CN106580630B - Sitting posture correcting spine massage chair - Google Patents

Sitting posture correcting spine massage chair Download PDF

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Publication number
CN106580630B
CN106580630B CN201611263776.8A CN201611263776A CN106580630B CN 106580630 B CN106580630 B CN 106580630B CN 201611263776 A CN201611263776 A CN 201611263776A CN 106580630 B CN106580630 B CN 106580630B
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rotating wheel
traction
spine
wheel mechanism
rotating
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CN106580630A (en
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程光
李迪
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Beijing Union University
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Beijing Union University
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H1/00Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
    • A61H1/008Apparatus for applying pressure or blows almost perpendicular to the body or limb axis, e.g. chiropractic devices for repositioning vertebrae, correcting deformation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H1/00Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
    • A61H1/02Stretching or bending or torsioning apparatus for exercising
    • A61H1/0292Stretching or bending or torsioning apparatus for exercising for the spinal column
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/01Constructive details
    • A61H2201/0119Support for the device
    • A61H2201/0138Support for the device incorporated in furniture
    • A61H2201/0149Seat or chair
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2205/00Devices for specific parts of the body
    • A61H2205/08Trunk
    • A61H2205/081Back

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Massaging Devices (AREA)

Abstract

The utility model relates to a sitting posture correcting spine massage chair, which comprises a backrest (1), wherein a mounting base (8) is fixedly arranged on the backrest (1), two groups of rotating wheel mechanisms are symmetrically arranged on the two sides of the central axis of the mounting base (8) and correspond to the upper and lower positions of the two sides around the human spine, each group of rotating wheel mechanisms comprises a first rotating wheel mechanism (3), a second rotating wheel mechanism (4), a third rotating wheel mechanism (5) and a fourth rotating wheel mechanism (6), a traction mechanism mounting support (22) is fixedly arranged at the top of the backrest (1), and a traction mechanism (7) is arranged on the traction mechanism mounting support (22). Compared with the prior art, the utility model has the beneficial effects that: the optimal effect on scoliosis correction is realized through the combined load of axial traction and transverse stretching generated by two groups of rotating wheel mechanisms which are symmetrically arranged; the function of stretching the spine is realized by arranging the axial traction force generated by the traction mechanism; the rotating wheel mechanism can indirectly increase traction force so as to increase comfort of the human body positive ridge.

Description

Sitting posture correcting spine massage chair
Technical Field
The utility model relates to a massage chair, in particular to a sitting posture correcting spine massage chair.
Background
Scoliosis is a spinal deformity with a high incidence of scoliosis, including scoliosis caused by sequence abnormalities in the coronal, sagittal, and axial positions. There are various causes of scoliosis, including structural scoliosis (e.g., idiopathic, congenital, neuromuscular, etc.) and non-structural scoliosis (e.g., postural scoliosis, hysterical scoliosis, etc.). Scoliosis has a great influence on respiratory system, functions of internal organs, trunk morphology and the like. Treatment of scoliosis is divided into surgical and non-surgical treatments. Because of the complex etiology of scoliosis, the treatment means need to be considered from the aspects of the characteristics of scoliosis, the age of the patient, the development of bone age and the like. Three-dimensional orthopedic techniques and pedicle screw fixation techniques are the more common surgical treatment, but their safety remains a number of issues. Non-operative treatment, i.e. conservative treatment methods, are common among suspension exercises, orthopedic gymnastics, braces and physiotherapy. In order to obtain the characteristics of scoliosis, a mechanism research is developed on the aspect of the mechanical characteristics of scoliosis. B Zhang, DM Sun, JM Xie et al used finite element analysis software to simulate scoliosis by applying a load, analyzing the effect of lateral forces on scoliosis and pelvic tilt while Cobb angle remained unchanged. Wang Xuesong et al have used finite element software to create a three-dimensional finite element model of scoliosis, which simulates the characteristics of scoliosis. Yang Yonghong et al set up a scoliosis three-dimensional finite element model, calculated the stress distribution of the spinal activity, intervertebral discs, vertebral bodies and other parts, and analyzed the mechanical characteristics of degenerative scoliosis. Wei Jianxin A scoliosis finite element model after the semi-vertebral body is resected is established, and biomechanical influence of the transverse connection device on the posterior of the spine is analyzed. In order to correct and recover scoliosis, sun Shoulin and Zhu Linjian design a traction orthosis for scoliosis, which is connected between the waist and the shoulders by a multi-section bearing frame, and when the multi-section bearing frame is pressed, the spine is caused to bend to the convex side for correcting. Xu Ziyin A spinal rehabilitation bed is designed for the old, and the back lifting function of the rehabilitation bed swings and rotates the spinal column, so that the mobility and flexibility of each joint of the spinal column are enhanced. Zhang Hongzhu A device for treating the compression fracture of thoracic vertebrae and correcting the scoliosis is disclosed, which uses a traction cylinder to push a thrust plate to carry out traction treatment on the scoliosis of patients. Ren Hailong and Wang Jixing are directed to a scoliosis corrector in which the curved guide posts can generate elastic forces that return to a linear shape and thereby apply corrective forces to the spine to assist in the correction of the spine in the teenagers during their development. Liang Hanji the utility model discloses a vertebra rehabilitation traction mechanism, which adopts a nut screw device as motion transformation to realize tension output and vertebra traction correction. The prior orthopedic equipment for scoliosis mainly carries out physiotherapy in physical modes such as pressing or hammering, has limited effect on correcting scoliosis, and has unclear long-term effect. Scoliosis is a common disease with great harm, and no physical therapy device has a prevention effect on the scoliosis at present. The massage mechanisms of the massage chairs in the market at present mostly consist of pulley structures, the force application modes to the spine are generally axial or radial, and the motion tracks of the structures can not well prevent or correct the micro-deformation of the spine.
The Chinese patent of utility model with patent number ZL02123544.9 discloses a head, back and foot massager driven by a massager. The massage person sits on the massage chair, the back and the hindbrain spoons lean against the rollers, the hands and the feet (the shoes are taken off and the massage casters are stepped on) alternately drive the four-component rod mechanism behind the massage person, the compound lever mechanism and the back roller group on the massage person, and the back of the massage person is massaged in a rolling way up and down; the floating cervical vertebra roller set which is driven by elastic force and consists of a lever mechanism is driven to flexibly massage the acupoints on two sides of the cervical vertebra and hindbrain spoon of the masseur; each back roller can be horizontally moved and adjusted, the cervical vertebra roller group and the back roller group can be respectively moved and adjusted up and down, and the length of the rope can be manually and rapidly adjusted. However, the utility model still carries out physiotherapy in a pressing physical mode, has limited effect on scoliosis correction, and is not provided with a traction mechanism, so that the technical effect of correcting the spine cannot be realized, and needs to be improved.
The Chinese patent No. ZL201120276322.0 discloses a massage chair capable of massaging the thigh from the head and simulating the zero gravity state, which is provided with a seat frame, a seat rest part, an armrest, an electric push rod of the seat rest part, a walking massage machine core and a control circuit; the sitting and leaning part comprises a backrest part and a sitting position part, the sitting and leaning part is provided with a shell and a guide rail frame, the guide rail frame is arranged in the shell, the length and the shape of the guide rail frame are similar to the shape of a natural curve from the head to the thigh when a human body sits, and the guide rail frame is rotationally connected with the seat frame; the bottom end of the electric push rod of the seat rest is connected with the seat frame, and the output end of the electric push rod of the seat rest is hinged with the bottom of the guide rail frame; the walking type massage machine core is arranged in the shell of the backrest frame, and the walking wheels of the walking type massage machine core are in rolling fit with the guide rails of the guide rail frame; the control circuit is arranged on the seat frame. The best effect of massage from the head to the thigh and zero gravity massage can be achieved. Simple structure, the connecting piece is few, reducible preparation and assembly error, reliable operation, convenient operation. However, the utility model still carries out physiotherapy in a pressing physical mode, has limited effect on scoliosis correction, and cannot realize the technical effect of correcting the spine without a traction mechanism, so that improvement is needed.
The utility model patent No. ZL201210309532.4 discloses a massage chair movement massage structure, including core skeleton and core, set up the recess in the core skeleton, the core sets up in the recess, and both sides are articulated respectively about the core surface have the massage arm, and the massage arm includes with the articulated support arm of core surface, fixed the iron massage ball cover that sets up in the support arm both ends and overlap joint on the massage ball cover, the inwards sunken hemisphere recess that has in massage ball cover surface, hemisphere recess and massage ball surface cooperation are provided with strong magnet in the massage ball, and the massage ball is connected with the hemisphere recess surface adsorption of massage ball cover through strong magnet. According to the utility model, through the structural arrangement of the massage ball, random rolling in any different angle directions can be realized, the massage comfort is ensured, and the massage effect is improved. However, because the massage ball of the utility model rolls randomly, the massage ball is still subjected to physical therapy in a pressing physical mode, the effect on correcting scoliosis is limited, a traction mechanism is not arranged, the technical effect of correcting the spine cannot be achieved, and improvement is needed.
The utility model patent number ZL201210469981.5 Chinese patent discloses a hydraulic body-building massage chair, comprising a chair seat support, a chair back support, a pedal, a driving large sprocket, a hydraulic pump, a hydraulic motor, a gear box and a back massage disk, wherein the chassis of the chair seat support is provided with the driving large sprocket connected with the pedal, the driving large sprocket is connected with a driven sprocket with a one-way overrunning clutch through a chain, the driven sprocket is connected with the hydraulic pump, the hydraulic pump is connected with the hydraulic motor arranged in the gear box at the back through an oil pipe, the hydraulic motor drives more than 1 gear to be connected with the back massage disk on the back through a gear shaft, and the back massage disk is provided with a plurality of massage wheels; the pedal is provided with a massage wheel. The utility model can massage the fatigue part of the body while realizing indoor body building so as to achieve the effect of achieving two purposes at one time; the energy-saving and environment-friendly type electric vehicle has the advantages of energy conservation, environment friendliness, simplicity in operation, no need of electric drive, low cost, small occupied area, easiness in movement and the like. The back massage device is characterized in that the gears 24 are driven to move by the rotation of the hydraulic motor 22 to drive a group of back massage discs 5 arranged in the middle of the back to rotate, so that back massage is realized. Obviously, the effect of the device on scoliosis correction is limited, a traction mechanism is not arranged, the technical effect of correcting the spine cannot be achieved, and improvement is needed.
Disclosure of Invention
In order to solve the technical defects of the prior massage armchair, the utility model takes biomechanical characteristics of scoliosis as the basis, obtains the conclusion that the combined load of axial traction and transverse stretching has the best correcting effect on the scoliosis from the analysis of the static stress of the spine, and provides the massage armchair with the function of correcting the scoliosis aiming at adult population with the deformation trend of the spine and the micro-deformation of the spine, and the specific technical scheme is as follows:
the utility model provides a sitting posture is right spine massage armchair, includes the back, set firmly the installation base on the back the axis both sides of installation base and respectively the symmetry is provided with two sets of runner mechanisms corresponding to the upper and lower position of both sides around human backbone, two sets of runner mechanisms include first runner mechanism, second runner mechanism, third runner mechanism and fourth runner mechanism the traction mechanism erection support has set firmly at the top of back, be equipped with traction mechanism on the traction mechanism erection support.
Preferably, the mounting base is symmetrically provided with two groups of mounting holes along the upper and lower positions of the two sides of the central axis, and the two groups of mounting holes are respectively a first rotating wheel mechanism mounting hole, a second rotating wheel mechanism mounting hole, a third rotating wheel mechanism mounting hole and a fourth rotating wheel mechanism mounting hole.
In any of the above schemes, preferably, the rotating wheel mechanism comprises a rotating bracket of the rotating wheel mechanism, one end of the rotating bracket of the rotating wheel mechanism is connected with the motor, the other end of the rotating bracket of the rotating wheel mechanism is provided with a three-jaw bracket, three ball supports are arranged on the three-jaw bracket, the ball supports are provided with concave grooves, ball rotating shafts are arranged in the concave grooves, and balls are sleeved on the ball rotating shafts.
In any of the above schemes, preferably, the traction mechanism comprises a control end, one end of the control end is connected with the traction mechanism mounting support, and the other end is provided with a traction belt bracket.
In any of the above aspects, preferably, the traction mechanism includes a traction belt, two ends of the traction belt are respectively connected with the traction belt bracket, and the traction belt is suspended at a position right below the traction belt bracket.
In any of the above aspects, preferably, a chin strap is disposed in the middle of the traction strap.
In any of the above aspects, it is preferable to include an armrest.
In any of the above schemes, preferably, the traction mechanism adopts a cervical vertebra tractor with tension.
In any of the above aspects, preferably, the traction mechanism is a portable cervical vertebra tractor.
In any of the above aspects, preferably, the traction mechanism is a mechanical cervical vertebra tractor.
In any of the above aspects, preferably, the traction mechanism is an inflatable traction device.
Compared with the prior art, the utility model has the beneficial effects that: on one hand, the utility model realizes the best effect on correcting scoliosis by the combined load of axial traction and transverse stretching generated by two groups of rotating wheel mechanisms which are symmetrically arranged at the upper and lower positions corresponding to the two sides around the human spine; on the other hand, the utility model realizes the function of stretching the spine by arranging the axial traction force generated by the traction mechanism; meanwhile, the rotating wheel mechanism not only provides transverse force and longitudinal force, but also indirectly increases traction force so as to increase comfort of a human body in the sitting posture ridge correcting process.
Drawings
FIG. 1 is a perspective view of a preferred embodiment of a sitting and ridging massage chair in accordance with the present utility model;
FIG. 2 is a front view of the embodiment of the sitting and ridging massage chair of FIG. 1, in accordance with the present utility model;
FIG. 3 is a right side view of the embodiment of the sitting and ridging massage chair of FIG. 1, in accordance with the present utility model;
FIG. 4 is a perspective view of the wheel mechanism assembly mounting base of the embodiment of FIG. 1 of a sitting and ridging massage chair in accordance with the present utility model;
FIG. 5 is a front view of the wheel mechanism assembly mounting base of the embodiment of FIG. 4 of a sitting and ridging massage chair in accordance with the present utility model;
FIG. 6 is a top view of the wheel mechanism assembly mounting base of the embodiment of FIG. 4 of a sitting-position ridge-correcting massage chair according to the present utility model;
FIG. 7 is a bottom view of the wheel mechanism assembly mounting base of the embodiment of FIG. 4 of a sitting-posture ridge-correcting massage chair in accordance with the present utility model;
FIG. 8 is a perspective view of the wheel mechanism of the embodiment of FIG. 1 of a sitting-posture ridge-correcting massage chair in accordance with the present utility model;
FIG. 9 is a front view of the wheel mechanism of the embodiment of FIG. 1 of a sitting-posture ridge-correcting massage chair in accordance with the present utility model;
FIG. 10 is a right side view of the wheel mechanism of the embodiment of FIG. 1 of a sitting-posture ridge-correcting massage chair in accordance with the present utility model;
FIG. 11 is a perspective view of the traction mechanism of the embodiment of FIG. 1 of a sitting-posture ridge-correcting massage chair in accordance with the present utility model;
FIG. 12 is a front view of the traction mechanism of the embodiment of FIG. 1 of a sitting and ridging massage chair in accordance with the present utility model;
FIG. 13 is a right side view of the traction mechanism of the embodiment of FIG. 1 of a sitting and ridging massage chair in accordance with the present utility model;
FIG. 14 is a top view of the traction mechanism of the embodiment of FIG. 1 of a sitting-posture ridge-correcting massage chair in accordance with the present utility model;
FIG. 15 is a schematic view of the rotational direction of the four wheel mechanisms of the embodiment of FIG. 1 of a sitting-posture ridge-correcting massage chair according to the present utility model;
FIG. 16 is a schematic view of a force analysis of the spinal column when subjected to axial forces;
FIG. 17 is a schematic view of a force analysis of the spinal column when subjected to lateral forces;
FIG. 18 is a schematic view of a force analysis of the spinal column as it is subjected to axial and transverse complex forces;
fig. 19 is a perspective view of a conventional massage chair provided with a pulley mechanism.
Reference numerals illustrate:
1 a backrest; 2 armrests; 3 a first runner mechanism; 4, a second rotating wheel mechanism; 5 a third runner mechanism; 6 a fourth wheel mechanism; 7, a traction mechanism; 8, mounting a base; 9 a first rotating mechanism mounting hole; 10 a second runner mechanism mounting hole; 11 a third runner mechanism mounting hole; 12 fourth wheel mechanism mounting holes; 13 rotating the bracket by a rotating wheel mechanism; 14 ball support; 15 ball spindle; 16 balls; 17 a traction belt; 18 chin traction; 19 traction belt support; 20 control end; a 21 pulley mechanism; 22 traction mechanism mounting support.
Detailed Description
The present embodiment is merely a preferred embodiment, and the arrangement and connection of the respective constituent components in the preferred embodiment are not limited to the following embodiments described in the present embodiment, and may be any arrangement and combination of the constituent components to form a complete embodiment.
As shown in figures 1-15, the sitting posture ridge correcting massage chair comprises a backrest 1, wherein a mounting base 8 is fixedly arranged on the backrest 1, two groups of rotating wheel mechanisms are symmetrically arranged on the two sides of the central axis of the mounting base 8 and correspond to the upper and lower positions of the two sides around the human spine, each group of rotating wheel mechanisms comprises a first rotating wheel mechanism 3, a second rotating wheel mechanism 4, a third rotating wheel mechanism 5 and a fourth rotating wheel mechanism 6, a traction mechanism mounting support 22 is fixedly arranged on the top of the backrest 1, and a traction mechanism 7 is arranged on the traction mechanism mounting support 22. Two groups of mounting holes are symmetrically formed in the upper and lower positions of the mounting base 8 along the two sides of the central axis, and the two groups of mounting holes are respectively a first rotating wheel mechanism mounting hole 9, a second rotating wheel mechanism mounting hole 10, a third rotating wheel mechanism mounting hole 11 and a fourth rotating wheel mechanism mounting hole 12. The rotating wheel mechanism comprises a rotating wheel mechanism rotating support 13, one end of the rotating wheel mechanism rotating support 13 is connected with a motor, a three-jaw support is arranged at the other end of the rotating wheel mechanism rotating support, three ball supports 14 are arranged on the three-jaw support, concave grooves are formed in the ball supports 14, ball rotating shafts 15 are arranged in the concave grooves, and balls 16 are sleeved on the ball rotating shafts 15. The traction mechanism 7 comprises a control end 20, one end of the control end 20 is connected with a traction mechanism mounting support 22, and the other end is provided with a traction belt bracket 19. The traction mechanism 7 comprises a traction belt 17, two ends of the traction belt 17 are respectively connected with a traction belt bracket 19, and the traction belt 17 is suspended at a position right below the traction belt bracket 19. The chin traction belt 18 is arranged in the middle of the traction belt 17. Including the armrest 2.
The traction mechanism 7 can also adopt any one of a cervical vertebra tractor with tension, a portable cervical vertebra tractor, a mechanical cervical vertebra tractor and an inflatable tractor.
The utility model starts from the stress analysis of scoliosis correction, on the basis of simplifying the spine into a two-dimensional model, the axial load, the transverse load and the composite load statics of the two in the scoliosis correction are compared, and a sitting posture correcting spine massage chair is provided on the basis of the axial load and the transverse load, on the one hand, the biomechanics of the sitting posture correcting spine massage chair for applying force to the spine are obtained through the mechanical analysis of the traction mechanism and the rotation mechanism; on the other hand, the correction efficacy of the sitting posture correcting spine massage chair is simulated and demonstrated by adopting ANSYS software, and the influence of the traction mechanism and the rotating wheel mechanism on the spine micro-variation is further analyzed by changing the traction force of the traction mechanism and the transverse load and the longitudinal load provided by the rotating mechanism.
The working principle of the utility model is as follows: as shown in fig. 15, two sets of rotating wheel mechanisms are symmetrically arranged along two sides of a central axis of the mounting base 8 and correspond to upper and lower positions of two sides around a human spine, three balls 16 are uniformly distributed on a three-jaw support of each rotating wheel mechanism, the balls 16 perform circumferential rotation with a certain frequency under the driving of the motor and roll on a back, and tangential force applied to the back is transmitted to the spine, so that the functions of traction and stretching the spine are realized. The rotation directions of the four rotating wheel mechanisms are specifically as follows: the first rotating wheel mechanism 3 rotates from the outer side of the spine to the inner side of the spine, the rotating direction of the second rotating wheel mechanism 4 is opposite to the rotating direction of the first rotating wheel mechanism 3, the third rotating wheel mechanism 5 rotates from the inner side of the spine to the outer side of the spine, and the rotating direction of the fourth rotating wheel mechanism 6 is opposite to the rotating direction of the third rotating wheel mechanism 5. The rotating wheel mechanism not only provides transverse force, but also provides longitudinal force, thereby indirectly increasing traction force, and properly adjusting traction weight in a small range can realize the technical effect of enhancing human comfort. Because the traction effect cannot be achieved by simply relying on the friction force generated by the balls 16, the traction mechanism 7 is arranged and assembled on the upper side of the backrest, and the axial traction force provided by the traction belt bracket 19 can be adjusted through the control end, so that the function of stretching the spine is realized. From the above, the utility model realizes the optimal technical effect of correcting the ridge through the combined action of the rotating wheel mechanism and the traction mechanism.
The force analysis for scoliosis correction is specifically as follows:
the mechanics of scoliosis are defined as abnormal deformations (excessive bending or excessive rotation) between or within the vertebrae. In the correction of scoliosis, axial and lateral forces have been used in many applications. Axial forces are commonly applied to skeletal muscle traction, milwaukee's frame, harrington's system, and the like. Lateral forces are commonly applied at Milwaukee shelves and Risser tables. To compare the hydrostatic behavior of axial forces, lateral forces, and a combination of both in scoliosis correction, the spine is reduced to a two-dimensional model.
It is assumed that only axial forces are exerted on the spine, as shown in fig. 16. Axial forces act on two points a and B of the spinal column segment, the axial force at point a being upward and the axial force at point B being downward. The axial forces at points a and B have a traction straightening effect on the spine. Notably, the pulling mechanism employed in practice acts on each disc. Point C is the center of torsion, moving on the same frontal plane. The AC and BC segments simulate the deformity of the scoliosis Cobb angle. The corrective moment created by the axial force (i.e., bending moment) is defined as the force F times the perpendicular distance from the apex to the force. For the case where only axial forces are applied to the spine, the corrective moment Ma is:
Ma = FLsin(β) (1)
the length of the AC section and the length of the BC section are L, the axial force is F, and an included angle formed by the AC section and the AB section is beta.
It is assumed that only lateral forces are exerted on the spine, as shown in fig. 17. The transverse force F acts at point C, creating a force of 0.5F at both points a and B to balance. The lateral forces at points a and B have a push-straightening effect on the spine. The corrective moment created by the lateral force (i.e., bending moment) is defined as the force F times the perpendicular distance from the apex to the end vertebrae. A corrective moment is formed at point C which acts on the different discs to form the corrective action. For the case where only lateral forces are applied to the spine, the corrective moment Ma is:
Ma = 0.5FLcos(β) (2)
from the above analysis, the greater the severity of the lateral curvature, the longer the vertical distance from the apex to the applied force, and the shorter the vertical distance from the apex to the end, i.e., the corrective moment developed by the axial force increases with the increase in the degree of deformity, while the corrective moment developed by the transverse force decreases with the increase in the degree of deformity. It can be seen that the axial and lateral forces play different roles during correction of scoliosis. The axial force is exerted more significantly in the case of severe lateral bending, while the lateral force is exerted more significantly in the case of lighter lateral bending. If both axial and transverse forces are applied to the spine, the correction should be optimal.
It is assumed that axial and lateral forces are applied together on the spine as shown in fig. 18. For the case of simultaneous axial and lateral forces applied to the spine, the corrective moment Ma is:
Ma = FLsin(β) + 0.5FLcos(β) (3)
the analysis of the stress during the recovery of scoliosis shows that no matter how much the deformation degree of the spine is, the combined stress mode of axial traction and transverse extrusion has the best correction effect on the slight change of the spine.
Stress analysis and test data of the utility model:
to compare the effect of the lateral and longitudinal loads provided by the wheel mechanism on spinal correction, both the traction force and the lateral and longitudinal loads provided by the rotating mechanism were set as static forces in ANSYS.
The lateral and longitudinal load changes provided by the rotating mechanism affect spinal micro-variability at a traction of 10N. Wherein, when the transverse load is 0N and the longitudinal load is 5N, the distribution characteristics of the total deformation of the spine along with the axial length of the spine are as follows: the total deformation of the spine reaches a maximum 11.707 mm at the scoliosis, and the maximum total deformation gradually decreases with the increase of the upward or downward distance at the maximum scoliosis. The longitudinal load provided by the rotating mechanism produces a higher deformation in the upper portion of the spine than in the lower portion of the spine. The distribution characteristics of the total deformation of the spine along with the axial length of the spine when the transverse load is 5N and the longitudinal load is 0N are as follows: the total spinal deformation reaches a peak 11.703 mm at the spinal deformation, which is close to the maximum total deformation that would occur to the spinal column if the runner mechanism only provided a longitudinal load of 5N. It can be seen that the lateral load provided by the runner mechanism produces a higher overall deformation of the upper portion of the spine and a lower overall deformation of the lower portion of the spine.
The effect on spinal micro-variability when changing the compound load provided by the wheel mechanism when the traction is fixed at 10N. The combined load of the wheel mechanism was set to 5N, 10N and 15N, respectively. The distribution characteristics of the total deformation of the spine along with the axial length of the spine when the composite load is 5N are as follows: the maximum value of the total deformation of the spine is 16.389 mm, and the maximum deformation of the spine occurs. The total spinal column deflection is increased 4.682 mm when the runner mechanism provides only 5N lateral loads compared to 10N traction. The distribution characteristics of the total deformation of the spine along with the axial length of the spine when the composite load is 10N are as follows: the maximum total deformation of the spine still occurs at the most serious scoliosis, and the value is 28.083 mm. The distribution characteristics of the total deformation of the spine along with the axial length of the spine when the composite load is 15N are as follows: the maximum value of the total deformation of the vertebral column is 44.794mm, and the maximum deformation of the vertebral column is located. It can be seen that when the traction is fixed at 10N, the total deformation of the spine increases from 16.389 mm to 28.083 mm by 71.35% as the combined load of the runner mechanism changes from 5N to 10N. And when the composite load of the rotating wheel mechanism is increased from 10N to 15N, the total deformation of the spine is increased from 28.083 mm to 44.794mm, and the increase amplitude is 59.51%. Obviously, the deformation of the upper part of the spine caused by the composite load of the rotating wheel mechanism is higher than that of the lower part of the spine.
When the composite force of the rotating wheel mechanism is fixed to be 10N, the traction force is changed, and the effect on the spine micro-variation is realized. Traction is respectively set to be 0N, 15N and 20N, and the distribution characteristics of the total deformation of the spine along with the axial length of the spine when the traction is 0N are as follows: the maximum value of the total deformation of the spine is 26.212 mm, and the maximum deformation of the spine occurs. The distribution characteristics of the total deformation of the spine along with the axial length of the spine when the traction force is 15N are as follows: the maximum total deformation of the spine still occurs at the most serious scoliosis, and the value is 48.197 mm. The distribution characteristics of the total deformation of the spine along with the axial length of the spine when the traction force is 20N are as follows: the maximum value of the total deformation of the spine is 60.125 and mm, and the maximum deformation of the spine is located. It can be seen that when the combined force of the wheel mechanism is 10N, the total deformation of the spine increases from 26.212 mm to 28.083 mm by 7.13% as the traction force changes from 0N to 10N. When the traction force is increased from 10N to 15N, the total deformation of the vertebral column is increased from 28.083 mm to 48.197 mm, and the increase is 71.62%. When the traction force is increased from 15 to N to 20 to N, the total deformation of the vertebral column is increased from 48.197 mm to 60.125 to mm, and the increase is 24.75%. Although the increase in traction improves the total deformation of the spine, the deformation of the upper and lower portions of the spine is very pronounced and the axial direction of the entire spine is no longer in a vertical direction. It can be seen that under the combined force of the fixed wheel mechanism, excessive traction can cause the spine to overcorrect, resulting in the spine no longer being vertical. Obviously, the traction forces produce a higher deformation in the upper part of the spine than in the lower part of the spine. The analysis of the impact of the composite force and traction force of the rotating wheel mechanism on the spine micro-change is combined, and when the composite force of the rotating wheel mechanism is 10N, the traction force is recommended to be not higher than 10N. When the total load of the traction load and the total load provided by the rotating wheel mechanism is unchanged, the larger the traction load is, the more the total deformation of the spine is, and the increasing trend of the total deformation of the spine caused by the traction load provided by the rotating wheel mechanism is not as good as that of the total deformation of the spine caused by the traction load, and the axial and transverse loads provided by the rotating wheel mechanism can make up the insufficient traction load, so that the comfort of a patient in the rehabilitation and health care process is improved.
Through the mechanical analysis on the sitting posture ridge correcting massage chair, the utility model proves that the theoretical basis of ridge correcting can be consistent with the experimental data.
As shown in fig. 19, in the prior art, the force application manner of the massage chair with the pulley mechanism is generally that axial force or radial force is adopted independently for the spine, so that the motion track of the structures cannot well prevent or correct micro-deformation of the spine, and cannot realize the function of correcting the spine.

Claims (10)

1. The sitting posture correcting spine massage chair comprises a backrest (1) and is characterized in that a mounting base (8) is fixedly arranged on the backrest (1), two groups of rotating wheel mechanisms are symmetrically arranged on the two sides of the central axis of the mounting base (8) and correspond to the upper and lower positions of the two sides around the human spine respectively, each group of rotating wheel mechanisms comprises a first rotating wheel mechanism (3), a second rotating wheel mechanism (4), a third rotating wheel mechanism (5) and a fourth rotating wheel mechanism (6), a traction mechanism mounting support (22) is fixedly arranged at the top of the backrest (1), and a traction mechanism (7) is arranged on the traction mechanism mounting support (22); the rotating wheel mechanism comprises a rotating wheel mechanism rotating bracket (13), one end of the rotating wheel mechanism rotating bracket (13) is connected with a motor, the other end of the rotating wheel mechanism rotating bracket is provided with a three-jaw bracket, three ball supports (14) are arranged on the three-jaw bracket, the ball supports (14) are provided with concave grooves, ball rotating shafts (15) are arranged in the concave grooves, and balls (16) are sleeved on the ball rotating shafts (15); the rotation directions of the four rotating wheel mechanisms are specifically as follows: the first rotating wheel mechanism (3) rotates from the outer side of the spine to the inner side of the spine, the rotating direction of the second rotating wheel mechanism (4) is opposite to the rotating direction of the first rotating wheel mechanism (3), the third rotating wheel mechanism (5) rotates from the inner side of the spine to the outer side of the spine, and the rotating direction of the fourth rotating wheel mechanism (6) is opposite to the rotating direction of the third rotating wheel mechanism (5).
2. The sitting posture correcting spine massage armchair according to claim 1, characterized in that the mounting base (8) is symmetrically provided with two groups of mounting holes along the upper and lower positions of the two sides of the central axis, namely a first rotating wheel mechanism mounting hole (9), a second rotating wheel mechanism mounting hole (10), a third rotating wheel mechanism mounting hole (11) and a fourth rotating wheel mechanism mounting hole (12).
3. A sitting and ridging massage chair as claimed in claim 1, characterised in that the traction means (7) comprises a control end (20), one end of the control end (20) being connected to the traction means mounting support (22) and the other end being provided with a traction belt support (19).
4. A sitting-posture ridge-correcting massage chair according to claim 3, characterized in that the traction mechanism (7) comprises a traction belt (17), both ends of the traction belt (17) are respectively connected with the traction belt bracket (19), and the traction belt (17) is suspended at a position right below the traction belt bracket (19).
5. A sitting-posture correcting spine massage chair as claimed in claim 4, characterized in that the traction belt (17) is provided with a chin traction belt (18) in the middle.
6. A sitting-posture correcting ridge massage chair as claimed in claim 1, characterized by comprising armrests (2).
7. A sitting-posture correcting spine massage chair as claimed in claim 1, characterized in that the traction mechanism (7) is a cervical vertebra tractor with tension.
8. A sitting-posture correcting spine massage chair as claimed in claim 1, characterized in that the traction mechanism (7) is a portable cervical vertebra tractor.
9. A sitting-posture correcting spine massage chair as claimed in claim 1, characterized in that the traction mechanism (7) is a mechanical cervical vertebra tractor.
10. A sitting-posture correcting spine massage chair as claimed in claim 1, characterized in that the traction mechanism (7) employs an inflatable traction device.
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CN107854291A (en) * 2017-11-04 2018-03-30 杭州同筹网络科技有限公司 A kind of dependence mechanism applied to automatic massage chair and a kind of massage armchair
CN107661204A (en) * 2017-11-04 2018-02-06 杭州同筹网络科技有限公司 A kind of framework coordinated control system applied to massage armchair and a kind of massage armchair
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CN107693299A (en) * 2017-11-04 2018-02-16 杭州同筹网络科技有限公司 A kind of automatic massage chair
CN107928847A (en) * 2017-12-18 2018-04-20 天津医科大学 A kind of multi-pose spinal three-dimensional corrects robot
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