A track bicycle forced sprint training device

Abstract

The present invention discloses a track bicycle forced sprint training device, comprising a base, a frame fixedly connected to the upper end of the base, a vertical rod and a seat fixedly installed on the upper end of the frame from left to right in sequence, a handlebar fixedly connected to the front and rear sides of the vertical rod correspondingly, a first sprocket installed on the frame, a generator fixedly installed on the upper end of the base and on the right side of the frame, a driving end of the generator fixedly connected to a driving rod, a second sprocket rotatably connected to the driving rod, a chain is commonly sleeved between the first sprocket and the second sprocket, a slot is provided at the front end of the second sprocket, and the front end of the driving rod extends into the slot. The advantages are: the generator is used as a load for sprint training, and the wind generated by the fan is used to simulate the sprint, so that the training is more realistic and effective, and the dead flywheel structure can be released when the athlete's body suddenly develops, so that the training device stops safely.

Description

Technical Field

[0001] The invention relates to the technical field of sports training equipment, and in particular to a track bicycle forced sprint training equipment. Background Art

[0002] Track cycling is a cycling sport performed in a dedicated venue and is listed as an Olympic event. The bicycles used in track cycling competitions are only equipped with single-speed gears, no brakes, and a fixed flywheel, just to pursue faster speeds.

[0003] There are long-distance and short-distance races in track cycling competitions, which test the athletes' sprinting ability. Therefore, during training, sprint training equipment is used to focus on strengthening the athletes' sprinting ability. In current sprint training equipment, athletes usually train their sprinting ability by pedaling a simulated bicycle in place. The movement in place does not produce wind resistance, which is different from the environment felt during the competition, which in turn affects the athletes' performance during the competition. In addition, this simulated bicycle needs to be installed with a fixed flywheel like a track bicycle. When the athlete's training intensity is too high and certain problems occur in the body's muscles, the pedaling movement cannot be stopped in time, which in turn damages the athlete's body.

[0004] In order to solve the above problems, we proposed a track bicycle forced sprint training device. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the background technology and to propose a track bicycle forced sprint training device.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a field bicycle forced sprint training equipment, including a base, the upper end of the base is fixedly connected to the frame, the upper end of the frame is fixedly installed with a vertical rod and a seat from left to right in sequence, the front and rear sides of the vertical rod are correspondingly fixedly connected to the handlebars, the frame is installed with a first sprocket, a generator is fixedly installed at the upper end of the base and at the right side of the frame, the driving end of the generator is fixedly connected to a driving rod, the driving rod is rotatably connected to a second sprocket, a chain is jointly sleeved between the first sprocket and the second sprocket, a slot is opened at the front end of the second sprocket, the front end of the driving rod extends into the slot, a rotating rod is inserted in the slot, the rotating rod one end away from the slot is rotatably connected to a fixed block, the lower end of the fixed block is connected to the bottom The seat is fixedly connected, and a rotating groove is provided at one end of the rotating plug rod located in the slot, and the end of the driving rod located in the slot is inserted in the rotating groove. A plurality of lifting grooves are evenly provided on the inner wall of the rotating groove in a circumferential direction, and a lifting iron block is slidably connected in the lifting groove, and one end of the lifting iron block close to the notch of the lifting groove is fixedly connected to the lifting block, and a limiting groove is provided on the driving rod and at the corresponding position of each lifting groove, and an electromagnet is fixedly connected on the inner wall of the lifting groove on the side away from the driving rod, and two telescopic rods are fixedly connected at one end of the electromagnet close to the lifting iron block, and telescopic grooves are provided in the lifting iron block and the lifting block and at the corresponding positions of the two telescopic rods, and one end of the two telescopic rods away from the electromagnet is inserted in the telescopic groove, and a spring is fixedly connected between the telescopic rod and the inner wall of the telescopic groove.

[0007] In the above-mentioned track bicycle forced sprint training device, the radius of the first sprocket is greater than the radius of the second sprocket, and pedals are provided at the front and rear ends of the first sprocket.

[0008] In the above-mentioned track bicycle forced sprint training equipment, a plurality of slide grooves are evenly opened on the inner wall of the slot in a circumferential direction, and slide bars are fixedly connected on the outer circumference of the rotating insertion rod and at the corresponding positions of the slide grooves, and the slide bars are slidably connected in the slide grooves.

[0009] In the above-mentioned track bicycle forced sprint training apparatus, the shape of the limiting groove is the same as the shape of the lifting block.

[0010] In the above-mentioned track bicycle forced sprint training apparatus, a control switch is provided at the upper end of the vertical rod, and the control switch is electrically connected to each electromagnet.

[0011] In the above-mentioned track bicycle forced sprint training equipment, a support rod is vertically fixedly connected to the upper end of the base and at the left side of the frame, a fan is fixedly installed on the upper end of the support rod, and the air outlet end of the fan is arranged toward the top of the frame, and a frequency converter is fixedly installed on the upper end of the base, the input end of the frequency converter is electrically connected to the output end of the generator, and the output end of the frequency converter is electrically connected to the fan.

[0012] Compared with the existing technology, the advantages of this track bicycle forced sprint training device are:

[0013] 1. By setting a first sprocket, a second sprocket, a generator, a frequency converter and a fan, using the generator as a load, the athlete steps on the pedal to drive the generator to generate electricity through the chain transmission between the first sprocket and the second sprocket. The generated electric energy is used to drive the fan and blow it to the athlete to simulate wind resistance for training. The frequency converter can adjust the rotation speed of the fan by the speed at which the athlete drives the generator to rotate, and then adjust the size of the wind resistance, so that the athlete's training is more realistic and effective.

[0014] 2. When athletes find that they have physical problems or thigh muscle strains during training, they cannot stop the rotating pedal by their own strength due to the effect of the dead flywheel structure. At this time, they only need to turn on the control switch to make each electromagnet energized. The corresponding lifting iron block is attracted by the suction force of the electromagnet to drive the lifting block to move into the lifting slot, compress the spring, so that the lifting block is separated from the limit slot, and the lock between the rotating rod and the driving rod is released. Then the driving rod only rotates in the rotating slot until it stops. The second sprocket and the rotating rod can easily stop rotating after being separated from the load of the driving rod, so as to protect the athletes and enable them to safely separate from the training equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural perspective view of the front side of a track bicycle forced sprint training device proposed by the present invention;

[0016] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0017] Figure 3 A partial structural perspective view of the side surface of the second sprocket in a track bicycle forced sprint training device proposed by the present invention;

[0018] Figure 4 for Figure 3 The structural diagram of the middle part;

[0019] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at point B.

[0020] In the figure: 1 base, 2 frame, 3 first sprocket, 4 vertical rod, 5 seat, 6 handlebar, 7 generator, 8 driving rod, 9 second sprocket, 10 chain, 11 slot, 12 rotating rod, 13 rotating slot, 14 slide slot, 15 slide bar, 16 fixed block, 17 lifting slot, 18 lifting iron block, 19 lifting block, 20 limit slot, 21 electromagnet, 22 telescopic slot, 23 telescopic rod, 24 spring, 25 control switch, 26 support rod, 27 fan, 28 inverter. DETAILED DESCRIPTION

[0021] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0022] Example

[0023] Reference Figure 1-5A track bicycle forced sprint training device comprises a base 1, a frame 2 is fixedly connected to the upper end of the base 1, a vertical rod 4 and a seat 5 are fixedly installed on the upper end of the frame 2 from left to right in sequence, a handlebar 6 is fixedly connected to the front and rear sides of the vertical rod 4, and the position relationship between the seat 5 and the handlebar 6 is consistent with that on the existing track bicycle, a first sprocket 3 is installed on the frame 2, a generator 7 is fixedly installed on the upper end of the base 1 and on the right side of the frame 2, a driving end of the generator 7 is fixedly connected to a driving rod 8, and a second sprocket 9 is rotatably connected to the driving rod 8, a chain 10 is commonly sleeved between the first sprocket 3 and the second sprocket 9, and the radius of the first sprocket 3 is greater than the radius of the second sprocket 9 to meet The power generation speed required by the generator 7 is met. Foot pedals are provided at the front and rear ends of the first sprocket 3. By stepping on the foot pedals, the second sprocket 9 can be driven to rotate through the transmission of the chain 10. A slot 11 is provided at the front end of the second sprocket 9. The front end of the driving rod 8 extends into the slot 11. A rotating plug rod 12 is inserted into the slot 11. The end of the rotating plug rod 12 away from the slot 11 is rotatably connected to a fixed block 16. The lower end of the fixed block 16 is fixedly connected to the base 1. A plurality of slide grooves 14 are evenly provided on the inner wall of the slot 11 in the circumferential direction. Slide bars 15 are fixedly connected on the outer circumferential surface of the rotating plug rod 12 and at the corresponding positions of the slide grooves 14. The slide bar 15 is slidably connected in the slide groove 14, so that the second sprocket 9 can drive the rotation when it rotates. The movable plug rod 12 rotates, and a rotating groove 13 is provided at one end of the rotating plug rod 12 located in the slot 11. The end of the driving rod 8 located in the slot 11 is inserted in the rotating groove 13. A plurality of lifting grooves 17 are evenly provided on the inner wall of the rotating groove 13 in the circumferential direction. A lifting iron block 18 is slidably connected in the lifting groove 17. One end of the lifting iron block 18 close to the notch of the lifting groove 17 is fixedly connected to the lifting block 19. A limiting groove 20 is provided on the driving rod 8 and at the corresponding position of each lifting groove 17. An electromagnet 21 is fixedly connected to the inner wall of the lifting groove 17 on the side away from the driving rod 8. One end of the electromagnet 21 close to the lifting iron block 18 is fixedly connected to two telescopic rods 23. The lifting iron block 18 and the lifting block 19 Telescopic grooves 22 are provided at corresponding positions of the two telescopic rods 23. One end of the two telescopic rods 23 away from the electromagnet 21 is inserted into the telescopic groove 22. A spring 24 is fixedly connected between the telescopic rod 23 and the inner wall of the telescopic groove 22. When the electromagnet 21 is energized, it can attract the lifting iron block 18 to move toward the electromagnet 21, compressing the spring 24 between the telescopic groove 22 and the telescopic rod 23. At the same time, the lifting block 19 is located in the telescopic groove 22. At this time, when the second sprocket 9 rotates, the driving rod 8 will not rotate. After the electromagnet 21 is powered off, the lifting block 19 is inserted into the limiting groove 20 under the elastic force of the spring 24. At this time, when the second sprocket 9 rotates, it can drive the driving rod 8 to rotate to generate electricity.

[0024] The shape of the notch of the limiting groove 20 is the same as that of the lifting block 19, so that the lifting block 19 is conveniently inserted into the limiting groove 20, so that the second sprocket 9 and the driving rod 8 form a fixed flywheel structure.

[0025] A control switch 25 is disposed at the upper end of the vertical rod 4 , and the control switch 25 is electrically connected to each electromagnet 21 , so that the athlete can control the on and off of the electromagnet 21 in a timely manner.

[0026] A support rod 26 is vertically fixedly connected to the upper end of the base 1 and at the left side of the frame 2. A fan 27 is fixedly installed on the upper end of the support rod 26. The air outlet end of the fan 27 is arranged toward the top of the frame 2. A frequency converter 28 is fixedly installed on the upper end of the base 1. The input end of the frequency converter 28 is electrically connected to the output end of the generator 7. The output end of the frequency converter 28 is electrically connected to the fan 27. The current generated by the generator 7 is used to drive the fan 27 to perform wind resistance training on athletes. The frequency converter 28 is a prior art and will not be described here.

[0027] It should be noted that the generator 7 mentioned in the present invention is a small generator, and the current generated by it can be directly used by electrical appliances.

[0028] When the present invention is in use, the athlete sits on the seat 5, grasps the handlebars 6, and steps on the pedals, and then turns off the control switch 25. At this time, each electromagnet 21 is in a power-off state, and the lifting block 19 and the lifting iron block 18 extend out of the lifting slot 17 under the elastic force of the spring 24, so that one end of the lifting block 19 is inserted into the limiting slot 20, so that the rotating plug rod 12 and the driving rod 8 are locked, and then coaxial rotation can be performed. Because the second sprocket 9 and the rotating plug rod 12 are limited by the sliding slot 14 and the sliding bar 15, the second sprocket 9 and the driving rod 8 can also rotate coaxially, that is, a dead flywheel structure is formed, and then the athlete steps on the pedals. When the pedal drives the first sprocket 3 to rotate, the second sprocket 9 with the driving rod 8 is rotated through the transmission of the chain 10, thereby driving the generator 7 to work. The generator 7 can serve as a load to provide resistance when the athlete steps on the pedal, and at the same time generate current, which is supplied to the fan 27 after the frequency conversion of the inverter 28 to blow air to the athletes who are training to simulate the wind resistance during riding. The faster the athlete rides, the more electricity the generator 7 outputs. Then the inverter 28 can control the speed of the fan 27 to be faster, and the greater the wind resistance generated, and vice versa, the smaller the wind resistance is, so as to better train the athlete's riding sprint ability.

[0029] When an athlete finds that he has a physical problem or a thigh muscle strain during training, he cannot stop the rotating pedal by his own strength due to the dead flywheel structure. At this time, he only needs to turn on the control switch 25 to make each electromagnet 21 energized. The suction force of the electromagnet 21 attracts the corresponding lifting iron block 18 to drive the lifting block 19 to move into the lifting slot 17, compressing the spring 24 to make the lifting block 19 disengage from the limit slot 20, releasing the lock between the rotating rod 12 and the driving rod 8, and then the driving rod 8 only rotates in the rotating slot 13 until it stops. The second sprocket 9 and the rotating rod 12 can easily stop rotating after being separated from the load of the driving rod 8, so as to protect the athlete and enable him to safely leave the training device.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A track bicycle forced sprint training device, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected to a frame (2), the upper end of the frame (2) is fixedly mounted with a vertical rod (4) and a seat (5) in sequence from left to right, the front and rear sides of the vertical rod (4) are correspondingly fixedly connected to handlebars (6), the frame (2) is mounted with a first sprocket (3), the upper end of the base (1) and on the right side of the frame (2) is fixedly mounted with a generator (7), the driving end of the generator (7) is fixedly connected to a driving rod (8), the driving rod (8) is rotatably connected to a second sprocket (9), and the first A chain (10) is sleeved between the first sprocket (3) and the second sprocket (9); a slot (11) is provided at the front end of the second sprocket (9); the front end of the driving rod (8) extends into the slot (11); a rotating rod (12) is inserted into the slot (11); one end of the rotating rod (12) away from the slot (11) is rotatably connected to a fixed block (16); the lower end of the fixed block (16) is fixedly connected to the base (1); one end of the rotating rod (12) located in the slot (11) is provided with a rotating groove ( 13), one end of the driving rod (8) located in the slot (11) is inserted into the rotating groove (13), a plurality of lifting grooves (17) are evenly arranged on the inner wall of the rotating groove (13) in the circumferential direction, a lifting iron block (18) is slidably connected in the lifting groove (17), one end of the lifting iron block (18) close to the notch of the lifting groove (17) is fixedly connected to the lifting block (19), and a limiting groove (20) is arranged on the driving rod (8) and at a corresponding position of each lifting groove (17), and the lifting groove (17) is away from the driving rod An electromagnet (21) is fixedly connected to the inner wall of one side of the lifting iron block (8); one end of the electromagnet (21) close to the lifting iron block (18) is fixedly connected to two telescopic rods (23); telescopic grooves (22) are provided in the lifting iron block (18) and the lifting block (19) and at corresponding positions of the two telescopic rods (23); one end of the two telescopic rods (23) away from the electromagnet (21) is inserted into the telescopic groove (22); a spring (24) is fixedly connected between the telescopic rod (23) and the inner wall of the telescopic groove (22); A plurality of slide grooves (14) are evenly arranged on the inner wall of the slot (11) in a circumferential direction, and slide bars (15) are fixedly connected to the outer circumferential surface of the rotating plug rod (12) and at corresponding positions of the slide grooves (14), and the slide bars (15) are slidably connected in the slide grooves (14); A control switch (25) is provided at the upper end of the vertical rod (4), and the control switch (25) is electrically connected to each electromagnet (21).

2. A track bicycle forced sprint training device according to claim 1, characterized in that: The radius of the first sprocket (3) is greater than the radius of the second sprocket (9), and pedals are provided at the front and rear ends of the first sprocket (3).

3. A track bicycle forced sprint training device according to claim 1, characterized in that: The shape of the notch of the limiting groove (20) is the same as that of the lifting block (19).

4. The track bicycle forced sprint training device according to claim 1, characterized in that: A support rod (26) is vertically fixedly connected to the upper end of the base (1) and at the left side of the frame (2); a fan (27) is fixedly installed on the upper end of the support rod (26); an air outlet end of the fan (27) is arranged toward the upper side of the frame (2); a frequency converter (28) is fixedly installed on the upper end of the base (1); an input end of the frequency converter (28) is electrically connected to an output end of the generator (7); and an output end of the frequency converter (28) is electrically connected to the fan (27).

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