CN110025453B - Massage chair - Google Patents

Massage chair Download PDF

Info

Publication number
CN110025453B
CN110025453B CN201910428218.XA CN201910428218A CN110025453B CN 110025453 B CN110025453 B CN 110025453B CN 201910428218 A CN201910428218 A CN 201910428218A CN 110025453 B CN110025453 B CN 110025453B
Authority
CN
China
Prior art keywords
massage chair
movable frame
push rod
frame
seat back
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201910428218.XA
Other languages
Chinese (zh)
Other versions
CN110025453A (en
Inventor
林美满
陈加福
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mengfali Rice Field Health Technology Xiamen Co ltd
Original Assignee
Mengfali Rice Field Health Technology Xiamen Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mengfali Rice Field Health Technology Xiamen Co ltd filed Critical Mengfali Rice Field Health Technology Xiamen Co ltd
Priority to CN201910428218.XA priority Critical patent/CN110025453B/en
Publication of CN110025453A publication Critical patent/CN110025453A/en
Application granted granted Critical
Publication of CN110025453B publication Critical patent/CN110025453B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • A61H1/005Moveable platform, e.g. vibrating or oscillating platform for standing, sitting, laying, leaning
    • 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
    • A61H2201/00Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/12Driving means
    • A61H2201/1207Driving means with electric or magnetic drive

Abstract

A massage chair comprises a base, a seat back frame, a movable frame, a driving piece, a swing arm and a connecting rod, wherein a slide rail is arranged on the base; the movable frame is provided with a pulley matched with the slide rail, and the seat back frame is arranged on the movable frame; one end of the connecting rod is rotatably connected with one end of the base along the sliding direction of the sliding rail, one end of the swing arm is rotatably connected with the other end of the connecting rod, and the driving piece drives the other end of the swing arm to rotate, so that the movable frame can reciprocate along the sliding rail. The massage armchair can realize swinging with any radian under a zero gravity state, and the swinging process is smoother without blockage.

Description

Massage chair
Technical Field
The invention relates to the technical field of massage equipment, in particular to a massage chair.
Background
At present, massage chairs with a swinging function on the market all adopt a flat push rod or a push rod as driving, so that the problem of unsmooth reversing pause transition exists, the massage chair slides slowly without swinging experience feeling, and the sliding is uncomfortable after repeated reciprocation.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a massage chair which can swing more smoothly.
In order to solve the technical problems, the invention adopts the technical scheme that:
a massage chair comprises a base, a seat back frame, a movable frame, a driving piece, a swing arm and a connecting rod, wherein a slide rail is arranged on the base;
the movable frame is provided with a pulley matched with the slide rail, and the seat back frame is arranged on the movable frame;
one end of the connecting rod is rotatably connected with the base along the sliding direction of the sliding rail, one end of the swing arm is rotatably connected with the other end of the connecting rod, and the driving piece drives the other end of the swing arm to rotate, so that the movable frame can reciprocate along the sliding rail.
The invention has the beneficial effects that: the driving piece drives the swing arm to rotate, and the swing arm is hinged to the connecting rod, the connecting rod is hinged to the base, and the base is generally placed on the ground, so that the movable frame can move along the sliding rail under the action force of the swing arm, and the seat back frame arranged on the movable frame can reciprocate along the sliding rail.
The massage chair can solve the problems of short pause, slow driving speed, unobvious swinging and the like caused by reversing of the traditional horizontal push rod and the push rod, can provide smooth swinging experience for a user, and plays the roles of eliminating fatigue and helping sleep to a certain extent.
Drawings
Fig. 1 is a schematic structural view of a massage chair according to an embodiment of the present invention;
FIG. 2 is a schematic view showing a raised state of a lower leg frame of the massage chair according to the embodiment of the present invention;
FIG. 3 is a schematic view of another perspective of the raised position of the lower leg frame of the massage chair according to the embodiment of the present invention;
FIG. 4 is a side view of a collapsed position of the lower leg frame of the massage chair according to the embodiment of the present invention;
FIG. 5 is a side view of a raised position of a lower leg frame of the massage chair according to the embodiment of the present invention;
fig. 6 is a schematic structural view of a base of the massage chair according to the embodiment of the invention;
fig. 7 is a schematic structural view of a movable frame of the massage chair according to the embodiment of the invention;
fig. 8 is an exploded view of the movable frame of the massage chair according to the embodiment of the present invention;
fig. 9 is a schematic structural view of a seat back frame of the massage chair according to the embodiment of the invention;
fig. 10 is a schematic structural view of a driving member of the massage chair according to the embodiment of the present invention;
description of reference numerals:
10. a base; 11. a slide rail; 12. an ear mount; 13. a rack;
20. a seat back frame;
30. a movable frame; 31. a pulley; 32. a movable plate; 33. a pulley bearing;
40. a drive member; 41. swinging arms; 42. a connecting rod;
50. a first linkage shaft;
60. a second linkage shaft;
70. a gear; 71. a gear bearing;
80. an electric push rod;
90. a lower leg frame; 91. a first push rod; 92. a second push rod.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The most key concept of the invention is as follows: the driving piece is utilized to drive the swing arm to rotate, so that the movable frame is driven by a reaction force to move along the slide rail through the connecting rod, and the seat back frame reciprocates along the slide rail.
Referring to fig. 1-10, a massage chair includes a base 10, a seat back frame 20, a movable frame 30, a driving member 40, a swing arm 41 and a connecting rod 42, wherein a slide rail 11 is disposed on the base 10;
the movable frame 30 is provided with a pulley 31 matched with the slide rail 11, and the seat back frame 20 is arranged on the movable frame 30;
one end of the connecting rod 42 is rotatably connected with the base 10 along the sliding direction of the sliding rail 11, one end of the swing arm 41 is rotatably connected with the other end of the connecting rod 42, and the driving member 40 drives the other end of the swing arm 41 to rotate, so that the movable frame 30 reciprocates along the sliding rail 11.
From the above description, the beneficial effects of the present invention are: the driving piece drives the swing arm to rotate, and the swing arm is hinged to the connecting rod, the connecting rod is hinged to the base, and the base is generally placed on the ground, so that the movable frame can move along the sliding rail under the action force of the swing arm, and the seat back frame arranged on the movable frame can reciprocate along the sliding rail.
The massage chair can solve the problems of short pause, slow driving speed, unobvious swinging and the like caused by reversing of the traditional horizontal push rod and the push rod, can provide smooth swinging experience for a user, and plays the roles of eliminating fatigue and helping sleep to a certain extent.
Further, the driving member 40 is disposed on the movable frame 30 or the seat back frame 20.
As can be seen from the above description, the driving member 40 serves to drive the swing arm 41 and also serves to bear the reaction force of the swing arm 41 to move the movable frame 30.
Further, the number of the slide rails 11 is two, and the two slide rails 11 are respectively disposed on two sides of the base 10.
As can be seen from the above description, the two slide rails 11 make the sliding of the movable frame 30 more stable.
Further, still include first universal driving shaft 50, the adjustable shelf 30 both sides are equipped with at least one respectively and slide rail 11 cooperation pulley 31 that sets up with both sides, the pulley 31 of adjustable shelf 30 both sides respectively one-to-one sets up, and a pair of pulley 31 that corresponds the setting is located respectively the both ends of first universal driving shaft 50.
As can be seen from the above description, the two pulleys 31 correspondingly arranged can run more smoothly by arranging the first linkage shaft 50.
Further, the device also comprises at least two gears 70, wherein the at least two gears 70 are respectively arranged at two sides of the movable frame 30;
a rack 13 is arranged in the slide rail 11, the rack 13 extends along the sliding direction of the slide rail 11, and the gear 70 is matched with the rack 13.
As can be seen from the above description, the reciprocating motion can be made more smooth by providing the rack 13.
Further, the device further comprises at least two second linkage shafts 60, at least two gear bearings 71 and at least two pulley bearings 33, wherein the gears 70, the gear bearings 71 and the second linkage shafts 60 are sequentially sleeved at two ends of the first linkage shaft 50, and the pulleys 31 and the pulley bearings 33 are sequentially sleeved on the second linkage shafts 60.
As apparent from the above description, the gear 70 and the pulley 33 can be operated more smoothly by providing the second coupling shaft 60, the gear bearing 71 and the pulley bearing 33.
Further, an electric push rod 80 is also included;
the seat back frame 20 is hinged with the movable frame 30;
the electric push rod 80 is arranged on the movable frame 30, and the output end of the electric push rod 80 is connected with the front end of the seat back frame 20.
As can be seen from the above description, the front end of the seat back frame 20, which is referred to in the art as the end near the user, may also be referred to as the front of the seat back frame 20. While the seat back frame 20 swings along with the movable frame 30, if the position of the seat back frame 20 needs to be adjusted, the output end of the electric push rod 80, i.e., the tail end of the push rod, extends forwards or retracts backwards, so that the seat back frame 20 can rotate relative to the movable frame 30.
Further, the leg rest 90, the first push rod 91 and the second push rod 92 are also included;
the lower leg frame 90 is hinged with the front end of the seat back frame 20;
one end of the first push rod 91 is hinged to the movable frame 30, the other end of the first push rod 91 is hinged to one end of the second push rod 92, the shaft of the second push rod 92 is hinged to the side wall of the seat back frame 20, and the other end of the second push rod 92 abuts against one side, close to the seat back frame 20, of the lower leg frame 90.
As can be seen from the above description, while the electric push rod 80 pushes the seat back frame 20 to rotate, the first push rod 91 and the second push rod 92 form a lever structure, a point where the second push rod 92 is hinged to the seat back frame 20 serves as a fulcrum, after the electric push rod 80 extends, the seat back frame 20 rotates relative to the movable frame 30, the first push rod 91 presses down one end of the second push rod 92, so that the other end of the second push rod 92 tilts up, and the lower leg frame 90 is pushed to tilt up.
Further, an ear seat 12 is disposed at one end of the base 10 along the sliding direction of the sliding rail 11, and one end of the connecting rod 42 is hinged to the ear seat 12.
Further, the movable frame 30 includes two connected movable plates 32, at least one of the pulleys 31 is disposed on each of the two movable plates 32, and the seat back frame 20 is hinged to each of the two movable plates 32.
As can be seen from the above description, the overall structure of the movable frame 30 is light, and the two movable plates 32 can be connected by the connecting rod, so as to ensure the structural strength.
Referring to fig. 1 to 10, a first embodiment of the present invention is:
a massage chair comprises a base 10, a seat back frame 20, a movable frame 30, a driving piece 40, a swing arm 41 and a connecting rod 42, wherein a slide rail 11 is arranged on the base 10;
the number of the slide rails 11 is two, the two slide rails 11 are respectively arranged on two sides of the base 10, the slide rails 11 are of an arc structure, the concave surface of the arc surface faces the front surface of the massage chair, namely the surface where a user is located, a rack 13 is arranged in each slide rail 11, the radian of each rack 13 is the same as that of each slide rail 11, and each rack 13 extends along the sliding direction of each slide rail 11;
the movable frame 30 comprises two movable plates 32, the two movable plates 32 are fixedly connected through two connecting rods, the seat back frame 20 is hinged to the tops of the two movable plates 32 respectively, two pulleys 31 and two gears 70 are arranged on the outer sides of the two movable plates 32 respectively, the pulleys 31 on each side are arranged in a matched mode with the sliding rails 11 on the same side respectively, the gears 79 on each side are arranged in a matched mode with the racks 13 on the same side respectively, so that the movable frame 30 is provided with two pairs of four pulleys 31 and four gears 70, the movable frame 30 can be movably arranged along the sliding rails 11 through the matching of the pulleys 31 and the sliding rails 11, and the moving stability of the movable frame 30 is improved through the meshing of the gears 70 and the racks 13;
in order to further improve the stability, the massage chair further comprises first linkage shafts 50, second linkage shafts 60, gear bearings 71 and pulley bearings 33, wherein the second linkage shaft 60 is sleeved at each of two ends of each first linkage shaft 50, the gears 70 and the gear bearings 71 are sequentially sleeved on the second linkage shafts 60, and the pulleys 31 and the pulley bearings 33 are also sequentially sleeved on the second linkage shafts 60, so that the pulleys 31 and the gears 70 on the left side and the right side can be ensured to synchronously rotate;
as an alternative of this embodiment, the gear 70 may be replaced by a roller, and when the gear 70 is replaced by a roller, the rack 13 and the first linkage shaft 50 may be omitted in the technical solution of this application;
the ear seat 12 is arranged at one end of the base 10 close to the user, the driving member 40 is arranged on the movable frame 30, one end of the connecting rod 42 is rotatably connected with the ear seat 12, one end of the swing arm 41 is rotatably connected with the other end of the connecting rod 42, the driving member 40 drives the other end of the swing arm 41 to rotate, that is, the driving member 40, the swing arm 41, the connecting rod 42 and the ear seat 12 are sequentially connected, and the driving member plays a role of driving the other end of the swing arm 41 to rotate, so that the movable frame 30 and the seat back frame 20 do reciprocating motion along the sliding rail 11;
the massage chair also comprises an electric push rod 80, a shank frame 90, a first push rod 91 and a second push rod 92;
the electric push rod 80 is arranged on the movable frame 30, the output end of the electric push rod 80 is connected with the front end of the seat back frame 20, and the lower leg frame 90 is hinged with the front end of the seat back frame 20; one end of the first push rod 91 is hinged to the movable frame 30, the other end of the first push rod 91 is hinged to one end of the second push rod 92, the shaft of the second push rod 92 is hinged to the side wall of the seat back frame 20, and the other end of the second push rod 92 abuts against one side, close to the seat back frame 20, of the lower leg frame 90.
The installation and the working process of the invention are as follows: firstly, assembling a driving piece 40, a swing arm 41 and a connecting rod 42, installing the driving piece 40 on the inner side of one movable plate 32 of a movable frame 30 after assembling, hinging the tail end of the connecting rod 42 with an ear seat 12, hinging a seat back frame 20 on the movable frame 30, respectively installing four pulleys 31 on the movable frame 30 into an arc-shaped sliding rail 11, and enabling a gear 70 to be matched with a rack 13;
when the driving member 40 works, the swing arm 41 rotates, and since the swing arm 41 is hinged to the connecting rod 42, the connecting rod 42 is hinged to the base 10, and the base 10 is generally placed on the ground, the movable frame 30 moves along the slide rail 11 under the action of the swing arm 41, so that the seat back frame 20 disposed on the movable frame 30 reciprocates along the slide rail 11.
In conclusion, the invention provides the massage chair with smoother swinging. The driving piece of the massage chair drives the swing arm to rotate, the swing arm is hinged to the connecting rod, the connecting rod is hinged to the base, and the base is generally placed on the ground, so that the movable frame can move along the sliding rail under the action force of the swing arm, and the seat back frame arranged on the movable frame can reciprocate along the sliding rail.
The massage chair can solve the problems of short pause, slow driving speed, unobvious swinging and the like caused by reversing of the traditional horizontal push rod and the push rod, can provide smooth swinging experience for a user, and plays the roles of eliminating fatigue and helping sleep to a certain extent.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention and the contents of the accompanying drawings, which are directly or indirectly applied to the related technical fields, are included in the scope of the present invention.

Claims (8)

1. A massage chair comprises a base and a seat back frame, wherein the base is provided with a slide rail, and the massage chair is characterized by further comprising a movable frame, a driving piece, a swing arm and a connecting rod;
the slide rail is of an arc-shaped structure, and the concave surface of the arc surface faces the front surface of the massage chair;
the movable frame is provided with a pulley matched with the slide rail, and the seat back frame is arranged on the movable frame;
one end of the connecting rod is rotatably connected with the base along the sliding direction of the sliding rail, one end of the swing arm is rotatably connected with the other end of the connecting rod, a connecting shaft of the swing arm is arranged along the left-right direction of the massage chair, and the driving piece drives the other end of the swing arm to rotate, so that the movable frame reciprocates along the sliding rail;
an ear seat is arranged at one end of the base along the sliding direction of the sliding rail, one end of the connecting rod is hinged with the ear seat, and a hinged shaft of the connecting rod is arranged along the left and right directions of the massage chair;
the driving piece is arranged on the movable frame or the seat back frame, and an output shaft of the driving piece is arranged along the left and right directions of the massage chair.
2. The massage chair as claimed in claim 1, wherein the number of the slide rails is two, and the two slide rails are respectively disposed on two sides of the base.
3. The massage chair as claimed in claim 2, further comprising a first linkage shaft, wherein at least one pulley is disposed on each of two sides of the movable frame and engaged with the slide rails on the two sides, the pulleys on each of the two sides of the movable frame are disposed in a one-to-one correspondence manner, and a pair of the corresponding pulleys are respectively sleeved on two ends of the first linkage shaft.
4. The massage chair as claimed in claim 3, further comprising at least two gears respectively disposed at two sides of the movable frame;
the rack is arranged in the sliding rail and extends along the sliding direction of the sliding rail, and the gear and the rack are arranged in a matched mode.
5. The massage chair as claimed in claim 4, further comprising at least two second linkage shafts, at least two gear bearings and at least two pulley bearings, wherein the gears, the gear bearings and the second linkage shafts are sequentially sleeved on two ends of the first linkage shaft, and the pulleys and the pulley bearings are sequentially sleeved on the second linkage shaft.
6. The massage chair of claim 1, further comprising an electric push rod;
the seat back frame is hinged with the movable frame;
the electric push rod is arranged on the movable frame, and the output end of the electric push rod is connected with the front end of the seat back frame.
7. The massage chair of claim 6, further comprising a lower leg, a first push rod and a second push rod;
the lower leg frame is hinged with the front end of the seat back frame;
one end of the first push rod is hinged to the movable frame, the other end of the first push rod is hinged to one end of the second push rod, the rod body of the second push rod is hinged to the side wall of the seat back frame, and the other end of the second push rod is abutted to one side, close to the seat back frame, of the lower leg frame.
8. The massage chair as claimed in claim 1, wherein the movable frame comprises two connected movable plates, at least one of the pulleys is disposed on each of the two movable plates, and the seat-back frame is hinged to each of the two movable plates.
CN201910428218.XA 2019-05-22 2019-05-22 Massage chair Active CN110025453B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910428218.XA CN110025453B (en) 2019-05-22 2019-05-22 Massage chair

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910428218.XA CN110025453B (en) 2019-05-22 2019-05-22 Massage chair

Publications (2)

Publication Number Publication Date
CN110025453A CN110025453A (en) 2019-07-19
CN110025453B true CN110025453B (en) 2022-05-10

Family

ID=67243014

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910428218.XA Active CN110025453B (en) 2019-05-22 2019-05-22 Massage chair

Country Status (1)

Country Link
CN (1) CN110025453B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210830145U (en) * 2019-08-13 2020-06-23 蒙发利稻田健康科技(厦门)有限公司 Rolling structure and chair with same
CN113827435B (en) * 2020-06-08 2024-04-09 蒙发利稻田健康科技(厦门)有限公司 Massaging chair
CN113143729B (en) * 2021-03-29 2023-09-15 厦门奥佳华智能健康设备有限公司 Chair frame and massage chair

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203763456U (en) * 2014-03-05 2014-08-13 福建荣耀健身器材有限公司 Coordinated type massage armchair leg beautifying rack
CN207173702U (en) * 2017-08-10 2018-04-03 万修杰 A kind of wagon box swing type perambulator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207429336U (en) * 2016-12-29 2018-06-01 蔡文忠 A kind of massage armchair
CN208525342U (en) * 2017-11-24 2019-02-22 浙江艾荣达健康科技有限公司 A kind of novel backrest and shank link massage armchair
CN208755417U (en) * 2018-01-22 2019-04-19 淮安美妙电子科技有限公司 Seat cushion linkage thigh support
CN208693719U (en) * 2018-01-22 2019-04-05 浙江恒林椅业股份有限公司 A kind of Massage chair frame device realizing backrest and toppling over leg rest lifting linkage

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203763456U (en) * 2014-03-05 2014-08-13 福建荣耀健身器材有限公司 Coordinated type massage armchair leg beautifying rack
CN207173702U (en) * 2017-08-10 2018-04-03 万修杰 A kind of wagon box swing type perambulator

Also Published As

Publication number Publication date
CN110025453A (en) 2019-07-19

Similar Documents

Publication Publication Date Title
CN110025453B (en) Massage chair
CN107041826B (en) Waist and lower limb combined type stretching exerciser
US6991609B2 (en) Massage assembly and massage machine incorporating same
US6519792B2 (en) Electric reciprocating system for baby carriage
CN107374897B (en) Massage chair movement
CN109431708B (en) Back supporting and leg bending mechanism, wheelchair comprising same and wheelchair bed comprising wheelchair
CN113350114B (en) Swing structure of massage chair and control method thereof
CN200987762Y (en) Massage device core extension flat-pushing mechanism
CN106580626B (en) Large-stroke massage chair
CN111840019A (en) Leg massage device
CN210844141U (en) Massage chair
CN107362006B (en) Massage armchair movement
CN107374898B (en) Massage chair movement
CN203633792U (en) Rocking chair
CN111759121A (en) Mechanical stretching support and sofa
WO2022134857A1 (en) Massage chair frame
CN214713371U (en) Massage chair frame
CN215536348U (en) Device is rubbed in shank opening and shutting
CN211962555U (en) Massage chair for elderly patients
CN220800614U (en) Rocking chair capable of rocking back and forth and up and down
CN211092857U (en) Mechanical stretching unit and electromechanical stretching device
CN212997383U (en) Translation back-pushing massage machine core
CN211323956U (en) Chair leg telescopic structure applied to whole-body massage chair
KR100805325B1 (en) Structure of wheel chair
CN110693227A (en) Electromechanical stretching device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant