CN108016330B - Folding chair - Google Patents
Folding chair Download PDFInfo
- Publication number
- CN108016330B CN108016330B CN201711378889.7A CN201711378889A CN108016330B CN 108016330 B CN108016330 B CN 108016330B CN 201711378889 A CN201711378889 A CN 201711378889A CN 108016330 B CN108016330 B CN 108016330B
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- Prior art keywords
- framework
- connecting rod
- seat cushion
- sliding
- plate
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- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 13
- 230000002159 abnormal effect Effects 0.000 abstract description 7
- 230000007547 defect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/30—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats
- B60N2/3002—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements
- B60N2/302—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements by translation only
- B60N2/3027—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements by translation only along vertical axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/30—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats
- B60N2/3038—Cushion movements
- B60N2/304—Cushion movements by rotation only
- B60N2/3045—Cushion movements by rotation only about transversal axis
- B60N2/3047—Cushion movements by rotation only about transversal axis the cushion being hinged at the back-rest
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
- B60N2002/2204—Adjustable back-rest height or length
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses a folding seat, which is characterized by comprising a base, a backrest framework arranged on the base and a seat cushion framework arranged on the lower side of the backrest hanging frame, wherein the backrest framework is arranged on the base in a sliding manner and is driven to slide up and down in the vertical direction by a lifting device; the backrest framework is provided with a rotating device for driving the seat cushion framework to rotate along a horizontal rotating shaft in the vertical direction; the lower side of the seat cushion framework is hinged with a connecting rod mechanism for supporting the seat cushion framework when the seat cushion framework rotates to be horizontal. Through the link mechanism that sets up at cushion skeleton lower surface, when cushion skeleton rotates to the level, link mechanism supports it subaerial, simultaneously, at the rotation in-process, the cushion skeleton produces the pulling force to link mechanism for the abnormal sound that produces when contact between link mechanism and the ground is less.
Description
Technical Field
The present invention relates to a seat, and more particularly, to a folding seat.
Background
The folding seat is suitable for the automobile industry, is multi-layered on business cars, and has the advantages of small storage space, electric folding and the like.
The existing folding seat on the market is complex in structure, the overall weight of the seat is large, the quality performance of the seat used for a long time is unstable, and the folding seat can be divided into two types according to different stress modes when being opened: the other type of the support is supported by a lever cantilever structure seat; the two states have corresponding defects, firstly, when the seat is opened to be contacted with the ground, the weight of the seat is larger, and the structure is also in a weightless state for a short time due to the defect of the seat, so that the support part collides with the ground and is abnormal in sound, the seat is used in a closed environment in a vehicle, the collision sound is larger, the seat is not easily accepted by a user, and other parts are possibly damaged; secondly, because the cantilever structure is stressed, after the seat is opened, under the normal use condition, the weight of the seat and the weight of an occupant are all gathered at the rotation centers of the backrest and the seat, and no external auxiliary force exists.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a folding seat, which is characterized in that the connecting rod mechanism is arranged on the lower surface of the seat cushion framework, when the seat cushion framework rotates to be horizontal, the connecting rod mechanism supports the seat cushion framework on the ground, and meanwhile, in the rotating process, the seat cushion framework generates a pulling force on the connecting rod mechanism, so that abnormal sound generated when the connecting rod mechanism contacts with the ground is smaller.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the folding seat comprises a base, a backrest framework arranged on the base and a seat cushion framework arranged on the lower side of a backrest hanging frame, wherein the backrest framework is arranged on the base in a sliding manner and is driven to slide up and down in the vertical direction by a lifting device; the backrest framework is provided with a rotating device for driving the seat cushion framework to rotate along a horizontal rotating shaft in the vertical direction; the lower side of the seat cushion framework is hinged with a connecting rod mechanism for supporting the seat cushion framework when the seat cushion framework rotates to be horizontal.
Through adopting the technical scheme, the backrest framework is lifted and adjusted through the lifting device, when the backrest framework is used, the backrest framework can be lifted upwards for a person to depend on, and when the backrest framework is not used, the backrest framework is slid downwards, so that the vertical height of the seat can be reduced; the lower side of the seat cushion framework is hinged with the connecting rod mechanism, when the seat cushion framework rotates to be horizontal, the lower side of the seat cushion framework can be supported, and meanwhile, in the rotating process, the seat cushion framework generates a tensile force on the connecting rod mechanism, so that abnormal sound generated when the connecting rod mechanism contacts with the ground is small.
Preferably, the rotating device comprises a screw lifter rotatably arranged on the backrest framework and a connecting plate, one end of the connecting plate is hinged with the lifting plate of the screw lifter, and the other end of the connecting plate is fixedly connected with the horizontal rotating shaft.
Through adopting above-mentioned technical scheme, drive the connecting plate through the screw lifter that sets up and rotate from top to bottom, the connecting plate rotates the in-process and drives horizontal pivot and rotate to realize the rotation of seatpad skeleton, in the course of the work, through horizontal pivot transmission, comparatively effectually reduced the error amount, at the effort that rotates the in-process, seatpad skeleton all receives the connecting plate, thereby, when rotating to horizontal position, when contact between link mechanism and the ground, the effort is less, and produced abnormal sound is less.
Preferably, the link mechanism comprises two support plates fixedly arranged on the backrest framework and close to one side of the seat cushion framework, a support shaft fixedly connected with one end of the backrest framework in the two support plates, a first link rod rotatably connected with the support shaft and below the seat cushion framework, and a second link rod hinged with one end of the first link rod away from the support shaft, wherein one end of the second link rod away from the first link rod is hinged with one end of the seat cushion framework away from the horizontal rotating shaft.
Through adopting above-mentioned technical scheme, through connecting rod one and connecting rod two that set up, after seat cushion skeleton rotates to the level, connecting rod one level support subaerial, supports the seat cushion skeleton to comparatively effectually reduced the bearing pressure of horizontal pivot, make the bearing of seat cushion skeleton can be stronger.
Preferably, the first connecting rod is L-shaped, and when the seat cushion framework rotates to be horizontal, one end of the first connecting rod, which is close to the supporting shaft, is in a vertical state, and the other end of the first connecting rod is in a horizontal state.
Through adopting above-mentioned technical scheme, through being the connecting rod first that sets up to "L" shape, when the seatpad skeleton rotated to horizontal position, connecting rod one-to-one keeps vertical, and one side keeps the level, supports the seatpad skeleton with connecting rod second.
Preferably, a lower shield is fixedly arranged on one side, far away from the supporting shaft, of the first connecting rod, and an upper shield is fixedly arranged on the outer side of the second connecting rod.
Through adopting above-mentioned technical scheme, through setting up upper shield and lower guard shield, cover link mechanism and establish to support on ground in the outside.
Preferably, a headrest mounting plate is arranged on the upper side of the backrest framework and connected to the rotating device through a sliding assembly, so that the headrest mounting plate can slide up and down along the vertical direction.
Through adopting above-mentioned technical scheme, through the headrest mounting panel that sets up, can fix the headrest, when taking the seat, upwards slide the headrest mounting panel through the slip subassembly for passenger's head can the butt on the headrest mounting panel, further, when the discomfort, can pack up the headrest mounting panel, reduce at the vertical height of seat.
Preferably, the sliding component comprises a guide block fixedly arranged on the backrest framework, a guide pillar arranged on the guide block in a sliding manner along the vertical direction, a sliding plate with one end hinged with the connecting plate and the other end hinged with the guide pillar, a concave plate fixedly arranged at the upper end of the guide pillar, and a support rod fixedly arranged at the upper end of the concave plate and supporting the headrest mounting plate.
Through adopting above-mentioned technical scheme, at connecting plate pivoted in-process, drive sliding plate and slide from top to bottom, through the linkage of guide arm, concave plate, bracing piece, drive headrest mounting panel and slide from top to bottom to when making the seatpad skeleton open, headrest mounting panel synchronous upward movement realizes the synchronous motion of headrest mounting panel and seatpad skeleton.
Preferably, the lifting device comprises sliding rails fixed on the base at two vertical sides, sliding plates which are arranged on the sliding rails in a sliding manner and fixedly connected with the backrest framework, and a driving motor which is fixed on the base and drives the sliding plates to slide up and down through a transmission assembly.
Through adopting above-mentioned technical scheme, slide board and driving motor through the slide rail that sets up, slide setting on the slide rail can drive back skeleton and slide from top to bottom.
Preferably, the transmission assembly comprises a sliding block fixed on the sliding plate, a screw rod penetrating through the sliding block and in threaded connection with the sliding block, and a first bevel gear and a second bevel gear which are sleeved on the end part of the output shaft of the driving motor and the screw rod and meshed with each other.
Through adopting above-mentioned technical scheme, driving motor rotates and drives the lead screw through the intermeshing of two bevel gears and rotate, and the lead screw rotates and drives the slider and slide from top to bottom along the lead screw to realize the oscilaltion to back skeleton.
Preferably, the upper end and the lower end of the sliding rail are respectively fixedly provided with a supporting block at the two horizontal sides of the screw rod, the supporting blocks are provided with limiting grooves, the screw rod is sleeved with supporting wheels, and the supporting wheels are clamped in the limiting grooves.
Through adopting above-mentioned technical scheme, through the supporting wheel that sets up, can support the both ends of lead screw for the lead screw is at pivoted in-process, and the bevel gear receives the axial force of lead screw less, thereby makes the pressure that the bevel gear bore less, and life is longer.
In summary, the invention has the following beneficial effects:
1. the backrest framework is lifted and adjusted through the lifting device, so that the backrest framework can be lifted upwards for a person to lean on when the chair is used, and the backrest framework can be slid downwards when the chair is not used, so that the vertical height of the chair can be reduced; the lower side of the seat cushion framework is hinged with the connecting rod mechanism, when the seat cushion framework rotates to be horizontal, the lower side of the seat cushion framework can be supported, and meanwhile, in the rotating process, the seat cushion framework generates a tensile force on the connecting rod mechanism, so that abnormal sound generated when the connecting rod mechanism contacts with the ground is small;
2. through the connecting rod I and the connecting rod II, after the seat cushion framework rotates to be horizontal, the connecting rod I is horizontally supported on the ground to support the seat cushion framework, so that the bearing pressure of the horizontal rotating shaft is effectively reduced, and the bearing capacity of the seat cushion framework can be stronger;
3. through the headrest mounting panel that sets up, can fix the headrest, when taking the seat, upwards slide the headrest mounting panel through the slip subassembly for passenger's head can the butt on the headrest mounting panel, further, when the discomfort, can pack up the headrest mounting panel, reduce the vertical height at the seat.
Drawings
FIG. 1 is a schematic view of the overall structure of a folding seat;
FIG. 2 is a schematic view of a protruding slide rail of a folding seat;
FIG. 3 is a schematic view of a protruding drive assembly in a folding seat;
FIG. 4 is a cross-sectional view of the protruding lead screw and slider cooperation in a folding seat;
FIG. 5 is a schematic view of the connection of the protruding seat cushion frame to the back frame in a folding seat;
FIG. 6 is a schematic view of a protruding turning device in a folding seat;
FIG. 7 is a schematic view of a protruding linkage in a folding seat;
fig. 8 is a state diagram when closed in the folding seat.
Reference numerals: 1. a base; 11. a bottom plate; 12. a back plate; 2. a back rest frame; 21. a mounting base; 22. a connection port; 23. a sliding interface; 3. a seat cushion framework; 31. a horizontal rotating shaft; 32. a link mechanism; 321. a support plate; 3211. a support shaft; 322. a first connecting rod; 3221. a lower shield; 323. a second connecting rod; 3231. an upper shield; 4. a headrest fixing plate; 41. a slip-on assembly; 411. a guide block; 412. a guide post; 413. a sliding plate; 414. a concave plate; 415. a support rod; 5. a lifting device; 51. a slide rail; 511. a chute; 52. a slide plate; 521. a plug board; 53. a driving motor; 54. a transmission assembly; 541. a slide block; 542. a screw rod; 543. bevel gears I; 544. bevel gears II; 545. a support block; 5451. a limit groove; 5452. a support wheel; 6. a rotating device; 61. a screw lifter; 611. a mounting frame; 612. a screw; 613. a lifting plate; 62. and (5) connecting a plate.
Detailed Description
The present invention will be described in further detail below with reference to the drawings, wherein like parts are designated by like reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower", "bottom" and "top" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
The utility model provides a foldable seat, as shown in fig. 1, includes base 1, the back skeleton 2 that slides on base 1 and sets up, rotates the seatpad skeleton 3 that sets up in back skeleton 2 downside, and sets up the headrest fixed plate 4 of back skeleton 2 upside, wherein, seatpad skeleton 3 can rotate 90 degrees along the horizontal axis for the seatpad rotates to the open state and supplies the passenger to take or vertical folding state in order to reduce space occupation ratio.
The base 1 is L-shaped, comprises a bottom plate 11 horizontally arranged and a back plate 12 perpendicular to the bottom plate 11, wherein the back plate 12 is inclined on one side close to the bottom plate 11, and the backrest framework 2 is arranged on the back plate in a sliding manner, so that the backrest framework 2 is in an inclined state, and a person can lean against the backrest framework 2 in a leaning manner when sitting on the seat, and the seat is more comfortable.
The backrest frame 2 is slidably connected to the backboard 12 through the lifting device 5 arranged on the backboard 12, and the lifting device 5 can drive the backrest frame 2 to slide up and down along the backboard 12, so that the backrest frame 2 slides upwards when a seat is taken, the whole backrest height is more suitable for a passenger to depend on, and the backrest frame 2 slides downwards when the seat is not used, so that the whole seat height is lower, the height of the whole seat is reduced, and the space occupation rate is reduced.
As shown in fig. 1 and 2, the lifting device 5 includes a sliding rail 51 fixed on two vertical sides of the back plate 12, a sliding plate 52 disposed on the sliding rail 51 and sliding up and down, and a driving motor 53 driving the sliding plate 52 to slide up and down, wherein the sliding rail 51 is in a "U" shape, an opening faces one side far away from the back plate 12, two vertical sides of the sliding rail 51 are bent inwards to form a chute 511 in an inverted "U" shape, the sliding plate 52 is in a "U" shape, and two vertical sides are bent outwards to form a plug board 521, and the plug board 521 is clamped in the chute 511 to slide up and down, so that the sliding plate 52 can only slide up and down along the length direction of the sliding rail 51.
As shown in fig. 3 and 4, a driving motor 53 is fixedly provided at the bottom of the back plate 12, and drives the sliding plate 52 to slide up and down through a transmission assembly 54 provided.
The transmission assembly 54 comprises a sliding block 541 fixed on the inner side of the sliding plate 52, a lead screw 542 penetrating through the sliding block 541 and in threaded connection with the sliding block 541, and a first bevel gear 543 and a second bevel gear 544 sleeved on the end part of the output shaft of the driving motor 53 and the lower end of the lead screw 542, wherein the first bevel gear 543 and the second bevel gear 544 are meshed with each other, so that the driving motor 53 rotates to drive the lead screw 542 to rotate, and the sliding plate 52 slides up and down.
Meanwhile, in the process that the screw rod 542 moves up and down, the axial force borne by the bevel gear II 544 is larger, in order to reduce the axial force borne by the screw rod, two supporting blocks 545 are fixedly arranged on the inner sides of two ends of the sliding rail 51, limiting grooves 5451 are formed in the supporting blocks 545, supporting wheels 5452 are fixedly sleeved on the screw rod 542, two sides, close to the supporting blocks 545, of the supporting wheels 5452 are clamped in the limiting grooves 5451, and accordingly acting force between the bevel gear I543 and the bevel gear II 544 is reduced through the supporting wheels 5452 in the rotating process of the screw rod 542.
The slide plate 52 drives the back frame 2 to slide up and down in the process of sliding up and down.
As shown in fig. 5, two mounting seats 21 are fixed at intervals on one side far away from the back plate 12 and on the lower side of the back frame 2, a horizontal rotating shaft 31 is rotatably arranged between the two mounting seats 21, the seat cushion frame 3 is fixedly connected to two ends of the horizontal rotating shaft 31, and the seat cushion frame 3 can be driven to rotate by the rotation of the horizontal rotating shaft 31.
As shown in fig. 5 and 6, the backrest frame 2 is provided with a rotation device 6, and the rotation device 6 can drive the horizontal rotation shaft 31 to rotate.
The rotating device 6 is arranged on one side of the backrest frame 2, which is close to the backboard 12, and comprises a screw lifter 61 and a connecting plate 62, wherein the screw lifter 61 is arranged on the backrest frame 2, the connecting plate 62 is rotationally connected with the screw lifter 61, the connecting port 22 is arranged on the backrest frame 2, the lower end of the connecting plate 62 penetrates through the connecting port 22 and is fixedly connected to the horizontal rotating shaft 31, and therefore, when the connecting plate 62 is driven by the screw lifter 61 to rotate up and down, the horizontal rotating shaft 31 is driven to rotate.
The installation frame 611 is fixedly arranged on one side, close to the backboard 12, of the backrest framework 2, the screw rod lifter 61 is rotatably connected to the installation frame 611 through a pin shaft, the screw rod 612 of the screw rod lifter 61 is positioned on one side, close to the horizontal rotating shaft 31, the screw rod 612 of the screw rod lifter 61 is in threaded sleeve joint with the lifting plate 613, the lower end of the lifting plate 613 is hinged with the connecting plate 62, and accordingly the lifting plate 613 is driven to move up and down through rotation of the screw rod 612 of the screw rod lifter 61, and accordingly the connecting plate 62 and the horizontal rotating shaft 31 are driven to rotate, and opening and retracting of the seat cushion framework 3 are achieved.
Further, a plurality of vertical adjusting holes 6131 are formed in the lower end of the lifting plate 613, and the connecting plate 62 is connected to different adjusting holes 6131, so that the degree of downward rotation of the connecting plate 62 can be adjusted, and the rotation angle of the seat cushion framework 3 can be adjusted.
As shown in fig. 5 and 7, the seat cushion frame 3 is supported only by the connection at the horizontal rotation shaft 31 when rotated to the horizontal position, and has poor bearing capacity, so that passengers sit on the seat cushion frame 3 more safely in order to improve the bearing capacity thereof, and a link mechanism 32 is provided at the lower side of the seat cushion frame 3 to support the seat cushion frame 3 when opened.
The link mechanism 32 includes a support plate 321 fixedly arranged on one side of the back frame 2 close to the horizontal rotation shaft 31, a first link 322 rotatably connected to one end of the support plate 321 far away from the back frame 2, and a second link 323 having one end hinged to the first link 322 and the other end hinged to the seat cushion frame 3.
The two support plates 321 are fixed on the backrest framework 2 at intervals between the two mounting seats 21, the support plates 321 are L-shaped, and one ends of the two support plates 321 far away from the backrest framework 2 are fixedly connected with support shafts 3211; the first connecting rod 322 is L-shaped, one end of the first connecting rod is rotatably connected to the supporting shaft 3211, the other end of the first connecting rod is hinged to the second connecting rod 323, and the second connecting rod 323 is hinged to one end, far away from the horizontal rotating shaft 31, of the seat cushion framework 3, so that when the seat cushion framework 3 rotates to be horizontal, one side of the first connecting rod 322 is in a vertical state, and the other side of the first connecting rod is in a horizontal state, and the seat cushion framework 3 is supported.
As shown in fig. 7 and 8, further, in order to make the seat cushion frame 3 more stable, safe and comfortable, a lower shield 3221 is fixedly arranged on a section of the first connecting rod 322 close to the second connecting rod 323, and an upper shield 3231 is fixedly arranged on one side of the second connecting rod 323 far away from the supporting shaft 3211, so that the lower shield 3221 and the upper shield 3231 wrap the first connecting rod 322 and the second connecting rod 323 by the outer side, when the seat cushion frame 3 rotates to be horizontal, the lower shield 3221 horizontally abuts against the ground, and meanwhile, one side of the upper shield 3231 abuts against the ground, so that the seat cushion frame is more stable.
As shown in fig. 5 and 6, the headrest fixing plate 4 is supported on the upper side of the backrest frame 2 through the sliding connection assembly 41, the sliding connection assembly 41 comprises a guide block 411 fixed on one side of the backrest frame 2 close to the mounting frame 611, a guide post 412 sliding connected in the guide block 411 in an up-and-down manner, a sliding connection plate 413 hinged with the guide post 412 at one end and the connecting plate 62 at the other end, a concave plate 414 horizontally fixed on the upper end of the guide post 412, and a support rod 415 fixedly arranged on the upper side of the concave plate 414, wherein two sliding interfaces 23 are arranged on the upper side of the backrest frame 2 at intervals, two side edges of the concave plate 414 slide out from the sliding interfaces 23 and extend to one side of the backrest frame 2 close to the seat cushion frame 3, and then the headrest fixing plate 4 is fixed through the support rod 415.
When the seat cushion is required to be closed, the screw lifter 61 drives the connecting plate 62 to move downwards, so that the headrest fixing plate 4 moves downwards, and the seat cushion framework 3 is closed.
When closed, the backrest framework 2 and the headrest fixing plate 4 move downwards, so that the vertical height of the seat can be effectively reduced, and the occupied space is reduced.
When the seat is taken, the screw 612 of the screw lifter 61 is moved upwards, so that the connecting plate 62 is rotated upwards, and the connecting plate 62 drives the sliding plate 413 to be rotated upwards, so that the headrest fixing plate 4 is moved upwards synchronously while the seat cushion frame 3 is opened, and thus a passenger can sit on the seat while the headrest fixing plate 4 is positioned on the head.
When the seat is taken by opening the confession person from the state of packing up, the seatpad skeleton 3 rotates 90 degrees angles to the horizontal side by vertical side, in the rotation in-process, drive seatpad skeleton 3 through the mode of rotating the connection and accomplish and rotate, comparatively effectually reduced the clearance volume on the initiative arm, simultaneously, link mechanism 32 receives seatpad skeleton 3 pulling force along with seatpad skeleton 3 in-process of rotating downwards, make link mechanism 32 when contacting with ground, the effort that ground received is very little, collision abnormal sound phenomenon can not appear, thereby when supporting seatpad skeleton 3, use experience has been improved.
Claims (8)
1. The utility model provides a folding seat, includes base (1), establishes back skeleton (2) on base (1), and set up seatpad skeleton (3) at back skeleton (2) downside, characterized by: the backrest framework (2) is arranged on the base (1) in a sliding manner, and is driven to slide up and down in the vertical direction by the lifting device (5); a rotating device (6) for driving the seat cushion framework (3) to rotate along a horizontal rotating shaft (31) in the vertical direction is arranged on the backrest framework (2); the lower side of the seat cushion framework (3) is hinged with a connecting rod mechanism (32) for supporting the seat cushion framework when the seat cushion framework rotates to be horizontal; the rotating device (6) comprises a screw lifter (61) hinged on the backrest framework (2) and a connecting plate (62) with one end hinged with a lifting plate (613) of the screw lifter (61) and the other end fixedly connected with the horizontal rotating shaft (31); the connecting rod mechanism (32) comprises two supporting plates (321) fixedly arranged on the backrest framework (2) and close to one side of the seat cushion framework (3), a supporting shaft (3211) fixedly connected with one end of the backrest framework (2) and arranged on the supporting shaft (3211) in a rotating mode and connected with the lower portion of the seat cushion framework (3), and a connecting rod II (323) hinged to one end, away from the supporting shaft (3211), of the connecting rod II (323), and one end, away from the connecting rod I (322), of the connecting rod II is hinged to one end, away from the horizontal rotating shaft (31), of the seat cushion framework (3).
2. The folding seat according to claim 1, characterized in that: the first connecting rod (322) is L-shaped, when the seat cushion framework (3) rotates to be horizontal, one end of the first connecting rod (322) close to the supporting shaft (3211) is in a vertical state, and the other end of the first connecting rod is horizontal.
3. The folding seat according to claim 1, characterized in that: a lower shield (3221) is fixedly arranged on one side, far away from the supporting shaft (3211), of the first connecting rod (322), and an upper shield (3231) is fixedly arranged on the outer side of the second connecting rod (323).
4. The folding seat according to claim 1, characterized in that: the upper side of the backrest framework (2) is provided with a headrest mounting plate (4), and the headrest mounting plate (4) is connected to the rotating device (6) through a sliding component (41) so that the headrest mounting plate (4) can slide up and down along the vertical direction.
5. The folding seat according to claim 4, wherein: the sliding assembly (41) comprises a guide block (411) fixedly arranged on the backrest framework (2), a guide post (412) slidably arranged on the guide block (411) along the vertical direction, a sliding connection plate (413) with one end hinged with the connecting plate (62) and the other end hinged with the guide post (412), a concave plate (414) fixedly arranged at the upper end of the guide post (412), and a support rod (415) fixedly arranged at the upper end of the concave plate (414) and supporting the headrest mounting plate (4).
6. The folding seat according to claim 1, characterized in that: the lifting device (5) comprises sliding rails (51) fixed on the base (1) on two vertical sides, sliding plates (52) which are arranged on the sliding rails (51) in a sliding mode and fixedly connected with the backrest framework (2), and a driving motor (53) which is fixed on the base (1) and drives the sliding plates (52) to slide up and down through a transmission assembly (54) arranged.
7. The folding seat according to claim 6, characterized in that: the transmission assembly (54) comprises a sliding block (541) fixed on the sliding plate (52), a screw rod (542) penetrating through the sliding block (541) and in threaded connection with the sliding block, and a first bevel gear (543) and a second bevel gear (544) sleeved on the end part of the output shaft of the driving motor (53) and the screw rod (542) and meshed with each other.
8. The folding seat according to claim 7, characterized in that: support blocks (545) are fixedly arranged at the upper end and the lower end of the sliding rail (51) and on the two horizontal sides of the lead screw (542), limiting grooves (5451) are formed in the support blocks (545), support wheels (5452) are sleeved on the lead screw (542), and the support wheels (5452) are clamped in the limiting grooves (5451).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711378889.7A CN108016330B (en) | 2017-12-19 | 2017-12-19 | Folding chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711378889.7A CN108016330B (en) | 2017-12-19 | 2017-12-19 | Folding chair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108016330A CN108016330A (en) | 2018-05-11 |
| CN108016330B true CN108016330B (en) | 2023-11-10 |
Family
ID=62074102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711378889.7A Active CN108016330B (en) | 2017-12-19 | 2017-12-19 | Folding chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108016330B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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Also Published As
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| CN108016330A (en) | 2018-05-11 |
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