CN113680017A

CN113680017A - A kind of aerobic exercise physical training device

Info

Publication number: CN113680017A
Application number: CN202110889599.9A
Authority: CN
Inventors: 王春明
Original assignee: Jilin Agricultural Science and Technology College
Current assignee: Jilin Agricultural Science and Technology College
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2021-11-23

Abstract

The invention discloses an aerobic exercise physical training device, comprising a bottom plate, a first training mechanism, a second training mechanism and a third training mechanism are arranged on the bottom plate in sequence, the first training mechanism comprises a back plate and an arm strength training device, and the top of the bottom plate is provided with a first training mechanism, a second training mechanism and a third training mechanism in sequence. There are four groups of struts A for supporting the backboard, and the side of the bottom plate close to the struts A is provided with a screw rod adjustment piece for driving the adjustment position of the arm strength trainer; there are crossbars on both sides of the backboard, and the crossbar is slidably arranged There is a sliding seat, the sliding seat is disassembled and connected with the arm strength training device, and the side of the sliding seat away from the second training mechanism is connected with a high-position pull-down reset piece, which is used to pull the sliding seat to reset when sliding on the cross bar; the present invention is based on the present invention. There is a need to design, three groups of training institutions can be used together, and the training institutions can switch to different states according to the needs of personnel, which is convenient for personnel to exercise in a variety of ways, effectively carry out targeted training, and improve the training effect, and each training institution can adjust Stable, easy to disassemble when switching states.

Description

Aerobic exercise physical training device

Technical Field

The invention relates to the technical field of training equipment, in particular to an aerobic exercise physical training device.

Background

In aerobic training, various types of training equipment are used. Current patent publication No. is CN110960831B discloses a fat exercise device fires, through being provided with supplementary base member, upper limbs training ware, produce depressor, benchmark pipe, low limbs training ware, booster and lock card ware, can carry out aerobic exercise and anaerobic exercise, can train arm and shank through upper limbs training ware and low limbs training ware.

However, the exercise device has the following disadvantages when in use: 1. the exercise mode of the arms and the legs is limited, so that the exercise device has limitation; 2. when the user exercises arms, the user has limited force due to lying on the upper base body, and the back training is not facilitated; 3. the chest is pressed during training, and the chest is easy to feel uncomfortable after long-time exercise.

In order to solve the problems, the aerobic exercise physical training device is provided.

Disclosure of Invention

The present invention is directed to an aerobic exercise training device to solve the above problems.

In order to achieve the purpose, the invention provides the following technical scheme:

an aerobic exercise physical training device comprises a bottom plate, wherein a first training mechanism, a second training mechanism and a third training mechanism are sequentially arranged on the bottom plate, the first training mechanism comprises a back plate and an arm strength trainer, four groups of supporting rods A for supporting the back plate are arranged at the top of the bottom plate, and a screw rod adjusting piece for driving the arm strength trainer to adjust the position is arranged on one side of the bottom plate close to the supporting rods A;

the two sides of the back plate are provided with cross rods, sliding seats are arranged on the cross rods in a sliding manner, the sliding seats are detachably connected with the arm strength trainer, and one sides of the sliding seats, far away from the second training mechanism, are connected with high-level pull-down reset pieces for pulling the sliding seats to reset when sliding on the cross rods;

the side, close to the second training mechanism, of the back plate is connected with an extension plate, the bottom of the extension plate is hinged with a support rod B, and an extensible part is arranged between the back plate and the bottom plate and used for adjusting the back plate and the extension plate to rotate to the side, close to the second training mechanism, around the hinged position of the extension plate and the support rod B;

the second training mechanism comprises a crotch supporting pad, the bottom of the crotch supporting pad is connected with a fixing frame with adjustable height, and two sides of the extending plate are connected with leg pressing pads matched with the crotch supporting pad for use;

the third training mechanism comprises a leg pressing rod and a pedal, one side of the leg pressing rod is connected with a support, one end, far away from the leg pressing rod, of the support is hinged to the rotating seat, one side, close to the pedal, of the leg pressing rod is connected with an elastic telescopic piece, and the elastic telescopic piece is used for controlling the leg pressing rod to reset when rotating around the axis of the rotating seat.

Preferably, the high-level pull-down reset piece comprises a tension spring, the tension spring is connected to one side, away from the first training mechanism, of the sliding seat, the tension spring is sleeved on the cross rod, and one end, away from the sliding seat, of the tension spring is connected with the back plate.

Preferably, one side that two sets of seats of sliding kept away from mutually all is equipped with drop handle, drop handle is close to seat of sliding one side and is equipped with the screw rod with the screw thread fit of the seat lateral wall that slides.

Preferably, the extensible member is including connecting the fixing base at the bottom plate top, one side that the bottom plate was kept away from to the fixing base is rotated and is connected the hydraulic telescoping rod that two sets of symmetries set up, the backplate bottom is equipped with two sets of mount pads, hydraulic telescoping rod keeps away from the one end rotation connection mount pad of fixing base.

Preferably, the mount is including connecting the fixed cover at the bottom plate top, the bottom plate top is equipped with the diagonal brace that is used for supporting fixed cover, fixed cover is kept away from bottom plate one end sliding connection dead lever, fixed cover one end pole body joint support board is kept away from to the dead lever, the backup pad is connected in crotch supporting pad bottom, fixed cover is last to be equipped with the fixed button that is used for fixed dead lever sliding position.

Preferably, two sets of leg pressing pad symmetry sets up in extension board both sides, and two sets of leg pressing pads pass through linking the pole and connect, be equipped with on the extension board and be used for linking the pole and pass and with linking pole sliding fit's shifting chute, one side that the extension board is close to the bottom plate is equipped with the location button that is used for fixed linking pole sliding position in the shifting chute.

Preferably, the elastic telescopic part comprises a limiting block rotatably connected with the support and a sleeve rotatably connected with the bottom plate, one side of the limiting block, which is close to the sleeve, is connected with a sliding column, the sliding column extends to an inner cavity of the sleeve to be in sliding fit with the sleeve, and the inner cavity of the sleeve is provided with a spring sleeved on the sliding column; a buckling plate used for fixing the limiting block at the end part of the sleeve is hinged to one side of the sleeve, a connecting bulge is connected to the position, far away from the hinge, of the buckling plate, and a groove matched with the bulge is formed in one side, far away from the sleeve, of the limiting block; one side of the pedal close to the bracket is connected with a fixed rod.

Preferably, the lead screw regulating part comprises two sets of lead screws and a set of driving part, the lead screw is installed between two sets of supporting rods A, a double-shaft motor is arranged in the driving part, the output end of the double-shaft motor is connected with an output rod, one end of the output rod, far away from the driving part, is connected with a driving bevel gear, one end of the lead screw, close to the driving part, extends to the supporting rod A and is connected with a driven bevel gear which is connected with the driving bevel gear in a meshed mode, and the screwing directions of the threads on the lead screw are opposite.

Preferably, the arm strength training device is including removing the seat and holding the board in hand, remove a threaded connection lead screw, remove a top and connect the roof, the roof is close to and holds board one side and connect two sets of montants in hand, it is provided with the board in hand to slide on the montant, it establishes the spring on the montant all to be equipped with the cover in board top and bottom in hand.

Preferably, the top plate is in threaded connection with two groups of symmetrically-arranged fixing bolts, the bottoms of the two side walls of the sliding seat are connected with limiting plates, and the limiting plates are provided with screw holes in threaded fit with the fixing bolts.

Compared with the prior art, the invention has the beneficial effects that:

1. three groups of training mechanisms can be used in a matched mode, the training mechanisms can be switched into different states according to the requirements of personnel, the personnel can exercise in multiple modes conveniently, targeted training is effectively carried out, and the training effect is improved;

2. when the back plate and the extension plate are used in a flat state, the first training mechanism is matched with the second training mechanism, so that arm training and leg bending training can be performed, or stretching or flat-plate horizontal-pushing training and the like can be performed when the back plate and the extension plate are laid on the back plate;

3. when the back plate and the extension plate are adjusted to be vertical to the bottom plate, a person can perform sitting posture high-position pull-down training by sitting on the crotch support cushion to face the back plate, and can perform leg training by using a third training mechanism when sitting on the crotch support cushion to back the back plate; when the back plate is adjusted to be inclined, the bending training or other stretching training of the upper inclined flat arm can be carried out;

4. according to the invention, each training mechanism is stably regulated, the sliding seat can be matched with an arm strength trainer for use or a high-level pull-down reset piece for use, the sliding seat is convenient to disassemble and assemble when in a switching state, the crotch support pad is convenient for regulating the height to be matched with the first training mechanism or the third training mechanism for use, and the leg pressing rod can be quickly released from fixation to be matched with the second training mechanism for use.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of a first training mechanism according to the present invention.

Fig. 3 is a schematic structural diagram of a second training mechanism according to the present invention.

Fig. 4 is a schematic structural diagram of a third training mechanism according to the present invention.

Fig. 5 is a schematic structural diagram of switching the use state according to the present invention.

Fig. 6 is a schematic structural view of the back plate and the extension plate after being turned over.

FIG. 7 is a schematic view of the structure of the spool extending from the sleeve in the present invention.

Fig. 8 is a schematic view of the structure of the interior of the sleeve of the present invention.

In the figure: 11-bottom plate, 12-first training mechanism, 13-second training mechanism, 14-third training mechanism, 15-back plate, 16-extension plate, 17-leg pressing pad, 18-moving groove, 19-fixing seat, 20-hydraulic telescopic rod, 21-moving seat, 22-hand grasping plate, 23-vertical rod, 24-top plate, 25-screw rod, 26-driving piece, 27-output rod, 28-support rod A, 29-support rod B, 30-cross rod, 31-sliding seat, 32-tension spring, 33-crotch supporting pad, 34-fixing rod, 35-fixing sleeve, 15-extension plate, 17-leg pressing pad, 18-moving groove, 19-fixing seat, 20-hydraulic telescopic rod, 21-moving seat, 22-hand grasping plate, 23-vertical rod, 24-top plate, 25-screw rod, 26-driving piece, 27-output rod, 28-support rod A, 29-support rod B, 30-cross rod, 31-sliding seat, 32-tension spring, 33-crotch supporting pad, 34-fixing rod, 35-fixing sleeve, 36-inclined support rod, 37-pedal, 38-fixed rod, 39-leg pressing rod, 40-bracket, 41-sleeve, 42-sliding column, 43-clamping plate, 44-limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, in an embodiment of the present invention, an aerobic exercise physical training device includes a bottom plate 11, a first training mechanism 12, a second training mechanism 13, and a third training mechanism 14 are sequentially disposed on the bottom plate 11, the first training mechanism 12 includes a back plate 15 and an arm strength trainer, four sets of support rods a28 for supporting the back plate 15 are disposed at the top of the bottom plate 11, and a lead screw adjusting element for driving the arm strength trainer to adjust a position is disposed at one side of the bottom plate 11 close to the support rods a 28;

the two sides of the back plate 15 are provided with cross bars 30, the cross bars 30 are provided with sliding seats 31 in a sliding manner, the sliding seats 31 are detachably connected with the arm strength trainer, and one side, away from the second training mechanism 13, of each sliding seat 31 is connected with a high-level pull-down reset piece for resetting when the sliding seat 31 is pulled to slide on the cross bars 30;

the side, close to the second training mechanism 13, of the back plate 15 is connected with an extension plate 16, the bottom of the extension plate 16 is hinged with a supporting rod B29, and an expansion piece is arranged between the back plate 15 and the bottom plate 11 and used for adjusting the back plate 15 and the extension plate 16 to rotate to the side, close to the second training mechanism 13, around the hinged position of the extension plate 16 and the supporting rod B29;

the second training mechanism 13 comprises a crotch support pad 33, the bottom of the crotch support pad 33 is connected with a height-adjustable fixing frame, and two sides of the extension plate 16 are connected with leg pressing pads 17 matched with the crotch support pad 33;

the third training mechanism 14 comprises a leg pressing rod 39 and a pedal 37, one side of the leg pressing rod 39 is connected with a support 40, one end of the support 40, far away from the leg pressing rod 39, is hinged to the rotating seat, and one side of the leg pressing rod 39, close to the pedal 37, is connected with an elastic telescopic part and is used for controlling the leg pressing rod 39 to reset when rotating around the axis of the rotating seat.

The high-position pull-down reset piece comprises a tension spring 32, the tension spring 32 is connected to one side, away from the first training mechanism 12, of the sliding seat 31, the tension spring 32 is sleeved on the cross rod 30, and one end, away from the sliding seat 31, of the tension spring 32 is connected with the back plate 15; one side of each of the two groups of sliding seats 31, which is far away from the corresponding sliding seat, is provided with a pull-down handle, and one side of each of the pull-down handles, which is close to the corresponding sliding seat 31, is provided with a screw rod in threaded fit with a screw hole in the side wall of the corresponding sliding seat 31;

when adjusting backplate 15 and extension board 16 through the extensible member and being perpendicular with bottom plate 11, can remove the seat of sliding 31 and arm strength training ware be connected, with the pull-down handle installation, make things convenient for personnel to carry out the high-order pull-down training of position of sitting.

The telescopic piece comprises a fixed seat 19 connected to the top of the bottom plate 11, one side of the fixed seat 19, far away from the bottom plate 11, is rotatably connected with two groups of symmetrically arranged hydraulic telescopic rods 20, two groups of mounting seats are arranged at the bottom of the back plate 15, and one end, far away from the fixed seat 19, of each hydraulic telescopic rod 20 is rotatably connected with the mounting seats; in actual use, the extension of the hydraulic telescopic rod 20 can control the back plate 15 and the extension plate 16 to rotate around the hinge joint of the extension plate 16 and the strut B29 to the side close to the second training mechanism 13.

The fixing frame comprises a fixing sleeve 35 connected to the top of the bottom plate 11, an inclined stay bar 36 for supporting the fixing sleeve 35 is arranged at the top of the bottom plate 11, one end, far away from the bottom plate 11, of the fixing sleeve 35 is connected with a fixing rod 34 in a sliding mode, one end, far away from the fixing sleeve 35, of the fixing rod 34 is connected with a support plate through a rod body, the support plate is connected to the bottom of the crotch support pad 33, and a fixing button for fixing the sliding position of the fixing rod 34 is arranged on the fixing sleeve 35; the fixing frame can support the crotch supporting pad 33, when a person lies prone on the back plate 15, the crotch supporting pad 33 can support the crotch of the person, after the back plate 15 is turned over, when the person needs to sit on the crotch supporting pad 33, the height of the crotch supporting pad 33 can be adjusted as required, the fixing rod 34 is made to slide in the fixing sleeve 35 for adjustment, and then the fixing button is used for fixing the position.

The two groups of leg pressing pads 17 are symmetrically arranged on two sides of the extension plate 16, the two groups of leg pressing pads 17 are connected through a connecting rod, a moving groove 18 for the connecting rod to penetrate through and to be in sliding fit with the connecting rod is formed in the extension plate 16, and a positioning button for fixing the sliding position of the connecting rod in the moving groove 18 is arranged on one side, close to the bottom plate 11, of the extension plate 16;

when carrying out the high-order pull-down training of position of sitting, personnel sit on crotch supporting pad 33, and the thigh can be pressed under leg pressing pad 17, can adjust leg pressing pad 17 height this moment as required, uses the fixed linking pole position of location button after the regulation, and personnel pulling pull-down handle drives seat 31 that slides on horizontal pole 30, and later tension spring 32 drives seat 31 that slides and resets, so reciprocal training.

The elastic telescopic piece comprises a limiting block 44 rotatably connected with the support 40 and a sleeve 41 rotatably connected with the bottom plate 11, one side of the limiting block 44 close to the sleeve 41 is connected with a sliding column 42, the sliding column 42 extends to the inner cavity of the sleeve 41 to be in sliding fit with the sleeve 41, and the inner cavity of the sleeve 41 is provided with a spring sleeved on the sliding column 42; a buckling plate 43 for fixing the limiting block 44 at the end part of the sleeve 41 is hinged to one side of the sleeve 41, a protrusion is connected to the position, far away from the hinged part, of the buckling plate 43, and a groove matched with the protrusion is formed in one side, far away from the sleeve 41, of the limiting block 44; a fixed rod 38 is connected to one side of the pedal 37 close to the bracket 40; in practical use, when training waist, abdomen or buttocks, a person can step on the pedal 37 by feet, the leg pressing rod 39 is pressed against the back side of the ankle, the front side of the thigh of the person can be pressed against the crotch supporting pad 33, when the person needs to sit on the crotch supporting pad 33 to perform leg training, the fixing of the limiting block 44 can be released, the buckling plate 43 is far away from the groove, the person sits on the back-to-back plate 15 of the crotch supporting pad 33, can step on the leg pressing rod 39 by feet, exerts force on the legs, enables the leg pressing rod 39 to rotate towards the side far away from the crotch supporting pad 33 around the axis of the rotating seat, when the leg pressing rod rotates, the sliding column 42 slides in the sleeve 41, and the spring can bring resistance to the sliding column 42, so that the leg training is realized.

The screw rod adjusting piece comprises two groups of screw rods 25 and a group of driving pieces 26, the screw rods 25 are arranged between two groups of supporting rods A28, a double-shaft motor is arranged in the driving pieces 26, the output ends of the double-shaft motor are connected with an output rod 27, one end, far away from the driving pieces 26, of the output rod 27 is connected with a driving bevel gear, one end, close to the driving pieces 26, of each screw rod 25 extends into the supporting rod A28 to be connected with a driven bevel gear meshed with the driving bevel gear, and the screwing directions of the threads on the two groups of screw rods 25 are opposite; when the double-shaft motor works, the driven bevel gear can be driven to rotate through the driving of the output rod 27 and the driving bevel gear, so that the lead screw 25 is driven to rotate, two groups of arm strength training devices are driven to synchronously move, and the position of the arm strength training devices on the lead screw 25 can be adjusted conveniently according to the training requirements of personnel.

The arm strength trainer comprises a moving seat 21 and a hand-grasping plate 22, the moving seat 21 is in threaded connection with a lead screw 25, the top of the moving seat 21 is connected with a top plate 24, one side of the top plate 24, which is close to the hand-grasping plate 22, is connected with two groups of vertical rods 23, the hand-grasping plate 22 is arranged on the vertical rods 23 in a sliding manner, and springs sleeved on the vertical rods 23 are arranged at the top and the bottom of the hand-grasping plate 22; the hand-held board 22 is pulled, the hand-held board 22 slides on the vertical rod 23, the spring brings resistance to the hand-held board 22, and drives the hand-held board 22 to reset, and therefore the training purpose is achieved.

The utility model discloses a lead screw regulator, including roof 24, seat 31, backplate 15, sliding seat 31, horizontal pole 30, the threaded connection has two sets of fixing bolt that the symmetry set up on the roof 24, the bottom of the both sides wall of sliding seat is connected with the limiting plate, be equipped with on the limiting plate with fixing bolt screw-thread fit's screw, when backplate 15 was set level, can be connected fixing bolt in the screw of limiting plate to make sliding seat 31 be connected with the arm strength training ware, when lead screw regulator adjusting arm strength training ware removed, sliding seat 3 slided on horizontal pole 30, made the arm strength training ware move can the steady movement.

The working principle of the invention is as follows: when the aerobic exercise physical training device is used, the back plate 15 can be laid flat, the first training mechanism is matched with the second training mechanism to perform arm training and leg bending training, or the device is laid on the back plate 15 to perform stretching or flat plate horizontal pushing training and the like; when the back plate 15 is adjusted to be vertical to the bottom plate, the connection between the sliding seat 31 and the arm strength trainer can be released, and the pull-down handle is installed, so that the personnel can conveniently carry out sitting posture high pull-down training; or the person sits on the crotch support pad 33 and leans against the back plate 15, adjusts the third training mechanism, and carries out leg training in cooperation with the third training mechanism, and the second training mechanism can carry out waist and abdomen or hip training in cooperation with the third training mechanism.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof.

Claims

1. An aerobic exercise physical training device comprises a bottom plate (11), wherein a first training mechanism (12), a second training mechanism (13) and a third training mechanism (14) are sequentially arranged on the bottom plate (11), the first training mechanism (12) comprises a back plate (15) and an arm strength trainer, four groups of supporting rods A (28) for supporting the back plate (15) are arranged at the top of the bottom plate (11), and a screw rod adjusting piece for driving the arm strength trainer to adjust the position is arranged on one side, close to the supporting rods A (28), of the bottom plate (11);

the method is characterized in that: the two sides of the back plate (15) are provided with cross rods (30), sliding seats (31) are arranged on the cross rods (30) in a sliding mode, the sliding seats (31) are detachably connected with the arm strength trainer, and one sides, far away from the second training mechanism (13), of the sliding seats (31) are connected with high-level pull-down reset pieces used for pulling the sliding seats (31) to reset when sliding on the cross rods (30);

the side, close to the second training mechanism (13), of the back plate (15) is connected with an extension plate (16), the bottom of the extension plate (16) is hinged with a support rod B (29), and a telescopic piece is arranged between the back plate (15) and the bottom plate (11) and used for adjusting the back plate (15) and the extension plate (16) to rotate to the side, close to the second training mechanism (13), around the hinged position of the extension plate (16) and the support rod B (29);

the second training mechanism (13) comprises a crotch supporting pad (33), the bottom of the crotch supporting pad (33) is connected with a fixed frame with adjustable height, and two sides of the extension plate (16) are connected with leg pressing pads (17) matched with the crotch supporting pad (33) for use;

the third training mechanism (14) comprises a leg pressing rod (39) and a pedal (37), one side of the leg pressing rod (39) is connected with a support (40), one end, far away from the leg pressing rod (39), of the support (40) is hinged to a rotating seat, one side, close to the pedal (37), of the leg pressing rod (39) is connected with an elastic telescopic piece, and the elastic telescopic piece is used for controlling the leg pressing rod (39) to reset when rotating around the axis of the rotating seat.

2. The aerobic exercise physical training device of claim 1, wherein: high-order drop-down piece that resets includes tension spring (32), tension spring (32) are connected in the one side of sliding seat (31) and keeping away from first training mechanism (12), and tension spring (32) cover is established on horizontal pole (30), tension spring (32) keep away from the one end connection backplate (15) of sliding seat (31).

3. The aerobic exercise physical training device of claim 2, wherein: one side that two sets of seats (31) of sliding kept away from mutually all is equipped with drop handle, drop handle is close to seat (31) one side of sliding and is equipped with the screw rod with the screw thread fit of seat (31) lateral wall of sliding.

4. The aerobic exercise physical training device of claim 1, wherein: the extensible member is including connecting fixing base (19) at bottom plate (11) top, one side that bottom plate (11) were kept away from in fixing base (19) is rotated and is connected hydraulic telescoping rod (20) that two sets of symmetries set up, backplate (15) bottom is equipped with two sets of mount pads, hydraulic telescoping rod (20) are kept away from the one end rotation connection mount pad of fixing base (19).

5. The aerobic exercise physical training device of claim 1, wherein: the mount is including connecting fixed cover (35) at bottom plate (11) top, bottom plate (11) top is equipped with diagonal brace (36) that are used for supporting fixed cover (35), bottom plate (11) one end sliding connection dead lever (34) are kept away from in fixed cover (35), fixed cover (35) one end pole body joint support board is kept away from in dead lever (34), the backup pad is connected in crotch supporting pad (33) bottom, be equipped with the fixed button that is used for fixed dead lever (34) sliding position on fixed cover (35).

6. The aerobic exercise physical training device of claim 1, wherein: two sets of leg pressing pad (17) symmetry sets up in extension board (16) both sides, and two sets of leg pressing pad (17) connect through linking the pole, be equipped with on extension board (16) and be used for linking the pole and pass and with linking pole sliding fit's shifting chute (18), one side that extension board (16) are close to bottom plate (11) is equipped with the location button that is used for fixed linking pole sliding position in shifting chute (18).

7. The aerobic exercise physical training device of claim 1, wherein: the elastic telescopic piece comprises a limiting block (44) rotatably connected with the support (40) and a sleeve (41) rotatably connected with the bottom plate (11), one side, close to the sleeve (41), of the limiting block (44) is connected with a sliding column (42), the sliding column (42) extends to the inner cavity of the sleeve (41) to be in sliding fit with the sleeve (41), and a spring sleeved on the sliding column (42) is arranged in the inner cavity of the sleeve (41);

a buckling plate (43) used for fixing the limiting block (44) at the end part of the sleeve (41) is hinged to one side of the sleeve (41), a protrusion is connected to the position, far away from the hinged position, of the buckling plate (43), and a groove matched with the protrusion is formed in one side, far away from the sleeve (41), of the limiting block (44); one side of the pedal (37) close to the bracket (40) is connected with a fixed rod (38).

8. The aerobic exercise physical training device of claim 1, wherein: the screw rod adjusting part comprises two groups of screw rods (25) and a group of driving parts (26), the screw rods (25) are installed between two groups of supporting rods A (28), double-shaft motors are arranged in the driving parts (26), output rods (27) are connected with output ends of the double-shaft motors, one ends of the output rods (27) far away from the driving parts (26) are connected with driving bevel gears, one ends of the screw rods (25) close to the driving parts (26) extend to the supporting rods A (28) to be connected with driven bevel gears which are meshed with the driving bevel gears, and the screwing directions of the screw rods (25) are opposite.

9. The aerobic exercise physical training device of claim 8, wherein: arm strength training ware is including removing seat (21) and grabbing board (22), remove seat (21) threaded connection lead screw (25), remove seat (21) top and connect roof (24), roof (24) are close to grabbing board (22) one side and connect two sets of montants (23), it is provided with grabbing board (22) to slide on montant (23), grabbing board (22) top and bottom all are equipped with the spring of cover establishing on montant (23).

10. The aerobic exercise physical training device of claim 9, wherein: the roof (24) is connected with two sets of symmetrical fixing bolts through threads, the bottoms of the two side walls of the sliding seat (31) are connected with limiting plates, and screw holes matched with the fixing bolts through threads are formed in the limiting plates.