CN217489663U - Lumbar spine trainer - Google Patents

Abstract

The utility model discloses a lumbar vertebrae trainer, include: a base; the rotating frame is rotatably arranged on the base through a first rotating shaft, the first rotating shaft is longitudinally arranged, and two parallel guide rods are arranged on the rotating frame; the lifting seat is arranged on the two guide rods in a vertically sliding manner; the middle part of the swinging frame is rotatably arranged on the lifting seat through a second rotating shaft, and the second rotating shaft is transversely arranged; the protection assembly comprises a protection belt and two sets of guide rollers, the guide rollers are arranged from top to bottom and are arranged on the rotating frame, the protection belt is wound on the guide rollers, and two end portions of the protection belt are connected with the lifting seat respectively.

Description

Lumbar spine trainer

Technical Field

The utility model relates to a body-building apparatus especially relates to a lumbar vertebrae trainer.

Background

At present, along with the improvement of living standard of people, people pay more and more attention to their health, and various fitness equipment is developed and marketed. Wherein, to the equipment that the backbone was taken exercise, mainly focus on training the waist, and need reach the purpose of training to the backbone of lumbar vertebrae upper portion, the user also only repeats the action of bowing and increases motion amplitude and realizes. Chinese patent publication No. CN110384893A discloses a lumbar and spinal column rehabilitation training device, which can realize the training of exercisers on lumbar, spinal and cervical vertebrae, and according to the height requirements of different users, the lifting assembly moves up and down to adjust the positions of the components, so as to meet the use requirements of different users. And lifting unit is at the lift in-process, because be hollow out construction between the guide bar, the user stretches into the hand easily and then causes bodily injury. In view of this, how to design an exercise device with high safety in use is a technical problem to be solved by the invention.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the lumbar spine trainer is provided, and improves use safety to improve user experience.

The utility model provides a technical scheme is, one kind 1. a lumbar vertebrae trainer, a serial communication port, include:

a base;

the rotating frame is rotatably arranged on the base through a first rotating shaft, the first rotating shaft is longitudinally arranged, and two parallel guide rods are arranged on the rotating frame;

the lifting seat is arranged on the two guide rods in a vertically sliding manner;

the middle part of the swinging frame is rotatably arranged on the lifting seat through a second rotating shaft, and the second rotating shaft is transversely arranged;

the protection assembly comprises a protection belt and two sets of guide rollers, the guide rollers are arranged from top to bottom and are arranged on the rotating frame, the protection belt is wound on the guide rollers, and two end portions of the protection belt are connected with the lifting seat respectively.

Furthermore, one end of the protective belt is connected to the upper part of the lifting seat, and the other end of the protective belt is connected to the lower part of the lifting seat.

Further, the lifting seat is arranged between the two groups of guide rollers.

Further, the guide roller comprises two sub roller bodies arranged side by side.

Further, the guard band is located between the two guide rods.

Furthermore, a rear protective cover is arranged on the rotating frame and covers the rear part and two side parts of the rotating frame.

Further, still include the mounting bracket, the lower tip setting of mounting bracket is in on the base, be provided with the display screen on the mounting bracket.

Furthermore, the lower part of the mounting rack is also provided with a pedal.

Further, still be provided with the support frame on the mounting bracket, be provided with the spacing roller of shank on the support frame.

Furthermore, the support frame is rotatably arranged on the mounting frame, a pawl is arranged on the support frame, a ratchet wheel is arranged on the mounting frame, and the pawl is clamped on the ratchet wheel.

Compared with the prior art, the utility model discloses an advantage is with positive effect: carry out the auxiliary protection to the lift seat of oscilaltion through increasing protective assembly, the guard band can shelter from two guide bars and be located the fretwork region about the lift seat, like this, at the lift seat lift in-process, the user can not be because of the maloperation with the hand deep into between two guide bars, and then can avoid appearing the lift seat in the lift in-process user stretch into the hand between the guide bar, realize improving safety in utilization in order to improve user experience nature.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic structural view of an embodiment of the lumbar spine trainer of the present invention;

FIG. 2 is a schematic view of a partial structure of an embodiment of the lumbar spine trainer of the invention;

FIG. 3 is a second schematic view of a partial structure of the lumbar vertebrae trainer of the present invention;

FIG. 4 is a cross-sectional view taken along line M-M of FIG. 3;

FIG. 5 is a partial enlarged view of the region N in FIG. 4;

FIG. 6 is an assembly view of the second assisting element and the lifting seat according to the embodiment of the lumbar spine trainer of the present invention;

fig. 7 is a schematic structural view of the second pressing member in the embodiment of the lumbar spine trainer of the present invention.

Reference numerals:

a base 1, a seat 11;

the rotating frame 2, the first rotating shaft 21, the guide rod 22 and the rear shield 23;

a lifting seat 3;

the swing frame 4, the second rotating shaft 41;

the turnover frame 5, a third rotating shaft 51, a backrest 52, a handle 54 and an arm support 55;

a booster assembly 6;

the first power assisting assembly 61, the first elastic restoring member 611, the first pressing member 612, the first swing arm 613 and the first pulley 614;

a first guiding surface 610, a first convex section 6101, a first concave section 6102;

the second power assisting assembly 62, a second elastic reset piece 621, a second pressing piece 622, a second swinging arm 623 and a second pulley 624;

a second guide surface 620, a second convex section 6201, a second concave section 6202;

the third power-assisted assembly 63, the connecting frame 631 and the third elastic reset piece 632;

a protective assembly 7, a protective belt 71, a guide roller 72 and a sub roller body 721.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-7, the lumbar spine trainer of the present embodiment comprises: the device comprises a base 1, a rotating frame 2, a lifting seat 3, a swing frame 4 and a roll-over frame 5.

The base 1 is located at the bottom supporting part of the whole device, and in practical use, the base 1 is placed on the floor of a room, and in order to facilitate the body-building use of a user, the base 1 is also provided with a seat 11. Wherein, according to the body-building requirement of the user, at least one revolute pair can be configured for the rotary mode, and the specific setting of the revolute pair can adopt the following form:

the lumbar spine trainer can be configured with a first rotating pair, the rotating frame 2 can be rotatably arranged on the base 1 through a first rotating shaft 21, the first rotating shaft 21 is longitudinally arranged, the first rotating shaft 21 forms the first rotating pair, and the horizontal rotation and waist twisting exercise of a user can be realized through the first rotating shaft 21 forming the first rotating pair;

the lumbar spine trainer can be provided with a second rotating pair, the middle part of the swing frame 4 is rotatably arranged on the lifting seat 3 through a second rotating shaft 41, the second rotating shaft 41 is transversely arranged, the second rotating shaft 41 forms the second rotating pair, and the second rotating pair formed through the second rotating shaft 41 can realize the left-right shaking and waist twisting exercise of a user;

the lumbar spine trainer can be provided with a third rotating pair, two end parts of the roll-over stand 5 are respectively and rotatably arranged on the swing frame 4 through a third rotating shaft 51, the third rotating shaft 51 forms the third rotating pair, and the third rotating pair formed through the third rotating shaft 51 can realize the front and back bending exercise of a user. Wherein, the roll-over stand 5 is provided with a backrest 52, so that the user can conveniently lean the back against the backrest 52.

For the lumbar spine trainer, at least one rotation pair can be configured according to the fitness needs of the user to meet the exercise requirements, and the number of the rotation pairs configured for the lumbar spine trainer is not limited herein.

In addition, in order to install the lifting seat 3, the rotating frame 2 is provided with a guide rod 22, the guide rod 22 is vertically arranged, the lifting seat 3 is provided with a jack, and the guide rod 22 is inserted into the jack, so that the lifting seat 3 can slide up and down along the guide rod 22. The power for the lifting seat 3 to slide up and down comes from the driving device, the driving device can drive the lifting seat 3 to move up and down by adopting a screw rod mode, the driving device can adopt a structural form for driving the lifting seat 3 to move in the conventional technology, and the specific structural form of the driving device is not limited or described in detail.

Meanwhile, in order to meet the requirement of exercise, a resistor is arranged for each revolute pair, resistance is provided by the resistor to achieve body building exercise of a user, and the resistor can generate large resistance to the resetting of the revolute pairs. In order to enable the revolute pair to accurately and effectively reset, a power assisting component 6 can be arranged in the lumbar spine trainer corresponding to the revolute pair needing accurate resetting, and the power assisting component 6 can provide assisting force for the revolute pair so that the revolute pair can accurately reset under the assistance of the assisting force, so that the user experience is good.

In the first embodiment, since the lifting seat 3 slides up and down along the two guide rods 22, and the connection between the second rotating shaft 41 and the corresponding resistance device is arranged behind the guide rods 22, a user can easily extend his/her hands between the two guide rods 22 due to misoperation during the exercise process, thereby causing personal injury.

In order to improve the use safety of the lumbar spine trainer, the upper and lower areas of the lifting seat 3 need to be protected, for this reason, the lumbar spine trainer further comprises a protection component 7, the protection component 7 comprises a protection belt 71 and two groups of guide rollers 72, the two groups of guide rollers 72 are arranged up and down and are arranged on the rotating frame 2, the protection belt 71 is wound on the two groups of guide rollers 72, and two end parts of the protection belt 71 are respectively connected with the lifting seat 3.

Specifically, the upper portion and the lower portion of the guide rods 22 are respectively provided with a guide roller 72, and in the process that the lifting seat 3 moves up and down along the guide rods 22, the protective belt 71 always effectively shields the area between the guide rods 22, which is located at the upper position and the lower position of the lifting seat 3, so as to prevent a user from extending a hand between the two guide rods 22, and further effectively improve the use safety and reliability.

Wherein, in the using and mounting process, one end part of the protective belt 71 is connected with the upper part of the lifting seat 3, and the other end part of the protective belt 71 is connected with the lower part of the lifting seat 3; the guard belt 71 is located between the two guide bars 22. In addition, the lifting seat 3 is arranged between the two sets of guide rollers 72 to achieve a compact installation requirement in terms of structure.

Further, the guide roller 72 includes two sub roller bodies 721 arranged side by side.

Specifically, in order to avoid interference between the guard band 71 and other components placed between the two guide rods 22, for the two sets of guide rollers 72 arranged up and down, each set of guide roller 72 is configured with two sub roller bodies 721, and under the action of the upper and lower four sub roller bodies 721, the guard band 71 and the lifting seat 3 form a type annular structure, so that the guard band 71 can avoid the components between the two guide rods 22, thereby improving the use reliability.

Furthermore, in order to improve the safety of the use more effectively, the rotating frame 2 is further provided with a rear shield 23, and the rear shield 23 covers the rear part and both side parts of the rotating frame 2.

Specifically, the rear shield 23 can shield the rear part and the two sides of the rotating frame 2, so that the use safety can be improved on one hand, and the overall appearance effect can be effectively improved through the rear shield 23 on the other hand.

Carry out the auxiliary protection to the lift seat of oscilaltion through increasing protective assembly, the guard band can shelter from two guide bars and be located the fretwork region about the lift seat, like this, at the lift seat lift in-process, the user can not be because of the maloperation with the hand deep into between two guide bars, and then can avoid appearing the lift seat in the lift in-process user stretch into the hand between the guide bar, realize improving safety in utilization in order to improve user experience nature.

In the second embodiment, in order to enable the rotating frame 2 to effectively and accurately reset when the lumbar spine trainer is configured with the first rotating pair, the lumbar spine trainer further includes the first power assisting assembly 61, the first power assisting assembly 61 includes the first elastic resetting member 611 and the first pressing member 612, the first pressing member 612 is disposed on the first rotating shaft 21 and can rotate along with the first rotating shaft 21, and the first elastic resetting member 611 is disposed between the base 1 and the first pressing member 612 and is used for applying a resetting force to the first pressing member 612.

Specifically, the user will drive the rotating frame 2 to rotate back and forth when twisting waist and taking exercise, and the rotating frame 2 in the rotating process will be resisted by the resistance that the strength device produced and then play the effect of taking exercise. Meanwhile, the rotating turret 2 is also subjected to the elastic force transmitted by the first elastic resetting piece 611 through the first pressing piece 612, so that when the user exercises the resetting turret 2, the resetting force generated by the first elastic resetting piece 611 can enable the turret 2 to reset more accurately. On the one hand, the lumbar spine trainer can be conveniently reset by a former exerciser after the exerciser exercises, on the other hand, the lumbar spine trainer can be trained on the posterior exerciser in a correct posture, and therefore the user experience is integrally improved.

In order to facilitate installation of the first power assisting assembly 61, the rotating frame 2 is integrally in an L-shaped structure, and the first rotating shaft 21 is arranged at the lower end of the rotating frame 2; the first presser 612 is located between the turret 2 and the base.

Specifically, the bottom of the turret 2 is mounted on the base 1 through the first rotating shaft 21, and a space between the turret 2 and the base 1 is used for mounting the first power assist assembly 61. The first pressing member 612 of the first power assisting assembly 61 is mounted on the first rotating shaft 21 and located below the rotating frame 2, and the first elastic resetting member 611 is simultaneously mounted between the rotating frame 2 and the base 1, so that the space between the rotating frame 2 and the base 1 is fully utilized to mount the first power assisting assembly 61.

Further, for the first power assisting assembly 61, in order to apply the elastic restoring force to the first rotating shaft 21 through the first elastic restoring member 611 conveniently, the first power assisting assembly 61 further includes a first swing arm 613 and a first pulley 614, an end of the first swing arm 613 is rotatably disposed on the base 1, the first swing arm 613 is connected to the first elastic restoring member 611, the first pulley 614 is rotatably disposed on the first swing arm 613, and the first pulley 614 abuts against the first pressing member 612.

Specifically, the elastic force generated by the first elastic restoring member 611 is directly applied to the first swing arm 613, and the first swing arm 613 further transmits the elastic force to the first pressing member through the first pulley 614. In addition, since the first pulley 614 is in contact with the first pressing member, the first pressing member can guide via the first pulley 614 to reversely apply a force to the first elastic returning member 611 during the first rotational process, and the first pulley 614 can ensure that the first pressing member follows the first rotational shaft 21 to rotate smoothly.

Preferably, as the rotation angle of the first rotating shaft 21 increases, in order to reduce the influence of excessive elastic force generated on the first elastic reset device on the user's fitness, the first pressing member 612 may be provided with a first guide surface 610, the first pulley 614 abuts against the first guide surface 610, and the first guide surface 610 is a curved structure.

Specifically, since the first guide surface 610 is a curved surface structure, in the process of rolling the first pulley 614 along the first guide surface 610, as the angle of the first rotating shaft 21 after rotating from the initial position increases, the rate of change of the displacement generated when the first guide surface 610 pushes the first pulley 614 gradually decreases. That is, when the first rotating shaft 21 starts to rotate from the initial position, the first pressing component will push the first pulley 614 to rotate the first swing arm 613, and at the same time, generate a corresponding elastic variable for the first elastic restoring member 611. As the rotation angle of the first rotating shaft 21 increases, the tendency of the first pressing member to push the first pulley 614 to rotate the first oscillating arm 613 is gradually reduced under the action of the curved structure of the first guiding surface 610.

Since the elastic force generated by the first elastic reset member 611 is in direct proportion to the deformation thereof, and the increasing trend of the elastic force generated by the first elastic reset member 611 is gradually decreased along with the increase of the rotation angle of the first rotating shaft 21, it can be avoided that the larger elastic force of the first elastic reset member needs to be overcome when the first rotating shaft 21 rotates at a larger angle, so as to reduce the resistance influence of the first elastic reset member on the user during exercise. Therefore, the force applied by the user is uniform in the body building process of the user, and a good body building effect is achieved.

Further, since the first rotating shaft 21 rotates in the forward and reverse directions, the first pressing member 612 is provided with the first guide surfaces 610 which are symmetrically arranged. Specifically, in the rotating process of the first rotating shaft 21, the first guiding surface 610 configured in the corresponding rotating direction is used to apply an acting force to the first power assisting assembly 61, so that the first elastic restoring component generates elastic deformation, so as to ensure the elastic force requirement when restoring in different rotating directions.

Still further, as to the specific structure form of the first guiding surface 610, various curved surface structures can be implemented, for example: along the extending direction of the corresponding end of the first pressing member 612, the first guide surface 610 sequentially has a first convex section 6101 and a first concave section 6102. Specifically, in the reset state of the first rotating shaft 21, the first pulley 614 is located at the starting point of the first convex section 6101, and as the first rotating shaft 21 rotates, the first pulley 614 extends the first convex section 6101 to move, so that the first elastic reset member 611 is stressed to be elastically deformed, and as the rotation angle of the first rotating shaft 21 increases, the first pulley 614 slides to the first concave section 6102, and when the first pulley 614 slides on the first concave section 6102, the amount of the continuous deformation of the first elastic reset member 611 becomes smaller or does not further deform, so as to ensure that the elastic force applied by the first elastic reset member 611 to the first rotating shaft 21 is not too large, which may affect the user's body-building experience. The protruding section and/or the recessed section are arc-shaped surfaces, and the arc-shaped surfaces can be matched with the first pulley 614 to realize smooth sliding.

A first positioning groove (not marked) is formed at a connection portion of the two first guide portions, and after the first rotating shaft 21 is reset, the first pulley 614 is located in the first positioning groove, so that the first pulley 614 is positioned, and the reset of the first rotating shaft 21 is ensured to accurately maintain a stable state.

In addition, during the actual use, the representation entity of the first elastic restoring member 611 may adopt a conventional elastic component, for example: the first elastic restoring member 611 is a spring, and the spring is connected to the other end of the first oscillating arm 613. Or, the first elastic resetting member 611 is a torsion spring, the torsion spring is sleeved on the rotating shaft of the first oscillating arm 613, one end of the torsion spring is connected to the base, and one end of the torsion spring is connected to the first oscillating arm 613.

Through dispose first helping hand subassembly on the base, first helping hand subassembly can reset the piece through first elasticity and provide the power that resets for the rotating turret at the rotating turret rotation in-process, the elasticity that first elasticity reset the piece and produce is transmitted for first pivot through first pressure, and then when the user trains, reset the piece through first elasticity and can produce the power that resets to first pivot, and after having tempered, make the rotating turret can accurate the resetting more easily under the effect that first elasticity reset the piece, it leads to the user injury to reduce to make the oscillating turret can not accurate reset because of the resistor influence, the exercise effect has been optimized and user experience nature has been improved.

In the third embodiment, in order to enable the swing frame 4 to effectively and accurately reset when the lumbar spine trainer is configured with the second revolute pair, the lumbar spine trainer further includes the second power assisting assembly 62, the second power assisting assembly 62 includes the second elastic resetting piece 621 and the second pressing piece 622, the second pressing piece 622 is disposed on the second rotating shaft 41 and can rotate along with the second rotating shaft 41, and the second elastic resetting piece 621 is disposed between the lifting seat 3 and the second pressing piece 622 and is used for applying a resetting force to the second pressing piece 622.

Specifically, the user will drive the roll-over stand 5 to rotate back and forth left and right when rocking and twisting waist exercise about carrying out, and the roll-over stand 5 of rotation in-process will be followed the resistance that the strength resistance produced and then played the effect of taking exercise. Meanwhile, the turning frame 5 after rotation is also simultaneously subjected to the elastic force transmitted by the second elastic resetting piece 621 through the second pressing piece 622, so that when the user exercises the turning frame 5 after resetting, the user can reset the turning frame 5 more accurately by means of the resetting force generated by the second elastic resetting piece 621. On the one hand, the lumbar spine trainer can be conveniently reset by a former exerciser after the exerciser exercises, on the other hand, the lumbar spine trainer can be trained on the posterior exerciser in a correct posture, and therefore the user experience is integrally improved.

Two parallel guide rods 22 are configured on the rotating frame 2, and the shaft hole for mounting the second rotating shaft 41 on the lifting seat 3 can be arranged in the middle, and the second rotating shaft 41 passes through the shaft hole on the lifting seat 3 so that the swinging frame 4 is mounted on the lifting seat 3. The damper may be installed at one side of the lifting base 3, and the second rotating shaft 41 extends toward the rear of the lifting base 3 and is connected to the damper by means of a transmission chain or a transmission belt.

Further, for the second power assisting assembly 62, in order to conveniently apply the elastic restoring force to the second rotating shaft 41 through the second elastic restoring member 621, the second power assisting assembly 62 further includes a second swing arm 623 and a second pulley 624, one end of the second swing arm 623 is rotatably disposed on the base 1, the second swing arm 623 is connected to the second elastic restoring member 621, the second pulley 624 is rotatably disposed on the second swing arm 623, and the second pulley 624 abuts against the second pressing member 622.

Specifically, the elastic force generated by the second elastic restoring member 621 is directly applied to the second swing arm 623, and the second swing arm 623 further transmits the elastic force to the second pressing member through the second pulley 624. In addition, since the second pulley 624 is in contact with the second pressing member, the second pressing member can guide via the second pulley 624 to reversely apply a force to the second elastic restoring member 621 during the second rotational rotation, and the second pulley 624 can ensure that the second pressing member follows the second rotational shaft 41 to rotate smoothly.

Preferably, as the rotation angle of the second rotating shaft 41 increases, in order to reduce the influence of the excessive elastic force generated by the second elastic restoring member on the user's fitness, a second guiding surface 620 may be provided on the second pressing member 622, and the second pulley 624 abuts against the second guiding surface, where the second guiding surface is a curved surface structure.

Specifically, since the second guiding surface is a curved surface structure, in the process that the second pulley 624 rolls along the second guiding surface, as the angle of the second rotating shaft 41 after rotating from the initial position increases, the rate of change of displacement generated when the second pulley 624 is pushed by the second guiding surface decreases gradually. That is, when the second rotating shaft 41 starts to rotate from the initial position, the second pressing member will simultaneously push the second pulley 624 to rotate the second swing arm 623, and at the same time, generate a corresponding elastic variable for the second elastic restoring element 621. As the rotation angle of the second rotating shaft 41 increases, under the action of the curved structure of the second guiding surface, the tendency that the second pressing member pushes the second pulley 624 to rotate the second oscillating arm 623 decreases gradually.

And because the elastic force generated by the second elastic reset piece 621 is in direct proportion to the deformation amount thereof, along with the increase of the rotation angle of the second rotating shaft 41, the increasing trend of the elastic force generated by the second elastic reset piece 621 gradually decreases, so that it can be avoided that when the second rotating shaft 41 rotates at a larger angle, the larger elastic force of the second elastic reset piece needs to be overcome, so as to reduce the resistance influence of the second elastic reset piece on the user body building. Therefore, the force applied by the user is uniform in the body building process of the user, and a good body building effect is achieved.

Further, since the second rotating shaft 41 rotates in the forward and reverse directions, the second pressing member 622 is provided with the second guide surfaces which are symmetrically arranged. Specifically, in the rotation process of the second rotating shaft 41, the second assisting assembly 62 is acted by the second guiding surface configured in the corresponding rotation direction, so that the second elastic resetting component generates elastic deformation, and the requirement of elastic force during resetting in different rotation directions is ensured.

Still further, for the specific structural form of the second guiding surface, various curved surface structures can be realized, such as: the second guide surface has a second convex section 6201 and a second concave section 6202 along the extending direction of the corresponding end of the second pressing member 622. Specifically, in the reset state of the second rotating shaft 41, the second pulley 624 is located at the starting point of the second protruding section 6201, and as the second rotating shaft 41 rotates, the second pulley 624 extends the second protruding section 6201 to move, so that the second elastic reset piece 621 is stressed to generate elastic deformation, and as the rotation angle of the second rotating shaft 41 increases, the second pulley 624 slides to the second recessed section 6202, and when the second pulley 624 slides on the second recessed section 6202, the amount of continuous deformation of the second elastic reset piece 621 becomes smaller or does not generate further deformation, so as to ensure that the elastic force applied by the second elastic reset piece 621 to the second rotating shaft 41 is not too large, which may affect the user's exercise experience. The protruding section and/or the recessed section are arc-shaped surfaces, and the arc-shaped surfaces can be matched with the second pulleys 624 to realize smooth sliding.

A second positioning groove (not marked) is formed at the connection position of the two second guiding portions, and after the second rotating shaft 41 is reset, the second pulley 624 is located in the second positioning groove, so that the second pulley 624 is positioned, and the reset of the second rotating shaft 41 is ensured to accurately maintain a stable state.

In addition, in actual use, a conventional elastic component may be used for the expression entity of the second elastic restoring member 621, for example: the second elastic restoring member 621 is a spring connected to the other end portion of the second swing arm 623. Or, the second elastic restoring element 621 is a torsion spring, the torsion spring is sleeved on the rotating shaft of the second swing arm 623, one end of the torsion spring is connected to the base, and one end of the torsion spring is connected to the second swing arm 623.

Through dispose second helping hand subassembly on the seat that goes up and down, the second helping hand subassembly can reset the piece through the second elasticity and provide the power that resets for the swing span in the swing span swing in-process, the elasticity that the piece produced that resets of second elasticity is pressed through the second and is moved the piece and transmit for the second pivot, and then when the user trains, reset the piece through the second elasticity and can produce the power that resets to the second pivot, and after having tempered, make the swing span can more accurate the reseing easily under the effect that the piece reset at the second elasticity, it leads to the user injury to reduce to make the swing span can not accurate reset because of the resistor influence, the exercise effect has been optimized and user experience nature has been improved.

In the fourth embodiment, in order to enable the roll-over stand 5 to be effectively and accurately reset when the lumbar spine trainer is configured with the third revolute pair, the lumbar spine trainer further includes a third power assisting assembly 63, the third power assisting assembly 63 includes a connecting frame 631 and two third elastic resetting members 632, the connecting frame 631 is disposed on the third rotating shaft 51, the third elastic resetting members 632 are disposed between the swing frame 4 and the connecting frame 631, and the two third elastic resetting members 632 are distributed on two sides of the third rotating shaft 51.

Specifically, to third pivot 51, it can satisfy the exercise requirement that the user stood back and forth, and the user will drive roll-over stand 5 fore-and-aft direction in the exercise process and rotate, and roll-over stand 5 that rotates the in-process will receive the resistance that the corresponding resistance ware produced and then play the effect of tempering. Meanwhile, the turning frame 5 after rotating is also simultaneously subjected to the elastic force transmitted by the third elastic resetting piece 632 through the connecting frame 631, so that when the user exercises the turning frame 5 after resetting, the user can reset the turning frame 5 more accurately by means of the resetting force generated by the third elastic resetting piece 632.

In addition, through configuring two third elastic reset pieces 632, the requirement of the turning frame 5 on rotation in the front-back direction can be better met, and then the turning frame 5 can be reset accurately.

Based on the first to fourth embodiments, optionally, in order to facilitate the user to exercise, after the height of the lifting seat 3 is adjusted, the opening and closing state of the arm of the user also changes, in order to meet the requirement that the arm of the user obtains good support, arm supports 55 are respectively arranged at two end portions of the roll-over stand 5, and the arm supports 55 are rotatably arranged on the roll-over stand 5.

Specifically, the arm support 55 is rotatably mounted on the roll-over stand 5, after the user places the arm on the arm support 55, the posture of the arm of the user changes along with the adjustment of the height of the lifting seat 3, and the arm support 55 can be rotated to adapt to the posture of the arm of the user well, so as to ensure that the arm is supported well.

Wherein the front end of the arm support 55 is rotatably provided on the roll-over stand 5. Specifically, the front end of the arm support 55 is mounted on the roll-over stand 5 through a shaft, so that the arm support 55 can have a large rotation range to meet the requirement of the user for adjusting the posture of the arm.

A handle 54 may be further provided at the tip of the arm rest 55. Specifically, the user can also hold the front handle 54 during the exercise process, so as to better control the angle and amplitude of the exercise, thereby improving the exercise effect.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A lumbar spine trainer, comprising:

a base;

the rotating frame is rotatably arranged on the base through a first rotating shaft, the first rotating shaft is longitudinally arranged, and two parallel guide rods are arranged on the rotating frame;

the lifting seat is arranged on the two guide rods in a vertically sliding manner;

the middle part of the swinging frame is rotatably arranged on the lifting seat through a second rotating shaft, and the second rotating shaft is transversely arranged;

the protection assembly comprises a protection belt and two sets of guide rollers, the guide rollers are arranged from top to bottom and are arranged on the rotating frame, the protection belt is wound on the guide rollers, and two end portions of the protection belt are connected with the lifting seat respectively.

2. The lumbar spine trainer as set forth in claim 1, wherein one end of the guard band is connected to an upper portion of the elevating base, and the other end of the guard band is connected to a lower portion of the elevating base.

3. The lumbar spine trainer as set forth in claim 1 wherein the elevator car is disposed between two sets of the guide rollers.

4. The lumbar spine trainer as set forth in claim 3 wherein the guide roller comprises two sub-roller bodies arranged side-by-side.

5. The lumbar spine trainer as set forth in claim 1 wherein said guard band is located between two of said guide rods.

6. The lumbar spine trainer as claimed in claim 1, wherein the turret is further provided with a rear shield which covers the rear and both side portions of the turret.

7. The lumbar spine trainer as claimed in any one of claims 1 to 6 further comprising a mounting bracket, the lower end of the mounting bracket being disposed on the base, the mounting bracket being provided with a display screen.

8. The lumbar spine trainer as set forth in claim 7, wherein the lower portion of the mounting bracket is further provided with a foot rest.

9. The lumbar spine trainer as claimed in claim 7, wherein the mounting bracket is further provided with a support frame, and the support frame is provided with a leg limiting roller.

10. The lumbar spine trainer as claimed in claim 9, wherein the support frame is rotatably disposed on the mounting frame, the support frame is provided with a pawl, the mounting frame is provided with a ratchet wheel, and the pawl is clamped on the ratchet wheel.

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