CN217886489U - Forward-moving zero-gravity linkage massage chair frame with extendable seat part and back part angles - Google Patents

Forward-moving zero-gravity linkage massage chair frame with extendable seat part and back part angles Download PDF

Info

Publication number
CN217886489U
CN217886489U CN202122884228.XU CN202122884228U CN217886489U CN 217886489 U CN217886489 U CN 217886489U CN 202122884228 U CN202122884228 U CN 202122884228U CN 217886489 U CN217886489 U CN 217886489U
Authority
CN
China
Prior art keywords
frame
backrest
hinged
leg
seat
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
CN202122884228.XU
Other languages
Chinese (zh)
Inventor
吴景华
吕守熙
缪陈国
吴映华
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.)
Fujian Glory Health Technology Co ltd
Original Assignee
Fujian Glory Health Technology 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 Fujian Glory Health Technology Co ltd filed Critical Fujian Glory Health Technology Co ltd
Priority to CN202122884228.XU priority Critical patent/CN217886489U/en
Application granted granted Critical
Publication of CN217886489U publication Critical patent/CN217886489U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Massaging Devices (AREA)

Abstract

The utility model discloses a forward zero gravity linked massage chair frame with a seat part and a back part which can be unfolded, wherein two ends of a front supporting frame are respectively hinged with a bottom seat frame and a back frame; two ends of the rear support frame are respectively hinged with the bottom seat frame and the backrest frame; the bottom seat frame, the front support frame, the backrest frame and the rear support frame form a four-bar linkage; one end of the backrest swinging mechanism is hinged on the bottom seat frame, and the other end of the backrest swinging mechanism is hinged with any one of the front support frame, the rear support frame and the backrest frame; one end of the movable seat frame is hinged with the backrest frame, the other end of the movable seat frame is hinged with one end of the seat frame linkage rod, and the other end of the seat frame linkage rod is hinged with the front support frame. The effects are as follows: the backrest swinging mechanism pushes the backrest frame to swing, the seat frame linkage rod can push the movable seat frame to swing, the movable seat frame moves forwards while the backrest frame swings to achieve zero gravity adjustment, and an included angle between the movable seat frame and the backrest frame is unfolded and changed, so that a user can feel comfortable in sitting and more comfortable in massage when lying down.

Description

Forward-moving zero-gravity linkage massage chair frame with extendable seat part and back part angles
Technical Field
The utility model relates to a massage armchair technical field, concretely relates to antedisplacement zero gravity linkage massage armchair frame that seat and back angle deployable.
Background
Patent application No. 201921725847.0's utility model discloses a zero gravity antedisplacement chair frame, it includes disjunctor frame, the chassis, two head rods, two second connecting rods and drive arrangement, two head rod intervals set up between disjunctor frame and chassis, the upper end of two head rods is articulated with disjunctor frame respectively, the lower extreme of two head rods is articulated with the chassis respectively, two second connecting rod intervals set up between disjunctor frame and chassis, the upper end of two second connecting rods is articulated with disjunctor frame respectively, the lower extreme of two second connecting rods is articulated with the chassis respectively. The drive device drives the conjoined frame to move, so that the massage chair can be adjusted to a proper angle; because the driving device is directly connected with the conjoined frame, the structure is simplified, the production cost is reduced, the reliability is improved, the driving device provides power, the conjoined frame is supported to a certain extent, and the stability of the massage chair is improved. Nevertheless the utility model discloses a contained angle of seat and back is fixed unchangeable all the time, can't reach the effect that seat and back deployable change, when making the people reach zero gravity, seat and back are unfolded, how to improve the not enough of prior art. Thus, the present invention has been studied.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides an antedisplacement zero gravity linkage massage chair frame that seat and back angle deployable to the contained angle of seat and the back of solving massage chair among the prior art is fixed unchangeable all the time, can't reach the problem of the effect that seat and back deployable change.
In order to achieve the above object, the present invention provides the following technical solutions:
according to a first aspect of the present invention, a forward zero gravity linked massage chair frame with a seat and back angle expandable, comprises a bottom seat frame, a front support frame, a rear support frame, a back frame, a movable seat frame, a seat frame linkage rod and a back swing mechanism;
one end of the front support frame is hinged with the bottom seat frame, and the other end of the front support frame is hinged with the backrest frame; one end of the rear support frame is hinged with the bottom seat frame, and the other end of the rear support frame is hinged with the backrest frame; the bottom seat frame, the front support frame, the backrest frame and the rear support frame are sequentially connected to form a four-bar mechanism;
one end of the backrest swinging mechanism is hinged to the bottom seat frame, and the other end of the backrest swinging mechanism is hinged to any one of the front support frame, the rear support frame and the backrest frame;
one end of the movable seat frame is hinged with the backrest frame, the other end of the movable seat frame is hinged with one end of the seat frame linkage rod, and the other end of the seat frame linkage rod is hinged with the front support frame.
Further, the backrest swinging mechanism is a backrest telescopic component, and the fixed end of the backrest telescopic component is hinged on the bottom seat frame.
Furthermore, the backrest frame linkage rod is arranged on the lower side of the front part of the backrest frame, and the telescopic end of the backrest telescopic component is hinged to the middle of the backrest frame linkage rod.
Furthermore, the telescopic end of the backrest telescopic component is hinged to the middle of the front support frame or the middle of the rear support frame.
Furthermore, the leg beautifying device also comprises a leg beautifying frame and a leg beautifying swinging mechanism, wherein the upper part of the leg beautifying frame is hinged at the front end of the movable seat frame, and the leg beautifying frame is connected with the leg beautifying swinging mechanism for pushing the leg beautifying frame to swing.
Furthermore, beautiful leg swing mechanism includes shank gangbar, shank promotion pole and supporting roller, the one end of shank gangbar articulates the lower extreme of back frame, the other end of shank gangbar articulates the middle part of shank promotion pole, the one end of shank promotion pole articulates the head seat frame front end, the other end of shank promotion pole rotates and is connected with supporting roller.
Further, beautiful leg swing mechanism includes beautiful leg telescopic component, shank and promotes piece and supporting roller, the lower extreme of the articulated back frame of stiff end of beautiful leg telescopic component, the flexible end of beautiful leg telescopic component articulates the middle part that the shank promoted the piece, the one end that the shank promoted the piece articulates the front end of movable seat frame, the other end that the shank promoted the piece rotates and is connected with supporting roller.
Further, the supporting roller is arranged on the back side surface of the leg beautifying frame in a rolling mode.
Furthermore, the leg beautifying telescopic component is any one of an electric push rod, an air cylinder or a hydraulic cylinder.
Further, the backrest telescopic component is any one of an electric push rod, an air cylinder or a hydraulic cylinder.
The utility model has the advantages of as follows:
1. the utility model discloses when utilizing back swing mechanism to promote the swing of back frame, the seat frame gangbar can promote the swing of movable seat frame, makes the seat frame antedisplacement when the swing of back frame is accomplished zero gravity and is adjusted, can make the people when lying down the massage, the position of sitting can not nest always and is being uncomfortable, and the better exhibition of massage reaches the effect of relaxing, and experience comfort level is better.
2. The angle of the backrest frame and the movable seat frame can be continuously unfolded and changed by the driving of an electric push rod, and the backrest frame and the movable seat frame have the advantages of simple structure, reliable work and low cost.
3. The rotation point of the movable seat frame with the novel structure is arranged on the backrest frame, so that the unfolding rotation point of the backrest and the seat part can not be changed when the backrest and the seat part are linked, and the smooth operation of the unfolding mechanism is ensured.
4. The utility model discloses but still set up wobbling beautiful leg frame in back frame front portion, play the support to the shank, beautiful leg frame can realize in addition through beautiful leg swing mechanism and adjust with the linkage of back frame, forms a complete massage armchair function, and it is more convenient to use, and the cost is lower.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary and that other implementation drawings may be derived from the provided drawings by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic side view of an initial state of a forward movement zero-gravity linkage massage chair frame with a seat and a back having an extendable angle according to embodiment 1 of the present invention.
Fig. 2 is an exploded view of a forward movement zero gravity linkage massage chair frame with a seat and a back that can be unfolded according to embodiment 1 of the present invention.
Fig. 3 is a schematic axial view of an initial state of an antedisplacement zero gravity linkage massage chair frame with an extendable seat and back angle according to embodiment 1 of the present invention.
Fig. 4 is a schematic side view of a zero gravity state of a forward movement zero gravity linkage massage chair frame with a seat and a back having an extendable angle according to embodiment 1 of the present invention.
Fig. 5 is a schematic axial view of a zero-gravity state of a forward-moving zero-gravity linkage massage chair frame with a deployable seat and back angles according to embodiment 1 of the present invention.
Fig. 6 is a schematic side view of an initial state of a forward movement zero gravity linkage massage chair frame with a deployable seat and back angles according to embodiment 2 of the present invention.
Fig. 7 is an axial schematic view of the massage chair frame with extendable seat and back angles in the initial state of the forward movement zero-gravity linkage provided by embodiment 2 of the present invention.
Fig. 8 is a schematic side view of the forward zero-gravity linkage massage chair frame with the extendable seat and back angles in a zero-gravity state according to embodiment 2 of the present invention.
Fig. 9 is a schematic axial view of a zero-gravity state of a forward movement zero-gravity linkage massage chair frame with a deployable seat and back angles according to embodiment 2 of the present invention.
Fig. 10 is a side view of the massage chair frame of the present invention, which has an extendable seat and back with zero gravity and is moved forward, according to embodiment 3 of the present invention.
Fig. 11 is an axial schematic view of the massage chair frame with extendable seat and back angles in the initial state of the forward movement zero-gravity linkage provided by embodiment 3 of the present invention.
Fig. 12 is a schematic side view of a zero-gravity state of a forward-moving zero-gravity linked massage chair frame with a seat and a back having an extendable angle according to embodiment 3 of the present invention.
Fig. 13 is a schematic axial view of a zero-gravity state of a forward-moving zero-gravity linkage massage chair frame with a deployable seat and back angles according to embodiment 3 of the present invention.
Fig. 14 is a schematic side view of the massage chair frame with forward movement and zero gravity linkage, which is provided by embodiment 4 of the present invention and has an extendable seat and back angle.
Fig. 15 is an axial schematic view of the massage chair frame with extendable seat and back angles in the initial state of the forward movement zero-gravity linkage provided by embodiment 4 of the present invention.
Fig. 16 is a schematic side view of a forward movement zero-gravity linkage massage chair frame with a seat and a back having an extendable angle according to embodiment 4 of the present invention in a zero-gravity state.
Fig. 17 is a schematic axial view of a zero-gravity state of a forward movement zero-gravity linkage massage chair frame with a deployable seat and back angles according to embodiment 4 of the present invention.
In the figure: 1. the leg-beautifying folding backrest comprises a backrest frame, 2 parts of a movable seat frame, 3 parts of a leg linkage rod, 4 parts of a leg pushing rod, 5 parts of a supporting roller, 6 parts of a leg-beautifying frame, 7 parts of a seat frame linkage rod, 8 parts of a front support frame, 9 parts of a backrest telescopic component, 10 parts of a bottom seat frame, 11 parts of a rear support frame, 12 parts of a backrest frame linkage rod, 13 parts of a leg pushing component, 14 parts of a leg-beautifying telescopic component.
Detailed Description
The present invention is described in detail with reference to the specific embodiments, and other advantages and effects of the present invention will be apparent to those skilled in the art from the disclosure herein. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1 to 3, a forward zero gravity linked massage chair frame with an extendable seat and back angle includes a bottom seat frame 10, a front support frame 8, a rear support frame 11, a back support frame 1, a movable seat frame 2, a seat frame linkage rod 7 and a back swing mechanism, wherein two ends of the front support frame 8 are respectively hinged with the bottom seat frame 10 and the back support frame 1, two ends of the rear support frame 11 are also respectively hinged with the bottom seat frame 10 and the back support frame 1, the bottom seat frame 10, the front support frame 8, the rear support frame 11 and the back support frame 1 form a four-bar mechanism, the back swing mechanism is arranged on the bottom seat frame 10, the back swing mechanism is connected with the back support frame 1, one end of the movable seat frame 2 is hinged with the back support frame 1, the other end of the movable seat frame 2 is hinged with one end of the seat frame linkage rod 7, and the other end of the seat frame linkage rod 7 is hinged with the front support frame 8.
The backrest swinging mechanism is a backrest telescopic component 9, the fixed end of the backrest telescopic component 9 is hinged with a bottom seat frame 10, a backrest frame linkage rod 12 is arranged on the lower side of the front part of the backrest frame 1, a hinge is arranged in the middle of the backrest frame linkage rod 12, and the telescopic end of the backrest telescopic component 9 is hinged with the hinge.
The forwards-moving zero-gravity linkage massage chair frame with the extendable seat part and back part angles further comprises a leg beautifying frame 6, the upper part of the leg beautifying frame 6 is hinged to the front side of the movable seat frame 2, and the leg beautifying frame 6 is connected with a leg beautifying swing mechanism for pushing the leg beautifying swing mechanism to swing.
The beautiful leg swing mechanism comprises a leg linkage rod 3, a leg pushing-up rod 4 and a supporting roller 5, one end of the leg linkage rod 3 is hinged with the backrest frame 1, the other end of the leg linkage rod is hinged with the middle part of the leg pushing-up rod 4, one end of the leg pushing-up rod 4 is hinged with the movable seat frame 2, the other end of the leg pushing-up rod 4 is connected with the supporting roller 5, and the supporting roller 5 is arranged on the back side surface of the beautiful leg frame 6.
Referring to fig. 4 to 5, when the backrest extension assembly 9 drives the backrest frame 1 and drives the front support frame 8 and the rear support frame 11 to swing, the movable seat frame 2, the seat frame linkage rod 7, the rear support frame 11 and the front support frame 8 form a link motion, that is: when the backrest telescopic component 9 is pushed out, the included angle between the backrest frame 1 and the movable seat frame 2 is changed from small to large to form an expansion trend, and when the backrest telescopic component 9 is retracted, the included angle between the backrest frame 1 and the movable seat frame 2 is changed from large to small. In addition, when the backrest telescopic component 9 is pushed out, the backrest frame 1 drives the leg linkage rod 3 to move forwards, the leg linkage rod 3 pushes the leg pushing and lifting rod 4 to move, so that the leg beautifying frame 6 is correspondingly lifted, otherwise, when the backrest telescopic component 9 is contracted, the leg beautifying frame 6 is correspondingly lowered, and the effect of leg linkage is achieved.
The backrest telescopic component 9 is adopted in the embodiment, the structure is reasonable, the driving is direct and reliable, and the backrest telescopic component 9 not only provides variable power, but also plays a role in stably supporting the chair frame; secondly, the structure can make the movable seat frame 2 and the backrest frame 1 realize the functions of angle expansion and continuous change, and the experience comfort level is better. And a linkage leg beautifying frame 6 is arranged at the front part of the backrest frame 1 to support legs, and under the cooperation of a linkage mechanism, the linkage adjustment of the leg beautifying frame 6 and the backrest frame 1 is realized to form a complete massage chair function.
Example 2
Referring to fig. 6 to 9, the present embodiment is different from embodiment 1 in that the fixed end of the back expansion assembly 9 is hinged to the bottom seat frame 10, and the expansion end of the back expansion assembly 9 is hinged to the middle of the front support frame 8, so as to form a new structure, which enables the driving stroke of the back expansion assembly 9 to be shorter.
Example 3
Referring to fig. 10 to 13, the present embodiment is different from embodiment 2 in that the fixed end of the back expansion assembly 9 is hinged to the bottom seat frame 10, and the expansion end of the back expansion assembly 9 is hinged to the middle of the rear support frame 11, so as to form a new structure, which enables the driving stroke of the back expansion assembly 9 to be shorter.
Example 4
Referring to fig. 14 to 17, the difference between the present embodiment and embodiment 1 is that the leg beautifying swing mechanism includes a leg beautifying telescoping component 14 and a leg pushing-lifting component 13, one end of the leg pushing-lifting component 13 is hinged to the movable seat frame 2, the other end of the leg pushing-lifting component 13 is provided with a supporting roller 5, the supporting roller 5 is arranged on the back side of the leg beautifying frame 6, the fixed end of the leg beautifying telescoping component 14 is hinged to the lower end of the back frame 1, and the telescoping end of the leg beautifying telescoping component 14 is hinged to the middle of the leg pushing-lifting component 13.
The leg-beautifying frame 6 in the present embodiment may be independently swingable, or may be a linkage structure in embodiment 1. In the embodiment, when the leg beautifying telescopic component 14 is pushed out, the leg beautifying frame 6 is lifted along with the leg beautifying telescopic component; the leg-beautifying telescoping assembly 14 of the present embodiment may be applied to any one of the embodiments 1 to 3 in place of the leg-beautifying swing mechanism linked with the back rest frame 1. The leg beautifying telescopic component 14 is added to independently control the leg beautifying frame 6, namely, the leg beautifying telescopic component 14 and the leg pushing and lifting piece 13 are used for realizing independent lifting of the leg, so that the leg is independently controlled, the comfort level is better, and the massage experience is richer.
In embodiments 1 to 4, the leg-beautifying telescoping assembly 14 is any one of an electric push rod, an air cylinder or a hydraulic cylinder; the backrest telescopic component 9 is any one of an electric push rod, an air cylinder or a hydraulic cylinder.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
In the present invention, the terms "upper", "lower", "left", "right", "middle", and the like are used for clarity of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof without substantial changes in the technical content are also regarded as the scope of the present invention.

Claims (10)

1. A forward zero gravity linkage massage chair frame with an expandable seat part and a deployable back part is characterized by comprising a bottom seat frame (10), a front support frame (8), a rear support frame (11), a back rest frame (1), a movable seat frame (2), a seat frame linkage rod (7) and a back rest swinging mechanism;
one end of the front support frame (8) is hinged with the bottom seat frame (10), and the other end of the front support frame (8) is hinged with the backrest frame (1); one end of the rear supporting frame (11) is hinged with the bottom seat frame (10), and the other end of the rear supporting frame (11) is hinged with the backrest frame (1); the bottom seat frame (10), the front support frame (8), the backrest frame (1) and the rear support frame (11) are sequentially connected to form a four-bar mechanism;
one end of the backrest swinging mechanism is hinged to the bottom seat frame (10), and the other end of the backrest swinging mechanism is hinged to any one of the front support frame (8), the rear support frame (11) and the backrest frame (1);
one end of the movable seat frame (2) is hinged with the backrest frame (1), the other end of the movable seat frame (2) is hinged with one end of the seat frame linkage rod (7), and the other end of the seat frame linkage rod (7) is hinged with the front support frame (8).
2. A forward moving zero gravity linked massage chair frame with deployable seat and back angles according to claim 1, characterized in that the backrest swinging mechanism is a backrest telescopic assembly (9), the fixed end of the backrest telescopic assembly (9) is hinged on the bottom seat frame (10).
3. The forward-moving zero-gravity linkage massage chair frame with the deployable seat and back angles according to claim 2, characterized by further comprising a backrest frame linkage rod (12), wherein the backrest frame linkage rod (12) is arranged on the lower side of the front portion of the backrest frame (1), and the telescopic end of the backrest telescopic component (9) is hinged to the middle of the backrest frame linkage rod (12).
4. A forward moving zero gravity linked massage chair frame with deployable seat and back angles according to claim 2, characterized in that the telescopic end of the backrest telescopic assembly (9) is hinged in the middle of the front support frame (8) or in the middle of the rear support frame (11).
5. A forward moving zero gravity linked massage chair frame with a deployable seat and back angles according to claim 1, further comprising a leg beautifying frame (6) and a leg beautifying swinging mechanism, wherein the upper part of the leg beautifying frame (6) is hinged at the front end of the movable seat frame (2), and the leg beautifying frame (6) is connected with the leg beautifying swinging mechanism for pushing the leg beautifying swinging mechanism to swing.
6. A forward-moving zero-gravity linkage massage chair frame with a deployable seat part and back part angles as claimed in claim 5, characterized in that the leg beautifying swing mechanism comprises a leg linkage rod (3), a leg pushing-up rod (4) and a supporting roller (5), one end of the leg linkage rod (3) is hinged at the lower end of the back frame (1), the other end of the leg linkage rod (3) is hinged at the middle part of the leg pushing-up rod (4), one end of the leg pushing-up rod (4) is hinged at the front end of the movable seat frame (2), and the other end of the leg pushing-up rod (4) is rotatably connected with the supporting roller (5).
7. A forward-moving zero-gravity linkage massage chair frame with a deployable seat part and a deployable back part, according to claim 5, characterized in that the leg beautifying swing mechanism comprises a leg beautifying telescopic component (14), a leg pushing and lifting component (13) and a supporting roller (5), the fixed end of the leg beautifying telescopic component (14) is hinged with the lower end of the backrest frame (1), the telescopic end of the leg beautifying telescopic component (14) is hinged with the middle part of the leg pushing and lifting component (13), one end of the leg pushing and lifting component (13) is hinged with the front end of the movable seat frame (2), and the other end of the leg pushing and lifting component (13) is rotatably connected with the supporting roller (5).
8. A forward zero gravity linked massage chair frame with deployable seat and back angles according to claim 6 or 7, characterized in that the supporting rollers (5) are arranged rolling on the back side of the leg beautifying frame (6).
9. A forward moving zero gravity linked massage chair frame with deployable seat and back angles according to claim 7, wherein the leg beautifying telescoping assembly (14) is any one of an electric push rod, an air cylinder or a hydraulic cylinder.
10. The forward-moving zero-gravity linkage massage chair frame with the deployable seat part and the deployable back part according to claim 2, characterized in that the backrest telescopic component (9) is any one of an electric push rod, an air cylinder or a hydraulic cylinder.
CN202122884228.XU 2021-11-23 2021-11-23 Forward-moving zero-gravity linkage massage chair frame with extendable seat part and back part angles Active CN217886489U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122884228.XU CN217886489U (en) 2021-11-23 2021-11-23 Forward-moving zero-gravity linkage massage chair frame with extendable seat part and back part angles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122884228.XU CN217886489U (en) 2021-11-23 2021-11-23 Forward-moving zero-gravity linkage massage chair frame with extendable seat part and back part angles

Publications (1)

Publication Number Publication Date
CN217886489U true CN217886489U (en) 2022-11-25

Family

ID=84106833

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122884228.XU Active CN217886489U (en) 2021-11-23 2021-11-23 Forward-moving zero-gravity linkage massage chair frame with extendable seat part and back part angles

Country Status (1)

Country Link
CN (1) CN217886489U (en)

Similar Documents

Publication Publication Date Title
CN213097053U (en) Bracket mechanism, chair frame body and chair
CN213720904U (en) Chair frame mechanism and chair with same
CN213097009U (en) Seat moving mechanism, seat frame and seat
CN105962667A (en) Mechanical stretching device and chair unit
US20220125200A1 (en) Movable chair support structure and chair having the same
CN112741443A (en) Sofa frame structure and sofa with prevent pressing from both sides function
CN111671264A (en) Multifunctional leisure chair frame structure and control method
CN217886489U (en) Forward-moving zero-gravity linkage massage chair frame with extendable seat part and back part angles
CN112741444A (en) Sofa frame structure and sofa
CN109124120B (en) Iron frame for standing-assisting deck chair and working method thereof
CN215193420U (en) Forward-moving zero-gravity linkage massage chair frame with extendable seat part and back part angles
CN207767908U (en) Bi-motor liftable old-man chair
CN217471556U (en) Structure improved chair frame
CN214433143U (en) Sofa frame structure and sofa
CN209694577U (en) A kind of chair frame
CN210008761U (en) Sofa frame with improved structure
CN218607270U (en) Massage chair frame with multi-connecting-rod backrest angle cooperative adjusting mechanism
CN209950818U (en) Mechanical stretching support and sofa
CN218515908U (en) Handrail assembly devices and massage armchair
CN210842266U (en) Automatic telescopic chair frame
CN209219611U (en) Leg rest retractable driving device
CN218515907U (en) Massage chair frame with backrest angle cooperative adjusting mechanism
CN218129160U (en) Chair type massage machine
CN208659754U (en) A kind of back lifting and song leg mechanism of nursing bed
CN213720903U (en) Seat activity support body and seat

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant