A baby stroller

Abstract

The invention discloses a baby carriage, which can be moved from an unfolded position to a folded position after a locking device is unlocked, and comprises: a front leg (1), wherein the lower end of the front leg (1) is rotatably connected to a front wheel connecting frame (2), and the front wheel connecting frame (2) is connected to a front wheel (3); a rear leg (4), wherein the lower end of the rear leg (4) is connected to a rear wheel (5), and a rear support rod (6) rotatably connected to the upper end of the rear leg (4) and the front leg (1) is provided between the upper end of the rear leg (4) and the front leg (1); a first connecting rod (7), wherein one end of the first connecting rod (7) is rotatably connected to the rear leg (4) and the other end is rotatably connected to the front leg (1); and a second connecting rod (8), wherein one end of the second connecting rod (8) is rotatably connected to the front wheel connecting frame (2) and the other end is rotatably connected to the rear support rod (6). The invention has a simple structure, is convenient to fold, and has a small volume after folding.

Description

[Technical field]

[0001] The invention relates to a baby carriage. [Background technology]

[0002] Strollers are an indispensable product for infants and young children to grow up. Traditional strollers can generally be folded for easy carrying or storage. However, traditional strollers have a complex structure, are inconvenient to fold, and are large in size after folding, making them inconvenient to carry.

[0003] Therefore, the present invention is just produced based on the above shortcomings. [Summary of the invention]

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a baby carriage which has a simple structure, is convenient to fold and has a small volume after being folded.

[0005] The present invention is achieved through the following technical solutions:

[0006] A baby carriage, which can be moved from an unfolded position to a folded position after a locking device is unlocked, is characterized in that it comprises:

[0007] A front leg 1, wherein the lower end of the front leg 1 is rotatably connected to a front wheel connecting frame 2, and the front wheel connecting frame 2 is connected to a front wheel 3;

[0008] A rear leg 4, wherein the lower end of the rear leg 4 is connected to a rear wheel 5, and a rear support rod 6 is provided between the upper end of the rear leg 4 and the front leg 1 to be rotatably connected to the two;

[0009] A first connecting rod 7, one end of which is rotatably connected to the rear leg 4, and the other end of which is rotatably connected to the front leg 1;

[0010] The second connecting rod 8 has one end rotatably connected to the front wheel connecting frame 2 and the other end rotatably connected to the rear support rod 6 .

[0011] The baby carriage as described above is characterized in that the second connecting rod 8, the rear support rod 6 and the rear leg 4 are coaxially hinged.

[0012] The baby carriage as described above is characterized in that the first connecting rod 7, the front leg 1 and the front wheel connecting frame 2 are coaxially hinged.

[0013] The baby stroller as described above is characterized in that: a transverse crossbar 10 is provided on the front wheel connecting frame 2, the second connecting rod 8 is hinged on the crossbar 10 to achieve a rotational connection with the front wheel connecting frame 2, the crossbar 10 is bow-shaped, and the second connecting rod 8 is hinged at the bow-shaped bottom of the bow-shaped crossbar 10.

[0014] The baby stroller as described above is characterized in that: the rear support rod 6 is provided with an upwardly protruding connecting ear 11, the connecting ear 11 is connected to a seat rod 12, the seat rod 12 is also provided with a connecting portion 13, and the seat rod 12 is rotatably connected to the front leg 1 through the connecting portion 13.

[0015] The baby stroller as described above is characterized in that: the baby stroller also includes a backrest 14, the seat rod 12 is provided with a fixed connection position 15 and a sliding seat 16 that can slide relative to the seat rod 12, the lower end of the backrest 14 is rotatably connected to the sliding seat 16, and a connecting rod 17 is provided between the connection position 15 and the backrest 14 to which the two are hinged.

[0016] The baby carriage as described above is characterized in that: the upper end of the front leg 1 is also connected to a push rod 9.

[0017] The baby carriage as described above is characterized in that the push rod 9 is slidably connected to the front leg 1 and can be extended and retracted inside the front leg 1 .

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. When the baby stroller of the present invention is folded, the lower end of the rear support rod is pulled obliquely backward to lift the baby stroller, and the rear support rod rotates relative to the front legs. When the lower end of the rear support rod moves obliquely backward, the second connecting rod pulls the front wheel connecting frame to rotate relative to the front legs, so that the front wheel connecting frame and the front wheel are folded. At the same time, when the lower end of the rear support rod is pulled, the upper end of the rear leg is also subjected to tension, and the upper end of the rear leg has a tendency to move outward. A first connecting rod is provided between the rear leg and the front leg and is hinged to the two. Combined with the self-weight of the rear leg and the rear wheel, when the baby stroller is lifted, the first connecting rod pulls the rear leg, so that the lower end of the rear leg moves closer to the front leg and folds. Therefore, as long as a pulling force is applied obliquely upward to the rear support rod, the folding of the baby stroller can be easily achieved, and the whole operation process is very convenient and quick. In addition, the entire baby stroller has a simple structure and a small volume after folding, so it can be easily carried.

[0020] 2. The rear support rod of the present invention is provided with an upwardly protruding connection ear, and the connection ear is connected to the seat rod, and the seat rod is further provided with a connection portion, and the seat rod is rotatably connected to the front leg through the connection portion. Therefore, when the rear support rod rotates relative to the front leg, the rear support rod pushes the seat rod through the connection ear, and the seat rod rotates relative to the front leg through the connection portion, so that the seat rod is folded, and the operation is very convenient.

[0021] 3. The baby stroller of the present invention also includes a backrest, the lower end of which is rotatably connected to a sliding seat. When the baby stroller is folded, the backrest is first pushed forward, and the backrest rotates around the position where it is connected to the linkage rod. The lower end of the backrest moves toward the rear end of the seat rod through the sliding of the sliding seat on the seat rod. At the same time, the linkage rod also rotates around the position where it is connected to the connection position, thereby realizing the folding of the backrest. The folding of the backrest can be realized by pushing the backrest, and the whole operation is very simple and quick. Moreover, the folded volume of the entire baby stroller can be small after the backrest is folded while ensuring that the backrest has a sufficient height.

[0022] 4. The present invention has a simple structure, low cost, and small volume after folding, and is suitable for popularization and application.

Brief Description of the Drawings

[0023] Figure 1 is a stereogram of Embodiment 1 of the present invention;

[0024] Figure 2 is a side view of embodiment 1 of the present invention;

[0025] Figure 3 is a side view of Example 1 of the present invention during the folding process;

[0026] Figure 4 is a side view of embodiment 1 of the present invention in a folded state;

[0027] Figure 5 is a side view of embodiment 2 of the present invention;

[0028] Figure 6 is a side view of embodiment 3 of the present invention;

[0029] Figure 7 is one of the schematic diagrams of the components of Embodiment 3 of the present invention;

[0030] Figure 8 This is a second side view of a component of Embodiment 3 of the present invention;

[0031] Fig. 9 is a side view of Example 3 of the present invention during the folding process;

[0032] Fig.10 It is a side view of embodiment 3 of the present invention in a folded state. [Specific implementation method]

[0033] The present invention will be further described below in conjunction with the accompanying drawings:

[0034] Embodiment 1:

[0035] like Figures 1 to 4 As shown, a baby carriage can be moved from an unfolded position to a folded position after a locking device is unlocked, comprising:

[0036] A front leg 1, wherein the lower end of the front leg 1 is rotatably connected to a front wheel connecting frame 2, and the front wheel connecting frame 2 is connected to a front wheel 3;

[0037] A rear leg 4, wherein the lower end of the rear leg 4 is connected to a rear wheel 5, and a rear support rod 6 is provided between the upper end of the rear leg 4 and the front leg 1 to be rotatably connected to the two;

[0038] A first connecting rod 7, one end of which is rotatably connected to the rear leg 4, and the other end of which is rotatably connected to the front leg 1;

[0039] The second connecting rod 8 has one end rotatably connected to the front wheel connecting frame 2 and the other end rotatably connected to the rear support rod 6 .

[0040] like Figures 2 to 4 As shown, when the baby carriage is folded, the lower end of the rear support rod 6 is pulled obliquely backward to lift the baby carriage, and the rear support rod 6 rotates relative to the front leg 1. When the lower end of the rear support rod 6 moves obliquely backward, the front wheel connecting frame 2 is pulled by the second connecting rod 8 to rotate relative to the front leg 1, so that the front wheel connecting frame 2 and the front wheel 3 are folded. At the same time, when the lower end of the rear support rod 6 is pulled, the upper end of the rear leg 4 is also subjected to tension, and the upper end of the rear leg 4 has a tendency to move outward. A first connecting rod 7 is provided between the rear leg 4 and the front leg 1, and combined with the self-weight of the rear leg 4 and the rear wheel 5, when the baby carriage is lifted, the first connecting rod 7 pulls the rear leg 4, so that the lower end of the rear leg 4 moves closer to the front leg 1 and folds. Therefore, as long as a pulling force is applied obliquely upward to the rear support rod 6, the baby carriage can be easily folded, and the whole process is very convenient and quick to operate. In addition, the entire baby carriage has a simple structure and a small volume after folding, which can be easily carried.

[0041] In this embodiment, the seat of the baby stroller can be a flexible seat bag hung on the frame, and the infant sits in the seat bag. When the baby stroller is moving, the user can push the upper end of the front leg 1 to push the baby stroller. Of course, if the convenience of pushing the baby stroller is sought, a hand push rod 9 can be slidably connected to the front leg 1, and the hand push rod 9 can be a one-stage or several-stage retractable rod. When the baby stroller is folded, the hand push rod 9 can be retracted into the front leg 1 first, or the rear support rod 6 can be pulled first to fold the rear leg 4 and the front wheel connecting frame 2 and then retract the hand push rod 9. The locking device of the baby stroller can adopt a locking method of a traditional structure, for example, a rotatable hook is set on the rear leg 4, and a pin that can cooperate with the hook when the baby stroller is unfolded is set on the rear support rod 6.

[0042] like Figures 1 to 3 As shown, the second connecting rod 8, the rear support rod 6 and the rear leg 4 are coaxially hinged, and the first connecting rod 7, the front leg 1 and the front wheel connecting frame 2 are coaxially hinged. Therefore, the baby carriage is flexible to fold and easy to operate when folded.

[0043] like Figure 1As shown, the front wheel connecting frame 2 is provided with a transverse cross bar 10, the second connecting rod 8 is hinged on the cross bar 10 to realize the rotation connection with the front wheel connecting frame 2, the cross bar 10 is arched, and the second connecting rod 8 is hinged at the arched bottom of the arched cross bar 10. Therefore, the connection position of the second connecting rod 8 and the cross bar 10 is located far below the connection position of the first connecting rod 7 and the front leg 1, so when the baby carriage is folded, the second connecting rod 8 can more easily pull the front wheel connecting frame 2 to rotate, making the folding more flexible and the folding operation more convenient.

[0044] Embodiment 2:

[0045] The difference between Example 2 and Example 1 is that:

[0046] like Figure 5 As shown, the push rod 9 is rotatably connected to the upper end of the front leg 1. When the baby carriage is folded, the push rod 9 can be rotated relative to the front leg 1 to be folded, or the rear support rod 6 can be pulled to fold the rear leg 4 and the front wheel connecting frame 2 and then the push rod 9 can be rotated.

[0047] Embodiment 3:

[0048] The difference between Example 3 and Example 1 is that:

[0049] like Figure 6 and Figure 7 As shown, the rear support rod 6 is provided with an upwardly protruding connection ear 11, the connection ear 11 is connected to a seat rod 12, the seat rod 12 is further provided with a connection portion 13, and the seat rod 12 is rotatably connected to the front leg 1 through the connection portion 13. Therefore, the seat of the baby stroller is supported by the seat rod 12, and a structure of hanging a flexible seat pocket is not adopted. Moreover, when the baby is folded, the rear support rod 6 rotates relative to the front leg 1, and the rear support rod 6 pushes the seat rod 12 through the connection ear 11 thereon, and the seat rod 12 rotates relative to the front leg 1 through the connection portion 13, so that the seat rod 12 is folded. When the baby stroller is folded, the seat rod 12 is folded together, and the operation is very convenient.

[0050] like Figures 6 to 10As shown, the baby stroller further comprises a backrest 14, a fixed connection position 15 and a sliding seat 16 which can slide relative to the seat rod 12 are provided on the seat rod 12, the lower end of the backrest 14 is rotatably connected to the sliding seat 16, and a linkage rod 17 which is hinged to the connection position 15 and the backrest 14 is provided between the connection position 15 and the backrest 14. When the baby stroller is folded, the backrest 14 is first pushed forward, and since the lower end of the backrest 14 is rotatably connected to the sliding seat 16, and the backrest 14 is hinged to the linkage rod 17, when the backrest 14 is pushed forward, the backrest 14 rotates around the position where it is connected to the linkage rod 17, and the lower end of the backrest 14 moves toward the rear end of the seat rod 12 through the sliding of the sliding seat 16 on the seat rod 12, and at the same time, the linkage rod 17 also rotates around the position where it is connected to the connection position 15, thereby realizing the folding of the backrest 14, and the whole operation is very simple and quick, and the backrest 14 can be folded by just pushing the backrest 14. When the backrest 14 is folded, the lower end of the rear support rod 6 can be pulled and lifted, so that the rear legs 4 are brought closer to the front legs 1, and the front wheel connecting frame 2 is rotated and folded relative to the front legs 1, and finally the push rod 9 is retracted. The connecting position 15 can be a protruding block arranged on the seat rod 12, and the protruding block can be integrally formed with the seat rod 12, or it can be a separate component fixed to the seat rod 12 by screws or rivets.

Claims

1. A baby stroller that can be moved from an unfolded position to a folded position after a locking device is unlocked, characterized in that: include: A front leg (1), wherein the lower end of the front leg (1) is rotatably connected to a front wheel connecting frame (2), and the front wheel connecting frame (2) is connected to a front wheel (3); A rear leg (4), wherein the lower end of the rear leg (4) is connected to a rear wheel (5), and a rear support rod (6) is provided between the upper end of the rear leg (4) and the front leg (1) for rotationally connecting the two. A first connecting rod (7), one end of which is rotatably connected to the rear leg (4) and the other end of which is rotatably connected to the front leg (1); A second connecting rod (8), one end of which is rotatably connected to the front wheel connecting frame (2) and the other end of which is rotatably connected to the rear support rod (6); The front wheel connecting frame (2) is provided with a transverse transverse rod (10), the second connecting rod (8) is hinged on the transverse rod (10) to achieve rotational connection with the front wheel connecting frame (2), the transverse rod (10) is arched, and the second connecting rod (8) is hinged at the arched bottom of the arched transverse rod (10); the rear support rod (6) is provided with an upwardly protruding connecting ear (11), the connecting ear (11) is connected to a seat rod (12), and the seat rod (12) is also provided with a connecting portion (13), and the seat rod (12) is rotationally connected to the front leg (1) through the connecting portion (13).

2. The baby stroller according to claim 1, characterized in that: The second connecting rod (8), the rear support rod (6) and the rear leg (4) are coaxially hinged.

3. The baby stroller according to claim 2, characterized in that: The first connecting rod (7), the front leg (1) and the front wheel connecting frame (2) are coaxially hinged.

4. The baby stroller according to claim 1, characterized in that: The baby carriage also includes a backrest (14), the seat rod (12) is provided with a fixed connection position (15) and a sliding seat (16) that can slide relative to the seat rod (12), the lower end of the backrest (14) is rotatably connected to the sliding seat (16), and a connecting rod (17) is provided between the connection position (15) and the backrest (14) and is hinged to the two.

5. The baby stroller according to claim 1, 2 or 3, characterized in that: The upper end of the front leg (1) is also connected to a push rod (9).

6. The baby stroller according to claim 5, characterized in that: The push rod (9) is slidably connected to the front leg (1) and can be extended and retracted inside the front leg (1).

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