CN207157289U - A kind of Multifunctional tricycle children trolley - Google Patents

Abstract

It the utility model is related to a kind of Multifunctional tricycle children trolley, including front fork assembly (2), multi-purpose saddle component (5) and frame cross (6), the front end of described frame cross (6) is connected with front fork assembly (2), the rear end of the frame cross (6), which is provided with, places sole (8), the both sides of described placement sole (8) have been arranged symmetrically trailing wheel (7), placement sole (8) upper end is provided with hand push bar assembly (10), the upper end of described frame cross (6) is slidably fitted with seat-assembly (9), multi-purpose saddle component (5) is rotatablely equipped with the middle part of the lower end of the frame cross (6).The utility model can realize the difference in functionalitys such as doll carriage, tricycle by simple conversion, constantly change its function with the growth of child, accompany child to pass by child's period with a car can, reduce unnecessary waste.

Description

A kind of Multifunctional tricycle children trolley

Technical field

Children trolley technical field is the utility model is related to, more particularly to a kind of Multifunctional tricycle children trolley.

Background technology

The infant-growth stage, which generally requires, uses doll carriage, tricycle.But the time that every kind of car uses all compares Shorter, using the car of low cost, infant cannot ensure safely；The safe and reliable car of use quality, inevitable cost Can be very high, each stage again with not bad, causes the very big waste of social resources.

The content of the invention

Technical problem to be solved in the utility model is to provide a kind of Multifunctional tricycle children trolley, and the stroller can pass through Simple conversion realizes the difference in functionalitys such as doll carriage, tricycle, constantly changes its function with the growth of child, with one Car can accompanies child to pass by child's period, reduces unnecessary waste.

Technical scheme is used by the utility model solves its technical problem：A kind of Multifunctional tricycle children are provided to push away Car, including front fork assembly, multi-purpose saddle component and frame cross, the front end of described frame cross are connected with front fork assembly, should The rear end of frame cross is provided with placement sole, and the both sides of described placement sole have been arranged symmetrically trailing wheel, on the placement sole End is provided with hand push bar assembly, and the upper end of described frame cross is slidably fitted with seat-assembly, in the lower end of the frame cross Portion is rotatablely equipped with multi-purpose saddle component；

Described multi-purpose saddle component includes connecting tube, multi-purpose saddle and rotating shaft, the lower end middle part of described frame cross Rotating shaft is disposed with, the both ends of the rotating shaft are rotatablely equipped with connecting tube, and described multi-purpose saddle upper surface is symmetrically installed with two The inserting column arranged vertically, the inserting column one end are inserted into fixed in corresponding connecting tube；

Described front fork assembly includes front fork, lower house and upper shell, described lower house outer wall middle part and frame cross It is connected, it is vertically-mounted in the lower house to have front fork, front-wheel is installed between the U-shaped portion of described front fork, the front-wheel both sides are symmetrical Pedal is installed, the vertical portion of described front fork is sequentially installed with limit base, connecting seat from the bottom up, on described limit base End has been evenly arranged several inner groovies around the vertical portion of front fork, and the bottom of described connecting seat corresponds to inner groovy cloth Convex column is equipped with, the top both sides of the connecting seat have been arranged symmetrically guide pillar, and described lower house upper end is rotatablely equipped with rotation set, should The upward sloping platform rank of two spirals is centrosymmetrically arranged along rotation set central shaft on rotation set inwall, described guide pillar is buckled in correspondingly Sloping platform rank on, described connecting seat is up and down along the vertical portion of front fork as rotation set rotates, the upper end of described rotation set Upper shell is installed, the both sides of the upper shell are symmetrically installed with handle-bar.

Supplemented as one kind to technical scheme described in the utility model, rotational installation is flexible in described inserting column Flexible button, the lower end of the elastic telescopic button are connected with back-moving spring, and the upper end of described elastic telescopic button is hook portion, the hook Portion one end is stretched out outside inserting column, and hook portion is corresponded in the side wall of described connecting tube and is provided with through hole.Through hole coordinates real with hook portion It is existing fixed between inserting column and connecting tube.

Supplemented as one kind to technical scheme described in the utility model, described multi-purpose saddle is in n-type, the multi-purpose saddle Seat lower surface is shiny surface, and two vertical portions upper end that described multi-purpose saddle upper surface is located at multi-purpose saddle has been arranged symmetrically two Arrange anti-skid bulge bar.The increase friction of anti-skid bulge bar, plays anti-skidding effect.

Supplemented as one kind to technical scheme described in the utility model, described hand push bar assembly includes outer tube, interior Pipe and locker, the upper surface both sides of described placement sole are symmetrically installed with two outer tubes, are mounted in each outer tube Inner tube, it is connected by U-shaped handrail tube between the upper end of two inner tubes, is consolidated between described outer tube and inner tube by locker It is fixed.Elastic locker, the total length of both outer tube and inner tube can be adjusted.

Supplemented as one kind to technical scheme described in the utility model, described seat-assembly includes seat, handrail And tent, described seat lower end are provided with sliding seat, the sliding seat is slidably connected with frame cross, and described seat rear end is erected Back cushion directly is installed, the back cushion both sides are rotatablely equipped with handrail, and described back cushion upper end is rotatablely equipped with extensible Tent.

Supplemented as one kind to technical scheme described in the utility model, the both sides of described upper shell are symmetrically installed with Handle-bar, it is connected by connecting shaft between both direction handle, is cased with gear in the middle part of described connecting shaft, the both sides of the gear It is symmetrically installed with U-shaped actuator, the button phase that the vertical portion upper end of described U-shaped actuator is installed with upper shell upper center Even, the curved portions lower end of the U-shaped actuator is connected with the second up and down clamp of installation in upper shell, the described second card Plate lower end is provided with spring, and gear is blocked in the second clamp upper end.Button is pressed, button drives U-shaped actuator, U-shaped actuator Second clamp is pushed, the second clamp upper end separates with gear, can rotate the position of regulation handle-bar, after regulation, Release button, spring will push up on the second clamp, and gear is blocked in the second clamp upper end, it is ensured that handle-bar can not rotate.

Being supplemented as one kind to technical scheme described in the utility model, the upper end of two U-shaped actuators is connected, and two Individual U-shaped actuator is integrally formed.

Supplemented as one kind to technical scheme described in the utility model, described lower house lower end is disposed with baffle plate. Baffle plate can stop that the water that front-drive splashes, mud etc. are dirty.

Supplemented as one kind to technical scheme described in the utility model, described upper shell bottom level is slidably installed There is the first clamp, manhole is provided with the middle part of first clamp, first described clamp one end is stretched out outside upper shell, and this first The other end of clamp is connected with the spring of installation in upper shell, and the upper end of described front fork vertical portion is extend into through manhole In the groove of upper shell bottom, a circle interior annular groove is provided with manhole in the side wall of the front fork vertical portion.Three-wheel Under stroller use state, the manhole of the first clamp blocks the interior annular groove of front fork vertical portion；When need take out front fork with And during the connected components of front fork lower end, the first clamp only need to be promoted, manhole is departed from the interior annular groove of front fork vertical portion, just It can take out.

Supplemented as one kind to technical scheme described in the utility model, described placement sole upper surface is located at vehicle frame The both sides of crossbeam have been arranged symmetrically two row's anti-skid bulge bars.The increase friction of anti-skid bulge bar, plays anti-skidding effect.

Beneficial effect：A kind of Multifunctional tricycle children trolley is the utility model is related to, by rotating rotation set, drives limit base Separate or be connected with connecting seat, realize that handle-bar is separated or is connected with front fork, if limit base separates with connecting seat, side Separated to handle with front fork, the uncontrollable front-wheel steer of handle-bar, the front-wheel of stroller becomes universal wheel, and stroller is converted into baby Stroller function, if limit base is connected with connecting seat, handle-bar is connected with front fork, and handle-bar can control front-wheel steer, Seat-assembly need to only be pulled down, then pull down multi-purpose saddle, will turned at the lower ending opening of connecting tube above frame cross, then Multi-purpose saddle is buckled in the opening of connecting tube, stroller is converted into tricycle function；It can very easily realize that baby pushes away The mutual conversion of car, tricycle, a car use, and meet the demand in infant's each stage.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the structural representation of front fork assembly described in the utility model；

Fig. 3 is the sectional view in the A-A directions shown in the utility model Fig. 2；

Fig. 4 is the partial enlarged drawing at the A shown in the utility model Fig. 3；

Fig. 5 is the structural representation of connecting seat described in the utility model；

The structural representation of Fig. 6 limit bases described in the utility model；

The structural representation of Fig. 7 rotation sets described in the utility model；

Fig. 8 the utility model removes the structural representation after seat-assembly；

The structural representation of Fig. 9 multi-purpose saddles described in the utility model；

The structural representation of the described multi-purpose saddle of Figure 10 inventions；

The structural representation of the described elastic telescopic button of Figure 11 inventions；

The structural representation of the described seat-assembly of Figure 12 inventions；

The internal structure schematic diagram of the described upper shell of Figure 13 inventions；

The polycrystalline substance schematic diagram of the described upper shell of Figure 14 inventions；

The structural representation of the described front fork of Figure 15 inventions.

Diagram：1st, handle-bar, 2, front fork assembly, 3, front-wheel, 4, pedal, 5, multi-purpose saddle component, 6, frame cross, 7th, trailing wheel, 8, place sole, 9, seat-assembly, 10, hand push bar assembly, 11, connecting tube, 12, multi-purpose saddle, 13, rotating shaft, 14, Outer tube, 15, locker, 16, inner tube, 17, U-shaped handrail tube, 18, interior annular groove, 19, inserting column, 20, elastic telescopic button, 21st, anti-skid bulge bar, 22, hook portion, 23, sliding seat, 24, seat, 25, handrail, 26, back cushion, 27, tent, 28, front fork, 29th, lower house, 30, upper shell, the 31, first clamp, 32, rotation set, 33, baffle plate, 34, limit base, 35, connecting seat, the 36, second card Plate, 37, U-shaped actuator, 38, sloping platform rank, 39, guide pillar, 40, convex column, 41, inner groovy, 42, button, 43, connecting shaft, 44, tooth Wheel, 45, groove, 46, manhole.

Embodiment

With reference to specific embodiment, the utility model is expanded on further.It should be understood that these embodiments are merely to illustrate this Utility model rather than limitation the scope of the utility model.In addition, it is to be understood that reading the content of the utility model instruction Afterwards, those skilled in the art can make various changes or modifications to the utility model, and these equivalent form of values equally fall within this Shen Please appended claims limited range.

Embodiment of the present utility model is related to a kind of Multifunctional tricycle children trolley, as shown in figures 1-15, including front fork Component 2, multi-purpose saddle component 5 and frame cross 6, the front end of described frame cross 6 are connected with front fork assembly 2, and the vehicle frame is horizontal The rear end of beam 6, which is provided with, places sole 8, and the both sides of described placement sole 8 have been arranged symmetrically trailing wheel 7, on the placement sole 8 End is provided with hand push bar assembly 10, and the upper end of described frame cross 6 is slidably fitted with seat-assembly 9, the frame cross 6 Multi-purpose saddle component 5 is rotatablely equipped with the middle part of lower end；

Described multi-purpose saddle component 5 includes connecting tube 11, multi-purpose saddle 12 and rotating shaft 13, described frame cross 6 Rotating shaft 13 is disposed with the middle part of lower end, the both ends of the rotating shaft 13 are rotatablely equipped with connecting tube 11, the described upper end of multi-purpose saddle 12 Face is symmetrically installed with two inserting columns arranged vertically 19, and the one end of inserting column 19 is inserted into fixed in corresponding connecting tube 11；

Described front fork assembly 2 includes front fork 28, lower house 29 and upper shell 30, in the middle part of the described outer wall of lower house 29 with Frame cross 6 is connected, vertically-mounted in the lower house 29 to have front fork 28, and front-wheel is provided between the U-shaped portion of described front fork 28 3, the both sides of front-wheel 3 are symmetrically installed with pedal 4, and the vertical portion of described front fork 28 is sequentially installed with limit base from the bottom up 34th, connecting seat 35, the described upper end of limit base 34 have been evenly arranged several inner groovies 41 around the vertical portion of front fork 28, The bottom of described connecting seat 35 corresponds to inner groovy 41 and is disposed with convex column 40, the symmetrical cloth in top both sides of the connecting seat 35 Guide pillar 39 is equipped with, the described upper end of lower house 29 is rotatablely equipped with rotation set 32, along the central shaft of rotation set 32 on the inwall of rotation set 32 The upward sloping platform rank 38 of two spirals is centrosymmetrically arranged, described guide pillar 39 is buckled on corresponding sloping platform rank 38, described The upper end that connecting seat 35 rotates rotation set 32 up and down along the vertical portion of front fork 28, described with rotation set 32 is provided with upper casing Body 30, the both sides of the upper shell 30 are symmetrically installed with handle-bar 1.

Elastic telescopic button 20 is rotatablely equipped with described inserting column 19, the lower end of the elastic telescopic button 20 and back-moving spring It is connected, the upper end of described elastic telescopic button 20 is hook portion 22, and the one end of hook portion 22 is stretched out outside inserting column 19, described company Hook portion 22 is corresponded in the side wall of adapter 11 and is provided with through hole.

Described multi-purpose saddle 12 is in n-type, and the multi-purpose lower surface of saddle 12 is shiny surface, the described upper end of multi-purpose saddle 12 Two vertical portions upper end that face is located at multi-purpose saddle 12 has been arranged symmetrically two row's anti-skid bulge bars 21.

Described hand push bar assembly 10 includes outer tube 14, inner tube 16 and locker 15, the upper end of described placement sole 8 Face both sides are symmetrically installed with two outer tubes 14, and inner tube 16 is mounted in each outer tube 14, is led between the upper end of two inner tubes 16 Cross U-shaped handrail tube 17 to be connected, fixed between described outer tube 14 and inner tube 16 by locker 15.

Described seat-assembly 9 includes seat 24, handrail 25 and tent 27, and the described lower end of seat 24 is provided with sliding seat 23, the sliding seat 23 is slidably connected with frame cross 6, and the described rear end of seat 24 is vertically-mounted back cushion 26, the back cushion 26 both sides are rotatablely equipped with handrail 25, and the described upper end of back cushion 26 is rotatablely equipped with extensible tent 27.

The both sides of described upper shell 30 are symmetrically installed with handle-bar 1, pass through connecting shaft 43 between both direction handle 1 It is connected, the described middle part of connecting shaft 43 is cased with gear 44, and the both sides of the gear 44 are symmetrically installed with U-shaped actuator 37, described U The button 42 that the vertical portion upper end of type actuator 37 is installed with the upper center of upper shell 30 is connected, the arc of the U-shaped actuator 37 Subordinate end is connected with the second up and down clamp 36 of installation in upper shell 30, and the described lower end of the second clamp 36 is provided with bullet Gear 44 is blocked in spring, the upper end of the second clamp 36.

The upper end of two U-shaped actuators 37 is connected, and two U-shaped actuators 37 are integrally formed.

The described lower end of lower house 29 is disposed with baffle plate 33.

The described bottom level of upper shell 30 is slidably fitted with the first clamp 31, and the middle part of first clamp 31 is provided with circle Through hole 46, described one end of the first clamp 31 are stretched out outside upper shell 30, and the other end of first clamp 31 in upper shell 30 with pacifying The spring of dress is connected, and the upper end of the described vertical portion of front fork 28 extend into the groove 45 of the bottom of upper shell 30 through manhole 46 It is interior, it is provided with a circle interior annular groove 18 at manhole 46 in the side wall of the vertical portion of front fork 28.

The both sides that described placement sole 8 upper surface is located at frame cross 6 have been arranged symmetrically two row's anti-skid bulge bars 21.

Embodiment

The utility model has two kinds of doll carriage, tricycle functional modes, can very easily realize that baby pushes away The mutual conversion of car, tricycle, a car use, and meet the demand in infant's each stage.

, can be up and down with vertical portion of the drive connection seat 35 along front fork 28 by rotating rotation set 32, control limit base 34 inner groovy 41 separates or interlocked with the convex column 40 of connecting seat 35, realizes that handle-bar 1 separates or phase with front fork 28 Even, if the inner groovy 41 of limit base 34 separates with the convex column 40 of connecting seat 35, handle-bar 1 separates with front fork 28, direction The uncontrollable front-wheel 3 of handle 1 turns to, and the front-wheel 3 of stroller becomes universal wheel, and stroller is converted into doll carriage function, if limit base 34 inner groovy 41 interlocks with the convex column 40 of connecting seat 35, then handle-bar 1 is connected with front fork 28, and handle-bar 1 can be controlled Front-wheel 3 processed turns to, and need to only pull down seat-assembly 9, then pulls down multi-purpose saddle 12, will be turned at the lower ending opening of connecting tube 11 The top of frame cross 6, then loads onto multi-purpose saddle 12 in the opening of connecting tube 11, and the inserting column 19 of multi-purpose saddle 12 inserts Into connecting tube 11, the through hole of connecting tube 11 is stretched out in the hook portion 22 of elastic telescopic button 20, ensures connecting tube 11 and multi-purpose saddle Fixation between 12 is relatively stable, and stroller is converted into tricycle function.

Elastic telescopic button 20 is rotatablely equipped with inserting column 19, the lower end of the elastic telescopic button 20 is connected with back-moving spring, The upper end of elastic telescopic button 20 is hook portion 22, and the one end of hook portion 22 is stretched out outside inserting column 19, right in the side wall of connecting tube 11 Hook portion 22 is answered to be provided with through hole.Through hole and the cooperation of hook portion 22 are realized to be fixed between inserting column 19 and connecting tube 11, only need to be by hook Sub-portion 22 is pressed in through hole, so that it may separates inserting column 19 with connecting tube 11.

The bottom level of upper shell 30 is slidably fitted with the first clamp 31, and the middle part of the first clamp 31 is provided with manhole 46, The one end of first clamp 31 is stretched out outside upper shell 30, and the other end of the first clamp 31 is connected with the spring of installation in upper shell 30, preceding The upper end for pitching 28 vertical portions is extend into the groove 45 of the bottom of upper shell 30 through manhole 46, the side wall of the vertical portion of front fork 28 It is upper to be provided with a circle interior annular groove 18 at manhole 46.Under three-wheeled cart use state, the circle of the first clamp 31 is led to Block the interior annular groove 18 of the vertical portion of front fork 28 in hole 46；When needing to take out 28 lower end connected components of front fork 28 and front fork, The first clamp 31 only need to be promoted, manhole 46 is departed from the interior annular groove 18 of the vertical portion of front fork 28, it is possible to is taken out, pine The first clamp 31 is opened, connected spring can help the first clamp 31 to reset.

The both sides of upper shell 30 are symmetrically installed with handle-bar 1, are connected between both direction handle 1 by connecting shaft 43, The middle part of connecting shaft 43 is cased with gear 44, and the both sides of gear 44 are symmetrically installed with U-shaped actuator 37, the vertical portion of U-shaped actuator 37 The button 42 that upper end is installed with the upper center of upper shell 30 is connected, and the curved portions lower end of U-shaped actuator 37 in upper shell 30 with pacifying The second up and down clamp 36 of dress is connected, and the lower end of the second clamp 36 is provided with spring, and gear is blocked in the upper end of the second clamp 36 44.Button 42 is pressed, button 42 drives U-shaped actuator 37, and U-shaped actuator 37 pushes the second clamp 36, on the second clamp 36 End separates with gear 44, can rotate the position of regulation handle-bar 1, and after regulation, release button 42, spring blocks second Pushed up on plate 36, gear 44 is blocked in the upper end of the second clamp 36, it is ensured that handle-bar can not rotate.

Hand push bar assembly 10 includes outer tube 14, inner tube 16 and locker 15, and the upper surface both sides for placing sole 8 are symmetrically pacified Equipped with two outer tubes 14, inner tube 16 is mounted in each outer tube 14, passes through U-shaped handrail tube 17 between the upper end of two inner tubes 16 It is connected, is fixed between outer tube 14 and inner tube 16 by locker 15.Elastic locker 15, can adjust outer tube 14 and inner tube 16 both total lengths.

Claims (10)

1. a kind of Multifunctional tricycle children trolley, including front fork assembly (2), multi-purpose saddle component (5) and frame cross (6),

It is characterized in that：The front end of described frame cross (6) is connected with front fork assembly (2), the rear end peace of the frame cross (6) Equipped with sole (8) is placed, the both sides of described placement sole (8) have been arranged symmetrically trailing wheel (7), placement sole (8) upper end peace Equipped with hand push bar assembly (10), the upper end of described frame cross (6) is slidably fitted with seat-assembly (9), the frame cross (6) Lower end in the middle part of be rotatablely equipped with multi-purpose saddle component (5)；

Described multi-purpose saddle component (5) includes connecting tube (11), multi-purpose saddle (12) and rotating shaft (13), described frame cross (6) rotating shaft (13) is disposed with the middle part of lower end, the both ends of the rotating shaft (13) are rotatablely equipped with connecting tube (11), and described is multi-purpose Saddle (12) upper surface is symmetrically installed with two inserting columns arranged vertically (19), and inserting column (19) one end is inserted into corresponding It is fixed in connecting tube (11)；

Described front fork assembly (2) includes front fork (28), lower house (29) and upper shell (30), described lower house (29) outer wall Middle part is connected with frame cross (6), vertically-mounted in the lower house (29) to have front fork (28), the U-shaped portion of described front fork (28) Between front-wheel (3) is installed, front-wheel (3) both sides are symmetrically installed with pedal (4), and the vertical portion of described front fork (28) is under Limit base (34), connecting seat (35) are up sequentially installed with, described limit base (34) upper end is around the perpendicular of front fork (28) Straight portion has been evenly arranged several inner groovies (41), the bottom of described connecting seat (35) correspond to inner groovy (41) be disposed with it is convex Post (40) is played, the top both sides of the connecting seat (35) have been arranged symmetrically guide pillar (39), and described lower house (29) upper end rotates peace Equipped with rotation set (32), upward oblique of two spirals is centrosymmetrically arranged along rotation set (32) central shaft on rotation set (32) inwall Step (38), described guide pillar (39) are buckled on corresponding sloping platform rank (38), and described connecting seat (35) revolves with rotation set (32) Turn up and down along the vertical portion of front fork (28), the upper end of described rotation set (32) is provided with upper shell (30), the upper shell (30) both sides are symmetrically installed with handle-bar (1).

A kind of 2. Multifunctional tricycle children trolley according to claim 1, it is characterised in that：In described inserting column (19) Elastic telescopic button (20) is rotatablely equipped with, the lower end of the elastic telescopic button (20) is connected with back-moving spring, described elastic telescopic The upper end of button (20) is hook portion (22), and inserting column (19) is stretched out outside in hook portion (22) one end, described connecting tube (11) Hook portion (22) is corresponded in side wall and is provided with through hole.

A kind of 3. Multifunctional tricycle children trolley according to claim 1, it is characterised in that：Described multi-purpose saddle (12) In n-type, multi-purpose saddle (12) lower surface is shiny surface, and described multi-purpose saddle (12) upper surface is located at multi-purpose saddle (12) Two vertical portions upper end has been arranged symmetrically two row's anti-skid bulge bars (21).

A kind of 4. Multifunctional tricycle children trolley according to claim 1, it is characterised in that：Described hand push bar assembly (10) outer tube (14), inner tube (16) and locker (15) are included, the upper surface both sides of described placement sole (8) are symmetrically installed There are two outer tubes (14), be mounted on inner tube (16) in each outer tube (14), helped between the upper end of two inner tubes (16) by U-shaped Hand pipe (17) is connected, fixed by locker (15) between described outer tube (14) and inner tube (16).

A kind of 5. Multifunctional tricycle children trolley according to claim 1, it is characterised in that：Described seat-assembly (9) Including seat (24), handrail (25) and tent (27), described seat (24) lower end is provided with sliding seat (23), the sliding seat (23) it is slidably connected with frame cross (6), described seat (24) rear end is vertically-mounted back cushion (26), the back cushion (26) Both sides are rotatablely equipped with handrail (25), and described back cushion (26) upper end is rotatablely equipped with extensible tent (27).

A kind of 6. Multifunctional tricycle children trolley according to claim 1, it is characterised in that：Described upper shell (30) Both sides are symmetrically installed with handle-bar (1), are connected between both direction handle (1) by connecting shaft (43), described connecting shaft (43) middle part is cased with gear (44), and the both sides of the gear (44) are symmetrically installed with U-shaped actuator (37), described U-shaped actuator (37) button (42) that vertical portion upper end is installed with upper shell (30) upper center is connected, the arc of the U-shaped actuator (37) Subordinate end is connected with up and down the second clamp (36) of installation in upper shell (30), described the second clamp (36) lower end peace Equipped with spring, gear (44) is blocked in the second clamp (36) upper end.

A kind of 7. Multifunctional tricycle children trolley according to claim 6, it is characterised in that：Two U-shaped actuators (37) Upper end be connected, and two U-shaped actuators (37) are integrally formed.

A kind of 8. Multifunctional tricycle children trolley according to claim 1, it is characterised in that：Under described lower house (29) End is disposed with baffle plate (33).

A kind of 9. Multifunctional tricycle children trolley according to claim 1, it is characterised in that：Described upper shell (30) bottom Portion's level is slidably fitted with the first clamp (31), is provided with manhole (46) in the middle part of first clamp (31), and described first Upper shell (30) is stretched out outside in clamp (31) one end, the other end and the spring phase of installation in upper shell (30) of first clamp (31) Even, the upper end of described front fork (28) vertical portion extend into the groove (45) of upper shell (30) bottom through manhole (46) It is interior, it is provided with a circle interior annular groove (18) positioned at manhole (46) place in the side wall of front fork (28) vertical portion.

A kind of 10. Multifunctional tricycle children trolley according to claim 1, it is characterised in that：Described placement sole (8) The both sides that upper surface is located at frame cross (6) have been arranged symmetrically two row's anti-skid bulge bars (21).