Baby carriage

Abstract

The utility model belongs to the technical field of children products, and discloses a baby carriage. The baby carriage comprises a sitting bag pipe, an inclined supporting assembly, a vertical supporting rod and the like. The sitting bag pipe is used for hanging and bearing a cushion of a child. The two inclined supporting assemblies are symmetrically arranged on the two sides of the sitting bag pipe, each inclined supporting assembly comprises a first inclined supporting rod, a second inclined supporting rod and a rotating joint, the first inclined supporting rods are rotationally connected with the sitting bag pipe, the first inclined supporting rods are connected with the second inclined supporting rods through the rotating joints, and the rotating joints can be locked; the two vertical supporting rods are rotationally connected to the two first inclined supporting rods correspondingly. The two front wheel seats are respectively arranged on the two second inclined support rods; the two rear wheel seats are respectively arranged on the two vertical supporting rods; the two ends of the supporting piece are rotationally connected with the sitting bag pipe and the second inclined supporting rod on the same side respectively; the connecting rod assembly comprises two longitudinal connecting rods, and the two ends of each longitudinal connecting rod are arranged on the rear wheel seat and the front wheel seat on the same side respectively. The baby carriage is simple in structure, high in flexibility and capable of being quickly folded.

Description

Technical Field

[0001] The utility model relates to the technical field of children's articles, in particular to a children's stroller. Background Art

[0002] In the design of the frame structure of a children's stroller, in order to meet the convenience of consumers' carrying, the stroller frame is generally designed into a foldable structure, so that the stroller can be opened into a rideable form when in use, and can be folded into a smaller volume for convenient storage or carrying when not in use.

[0003] The folding method of the existing children's stroller is relatively cumbersome, and the linkage between components is not coherent enough. It is necessary to bend and disassemble the main body of the stroller multiple times before it can be completely folded, which brings certain inconvenience to consumers in daily use. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a children's stroller with a simple structure, strong flexibility, coherent linkage between components, and capable of realizing rapid folding.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] The utility model provides a children's stroller, including:

[0007] A seat bucket tube for mounting a seat cushion for carrying a child;

[0008] Two diagonal brace assemblies symmetrically arranged on both sides of the seat bucket tube. The diagonal brace assembly includes a first diagonal brace rod, a second diagonal brace rod and a rotating joint. The first diagonal brace rod is rotatably connected to the seat bucket tube, and the first diagonal brace rod is connected to the second diagonal brace rod through the rotating joint. The rotating joint can be locked so that the first diagonal brace rod and the second diagonal brace rod are fixed in a straight line along the length direction;

[0009] Two vertical struts rotatably connected to the two first diagonal brace rods respectively;

[0010] Two front wheel seats respectively arranged on the two second diagonal brace rods, and each front wheel seat is provided with a front traveling wheel;

[0011] Two rear wheel seats respectively arranged on the two vertical struts, and each rear wheel seat is provided with a rear traveling wheel;

[0012] A support piece, the two ends of which are respectively rotatably connected to the seat bucket tube and the second diagonal brace rod on the same side;

[0013] A connecting rod assembly including two longitudinal connecting rods, and the two ends of the longitudinal connecting rods are respectively arranged on the rear wheel seat and the front wheel seat on the same side.

[0014] Preferably, both ends of the longitudinal connecting rod are rotatably connected to the rear wheel seat and the front wheel seat respectively.

[0015] Preferably, the connecting rod assembly further includes a first transverse connecting rod, and both ends of the first transverse connecting rod are fixedly connected to the longitudinal connecting rods on both sides respectively.

[0016] Preferably, the connecting rod assembly further includes a second transverse connecting rod, and both ends of the second transverse connecting rod are connected to the rear wheel seats on both sides respectively.

[0017] Preferably, the baby stroller further includes a pull rod, the pull rod is arranged on the first transverse connecting rod, and the pull rod has a handle for pulling.

[0018] Preferably, the pull rod is rotatably arranged on the first transverse connecting rod.

[0019] Preferably, the baby stroller further includes a push rod, the push rod is connected to the first diagonal braces on both sides respectively, and the push rod is for a person to hold.

[0020] Preferably, the push rod is telescopically arranged on the first diagonal brace along the length direction of the first diagonal brace.

[0021] Preferably, a button is arranged on the push rod, an unlocking mechanism connected to the button is arranged inside the push rod, the unlocking mechanism is connected to the rotating joint, and pressing the button can unlock the rotating joint through the unlocking mechanism.

[0022] Preferably, the baby stroller further includes a partition frame, the partition frame is arranged on the seat tube, and the partition frame and the seat tube enclose a first seating space and a second seating space, and both the first seating space and the second seating space are used for accommodating children.

[0023] The beneficial effects of the present utility model are as follows:

[0024] The baby stroller provided by the present utility model is symmetrically provided with two diagonal brace assemblies on both sides of the seat tube. Since the vertical strut is connected to the rear wheel seat, the diagonal brace assemblies are respectively connected to the vertical strut and the front wheel seat, and a longitudinal connecting rod is arranged between the front wheel seat and the rear wheel seat. Therefore, when the rotating joint of the diagonal brace assembly is locked, a triangular structure is formed among the diagonal brace assembly on one side, the longitudinal connecting rod and the vertical strut, improving the overall structural stability of the stroller. Since the first diagonal brace rod and the second diagonal brace rod are rotationally matched through the rotating joint, when the rotating joint is unlocked, the first diagonal brace rod and the second diagonal brace rod can rotate relative to each other, and the two are flipped into a folded state. During this process, the rotation of the first diagonal brace rod drives the vertical strut to rotate relative to the rear wheel seat, and the vertical strut moves downward and approaches the front wheel seat to form a folded state; the rotation of the second diagonal brace rod drives the support piece to rotate relative to the seat tube, and the seat tube is also rotationally connected to the first diagonal brace rod. Therefore, the seat tube moves downward and approaches the front wheel seat to form a folded state. The baby stroller has a simple structure and good stability. By unlocking the rotating joint and folding the diagonal brace assembly, the seat tube and the vertical strut can be driven to fold synchronously, with convenient operation and strong flexibility, thus greatly improving the usability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural view of the baby stroller provided by the specific embodiment of the present utility model;

[0026] Figure 2 is a side view of the baby stroller provided by the specific embodiment of the present utility model in the unfolded state;

[0027] Figure 3 is a side view of the baby stroller provided by the specific embodiment of the present utility model in the preliminary folded state;

[0028] Figure 4 is a side view of the baby stroller provided by the specific embodiment of the present utility model in the intermediate folded state;

[0029] Figure 5 is a side view of the baby stroller provided by the specific embodiment of the present utility model in the completely folded state.

[0030] In the figure:

[0031] 1 - seat tube;

[0032] 2 - diagonal brace assembly; 21 - first diagonal brace rod; 22 - second diagonal brace rod; 23 - rotating joint;

[0033] 3 - vertical strut;

[0034] 4 - front wheel seat;

[0035] 6 - support piece;

[0036] 7 - Push rod; 71 - Button;

[0037] 8 - Linkage assembly; 81 - Longitudinal link; 82 - First transverse link; 83 - Second transverse link;

[0038] 9 - Pull rod; 91 - Handle;

[0039] 10 - Partition rack. Detailed implementation mode

[0040] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the sake of description, only the parts related to the present utility model are shown in the drawings, rather than all the structures.

[0041] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0042] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above and over", and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "below and under", and "under the bottom of" the second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the first feature is at a lower horizontal height than the second feature.

[0043] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", and "left" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0044] Such as Figures 1 to 5As shown in the figure, the present utility model provides a children's stroller, which includes a seat tube 1, two diagonal support assemblies 2, two vertical struts 3, two front wheel seats 4, two rear wheel seats, a support plate 6 and a connecting rod assembly 8. The seat tube 1 is used to mount a seat for carrying children; the two diagonal support assemblies 2 are symmetrically arranged on both sides of the seat tube 1. The diagonal support assembly 2 includes a first diagonal strut 21, a second diagonal strut 22 and a rotating joint 23. The first diagonal strut 21 is rotatably connected to the seat tube 1, and the first diagonal strut 21 is connected to the second diagonal strut 22 through the rotating joint 23. The rotating joint 23 can be locked so that the first diagonal strut 21 and the second diagonal strut 22 are fixed in a straight line along the length direction; the two vertical struts 3 are respectively rotatably connected to the two first diagonal struts 21; the two front wheel seats 4 are respectively arranged on the two second diagonal struts 22, and a front traveling wheel is arranged on each front wheel seat 4; the two rear wheel seats are respectively arranged on the two vertical struts 3, and a rear traveling wheel is arranged on each rear wheel seat; both ends of the support plate 6 are respectively rotatably connected to the seat tube 1 and the second diagonal strut 22 on the same side; the connecting rod assembly 8 includes two longitudinal connecting rods 81, and both ends of the longitudinal connecting rod 81 are respectively arranged on the rear wheel seat and the front wheel seat 4 on the same side. In this embodiment, Figures 2 to 5 In the figure, the spokes of the rear traveling wheel are hidden to facilitate viewing the rear wheel seat. Two diagonal support assemblies 2 are symmetrically arranged on both sides of the seat tube 1. Since the vertical strut 3 is connected to the rear wheel seat, the diagonal support assembly 2 is respectively connected to the vertical strut 3 and the front wheel seat 4, and a longitudinal connecting rod 81 is arranged between the front wheel seat 4 and the rear wheel seat. Therefore, when the rotating joint 23 of the diagonal support assembly 2 is locked, a triangular structure is formed among the diagonal support assembly 2, the longitudinal connecting rod 81 and the vertical strut 3 on one side, improving the overall structural stability of the stroller; since the first diagonal strut 21 and the second diagonal strut 22 are rotationally matched through the rotating joint 23, when the rotating joint 23 is unlocked, the first diagonal strut 21 and the second diagonal strut 22 can rotate relative to each other, and the two turn over to form a folded state. During this process, the rotation of the first diagonal strut 21 drives the vertical strut 3 to rotate relative to the rear wheel seat, and the vertical strut 3 moves downward and approaches the front wheel seat 4 to form a folded state; the rotation of the second diagonal strut 22 drives the support plate 6 to rotate relative to the seat tube 1, and the seat tube 1 is rotatably connected to the first diagonal strut 21, so the seat tube 1 moves downward and approaches the front wheel seat 4 to form a folded state; the structure of this children's stroller is simple and has good stability. By unlocking the rotating joint 23 and folding the diagonal support assembly 2, the seat tube 1 and the vertical strut 3 can be driven to fold synchronously, which is convenient to operate and highly flexible, thus greatly improving the convenience of use. Specifically, the first diagonal strut 21 is hinged to the seat tube 1, the vertical strut 3 is hinged to the first diagonal strut 21, the support plate 6 is hinged to the seat tube 1, and the second diagonal strut 22 through a pin shaft, so that they can rotate; when the rotating joint 23 is locked, the first diagonal strut 21 and the second diagonal strut 22 are in a straight line along the length direction and fixed as a whole, and at this time, the children's stroller is in an unfolded state.

[0045] Further, both ends of the longitudinal connecting rod 81 are respectively rotatably connected to the rear wheel seat and the front wheel seat 4. In this embodiment, both ends of the longitudinal connecting rod 81 are hinged to the rear wheel seat and the front wheel seat 4 through pin shafts, which further increases the flexibility between components when folding the baby stroller and prevents problems such as jamming or smooth folding during the folding process.

[0046] Further, as Figure 1 shown, the link assembly 8 further includes a first transverse connecting rod 82, and both ends of the first transverse connecting rod 82 are respectively fixedly connected to the longitudinal connecting rods 81 on both sides. In this embodiment, the first transverse connecting rod 82 is used to connect the longitudinal connecting rods 81 on both sides, thereby enhancing the overall structural strength and stability of the baby stroller. Specifically, at least two first transverse connecting rods 82 are provided, and the two first transverse connecting rods 82 at the outermost ends are respectively arranged close to the front wheel seat 4 and the rear wheel seat.

[0047] Specifically, as Figure 1 and Figure 2 shown, the link assembly 8 further includes a second transverse connecting rod 83, and both ends of the second transverse connecting rod 83 are respectively connected to the rear wheel seats on both sides. In this embodiment, a second transverse connecting rod 83 is connected between the two rear wheel seats on both sides, and the second transverse connecting rod 83 cooperates with the first transverse connecting rod 82 to further improve the structural strength and stability of the stroller.

[0048] Specifically, as Figure 1 shown, the baby stroller further includes a pull rod 9, the pull rod 9 is arranged on the first transverse connecting rod 82, and the pull rod 9 has a handle 91 for pulling. In this embodiment, the pull rod 9 is arranged on the first transverse connecting rod 82 on the side close to the front wheel seat 4, and the handle 91 is arranged on the pull rod 9, so as to facilitate pulling the stroller through the handle 91.

[0049] Specifically, the pull rod 9 is rotatably arranged on the first transverse connecting rod 82. In this embodiment, the pull rod 9 is rotatably arranged on the first transverse connecting rod 82. When folding the stroller, the pull rod 9 can be rotated towards the rear wheel seat to be parallel to the longitudinal connecting rod 81, so as to fold and place the pull rod 9 as well, saving space.

[0050] Further, as Figure 1 shown, the baby stroller further includes a push rod 7, the push rod 7 is respectively connected to the first diagonal braces 21 on both sides, and the push rod 7 is for human hand holding. In this embodiment, the push rod 7 is connected to the first diagonal braces 21 on both sides, so as to facilitate the user to push the stroller to move from the rear; specifically, the push rod 7 is located at the rear of the baby stroller. In contrast, the pull rod 9 is located at the front of the baby stroller, and the user can push or pull the baby stroller according to the scenario and their own needs.

[0051] Specifically, the push rod 7 is telescopically arranged on the first diagonal brace 21 along the length direction of the first diagonal brace 21. In this embodiment, the push rod 7 has a U-shaped structure, and the first diagonal brace 21 has a hollow structure. The end tubes on both sides of the push rod 7 are respectively inserted into the first diagonal braces 21 on both sides. The user can adjust the position of the push rod 7 by adjusting the depth of the end tubes on both sides of the push rod 7 inserted into the first diagonal braces 21 to meet their own height requirements; at the same time, during the folding process, the push rod 7 can also be retracted into the first diagonal brace 21 to reduce the occupied space.

[0052] Specifically, as Figure 1 shown, a button 71 is arranged on the push rod 7, and an unlocking mechanism connected to the button 71 is arranged inside the push rod 7. The unlocking mechanism is connected to the rotating joint 23. Pressing the button 71 can unlock the rotating joint 23 through the unlocking mechanism. In this embodiment, the push rod 7 has a hollow structure, and the unlocking mechanism is the same as the telescopic buckle structure inside the luggage handle. They are both commonly used automatic locking structures in the art, mainly composed of components such as a horizontal lever, a return spring, a vertical rod, and an inclined top slider. The specific action process and principle are not elaborated here. The rotating joint 23 is also a commonly used relative rotation structure in the art, mainly including an upper rotating body, a lower rotating body, and a latch arranged in the upper rotating body. The upper rotating body is fixedly connected to the first diagonal brace 21, the lower rotating body is arranged opposite to the upper rotating body and the lower rotating body is fixedly connected to the second diagonal brace 22. An arc-shaped groove and a chute for the latch to slide are arranged on the upper rotating body. The latch is slidably arranged in the chute and one end of the latch is provided with a return spring. One end of the return spring abuts against the edge shell of the lower rotating body and the other end abuts against the latch, so that the latch is always located at the locking position in the chute; a convex block cooperating with the arc-shaped groove is arranged on the lower rotating body. After the upper rotating body and the lower rotating body are buckled, the convex block is caught in the arc-shaped groove and can slide in the arc-shaped groove, so that the upper rotating body and the lower rotating body rotate relative to each other; a limiting groove is also arranged on the lower rotating body. The latch located at the locking position can be caught in the limiting groove and the latch abuts against the inner wall of the limiting groove, thereby forming a limit on the lower rotating body to prevent relative rotation between the lower rotating body and the upper rotating body; the vertical rod of the unlocking mechanism passes over the end of the inclined top slider and is connected to the latch. When the user presses the button 71, the vertical rod will drive the latch on the upper rotating body to slide along the chute of the upper rotating body against the elastic force of the return spring to the unlocking position. At this time, the latch is disengaged from the engagement with the limiting groove, and the lower rotating body can rotate relative to the upper rotating body; in addition, when the user presses the button 71, the inclined top slider moves under the drive of the vertical rod, so that the push rod 7 can be retracted into or extended out of the first diagonal brace 21, that is, the telescoping of the push rod 7 and the unlocking / locking of the rotating joint 23 are carried out simultaneously.

[0053] Further, as Figure 1As shown, the baby stroller further includes a partition frame 10 disposed on the seat tube 1. The partition frame 10 and the seat tube 1 enclose a first seating space and a second seating space, both of which are used to accommodate children. In this embodiment, the seat tube 1 is connected end to end to form a closed rectangular structure, and the partition frame 10 is straddled on the seat tube 1, thereby dividing the seat tube 1 into two spaces. The partition frame 10 is provided with a storage groove for placing items such as children's water bottles and toys. Cushions are hung on both the first seating space and the second seating space formed by the partition. Therefore, this baby stroller can carry two children at the same time when traveling.

[0054] As Figures 2 to 5 shown, the folding process of the baby stroller provided in this embodiment is generally as follows:

[0055] First, in the normal unfolded state of the baby stroller, the user presses the button 71 on the push rod 7, then the unlocking mechanism inside the push rod 7 operates, and the push rod 7 can retract into the first diagonal strut 21 along the length direction of the first diagonal strut 21. At the same time, the vertical pull rod of the unlocking mechanism lifts the block in the rotating joint 23, causing the block to move from the locked position to the unlocked position. At this time, the rotating joint 23 is unlocked, and the upper and lower rotors of the rotating joint 23 can rotate relative to each other.

[0056] After unlocking the rotating joint 23, the user bends the diagonal strut assembly 2 with the rotating joint 23 as the axis, so that the two ends of the first diagonal strut 21 and the second diagonal strut 22 approach each other and fold. The first diagonal strut 21 drives the vertical strut 3 to rotate relative to the rear wheel seat, and the second diagonal strut 22 rotates relative to the front wheel seat 4. The vertical strut 3 topples forward along with the first diagonal strut 21 during this process. The second diagonal strut 22 drives the support plate 6 to rotate relative to the seat tube 1, and the seat tube 1 moves horizontally downward close to the connecting rod assembly 8 at the bottom until the first diagonal strut 21, the second diagonal strut 22, and the vertical strut 3 are all close to a parallel state and lean against each other. At this point, the folding of this baby stroller is completed. It should be noted that during the entire folding process, since the longitudinal connecting rod 81 is respectively rotatably connected to the front wheel seat 4 and the rear wheel seat at both ends, relative rotation can also occur between the longitudinal connecting rod 81 and the front wheel seat 4 and the rear wheel seat during the folding process to cooperate with the folding of the upper diagonal strut assembly 2, thereby avoiding problems such as jamming or smooth folding between components during the folding process.

[0057] Obviously, the above-mentioned embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A baby stroller, characterized in that: include: A seat tube (1) for mounting a seat cushion for carrying a child; Two diagonal brace assemblies (2) are symmetrically arranged on both sides of the seat tube (1), the diagonal brace assembly (2) comprising a first diagonal brace rod (21), a second diagonal brace rod (22) and a rotating joint (23), the first diagonal brace rod (21) being rotatably connected to the seat tube (1), the first diagonal brace rod (21) being connected to the second diagonal brace rod (22) via the rotating joint (23), the rotating joint (23) being lockable so that the first diagonal brace rod (21) and the second diagonal brace rod (22) are fixed in a straight line along the length direction; Two vertical support rods (3) are rotatably connected to the two first diagonal support rods (21) respectively; Two front wheel seats (4) are respectively arranged on the two second diagonal support rods (22), and each of the front wheel seats (4) is provided with a front running wheel; Two rear wheel seats are respectively arranged on the two vertical support rods (3), and each of the rear wheel seats is provided with a rear running wheel; A support plate (6), two ends of which are rotatably connected to the seat tube (1) and the second diagonal support rod (22) on the same side respectively; The connecting rod assembly (8) comprises two longitudinal connecting rods (81), and the two ends of the longitudinal connecting rods (81) are respectively arranged on the rear wheel seat and the front wheel seat (4) on the same side.

2. The baby stroller according to claim 1, characterized in that: The two ends of the longitudinal connecting rod (81) are rotatably connected to the rear wheel seat and the front wheel seat (4) respectively.

3. The baby stroller according to claim 1, characterized in that: The connecting rod assembly (8) further comprises a first transverse connecting rod (82), the two ends of which are respectively fixedly connected to the longitudinal connecting rods (81) on both sides.

4. The child stroller according to claim 3, characterized in that: The connecting rod assembly (8) also includes a second transverse connecting rod (83), and the two ends of the second transverse connecting rod (83) are respectively connected to the rear wheel seats on both sides.

5. The child stroller according to claim 3, characterized in that: The child stroller further comprises a pull rod (9), wherein the pull rod (9) is arranged on the first transverse connecting rod (82), and the pull rod (9) has a handle (91) for pulling.

6. The child stroller according to claim 5, characterized in that: The pull rod (9) is rotatably arranged on the first transverse connecting rod (82).

7. The baby stroller according to claim 1, characterized in that: The child stroller further comprises a push rod (7), wherein the push rod (7) is respectively connected to the first diagonal support rods (21) on both sides, and the push rod (7) is used for being held by a human hand.

8. The child stroller according to claim 7, characterized in that: The push rod (7) is telescopically arranged on the first diagonal support rod (21) along the length direction of the first diagonal support rod (21).

9. The child stroller according to claim 8, characterized in that: The push rod (7) is provided with a button (71), and an unlocking mechanism connected to the button (71) is provided inside the push rod (7). The unlocking mechanism is connected to the rotating joint (23), and pressing the button (71) can unlock the rotating joint (23) through the unlocking mechanism.

10. The child stroller according to claim 1, characterized in that: The child stroller further comprises a partition frame (10), wherein the partition frame (10) is arranged on the seat tube (1), and the partition frame (10) and the seat tube (1) enclose a first riding space and a second riding space, wherein the first riding space and the second riding space are both used to accommodate children.

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