CN220363381U - Child cart - Google Patents

Abstract

The utility model discloses a children handcart, which comprises a frame with an unfolding state and a folding state, and a wheel assembly arranged at the bottom of the frame, wherein the frame at least comprises a foldable bottom bracket assembly, a push rod assembly and a handrail assembly, the wheel assembly is arranged at the bottom of the bottom bracket assembly, the push rod assembly comprises an upper push rod frame and a lower push rod frame, the handrail assembly comprises a connecting frame and a handrail frame, the frame is folded in the folding state, the upper push rod frame, the connecting frame, the handrail frame, the lower push rod frame and the bottom bracket assembly are mutually folded, and the frame also comprises a linkage mechanism, wherein the linkage mechanism is linked in the process of relatively rotating and folding the upper push rod frame and the lower push rod frame so that the handrail frame and the connecting frame are mutually folded. The folding principle of the child stroller is simple, and the folding operation is easy.

Description

Child cart

Technical Field

The utility model relates to the field of children products, in particular to a child trolley.

Background

Most of the handrail components of the baby stroller often cannot be folded together with the frame, the handrail components are usually detached from the frame before the frame is folded, and after the frame is folded, the handrail components are placed together with the folded frame, so that the folding operation of the stroller becomes complicated, and great inconvenience is brought to a user.

Disclosure of Invention

The utility model aims to provide a novel child stroller.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the child stroller comprises a frame with an unfolding state and a folding state, and a wheel assembly arranged at the bottom of the frame, wherein the frame at least comprises a foldable bottom bracket assembly, a push rod assembly and a handrail assembly, the wheel assembly is arranged at the bottom of the bottom bracket assembly, the push rod assembly comprises an upper push rod frame and a lower push rod frame which extend along the up-down direction respectively when the frame is in the unfolding state, the lower part of the lower push rod frame is rotationally connected to the bottom bracket assembly, and the upper part of the lower push rod frame is rotationally connected with the lower part of the upper push rod frame;

the handrail component comprises a connecting frame and a handrail frame, wherein the connecting frame and the handrail frame respectively extend along the front-back direction when the frame is in a unfolding state, the front part of the connecting frame is rotationally connected to the bottom bracket component, the rear part of the connecting frame is rotationally connected to the lower push rod frame, the front part of the handrail frame is rotationally connected to the connecting frame, the rear part of the handrail frame is rotationally connected with a sliding piece, and the sliding piece can be slidingly arranged on the lower push rod frame along the length extending direction of the lower push rod frame;

the frame is in a folding state, the bottom bracket assembly is folded, the upper push rod frame, the connecting frame, the handrail frame, the lower push rod frame and the bottom bracket assembly are mutually folded, and the frame further comprises a linkage mechanism, wherein the linkage mechanism is configured to be linked in the process of relatively rotating and folding the upper push rod frame and the lower push rod frame so that the handrail frame and the connecting frame are mutually folded.

Preferably, the linkage mechanism comprises a linkage frame, one end part of the linkage frame is rotationally connected to the upper push rod frame around a first rotation center line, the other end part of the linkage frame is rotationally connected to the sliding part, the lower part of the upper push rod frame is rotationally connected with the upper part of the lower push rod frame around a second rotation center line, and the first rotation center line is positioned below the second rotation center line along the length extending direction of the upper push rod frame.

Preferably, the rear part of the connecting frame is rotatably connected to the lower push rod frame around a third rotation center line, and the sliding piece is positioned below the third rotation center line on the lower push rod frame.

Further, in the process of converting the vehicle frame from the unfolded state to the folded state, the sliding piece slides upwards along the push rod frame, and the front part of the armrest frame rotates downwards towards the connecting frame to be folded.

Further, in the unfolded state, the connecting frame extends obliquely upwards from front to back, and the armrest frame extends obliquely downwards from front to back.

Preferably, the connecting frame is provided with two connecting rods which are respectively arranged at the left side and the right side and extend along the front-back direction, and the two connecting rods are positioned at the outermost side on the frame along the left-right direction.

Preferably, the bottom bracket assembly at least comprises a front support frame and a rear support frame, the frame is in a unfolded state, the front support frame and the rear support frame respectively extend along the front direction, the front part of the connecting frame is rotationally connected with the front part of the front support frame, the rear part of the front support frame is rotationally connected with the front part of the rear support frame, and the rear part of the rear support frame is rotationally connected with the lower part of the push rod frame.

Further, the bottom bracket assembly further comprises a front bracket and a rear bracket, the front bracket extends obliquely from bottom to top and obliquely from bottom to top, the rear bracket extends obliquely from bottom to top, the rear bracket comprises an upper bracket and a lower bracket which are connected in a sliding manner along the up-down direction, the front bracket is fixedly arranged on the upper portion of the front bracket, the front portion of the front bracket or the upper portion of the front bracket is rotationally connected with the upper portion of the upper bracket, and the lower portion of the lower push rod bracket or the rear portion of the rear bracket is rotationally connected to the lower bracket.

Further, the front support frame, the upper part of the upper support frame and the lower part of the connecting frame are connected together in a rotating way around a rotating center line, and the lower part of the lower push rod frame, the rear part of the rear support frame and the lower support frame are connected together in a rotating way around another rotating center line.

Further preferably, the upper bracket at least comprises a cross bar extending in a left-right direction, the front support frame, the connecting frame and the upper part of the upper bracket are rotationally connected together around the axis of the cross bar, the frame is in a unfolded state, and the cross bar, the front support frame and the rear support frame form a seat for children to sit and stand together.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the baby stroller is provided with the linkage mechanism, and in the process of rotating and folding the upper push rod frame relative to the lower push rod frame, the linkage mechanism can be linked to enable the handrail component to be folded relative to the push rod component, so that folding operation is simplified, and a user can fold the whole stroller frame simply by overturning forwards and pressing the upper push rod frame downwards.

Drawings

FIG. 1 is a schematic perspective view of a stroller according to an embodiment of the present utility model;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic view of the longitudinal section of FIG. 1;

FIG. 4 is a schematic front view of FIG. 1;

FIG. 5 is a schematic top view of FIG. 1;

FIG. 6 is a schematic perspective view of the cart of FIG. 1 during a folding process;

FIG. 7 is a schematic view in longitudinal section of FIG. 6;

FIG. 8 is a schematic perspective view of the cart of FIG. 1 in a collapsed configuration;

FIG. 9 is a schematic side view of FIG. 8;

FIG. 10 is a schematic front view of FIG. 8;

wherein: 100. a frame; 200. a wheel assembly; 201. a front wheel assembly; 202. a rear wheel assembly;

1. a bottom bracket assembly; 11. a front support; 111. a front support bar; 12. a rear support; 121. a connecting seat; 121a, a first connection portion; 121b, a second connection portion; 122. a rear support bar; 13. a front bracket; 131. a front strut; 14. a rear bracket; 141. an upper bracket; 141a, a cross bar; 141b, upper struts; 142. a lower bracket; 142a, lower struts; 142b, connecting rods; 2. a push rod assembly; 21. a push rod frame is upwards pushed; 211. an upper push rod; 211a, lower connectors; 212. pushing the handle bar; 22. pushing down the rod frame; 221. a push rod is downwards pushed; 3. a handrail assembly; 31. a connecting frame; 311. a connecting rod; 32. a handrail frame; 321. a grab rail; 322. a slider; 4. a linkage mechanism; 41. a linkage frame; 411. a linkage rod;

x1, a first rotation center line; x2, a second rotation center line; x3, a third rotation center line; x4, a fourth rotation center line; x5, a fifth rotation center line; x6, sixth rotation center line.

Detailed Description

The following description of the directions related to up, down, left, right, front, rear, inner, outer, etc. are defined with reference to the directions observed by a pusher pushing the stroller in the unfolded state, and are only used for clearly explaining the relative positional relationship of the respective rods and members on the stroller.

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

Referring to fig. 1, a stroller comprises a frame 100 having an unfolded state and a folded state, and a wheel assembly 200 provided at the bottom of the frame 100, wherein the frame 100 comprises a foldable bottom bracket assembly 1, a push rod assembly 2 and a handrail assembly 3, the wheel assembly 200 is provided at the bottom of the bottom bracket assembly 1, the push rod assembly 2 comprises an upper push rod frame 21 and a lower push rod frame 22 each extending in an up-down direction when the frame 100 is in the unfolded state, the lower part of the lower push rod frame 22 is rotatably connected to the bottom bracket assembly 1, and the upper part of the lower push rod frame 22 is rotatably connected to the lower part of the upper push rod frame 21.

The armrest assembly 3 includes a link frame 31 and an armrest frame 32 each extending in the front-rear direction in the unfolded state of the vehicle frame 100, the front portion of the link frame 31 is rotatably connected to the bottom bracket assembly 1, the rear portion of the link frame 31 is rotatably connected to the push-down rod frame 22, the front portion of the armrest frame 32 is rotatably connected to the link frame 31, the rear portion of the armrest frame 32 is rotatably connected to a slider 322, and the slider 322 is slidably provided on the push-down rod frame 22 in the length extending direction of the push-down rod frame 22.

When the frame 100 is in a folded state, the bottom bracket assembly 1 is folded, the upper push rod frame 21, the connecting frame 31, the armrest frame 32, the lower push rod frame 22 and the bottom bracket assembly 1 are mutually folded, the frame 100 further comprises a linkage mechanism 4, and the linkage mechanism 4 can be linked in the process of relatively rotating and folding the upper push rod frame 21 and the lower push rod frame 22 so that the armrest frame 32 and the connecting frame 31 are mutually folded.

In this embodiment, the linkage mechanism 4 includes a linkage frame 41, one end of the linkage frame 41 is rotatably connected to the upper push rod frame 21 around a first rotation center line X1, the other end of the linkage frame 41 is rotatably connected to the slider 322, the lower portion of the upper push rod frame 21 is rotatably connected to the upper portion of the lower push rod frame 22 around a second rotation center line X2, and the first rotation center line X1 is located below the second rotation center line X2 along the length extending direction of the upper push rod frame 21.

Referring to fig. 1 to 3, the upper push rod rest 21 includes two upper push rods 211 provided separately on the left and right sides and extending in the up-down direction, and a push rod 212 extending in the left and right direction and connected between the upper end portions of the two upper push rods 211, and in this embodiment, the upper push rod rest 21 is integrally provided in the form of a U-shaped rod with a downward opening in the unfolded state.

In this embodiment, the lower putter frame 22 includes two lower pushers 221 disposed on the left and right sides and extending in the up-down direction, the linkage frame 41 includes two linkage rods 411 disposed on the left and right sides and extending in the up-down direction, and a lower connector 211a extending downward along the length direction of the upper pushrod 211 is further disposed at the lower end of the upper pushrod 211. In the unfolded state, the upper portion of lower push rod 221 is rotatably connected to the lower portion of upper push rod 211 about second rotation center line X2, and the upper end portion of link rod 411 is rotatably connected to lower joint 211a about first rotation center line X1, on each of the left and right sides of frame 100. The first rotation center line X1 and the second rotation center line X2 are parallel to each other and each extend horizontally in the left-right direction.

Referring to fig. 1, the rear portion of the link 31 is rotatably coupled to the lower putter frame 22 about a third rotation center line X3, and the slider 322 is positioned below the third rotation center line X3 on the lower putter frame 22. Specifically, the handrail frame 32 includes two handrail rods 321 that are disposed on the left and right sides and extend in the front-rear direction, in this embodiment, front ends of the two handrail rods 321 are bent in opposite directions along the left-right direction and are connected together, a sliding member 322 is rotatably connected to a rear end of each handrail rod 321, the sliding member 322 is specifically a sliding sleeve, and the two sliding sleeves are respectively slidably sleeved on the two push rods 221. The link 31 has two link bars 311 provided on the left and right sides and extending in the front-rear direction, and the two link bars 311 are located outermost in the left-right direction on the frame 100. The rear end of the connecting rod 311 is rotatably connected to the middle of the push down lever 221 about the third rotation center line X3, the middle of the connecting rod 311 is rotatably connected to the grab rail 321 about the fourth rotation center line X4, and the rear end of the grab rail 321, the slider 322, and the lower end of the link lever 411 are rotatably connected together about the fifth rotation center line X5. The third rotation center line X3, the fourth rotation center line X4, and the fifth rotation center line X5 are parallel to each other and all extend horizontally in the left-right direction, and in the length extending direction of the push down lever 221, the third rotation center line X3 is located above the fourth rotation center line X4, and simultaneously, the third rotation center line X3 and the fourth rotation center line X4 are all located below the first rotation center line X1.

The bottom bracket assembly 1 includes a front support frame 11 and a rear support frame 12, the frame 100 is in a unfolded state, the front support frame 11 and the rear support frame 12 extend in a front direction, a front portion of the connection frame 31 is rotatably connected with a front portion of the front support frame 11, a rear portion of the front support frame 11 is rotatably connected with a front portion of the rear support frame 12, and a rear portion of the rear support frame 12 is rotatably connected with a lower portion of the push-down lever frame 22.

The bottom bracket assembly 1 further comprises a front bracket 13 and a rear bracket 14, wherein the front bracket 13 extends obliquely backwards from bottom to top and the rear bracket 14 extends obliquely forwards from bottom to top when the frame 100 is in a unfolded state, the rear bracket 14 comprises an upper bracket 141 and a lower bracket 142 which are connected in a sliding manner along the up-down direction, the front bracket 111 is fixedly arranged on the upper part of the front bracket 13, the front part of the front bracket 11 or the upper part of the front bracket 13 is rotationally connected with the upper part of the upper bracket 141, and the lower part of the lower push rod bracket 22 or the rear part of the rear bracket 12 is rotationally connected with the lower bracket 142. In the present embodiment, the front support frame 11, the upper portion of the upper bracket 141, and the lower portion of the link frame 31 are rotatably connected together about one rotation center line, and the lower portion of the push-down lever frame 22, the rear portion of the rear support frame 12, and the lower bracket 142 are rotatably connected together about the other rotation center line.

Referring to fig. 1 to 5, the front support 11 includes two front support rods 111 respectively disposed at left and right sides and extending in a front-rear direction, the front support 13 includes two front support rods 131 respectively disposed at left and right sides and extending in an up-down direction, and the two front support rods 11 are respectively fixed to upper portions of the two front support rods 311; the rear support frame 12 includes two connection seats 121 disposed on the left and right sides, each connection seat 121 includes a first connection portion 121a extending in the front-rear direction and a second connection portion 121b extending from the rear end portion of the first connection portion 121a in a downward bending manner, and is disposed on each of the left and right sides of the frame 100, and the rear portion of the front support rod 111 is rotatably connected to the front end portion of the first connection portion 121a about a sixth rotation center line X6; the upper bracket 141 has a cross bar 141a extending in the left-right direction and an upper strut 141b extending in the up-down direction, the upper strut 141b includes two upper struts 141b disposed in parallel on the left and right sides, and upper ends of the two upper struts 141b are fixedly connected to left and right portions of the cross bar 141a, respectively; the lower bracket 142 includes two lower struts 142a disposed on the left and right sides and extending in the up-down direction, the lower struts 142a are provided with lumens extending in the longitudinal direction thereof, and two upper struts 141b are inserted in the lumens of the two lower struts 142a in a sliding fit manner, respectively. The rear bracket 14 further has a connection rod 142b extending in the left-right direction, upper portions of the two lower struts 142a are fixedly connected to left and right side portions of the connection rod 142b, respectively, and left and right ends of the connection rod 142b extend outward in the left-right direction and protrude out of the lower bracket 142.

The cross bar 141a is rotatably connected between the two front support bars 111 around the own axis line at each of the left and right sides of the frame 100, and the front support bars 111 are rotatably connected with the front end portions of the connection bars 311 around the axis line of the cross bar 141a, so that the front support frames 111, the connection frames 31, and the upper portions of the upper brackets 141 are rotatably connected together around the axis line of the cross bar 141 a. The connection rod 142b is rotatably connected between the lower ends of the second connection parts 121b at both sides around the own axis, and the lower end of the lower push rod 221 and the lower end of the second connection part 121b are rotatably connected together around the axis of the connection rod 142b, so that the rear support frame 12, the lower part of the lower push rod frame 22, and the lower support frame 142 are rotatably connected together around the axis of the connection rod 142 b.

The rear supporting frame 12 is further provided with a rear supporting rod 122, and in the unfolded state, the rear supporting rod 122 is in a U shape with a forward opening, and the left and right end parts of the rear supporting rod 122, which are positioned at the front side, are fixedly connected with the rear parts of the first connecting parts 121a at the same side respectively.

The wheel assembly 200 includes a front wheel assembly 201 and a rear wheel assembly 202, wherein the front wheel assembly 201 and the rear wheel assembly each include two groups disposed on the left and right sides, the two groups of front wheel assemblies 201 are disposed at the bottoms of the two front struts 131, and the two groups of rear wheel assemblies 202 are disposed at the bottoms of the two lower struts 142 a.

In the unfolded state of the frame 100, as shown in fig. 3 to 5, the upper push rod frame 21 and the lower push rod frame 22 extend along the same length direction, the upper bracket 141 and the lower bracket 142 are unfolded relatively along the length direction, the connecting frame 31 extends obliquely upward from front to back, the armrest frame 32 extends obliquely downward from front to back, the front bracket 13 and the connecting frame 31 extend in a smooth arc line from front to back in a bending manner when viewed from the side of the frame 100, the front support rod 111 and the first connecting part 121a extend along the same length direction, and the cross rod 141a forms a seat for sitting and standing a child together with the front support frame 11 and the rear support frame 12. A seat plate or a flexible cloth cover may be provided above the seat, and a backrest may be provided on the push-down frame 22, on which the child sits and leans backward, and the armrest frame 32 is positioned in front of the child's body and is held by both hands of the child to keep the body balanced, while the armrest frame 32 prevents the child from tilting forward, in which state the caretaker pushes the push rod 212 forward to drive the child's cart forward.

In the process of converting the vehicle frame 100 from the unfolded state to the folded state, as shown in fig. 6 and 7, the upper push rod frame 21 is turned forward around the second rotation center line X2 while the upper push rod frame 21 is lowered, so that the upper push rod frame 21 and the lower push rod frame 22 are folded in opposite directions and folded together to the rear of the rear bracket 14; in this process, the upper push rod frame 21 drives the linkage frame 41 to move upwards along the length direction of the lower push rod frame 22, the lower part of the linkage frame 41 drives the sliding piece 322 to slide upwards along the lower push rod 211, and the sliding piece 322 drives the front part of the handrail frame 32 to rotate downwards towards the connecting frame 31 for folding; the lower push rod frame 22 drives the connecting frame 31 and the armrest frame 32 to turn backwards together in the downward movement process, the lower part of the lower push rod frame 22 drives the lower support 142 to slide along the length direction relative to the upper support 141 for a short distance, the lower support 142 drives the rear support 12 to rotate backwards around the axial lead of the connecting rod 142b in the sliding process relative to the upper support 141, and the rear support 12 drives the front support 13 to fold relative to the rear support 14 through the front support 11.

In the folded state of the vehicle frame 100, as shown in fig. 8 to 10, the front bracket 13, the rear bracket 14, the lower push rod frame 22, the armrest frame 32, and the upper push rod frame 21 are folded together sequentially from front to back, the link frame 31 is folded outside the lower push rod frame 22 in the left-right direction, and the rear wheel assembly 202 is folded in the middle of the front wheel assembly 201 and supported on the ground together with the lower joint 211a of the upper push rod 211.

In summary, the folding principle of the stroller of the embodiment is simple, and the folding of the whole stroller can be realized only by overturning forwards and pressing down the push rod frame 21, so that great convenience is provided for a user, and the user experience is improved.

The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims (10)

1. The utility model provides a children's shallow, includes the frame that has expansion state and folding state, locates the wheel subassembly of frame bottom, its characterized in that: the vehicle frame at least comprises a foldable bottom bracket assembly, a push rod assembly and a handrail assembly, the wheel assembly is arranged at the bottom of the bottom bracket assembly, the push rod assembly comprises an upper push rod frame and a lower push rod frame which extend along the up-down direction respectively when the vehicle frame is in an unfolding state, the lower part of the lower push rod frame is rotationally connected to the bottom bracket assembly, and the upper part of the lower push rod frame is rotationally connected with the lower part of the upper push rod frame;

the handrail component comprises a connecting frame and a handrail frame, wherein the connecting frame and the handrail frame respectively extend along the front-back direction when the frame is in a unfolding state, the front part of the connecting frame is rotationally connected to the bottom bracket component, the rear part of the connecting frame is rotationally connected to the lower push rod frame, the front part of the handrail frame is rotationally connected to the connecting frame, the rear part of the handrail frame is rotationally connected with a sliding piece, and the sliding piece can be slidingly arranged on the lower push rod frame along the length extending direction of the lower push rod frame;

the frame is in a folding state, the bottom bracket assembly is folded, the upper push rod frame, the connecting frame, the handrail frame, the lower push rod frame and the bottom bracket assembly are mutually folded, and the frame further comprises a linkage mechanism, wherein the linkage mechanism is configured to be linked in the process of relatively rotating and folding the upper push rod frame and the lower push rod frame so that the handrail frame and the connecting frame are mutually folded.

2. The stroller of claim 1, wherein: the linkage mechanism comprises a linkage frame, one end part of the linkage frame is rotationally connected to the upper push rod frame around a first rotation center line, the other end part of the linkage frame is rotationally connected to the sliding part, the lower part of the upper push rod frame is rotationally connected with the upper part of the lower push rod frame around a second rotation center line, and the first rotation center line is positioned below the second rotation center line along the length extending direction of the upper push rod frame.

3. The stroller of claim 1, wherein: the rear part of the connecting frame is rotationally connected to the lower push rod frame around a third rotation center line, and the sliding piece is positioned below the third rotation center line on the lower push rod frame.

4. The stroller of claim 1, wherein: in the process of converting the frame from the unfolding state to the folding state, the sliding piece slides upwards along the lower push rod frame, and the front part of the armrest frame rotates downwards towards the connecting frame to be folded.

5. The stroller of claim 4, wherein: the frame is in a unfolding state, the connecting frame extends obliquely upwards from front to back, and the armrest frame extends obliquely downwards from front to back.

6. The stroller of claim 1, wherein: the connecting frame is provided with two connecting rods which are respectively arranged at the left side and the right side and extend along the front-back direction, and the two connecting rods are positioned at the outermost side on the frame along the left-right direction.

7. A stroller according to any one of claims 1 to 6, wherein: the bottom bracket assembly at least comprises a front supporting frame and a rear supporting frame, the frame is in a unfolding state, the front supporting frame and the rear supporting frame extend along the front direction respectively, the front part of the connecting frame is rotationally connected with the front part of the front supporting frame, the rear part of the front supporting frame is rotationally connected with the front part of the rear supporting frame, and the rear part of the rear supporting frame is rotationally connected with the lower part of the lower push rod frame.

8. The stroller of claim 7, wherein: the bottom bracket assembly further comprises a front bracket and a rear bracket, wherein the frame is in a unfolding state, the front bracket obliquely extends from bottom to top and the rear bracket obliquely extends from bottom to top, the rear bracket comprises an upper bracket and a lower bracket which are connected in a sliding mode along the upper and lower directions, the front bracket is fixedly arranged on the upper portion of the front bracket, the front portion of the front bracket or the upper portion of the front bracket is rotationally connected with the upper portion of the upper bracket, and the lower portion of the lower push rod bracket or the rear portion of the rear bracket is rotationally connected to the lower bracket.

9. The stroller of claim 8, wherein: the front support frame, the upper part of the upper support frame and the lower part of the connecting frame are connected in a rotating way around a rotating central line, and the lower part of the lower push rod frame, the rear part of the rear support frame and the lower support frame are connected in a rotating way around another rotating central line.

10. The stroller of claim 9, wherein: the upper bracket at least comprises a cross rod extending along the left-right direction, the front support frame, the connecting frame and the upper part of the upper bracket are rotationally connected together around the axial lead of the cross rod, the frame is in a unfolding state, and the cross rod, the front support frame and the rear support frame jointly form a seat for children to sit and stand.