Multifunctional track and field training device for physical education

Abstract

The invention relates to the field of physical training, in particular to a multifunctional track and field training device for physical education, which comprises a track assembly, a driving assembly mounted on the track assembly, a traction assembly mounted on the driving assembly and a pedal assembly mounted on the traction assembly, the driving assembly is used for driving the traction assembly and the corresponding pedal assembly to move on the track assembly, and the traction assembly is used for fixing the pedal assembly to any position on the track assembly; the track assembly is provided with a first transmission assembly, and the output end of the first transmission assembly is provided with a measuring assembly. By means of the measuring assembly integrated on the starting block, the distance between the starting block and the starting line can be measured when the starting block is installed, under long-term use, it can be guaranteed that the starting block is installed at the same position when training is conducted every time compared with the mode that the starting block is installed with a foot as a measuring reference, and the training efficiency is improved. The long-term muscle memory of athletes is favorably cultivated, and the training level is improved.

Description

Technical Field

[0001] The present invention relates to the field of sports training, in particular to a multifunctional track and field training device for physical education. Background Art

[0002] "Starting blocks", also called treadmills, are sports equipment that serve as support when running, helping athletes complete the starting task in the shortest time and increase their starting speed. In running training, the starting blocks are set up in different ways according to the training habits and body shapes of the athletes. There are ordinary, approach and extended types. These settings are mainly based on the difference in the front and back distance between the two footrests. In addition, the footrests also have the function of adjusting the inclination according to the starting habits, so the starting blocks used in track and field training are now adjustable structures.

[0003] When installing starting blocks nowadays, the user uses the sole of the foot as a reference to measure the distance between the starting block and the starting line (the starting block is usually installed 15 cm from the starting line, which is half the length of the sole of the foot). However, this measurement and installation method is very inaccurate. There will be slight deviations when installing the starting block before each training session. Although the deviation is not large, for professional track and field athletes, it will affect the athlete's muscle memory in long-term training and is not conducive to training improvement. If additional measuring tools are used to assist in installation, it is inconvenient to carry them with the starting block, and the measuring tools are easy to lose after installation.

[0004] Therefore, based on the above problems, a starting block with a built-in measuring mechanism can be designed, which is used to measure and calibrate the relative position of the starting block and the starting line before installing and fixing the starting block. The installation is more accurate, and the starting block can be carried together with the starting block, which is easy to use and not easy to lose. Summary of the Invention

[0005] In order to overcome the problem that athletes currently install starting blocks using their own feet as a measurement reference, the installation position is inaccurate, which affects the long-term training effect.

[0006] The technical solution of the present invention is: a multifunctional track and field training device for physical education, comprising a track assembly, a drive assembly installed on the track assembly, a traction assembly installed on the drive assembly, and a pedal assembly installed on the traction assembly, the drive assembly being used to drive the traction assembly and the corresponding pedal assembly to move on the track assembly, and the traction assembly being used to fix the pedal assembly at any position on the track assembly; a No. 1 transmission assembly is installed on the track assembly, a measuring assembly is installed on the output end of the No. 1 transmission assembly, the input end of the No. 1 transmission assembly is connected to the output end of the drive assembly, and the No. 1 transmission assembly is used to drive the measuring assembly to move in a vertical direction; a locking position is provided at one end of the track assembly and an unlocking position is provided at the other end, a cavity is provided on the track assembly, when the pedal assembly moves to the locking position, the measuring assembly is in the cavity; when the pedal assembly moves to the unlocking position, the measuring assembly extends from the cavity.

[0007] Preferably, the track assembly includes a rail, a slide groove opened on the rail and a plurality of slots. The slots on the same side of the rail are connected to the adjacent slide grooves. The traction assembly can move along the slide groove between the locked position and the unlocked position. The positioning assembly limits the traction assembly through the slots and fixes the pedal assembly at the corresponding slots.

[0008] Preferably, the drive assembly includes a No. 1 motor mounted on the rail, a plurality of transmission gears movably connected to the rail, a chain meshingly connected to the transmission gear, a transmission shaft fixedly mounted on the output end of the No. 1 motor, a transmission gear and a transmission plate fixedly mounted on the transmission shaft, one of the transmission gears being fixed on the output end of the No. 1 motor, the No. 1 motor being used to drive the corresponding transmission gear, transmission shaft, transmission gear and transmission plate to rotate on the same axis, the transmission gear being used to drive the chain transmission, the traction assembly being mounted on the chain, and the chain being used to drive the traction assembly to move.

[0009] Preferably, the traction assembly includes an anchoring platform fixedly connected to the chain, a slider fixedly connected to the anchoring platform, an adjusting seat fixedly installed on the slider, a block movably connected in the adjusting seat, a primary signal module installed on the block, a No. 2 motor installed on the anchoring platform, a No. 1 flat gear installed on the output end of the No. 2 motor, a No. 2 flat gear movably connected to the adjusting seat and a No. 1 stud fixedly connected to the No. 2 flat gear, the slider movably connected in the slide groove, the block threadedly connected to the No. 1 stud, the No. 1 flat gear meshes with the No. 2 flat gear, the No. 2 motor is used to drive the No. 1 flat gear to rotate, the No. 1 flat gear is used to drive the No. 2 flat gear and the No. 1 stud to rotate, and the No. 1 stud is used to drive the block to move in the vertical direction; when the block moves upward, the block enters the corresponding slot; when the block moves downward, the block enters the adjusting seat.

[0010] Preferably, the pedal assembly includes a base and side plates fixedly connected to the anchor platform, a plurality of pin holes provided on the side plates, a pedal movably connected to the base, a shield installed between the pedal and the base, a No. 3 motor installed on the pedal, a No. 1 bevel gear fixedly connected to the output end of the No. 3 motor, a secondary signal module installed on the No. 1 bevel gear, a No. 2 bevel gear movably connected to the pedal, a screw threadedly connected to the No. 2 bevel gear and a pin fixedly connected to the screw, the No. 3 motor is used to drive the No. 1 bevel gear to rotate, the No. 1 bevel gear is meshed with the No. 2 bevel gear, the No. 1 bevel gear is used to drive the No. 2 bevel gear to rotate, the No. 2 bevel gear is used to drive the screw to move along its own rotation axis, and the screw is used to drive the pin to enter or out of the corresponding pin hole; when the pin enters the corresponding pin hole, the pedal is fixed at the corresponding inclination, and the secondary signal module sends a signal to the control unit of the No. 2 motor.

[0011] Preferably, the first-level signal module includes a signal spring connected to the card block at one end and a tension sensor installed at the other end of the signal spring, the tension sensor is installed in the adjustment seat, and the tension sensor is used to detect the tension value of the signal spring and send a signal to the control unit of the No. 2 motor; when the slider moves upward until it enters the corresponding card slot, the tension sensor detects that the tension value of the signal spring reaches the threshold F1; when the slider moves downward until it enters the adjustment seat, the tension sensor detects that the tension value of the signal spring reaches the threshold F2; the second-level signal module includes a signal torsion spring connected to the No. 1 bevel gear at one end and a torque sensor installed at the other end of the signal torsion spring, the torque sensor is installed on the pedal, and the torque sensor is used to detect the torque value of the signal torsion spring; when the bayonet enters the corresponding pin hole, the torque sensor detects that the torque value of the signal torsion spring reaches the threshold F3; when the bayonet comes out of the corresponding pin hole, the torque sensor detects that the torque value of the signal torsion spring reaches the threshold F4.

[0012] Preferably, the measuring assembly includes a sliding post movably connected to the rail, a measuring arm movably connected to the sliding post at one end, a No. 1 torsion spring connected between the sliding post and the measuring arm, an axle head fixedly mounted on the other end of the sliding post, a measuring ruler movably connected to the axle head at one end, and a No. 2 torsion spring connected between the axle head and the measuring ruler; when the measuring assembly is extended from the cavity, the No. 1 torsion spring pulls the measuring arm to rotate around the sliding post, and the No. 2 torsion spring pulls the measuring ruler to rotate around the axle head.

[0013] Preferably, the No. 1 transmission assembly includes a No. 3 bevel gear movably connected to the rail, a turntable fixedly connected to the No. 3 bevel gear, a No. 4 bevel gear movably connected to the rail, a No. 2 stud threadedly connected to the No. 4 bevel gear and a linkage arm with one end movably connected to the eccentric position of the turntable, the other end of the linkage arm movably connected to the eccentric position of the transmission disk, and the transmission disk drives the turntable and No. 3 bevel gear to rotate through the linkage arm, and the No. 3 bevel gear is meshed with the No. 4 bevel gear, and the No. 3 bevel gear is used to drive the No. 4 bevel gear to rotate, and the No. 4 bevel gear is used to drive the No. 2 stud to move in the vertical direction, and the sliding column is fixedly installed on the upper end of the No. 2 stud; when the pedal assembly moves to the locking position, the No. 2 stud moves downward to the preset value H1, and the measuring arm and the measuring ruler are in the cavity; when the pedal assembly moves to the unlocking position, the No. 2 stud moves upward to the preset value H2, and the measuring arm and the measuring ruler extend out of the cavity.

[0014] Preferably, a No. 2 transmission assembly and an air supply assembly are installed on the track assembly, the input end of the No. 2 transmission assembly is connected to the output end of the drive assembly, the No. 2 transmission assembly is used to drive the gas into or out of the air supply assembly, and the air supply assembly is used to transport the gas to the pedal assembly.

[0015] Preferably, the No. 2 transmission assembly includes a No. 3 flat gear and a No. 4 flat gear movably connected to the rail and a rocker arm with one end movably connected to the eccentric position of the No. 4 flat gear. The No. 3 flat gear is meshed with the corresponding transmission gear, and the No. 4 flat gear is meshed with the corresponding No. 3 flat gear. The transmission gear is used to drive the No. 3 flat gear to rotate, the No. 3 flat gear is used to drive the No. 4 flat gear to rotate, and the No. 4 flat gear is used to drive the rocker arm to swing; the air supply assembly includes an air cylinder installed on the rail, a plunger movably connected in the air cylinder, an air pipe connected to the air cylinder at one end and an air outlet fixedly connected to the other end of the air pipe. The other end of the rocker arm is movably connected to the plunger, and the rocker arm is used to drive the plunger to move along the central axis of the air cylinder. The air outlet is fixedly installed on the side panel, and the air cylinder inputs gas into the air outlet through the air pipe, and the air outlet is used to output gas to the pedal.

[0016] Beneficial effects of the present invention:

[0017] 1. The measuring component integrated into the starting block allows you to measure the distance of the starting block relative to the starting line when installing the starting block. With long-term use, compared to using the feet as a reference for installing the starting block, the starting block can be installed in the same position every time you train, which is conducive to cultivating long-term muscle memory and improving training level.

[0018] 2. The two measuring assemblies corresponding to the two pedal assemblies can not only measure the distance between the starting block and the starting line, but also measure the verticality of the two pedal assemblies relative to the starting line, further calibrating the installation accuracy of the starting block;

[0019] 2. The driving assembly outputs power to control the extension or retraction of the measuring assembly into the cavity, so that the measuring assembly can only be opened for installation and measurement when the pedal assembly is in the unlocked position. During the use of the starting block, the measuring assembly will not accidentally pop out, avoiding injuries to athletes;

[0020] 3. When not in use, the measuring component is completely retracted into the cavity and will not be exposed to the outside, which will not affect the athlete's start and will not be damaged by stress;

[0021] 4. The pedals and side panels are fixed simultaneously, as are the sliders and rails. The equipment is tested for proper installation by checking whether the sliders can move within the chute. This prevents one of the pedals or sliders from being unlocked, which could cause the pedal assembly to move due to the reverse force during the start, potentially causing injury to the athlete.

[0022] 5. The drive assembly outputs power, and with the help of the No. 2 transmission assembly, the air supply assembly is controlled to deliver air flow. While adjusting the pedal assembly, the pedals can be blown clean by wind. The athletes' shoes can also be cleaned by getting close to the pedals to remove some dirt and reduce the interference of dirt on the soles of the shoes and the friction between the pedals. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Shown is a schematic diagram of the three-dimensional structure of the multifunctional track and field training device for physical education of the present invention;

[0024] Figure 2 The multifunctional track and field training device for physical education of the present invention is shown. Figure 2 A in the middle is an enlarged schematic diagram of the structure;

[0025] Figure 3 Shown is a schematic diagram of the first cross-sectional structure of the multifunctional track and field training device for physical education of the present invention;

[0026] Figure 4 The multifunctional track and field training device for physical education of the present invention is shown. Figure 3 The enlarged structural diagram at B in the middle;

[0027] Figure 5 Shown is a schematic diagram of a second cross-sectional structure of the multifunctional track and field training device for physical education of the present invention;

[0028] Figure 6 The multifunctional track and field training device for physical education of the present invention is shown. Figure 5 The enlarged structural diagram at C in the middle;

[0029] Figure 7 Shown is a schematic diagram of the third cross-sectional structure of the multifunctional track and field training device for physical education of the present invention;

[0030] Figure 8 The multifunctional track and field training device for physical education of the present invention is shown. Figure 7 The enlarged structural diagram at D in the middle;

[0031] Figure 9 Shown is a schematic diagram of the fourth cross-sectional structure of the multifunctional track and field training device for physical education of the present invention;

[0032] Figure 10 The multifunctional track and field training device for physical education of the present invention is shown. Figure 9 The enlarged structural diagram at E in the middle;

[0033] Figure 11 Shown is a schematic diagram of the structure of the drive assembly and traction assembly of the multifunctional track and field training device for physical education of the present invention;

[0034] Figure 12 Shown is a schematic diagram of the structure of the pedal assembly, adjustment assembly and positioning assembly of the multifunctional track and field training device for physical education of the present invention;

[0035] Figure 13 Shown is a schematic diagram of the structure of the drive assembly and the first transmission assembly of the multifunctional track and field training device for physical education of the present invention;

[0036] Figure 14 Shown is a schematic diagram of the structure of the measuring component and the first transmission component of the multifunctional track and field training device for physical education of the present invention;

[0037] Figure 15 Shown is a schematic diagram of the structure of the air supply component and the second transmission component of the multifunctional track and field training device for physical education of the present invention.

[0038] Explanation of reference numerals: 101, rail; 102, slide; 103, locking position; 104, unlocking position; 105, slot; 106, cavity; 201, motor No. 1; 202, transmission gear; 203, chain; 204, transmission shaft; 205, transmission gear; 206, transmission plate; 301, anchoring platform; 302, slider; 303, adjustment seat; 304, block; 305, primary signal module; 401, base; 402, side plate; 403, pin hole; 404, pedal; 405, shield; 501, motor No. 3; 502, bevel gear No. 1; 503, secondary signal module; 504 , bevel gear No. 2; 505, screw; 506, bayonet; 601, sliding column; 602, measuring arm; 603, torsion spring No. 1; 604, shaft head; 605, measuring ruler; 606, torsion spring No. 2; 701, bevel gear No. 3; 702, rotary table; 703, bevel gear No. 4; 704, stud No. 2; 705, linkage arm; 801, air cylinder; 802, plunger; 803, air pipe; 804, air outlet duct; 901, flat gear No. 3; 902, flat gear No. 4; 903, rocker arm; 1001, motor No. 2; 1002, flat gear No. 1; 1003, flat gear No. 2; 1004, stud No. 1. DETAILED DESCRIPTION

[0039] The present invention will be further described below with reference to the accompanying drawings and examples.

[0040] See also Figures 1-15The present invention provides an embodiment: a multifunctional track and field training device for physical education, comprising a track assembly, a driving assembly installed on the track assembly, a traction assembly installed on the driving assembly, and a pedal assembly installed on the traction assembly, the driving assembly being used to drive the traction assembly and the corresponding pedal assembly to move on the track assembly, and the traction assembly being used to fix the pedal assembly at any position on the track assembly; a No. 1 transmission assembly is installed on the track assembly, a measuring assembly is installed on the output end of the No. 1 transmission assembly, the input end of the No. 1 transmission assembly is connected to the output end of the driving assembly, and the No. 1 transmission assembly is used to drive the measuring assembly to move in the vertical direction; a locking position 103 is provided at one end of the track assembly, and an unlocking position 104 is provided at the other end; a cavity 106 is provided on the track assembly, and when the pedal assembly moves to the locking position 103, the measuring assembly is in the cavity 106; when the pedal assembly moves to the unlocking position 104, the measuring assembly is calmly The user places the card rail 101 on the ground behind the starting line. At this time, both pedal assemblies are in the locked position 103. Then the driving assembly is started to control the traction assembly and the corresponding pedal assembly to move to the unlocked position 104. During the movement, the driving assembly also transmits power to the No. 1 transmission assembly, so that the No. 1 transmission assembly controls the measuring assembly to extend from the cavity 106. When the pedal assembly reaches the unlocked position 104, the measuring assembly is completely extended from the cavity 106 and opened. After the relative position of the track assembly and the starting line is corrected by the measuring assembly, the measuring assembly is retracted and the driving assembly is restarted to output power in the reverse direction to control the pedal assembly to move to any position except the locked position 103 and the unlocked position 104. The measuring assembly is retracted into the cavity 106. According to the user's own habits, the relative distance between the two pedal assemblies is adjusted, and then the traction assembly and the pedal assembly are fixed to the corresponding positions on the track assembly.

[0041] See also Figure 1 、 Figure 3-Figure 8 、 Figure 10-11 、 Figure 13 and Figure 15104 , the pedal assembly is fixed to the corresponding slot 105 . The movable plate 206 rotates on the same axis, the transmission gear 202 is used to drive the chain 203 for transmission, and the traction assembly is installed on the chain 203. The chain 203 is used to drive the traction assembly to move. The adjacent chains 203 and the slide 102 are in parallel with each other. Therefore, when the No. 1 motor 201 drives the transmission gear 202 to rotate and controls the chain 203 to transmit in one direction, the traction assembly also moves along the axis of the slide 102. The transmission shaft 204, the transmission gear 205 and the transmission plate 206 rotate synchronously with the transmission gear 202, and the transmission plate 206 outputs power to the No. 1 transmission assembly, which controls the measuring assembly to move up and down in the cavity 106. When it moves upward to the highest point, the measuring assembly extends from the cavity 106 (at this time, the pedal assembly and the traction assembly are driven to the unlocking position 104 by the chain 203). When it moves downward to the lowest point, the measuring assembly is completely retracted into the cavity 106 (at this time, the pedal assembly and the traction assembly are driven to the locking position 103 by the chain 203).

[0042] See also Figure 3-Figure 7 and Figures 9-12In this embodiment, the traction assembly includes an anchoring platform 301 fixedly connected to the chain 203, a slider 302 fixedly connected to the anchoring platform 301, an adjustment seat 303 fixedly installed on the slider 302, a clamping block 304 movably connected to the adjustment seat 303, a primary signal module 305 installed on the clamping block 304, a No. 2 motor 1001 installed on the anchoring platform 301, a No. 1 flat gear 1002 installed on the output end of the No. 2 motor 1001, a No. 2 flat gear 1003 movably connected to the adjustment seat 303, and a fixed The No. 1 stud 1004 is fixedly connected to the No. 2 flat gear 1003, the slider 302 is movably connected to the slide groove 102, the clamping block 304 is threadedly connected to the No. 1 stud 1004, the No. 1 flat gear 1002 is meshed with the No. 2 flat gear 1003, the No. 2 motor 1001 is used to drive the No. 1 flat gear 1002 to rotate, the No. 1 flat gear 1002 is used to drive the No. 2 flat gear 1003 and the No. 1 stud 1004 to rotate, and the No. 1 stud 1004 is used to drive the clamping block 304 to move in the vertical direction; when the clamping block 304 moves upward, the clamping block 304 enters the corresponding card slot 105; when the card block 304 moves downward, the card block 304 enters the adjustment seat 303, and the anchoring platform 301 can be assembled with the chain 203 by bolts or rivets. As the chain 203 is driven, the anchoring platform 301 moves synchronously with the transmission direction of the chain 203, so that the slider 302 moves to the appropriate position in the slide groove 102, and then the No. 2 motor 1001 is started to control the No. 1 flat gear 1002 to rotate. At the same time, through the meshing transmission effect, the No. 2 flat gear 1003 and the No. 1 stud 1 004 also rotates accordingly, and through the threaded transmission, the block 304 moves on the No. 1 stud 1004. When the block 304 enters the slot 105, a limit is formed, that is, the slider 302 is locked with the rail 101, so that the slider 302 cannot move along the slide groove 102. At this time, the pedal assembly can provide stable support for the athlete's foot. When the block 304 moves down and is stored in the adjustment seat 303, the limit with the slot 105 is released. At this time, the drive assembly can run again, and the control slider 302 moves to other positions along the slide groove 102.

[0043] See also Figure 1 、 Figure 3 、 Figure 5 、 Figure 7 and Figure 11-12In this embodiment, the pedal assembly includes a base 401 and a side plate 402 fixedly connected to the anchoring platform 301, a plurality of pin holes 403 provided on the side plate 402, a pedal 404 movably connected to the base 401, a shield 405 installed between the pedal 404 and the base 401, a third motor 501 installed on the pedal 404, a first bevel gear 502 fixedly connected to the output end of the third motor 501, a secondary signal module 503 installed on the first bevel gear 502, a second bevel gear 504 movably connected to the pedal 404, and a threaded The screw 505 connected to the second bevel gear 504 and the bayonet 506 fixedly connected to the screw 505, the third motor 501 is used to drive the first bevel gear 502 to rotate, the first bevel gear 502 is meshed with the second bevel gear 504, the first bevel gear 502 is used to drive the second bevel gear 504 to rotate, the second bevel gear 504 is used to drive the screw 505 to move along its own rotation axis, the screw 505 is used to drive the bayonet 506 to enter or out of the corresponding pin hole 403; when the bayonet 506 enters the corresponding pin hole 403, the pedal 404 is fixed At the corresponding slope, the secondary signal module 503 sends a signal to the control unit of the second motor 1001, and drives the anchoring platform 301 and the slider 302 to move the pedal assembly to the appropriate position through the chain 203, and then flips the pedal 404 upward to the appropriate slope, forming an angle between the pedal 404 and the base 401, and then starts the third motor 501 to control the rotation of the first bevel gear 502. Through the meshing transmission action, the second bevel gear 504 rotates synchronously, and the screw 505 threadedly connected to the second bevel gear 504 extends and the bayonet 506 is inserted The corresponding pin hole 403 locks the pedal 404 and the side plate 402, so that the pedal 404 remains at this inclination. At this time, the pedal 404 can provide stable support for the athlete's feet. When the No. 1 bevel gear 502 rotates, the secondary signal module 503 detects the signal generated by its rotation and sends it to the control unit of the No. 2 motor 1001. When the pin 506 enters the pin hole 403, the No. 2 motor 1001 is immediately started, and the control block 304 is raised to enter the slot 105, thereby realizing the synchronous locking of the pedal 404 and the base 401, and the slider 302 and the rail 101.

[0044] See also Figure 5-Figure 6 and Figure 11-12In this embodiment, the primary signal module 305 includes a signal spring with one end connected to the block 304 and a tension sensor installed at the other end of the signal spring. The tension sensor is installed in the adjustment seat 303. The tension sensor is used to detect the tension value of the signal spring and send a signal to the control unit of the second motor 1001. When the slider 302 moves upward until it enters the corresponding slot 105, the tension sensor detects that the tension value of the signal spring reaches the threshold value F1. When the slider 302 moves downward until it enters the adjustment seat 303, the tension sensor detects that the tension value of the signal spring reaches the threshold value F2. The secondary signal module 503 includes a signal torsion spring with one end connected to the first bevel gear 502 and a torque sensor installed at the other end of the signal torsion spring. The torque sensor is installed on the pedal 404. The torque sensor is used to detect the torque value of the signal torsion spring. When the bayonet 506 enters the corresponding pin hole 403, the torque sensor detects that the torque value of the signal torsion spring reaches the threshold value F3. When the bayonet 506 is released from the corresponding pin hole 403, the torque sensor detects the torque value of the signal torsion spring. When the threshold F4 is reached, the user starts the third motor 501, and the control pin 506 enters the pin hole 403, the pedal 404 is locked with the base 401, and the torque sensor first detects that the torque value of the signal torsion spring reaches F3, and the third motor 501 stops running. At the same time, the second motor 1001 starts, and the control block 304 moves upward into the slot 105, the slider 302 is locked with the rail 101, and the tension sensor detects that the tension value of the signal spring reaches F1, and the second motor 1001 stops running (at this time, the traction assembly and the pedal assembly are all in place, and the user A starting block can be used), the user restarts motor No. 3 501, and when the control pin 506 disengages from the pin hole 403, the pedal 404 and the base 401 are unlocked. The torque sensor first detects that the torque value of the signal torsion spring has reached F4, and motor No. 2 1001 is started again, and the control block 304 moves downward into the adjustment seat 303. The tension sensor detects that the tension value of the signal spring has reached F2, and motor No. 2 1001 stops running (at this time, the traction assembly and the pedal assembly are all unlocked, and the user can adjust the position and inclination of the pedal assembly at will).

[0045] See also Figure 1 、 Figure 3-Figure 5 、 Figure 7-Figure 8 、 Figure 12-13In this embodiment, the measuring assembly includes a slide post 601 movably connected to the rail 101, a measuring arm 602 movably connected to the slide post 601 at one end, a first torsion spring 603 connected between the slide post 601 and the measuring arm 602, a shaft head 604 fixedly mounted on the other end of the slide post 601, a measuring scale 605 movably connected to the shaft head 604 at one end, and a second torsion spring 606 connected between the shaft head 604 and the measuring scale 605; when the measuring assembly is extended from the cavity 106, the first torsion spring 603 pulls the measuring arm 602 to rotate around the slide post 601, and the second torsion spring 606 pulls the measuring scale 605 to rotate around the shaft head 604; the first transmission assembly includes a third bevel gear 7 movably connected to the rail 101 01. The rotary disk 702 is fixedly connected to the No. 3 bevel gear 701, the No. 4 bevel gear 703 is movably connected to the rail 101, the No. 2 stud 704 is threadedly connected to the No. 4 bevel gear 703, and one end of the linkage arm 705 is movably connected to the eccentric position of the rotary disk 702. The other end of the linkage arm 705 is movably connected to the eccentric position of the transmission disk 206. The transmission disk 206 drives the rotary disk 702 and the No. 3 bevel gear 701 to rotate through the linkage arm 705. The No. 3 bevel gear 701 is meshed with the No. 4 bevel gear 703. The No. 3 bevel gear 701 is used to drive the No. 4 bevel gear 703 to rotate. The No. 4 bevel gear 703 is used to drive the No. 2 stud 704 to move in the vertical direction. The sliding column 601 is fixed Installed on the upper end of the No. 2 stud 704; when the pedal assembly moves to the locked position 103, the No. 2 stud 704 moves downward to the preset value H1, and the measuring arm 602 and the measuring ruler 605 are in the cavity 106; when the pedal assembly moves to the unlocked position 104, the No. 2 stud 704 moves upward to the preset value H2, and the measuring arm 602 and the measuring ruler 605 extend out of the cavity 106. During the transmission process of the chain 203, the transmission disk 206 always drives the linkage arm 705 to swing, and drives the No. 3 bevel gear 701 and the rotary disk 702 to rotate at a preset speed through the swinging force. Under the action of the meshing transmission, the No. 4 bevel gear 703 is also driven to rotate by the No. 3 bevel gear 701, driving the No. 2 stud 704 to move vertically. When the pedal assembly moves from the locked position 103 to the unlocked position 104, the second stud 704 moves upward until it reaches the preset value H2 (the pedal assembly enters the unlocked position 104). At this time, the height of the measuring arm 602 and the measuring ruler 605 is higher than the cavity 106. Under the elastic recovery action of the first torsion spring 603 and the second torsion spring 606, the measuring arm 602 and the measuring ruler 605 automatically flip open, so that the measuring ruler 605 and the adjacent pedal 404 are on the same parallel line. The measuring ruler 605 is aligned with the starting line to determine the distance between the rail 101 and the starting line and the verticality of the two pedal assemblies to the starting line (determined by the difference in the readings on the two measuring rulers 605 corresponding to the starting line position, which is generally controlled to be 0.5cm or less), manually rotate the measuring arm 602 and measuring ruler 605 into a straight line. As the pedal assembly moves from the unlocked position 104 to the locked position 103, the second stud 704 moves downward until it reaches the preset value H1 (the pedal assembly enters the locked position 103). The folded measuring arm 602 and measuring ruler 605 now enter the cavity 106, where the side walls of the cavity 106 overcome the elastic forces of the first and second torsion springs 603 and 606, limiting the measuring arm 602 and measuring ruler 605. (In actual use, the measuring arm 602 and measuring ruler 605 can also be automatically folded or unfolded electronically, for example, by triggering a contact switch when the slider 302 enters the unlocked position 104 or locked position 103, respectively.)

[0046] See also Figure 1-Figure 3 、 Figure 5 、 Figures 9-11 、 Figure 13 and Figure 15In this embodiment, a No. 2 transmission assembly and an air supply assembly are installed on the track assembly. The input end of the No. 2 transmission assembly is connected to the output end of the drive assembly. The No. 2 transmission assembly is used to drive the gas to flow into or out of the air supply assembly, and the air supply assembly is used to deliver the gas to the pedal assembly; the No. 2 transmission assembly includes a No. 3 flat gear 901 and a No. 4 flat gear 902 movably connected to the rail 101, and a rocker arm 903 with one end movably connected to the eccentric position of the No. 4 flat gear 902. The No. 3 flat gear 901 is meshed with the corresponding transmission gear 205, and the No. 4 flat gear 902 is meshed with the corresponding No. 3 flat gear 901 , the transmission gear 205 is used to drive the No. 3 flat gear 901 to rotate, the No. 3 flat gear 901 is used to drive the No. 4 flat gear 902 to rotate, and the No. 4 flat gear 902 is used to drive the rocker arm 903 to swing; the air supply assembly includes an air cylinder 801 installed on the rail 101, a plunger 802 movably connected to the air cylinder 801, an air pipe 803 connected to the air cylinder 801 at one end, and an air outlet 804 fixedly connected to the other end of the air pipe 803, the other end of the rocker arm 903 is movably connected to the plunger 802, the rocker arm 903 is used to drive the plunger 802 to move along the central axis of the air cylinder 801, and the air outlet 804 is fixedly mounted on the side On the board 402, the air cylinder 801 inputs the gas into the air outlet 804 through the air pipe 803, and the air outlet 804 is used to output the gas to the pedal 404. Before the starting block is installed, the pedal assembly is in the locked position 103. When measuring the installation position, the pedal assembly must first be driven from the locked position 103 to the unlocked position 104 by the chain 203 in the drive assembly. During this movement, the transmission gear 205 outputs power to the third flat gear 901 through the meshing transmission action, and the third flat gear 901 outputs power to the fourth flat gear 902. When the fourth flat gear 902 rotates, the rocker arm 903 continuously rotates. The reciprocating swing causes the plunger 802 to squeeze out the gas in the air cylinder 801, which enters the air outlet 804 through the air supply pipe 803 and is then blown to the corresponding pedal 404 by the air outlet 804 to remove dust by wind. When the pedal assembly moves from the unlocked position 104 to the locked position 103, the air outlet 804 will also blow the pedal 404 by wind (during the reciprocating movement of the pedal assembly along the rail 101, the air cylinder 801 outputs gas multiple times, that is, when the user adjusts the position of the pedal assembly, the air cylinder 801 cooperates with the air outlet 804 to blow and clean the pedal 404 more than once).

Claims

1. A multifunctional track and field training device for physical education, characterized by: The vehicle comprises a track assembly, a driving assembly mounted on the track assembly, a traction assembly mounted on the driving assembly, and a pedal assembly mounted on the traction assembly, wherein the driving assembly is used to drive the traction assembly and the corresponding pedal assembly to move on the track assembly, and the traction assembly is used to fix the pedal assembly at any position on the track assembly; A No. 1 transmission assembly is installed on the track assembly, a measuring assembly is installed on the output end of the No. 1 transmission assembly, the input end of the No. 1 transmission assembly is connected to the output end of the drive assembly, and the No. 1 transmission assembly is used to drive the measuring assembly to move in the vertical direction; A locking position (103) is provided at one end of the track assembly, and an unlocking position (104) is provided at the other end. A cavity (106) is provided on the track assembly. When the pedal assembly moves to the locking position (103), the measuring assembly is in the cavity (106); when the pedal assembly moves to the unlocking position (104), the measuring assembly extends from the cavity (106).

2. A multifunctional track and field training device for physical education according to claim 1, characterized in that: The track assembly comprises a rail (101), a chute (102) and a plurality of slots (105) provided on the rail (101). The slots (105) on the same side of the rail (101) are connected to adjacent slots (102). The traction assembly can move along the chute (102) between a locking position (103) and an unlocking position (104). The positioning assembly limits the traction assembly through the slots (105) and fixes the pedal assembly at the corresponding slots (105).

3. The multifunctional track and field training device for physical education according to claim 2, characterized in that: The driving assembly comprises a No. 1 motor (201) mounted on the rail (101), a plurality of transmission gears (202) movably connected to the rail (101), a chain (203) meshedly connected to the transmission gear (202), a transmission shaft (204) fixedly mounted on the output end of the No. 1 motor (201), a transmission gear (205) fixedly mounted on the transmission shaft (204), and a transmission disk (206), wherein one transmission gear (202) is fixed on the output end of the No. 1 motor (201), the No. 1 motor (201) is used to drive the corresponding transmission gear (202), the transmission shaft (204), the transmission gear (205), and the transmission disk (206) to rotate on the same axis, the transmission gear (202) is used to drive the chain (203) to transmit, the traction assembly is mounted on the chain (203), and the chain (203) is used to drive the traction assembly to move.

4. The multifunctional track and field training device for physical education according to claim 3, characterized in that: The traction assembly comprises an anchoring platform (301) fixedly connected to a chain (203), a slider (302) fixedly connected to the anchoring platform (301), an adjustment seat (303) fixedly mounted on the slider (302), a clamping block (304) movably connected to the adjustment seat (303), a primary signal module (305) mounted on the clamping block (304), a No. 2 motor (1001) mounted on the anchoring platform (301), a No. 1 flat gear (1002) mounted on the output end of the No. 2 motor (1001), a No. 2 flat gear (1003) movably connected to the adjustment seat (303), and a No. 3 flat gear (1004) mounted on the output end of the No. 3 flat gear (1005). 3) and a No. 1 stud (1004) fixedly connected to the No. 2 flat gear (1003), the slider (302) is movably connected to the slide groove (102), the clamping block (304) is threadedly connected to the No. 1 stud (1004), the No. 1 flat gear (1002) is meshed with the No. 2 flat gear (1003), the No. 2 motor (1001) is used to drive the No. 1 flat gear (1002) to rotate, the No. 1 flat gear (1002) is used to drive the No. 2 flat gear (1003) and the No. 1 stud (1004) to rotate, and the No. 1 stud (1004) is used to drive the clamping block (304) to move in the vertical direction; When the clamping block (304) moves upward, the clamping block (304) enters the corresponding clamping slot (105); when the clamping block (304) moves downward, the clamping block (304) enters the adjustment seat (303).

5. The multifunctional track and field training device for physical education according to claim 4, characterized in that: The pedal assembly comprises a base (401) and a side plate (402) fixedly connected to the anchoring platform (301), a plurality of pin holes (403) provided on the side plate (402), a pedal (404) movably connected to the base (401), a shield (405) installed between the pedal (404) and the base (401), a third motor (501) installed on the pedal (404), a first bevel gear (502) fixedly connected to the output end of the third motor (501), a secondary signal module (503) installed on the first bevel gear (502), and a second signal module (503) movably connected to the pedal (404). A second bevel gear (504), a screw (505) threadedly connected to the second bevel gear (504), and a bayonet (506) fixedly connected to the screw (505), a third motor (501) is used to drive the first bevel gear (502) to rotate, the first bevel gear (502) is meshed with the second bevel gear (504), the first bevel gear (502) is used to drive the second bevel gear (504) to rotate, the second bevel gear (504) is used to drive the screw (505) to move along its own rotation axis, and the screw (505) is used to drive the bayonet (506) to enter or escape from the corresponding pin hole (403); When the latch (506) enters the corresponding pin hole (403), the pedal (404) is fixed at the corresponding slope, and the secondary signal module (503) sends a signal to the control unit of the second motor (1001).

6. The multifunctional track and field training device for physical education according to claim 5, characterized in that: The first-level signal module (305) includes a signal spring connected to the clamping block (304) at one end and a tension sensor installed at the other end of the signal spring. The tension sensor is installed in the adjustment seat (303). The tension sensor is used to detect the tension value of the signal spring and send a signal to the control unit of the second motor (1001); When the slider (302) moves upward until it enters the corresponding slot (105), the tension sensor detects that the tension value of the signal spring reaches a threshold value F1; when the slider (302) moves downward until it enters the adjustment seat (303), the tension sensor detects that the tension value of the signal spring reaches a threshold value F2; The secondary signal module (503) includes a signal torsion spring connected to the first bevel gear (502) at one end and a torque sensor installed at the other end of the signal torsion spring, the torque sensor being installed on the pedal (404) and being used to detect the torque value of the signal torsion spring; When the bayonet (506) enters the corresponding pin hole (403), the torque sensor detects that the torque value of the signal torsion spring reaches a threshold value F3; when the bayonet (506) escapes from the corresponding pin hole (403), the torque sensor detects that the torque value of the signal torsion spring reaches a threshold value F4.

7. The multifunctional track and field training device for physical education according to claim 6, characterized in that: The measuring assembly comprises a sliding post (601) movably connected to the rail (101), a measuring arm (602) movably connected to the sliding post (601) at one end, a first torsion spring (603) connected between the sliding post (601) and the measuring arm (602), a shaft head (604) fixedly mounted on the other end of the sliding post (601), a measuring ruler (605) movably connected to the shaft head (604) at one end, and a second torsion spring (606) connected between the shaft head (604) and the measuring ruler (605); When the measuring assembly extends from the cavity (106), the first torsion spring (603) pulls the measuring arm (602) to rotate around the sliding column (601), and the second torsion spring (606) pulls the measuring ruler (605) to rotate around the shaft head (604).

8. The multifunctional track and field training device for physical education according to claim 7, characterized in that: The first transmission assembly includes a third bevel gear (701) movably connected to the rail (101), a rotary disk (702) fixedly connected to the third bevel gear (701), a fourth bevel gear (703) movably connected to the rail (101), a second stud (704) threadedly connected to the fourth bevel gear (703), and a linkage arm (705) movably connected to the eccentric position of the rotary disk (702) at one end, and the other end of the linkage arm (705) movably connected to the transmission disk. (206) is in the eccentric position, the transmission disc (206) drives the rotary disc (702) and the third bevel gear (701) to rotate through the linkage arm (705), the third bevel gear (701) is meshed with the fourth bevel gear (703), the third bevel gear (701) is used to drive the fourth bevel gear (703) to rotate, the fourth bevel gear (703) is used to drive the second stud (704) to move in the vertical direction, and the sliding column (601) is fixedly mounted on the upper end of the second stud (704); When the pedal assembly moves to the locked position (103), the second stud (704) moves downward to the preset value H1, and the measuring arm (602) and the measuring ruler (605) are in the cavity (106); when the pedal assembly moves to the unlocked position (104), the second stud (704) moves upward to the preset value H2, and the measuring arm (602) and the measuring ruler (605) extend out of the cavity (106).

9. The multifunctional track and field training device for physical education according to claim 8, characterized in that: The track assembly is equipped with a No. 2 transmission assembly and an air supply assembly. The input end of the No. 2 transmission assembly is connected to the output end of the drive assembly. The No. 2 transmission assembly is used to drive the gas into or out of the air supply assembly, and the air supply assembly is used to transport the gas to the pedal assembly.

10. The multifunctional track and field training device for physical education according to claim 9, characterized in that: The second transmission assembly includes a third flat gear (901) and a fourth flat gear (902) movably connected to the rail (101) and a rocker arm (903) with one end movably connected to the eccentric position of the fourth flat gear (902), the third flat gear (901) is meshed with the corresponding transmission gear (205), the fourth flat gear (902) is meshed with the corresponding third flat gear (901), the transmission gear (205) is used to drive the third flat gear (901) to rotate, the third flat gear (901) is used to drive the fourth flat gear (902) to rotate, and the fourth flat gear (902) is used to drive the rocker arm (903) to swing; The air supply assembly comprises an air cylinder (801) mounted on a rail (101), a plunger (802) movably connected to the air cylinder (801), an air delivery pipe (803) connected at one end to the air cylinder (801), and an air outlet duct (804) fixedly connected to the other end of the air delivery pipe (803). The other end of a rocker arm (903) is movably connected to the plunger (802). The rocker arm (903) is used to drive the plunger (802) to move along the central axis of the air cylinder (801). The air outlet duct (804) is fixedly mounted on the side plate (402). The air cylinder (801) inputs gas into the air outlet duct (804) through the air delivery pipe (803). The air outlet duct (804) is used to output gas to the pedal (404).

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