CN207955752U - A kind of children trolley - Google Patents

Abstract

The utility model discloses a kind of children trolleys, it include the stroller frame with expansion and folded state, stroller frame includes fore-stock, after-poppet, the secondary push rod being rotatablely connected respectively with fore-stock and after-poppet, the commutation push rod being at least rotatablely connected with a component in two components of secondary push rod and after-poppet, the seat bar being rotatablely connected respectively with fore-stock and after-poppet, the sliding part and connecting rod being slidably arranged on a bar, the one end of connecting rod is at least rotatablely connected with a component in two components of fore-stock and secondary push rod, or the one end of connecting rod is at least rotatablely connected with a component in two components of after-poppet and secondary push rod, or the one end of connecting rod is rotatablely connected with fore-stock or after-poppet, the other end of connecting rod is rotatablely connected with sliding part.The children trolley is unfolded and folding operation is convenient, and after-poppet can be housed between secondary push rod and commutation push rod after folding so that the children trolley after folding is compact-sized, small, easy to carry and storage.

Description

a stroller for children

technical field

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

Background technique

The children's stroller in the prior art includes a stroller frame with an unfolded position and a folded position, a front wheel assembly and a rear wheel assembly arranged at the bottom of the stroller frame for locking the stroller frame in the unfolded state the locking mechanism. There are many types of existing children's strollers, the number of rods of the stroller frame is different, and the connection positions between the rods are different, so the folding principles, folding methods and folding effects are different.

Contents of the invention

The purpose of the utility model is to provide an improved children's stroller aiming at the deficiencies of the prior art.

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

A stroller for children, comprising a stroller frame in unfolded and folded states, a front wheel assembly arranged at the bottom front of the stroller frame, and a rear wheel set at the bottom rear of the stroller frame Assembly and locking mechanism for locking the stroller frame in deployment, the stroller frame comprising:

a front bracket for installing the front wheel assembly;

a rear bracket for installing the rear wheel assembly;

an auxiliary push rod, the lower part of the auxiliary push rod is respectively rotatably connected to the upper part of the front bracket and the upper part of the rear bracket;

A reversing push rod, the lower part of the reversing push rod is at least rotatably connected to one of the two parts of the lower part of the auxiliary push rod and the upper part of the rear bracket, when the baby stroller is in the unfolded state , the reversing push rod has a first working position that gradually extends upward from front to rear and a second working position that gradually extends upward from rear to front;

a seat post, the seat post is respectively rotatably connected to the front bracket and the rear bracket;

a sliding part, the sliding part is slidably arranged on the seat post along the length extension direction of the seat post;

A connecting rod, one end of the connecting rod is at least rotatably connected to one of the two parts of the front bracket and the auxiliary push rod, or one end of the connecting rod is at least connected to the rear bracket and the One of the two parts of the auxiliary push rod is rotatably connected, or one end of the connecting rod is rotatably connected to the front bracket or the rear bracket, and the other end of the connecting rod is connected to the slider. rotary connection;

When the child stroller is folded, the auxiliary push rod and the reversing push rod are turned downwards to move closer to the rear support, and the front support is turned backward to move closer to the rear support. When the child pushes When the cart is in the folded state, the front bracket, the rear bracket, the auxiliary push rod and the reversing push rod are close to each other, in each side of the left and right sides of the cart frame, along the left and right direction , the rear brackets are located between the auxiliary push rod and the reversing push rod.

Preferably, the stroller frame further includes a handrail, and the handrail is fixedly connected to the auxiliary push rod or the rear bracket. When the children's stroller is in the expanded state, the reversing push rod is in In the first working position, the reversing push rod is connected to the auxiliary push rod, and the baby stroller is in the forward use state; when the baby stroller is in the unfolded state, the reversing push rod is in the second When in the working position, the reversing push rod is connected with the handle bar, and the baby stroller is in a reverse use state.

Further, the reversing push rod is provided with a first connection part, the auxiliary push rod is provided with a second connection part matched with the first connection part, and the handrail rod is provided with a The third connecting part matched with the first connecting part, when the baby stroller is in the unfolded state and the reversing push rod is in the first working position, the first connecting part is matched with the second connecting part , when the baby stroller is in the unfolded state and the reversing push rod is in the second working position, the first connecting portion cooperates with the third connecting portion.

Preferably, when the reversing push rod is in the first working position, the auxiliary push rod and the reversing push rod are located in the same plane, and the auxiliary push rod is located inside the reversing push rod.

Preferably, the auxiliary push rod includes a first rod and a second rod fixedly connected, the lower part of the first rod is rotatably connected to the front bracket, and the connection between the first rod and the second rod It is rotatably connected with the rear bracket, and when the stroller is in the unfolded state, the first rod and the front bracket extend along the same straight line, and the first rod, the front bracket, the rear An isosceles triangle structure is formed between the bracket and the center line of the front wheel assembly and the rear wheel assembly, the first rod and the front bracket are one waist of the isosceles triangle structure, and the rear The bracket is the other waist of the isosceles triangle structure.

Preferably, the lower part of the auxiliary push rod, the lower part of the reversing push rod, and the upper part of the rear bracket are rotationally connected with the same axis.

Preferably, one end of the connecting rod, the upper part of the front bracket, and the lower part of the auxiliary push rod are connected to the same axis for rotation.

Preferably, the handle bar is fixedly arranged on the upper part of the rear bracket.

Preferably, the locking mechanism is arranged between any two movably connected parts of the front bracket, the rear bracket, the auxiliary push rod, the connecting rod and the slider.

Preferably, the stroller further includes an unlocking strap for unlocking the locking mechanism, and the unlocking strap is provided on the seat post.

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 is simple in structure, convenient to unfold and fold, and the folded children's stroller is compact in structure, small in size and easy to carry and storage.

Description of drawings

Accompanying drawing 1 is the three-dimensional view of the children's stroller of the present invention in the unfolded state (the children's stroller is in the forward use state);

Accompanying drawing 2 is the side view of the children's stroller in the unfolded state of the utility model (the children's stroller is in the forward use state);

Accompanying drawing 3 is the side view of the children's stroller in the expanded state of the utility model (the children's stroller is in the reverse use state);

Accompanying drawing 4 is the side view of the children's stroller of the present utility model in the folding process;

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

Among them: 1. Cart frame; 11. Front bracket; 12. Rear bracket; 13. Vice push rod; 131. Second connecting part; 132. First rod; 133. Second rod; 14. Reversing push rod ; 141, the first connecting part; 15, the seat post; 16, the sliding member; 17, the connecting rod; 18, the handle bar; 181, the third connecting part; 2, the front wheel assembly; 3, the rear wheel assembly; 4, unlock Drawstring.

Detailed ways

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

As shown in Figures 1 to 5, the children's stroller of the present utility model includes a stroller frame 1 in unfolded and folded states, a front wheel assembly 2 arranged at the bottom front of the stroller frame 1, a The rear wheel assembly 3 at the bottom rear portion of the vehicle frame 1 and the locking mechanism for locking the stroller frame 1 in the unfolded state.

The stroller frame 1 includes a front bracket 11 , a rear bracket 12 , an auxiliary push rod 13 , a reversing push rod 14 , a seat post 15 , a slider 16 and a connecting rod 17 . The front bracket 11 is used to install the front wheel assembly 2; the rear bracket 12 is used to install the rear wheel assembly 3; the lower part of the auxiliary push rod 13 is respectively connected to the upper part of the front bracket 11 and the upper part of the rear bracket 12 in rotation; the reversing push rod 14 The bottom of the bottom is at least rotatably connected with the bottom of the auxiliary push rod 13 and one of the upper parts of the rear bracket 12; the seatpost 15 is rotatably connected with the front bracket 11 and the rear bracket 12 respectively; 15 is slidably arranged on the seat post 15 in the direction of its length extension; one end of the first link 17 is at least rotationally connected with one of the two components of the front bracket 11 and the auxiliary push rod 13, or one end of the first link 17 part is rotatably connected with at least one of the two parts of the rear bracket 12 and the auxiliary push rod 13, or one end of the first connecting rod 17 is rotatably connected with the front bracket 11 or the rear bracket 12, and the other end of the first connecting rod 17 One end is rotatably connected with the slider 16 .

In this embodiment, the lower part of the auxiliary push rod 13, the lower part of the reversing push rod 14 and the upper part of the rear bracket 12 are connected with the same axis, and the upper part of the front bracket 11, the lower part of the auxiliary push rod 13 and the connecting rod 17 The three parts at one end are connected by the same shaft rotation, like this, a four-bar linkage mechanism is formed between the front bracket 11, the auxiliary push rod 13, the rear bracket 12 and the seat post 15, and the front bracket 11, the seat post 15, the sliding member 16 Form a slider crank mechanism with connecting rod 17.

In this embodiment, the auxiliary push rod 13 includes a first rod 132 located at the bottom of the auxiliary push rod 13 and a second rod 133 whose lower end is fixedly connected to the upper end of the first rod 132, the first rod 132 and the second rod The joints of 133 are respectively connected with the lower part of the reversing push rod 14 and the upper part of the rear bracket 12 on the same axis, and the lower part of the first rod 132, the upper part of the front bracket 11 and one end of the connecting rod 17 are the same. Shaft rotation connection.

When the stroller is in the unfolded state, the reversing push rod 14 has a first working position that extends upwards gradually from the front to the rear and a second working position that gradually extends upwards from the rear to the front. When switching between the first working position and the second working position, the child stroller can be switched between the forward use state and the reverse use state. The stroller frame 1 also includes a handrail bar 18, which is fixedly connected to the top of the rear bracket 12 or the bottom of the auxiliary push rod 13. In this implementation, the handrail bar 18 is fixedly connected to the top of the rear bracket 12. When the reversing push rod 14 was in the first working position, the reversing push rod 14 was fixedly connected with the auxiliary push rod 13, and now the children's stroller was in the forward use state, as shown in Figures 1 and 2, when the reversing When the push rod 14 is in the second working position, the reversing push rod 14 is fixedly connected with the handrail rod 18, and the baby stroller is in the reverse use state, as shown in FIG. 3 .

Specifically, the reversing push rod 14 is provided with a first connecting portion 141, the auxiliary push rod 13 is provided with a second connecting portion 131 matching with the first connecting portion 141, and the handrail rod 18 is provided with a second connecting portion 131 that is compatible with the first connecting portion. 141 to match the third connection part 181 . When the reversing push rod 14 is reversing to the first working position, that is, when the baby stroller is switched to the forward use state, the reversing push rod 14 is turned backward until the first connecting part 141 is matched with the second connecting part 131 At this time, the reversing push rod 14 stops turning backwards, and is stably at the first working position, and the baby stroller is in the forward use state. When the reversing push rod 14 is reversing to the second working position, that is, when the baby stroller is converted to the reverse use state, the reversing push rod 14 is turned forward until the first connecting part 141 is matched with the third connecting part 181 At this time, the reversing push rod 14 stops turning forward, and is stably at the second working position, and the baby stroller is in the reverse use state.

The locking mechanism can be arranged between any two parts that are movably connected in the front bracket 11, the rear bracket 12, the auxiliary push rod 13, the seat post 15, the slider 16 and the connecting rod 17, as long as the positions of these two parts are locked, Just can make the position locking of whole trolley frame 1, the concrete structure of locking mechanism is not the technical point that this patent will protect, can adopt the structure in the prior art.

The stroller also includes an unlocking mechanism for driving the locking mechanism to be unlocked so that the stroller can be folded. The unlocking mechanism includes an unlocking strap 4, which is arranged on the seat post 15. As long as the unlocking strap 4 is pulled upwards, that is The locking mechanism can be unlocked, so that the stroller can be folded, and the way of unlocking the locking mechanism by unlocking the pull belt 4 can also adopt the technical solution in the prior art.

When the stroller was in the unfolded state, the locking mechanism was in the locked state, and the first rod 132 and the front bracket 11 extended along the same straight line, and the first rod 132, the front bracket 11, the rear bracket 12, the front wheel assembly 2 and the rear wheel An isosceles triangle structure is formed between the connecting lines of the centers of the components 3, the first rod 132 and the front support 11 are one waist of the isosceles triangle structure, and the rear support 12 is the other waist of the isosceles triangle structure.

Now, the reversing push rod 14 can be used at the first working position or the second working position. When the reversing push rod 14 was in the first working position, the reversing push rod 14 was connected with the secondary push rod 13, that is, the A connecting portion 141 is matched with the second connecting portion 131. At this time, the auxiliary push rod 13 and the reversing push rod 14 are in the same plane, and the auxiliary push rod 13 is located on the inner side of the reversing push rod 14, and the baby stroller is in the positive position. In the state of use, the child sitting and standing in the stroller is facing the same direction as the face of the person pushing the stroller, as shown in Figure 1 and Figure 2.

When the children's stroller is in the unfolded state, when it is necessary to push the children's stroller in the reverse direction, the cooperation between the first connecting part 141 and the second connecting part 131 is first disengaged, and then the reversing push rod 14 is wound around the auxiliary pusher. The rotating connection point of the rod 13 and the rear bracket 12 is overturned forward until the first connecting part 141 is matched with the third connecting part 181, that is, the reversing push rod 14 is connected with the handrail rod 18. At this time, the reversing push rod 14 Cannot continue to turn forward, but stably at the second working position, the baby stroller is in the reverse use state. The people pushing the stroller face each other, as shown in Figure 3.

When the stroller needs to be reversed from the reverse use state to the forward use state, as long as the cooperation between the first connecting part 141 and the third connecting part 181 is disengaged, then the reversing push rod 14 is rotated with the auxiliary push rod. The rotating connection point of the rod 13 and the rear bracket 12 is reversed until the first connecting portion 141 is matched with the second connecting portion 131 , even if the reversing push rod 14 is connected with the auxiliary push rod 13 .

When the stroller needs to be folded, the reversing push rod 14 is first switched to the first working position, that is, the stroller is in the forward use state, as shown in Figures 1 and 2; Belt 4 unlocks the locking mechanism. After the locking mechanism is unlocked, press down the reversing push rod 14, so that the auxiliary push rod 13 and the reversing push rod 14 are both turned down and close to the rear bracket 12, so that the front bracket 11 is turned backwards and rear The brackets 12 move closer together. During this process, the sliding member 16 slides forward along the length extension direction of the seat post 15, as shown in FIG. As shown, at this time, in each side of the left and right sides of the stroller frame 1, along the left and right directions, the rear bracket 12 is located between the auxiliary push rod 13 and the reversing push rod 14, which makes the folded children's push rod The structure of the car is compact, the volume is small, and it is easy to carry and store.

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 child stroller, comprising a stroller frame with unfolded and folded states, a front wheel assembly arranged at the bottom front portion of the stroller frame, a rear wheel assembly arranged at the bottom rear portion of the stroller frame A rear wheel assembly and a locking mechanism for locking the cart frame in deployment, wherein the cart frame includes: a front bracket for installing the front wheel assembly; a rear bracket for installing the rear wheel assembly; an auxiliary push rod, the lower part of the auxiliary push rod is respectively rotatably connected to the upper part of the front bracket and the upper part of the rear bracket; A reversing push rod, the lower part of the reversing push rod is at least rotatably connected to one of the two parts of the lower part of the auxiliary push rod and the upper part of the rear bracket, when the baby stroller is in the unfolded state , the reversing push rod has a first working position that gradually extends upward from front to rear and a second working position that gradually extends upward from rear to front; a seat post, the seat post is respectively rotatably connected to the front bracket and the rear bracket; a sliding part, the sliding part is slidably arranged on the seat post along the length extension direction of the seat post; A connecting rod, one end of the connecting rod is at least rotatably connected to one of the two parts of the front bracket and the auxiliary push rod, or one end of the connecting rod is at least connected to the rear bracket and the One of the two parts of the auxiliary push rod is rotatably connected, or one end of the connecting rod is rotatably connected to the front bracket or the rear bracket, and the other end of the connecting rod is connected to the slider. rotary connection; When the child stroller is folded, the auxiliary push rod and the reversing push rod are turned downwards to move closer to the rear support, and the front support is turned backward to move closer to the rear support. When the child pushes When the cart is in the folded state, the front bracket, the rear bracket, the auxiliary push rod and the reversing push rod are close to each other, in each side of the left and right sides of the cart frame, along the left and right direction , the rear brackets are located between the auxiliary push rod and the reversing push rod. 2. The children's stroller according to claim 1, characterized in that: the stroller frame further comprises a handrail, and the handrail is fixedly connected with the auxiliary push rod or the rear support, when the When the children's stroller is in the unfolded state, when the reversing push rod is in the first working position, the reversing push rod is connected with the auxiliary push rod, and the children's stroller is in the forward use state; when the children's push rod When the cart is in the unfolded state, when the reversing push rod is in the second working position, the reversing push rod is connected to the armrest bar, and the baby stroller is in the reverse use state. 3. The baby stroller according to claim 2, characterized in that: the reversing push rod is provided with a first connecting part, and the auxiliary push rod is provided with a second connecting part matched with the first connecting part. Two connecting parts, the armrest rod is provided with a third connecting part matched with the first connecting part, when the baby stroller is in the unfolded state and the reversing push rod is in the first working position, the The first connecting part cooperates with the second connecting part. When the baby stroller is in the unfolded state and the reversing push rod is in the second working position, the first connecting part is connected to the third connecting part. department to match. 4. The children's stroller according to claim 1, characterized in that: when the reversing push rod is in the first working position, the auxiliary push rod and the reversing push rod are located in the same plane, and the The secondary push rod is located inside the reversing push rod. 5. The children's stroller according to claim 1, characterized in that: the auxiliary push rod includes a first rod and a second rod fixedly connected, the lower part of the first rod is rotatably connected with the front bracket, The connection between the first rod and the second rod is rotatably connected to the rear bracket, when the stroller is in the unfolded state, the first rod and the front bracket extend along the same straight line, An isosceles triangle structure is formed between the first bar, the front bracket, the rear bracket, and the center line between the front wheel assembly and the rear wheel assembly, and the first bar and the front bracket is one waist of the isosceles triangle structure, and the rear support is the other waist of the isosceles triangle structure. 6. The children's stroller according to claim 1, characterized in that: the lower part of the auxiliary push rod, the lower part of the reversing push rod, and the upper part of the rear bracket are connected with the same axis for rotation. 7. The stroller for children according to claim 1, characterized in that: one end of the connecting rod, the upper part of the front bracket, and the lower part of the auxiliary push rod are connected with the same axis for rotation. 8. The stroller for children according to claim 2, characterized in that: the armrest bar is fixedly arranged on the upper part of the rear bracket. 9. The children's stroller according to claim 1, wherein the locking mechanism is arranged on any of the front bracket, the rear bracket, the auxiliary push rod, the connecting rod and the sliding member. Between two parts of an active connection. 10. The children's stroller according to claim 1, wherein the children's stroller further comprises an unlocking strap for unlocking the locking mechanism, and the unlocking strap is arranged on the seat post.