CN103072612B - A kind of can the children trolley of single double conversion - Google Patents

Abstract

The invention discloses a child stroller that can be converted between single and double persons, which includes a stroller frame, front and rear wheel assemblies, and a seat mechanism. The stroller frame includes a front wheel support, a push rod, a rear wheel support and a bottom support, wherein the bottom The bracket includes a bottom rod connected to the front wheel bracket and the rear wheel bracket, the lower end of the push rod is connected to the bottom rod, the upper end of the rear wheel bracket is connected to the push rod, and the front wheel assembly is arranged on the lower part of the front wheel bracket. The distance between the front wheel assembly and the rear wheel assembly is adjustable; the seat mechanism includes a front seat frame and a rear seat frame. The front seat connection part, the front bracket is arranged on the bottom bracket and has a state of being folded and opened relative to the bottom bracket; the rear seat frame includes a rear seat connection part installed on the push rod, the rear wheel bracket or the connection between the two. The switch between the single seat and the double seat of the cart is very simple and convenient, and the folding volume is small.

Description

A kind of children's stroller that can be converted into a single person and a double person

technical field

The invention relates to a child stroller which can be converted between single and double persons.

Background technique

Compared with traditional single-seater strollers and double-seater strollers, strollers that can be converted from single to double are favored by more consumers due to their advantages in function and resource saving. A baby stroller with simple structure, convenient operation and low cost, which can be converted between single and double persons, is the goal pursued by the designer of this type of stroller, and is also the key to making the product of this type of stroller competitive in the market.

Contents of the invention

The technical problem to be solved by the present invention is to provide a child stroller which can be converted between single and double persons with simple structure and convenient operation.

In order to solve the above technical problems, the present invention adopts the following technical solutions:

A child stroller that can be converted between single and double persons, comprising a stroller frame, a front wheel assembly and a rear wheel assembly respectively arranged at the front and rear of the stroller frame, and a seat mechanism; the stroller frame includes front wheel brackets, The push rod, the rear wheel bracket that is located on both sides and the lower end is provided with the rear wheel assembly. The bottom rod connected to the rear wheel bracket, the lower end of the push rod is connected to the bottom rod, the upper end of the rear wheel bracket is connected to the push rod, the front wheel assembly is arranged at the bottom of the front wheel bracket, the front wheel assembly and the rear wheel assembly The distance between them is adjustable; the seat mechanism includes a front seat frame and a rear seat frame respectively located at the front side and the rear side of the trolley frame, and the front seat frame includes front brackets located on both sides, which are arranged on the front bracket for At the front seat connection part connecting the front seat, the front bracket is arranged on the bottom bracket and has a state of being folded and opened relative to the bottom bracket; Rear seat connection.

Preferably, the front bracket includes a telescopic link rotatably connected to the bottom bar or the front wheel bracket at one end, and a front support bar rotatably connected to the other end of the telescopic link, and the front seat connection part is arranged on the front support bar .

Further, the front wheel bracket has side bars on both sides, the rear end of the side bars can be slidably arranged along the length direction of the bottom bar, the telescopic link is rotatably connected to the side bars, and the rotation axes of the two The direction is perpendicular to the sliding direction of the side stick. When the front bracket changes from a stowed state to an open state relative to the bottom bracket, the distance between the front wheel assembly and the rear wheel assembly increases.

Preferably, the front seat frame further includes a transverse link arranged between the front brackets on both sides and connecting the front brackets on both sides.

Preferably, the axis of rotation between the front support rod and the telescopic link, and the axis of rotation between the telescopic link and the side bar are parallel.

According to a specific aspect of the present invention, the front seat connecting portion and the rear seat connecting portion are respectively provided with a front seat universal interface and a rear seat universal interface capable of connecting seats.

According to another specific aspect of the present invention, the push rod and the bottom rod are rotatably and relatively slidably connected, the upper end of the rear wheel bracket is connected to the push rod in rotation, and the lower end is connected to the rear end of the bottom rod. Turn to connect.

Preferably, the push rod includes a lower push rod that is rotatably and relatively slidably connected between the lower end and the bottom rod, and an upper push rod that can slide inside the lower push rod.

More preferably, a connecting sleeve is rotatably connected to the bottom rod, and the lower end of the push rod passes through the connecting sleeve and can slide relative to the connecting sleeve.

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

The present invention is respectively provided with seat connecting part at the front and rear sides of the cart, wherein the seat connecting part on the front side is designed to have open and stowed states, and the distance between the front and rear wheel assemblies of the cart can be adjusted at the same time. When the stroller is converted from a single seat to a double seat, it is only necessary to increase the distance between the front and rear wheel assemblies and simultaneously open the front seat connecting portion, and then it becomes a double seat after the seat is connected. It is very simple and convenient to switch the stroller between single seater and double seater. Simultaneously, the structure of the present invention is simple, requires fewer rods, and is particularly easy to realize the foldable function. For example, according to the frame structure further provided by the present invention, the cart can be folded into a flat state conveniently, and the folding volume is small. .

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of a child's stroller in a single seat state according to the present invention;

Fig. 2 is the front schematic diagram of Fig. 1;

Fig. 3 is a three-dimensional schematic view of the baby stroller according to the present invention in the transition process from a single-seat state to a double-seat state;

Fig. 4 is the front schematic diagram of Fig. 3;

Fig. 5 is a three-dimensional schematic diagram when the stroller is in a double seat state according to the present invention;

Fig. 6 is a schematic front view of Fig. 5;

Fig. 7 is a three-dimensional schematic view of the child stroller in a fully folded state according to the present invention;

Figure 8 is a schematic front view of Figure 7;

Among them: 1. Front wheel assembly; 2. Rear wheel assembly; 3. Front wheel support; 30. Side rod; 4. Push rod; 40. Lower push rod; 41. Upper push rod; 5. Rear wheel support; 6. Bottom bracket; 60, bottom bar; 70, front bracket; 700, telescopic link; 701, front support bar; 71, front seat connection; 710, front seat universal interface; 72, horizontal link; 80, rear seat Connecting part; 800, universal interface of the rear seat; 9, connecting sleeve.

Detailed ways

As shown in Fig. 1 to Fig. 8, the children's stroller that can be converted from single to double according to the present embodiment mainly includes a stroller frame; a front wheel assembly 1 and a rear wheel assembly 2 respectively arranged at the front and rear of the stroller frame; mechanism. Wherein the trolley frame includes a front wheel bracket 3, a push rod 4 on both sides, a rear wheel bracket 5 on both sides and a rear wheel assembly 2 at the lower end, and a bottom bracket 6. And the bottom rod 60 that both ends are connected with the front wheel bracket 3 and the rear wheel bracket 5 respectively, the push rod 4 includes a lower push rod 40 that can be rotated and relatively slidably connected between the lower end and the bottom rod 60, and can be lowered. The upper push rod 41 that slides in the push rod 40 is rotatably and relatively slidably connected between the push rod 4 and the bottom rod 60, the upper end of the rear wheel bracket 5 is rotationally connected with the push rod 4, and the lower end is connected with the The rear end of the bottom bar 60 is rotatably connected, the upper end of the rear wheel bracket 5 is connected with the push rod 4, the front wheel assembly 1 is arranged at the bottom of the front wheel bracket 3, between the front wheel assembly 1 and the rear wheel assembly 2 The distance is set adjustable. The seat mechanism comprises a front seat frame and a rear seat frame respectively positioned at the front side and the rear side of the trolley frame, wherein the front seat frame comprises front brackets 70 positioned at both sides, and is arranged on the front bracket 70 for connecting the front seat. The front seat connecting part 71 and the transverse link 72 arranged between the front brackets 70 on both sides and connecting the front brackets 70 on both sides, the front bracket 70 includes an end connected to the bottom bar 60 or the front wheel bracket 3 The telescopic connecting rod 700 that is rotatably connected, the front support rod 701 that is rotatably connected with the other end of the telescopic connecting rod 700, the front seat connecting portion 71 is arranged on the front support rod 701, the front bracket 70 is arranged on the bottom bracket 6 and It has a state of being stowed and opened relative to the bottom bracket 6; the rear seat frame includes a rear seat connecting portion 80 installed on the push rod 4, the rear wheel bracket 5 or the connection between the two.

In this example, the front wheel bracket 3 has side bars 30 on both sides, the rear ends of the side bars 30 are slidably arranged along the length direction of the bottom bar 60, the telescopic link 700 is rotatably connected to the side bars 30, and The direction of the axis of rotation of the two is perpendicular to the sliding direction of the side bar. The axis of rotation between the front support rod 701 and the telescopic link 700 and the axis of rotation between the telescopic link 700 and the side bars are parallel. When the front bracket 70 changes from the stowed state to the opened state relative to the bottom bracket 6 , the distance between the front wheel assembly 1 and the rear wheel assembly 2 increases. The front seat connecting portion 71 and the rear seat connecting portion 80 are respectively provided with a front seat universal interface 710 and a rear seat universal interface 800 which can be connected to seats. A connecting sleeve 9 is rotatably connected to the bottom rod 60 , and the lower end of the push rod 4 passes through the connecting sleeve 9 and can slide relative to the connecting sleeve 9 .

The children's stroller that can be converted between single and double persons of the present invention, from the unfolded state to the folded state, the whole operation process is very simple and smooth, as follows: In the state of single-person riding, when the cart changes from single-person to double-person riding, as shown in Figure 3 to Figure 6, the front bracket is arranged on the bottom bracket and has a state of being folded and opened relative to the bottom bracket, and the front bracket is adjusted. The support bar is also in an open state, driving the telescopic link to rotate, thereby pushing the side bar connected to the end of the telescopic link to move along the length direction of the bottom bar, increasing the distance between the front wheel assembly and the rear wheel assembly, and moving the two The two seat pockets are respectively connected to the front seat connecting part and the rear seat connecting part, so that two people can ride on the same stroller. At the same time, when the two-person stroller is from the unfolded state to the folded state, the two seat pockets are removed. Adjust the front bracket to be in the retracted state relative to the bottom bracket. At this time, the telescopic link returns to its original shape, so that the space between the front wheel assembly and the rear wheel assembly returns to the original state, and then slide the rear wheel bracket to the bottom of the push rod, and Put the upper push rod in the lower push rod, then turn the lower push rod, and use the relative rotation and sliding relationship between the lower push rod and the bottom rod to fold the lower push rod toward the bottom bracket, thus completing the folding of the entire frame. The folded shape is shown in Figure 7 and Figure 8.

In summary, the present invention is respectively provided with seat connecting parts on the front and rear sides of the cart, wherein the seat connecting parts on the front side are designed to have open and stowed states, and the distance between the front and rear wheel assemblies of the cart can be adjusted In this way, when the stroller is converted from a single seat to a double seat, it is only necessary to increase the distance between the front and rear wheel assemblies and open the front seat connecting portion at the same time, and then it becomes a double seat after the seat is connected. It is very simple and convenient to switch the stroller between single seater and double seater. Simultaneously, the structure of the present invention is simple, requires fewer rods, and is particularly easy to realize the foldable function. For example, according to the frame structure further provided by the present invention, the cart can be folded into a flat state conveniently, and the folding volume is small. .

The present invention has been described in detail above, and its purpose is to allow those familiar with this field to understand the content of the present invention and implement it, and can not limit the scope of protection of the present invention. Effect changes or modifications should be covered within the protection scope of the present invention.

Claims (8)

1. A child stroller that can be converted between single and double persons, comprising a stroller frame, a front wheel assembly (1) and a rear wheel assembly (2) respectively arranged at the front and rear of the stroller frame, and a seat mechanism, the The trolley frame includes a front wheel bracket (3), push rods (4) on both sides, and a rear wheel bracket (5) on both sides with the rear wheel assembly (2) at the lower end, which is characterized in that: The trolley frame further includes a bottom bracket (6), and the bottom bracket (6) includes two ends on both sides that are respectively connected to the front wheel bracket (3) and the rear wheel bracket (5). connected bottom rod (60), the lower end of the push rod (4) is connected with the bottom rod (60), the upper end of the rear wheel bracket (5) is connected with the push rod (4 ), the front wheel assembly (1) is set at the lower part of the front wheel bracket (3), and the distance between the front wheel assembly (1) and the rear wheel assembly (2) is adjustable The seat mechanism includes a front seat frame and a rear seat frame respectively located at the front side and the rear side of the cart frame, and the front seat frame includes front brackets (70) located on both sides, arranged on the The front seat connection part (71) used to connect the front seat on the front bracket (70), the front bracket (70) is arranged on the bottom bracket (6) and has a Stowed and opened state; the rear seat frame includes a rear seat connection part (80) installed on the push rod (4), the rear wheel bracket (5) or the connection between the two, the The front bracket (70) includes a telescopic link (700) with one end rotatably connected to the bottom bar (60) or the front wheel bracket (3), and the other end of the telescopic link (700) The front support bar (701) that is rotatably connected with each other, the front seat connection part (71) is set on the front support bar (701), the front seat connection part (71) and the rear seat connection part ( 80) are respectively provided with a front seat universal interface (710) and a rear seat universal interface (800) which can be connected to the seat. 2. The baby stroller that can be converted between single and double persons according to claim 1, characterized in that: the front wheel support (3) has side bars (30) on both sides, and the side bars (30) The rear end is slidably arranged along the length direction of the bottom bar (60), the telescopic link (700) is rotatably connected with the side bar (30), and the rotation axes of the two The direction is perpendicular to the sliding direction of the side bar (30). 3. The baby stroller that can be converted between single and double persons according to claim 1, characterized in that: when the front bracket (70) is relative to the bottom bracket (6) from the stowed state to the open state When changing, the distance between the front wheel assembly (1) and the rear wheel assembly (2) increases. 4. The single- and double-person convertible baby stroller according to claim 1, characterized in that: said front seat frame also includes front brackets (70) arranged between the two sides, and the front brackets (70) on both sides The transverse connecting rod (72) that links to each other with frame (70). 5. The baby stroller that can be converted between single and double persons according to claim 2, characterized in that: the rotation axis between the front support rod (701) and the telescopic link (700), the The axis of rotation between the telescopic link (700) and the side bar (30) is parallel. 6. The child stroller that can be converted between single and double persons according to any one of claims 1 to 5, characterized in that: the phase between the push rod (4) and the bottom rod (60) can be rotated The upper end of the rear wheel bracket (5) is rotatably connected to the push rod (4), and the lower end is rotatably connected to the rear end of the bottom rod (60). 7. The child stroller that can be converted between single and double persons according to claim 6, characterized in that: the push rod (4) includes a rotatable and relatively sliding connection between the lower end and the bottom rod (60). A connected lower push rod (40) and an upper push rod (41) capable of sliding inside the lower push rod (40). 8. The baby stroller that can be converted between single and double persons according to claim 6, characterized in that: the bottom rod (60) is rotatably connected with a connecting sleeve (9), and the lower end of the push rod (4) Pass through the connecting sleeve (9) and be able to slide relative to the connecting sleeve (9).