CN114104071B - A double stroller for children - Google Patents

Abstract

The invention discloses a double-person stroller, which comprises a stroller frame in an unfolded and folded state and a first locking mechanism for locking the stroller frame in the unfolded state, wherein the stroller frame comprises a front support, a front connecting rod, a rear connecting rod, a first connecting rod, a second connecting rod and a push rod assembly, a front wheel assembly is arranged at the lower part of the front support, a rear wheel assembly is arranged at the rear part of the rear connecting rod, the front part of the front connecting rod is rotatably connected with the front support, the rear part of the front connecting rod is rotatably connected with the front part of the rear connecting rod, two end parts of the first connecting rod are respectively rotatably connected with the lower part of the front support and the front part of the rear connecting rod, two end parts of the second connecting rod are respectively rotatably connected with the rear part of the front connecting rod and the lower part of the push rod assembly, the lower part of the push rod assembly is rotatably connected with the rear connecting rod, and the double-person stroller further comprises a front seat mechanism arranged on the front support and a rear seat mechanism arranged on the push rod assembly. The double-person stroller is convenient to fold, compact in structure after being folded, small in size, small in occupied space size, convenient to carry and store.

Description

A double stroller for children

technical field

The invention relates to the technical field of children's products, in particular to a double stroller for children.

Background technique

With the liberalization of the comprehensive two-child policy, there are more and more families with two children. In order to facilitate traveling with two children at the same time, the use of double strollers is becoming more and more common.

Since the structural size of the double stroller is relatively large, in order to facilitate the carrying and storage of the double stroller, the double stroller also needs to be able to be folded. In the prior art, most of the double strollers can be folded, but due to the structural limitations of the double strollers, the folded structure is still relatively large and occupies a large space, making it inconvenient to carry and store .

Contents of the invention

The object of the present invention is to address the shortcomings in the prior art and provide a double stroller for children, which is easy to fold and operate, and has a small structural volume after folding.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A double stroller comprising a stroller frame with unfolded and folded states and a first locking mechanism for locking the stroller frame in the unfolded state, the stroller frame includes a front bracket, a front connecting rod, rear connecting rod, first connecting rod, second connecting rod and push rod assembly, the lower part of the front bracket is provided with a front wheel assembly, the rear part of the rear connecting rod is provided with a rear wheel assembly, the front The front part of the connecting rod is rotatably connected with the front bracket, the rear part of the front connecting rod is rotatably connected with the front part of the rear connecting rod, and the two ends of the first connecting rod are connected with the front bracket respectively. The lower part is rotatably connected to the front part of the rear connecting rod, and the two ends of the second connecting rod are respectively rotatably connected to the rear part of the front connecting rod and the lower part of the push rod assembly. The lower part is rotatably connected with the rear link, and the double stroller also includes a front seat mechanism arranged on the front bracket and a rear seat mechanism arranged on the push rod assembly.

Preferably, the front seat mechanism includes a front seat pocket, and the double stroller further includes a seat pocket socket for installing the front seat pocket, and the seat pocket socket is arranged on the front bracket.

Further, the cart frame also includes an upper link, the upper part of the front bracket is rotationally connected with the front part of the seat pocket socket, and the upper end of the upper link is connected with the rear part of the seat pocket socket Rotationally connected, the lower end of the upper link is rotatably connected with the front link.

Further, when the double stroller is in the unfolded state, on the front link, the rotational connection between the front bracket and the front link, the connection between the upper link and the front link The rotation connection, the rotation connection between the front link and the rear link, and the rotation connection between the front link and the second link are sequentially arranged from front to back.

Preferably, when the double stroller is in the unfolded state, on the rear link, the rotational connection between the front link and the rear link, the first link and the rear link The rotational connection of the rod and the rotational connection of the push rod assembly and the rear connecting rod are sequentially arranged from front to rear.

Preferably, when the double stroller is in the unfolded state, on the front link, the rotational connection between the front bracket and the front link, the connection between the front link and the rear link The rotational connection, the rotational connection of the front connecting rod and the second connecting rod are sequentially arranged from front to rear.

Preferably, the rear seat mechanism includes a rear seat board, and the rear seat board is arranged on the push rod assembly.

Further, the rear seat board is rotatably arranged on the push rod assembly, and when the double stroller is folded, the rear seat board rotates relative to the push rod assembly and moves closer to the stroller frame .

Preferably, the double stroller further includes a footboard arranged under the rear seat, the second connecting rod is respectively arranged on the left and right sides of the double stroller, and the left and right sides of the footboard The ends are fixedly arranged on the second connecting rods on the corresponding side respectively.

Preferably, the push rod assembly includes an upper push rod and a lower push rod, the lower part of the upper push rod is rotatably connected to the upper part of the lower push rod, and both the second connecting rod and the rear connecting rod are connected to the The lower part of the lower push rod is rotationally connected, and the rotational connection between the second connecting rod and the lower push rod is located above the rotational connection between the rear connecting rod and the lower push rod, and the rear seat mechanism It is arranged on the lower push rod, and/or the double stroller further includes a second locking mechanism arranged between the lower part of the upper push rod and the upper part of the lower push rod, when the second The locking mechanism is unlocked, and the first locking mechanism is unlocked when the upper push rod is turned down and close to the lower push rod.

Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art: when the double stroller of the present invention is folded, the push rod assembly is rotated to move closer to the rear connecting rod, so that the second connecting rod rotates relative to the push rod assembly , and make the rotating joint of the front link and the rear link move upwards, and at the same time, the front link and the rear link rotate and close together, and move closer to the front bracket, so that the distance between the front wheel assembly and the rear wheel assembly gradually decreases Small. The double stroller is easy to fold and operate, has a compact structure after being folded, has a small volume, occupies a small space, and is easy to carry and store.

Description of drawings

Accompanying drawing 1 is the three-dimensional schematic view of the double stroller of the present embodiment in the unfolded state;

Accompanying drawing 2 is the side view schematic diagram of the double stroller of the present embodiment in the unfolded state;

Accompanying drawing 3 is the three-dimensional schematic view of the double stroller of this embodiment during the folding process (the second locking mechanism is unlocked, and the first locking mechanism is unlocked when the upper push rod is turned down and the lower push rod is moved closer);

Accompanying drawing 4 is the three-dimensional schematic diagram of the double stroller of this embodiment during the folding process (both the first locking mechanism and the second locking mechanism are unlocked, and the rods forming the stroller frame rotate with each other);

Accompanying drawing 5 is the three-dimensional schematic view of the double stroller of this embodiment in the folded state.

Among them: 11. Front bracket; 111. Front support rod; 112. Front wheel joint; 113. Connector; 12. Front connecting rod; 13. Rear connecting rod; 14. First connecting rod; 15. Second connecting rod; 16, push rod assembly; 161, upper push rod; 162, lower push rod; 17, upper connecting rod; 2, front wheel assembly; 3, rear wheel assembly; 41, first shaft; 42, second shaft; 43, The third axis; 44, the fourth axis; 45, the fifth axis; 46, the sixth axis; 47, the seventh axis; 48, the eighth axis; 5, seat pocket socket; 6, rear seat mechanism; 7, footboard ; 8. Locking parts.

Detailed ways

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

As shown in Figures 1 to 5, the double children's stroller of the present invention includes a stroller frame with unfolded and folded states, a front wheel assembly 2 arranged at the bottom front of the stroller frame, and a front wheel assembly 2 arranged on the stroller frame. The rear wheel assembly 3 at the bottom rear.

The stroller frame includes a front bracket 11 , a front link 12 , a rear link 13 , a first link 14 , a second link 15 and a push rod assembly 16 .

The front wheel assembly 2 is arranged at the bottom of the front bracket 11 , and the rear wheel assembly 3 is arranged at the rear of the rear link 13 . When the double stroller is in the unfolded state, the front connecting rod 12, the rear connecting rod 13, the first connecting rod 14, and the second connecting rod 15 all extend along the front-rear direction. Both the front bracket 11 and the push rod assembly 16 extend along the up and down direction.

The front part of the front link 12 is rotatably connected to the front bracket 11 via a first shaft 41 , and the rear part of the front link 11 is rotatably connected to the front part of the rear link 13 via a second shaft 42 .

The front end of the first link 14 is rotatably connected to the bottom of the front bracket 11 via a third shaft 43 , and the rear end of the first link 14 is rotatably connected to the front of the rear link 13 via a fourth shaft 44 .

The front end of the second connecting rod 15 is rotatably connected to the rear of the front connecting rod 12 through the fifth shaft 45 , and the rear end of the second connecting rod 15 is rotatably connected to the bottom of the push rod assembly 16 through the sixth shaft 46 .

The lower part of the push rod assembly 16 is rotationally connected with the rear connecting rod 13 through the seventh shaft 47 .

Like this, form a four-bar linkage mechanism between front bracket 11, front connecting rod 12, rear connecting rod 13 and first connecting rod 14, between rear connecting rod 13, front connecting rod 12, second connecting rod 15 and push rod A four-bar linkage is also formed between the components 16 .

The front bracket 11 includes front struts 111 respectively arranged on the left and right sides and a front wheel joint 112 fixedly arranged on the bottom of the front strut 111. The front wheel joint 112 is fixedly provided with a connecting piece 113 extending backward, and the front connecting rod The front part of 12 is rotatably connected to the front strut 111 via the first shaft 41 , and the front end of the first connecting rod 14 is rotatably connected to the connecting piece 113 via the third shaft 43 .

The front connecting rod 12, the rear connecting rod 13, the first connecting rod 14 and the second connecting rod 15 are respectively arranged on the left and right sides of the cart frame.

The push rod assembly 16 includes an upper push rod 161 and a lower push rod 162 , the lower part of the upper push rod 161 is rotatably connected to the upper part of the lower push rod 162 . In this embodiment, the upper push rod 161 has a U-shaped structure with the opening facing downward, the lower push rod 162 is respectively arranged on the left and right sides of the cart frame, and the two ends of the opening of the upper push rod 161 are respectively connected to the corresponding side. The top of the lower push rod 162 is rotatably connected. The rear end of the second connecting rod 15 is rotatably connected to the bottom of the lower push rod 162 via the sixth shaft 46 , and the bottom of the lower push rod 162 is rotatably connected to the rear connecting rod 13 via the seventh shaft 47 .

The double stroller also includes a front seat mechanism and a rear seat mechanism 6 , the front seat mechanism is arranged on the front bracket 11 , and the rear seat mechanism 6 is arranged on the push rod assembly 16 .

Front seat mechanism adopts front seat pocket, double stroller also includes seat pocket socket 5, and seat pocket socket 5 is arranged on the front support 11, and front seat pocket is connected with seat pocket socket 5. Thereby, the front seat pocket can be installed on the front bracket 11 . In this embodiment, the seat pocket socket 5 is arranged between the front struts 111 on the left and right sides.

Preferably, the seat pocket socket 5 is rotationally connected with the front bracket 11, so that when the double stroller is folded, the seat pocket socket 5 can be rotated relative to the front bracket 11, so that the seat pocket socket 5 and the stroller frame are moved closer.

The stroller frame also includes an upper link 17, and the upper link 17 is respectively arranged on the left and right sides of the seat pocket socket 5. In each side of the left and right sides, the top of the front strut 111 is rotatably connected with the front part of the seat pocket socket 5, the upper end of the upper link 17 is rotatably connected with the rear part of the seat pocket socket 5, and the lower end of the upper link 17 is and the front connecting rod 12 are rotationally connected through the eighth shaft 48 .

In this way, in each side of the left and right sides, a four-bar linkage mechanism is formed between the front strut 111 , the seat pocket socket 5 , the upper link 17 and the front link 12 . When the double stroller is folded and the front bracket 11 and the front connecting rod 12 rotate relatively, the four-bar linkage mechanism can drive the seat pocket socket 5 to rotate synchronously, so that when the double stroller is folded, there is no need to operate the seat pocket socket separately. 5 is rotated relative to the front bracket 11, so that the folding operation of the double stroller is more convenient. Moreover, there is no need to separately provide a locking mechanism to lock the position of the seat pocket socket 5, so that the structure of the double stroller is simple.

The rear seat mechanism 6 adopts a rear seat board, and the rear seat board is arranged on the lower push rod 162 .

Preferably, the rear seat board is rotatably connected with the lower push rod 162, so that when the double stroller is folded, the rear seat board can be rotated relative to the lower push rod 162, so that the rear seat board and the stroller frame are moved closer.

A fixing structure is also arranged between the rear seat board and the lower push rod 162, and when the double stroller is unfolded for use, the rear seat board can be fixed on the lower push rod 162 through the fixing structure.

The double stroller also includes a pedal 7, and the pedal 7 is arranged under the rear seat 6 for the child's feet to step on when the child rides on the rear seat 6. In this embodiment, the left and right ends of the footboard 7 are respectively fixed on the second connecting rod 15 on the corresponding side.

The double stroller also includes a first locking mechanism for locking the frame of the stroller in the unfolded state, and the first locking mechanism can be arranged between two parts connected in any rotation among the above three four-bar linkages. The first locking mechanism has locked and unlocked states. When the first locking mechanism is in the locked state, the relative positions of the rods constituting the cart frame are fixed. When the first locking mechanism is in the unlocked state, the cart frame can be folded, that is, the rods forming the cart frame can be relatively rotated and moved closer.

The double stroller also includes a second locking mechanism, which is arranged between the lower part of the upper push rod 161 and the upper part of the lower push rod 162 to lock the relative positions of the upper push rod 161 and the lower push rod 162 . The second locking mechanism has a locked state and an unlocked state. When the second locking mechanism is in the locked state, the relative positions of the upper push rod 161 and the lower push rod 162 are fixed. When the second locking mechanism is in the unlocked state, the upper push rod 161 can rotate relative to the lower push rod 162 and move closer to the lower push rod 162 .

In this embodiment, preferably the first locking mechanism is arranged between the front link 12 and the rear link 13 . A linkage mechanism is provided between the first locking mechanism and the upper push rod 161 . When the second locking mechanism is unlocked, when the upper push rod 161 turns downwards and moves closer to the lower push rod 162, the first locking mechanism can be driven to be unlocked through the linkage mechanism. In this way, when the double stroller is folded, as long as the second locking mechanism is unlocked and the upper push rod 161 is rotated relative to the lower push rod 162, the first locking mechanism can be unlocked. After the first locking mechanism is unlocked, the stroller frame It can be folded immediately, and there is no need to operate separately to unlock the first locking mechanism, so that the folding operation of the double stroller is convenient.

The first locking mechanism, the second locking mechanism and the specific structure for driving the unlocking of the second locking mechanism can all adopt structures in the prior art.

Linkage mechanism also can adopt the structure in the prior art, as the first locking mechanism comprises the lock piece 8 that is movably arranged on the front link 12 or the rear link 13, and the linkage mechanism includes the lock piece 8 that is arranged between the upper push rod 161 and the lock piece 8. Between the tow rope. When the upper push rod 161 turns downwards and moves closer to the lower push rod 162, the locking member 8 can be pulled by the traction cable to move relative to the front connecting rod 12 or the rear connecting rod 13, thereby unlocking the first locking mechanism.

Of course, the first locking mechanism and the second locking mechanism can also be independently operated and unlocked.

When the double stroller is in the unfolded state, the front bracket 11, the push rod assembly 16 and the upper link 17 all extend obliquely from the front to the rear, and the front bracket 11, the push rod assembly 16 and the upper link 17 are in an approximately parallel state . Both the front connecting rod 12 and the rear connecting rod 13 extend obliquely downward from the front to the rear, and the front connecting rod 12 and the rear connecting rod 13 extend approximately along the same straight line. Both the first connecting rod 14 and the second connecting rod 15 extend obliquely upward from front to rear, and the first connecting rod 14 and the second connecting rod 15 extend approximately along the same straight line. On the front connecting rod 12, the first shaft 41, the eighth shaft 48, the second shaft 42, and the fifth shaft 45 are sequentially arranged from front to back. On the rear connecting rod 13, the second shaft 42, the fourth shaft 44, and the seventh shaft 47 are sequentially arranged from front to back. The front seat pocket is installed on the seat pocket socket 5, and the front seat pocket can be used by a smaller child. The rear seat board is fixed on the lower push rod 162 by a fixed structure, and the rear seat board can be used for larger children to ride. As shown in Figure 1 and Figure 2.

When the double stroller is folded from the unfolded state, it can be folded with the front seat pocket removed from the stroller frame, or with the front seat pocket. When folding with the front seat pocket, fold the front seat pocket first, and then fold the stroller frame after the front seat pocket is folded.

The folding process of the trolley frame is: unlock the second locking mechanism, after the second locking mechanism is unlocked, press the upper push rod 161 downwards, so that the upper push rod 161 is turned backwards and turned downwards to approach the lower push rod 162 . During the overturning process of the upper push rod 161, the first locking mechanism is unlocked through the linkage mechanism, as shown in FIG. 3 . After the first locking mechanism is unlocked, the push rod assembly 16 is rotated to be close to the rear connecting rod 13, so that the second connecting rod 15 is rotated relative to the push rod assembly 16, and the rotational joint of the front connecting rod 12 and the rear connecting rod 13 is moved upwards At the same time, the front link 12 and the rear link 13 rotate relatively close together, and move closer to the front bracket 11, so that the distance between the front wheel assembly 2 and the rear wheel assembly 3 gradually decreases. The folding process is shown in Figure 4 until The bars that make up the cart frame are close together, and finally folded as shown in Figure 5. The folded double stroller is compact in structure, small in size, occupies a small space, and is easy to carry and store. Moreover, the folded double stroller can stand on the ground for easy storage.

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 (11)

1. A double stroller comprising a stroller frame having deployed and collapsed conditions and a first locking mechanism for locking the stroller frame in the deployed condition, characterized in that: the stroller frame comprises a front support, a front connecting rod, a rear connecting rod, a first connecting rod, a second connecting rod and a push rod assembly, wherein the front wheel assembly is arranged on the lower portion of the front support, the rear wheel assembly is arranged on the rear portion of the rear connecting rod, the front portion of the front connecting rod is connected with the front support in a rotating mode, the rear portion of the front connecting rod is connected with the front portion of the rear connecting rod in a rotating mode, the two end portions of the first connecting rod are connected with the lower portion of the front support and the front portion of the rear connecting rod in a rotating mode, the two end portions of the second connecting rod are connected with the rear portion of the front connecting rod and the lower portion of the push rod assembly in a rotating mode, the lower portion of the push rod assembly is connected with the rear connecting rod in a rotating mode, and the double-person stroller frame further comprises a front seat mechanism arranged on the front support and a rear seat mechanism arranged on the push rod assembly.

2. The double stroller of claim 1, wherein: the front seat mechanism comprises a front seat pocket, the double-person stroller further comprises a seat pocket socket for mounting the front seat pocket, and the seat pocket socket is arranged on the front support.

3. The double stroller of claim 2, wherein: the stroller frame further comprises an upper connecting rod, the upper portion of the front support is rotatably connected with the front portion of the seat pocket insertion opening, the upper end portion of the upper connecting rod is rotatably connected with the rear portion of the seat pocket insertion opening, and the lower end portion of the upper connecting rod is rotatably connected with the front connecting rod.

4. The double stroller of claim 3, wherein: when the double-person stroller is in the unfolded state, on the front connecting rod, the rotating connection position of the front bracket and the front connecting rod, the rotating connection position of the upper connecting rod and the front connecting rod, the rotating connection position of the front connecting rod and the rear connecting rod, and the rotating connection position of the front connecting rod and the second connecting rod are sequentially arranged from front to back.

5. The double stroller of claim 1, wherein: when the double-person stroller is in the unfolded state, the rotating connection position of the front connecting rod and the rear connecting rod, the rotating connection position of the first connecting rod and the rear connecting rod and the rotating connection position of the push rod assembly and the rear connecting rod are sequentially arranged on the rear connecting rod from front to back.

6. The double stroller of claim 1, wherein: when the double-person stroller is in the unfolded state, the rotating connection position of the front support and the front connecting rod, the rotating connection position of the front connecting rod and the rear connecting rod and the rotating connection position of the front connecting rod and the second connecting rod are sequentially arranged on the front connecting rod from front to back.

7. The double stroller of claim 1, wherein: the rear seat mechanism comprises a rear seat board, and the rear seat board is arranged on the push rod component.

8. The double stroller of claim 7, wherein: the rear seat board can be rotatably arranged on the push rod assembly, and when the double-child stroller is folded, the rear seat board is opposite to the push rod assembly, and the push rod assembly rotates to be close to the stroller frame.

9. The double stroller of claim 7, wherein: the double-person stroller further comprises a pedal arranged below the rear seat plate, the second connecting rods are respectively arranged on the left side and the right side of the double-person stroller, and the left end portion and the right end portion of the pedal are respectively fixedly arranged on the second connecting rods corresponding to one side.

10. The double stroller of claim 1, wherein: the push rod assembly comprises an upper push rod and a lower push rod, the lower portion of the upper push rod is connected with the upper portion of the lower push rod in a rotating mode, the second connecting rod is connected with the rear connecting rod in a rotating mode, the rotating connection position of the second connecting rod and the lower push rod is located above the rotating connection position of the rear connecting rod and the lower push rod, and the rear seat mechanism is arranged on the lower push rod.

11. The double stroller of claim 10, wherein: the double-person children's cart further comprises a second locking mechanism arranged between the lower portion of the upper push rod and the upper portion of the lower push rod, and when the second locking mechanism is unlocked, the upper push rod is driven to unlock when downwards overturned and the lower push rod is drawn close.

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