CN211893370U

CN211893370U - Baby stroller folding frame

Info

Publication number: CN211893370U
Application number: CN201922262264.5U
Authority: CN
Inventors: 刘建华; 樊彦文
Original assignee: Ningbo Mybaby Baby Products Manufacturing Co Ltd
Current assignee: Ningbo Mybaby Baby Products Manufacturing Co Ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-11-10
Anticipated expiration: 2029-12-17

Abstract

The utility model discloses a baby stroller folding frame, which comprises a front leg tube, a rear leg tube, handle straight tubes, a handle bent tube, mounting pieces and the like, and further comprises a front support tube, a rear support tube and a seat platform, wherein the front support tube, the rear support tube and the seat platform are horizontally arranged in the frame, the front support tube, the rear support tube and the seat platform are mutually rotatably connected between the front support tube and the rear support tube, the lower ends of the two handle straight tubes are respectively and synchronously lifted and slidably mounted in the two mounting pieces, the two ends of the front support tube are respectively and axially slidably mounted at the lower ends of the two handle straight tubes, the two ends of the rear support tube are respectively hinged on two support legs of the U-shaped rear; the mounting piece is also provided with a first locking piece and a second locking piece, the first locking piece locks or unlocks the sliding of the lower end of the handle straight tube, and the second locking piece locks or unlocks the sliding of the end part of the front supporting tube; therefore, the frame can be unfolded or folded better through the structural improvement, and the folding bicycle has the use advantages of simple design, easy operation, small volume after folding and the like.

Description

Baby stroller folding frame

Technical Field

The utility model relates to a shallow folding chassis specifically indicates a baby's shallow folding chassis.

Background

At present, the unfolding use state and the folding storage state of the baby stroller are mainly realized by a folding frame forming a framework of the baby stroller, the structure of the baby stroller is mostly formed by a U-shaped front foot tube, a U-shaped rear foot tube, two handle straight tubes, two handle bent tubes and the like, the U-shaped two ends of the front foot tube are respectively provided with a fixedly-installed part, the U-shaped two ends of the rear foot tube and the lower ends of the two handle bent tubes are respectively and rotatably hinged on the two installed parts, so that the whole stroller frame forms an inverted Y shape after being unfolded, then a seat which is independently detachable is installed between the two installed parts, the installed parts are connecting parts for mutually rotating or mutually folding the front foot tube and the rear foot tube, the height of the installing parts is usually limited by a certain structure, and the seat is also too low to influence the sight line of the baby when the baby stroller sits, is closer to the ground and is farther; meanwhile, when the inverted Y-shaped frame consisting of the front foot tube, the rear foot tube and the handle bent tube is unfolded or folded, the inverted Y-shaped frame is realized by rotating around the mounting piece, and in order to ensure the stability and the reliability of the unfolded state or the folded state, more connecting rods are required to be designed among the three parts, so that the structure is more complicated, the operation is more difficult, the size of the folded frame is larger, particularly the length direction is longer, the weight is heavier, and the portability is influenced.

Disclosure of Invention

The utility model aims to solve the technical problem that the defect of the prior art is overcome and a baby stroller folding frame which has simple structure, easy operation, small volume after folding and higher position of the seat after unfolding is provided.

The technical problem of the utility model is realized through following technical scheme:

a folding frame of a baby stroller comprises a U-shaped front foot tube, a U-shaped rear foot tube, two handle straight tubes and an inverted U-shaped handle bent tube; the U-shaped two ends of the front foot tube are respectively provided with a fixedly installed installation part, and the U-shaped two ends of the rear foot tube are respectively and rotatably hinged on the two installation parts; a rotary joint is arranged between the two inverted U-shaped ends of the handle bent pipe and the upper ends of the two handle straight pipes respectively, a front supporting pipe and a rear supporting pipe which are transversely arranged are also arranged in the frame, and a seat platform which is mutually and rotatably connected is arranged between the front supporting pipe and the rear supporting pipe; the lower ends of the two handle straight pipes are respectively and synchronously installed in the two installation parts in a lifting and sliding manner; the two ends of the front supporting tube are respectively and slidably arranged at the lower ends of the two handle straight tubes along the axial direction, the two ends of the rear supporting tube are respectively hinged on the two supporting legs of the U-shaped rear foot tube, and a connecting rod which is mutually hinged is arranged between the lower end of each handle straight tube and the supporting leg at the same side of the rear foot tube; the installation part on be equipped with first latch fitting and second latch fitting, the slip of this first latch fitting locking or unblock hand (hold) straight tube lower extreme, the slip of support tube tip before this second latch fitting locking or unblock.

The frame is unfolded, the lower end of the handle straight pipe slides up in the mounting piece and is locked by the first locking piece, meanwhile, the end part of the front supporting pipe slides downwards along the axial direction of the handle straight pipe and is locked by the second locking piece, the front foot pipe, the rear foot pipe and the handle straight pipe form a stable inverted Y shape, the handle straight pipe, the rear foot pipe and the connecting rod form a stable triangle, and the front supporting pipe and the rear supporting pipe support and lift up the seat platform together; the frame fold, this first latch fitting unblock makes hand (hold) straight tube lower extreme slide in the installed part and descend, and then drives and rotates the joint and near the installed part, the second latch fitting unblock makes preceding stay tube tip upwards slide along the axial of hand (hold) straight tube simultaneously, this preceding stay tube, seat platform, back stay tube and connecting rod linkage are folded and are closed together, preceding foot pipe, hand (hold) straight tube and back foot pipe also fold and close together.

The handlebar straight tube lower extreme be equipped with along the axially extended spout, preceding stay tube tip be equipped with the slide-shaft of slip fit in this spout, the frame expand, this slide-shaft gliding is to the lowest of spout, and preceding stay tube is locked by the second latch fitting, the frame fold, this slide-shaft gliding is to the highest of spout.

The frame is folded, and the front supporting tube, the seat platform, the rear supporting tube and the connecting rod are linked, folded and gathered in the rear foot tube.

The frame is folded, and the rear foot tube is folded and gathered between the two handle straight tubes.

The mounting piece is provided with a lifting hole, and the lower end of the handle straight pipe is arranged in the lifting hole in a lifting sliding mode and extends out of the bottom of the lifting hole to be exposed.

The front end of the connecting rod is hinged to the inner side face of the lower end of the handle straight tube, and the rear end of the connecting rod is hinged to the outer side face of the rear foot tube.

The U-shaped end part of the front foot tube is fixedly arranged at the front part of the mounting part, and the U-shaped end part of the rear foot tube is hinged at the rear part of the mounting part.

The handle elbow is provided with an operating button and a secondary lock, and the operating button controls the rotating joint to realize locking or unlocking of gear rotation in a rotating stroke; the operating button presses and is matched with the two locks to completely unlock the rotating joint, and the handle bent pipe is folded and gathered relative to the handle straight pipe so as to synchronously unlock the first locking piece and the second locking piece.

Compared with the prior art, the utility model mainly comprises a front supporting tube and a rear supporting tube which are transversely arranged in the frame, a seat platform which is mutually rotatably connected is arranged between the front supporting tube and the rear supporting tube, two ends of the front supporting tube are respectively arranged at the lower ends of two handle straight tubes in an axial sliding way, and two ends of the rear supporting tube are respectively hinged on two supporting legs of a U-shaped rear foot tube; meanwhile, the lower ends of the two handle straight pipes are respectively installed in the two installation parts in a synchronous lifting sliding manner, the installation parts are also provided with a first locking part and a second locking part, the first locking part locks or unlocks the sliding of the lower ends of the handle straight pipes, the second locking part locks or unlocks the sliding of the end parts of the front supporting pipes, and mutually hinged connecting rods are arranged between the lower ends of each handle straight pipe and the supporting legs at the same side of the rear leg pipe; therefore, when the frame is unfolded, the lower end of the handle straight pipe slides up in the mounting part and is locked by the first locking part, meanwhile, the end part of the front supporting pipe slides downwards along the axial direction of the handle straight pipe and is locked by the second locking part, so that the front foot pipe, the rear foot pipe and the handle straight pipe can form a stable inverted Y shape, the handle straight pipe, the rear foot pipe and the connecting rod can also form a stable triangle, and the front supporting pipe and the rear supporting pipe can jointly support and lift up the seat platform, namely, the seat is arranged on the seat platform and can have higher use height; when the frame is folding, slide in the installed part through first latch fitting unblock and messenger hand (hold) straight tube lower extreme and descend, and then drive and rotate the joint and near the installed part, the second latch fitting is also unblock simultaneously and makes preceding stay tube tip upwards slide along the axial of hand (hold) straight tube, this preceding stay tube, the seat platform, back stay tube and connecting rod just can the linkage be folded and be closed together, preceding foot pipe, hand (hold) straight tube and back foot pipe are also folded and are closed together, the hand (hold) return bend can directly be folded and be closed up on the hand (hold) straight tube at last. Thus, the improved folding bicycle frame has the advantages of simple structure, easy operation, small volume after folding and the like.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front side perspective view of fig. 1.

Fig. 3 is an exploded view of fig. 2.

Fig. 4 is a rear side perspective view of fig. 1.

Fig. 5 is a schematic structural view of the handle bent pipe bending relative to the handle straight pipe of the present invention.

Fig. 6 is a schematic view of the first lock member unlocking the sliding of the lower ends of the two handle straight tubes in the mounting member, the lower ends of the handle straight tubes sliding downward.

Fig. 7 is a schematic view of the structure of fig. 6 which is continuously folded.

Fig. 8 is a schematic structural view of the folded frame of fig. 7 (the handle elbow is not completely folded).

Fig. 9 is a cross-sectional view of fig. 8.

Fig. 10 is a schematic view of the handle elbow of fig. 8 also fully collapsed.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the drawings.

As shown in fig. 1 to 9, the seat comprises a front leg pipe 1, a rear leg pipe 2, a mounting piece 3, a handle straight pipe 4, a sliding groove 41, a handle bent pipe 5, a rotating joint 6, a front support pipe 7, a sliding shaft 71, a rear support pipe 8, a seat platform 9, a connecting rod 10, a front wheel 11, a rear wheel 12, an operating button 13 and a secondary lock 14.

A folding frame of a baby stroller is shown in figures 1-4, and is a skeleton structure of the baby stroller for facilitating the taking of a baby, and mainly comprises a front foot tube 1, a rear foot tube 2, two handle straight tubes 4, a handle bent tube 5 and the like.

The front foot tube 1 is a U-shaped tube with a backward opening, and front wheels 11 are respectively arranged on two sides of the U-shaped front part of the front foot tube 1; the rear foot tube 2 is a U-shaped tube with a forward opening, and two sides of the U-shaped rear part of the rear foot tube 2 are respectively provided with a rear wheel 12; the U-shaped two ends of the front foot tube 1 are respectively provided with a plastic mounting piece 3 which is fixedly mounted, and specifically, the end part of the front foot tube 1 and the front part of the mounting piece 3 are riveted into a whole; the U type both ends of back foot pipe 2 rotate respectively and articulate on two installed parts 3, and the U type tip of back foot pipe 2 makes rotation hinge with the installed part 3 of homonymy promptly, and the U type tip of back foot pipe 2 articulates at installed part 3 rear portion.

The handle bent pipe 5 is an inverted U-shaped pipe with a downward opening, a rotating joint 6 is arranged between each of two inverted U-shaped ends of the handle bent pipe 5 and the upper ends of the two handle straight pipes 4, and the handle bent pipe 5 is provided with an operating button 13 and a secondary lock 14; the lower ends of the two handle straight pipes 4 are synchronously lifted and slidably mounted in the two mounting parts 3 respectively, namely, the lifting sliding assembly is formed between the lower ends of the handle straight pipes 4 on the same side and the mounting parts 3, the structural design of the two sides is completely the same, the mounting parts 3 are provided with a lifting hole which is communicated up and down, then the lower ends of the handle straight pipes 4 are lifted and slidably mounted in the lifting holes and extend out and expose from the bottoms of the lifting holes, and the sliding track lines of the lower ends of the two handle straight pipes 4 in the lifting holes are parallel to the axial lead of the front foot pipe 1, namely, the front foot pipe 1 and the handle straight pipes 4 on the side surface shown in the figure 1.

The mounting part 3 is provided with a first locking part (not shown) for locking or unlocking the sliding of the lower ends of the two handle straight pipes 4, the first locking part has more design structures on the folding frame of the current baby stroller, and the first locking part is usually matched with a lock pin and a lock hole, namely, the lock pin on the mounting part 3 enters the lock hole on the handle straight pipe 4, so that the sliding of the lower end of the handle straight pipe 4 in the lifting hole is locked by the first locking part, otherwise, when the lock pin on the mounting part 3 is separated from the lock hole on the handle straight pipe 4, the sliding of the lower end of the handle straight pipe 4 in the lifting hole is unlocked by the first; therefore, in view of the many slide lock structures that can achieve the design purpose, the present embodiment will not be described in detail with respect to specific structures.

Meanwhile, a front supporting pipe 7 and a rear supporting pipe 8 which are transversely arranged are further arranged in the frame, the front supporting pipe 7 is a front bent pipe with two forward bent ends, the rear supporting pipe 8 is a rear bent pipe with two backward bent ends, and a seat platform 9 which is mutually rotatably connected is arranged between the front supporting pipe 7 and the rear supporting pipe 8, so that a seat for a baby to sit on can be detachably arranged on the seat platform 9, and the seat can be rotatably used for 360 degrees through the seat platform.

Two ends of the front supporting pipe 7 are respectively installed at the lower ends of the two handle straight pipes 4 along the axial direction in a sliding manner, and the specific structure is as follows: the lower end of the handle straight tube 4 is provided with a sliding chute 41 extending along the axial direction, and the end part of the front supporting tube 7 is provided with a sliding shaft 71 which is slidably assembled in the sliding chute 41; the mounting member 3 is further provided with a second locking member (not shown), which is mainly used for locking or unlocking the sliding of the end portion of the front support tube 7, and since the design structure of the second locking member is also quite common and can adopt a similar structure to that of the first locking member, the detailed structure of the second locking member will not be described in detail in this embodiment.

The rear supporting tube 8 both ends articulate respectively on two landing legs of U type back foot pipe 2, all be equipped with articulated connecting rod 10 of each other between the landing leg of every hand (hold) 4 lower extreme and back foot pipe 2 homonymy, this connecting rod front end articulates on the medial surface of hand (hold) 4 lower extreme, connecting rod 10 rear end articulates on the lateral surface of back foot pipe 2.

Therefore, through the above-mentioned structural connection, when the whole frame is in the unfolded state, as shown in fig. 1, the lower end of the handle straight tube 4 slides up in the mounting part 3 and is locked by the first locking part, and at the same time, the end part of the front supporting tube 7 slides downward along the axial direction of the handle straight tube 4 and is locked by the second locking part, that is, the sliding shaft 71 at the end part of the front supporting tube 7 slides downward to the lowest position of the sliding groove 41 at the lower end of the handle straight tube 4, and the front supporting tube 7 is locked by the second locking part, at this time, the front leg tube 1, the rear leg tube 2 and the handle straight tube 4 can form a stable inverted Y shape, the handle straight tube 4, the rear leg tube 2 and the connecting rod 10 can form a stable triangle, and the front supporting tube 7 and the rear supporting tube 8 will support and raise the seat platform 9 together, that is, the seat is mounted on the seat platform 9 and can have a, is more convenient to take care of when being close to the mother.

The folding operation of the frame is as shown in fig. 5-10 in sequence, the rotating joint 6 can be controlled to be locked or unlocked in a rotating stroke, namely, a certain rotating angle through the pressing of the operating button 13, so that the handle bent pipe 5 can conveniently use and adjust each bending angle in a certain rotating stroke relative to the handle straight pipe 4, and parents with different heights can comfortably use the height of the handrail; if the operating button 13 is pressed and the two locks 14 are used in cooperation, the purpose of completely unlocking the rotary joint 6 can be achieved, that is, the rotary joint 6 is not limited to rotate in the rotation stroke, the handle bent pipe 5 can be folded and folded relative to the handle straight pipe 4, and the first locking piece and the second locking piece can be synchronously unlocked, at this time, the first locking piece is unlocked to enable the lower end of the handle straight pipe 4 to slide and descend in the installation piece 3, so as to drive the rotary joint 6 to abut against the installation piece 3, meanwhile, the second locking piece is unlocked to enable the end part of the front supporting pipe 7 to slide upwards along the axial direction of the handle straight pipe 4, that is, the sliding shaft 71 slides upwards to the highest position of the sliding groove 41, the front supporting pipe 7, the seat platform 9, the rear supporting pipe 8 and the connecting rod 10 can be folded and folded in the rear foot pipe 2, the rear foot pipe 2 is folded and folded between the two handle straight pipes 4, the handle bent tube 5 is then bent further to fold and close on the handle straight tube 4, and the final folded state of the frame is completed as shown in fig. 10.

The utility model relates to a this kind of folding frame not only adapting unit is less, and the structure is comparatively simple, and frame and installation seat's seat platform 9 can realize integrative folding moreover, and it is easier to operate, and folding back volume is less, especially length direction control very short, the convenient storage.

The above description is only an embodiment of the present invention, and it should be understood by those skilled in the art that any structural design equivalent to this embodiment is included in the scope of the present invention.

Claims

1. A folding frame of a baby stroller comprises a U-shaped front foot tube (1), a U-shaped rear foot tube (2), two handle straight tubes (4) and an inverted U-shaped handle bent tube (5); the U-shaped two ends of the front foot tube (1) are respectively provided with a fixedly installed installation part (3), and the U-shaped two ends of the rear foot tube (2) are respectively and rotatably hinged on the two installation parts (3); a rotary joint (6) is arranged between the two inverted U-shaped ends of the handle bent pipe (5) and the upper ends of the two handle straight pipes (4) respectively, and the bicycle frame is characterized in that a front supporting pipe (7) and a rear supporting pipe (8) which are transversely arranged are further arranged in the bicycle frame, and a seat platform (9) which is mutually and rotatably connected is arranged between the front supporting pipe (7) and the rear supporting pipe (8); the lower ends of the two handle straight pipes (4) are respectively and synchronously installed in the two installation pieces (3) in a lifting and sliding manner; two ends of the front supporting tube (7) are respectively installed at the lower ends of the two handle straight tubes (4) in an axial sliding manner, two ends of the rear supporting tube (8) are respectively hinged to two supporting legs of the U-shaped rear foot tube (2), and a connecting rod (10) which is mutually hinged is arranged between the lower end of each handle straight tube (4) and the supporting leg at the same side of the rear foot tube (2); the installation part (3) is provided with a first locking part and a second locking part, the first locking part locks or unlocks the sliding of the lower end of the handle straight pipe (4), and the second locking part locks or unlocks the sliding of the end part of the front supporting pipe (7).

2. The foldable stroller frame of claim 1, wherein the stroller frame is unfolded, the lower end of the straight handle tube (4) slides up in the mounting member (3) and is locked by the first locking member, the end of the front support tube (7) slides down along the axial direction of the straight handle tube (4) and is locked by the second locking member, the front leg tube (1), the rear leg tube (2) and the straight handle tube (4) form a stable inverted Y shape, the straight handle tube (4), the rear leg tube (2) and the connecting rod (10) form a stable triangle, and the front support tube (7) and the rear support tube (8) support and lift up the seat platform (9); the frame fold, this first latch fitting unblock makes hand (hold) straight tube (4) lower extreme slide in installed part (3) and descend, and then drives and rotate joint (6) near installed part (3), the unblock of second latch fitting makes preceding stay tube (7) tip upwards slide along the axial of hand (hold) straight tube (4) simultaneously, this preceding stay tube (7), seat platform (9), back stay tube (8) and connecting rod (10) linkage are folded and are closed, preceding leg (1), hand (hold) straight tube (4) and back leg (2) also fold and close.

3. A foldable frame for baby stroller according to claim 2, wherein the lower end of the straight handle tube (4) is provided with a sliding slot (41) extending along the axial direction, the end of the front support tube (7) is provided with a sliding shaft (71) slidably fitted in the sliding slot (41), the frame is unfolded, the sliding shaft (71) slides downwards to the lowest part of the sliding slot (41), the front support tube (7) is locked by the second locking member, the frame is folded, and the sliding shaft (71) slides upwards to the highest part of the sliding slot (41).

4. A stroller folding frame according to claim 2, characterized in that said frame is folded such that said front support tube (7), said seat platform (9), said rear support tube (8) and said connecting rod (10) are folded together in a linked manner inside said rear leg tube (2).

5. A stroller frame according to claim 2, wherein said frame is folded such that said rear leg (2) is folded between said straight handle tubes (4).

6. The foldable frame for baby stroller as claimed in claim 1, wherein the mounting member (3) has a lifting hole, and the lower end of the straight handle tube (4) is slidably mounted in the lifting hole and extends out of the bottom of the lifting hole.

7. The foldable stroller frame of claim 1, wherein the front end of the connecting rod (10) is hinged to the inner side of the lower end of the straight handle tube (4), and the rear end of the connecting rod (10) is hinged to the outer side of the rear leg tube (2).

8. A stroller folding frame according to claim 1, characterized in that the U-shaped end of the front leg (1) is fixedly mounted in front of the mounting member (3) and the U-shaped end of the rear leg (2) is hinged in rear of the mounting member (3).

9. The foldable stroller frame of claim 1, wherein the handle elbow (5) is provided with an operating button (13) and a secondary lock (14), and the operating button (13) controls the rotary joint (6) to lock or unlock the gear rotation in the rotation stroke; operating button (13) press and cooperate two locks (14) simultaneously and unblock rotation joint (6) completely, this hand (hold) return bend (5) are folded and are drawn together relatively hand (hold) straight tube (4), and then unblock first latch fitting and second latch fitting in step.