CN108909813A - Can fast folding perambulator - Google Patents

Abstract

This application involves can fast folding perambulator, including armchair structure interconnected and body frame structure for automotive, body frame structure for automotive include the front frame, Rear frame and arm-rest frame being hinged, and body frame structure for automotive further includes：Link folding joint, is set to the common hinged place of front frame, Rear frame and arm-rest frame；Bindiny mechanism is locked, is located between front frame and Rear frame；First folds control mechanism, is located in Rear frame；Armchair structure includes upper chair frame, lower chair frame, preceding chair frame, chair frame folding joint and the second folding control mechanism, upper chair frame, lower chair frame and preceding chair frame are hinged and when armchair structure is unfolded to use by upper chair frame, lower chair frame and the mutual locking positioning of preceding chair frame by chair frame folding joint, and the second folding control mechanism is connect to control chair frame folding joint and unlock and fold with chair frame folding joint.The application is by structure optimization, and folding is more abundant, and folding convenient is quick, folds deutomerite save space, easily facilitates storage and carrying.

Description

Can fast folding perambulator

【Technical field】

This application involves perambulator fields, more particularly to can fast folding perambulator.

【Background technique】

Foldable baby carriage is popularized in each family, and existing folding baby carrier generally comprises body frame structure for automotive and chair frame Structure can only have body frame structure for automotive that can fold, in order to enable perambulator is in, storage, trip carrying etc. are more convenient to use, it is empty to save Between, need more optimal foldable structure.

【Summary of the invention】

In order to solve the above technical problems, the application be designed to provide can fast folding perambulator, by structure Optimization, folding is more abundant, and folding convenient is quick, folds deutomerite save space, easily facilitates storage and carrying.

The application is achieved through the following technical solutions：

Can fast folding perambulator, including armchair structure interconnected and body frame structure for automotive, the body frame structure for automotive include phase Mutually hinged front frame, Rear frame and arm-rest frame, the body frame structure for automotive further include：

Link folding joint, is set to the common hinged place of the front frame, the Rear frame and the arm-rest frame, is used for It drives the front frame and the arm-rest frame while relatively rotating；

Bindiny mechanism is locked, is located between the front frame and the Rear frame, for locking the body frame structure for automotive In expansion use state；

First fold control mechanism, be located in the Rear frame, for lock or unlock the locking bindiny mechanism from And it is unfolded or folds the body frame structure for automotive；

The armchair structure include upper chair frame, lower chair frame, preceding chair frame, chair frame folding joint and second fold control mechanism, The upper chair frame, the lower chair frame and the preceding chair frame are hinged and in the armchair structure by the chair frame folding joint The upper chair frame, the lower chair frame and the mutual locking positioning of preceding chair frame, described second are folded into control machine when expansion uses Structure is connect to control the chair frame folding joint and unlock and fold with the chair frame folding joint.

As described above can fast folding perambulator, the locking bindiny mechanism include locking connector, with the rear car Closing piece frame slide bar disposed in parallel and be slidably attached on the slide bar, locking connector one end hinge are located at institute It states in front frame, other end hinge is located on the closing piece, offers lockhole on the closing piece.

Compared with prior art, the application has the following advantages：

The application is by structure optimization, and folding is more abundant, and folding convenient is quick, folds deutomerite save space, easily facilitates Storage and carrying.

【Detailed description of the invention】

In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing.

Fig. 1 is that the perspective exploded view of use state is unfolded in the perambulator of the embodiment of the present application；

Fig. 2 and Fig. 3 is the stereoscopic schematic diagram of two kinds of different folded states of the embodiment of the present application；

Fig. 4 is the enlarged drawing in the portion A in Fig. 1；

Fig. 5 is the enlarged drawing in the portion B in Fig. 2；

Fig. 6 is the partial sectional view in the direction K in Fig. 4；

Fig. 7 is that the first control for folding that control mechanism pushes and pulls connector to described second described in the embodiment of the present application is illustrated Figure；

Fig. 8 is the connection schematic diagram of positive lock structure and the positive lock relief structure described in the embodiment of the present application；

Fig. 9 to Figure 11 is the first folding control mechanism described in the embodiment of the present application in different decomposition degree and in difference The perspective exploded view of angle；

The second rotation top convex body and institute under use state is unfolded for the chair frame structure of the embodiment of the present application in Figure 12 State the location status schematic diagram of the second latch；

Figure 13 and Figure 14 is that the stereo decomposing of two different angles of the chair frame folding joint of the embodiment of the present application shows It is intended to；

Figure 15 is enlarged drawing of the Figure 13 in the portion E；

Figure 16 is enlarged drawing of the Figure 13 in the portion F；

Figure 17 is the perspective exploded view of the linkage folding joint of the embodiment of the present application；

Figure 18 is the unfolded state schematic diagram of the linkage folding joint of the embodiment of the present application；

Figure 19 is the folded state schematic diagram of the linkage folding joint of the embodiment of the present application；

Figure 20 and Figure 21 is that the stereo decomposing of two different angles of the second folding control mechanism of the embodiment of the present application shows It is intended to；

Figure 22 to Figure 24 is that the switching part in the second folding control mechanism of the embodiment of the present application is folded in chair frame structure Status diagram in journey；

Figure 25 is the connection schematic diagram of main brake and the auxiliary brake described in the embodiment of the present application；

Figure 26 and Figure 27 is the perspective exploded view of two different angles of the main brake of the embodiment of the present application, wherein scheming Rear frame and the first rear-wheel are also shown in 26, and Figure 27 also shows Rear frame；

Figure 28 is the perspective exploded view of auxiliary brake described in the embodiment of the present application；

Figure 29 is the cross-sectional view in the direction J in Fig. 1；

Figure 30 is the portion the H enlarged drawing of Figure 29；

Figure 31 is the portion the G enlarged drawing of Figure 27；

Figure 32 is the structural schematic diagram of step block described in the embodiment of the present application；

Figure 33 is the perspective exploded view of the arm-rest frame of the application；

Figure 34 is the enlarged drawing in the portion C in Figure 33；

Figure 35 is the enlarged drawing in the portion D in Figure 33.

【Specific embodiment】

The technical issues of in order to keep the application solved, technical solution and beneficial effect are more clearly understood, below in conjunction with The application is further elaborated in accompanying drawings and embodiments.It should be appreciated that specific embodiment described herein is only used To explain the application, it is not used to limit the application.

As shown in Fig. 1 to Figure 35, the embodiment of the present application propose can fast folding perambulator comprising seat interconnected Structure 1 and body frame structure for automotive 2, the body frame structure for automotive 2 includes front frame 21, Rear frame 22 and the arm-rest frame 23 being hinged, described Linkage folding joint 3 is additionally provided on body frame structure for automotive 2, locking bindiny mechanism 4 and first folds control mechanism 5.

Referring to Fig. 8 and Figure 17 to Figure 19, the linkage folding joint 3 is set to the front frame 21, the Rear frame 22 With the common hinged place of the arm-rest frame 23, for driving the front frame 21 and the arm-rest frame 23 while relatively rotating；Institute State linkage folding joint 3 include the front truck frame connector 31 being connect with the front frame 21, connect with the Rear frame 22 after Frame connecting piece 32 and the handrail frame connector 33 connecting with the arm-rest frame 23, the rear car frame connector 32 are equipped with hole The length direction strip guide hole 321 parallel with the Rear frame 22, the front truck frame connector 31,32 and of rear car frame connector The end of the handrail frame connector 33 is mutually hinged to form coaxial articulated section 1a；The linkage folding joint 3 further includes first Interlocking bar 34 and the second interlocking bar 35, described first interlocking bar, 34 one end and described second interlocking bar, 35 one end are hinged to be formed directly The hole length direction that dynamic articulated section 2a, the direct acting articulated section 2a are located in the strip guide hole 321 along the strip guide hole 321 is sliding Dynamic, 34 other end of the first interlocking bar and the handrail frame connector 33 are hinged to form the first rotation articulated section 3a, described Second interlocking bar, 35 other end and the front truck frame connector 31 are hinged to form the second rotation articulated section 4a, first rotation Articulated section 3a and the second rotation articulated section 4a are separately positioned on the circumference of coaxial two opposite side articulated section 1a, and described First rotation articulated section 3a and the second rotation articulated section 4a form bias, the rear car with the coaxial articulated section 1a respectively Frame connector 32 is equipped with the first long arc-shaped holes 5a for limiting the first rotation articulated section 3a rotational travel and is used for The second long arc-shaped holes 6a of the second rotation articulated section 4a rotational travel is limited, the first rotation articulated section 3a is around described same Axis articulated section 1a pushes the direct acting articulated section 2a to slide along the hole length direction of the strip guide hole 321 when rotating, to link The direct acting articulated section 2a pulls the second rotation articulated section 4a to rotate around the coaxial articulated section 1a, completes the vehicle frame knot The linkage jackknife action of structure 2.It should be noted that handrail frame connector described in the present embodiment 33 sets there are two and is symmetrically arranged at The two sides of the rear car frame connector 32, two rivetings of handrail frame connector 33 form first and rotate articulated section 3a, described First rotation articulated section 3a passes through the first long arc-shaped holes 5a and the activity in the first long arc-shaped holes 5a.Linkage, which folds, closes Occupied space is smaller after section 3 enables perambulator sufficiently to fold and fold, easy to carry and storage, in addition, the structure of linkage uses It is simpler convenient to get up.

Referring to fig. 4 to Fig. 5, locks bindiny mechanism 4 and be located between the front frame 21 and the Rear frame 22, be used for institute It states body frame structure for automotive 2 and is locked in expansion use state；The locking bindiny mechanism 4 includes locking connector 41 and the Rear frame 22 slide bars 42 disposed in parallel and the closing piece 43 being slidably attached on the slide bar 42, described 41 one end of locking connector Hinge is located in the front frame 21, and other end hinge is located on the closing piece 43, offers lockhole 431 on the closing piece 43, specifically Ground, the closing piece 43 offer slide opening, and the closing piece 43 is set on the slide bar 42 to form sliding and connect by the slide opening It connects.When closing piece 43 slides to position as shown in Figure 4, locking connector 41 and 21 Rear frame 22 of front frame form a gusseted Structure, the stability based on triangle enable perambulator to stablize in unfolded state, and structure is simple, and perambulator is unfolded Unfolded state afterwards is more stable, reliable, safe.

In order to which the body frame structure for automotive 2 reinforcement is further locked in expansion use state, so that the expansion of perambulator uses shape State is further stable, reliable, safe to ensure children's safety to a greater extent, is additionally provided with pressure on the linkage folding joint 3 Locking structure, the positive lock structure include：Lock shaft 61 is located on the handrail frame connector 33 and along the coaxial hinge Socket part 1a is circumferentially arranged, and the lock shaft 61 is made during the body frame structure for automotive 2 unfolds and folds around the coaxial articulated section 1a Circumferential movement；Locking plate 62 is rotated, be hinged on the rear car frame connector 32 and is circumferentially arranged along the coaxial articulated section 1a, The rotation locking plate 62 is equipped with the latch hook 622 for locking the lock shaft 61, and the rotation locking plate 62 is by rotation in a lock Switch between piece latched position and a locking plate unlocked position, the rotation locking plate 62 goes to latch hook when locking plate latched position 622 catch on the lock shaft 61 to lock the lock shaft 61, and the rotation locking plate 62 is 32 hinged place of rear car frame connector Equipped with the reverse reset spring 624 for reset.

Such as Fig. 6 to Figure 11, the first folding control mechanism 5 is located in the Rear frame 22, for locking or unlocking the lock Bindiny mechanism 4 is determined to expansion or folds the body frame structure for automotive 2；Described first, which folds control mechanism 5, includes：Connecting rod 53, Both ends are fixedly connected in the Rear frame 22, and the connecting rod 53 is equipped with the sliding chamber 531 of strip, in the periphery of the connecting rod 53 On be further fixed on the portion of fending off 532；Swingle 51 can be set in outside the connecting rod 53 in which rotate coaxially around the connecting rod 53 Portion, the swingle 51 are circumferentially equipped with the rotation slot 522 that the portion 532 that fends off is packed into when the swingle 51 rotation, institute It states and is equipped with rotating drum 521 in swingle 51, offer cone tank 5211, the slot of the cone tank 5211 in the rotating drum 521 Width is circumferentially reduced along cavity wall, and the rotating handles 52 for driving the swingle 51 to rotate, institute are additionally provided on the swingle 51 State rotating handles 52 be equipped with can along the first feather key 523 that the rotating handles 52 axially slide and with first feather key 523 connect and slide the backing pin 524 to put in the rotation slot 522, first feather key 523 with first feather key 523 It is equipped with backing pin reset spring between the rotating handles 52, is equipped with and is used between the rotating handles 52 and the connecting rod 53 The handle reset spring that the rotation of rotating handles 52 resets；Pull element 54 is located in the sliding chamber 531 of the strip, described Pull element 54 includes the first drawing block 541 and the second drawing block 542, and the first drawing block 541 and described second pull block 542 are disposed opposite to each other and are equipped with the first compressed spring 10 between the first drawing block 541 and the second drawing block 542, described First drawing block 541 is equipped with the first axle matched with the cone tank 5211 and pushes away inclined-plane 5411, the second drawing block 542 It is equipped with the second axis matched with the cone tank 5211 and pushes away inclined-plane 5412, the first axle pushes away inclined-plane 5411 and the second axis pushes away Inclined-plane 5412 is contacted with the cell wall of the cone tank 5211 respectively；Lock core 55, interior be equipped with of the swingle 51 locks road 511, described Lock core 55 is located in the lock road 511, is equipped with the second compressed spring for ejecting the lock core 55 outward in the lock road 511 20, offer lockhole 431 on the closing piece 43, the expansion of body frame structure for automotive 2 when using the lock core 55 put in the lockhole 431 It is interior to lock the closing piece 43.Be equipped between the lock core 55 and the first drawing block 541 for by the lock core 55 from institute It states and is pulled out in lockhole 431 to unlock the first drawstring 40 of the locking bindiny mechanism 4.Described first, which folds control mechanism, passes through one Key control can be convenient quickly control perambulator and switch between state folding and unfolding, in addition, must be first before folding baby carrier Slide the first feather key and rotate rotating handles come unlock locking bindiny mechanism after could start to fold, in this way can effectively it is pre- anti-error Accident is caused in the case where touching control button, substantially increases the safety that perambulator uses, in another aspect, being turned by rotating handles Dynamic unlock is not only more laborsaving, but also can directly lift handle after unlock and folding baby carrier and carry perambulator, convenient and efficient.

It should be noted that the linkage folding joint and the first folding control mechanism are equipped with described for unlocking The positive lock relief structure of positive lock structure, Fig. 6 to Figure 11 have shown that positive lock relief structure is folded described first Structure on control mechanism, the positive lock relief structure rotation rotating handles come unlock it is described locking bindiny mechanism it is same Positive lock structure described in Shi Xiesuo.Specifically, the positive lock relief structure includes：Movable span 623 is located at described turn On dynamic locking plate 62, locking bit 6231 is equipped in the movable span 623, lock-bit 6233, the sliding position are conciliate in sliding position 6232 6232 both sides are connected with the locking bit 6231 and 6233 phase of solution lock-bit respectively；Movable axis 71 is set to the movable span Switch in 623 and between the locking bit 6231 and the solution lock-bit 6233 to drive the rotation locking plate 62 to rotate；First Connector 74 is pushed and pulled, the upper end is connected on the movable axis 71 to drive the movable axis 71 to transport in the movable span 623 It is dynamic, wherein the first push-and-pull connector 74 and the preferred connection type of the movable axis 71 are welding, naturally it is also possible to hinged；The Two push-and-pull connectors 75, the upper end and first push-and-pull, 74 lower end of connector are hinged, second push-and-pull, 75 lower end of connector Equipped with for driving the second push-and-pull connector 75 to carry out the cunning convex 751 of push pull maneuver；Connection cover 76 is set in the Rear frame It is fixedly connected on 22 and with described 53 one end of connecting rod, the connection cover 76 is equipped with push-and-pull blind hole 761, and second push-and-pull connects Fitting 75 is slideably installed in the push-and-pull blind hole 761, and the push-and-pull blind hole 761 is set towards 53 side of connecting rod There is strip-shaped hole 7611, the cunning convex 751 is stretched out from the strip-shaped hole 7611 to translate along the 7611 hole length direction of strip-shaped hole Movement is to push and pull the second push-and-pull connector 75, between 761 bottom of push-and-pull blind hole and the second push-and-pull connector 75 Equipped with the 5th compressed spring 100；Swivel head 77, is located at 51 end of swingle, and the swivel head 77 is equipped with arcwall face 771, the arcwall face 771 includes distal shaft position 7711 and close 51 axle center of swingle far from 51 axle center of swingle Paraxial position 7712, the cunning convex 751 are close to 771 inside of arcwall face, and the swivel head 77 is rotated with the rotating handles 52 When, the cunning convex 751 switches between the distal shaft position 7711 and the paraxial position 7712 to drive the cunning convex 751 along described 7611 hole length direction of strip-shaped hole makees translational motion.When unlocking the positive lock structure, rotating handles 52 are first rotated, rotate handle Hand 52 drives swingle 51 to rotate around connecting rod 53, and the arcwall face 771 on swivel head 77 rotates with, and forces sliding convex 751 from remote Axle position 7711 slides to paraxial position 7712, while sliding convex 751 move in strip-shaped hole 7611 to close radially of the axis of rotation, and cunning is convex 751 drive the second push-and-pull connector 75 direction into hole in push-and-pull blind hole 761 mobile when mobile, the first push-and-pull connector 74 with Second pushes and pulls the movement of connector 75 and movable axis 71 is pulled to slide to solution lock-bit 6233 from the locking bit 6231 of movable span 623, drives Turn is moved locking plate 62 and is rotated, so that latch hook 622 be made to be detached from lock shaft 61, completes the unlock of positive lock structure.Similarly, when rotation is revolved Handle hand 52 can be such that positive lock structure relocks when inverting, and in order to reinforce the active force resetted, the rotation locking plate 62 are that 32 hinged place of rear car frame connector is equipped with the reverse reset spring 624 for reset, 761 bottom of push-and-pull blind hole The 5th compressed spring 100 is equipped between portion and the second push-and-pull connector 75.By the above positive lock relief structure, only need Ease rotation rotating handles can unlock the positive lock structure, structure letter while unlocking the locking bindiny mechanism It is single, it is easy to operate.

Further, the armchair structure 1 is equipped with plug 101, and the body frame structure for automotive 2 is equipped with socket 201, described Plug 101 is removably inserted into the socket 201 so that the armchair structure 1 is removably mounted on the vehicle frame knot On structure 2, the armchair structure 1 180 degree can turn ground anti-plug and realize that different use needs on the body frame structure for automotive 2 up and down It asks, wherein plug 101 is equipped with elastic card convex, and the buckle being adapted to the elastic card convex is equipped in socket 201 so that plug 101 can steadily insert in the socket 201, by press the elastic card convex so that it is deviate from the buckle then can be with The plug 101 is extracted out of socket 201；

The socket 201 is coaxial hinged with the linkage folding joint 3, and the socket 201 is equipped with card turn hole 202, the cunning convex 751 of the second push-and-pull 75 lower end of connector can put in described when driving the second push-and-pull progress push pull maneuver of connector 75 Card turn hole 202 is described to prevent the socket 201 rotation or exit the card turn hole 202 so that socket 201 rotates freely Socket 201 when rotating freely the armchair structure 1 can the relatively described body frame structure for automotive 2 be freely rotated.From the above it is found that rotation Handle hand-drive swivel head 77 rotates, and translational motion is made in the driving of swivel head 77 sliding convex 751, and sliding convex 751 drive the second push-and-pull connection Part 75 makees push pull maneuver, and the second push-and-pull connector 75 puts in or exit the card turn hole 202 to control turning for the socket 201 It moves to control rotary folding of the armchair structure 1 relative to the body frame structure for automotive 2, in conclusion i.e. rotation rotating handles Not only the positive lock structure can be unlocked while unlocking the locking bindiny mechanism, the seat can also be made simultaneously Chair structure 1 can be rotated freely relative to the body frame structure for automotive 2, and above-mentioned technical proposal controls multiple structures by a control mechanism State with carry out fold, the operation of folding is significantly simplified, so that perambulator is more convenient to use.

Wherein, linkage folding joint 3, locking bindiny mechanism 4 and the first folding control mechanism 5 collectively form linkage of unlocking knot Structure.

Further, as shown in Figure 25 to Figure 32, the Rear frame 22 is equipped with the first rear-wheel 24, the second rear-wheel 25, uses Stop the main brake 26 of first rear-wheel 24 in brake and driven by the main brake 26 to stop second rear-wheel 25 for stopping Auxiliary brake 27, first rear-wheel 24 were equipped with main brake hole 241 along wheel shaft one week；The main brake 26 includes and the Rear frame The wheel shaft mounting bases 261 of 22 connections, equipped with the step block that can be rotated around 24 wheel shaft of the first rear-wheel in the wheel shaft mounting base 261 28, the step block 28 is equipped with brake sliding block 281, and 261 periphery of wheel shaft mounting base is equipped with the brake sliding block 281 and often sets Often set recess 2611 and brake when surely live braking state brake recess 2612, the brake sliding block 281 is with the step block 28 Rotation is slided between recess 2611 and the brake recess 2612 in described often set；It is described often set recess 2611 and it is described brake it is recessed 2612 bottoms of position are taper and are disposed adjacent；The brake sliding block 281, which is equipped with, to be resisted it described often to set recess 2611 or institute The sliding block reset spring 300 for stating brake recess 2612, on the step block 28 and the wheel shaft mounting base 261 between be equipped with make it is described Step block 28 tends to the step block reset spring for often setting recess 2611, is additionally provided on the step block 28 and pulls the auxiliary brake 27 Third drawstring 60；The wheel shaft mounting base 261 is equipped with the stretching wheel shaft mounting base 261 and is caught in the main brake hole 241 Realize the brake pin assemblies 263 of brake, the brake pin assemblies 263 include brake pin shaft 2631 and brake guide 2632, described Brake pin shaft 2631 is inserted in the brake guide 2632 and sets between the brake pin shaft 2631 and the brake guide 2632 There is ejector pin spring 2633, the brake guide 2632 is equipped with stroke hole 263a, and the brake pin shaft 2631 is described equipped with putting in Stroke shaft 263b in the 263a of stroke hole；It can control the brake pin assemblies 263 when being additionally provided with rotation on the step block 28 to brake Or no rotary chute 842, the rotary chute 842 include a high position 8421, low level 8422 and connection high-order 8421 and The slideway 8423 of the low level 8422 is equipped between the wheel shaft mounting base 261 and the step block 28 for making the brake Guide 2632 resists the top cover spring 2634 of the rotary chute 842.Its structure is simple, only need to light step block, so that it may realize Linkage brake, and due to brake sliding block 281 with the cooperation for often setting recess 2611 and brake recess 2612 so that normal danger more It is accurate and reliable to stablize.

Wherein brake process is illustrated as follows：Light step block 28, rotary chute 842 rotate, and slide to a high position with slideway 8423 8421 brake guide 2632 is ejected to 24 direction of the first rear-wheel, and the pressure of ejector pin spring 2633 being squeezed makes the pin shaft 2631 that brakes It puts in main brake hole 241, to block the first rear-wheel 24, realizes brake, the sliding block 281 that brakes at this time turns with stepping on for step block 28 from normal It sets recess 2611 and slides to brake recess 2612 to stablize braking state, in addition, rotary chute 842 is logical when rotary chute 842 rotates It crosses and affects third drawstring 60 that auxiliary brake 27 is pulled to realize the brake of the second rear-wheel 25, achieve the effect that step on dual brake.Similarly, it releases Braking state need to only reset step block 28, top cover spring 2634 will brake guide 2632 to far from 24 direction of the first rear-wheel eject with Brake guide 2632 is set to resist low level 8422, while brake pin shaft 2631 is pulled away from main brake by stroke shaft 263b by stroke hole 263a Vehicle hole 241 releases brake.

Wherein, the auxiliary brake 27 includes：Accessory whorl axis mounting base 271 is connect with the Rear frame 22, the accessory whorl axis Equipped with the rotating block 29 that can be rotated around 25 wheel shaft of the second rear-wheel in mounting base 271；Auxiliary brake hole, along second rear-wheel The setting of 25 wheel shafts one week；And auxiliary brake pin assemblies 273, it is located in the accessory whorl axis mounting base 271 and stretches out the accessory whorl Axis mounting base 271 realizes brake to be caught in the auxiliary brake hole, and the auxiliary brake pin assemblies 273 include auxiliary brake pin shaft 2731 With auxiliary brake guide 2732, the auxiliary brake pin shaft 2731 is inserted in the auxiliary brake guide 2732 and the auxiliary brake pin shaft Secondary ejector pin spring 2733 is equipped between 2731 and the auxiliary brake guide 2732, the auxiliary brake guide 2732 is equipped with secondary stroke hole 273a, the auxiliary brake pin shaft 2731 are equipped with the secondary stroke shaft put in the secondary stroke hole 273a；On the rotating block 29 Being additionally provided with can control the brake of auxiliary brake pin assemblies 273 or no secondary rotary chute 942 when rotation, the pair rotary chute 942 include the secondary slideway of a secondary high position 9421, secondary low level 9422 and the connection secondary high position 9421 and the secondary low level 9422 9423, it is equipped between the accessory whorl axis mounting base 271 and the rotating block 29 for making the auxiliary brake guide 2732 resist institute State the secondary top cover spring 2734 of secondary rotary chute 942；It is equipped with and turns between on the rotating block 29 and the accessory whorl axis mounting base 271 Motion block reset spring 400；The third drawstring 60 is connect with the rotating block 29 with the third drawstring described when stepping step block 28 60 pull the rotating block 29 to rotate.The above-mentioned structure for brake makes the brake of perambulator gentler, reliably.

When rotary chute 842 passes through the process for the brake for affecting third drawstring 60 that auxiliary brake 27 is pulled to realize the second rear-wheel 25 In, third drawstring 60 pulls the rotating block 29 to rotate, and the auxiliary brake guide of a secondary high position 9421 is slided to secondary slideway 9423 2732 eject to 25 direction of the second rear-wheel, and secondary ejector pin spring 2733 pressure being squeezed makes auxiliary brake pin shaft 2731 put in auxiliary brake In hole, to block the second rear-wheel 25, brake is realized, it should be noted that when releasing the braking state of the first rear-wheel 24, rotation Block 29 loses the pulling force of third drawstring 60, and rotating block 29 is rotated and resetted by rotating block reset spring 400 at this time, secondary top cover spring 2734 eject auxiliary brake guide 2732 so that auxiliary brake guide 2732 resists secondary low level 9422 to far from 25 direction of the second rear-wheel, Pair stroke hole 273a passes through secondary stroke shaft for the pull-off auxiliary brake hole of auxiliary brake pin shaft 2731 to release brake simultaneously.

As shown in Figure 33 to Figure 35, the arm-rest frame 23 includes upper armrest support 231 and 231 sets of the upper armrest support The lower armrest support 232 that connects and it is fixed on the handle-adjusting device that on the upper armrest support 231 can control handrail flexible；Institute State the limit that handle-adjusting device includes the fixing seat 234 being mounted on armrest support 231, is fixed in the fixing seat 234 Position block 235, the movable block 236 that can be moved in the limited block 235 and the elasticity that the movable block 236 can be driven mobile are pressed Button 237, the movable block 236 are equipped with third drawstring 60, and the movable block 236 pulls when moving in the limited block 235 The third drawstring 60；The handle-adjusting device further includes the clip pedestal 238 for being fixed on armrest support 231, is set in Along the flexible sliding block 239 that handrail telescopic direction moves and edge in the clip pedestal 238 is set in the clip pedestal 238 Perpendicular to the clip sliding block 230 of handrail telescopic direction movement, the flexible sliding block 239 is connect with the third drawstring 60, described Lower armrest support 232 is equipped with several clip holes along the distribution of handrail telescopic direction, and the clip sliding block 230 is equipped with and can stick into So that the upper armrest support 231 and 232 mutually locking of lower armrest support, the clip sliding block 230 in the clip hole It is equipped with slanting plagioclase hole 2301, the flexible sliding block 239 slides in the plagioclase hole 2301 so that the flexible sliding block 239 when being moved along handrail telescopic direction in the clip sliding block 239 along being moved perpendicular to handrail telescopic direction.Structure is simple, can The flexible of arm-rest frame 23 is realized with a key, it is convenient and efficient, it is practical.

Vehicle frame knot is described below in the perspective exploded view being unfolded under use state in body frame structure for automotive 2 as can be seen from Figure 1 The folding process of structure 2：First sliding first fold control mechanism 5 on the first feather key 523, backing pin 524 with the first feather key 523 from turn Then the rotation space for retracting and reserving the portion of fending off 532 in dynamic slot 522 rotates rotating handles 52, the cone tank in rotating drum 521 5211 rotate with it, and push the first drawing block 541 in pull element 54 and the second drawing 542 relative motion of block, realize first The drawing of drawstring 40 acts, so that lock core 55 be pulled out out of described lockhole 431, has unlocked the closing piece lockked originally by lock core 55 43, that is, the locking of front frame 21 and Rear frame 22 is relieved, arm-rest frame 23 is then pulled, linkage folding joint 3 drives front frame 21 rotate to close to 22 direction of Rear frame simultaneously with arm-rest frame 23, realize the folding of body frame structure for automotive 2.Similarly, the exhibition of body frame structure for automotive 2 Open procedure only needs opposite direction to rotate rotating handles 52, and the sliding of the first feather key 523 pulls backing pin under the action of backing pin reset spring 524 put in the rotation slot 522 and to prevent rotating handles 52 from rotating, do so the maloperation that handle can be effectively prevented and cause Safety accident, next pull arm-rest frame 23, linkage folding joint 3 drives front frame 21 and arm-rest frame 23 simultaneously to far from after The rotation of 22 direction of vehicle frame, realizes the expansion of body frame structure for automotive 2.

The armchair structure 1 includes upper chair frame 11, lower chair frame 12, preceding chair frame 13, chair frame folding joint 14 and the second folding Control mechanism 15, the upper chair frame 11, the lower chair frame 12 and the preceding chair frame 13 are mutual by the chair frame folding joint 14 It is hinged and when the armchair structure 1 is unfolded to use that the upper chair frame 11, the lower chair frame 12 and the preceding chair frame 13 is mutual Locking positioning, the second folding control mechanism 15 are connect to control the chair frame folding joint with the chair frame folding joint 14 14 unlock and fold.

As shown in Figure 12 to Figure 16, the chair frame folding joint 14 includes：Upper chair frame connector 141 is equipped with the first hinge Socket part 1411 and the first connecting portion 1412 connecting with the upper chair frame 11, first articulated section 1411 are equipped with first axle Hole 1411a, 1411 end face of the first articulated section and the first cant protrusion along the setting of the periphery the first shaft hole 1411a are located at 1411b and the first tooth socket 1411c being arranged along the first cant periphery protrusion 1411b, in first articulated section 1411 The upper end face opposite with the first tooth socket 1411c is equipped with the second tooth socket being arranged along the periphery the first shaft hole 1411a 1411c；First rotation top convex body 142, circumference are equipped with the first cant portion matched with the first cant protrusion 1411b 1421, it is internally provided with the card hole 1422 for transmitting rotary power, first rotation top convex body 142 is co-axially located at described In the installation that is circumferentially staggered, first rotation top convex body 142 in first articulated section 1411 and with the first cant protrusion 1411b First cant portion 1421 described in when rotation climbs along the first cant protrusion 1411b keeps first rotation top convex body 142 past Axial ejection；First latching tooth 143, inlay card is in the first tooth socket 1411c, one end and first rotation top convex body 142 end face offsets, the first rotation top convex body 142 toward pushed when axial ejection the first latching tooth 143 toward axial fortune It moves and is detached from the first tooth socket 1411c；Wheel-chair connector 144, be equipped with the second articulated section 1441 and with the vehicle frame knot The second connecting portion 1442 that structure 2 connects, second articulated section 1441 is equipped with the third tooth socket 1441a being circumferentially arranged, described First latching tooth 143 in axial part inlay card in the third tooth socket 1441a, the first latching tooth 143 and the third tooth It is equipped with the axial gap for the first latching tooth 143 axial movement between in slot 1441a, the first latching tooth 143 and described the It is equipped between two articulated sections 1441 for the first latching tooth 143 to be pushed up to the third compressed spring toward the first tooth socket 1411c； Second rotation top convex body 145, be equipped with rotating base 1451, along the axially extended axis 1452 of the rotating base 1451 and Along in the second cant portion 1453 that the rotating base 1451 is circumferentially arranged, second cant portion 1453 is equipped with the second drawing Portion 1454, the axis 1452 is axially extending along the rotating base 1451 and puts in across the first shaft hole 1411a described So that second rotation top convex body 145 drives first rotation when rotating in the card hole 1422 of first rotation top convex body 142 Convex body 142 is pushed up to rotate；Second latch 146 is equipped with rotation chamber 1461, and the rotation chamber 1461 is in bottom circumferentially arranged with second Cant protrusion 1461a, second latch 146 are inlaid in the second tooth socket 1411c, second latch 146 and described The axial gap for second latch 146 axial movement is equipped between in second tooth socket 1411c, the rotating base 1451 is same Axis is inlaid in the rotation chamber 1461 and second cant portion 1453 and the second cant protrusion 1461a is staggered circumferentially Installation has between second cant portion 1453 and the second cant protrusion 1461a along 1453 turns of second cant portion The stroke gap 1454a in dynamic direction, when second rotation top convex body 145 rotates described in the second cant portion 1453 first turn over it is described Stroke gap 1454a climbs along the second cant protrusion 1461a again makes second latch 146 be detached from institute toward axial movement The second tooth socket 1411c is stated, the second rotation is equipped between the second rotation top convex body 145 and second latch 146 and pushes up convex body Reset spring 200；Lower chair frame connector 147, the third for being equipped with third articulated section 1471 and being connect with the lower chair frame 12 Interconnecting piece 1472, the third articulated section 1471 are equipped with the 4th tooth socket 1471a being circumferentially arranged, and second latch 146 exists Axial part inlay card is in the 4th tooth socket 1471a；Preceding chair frame connector 148, be equipped with the 4th articulated section 1481 and with The 4th interconnecting piece 1482 that the preceding chair frame 13 connects, the 4th articulated section 1481 is cut with scissors with 1471 phase of third articulated section It connects.It is equipped between second latch 146 and the third articulated section 1471 for pushing up second latch 146 to described the The 4th compressed spring of two tooth socket 1411c, certainly, the 4th compressed spring can also be located on the 4th articulated section 1481, institute The 4th compressed spring is stated to push up second latch 146 to the second tooth socket 1411c across the third articulated section 1471.On The folding of perambulator can more easily be realized by stating chair frame folding joint, keep its folding more abundant, occupied space be saved, convenient for taking Band and storage.

Further, first articulated section 1411 is equipped with the center of circle and is overlapped with the hinged center in first articulated section 1411 The first circular hole 1411a, the first circular hole 1411a is equipped with the first beginning 1411aa and first end 1411ab, institute It states third articulated section 1471 and is equipped with the second circular hole 1471b that the center of circle is overlapped with the hinged center in the third articulated section 1471, The second circular hole 1471b is equipped with the second beginning 1471ba and second end 1471bb, makes in the chair frame structure 1 expansion The second end 1471bb is Chong Die with the first beginning 1411aa when with state, eccentric in the 4th articulated section 1,481 1 Position is equipped with linkage portion 1481a, is fixed on the linkage portion 1481a through the circle of the first circular hole 1411a and second The linkage pin shaft of arc hole 1471b, the chair frame structure 1 first turn to second beginning in the third articulated section 1471 when folding The state of 1471ba and the first beginning 1411aa overlapping, when continuing to rotate the third articulated section 1471 described in the second beginning 1471ba drives the linkage pin shaft to go to the state that the second beginning 1471ba and first end 1411ab is overlapped, from And realize turning folding for upper chair frame 11, lower chair frame 12 and preceding chair frame 13.The structure can be realized chair frame 11,12 and of lower chair frame The linkage of preceding chair frame 13 is folded to be unfolded with linkage, and clever structure folds more smooth so that perambulator is more convenient to use.

As shown in Figure 20 to Figure 24, the second folding control mechanism 15 includes：Package assembly 151, is fixed on described In chair frame 11；Internal member 152 is set in the package assembly 151, the internal member 152 be equipped with sliding slot 1521 and The second feather key 1522 slided in the sliding slot 1521, second feather key 1522 is equipped with to be slided with second feather key 1522 The gear transfer part 1522a of direction movement, is equipped between second feather key 1522 and the internal member 152 and is used for the gear transfer part The gear that 1522a resets turns reset spring；Switching part 153, hinge are located on the internal member 152, and the switching part 153 is equipped with The card transfer part 1531 for protruding from 153 peripheral surface of switching part rotates the card transfer part 1531 and institute when the switching part 153 Gear transfer part 1522a is stated in radial intersection, the gear transfer part 1522a blocks institute when by 153 switching of switching part to first angle The rotation of card transfer part 1531 is stated, is equipped between the switching part 153 and the internal member 152 for the switching part 153 reset Switching reset spring is additionally provided with the second drawstring 50 for rotating with the switching part 153 and realizing drawing, institute on the switching part 153 The second drawstring 50 is stated to connect with second pulling portion 1454.Second, which folds control mechanism, can realize that rotation is different by drawstring Only the automatic of perambulator need to can be realized by light switching in the secondary grading unlock for the different distance that angle control stretches, operator Substep fold so that perambulator be folded in it is convenient and efficient on the basis of it is more smooth, stables, safely.

The folding of chair frame structure 1 is described below in the schematic diagram being unfolded under use state in chair frame structure 1 as can be seen from Figure 1 Folded process：First sliding second folds the second feather key 1522 on control mechanism 15, the gear transfer part 1522a on the second feather key 1522 with Sliding to reserve the space rotated for card transfer part 1531, at this time by the up switching first angle a of switching part 153, this programme It is preferred that first angle a is 30 degree~60 degree, then unclamping the second feather key 1522 answers gear transfer part 1522a to block card transfer part 1531 Position, the second drawstring 50 has been pulled first distance at this time, continues switching switching part 153 to second angle b, second angle b is preferred 90 degree~150 degree, the second drawstring 50 has been pulled second distance at this time.When the second drawstring 50 has been pulled first distance, chair The second rotation top convex body 145 on frame folding joint 14 is pulled, and the first rotation of driving top convex body 142 rotates, the first rotation top Convex body 142 original will be stuck in simultaneously when rotating upper chair frame connector 141 and the first latching tooth 143 on Wheel-chair connector 144 push up to Wheel-chair connector 144, chair frame connector 141 and Wheel-chair connector 144 is freely rotated folding in realization；It should be noted that As shown in figure 12, when the second drawstring 50 has been pulled first distance, the second cant portion 1453 has just turned stroke gap 1454a, therefore when the second drawstring 50 has been pulled second distance, the first rotation top convex body 142 continues to rotate, thus will be originally same When the second latch 146 for being stuck on chair frame connector 141 and lower chair frame connector 147 push up downward chair frame connector 147, realize Folding is freely rotated in upper chair frame connector 141 and lower chair frame connector 147；It needs to illustrate in advance, be opened up in chair frame structure 1 Second end 1471bb is Chong Die with the first beginning 1411aa when opening use state, and the pin shaft that will link is stuck to be connected to lock preceding chair frame Fitting 148, third articulated section 1471 first turns to the second beginning 1471ba and the first beginning 1411aa weight when chair frame structure 1 folds Folded state, second beginning 1471ba drives linkage pin shaft to go to the second beginning 1471ba when continuing to rotate third articulated section 1471 With the state of first end 1411ab overlapping, that is, chair frame connector 147 and preceding chair frame connector 148 is descended first to be folded to overlapping, so Chair frame connector 148 is Chong Die with the upper folding of chair frame connector 141 together before descending chair frame connector 147 to drive afterwards, thus on realizing Turning folding between chair frame 11, lower chair frame 12 and preceding chair frame 13.Similarly, expansion chair frame structure only needs direction operation second to fold Control mechanism, second rotation top convex body reset spring 200 guidance second rotation top convex body 145 invert, gradually spread out chair frame 11, Lower chair frame 12 and preceding chair frame 13, therefore not to repeat here.

It should be noted that locking bindiny mechanism 4 is symmetrical arranged in perambulator two sides, and led to by the first folding control mechanism 5 It crosses and is both symmetrically arranged drawstring while controlling；Chair frame folding joint 14 is symmetrical arranged in perambulator two sides, and is folded and controlled by second Mechanism 15 processed is by being both symmetrically arranged drawstring while controlling；The positive lock structure and the positive lock relief structure It is symmetrical arranged in perambulator two sides, and is driven and moved at the same time by rotating handles；The folding joint 3 that links is also symmetrical in perambulator two sides Setting, therefore do not repeat excessively.In addition, the first drawstring, the second drawstring described in the present embodiment and third drawstring can be Di Ni Ma rope and wirerope, in the present embodiment preferably wirerope.

In conclusion the application is had the advantages that by the improvement in structure：

1, occupied space is smaller after linkage folding joint enables perambulator sufficiently to fold and fold, easy to carry and storage, In addition, the structure of linkage is more convenient to use quick；

2, stability of the bindiny mechanism based on triangle is locked, perambulator is stablized in unfolded state, structure letter It is single, and make the unfolded state after perambulator expansion more stable, reliable, safe.

3, body frame structure for automotive reinforcement further can be locked in expansion use state by positive lock structure, so that perambulator Expansion use state it is further stable, it is reliable, safety to ensure children's safety to a greater extent；Positive lock is cooperated to release knot Structure only needs ease rotation rotating handles that can unlock the positive lock structure while unlocking the locking bindiny mechanism, Structure is simple, easy to operate.

4, described first control mechanism is folded by a key control, can be convenient quickly control perambulator and folding and unfolding Switch between state, in addition, must first slide the first feather key before folding baby carrier and rotate rotating handles to unlock locking connection It could start to fold after mechanism, accident can be caused in the case where effective pre- Touch-control error prevention button in this way, substantially increase child The safety that vehicle uses, in another aspect, it is not only more laborsaving by rotating handles rotation unlock, but also in unlock and folding baby carrier After can directly lift handle carry perambulator, it is convenient and efficient.

5, the brake structure structure of override type is simple, only need to light step block, so that it may realize linkage brake, and due to brake Sliding block is with the cooperation for often setting recess and the recess that brakes so that normal danger is more accurate, reliable, stable.

6, chair frame folding joint can more easily realize the folding of perambulator, keep its folding more abundant, save and occupy sky Between, easy to carry and storage, in addition, its linkage that can be realized chair frame, lower chair frame and preceding chair frame folds and linkage expansion, knot Structure is ingenious, so that perambulator is more convenient to use, folds more smooth.

7, second the two of the different distance that control mechanism can realize that rotation different angle control is stretched by drawstring is folded Secondary classification unlock, the automatic step that perambulator need to only can be realized in operator by light switching folds, so that perambulator is folded in More smooth, stable on the basis of convenient and efficient, safety.

It is the one or more embodiments provided in conjunction with particular content as described above, does not assert the specific reality of the application It applies and is only limited to these instructions.It is all approximate with the present processes, structure etc., identical, or under the application concept thereof It makes several technologies to deduce, or replacement all should be considered as the protection scope of the application.

Claims (10)

1. can fast folding perambulator, including armchair structure interconnected (1) and body frame structure for automotive (2), the body frame structure for automotive (2) Including the front frame (21), Rear frame (22) and arm-rest frame (23) being hinged, which is characterized in that the body frame structure for automotive (2) is also Including：

It links folding joint (3), is set to the common of the front frame (21), the Rear frame (22) and the arm-rest frame (23) Hinged place, for driving the front frame (21) and the arm-rest frame (23) while relatively rotating；

It locks bindiny mechanism (4), is located between the front frame (21) and the Rear frame (22), be used for the vehicle frame knot Structure (2) is locked in expansion use state；

First folds control mechanism (5), is located on the Rear frame (22), for locking or unlocking the locking bindiny mechanism (4) to be unfolded or fold the body frame structure for automotive (2)；

The armchair structure (1) includes upper chair frame (11), lower chair frame (12), preceding chair frame (13), chair frame folding joint (14) and Two-fold control mechanism (15), the upper chair frame (11), the lower chair frame (12) and the preceding chair frame (13) pass through the chair frame Folding joint (14) is hinged and when the armchair structure (1) is unfolded to use by the upper chair frame (11), the lower chair frame (12) and the preceding chair frame (13) mutual locking positioning, described second control mechanism (15) and the chair frame folding joint are folded (14) it connects to control chair frame folding joint (14) unlock and fold.

2. it is according to claim 1 can fast folding perambulator, which is characterized in that the locking bindiny mechanism (4) includes It locks connector (41) and the Rear frame (22) slide bar disposed in parallel (42) and is slidably attached at the slide bar (42) closing piece (43) on, the locking connector (41) one end hinge are located on the front frame (21), and other end hinge is located at institute It states on closing piece (43), offers lockhole (431) on the closing piece (43).

3. it is according to claim 2 can fast folding perambulator, which is characterized in that it is described first fold control mechanism (5) Including：

Connecting rod (53), both ends are fixedly connected on the Rear frame (22), and the connecting rod (53) is equipped with the sliding chamber of strip (531), the portion of fending off (532) are further fixed on the periphery of the connecting rod (53)；

Swingle (51) can be set in the connecting rod (53) outside, the rotation in which rotate coaxially around the connecting rod (53) Bull stick (51) is circumferentially equipped with the rotation slot (522) that portion (532) of fending off are packed into when the swingle (51) rotation, described Rotating drum (521) are equipped in swingle (51), offer cone tank (5211), the cone tank in the rotating drum (521) (5211) groove width is circumferentially reduced along cavity wall, is additionally provided on the swingle (51) for driving the swingle (51) to rotate Rotating handles (52), the rotating handles (52) are equipped with can be along the first feather key that the rotating handles (52) axially slide (523) and with first feather key (523) it connect and slides with first feather key (523) to put in the rotation slot (522) backing pin (524) in is equipped with backing pin reset spring, institute between first feather key (523) and the rotating handles (52) The handle for being equipped between rotating handles (52) and the connecting rod (53) and resetting for the rotating handles (52) rotation is stated to reset Spring；

Pull element (54) is located in the strip sliding chamber (531), and the pull element (54) includes the first drawing block (541) and the second drawing block (542), first drawing block (541) and described second pulls block (542) and is disposed opposite to each other and described The first compressed spring (10) are equipped between first drawing block (541) and second drawing block (542), the first drawing block (541) it is equipped with the first axle matched with the cone tank (5211) to push away inclined-plane (5411), in second drawing block (542) It is pushed away inclined-plane (5412) equipped with the second axis matched with the cone tank (5211), the first axle pushes away inclined-plane (5411) and second Axis pushes away inclined-plane (5412) and contacts respectively with the cell wall of the cone tank (5211)；

Lock core (55), the swingle (51) is interior to be equipped with lock road (511), and the lock core (55) is located in the lock road (511), institute It is equipped with the second compressed spring (20) for ejecting the lock core (55) outward in the road Shu Suo (511), is opened up on the closing piece (43) Have lockhole (431), to put in the lockhole (431) interior to lock for the lock core (55) when using for the body frame structure for automotive (2) expansion State closing piece (43), be equipped between the lock core (55) and first drawing block (541) for by the lock core (55) from described It is pulled out in lockhole (431) to unlock the first drawstring (40) of locking bindiny mechanism (4).

4. it is according to claim 1 can fast folding perambulator, which is characterized in that the linkage folding joint (3) includes The front truck frame connector (31) being connect with the front frame (21), the rear car frame connector (32) being connect with the Rear frame (22) And the handrail frame connector (33) connecting with the arm-rest frame (23), the rear car frame connector (32) are equipped with hole length direction The strip guide hole (321) parallel with the Rear frame (22), the front truck frame connector (31), the rear car frame connector (32) With the mutually hinged coaxial articulated section (1a) of formation in the end of the handrail frame connector (33)；

The linkage folding joint (3) further includes the first interlocking bar (34) and the second interlocking bar (35), first interlocking bar (34) one end and second interlocking bar (35) one end are hinged to be formed direct acting articulated section (2a), and the direct acting articulated section (2a) sets It is slided in the strip guide hole (321) along the hole length direction of the strip guide hole (321), first interlocking bar (34) is another End is hinged to form the first rotation articulated section (3a) with the handrail frame connector (33), the second interlocking bar (35) other end It is hinged to form the second rotation articulated section (4a) with the front truck frame connector (31), first rotation articulated section (3a) and institute It states the second rotation articulated section (4a) to be separately positioned on the circumference of two opposite side of coaxial articulated section (1a), and first rotation Articulated section (3a) and second rotation articulated section (4a) form eccentric, the Rear frame with the coaxial articulated section (1a) respectively Connector (32) be equipped with for limit it is described first rotation articulated section (3a) rotational travel the first long arc-shaped holes (5a) and For limiting second long arc-shaped holes (6a) of described second rotation articulated section (4a) rotational travel, first rotation articulated section (3a) pushes the direct acting articulated section (2a) long along the hole of the strip guide hole (321) when rotating around the coaxial articulated section (1a) Direction sliding, so that the direct acting articulated section (2a) of linking pulls second rotation articulated section (4a) around the coaxial articulated section (1a) rotation, completes the linkage jackknife action of the body frame structure for automotive (2).

5. it is according to claim 1 can fast folding perambulator, which is characterized in that the chair frame folding joint (14) packet It includes：

Upper chair frame connector (141), first for being equipped with the first articulated section (1411) and connecting with the upper chair frame (11) connect Socket part (1412), first articulated section (1411) are equipped with first shaft hole (1411a), are located at first articulated section (1411) End face and convex along the first cant raised (1411b) of the first shaft hole periphery (1411a) setting and along first cant Rise the periphery (1411b) setting the first tooth socket (1411c), on first articulated section (1411) with first tooth socket (1411c) opposite end face is equipped with the second tooth socket (1411c) being arranged along the first shaft hole periphery (1411a)；

First rotation top convex body (142), circumference are equipped with the first cant portion matched with first cant raised (1411b) (1421), the card hole (1422) for transmitting rotary power, first rotation top convex body (142) coaxial arrangement are internally provided with In the installation that is circumferentially staggered, first rotation in first articulated section (1411) and with first cant raised (1411b) First cant portion (1421) described in when turning top convex body (142) rotation climbs along first cant raised (1411b) makes described the One rotation top convex body (142) is ejected toward axial；

First latching tooth (143), inlay card is in first tooth socket (1411c), one end and first rotation top convex body (142) a end face offsets, and first rotation is pushed up pushes the first latching tooth (143) past when convex body (142) are past axially to be ejected It is axially moved and is detached from first tooth socket (1411c)；

Wheel-chair connector (144), the second connection for being equipped with the second articulated section (1441) and being connect with the body frame structure for automotive (2) Portion (1442), second articulated section (1441) are equipped with the third tooth socket (1441a) being circumferentially arranged, the first latching tooth (143) in axial part inlay card in the third tooth socket (1441a), the first latching tooth (143) and the third tooth socket The axial gap for the first latching tooth (143) axial movement, the first latching tooth (143) and institute are equipped between in (1441a) It states and is equipped between the second articulated section (1441) for the first latching tooth (143) to be pushed up the toward first tooth socket (1411c) Three compressed springs；

Second rotation top convex body (145) is equipped with rotating base (1451), along the axially extended card of the rotating base (1451) Axis (1452) and edge are in the second cant portion (1453) that the rotating base (1451) is circumferentially arranged, second cant portion (1453) it is equipped with one second pulling portion (1454), the axis (1452) is axially extending along the rotating base (1451) and wears The first shaft hole (1411a) is crossed to put in the card hole (1422) on first rotation top convex body (142) so that second rotation Turn to drive first rotation top convex body (142) rotation when the rotation of top convex body (145)；

Second latch (146) is equipped with rotation chamber (1461), and the rotation chamber (1461) is in bottom circumferentially arranged with the second cant Raised (1461a), second latch (146) are inlaid in second tooth socket (1411c), second latch (146) and The axial gap for second latch (146) axial movement, the rotation base are equipped between in second tooth socket (1411c) Portion (1451) is coaxially inlaid in the rotation chamber (1461) and second cant portion (1453) and second cant are raised (1461a) has edge between the installation that is circumferentially staggered, second cant portion (1453) and second cant raised (1461a) The stroke gap (1454a) of second cant portion (1453) rotation direction, second rotation top convex body (145) rotate when institute Stating the second cant portion (1453) and first turning over the stroke gap (1454a) and climb again along second cant raised (1461a) makes Second latch (146) is detached from second tooth socket (1411c) toward axial movement, second rotation top convex body (145) It is equipped with the second rotation between second latch (146) and pushes up convex body reset spring (200)；

Lower chair frame connector (147), is equipped with third articulated section (1471) and the third connecting with the lower chair frame (12) connects Socket part (1472), the third articulated section (1471) are equipped with the 4th tooth socket (1471a) being circumferentially arranged, second latch (146) in axial part inlay card in the 4th tooth socket (1471a), second latch (146) and the third are hinged It is equipped between portion (1471) for second latch (146) to be pushed up to the 4th compressed spring to second tooth socket (1411c)；

Preceding chair frame connector (148), the 4th connection for being equipped with the 4th articulated section (1481) and being connect with the preceding chair frame (13) Portion (1482), the 4th articulated section (1481) are hinged with the third articulated section (1471).

6. it is according to claim 5 can fast folding perambulator, which is characterized in that set on first articulated section (1411) The first circular hole (1411a) for thering is the center of circle to be overlapped with the hinged center of first articulated section (1411), first circular hole (1411a) is equipped with the first beginning (1411aa) and first end (1411ab), and the third articulated section (1471) is equipped with circle The second circular hole (1471b) that the heart is overlapped with the hinged center of the third articulated section (1471), second circular hole (1471b) Be equipped with the second beginning (1471ba) and second end (1471bb), the chair frame structure (1) expansion use state when described in Second end (1471bb) is Chong Die with the first beginning (1411aa), on the eccentric position in the 4th articulated section (1481) one Equipped with linkage portion (1481a), it is fixed on the linkage portion (1481a) through first circular hole (1411a) and the second circle The linkage pin shaft in arc hole (1471b), the third articulated section (1471) first turns to described the when the chair frame structure (1) folds The state at two beginnings (1471ba) and first beginning (1411aa) overlapping, when continuing to rotate third articulated section (1471) Second beginning (1471ba) drives the linkage pin shaft to go to second beginning (1471ba) and the first end The state of (1411ab) overlapping, to realize that upper chair frame (11), lower chair frame (12) and preceding chair frame (13) turn folding.

7. it is according to claim 5 can fast folding perambulator, which is characterized in that it is described second fold control mechanism (15) Including：

Package assembly (151) is fixed on the upper chair frame (11)；

Internal member (152) is set in the package assembly (151), the internal member (152) be equipped with sliding slot (1521) and The second feather key (1522) slided in the sliding slot (1521), second feather key (1522) are equipped with second feather key (1522) the gear transfer part (1522a) of glide direction movement, is equipped between second feather key (1522) and the internal member (152) The gear resetted for gear transfer part (1522a) turns reset spring；

Switching part (153), hinge are located on the internal member (152), and the switching part (153) is equipped with and protrudes from the switching The card transfer part (1531) of part (153) peripheral surface rotates the card transfer part (1531) and the gear when switching part (153) and turns Portion (1522a) is in radial intersection, and the gear transfer part (1522a) blocks institute when by switching part (153) switching to first angle Card transfer part (1531) rotation is stated, is equipped between the switching part (153) and the internal member (152) and is used for the switching part (153) the switching reset spring resetted is additionally provided on the switching part (153) to rotate with the switching part (153) and realizes drawing The second drawstring (50), second drawstring (50) connect with second pulling portion (1454).

8. it is according to claim 1-7 can fast folding perambulator, which is characterized in that on the Rear frame (22) Stop the main brake (26) of first rear-wheel (24) and by described equipped with the first rear-wheel (24), the second rear-wheel (25), for stopping Main brake (26), which drives, stops the auxiliary brake (27) of second rear-wheel (25) for stopping, and first rear-wheel (24) was along wheel shaft one week Equipped with main brake hole (241)；

The main brake (26) includes the wheel shaft mounting base (261) connecting with the Rear frame (22), the wheel shaft mounting base (261) equipped with the step block (28) that can be rotated around the first rear-wheel (24) wheel shaft on, the step block (28) is equipped with brake sliding block (281), recess (2611) and brake are often set equipped with what brake sliding block (281) was often set in wheel shaft mounting base (261) periphery Che Shiding lives the brake recess (2612) of braking state, and the brake sliding block (281) rotates with the step block (28) described normal It sets and is slided between recess (2611) and the brake recess (2612), the brake sliding block (281) is described equipped with it is resisted Often set the sliding block reset spring of recess (2611) or brake recess (2612), the step block (28) and the wheel shaft mounting base (261) being equipped between on makes the step block (28) tend to the step block reset spring for often setting recess (2611), the step block (28) the third drawstring (60) for pulling the auxiliary brake (27) is additionally provided on；

The wheel shaft mounting base (261) is equipped with the stretching wheel shaft mounting base (261) and is caught in the main brake hole (241) in fact The brake pin assemblies (263) now to brake, the brake pin assemblies (263) include brake pin shaft (2631) and brake guide (2632), the brake pin shaft (2631) is inserted in the brake guide (2632) and the brake pin shaft (2631) and the brake Ejector pin spring (2633) are equipped between vehicle guide (2632), the brake guide (2632) is equipped with stroke hole (263a), the brake Vehicle pin shaft (2631) is equipped with the stroke shaft put in the stroke hole (263a)；

It is additionally provided with when rotation on the step block (28) and can control brake pin assemblies (263) brake or no rotary chute (842), the rotary chute (842) includes that high-order (8421), low level (8422) and the connection high position are (8421) and described The slideway (8423) of low level (8422) is equipped with described for making between the wheel shaft mounting base (261) and the step block (28) Brake guide (2632) resists the top cover spring (2634) of the rotary chute (842).

9. it is according to claim 1 can fast folding perambulator, which is characterized in that the arm-rest frame (23) includes upper handrail The lower armrest support (232) and be fixed on the upper armrest support that bracket (231) and the upper armrest support (231) are socketed (231) handle-adjusting device that can control handrail flexible on；

The handle-adjusting device includes the fixing seat (234) being mounted on armrest support (231), is fixed on the fixing seat (234) limited block (235) in, the movable block (236) that can be moved in the limited block (235) and the movement can be driven The mobile elastic button (237) of block (236), the movable block (236) are equipped with third drawstring (60), the movable block (236) The third drawstring (60) is pulled when moving in the limited block (235)；

The handle-adjusting device further includes the clip pedestal (238) for being fixed on armrest support (231), is set in the clip It along the flexible sliding block (239) that handrail telescopic direction moves and is set in the clip pedestal (238) along hanging down in pedestal (238) Directly in the clip sliding block (230) of handrail telescopic direction movement, the flexible sliding block (239) connect with the third drawstring (60), The lower armrest support (232) is equipped with several clip holes along the distribution of handrail telescopic direction, sets on the clip sliding block (230) Having can stick into the clip hole so that the upper armrest support (231) and the lower armrest support (232) mutually locking, described Clip sliding block (230) is equipped with slanting plagioclase hole (2301), and the flexible sliding block (239) is sliding in the plagioclase hole (2301) It moves so that the flexible sliding block (239) is stretched on the interior edge of the clip sliding block (239) when moving along handrail telescopic direction perpendicular to handrail The movement of contracting direction.

10. it is according to claim 3 can fast folding perambulator, which is characterized in that the armchair structure (1) be equipped with insert Head (101), the body frame structure for automotive (2) are equipped with socket (201), and the plug (101) is removably inserted into the slot So that the armchair structure (1) is removably mounted on the body frame structure for automotive (2) in portion (201), the socket (201) with The linkage folding joint (3) is coaxial hinged, and the socket (201) is equipped with card turn hole (202), and first folds control mechanism (5) it is additionally provided on：

Second push-and-pull connector (75), lower end are equipped with for driving second push-and-pull connector (75) to carry out push pull maneuver Sliding convex (751), the second push-and-pull connector (75) put in the card turn hole (202) when releasing to prevent the socket (201) and turn It is dynamic；

Connection cover (76) is set on the Rear frame (22) and is fixedly connected with the connecting rod (53) one end, the company It connects lid (76) and is equipped with push-and-pull blind hole (761), second push-and-pull connector (75) is slideably installed in the push-and-pull blind hole (761) in, the push-and-pull blind hole (761) is being equipped with strip-shaped hole (7611) towards the connecting rod (53) side, and the cunning is convex (751) it is stretched out from the strip-shaped hole (7611) and pushes and pulls described the to make translational motion along the strip-shaped hole (7611) hole length direction Two push-and-pulls connector (75) are equipped with the 5th pressure between the push-and-pull blind hole (761) bottom and second push-and-pull connector (75) Contracting spring (100)；

Swivel head (77) is located at the swingle (51) end, and the swivel head (77) is equipped with arcwall face (771), described Arcwall face (771) includes distal shaft position (7711) and the close swingle (51) axle center far from the swingle (51) axle center Paraxial position (7712), the cunning convex (751) are close on the inside of the arcwall face (771), and the swivel head (77) is with the rotation handle When hand (52) rotates, the cunning convex (751) switches between the distal shaft position (7711) and the paraxial position (7712) to drive The cunning convex (751) makees translational motion along the strip-shaped hole (7611) hole length direction, and the cunning convex (751) makees band when translational motion It moves second push-and-pull connector (75) and realizes push pull maneuver.