CN118477294A - Swimming-gesture-assisted rehabilitation exercise trainer - Google Patents

Abstract

The invention discloses a swimming posture auxiliary rehabilitation exercise trainer, wherein the left end of a middle frame is connected with an upper limb movement mechanism, the right end of the middle frame is connected with a lower limb movement mechanism, and the upper limb movement mechanism is connected and linked with the lower limb movement mechanism through a linkage mechanism connected on the middle frame; the upper rocker arm and the lower rocker arm are respectively connected with the left end and the right end of the middle frame, the rear end of the upper slide bar is arranged in an inner track of the upper rocker arm and can slide, the upper end surfaces of the upper slide bar and the upper rocker arm are provided with communicated wire slots, the front end part and the rear end part of the middle slide bar are respectively arranged at two sides of the middle frame, the front end part and the rear end part are coaxially connected with an upper connecting rod, a connecting rod pushing handle and a lower connecting rod, the upper connecting rod is slidably and fixedly arranged in the wire slot, the lower rocker arm is slidably provided with the upward pedal, and the lower connecting rod is connected and linked with the upward pedal through the rotating shaft.

Description

Swimming-gesture-assisted rehabilitation exercise trainer

Technical Field

The invention relates to a sports trainer, in particular to a swimming-style auxiliary rehabilitation sports trainer, belonging to the field of medical rehabilitation training equipment.

Background

The swimming is used as a whole body exercise capable of comprehensively participating in the muscles of the upper limbs, the neck, the shoulder, the back, the abdomen and the lower limbs, can move the muscles to improve the muscle quality, can improve the muscle strength, the speed, the endurance and the joint flexibility of normal people when the normal people perform swimming exercise, can effectively promote the blood circulation of the whole body muscles, has a certain strengthening effect on deep muscles, and has a good effect on preventing or relieving arteriosclerosis and cardiovascular diseases. For people with sub-health or slightly impaired limb movement, swimming is a very good rehabilitation exercise option: the lying or lying state can reduce the load of the body weight on joints, and the cervical vertebra facet joint is exercised in the back stroke, so that the cervical vertebra facet joint is beneficial to rehabilitation of cervical spondylosis patients, the breaststroke action is beneficial to rehabilitation of patients suffering from lumbago and leg pain or lumbar disc herniation, but knee osteoarthritis and patients with O-shaped legs can avoid breaststroke training, and can select swimming postures such as free swimming, back stroke and the like.

The prior art and the market pay attention to more swimming training devices, mainly aiming at improving muscle strength and motor skills of sports fitness people, such as the technical proposal of commercially available dynamic chest-expander for use in the United states VASA Ergometer-swimming and the like, which adopts a tension rope controlled by a damper to carry out autonomous training so as to correct the core strength of swimming training. The invention patent application No. CN201810781221.5, namely a leg motion simulation device based on breaststroke training and the invention patent application No. CN201610970892.7, namely a swimming training instrument, is also designed for improving muscle strength and correcting motion of normal people. The conventional sports therapeutic rehabilitation appliance comprises an electric lifting standing bed, a PT stool, a PT bed, a Pasteur ball, a ladder, a balance plate, a series of dumbbell, a sand bag, a gymnastics rod, a throwing ball, an ankle joint trainer, a roller, a balance bar, a standing frame, a shoulder ladder, a rib wood, a quadriceps femoris trainer, a wedge pad, a wrist joint rehabilitation trainer, a forearm rehabilitation trainer, a shoulder joint rehabilitation trainer, a posture correcting mirror and the like, wherein the special performance of each appliance is strong, and more expenses are required and a large amount of sites are occupied. At present, the number of musculoskeletal patients is large, the technical proposal of combining the swimming strokes with medical rehabilitation training to improve or recover limb movement capacity is small, and special swimming stroke auxiliary rehabilitation sports equipment or facilities are also lacking in the market to carry out targeted auxiliary exercise rehabilitation, so that the research and development of the equipment can fill the market gap, and has higher social value and commercial value.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides the swimming-posture auxiliary rehabilitation exercise trainer which has the technical characteristics that the upper limb movement and the lower limb movement can be related by utilizing a multi-link mechanism, and the swimming-posture auxiliary rehabilitation exercise can be performed independently or in an assisted manner by people.

In order to achieve the above purpose, the present invention is realized by the following technical scheme:

The swimming posture auxiliary rehabilitation exercise trainer comprises a bottom frame and a middle frame connected to the bottom frame, wherein the upper end and the left end of the middle frame are respectively connected with a middle component and a head support component, the left end of the middle frame can be movably connected with an upper limb movement mechanism, the upper limb movement mechanism is positioned below the head support component, the right end of the middle frame can be movably connected with a lower limb movement mechanism, and the upper limb movement mechanism is connected and linked with the lower limb movement mechanism through a linkage mechanism connected to the middle frame;

the upper limb movement mechanism comprises two rocker arms and an upper slide bar, the free ends of the upper slide bars are connected with handles, the linkage mechanism comprises a middle slide bar, the lower limb movement mechanism comprises a lower rocker arm and a pitching pedal, and the middle component comprises a chest plate, an anti-rolling frame, a waist web plate and a detachable hip plate;

The upper rocker arm and the lower rocker arm are respectively connected to the left end and the right end of the middle frame through separate and longitudinal rotating shafts, the upper rocker arm and the lower rocker arm can be spliced or separated, the rear end of the upper sliding rod is arranged on an inner track of the upper rocker arm and can slide, the upper end face of the upper sliding rod and the upper rocker arm is provided with a communicated wire slot, the front end part and the rear end part of the middle sliding rod are respectively arranged on two sides of the middle frame, the front end part and the rear end part are respectively coaxially connected with an upper connecting rod, a connecting rod pushing handle and a lower connecting rod, the two upper connecting rods are symmetrically and fixedly arranged in one wire slot through locking sliding buttons, an upward pedal is arranged on each lower rocker arm in a sliding mode, and the two lower connecting rods are symmetrically and respectively connected and linked with one upward pedal through the rotating shafts.

Preferably, two the below of lower rocking arm all is connected with an opening and upwards just is curved push-down frame, along offer the slide rail on the push-down frame, slidable is provided with the pedal coaster in the slide rail, all be connected with a foot slide bar that extends downwards in the pivot that lower connecting rod and face upward footboard 13 are connected with, be connected with the slide bar lock on the pedal coaster, slide bar lock slidable cover is on a foot slide bar in order to realize pedal coaster 15 and lower connecting rod linkage.

Preferably, the right end of the upper rocker arm is connected with an upper circular block and a lower circular block, the upper circular block and the lower circular block are arranged at intervals and are sleeved on a rotating shaft, a half gear is arranged on the rotating shaft between the upper circular block and the lower circular block, and the two upper rocker arms can be linked through the meshed half gears;

The left end of the lower rocker arm is connected with an upper end block and a lower end block, the upper end block and the lower end block are arranged at intervals and are sleeved on a rotating shaft, a half gear is arranged on the rotating shaft between the upper end block and the lower end block, and the two lower rocker arms can be linked through the meshed half gears.

Preferably, a wedge-shaped chute is formed on the outer side surface of the lower rocker arm 12, and a back-off block slide with matched size is arranged corresponding to the chute, and the back-off block slide is connected with the upward pedal for linkage.

Preferably, the front end and the rear end of the middle frame are provided with transverse sliding grooves, the middle sliding rod is arranged on the sliding grooves through lock buttons, and the left and right positions of the sliding rod in the sliding grooves of the middle frame are adjusted through the lock buttons.

Preferably, the lower extreme of going up the slide bar is connected with the piston rod, the right-hand member department of going up the rocking arm below is connected with the base, be connected with adjustable damper on the base, the piston rod right-hand member is connected with adjustable damper.

Preferably, the head support component and the hip plate are respectively arranged on the rotating shafts at the front end and the rear end of the middle frame, and the chest plate, the anti-rolling frame and the waist web plate are arranged in a first chute, a second chute and a third chute which correspond to the middle frame and can be adjusted in position; the first sliding groove and the third sliding groove are transverse bar grooves, and the second sliding groove is a longitudinal bar groove.

Preferably, a tension spring is fixed at the left end in the sliding groove of the lower rocker arm, and the other end of the tension spring is fixed on the back-off block of the upward pedal group in a sliding manner so as to provide leg extension resistance and automatic return of the upward pedal.

Preferably, a notch is recessed at the left end of the lower rocker arm, and the hip plate can be installed in the notch; the right end of the lower rocker arm is connected with a landing rod with a roller;

The head support assembly comprises a head rest and an installation tube, the installation tube is connected with the left end of the middle frame, the head rest is connected with a telescopic rod, the right end of the telescopic rod stretches into the installation tube, a moving groove is formed in the installation tube, an anti-falling block is arranged above the moving groove, the anti-falling block is connected with the telescopic rod in the installation tube, a locking screw is further arranged on the linear groove, and the locking screw can lock and fix the telescopic rod in the installation tube.

Preferably, the underframe is connected with two fixing plates, and the other ends of the two trampoline frames are fixed on the fixing plates to be supported.

The beneficial effects are that: compared with the existing rehabilitation exercise training equipment, the invention adopts the multi-link mechanism to realize the linkage of the movement actions of the upper and lower limbs, can be matched with the two swimming gesture actions of backstroke and breaststroke for use, can be used independently by a user, can be used with assistance by an auxiliary person, and can perform the rehabilitation exercise of multi-muscle groups and multi-joints of the whole body; compared with the existing swimming trainer, the swimming trainer is more suitable for sports rehabilitation, and has more advantages in experience for users with slightly limited sports; the device has simple structure, convenient processing, easy mass production and market popularization, and better market value and social value.

Drawings

FIG. 1 is a schematic diagram of the overall assembly relationship of the present invention.

Fig. 2 is an exploded view of the structure of the present invention.

Fig. 3 is a schematic diagram of a backstroke gesture matching use 1 of the present invention.

Fig. 4 is a schematic diagram of a breaststroke gesture matching use 2 of the present invention.

Fig. 5 is a schematic diagram of a backstroke gesture matching use 3 of the present invention.

Fig. 6 is a schematic diagram of the components relationship in the use 3 state of the present invention.

Fig. 7 is a schematic diagram of a breaststroke gesture matching use 4 of the present invention.

Fig. 8 is a schematic diagram of the relationship of components in the use 4 state of the present invention.

Fig. 9 is a schematic diagram of a backstroke gesture matching use 5 of the present invention.

Fig. 10 is a schematic diagram of the relationship of components in the use 5 state of the present invention.

Fig. 11 is a schematic diagram of a breaststroke gesture matching use 6 of the present invention.

Fig. 12 is a schematic diagram of the relationship of components in the use 6 state of the present invention.

Fig. 13 is a schematic view of the rocker arm motion of the present invention.

Fig. 14 is a schematic view of the structure of each limit adjusting groove of the middle frame of the invention.

FIG. 15 is a schematic view of the present invention for adjusting the position of the middle slide bar.

Fig. 16 is a schematic view of a structure dedicated for backstroke according to the present invention.

Fig. 17 is a schematic diagram of a breaststroke exclusive structure of the present invention.

Fig. 18 is a schematic view of the head rest position adjustment of the present invention.

Fig. 19 is a schematic view showing the adjustment modes of the middle frame, chest plate, roll cage and waist web of the present invention.

Fig. 20 shows a connection between the upper rocker arm and the lower rocker arm of the present invention.

Fig. 21 is a schematic diagram of the assisted rehabilitation exercise of the present invention.

Fig. 22 is a schematic view of the backstroke stroke of the present invention in use.

Detailed Description

The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 22 of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present invention.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," and the like are to be construed broadly and include, for example, "connected," either fixedly connected, detachably connected, or integrally connected; can be mechanically or indirectly connected through an intermediate medium, but the connection of the parts does not affect the multi-position folding of the application. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

The invention creatively utilizes the link mechanism to carry out linkage and synergy on the motions of the upper and lower limbs, can give consideration to the combined use of the backstroke and the breaststroke, can also be used only by single swimming through the quick-dismantling structure disassembly component, can facilitate the auxiliary person to assist in exercise in a special holding area, can be used by conveniently matching different body types through flexibly adjusting the position of the human body matching component, and fills the blank of similar products in the market.

The principle of the invention is as follows: the actions of the upper slide bar 6 and the lower rocker arm 12 are respectively transmitted through the upper connecting rod 8 and the lower connecting rod 11, are restrained through the middle slide bar 3, and are connected through the sliding of the pedal slide connecting rod 16, so that the transmission of the breaststroke leg actions is realized.

The invention relates to a swimming posture auxiliary rehabilitation exercise trainer, which comprises an underframe 1 and a middle frame 2 connected to the underframe 1, wherein the upper end and the left end of the middle frame 2 are respectively connected with a middle component and a head support component 18, the left end of the middle frame 2 can be also movably connected with an upper limb movement mechanism, the upper limb movement mechanism is positioned below the head support component 18, the right end of the middle frame 2 can be movably connected with a lower limb movement mechanism, and the upper limb movement mechanism and the lower limb movement mechanism are connected and linked through a linkage mechanism connected to the middle frame 2;

the upper limb movement mechanism comprises two rocker arms 5 and an upper slide rod 6, the free ends of the upper slide rod 6 are connected with handles 6.1, the linkage mechanism comprises a middle slide rod 3, the lower limb movement mechanism comprises a lower rocker arm 12 and an upward pedal 13, and the middle component comprises a chest plate 19, an anti-rolling frame 20, a waist web 21 and a detachable hip plate 22;

The upper rocker arm 5 and the lower rocker arm 12 are respectively connected to the left end and the right end of the middle frame 2 through independent and longitudinal rotating shafts 2.5, the upper rocker arm 5 and the lower rocker arm 12 can be spliced or separated, the rear end of the upper sliding rod 6 is arranged on the inner track of the upper rocker arm 5 and can slide, the upper end faces of the upper sliding rod 6 and the upper rocker arm 5 are provided with communicated wire slots, the front end part and the rear end part of the middle sliding rod 3 are respectively arranged on two sides of the middle frame 2, the front end part and the rear end part are respectively coaxially connected with an upper connecting rod 8, a connecting rod pushing handle 10 and a lower connecting rod 11, the two upper connecting rods 8 are symmetrically and respectively arranged in one wire slot in a sliding manner through locking sliding buttons 9, each lower rocker arm 12 is provided with a pitching pedal 13 in a sliding manner, and the two lower connecting rods 11 are symmetrically and respectively connected and linked with one pitching pedal 13 through the rotating shafts.

The lower rocker arm 12 is characterized in that two lower rocker arms 12 are respectively connected with a downward arc-shaped push-down frame 14.1 with an upward opening, a slide rail is arranged on the push-down frame 14.1, a pedal pulley 15 is slidably arranged in the slide rail, a downward extending pedal slide rod 16 is respectively connected to a rotating shaft connected with the lower connecting rod 11 and the upward pedal 13, a slide rod sleeve lock 17 is connected to the pedal pulley 15, and the slide rod sleeve lock 17 is slidably sleeved on the pedal slide rod 16 to realize linkage of the pedal pulley 15 and the lower connecting rod 11.

In a preferred embodiment, the right end of the upper rocker arm 5 is connected with an upper circular block and a lower circular block, the upper circular block and the lower circular block are spaced and sleeved on a rotating shaft 2.5, a half gear 4 (which can be in a fixed or non-fixed connection mode) is arranged on the rotating shaft 2.5 between the upper circular block and the lower circular block, and the two upper rocker arms 5 can be linked through the meshed half gear 4;

the left end of the lower rocker arm 12 is connected with an upper end block and a lower end block, the upper end block and the lower end block are arranged at intervals and are sleeved on a rotating shaft 2.5, a half gear 4 is arranged on the rotating shaft 2.5 between the upper end block and the lower end block, and the two lower rocker arms 12 can be linked through the meshed half gears 4.

In a preferred embodiment, a wedge-shaped chute 12.1 is formed on the outer side surface of the lower rocker arm 12, and a back-off block slide 13.1 with a matched size is arranged corresponding to the chute 12.1, and the back-off block slide 13.1 is connected with the upward pedal 13 for linkage.

In a preferred embodiment, the front end and the rear end of the middle frame 2 are provided with transverse sliding grooves 2.4, the middle sliding rod 3 is arranged on the transverse sliding grooves 2.4 through a lock button 3.1, and the left and right positions of the sliding rod 3 in the transverse sliding grooves 2.4 of the middle frame 2 are adjusted through the lock button 3.1.

In a preferred embodiment, the lower end of the upper sliding rod 6 is connected with a piston rod 7.2, the right end below the upper rocker arm 5 is connected with a base 7.1, the base 7.1 is connected with an adjustable damper, and the right end of the piston rod 7.2 is connected with the adjustable damper.

In a preferred embodiment, the head support assembly 18 and the hip plate 22 are respectively mounted on the rotating shafts 2.5 at the front end and the rear end of the middle frame 2, and the chest plate 19, the anti-rolling frame 20 and the waist web 21 are mounted in the corresponding first sliding chute 2.1, the second sliding chute 2.2 and the third sliding chute 2.3 on the middle frame 2 and can be adjusted in position; the first sliding chute 2.1 and the third sliding chute 2.3 are transverse strip-shaped grooves, and the second sliding chute 2.2 is a longitudinal strip-shaped groove.

In a preferred embodiment, a tension spring is fixed at the left end in the sliding groove 12.1 of the lower rocker arm 12, and the other end of the tension spring is fixed on the back-off block 13.1 of the back-off pedal group 13 to provide leg extension resistance and automatic return of the back-off pedal 13.

In a preferred embodiment, the left end of the lower rocker arm 12 is recessed with a notch, and the hip plate 22 can be mounted in the notch; the right end of the lower rocker arm 12 is connected with a landing rod with a roller;

the head support assembly 18 comprises a headrest and an installation pipe, the installation pipe is connected with the left end of the middle frame 2, the headrest is connected with a telescopic rod, the right end of the telescopic rod stretches into the installation pipe, a moving groove is formed in the installation pipe, an anti-falling block 18.1 is arranged above the moving groove, the anti-falling block 18.1 is connected with the telescopic rod in the installation pipe, and a locking screw is arranged on the linear groove and can lock and fix the telescopic rod in the installation pipe.

In a preferred embodiment, two fixing plates 14 are connected to the chassis 1, and the other ends of the two dive frames 14.1 are fixed to the fixing plates 14 to be supported.

Working principle: the user operates the handle 6.1 to drive the upper slide bar 6 to slide back and forth in the upper rocker arm 5, the locking slide button 9 (which can be a screw) is adjusted to be locked at a proper position, when the upper slide bar 6 and the upper rocker arm 5 rotate left and right (namely, the upper rocker arm 5 are separated and spliced), the lower connecting rod 11 is linked through the upper connecting rod 8, and the lower connecting rod 11 slides left and right on the lower rocker arm 12 together with the upward pedal 13, the sliding motion of the pedal block 15 on the push-down frame 14.1 and the left and right opening and closing motion of the lower rocker arm 12 are mutually borrowed and interacted.

As shown in fig. 1, 3-12, 15 and 22, the swimming rehabilitation trainer combines two modes of backstroke and breaststroke, and only needs to take down or mount the hip plate 22 when the swimming is switched. Based on cost or specific needs, the redundant stroke components can be removed, as shown in fig. 16, the stroke rehabilitation trainer only supports backstroke strokes, as shown in fig. 17.

In one embodiment, shown in fig. 21, the device provides three different exercise assisting positions, namely a handle 6.1, a link push 10, and a gimbaled ground support leg of the lower rocker arm 12.

Operation mode one: left and right linkage type.

As shown in fig. 1, 3-8 and 22, the half gear 4 of the present application may also be sleeved on the rotating shaft 2.5 in a non-fixed manner, but in order to achieve that the half gear 4 may be fixed on the rotating shaft 2.5, the following scheme may be specifically provided:

The lower convex teeth 4.1 are arranged on the lower side of the gear inner ring of the half-tooth group 4, the grooves 5.1 and 12.3 are arranged at the corresponding installation positions of the upper rocker arm 5 and the lower rocker arm 12, and the bolts 5.2 and 12.2 are also arranged at the positions of the upper rocker arm 5 and the lower rocker arm 12 close to the half-tooth group 4. When the latch 5.2 and the latch 12.2 are in the pulled-out state, the half gear 4 falls freely, the lower convex tooth 4.1 enters the groove 5.1 and the groove 12.3, and the gears in the half gear 4 are in the meshed state at this time, so that the actions of the upper rocker arm 5 and the lower rocker arm 12 are synchronous with the action of the half gear 4 arranged in the upper rocker arm. In the use mode, the actions of the upper limbs and the lower limbs can be completely linked.

If the scheme that the half gear 4 is fixedly sleeved on the rotating shaft 2.5 is adopted, the actions of the upper rocker arm 5 and the lower rocker arm 12 are permanently synchronous with the actions of the half gear 4 arranged in the upper rocker arm and the lower rocker arm.

And the second operation mode is as follows: left and right independent.

When the half gear 4 of the present application can also be sleeved on the rotating shaft 2.5 in a non-fixed manner, as shown in fig. 9-14 and 22, when the single-sided bolt 5.2 and the bolt 12.2 are pressed in, the half gear 4 is jacked up (specifically, the bolt is inserted between the half gear 4 and the upper circular block, between the half gear 4 and the upper end block), the lower convex tooth 4.1 is separated from the groove 5.1 and the groove 12.3, and the transmission effect between the half gears 4 is lost, so that the front-rear side actions of the upper rocker arm 5 and the lower rocker arm 12 cannot be transmitted through the half gear 4 arranged in the upper rocker arm. In this way, the actions of the upper limb and the lower limb can realize the linkage of the left and right single sides.

And the operation mode is three: loose linkage type.

As shown in fig. 13-15, when the lock button 3.1 and the lock slide button 9 are in an unlocked state, the upper connecting rod 8 and the lower connecting rod 11 can transmit the motion only when the lock slide button 9 is limited and supported by two ends of the slot in the upper slide rod 6, and the independent motion of the limbs of the exerciser has a certain degree of freedom and autonomy.

And the operation mode is four: shan Yong pose.

As shown in fig. 16, the device has only a backstroke function when the depression frame 14.1, the pedal block 15, the pedal slide bar 16, and the slide bar lock 17 are not mounted, and only a breaststroke function when the back pedal 13 and the hip plate 22 are not mounted, as shown in fig. 17.

Finally, it should be noted that the invention is not limited to the above embodiments, but that many variants are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present invention.

Claims (10)

1. The utility model provides a supplementary rehabilitation exercise training device of swimming, includes chassis (1) and connects well frame (2) on chassis (1), its characterized in that: the upper end and the left end of the middle frame (2) are respectively connected with a middle component and a head support component (18), the left end of the middle frame (2) is also movably connected with an upper limb movement mechanism, the upper limb movement mechanism is positioned below the head support component (18), the right end of the middle frame (2) is movably connected with a lower limb movement mechanism, and the upper limb movement mechanism and the lower limb movement mechanism are connected and linked through a linkage mechanism connected on the middle frame (2);

the upper limb movement mechanism comprises two upper rocker arms (5) and upper slide bars (6), the free ends of the upper slide bars (6) are connected with handles (6.1), the linkage mechanism comprises middle slide bars (3), the lower limb movement mechanism comprises lower rocker arms (12) and a top-lying pedal (13), and the middle component comprises a chest plate (19), an anti-rolling frame (20), a waist web (21) and a detachable hip plate (22);

The upper rocker arm (5) and the lower rocker arm (12) are respectively connected to the left end and the right end of the middle frame (2) through separate and longitudinal rotating shafts (2.5), the upper rocker arm (5) and the lower rocker arm (12) can be spliced or separated, the rear end of the upper sliding rod (6) is arranged on the inner rail of the upper rocker arm (5) and can slide, the upper sliding rod (6) and the upper end face of the upper rocker arm (5) are provided with communicated wire slots, the front end part and the rear end part of the middle sliding rod (3) are respectively positioned on two sides of the middle frame (2), the front end part and the rear end part are respectively coaxially connected with an upper connecting rod (8), a connecting rod pushing handle (10) and a lower connecting rod (11), the two upper connecting rods (8) are symmetrically and respectively arranged in one wire slot in a sliding manner through locking sliding buttons (9), each lower connecting rod (11) is symmetrically and respectively connected with one upward pedal (13) through the rotating shafts.

2. A swimming stroke assisting rehabilitation exercise trainer according to claim 1, wherein: two the below of rocking arm (12) down all is connected with one opening and is curved push-down frame (14.1), along offer the slide rail on push-down frame (14.1), slidable in the slide rail is provided with pedal coaster (15), all be connected with pedal slide bar (16) of a downward extension in the pivot that lower connecting rod (11) are connected with pedal (13), be connected with slide bar lock (17) on pedal coaster (15), slide bar lock (17) slidable cover is on pedal slide bar (16) in order to realize pedal coaster (15) and lower connecting rod (11) linkage.

3. A swimming stroke assisting rehabilitation exercise trainer according to claim 1 or 2, wherein: the right end of the upper rocker arm (5) is connected with an upper round block and a lower round block, the upper round block and the lower round block are arranged at intervals and are sleeved on a rotating shaft (2.5), a half gear (4) is arranged on the rotating shaft (2.5) between the upper round block and the lower round block, and the two upper rocker arms (5) can be linked through the meshed half gears (4);

The left end of the lower rocker arm (12) is connected with an upper end block and a lower end block, the upper end block and the lower end block are arranged at intervals and are sleeved on a rotating shaft (2.5), a half gear (4) is arranged on the rotating shaft (2.5) between the upper end block and the lower end block, and the two lower rocker arms (12) can be linked through the meshed half gears (4).

4. A swimming stroke assisting rehabilitation exercise trainer according to claim 2, wherein: wedge-shaped sliding grooves (12.1) are formed in the outer side face of the lower rocker arm (12), inverted buckle block sliding blocks (13.1) matched in size are arranged corresponding to the sliding grooves (12.1), and the inverted buckle block sliding blocks (13.1) are connected with the upward pedal (13) to be linked.

5. A swimming stroke assisting rehabilitation exercise trainer according to claim 1 or 2, wherein: the front end and the rear end of the middle frame (2) are provided with transverse sliding grooves (2.4), the middle sliding rod (3) is arranged on the transverse sliding grooves (2.4) through a lock button (3.1), and the left and right positions of the sliding rod (3) in the transverse sliding grooves (2.4) of the middle frame (2) are adjusted through the lock button (3.1).

6. A swimming stroke rehabilitation exercise trainer according to claim 1,2 or 4, wherein: the lower extreme of going up slide bar (6) is connected with piston rod (7.2), the right-hand member department of going up rocking arm (5) below is connected with base (7.1), be connected with adjustable attenuator on base (7.1), piston rod (7.2) right-hand member is connected with adjustable attenuator.

7. A swimming stroke assisting rehabilitation exercise trainer according to claim 1, wherein: the head support assembly (18) and the hip plate (22) are respectively arranged on rotating shafts (2.5) at the front end and the rear end of the middle frame (2), and the chest plate (19), the anti-rolling frame (20) and the waist web (21) are arranged in corresponding first sliding grooves (2.1), second sliding grooves (2.2) and third sliding grooves (2.3) on the middle frame (2) and can be adjusted in position; the first sliding chute (2.1) and the third sliding chute (2.3) are transverse strip-shaped grooves, and the second sliding chute (2.2) is a longitudinal strip-shaped groove.

8. A swimming stroke rehabilitation exercise trainer according to claim 3, wherein: the left end in spout (12.1) of lower rocking arm (12) is fixed with the extension spring, the extension spring other end is fixed in on back-off piece slide (13.1) of back-off footboard (13) in order to realize providing shank extension resistance and the automatic return of back-off footboard (13).

9. A swimming stroke rehabilitation exercise trainer according to claim 1 or 7, wherein: the left end of the lower rocker arm (12) is sunken with a notch, and the hip plate (22) can be installed in the notch; the right end of the lower rocker arm (12) is connected with a landing rod with a roller;

The head rest assembly (18) comprises a head rest and an installation pipe, the installation pipe is connected with the left end of the middle frame (2), the head rest is connected with a telescopic rod, the right end of the telescopic rod stretches into the installation pipe, a moving groove is formed in the installation pipe, an anti-falling block (18.1) is arranged above the moving groove, the anti-falling block (18.1) is connected with the telescopic rod in the installation pipe, a locking screw (18.2) is arranged on the linear groove, and the locking screw (18.2) can lock and fix the telescopic rod in the installation pipe.

10. A swimming stroke assisting rehabilitation exercise trainer according to claim 1, wherein: two fixing plates (14) are connected to the underframe (1), and the other ends of the two push-down frames (14.1) are fixed to the fixing plates (14) to be supported.