CN108327770A

CN108327770A - Pushchair

Info

Publication number: CN108327770A
Application number: CN201810185912.9A
Authority: CN
Inventors: 严广; 黄伟诗
Original assignee: Zhongshan Special Baby Products Co Ltd
Current assignee: Zhongshan Special Baby Products Co Ltd
Priority date: 2018-03-07
Filing date: 2018-03-07
Publication date: 2018-07-27

Abstract

This application discloses Pushchair, including two groups of wheel group framves, two support the front lower link, two support the front upper connecting rod, two hinged elastic joints, two joint unlocking structures, one group of bottom cross-articulation component, two groups of support articulated linkage components and one group of inclination cross-articulation component.The application is matched by joint unlocking structure with hinged elastic joint to realize that clamping lock fixes the preceding lower link of expansion and preceding upper connecting rod, or the function of upper connecting rod before prestack lower link is stated is received in unlock, then it realizes to link by bottom hinge assembly and support articulated linkage component and inclination cross-articulation component again and receives the folded or preceding upper connecting rod of the expansion that links and preceding lower link and wheel group frame, achieve the purpose that receipts are folded regular to which poststack can not only be received in vehicle, and it can be by supporting articulated linkage component to achieve the purpose that further increase vehicle rigidity when vehicle is unfolded, and then embody the application go out it is easy to carry, harvesting does not take up space, and there is the protrusion effect of high degree of rigidity upon deployment.

Description

Pushchair

【Technical field】

This application involves the technical field of perambulator, in particular to a kind of Pushchair.

【Background technology】

Baby is from birth to early childhood, since limb development is sound not enough, it is therefore desirable to by many equipment come auxiliary Help life.Such as can not walk for a long time to provide, or can also assist moving when the baby child that study is walked is outgoing, mitigate The burden that parent's long-time hand is embraced, baby stroller considerable equipment when being exactly this stage baby or outgoing child.

Existing baby stroller exactly receives folded problem using upper one of the function of quite being paid attention to by parent.Due to baby Rather voluminous after the expansion of youngster's trolley, if can not by receipts it is folded, reduce volume, put and not only take up space at home, it is outgoing It is not easy to the boot of merging automobile when carrying or takes public means of transport.

But take a broad view of baby stroller on the market and receiving poststack, though can be compared with expansion when reduce volume, but still there are It is not regular enough so that it cannot further reduce volume to receive poststack；And there is also the problems that rigidity is inadequate when vehicle is unfolded.

【Invention content】

In order to solve the above-mentioned technical problem the application, provides a kind of Pushchair.

In order to solve the above technical problems, the application is achieved through the following technical solutions：

Pushchair, including two groups of wheel group framves, two support the front lower link, two support the front upper connecting rod and two are hinged Elastic joint, the preceding lower link lower end is hinged with wheel group frame front end and when organizing work, ramp-like in retreating State, and the hinged elastic joint is connected between the upper end and the preceding upper connecting rod lower end, then when the hinged elastic joint In loosen state when, the preceding upper connecting rod, which is rotated by the hinged elastic joint and receives to fold, is close to the front lower company Bar；

The Pushchair further includes two joint unlocking structures, one group of bottom cross-articulation component, two groups of supports Articulated linkage component and one group of inclination cross-articulation component；

The joint unlocking structure is set in the preceding upper connecting rod and is connected with the hinged elastic joint, and to pine Solve the hinged elastic joint；

The bottom cross-articulation component cross-articulation is between the two wheel group framves, and to drive two vehicles The two wheel group framves are unfolded to middle folding, or to support in wheel group frame；

The support articulated linkage member hinges are between the wheel group frame and the preceding lower link, and it includes support Articulated joints, Auxiliary support articulation piece and connection slide cartridge, the connection slide cartridge are sheathed on the wheel group frame, and can edge The wheel group frame longitudinal direction reciprocatingly slides；The support articulated joints is articulated with the wheel group frame and the front lower company It is in erected state between bar, and when it is organized work；The Auxiliary support articulation piece is articulated with the support articulated joints and institute Between stating connection slide cartridge, and when it is organized work, in the state of turning forward；The support articulated joints and Auxiliary support hinge Fitting and the connection slide cartridge can be used to pull when matching the preceding lower link around its be hinged lower end rotation receive downwards it is folded close to On the upside of the wheel group frame, or it can be used to support the preceding lower link to be hinged lower end rotation around it and be unfolded upwards so that before described Lower link is in state of organizing work；

The inclination cross-articulation component cross-articulation is used between the support articulated joints and the wheel group frame To support articulated joints to be in erected state described in Auxiliary support.

Pushchair as described above, the hinged elastic joint include：

Outer connectors, lower end are connected with the front lower small end, and its inside offers the be laterally arranged One indent tooth socket；

Medial connection, the upper end is connected with the preceding upper connecting rod lower end, and is hinged with the outer connectors, and Its inside offers the second indent tooth socket being laterally arranged, and is equipped with around its horizontal direction in the second indent tooth socket multiple oblique Slope protrusion；

Clamping lock gear is sheathed between the outer connectors and the medial connection, and with first indent Tooth socket and the second indent tooth socket match, to outer connectors described in clamping lock and the medial connection；

Pushing tow unlock piece is sheathed in the second indent tooth socket, and is adapted with the slope protrusion, and is located at institute It states between the second indent tooth socket and the clamping lock gear, is moved into the first indent tooth socket to clamping lock gear described in pushing tow It is dynamic, until the clamping lock gear is detached from the second indent tooth socket, so as to unlock the outer connectors and inside connection Part；

Dynamic clamping head and quiet clamping head is sheathed on the clamping lock gear, and positioned at concave tooth in the clamping lock gear and described first Between slot, and when the pushing tow unlock piece loses to the clamping lock gear thrusting action, the dynamic clamping head and quiet clamping head is to elasticity The clamping lock gear is resetted to be moved between the first indent tooth socket and the second indent tooth socket.

Pushchair as described above, the hinged elastic joint further include be set on the outside of the outer connectors and To the decorative element decorated.

Pushchair as described above, the pushing tow unlock piece along its week side direction be equipped with it is multiple can with it is described tiltedly The contact projection that slope protrusion is in contact, and open be additionally provided with clamping recess thereon.

Pushchair as described above, the joint unlocking structure include：

Elongated hole is opened in the preceding upper connecting rod top, and extends transversely through the preceding upper connecting rod；

Component is pulled up, is sheathed on the preceding upper connecting rod upper outside, and can be above and below the preceding upper connecting rod length direction Sliding, and offer thereon extend transversely through extend transversely through hole；

Connecting bolt sequentially passes through and is connected to the elongated hole and described extends transversely through on hole；

Rope is connected, is sheathed in the preceding upper connecting rod, and its lower end is stretched out the preceding upper connecting rod lower end and is connected in In the clamping recess, upper end is sheathed on the connecting bolt, when along the preceding upper connecting rod length direction pull-up pull-up When component, the connecting bolt is driven by the pull-up component and is moved to described extend transversely through from the hole lower end that extends transversely through Hole upper end, to drive the connection cable tie move the pushing tow unlock piece from the low side of slope protrusion turn to it is described tiltedly Slope protrusion it is high-end, and then will be in the clamping lock gear pushing tow to the first indent tooth socket.

Pushchair as described above, the Pushchair further include one to middle loosing and tightening structure, it is described to Middle loosing and tightening structure be set to the two preceding upper connecting rods between, and to loosen the two preceding upper connecting rods so that the two preceding upper connecting rods to Middle jackknife action, or to support expansion and the two preceding upper connecting rods of locking.

Pushchair as described above, it is described to middle loosing and tightening structure include between being articulated with the two preceding upper connecting rods One transverse connecting rod and the second transverse connecting rod, first transverse link inner end are hinged with second transverse link inner end And on the upside of second transverse link；

The first of downward indent is offered on the upside of first transverse link inner end to lower groove, and is opened up on the downside of its inner end There is the upward groove of upward indent, downwardly convex downward pillar is equipped in the middle part of the upward groove, and its inside is equipped with towards institute The first protrusion of downward pillar direction protrusion is stated, the quantity of first protrusion is at least 2, and between adjacent first protrusion It offers up and down through to be connected to the described first through hole up and down to lower groove and the upward groove；

The second of downward indent is offered on the upside of second transverse link inner end to lower groove, described second to lower groove Middle part is equipped with and raises up and the upward pillar coaxial with the downward pillar, and its inside is equipped with towards the upward pillar direction Second protrusion of protrusion, the quantity of second protrusion are equal with first protrusion；

It is described to further include to middle loosing and tightening structure：

Elastic yoke frame is sheathed on the upward pillar；

Clamping lock locating piece is sheathed between the downward pillar and the upward pillar, is located at by the upward groove Accommodation space is formed by lower groove, and above the elastic yoke frame, and offering thereon can be with described second First protrusion and second protrusion are adapted fastens first transverse link and second transverse link with clamping lock Clamping lock notch；

Unblock button is sheathed on described first into lower groove, and its lower end extends through the through hole up and down and is located at In the upward groove, is pushed away the clamping lock locating piece with following and forced the elastic yoke frame retracted downward so that the card lock Position part is moved downward to described second into lower groove, and then the clamping lock notch is detached from first protrusion, to loosen State the first transverse link and second transverse link.

Pushchair as described above, the unblock button lower end, which is equipped with, to extend outwardly and quantity upper and lower is passed through with described The equal extension limiting section of the number of holes, the extension limiting section radial dimension are more than the radial dimension of the through hole up and down.

Pushchair as described above, the Pushchair further include being set to the preceding lower link and the branch It supports on the inside of articulated joints and to support the Seat support holder of baby seat.

Compared with prior art, above-mentioned application has the following advantages：

1, the application Pushchair is matched with the hinged elastic joint with reality by the joint unlocking structure Existing clamping lock, which is fixed, is unfolded the preceding lower link and the preceding upper connecting rod, or unlock receives and folds the preceding lower link and the preceding upper connecting rod Function, then pass through the bottom hinge assembly and the support articulated linkage component and the inclination again and intersect hinge Connected components realize that linkage receipts are folded or the preceding upper connecting rod and the preceding lower link and wheel group frame is unfolded in linkage, thus can not only Poststack is received in vehicle and achievees the purpose that receipts are folded regular, and can be reached by the support articulated linkage component when vehicle is unfolded The purpose of vehicle rigidity is further increased, and then embodies the application easy to carry, harvesting of going out and does not take up space, and upon deployment Protrusion effect with high degree of rigidity；

2, the application Pushchair is when organizing work, by being propped up described in the Auxiliary support articulation piece Auxiliary support Articulated joints is supportted, so that the active force suffered by the support articulated joints is made indirectly by the Auxiliary support articulation piece For the wheel group frame, to can further improve the vehicle rigidity of the application Pushchair, and pass through the branch Support articulated joints and the Auxiliary support articulation piece and the connection slide cartridge can be used to pull the preceding lower link when matching Around its be hinged lower end rotation receive downwards it is folded be close on the upside of the wheel group frame, or can be used to support the preceding lower link around its hinge Lower end rotation is connect to be unfolded upwards so that the preceding lower link is in state of organizing work, and then embodies the application foldable baby Supporting articulated linkage component to have described in vehicle, delicate structure, start be smooth, the outstanding features such as simple to operate.

【Description of the drawings】

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 accompanying drawings in the following description is only some embodiments of the present application, for For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings Attached drawing.

Fig. 1 is the stereogram of the application Pushchair, shows that the application Pushchair is in shape of organizing work State.

Fig. 2 is the stereogram of the application Pushchair, shows that the application Pushchair is in during expansion A location status.

Fig. 3 is the stereogram of the application Pushchair, shows that the application Pushchair is in and folds completely State.

Fig. 4 is the sectional view in the application Pushchair, shows the installation condition of the joint unlocking structure.

Fig. 5 is the exploded view in hinged elastic joint described in the application Pushchair.

Fig. 6 is the partial enlarged view I of Fig. 5.

Fig. 7 is the exploded view in hinged elastic joint described in the application Pushchair.

Fig. 8 is the stereogram of pushing tow unlock piece described in the application Pushchair.

Fig. 9 is described in the application Pushchair to the exploded view of middle loosing and tightening structure.

Figure 10 is the disconnected parallax stereogram of the first transverse link described in the application Pushchair.

Figure 11 is the stereogram of unblock button described in the application Pushchair.

【Specific implementation mode】

The application is described in further detail below by specific implementation mode combination attached drawing.

As shown in figs. 1-11, Pushchair, including two groups of wheel group framves 1, two lower link 2, two of supporting the front are supported the front upper company 3, two, bar is hinged 4, two, elastic joint joint unlocking structure 5, one to 6, one groups of bottom cross-articulation groups of middle loosing and tightening structure 7, two groups of part, 8, one groups of support articulated linkage component inclination cross-articulation component 9 and Seat support holder 10.

Specifically, 2 lower end of preceding lower link and 1 front end of wheel group frame are hinged and when organizing work, in Rear-inclined state, and the hinged elastic joint 4 is connected between the upper end and 3 lower end of preceding upper connecting rod, then when the hinge It connects elastic joint 4 to be in when loosening state, the preceding upper connecting rod 3 is rotated by the hinged elastic joint 4 and receives folded paste It is bordering on the preceding lower link 2.The joint unlocking structure 5 is set in the preceding upper connecting rod 3 and is hinged 4 phase of elastic joint with described Connection, and to the hinged elastic joint 4 of loosening.7 cross-articulation of bottom cross-articulation component is in two wheels Between group frame 1, and driving the two wheel group framves 1 to middle folding, or to support the two wheel group framves 1 of expansion.Institute Support articulated linkage component 8 is stated to be articulated between the wheel group frame 1 and the preceding lower link 2, and it include bloster hinge in succession Fitting 81, Auxiliary support articulation piece 82 and connection slide cartridge 83.The connection slide cartridge 83 is sheathed on the wheel group frame 1, and It can reciprocatingly slide along 1 longitudinal direction of wheel group frame.The support articulated joints 81 is articulated with the wheel group frame 1 and institute It is in erected state before stating between lower link 2, and when it is organized work.The Auxiliary support articulation piece 82 is articulated with the bloster hinge Between connecting connector 81 and the connection slide cartridge 83, and when it is organized work, in the state of turning forward.The support articulated joints 81 and the Auxiliary support articulation piece 82 and the connection slide cartridge 83 can be used to pull the preceding lower link 2 around its hinge when matching Connect lower end rotation receive downwards it is folded be close to 1 upside of the wheel group frame, or can be used to support the preceding lower link 2 under it is hinged End rotation is unfolded upwards so that the preceding lower link 2 is in state of organizing work.9 cross-articulation of inclination cross-articulation component Between the support articulated joints 81 and the wheel group frame 1, and to be supported at articulated joints 81 described in Auxiliary support In erected state.The bottom cross-articulation component 7 and the inclination cross-articulation component 9 are by two connecting rod cross-articulations It is formed to realize expansion or receive azido functional.

The application Pushchair is matched with the hinged elastic joint 4 with reality by the joint unlocking structure 5 Existing clamping lock, which is fixed, is unfolded the preceding lower link 2 and the preceding upper connecting rod 3, or unlock receive fold the preceding lower link 2 and it is described before on The function of connecting rod 3 then by the bottom hinge assembly 7 and the support articulated linkage component 8 and described is inclined again Skewed crossing hinge assembly 9 realizes that linkage receives folded or linkage and the preceding upper connecting rod 3 and the preceding lower link 2 and wheel group frame is unfolded 1, achieve the purpose that receipts are folded regular to which poststack can not only be received in vehicle, and can be hinged by the support when vehicle is unfolded Link assembly 8 achievees the purpose that further increase vehicle rigidity, and then embodies the application and go out easy to carry, harvesting not duty Between, and the protrusion effect with high degree of rigidity upon deployment.

The hinged elastic joint 4 includes outer connectors 41, medial connection 42, clamping lock gear 43, pushing tow unlock piece 44, dynamic clamping head and quiet clamping head 45 and decorative element 46.

41 lower end of the outer connectors is connected with 2 upper end of preceding lower link, and its inside offers lateral setting The first indent tooth socket 411.42 upper end of the medial connection is connected with 3 lower end of preceding upper connecting rod, and with the outside Connector 41 is hinged, and the second indent tooth socket 421 being laterally arranged is offered on the inside of it, in the second indent tooth socket 421 It is equipped with multiple slope protrusions 4211 around its horizontal direction.The clamping lock gear 43 be sheathed on the outer connectors 41 with it is described It between medial connection 42, and is matched with the first indent tooth socket 411 and the second indent tooth socket 421, to clamping lock The outer connectors 41 and the medial connection 42.The pushing tow unlock piece 44 is sheathed on the second indent tooth socket 421 It is interior, and be adapted with the slope protrusion 4211, and between the second indent tooth socket 421 and the clamping lock gear 43, Moved into the first indent tooth socket 411 to clamping lock gear 43 described in pushing tow, until the clamping lock gear 43 be detached from it is described Second indent tooth socket 421, so as to unlock the outer connectors 41 and the medial connection 42.45 sets of the dynamic clamping head and quiet clamping head On the clamping lock gear 43, and between the clamping lock gear 43 and the first indent tooth socket 411, and work as the top When pushing away unlock piece 44 and losing to 43 thrusting action of clamping lock gear, the dynamic clamping head and quiet clamping head 45 is to clamping lock described in elastic reset Gear 43 is moved between the first indent tooth socket 411 and the second indent tooth socket 421.

The decorative element 46 is set to 41 outside of the outer connectors and to decorate.The decorative element 46 can be to dodge Bright LED light, naturally it is also possible to be other with decorative decorating objects, its object is to improve the aesthetic appearance of the application.

The pushing tow unlock piece 44 is equipped with along its week side direction and multiple can be connect with what the slope protrusion 4211 was in contact Protrusion 441 is touched, and opens be additionally provided with clamping recess 442 thereon.

The joint unlocking structure 5 includes elongated hole, pull-up component 51, connecting bolt and connection rope 52.

The elongated hole is opened in 3 top of preceding upper connecting rod, and extends transversely through the preceding upper connecting rod 3.The pull-up portion Part 51 is sheathed on 3 upper outside of preceding upper connecting rod, and can be slided up and down along 3 length direction of preceding upper connecting rod, and opens thereon Hole is extended transversely through equipped with what is extended transversely through.The connecting bolt, which sequentially passes through, to be connected to the elongated hole 51 and described extends transversely through Kong Shang.The connection rope 52 is sheathed in the preceding upper connecting rod 3, and its lower end is stretched out 3 lower end of preceding upper connecting rod and is clamped In in the clamping recess 442, upper end is sheathed on the connecting bolt, when along 3 length direction of preceding upper connecting rod pull-up institute When stating pull-up component 51, the connecting bolt is driven by the pull-up component 51 and is moved to institute from the hole lower end that extends transversely through It states and extends transversely through hole upper end, to drive the connection rope 52 to drive the pushing tow unlock piece 44 from the slope protrusion 4211 Low side turn to the high-end of the slope protrusion 4211, and then by 43 pushing tow of clamping lock gear to the first indent tooth socket In 411.

It is described to middle loosing and tightening structure 6 be set to the two preceding upper connecting rods 3 between, and to loosen the two preceding upper connecting rods 3 with Make the two preceding upper connecting rods 3 to middle jackknife action, or to support expansion and the two preceding upper connecting rods 3 of locking.It is described to middle pine Locking structure 6 includes being articulated with the first transverse connecting rod 61 and the second transverse connecting rod 62 between the two preceding upper connecting rods 3, and described the One transverse link, 61 inner end is hinged with 62 inner end of the second transverse link and positioned at second transverse link, 62 upside.

The first of downward indent is offered on the upside of first transverse link, 61 inner end to lower groove 611, and under its inner end Side offers the upward groove 612 of upward indent, and 612 middle part of the upward groove is equipped with downwardly convex downward pillar 613, and Its inside is equipped with the first protrusion 614 towards 613 direction of downward pillar protrusion, and the quantity of first protrusion 614 is at least 2 It is a, and offered between adjacent first protrusion 614 up and down through to be connected to described first to lower groove 611 and described concave up Through hole 615 up and down of slot 612.

The second of downward indent is offered on the upside of second transverse link, 62 inner end to lower groove 621, described second to The middle part of lower groove 621, which is equipped with, to raise up and the upward pillar 622 coaxial with the downward pillar 613, and its inside is equipped with court Second protrusion 623 of 622 direction of the upward pillar protrusion, the quantity of second protrusion 623 and the described first raised 614 phases Deng.

It is described to middle loosing and tightening structure 6 further include elastic yoke frame 63, clamping lock locating piece 64 and unblock button 65.

The elasticity yoke frame 63 is sheathed on the upward pillar 622.The clamping lock locating piece 64 be sheathed on it is described to Between lower pillar 613 and the upward pillar 622, it is located at from the upward groove 612 and described second to 621 shapes of lower groove At accommodation space, and positioned at 63 top of the elastic yoke frame, and offering thereon can be with first protrusion 614 and described Second protrusion 623 is adapted the clamping lock notch that first transverse link 61 and second transverse link 62 are fastened with clamping lock 641.The unblock button 65 is sheathed on described first into lower groove 611, and its lower end extends through the through hole 615 up and down simultaneously In the upward groove 612, with it is following push away the clamping lock locating piece 64 force elastic 63 retracted downward of yoke frame with The clamping lock locating piece 64 is set to be moved downward to described second into lower groove 621, then the clamping lock notch 641 is detached from described First protrusion 614, to first transverse link 61 and second transverse link 62 of loosening.

65 lower end of the unblock button is equipped with the extension to extend outwardly and quantity is equal with 615 quantity of through hole up and down Limiting section 651,651 radial dimension of extension limiting section are more than the radial dimension of the through hole 615 up and down.

The Seat support holder 10 is set on the inside of the preceding lower link 2 and the support articulated joints 81, and to Support baby seat.

Presently filed embodiment is explained in detail in summary, but the application is not limited to the above embodiment. Even if it is to the application, various changes can be made, then still falls within the protection domain in the application.

Claims

1. Pushchair, including two groups of wheel group framves (1), two support the front lower link (2), two support the front upper connecting rod (3) and two A hinged elastic joint (4), preceding lower link (2) lower end is hinged and is organizing work with wheel group frame (1) front end When, the hinged elastic joint (4) is connected in the state of tilting backwards, and between the upper end and the preceding upper connecting rod (3) lower end, after And when the hinged elastic joint (4) is in and loosens state, the preceding upper connecting rod (3) passes through the hinged elastic joint (4) It rotates and receives to fold and be close to the preceding lower link (2), it is characterised in that：The Pushchair further includes two joints Unlocking structure (5), one group of bottom cross-articulation component (7), two groups of support articulated linkage components (8) and one group of inclination intersect hinge Connected components (9)；

The joint unlocking structure (5) is set on the preceding upper connecting rod (3) and is connected with the hinged elastic joint (4), and To the hinged elastic joint (4) of loosening；

Bottom cross-articulation component (7) cross-articulation is between the two wheel group framves (1), and to drive described in two The two wheel group framves (1) are unfolded to middle folding, or to support in wheel group frame (1)；

The support articulated linkage component (8) is articulated between the wheel group frame (1) and the preceding lower link (2), and it is wrapped Support articulated joints (81), Auxiliary support articulation piece (82) and connection slide cartridge (83), the connection slide cartridge (83) is included to be arranged In on the wheel group frame (1), and can reciprocatingly slide along wheel group frame (1) longitudinal direction；The support articulated joints (81) it is articulated between the wheel group frame (1) and the preceding lower link (2), and when it is organized work, is in erected state；It is described auxiliary Support articulation piece (82) is helped to be articulated between the support articulated joints (81) and the connection slide cartridge (83), and it is organized work When, in the state of turning forward；The support articulated joints (81) and the Auxiliary support articulation piece (82) and the connection are slided Cylinder (83) can be used to pull the preceding lower link (2) to be hinged around it when matching rotation downward receipts in lower end are folded to be close to the wheel On the upside of group frame (1), or it can be used to support the preceding lower link (2) to be hinged lower end rotation around it and be unfolded upwards so that the front lower company Bar (2) is in state of organizing work；

Inclination cross-articulation component (9) cross-articulation is in the support articulated joints (81) and the wheel group frame (1) Between, and to support articulated joints (81) to be in erected state described in Auxiliary support.

2. Pushchair according to claim 1, it is characterised in that：The hinged elastic joint (4) includes：

Outer connectors (41), lower end be connected with preceding lower link (2) upper end, and its inside offers and is laterally arranged First indent tooth socket (411)；

Medial connection (42), the upper end are connected with preceding upper connecting rod (3) lower end, and with the outer connectors (41) phase It is hinged, and its inside offers the second indent tooth socket (421) being laterally arranged, the second indent tooth socket (421) is interior around its cross It is raised (4211) it to be equipped with multiple slopes to direction；

Clamping lock gear (43) is sheathed between the outer connectors (41) and the medial connection (42), and with it is described First indent tooth socket (411) and the second indent tooth socket (421) match, to outer connectors described in clamping lock (41) and institute State medial connection (42)；

Pushing tow unlock piece (44) is sheathed in the second indent tooth socket (421), and is mutually fitted with the slope raised (4211) Match, and between the second indent tooth socket (421) and the clamping lock gear (43), to clamping lock gear (43) described in pushing tow It is moved into the first indent tooth socket (411), until the clamping lock gear (43) is detached from the second indent tooth socket (421), So as to unlock the outer connectors (41) and the medial connection (42)；

Dynamic clamping head and quiet clamping head (45) is sheathed on the clamping lock gear (43), and positioned at the clamping lock gear (43) and described the Between one indent tooth socket (411), and when the pushing tow unlock piece (44) loses to clamping lock gear (43) thrusting action, institute State dynamic clamping head and quiet clamping head (45) to clamping lock gear (43) described in elastic reset be moved to the first indent tooth socket (411) with it is described Between second indent tooth socket (421).

3. Pushchair according to claim 2, it is characterised in that：The hinged elastic joint (4) further includes setting Decorative element (46) on the outside of the outer connectors (41) and to decorate.

4. Pushchair according to claim 2, it is characterised in that：The pushing tow unlock piece (44) was along its week side To being equipped with multiple contact projections (441) that can be in contact with the slope raised (4211), and open that be additionally provided with clamping recessed thereon Position (442).

5. Pushchair according to claim 4, it is characterised in that：The joint unlocking structure (5) includes：

Elongated hole is opened in preceding upper connecting rod (3) top, and extends transversely through the preceding upper connecting rod (3)；

Component (51) is pulled up, is sheathed on preceding upper connecting rod (3) upper outside, and can be along preceding upper connecting rod (3) the length side To sliding up and down, and offer thereon extend transversely through extend transversely through hole；

Connecting bolt sequentially passes through and is connected to the elongated hole (51) and described extends transversely through on hole；

Rope (52) is connected, is sheathed in the preceding upper connecting rod (3), and preceding upper connecting rod (3) lower end is stretched out simultaneously in its lower end It is connected in the clamping recess (442), upper end is sheathed on the connecting bolt, when along preceding upper connecting rod (3) the length side When pulling up pull-up component (51), the connecting bolt is driven by the pull-up component (51) and extends transversely through hole from described Lower end be moved to it is described extend transversely through hole upper end, to drive connection rope (52) drive pushing tow unlock piece (44) from The low side on the slope raised (4211) turns to the high-end of the slope raised (4211), and then by the clamping lock gear (43) In pushing tow to the first indent tooth socket (411).

6. Pushchair according to claim 1, it is characterised in that：The Pushchair further include one to Middle loosing and tightening structure (6), it is described to middle loosing and tightening structure (6) be set to the two preceding upper connecting rods (3) between, and to loosen two it is described before Upper connecting rod (3) so that the two preceding upper connecting rods (3) to middle jackknife action, or to support expansion and locking the two preceding upper connecting rods (3)。

7. Pushchair according to claim 6, it is characterised in that：Described to middle loosing and tightening structure (6) includes hinged The first transverse connecting rod (61) between the two preceding upper connecting rods (3) and the second transverse connecting rod (62), described first laterally connects Bar (61) inner end is hinged with the second transverse link (62) inner end and on the upside of second transverse link (62)；

The first of downward indent is offered on the upside of first transverse link (61) inner end to lower groove (611), and under its inner end Side offers the upward groove (612) of upward indent, and downwardly convex downward pillar is equipped in the middle part of the upward groove (612) (613), and its inside is equipped with towards first raised (614) of downward pillar (613) the direction protrusion, first protrusion (614) quantity is at least 2, and offered between adjacent described first raised (614) up and down through be connected to described first to The through hole up and down (615) of lower groove (611) and the upward groove (612)；

The second of downward indent is offered on the upside of second transverse link (62) inner end to lower groove (621), described second to It is equipped in the middle part of lower groove (621) and raises up and the upward pillar (622) coaxial with the downward pillar (613), and on the inside of it Equipped with towards second raised (623) of upward pillar (622) the direction protrusion, the quantity of described second raised (623) with it is described First raised (614) are equal；

It is described to further include to middle loosing and tightening structure (6)：

Elastic yoke frame (63) is sheathed on the upward pillar (622)；

Clamping lock locating piece (64) is sheathed between the downward pillar (613) and the upward pillar (622), is located at by institute It states upward groove (612) and described second and is formed by accommodation space to lower groove (621), and positioned at the elastic yoke frame (63) top, and offer thereon and can be adapted and be fastened with clamping lock with described first raised (614) and second raised (623) The clamping lock notch (641) of first transverse link (61) and second transverse link (62)；

Unblock button (65) is sheathed on described first into lower groove (611), and its lower end extends through the through hole up and down (615) and in the upward groove (612) it, is pushed away the clamping lock locating piece (64) with following and is forced the elastic yoke frame (63) retracted downward is then described so that the clamping lock locating piece (64) is moved downward to described second in lower groove (621) Clamping lock notch (641) is detached from described first raised (614), to loosen first transverse link (61) and described second laterally Connecting rod (62).

8. Pushchair according to claim 7, it is characterised in that：Unblock button (65) lower end is equipped with outside Extend and extension limiting section (651) that quantity is equal with upper and lower through hole (615) quantity, the extension limiting section (651) Radial dimension is more than the radial dimension of the through hole (615) up and down.

9. Pushchair according to claim 1, it is characterised in that：The Pushchair further includes being set to institute It states on the inside of preceding lower link (2) and the support articulated joints (81) and to support the Seat support holder of baby seat (10)。