CN107961515B - Breaststroke training machine with ventilation training function - Google Patents

Breaststroke training machine with ventilation training function Download PDF

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Publication number
CN107961515B
CN107961515B CN201711429045.0A CN201711429045A CN107961515B CN 107961515 B CN107961515 B CN 107961515B CN 201711429045 A CN201711429045 A CN 201711429045A CN 107961515 B CN107961515 B CN 107961515B
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friction
pull rod
horizontal
hand
wheel
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CN107961515A (en
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胡超
唐刚
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Shenruo Kongyou Suzhou Intelligent Technology Co ltd
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Shenruo Kongyou Suzhou Intelligent Technology Co ltd
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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00Training appliances or apparatus for special sports
    • A63B69/10Swimming instruction apparatus for use without water

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  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
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  • Rehabilitation Tools (AREA)

Abstract

The invention discloses a breaststroke training machine with a ventilation training function, which relates to the field of land breaststroke training equipment and comprises a hand training unit, a leg training unit and a base, wherein the hand training unit is arranged at the head part of the base, the leg training unit is arranged at the tail part of the base, the hand training unit comprises a horizontal front friction pull rod, the horizontal front friction pull rod moves horizontally when the hand training unit moves, the leg training unit comprises a horizontal rear friction pull rod, the horizontal rear friction pull rod moves horizontally when the leg training unit moves, and the breaststroke training machine further comprises a ventilation training unit arranged in the middle of the base. The breaststroke training machine has the function of ventilation training, is convenient for a trainer to master the ventilation rhythm in land training, utilizes the telescopic movement of the body of the trainer to drive the ventilation training unit to work, generates resistance with the component of fluid resistance, more truly simulates the resistance in water, and is energy-saving and environment-friendly.

Description

Breaststroke training machine with ventilation training function
Technical Field
The invention relates to the field of land breaststroke training equipment, in particular to a breaststroke training machine with a ventilation training function.
Background
With the rapid development of social economy in recent years, the living standard of people is continuously improved, and a sports hot tide is formed in people. Particularly in developed cities such as wide and deep North, the living of substances is greatly satisfied, and meanwhile, the demands of people on healthy life are continuously increased, so that a great development space is provided for the development of sports consumer markets.
Breaststroke is a sport which can be used for training almost all muscle groups, and is frequently participated in breaststroke sport, so that the heart can be well trained, for example, the cardiac muscle is gradually developed, the contractility is gradually enhanced, and the cardiac function is correspondingly reinforced, thereby improving the metabolism of the human body. Breaststroke movement has a great influence on the respiratory system. Each breath in motion requires a large amount of inhaled oxygen and exhaled oxygen. After long-term breaststroke exercise, respiratory muscles are developed gradually, and the vital capacity is increased gradually.
Chinese patent CN104399245a discloses a breaststroke land trainer, which uses three-layer foot pedals to guide a trainer to realize foot motion training, but cannot guide the trainer to realize breathing rhythm training on land. Chinese patent CN102380199B discloses a breaststroke gesture training machine, which uses a rod to support limbs, and uses a spring to guide to correct the swimming track, but cannot correct the breathing rhythm.
Disclosure of Invention
Aiming at the technical problems, the invention overcomes the defects of the prior art, provides a breaststroke training machine with a ventilation training function, and solves the problem that ventilation training is lacking in the traditional breaststroke land training equipment.
In order to solve the technical problems, the invention provides a breaststroke training machine with a ventilation training function, which comprises a hand training unit, a leg training unit and a base, wherein the hand training unit is arranged at the head part of the base, the leg training unit is arranged at the tail part of the base, the hand training unit comprises a horizontal front friction pull rod, the horizontal front friction pull rod horizontally moves when the hand training unit moves, the leg training unit comprises a horizontal rear friction pull rod, the horizontal rear friction pull rod horizontally moves when the leg training unit moves, and the breaststroke training machine further comprises a ventilation training unit arranged at the middle part of the base;
the ventilation training unit comprises a support frame, a third air pipe and a mask, wherein one end of the third air pipe is communicated with the mask, a prone pad of a trainer is arranged at the top of the support frame, and the ventilation training unit also comprises a front ventilation module and a rear ventilation module which are arranged on the support frame;
the front ventilation module comprises two horizontal front friction pressing wheels, a first front friction wheel, a vertical front friction pressing wheel, a vertical front friction pull rod, a second front friction wheel, a front pull plate, a front air bag and a first air pipe, wherein one end of the vertical front friction pull rod is fixed with the front pull plate, the front pull plate can move up and down, the bottom of the front air bag is arranged on the front pull plate, the top of the front air bag is fixed on the support frame, and the two ends of the first air pipe are respectively communicated with the front air bag and the third air pipe; the horizontal front friction pinch roller, the front friction wheel I, the vertical front friction pinch roller and the front friction wheel II are rotatably arranged on the support frame, the front friction wheel I and the front friction wheel II are coaxially arranged, the horizontal front friction pinch roller and the front friction wheel I respectively prop against the top and the bottom of the horizontal front friction pull rod, and the horizontal front friction pull rod makes horizontal linear motion between the horizontal front friction pinch roller and the front friction wheel I and drives the front friction wheel I to rotate; the first front friction wheel rotates to drive the second front friction wheel to rotate and drive the vertical front friction pull rod to do vertical linear motion;
the rear ventilation module comprises two horizontal rear friction pressing wheels, a first rear friction wheel, a vertical rear friction pressing wheel, a vertical rear friction pull rod, a second rear friction wheel, a rear pull plate, a rear air bag and a second air pipe; one end of a vertical rear friction pull rod is fixed with a rear pull plate, the rear pull plate can move up and down, the bottom of a rear air bag is arranged on the rear pull plate, the top of the rear air bag is fixed on a support frame, and two ends of an air pipe II are respectively communicated with the rear air bag and an air pipe III; the horizontal rear friction pinch roller, the rear friction wheel I, the vertical rear friction pinch roller and the rear friction wheel II are rotatably arranged on the support frame, the rear friction wheel I and the rear friction wheel II are coaxially arranged, the horizontal rear friction pinch roller and the rear friction wheel I respectively prop against the top and the bottom of the horizontal rear friction pull rod, and the horizontal rear friction pull rod makes horizontal linear motion between the horizontal rear friction pinch roller and the rear friction wheel I and drives the rear friction wheel I to rotate; the second rear friction wheel and the vertical rear friction pinch roller are respectively abutted against two sides of the vertical rear friction pull rod, and the first rear friction wheel is driven to rotate and drive the vertical rear friction pull rod to do vertical linear motion when rotating.
The technical effects are as follows: the hand training unit is responsible for training hand strength, the leg training unit is responsible for training foot strength, the ventilation training unit is responsible for training breathing rhythm, the hand training unit has ventilation training function, a trainer can conveniently master ventilation rhythm in land training, the ventilation training unit is driven to work by means of telescopic motion of the body of the trainer, the generated resistance has components of fluid resistance, the resistance in water is simulated more truly, and the hand training unit is energy-saving and environment-friendly.
The technical scheme of the invention is as follows:
further, the hand training unit is provided with a bilateral symmetry structure, the left and right sides of the hand training unit respectively comprise a hand supporting rod system, an elbow supporting rod system, a hand supporting sliding block and a hand longitudinal guide rail, the bottoms of the hand supporting rod system and the elbow supporting rod system are hinged to the hand supporting sliding block, the hand supporting rod sliding block is connected in the hand longitudinal guide rail in a sliding mode, the hand longitudinal guide rail is arranged on the base, the side face of the hand supporting rod sliding block is fixed with one end of the horizontal front friction pull rod, and the hand training unit can achieve movement of hands in the three-dimensional direction.
The breaststroke training machine with the ventilation training function is characterized in that the side face of the hand support sliding block is hinged and fixed with the horizontal front friction pull rod, the base is provided with the hand limiter, and the degree of freedom of the horizontal front friction pull rod is limited by the hand limiter and only allowed to move forwards and backwards.
The leg training unit has a left-right symmetrical structure, the left and right sides of the leg training unit respectively comprise a foot supporting rod system, a foot supporting sliding block and a foot longitudinal guide rail, the bottom of the foot supporting rod system is hinged on the foot supporting sliding block, the foot supporting rod system is slidingly connected in the foot longitudinal guide rail, the foot longitudinal guide rail is arranged on the base, the side surface of the foot supporting rod system is fixed with one end of the horizontal rear friction pull rod, and the foot training unit can realize the movement of feet in the three-dimensional direction.
The side surface of the foot supporting sliding block is hinged and fixed with the horizontal rear friction pull rod, the foot limiter is arranged on the base, and the freedom degree of the horizontal rear friction pull rod is limited by the foot limiter and only allowed to move forwards and backwards.
The breaststroke training machine with the ventilation training function comprises an air filter, wherein the air filter is provided with an air outlet and two air inlets, the air inlets are respectively connected with the first air pipe and the second air pipe, and the air outlet is connected with the third air pipe.
The beneficial effects of the invention are as follows:
(1) According to the invention, the ventilation training unit is driven to work simultaneously through the movements of the hands and the legs, so that a trainer can train the ventilation rhythm in real time according to swimming actions, and the effect is very remarkable and real;
(2) The horizontal front friction pull rod and the horizontal rear friction pull rod are used for providing damping for the longitudinal movement of the hands and the feet, so that the training environment is more real.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present embodiment;
FIG. 2 is a schematic perspective view of the ventilation training unit of the present embodiment;
FIG. 3 is a front view of the ventilation training unit of the present embodiment;
FIG. 4 is a bottom view of the ventilation training unit of the present embodiment;
wherein: 1. a hand training unit; 101. a hand support bar system; 102. an elbow support bar system; 103. a hand support slider; 104. a hand longitudinal rail; 105. a horizontal front friction pull rod; 2. a ventilation training unit; 201. a support frame; 202. a horizontal front friction pinch roller; 203. a first front friction wheel; 204. a vertical front friction pinch roller; 205. a vertical front friction pull rod; 206. a second front friction wheel; 207. a front pulling plate; 208. a front airbag; 209. a first air pipe; 210. rubbing the pinch roller horizontally; 211. a first rear friction wheel; 212. a vertical rear friction pinch roller; 213. a vertical rear friction pull rod; 214. a second rear friction wheel; 215. a rear pulling plate; 216. a rear air bag; 217. a second air pipe; 218. an air filter; 219. a third air pipe; 220. a face mask; 3. a leg training unit; 301. a foot support bar system; 302. a foot support slider; 303. a foot longitudinal rail; 304. a horizontal rear friction pull rod; 4. a base; 401. a hand limiter; 402. foot limiters.
Detailed Description
The structure of the breaststroke training machine with the ventilation training function is shown in figures 1-4.
The breaststroke training machine comprises a hand training unit 1, a leg training unit 3 and a base 4, wherein the hand training unit 1 is arranged at the head of the base 4, the leg training unit 3 is arranged at the tail of the base 4, and the breaststroke training machine further comprises a ventilation training unit 2 arranged at the middle part of the base 4.
The hand training unit 1 has a bilateral symmetry structure, and can realize the motion of the hand in the three-dimensional direction, and the left and right sides thereof respectively comprise a hand support bar system 101, an elbow support bar system 102, a hand support sliding block 103 and a hand longitudinal guide rail 104. The hand supporting rod system 101 and the elbow supporting rod system 102 have the same structure as the hand structure and the elbow structure in the breaststroke gesture training machine described in the background art, and the bottoms of the hand supporting rod system 101 and the elbow supporting rod system 102 are hinged on the hand supporting sliding block 103. The hand support 201 is slidably connected to the hand longitudinal rail 104, and the hand longitudinal rail 104 is mounted on the base 4. The side of the hand support slide block 103 is hinged and fixed with one end of the horizontal front friction pull rod 105, a hand limiter 401 is arranged on the base 4, and the degree of freedom of the horizontal front friction pull rod 105 is limited by the hand limiter 401, so that only the front and back movement of the horizontal front friction pull rod is allowed.
The leg training unit 3 has a laterally symmetrical structure, and can realize the movement of the foot in the three-dimensional direction, and the left and right sides thereof respectively comprise a foot supporting bar system 301, a foot supporting slider 302 and a foot longitudinal guide 303. The foot support rod system 301 has the same leg structure and foot structure as those of the breaststroke trainer in the background art, the bottom of the foot support rod system is hinged on a foot support slide block 302, the foot support frame 201 slide block is connected in a foot longitudinal guide rail 303 in a sliding manner, and the foot longitudinal guide rail 303 is arranged on the base 4. The side of the foot supporting slide block 302 is hinged and fixed with one end of the horizontal rear friction pull rod 304, a foot limiter 402 is arranged on the base 4, and the freedom degree of the horizontal rear friction pull rod 304 is limited by the foot limiter 402, so that only the front and rear movement of the horizontal rear friction pull rod 304 is allowed.
The ventilation training unit 2 comprises a third air pipe 219, a mask 220 and an air filter 218, wherein the air filter 218 is provided with an air outlet and two air inlets, one end of the third air pipe 219 is communicated with the mask 220, and the other end of the third air pipe 219 is connected with the air outlet of the air filter 218. The ventilation training unit 2 further comprises a support 201, a front ventilation module and a rear ventilation module which are arranged on the support 201, and a prone pad of a trainer is arranged on the top of the support 201.
The front ventilation module comprises two horizontal front friction wheels 202, a first front friction wheel 203, a vertical front friction wheel 204, a vertical front friction pull rod 205, a second front friction wheel 206, a front pull plate 207, a front air bag 208 and a first air pipe 209. One end of the vertical front friction pull rod 205 is fixed with the front pull plate 207, the front pull plate 207 can move up and down, the bottom of the front air bag 208 is arranged on the front pull plate 207, the top of the front air bag 208 is fixed on the supporting frame 201, and two ends of the air pipe I209 are respectively communicated with the front air bag 208 and the air pipe III 219. The horizontal front friction pressing wheel 202, the first front friction wheel 203, the vertical front friction pressing wheel 204 and the second front friction wheel 206 are rotatably arranged on the support frame 201, the first front friction wheel 203 and the second front friction wheel 206 are coaxially arranged, the horizontal front friction pressing wheel 202 and the first front friction wheel 203 respectively abut against the top and the bottom of the horizontal front friction pull rod 105, and the horizontal front friction pull rod 105 makes horizontal linear motion between the horizontal front friction pressing wheel 202 and the first front friction wheel 203 and drives the first front friction wheel 203 to rotate; the second front friction wheel 206 and the vertical front friction wheel 204 respectively abut against two sides of the vertical front friction pull rod 205, and when the first front friction wheel 203 rotates, the second front friction wheel 206 is driven to rotate and the vertical front friction pull rod 205 is driven to do vertical linear motion.
The rear ventilation module comprises two horizontal rear friction pressing wheels 210, a first rear friction wheel 211, a vertical rear friction pressing wheel 212, a vertical rear friction pull rod 213, a second rear friction wheel 214, a rear pull plate 215, a rear air bag 216 and a second air pipe 217. One end of the vertical rear friction pull rod 213 is fixed with a rear pull plate 215, the rear pull plate 215 can move up and down, the bottom of the rear air bag 216 is arranged on the rear pull plate 215, the top of the rear air bag 216 is fixed on the supporting frame 201, and two ends of the air pipe II 217 are respectively communicated with the rear air bag 216 and the air pipe III 219. The horizontal rear friction pressing wheel 210, the first rear friction wheel 211, the vertical rear friction pressing wheel 212 and the second rear friction wheel 214 are rotatably arranged on the support frame 201, the first rear friction wheel 211 and the second rear friction wheel 214 are coaxially arranged, the horizontal rear friction pressing wheel 210 and the first rear friction wheel 211 respectively abut against the top and the bottom of the horizontal rear friction pull rod 304, and the horizontal rear friction pull rod 304 makes horizontal linear motion between the horizontal rear friction pressing wheel 210 and the first rear friction wheel 211 and drives the first rear friction wheel 211 to rotate; the second rear friction wheel 214 and the vertical rear friction wheel 212 respectively abut against two sides of the vertical rear friction pull rod 213, and when the first rear friction wheel 211 rotates, the second rear friction wheel 214 is driven to rotate and the vertical rear friction pull rod 213 is driven to do vertical linear motion.
The horizontal front friction pinch roller 202 is used for pressing the horizontal front friction pull rod 105 onto the first front friction wheel 203, the first front friction wheel 203 converts the horizontal linear motion of the horizontal front friction pull rod 105 into rotary motion, and the motion is transmitted to the second front friction wheel 206; the vertical front friction pinch roller 204 presses the vertical front friction pull rod 205 onto the front friction wheel two 206, and the front friction wheel two 206 is used for driving the vertical front friction pull rod 205 to move up and down, so that the volume of the front air bag 208 is changed. The horizontal rear friction pinch roller 210 presses the horizontal rear friction pull rod 304 onto the first rear friction wheel 211, the first rear friction wheel 211 converts the horizontal linear motion of the horizontal rear friction pull rod 304 into rotary motion, and the motion is transmitted to the second rear friction wheel 214; the vertical rear friction pinch roller 212 is used for pressing the vertical rear friction pull rod 213 onto the rear friction wheel two 214, and the rear friction wheel two 214 is used for driving the vertical rear friction pull rod 213 to move up and down, so that the volume of the rear air bag 216 is changed. The air purifier is used to purify the breathing air and the mask 220 is used to form a relatively airtight chamber at the respiratory system of the trainer.
The working principle of the ventilation training unit is as follows: the horizontal front friction pinch roller 202 presses the horizontal front friction pull rod 105 on the first front friction wheel 203, the horizontal front friction pull rod 105 drives the first front friction wheel 203 to rotate, and the second front friction wheel 206 rotates along with the first front friction wheel 203; the vertical front friction pinch roller 204 presses the vertical front friction pull rod 205 on the front friction wheel two 206, and the front friction wheel two 206 drives the vertical front friction pull rod 205 to move up and down; the vertical front friction pull rod 205 drives the front pull plate 207 to move up and down, and the front pull plate 207 drives the front air bag 208 to change volume. The horizontal rear friction pinch roller 210 presses the horizontal rear friction pull rod 304 on the first rear friction wheel 211, the horizontal rear friction pull rod 304 drives the first rear friction wheel 211 to rotate, and the second rear friction wheel 214 rotates along with the first rear friction wheel 211; the vertical rear friction pinch roller 212 presses the vertical rear friction pull rod 213 on the second rear friction wheel 214, and the second rear friction wheel 214 drives the vertical rear friction pull rod 213 to move up and down; the vertical rear friction pull rod 213 drives the rear pull plate 215 to move up and down, and the rear pull plate 215 drives the rear air bag 216 to change the volume. Through the volume change of the front air bag 208 and the rear air bag 216, positive pressure and negative pressure are alternately generated at the mask 220 part according to the movement rhythm of the trainer, the trainer breathes easily and exhales difficultly when the positive pressure is generated at the mask 220 part of the trainer, the trainer breathes easily and exhales difficultly when the negative pressure is generated, and the trainer gradually executes the breathing mode which is easy to perform, so that the ventilation training task is realized.
The working principle of the invention is described below in connection with a specific example of breaststroke movement:
and (3) a preparation stage of loading: first, the trainer lies on the prone pad on the top of the support frame 201, brings the mask 220 on, puts the hands on the hand support bar system 101 and the elbow support bar system 102 and fixes them by the straps, and pedals on the foot support bar system 301 and fixes them by the straps.
Body straightening stage: deeply sucking a breath; the hand drives the hand support slide block 103 to move forwards along the hand longitudinal guide rail 104, the hand support slide block 103 drives the horizontal front friction pull rod 105 to move forwards, the horizontal front friction pull rod 105 drives the first front friction wheel 203 to rotate anticlockwise, the second front friction wheel 206 follows the first front friction wheel 203 to rotate, the second front friction wheel 206 drives the vertical front friction pull rod 205 to move downwards, the vertical front friction pull rod 205 drives the front pull plate 207 to move downwards, and the volume of the front air bag 208 is increased; simultaneously, the foot drives the foot supporting slide block 302 to move backwards along the foot longitudinal guide rail 303, the foot supporting slide block 302 drives the horizontal rear friction pull rod 304 to move backwards, the horizontal rear friction pull rod 304 drives the rear friction wheel I211 to rotate clockwise, the rear friction wheel II 214 follows the rear friction wheel I211 to rotate, the rear friction wheel II 214 drives the vertical rear friction pull rod 213 to move downwards, the vertical rear friction pull rod 213 drives the rear pull plate 215 to move downwards, and the volume of the rear air bag 216 is increased. The volumes of the front bladder 208 and the rear bladder 216 are increased, and a negative pressure is formed at the mask 220, at which time the trainer exhales easily, and thus exhales.
Body contraction phase: the hand drives the hand support slide block 103 to move backwards along the hand longitudinal guide rail 104, the hand support slide block 103 drives the horizontal front friction pull rod 105 to move backwards, the horizontal front friction pull rod 105 drives the front friction wheel I203 to rotate clockwise, the front friction wheel II 206 follows the front friction wheel I203 to rotate, the front friction wheel II 206 drives the vertical front friction pull rod 205 to move upwards, the vertical front friction pull rod 205 drives the front pull plate 207 to move upwards, and the front air bag 208 is small in volume; simultaneously, the foot drives the foot supporting slide block 302 to move forwards along the foot longitudinal guide rail 303, the foot supporting slide block 302 drives the horizontal rear friction pull rod 304 to move forwards, the horizontal rear friction pull rod 304 drives the first rear friction wheel 211 to rotate anticlockwise, the second rear friction wheel 214 rotates along with the first rear friction wheel 211, the second rear friction wheel 214 drives the vertical rear friction pull rod 213 to move upwards, the vertical rear friction pull rod 213 drives the rear pull plate 215 to move upwards, and the volume of the rear air bag 216 is reduced. The volumes of the front bladder 208 and the rear bladder 216 decrease, creating a positive pressure at the face mask 220, at which time the trainer inhales easily, thus inhaling.
The invention has the function of ventilation training, is convenient for a trainer to master ventilation rhythm in land training, utilizes the telescopic motion of the body of the trainer to drive the ventilation training unit 2 to work, generates resistance with fluid resistance components, more truly simulates the resistance in water, and is energy-saving and environment-friendly.
In addition to the embodiments described above, other embodiments of the invention are possible. All technical schemes formed by equivalent substitution or equivalent transformation fall within the protection scope of the invention.

Claims (6)

1. The utility model provides a breaststroke training machine with training function takes a breath, includes hand training unit (1), shank training unit (3) and base (4), the head of base (4) is located in hand training unit (1), the afterbody of base (4) is located in shank training unit (3), its characterized in that: the hand training unit (1) comprises a horizontal front friction pull rod (105), the horizontal front friction pull rod (105) horizontally moves when the hand training unit (1) moves, the leg training unit (3) comprises a horizontal rear friction pull rod (304), the horizontal rear friction pull rod (304) horizontally moves when the leg training unit (3) moves, and the hand training unit further comprises a ventilation training unit (2) arranged in the middle of the base (4);
the ventilation training unit (2) comprises a support frame (201), an air pipe III (219) and a mask (220), one end of the air pipe III (219) is communicated with the mask (220), a prone pad of a trainer is arranged at the top of the support frame (201), and the ventilation training unit (2) further comprises a front ventilation module and a rear ventilation module which are arranged on the support frame (201);
the front ventilation module comprises two horizontal front friction pressing wheels (202), a first front friction wheel (203), a vertical front friction pressing wheel (204), a vertical front friction pull rod (205), a second front friction wheel (206), a front pull plate (207), a front air bag (208) and a first air pipe (209), wherein one end of the vertical front friction pull rod (205) is fixed with the front pull plate (207), the front pull plate (207) can move up and down, the bottom of the front air bag (208) is arranged on the front pull plate (207), the top of the front air bag is fixed on a supporting frame (201), and two ends of the first air pipe (209) are respectively communicated with the front air bag (208) and the third air pipe (219); the horizontal front friction pressing wheel (202), the front friction wheel I (203), the vertical front friction pressing wheel (204) and the front friction wheel II (206) are rotatably arranged on the supporting frame (201) and the front friction wheel I (203) and the front friction wheel II (206) are coaxially arranged, the horizontal front friction pressing wheel (202) and the front friction wheel I (203) are respectively abutted against the top and the bottom of the horizontal front friction pull rod (105), and the horizontal front friction pull rod (105) horizontally moves in a straight line between the horizontal front friction pressing wheel (202) and the front friction wheel I (203) and drives the front friction wheel I (203) to rotate; the front friction wheel II (206) and the vertical front friction pressing wheel (204) are respectively abutted against two sides of the vertical front friction pull rod (205), and when the front friction wheel I (203) rotates, the front friction wheel II (206) is driven to rotate and the vertical front friction pull rod (205) is driven to do vertical linear motion;
the rear ventilation module comprises two horizontal rear friction pressing wheels (210), a first rear friction wheel (211), a vertical rear friction pressing wheel (212), a vertical rear friction pull rod (213), a second rear friction wheel (214), a rear pull plate (215), a rear air bag (216) and a second air pipe (217); one end of the vertical rear friction pull rod (213) is fixed with a rear pull plate (215), the rear pull plate (215) can move up and down, the bottom of the rear air bag (216) is arranged on the rear pull plate (215), the top of the rear air bag is fixed on the supporting frame (201), and two ends of the air pipe II (217) are respectively communicated with the rear air bag (216) and the air pipe III (219); the horizontal rear friction pressing wheel (210), the rear friction wheel I (211), the vertical rear friction pressing wheel (212) and the rear friction wheel II (214) are rotatably arranged on the supporting frame (201) and the rear friction wheel I (211) and the rear friction wheel II (214) are coaxially arranged, the horizontal rear friction pressing wheel (210) and the rear friction wheel I (211) are respectively abutted against the top and the bottom of the horizontal rear friction pull rod (304), and the horizontal rear friction pull rod (304) makes horizontal linear motion between the horizontal rear friction pressing wheel (210) and the rear friction wheel I (211) and drives the rear friction wheel I (211) to rotate; the second rear friction wheel (214) and the vertical rear friction pinch roller (212) are respectively abutted against two sides of the vertical rear friction pull rod (213), and the first rear friction wheel (211) drives the second rear friction wheel (214) to rotate and drives the vertical rear friction pull rod (213) to do vertical linear motion when rotating.
2. A breaststroke trainer with ventilation training function as claimed in claim 1, wherein: the hand training unit (1) is provided with a bilateral symmetry structure, the left and right sides of the hand training unit respectively comprise a hand supporting rod system (101), an elbow supporting rod system (102), a hand supporting sliding block (103) and a hand longitudinal guide rail (104), the bottoms of the hand supporting rod system (101) and the elbow supporting rod system (102) are hinged to the hand supporting sliding block (103), the hand supporting sliding block (103) is slidably connected in the hand longitudinal guide rail (104), the hand longitudinal guide rail (104) is arranged on the base (4), the side face of the hand supporting sliding block (103) is fixed with one end of a horizontal front friction pull rod (105), and the hand training unit (1) can realize the motion of hands in the three-dimensional direction.
3. A breaststroke trainer with ventilation training function as claimed in claim 2, wherein: the side of the hand support sliding block (103) is hinged and fixed with the horizontal front friction pull rod (105), the base (4) is provided with a hand limiter (401), and the degree of freedom of the horizontal front friction pull rod (105) is limited by the hand limiter (401) and only allowed to move forwards and backwards.
4. A breaststroke trainer with ventilation training function as claimed in claim 1, wherein: the leg training unit (3) is provided with a bilateral symmetry structure, the left and right sides of the leg training unit respectively comprise a foot supporting rod system (301), a foot supporting sliding block (302) and a foot longitudinal guide rail (303), the bottom of the foot supporting rod system (301) is hinged to the foot supporting sliding block (302), the foot supporting sliding block (302) is slidably connected in the foot longitudinal guide rail (303), the foot longitudinal guide rail (303) is installed on the base (4), the side surface of the foot supporting sliding block (302) is fixed with one end of a horizontal rear friction pull rod (304), and the foot training unit can realize the motion of feet in the three-dimensional direction.
5. A breaststroke trainer as claimed in claim 4 wherein: the side face of the foot supporting sliding block (302) is hinged and fixed with the horizontal rear friction pull rod (304), the foot limiter (402) is arranged on the base (4), and the degree of freedom of the horizontal rear friction pull rod (304) is limited by the foot limiter (402) and only allowed to move forwards and backwards.
6. A breaststroke trainer with ventilation training function as claimed in claim 1, wherein: the ventilation training unit (2) further comprises an air filter (218), the air filter (218) is provided with an air outlet and two air inlets, the air inlets are respectively connected with the first air pipe (209) and the second air pipe (217), and the air outlet is connected with the third air pipe (219).
CN201711429045.0A 2017-12-26 2017-12-26 Breaststroke training machine with ventilation training function Active CN107961515B (en)

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CN107961515B true CN107961515B (en) 2023-11-10

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