CN207565661U - Children trolley - Google Patents

Abstract

The utility model discloses a kind of children trolleys,Its stroller frame includes push-rod frame,Fore-stock and after-poppet,The bottom of fore-stock is equipped with front component,The bottom of after-poppet is equipped with wheel assembly,The upper end of fore-stock,It is pivotally connected together each other by cradle head between the upper end of after-poppet and the lower end of push-rod frame,Front component includes being set on the front-wheel connector that fore-stock is rotatablely connected around front steering axis,Front-wheel orientation assemblies are equipped between fore-stock and front-wheel connector,Wheel assembly includes the trailing wheel connector being rotatablely connected with after-poppet around rear steering axis,Trailing wheel orientation assemblies are equipped between after-poppet and trailing wheel connector,Front-wheel orientation assemblies are respectively provided with reverse blocking state state capable of free rotation and the directional lock state of steering locking with trailing wheel orientation assemblies,Driving sliding block is equipped in cradle head,Rotation when being commutated by push-rod frame drives the slip of driving sliding block that can automatically realize to preceding,Trailing wheel directional lock and the conversion of reverse blocking state state.

Description

Children trolley

Technical field

The utility model is related to the children trolleys that a kind of children trolley more particularly to a kind of push rod are capable of reversing.

Background technology

Carry out different from what is reversely carried out needs to meet operator's forward direction, the push rod of children trolley is usually arranged as interchangeable To structure, after push rod direction-changing, need again to be oriented front-wheel and trailing wheel respectively unlock and locking, so that cart is carried out On direction front wheel is capable of free rotation and the wheel at rear is orientation state, to ensure the normally travel of cart.Existing skill In art, although there are also front-wheel orientation assemblies and trailing wheel orientation assemblies are provided on children trolley, and by push rod direction-changing Automatically driven during operation front-wheel orientation assemblies and trailing wheel orientation assemblies automatically directional lock and reverse blocking state state it Between change, but its structure is varied, certain structures are complex in setting, and then there are operational stabilities etc. to ask for some Topic affects the whole performance of cart.

Invention content

The purpose of this utility model, which is to provide a kind of push-rod frame, can commutate and can be automatically right during commutation Front and rear wheel component is oriented the children trolley of locking or reverse blocking state.

In order to achieve the above objectives, the technical solution adopted in the utility model is：A kind of children trolley, including having expansion shape The stroller frame of state and folded state, the stroller frame include push-rod frame, fore-stock and after-poppet, the bottom of the fore-stock Equipped with front component, the bottom of the after-poppet is equipped with wheel assembly, the upper end of the fore-stock, the upper end of after-poppet and It is pivotally connected together each other by cradle head between the lower end of the push-rod frame, the front component includes setting Front-wheel is equipped between the front-wheel connector that the fore-stock is rotatablely connected around front steering axis, the fore-stock and the front-wheel connector Orientation assemblies, the wheel assembly include the trailing wheel connector being rotatablely connected with the after-poppet around rear steering axis, the after-poppet Trailing wheel orientation assemblies are equipped between the trailing wheel connector, the front-wheel orientation assemblies are respectively provided with trailing wheel orientation assemblies can be certainly By the reverse blocking state state and the directional lock state of steering locking turned to,

The driving sliding block that slip is driven when being rotated by the push-rod frame is equipped in the cradle head, the driving sliding block is slided It is set on the upper end of the fore-stock or the upper end of the after-poppet dynamicly, when the stroller frame is in unfolded state, There is the push-rod frame the positive operating position of updip extension from front to back and updip from back to front to extend in its rotational travel Reverse operation position,

When the push-rod frame is in the positive operating position, the driving sliding block matches with the trailing wheel orientation assemblies It closes and the trailing wheel orientation assemblies is made to be in directional lock state, the wheel assembly is in orientation state, the front-wheel at this time Orientation assemblies are detached from cooperation with the driving sliding block and are in reverse blocking state state, and the front component is in universal shape at this time State；When the push-rod frame is in the reverse operation position, it is described driving sliding block matched with the front-wheel orientation assemblies and The front-wheel orientation assemblies is made to be in directional lock state, the front component is in orientation state, the trailing wheel orientation at this time Component is detached from cooperation with the driving sliding block and is in reverse blocking state state, and the wheel assembly is in universal state at this time.

Preferably, when the stroller frame is in unfolded state and the push-rod frame is positioned at the positive operating position and instead Centre position between operating position constantly, the front-wheel orientation assemblies, trailing wheel orientation assemblies respectively with the driving sliding block It is separated respectively in reverse blocking state state, the front-wheel orientation assemblies, trailing wheel orientation assemblies are in universal state.

Preferably, the front-wheel orientation assemblies include to be arranged on towards or away from the front-wheel joint motion described The preceding directional of fore-stock bottom, for provide the preceding directional towards the front-wheel joint motion trend preceding orientation elasticity It is part, the front-slider being set on the fore-stock up and down along the length extending direction of the fore-stock, described for providing Front-slider moves upwards the preceding locking elastic part of trend and connects before being connected between the preceding directional and the front-slider Fitting, the front-wheel connector are equipped with the preceding guide slot being fittingly inserted into for the preceding directional；

The trailing wheel orientation assemblies include that the after-poppet can be arranged on towards or away from the trailing wheel joint motion The rear directional of bottom, for provide it is described after rear orientation elastic component of the directional towards the trailing wheel joint motion trend, edge The length extending direction of the after-poppet is set on rear slider on the after-poppet, for providing the rear slider up and down It moves upwards the rear locking elastic part of trend and connects the rear connectors between directional and the rear slider in the rear, The trailing wheel connector is equipped with the rear guide slot being fittingly inserted into for the rear directional,

When the push-rod frame is in the positive operating position, the driving sliding block is resisted against on the rear slider and makes Its downlink, the rear directional ordinatedly plug in guide slot in the rear and the trailing wheel orientation assemblies are made to be in directional lock State, the driving sliding block are separated with the front-slider；When the push-rod frame is in the reverse operation position, the drive Movable slider is resisted against on the front-slider and makes its downlink, and the preceding directional is ordinatedly plugged in the preceding guide slot and makes The front-wheel orientation assemblies are in directional lock state, and the driving sliding block is separated with the rear slider.

Further, the upper end of the fore-stock is equipped with preceding protrusion, and the upper end of the after-poppet is equipped with rear protrusion, When the fore-stock and after-poppet are mutually drawn close, the preceding protrusion is pressed on the rear slider, the rear protrusion is pressed on On the front-slider, respectively so that the trailing wheel orientation assemblies, front-wheel orientation assemblies are in directional lock state.

Preferably, the lower end of the push-rod frame and the first rotary centerline of spaced winding phase of the upper end of the after-poppet turn Dynamic connection, the upper end of the after-poppet and the second rotary centerline of spaced winding of the upper end of the fore-stock rotatedly connect It connects, first rotary centerline, the second rotary centerline are mutually parallel or collinearly extend, and the driving sliding block is around described second Rotary centerline is rotatably set on the upper end of the fore-stock or the upper end of the after-poppet.

Further, the driving sliding block has the first restraining position and the second restraining position on its sliding path, when When the push-rod frame is in the positive operating position, the driving sliding block is in first restraining position；When the push rod When frame is in the reverse operation position, the driving sliding block is in second restraining position.

Further, the lower end of the push-rod frame, which is additionally provided with, can rotate with it and can drive sliding block phase with described The commutation locating part of cooperation, it is described when the push-rod frame is between the positive operating position and the reverse operation position Commutation locating part matches with the driving sliding block and the driving sliding block is driven when the push-rod frame rotates described first It is slided between restraining position and second restraining position；When the push-rod frame is from the positive operating position to the after-poppet Rear side rotation collapse when and the push-rod frame from front side from the reverse operation position to the fore-stock rotation collapse When, it is detached from and coordinates between the commutation locating part and the driving sliding block.

Further, the commutation locating part is slidably set on institute along the direction for being parallel to first rotary centerline It states on push-rod frame, the end of the commutation locating part towards the driving sliding block is equipped with spacing block set, described to drive on sliding block With the guide chute slipped fit inserted into for the spacing block set, the spacing block set can ordinatedly be plugged in described lead It can slide into sliding slot and along the guide chute.

As a kind of specific embodiment, it is equipped in the cradle head for by the push-rod frame and the after-poppet First lock construction of mutually locking and the unlock piece for first lock construction to be unlocked, the unlock piece include slidably setting The solution lock slide on the push-rod frame is put, the glide direction of the solution lock slide is perpendicular to first rotary centerline, institute It states solution lock slide and is equipped with driving inclined-plane, the commutation locating part is equipped with cooperation inclined-plane, when the solution lock slide slides along When direction moves and makes first lock construction continue to slide after unlocking, the driving inclined-plane matches with the cooperation inclined-plane and merges The commutation locating part is driven far from the driving slide block movement.

As a kind of specific embodiment, it is additionally provided with described to prop up the fore-stock afterwards in the cradle head The second lock construction that frame mutually locks, when stroller frame expansion and the push-rod frame is in the positive operating position and reversed work When making to rotate between position, second lock construction keeps locking；When the push-rod frame is from the positive operating position to described When after-poppet rotates and the push-rod frame from the reverse operation position to the fore-stock rotate when, the push-rod frame revolves Second lock construction is driven to unlock when turning.

Due to the utilization of above-mentioned technical proposal, the utility model has following advantages compared with prior art：This practicality is new The children trolley of type, simple for structure, the switch operation of push-rod frame is convenient and simple, and push-rod frame can also be automatic in switch operation Realize the conversion of the directional lock and reverse blocking state state to front component and wheel assembly, commutation and front and rear wheel orientation lock in ground Fixed or reverse blocking state operation is all very convenient.

Meanwhile the children trolley of the utility model is in switch operation, by push-rod frame rotate to positive operating position with it is anti- During position between operating position, front component is in universal state with wheel assembly, this causes user in switch operation When can stand on original place and rotate integrally stroller frame, realize switch operation without going to opposite side, be more convenient for The daily switch operation of user, brings great convenience for user.

Description of the drawings

Attached drawing 1 is the stereogram of the children trolley forward direction unfolded state of the utility model once；

Attached drawing 2 is the side view of attached drawing 1；

Attached drawing 3 is the side view under the children trolley forward direction unfolded state two of the utility model；

Attached drawing 4 is the side view under the children trolley forward direction unfolded state three of the utility model；

Attached drawing 5 is the side view of the reversed unfolded state of children trolley of the utility model once；

Attached drawing 6 is the side view under the reversed unfolded state two of children trolley of the utility model；

Attached drawing 7 is the side view under the reversed unfolded state three of children trolley of the utility model；

Attached drawing 8 is the stereogram in the children trolley commutation process of the utility model；

Attached drawing 9 is the side view of attached drawing 8；

Side view when attached drawing 10 is the children trolley forward folded of the utility model under semi-collapsed condition；

Side view when attached drawing 11 is the children trolley forward folded of the utility model under folded state；

Side view of the attached drawing 12 for the children trolley of the utility model semi-collapsed condition one when reverse folded；

Side view of the attached drawing 13 for the children trolley of the utility model semi-collapsed condition two when reverse folded；

Side view of the attached drawing 14 for the children trolley of the utility model when reverse folded under folded state；

Stereogram of the attached drawing 15 for the children trolley of the utility model when reverse folded under folded state；

Rearview of the attached drawing 16 for the children trolley of the utility model when reverse folded under folded state；

Attached drawing 17 be along attached drawing 16 M-M to schematic cross-sectional view；

Attached drawing 18 is the structural decomposition diagram one of cradle head used on the children trolley of the utility model；

Structural decomposition diagram two of the attached drawing 19 for the cradle head of attached drawing 18；

Stereogram of the attached drawing 20 to solve lock slide in the cradle head of attached drawing 18；

Stereogram one of the attached drawing 21 for the first unlock actuator in the cradle head of attached drawing 18；

Stereogram two of the attached drawing 22 for the first unlock actuator in the cradle head of attached drawing 18；

Attached drawing 23 is base portion in the cradle head of attached drawing 18 and solution lock slide and the mating schematic diagram for the locating part that commutates；

Partial schematic sectional view of the attached drawing 24 for the stroller frame of the children trolley of the utility model；

Attached drawing 25 is P portions enlarged diagram in attached drawing 24；

The side view of cradle head when attached drawing 26 is opened for stroller frame forward direction；

Attached drawing 27 be along attached drawing 26 A-A to section view enlarged structure schematic diagram；

Attached drawing 28 is the transverse cross sectional enlarged diagram of attached drawing 26；

Attached drawing 29 is the mating relation schematic diagram of driving sliding block and front-slider and rear slider in attached drawing 28；

The side view of cradle head when attached drawing 30 is in commutation centre position for stroller frame；

Attached drawing 31 is the B-B direction schematic cross-sectional view along attached drawing 30；

Attached drawing 32 is the transverse cross sectional schematic diagram of attached drawing 30；

The side view of cradle head when attached drawing 33 is stroller frame reverse opening；

Attached drawing 34 be along attached drawing 33 C-C to schematic cross-sectional view；

Attached drawing 35 be along attached drawing 34 D-D to schematic cross-sectional view；

Attached drawing 36 be along attached drawing 34 E-E to schematic cross-sectional view；

The side view of cradle head when attached drawing 37 is in forward folded position for stroller frame；

Attached drawing 38 is along the F-F of attached drawing 37 to sectional structure enlarged diagram；

Attached drawing 39 is the transverse cross sectional schematic diagram of attached drawing 37；

The side view of cradle head when attached drawing 40 is in reverse folded position for stroller frame；

Attached drawing 41 is the transverse cross sectional schematic diagram of attached drawing 40；

Wherein：100th, stroller frame；10th, after-poppet（First bar）；101st, first connecting portion；101a, rear protrusion；10a, Two locked grooves；10b, third locked groove；10c, perforation；20th, fore-stock（Second bar）；201st, second connecting portion；201a, preceding protrusion； 20a, the 4th locked groove；202nd, pedestal；30th, push-rod frame（Pedestal bar）；301st, base portion；30a, the first locked groove；40th, front component； 401st, front-slider；402nd, preceding locking elastic part；403rd, front connector；50th, wheel assembly；501st, rear slider；502nd, bullet is locked afterwards Property part；503rd, rear connectors；504th, rear steering axis；505th, trailing wheel connector；506th, rear directional（Orienting pin afterwards）；507th, rear orientation Elastic component；200th, cradle head；300th, seat pocket frame；3001st, the first railing；3002nd, the second railing；3003rd, handrail；3004、 Link；400th, seat pocket cradle head；123rd, shaft；1st, the first locking fluted disc；1a, the first lock tooth；1b, perforation；2nd, the first lock Elastic component；3rd, the first unlock actuator；31st, be slidably matched portion；32nd, guiding surface；33rd, the second unlock inclined-plane；4th, the second locking Fluted disc；41st, the second lock tooth；5th, the second lock elastic component；6th, the second unlock actuator；61st, protrusion is unlocked；7th, sliding block is driven；71st, it leads To sliding slot；72nd, end is driven；73rd, cotter way is limited；8th, commutate locating part；81st, spacing block set；82nd, coordinate inclined-plane；9th, lock slide is solved； 91st, the first unlock inclined-plane；92nd, limit sliding chutes；93rd, driving inclined-plane.

Specific embodiment

The technical solution of the utility model is further elaborated in the following with reference to the drawings and specific embodiments.

Referring to the children trolley shown in Fig. 1 to Figure 16, including the stroller frame 100 with unfolded state and folded state With folding seat pocket frame 300, stroller frame 100 includes push-rod frame 30, fore-stock 20 and after-poppet 10, the bottom of fore-stock 20 Equipped with front component 40, the bottom of after-poppet 10 is equipped with wheel assembly 50, preceding on every side of 100 left and right sides of stroller frame Between the lower end of the upper end of stent 20, the upper end of after-poppet 10 and push-rod frame 30 by cradle head 200 each other It is pivotally connected together.

When stroller frame 100 is in unfolded state, push-rod frame 30 has in its rotational travel on gradual from front to back Incline the positive operating position of extension, the reverse operation position extended as shown in Figures 1 to 4 and from back to front, such as Fig. 5 to Fig. 7 institutes Show.The stroller frame 100 in folded state there is push-rod frame 30 to collapse in the forward folded position of 10 rear side of after-poppet（Such as Figure 11, shown in 12）It is collapsed with push-rod frame 30 in the reverse folded position of 20 front side of fore-stock（As shown in Figure 12 to Figure 16）.

Referring to shown in Fig. 1 to Figure 16, two groups of front components 40 and two groups of wheel assemblies 50 are universal wheel component, wherein, Shown in Figure 17, wheel assembly 50 includes the trailing wheel connector 505 being rotatablely connected with after-poppet 10 around rear steering axis 504, rear to prop up Trailing wheel orientation assemblies are equipped between frame 10 and trailing wheel connector 505, which has reverse blocking state capable of free rotation The directional lock state of state and steering locking.Similarly, not shown, front component 40 is included with fore-stock 20 around front steering axis The front-wheel connector of rotation connection, is equipped with front-wheel orientation assemblies between fore-stock 20 and front-wheel connector, which also has There are reverse blocking state state capable of free rotation and the directional lock state of steering locking.

The driving sliding block that slip is driven when being rotated by push-rod frame 30 is equipped with referring to shown in Figure 18, Figure 19, in cradle head 200 7, the driving sliding block 7 is slidably set on the upper end of fore-stock 20 or the upper end of after-poppet 10, when push-rod frame 30 is in forward direction During operating position, driving sliding block 7 matches with trailing wheel orientation assemblies and is at directional lock state, drives sliding block 7 at this time Cooperation is detached from front-wheel orientation assemblies and is at reverse blocking state state；And when push-rod frame 30 is in reverse operation position, Driving sliding block 7 matches with front-wheel orientation assemblies and is at directional lock state, drives sliding block 7 and trailing wheel orientation group at this time Part is detached from cooperation and is at reverse blocking state state.

Front-wheel orientation assemblies, the concrete structure of trailing wheel orientation assemblies are illustrated in detail below and its are matched with driving sliding block 7 And realize the operation principle of directional lock and reverse blocking state：

In the present embodiment, shown in Figure 17, which includes can be towards or away from trailing wheel connector 505 It is arranged on the rear directional 506 of 10 bottom of after-poppet, is moved for directional after offer 506 towards trailing wheel connector 505 to movement The rear orientation elastic component 507 of trend offers the rear guide slot being fittingly inserted into for rear directional 506 on trailing wheel connector 505. Here, it is positioning pin that rear directional 506, which uses, and it is spring that rear orientation elastic component 507, which uses,.Referring to shown in Figure 32, trailing wheel Orientation assemblies further include the rear slider 501 being set on up and down on after-poppet 10 along the length extending direction of after-poppet 10, use The rear locking elastic part 502 of trend is moved upwards in offer rear slider 501 and is connected to rear directional 506 and rear slider 501 Between rear connectors 503, herein, rear connectors 503 are hauling rope, rear locking elastic part 502 also for spring, and after lock bullet Property part 502 elastic force be more than after orient elastic component 507 elastic force.In this way, when no external force acts on, rear slider 501 is rear Have the tendency that under the action of locking elastic part 502 along 10 uplink of after-poppet, and pass through rear connectors 503 and put forward rear directional 506 It draws so that guide slot after rear directional 506 is detached from, so that trailing wheel orientation assemblies are in reverse blocking state state, wheel assembly 50 is capable of free rotation；And when having external force to act on rear slider 501 it is made to move downward along after-poppet 10, rear connectors 503 are released The drawing of directional 506 after being rivals in a contest, rear directional 506 then coordinate downwards under the action of the elastic force of rear orientation elastic component 507 Ground be inserted into after in guide slot so that trailing wheel orientation assemblies switch to directional lock state, at this time wheel assembly 50 can not turn to and only It can be rotationally advancing along single direction.

Similarly, not shown, front-wheel orientation assemblies include that preceding branch can be arranged on towards or away from front-wheel joint motion The preceding directional of 20 bottom of frame, for directional before providing towards the preceding orientation elastic component of front-wheel joint motion trend, front-wheel connects The preceding guide slot being fittingly inserted into for preceding directional is offered on head.Herein, preceding directional use also for positioning pin, it is preceding fixed Used to elastic component is spring.Prolong referring to shown in Figure 28,32,36, front-wheel orientation assemblies are further included along the length of fore-stock 20 Stretch front-slider 401 that direction is set on up and down on fore-stock 20, for providing the preceding lock that front-slider 401 moves upwards trend Front connector 403 before determining elastic component 402 and being connected between directional and front-slider 401, herein, front connector 403 For hauling rope, preceding locking elastic part 402 is also spring, and the elastic force of preceding locking elastic part 502 is more than preceding orientation elastic component Elastic force.Equally similarly, when no external force acts on front-slider 401, front-wheel orientation assemblies are in reverse blocking state state；When having When external force presses downwards front-slider 401, front-wheel orientation assemblies switch to directional lock state.

Join shown in each attached drawing, in the present embodiment, the spaced winding first of the lower end of push-rod frame 30 and the upper end of after-poppet 10 Rotary centerline rotatedly connects, the second rotary centerline of spaced winding of the upper end of after-poppet 10 and the upper end of fore-stock 20 It rotatedly connects, above-mentioned first rotary centerline is mutually parallel with the second rotary centerline or collinearly extends.In the present embodiment In, above-mentioned first rotary centerline and the second rotary centerline be conllinear extension, i.e. the lower end of push-rod frame 30, after-poppet 10 The same rotary centerline of the spaced winding of upper end and the upper end of fore-stock 20 is mutually pivotally connected together, and is passed through between three Cradle head 200 is rotatablely connected.Drive sliding block 7 around the second rotary centerline rotatably set on after-poppet 10 upper end or The upper end of fore-stock 20 drives sliding block 7 to be arranged on the upper end of after-poppet 10 herein.

In the present embodiment, the driving sliding block 7 have on 10 upper edge of after-poppet its sliding path the first restraining position with Second restraining position, when push-rod frame 30 is in positive operating position, driving sliding block 7 is located at the first restraining position；Work as push-rod frame 30 be in reverse operation position when, driving sliding block 7 be located at the second restraining position.

Referring to shown in Figure 18,19 and 28,29, the both ends of driving sliding block 7 for respectively with 501 phase of front-slider 401 and rear slider Two driving ends 72 of cooperation, when driving sliding block 7 slides between the first restraining position and the second restraining position, drive sliding block 7 Two driving ends 72 can respectively be matched with the rear slider 501 in after-poppet 10 or the front-slider 401 in fore-stock 20 It closes, so as to apply rear slider 501 or the downward active force of front-slider 401.

Herein, it referring to shown in Fig. 1 to 4 and Figure 26,28, Figure 29, when push-rod frame 30 is in positive operating position, drives One of driving end 72 is resisted against on rear slider 501 and makes its downlink on movable slider 7 so that rear directional 506 is ordinatedly inserted It is located in rear guide slot and so that trailing wheel orientation assemblies are in directional lock state, drive another driving end on sliding block 7 at this time 72 are separated with front-slider 401 so that front-wheel orientation assemblies are in reverse blocking state state, also that is, push-rod frame 30 is in positive work When making position, front component 40 is capable of free rotation, and wheel assembly 50 is then directed locking and can not turn to.

On the contrary, referring to shown in Fig. 5,6,7 and Figure 33,36, when push-rod frame 30 is in reverse operation position, sliding block is driven 7 another above-mentioned driving end 72 is resisted against on front-slider 401 and makes its downlink so that preceding directional is fixed before being ordinatedly plugged in Cause that front-wheel orientation assemblies are in directional lock state, drive sliding block 7 to be separated with rear slider 501 at this time into slot so that Trailing wheel orientation assemblies are in reverse blocking state state, and also that is, when push-rod frame 30 is in reverse operation position, wheel assembly 50 can be free It turns to, front component 40 is then directed locking and can not turn to.

And when push-rod frame 30 is located at the centre position between positive operating position and reverse operation position, referring to Fig. 8,9, 30th, shown in 32, driving sliding block 7 is between the first restraining position and the second restraining position, and the driving sliding block 7 and front-slider 401st, rear slider 501 is detached from respectively so that front-wheel orientation assemblies are respectively at reverse blocking state state with trailing wheel orientation assemblies, accordingly Ground front component 40 and wheel assembly 50 are the state freely turned to.In this way, during switch operation is carried out, by push rod When frame 30 is rotated to centre position between positive operating position and reverse operation position, front component 40 is equal with wheel assembly 50 In universal state, user can stand on original place and rotate integrally stroller frame 100, without go to opposite side and reality Existing switch operation, the daily switch operation for the user that is more convenient for.

In the present embodiment, driving sliding block 7 is in the slip on the upper end of after-poppet 10 and when being rotated by push-rod frame 30 Driving realize in the following way：Referring to shown in Figure 18,19, the lower end of push-rod frame 30 is additionally provided with and can rotate with it It and can be with the matched commutation locating part 8 of driving sliding block 7.Under 100 unfolded state of stroller frame, when push-rod frame 30 is in positive work When making between position and reverse operation position, which matches, and with driving sliding block 7 when push-rod frame 30 rotates Commutation locating part 8 drives driving sliding block 7 to be slided between the first restraining position and the second restraining position；When push-rod frame 30 is in just During to operating position, driving sliding block 7 is in the first restraining position, as shown in figure 28；When push-rod frame 30 is in reverse operation position When, driving sliding block 7 is then in the second restraining position, as shown in figure 32.

Specifically, referring to shown in Figure 18,19 and 29, being set on driving sliding block 7, there are two limiting cotter way 73, two limiting cotter ways Spacer pin is respectively equipped in 73（It is not shown in figure）, first connecting portion 101 is in corresponding first restraining position and the second restraining position Place is also provided with there are two cotter way, and driving sliding block 7 drives spacer pin to slide together, works as limiting when being slided in first connecting portion 101 When pin is fallen into along single direction in the cotter way in first connecting portion 101, driving sliding block 7 is accordingly limited in corresponding position Position.

When cooperation between above-mentioned commutation locating part 8 and driving sliding block 7 is yet formed simultaneously to the rotation commutation of push-rod frame 30 The push rod limit assembly limited, rotational angle when can effectively commutate in this way to push-rod frame 30 limits, to prevent Its is offside, the convenience of comfort and operation when ensureing the forward and reverse implementation of cart.

It is additionally provided in cradle head 200 and is tied for the limiting that commutation locating part 8 coordinates with sliding block 7 is driven to be detached to be driven to unlock Structure, when stroller frame 100 is converted from unfolded state to folded state, i.e., push-rod frame 30 is from positive operating position to after-poppet 10 Rear side rotation collapse when and push-rod frame 30 from front side from reverse operation position to fore-stock 20 rotation collapse when, it is above-mentioned Limiting unlocking structure, which drives to be detached between commutation locating part 8 and driving sliding block 7, to be coordinated, so that push-rod frame 30 can be with fore-stock 20 or the rotation of after-poppet 10 collapse and realize the folding of stroller frame 100.To further illustrate above-mentioned limiting unlocking structure Concrete structure and push-rod frame 30 such as commutate and fold at the operation principle of the courses of work, are used in the present embodiment described in detail below The structure of cradle head 200：

The cradle head 200 be used for including the pedestal bar with base portion, the first bar with first connecting portion and with The rotation connection of this three cradling pieces of second bar of second connecting portion, in the present embodiment, referring to shown in Figure 18 to Figure 41, pedestal bar It is accordingly push-rod frame 30, the first bar is after-poppet 10, and the second bar is fore-stock 20.Correspondingly, the lower end of push-rod frame 30 is Base portion 301, the upper end of after-poppet 10 is first connecting portion 101, and the upper end of fore-stock 20 is second connecting portion 201, on Base portion 301, first connecting portion 101 and the second connecting portion 201 stated are rotatablely connected by shaft 123, surround shaft jointly 123 axial line is pivotally connected to together.

It is equipped with to interlock base portion 301, first connecting portion 101 and 201 phase of second connecting portion in the cradle head 200 Fixed locking mechanism, the locking mechanism are included for by the first lock construction of base portion 301 and 101 mutually locking of first connecting portion With for by the second lock construction of first connecting portion 101 and 201 mutually locking of second connecting portion.When push-rod frame 30 works in forward direction When being rotated between position and reverse operation position, the unlock of the first lock construction and the holding locking of the second lock construction keep cart vehicle Frame 100 is in expansion and stablizes the switch operation of progress push-rod frame 30 in the state of carrying；And when push-rod frame 30 is worked by forward direction Position to after-poppet 10 rotate when and push-rod frame 30 from reverse operation position to fore-stock 10 rotate when, push-rod frame 30 drives Second lock construction unlock, so as to fulfill stroller frame 100 forward folded with reverse folded, wherein, commutation locating part 8 with drive Unlock of the cooperation prior to the second lock construction is detached between sliding block 7.

Specifically, referring to Figure 18, Figure 19, shown in Figure 26 to Figure 41, the first lock construction includes prolonging along the axial line of shaft 123 Direction is stretched slidably to lock fluted disc 1 set on first between base portion 301 and first connecting portion 101, lock for providing first First lock elastic component 2 of elastic force needed for fluted disc 1 towards 301 tendency toward sliding of base portion, first locks in the outside circumference of fluted disc 1 With the multiple first lock tooth 1a, base portion 301 is equipped with and above-mentioned multiple first lock matched multiple first locked grooves of tooth 1a 30a, first connecting portion 101 are equipped with and the multiple first lock tooth matched multiple second locked groove 10a of 1a, the locking of the first lock construction When, multiple first lock tooth 1a are matched simultaneously with multiple first locked groove 30a, the second locked groove 10a, i.e., and the two of multiple first lock tooth 1a End is embedded in multiple first locked groove 30a and the second locked groove 10a with being respectively cooperating with so that push-rod frame 30 is locked with respect to after-poppet 10 It is fixed；And when the first lock construction unlocks, multiple first lock tooth 1a and multiple first locked groove 30a, which are detached from, to be coordinated, at this time push-rod frame 30 It 123 can be rotated around the shaft relative to after-poppet 10.

Second lock construction includes slidably being set on first connecting portion 101 and second along the axial line extending direction of shaft 123 Second between connecting portion 201 locks fluted disc 4, locks fluted disc 4 towards 101 tendency toward sliding institute of first connecting portion for providing second It needs the second of elastic force to lock elastic component 5, there is the multiple second lock teeth 41, the first connection in the outside circumference of the second locking fluted disc 4 Portion 101 be equipped with multiple second lock the matched multiple third locked groove 10b of tooth 41, second connecting portion 201 be equipped with it is multiple with The second lock matched multiple 4th locked groove 20a of tooth 41, when the second lock construction locks, the second lock tooth 41 is locked simultaneously with multiple thirds Slot 10b, the 4th locked groove 20a are matched so that opposite locking between fore-stock 20 and after-poppet 10；When the second lock construction unlocks When, multiple second lock teeth 41 are detached from multiple third locked groove 10b to be coordinated so that can opposite rotation between fore-stock 20 and after-poppet 10 Turn.

Actuator 6 is unlocked referring to the first unlock actuator 3 and second is equipped with shown in Figure 18, Figure 19, in cradle head 200, First unlock actuator 3 along shaft 123 axial line slide and can around the shaft 123 axial line rotatably be set on base portion 301 On, the first locking fluted disc 1 is resisted against on the first unlock actuator 3.It is additionally provided with that the first unlock is driven to be driven in cradle head 200 The solution lock slide 9 that moving part 3 slides, the solution lock slide 9 are slidably set in base portion 301, and the glide direction for solving lock slide 9 is vertical In the axial line of shaft 123, referring to shown in Figure 18,19,20,23, solution lock slide 9 is equipped with the first unlock inclined-plane 91, the first solution Actuator 3 is locked equipped with inclined-plane 33 is unlocked with the first unlock inclined-plane 91 matched second, and first unlocks when solution lock slide 9 moves Inclined-plane 91 matches with the second unlock inclined-plane 33 and the first unlock actuator 3 is driven to be slided along the axial line of shaft 123, so as to drive The first locking fluted disc 1 is made to overcome the elastic force of the first lock elastic component 2 and move far from base portion 301 and realize the first lock construction Unlock.

The axial line of second unlock actuator 6 along shaft 123 slide and can around the shaft 123 axial line be rotatably set on the On one connecting portion 101, the second locking fluted disc 4 is resisted against on the second unlock actuator 6, and the second unlock actuator 6 is equipped at least One unlock protrusion 61, it is to unlock protrusion 61 along 180 ° of two be spaced apart to set herein.As shown in Figure 21,22,35, the It is equipped with towards the side of first connecting portion 101 on one unlock actuator 3 and is slidably matched with what unlock protrusion 61 was slidingly fitted Portion 31 and guiding surface 32, correspondingly, the portion 31 that is slidably matched are also configured as two groups with guiding surface 32.When the second lock construction is in During unlocked state, unlock protrusion 61 is located at corresponding be slidably matched in portion 31；When unlock protrusion 61 is slided by the portion of being slidably matched 31 During to guiding surface 32, the second unlock actuator 6 slide and drive that the second locking fluted disc 4 is moved far from first connecting portion 101 and So that the second lock construction unlock.

Referring to shown in Figure 18, Figure 19, the above-mentioned limiting solution for driving commutation locating part 8 with sliding block 7 being driven to be detached from cooperation Lock construction is set between solution lock slide 9 and commutation locating part 8, and drives commutation locating part 8 de- by solving the slip of lock slide 9 From driving sliding block 7.

Specifically, referring to shown in each attached drawing, shown in especially Figure 18,19 and Figure 23, commutation locating part 8 is along being parallel to shaft The direction of 123 axial line is slidably set in base portion 301, and the end of commutation locating part 8 towards driving sliding block 7 is equipped with limit Position convex block 81, drives the guide chute 71 for having on sliding block 7 and being slipped fit inserted into for spacing block set 81, spacing block set 81 can It is ordinatedly plugged in guide chute 71 and can be slided along guide chute 71, when push-rod frame 30 rotates, when spacing block set 81 supports Driving sliding block 7 is just driven to continue to rotate together after gear to the side cell wall of guide chute 71, until driving sliding block 7 reaches the first limit Position position or the second restraining position.

Above-mentioned limiting unlocking structure includes being set on the driving inclined-plane 93 on solution lock slide 9 and on commutation locating part 8 Cooperation inclined-plane 82, when continuing to slide after solving lock slide 9 and sliding along direction movement and unlock the first lock construction, driving is oblique Face 93 matches with cooperation inclined-plane 82 and commutation locating part 8 is driven to be moved far from driving sliding block 7, so that on driving sliding block 7 Spacing block set 81 be detached from from guide chute 71, rotating push rod frame 30 again, commutation locating part 8 no longer drive driving sliding block at this time 7 slide.Folding unlock operation is crossed after positive operating position reaches for push-rod frame 30 during 100 forward folded of stroller frame and is propped up The rear side of frame 10 or for stroller frame it is reverse folded when push-rod frame 30 cross reverse operation position and reach 20 front side of fore-stock.

Referring to shown in Figure 28,32,36,39,41, being additionally provided with preceding protrusion 201a, first connecting portion in second connecting portion 201 Rear protrusion is correspondingly provided on 301（It is not shown in figure）, when stroller frame 100 folds, between fore-stock 20 and after-poppet 10 During relative rotation is drawn close, preceding protrusion 201a is gradually pressed on rear slider 501 and makes rear slider 501 along under after-poppet 10 Row, while rear protrusion is gradually pressed on front-slider 401 and makes front-slider 401 along 20 downlink of fore-stock, respectively so that trailing wheel is determined Directional lock state is in component and front-wheel orientation assemblies, when this so that stroller frame 100 folds, front component 40 and trailing wheel Component 50 is directed locking and can not turn to respectively, and stroller frame 100 is stood on certainly by front component 40 with wheel assembly 50 Ground, meanwhile, front component 40 and wheel assembly 50, all can be towards setting during front and rear wheel assembly locking in universal free position Fixed direction is swung, and so that the wheel body of front component 40 and wheel assembly 50 is in front and rear after stroller frame 100 folds The extension in direction so that fold after vehicle frame it is more beautiful with it is smooth.

To sum up, for the stroller frame 100 of the children trolley in unfolded state, push-rod frame 30 is with positive operating position and instead To operating position so that children trolley can realize that positive implementation is exercised with reverse push and use that push-rod frame 30 is grasped in switch operation Facilitate, and can be realized to front component 40 and wheel assembly 50 in directional lock and orientation while push-rod frame 30 commutates Automatic switchover between unlocked state, so that being always universal state positioned at the wheel assembly carried out on front side of direction and being located at and push away It is all orientation state that wheel assembly on rear side of line direction, which is, to meet needs when cart is carried out.The stroller frame of the children trolley 100 have forward folded position and reverse folded position when folding, so no matter push-rod frame be in positive operating position or Push-rod frame can be overturn and be carried out the folding of stroller frame towards side where user by reverse operation position, convenient The operation of user.

The stroller frame 100 only needs operation unlock operating parts in folding operation solution lock slide 9 to be driven to slide, and can make It obtains push-rod frame 30 to unlock, push-rod frame 30 continues to rotate automatically drive between fore-stock 20 and after-poppet 10 after unlocking to be solved Then 100 entirety of stroller frame is lifted and fore-stock 20 and after-poppet 10 can make automatically to relatively rotate and draw close realization by lock The folding of stroller frame 100, and front component 40 has automatically been converted to directional lock state with wheel assembly 50 simultaneously.It folds Children trolley structure afterwards is very compact, and occupied space is smaller, is convenient for carrying and stores.

In addition, the stroller frame 100 can be used when using in the deployed state with graft block pocket frame 300, seat pocket frame 300 is logical Seat pocket care frame is crossed in stroller frame 100, is collapsed when folding in the front side of fore-stock 20, such as Figure 10 to Figure 16 institutes Show.This pocket frame 300 has the peripheral frame frame of the first railing 3001 for including at least the connection that rotates and the second railing 3002, herein Peripheral frame frame further includes handrail 3003.Seat pocket care frame includes can the cooperate pedestal 202 of dismounting and link 3004, pedestal 202 regularly on the upper end of fore-stock 20, and the pedestal 202 upwardly extends and removable with the lower end of link 3004 It is coupled with unloading；The upper end of link 3004, the one end of the first railing 3001, the second railing 3002 one end and handrail 3003 one end is rotatedly linked together by seat pocket cradle head 400 and opens and collapse so as to relative rotation, with And the conversion of multiple working conditions.

Above-described embodiment is only the technical concepts and features for illustrating the utility model, and its object is to allow be familiar with technique Personage can understand the content of the utility model and implement according to this, can not the scope of protection of the utility model be limited with this. It is all according to the spirit of the present invention substantially equivalent change or modification for being made, should all cover the scope of protection of the utility model it It is interior.

Claims (10)

1. a kind of children trolley, including the stroller frame with unfolded state and folded state, the stroller frame includes push rod Frame, fore-stock and after-poppet, the bottom of the fore-stock are equipped with front component, and the bottom of the after-poppet is equipped with wheel assembly, Between the lower end of the upper end of the fore-stock, the upper end of after-poppet and the push-rod frame by cradle head each other It being pivotally connected together, the front component includes being set on the front-wheel connector that the fore-stock is rotatablely connected around front steering axis, Front-wheel orientation assemblies are equipped between the fore-stock and the front-wheel connector, the wheel assembly is included with the after-poppet around rear The trailing wheel connector of steering axes connection, is equipped with trailing wheel orientation assemblies, before described between the after-poppet and the trailing wheel connector Wheel orientation assemblies are respectively provided with the directional lock of reverse blocking state state capable of free rotation and steering locking with trailing wheel orientation assemblies State, it is characterised in that：

The driving sliding block that slip is driven when being rotated by the push-rod frame is equipped in the cradle head, the driving sliding block is slidably It is described when the stroller frame is in unfolded state set on the upper end of the fore-stock or the upper end of the after-poppet It is anti-that there is push-rod frame the positive operating position of updip extension from front to back to extend with updip from back to front in its rotational travel To operating position,

When the push-rod frame is in the positive operating position, the driving sliding block matched with the trailing wheel orientation assemblies and The trailing wheel orientation assemblies is made to be in directional lock state, the wheel assembly is in orientation state, the front-wheel orientation at this time Component is detached from cooperation with the driving sliding block and is in reverse blocking state state, and the front component is in universal state at this time；When When the push-rod frame is in the reverse operation position, the driving sliding block is matched with the front-wheel orientation assemblies and is made described Front-wheel orientation assemblies are in directional lock state, and the front component is in orientation state at this time, the trailing wheel orientation assemblies with The driving sliding block is detached from cooperation and is in reverse blocking state state, and the wheel assembly is in universal state at this time.

2. children trolley according to claim 1, it is characterised in that：When the stroller frame is in unfolded state and described Push-rod frame is located at centre position between the positive operating position and reverse operation position constantly, the front-wheel orientation assemblies, Trailing wheel orientation assemblies are separated with the driving sliding block and are respectively in reverse blocking state state respectively, the front-wheel orientation group Part, trailing wheel orientation assemblies are in universal state.

3. children trolley according to claim 1, it is characterised in that：The front-wheel orientation assemblies include can towards or it is remote The preceding directional of the fore-stock bottom is arranged on from the front-wheel joint motion, for providing the preceding directional towards institute State the preceding orientation elastic component of front-wheel joint motion trend, be set on up and down along the length extending direction of the fore-stock it is described Front-slider on fore-stock, for providing the preceding locking elastic part and be connected to described that the front-slider moves upwards trend Front connector between preceding directional and the front-slider, the front-wheel connector is equipped with to be fittingly inserted into for the preceding directional Preceding guide slot；

The trailing wheel orientation assemblies include that the after-poppet bottom can be arranged on towards or away from the trailing wheel joint motion Rear directional, for provide it is described after directional towards the rear orientation elastic component of the trailing wheel joint motion trend, along described The length extending direction of after-poppet is set on the rear slider, upward for providing the rear slider on the after-poppet up and down The rear locking elastic part of movement tendency and connection rear connectors between directional and the rear slider in the rear, it is described Trailing wheel connector is equipped with the rear guide slot being fittingly inserted into for the rear directional,

When the push-rod frame is in the positive operating position, the driving sliding block is resisted against on the rear slider and makes under it Row, the rear directional ordinatedly plug in guide slot in the rear and the trailing wheel orientation assemblies are made to be in directional lock shape State, the driving sliding block are separated with the front-slider；When the push-rod frame is in the reverse operation position, the driving Sliding block is resisted against on the front-slider and makes its downlink, and the preceding directional is ordinatedly plugged in the preceding guide slot and makes institute It states front-wheel orientation assemblies and is in directional lock state, the driving sliding block is separated with the rear slider.

4. children trolley according to claim 3, it is characterised in that：The upper end of the fore-stock is equipped with preceding protrusion, The upper end of the after-poppet is equipped with rear protrusion, and when the fore-stock is mutually drawn close with after-poppet, the preceding protrusion is pressed on On the rear slider, it is described after protrusion be pressed on the front-slider, respectively so that the trailing wheel orientation assemblies, front-wheel orientation group Part is in directional lock state.

5. children trolley according to any one of claims 1 to 4, it is characterised in that：The lower end of the push-rod frame with it is described The first rotary centerline of spaced winding of the upper end of after-poppet rotates connection, the upper end of the after-poppet and the fore-stock The second rotary centerline of spaced winding of upper end rotatedly connects, and first rotary centerline, the second rotary centerline are mutual Parallel or conllinear extension, it is described driving sliding block around second rotary centerline rotatably set on the fore-stock upper end or The upper end of the after-poppet.

6. children trolley according to claim 5, it is characterised in that：The driving sliding block has the on its sliding path One restraining position and the second restraining position, when the push-rod frame is in the positive operating position, the driving sliding block is in First restraining position；When the push-rod frame is in the reverse operation position, the driving sliding block is in described second Restraining position.

7. children trolley according to claim 6, it is characterised in that：The lower end of the push-rod frame is additionally provided with can be with it It rotates and the matched commutation locating part of sliding block can be driven with described, when the push-rod frame is in the positive operating position and institute When stating between reverse operation position, the commutation locating part drives sliding block to match and driven when the push-rod frame rotates with described The driving sliding block is made to be slided between first restraining position and second restraining position；When the push-rod frame is by described Positive operating position is rotated to the rear side of the after-poppet when collapsing and the push-rod frame is from the reverse operation position to institute When stating the front side rotation gathering of fore-stock, it is detached from and coordinates between the commutation locating part and the driving sliding block.

8. children trolley according to claim 7, it is characterised in that：The commutation locating part edge is parallel to described first turn The direction of dynamic center line is slidably set on the push-rod frame, and the commutation locating part is towards setting on the end of the driving sliding block There is spacing block set, there is the guide chute slipped fit inserted into for the spacing block set, the limiting on the driving sliding block Convex block can ordinatedly be plugged in the guide chute and can be slided along the guide chute.

9. children trolley according to claim 8, it is characterised in that：It is equipped in the cradle head for by the push rod Unlock piece of the frame with the first lock construction of the after-poppet mutually locking and for first lock construction to be unlocked, the unlock Part includes the solution lock slide being slidably arranged on the push-rod frame, and the glide direction of the solution lock slide is perpendicular to described first Rotary centerline, the solution lock slide are equipped with driving inclined-plane, and the commutation locating part is equipped with cooperation inclined-plane, when the unlock When sliding block slides along direction movement and makes first lock construction continue to slide after unlocking, the driving inclined-plane and the cooperation Inclined-plane, which matches to merge, drives the commutation locating part far from the driving slide block movement.

10. children trolley according to claim 9, it is characterised in that：It is additionally provided in the cradle head for by described in The second lock construction that fore-stock is mutually locked with the after-poppet, when stroller frame expansion and the push-rod frame is in the forward direction When being rotated between operating position and reverse operation position, second lock construction keeps locking；When the push-rod frame by it is described just To operating position to the after-poppet rotate when and the push-rod frame rotated from the reverse operation position to the fore-stock When, the push-rod frame drives second lock construction to unlock when rotating.