阅读说明：本技术 一种用于田径项目体能综合训练装置 (Be used for track and field project physical stamina to synthesize trainer ) 是由 王兵柯 于 2021-01-15 设计创作，主要内容包括：本发明公开了一种用于田径项目体能综合训练装置,涉及体育健身技术领域,解决了目前使用的训练装置主要以定位零件提供锻炼功能,在田径项目中用腿项目占比较大的问题。一种用于田径项目体能综合训练装置,包括底座；所述底座的顶部前侧两端固定设置有两组前侧架；两组前侧架的内侧均通过导轨滑动设置有U形滑架；U形滑架的内侧中心位置通过转轴旋转设置有踏板,踏板能够通过顶丝固定在转轴外,转轴另一端固定设置有滑动架；通过设置有踏板、U形滑架和导杆,为训练装置提供了直接踩压的训练功能,导杆的外侧设置有弹簧,能够配合U形架进行升降踩踏训练,弹簧能提供增加压力,并且在松开踏板时自动复位,提供了直接对腿的肌肉进行训练的功能。(The invention discloses a comprehensive physical training device for an athletic event, relates to the technical field of physical fitness, and solves the problems that the existing training device mainly uses positioning parts to provide an exercise function and uses leg events to account for a large proportion in the athletic event. A physical ability comprehensive training device for track and field projects comprises a base; two groups of front side frames are fixedly arranged at two ends of the front side of the top of the base; the inner sides of the two groups of front side frames are provided with U-shaped sliding frames in a sliding way through guide rails; the central position of the inner side of the U-shaped sliding frame is rotatably provided with a pedal through a rotating shaft, the pedal can be fixed outside the rotating shaft through a jackscrew, and the sliding frame is fixedly arranged at the other end of the rotating shaft; through being provided with footboard, U-shaped balladeur train and guide arm, provide the training function that directly steps on for trainer, the outside of guide arm is provided with the spring, can cooperate the U-shaped frame to go up and down to trample the training, and the spring can provide increase pressure to automatic re-setting when loosening the footboard provides the function that directly trains the muscle of leg.)

1. The utility model provides a be used for track and field project physical stamina to synthesize trainer which characterized in that: comprises a base (1); two groups of front side frames (2) are fixedly arranged at two ends of the front side of the top of the base (1); the inner sides of the two groups of front side frames (2) are provided with U-shaped sliding frames (3) in a sliding way through guide rails; the U-shaped sliding frame (3) further comprises a pedal (301), a sliding frame (302), a side reinforcing cover (303) and a sliding strip (304); a pedal (301) is rotatably arranged at the center of the inner side of the U-shaped sliding frame (3) through a rotating shaft, the pedal (301) can be fixed outside the rotating shaft through a jackscrew, and a sliding frame (302) is fixedly arranged at the other end of the rotating shaft; two ends of the sliding frame (302) are fixedly provided with side reinforcing covers (303); two groups of sliding strips (304) are integrally arranged on the inner sides of the two groups of sliding frames (302); two groups of middle frames (4) are fixedly arranged on the front side of the top of the base (1); the top of the rear side of the base (1) is fixedly provided with a front partition frame (9) and a rear partition frame (10), and the main bodies of the front partition frame (9) and the rear partition frame (10) are both in a T-shaped structure; two rear frames (6) are fixedly arranged at two ends of the rear side of the top of the base (1), and a ventilation backrest (7) is fixedly arranged at the tops of the two rear frames (6).

2. The device for comprehensive physical training of track and field projects according to claim 1, wherein: the front side frame (2) also comprises an L-shaped frame (201) and a guide rod (202); the tops of the two groups of front side frames (2) are fixedly provided with L-shaped frames (201); a handle structure is integrally arranged at the top of the front side of the L-shaped frame (201); two groups of guide rods (202) are fixedly arranged between the bottoms of the two sides of the L-shaped frame (201) and the top of the base (1); two sides of the U-shaped sliding frame (3) are connected with the guide rod (202) in a sliding way; the outer ends of the guide rods (202) at the bottom of the U-shaped sliding frame (3) are all sleeved with springs.

3. The device for comprehensive physical training of track and field projects according to claim 1, wherein: the U-shaped sliding frame (3) further comprises a side strip cover (305), an adjusting screw rod (306), a sliding shaft bracket (307), a connecting shaft (308), a supporting plate (309) and interlocking pins (310); a through groove is formed in the middle of each of the two sliding frames (302), a side strip cover (305) is fixedly arranged at the opening end of each sliding frame (302), and an adjusting screw rod (306) is rotatably arranged between each side strip cover (305) and each sliding frame (302); a sliding shaft bracket (307) is arranged in a through groove structure of the sliding bracket (302) in a sliding mode, one side of the sliding shaft bracket (307) is rotatably provided with two groups of connecting shafts (308) through hinges, and the other ends of the two groups of connecting shafts (308) are rotatably provided with supporting plates (309) through hinges; one side of the supporting plate (309) is integrally provided with four groups of interlocking pins (310).

4. The device for comprehensive physical training of track and field projects according to claim 1, wherein: the middle frame (4) further comprises a side sliding groove (401), a linkage shaft (402), a synchronous gear (403) and a linkage gear (404); the middle parts of two sides of the two groups of middle frames (4) are respectively provided with a side sliding groove (401), and the sliding strips (304) can be vertically arranged in the side sliding grooves (401) in a sliding manner; a linkage shaft (402) is rotatably arranged in the middle of the two groups of middle frames (4), and the linkage shaft (402) is positioned outside the position between the two groups of middle frames (4) and is fixedly provided with a synchronous gear (403); the rear end of the linkage shaft (402) penetrates through the front partition frame (9) and is fixedly provided with a linkage gear (404); the top of the two groups of middle frames (4) is fixedly provided with a top seat (5).

5. The device for comprehensive physical training of track and field projects according to claim 4, wherein: the top seat (5) further comprises a hexagonal guide rod (501), a tooth row (502) and a pin hole (503); two groups of hexagonal guide rods (501) are fixedly arranged between the bottom of the top seat (5) and the top of the base (1), and tooth rows (502) are arranged on the outer sides of the hexagonal guide rods (501) in a sliding manner; two ends of the outer side of the gear row (502) are provided with four groups of pin holes (503); the positions of the two groups of tooth rows (502) are centrosymmetric by taking the synchronous gear (403) as an origin, and two sides of the synchronous gear (403) are meshed with the front-end racks of the two groups of tooth rows (502).

6. The device for comprehensive physical training of track and field projects according to claim 1, wherein: four groups of smooth holes are formed in the adjacent sides of the two groups of sliding frames (302), and the interlocking pins (310) can penetrate through the smooth holes of the sliding frames (302) to be connected in a sliding mode; the connecting lock pin (310) can be inserted into the pin hole (503) through clearance fit; the distance between the sliding shaft bracket (307) and the supporting plate (309) is larger than the length of the connecting lock pin (310).

7. The device for comprehensive physical training of track and field projects according to claim 1, wherein: the inner side of the ventilation backrest (7) is rotatably provided with a fan (8) by matching a support with a rotating shaft; two groups of driven shafts (11) are rotatably arranged between the two sides of the top of the front partition frame (9) and the rear partition frame (10); the front side of the driven shaft (11) is fixedly provided with inner ratchet gears (12), the rotating directions of the two groups of inner ratchet gears (12) are opposite, and the inner ratchet gears (12) are meshed with the linkage gear (404).

8. The device for comprehensive physical training of track and field projects according to claim 1, wherein: the front side of the rear partition frame (10) is rotatably provided with a transmission shaft (13), and two sides of the transmission shaft (13) are in transmission connection with two groups of driven shafts (11) through bevel gears; a torque shaft (14) is rotatably arranged between the conduction shaft (13) and the ventilation backrest (7), the top end of the torque shaft (14) is in transmission connection with a fan (8) through a bevel gear, and the bottom end of the torque shaft (14) is in transmission connection with the conduction shaft (13) through the bevel gear.

Technical Field

The invention relates to the technical field of physical fitness, in particular to a physical fitness comprehensive training device for an athletic event.

Background

Physical ability is the basic athletic ability of the human body expressed by the sports diathesis such as strength, speed, endurance, coordination, flexibility, sensitivity and the like, is an important component factor of athletic ability of athletes, the physical ability level is closely related to the morphological characteristics and the functional characteristics of the human body, and a related auxiliary training device is often needed for training track and field projects.

Through retrieving for example patent No. CN211676070U discloses a field and field project physical stamina combined training device, including unable adjustment base, unable adjustment base's top is provided with the fly leaf, the fly leaf is provided with two, two be provided with the movable rod between the fly leaf, the top of movable rod is provided with the pull rod, unable adjustment base's top is provided with the axis of rotation, the axis of rotation is connected with rotating the seat rotation, unable adjustment base's top is provided with the gag lever post, the top and the movable rod swing joint of gag lever post. The utility model discloses a both hands pulling pull rod, and then can drive the movable rod rebound, the movable rod sets up to the metal material who has certain gravity, can temper the user through the pulling pull rod, and when not using, through rotating the fly leaf, and then make the fly leaf rotate on the axis of rotation surface, and then make the fly leaf can accomodate on the unable adjustment base top, can practice thrift the space, the training device's of being convenient for storage.

For another example patent No. CN206566470U discloses a training device is synthesized to track and field project physical stamina, belongs to sports physical stamina training equipment technical field, including PMKD, fixed piece, activity picture peg, activity bolt, elasticity stretching strap, fixed through-hole, fixed stretching strap, its characterized in that: each fixedly connected with fixed stay of department in the middle of the edge about PMKD upper end surface, every fixed stay is gone up each cartridge of department in the middle of the edge of top surface front on the fixed stay and is had movable picture peg, every fixed stay outside top surface front edge each cartridge of department has movable bolt, every fixed stay is down each cartridge of top surface the place ahead department has elasticity stretching strap, every elasticity stretching strap side top surface vertical distribution is equipped with a plurality of fixing hole, two fixed stay of fixedly connected with between the top surface on the elasticity stretching strap, the gravity of the ware of squatting deeply of regulation that motion personnel can be quick at any time to motion personnel also can be quick at any time in the motion process gravity of the ware of squatting deeply of regulation.

However, the training device used at present mainly provides an exercise function by positioning parts, and the leg item accounts for a relatively large area in the track and field project, and a general training device does not have a function of directly training muscles of legs, does not have a coordination auxiliary function, and does not have an auxiliary component which automatically provides a heat dissipation function during training, so that the existing requirements are not met, and a comprehensive training device for the physical performance of the track and field project is provided.

Disclosure of Invention

Problem (A)

The invention aims to provide a comprehensive physical training device for track and field projects, which aims to solve the problems that the existing training device provided by the background technology mainly provides an exercise function by positioning parts, leg projects account for a large area in the track and field projects, and a common training device does not have a function of directly training muscles of legs, does not have a coordination auxiliary function and does not have an auxiliary component which automatically provides a heat dissipation function during training.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a physical ability comprehensive training device for track and field projects comprises a base; two groups of front side frames are fixedly arranged at two ends of the front side of the top of the base; the inner sides of the two groups of front side frames are provided with U-shaped sliding frames in a sliding manner through guide rails; the U-shaped sliding frame also comprises a pedal, a sliding frame, a side reinforcing cover and a sliding strip; the center position of the inner side of the U-shaped sliding frame is rotatably provided with a pedal through a rotating shaft, the pedal can be fixed outside the rotating shaft through a jackscrew, and the sliding frame is fixedly arranged at the other end of the rotating shaft; two ends of the sliding frame are fixedly provided with side reinforcing covers; two groups of sliding strips are integrally arranged on the inner sides of the two groups of sliding frames; two groups of middle frames are fixedly arranged on the front side of the top of the base; the top of the rear side of the base is fixedly provided with a front partition frame and a rear partition frame, and the main bodies of the front partition frame and the rear partition frame are both in T-shaped structures; two groups of rear frames are fixedly arranged at two ends of the rear side of the top of the base, and a ventilation backrest is fixedly arranged at the tops of the two groups of rear frames.

Preferably, the front side frame further comprises an L-shaped frame and a guide rod; the tops of the two groups of front side frames are both fixedly provided with an L-shaped frame; a handle structure is integrally arranged at the top of the front side of the L-shaped frame; two groups of guide rods are fixedly arranged between the bottoms of the two sides of the L-shaped frame and the top of the base; two sides of the U-shaped sliding frame are connected with the guide rod in a sliding manner; the outer ends of the guide rods at the bottom of the U-shaped sliding frame are all sleeved with springs.

Preferably, the U-shaped sliding frame further comprises a side strip cover, an adjusting screw rod, a sliding shaft frame, a connecting shaft, a supporting plate and a connecting lock pin; a through groove is formed in the middle of each of the two sliding frames, a side strip cover is fixedly arranged at the opening end of each sliding frame, and an adjusting screw rod is rotatably arranged between each side strip cover and each sliding frame; a sliding shaft bracket is arranged in a through groove structure of the sliding bracket in a sliding manner, two groups of connecting shafts are rotatably arranged on one side of the sliding shaft bracket through hinge connection, and supporting plates are rotatably arranged on the other ends of the two groups of connecting shafts through hinge connection; one side of the supporting plate is integrally provided with four groups of interlocking pins.

Preferably, the middle frame further comprises a side sliding chute, a linkage shaft, a synchronous gear and a linkage gear; the middle parts of the two sides of the two groups of middle frames are respectively provided with a side sliding groove, and the sliding strips can be vertically arranged in the side sliding grooves in a sliding manner; a linkage shaft is rotatably arranged in the middle of the two groups of middle frames, is positioned outside the position between the two groups of middle frames and is fixedly provided with a synchronous gear; the rear end of the linkage shaft penetrates through the front partition frame and is fixedly provided with a linkage gear; the top of the two groups of middle frames are fixedly provided with a top seat.

Preferably, the top seat further comprises a hexagonal guide rod, a tooth row and a pin hole; two groups of hexagonal guide rods are fixedly arranged between the bottom of the top seat and the top of the base, and tooth rows are arranged on the outer sides of the hexagonal guide rods in a sliding manner; two ends of the outer side of the gear row are provided with four groups of pin holes; the two groups of tooth rows are centrosymmetric by taking the synchronous gear as an origin, and two sides of the synchronous gear are meshed with the front-end racks of the two groups of tooth rows.

Preferably, four groups of round and smooth holes are formed in the adjacent sides of the two groups of sliding frames, and the interlocking pins can penetrate through the round and smooth holes of the sliding frames to be in sliding connection; the connecting lock pin can be inserted into the pin hole through clearance fit; the distance between the sliding shaft bracket and the supporting plate is larger than the length of the connecting lock pin.

Preferably, the inner side of the ventilation backrest is rotatably provided with a fan through a bracket matched with a rotating shaft; two groups of driven shafts are rotatably arranged between the two sides of the top of the front partition frame and the rear partition frame; the front side of the driven shaft is fixedly provided with inner ratchet gears, the rotating directions of the two groups of inner ratchet gears are opposite, and the inner ratchet gears are meshed with the linkage gears.

Preferably, the front side of the rear partition frame is rotatably provided with a transmission shaft, and two sides of the transmission shaft are in transmission connection with two groups of driven shafts through bevel gears; a torque shaft is rotatably arranged between the conduction shaft and the ventilation backrest, the top end of the torque shaft is in transmission connection with a fan bevel gear, and the bottom end of the torque shaft is in transmission connection with the conduction shaft through a bevel gear.

(III) advantageous effects

The invention provides a physical ability comprehensive training device for track and field projects, which is provided with a pedal, a U-shaped sliding frame and a guide rod, so that a direct treading training function is provided for the training device, a spring is arranged on the outer side of the guide rod, the lifting treading training can be carried out by matching with the U-shaped frame, the spring can provide increased pressure, the spring automatically resets when the pedal is released, and a function of directly training muscles of legs is provided.

Secondly, the setting of profile of tooth row, synchronous gear provides the harmony auxiliary function for trainer, utilizes the interlock round pin can control the portable mode of two sets of U-shaped balladeur trains, can form asynchronous motion structure with two sets of profile of tooth row cooperation synchronous gear through the fixed profile of interlocking round pin, and the right foot must promote when the left foot descends, provides convenience for the harmony training of track and field project.

Moreover, the arrangement of the linkage gear and the linkage shaft can utilize the tooth row to provide torque in the trampling process, the fan is finally driven to rotate through the torque transmission of the transmission shaft, the inner ratchet gear, the transmission shaft and the torque shaft, and wind power generated by the fan is utilized to cool the body of a trainer.

Drawings

FIG. 1 is a schematic perspective front view of an embodiment of the present invention;

FIG. 2 is a schematic perspective rear view structure in an embodiment of the present invention;

FIG. 3 is a schematic bottom view of an embodiment of the present invention;

FIG. 4 is a partial perspective view of an embodiment of the present invention;

FIG. 5 is a schematic perspective view of a U-shaped carriage according to an embodiment of the present invention;

FIG. 6 is a schematic perspective view of a sliding pedestal according to an embodiment of the present invention;

FIG. 7 is a schematic perspective view of an intermediate frame according to an embodiment of the present invention;

FIG. 8 is an enlarged partial structural view of part A in the embodiment of the present invention;

in fig. 1 to 8, the correspondence between the part names or lines and the reference numbers is:

1. a base; 2. a front side frame; 201. an L-shaped frame; 202. a guide bar; 3. a U-shaped carriage; 301. a pedal; 302. a carriage; 303. a side reinforcement cover; 304. a slide bar; 305. a side strip cover; 306. adjusting the lead screw; 307. a sliding pedestal; 308. a connecting shaft; 309. a supporting plate; 310. a lock pin is connected; 4. a middle frame; 401. a side chute; 402. a linkage shaft; 403. a synchronizing gear; 404. a linkage gear; 5. a top seat; 501. a hexagonal guide bar; 502. a tooth row; 503. a pin hole; 6. a rear frame; 7. a ventilated back; 8. a fan; 9. a front partition frame; 10. a rear shelf; 11. a driven shaft; 12. an inner ratchet gear; 13. a conductive shaft; 14. a moment axis.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 8, an embodiment of the present invention includes: a physical ability comprehensive training device for track and field projects comprises a base 1; two groups of front side frames 2 are fixedly arranged at two ends of the front side of the top of the base 1; wherein, the front side frame 2 also comprises an L-shaped frame 201 and a guide rod 202; the tops of the two groups of front side frames 2 are both fixedly provided with an L-shaped frame 201; a handle structure is integrally arranged at the top of the front side of the L-shaped frame 201; two groups of guide rods 202 are fixedly arranged between the bottoms of the two sides of the L-shaped frame 201 and the top of the base 1; two sides of the U-shaped sliding frame 3 are connected with the guide rod 202 in a sliding way; springs are sleeved at the outer ends of the guide rods 202 at the bottom of the U-shaped sliding frame 3; the inner sides of the two groups of front side frames 2 are provided with U-shaped sliding frames 3 in a sliding way through guide rails; the U-shaped sliding frame 3 also comprises a pedal 301, a sliding frame 302, a side reinforcing cover 303 and a sliding strip 304; a pedal 301 is rotatably arranged at the center of the inner side of the U-shaped sliding frame 3 through a rotating shaft, the pedal 301 can be fixed outside the rotating shaft through a jackscrew, and a sliding frame 302 is fixedly arranged at the other end of the rotating shaft; two ends of the sliding frame 302 are fixedly provided with side reinforcing covers 303; two groups of sliding strips 304 are integrally arranged on the inner sides of the two groups of sliding frames 302; the U-shaped carriage 3 further comprises a side strip cover 305, an adjusting screw 306, a sliding shaft bracket 307, a connecting shaft 308, a supporting plate 309 and a interlocking pin 310; a through groove is formed in the middle of each of the two sliding frames 302, a side strip cover 305 is fixedly arranged at the opening end of each sliding frame 302, and an adjusting screw 306 is rotatably arranged between each side strip cover 305 and each sliding frame 302; a sliding shaft bracket 307 is arranged in a through groove structure of the sliding bracket 302 in a sliding manner, two groups of connecting shafts 308 are rotatably arranged on one side of the sliding shaft bracket 307 through hinge connection, and supporting plates 309 are rotatably arranged on the other ends of the two groups of connecting shafts 308 through hinge connection; four groups of interlocking pins 310 are integrally arranged on one side of the supporting plate 309; wherein, adjacent sides of the two sets of sliding frames 302 are provided with four sets of round and smooth holes, and the interlocking pins 310 can pass through the round and smooth holes of the sliding frames 302 for sliding connection; the interlocking pins 310 can be inserted into the pin holes 503 by clearance fit; the distance between the sliding shaft bracket 307 and the supporting plate 309 is larger than the length of the connecting lock pin 310; two groups of middle frames 4 are fixedly arranged on the front side of the top of the base 1; the middle frame 4 further comprises a side chute 401, a linkage shaft 402, a synchronizing gear 403 and a linkage gear 404; the middle of the two sides of the two groups of middle frames 4 are both provided with side sliding grooves 401, and the sliding strips 304 can be vertically arranged in the side sliding grooves 401 in a sliding manner; a linkage shaft 402 is rotatably arranged at the middle position of the two groups of middle frames 4, and the linkage shaft 402 is positioned at the outer side of the position between the two groups of middle frames 4 and is fixedly provided with a synchronous gear 403; the rear end of the linkage shaft 402 passes through the front partition frame 9 and is fixedly provided with a linkage gear 404; the tops of the two groups of middle frames 4 are fixedly provided with top seats 5; the top seat 5 further comprises a hexagonal guide rod 501, a tooth row 502 and a pin hole 503; two groups of hexagonal guide rods 501 are fixedly arranged between the bottom of the top seat 5 and the top of the base 1, and tooth rows 502 are arranged outside the hexagonal guide rods 501 in a sliding manner; two ends of the outer side of the gear row 502 are provided with four groups of pin holes 503; the positions of the two groups of tooth rows 502 are centrosymmetric by taking the synchronous gear 403 as an origin, and two sides of the synchronous gear 403 are meshed with the front-end racks of the two groups of tooth rows 502; the top of the rear side of the base 1 is fixedly provided with a front partition frame 9 and a rear partition frame 10, and the main bodies of the front partition frame 9 and the rear partition frame 10 are both in a T-shaped structure; two groups of rear frames 6 are fixedly arranged at two ends of the rear side of the top of the base 1, and a ventilation backrest 7 is fixedly arranged at the tops of the two groups of rear frames 6.

Wherein, the inner side of the ventilation backrest 7 is rotatably provided with a fan 8 by matching a rotating shaft through a bracket; two groups of driven shafts 11 are rotatably arranged between the two sides of the top of the front partition frame 9 and the rear partition frame 10; the front side of the driven shaft 11 is fixedly provided with inner ratchet gears 12, the rotation directions of the two groups of inner ratchet gears 12 are opposite, and the inner ratchet gears 12 are meshed with the linkage gear 404.

Wherein, the front side of the rear partition frame 10 is rotatably provided with a transmission shaft 13, and two sides of the transmission shaft 13 are in transmission connection with two groups of driven shafts 11 through bevel gears; a torque shaft 14 is rotatably arranged between the conduction shaft 13 and the ventilation backrest 7, the top end of the torque shaft 14 is in transmission connection with a bevel gear of the fan 8, the bottom end of the torque shaft 14 is in transmission connection with the conduction shaft 13 through the bevel gear, and the fan 8 can provide an auxiliary heat dissipation function.

The working principle is as follows: when in use, a player sits on the top of the footstock 5 and steps on the top of the pedal 301; when single-leg training is needed, the adjusting screw 306 in the sliding frame 302 connected with one group of pedals 301 which do not need to be stepped on for training is rotated, the adjusting screw 306 rotates to drive the sliding shaft frame 307 to move backwards by utilizing thread transmission, the supporting plate 309 is contracted by utilizing the connecting shaft 308, the connecting lock pin 310 is retracted to unlock the tooth row 502, and then the other group of pedals 301 are stepped on for leg training; when the pedal 301 is stepped on, the spring outside the guide rod 202 can automatically reset and provide elasticity, and convenience is provided for muscle training of the leg.

When two legs are needed to be coordinately trained, the two sets of tooth rows 502 are inserted into the pin holes 503 through the connecting lock pins 310 to be fixed, at the moment, the two sets of pedals 301 have the balance characteristic, the synchronizing gears 403 are meshed with the two sets of tooth rows 502, the right foot is inevitably lifted when the left foot is lowered, and convenience is provided for the coordinative training of track and field projects.

When the pedal 301 is stepped on, the interlocking pin 310 drives the gear row 502 to move, the gear row 502 drives the synchronous gear 403 to rotate, the synchronous gear 403 can drive the linkage gear 404 to rotate through the linkage shaft 402 no matter in the forward rotation or reverse rotation process, the linkage gear 404 drives the inner ratchet gear 12 to rotate, the inner ratchet gear 12 drives the driven shaft 11 to rotate respectively, the driven shaft 11 drives the transmission shaft 13 to rotate through the bevel gear, the transmission shaft 13 drives the torque shaft 14 to rotate through the bevel gear, the torque shaft 14 drives the fan 8 to rotate through the bevel gear to generate wind power, and therefore cooling and heat dissipation are achieved for trainees.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.