CN110897775A - Lumbar vertebra traction device of squat forming seat - Google Patents

Lumbar vertebra traction device of squat forming seat Download PDF

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Publication number
CN110897775A
CN110897775A CN201911256247.9A CN201911256247A CN110897775A CN 110897775 A CN110897775 A CN 110897775A CN 201911256247 A CN201911256247 A CN 201911256247A CN 110897775 A CN110897775 A CN 110897775A
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pair
seat plate
supporting block
seat
fixed
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CN110897775B (en
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覃小玲
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Xu Aiyu
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Dongguan Hukang Health Management Co Ltd
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices ; Anti-rape devices
    • A61F5/01—Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces
    • A61F5/04—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints
    • A61F5/042—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints for extension or stretching
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL 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
    • A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
    • A61H1/02—Stretching or bending or torsioning apparatus for exercising
    • A61H1/0218—Drawing-out devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL 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
    • A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
    • A61H1/02—Stretching or bending or torsioning apparatus for exercising
    • A61H1/0292—Stretching or bending or torsioning apparatus for exercising for the spinal column
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL 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
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/01—Constructive details
    • A61H2201/0119—Support for the device
    • A61H2201/0138—Support for the device incorporated in furniture
    • A61H2201/0149—Seat or chair
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL 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
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/12—Driving means
    • A61H2201/1238—Driving means with hydraulic or pneumatic drive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL 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
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16—Physical interface with patient
    • A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
    • A61H2201/1619—Thorax
    • A61H2201/1621—Holding means therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL 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
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16—Physical interface with patient
    • A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
    • A61H2201/1628—Pelvis
    • A61H2201/163—Pelvis holding means therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL 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
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16—Physical interface with patient
    • A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
    • A61H2201/1628—Pelvis
    • A61H2201/1633—Seat

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Vascular Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nursing (AREA)
  • Neurology (AREA)
  • Special Chairs (AREA)

Abstract

本发明公开了一种下蹲成型座椅的腰椎牵引装置，一对升降插杆自下而上依次竖直穿过下支撑块和上支撑块；升降插杆的上端螺接有限位螺母；升降插杆成型有齿条；齿条的下端面上成型有抵靠柱；座椅板支架的上侧的水平部左端成型有升降槽；一对齿条升降设置在升降槽内并且竖直滑行设置在升降槽的相应侧的侧壁上；升降槽的一对竖直部右上部之间枢接有前后方向的旋转中心柱；旋转中心柱的前后两端分别固定有驱动齿轮、中部固定有座椅板；驱动齿轮与相应侧的齿条啮合。本发明在腰椎牵引过程中，下蹲成型座椅在使用者下蹲时自动组合成座椅，供使用者使用，减轻使用者的疲劳感。

Figure 201911256247

The invention discloses a lumbar traction device for a squat molding seat. A pair of lift insert rods vertically pass through a lower support block and an upper support block in sequence from bottom to top; the upper end of the lift insert rod is screwed with a limit nut; The insertion rod is formed with a rack; the lower end surface of the rack is formed with an abutting column; the left end of the horizontal part of the upper side of the seat plate bracket is formed with a lifting groove; a pair of racks are arranged in the lifting groove and are vertically slidable. On the side wall of the corresponding side of the lifting groove; a rotating center column in the front and rear directions is pivotally connected between the upper right parts of the pair of vertical parts of the lifting groove; the front and rear ends of the rotating center column are respectively fixed with driving gears, and the middle part is fixed with a seat Seat plate; the drive gear meshes with the rack on the corresponding side. During the traction process of the lumbar vertebrae, the squat-molded seat is automatically assembled into a seat when the user squats, which is used by the user and relieves the user's sense of fatigue.

Figure 201911256247

Description

Lumbar vertebra traction device of squat forming seat
Technical Field
The invention relates to the field of lumbar traction, in particular to a lumbar traction device of a squat forming seat.
Background
The lumbar traction is to utilize the traction force and the counter traction force to act on the lumbar, and achieve the purpose of treating the lumbar disc herniation by traction in opposite directions. Lumbar traction can increase the lumbar clearance, mainly the lumbar 3, 4, 5 and sacral 1 clearances. According to the research, the lumbar intervertebral space is widened by 1.5-2.5 mm after traction compared with the lumbar intervertebral space before traction, the inner part of the lumbar intervertebral space becomes negative pressure due to the widening of the intervertebral space, and the tension of the longitudinal ligament is favorable for the protruded nucleus pulposus part to reduce or change the relation between the protruded nucleus pulposus part and the nerve root. The intervertebral space is enlarged, and the zygapophyseal joint is pulled open, so that the intervertebral foramen can restore to the normal shape, and the extrusion to nerve roots is relieved. Traction can also make lumbar vertebra fully rest, reduce the stimulation of movement, be beneficial to the absorption and the elimination of tissue congestion and edema, and also can relieve muscle spasm and relieve intervertebral pressure.
The existing lumbar vertebra tractor needs a user to stand but cannot use other comfortable postures because the back outlet is provided with traction elements such as a traction cylinder and the like, so that the comfort of the user is greatly reduced.
Disclosure of Invention
The invention aims to provide a lumbar vertebra traction device of a squat forming seat, aiming at the technical problem that the existing lumbar vertebra traction device is not high in comfort.
The technical scheme for solving the technical problems is as follows: a lumbar vertebra traction device of a squat forming seat comprises a squat forming seat device and a lumbar vertebra traction unit; the lumbar traction unit comprises an upper binding belt on the upper side and a lower binding belt on the lower side; an upper supporting block is fixed at the right end of the outer surface of the upper binding belt; a lower supporting block is fixed at the right end of the outer surface of the lower binding belt; a pair of traction cylinders which are symmetrically arranged front and back are fixed on the upper end surface of the lower supporting block; the upper supporting block is fixed at the upper ends of the piston rods of the pair of traction cylinders; the squat forming seat device comprises a pair of lifting inserted rods which are symmetrically arranged front and back and a U-shaped seat plate support with a downward opening; a pair of lifting inserted rods sequentially and vertically penetrate through the lower supporting block and the upper supporting block from bottom to top; the upper end of the lifting inserted link is screwed with a limit nut; the lifting inserted bar is formed with a rack; a support column is formed on the lower end surface of the rack; a lifting groove is formed at the left end of the horizontal part at the upper side of the seat plate bracket; the front side wall and the rear side wall of the lifting groove are respectively flush with the end surfaces close to the pair of vertical parts of the seat plate bracket, and the left end of the lifting groove is not sealed; the pair of racks are arranged in the lifting groove in a lifting way and are vertically arranged on the side wall of the corresponding side of the lifting groove in a sliding way; a rotary central column in the front-rear direction is pivoted between the right upper parts of the pair of vertical parts of the lifting groove; the front end and the rear end of the rotating central column are respectively fixed with a driving gear, and the middle part of the rotating central column is fixed with a seat plate; the front end and the rear end of the lower end surface of the horizontal part of the seat plate bracket are provided with avoidance grooves matched with the driving gears on the corresponding sides; the driving gear is meshed with the rack on the corresponding side; limiting bolts are respectively and elastically inserted into the front end surface and the rear end surface of the seat plate bracket; the lower part of the rack is formed with a limit jack matched with a limit bolt on the corresponding side; the right end face of the lower supporting block exceeds the right end face of the upper supporting block; the part of the lower supporting block, which exceeds the upper supporting block, penetrates through the lower supporting block and is in threaded connection with a limiting bolt; the seat plate is located between the end surfaces of the pair of racks.
Preferably, when the seat plate is in a horizontal state, the lower end surface of the horizontal part of the seat plate bracket abuts against the upper end surface of the seat plate, and the limiting bolt is inserted into the limiting insertion hole on the corresponding side in the front-back direction; the lower terminal surface of spacing bolt and the lower terminal surface parallel and level of seat board support.
Preferably, a weight support plate is fixed at the lower part of the lifting inserted bar; the weight support plate is positioned below the lower support block; a spring is fixed on the lower end surface of the lower supporting block; the lower end of the spring is fixed on the upper end surface of the seat plate bracket; the right end of the weight supporting plate is provided with a vertical avoiding hole for the limiting bolt to pass through.
Preferably, the lower end of the abutting column is formed with a hemispherical shape.
Preferably, a tension spring supporting plate is formed at one end, far away from the pair of limiting bolts, of the pair of limiting bolts; a tension spring is sleeved on the limit plug pin; one end of the pair of tension springs close to is fixed on the end surface of the corresponding side of the seat plate bracket, and the other end of the pair of tension springs far away from is respectively fixed on the pair of tension spring supporting plates.
The invention has the beneficial effects that: in the lumbar traction process, the squat forming seat is automatically combined into a seat when a user squats, so that the seat is used by the user, and the fatigue of the user is relieved.
Drawings
FIG. 1 is a schematic structural view of a cross section of the present invention;
fig. 2 is a right-view structural diagram of the present invention.
In the figure, 10, squat forming seating arrangement; 11. a lifting inserted rod; 111. a weight support plate; 1110. vertical avoiding holes; 112. a rack; 1120. limiting the jacks; 113. an abutment post; 12. a limit nut; 13. a limit bolt; 15. a spring; 16. a seat pan support; 160. a lifting groove; 161. an avoidance groove; 17. rotating the central column; 171. a drive gear; 18. a seat plate; 20. a lumbar traction unit; 21. a binding belt is arranged; 211. an upper support block; 22. a traction cylinder; 23. a binding belt is arranged; 231. and a lower support block.
Detailed Description
As shown in fig. 1 and 2, the lumbar traction device of the squat-shaped chair comprises a squat-shaped chair device 10 and a lumbar traction unit 20; the lumbar traction unit 20 includes an upper binding band 21 on an upper side and a lower binding band 23 on a lower side; an upper supporting block 211 is fixed at the right end of the outer surface of the upper binding belt 21; a lower support block 231 is fixed at the right end of the outer surface of the lower binding band 23; a pair of traction cylinders 22 which are symmetrically arranged front and back are fixed on the upper end surface of the lower supporting block 231; the upper support block 211 is fixed to the upper ends of the piston rods of the pair of traction cylinders 22; the squat forming seat device 10 comprises a pair of lifting inserted rods 11 which are symmetrically arranged front and back and a U-shaped seat plate support 16 with a downward opening; the pair of lifting inserted rods 11 sequentially and vertically penetrate through the lower supporting block 231 and the upper supporting block 211 from bottom to top; the upper end of the lifting inserted link 11 is screwed with a limit nut 12; the lifting inserted bar 11 is formed with a rack 112; an abutting column 113 is formed on the lower end face of the rack 112; a lifting groove 160 is formed at the left end of the horizontal part at the upper side of the seat plate bracket 16; the front and rear side walls of the lifting groove 160 are flush with the end surfaces of the seat panel bracket 16 near the pair of vertical portions, respectively, and the left end of the lifting groove 160 is unsealed; a pair of racks 112 are arranged in the lifting groove 160 in a lifting way and vertically slide on the side wall of the corresponding side of the lifting groove 160; a rotating central column 17 in the front-rear direction is pivoted between the upper right parts of the pair of vertical parts of the lifting groove 160; the front end and the rear end of the rotating central column 17 are respectively fixed with a driving gear 171, and the middle part is fixed with a seat plate 18; the front and rear ends of the lower end surface of the horizontal portion of the seat panel bracket 16 are formed with escape grooves 161 that are fitted with the drive gears 171 on the corresponding sides; the driving gear 171 is engaged with the rack gear 112 on the corresponding side; limiting bolts 19 are respectively and elastically inserted into the front end surface and the rear end surface of the seat plate bracket 16; the lower part of the rack 112 is formed with a limit jack 1120 matched with the limit bolt 19 on the corresponding side; the right end surface of the lower support block 231 exceeds the right end surface of the upper support block 211; the part of the lower supporting block 231 exceeding the upper supporting block 211 penetrates through the lower supporting block and is screwed with a limiting bolt 13; the seat plate 18 is located between the adjacent end surfaces of the pair of racks 112.
When the seat plate 18 is in a horizontal state, the lower end surface of the horizontal portion of the seat plate bracket 16 abuts against the upper end surface of the seat plate 18 and the limit bolt 19 is inserted into the limit insertion hole 1120 on the corresponding side in the front-rear direction; the lower end surface of the limit bolt 19 is flush with the lower end surface of the seat plate bracket 16.
As shown in fig. 1 and 2, a weight support plate 111 is fixed to the lower part of the lifting insertion rod 11; the weight support plate 111 is located below the lower support block 231; a spring 15 is fixed on the lower end surface of the lower supporting block 231; the lower end of the spring 15 is fixed on the upper end surface of the seat plate bracket 16; the right end of the weight support plate 111 is formed with a vertical escape hole 1110 through which the limit bolt 13 passes.
As shown in fig. 1 and 2, the lower end of the abutment post 113 is formed with a hemispherical shape.
As shown in fig. 2, a tension spring support plate 191 is formed at the end of the pair of limit bolts 19 away from each other; the limit bolt 19 is sleeved with a tension spring 192; one ends of a pair of tension springs 192 close to each other are fixed to the end surfaces of the corresponding sides of the seat panel bracket 16, and the other ends thereof are fixed to a pair of tension spring support plates 191, respectively.
The working principle of the lumbar traction device of the squat forming chair is as follows:
initial state as shown in fig. 1, the seat plate 18 is disposed vertically downward, and the pair of racks 112 are at the lowermost end corresponding to the seat plate bracket 16;
when in use, firstly, the limit nut 12 is adjusted according to the height of a user to ensure that a pair of abutting columns 113 is lifted off the ground when in use, thus the traction of the lumbar vertebra is not influenced; then adjusting the upper and lower positions of the limit bolt 13; then the upper binding band 21 is bound below the soft ribs and the lower binding band 23 is bound above the crotch bones; then a pair of traction cylinders 22 is activated to separate the upper and lower straps 21 and 23 for traction; when standing tired, the user squats down, in the process, the pair of abutting columns 113 firstly touches the ground, the seat plate bracket 16 and the pair of lifting inserted rods 11 move upwards synchronously, when the seat plate bracket 16 abuts against the limiting bolt 13, the seat plate bracket 16 stops moving upwards, but the pair of lifting inserted rods 11 continuously move upwards relative to the seat plate bracket 16, so that the pair of racks 112 drive the seat plate 18 to rotate 90 degrees clockwise through the pair of driving gears 171 and the rotating central column 17, the vertical state is changed into the horizontal state, when the seat plate 18 is in the horizontal state, the pair of limiting bolts 19 are inserted into the limiting insertion holes 1120 to keep the seat plate 18 horizontal, the lower end surface of the limiting bolts 19 is flush with the lower end surface of the seat plate bracket 16, so that the hip of the user finally falls on the seat plate 18 in the horizontal state, and the user changes from the standing state into a sitting state, thereby relieving the feeling, the comfort is increased.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description herein, since various changes and modifications can be made in the details of the embodiment and the application range according to the spirit of the present invention.

Claims (5)

1. The utility model provides a lumbar vertebra draw gear of shaping seat squats down which characterized in that: comprises a squatting forming seat device (10) and a lumbar vertebra traction unit (20); the lumbar traction unit (20) comprises an upper binding belt (21) on the upper side and a lower binding belt (23) on the lower side; an upper supporting block (211) is fixed at the right end of the outer surface of the upper binding belt (21); a lower supporting block (231) is fixed at the right end of the outer surface of the lower binding belt (23); a pair of traction cylinders (22) which are symmetrically arranged front and back are fixed on the upper end surface of the lower supporting block (231); the upper supporting block (211) is fixed at the upper end of the piston rod of the pair of traction cylinders (22); the squat forming seat device (10) comprises a pair of lifting inserted rods (11) which are symmetrically arranged front and back and a U-shaped seat plate support (16) with an opening facing downwards; a pair of lifting inserted rods (11) sequentially and vertically penetrate through the lower supporting block (231) and the upper supporting block (211) from bottom to top; the upper end of the lifting inserted bar (11) is screwed with a limit nut (12); a rack (112) is formed on the lifting inserted bar (11); an abutting column (113) is formed on the lower end face of the rack (112); a lifting groove (160) is formed at the left end of the horizontal part at the upper side of the seat plate bracket (16); the front side wall and the rear side wall of the lifting groove (160) are respectively flush with the end surfaces of the seat plate bracket (16) close to the pair of vertical parts, and the left end of the lifting groove (160) is not sealed; a pair of racks (112) are arranged in the lifting groove (160) in a lifting way and are vertically arranged on the side wall of the corresponding side of the lifting groove (160) in a sliding way; a rotating central column (17) in the front-rear direction is pivoted between the right upper parts of the pair of vertical parts of the lifting groove (160); a driving gear (171) is respectively fixed at the front end and the rear end of the rotary central column (17), and a seat plate (18) is fixed in the middle of the rotary central column; front and back ends of the lower end surface of the horizontal part of the seat plate bracket (16) are formed with avoidance grooves (161) matched with the driving gears (171) on the corresponding sides; the driving gear (171) is meshed with the rack (112) on the corresponding side; limiting bolts (19) are respectively and elastically inserted into the front end surface and the rear end surface of the seat plate bracket (16); a limit jack (1120) matched with a limit bolt (19) at the corresponding side is formed at the lower part of the rack (112); the right end face of the lower supporting block (231) exceeds the right end face of the upper supporting block (211); the part of the lower supporting block (231) exceeding the upper supporting block (211) penetrates through the lower supporting block and is in threaded connection with a limiting bolt (13); the seat plate (18) is located between the adjacent end surfaces of the pair of racks (112).
2. The lumbar traction device of a squat forming chair as claimed in claim 1, wherein: when the seat plate (18) is in a horizontal state, the lower end surface of the horizontal part of the seat plate bracket (16) abuts against the upper end surface of the seat plate (18), the limiting bolt (19) is inserted into the limiting insertion hole (1120) on the corresponding side in the front-back direction, and the lower end surface of the limiting bolt (19) is flush with the lower end surface of the seat plate bracket (16).
3. The lumbar traction device of a squat forming chair as claimed in claim 1, wherein: a weight support plate (111) is fixed at the lower part of the lifting inserted bar (11); the weight support plate (111) is positioned below the lower support block (231); a spring (15) is fixed on the lower end surface of the lower supporting block (231); the lower end of the spring (15) is fixed on the upper end surface of the seat plate bracket (16); the right end of the weight support plate (111) is provided with a vertical avoiding hole (1110) for the limiting bolt (13) to pass through.
4. The lumbar traction device of a squat forming chair as claimed in claim 1, wherein: the lower end of the abutting column (113) is formed with a hemispherical shape.
5. The lumbar traction device of a squat forming chair as claimed in claim 1, wherein: one end of the pair of limiting bolts (19) far away is formed with a tension spring support plate (191); a tension spring (192) is sleeved on the limiting bolt (19); one ends of the pair of tension springs (192) close to each other are fixed to the end surfaces of the corresponding sides of the seat plate bracket (16), and the other ends of the pair of tension springs are fixed to the pair of tension spring support plates (191), respectively.
CN201911256247.9A 2019-12-10 2019-12-10 A lumbar traction device for a squat molding seat Expired - Fee Related CN110897775B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113197753A (en) * 2021-04-30 2021-08-03 芮文礼 Telescopic therapeutic robot for spinal rehabilitation and using method

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