CN106627717B - a children's stroller - Google Patents

Abstract

The invention relates to a children's stroller, comprising a stroller frame having an unfolded state and a folded state, a locking mechanism for locking the stroller frame in the unfolded state, and the stroller frame includes side brackets located on both sides of the stroller The side bracket includes a front bracket, a rear bracket, a push rod and a seat post, the rear bracket includes an upper bracket and a lower bracket that are rotatably connected to each other, and the upper bracket is respectively rotatably connected with the upper end of the front bracket and the lower end of the push rod, and the side bracket also It includes a first swing rod, a second swing rod, and a third swing rod. The seat rod is rotatably connected to the upper bracket, the two ends of the first swing rod are respectively connected to the push rod and the seat rod in rotation, and the two ends of the second swing rod It is respectively rotatably connected with the front bracket and the front part of the seat post, and the two ends of the third swing rod are respectively rotatably connected with the rear part of the seat post and the lower bracket. The folding operation of the children's stroller of the invention is simple and convenient, the parts of the folded frame fit well, the gap between them is small, the folded frame is small in size, can stand on its own and is easy to carry.

Description

a stroller for children

technical field

The invention relates to a stroller for children.

Background technique

At present, children's strollers in the prior art include 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, and are used to lock the stroller frame in the unfolded state. The locking mechanism in the state, the seat bag assembly that can be detachably grafted on the cart frame. In order to facilitate the packaging, transportation and storage of children's strollers, children's strollers can generally be folded. Therefore, simple structure, convenient operation, low cost, and easy folding operation are the goals pursued by designers. The key to market competitiveness of cart products.

SUMMARY OF THE INVENTION

The technical problem to be solved by the invention is to provide a new stroller for children.

In order to solve the above technical problems, a kind of technical scheme that the present invention adopts is:

A stroller for children, comprising a stroller frame having an unfolded state and a folded state, a locking mechanism for locking the stroller frame in the unfolded state, the stroller frame includes side brackets located on both sides of the stroller, the side brackets Including the front bracket with the front wheel assembly installed at the lower part, the rear bracket with the rear wheel assembly installed at the lower part, push rod and seat post,

The rear support includes an upper support and a lower support which are rotatably connected, the rear wheel assembly is arranged at the lower end of the lower support, and the upper support is respectively rotatably connected with the upper end of the front support and the lower end of the push rod;

The side bracket also includes a first swing rod, a second swing rod, and a third swing rod. The seat rod is rotatably connected with the upper bracket. The two ends are respectively rotatably connected with the front bracket and the front part of the seat post, and the two ends of the third swing link are respectively rotatably connected with the rear part of the seat post and the lower support.

Further, the rotation axis lines between the two rotatably connected parts are arranged in parallel, and both extend horizontally along the left and right directions of the cart. In the unfolded state, the rotation axis between the front bracket and the second swing bar The line is located at the front and lower side of the axis of rotation between the front bracket and the upper bracket, and the axis of rotation between the push rod and the first swing bar is located at the rear and upper side of the axis of rotation between the push rod and the upper bracket. The rotation axis between the rod and the upper bracket is located between the rotation axis between the seat rod and the second swing rod, the seat rod and the third swing rod; the rotation axis between the lower bracket and the upper bracket is located between the lower bracket Above the axis of rotation between the third swing link and below the axis of rotation between the seat post and the upper bracket.

Further, the upper bracket has a first rod and a second rod intersecting, the two ends of the first rod are respectively connected to the upper end of the front bracket and the lower end of the push rod, and the second rod is respectively connected to the seat rod and the lower bracket for rotation .

Preferably, the upper bracket is T-shaped, and the included angle between the first rod and the second rod is 80°-90°. In a specific and preferred embodiment, the angle between the first rod and the second rod is about 90°, that is, the two are perpendicular to each other.

Preferably, the upper bracket is rotationally connected with the front bracket and the push rod through the first rotating shaft and the second rotating shaft respectively; The fifth and sixth rotating shafts are rotationally connected with the front bracket and the seat post, the third swing link is rotationally connected with the seat post and the lower bracket through the seventh and eighth rotating shafts respectively, and the upper bracket is respectively connected through the ninth and tenth rotating shafts It is rotatably connected with the lower bracket and the seat post. When the vehicle frame is in the unfolded state, the fifth, first, second, and third shafts are arranged sequentially from the front bottom to the rear top. The sixth shaft, the fourth shaft, the tenth shaft The rotating shaft and the seventh rotating shaft are arranged in sequence from front to back, the tenth rotating shaft is located at the front and upper side of the ninth rotating shaft, and the eighth rotating shaft is located at the rear and lower side of the ninth rotating shaft.

Preferably, two triangular structures are formed among the first swing rod, the seat rod, the second swing rod, the front support, the upper support and the push rod.

Preferably, the push rod includes an upper push rod and a lower push rod connected in rotation or sliding, and the lower push rod is respectively connected in rotation with the upper bracket and the seat post.

Preferably, the lower end of the upper push rod is rotatably connected to the upper end of the lower push rod through a rotating shaft.

Preferably, the lower end of the upper bracket and the upper end of the lower bracket are respectively formed with a first connecting ear and a second connecting ear, and the first connecting ear and the second connecting ear are connected through a rotating shaft. The lower end surface of the bracket is in conflict with the upper end surface of the lower bracket, preventing the lower bracket from rotating downward relative to the upper bracket.

Further, when the stroller frame is in the folded state, the front bracket and the push rod are respectively located on opposite sides of the upper bracket, and the lower bracket is located between the upper bracket and the push rod.

Due to the use of the above-mentioned technical solutions, the present invention has the following advantages compared with the prior art:

The children's stroller of the present invention has a novel structure, and the parts of the folded vehicle frame fit together well, and the space between them is small, and the folded vehicle frame is small in size, self-supporting, and easy to carry.

Description of drawings

Fig. 1 is a schematic diagram of the side view structure of the children's stroller of the present invention when it is in an unfolded state;

Fig. 2 is a side view structural schematic diagram during the folding process of the children's stroller of the present invention;

Fig. 3 is a schematic diagram of the side view structure of the children's stroller of the present invention when it is in a folded state;

Among them: 1. Side bracket; 2. Front bracket; 21. Front wheel assembly; 3. Rear bracket; 31. Rear wheel assembly; 32. Upper bracket; 321. First rod; 322. Second rod; 33. Lower bracket ;41, upper push rod; 42, lower push rod; 5, seat rod; 6, first swing rod; 7, second swing rod; 8, third swing rod; a1, first connecting ear; a2, second Connecting ears; D1, first shaft; D2, second shaft; D3, third shaft; D4, fourth shaft; D5, fifth shaft; D6, sixth shaft; D7, seventh shaft; D8, eighth shaft ; D9, the ninth rotating shaft; D10, the tenth rotating shaft.

Detailed ways

As shown in Fig. 1, Fig. 2 and Fig. 3, this example provides a kind of stroller for children, which includes a stroller frame with unfolded state and folded state, and a locking mechanism for locking the stroller frame in the unfolded state, The stroller frame comprises side supports 1 positioned at both sides of the stroller, and the side supports 1 comprise a front support 2 with a front wheel assembly 21 installed on the bottom, a rear support 3 with a rear wheel assembly 31 installed at the bottom, a push rod, a seat bar 5 and The first fork 6 , the second fork 7 , the third fork 8 . Wherein the push rod comprises an upper push rod 41 and a lower push rod 42 whose upper end is rotatably connected to the lower end of the upper push rod 41 .

Further, the rear support 3 includes an upper support 32 and a lower support 33 which are rotatably connected, the rear wheel assembly 31 is located at the lower end of the lower support 33, the upper support 32 is T-shaped, and has a vertical first bar 321 and a second Rod 322, the two ends of the first rod 321 are rotatably connected with the upper end of the front bracket 2 and the lower end of the lower push rod 42 through the first rotating shaft D1 and the second rotating shaft D2 respectively, and one end of the second rod 322 is connected with the ninth rotating shaft D9 and The lower bracket 33 is rotatably connected, and the other end is fixedly connected with the first rod 321, the seat rod 5 is rotatably connected with the second rod 322 through the tenth rotating shaft D10, and the two ends of the first swing rod 6 are respectively passed through the third rotating shaft D3, the fourth The rotating shaft D4 is rotationally connected with the push rod and the seat rod 5, the two ends of the second swing rod 7 are respectively connected with the upper part of the front bracket 2 and the front part of the seat rod 5 through the fifth rotating shaft D5 and the sixth rotating shaft D6, and the third swing rod Both ends of 8 are rotatably connected to the rear end of the seat post 5 and the lower bracket 33 through the seventh rotating shaft D7 and the eighth rotating shaft D8 respectively.

Further, the first rotating shaft D1, the second rotating shaft D2, the third rotating shaft D3, the fourth rotating shaft D4, the fifth rotating shaft D5, the sixth rotating shaft D6, the seventh rotating shaft D7, the eighth rotating shaft D8, the ninth rotating shaft D9, the tenth rotating shaft The axis lines of the rotating shaft D10 are parallel and extend horizontally along the left-right direction of the cart. In the unfolded state, the fifth rotating shaft D5, the first rotating shaft D1, the second rotating shaft D2, and the third rotating shaft D3 are arranged sequentially from the front bottom to the rear top, the sixth rotating shaft D6, the fourth rotating shaft D4, the tenth rotating shaft D10, and the seventh rotating shaft D7, arranged in sequence from front to back, the tenth rotating shaft D10 is located at the front and upper side of the ninth rotating shaft D9, and the eighth rotating shaft D8 is located at the rear and lower side of the ninth rotating shaft D9. A triangular structure is formed between the front support 2, the first bar 321, the lower push rod 42, the first fork 6, the seat bar 5, and the second fork 7; the front support 2, the first bar 321, the second bar 322, the seat A triangular structure is formed between the rod 5 and the second swing rod 7 .

Furthermore, the ends of the second rod 322 and the lower bracket 33 are respectively formed with a first connecting ear a1 and a second connecting ear a2, and the first connecting ear a1 and the second connecting ear a2 rotate through the ninth rotating shaft D9 connect. When the vehicle frame is unfolded, the first connecting ear a1 and the second connecting ear a2 form an angle of 90°, and the lower end surface of the second rod 322 is in conflict with the upper end surface of the lower bracket 33, preventing the lower bracket 33 from going downward relative to the second rod 322 Rotates to provide frame stability.

In the children's stroller of the present invention, when the vehicle frame is in the expanded state, as shown in Figure 1, the locking mechanism locks the vehicle frame, and the two parts that are rotatably connected are mutually expanded, wherein the front bracket 2 and the lower bracket 33 are mutually expanded And stand on the ground through the front wheel assembly 21 and the rear wheel assembly 31 respectively; The two rods 322 and the lower bracket 33 are unfolded in a diagonal line from the upper front to the lower rear; the seat rod 5, the first swing rod 6, the second swing rod 7, and the third swing rod 8 are mutually deployed.

When the vehicle frame is folded, as shown in Figure 2, the locking device is unlocked, the upper push rod 41 is pushed forward and downward, and the lower push rod 42 is rotated closer, and then the lower push rod 42 is pushed to rotate downward, and the lower push rod 42 rotates through the first The swing rod 6 drives the seat rod 5 to rotate around the tenth rotation axis D10 toward the rear end in a direction close to the first rod 321. When the seat rod 5 rotates, the second swing rod 7 drives the front bracket 2 to rotate backward and move closer to the upper bracket 32. The third swing rod 8 drives the lower bracket 33 to rotate upwards and move closer to the upper bracket 32, so that the components of the vehicle frame are folded closer to each other, and the final folded state is shown in FIG. 3 . At this time, the front bracket 2 and the push rod are respectively located on opposite sides of the upper bracket 32, the lower bracket 33 is located between the upper bracket 32 and the push rod, and the cart frame passes through the front wheel assembly 21 and the upper push rod. 41 and the rotary joint of the lower push rod 42 stand on the ground, the first rod 321 is in a horizontal state, the front bracket 2, the seat rod 5, the second rod 322, the lower bracket 33, the lower push rod 42, the first swing rod 6. Both the second swing rod 7 and the third swing rod 8 are located below the plane where the first rod 321 is located.

To sum up, the overall structure of the pushcart of the present invention is novel, simple and stable, and the parts of the folded frame fit well, the gaps between them are small, and the folded frame is small in volume. It can stand on its own, is easy to carry, and is easy to fold and operate.

The present invention has been described in detail above, and its purpose is to allow those skilled in the art to understand and implement the content of the present invention, and cannot limit the protection scope of the present invention with this, and the present invention is not limited to the above-mentioned embodiments. 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. The utility model provides a children's shallow, including having the shallow frame of expansion state and fold condition, being used for locking the shallow frame in the locking mechanical system of expansion state, the shallow frame is including collateral branch frame (1) that is located the shallow both sides, after-poppet (3), push rod and seat lever (5) that rear wheel subassembly (31) were installed to preceding support (2), the lower part that front wheel subassembly (21) were installed including the lower part in collateral branch frame (1), its characterized in that:

the rear bracket (3) comprises an upper bracket (32) and a lower bracket (33) which are rotationally connected with each other, the rear wheel assembly (31) is arranged at the lower end part of the lower bracket (33), the upper bracket (32) is rotationally connected with the upper end part of the front bracket (2) and the lower end part of the push rod respectively,

the side support (1) further comprises a first swing rod (6), a second swing rod (7) and a third swing rod (8), the seat rod (5) is rotatably connected with the upper support (32), two end portions of the first swing rod (6) are respectively rotatably connected with the push rod and the seat rod (5), two end portions of the second swing rod (7) are respectively rotatably connected with the front support (2) and the front portion of the seat rod (5), two end portions of the third swing rod (8) are respectively rotatably connected with the rear portion of the seat rod (5) and the lower support (33),

wherein the upper bracket (32) is respectively rotatably connected with the front bracket (2) and the push rod through a first rotating shaft (D1) and a second rotating shaft (D2), the first swing rod (6) is respectively rotatably connected with the push rod and the seat rod (5) through a third rotating shaft (D3) and a fourth rotating shaft (D4), the second swing rod (7) is respectively rotatably connected with the front bracket (2) and the seat rod (5) through a fifth rotating shaft (D5) and a sixth rotating shaft (D6), the third swing rod (8) is respectively rotatably connected with the seat rod (5) and the lower bracket (33) through a seventh rotating shaft (D7) and an eighth rotating shaft (D8), the upper bracket (32) is respectively rotatably connected with the lower bracket (33) and the seat rod (5) through a ninth rotating shaft (D9) and a tenth rotating shaft (D10),

when the cart frame is in the unfolded state, the sixth rotating shaft (D6), the fourth rotating shaft (D4), the tenth rotating shaft (D10) and the seventh rotating shaft (D7) are sequentially arranged from front to back, the tenth rotating shaft (D10) is located above the front of the ninth rotating shaft (D9), and the eighth rotating shaft (D8) is located below the back of the ninth rotating shaft (D9).

2. The stroller of claim 1, wherein: the rotating shaft axes between the two rotatably connected components are arranged in parallel and horizontally extend along the left and right directions of the cart, in an unfolded state, the rotating shaft axis between the front bracket (2) and the second swing rod (7) is positioned at the front lower part of the rotating shaft axis between the front bracket (2) and the upper bracket (32), the rotating shaft axis between the push rod and the first swing rod (6) is positioned at the rear upper part of the rotating shaft axis between the push rod and the upper bracket (32), and the rotating shaft axis between the seat rod (5) and the upper bracket (32) is positioned between the rotating shaft axes between the seat rod (5) and the second swing rod (7), between the seat rod (5) and the third swing rod (8); the rotating axis between the lower bracket (33) and the upper bracket (32) is positioned above the rotating axis between the lower bracket (33) and the third swing rod (8) and below the rotating axis between the seat rod (5) and the upper bracket (32).

3. The stroller of claim 1, wherein: the upper bracket (32) is provided with a first rod (321) and a second rod (322) which are intersected, two ends of the first rod (321) are respectively and rotatably connected with the upper end part of the front bracket (2) and the lower end part of the push rod, and the second rod (322) is respectively and rotatably connected with the seat rod (5) and the lower bracket (33).

4. The stroller of claim 3, wherein: the upper support (32) is T-shaped, and an included angle between the first rod (321) and the second rod (322) is 80-90 degrees.

5. Child stroller according to any of the claims 1 to 4, characterized in that: when the cart frame is in the unfolded state, the fifth rotating shaft (D5), the first rotating shaft (D1), the second rotating shaft (D2) and the third rotating shaft (D3) are sequentially arranged from the front lower part to the rear upper part.

6. Child stroller according to claim 1 or 2, characterized in that: the stroller frame is in an unfolded state, two triangular structures are formed among the first swing rod (6), the seat rod (5), the second swing rod (7), the front support (2), the upper support (32) and the push rod, wherein a triangular structure is formed among the front support (2), the upper support (32), the push rod, the first swing rod (6), the seat rod (5) and the second swing rod (7), and another triangular structure is formed among the front support (2), the upper support (32), the seat rod (5) and the second swing rod (7).

7. The stroller of claim 1, wherein: the push rod comprises an upper push rod (41) and a lower push rod (42) which are connected in a rotating or sliding mode, and the lower push rod (42) is connected with the upper support (32) and the seat rod (5) in a rotating mode respectively.

8. The stroller of claim 7, wherein: the lower end part of the upper push rod (41) is rotatably connected with the upper end part of the lower push rod (42) through a rotating shaft.

9. The stroller of claim 1, wherein: the lower end part of the upper support (32) and the upper end part of the lower support (33) are respectively provided with a first connecting lug (a 1) and a second connecting lug (a 2), the first connecting lug (a 1) and the second connecting lug (a 2) are rotatably connected through a rotating shaft, when the cart is in an unfolded state, the lower end surface of the upper support (32) is abutted against the upper end surface of the lower support (33), and the lower support (33) is prevented from rotating downwards relative to the upper support (32).

10. The stroller of claim 1, 2 or 3, wherein: when the stroller frame is in a folded state, the front support (2) and the push rod are respectively positioned on two opposite sides of the upper support (32), and the lower support (33) is positioned between the upper support (32) and the push rod.

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