CN118701153B

CN118701153B - Stroller frame

Info

Publication number: CN118701153B
Application number: CN202410877097.8A
Authority: CN
Inventors: 林朝熙
Original assignee: Zhongshan Aifubao Daily Products Co ltd
Current assignee: Zhongshan Aifubao Daily Products Co ltd
Priority date: 2024-07-02
Filing date: 2024-07-02
Publication date: 2025-10-24
Anticipated expiration: 2044-07-02
Also published as: CN118701153A

Abstract

The invention discloses a baby carriage frame which comprises a front foot frame, a rear foot frame, a seat frame, a handle assembly, a control system, a sliding block, a linkage rod and a sliding block, wherein the upper end of the rear foot frame is hinged with the upper end of the front foot frame, the front part of the seat frame is hinged with the front foot frame, the lower end of the handle assembly is hinged with the upper end of the rear foot frame, the control system enables the frame to be unlocked, folded or unfolded and locked, the unlocking assembly comprises a locking assembly and an unlocking assembly arranged on the handle assembly, the sliding block is arranged on the rear foot frame and can be locked, fixed or unlocked and slid, the linkage rod is hinged with the handle assembly and the sliding block, the rear part of the seat frame is hinged with the linkage rod, and the sliding block can slide and drive the front foot frame, the seat frame and the handle assembly to be folded towards the rear foot frame after being unlocked. The folding of the front foot rest, the rear foot rest, the seat frame, the armrests and the handle bars is realized through a group of linkage systems, and the folding is convenient.

Description

Baby carriage frame

Technical Field

The invention relates to a frame of a baby carrier, and relates to the technical field of baby carriers.

Background

Baby carriages are the necessary products for most infants. Along with the continuous improvement of the requirements of the baby carrier, the baby carrier is stable, safe, light and small in size, and the baby carrier is more and more exquisite and more convenient to fold.

The existing folding baby carriages are various, and are folded by one-key linkage from two-hand folding to one-hand operation. The existing popular three-folded vehicle is still complex in structure, the folding of the vehicle body is a system, the seats are a system, the two groups of linkage systems realize the folding of the three-folded vehicle, and the folded vehicle is not neat and small in size and is not beneficial to storage.

Disclosure of Invention

The invention aims to provide a baby carriage frame which is simple in structure, small in size and neat after being folded, and can be operated by a single hand, front and rear feet and armrests are folded rapidly and simultaneously by one action, and the folding space is not occupied after the armrests are folded.

The invention is realized by the following technical scheme:

bassinet frame, its characterized in that includes:

a front foot frame, the lower end of which is provided with a front wheel;

The lower end of the rear foot frame is provided with a rear wheel, and the upper end of the rear foot frame is hinged with the upper end of the front foot frame;

A seat frame, wherein the front part is hinged with the front foot frame;

the lower end of the handle assembly is hinged with the upper end of the rear foot frame;

the control system enables the frame to be unlocked, folded or unfolded and locked and comprises a locking component and an unlocking component arranged on the handle component;

the sliding block is arranged on the rear foot frame and can be locked, fixed or unlocked to slide;

the linkage rod is hinged with the handle assembly and the sliding block, and the rear part of the seat frame is hinged with the linkage rod;

The sliding block can slide and drive the front foot frame, the seat frame and the handle assembly to be closed and folded towards the rear foot frame after unlocking.

The baby carrier frame is characterized by comprising a cross beam connected with rear wheels and rear foot pipes respectively arranged at two ends of the cross beam, wherein two connecting ports are arranged at the upper ends of the rear foot pipes, the front foot frame and the handle assembly are respectively hinged, and each rear foot pipe is provided with the sliding block.

The baby carrier frame is characterized in that the locking assembly comprises a lock seat arranged on the rear leg pipe, the lock seat is provided with a pull block capable of moving along the axial direction of the lock seat and a swingable lock catch, the sliding block is provided with a concave cavity matched with the lock catch, the pull block is connected with a pull rope of the unlocking assembly, and the lock catch can be driven to swing to lock or release the sliding block when the pull block moves.

The frame of the baby carrier is characterized in that the elastic piece which accelerates the slide block to move towards the rear wheel direction after the slide block is unlocked is arranged in the rear foot tube.

The frame of the baby carrier is characterized in that an axial chute is arranged in the middle of the rear foot pipe, and the sliding block slides along the chute.

The frame of the baby carrier is characterized in that the front foot frame comprises a pedal beam and front support legs at two ends of the pedal beam, the handle assembly comprises a handle and a handle rod, and after the front foot frame and the handle assembly are unfolded, the front support legs are parallel or in a straight line with the handle rod.

The frame of the baby carrier is characterized in that after the frame is unfolded, the rear foot tube is at right angles with the front support leg and the handle bar.

The frame of the baby carrier is characterized by further comprising an armrest, and the armrest is detachably arranged on the sliding block.

The baby carrier frame is characterized in that the rear foot tube is two parallel tubes, the upper end of the rear foot tube is provided with a connecting joint for fixing the two parallel tubes, the upper end of the connecting joint is provided with two articulated joints for respectively articulating the front foot frame and the rear foot frame, and the locking structure of the sliding block is arranged in the cavity of the lower end of the connecting joint.

The frame of the baby carrier is characterized in that the unlocking component comprises a rotary unlocking switch arranged on the handle of the handle component and a pull rope driven to be pulled by the rotary unlocking switch.

Compared with the prior art, the invention has the following advantages:

According to the invention, the front foot frame, the rear foot frame and the seat frame are simultaneously folded by the sliding of the unlocked slide block and the driving of the link rod, the frame linkage folding system is reduced, parts are reduced, the weight of the whole frame is reduced, the frame structure is simple and light, and the occupied space after folding is smaller.

The elastic piece which can accelerate sliding movement in the rear foot tube is matched with the control system, so that the one-key automatic folding of the whole vehicle frame is realized, the armrests are automatically folded at the tube shaft side of the rear foot tube along with the movement of the sliding blocks, and the folding of the front foot rest, the rear foot rest, the seat frame, the armrests and the handle bar is realized by a group of linkage systems, so that the folding is convenient.

Drawings

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

FIG. 2 is a partially exploded view of the present invention;

FIG. 3 is an exploded view of the rear foot frame and armrest of the present invention;

FIG. 4 is an enlarged view at A of FIG. 3;

FIG. 5 is an enlarged view at B of FIG. 3;

FIG. 6 is a schematic view of the portion of the connecting joint in which the shackle is extended;

Fig. 7 is a schematic structural view of the folded device of the present invention.

Detailed Description

The invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 6, a baby carrier frame comprises a front foot frame 1, a rear foot frame 2, a seat frame 3, a handle assembly 4, a control system, a sliding block 7, a linkage rod 8 and a sliding block 7, wherein the front wheel is arranged at the lower end of the front foot frame 1, the rear foot frame 2 is provided with the rear wheel at the lower end, the upper end of the rear foot frame 2 is hinged with the upper end of the front foot frame 1, the front part of the seat frame 3 is hinged with the front foot frame 1, the lower end of the handle assembly 4 is hinged with the upper end of the rear foot frame 2, the control system enables the frame to be unlocked and folded or unfolded and locked and comprises a locking assembly 5 and an unlocking assembly 6 arranged on the handle assembly 4, the sliding block 7 is arranged on the rear foot frame 2 and can be locked and fixed or unlocked and slid, the linkage rod 8 is hinged with the handle assembly 4 and the sliding block 7 respectively, the rear part of the seat frame 3 is hinged with the linkage rod 8, and the handle assembly 4 can be slid and driven to be folded towards the rear foot frame 2 after unlocking. The slide block 7 can slide along the axial direction of the pipe where the slide block is positioned in the rear caster direction after unlocking, and meanwhile, the linkage rod 8 is driven to draw close to the slide block 7 and slide downwards along with the slide block 7, so that the handle assembly 4 and the seat frame 3 are driven to draw close to the rear foot frame 2, and in the folding process of the seat frame 3, the front foot frame 1 rotates and folds along with the movement of the seat frame 3 by taking the upper end hinge point as the center. The whole folding movement is simple and the structure is simple.

The unlocking assembly 6 comprises an unlocking switch which can be operated by one hand and a pull rope 60 connected with the locking assembly 5, wherein the unlocking switch is generally arranged on the handle 41 of the handle assembly 4 and is convenient to operate, and one embodiment of the unlocking switch is shown in fig. 1-2, and the pull rope 60 is driven to be lifted and moved by rotating the unlocking switch 61. The handle bar 42 of the handle assembly 4 may be a single bar, or may be a retractable or foldable handle bar, and the unlocking assembly 6 may be capable of unlocking the slider 7 and the handle bar 42. Of course, a reset elastic member is preferably provided on the unlocked locking member to reset the unlocking movable locking member.

Further, the rear foot frame 2 comprises a cross beam 21 connected with rear wheels and rear foot tubes 22 respectively arranged at two ends of the cross beam 21, two connecting ports 23 are formed in the upper ends of the rear foot tubes 22, the front foot frame 1 and the handle assembly 4 are respectively hinged, sliding blocks 7 are arranged on each rear foot tube 22, and connecting pieces connected with the same side are driven to move and retract in the sliding process, so that symmetrical operation is realized, and the whole frame is smoother to retract.

The locking assembly 5 comprises a lock seat 51 arranged on the rear foot tube 22, the lock seat 51 is provided with a pull block 52 capable of moving along the axial direction of the lock seat and a swingable lock catch 53, the sliding block 7 is provided with a concave cavity 71 matched with the lock catch 53, the pull block 52 is connected with a pull rope 60 of the unlocking assembly 6, and the lock catch 53 can be driven to swing when the pull block 52 moves so as to lock or release the sliding block 7. As shown in fig. 4 and 5, one end of the lock catch 53 is hinged to the lock base 51, the lock catch 53 is provided with a chute 531, the chute 531 extends from the axial bottom to the axial end, the pull block 52 is provided with a pull rod 521 passing through the chute 531, when the pull block 52 moves up, the pull rod 521 moves up from the bottom of the chute 531, and the lock catch 53 swings to be separated from the cavity 71 of the slider 7, so that the slider 7 is unlocked, and the slider 7 can move down.

Preferably, in order to better realize automatic folding of the carriage, elastic members 70 are arranged in the rear leg 22 to accelerate the sliding block 7 to move towards the rear wheel after unlocking. Elastic members 70 are arranged in the rear foot tubes 22 on two sides, the elastic members 70 are preferably tension springs, one ends of the elastic members are connected with the bottom of the rear foot frame 2, the other ends of the elastic members are connected with the sliding blocks 7, and after the sliding blocks 7 are unlocked, the acting force of the tension springs can rapidly slide down to drive the linkage rod 8, the seat frame 3, the front foot frame 1 and the handle assembly 4 to be folded.

The rear leg 22 may be one, and has a cavity therein, and an elastic member 70 is disposed on one axial side, and a locking assembly 5 of the slider 7 is disposed on the other axial side, and an axial chute 221 is disposed in the middle for sliding the slider 7 therealong. Preferably, as shown in fig. 1-4 and 7, each side of the rear leg tube 22 is two parallel tubes, the two parallel tubes are connected to the end of the cross beam 21 side by side, a sliding groove 221 of the sliding block 7 is formed between the two rear leg tubes 22, a tension spring is arranged in one rear leg tube 22, the free end of the tension spring is connected with the sliding block 7, the rear leg tube 22 is provided with a slot for the tension spring to drive the sliding block 7 to move, a locking component 5 is arranged in the other rear leg tube 22, and a lock catch 53 can extend out of the rear leg tube 22 and extend into a concave cavity 71 of the sliding block 7.

In another embodiment of the present invention, when the rear foot tube 22 is two parallel tubes, the upper end is provided with a connecting joint 20 for fixing the two parallel tubes, the upper end of the connecting joint 20 is provided with two hinges for respectively hinging the front foot frame 1 and the rear foot frame 2, and the locking structure of the sliding block 7 is arranged in the cavity of the lower end of the connecting joint 20. The connecting joint 20 can ease the connecting angle between the front foot tube of the front foot frame 1 and the handle assembly 4, and can also make the frame parts easier to batch and assemble, and simultaneously facilitate maintenance of the sliding block 7 and the locking assembly 5. Preferably, the connecting joint 20 is sleeved on the lower ends of the two opening ends 23 of the rear foot tube 22, one side is long and the other side is short, the long locking assembly 5 can be installed, and the other side is convenient for installing the elastic piece 70 to be connected with the sliding block 7.

The front foot frame 1 includes a pedal beam 11 and front legs 12 at both ends of the pedal beam 11, and the handle assembly 4 includes a handle 41 and a handle bar 42, and the upper ends of the rear foot tubes 22 are respectively hinged to the lower ends of the handle bar 42 and the upper ends of the front legs 12. Preferably, the front foot frame 1 is parallel or in line with the handlebar stem 42 after deployment of the handlebar assembly 4. More preferably, after the frame is unfolded, the rear leg 22 forms a right angle with the front leg 12 and the handle bar 42, and the right angle rounded corner is more attractive and comfortable and smooth and is less prone to injury to the user. The folding frame is tidier and occupies less space, as shown in figure 7.

Further, the baby carriage frame further comprises the armrests 9 which are detachably arranged on the sliding blocks 7, when the sliding blocks 7 are unlocked and move downwards, the armrests 9 can be folded on the inner side or the outer side of the rear foot tube 22 along with the sliding blocks 7 in the axial direction without rotation or disassembly, and the folded space is not occupied.

Preferably, the slider 7 is provided with a handrail mounting seat 72 and a key 73 for fixing the handrail 9, so that the handrail 9 can be freely detached. The handrail 9 can be pulled out by pressing the key 73, and the handrail 9 can be locked by releasing the key 73 after the handrail 9 is assembled.

For the frame of the baby carrier, each unlocked part is preferably matched with a reset piece, so that the part (such as the pull block 52, the key 73, the lock catch 53 and the like) can be reset to the state before unlocking when the frame is unfolded, and the baby carrier can be conveniently and automatically folded after unlocking next time.

When the invention needs to be folded, the rotary unlocking switch 61 is operated to rotate so as to drive the pull rope 60 to move to unlock the locking assembly 5, the sliding block 7 is separated from the locking of the lock catch 53, the sliding block 7 moves towards the lower end of the rear foot pipe 22 under the action of the tension spring of the elastic piece 70, the linkage rod 8 hinged to the sliding block 7 moves downwards and rotates along with the sliding block, and accordingly, the seat frame 3 and the handle assembly 4 are driven to be folded towards the rear foot frame 2, and the front foot frame 1 is also driven to be folded towards the rear foot frame 2.

Claims

1. A baby carriage frame, comprising:

A front bicycle frame (1) having a front wheel at its lower end;

A rear foot frame (2) is provided with a rear wheel at its lower end, and the upper end of the rear foot frame (2) is hinged to the upper end of the front foot frame (1);

A seat frame (3), the front portion of which is hinged to the front leg frame (1);

A handlebar assembly (4), the lower end of which is hinged to the upper end of the rear foot frame (2);

A control system, which enables the frame to be unlocked, folded, or unfolded and locked, comprising a locking assembly (5) and an unlocking assembly (6) provided on the handle assembly (4);

A slider (7) is provided on the rear leg frame (2), and the slider (7) can be locked and fixed or unlocked and slid;

A linkage rod (8) is hinged to the handle assembly (4) and the slider (7), and the rear portion of the seat frame (3) is hinged to the linkage rod (8);

An armrest (9) detachably mounted on the slider (7);

The rear foot frame (2) comprises a crossbeam (21) connected to the rear wheel and rear foot tubes (22) respectively provided at both ends of the crossbeam (21); the upper ends of the rear foot tubes (22) are provided with two connection ports (23) which are respectively hinged to the front foot frame (1) and the handlebar assembly (4); each rear foot tube (22) is provided with the slider (7);

The locking assembly (5) includes a lock seat (51) provided on the rear leg tube (22), the lock seat (51) is provided with a pull block (52) movable along its axial direction and a swingable lock buckle (53), the slider (7) is provided with a concave cavity (71) cooperating with the lock buckle (53), the pull block (52) is connected to the pull rope (60) of the unlocking assembly (6), and when the pull block (52) moves, it can drive the lock buckle (53) to swing, thereby locking or releasing the slider (7);

After being unlocked, the slider (7) can slide and drive the front leg frame (1), the seat frame (3) and the handlebar assembly (4) to move closer to and fold towards the rear leg frame (2), and the armrest (9) can be folded along with the slider (7) to the axial inner side or outer side of the rear leg tube without being rotated or disassembled.

2. The baby carriage frame according to claim 1, characterized in that an elastic member (70) is provided in the rear leg tube (22) for accelerating the movement of the slider (7) toward the rear wheel when the slider (7) is unlocked.

3. The baby carriage frame according to claim 1 or 2, characterized in that an axial sliding groove (221) is provided in the middle of the rear leg tube (22), and the slider (7) slides along the sliding groove (221).

4. The baby carriage frame according to claim 1, characterized in that the front foot frame (1) includes a pedal beam (11) and front support legs (12) at both ends thereof, and the handlebar assembly (4) includes a handle (41) and a handlebar rod (42), and after the front foot frame (1) and the handlebar assembly (4) are unfolded, the front support legs (12) and the handlebar rod (42) are parallel to or in a straight line.

5. The baby carriage frame according to claim 4, characterized in that after the frame is unfolded, the rear leg tube (22) forms a right angle with the front support leg (12) and the handlebar (42).

6. The baby carriage frame according to claim 1, characterized in that the rear leg tube (22) is two parallel tubes, and a connecting joint (20) is provided at the upper end thereof to fix the two parallel tubes, and two hinge joints are provided at the upper end of the connecting joint (20), which are respectively hinged to the front leg frame (1) and the rear leg frame (2), and the locking structure of the slider (7) is provided in the lower end cavity of the connecting joint (20).

7. The baby carriage frame according to claim 1, characterized in that the unlocking assembly (6) comprises a rotation unlocking switch (61) provided on the handle of the handle assembly (4) and a pull rope (60) driven by the rotation unlocking switch (61) to be pulled.