CN110481623A - Folding children's cart - Google Patents

Abstract

The invention discloses a folding children's stroller, comprising a push rod, a front support, a rear support, and an upper surrounding rod, the lower part of which is rotatably connected with the lower part of the push rod; Relatively rotatable and relatively slidable connection, the side strut is rotatably connected with the rear bracket; the seat post is rotatably connected with the front bracket, during the transition from the open state to the folded state of the folding stroller, the seat post The rear of the side struts is directly or indirectly carried by the lower part of the side struts. When folding, the upper part of the side stay slides along the upper wall while the side stay is rotating, and the lower part of the side stay drives the seat post to rotate. After the whole vehicle is folded, it is small in size, easy to carry, simple in structure and ingenious in concept. , easy to operate.

Description

folding stroller

technical field

The present invention relates to a folding children's stroller.

Background technique

Folding strollers are widely used as a means of transportation for infants. It is easy to fold, and the volume is small after folding, which makes it easy to store and carry, which is the demand of consumers for the use of folding strollers. The folding stroller in the prior art generally has a complex structure, and is bulky and bulky after being folded, which is inconvenient to carry and takes up space for storage.

SUMMARY OF THE INVENTION

In order to solve the above problems, the purpose of the present invention is to provide a folding stroller.

In order to achieve the above purpose, the technical solution adopted in the present invention is: a folding baby stroller, which has an open state and a folded state. The folding baby stroller includes a push rod, a front bracket connected to the front wheel in rotation at the bottom, and a bottom connected with a push rod. The rear bracket of the rear wheel, any two of the upper part of the front bracket, the upper part of the rear bracket and the lower part of the push rod are connected in rotation, and the other one is connected in rotation with at least one of the two, Folding stroller also includes

The upper surrounding rod, the lower part of which is rotatably connected with the lower part of the push rod;

a side strut, the upper part of which is connected with the upper surrounding rod in a rotatable and slidable manner, and the side strut is rotatably connected with the rear bracket;

The seat post is rotatably connected with the front bracket. During the transition of the folding stroller from the open state to the folded state, the rear part of the seat post is directly or indirectly driven by the lower part of the side stay.

Further, a sliding sleeve is slidably connected to the upper surrounding rod, and the upper part of the side brace is rotatably connected to the sliding sleeve.

Optionally, the folding stroller also includes a basket rod rotatably connected to the rear bracket, the front part of the basket rod is rotatably connected to the rear part of the seat post, and the lower part of the side support rod and the basket rod can both be opposite to each other. Rotationally and relatively slidingly connected. Specifically, the basket rod is provided with a chute, and the lower part of the side strut has a pin shaft that can slide along the chute and can rotate in the chute.

Optionally, the lower portion of the side stay is pivotally connected to the rear portion of the seat post.

Further, the folding stroller also includes an armrest rotatably connected to the front bracket at the rear, a connecting rod rotatably connected to the armrest at the upper part and the seat post at the lower part.

Further, the upper part of the front bracket has a joint extending forward, and the armrest is connected to the joint.

Further, the folding stroller also includes an upper push rod whose lower part is rotatably connected with the upper part of the push rod.

Further, the push rod, the upper surrounding rod, the front bracket and the rear bracket are connected in rotation on the same rotation axis.

Further, when the folding stroller is in the open state, the push rod is above the rear bracket, and the folding stroller also has a reverse working state. When the folding stroller is in the reverse working state, the push rod rotates to the front bracket. above.

Due to the adoption of the above technical solution, when the folding stroller is folded, the upper part of the side brace slides along the upper fence while the side brace is rotating, and the lower part of the side brace drives the seat post to rotate. , Small size, easy to carry, simple structure, sophisticated conception, easy to operate.

Description of drawings

1 is a schematic side view of a folding stroller in an open state according to an embodiment of the present invention;

Accompanying drawing 2 is the three-dimensional structure schematic diagram of accompanying drawing 1;

Accompanying drawing 3 is the side structure schematic diagram of the folding stroller shown in accompanying drawing 1 in the reverse state;

Accompanying drawing 4 is the three-dimensional structure schematic diagram of accompanying drawing 3;

Accompanying drawing 5 is the side structure schematic diagram of the folding stroller shown in accompanying drawing 1 during the folding process;

Accompanying drawing 6 is the three-dimensional structure schematic diagram of accompanying drawing 5;

7 is a schematic side view of the folding stroller shown in FIG. 1 when it is in a folded state;

Accompanying drawing 8 is the three-dimensional structure schematic diagram of accompanying drawing 7;

9 is a schematic side view of the structure of the folding stroller in an open state according to another embodiment of the present invention.

The symbols in the figure are:

1. Upper push rod; 2. Push rod; 3. Side stay; 4. Upper wall rod; 5. Slide sleeve; 6. Front bracket; 7. Rear bracket; 8. Seat post; 9. Basket bar; 10 , connecting rod; 11, armrest; 12, chute; 13, joint; 14, front wheel; 15, rear wheel; 16, connecting piece.

Detailed ways

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art.

Example 1

It can be seen from the schematic structural diagrams of FIG. 1 to FIG. 8 that the folding baby stroller in this embodiment has an open state and a folded state, and the folding baby stroller includes a push rod 2, a front bracket 6, a rear bracket 7, an upper Surrounding rod 4, side strut 3, seat post 8, wherein any two of the upper part of the front bracket 6, the upper part of the rear bracket 7 and the lower part of the push rod 2 are rotatably connected, and the other one is connected with the said At least one of the two is connected in rotation, preferably: the bottom of the front bracket 6 is connected with the front wheel 14, and the upper part of the front bracket 6 is connected with the lower part of the push rod 2 in rotation; the bottom of the rear bracket 7 is connected with a rear wheel 15, and the upper part of the rear bracket 7 is rotatably connected with the front bracket 6 or the push rod 2.

The lower part of the upper surrounding rod 4 is rotatably connected with the lower part of the push rod 2 . In this embodiment, the push rod 2, the upper surrounding rod 4, the front bracket 6, and the rear bracket 7 are rotatably connected on the same rotation axis, as shown in FIG. 1 as the rotation axis a. Preferably, the upper enclosure rod 4 is located inside the push rod 2, and a plane extending in the up-down direction and the front-rear direction is provided, and the projections of the upper enclosure rod 4 and the push rod 2 on the plane are substantially coincident.

The upper part of the side support rod 3 is connected with the upper surrounding rod 4 in a relatively rotatable and relatively slidable manner. The sliding sleeve 5 is rotatably connected through the rotating shaft b, and the sliding sleeve 5 is located above the rotating shaft a. The side stay 3 and the rear bracket 7 are rotatably connected through a rotating shaft c, specifically, the rotating shaft c is located between the rotating shaft a and the rear wheel 15 .

The seat post 8 is rotatably connected to the front bracket 6 through a rotating shaft d, specifically, the rotating shaft d is located between the rotating shaft a and the front wheel 14 . During the transition of the folding stroller from the open state to the folded state, the rear part of the seat post 8 is directly or indirectly driven by the lower part of the side stay 3 .

In this embodiment, during the transition of the folding stroller from the open state to the folded state, the rear part of the seat post 8 is indirectly driven by the lower part of the side stay 3 . Specifically, the folding stroller also includes a basket rod 9, which is rotatably connected to the rear bracket 7 through a rotating shaft e. The rotating shaft e is located between the rotating shaft c and the rear wheel 15. The front part of the basket rod 9 is connected to the seat post 8. The rear part is rotatably connected through the rotating shaft f, the rotating shaft f is located behind the rotating shaft d, and is located in front of the rotating shaft e, the lower part of the side support rod 3 and the basket rod 9 can be relatively rotatable and relatively slidable. The specific structure adopted is that the basket rod 9 is provided with a chute 12, the lower part of the side strut 3 has a pin shaft that can slide along the chute 12 and can rotate in the chute 12, and the pin shaft is set as shown in FIG. 1 . Shown at g, g is located below the rotation axis c.

The folding stroller in this embodiment also includes an armrest 11. In a more preferred embodiment, the rear part of the armrest 11 is rotatably connected to the front bracket 6 through a rotating shaft h, and the armrest 11 is connected to a connecting rod through a rotating shaft i. 10 is rotatably connected, and the lower part of the connecting rod 10 is rotatably connected with the seat post 8 through the rotating shaft j, so that the cart can drive the armrest 11 to be folded in linkage when the cart is folded, and the whole vehicle is smaller after folding. Specifically, the rotation axis i is located behind the rotation axis h, and the rotation axis j is located between the rotation axis d and the rotation axis f. In this embodiment, the specific connection structure of the armrest 11 and the front bracket 6 is that the upper part of the front bracket 6 has a joint 13 extending forward, and the armrest 11 is rotatably connected to the joint 13 . In this embodiment, the specific connection structure of the armrest 11 and the connecting rod 10 is as follows: the rear part of the armrest 11 is fixedly connected with a connecting piece 16 extending backward, and the upper end of the connecting rod 10 is connected with the connecting piece 16. When the baby stroller is folded In the open state, the connecting piece 16 is located on the inner side of the armrest 11 and the joint 13, and the inner side here refers to the side facing the inside of the cart.

In this embodiment, the folding stroller further includes an upper push rod 1 , the lower part of which is rotatably connected to the upper part of the push rod 2 through a rotating shaft k.

In a more preferred embodiment, the folding baby stroller is a reversible stroller, and the push rod 2 is rotatably located above the front bracket 6 or above the rear bracket 7. When the stroller is in the above-mentioned open state , the push rod 2 is located above the rear bracket 7, and can be pushed forward at this time, that is, when pushing, the person who pushes the cart faces the same direction as the child riding in the cart, and the cart also has a reverse working state , in the reverse working state, the push rod 2 is located above the front bracket 6, and it can be pushed in the reverse direction at this time, that is, when the cart is pushed, the person pushing the cart and the child riding in the cart are facing in the opposite direction, Specifically, it is face-to-face, which can easily check the status of children in the car; .

The above-mentioned upper push rod 1, upper surrounding rod 4, armrest 11, and basket rod 9 are all U-shaped, and the above-mentioned push rod 2, side strut 3, front bracket 6, rear bracket 7, seat post 8, connecting rod 10 There are two respectively and are symmetrically arranged on the left and right sides of the cart.

working principle:

When the folding stroller needs to be folded in the open state, turn the upper push rod 1 forward and downward to make it close to the push rod 2, and then turn the push rod 2 and the upper surrounding rod 4 backward and downward; the upper surrounding rod 4, side The strut 3, the sliding sleeve 5 and the rear bracket 7 constitute a crank-slider mechanism. When the upper surrounding rod 4 rotates and approaches the rear bracket 7, the upper part of the side strut 3 is driven to rotate backward, and the sliding sleeve 5 rotates along the side strut. 3 moves upward; the side strut 3, the rear bracket 7, the basket rod 9 and the chute 12 constitute another crank-slider mechanism, when the lower part of the side strut 3 rotates forward, the basket rod 9 is pryed to rotate, and The pin connected to the lower part of the side strut 3 slides forward along the chute 12; the front bracket 6, the rear bracket 7, the seat post 8 and the basket rod 9 form a four-bar linkage mechanism, and the front part of the basket rod 9 drives the The rear part of the seat post 8 is rotated upwards, so that the front bracket 6 and the rear bracket 7 are rotated and moved closer to each other; The armrest 11 and the connecting rod 10 are rotated to approach the front bracket 6 . Until all the parts are folded, the whole vehicle is folded.

When the folding baby stroller needs to be folded in the reverse state, firstly turn the push rod 2 backward, the folding baby stroller is switched to the punching state first, and then fold it according to the above steps.

Embodiment 2

Referring to FIG. 9 , the structure of the folding stroller in this embodiment is basically the same as that in the first embodiment, and the difference between the folding stroller in this embodiment and the first embodiment is only: in this embodiment, the During the transition of the folding stroller from the open state to the folded state, the rear part of the seat post 8 is directly driven by the lower part of the side stay 3 .

Specifically, compared with the first embodiment, the basket rod 9 is not provided in this embodiment, and the lower part of the side stay 3 is directly connected to the rear of the seat post 8 through a rotating shaft 1, and the rotating shaft 1 is located between the rotating shaft d and the rotating shaft c. between.

working principle:

When the folding stroller needs to be folded in the open state, turn the upper push rod 1 forward and downward to make it close to the push rod 2, and then turn the push rod 2 and the upper surrounding rod 4 backward and downward; the upper surrounding rod 4, side The strut 3, the sliding sleeve 5 and the rear bracket 7 constitute a crank-slider mechanism. When the upper surrounding rod 4 rotates and approaches the rear bracket 7, the upper part of the side strut 3 is driven to rotate backward, and the sliding sleeve 5 rotates along the side strut. 3 moves upward; the front bracket 6, the rear bracket 7, the seat post 8 and the side stay 3 form a four-bar linkage mechanism, and the lower part of the side stay 3 drives the rear part of the seat post 8 to rotate upward, so that the front bracket 6 and the rear The brackets 7 rotate close to each other; the front bracket 6 , the seat post 8 , the connecting rod 10 , and the armrest 11 constitute another four-bar linkage mechanism. Until all the parts are folded, the whole vehicle is folded.

When the folding baby stroller needs to be folded in the reverse state, firstly turn the push rod 2 backward, the folding baby stroller is switched to the punching state first, and then fold it according to the above steps.

In the folding stroller in the above-mentioned embodiment, when the side brace is rotated, the upper part of the side brace slides along the upper wall, and the lower part of the side brace directly or indirectly drives the seat post to rotate, and the whole vehicle is completed. After being folded, the utility model has the advantages of small size, easy to carry, simple structure, sophisticated conception and convenient operation.

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 kind of folding children's cart has opening state and folded state, the folding children's cart includes push rod (2), bottom Portion is connected with the fore-stock (6) of front-wheel (14), bottom is connected with the after-poppets (7) of rear-wheel (15), the fore-stock (6) it is upper Both any rotate connection, and remaining in portion, the top of the after-poppet (7) and this three of the lower part of the push rod (2) One is connect at least one of both described rotate, it is characterised in that: the folding children's cart further includes

Upper pole (4), its underpart rotate with the lower part of the push rod (2) and connect；

Side brace (3), upper part can either be relatively rotated with the upper pole (4) and opposite can be slidably connected, the side stay Bar (3) rotates with the after-poppet (7) and connect；

Seat bar (8), rotates with the fore-stock (6) and connect, in the folding children's cart from opening state to rugosity During state transition, the rear portion of this bar (8) is directly or indirectly driven by the lower part of the side brace (3).

2. folding children's cart according to claim 1, it is characterised in that: slidably connected on the upper pole (4) Sliding sleeve (5), the top of the side brace (3) rotate with the sliding sleeve (5) and connect.

3. folding children's cart according to claim 1, it is characterised in that: the folding children's cart further includes and institute It states after-poppet (7) to rotate the basket rod (9) of connection, the rear portion of the front of the basket rod (9) and the seat bar (8) rotates company It connects, the lower part of the side brace (3) can either relatively rotate with basket rod (9) and opposite can be slidably connected.

4. folding children's cart according to claim 3, it is characterised in that: offer sliding slot on the basket rod (9) (12), the lower part of the side brace (3), which has, can slide along the sliding slot (12) and can turn in the sliding slot (12) Dynamic pin shaft.

5. folding children's cart according to claim 1, it is characterised in that: the lower part of the side brace (3) and the seat The rear portion of bar (8) rotates connection.

6. folding children's cart according to claim 1, it is characterised in that: the folding children's cart further includes rear portion With the fore-stock (6) rotate the handrail (11) of connection, top and the handrail (11) rotate connection and lower part with it is described Seat bar (8) rotates the connecting rod (10) of connection.

7. folding children's cart according to claim 6, it is characterised in that: the top of the fore-stock (6) have to The connector (13) that front extends, the handrail (11) are connected on the connector (13).

8. folding children's cart according to claim 1, it is characterised in that: the folding children's cart further includes lower part Rotate the upper push-rod (1) of connection with the top of the push rod (2).

9. folding children's cart according to claim 1, it is characterised in that: the push rod (2), upper pole (4), preceding branch Frame (6), after-poppet (7) are rotatablely connected on same pivot center.

10. folding children's cart according to claim 1, it is characterised in that: when the folding children's cart is in open shape When state, the push rod (2) is in the top of the after-poppet (7)；The folding children's cart also has reverse operation state, When the folding children's cart is in reverse operation state, the push rod (2) turns to the top of the fore-stock (6).