CN104015775B - stroller - Google Patents

Abstract

The invention discloses a stroller for children, which comprises a stroller frame with an unfolded state and a folded state, a wheel assembly arranged at the bottom of the pushcart frame, and a wheel assembly arranged on the pushcart frame for using the The trolley frame is locked in the locking mechanism in the unfolded state, the trolley frame includes a push rod, a front bracket whose upper part is rotatably connected with the lower part of the push rod, and an upper part that is rotatably connected between the front bracket and the push rod A rear bracket on at least one part of the bar, a seat post whose front portion is rotatably connected to the front bracket, and the stroller frame also includes a first swing link and a second swing link, and the first swing link is rotatably connected to the rear bracket, one end of the first swing rod is rotatably connected to the seat post, and the other end of the first swing rod is rotatably connected to one end of the second swing rod, The other end of the second swing link is rotatably connected to the push rod. After being folded, the children's stroller can stand on the ground independently, has a flat and compact structure, and is convenient to use.

Description

stroller

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 object of the present invention is to provide a child stroller with simple structure and convenient folding and unfolding operations.

In order to achieve the above object, the technical scheme adopted in the present invention is: A stroller for children, comprising a stroller frame with unfolded state and folded state, a wheel assembly arranged at the bottom of the stroller frame, and a wheel assembly arranged on the stroller frame for turning the stroller frame A locking mechanism locked in an unfolded state, the cart frame includes a push rod, a front bracket whose upper part is rotatably connected to the lower part of the push rod, and an upper part that is rotatably connected to at least one of the front bracket and the push rod The rear bracket on the component, the seat post that the front part is connected to the front bracket in rotation, and the cart frame also includes a first swing rod and a second swing rod, and the first swing rod is connected to the On the rear bracket, one end of the first swing link is rotatably connected to the seatpost, the other end of the first swing link is rotatably connected to one end of the second swing link, and the second swing link The other end of the rod is rotatably connected to the push rod.

Preferably, the lower part of the push rod, the upper part of the front bracket, and the upper part of the rear bracket are rotatably connected to each other.

Preferably, the locking mechanism is arranged between the seatpost and the first swing link for locking them.

Preferably, the first swing link includes a first rod part and a second rod part, and the first rod part and the second rod part are fixedly connected in the form of L type.

Further preferably, when the stroller frame is in an unfolded state, the first rod portion and the seat post are parallel to each other.

Further preferably, the first rod part is rotatably connected to the seat post through a first shaft, and the second rod part is rotatably connected to the rear bracket through a second shaft. When the stroller frame is in the In the unfolded state, the second shaft is located above the first shaft.

Further preferably, the first rod part is rotatably connected to the seat post, and the second rod part is rotatably connected to the rear bracket and the second swing rod.

Preferably, after the stroller frame is unfolded, the first swing link and the second swing link are fixedly supported between the seat post, the rear bracket and the push rod.

Preferably, a four-bar linkage mechanism is formed among the push rod, the rear bracket, the first swing link and the second swing link.

Further preferably, another four-bar linkage mechanism is formed among the front bracket, the seatpost, the first swing link and the rear bracket.

Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art: when the children's stroller of the present invention is in the folded state, the push rod, the front support, the rear support, the seat post, the first swing bar, the second balance Close to each other, the folded trolley frame can stand on the ground independently, and has a flat and compact 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

Attached picture 1 It is a side view of the children's stroller (in the unfolded state) of the present invention;

Attached picture 2 It is a side view of the children's stroller (in a half-folded state) of the present invention;

Attached picture 3 It is a side view of the children's stroller (in a folded state) of the present invention;

in: 1 , putter; 2 , front bracket; 3 , rear support; 4 , seat post; 5 , the first pendulum; 51 , the first rod; 52 , the second pole; 6 , the second pole; 7 , the first axis; 8 , the second axis; 10 , front wheel; 20 ,rear wheel.

detailed description

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

The following definitions of direction are all defined by the direction observed by the child sitting and standing on the stroller when the stroller is installed and in use. 1 to map 3 The left and right directions shown in , where the left is the front, the right is the rear, and the up and down directions are the up and down directions in the drawings.

see picture 1 to map 3 The children's stroller shown includes a stroller frame having an unfolded state and a folded state, a wheel assembly arranged at the bottom of the stroller frame, and a wheel assembly arranged on the stroller frame for locking the stroller frame in the unfolded state. locking mechanism (not shown). The cart frame includes push rods 1 , front bracket 2 , rear bracket 3 , seat post 4 , the first pendulum 5 and second pendulum 6 .

putter 1 lower part and front bracket 2 The upper phase of the swivel connection, the rear bracket 3 The upper part is pivotally connected to the push rod 1 with front bracket 2 on at least one component, in this embodiment, the push rod 1 lower part, front bracket 2 upper and rear brackets 3 The upper parts are rotationally connected together. wheel assembly including front wheel 10 and rear wheels 20 , front wheel 10 Installed on the front bracket 2 lower part of the rear wheel 20 Installed on the rear bracket 3 the lower part.

seat post 4 The front part is pivotally connected to the front bracket 2 , the transfer point is located on the front bracket 2 with putter 1 , rear bracket 3 Below the transition point between. first swing lever 5 The middle part is pivotally connected to the rear bracket 3 up, first swing lever 5 One end is pivotally attached to the seatpost 4 on, the other end of which is connected to the second pendulum 6 One end of the pivot connection, the second pendulum 6 The other end is pivotally connected to the push rod 1 superior.

In this embodiment, the first pendulum 5 set up L type, which includes a fixedly connected or integrally arranged first rod 51 and second shaft 52 , the first shaft 51 through the first axis 7 pivotally attached to the seatpost 4 upper, second shaft 52 through the second axis 8 pivotally attached to the rear bracket 3 upper, second shaft 52 the outer end of the second pendulum 6 Phase rotation connection, when the cart frame is in the unfolded state, the second axis 8 on the first axis 7 above, and the first rod 51 with seatpost 4 parallel to each other. This is mainly determined in order to ensure that the rods are in a suitable position in the unfolded state of the cart frame. Of course, the first pendulum 5 Can also be made straight so that it fits 4 , and rear bracket 3 , and the second pendulum 6 The transition points are on the same straight line.

In this embodiment, the locking mechanism is located on the seatpost 4 with the first pendulum 5 There is a locking piece (not shown in the figure) for locking the two. When the stroller frame is unfolded, the locking piece can make the stroller frame be in a stable unfolded state. Of course, the locking mechanism can also be arranged in other structural forms or in other positions, as long as the rods are fixed to each other when the cart frame is unfolded.

When the children's stroller of this embodiment is in use, the stroller frame is in an unfolded state, as shown in the figure 1 shown, front bracket 2 , rear bracket 3 and putter 1 mutual spread, seat post 4 Extending in the front-to-back direction, the locking mechanism is locked, and the first swing lever 5 with the second pendulum 6 fixed to the seat post 4 , rear bracket 3 and putter 1 between. putter 1 , rear bracket 3 , the first pendulum 5 and second pendulum 6 A four-bar linkage mechanism is formed between the front brackets 2 , seat post 4 , the first pendulum 5 and rear bracket 3 Another four-bar linkage is formed between them.

When the cart frame needs to be folded, as shown in the figure 2 shown, first unlock the locking mechanism, push the lever 1 rear facing bracket 3 Rotate downward in the direction to drive the second pendulum 6 and the first pendulum 5 downward movement while the first swing lever 5 drive seat post 4 the rear of the seatpost moves upwards, and the seatpost 4 the front relative to the front bracket 2 Rotate to drive the front bracket 2 progressively towards the rear bracket 3 gather. final putt 1 , front bracket 2 , rear bracket 3 , seat post 4 and the first pendulum 5 , the second pendulum 6 They are all folded together, the folded stroller is as shown in the figure 3 shown. The folded trolley can stand independently on the ground, and has a flat and compact structure, occupies less space, and is easy to store and carry. Locking mechanism can be set to lift the seat post 4 The rear part of the structure is unlocked, so that when the stroller frame is folded, the seat post is directly pulled 4 The rear part of the stroller can be unlocked and folded, and the folding operation is more convenient.

When the cart frame needs to be expanded, the push rod 1 Lift up so that it faces the rear bracket 3 turn, on the second pendulum 6 , the first pendulum 5 and seat post 4 Driven by the front bracket 2 with rear bracket 3 Rotate between each other and unfold along the front-back direction, the locking mechanism is locked, and the cart is in a stable unfolded state.

To sum up, the children's stroller of the present invention has a simple structure, fewer rods, and convenient folding and unfolding operations. The folded stroller has a compact structure, takes up less space, and is easy to carry and store.

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. null1. a children trolley，Including the stroller frame with deployed condition and folded state、It is located at the wheel assembly bottom described stroller frame、It is located in described stroller frame the locking mechanism for described stroller frame being locked in deployed condition，It is characterized in that: described stroller frame includes push rod、Top rotates with the bottom of described push rod the fore-stock being connected、Top is connected to described fore-stock and the after-poppet at least one parts in described push rod rotationally、The anterior seat bar being connected to rotationally on described fore-stock，Described stroller frame also includes the first fork and the second fork，Described first fork is connected on described after-poppet rotationally，One end of described first fork is connected on described seat bar rotationally，The other end of described first fork rotates with one end of described second fork and is connected，The other end of described second fork is connected on described push rod rotationally.
2. Children trolley the most according to claim 1, it is characterised in that: the bottom of described push rod, the top of described fore-stock, the top of described after-poppet are mutually pivotally connected together.
3. Children trolley the most according to claim 1, it is characterised in that: described locking mechanism is located between described seat bar and described first fork for both being locked.
4. Children trolley the most according to claim 1, it is characterised in that: described first fork includes the first bar portion and the second bar portion, and described first bar portion is fixedly connected L-shaped with the second bar portion.
5. Children trolley the most according to claim 4, it is characterised in that: when described stroller frame is in deployed condition, described first bar portion is parallel to each other with described seat bar.
6. Children trolley the most according to claim 4, it is characterized in that: described first bar portion is rotated with described seat bar by the first axle and is connected, described second bar portion is rotated with described after-poppet by the second axle and is connected, when described stroller frame is in deployed condition, described second axle is positioned at above described first axle.
7. Children trolley the most according to claim 4, it is characterised in that: described first bar portion rotates with described seat bar and is connected, and described second bar portion rotates be connected with described after-poppet and the second fork.
8. Children trolley the most according to claim 1, it is characterised in that: after described stroller frame is launched, described first fork and described second fork are fixedly supported between described seat bar, described after-poppet and described push rod.
9. Children trolley the most according to claim 1, it is characterised in that: form quadric chain between described push rod, described after-poppet, described first fork and described second fork.
10. Children trolley the most according to claim 9, it is characterised in that: described fore-stock, described seat bar, between described first fork and described after-poppet, form another quadric chain.