CN206307091U - Children trolley - Google Patents

Abstract

The utility model discloses a stroller for children, the frame of which only includes a front support, a push rod, a rear support, a seat frame and a connecting rod, wherein the lower part of the push rod is pivotally connected with the upper part of the front support, and the upper part of the rear support Pivoted to the push rod, the front of the seat frame is pivotally connected to the front frame and its rear is pivotally connected to the rear frame; one end of the link is pivotally connected to the front frame and its other end is pivoted The shaft is connected with a slider, and the slider is slidably arranged on the seat frame along the front-rear direction. When the vehicle frame needs to be folded, it is only necessary to drive the sliding member to slide forward along the seat frame after the vehicle frame is unlocked, so that the rods on the vehicle frame can be relatively rotated and gradually gathered together; when the vehicle frame needs to be opened, the operation The user only needs to lift up the push rod so that the rods on the frame can be rotated relative to each other and gradually unfolded. The unfolding and folding operations of the vehicle frame are very simple, and the folded structure is relatively flat, and the occupied space is small, which brings convenience to the daily use of users.

Description

stroller

technical field

The utility model relates to a stroller for children.

Background technique

In the prior art, children's strollers generally include a stroller frame with an unfolded state and a folded state, a wheel assembly disposed at the bottom of the stroller frame, and a locking mechanism for locking the stroller frame in the unfolded state. At present, there are many types of stroller frames for children's strollers, the number of rods of the stroller frames is different, and the connection relationship and connection position between the rods are different, so the folding principles and folding methods are also different. How to simplify the structure of the stroller frame and how to simplify the folding method of the stroller frame under the premise of ensuring the stable carrying of children is always the goal pursued by those skilled in the art.

Contents of the invention

The purpose of the utility model is to provide a children's stroller with simple structure and convenient opening and folding operations.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a children's stroller, including a frame with an unfolded state and a folded state, a wheel assembly arranged at the bottom of the frame, and used to lock the frame In the locking mechanism in the unfolded state, the vehicle frame includes: a front bracket extending gradually upward from the front to the rear, a push rod whose lower part is pivotally connected to the upper part of the front bracket, and an upper part that is pivotally connected to the push rod The rear support on the upper part, the seat frame with the front pivot connected to the front support and the rear pivot connected to the rear support, the vehicle frame also includes a connecting rod, and one end of the connecting rod is pivoted Connected to the front bracket, the other end of the connecting rod is pivotally connected with a sliding piece, and the sliding piece is slidably arranged on the seat frame along the front-rear direction.

Preferably, the connecting rod is located above the seat frame, and when the frame is folded, the slider slides forward along the seat frame to drive the rods on the frame to rotate relative to each other and gradually gather .

Further, the front part of the seat frame is pivotally connected to the front support through a first shaft, the upper end of the connecting rod is pivotally connected to the front support through a second shaft, and the push rod The lower part is pivotally connected to the upper part of the front bracket through a third shaft, and the second shaft is located between the first shaft and the third shaft on the front bracket.

As another embodiment, the upper end of the connecting rod, the lower part of the push rod and the upper part of the front bracket are pivotally connected together around the same rotating shaft.

Preferably, when the vehicle frame is in an unfolded state, the push rod and the front bracket extend along the same length direction.

Preferably, the seat frame includes a sitting part extending in the front-to-rear direction to provide sitting and standing, and a connecting part bent and extended downward from the rear of the sitting part, and the lower part of the connecting part is pivotally connected to the on the lower part of the rear support.

Further, the slider is provided on the seat frame so as to slide along the extending direction of the sitting part.

Preferably, the locking mechanism includes a locking member provided between the sliding member and the seat frame for locking the two.

Preferably, the front bracket has two front struts that are respectively arranged on the left and right sides and extend upwards gradually from front to rear; rod; the push rod has two push rod side rods which are respectively arranged on the left and right sides, the said seat frame has two seat rods which are respectively arranged on the left and right sides, correspondingly, there are two connecting rods which are respectively arranged on the left and right sides sides.

As a specific implementation manner, the sliding member is a sliding sleeve slidably sleeved on the seatpost.

Due to the application of the above-mentioned technical solution, the utility model has the following advantages compared with the prior art: the children's stroller of the utility model has a small number of rods in the frame, a simple structure, and the frame has good rigidity and stability when unfolded. stability. When the vehicle frame needs to be folded, it is only necessary to drive the sliding member to slide forward along the seat frame after the vehicle frame is unlocked, so that the rods on the vehicle frame can be relatively rotated and gradually gathered together; when the vehicle frame needs to be opened, the operation The user only needs to lift up the push rod so that the rods on the frame can be rotated relative to each other and gradually unfolded. The unfolding and folding operations of the vehicle frame are very simple, and the folded structure is relatively flat, and the occupied space is small, which brings convenience to the daily use of users.

Description of drawings

Accompanying drawing 1 is the three-dimensional view under the expanded state of children's stroller of the present utility model;

Accompanying drawing 2 is the side view of the expanded state of the children's stroller of the present utility model;

Accompanying drawing 3 is the side view of the folding process of the children's stroller of the present invention;

Accompanying drawing 4 is the three-dimensional view under the folded state of children's stroller of the present utility model;

Accompanying drawing 5 is the side view of the folding state of the children's stroller of the present utility model;

Among them: 1. Front support; 11. Front support rod; 12. Front cross bar; 10. Front wheel; 2. Rear support; 21. Rear support rod; 22. Rear cross bar; 20. Rear wheel; 3. Push rod ;31, push rod side bar; 4, seat frame; 41, sitting and standing part; 42, connecting part; 5, connecting rod; 6, sliding part (sliding sleeve); 7, first axis; 8, second axis; 9. The third axis.

detailed description

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

Referring to the children's stroller shown in Fig. 1 to Fig. 5, it includes a vehicle frame with an unfolded state and a folded state, a wheel assembly arranged at the bottom of the frame, and a locking mechanism for locking the frame in the unfolded state .

The vehicle frame comprises a front support 1, a rear support 2, a push rod 3 and a seat frame 4, wherein the front support 1 gradually inclines and extends from the front to the rear, the bottom of the push rod 3 is pivotally connected with the upper part of the front support 1, and the rear support The upper part of 2 is pivotally connected on the push rod 3, the front part of the seat frame 4 is pivotally connected on the front support 1 and its rear part is then pivotally connected on the rear support 2.

This vehicle frame also comprises link 5, and this link 5 is arranged on the top of seat frame 4, and the upper pivot of link 5 is connected on the front bracket 1, and the lower pivot of link 5 is connected with slide member 6, and this slide The member 6 is provided on the seat frame 4 so as to be slidable in the front-rear direction. Referring to the accompanying drawings, on the vehicle frame, the front portion of the seat frame 4 is pivotally connected to the front bracket 1 through the first shaft 7, and the upper end of the connecting rod 5 is pivotally connected to the front bracket 1 through the second shaft 8. Above, the lower part of the push rod 3 is pivotally connected with the upper part of the front bracket 1 through the third shaft 9 . In this embodiment, the second shaft 8 is located between the first shaft 7 and the third shaft 9 on the front bracket 1 . In this way, when the vehicle frame is folded, the sliding member 6 slides forward along the seat frame 4 so that the front bracket 1, the seat frame 4, the connecting rod 5, the rear bracket 2 and the push rod 3 on the vehicle frame are relatively rotated and gradually gathered together. .

In other embodiments, the third shaft 9 can also be coaxially connected with the second shaft 8 . In this way, the same folding manner as that of the vehicle frame of this embodiment can also be realized.

Specifically, in this embodiment, the front bracket 1 has two front struts 11 which are arranged on the left and right sides respectively and extend gradually upward from the front to the rear. Rod 12 makes the front bracket 1 a U-shaped bar with the opening facing upwards, and a group of front wheels 10 are respectively arranged on the lower parts of the left and right sides of the front bracket 1 . The rear bracket 2 has two rear struts 21 which are respectively arranged on the left and right sides and extend along the up and down direction. The lower parts of the rear struts 21 on both sides are fixedly connected with a rear cross bar 22, and the lower parts of the left and right sides of the rear bracket 2 are respectively A set of rear wheels 20 is provided. The push rod 3 is a U-shaped rod with the opening facing downwards, and it has two push rod side rods 31 respectively arranged on the left and right sides. Three-axis 9-phase pivot connection.

The seat frame 4 has two seat posts on the left and right sides and a cross bar fixedly connected between the seat posts on both sides. The seat post on each side has a sitting part 41 extending in the front and back directions to provide support for sitting and standing. The connecting portion 42 is bent and extended downward from the rear portion of the sitting portion 41 . The front part of the sitting part 41 is pivotally connected to the front strut 11 of the same side through the first shaft 7 , and the lower part of the connecting part 42 is pivotally connected to the lower part of the rear strut 21 of the same side.

Correspondingly, there are two connecting rods 5 located on the left and right sides, and the upper part of each connecting rod 5 is pivotally connected to the front support rod 11 on the same side through the second shaft 8; the sliding member 6 is a sliding sleeve , the sliding sleeve 6 is sheathed on the seat post and can slide forward and backward along the length extension direction of the sitting portion 41 .

In this embodiment, the locking mechanism includes a locking member arranged between the sliding member 6 and the seat frame 4 for locking the two. Group locks. The unlocking handle (not shown in the figure) can be set between the sliding sleeves 6 on both sides, so that the operator can unlock the locking parts on both sides when pulling the unlocking handle, and at the same time, the sliding sleeve 6 can be moved along the seat. Frame 4 slides forward, and then makes each rod member on the vehicle frame relatively rotate and gather together gradually.

To sum up, when the stroller is locked in the unfolded state, as shown in Figures 1 and 2, the push rod 3 and the front bracket 1 extend along the same length direction. The connecting rods 5 all form a triangular structure, and the front support rod 11, the push rod side rod 31, the rear support rod 21 and the seat post also form a triangular structure, so that the frame has good rigidity and stability, thereby providing stable sit-stand support.

When it is necessary to fold the stroller, as shown in Figure 3, the operator only needs to pull the unlocking handle from the front of the stroller to unlock the sliding sleeves 6 on both sides and make it slide forward along the seat frame 4, The push rod 3 turns backwards towards the rear support 2 due to its own weight, and the connecting rod 5 and the seat frame 4 rotate so that the front support 1, the rear support 2 and the push rod 3 are gradually gathered together along the front and rear directions. Finally, all the rods on the frame are tightly folded together to form the state shown in Figure 4 and Figure 5, and the folded structure of the frame is very compact and flat.

When it is necessary to open the stroller for use, the operator only needs to lift the push rod 3 to make the rods on the frame rotate relatively and the sliding sleeve 6 slides backward along the seat frame 4. When the sliding sleeve 6 slides Automatically lock when reaching the locked position on the seat frame 4, and the vehicle frame is automatically locked in this open state, and the operation is also very convenient.

The above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present utility model, and its purpose is to allow those familiar with this technology to understand the content of the utility model and implement it accordingly, and not to limit the protection scope of the 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 stroller for children, comprising a vehicle frame having an unfolded state and a folded state, a wheel assembly arranged at the bottom of the vehicle frame, and a locking mechanism for locking the vehicle frame in the unfolded state, characterized in that, The vehicle frame includes a front bracket extending gradually upward from front to rear, a push rod whose lower part is pivotally connected to the upper part of the front bracket, a rear bracket whose upper part is pivotally connected to the push rod, and a front pivot a seat frame connected to the front bracket and pivotally connected at the rear to the rear bracket, the vehicle frame also includes a link, one end of the link is pivotally connected to the front bracket, and The other end of the connecting rod is pivotally connected with a sliding piece, and the sliding piece is slidably arranged on the seat frame along the front-rear direction. 2. The stroller according to claim 1, wherein the connecting rod is located above the seat frame, and when the frame is folded, the sliding member slides forward along the seat frame to drive The rods on the vehicle frame are relatively rotated and gradually converged. 3. The children's stroller according to claim 2, wherein the front part of the seat frame is pivotally connected to the front bracket through a first shaft, and the upper end of the connecting rod is pivotally connected through a second shaft. The shaft is connected on the front bracket, the lower part of the push rod is pivotally connected with the upper part of the front bracket by a third shaft, and the second shaft is located on the first shaft on the front bracket. and the third axis. 4. The stroller for children according to claim 2, characterized in that: the upper end of the connecting rod, the lower part of the push rod and the upper part of the front bracket are pivotally connected together around the same rotating shaft. 5 . The stroller for children according to claim 1 , wherein when the frame is in an unfolded state, the push rod and the front bracket extend along the same length direction. 6 . 6. The stroller according to claim 1, wherein the seat frame includes a sitting part extending in the front-to-rear direction to provide sitting and standing, and a rear part bent and extended from the rear of the sitting part. A connecting part, the lower part of the connecting part is pivotally connected to the lower part of the rear bracket. 7. The stroller for children according to claim 6, wherein the sliding member is provided on the seat frame so as to slide along the extending direction of the sitting part. 8 . The stroller for children according to claim 1 , wherein the locking mechanism comprises a locking member disposed between the sliding member and the seat frame for locking the two. 9. The stroller according to any one of claims 1 to 8, characterized in that: the front bracket has two front struts which are respectively arranged on the left and right sides and extend upwards gradually from front to back; The bracket has two rear support rods which are respectively arranged on the left and right sides and extend along the up and down direction; the push rod has two push rod side rods which are respectively arranged on the left and right sides; Correspondingly, there are two connecting rods and they are respectively arranged on the left and right sides. 10 . The stroller for children according to claim 9 , wherein the sliding member is a sliding sleeve slidably sleeved on the seat post. 11 .