CN204309860U - Children trolley - Google Patents

Abstract

The utility model discloses a stroller for children, which comprises a stroller frame with an unfolded state and a folded state, a wheel assembly arranged at the bottom of the pushcart frame, and a locking mechanism for locking the pushcart frame in the unfolded state. The stroller frame includes a front bracket, a rear bracket and a seat frame, the seat frame at least includes a side frame that can be used for pushing, the rear bracket is rotatably connected with a sliding piece, and the sliding piece is slidably arranged on the front bracket , the upper part of the rear bracket is rotatably connected to the surrounding frame, the cart frame also includes a first link and a second link, one end of the first link is rotatably connected to the slider, and the other end of the first link is rotatably connected On the second link, one end of the second link is rotatably connected to the front bracket, and the other end of the second link is rotatably connected to the surrounding frame. The utility model has a simple structure, a small number of rods, convenient and easy unfolding and folding operations, and the folded structure is compact, takes up little space, and is easy to carry and store.

Description

stroller

technical field

The utility model relates to a stroller for children.

Background technique

In the prior art, children's strollers usually include a foldable stroller frame and a child seat on the stroller frame. When the stroller frame is folded, it is usually necessary to remove the child seat from the stroller. Take it off the shelf and store it separately or fold it, which is inconvenient for use. On some strollers, the user does not need to remove the child seat when folding the stroller frame, the child seat can be placed on the folded stroller frame after the stroller frame is folded or stowed in the folded On the stroller frame, the folded children's stroller is bulky, which affects the carrying and storage of the stroller.

Contents of the invention

The purpose of the utility model is to provide a children's stroller with simple structure, few rods, convenient folding and unfolding operations, and smaller volume after folding.

For achieving the above object, the technical scheme that the utility model adopts is:

A stroller for children, comprising a stroller frame having an unfolded state and a folded state, a wheel assembly arranged at the bottom of the stroller frame, and a locking mechanism for locking the stroller frame in the unfolded state, The stroller frame includes a front bracket, a rear bracket and a seat frame, and the seat frame at least includes a side frame that can be used for pushing, and the rear bracket is rotatably connected with a sliding part, the The sliding member is slidably arranged on the front bracket along the length extension direction of the front bracket, the upper part of the rear bracket is rotatably connected to the surrounding frame, and the trolley frame also includes a first connecting rod and The second connecting rod, one end of the first connecting rod is rotatably connected to the slider, the other end of the first connecting rod is rotatably connected to the second connecting rod, and the second connecting rod One end of the second connecting rod is rotatably connected to the front bracket, and the other end of the second link is rotatably connected to the surrounding frame,

When the cart frame is in the unfolded state, the seat frame stands above the rear bracket and the second connecting rod, and the surrounding frame can be pushed; when the cart frame is folded state, the front bracket, the rear bracket, the first connecting rod, the second connecting rod and the surrounding frame move closer to each other along the height direction of the cart frame.

Preferably, the front bracket and the rear bracket are disposed across each other, and the sliding member is located below the second connecting rod on the front bracket.

Further, the upper part of the rear bracket is pivotally connected to the surrounding frame through a first shaft, and one end of the second link is pivotally connected to the surrounding frame through a second shaft, and the second shaft Located above the first axis on the surrounding frame.

Furthermore, the rear support includes two rear support rods respectively located on the left and right sides, and a connection shaft connected between the rear support rods on both sides, and the sliding member is rotatably arranged on the connection shaft. On the connecting shaft, the front support is located between the rear support rods on both sides.

As a specific implementation, the second connecting rod is U-shaped with the opening facing upwards, the upper part of the front bracket is provided with a mounting hole, and the bottom of the second connecting rod is rotatably passed through the mounting hole. The hole can be turned back and forth relative to the front bracket, and the upper ends on both sides of the second connecting rod are respectively pivotally connected to the surrounding frame.

As a specific implementation, the first connecting rod is also U-shaped with an upward opening, the bottom of the first connecting rod is rotatably connected to the slider, and the two ends of the first connecting rod The upper side ends are respectively pivotally connected to the middle part of the second connecting rod.

Preferably, the sliding member is a sliding sleeve that is slidably sleeved on the front bracket up and down.

Further, the locking mechanism is arranged between the slider and the front bracket for locking the two.

Preferably, on the seat frame, the surrounding frame is in a closed ring shape, and the seat frame further includes a handrail bar and an awning bar arranged on the surrounding frame.

Preferably, a basket rod is also provided on the front bracket.

Due to the application of the above-mentioned technical scheme, the utility model has the following advantages compared with the prior art: on the children's stroller of the utility model, the seat frame is set as a part of the cart frame, and the seat frame is provided for children to sit and stand. At the same time, it can be used as a push rod, and the seat frame can be rotated with other rods of the stroller frame so that the stroller frame can be opened or folded along the height direction, thereby realizing the unfolding and folding of the stroller. The unique structure makes the structure of the stroller simple, and the number of rods is small. At the same time, the unfolding and folding operations of the stroller are convenient and easy, and the folded structure is compact, takes up little space, and is easy to carry and store.

Description of drawings

Accompanying drawing 1 is one of three-dimensional views that the children's stroller of the present invention is in the unfolded state;

Accompanying drawing 2 is the second perspective view of the children's stroller of the present invention in the unfolded state;

Accompanying drawing 3 is the side view of the children's stroller of the present utility model in the unfolded state;

Accompanying drawing 4 is the side view of the children's stroller of the present invention in a half-folded state;

Accompanying drawing 5 is the side view of the children's stroller of the present invention in a folded state.

Among them: 1. Front bracket; 11. First installation hole; 2. Rear bracket; 21. Rear support rod; 22. Connecting shaft; 3. Seat frame; 31. Surrounding frame; 32. Handrail rod; ;

4. Slider; 41. Second mounting hole; 5. First connecting rod; 6. Second connecting rod; 7. First shaft; 8. Second shaft; 9. Basket rod;

10. Front wheel; 20. Rear wheel.

Detailed ways

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

The following definitions of directions are all defined according to the direction observed when the child sits and stands on the seat frame 3 when the stroller is in the unfolded state, and the front and rear directions refer to the left and right directions in Figures 3 to 5 , where the left side is the front, and the right side is the back; the up and down directions refer to the up and down directions shown in the accompanying drawings.

Referring to Figures 1 to 5, a stroller for children includes a stroller frame in an unfolded state and a folded state, a wheel assembly located at the bottom of the stroller frame, and a wheel assembly for locking the stroller frame in the unfolded state. locking mechanism. The stroller frame includes a front bracket 1, a rear bracket 2, a seat frame 3, a slider 4, a first connecting rod 5 and a second connecting rod 6, and the seat frame 3 at least includes a side wall and can be pushed. frame 31. The wheel assembly includes a front wheel 10 arranged at the bottom of the front frame 1 and a rear wheel 20 arranged at the bottom of the rear frame 2 .

The rear bracket 2 is rotatably connected with a slider 4, and the slider 4 is slidably arranged on the front bracket 1 along the length extension direction of the front bracket 1, and the upper part of the rear bracket 2 is rotatably connected to the surrounding frame 31; the first connecting rod 5 One end of the first link 5 is rotatably connected to the slider 4, and the other end of the first link 5 is rotatably connected to the second link 6; one end of the second link 6 is rotatably connected to the front bracket 1, and the other end is rotatably connected to the on the surrounding frame 31. Like this, just constitute a slider crank mechanism between the second connecting rod 6, the first connecting rod 5, the sliding member 4 and the front bracket 1, and between the surrounding frame 31, the second connecting rod 6, the front bracket 1 and the rear bracket 2 A four-bar linkage mechanism is formed.

On the cart frame, the front bracket 1 and the rear bracket 2 are intersected, and the position of the slider 4 on the front bracket 1 is below the rotating connection position between the second connecting rod 6 and the front bracket 1; The rotation connection point between the upper part and the surrounding frame 31 is located below the rotation connection point between the second connecting rod 6 and the surrounding frame 31 . When the stroller frame is in the unfolded state, the seat frame 3 stands above the rear support 2 and the second connecting rod 6 to provide children with sitting and standing, and the surrounding frame 31 can be used as a push rod for pushing. When the cart frame is unfolded, the cart frame can be locked in the unfolded state by locking the slider crank mechanism or the four-bar linkage mechanism.

Referring to the accompanying drawings, in this embodiment, the stroller is a three-wheeled stroller, and the rear bracket 2 includes two rear struts 21 respectively located on the left and right sides and two rear struts 21 connected to the rear struts 21 on both sides. The upper parts of the two rear struts 21 are pivotally connected to the left and right sides of the surrounding frame 31 through the first shaft 7 respectively. The front support 1 is a single support rod, which gradually inclines from the front to the rear and is located between the rear support rods 21 on both sides. The sliding member 4 adopts a sliding sleeve that can slide up and down on the front bracket 1 , and the sliding sleeve is directly pivotally connected to the connecting shaft 22 with the connecting shaft 22 as a rotating shaft.

The second connecting rod 6 adopts a U-shaped bar with the opening facing upwards. The rear end of the front bracket 1 is provided with a first mounting hole 11, and the bottom end of the second connecting rod 6 is rotatably passed through the first mounting hole of the front bracket 1. The hole 11 is turned back and forth relative to the front bracket 1 , and the upper ends on both sides of the second connecting rod 6 are pivotally connected to the left and right sides of the surrounding frame 31 through the second shaft 8 . Correspondingly, the first connecting rod 5 also adopts a U-shaped rod structure with the opening facing upwards, and the slider 4 is provided with a second mounting hole 41, and the bottom end of the first connecting rod 5 is rotatably passed through the second mounting hole 41. In the middle, the sliding member 4 is flipped back and forth, and the upper ends on both sides of the first connecting rod 5 are respectively pivotally connected to the middle part of the second connecting rod 6 .

In this embodiment, the locking mechanism is arranged between the slider 4 and the front bracket 1 for locking the relative position between the slider 4 and the front bracket 1, when the position between the slider 4 and the front bracket 1 is locked When the mechanism is locked, the position of the slider crank mechanism formed between the second connecting rod 6, the first connecting rod 5, the slider 4 and the front bracket 1 is locked, so that the relative position between the second connecting rod 6 and the front bracket 1 The position is locked, so that the position of the four-bar linkage formed between the surrounding frame 31, the second connecting rod 6, the front support 1 and the rear support 2 is also locked.

The front bracket 1 is also provided with a basket rod 9, which is used to install the basket to place the accompanying items.

On the seat frame 3 , the surrounding frame 31 is in a closed ring shape, and the surrounding frame 31 is also provided with a handle bar 32 and an awning bar 33 .

When the cart frame is in the unfolded state, referring to Fig. 1 to Fig. 3, the locking mechanism between the slider 4 and the front bracket 1 is in the locked state, the second link 6, the first link 5, the slider 4 and the front The slider crank mechanism formed between the brackets 1 is in a stable expanded state, so that the four-bar linkage formed between the surrounding frame 31, the second connecting rod 6, the front bracket 1 and the rear bracket 2 is also in a stable expanded state, and the seat The pocket frame 3 stands above the rear bracket 2 and the second connecting rod 6 for children to sit and stand, and the surrounding frame 31 can be used for pushing.

When the stroller frame needs to be folded, referring to Fig. 4, first unlock the locking mechanism between the slider 4 and the front bracket 1, so that the slider 4 can slide back and forth on the front bracket 1; then push down the surrounding frame 31, so that The rear bracket 2 and the second connecting rod 6 are respectively turned forward relative to the front bracket 1. During the forward turning process of the second connecting rod 6, the first connecting rod 5 drives the slider 4 to slide downward relative to the front bracket 1, so that the surrounding frame 31 , the second connecting rod 6, the first connecting rod 5, the rear bracket 2 and the front bracket 1 gradually move closer along the height direction of the cart frame until the surrounding frame 31, the second connecting rod 6, the first connecting rod 5, the rear The bracket 2 and the front bracket 1 are closely moved together, the cart frame is in a flat and compact structure as shown in Figure 5, and the cart frame is completely folded. During the above-mentioned folding process, the front wheels 10 and the rear wheels 20 are always on the ground to form a support for the stroller frame.

When the cart frame needs to be expanded, the surrounding frame 31 is lifted upwards, and the rear bracket 2 and the second connecting rod 6 are turned back relative to the front bracket 1 thereupon, and the second connecting rod 6 pulls the first connecting rod 5 to drive The sliding part 4 slides upwards relative to the front bracket 1, so that the surrounding frame 31, the first connecting rod 5, the second connecting rod 6, the front bracket 1 and the rear bracket 2 are gradually expanded until the cart frame is fully unfolded and locked. When the mechanism is locked, the cart frame is in a stable unfolded state.

To sum up, in the children's stroller of the present utility model, the seat frame 3 is set as a part of the stroller frame and participates in the folding of the stroller frame, so that not only the push rod and other parts are omitted, but also the The number of rods of the stroller frame also enables the child stroller to be folded with a seat pocket, and the volume of the folded stroller frame is greatly reduced, and it also avoids the need to disassemble the child seat pocket in the prior art Defects in separate storage. In addition, the structure of the stroller is very simple, the operation of folding and unfolding is very convenient, the folded volume is small, and it is easy to carry and store.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present utility model, and its purpose is to enable those familiar with this technology to understand the content of the present utility model and implement it accordingly, and not to limit the protection scope of the present utility model. All equivalent changes or modifications made according to the spirit of the utility model shall fall within the protection scope of the utility model.

Claims (10)

1. A child stroller comprising a stroller frame having an unfolded state and a folded state, a wheel assembly disposed at the bottom of the stroller frame, a locking mechanism for locking the stroller frame in the unfolded state The mechanism is characterized in that: the cart frame includes a front bracket, a rear bracket and a seat frame, and the seat frame at least includes a surrounding frame with side walls that can be used for pushing, and the rear bracket is rotatably connected to There is a sliding part, which is slidably arranged on the front support along the length extension direction of the front support, and the upper part of the rear support is rotatably connected to the surrounding frame, and the trolley frame is also It includes a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably connected to the slider, and the other end of the first connecting rod is rotatably connected to the second connecting rod, One end of the second connecting rod is rotatably connected to the front bracket, and the other end of the second connecting rod is rotatably connected to the surrounding frame, When the cart frame is in the unfolded state, the seat frame stands above the rear bracket and the second connecting rod, and the surrounding frame can be pushed; when the cart frame is folded state, the front bracket, the rear bracket, the first connecting rod, the second connecting rod and the surrounding frame move closer to each other along the height direction of the cart frame. 2 . The stroller for children according to claim 1 , wherein the front frame and the rear frame are intersecting each other, and the sliding member is located below the second connecting rod on the front frame. 3 . 3. The stroller according to claim 2, characterized in that: the upper part of the rear bracket is pivotally connected to the surrounding frame through a first shaft, and one end of the second connecting rod is pivotally connected through a second shaft. A shaft is connected to the surrounding frame, and the second shaft is located above the first shaft on the surrounding frame. 4. The stroller according to any one of claims 1 to 3, characterized in that: the rear support includes two rear support rods respectively located on the left and right sides, and a rear support rod connected between the rear support rods on both sides. A connecting shaft on which the slider is rotatably arranged around the connecting shaft, and the front bracket is located between the rear support rods on both sides. 5. The children's stroller according to claim 4, characterized in that: the second connecting rod is U-shaped with the opening facing upwards, the upper part of the front bracket is opened with a mounting hole, and the second connecting rod The bottom part is rotatably installed in the installation hole so as to be turned back and forth relative to the front bracket, and the upper ends on both sides of the second connecting rod are respectively pivotally connected to the surrounding frame. 6. The baby stroller according to claim 5, wherein the first connecting rod is also U-shaped with its opening facing upwards, and the bottom of the first connecting rod is rotatably connected to the sliding member , the upper ends on both sides of the first connecting rod are respectively pivotally connected to the middle part of the second connecting rod. 7 . The stroller for children according to claim 1 , wherein the sliding member is a sliding sleeve sleeved on the front bracket so as to slide up and down. 8 . 8. The stroller for children according to claim 1 or 7, characterized in that: the locking mechanism is provided between the sliding member and the front bracket for locking the two. 9. The baby stroller according to claim 1, characterized in that: on the seat frame, the surrounding frame is in a closed ring shape, and the seat frame also includes a handrail bar and a handle bar arranged on the surrounding frame. awning pole. 10. The stroller for children according to claim 1, characterized in that: the front bracket is further provided with a basket rod.