CN114344815B

CN114344815B - Portable multifunctional abdominal strength trainer

Info

Publication number: CN114344815B
Application number: CN202210058056.7A
Authority: CN
Inventors: 杨温豪; 李翠红
Original assignee: Zhengzhou University of Science and Technology
Current assignee: Zhengzhou University of Science and Technology
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-10-04
Anticipated expiration: 2042-01-19
Also published as: CN114344815A

Abstract

The invention relates to a portable multifunctional abdominal strength trainer, which solves the problems that the existing equipment has a single training mode, is tedious, heavy and not easy to carry, and cannot be used for portable training anytime and anywhere; the rubber rope is designed at the position of the fixed shoulder strap and pulled to enable the trainee to be in a back upright state, the rubber rope is pressed on the wire pressing rod through steering and then connected to the hanging ring, the trainee can pull the hanging ring, and the training difficulty is increased for the trainee.

Description

Portable multifunctional abdominal strength trainer

Technical Field

The invention relates to the technical field of abdominal strength training, in particular to a portable multifunctional abdominal strength trainer.

Background

The abdominal strength training can be carried out in various types and forms, the existing abdominal strength training generally needs a sports training device, but the existing training device is not only heavy, but also not easy to carry and carry, so that the training personnel can only carry out training at a fixed place, for the personnel carrying out abdominal training, the existing training device can only carry out single training aiming at the abdomen, and the heavy training device occasionally causes injury to the training personnel; in the prior art, there is not a light and multi-functional trainer, can train according to training personnel's mode, can train anytime and anywhere, make belly strength training more high-efficient, more convenient.

In view of the above, we provide a portable multifunctional abdominal strength trainer for solving the above problems.

Disclosure of Invention

Aiming at the situation and overcoming the defects of the prior art, the invention provides a portable multifunctional abdominal strength trainer which adopts a wearable arrangement, wherein a rubber rope is connected with a lower fixing plate through an upper fixing plate, the rubber rope is connected with a take-up device, the rubber rope is pulled to enable a trainer to overcome tension force to exercise, a trigger device is arranged to control the training mode and position by the trainer, the rubber rope is pulled to enable the trainer to be in a back upright state at the position of a fixed shoulder strap, and the rubber rope can be pulled to increase the training strength.

Portable multi-functional belly strength training ware, a serial communication port, including the upper fixed plate, upper fixed plate inside slidable mounting has fixed frid and fixed slot board to connect inside the upper fixed plate through first electric telescopic handle, upper fixed plate both sides side is rotated and is installed folding leg and folding leg bottom fixed mounting who each other is the symmetry, the bottom plate passes through the rubber rope to be connected in the take-up of fixed mounting at the bottom plate lateral wall in upper fixed plate and rubber rope through the bottom plate, bottom plate inside slidable mounting has fixed frid and fixed slot board to connect inside the bottom plate through first electric telescopic handle, upper fixed plate both sides wall fixed mounting has the trigger device of mutual symmetry.

Preferably, the triggering device comprises an arm protection plate rotatably mounted on the side wall of the upper fixed plate, the arm protection plate is connected with a take-up pulley rotatably mounted on the side wall of the upper fixed plate through a cord, a left triggering plate and a right triggering plate are fixedly mounted on the two side walls of the upper fixed plate, a triggering slider is slidably mounted inside the left triggering plate and the right triggering plate and is matched with the cord for use, and a first triggering switch is fixedly mounted on the side wall of the upper fixed plate and is matched with the arm protection plate.

Preferably, take-up includes that fixed mounting has a plurality of solidus boards at the guide way board of bottom plate lateral wall and guide way inboard one side slidable mounting, solidus board is close to guide way board lateral wall one side and is connected with the rubber rope that passes the bottom plate, solidus piece lateral wall is provided with blocks, the inside rotation of guide way board is installed first lead screw and first lead screw-thread fit and has slidable mounting in the inside slider of guide way board, the slider is close to solidus board one side and is seted up and set up slide way and slider setting slide way one side rotation with solidus board complex and install the ring gear of acting as go-between, the meshing of ring gear bottom of acting as go-between has drive gear and drive rack coaxial arrangement to have the driving motor of fixed mounting in the slider diapire, the inside equipartition of gear of acting as go-between hinders dog complex groove piece with the solidus board.

Preferably, the fixed frid includes that four sliding frids and two sliding frids that contact pass through the expansion plate and connect, sliding frid lateral wall and first electric telescopic handle slidable mounting, slidable mounting's fixed frid both sides fixed mounting has fixed baldric in the upper fixed plate, the bottom plate bottom is rotated and is installed shank fixing device.

Preferably, shank fixing device installs in the electronic expansion plate of second of bottom plate and second electronic expansion plate bottom fixed mounting has the arc piece including rotating, arc piece both sides are rotated and are installed arc leg guard and two arc leg guard lateral walls and install the matched with magic subsides, a plurality of couples are installed to the electronic expansion plate lateral wall of second.

Preferably, two the fixed baldrics are close to back one side and are installed the rubber rope and the rubber rope turns to be connected with the link of slidable mounting in the bottom plate lateral wall through the rotary drum, the bottom plate lateral wall is installed the wire outlet and bottom plate wire outlet one side slidable mounting has the wire pressing rod, the rubber rope of being connected through bottom plate and top plate is connected in the solidus piece from the wire outlet through the wire pressing rod.

Preferably, the folding frame comprises a sliding plate and a folding rotating plate, protective cloth is fixedly mounted on two sides of the folding frame, the folding rotating plate is rotatably mounted on the protective cloth, two outer sides of the bottom of the folding rotating plate are connected to the rubber rope of the lower fixing plate through two ropes, and two inner sides of the bottom of the folding plate are connected to the wire fixing plate through two ropes.

The beneficial effects of the technical scheme are as follows:

(1) The device adopts the wearing formula setting, and training personnel are wearable on one's body, carries out the belly training, is connected rubber rope and rubber rope through an upper fixed plate and bottom plate and is connected with take-up, and take-up pulls the rubber rope and makes training personnel overcome the pulling force and take exercise, sets up mode and position that trigger device can be trained by training personnel control, through pulling different rubber ropes, can take exercise the muscle at belly, belly lateral part and back.

(2) The position design rubber rope of fixed baldric pulls and makes the training personnel be in the state that stands upright at the back, and the rubber rope is through turning to the pressure on line ball pole, then connects in the link, and training personnel can pull the link and hang the couple department on the electronic expansion plate of second, can be according to pulling length, makes line ball pole press the rubber rope between the upper and lower fixed plate and remove downwards, increases the training degree of difficulty for training personnel.

(3) Set up the folding leg, folding leg accessible cotton rope is connected in take-up, can control the folding leg and open and shut, and control training personnel take exercise lateral part muscle and make the upper and lower fixed plate strut and be in the rest state, use the effort shank, make training personnel vertebra not receive the pressure.

Drawings

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

FIG. 2 is a schematic view of the upper mounting structure of the present invention;

FIG. 3 is an enlarged view of a portion A of the present invention;

FIG. 4 is a schematic view of the folding leg structure of the present invention;

FIG. 5 is a schematic diagram of a lower fixing plate structure according to the present invention;

FIG. 6 is an enlarged view of a portion B of the present invention;

FIG. 7 is a schematic view of a structure of a fixing slot plate according to the present invention;

FIG. 8 is a schematic view of a take-up device according to the present invention;

FIG. 9 is an enlarged view of a portion C of the present invention;

FIG. 10 is a schematic view of a slider configuration according to the present invention;

FIG. 11 is a schematic view of a leg fixing device according to the present invention;

FIG. 12 is a schematic view of the structure of the arc-shaped guard plate of the present invention;

fig. 13 is a schematic diagram of a trigger plate structure according to the present invention.

Detailed Description

The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings of fig. 1 to 13. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.

Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

The embodiment provides a portable multifunctional abdominal strength trainer, which is shown in attached drawings 1 and 2, and comprises an upper fixing plate 1, wherein a fixed groove plate 2 is slidably installed inside the upper fixing plate 1, folding frames 3 which are symmetrical to each other are rotatably installed on two sides of the upper fixing plate 1, a lower fixing plate 4 is fixedly installed at the bottom of each folding frame 3, the upper fixing plate 1 and the folding frames 3 rotate in a ball-hinge manner, the lower fixing plate 4 is connected to the upper fixing plate 1 through a rubber rope, a take-up device fixedly installed on the side wall of the lower fixing plate 4 is connected to the rubber rope through the lower fixing plate 4, the front side, the rear side, the left side and the right side of the upper fixing plate 1 are respectively connected to the lower fixing plate 4 through the rubber rope, the rubber rope on the four sides is respectively connected to the take-up device through the lower fixing plate 4, each side of the rubber rope is bundled to be connected to the take-up device (as shown in the attached drawing 2), a rotating wheel can be arranged at the position where the upper fixing plate 1 is connected to the rubber rope, the rotating wheel is adjusted to adjust the distance between the upper fixing plate 1 and the lower fixing plate 4, the fixing plate 4 is slidably installed inside the fixed groove plate 2, and two trigger devices which are symmetrical to the two side walls of the upper fixing plate 1 are fixedly installed;

the fixed groove plate 2 comprises four sliding groove plates 22, the two sliding groove plates 22 which are in contact with each other are connected through an expansion plate 23, a first electric telescopic rod 24 is installed on the outer side wall of each sliding groove plate 22 in a sliding mode, the other side of the first electric telescopic rod 24 is fixedly installed on the inner wall of the upper fixed plate 1, a first electric telescopic rod which is installed on each sliding groove plate 22 in a sliding mode is fixedly installed on the inner wall of the lower fixed plate 4, the first electric telescopic rods 24 are electrically connected to the microcontroller, the two first electric telescopic rods 24 on the opposite sides are started and stopped simultaneously, the fixed groove plates 2 are located in the centers of the upper fixed plate 1 or the lower fixed plate 4, fixed shoulder straps 25 are fixedly installed on the two sides of the fixed groove plates 2 which are installed in the upper fixed plate 1 in a sliding mode, and a leg fixing device is installed at the bottoms of the lower fixed plate 4 in a rotating mode; the folding frame 3 comprises a sliding plate 35 and a folding rotating plate 36, protective cloth 37 is fixedly arranged on two sides of the folding frame 3, and the folding rotating plate 36 is rotatably arranged on the protective cloth 37, as shown in fig. 4, two outer sides of the bottom of the folding rotating plate 36 are connected with the rubber rope of the lower fixed plate 4 through two ropes, when the two rubber ropes on the outer side of the folding rotating plate 36 are pulled, the folding frame 3 contracts, the distance between the upper fixed plate 1 and the lower fixed plate 4 is reduced, and when the rubber rope between the upper fixed plate 1 and the lower fixed plate 4 on one side of the folding frame 3 is pulled, the upper fixed plate 1 inclines downwards, so that the rubber rope connected on the outer side of the folding rotating plate 36 is fixed with the rubber rope on the upper fixed plate 1 on one side of the folding frame 3 and is connected with a take-up device; two inner sides at the bottom of the folding rotating plate 36 are connected to the wire fixing plate 13 through two rubber rope ropes, when the two rubber ropes at the inner side of the folding rotating plate 36 are pulled, the folding rotating plate 36 rotates towards one side in the opposite direction, the folding frame 3 is unfolded, and the distance between the upper fixing plate 1 and the lower fixing plate 4 is increased.

In the initial state, the device can be worn on the body by a trainer, a separation layer cloth can be arranged in the device to avoid directly contacting the surface of the human body, the upper fixing plate 1 is fixed at the chest position of the trainer, the lower fixing plate 4 is fixed at the lower part of the abdomen of the trainer, then the fixing shoulder strap 25 can be adjusted and fixed, the fixed groove plate 2 is positioned in the upper fixing plate 1 or the lower fixing plate 4 under the contractility of the first electric telescopic rod 24, the expansion plate 23 between the sliding groove plates 22 is in an open state, when the trainer uses the device, the trainer wears the device on the body, the positions of the upper fixing plate 1 and the lower fixing plate 4 are adjusted to be fixed after the contraction of the fixed shoulder strap 25, starting a first electric telescopic rod 24, enabling a sliding groove plate 22 to slide towards a human body and a telescopic plate 23 to contract until the sliding groove plate is fixed on the surface of the human body, enabling an upper fixing plate 1 and a lower fixing plate 4 to be fixed at the lower positions of the chest and the abdomen of the human body, manually triggering a trigger device, controlling a take-up device to contract rubber ropes, enabling the ropes fixed on one side of the upper fixing plate 1 to be pulled, enabling a trainer to bend towards the pulled side, overcoming the pulling force to train the abdomen strength, and tightening the rubber ropes around the upper fixing plate 1 by the take-up device according to the trigger device to train muscles on the front side, the left side, the right side and the rear side of the abdomen; the triggering device can trigger the rubber ropes on the front side, the rear side, the left side and the right side of the upper fixing plate 1, the rubber ropes on the left side and the right side are connected with the two rubber ropes on the outer side of the folding rotating plate 36 on one side, the rubber ropes on the inner side of the folding rotating plate 36 are uniformly connected to the wire take-up device, the wire take-up device tightens the rubber ropes on the front side of the upper fixing plate 1 to enable a trainer to bend forwards, and the trainer overcomes the force of the forward bending to enable the muscles on the back of the abdomen to be forcibly stretched to exercise the muscles on the back of the abdomen; when the wire take-up device tightens up the bungee cord on one side of the abdomen, the folding leg 3 contracts along with the contraction of the bungee cord, and meanwhile, the abdominal muscles on the other side are exercised.

Referring to fig. 11 and 12, the leg fixing device includes a second electric expansion plate 26 rotatably mounted on the lower fixing plate 4, an arc block 27 is fixedly mounted at the bottom of the second electric expansion plate 26, the second electric expansion plate 26 is electrically connected to the microcontroller, arc leg guards 28 are rotatably mounted on two sides of the arc block 27, magic tapes 29 matched with the two arc leg guards 28 are mounted on the side walls of the two arc leg guards 28, and a plurality of hooks 30 are mounted on the side walls of the second electric expansion plate 26;

the rubber ropes are arranged on one sides, close to the back, of the two fixed shoulder straps 25, are connected with hanging rings 32 which are slidably mounted on the side walls of the lower fixing plate 4 in a turning mode through rotary drums 31, wire outlet holes 33 are arranged on the side walls of the lower fixing plate, wire pressing rods 34 are slidably mounted on one sides of the wire outlet holes 33 of the lower fixing plate 4, the rubber ropes connected with the upper fixing plate 1 through the lower fixing plate 4 and the rubber ropes in the folding frames 3 go out of the wire outlet holes 33 and are connected with the wire fixing plates 13 through the wire pressing rods 34, the rubber ropes connected with the two fixed shoulder straps 25 are turned through the rotary drums 31 and then are combined into one rope, and the rope is connected with the hanging rings 32 through transition wheels in a 'n' -shaped mode around the wire pressing rods 34 (as shown in figure 6).

In an initial state, the second electric expansion plate 26 is in a contraction state, the two arc foot protection plates are in an opening state, the rubber rope connected with the fixed shoulder belt 25 is in a stretched state, the back of a trainer is in an upright state, and the humpback correction function is achieved, the rubber rope winds the line pressing rod 34, and the bottom of the line pressing rod 34 is in contact with the rubber rope coming out of the line outlet hole 33; when a trainer uses the device, the trainer starts the second electric expansion plate 26 to adjust the distance between the arc-shaped leg protection plate 28 and the fixed position of the leg, then rotates the two arc-shaped leg protection plates 28 to be attached to the legs of the trainer and fixes the legs by the magic tape 29, then the trainer can trigger the trigger device to enable the take-up device to take up the wires and exercise the muscles around the abdomen, when the exercise intensity needs to be increased, the hanging ring 32 can be pulled to hang at the hook 30, the exercise intensity is increased as the hanging ring is closer to the arc-shaped block 27, firstly, when the hanging ring 32 is pulled, the fixed shoulder belt 25 is inclined towards the rear side, the trainer needs to enable the muscles on the front side of the abdomen to be forcefully exercised, and the human body is not inclined; secondly, when dragging link 32 and hanging in couple 30 department, make fixed baldric 25 department bungee dragged and bungee cord possess elasticity, and make and be the line ball pole 34 that "nearly" style of calligraphy was walked around by bungee cord and receive pressure, line ball pole 34 lapse, line ball pole 34 makes 34 lower part contact bungee cord of line ball pole rise downwards, make the bungee cord between upper fixed plate 1 and the bottom plate 4 stretched this moment, elasticity increases, take-up is when tightening up, make the pulling force increase of bungee cord, the strength increase of bungee cord is overcome to the training personnel, play the effect that the intensity was tempered in the increase.

Referring to fig. 2 and 3, the trigger device includes an arc-shaped turntable 5 rotatably mounted inside an upper fixed plate 1, an arm guard plate 6 is rotatably mounted on a side wall of the arc-shaped turntable 5, a restraining belt is mounted on an upper portion of the arm guard plate 6 and can fix an arm of a trainer, the arm guard plate 6 is connected with a take-up pulley 7 rotatably mounted on a side wall of the upper fixed plate 1 through a cord, the take-up pulley 7 can be mounted with a torsion spring or a coil spring, when the take-up pulley 7 is pulled by the cord to rotate, the cord can recover an initial state under the action of the torsion spring or the coil spring without being forced, a left trigger plate 8 and a right trigger plate 9 are fixedly mounted on two side walls of the upper fixed plate 1, a trigger slider 10 is slidably mounted inside the left trigger plate 8 and the right trigger plate 9 and the trigger slider 10 is used in cooperation with the cord, a trigger switch matched with the bottom of the trigger slider 10 and electrically connected to a microcontroller, a first trigger slider, a second trigger slider and a third trigger slider are slidably mounted inside the right trigger plate 9 and a fourth trigger slider 10 and a sixth trigger slider, a first trigger switch 11 is electrically connected to the side wall of the upper fixed plate 1 and an arm switch 11 are electrically connected to the guard plate.

In an initial state, after a trainer wears the training device, two arms are respectively fixed inside the arm protection plate 6, the take-up pulley 7 is in a take-up state, a cord between the take-up pulley 7 and the arm protection plate 6 is not stretched, the first trigger switches 11 on two sides of the upper fixing plate 1 are in a contacted state, and the trigger device does not work when the two first trigger switches 11 are in the contacted state; when a trainer trains, the trainer can lift the left arm to enable the left arm protection plate 6 to leave the first trigger switch 11, the right arm still contacts the first trigger switch 11, when the trainer lifts the arm, no matter to the front side or the rear side and right above, the first trigger slider or the second trigger slider or the third trigger slider is triggered, and each slider 16 contacts the trigger switch, even if the microcontroller controls the wire take-up device to tighten a rubber rope fixed on the left upper fixing plate 1, a human body is stressed and bent to the left side of the abdomen, the trainer can control the right muscle of the abdomen to exert force and exercise; similarly, the arm on the right side of the trainer is lifted, the arm leaves the first trigger switch 11, contacts the fourth trigger slide block, the fifth trigger slide block or the sixth trigger slide block and triggers the trigger switch, namely the take-up device tightens the rubber rope fixedly connected with the right side of the upper fixing plate 1 and the lower fixing plate 4, so that the trainer bends towards the right side, and meanwhile, the trainer can exercise the muscle on the left side of the left abdomen and overcome the force bending towards the right; when a trainer exercises the muscles on the front side of the abdomen or the back of the abdomen, the two arms can be lifted simultaneously, the arm protection plates 6 on the left side and the right side are separated from the first trigger switch 11, the two arms incline forwards and trigger the first trigger slide block on the left side and the fourth trigger slide block on the right side, the rubber ropes on the rear sides of the upper fixing plate 1 and the lower fixing plate 4 are contracted, the trainer bends backwards and inclines, and the trainer does not bend backwards, so that the front muscles of the abdomen can take the backward bending force with a force gram and exercises the strength of the front muscles of the abdomen; when two arms of a trainer are lifted up in a backward tilting manner, the cord connected with the arm guard plate 6 contacts the third trigger slide block and the sixth trigger slide block and triggers the trigger switch, the cord take-up device is triggered to tighten the rubber cord between the front sides of the upper fixed plate 1 and the lower fixed plate 4, so that the trainer bends towards the front side, and at the moment, the trainer can make abdominal back muscles exert force to overcome the force to train the abdominal back muscle force; when two arms of a trainer are lifted vertically upwards, the second trigger slide block and the fifth trigger slide block are triggered, the take-up device contracts the two lines of ropes on the inner side of the folding rotating plate 36, so that the folding frame 3 is in an open state, the distance between the upper fixing plate 1 and the lower fixing plate 4 is increased, the acting force of the rubber rope between the upper fixing plate 1 and the lower fixing plate 4 acts on the lower fixing plate 4 and is transmitted to the legs through the second electric expansion plate 26 and the arc-shaped block 27, the trainer is in a relaxed state, and the upper limb spine is not pressed by the pulling force of the rubber rope and the gravity of the device.

Referring to fig. 8 and 9, the take-up device includes a guide groove plate 12 fixedly installed on a side wall of a lower fixing plate 4, and a plurality of wire fixing plates 13 are uniformly and slidably installed on a circumference of one side of the inner side of the guide groove plate 12, the plurality of wire fixing plates 13 are respectively connected with rubber ropes on the front side, the left side, the right side, the rear side of an upper fixing plate 1 and the inner side of a folding rotating plate 36, one side of the wire fixing plate 13 close to the side wall of the guide groove plate 12 is connected with the rubber ropes fixed by the upper fixing plate 1, a blocking block 14 is arranged on the outer side wall of the wire fixing plate 13, a first lead screw 15 is rotatably installed in the guide groove plate 12, a sliding block 16 slidably installed in the guide groove plate 12 is in threaded fit with the first lead screw 15, a motor fixedly installed on the outer side wall of the guide groove plate 12 coaxially and rotatably installed in a microcontroller, a sliding groove 17 matched with the wire fixing plate 13 is formed in the side of the sliding block 16 close to the wire fixing plate 13, a wire ring 18 is rotatably installed on one side of the sliding groove 17, a wire ring 18 is engaged with a driving gear 19, the driving motor 20 coaxially installed in the sliding groove 19 and the sliding block 21 is uniformly and is installed in the sliding groove plate 13.

In an initial state, the wire fixing plate 13 is installed inside the guide groove plate 12 in a matched mode, the front end of the wire fixing plate 13 protrudes out of the side wall of the guide groove plate 12, the sliding groove 17 in the sliding block 16 is matched with the wire fixing plate 13, and the groove block 21 in the wire pulling toothed ring 18 and the blocking block 14 are in a staggered position; when a trainer triggers a trigger device, a microcontroller sends a signal to a driving motor 20, the driving motor 20 drives a driving gear 19 to rotate and drives a meshing wire-drawing toothed ring 18 to rotate, the wire-drawing toothed ring 18 rotates to enable an inner groove block 21 to rotate, the inner groove block rotates to the position where a rubber rope to be tightened is connected with a wire fixing plate 13 and is matched with a blocking block 14 at the front end of the wire fixing plate 13, at the moment, the motor drives a first lead screw 15 to rotate, a sliding block 16 slides in the direction away from the wire fixing block, the wire-drawing toothed ring 18 slides along with the sliding block 16, the groove block 21 resists against the matched blocking block 14 to slide together, the wire fixing plate 13 pulls the rubber rope connected with the wire fixing plate 13 along with the sliding of the sliding block 16, and the rubber rope is tightened; after the training of the training personnel is finished, the motor drives the first screw rod 15 to recover the initial position, the sliding block 16 drives the stay wire toothed ring 18 to recover the initial position, the driving motor 20 drives the driving gear 19 to rotate to the initial position, and the groove block 21 in the stay wire toothed ring 18 is separated from the blocking block 14 to recover the initial position.

The above description is only for the purpose of illustrating the present invention, and it should be understood that the present invention is not limited to the above embodiments, and various modifications conforming to the spirit of the present invention are within the scope of the present invention.

Claims

1. The portable multifunctional abdominal strength trainer is characterized by comprising an upper fixing plate (1), wherein a fixed groove plate (2) is slidably mounted inside the upper fixing plate (1), folding frames (3) which are symmetrical to each other are rotatably mounted on two sides of the upper fixing plate (1), a lower fixing plate (4) is fixedly mounted at the bottom of each folding frame (3), the lower fixing plate (4) is connected to the upper fixing plate (1) through a rubber rope, the rubber rope is connected with a take-up device fixedly mounted on the side wall of the lower fixing plate (4) through the lower fixing plate (4), the fixed groove plate (2) is slidably mounted inside the lower fixing plate (4), and trigger devices which are symmetrical to each other are fixedly mounted on two side walls of the upper fixing plate (1);

the trigger device comprises an arc-shaped turntable (5) rotatably mounted in an upper fixing plate (1), an arm protection plate (6) is rotatably mounted on the side wall of the arc-shaped turntable (5), the arm protection plate (6) is connected with a take-up pulley (7) rotatably mounted on the side wall of the upper fixing plate (1) through a cord, a left trigger plate (8) and a right trigger plate (9) are fixedly mounted on the two side walls of the upper fixing plate (1), a trigger slider (10) is slidably mounted in the left trigger plate (8) and the right trigger plate (9), a first trigger switch (11) is fixedly mounted on the side wall of the upper fixing plate (1), and the first trigger switch (11) is matched with the arm protection plate (6);

take-up includes that fixed mounting has a plurality of solidus boards (13) at guide way board (12) and guide way board (12) inslot one side circumference equipartition slidable mounting of bottom plate (4) lateral wall, solidus board (13) are close to guide way board (12) lateral wall one side and are connected with the rubber rope that upper fixed plate (1) is fixed, solidus piece lateral wall is provided with blocks piece (14), guide way board (12) internal rotation installs first lead screw (15) and first lead screw (15) screw-thread fit has slidable mounting in the inside slider (16) of guide way board (12), slider (16) are close to solidus board (13) one side and offer with solidus board (13) complex sliding tray (17) and slider (16) one side rotation install act as go-between ring (18), act as go-between ring (18) bottom meshing have drive gear (19) and drive gear (19) coaxial arrangement have fixed mounting in the driving motor (20) of slider (16) diapire, the inside equipartition of act as go-between gear and block piece (14) complex groove piece (21) of solidus board (13).

2. The portable multifunctional abdominal strength trainer according to claim 1, wherein the fixed slot plate (2) comprises four sliding slot (17) plates, two contacting sliding slot (17) plates are connected by a telescopic plate (23), the outer side wall of the sliding slot (17) plate is slidably provided with a first electric telescopic rod (24), the other side of the first electric telescopic rod (24) is fixedly arranged on the inner wall of the upper and lower fixed plates (4), the two sides of the fixed slot plate (2) slidably arranged in the upper fixed plate (1) are fixedly provided with fixed shoulder straps (25), and the bottom of the lower fixed plate (4) is rotatably provided with a leg fixing device.

3. The portable multifunctional abdominal strength trainer according to claim 2, wherein the leg fixing device comprises a second electric expansion plate (26) rotatably mounted on the lower fixing plate (4) and an arc-shaped block (27) fixedly mounted at the bottom of the second electric expansion plate (26), the arc-shaped block (27) is rotatably mounted at two sides with arc-shaped leg guards (28) and the two arc-shaped leg guards (28) are mounted at the side walls with matched magic tapes (29), and the second electric expansion plate (26) is mounted at the side walls with hooks (30).

4. The portable multifunctional abdominal strength trainer according to claim 2, wherein the two shoulder straps (25) are provided with rubber ropes on the side close to the back and the rubber ropes are connected with hanging rings (32) slidably mounted on the side wall of the lower fixing plate (4) in a turning way through a drum (31), the side wall of the lower fixing plate is provided with wire outlets (33) and one side of the wire outlets (33) of the lower fixing plate (4) is slidably mounted with a wire pressing rod (34), and the rubber ropes connected with the upper fixing plate (1) through the lower fixing plate (4) are led out of the wire outlets (33) and connected with the wire fixing plate (13) through the wire pressing rod (34).

5. The portable multifunctional abdominal strength trainer according to claim 4, wherein the folding frame (3) comprises a sliding plate (35) and a folding rotating plate (36), protective cloth (37) is fixedly arranged on two sides of the folding frame (3) and the folding rotating plate (36) is rotatably arranged on the protective cloth (37), two outer sides of the bottom of the folding rotating plate (36) are connected to the rubber rope of the lower fixed plate (4) through two rubber ropes, and two inner sides of the bottom of the folding rotating plate (36) are connected to the wire fixing plate (13) through two rubber ropes.