CN219728296U - A kind of stroller - Google Patents

Abstract

The utility model discloses a child stroller, which comprises a stroller frame, wherein the stroller frame comprises a front support, a rear support, a push rod, a first connecting rod and a second connecting rod, one of the upper part of the front support and the upper part of the rear support is a telescopic rod assembly, the telescopic rod assembly comprises a lower support rod and an upper support rod which is arranged on the lower support rod in a sliding manner, the other of the upper part of the front support and the upper part of the rear support is rotationally connected with the lower part of the push rod through a first shaft, the other of the upper part of the front support and the upper part of the rear support is rotationally connected with the upper part of the upper support rod through a second shaft, one end part of the first connecting rod is rotationally connected with the lower part of the push rod through a third shaft, the other end part of the second connecting rod is rotationally connected with the lower part of the push rod through a fifth shaft, and the other end part of the second connecting rod is rotationally connected with the lower support rod through a sixth shaft. The child stroller has the advantages of simple structure, compact structure after folding and small volume.

Description

A children's stroller

Technical field

The utility model relates to the technical field of children's products, in particular to a children's stroller.

Background technique

Children's strollers can be used when adults take children out. Children's strollers can be used to carry children and carry items, making travel convenient and easy. In the prior art, the frame structure of some children's strollers is complex and consists of many rods. Even after the stroller is folded, the structural volume is still large, which takes up a large space and is inconvenient to carry and store.

Utility model content

The purpose of this utility model is to provide a children's stroller with a simple structure and a smaller structural size after folding in order to address the deficiencies in the prior art.

In order to achieve the above purpose, the technical solution adopted by this utility model is:

A children's stroller includes a stroller frame with an unfolded state and a folded state, a front wheel assembly disposed at the bottom front of the stroller frame, and a rear wheel assembly disposed at the bottom rear of the stroller frame. Wheel assembly, the stroller frame includes a front bracket, a rear bracket, a push rod, a first link and a second link, one of the upper part of the front bracket and the upper part of the rear bracket is telescopic Rod assembly, the telescopic rod assembly includes a lower support rod and an upper support rod slidably disposed on the lower support rod along the length extension direction of the lower support rod, the upper part of the front bracket and the rear bracket The other of the upper parts of the front bracket and the lower part of the push rod is rotationally connected to the first axis, and the other of the upper part of the front bracket and the upper part of the rear bracket is connected to the upper part of the upper support rod. The upper part is rotatably connected through a second shaft, one end of the first connecting rod is rotatably connected to the lower part of the push rod through a third axis, and the other end of the first connecting rod is rotatably connected to the upper part of the upper support rod. The fourth axis is rotatably connected, one end of the second connecting rod is rotatably connected to the lower part of the push rod through a fifth axis, and the other end of the second connecting rod is rotatably connected to the lower support rod through a sixth axis. connect.

Preferably, a first chute is provided on the other of the upper part of the front bracket and the upper part of the rear bracket, and the third shaft is slidably disposed along the extension direction of the first chute. in the first chute.

Further, the first chute is an arc groove with the axis center of the first shaft as the center.

Preferably, a second chute is provided on the other of the upper part of the front bracket and the upper part of the rear bracket, and the fourth shaft can slide along the extension direction of the second chute. arranged in the second chute.

Further, the second slide groove is an arc groove with the axis center of the second shaft as the center.

Preferably, a first joint is provided on the lower part of the push rod, a second joint is provided on the other of the upper part of the front bracket and the upper part of the rear bracket, and the first joint and the The second joint is rotatably connected through the first shaft, and the first connecting rod is provided in the first joint, or in the second joint, or between the first joint and the second joint. between joints.

Preferably, the telescopic rod assembly and the push rod are respectively disposed in the middle of the left and right directions of the stroller frame, and the other one of the front bracket and the rear bracket includes a bracket disposed on the left and right sides respectively. The side struts on both sides and the transverse struts connected between the side struts on the left and right sides, the first connecting rod and the second connecting rod are respectively arranged on the left and right sides of the telescopic rod assembly. side.

Preferably, the first connecting rod is an arc-shaped rod.

Preferably, the front bracket is a telescopic rod assembly, the front wheel assembly is arranged at the lower part of the lower support rod, and the rear wheel assembly is arranged at the lower part of the rear bracket.

Preferably, the baby stroller further includes a seat assembly, the lower part of the seat assembly is rotationally connected to the lower part of the push rod, the upper part of the front bracket or the upper part of the rear bracket.

Due to the application of the above technical solutions, the present utility model has the following advantages compared with the prior art: the children's stroller of the present utility model has fewer rods constituting the stroller frame, making the structure of the stroller frame simple and convenient for children. Processing and manufacturing of carts. Moreover, after folding, the stroller has a compact structure and a small volume, making it easy to carry and store the stroller.

Description of the drawings

Figure 1 is a schematic three-dimensional view of the children's stroller in the unfolded state according to Embodiment 1;

Figure 2 is a schematic front view of the children's stroller in the unfolded state according to Embodiment 1;

Figure 3 is a schematic top view of the children's stroller in the unfolded state according to Embodiment 1;

Figure 4 is a schematic cross-sectional view along line A-A in Figure 3;

Figure 5 is a partially enlarged schematic diagram of position A in Figure 4;

Figure 6 is a schematic front view of the children's stroller in the folding process of Embodiment 1 (the seat assembly is folded and the front bracket is close);

Figure 7 is a schematic top view of the stroller in the folding process of this embodiment 1 (the seat assembly is folded and the front bracket is close);

Figure 8 is a schematic cross-sectional view along line A-A in Figure 7;

Figure 9 is a partially enlarged schematic diagram of position A in Figure 8;

Figure 10 is a schematic front view of the children's stroller in the folding process of Embodiment 1 (the rods forming the stroller frame are rotated at a certain angle);

Figure 11 is a schematic top view of the children's stroller in the folding process of Embodiment 1 (the rods forming the stroller frame are rotated at a certain angle);

Figure 12 is a schematic cross-sectional view along line A-A in Figure 11;

Figure 13 is a partially enlarged schematic diagram of position A in Figure 12;

Figure 14 is a schematic side view of the children's stroller in the folded state according to Embodiment 1;

Figure 15 is a schematic three-dimensional view of the rear bracket of the children's stroller in Embodiment 1;

Figure 16 is a schematic side view of the rear bracket of the stroller of this embodiment 1;

Figure 17 is a schematic three-dimensional view of the push rod of the children's stroller according to Embodiment 1;

Figure 18 is a schematic three-dimensional view of the upper support rod of the children's stroller in Embodiment 1.

Among them: 11. Front support; 111. Lower support; 112. Upper support; 113. Cross beam; 12. Rear support; 121. Side support; 122. Cross support; 123. Second joint; 123a, first Chute; 123b, second chute; 13, push rod; 131, lower push rod; 131a, first joint; 132, upper push rod; 14, first connecting rod; 15, second connecting rod; 2, front Wheel assembly; 3. Rear wheel assembly; 41. First axle; 42. Second axle; 43. Third axle; 44. Fourth axle; 45. Fifth axle; 46. Sixth axle; 5. Seat assembly; 51. Seat; 52. Backrest.

Detailed ways

The technical solution of the present utility model will be further elaborated below with reference to the accompanying drawings and specific embodiments.

In the following description, the directions of "front", "back", "left", "right", "up" and "down" are all according to Figure 4. The left direction in the figure is "front". , the right direction is "back", the upper direction is "up", the lower direction is "down", and the directions perpendicular to the paper surface in the figure are "left" and "right". The definition of the above directions is only for the convenience of describing the present invention and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. limit.

Example 1

As shown in Figures 1 to 14, the children's stroller of the present invention includes a stroller frame with an unfolded state and a folded state, a front wheel assembly 2 provided at the bottom front of the stroller frame, and a front wheel assembly 2 provided at the bottom of the stroller frame. The rear wheel assembly 3 at the bottom of the frame.

The stroller frame includes a front bracket 11, a rear bracket 12, a push rod 13, a first connecting rod 14 and a second connecting rod 15.

The front wheel assembly 2 is arranged at the bottom of the front bracket 11 , and the rear wheel assembly 3 is arranged at the bottom of the rear bracket 12 .

In this embodiment, the front bracket 11 is a telescopic rod assembly, which specifically includes a lower strut 111 and an upper strut 112 . The upper strut 112 is slidably disposed on the lower strut 111 along the length extension direction of the lower strut 111 . When the stroller is in the unfolded state, the lower support rod 111 is located below the upper support rod 112 . In this embodiment, the lower strut 111 has a lumen extending along its length direction, and the upper strut 112 is slidably disposed in the lumen along the length direction of the lumen.

The lower part of the push rod 13 and the upper part of the rear bracket 12 are rotationally connected through a first shaft 41 , and the upper part of the rear bracket 12 and the upper part of the upper support rod 112 are rotationally connected through a second shaft 42 . One end of the first connecting rod 14 is rotatably connected to the lower part of the push rod 13 through a third shaft 43 , and the other end of the first connecting rod 14 is rotatably connected to the upper part of the upper support rod 112 through a fourth shaft 44 . One end of the second connecting rod 15 is rotationally connected to the lower part of the push rod 13 through the fifth shaft 45, and the other end of the second connecting rod 15 is rotationally connected to the upper part of the lower support rod 111 through the sixth axis 46, as shown in Figure 1. As shown in Figure 4, Figure 5, Figure 8, Figure 9, Figure 12, Figure 13, Figure 15 to Figure 18.

In this way, a four-bar linkage is formed between the rear bracket 12, the push rod 13, the first link 14 and the upper support rod 112.

In this embodiment, the front bracket 11 and the push rod 13 are respectively arranged in the middle of the left and right direction of the stroller frame, and the first link 14 and the second link 15 are respectively arranged on the left and right sides of the front bracket 11 . A cross beam 113 extending in the left and right direction is fixedly provided at the lower part of the lower support rod 111, and the front wheel assemblies 2 are respectively provided at the left and right ends of the cross beam 113. The rear bracket 12 includes side struts 121 respectively arranged on the left and right sides and a transverse strut 122 connected between the lower parts of the side struts 121 on the left and right sides. The rear wheel assembly 3 is respectively arranged on the side struts 121 on each side. the lower part.

In this embodiment, as shown in FIG. 17 , the push rod 13 includes a lower push rod 131 and an upper push rod 132 . The upper push rod 132 is slidably disposed on the lower push rod 131 along the length extension direction of the lower push rod 131 . Specifically, the lower push rod 131 has a lumen extending along its length direction, and the upper push rod 132 is slidably disposed in the lumen along the length direction of the lumen. Of course, the lower part of the upper push rod 132 and the upper part of the lower push rod 131 may also be rotationally connected.

The lower part of the lower push rod 131 is provided with a first joint 131a, and the upper part of the side support rod 121 on each side is provided with a second joint 123. The first joint 131a is rotatably connected to the second joints 123 on both sides through the first shaft 41. . One end of the first connecting rod 14 is rotatably connected to the first joint 131 a through the third shaft 43 , and one end of the second connecting rod 15 is rotatably connected to the first joint 131 a through the fifth shaft 45 .

The first connecting rod 14 is disposed in the first joint 131a. The first connecting rod 14 can also be disposed in the second joint 123 on the corresponding side. Alternatively, the first connecting rod 14 is disposed between the first joint 131a and the second joint. It can be between 123 and 123. In this way, the first link 14 cannot be seen from the outside of the stroller, making the appearance of the stroller neat and beautiful. It is preferred that the first connecting rod 14 is an arc-shaped rod with an arc-shaped structure, so that the sizes of the first joint 131a and the second joint 123 can be reduced.

As shown in Figures 4, 5, 8, 9, 12, 13, 15 and 16, the second joint 123 is provided with a first chute 123a, and the third shaft 43 is located in the first chute 123a When the stroller is unfolded and folded, the push rod 13 rotates so that the third shaft 43 slides along the extension direction of the first slide groove 123a. The first chute 123a has an arc-shaped structure with the axis center of the first shaft 41 as the center of the circle.

As shown in Figures 4, 5, 8, 9, 12, 13, 15 and 16, the second joint 123 is provided with a second chute 123b, and the fourth shaft 44 is located in the second chute 123b. When the stroller is unfolded and folded, the push rod 13 rotates to drive the first link 14 to rotate, causing the fourth shaft 44 to slide along the extension direction of the second slide groove 123b. The second chute 123b has an arc-shaped structure with the axis center of the second shaft 42 as the center of the circle.

By arranging the first chute 123a and the second chute 123b respectively on the second joint 123, the push rod 13 and the first link 14 can form an avoidance mechanism when the push rod 13 and the first link 14 rotate during the unfolding and folding operations of the child stroller, thereby not affecting the children. The unfolding and folding operations of the stroller are arranged in this way to make the structure of the stroller compact and reduce the volume of the stroller. The arrangement of the first slide groove 123a and the second slide groove 123b can also limit and guide the movement of the push rod 13 and the first connecting rod 14.

The stroller also includes a seat assembly 5. The seat assembly 5 includes a seat 51 and a backrest 52. The lower part of the backrest 52 is rotatably connected to the rear of the seat 51. The seat assembly 5 is rotatably mounted on the stroller frame so that the child can push the stroller. When the stroller is folded, the backrest 52 can rotate relative to the seat 51 to fold the seat assembly 5. The entire seat assembly 5 can rotate relative to the stroller frame and come close to the stroller frame, so that the stroller can be folded with the seat assembly 5. This makes the folding operation of the stroller easy.

The lower part of the seat assembly 5 is rotatably connected to the lower part of the push rod 13, the upper part of the front bracket 11 or the upper part of the rear bracket 12. In this embodiment, the lower part of the seat 51 is fixedly provided with a connecting seat 53. The connecting seat 53, the first joint 131a and the second joint 123 are coaxially connected through the first shaft 41, which makes the structure of the child stroller simple.

When the stroller is in an unfolded state, the upper support rod 112 extends upward mostly to the outside of the lower support rod 111 , and the upper push rod 132 extends upward mostly to the outside of the lower push rod 131 . The seat assembly 5 is in an unfolded state, as shown in Figures 1 to 4.

When the stroller is folded, the backrest 52 is rotated forward to be close to the seat 51, and the entire seat assembly 5 is rotated downward around the first axis 41 to be close to the front bracket 11, as shown in Figures 6 to 9. After the upper push rod 132 slides downward and comes close to the lower push rod 131 , the push rod 13 as a whole is rotated downward around the first axis 41 and comes close to the rear bracket 12 , so that the third axis 43 extends along the first slide groove 123 a The first link 14 rotates and the fourth shaft 44 slides upward along the extending direction of the second chute 123b, thereby driving the front bracket 11 to rotate backward and move closer to the rear bracket 12. When the push rod 13 rotates downward, the fifth shaft 45 moves upward, thereby pulling the lower support rod 111 to slide upward relative to the upper support rod 112 through the second connecting rod 15, so that the upper support rod 112 and the lower support rod 111 come closer. The folding process is shown in Figures 10 to 13. Until the rods that make up the stroller frame are closely brought together, the seat assembly 5 is close to the stroller frame, and finally folded as shown in Figure 14. When the stroller is folded, it has a compact structure and small volume, making it easy to carry and store the stroller.

Example 2

In this embodiment, the structures of the front bracket 11 and the rear bracket 12 are exchanged, and the rest are the same as those in Embodiment 1. That is, the rear bracket 12 is a telescopic rod assembly, and the rear bracket 12 includes a lower strut 111 and an upper strut 112 . The upper strut 112 is slidably disposed on the lower strut 111 along the length extension direction of the lower strut 111 . The front bracket 11 includes side struts 121 respectively provided on the left and right sides and a transverse strut 122 connected between the lower portions of the side struts 121 on the left and right sides.

The above embodiments are only for illustrating the technical concepts and characteristics of the present invention. Their purpose is to enable those familiar with the technology to understand the contents of the present invention and implement them accordingly. They cannot limit the scope of protection of the present invention. All equivalent changes or modifications based on the spirit and essence of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. A children's stroller, comprising a stroller frame having an unfolded state and a folded state, a front wheel assembly disposed at the bottom front of the stroller frame, and a bottom rear wheel assembly disposed at the bottom rear of the stroller frame. The rear wheel assembly is characterized in that: the stroller frame includes a front bracket, a rear bracket, a push rod, a first connecting rod and a second connecting rod, and the upper part of the front bracket and the upper part of the rear bracket are both One of them is a telescopic rod assembly. The telescopic rod assembly includes a lower strut and an upper strut slidably disposed on the lower strut along the length extension direction of the lower strut. The front bracket is The other of the upper part and the upper part of the rear bracket is rotationally connected to the lower part of the push rod through a first shaft, and the other one of the upper part of the front bracket and the upper part of the rear bracket is connected to the lower part of the push rod through a first shaft. The upper part of the upper support rod is rotatably connected to the second shaft, one end of the first connecting rod is rotatably connected to the lower part of the push rod through a third axis, and the other end of the first connecting rod is rotatably connected to the push rod. The upper part of the upper support rod is rotationally connected to the fourth axis, one end of the second connecting rod is rotationally connected to the lower part of the push rod through the fifth axis, and the other end of the second connecting rod is connected to the lower support rod. The rods are connected via a sixth axis rotation. 2. The children's stroller according to claim 1, characterized in that: a first chute is provided on the other one of the upper part of the front bracket and the upper part of the rear bracket, and the third axis It is slidably disposed in the first chute along the extension direction of the first chute. 3. The children's stroller according to claim 2, wherein the first chute is an arc groove with the axis center of the first shaft as the center of the circle. 4. The children's stroller according to claim 1, characterized in that: a second chute is provided on the other one of the upper part of the front bracket and the upper part of the rear bracket, and the fourth The shaft is slidably disposed in the second slide groove along the extension direction of the second slide groove. 5. The children's stroller according to claim 4, wherein the second chute is an arc groove with the axis center of the second shaft as the center of the circle. 6. The children's stroller according to claim 1, characterized in that: the lower part of the push rod is provided with a first joint, and the other one of the upper part of the front bracket and the upper part of the rear bracket is A second joint is provided, the first joint and the second joint are rotationally connected through the first shaft, and the first connecting rod is provided in the first joint, or is provided in the second joint , or provided between the first connector and the second connector. 7. The children's stroller according to claim 1, characterized in that: the telescopic rod assembly and the push rod are respectively arranged in the middle of the left and right directions of the stroller frame, and the front bracket and the The other of the two rear supports includes side struts respectively provided on the left and right sides and a transverse strut connected between the side struts on the left and right sides. The first connecting rod and the second connecting rod The connecting rods are respectively arranged on the left and right sides of the telescopic rod assembly. 8. The stroller according to claim 1, wherein the first connecting rod is an arc-shaped rod. 9. The children's stroller according to claim 1, characterized in that: the front bracket is a telescopic rod assembly, the front wheel assembly is provided at the lower part of the lower support rod, and the rear wheel assembly is provided at the lower part of the lower support rod. The lower part of the rear bracket. 10. The stroller according to claim 1, characterized in that: the stroller further includes a seat assembly, the lower part of the seat assembly and the lower part of the push rod, the upper part of the front bracket or the The upper part of the rear bracket is connected by rotation.