Folding baby carriage

Abstract

The utility model discloses a folding baby carriage which comprises a carriage frame, a seat body and a walking wheel assembly, and the seat body and the walking wheel assembly are installed on the carriage frame. The frame comprises a handrail part, a folding part and an underframe part, the lower end of the folding part is hinged to the underframe part, and the upper end of the folding part is hinged to the lower end of the handrail part; the included angle between the folding part and the bottom frame part is a lower folding angle, the included angle between the folding part and the armrest part is an upper folding angle, and the lower folding angle and the upper folding angle are opposite in orientation; the frame is provided with a connecting rod assembly, the connecting rod assembly comprises a lower sliding piece, an upper sliding piece, a lower connecting rod and an upper connecting rod, friction damping exists between the lower sliding piece and the folding part, friction damping exists between the upper sliding piece and the handrail part, one end of the lower connecting rod is hinged to the lower sliding piece, and the other end of the lower connecting rod is hinged to the underframe part; and the other end is hinged with the upper sliding piece. The folding baby carriage has the effect that the folding and unfolding convenience of the folding baby carriage is improved.

Description

Technical Field

[0001] The present application relates to the field of infant products, and in particular to a foldable baby stroller. Background Art

[0002] A baby stroller is a tool vehicle designed for babies. It provides great convenience for parents to take their babies out for shopping or outdoor activities.

[0003] In order to reduce the space occupied by the stroller when it is stored, some strollers are designed to be foldable. The convenience of folding and unfolding the foldable stroller has a great impact on the use experience of the stroller. Currently, the convenience of folding and unfolding the foldable stroller is insufficient. Utility Model Content

[0004] In order to improve the convenience of folding and unfolding a foldable baby stroller, the present application provides a foldable baby stroller.

[0005] The present application provides a foldable baby stroller adopting the following technical solution:

[0006] A foldable baby stroller comprises a frame, a seat body and a running wheel assembly, wherein the seat body and the running wheel assembly are respectively mounted on the frame; the frame comprises an armrest portion, a folding portion and a bottom frame portion, wherein the lower end of the folding portion is hinged to the bottom frame portion, and the upper end of the folding portion is hinged to the lower end of the armrest portion; the angle between the folding portion and the bottom frame portion is a lower folding angle, and the angle between the folding portion and the armrest portion is an upper folding angle, and the lower folding angle and the upper folding angle are in opposite directions; the frame is provided with a connecting rod assembly, and the connecting rod assembly The component includes a lower sliding member, an upper sliding member, a lower connecting rod and an upper connecting rod, the lower sliding member and the folding part are slidingly connected along the length direction of the folding part, and there is friction damping between the lower sliding member and the folding part, the upper sliding member and the armrest part are slidingly connected along the length direction of the armrest part, and there is friction damping between the upper sliding member and the armrest part, one end of the lower connecting rod is hinged to the lower sliding member, and the other end is hinged to the base frame, one end of the upper connecting rod is hinged to the lower sliding member, and the other end is hinged to the upper sliding member.

[0007] By adopting the above technical solution, the armrest, folding part and bottom frame of the frame together form an upper and lower folding structure. The armrest, folding part and bottom frame of the frame are connected by a connecting rod assembly. Since there is friction damping between the upper sliding part and the armrest of the connecting rod assembly, and there is friction damping between the lower sliding part and the folding part, the connecting rod assembly can play a role in stabilizing the shape of the frame. By lifting or pressing down the armrest, the armrest can simultaneously drive the folding part to unfold or fold, making the folding or unfolding process of the frame more convenient.

[0008] Optionally, the seat body is mounted on the armrest portion.

[0009] By adopting the above technical solution, the seat body is installed on the armrest part, so that the height of the seat body is higher, which is beneficial to reducing the impact of ground smoke and dust on babies.

[0010] Optionally, the seat body is provided with a connecting piece, the connecting piece is hinged to the armrest part, the connecting piece is hingedly provided with a hinged rod, one end of the hinged rod away from the connecting piece is hinged to the folding part, and the armrest part, folding part, connecting piece and hinged rod form a four-bar linkage.

[0011] By adopting the above technical solution, the seat body is connected to the armrest part through the connecting piece, and the seat body is connected to the folding part through the connecting piece and the hinged rod, so that there are two connection points between the seat body and the frame, which is conducive to improving the stability of the connection between the seat body and the frame. The seat body, the armrest part, the hinged rod and the connecting piece form a four-bar linkage. When the armrest part swings slightly, the angle change of the seat body is small, which is conducive to reducing the shaking of the baby.

[0012] Optionally, the connecting rod assembly is provided with two groups, and is arranged opposite to each other, and a connecting rod is connected between the lower sliding members of the two groups of the connecting rod assemblies.

[0013] By adopting the above technical solution, the connecting rod assembly is arranged in two groups, which is conducive to ensuring the structural stability of the frame. The lower sliding members of the two groups of connecting rod assemblies are connected by a connecting rod, which is conducive to keeping the shape changes of the two groups of connecting rod assemblies synchronous, thereby making the folding or unfolding action of the frame smoother and more stable.

[0014] Optionally, the upper connecting rod is located on the inner side of the upper folding angle, and the lower connecting rod is located on the inner side of the lower folding angle.

[0015] By adopting the above technical scheme, the gravity load of the baby and the seat body acts on the armrest part, the load on the armrest part acts on the folding part through the upper connecting rod, and the load on the folding part acts on the base frame through the lower connecting rod; the upper connecting rod is arranged on the inner side of the upper folding angle, which is beneficial to the stable and continuous load transfer between the armrest part and the folding part; the lower connecting rod is arranged on the inner side of the lower folding angle, which is beneficial to the stable and continuous load transfer between the folding part and the base frame.

[0016] Optionally, the seat body comprises a seat portion and a backrest portion, and a connection point between the seat portion and the backrest portion is located between a hinge point between the armrest portion and the folding portion and the upper connecting rod.

[0017] By adopting the above technical solution, when the baby is on the seat body, the center of gravity of the baby's body is close to the connection between the seat and the backrest; by making the connection point between the seat and the backrest between the upper hinge point of the folding part and the upper connecting rod, the center of gravity of the seat body in use is between the hinge point between the armrest and the folding part and the upper connecting rod, which is conducive to making the center of gravity of the seat body in use more stable.

[0018] Optionally, the lower end of the armrest portion is provided with a first limiting surface for the upper sliding member to abut against, and a spacing margin is left between the first limiting surface and the lower hinge point of the armrest portion; the folding portion is provided with a second limiting surface for the lower sliding member to abut against, and a spacing margin is left between the second limiting surface and the upper hinge point of the folding portion.

[0019] By adopting the above technical solution, the upper connecting rod, the armrest part and the folding part form a triangular structure, and by providing the first limiting surface and the second limiting surface, the angle of the triangle formed by the upper connecting rod, the armrest part and the folding part can be limited. Therefore, when a person's fingers accidentally extend into the triangular area formed by the upper connecting rod, the armrest part and the folding part during the folding of the frame, it is not easy to get pinched.

[0020] Optionally, the cross-section of the upper connecting rod is circular or elliptical.

[0021] By adopting the above technical solution, when a person's limbs accidentally extend into the triangular area formed by the upper connecting rod, the armrest portion and the folding portion and are squeezed by the upper connecting rod, the damage to the person's limbs by the upper connecting rod is reduced because the cross-section of the upper connecting rod is circular or elliptical.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The armrest, folding part and bottom frame of the frame are connected by a connecting rod assembly. Since there is friction damping between the upper sliding part of the connecting rod assembly and the armrest, and there is friction damping between the lower sliding part and the folding part, the connecting rod assembly can play a role in stabilizing the shape of the frame. By lifting or pressing down the armrest, the armrest can simultaneously drive the folding part to unfold or fold, making the folding or unfolding process of the frame more convenient.

[0024] 2. By locating the connection point between the seat and the backrest between the upper hinge point of the folding portion and the upper connecting rod, the center of gravity of the seat body when in use is located between the hinge point between the armrest and the folding portion and the upper connecting rod, which helps to make the center of gravity of the seat body more stable when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 2 is a side view of the foldable baby stroller of this embodiment.

[0026] Figure 2It is a perspective view of the foldable baby stroller of this embodiment.

[0027] Description of reference numerals:

[0028] 1. Frame; 11. Armrest; 12. Folding part; 121. Folding rod; 13. Base frame; 2. Seat body; 21. Seat; 22. Backrest; 23. Connecting piece; 24. Articulated rod; 3. Travel wheel assembly; 31. Front wheel; 32. Rear wheel; 4. Lower folding angle; 5. Upper folding angle; 6. Connecting rod assembly; 61. Lower sliding piece; 62. Upper sliding piece; 63. Lower connecting rod; 64. Upper connecting rod; 65. Connecting rod; 7. First limiting surface; 8. Second limiting surface. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-2 This application is described in further detail.

[0030] The present application embodiment discloses a foldable baby stroller. Figure 1 The foldable baby stroller includes a frame 1, a seat body 2 and a running wheel assembly 3, and the seat body 2 and the running wheel assembly 3 are respectively installed on the frame 1; the frame 1 as a whole is a rod frame structure, and the frame 1 includes an armrest portion 11, a folding portion 12 and a bottom frame portion 13, the lower end of the folding portion 12 is hinged to the bottom frame portion 13, and the upper end of the folding portion 12 is hinged to the lower end of the armrest portion 11; the angle between the folding portion 12 and the bottom frame portion 13 is a lower folding angle 4, and the angle between the folding portion 12 and the armrest portion 11 is an upper folding angle 5, and the lower folding angle 4 and the upper folding angle 5 are in opposite directions.

[0031] The armrest portion 11 , the folding portion 12 and the bottom frame portion 13 of the frame 1 together form an upper and lower folding structure. When the frame 1 is folded or unfolded, the upper folding angle 5 and the lower folding angle 4 of the frame 1 change, so that the height of the frame 1 changes.

[0032] Reference Figure 1 The seat body 2 includes a seat portion 21 and a backrest portion 22. The backrest portion 22 of the seat body 2 is provided with a connecting piece 23, which is hinged to the armrest portion 11. The connecting piece 23 is provided with a hinged rod 24. One end of the hinged rod 24 is hinged to the connecting piece 23, and the other end is hinged to the folding portion 12. The armrest portion 11, the folding portion 12, the connecting piece 23 and the hinged rod 24 form a four-bar linkage.

[0033] Reference Figure 2 The armrest portion 11 is a U-shaped rod as a whole, and the length direction of the armrest portion 11 is the direction of the U-shaped mouth of the U-shaped rod. The frame portion 13 is a frame-shaped structure as a whole. The folding portion 12 includes two folding rods 121 parallel to each other. The length direction of the folding portion 12 is the length direction of the folding rod 121. One end of the folding rod 121 is hinged to one end of the armrest portion 11, and the other end of the folding rod 121 is hinged to the frame portion 13.

[0034] Reference Figure 2 The walking wheel assembly 3 includes a front wheel 31 and a rear wheel 32 . The front wheel 31 is mounted on the base frame 13 , and the rear wheel 32 is mounted on the lower end of the folding portion 12 .

[0035] Reference Figure 2 The frame 1 is provided with two groups of connecting rod assemblies 6, and the two groups of connecting rod assemblies 6 correspond to two folding rods 121 respectively. The connecting rod assembly 6 includes a lower sliding member 61, an upper sliding member 62, a lower connecting rod 63 and an upper connecting rod 64, wherein the upper connecting rod 64 and the lower connecting rod 63 are both round rods, and the lower sliding member 61 and the upper sliding member 62 are both cylindrical structures; the lower sliding member 61 is slidably connected to the folding rod 121 of the folding part 12 along the length direction of the folding rod 121, and a connecting rod 6 is connected between the lower sliding members 61 of the two groups of connecting rod assemblies 6 5. There is friction damping between the lower sliding member 61 and the folding rod 121; the upper sliding member 62 and the armrest portion 11 are slidably connected along the length direction of the armrest portion 11, and there is friction damping between the upper sliding member 62 and the armrest portion 11; one end of the lower connecting rod 63 is hinged to the lower sliding member 61, and the other end is hinged to the bottom frame portion 13, and the lower connecting rod 63 is located on the inner side of the lower folding angle 4; one end of the upper connecting rod 64 is hinged to the lower sliding member 61, and the other end is hinged to the upper sliding member 62, and the upper connecting rod 64 is located on the inner side of the upper folding angle 5.

[0036] Reference Figure 2 The lower end of the armrest portion 11 is provided with a first limiting surface 7 for the upper sliding member 62 to abut against, and a spacing margin is left between the first limiting surface 7 and the lower hinge point of the armrest portion 11; the folding portion 12 is provided with a second limiting surface 8 for the lower sliding member 61 to abut against, and a spacing margin is left between the second limiting surface 8 and the upper hinge point of the folding portion 12. The first limiting surface 7 and the second limiting surface 8 are both end surfaces of the hinge structure between the armrest portion 11 and the folding rod 121.

[0037] The upper connecting rod 64, the armrest portion 11 and the folding portion 12 form a triangular structure, and the first limiting surface 7 and the second limiting surface 8 can limit the angle of the triangle formed by the upper connecting rod 64, the armrest portion 11 and the folding portion 12. Therefore, when a person's fingers accidentally extend into the triangular area formed by the upper connecting rod 64, the armrest portion 11 and the folding portion 12 during the folding process of the frame 1, it is not easy to get pinched.

[0038] Reference Figure 1 In order to make the baby carriage more stable during travel, it is necessary to control the center of gravity of the seat body 2. Specifically, by making the connection point between the seat portion 21 and the backrest portion 22 of the seat body 2 located between the hinge point between the armrest portion 11 and the folding portion 12 and the upper connecting rod 64, the center of gravity of the seat body 2 in the use state is located between the hinge point between the armrest portion 11 and the folding portion 12 and the upper connecting rod 64, which is conducive to making the center of gravity of the seat body 2 in the use state more stable.

[0039] The implementation principle of a foldable baby stroller in the embodiment of the present application is as follows: the armrest portion 11, the folding portion 12 and the bottom frame portion 13 of the frame 1 are connected by a connecting rod assembly 6. Since there is friction damping between the upper sliding member 62 of the connecting rod assembly 6 and the armrest portion 11, and there is friction damping between the lower sliding member 61 and the folding portion 12, the connecting rod assembly 6 can play a role in stabilizing the shape of the frame 1. By lifting or pressing down the armrest portion 11, the armrest portion 11 can simultaneously drive the folding portion 12 to unfold or fold, making the folding or unfolding process of the frame 1 more convenient.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A foldable baby stroller, comprising a frame (1), a seat body (2) and a running wheel assembly (3), wherein the seat body (2) and the running wheel assembly (3) are respectively mounted on the frame (1); characterized in that: The frame (1) comprises an armrest portion (11), a folding portion (12) and a bottom frame portion (13); the lower end of the folding portion (12) is hinged to the bottom frame portion (13), and the upper end of the folding portion (12) is hinged to the lower end of the armrest portion (11); the angle between the folding portion (12) and the bottom frame portion (13) is a lower folding angle (4), the angle between the folding portion (12) and the armrest portion (11) is an upper folding angle (5), and the lower folding angle (4) and the upper folding angle (5) are in opposite directions; The frame (1) is provided with a connecting rod assembly (6), the connecting rod assembly (6) comprising a lower sliding member (61), an upper sliding member (62), a lower connecting rod (63) and an upper connecting rod (64); the lower sliding member (61) is slidably connected to the folding portion (12) along the length direction of the folding portion (12); there is friction damping between the lower sliding member (61) and the folding portion (12); the upper sliding member (62) is slidably connected to the armrest portion (11) along the length direction of the armrest portion (11); there is friction damping between the upper sliding member (62) and the armrest portion (11); one end of the lower connecting rod (63) is hinged to the lower sliding member (61), and the other end is hinged to the bottom frame portion (13); one end of the upper connecting rod (64) is hinged to the lower sliding member (61), and the other end is hinged to the upper sliding member (62).

2. A foldable baby stroller according to claim 1, characterized in that: The seat body (2) is mounted on the armrest portion (11).

3. A foldable baby stroller according to claim 1, characterized in that: The seat body (2) is provided with a connecting piece (23), the connecting piece (23) is hinged to the armrest portion (11), the connecting piece (23) is hingedly provided with a hinged rod (24), one end of the hinged rod (24) away from the connecting piece (23) is hinged to the folding portion (12), and the armrest portion (11), the folding portion (12), the connecting piece (23) and the hinged rod (24) form a four-bar linkage.

4. A foldable baby stroller according to claim 1, characterized in that: The connecting rod assemblies (6) are provided in two groups and are arranged opposite to each other. A connecting rod (65) is connected between the lower sliding members (61) of the two groups of connecting rod assemblies (6).

5. A foldable baby stroller according to claim 1, characterized in that: The upper connecting rod (64) is located on the inner side of the upper folding angle (5), and the lower connecting rod (63) is located on the inner side of the lower folding angle (4).

6. A foldable baby stroller according to claim 1, characterized in that: The seat body (2) comprises a seat portion (21) and a backrest portion (22), wherein a connection point between the seat portion (21) and the backrest portion (22) is located between a hinge point between the armrest portion (11) and the folding portion (12) and the upper connecting rod (64).

7. A foldable baby stroller according to claim 1, characterized in that: The lower end of the armrest portion (11) is provided with a first limiting surface (7) for the upper sliding member (62) to abut against, and a spacing margin is left between the first limiting surface (7) and the lower hinge point of the armrest portion (11); the folding portion (12) is provided with a second limiting surface (8) for the lower sliding member (61) to abut against, and a spacing margin is left between the second limiting surface (8) and the upper hinge point of the folding portion (12).

8. A foldable baby stroller according to claim 7, characterized in that: The cross section of the upper connecting rod (64) is circular or elliptical.

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