CN102380199B - Breaststroke swimming stroke trainer - Google Patents

Abstract

A breaststroke stroke training machine, which adopts rods to support the limbs and does not use motors, which reduces the possibility of the trainer being injured during the exercise; the support rods are used to support the wrists and ankles, the structure is simple and compact, and it can realize The trajectory of the hand is close to the spherical surface, which is more in line with the standard breaststroke action than the plane trajectory; the elbow support mechanism is added to simulate the buoyancy of the water on the human arm during the breaststroke breathing action, making it easier for people to realize the hand stroke. The standard breaststroke action; it also has a thigh support plate, which can effectively reduce the strength requirements of the breaststroke leg exercise on the shore, and effectively prevent the common wrong action of the practitioner from knee valgus; it also has a foot reversal mechanism, which can help the practitioner Complete the action of flipping the soles of the feet, which is convenient and labor-saving, with standard movements; it can be used by practitioners of different heights and arm lengths. It is easy to operate, low in cost, easy to assemble and maintain, and is very suitable for breaststroke beginners to practice swimming strokes.

Description

Breaststroke stroke training machine

technical field

The invention relates to a swimming training device, in particular to a training device for standard movements of breaststroke.

Background technique

In recent years, with the rapid development of social economy and the continuous improvement of people's living standards, coupled with the successful hosting of the Beijing Olympic Games, a sports boom has formed among the people. Especially in developed cities, while the material life is greatly satisfied, people's demand for a healthy life is also increasing, forming a multi-level and personalized sports consumption demand. It provides a great development space for the development of the sports consumption market.

Among many types of sports, swimming, as a physical exercise aimed at enhancing physical fitness and enriching people's cultural life, has gradually become one of people's favorite sports. Adhering to swimming exercises can not only improve the functions of the nerves, breathing and blood circulation systems, but also improve muscle strength, speed, endurance and joint flexibility, so that the body can be coordinated and developed. The resulting sports training equipment based on swimming has also become an important focus of the research and development of sports aids.

For swimming beginners, swimming learning has special difficulties. At the beginning of learning, beginners often cannot freely learn the technical essentials of swimming because they are difficult to overcome their fear of water, let alone in the current crowded swimming pool. learned under the conditions. Therefore, when learning to swim for the first time, in addition to understanding the characteristics of the water and being familiar with the water environment, the learner must also master a complete set of swimming technical movements on the shore, so that the learner can master the most basic swimming skills in the shortest time. Technical moves and essentials. In traditional swimming teaching, such shore stroke training is taught by the coach to learn from the most basic breaststroke stroke. However, among all swimming strokes, breaststroke is the most complex technique and requires relatively high coordination of various parts of the body. Therefore, swimming is more difficult for beginners and starts at a higher level. Moreover, this traditional teaching method of oral transmission and demonstration is difficult for learners to be standardized, and without the aid of equipment, arms and legs are suspended in the air, it is laborious to practice, and it is difficult for learners to persist. But the technical movements of sports require a lot of repeated practice to achieve proficiency. Therefore, designing a shore breaststroke swimming action training device to guide and help people to practice swimming strokes can not only relieve the pressure on the swimming pool to a certain extent, but also help beginners to master the correct swimming posture and cross the swimming pool as soon as possible. The first threshold of learning.

The spatial movement of swimming hands is a very complex spatial trajectory. An existing device capable of simulating swimming hand movements, such as the Chinese invention patent CN200951304 breaststroke land practice simulator, this practice simulator consists of a peach-shaped hand limiting device, a load-bearing platform, a supporting leg limiting device, etc. constitute. When in use, the practitioner lies prone on the load-bearing platform, and uses the peach-shaped hand limit device to help the practitioner complete the correct arm stroke movement. The trainer completes the correct kicking action, and the foot cover slides in the chute when kicking the legs, and the fixed track helps the trainer to master the correct swimming posture.

The peach-shaped track of this exerciser has a large footprint, and uses a plane track to guide people's movements, which is not in line with professional swimming styles; and this device that uses guide rails to realize the stroke track cannot realize the coordination of hand and foot movements. Therefore, it is not ideal when guiding the practitioner to learn the breaststroke stroke.

Contents of the invention

The purpose of the present invention is to address the deficiencies of the prior art, and to provide a breaststroke stroke training machine, which can provide support for the body and hands and feet for the trainer practicing swimming movements, help practice the movements of hands and feet, and correct the kicking movement of the human body at the same time , and has a wide range of adaptability to people with different shoulder widths and arm lengths; it can be used for movement exercises and strength exercises, and is in line with ergonomic principles.

Technical scheme of the present invention is as follows:

A breaststroke stroke training machine, comprising a base (1), characterized in that: the base (1) is hingedly provided with a prone platform, a hand structure, an elbow structure, a leg structure and a foot structure.

Further, the hand structure includes a hand support rod (3) and a flexible hand sleeve (4). One end of the hand support rod (3) is connected to the frame (1) through a ball joint pair, and the other end is connected to the frame (1). Hand flexible cover (4) links to each other.

Further, the elbow structure includes an elbow pressure rod (5), an elbow flexible sleeve (6), an elbow spring (7) and an elbow sleeve (8), and one end of the elbow sleeve (8) Connected to the base (1) through a ball joint, the elbow spring (7) is set in the elbow sleeve (8), and the piston end of the elbow pressure rod (5) is sleeved in the elbow sleeve (8) And be pressed on the elbow spring (7), the elbow flexible sleeve (6) is connected to the end of the elbow depression bar (5).

Further, the leg structure includes a thigh support plate (13) and a thigh spring (14).

Further, the foot structure includes a leg support rod (15), a calf support plate (16) and a foot cover (17).

Further, one end of the leg support rod (15) is connected to the base (1) through a ball joint, and the other end is fixedly socketed with the driving wheel (18) on the side of the calf support plate (16) through a sleeve, and the active The wheel (18) and the calf support plate (16) are movably socketed through the pin shaft on the side, the driven wheel (20) and the calf support plate (16) are movably socketed through the ankle joint pin shaft (21), and the foot cover (17) covers Connected on the ankle pin (21), the foot cover (17) is fixedly connected with the driven wheel (20), and one end of the transmission part (19) is solidified with the circumferential surface of the driving wheel (18), and the other end is connected with the driven wheel (20). ) is consolidated on the cylindrical surface, the spring (22) is sleeved on the ankle pin (21), and the two ends of the spring (22) are respectively connected to the driven wheel (20) and the foot cover (17).

Further, the drive wheel (18) and the driven wheel (20) are driven by a sheave, a pulley or a sprocket, and the transmission member (19) is a tendon rope, a toothed belt or a transmission chain.

Further, the spring member (22) is a tension spring, compression spring, torsion spring or elastic rope.

Further, there is an elastic connection between the prone platform and the base (1).

Further, the hand structure, elbow structure and/or leg structure and foot structure are arranged symmetrically on the base (1).

The present invention has the following advantages and outstanding effects:

The invention does not use a motor, which reduces the possibility of trainers being injured during exercises.

The supporting rod is used to support the wrist and ankle. The structure is simple and compact, and it can realize the trajectory of the hand close to the spherical surface. Compared with the plane trajectory, it is more consistent with the standard breaststroke action.

The elbow support mechanism is added to simulate the buoyancy of the water on the human arm during the breaststroke breathing action, making it easier for people to realize the standard breaststroke action of the hand.

It also has a thigh support plate, which can effectively reduce the strength requirements of breaststroke leg exercise on the shore, and effectively prevent practitioners from common wrong movements of knee valgus.

It also has a foot reversing mechanism, which can help practitioners complete the action of turning the soles of the feet, which is convenient and labor-saving, and the movements are standard.

It can be used by practitioners of different heights and arm lengths. It is easy to operate, low in cost, easy to assemble and maintain, and is very suitable for breaststroke beginners to practice their swimming strokes.

Description of drawings

Fig. 1 is a front view diagram of an embodiment of the breaststroke stroke training machine provided by the present invention.

Fig. 2 is a top view of the embodiment shown in Fig. 1 .

Fig. 3 is a partial side view of the foot turning mechanism of the embodiment shown in Fig. 1 .

FIG. 4 is a top sectional view of the foot turning mechanism of FIG. 3 .

Fig. 5 is a schematic diagram of the foot turning mechanism in Fig. 3 when both legs are straightened.

Fig. 6 is a schematic diagram of the foot turning mechanism in Fig. 3 when both legs are retracted to the limit position.

The reference signs are as follows:

1-Base, 2-Nylon foot pad, 3-Hand support rod, 4-Hand flexible sleeve, 5-Elbow pressure rod, 6-Elbow flexible sleeve, 7-Elbow spring, 8-Elbow sleeve Tube, 9-prone platform, 10-prone platform spring, 11-support shaft, 12-connecting hinge, 13-thigh support plate, 14-thigh spring, 15-leg support bar, 16-calf support plate, 17- Foot cover, 18-driving wheel, 19-transmission member, 20-driven wheel, 21-ankle pin, 22-spring.

Detailed ways

The specific structure and working principle of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

An embodiment of the breaststroke stroke training machine according to the present invention, as shown in Figures 1 to 6, includes a base 1, a nylon foot pad 2, a hand support rod 3, a flexible hand sleeve 4, an elbow press Rod 5, elbow flexible sleeve 6, elbow spring 7, elbow sleeve 8, prone platform 9, prone platform spring 10, support shaft 11, connecting hinge 12, thigh support plate 13, thigh spring 14, leg support Rod 15, calf support plate 16, foot cover 17, driving wheel 18, transmission member 19, driven wheel 20, ankle joint pin shaft 21 and spring member 22.

The base 1 is a rectangular bottom plate, on which is a boss welded by stainless steel pipes, above the boss is a fastened bearing seat with holes, and the nylon foot pad 2 is connected to the bottom of the base 1 .

One end of the hand support rod 3 is connected to the frame 1 through a ball joint pair, and the flexible hand cover 4 is connected to the end of the hand support rod 3 .

One end of the elbow sleeve 8 is connected with the frame 1 through a ball joint, and the elbow spring 7 is placed in the elbow sleeve 8; the piston end of the elbow pressing rod 5 is pressed on the elbow spring 7, and the elbow pressing rod 5 The piston end is sleeved in the elbow sleeve 8 at the same time; the elbow flexible sleeve 6 is connected to the end of the elbow pressure rod 5 .

The support shaft 11 is movably socketed with the base, and the prone platform 9 is socketed with the base 1 through the support shaft 11, and the prone platform 9 can rotate relative to the base 1 around the support shaft 11; Link to each other with base 1 and prone platform 9.

One end of the connecting hinge 12 is fixed on the base 1, and the thigh support plate 13 is connected with the other end of the connecting hinge 12; the thigh spring 14 is connected with the base 1 through a spring guide rod.

One end of the leg support rod 15 is connected to the base 1 through a ball joint pair, and the other end is movably socketed with the calf support plate 16; Consolidation; the driven wheel 20 and the calf support plate 16 are movably socketed through the ankle joint pin shaft 21, the foot cover 17 is socketed on the ankle joint pin shaft 21, and the foot cover 17 is fixedly connected with the driven wheel 20; one end of the transmission part 19 is connected to the The end of driving wheel 18 is consolidated, and the other end is consolidated with the end of driven wheel 20; driving wheel 18, driven wheel 20, and transmission member 19 cooperate to form a transmission relationship; The two ends of the piece 22 are connected with the driven wheel 20 and the foot cover 17 respectively.

Corresponding to the structure of the limbs of the human body, the structures of the upper hand, elbow, thigh and calf can be symmetrically arranged left and right.

Breaststroke stroke training machine of the present invention, driving wheel 18, driven wheel 20 can adopt rope pulley, pulley or sprocket; Transmission part 19 can adopt tendon rope, toothed belt or transmission chain.

In the breaststroke stroke training machine of the present invention, the spring member 22 can be an extension spring, a compression spring, a torsion spring or an elastic rope.

The specific working principle of the present embodiment, as shown in Figure 1, is described as follows:

When practicing breaststroke, the practitioner lies prone on the prone platform 9, puts the wrist in the flexible sleeve 4 of the hand, places the elbow joint in the flexible sleeve 6 of the elbow; places the calf in the calf support plate 16, and places the foot Stretch in foot cover 17.

When the practitioner is using the stroke training machine to practice breaststroke hand movements, the movement of the elbow is not restricted, but is subject to the upward elastic force of the elbow spring 7 inside the elbow sleeve 8; according to the standard breaststroke action, when When the hand strokes backward, the elbow should not be pressed down; when doing breaststroke arm stroke exercises on the shore, because there is no buoyancy force for the arm from the water, it is more laborious to make standard movements; the elbow spring 7 gives the elbow an upward Therefore, it is easier to make standard arm strokes with the swimming stroke training machine.

When the elbow pressed down to hold the water, the elbow spring 7 in the elbow sleeve 8 gave the elbow an upward resistance, simulating the resistance that the arm received when breathing.

The working process of the foot reversing mechanism is shown in Figure 5 and Figure 6:

When the practitioner's body is straightened, according to the breaststroke standard action, both feet should be stretched as far as possible to reduce the resistance; in order to allow the practitioner to use comfortably, the foot cover 17 and the calf support plate 16 have a small angle c at this time, and this At the same time, the leg support bar 15 and the calf support plate 16 form an angle a; It forms an angle a+b with the calf support plate 16; at this time, due to the constraints of the mechanism of the driving wheel 18, the driven wheel 20 and the transmission member 19, the rotation angle b of the leg support rod 15 will cause the driven wheel 20 to couple and rotate an angle d, The driven wheel 20 drives the spring part 22 to rotate around the ankle joint pin shaft 21, and the spring part 22 drives the foot cover 17 to rotate around the ankle joint pin shaft 21 by the same angle d, resulting in the final angle between the foot cover 17 and the calf support plate 16 being c+ d; Since the foot cover 17 and the rotating shaft of the calf support plate 16 have an angle e between the ankle joint pin shaft 21 and the direction of the calf support plate 16, the rotation of the foot cover 17 can cause the practitioner’s feet to turn outwards, so as to realize the correct swimming flip action.

When both legs were kicked back, the leg support rod 15 would turn back to the angle b in the opposite direction relative to the calf support plate 16; 20 will turn back the angle d, and drive the foot cover 17 to turn back to the same angle d through the spring part 22, thereby driving the feet of the practitioner to make the correct kicking action.

According to the breaststroke standard action, when both legs are retracted forward, the forward bending angle of the thigh should be as small as possible, and the knee must not be turned outwards, so as to reduce the resistance; Angle, so when the practitioner's legs are retracted forward, the thigh support plate 13 can effectively prevent the knee from eversion; when the thigh is bent forward, the thigh support spring is compressed, which can simulate the stress on the thigh in water.

The breaststroke stroke training machine described in the present invention does not use a motor, which reduces the possibility of the trainer being injured during the exercise; supports the wrist and the ankle by using support rods, has a simple and compact structure, and can realize hand closeness The trajectory on the spherical surface is more in line with the standard breaststroke action than the plane trajectory; the elbow support mechanism is added to simulate the buoyancy of the water on the human arm during the breaststroke ventilation action, making it easier for people to realize the standard breaststroke of the hand Action; it also has a thigh support plate, which can effectively reduce the strength requirements of the breaststroke leg exercise on the shore, and effectively prevent the common wrong movement of the practitioner from knee valgus; it also has a foot reversing mechanism, which can help the practitioner complete the flipping of the soles of the feet It is convenient and labor-saving, and has standard movements; it can be used by practitioners of different heights and arm lengths. It is easy to operate, low in cost, easy to assemble and maintain, and is very suitable for swimming stroke practice for breaststroke beginners.

Claims (5)

1. A breaststroke stroke training machine, comprising a base (1), characterized in that: the base (1) is hingedly provided with a prone platform, a hand structure, an elbow structure, a leg structure and a foot structure; in, The hand structure includes a hand support rod (3) and a flexible hand sleeve (4). One end of the hand support rod (3) is connected to the base (1) through a ball joint pair, and the other end is connected to the flexible hand sleeve (4). Cover (4) links to each other; The elbow structure includes an elbow pressure rod (5), an elbow flexible sleeve (6), an elbow spring (7) and an elbow sleeve (8), and one end of the elbow sleeve (8) passes through a ball joint The pair is connected with the base (1), the elbow spring (7) is set in the elbow sleeve (8), and the piston end of the elbow pressure rod (5) is sleeved in the elbow sleeve (8) and pressed on On the elbow spring (7), the elbow flexible sleeve (6) is connected to the end of the elbow pressure bar (5); The leg structure comprises a thigh support plate (13) and a thigh spring (14); The foot structure includes a leg support rod (15), a calf support plate (16) and a foot cover (17); one end of the leg support rod (15) is connected to the base (1) through a ball joint, The other end and the driving wheel (18) on the side of the shank support plate (16) are fixedly socketed through the sleeve, and the driving wheel (18) and the shank support plate (16) are movably socketed through the pin shaft on the side, and the driven wheel (20) and the The calf support plate (16) is movably socketed through the ankle pin (21), the foot cover (17) is socketed on the ankle pin (21), the foot cover (17) is fixedly connected with the driven wheel (20), and the transmission One end of piece (19) is consolidated with the circumferential surface of driving wheel (18), and the other end is consolidated with the cylindrical surface of driven wheel (20). The spring piece (22) is sleeved on the ankle pin (21), and the spring piece The two ends of (22) connect driven wheel (20) and foot cover (17) respectively. 2. The breaststroke stroke training machine according to claim 1, characterized in that: the transmission member (19) is a tendon rope, a toothed belt or a transmission chain. 3. The breaststroke stroke training machine according to claim 1, characterized in that: the spring member (22) is a tension spring, a compression spring, a torsion spring or an elastic rope. 4. The breaststroke stroke training machine according to claim 1, characterized in that: the prone platform part and the base (1) are elastically connected. 5. The breaststroke stroke training machine according to claim 1, characterized in that: the hand structure, the elbow structure and/or the leg structure and the foot structure are symmetrically arranged on the base (1).

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