CN216128315U - Children's carriage frame - Google Patents

Abstract

The utility model relates to a child bicycle frame which has an unfolding state and a folding state. The child's bike rack includes: the front wheel frame, the rear wheel frame, the backrest frame, the armrest frame and the pushing handle frame; the top of preceding frame with back frame pin joint respectively in handrail frame, the tip pin joint of handrail frame in the middle part of pushing hand frame, the bottom pin joint of pushing hand frame in the middle part of back wheel carrier, the bottom pin joint of back frame in the bottom of pushing hand frame, wherein the children's frame still including connect in back frame with preceding wheel carrier or the linkage piece between the back wheel carrier, children's frame follow the expansion state to when closing the state switch, preceding wheel carrier or back wheel carrier is to being close to the direction of pushing hand frame is rotated, back frame passes through the pulling of linkage piece and switches to vertical state from the flat state of lying.

Description

Children's carriage frame

Technical Field

The present invention relates to a stroller for transporting a young child, and more particularly, to a stroller frame having a folding function.

Background

Various styles and configurations of strollers for transporting young children are currently available on the market. A stroller is generally composed of a frame and a seat cloth covering the frame. When not in use, the stroller can be folded for convenient storage or transport.

A child's frame may generally include a front foot and a rear foot pivotally connected to each other, a stroller frame pivotally connected to the front foot, and a backrest pivotally connected to the rear foot. However, the tilt angle of the backrest needs to be adjusted every time the stroller is folded, which is cumbersome to operate.

Therefore, a stroller frame with a folding function, which has a simple structure and can automatically fold the backrest, is urgently needed.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need for a child stroller frame with a simple structure and an automatically foldable backrest.

A child carrier having an expanded state and a collapsed state, comprising: the front wheel frame, the rear wheel frame, the backrest frame, the armrest frame and the pushing handle frame; the top of preceding frame with back frame pin joint respectively in handrail frame, the tip pin joint of handrail frame in the middle part of pushing hand frame, the bottom pin joint of pushing hand frame in the middle part of back wheel carrier, the bottom pin joint of back frame in the bottom of pushing hand frame, wherein the children's frame still including connect in back frame with preceding wheel carrier or the linkage piece between the back wheel carrier, children's frame follow the expansion state to when closing the state switch, preceding wheel carrier or back wheel carrier is to being close to the direction of pushing hand frame is rotated, back frame passes through the pulling of linkage piece and switches to vertical state from the flat state of lying.

When the baby carriage frame is folded, the backrest frame can automatically rotate upwards through the linkage piece to reduce the volume of the baby carriage, so that the folded size is more compact, the angle of the backrest frame does not need to be adjusted again, and the baby carriage frame is simple and convenient to use.

In one embodiment, the linkage is a flexible webbing.

In one embodiment, the lower end of the hand pushing frame and the rear wheel frame are connected through a bracket pivot.

In one embodiment, the backrest frame further comprises a seat and an angle adjusting mechanism arranged at the end part of the seat and used for adjusting the inclination angle of the backrest frame, and the push frame is pivoted with the seat.

In one embodiment, the backrest frame has two side tubes connected to the angle adjustment mechanism, and the linkage is fixed at one end to the side tubes and at the other end to the front wheel frame or the rear wheel frame.

In one embodiment, the angle adjusting mechanism includes a latch seat fixedly connected to the seat, and a latch member engaged with the latch seat and slidably connected to an end of the side tube.

In one embodiment, the inner surface of the engaging seat is provided with a plurality of step-shaped engaging grooves connected with each other, the angle adjusting mechanism further comprises an operating member, a sliding member and an elastic member, one end of the operating member is fixed to the sliding member, the sliding member is connected with the measuring tube in a sliding manner, the elastic member abuts against one end of the sliding member, and the engaging member is fixed to the sliding member and is engaged with or disengaged from the engaging grooves under the driving of the sliding member.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a perspective view of a child's frame according to one embodiment;

FIG. 2 is a side view of the stroller frame shown in FIG. 1;

FIG. 3 is a perspective view of the child carrier shown in FIG. 1 during folding;

FIG. 4 is a perspective view of the child carrier shown in FIG. 1 after folding is completed;

FIG. 5 is a side view of the child's frame shown in FIG. 4;

FIG. 6 is an enlarged partial perspective view taken at VI in FIG. 1;

fig. 7 is a perspective view of a child's frame according to another embodiment.

Detailed Description

As shown in fig. 1, in one embodiment, a child car frame 100 for a pushchair includes a seat 10 for seating an infant, a front wheel frame 20 located at a front side of the seat 10, a rear wheel frame 30 located at a rear side of the seat 10, an armrest frame 40 and a push frame 50, and a back frame 60 whose lower end is pivotally connected to a rear end of the seat 10.

The seat 10 includes two generally parallel seat posts 12 and two support posts 14 connecting the two seat posts 12. The seat bar 12 and the support bar 14 may be covered with a soft material such as a cushion or seat cloth for a baby to sit on. The middle of the seat bar 12 is pivotally connected to the middle of the front wheel frame 20 on the same side, and the rear end of the seat bar 12 is pivotally connected to the bottom end of the handle frame 50.

The top portions of the front wheel frame 20 and the rear wheel frame 30 are respectively pivoted to the handle frame 40. The front wheel frame 20 is provided at a lower end thereof with a front wheel 22 which is rotatable, and the rear wheel frame 30 is provided at a lower end thereof with a rear wheel 32 which is rotatable. A foot pedal 24 is also connected between the two front wheels 22 and a fixing lever 34 is also connected between the two rear wheels 32.

As shown in fig. 2, the handrail frame 40 includes right and left handrail rods 42 and a substantially U-shaped protection frame 44. The end of the grab bar 42 is pivoted with the pushing handle frame 50, and the front end of the grab bar 42 is provided with a rotating shaft 422 which is pivotally connected with the top of the front frame 20 and the rear frame 30. Both ends of the protective frame 44 are connected to the front ends of the two grab bars 42, respectively.

The hand rack 50 is substantially in the shape of an inverted U. The middle part of the handle frame 50 is pivoted with the end of the armrest frame 40, and the bottom part of the handle frame 50 is pivoted with the rear end of the seat rod 12. As shown in fig. 2, 3 and 4, the child carrier 100 further includes a bracket 52 pivotally connecting the lower end of the stroller frame 50 to the middle of the rear wheel frame 30. The upper end of the bracket 52 is rotatably connected to the lower end of the handle frame 50, and the lower end of the bracket 52 is rotatably connected to the rear wheel frame 30. When the stroller is folded, the connecting arm 144 may be rotated downward with respect to the handle frame 50 and the rear wheel frame 30, respectively, to further compress the distance between the handle frame 50 and the rear wheel frame 30.

Referring to fig. 1 and 6, the rear end of the seat 10 is further provided with an angle adjusting mechanism 70. The backrest frame 60 is movably connected to the seat 10 by an angle adjusting mechanism 70. The angle adjustment mechanism 70 can adjust the tilt angle of the backrest frame 60 relative to the seat 10 to be positioned in the upright position, the lying position, or any tilt position therebetween, providing more application scenarios for the user. As shown in fig. 3, the back frame 60 has an inverted U-shape and has two side tubes 62 connected to an angle adjusting mechanism 70. A back pad may be placed between the two side tubes 62 to support the back of the infant.

As shown in fig. 3, 4 and 6, the angle adjusting mechanism 70 includes an engaging seat 72 fixedly connected to the distal end of the seat 10, and an engaging piece 74 engaged with the engaging seat 72 and slidably connected to the end of the side tube 62. The inner surface of the engaging seat 72 is provided with a plurality of stepped engaging grooves 722 connected to each other. The larger the number of the engaging grooves 722, the larger the inclination angle at which the back frame 60 can be positioned. The angle adjustment mechanism 70 further includes an operation member 73, a sliding member 75, and an elastic member 76. The operating member 73 is shaped like the side tube 62 in a U-shape, and includes two links 732 parallel to the side tube 62 and an operating portion 734 connecting the two link ends 732. The sliding member 75 is slidably fitted over the end of the side tube 62. The engaging piece 74 is fixed to the slider 75 at its upper end by a pin, and at its lower end is engaged in one of the engaging grooves 722. The elastic member 76 is provided inside the side tube 62 and abuts against one end of the sliding member 75 so that the sliding member 75 tends to slide toward the lower end of the side tube 62. The end of the link 732 is fixed to the slider 75 to enable the operation portion 734 to operate the slider 75, that is, pulling the operation portion 734 upward can overcome the elastic force of the elastic member 76 to slide the slider 75 upward, so as to disengage the engaging member 74 from the engaging slot 722.

When the back frame 60 is in the lying position, the back frame 60 is substantially parallel to the seat 10, and the engaging member 74 is engaged with the uppermost engaging groove 722. When the inclination angle of the back frame 60 needs to be adjusted, the back frame 60 can be directly pushed to rotate upward, and the engaging piece 74 can slide down from the uppermost engaging groove 722 to the lower engaging groove 722 without resistance. When the backrest frame 60 reaches the predetermined position, the engaging member 74 abuts against a corresponding one of the engaging grooves 722 to restrict the backrest frame 60 from rotating downward, and the operation portion 734 does not need to be operated.

When the back frame 60 needs to be adjusted from the vertical position to the lying position, the operating portion 734 needs to be pulled upward to make the link 732 drive the sliding member 75 to slide upward, the elastic member 76 is compressed, and the engaging member 74 is disengaged from the engaging groove 722, and then the back frame 60 is rotated downward to a desired position, the operating portion 734 is released, and under the action of the elastic member 76, the engaging member 74 is engaged with one of the engaging grooves 722 again, so as to position the back frame 60.

Referring again to fig. 1-5, the child's frame 100 also includes a linkage 80 connected between the back frame 60 and the rear wheel frame 30. The linkage 80 is a flexible webbing that can be bent, and the material can be nylon, cloth, rubber band, or metal chain. When the stroller frame 100 is folded, the backrest frame 60 can be automatically rotated upward by the link 80 to reduce the volume of the stroller, so that the folded size is more compact, the angle adjusting mechanism 70 does not need to be operated again, and the use is simple and convenient. Specifically, one end of the link 80 passes through a positioning hole of the side tube 62 of the back frame 60 to be fixedly connected to the back frame 60, and the other end of the link 80 passes through a positioning hole of the upper portion of the rear wheel frame 30 to be fixedly connected to the rear wheel frame 30. During the folding process of the child vehicle frame 100 from the unfolded state to the folded state, the armrest frame 40 rotates upward relative to the push handle frame 50, the front wheel frame 20 and the rear wheel frame 30 rotate close to each other, and at the same time, the upper end of the rear wheel frame 30 approaches the push handle frame 50, so that the linkage 80 also pulls the back frame 60 to rotate upward. As described above, when the back frame 60 is adjusted from the lying position to the upright position, the engaging member 74 can easily move from the upper engaging groove 722 to the lower engaging groove 722 without any action on the operating portion 734, so that the back frame 60 can be easily rotated to the upright position to be close to the handle frame 50 by the driving of the linking member 80 regardless of whether the back frame 60 is in the lying position or the upright position when folded, thereby achieving the automatic folding of the back frame 60.

In this embodiment, the number of the link members 80 is two, and the link members are respectively connected to the left and right rear wheel frames 30 and the left and right side pipes 62 of the back frame 60, so that the back frame 60 can be pulled more easily and smoothly.

Referring to fig. 7, in another embodiment, one end of the link 80 passes through the positioning hole of the side tube 62 of the backrest frame 60 to be fixedly connected with the backrest frame 60, and the other end of the link 80 passes through the positioning hole of the upper portion of the front wheel frame 20 to be fixedly connected with the front wheel frame 20. When the child stroller frame 100 is folded, the armrest frame 40 rotates upward relative to the handle frame 50, the front wheel frame 20 pivotally connected to the armrest frame 40 also rotates in a direction approaching the handle frame 50, and the linkage member 80 connected to the front wheel frame 20 can pull the backrest frame 60 to rotate upward to approach the handle frame 50, thereby achieving automatic folding of the backrest frame 60.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (7)

1. A child's vehicle frame having an unfolded state and a folded state, comprising: the front wheel frame, the rear wheel frame, the backrest frame, the armrest frame and the pushing handle frame; the top of preceding frame with back frame pin joint respectively in handrail frame, the tip pin joint of handrail frame in the middle part of pushing hand frame, the bottom pin joint of pushing hand frame in the middle part of back wheel carrier, the bottom pin joint of back frame in the bottom of pushing hand frame, wherein the children's frame still including connect in back frame with preceding wheel carrier or the linkage piece between the back wheel carrier, children's frame follow the expansion state to when closing the state switch, preceding wheel carrier or back wheel carrier is to being close to the direction of pushing hand frame is rotated, back frame passes through the pulling of linkage piece and switches to vertical state from the flat state of lying.

2. The stroller frame of claim 1, wherein said linkage member is a flexible webbing.

3. The child carrier as claimed in claim 1 wherein the lower end of the hand truck and the rear wheel carrier are pivotally connected by a bracket.

4. The stroller frame of claim 1, further comprising a seat and an angle adjustment mechanism disposed at an end of the seat for adjusting the angle of inclination of the backrest frame, wherein the handle frame is pivotally connected to the seat.

5. A stroller frame according to claim 4, wherein the backrest frame has two side tubes connected to the angle adjusting mechanism, and the link member has one end fixed to the side tubes and the other end fixed to the front or rear wheel frame.

6. A child frame according to claim 5, wherein the angular adjustment mechanism includes a catch seat fixedly attached to the seat and a catch member cooperating with the catch seat and slidably attached to the end of the side tube.

7. The stroller frame according to claim 6, wherein the engaging seat has a plurality of engaging slots formed in an inner surface thereof and connected to each other in a step shape, the angle adjusting mechanism further comprises an operating member, a sliding member and an elastic member, one end of the operating member is fixed to the sliding member, the sliding member is slidably connected to the measuring tube, the elastic member abuts against one end of the sliding member, and the engaging member is fixed to the sliding member and is engaged with or disengaged from the engaging slot under the driving of the sliding member.

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