CN112791364A

CN112791364A - Site bicycle forced sprint training instrument

Info

Publication number: CN112791364A
Application number: CN202110173807.5A
Authority: CN
Inventors: 陈谦; 吕熠豪; 方海波
Original assignee: Zhejiang Institute Of Sports Science Zhejiang Anti Doping Center
Current assignee: Zhejiang Institute Of Sports Science Zhejiang Anti Doping Center
Priority date: 2021-02-06
Filing date: 2021-02-06
Publication date: 2021-05-14

Abstract

The invention discloses a field bicycle forced sprint training instrument which comprises a base, wherein the upper end of the base is fixedly connected with a frame, the upper end of the frame is fixedly provided with a vertical rod and a saddle from left to right, the front side and the rear side of the vertical rod are correspondingly and fixedly connected with handlebar handles, the frame is provided with a first chain wheel, the upper end of the base is fixedly provided with a generator at the right side position of the frame, the driving end of the generator is fixedly connected with a driving rod, the driving rod is rotatably connected with a second chain wheel, a chain is sleeved between the first chain wheel and the second chain wheel together, the front end of the second chain wheel is provided with a slot, and the front end of the driving rod extends into the slot. Has the advantages that: the electric generator is used as a load to carry out sprint training, and wind generated by the fan is used for simulating subletting, so that the training is more real and effective, and the dead flywheel structure can be removed when the body of an athlete rises to cause the training apparatus to stop safely.

Description

Site bicycle forced sprint training instrument

Technical Field

The invention relates to the technical field of sports training instruments, in particular to a field bicycle forced sprint training instrument.

Background

The bicycle used in the bicycle competition in the field is only provided with a single-speed gear without a brake, and a dead flywheel is arranged only for pursuing a faster speed.

There are long-range and short distance match in the place bicycle match, wherein very test sportsman's sprint ability, and then when the training, can use sprint training apparatus to carry out the accent and strengthen the training to sportsman's sprint ability, in present sprint training apparatus, trample the simulation bicycle by the sportsman original place usually and train sprint ability, and the motion of original place motionless can not produce the windage, the environment of experience is different when with the match, can influence the performance of sportsman when match then, and this kind of simulation bicycle need install dead flywheel with the place bicycle, and it is too big when sportsman's training intensity, when the certain problem takes place for the health muscle, unable timely stop trampling the motion, then damage sportsman's health.

In order to solve the problems, a field bicycle forced sprint training instrument is provided.

Disclosure of Invention

The invention aims to solve the problems in the background technology and provides a field bicycle forcible sprint training instrument.

In order to achieve the purpose, the invention adopts the following technical scheme: a field bicycle forced sprint training instrument comprises a base, wherein a frame is fixedly connected to the upper end of the base, a vertical rod and a saddle are fixedly installed at the upper end of the frame from left to right in sequence, a handlebar is fixedly connected to the front side and the rear side of the vertical rod correspondingly, a first chain wheel is installed on the frame, a generator is fixedly installed at the upper end of the base and at the right side of the frame, a driving end of the generator is fixedly connected with a driving rod, a second chain wheel is rotatably connected to the driving rod, a chain is sleeved between the first chain wheel and the second chain wheel together, a slot is formed in the front end of the second chain wheel, the front end of the driving rod extends into the slot, a rotating insertion rod is inserted in the slot, one end of the rotating insertion rod, far away from the slot, is rotatably connected with a fixed block, the lower end of the fixed block is, the utility model discloses a telescopic electric iron, including the slot, the actuating lever is located the slot one end and is inserted and establish and rotate the inslot, it evenly has seted up a plurality of lift grooves to rotate circumference on the inslot wall, sliding connection has the iron plate that goes up and down in the lift inslot, the iron plate that goes up and down is close to the one end fixed connection elevator of lift groove notch, the spacing groove has all been seted up on the actuating lever on and on the corresponding position in every lift groove, fixedly connected with electro-magnet on the one side inner wall that the actuating lever was kept away from to the lift groove, the electro-magnet is close to two telescopic links of one end fixedly connected with of iron plate that goes up and down, flexible groove has all been seted up in elevator and on the corresponding position of two telescopic links, two.

In the field bicycle forcible sprint training instrument, the radius of the first chain wheel is larger than that of the second chain wheel, and the front end and the rear end of the first chain wheel are provided with the pedals.

In the above-mentioned field bicycle is forced to dash and thorn training apparatus, a plurality of spouts have evenly been seted up to circumference on the slot inner wall, rotate on the inserted bar outer peripheral face and all fixedly connected with draw runner on the corresponding position of spout, draw runner sliding connection is in the spout.

In the field bicycle forcible sprint training instrument, the shape of the notch of the limiting groove is the same as that of the lifting block.

In the above-mentioned field bicycle is forced to dash and thorn training apparatus, the montant upper end is equipped with control switch, control switch and every electro-magnet electric connection.

In foretell a spurt training apparatus is forced to place bicycle, the base upper end just is at the vertical fixedly connected with bracing piece in frame left side position, upper end of the support bar fixed mounting has the fan, the air-out end of fan sets up towards the frame top, base upper end fixed mounting has the converter, the input of converter and the output electric connection of generator, the output and the fan electric connection of converter.

Compared with the prior art, this training apparatus is dashed to force to place bicycle's advantage lies in:

1. through setting up first sprocket, second sprocket, generator, converter and fan, utilize the generator as the load, make the sportsman trample the running-board and drive the generator through the chain drive between first sprocket and the second sprocket and generate electricity, the electric energy of production supplies the fan drive, blow to sportsman's simulation windage and train, and converter accessible sportsman drives generator pivoted speed piece slowly and adjusts the slew velocity of fan, adjust the size of windage then, make sportsman's training more reality, it is effective.

2. When a sportsman finds that a problem occurs to the body of the sportsman or thigh muscles are pulled, the running board cannot stop rotating by self force due to the action of a dead flywheel structure, at the moment, only a control switch needs to be turned on, each electromagnet is in an electrified state, the corresponding lifting iron block is attracted by the attraction of the electromagnet to drive the lifting block to move towards the lifting groove, a spring is compressed, the lifting block is separated from a limiting groove, the locking between the rotating inserted bar and the driving bar is released, then the driving bar only rotates in the rotating groove until the lifting bar stops, and the second chain wheel and the rotating inserted bar can stop rotating easily after being separated from the load of the driving bar, so that the effect of protecting the sportsman is achieved, and the sportsman can be safely separated from the training instrument.

Drawings

FIG. 1 is a front perspective view of a field bicycle sprint training apparatus according to the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is a perspective view of a portion of the structure of the side of the second sprocket of the field bicycle sprint training apparatus according to the present invention;

FIG. 4 is a schematic structural view of a portion of FIG. 3;

fig. 5 is an enlarged schematic view of the structure at B in fig. 4.

In the figure: the device comprises a base 1, a frame 2, a first chain wheel 3, a vertical rod 4, a saddle 5, a handlebar 6, a generator 7, a driving rod 8, a second chain wheel 9, a chain 10, a slot 11, a rotating inserted rod 12, a rotating groove 13, a sliding groove 14, a sliding strip 15, a fixed block 16, a lifting groove 17, a lifting iron block 18, a lifting block 19, a limiting groove 20, an electromagnet 21, a telescopic groove 22, a telescopic rod 23, a spring 24, a control switch 25, a supporting rod 26, a fan 27 and a frequency converter 28.

Detailed Description

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

Examples

Referring to fig. 1-5, a field bicycle forced sprint training apparatus comprises a base 1, a frame 2 fixedly connected to the upper end of the base 1, a vertical rod 4 and a saddle 5 fixedly installed on the upper end of the frame 2 from left to right in sequence, a handlebar 6 fixedly connected to the front and rear sides of the vertical rod 4 correspondingly, the saddle 5 and the handlebar 6 are in accordance with the position of the existing field bicycle, a first chain wheel 3 is installed on the frame 2, a generator 7 is fixedly installed on the upper end of the base 1 and at the right side of the frame 2, a driving rod 8 is fixedly connected to the driving end of the generator 7, a second chain wheel 9 is rotatably connected to the driving rod 8, a chain 10 is sleeved between the first chain wheel 3 and the second chain wheel 9, the radius of the first chain wheel 3 is larger than that of the second chain wheel 9 to meet the required generating speed of the generator 7, pedals are installed at the, the second chain wheel 9 can be driven to rotate through the transmission of a chain 10 by treading a pedal, the front end of the second chain wheel 9 is provided with a slot 11, the front end of a driving rod 8 extends into the slot 11, a rotating inserted rod 12 is inserted into the slot 11, one end of the rotating inserted rod 12, which is far away from the slot 11, is rotatably connected with a fixed block 16, the lower end of the fixed block 16 is fixedly connected with a base 1, the inner wall of the slot 11 is circumferentially and uniformly provided with a plurality of sliding grooves 14, the outer circumferential surface of the rotating inserted rod 12 is fixedly connected with sliding strips 15 on the corresponding positions of the sliding grooves 14, the sliding strips 15 are slidably connected in the sliding grooves 14, so that the second chain wheel 9 can drive the rotating inserted rod 12 to rotate when rotating, one end of the rotating inserted rod 12, which is positioned in the slot 11, is provided with a rotating groove 13, one end of the driving rod 8, which is positioned in the slot 11, is inserted in the, one end of the lifting iron block 18 close to the notch of the lifting groove 17 is fixedly connected with a lifting block 19, a limit groove 20 is arranged on the driving rod 8 and on the corresponding position of each lifting groove 17, one side inner wall of the lifting groove 17 far away from the driving rod 8 is fixedly connected with an electromagnet 21, one end of the electromagnet 21 close to the lifting iron block 18 is fixedly connected with two telescopic rods 23, telescopic grooves 22 are arranged in the lifting iron block 18 and the lifting block 19 and on the corresponding positions of the two telescopic rods 23, one ends of the two telescopic rods 23 far away from the electromagnet 21 are inserted in the telescopic grooves 22, springs 24 are fixedly connected between the telescopic rods 23 and the inner walls of the telescopic grooves 22 together, when the electromagnet 21 is electrified, the lifting iron block 18 can be attracted to move towards the electromagnet 21, the telescopic grooves 22 and the springs 24 direct to the telescopic rods 23 are compressed, meanwhile, the lifting block 19 is positioned in the telescopic grooves 22, when the second chain, 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, and at this time, the second chain wheel 9 can drive the driving rod 8 to rotate when rotating, so as to generate electricity.

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 can be conveniently inserted into the limiting groove 20, and the second chain wheel 9 and the driving rod 8 form a dead flywheel structure.

The upper end of the vertical rod 4 is provided with a control switch 25, and the control switch 25 is electrically connected with each electromagnet 21, so that a sportsman can control the on-off of the electromagnets 21 in time.

Base 1 upper end just is at the vertical fixedly connected with bracing piece 26 in frame 2 left side position, bracing piece 26 upper end fixed mounting has fan 27, fan 27's air-out end sets up towards frame 2 top, 1 upper end fixed mounting of base has converter 28, the input of converter 28 and generator 7's output electric connection, the output and the fan 27 electric connection of converter 28, the electric current that generator 7 produced supplies fan 27 drive, in order to carry out the windage training to the sportsman, converter 28 is prior art, do not explain here.

The generator 7 of the present invention is a small generator, and the generated current can be directly used by an electric appliance.

When the invention is used, an athlete sits on the saddle 5 and grasps the handlebar 6 with hands, and after stepping on the pedal, closes the control switch 25, at the moment, each electromagnet 21 is in a power-off state, the lifting block 19 and the lifting iron block 18 extend out of the lifting groove 17 under the elastic force of the spring 24, so that one end of the lifting block 19 is inserted into the limiting groove 20, the rotating inserted bar 12 and the driving bar 8 are locked, and then can rotate coaxially, because the second chain wheel 9 and the rotating inserted bar 12 are limited by the sliding groove 14 and the sliding strip 15, the second chain wheel 9 and the driving bar 8 can also rotate coaxially, namely a dead flywheel structure is formed, and then when the athlete steps on the pedal to drive the first chain wheel 3 to rotate, the second chain wheel 9 drives the driving bar 8 to rotate through the transmission of the chain 10, so as to drive the generator 7 to work, the generator 7 can be used as a load to provide resistance when the athlete steps on the pedal, and meanwhile, current is generated, the fan 27 works after the frequency conversion of the frequency converter 28 to blow air to the athlete who is training so as to simulate the wind resistance during riding, the faster the athlete rides, the more the electric quantity output by the generator 7, the faster the rotating speed of the fan 27 can be controlled by the frequency converter 28, the larger the generated wind resistance is, and the smaller the wind resistance is, so that the riding sprint capability of the athlete can be trained better.

When an athlete finds that the body of the athlete is in a problem or the thigh muscles are strained in the middle of the training process, the athlete cannot stop the running pedal by the aid of self force due to the action of a dead flywheel structure, at the moment, only the control switch 25 needs to be turned on, each electromagnet 21 is in an electrified state, the corresponding lifting iron block 18 is attracted by suction force of the electromagnet 21 to drive the lifting block 19 to move into the lifting groove 17, the spring 24 is compressed, the lifting block 19 is separated from the limiting groove 20, locking between the rotating inserted rod 12 and the driving rod 8 is released, then the driving rod 8 only rotates in the rotating groove 13 until the running pedal stops, and the second chain wheel 9 and the rotating inserted rod 12 can stop rotating easily after being separated from the load of the driving rod 8, so that the athlete is protected and safely separated from the training apparatus.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a spurt training apparatus is forced to place bicycle, includes base (1), its characterized in that, base (1) upper end fixedly connected with frame (2), frame (2) upper end from a left side to the right side in proper order fixed mounting have montant (4) and saddle (5), both sides correspond fixedly connected with handlebar hand (6) around montant (4), install first sprocket (3) on frame (2), base (1) upper end and frame (2) right side position fixed mounting have generator (7), the drive end fixedly connected with actuating lever (8) of generator (7), it is connected with second sprocket (9) to rotate on actuating lever (8), it is equipped with chain (10) to overlap jointly between first sprocket (3) and second sprocket (9), slot (11) has been seted up to second sprocket (9) front end, actuating lever (8) front end extends to inside slot (11), a rotary inserting rod (12) is inserted into the slot (11), a fixed block (16) is rotatably connected to one end, far away from the slot (11), of the rotary inserting rod (12), the lower end of the fixed block (16) is fixedly connected with the base (1), a rotary groove (13) is formed in one end, located in the slot (11), of the rotary inserting rod (12), one end, located in the slot (11), of the driving rod (8) is inserted into the rotary groove (13), a plurality of lifting grooves (17) are circumferentially and uniformly formed in the inner wall of the rotary groove (13), a lifting iron block (18) is slidably connected in the lifting groove (17), one end, close to the notch of the lifting groove (17), of the lifting iron block (18) is fixedly connected with a lifting block (19), a limiting groove (20) is formed in the driving rod (8) and in the corresponding position of each lifting groove (17), and an electromagnet (21) is fixedly connected to one side, far away from the driving rod (8), of the lifting groove, two telescopic links (23) of one end fixedly connected with that electro-magnet (21) are close to lift iron plate (18), in lift iron plate (18) and lift piece (19) and all seted up flexible groove (22), two on the corresponding position of two telescopic links (23) telescopic link (23) are kept away from the one end of electro-magnet (21) and are inserted and establish in flexible groove (22), common fixedly connected with spring (24) between telescopic link (23) and flexible groove (22) inner wall.

2. A field bicycle forced sprint training device according to claim 1, wherein the radius of the first chain wheel (3) is larger than the radius of the second chain wheel (9), and pedals are arranged at the front and rear ends of the first chain wheel (3).

3. A field bicycle forced sprint training apparatus according to claim 1, wherein a plurality of sliding grooves (14) are evenly formed in the inner wall of the slot (11) in the circumferential direction, sliding strips (15) are fixedly connected to the outer circumferential surface of the rotary inserted rod (12) and the corresponding positions of the sliding grooves (14), and the sliding strips (15) are slidably connected in the sliding grooves (14).

4. A field bicycle forced sprint training device according to claim 1, wherein the shape of the notch of the limit groove (20) is the same as the shape of the lifting block (19).

5. A field bicycle forced sprint training device according to claim 1, wherein the vertical rod (4) is provided with a control switch (25) at the upper end thereof, and the control switch (25) is electrically connected to each electromagnet (21).

6. The field bicycle forced sprint training apparatus according to claim 1, wherein a support rod (26) is vertically and fixedly connected to the upper end of the base (1) at the left side of the frame (2), a fan (27) is fixedly mounted at the upper end of the support rod (26), the air outlet end of the fan (27) is arranged towards the upper side of the frame (2), a frequency converter (28) is fixedly mounted at the upper end of the base (1), the input end of the frequency converter (28) is electrically connected with the output end of the generator (7), and the output end of the frequency converter (28) is electrically connected with the fan (27).