CN110271598A - A kind of children trolley - Google Patents

Abstract

The invention discloses a children's stroller, which includes a frame, the frame includes two side brackets arranged on left and right sides, and the side brackets include: a front support rod, the front support rod is deployed on the frame. In the unfolded state of the frame, the rear strut extends from the rear to the front and tilts upward, and the upper part of the front strut and the rear strut The upper part of the push rod is rotatably connected by the first shaft; the push rod, the lower part of the push rod and the rear support rod are rotatably connected by the second shaft; the seat post is in the front-rear direction when the frame is unfolded extension, the front part of the seat post and the front strut are rotatably connected through a third axis, and the rear part of the seat post and the lower part of the push rod are rotatably connected through a fourth axis; In the state, the second axis is located above the fourth axis. The children's stroller is easy to operate, easy to fold, and has a compact structure after being folded, and is easy to carry and store.

Description

a children's stroller

technical field

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

Background technique

A child stroller in the prior art includes a stroller frame having an unfolded position and a folded position, a front wheel assembly and a rear wheel assembly disposed at the bottom of the stroller frame, for locking the stroller frame in the unfolded state lower locking mechanism. There are many types of existing children's strollers, the number of poles of the stroller frame is different, and the connection positions between the poles are different, so the folding principle and folding method are different, and the effect after folding is also different.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an improved stroller for children in view of the deficiencies of the prior art.

To achieve the above object, the technical scheme adopted in the present invention is:

A child stroller, comprising a frame with an unfolded state and a folded state, a front wheel assembly disposed at the bottom front of the frame, and a rear wheel assembly disposed at the bottom rear of the frame, the frame The locking mechanism locked in the unfolded state, the frame includes two side brackets arranged on the left and right sides, and the side brackets on each side include: a front support rod, the front support rod is deployed in the frame. In the unfolded state of the frame, the rear strut extends from the rear to the front and tilts upward, and the upper part of the front strut and the rear strut extend from the front to the rear. The upper part of the push rod is rotatably connected through the first shaft; the push rod, the lower part of the push rod is rotatably connected with the rear support rod through the second shaft; the seat post, in the unfolded state of the frame, the seat post is in the front-rear direction extension, the front part of the seat post and the front strut are rotatably connected through a third axis, and the rear part of the seat post and the lower part of the push rod are rotatably connected through a fourth axis; In the state, the second axis is located above the fourth axis.

Further, in the folded state of the frame, the push rod is folded behind the rear support rod, the front support rod, the rear support rod and the seat post are close to each other, the fourth The shaft is located above the second shaft.

Further, the rear support rod includes a main body rod extending obliquely in the up-down direction and a connecting rod fixed on the upper part of the main body rod, and the connecting rod is rotatably connected with the front support rod through the first shaft.

Further, in the unfolded state of the vehicle frame, the front strut and the connecting rod are connected in the longitudinal direction and extend in the same longitudinal direction.

Further, the locking mechanism includes a deployment locking mechanism disposed at the rotational connection of the push rod and the seat post.

Further, the lower part of the front strut on each side is provided with the front wheel assembly, and the lower part of the rear strut on each side is provided with the rear wheel assembly, when the frame is folded In the state, the two groups of the rear wheel assemblies are folded between the two groups of the front wheel assemblies along the left and right directions.

Further, the side brackets on each side further include a reversing push handle, and the lower part of the reversing push handle on each side is rotatably connected with the push rod on the same side through a fifth axis, and the children's stroller has a front In the forward use state and the backward use state, in the forward use state, the reversing handle extends obliquely from front to rear and upward, and the upper end of the reversing handle is located behind the seat post; In the backward use state, the reversing handle extends from the rear to the front and upwards slantingly, the upper end of the reversing handle is located in front of the seat post, and the frame is also provided with a The reversing push handle is locked in the reversing locking member of the forward use state or the rearward use state.

Further, the reversing locking piece is provided on the reversing push handle, and in the forward use state, the reversing locking piece and the push rod are mutually locked; in the backward use state , the reversing locking piece and the front strut are mutually locked.

Further, the axis lines of the fourth axis and the fifth axis are coincident, or the fourth axis and the fifth axis are coaxial.

Further, the reversing push handle includes an upper reversing push handle and a lower reversing push handle, and the upper reversing push handle and the lower reversing push handle are rotatably connected through a sixth axis, and are rotatably connected at the position of the frame. In the folded state, the rotational connection between the upper reversing handle and the lower reversing handle and the rear wheel assembly form a support for the vehicle frame.

Due to the application of the above technical solutions, the present invention has the following advantages compared with the prior art: the stroller of the present invention is easy to fold and unfold, and has a compact structure after being folded, which is highly practical and convenient for consumers to use.

Description of drawings

Fig. 1 is a perspective view of the stroller of the present invention when the frame is unfolded (Example 1);

Figure 2 is a side view of the stroller of the present invention when the frame is unfolded (Example 1);

FIG. 3 is a perspective view of the stroller of the present invention in a state where the frame is folded (Example 1);

FIG. 4 is a side view of the stroller of the present invention in a state where the frame is folded (Example 1);

5 is a perspective view of the stroller of the present invention in a forward-facing state (Example 2);

6 is a side view of the stroller of the present invention in a forward-facing state (Example 2);

FIG. 7 is a perspective view of the stroller of the present invention in a backward use state (Example 2);

FIG. 8 is a side view of the stroller of the present invention in a backward use state (Example 2);

Figure 9 is a perspective view of the stroller of the present invention during the folding process (Example 2);

Figure 10 is a side view of the stroller of the present invention during the folding process (Example 2);

Figure 11 is a perspective view of the stroller of the present invention in a state where the frame is folded (Example 2);

Figure 12 is a side view of the stroller of the present invention with the frame folded (Example 2);

The symbols in the figure are:

1. Front wheel assembly; 2. Rear wheel assembly; 3. Deployment locking mechanism; 4. Front strut; 5. Rear strut; 5a, connecting rod; 5b, main rod; 6, push rod; 7, seat post; 8, reversing push handle; 8a, upper reversing push handle; 8b, lower reversing push handle; 9a, first axis; 9b, second axis; 9c, third axis; 9d, fourth axis; 9e, first axis Five axis; 9f, sixth axis.

Detailed ways

The technical solutions of the present invention will be further elaborated below with reference to the accompanying drawings and specific embodiments.

Example 1

As shown in FIG. 1 to FIG. 4 , the stroller of the present embodiment includes a frame having an unfolded state and a folded state, a front wheel assembly 1 arranged at the bottom front of the frame, and a rear wheel arranged at the bottom rear of the frame Component 2. A deployment locking mechanism 3 for locking the frame in the deployed state.

Specifically, the frame includes two side brackets arranged on the left and right sides, and the side brackets on each side include: a front support rod 4, and the front support rod 4 extends obliquely from front to rear and upward in the unfolded state of the frame; The support rod 5, the rear support rod 5 extends obliquely from the rear to the front and upwards in the unfolded state of the frame. The connecting rod 5a, the connecting rod 5a is rotatably connected with the upper part of the front strut 4 through the first shaft 9a, in the unfolded state of the frame, the front strut 4 and the connecting rod 5a are connected along the length direction and extend along the same length direction, Specifically, the front support rod 4 and the connecting rod 5a are set as arc rods, so that the shape of the cart is more beautiful; the push rod 6, the lower part of the push rod 6 and the rear support rod 5 are rotatably connected through the second shaft 9b; the seat post 7. In the unfolded state of the frame, the seat post 7 extends in the front-rear direction, the front part of the seat post 7 and the front strut 4 are rotatably connected through the third shaft 9c, and the rear part of the seat post 7 and the lower part of the push rod 6 pass through the third shaft 9c. The four axles 9d are rotatably connected; in the unfolded state of the frame, the second axle 9b is located above the fourth axle 9d.

Specifically, in this embodiment, the lower part of the front strut 4 on each side is provided with the front wheel assembly 1 , and the lower part of the rear strut 5 on each side is provided with the rear wheel assembly 2 . Of course, a group of front wheel assemblies 1 may also be arranged at the front of the bottom of the frame, and two groups of rear wheel assemblies 2 may be arranged at the rear of the bottom of the frame.

Specifically, the locking mechanism in this embodiment includes a deployment locking mechanism 3 disposed at the rotational connection between the push rod 6 and the seat post 7 . When the deployment locking mechanism 3 is locked, the front support rod 4 , the rear support rod 5 , the seat rod 7 and the The push rods 6 are all locked, so that the side brackets on both sides are locked in the unfolded state. Of course, the deployment locking mechanism 3 can also be arranged at the rotational connection between the front support rod 4 and the rear support rod 5, or the front support rod. 4 at the rotational connection between the seat post 7 , or at the rotational connection between the push rod 6 and the rear support rod 5 .

When the frame is folded from the unfolded state, after the side brackets on both sides are unlocked, the push rod 6 is pressed to rotate clockwise around the fourth axis 9d, and the lower part of the push rod 6 drives the rear of the seat post 7 to move upwards. The front part of the seat post 7 drives the front support rod 4 to rotate towards the rear support rod 5, so that the front support rod 4, the rear support rod 5, and the seat post 7 rotate and move closer to each other. Finally, as shown in Figs. When the frame is folded, the fourth axis 9d is located above the second axis 9b, the push rod 6 is folded behind the rear support rod 5, the seat post 7 is located between the front support rod 4 and the rear support rod 5, and two sets of rear wheels The assembly 2 is folded between the two sets of front wheel assemblies 1 in the left-right direction. Moreover, compared with the way of directly connecting the front strut 4 and the main body rod 5b in rotation, the arrangement of the connecting rod 5a further shortens the whole frame in the folded state. Height, more convenient for transportation and storage.

Example 2

As shown in FIGS. 4 to 12 , on the basis of Embodiment 1, in this embodiment, a reversing push handle 8 is added to the side brackets on each side, and the lower part of the reversing push handle 8 on each side is connected to the push rod 6 on the same side. Through the rotational connection of the fifth shaft 9e, here, the fourth shaft 9d and the axis of the fifth shaft 9e are coincident or the fourth shaft 9d and the fifth shaft 9e are coaxial, the stroller has a forward use State and backward use state, as shown in Figures 5 to 6, in the forward use state, the reversing push handle 8 extends from the front to the rear and tilts upward, and the upper end of the reversing push handle 8 is located behind the seat post 7; As shown in FIGS. 7 to 8 , in the backward use state, the reversing handle 8 extends from the rear to the front and upwards slantingly. A reversing locking piece (not shown in the figure) for locking the reversing push handle 8 in the forward use state or the rearward use state.

Specifically, the reversing locking piece is provided on the reversing push handle 8. In the forward use state, the reversing locking piece and the push rod 6 are mutually locked; in the rearward use state, the reversing locking piece and the front support The rods 4 are interlocked.

Specifically, the reversing push handle 8 includes an upper reversing push handle 8a and a lower reversing push handle 8b, and the upper reversing push handle 8a and the lower reversing push handle 8b are rotatably connected by a sixth shaft 9f, wherein the sixth shaft 9f A push handle locking mechanism is provided at the place, preferably, an unlocking operation member is provided on the push handle locking mechanism, and a linkage unlocking mechanism is also provided between the push handle locking mechanism and the unfolding locking mechanism 3, and the linkage unlocking mechanism can specifically adopt a traction cable, By operating the unlocking operation member to unlock the push handle locking mechanism, the deployment locking mechanism 3 can be unlocked through the linkage unlocking mechanism between the two, thereby realizing the unlocking of the two side brackets.

When the frame is folded from the unfolded state, first convert the stroller to the forward use state. After unlocking the brackets on both sides, turn the upper reversing handle 8a counterclockwise around the sixth axis 9f, and then turn the Press down the lower reversing push handle 8b to make it rotate clockwise around the fifth axis 9e, and drive the push rod 6 to rotate clockwise together. In the folded state of the frame, the upper reversing push handle 8a and the lower reversing push handle The pivot joint of 8b and the rear wheel assembly 2 form a support for the frame, so that the frame can stand on its own after being folded.

Through the application of the technical solutions of the above-mentioned embodiments, the children's stroller of the present invention has a small number of rods, a simple structure, convenient folding, and strong practicability. The backward use state enriches the user's use options.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left" and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, only It is to facilitate the description of the present invention and to simplify the description, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

The above-mentioned embodiments are only intended to illustrate the technical concept and characteristics of the present invention, and the purpose thereof is to enable those who are familiar with the art to understand the content of the present invention and implement them accordingly, and cannot limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. A child stroller, comprising a frame having an unfolded state and a folded state, a front wheel assembly disposed at the bottom front of the frame, and a rear wheel assembly disposed at the bottom rear of the frame, A locking mechanism for locking the frame in the unfolded state, the frame includes two side brackets respectively arranged on the left and right sides, and characterized in that, the side brackets on each side include: a front strut, the front strut extending obliquely from front to rear and upward in the unfolded state of the frame; a rear support rod, the rear support rod extends obliquely from the rear to the front and upward in the unfolded state of the frame, and the upper part of the front support rod and the upper part of the rear support rod are rotatably connected through a first shaft; a push rod, the lower part of the push rod is rotatably connected with the rear support rod through a second shaft; a seat post, the seat post extends in the front-rear direction in the unfolded state of the frame, the front part of the seat post and the front strut are rotatably connected through a third shaft, and the rear part of the seat post is connected to the The lower part of the push rod is rotatably connected through the fourth shaft; In the unfolded state of the frame, the second axle is located above the fourth axle. 2 . The stroller according to claim 1 , wherein in the folded state of the frame, the push rod is folded behind the rear support rod, and the front support rod and the rear support rod are folded. 3 . The support rod and the seat post are close to each other, and the fourth shaft is located above the second shaft. 3 . The stroller according to claim 2 , wherein the rear support rod comprises a main body rod extending obliquely in the up-down direction and a connecting rod fixed on the upper part of the main body rod, the connecting rod passing through the The first shaft is rotatably connected with the front strut. 4 . The stroller according to claim 3 , wherein in the unfolded state of the frame, the front support rod and the connecting rod are in contact with each other in the longitudinal direction and extend in the same longitudinal direction. 5 . 5. The stroller of claim 1, wherein the locking mechanism comprises a deployment locking mechanism disposed at the rotational connection of the push rod and the seat post. 6 . The stroller according to claim 1 , wherein the lower part of the front strut on each side is provided with the front wheel assembly, and the lower part of the rear strut on each side is provided with the front wheel assembly. 7 . In the rear wheel assembly, in the folded state of the frame, the two groups of the rear wheel assemblies are folded between the two groups of the front wheel assemblies along the left-right direction. 7. The stroller according to any one of claims 1 to 6, wherein the side bracket on each side further comprises a reversing push handle, and the lower part of the reversing push handle on each side is the same as the same side The push rod is rotatably connected through the fifth axis, and the stroller has a forward use state and a backward use state. In the forward use state, the reversing push handle extends obliquely from front to back and upward. , the upper end of the reversing handle is located at the rear of the seat post; in the backward use state, the reversing handle extends obliquely from the rear to the front and upward, and the upper end of the reversing handle is located at the rear of the seat post. In front of the seat post, the frame is further provided with a reversing lock for locking the reversing push handle in the forward use state or the rearward use state. 8 . The stroller according to claim 7 , wherein the reversing locking member is provided on the reversing push handle, and in the forward use state, the reversing locking member is connected with the reversing locking member. The push rods are locked with each other; in the backward use state, the reversing locking piece and the front support rod are locked with each other. 9 . The stroller according to claim 7 , wherein the axis lines of the fourth axis and the fifth axis are coincident or the fourth axis and the fifth axis are coaxial. 10 . 10. The stroller according to claim 7, wherein the reversing push handle comprises an upper reversing push handle and a lower reversing push handle, the upper reversing push handle and the lower reversing push handle The handle is rotatably connected through a sixth axis, and in the folded state of the frame, the rotational connection between the upper reversing handle and the lower reversing handle and the rear wheel assembly form a support for the vehicle frame.