CN106741093B

CN106741093B - Foldable baby stroller

Info

Publication number: CN106741093B
Application number: CN201610307680.0A
Authority: CN
Inventors: 李伟琼
Original assignee: Kunshan Weikai Children Products Co Ltd
Current assignee: Kunshan Weikai Children Products Co Ltd
Priority date: 2016-05-11
Filing date: 2016-05-11
Publication date: 2020-04-14
Anticipated expiration: 2036-05-11
Also published as: CN106741093A

Abstract

The invention belongs to the field of baby strollers, and discloses a foldable baby stroller which comprises a push rod assembly, a front support assembly and a rear support assembly, wherein the lower end of the front support assembly is connected with a front wheel assembly, the rear support assembly is connected with a rear wheel assembly, the push rod assembly, the front support assembly and the rear support assembly are coaxially connected in a pin joint mode, the foldable baby stroller also comprises a seat rod assembly, a support rod assembly and a connecting rod, the seat rod assembly is rotatably connected to the push rod assembly, two ends of the support rod assembly are respectively and rotatably connected with the front support assembly and the seat rod assembly, and two ends of the connecting rod are respectively and rotatably connected with the rear support. The seat rod assembly is rotatably connected with the push rod assembly, two ends of the supporting rod assembly are respectively rotatably connected with the front support assembly and the seat rod assembly, and two ends of the connecting rod are respectively rotatably connected with the rear support assembly and the supporting rod assembly, so that the folding baby stroller is more labor-saving, the folded size is smaller, the structure of the baby stroller is simple, and the structural strength is improved.

Description

Foldable baby stroller

Technical Field

The invention relates to the technical field of baby strollers, in particular to a foldable baby stroller.

Background

The baby stroller is a necessary tool for the traveling of infants, and is already used by the majority of users. At present, users pay more and more attention to the characteristics of small volume, light weight, folding and the like of the baby stroller besides the basic requirements of pursuing the stability and the safety of the baby stroller.

The folding joint of the existing baby stroller generally comprises a front support assembly, a rear support assembly and a push rod assembly, and the folding of the whole stroller is realized by the folding of the three assemblies and the linkage of the other assemblies. But current baby's shallow is structurally comparatively complicated and structural strength not high, and current baby's shallow volume is great relatively after folding moreover, can not be applicable to user's the space of placing, and inconvenient placing is accomodate.

Disclosure of Invention

The invention aims to provide a foldable baby stroller to solve the problem that the existing baby stroller is large in size after being folded and cannot be suitable for a user placing space.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a collapsible baby's shallow, contains push rod subassembly, front support assembly, back support assembly, front support assembly lower extreme is connected with the front wheel subassembly, back support assembly is connected with the back wheel subassembly, push rod subassembly, front support assembly, the coaxial pin joint of back support assembly three still contain seat pole subassembly, bracing piece subassembly and connecting rod, seat pole subassembly rotates to be connected on push rod subassembly, the both ends of bracing piece subassembly rotate with front support assembly and seat pole subassembly respectively to be connected, the both ends of connecting rod rotate with back support assembly and bracing piece subassembly respectively to be connected.

Preferably, a locking mechanism is arranged between the push rod assembly and the stay bar assembly.

Preferably, the push rod assembly comprises a push rod mechanism and a push handle mechanism, and the push rod mechanism is rotatably connected with the push handle mechanism.

Preferably, the locking mechanism comprises a lock catch fixedly arranged on the strut assembly, a sliding sleeve is arranged on the push rod mechanism and is provided with a lock hook buckled with the lock catch, a fixing sleeve is arranged on a fixing seat of the push rod mechanism, one end of the lock hook is arranged in the fixing seat, a spring which is sleeved on the push rod mechanism and is positioned between the lock hook and the fixing seat is arranged in the fixing seat, the lock hook is connected with a traction cable positioned in the push rod mechanism, and one end of the traction cable, which is not connected with the lock hook, is connected with an unlocking mechanism positioned at the connecting position of the push rod mechanism and the push.

Preferably, the unlocking mechanism comprises an arc-shaped piece connected to one end, not connected with the lock hook, of the traction cable, a sliding groove is formed in the push rod mechanism, the arc-shaped piece is arranged in the sliding groove in a sliding mode, a boss is arranged on the push handle mechanism, and the boss is arranged in the sliding groove and clamped at one end, connected with the traction cable, of the arc-shaped piece.

Preferably, the vaulting pole subassembly includes the vaulting pole seat, and the vaulting pole at vaulting pole seat both ends is worn to establish by the symmetry, the both ends of vaulting pole all are equipped with the vaulting pole cover, and the vaulting pole is located the rotatable cover of vaulting pole cover of upper end and establishes on the seat pole subassembly, and the rotatable cover of vaulting pole cover that is located the lower extreme is established on preceding bracket component, the connecting rod rotates to be connected in the vaulting pole seat, and the hasp sets firmly on the vaulting pole seat.

Preferably, the stay bar seat is hollow, the lock catch is of a stand column structure and is fixedly arranged at the hollow position inside the stay bar seat, and when the locking mechanism locks the push rod assembly and the stay bar assembly, the lock hook is hooked on the lock catch.

Preferably, a cross rod is arranged on the front support assembly, and a support rod sleeve at the lower end of the support rod is rotatably sleeved on the cross rod.

Preferably, the push rod mechanism is of a U-shaped structure and comprises connecting rods located on two sides and a horizontal rod fixedly connected to the lower end of each connecting rod, and the lock hook is slidably sleeved on the horizontal rod.

Preferably, a first locking mechanism is arranged between the push rod mechanism and the push handle mechanism.

The invention has the beneficial effects that: the seat rod assembly is rotatably connected with the push rod assembly, two ends of the supporting rod assembly are respectively rotatably connected with the front support assembly and the seat rod assembly, and two ends of the connecting rod are respectively rotatably connected with the rear support assembly and the supporting rod assembly, so that the folding baby stroller is more labor-saving, has smaller volume after being folded, is suitable for a placing space of a user, and is convenient for the user to place and store; and the structure of the baby stroller is simple and the structural strength is improved.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is an exploded view of the present invention showing the shackle;

FIG. 4 is a schematic view of the present invention showing an exploded structure with a latch;

FIG. 5 is an enlarged schematic view at I of FIG. 4 of the present invention;

FIGS. 6-7 are schematic structural views of the locking mechanism of the present invention;

FIGS. 8-9 are schematic views of the structure of the folding process of the present invention;

fig. 10 is a schematic view of the folded structure of the present invention.

In the figure:

1. a push rod assembly; 2. a front carrier assembly; 3. a rear bracket assembly; 4. a front wheel assembly; 5. a rear wheel assembly; 6. a seat post assembly; 7. a strut assembly; 8. a connecting rod; 9. a locking mechanism; 10. an arc-shaped sheet; 1-1, a push rod mechanism; 1-1a, a chute; 1-1b, a connecting rod; 1-1c, horizontal rods; 1-2, a handle pushing mechanism; 1-2a, a boss; 2-1, a cross bar; 7-1, a strut seat; 7-2, a support rod; 7-3, a support rod sleeve; 9-1, locking; 9-2, a latch hook; 9-3, fixing seats; 9-4, a spring; 9-5, and a traction rope.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

The present invention provides a foldable stroller, as shown in fig. 1, 2 and 6, comprising a push rod assembly 1, a front support assembly 2, a rear support assembly 3, a front wheel assembly 4, a rear wheel assembly 5, a seat rod assembly 6, a stay rod assembly 7, a connecting rod 8, a locking mechanism 9 and an unlocking mechanism, wherein:

referring to fig. 1, the front wheel assembly 4 is connected to the lower end of the front support assembly 2, the rear wheel assembly 5 is connected to the rear support assembly 3, the push rod assembly 1, the front support assembly 2 and the rear support assembly 3 are coaxially connected by pins, the seat rod assembly 6 is rotatably connected to the push rod assembly 1, two ends of the support rod assembly 7 are rotatably connected to the front support assembly 2 and the seat rod assembly 6 respectively, and two ends of the connecting rod 8 are rotatably connected to the rear support assembly 3 and the support rod assembly 7 respectively. Through the rotating connection among the components, the baby stroller is more convenient to fold, and the user experience of a user is improved.

In this embodiment, the push rod assembly 1 includes a push rod mechanism 1-1 and a push handle mechanism 1-2, the push rod mechanism 1-1 is rotatably connected to the push handle mechanism 1-2, and a first locking mechanism (not shown) is disposed between the push rod mechanism 1-1 and the push handle mechanism 1-2 for locking the push rod mechanism 1-1 and the push handle mechanism 1-2.

Preferably, as shown in fig. 3, the push rod mechanism 1-1 is a U-shaped structure, and includes a connecting rod 1-1b located at two sides, and a horizontal rod 1-1c fixedly connected to the lower end of the connecting rod 1-1b, wherein one end of the locking mechanism 9 is slidably sleeved on the horizontal rod 1-1 c.

The front support component 2 is provided with a cross rod 2-1, and one end of the support rod component 7 is rotatably sleeved on the cross rod 2-1.

The seat post component 6 is a rectangular frame structure, the cross section of the seat post component is circular, and the other end of the stay bar component 7 is rotatably sleeved on the seat post component 6. Thereby realizing the rotary connection between the support rod component 7 and the front bracket component 2 and the seat rod component 6.

In this embodiment, as shown in fig. 5, the stay rod assembly 7 includes a stay rod seat 7-1, and stay rods 7-2 symmetrically inserted into two ends of the stay rod seat 7-1, two ends of the stay rods 7-2 are respectively provided with a stay rod sleeve 7-3, the stay rod sleeve 7-3 at the upper end of the stay rod 7-2 is rotatably sleeved on the seat rod assembly 6, the stay rod sleeve 7-3 at the lower end is rotatably sleeved on the cross rod 2-1 of the front support assembly 2, and one end of the connecting rod 8 is rotatably connected to the stay rod seat 7-1.

A locking mechanism 9 is arranged between the push rod assembly 1 and the stay rod assembly 7 and is used for locking the whole baby stroller, in particular, referring to fig. 3-7, the locking mechanism 9 comprises a lock catch 9-1 fixedly arranged on the stay rod seat 7-1, a lock hook 9-2 which is slidably sleeved on the horizontal rod 1-1c of the push rod mechanism 1-1 and is buckled with the lock catch 9-1, and a fixed seat 9-3 fixedly sleeved on the horizontal rod 1-1c, one end of the lock hook 9-2 is arranged in the fixed seat 9-3, a spring 9-4 which is sleeved on the horizontal rod 1-1c and is positioned between the lock hook 9-2 and the fixed seat 9-3 is arranged in the fixed seat 9-3, the lock hook 9-2 is connected with a traction cable 9-5 positioned in the push rod mechanism 1-1, one end of the traction cable 9-5, which is not connected with the locking hook 9-2, is connected with an unlocking mechanism which is positioned at the connecting position of the push rod mechanism 1-1 and the push handle mechanism 1-2.

The unlocking mechanism comprises an arc-shaped sheet 10 connected to one end of the traction cable 9-5, which is not connected with the lock hook 9-2, a sliding groove 1-1a is arranged in the push rod mechanism 1-1, the arc-shaped sheet 10 is arranged in the sliding groove 1-1a in a sliding mode, a boss 1-2a is arranged on the push handle mechanism 1-2, and the boss 1-2a is arranged in the sliding groove 1-1a and is clamped at one end, connected with the traction cable 9-5, of the arc-shaped sheet 10.

In this embodiment, as shown in fig. 3 and 4, the strut seat 7-3 is hollow, the lock catch 9-1 is a column structure and is fixed at the hollow position inside the strut seat 7-3, and when the locking mechanism 9 locks the push rod assembly 1 and the strut assembly 7, the lock hook 9-2 is hooked on the lock catch 9-1.

In this embodiment, the rotational connection between the above components is implemented by a pin joint, but the rotational connection is not limited to the pin joint, and other structures capable of implementing rotational connection are also applicable to the present invention.

The folding process of the foldable stroller of the present invention is explained as follows:

in the embodiment, when the baby stroller is folded, the first locking mechanism between the push rod mechanism 1-1 and the push handle mechanism 1-2 is firstly released, then the push handle mechanism 1-2 is turned backwards, the boss 1-2a on the push handle mechanism 1-2 can drive the arc-shaped piece 10 to rotate in the chute 1-1a, the traction cable 9-5 is pulled, the traction cable 9-5 drives the lock hook 9-2 to slide along the horizontal rod 1-1c and separate from the lock catch 9-1, the locking between the push rod assembly 1 and the stay rod assembly 7 is released, at the moment, the spring 9-4 is compressed by the lock hook 9-2 due to the movement of the lock hook 9-2 and is in a compressed state, then the push rod mechanism 1-1 of the push rod assembly 1 is turned forwards, at the moment, due to the lock hook 9-2 separating from the lock catch 9-1, through the rotating connection among the components of the whole baby stroller, the push rod mechanism 1-1, the push handle mechanism 1-2, the front support assembly 2, the rear support assembly 3, the seat rod assembly 6, the support rod assembly 7 and the connecting rod 8 are folded together, and the specific folding process can be referred to in figures 8-10.

When the baby stroller needs to be used (namely, the baby stroller is unfolded), the push rod assembly 1 is lifted firstly to unfold the baby stroller, then the push handle mechanism 1-2 is unfolded, at the moment, the traction cable 9-5 is restored to the original position under the elastic force of the spring 9-4, in the process, the lock hook 9-2 is hooked on the lock catch 9-1 under the elastic force of the spring 9-4, the whole baby stroller is locked, and the unfolding process of the baby stroller is completed.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A foldable baby stroller comprises a push rod assembly (1), a front support assembly (2) and a rear support assembly (3), wherein the lower end of the front support assembly (2) is connected with a front wheel assembly (4), the rear support assembly (3) is connected with a rear wheel assembly (5), and the push rod assembly (1), the front support assembly (2) and the rear support assembly (3) are coaxially in pin joint, and the foldable baby stroller is characterized by further comprising a seat rod assembly (6), a support rod assembly (7) and a connecting rod (8), wherein the seat rod assembly (6) is rotatably connected to the push rod assembly (1), two ends of the support rod assembly (7) are respectively rotatably connected with the front support assembly (2) and the seat rod assembly (6), and two ends of the connecting rod (8) are respectively rotatably connected with the rear support assembly (3) and the support rod assembly (7);

a locking mechanism (9) is arranged between the push rod assembly (1) and the support rod assembly (7);

the push rod assembly (1) comprises a push rod mechanism (1-1) and a push handle mechanism (1-2), and the push rod mechanism (1-1) is rotatably connected with the push handle mechanism (1-2);

the locking mechanism (9) comprises a lock catch (9-1) fixedly arranged on the strut assembly (7), a lock hook (9-2) which is sleeved on the push rod mechanism (1-1) in a sliding manner and is buckled with the lock catch (9-1), and a fixing seat (9-3) fixedly sleeved on the push rod mechanism (1-1), one end of the lock hook (9-2) is arranged in the fixing seat (9-3), a spring (9-4) which is sleeved on the push rod mechanism (1-1) and is positioned between the lock hook (9-2) and the fixing seat (9-3) is arranged in the fixing seat (9-3), the lock hook (9-2) is connected with a traction cable (9-5) positioned in the push rod mechanism (1-1), and one end, which is not connected with the lock hook (9-2), of the traction cable (9-5) is connected with the push rod mechanism (1-1) and the handle pushing machine An unlocking mechanism at the connecting position of the mechanism (1-2).

2. The foldable stroller of claim 1, wherein the unlocking mechanism comprises an arc-shaped piece (10) connected to one end of the traction cable (9-5) not connected with the latch hook (9-2), the push rod mechanism (1-1) is provided with a sliding slot (1-1a), the arc-shaped piece (10) is slidably arranged in the sliding slot (1-1a), the push handle mechanism (1-2) is provided with a boss (1-2a), and the boss (1-2a) is arranged in the sliding slot (1-1a) and is clamped at one end of the arc-shaped piece (10) connected with the traction cable (9-2).

3. The foldable stroller according to claim 2, wherein the stay rod assembly (7) comprises a stay rod seat (7-1), and stay rods (7-2) symmetrically arranged at two ends of the stay rod seat (7-1), wherein stay rod sleeves (7-3) are arranged at two ends of each stay rod (7-2), the stay rod sleeve (7-3) at the upper end of each stay rod (7-2) is rotatably sleeved on the stay rod seat (6), the stay rod sleeve (7-3) at the lower end is rotatably sleeved on the front support assembly (2), the connecting rod (8) is rotatably connected to the stay rod seat (7-1), and the lock catch (9-1) is fixedly arranged on the stay rod seat (7-1).

4. The foldable stroller of claim 3, wherein the strut seat (7-1) is hollow inside, the latch (9-1) is a column structure and is fixed at the hollow inside of the strut seat (7-1), and when the locking mechanism (9) locks the push rod assembly (1) and the strut assembly (7), the latch hook (9-2) is hooked on the latch (9-1).

5. The foldable stroller of claim 4, wherein the front frame assembly (2) is provided with a cross bar (2-1), and a brace sleeve (7-3) at the lower end of the brace (7-2) is rotatably sleeved on the cross bar (2-1).

6. The foldable stroller of claim 5, wherein the push rod mechanism (1-1) is a U-shaped structure, and comprises a connecting rod (1-1b) at two sides and a horizontal rod (1-1c) fixed to the lower end of the connecting rod (1-1b), and the latch hook (9-2) is slidably sleeved on the horizontal rod (1-1 c).

7. The collapsible pushchair according to claim 1, wherein a first locking mechanism is provided between the push bar mechanism (1-1) and the push handle mechanism (1-2).