CN113616011B - Two-shaft type seat backrest convenient to adjust elevation angle and distance and adjustable seat - Google Patents

Two-shaft type seat backrest convenient to adjust elevation angle and distance and adjustable seat Download PDF

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Publication number
CN113616011B
CN113616011B CN202111067561.XA CN202111067561A CN113616011B CN 113616011 B CN113616011 B CN 113616011B CN 202111067561 A CN202111067561 A CN 202111067561A CN 113616011 B CN113616011 B CN 113616011B
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CN
China
Prior art keywords
adjusting
lock sleeve
handle
supporting plate
magnetic block
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CN202111067561.XA
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Chinese (zh)
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CN113616011A (en
Inventor
陈向林
桑明喆
宋海峰
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Wuhu Aiguole Intelligent Technology Co ltd
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Wuhu Aiguole Intelligent Technology Co ltd
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Priority to CN202111067561.XA priority Critical patent/CN113616011B/en
Publication of CN113616011A publication Critical patent/CN113616011A/en
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Publication of CN113616011B publication Critical patent/CN113616011B/en
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C3/00Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/36Support for the head or the back
    • A47C7/40Support for the head or the back for the back
    • A47C7/46Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A47C7/462Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

The invention discloses a two-axis type seat backrest and an adjustable seat, wherein the elevation angle and the distance of the seat backrest are convenient to adjust, and the seat backrest comprises a backrest body and two adjusting modules; a transverse supporting plate is fixed on the back of the backrest body, and a longitudinal supporting plate is connected to the middle of the transverse supporting plate; the longitudinal support plate is provided with a hollowed-out slideway; an adjusting handle is also arranged on the longitudinal supporting plate; the middle part of the adjusting handle is provided with a pull handle, and the upper part and the lower part of the adjusting handle are respectively provided with a chute; each adjusting module comprises an adjusting arm and a sliding shaft, the front end of the adjusting arm is rotationally connected with the sliding shaft, the sliding shaft is inserted into the hollowed-out slideway in a penetrating way, and an inner lock sleeve and an outer lock sleeve are rotationally connected on the sliding shaft; the inner lock sleeve and the outer lock sleeve are respectively provided with a tilted rod, and the end parts of the tilted rods are in sliding fit with the sliding grooves of the adjusting handles; the rear end of the adjusting arm is rotationally connected with the fixed sleeve; the pull handle is movably connected with the longitudinal supporting plate. The backrest can adjust the distance and the elevation angle of the backrest body, and improves the comfort level of use so as to adapt to different users.

Description

Two-shaft type seat backrest convenient to adjust elevation angle and distance and adjustable seat
Technical Field
The invention relates to the technical field of seats, in particular to a two-shaft type seat backrest and an adjustable seat, wherein the elevation angle and the distance of the seat backrest are convenient to adjust.
Background
The seat is a seat for people to work, learn, leisure and entertain. When people sit on the seat for a long time, the waist is easy to be ache, so that most of the existing seats at present are provided with a backrest, and the back of a human body is relaxed by pressing the waist against the backrest. Therefore, whether a seat can adapt to the bending curvature of the waist of different fat and thin people by stepless adjustment of elevation angle and distance is a main standard for measuring whether the seat is comfortable and good or bad.
However, most existing seats cannot achieve stepless adjustment of the distance and elevation angle of the backrest, which directly affects the comfort of use of the seat; especially for children, the body of the children can change continuously along with the age, and if the seat cannot timely adapt to the waist growth of the children, the body and mind normal development of the children is directly affected.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a two-axis type seat backrest and an adjustable seat, which are convenient for adjusting elevation angle and distance; the backrest of the chair can be used for stepless adjustment of the distance and the elevation angle of the backrest, so that the comfort level of the chair is improved, and the chair is suitable for different users.
In order to achieve the technical purpose and the technical effect, the invention is realized by the following technical scheme:
a two-axis type seat backrest convenient for adjusting elevation angle and distance comprises a backrest body and two adjusting modules which are arranged up and down;
a transverse supporting plate is fixed on the back of the backrest body, and a longitudinal supporting plate is connected to the middle of the transverse supporting plate; the upper part and the lower part of the longitudinal supporting plate are respectively provided with a hollowed-out slideway; the longitudinal supporting plate is also provided with an adjusting handle close to the hollowed-out slideway; the middle part of the adjusting handle is provided with a pull handle, and the upper part and the lower part of the adjusting handle are respectively provided with a sliding groove extending longitudinally;
each adjusting module comprises an adjusting arm and a sliding shaft, the front end of the adjusting arm is rotationally connected with the sliding shaft, the sliding shaft is inserted into a hollowed-out slideway of the longitudinal supporting plate, and an inner lock sleeve and an outer lock sleeve which are connected are rotationally connected on the sliding shaft; the inner lock sleeve and the outer lock sleeve are respectively provided with a tilted rod which extends outwards, and the end parts of the tilted rods are in sliding fit with the sliding grooves of the adjusting handles; the rear end of the adjusting arm is rotationally connected with a fixed sleeve;
the pull handle of the adjusting handle is movably connected with the middle part of the longitudinal supporting plate; pulling the pull handle or breaking the adjusting handle to enable the end part of the warping rod to slide in the chute so as to drive the inner lock sleeve and the outer lock sleeve to rotate relatively, and further drive the sliding shaft and the adjusting arm to move, and the backrest body is adjusted.
As a further improvement of the technical scheme, the inner lock sleeve is provided with an inner locking arc, the outer lock sleeve is provided with an outer locking arc, the inner locking arc and the outer locking arc are oppositely arranged and are of involute structures, and the inner locking arc of the inner lock sleeve and the outer locking arc of the outer lock sleeve are matched with the hollowed-out slideway.
As a further improvement of the technical scheme, grooves are respectively arranged on the inner lock sleeve and the outer lock sleeve, a pressure spring is connected between the grooves of the inner lock sleeve and the grooves of the outer lock sleeve, and limit balls are arranged at the ends of the tilted rods on the inner lock sleeve and the outer lock sleeve and are in sliding fit with the sliding grooves of the adjusting handle.
As a further improvement of the technical scheme, the warping rod is of a C-shaped structure.
As a further improvement of the technical scheme of the invention, the pull handle of the adjusting handle is movably connected with the middle part of the longitudinal supporting plate through a movable connecting component; the movable connecting component comprises a fixed magnetic block, a movable magnetic block and a spring; the spring is connected with the middle parts of the pull handle and the longitudinal support plate; the fixed magnet is arranged in the middle of the longitudinal support plate, the movable magnet is arranged on the pull handle, and the fixed magnet is attracted with the movable magnet.
As a further improvement of the technical scheme, the rear end of the adjusting arm is provided with a transmission tooth part, two adjusting arms in the two adjusting modules are meshed through the transmission tooth parts, the transmission tooth parts of the adjusting arms are connected with the fixed sleeve through a rotating shaft, and the side surfaces of the adjusting arms are also connected with the fixed sleeve through torsion springs.
As a further improvement of the technical scheme of the invention, the two ends of the sliding shaft are provided with buckles so as to limit the sliding shaft.
As a further improvement of the technical scheme, the upper end part of the adjusting handle is provided with a breaking handle.
Further, when the distance between the longitudinal support plate and the pull handle is smaller than 1cm, the magnetic attraction between the fixed magnetic block and the movable magnetic block is larger than the elasticity of the spring, so that the adjusting handle is attracted to the longitudinal support plate; when the distance between the longitudinal support plate and the pull handle is greater than 1cm, the magnetic attraction between the fixed magnetic block and the movable magnetic block is smaller than the elasticity of the spring, and the adjusting handle is pushed away from the longitudinal support plate by the spring.
The invention also provides an adjustable seat, which is provided with the seat backrest, and the fixing sleeve in the seat backrest is fixed on the seat upright post.
The beneficial effects of the invention are as follows:
the seat backrest provided by the invention is provided with two adjusting modules, and the end part of the warping rod can slide in the sliding groove of the adjusting handle by pulling the pull handle in the adjusting module or pulling the adjusting handle in the adjusting module so as to drive the inner lock sleeve and the outer lock sleeve in the adjusting module to rotate relatively, so that the seat backrest can be matched with the back of a human body to carry out stepless adjustment of distance and elevation angle, the seat backrest can adapt to waist elevation angles of people with different fat and thin and sitting postures, and adapt to waist bending curvature of different people, the seat backrest is always attached to the waist, and the waist is supported, so that the use comfort and experience are improved; moreover, the invention has the advantages of ingenious design, simple operation and convenient use.
Drawings
Fig. 1 is a schematic perspective view of an adjustable seat according to the present invention.
Fig. 2 is a front view of an adjustable seat of the present invention.
Fig. 3 is a cross-sectional view taken along line B-B in fig. 2.
Fig. 4 is an enlarged schematic view at C in fig. 3.
Fig. 5 is a perspective view of fig. 2 taken along line A-A.
Fig. 6 is an enlarged schematic view at D in fig. 5.
Fig. 7 is an enlarged schematic view at E in fig. 5.
Fig. 8 is a perspective view of fig. 2 taken along line B-B.
Fig. 9 is an enlarged schematic view at F in fig. 8.
Fig. 10 is a partial cross-sectional view of a seat back in accordance with the present invention.
In the figure: 1: a backrest body; 2: adjusting module, 21: adjusting arm, 211: drive teeth, 212: torsion spring, 22: sliding shaft, 221: clasp, 23: inner lock sleeve, 231: inner locking arc, 24, outer lock sleeve, 241: outer locking arc, 25: groove, 26: compression spring, 27: stick up pole, 271: a limit ball; 3: longitudinal support plate, 31: hollow slide ways; 4: a transverse support plate; 5: adjustment handle, 51: pull handle, 52: breaking handle, 53: a chute; 6: a fixed sleeve; 7: fixing the magnetic block; 8: a movable magnetic block; 9: and (3) a spring.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "front", "rear", "left", "right", "upper", "lower", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
A preferred embodiment of an adjustable seat having a two-axis seat back for facilitating adjustment of elevation angle and distance as shown in fig. 1 to 10; the seat backrest comprises a backrest body 1 and two adjusting modules 2 which are arranged up and down.
A transverse supporting plate 4 is fixed on the back of the backrest body 1, and the middle part of the transverse supporting plate 4 is connected with a longitudinal supporting plate 3; the longitudinal supporting plate 3 is of a groove structure, and the upper part and the lower part of the left side and the right side of the longitudinal supporting plate are respectively provided with a hollowed-out slideway 31; the longitudinal supporting plate 3 is also provided with an adjusting handle 5 which is close to the hollowed-out slideway 31 on one side; the middle part of the adjusting handle 5 is provided with a pull handle 51, and the upper part and the lower part of the adjusting handle 5 are respectively provided with a sliding groove 53 extending longitudinally. The upper end of the adjusting handle 5 is also provided with a breaking handle 51.
Each adjusting module 2 comprises an adjusting arm 21 and a sliding shaft 22, the front end of the adjusting arm 21 is rotationally connected with the sliding shaft 22, two ends of the sliding shaft 22 are inserted into the hollow slide ways 31 of the longitudinal support plate 3, the tail end of the sliding shaft 22 is also provided with a buckle 221, and the buckle 221 leans against the outer side of the hollow slide ways 31 of the longitudinal support plate 3 to limit the sliding shaft 22 and prevent the sliding shaft 22 from falling off. The two ends of the sliding shaft 22 are rotatably connected with an inner lock sleeve 23 and an outer lock sleeve 24; the inner lock sleeve 23 is connected to the middle position of the outer lock sleeve 24; the inner lock sleeve 23 is provided with an inner locking arc 231, the outer lock sleeve 24 is provided with an outer locking arc 241, the inner locking arc 231 and the outer locking arc 241 are oppositely arranged and are of involute structures, and the inner locking arc 231 of the inner lock sleeve 23 and the outer locking arc 241 of the outer lock sleeve 24 are matched with the hollowed slide way 31. The opposite locking arcs on the inner lock sleeve 23 and the outer lock sleeve 24 can limit the position relationship between the inner lock sleeve 23 and the outer lock sleeve 24 and the longitudinal support plate 3, so that the position relationship between the sliding shaft 22 and the longitudinal support plate 3 is limited by the inner lock sleeve 23 and the outer lock sleeve 24; as shown in fig. 4 and 6, the end of the inner locking arc 231 of the inner lock sleeve 23 and the end of the outer locking arc 241 of the outer lock sleeve 24 are respectively provided with a groove 25 of a U-shaped structure; the inner locking arc 231 of the inner lock sleeve 23 and the outer locking arc 241 of the outer lock sleeve 24 are also provided with a tilted rod 27 which extends outwards, and the tilted rod 27 is of a C-shaped structure; a compression spring 26 is connected between the groove of the inner lock sleeve 23 and the groove of the outer lock sleeve 24, and the ends of the warping rods 27 on the inner lock sleeve 23 and the outer lock sleeve 24 are provided with limiting balls 271, and the limiting balls 271 are in sliding fit with the sliding grooves 53 of the adjusting handle 5.
As shown in fig. 8 and 9, the rear end of the adjusting arm 21 is rotatably connected to a fixed sleeve 6; specifically, the rear end of the adjusting arm 21 is provided with a transmission tooth part 211, two adjusting arms 21 in the two adjusting modules are meshed through the transmission tooth part 211, the transmission tooth part 211 of the adjusting arm 21 is connected with the fixed sleeve 6 through a rotating shaft, and the two adjusting arms 21 are linked through the transmission tooth part 211; the side surface of the adjusting arm 21 is also connected with the fixed sleeve 6 through a torsion spring 212; the torsion spring 212 can always hold the two adjusting arms 21 with a clamping force against the middle face of the fixed sleeve 6. The two adjusting arms 21 are unfolded in a V shape and are symmetrical up and down relative to the middle position of the fixed sleeve 6.
As shown in fig. 7, the pull handle 51 of the adjusting handle 5 is movably connected with the middle part of the longitudinal support plate 3 through a movable connecting component; the movable connecting component comprises a fixed magnetic block 7, a movable magnetic block 8 and a spring 9; the pull handle 51 and the middle part of the longitudinal support plate 3 are respectively provided with a connecting groove, and the spring 9 is arranged in the connecting grooves to connect the pull handle 51 and the middle part of the longitudinal support plate 3; the fixed magnet 7 is embedded and arranged in the middle of the longitudinal support plate 3, the movable magnet 8 is embedded and arranged on the pull handle 51, and the fixed magnet 7 and the movable magnet 8 are attracted.
When the distance between the longitudinal support plate 3 and the pull handle 51 is smaller than 1cm, the magnetic attraction between the fixed magnetic block 7 and the movable magnetic block 8 is larger than the elasticity of the spring 9, so that the adjusting handle 5 can be attracted to the longitudinal support plate 3; when the distance between the longitudinal support plate 3 and the pull handle 51 is larger than 1cm, the magnetic attraction between the fixed magnetic block 7 and the movable magnetic block 8 is smaller than the elastic force of the spring 9, and the adjusting handle 5 can be pushed away from the longitudinal support plate 3 by the spring 9. Thus, pulling the pull handle 51 or pulling the pull handle 52 can cause the limit ball 271 at the end of the tilting lever 27 to slide in the chute 53, so that the tilting lever 27 is utilized to drive the inner lock sleeve 23 and the outer lock sleeve 24 to rotate relatively, the inner locking arc 231 of the inner lock sleeve 23 and the outer locking arc 241 of the outer lock sleeve 24 are separated from the inner surface of the hollowed slide way 31, and further the sliding shaft 22 and the adjusting arm 21 are driven to move, and the distance and the elevation angle of the backrest body 1 are adjusted.
The invention provides an adjustable seat, which is provided with the seat backrest, a seat base and seat feet, wherein a fixing sleeve 6 in the seat backrest is fixed on a seat upright post.
When the chair is used, the pull handle 51 is pulled to exceed 1cm, the magnetic attraction between the fixed magnetic block 7 and the movable magnetic block 8 is smaller than the elastic force of the spring 9, so that the adjusting handle 5 is pushed away from the surface of the longitudinal support plate 3 by the spring 9, the adjusting handle 5 is parallel to the longitudinal support plate 3 and cannot fall through the two springs 9 on the adjusting handle 5, meanwhile, the limiting balls 271 of the two warping rods 27 slide close to each other in the sliding grooves 53 of the adjusting handle 5, the limiting balls 271 respectively drive the inner lock sleeve 23 and the outer lock sleeve 24 to rotate relatively through the warping rods 27, namely, the inner locking arc 231 of the inner lock sleeve 23 and the outer locking arc 241 of the outer lock sleeve 24 are separated from the inner surface of the hollowed-out slide way 31, the two adjusting arms 21 are enabled to move under the action of the involute structure of the inner locking arc 231 and the outer locking arc 241, the two sliding shafts 22 are driven to slide in the hollowed-out slide way 31 of the longitudinal support plate 3, the distance between the chair body 1 and the waist of the user is adjusted, the chair is always adapted to the waist, and the comfort of the chair is improved, and the comfort is formed between the chair and the chair.
When the position of the backrest body 1 needs to be locked, the pull handle 51 of the adjusting handle 5 is pushed towards the direction close to the longitudinal support plate 3, when the distance between the longitudinal support plate 3 and the pull handle 51 of the adjusting handle 5 is smaller than 1cm, the magnetic attraction between the fixed magnetic block 7 and the movable magnetic block 8 is larger than the elastic force of the spring 9, so that the adjusting handle 5 is attracted onto the longitudinal support plate 3, the inner locking arc 231 of the inner lock sleeve 23 and the outer locking arc 241 of the outer lock sleeve 24 are respectively attached to the inner surface of the hollowed-out slideway 31, namely, the position relation between the sliding shaft 22 and the longitudinal support plate 3 is limited by the cooperation of the inner lock sleeve 23 and the outer lock sleeve 24, and the position of the backrest body 1 is fixed at the moment, so that the waist of a user can be supported.
When the elevation angle of the backrest body 1 needs to be adjusted, the arm-wrenching handle 52 on the adjusting handle 5 is wrenched towards the rear of the backrest body 1, the adjusting handle 5 rotates in an inclined mode, the sliding shaft 22 positioned below is not moved at the moment, the sliding groove 53 of the adjusting handle 5 in the adjusting module positioned above drives the limiting ball 271 to move, the inner locking arc of the inner lock sleeve 23 and the outer locking arc of the outer lock sleeve 24 which are opposite are respectively loosened with the inner surface of the hollowed-out slideway 31, so that the adjusting arm 21 and the sliding shaft 22 positioned above move to adjust the elevation angle of the backrest body 1, and the backrest can be attached to the backs of different fat and thin persons; when the handle 52 is pushed forward of the back body 1, the angle of the back body is locked.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.

Claims (7)

1. A two-axis seat back convenient for adjusting elevation angle and distance is characterized in that: comprises a backrest body and two adjusting modules which are arranged up and down;
a transverse supporting plate is fixed on the back of the backrest body, and a longitudinal supporting plate is connected to the middle of the transverse supporting plate; the upper part and the lower part of the longitudinal supporting plate are respectively provided with a hollowed-out slideway; the longitudinal supporting plate is also provided with an adjusting handle close to the hollowed-out slideway; the middle part of the adjusting handle is provided with a pull handle, and the upper part and the lower part of the adjusting handle are respectively provided with a sliding groove extending longitudinally;
each adjusting module comprises an adjusting arm and a sliding shaft, the front end of the adjusting arm is rotationally connected with the sliding shaft, the sliding shaft is inserted into a hollowed-out slideway of the longitudinal supporting plate, and an inner lock sleeve and an outer lock sleeve which are connected are rotationally connected on the sliding shaft; the inner lock sleeve is provided with an inner locking arc, the outer lock sleeve is provided with an outer locking arc, the inner locking arc and the outer locking arc are oppositely arranged and are of involute structures, and the inner locking arc of the inner lock sleeve and the outer locking arc of the outer lock sleeve are matched with the hollowed-out slideway; the inner lock sleeve and the outer lock sleeve are respectively provided with a tilted rod which extends outwards, grooves are respectively formed in the inner lock sleeve and the outer lock sleeve, a pressure spring is connected between the grooves of the inner lock sleeve and the grooves of the outer lock sleeve, and limit balls are arranged at the ends of the tilted rods of the inner lock sleeve and the outer lock sleeve and are in sliding fit with the sliding grooves of the adjusting handle; the rear end of the adjusting arm is rotationally connected with a fixed sleeve;
the pull handle of the adjusting handle is movably connected with the middle part of the longitudinal supporting plate through a movable connecting component; the movable connecting component comprises a fixed magnetic block, a movable magnetic block and a spring; the spring is connected with the middle parts of the pull handle and the longitudinal support plate; the fixed magnetic block is arranged on the middle part of the longitudinal supporting plate, the movable magnetic block is arranged on the pull handle, and the fixed magnetic block is attracted with the movable magnetic block;
pulling the pull handle or breaking the adjusting handle to enable the end part of the warping rod to slide in the chute so as to drive the inner lock sleeve and the outer lock sleeve to rotate relatively, and further drive the sliding shaft and the adjusting arm to move, and the backrest body is adjusted.
2. A two-axis easy elevation angle and distance adjustment seat back as in claim 1, wherein: the tilted rod is of a C-shaped structure.
3. A two-axis easy elevation angle and distance adjustment seat back as in claim 1, wherein: the rear end of the adjusting arm is provided with a transmission tooth part, two adjusting arms in the two adjusting modules are meshed through the transmission tooth parts, the transmission tooth parts of the adjusting arms are connected with the fixed sleeve through a rotating shaft, and the side surfaces of the adjusting arms are connected with the fixed sleeve through torsion springs.
4. A two-axis easy elevation angle and distance adjustment seat back as in claim 1, wherein: the two ends of the sliding shaft are provided with buckles to limit the sliding shaft.
5. A two-axis easy elevation angle and distance adjustment seat back as in claim 1, wherein: the upper end part of the adjusting handle is provided with a breaking handle.
6. A two-axis easy elevation angle and distance adjustment seat back as in claim 1, wherein: when the distance between the longitudinal support plate and the pull handle is smaller than 1cm, the magnetic attraction between the fixed magnetic block and the movable magnetic block is larger than the elasticity of the spring, so that the adjusting handle is attracted to the longitudinal support plate; when the distance between the longitudinal support plate and the pull handle is greater than 1cm, the magnetic attraction between the fixed magnetic block and the movable magnetic block is smaller than the elasticity of the spring, and the adjusting handle is pushed away from the longitudinal support plate by the spring.
7. An adjustable seat, characterized in that: a seat back as in any of claims 1-6, wherein the retaining sleeve is secured to the seat post.
CN202111067561.XA 2021-09-13 2021-09-13 Two-shaft type seat backrest convenient to adjust elevation angle and distance and adjustable seat Active CN113616011B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111067561.XA CN113616011B (en) 2021-09-13 2021-09-13 Two-shaft type seat backrest convenient to adjust elevation angle and distance and adjustable seat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111067561.XA CN113616011B (en) 2021-09-13 2021-09-13 Two-shaft type seat backrest convenient to adjust elevation angle and distance and adjustable seat

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CN113616011B true CN113616011B (en) 2024-01-05

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5725278A (en) * 1996-10-03 1998-03-10 Itw Plastiglide Chair back height adjuster
KR200319577Y1 (en) * 2003-04-14 2003-07-12 지-순 리아오 Mechanism for adjusting the height of the back support of chair
CN202095847U (en) * 2011-04-12 2012-01-04 泰桦家具股份有限公司 Adjustable seat device
CN206688122U (en) * 2017-04-10 2017-12-01 丽水市日峰电器有限公司 A kind of legs and feet movement adjusting device of rehabilitation machines
JP3216152U (en) * 2018-02-26 2018-05-17 泰樺家具股▲ふん▼有限公司 Adjustable curvature of chair backrest
CN208463364U (en) * 2018-02-02 2019-02-05 吕凡臻 Multifunctional chair
CN110353428A (en) * 2019-07-15 2019-10-22 浙江昊国家具有限公司 A kind of chair back fast regulating chair
CN213757519U (en) * 2020-11-26 2021-07-23 安吉山业家居有限公司 Integrated child seat with adjustable seat back

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5725278A (en) * 1996-10-03 1998-03-10 Itw Plastiglide Chair back height adjuster
KR200319577Y1 (en) * 2003-04-14 2003-07-12 지-순 리아오 Mechanism for adjusting the height of the back support of chair
CN202095847U (en) * 2011-04-12 2012-01-04 泰桦家具股份有限公司 Adjustable seat device
CN206688122U (en) * 2017-04-10 2017-12-01 丽水市日峰电器有限公司 A kind of legs and feet movement adjusting device of rehabilitation machines
CN208463364U (en) * 2018-02-02 2019-02-05 吕凡臻 Multifunctional chair
JP3216152U (en) * 2018-02-26 2018-05-17 泰樺家具股▲ふん▼有限公司 Adjustable curvature of chair backrest
CN110353428A (en) * 2019-07-15 2019-10-22 浙江昊国家具有限公司 A kind of chair back fast regulating chair
CN213757519U (en) * 2020-11-26 2021-07-23 安吉山业家居有限公司 Integrated child seat with adjustable seat back

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