CN110585680A - Land trainer for free swimming - Google Patents

Abstract

The invention provides a freestyle land training device. A rotating support frame 1 and a rotating support frame 2 are respectively arranged on both sides of the base. A central rod is set under the back rest board and groove cylinders are respectively arranged on both sides of the bottom. The upper ends of the rotating support frame 1 and the rotating support frame 2 are set in the groove drums to move up and down and respectively drive the front board and the rear board to rotate left and right along the center rod. Telescopic guide rails are arranged on both sides of the front deck, and pulleys are arranged in the telescopic guide rails, and gloves and pull wires are connected to the pulleys; wind dampers and pull wire rods are arranged at one end of the base, and a speed sensor is arranged in the wind dampers. A transmission wheel is provided; a cable pulley is arranged on the cable rod, the cable on the pulley bypasses the cable wheel, and the drive wheel is connected to a tension sensor to connect with the elastic cable. The invention can truly simulate the teaching and training of the optimal arm stroke in water, and collect the matching data of the arm stroke and the swivel body to facilitate teaching.

Description

A freestyle land training device

technical field

The invention belongs to the field of sports equipment, in particular to a freestyle land training device.

Background technique

Freestyle is one of the swimming competitions. Freestyle is a swimming style in which the arms move from the surface of the water to stroke underwater, and the two arms are constantly alternated. The swimming speed of an athlete mainly provides 85% of the total thrust through upper body strokes, and the difference in swimming speed between kicking and non-kicking is only about 10%. Therefore, the stroke of the two arms is very important for the performance of freestyle swimming. At the same time, the two arms need to cooperate with the turning to better complete the technical movements.

From freestyle teaching, we can know that freestyle movements are divided into freestyle arm movements and freestyle body rotation movements. Freestyle arm movements: 1) Entering the water: After the arm moves in the air, the upper arm is rotated inward, the fingers are straightened and close together naturally, and the palm is naturally inserted into the water obliquely outward and downward in the posture of high elbow and low hand; 2) Holding water: palm After the palm starts to turn from oblique outward to downward obliquely inward, gradually bend the elbow and wrist, and the elbow is always higher than the arm; 3) Stroke: the arm cooperates with the rotation of the shoulder, the upper arm rotates inward, drives the forearm, bends Gradually straighten your arms towards your thighs and stroke the water, turn your palms from the inner bottom to the upper slopes, and stroke your thighs from bottom to top; 4) Out of the water: turn your palms to your thighs, first draw your fingers out of the water, and bend your elbows slightly , the arm is relaxed, the upper arm drives the forearm, the elbow is lifted up, and the palm turns to the back and upper. The whole water discharge process must be continuous and fast without stopping; The arm moves forward to the front of the body. The hand feels like it is about to plunge into the water, and prepares for the next entry into the water; the movement of freestyle body rotation: from the beginning of the water-holding movement, the body embraces the water-side arm with the water-holding movement Rotate until it reaches the maximum angle (19.7 degrees for men and 24 degrees for women is the best angle) when the water movement is completed, and then turn back to the horizontal position as the arm moves in the air.

At present, in the freestyle training, the standing position on land and the inclining position of the body in the water are used for decomposing exercises. In the early stage of learning or when technical movements are improved, these exercises are too abstract and the effect is not good. The existing open land swimming simulator, because it does not have a specific track for the freestyle stroke, cannot correct the action well and complete the cooperation of the stroker and the turn, and cannot reach the action stereotypes and standards of a good standard arm stroke action. Muscle memory training for arm strokes.

Freestyle and breaststroke are two of the most commonly used swimming styles for public swimming and fitness. Unlike breaststroke, the land-curved arm training in freestyle teaching is more abstract and difficult to understand. Arm technique and practice are particularly important for freestyle training, but for beginners For scholars or sports enthusiasts, there is no good auxiliary equipment for improving the freestyle arm stroke technique. Especially for swimming teaching, the coordination of freestyle curved arm stroke teaching and turning is a difficult point in freestyle teaching.

Contents of the invention

The problem to be solved by the present invention is the difficulty in the freestyle teaching of freestyle curved arm stroke teaching and the coordination of turning around in freestyle swimming training. There is no specific track correction action on land and the coordination of rowing hands and turning is completed, so as to achieve standard arm strokes. Muscle memory training of stereotyped and standard arm strokes, providing a freestyle land training device, which can truly simulate the best underwater arm strokes, realize the coordination of strokes and rotations, and the index data of strokes, used for freestyle land The swimming stroke teaching and training are convenient and effective.

In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: a freestyle land training device, including a base, characterized in that: a rotating support frame 1 and a rotating support frame 2 are respectively arranged on both sides of the base, and the rotating support frame A front deck is set on the frame one, a rear deck is set on the rotating support frame two, and a center rod is set under the front deck and the back deck;

Groove tubes are arranged on both sides of the bottom of the front deck, and the upper end of the rotating support frame is set in the slot tube to move up and down and drive the front deck to rotate left and right along the center rod; grooves are respectively set on both sides of the back deck. cylinder, the two upper ends of the rotating support frame are set in the groove cylinder and can move up and down and drive the rear deck to rotate left and right along the central rod;

Both sides of the front deck are respectively provided with telescopic guide rails, and pulleys are arranged in the telescopic guide rails, and gloves and pull wires are connected to the pulleys;

One end of the base is provided with a wind resistance device and a pull rod, and the wind resistance device is provided with a wind impeller rotating shaft, a wind impeller, and a speed sensor, and a transmission wheel is arranged on the wind blade rotation shaft; the transmission wheel drives the wind blade rotation shaft and the wind impeller to rotate, The pulley is provided with a pulley on the pulley, and the pulley goes around on the telescopic guide track, and the pulley on the pulley goes around the pulley, and the transmission wheel is connected with the elastic pulley.

Preferably, the rotating support frame 1 includes a fixed rod, a free rod 1, an oval wheel 1 and a rotating shaft, a fixed rod is set on the base, a lower roller is set at one end of the fixed rod, and an upper roller is set at one end of the free rod 1. Roller, described ellipse wheel one is arranged between upper roller, lower roller and rolls, and the other end of described free rod one is sleeved in the groove tube and can move up and down and drives front deck board to rotate left and right along center bar.

Preferably, the rotating support frame 2 includes a fixed rod, a free rod 2, an oval wheel 2 and a rotating shaft, a fixed rod is set on the base, a lower roller is set at one end of the fixed rod, and an upper roller is set at one end of the free rod 2. Roller, described ellipse wheel 2 is arranged between upper roller, lower roller and rolls, and described free rod 2 other ends are sleeved in the groove tube and can move up and down and drive back deck to rotate left and right along center bar.

As a preference, transmission connecting rods are installed between the rotating shafts on both sides of the front deck and the rear deck, the first oval wheel and the second oval wheel are respectively installed on the rotating shafts and driven by a motor transmission device, and the front deck , The left and right rotation angles of the back rest board can be adjusted according to different angles, and the rotation frequency is consistent.

Preferably, the upper pulley wire is a non-elastic wire.

Preferably, the pulling wire on the pulley bypasses the pulling wheel, and the transmission wheel is connected to the tension sensor to connect with the elastic pulling wire.

Preferably, the elastic pull wires include elastic metal wires, elastic metal plates and the like.

Preferably, a face is provided at the front of the front reclining board, a strap is provided at the rear of the front reclining board; a lower limb immobilization device is provided on the rear reclining board.

Preferably, the rotational speed sensor and the tension sensor are respectively connected to a computer system.

The advantages and positive effects that the present invention has are:

1. The freestyle land training device of the present invention, due to the setting of the front and rear decks, the central rod and the rotatable support frame, the telescopic guide track consistent with the stroke of the freestyle arm, the length of the front and back decks is the same as the prone position of the practitioner Matching, can be adjusted according to the height of the user, the rotating support frame drives the front and rear decks to have different rotation angles and the rotation angles can be adjusted, but the rotation frequency is the same; the telescopic guide track is consistent with the researched best freestyle stroker route, It can be stretched and adjusted according to the arm length of different users; the practitioner lies prone on the trainer, can train the standard arm strokes of freestyle strokes, learn and improve the strokes of freestyle strokes, and the body should hold, stroke, and exit the water in strokes , the speed change and the resistance change of moving the arm in the air and entering the water, so as to achieve the action shaping of the standard arm stroke and the muscle memory training of the standard arm stroke.

2. The freestyle land training device of the present invention, since groove cylinders are respectively arranged on both sides below the front and rear decks, the rotating support frame drives the elliptical wheel and the rotating shaft through the motor transmission device, so that the upper ends of the first free rod and the second free rod are respectively set on the The tank can move up and down; at the same time, the rotating support frame rolls between the upper roller and the lower roller by setting the elliptical wheel, so that the free rod 1 and the free rod 2 are respectively set in the tank and can move up and down while driving the front deck and the rear deck. The boards rotate left and right along the center rod respectively. The control of the left and right rotation angles of the front board is different from the control of the left and right rotation angles of the rear board, but the rotation frequency is the same. Start the motor and select the slow gear to train freestyle arm strokes The left and right turns during the standard arm stroke.

3. In the freestyle land training device of the present invention, since the two sides of the front deck are respectively provided with telescopic guide rails for training the left and right arms of the practitioner, pulleys and pulleys are installed in the telescopic guide rails, and the drive wheel drives the rotating shaft of the wind impeller and the wind impeller Rotation, wind resistance conduction resistance, speed sensor and tension sensor can test the change of speed and resistance of each body position. The practitioner puts his hands on the gloves to drive the pulley to go around the telescopic guide track, and the cable goes around the cable wheel and the transmission wheel. Connecting the tension sensor to the elastic cable, the practitioner can learn and improve the freestyle arm stroke through the cooperation between the standard arm stroke of the freestyle stroke and the body rotation, so as to achieve the finalization of the action mode of the fast stroke.

4. The freestyle land training device of the present invention can make the practitioner lie prone on the training device, and can train the standard arm stroke and turn-around coordination movements of the freestyle stroke. The speed of the fast and slow gears is controlled by the motor transmission device, and the training is obtained through the rotational speed sensor and the wind sensor. Index data can be used not only for beginners to learn action patterns, but also for land-specific strength training for professional athletes.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a structural front view of the present invention;

Fig. 3 is a structural schematic diagram of a rotating support frame of the present invention

Fig. 4 is the top view of the structure of the rotating support frame and the motor transmission device of the present invention;

Fig. 5-7 is that the trainer of the present invention uses telescoping guide track arm movement trajectory schematic diagram;

Fig. 8 is the structural representation of glove, backguy and pulley of the present invention;

1-Telescopic guide rail, 2-Face, 3-Bandage, 4-Front deck, 5-Lower limb fixation device, 6-Back deck, 7-Slot tube, 8-Oval wheel 2, 9-Rotation support Frame two, 10-elliptical wheel one, 11-rotating support frame one, 12-base, 13-drive wheel, 14-wind resistance device, 15-guy wheel, 16-guy rod, 17-guy line, 18-pulley, 19- Gloves, 20-center rod, 21-rotation shaft, 22-elastic pull wire, 23-tension sensor, 24-fixed rod, 25-transmission connecting rod, 26-free rod one, 26'-free rod two, 27-speed sensor , 28-wind impeller rotating shaft, 29-upper roller, 30-lower roller, 31-motor transmission.

Detailed ways

The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings.

Referring to Fig. 1-8, the present invention provides a freestyle land training device.

Freestyle land training device, base 12 is made with base plate and support pin, or directly adopts base platform, and base 12 both sides are installed rotating support frame one 11, rotating support frame two 9 respectively, and rotating support frame one 11 is installed before lying down Plate 4, rear deck board 6 is installed on the rotating support frame two 9, front deck board 4 and rear deck board 6 match with the practitioner's prone posture, upper body prone front deck board 4 and lower body prone back deck board 6, front deck board 4 A central rod 20 is installed below the rear deck 6 and the front deck 4 and the rear deck 6 are on the same plane and rotate along the center bar 20; The upper body of the practitioner is breathed on the front reclining board 4 with straps 3, which is convenient for binding the upper body of the practitioner; the lower limb fixing device 5 is installed on the rear reclining board 6, which is a safety baffle, and the baffle is arc-shaped, which fits the body for binding exercises lower body.

Grooves 7 are respectively installed on both sides below the front deck 4, the groove shape of the slots 7 is arranged in the left and right directions, and the upper end of the rotating support frame 11 is set in the slots 7 to move up and down and drive the front deck 4 along the center rod 20 Rotate; Groove cylinder 7 is respectively installed on both sides below the back rest board 6, and the upper end of the rotating support frame two 9 is sleeved in the groove drum 7 and can move up and down and drives the back rest board 6 to rotate left and right along the central rod 20.

Rotating support frame-11 is made up of fixed rod 24, free rod-26, oval wheel-10 and rotating shaft 21, and fixed rod 24 is installed on the base 12, and lower roller 30 is installed on the other end of fixed rod 24, and oval wheel-10 is arranged on lower roller Roll on 30, free rod one 26 one ends are installed with roller 29, and upper roller 29 is arranged on oval wheel one 10 and rolls, and free rod one 26 other ends are sleeved in groove cylinder 7 and can move left and right in the groove, move up and down in the cylinder, That is, free rod one 26 drives the front deck 4 to rotate left and right along the central rod 20.

Rotating support frame two 9 is made up of fixed rod 24, free rod two 26 ', oval wheel two 8 and rotating shaft 21, fixed rod 24 is installed on the base 12, lower roller 30 is installed on the fixed rod 24 other ends, and oval wheel two 8 is arranged on Roll on the roller 30, the free rod two 26 ' one end is installed with the upper roller 29, and the upper roller 29 is arranged on the oval wheel two 8 to roll, and the free rod two 26 ' other end is set in the groove cylinder 7 and can move left and right in the groove, in the cylinder Move up and down, that is, the free rod two 26 ' drives the back rest board 6 to rotate left and right along the central rod 20.

The transmission connecting rod 25 is installed between the rotating shafts 21 on both sides of the front lying board 4 and the rear lying board 6, and the oval wheel one 10 and the oval wheel two 8 are respectively installed on the rotating shaft 21 and driven by the motor transmission device 31. The front lying board 4 1. The left and right rotation angles of the rear reclining board 6 are different and adjustable and the rotation frequency is consistent; the left and right rotation angles of the front reclining board 4 and the angle formed by the level can be selected as 19.7 degrees for boys and 24 degrees for girls. The angle formed by the left and right rotation angle of the back rest board 6 and the level can be selected as two stalls of 6.9 degrees for girls and 12.5 degrees for boys.

Telescopic guide rails 1 are respectively installed on both sides of the front deck 4, pulleys 18 are arranged inside the telescopic guide rails 1, the inner side of the telescopic guide rails 1 and the pulley 18 are connected to a smooth surface, and the periphery of the telescopic guide rails 1 is made of flexible materials Wrap up pulley 18, be connected with glove 19, backguy 17 on the pulley 18;

One end of the base 12 is equipped with a wind resistance device 14 and a backguy 17 bar 16. The wind resistance device 14 mainly contains the wind impeller rotating shaft 28, the wind blade wheel, etc., and the speed sensor 27 is installed in the wind resistance device 14, and the transmission is installed on the wind blade wheel rotating shaft 28 at the wind resistance device 14 outer ends. Wheel 13, driving wheel 13 drives wind vane rotating shaft 28 and wind vane to rotate, and backguy 17 bar 16 is equipped with backguy 17 wheels 15, and pulley 18 detours in telescopic guide track 1, and backguy 17 walks around backguy 17 wheels 15 on pulley 18 , drive wheel 13 and access tension sensor 23 is non-elastic backguy 17, is connected with elastic backguy 22 again, and the transmission wheel 13 on the air resistance device 14 is a rough contact surface, and frictional transmission with backguy wire 17 makes non-elastic backguy 17 drive wind resistance device The impeller shaft of 14 and the wind impeller rotate, and the speed sensor 27 can transmit the wind impeller speed in time.

The backguy 17 is divided into elastic and non-elastic. From the pulley 18, the backguy 17 is connected to the backguy 17, the pulley 15, the transmission wheel 13, and then the tension sensor 23 is connected to the non-elastic line. The tension sensor 23 to the end of the backguy 17 is an elastic backguy. 22. The elastic pull wire 22 can be made of elastic metal wire, elastic metal plate, etc., and the tension sensor 23 can transmit the magnitude of the elastic force generated by the elastic pull wire 22 in time. The speed sensor and the tension sensor are respectively connected to the computer system, and the computer receives the signal and converts it into a number, and can perform data analysis and display on the speed and tension.

When using the freestyle land training device, adjust the speed of the motor according to the rotation speed of the body on the motor transmission device 31. The practitioner lies prone on the freestyle training device, and the face falls into the face 2. Plate 4, front rest board 4 lengths, adjust the size and the position of telescopic guide track 1 according to the user's height arm length. Put on gloves 19, fix the upper body with the front deck 4 straps 3, and the lower limb fixing device 5 of the back deck 6 fixes the lower body to prevent the body from slipping in rotation. Prepare the posture, straighten your hands forward, turn on the motor, and follow the rotation rhythm of the first rotating support frame and the second rotating support frame driven by the motor to perform freestyle arm stroke exercises. The best freestyle arm sliding path for high-level athletes studied in the stage, simulating the resistance change of the arm stroke in the water, learning and correcting the arm stroke during the slow stroke practice, performing the standard freestyle turn and stroke practice, and performing the fast stroke Specific strength training.

The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention, and cannot be considered as limiting the implementation scope of the present invention. All equal changes and improvements made according to the scope of the present invention are equivalent, and all should still belong to the scope covered by this patent.

Claims (9)

1. The utility model provides a freestyle land training ware, includes the base, its characterized in that: a first rotating support frame and a second rotating support frame are respectively arranged on two sides of the base, a front lying plate is arranged on the first rotating support frame, a rear lying plate is arranged on the second rotating support frame, and a central rod is arranged below the front lying plate and the rear lying plate;

the two sides of the lower surface of the front lying plate are respectively provided with a groove cylinder, and the upper end of the rotating support frame is sleeved in the groove cylinder and can move up and down and drive the front lying plate to rotate left and right along the central rod; the two sides of the lower surface of the rear lying plate are respectively provided with a groove cylinder, and the upper ends of the two rotating support frames are sleeved in the groove cylinders and can move up and down and drive the rear lying plate to rotate left and right along the central rod;

telescopic guide rails are respectively arranged on two sides of the front lying plate, pulleys are arranged in the telescopic guide rails, and gloves and pull wires are connected to the pulleys;

one end of the base is provided with a wind resistance device and a wire drawing rod, a wind impeller rotating shaft, a wind impeller and a rotating speed sensor are arranged in the wind resistance device, and a driving wheel is arranged on the wind impeller rotating shaft; the transmission wheel drives the wind impeller rotating shaft and the wind impeller to rotate, the wire drawing rod is provided with a wire drawing wheel, the pulley winds on the telescopic guide rail, the pull wire on the pulley winds the wire drawing wheel, and the transmission wheel is connected with the elastic pull wire.

2. The freestyle land trainer of claim 1, wherein: the first rotating support frame comprises a fixed rod, a first free rod, a first elliptical wheel and a rotating shaft, the fixed rod is arranged on the base, a lower roller is arranged at one end of the fixed rod, an upper roller is arranged at one end of the first free rod, the first elliptical wheel is arranged between the upper roller and the lower roller and rolls, and the other end of the first free rod is sleeved in the groove barrel and can move up and down and drive the front lying plate to rotate left and right along the central rod.

3. The freestyle land trainer of claim 1, wherein: the second rotating support frame comprises a fixed rod, a second free rod, a second elliptical wheel and a rotating shaft, the fixed rod is arranged on the base, a lower roller is arranged at one end of the fixed rod, an upper roller is arranged at one end of the second free rod, the second elliptical wheel is arranged between the upper roller and the lower roller and rolls, and the other end of the second free rod is sleeved in the groove barrel and can move up and down and drive the back lying plate to rotate left and right along the central rod.

4. The freestyle land trainer of claim 1, wherein: the front creeper and the rear creeper are provided with transmission connecting rods between two side rotating shafts, the first elliptical wheel and the second elliptical wheel are respectively installed on the rotating shafts and driven by a motor transmission device, and the left rotating angle and the right rotating angle of the front creeper and the rear creeper are different, adjustable and consistent in rotating frequency.

5. The freestyle land trainer of claim 1, wherein: the pull wire on the pulley is a non-elastic wire.

6. The freestyle land trainer of claim 1, wherein: the pulley is provided with a pull wire which bypasses the pull wire wheel, and the driving wheel is connected with the tension sensor and is connected with the elastic pull wire.

7. The freestyle land trainer of claim 1, wherein: the elastic pull wire comprises an elastic metal wire, an elastic metal plate and the like.

8. The freestyle land trainer of claim 1, wherein: the front part of the front lying plate is provided with a face hole, and the rear part of the front lying plate is provided with a binding band; and a lower limb fixing device is arranged on the rear lying plate.

9. An freestyle land trainer according to claims 1 and 6 in which: and the rotating speed sensor and the tension sensor are respectively connected to a computer system.