CN101665115B - Baby trolley - Google Patents

Abstract

A stroller, the stroller frame includes a first front wheel bracket, a first push rod slidingly arranged with the first front wheel bracket along the length direction of the first front wheel bracket, an upper end and the first push rod The upper part of the first rear wheel bracket is rotatably connected, the first sliding member slidably arranged on the first rear wheel bracket along the length direction of the first rear wheel bracket, and the lower part is rotatably connected with the lower part of the first front wheel bracket The first connecting rod, the first seat post that is rotatably connected with the first connecting rod, the upper part of the first connecting rod is rotatably connected with the first slider, the rear end of the first seat post is connected with the first rear wheel bracket Phase rotation connection. When the present invention is folded, only the first push rod needs to be pressed down, and the turning point between the first connecting rod and the first seat post moves upward, so that the first front wheel bracket and the first rear wheel bracket are folded closer , so as to be folded, and the upper part of the first push rod is still located at the top, which is convenient for the user to take.

Description

baby cart

technical field

The invention relates to a baby stroller. the

Background technique

In the prior art, as shown in the patent document of Chinese Publication No. CN1600616, a baby stroller includes a first push handle, a second push handle, and a first push handle whose upper end is rotatably connected to the lower part of the first push handle. A rear wheel bracket, a second rear wheel bracket whose upper end is rotatably connected to the lower part of the second push handle, a first front wheel bracket whose upper end is rotatably connected to the lower end of the first push rod, and an upper end a second front wheel bracket rotatably connected to the lower end of the second push rod, a foldable first bracket arranged between the first rear wheel bracket and the second rear wheel bracket, The two rods are crossed and connected to each other at the intersection, and the cross is located between the first rear wheel bracket, the second rear wheel bracket, the first push handle, and the second push handle, The first front wheel bracket and the first rear wheel bracket are respectively rotatably connected to the front and rear parts of the first connecting rod, and the second front wheel bracket and the second rear wheel bracket are respectively The front part and the rear part of the second connecting rod are rotatably connected, and the first front wheel support, the first push handle, the first rear wheel support and the first connecting rod form a four-link Bar mechanism, described second front wheel support, described second push handle, described second rear wheel support, described second connecting rod also constitute four-bar linkage. During the transformation process of the baby stroller from the unfolded position to the folded position, the first push handle and the second push handle must be turned forward to be folded. the

Contents of the invention

The technical problem to be solved by the present invention is to provide a baby stroller. the

To solve the above-mentioned technical problems, a technical solution adopted by the present invention is: a baby stroller, including a stroller frame with an unfolded state and a folded state, and is arranged wheel assembly, a rear wheel assembly arranged at the bottom rear of the cart frame, a locking mechanism for locking the cart frame in an unfolded state, and the cart frame includes

first front wheel bracket;

The first push rod, the first push rod is arranged to slide with the first front wheel bracket along the length direction of the first front wheel bracket, the first push rod and the first front wheel bracket constitute Telescopic rod, and the first push rod can be in the lumen of the first front wheel bracket, or the first front wheel bracket can be in the lumen of the first push rod;

The first rear wheel bracket, the upper end of the first rear wheel bracket is rotatably connected to the upper part of the first push rod;

The first slider, the first slider can be slidably arranged on the first rear wheel bracket along the length direction of the first rear wheel bracket, the first slider can be a sleeve, and the sleeve The tube is slidably sleeved on the first rear wheel bracket, or a long slot may be opened on the first rear wheel bracket along its length direction, and the slider is slidably inserted into the long slot;

The first connecting rod, the lower part of the first connecting rod is rotationally connected with the lower part of the first front wheel bracket, and the upper part of the first connecting rod is rotationally connected with the first sliding member connect;

A first seat post, the first seat post is rotatably connected to the first connecting rod, and the rear end of the first seat post is rotatably connected to the first rear wheel bracket. the

In some embodiments, the cart frame also includes

second front wheel bracket;

The second push rod, the second push rod is arranged to slide with the second front wheel bracket along the length direction of the second front wheel bracket, and the second push rod and the second front wheel bracket also A telescopic rod is formed, and the second push rod may be in the lumen of the second front wheel bracket, or the second front wheel bracket may be in the lumen of the second push rod;

The second rear wheel bracket, the upper end of the second rear wheel bracket is rotatably connected to the upper part of the second push rod;

The second slider, the second slider can be slidably arranged on the second rear wheel bracket along the length direction of the second rear wheel bracket, the second slider can be a sleeve, and the sleeve The tube is slidably sleeved on the second rear wheel bracket, or a long slot may be opened on the second rear wheel bracket along its length direction, and the slider is slidably inserted into the long slot;

The second connecting rod, the lower part of the second connecting rod is rotationally connected with the lower part of the second front wheel bracket, and the upper part of the second connecting rod is rotationally connected with the second sliding member connect;

a second seat post, the second seat post is rotatably connected to the second connecting rod, and the rear end of the second seat post is rotatably connected to the second rear wheel bracket;

A foldable bottom brace, the bottom brace is composed of a first bottom brace and a second bottom brace that intersect and are rotatably connected at the intersection, the front end of the first bottom brace is connected to the The front part of the second seatpost is arranged in rotation, the rear end of the first bottom brace is arranged in rotation with the lower part of the first rear wheel bracket, and the second bottom brace The front end of the rod is rotatably arranged with the front part of the first seatpost, and the rear end of the second bottom stay is rotatably arranged with the lower part of the second rear wheel bracket;

A foldable rear bracket, the rear bracket is only set between the first rear wheel bracket and the second rear wheel bracket, or the rear bracket is set on the first between the rear wheel bracket, the second rear wheel bracket, the first push rod and the second push rod. The stroller frame can not only be folded in the front, rear, up and down directions to reduce the volume, but also can be folded in the lateral direction to reduce the volume, so that the folded structure is compact and the volume is small. the

In some further embodiments, the rear support includes:

vertical pole;

The first cross bar, one end of the first cross bar is rotatably connected to the upper end of the vertical bar, and the other end of the first cross bar is rotatably connected to the first rear wheel bracket ;

The second cross bar, one end of the second cross bar is rotatably connected to the upper end of the vertical bar, and the other end of the second cross bar is rotatably connected to the second rear wheel bracket ;

a slider, the slider is slidably arranged on the vertical bar;

The first oblique rod, one end of the first oblique rod is rotatably connected to the slider, and the other end of the first oblique rod is rotatably connected to the first rear wheel bracket;

The second oblique rod, one end of the second oblique rod is rotatably connected to the slider, and the other end of the second oblique rod is rotatably connected to the second rear wheel bracket;

The third cross bar, one end of the third cross bar is rotatably connected to the lower end of the vertical bar, and the other end of the third cross bar is rotatably connected to the first rear wheel bracket ;

A fourth cross bar, one end of the fourth cross bar is rotatably connected to the lower end of the vertical bar, and the other end of the fourth cross bar is rotatably connected to the second rear wheel bracket . On the basis of making the cart frame more rigid, the rear support also functions as a locking mechanism for the cart frame, so that the cart frame is stably in the unfolded position. the

The scope of the present invention 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. the

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

When the present invention is folded, only the first push rod needs to be pressed down, and the turning point between the first connecting rod and the first seat post moves upward, so that the first front wheel bracket and the first rear wheel bracket The two parts are folded closer to each other, so as to be folded, and the upper part of the first push rod is still located at the top, which is convenient for the user to take. the

Description of drawings

Accompanying drawing 1 is the three-dimensional view of stroller (in unfolded state, embodiment two);

Accompanying drawing 2 is the three-dimensional view of stroller (in the conversion process of unfolded state and folded state, embodiment two);

Accompanying drawing 3 is the three-dimensional view of stroller (in folded state, embodiment two);

Accompanying drawing 4 is the front view of stroller (in unfolded state, embodiment two);

Accompanying drawing 5 is the front view of stroller (in the conversion process of expanded state and folded state, embodiment two);

Accompanying drawing 6 is the front view of stroller (in folded state, embodiment two);

Accompanying drawing 7 is the left side view of stroller (in unfolded state, embodiment two);

Accompanying drawing 8 is the left side view of stroller (in the conversion process of expanded state and folded state, embodiment two);

Accompanying drawing 9 is the left side view of stroller (in folded state, embodiment two);

Accompanying drawing 10 is the front view of stroller (in unfolded state, embodiment one);

Accompanying drawing 11 is the front view of the baby stroller (in the conversion process between the unfolded state and the folded state, embodiment one);

Accompanying drawing 12 is the front view of the stroller (in the folded state, Embodiment 1). the

Among them: 1. Cart frame; 2. The first front wheel assembly; 3. The second front wheel assembly; 4. The first rear wheel assembly; 5. The second rear wheel assembly; 6. The first front wheel bracket; 7 , the second front wheel support; 8, the first push rod; 9, the second push rod; 10, the first handle; 11, the second handle; 12, the first rear wheel support; 13, the second rear wheel support; 14, The first seat post; 15, the second seat post; 16, the first link; 17, the second link; 18, the first slider; 19, the second slider; 20, the bottom bracket; 21, the first Bottom support bar; 22, second bottom support bar; 23, rear support frame; 24, operating part; 25, first cross bar; 26, second cross bar; 27, slider; 28, first slanting bar; 29 , the second oblique bar; 30, the vertical bar; 31, the pedal; 32, the third cross bar; 33, the fourth cross bar. the

Detailed ways

Embodiment 1: As shown in accompanying drawings 10-12, a baby stroller includes a stroller frame 1 in an unfolded state and a folded state, and front wheels arranged at the bottom front of the stroller frame 1 components, a rear wheel assembly arranged at the bottom rear part of the cart frame 1, and a locking mechanism for locking the cart frame 1 in an unfolded state. the

The stroller frame 1 includes side brackets on both sides, a cross bar fixedly connected between the side brackets on both sides, and a seat arranged between the side brackets on both sides. the

The side brackets on each side include

The first front wheel bracket 6, the bottom of the first front wheel bracket 6 is provided with the front wheel assembly;

The first push rod 8, the first push rod 8 is arranged to slide with the first front wheel support 6 along the length direction of the first front wheel support 6, and the first front wheel support 6 slides Inserted in the lumen of the first push rod 8, the upper end of the first push rod 8 has a first handle;

The first rear wheel bracket 12, the upper end of the first rear wheel bracket 12 is rotatably connected with the upper part of the first push rod 8, and the bottom of the first rear wheel bracket 12 is provided with the rear wheel assembly;

The first sliding member 18, the first sliding member 18 can slide on the first rear wheel support 12 along the length direction of the first rear wheel support 12;

The first connecting rod 16, the lower part of the first connecting rod 16 is rotationally connected with the lower part of the first front wheel bracket 6, and the upper part of the first connecting rod 16 is connected with the first sliding Part 18 is rotationally connected;

The first seatpost 14, the approximate middle part of the first seat post 14 is rotationally connected with the approximate middle part of the first connecting rod 16, and the rear end part of the first seat post 14 is connected with the said first seat post 14. The first rear wheel bracket 12 is rotatably connected. As for the locking mechanism, it may be arranged between any two components that have a sliding relationship or a rotating relationship. the

After being folded, the front wheel assembly and the rear wheel assembly support the folded trolley frame on the ground, thereby realizing self-support. the

Embodiment 2: As shown in accompanying drawings 1-9, a baby stroller includes a stroller frame 1 in an unfolded state and a folded state, a seat arranged on the stroller frame 1, and a seat arranged on the stroller frame 1. The front wheel assembly at the bottom front part of the cart frame 1, the rear wheel assembly arranged at the bottom rear part of the cart frame 1, and the locking mechanism for locking the cart frame 1 in the unfolded state locking mechanism. The front wheel assembly includes a first front wheel assembly 2 and a second front wheel assembly 3 , and the rear wheel assembly includes a first rear wheel assembly 4 and a second rear wheel assembly 5 . the

Described trolley frame 1 comprises

The first front wheel bracket 6, the first front wheel assembly 2 is arranged on the bottom of the first front wheel bracket 6;

The second front wheel bracket 7; the second front wheel assembly 3 is arranged on the bottom of the second front wheel bracket 7;

The first push rod 8, the first push rod 8 is arranged to slide with the first front wheel bracket 6 along the length direction of the first front wheel bracket 6, and the first push rod The upper end of 8 has first handle 10;

The second push rod 9, the second push rod 9 is arranged to slide with the second front wheel bracket 7 along the length direction of the second front wheel bracket 7, and the second push rod The upper end of 9 has a second handle 11;

The first rear wheel bracket 12, the upper end of the first rear wheel bracket 12 is rotatably connected with the upper part of the first push rod 8, and the first rear wheel assembly 4 is arranged on the first Below the rear wheel bracket 12;

The second rear wheel bracket 13, the upper end of the second rear wheel bracket 13 is rotatably connected with the upper part of the second push rod 9, and the second rear wheel assembly 5 is arranged on the second Below the rear wheel bracket 13;

The first slider 18, the first slider 18 can be slidably arranged on the first rear wheel bracket 12 along the length direction of the first rear wheel bracket 12;

The second sliding member 19, the second sliding member 19 can be slidably arranged on the second rear wheel support 13 along the length direction of the second rear wheel support 13;

The first connecting rod 16, the lower part of the first connecting rod 16 is rotationally connected with the lower part of the first front wheel bracket 6, and the upper part of the first connecting rod 16 is connected with the first sliding Part 18 is rotationally connected;

The second connecting rod 17, the lower part of the second connecting rod 17 is rotationally connected with the lower part of the second front wheel bracket 7, the upper part of the second connecting rod 17 is connected with the second sliding Part 19 is rotationally connected;

The first seat post 14, the first seat post 14 is rotatably connected with the first connecting rod 16, and the rear end of the first seat post 14 is connected with the first rear wheel bracket 12. swivel connection;

The second seat post 15, the second seat post 15 is rotatably connected with the second connecting rod 17, and the rear end of the second seat post 15 is connected with the second rear wheel bracket 13. swivel connection;

As shown in accompanying drawing 7-accompanying drawing 9, the bottom support frame 20 that can be folded, described bottom support frame 20 is crossed by the first bottom support bar 21, the second bottom support bar 22 and is rotatably connected at the intersection The front end of the first bottom brace 21 is arranged to rotate with the front of the second seat post 15, and the rear end of the first bottom brace 21 is connected to the second seat post 15. The lower part of a rear wheel support 12 is arranged in rotation, the front end of the second bottom stay 22 is arranged in rotation with the front of the first seatpost 14, and the second bottom stay 22 The rear end portion of the second rear wheel bracket 13 is set to rotate with the bottom of the second;

A foldable rear bracket 23, the rear bracket 23 is arranged between the first rear wheel bracket 12 and the second rear wheel bracket 13, the rear bracket 23 includes:

vertical bar 30;

The first cross bar 25, one end of the first cross bar 25 is rotatably connected with the upper end of the vertical bar 30, and the other end of the first cross bar 25 is connected with the first rear wheel 12-phase rotating connection of bracket;

The second cross bar 26, one end of the second cross bar 26 is rotatably connected with the upper end of the vertical bar 30, and the other end of the second cross bar 26 is connected with the second rear wheel 13-phase rotating connection of bracket;

The slider 27, the slider 27 is slidably arranged on the vertical bar 30;

The first slanting rod 28, one end of the first slanting rod 28 is rotatably connected to the slider 27, and the other end of the first slanting rod 28 is rotatably connected to the first rear wheel bracket 12;

The second slanting rod 29, one end of the second slanting rod 29 is rotatably connected to the slider 27, and the other end of the second slanting rod 29 is rotatably connected to the second rear wheel bracket 13 ;

The third cross bar 32, one end of the third cross bar 32 is rotatably connected with the lower end of the vertical bar 30, and the other end of the third cross bar 32 is connected with the first rear wheel 12-phase rotating connection of bracket;

The fourth cross bar 33, one end of the fourth cross bar 33 is rotatably connected to the lower end of the vertical bar 30, and the other end of the fourth cross bar 33 is connected to the second rear wheel The support 13 is rotatably connected. the

The upper part of the vertical rod 30 is provided with an operating part 24, and pulling up the operating part 24 can convert the vehicle frame from the unfolded state to the folded state;

The lower part of the vertical bar 30 is provided with a pedal 31, and stepping on the pedal 31 can convert the vehicle frame from the folded state to the unfolded state. The rear support frame 23 simultaneously plays the role of stably locking the stroller frame 1 in the unfolded position. the

Only need to press down the first push rod 8 and the second push rod 9, the pivot point between the first connecting rod 16 and the first seat post 14 moves upward, and the rotation point between the second connecting rod 17 and the second seat post 15 The pivot point moves upwards, so that the first front wheel bracket 6 and the first rear wheel bracket 12 are folded closer, so that the second front wheel bracket 7 and the second rear wheel bracket 13 are folded closer, and at the same time, the rear support The frame 23 and the bottom bracket 20 are folded, so that the first rear wheel bracket 12 and the second rear wheel bracket 13 are folded closer, and the first front wheel bracket 6 and the second front wheel bracket 7 are folded closer. After folding, the first The front wheel assembly 2 , the second front wheel assembly 3 , the first rear wheel assembly 4 , and the second rear wheel assembly 5 support the folded trolley frame on the ground, thereby realizing self-support. And the upper parts of the first push rod 8 and the second push rod 9 are still located at the top, which is convenient for the user to take. the

Or the rear bracket 23 is arranged between the first rear wheel bracket 12, the second rear wheel bracket 13, the first slider 18 and the second slider 19, If the rear bracket is intersected by two rods and connected in rotation at the intersection, the four ends of the rear bracket can be rotatably arranged on the first rear wheel bracket 12 and the second rear wheel bracket. Between the wheel bracket 13, the first sliding member 18, and the second sliding member 19. Or the rear bracket 23 is arranged between the first rear wheel bracket 12, the second rear wheel bracket 13, the first push rod 8 and the second push rod 9, If the rear bracket is intersected by two rods and connected in rotation at the intersection, the four ends of the rear bracket can be rotatably arranged on the first rear wheel bracket 12 and the second rear wheel bracket. Between the wheel bracket 13, the first push rod 8, and the second push rod 9. the

As mentioned above, we have fully described according to the purpose of the present invention, but the present invention is not limited to the above-mentioned embodiments and implementation methods. Practitioners in the relevant technical fields may make various changes and implementations within the scope permitted by the technical ideas of the present invention. the

Claims (3)

1. doll carriage; The anterior front component in the end that comprise go-cart vehicle frame (1), is arranged on described go-cart vehicle frame (1) with deployed condition and folded state, be arranged on the rear portion, the end of described go-cart vehicle frame (1) wheel assembly, be used for described go-cart vehicle frame (1) is locked in the lockout mechanism of deployed condition, it is characterized in that: described go-cart vehicle frame (1) comprises

First front-wheel support (6);

First push rod (8), described first push rod (8) is provided with described first front-wheel support (6) along the length direction of described first front-wheel support (6) mutually slidably;

First rear wheel support (12), the upper end of described first rear wheel support (12) rotate with the top of described first push rod (8) and are connected;

First sliding part (18), described first sliding part (18) can be slidingly arranged on described first rear wheel support (12) along described first rear wheel support (12) length direction;

First connecting rod (16), the bottom of described first connecting rod (16) is connected with the bottom of described first front-wheel support (6) rotatedly, and the top of described first connecting rod (16) is connected with described first sliding part (18) rotatedly;

First bar (14), described first bar (14) rotate with described first connecting rod (16) and are connected, and the rearward end of described first bar (14) rotates with described first rear wheel support (12) and is connected.

2. doll carriage according to claim 1 is characterized in that:

Described go-cart vehicle frame also comprises

Second front-wheel support (7);

Second push rod (9), described second push rod (9) is provided with described second front-wheel support (7) along the length direction of described second front-wheel support (7) mutually slidably;

Second rear wheel support (13), the upper end of described second rear wheel support (13) rotate with the top of described second push rod (9) and are connected;

Second sliding part (19), described second sliding part (19) can be slidingly arranged on described second rear wheel support (13) along described second rear wheel support (13) length direction;

Second connecting rod (17), the bottom of described second connecting rod (17) is connected with the bottom of described second front-wheel support (7) rotatedly, and the top of described second connecting rod (17) is connected with described second sliding part (19) rotatedly;

Second bar (15), described second bar (15) rotate with described second connecting rod (17) and are connected, and the rearward end of described second bar (15) rotates with described second rear wheel support (13) and is connected;

The bottom bracing frame (20) that can fold; Described bottom bracing frame (20) is intersected by first bottom supporting rod (21), second bottom supporting rod (22) and rotates at infall and connects and composes; The front portion of the leading section of described first bottom supporting rod (21) and described second bar (15) is provided with rotatedly; The bottom of the rearward end of described first bottom supporting rod (21) and described first rear wheel support (12) is provided with rotatedly; The front portion of the leading section of described second bottom supporting rod (22) and described first bar (14) is provided with rotatedly, and the bottom of the rearward end of described second bottom supporting rod (22) and described second rear wheel support (13) is provided with rotatedly;

The back pole-bracket that can fold (23); Described back pole-bracket (23) only is arranged between described first rear wheel support (12), described second rear wheel support (13), and perhaps described back pole-bracket (23) is arranged between described first rear wheel support (12), described second rear wheel support (13), described first push rod (8) and described second push rod (9).

3. doll carriage according to claim 2 is characterized in that: said back pole-bracket (23) comprising:

Montant (30);

First cross bar (25), an end of described first cross bar (25) rotate with the upper end of said montant (30) and are connected, and the other end of described first cross bar (25) rotates with described first rear wheel support (12) and is connected;

Second cross bar (26), an end of described second cross bar (26) rotate with the upper end of said montant (30) and are connected, and the other end of described second cross bar (26) rotates with described second rear wheel support (13) and is connected;

Slide block (27), described slide block (27) are slidingly arranged on the described montant (30);

First brace (28), described first brace (28) one ends and said slide block (27) bonded assembly that rotates, said first brace (28) the other end rotates with said first rear wheel support (12) and is connected;

Second brace (29), described second brace (29) one ends and said slide block (27) bonded assembly that rotates, described second brace (29) the other end rotates with said second rear wheel support (13) and is connected;

The 3rd cross bar (32), an end of described the 3rd cross bar (32) rotate with the bottom of said montant (30) and are connected, and the other end of described the 3rd cross bar (32) rotates with described first rear wheel support (12) and is connected;

The 4th cross bar (33), an end of described the 4th cross bar (33) rotate with the bottom of said montant (30) and are connected, and the other end of described the 4th cross bar (33) rotates with described second rear wheel support (13) and is connected.

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