CN201405909Y

CN201405909Y - baby stroller

Info

Publication number: CN201405909Y
Application number: CN2009200002834U
Authority: CN
Inventors: 陈宏波; 王志伟
Original assignee: Baoju Industrial Co ltd
Current assignee: Baoju Children Products Hong Kong Co Ltd
Priority date: 2009-01-19
Filing date: 2009-01-19
Publication date: 2010-02-17
Anticipated expiration: 2019-01-19

Abstract

The utility model relates to a baby stroller, which comprises a pair of front foot tubes, a pair of rear foot tubes, a frame formed by the common pin joint of the front foot tubes and the rear foot tubes, and a plurality of wheels which are respectively pivoted on the positions near the bottom ends of the front foot tubes and the rear foot tubes by a wheel axle. The quick-release shock-absorbing unit comprises a seat body which is arranged on a wheel shaft and can be used for the bottom end of the foot tube to penetrate, a clamping piece which is detachably arranged in the seat body, and an elastic element which is arranged in the bottom end of the foot tube and is connected between the foot tube and the clamping piece. Therefore, the shock-absorbing effect can be provided, the wheel can be quickly detached from the foot tube, the whole volume of the folded vehicle body is effectively reduced, and the space is saved.

Description

Baby stroller

Technical field

The utility model relates to a kind of baby stroller, particularly relates to a kind of wheel mechanism that is applicable to baby stroller.

Background technology

If well-known is that baby stroller runs into the road surface when uneven in traveling process, can cause baby stroller to produce and rock concussion, not only can allow outside the infant that takes do not feel well, even can allow the infant in being sunk into sleep revive, cause the head of a family's puzzlement.Therefore have the dealer to expect and will be arranged with a spring at the vehicle frame body positon of near bottom that connects wheel, for example U.S. US20030230871A patent case promptly is.In addition, also have spring is arranged at two relative wheel hub places, as U.S. US6,499,749B2 patent case.Buffering when utilizing spring that the wheel vibrations are provided whereby.Yet being seen in the past baby stroller there is no the design of fast assembling-disassembling, just the wheel shockproof mechanism can only be done and folds along with vehicle frame together with wheel, overall volume after so baby stroller folds is quite huge and take up space, and more can cause the puzzlement of manufacturer in carrying.This shows that above-mentioned existing baby stroller obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of baby stroller of new structure, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.

Because the defective that above-mentioned existing baby stroller exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and expertise, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of baby stroller of new structure, can improve general existing baby stroller, make it have more practicality.Through constantly research, design, and, create the utility model that has practical value finally through after studying sample and improvement repeatedly.

Summary of the invention

The purpose of this utility model is, overcome the defective that existing baby stroller exists, and provide a kind of baby stroller of new structure, technical matters to be solved is to make wheel separate the pin pipe fast, overall volume after allowing car body fold is effectively dwindled, with the saving space,, be very suitable for practicality.

Another purpose of the present utility model is, a kind of baby stroller of new structure is provided, and technical matters to be solved is to make it have shock-proof effect.

The purpose of this utility model and to solve its technical matters be to adopt following technical scheme to realize.A kind of baby stroller according to the utility model proposes includes a vehicle frame with a plurality of pin pipes and a plurality of wheels; This baby stroller comprises: at least one quick detach shock-absorbing unit, described quick detach shock-absorbing unit comprises that one is pivoted to a wheel and its upper end and pedestal, that a pin pipe box connects and is contained in described pin pipe lower end in order to combining the holding piece of described pin pipe and described pedestal, and one is contained in described pin pipe lower end and can provides described pedestal one to cushion the elastic element of elastic force; Described holding piece has an engagement section, and described pin pipe removably combines with described pedestal by described engagement section.

The purpose of this utility model and solve its technical matters and can also be further achieved by the following technical measures.

Preferably, aforesaid baby stroller, wherein said quick detach shock-absorbing unit also comprises two locationss, described pin pipe has a pair of perforation and a pair of slotted hole that is formed on the diameter two ends accordingly, described two locationss run through this a pair of perforation and a pair of slotted hole respectively, described elastic element is between described two locationss, and the two ends of described elastic element are connected to described two locationss respectively.

Preferably, aforesaid baby stroller, wherein said pedestal comprises one first housing parts and one second housing parts, described first housing parts defines one can be for the grafting passage of ccontaining described pin pipe, described second housing parts laterally in abutting connection with described first housing parts, one side and define one can be for the pivoted hole of a wheel shaft that articulates described wheel.

Preferably, aforesaid baby stroller, its also include one be hubbed at described pedestal second housing parts and can be described relatively the brake unit that pivots of pedestal.

Preferably, aforesaid baby stroller, the bottom of wherein said first housing parts also defines a shell chamber that is positioned at this grafting channel interior, and the roof of described shell chamber has a through hole and diapire and opens wide to described pedestal is outside.

Preferably, aforesaid baby stroller, wherein said holding piece is the pin pipe joint seat that is contained in the described grafting passage for, described engagement section is a pair of elasticity pawl with barb for this pin pipe joint seat lower end, and described elasticity pawl is in order to interfere locking with described pedestal behind the through hole that passes this shell chamber.

Preferably, aforesaid baby stroller, wherein said holding piece are to be positioned between described elastic element and described pedestal.

Preferably, aforesaid baby stroller, wherein said elastic element are to be positioned between described holding piece and described pedestal.

Preferably, aforesaid baby stroller forms a lock hole on wherein said first housing parts.

Preferably, aforesaid baby stroller, wherein said holding piece are one to be contained in the V-arrangement spring leaf in the described pin pipe, and an arm of described V-arrangement spring leaf is provided with pushes protuberance, and the described protuberance of pushing passes described lock hole and is stretched on outside the described pin pipe.

The utility model compared with prior art has tangible advantage and beneficial effect.By above technology contents as can be known, for achieving the above object, the utility model provides a kind of baby stroller, includes a vehicle frame with a plurality of pin pipes and a plurality of wheels; It is characterized in that: also include: at least one quick detach shock-absorbing unit, described quick detach shock-absorbing unit comprises that one is pivoted to a wheel and its upper end and pedestal, that a pin pipe box connects and is contained in described pin pipe lower end in order to combining the holding piece of described pin pipe and described pedestal, and one is contained in described pin pipe lower end and can provides described pedestal one to cushion the elastic element of elastic force; Described holding piece has an engagement section, and described pin pipe removably combines with described pedestal by described engagement section.

Preferably, described quick detach shock-absorbing unit also comprises two locationss, described pin pipe has a pair of perforation and a pair of slotted hole that is formed on the diameter two ends accordingly, described two locationss run through this a pair of perforation and a pair of slotted hole respectively, described elastic element is positioned between described two locationss, and the two ends of described elastic element are connected to described two locationss respectively.

In addition, described pedestal comprises one first housing parts and one second housing parts, described first housing parts defines one can be for the grafting passage of ccontaining described pin pipe, described second housing parts laterally in abutting connection with described first housing parts, one side and define one can be for the pivoted hole of a wheel shaft that articulates described wheel.

More preferably, also include one be hubbed at described pedestal second housing parts and can be described relatively the brake unit that pivots of pedestal.

By technique scheme, the utility model baby stroller has following advantage and beneficial effect at least: beneficial functional of the present utility model is to be that elastic acting force by elastic element is to provide shock-proof effect, as long as and separate the interference effect of described holding piece of pulling for described pedestal, can make described pin pipe break away from pedestal and wheel together with described elastic element and described holding piece, overall volume after allowing car body fold is effectively dwindled, and then can save the space.

In sum, the utility model has obvious improvement technically, and has tangible good effect, really is a new and innovative, progressive, practical new design.

Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification sheets, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.

Description of drawings

Fig. 1 is the schematic perspective view of the utility model baby stroller first preferred embodiment.

Fig. 2 is the exploded schematic perspective view of the utility model first preferred embodiment, shows the structure before quick detach shock-absorbing unit, brake unit and pin pipe do not make up, and only shows a wheel.

Fig. 3 is the part unitized construction cutaway view of the utility model first preferred embodiment, shows the unitized construction of quick detach shock-absorbing unit and pin pipe, and this moment, the clip pin of holding piece was the wall place, location that clip is positioned described pedestal.

Fig. 4 is another part cutaway view of the utility model first preferred embodiment, shows that the clip pin of holding piece breaks away from the location wall of described pedestal.

Fig. 5 is another angle part sectional view of the utility model first preferred embodiment, shows quick detach shock-absorbing unit and the structure of brake unit assembly on the pin pipe.

Fig. 6 is the another angle part sectional view of the utility model first preferred embodiment, shows to be provided with the space that can supply locations to slide in the described pedestal.

Fig. 7 is the brake view of the utility model first preferred embodiment.

Fig. 8 is the exploded schematic perspective view of the utility model baby stroller second preferred embodiment.

Fig. 9 is the local unitized construction cutaway view of the utility model second preferred embodiment, shows that the protuberance of pushing of holding piece is stretched the lock hole that places pedestal.

Figure 10 is an action cutaway view of described second preferred embodiment, the lock hole that protuberance is recessed pedestal of pushing of holding piece is described, and the rear foot tube part is drawn out outside the pedestal.

Figure 11 is another action cutaway view of described second preferred embodiment, shows that the protuberance of pushing of holding piece is drawn out outside the pedestal.

The specific embodiment

For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to its specific embodiment of baby stroller, structure, feature and the effect thereof that the utility model proposes, describe in detail as after.

Relevant aforementioned and other technology contents, characteristics and effect of the present utility model can clearly present in the following detailed description that cooperates with reference to graphic preferred embodiment.Before the utility model is described in detail, be noted that in the following description content similar elements is to represent with identical numbering.

See also shown in Fig. 1,2, Fig. 1 is the schematic perspective view of the utility model baby stroller first preferred embodiment, Fig. 2 is the exploded schematic perspective view of the utility model first preferred embodiment, show the structure before quick detach shock-absorbing unit, brake unit and pin pipe do not make up, and only show a wheel.The baby stroller 3 of the utility model one preferred embodiment includes a vehicle frame 31, and described vehicle frame 31 has a pair of front foot pipe 32 and a pair of rear foot tube 33, and most are borrowed forward and backward

pin pipe

32,33 to be hubbed on the wheel 35 of vehicle frame 31 bottoms respectively.In the present embodiment, the left and right side of each forward and backward

pin pipe

32,33 positon of near bottom all articulates a wheel 35 (wheel 35 only draws among the figure) respectively by means of a wheel shaft (figure do not show), can certainly be the single side wheel 35 that is pivoted.In addition, also be provided with a portion of taking 36 that supplies the infant to take on the vehicle frame 31, and one is positioned at the push rod 37 of taking advantage of place, a portion 36 back upper places.And wheel 35 has a wheel hub 351, and wheel hub 351 has most fins 352 separately, and 352 of adjacent two fins also define a gap 353.

See also Fig. 1, shown in Figure 2, be that particularly the utility model baby stroller 3 also includes at least one quick detach shock-absorbing unit 4, be to do explanation in the present embodiment with two, and be installed in respectively on two rear foot tubes 33, but not as limit, also can only be installed on two front foot pipe 32, or on each forward and backward

pin pipe

31,32 quick detach shock-absorbing unit 4 is installed all.And the utility model not only can be applicable to the perambulator of four-wheel, also can be applied to the perambulator of three-wheel.

See also shown in Figure 2, each quick detach shock-absorbing unit 4 include one be pivoted to a wheel 35 and its upper end and the pedestal 41, of a pin pipe (being meant rear foot tube 33 in this example) socket be arranged on pedestal 41 in so that described pin pipe 33 combines the holding piece 42 of locating with pedestal 41, and one be contained in described pin pipe 33 lower ends and towards the elastic element 43 of pedestal 41 bias voltages.

See also shown in Fig. 2,3, Fig. 3 is the part unitized construction cutaway view of the utility model first preferred embodiment, shows the combination aspect of quick detach shock-absorbing unit and pin pipe, and this moment, the clip pin of holding piece was the wall place, location that clip is positioned described pedestal.Pedestal 41 has one first housing parts 411, and second housing parts 412 that protrudes out from first housing parts, 411 outer peripheral edges faces, first housing parts, 411 tops are formed with one inwardly can stretch the grafting passage of putting 413 for rear foot tube 33 bottoms, and the inside, bottom of first housing parts 411 also defines a shell chamber 414 that is positioned at grafting passage 413, the roof 415 of described shell chamber 414 has a through hole 416, and the diapire of shell chamber 414 is to pedestal 41 outside opening wide.And second housing parts 412 laterally in abutting connection with first housing parts, 411 1 sides and define one can be for the pivoted hole 417 of the wheel shaft that articulates wheel 35, and also be provided with a perforation 418 on second housing parts 412.

Described holding piece 42 has an engagement section 421, makes that described pin pipe 33 can be by the engagement section 421 and removably combine with pedestal 41.In the present embodiment, holding piece 42 is to do explanation with the pin pipe joint seat 42 that can be contained in the grafting passage 413, described engagement section 421 then is a pair of elasticity pawl with barb of these pin pipe joint seat 42 lower ends, so that holding piece 42 passes through hole 416 backs and pedestal 41 lockings of shell chamber 414.In addition, also be provided with two corresponding perforates 423 on the holding piece 42.

See also Fig. 2, shown in Figure 3, quick detach shock-absorbing unit 4 also includes two

locationss

61,62, and a pair of perforation 331 and a pair of slotted hole 332 that are formed on described pin pipe 33 diameter two ends accordingly, described two

locationss

61,62 run through this a pair of perforation 331 and a pair of slotted hole 332 respectively in the top and bottom of elastic element 43.

The utility model baby stroller 3 also includes the brake unit 5 that is assembled on the quick detach shock-absorbing unit 4, and the number of the unit 5 of promptly braking is corresponding with the number of quick detach shock-absorbing unit 4.Brake unit 5 has an extension arm 51, a depression bar 52 by the arc extension up of extension arm 51 bottoms, an and pivot joint ear 53 that is formed at extension arm 51 and depression bar 52 junctions, articulate ear 53 and be provided with conjugate foramen 531, and on 52 liang of outer side surfaces of depression bar and convex with can be in order to the stopper posts 521 of interfering wheel 35 to be advanced.

See also Fig. 2, shown in Figure 3, the quick detach shock-absorbing unit 4 of the utility model baby stroller 3 and brake unit 5 at first, utilize positioning piece 61 1 ends to run through the perforation of two on the rear foot tube 33 331 when assembling, and simultaneously by behind elastic element 43 tops, and then riveting is located on the rear foot tube 33; Then, elastic element 43 bottoms can be inserted in the holding piece 42, rear foot tube 33 bottoms be stretched in the grafting passage 413 that places pedestal 41 again, this moment, elastic element 43 and holding piece 42 relatively were inserted in the rear foot tube 33; And then another locations 62 run through two slotted holes 332 on the rear foot tube 33 and the perforate 423 on the holding piece 42, and then be located on the rear foot tube 33 with identical locate mode riveting, locations 62 can slide in perforate 332 and produce shock-proof effect with the other end butt of elastic element 43; Then, the holding piece 42 of quick detach shock-absorbing unit 4 is placed in the grafting passage 413 of pedestal 41, roof 415 bottom surfaces by means of being placed in shell chamber 414 behind the through hole 416 of two elasticity pawls 421 by pedestal 41 of holding piece 42 make holding piece 42 integrated positionings in pedestal 41.So promptly finish the assembling operation of quick detach shock-absorbing unit 4 and rear foot tube 33.

In addition, brake unit 5 is to borrow pivot joint ear 53 to be arranged on second housing parts 412 of pedestal 41, and make the perforation 418 on conjugate foramen 531 alignings second housing parts 412 that articulates on the ear 53, utilize positioning piece 63 to run through conjugate foramen 531, perforation 418 simultaneously and riveting is located on the pedestal 41, and finish the combination operation of brake unit 5 and quick detach shock-absorbing unit 4.Brake unit 5 also can pivot relative quick detach shock-absorbing unit 4, makes that two stopper posts 521 on the depression bar 52 can be separated the displacement between a position and a latched position of pulling one.At this special version is that described

locations

61,62,63 all is to do explanation with rivet in this example, but not as limit, also can utilize bolt to cooperate with the screw lock of nut and reach identical pivot joint purpose and effect.

See also Fig. 2, shown in Figure 6, Fig. 6 is the another angle part sectional view of the utility model first preferred embodiment, shows to be provided with the space that can supply locations to slide in the described pedestal.Before not braking, not when pressing down, the stopper posts 521 on 52 liang of outer side surfaces of depression bar is the wheel hub 351 adjacent side places that are positioned at wheel 35 to the depression bar 52 of the unit 5 of promptly braking, and is and separates the position of pulling as yet.See also shown in Figure 7, it is the brake view of the utility model first preferred embodiment, when brake, the depression bar 52 of unit 5 is to pressing down as long as will brake, whole brake unit 5 relative pedestals 41 are pivoted downwards, stopper posts 521 synchronous shift stretch in the gap 353 of wheel hub 351, promptly by aforementioned position displacement to a latched position of pulling of separating, advance to interfere wheel 35.

See also Fig. 1, Fig. 3, shown in Figure 4, Fig. 4 is another part cutaway view of the utility model first preferred embodiment, shows that the clip pin of holding piece breaks away from the location wall of described pedestal.When baby stroller 3 is passed through uneven road surface or obstacle 6, wheel 35 is subjected to obstacle 6 pushing tows will drive holding piece 42 to top offset by interlock pedestal 41 synchronously, holding piece 42 is compression elastic element 43 simultaneously, and be arranged in the locations 62 of slotted hole 332 also to top offset this moment, in case wheel 35 breaks the barriers after 6, elastic element 43 stretches immediately and resets, and interlock holding piece 42 and pedestal 41 descend mobile and reset simultaneously.So shaking force obtains buffering and discharges, and the upper and lower fluctuating when slowing down shock-absorbing provides preferable shock-proof effect.

See also Fig. 3, shown in Figure 5, Fig. 5 is another angle part sectional view of the utility model first preferred embodiment, shows quick detach shock-absorbing unit and the structure of brake unit assembly on the pin pipe.Wheel 35 in the utility model also can borrow being provided with of quick detach shock-absorbing unit 4 to cooperate simple operations and break away from rear foot tube 33 fast, its operating mode is the two elasticity pawls 421 that are inserted into the holding piece 42 in the shell chamber 414 are pushed in opposite directions, simultaneously with rear foot tube 33 upwards (for direction as shown) draw, can make elasticity pawl 421 by through hole 416, and then holding piece 42 breaks away from pedestal 41 fast, so wheel 35 promptly separates with rear foot tube 33, reaches the effect of quick detach.Because wheel 35 can further separate with rear foot tube 33, also can make the volume-diminished after baby stroller 3 folds, and then provide the effect of saving collection space.

See also Fig. 8, shown in Figure 9, Fig. 8 is the exploded schematic perspective view of the utility model baby stroller second preferred embodiment.Fig. 9 is the local unitized construction cutaway view of the utility model second preferred embodiment, shows that the protuberance of pushing of holding piece is stretched the lock hole that places pedestal.Be the utility model second preferred embodiment, present embodiment is different with first preferred embodiment to be in described holding piece 44 is one can compress the V-arrangement spring leaf that is contained in the described pin pipe 33, and an arm of described V-arrangement spring leaf 44 is provided with pushes protuberance 441.In addition, rear foot tube 33 is provided with an open-work 333, and then be provided with a lock hole 419 on the pedestal 41 relatively, holding piece 44 is placed in the described pin pipe (still doing explanation with rear foot tube 33 in this example), holding piece 44 2 arms contact at rear foot tube 33 internal faces, push protuberance 441 and then run through lock hole 419 on open-work 333 and the pedestal 41 on the rear foot tube 33 simultaneously.As for other combination of elements because the same, so do not repeat them here with first embodiment.Present embodiment is consulted Figure 10,11 when carrying out the quick detach operation, Figure 10 is an action cutaway view of described second preferred embodiment, the lock hole that protuberance is recessed pedestal of pushing of holding piece is described, and the rear foot tube part is drawn out outside the pedestal.Figure 11 is another action cutaway view of described second preferred embodiment, shows that the protuberance of pushing of holding piece is drawn out outside the pedestal.As long as will push protuberance 441 inwardly pushes, make and push the lock hole 419 that protuberance 441 is recessed pedestal 41, rear foot tube 33 can be pulled out pedestal 41, when pushing protuberance 441 and not breaking away from pedestal 41 fully, can be subjected to pedestal 41 inwalls pushing tow and in contract and accumulate an elastic-restoring force, break away from pedestals 41 in case push protuberance 441, holding piece 44 discharges elastic-restoring force immediately, pushes protuberance 441 ejection open-works 333 and resets outward.Therefore the effect that wheel 35 and rear foot tube 33 are separated fast can be provided equally.

Conclude above-mentioned, the utility model baby stroller 3 can provide shock-proof effect good really, and by easy operation, can remove the interference effect of holding piece 42 for pedestal 41, make rear foot tube 33 (or front foot pipe 32) break away from pedestal 41 and wheel 35 together with elastic element 43 and holding piece 42, reach the effect of quick detach, and the overall volume after allowing car body fold dwindles effectively, and then can save collection space.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art are not in breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.

Claims

1, a kind of baby stroller includes a vehicle frame with a plurality of pin pipes and a plurality of wheels; It is characterized in that this baby stroller comprises:

At least one quick detach shock-absorbing unit, described quick detach shock-absorbing unit comprises that one is pivoted to a wheel and its upper end and pedestal, that a pin pipe box connects and is contained in described pin pipe lower end in order to combining the holding piece of described pin pipe and described pedestal, and one is contained in described pin pipe lower end and can provides described pedestal one to cushion the elastic element of elastic force;

Described holding piece has an engagement section, and described pin pipe removably combines with described pedestal by described engagement section.

2, baby stroller as claimed in claim 1, it is characterized in that wherein said quick detach shock-absorbing unit also comprises two locationss, described pin pipe has a pair of perforation and a pair of slotted hole that is formed on the diameter two ends accordingly, described two locationss run through this a pair of perforation and a pair of slotted hole respectively, described elastic element is positioned between described two locationss, and the two ends of described elastic element are connected to described two locationss respectively.

3, baby stroller as claimed in claim 1, it is characterized in that wherein said pedestal comprises one first housing parts and one second housing parts, described first housing parts defines one can be for the grafting passage of ccontaining described pin pipe, described second housing parts laterally in abutting connection with described first housing parts, one side and define one can be for the pivoted hole of a wheel shaft that articulates described wheel.

4, baby stroller as claimed in claim 3, it is characterized in that its also include one be hubbed at described pedestal second housing parts and can be described relatively the brake unit that pivots of pedestal.

5, baby stroller as claimed in claim 4, the bottom that it is characterized in that wherein said first housing parts also define a shell chamber that is positioned at this grafting channel interior, and the roof of described shell chamber has a through hole and diapire and opens wide to described pedestal is outside.

6, baby stroller as claimed in claim 5, it is characterized in that wherein said holding piece is the pin pipe joint seat that is contained in the described grafting passage for, described engagement section is a pair of elasticity pawl with barb for this pin pipe joint seat lower end, and described elasticity pawl is in order to interfere locking with described pedestal behind the through hole that passes this shell chamber.

7, baby stroller as claimed in claim 1 is characterized in that wherein said holding piece is to be positioned between described elastic element and described pedestal.

8, baby stroller as claimed in claim 1 is characterized in that wherein said elastic element is to be positioned between described holding piece and described pedestal.

9, baby stroller as claimed in claim 3 is characterized in that forming on wherein said first housing parts lock hole.

10, baby stroller as claimed in claim 9, it is characterized in that wherein said holding piece is one to be contained in the V-arrangement spring leaf in the described pin pipe, one arm of described V-arrangement spring leaf is provided with pushes protuberance, and the described protuberance of pushing passes described lock hole and is stretched on outside the described pin pipe.