CN207565663U - Go-cart for double child - Google Patents

Abstract

The utility model discloses a double-person stroller for children, which simplifies the folding operation steps and has small folding volume. It includes: a front bracket, the front seat mechanism is arranged on the front bracket; a rear bracket; an upper link, two components in the upper end of the front bracket, the upper end of the rear bracket and the lower end of the upper link are connected in rotation, and the third The first part is rotatably connected with at least one of the aforementioned two parts; the upper push rod is rotatably connected with the upper end of the lower part and the upper link; the lower push rod is rotatably connected with the upper end and the lower end of the upper push rod, and the lower part is connected with the rear bracket Rotational connection; the link assembly is composed of a front link that is rotatably connected with the front bracket, and a rear link that is rotatably connected with the rear bracket. The rear end of the front link is rotatably connected with the front end of the rear link; the lower push rod The lower end is connected with the connecting rod assembly; the front seat mechanism includes a front seat post and a front seat post connector, the front seat post is rotatably connected with the front bracket, the front seat post connector is rotatably connected with the front seat post, and the front seat post connector is rotatably connected with the link assembly.

Description

double stroller

technical field

The utility model belongs to the field of children's products, in particular to a double-person stroller for children.

Background technique

At present, there are various structures of double strollers. A common double stroller includes a vehicle frame, a front wheel assembly and a rear wheel assembly installed below the vehicle frame, and a seat mechanism connected to the vehicle frame. In order to facilitate two people to ride, usually the seat mechanism includes a front seat mechanism and a rear seat mechanism that are arranged on the vehicle frame one after the other. Most of the existing two-person strollers have a relatively large folding volume, and the folding operation is relatively cumbersome. Usually, multi-step operations are required to achieve folding.

Utility model content

In view of the above problems, the purpose of this utility model is to provide a double stroller for children, which simplifies the folding operation steps and is easy to fold.

In order to achieve the above object, the technical scheme adopted by the utility model is as follows:

A double stroller, comprising a vehicle frame with an unfolded state and a folded state, a front wheel assembly, a rear wheel assembly, a front seat mechanism and a rear seat mechanism, and a locking mechanism for locking the vehicle frame in the unfolded state, the The vehicle frame includes two side supports respectively located on the left and right sides;

Each of said side brackets respectively includes:

The front bracket, the front wheel assembly is installed on the lower part of the front bracket, the front seat mechanism is arranged on the front bracket, and the rear seat mechanism is arranged on the vehicle frame behind the front seat mechanism. position;

a rear bracket, the rear wheel assembly is installed on the lower part of the rear bracket;

The upper link, the upper end of the front bracket, the upper end of the rear bracket and the lower end of the upper link are rotatably connected, and the third component is connected to at least one of the aforementioned two components Phase rotation connection;

an upper push rod, the lower part of the upper push rod is rotatably connected to the upper end of the upper link through a first pivot;

The lower push rod, the upper end of the lower push rod is rotatably connected to the lower end of the upper push rod through a second pivot, and the lower part of the lower push rod is rotatably connected to the rear bracket through a third pivot ;as well as

The link assembly is connected between the front bracket and the rear bracket, and the link assembly includes a front link that is rotatably connected with the front end and the front bracket through a fourth pivot, and the rear end and the rear end. The rear bracket is rotatably connected to the rear link through the fifth pivot, the rear end of the front link is rotatably connected to the front end of the rear link through the sixth pivot; the lower end of the lower push rod The part is connected with the connecting rod assembly to drive the front connecting rod and the rear connecting rod to move closer or unfold;

Wherein the front seat mechanism includes a front seatpost and a front seatpost connecting piece, the front seatpost and the front bracket are rotatably connected by an eleventh pivot, the upper end of the front seatpost connecting piece is connected to the rear of the front seatpost The ends are rotatably connected by a twelfth pivot, and the lower end of the front seat post connector is rotatably connected by a thirteenth pivot with the link assembly.

In some embodiments, the lower end of the front seat post connector is rotatably connected to the front link through the thirteenth pivot, and the front bracket, the front seat post, the front seat post connector, The front connecting rod constitutes a four-bar linkage mechanism; the lower end of the lower push rod is connected to the rear connecting rod through a push rod connector, and the rear bracket, the lower push rod, and the push rod connector , The rear connecting rod constitutes a four-bar linkage.

In some embodiments, one end of the push rod connector is rotatably connected to the rear link through a seventh pivot, and the other end is rotatably connected to the lower end of the lower push rod through an eighth pivot. , the third pivot is located between the second pivot and the eighth pivot. Preferably, said seventh pivot is located before said eighth pivot. More preferably, when the vehicle frame is in the unfolded state, the centerlines of the front link, the rear link and the push rod connector respectively extend in the front-rear direction and are parallel to each other, A triangular structure is formed between the lower push rod, the rear connecting rod and the rear bracket.

In some embodiments, the lower end of the lower push rod is rotatably and slidably connected to the rear link.

In some embodiments, when the vehicle frame is in the folded state, the rear end of the front link, the front end of the rear link, the lower end of the lower push rod, the upper push rod The upper end and the upper end of the rear bracket are close to each other; the lower end of the front bracket, the front end of the front link, the rear end of the rear link, the upper end of the upper link, the The upper end of the lower push rod, the lower end of the upper push rod and the lower end of the rear bracket are close to each other.

In some embodiments, the upper end of the rear frame has a rear frame connector, and the front part of the front frame and the rear frame connector are rotatably connected by a ninth pivot. When the vehicle frame is in the unfolded state At this time, an included angle α is formed between the line connecting the fourth pivot axis and the ninth pivot axis of the same side bracket and the horizontal plane, and the included angle α is less than 45°.

In some embodiments, the front bracket includes a front portion that extends obliquely and an extension portion bent backward from the front portion, the front wheel assembly is arranged on the front portion, the extension portion and the extension portion The rear bracket connector is rotatably connected by the ninth pivot, and when the vehicle frame is in the unfolded state, the extension part extends horizontally along the front and rear direction of the vehicle frame; when the vehicle frame is in the folded state, the The rear support connector is in a horizontal state.

In some embodiments, the distance between the front wheel assemblies on both sides is greater than the distance between the rear wheel assemblies on both sides, and when the frame is in the folded state, the rear wheel assemblies on both sides are accommodated on both sides between the front wheel assemblies.

In some embodiments, the first pivot, the second pivot, the third pivot, the fourth pivot, the fifth pivot, the sixth pivot, the eleventh pivot, the twelfth pivot and The axis lines of the thirteenth pivot are parallel to each other.

In some embodiments, the rear seat mechanism includes a first rear seat post, a second rear seat post slidably connected to the first rear seat post in the front-rear direction, the first rear seat post is connected to the first rear seat post The rear bracket is rotatably connected through a tenth pivot, and the second rear seat post is rotatably connected with the lower push rod through a fourteenth pivot. Preferably, the second rear seat post is slidably inserted in the first rear seat post along the front-rear direction, and can expand and contract with the folding and unfolding of the vehicle frame.

In combination with the above, the utility model adopts the above technical scheme, and has the following advantages compared with the prior art:

Simplifies the folding operation steps. After unlocking, press the push rod forward and downward to fold the side bracket, and the front seat post can also be folded along with the side bracket, realizing the folding of the whole vehicle, which can be quickly completed and folded conveniently; and The double stroller is compact when folded.

Description of drawings

In order to illustrate the technical solution of the utility model more clearly, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the utility model. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.

Fig. 1 shows a side view of a double stroller for children according to the present invention in an unfolded state;

Fig. 2 shows a perspective view of a double stroller for children according to the present invention when it is deployed;

Fig. 3 shows a side view of a double stroller in the folding process according to the present invention;

Fig. 4 shows a perspective view of a double stroller in the folding process according to the present invention;

Fig. 5 shows a side view of a double stroller in a folded state according to the present invention;

Fig. 6 shows a perspective view of a double stroller in a folded state according to the present invention.

in,

1, side bracket; 11, front bracket; 11a, front part; 11b, extension section; 12, rear bracket; 120, rear bracket connector; 13, upper link; 130, upper link connector; 14, push up Rod; 15, lower push rod; 16, push rod connector; 17, rear connecting rod; 18, front connecting rod;

101. First pivot; 102. Second pivot; 103. Third pivot; 104. Fourth pivot; 105. Fifth pivot; 106. Sixth pivot; 107. Seventh pivot; 108 , the eighth pivot; 109, the ninth pivot; 110, the tenth pivot; 111, the eleventh pivot; 112, the twelfth pivot; 113, the thirteenth pivot; 114, the fourteenth pivot axis;

2. Front wheel assembly;

3. Rear wheel assembly;

4. Front seat mechanism; 41. Front seat post; 42. Front seat post connector;

5. Rear seat mechanism; 51. The first rear seat post; 52. The second rear seat post;

6. Locking mechanism; 61. Locking piece.

Detailed ways

The preferred embodiments of the utility model will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the utility model can be more easily understood by those skilled in the art. It should be noted here that the descriptions of these implementations are used to help understand the utility model, but are not intended to limit the utility model. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute conflicts with each other.

The orientation words mentioned in this article are defined according to the customary viewing angles of those skilled in the art for the orientation of the children's dining chair in the unfolded state.

This embodiment provides a double stroller for children, as shown in accompanying drawings 1-6, it includes a vehicle frame with an unfolded state and a folded state, a front wheel assembly 2, a rear wheel assembly 3, a front seat mechanism 4 arranged front and rear, and A rear seat mechanism 5 and a locking mechanism 6 for locking the frame in the unfolded state. The vehicle frame includes two side brackets 1 respectively located on the left and right sides. Each side bracket 1 includes a front bracket 11 , a rear bracket 12 , an upper link 13 , an upper push rod 14 , a lower push rod 15 and a link assembly. Each component of each side bracket 1 will be described one by one below.

The bottom of the front bracket 11 is equipped with the front wheel assembly 2, the front seat mechanism 4 is arranged on the front bracket 11, and the rear seat mechanism 5 is arranged on the vehicle frame at a position behind the front seat mechanism 4. Specifically in this embodiment, the front bracket 11 includes a front portion 11a extending obliquely and an extension portion 11b bent backward from the upper end of the front portion 11a, and the front wheel assembly 2 is specifically arranged on the front portion 11a . The extension part 11b extends horizontally along the front-rear direction of the vehicle frame, that is to say, the extension part 11b is substantially horizontal when the vehicle frame is in an unfolded state. The front seat mechanism 4 is specifically arranged on the front part 11 a of the front bracket 11 .

A rear wheel assembly 3 is mounted on the bottom of the rear support 12 . In this embodiment, the distance between the rear wheel assemblies 3 on both sides is smaller than the distance between the front wheel assemblies 2 on both sides, so that after folding, the rear wheel assemblies 3 on both sides can be accommodated between the front wheel assemblies 2 on both sides, reducing The folded volume is reduced. Therefore, in a preferred manner, the lower end of the rear bracket 12 is bent and extended toward the side bracket 1 on the other side (inward), so that the distance between the lower ends of the rear bracket 12 on the left and right sides of the vehicle frame is smaller than the distance between the upper ends. .

Two components in the upper end of the front bracket 11, the upper end of the rear bracket 12 and the lower end of the upper link 13 are rotatably connected, and the third component is rotatably connected to at least one of the aforementioned two components. That is to say, the upper end of the front bracket 11, the upper end of the rear bracket 12, and the lower end of the upper link 13 are connected in a coaxial rotation or connected in two relative rotation; Two of the upper end of the upper link and the lower end of the upper link 13 are rotatably connected through a pivot, and the remaining one is rotatably connected with one of the two through another pivot, as shown in Figure 1-6 shown in the setup method. Specifically in this embodiment, a rear bracket connector 120 is formed on the upper end of the rear bracket 12, and the rear bracket connector 120 is fixedly connected or integrally formed with other parts of the rear bracket 12; The front part of the bracket connector 120 is rotatably connected through the ninth pivot 109 , and the rear part of the upper link 13 and the rear bracket connector 120 is rotatably connected through the tenth pivot 110 .

The lower part of the upper push rod 14 and the upper end of the upper connecting rod 13 are rotatably connected through the first pivot 101 .

The upper end of the lower push rod 15 and the lower end of the upper push rod 14 are rotatably connected through the second pivot 102, the second pivot 102 is located below the first pivot 101, and the bottom of the lower push rod 15 and the rear bracket 12 pass through the second pivot 102. The three pivots 103 are rotatably connected.

The link assembly can be connected between the front frame 11 and the rear frame 12 in a close or unfolded manner. The link assembly is composed of a front link 18 that is rotatably connected to the front part 11a of the front support 11 through the fourth pivot 104, and a rear link 17 that is rotatably connected to the rear end and the rear support 12 through the fifth pivot 105. Composition, the rear end portion of the front link 18 and the front end portion of the rear link 17 are rotatably connected through the sixth pivot 106 . The third pivot 103 on the rear bracket 12 is located between the tenth pivot 110 and the fifth pivot 105 . The lower end of the lower push rod 15 is connected to the connecting rod assembly to drive the front connecting rod 18 and the rear connecting rod 17 to move closer or unfold, and the connection is located below the third pivot 103 .

Specifically in this embodiment, the lower end of the lower push rod 15 is connected to the connecting rod assembly through a push rod connecting piece 16, and one end of the pushing rod connecting piece 16 is rotatably connected to the connecting rod assembly through the seventh pivot 107, and the other One end is rotatably connected to the lower end of the lower push rod 15 through the eighth pivot 108 . The third pivot 103 on the lower push rod 15 is located between the second pivot 102 and the eighth pivot 108 . Specifically as shown in FIG. 1 , the one end of the push rod connecting member 16 is rotatably connected with the rear link 17 through the seventh pivot 107 , and the seventh pivot 107 is located in front of the eighth pivot 108 . That is to say, the four-bar linkage mechanism formed between the lower push rod 15, the push rod connector 16, the rear link 17 and the rear bracket 12 drives the linkage assembly to move closer or unfold, and the front bracket 11 and the rear bracket 12 are thereupon close together or spread out.

As for the connection manner between the lower push rod 15 and the connecting rod assembly, in an alternative embodiment, the lower end of the lower push rod 15 is rotatably and slidably connected to the rear connecting rod 17 . For example, the lower end of the lower push rod 15 is rotatably and slidably connected to the rear connecting rod 17 through a sliding sleeve. It is rotatably connected with the lower end of the lower push rod 15, thereby constituting a slider crank mechanism to replace the above-mentioned four-bar linkage mechanism. When folding, the lower push rod 15 overturns to drive the sliding sleeve to move, and the rear connecting rod 17 turns up and moves closer to the front connecting rod 18 under the action of the sliding sleeve.

It should also be noted that the lower push rod 15 and the push rod connector 16 connected between the rear link 17 and the rear bracket 12 also have the effect of increasing the stability of the vehicle frame. In a preferred manner, when the vehicle frame is in the unfolded state, the centerlines of the front link 18 , the rear link 17 and the push rod connector 16 respectively extend along the front-rear direction and are parallel to each other. That is to say, when the vehicle frame is unfolded, the push rod connector 16 and the rear link 17 overlap, so that a triangular structure is formed between the lower push rod 15, the rear link 17, and the rear bracket 12, which enhances the stability of the vehicle frame in the unfolded state. The stability at the time helps the frame stabilize in the unfolded state.

As shown in Figure 1, when the vehicle frame is in the unfolded state, an angle α is formed between the line connecting the fourth pivot 104 and the ninth pivot 109 of the same side bracket 1 and the horizontal plane, the fourth pivot 104 and the ninth pivot 109 An included angle β is formed between the connecting line of the pivot 109 and the connecting line of the ninth pivot 109 and the fifth pivot 105, the included angle α is less than 45°, and the included angle β is greater than 90°, so that the front support 11 and the rear support 12 The size is larger in the front-rear direction, so as to provide enough space for setting the front seat mechanism 4 and the rear seat mechanism 5 .

As shown in Figures 5 and 6, when the vehicle frame is in the folded state, the rear bracket connector 120 is in a horizontal state, the upper end of the upper push rod 14 is substantially flat with the rear bracket connector 120, and the rear end of the front link 18, The front end portion of the rear link 17, the lower end portion of the lower push rod 15 and the rear bracket connector 120 are close together; Generally close behind the rear bracket 12 vertically; the rear wheel assemblies 3 on both sides are accommodated between the front wheel assemblies 2 on both sides; the upper end of the upper link 13, the upper end of the lower push rod 15, and the lower push rod The lower end of 15 draws close to rear wheel assembly 3.

It should be noted that the front seat mechanism 4 in this embodiment can be folded together with the side bracket 1, which simplifies the folding steps. Wherein, the front seat mechanism 4 includes a front seat post 41 for forming a front seat, the front seat post 41 and the front bracket 11 are rotatably connected by the eleventh pivot 111, and the rear end of the front seat post 41 is connected with the link assembly to be formed by The connecting rod assembly drives the rotation. Specifically, the front seat mechanism 4 also includes a front seat post connector 42, the upper end of the front seat post connector 42 and the rear end of the front seat post 41 are rotatably connected by the twelfth pivot 112, and the lower end of the front seat post connector 42 It is rotationally connected with the front link 18 through the thirteenth pivot 113 to form a four-bar linkage. The fourth pivot 104, the thirteenth pivot 113, the sixth pivot 106, the seventh pivot 107, the eighth pivot 108, and the fifth pivot 105 on the same side of the vehicle frame are connected with the front link 18 and the rear link. The directions parallel to the center lines of the rods 17 are arranged at intervals in sequence. The eleventh pivot 111 on the front bracket 11 is located between the ninth pivot 109 and the fourth pivot 104 .

The rear seat mechanism 5 includes a first rear seat rod 51 for forming a rear seat and a second rear seat rod 52 that is slidably connected to the first rear seat rod 51 in the front-rear direction, the first rear seat rod 51 and the rear bracket 12 The tenth pivot 110 is rotatably connected, and the second rear seat post 52 is rotatably connected to the lower push rod 15 through the fourteenth pivot 114 . Specifically, the second rear seat post 52 is slidably inserted in the first rear seat post 51 along the front-rear direction. The outer length increases. When the vehicle frame is folded and unfolded, the first rear seat post 51 and the second rear seat post 52 slide relative to each other to expand and contract.

The locking mechanism 6 in this embodiment is arranged between the upper end of the upper link 13 and the lower end of the upper push rod 14 . The locking mechanism 6 specifically includes a locking piece 61 disposed on the lower end of the upper push rod 14 , and the locking piece 61 is detachably connected to the upper end of the upper connecting rod 13 . When the locking member 61 is separated from the upper link 13, the locking mechanism 6 is unlocked, and the vehicle frame can be folded; when the locking member 61 is connected to the upper link 13, the locking mechanism 6 locks the vehicle frame in an unfolded state.

The lower ends of the front brackets 11 of the two side brackets 1 are directly connected to form a U-shaped structure; the lower ends of the rear brackets 12 of the two side brackets 1 are connected by a cross bar assembly; the upper ends of the upper push rods 14 of the two side brackets 1 Directly connected or connected through intermediate parts to form a semi-frame structure. The front ends of the two front seatposts 41 of the front seat mechanism 4 respectively arranged on the front brackets 11 on both sides are directly connected or connected through intermediate parts to form a semi-frame structure. The front ends of the two first rear seat rods 51 that are respectively arranged on the rear brackets 12 on both sides of the rear seat mechanism 5 are directly connected or connected by intermediate components to form a semi-frame structure, and the rear seat mechanism 5 is respectively arranged on The rear ends of the two second rear seat rods 52 on the lower push rods 15 on both sides are connected directly or through intermediate parts to form a semi-frame structure.

The first pivot 101, the second pivot 102, the third pivot 103, the fourth pivot 104, the fifth pivot 105, the sixth pivot 106, the seventh pivot 107, the eighth pivot of each side bracket 1 The axis lines of the pivot 108, the ninth pivot 109, the tenth pivot 110, the eleventh pivot 111, the twelfth pivot 112, the thirteenth pivot 113, and the fourteenth pivot 114 are parallel to each other and extend horizontally along the left and right directions of the vehicle frame respectively. The axis lines of the corresponding pivots of the two side brackets 1 are preferably mutually coincident, such as the axis lines of the first pivots 101 on both sides coincide with each other; the axis lines of the second pivots 102 on both sides overlap each other Coincident etc. This further reduces the volume of the double stroller after it is folded.

The folding principle of the above-mentioned double stroller is as follows:

In each side bracket 1, the upper push rod 14, the lower push rod 15, the rear bracket 12, and the upper link 13 are between the first pivot 101, the second pivot 102, the third pivot 103 and the tenth pivot 110. Between the first four-bar linkage mechanism; the rear bracket 12 and the lower push rod 15 are between the tenth pivot 110, the third pivot 103, the fifth pivot 105, the first rear seat post 51 and the second rear seat post 52 Between the connecting rod sliding sleeve mechanism; the front support 11, the rear support 12, the rear link 17, and the front link 18 are between the ninth pivot 109, the fifth pivot 105, the sixth pivot 106 and the fourth pivot 104. The second four-bar linkage mechanism is formed between them; the rear bracket 12, the rear link 17, the push rod connector 16, and the lower push rod 15 are on the third pivot 103, the fifth pivot 105, the seventh pivot 107 and the eighth pivot The third four-bar linkage mechanism is formed between the shafts 108; 113 and the fourth pivot 104 form the fourth four-bar linkage; when folding, unlock the upper link 13 and the upper push rod 14, push the upper push rod 14 forward and downward, and the first four-bar linkage begins to fold, The second four-bar linkage mechanism is driven to fold, and at the same time, the length of the second rear seat post 52 extending beyond the first rear seat post 51 increases accordingly, and the third four-bar linkage mechanism and the fourth four-bar linkage mechanism are also folded accordingly .

As shown in Figures 1 and 2, when the frame is in the unfolded state, the locking mechanism 6 locks the upper link 13 and the upper push rod 14, the extension 11b of the front bracket 11 is generally horizontal, the center line of the front link 18, the rear The center line of the connecting rod 17 and the center line of the push rod connector 16 respectively extend along the front-rear direction and are parallel to each other. The fourth pivot 104, the thirteenth pivot 113, the sixth pivot 106, the seventh The pivot 107 , the eighth pivot 108 , and the fifth pivot 105 are sequentially arranged at intervals along a direction parallel to the centerlines of the front link 18 and the rear link 17 .

As shown in Figures 3 and 4, the folding process of the double stroller is as follows:

The locking mechanism 6 is unlocked; along the direction shown by the arrow in FIG. To turn upwards, the push rod connector 16 is first driven to turn around the seventh pivot 107, and then the rear link 17 is turned upwards around the fifth pivot 105 driven by the push rod connector 16, so that the rear end of the front link 18 1. The front end of the rear link 17 moves closer to the rear bracket connector 120, and the front end of the front link 18 and the rear end of the rear link 17 approach each other, thereby driving the front bracket 11 and the rear bracket 12 to move closer to each other. The wheel assembly 2 and the rear wheel assembly 3 move closer to each other; meanwhile, as the front end of the front link 18 and the rear end of the rear link 17 approach each other, the front bracket 11 and the front link 18 also move closer to each other, so that the front seat post 41 and the front seat post connector 42 are also close to each other so that the rear end of the front seat post 41 leans against the rear bracket connector 120, and the front seat post 41 turns around the eleventh pivot 111 and leans against the front bracket 11; The third pivot 103 turns over, and the second rear seat post 52 is stretched so that the length of sliding out of the first rear seat post 51 increases.

As shown in Figures 5 and 6, when the vehicle frame is in the folded state, the rear bracket connector 120 is substantially horizontal, the rear end of the front seatpost 41, the rear end of the front link 18, the front end of the rear link 17, the pusher The rear end of the rod connector 16, the lower end of the lower push rod 15, the upper end of the upper push rod 14 and the rear bracket connector 120 are close to each other, wherein the upper end of the upper push rod 14 is substantially flat with the rear bracket connector 120; The lower end of the front bracket 11 and the lower end of the rear bracket 12 move closer to each other so that the front wheel assembly 2 and the rear wheel assembly 3 move closer to each other, and the rear wheel assemblies 3 on both sides are accommodated between the front wheel assemblies 2 on both sides, and the front seat post 41, the front end of the front connecting rod 18, the rear end of the rear connecting rod 17, the lower end of the upper push rod 14, the upper end of the upper connecting rod 13, the upper end of the lower push rod 15 and the front wheel assembly 2 1. The rear wheel assembly 3 is close to each other, wherein both the front wheel assembly 2 and the rear wheel assembly 3 can contact the ground; the front part 11a of the front bracket 11, the upper link 13 and the upper push rod 14 are generally in a vertical state.

It can be seen from the above description that, on the one hand, the double stroller according to the present invention simplifies the folding operation steps, and after unlocking, pressing the push rod 14 forward and downward can make the side bracket and the front seat mechanism fold and fold, realizing the whole vehicle Folding can quickly complete the folding; on the other hand, the double stroller for children according to the utility model has a small volume after being folded. In addition, the double stroller for children according to the utility model has better stability in the unfolded state.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present utility model, and are preferred implementation modes. The purpose is that those familiar with this technology can understand the content of the present utility model and implement it accordingly, and this utility model cannot be limited thereto. scope of protection.

Claims (10)

1. A double children's barrow comprises a frame with an unfolding state and a folding state, a front wheel assembly, a rear wheel assembly, a front seat mechanism, a rear seat mechanism and a locking mechanism for locking the frame in the unfolding state, wherein the frame comprises two side brackets which are respectively positioned at the left side and the right side;

characterized in that each side bracket comprises:

the front wheel assembly is mounted at the lower part of the front bracket, the front seat mechanism is arranged on the front bracket, and the rear seat mechanism is arranged on the frame at a position behind the front seat mechanism;

the lower part of the rear bracket is provided with the rear wheel assembly;

two parts of the upper end part of the front bracket, the upper end part of the rear bracket and the lower end part of the upper connecting rod are rotationally connected, and the third part is rotationally connected with at least one of the two parts;

the lower part of the upper push rod is rotationally connected with the upper end part of the upper connecting rod through a first pivot;

the upper end part of the lower push rod is rotatably connected with the lower end part of the upper push rod through a second pivot, and the lower part of the lower push rod is rotatably connected with the rear support through a third pivot; and

the connecting rod assembly is connected between the front bracket and the rear bracket and comprises a front connecting rod and a rear connecting rod, the front connecting rod is rotatably connected with the front bracket through a fourth pivot, the rear connecting rod is rotatably connected with the rear bracket through a fifth pivot, and the rear end of the front connecting rod is rotatably connected with the front end of the rear connecting rod through a sixth pivot; the lower end part of the lower push rod is connected with the connecting rod assembly to drive the front connecting rod and the rear connecting rod to mutually draw close or unfold;

the front seat mechanism comprises a front seat rod and a front seat rod connecting piece, the front seat rod is rotatably connected with the front support through an eleventh pivot, the upper end of the front seat rod connecting piece is rotatably connected with the rear end of the front seat rod through a twelfth pivot, and the lower end of the front seat rod connecting piece is rotatably connected with the connecting rod assembly through a thirteenth pivot.

2. The double stroller of claim 1, wherein the lower end of the front seat bar linkage and the front link are pivotally connected by the thirteenth pivot, and the front frame, the front seat bar linkage, and the front link form a four-bar linkage; the lower end part of the lower push rod is rotationally connected with the rear connecting rod through a push rod connecting piece, and the rear support, the lower push rod, the push rod connecting piece and the rear connecting rod form a four-bar mechanism.

3. The double stroller as recited in claim 2, wherein one end of the push rod link is pivotally connected to the rear link by a seventh pivot and the other end of the push rod link is pivotally connected to the lower end of the lower push rod by an eighth pivot, the third pivot being located between the second pivot and the eighth pivot.

4. The double stroller of claim 1, wherein the lower end of the lower push bar is rotatably and slidably connected to the rear link.

5. The double stroller of claim 1, wherein the rear end of the front link, the front end of the rear link, the lower end of the lower push rod, the upper end of the upper push rod and the upper end of the rear bracket are brought closer together when the frame is in the folded position; the lower end part of the front bracket, the front end part of the front connecting rod, the rear end part of the rear connecting rod, the upper end part of the upper connecting rod, the upper end part of the lower push rod, the lower end part of the upper push rod and the lower end part of the rear bracket are mutually closed.

6. The double stroller of claim 1, wherein the upper end of the rear frame has a rear frame connector, the front frame and the front portion of the rear frame connector are pivotally connected by a ninth pivot, and when the stroller frame is in the unfolded state, a line connecting the fourth pivot and the ninth pivot of the same side frame forms an included angle α with a horizontal plane, and the included angle α is less than 45 °.

7. The double stroller of claim 6, wherein the front frame comprises a front portion extending obliquely and an extension portion extending from the front portion and bent backward, the front wheel assembly is disposed on the front portion, the extension portion and the rear frame connecting member are rotatably connected by the ninth pivot, and the extension portion extends horizontally in a front-rear direction of the frame when the frame is in the unfolded state; when the frame is in a folded state, the rear support connecting piece is in a horizontal state.

8. The double stroller as recited in claim 1, wherein the spacing between the front wheel assemblies on each side is greater than the spacing between the rear wheel assemblies on each side, and wherein the rear wheel assemblies on each side are received between the front wheel assemblies on each side when the stroller frame is in the collapsed position.

9. The double stroller of claim 1, wherein the axes of the first, second, third, fourth, fifth, sixth, eleventh, twelfth and thirteenth pivot axes are parallel to each other.

10. The double stroller of claim 1, wherein the rear seat mechanism comprises a first rear seat bar, a second rear seat bar slidably connected to the first rear seat bar in a fore-and-aft direction, the first rear seat bar being pivotally connected to the rear frame by a tenth pivot, the second rear seat bar being pivotally connected to the lower push bar by a fourteenth pivot.