CN209479739U - A kind of children trolley - Google Patents

Abstract

The utility model discloses a kind of children trolleys, including the vehicle frame with unfolded state and folded state；Vehicle frame includes the lateral frame being connected between side stand component；Lateral frame includes at least one stull component, stull component includes two singletrees for being respectively provided with inner end and outer end, the inner end of two singletrees rotates connection, the outer end of one of singletree and one of side stand component rotate connection, and the outer end of another singletree and another side stand component rotate connection；Stull component further includes for making two singletrees mutually rotate the inner link drawn close, the one end and side stand component of inner link are slidably and rotatably connected can accordingly move with the expansion or folding of side stand component, and the other end of inner link and singletree rotate connection to drive singletree to rotate.Volume after folding is small and exquisite while the children trolley is easy to operate.

Description

A kind of children trolley

Technical field

The utility model relates to articles for children field, in particular to a kind of children trolley.

Background technique

Children trolley be widely used in children trip, and greatly facilitate children trip, but children trolley carry or When storage, usually faces entire car body and occupy the larger problem of volume.In order to solve this problem, current children trolley is universal It with folder function, carries or stores after capable of folding, be especially capable of the cart of lateral secondary folding, volume is smaller.

At present can laterally secondary folding children trolley in, generally use ten be made of two cross one another connecting rods Word support component is rolled over to connect the side stand component of two sides although then the children trolley of this structure can be convenient for folding The volume of poststack is still larger, carries and storage is still not convenient enough, folded children trolley, which has, further reduces volume Space.

Utility model content

In view of the above problems, the object of the present invention is to provide a kind of children trolleys, fold while easy to operate Compact afterwards.

In order to achieve the above objectives, the utility model adopts the following technical solution:

A kind of children trolley, including with unfolded state and folded state vehicle frame, be set in front of the bottom of frame Front-wheel and be set to the rear-wheel at the bottom of frame rear；The vehicle frame is including at least two side stand components and is connected to institute State the lateral frame between side stand component；

The lateral frame includes at least one stull component, and the stull component includes two and is respectively provided with inner end and outer The singletree of end, the inner end of two singletrees rotate connection, the outer end of one of them singletree and its In a side stand component rotate connection, the outer end of another singletree and another described side stand component Rotate connection；

The stull component further includes for making two singletrees mutually rotate the inner link drawn close, the inner link One end and the side stand component slidably and rotatably connect with being capable of expansion with the side stand component or folding It folds and accordingly moves, the other end of the inner link and the singletree rotate connection to drive the singletree to rotate；

When the vehicle frame is in unfolded state, two singletrees are opposite to be unfolded, when the vehicle frame is in folded state, The outer end of two singletrees is mutually drawn close.

Preferably, each side stand component respectively includes front-wheel support for the front-wheel to be arranged and for being arranged The rear wheel support of rear-wheel is stated, the lateral frame includes be set between the front-wheel support of two side stand components One stull component and the second stull component being set between the rear wheel support of two side stand components.

It is highly preferred that the inner link of the first stull component is rotatably connected at one first sliding part, described first Sliding part is slidably disposed on the front-wheel support；The inner link of the second stull component is rotatably connected at one Two sliding parts, second sliding part are slidably disposed on the rear wheel support.

Further, each side stand component is respectively further comprised for being unfolded with the side stand component or folding and band Move the link assembly of first sliding part and/or second sliding part movement.

Further, the link assembly includes for driving the rear pole of the second sliding part movement, for making The pull rod and front strut of first sliding part and second sliding part linkage, the rear end of the rear pole rotationally connects Be connected to second sliding part, the front end of the rear pole be connected to the side stand component except rear wheel support other portions Position, the front end of the pull rod are rotatably connected at the front-wheel support, and the rear end of the pull rod is rotatably connected at Second sliding part, the upper end of the front strut are rotatably connected at the pull rod, and the lower end of the front strut can It is rotationally connected with first sliding part.

In a specific embodiment, the side stand component further includes that upper push-rod, upper end are rotatably connected at institute The lower push-rod and upper end for stating upper push-rod are rotatably connected at the side brace of the upper push-rod lower end, under the lower push-rod The upper end of end, the upper end of the front-wheel support and the rear wheel support connects in relative rotation two-by-two or the company of rotating coaxially It connects, the lower end of the side brace is rotatably connected at the rear wheel support, and the front end of the rear pole rotationally connects It is connected to the side brace or the lower push-rod, the rear end of the rear pole is rotatably connected at second sliding part.

Further, the side stand component further includes a bar, and the rear end of the seat bar is rotatably connected at described Side brace, the front of the seat bar are slidably and rotatably connected to the lower push-rod, and the lateral frame further includes being connected to Cross support component between the seat bar.

Preferably, the end of the inner link is connected to the side stand component, the end of the inner link by sliding part Portion is rotatably connected at the sliding part, and the sliding part is slidably connected to the side stand component.

Preferably, the inner end of two singletrees is rotated connection by the first pivot, the outer end of the singletree Portion is rotated with the side stand component by the second pivot and is connect, the one end of the inner link by third pivot with it is described Side stand component rotates connection, and the other end of the inner link, which is rotated by the 4th pivot with the singletree, to be connect, First pivot, each second pivot, each third pivot and each 4th pivot in the same stull component The axial line of axis is parallel to each other.

Preferably, the equal length of two singletrees of the same stull component.

In conjunction with above-mentioned, the utility model uses above technical scheme, has the advantages that compared with prior art

By the way that the one end of inner link is slidably and rotatably connected to side stand component, and the other end can then turn It is connected to singletree dynamicly, inner link drives two singletrees mutually to draw close while side stand member collapses, realizes stull Component collapses, easy to operate, and the lateral dimension of the stull component after gathering is smaller, reduces the folded ruler of children trolley It is very little, so that folded volume is more small and exquisite.

Detailed description of the invention

It, below will be to needed in embodiment description in order to illustrate more clearly of the technical solution of the utility model Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention, for For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing.

Fig. 1 is according to a kind of three-dimensional structure diagram of children trolley of the utility model, and wherein vehicle frame is in unfolded state；

Fig. 2 is the partial enlarged view in Fig. 1 at A；

Fig. 3 is the partial enlarged view in Fig. 1 at B；

Fig. 4 is the side view of children trolley shown in Fig. 1；

Fig. 5 is the three-dimensional structure diagram of children trolley shown in Fig. 1, and wherein vehicle frame is in folding process；

Fig. 6 is the side view of children trolley shown in Fig. 5；

Fig. 7 is the three-dimensional structure diagram of children trolley shown in Fig. 1, and wherein vehicle frame is in folded state；

Fig. 8 is the side view of children trolley shown in Fig. 7.

Wherein,

1, side stand component；11, upper push-rod；111, upper boom；112, lower beam；12, lower push-rod；13, front-wheel support；131, One sliding sleeve；14, rear wheel support；141, the second sliding sleeve；15, side brace；16, rear pole；17, pull rod；18, front strut；19, seat Bar；191, seat bar sliding sleeve；

2, lateral frame；21a, singletree；21b, singletree；22a, inner link；22b, inner link；23, first connecting rod；24, Second connecting rod；201, the first stull component；202, the second stull component；203, cross support component；204, push rod connection component；

3, front-wheel；

4, rear-wheel.

Specific embodiment

The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model It can be easier to be understood by the person skilled in the art with feature.The noun of locality addressed in the utility model is according to art technology Personnel define the usual observation visual angle of the children trolley after expansion, as "front", "rear" corresponds respectively to a left side for Fig. 2 paper Side, right side.

Referring to Fig.1 shown in -8, a kind of children trolley, including with unfolded state and folded state vehicle frame, be set to vehicle The front-wheel 3 of frame bottom front and the rear-wheel 4 for being set to bottom of frame rear.Vehicle frame includes at least two side stand components 1 and connects The lateral frame 2 being connected between side stand component 1.In the present embodiment, the quantity of side stand component 1 is two, and is located at The left and right sides of virgin cart, in a further embodiment, the quantity of side stand component 1 can be three.Lateral frame 2 is used for two The side stand component 1 of side connects.

In conjunction with shown in Fig. 2 and Fig. 3, the lateral frame 2 includes at least one stull component.Each stull component respectively includes Two are respectively provided with the singletree (that is, singletree 21a and singletree 21b) of inner end and outer end, singletree 21a and singletree The inner end of 21b rotates connection, wherein and the outer end of singletree 21a and one of side stand component 1 rotate connection, The outer end of singletree 21b and another side stand component 1 rotate connection.Stull component further includes for making singletree 21a Mutually rotate the inner link (that is, inner link 22a and/or inner link 22b) drawn close with singletree 21b, the one end of inner link and Side stand component 1 slidably and rotatably connect with can with side stand component 1 fold and accordingly move, inner link it is another End and singletree 21a and/or singletree 21b rotate connection to drive singletree 21a and singletree 21b to rotate.Specifically, Stull component includes inner link 22a and inner link 22b, the side stand component 1 in the lower end of inner link 22a and left side slidably and It is rotatably coupled, the upper end of inner link 22a and singletree 21a rotate connection；The lower end of inner link 22b and right side Side stand component 1 slidably and rotatably connects, and the upper end of inner link 22b rotates with singletree 21b to be connect.Inner link The lower end of 22a and inner link 22b pass through sliding part respectively and are connected to side stand component 1, under inner link 22a, inner link 22b End is rotatably connected at sliding part respectively, and sliding part is slidably connected to side stand component 1, which is specially to slide Set.When vehicle frame is in unfolded state, singletree 21a and singletree 21b are unfolded relatively and extend along the left and right directions of children trolley, Constitute triangular structure between each singletree 21a and the inner link 22a of respective side, side stand component 1, each singletree 21b and right It answers and constitutes triangular structure between the inner link 22b of side, side stand component 1；When vehicle frame is in folded state, singletree 21a and The outer end of singletree 21b is mutually drawn close, and the inner end of singletree 21a and singletree 21b are located above or below its outer end, Singletree 21a, singletree 21b, inner link 22a, inner link 22b and side stand component 1 are mutually drawn close.In addition, same stull group The equal length of the singletree 21a and singletree 21b of part, and stull component or so mirror is symmetrical, folds latter two side to reduce The distance of bracket component 1, i.e. reduction lateral dimension.It is further preferable that lateral frame 2 includes multiple stull components, each stull component Singletree be equal in length.

Each side stand component 1 respectively includes the front-wheel support 13 for front-wheel 3 to be arranged and the rear-wheel branch for rear-wheel 4 to be arranged Frame 14, the upper end of front-wheel support 13 and the upper end of rear wheel support 14 rotate connection.Lateral frame 2 includes being set to two sides The first stull component 201 between the front-wheel support 13 of bracket component 1 and the rear wheel support 14 for being set to two side stand components 1 Between the second stull component 202.Referring to shown in Fig. 2, in the first stull component 201, singletree 21a and singletree 21b's Outer end is rotatably connected at front-wheel support 13 respectively, and the upper end of inner link 22a is rotatably connected at singletree 21a Both ends between, the upper end of inner link 22b is rotatably connected between the both ends of singletree 21b, inner link 22a and The lower end of inner link 22b is rotatably connected at one first sliding part respectively, and the first sliding part is specially slideably arranged In the first sliding sleeve 131 on front-wheel support 13, two the first sliding sleeves 131 are located at the lower section of singletree 21a, singletree 21b. Referring to shown in Fig. 3, in the second stull component 202, the outer end of singletree 21a and singletree 21b are rotatably coupled respectively In rear wheel support 14, the upper end of inner link 22a is rotatably connected between the both ends of singletree 21a, inner link The upper end of 22b is rotatably connected between the both ends of singletree 21b, the end portion of inner link 22a and inner link 22b It is not rotatably connected at one second sliding part, the second sliding part is specially slideably sheathed on second on rear wheel support 14 Sliding sleeve 141, two the second sliding sleeves 141 are located at the lower section of singletree 21a, singletree 21b.

Referring to shown in Fig. 2, the inner end of singletree 21a and singletree 21b is rotated connection by the first pivot a1, stull The outer end of bar 21a and singletree 21b, which pass through the second pivot a2 respectively and rotates with side stand component 1, to be connect, inner link 22a and The lower end of inner link 22b, which passes through third pivot a3 respectively and rotates with side stand component 1, to be connect, the upper end of inner link 22a It is rotated and is connect with singletree 21a by the 4th pivot a4, the upper end of inner link 22b passes through the 4th pivot a4 and singletree 21b rotates connection, the first pivot a1, each second pivot a2, each third pivot a3 and each 4th pivot in same stull component The axial line of axis a4 is parallel to each other, and the common locating plane of the center line for being preferably normal to two front-wheel supports 13 or two The common locating plane of the center line of rear wheel support 14.

Each side stand component 1, which is respectively further comprised, drives first sliding sleeve for being unfolded with side stand component 1 or folding 131 and/or second sliding sleeve 141 sliding link assembly, side stand component 1 be unfolded or fold when, link assembly is therewith Movement, to drive, the first sliding sleeve 131 is slided along front-wheel support 13 and/or the second sliding sleeve 141 is slided along rear wheel support 14.Connecting rod Component specifically includes rear pole 16 for driving the second sliding sleeve 141 mobile, be located at the first sliding sleeve 131 and the second sliding sleeve 141 it Between both make the pull rod 17 and front strut 18 that link, the rear end of rear pole 16 is rotatably connected at the second sliding sleeve 141, back brace The front end of bar 16 be connected to side stand component 1 except rear wheel support 14 other positions, the front end of pull rod 17 is rotationally It is connected to front-wheel support 13, the rear end of pull rod 17 is rotatably connected at the second sliding sleeve 141, and the upper end of front strut 18 can turn It is connected between the both ends of pull rod 17 dynamicly, the lower end of front strut 18 is rotatably connected at the first sliding sleeve 131.

In conjunction with shown in Fig. 1 and 4, each side stand component 1 specifically includes the front-wheel support 13, the rear wheel support 14, institute State rear pole 16, the pull rod 17, the front strut 18 and upper push-rod 11, lower push-rod 12 and side brace 15.Upper push-rod 11 by Upper boom 111 and lower beam 112 composition that is setting up and down and being connected to one, the upper end of lower push-rod 12 is rotatably connected at The upper boom 111 of upper push-rod 11 and the joint of lower beam 112.The lower end of lower push-rod 12, the upper end of front-wheel support 13 and rear-wheel The upper end of bracket 14 connects or rotates coaxially in relative rotation two-by-two connection, such as two of them component first passes through a pivot Rotate connection, the connection that rotates that third component passes through in another pivot and above-mentioned two component again；Or three It is rotated connection by the same pivot.Specific in the present embodiment, the lower end of lower push-rod 12, the upper end of front-wheel support 13 are divided It is not pivotally connected to the top of rear wheel support 14.The upper end of side brace 15 is rotatably connected at the lower beam 112 of upper push-rod 11 Lower end, the lower end of side brace 15 is rotatably coupled rear wheel support 14.The front end of rear pole 16 is specifically rotationally It is connected between the both ends of the side brace 15, or is rotatably connected between the both ends of the lower push-rod 12.

Side stand component 1 further includes a bar 19, and the rear end of seat bar 19 is rotatably connected at side brace 15, seat bar 19 Front is slidably and rotatably connected to lower push-rod 12.Specific in the present embodiment, seat bar 19 is slideably inserted in a bar In sliding sleeve 191, seat bar sliding sleeve 191 is rotatably connected at lower push-rod 12；Rear end, the upper end of rear pole 16 of seat bar 19 are logical It crosses same pivot and is rotatably connected at side brace 15.

As shown in connection with fig. 1, lateral frame 2 further includes the cross group being connected between the seat bar 19 of two side stand components 1 Part 203.The cross support component 203 includes two groups of first connecting rods 23, and every group of first connecting rod 23 includes two compositions ten that intersect The first connecting rod 23 of character form structure.The middle part of two first connecting rods 23 of each group rotates connection, and outer end can be rotated respectively Ground is connected to a bar 19, and inner end is rotatably connected at the inner end of another group of two first connecting rods 23 respectively.Seat bar 19 Between cross support component 203 can also be substituted by above-mentioned stull component.

Lateral frame 2 further comprises the push rod connection being connected between 11 upper end of upper push-rod of two side stand components 1 Component 204.Push rod connection component 204 includes two second connecting rods 24, and the inner end of two second connecting rods 24 rotates connection, the The outer end of two connecting rods 24 is rotatably connected at 11 upper end of upper push-rod.

" rotation connection " addressed in the present embodiment refers both to be pivotally connected, and connects two components or three components by pivot It connects and allows to relatively rotate between component.

In conjunction with shown in Fig. 1-4, when vehicle frame is in unfolded state, lateral frame 2 is unfolded, wherein the two of the first stull component 201 The opposite expansion of a singletree 21a and 21b simultaneously extends along the left and right directions of children trolley, and the front-wheel support 13 of two sides is unfolded；The The opposite expansion of two singletrees 21a and 21b of two stull components 202 simultaneously extends along the left and right directions of children trolley, makes two sides Rear wheel support 14 is unfolded；The seat bar 19 of two sides is unfolded in the expansion of cross support component 203；Two second of push rod connection component 204 Simultaneously the upper push-rod 11 of two sides is unfolded along the extension of the left and right directions of children trolley in the expansion of connecting rod 24.Each side stand component 1 above pushes away Bar 11, lower push-rod 12, front-wheel support 13, rear wheel support 14 and side brace 15 are mutually unfolded.

In conjunction with shown in Fig. 5 and Fig. 6, when vehicle frame is when folding, the locking mechanism between upper push-rod 11 and lower push-rod 12 is unlocked, It is pressed downward upper push-rod 11 and is close to rear wheel support 14, side brace 15 pushes rear pole 16 that second sliding sleeve 141 is moved down, and drives Pull rod 17 rotates, and while so that front-wheel support 13 and rear wheel support 14 are drawn close, front strut 18 rotates with it and pushes first to slide Set 131 moves down；As the second sliding sleeve 141, the first sliding sleeve 131 move down, inner link 22a, inner link 22b are rotated and are pulled down Dynamic singletree 21a and singletree 21b rotation, drives the first stull component 201,202 folding of the second stull component, cross support component 203, push rod connection component 204 draws close folding therewith.

Referring to figs. 7 and 8, when vehicle frame is in folded state, the rod piece of each side stand component 1 is mutually drawn close respectively, Before singletree 21a and singletree 21b, the inner link 22a and inner link 22b of first stull component 201 draw close and make two sides Wheel support 13 is drawn close, the two singletree 21a and singletree 21b of the second stull component 202, two inner link 22a and inner link 22b draws close and the rear wheel support 14 of two sides is drawn close, and the gathering of cross support component 203 draws close the seat bar 19 of two sides mutually, pushes away Two second connecting rods 24 of bar connection component 204, which are drawn close, draws close the upper push-rod 11 of two sides mutually, to realize that children trolley exists The laterally folding on (i.e. left and right directions), makes the gathering close to each other of two side stand components 1.

The first stull component 201 and the second stull component 202 is driven to collapse while side stand component 1 folds, operation It is convenient, and the lateral dimension of the first stull component 201 and the second stull component 202 after gathering is smaller, reduces children and pushes away The folded size of vehicle (size especially on left and right directions), so that folded volume is more small and exquisite.

The above embodiments are only for explaining the technical ideas and features of the present invention, is preferred embodiment, purpose It is that person skilled in the art can understand the content of the utility model and implement accordingly, can not be limited with this practical Novel protection scope.Equivalent transformation or modification made by all Spirit Essences according to the present utility model, should all cover in this reality Within novel protection scope.

Claims (10)

1. a kind of children trolley, including with unfolded state and folded state vehicle frame, be set in front of the bottom of frame Front-wheel and the rear-wheel for being set to the bottom of frame rear；The vehicle frame includes at least two side stand components and is connected to described Lateral frame between side stand component；It is characterized by:

The lateral frame includes at least one stull component, and the stull component includes two and is respectively provided with inner end and outer end Singletree, the inner end of two singletrees rotates connection, the outer end of one of them singletree and wherein one A side stand component rotates connection, and the outer end of another singletree mutually turns with side stand component described in another Dynamic connection；

The stull component further includes for making two singletrees mutually rotate the inner link drawn close the one of the inner link End and the side stand component slidably and rotatably connect with can with the expansion or folding of the side stand component and Corresponding mobile, the other end of the inner link and the singletree rotate connection to drive the singletree to rotate；

When the vehicle frame is in unfolded state, two singletrees are opposite to be unfolded, when the vehicle frame is in folded state, two The outer end of the singletree is mutually drawn close.

2. children trolley according to claim 1, it is characterised in that: each side stand component is respectively included for being arranged The front-wheel support of the front-wheel and rear wheel support for the rear-wheel to be arranged, the lateral frame include being set to two sides The first stull component between the front-wheel support of bracket component and the rear-wheel for being set to two side stand components The second stull component between bracket.

3. children trolley according to claim 2, it is characterised in that: the inner link of the first stull component is rotationally It is connected to one first sliding part, first sliding part is slidably disposed on the front-wheel support；The second stull group The inner link of part is rotatably connected at one second sliding part, and second sliding part is slidably disposed in the rear wheel support On.

4. children trolley according to claim 3, it is characterised in that: each side stand component respectively further comprise for The side stand component expansion or the connection rod set for folding and driving first sliding part and/or second sliding part movement Part.

5. children trolley according to claim 4, it is characterised in that: the link assembly includes for driving described second The mobile rear pole of sliding part, pull rod and front strut for making first sliding part and second sliding part link, institute The rear end for stating rear pole is rotatably connected at second sliding part, and the front end of the rear pole is connected to described collateral Frame component except rear wheel support other positions, the front end of the pull rod is rotatably connected at the front-wheel support, described The rear end of pull rod is rotatably connected at second sliding part, and the upper end of the front strut is rotatably connected at described Pull rod, the lower end of the front strut are rotatably connected at first sliding part.

6. children trolley according to claim 5, it is characterised in that: the side stand component further includes upper push-rod, upper end Portion is rotatably connected at the lower push-rod of the upper push-rod and upper end is rotatably connected at the side of the upper push-rod lower end Strut, the upper end of the lower end of the lower push-rod, the upper end of the front-wheel support and the rear wheel support is opposite two-by-two to be turned Connection is connected or rotates coaxially dynamicly, the lower end of the side brace is rotatably connected at the rear wheel support, the back brace The front end of bar is rotatably connected at the side brace or the lower push-rod.

7. children trolley according to claim 6, it is characterised in that: the side stand component further includes a bar, the seat The rear end of bar is rotatably connected at the side brace, the front of the seat bar be slidably and rotatably connected to it is described under Push rod, the lateral frame further include the cross support component being connected between the seat bar.

8. children trolley according to claim 1, it is characterised in that: the end of the inner link is connected to by sliding part The side stand component, the end of the inner link are rotatably connected at the sliding part, and the sliding part slideably connects It is connected to the side stand component.

9. children trolley according to claim 1, it is characterised in that: the inner end of two singletrees passes through the first pivot Axis rotates connection, and the outer end of the singletree, which is rotated by the second pivot with the side stand component, to be connect, it is described in The one end of connecting rod is rotated with the side stand component by third pivot and is connect, and the other end of the inner link passes through the Four pivots rotate with the singletree and connect, first pivot, each second pivot in the same stull component, The axial line of each third pivot and each 4th pivot is parallel to each other.

10. children trolley according to claim 1, it is characterised in that: two stulls of the same stull component The equal length of bar.