WO2015180466A1 - 可折叠的儿童推车 - Google Patents

可折叠的儿童推车 Download PDF

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Publication number
WO2015180466A1
WO2015180466A1 PCT/CN2014/095510 CN2014095510W WO2015180466A1 WO 2015180466 A1 WO2015180466 A1 WO 2015180466A1 CN 2014095510 W CN2014095510 W CN 2014095510W WO 2015180466 A1 WO2015180466 A1 WO 2015180466A1
Authority
WO
WIPO (PCT)
Prior art keywords
bracket
strut
rotatably coupled
rod
locking
Prior art date
Application number
PCT/CN2014/095510
Other languages
English (en)
French (fr)
Inventor
谈太平
Original Assignee
好孩子儿童用品有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201410238519.3A external-priority patent/CN104044622A/zh
Priority claimed from CN201410720565.7A external-priority patent/CN104401380B/zh
Application filed by 好孩子儿童用品有限公司 filed Critical 好孩子儿童用品有限公司
Priority to EP14893273.4A priority Critical patent/EP3150462A4/en
Priority to US15/314,873 priority patent/US20170190349A1/en
Publication of WO2015180466A1 publication Critical patent/WO2015180466A1/zh

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B62B7/08—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis
    • B62B7/086—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis becoming smaller in all three dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B62B7/10—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable by folding down the body to the wheel carriage or by retracting projecting parts into the box-shaped body
    • B62B7/105—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable by folding down the body to the wheel carriage or by retracting projecting parts into the box-shaped body with the wheels staying in a fixed relation to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B62B7/062—Coupling unit between front wheels, rear wheels and handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B62B7/064—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable the handle bar being parallel to the front leg
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B62B7/068—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable by sliding a bushing along a rod, e.g. like folding means of an umbrella
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B62B7/08—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/003—Hand-propelled vehicles or sledges being foldable or dismountable when not in use with actuation mechanisms which drive the folding or unfolding operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/02—Hand-propelled vehicles or sledges being foldable or dismountable when not in use foldable widthwise
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/06—Foldable with a scissor-like mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B62B7/10—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable by folding down the body to the wheel carriage or by retracting projecting parts into the box-shaped body

Definitions

  • the present invention relates to a foldable stroller.
  • the frame of the foldable cart generally includes a side bracket on both sides, a bottom bracket and a rear bracket disposed between the side brackets, and each side bracket includes a front bracket, a lower bracket and a front bracket.
  • the upper end portion is rotatably connected to the push rod rod, the rear bracket and the connecting rod, and the upper end portion of the rear bracket is also rotatably connected with the push rod rod, the connecting rod is disposed between the front bracket and the rear bracket, and the front end portion is rotatably connected with the front bracket
  • the rear end portion is rotatably coupled to the rear bracket and extends substantially in a horizontal direction.
  • the existing cart needs to be multi-step operation when folding, and can not realize "one fold or fold", and the operation of collecting the vehicle is not convenient.
  • the existing cart is often connected by plastic parts between the front bracket and the push rod, plus The characteristics of the cart itself are prone to adduction after the weight of the frame, which affects the safety and comfort of use.
  • the existing cart must be reinforced by the connecting rod to strengthen the rigidity of the frame, and there are many rods.
  • the technical problem to be solved by the present invention is to provide a foldable stroller which is simple in structure and convenient in folding operation.
  • a foldable child umbrella handle including a frame having an unfolded state and a folded state, a front wheel assembly and a rear wheel assembly, disposed on the frame for a locking mechanism for locking the frame, the frame including a front bracket provided with the front wheel assembly at the bottom, a rear bracket provided with the rear wheel assembly at the bottom, and a seat post extending in the front-rear direction, the front bracket and the rear bracket
  • the three parts of the seatpost are connected to each other to form a triangular three-bar linkage mechanism. Two of the three connection relationships between the three components are rotationally connected, and the other is to align the two components by the sliding member. Slidably coupled, the slider is slidably disposed along a length of one of the two components that are slidably coupled and rotatably coupled to the other of the two components that are slidably coupled.
  • the frame includes side brackets on both sides, and the side brackets on each side include the front wheel bracket, the rear wheel bracket, and the seat post, respectively, and the cart frame further includes The support frame is connected between the side brackets on both sides and can be folded laterally.
  • the locking mechanism is configured to relatively lock the sliding member and the component slidably provided with the sliding member, and the sliding members of the side brackets of the two sides are respectively provided with an unlocking member for unlocking the locking mechanism, and a folding operation member The two ends are respectively connected with the unlocking members on both sides.
  • the unlocking member can be driven to unlock the locking mechanism and slide the sliding member to fold the front bracket, the rear bracket and the seat post. Simply pull the folding operation piece to unlock the frame and drive the entire frame to fold, so that the folding effect can be achieved.
  • the locking mechanism is preferably disposed between the slider and the component slidably provided with the slider.
  • the locking mechanism includes a locking member slidably disposed on the sliding member, a fitting portion disposed on the sliding member provided with the sliding member and lockingly engaged with the locking member, and the unlocking member can be driven by the folding operating member The locking member is slid to cooperate or disengage the mating portion.
  • the engaging portion may be, for example, a keyhole or a lock groove or the like.
  • the unlocking member is rotatably disposed on the sliding member, and the unlocking member is also rotatably coupled to the locking member.
  • the locking member is driven to slide to cooperate or separate from the engaging portion.
  • the unlocking member is rotatably connected to the sliding member through the first pivot shaft, and is rotatably connected to one end portion of the locking member through the second pivot shaft.
  • the first pivot shaft and the second pivot shaft are parallel, and the locking member is The opposite ends of the one end portion are cooperatively locked with the engaging portion.
  • the first pivot is closer to the lever member that is slidably provided with the slider than the second pivot.
  • both ends of the return torsion spring may be respectively coupled to the sliding member and the unlocking member or sleeved on the rotating shaft therebetween. Setting the reset torsion spring can automatically change the locking mechanism from the unlocked state to the locked state for easy operation.
  • the folding operation member is in the form of a belt.
  • the slider is a sliding sleeve.
  • the support frame includes a bottom bracket including two bottom struts that cross each other and are rotationally coupled at the intersection, one end of the bottom struts being rotatably coupled to one side of the front On the wheel bracket, the other end of the bottom stay is rotatably coupled to the rear wheel bracket on the other side.
  • the support frame includes a rear bracket that is capable of laterally folding the fold, the rear bracket being disposed between the rear wheel brackets on both sides, the rear bracket comprising:
  • first rod one end of the first rod is rotatably connected to an upper end of the longitudinal link, and the other end of the first rod is rotatably coupled to the rear wheel bracket on one side;
  • one end of the second strut is rotatably coupled to the upper end of the longitudinal link and the first strut, and the other end of the second strut is rotatably coupled to the other side On the rear wheel bracket;
  • one end of the third strut is rotatably coupled to a lower end of the longitudinal link and the second strut, and the other end of the third strut is rotatably coupled to one side of the On the rear wheel bracket;
  • a fourth strut one end of the fourth strut is rotatably coupled to a lower end of the longitudinal link, and the other end of the fourth strut is rotatably coupled to the rear wheel bracket on the other side;
  • connecting seat is slidably disposed on the longitudinal link along a length extending direction of the longitudinal link;
  • first slanting rod one end of the first slanting rod is rotatably connected to the connecting seat, and the other end of the first slanting rod is rotatably connected to the third struts;
  • one end of the second slanting rod is rotatably coupled to the connecting seat, and the other end of the second slanting rod is rotatably coupled to the fourth struts
  • the first strut and the second strut are deployed to form a barrier to the connecting seat when in a horizontal direction. Further, a pedal is provided at the junction of the longitudinal link, the third strut and the fourth strut.
  • the cart frame further comprises a backrest assembly, wherein the backrest assembly comprises two backrest bars on both sides, and a link set disposed between the two backrest bars for laterally folding, the backrest bar The lower end is rotatably coupled to the seat post.
  • the backrest assembly comprises two backrest bars on both sides, and a link set disposed between the two backrest bars for laterally folding, the backrest bar The lower end is rotatably coupled to the seat post.
  • the link set includes two diagonal struts that cross each other, the lower end of the diagonal struts is rotatably coupled to the lower end of the backrest bar on one side, and the upper end of the diagonal brace is rotatably coupled with the struts A rod, the other end of which is rotatably coupled to the upper end of the backrest rod on the other side.
  • the upper portion of the front wheel bracket is fixedly provided with a push handle, and the push handle is formed as a rod with the front wheel bracket.
  • the pusher and the front wheel bracket can be two fixedly connected rods, the two rods being coaxial and of the same diameter.
  • the upper end of the rear bracket is connected with the front bracket, and the front and rear ends of the seat post are respectively connected with the front bracket and the rear bracket.
  • the rear bracket and the front bracket are connected by the sliding member, and the sliding member is slidably disposed on the front bracket, and the sliding member and the rear bracket are pivotally connected by a pivot. More preferably, when folded, the slider slides up the front bracket.
  • the seat post is connected to the rear bracket or the front bracket by the sliding member, and the sliding member is slidably disposed on the rear bracket or the front bracket, and the sliding member and the seat post are pivotally connected .
  • the stroller's seat is formed by providing a cover on the seatpost.
  • the cloth sleeve has a first portion and a second portion.
  • the first portion is sleeved on the seat post to form a seat plate, and the upper portion of the second portion is coupled with the front brackets on both sides to form a backrest.
  • each of the two rotationally coupled components are preferably pivotally coupled by a pivot.
  • the present invention has the following advantages compared with the prior art: the stroller of the present invention, wherein the front bracket, the rear bracket and the seat post can form a stable triangular structure and push The frame of the vehicle is in a stable unfolded state.
  • the frame of the trolley has better rigidity, and the frame does not receive the weight after being loaded, and the front bracket can simultaneously fill the current bracket and the push rod.
  • the function is that the number of the rods is small and the structure is simpler, and the production cost is also greatly reduced compared with the conventional models.
  • Figure 1 is a perspective view (in an unfolded state) of the foldable stroller of Embodiment 1;
  • Figure 2 is a side elevational view of Figure 1;
  • Figure 3 is another perspective view of the stroller of Embodiment 1 (in an unfolded state);
  • Figure 4 is a perspective view of the cart of Figure 1 (during folding);
  • Figure 5 is a perspective view of the cart of Figure 1 (in a folded state);
  • FIG. 6 is a schematic structural view of the sliding member in the locked state in Embodiment 1;
  • Figure 8 is a schematic structural view (in an unfolded state) of the foldable stroller of Embodiment 2;
  • Figure 9 is a schematic structural view of the foldable stroller of Embodiment 2 (during folding);
  • Figure 10 is a schematic structural view (in a folded state) of the foldable stroller of Embodiment 2;
  • Figure 11 is a schematic structural view (in an unfolded state) of the foldable stroller of Embodiment 3;
  • Figure 12 is a schematic structural view of the foldable stroller of Embodiment 3 (during folding);
  • Figure 13 is a schematic structural view (in a folded state) of the foldable stroller of Embodiment 3;
  • Figure 14 is a schematic view showing the overall structure of a stroller according to Embodiment 4 of the present invention in an unfolded state;
  • Figure 15 is a schematic exploded view showing the structure of a stroller according to Embodiment 4.
  • Figure 16 is a schematic view showing the overall structure of the stroller shown in Figure 14 in a half-folded state
  • Figure 17 is a schematic view showing the overall structure of the stroller shown in Figure 14 in a folded state
  • the present embodiment provides a foldable stroller that includes a frame having an unfolded state and a collapsed state, a front wheel assembly 20, and a rear wheel assembly 30.
  • the frame specifically includes a side bracket 10 on both sides and symmetric, a support bracket disposed between the side brackets 10 on both sides and laterally foldable.
  • the side bracket 10 includes a front bracket 1 composed of one rod and having a front wheel assembly 20 at the bottom, a rear bracket 2 having a rear wheel assembly 30 at the bottom, a seat post 3 extending in the front-rear direction, and a front seat 3
  • the front bracket 1, the rear bracket 2, and the seat post 3 constitute a triangular three-bar linkage mechanism.
  • the front bracket 1 and the rear bracket 2 are connected by a slider 4.
  • the upper end portion of the rear bracket 2 is rotatably coupled to the slider 4 via a pivot.
  • the front and rear ends of the seat post 3 are respectively pivotally connected to the lower part of the front bracket 1 and the lower middle part of the rear bracket 2 by a pivot.
  • the cart further includes a locking mechanism provided for relatively locking the slider 4 and the front bracket 1, an unlocking member 42 provided on the slider 4 to unlock the locking mechanism, and a folding operating member 9 coupled to the unlocking member 42.
  • the folding operation member 9 has a belt shape, and both end portions thereof are respectively connected to the unlocking members 42 on both sides.
  • the sliding member 4 is specifically a sliding sleeve and is sleeved on the front bracket 1. When folded, the folding operation member 9 is pulled upward to drive the unlocking member 42 to unlock the locking mechanism and slide the sliding member 4 upward along the front bracket 1 to fold the front bracket 1, the rear bracket 2 and the seat post 3 together.
  • the support frame includes a bottom bracket 5 which is disposed between the front bracket 1 and the rear bracket 2 and which is laterally foldable, and a rear bracket 6 which is disposed between the rear brackets 2 on both sides and which can be laterally folded.
  • the bottom bracket 5 includes a pair of bottom stays 51 which are crossed and are rotatably connected at the intersection.
  • the front end portions of the two bottom stays 51 are respectively rotatably connected to the front brackets 1 on both sides, and the rear end portions are respectively respectively It is rotatably connected to the rear brackets 2 on both sides.
  • the rear bracket 6 includes a longitudinal link 65, a connecting seat 66 slidably disposed on the longitudinal link 65, an upper transverse strut, a lower cross strut below the upper cross strut, and a first diagonal strut 67.
  • the second slanting rod 68 includes a first struts 61 and a second struts 62 respectively rotatably connected to the rear brackets 2 at the outer ends, and the first struts 61 and the second struts 62
  • the inner end portion is rotatably connected to the upper end portion of the longitudinal link 65
  • the lower cross strut includes a third strut 63 and a fourth strut 64 which are respectively rotatably connected to the rear brackets 2 at the outer end portions, and the third branch
  • the inner end of the rod 63 and the fourth rod 64 are rotatably connected to the lower end of the longitudinal link 65, and the upper ends of the first slanting rod 67 and the second slanting rod 68 are respectively rotatably connected to the opposite sides of the connecting seat 66,
  • the lower end portion is rotatably coupled to the outer ends of the third strut 63 and the fourth strut 64, respectively.
  • a footrest 69 is provided at the junction
  • the connecting seat 66 slides to the upper end of the longitudinal link 65, the first strut 61 and the second strut 62 are relatively unfolded to substantially horizontally, forming a barrier to the connecting seat 66, and the third strut 63 and the longitudinal connecting rod A triangle is formed between the 65 and the first slanting rod 67, and another triangle is formed between the fourth struts 64, the longitudinal link 65 and the second slanting rod 68, and the third struts 63 and the fourth struts 64 are in the same straight line.
  • the rear bracket 6 is locked in an open state for maintaining a fixed spacing between the side brackets 10 on the left and right sides of the frame; when the third pole 63 and the fourth pole 64 rotate relative to each other, the connecting seat 66 is along When the longitudinal link 65 slides down, the first inclined rod 67 and the second inclined rod 68 rotate correspondingly, and then gradually closes with the third strut 63, the fourth strut 64 and the longitudinal link 65, the rear brace 6 gradually folds and folds.
  • the side brackets 10 on both sides are gradually gathered.
  • a locking mechanism for locking the cart frame can also lock the rear bracket 6.
  • the seat of the stroller is formed by providing a cover on the seat post 3.
  • the cloth cover has a first portion 31 and a second portion 32.
  • the first portion 31 is sleeved on the seat post 3 to form a seat plate, and the upper portion of the second portion 32 is coupled to the front brackets 1 on both sides to form a backrest.
  • the locking mechanism is preferably provided between the slider 4 and the front bracket 1.
  • the locking mechanism includes a locking member 41 slidably disposed on the slider 4, a locking hole 40a or a locking groove provided on the front bracket 1 that can be locked with the locking member 41, or other capable
  • the locking portion cooperates with the locking member 41.
  • the unlocking member 42 is rotatably coupled to the slider 4 and the locking member 41 via the parallel first pivot a and the second pivot b, respectively, wherein the first pivot a is closer to the front bracket 1 than the second pivot b.
  • the locking member 41 can be slidably engaged or disengaged from the locking hole 40a.
  • the locking member 41 is slid in the direction away from the lock hole 40a by the unlocking member 42 to be unlocked from the lock hole 40a, and vice versa, when the unlocking member 42 is opposite to the F direction.
  • the locking member 41 When the direction is rotated, the locking member 41 is slid toward the lock hole 40a by the unlocking member 42 so that the lock member 41 is inserted into the lock hole 40a for locking. Further, between the slider 4 and the unlocking member 42, a return torsion spring whose both end portions are respectively connected to the slider 4 and the unlocking member 42 is provided. Under the action of the reset torsion spring, the locking mechanism can automatically switch from the unlocked state to the locked state.
  • the unlocking members 42 on the two sides are connected by the folding operation member 9 to fold up the operating member 9.
  • the unlocking member 42 rotates in the direction of F with the first pivot a as an axis, and drives the locking member 41 to slide from the locking hole 40a. The middle slides out so that both sides are unlocked at the same time, and then the slider 4 is driven to slide together.
  • the locking mechanism and the unlocking member 42 of this example are not only simple in structure but also convenient in operation.
  • the folding process of the stroller of this example is as follows: Referring to Fig. 3, the rear bracket 6 is first unlocked in the upward direction, that is, the D direction, and then the folding operation member 9 is moved in the upward direction to unlock the slider 4, after which the slider 4 is The A direction (in the upward direction of the front bracket 1) slides, and the rear bracket 2 and the seat post 3 are rotated relative to the front bracket 1 to gradually close with the front bracket 1.
  • the rear bracket 6 is gradually gathered in the left and right direction to drive the bottom bracket 5 It is folded in the left and right direction, as shown in Fig. 4, and finally folded to form a state as shown in Fig. 5.
  • the folding operation is very convenient, and the folding operation is simple, the structure is simpler, the setting is more convenient, the rigidity of the whole vehicle is good, and the weight of the frame is not accepted after receiving the weight. .
  • the present embodiment provides a foldable stroller, see FIGS. 8-10, which is substantially the same as Embodiment 1, except that the front end portion of the seat post 3 is connected to the lower portion of the front bracket 1 by a slider 4, the seat post 3 and the rear bracket 2, the front bracket 1 and the rear bracket 2 are respectively pivotally connected by a pivot.
  • the slider 4 is slidable along the extending direction of the front bracket 1 and is pivotally coupled to the seatpost 3 by a pivot.
  • the present embodiment provides a foldable stroller, see FIGS. 11-13, which is substantially the same as Embodiment 1, except that the rear end portion of the seat post 3 is connected to the rear bracket 2 via a slide 4, and the seat post 3 Between the front bracket 1 and the front bracket 1 and the rear bracket 2 are respectively pivotally connected by a pivot.
  • the slider 4 is slidable along the extending direction of the rear bracket 2, and is pivotally coupled to the seatpost 3 by a pivot.
  • a locking mechanism for locking the two relative to each other is provided between the slider 4 and the rear bracket 2, and the structure and principle of the locking mechanism are the same as those in the first embodiment.
  • the cart according to the present embodiment is similar to the cart of the embodiment 1 as shown in Figs. 14-17, and the main difference is that the cart of the embodiment has the folding operation member removed and the backrest is added to the frame.
  • Component 7 As shown in FIG. 15, the backrest assembly 7 includes two backrest bars 71 on both sides, and a link set which is laterally folded between the two backrest bars 71. The two backrest bars 71 are parallel to each other, and the backrest bars 71 are The lower end is rotatably coupled to the seatpost 3.
  • the connecting rod set includes two diagonal struts 72 that cross each other. The lower end of the diagonal struts 72 is rotatably coupled to the lower end of the one side backrest 71.
  • the upper end of the diagonal struts 72 is rotatably coupled to the flat struts 73.
  • the other end of the lever 73 is rotatably coupled to the upper end of the other side backrest lever 71.
  • the bottom bracket 5 and the rear bracket 6 are deployed such that the side brackets 10 on both sides are mutually deployed, and the side brackets 10 on each side are front and front.
  • a stable triangular structure is formed between the bracket 1, the rear bracket 2 and the seat post 3, and the side bracket is in a stable unfolded state.
  • the locking of the locking mechanism is first released, that is, the locked state of the rear bracket 6 is released, and the locking between the slider 4 and the front bracket 1 is released, and the slider 4 is along the front bracket 1 Pulling up, driving the rear bracket 2, the seat post 3 rotates relative to the front bracket 1 and gradually closes with the front bracket 1, the rear bracket 6 gradually gathers in the left and right direction, drives the bottom bracket 5 to be laterally gathered, and the backrest assembly 7 is gradually gathered in the lateral direction.
  • the final folding is formed as shown in FIG. 17, and the folded structure is compact and takes up less space.

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Abstract

一种可折叠地儿童推车，包括车架、前轮组件（20）及后轮组件（30）、设置于所述车架上用于将车架锁定的锁定机构，车架包括前支架（1）、后支架（2）以及座杆（3），所述前支架（1）、后支架（2）、座杆（3）三个部件彼此连接构成三角形的三连杆机构，所述三个部件之间的三个连接关系中有两处为转动连接，另一处通过滑动件（4）来相对滑动地连接，所述滑动件（4）沿着相连接地两个部件中地一个地长度方向能够滑动地设置，并与另一个转动连接。该推车收折方便，且结构简单、展开时刚性好。

Description

可折叠的儿童推车
技术领域
本发明涉及一种可折叠的儿童推车。
背景技术
目前市面上的婴儿/儿童推车主要有二种，一种的普通的推车，另一种是轻便型的可折叠推车。与普通推车相比，可折叠推车很方便，折叠后很小，适合外出用，特别是搭乘其他交通工具时，比如公共汽车，非常方便。
现有技术中，可折叠推车的车架通常包括位于两侧的侧支架、设置在两侧侧支架之间的底撑架和后撑架，各侧支架包括前支架、下部与前支架的上端部相转动连接的推杆杆、后支架和连杆，后支架的上端部也与推杆杆相转动连接，连杆设于前支架和后支架之间，其前端部与前支架转动连接，后端部与后支架转动连接，且大致沿水平方向延伸。现有的推车折叠时需要多步操作，不能实现“一拎即折”，收车操作不够方便，同时，现有的推车其前支架和推杆之间往往通过塑胶件连接，加上推车本身的特性，在车架负重后容易出现内收的情况，影响使用安全性和舒适性。此外，现有的推车必须通过连杆设置来加强车架的刚性，杆件较多。
发明内容
本发明所要解决的技术问题是提供一种结构简单、折叠操作方便的可折叠儿童推车。
为解决以上技术问题，本发明采用如下技术方案：一种可折叠儿童伞把车，包括具有展开状态和折叠状态的车架、前轮组件及后轮组件、设置于所述车架上用于将车架锁定的锁定机构，车架包括底部设有所述前轮组件的前支架、底部设有所述后轮组件的后支架以及沿前后方向延伸的座杆，所述前支架、后支架、座杆三个部件两两彼此连接构成三角形的三连杆机构，所述三个部件之间的三个连接关系中有二个为转动连接，另一个为通过滑动件来将两个部件相对滑动地连接，该滑动件沿着相对滑动地连接的二个部件中的一个的长度方向能够滑动地设置，并与所述相对滑动地连接的二个部件中的另一个转动连接。
在一具体实例中，车架包括位于两侧的侧支架，每侧的所述侧支架分别包括所述前轮支架、所述后轮支架及所述座杆，所述推车车架还包括连接在两侧所述侧支架之间且可横向收拢折叠的支撑架。
进一步地，所述锁定机构用于将滑动件和滑动地设有该滑动件的部件相对锁定，两侧的侧支架的滑动件上分别设置有用于使锁定机构解锁的解锁件，一折叠操作件的两端部分别与两侧的解锁件相连，通过操作折叠操作件可以带动解锁件将锁定机构解锁并使滑动件滑动从而使前支架、后支架及座杆折叠靠拢。只需拉动折叠操作件就可以使车架解锁并带动整个车架收折，以实现一拎即折的效果。
根据本发明，对于锁定机构没有特别限制。然锁定机构优选设置在滑动件与滑动地设有该滑动件的部件之间。
进一步地，锁定机构包括滑动地设于滑动件上的锁定件、设置在滑动地设有该滑动件的部件上且与锁定件相配合锁定的配合部，解锁件在折叠操作件的带动下能够使锁定件滑动从而与配合部相配合或脱离配合。
进一步地，所述配合部可以为例如锁孔或锁槽等。
进一步地，所述解锁件可转动地设置在滑动件上，且解锁件还与锁定件转动连接。当解锁件相对滑动件转动时，就会带动锁定件滑动，从而与配合部配合或分离。
根据一个具体方面，所述解锁件通过第一枢轴与滑动件转动连接、通过第二枢轴与锁定件的一端部转动连接，第一枢轴、第二枢轴相平行，锁定件的与所述一端部相对的端部与配合部配合锁定。优选地，第一枢轴比第二枢轴更靠近所述滑动地设有滑动件的杆件。
进一步地，优选在滑动件与解锁件之间设复位扭簧，具体地，复位扭簧的两端部可以分别与滑动件和解锁件连接或套在二者之间的转轴上。设置复位扭簧可以使锁定机构自动从解锁状态转换为锁定状态，方便操作。
优选地，折叠操作件为带状。
优选地，滑动件为滑套。
在一具体实施方案中，支撑架包括底撑架，所述底撑架包括相互交叉且在交叉处转动连接的两根底撑杆，所述底撑杆的一端转动地连接在一侧所述前轮支架上，所述底撑杆的另一端转动地连接在另一侧的所述后轮支架上。
在一特定实例中，支撑架包括能够横向收拢折叠的后撑架，所述后撑架设于两侧的所述后轮支架之间，所述后撑架包括：
纵连杆；
第一支杆，所述第一支杆的一端与所述纵连杆的上端相转动连接，所述第一支杆的另一端转动地连接在一侧的所述后轮支架上；
第二支杆，所述第二支杆的一端与所述纵连杆的上端及所述第一支杆相转动连接，所述第二支杆的另一端转动地连接在另一侧的所述后轮支架上；
第三支杆，所述第三支杆的一端与所述纵连杆的下端及所述第二支杆相转动连接，所述第三支杆的另一端转动地连接在一侧的所述后轮支架上；
第四支杆，所述第四支杆的一端与所述纵连杆的下端相转动连接，所述第四支杆的另一端转动地连接在另一侧的所述后轮支架上；
连接座，所述连接座沿所述纵连杆的长度延伸方向滑动地设于所述纵连杆上；
第一斜杆，所述第一斜杆的一端转动地连接在所述连接座上，所述第一斜杆的另一端转动地连接在所述第三支杆上；
第二斜杆，所述第二斜杆的一端转动地连接在所述连接座上，所述第二斜杆的另一端转动地连接在所述第四支杆上，
所述第一支杆、所述第二支杆展开至沿水平方向时形成对所述连接座的阻挡。进一步地，在纵连杆、第三支杆和第四支杆连接处设有脚踏。
优选地，推车车架还包括靠背组件，所述靠背组件包括位于两侧的两根靠背杆、设于两根所述靠背杆之间可横向收折的连杆组，所述靠背杆的下端转动地连接在所述座杆上。
更优选地，连杆组包括相互交叉的两根斜撑杆，所述斜撑杆的下端转动地连接在一侧所述靠背杆的下端，所述斜撑杆的上端转动地连接有平撑杆，所述平撑杆的另一端转动地连接在另一侧所述靠背杆的上端。
在一具体实施方案中，前轮支架的上部固定地设置有推把，所述推把与所述前轮支架成一根杆件。
在另一具体实施方案中。推把与前轮支架可以为两根固定连接的杆件，两根杆件共轴线且直径相同。
进一步地，后支架的上端部与前支架连接，座杆的前后端部分别与前支架和后支架连接，当车架处于展开状态时，前支架、后支架的连接处高于座杆与前支架、座杆与后支架的连接处。
根据一个具体且优选方面，所述后支架、前支架之间通过所述滑动件连接，且滑动件滑动地设置在前支架上，滑动件与后支架通过枢轴相转动连接。更优选地，折叠时，滑动件沿着前支架向上滑动。
根据又一具体方面，所述座杆与后支架或前支架之间通过所述滑动件连接，且滑动件滑动地设置在后支架或前支架上，滑动件与座杆通过枢轴相转动连接。
根据本发明的一个具体方面，儿童推车的座位通过在座杆上设置布套形成。布套具有第一部分和第二部分，第一部分套设在座杆上形成座板，第二部分的上部与两侧的前支架连接形成靠背。
根据本发明的实施方案中，每两个转动连接的部件均优选通过枢轴相转动连接。
由于以上技术方案的实施，本发明与现有技术相比具有如下优点：本发明的儿童推车，其中前支架、后支架、座杆三个杆件之间能够形成稳定的三角形结构而使得推车车架处于稳定的展开状态，相比传统的推车结构，该推车车架具有更好的刚性，车架负重后不会内收，同时，前支架可同时充当前支架与推杆的作用，其杆件数量少，结构更为简单，相比传统车型其生产成本也大幅下降。
附图说明
图1为实施例1的可折叠儿童推车的立体示意图（处于展开状态）；
图2为图1的侧视示意图；
图3为实施例1的儿童推车的又一立体示意图（处于展开状态）；
图4为图1推车的立体示意图（折叠过程中）；
图5为图1推车的立体示意图（处于折叠状态）；
图6为实施例1中滑动件处于锁定状态时的结构示意图；
图7为实施例1中滑动件处于锁定状态时的结构示意图；
图8为实施例2的可折叠儿童推车的结构简图（处于展开状态）；
图9为实施例2的可折叠儿童推车的结构简图（折叠过程中）；
图10为实施例2的可折叠儿童推车的结构简图（处于折叠状态）；
图11为实施例3的可折叠儿童推车的结构简图（处于展开状态）；
图12为实施例3的可折叠儿童推车的结构简图（折叠过程中）；
图13为实施例3的可折叠儿童推车的结构简图（处于折叠状态）；
图14为根据本发明实施例4的儿童推车处于展开状态时的整体结构示意图；
图15为根据实施例4的儿童推车的结构分解示意图；
图16为图14所示儿童推车处于半折叠状态时的整体结构示意图；
图17为图14所示的儿童推车处于折叠状态时的整体结构示意图；
其中：20、前轮组件；30、后轮组件；31、第一部分；32、第二部分；10、侧支架；1、前支架；40a、锁孔；2、后支架；3、座杆；8、推把；69、脚踏； 4、滑动件；41、锁定件；42、解锁件；9、折叠操作件；5、底撑架；51、底撑杆；6、后撑架；65、纵连杆；66、连接座；67、第一斜杆；68、第二斜杆；61、第一支杆；62、第二支杆；63、第三支杆；64、第四支杆；a、第一枢轴；b、第二枢轴。
具体实施方式
实施例1
参见图1至图7，本例提供一种可折叠儿童推车，其包括具有展开状态和折叠状态的车架、前轮组件20、后轮组件30。车架具体包括位于两侧且对称的侧支架10、设于两侧的侧支架10之间且可横向收折的支撑架。
进一步地，侧支架10包括由一根杆件构成且底部设有前轮组件20的前支架1、底部设有后轮组件30的后支架2、沿前后方向延伸的座杆3以及设于前支架1上端部的推把8。前支架1、后支架2、座杆3构成三角形的三连杆机构。在图示的本实施例中，具体地，前支架1、后支架2之间通过滑动件4连接。后支架2的上端部与滑动件4通过一枢轴可转动地连接。座杆3的前后端部分别通过枢轴与前支架1的下部、后支架2的中下部转动连接，当车架处于展开状态时，前支架1、后支架2的连接处高于座杆3与前支架1、座杆3与后支架2的连接处。
推车还包括设置用于将滑动件4和前支架1相对锁定的锁定机构、设置在滑动件4上使锁定机构解锁的解锁件42、与解锁件42连接的折叠操作件9。具体地，折叠操作件9为带状，其两端部分别与两侧的解锁件42连接。滑动件4具体为滑套，套设在前支架1上。折叠时，向上拉动折叠操作件9，可带动解锁件42使锁定机构解锁并使滑动件4沿前支架1向上滑动，使前支架1、后支架2及座杆3折叠靠拢。
进一步地，支撑架包括设置在前支架1与后支架2之间可横向收折的底撑架5和设置在两侧的后支架2之间且可横向收折的后撑架6。
本例中，底撑架5包括相交叉并在交叉处相转动连接的一对底撑杆51，两个底撑杆51的前端部分别与两侧的前支架1转动连接、后端部分别与两侧的后支架2转动连接。
本例中，后撑架6包括纵连杆65、能够滑动地设置在纵连杆65上的连接座66、上横撑杆、位于上横撑杆下方的下横撑杆、第一斜杆67、第二斜杆68，上横撑杆包括外端部分别与两侧的后支架2转动连接的第一支杆61和第二支杆62，第一支杆61、第二支杆62的内端部与纵连杆65的上端部相转动连接，下横撑杆包括外端部分别与两侧的后支架2转动连接的第三支杆63和第四支杆64，第三支杆63、第四支杆64的内端部与纵连杆65的下端部相转动连接，第一斜杆67和第二斜杆68的上端部分别与连接座66的相对二侧转动连接、下端部分别与第三支杆63和第四支杆64的外端部转动连接。在纵连杆65、第三支杆63和第四支杆64连接处设有脚踏69。
当连接座66滑至纵连杆65的上端时，第一支杆61、第二支杆62相对展开至基本沿水平方向，形成对连接座66的阻挡，第三支杆63、纵连杆65及第一斜杆67之间形成三角形，且第四支杆64、纵连杆65及第二斜杆68之间形成另一三角形，第三支杆63与第四支杆64沿同一直线分布，该后撑架6即被锁定在打开状态，用于保持车架左右两侧的侧支架10之间间距固定；当第三支杆63与第四支杆64相互转动，连接座66沿纵连杆65下滑，第一斜杆67、第二斜杆68相应转动，继而逐渐与第三支杆63、第四支杆64及纵连杆65靠拢时，该后撑架6逐渐收拢折叠，两侧的侧支架10逐渐收拢。用于锁定推车车架的锁定机构也可对该后撑架6锁定。
本例中，儿童推车的座位通过在座杆3上设置布套形成。布套具有第一部分31和第二部分32。第一部分31套设在座杆3上形成座板，第二部分32的上部与两侧的前支架1连接形成靠背。
本发明对于上述的锁定机构没有特别限制，可以采用本领域常用的那些设置方式。具体到本例中，锁定机构优选设在滑动件4与前支架1之间。具体地，参见图6和图7，锁定机构包括滑动地设置在滑动件4上的锁定件41、设置在前支架1上开能够与锁定件41配合锁定的锁孔40a或锁槽或其他能够与锁定件41配合锁定的配合部，当锁定件41插设在锁孔40a内时，锁定机构锁定，滑动件4被锁定，不能滑动，当锁定件41脱离锁孔40a时，锁定机构解锁，滑动件4可以滑动。解锁件42分别通过平行的第一枢轴a、第二枢轴b与滑动件4和锁定件41相转动连接，其中第一枢轴a比第二枢轴b更靠近前支架1。当解锁件42以第一枢轴a为轴线转动时，能够带动锁定件41滑动的与锁孔40a配合或脱离。当向着图6中所示的F向转动时，锁定件41在解锁件42的带动下向着远离锁孔40a的方向滑动从而脱离锁孔40a实现解锁，反之，当解锁件42向着与F方向相反的方向转动时，锁定件41在解锁件42的带动下向着靠近锁孔40a的方向滑动从而锁定件41插入到锁孔40a内实现锁定。此外，在滑动件4与解锁件42之间设有两端部分别与滑动件4和解锁件42连接的复位扭簧。在复位扭簧的作用下，锁定机构可以自动从解锁状态转换到锁定状态。两侧的解锁件42之间通过所述折叠操作件9连接，向上拎折叠操作件9，解锁件42以第一枢轴a为轴线沿F向转动，带动锁定件41滑动而从锁孔40a中滑出，从而使两侧同时解锁，然后带动滑动件4一起滑动。本例的锁定机构和解锁件42不仅结构简单且操作方便。
没有特别说明时，以上所述二个部件之间的转动连接均为通过枢轴相转动连接。
本例儿童推车折叠过程如下：参见图3，先将后撑架6沿向上方向即D方向解锁，然后拎折叠操作件9沿向上方向运动从而使滑动件4解锁，之后，滑动件4沿A方向（沿着前支架1向上的方向）滑动，带动后支架2、座杆3相对前支架1转动而逐渐与前支架1靠拢，后撑架6沿左右方向逐渐收拢，带动底撑架5沿左右方向收拢，如图4所示，最终折叠形成如图5所示状态。
综上，本例推车与已有的推车相比，折叠操作非常方便，一拎即折，同时，结构更加简单，设置更方便，整车的刚性好，车架负重后不会内收。
实施例2
本例提供一种可折叠儿童推车，参见图8-10，其基本同实施例1，不同的是，其中，座杆3的前端部与前支架1的下部通过滑动件4连接，座杆3与后支架2之间、前支架1与后支架2之间分别通过枢轴相转动连接。滑动件4能够沿着前支架1的延伸方向滑动，且与座杆3之间通过枢轴相转动连接。
该例推车折叠时，使后撑架解锁后，拉动折叠操作件使锁定机构解锁，之后，拉动滑动件4沿前支架1向上滑动，带动座杆3相对后支架2转动而逐渐向后支架2靠拢，同时带动后支架2相对前支架1转动而逐渐与前支架1靠拢，后撑架沿左右方向逐渐收拢，带动底撑架沿左右方向收拢，最终折叠形成如图10所示状态。该例推车同样具有“一拎即折”的效果。
实施例3
本例提供一种可折叠儿童推车，参见图11-13，其基本同实施例1，不同的是，其中，座杆3的后端部与后支架2通过滑动件4连接，座杆3与前支架1之间、前支架1与后支架2之间分别通过枢轴相转动连接。滑动件4能够沿着后支架2的延伸方向滑动，且与座杆3之间通过枢轴相转动连接。在滑动件4与后支架2之间设有将二者相对锁定的锁定机构，该锁定机构的结构和原理同实施例1。
该例推车折叠时，使后撑架解锁后，拉动折叠操作件带动解锁件使锁定机构解锁，之后，拉动滑动件4沿后支架2向下滑动，带动后支架2、座杆3相对前支架1转动而逐渐与前支架1靠拢，后撑架沿左右方向逐渐收拢，最终折叠形成如图13所示状态。该例推车同样具有“一拎即折”的效果。
实施例4
根据本实施例的推车如图14-17所示，其结构与实施例1的推车相似，主要区别在于，本实施例的推车取消了折叠操作件，且在车架上增加了靠背组件7。见图15所示，靠背组件7包括位于两侧的两根靠背杆71、设于两根靠背杆71之间可横向收折的连杆组，两根靠背杆71相互平行，靠背杆71的下端转动地连接在座杆3上。连杆组包括相互交叉的两根斜撑杆72，斜撑杆72的下端转动地连接在一侧靠背杆71的下端，斜撑杆72的上端转动地连接有平撑杆73，该平撑杆73的另一端转动地连接在另一侧靠背杆71的上端。当车架沿左右方向收拢时，上述连杆组随之收折而使得靠背杆71沿横向收拢。
本实施例中的推车的车架展开时，如图14所示，底撑架5、后撑架6展开使得两侧的侧支架10之间相互展开，每侧的侧支架10上，前支架1、后支架2、座杆3之间构成一稳定的三角形结构，该侧支架处于稳定的展开状态。当需要将该推车车架折叠起来时，首先解除锁定机构的锁定，即解除后撑架6的锁定状态，并解除滑动件4与前支架1之间的锁定，滑动件4沿前支架1上滑，带动后支架2、座杆3相对前支架1转动而逐渐与前支架1靠拢，后撑架6沿左右方向逐渐收拢，带动底撑架5横向收拢，靠背组件7也在横向逐渐收拢，如图3所示，最终折叠形成如图17所示状态，折叠后的结构紧凑，占用空间较小。需要将该推车车架展开时，则仅需按住推把8，踢动后轮30将后支架2相对前支架2向后转动，带动滑动件4沿前支架1下滑，并带动座杆3相对转动，直至滑动件4锁定在前支架1上，前支架1、后支架2及座杆3之间形成三角形结构位置，侧支架10展开，在侧支架10展开的同时，底撑架5、后撑架6及靠背组件7也逐渐沿左右方向展开，直至后撑架6达到锁定状态，两侧的侧支架10相对固定，车架处于稳定的展开状态。上述推车车架的折叠与展开操作简单方便。
以上对本发明做了详尽的描述，其目的在于让熟悉此领域技术的人士能够了解本发明的内容并加以实施，并不能以此限制本发明的保护范围，凡根据本发明的精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围内。

Claims (18)

1、一种可折叠的儿童推车，包括具有展开状态和折叠状态的车架、前轮组件及后轮组件、设置于所述车架上用于将车架锁定的锁定机构，各所述车架包括底部设有所述前轮组件的前支架、底部设有所述后轮组件的后支架以及沿前后方向延伸的座杆，其特征在于：所述前支架、后支架、座杆三个部件两两彼此连接构成三角形的三连杆机构，所述三个部件之间的三个连接关系中有二个连接为转动连接，另一个连接为通过滑动件来相对滑动地连接，所述滑动件沿着相对滑动地连接的二个部件中的一个的长度方向能够滑动地设置，并与所述相对滑动地连接的二个部件中的另一个转动连接。
2、根据权利要求1所述的儿童推车，其特征在于：车架包括位于两侧的侧支架，每侧的所述侧支架分别包括所述前轮支架、所述后轮支架及所述座杆，所述推车车架还包括连接在两侧所述侧支架之间且可横向收拢折叠的支撑架。
3、根据权利要求2所述的儿童推车，其特征在于：所述锁定机构用于将所述滑动件和滑动地设有所述滑动件的部件相对锁定，两侧的侧支架的所述滑动件上分别设置有用于使所述锁定机构解锁的解锁件，一折叠操作件的两端部分别与两侧的所述解锁件相连，通过操作所述折叠操作件可以带动解锁件将所述锁定机构解锁并使所述滑动件滑动从而使所述前支架、后支架及座杆折叠靠拢。
4、根据权利要求3所述的儿童推车，其特征在于：所述锁定机构包括滑动地设于所述滑动件上的锁定件、设置在滑动地设置所述滑动件的部件上且与所述锁定件相配合锁定的配合部，所述解锁件在所述折叠操作件的带动下能够使所述锁定件与所述配合部配合或分离。
5、根据权利要求4所述的儿童推车，其特征在于：所述配合部为锁孔或锁槽。
6、根据权利要求4所述的儿童推车，其特征在于：所述解锁件可转动地设置在所述滑动件上，且所述解锁件还与所述锁定件转动连接。
7、根据权利要求6所述的儿童推车，其特征在于：所述解锁件通过第一枢轴与所述滑动件转动连接、通过第二枢轴与所述锁定件的一端部转动连接，所述第一枢轴、第二枢轴相平行，所述锁定件的与所述一端部相对的端部与所述配合部配合锁定。
8、根据权利要求3所述的儿童推车，其特征在于：所述折叠操作件为带状。
9、 根据权利要求1所述的儿童推车，其特征在于：所述滑动件为滑套。
10、根据权利要求2所述的儿童推车，其特征在于：所述支撑架包括底撑架，所述底撑架包括相互交叉且在交叉处转动连接的两根底撑杆，所述底撑杆的一端转动地连接在一侧所述前轮支架上，所述底撑杆的另一端转动地连接在另一侧的所述后轮支架上。
11、根据权利要求2所述的儿童推车，其特征在于：所述支撑架包括能够横向收拢折叠的后撑架，所述后撑架设于两侧的所述后轮支架之间，所述后撑架包括：
纵连杆；
第一支杆，所述第一支杆的一端与所述纵连杆的上端相转动连接，所述第一支杆的另一端转动地连接在一侧的所述后轮支架上；
第二支杆，所述第二支杆的一端与所述纵连杆的上端及所述第一支杆相转动连接，所述第二支杆的另一端转动地连接在另一侧的所述后轮支架上；
第三支杆，所述第三支杆的一端与所述纵连杆的下端及所述第二支杆相转动连接，所述第三支杆的另一端转动地连接在一侧的所述后轮支架上；
第四支杆，所述第四支杆的一端与所述纵连杆的下端相转动连接，所述第四支杆的另一端转动地连接在另一侧的所述后轮支架上；
连接座，所述连接座沿所述纵连杆的长度延伸方向滑动地设于所述纵连杆上；
第一斜杆，所述第一斜杆的一端转动地连接在所述连接座上，所述第一斜杆的另一端转动地连接在所述第三支杆上；
第二斜杆，所述第二斜杆的一端转动地连接在所述连接座上，所述第二斜杆的另一端转动地连接在所述第四支杆上，
所述第一支杆、所述第二支杆展开至沿水平方向时形成对所述连接座的阻挡。
12、根据权利要求1所述的儿童推车，其特征在于：所述推车车架还包括靠背组件，所述靠背组件包括位于两侧的两根靠背杆、设于两根所述靠背杆之间可横向收折的连杆组，所述靠背杆的下端转动地连接在所述座杆上。
13、根据权利要求12所述的儿童推车，其特征在于：所述连杆组包括相互交叉的两根斜撑杆，所述斜撑杆的下端转动地连接在一侧所述靠背杆的下端，所述斜撑杆的上端转动地连接有平撑杆，所述平撑杆的另一端转动地连接在另一侧所述靠背杆的上端。
14、根据权利要求1所述的儿童推车，其特征在于：所述前轮支架的上部固定地设置有推把，所述推把与所述前轮支架成一根杆件。
15、根据权利要求14所述的儿童推车，其特征在于：所述推把与前轮支架为两根固定连接的杆件，两根杆件共轴线且直径相同。
16、根据权利要求1至15中任意一项所述的儿童推车，其特征在于：所述后支架的上端部与所述前支架连接，所述的座杆的前后端部分别与所述前支架和后支架连接，当车架处于展开状态时，所述前支架、后支架的连接处高于所述座杆与前支架、所述座杆与后支架的连接处。
17、根据权利要求1所述的儿童推车，其特征在于：所述后支架、前支架之间通过所述滑动件连接，且滑动件滑动地设置在所述前支架上，滑动件与后支架相转动连接。
18、根据权利要求1所述的儿童推车，其特征在于：所述座杆与所述后支架或前支架之间通过所述滑动件相对滑动地连接，且滑动件能够滑动地设置在所述后支架或前支架上，滑动件与座杆相转动连接。
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