WO2020124626A1

WO2020124626A1 - Rapid folding pram frame

Info

Publication number: WO2020124626A1
Application number: PCT/CN2018/123723
Authority: WO
Inventors: 钟德良
Original assignee: 中山市金亮儿童用品有限公司
Priority date: 2018-12-18
Filing date: 2018-12-26
Publication date: 2020-06-25
Also published as: CN109532996A; CN109532996B

Abstract

A rapid folding pram frame, comprising a handle push rod (1), side handrail tubes (2), a front foot bar (5), and a rear foot bar (7), the handle push rod (1) being sleeved in the side handrail tubes (2); a front wheel (50) is provided on the front part of the front foot bar (5), the upper end of the front foot bar (5) being hinged to the lower end of the side handrail tubes (2), a locking sliding block (6) being disposed in the front foot bar (5), a rear wheel (70) being disposed on the rear part of the rear foot bar (7), the front end of the rear foot bar (7) being hinged to the middle part of the front foot bar (5), and a connecting member (8) being hinged between the front part of the rear foot bar (7) and the lower part of the side handrail tubes (2).

Description

Baby carriage frame capable of quickly collecting vehicles

【Technical field】

The invention relates to a stroller frame capable of quickly collecting vehicles.

【Background technique】

A stroller is a tool cart designed to provide convenience for children's outdoor activities, which greatly reduces the burden of carrying children when people go out. In order to facilitate carrying and transportation, existing strollers can generally be folded to reduce the occupation of space. However, most of the traditional baby carriages need to manually unlock multiple unlocking devices to realize the car collection, and the car collection operation is quite cumbersome.

[Invention content]

The technical problem to be solved by the present invention is to provide a stroller frame capable of quickly retracting the car to make the collecting operation more convenient.

The purpose of the present invention is achieved as follows:

A stroller frame capable of quickly retracting a car includes a handle push rod, a side armrest tube, a front foot rod, and a rear foot rod. The handle push rod is sleeved in the side armrest tube and can slide up and down along its axis; The front part of the front foot rod is provided with a front wheel, the upper end of the front foot rod is hinged with the lower end of the side armrest tube, and the front foot rod is provided with a handle push rod along the side armrest tube A locking slider that is pressed to unlock when sliding down, and the locking slider can elastically expand and contract along the axial direction of the front foot rod and can be snapped between the front foot rod and the side armrest tube to make the The front foot rod and the side armrest tube are unfolded and locked with each other; the rear end of the rear foot rod is provided with a rear wheel, the front end of the rear foot rod is hinged with the middle of the front foot rod, and the front part of the rear foot rod is A connecting member is hinged between the lower parts of the side armrest tube to form a four-bar mechanism between the side armrest tube, the front foot rod, the rear foot rod and the connecting member so that when the side armrest tube and the front foot rod are unfolded and locked At this time, the rear foot lever is also deployed and locked.

The present invention adopts the above structure, because a four-bar mechanism is formed between the side armrest tube, the front foot rod, the rear foot rod, and the connecting member. When the stroller frame is deployed, the locking slider is elastically engaged between the side armrest tube and the front foot rod to Extend and lock the side armrest tube and the front foot rod, at this time the rear foot rod and the connecting piece are also locked, so that the stroller can be deployed stably and firmly; when the stroller frame is not used and it needs to be folded, only Need to push the handle down to make it slide down the side armrest tube to press the locking slider. When the locking slider is fully retracted into the front foot rod and completely disengaged from the side armrest tube, unlocking is achieved. Open the handle putter, the handle putter will automatically turn back and close under the action of gravity, and at this time, under the joint action of the connecting piece, the rear foot rod rushes forward and presses down the front foot rod under the action of gravity And the rear foot rod is turned to close and fold, so as to realize the automatic and rapid closing of the stroller frame, and its operation is very convenient and fast.

A stroller frame capable of quickly retracting a vehicle as described above further includes a seat post and a backrest rod, the middle of the seatpost is hinged with the middle of the side armrest tube, and the upper part of the backrest rod is The middle part of the handle push rod is hinged, the rear part of the seat post is hinged with the lower end of the backrest rod, when the handle push rod slides down along the side armrest tube, the backrest rod moves downward with it and The rear part of the seatpost is pressed, so that the seatpost rotates closer to the side armrest tube, and finally the seatpost and the backrest rod are folded closer to the side armrest tube.

As described above, in a stroller frame capable of quickly retracting a vehicle, a slide groove is provided along the inner side of the side armrest tube along the axial direction, and accordingly, a slide groove is provided along the inner side of the handlebar A sliding slider, the stroller frame further includes a baffle frame, two sides of the baffle frame are provided on the slider and slide up and down relative to the side armrest tube with it, and the handle push rod passes through the slider Slide in the chute and expand and contract the armrest tube on the opposite side up and down, and the awning frame telescopically moves the push rod up and down.

As described above, a fast-moving stroller frame has a hinge block between the middle of the seat post and the middle of the side armrest tube, and one end of the hinge block is hinged to the seat post The other end is provided with a notch for covering the side armrest tube to connect with it, and the notch can effectively prevent the seat post or the hinge block from interfering with the sliding of the handle bar along the side armrest tube.

As described above, a fast-moving stroller frame, the connecting member is V-shaped and two ends of the connecting member are hinged with V-shaped connecting sleeves for covering the four-bar mechanism, the V The connecting sleeve includes a separable upper sleeve and a lower sleeve. The upper part of the upper sleeve and the rear part of the lower sleeve are hinged with the upper end and the lower end of the connecting piece, respectively. Hidden without being exposed, at the same time, the hinge point between the four-bar mechanism (formed between the side armrest tube, the front foot bar, the rear foot bar and the connecting member) can be collected on the V-shaped connecting sleeve to make it more beautiful .

In a stroller frame capable of quickly retracting a vehicle as described above, the upper end of the front foot rod is hinged with the lower end of the side armrest tube through a hinge point A, and the upper end of the connecting member and the lower part of the side armrest tube It is hinged with the upper part of the upper sleeve through a hinge point B, the middle part of the front foot rod and the front end of the rear foot rod are hinged through a hinge point C, the lower end of the connecting member and the front part of the rear foot rod It is hinged with the rear part of the lower sleeve through a hinge point D, and the front part of the lower sleeve is hinged with the front foot rod through a hinge point E. When the vehicle is collected, the side armrest tube is separated from the front foot rod and connected at this time The lower sleeve of the sleeve is separated from the upper sleeve. The upper sleeve is fixed to the side armrest tube via a hinge point B. The front foot rod rotates relative to the lower sleeve via the hinge point E, and the rear foot rod and the connecting member are relative to the lower sleeve via the hinge point D. Turn.

[Description of the drawings]

The specific implementation of the present invention will be further described in detail below with reference to the drawings, in which:

Figure 1 is a side view of the present invention when deployed;

2 is a schematic structural view of the present invention when the handle push rod slides down to press the locking slider;

3 is a schematic structural view of the present invention when fully folded;

4 is a schematic diagram of the exploded structure between the side armrest tube, the front foot rod, the rear foot rod and the connecting member of the present invention;

5 is a schematic structural view of the hinge block of the present invention;

6 is a schematic structural view of a four-bar mechanism formed between the side armrest tube, the front foot bar, the rear foot bar, and the connecting member of the present invention;

7 is a schematic view of the structure of the handle push rod and the side armrest tube of the present invention;

FIG. 8 is a schematic diagram of a three-dimensional structure when the present invention is deployed and used.

【detailed description】

A stroller frame capable of quickly retracting a car includes a handle push rod 1, a side armrest tube 2, a front foot rod 5, and a rear foot rod 7, the handle push rod 1 is sleeved in the side armrest tube 2 and can be along its axial direction Sliding up and down; the front part of the front foot rod 5 is provided with a front wheel 50, the upper end of the front foot rod 5 is hinged with the lower end of the side armrest tube 2, and the front foot rod 5 is provided with a handle push rod 1 down the side armrest tube 2 When sliding, it presses to unlock the locking slider 6, the locking slider 6 can elastically expand and contract along the axial direction of the front foot rod 5 and can be snapped between the front foot rod 5 and the side armrest tube 2 so that the front foot rod 5 and the side The armrest tubes 2 are unfolded and locked with each other; the rear end of the rear foot rod 7 is provided with a rear wheel 70, the front end of the rear foot rod 6 is hinged with the middle of the front foot rod 5, and the front part of the rear foot rod 7 is hinged with the lower part of the side armrest tube 2 The connecting member 8 is such that a four-bar mechanism as shown in FIG. 6 is formed between the side armrest tube 2, the front foot rod 5, the rear foot rod 7, and the connecting member 8 so that when the side armrest tube 2 and the front foot rod 5 are deployed and locked, the rear foot The lever 7 is also deployed and locked.

The above stroller frame further includes a seat post 3, a backrest rod 4 and a awning frame 9, the middle part of the seat post 3 is hinged with the middle part of the side armrest tube 2, and the upper part of the backrest rod 4 is connected with the middle part of the handle push rod 1 Articulated, the rear part of the seat post 3 is hinged with the lower end of the backrest rod 4, as shown in FIG. 7, the inside of the side armrest tube 2 is provided with a sliding groove 21 along its axial direction, and accordingly, the inside of the handle push rod 1 is provided The slider 11 that can slide along the sliding groove 21 is provided with two sides of the tent frame 9 on the slider 11 and slides up and down along with the armrest tube 2 on the opposite side.

In order to prevent the seat post 3 from interfering with the sliding of the handle push rod 1 up and down along the side armrest tube 2, as shown in FIG. 5, a hinge block 10 is provided between the middle of the seat post 3 and the center of the side armrest tube 2, and one end of the hinge block 10 It is hinged with the seat post 3 and is provided with a notch 101 at the other end for covering the side armrest tube 2 and being connected thereto.

In order to improve the aesthetics, the connector 8 is V-shaped and the two ends of the connector 8 are hinged with a V-shaped connecting sleeve 81 for covering the four-bar mechanism. The V-shaped connecting sleeve 81 includes a detachable upper sleeve 811 With the lower sleeve 812, the upper portion of the upper sleeve 811 and the rear portion of the lower sleeve 812 are hinged with the upper end and the lower end of the connecting member 8, respectively.

As shown in FIG. 4, the upper end of the front foot rod 5 and the lower end of the side armrest tube 2 are hinged by a hinge point A, and the upper end of the connecting member 8, the lower portion of the side armrest tube 2 and the upper part of the upper sleeve 811 are hinged by a hinge point B , The middle part of the front foot rod 5 and the front end of the rear foot rod 7 are hinged by a hinge point C, the lower end of the connecting member 8, the front part of the rear foot rod 7 and the rear part of the lower sleeve 812 are hinged by a hinge point D, and the front of the lower sleeve 812 The part is hinged with the front foot rod 5 through a hinge point E.

The handle push rod 1 is provided with an unlocking device, and a corresponding locking device can be provided between the handle push rod 1 and the side armrest tube 2 for locking it, and the unlocking device and the locking device can adopt the unlocking in the prior art The device and the locking device, and the connection relationship between them is also consistent with the prior art, and will not be described here.

When the present invention is deployed and used, as shown in FIGS. 1 and 8, the locking slider 6 (the top of the locking slider 6 is provided with a pressing spring) is elastically snapped between the side armrest tube 2 and the front foot rod 5 to connect the side armrest tube 2 and the front foot rod 2 are unfolded and locked, because the four-bar mechanism shown in FIG. 6 is formed between the side armrest tube 2, the front foot rod 2, the rear foot rod 7, and the connecting member 8, and at this time, the rear foot rod 7 and the connecting member 8 are also It is locked, so that the stroller can be deployed stably and firmly. At this time, the handle push rod 1 is locked to the upper part of the side armrest tube 2 under the locking action of the locking device, so that the seat post 3, the backrest rod 4 and the awning The rack 9 can also be unfolded and locked for normal use. When the stroller frame is not in use and needs to be folded, operate the unlocking device to unlock the handle push rod 1, and then press the handle push rod 1 down to make it move along the side armrest tube 2 as shown in FIG. 2 Slide down to press the locking slider 6, and the backrest rod 4 moves down with it and presses the rear of the seatpost 3, so that the seatpost 3 rotates close to the side armrest tube 2, so that the seatpost 3 and The backrest rod 4 folds closer to the side armrest tube 2, and when the locking slider 6 is fully retracted into the front foot rod 5 and completely detached from the side armrest tube 2, the unlocking between the front foot rod 5 and the side armrest tube 2 is realized. If the handle push rod 1 is released, the handle push rod 1 will automatically rotate with the connecting member 8 with the hinge point D as the pivot point under the action of gravity, and then the foot rod 7 rotates and folds closer. At this time, under the joint action of the connecting member 8 , The rear foot rod 7 rushes forward together with the hinge point C and presses the front foot rod 5 down under the action of gravity and rotates towards the rear foot rod 7 to close and fold. At this time, the lower sleeve 812 of the connecting sleeve 81 is separated from the upper sleeve 811, and the upper sleeve 811 It is fixed to the side armrest tube 2 through the hinge point B, the front foot rod 5 rotates relative to the lower sleeve 812 through the hinge point E, and the rear foot rod 7 and the connecting member 8 rotate relative to the lower sleeve 812 through the hinge point D, and finally the stroller The frame is folded into the shape as shown in FIG. 3, and at this time, the rear wheel 70 and the handle push rod 1 can be used as a supporting point to vertically place the stroller frame after the vehicle is collected.

Claims

A stroller frame capable of quickly retracting a car is characterized by comprising:

Handle putter (1);

A side armrest tube (2), the handle push rod (1) is sleeved in the side armrest tube (2) and can slide up and down along its axial direction;

A front foot rod (5), the front part of the front foot rod (5) is provided with a front wheel (50), an upper end of the front foot rod (5) is hinged with a lower end of the side armrest tube (2), and the front foot A locking slider (6) is provided in the rod (5) for the handle push rod (1) to slide down along the side armrest tube (2) to press to unlock, the locking slider (6) ) Can be elastically stretched along the axial direction of the front foot rod (5) and can be snapped between the front foot rod (5) and the side armrest tube (2) so that the front foot rod (5) and the Side armrest tubes (2) expand and lock each other;

A rear foot rod (7), the rear end of the rear foot rod (7) is provided with a rear wheel (70), the front end of the rear foot rod (6) is hinged with the middle of the front foot rod (5), and the rear foot rod A connection piece (8) is hinged between the front part of (7) and the lower part of the side armrest tube (2) so that the side armrest tube (2), the front foot rod (5), the rear foot rod (7) and the connection A four-bar mechanism is formed between the pieces (8) so that when the side armrest tube (2) and the front foot bar (5) are deployed and locked, the rear foot bar (7) is also deployed and locked.
A stroller frame capable of quickly retracting a vehicle according to claim 1, further comprising a seat post (3) and a backrest rod (4), the middle of the seat post (3) and the side armrest The middle part of the tube (2) is hinged, the upper part of the backrest bar (4) is hinged with the middle part of the handle push rod (1), and the rear part of the seat rod (3) is connected with the backrest bar (4) The lower ends are hinged.
A stroller frame capable of quickly retracting a vehicle according to claim 2, wherein a slide groove (21) is provided along the axial direction of the inner side of the side armrest tube (2), and accordingly, the handle The inner side of the push rod (1) is provided with a slider (11) that can slide along the sliding groove (21). The stroller frame further includes a baffle frame (9), and two of the baffle frame (9) The side is provided on the slider (11) and slides up and down with respect to the side armrest tube (2).
A stroller frame capable of quickly retracting a vehicle according to claim 3, wherein a hinge block (10) is provided between the middle of the seat post (3) and the middle of the side armrest tube (2) One end of the hinge block (10) is hinged with the seat post (3) and the other end is provided with a notch (101) for covering the side armrest tube (2) to be connected thereto.
A stroller frame capable of quickly retracting a vehicle according to any one of claims 1 to 4, wherein the connecting member (8) is V-shaped and the two ends of the connecting member (8) are hinged with V Type connecting sleeve (81) for covering the four-bar mechanism, the V-shaped connecting sleeve (81) includes a separable upper sleeve (811) and a lower sleeve (812), the upper sleeve (811) The upper part and the rear part of the lower sleeve (812) are respectively hinged with the upper end and the lower end of the connecting member (8).
A stroller frame capable of quickly retracting a vehicle according to claim 5, characterized in that the upper end of the front foot rod (5) and the lower end of the side armrest tube (2) are hinged via a hinge point A, The upper end of the connecting member (8), the lower part of the side armrest tube (2) and the upper part of the upper sleeve (811) are hinged by a hinge point B, and the middle part of the front foot rod (5) is connected to the rear foot The front end of the rod (7) is hinged through a hinge point C, and the lower end of the connecting member (8), the front part of the rear foot rod (7) and the rear part of the lower sleeve (812) are hinged through a hinge point D The front part of the lower sleeve (812) is hinged with the front foot rod (5) through a hinge point E.