CN104057992B - Stroller - Google Patents

Abstract

The invention discloses a children's stroller. The stroller frame includes a push rod, a front bracket, a rear bracket whose upper part is rotatably connected to the front bracket, seat posts distributed along the front and rear directions, and one end rotatably connected to the front bracket. The strut on the push rod, the other end of the strut is rotatably connected to at least one part of the front bracket and the rear bracket, and the front part of the seat post is rotatably connected to the push rod Above, the rear part of the seat post is rotatably connected to the rear bracket, and the seat post is also rotatably connected to a slider, which is slidably arranged on the front bracket along the length extension direction of the front bracket. on the front bracket. When the stroller is in the folded state, the push rod, the front bracket, the rear bracket, the seat post and the support rod are all close to each other, and the folding and opening operations are very convenient. The folded stroller frame can stand on the ground and is flat Shaped structure, it takes up less space and is easy to store and carry.

Description

a stroller for children

technical field

The invention relates to a stroller for children.

Background technique

The children's stroller in the prior art includes a stroller frame with an unfolded position and a folded position, a wheel assembly arranged at the bottom of the stroller frame, and a wheel assembly arranged on the stroller frame to lock the stroller frame in the unfolded position the locking mechanism. There are many types of existing cart frames, and the number of rods is also different, and the connection relationship and connection position between the rods are different, so the folding principles and folding methods of the cart frames are also different.

Contents of the invention

The purpose of the present invention is to provide a child stroller with simple structure, convenient folding operation and small volume after folding.

In order to achieve the above object, the technical solution adopted by the present invention is: a children's stroller, including a foldable stroller frame, a wheel assembly arranged at the bottom of the stroller frame, and used to push the stroller frame The locking mechanism in the locked unfolded state, the cart frame includes a push rod, a front bracket, a rear bracket whose upper part is rotatably connected to the front bracket, seatposts distributed along the front and rear directions, and one end is rotatably connected to the front bracket. The strut on the push rod, the other end of the strut is rotatably connected to at least one part of the front bracket and the rear bracket, and the front part of the seat post is rotatably connected to the push rod Above, the rear part of the seat post is rotatably connected to the rear bracket, and the seat post is also rotatably connected to a slider, which is slidably arranged on the front bracket along the length extension direction of the front bracket. on the front bracket.

Preferably, the other end of the strut, the upper part of the rear bracket, and the upper part of the front bracket are rotatably connected at the same place.

Further preferably, the transition point between the support rod and the push rod is located above the transition point between the seat post and the push rod along the length extension direction of the push rod.

Preferably, the front portion of the seat post is rotatably connected to the push rod via a first shaft, the rear portion of the seat post is rotatably connected to the rear bracket via a second shaft, and the slider is via The third shaft is rotatably connected with the seat post, and the third shaft is located between the first shaft and the second shaft along the extending direction of the seat post.

Preferably, the sliding member is a slider or a sliding sleeve slidably sleeved on the front bracket.

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

Further preferably, the stroller frame includes side brackets on both sides, and the front bracket, the rear bracket, and the seat post are arranged between the side brackets on each side, and the stroller The frame also includes a cross bar connected between the front brackets on both sides or between the rear brackets on both sides, and an unlocking knob for unlocking the locking mechanism is arranged on the cross bar.

Preferably, the push rod includes an upper push rod, a lower push rod whose upper part is rotatably connected to the lower part of the upper push rod, and is arranged between the upper push rod and the lower push rod for locking the two push rod lock.

Further preferably, the push rod lock is an electric bell.

Further preferably, the front part of the seat post and the one end of the strut are respectively rotatably connected to the lower push rod.

Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art: In the children's stroller of the present invention, when the children's stroller is in the folded state, the push rod, the front bracket, the rear bracket, the seat post and the strut are all Close to each other, the folded trolley frame can stand on the ground independently, and has a flat structure, which occupies less space and is easy to store and carry. The children's stroller has a simple structure, fewer rods, simple folding and unfolding operations, and is convenient to use.

Description of drawings

Accompanying drawing 1 is the perspective view of the children's stroller of the present invention in the unfolded state;

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

Accompanying drawing 3 is a side view 1 of the children's stroller of the present invention in a half-folded state;

Accompanying drawing 4 is the side view 2 of the children's stroller of the present invention in a half-folded state;

Accompanying drawing 5 is the side view of the stroller of the present invention in a folded state;

Accompanying drawing 6 is the installation schematic diagram one of slide member among the present invention;

Accompanying drawing 7 is the installation schematic diagram II of the sliding part in the present invention.

Among them: 1. Push rod; 11. Upper push rod; 12. Lower push rod; 13. Push rod lock; 2. Front support; 3. Rear support; 4. Seat post; 41. First shaft; 42. Second Two shafts; 43, the third shaft; 5, struts; 6, slides; 61, sliders; 62, sliding sleeves; 7, crossbars; 8, unlocking knobs; 20, front wheels; 30, rear wheels.

detailed description

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Referring to the children's stroller shown in Figures 1 to 5, it includes a foldable stroller frame, a wheel assembly located at the bottom of the stroller frame, and a locking mechanism for locking the stroller frame in an unfolded state (in the figure not shown). As shown in the accompanying drawings, the cart frame includes a push rod 1, a front bracket 2, a rear bracket 3, a seat post 4, and a strut 5. The wheel assembly includes a front wheel 20 located at the bottom of the front support 2 and a rear wheel 30 located at the bottom of the rear support 3 .

The push rod 1 is foldable along its own length, including an upper push rod 11, a lower push rod 12 whose upper part is rotatably connected to the upper push rod 11, and a push rod lock between the upper push rod 11 and the lower push rod 12. Part 13, where the push rod locking part 13 is an electric bell located at the junction of the upper push rod 11 and the lower push rod 12.

The upper part of the front bracket 2 is rotatably connected with the upper part of the rear bracket 3, the seat post 4 extends along the front-rear direction, the front part of the seat post 4 is rotatably connected to the push rod 1 through the first shaft 41, and the rear part of the seat post 4 passes through The second shaft 42 is rotatably connected to the rear bracket 3 , and the seat post 4 is rotatably connected to the slider 6 through the third shaft 43 , the third shaft 43 is located between the first shaft 41 and the second shaft 42 on the seat post 4 between. The sliding member 6 is slidably arranged on the front bracket 2 along the length extension direction of the front bracket 2 . Slider 6 can adopt slide block 61 as shown in accompanying drawing 6, is provided with the slide rail that slide block 61 slides up and down on front support 2; Slider 6 also can adopt slide sleeve 62 as shown in accompanying drawing 7, slide The sleeve 62 is slidably sleeved on the front bracket 2 .

The upper end of the strut 5 is rotatably connected to the push rod 1, and the transition point between the strut 5 and the push rod 1 is located above the first shaft 41 on the push rod 1. Here, the lower end of the strut 5 is connected to the seat post 4 The front part of each is rotatably connected to the lower push rod 12; the lower end of the strut 5 is rotatably connected to at least one part of the front bracket 2 and the rear bracket 3. In this embodiment, the lower end of the strut 5, the upper part of the front bracket 2, and the upper part of the rear bracket 3 are rotatably connected at the same place, and four connecting rods are formed between the push rod 1, the seat post 4, the front bracket 2, and the strut 5. mechanism, a triangular structure is formed between the front bracket 2, the rear bracket 3 and the seatpost 4.

In this embodiment, the locking mechanism is arranged between the slider 6 and the front bracket 2, so as to lock the slider 6 on the front bracket 2. When the slider 6 and the front bracket 2 are fixed, the above-mentioned four-bar linkage , the above triangular structure can be in a stable state. When setting, the locking mechanism can be set to the form that the lock pin matches the lock hole, that is, the lock pin is set on one of the two parts of the front bracket 2 and the slider 6, and the other part is set for the above-mentioned The locking pin is correspondingly inserted into the locking hole, and of course the locking mechanism can also adopt other structural forms.

In this embodiment, the cart frame has side brackets on both sides, each side bracket includes a front bracket 2, a rear bracket 3 and a seat post 4, and a cross bar 7 is connected between the side brackets on both sides. The cross bar 7 is located between the tops of the front brackets 2 on both sides or between the tops of the rear brackets 3 on both sides, the cross bar 7 is provided with an unlocking knob 8, and a linkage is set between the unlocking knob 8 and the locking mechanism, so that When the unlocking knob 8 is rotated, the locking mechanism is unlocked to facilitate the folding operation of the cart. Here, a traction cable can be set between the unlocking knob 8 and the locking member (such as a lock pin) in the locking mechanism, and when the unlocking knob 8 is rotated, the locking member in the locking mechanism is driven out of the locked state by the traction cable to unlock the locking mechanism .

Referring to Fig. 1 and Fig. 2, when the cart frame is unfolded, the locking mechanism is locked, the slider 6 is relatively fixed to the front bracket 2, and a stable structure is formed between the push rod 1, the front bracket 2, the seat post 4 and the strut bar 5. A four-bar linkage mechanism, and a stable triangular mechanism is formed between the front bracket 2, the rear bracket 3 and the seat post 4.

When the stroller frame needs to be folded, as shown in Fig. 3, firstly, the push rod 1 can be folded along the length direction, that is, the electric bell as the push rod lock 13 will be unlocked, and the upper push rod 11 can be turned forward to make it relatively The lower push rod 12 is closed and folded. Next, as shown in Figure 4, the unlocking knob 8 is rotated to unlock the locking mechanism, and the slider 6 can slide relative to the front bracket 2. At this time, the push rod 1 is pushed forward, or the cross bar 7 is picked up. Under the action of gravity of the rod 1, the push rod 1 moves forward, driving the front part of the seat post 4 to move forward, the slider 6 slides down along the front bracket 2, drives the rear bracket 3 to draw forward toward the front bracket 2, and simultaneously drives In the four-bar linkage mechanism, the rods rotate relative to each other and move closer to each other, finally making the push rod 1, the seat post 4, the front bracket 2, the strut 5 and the rear bracket 3 close together to form a folded state as shown in FIG. 5 . In this state, the front wheels 20 and the lower push rod 12 are jointly supported on the ground so that the folded cart frame can stand on the ground.

When the cart frame needs to be opened, the upper push rod 11 is first rotated relative to the lower push rod 12 so that the push rod 1 is launched and the push rod locking member 13 is locked, and then the push rod 1 is pulled backward, and the push rod 1 drives the seat The front part of the rod 4 moves backward, thereby driving the sliding member 6 to slide upward along the front bracket 2, and the rods in the four-bar linkage mechanism rotate relative to each other to spread out, and the seat post 4 drives the rear bracket 3 away from the front bracket 2 to move backward. Rotate and expand relative to the front bracket 2. Until the rods are mutually unfolded, or the sliding member 6 slides to the locking position on the front bracket 2, the locking mechanism is locked, and the cart frame can be in a stable unfolded state, as shown in Fig. 1 and Fig. 2 .

In summary, the children's stroller of the present invention has a simple structure, a small number of rods, simple and convenient folding and unfolding operations, and the folded stroller frame has a flat structure with a compact structure and a small volume, and Able to stand on the ground.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. A child stroller, comprising a foldable stroller frame, a wheel assembly located at the bottom of the stroller frame, and a locking mechanism in an unfolded state for locking the stroller frame, its features In that: the cart frame includes a push rod, a front bracket, a rear bracket whose upper part is rotatably connected to the front bracket, seatposts distributed along the front and rear directions, and a strut with one end rotatably connected to the push rod , the other end of the strut is rotatably connected to at least one part of the front bracket and the rear bracket, the front part of the seat post is rotatably connected to the push rod, and the seat post The rear part is rotatably connected to the rear bracket, and the seat post is also rotatably connected to a slider, and the slider is slidably arranged on the front bracket along the length extension direction of the front bracket, so When the vehicle frame is folded, the struts are turned forward and the slider slides down along the front bracket, so that the front bracket, rear bracket, seat post, strut and push rod are gradually gathered together. 2. The stroller for children according to claim 1, characterized in that: the other end of the strut, the upper part of the rear bracket, and the upper part of the front bracket are rotatably connected at the same place. 3. The stroller according to claim 1 or 2, characterized in that: the transition point between the support rod and the push rod is located between the seat post and the push rod along the length extension direction of the push rod. above the transition point of the rod. 4. The stroller of claim 1, wherein the front portion of the seat post is rotatably connected to the push rod via a first axis, and the rear portion of the seat post is rotatable via a second axis ground connected to the rear bracket, the sliding member is rotatably connected to the seat post through a third shaft, and the third shaft is located between the first shaft and the second shaft along the extending direction of the seat post. between the axes. 5. The stroller for children according to claim 1, wherein the sliding member is a sliding block or a sliding sleeve slidably sleeved on the front bracket. 6. The stroller according to claim 1 or 5, wherein the locking mechanism is arranged between the slider and the front bracket for locking the slider on the front bracket . 7. The children's stroller according to claim 6, wherein the stroller frame includes side brackets on both sides, and the front bracket, the side brackets on each side are provided between the side brackets The rear bracket, the seat post, the cart frame also includes a cross bar connected between the front brackets on both sides or between the rear brackets on both sides, and the cross bar is provided with a locking Unlock knob for mechanism unlock. 8. The children's stroller according to claim 1, wherein the push rod comprises an upper push rod, a lower push rod whose upper part is rotatably connected to the lower part of the upper push rod, and a lower push rod arranged on the upper push rod A push rod lock for locking the two with the lower push rod. 9. The stroller for children according to claim 8, characterized in that: the locking part of the push rod is an electric bell. 10. The stroller for children according to claim 8, characterized in that: the front part of the seat post and the one end of the support rod are respectively rotatably connected to the lower push rod.