CN108100011A - Multi-function baby stroller - Google Patents

Abstract

The invention discloses a multifunctional stroller, which comprises a bottom bracket, a front wheel assembly arranged at the bottom front of the bottom bracket, a rear wheel assembly arranged at the bottom rear of the bottom bracket, and the baby stroller also includes a push rod, The lower part of the push rod is pivotally connected to the bottom bracket, and the push rod has a pushing use state and a towing use state. When the push rod is in the push use state, the push rod moves from front to back Gradually extend upward; when the push rod is in the state of towing use, the push rod extends forward from the front of the bottom bracket, and there is a device between the push rod and the bottom bracket for The two are locked so that the push rod is in the locking structure in the pushing use state. In this way, on the premise of not affecting the carrying capacity of the baby carriage, the ways of using the baby carriage are increased, and the fun of using the baby carriage is improved.

Description

multifunctional stroller

technical field

The invention relates to a multifunctional stroller, in particular to a stroller which can be used as a stroller and a trailer.

Background technique

The stroller provides greater convenience for people to carry smaller children for outdoor activities. In the prior art, baby carriages have a variety of structures, but most of them can only be used for pushing, that is, an adult stands behind the stroller to push the stroller, and the use method is relatively single. There is also a trailer in the prior art, which generally includes a frame and a wheel assembly arranged at the bottom of the frame. There is a tow bar on the frame. Adults can stand in front of the trailer and pull the car forward through the tow bar. Functionality and scope are also very single.

Contents of the invention

The object of the present invention is to provide a multifunctional stroller which can be used as a pushcart and a trailer, so as to expand the function and application range of the stroller.

In order to achieve the above object, the technical solution adopted by the present invention is: a multifunctional stroller, comprising a bottom bracket, a front wheel assembly arranged at the bottom front of the bottom bracket, and a rear wheel assembly arranged at the bottom rear of the bottom bracket , the stroller also includes a push rod, the lower part of the push rod is pivotally connected to the bottom bracket, the push rod has a push use state and a tow use state, when the push rod is in the push use state When the push rod is in the state of towing use, the push rod extends forward from the front of the bottom bracket, and the push rod and the push rod A locking structure for locking the two bottom brackets is also provided between the bottom brackets so that the push rod is in the pushing use state.

Preferably, the bottom bracket includes a front bracket extending upwardly from front to rear, a rear bracket extending upwardly from rear to front and having an upper part pivotally connected to the upper part of the front bracket, and a connection between the front bracket and the upper part of the front bracket. The link assembly between the rear brackets, the lower part of the push rod is pivotally connected to the lower part of the front bracket, when the push rod is in the state of towing use, the push rod is The lower part of the front bracket extends forward.

Further, the connecting rod assembly at least includes a surrounding frame extending along the front-to-back direction, the surrounding frame has a frame-shaped surrounding rod and a human body support under the surrounding rod, and the surrounding rod is connected to the human body. A human support and protection space is formed between the support members.

Furthermore, the surrounding frame also includes a front backrest disposed at the front of the surrounding pole, and/or a rear backrest disposed at the rear of the surrounding pole, and both the front backrest and the rear backrest have And support the open use state on the said surrounding bar.

Furthermore, the front backrest and the rear backrest are respectively pivotally connected to the surrounding rods, and the front backrest and the rear backrest also have a function extending in the front-rear direction and positioned on the human support member in the up-down direction. The folded use state between the fence and the pole.

As a specific implementation, the surrounding frame further includes a front connecting frame extending downward from the front of the surrounding bar, a rear connecting frame extending downward from the rear of the surrounding bar, and the front backrest The lower part of the pivot is connected to the lower part of the front connecting frame, the backrest is pivotally connected to the lower part of the rear connecting frame, and the human body support is connected to the lower part of the front connecting frame and the rear Between the lower part of the connecting frame.

Preferably, the front part of the surrounding bar is pivotally connected to the lower part of the front bracket, and the linkage assembly further includes a swing link pivotally connected between the rear bracket and the surrounding bar, the A four-bar linkage mechanism is formed between the front bracket, the rear bracket, the surrounding rod and the swing rod. The bottom bracket has an unfolded state and a folded state, and the bottom bracket is also provided with a lock for locking the bottom bracket in the unfolded state. locking mechanism.

Further, the locking mechanism is arranged between the surrounding rod and the rear bracket. When the bottom bracket is in the unfolded state, a triangular structure is formed between the front bracket, the rear bracket and the surrounding rod, so that The rear part of the surrounding bar is also provided with an unlocking operating piece for unlocking the locking mechanism.

Preferably, the locking structure is provided between the upper part of the front bracket and the push rod or between the upper part of the rear bracket and the push rod.

Further, the push rod has a lower push rod and an upper push rod that slides and stretches relative to the lower push rod, wherein the locking structure is provided between the lower push rod and the front bracket, when the push rod When the rod is in the pushing state, the length extension direction of the lower push rod is parallel to the length extension direction of the front bracket.

Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art: the multifunctional stroller of the present invention, wherein the push rod is pivotally connected to the bottom bracket, through the locking structure between the push rod and the bottom bracket The locking and unlocking of the push rod makes the push rod have a pushing state extending obliquely from front to rear for pushing, and a dragging state extending forward from the bottom bracket for dragging by the user. In this way, on the premise of not affecting the carrying capacity of the baby carriage, the ways of using the baby carriage are increased, and the fun of using the baby carriage is improved.

Description of drawings

Accompanying drawing 1 is the three-dimensional view of the expanded state of the stroller of embodiment 1, wherein the push rod is in the state of pushing and using, and the front backrest and the backrest are both in the state of opening and using;

Accompanying drawing 2 is the side view of accompanying drawing 1;

Accompanying drawing 3 is the side view of the stroller in the unfolded state of embodiment 1, wherein both the front backrest and the rear backrest are in the folded use state;

Accompanying drawing 4 is the three-dimensional view of the expanded state of the stroller of Embodiment 1, wherein the push rod is in the state of towing use;

Accompanying drawing 5 is the side view of accompanying drawing 4;

Accompanying drawing 6 is the schematic diagram of folding principle of the stroller of embodiment 1;

Accompanying drawing 7 is the side view of the half-folded baby carriage of embodiment 1;

Accompanying drawing 8 is the perspective view of the half-folded baby carriage of embodiment 1;

Accompanying drawing 9 is the three-dimensional view of the stroller in embodiment 1 in a folded state;

Accompanying drawing 10 is the side view of the stroller in embodiment 1 in a folded state;

Accompanying drawing 11 is a schematic side view of the baby carriage in the expanded state of Embodiment 2;

Accompanying drawing 12 is the schematic side view of the stroller of embodiment 2 in a half-folded state;

Accompanying drawing 13 is a schematic side view of the stroller in embodiment 2 in a folded state;

Accompanying drawing 14 is the side view schematic diagram of the baby carriage in the expanded state of embodiment 3;

Accompanying drawing 15 is the side view schematic diagram of the half-folded baby carriage of embodiment 3;

Accompanying drawing 16 is the schematic side view of the stroller in embodiment 3 in a folded state;

Accompanying drawing 17 is a schematic side view of the baby carriage in the expanded state of Embodiment 4;

Accompanying drawing 18 is the schematic side view of the stroller of Embodiment 4 in a half-folded state;

Accompanying drawing 19 is the schematic side view of the stroller in embodiment 4 in a folded state;

Among them: 10. Bottom bracket; 1. Front bracket; 2. Rear bracket; 3. Surrounding frame; 31. Surrounding rod; 32. Front connecting frame; 33. Rear connecting frame; 34. Unlocking operation part; 35. Human support ;36, front backrest; 37, backrest; 4, swing rod; 5, locking mechanism; 6, rotating joint; 7, first axis; 8, second axis; 9, push rod; , the upper push rod; 93, the locking part; 94, the push rod unlocking part; 20, the front wheel assembly; 30, the rear wheel assembly; 40, the seat frame.

Detailed ways

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

In the following descriptions about directions, the front, back, left, and right directions observed by the operator when the stroller is used as a stroller are all defined as a reference.

Example 1

Referring to the multifunctional stroller shown in Figures 1 to 5, it includes a bottom bracket 10, a front wheel assembly 20 located at the bottom front of the bottom bracket 10, a rear wheel assembly 30 located at the bottom rear of the bottom bracket 10, and a push rod 9. Wherein, the bottom bracket 10 is used for bearing the human body when the stroller is in use. The lower part of the push rod 9 is pivotally connected to the bottom bracket 10, and the push rod 9 has a pushing use state and a dragging use state. When the push rod 9 is in the pushing use state, as shown in FIGS. 1 to 3, the push rod 9 Gradually incline and extend from front to back. At this time, the user can stand on the rear side of the baby carriage and push the push rod 9 to drive the baby carriage forward; The rod 9 extends forward from the front of the bottom bracket 10, and the user can stand in front of the stroller and pull the push rod 9 to drive the stroller forward.

The push rod 9 and the bottom bracket 10 are also provided with a locking structure for locking both of them so that the push rod 9 is in the pushing use state. When it is necessary to convert the push rod 9 from the pushing use state to the dragging use state, It is only necessary to unlock the above-mentioned locking structure to disengage the locking connection between the push rod 9 and the bottom bracket 10, and then pull the push rod 9 forward.

Specifically, referring to FIGS. 1 to 10 , the bottom bracket 10 includes a front bracket 1 extending upwardly from the front to the rear, and a rear bracket 2 extending upwardly from the rear to the front and whose upper part is pivotally connected to the upper part of the front bracket 1 . , and the link assembly connected between the front bracket 1 and the rear bracket 2, the front wheel assembly 20 is located at the bottom of the front bracket 1, and the rear wheel assembly 30 is located at the bottom of the rear bracket 2.

The lower part of the push rod 9 is pivotally connected to the lower part of the front bracket 1, and the locking structure between the push rod 9 and the bottom bracket 10 is arranged between the top of the front bracket 1 and the push rod 9 or between the upper part of the rear bracket 2 and the bottom bracket 10. Between putters 9. The front bracket 1 and the rear bracket 2 are divided into two groups on the left and right sides, and the upper part of the front bracket 1 and the upper part of the rear bracket 2 on the same side are rotatably connected through the swivel joint 6; the locking structure is arranged between the push rod 9 and the swivel joint 6 between. When the push rod 9 is in the pushing state, the length extension direction of the push rod 9 is parallel to the length extension direction of the front bracket 1; when the push rod 9 is in the dragging state, the push rod 9 is inclined forward from the bottom of the front bracket 1 Extended for use by the operator.

Specifically, the push rod 9 has a lower push rod 91 and an upper push rod 92 that slides and stretches relative to the lower push rod 91. The lower push rod 91 has two pieces that are respectively arranged on the left and right sides, and the lower parts of the two lower push rods 91 are respectively pivoted. The shaft is connected to the lower part of the front brackets 1 on both sides, and the upper push rod 92 is U-shaped with the opening facing downward; the locking structure includes a locking piece 93 arranged on the lower push rod 91 and a matching fitting arranged on the same side rotating joint 6. Parts (not shown in the figure), through the cooperation and disengagement of the locking part 93 and the matching part, the push rod 9 is converted between the pushing use state and the dragging working state, and the upper part of the push rod 9 is also provided for The push rod unlocking part 94 for unlocking the above-mentioned locking structure.

1 to 5, the link assembly between the front bracket 1 and the rear bracket 2 at least includes a surrounding frame 3, which includes a frame-shaped surrounding bar 31 extending in the front-to-back direction and a surrounding The human body supporting part 35 below the bar 31 forms a human body supporting protection space that provides human body sitting and lying support between the surrounding bar 31 and the human body supporting part 35 .

The surrounding frame 3 also includes a front backrest 36 located at the front of the surrounding bar 31, and/or a rear backrest 37 located at the rear of the surrounding bar 31. Here, the surrounding frame 2 is provided with a front backrest 36 and a rear backrest 37 at the same time. , the front backrest 36 is pivotally connected to the front part of the surrounding bar 31, and the rear backrest 37 is pivotally connected to the rear part of the surrounding bar 31. The open use state (as shown in Fig. 1, 2, 4, 5), and the folded use state (as shown in Fig. 3 ) extend along the front-back direction and are located between the human body support 35 and the surrounding rod 31 along the up-down direction.

Specifically, in this embodiment, as shown in FIGS. The rear connecting frame 33, wherein, the front connecting frame 32 extends obliquely forward and downward from the front portion of the surrounding bar 31, and the rear connecting frame 33 extends obliquely backward and downward from the rear portion of the surrounding bar 31. The front backrest 36 is pivotally connected to the bottom of the front connecting frame 32, and the front backrest 36 is supported on the front side rod portion of the surrounding bar 31 when unfolded; the rear backrest 37 is pivotally connected to the bottom of the rear connecting frame 33, and the backrest 37 is supported on the rear side pole portion of the surrounding pole 31 when deployed. The front backrest 36 and the backrest 37 are all located in the frame-shaped side of the surrounding bar 31, and both of them are in a U-shaped structure with the opening facing downward when they are opened and used, so as to provide children who sit and lie on the human body support 35. Back support. The human body supporting part 35 is connected between the lower part of the front connecting frame 32 and the lower part of the rear connecting frame 33, and the human body supporting part 35 can specifically adopt a cloth cover or a supporting plate.

Referring to Fig. 1 to Fig. 5, the front part of the surrounding bar 31 is pivotally connected to the lower part of the front bracket 1; One end of the swing link is pivotally connected to the rear support 2 through the first shaft 7, and the other end of the swing link 4 is pivotally connected to the surrounding rod 31 through the second shaft 8, so that the front support 1, the rear support 2, and the surrounding rod 31 A four-bar linkage mechanism is formed between the swing rod 4, so that each rod on the bottom bracket 10 can rotate relatively so that the bottom bracket 10 has an unfolded state and a folded state, and the bottom bracket 10 is also provided with a Lock the locking mechanism 5 in the unfolded state.

In this embodiment, the locking mechanism 5 is arranged between the surrounding bar 31 and the rear bracket 2, as shown in Figures 1 to 5, when the bottom bracket 10 is locked in the unfolded state, the front bracket 1, the rear bracket 2 and the surrounding The triangular structure is formed between the rods 31, so that the bottom bracket 10 has good stability and bearing capacity; the second shaft 8 is located in front of the first shaft 7, and the swing rod 4 is located below the surrounding rod 31 and is roughly parallel to the surrounding rod 31 state, making the appearance of the stroller more concise and beautiful. An unlocking operating member 34 for unlocking the above-mentioned locking mechanism 5 is also provided at the rear of the surrounding bar 31 . Here, the locking mechanism 5 can specifically adopt the locking hook arranged on the surrounding bar 31 and the locking column arranged on the rear bracket 2, and the locking of the locking mechanism 5 can be realized through the cooperation of the above-mentioned locking hook and the locking column to realize the locking of the surrounding bar 31. Locking connection with rear bracket 2.

Referring to the drawings, the stroller also includes a seat frame 40 detachably mounted on the bottom bracket 10 .

The following is a specific description of the use of the stroller:

Referring to Fig. 1 to Fig. 3, the push rod 9 and the bottom bracket 10 are locked by a locking structure and are in a pushing use state. In this use state, a child can be carried by the grafted seat frame 40; at the same time, the front backrest 36 and the rear backrest 37 on the surrounding frame 3 can all be in an upright state and be in an open use state. Carry one or two children again; Also can only rear backrest 37 be erected and only carry a child on the surrounding frame 3; All are in the folded use state, the surrounding frame 3 does not carry children, but only the seat frame 40 carries the children, and the surrounding frame 3 can be used as a basket at this time. Of course, in this state, the seat frame 40 can also be removed, and only the surrounding frame 3 carries the child and the push rod 9 is pushed on the rear side of the stroller to realize the advancement of the stroller.

4 to 5, the locking structure between the push rod 9 and the bottom bracket 10 is unlocked, the push rod 9 extends forward from the front bracket 1, and the user can pull the push rod 9 in front of the stroller to make it move forward. In this use state, the seat frame 40 is removed, and one or two children are carried by the surrounding frame 3; of course, when the seat frame 40 is retained, a child is carried by the seat frame 40 and the surrounding frame 3 carries One or two children, and realize the advancement of the baby carriage by pulling the push rod 9 in front of the baby carriage.

When the stroller needs to be folded up, as shown in Fig. 6 to Fig. 10, the push rod 9 and the bottom bracket 10 are locked by a locking structure, so that the front bracket 1 is in a relatively folded and relatively fixed state, Turn the front backrest 36 and the rear backrest 37 respectively so that both are in the folded use state, then operate the unlocking operating part 34 at the rear part of the surrounding bar 31 to unlock the locking mechanism 5, and pull the rear part of the surrounding bar 31 from the rear of the stroller. The upper part is lifted up, so that the front bracket 1, the rear bracket 2, the surrounding frame 3 and the swing rod 4 are relatively rotated, the front bracket 1 and the rear bracket 2 are gradually gathered in the front and rear direction, and the surrounding frame 3 is gradually moved closer to the front bracket 1. With the rear side of the push rod 9, in this way, each rod on the bottom bracket 10 is gradually drawn in; then the upper push rod 92 of the push rod 9 is shrunk relative to the lower push rod 91, and the push rod 9 is turned forward to make it drive The front bracket 1 is flipped forward, so that the rear bracket 2 is further rotated forward towards the front bracket 1, and the surrounding frame 3 is also rotated thereupon to be further gathered on the rear side of the front bracket 1 and the push rod 9. The folded stroller is shown in Fig. 9 and Fig. 10. It has a flat structure and can be folded with a seat frame 40, and it can also rely on the front wheel assembly 20 and the rear wheel assembly 30 to stand on the ground.

Example 2

Referring to Figures 11 to 13 , the difference between this embodiment and Embodiment 1 mainly lies in the setting of the swing rod 4 . In this embodiment, when the stroller is unfolded, the swing link 4 is distributed in the up and down direction, the upper end of the swing link 4 is pivotally connected to the rear bracket 2 through the first shaft 7, and the lower end of the swing link 4 is connected through the second shaft 8 It is pivotally connected with the surrounding rod 31 , and the swing rod 4 is located at the rear side of the rear bracket 2 .

When the stroller is folded, the rear portion of the surrounding bar 31 is lifted upwards, and the bottom of the swing bar 4 is also lifted thereupon so that the swing bar 4 is turned over relative to the rear bracket, so that the front bracket 1, the rear bracket 2, the swing bar 4 and The surrounding rods 31 are relatively rotated, so that the front bracket 1 and the rear bracket 2 are gradually retracted along the front and rear directions, and the surrounding rods 31 are gradually retracted to the rear side of the front bracket 1 and the push rod 9 to realize the folding of the bottom bracket 10 .

Example 3

Referring to Figures 14 to 16, the difference between this embodiment and Embodiment 2 mainly lies in the setting of the swing rod 4 . In this embodiment, the baby carriage is in the expanded state, and the swing bar 4 is located at the front side of the rear bracket 2 . When the stroller is folded, relative rotation occurs between the front support 1 , the rear support 2 , the swing bar 4 and the surrounding bar 31 by lifting the rear portion of the surrounding bar 31 , so as to realize the folding of the bottom support 10 .

Example 4

Referring to Figures 17 to 19, the difference between this embodiment and Embodiment 2 mainly lies in the setting of the swing rod 4. In this embodiment, when the baby carriage is in the unfolded state, the swing rod 4 is stacked on one side of the rear bracket 2, which makes the structure of the rods of the baby carriage in the unfolded state very simple and beautiful.

To sum up, the multifunctional stroller of the present invention has a small number of rods and a simple structure. It can be used as a push cart or as a trailer; the stroller can also carry multiple children at the same time. It has good stability and bearing capacity, and its folding operation is also very simple and convenient, and the folded stroller can stand on the ground independently.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. A multifunctional baby carriage, comprising a bottom bracket, a front wheel assembly located at the bottom front of the bottom bracket, and a rear wheel assembly located at the bottom rear of the bottom bracket, characterized in that: the baby carriage also includes a push The lower part of the push rod is pivotally connected to the bottom bracket. The push rod has a push use state and a tow use state. When the push rod is in the push use state, the push rod moves from the front Gradually extend backwards; when the push rod is in the towing state, the push rod extends forward from the front of the bottom bracket, and there is a set between the push rod and the bottom bracket There is a locking structure for locking both such that the push rod is in the pushed use state. 2. The multifunctional stroller according to claim 1, characterized in that: the bottom bracket includes a front bracket extending upwardly from the front to the rear, extending upwardly from the rear to the front, and the upper part of which is pivoted to the upper part of the front bracket A shaft-connected rear bracket, and a link assembly connected between the front bracket and the rear bracket, the lower part of the push rod is pivotally connected to the lower part of the front bracket, when the push rod is in the When the towing state is used, the push rod extends forward from the lower part of the front bracket. 3. The multifunctional stroller according to claim 2, characterized in that: said linkage assembly at least comprises a surrounding frame extending along the front-to-back direction, said surrounding frame has a frame-shaped surrounding bar and a As for the human body supporting part, a human body supporting protection space is formed between the surrounding rod and the human body supporting part. 4. The multifunctional stroller according to claim 3, wherein the surrounding frame further comprises a front backrest arranged at the front of the surrounding pole, and/or a rear backrest disposed at the rear of the surrounding pole, Both the front backrest and the rear backrest are in an open use state extending in the up and down direction and supported on the surrounding rod. 5. The multifunctional stroller according to claim 4, characterized in that: the front backrest and the rear backrest are respectively pivotally connected to the surrounding bars, and the front backrest and the rear backrest also have a The folded use state extends in the front-back direction and is located between the human body support member and the surrounding pole along the up-down direction. 6. The multifunctional stroller according to claim 5, wherein the surrounding frame further comprises a front connecting frame extending downward from the front of the surrounding bar, and a front connecting frame extending downward from the rear of the surrounding bar. The rear connecting frame, the lower part of the front backrest is pivotally connected to the lower part of the front connecting frame, the rear backrest is pivotally connected to the lower part of the rear connecting frame, and the human support is connected to the between the lower part of the front connecting frame and the lower part of the rear connecting frame. 7. The multifunctional stroller according to any one of claims 3 to 6, characterized in that: the front part of the surrounding bar is pivotally connected to the lower part of the front bracket, and the link assembly further includes a pivot The swing rod connected between the rear bracket and the surrounding rod, the front bracket, the rear bracket, the surrounding rod and the swing rod form a four-bar linkage mechanism, the bottom bracket has an unfolded state and a folded state, and the The bottom bracket is also provided with a locking mechanism for locking the bottom bracket in the unfolded state. 8. The multifunctional stroller according to claim 7, characterized in that: the locking mechanism is arranged between the surrounding bar and the rear bracket, when the bottom bracket is in the unfolded state, the front bracket, A triangular structure is formed between the rear bracket and the surrounding rod, and an unlocking operating member for unlocking the locking mechanism is provided at the rear of the surrounding rod. 9. The multifunctional stroller according to claim 2, wherein the locking structure is arranged between the upper part of the front bracket and the push rod or between the upper part of the rear bracket and the push rod between. 10. The multifunctional stroller according to claim 9, wherein the push rod has a lower push rod and an upper push rod that slides and stretches relative to the lower push rod, wherein the locking structure is arranged on the lower push rod. Between the push rod and the front bracket, when the push rod is in a pushing state, the length extension direction of the lower push rod is parallel to the length extension direction of the front bracket.