CN201745622U - Baby carriage - Google Patents

Abstract

A baby stroller, the stroller frame includes a front wheel support, a rear wheel support whose upper end is rotatably connected to the upper end of the front wheel support, a seat bar which is rotatably connected to the front wheel support, one end connected to the rear wheel The connecting rod connected to the bracket in rotation, the lower part and the other end of the connecting rod are connected to the push bar in rotation, the rear end is connected to the side armrest in rotation with the push rod, and the front end of the side armrest is connected to the upper end of the seat bar Rotationally connected, the lower end of the seat post is rotationally connected to the connecting rod. Side armrests, seat rods, connecting rods, and push handle rods constitute a four-bar linkage mechanism, and front wheel brackets, rear wheel brackets, seat rods, and connecting rods also constitute a four-bar linkage mechanism. After unlocking the locking mechanism, push the push handle rods to Moving down, under the action of the four-bar linkage mechanism where it is located, the relative rotation between the connecting rod and the seat post is caused, thereby causing the front wheel bracket and the rear wheel bracket to move relatively closer.

Description

a toddler car

technical field

The utility model relates to a baby carriage.

Background technique

A baby stroller in the prior art includes a stroller frame, a front wheel assembly arranged at the bottom front of the stroller frame, a rear wheel assembly arranged at the bottom rear of the stroller frame, The seat mechanism arranged on the stroller frame, and the locking mechanism used to lock the stroller frame at the unfolded position. In the prior art, there are various folding structures and forms of the cart frame. Usually, the cart frame can be unfolded or folded, that is, it has an unfolded position and a folded position. The unfolded position is for users to use, and the folded position has a smaller volume for convenient storage and transportation.

Utility model content

The technical problem to be solved by the utility model is to provide a baby carriage.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a baby stroller, including a stroller frame with an unfolded position and a folded position, a front wheel assembly arranged at the front bottom of the stroller frame, a rear wheel assembly arranged at the bottom rear of the cart frame, a seat mechanism arranged on the cart frame, a locking mechanism for locking the cart frame at the unfolded position, The cart frame includes

A front wheel bracket, the front wheel assembly is arranged at the lower part of the front wheel bracket;

a rear wheel bracket, the upper end of the front wheel bracket is rotatably connected to the upper end of the rear wheel bracket through a first rotating shaft, and the rear wheel assembly is arranged at the lower part of the rear wheel bracket;

a seat post, the seat post is rotatably connected to the front wheel support via a second rotating shaft;

a connecting rod, one end of the connecting rod is rotatably connected to the rear wheel bracket through the fourth rotating shaft, and the lower end of the seat bar is rotatably connected to the connecting rod through the third rotating shaft;

The push rod, the other end of the connecting rod is rotationally connected with the lower part of the push rod through the fifth rotating shaft;

A side armrest, the rear end of the side armrest is rotationally connected with the push handle rod through the sixth rotating shaft, and the front end of the side armrest is connected with the upper end of the seat rod through the seventh rotating shaft rotationally connected.

In some embodiments, the first rotating shaft, the second rotating shaft, the third rotating shaft, the fourth rotating shaft, the fifth rotating shaft, the sixth rotating shaft, the The seventh axis of rotation described above is parallel to and parallel to the horizontal plane.

In some embodiments, the second rotating shaft is located in front of the seventh rotating shaft and the first rotating shaft respectively.

In some embodiments, the third rotating shaft is located between the fourth rotating shaft and the fifth rotating shaft.

In some embodiments, the locking mechanism is disposed between the lower end of the push handle rod and the rear wheel bracket.

In some further embodiments, the locking mechanism includes a spring pin arranged at the lower end of the push handle rod and a locking hole opened on the rear wheel bracket, and the locking mechanism has a locking position and In the unlocked position, when the locking mechanism is in the locked position, the spring pin is located in the lock hole, and when the locking mechanism is in the unlocked position, the spring pin is out of the lock hole.

In some further embodiments, the locking mechanism also includes an operating mechanism that controls the switching of the locking mechanism from the locked position to the unlocked position, and the operating mechanism includes an operating mechanism provided on the push handle rod One end of the traction cable is connected with the operating member, and the other end of the traction cable is connected with the spring pin.

In some embodiments, the cart frame includes side brackets located on both sides, and a connecting bracket connected between the side brackets on both sides, and the side brackets on each side include the The front wheel bracket, the rear wheel bracket, the seat bar, the connecting rod, the push handle bar, and the side armrest.

In some further embodiments, the connecting frame is a plurality of cross bars fixedly arranged between the side brackets on both sides respectively.

The orientation words such as front, rear, up, and down mentioned above are defined when the cart frame is in the unfolded position, and the position of the front wheel assembly is front and bottom, and the position of the rear wheel assembly is rear and bottom .

The scope of the present utility model is not limited to technical solutions formed by a specific combination of the above technical features, but also covers other technical solutions formed by any combination of the above technical features or equivalent features. For example, technical solutions formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

Due to the use of the above technical solutions, the utility model has the following advantages compared with the prior art: the utility model provides another technical solution of the technical concept, the side armrest, the seat bar, the connecting rod 1. The push handle bar constitutes a four-bar linkage, and the front wheel bracket, the rear wheel bracket, the seat rod, and the connecting rod also constitute a four-bar linkage. When the locking mechanism is unlocked Finally, move the push handle bar downwards, and under the action of the four-bar linkage mechanism where it is located, the relative rotation between the connecting rod and the seat bar will be caused, resulting in a gap between the front wheel bracket and the rear wheel bracket. Relatively close, easy to fold, simple structure, and the front wheel assembly and the rear wheel assembly support the cart frame, and realize self-support after folding. After folding, the push handle bar is still erected, which is convenient for users take.

Description of drawings

Accompanying drawing 1 is the front view one of the present utility model (cart frame is positioned at unfolding position);

Accompanying drawing 2 is the front view two of the present utility model (the status diagram one of the pushcart frame in the conversion process of the unfolded position and the folded position);

Accompanying drawing 3 is the front view three of the present utility model (the status diagram two of the pushcart frame in the transition process between the unfolded position and the folded position);

Accompanying drawing 4 is front view four of the present utility model (cart frame is positioned at folding position);

Accompanying drawing 5 is the perspective view of the present utility model (cart frame is positioned at unfolding position);

Accompanying drawing 6 is the exploded view of the utility model.

Among them: 1. Cart frame; 2. Front wheel assembly; 3. Rear wheel assembly; 4. Front wheel support; 5. Rear wheel support; 6. Seat rod; 7. Connecting rod; 8. Push handle bar; , side armrest; 11, first shaft; 12, second shaft; 13, third shaft; 14, fourth shaft; 15, fifth shaft; 16, sixth shaft; 17, seventh shaft; 18, spring pin ; 19, keyhole; 20, operating parts.

Detailed ways

As shown in the accompanying drawings, a baby stroller includes a stroller frame 1 with an unfolded position and a folded position, a front wheel assembly 2 arranged at the bottom front of the stroller frame 1, and a front wheel assembly 2 arranged at the bottom of the stroller frame 1. The rear wheel assembly 3 at the bottom of the cart frame 1 , the seat mechanism arranged on the cart frame 1 , and the locking mechanism for locking the cart frame 1 in the deployed position.

The stroller frame 1 includes side brackets located on both sides, and a connecting bracket connected between the side brackets on both sides. The connecting frame is a plurality of cross bars fixedly arranged between the side brackets on both sides.

Said side brackets on each side include:

The front wheel bracket 4, the front wheel assembly 2 is arranged on the bottom of the front wheel bracket 4, the bottom of the front wheel bracket 4 on both sides can be provided with the front wheel assembly 2 respectively, or it can be The lower ends of the front wheel brackets 4 on both sides are close to each other, and the front wheel assembly 2 is arranged below the junction;

The rear wheel bracket 5, the upper end of the front wheel bracket 4 is rotatably connected to the upper end of the rear wheel bracket 5 through the first rotating shaft 11, and the rear wheel assembly 3 is arranged on the rear wheel the lower part of the bracket 5;

Seat bar 6, the seat bar 6 is roughly in the shape of a downturned U, and the recess of the seat bar 6 is rotatably connected to the front wheel bracket 4 through the second rotating shaft 12;

A connecting rod 7, one end of the connecting rod 7 is rotationally connected with the rear wheel bracket 5 through the fourth rotating shaft 14, and the lower end of the seat bar 6 is connected with the connecting rod 7 through the third The rotating shaft 13 is rotationally connected;

Push bar 8, the other end of the connecting rod 7 is rotationally connected with the lower part of the push bar 8 through the fifth rotating shaft 15;

Side armrest 9, the rear end of the side armrest 9 is connected to the push handle bar 8 through the sixth rotating shaft 16 in a rotational manner, the front end of the side armrest 9 is connected to the upper end of the seat bar 6 The parts are rotatably connected by the seventh rotating shaft 17. When the locking mechanism is unlocked, the push handle bar will move downward due to its own center of gravity, so that the user saves effort during the folding process and feels more comfortable.

The first rotating shaft 11, the second rotating shaft 12, the third rotating shaft 13, the fourth rotating shaft 14, the fifth rotating shaft 15, the sixth rotating shaft 16, the The seventh rotation axis 17 is parallel to and parallel to the horizontal plane.

As shown in accompanying drawings 1 to 4, the second rotating shaft 12 is located in front of the seventh rotating shaft 17 and the first rotating shaft 11 respectively.

The third rotating shaft 13 is located between the fourth rotating shaft 14 and the fifth rotating shaft 15 .

In order to facilitate the operation and control of the locking mechanism, the locking mechanism is usually arranged between the push handle bar 8 and a certain part of the cart frame. The locking mechanism is arranged between the lower end of the push rod 8 and the rear wheel bracket 5 . The locking mechanism can also be arranged between the push lever 8 and the side armrest 9 or between the push lever 8 and the connecting rod 7 .

And the concrete structure of described locking mechanism is not limited, and in the present embodiment, described locking mechanism comprises the spring pin 18 that is arranged on the lower end of described push bar 8, is opened on the described rear wheel support 5. Locking hole 19, the locking mechanism has a locking position and an unlocking position, when the locking mechanism is in the locking position, the spring pin 18 is located in the locking hole 19, when the locking mechanism is in the unlocking position position, the spring pin 18 breaks away from the locking hole 19. Described locking mechanism can also be other structures, as the first locking hook is connected with the rotation at the lower end of push bar 8, is fixed with the second locking hook at rear wheel support, and described locking mechanism is under the locked position, so The first lock hook is hooked on the second lock hook.

The locking mechanism also includes an operating mechanism that controls the switching of the locking mechanism from the locked position to the unlocked position. As shown in Figures 5 and 6, the operating mechanism includes The operation part 20 on the top, the traction cable connected with the operation part 20 at one end, and the other end of the traction cable is connected with the spring pin 18.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present utility model, and its purpose is to enable those familiar with this technology to understand the content of the present utility model and implement it accordingly, and not to limit the protection scope of the present 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 (9)

1. A baby stroller, comprising a stroller frame (1) with an unfolded position and a folded position, a front wheel assembly (2) arranged at the bottom front of the stroller frame (1), and a front wheel assembly (2) arranged at the bottom front of the stroller frame (1), The rear wheel assembly (3) at the bottom of the cart frame (1), the seat mechanism arranged on the cart frame (1), is used to lock the cart frame (1) The locking mechanism in the unfolded position is characterized in that the cart frame (1) includes A front wheel bracket (4), the front wheel assembly (2) is arranged on the lower part of the front wheel bracket (4); The rear wheel bracket (5), the upper end of the front wheel bracket (4) is rotationally connected with the upper end of the rear wheel bracket (5) through the first rotating shaft (11), and the rear wheel assembly (3) be arranged on the bottom of described rear wheel support (5); a seat post (6), the seat post (6) is rotatably connected to the front wheel bracket (4) through a second rotating shaft (12); A connecting rod (7), one end of the connecting rod (7) is rotationally connected with the rear wheel bracket (5) through the fourth rotating shaft (14), and the lower end of the seat rod (6) Rotately connected with the connecting rod (7) through the third rotating shaft (13); The push rod (8), the other end of the connecting rod (7) is rotationally connected with the lower part of the push rod (8) through the fifth rotating shaft (15); Side armrest (9), the rear end of the side armrest (9) is rotationally connected with the push lever (8) through the sixth rotating shaft (16), and the front end of the side armrest (9) and the upper end of the seat post (6) through the seventh rotating shaft (17) to be rotationally connected. 2. A baby stroller according to claim 1, characterized in that: said first rotating shaft (11), said second rotating shaft (12), said third rotating shaft (13), said The fourth axis of rotation (14), the fifth axis of rotation (15), the sixth axis of rotation (16), and the seventh axis of rotation (17) are parallel to and parallel to the horizontal plane. 3. A stroller according to claim 1, characterized in that: said second rotating shaft (12) is respectively located in front of said seventh rotating shaft (17) and said first rotating shaft (11) . 4. A stroller according to claim 1, characterized in that the third rotating shaft (13) is located between the fourth rotating shaft (14) and the fifth rotating shaft (15). 5. A stroller according to claim 1, characterized in that: said locking mechanism is arranged between the lower end of said push handle rod (8) and said rear wheel bracket (5). 6. A stroller according to claim 6, characterized in that: said locking mechanism includes a spring pin (18) arranged at the lower end of said push handle rod (8), and a spring pin (18) set at said rear The locking hole (19) on the wheel bracket (5), the locking mechanism has a locking position and an unlocking position, when the locking mechanism is in the locking position, the spring pin (18) is located in the locking hole In (19), when the locking mechanism is in the unlocked position, the spring pin (18) is disengaged from the locking hole (19). 7. A stroller according to claim 7, characterized in that: said locking mechanism also includes an operating mechanism for controlling said locking mechanism to switch from a locked position to an unlocked position, and said operating mechanism includes a The operating part (20) on the push handle bar (8), the traction cable connected to the operating part (20) at one end, and the other end of the traction cord is connected to the spring pin ( 18) Connected. 8. A baby stroller according to claim 1, characterized in that: the stroller frame (1) includes side brackets located on both sides, and a bracket connected between the side brackets on both sides. Connecting frame, described side support of each side all comprises described front wheel support (4), described rear wheel support (5), described seat rod (6), described connecting rod (7) , the push handle bar (8), the side armrest (9). 9 . The stroller according to claim 9 , wherein the connecting frame is a plurality of cross bars fixedly arranged between the side brackets on both sides. 10 .

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