阅读说明：本技术 一种自由泳陆上训练器 (Land trainer for free swimming ) 是由 邓云锋 柏开祥 李春艳 杨威 王治华 褚子雯 焦垚清 于 2019-08-19 设计创作，主要内容包括：本发明提供一种自由泳陆上训练器,在底座两侧分别设置转动支撑架一、转动支撑架二,转动支撑架一、转动支撑架二上分别设置前躺板、后躺板,前躺板与后躺板下面设置中心杆且下面两侧分别设置槽筒,转动支撑架一、转动支撑架二上端套装在槽筒内可上下移动并分别带动前躺板、后躺板沿中心杆左右转动；前躺板两侧设置伸缩导引轨道,伸缩导引轨道内设置滑轮,滑轮上连接有手套、拉线；底座一端设置风阻器和拉线杆,风阻器内设置转速传感器,所述风叶轮转轴上设置传动轮；拉线杆上设置有拉线轮,滑轮上拉线绕过拉线轮、传动轮接入拉力传感器与弹性拉线连接。本发明可真实模拟最佳水中划臂动作教学训练,并收集划臂和转体的配合数据方便教学。(The invention provides a free swimming land trainer, wherein a first rotating support frame and a second rotating support frame are respectively arranged on two sides of a base, a front lying plate and a rear lying plate are respectively arranged on the first rotating support frame and the second rotating support frame, a central rod is arranged below the front lying plate and the rear lying plate, groove cylinders are respectively arranged on two sides of the lower surface of the front lying plate and the rear lying plate, and the upper ends of the first rotating support frame and the second rotating support frame are sleeved in the groove cylinders and can move up and down and respectively drive the front lying plate and the rear lying plate to rotate left and right along; the two sides of the front lying plate are provided with telescopic guide rails, pulleys are arranged in the telescopic guide rails, and the pulleys are connected with gloves and pull wires; one end of the base is provided with a wind resistance device and a wire drawing rod, a rotating speed sensor is arranged in the wind resistance device, and a rotating shaft of the wind impeller is provided with a driving wheel; the stay wire rod is provided with a stay wire wheel, the stay wire on the pulley bypasses the stay wire wheel, and the driving wheel is connected with the tension sensor and is connected with the elastic stay wire. The invention can truly simulate the optimal water arm-drawing action teaching training and collect the matching data of the arm-drawing and the rotating body for convenient teaching.)

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.

Technical Field

The invention belongs to the field of sports equipment, and particularly relates to a free swimming land trainer.

Background

Free swimming is one of swimming match items, and is a swimming gesture in which arms move from the water surface to cut water under water and the two arms continuously and alternately perform. The swimming speed of the athlete is mainly 85 percent of the total thrust provided by the upper limb stroke, and the difference between the swimming speed of the legging and the swimming speed of the non-legging is only about 10 percent. Therefore, the paddling of the two arms is very important for the achievement of the free swimming, and the two arms can be matched with the turning body to better complete the technical action.

From the freestyle teaching, freestyle motions are divided into freeplay arm motions and freestyle body rotation motions. Free swimming arm motion: 1) entering water: after the arms move in the air, the big arms rotate inwards, the fingers stretch straight and naturally gather together, and the palm is naturally inserted into the water towards the oblique lower part outside in the posture of high elbow and low hand; 2) carrying out water holding: after the palm center begins to change from the oblique direction to the oblique direction, gradually bending the elbow and the wrist, wherein the elbow is always higher than the arm; 3) paddling: the arms rotate in coordination with the shoulders, the big arms rotate inwards to drive the small arms, the bent arms gradually straighten the thighs to paddle water, the palm center is changed from the lower part in the oblique direction to the upper part in the oblique direction, and the thighs paddle water from bottom to top; 4) water outlet: the palm center turns to the thigh, the fingers firstly draw the water surface upwards, the elbow is slightly bent, the arms are relaxed, the big arm drives the small arm, the elbow part is lifted upwards, the palm center turns to the upper back, and the whole water outlet process needs to be coherent, quick and uninterrupted; 5) moving the arm in the air: the elbow is in a lifting state, the elbow is higher than the arm at the moment, the arm is moved towards the front of the body, the hand feels the action of inserting water, and the preparation of the next water-entering action is carried out; the action of free-swimming body rotation: from the beginning of the water holding action, the body rotates along with the water holding action to the arm on the water holding side until the body rotates to the maximum angle (19.7 degrees for men and 24 degrees for women) when the water outlet action is finished, and then the body rotates to the horizontal position along with the action of moving the arm in the air.

At present, in the free swimming training, the land standing position and the body inclined position in water are adopted for decomposition exercise, and the exercises are too abstract and have poor effect in the early learning stage or when the technical action is improved. The prior disclosed land swimming simulator can not achieve good action shaping of standard arm-drawing action and muscle memory training of standard arm-drawing action because of the lack of specific tracks for free swimming stroke which can not correct action and complete the cooperation of hand-drawing and body-turning.

Free swimming and breaststroke are two most commonly used swimming postures of mass swimming body building, different from breaststroke, land arm bending training of free swimming teaching is more abstract and unintelligible, arm technology and exercise are particularly important for the free swimming training, but no auxiliary instrument for better improving the technical action of the free swimming arm is provided for beginners or sports enthusiasts, and particularly for swimming teaching, the cooperation of free swimming arm bending teaching and turning is a difficult point in the free swimming teaching.

Disclosure of Invention

The invention aims to solve the problems that the free swimming stroke training is difficult to realize the free swimming stroke teaching of the free swimming curved arm stroke teaching and the matching of the rotation body, the land has no specific track correction action and completes the matching of the stroke arm and the rotation body, and the free swimming stroke trainer is provided for achieving the action shaping of the standard stroke arm action and the muscle memory training of the standard stroke arm action, can truly simulate the optimal stroke arm action in water, realizes the matching of the stroke arm and the rotation body and the index data of the stroke arm, and is convenient and effective for the free swimming stroke teaching and training on the land.

In order to solve the technical problems, the invention adopts the technical scheme that: 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.

Preferably, 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 cylinder and can move up and down and drive the front lying plate to rotate left and right along the central rod.

Preferably, the second rotating support frame comprises a fixing rod, a second free rod, a second elliptical wheel and a rotating shaft, the fixing rod is arranged on the base, a lower roller is arranged at one end of the fixing 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.

Preferably, a transmission connecting rod is installed between rotating shafts on two sides of the front lying plate and the rear lying plate, the first elliptical wheel and the second elliptical wheel are installed on the rotating shafts respectively and driven by a motor transmission device, and the left rotating angle and the right rotating angle of the front lying plate and the rear lying plate are different, adjustable and consistent in rotating frequency.

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

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

Preferably, the elastic pull wire includes an elastic metal wire, an elastic metal plate, and the like.

Preferably, 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 belt; and a lower limb fixing device is arranged on the rear lying plate.

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

The invention has the advantages and positive effects that:

1. the free-swimming land trainer is provided with the front and rear lying plates, the central rod, the rotatable support frame and the telescopic guide track which is consistent with the water drawn by the free-swimming arm, the lengths of the front and rear lying plates are matched with the prone posture of a practicer and can be adjusted according to the height of a user, and the rotatable support frame drives the front and rear lying plates to rotate at different angles and adjustable angles, but the rotation frequencies are consistent; the telescopic guide track is consistent with the researched optimal free swimming rower route, and can be telescopically adjusted according to the arm lengths of different users; the exerciser lies prostrate on the trainer, can train the standard arm-stroke action of the free stroke arm, learn and improve the arm-stroke action of the free stroke, and the speed change and the resistance change of the arm-stroke, such as water holding, water-stroke, water outlet, arm moving in the air, and water inlet, so as to achieve the action shaping of the standard arm-stroke action and the muscle memory training of the standard arm-stroke action.

2. The invention relates to a free swimming land trainer.A groove cylinder is respectively arranged at the two sides under a front lying plate and a back lying plate, and a rotating support frame drives an elliptical wheel and a rotating shaft through a motor transmission device, so that the upper ends of a first free rod and a second free rod are respectively sleeved in the groove cylinders and can move up and down; meanwhile, the rotating support frame rolls between the upper idler wheel and the lower idler wheel through the arrangement of the elliptical wheel, so that a first free rod and a second free rod are respectively sleeved in the groove barrel and can move up and down and simultaneously drive the front lying plate and the rear lying plate to respectively rotate left and right along the central rod, the left and right rotating angle control of the front lying plate is different from that of the rear lying plate, the rotating frequency is consistent, the motor is started, and the left and right rotating motion during the standard arm stroke motion of the free swimming stroke arm can be trained by selecting a low-speed gear.

3. The invention relates to a free-swimming land trainer, wherein telescopic guide tracks are respectively arranged on two sides of a front lying plate and used for training left and right arms of a practicer, pulleys and pull wires are arranged in the telescopic guide tracks, a driving wheel drives a fan impeller rotating shaft and a fan impeller to rotate, a resistance is transmitted by a fan resistor, a rotating speed sensor and a tension sensor can test the speed and resistance change of each body position, two hands of the practicer are respectively sleeved on gloves to drive the pulleys to wind the telescopic guide tracks, the pull wires wind the pull wires, the drive wheel is connected with the tension sensor and an elastic pull wire, the practicer can freely stroke the standard arm action of a arm and match the body rotation, learn and improve the arm action of free swimming, so that the action mode shaping during fast arm-rowing is achieved.

4. The free-swimming land trainer can enable a practicer to lie on the stomach in the trainer, can train the standard arm of the free-swimming arm to move in a rotating way, controls the speed of a fast gear and a slow gear through the motor transmission device, and obtains training index data through the rotating speed sensor and the wind power sensor, thereby being not only used for learning the action mode of a beginner, but also used for training the land special strength of professional athletes.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the structure of the present invention;

FIG. 3 is a schematic view of the structure of the rotary support frame of the present invention

FIG. 4 is a top view of the structure of the rotary support frame and the motor transmission device of the present invention;

FIGS. 5-7 are schematic diagrams of the trajectory of an arm's movement by a practitioner of the invention using a telescoping guide track;

FIG. 8 is a schematic view of the construction of the glove, pull cord and pulley of the present invention;

1-telescopic guide rail, 2-face, 3-bandage, 4-front lying plate, 5-lower limb fixing device, 6-rear lying plate, 7-grooved drum, 8-elliptical wheel two, 9-rotating support frame two, 10-elliptical wheel one, 11-rotating support frame one, 12-base, 13-driving wheel, 14-wind damper, 15-wire drawing wheel, 16-wire drawing rod, 17-wire drawing, 18-pulley, 19-glove, 20-center rod, 21-rotating shaft, 22-elastic wire drawing, 23-tension sensor, 24-fixed rod, 25-driving connecting rod, 26-free rod one, 26' -free rod two, 27-rotating speed sensor, 28-wind impeller rotating shaft, 29-upper roller, 30-lower roller, 31-motor transmission.

Detailed Description

The present invention will be described in further detail with reference to the following examples and the accompanying drawings.

Referring to fig. 1-8, the present invention provides a freestyle land trainer.

A free swimming land trainer is characterized in that a base 12 is made of a bottom plate and supporting legs or directly adopts a base platform, a first rotating support frame 11 and a second rotating support frame 9 are respectively arranged at two sides of the base 12, a front lying plate 4 is arranged on the first rotating support frame 11, a rear lying plate 6 is arranged on the second rotating support frame 9, the front lying plate 4 and the rear lying plate 6 are matched with the prone position of a practicer, the front lying plate 4 of an upper half and the rear lying plate 6 of a lower half are prone, and a central rod 20 is arranged under the front lying plate 4 and the rear lying plate 6 to enable the front lying plate 4 and the rear lying plate 6 to be positioned on the same plane and rotate along the central rod 20; the front part of the front lying plate 4 is provided with a face 2 for facilitating the breathing of the face when the head is downward, and the front lying plate 4 is provided with a binding belt 3 for binding the upper body of the practicer; the lower limb fixing device 5 is a safety baffle arranged on the back lying plate 6, the baffle is arc-shaped and is jointed with the body to bind the lower half body of the practicer.

The two sides below the front lying plate 4 are respectively provided with a grooved drum 7, the groove shape of the grooved drum 7 is arranged in the left-right direction, and the upper end of a rotating support frame I11 is sleeved in the grooved drum 7 and can move up and down and drive the front lying plate 4 to rotate left and right along a central rod 20; the two sides below the back lying plate 6 are respectively provided with a groove drum 7, and the upper end of the second rotating support frame 9 is sleeved in the groove drum 7 and can move up and down and drive the back lying plate 6 to rotate left and right along the central rod 20.

The first rotating support frame 11 is composed of a fixed rod 24, a first free rod 26, a first elliptical wheel 10 and a rotating shaft 21, the fixed rod 24 is installed on the base 12, a lower roller 30 is installed at the other end of the fixed rod 24, the first elliptical wheel 10 is arranged on the lower roller 30 to roll, an upper roller 29 is installed at one end of the first free rod 26, the upper roller 29 is arranged on the first elliptical wheel 10 to roll, the other end of the first free rod 26 is sleeved in the groove cylinder 7 and can move left and right in the groove cylinder and move up and down in the cylinder, and namely the first free rod 26 drives the front lying plate 4 to rotate left and right along.

The second rotating support frame 9 is composed of a fixed rod 24, a second free rod 26 ', a second elliptical wheel 8 and a rotating shaft 21, the fixed rod 24 is installed on the base 12, a lower roller 30 is installed at the other end of the fixed rod 24, the second elliptical wheel 8 is arranged on the lower roller 30 to roll, an upper roller 29 is installed at one end of the second free rod 26', the upper roller 29 is arranged on the second elliptical wheel 8 to roll, the other end of the second free rod 26 'is sleeved in the groove cylinder 7 and can move left and right in the groove cylinder and move up and down in the cylinder, and therefore the second free rod 26' drives the rear lying plate 6 to rotate left and right along the.

A transmission connecting rod 25 is arranged between rotating shafts 21 on two sides of the front lying plate 4 and the rear lying plate 6, a first elliptical wheel 10 and a second elliptical wheel 8 are respectively arranged on the rotating shafts 21 and are driven by a motor transmission device 31, and the left and right rotating angles of the front lying plate 4 and the rear lying plate 6 are different and can be adjusted and the rotating frequencies are consistent; the included angle formed by the left and right rotation angles of the front lying plate 4 and the horizontal can be selected from the gears of 19.7 degrees for boys and 24 degrees for girls. The included angle formed by the left and right rotation angles of the back lying plate 6 and the horizontal plane can be selected from two gears of 6.9 degrees for girls and 12.5 degrees for boys.

The two sides of the front lying plate 4 are respectively provided with a telescopic guide rail 1, a pulley 18 is arranged in the telescopic guide rail 1, the joint of the inner side of the telescopic guide rail 1 and the pulley 18 is a smooth surface, the periphery of the telescopic guide rail 1 is a flexible material wrapping the pulley 18, and the pulley 18 is connected with a glove 19 and a pull wire 17; the hands of the exerciser are positioned in gloves 19 of a suitable size, the gloves 19 are connected to pulleys 18, and the pulleys 18 are connected to the pull wires 17.

A wind resistance device 14 and a pull wire 17 rod 16 are installed at one end of a base 12, a wind impeller rotating shaft 28, a wind impeller and the like are mainly installed in the wind resistance device 14, a rotating speed sensor 27 is installed in the wind resistance device 14, a driving wheel 13 is installed on the wind impeller rotating shaft 28 at the outer end of the wind resistance device 14, the driving wheel 13 drives the wind impeller rotating shaft 28 and the wind impeller to rotate, a pull wire 17 wheel 15 is installed on the pull wire 17 rod 16, a pulley 18 winds around a telescopic guide rail 1, a pull wire 17 on the pulley 18 winds around the pull wire 17 wheel 15 and the driving wheel 13 and is connected with a tension sensor 23 as an inelastic pull wire 17 and then is connected with an elastic pull wire 22, the driving wheel 13 on the wind resistance device 14 is a rough contact surface and is in friction transmission with the pull wire 17, the inelastic pull wire 17 drives the wind impeller rotating shaft and the wind impeller.

The pull line 17 is divided into an elastic line and a non-elastic line, the pull line 17 is connected to the pulley 18 and goes around the pulley 15 and the driving wheel 13 of the pull line 17, the pull sensor 23 is connected to the non-elastic line, the elastic pull line 22 is arranged from the pull sensor 23 to the tail end of the pull line 17, the elastic pull line 22 can be made of an elastic metal wire, an elastic metal plate and the like, and the pull sensor 23 can timely transmit the magnitude of the elastic force generated by the elastic pull line 22. The rotation speed sensor and the tension sensor are respectively connected to a computer system, and the computer receives signals and converts the signals into numbers and can analyze and display data of the rotation speed, the tension and the like.

When the free-swimming land trainer is used, the motor speed is adjusted to be high or low according to the body rotating speed on the motor transmission device 31, a practicer lies on the free-swimming trainer, the face of the practicer falls into the face hole 2, the length of the front lying plate 4 and the length of the front lying plate 4 which are matched with the height arm length are adjusted, and the size and the position of the telescopic guide track 1 are adjusted according to the height arm length of the user. The upper glove 19 is worn to fix the upper body with the binding band 3 of the front lying plate 4, and the lower limb fixing device 5 of the rear lying plate 6 fixes the lower body to prevent the body from slipping off during rotation. The preparation posture is prepared, the two hands stretch forward, the motor is started, the free swimming stroke arm exercise is carried out along the rotation rhythm of the first rotating support frame and the second rotating support frame driven by the motor, the free swimming stroke arm gloves 19 slide in the telescopic guide rails 1 to simulate the resistance change of the swimming stroke arm in water, the stroke arm action can be learned and corrected during the low-speed stroke arm exercise, the standard free swimming rotation stroke arm exercise is carried out, and the special strength exercise can be carried out during the quick stroke arm.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.