CN205849673U - Wheelchair back-rack adjusts holder structure - Google Patents

Abstract

The utility model discloses a kind of Wheelchair back-rack and adjust holder structure, this adjustment seat includes seat, a seat of honour, a pivoted body, a positioning body, below this lower seat, there is lower junction surface, connect with the hypomere group of backrest, having fit portion above this lower junction surface, under this fit portion correspondence, junction surface axial location has fit slot, and fit slot is towards a rear projection at least the first side wall, arranging the first articulated section below the first side wall, the corresponding first articulated section Difference angles of the first side wall arranges hole, multiple location；Having upper junction surface above this seat of honour, this has below junction surface location division, location division is towards rear projection at least one second sidewall, and this second sidewall arranges the second articulated section, and the corresponding aforementioned position of positioning hole of the second sidewall arranges open-work；This pivoted body and first and second articulated section pivot joint；This positioning body is located at the position, location division at the seat of honour, has navigation button；This utility model adjustable chair back reclined by angle and expansion whereby, fold, there is preferable positioning stablity effect.

Description

Wheelchair back-rack adjusts holder structure

Technical field

This utility model relates to wheelchair field, refers mainly to a kind of Wheelchair back-rack and adjusts holder structure.

Background technology

As shown in Figure 11 to Figure 13, known wheelchair is respectively provided with backrest 1 ' (showing side in figure) in side, rear two, and in Backrest 1 ' is provided above handle 11 ', and has epimere 12 ', a hypomere 13 ' to reduce this backrest 1 ' of wheelchair folding volume, and on Section 12 ', hypomere 13 ' arrange a foldable base 2 ', and this foldable base 2 ' has seat 21 ', a seat of honour 22 ', and this lower seat 21 ' has Lower junction surface 211 ', connects with the hypomere 13 ' group of backrest 1 ', and side has articulated section 212 ', is provided above fit slot 213 ', fit Groove 213 ' side arranges hole 214 ', location；Top, the seat of honour 22 ' has can be with the upper junction surface of the epimere 12 ' of backrest 1 ' combination 221 ', side, lower section arranges and can arrange again control knob 223 ', location bar 224 ' with the articulated section 222 ' of articulated section 212 ' pivot joint, When the upper junction surface 221 ' making the seat of honour 22 ' is positioned at fit slot 213 ' position, location bar 224 ' can be made to engage with hole 214 ', location, And the epimere 12 ' of backrest 1 ', hypomere 13 ' linearly its fully unfolded position can be positioned, control knob 223 ' order location bar can be pressed again 224 ' depart from hole 214 ', location, and make the seat of honour 22 ' to pivot by corresponding lower seat 21 ', and make the epimere 12 ' of backrest 1 ' can corresponding hypomere 13 ' about in parallel equivalent.

But aforementioned structure is only provided that backrest 1 ' equivalent reduction volume, it is impossible to the angle adjusting backrest 1 ' supplies lying or leaning, tool There is the best disappearance of the suitability, comfortableness, although it is interior to be inserted hole 214 ', location by location bar 224 ' when making again foldable base 2 ' launch Location, but between the hole wall in this location bar 224 ' outer rim and hole 214 ', location, still there is gap, cause the epimere 12 ' pine of this backrest 1 ' Dynamic, and cause gripping handle 11 ' to promote wheelchair action generation to rock disappearance.

Utility model content

Main purpose of the present utility model is to provide in a kind of adjustable backrest square degree to promote riding comfort Wheelchair back-rack adjusts holder structure.

Another object of the present utility model be to provide a kind of can strong fix backrest angle to promote stability in use Wheelchair back-rack adjusts holder structure.

Based on this, this utility model mainly by following technological means, realizes above-mentioned purpose.

A kind of Wheelchair back-rack adjusts holder structure, and this wheelchair rear has two backrests, and two backrests have upper and lower section, upper and lower section Between adjustment seat is set, make that backrest is fully deployed, adjust angle or equivalent, this adjustment seat includes:

A time seat, lower section has lower junction surface, connects with the hypomere group of backrest, has fit portion above this lower junction surface, should Under fit portion correspondence, junction surface axial location has fit slot, and this fit slot is towards a rear projection at least the first side wall, and this is years old One sidewall arranges the first articulated section, arranges hole, multiple location in the corresponding first articulated section Difference angles of the first side wall；

One seat of honour, top has the upper junction surface of the epimere combination with backrest, this has below junction surface and is placed in set Closing the location division of groove, this location division arranges the second articulated section towards rear projection at least one second sidewall, this second sidewall, in the The corresponding aforementioned position of positioning hole of two sidewalls arranges open-work；

One pivoted body, with first articulated section at the seat of honour, the second articulated section pivot joint of lower seat；

One positioning body, is located at the position, location division at the seat of honour, with hole, location out of engagement with hole, location.

Further, this positioning body has the navigation button of knee springing, and this navigation button convexedly stretches in outside open-work, connects with hole, location Close or depart from hole, location.

Further, when backrest is fully deployed, at least one hole, location engages with this positioning body.

Further, the fit slot of lower seat, towards the parallel the first side wall of rear two side projection two, has between two the first side walls Opening, the location division width at the seat of honour is less than aforementioned opening, and this location division has two parallel second sidewalls towards rear.

Further, the first articulated section, the second articulated section are respectively provided with pivot hole, and this pivoted body has a hinged arm, a packing button, This hinged arm one end has threaded portion, when the location division at the seat of honour is located in the fit slot of lower seat, this hinged arm intert the first articulated section, Two articulated section pivot joints, this packing button engages with the threaded portion of hinged arm, makes the first side wall, the second sidewall packing location.

Further, the location division at the seat of honour is ducted body, and corresponding 2 second side wall centers positions arrange jack；This positioning body has Having two navigation buttons, arrange elastomer between two navigation buttons, this elastomer has bending section, and this bending section is located at the jack of location division In, and make two navigation buttons be interted open-work by 2 second inside sidewalls respectively by the elasticity of elastomer, make navigation button convexedly stretch in Outside hole.

Further, the hole, location of lower seat arranges the slotted eye connected with lower seat outer rim；The open-work at the seat of honour arranges and connects with outer rim Slotted eye；This keeper has a positioning rod, a spring, and this location bar embeds in open-work and hole, location via slotted eye, this spring Location bar is provided to embed the elastic force in hole, location.

Further, these location bar central authorities arrange lug.

Further, the fit slot of lower seat, towards the parallel the first side wall of rear two side projection two, has between two the first side walls Opening, the location division width at the seat of honour is less than aforementioned opening, and this location division has two parallel second sidewalls, this location bar towards rear Length is more than 2 second sidewall separation, and this spring two end engages with location bar and the seat of honour respectively.

Further, the first articulated section, the second articulated section are respectively provided with pivot hole, and this pivoted body has a hinged arm, a packing button, This hinged arm one end has threaded portion, when the location division at the seat of honour is located in the fit slot of lower seat, hinged arm intert the first articulated section pivot, Two articulated section pivot joints, this packing button engages with the threaded portion of this hinged arm, makes the first side wall, the second sidewall packing location.

This utility model Wheelchair back-rack is adjusted structure and is designed by the structure of pivoted body and positioning body, makes backrest fully deployed Time this positioning body navigation button can stretch through the location, hole, location of corresponding expanded position, and can screw by packing button simultaneously, can have Having preferable combinative stability effect, user can press the navigation button of positioning body makes navigation button depart from this hole, location, and can make the seat of honour Corresponding lower seat pivots, and makes the navigation button of positioning body can make the navigation button can be with the determining of Difference angles by the elasticity of elastomer Hole, position engages location, and the epimere correspondence hypomere of adjustable backrest has suitable angle of inclination to promote riding comfort, and adjusts By packing button packing strong fix, thus stability in use can be promoted after whole；The navigation button order of user pressing positioning body again Navigation button departs from location Kong Shike makes under the correspondence of the seat of honour seat pivot, and to make the epimere of backrest, hypomere be parallel equivalent, and can have Reduce backrest volume effect.

Accompanying drawing explanation

Fig. 1 is that first embodiment of the present utility model adjusts seat exploded view.

Fig. 2 is that first embodiment of the present utility model adjusts seat constitutional diagram.

Fig. 3 is that first embodiment of the present utility model adjusts seat assembled sectional view.

Fig. 4 is that first embodiment of the present utility model adjustment seat is mounted on Wheelchair back-rack schematic diagram, and shows that backrest is complete Deployed condition.

Fig. 5 is that this utility model first embodiment makes the epimere correspondence hypomere of backrest have angle of inclination schematic diagram.

Fig. 6 is that this utility model first embodiment makes the epimere correspondence hypomere of backrest have angle of inclination schematic diagram.

Fig. 7 is that this utility model first embodiment makes the epimere correspondence hypomere of backrest fold schematic diagram.

Fig. 8 is that the second embodiment of the present utility model adjusts seat exploded view.

Fig. 9 is that the second embodiment of the present utility model adjusts seat combination.

Figure 10 is that the second embodiment adjustment seat of the present utility model is mounted on Wheelchair back-rack and backrest epimere correspondence hypomere tool There is angle of inclination schematic diagram.

Figure 11 is that known wheelchair arranges foldable base schematic diagram.

Figure 12 is that known foldable base launches schematic diagram.

Figure 13 is that known foldable base folds schematic diagram.

[symbol description]

[this utility model]

1 backrest 11 epimere 12 hypomere

2 adjust 21 times seat 210 attachment member of seat

Fit portion 213,211 times junction surfaces 212 fit slot

214 the first side wall 215 opening 216 first articulated sections

217 hole 2171, location slotted eye 2251 slotted eyes

Junction surface on 22 seat of honour 220 attachment member 221

222 sidewall 224 second articulated section, location divisions 223 second

225 open-work 226 jack 23 pivoted bodies

231 hinged arm 232 packing button 233 threaded portions

24 positioning body 241 navigation button 242 elastomers

243 bending sections 244 position bar 245 spring

246 lugs

[known]

1 ' backrest 11 ' handle 12 ' epimere

13 ' lower the seats of hypomere 2 ' folding seat 21 '

211 ' articulated section 213 ', lower junction surface 212 ' fit slots

214 ' upper junction surface, the seat of honour, hole 22 ', location 221 '

222 ' articulated section 223 ' control knobs 224 ' position bar.

Detailed description of the invention

In the examples below, this utility model similar function assembly represents with same reference numbers, refers to Fig. 1 to Fig. 4, this The wheelchair rear of utility model first embodiment has two backrests 1 (only showing a backrest in figure, another backrest is corresponding), and two back ofs the body Frame 1 has epimere 11, a hypomere 12, epimere 11, adjustment seat 2 is set between hypomere 12, make backrest 1 can fully deployed, adjust angle or Equivalent, this adjustment seat 2 includes seat 21, seat of honour 22, pivoted body 23, positioning body 24, under having below this lower seat 21 Junction surface 211, connects with the hypomere 12 groups of backrest 1, and this lower junction surface 211 is vertical bar body, and with hypomere 12 fit of backrest 1 after Affixed by attachment member 210 again, above this lower junction surface 211, there is fit portion 212, corresponding lower junction surface 211, this fit portion 212 Axial location has fit slot 213, and fit slot 213 is towards the parallel the first side wall 214 of rear two side projection two, two the first side walls Having opening 215 between 214, arrange the first articulated section 216 below two the first side walls 214, this first articulated section 216 has pivot Hole, arranges hole, multiple location 217 in corresponding first articulated section 216 Difference angles of two the first side walls 214, and backrest 1 is opened up completely When opening, at least one hole 217, location engages with this positioning body 24.

Having the upper junction surface 221 can combined with the epimere 11 of backrest 1 above the seat of honour 22, on this, junction surface 221 can be straight Bar body, and with the epimere 11 of backrest 1 socket combination after affixed by attachment member 220 again, this has width below junction surface 221 Degree is less than the location division 222 of aforementioned fit portion 212 opening 215, and this location division 222 is towards parallel second side of rear two side projection two Wall 223, this second sidewall 223 arranges the second articulated section 224, arranges in 2 second positions, hole 217, sidewall 223 corresponding aforementioned location Open-work 225, this location division 222 is ducted body, and corresponding 2 second sidewall 223 middle positions arrange jack 226.

Pivoted body 23 has hinged arm 231, packing button 232, and this hinged arm 231 one end has threaded portion 233, the location at the seat of honour 22 When portion 222 is located in the fit portion 212 of lower seat 21, hinged arm 231 can be made to intert the 216, second articulated section 224, the first articulated section pivot Connecing, this packing button 232 engages with the threaded portion 233 of hinged arm 231, and the first side wall the 214, second sidewall 223 packing can be made to position.

Positioning body 24 is located at the position, location division 222 at the seat of honour 22, has two navigation buttons 241, arranges bullet between two navigation buttons 241 Gonosome 242, this elastomer 242 has bending section 243, and this bending section 243 is located in the jack 226 of location division 222, and makes two to determine Position button 241 by the elasticity of elastomer 242 respectively by interting open-work 225 inside 2 second sidewalls 223, and can make navigation button 241 Convexedly stretch in outside open-work 225.

This utility model make backrest 1 as when Fig. 1, Fig. 4 are fully deployed the navigation button 241 of this positioning body 24 can stretch through corresponding exhibition The hole, location 217 of open position positions, and can screw by packing button 232 simultaneously so that the seat of honour 22, lower seat 21 will not be because of holes, location 217 produce rock with the gaps of navigation button 241, can have preferable combinative stability effect.

Referring to Fig. 3, Fig. 5, Fig. 6, user can press the navigation button 241 of positioning body 24 makes navigation button 241 depart from this calmly Hole 217, position, and the corresponding lower seat 21 in the seat of honour 22 can be made to pivot, and make the navigation button 241 of positioning body 24 can be by elastomer 242 meal bullet Property makes navigation button 241 can engage with the hole, location 217 of Difference angles under location, and epimere 11 correspondence of adjustable backrest 1 Section 12 has suitably inclination angled seat degree to promote lying or leaning comfortableness, and can be by packing button 232 packing strong fix after adjustment.

Refer to Fig. 7, when the navigation button 241 of user pressing positioning body 24 makes navigation button 241 depart from hole 217, location, can Make the corresponding lower seat 21 in the seat of honour 22 pivot, and make the epimere 11 of backrest 1, hypomere 12 about in parallel equivalent, and can have minimizing backrest 1 Volume effect.

Referring to Fig. 8 to Figure 10 is the second embodiment of the present utility model, and this second embodiment is similar with first embodiment, Its Main Differences arranges, in the hole 217, location of lower seat 21, the slotted eye 2171 connected with lower seat 21 outer rim；The open-work 225 at the seat of honour 22 sets Put the slotted eye 2251 connected with outer rim；In the seat of honour 22, junction surface 227 is set；Positioning body 24 has a length more than the seat of honour 22 two the Location bar 244, one spring 245 of two sidewall 223 spacing, this location bar 244 2 end can embed open-work via slotted eye 2171,2251 225 and hole 217, location in, arrange in location bar 244 central authorities and can be easy to the lug 246 of hand-grip, this spring 245 2 end is respectively Engage with the junction surface 227 of location bar 244 and the seat of honour 22, and provide location bar 224 2 end can embed the elasticity in hole 217, location Power.

When adjusting corresponding hypomere 12 angle of epimere 11, can grasp lug 246 order location bar 244 depart from hole 217, location and Slotted eye 2171, and make the seat of honour 22 to pivot by corresponding lower seat 21, can be via slotted eye when adjusting to suitable angle order location bar 244 2171,2251 embed in the hole, location 217 of correspondence position, and effect of attainable cost utility model.

So from the above mentioned, this utility model Wheelchair back-rack adjusts holder structure and can have lying or leaning comfortableness concurrently and can convert into merit Effect, and this utility model has a preferable position stability than conventional construction, and the spring of the second embodiment of the present utility model One end engages with hinged arm 231, also can have offer location bar elastic force effect, and previous embodiment is that this utility model illustrates, Not this utility model limits, and all change according to the equivalence for it of this utility model spirit institute also should belong to this utility model category In.

Claims (10)

1. Wheelchair back-rack adjusts a holder structure, and this wheelchair rear has two backrests, and two backrests have upper and lower section, upper and lower intersegmental Adjustment seat is set, makes that backrest is fully deployed, adjust angle or equivalent, it is characterised in that this adjustment seat includes:

A time seat, lower section has lower junction surface, connects with the hypomere group of backrest, has fit portion, this fit above this lower junction surface Under portion's correspondence, junction surface axial location has fit slot, this fit slot towards a rear projection at least the first side wall, this first side Wall arranges the first articulated section, arranges hole, multiple location in the corresponding first articulated section Difference angles of the first side wall；

One seat of honour, top has the upper junction surface of the epimere combination with backrest, this has below junction surface and is placed in fit slot Location division, this location division is towards rear projection at least one second sidewall, and this second sidewall arranges the second articulated section, in the second side The corresponding aforementioned position of positioning hole of wall arranges open-work；

One pivoted body, with first articulated section at the seat of honour, the second articulated section pivot joint of lower seat；

One positioning body, is located at the position, location division at the seat of honour, with hole, location out of engagement with hole, location.

2. Wheelchair back-rack as claimed in claim 1 adjusts holder structure, it is characterised in that: this positioning body has determining of knee springing Position button, this navigation button convexedly stretches in outside open-work, with hole, location out of engagement with hole, location.

3. Wheelchair back-rack as claimed in claim 2 adjusts holder structure, it is characterised in that: when backrest is fully deployed, the most necessarily Hole, position engages with this positioning body.

4. Wheelchair back-rack as claimed in claim 2 adjusts holder structure, it is characterised in that: the fit slot of lower seat is towards side, rear two The first side wall that projection two is parallel, has opening between two the first side walls, the location division width at the seat of honour is less than aforementioned opening, this location Portion has two parallel second sidewalls towards rear.

5. Wheelchair back-rack as claimed in claim 2 adjusts holder structure, it is characterised in that: the first articulated section, the second pivot joint part Not having pivot hole, this pivoted body has a hinged arm, a packing button, and this hinged arm one end has threaded portion, and the location division at the seat of honour is located at Time in the fit slot of lower seat, this hinged arm interts the first articulated section, the second articulated section pivot joint, and this packing button connects with the threaded portion of hinged arm Close, make the first side wall, the second sidewall packing location.

6. Wheelchair back-rack as claimed in claim 4 adjusts holder structure, it is characterised in that: the location division at the seat of honour is ducted body, right Answer 2 second side wall centers positions that jack is set；This positioning body has two navigation buttons, arranges elastomer between two navigation buttons, this elasticity Body has bending section, and this bending section is located in the jack of location division, and makes two navigation buttons by the elasticity of elastomer respectively by two Second inside sidewalls interts open-work, makes navigation button convexedly stretch in outside open-work.

7. Wheelchair back-rack as claimed in claim 1 adjusts holder structure, it is characterised in that: outside the hole, location of lower seat is arranged with lower seat The slotted eye of edge connection；The open-work at the seat of honour arranges the slotted eye connected with outer rim；This keeper has a positioning rod, a spring, and this is fixed Position bar embeds in open-work and hole, location via slotted eye, and this spring provides location bar to embed the elastic force in hole, location.

8. Wheelchair back-rack as claimed in claim 7 adjusts holder structure, it is characterised in that: these location bar central authorities arrange lug.

9. Wheelchair back-rack as claimed in claim 7 adjusts holder structure, it is characterised in that: the fit slot of lower seat is towards side, rear two The first side wall that projection two is parallel, has opening between two the first side walls, the location division width at the seat of honour is less than aforementioned opening, this location Portion has two parallel second sidewalls towards rear, this location pole length be more than 2 second sidewall separation, this spring two end respectively with Location bar and the seat of honour engage.

10. Wheelchair back-rack as claimed in claim 7 adjusts holder structure, it is characterised in that: the first articulated section, the second pivot joint part Not having pivot hole, this pivoted body has a hinged arm, a packing button, and this hinged arm one end has threaded portion, and the location division at the seat of honour is located at Time in the fit slot of lower seat, hinged arm interts the first articulated section pivot, the second articulated section pivot joint, the threaded portion of this packing button and this hinged arm Engage, make the first side wall, the second sidewall packing location.