CN209595194U

CN209595194U - Electronic auxiliary leisure lift chair

Info

Publication number: CN209595194U
Application number: CN201821472724.6U
Authority: CN
Inventors: 林长贞
Original assignee: ZHONGSHAN KAIMEI COMMODITY CO Ltd
Current assignee: ZHONGSHAN KAIMEI COMMODITY CO Ltd
Priority date: 2018-09-07
Filing date: 2018-09-07
Publication date: 2019-11-08
Anticipated expiration: 2028-09-07

Abstract

The utility model discloses a kind of electronic auxiliary leisure lift chairs, including pedestal, seat unit, chair back unit, foot pad unit, linkage unit, an electric rod, seat unit to be set to above pedestal, has sitting frame, chassis, stop section is arranged in sitting frame；Chair back unit has backrest, first connecting rod；Foot pad unit can take down the exhibits, have when foot pad unit expansion when and stop section against abutment end；Linkage unit includes the first frame body, the second frame body, makees motion block, telescopic rod, and the first frame body and two end of the second frame body are pivotally connected with the chassis of pedestal and seat unit respectively, and seat unit can be driven to correspond to pedestal lifting action；Make motion block and chair back unit, seat unit, the second frame body, telescopic rod are pivotally connected；Two end of telescopic rod respectively with make motion block and foot pad unit and be pivotally connected；Electric rod and make motion block pivot joint, extending drives foot pad unit expansion and chair back backward wing can shorten and sitting frame rear driven to raise movement, and the utility model only needs an electric rod that can act, structure simply, the operation is stable.

Description

Electronic auxiliary leisure lift chair

Technical field

The utility model relates to a kind of electronic auxiliary leisure lift chairs, refer mainly to one kind and act by single electric rod, and And the auxiliary leisure lift chair of preferably operation ease, stability and comfort.

Background technique

It is lying or leaning to provide buttocks seating and back that existing seat generally has seat, the chair back, comfortable in order to provide foot support Property the seat before can be arranged again provide support foot scalable foot pad, and the chair back can adjust reclined by angle with promoted take Comfortable effect.

Seat convenience is left in order to provide people, seat, which has, at present to be mainly convenient for the design that occupant stands up Enabling seat can improve later so that occupant's buttock center of gravity is improved and moved forward in order to leave seat standing activities.

Adjustment angle of back-rest movement is provided as the seat of US7543885 United States Patent (USP) has an electric rod, and the chair back is swung back Foot pad expansion can be driven to act simultaneously, and having another electric rod can control the raising of seat rear to act in order to stand up, however should Structure must use two electric rods, tool component it is at high cost use more inconvenient missing, and when occupant need only enable foot pad be unfolded but Substantially make to read or aforementioned seat cannot be acted so when diet acts by layback for the chair back, has the bad missing of applicability.

It is acted though the seat may be designed at present using the i.e. controllable chair back reclined by angle of an electric rod and seat raising, It may cause linked component complexity, the bad missing of stability.

Utility model content

To solve the above-mentioned problems, the utility model provides a kind of electronic auxiliary leisure lift chair.

The technical scheme adopted by the utility model to solve the technical problem is as follows:

Electronic auxiliary leisure lift chair, comprising:

One pedestal；

One seat unit is set to above pedestal, and the chassis that one sitting frame of tool, one are set to sitting frame lower section is arranged in front of the sitting frame One stop section；

One chair back unit is set to seat unit rear, has a backrest, a first connecting rod, backrest lower section and sitting frame rear Pivot joint, and be pivotally connected below the first connecting rod one end and backrest；

One foot pad unit, deployable or equivalent, interconnecting piece and one that tool one is located behind when being unfolded are located at the support in front Portion, and it is deployable or equivalent, it is pivotally connected in front of the interconnecting piece and seat unit, and have and kept off when the expansion of foot pad unit with seat unit Stop against abutment end；

One linkage unit, including one first frame body, one second frame body, one make motion block, a telescopic rod, first frame body and Two frame bodies, two end is pivotally connected with the chassis of pedestal and seat unit respectively, and seat unit can be driven to correspond to pedestal lifting action；Again This makees the first connecting rod of motion block and chair back unit, seat unit, the second frame body, telescopic rod pivot joint；Telescopic rod tool is scalable again Elasticity, two ends are pivotally connected with the interconnecting piece for making motion block and foot pad unit respectively；

One electric rod, one end and makees motion block pivot joint, and extending drives foot pad unit is unfolded and chair back backward wing, and The telescopic rod provide foot pad unit abutment end and seat unit stop section against when can shorten act and make backrest can it is independent after Movement is faced upward, and the first and second frame body and the raising of seat unit and sitting frame rear can be driven to raise movement when electric rod shortening.

The linkage unit further includes a rope hauling device, which has a reel, a rope body, which is set to seat On unit, and the rope body is set on reel and tool can fold elasticity, is combined in front of the support portion of the rope body one end and foot pad unit.

The telescopic rod has an outer tube, one is placed in interior bar in outer tube, the interior bar one end can in outer tube by air pressure or Telescopic spring movement.

A crossbearer parallel to the ground is arranged in the pedestal, which is respectively set the first and second pivot joint Portion；Third and fourth articulated section is set in front of the sitting frame of the seat unit again, and the five, the six pivot joints are respectively set in two side of rear and center Portion；The chassis and two side of sitting frame are affixed again, and the seven, the eight articulated sections are respectively set in two side upper and lowers；Again the chair back unit it The side plate of a correspondence is respectively set in two sides below backrest, the 5th articulated section pivot of setting the 9th articulated section and sitting frame in front of the side plate It connects, and the tenth articulated section is arranged in backrest center lower section；And after the first connecting rod, it is respectively arranged in front with the 11st, 12 pivot joints Tenth articulated section of portion, the 11st articulated section and backrest is pivotally connected.

The interconnecting piece of the foot pad unit has a frame body, two second connecting rods, and the 13rd, 14 pivots is arranged in the rear of the frame body 4th articulated section of socket part, the 14th articulated section and seat unit is pivotally connected, but two second connecting rods, two end respectively with sitting frame it Third articulated section and support portion pivot joint, but the support portion has connection rod set, and the connection rod set rear and the second connecting rod of interconnecting piece are pivotally connected, And the interconnecting piece and support portion can be located at below sitting frame when folding foot pad unit, and interconnecting piece and support when the expansion of foot pad unit Portion can be located in front of sitting frame.

After first frame body, front end be respectively set the 15th, 16 articulated sections, the 15th articulated section and pedestal it First pivoting portion pivot joint；16th articulated section and the 7th articulated section of seat unit are pivotally connected；Again after second frame body, front end point Not She Zhi the 17th, 18 articulated sections, the second pivoting portion of the 17th articulated section and pedestal is pivotally connected, the 18th articulated section with 8th articulated section of seat unit is pivotally connected, and the 19th articulated section is arranged in the second frame body.

For the motion block of making set on seat unit lower section and the first and second frame body front position, this makees motion block rear setting second The 21st, 22,23 articulated sections, the 20th articulated section and chair is from top to bottom set in sequence in ten articulated sections, front The 12nd articulated section pivot joint of unit is carried on the back, and the 23rd articulated section and the 19th articulated section of the second frame body are pivotally connected；Again should Telescopic rod one end is pivotally connected with the 20th articulated section for making motion block, and the 13rd articulated section of the other end and foot pad unit is pivotally connected.

6th articulated section of described electric rod one end and seat unit is pivotally connected, and the other end and makees the second of motion block central front The pivot joint of 12 articulated sections.

A convex button is respectively set in the two side rear end of sitting frame, and engageable chair is arranged in two side plates in the backrest of the chair back unit The arc-shaped slot of seat unit convex button.

The beneficial effects of the utility model are: the utility model enables chair back unit not swing back, foot pad unit is un-extended, seat The electric rod can have setting spread length positioning and make motion block angle to ensure that foot pad unit will not stretch and chair when unit does not improve Seat unit rear will not improve, and the telescopic rod can have an extension elongation, but the rope body of the rope hauling device can draw foot pad unit it Support portion is equivalent to have preferably equivalent stability.

The utility model can drive when electric rod being enabled to extend makees the Forward of biased forwards drive telescopic rod and foot pad above motion block Unit expansion, the backrest of chair back unit can be deviated slightly backward at this time, and the gear of the abutment end at foot pad unit rear and seat unit Stop will not be big against the backrest of chair back unit when can limit foot pad unit maximum expanded angle, and can provide the expansion of foot pad unit In order to occupant's reading or when making other work, foot can rest for width layback.

The utility model enables electric rod persistently extend to enable and make to deviate and drive the of chair back unit in motion block rear direction One connecting rod offset and backrest backward wing, and this make motion block front side top can simultaneously towards front deviate and compressible telescopic rod, Thus the telescopic rod, which can provide, makees the sustainable actuating length of motion block to enable backrest normally can will not influence foot pad unit by backward wing.

The utility model stands up to act the shortening of Shi Keling electric rod, and can drive and make motion block and deviate and make the first and second frame body Before can raise movement, and the first and second frame body can interlock that seat unit is corresponding to be raised and rear raises up movement, and can provide seating Person's buttocks can be improved and center of gravity is convenient for standing up to act forward.

The utility model need only use an electric rod can make foot pad unit fold or be unfolded, backrest hypsokinesis angle adjustment, Seat unit raising movement, black box, which is simplified and can be had, preferably makees dynamic stability, but the utility model can enable foot pad unit with Backrest separating action promotes read or lie low rest more preferably convenience and comfort effect.

Detailed description of the invention

The present invention will be further described with reference to the accompanying drawings and examples:

Fig. 1 is the utility model exploded view；

Fig. 2 is the combination stereogram of the utility model, shows foot pad unit unfolded state；

Fig. 3 is the combination stereogram of the utility model, shows foot pad unit collapse state；

Fig. 4 is the side view of the utility model, shows foot pad unit collapse state；

Fig. 5 is the side view of the utility model, and display backrest is slightly swung back and foot pad unit expanded schematic diagram；

Fig. 6 is the side view of the utility model, and maximum angle schematic diagram is set in display backrest layback；

Fig. 7 is the side view of the utility model, and display seat unit improves schematic diagram；

Fig. 8 is the perspective view of the utility model, and display seat unit improves schematic diagram.

Specific embodiment

Description of symbols: 1 pedestal, 11 pedestals, 12 columns, 13 crossbearers, 14 joint plates, 15 first pivoting portions, 16 second Articulated section, 2 seat units, 21 sitting frames, 211 third articulated sections, 210 the 4th articulated sections, 212 the 5th articulated sections, 213 the 6th pivot joints Portion, 214 stop sections, 215 convex buttons, 22 chassis, 221 sides seat, 222 first crossbars, 223 the 7th articulated sections, 224 the 8th articulated sections, 3 Chair back unit, 31 backrests, 311 side plates, 312 the 9th articulated sections, 313 arc-shaped slots, 314 the tenth articulated sections, 32 first connecting rods, 321 the 11st articulated sections, 322 the 12nd articulated sections, 4 foot pad units, 41 interconnecting pieces, 411 frame bodies, 412 second connecting rods, 413 Body, 414 second crossbars, 415 abutment ends, 416 the 13rd articulated sections, 417 the 14th articulated sections, 42 support portions, 421 connecting rods, 422 Support rod, 5 linkage units, 51 first frame bodies, 511 sheet bodies, 512 third cross bars, 513 backup plates, 514 the 15th articulated sections, 515 16 articulated sections, 52 second frame bodies, 521 sheet bodies, 522 the 4th cross bars, 523 the 17th articulated sections, 524 the 18th articulated sections, 525 19th articulated section, 53 make motion block, 531 sheet bodies, 532 the 5th cross bars, 533 the 20th articulated sections, 534 the 21st articulated sections, 535 the 22nd articulated sections, 535 the 23rd articulated sections, 54 telescopic rods, 541 outer tubes, 542 interior bars, 55 rope hauling devices, volume 551 Cylinder, 552 rope bodies, 6 electric rods, 61 motors.

Referring to Fig.1~Fig. 4, the utility model include a pedestal 1, a seat unit 2, a chair back unit 3, a foot pad unit 4, a linkage unit 5, an electric rod 6, wherein the foot pad unit 4 of schema to be unfolded when define front and rear direction, the pedestal 1 tool one Pedestal 11,11 center of pedestal have a column 12, a crossbearer 13 parallel to the ground, 13 2 side of crossbearer are arranged above the column 12 A joint plate 14 is respectively set, the first and second articulated section 15,16 is respectively set in 14 rear side of joint plate and upper and lower.

Seat unit 2 includes a sitting frame 21, a chassis 22, and the sitting frame 21 about corresponding ground that is square is horizontally disposed to provide It takes, third and fourth articulated section 211,210 is arranged in front, and the five, the six articulated sections 212,213 are respectively set in two side of rear and center, Stop section 214 is arranged adjacent to 211 position of third articulated section in this again, and a convex button 215 is respectively set in 21 2 side rear end of sitting frame；Again The chassis 22 is set to 21 lower section of sitting frame, has the side seat 221 of two correspondences, and two side seat, 221 top is affixed with 21 2 side of sitting frame respectively, Two side seat, 221 center tool one first crossbar 222 connection, and the seven, the eight articulated sections are respectively set in two sides, 221 upper and lowers of seat 223、224。

Chair back unit 3 includes a backrest 31, a first connecting rod 32, which is respectively set the side of a correspondence Plate 311, the 9th articulated section 312 of setting and the 5th articulated section 212 at 21 rear of sitting frame are pivotally connected in front of the side plate 311, and in two sides The arc-shaped slot 313 of engageable 2 convex button 215 of seat unit is arranged in plate 311, and the tenth articulated section is arranged in the 31 center lower section of backrest 314；Again after the first connecting rod 32, be respectively arranged in front with the 321,322, the 11st articulated section 321 of the 11st, 12 articulated section with Tenth articulated section 314 of backrest 31 is pivotally connected.

Foot pad unit 4 is multi-connecting-rod mechanism and deployable or equivalent, the interconnecting piece 41 that one correspondence of tool is located behind when being unfolded And it is located at the support portion 42 in front, which has a frame body 411, two second connecting rods 412, which has two parallel plates Body 413, tool second crossbar 414 links between two sheet bodies 413, and the setting of two sheet bodies, 413 rear end can be when foot pad unit 4 be unfolded and seat 2 sitting frame of unit, 21 stop section 214 against hook abutment end 415, and in two sheet bodies, 413 rear setting the 13rd, 14 pivot joint The 416,417, the 14th articulated section 417 of portion and the 4th articulated section 210 of seat unit are pivotally connected, and two second connecting rod 412 2 End is pivotally connected with the third articulated section 211 of sitting frame 21 and support portion 42 respectively, and can be connected portion 41 and the movement of support portion 42.

Support portion 42 has the connection rod set of four connecting rods 421 and two 422 compositions of support rod, each 421 2 end of connecting rod difference It is pivotally connected with 411 front of frame body and support rod 422, and the second connecting rod 412 of the connection rod set rear and interconnecting piece 41 is pivotally connected, and makes foot The interconnecting piece 41 and support portion 42 can be located at 21 lower section of sitting frame when single pad member 4 folds, but when foot pad unit 4 is unfolded interconnecting piece 41 and Support portion 42 can be located at 21 front of sitting frame, and support rod 422 is made to be located at four 421 top positions of connecting rod.

Linkage unit 5 makees motion block 53, a telescopic rod 54, drawstring dress including one first frame body 51, one second frame body 52, one 55 are set, which has two sheet bodies 511 arranged in parallel, center tool one third cross bar 512 connection, the third cross bar 512 Lower section setting can against the backup plate 13 of 1 crossbearer of pedestal, and after two sheet body 511, front end the 15th, 16 articulated sections are respectively set 514, the 515, the 15th articulated section 514 and the first pivoting portion 15 of pedestal 1 are pivotally connected；16th articulated section 515 and seat list The 7th articulated section 223 pivot joint of first 2 chassis 22.

Second frame body 52 has two sheet bodies 521 arranged in parallel, the connection of one the 4th cross bar 522 of tool, two sheet body between two sheet bodies 521 After 521, front end second pivot joint of the 523,524, the 17th articulated section 523 of the 17th, 18 articulated section with pedestal 1 is respectively set Portion 16 is pivotally connected, and the 18th articulated section 524 and the 8th articulated section 224 of 2 chassis 22 of seat unit are pivotally connected, and in the 4th cross bar 522 centers the 19th articulated section 525 of setting.

Make motion block 53 set on 2 lower section of seat unit and the first and second frame body 51,52 front positions, has two sheet bodies arranged in parallel 531, the 5th cross bar 532 of setting links between two sheet bodies 531, which is arranged the 20th articulated section 533, front by The 21st, 22,23 articulated sections 534,535,536, the 20th articulated section 533 and the chair back is set in sequence under above 12nd articulated section 322 of 3 first connecting rod 32 of unit is pivotally connected, and the 23rd articulated section 536 of the front lower end and the second frame 19th articulated section 525 of body 52 is pivotally connected.

The tool stretching, extension elasticity of telescopic rod 54, and foot pad unit 4 is failure to actuate when can provide 3 part of chair back unit layback stroke, it should Telescopic rod 54 has the interior bar 542 that an outer tube 541, one is placed in outer tube 541, which can be dynamic in stretching in outer tube 541 Make, and can have telescopic resilience (not shown) by air pressure or spring, and 541 one end of outer tube of the telescopic rod 54 and actuation 21st articulated section 534 of 53 front side top of block is pivotally connected, the 13rd pivot joint of 542 one end of inner tube and 4 frame body 411 of foot pad unit Portion 416 is pivotally connected.

Rope hauling device 55 has a reel 551, one rope body 552, which is set to the first cross of 2 chassis 22 of seat unit On bar 222, and the rope body 552 is set on reel 551 and tool can fold elasticity, the support of rope body 552 one end and foot pad unit 4 It is combined in front of portion 42, and foot pad unit 4 is provided and folds elasticity.

Electric rod 6, which has motor 61, can drive 6 expanding-contracting action of electric rod, behind 6 one end of electric rod and 2 sitting frame 21 of seat unit The 6th articulated section 213 of Fang Zhongyang is pivotally connected, and the other end is pivotally connected with the 22nd articulated section 535 for making 53 central front of motion block, and Keep foot pad unit 4 undeployed and the electric rod 6 stretches a segment length state when 2 rear of seat unit is not improved.

Electricity when the utility model enables chair back unit 3 not swing back, foot pad unit 4 is un-extended, 2 rear of seat unit is not improved Lever 6 can set spread length with position make 53 angle of motion block and ensure foot pad unit 4 will not stretch and 2 rear of seat unit not It can improve, and the telescopic rod 54 has extension elongation at this time, and the rope body 552 of the rope hauling device 55 can draw the branch of foot pad unit 4 Support part 42 is equivalent to have preferably equivalent stability.

Referring to Fig. 5, the utility model enable electric rod 6 can be driven when extending make 53 top biased forwards of motion block drive it is flexible The Forward of bar 54 and foot pad unit 4 are unfolded, and at this time the backrest 31 of chair back unit 3 can be deviated slightly backward, and 4 rear of foot pad unit is supported By end 415 and the stop section 214 of seat unit 2 against the maximum expanded angle of foot pad unit 4 can be limited, and it can provide foot pad unit The backrest 31 of chair back unit 3 will not substantially swing back in order to which occupant reads or make other work when 4 expansion.

Referring to Fig. 6, the utility model enables electric rod 6, persistently elongation can enable and make 53 rear of motion block and offset up and drive The first connecting rod 32 of chair back unit 3 deviates and 31 backward wing of backrest, but this make 53 front side top of motion block can be simultaneously towards front It deviates and compressible telescopic rod 54, thus the telescopic rod 54 can provide and make the sustainable actuating length of motion block 53 and keep backrest 31 normal Backward wing does not influence foot pad unit 4, and makes the movement of chair back unit 3 that can be detached from foot pad unit 4, the backrest 31 layback larger angle When can provide occupant's relatively approach lying position to have preferable lying or leaning comfort, and arc groove when aforementioned 31 backward wing of backrest The convex button 215 that hole 313 can correspond to seat unit 2 is acted to have preferable action stability, and the arc-shaped slot 313 can limit backrest 31 maximum reclined by angle.

Referring to Fig. 4, the utility model enables electric rod 6 that can enable when shortening again makees 53 reserve migration of motion block, and chair can be driven The backrest 31 of back unit 3 folds and foot pad unit 4 folds, and the rope body 552 of the rope hauling device 55 can draw foot by appropriate pulling force Single pad member 4 folds stability to be promoted.

Please refer to Fig. 7,8, the utility model stands up to act Shi Keling electric rod 6 to be shortened again, and can drive that make motion block 53 inclined It moves and movement can be raised before making the first and second frame body 51,52, and the first and second frame body 51,52 can interlock the correspondence of seat unit 2 and raise It rises and rear raises up movement, and can provide that occupant's buttock can be improved and center of gravity is convenient for standing up to act forward.

Therefore the utility model need only use an electric rod 6 can make foot pad unit 4 fold or be unfolded, backrest 31 The adjustment of hypsokinesis angle, 2 raising of seat unit movement, the utility model black box, which is simplified and can be had, preferably makees dynamic stability, again The utility model can enable foot pad unit 4 and 31 separating action of backrest promote read or lie low rest more preferably convenience and comfort function Effect, and previous embodiment is the utility model illustration, not the utility model limits, and all foundation the spirit of the present invention institute is for it Equivalent change also should belong in the utility model scope.

Claims

The lift chair 1. electronic auxiliary is lain fallow, characterized by comprising:

One pedestal；

One seat unit is set to above pedestal, and the chassis that one sitting frame of tool, one are set to sitting frame lower section, setting one is kept off in front of the sitting frame Stop；

One chair back unit is set to seat unit rear, has a backrest, a first connecting rod, is pivotally connected below the backrest with sitting frame rear, It is pivotally connected below the first connecting rod one end and backrest again；

One foot pad unit, deployable or equivalent, interconnecting piece and one that tool one is located behind when being unfolded are located at the support portion in front, and It is deployable or equivalent, be pivotally connected in front of the interconnecting piece and seat unit, and have when the expansion of foot pad unit with seat unit stop section Against abutment end；

One linkage unit, including one first frame body, one second frame body, one make motion block, a telescopic rod, first frame body and the second frame Two end of body is pivotally connected with the chassis of pedestal and seat unit respectively, and seat unit can be driven to correspond to pedestal lifting action；The work again The first connecting rod of motion block and chair back unit, seat unit, the second frame body, telescopic rod are pivotally connected；The telescopic rod has telescopic elastic again, Two ends are pivotally connected with the interconnecting piece for making motion block and foot pad unit respectively；

One electric rod, one end and makees motion block pivot joint, and extending drives foot pad unit is unfolded and chair back backward wing, and this is stretched Contracting bar provide foot pad unit abutment end and seat unit stop section against when can shorten movement and to make backrest that can independently swing back dynamic Make, and the first and second frame body and the raising of seat unit and sitting frame rear can be driven to raise movement when electric rod shortening.
The lift chair 2. electronic auxiliary as described in claim 1 is lain fallow, it is characterised in that the linkage unit further includes a drawstring Device, the rope hauling device have a reel, a rope body, which is set on seat unit, and the rope body is set on reel and tool can Elasticity is folded, is combined in front of the rope body one end and the support portion of foot pad unit.
The lift chair 3. electronic auxiliary as described in claim 1 is lain fallow, it is characterised in that one outer tube of the telescopic rod tool, one are placed in Interior bar in outer tube, the interior bar one end can be in acting in outer tube by air pressure or telescopic spring.
The lift chair 4. electronic auxiliary as described in claim 1 is lain fallow, it is characterised in that the pedestal setting one is parallel to the ground Crossbearer, which is respectively set the first and second articulated section；And the sitting frame of seat unit front setting third, The five, the six articulated sections are respectively set in four articulated sections, two side of rear and center；The chassis and two side of sitting frame are affixed again, and in two sides The seven, the eight articulated sections are respectively set in upper and lower；The side plate of a correspondence is respectively set in two sides of backrest lower section of the chair back unit again, The 9th articulated section of setting and the 5th articulated section of sitting frame are pivotally connected in front of the side plate, and the tenth pivot joint of backrest center lower section setting Portion；And after the first connecting rod, it is respectively arranged in front with the 11st, 12 articulated sections, the tenth pivot of the 11st articulated section and backrest Socket part pivot joint.
The lift chair 5. electronic auxiliary as claimed in claim 4 is lain fallow, it is characterised in that the interconnecting piece tool one of the foot pad unit Frame body, two second connecting rods, the rear of the frame body are arranged the 13rd, 14 articulated sections, the 14th articulated section and seat unit it The pivot joint of 4th articulated section, but two second connecting rods, two end is pivotally connected with the third articulated section of sitting frame and support portion respectively, and the support Portion has connection rod set, and the second connecting rod of the connection rod set rear and interconnecting piece is pivotally connected, and the interconnecting piece and branch when folding foot pad unit Support part can be located at below sitting frame, and interconnecting piece and support portion can be located in front of sitting frame when the expansion of foot pad unit.
The lift chair 6. electronic auxiliary as claimed in claim 5 is lain fallow, it is characterised in that after first frame body, the difference of front end 15th, 16 articulated sections, the first pivoting portion pivot joint of the 15th articulated section and pedestal are set；16th articulated section and chair The 7th articulated section pivot joint of seat unit；Again after second frame body, front end is respectively set the 17th, 18 articulated sections, and the 17th The second pivoting portion of articulated section and pedestal is pivotally connected, and the 8th articulated section of the 18th articulated section and seat unit is pivotally connected, and in the The 19th articulated section is arranged in two frame bodies.
The lift chair 7. electronic auxiliary as claimed in claim 6 is lain fallow, it is characterised in that the motion block of making is under seat unit Side and the first and second frame body front position, this is made motion block rear and the 20th articulated section is arranged, and front is from top to bottom set in sequence second 12nd articulated section of 11,22,23 articulated sections, the 20th articulated section and chair back unit is pivotally connected, but this second 13 articulated sections and the 19th articulated section of the second frame body are pivotally connected；The telescopic rod one end and the 20th articulated section pivot for making motion block again It connects, the 13rd articulated section of the other end and foot pad unit is pivotally connected.
The lift chair 8. electronic auxiliary as claimed in claim 7 is lain fallow, it is characterised in that described electric rod one end and seat unit The 6th articulated section pivot joint, the other end with make motion block central front the 22nd articulated section be pivotally connected.
The lift chair 9. electronic auxiliary as claimed in claim 4 is lain fallow, it is characterised in that the two side rear end of sitting frame is respectively set One convex button, but the arc-shaped slot of engageable seat unit convex button is arranged in two side plates for the backrest of the chair back unit.