CN205469214U - Collapsible pushchair - Google Patents

Abstract

The utility model provides a collapsible pushchair, includes preceding link mechanism, back link mechanism, seat part, seatpad pole subassembly, back subtotal back pole subassembly. Preceding link mechanism includes the foreleg, and the foreleg has the upper end and installs the lower extreme of front wheel device. Back link mechanism includes the back leg, and the back leg has the upper end and installs the lower extreme of rear wheel device. Seatpad pole subassembly is used for supporting the seat part. Back pole subassembly is used for supporting the back part. When collapsible pushchair is removed to its fold condition from its development condition: the lower extreme of foreleg and the lower extreme move of back leg to the lower extreme that makes the foreleg is close to with the lower extreme of back leg each other, and the distance between the lower extreme of the lower extreme of foreleg and back leg reaches the minimum, and at this moment, the front wheel device of foreleg and the rear wheel device of back leg close up to mutual contact or close mutual the contact. The whole car in the folding back of collapsible pushchair is small, portable to can avoid better staiing.

Description

Foldable pushchair

Technical field

This utility model relates to stroller technical field, particularly to foldable pushchair.

Background technology

Existing stroller has a lot of style, including single formula stroller and double formula stroller, including single-wheel Formula stroller and pleiotaxy stroller, including holding pushing-type stroller and flat push type stroller etc..Consumer The stroller of different style can be selected according to the hobby of oneself and demand.

Placing for the ease of carrying and being easy to harvesting, people have devised foldable pushchair.City at present There is the most this stroller that can fold on field, differ from one another.Existing foldable pushchair is the most relatively Good foldover design scheme.Therefore, yet suffer from defect based on existing foldable pushchair, need into Row improves.

Utility model content

The open a kind of foldable pushchair of this utility model, to improve foldable structure, raising can be rolled over The serviceability of folded stroller.Described foldable pushchair includes: front rod mechanism, including at least one Foreleg, described foreleg has upper end and is provided with the lower end of front wheel device；Back link mechanism, including at least Article one, back leg, described back leg has upper end and is provided with the lower end of rear-wheel device；Described foreleg and described after The sum of lower limb is more than three；Seat part, for supplying baby's recumbency or being seated；Seat pillar assembly, uses In supporting described seat part；Back part, for for baby head or back against, or be used for supplying Baby head and back simultaneously against；Back support bar assembly, is used for supporting described back part；Connect before described Linkage, described back link mechanism, described backrest connecting rod mechanism and described seat pillar assembly are mutually hinged, And it is configured so that when described foldable pushchair is moved to its folded state from its deployed condition: institute State the lower end of foreleg and the lower end move toward one another of described back leg so that the lower end of described foreleg and described after The lower end of lower limb is close to each other, until the distance between lower end and the lower end of described back leg of described foreleg reaches Minima, now, the front wheel device of described foreleg and the rear-wheel device of described back leg close up to contacting with each other Or close to contacting with each other；The upper end of described foreleg and the upper end move toward one another of described back leg, and and backrest The upper end of part is close to each other.

Meanwhile, when described foldable pushchair is moved to its folded state from its deployed condition: described The distance of the front end of seat part and described back part minimizes value, the front of described seat part and The front of described back part is the most relative.

Additionally, in foldable pushchair: it is described that described foreleg includes that front-wheel support, front wheel device are arranged on Front-wheel support lower end；Described back leg includes that rear wheel support, rear-wheel device are arranged on described rear wheel support lower end； Described front-wheel support upper end and described rear wheel support upper end thereof.

Further in design foldable pushchair, described front rod mechanism also includes front rod, described before connect Bar lower end is hinged on described front-wheel support；Described back link mechanism also includes back link, described back link Lower end is hinged on described rear wheel support；The lower end of described back support bar assembly and described back link upper end thereof Together, and articulated position has locking device, by described locking device to back support bar assembly lower end Lock with back link upper end and unlock, and described foldable pushchair moves to from deployed condition The variation of folded state.Realize described foldable pushchair deployed condition by locking device to move and fold Stablizing of state.

Further in design foldable pushchair, described front rod upper end and described back link upper end thereof, And hinged with the lower end of described back support bar assembly, described locking device also simultaneously can be to described Front rod upper end locks with the hinged effect of described back link upper end and unlocks.

Further in design foldable pushchair, described front rod mechanism also includes end support member, the described end The lower end of support member is hinged on described front rod, and the upper end thereof of support member of the described end is at described seat pillar On assembly, thus provided at least part of active force supporting described seat pillar assembly by support member of the described end.

Further in design foldable pushchair, described foldable pushchair includes two described forelegs, institute State the footstool rail member that foldable pushchair also includes being connected between two described forelegs.

Further in design foldable pushchair, described foldable pushchair includes two described back legs, two Connect between individual described locking device and have the first reinforcing cross bar.

Further in design foldable pushchair, connect between two described rear wheel support lower ends and have second to add Gu cross bar.

Further in design foldable pushchair, described foldable pushchair also includes handrail, described handrail Front end is hinged on described foreleg, and described armrest rear end is hinged on described back support bar assembly.

Further in design foldable pushchair, when described foldable pushchair is in deployed condition, institute Stating back link mechanism and be positioned at below described seat part, described front rod mechanism connects described seat part Front end.

Further in design foldable pushchair, the front end of described seat pillar assembly and described front rod mechanism Hinged.

Further in design foldable pushchair, described back support bar assembly at least some of the most again simultaneously as Push rod.

Further in design foldable pushchair, described back support bar assembly includes Part I and Part II, Described Part II be used for supporting described seat part at least partially, described Part I pivotably or It is arranged on described Part II upper end with can stretching receipts.

Further in design foldable pushchair, front wheel device is universal wheel unit, and rear-wheel device is universal Wheel apparatus or directional wheel device.

Compare with existing foldable pushchair, in a kind of foldable pushchair disclosed in this utility model, Described foldable pushchair by when its deployed condition moves to its folded state, the lower end of described foreleg and The lower end move toward one another of described back leg, so that the lower end of the lower end of described foreleg and described back leg is mutually leaned on Closely.After folding completes, the distance between lower end and the lower end of described back leg of described foreleg minimizes value, Car load volume is little, and front wheel device and rear-wheel device adduct together as far as possible, meanwhile, and described foreleg The upper end move toward one another of upper end and described back leg, and close to each other with the upper end of back part, so that institute State foldable pushchair to close up, it is simple to carry as far as possible.Further, front wheel device and rear-wheel device close up to phase Touch or proximate to mutually contact with each other.And front wheel device and rear-wheel device are typically the part that car load is the dirtiest, After they being closed up, can avoid them that (other structure is such as needed most clean described seat as far as possible Part and described back part) stain, such that it is able to make car load preferably avoid staiing.Simultaneously as The dirtiest part adducts together, when carrying, it is also possible to preferably avoid foldable pushchair to other Things causes contamination.

Further, in the described foldable pushchair that this utility model is proposed, at described foldable pushchair By when its deployed condition moves to its folded state, the front end of described seat part and described back part Distance minimize value, the front of described seat part and the front of described back part are converted at least Relatively, the most described seat part and described back part protect the other side not stain to part each other, thus Preferably prevent seat part and back part from being stain.

Accompanying drawing explanation

Fig. 1 is the schematic side view of the foldable pushchair deployed condition disclosed in this utility model embodiment；

Fig. 2 is the schematic perspective view of the foldable pushchair deployed condition disclosed in this utility model embodiment；

Fig. 3 is the side that foldable pushchair shown in Fig. 1 starts folding back bar component process from deployed condition Depending on schematic diagram；

Fig. 4 is the side-looking after deployed condition completes folding back bar assembly of the foldable pushchair shown in Fig. 3 Schematic diagram；

Fig. 5 is the schematic side view that foldable pushchair shown in Fig. 4 continues after folding；

Fig. 6 is the schematic side view that foldable pushchair shown in Fig. 5 completes after folding；

Fig. 7 is the schematic side view that foldable pushchair shown in Fig. 6 starts to open at from folded state；

Fig. 8 is the schematic side view that foldable pushchair shown in Fig. 7 continues to open.

Detailed description of the invention

The open a kind of foldable pushchair of this utility model embodiment, incorporated by reference to reference to Fig. 1 and Fig. 2, Fig. 1 For the schematic side view of described foldable pushchair deployed condition, Fig. 2 is that described foldable pushchair launches The schematic perspective view of state.

As shown in Figures 1 and 2, described foldable pushchair include front rod mechanism (not having label), Back link mechanism (not having label), seat part (display the most in the various figures), seat pillar assembly 7, backrest Partly (display the most in the various figures) and back support bar assembly (not having label).Described front rod mechanism includes two Bar foreleg (does not has label), and described foreleg has upper end and is provided with the lower end of front wheel device 10.Described Back link mechanism includes two back legs (not having label), and described back leg has upper end and is provided with rear-wheel device The lower end of 11.

Seat pillar assembly 7 is used for supporting described seat part.Therefore, seat pillar assembly 7 and described seat Part is generally within identical horizontal level.Described seat part is fixed on seat pillar group by various modes On part 7, such as seam is rolled on seat pillar assembly 7 or is set on the first-class mode of seat pillar assembly 7.

Described back support bar assembly, is used for supporting described back part.Described back support bar assembly includes the first bar Section 1 and second bar segment 2, the second bar segment 2 be used for supporting described back part at least partially, i.e. described Back part is generally arranged between two parallel bar segment of the second bar segment 2 shown in Fig. 2.And the first bar The lower end of section 1 is arranged on the second bar segment 2 upper end with pivotably receiving.Concrete, the lower end of the first bar segment 1 It is hinged on the second bar segment 2 upper end by pin joint A.It should be noted that have at described back support bar assembly When body is used for supporting described back part, one or more gripper shoe (not shown) can be increased in Fig. 2 Between shown two the second bar segment 2 being parallel to each other, so that the supporting role of described back part is more preferable.

Pin joint A can be gear swivel joint, and can arrange gear locking at pin joint A Device (non-label, as shown in Figure 2).

In other embodiments, the first bar segment 1 is arranged on can also stretching receipts (can shrinking and extend) Second bar segment 2 upper end.In other words, the first bar segment 1 and the second bar segment 2 can as a total push rod, Meanwhile, the second bar segment 2 is again as the supporting construction of described back part.

In other embodiments, described back support bar assembly can be other structure, and equally with it extremely A few part is as push rod.

It should be noted that in each accompanying drawing of this specification, do not show described seat part, however, it is possible to Understanding, described seat part is for supplying baby's recumbency or being seated.Therefore, described seat part can be soft Soft various materials are made, such as canvas, combination of canvas and sponge etc..

It should be noted that in each accompanying drawing of this specification, do not show described back part, however, it is possible to Understand, described back part for for baby head or back against, or for for baby head and the back of the body Portion simultaneously against.Therefore, the material of described back part is the most varied, and equally Various ways is used to be fixed on described back support bar assembly.

As depicted in figs. 1 and 2, described foreleg includes that front-wheel support 6, front wheel device 10 are arranged on front-wheel Support 6 lower end.Front-wheel support 6 has two sections, and two sections have altogether pin joint E, pin joint G and hinged Point tri-pin joints of F.F point is the upper extreme point of front-wheel support 6, and pin joint G is described foldable pushchair During deployed condition, a summit of front-wheel support 6.Pin joint G is the separation of described two sections simultaneously, Being i.e. the first paragraph of front-wheel support 6 between pin joint G and pin joint F, other parts are second segment.The Two-stage nitration from pin joint G until front-wheel support 6 lower end.And pin joint E is positioned in second segment, and cut with scissors The position of the closer front wheel device of contact E 10, pin joint E is positioned at second segment the most about 1/3rd Place.

In other embodiments, front-wheel support 6 can also be other shapes.

As depicted in figs. 1 and 2, described back leg includes that rear wheel support 4, rear-wheel device 11 are arranged on trailing wheel Support 4 lower end.Rear wheel support 4 can also be divided into two sections, and two sections have pin joint D and pin joint F Two pin joints.Pin joint F is also the upper extreme point of rear wheel support 4.Understand, front-wheel support 6 upper end with Rear wheel support 4 upper end thereof is at pin joint F.The described first paragraph that rear wheel support 4 starts from pin joint F is Reclinate part, the crooked radian correspondence center of circle is in its lower left, so that rear wheel support 4 energy Enough bear bigger downward pressure.Part II, as it is shown in figure 1, be the part of oblique lower right-hand side, cuts with scissors Contact D is located substantially at the centre position of Part II.

In other embodiments, rear wheel support 4 can also be other shapes.

Incorporated by reference to reference to Fig. 1 and Fig. 2, described foldable pushchair also includes handrail 8, and handrail 8 front end is cut with scissors It is connected on described foreleg top (may not be top in other embodiments), and is to be hinged on pin joint G, I.e. pin joint G shares rotary structure in the end of front-wheel support 6 and handrail 8, and (described rotational structure can Think rotary shaft).Handrail 8 rear end is hinged on described back support bar assembly, is specifically hinged on shown in Fig. 1 Pin joint B.

Incorporated by reference to reference to Fig. 1 and Fig. 2, described front rod mechanism also includes front rod 5, front rod 5 lower end It is hinged on front-wheel support 6 by pin joint E.The shape of front rod 5 can be divided into two sections, in Fig. 1 institute Under the deployed condition shown, first paragraph is horizon bar (not having label), second segment for be tilted towards top-right directly Bar (does not has label).In other embodiments, front rod 5 can also be other shape, the most described second Section can also be for the bar of bending.

Incorporated by reference to reference to Fig. 1 and Fig. 2, described back link mechanism also includes back link 3, back link 3 lower end It is hinged on rear wheel support 4 by pin joint D.Back link 3 be shaped as straight-bar, and in Fig. 1 institute Under the deployed condition shown, for heeling condition.In other embodiments, back link 3 can also be other shape, Such as can also be for the bar of bending.

Incorporated by reference to reference to Fig. 1 and Fig. 2, described back support bar assembly lower end and back link 3 upper end thereof are hinged At some C, and the pin joint C of articulated position, there is locking device (locking device not to be marked by accompanying drawing Number, but it is expressed as the small circle around pin joint C), described locking device can be to described back support bar assembly Lower end and back link 3 upper end carry out locking and unblock effect, thus realize described foldable baby car exhibition Open state moves and the stablizing of folded state, and described foldable pushchair moves to folding from deployed condition The variation of overlapping state.This specification is follow-up be will be further illustrated.

In the present embodiment, front rod 5 upper end and back link 3 upper end are also articulated to pin joint C, and, hinge Locking device at contact C, simultaneously can also be to the hinged work of front rod 5 upper end Yu back link 3 upper end With locking and unlocking.

In the present embodiment, car load has three quadric chains linked, and (this specification is follow-up will be further Illustrate), now, as long as described back support bar assembly lower end is locked with back link 3 upper end thereof position (i.e. As long as there being a quadric chain to be locked), other two quadric chains, all without being rotated further by, therefore may be used With locking device described in only one of which, it becomes possible to make deployed condition and the rugosity of described foldable pushchair State all keeps stable.This specification is follow-up be will be further illustrated.

Incorporated by reference to reference to Fig. 1 and Fig. 2, the lower end of described back support bar assembly and front rod 5 upper end and back link 3 upper ends are the most hinged, and i.e. they are hinged on pin joint C jointly, and described back support bar assembly Lower end is acted on by locking action and the unblock of described locking device simultaneously.

It should be noted that in other embodiments, it is also possible to other lock is set at other pin joint Determine device.

Incorporated by reference to reference to Fig. 1 and Fig. 2, described front rod mechanism also includes end support bar 9, end support bar 9 Lower end be hinged on front rod 5, the upper end thereof of end support bar 9 on seat pillar assembly 7, thus At least part of active force supporting seat pillar assembly 7 is provided by end support bar 9.Concrete, the end, supports The lower end of bar 9 is hinged on the second segment of front rod 5, and, it is positioned at described second segment from described first The position that section is nearer, concrete pin joint is as shown in the pin joint H in Fig. 1.The upper end hinge of end support bar 9 Being connected on the seat pillar assembly 7 pin joint I position near rear end, so, seat pillar assembly 7 passes through The strong point load-bearing that pin joint I and pin joint G two is distant, more firm.

Refer to Fig. 2, described foldable pushchair includes two described back legs, therefore, it can there are two positions In the described locking device of pin joint C, and between two described locking devices, connection has the first reinforcing horizontal Bar 13 (first reinforce cross bar 13 Fig. 2 correspondence position evident from), i.e. first reinforces cross bar 13 connects Between two pin joint C.Meanwhile, between two rear wheel support 4 lower ends, connection has the second reinforcing cross bar 14 (second reinforce cross bar 14 Fig. 2 correspondence position evident from).

It should be strongly noted that in other embodiments, two described back legs can also only have described in one Having described locking device at the pin joint C of back leg, the most whole described foldable pushchair can only have one Individual or have multiple described locking device, this is not construed as limiting by this utility model.

Refer to Fig. 2, described foldable pushchair includes two described forelegs, and described foldable pushchair is also Including the footstool rail member 12 being connected between two described forelegs, (footstool rail member 12 is at Fig. 2 pair Answer position evident from).Footstool rail member 12 is except can be used in propping up baby's bound feet, additionally it is possible to rise To be similar to above-mentioned two reinforce cross bar effect, i.e. described foldable pushchair is played reinforcement effect, Make described foldable pushchair more firm.

It should be noted that owing to Fig. 1 is side view, therefore Fig. 1 fails to show footstool rail member 12, first reinforcing cross bar 13 and the second reinforcing cross bar 14, these three structure shows the most in fig. 2. In other embodiments, footstool rail member 12, first reinforces cross bar 13 and the second reinforcing cross bar 14 also may be used To omit, or footstool rail member 12, first can also be only had to reinforce cross bar 13 and the second reinforcing cross bar Any one in 14 threes, or footstool rail member 12, first can also be only had to reinforce cross bar 13 Any two in cross bar 14 three is reinforced with second.

From the foregoing, in the present embodiment, described foldable pushchair includes two described forelegs and two Described back leg.In other embodiments, described foldable pushchair can also be include two described forelegs and Article one, described back leg, or described foldable pushchair can also be to include a described foreleg and two institutes State back leg, or described foldable pushchair can also be to include more described foreleg and described back leg. Have only to ensure existing described foreleg have again a described back leg, and described foreleg and the sum of described back leg It it is more than three.

Incorporated by reference to reference to Fig. 1 and Fig. 2, when described foldable pushchair is in deployed condition, described after connect Linkage is positioned at below described seat part, i.e. rear wheel support 4, rear-wheel device 11 and back link 3 all positions Below described seat part, that is it is positioned at below seat pillar assembly 7.

Incorporated by reference to reference to Fig. 1 and Fig. 2, when described foldable pushchair is in deployed condition, described before connect The top (may not be top in other embodiments) of linkage connects the front end of described seat part, The front end of seat pillar assembly 7 (can also in other embodiments with the top of described front rod mechanism in other words It is not top) hinged.Concrete, understanding due to noted earlier, described foldable pushchair includes two Described foreleg, therefore, has two pin joint G.A cross bar is connected between two pin joint G, as Described in Fig. 2, described cross bar is a part for seat pillar assembly 7, and is fore-end.Then, Other partial responses of seat pillar assembly 7 are connected on described cross bar, now, and the most described seat part Front end is connected to the top of described front rod mechanism, and (described top is pin joint G position, and other is real Execute and example may not be top).

Incorporated by reference to reference to Fig. 1 and Fig. 2, front wheel device 10 can be universal wheel unit, and front wheel device 10 is solid It is scheduled on front-wheel support 6 lower end, can be with freely rotatable direction.Rear-wheel device 11 can be directional wheel device, Described directional wheel device can rotate towards direction of advance or direction of retreat.

In other embodiments, front wheel device 10 can be universal wheel unit, and rear-wheel device 11 can also be Universal wheel unit.Front wheel device 10 is fixed on front-wheel support 6 lower end, can be with freely rotatable direction.Trailing wheel Device 11 is fixed on rear wheel support 4 lower end, it is also possible to freely rotatable direction.

It should be noted that in the present embodiment, above-mentioned pin joint A, pin joint B, pin joint C, hinged In some D, pin joint E, pin joint F, pin joint G, pin joint H and pin joint I, each bar etc. is tied Between structure at described each pin joint, can be connected by rivet or pin, make the structures such as each bar respectively Can reach at individual pin joint rotate effect accordingly or pivot effect.

In the described foldable pushchair that this utility model is proposed, owing to having said structure, therefore, Can move to folded state from deployed condition, same, it is also possible to move deployed condition from folded state. Concrete, as shown in the above, described front rod mechanism, described back link mechanism, described backrest are even Linkage and seat pillar assembly 7 are mutually hinged, and be configured so that described foldable pushchair by from When its deployed condition moves to its folded state: the lower end of described foreleg and the lower end of described back leg are transported in opposite directions Dynamic, so that the lower end of the lower end of described foreleg and described back leg is close to each other, until under described foreleg Distance between end and the lower end of described back leg minimizes value, now, and the front wheel device 10 of described foreleg Close up to contacting with each other or close to contacting with each other with the rear-wheel device 11 of described back leg.

The lower end of foreleg described above and the lower end move toward one another of described back leg, be specifically as follows: before described The lower end of lower limb to intermediary movements, the lower end of described back leg to intermediary movements, until the lower end of described foreleg and Distance between the lower end of described back leg minimizes value.Can also be that the lower end of described foreleg is after described The lower end of lower limb is close, until the distance between lower end and the lower end of described back leg of described foreleg minimizes Value.The lower end that can also be described back leg is close to the lower end of described foreleg, until the lower end of described foreleg With the distance between the lower end of described back leg minimizes value.The lower end of foreleg described above and described back leg Lower end between distance minimize value, refer under usual service condition, the lower end of described foreleg and institute State the minimum range that the lower end of back leg can reach.

In the described foldable pushchair that this utility model is proposed, the lower end of described foreleg and institute after folding Stating the distance between the lower end of back leg and minimize value, car load volume is little, and front wheel device 10 and trailing wheel Device 11 adducts together as far as possible, meanwhile, and the upper end of described foreleg and the upper end move toward one another of described back leg, And close to each other with the upper end of back part, so that described foldable pushchair closes up as far as possible, it is simple to take Band.Further, front wheel device 10 and rear-wheel device 11 close up to contacting with each other or close to contacting with each other, And front wheel device 10 and rear-wheel device 11 are typically the part that car load is the dirtiest, after they are closed up, permissible Avoid them by other structure (such as needing most clean described seat part and described back part) as far as possible Stain, such that it is able to make car load preferably avoid staiing.Simultaneously as the dirtiest part adducts together, When carrying, it is also possible to preferably avoid foldable pushchair that other things is caused contamination.

Further, in the described foldable pushchair that this utility model is proposed, at described foldable pushchair By when its deployed condition moves to its folded state, the front end of described seat part and described back part Distance minimize value, the front of described seat part and the front of described back part are converted at least Relatively, the most described seat part and described back part protect the other side not stain to part each other, thus Preferably prevent seat part and back part from being stain, further increase the performance that car load is avoided staiing.

Below with Fig. 1 to Fig. 8 illustrate described foldable pushchair from deployed condition to folded state, and Change procedure from folded state to deployed condition.

Fig. 1 and Fig. 2 shows the deployed condition of described foldable pushchair, at described foldable pushchair When deployed condition, it has been mentioned hereinbefore that be provided with described gear locking device at pin joint A, therefore, First bar segment 1 and the second bar segment 2, when deployed condition shown in Fig. 1, are locked by described gear locking device. Same, the second bar segment 2 relatively rotates relation with back link 3 in the existence of junction pin joint location of C, But it has been mentioned hereinbefore that the pin joint C of the second bar segment 2 and back link 3 junction is provided with locking device, Described locking device is equally gear locking device.Therefore, it is in exhibition when described foldable pushchair During open state, the described locking device being positioned at pin joint C can lock automatically (it is of course also possible to set It is set to manual locking), thus stop relatively rotating between the second bar segment 2 and back link 3, whole described Foldable pushchair is in stable deployed condition.

Seen from the above description, in the described foldable pushchair that this utility model is proposed, whole formation The rotating mechanism of linkage.For convenience of describing, whole link gears can be divided into three quadric chains after decomposing, First quadric chain being made up of pin joint C, pin joint D, pin joint E and pin joint F respectively, It is called for short quadric chain CDEF；Pin joint B, pin joint C, pin joint E and the second of pin joint G composition Individual quadric chain, is called for short quadric chain BCEG；And pin joint G, pin joint I, pin joint H and The 3rd quadric chain that pin joint E is constituted, is called for short quadric chain GIHE.

It should be strongly noted that in other embodiments of the present utility model, described locking device is arranged Any one pin joint at above-mentioned each quadric chain can realize the expansion of described foldable pushchair State and folded state are stable, and this is not construed as limiting by this utility model.

Described foldable pushchair is converted into folded state (such as Fig. 5 from deployed condition (as shown in Figure 1) Shown in) step, refer to change procedure as shown in Figures 1 to 6.

First, in the described foldable pushchair of deployed condition shown in Fig. 1 and Fig. 2, by pin joint A The described locking device at place unlocks.

Then, as it is shown in figure 1, apply power F1 at the first bar segment 1, the first bar segment 1 is in the effect of power F1 Under, can rotate along pin joint A clockwise, rotation direction is as shown in the curved arrow in Fig. 3.Need Bright, power F1 is the most only the display of one of them moment, and the direction of power F1 is along with the first bar The rotation of section 1 and change, and the size of power F1 can also change constantly.First bar segment 1 Turning to position shown in Fig. 4, now the first bar segment 1 adducts together with the second bar segment 2.

Afterwards, the described locking device at pin joint C is unlocked.After unblock, apply at pin joint C Power F2, now pin joint C can be moved with putting forth effort F2.It should be noted that power F2 at Fig. 4 and Being the most only the display of one of them moment in Fig. 5, the direction of power F2 can change, and power F2 Size can also constantly change.When pin joint C with put forth effort F2 be moved time, quadric chain CDEF is moved, and now front rod 5 moves along F2 direction and can pull front-wheel support 6, front-wheel support 6 Draw close, as shown in Figure 5 around pin joint F rear wheel support 4.

Pin joint C while moving along F2 direction, quadric chain BCEG and quadric chain GIHE Also can rotate (i.e. three quadric chains are moved the most simultaneously) simultaneously, in quadric chain BCEG, Pin joint C moves with the direction putting forth effort F2, and pin joint G and pin joint C 2 spacing becomes larger, Pin joint B and pin joint E is made gradually to come closer, as shown in Figure 5.In quadric chain GIHE, front Wheel support 6 and front rod 5 rotational angle at pin joint E becomes larger, pin joint H and pin joint G 2 can be moved the most round about, make pin joint E and two pin joints of pin joint I to close direction Draw close.

While above three parallel motion, continue to power F2, as shown in Figure 6, until Each quadric chain draws position shown in Fig. 6 in, and now, front wheel device 10 leans on rear-wheel device 11 After holding together, complete the folding to described foldable pushchair, make described foldable pushchair be in folded state.

Can it is seen from figure 6 that, the distance between lower end and the lower end of described back leg of described foreleg reaches Distance between little value, that is front wheel device 10 and rear-wheel device 11 minimizes value.Now, front-wheel Device 10 and rear-wheel device 11 close up to contacting with each other or (showing front-wheel in Fig. 6 close to contacting with each other Device 10 and rear-wheel device 11 are close to contacting with each other, but in other embodiments, both can also directly connect Touch).

During above-mentioned converting into, the position that can fix front wheel device 10 is motionless, and other structure is transported Dynamic, it is also possible to the position of fixing rear-wheel device 11 is motionless, and the carrying out of other structure moves.Can also be without solid Fixed any position, whole foldable pushchair converts into.

When described foldable pushchair is in folded state, as shown in Figure 6, the front end of described seat part (although described seat part does not shows, but described seat part is fixed on seat pillar assembly 7, therefore, The front end of described seat part can be understood as the front end of seat pillar assembly 7, being shown as hinged in figure 6 Point G position) with described back part (although described back part does not shows, but according to front Description is apparent from, and described back part is fixed on pin joint A shown in Fig. 6 and the second bar between pin joint B In section 2) distance minimize value, the front folding of the front of described seat part and described back part (this relatively can be by seat pillar assembly 7 in Fig. 6 and the second basic phase of bar segment 2 relatively to be blended into small part To learning), the most described seat part and described back part protect the other side not stain each other, thus more Good prevent seat part and back part are stain.

In Fig. 6, front wheel device 10 is positioned at rear-wheel device 11 oblique upper, and this mode is advantageously in institute State foldable pushchair and be folded into greater compactness of structure.

It should be noted that now, equally arrange and make the described locking device of pin joint C can Lock, so that the folded state of described foldable pushchair keeps stable.It is of course also possible to adopt Make the folded state of described foldable pushchair keep stable by other method, such as, increase after folding is set The methods such as the bundling belt used and button structure.

By described foldable pushchair from folded state be opened into the step of deployed condition refer to as Fig. 6 to Change procedure shown in Fig. 8, described process is the inverse process that said process converts into process.

As shown in Figure 6, applying power F3 at pin joint C, pin joint C is along F3 (power F3 and power F2 Process is contrary) direction moves (it should be noted that power F3 is the most only one of them The display of moment, the direction of power F3 can change, and the size of power F3 can also occur in the moment Change), above three quadric chain just all can operate simultaneously.

In quadric chain CDEF, back link 3 rotates counterclockwise around pin joint D, as it is shown in fig. 7, Rotation direction is as shown in the curved arrow in Fig. 7.Front rod 5 also can move along F3 direction.Now, front Wheel apparatus 10 and rear-wheel device 11 will move the most round about.

In quadric chain BCEG, while pin joint C moves along F3 direction, gradually to pin joint G Draw close.Front rod 5 rotates counterclockwise around pin joint E, now in quadric chain GIHE, and pin joint H on front rod 5, front rod 5 when pin joint E rotates counterclockwise, pin joint H and pin joint G two Point distance gradually shortens, and the distance of pin joint I and pin joint E 2 will become larger.Now, whole Individual vehicle frame will slowly open.

Continue to power F3, vehicle frame is opened to position shown in Fig. 8.Continue to apply in the first bar segment 1 Power F4 (power F4 is contrary with the process of power F1), the first bar segment 1 can rotate counterclockwise to figure around pin joint A 1 (incorporated by reference to reference to Fig. 8 and Fig. 1) position locks (it should be noted that power F4 is the most only it In the display of a moment, the direction of power F4 changes along with the rotation of the first bar segment 1, and power The size of F4 can also change constantly), the now gear locking between the second bar segment 2 and back link 3 Device also can lock automatically, stops the operating of linkage, completes vehicle frame opening procedure.Now, whole Described foldable pushchair recovers to the stable deployed condition shown in Fig. 1.

During above-mentioned expansion, the position that can fix front wheel device 10 is motionless, and other structure is transported Dynamic, it is also possible to the position of fixing rear-wheel device 11 is motionless, and the carrying out of other structure moves, it is also possible to not solid Fixed any position, whole foldable pushchair launches.

This utility model discloses specific embodiment as above, but this utility model is not limited to this, Ren Heben Skilled person is without departing from this utility model scope, and it is new that the change made belongs to this practicality Type protection scope, therefore, protection domain of the present utility model with claim in the range of standard.

Claims (15)

1. a foldable pushchair, described foldable pushchair can move to folded state from deployed condition, It is characterized in that, described foldable pushchair includes:

Front rod mechanism, including at least one foreleg, described foreleg has upper end and is provided with front wheel device Lower end；

Back link mechanism, including at least one back leg, described back leg has upper end and is provided with rear-wheel device Lower end；

The sum of described foreleg and described back leg is more than three；

Seat part, for supplying baby's recumbency or being seated；

Seat pillar assembly, is used for supporting described seat part；

Back part, for for baby head or back against, or for for baby head and back with Time against；

Back support bar assembly, is used for supporting described back part；

Described front rod mechanism, described back link mechanism, described backrest connecting rod mechanism and described seat pillar Assembly is mutually hinged, and is configured to be moved to it from its deployed condition at described foldable pushchair During folded state:

The lower end of described foreleg and the lower end move toward one another of described back leg so that the lower end of described foreleg and The lower end of described back leg is close to each other, now, and the front wheel device of described foreleg and the trailing wheel dress of described back leg Put and close up to contacting with each other or close to contacting with each other；

The upper end of described foreleg and the upper end move toward one another of described back leg, and mutual with the upper end of back part Close.

Foldable pushchair the most according to claim 1, it is characterised in that at described foldable pushchair By when its deployed condition moves to its folded state: the front end of described seat part and described back-rest The upper end divided is mutually close, the front of described seat part and at least part of phase in front of described back part Right.

Foldable pushchair the most according to claim 1 and 2, it is characterised in that:

Described foreleg includes that front-wheel support, front wheel device are arranged on described front-wheel support lower end；

Described back leg includes that rear wheel support, rear-wheel device are arranged on described rear wheel support lower end；

Described front-wheel support upper end and described rear wheel support upper end thereof.

Foldable pushchair the most according to claim 3, it is characterised in that:

Described front rod mechanism also includes that front rod, described front rod lower end are hinged on described front-wheel support；

Described back link mechanism also includes that back link, described back link lower end are hinged on described rear wheel support；

The lower end of described back support bar assembly is together with the upper end thereof of described back link, and articulated position is provided with Locking device, by upper to the lower end of described back support bar assembly and described back link of described locking device The hinged of end locks and unlocks, it is achieved described foldable pushchair moves to fold from deployed condition The variation of state.

Foldable pushchair the most according to claim 4, it is characterised in that described front rod upper end and institute State back link upper end thereof together, and hinged with the lower end of described back support bar assembly, logical Cross described locking device the hinged effect of described front rod upper end with described back link upper end is locked And unblock.

Foldable pushchair the most according to claim 5, it is characterised in that described front rod mechanism also wraps Including end support member, the lower end of support member of the described end is hinged on described front rod, support member of the described end Upper end thereof is on described seat pillar assembly, thus is provided by support member of the described end and support described seat cushion At least part of active force of bar assembly.

Foldable pushchair the most according to claim 6, it is characterised in that described foldable pushchair bag Including two described forelegs, described foldable pushchair also includes the foot being connected between two described forelegs Stool rail member.

Foldable pushchair the most according to claim 7, it is characterised in that described foldable pushchair bag Including two described back legs, connecting between two described locking devices has the first reinforcing cross bar.

Foldable pushchair the most according to claim 8, it is characterised in that under two described rear wheel supports Connect between end and have the second reinforcing cross bar.

Foldable pushchair the most according to claim 9, it is characterised in that described foldable baby Car also includes that handrail, described handrail front end are hinged on described foreleg, and described armrest rear end is hinged on institute State on back support bar assembly.

11. foldable pushchairs according to claim 10, it is characterised in that described collapsible baby When youngster's car is in deployed condition, described back link mechanism is positioned at below described seat part, described before connect Linkage connects the front end of described seat part.

12. foldable pushchairs according to claim 11, it is characterised in that described seat pillar assembly Front end hinged with described front rod mechanism.

13. foldable pushchairs according to claim 1 and 2, it is characterised in that described back support bar Assembly at least some of again simultaneously as push rod.

14. foldable pushchairs according to claim 13, it is characterised in that described back support bar assembly Including Part I and Part II, being used at least partially of described Part II supports described seat Part, described Part I is arranged on described Part II upper end with the most maybe can stretching receipts.

15. foldable pushchairs according to claim 1 and 2, it is characterised in that front wheel device is Universal wheel unit, rear-wheel device is universal wheel unit or directional wheel device.