CN108100011B - Multifunctional baby carriage - Google Patents

Abstract

The invention discloses a multifunctional baby carrier, which comprises a bottom bracket, a front wheel assembly arranged at the front part of the bottom bracket, a rear wheel assembly arranged at the rear part of the bottom bracket, and a push rod, wherein the lower part of the push rod is pivotally connected to the bottom bracket, the push rod has a pushing use state and a dragging use state, and when the push rod is in the pushing use state, the push rod gradually inclines upwards from front to back; when the push rod is in the towing use state, the push rod extends forwards from the front part of the bottom bracket, and a locking structure for locking the push rod and the bottom bracket is further arranged between the push rod and the bottom bracket, so that the push rod is in the pushing use state. Therefore, the use mode of the baby carrier is increased on the premise of not affecting the bearing performance of the baby carrier, and the use interestingness of the baby carrier is improved.

Description

Multifunctional baby stroller

Technical Field

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

Background technique

Baby strollers provide great convenience for people to carry small children for outdoor activities. In the prior art, baby strollers have various structures, but most of them can only be used for pushing, that is, adults stand behind the stroller to push the stroller, and the use method is relatively simple. 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, and the frame has a tow bar. Adults can stand in front of the trailer and pull the trailer forward through the tow bar. The use function and scope are also very simple.

Summary of the invention

The purpose of the present invention is to provide a multifunctional baby carriage which can be used as both a push cart and a trailer, so as to expand the function and application range of the baby carriage.

To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a multifunctional baby stroller, including a bottom bracket, a front wheel assembly arranged at the front bottom of the bottom bracket, and a rear wheel assembly arranged at the rear bottom of the bottom bracket. The baby stroller also includes a push rod, and the lower pivot of the push rod is connected to the bottom bracket. The push rod has a pushing use state and a towing use state. When the push rod is in the pushing use state, the push rod gradually extends upward from front to rear; when the push rod is in the towing use state, the push rod extends forward from the front of the bottom bracket, and a locking structure is provided between the push rod and the bottom bracket for locking the two so that the push rod is in the pushing use state.

Preferably, the bottom bracket includes a front bracket extending upward from front to rear, a rear bracket extending upward from rear to front and having an upper portion pivotally connected to an upper portion of the front bracket, and a connecting rod assembly connected between the front bracket and the rear bracket, the lower portion of the push rod being pivotally connected to a lower portion of the front bracket, and when the push rod is in the towing use state, the push rod extends forward from a lower portion of the front bracket.

Furthermore, the connecting rod assembly at least includes a surrounding frame extending in the front-rear direction, the surrounding frame has a frame-shaped surrounding rod and a human body support member located below the surrounding rod, and a human body support protection space is formed between the surrounding rod and the human body support member.

Furthermore, the enclosure frame also includes a front backrest arranged at the front of the enclosure rod, and/or a rear backrest arranged at the rear of the enclosure rod, and both the front backrest and the rear backrest have an open use state extending in the up-down direction and supported on the enclosure rod.

Furthermore, the front backrest and the rear backrest are respectively pivotally connected to the enclosure rod, and the front backrest and the rear backrest also have a folded use state extending in the front-to-back direction and located between the human body support and the enclosure rod in the up-down direction.

As a specific embodiment, the enclosure frame also includes a front connecting frame extending downward from the front of the enclosure rod, and a rear connecting frame extending downward from the rear of the enclosure rod, the lower pivot of the front backrest is connected to the lower part of the front connecting frame, the rear backrest is pivoted to the lower part of the rear connecting frame, and the human body support is connected between the lower part of the front connecting frame and the lower part of the rear connecting frame.

Preferably, the front portion of the enclosure rod is pivotally connected to the lower portion of the front bracket, the connecting rod assembly also includes a rocker rod pivotally connected between the rear bracket and the enclosure rod, a four-bar mechanism is formed between the front bracket, the rear bracket, the enclosure rod and the rocker rod, the bottom bracket has an expanded state and a folded state, and the bottom bracket is also provided with a locking mechanism for locking the bottom bracket in the expanded state.

Furthermore, the locking mechanism is arranged between the enclosure 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 enclosure rod. An unlocking operating member for unlocking the locking mechanism is also provided at the rear of the enclosure rod.

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

Furthermore, the push rod has a lower push rod and an upper push rod that slides and retracts relative to the lower push rod, wherein the locking structure is arranged between the lower push rod and the front bracket, and when the push rod is in a pushing and using 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 technical solution, the present invention has the following advantages compared with the prior art: the multifunctional baby stroller of the present invention, wherein the push rod is pivotally connected to the bottom bracket, and the locking and unlocking of the locking structure between the push rod and the bottom bracket enable the push rod to have a pushing state in which it extends obliquely from the front to the back for pushing, and a towing state in which it extends forward from the bottom bracket for dragging by the user. In this way, the use of the baby stroller is increased without affecting the load-bearing performance of the baby stroller, and the use interest of the baby stroller is improved.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a perspective view of the baby carriage of Example 1 in the unfolded state, wherein the push rod is in the pushing state, and the front backrest and the rear backrest are both in the opened state;

Figure 2 is a side view of Figure 1;

FIG3 is a side view of the baby carriage of Example 1 in an unfolded state, wherein the front backrest and the rear backrest are both in a folded use state;

FIG4 is a perspective view of the baby carriage of Example 1 in an unfolded state, wherein the push rod is in a towing use state;

Figure 5 is a side view of Figure 4;

FIG6 is a schematic diagram of the folding principle of the baby carriage of Example 1;

FIG. 7 is a side view of the baby carriage of Example 1 in a semi-folded state;

FIG8 is a perspective view of the baby carriage of Example 1 in a semi-folded state;

FIG9 is a perspective view of the baby carriage of Example 1 in a folded state;

FIG10 is a side view of the baby carriage of Example 1 in a folded state;

FIG11 is a schematic side view of the baby carriage of Example 2 in an unfolded state;

FIG12 is a side view of the baby carriage of Example 2 in a semi-folded state;

FIG13 is a side view of the baby carriage of Example 2 in a folded state;

FIG14 is a schematic side view of the baby carriage of Example 3 in an unfolded state;

FIG15 is a side view of the baby carriage of Embodiment 3 in a semi-folded state;

FIG16 is a side view of the baby carriage of Example 3 in a folded state;

FIG17 is a side view of the baby carriage of Example 4 in an unfolded state;

FIG18 is a side view of the baby carriage of Embodiment 4 in a semi-folded state;

FIG19 is a side view of the baby carriage of Example 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 operating member; 35, human body support member; 36, front backrest; 37, rear backrest; 4, rocker arm; 5, locking mechanism; 6, rotating joint; 7, first axis; 8, second axis; 9, push rod; 91, lower push rod; 92, upper push rod; 93, locking member; 94, push rod unlocking member; 20, front wheel assembly; 30, rear wheel assembly; 40, seat rack.

Detailed ways

The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

The following descriptions of directions are all defined with reference to the front, back, left, and right directions observed by an operator when the stroller is used as a stroller.

Example 1

Referring to the multifunctional baby carriage shown in FIGS. 1 to 5 , the baby carriage comprises a bottom bracket 10, a front wheel assembly 20 arranged at the bottom front part of the bottom bracket 10, a rear wheel assembly 30 arranged at the bottom rear part of the bottom bracket 10, and a push rod 9, wherein the bottom bracket 10 is used to support the human body when the baby carriage is used. The lower pivot of the push rod 9 is connected to the bottom bracket 10, and the push rod 9 has a pushing state and a dragging state. When the push rod 9 is in the pushing state, as shown in FIGS. 1 to 3 , the push rod 9 gradually extends upward from the front to the back, and at this time, the user can stand at the rear side of the baby carriage and push the push rod 9 to drive the baby carriage forward; when the push rod 9 is in the dragging state, as shown in FIGS. 4 and 5 , the push rod 9 extends forward from the front part of the bottom bracket 10, and the user can stand in front of the baby carriage and pull the push rod 9 to drive the baby carriage forward.

A locking structure is also provided between the push rod 9 and the bottom bracket 10 to lock the two so that the push rod 9 is in a pushing use state. When the push rod 9 needs to be converted from a pushing use state to a towing use state, it is only necessary to unlock the above-mentioned locking structure so that the push rod 9 is separated from the locking connection with the bottom bracket 10, and then pull the push rod 9 forward.

Specifically, referring to Figures 1 to 10, the bottom bracket 10 includes a front bracket 1 extending upward from front to rear, a rear bracket 2 extending upward from rear to front and having an upper portion pivotally connected to an upper portion of the front bracket 1, and a connecting rod assembly connected between the front bracket 1 and the rear bracket 2. The front wheel assembly 20 is disposed at the lower portion of the front bracket 1, and the rear wheel assembly 30 is disposed at the lower portion 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 upper part of the front bracket 1 and the push rod 9 or between the upper part of the rear bracket 2 and the push rod 9. The front bracket 1 and the rear bracket 2 have two groups arranged 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 rotating joint 6; the locking structure is arranged between the push rod 9 and the rotating joint 6. When the push rod 9 is in the state of pushing, 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 state of dragging, the push rod 9 extends forward from the lower part of the front bracket 1 to be dragged by the operator.

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

Referring to Figures 1 to 5, the connecting rod assembly arranged between the front bracket 1 and the rear bracket 2 includes at least a surrounding frame 3, which includes a surrounding rod 31 that is frame-shaped and extends along the front-to-back direction and a human body support 35 located below the surrounding rod 31, and a human body support protection space is formed between the surrounding rod 31 and the human body support 35 to provide support for a human body when sitting or lying down.

The surrounding frame 3 also includes a front backrest 36 arranged at the front of the surrounding rod 31, and/or a rear backrest 37 arranged at the rear of the surrounding rod 31. Here, the surrounding frame 2 is provided with both the front backrest 36 and the rear backrest 37. The front backrest 36 is pivotally connected to the front of the surrounding rod 31, and the rear backrest 37 is pivotally connected to the rear of the surrounding rod 31. The front backrest 36 and the rear backrest 37 both have an open use state extending in the up-down direction and supported on the surrounding rod 31 (as shown in Figures 1, 2, 4, and 5), and a folded use state extending in the front-to-back direction and located between the human body support 35 and the surrounding rod 31 in the up-down direction (as shown in Figure 3).

Specifically, in this embodiment, as shown in FIGS. 1 to 5 , the enclosure frame 3 further includes a front connecting frame 32 extending downward from the front of the enclosure rod 31 and a rear connecting frame 33 extending downward from the rear of the enclosure rod 31, wherein the front connecting frame 32 extends obliquely forward and downward from the front of the enclosure rod 31, and the rear connecting frame 33 extends obliquely backward and downward from the rear of the enclosure rod 31. The front backrest 36 is pivotally connected to the lower part of the front connecting frame 32, and the front backrest 36 is supported on the front rod portion of the enclosure rod 31 when unfolded; the rear backrest 37 is pivotally connected to the lower part of the rear connecting frame 33, and the rear backrest 37 is supported on the rear rod portion of the enclosure rod 31 when unfolded. The front backrest 36 and the rear backrest 37 are both located in the frame-shaped side enclosure of the enclosure rod 31, and both are in a U-shaped structure with the opening facing downward in the open use state, thereby providing a back support for a child sitting or lying on the human body support member 35. The human body support 35 is connected between the lower part of the front connecting frame 32 and the lower part of the rear connecting frame 33 . The human body support 35 may be specifically a cloth cover or a support plate.

As shown in Figures 1 to 5, the front portion of the enclosure 31 is pivotally connected to the lower portion of the front bracket 1; the connecting rod assembly provided between the front bracket 1 and the rear bracket 2 also includes a rocker bar 4, one end of the rocker bar 4 is pivotally connected to the rear bracket 2 via a first axis 7, and the other end of the rocker bar 4 is pivotally connected to the enclosure 31 via a second axis 8, so that a four-bar linkage is formed between the front bracket 1, the rear bracket 2, the enclosure 31 and the rocker bar 4, so that the rods on the bottom bracket 10 can rotate relative to each other so that the bottom bracket 10 has an unfolded state and a folded state, and the bottom bracket 10 is also provided with a locking mechanism 5 for locking the bottom bracket 10 in the unfolded state.

In this embodiment, the locking mechanism 5 is arranged between the surrounding rod 31 and the rear bracket 2. As shown in Figures 1 to 5, when the bottom bracket 10 is locked in the unfolded state, a triangular structure is formed between the front bracket 1, the rear bracket 2 and the surrounding rod 31, so that the bottom bracket 10 has good stability and load-bearing performance; the second axis 8 is located in front of the first axis 7, and the swing rod 4 is located below the surrounding rod 31 and is roughly parallel to the surrounding rod 31, so that the appearance of the baby carriage is relatively simple and beautiful. The rear part of the surrounding rod 31 is also provided with an unlocking operating member 34 for unlocking the above-mentioned locking mechanism 5. Here, the locking mechanism 5 can specifically adopt a lock hook set on the surrounding rod 31 and a lock column set on the rear bracket 2. The locking mechanism 5 is locked by the cooperation of the above-mentioned lock hook and the lock column to achieve the locking connection between the surrounding rod 31 and the rear bracket 2.

As shown in the drawings, the baby carriage further includes a seat frame 40 detachably mounted on the bottom frame 10 .

The following is a detailed description of the usage of the baby stroller:

As shown in FIGS. 1 to 3 , the push rod 9 and the bottom bracket 10 are locked by a locking structure and are in a pushing and using state. In this using state, the grafted seat frame 40 can carry a child; at the same time, the front backrest 36 and the rear backrest 37 on the surrounding frame 3 can be both in an upright state and in an open using state, and the surrounding frame 3 can carry one or two more children; it is also possible to only stand up the rear backrest 37 so that only one child is carried on the surrounding frame 3; it is also possible to turn down the front backrest 36 and the rear backrest 37 so that both the front backrest 36 and the rear backrest 37 are in a folded using state, and the surrounding frame 3 does not carry a child, but only the seat frame 40 carries the child, 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 baby carriage is moved forward by pushing the push rod 9 at the rear side of the baby carriage.

As shown in Fig. 4 and Fig. 5, the locking structure between the push rod 9 and the bottom bracket 10 is unlocked, and the push rod 9 extends forward from the front bracket 1, so that the user can pull the push rod 9 in front of the baby carriage 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, the seat frame 40 can also be retained, and one child can be carried by the seat frame 40 and one or two children can be carried on the surrounding frame 3, and the baby carriage can be moved forward by pulling the push rod 9 in front of the baby carriage.

When the baby carriage needs to be folded up, as shown in FIGS. 6 to 10, the push rod 9 is locked with the bottom bracket 10 by the locking structure, so that the push rod 9 and the bottom bracket 10 are in a relatively folded and relatively fixed state with the front bracket 1, the front backrest 36 and the rear backrest 37 are respectively turned over so that both are in a folded and used state, and then the unlocking operation member 34 at the rear of the surrounding rod 31 is operated to unlock the locking mechanism 5, and the rear part of the surrounding rod 31 is lifted upward from the rear of the baby carriage, so that the front bracket 1, the rear bracket 2, the surrounding frame 3 and the swing arm are in a relatively folded and relatively fixed state. 4 rotates relative to each other, the front bracket 1 and the rear bracket 2 gradually close together in the front-to-back direction, and the surrounding frame 3 gradually approaches the rear side of the front bracket 1 and the push rod 9, so that the rods on the bottom bracket 10 are gradually closed together; then the upper push rod 92 of the push rod 9 is retracted relative to the lower push rod 91, and the push rod 9 is flipped forward, so that it drives the front bracket 1 to flip forward, so that the rear bracket 2 further rotates forward toward the front bracket 1 and closes together, and the surrounding frame 3 also rotates accordingly and further closes to the rear side of the front bracket 1 and the push rod 9. The folded baby carriage is shown in Figures 9 and 10. It has a flat structure and can be folded with the seat frame 40, and can also stand on the ground by relying on the front wheel assembly 20 and the rear wheel assembly 30.

Example 2

11 to 13 , the difference between this embodiment and the first embodiment mainly lies in the arrangement of the swing rod 4. In this embodiment, when the baby carriage is unfolded, the swing rod 4 is distributed in the up-down direction, the upper end of the swing rod 4 is pivotally connected to the rear bracket 2 through the first shaft 7, the lower end of the swing rod 4 is pivotally connected to the surrounding rod 31 through the second shaft 8, and the swing rod 4 is located at the rear side of the rear bracket 2.

When the baby carriage is folded, the rear part of the surrounding rod 31 is lifted upward, and the lower part of the swing rod 4 is also lifted accordingly, so that the swing rod 4 is flipped relative to the rear bracket, so that the front bracket 1, the rear bracket 2, the swing rod 4 and the surrounding rod 31 rotate relative to each other, so that the front bracket 1 and the rear bracket 2 are gradually retracted in the front-to-back direction, and the surrounding rod 31 is gradually retracted to the rear side of the front bracket 1 and the push rod 9, so that the bottom bracket 10 is folded.

Example 3

As shown in Figures 14 to 16, the difference between this embodiment and embodiment 2 mainly lies in the arrangement of the swing bar 4. In this embodiment, when the baby carriage is in the unfolded state, the swing bar 4 is located in front of the rear frame 2. When the baby carriage is folded, the rear part of the surrounding bar 31 is lifted to cause relative rotation between the front frame 1, the rear frame 2, the swing bar 4 and the surrounding bar 31, thereby realizing the folding of the bottom frame 10.

Example 4

17 to 19, the difference between this embodiment and embodiment 2 mainly lies in the arrangement 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 support 2, which makes the structure of the rod of the baby carriage in the unfolded state very simple and beautiful.

In summary, the multifunctional baby carriage of the present invention has a small number of rods and a simple structure. It can be used as a stroller and a trailer. The baby carriage can also carry multiple children at the same time. It has good stability and load-bearing performance in the unfolded state. The folding operation is also very simple and convenient. The folded baby carriage can stand on the ground by itself.

The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a multifunctional baby carrier, includes the bottom bracket, locates the anterior front wheel subassembly of bottom bracket bottom, locate the rear wheel subassembly of bottom bracket bottom rear portion, its characterized in that: the baby carrier also comprises a push rod and a seat pocket frame which is detachably arranged on the bottom bracket, wherein the lower part of the push rod is pivotally connected to the bottom bracket, the bottom bracket is provided with an unfolding state and a folding state, the bottom bracket comprises a front bracket which extends from front to back and is upwards inclined, a rear bracket which extends from back to front and is pivotally connected with the upper part of the front bracket, and a connecting rod assembly which is connected between the front bracket and the rear bracket, the connecting rod assembly at least comprises a surrounding frame which extends along the front and rear directions, the surrounding frame is provided with a surrounding rod with a frame shape and a human body supporting piece positioned below the surrounding rod, a human body supporting protection space is formed between the surrounding rod and the human body supporting piece, the front part of the surrounding rod is pivotally connected with the lower part of the front bracket, the connecting rod assembly also comprises a swinging rod, the front bracket, the rear bracket, the surrounding rod and a four-connecting-rod mechanism are formed between the front bracket and the surrounding rod, and the connecting rod assembly is provided with a pushing-using state and a pulling-using state, and the pushing rod extends from front to the rear side when the push rod is in the using state; when the push rod is in the towing use state, the push rod extends forwards from the front part of the bottom bracket, and a locking structure for locking the push rod and the bottom bracket is further arranged between the push rod and the bottom bracket, so that the push rod is in the pushing use state.

2. A multi-function stroller according to claim 1, wherein: the lower portion of the push rod is pivotally connected to the lower portion of the front bracket, and the push rod extends forwardly from the lower portion of the front bracket when the push rod is in the towed use state.

3. A multi-function stroller according to claim 2, wherein: the frame is characterized in that the frame also comprises a front backrest arranged at the front part of the enclosing rod and/or a rear backrest arranged at the rear part of the enclosing rod, and the front backrest and the rear backrest are respectively provided with an open use state extending along the up-down direction and supported on the enclosing rod.

4. A multi-function stroller according to claim 3, wherein: the front backrest and the back backrest are respectively and pivotally connected to the surrounding rod, and the front backrest and the back backrest also have folding use states extending along the front-back direction and being positioned between the human body support piece and the surrounding rod along the up-down direction.

5. The utility model as claimed in claim 4, wherein: the frame is enclosed still including from enclose the front portion downwardly extending's of pole preceding link, from enclose the rear portion downwardly extending's of pole back link, the lower part pivot connection of preceding back is in on the lower part of preceding link, back pivot connection is in on the lower part of back link, human support piece connects before the lower part of link with between the lower part of back link.

6. A multi-function stroller according to any of the claims 2-5, characterized in that: the bottom bracket is also provided with a locking mechanism for locking the bottom bracket in an unfolded state.

7. A multi-function stroller according to claim 6, wherein: the locking mechanism is arranged between the surrounding rod and the rear support, when the bottom support is in a unfolding state, a triangular structure is formed among the front support, the rear support and the surrounding rod, and an unlocking operation piece for unlocking the locking mechanism is further arranged at the rear part of the surrounding rod.

8. A multi-function 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.

9. A multi-function stroller according to claim 8, wherein: the push rod is provided with a lower push rod and an upper push rod which slides and stretches relative to the lower push rod, wherein the locking structure is arranged between the lower push rod and the front support, and when the push rod is in a pushing use state, the length extending direction of the lower push rod is parallel to the length extending direction of the front support.