CN110001733B - Baby carriage - Google Patents

Abstract

The invention discloses a baby stroller, a frame of which comprises: the bottom is equipped with front wheel assembly's fore-stock, bottom are equipped with rear wheel assembly's rear bracket, push rod frame, seat frame and link, the upper portion of fore-stock with the upper portion of rear bracket rotationally is connected, the seat frame extends along fore-and-aft direction, the front portion of seat frame rotationally connects on the fore-stock, one end of link rotationally connects the rear portion of seat frame, just the other end of link rotationally connects on the rear bracket, the push rod frame with the rear bracket rotationally connects, just the lower part of push rod frame can enough relative rotation can be followed the length extending direction of link slidingly with the link is connected. The frame rod has the advantages of small quantity and simple structure, and can be opened or closed gradually by rotating the rods on the frame relatively only by overturning the push rod frame when the frame is unfolded and folded, so that the operation is very convenient.

Description

baby cart

Technical Field

The invention relates to a baby stroller.

Background technique

Baby strollers play an important role in helping users carry infants and young children in their daily lives, and have become one of the indispensable children's products for infants and young children during their growth. In the prior art, baby strollers have various structures, different folding principles of the frames, and different shapes and volumes after folding.

Summary of the invention

The purpose of the present invention is to provide a baby stroller with a new structure and folding principle.

To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a baby stroller, including a frame with an unfolded state and a folded state, a front wheel assembly and a rear wheel assembly arranged at the bottom of the frame, and a locking mechanism for locking the frame in the unfolded state, the frame including: a front bracket with the front wheel assembly at the bottom, a rear bracket with the rear wheel assembly at the bottom, a push rod frame, a seat frame and a connecting frame, the upper part of the front bracket is rotatably connected to the upper part of the rear bracket, the seat frame extends in the front and rear directions, the front part of the seat frame is rotatably connected to the front bracket, one end of the connecting frame is rotatably connected to the rear part of the seat frame, and the other end of the connecting frame is rotatably connected to the rear bracket, the push rod frame is rotatably connected to the rear bracket, and the lower part of the push rod frame can be relatively rotated and can be slidably connected to the connecting frame along the length extension direction of the connecting frame.

Preferably, a sliding member is rotatably connected to the lower portion of the push rod frame, and the sliding member is slidably disposed on the connecting frame along the length extension direction of the connecting frame.

Furthermore, the connecting frame is rotatably connected to the rear bracket via a first axis, the connecting frame is connected to the seat frame via a second axis, and the sliding member is located between the first axis and the second axis on the connecting frame.

Furthermore, the push rod frame is rotatably connected to the rear bracket via a third shaft, and the third shaft is located above the first shaft on the rear bracket.

As a specific implementation, the connecting frame has a connecting rod extending in the front-to-back direction, and the sliding member is a sliding sleeve slidably mounted on the connecting rod.

Preferably, the front bracket includes two groups of front support rods respectively arranged on the left and right sides, the rear bracket includes two groups of rear support rods respectively arranged on the left and right sides, and the seat frame, the connecting frame and the push rod frame are all arranged between the front support rods on both sides and the rear support rods on both sides along the left and right directions.

Furthermore, the front support rod includes a front support rod body extending gradually upward from front to rear and a front connecting rod body extending backward from the upper part of the front support rod body; the rear support rod includes a rear support rod body extending gradually upward from rear to front and a rear connecting rod body extending forward from the upper part of the rear support rod body; the rear part of the front connecting rod body is rotatably connected to the front part of the rear connecting rod body.

Furthermore, when the vehicle frame is in the unfolded state, the front connecting rod body and the rear connecting rod body both extend in the horizontal direction to jointly form a side armrest.

As a specific implementation, the front wheel assembly is disposed at the lower portion of each group of the front support rods, the rear wheel assembly is disposed at the lower portion of each group of the rear support rods, and the spacing between the two groups of the front wheel assemblies is greater than the spacing between the two groups of the rear wheel assemblies.

Preferably, when the frame is in the unfolded state, the seat frame and the connecting frame are supported between the front bracket and the rear bracket in the front-to-back direction; when the frame is in the folded state, the push rod frame is flipped backward and folded at the rear side of the rear bracket, and the seat frame and the connecting frame are both flipped to extend in the up-down direction and folded between the front bracket and the rear bracket.

The above and following descriptions of up and down, front and back, left and right, etc. are all defined with reference to the directions observed when the stroller is in the unfolded state and the infant is sitting in the stroller.

Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: the frame of the baby stroller of the present invention only includes a front bracket, a rear bracket, a push rod frame, a seat frame and a connecting frame, the number of rods is small, the structure is simple, and when the frame is unfolded or folded, it only needs to flip the push rod frame, so that the rods on the frame can be relatively rotated and gradually opened or folded, which is very convenient to operate. The frame structure after folding is also very compact and occupies less space.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a perspective view of the baby stroller of the present invention in an unfolded state;

Figure 2 is a side view of the baby stroller of the present invention in an unfolded state;

FIG3 is a rear view of the baby stroller of the present invention in an unfolded state;

FIG4 is a side view of the baby stroller of the present invention in a semi-folded state;

Figure 5 is a side view of the baby stroller of the present invention in a folded state;

Among them: 1. front bracket; 11. front support rod; 11a. front support rod body; 11b. front connecting rod body; 12. front cross bar; 2. rear bracket; 21. rear support rod; 21a. rear support rod body; 21b. rear connecting rod body; 22. rear cross bar; 3. push rod frame; 31. push rod; 32. push handle; 4. seat frame; 41. seat rod; 5. connecting frame; 51. connecting rod; 6. sliding member (sleeve); 10. front wheel assembly; 20. rear wheel assembly; 101. first axis; 102. second axis; 103. third axis; 104. fourth axis; 105. fifth axis.

Detailed ways

The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

1 to 5 , the baby stroller includes a frame having an unfolded state and a folded state, a front wheel assembly 10 and a rear wheel assembly 20 disposed at the bottom of the frame, and a locking mechanism for locking the frame in the unfolded state.

The frame includes: a front bracket 1 with a front wheel assembly 10 at the bottom, a rear bracket 2 with a rear wheel assembly 20 at the bottom, a push rod bracket 3, a seat bracket 4 and a connecting bracket 5, the upper part of the front bracket 1 is rotatably connected to the upper part of the rear bracket 2, the seat bracket 4 extends in the front-to-back direction, the front part of the seat bracket 4 is rotatably connected to the front bracket 1, one end of the connecting bracket 5 is rotatably connected to the rear part of the seat bracket 4, and the other end of the connecting bracket 5 is rotatably connected to the rear bracket 2, the push rod bracket 3 is rotatably connected to the rear bracket 2, and the lower part of the push rod bracket 3 can be relatively rotated and relatively slidably connected to the connecting bracket 5 along the length extension direction of the connecting bracket 5. Here, specifically, the lower part of the push rod bracket 3 is rotatably connected to a sliding member 6, and the sliding member 6 is slidably arranged on the connecting bracket 5 along the length extension direction of the connecting bracket 5 to achieve the connection between the lower part of the push rod bracket 3 and the connecting bracket 5.

As shown in the drawings, in this embodiment, the front support 1 includes two groups of front support rods 11 disposed on the left and right sides and a front cross bar 12 connected between the lower parts of the two groups of front support rods 11; the rear support 2 includes two groups of rear support rods 21 disposed on the left and right sides and a rear cross bar 22 connected between the lower parts of the two groups of rear support rods 21. The upper part of the front support rod 11 is rotatably connected to the upper part of the rear support rod 21 on the same side. The seat frame 4, the connecting frame 5 and the push rod frame 3 are all disposed between the front support rods 21 on both sides and the rear support rods 21 on both sides along the left and right directions.

In this embodiment, the seat frame 4 includes two seat rods 41 arranged on the left and right sides and extending in the front-to-back direction, and the connecting frame 5 also extends in the front-to-back direction, and has two connecting rods 51 arranged on the left and right sides and extending in the front-to-back direction. Here, the connecting rods 51 on both sides are integrally arranged to form a U-shaped rod with an opening facing forward. The push rod frame 3 includes two push rods 31 arranged on the left and right sides and extending in the up-down direction, and a push handle 32 rotatably connected between the upper parts of the push rods 31 on both sides.

On the left and right sides of the frame, the upper part of the front support rod 11 is rotatably connected to the upper part of the rear support rod 21 via the fourth shaft 104; the front part of the seat rod 41 is rotatably connected to the front support rod 11 via the fifth shaft 105, the rear part of the seat rod 41 is rotatably connected to the front part of the connecting rod 51 via the second shaft 102, and the rear part of the connecting rod 51 is rotatably connected to the rear support rod 21 via the first shaft 101; the push rod 31 is rotatably connected to the rear support rod 21 via the third shaft 103, and the lower part of the push rod 31 is rotatably connected to the sliding member 6, which is slidably provided on the connecting rod 51 along the length extension direction of the connecting rod 51, and here, the sliding member 6 adopts a sliding sleeve slidably mounted on the connecting rod 51. The third shaft 103 is located above the first shaft 101 on the rear support rod 21 ; the sliding sleeve 6 is located between the second shaft 102 and the first shaft 101 on the connecting rod 51 ; and the fifth shaft 105 is located below the fourth shaft 104 on the front support rod 11 .

In this embodiment, the front support rod 11 includes a front support rod body 11a extending gradually upward from the front to the rear and a front connecting rod body 11b extending backward from the upper part of the front support rod body 11a, and the rear support rod 21 includes a rear support rod body 21a extending gradually upward from the rear to the front and a rear connecting rod body 21b extending forward from the upper part of the rear support rod body 21a, and the rear part of the front connecting rod body 11b is rotatably connected to the front part of the rear connecting rod body 21b. Here, when the frame is in the unfolded state, the front connecting rod body 11b and the rear connecting rod body 21b both extend in the horizontal direction and together constitute a side armrest.

A front wheel assembly 10 is provided at the bottom of each front support rod 11, and a rear wheel assembly 20 is provided at the bottom of each rear support rod 21. Here, the spacing between the two sets of front wheel assemblies 10 along the left-right direction is greater than the spacing between the two sets of rear wheel assemblies 20 along the left-right direction. On the one hand, it can make the frame more stable when unfolded, and on the other hand, it can also make the two sets of rear wheel assemblies 20 fold between the two sets of front wheel assemblies 10 along the left-right direction after the front bracket 1 and the rear bracket 2 are close to each other when the frame is folded.

When the baby stroller is unfolded for use, as shown in Figures 1 to 3, the front support 1 and the rear support 2 are relatively unfolded and supported on the ground by the front wheel assembly 10 and the rear wheel assembly 20, the seat frame 4 and the connecting frame 5 are relatively unfolded in the front-to-back direction and supported between the front support 1 and the rear support 2, and the locking mechanism locks the frame in the unfolded state. The frame as a whole presents a very simple structure and has a good load-bearing capacity, which can provide stable support for infants and young children. Preferably, a locking member can be provided between the sliding member 6 and the connecting frame 5 to lock the frame body in the unfolded state.

When the baby stroller needs to be folded, as shown in Figure 4, the push handle 32 is rotated relative to the push rod 31 to fold the push rod frame 3, which is then driven to flip backward. The push rod frame 3 rotates relative to the rear bracket 2 and its lower end moves upward, thereby driving the sliding member 6 to move forward along the connecting frame 5 and driving the connecting frame 5 to rotate relative to the rear bracket 2. The seat frame 4 rotates accordingly and flips and folds relative to the connecting frame 5, thereby gradually closing the front bracket 1 and the rear bracket 2 in the front-to-back direction.

The folded frame is shown in Figure 5, the front bracket 1 and the rear bracket 2 are close to each other, the push rod frame 3 is folded at the rear side of the rear bracket 2, the seat frame 4 and the connecting frame 5 are flipped to extend in the up and down directions and folded between the front bracket 1 and the rear bracket 2, the two rear wheel assemblies 20 are folded between the two front wheel assemblies 10, and the frame presents a very compact and flat structure.

When the frame needs to be opened, the push rod only needs to be pulled, so that the rods on the frame can be relatively rotated and gradually unfolded, and the unfolding operation is also very convenient.

The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A stroller according to claim 1, comprising a frame with an unfolded state and a folded state, a front wheel assembly and a rear wheel assembly arranged at the bottom of the frame, and a locking mechanism for locking the frame in the unfolded state, characterized in that the frame comprises: a front bracket with the front wheel assembly at the bottom, a rear bracket with the rear wheel assembly at the bottom, a push rod frame, a seat frame and a connecting frame, the upper portion of the front bracket being rotatably connected to the upper portion of the rear bracket, the seat frame extending in a front-to-rear direction, the front portion of the seat frame being rotatably connected to the front bracket, one end portion of the connecting frame being rotatably connected to the rear portion of the seat frame, and the other end portion of the connecting frame being rotatably connected to the rear bracket, the push rod frame being rotatably connected to the rear bracket, and the lower portion of the push rod frame being both relatively rotatable and slidably connected to the connecting frame along the length extension direction of the connecting frame. 2. The baby stroller according to claim 1, characterized in that: a sliding member is rotatably connected to the lower portion of the push rod frame, and the sliding member is slidably arranged on the connecting frame along the length extension direction of the connecting frame. 3. The baby stroller according to claim 2, characterized in that: the connecting frame is rotatably connected to the rear support via a first axis, the connecting frame is connected to the seat frame via a second axis, and the sliding member is located between the first axis and the second axis on the connecting frame. 4. The baby stroller according to claim 3, characterized in that the push rod frame is rotatably connected to the rear bracket via a third axis, and the third axis is located above the first axis on the rear bracket. 5. The baby stroller according to claim 2, wherein the connecting frame has a connecting rod extending in the front-to-back direction, and the sliding member is a sliding sleeve slidably mounted on the connecting rod. 6. The baby stroller according to claim 1 is characterized in that: the front support includes two groups of front support rods respectively arranged on the left and right sides, the rear support includes two groups of rear support rods respectively arranged on the left and right sides, and the seat frame, the connecting frame and the push rod frame are all arranged between the front support rods on both sides and the rear support rods on both sides along the left and right directions. 7. The baby stroller according to claim 6 is characterized in that: the front support rod includes a front support rod body extending gradually upward from front to rear and a front connecting rod body extending backward from the upper part of the front support rod body; the rear support rod includes a rear support rod body extending gradually upward from rear to front and a rear connecting rod body extending forward from the upper part of the rear support rod body; the rear part of the front connecting rod body is rotatably connected to the front part of the rear connecting rod body. 8. The baby stroller according to claim 7, characterized in that when the frame is in the unfolded state, the front connecting rod body and the rear connecting rod body both extend in the horizontal direction to jointly form a side armrest. 9. The baby stroller according to claim 6, characterized in that: the front wheel assembly is disposed at the lower portion of each group of the front support rods, the rear wheel assembly is disposed at the lower portion of each group of the rear support rods, and the spacing between two groups of the front wheel assemblies is greater than the spacing between two groups of the rear wheel assemblies. 10. The baby stroller according to any one of claims 1 to 9, characterized in that: when the frame is in the unfolded state, the seat frame and the connecting frame are supported between the front support and the rear support in the front-to-back direction; when the frame is in the folded state, the push rod frame flips backward and is folded to the rear side of the rear support, and the seat frame and the connecting frame are both flipped to extend in the up-down direction and are folded between the front support and the rear support.