CN102343927A

CN102343927A - Foldable baby carriage frame

Info

Publication number: CN102343927A
Application number: CN2010102496662A
Authority: CN
Inventors: 李道昌
Original assignee: Wonderland Nurserygoods Co Ltd Hong Kong
Current assignee: Wonderland Nurserygoods Co Ltd Hong Kong
Priority date: 2010-08-02
Filing date: 2010-08-02
Publication date: 2012-02-08

Abstract

The invention discloses a foldable baby carriage frame which comprises two side frames, and is characterized in that each side frame comprises a rear foot frame, a front foot frame and an underframe, the front foot frame comprises an upper front foot frame and a lower front foot frame, the rear foot frame comprises an upper rear foot frame and a lower rear foot frame pivoted with the upper rear foot frame, the upper end of the upper rear foot frame is pivoted with the upper front foot frame, the lower end of the upper rear foot frame is pivoted with one end of the lower rear foot frame, the other end of the lower rear foot frame is pivoted with the rear part of the underframe, and the front part of the underframe is pivoted with the lower front foot frame. The foldable baby carriage frame is simple to operate, stable and firm, and the whole carriage frame can be fully folded when being folded, so that the whole size of the foldable baby carriage frame is short and small after being folded, and the foldable baby carriage frame is convenient for a user to carry and store.

Description

Can fold baby's vehicle frame

Technical field

The present invention relates to articles for babies, relate more specifically to a kind of baby's of folding vehicle frame.

Background technology

Can be with the baby to arrive outdoor stroll or shopping whenever and wherever possible in order to satisfy numerous father and mother; Most perambulators on the market all improve to some extent in the design of its chassis structure now; Promptly be designed to Foldable stroller; Make and the form that perambulator in use can the flare up perambulator then can fold into smaller size smaller when not using conveniently to collect or to carry.

But existing Pushchair often can not be fully folding, perhaps because the position that is used to fold is designed unreasonablely, and cause perambulator take advantage of when carrying the baby yielding or insecure.Existing perambulator comprises the rear leg pipe that is positioned at rear side and the preceding foot rest of front side substantially; The upper end of rear leg pipe connects the rear leg handle; Its lower end connects back wheels of vehicle; And the upper end of preceding foot rest also connects the rear leg handle; Its lower end connects the car front-wheel; Then connect rear leg Guan Yuqian foot rest with a underframe, thereby form leg-of-mutton body frame structure for automotive.Because the pivot joint mode is adopted in the junction of rear leg Guan Yuqian foot rest, make the unitized frame of perambulator when folding, preceding foot rest is drawn close with foot rest pipe backward around its pivoting point rotation, with folding of realization perambulator; Perhaps, the pivot joint mode is adopted in the junction of rear leg pipe and underframe, and preceding foot rest adopts the pivot joint mode with being connected of underframe, makes perambulator when folding, and rear leg pipe and preceding foot rest rotate to draw close to underframe around its pivoting point.Though above-mentioned stroller fold design for the normal use did not influence of perambulator because pivoting point is less, it is single to make that perambulator folds mode, causes the perambulator volume after folding still bigger, inconvenient user carries or collects.

Therefore, demand urgently a kind of simple to operately, firm firm and fold shorter and smaller the folded baby vehicle frame of back overall dimensions, overcome above-mentioned defective.

Summary of the invention

The object of the present invention is to provide a kind of baby's of folding vehicle frame; It is not only simple to operate, firmly firm that this can fold baby's vehicle frame; And unitized frame can be fully superimposed when folding for it, makes baby's vehicle frame in that to fold the back overall dimensions comparatively short and small, thereby make things convenient for the user to carry and collect.

To achieve these goals; The invention provides a kind of baby's of folding vehicle frame and comprise two bogie side frames; Each bogie side frame comprises rear leg, following rear leg, preceding foot rest and underframe; Foot rest comprises go forward foot rest and down preceding foot rest before said; Said rear leg comprises that rear leg reaches the said upper end of going up rear leg of the following rear leg that is articulated with last rear leg and is articulated in the said foot rest of going forward; Lower ending pivot is connected to an end of said following rear leg; The said other end of rear leg down is articulated in the rear portion of said underframe, and the front portion of said underframe is articulated in said down preceding foot rest.

Compared with prior art; The present invention can fold baby's vehicle frame and be articulated in rear leg under the two having increased between last rear leg and the underframe; And preceding foot rest by go forward foot rest and with the foot rest of going forward be articulated following before foot rest form; When baby's vehicle frame folds; Following rear leg and down before foot rest draw close to the back tilt of baby's vehicle frame and to underframe and fold; And the last rear leg and the foot rest of going forward are drawn close to the preceding tilt of baby's vehicle frame and to underframe and are folded, thereby fold baby's vehicle frame.This can fold when baby's vehicle frame realized that under collapse state each parts are fully superimposed, and is firm firm, and its to fold the back volume less, make things convenient for carrying and collecting of user.

Preferably; Said said articulated section of going forward foot rest and said down preceding foot rest forms first and folds portion; Said first portion of folding comprises two first revolving parts that are installed on said go forward foot rest and the said down preceding foot rest and the rotation that cooperatively interacts respectively; The articulated section of said upward rear leg and said rear leg down forms second and folds portion, and said second portion of folding comprises that two are installed on said second revolving part of going up rear leg and the said rear leg down and the rotation that cooperatively interacts respectively.

Preferably, said first portion of folding in the said baby's of folding vehicle frame is positioned at said second oblique upper that folds portion.This is arranged so that the baby's vehicle frame after folding is superimposed more abundant, realizes folding the miniaturization of back unitized frame.

Preferably; The said baby's of folding vehicle frame comprises that also one is arranged at the retracting mechanism between two bogie side frames; Said retracting mechanism comprises two connecting rods and two dwangs; The middle part of two said connecting rods is articulated; Two said connecting rod two ends separately are connected on the side frames; A two said dwangs end separately is articulated, and the other end is articulated in respectively on the two said connecting rods, and two said dwangs are applicable to the said baby's of folding vehicle frame is locked in deployed condition.Two connecting rods middle parts be articulated form X-shaped be connected in rear leg on two between, under the drive of two dwangs, connecting rod drives two then and goes up drawing close or separating of rear legs, realizes folding and launching of vehicle frame.When the engagement piece that the place of being articulated of two traces is provided with makes the use of baby's vehicle frame, keep unitized frame to be in deployed condition.

Preferably, each connecting rod one end is slidably connected to the last rear leg of a said bogie side frame in the said baby's of folding vehicle frame, and the other end is articulated on the last rear leg of another said bogie side frame.

Preferably; The said baby's of folding vehicle frame also comprises linked component, and said linked component comprises two traces, and the middle part of two said traces is articulated; The corresponding end of two said traces is articulated in two second respectively and folds in the portion, and the other end is articulated in said preceding foot rest respectively.This linked component improves the integral rigidity of baby's vehicle frame, and, when the dwang drivening rod makes that vehicle frame folds, the linked component pushing and pressing down rear leg around its pivoting point with underframe rotate and behind vehicle frame tilt, thereby the drive vehicle frame is drawn close towards underframe and is folded.

Preferably, the said baby's of folding vehicle frame also comprises stretcher and driver, and said stretcher is a soft material, and the two ends of said stretcher are connected to down preceding foot rest, and said driver is connected in the upper end of the said foot rest of going forward.Because the material of stretcher is a soft material, makes and can realize fully folding of unitized frame when drawing close about baby's vehicle frame.

Preferably, the said baby's of folding vehicle frame also comprises the seat-assembly that is arranged between the two said bogie side frames, and said seat-assembly comprises two pipes, and the two ends of each said seat pipe are articulated in said second respectively and fold portion and said preceding foot rest.

Preferably; Said retracting mechanism in the said baby's of folding vehicle frame also comprises handle, preceding wheels and back wheels; Said handle is articulated in the articulated section of two said dwangs, and said front-wheel is assembled in said down preceding foot rest, and said back wheels are assembled in the rear end of said underframe.When the user made progress carrying handle, the combination form of two dwangs became the inversion V-type from yi word pattern, drew close to the centre and folded thereby drive vehicle frame.

Preferably, the articulated section at the said said down rear leg that folds baby's vehicle frame and the rear portion of said underframe said wheels afterwards and said before between the wheels.

Alternatively, the said said rear leg down that folds in baby's vehicle frame is identical with the length of said rear leg down with the distance of articulated section wheels to said back at the rear portion of said underframe.The shorter and smaller compactness of baby's vehicle frame after this is arranged so that and folds realizes folding the miniaturization of back baby's vehicle frame.

Preferably, can fold baby's vehicle frame and comprise that also seat-assembly is arranged between the two said bogie side frames, said seat-assembly comprises two pipes, and the two ends of each said seat pipe are articulated in said rear leg down and said preceding foot rest respectively.

Preferably; The said baby's of folding vehicle frame also comprises two traces; The middle part of two said traces is articulated, and the corresponding end of two said traces is articulated in said rear leg and the said rear leg down place that is articulated of going up respectively, the other end be articulated in respectively two said before foot rests

Through following description and combine accompanying drawing, it is more clear that the present invention will become, and these accompanying drawings are used to explain embodiments of the invention.

Description of drawings

In order to be illustrated more clearly in the technical scheme of the embodiment of the invention; To do to introduce simply to the accompanying drawing of required use among the embodiment below; Obviously; Accompanying drawing in describing below only is some embodiments of the present invention; For those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the block diagram that the present invention can fold baby's vehicle frame one embodiment.

Fig. 2 is the block diagram of another angle of the baby's of folding vehicle frame shown in Figure 1.

Fig. 3 is the enlarged drawing of A in the baby's of folding vehicle frame shown in Figure 2.

Fig. 4 is that the baby's of folding vehicle frame shown in Figure 1 folds the constitution diagram in the process.

Fig. 5 is the constitution diagram that the baby's of folding vehicle frame shown in Figure 4 folds another angle in the process

Fig. 6 is the lateral plan of the baby's of folding vehicle frame shown in Figure 1.

Fig. 7 to Fig. 8 is that the perambulator that folds shown in Figure 6 folds the different conditions figure in the process.

The specific embodiment

To combine the accompanying drawing in the embodiment of the invention below, the technical scheme among the embodiment is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.With reference now to accompanying drawing, describe embodiments of the invention, the similar elements label is represented similar elements in the accompanying drawing.The invention provides a kind of baby's of folding vehicle frame, it is not only firmly firm that this can fold baby's vehicle frame, and its unitized frame can be fully superimposed when folding, make baby's vehicle frame in that to fold the back overall dimensions comparatively short and small, thereby make things convenient for the user to carry and collect.

An embodiment that can fold baby's vehicle frame for the present invention shown in Figure 1.With reference to Fig. 1-2; Can fold baby's vehicle frame 10 and comprise two bogie side frames and the retracting mechanism 15 between two bogie side frames, linked component 16, stretcher 21, reach seat-assembly 22, each bogie side frame comprises rear leg, preceding foot rest 13, underframe 14, front component 17, wheel assembly 18 and handgrip 23.Wherein, preceding foot rest 13 comprises the following preceding foot rest 132 of going forward foot rest 131 and being articulated with the said foot rest 131 of going forward.The bogie side frame that present embodiment can fold perambulator 10 has symmetrical structure, its Left elevation is same with right elevation.

With reference to figure 1-3; Can fold in the perambulator 10, rear leg comprises rear leg 11 and following rear leg 12, and the upper end of last rear leg 11 is articulated with the upper end of the foot rest 131 of going forward; The lower end of last rear leg 11 articulates with the upper end of following rear leg 12, and folds portion 111 in this articulated section formation second.The lower ending pivot of rear leg 12 is connected on the rear portion of underframe 14 under said, and the lower ending pivot of said down preceding foot rest 132 is connected on the front portion of underframe 14, and the upper end of said down preceding foot rest 132 is articulated in the lower end of the foot rest 131 of going forward, and folds portion 133 in this articulated section formation first.Said first folds portion 133 comprises two first revolving parts 134 that are installed on go forward foot rest 131 lower ends and down preceding foot rest 132 upper ends and the rotation that cooperatively interacts respectively; Said first revolving part 134 comprises first restrictions (figure does not show); Because the setting of first restrictions; Make and go forward in specific scope, to relatively rotate between foot rest 131 and the down preceding foot rest 132; In the present embodiment, go forward foot rest 131 and down before the rotation of foot rest 132 be limited to both and be similar yi word pattern.Similarly; Said second folds portion 111 comprises that two are installed on said second revolving part 1111 of going up rear leg 11 lower ends and said rear leg 12 upper ends down and the rotation that cooperatively interacts respectively; Said second revolving part 1111 comprises second restrictions (figure does not show); Because the setting of second restrictions, feasible upward rear leg 11 reaches down and can only in specific scope, relatively rotate between the rear leg 12.Preferably, with reference to figure 6, said first folds portion 133 is positioned at said second oblique upper that folds portion 111, and this is arranged so that as the present invention can fold baby's vehicle frame 10 when folding, and whole baby's vehicle frame 10 folds compactness, and its length is shorter relatively.Need to prove; The card stop bit of going forward to rotate each other between foot rest 131 and the down preceding foot rest 132 is put; And go up between rear leg 11 and the following rear leg 12 each other the card stop bit of rotation and put and be not limited to position shown in the drawings in the present embodiment, as long as can make baby's vehicle frame technical scheme of containing of the solid and reliable the present invention of being in use.

With reference to Fig. 1-2 and Fig. 4-5, can fold baby's vehicle frame 10 and comprise retracting mechanism 15, said retracting mechanism 15 comprises two connecting rods 151, two dwangs 152 and handles 153.The middle part of two said connecting rods 151 is articulated, and two said connecting rod 151 two ends separately are connected to the said of two bogie side frames and go up on the rear leg 11, and two connecting rods 151 are the X type and cooperatively interact and rotate and be connected between the side frames.Each connecting rod 151 1 end is slidably connected on the last rear leg 11 of a bogie side frame, and the last rear leg 11 of the other end and another bogie side frame folds portion 11 by second and is articulated, and the connection location of the other end and another bogie side frame is positioned at second and folds portion 111 tops.Two said dwangs 152 end separately is articulated, and the other end is articulated in respectively on the identical position of two said connecting rods 151.Said handle 153 is articulated in the articulated section of two said dwangs 152.Be used to take advantage of when carrying the baby when folding baby's vehicle frame 10; Two dwang 152 general alignment become yi word pattern; And two dwang 152 mutual pivoting points are positioned at the below of the two pivoting point lines that two dwangs 152 are connected with connecting rod 151; Make dwang 152 roughly be held in yi word pattern; So that baby's vehicle frame 10 keeps lock-out state; And two of two bogie side frames go up rear legs 11 and can keep each other away from state, make baby's vehicle frame 10 remain in deployed condition by X type connecting rod 151.When folding to fold baby's vehicle frame 10 time; Carrying handle 153; Two dwangs 152 fade to from the yi word pattern attitude under the drive of handle 153 and are the inversion V-type; Thereby driving two connecting rods 151 end separately upwards slides along last rear leg 11; Then drive two following rear legs 12 of two last rear legs 11 drives and draw close, accomplish the left and right sides folding of baby's vehicle frame 10 to the centre of baby's vehicle frame 10.

With reference to figure 1-8; Can fold baby's vehicle frame 10 comprises that seat-assembly 22 is arranged between two bogie side frames and takes for the baby; In this embodiment; Said seat-assembly 22 comprises and leans against pipe 221 and seat pipe 222; One end of said seat pipe 222 is articulated in second through attaching parts 223 and folds portion 111; So that seat pipe 222 is articulated in down on the rear leg 12, the other end of seat pipe 222 is articulated in down on the preceding foot rest 132.The said pipe 221 that leans against is articulated on the seat pipe 222.When needs use this baby's vehicle frame, leaning against sheathed cloth and the seat cushion of leaning against on pipe 221 and the seat pipe 222 respectively, can take advantage of and carry the baby.In addition; Can fold baby's vehicle frame 10 and also comprise linked component 16; Said linked component 16 comprises two traces 161; The middle part of two said traces 161 is articulated; Two said trace 161 corresponding ends fold portion 111 by second respectively and articulate with following rear leg 12, and two corresponding separately other ends of said trace 161 are articulated in the lower end of foot rest 132 before twice respectively; Two traces 161 are the bottom that the X type is articulated in baby's vehicle frame 10.At length, an end of said trace 161 be articulated in said attaching parts 223 with second fold portion 111 and articulate, and make baby's vehicle frame 10 keep deployed conditions by trace 161 and connecting rod 151.When folding baby's vehicle frame 10,153, two dwangs 152 of carrying handle fade to from the yi word pattern attitude under the drive of handle 153 and are the inversion V-type, drive two then and go up rear legs 11 and two following rear legs 12 are drawn close to the centre of baby's vehicle frame 10; At this moment; Owing to receive down the power that

rear leg

12 and 11 is drawn close to central frame beam; Two traces 161 are also drawn close around its pivotal point each other; Thereby make and trace 161 push rear leg 12 backward to make down rear leg 12 go up rear leg 11 pivots relatively close, thereby drive folding of whole baby's vehicle frame 10 near ends of rear legs 12 down.

Continuation can fold baby's vehicle frame 10 and also comprise stretcher 21 and the handgrip 23 that is arranged between two bogie side frames with reference to figure 1 and Fig. 4.Said stretcher 21 is a soft material, can be materials such as plastics, rubber or cloth and processes; The two ends of said stretcher 21 are connected to the bottom of following two down preceding foot rests 132.When baby's vehicle frame 10 folds, along with two down before the drawing close each other of foot rests 132 because stretcher 21 processes for soft material, make also folding thereupon of stretcher 21.Said handgrip 23 is connected in the upper end of the said foot rest 131 of going forward, and said handgrip 23 is processed for rubber or plastics, is used for the perambulator user and holds and close to promote perambulator.

Continue with reference to figure 6-8, can fold baby's vehicle frame 10 and also comprise preceding wheels 17 and back wheels 18.Preferably, the lower end of foot rest 132 before said preceding wheels 17 are arranged at down.Said back wheels 18 are articulated in the rear end of said underframe 14.In the present embodiment, the articulated section 141 at said down rear leg 12 and the rear portion of said underframe 14 said wheels 18 afterwards and said before between the wheels 17.And said articulated section 141 is to the distance of back wheels 18; Fold articulated section 141, back to second distance that folds portion 111 about equally with baby's vehicle frame 10, promptly the length with following rear leg 12 is identical, at this moment; Can fold baby's vehicle frame 10 fully to fold to greatest extent, person easy to use carries and collects.

With reference to Fig. 1-8, below describe the process that folds that the present invention can fold baby's vehicle frame 10 in detail.

When needs fold the present invention can fold baby's vehicle frame 10 time; Need only carrying handle 153; Two dwangs 152 fade to from the yi word pattern attitude under the drive of handle 153 and are the inversion V-type; Dwang 152 drives two connecting rods 151 around its pivoting point rotation; And an end of two connecting rods 151 is fixed in rear leg 11; The other end upwards slides along last rear leg 11, goes up the following rear leg of rear leg 11, two 12, two foundation framves 14, preceding foot rest 13 and draws close to the centre of baby's vehicle frame 10 thereby drive two.At this moment; Owing to receive down the power that rear leg 12 is drawn close to central frame beam; Being articulated in second two traces 161 that fold portion 111 also draws close to the centre of baby's vehicle frame 10; Thereby make two foundation framves 14 when central frame beam is drawn close; The end that trace 161 approaches down rear leg 12 pushes rear leg 12 backward and makes down rear leg go up rear leg 11 relatively to pivot; And make simultaneously rear leg 11 and down rear leg 12 tilt to draw close to underframe 14, be articulated in the second seat pipe 222 that folds portion 111 drive down before foot rest 132 also tilt to draw close to underframe 14.Then; Push to rear leg 11 forward; Make going up rear leg 11 folds portion 111 around second and rotates and tilt to underframe 14; And drive and last rear leg 11 articulates go forward foot rest 131 and down foot rest 132 fold portion 133 around first and rotate each other and tilt to draw close to underframe 14, thereby drive folding of the whole baby's of folding vehicle frame 10.

The present invention can fold baby's vehicle frame 10 when folding; Also can spur handle 153 earlier; Make dwang 152 relatively rotate; Baby's vehicle frame 10 presents released state at this moment; Then; Pushing hands is 23 forward; Make that going up rear leg 11 folds portion 111 with respect to rear leg 12 rotations down by second; The foot rest 131 of going forward folds portion 133 foot rest 132 before down by first and rotates; And two bogie side frames are close each other, make handgrip 23, go up rear leg 11, down rear leg 12, go forward foot rest 131 and down before foot rest 132 towards underframe 14 near and unitized frame is folded.Need to prove; The mode of folding that the present invention can fold baby's vehicle frame 10 is not limited to the mode that folds of the foregoing description; And be not limited to the above-mentioned sequencing that folds mode and fold the said baby's of folding vehicle frame, visual user's concrete custom folds.

When needs use the present invention can fold baby's vehicle frame 10; The user need only lift handgrip 23; Simultaneously handle 153 is pushed or is directly pushed dwang 152 mutual articulated sections downwards; Two dwangs 152 faded to and roughly were the yi word pattern attitude this moment; Thereby promote two and go up rear leg 11 and two following rear legs 12 separation; At present rear leg 12 drives two traces 161 around its pivoting point expansion together, thereby rear leg 11, following rear leg 12 are gone up in drive, go

forward foot rest

131 and 132 expansion of down preceding foot rest.At this moment, shown in Fig. 6-8, last rear leg 11 folds portion's 111 rotations around second, and rear leg 11 is in relatively-stationary position with following rear leg 12 until replying upward; Likewise; Go forward foot rest 131 around first fold portion 133 rotation until go forward foot rest 131 with down before the relatively-stationary position of foot rest 132 answers; So far, the present invention can fold the practical state that baby's vehicle frame 10 is expanded to user mode shown in Figure 1 and locks baby's vehicle frame.

The present invention can fold baby's vehicle frame rear leg in the relative pivot joint of rear leg increase and reach rear leg down; And preceding foot rest by go forward foot rest and with the foot rest of going forward be articulated following before foot rest form; When baby's vehicle frame folds; Following rear leg and down before foot rest draw close to the back tilt of baby's vehicle frame and to underframe and fold; And the last rear leg and the foot rest of going forward are drawn close to the preceding tilt of baby's vehicle frame and to underframe and are folded, thereby fold baby's vehicle frame.It is easy to operate that this can fold baby's vehicle frame, realized that under collapse state each parts are fully superimposed in, avoided the not firm hidden danger of the last rear leg or the preceding foot lever of flexible rod-type, and it folds that afterwards volume is less, make things convenient for carrying and collecting of user.

Invention has been described more than to combine most preferred embodiment, but the present invention is not limited to the embodiment of above announcement, and should contain various modification, equivalent combinations of carrying out according to essence of the present invention.

Claims

1. A collapsible stroller frame includes two side frames, wherein each side frame includes a rear foot frame, a front foot frame and a bottom frame, and the front foot frame includes an upper front foot frame and is pivoted with the upper front foot frame The connected lower front foot frame, the rear foot frame includes an upper rear foot frame and a lower rear foot frame, the upper end of the upper rear foot frame is pivotally connected to the upper front foot frame, the lower end is pivotally connected to one end of the lower rear foot frame, and the lower The other end of the rear foot frame is pivotally connected to the rear portion of the underframe, and the front portion of the bottom frame is pivotally connected to the lower front foot frame.

2. The foldable stroller frame according to claim 1, wherein the pivot joint between the upper front leg frame and the lower front leg frame forms a first retractable portion, and the first retractable portion The part includes two first rotating parts respectively installed on the upper front leg frame and the lower front leg frame and cooperating with each other to rotate, the pivot joint between the upper rear leg frame and the lower rear leg frame forms a second collection part, The second receiving part includes two second rotating parts respectively installed on the upper rear foot frame and the lower rear foot frame and cooperating with each other to rotate.

3 . The foldable stroller frame according to claim 2 , wherein the first receiving portion is located obliquely above the second receiving portion. 4 .

4. The foldable stroller frame according to claim 1, further comprising a retractable mechanism arranged between the two side frames, said retractable mechanism comprising two connecting rods and two rotating rods, two The middle parts of the connecting rods are pivotally connected, the respective two ends of the two connecting rods are respectively connected to the two side frames, the respective one ends of the two rotating rods are pivotally connected, and the other ends are respectively pivotally connected to the two connecting rods On the other hand, the two rotating rods are suitable for locking the foldable stroller frame in the unfolded state.

5. The foldable stroller frame of claim 4, wherein one end of each connecting rod is slidably connected to the upper rear foot frame of one of the side frames, and the other end is pivotally connected to the other side frame on the upper rear tripod.

6. The foldable baby carriage frame according to claim 2, further comprising a linkage assembly, the linkage assembly comprising two linkage rods, the middle parts of the two linkage rods are pivotally connected, and the two linkage rods are pivotally connected. The corresponding one ends of the linkage rod are respectively pivotally connected to the two second retracting parts, and the other ends are respectively pivotally connected to the front legs.

7. The foldable stroller frame of claim 1, further comprising a footrest and a handle, the footrest is made of soft material, and the two ends of the footrest are respectively connected to The lower front stand, the handle is connected to the upper end of the upper front stand.

8. The foldable stroller frame according to claim 2 or 5, further comprising a seat assembly disposed between the two side frames, the seat assembly includes two seat tubes, each Both ends of the seat tube are pivotally connected to the second receiving portion and the front leg respectively.

9 . The foldable stroller frame of claim 4 , wherein the folding mechanism further comprises a handle, and the handle is connected to the pivot joint of the two rotating rods. 10 .

10. The foldable stroller frame of claim 1, further comprising a front wheel set and a rear wheel set, the front wheels are assembled on the lower front foot frame, and the rear wheel sets are assembled on the the rear end of the chassis.

11. The foldable stroller frame as claimed in claim 10, wherein the pivot joint between the lower rear foot frame and the rear part of the bottom frame is located between the rear wheel set and the front wheel set between.

12. The foldable stroller frame according to claim 10, characterized in that the distance from the pivot joint between the lower rear foot frame and the rear part of the chassis to the rear wheel set is equal to that of the lower rear foot The racks are the same length.

13. The foldable stroller frame of claim 1, further comprising a seat assembly disposed between the two side frames, the seat assembly including two seat tubes, each of the seat tubes Two ends of the tube are respectively pivotally connected to the lower rear foot frame and the front foot frame.

14. The foldable stroller frame according to claim 1 or 5, further comprising two linkage rods, the middle parts of the two linkage rods are pivotally connected, and the corresponding parts of the two linkage rods One end is respectively pivotally connected to the pivot joint of the upper rear foot frame and the lower rear foot frame, and the other end is respectively pivotally connected to the two front foot frames. the