CN111990817A - Seat extension support - Google Patents

Seat extension support Download PDF

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Publication number
CN111990817A
CN111990817A CN202010784533.9A CN202010784533A CN111990817A CN 111990817 A CN111990817 A CN 111990817A CN 202010784533 A CN202010784533 A CN 202010784533A CN 111990817 A CN111990817 A CN 111990817A
Authority
CN
China
Prior art keywords
connecting rod
support
rod
linkage
motor
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.)
Pending
Application number
CN202010784533.9A
Other languages
Chinese (zh)
Inventor
李晓鸿
宋刚
吕战征
李元坤
陈晨
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.)
Remacro Machinery and Technology Wujiang Co Ltd
Original Assignee
Remacro Machinery and Technology Wujiang 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 Remacro Machinery and Technology Wujiang Co Ltd filed Critical Remacro Machinery and Technology Wujiang Co Ltd
Priority to CN202010784533.9A priority Critical patent/CN111990817A/en
Publication of CN111990817A publication Critical patent/CN111990817A/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C17/00Sofas; Couches; Beds
    • A47C17/04Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C17/00Sofas; Couches; Beds
    • A47C17/04Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds
    • A47C17/16Seating furniture changeable to beds by tilting or pivoting the back-rest
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C17/00Sofas; Couches; Beds
    • A47C17/86Parts or details for beds, sofas or couches only not fully covered in a single one of the sub-groups A47C17/02, A47C17/04, A47C17/38, A47C17/52, A47C17/64, or A47C17/84; Drawers in or under beds

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

The invention discloses a seat stretching support which comprises a base, a driving mechanism and two stretching components symmetrically arranged on the base, wherein each stretching component comprises a linkage mechanism and a leg mechanism; actuating mechanism includes drive connecting rod, motor push rod and motor, the drive connecting rod with leg mechanism connects, the middle part of drive connecting rod with motor push rod connects, the motor with the base is connected, the motor is used for the drive motor push rod and drive connecting rod, the drive connecting rod is used for the drive leg mechanism, in order to change leg mechanism and link gear with the relative position of base. The linkage mechanism has the advantages of strong structural linkage, smooth conversion, simple structure of the driving mechanism, high installation efficiency, and higher pushing precision and pushing efficiency.

Description

Seat extension support
Technical Field
The invention relates to the technical field of functional sofa manufacturing, in particular to a seat stretching support.
Background
The functional sofa is a multifunctional sofa, can adjust the angle of a seat and the angle of leaning against the head, and meets the requirements of different angles of the sofa for bodies in different periods. In the using process, the gravity of the body can be uniformly dispersed on the whole seat according to the adjustment of the angles of the legs and the back, and the body is in a more natural, comfortable and relaxed state, so that the fatigue of the waist and the back can be effectively relieved, and the pressure of the whole body and mind can be released.
The drive mechanism of a multi-functional sofa or chair is an important component to achieve its different functions. The driving mechanism drives the mechanical support of the sofa or the seat to adjust the position change of different parts of the seat. Therefore, the thrust, the stroke and the driving connecting piece structure of the driving mechanism are all important factors influencing the stability and the smoothness of the seat adjustment.
Disclosure of Invention
The invention aims to solve the problems of complex driving structure, more mounting steps and low assembly efficiency of the conventional seat support.
In order to achieve the above object, the present invention provides a seat extension bracket, comprising a base, a driving mechanism and two extension assemblies symmetrically arranged on the base, wherein each extension assembly comprises a linkage mechanism and a leg mechanism;
the linkage mechanism comprises a seat frame mounting plate, a front supporting piece, a first support, a support connecting rod, a second support and a rear supporting piece, wherein the front supporting piece and the rear supporting piece are respectively connected with side frames of the base in a rotating mode;
the drive mechanism comprises a drive connecting rod, a motor push rod and a motor, the two ends of the drive connecting rod are respectively connected with the leg mechanism, the middle of the drive connecting rod is connected with the motor push rod, the motor is connected with the base, the motor is used for driving the motor push rod and the drive connecting rod, the drive connecting rod is used for driving the leg mechanism so as to change the relative positions of the leg mechanism and the linkage mechanism with the base.
Furthermore, a push rod connecting piece is arranged in the middle of the driving connecting rod and is used for being rotatably connected with the motor push rod through a rotating shaft.
Further, the base includes back frame and two side frames that set up relatively, the middle part of back frame is provided with the motor installed part, the motor installed part be used for through the pivot with the motor is connected.
Further, the leg mechanism includes a link assembly and a main foot rest;
the first connecting rod and the second connecting rod of the connecting rod assembly are connected, and a third connecting rod, a fourth connecting rod, a fifth connecting rod and a sixth connecting rod of the connecting rod assembly are sequentially connected, wherein the first connecting rod and the third connecting rod are used for being connected with the linkage mechanism, the middle parts of the first connecting rod and the second connecting rod are respectively in cross connection with the middle parts of the fourth connecting rod and the fifth connecting rod, and the second connecting rod and the sixth connecting rod are connected with the main leg rest piece;
when the connecting rod assembly is contracted to the extreme position, the height of the lowest point of the main footrest part from the supporting surface is not less than 10 cm.
Further, the leg mechanism further comprises a secondary leg rest assembly, the secondary leg rest assembly comprising a connecting rod and a secondary leg rest;
one end of the connecting rod is connected with the sixth connecting rod, the other end of the connecting rod is connected with the middle of the auxiliary footrest piece, one end of the auxiliary footrest piece is connected with the main footrest piece, the other end of the auxiliary footrest piece is used for being connected with the auxiliary footrest, and when the connecting rod assembly is contracted to the limit position, the height from the lowest point of the auxiliary footrest piece to the supporting surface is not less than 7 cm.
Furthermore, the linkage mechanism also comprises a first linkage rod, a rotating linkage rod and a second linkage rod;
one end of the first linkage rod is connected with the middle part of the front supporting piece, the other end of the first linkage rod is connected with the rotating linkage rod, the rotating linkage rod is connected with the second linkage rod, and the second linkage rod is connected with the leg mechanism.
Furthermore, a connecting rod connecting point, a mounting point, a bracket connecting point and a backrest are arranged on the second bracket;
the second support is connected with the seat frame mounting plate through a mounting point, the second support is connected with the support connecting rod through a connecting rod connecting point, the second support is connected with the rear supporting piece through a support connecting point, and the second support is connected with the backrest mechanism through a backrest connecting point.
Further, the extension assembly further comprises a backrest mechanism, wherein the backrest mechanism comprises a back mounting piece and a back linkage rod;
one end of the back linkage rod is connected with the back mounting piece, and the other end of the back linkage rod is rotatably connected with the second support through a back connecting point; the back installation part is respectively connected with the seat frame installation plate and the back linkage rod.
Further, still include handrail coupling assembling, handrail coupling assembling with the base is connected, and fix the both sides of base, handrail coupling assembling is used for being connected with the handrail frame.
The handrail connecting assembly is connected with the handrail frame, the handrail frame is supported on a supporting surface through handrail supporting feet, and the height of the handrail supporting feet is not less than 10 cm.
Compared with the prior art, the invention has the following beneficial effects:
(1) the front and rear supporting pieces of the linkage mechanism support the seat frame mounting plate, and move back and forth relative to the base under the drive of the driving mechanism and the leg mechanism, so that the positions of the legs, the seat part and the backrest of the seat are adjusted in a linkage manner in the stretching process of the seat, and the structural linkage property and the conversion smoothness are improved.
(2) The two ends of the driving connecting rod of the driving mechanism are respectively connected with the middle parts of the first connecting rods of the two oppositely arranged leg mechanisms, the structure is simple, the installation efficiency is high, the driving mechanism adopts the motor push rod and the motor with long push stroke, and the pushing precision and the pushing efficiency are higher.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical means in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of an extendable support according to embodiment 1 of the present invention;
FIG. 2 is a schematic view showing the connection of a driving mechanism according to embodiment 1 of the present invention;
FIG. 3 is an isometric view of an extended stand of embodiment 1 of the present invention in a sitting position;
FIG. 4 is a schematic view showing the connection of a second bracket according to embodiment 1 of the present invention;
fig. 5 is a side view of the extension bracket after the armrest frame is connected according to embodiment 1 of the invention.
Wherein the reference numerals are: 1-base, 11-back frame, 12-side frame, 2-drive mechanism, 21-drive link, 22-motor push rod, 23-motor, 24-push rod connector, 25-motor mount, 3-extension assembly, 4-linkage mechanism, 5-leg mechanism, 51-link assembly, 52-primary foot rest, 511-first link, 512-second link, 513-third link, 514-fourth link, 515-fifth link, 516-sixth link, 53-secondary foot rest assembly, 531-link, 532-secondary foot rest, 41-seat frame mounting plate, 42-front support, 43-first bracket, 44-bracket link, 45-second bracket, 46-first link, 46-secondary link, 47-rotating link, 48-second linkage, 49-rear support, 451-link connection point, 452-mounting point, 453-bracket connection point, 454-backrest connection point, 6-backrest mechanism, 61-backrest mounting piece, 62-back linkage, 7-armrest connection assembly, 8-backrest frame, 9-armrest frame, 10-armrest support foot.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In addition, in the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1
As shown in fig. 1-4, an embodiment 1 of the present invention provides a seat extension bracket, which includes a base 1, a driving mechanism 2, and two extension assemblies 3 symmetrically disposed on the base 1, wherein each extension assembly 3 includes a linkage mechanism 4 and a leg mechanism 5;
the link gear 4 includes a seat frame mounting plate 41, a front support member 42, a first support 43, a support link 44, a second support 45 and a rear support member 49, the front support member 42 and the rear support member 49 are respectively connected with the side frame 12 of the base 1 in a rotating manner, one end of the first support 43 is connected with the front support member 42, the other end of the first support 43 is connected with the seat frame mounting plate 41, one end of the support link 44 is connected with the middle part of the first support 43, the other end of the support link is connected with the second support 45, the second support 45 is connected with the rear support member 49, and the seat frame mounting plate 41 is connected with the leg mechanism 5.
Actuating mechanism 2 includes drive connecting rod 21, motor push rod 22 and motor 23, drive connecting rod 21's both ends respectively with leg mechanism 5 connects, drive connecting rod 21's middle part with motor push rod 22 connects, motor 23 with base 1 connects, motor 23 is used for the drive motor push rod 22 and drive connecting rod 21, drive connecting rod 21 is used for the drive leg mechanism 5, in order to change leg mechanism 5 and link gear 4 with base 1's relative position.
Specifically, a push rod connecting piece 24 is arranged in the middle of the driving connecting rod 21, and the push rod connecting piece 24 is used for being rotatably connected with the motor push rod 22 through a rotating shaft. In this embodiment, the driving link 21 has connecting pieces at both ends, and the driving link 21 is riveted with the third link 513 of the leg mechanism through the connecting pieces at both ends, so that the assembling efficiency is high. The push rod connecting piece 24 is fixed in the middle of the driving connecting rod, and the protruding part is provided with a connecting through hole and is connected with the end part of the motor push rod through a rotating shaft, a bolt, a stud and the like which are connected in a rotatable mode.
Specifically, base 1 includes back frame 11 and two relative side frames 12 that set up, the middle part of back frame 11 is provided with motor installed part 25, motor installed part 25 be used for through the pivot with motor 23 is connected. Specifically, one end of the motor mounting member 25 is fixed to the rear frame, and the other end protrudes to form a bent U-shaped connecting portion, which is provided with a connecting through hole, and is connected to the housing of the motor through a rotating shaft, a bolt, a stud and the like which are rotatably connected.
In particular, the leg mechanism 5 comprises a linkage assembly 51 and a main footrest 52; the first link 511 and the second link 512 of the link assembly 51 are connected, the third link 513, the fourth link 514, the fifth link 515 and the sixth link 516 of the link assembly 51 are sequentially connected, wherein the first link 511 and the third link 513 are used for being connected with the linkage mechanism 4, the middle parts of the first link 511 and the second link 512 are respectively connected with the middle parts of the fourth link 514 and the fifth link 515 in a crossing manner, and the second link 512 and the sixth link 516 are connected with the main footrest 52;
when the connecting rod assembly 51 is retracted to the extreme position, the height of the lowest point of the main foot rest 52 from the support surface is not less than 10cm, preferably 13 cm. In particular, the main footrest is used for connecting with a main footrest, and in the embodiment of the invention, the height from the lower edge of the main footrest to the supporting surface is preferably 13 cm.
In particular, said leg mechanism 5 further comprises a secondary leg rest assembly 53, said secondary leg rest assembly 53 comprising a connecting rod 531 and a secondary leg rest 532; one end of the auxiliary footrest piece 532 is connected with the main footrest piece 52, the other end of the auxiliary footrest piece 532 is used for being connected with an auxiliary footrest, one end of the connecting rod 531 is connected with the sixth connecting rod 516, and the other end of the connecting rod 531 is connected with the middle part of the auxiliary footrest piece 532. Specifically, when the connecting rod assembly is contracted to the extreme position, the height of the lowest point of the auxiliary footrest part from the supporting surface is not less than 7cm, the surface where the auxiliary footrest part is connected with the auxiliary footrest is an installation surface, after the auxiliary footrest part is completely contracted, the installation surface of the auxiliary footrest part is downward opposite to the supporting surface, and preferably, the height of the installation surface of the auxiliary footrest part from the supporting surface is 9 cm.
Specifically, the linkage mechanism 4 further includes a first linkage rod 46, a rotating linkage rod 47 and a second linkage rod 48; one end of the first linkage rod 46 is connected with the middle part of the front support member 42, the other end is connected with the rotation linkage rod 47, the rotation linkage rod 47 is connected with the second linkage rod 48, and the second linkage rod 48 is connected with the leg mechanism 5.
Preferably, in some embodiments, a stabilizer bar is disposed between the two front supports 42 and the two rear supports 49, and the stabilizer bar is used to reinforce the strength of the support, prevent deformation, and improve the stability of the seat.
Specifically, the second bracket 45 is provided with a connecting rod connecting point 451, a mounting point 452, a bracket connecting point 453 and a backrest connecting point 454; the second bracket 45 is connected to the seat frame mounting plate 41 via a mounting point 452, the second bracket 45 is connected to the bracket link 44 via a link connection point 451, the second bracket 45 is connected to the rear support via a bracket connection point 453, and the second bracket 45 is connected to the backrest mechanism 6 via a backrest connection point 454.
Specifically, the extension assembly 3 further comprises a backrest mechanism 6, wherein the backrest mechanism 6 comprises a backrest mounting part 61 and a backrest linkage 62; one end of the back linkage 62 is connected with the back mounting part 61, and the other end of the back linkage 62 is rotatably connected with the second bracket 45 through a back connection point 454; the back mounting member 61 is connected to the seat frame mounting plate 41 and the back linkage 62. The two ends of the back linkage rod are respectively connected with the back installation part 61 and the second support 45 in a rotating mode, and the back linkage rod controls the rotating angle of the back installation part 61. The backrest mechanism 6 is used for supporting the seat back frame and the soft bag.
Specifically, the handrail connecting assembly 7 is further included, the handrail connecting assembly 7 is connected with the base 1 and fixed on one side or two sides of the base 1, and the handrail connecting assembly 7 is used for being connected with a handrail frame. In this embodiment, the handrail connecting assembly 7 comprises a connecting plate 71 and a mounting bracket 72, wherein the mounting bracket 72 has an L-shaped structure, and the mounting bracket 72 is connected with the side frame 12 through the connecting plate 71. The mounting bracket 72 is used to connect with the armrest frame.
As shown in fig. 5, in particular, the armrest frame 9 is connected to the armrest connection assembly 7, the armrest frame 9 is supported on a supporting surface by armrest legs 10, and the height of the armrest legs 10 is not less than 10 cm. Preferably, the height of the armrest foot 10 is 13 cm. Preferably, in the present embodiment, the height of the armrest foot 10 is the same as the height of the lower edge of the main footrest to the support surface.
In some embodiments, a seat frame assembly may be further disposed on the seat frame mounting plate 41 for supporting the seat cushion of the chair. In this embodiment, the seat frame assembly is connected with the seat frame mounting plate, and the seat frame assembly includes a U-shaped frame and a connecting rod connected with both ends of the U-shaped frame, respectively, wherein the connecting rod is disposed behind the backrest mechanism. The seat frame assembly moves back and forth along with the seat frame mounting plate. Can also set up the elastic support pad on the seat frame subassembly, the elastic support pad generally is the spring cushion that serpentine spring constitutes, and both ends are connected with the front end and the rear end of seat frame subassembly respectively through the couple.
The front and rear supporting pieces of the linkage mechanism support the seat frame mounting plate, and move back and forth relative to the base under the drive of the driving mechanism and the leg mechanism, so that the positions of the legs, the seat part and the backrest of the seat are adjusted in a linkage manner in the stretching process of the seat, and the structural linkage property and the conversion smoothness are improved. The two ends of the driving connecting rod of the driving mechanism are respectively connected with the middle parts of the first connecting rods of the two oppositely arranged leg mechanisms, the structure is simple, the installation efficiency is high, the driving mechanism adopts the motor push rod and the motor with long push stroke, and the pushing precision and the pushing efficiency are higher.
In this embodiment, the direction in which the leg mechanism is extended is defined as front, and the direction in which the leg mechanism is retracted is defined as rear. The extension bracket provided by the embodiment of the invention can be adjusted among the positions of a sitting posture, an extension posture and a lying posture. In the sitting position, the leg mechanism is retracted below the seat frame assembly, and the backrest mechanism is kept basically upright; when the stretching bracket is adjusted to the stretching posture from the sitting posture, the driving mechanism drives the connecting rod assembly to stretch forwards and upwards relative to the base, and simultaneously drives the linkage mechanism and the backrest mechanism to move forwards relative to the base; when the lying posture state is adjusted from the stretching posture, the leg mechanism is continuously lifted upwards, so that the backrest mechanism rotates backwards to stretch, and the lying posture state is realized.
In some embodiments, the seats of the present invention may also be assembled side-by-side by assembly of identical seat structures to form a ganged seat.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A seat extension bracket is characterized by comprising a base (1), a driving mechanism (2) and two extension components (3) symmetrically arranged on the base (1), wherein each extension component (3) comprises a linkage mechanism (4) and a leg mechanism (5);
the linkage mechanism (4) comprises a seat frame mounting plate (41), a front supporting piece (42), a first support (43), a support connecting rod (44), a second support (45) and a rear supporting piece (49), wherein the front supporting piece (42) and the rear supporting piece (49) are respectively in rotary connection with a side frame (12) of the base (1), one end of the first support (43) is connected with the front supporting piece (42), the other end of the first support (43) is connected with the seat frame mounting plate (41), one end of the support connecting rod (44) is connected with the middle of the first support (43), the other end of the support connecting rod is connected with the second support (45), the second support (45) is connected with the rear supporting piece (49), and the seat frame mounting plate (41) is connected with the leg mechanism (5);
actuating mechanism (2) are including drive connecting rod (21), motor push rod (22) and motor (23), drive connecting rod (21) with leg mechanism (5) are connected, the middle part of drive connecting rod (21) with motor push rod (22) are connected, motor (23) with base (1) are connected, motor (23) are used for the drive motor push rod (22) and drive connecting rod (21), drive connecting rod (21) are used for the drive leg mechanism (5), in order to change leg mechanism (5) and link gear (4) with the relative position of base (1).
2. A seat extension support according to claim 1, wherein a push rod connection (24) is arranged in the middle of the drive link (21), said push rod connection (24) being adapted to be rotatably connected to the motor push rod (22) via a shaft.
3. A seat extension support according to claim 1, wherein the base (1) comprises a rear frame (11) and two oppositely arranged side frames (12), a motor mounting member (25) is arranged in the middle of the rear frame (11), and the motor mounting member (25) is used for connecting with the motor (23) through a rotating shaft.
4. A seat extension support according to claim 1, wherein said leg mechanism (5) comprises a linkage assembly (51) and a main footrest (52);
a first connecting rod (511) of the connecting rod assembly (51) is connected with a second connecting rod (512), a third connecting rod (513), a fourth connecting rod (514), a fifth connecting rod (515) and a sixth connecting rod (516) of the connecting rod assembly (51) are sequentially connected, wherein the first connecting rod (511) and the third connecting rod (513) are used for being connected with the linkage mechanism (4), the middle parts of the first connecting rod (511) and the second connecting rod (512) are respectively connected with the middle parts of the fourth connecting rod (514) and the fifth connecting rod (515) in a cross mode, and the second connecting rod (512) and the sixth connecting rod (516) are connected with the main leg rest (52);
when the connecting rod assembly (51) is contracted to the extreme position, the height of the lowest point of the main foot rest (52) from the supporting surface is not less than 10 cm.
5. Seat extension support according to claim 4, characterized in that said leg mechanism (5) further comprises a secondary leg rest assembly (53), said secondary leg rest assembly (53) comprising a connecting rod (531) and a secondary foot rest (532);
one end of the connecting rod (531) is connected with the sixth connecting rod (516), the other end of the connecting rod (531) is connected with the middle of the auxiliary foot rest piece (532), one end of the auxiliary foot rest piece (532) is connected with the main foot rest piece (52), the other end of the auxiliary foot rest piece (532) is used for being connected with the auxiliary foot rest plate, and when the connecting rod assembly (51) is contracted to the limit position, the height of the lowest point of the auxiliary foot rest piece (532) from the supporting surface is not less than 7 cm.
6. A seat extension support according to claim 1, wherein said linkage (4) further comprises a first linkage rod (46), a rotating linkage rod (47) and a second linkage rod (48);
one end of the first linkage rod (46) is connected with the middle part of the front supporting piece (42), the other end of the first linkage rod is connected with the rotating linkage rod (47), the rotating linkage rod (47) is connected with the second linkage rod (48), and the second linkage rod (48) is connected with the leg mechanism (5).
7. A seat extension frame according to claim 1, wherein the second frame (45) is provided with a link connection point (451), a mounting point (452), a frame connection point (453) and a backrest connection point (454);
the second support (45) is connected with the seat frame mounting plate (41) through a mounting point (452), the second support (45) is connected with the support connecting rod (44) through a connecting rod connecting point (451), the second support (45) is connected with a rear support piece through a support connecting point (453), and the second support (45) is connected with a backrest mechanism (6) through a backrest connecting point (454).
8. A seat extension support according to claim 1, wherein said extension assembly (3) further comprises a backrest mechanism (6), said backrest mechanism (6) comprising a back mount (61) and a back trace (62);
one end of the back linkage rod (62) is connected with the back mounting piece (61), and the other end of the back linkage rod (62) is rotatably connected with the second bracket (45) through a back connection point (454); the back installation piece (61) is respectively connected with the seat frame installation plate (41) and the back linkage rod (62).
9. A seat extension support according to claim 1, further comprising an armrest connection assembly (7), wherein the armrest connection assembly (7) is connected to the base (1) and is fixed to one or both sides of the base (1).
10. A seat extension support according to claim 9, further comprising an armrest frame (9), wherein the armrest frame (9) is connected to the armrest connection assembly (7), wherein the armrest frame (9) is supported on a support surface by armrest feet (10), and wherein the height of the armrest feet (10) is not less than 10 cm.
CN202010784533.9A 2020-08-06 2020-08-06 Seat extension support Pending CN111990817A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010784533.9A CN111990817A (en) 2020-08-06 2020-08-06 Seat extension support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010784533.9A CN111990817A (en) 2020-08-06 2020-08-06 Seat extension support

Publications (1)

Publication Number Publication Date
CN111990817A true CN111990817A (en) 2020-11-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010784533.9A Pending CN111990817A (en) 2020-08-06 2020-08-06 Seat extension support

Country Status (1)

Country Link
CN (1) CN111990817A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022183997A1 (en) * 2021-03-02 2022-09-09 德沃康科技集团有限公司 Seat bracket and seat

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022183997A1 (en) * 2021-03-02 2022-09-09 德沃康科技集团有限公司 Seat bracket and seat

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