pulley mechanism is connected to the rotating shaft.

7. The lower limb pedaling isokinetic testing and evaluation device according to claim 1, characterized in that, It also includes a slide rail and a slider; the slide rail is mounted on the frame and is parallel to the synchronous belt pulley mechanism; the slider is mounted on the slide rail; the slider is connected to the pedal.

8. The lower limb pedaling isokinetic testing and evaluation device according to claim 7, characterized in that, There are two slide rails, located on both sides of the synchronous belt pulley mechanism; there are two sets of sliders, each locked onto one of the two slide rails.

9. A lower limb pedaling isokinetic testing and evaluation device according to claim 8, characterized in that, It also includes a base and a support plate; the two ends of the base are fixed to two sets of sliders respectively, and the middle of the base is fixed to the synchronous belt of the synchronous belt pulley mechanism; there are two support plates, which are respectively erected on the base corresponding to the two sets of sliders; there are two pedals, which are respectively fixed to the two support plates.

10. A lower limb pedaling isokinetic testing and evaluation device according to claim 9, characterized in that, A pressure sensor is installed between the pedal and the support plate.

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