CN108125435B - Old man's chair mechanical device - Google Patents
Old man's chair mechanical device Download PDFInfo
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- CN108125435B CN108125435B CN201810007860.6A CN201810007860A CN108125435B CN 108125435 B CN108125435 B CN 108125435B CN 201810007860 A CN201810007860 A CN 201810007860A CN 108125435 B CN108125435 B CN 108125435B
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- connecting piece
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- mounting plate
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/034—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest
- A47C1/035—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movably coupled seat and back-rest, i.e. the seat and back-rest being movably coupled in such a way that the extension mechanism of the foot-rest is actuated at least by the relative movements of seat and backrest
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
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- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Special Chairs (AREA)
Abstract
The invention relates to a mechanical extension device of an old man chair, which comprises a left part, a right part, a lifting base and an electric device, wherein the lifting base comprises a chassis, a lifting frame, a lifting connecting rod, a lifting frame and a welding connecting piece, one end of each of the lifting frame and the lifting connecting rod is rotatably arranged on the chassis, the other end of each of the lifting frame and the lifting connecting rod is rotatably connected with the lifting frame, the lifting frame is rotatably connected with the welding connecting piece, one end of the electric device is rotatably arranged on the chassis, the other end of the electric device is rotatably arranged on the welding connecting piece, the left part and the right part are respectively rotatably connected with two ends of the welding connecting piece, and the electric device drives the left part and the right part to move relative to the chassis through the welding connecting piece so as to enable the mechanical device of the old man chair to move. The invention is used for helping the old with inconvenient legs and feet and poor waist strength to stand up from the sofa, and is convenient for the old to move. The invention has the advantages of safety, stability, firm structure, high installation efficiency, material saving and perfection of the design of the chair for the old people.
Description
The application is a divisional application of a mechanical device of an old people chair in the patent application '201510965955.5', and the application date is 2015.12.22.
Technical Field
The invention relates to a mechanical device of an old people chair, in particular to a mechanical device of an old people chair, which can realize four postures and can realize slow and stable lifting. The invention is used for helping the old with inconvenient legs and feet and poor waist strength to stand up from the sofa, and is convenient for the old to move.
Background
The existing mechanical device of the old chair has six major defects: 1. the lifting part of the mechanical device of the old people chair is unstable and easy to shake, so that the comfort level is reduced, and the safety problem is easy to generate; 2. the assembly is divided into a plurality of parts, the steps are complicated, and the installation efficiency is low; 3. the steel consumption is large, and the cost is high; 4. the backrest is easy to shake; 5. the legs cannot be completely folded; 6. has a complex intermediate structure and is easy to cause safety problems.
Disclosure of Invention
The invention provides a mechanical device of an old people chair with an electric function, which is simple in structure, convenient to install, stable and reliable.
The purpose of the invention is realized by adopting the following technical scheme:
the utility model provides an old man's chair mechanical device, includes left side part, right side part, lift base and electric actuator, the lift base includes chassis, lift square frame, lift connecting rod, lift frame and welded connection spare, the lift square frame reaches lift connecting rod one end respectively rotate install in the chassis, the other end with the lift frame rotates to be connected, the lift frame with welded connection spare rotates to be connected, electric actuator one end rotate install in the chassis, the other end rotate install in welded connection spare, left side part and right side part respectively with welded connection spare's both ends are rotated and are connected, electric actuator passes through welded connection spare drives left side part reaches right side part the chassis activity makes old man's chair mechanical device moves.
Furthermore, the lifting base further comprises two adjustable connecting pieces, the two adjustable connecting pieces are respectively rotatably installed on the left side part and the right side part, and the square tubes of the two adjustable connecting pieces are sleeved into the square tube of the welding connecting piece, so that the function of adjusting the width is realized.
Further, the left side part reaches the right side part all includes bolted connection spare, preceding installed part and old man's chair seat frame mounting panel, bolted connection spare both ends respectively with adjustable connecting piece reaches preceding installed part rotates the connection, preceding installed part fixed mounting in old man's chair seat frame mounting panel.
Further, the left side part reaches the right side part all includes that the third rises connecting piece and second to rise the connecting piece, the third rise the connecting piece both ends respectively with geriatric chair seat frame mounting panel reaches the second rises the connecting piece and rotates the connection, the second rise the connecting piece with geriatric chair handrail mounting panel rotates the connection.
Furthermore, the left side part reaches the right side part all includes front and back conversion connecting piece, first lifting connecting piece and geriatric chair handrail mounting panel, front and back conversion connecting piece both ends respectively with the second lifting connecting piece reaches first lifting connecting piece rotates and links to each other, first lifting connecting piece rotates with geriatric chair handrail mounting panel and is connected.
Further, the left side component and the right side component each include a leg conversion member rotatably mounted to the first lifting link and rotatably coupled to the geriatric chair seat frame mounting plate.
Further, geriatric chair mechanical device still includes back conversion connector and back installed part, geriatric chair mechanical device is in position of sitting and when going up and down, the spacing bush of third on the back conversion connector with the tangent face of back installed part is tangent, has realized firm stable spacing, and firm stable not rock, safe and reliable uses comfortablely, has greatly optimized and has used experience.
Furthermore, the mechanical device of the old people chair is directly assembled with the sofa wooden frame by adopting an outward flanging design, and is not required to be divided into a plurality of assembling bodies for assembly, so that the installation efficiency is high.
The mechanical device of the old people chair is convenient to transport as a whole in a bolt connection mode, saves installation steps and improves installation efficiency; the universal zerowall sofa wooden frame is directly assembled with the sofa wooden frame by adopting an outward flanging design, does not need to be divided into a plurality of assembling bodies for assembling, and is high in installation efficiency. The left and right side parts are directly assembled with the lifting base, redundant intermediate connection is eliminated, safety and comfort are improved, material consumption is reduced, resources are saved, the installation mode is simplified, and labor efficiency is improved.
Drawings
FIG. 1 is a schematic view of the legs of either the left side member or the right side member of an embodiment of the present invention fully collapsed;
FIG. 2 is a schematic illustration of a left or right side member leg fully deployed in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view of the left or right side component of the embodiment of the present invention with the backrest fully reclined;
FIG. 4 is a schematic view of the fully raised lifting base of an embodiment of the present invention;
FIG. 5 is a schematic diagram of the components and operation of the main components of an embodiment of the present invention;
FIG. 6 is a bottom plate of the lifting base of the embodiment of the invention;
FIG. 7 is a block diagram of a lift base comprising an embodiment of the present invention;
FIG. 8 is a lifting frame that forms a lifting base according to an embodiment of the present invention;
FIG. 9 is a welded connection that constitutes a lifting base in accordance with an embodiment of the present invention;
FIG. 10 is an adjustable connector that forms a lifting base in accordance with an embodiment of the present invention;
FIG. 11 is a schematic diagram of an initial state of an embodiment of the present invention;
in the figure: 1-chair leg plate for elder; 2-a second chair leg rod for the old; 3-old people chair leg rod III; 4-a seat frame mounting plate of the old people's chair; 5-a front mounting; 6-rear mounting; 7-geriatric chair connecting rod; 8-mounting a bracket at the back; 9-backrest conversion connecting piece; 10-old people chair armrest mounting plate; 11-a second lifting link; 12-front-back conversion connection; 13-a third lifting link; 14-a first lifting connection; 15-a leg conversion piece; 16-old people chair leg bar four; 17-a first chair leg rod for the old; 18-bolt connection; 19-a first fixation hole; 20-a second fixation hole; 21-a third fixing hole; 22-a first shaft; 23-a fourth fixation hole; 24-a fifth fixation hole; 25-sixth fixation hole; 26-a second shaft; 27-a third shaft; 28-a fourth rotating shaft; 29-a fifth rotating shaft; 30-a sixth rotating shaft; 31-a seventh rotating shaft; 32-an eighth rotating shaft; 33-ninth rotating shaft; 34-a tenth rotating shaft; 35-an eleventh rotating shaft; 36-a lifting link; 37-a twelfth rotating shaft; 38-a thirteenth shaft; 39-fourteenth shaft; 40-a fifteenth rotating shaft; 41-sixteenth axis of rotation; 42-seventh fixation hole; 43-eighth fixation hole; 44-ninth fixation hole; 45-tenth fixation hole; 46-a seventeenth axis of rotation; 47-a motor; 48-eighteenth rotating shaft; 49-nineteenth axis of rotation; 50-a motor push rod; 51-sixth phase section; 52-a first spacing bush; 53-first phase section; 54-a second spacing bush; 55-second phase section; 56-third phase section; 57-plastic spacing pads; 58-a third stop bushing; 59-fourth phase section; 60-twentieth rotating shaft; 61-twenty-first spindle; 62-a twenty-second rotating shaft; 63-fifth phase section; 64-seventh phase section; 65-a chassis; 66-lifting frame; 67-lifting frame; 68-welding the connection; 69-Adjustable connection.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings.
This embodiment old man chair mechanical device includes left side part, right side part and lifting pedestal, and left side part passes through lifting pedestal fixed connection with right side part, wherein left side part, right side part all are equipped with old man chair handrail mounting panel 10, the second rises to rise connecting piece 11, shank converting part 15, first rising connecting piece 14, front and back converting connecting piece 12, back converting connecting piece 9, old man chair seat frame mounting panel 4, back installing support 8, old man chair foot pole one 17, old man chair foot pole two 2, old man chair foot pole three 3, old man chair foot pole four 16, old man chair foot board 1, old man chair connecting rod 7, third rise connecting piece 13, preceding installed part 5, back installed part 6, lifting pedestal is formed by spare part equipment such as chassis 65, lift square frame 66, lift frame 67, welded connection 68, adjustable connecting piece 69, lift connecting rod 36.
In the left and right side parts of the embodiment of the invention, the bolt connecting piece 18 is rotationally connected with the front mounting piece 5 through the first rotating shaft 22, the front mounting piece 5 is mounted on the seat frame mounting plate 4 of the old people's chair through the first fixing hole 19, the second fixing hole 20 and the third fixing hole 21 to drive the left and right sides to move, and the seat frame mounting plate 4 of the old people's chair is provided with the first limiting bush 52; the rear mounting piece 6 is connected with the mounting plate 4 of the seat frame of the old people chair through a fourth fixing hole 23, a fifth fixing hole 24 and a sixth fixing hole 26, and a fourth phase section 59 is arranged on the rear mounting piece 6; the rear mounting bracket 8 is rotatably connected with the seat frame mounting plate 4 of the old people chair and the backrest conversion connecting piece 9 at a twentieth rotating shaft 60 and a twenty-first rotating shaft 61 respectively, a third limiting bush 58 is mounted on the backrest conversion connecting piece 9, and the backrest conversion connecting piece 9 is connected with the armrest mounting plate 10 of the old people chair through a twenty-second rotating shaft 62; one end of a third lifting connecting piece 13 is connected with the seat frame mounting plate 4 of the old chair through a second rotating shaft 26, the other end is connected with a second lifting connecting piece 11 through a third rotating shaft 27, a first phase section 53 is arranged on the third lifting connecting piece 13, a third phase section 56 and a fifth phase section 63 are arranged on the second lifting connecting piece 11, the second lifting connecting piece 11 is connected with the armrest mounting plate 10 of the old chair through a fourth rotating shaft 28, two ends of a front-back conversion connecting piece 12 are respectively connected with the second lifting connecting piece 11 through a fifth rotating shaft 29 and a sixth rotating shaft 30, the first lifting connecting piece 14 is connected, a second phase cutting surface 55 is arranged on the first lifting connecting piece 14, one end of the first lifting connecting piece 14 is connected with the old people chair armrest mounting plate 10 through a seventh rotating shaft 31, the other end of the first lifting connecting piece is connected with the leg conversion piece 15 through an eighth rotating shaft 32, and a second limiting bush 54 is arranged on the old people chair armrest mounting plate 10; the leg conversion member 15 is connected to the geriatric chair connecting rod 7, the geriatric chair seat frame mounting plate 4, and the geriatric chair leg rod four 16 via a ninth rotating shaft 33, a tenth rotating shaft 34, and an eleventh rotating shaft 35, respectively.
In the lifting base of the embodiment of the invention, the lifting frame 66 is connected with the chassis 65 through the twelfth rotating shaft 37, the lifting frame 67 is connected with the lifting frame 66 through the fourteenth rotating shaft 39, and the lifting connecting rod 36 is connected with the lifting frame 67 and the chassis 65 through the thirteenth rotating shaft 38 and the fifteenth rotating shaft 40 respectively; the welding connecting piece 68 is connected with the lifting frame 67 through the sixteenth rotating shaft 41, and the square tube of the adjustable connecting piece 69 is sleeved into the square tube of the welding connecting piece 68, so that the function of adjusting the width is realized.
The left and right side parts are fixed on the lifting base through a seventh fixing hole 42, an eighth fixing hole 43, a ninth fixing hole 44 and a tenth fixing hole 45, one end of the bolt connecting piece 18 is connected with the adjustable connecting piece 69 through a seventeenth rotating shaft 46, and the other end is connected with the left and right side parts through the first rotating shaft 22, so that the function of driving the left and right side parts to move by the lifting base is realized; geriatric chair mechanical device contains electric actuator, and electric actuator rotates with welded connection 68 through eighteenth pivot 48 and is connected, and electric actuator installs on chassis 65 through nineteenth pivot 49, and electric actuator includes motor 47, motor push rod 50.
The motion principle of the embodiment is as follows: the motor push rod 50 slides to drive the lifting base to move and guide the left side and the right side to be linked. In the initial position, the lifting frame 67 contacts with the welding connector 68 (fig. 11), the motor push rod 50 is retracted, so that the welding connector 68 connected with the motor push rod 50 is driven to rotate, the welding connector 68 drives the adjustable connector 69 sleeved therein to move, the adjustable connector 69 drives the old people chair seat frame mounting plate 4 fixedly connected with the front mounting piece 5 to move through the bolt connector 18, and the rear mounting piece 6 fixed on the old people chair seat frame mounting plate 4 and the old people chair seat frame mounting plate 4 move simultaneously; the seat frame mounting plate 4 of the old man's chair drives the back mounting bracket 8, the third plays to rise connecting piece 13, shank converting part 15 and old man's chair foot pole three 3 to move simultaneously, and the back mounting bracket 8 drives back conversion connecting piece 9 and rotates, and shank converting part 15 drives old man's chair foot pole four 16 and old man's chair connecting rod 7 motion, drives the motion of shank from this. Under the action of gravity, the first lifting connecting piece 14 and the second limiting bush 54 are tangent to each other at a first phase tangent plane 53, the second lifting connecting piece 11 and the old chair armrest mounting plate 10 are tangent to each other at a fifth phase tangent plane 63, and the first lifting connecting piece 14 and the second lifting connecting piece 11 and the front-rear conversion connecting piece 12 are kept static; in the process of continuously recovering the motor push rod 50, the seat frame mounting plate 4 of the old people chair moves backwards, the leg extends forwards, and when the first limiting bush 52 and the third lifting connecting piece 13 are tangent to the first tangent plane 53, the leg is completely unfolded, so that the mechanical extension device of the old people chair realizes the process from the state shown in fig. 1 to the state shown in fig. 2.
Then the motor push rod 50 continues to be retracted, the third lifting connecting piece 13 drives the second lifting connecting piece 11 to rotate, the leg part converting piece 15 drives the first lifting connecting piece 14 to rotate, the front and rear converting connecting piece 12 is driven by the first lifting connecting piece 14 and the second lifting connecting piece 11 simultaneously, the first lifting connecting piece 14 which is originally tangent to the second limiting bushing 54 in the second phase tangent plane 55 and the second lifting connecting piece 11 which is tangent to the old chair armrest mounting plate 10 in the fifth phase tangent plane 63 are lifted upwards to leave the limiting position until the backrest is completely inclined when the second lifting connecting piece 11 is tangent to the old chair armrest mounting plate 10 in the third phase tangent plane 56, and thus the process of the movement state of the old chair mechanical stretching device from fig. 2 to fig. 3 is realized. Conversely, the mechanical extension device of the geriatric chair realizes the process of folding the leg from fig. 3 to fig. 2 to fig. 1 successively in the process that the motor push rod 50 moves forwards until the lifting frame 67 contacts the welding connection piece 68 at the sixth tangent plane 51 (see fig. 11).
In the initial state of fig. 11, when the motor push rod 50 continues to move forward, the lifting frame 66 and the lifting link 36, which are connected to the chassis 65 via the twelfth rotating shaft 37 and the fifteenth rotating shaft 40, move upward around the rotating shafts, so that the lifting frame 67, which is connected to the lifting frame 66 and the lifting link 36 via the thirteenth rotating shaft 38 and the fourteenth rotating shaft 39, is lifted, and the left and right sides, which are fixed to the lifting frame 67 and remain relatively stationary, are lifted together, so that the mechanical extension device for the geriatric chair achieves the process from the state of fig. 1 to the state of fig. 4. Conversely, when the motor push rod 50 is retracted, the mechanical extension device of the geriatric chair slowly descends until the plastic limit pad 57 on the lifting frame 66 contacts the chassis 65 at the seventh tangent plane 64, and the mechanical extension device of the geriatric chair returns to the initial sitting position.
The embodiment redesigns the component composition and structure, removes redundant intermediate connection, directly connects the left and right side components with the lifting base, simplifies the installation mode, improves the labor efficiency, and obviously improves the safety and the comfort.
The backrest limiting design is added in the embodiment, the sitting posture state of the old people chair sofa and the stability of the backrest in the lifting process are guaranteed, and the old people chair sofa backrest is safe and comfortable.
The embodiment adopts the flanging design, and general zerowall sofa wooden frame is directly assembled with the sofa wooden frame, need not to divide into a plurality of assemblies body, and the installation effectiveness is high.
The structure of the invention is convenient to assemble, safe and stable, and all the simple deformation or equivalent transformation of the invention is considered to fall into the protection scope of the invention.
Claims (4)
1. The utility model provides an old man chair mechanical device, includes left side part, right side part, lift base and electric actuator, its characterized in that: the lifting base comprises a chassis, a lifting frame, a lifting connecting rod, a lifting frame and a welding connecting piece, wherein the lifting frame and the lifting connecting rod are respectively rotatably arranged on the chassis at one end and rotatably connected with the lifting frame at the other end, the lifting frame is rotatably connected with the welding connecting piece, one end of an electric device is rotatably arranged on the chassis, the other end of the electric device is rotatably arranged on the welding connecting piece, a left part and a right part are respectively rotatably connected with two ends of the welding connecting piece, the electric device drives the left part and the right part relative to the chassis through the welding connecting piece to move the geriatric chair mechanical device, the left part and the right part respectively comprise a third lifting connecting piece, a second lifting connecting piece and an geriatric chair seat frame mounting plate, two ends of the third lifting connecting piece are respectively rotatably connected with the geriatric chair seat frame mounting plate and the second lifting connecting piece, the second lifting connecting piece is rotatably connected with the armrest mounting plate of the old people chair, the lifting frame is connected with the chassis through a twelfth rotating shaft, the lifting frame is connected with the lifting frame through a fourteenth rotating shaft, and the lifting connecting rod is respectively connected with the lifting frame and the chassis through a thirteenth rotating shaft and a fifteenth rotating shaft; the lifting base further comprises two adjustable connecting pieces, the two adjustable connecting pieces are respectively rotatably mounted on the left side part and the right side part, and a square tube of each adjustable connecting piece is sleeved into a square tube of the corresponding welding connecting piece;
the left side part and the right side part respectively comprise a front-back conversion connecting piece, a first lifting connecting piece and an armchair mounting plate, two ends of the front-back conversion connecting piece are respectively rotatably connected with the second lifting connecting piece and the first lifting connecting piece, and the first lifting connecting piece is rotatably connected with the armchair mounting plate;
the front-back conversion connecting piece is respectively and rotatably connected with the second lifting connecting piece and the first lifting connecting piece, and the first lifting connecting piece is respectively and rotatably connected with the armrest mounting plate and the leg conversion piece of the old chair; the leg conversion piece is respectively connected with the chair connecting rod, the chair seat frame mounting plate and the chair foot rod in a rotating way, the chair seat frame mounting plate is provided with a first limit bush, the chair armrest mounting plate is provided with a second limit bush, the third lifting connecting piece is provided with a first phase tangent plane, the second lifting connecting piece is provided with a third phase tangent plane and a fifth phase tangent plane, when the legs extend forwards, the first lifting connecting piece and the second limiting bush are tangent to the first tangent plane, the second lifting connecting piece and the old chair armrest mounting plate are tangent to the fifth tangent plane, the first lifting connecting piece, the second lifting connecting piece and the front-rear conversion connecting piece are kept static, after the legs are completely unfolded, if the motor push rod continues to be retracted, and the first lifting connecting piece tangent to the second tangent plane with the second limiting bushing and the second lifting connecting piece tangent to the old chair armrest mounting plate on the fifth tangent plane are lifted upwards to leave the limiting position.
2. The geriatric chair mechanism of claim 1, wherein: the left side part reaches the right side part all includes bolted connection spare, preceding installed part, bolted connection spare both ends respectively with adjustable connecting piece reaches preceding installed part rotates the connection, preceding installed part fixed mounting in old man's chair seat frame mounting panel.
3. The geriatric chair mechanism of claim 1, wherein: the geriatric chair mechanical device further comprises a backrest conversion connecting piece and a rear mounting piece, and when the geriatric chair mechanical device is in a sitting posture and a lifting state, a third limiting bush on the backrest conversion connecting piece is tangent to a tangent surface of the rear mounting piece.
4. The geriatric chair mechanism of claim 1, wherein: the mechanical device of the old people chair is directly assembled with the sofa wooden frame by adopting an outward flanging design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810007860.6A CN108125435B (en) | 2015-12-22 | 2015-12-22 | Old man's chair mechanical device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510965955.5A CN105455470B9 (en) | 2015-12-22 | 2015-12-22 | Old man's chair mechanical device |
| CN201810007860.6A CN108125435B (en) | 2015-12-22 | 2015-12-22 | Old man's chair mechanical device |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510965955.5A Division CN105455470B9 (en) | 2015-12-22 | 2015-12-22 | Old man's chair mechanical device |
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| Publication Number | Publication Date |
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| CN108125435A CN108125435A (en) | 2018-06-08 |
| CN108125435B true CN108125435B (en) | 2021-10-01 |
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| CN201510965955.5A Active CN105455470B9 (en) | 2015-12-22 | 2015-12-22 | Old man's chair mechanical device |
| CN201810007860.6A Active CN108125435B (en) | 2015-12-22 | 2015-12-22 | Old man's chair mechanical device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510965955.5A Active CN105455470B9 (en) | 2015-12-22 | 2015-12-22 | Old man's chair mechanical device |
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| CN105795775A (en) * | 2016-04-29 | 2016-07-27 | 东莞市捷科五金有限公司 | Structurally improved sofa chair frame |
| CN110876538B (en) * | 2019-11-25 | 2024-07-02 | 中源家居股份有限公司 | Mechanical stretching device with lifting function |
| US11109681B2 (en) | 2019-12-30 | 2021-09-07 | Changzhou Zehui Machinery Co., Ltd | Self-locking mechanism and lift chair therewith |
| CN111053389A (en) * | 2020-01-16 | 2020-04-24 | 中源家居股份有限公司 | Mechanical stretching device with lifting function |
| CN112089241A (en) * | 2020-08-05 | 2020-12-18 | 锐迈机械科技（吴江）有限公司 | Seat frame driven by double motors and seat |
| CN112021847A (en) * | 2020-08-05 | 2020-12-04 | 锐迈机械科技（吴江）有限公司 | Old man's chair lift actuating mechanism, seat frame and seat |
| CN112167864B (en) * | 2020-11-09 | 2024-07-02 | 安吉县盛信办公家具有限公司 | Electric rocking device of sofa rocking chair |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105455470B9 (en) | 2020-11-13 |
| CN105455470B (en) | 2018-02-09 |
| CN105455470A (en) | 2016-04-06 |
| CN108125435A (en) | 2018-06-08 |
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