CN207328697U - A kind of foldable stroller - Google Patents

Abstract

The utility model discloses a kind of foldable stroller, including handlebar, front supporting member matched with handlebar, the crossbeam being connected with front supporting member, front-wheel, the foot piece arranged on front-wheel both sides, seat cushion and two rear supports being connected respectively with crossbeam, be connected to a trailing wheel in the every rear support；The first foldable structure is further included, for driving the rear support to be positioned after being overturn to front-wheel direction；Second foldable structure, for driving the front supporting member and at least part crossbeam to be positioned after being overturn at the same time to rear support direction.Rear support can turn down forward in the utility model, and front supporting member can turn down backward, and back and front supporting part coordinates with folding crossbeam respectively, fold the volume very little of aftercarriage, and then the space hold of the reduction car body of high degree, easy to carry and store.

Description

A kind of foldable stroller

Technical field

The utility model belongs to perambulator technical field, more particularly, to a kind of foldable stroller.

Background technology

Current market sales of children are various with car type class, and Various Functions, such as Chinese patent CN205282814U Disclose《A kind of go-cart》, it includes girder, seat, handlebar, two front-wheels and two trailing wheels, stable structure, during toddler It is not easy to fall down.But the go-cart of this kind of structure can not carry out receiving folded, the not only space for occupying family of high degree, and It is also more inconvenient to be carried during trip.

Utility model content

The utility model is in order to overcome the deficiencies of the prior art and provide a kind of foldable placement, and floor space after folding Small foldable stroller.

To achieve these goals, the utility model uses following technical scheme：A kind of foldable stroller, including handlebar, Front supporting member matched with handlebar, the crossbeam being connected with front supporting member, front-wheel, the foot piece arranged on front-wheel both sides, seat And two rear supports being connected respectively with crossbeam, a trailing wheel is connected in the every rear support；Further include One foldable structure, for driving the rear support to be positioned after being overturn to front-wheel direction；Second foldable structure, for driving The front supporting member and at least part crossbeam are positioned after being overturn at the same time to rear support direction.Propped up after the utility model two Support member can respectively forwardly take turns direction upset, can be separately folded to the left and right sides of crossbeam, compare for traditional receipts fold mode, The volume of car body obtains the reduction of high degree, goes out to carry and storage is relatively simple；Meanwhile front supporting member can be to rear support Part direction is overturn, and is folded to the position substantially parallel with crossbeam, so as to receive the car body of poststack, is obtained in length and wide cut Greatly reduce, the space occupied is small when carrying or storing.

Further, first foldable structure is arranged in the rear support or arranged on the rear support and the horizontal stroke The junction of beam.

Further, second fold mechanism is arranged on the company on crossbeam or arranged on the front supporting member and the crossbeam Meet place.

Or further, first foldable structure is included in the lower achievable actuator of activity back and forth of external force effect, determines Position part, the first location division and the second location division on crossbeam or in rear support；The rear support is in expansion During position, the locating piece is engaged with the first location division, when the rear support is in folding position, the locating piece and Two location divisions are engaged；By the cooperation between locating piece and the first location division and the second location division, realize to rear support Effectively positioning, prevents rear support from being stirred in folding or expanded position；Moving back and forth for actuator can be achieved for fixed Mated condition freely control between position part and the first location division and the second location division, folding for rear support or is unfolded to grasp Make more flexible.

Or it is further, second foldable structure be included in external force effect it is lower can be achieved driving part movable back and forth, Positioning element and the first limiting section and the second limiting section on crossbeam or on front supporting member, the front supporting member are in During expanded position, the positioning element is engaged with the first limiting section, when the front supporting member is in folding position, the positioning Component is engaged with the second limiting section；Pass through the cooperation between positioning element and the first limiting section and the second limiting section, realization pair Effective positioning of front supporting member, prevents front supporting member from being stirred in folding or expanded position；Driving part moves back and forth It can be achieved freely to control for mated condition between positioning element and the first limiting section and the second limiting section, for front supporting member Folding or expansion operation it is more flexible.

Further, first foldable structure further includes the (the first back-moving spring for acting on the actuator；Actuator In mobile process, (the first back-moving spring can deform upon, so as to realize oneself of actuator when the external force on actuator disappears Dynamic to reset, operation is more laborsaving；Simultaneously as the setting of (the first back-moving spring, gives actuator one thrust all the time so that fixed Coordinate closely between position part and the first location division and the second location division, body construction is more stable.

Preferably, the actuator is realized by a connecting shaft and coordinated with the activity of the rear support or the crossbeam, One end of the (the first back-moving spring is connected with the connecting shaft；During actuator moves, connecting shaft can reset bullet to first Spring is extruded or stretched so that (the first back-moving spring deforms upon, so as to realize driving when the external force on actuator disappears Part automatically resets, and operation is more laborsaving.

Or it is further, second foldable structure further includes the second back-moving spring for acting on the driving part；Drive During dynamic component moves, second back-moving spring can deform upon, and be driven so that external force on the driving part is realized when disappearing Dynamic component automatically resets, and operation is more laborsaving；Simultaneously as the setting of second back-moving spring, gives driving part one all the time Thrust so that coordinate closely between positioning element and the first limiting section and the second limiting section, body construction is more stable.

Preferably, removable mating connection is carried out by a location structure between the front-wheel and the foot piece, it is described Rotation stop coordinates between location structure and front-wheel；To be detachably connected between foot piece and front-wheel, when children for learning is walked, without Foot piece is assembled, perambulator is the function of can be achieved to learn to walk；After children grow to the age that can be ridden, to foot piece into luggage Match somebody with somebody so that perambulator becomes bicycle, rides for children；So as to pass through the simple-mounting-dismounting of foot piece, you can realize learning to walk for perambulator With two kinds of functions of riding, effectively avoid one family from purchasing two perambulators, increase economic efficiency, strengthen practical performance；Positioning knot Rotation stop coordinates between structure and front-wheel so that can be achieved to rotate synchronously between location structure and front-wheel, when foot piece acts Driving front-wheel is rotated.

Further, the location structure includes bent axle, the shrapnel on bent axle and the press section on shrapnel, institute State bent axle and be equipped with the through hole being pierced by for press section；When bent axle is connected with front-wheel, press section can be engaged to song with front-wheel Axis is effectively positioned, and prevents bent axle from departing from front-wheel；And due to the setting of shrapnel so that press section can be realized flexible dynamic Make, easy to be dismantled to bent axle, dismounting is easy；Cooperation between press section and front-wheel at the same time can further enhance bent axle with before Rotation stop effect between wheel, both parts are not easy to skid, and synchronous rotation rate is high.

In conclusion the utility model has the following advantages：Rear support can be turned down to front-wheel direction to crossbeam both sides, preceding Supporting item can be turned down to trailing wheel direction, and back and front supporting part coordinates with folding crossbeam respectively, fold the volume very little of aftercarriage, into And the space hold of the reduction car body of high degree, it is easy to carry and store.

Brief description of the drawings

Fig. 1 is the structure diagram one of the utility model embodiment one.

Fig. 2 is the structure diagram two of the utility model embodiment one.

Fig. 3 is the decomposition diagram that the front-wheel of the utility model embodiment one and foot piece are coordinated by location structure.

Fig. 4 is the decomposition diagram of the rear support with the first foldable structure of the utility model embodiment one.

Fig. 5 is the front supporting member of the utility model embodiment one and the cooperation schematic diagram of the second foldable structure.

Fig. 6 is rear support and the decomposition diagram of the first foldable structure in the utility model embodiment two and four.

Fig. 7 is the cooperation schematic diagram of front supporting member and the second foldable structure in the utility model embodiment three and four.

Embodiment

It is real below in conjunction with the utility model in order to make those skilled in the art be better understood from the utility model The attached drawing in example is applied, clear, complete description is carried out to the technical scheme in the embodiment of the utility model.

Embodiment 1

As shown in Figs. 1-5, a kind of foldable stroller, including handlebar 1, crossbeam 2, front-wheel 3, front supporting member 7, two trailing wheels 4, two Root rear support 8, two foot pieces 52, seat 6, the first foldable structure and the second foldable structure, the seat 6 are fixedly arranged on crossbeam On 2, the handlebar is engaged with front supporting member 7, both can be to be fixedly connected；Wherein one end of the front supporting member 7 and crossbeam It is connected, two rear supports 8 are connected with the wherein other end of crossbeam；The front-wheel is arranged on 7 lower part of front supporting member, A trailing wheel 4 is connected in the every rear support；Further, the rear support lower part is arranged on a connector sleeve 86, A pillar 87 is respectively equipped with the left and right sides of the connector sleeve, the trailing wheel passes through screw or other connectors and the pillar phase Even, the connection of trailing wheel and rear support is realized；

As shown in figure 3, first foldable structure is arranged on the rear support 8 and the junction of the crossbeam 2, specifically , the crossbeam 2 includes front beam 23, rear cross beam 21 and the two stands 22 for being respectively arranged on the rear cross beam rear end, first folding Stack structure is arranged on the stent 22 and the junction of rear support 8, and the first foldable structure is used to drive the rear support 8 to front-wheel Positioned after the upset of 3 directions, realize that rear support 8 and the folding of crossbeam 2 coordinate, reduce the volume of car body.

It is connected between 8 upper end of rear support and the crossbeam 2 by head rod 107, head rod 107 For screw or bolt；The cross section of the two stands 22 is U-shaped structure, is inserted into easy to rear support 8, and 8 upper end of rear support is set There is a circular hole 81, the stent 22 is equipped with a connecting hole 221, and after the stent 22 is inserted into 8 upper end of rear support, described first connects Extension bar 107 may pass through stent 22 and circular hole 81, and rear support 8 and stent 22 are movably connected；Further, after described 8 upper end of supporting item is arranged on a section 85, passes through the setting of the section 85 so that rear support 8 is when being folded, rear support 8 upper ends are not in situation inconsistent with rack inner wall to overturn, and ensure that rear support 8 is normally folded；It is described The upper end of actuator 101 is also symmetrically equipped with two U-lags 108, which can coordinate grafting with head rod 107.

Further, first foldable structure is fixed including actuator 101, locating piece 102, the first location division 103, second Position portion 104, the actuator 101 are movably set in movable sleeve in the rear support 8 for one, it can edge under external force Rear support 8 is movable back and forth；It is attached between the actuator 101 and rear support 8 by connecting shaft 106, the connecting shaft 106 be bolt or screw；The rear support 8 is equipped with the straight slot 82 of a bar shaped, and the connecting shaft 106 can be penetrated to the straight slot In 82 so that actuator 101 can move up and down on the length direction of straight slot 82 in rear support 8, realize actuator Activity with the rear support coordinates；First location division, 103 and second location division 104 is the open slot of U-shaped, and first Location division 103 is arranged on the lower position of the stent 22, and the second location division 104 is arranged on the side locations of the stent 22；It is described Locating piece 102 is arranged on 101 outer surface of actuator, its shape and the shape of the first location division 103 and the second location division 104 It is identical；When the rear support 8 is in the deployed, the locating piece 102 is engaged with the first location division 103, is propped up after described When support member 8 is in folding position, the locating piece 102 is engaged with the second location division 104, and the position of rear support 8 is carried out Effectively positioning.

In order to realize automatically reseting for actuator, a (the first back-moving spring for acting on the actuator 101 is also provided with 105；Specifically, (the first back-moving spring 105 is placed in the rear support 8, one end and the lower part of the rear support 8 offset, Upper end is connected or offsets with connecting shaft 106, so that when actuator 101 is moved down along rear support 8, (the first back-moving spring 105 It will be compressed, give actuator 101 upward restoring force；In other embodiment, the (the first back-moving spring 105 also can one end It is connected with connecting shaft 106, the other end and head rod 107；Or one end is connected with connecting shaft 106, the other end and crossbeam phase Support.

When rear support 8 is in unfolded state, the locating piece 102 is inserted in the first location division 103, on stent 22 Head rod 107 be caught in two U-lags 108, by two-point locating, rear support 8 is effectively positioned at unfolded state On, front and rear upset will not occur for rear support 8；When needing to fold rear support 8, actuator 101 is pulled down so that the first connection Bar 107 departs from U-lag 108, and locating piece 102 departs from the first location division 103, and rear support 8 can 22 turns of opposite brackets at this time It is dynamic, rear support 8 is rotated to front-wheel direction afterwards, when rear support 8 is substantially parallel in crossbeam, actuator 101 is unclamped, makes It is resetted automatically under the action of (the first back-moving spring 105 so that and connecting shaft 106 is caught in two U-lags 108 again, Locating piece 102 is inserted into the second location division 104 at the same time, and by two-point locating, rear support 8 is effectively positioned at folded state On, front and rear upset will not occur for rear support 8；In other embodiment, the actuator is also provided with being to be movably set in institute State on stent 22, first location division 103, the second location division 104 are arranged in the rear support, are existed by the actuator Moving up and down on stent 21, realizes its cooperation between the first location division 103 in rear support, the second location division 104, Folding operation is carried out to rear support；Concrete structure and principle are identical with aforesaid way, and details are not described herein.

As shown in figure 4, the front supporting member 7 includes support body 72, the front fork arranged on 72 lower end of support body 71 and connecting seat 73, the connecting seat 73 be set in outside the support body 72；The handlebar 1 is arranged on the support body 72 upper end, the front-wheel 3 are placed in the front fork 71, and front fork 71 is equipped with a through hole being pierced by for the wheel shaft 31, this is logical The lower part in hole is set for opening, and wheel shaft 31 can be penetrated to through hole by opening, be rotatable between the wheel shaft 31 and through hole Coordinate, can opposite front supporting member rolling so as to fulfill front-wheel；Wheel shaft 31 in the opening of through hole by dropping out in order to prevent, we are preceding The left and right sides of fork 71 is respectively provided with a securing plate 13, and securing plate 13 is equipped with the circular open being pierced by for wheel shaft 31, reinforces The upper end of plate 13 is fixedly connected with front fork 71 by screw, so that effectively front-wheel is limited on front fork 71, body construction is more Stablize.

Second fold mechanism is arranged on the crossbeam 2, and the front beam 23 is connected with the connecting seat 73, and described the Two-fold mechanism is arranged on the junction of front beam 23 and rear cross beam 21, the second fold mechanism be used to driving the front supporting member 7 to Positioned after the upset of 8 direction of rear support, realize that front supporting member 7 and the folding of rear cross beam 21 coordinate, reduce the volume of car body； Specifically, second foldable structure is spacing including driving part 111, positioning element 112, the first limiting section 113 and second Portion 114；Described 23 one end of front beam is connected by the second connecting rod 116 with rear cross beam 21, in order to facilitate front beam 23 relatively after Crossbeam 21 is overturn, and one end that the rear cross beam 21 is connected with front beam 23 is equipped with the recess of a U-shaped, when front beam 23 and rear cross beam 21 when overturning, and the end of front beam 23 can be pierced by from recess, and one end that the front beam 23 is connected with rear cross beam 21 is then Set for arc or sphere, be pierced by easy to front beam 23；Front beam 23 is hollow structure, and lower part is opening, the drive division Part 111 is placed in front beam 23, can be movable back and forth in front beam 23 under external force effect.

The driving part 111 includes top plate and two connectors being symmetrically set on top plate, top plate side outward bending shape Into a grip part 1114 so that driving part 111 is more convenient for pulling；Two connectors correspond to the position point of the second connecting rod 116 Not She You a sliding slot 117, the second connecting rod 116 is threaded through in the sliding slot 117 so that driving part 111 can be in the length of sliding slot 117 Degree is moved back and forth on direction；The positioning element 112 is to be threaded through bolt or screw in connector, the front beam 23 The upper symmetrical open slot 231 for being equipped with two bar shapeds, the positioning element 112 are piercing in the open slot 231, work as drive division respectively When part 111 moves left and right, positioning element 112 can move back and forth in open slot 231.

First limiting section, 113 and second limiting section 114 is the open slot of U-shaped, and first limiting section 113 is arranged on The front end of the rear cross beam 21, second limiting section 114 are arranged on the side locations of the rear cross beam 21；The front supporting member 7 When being in the deployed, the positioning element 112 is engaged with the first limiting section 113, and the front supporting member 7 is in folding position When, the positioning element 112 is engaged with the second limiting section 114, and the position of front supporting member 7 is effectively positioned；For reality Automatically reseting for existing driving part 111, is also provided with acting on the second back-moving spring 115 of the driving part 111, specifically , the second back-moving spring 115 be arranged on two connectors between, its one end is connected with second connecting rod 116, the other end and The positioning element 112 is connected, and when driving part 111 moves, second back-moving spring 115 will deform upon, so as to driving Component 111 produces restoring force, and driving part 111 is resetted.

When front supporting member 7 is in unfolded state, the positioning element 112 is caught in the first limiting section 113, front supporting member 7 can not be stirred；When needing to fold front supporting member 7, the driving part 111 is pulled to front-wheel direction so that positioning element 112 depart from the first limiting section 113, rotate down folding stand afterwards, drive front supporting member upset, after rotateing in place, unclamp and drive Dynamic component 111, driving part 111 reset upwards under the effect of second back-moving spring 115 so that positioning element 112 is caught in second In limiting section 114, front supporting member 7 is effectively positioned on folded state, front and rear upset will not occur for front supporting member 7；In other In embodiment, the driving part 111 may also be arranged on rear cross beam 21,113 and second limiting section 114 of the first limiting section On the front beam 23, by the moving left and right along rear cross beam 21 of driving part 111, itself and the first limiting section 113 are realized And the second cooperation between limiting section 114；Concrete structure and operating principle are identical with the above-mentioned mode referred to, no longer superfluous herein State.

Two foot piece 52 is respectively arranged on two side position of front-wheel, is passed through between the front-wheel 3 and the foot piece 52 One location structure 5 carries out removable mating connection, so that perambulator uses after foot piece 52 is pulled down as common go-cart, is having Used in the case of having foot piece 52 as tricycle so that perambulator can be changed between go-cart and bicycle, realize One car is dual-purpose, and practical performance is strong, and family only needs one perambulator of buying, reduces the life expenditure of family.

As shown in figure 5, further, the location structure 5 is in the bent axle 51 of Z-shaped shape, the shrapnel 53 on bent axle And the press section 54 on shrapnel；The press section 54 is installed in its one end of shrapnel 53；The bent axle 51 has first 511 and second linkage section 512 of linkage section, the foot piece 52 are pedal, and its one end is equipped with an inserting column 521, inserting column 521 Be connected with the second linkage section 512, between the two can by grafting, be spirally connected, the various ways such as rivet and connect；First linkage section 511 are set for hollow structure, and the shrapnel 53 is placed in first linkage section 511, and first linkage section 511 is equipped with through hole 55, the press section 54 can be pierced by by the through hole 55 to 511 outer surface of the first linkage section；The shrapnel 53 is stainless steel shrapnel, Preferably U-shaped structure, so that when pressing press section 54, shrapnel 53 can deform upon so that press section 54 can be on through hole 55 is interior It is lower flexible.

The both sides of the front-wheel 3 stretch out to form two axles 31 respectively, certainly with other embodiment, wheel shaft 31 with Between front-wheel or it is separately set；The wheel shaft 31 is equipped with an inserting groove 34, and first linkage section 511 is inserted into institute State in inserting groove 34 so that bent axle is connected with front-wheel；Further, the wheel shaft 31 is equipped with a perforate 311, when bent axle is with before When wheel is connected, press section 54 is pierced by 31 outer surface of wheel shaft after being each passed through through hole 55 and perforate 311, effectively prevents the first connection Section 511 is mutually disengaged with wheel shaft 31, is connected firmly；When needing to dismantle foot piece, press section 54 is pressed down on, disengages it from perforate After 311, bent axle is outwards extracted；Pressing operation is realized for convenience, we correspond to the perforate 311 in the outside of wheel shaft 31 Position be equipped with a groove 32, finger can be conformed in groove 32 during pressing, depart from perforate 311, dismounting easy to press section 54 Operation is more easy.

Preferably, the inserting groove 34 is set for polygonized structure, and first linkage section 511 also sets for polygonized structure Put, so that when the first linkage section 511 is inserted into inserting groove 34, can realize that rotation stop coordinates between the two, be not easy to beat between the two Sliding, foot piece can drive front-drive when rotating, so as to drive perambulator to move.

The foot piece disassembled in order to facilitate placement, we are provided with a rack 14 on the front supporting member 7, The rack 14 is equipped with the straight slot 141 of two polygons, after foot piece disassembles, you can bent axle 51 is inserted into this and is led to In groove 141, foot piece is collected, effectively prevents foot piece from losing；Further, 141 madial wall of straight slot is equipped with Hole 142, the press section can be pierced by 14 outer surface of rack by the hole, and then bent axle 51 are limited on rack 14； Pressing operation is realized for convenience, we correspond on the position in the hole 142 in the outside of rack 14 is equipped with a pressing groove 143, finger can be conformed in pressing groove 143 during pressing, depart from perforate 142 easy to press section 54, disassembling section is more easy.

Embodiment 2

As shown in fig. 6, its with embodiment 1 difference lies in：First foldable structure is arranged in the rear support 8, For driving the rear support 8 to be positioned after being overturn to 3 direction of front-wheel, realize that rear support 8 and the folding of crossbeam 2 are matched somebody with somebody Close, reduce the volume of car body；The crossbeam 2 only includes cross-beam body 21, and the rear support 8 includes upper support bar 81 and lower branch Strut 82, the upper support bar 81 are connected with the crossbeam 2, pass through first between 82 upper end of lower support bar and upper support bar 81 Connecting rod 107 is connected, and head rod 107 is screw or bolt；The cross section of the upper support bar 81 is U-shaped structure, is easy to Lower support bar 82 is inserted into, and 82 upper end of lower support bar connects hole 821 equipped with one, after upper support bar 81 is inserted into 82 upper end of lower support bar, is led to Head rod 107 is crossed through upper support bar 81 and connects hole 821, lower support bar 82 and upper support bar 81 are movably connected in one Rise.

First foldable structure includes actuator 101, locating piece 102, the first location division 103, the second location division 104, The actuator 101 is a movable sleeve being movably set on the lower support bar 82, it can be under external force along lower support Bar 82 is movable back and forth；It is attached between the actuator 101 and lower support bar 82 by connecting shaft 106, which is Bolt or screw；The lower support bar 82 is equipped with the straight slot 822 of a bar shaped, and the connecting shaft 106 can be penetrated to the straight slot 822 It is interior so that actuator 101 can move up and down on the length direction of straight slot 822 on lower support bar 82；Described first is fixed 103 and second location division 104 of position portion is the open slot of U-shaped, and the first location division 103 is arranged on the lower portion of the upper support bar 81 Put, the second location division 104 is arranged on the side locations of the upper support bar 81；The locating piece 102 is arranged on outside the actuator 101 On surface, its shape is identical with the shape of the first location division 103 and the second location division 104；The rear support 8 is in expansion position When putting, the locating piece 102 is engaged with the first location division 103, when the rear support 8 is in folding position, the positioning Part 102 is engaged with the second location division 104, and the position of rear support 8 is effectively positioned.

The upper end of the actuator 101 is also symmetrically equipped with two U-lags 108, which can be with head rod 107 Coordinate grafting；In order to realize automatically reseting for actuator, (the first back-moving spring 105 is also provided with, (the first back-moving spring 105 is placed in In the rear support 8, lower end and the lower part of the lower support bar 82 offset, and upper end is connected or offsets with connecting shaft 106, from And when actuator 101 is moved down along lower support bar 82, (the first back-moving spring 105 will be compressed, and give actuator 101 upward time Multiple power；In other embodiment, the (the first back-moving spring 105 also can one end be connected with connecting shaft 106, the other end and first connect Extension bar 107；Or one end is connected with connecting shaft 106, the other end offsets with crossbeam.

When rear support 8 is in unfolded state, the locating piece 102 is inserted in the first location division 103, upper support bar Head rod 107 on 81 is caught in two U-lags 108, and by two-point locating, lower support bar 82 effectively is positioned at expansion In state, front and rear upset will not occur for lower support bar 82；When needing to fold rear support 8, actuator 101 is pulled down so that the One connecting rod 107 departs from U-lag 108, and locating piece 102 departs from the first location division 103, at this time lower support bar 82 can relatively on Supporting rod 81 rotates, and rotates lower support bar 82 to front-wheel direction afterwards, when lower support bar 82 is substantially parallel in crossbeam, unclamps Actuator 101, makes it be resetted automatically under the action of (the first back-moving spring 105 so that connecting shaft 106 is caught in two again In U-lag 108, while locating piece 102 is inserted into the second location division 104, by two-point locating, lower support bar 82 is effectively fixed On folded state, front and rear upset will not occur for lower support bar 82 for position；In other embodiment, the actuator be also provided with can be It is movably set on the upper support bar 81, first location division 103, the second location division 104 are arranged on the lower support bar 82 On, by the actuator moving up and down on upper support bar 81, realize itself and the first location division on lower support bar 82 103rd, the cooperation between the second location division 104, folding operation, concrete structure and principle and aforesaid way phase are carried out to rear support Together, no longer it is described in detail.

Other structures are same as Example 2, and details are not described herein.

Embodiment 3

As shown in fig. 7, the present embodiment and embodiment 2 difference lies in：The front supporting member 7 include support body 72, Front fork 71 and connecting seat 73 arranged on 72 lower end of support body, the connecting seat 73 include being set in outside support body 72 Connector sleeve 731 and be fixedly arranged on the connecting rod 732 of 731 sidepiece of connector sleeve；Second fold mechanism is arranged on the front supporting member 7 With the junction of the crossbeam 2, specially arranged on connecting rod 732 and the junction of crossbeam 2, the second fold mechanism is used to drive institute State after front supporting member 7 is overturn to 8 direction of rear support and positioned, realize that front supporting member 7 and the folding of crossbeam 2 coordinate, reduce The volume of car body；Specifically, second foldable structure include driving part 111, positioning element 112, the first limiting section 113 with And second limiting section 114；Described 732 one end of connecting rod is connected by one second connecting rod 116 with crossbeam 2, is connected for convenience Bar 732 is overturn with respect to crossbeam 2, and one end that the crossbeam 2 is connected with connecting rod 732 is equipped with the recess of a U-shaped, when connecting rod 732 When being overturn with crossbeam 2, the end of connecting rod 732 can be pierced by from recess, the connecting rod 732 be connected with crossbeam 2 one End is then set for arc or sphere, is pierced by easy to connecting rod 732；Connecting rod 732 is hollow structure, and lower part is opening, described Driving part 111 is placed in connecting rod 732, can be movable back and forth in connecting rod 732 under external force effect；The driving part 111 include top plate and two connectors being symmetrically set on top plate, and the outward bending of top plate side forms a grip part 1114 so that drives Dynamic component 111 is more convenient for pulling；The position that two connectors correspond to the second connecting rod 116 is respectively equipped with a sliding slot 117, and second connects Extension bar 116 is threaded through in the sliding slot 117 so that driving part 111 can be moved back and forth on the length direction of sliding slot 117； The positioning element 112 is the bolt or screw being threaded through in connector, and two bar shapeds are symmetrically equipped with the connecting seat 73 Open slot, the positioning element 112 are piercing in the open slot respectively, when driving part 111 moves back and forth, positioning element 112 can move back and forth in open slot.

First limiting section, 113 and second limiting section 114 is the open slot of U-shaped, and first limiting section 113 is arranged on The front end of the crossbeam 2, second limiting section 114 are arranged on the lower position of the crossbeam；The front supporting member 7 is in expansion During position, the positioning element 112 is engaged with the first limiting section 113, described when the front supporting member 7 is in folding position Positioning element 112 is engaged with the second limiting section 114, and the position of front supporting member 7 is effectively positioned；In order to realize drive division Part 111 automatically resets, and is also provided with second back-moving spring 115, and the second back-moving spring 115 is arranged between two connectors, Its one end is connected with second connecting rod 116, and the other end is connected with the positioning element 112, when driving part 111 moves When, second back-moving spring 115 will deform upon, so as to produce restoring force to driving part 111, driving part 111 is answered Position.

When front supporting member 7 is in unfolded state, the positioning element 112 is caught in the first limiting section 113, front supporting member 7 can not be stirred；When needing to fold front supporting member 7, the driving part 111 is pulled so that positioning element 112 and first limits Position portion 113 departs from, and rotates down folding stand afterwards, drives front supporting member upset, after rotateing in place, unclamp driving part 111, drives Dynamic component 111 resets upwards under the effect of second back-moving spring 115 so that and positioning element 112 is caught in the second limiting section 114, Front supporting member 7 is effectively positioned on folded state, front and rear upset will not occur for front supporting member 7；It is described in other embodiment Driving part 111 may also be arranged on crossbeam 2, and 113 and second limiting section 114 of the first limiting section is arranged on the connecting rod On 732, by the moving left and right along crossbeam 2 of driving part 111, realize its with the first limiting section 113 and the second limiting section 114 it Between cooperation；Concrete structure and operating principle are identical with the above-mentioned mode referred to, and details are not described herein.

Other structures are same as Example 1, and details are not described herein.

Embodiment 4

As shown in fig. 6-7, between the present embodiment and embodiment 3 difference lies in：First foldable structure is arranged on described In rear support, for driving the rear support 8 to be positioned after being overturn to 3 direction of front-wheel, rear support 8 and crossbeam are realized 2 folding coordinates, and reduces the volume of car body；The rear support 8 includes upper support bar 81 and lower support bar 82, the upper support Bar 81 is connected with the crossbeam 2, is connected between 82 upper end of lower support bar and upper support bar 81 by head rod 107, the One connecting rod 107 is screw or bolt；The cross section of the upper support bar 81 is U-shaped structure, is inserted into easy to lower support bar 82, under 82 upper end of supporting rod connects hole 821 equipped with one, after upper support bar 81 is inserted into 82 upper end of lower support bar, is worn by head rod 107 Cross upper support bar 81 and connect hole 821, lower support bar 82 and upper support bar 81 are movably connected.

First foldable structure includes actuator 101, locating piece 102, the first location division 103, the second location division 104, The actuator 101 is a movable sleeve being movably set on the lower support bar 82, it can be under external force along lower support Bar 82 is movable back and forth；It is attached between the actuator 101 and lower support bar 82 by connecting shaft 106, which is Bolt or screw；The lower support bar 82 is equipped with the straight slot 822 of a bar shaped, and the connecting shaft 106 can be penetrated to the straight slot 822 It is interior so that actuator 101 can move up and down on the length direction of straight slot 822 on lower support bar 82；Described first is fixed 103 and second location division 104 of position portion is the open slot of U-shaped, and the first location division 103 is arranged on the lower portion of the upper support bar 81 Put, the second location division 104 is arranged on the side locations of the upper support bar 81；The locating piece 102 is arranged on outside the actuator 101 On surface, its shape is identical with the shape of the first location division 103 and the second location division 104；The rear support 8 is in expansion position When putting, the locating piece 102 is engaged with the first location division 103, when the rear support 8 is in folding position, the positioning Part 102 is engaged with the second location division 104, and the position of rear support 8 is effectively positioned.

The upper end of the actuator 101 is also symmetrically equipped with two U-lags 108, which can be with head rod 107 Coordinate grafting；In order to realize automatically reseting for actuator, (the first back-moving spring 105 is also provided with, (the first back-moving spring 105 is placed in In the rear support 8, the lower part of the lower support bar 82 offsets, and upper end offsets with head rod 107, so as to work as actuator 101 along lower support bar 82 move down when, (the first back-moving spring 105 will be compressed, and give actuator 101 upward restoring force.

When rear support 8 is in unfolded state, the locating piece 102 is inserted in the first location division 103, upper support bar Head rod 107 on 81 is caught in two U-lags 108, and by two-point locating, lower support bar 82 effectively is positioned at expansion In state, front and rear upset will not occur for lower support bar 82；When needing to fold rear support 8, actuator 101 is pulled down so that the One connecting rod 107 departs from U-lag 108, and locating piece 102 departs from the first location division 103, at this time lower support bar 82 can relatively on Supporting rod 81 rotates, and rotates lower support bar 82 to front-wheel direction afterwards, when lower support bar 82 is substantially parallel in crossbeam, unclamps Actuator 101, makes it be resetted automatically under the action of (the first back-moving spring 105 so that connecting shaft 106 is caught in two again In U-lag 108, while locating piece 102 is inserted into the second location division 104, by two-point locating, lower support bar 82 is effectively fixed On folded state, front and rear upset will not occur for lower support bar 82 for position.

Other structures are same as Example 3, and details are not described herein.

Obviously, described embodiment is only the part of the embodiment of the utility model, instead of all the embodiments. Based on the embodiment in the utility model, what those of ordinary skill in the art were obtained without making creative work Every other embodiment, should all belong to the scope of the utility model protection.

Claims (10)

1. a kind of foldable stroller, including handlebar (1), it is connected with the matched front supporting member of handlebar (7), with front supporting member Propped up after crossbeam (2), front-wheel (3), the foot piece (52) arranged on front-wheel both sides, seat (6) and be connected respectively with crossbeam two Support member (8), is connected to a trailing wheel (4) in the every rear support, it is characterised in that：The first foldable structure is further included, For driving the rear support (8) to be positioned after being overturn to front-wheel (3) direction；Second foldable structure, it is described for driving Front supporting member (7) is positioned after being overturn to rear support (8) direction.

A kind of 2. foldable stroller according to claim 1, it is characterised in that：First foldable structure be arranged on it is described after On supporting item (8) or arranged on the rear support (8) and the junction of the crossbeam (2).

A kind of 3. foldable stroller according to claim 1, it is characterised in that：Second fold mechanism is arranged on crossbeam (2) on or arranged on the junction of the front supporting member (7) and the crossbeam (2).

A kind of 4. foldable stroller according to claim 1, it is characterised in that：First foldable structure is included in external force Effect is lower to can be achieved actuator (101) movable back and forth, locating piece (102), on crossbeam (2) or arranged on rear support (8) On the first location division (103) and the second location division (104)；When the rear support (8) is in the deployed, the locating piece (102) be engaged with the first location division (103), when the rear support (8) is in folding position, the locating piece (102) with Second location division (104) is engaged.

A kind of 5. foldable stroller according to claim 1, it is characterised in that：Second foldable structure is included in external force Effect is lower to can be achieved driving part (111) movable back and forth, positioning element (112) and on crossbeam (2) or arranged on front support The first limiting section (113) and the second limiting section (114) on part (7), it is described when the front supporting member (7) is in the deployed Positioning element (112) is engaged with the first limiting section (113), when the front supporting member (7) is in folding position, the location division Part (112) is engaged with the second limiting section (114).

A kind of 6. foldable stroller according to claim 4, it is characterised in that：First foldable structure further includes effect (the first back-moving spring (105) in the actuator (10).

A kind of 7. foldable stroller according to claim 6, it is characterised in that：The actuator passes through a connecting shaft (106) the activity cooperation with the rear support or the crossbeam, one end and the company of the (the first back-moving spring (12) are realized Spindle (106) is engaged.

A kind of 8. foldable stroller according to claim 5, it is characterised in that：Second foldable structure further includes effect Second back-moving spring (115) in the driving part (111).

A kind of 9. foldable stroller according to claim 1, it is characterised in that：The front-wheel (3) and the foot piece (52) removable mating connection is carried out by a location structure (5) between, the location structure (5) rotation stop between front-wheel coordinates.

A kind of 10. foldable stroller according to claim 9, it is characterised in that：The location structure (5) includes bent axle (51), the shrapnel on bent axle (53) and press section (54) on shrapnel, the bent axle (51) are equipped with for press section (54) through hole (55) being pierced by.