CN114104070B - double stroller - Google Patents

Abstract

The invention discloses a double-person child stroller, which comprises a frame in an unfolded state and a folded state, wherein the frame comprises a front supporting rod, a rear supporting rod and a push rod, the rear supporting rod comprises a first rear supporting rod and a second rear supporting rod which can be in sliding telescopic connection along the length extending direction of the rear supporting rod, a rear wheel assembly is arranged at the lower end part of the first rear supporting rod, the upper end part of the second rear supporting rod is rotatably connected with the upper end part of the front supporting rod around a first rotating center line, and the double-person child stroller also comprises a first seat assembly and a second seat assembly which are arranged at intervals along the front-back direction of the frame. The frame of the double-child stroller is simple in structure, simple and convenient to fold, small in folding size and flat, two seats can be arranged in the front-back direction, and the seat capable of being rotated and reversed can be arranged on the front supporting rod, so that the double-child stroller has a reversing function.

Description

double stroller

technical field

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

Background technique

With the development of society, more and more families begin to have two children, and the demand for double strollers is also becoming more and more extensive. When parents choose a double stroller, they will comprehensively consider various factors such as practicality, comfort, flexibility, and folding volume. Existing double strollers have different frame structures, and there are also great differences in folding principles and folded volumes. The most important problem faced in the design of a double stroller is how to reasonably reduce the volume of the whole vehicle on the premise of ensuring comfort, and to obtain a smaller and flatter folding volume as much as possible.

On the other hand, children of different ages have different requirements for riding directions—smaller children are suitable for riding facing the pusher and have a stronger sense of security, while older children are suitable for riding with their backs to the pusher and can observe more Scenery - This requires the seat of the stroller to have the function of reversing the front and back. However, reversing strollers often require enough reversing space, which conflicts with the design concept of double strollers. Therefore, the two seats of existing double strollers are generally relatively fixed, and it is impossible to set at least one interchangeable seat. Oriented seats, otherwise the vehicle will be very bulky, difficult to carry out daily, and poor in practicability.

Contents of the invention

The object of the present invention is to provide a small and flat folded double stroller for children against the deficiencies of the prior art.

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

A two-person stroller, comprising a vehicle frame with an unfolded state and a folded state, the vehicle frame includes a front support rod, a rear support rod and a push rod, wherein the rear support rod includes a sliding rod capable of sliding and stretching along its own length extension direction The first rear strut and the second rear strut are connected, the lower end of the first rear strut is provided with a rear wheel assembly, the upper end of the second rear strut is wound around the upper end of the front strut The first rotation center line is rotationally connected, and the double stroller further includes a first seat assembly and a second seat assembly arranged at intervals along the front-rear direction of the vehicle frame.

Preferably, the push rod is rotatably connected with the lower end of the second rear support rod around the second rotation center line, and when the vehicle frame is in an unfolded state, the vehicle frame further includes: a first connecting rod, the One end of the first connecting rod is rotatably connected with the front strut, and the other end of the first connecting rod is rotatably connected with the lower end of the push rod around the third rotation center line; the second connecting rod, the One end of the second connecting rod is rotatably connected with the first rear support rod around the fourth centerline of rotation, and the other end of the second connecting rod is rotatably connected with the push rod around the fifth centerline of rotation; The first rotation centerline, the second rotation centerline, the third rotation centerline, the fourth rotation centerline, and the fifth rotation centerline respectively extend along the width direction of the vehicle frame; In the length extension direction of the rear strut, the first rotation centerline, the fourth rotation centerline, and the second rotation centerline are sequentially arranged from top to bottom; along the length extension direction of the push rod , the third rotation centerline, the second rotation centerline, and the fifth rotation centerline are set in sequence.

Preferably, when the vehicle frame is in an unfolded state, the push rod is cross-connected to the first rear strut, and the push rod is connected to the lower part of the first rear strut.

Preferably, the first seat assembly is relatively rotatably arranged on the vehicle frame around a sixth rotation centerline, and the sixth rotation centerline extends along the height direction of the vehicle frame.

Preferably, the front struts have two groups arranged on the left and right sides, the vehicle frame further includes a support bracket arranged between the two groups of the front struts, and the first seat assembly is disposed on the on the bracket.

Preferably, the front struts have two groups respectively arranged on the left and right sides, and each set of the front struts has a front strut section and a rear extension section extending backward from the upper end of the front strut section, the The vehicle frame also includes a support bracket arranged between the two sets of rear extensions, and on each side of the vehicle frame, the support bracket is connected to the same side of the front strut, the second The two rear support rods are jointly rotatably connected around the first rotation center line, and the first seat assembly is arranged on the support frame.

Preferably, the push rod includes an upper push rod and a lower push rod, the second seat assembly includes a seat post and a third link, and when the vehicle frame is in an unfolded state, the lower end of the upper push rod is in contact with the The upper end of the lower push rod is rotatably connected, the seat post extends along the front-rear direction, the seat post is rotatably connected to the lower push rod, one end of the third link is rotatably connected to the upper push rod, The other end of the third link is rotatably connected to the seat post.

Preferably, the first rear support rod has a rod cavity extending along its own length direction, and the first rear support rod is also provided with a chute extending along its own length direction, and the chute is connected with the rod cavity The lower end of the second rear support rod is provided with a connecting column, the lower part of the second rear support rod can be relatively slidably inserted into the rod cavity, and the connecting column can be relatively slidably inserted in the In the chute, the push rod is rotatably connected to the second rear support rod around the axis of the connecting column.

Preferably, the vehicle frame further includes a first connecting rod. When the vehicle frame is in an unfolded state, the front support rod has a front rod section and a rear extension section extending backward from the upper end of the front rod section, The front rod section extends obliquely upward gradually from front to back, the upper end of the first connecting rod is rotatably connected to the upper end of the front rod section, and the first rotation centerline is located at the rear end of the rear extension section department.

Further preferably, the push rod includes a lower push rod. When the vehicle frame is in an unfolded state, the lower push rod has a diagonal rod section and a forward extension section extending forward from the lower end of the diagonal rod section, so that The oblique bar section extends obliquely upwards gradually from front to back, the lower end of the second rear support rod is rotationally connected with the lower end of the oblique bar section around the second centerline of rotation, and the lower end of the first connecting rod is connected with the lower end of the oblique bar section. The front end of the front extension section is rotatably connected around a third rotational centerline.

Further preferably, when the vehicle frame is in the unfolded state, the length extension directions of the rear support rod and the first connecting rod are parallel to each other and gradually extend downward from front to rear.

Preferably, when the vehicle frame is in a folded state, the first rear strut and the second rear strut are folded together, and the push rod is folded at the rear side of the rear strut.

Preferably, the push rod includes an upper push rod and a lower push rod, the lower end of the upper push rod is rotatably connected to the upper end of the lower push rod, and when the vehicle frame is in a folded state, the upper push rod Gather in the rear side of the lower push rod.

Preferably, the first seat assembly includes a first seat and a first backrest that are rotatably connected, the first seat is arranged on the vehicle frame, and the vehicle frame is in an unfolded state, the first backrest and the first backrest The first seats are unfolded; when the frame is transformed from the unfolded state to the folded state, the first backrest rotates forward and is folded with the first seat.

Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: the frame structure of the double stroller is simple, the frame can be quickly folded, the folding operation is simple, the folding volume is small, the height is reduced and the The front and rear are flat, which is convenient for transportation and storage, and there is enough space between the front support rod and the push rod. On the one hand, two seats can be arranged at intervals along the front and rear directions. At the same height, it is convenient for two children to interact and communicate, and the overall center of gravity of the stroller is also more stable, and the two children will not feel crowded and cramped, and the comfort level is higher; on the other hand, the frame can set a The rotatable and reversible seat enables the double stroller to have the reversing function, and the seat will not be interfered by other rods when reversing and rotating, and no other rods are required for position adjustment, and the operation is very convenient.

Description of drawings

In order to illustrate the technical solution of the present invention 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 present invention. Ordinary technicians can also obtain other drawings based on these drawings on the premise of not paying creative work.

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

Accompanying drawing 2 is the side view schematic diagram of Fig. 1;

Accompanying drawing 3 is the three-dimensional schematic diagram of the double stroller in this embodiment, wherein the first seat assembly is folded;

Accompanying drawing 4 is the schematic side view of Fig. 3;

Accompanying drawing 5 is the three-dimensional schematic diagram of further folding of the double stroller in this embodiment;

Accompanying drawing 6 is the schematic side view of Fig. 5;

Accompanying drawing 7 is the three-dimensional schematic diagram of further folding of the double stroller in this embodiment;

Accompanying drawing 8 is the schematic side view of Fig. 7;

Accompanying drawing 9 is the three-dimensional schematic view of the double stroller in this embodiment in a folded state;

Accompanying drawing 10 is the schematic side view of Fig. 9;

Among them: 1100, front support rod; 1101, front rod section; 1102, rear extension section; 1200, rear support rod; 1210, first rear support rod; 1211, chute; 1212, connecting column; 1220, second rear support Rod; 1400, push rod; 1410, lower push rod; 1411, oblique rod section; 1412, front extension; 1420, upper push rod; 1421, revolving joint; 1500, first connecting rod; 1600, second connecting rod;

2100, support frame; 3100, first seat assembly; 3110, first seat; 3120, first backrest; 3210, third link; 3220, seat post; 3230, horizontal link; 4100, front wheel assembly; 4200 , rear wheel assembly;

A. First rotation centerline; B. Second rotation centerline; C. Third rotation centerline; D. Fourth rotation centerline; E. Fifth rotation centerline; F. Sixth rotation centerline; G. The seventh rotation center line; H, the eighth rotation center line; I, the ninth rotation center line; J, the tenth rotation center line; K, the eleventh rotation center line; L, the twelfth rotation center line.

Detailed ways

The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", The orientation or positional relationship indicated by "left-right direction", "height direction", "front-rear direction", etc. is the orientation or position observed by the child when the child normally sits on the first seat assembly used facing forward based on the attached drawing 1 The relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, only have a specific orientation, and be constructed and operated in a specific orientation, so it cannot be construed as a reference to the present invention limits. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

Unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to another feature or may be indirectly fixed or connected to another feature. Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be interpreted in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, It can also be an electrical connection; it can be a direct connection, or an indirect connection through an intermediary, or an internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Referring to Fig. 1 and Fig. 2, a double stroller includes a vehicle frame in an unfolded state and a folded state, and a first seat assembly 3100 and a second seat assembly arranged at intervals along the front and rear directions of the frame, two groups The seat assembly has an unfolded state and a folded state respectively, and can be folded together with the vehicle frame, and the folded volume of the whole vehicle is small and flat.

In this embodiment, the vehicle frame includes two sets of side brackets arranged on the left and right sides, and a cross bracket connected between the two sets of side brackets. Each set of side supports includes a front support rod 1100, a rear support rod 1200, a push rod 1400, a first connecting rod 1500, a second connecting rod 1600, etc., wherein the rear support rod 1200 further includes a telescopic connection that can slide along its own length extension direction. The first rear support rod 1210 and the second rear support rod 1220 , and the push rod 1400 further include a lower push rod 1410 and an upper push rod 1420 which are rotatably connected. When the frame is unfolded, in each set of side brackets:

The front pole 1100 has a front pole section 1101 and a rear extension section 1102. The front pole section 1101 gradually extends obliquely upwards from the front to the rear, and the rear extension section 1102 extends horizontally from the upper end of the front pole section 1101 to the rear. A front wheel assembly 4100 is provided.

The whole rear support rod 1200 extends obliquely downward gradually from the front to the rear. The first rear support rod 1210 has a rod cavity extending along its own length direction, and the lower part of the second rear support rod 1220 can be relatively slidably inserted into the rod cavity. The first rear support rod 1210 is also provided with a chute 1211 extending along its own length direction, the chute 1211 communicates with the rod cavity, and the lower end of the second rear support rod 1220 is provided with a connecting column 1212, which is connected to the second rear support rod 1210. The rear support rod 1220 can be fixedly connected or rotatably connected, and the axis line of the connecting column 1212 constitutes the second rotating centerline B, and the connecting column 1212 can be relatively slidably inserted into the slide groove 1211 . The lower end of the first rear strut 1210 is provided with a rear wheel assembly 4200 , and the upper end of the second rear strut 1220 is rotatably connected with the rear end of the rear extension 1102 around the first rotation centerline A.

The whole push rod 1400 extends obliquely upward gradually from front to back. The lower end of the upper push rod 1420 has a swivel joint 1421 , and the swivel joint 1421 is rotatably connected with the upper end of the lower push rod 1410 around the eighth rotation centerline H. The lower push rod 1410 has an oblique rod section 1411 and a forward extension section 1412. The oblique rod section 1411 gradually extends obliquely upwards from the front to the rear, and the forward extension section 1412 extends horizontally forward from the lower end of the oblique rod section 1411. It is substantially the same as the above-mentioned trailing section 1102 . The lower end of the diagonal bar section 1411 is rotatably connected to the lower end of the second rear support bar 1220 through the connecting column 1212 (ie, around the second rotation center line B).

The first connecting rod 1500 extends obliquely downward gradually from the front to the rear, and its length extending direction is parallel to the rear support rod 1200 . The upper end of the first connecting rod 1500 is rotatably connected with the upper end of the front rod section 1101 around the seventh rotation centerline G, and the lower end is rotatably connected with the front end of the front extension section 1412 around the third rotation centerline C.

The first rotation centerline A, the second rotation centerline B, the third rotation centerline C, and the seventh rotation centerline G are parallel to each other and extend along the width direction of the vehicle frame respectively. In this way, the rear extension section 1102, the second rear The support rod 1220, the front extension section 1412 and the first connecting rod 1500 constitute a set of four-bar linkage mechanism, and the four-bar linkage is roughly in the shape of a parallelogram, so that the rods can be more compact and flat when the frame is folded and folded. The frame is more beautiful whether it is unfolded or folded.

Furthermore, the second connecting rod 1600 extends along the front-rear direction, and its front end is rotatably connected with the first rear support rod 1210 around the fourth rotation centerline D, and its rear end is rotatably connected with the diagonal bar section 1411 around the fifth rotation centerline E. . The fourth rotation centerline D, the fifth rotation centerline E, and the above-mentioned second rotation centerline B are parallel to each other. The second rotation centerline B is arranged sequentially from top to bottom; along the extension direction of the length of the lower push rod 1410, the third rotation centerline C, the second rotation centerline B, and the fifth rotation centerline E are sequentially arranged from bottom to top . In this way, the first rear support rod 1210, the second rear support rod 1220, the second connecting rod 1600 and the lower push rod 1410 constitute a set of crank slider mechanism, and the crank slider mechanism can interact with the above-mentioned four-bar linkage mechanism , realize the folding and unfolding of the entire side bracket, and then realize the folding and unfolding of the entire vehicle frame.

It can be seen from the above that the vehicle frame in this embodiment has a relatively large space between the front strut 1100 and the push rod 1400, which can realize multiple functions such as double stroller and seat reversing.

Referring to Fig. 1 and Fig. 2, in this embodiment, the transverse bracket includes a support bracket 2100, and the support bracket 2100 is arranged between the rear extensions 1102 of the two sets of front struts 1100, and is used to set and support the first seat assembly 3100. The support bracket 2100 has a certain width along the front-rear direction of the vehicle frame, and its width is not less than the length of the rear extension section 1102, so that the upper surface of the support bracket 2100 forms a support plane for the first seat assembly 3100, and the support plane and the rear The extension 1102 is substantially flush so as not to interfere with the rotation of the first seat assembly 3100 to reverse directions. On each side of the vehicle frame, the support bracket 2100, the rear extension section 1102 and the second rear strut 1220 on the same side are rotatably connected around the first rotation center line A, so that the support bracket 2100 and the second upper part of the support bracket 2100 A seat assembly 3100 can be folded together with the vehicle frame as a whole.

Specifically, the first seat assembly 3100 includes a first seat 3110 and a first backrest 3120 rotatably connected around a twelfth rotation centerline L, and the twelfth rotation centerline L extends along the width direction of the first seat assembly 3100 . The first seat 3110 is arranged on the bracket 2100 so as to be relatively rotatable around a sixth rotation centerline F, and the sixth rotation centerline F extends along the height direction of the vehicle frame. In this way, the first seat assembly 3100 can realize forward and reverse reversing on the vehicle frame without being interfered by other rods, and the reversing operation is convenient and fast.

The second seat assembly is arranged on the push rod 1400, specifically including the seat post 3220 and the third connecting rod 3210. Both the seat post 3220 and the third connecting rod 3210 have two groups arranged on the left and right sides. A horizontal link 3230 is also connected. When the vehicle frame is in the unfolded state, the seat post 3220 on each side extends along the front-rear direction, the seat post 3220 is connected with the inclined bar section 1411 around the eleventh rotation center line K, and the upper end of the third link 3210 is connected with the rotation joint 1421 around The ninth rotational center line I is rotationally connected, and the lower part of the third link 3210 is rotationally connected with the rear end of the seatpost 3220 around the tenth rotational central line J. In this way, the upper push rod 1420 , the lower push rod 1410 , the seat post 3220 and the third link 3210 on each side also constitute a set of four-bar linkage mechanism. In this embodiment, seat pockets, baskets, etc. can be provided on the seat post 3220 and the cross link 3230 for children to ride and lie on. The seat pockets can be set facing the front or facing the rear. When the lower push rod 1410 is rotated and folded around the eighth rotation centerline H, the seatpost 3220 and the third link 3210 can be rotated and retracted in conjunction with each other, thereby realizing the synchronous folding of the second seat assembly and the vehicle frame.

In other embodiments, the specific setting of the second seat assembly may not be limited to the above-mentioned rod connection method, and conventional connection methods such as socket connection and fixed connection may also be used. The upper push rod 1420 and the lower push rod 1410 may also be Sliding and telescopic connections can be made without affecting the folding principle of the whole vehicle. As long as the second seat assembly is arranged on the push rod 1400, it all conforms to the technical concept of the present invention.

The working principle of the two-person stroller in the present embodiment is specifically set forth below:

Referring to Fig. 1 and Fig. 2, when the vehicle frame and the two sets of seat assemblies are in the unfolded state, the stroller can be used by two children at the same height, one in front of the other, and the first seat assembly 3100 passes around the sixth Turning the center line F to rotate can realize two orientations: facing the front side and facing the rear side (only the front facing side is shown in the figure), so as to obtain different riding experiences. Moreover, there is sufficient space between the two groups of seats, and when two children ride face to face, there is also enough space to place their legs, and the ride comfort is strong.

Referring to Fig. 3 and Fig. 4, when the double stroller needs to be folded, firstly, the first seat assembly 3100 can be rotated to face the front side, and then the first backrest 3120 can be rotated forward and aligned with the first seat assembly. 3110 is folded, and at the same time, the supporting bracket 2100 is also rotated forward around the first rotation center line A, further making the first seat assembly 3100 and the front pole 1100 folded together.

Referring to Fig. 5 and Fig. 6, the upper push rod 1420 is driven to rotate backward around the eighth rotation centerline H and folded together with the lower push rod 1410, and at the same time, the second seat assembly can be folded and folded together.

Referring to Fig. 7 and Fig. 8, the push rod 1400 is further driven forward and retracted with the rear strut 1200. Under the linkage relationship of the above-mentioned rods, the first rear strut 1210 and the second rear strut 1220 slide and retract, and the front support The rods 1100 are folded backwards, each rod is close to each other, and due to the approximately parallelogram structure between the rear extension 1102, the second rear support rod 1220, the front extension 1412 and the first connecting rod 1500, the folded volume of the frame is As compact and flat as possible.

Referring to Fig. 9 and Fig. 10, the vehicle frame and two sets of seat assemblies are in the folded state, all the rods are compactly folded, the folded volume of the whole vehicle is small and flat, and the front wheel assembly 4100 and the rear wheel assembly 4200 can be supported on On the same horizontal plane, the frame can be self-supporting.

In summary, the double stroller of this embodiment can be used as a double stroller in the unfolded state, and can realize the rotation and reversing of at least one seat; it is easy to operate when folded, and the folded volume is small and flat, which is convenient for storage and storage. transportation.

The above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present invention. Substantial equivalent changes or modifications shall fall within the protection scope of the present invention.

Claims (10)

1. The utility model provides a double children's shallow, is including having the frame of expansion state and fold condition which characterized in that: the double-child stroller comprises a frame, a first seat assembly, a second seat assembly and a push rod, wherein the frame comprises a front support rod, a rear support rod and the push rod, the rear support rod comprises a first rear support rod and a second rear support rod which can be in sliding telescopic connection along the length extending direction of the frame, a rear wheel assembly is arranged at the lower end part of the first rear support rod, the upper end part of the second rear support rod is in rotating connection with the upper end part of the front support rod around a first rotating center line, and the double-child stroller further comprises the first seat assembly and the second seat assembly which are arranged at intervals along the front-rear direction of the frame;

the push rod with the lower tip of second back branch is rotated around the second rotation center line and is connected, the frame is under the state of expanding, the frame still includes:

one end of the first connecting rod is rotatably connected with the front supporting rod, and the other end of the first connecting rod is rotatably connected with the lower end of the push rod around a third rotation center line;

one end of the second connecting rod is rotatably connected with the first rear supporting rod around a fourth rotating center line, and the other end of the second connecting rod is rotatably connected with the push rod around a fifth rotating center line.

2. The double stroller of claim 1, wherein: the first rotation center line, the second rotation center line, the third rotation center line, the fourth rotation center line and the fifth rotation center line respectively extend along the width direction of the frame; the first rotation center line, the fourth rotation center line and the second rotation center line are sequentially arranged from top to bottom along the extension direction of the rear support rod; and in the length extending direction of the push rod, the third rotating center line, the second rotating center line and the fifth rotating center line are sequentially arranged.

3. The double stroller of claim 1, wherein: when the frame is in an unfolded state, the push rod is in cross connection with the first rear supporting rod, and the push rod is connected to the lower portion of the first rear supporting rod.

4. The double stroller of claim 1, wherein: the first seat assembly is relatively rotatably provided on the frame about a sixth pivot axis extending in a height direction of the frame.

5. The double stroller of claim 1, wherein: the front supporting rods are respectively arranged on the left side and the right side, the frame further comprises a supporting bracket arranged between the two groups of front supporting rods, and the first seat assembly is arranged on the supporting bracket.

6. The double stroller of claim 1, wherein: the front supporting rod is provided with two groups which are respectively arranged at the left side and the right side, each group of front supporting rods are provided with front rod sections and rear extension sections which extend backwards from the upper end parts of the front rod sections, the frame further comprises supporting brackets which are arranged between the two groups of rear extension sections, the supporting brackets are arranged on each side of the left side and the right side of the frame, the supporting brackets are connected with the front supporting rods at the same side and the second rear supporting rods jointly wind the first rotating center line in a rotating mode, and the first seat assembly is arranged on the supporting brackets.

7. The double stroller of claim 1, wherein: the push rod comprises an upper push rod and a lower push rod, the second seat assembly comprises a seat rod and a third connecting rod, the frame is in an unfolded state, the lower end portion of the upper push rod is rotatably connected with the upper end portion of the lower push rod, the seat rod extends in the front-rear direction, the seat rod is rotatably connected with the lower push rod, one end portion of the third connecting rod is rotatably connected with the upper push rod, and the other end portion of the third connecting rod is rotatably connected with the seat rod.

8. The double stroller of claim 1, wherein: first back branch has the pole chamber that extends along self length direction, still set up the spout that extends along self length direction on the branch of first back, the spout with the pole chamber is linked together, the lower tip of branch is equipped with the spliced pole behind the second, the lower part of branch can insert with sliding relatively and establish in the pole chamber behind the second, the spliced pole can insert with sliding relatively and establish in the spout, the push rod wind the axial lead of spliced pole with the pole rotates behind the second and is connected.

9. The double stroller of claim 1, wherein: when the frame is in an unfolded state, the front strut is provided with a front rod section and a rear extension section which extends backwards from the upper end part of the front rod section, the front rod section gradually extends upwards in an inclined way from front to back, the upper end part of the first connecting rod is rotatably connected with the upper end part of the front rod section, and the first rotation center line is positioned at the rear end part of the rear extension section; and/or the presence of a gas in the gas,

the push rod comprises a lower push rod, the frame is in an unfolded state, the lower push rod is provided with a diagonal rod section and a front extension section extending forwards from the lower end part of the diagonal rod section, the diagonal rod section gradually extends upwards from front to back in an inclined mode, the lower end part of the second rear supporting rod is rotatably connected with the lower end part of the diagonal rod section around the second rotation center line, and the lower end part of the first connecting rod is rotatably connected with the front end part of the front extension section around the third rotation center line; and/or the presence of a gas in the gas,

when the frame is in an unfolded state, the extension directions of the rear supporting rod and the first connecting rod are mutually parallel and are respectively downwards inclined and extended gradually from front to back.

10. The double stroller of any of claims 1 to 9, wherein: when the frame is in a folded state, the first rear supporting rod and the second rear supporting rod are mutually folded, and the push rod is folded at the rear side of the rear supporting rod; and/or the presence of a gas in the gas,

the push rod comprises an upper push rod and a lower push rod, the lower end part of the upper push rod is rotatably connected with the upper end part of the lower push rod, and the upper push rod is furled at the rear side of the lower push rod when the frame is in a folded state; and/or the presence of a gas in the atmosphere,

the first seat assembly comprises a first seat and a first backrest which are rotatably connected, the first seat is arranged on the frame, and the first backrest and the first seat are mutually unfolded when the frame is in an unfolded state; when the frame is converted from the unfolding state to the folding state, the first backrest rotates forwards and is folded with the first seat.

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