CN208036379U - A kind of children trolley for facilitating folding to fold - Google Patents

Abstract

The utility model discloses a kind of children trolleys for facilitating folding to fold, include frame section and housing portion, frame section includes handle assembly, front component, wheel assembly and mounting support tube, and handle assembly connects into rotatable folding structure with mounting support tube；Housing portion includes mounting pipe, seat upper tube and seat down tube；By seat down tube, folds steel cable, hypozygal, upper joint, folds the retrieving structure that the components such as gear, collapsible spring and block of returning the vehicle to the garage and knock off form housing portion, by returning the vehicle to the garage and knock off, block tenses collapsible spring, make to fold gear and be detached from upper joint to engage, realizes that housing portion folds；And the retrieving structure of frame section is formed by intrinsic articulation, support joint, the gear that returns the vehicle to the garage and knock off, the spring that returns the vehicle to the garage and knock off, the pull rod that returns the vehicle to the garage and knock off, the components such as steel cable that return the vehicle to the garage and knock off up and down, by returning the vehicle to the garage and knock off, pull rod tenses the steel cable that returns the vehicle to the garage and knock off up and down, intra-articular gear is set to release engaging, realize both can forward direction return the vehicle to the garage and knock off, the effect that also can reversely return the vehicle to the garage and knock off.Easy to operate, time saving and energy saving, one hand can be completed.

Description

A kind of children trolley for facilitating folding to fold

Technical field

The utility model is related to infant articles technical fields, and in particular to a kind of baby child's hand push facilitating folding and expansion Bassinet structure.

Background technology

With the improvement of living standards, tool of the perambulator at babies' indispensability, infant is put onboard by being grown up The nurse action of big people can not only be significantly facilitated by push walking, moreover it is possible to keep baby itself more comfortable, while also more Safety.However, baby stroller at present on the market is typically more complicated, it is largely not foldable, stores up and carry all It is inconvenient.To solve the above-mentioned problems, someone devises foldable baby carriage, however, previous perambulator needs manually mostly Individually pull（Or it pushes）Each component such as handle pipe, front foot pipe, rear foot tube, mounting pipe folds to realize, and this manual operation Mode is more time-consuming, and operation is cumbersome, and is difficult to singlehanded completion operation, can be made to the weaker user of some manipulative abilities At inconvenience, especially it is detrimental to old man and women uses.

Utility model content

The technical problem to be solved by the present invention is to provide a kind of structure designs more rationally, expansion operates and folding operation The more convenient children trolley for facilitating folding to fold that is laborsaving, both positive can returning the vehicle to the garage and knock off or reversely return the vehicle to the garage and knock off.

In order to solve the above technical problems, the utility model adopts the following technical solution：A kind of youngster for facilitating folding to fold Virgin cart, includes frame section and housing portion, and frame section includes handle assembly, front component, wheel assembly and seat Frame support tube, handle assembly connect into rotatable folding structure with mounting support tube；Housing portion includes soft for installing Mounting pipe, seat upper tube and the seat down tube of seat piece, mounting pipe one be soft seat piece can be fixed will not to pull forward, second is that It can together be folded with soft seat piece when folding, it is characterised in that：There is a fixed seat in mounting support tube, fixed seat Rear portion is connected with a rear foot tube, the bottom end connection of wheel assembly and rear foot tube；The upper end of front component passes through shaft and fixed seat Front end connect into turntable, the upper position of front component is connected with a rotatable connecting tube, connecting tube it is another End connects into turntable with a slide；The slide, which is mounted on to be formed in the sliding slot of rear foot tube, can slide up and down structure, in cunning It is provided with a slide axis in seat, and the bottom of fixed seat is provided with one and is revolved with slide axis matching and portion with hook Turn grab, catching on slide axis by the crook of grab forms the structure that is locked to front component；Grab is connected with one Under the steel cable that returns the vehicle to the garage and knock off form rotary drive structure to grab, under the return the vehicle to the garage and knock off upper end connection one of steel cable return the vehicle to the garage and knock off pull rod, the pull rod that returns the vehicle to the garage and knock off peace In fixed seat, and grab is then fitted to the bottom of fixed seat by pivot pin and torsional spring；

The lower end of seat upper tube is connected with upper joint, and the upper end of seat down tube is connected with hypozygal, seat upper tube and seat Down tube is interconnected to form rotatable folding structure by upper joint and hypozygal；The front end of mounting pipe passes through under shaft and seat Pipe connects to form rotary structure, and the medium position of mounting pipe is connect by pivot pin with the lower end of mounting connection sheet, mounting connection The upper end of piece and the lower part of upper joint connect into turntable；It is equipped with collapsible spring between upper joint and hypozygal and folds Gear, and the inside of upper joint and hypozygal is equipped with the tooth slot structure that gear matching is folded with this, collapsible spring compression folds Gear makes to fold gear mutually to be engaged to form fixed structure with the tooth slot structure of upper joint and hypozygal；Gear is folded to be connected with Fold steel cable, fold steel cable and be connected with block of returning the vehicle to the garage and knock off, by block tension of returning the vehicle to the garage and knock off fold steel cable make to fold gear and upper joint or Hypozygal is detached to form rotatable retrieving structure；Seat collapses under folded state, and seat down tube is mutually posted by with seat upper tube Together, and mounting pipe is posted by the bottom surface of seat down tube；

The upper joint and hypozygal of both sides are coaxially connected on a socket joint respectively, and housing portion is entirely through two sockets Joint, which plugs, to be fixed on frame section；Socket is intra-articular to be also equipped with tooth slot structure, is equipped between upper joint and socket joint Adjustment spring and adjustment gear, adjustment spring, which compresses adjustment gear, makes adjustment gear and upper joint and the tooth slot structure in socket joint Mutually engaging forms fixed structure；Adjustment gear is connected with adjusting steel cable, adjusts steel cable and is connected with regulation button, passes through adjusting Button, which tenses adjusting steel cable, makes adjustment gear be detached from socket joint, and forming housing portion can integrally rotated angular adjustment knot Structure.

Further, the intrinsic articulation that two upper ends of the mounting support tube are equipped with, and the lower end in the socket joint is inserted On a support joint, it is equipped with and returns the vehicle to the garage and knock off spring and the gear that returns the vehicle to the garage and knock off between intrinsic articulation and support joint, and intrinsic articulation and support The inside in joint is equipped with the tooth slot structure with the gear matching of returning the vehicle to the garage and knock off, the spring compression that returns the vehicle to the garage and knock off return the vehicle to the garage and knock off gear make to return the vehicle to the garage and knock off gear with it is interior The tooth slot structure in joint and support joint, which mutually engages, forms fixed structure；The gear that returns the vehicle to the garage and knock off is connected with the steel cable that returns the vehicle to the garage and knock off, upper receipts Vehicle steel cable is connect with the pull rod that returns the vehicle to the garage and knock off, and tensing the steel cable that returns the vehicle to the garage and knock off by the pull rod that returns the vehicle to the garage and knock off makes return the vehicle to the garage and knock off gear and support joint disengaging shape At rotary structure；

The lower end of the handle assembly is connected with extrinsic articulation, and tooth slot structure is also equipped in extrinsic articulation, in support joint and outside Commutation spring and tumbler gear are equipped between joint, commutation spring compression tumbler gear makes tumbler gear and support joint and outer pass The tooth slot structure of section, which mutually engages, forms fixed structure；Tumbler gear is connected with commutation steel cable, adjusts steel cable and is connected with commutation Sliding sleeve, commutation cunning are set on handle assembly, and tensing commutation steel cable by the sliding sleeve that commutates keeps tumbler gear and support joint de- From handle assembly is rotatable, and forming handle assembly can integrally rotated angle adjustment mechanism；

There is the fixing axle for installing the gear that returns the vehicle to the garage and knock off, return the vehicle to the garage and knock off spring and the geared sleeve that returns the vehicle to the garage and knock off are solid set on this in the intrinsic articulation On dead axle, and the gear that returns the vehicle to the garage and knock off will return the vehicle to the garage and knock off spring compression in intrinsic articulation；Under the extruding for the spring that returns the vehicle to the garage and knock off, the gear that returns the vehicle to the garage and knock off is pressed simultaneously In intrinsic articulation, the tooth for the gear that returns the vehicle to the garage and knock off engages to form housing portion and seat with the tooth slot structure in intrinsic articulation and support joint simultaneously The fixed structure of frame support tube；Extrinsic articulation is also coaxially fixed in the fixing axle, and tumbler gear and commutation spring are then sheathed on outside In fixing axle between joint and support joint.

Further, it the hypozygal and folds between gear, upper joint, adjustment gear and socket joint by a fixing axle Coaxially connected, collapsible spring is set to geared sleeve is folded in the fixing axle, and folds gear and collapsible spring is pressed in hypozygal In；Under the extruding of collapsible spring, fold gear while being pressed in upper joint, fold gear tooth simultaneously with upper joint and under Tooth slot structure in joint engages the fixed structure to form seat upper tube and seat down tube；Adjustment spring and adjustment gear are then arranged In fixing axle between upper joint and socket joint.

Further, described to fold in gear equipped with hole is passed through for folding the rope that steel cable passes through, steel cable is folded from the rope Pass through hole pass through fold gear and take up on folding gear；The front end for folding steel cable has a columned rope gland, receives It closes steel cable and is stuck in hypozygal by the rope gland and formed a fixed connection structure with hypozygal；It is equipped with and uses in the adjustment gear Hole is passed through in what adjusting steel cable passed through, steel cable is adjusted and passes through hole across adjustment gear from this and take up in adjustment gear；It adjusts There is a columned gland, adjusting steel cable to be stuck in upper joint by the gland and be formed admittedly with upper joint for the front end of steel cable Determine connection structure.

Further, the block of returning the vehicle to the garage and knock off is in the seat down tube, folds steel cable and penetrates and return the vehicle to the garage and knock off from seat down tube and pulls Block connects；The regulation button is arranged in seat upper tube, and adjusting steel cable is penetrated from seat upper tube to be connect with regulation button.

Further, a rope card division is equipped in upper joint, rope card division is stretched out towards hypozygal side, will fold steel cable court Hypozygal direction is ejected to the position flushed with collapsible spring end, plays enlarging moment, is enable to fold steel cable and is more convenient Ground pulling folds gear.

Further, further include having an armrest assembly, the both ends of armrest assembly are respectively equipped with armrest joint, and armrest assembly is logical The medial surface for crossing armrest joint and hypozygal connects to form rotary structure.

Further, the gear that folds has an axle sleeve stretched out towards socket joint direction, and the end of the axle sleeve has Gear buckle is folded, axle sleeve passes through upper joint to make to fold gear buckle and clasps adjustment gear to form linkage structure.When folding When making to fold the tooth socket of gear disengaging upper joint under the action of steel cable, folding gear buckle can drive adjustment gear to move together, Adjustment gear is set to be detached from the tooth socket in socket joint, socket joint and upper joint are in the unlocked state, at this point, socket joint can limit It is freely rotated in fixed angular range, is conducive to seat part progress reverse state and returns the vehicle to the garage and knock off.After socket joint is unlocked with upper joint, Down tube on the seat folded is rotated toward handle assembly direction together, down tube on seat is made to be folded to same side with handle assembly To.

Further, a rod shaft is fixed in fixed seat, the pull rod that returns the vehicle to the garage and knock off is mounted on the rod shaft, and pull rod turns Pull rod torsional spring is arranged on axis, pull rod one end connects the pull rod that returns the vehicle to the garage and knock off, and other end connection fixing base forms oneself for the pull rod that returns the vehicle to the garage and knock off Dynamic return structure.

Housing portion folds：Gear is folded under collapsible spring effect while being caught in the tooth socket of upper joint and hypozygal, So that lower articular is in fastening state.When returning the vehicle to the garage and knock off, block of returning the vehicle to the garage and knock off up is pulled, drive folds steel cable movement.Fold steel cable Rope gland be fixed on motionless in the tooth socket of hypozygal, can will fold gear when fold steel cable and be straightened when is pressed onto hypozygal Gear grooved in, fold gear be detached from upper joint tooth socket, lower articular fastening state disappear.The shape for block of returning the vehicle to the garage and knock off is pulled in holding State up pushes away seat down tube, and seat skeleton drives mounting connection sheet and mounting pipe to fold by four-bar linkage structure, until under seat Pipe reclines completely with seat upper tube.When seat is unfolded, by the reverse operating for the process of returning the vehicle to the garage and knock off, the block that will finally return the vehicle to the garage and knock off is put down, and is received It closes gear to be pressed back under the action of collapsible spring while with the tooth socket of the tooth socket of upper joint and hypozygal engaging, is formed and fixed Structure.

Frame section folds：A, the tooth socket for pulling the pull rod that returns the vehicle to the garage and knock off that the gear that returns the vehicle to the garage and knock off is driven to be detached from support joint, at this time support are closed Section engages to form one under the action of tumbler gear with extrinsic articulation, and handle assembly under gravity around intrinsic articulation due to turning downwards It is dynamic, it drives support joint and housing portion thereon to rotate together, realizes and fold.

B, it is lifted up when returning the vehicle to the garage and knock off pull rod, while can pull the lower steel cable that returns the vehicle to the garage and knock off that grab is driven to be detached from and the engaging of slide axis State, front foot group is close toward the rotation of rear foot tube direction under the effect of gravity, and slide slides on the sliding slot of rear foot tube, to realize Vehicle frame returns the vehicle to the garage and knock off.

The utility model by seat down tube, fold steel cable, hypozygal, upper joint, fold gear, collapsible spring and return the vehicle to the garage and knock off The components such as block form the retrieving structure of housing portion, and by returning the vehicle to the garage and knock off, block tenses collapsible spring, makes to fold gear and upper joint It is detached from engaging, realizes that seat down tube all can be to realize folding or expansion by ganged movement with rotary folding, other components；And By mounting support tube, intrinsic articulation, support joint, the gear that returns the vehicle to the garage and knock off, the spring that returns the vehicle to the garage and knock off, the pull rod that returns the vehicle to the garage and knock off, the components shape such as steel cable of returning the vehicle to the garage and knock off up and down At the retrieving structure of frame section, the steel cable that returns the vehicle to the garage and knock off up and down is tensed by pulling the pull rod that returns the vehicle to the garage and knock off, intra-articular gear is made to release engaging, Joint can both rotate in the forward direction, and can also reversely rotate, to realize both can forward direction return the vehicle to the garage and knock off, the effect that also can reversely return the vehicle to the garage and knock off.And it is entire The process of returning the vehicle to the garage and knock off can be easy to operate, time saving and energy saving by manually individually operated, and operation can be completed in one hand, is very beneficial for old People and women use, and fold the diminution of folded state lower volume, easy to carry.

Description of the drawings

Fig. 1 is the utility model unfolded state structural schematic diagram；

Fig. 2 is the decomposition diagram of the utility model frame part；

Fig. 3 is the partial enlarged view of Fig. 2；

Fig. 4 is the side schematic view of the utility model frame part；

Fig. 5 is the assembling schematic diagram of front component and wheel assembly；

Fig. 6 is the diagrammatic cross-section after the assembly of frame section joint；

Fig. 7 is the decomposition diagram of the utility model housing portion；

Fig. 8 is the partial enlarged view of Fig. 7；

Fig. 9 is the diagrammatic cross-section after the assembly of housing portion joint；

Figure 10 is the utility model folding process schematic diagram；

Figure 11 is the utility model completely folded state schematic diagram.

In figure, 1 is handle assembly, and 2 be intrinsic articulation, and 3 be the spring that returns the vehicle to the garage and knock off, and 4 be the gear that returns the vehicle to the garage and knock off, and 5 be support joint, and 6 be to change To sliding sleeve, 7 be commutation steel cable, and 8 be extrinsic articulation, and 9 be commutation spring, and 10 be tumbler gear, and 11 be the steel cable that above returns the vehicle to the garage and knock off, and 12 be to return the vehicle to the garage and knock off Pull rod, 13 be pull rod torsional spring, and 14 be rod shaft, and 15 be fixed seat, and 16 be rear foot tube, and 17 be slide axis, and 18 be slide, 19 For wheel assembly, 20 be front component, and 21 be connecting tube, and 22 be grab, 23 be under return the vehicle to the garage and knock off steel cable, 24 be mounting support tube, A1 For hypozygal, A2 is collapsible spring, and A3 is to fold gear, and A4 is upper joint, and A5 is to adjust steel cable, and A6 is adjustment gear, and A7 is Socket joint, A8 are adjustment spring, and A9 is mounting connection sheet, and A10 is mounting pipe, and A11 is to fold steel cable, and A12 is seat down tube, A13 is block of returning the vehicle to the garage and knock off, and A14 is handrail, and A15 is seat upper tube, and A16 is armrest joint, and A301 is to fold gear buckle.

Specific implementation mode

In the present embodiment ,-Figure 11, described to facilitate the children trolley that folding folds referring to Fig.1, include frame section and Housing portion, frame section include handle assembly 1, front component 20, wheel assembly 19 and mounting support tube 24, handle assembly 1 connects into rotatable folding structure with mounting support tube 24；Housing portion includes mounting pipe A10, seat upper tube A15 and seat Down tube A12；There is a fixed seat 15 in mounting support tube 24, the rear portion of fixed seat 15 is connected with a rear foot tube 16, rear wheels Part 19 is connect with the bottom end of rear foot tube 16；The upper end of front component 20 is connected into rotatably by the front end of shaft and fixed seat 15 The upper position of structure, front component 20 is connected with a rotatable connecting tube 21, the other end of connecting tube 21 and a slide 18 Connect into turntable；The slide 18, which is mounted on to be formed in the sliding slot of rear foot tube 16, can slide up and down structure, in slide 18 Be provided with a slide axis 17, and the bottom of fixed seat 15 be provided with one match with the slide axis 17 and portion with hook can Grab 22 is rotated, be locked structure of the formation of slide axis 17 to front component 20 is caught on by the crook of grab 22；Card Hook 22 is connected with the steel cable 23 that returns the vehicle to the garage and knock off and is formed to the rotary drive structure of grab 22, under the return the vehicle to the garage and knock off upper end connection one of steel cable 23 receive Car pull bar 12, the pull rod 12 that returns the vehicle to the garage and knock off are mounted in fixed seat 15, and grab 22 is then fitted to fixed seat by pivot pin and torsional spring 15 bottom；

The lower end of seat upper tube A15 is connected with upper joint A4, and the upper end of seat down tube A12 is connected with hypozygal A1, seat Upper tube A15 and seat down tube A12 is interconnected to form rotatable folding structure by upper joint A4 and hypozygal A1；Mounting pipe The front end of A10 connect to form rotary structure by shaft with seat down tube A12, and the medium position of mounting pipe A10 passes through pivot pin It is connect with the lower end of mounting connection sheet A9, the upper end of mounting connection sheet A9 connects into turntable with the lower part of upper joint A4； It is equipped with collapsible spring A2 between upper joint A4 and hypozygal A1 and folds gear A 3, and the inside of upper joint A4 and hypozygal A1 It is equipped with the tooth slot structure that the matching of gear A 3 is folded with this, collapsible spring A2 compressions, which fold gear A 3, to be made to fold gear A 3 and upper pass The tooth slot structure of section A4 and hypozygal A1, which mutually engages, forms fixed structure；It folds gear A 3 and is connected with and fold steel cable A11, receive It closes steel cable A11 and is connected with the block A13 that returns the vehicle to the garage and knock off, folding steel cable A11 by block A13 tensions of returning the vehicle to the garage and knock off makes to fold gear A 3 and upper joint A4 is detached to form rotatable retrieving structure；Seat collapses under folded state, and seat down tube A12 mutually reclines with seat upper tube A15 In together, and mounting pipe A10 is posted by the bottom surface of seat down tube A12；

The upper joint A4 and hypozygal A1 of both sides are coaxially connected on a socket joint A7 respectively, housing portion entirely through Two socket joint A7, which are plugged, to be fixed on frame section；Also tooth slot structure is equipped in the A7 of socket joint, in upper joint A4 and socket Be equipped with adjustment spring A8 and adjustment gear A6 between the A7 of joint, adjustment spring A8 compress adjustment gear A6 make adjustment gear A6 with it is upper The tooth slot structure of joint A4 and socket joint A7, which mutually engage, forms fixed structure；Adjustment gear A6 is connected with adjusting steel cable A5 adjusts steel cable A5 and is connected with regulation button（It does not indicate）, by regulation button tense adjust steel cable A5 make adjustment gear A6 with Socket joint A7 is detached from, and forming housing portion can integrally rotated angle adjustment mechanism.

The intrinsic articulation 2 that two upper ends of the mounting support tube 24 are equipped with, and the lower end of the socket joint A7 is inserted in On one support joint 5, it is equipped with and returns the vehicle to the garage and knock off spring 3 and the gear 4 that returns the vehicle to the garage and knock off between intrinsic articulation 2 and support joint 5, and intrinsic articulation 2 and branch The inside in support joint 5 is equipped with the tooth slot structure with the matching of gear 4 of returning the vehicle to the garage and knock off, and the spring 3 that returns the vehicle to the garage and knock off, which compresses the gear 4 that returns the vehicle to the garage and knock off, makes the tooth that returns the vehicle to the garage and knock off Wheel 4 mutually engages to form fixed structure with the tooth slot structure of intrinsic articulation 2 and support joint 5；The gear 4 that returns the vehicle to the garage and knock off, which is connected with, to return the vehicle to the garage and knock off Steel cable 11, the steel cable 11 that above returns the vehicle to the garage and knock off are connect with the pull rod 12 that returns the vehicle to the garage and knock off, and tensing the steel cable 11 that returns the vehicle to the garage and knock off by the pull rod 12 that returns the vehicle to the garage and knock off makes to return the vehicle to the garage and knock off Gear 4 is detached from support joint 5 and forms rotary structure；

The lower end of the handle assembly 1 is connected with extrinsic articulation 8, and tooth slot structure is also equipped in extrinsic articulation 8, in support joint 5 Be equipped with commutation spring 9 and tumbler gear 10 between extrinsic articulation 8, commutation spring 9 compress tumbler gear 10 make tumbler gear 10 with The tooth slot structure of support joint 5 and extrinsic articulation 8, which mutually engages, forms fixed structure；Tumbler gear 10 is connected with commutation steel cable 7, It adjusts steel cable 7 and is connected with commutation sliding sleeve 6, commutation sliding sleeve 6 is arranged on handle assembly 1, and commutation steel cable is tensed by the sliding sleeve 6 that commutates 7 make tumbler gear 10 be detached from support joint 5, and handle assembly 1 is rotatable, and forming handle assembly 1 can integrally rotated angle tune Section structure；

There is the fixing axle for installing the gear 4 that returns the vehicle to the garage and knock off in the intrinsic articulation 2（It does not indicate）, return the vehicle to the garage and knock off spring 3 and the tooth that returns the vehicle to the garage and knock off Wheel 4 is sheathed in the fixing axle, and the gear 4 that the returns the vehicle to the garage and knock off spring 3 that will return the vehicle to the garage and knock off is pressed in intrinsic articulation 2；In the extruding of spring 3 of returning the vehicle to the garage and knock off Under, returning the vehicle to the garage and knock off gear 4 while being pressed in intrinsic articulation 2, the tooth of the gear 4 that returns the vehicle to the garage and knock off simultaneously with the tooth socket in intrinsic articulation 2 and support joint 5 Structure engages the fixed structure to form housing portion and mounting support tube 24；Extrinsic articulation 8 is also coaxially fixed in the fixing axle, is changed It is then sheathed on extrinsic articulation 8 to gear 10 and commutation spring 9 and supports in the fixing axle between joint 5.

The hypozygal A1 and fold between gear A 3, upper joint A4, adjustment gear A6 and socket joint A7 by one fix Axis（It does not indicate）It is coaxially connected, it collapsible spring A2 and folds gear A 3 and is sheathed in the fixing axle, and fold gear A 3 to fold Spring A2 is pressed in hypozygal A1；It under the extruding of collapsible spring A2, folds gear A 3 while being pressed in upper joint A4, receive The tooth for closing gear A 3 engages to form seat upper tube A15 and seat down tube with the tooth slot structure in upper joint A4 and hypozygal A1 simultaneously The fixed structure of A12；Adjustment spring A8 and adjustment gear A6 is then sheathed on the fixing axle between upper joint A4 and socket joint A7 On.

It is described to fold in gear A 3 equipped with hole is passed through for folding the rope that steel cable A11 is passed through, it folds steel cable A11 and is worn from the rope More hole passes through and folds gear A 3 and take up on folding gear A 3；There is a columned rope to fix for the front end for folding steel cable A11 Head, folds steel cable A11 and is stuck in hypozygal A1 by the rope gland and form a fixed connection structure with hypozygal A1；The adjusting Be equipped in gear A 6 for adjusting the hole of passing through that steel cable A5 passes through, adjust steel cable A5 from this pass through hole across adjustment gear A6 and around Tightly on adjustment gear A6；The front end for adjusting steel cable A5 has a columned gland, adjusts steel cable A5 and passes through the gland It is stuck in upper joint A4 and forms a fixed connection structure with upper joint A4.

The block A13 that returns the vehicle to the garage and knock off folds steel cable A11 and penetrates and return the vehicle to the garage and knock off from seat down tube A12 on seat down tube A12 Block A13 connections；The regulation button is arranged on seat upper tube A15, adjusts steel cable A5 and penetrates and adjust from seat upper tube A15 Button connects.

A rope card division is equipped in upper joint A4, rope card division is stretched out towards the sides hypozygal A4, will fold steel cable A11 downward Joint direction is ejected to the position flushed with the ends collapsible spring A2, plays enlarging moment, enables to fold steel cable A11 more square Just it pulls and folds gear A 3.

Further include having an armrest assembly A14, the both ends of armrest assembly A14 are respectively equipped with armrest joint A16, armrest assembly A14 connect to form rotary structure by armrest joint A16 with the medial surface of hypozygal A1.

The gear A 3 that folds has an axle sleeve stretched out towards the socket joint directions A7, and the end of the axle sleeve, which has, folds tooth Wheel buckle A301, axle sleeve pass through upper joint A4 to make to fold gear buckle A301 and clasp adjustment gear A6 to form linkage structure.When When making to fold the tooth socket of the disengaging upper joint of gear A 3 A4 under the action of folding steel cable A11, folding gear buckle A301 can drive Adjustment gear A6 is moved together, and adjustment gear A6 is made to be detached from the tooth socket of socket joint A7, and socket joint A7 is in upper joint A4 Unlocked state is conducive to seat part and carries out reversed shape at this point, socket joint A7 can be freely rotated in the angular range of restriction State is returned the vehicle to the garage and knock off.Socket joint A7 rotates down tube on the seat folded with after upper joint A4 unlocks toward 1 direction of handle assembly together, Down tube on seat is set to be folded to same direction with handle assembly 1.

A rod shaft 14 is fixed in fixed seat 15, the pull rod 12 that returns the vehicle to the garage and knock off is mounted on the rod shaft 14, and pull rod turns Pull rod torsional spring 13 is arranged on axis 14,13 one end of pull rod torsional spring connects the pull rod 12 that returns the vehicle to the garage and knock off, and other end connection fixing base 15 is formed and received The self-return structure of car pull bar 12.

Housing portion folds：Gear A 3 is folded under collapsible spring A2 effects while being caught in upper joint A4's and hypozygal A1 In tooth socket so that lower articular is in fastening state.When returning the vehicle to the garage and knock off, the block A13 that returns the vehicle to the garage and knock off up is pulled, drive folds steel cable A11 Movement.Fold steel cable A11 rope gland be fixed on it is motionless in the tooth socket of hypozygal A1, when folding steel cable A11 and being straightened It can will fold gear A 3 to be pressed onto in the gear grooved of hypozygal A1, fold the tooth socket that gear A 3 is detached from upper joint A4, lower articular card Conjunction state disappears.The state that the block A13 that returns the vehicle to the garage and knock off is pulled in holding, up pushes away seat down tube A12, and seat skeleton passes through four-bar linkage structure Mounting connection sheet A9 and mounting pipe A10 is driven to fold, until seat down tube A12 and seat upper tube A15 recline completely.Seat is unfolded When position, by the reverse operating for the process of returning the vehicle to the garage and knock off, the block A13 that will finally return the vehicle to the garage and knock off is put down, and folds effect of the gear A 3 in collapsible spring A2 Under be pressed back into while engaging with the tooth socket of the tooth socket of upper joint A4 and hypozygal A1, form fixed structure.

Frame section folds：A, it pulls the pull rod 12 that returns the vehicle to the garage and knock off that the gear 4 that returns the vehicle to the garage and knock off is driven to be detached from the tooth socket in support joint 5, props up at this time It is integrated that support joint 5 engage formation under the action of tumbler gear 10 with extrinsic articulation 8, handle assembly 1 due under gravity around interior Joint 2 rotates down, and support joint 5 and housing portion thereon is driven to rotate together, and realizes and folds.

B, it is lifted up when returning the vehicle to the garage and knock off pull rod 12, while can pull the lower steel cable 23 that returns the vehicle to the garage and knock off that grab 22 is driven to be detached from and slide axis Fastening state, front foot group 20 under the effect of gravity toward 16 direction of rear foot tube rotate close, sliding slot of the slide 18 in rear foot tube 16 Upper sliding, to realize returning the vehicle to the garage and knock off for vehicle frame.

The utility model is described in detail above, it is described above, only the preferred embodiment of the utility model and , when the utility model practical range cannot be limited, i.e., all according to the made equivalent changes and modifications of the application range, it all should still belong to this In utility model covering scope.

Claims (9)

1. a kind of children trolley for facilitating folding to fold, includes frame section and housing portion, frame section includes hand Component, front component, wheel assembly and mounting support tube, handle assembly connects into rotatable folding knot with mounting support tube Structure；Housing portion includes for installing the mounting pipe of soft seat piece, seat upper tube and seat down tube, it is characterised in that：It is present There is a fixed seat, the rear portion of fixed seat to be connected with a rear foot tube, the bottom end connection of wheel assembly and rear foot tube in frame support tube； The upper end of front component connects into turntable by the front end of shaft and fixed seat, and the upper position of front component is connected with One rotatable connecting tube, the other end of connecting tube and a slide connect into turntable；The slide is mounted on rear foot tube Structure can be slided up and down by being formed in sliding slot, be provided with a slide axis in slide, and the bottom of fixed seat be provided with one with The slide axis matches and the rotatable grab in portion with hook, catches on slide axis by the crook of grab and is formed to front wheels The structure that is locked of part；Grab is connected with the steel cable that returns the vehicle to the garage and knock off and forms rotary drive structure to grab, under return the vehicle to the garage and knock off steel cable Upper end connection one is returned the vehicle to the garage and knock off pull rod, and the pull rod that returns the vehicle to the garage and knock off is mounted in fixed seat, and grab be then fitted to by pivot pin and torsional spring it is solid The bottom of reservation；

The lower end of seat upper tube is connected with upper joint, and the upper end of seat down tube is connected with hypozygal, seat upper tube and seat down tube It is interconnected to form rotatable folding structure by upper joint and hypozygal；The front end of mounting pipe is connected by shaft and seat down tube It connects to form rotary structure, the medium position of mounting pipe is connect by pivot pin with the lower end of mounting connection sheet, mounting connection sheet Upper end and the lower part of upper joint connect into turntable；It is equipped with collapsible spring between upper joint and hypozygal and folds tooth Wheel, and the inside of upper joint and hypozygal is equipped with the tooth slot structure that gear matching is folded with this, collapsible spring compression folds tooth Wheel makes to fold gear mutually to be engaged to form fixed structure with the tooth slot structure of upper joint and hypozygal；It folds gear and is connected with receipts Close steel cable, fold steel cable and be connected with block of returning the vehicle to the garage and knock off, by block tension of returning the vehicle to the garage and knock off fold steel cable make to fold gear and upper joint or under Joint is detached to form rotatable retrieving structure；Seat collapses under folded state, and seat down tube is mutually posted by one with seat upper tube It rises, and mounting pipe is posted by the bottom surface of seat down tube；

The upper joint and hypozygal of both sides are coaxially connected on a socket joint respectively, and housing portion is entirely through two socket joints It plugs and is fixed on frame section；Socket is intra-articular to be also equipped with tooth slot structure, is equipped with and adjusts between upper joint and socket joint Spring and adjustment gear, adjustment spring, which compresses adjustment gear, keeps adjustment gear and the tooth slot structure of upper joint and socket joint homogeneous Mutually engaging forms fixed structure；Adjustment gear is connected with adjusting steel cable, adjusts steel cable and is connected with regulation button, passes through regulation button Tensing adjusting steel cable makes adjustment gear be detached from socket joint, and forming housing portion can integrally rotated angle adjustment mechanism.

2. according to claim 1 facilitate the children trolley that folding folds, it is characterised in that：The mounting support tube The intrinsic articulation that two upper ends are equipped with, and the lower end in the socket joint is inserted on a support joint, is closed in intrinsic articulation and support Return the vehicle to the garage and knock off spring and the gear that returns the vehicle to the garage and knock off are equipped between section, and the inside in intrinsic articulation and support joint is equipped with and the gear matching of returning the vehicle to the garage and knock off Tooth slot structure, the spring compression that the returns the vehicle to the garage and knock off gear that returns the vehicle to the garage and knock off make to return the vehicle to the garage and knock off and gear and intrinsic articulation and the tooth slot structure in joint are supported mutually to engage Form fixed structure；The gear that returns the vehicle to the garage and knock off is connected with the steel cable that returns the vehicle to the garage and knock off, and the steel cable that above returns the vehicle to the garage and knock off is connect with the pull rod that returns the vehicle to the garage and knock off, and is drawn by returning the vehicle to the garage and knock off Bar tenses the steel cable that the returns the vehicle to the garage and knock off gear that makes to return the vehicle to the garage and knock off and is detached to form rotary structure with support joint；

The lower end of the handle assembly is connected with extrinsic articulation, tooth slot structure is also equipped in extrinsic articulation, in support joint and extrinsic articulation Between be equipped with commutation spring and tumbler gear, commutation spring compression tumbler gear makes tumbler gear and supports joint and extrinsic articulation Tooth slot structure, which mutually engages, forms fixed structure；Tumbler gear is connected with commutation steel cable, adjusts steel cable and is connected with commutation sliding sleeve, Commutation cunning is set on handle assembly, and tensing commutation steel cable by the sliding sleeve that commutates makes tumbler gear be detached from support joint, shape It can integrally rotated angle adjustment mechanism at handle assembly；

There is the fixing axle for installing the gear that returns the vehicle to the garage and knock off, return the vehicle to the garage and knock off spring and the geared sleeve that returns the vehicle to the garage and knock off are set to the fixing axle in the intrinsic articulation On, and the gear that returns the vehicle to the garage and knock off will return the vehicle to the garage and knock off spring compression in intrinsic articulation；Under the extruding for the spring that returns the vehicle to the garage and knock off, return the vehicle to the garage and knock off gear while in being pressed on In joint, the tooth for the gear that returns the vehicle to the garage and knock off engages to form housing portion and mounting branch with the tooth slot structure in intrinsic articulation and support joint simultaneously The fixed structure of stay tube；Extrinsic articulation is also coaxially fixed in the fixing axle, and tumbler gear and commutation spring are then sheathed on extrinsic articulation In fixing axle between support joint.

3. according to claim 1 facilitate the children trolley that folding folds, it is characterised in that：The hypozygal with fold It is coaxially connected by a fixing axle between gear, upper joint, adjustment gear and socket joint, it collapsible spring and folds geared sleeve and is set to In the fixing axle, and folds gear and collapsible spring is pressed in hypozygal；Under the extruding of collapsible spring, gear is folded simultaneously Be pressed in upper joint, fold gear tooth while engaging with the tooth slot structure in upper joint and hypozygal to be formed seat upper tube with The fixed structure of seat down tube；Adjustment spring and adjustment gear are then sheathed in the fixing axle between upper joint and socket joint.

4. according to claim 3 facilitate the children trolley that folding folds, it is characterised in that：Described fold in gear sets It is useful for folding the rope that steel cable passes through and passes through hole, fold steel cable and from the rope pass through hole and pass through to fold gear and take up and folding gear On；Fold steel cable front end have a columned rope gland, fold steel cable by the rope gland be stuck in hypozygal with Hypozygal forms a fixed connection structure；Be equipped in the adjustment gear for adjusting the hole of passing through that steel cable passes through, adjust steel cable from This passes through hole across adjustment gear and takes up in adjustment gear；The front end for adjusting steel cable has a columned gland, adjusts Section steel cable is stuck in upper joint by the gland and is formed a fixed connection structure with upper joint.

5. according to claim 1 facilitate the children trolley that folding folds, it is characterised in that：The block installation of returning the vehicle to the garage and knock off In seat down tube, fold steel cable penetrate and return the vehicle to the garage and knock off from seat down tube block connection；The regulation button is arranged in seat upper tube On, adjusting steel cable is penetrated from seat upper tube to be connect with regulation button.

6. according to claim 4 facilitate the children trolley that folding folds, it is characterised in that：One is equipped in upper joint Rope card division, rope card division are stretched out towards hypozygal side, will fold steel cable and be ejected towards hypozygal direction to neat with collapsible spring end Flat position.

7. according to claim 1 facilitate the children trolley that folding folds, it is characterised in that：Further include having a handrail group The both ends of part, armrest assembly are respectively equipped with armrest joint, and armrest assembly connects shape by the medial surface of armrest joint and hypozygal At rotary structure.

8. according to claim 3 facilitate the children trolley that folding folds, it is characterised in that：The gear that folds has One axle sleeve stretched out towards socket joint direction, the end of the axle sleeve, which has, folds gear buckle, and axle sleeve passes through upper joint to make to fold Gear buckle clasps adjustment gear to form linkage structure.

9. according to claim 1 facilitate the children trolley that folding folds, it is characterised in that：It is fixed in fixed seat One rod shaft, the pull rod that returns the vehicle to the garage and knock off are mounted on the rod shaft, and pull rod torsional spring is arranged on rod shaft, and pull rod one end connects Car pull bar is received, other end connection fixing base forms the self-return structure for the pull rod that returns the vehicle to the garage and knock off.