A folding stroller frame and stroller

Abstract

This utility model discloses a foldable stroller frame and stroller, relating to the field of infant and toddler product technology. It includes a combination frame, a first wheel frame, a second wheel frame, a support frame, a handle, and a linkage. One end of the first wheel frame is hinged to the end of the combination frame; the second wheel frame is hinged to the combination frame; both ends of the support frame are hinged to the first and second wheel frames respectively. A portion of the combination frame, a portion of the first wheel frame, the second wheel frame, and the support frame are combined on the same plane to form a quadrilateral. This utility model, by providing a rotatable handle and transmitting power through the linkage to the support frame, allows the handle to fold synchronously during the folding process through the relative rotation of the support frame and the first wheel frame. This achieves the folding of the entire stroller and handle in a single operation, eliminating the need for multiple operations. Furthermore, the foldable handle design saves space and facilitates storage.

Description

Technical Field

[0001] This utility model relates to the field of infant and toddler products technology, and in particular to a folding baby stroller frame and baby stroller. Background Technology

[0002] Strollers are widely used in families with infants and toddlers. To better meet people's needs for the portability of strollers, most stroller frames are now designed to be foldable. This way, the stroller is open when in use, and the frame can be folded up when not in use to make the stroller smaller for easy storage or carrying.

[0003] For example, the stroller frame with publication number CN105984481A does not require disassembly of the support device when folding; the support device can be folded together with the stroller frame via a linkage. However, in this design, the armrests do not fold together after folding, resulting in the armrests still occupying a significant amount of space after the frame is folded, increasing the folded thickness and thus taking up more storage space, making it inconvenient for storage and carrying. Utility Model Content

[0004] In view of this, the present invention proposes a foldable stroller frame and stroller. By setting a rotatable handlebar and transmitting power to the support frame through a linkage, the handlebar is driven to flip and fold synchronously during the folding process through the relative rotation of the support frame and the first wheel frame. Thus, the entire stroller and the handlebar can be folded in one operation without the need for multiple operations. Moreover, the foldable handlebar design saves space and makes it convenient for storage.

[0005] The technical solution of this utility model is implemented as follows: On the one hand, this utility model provides a foldable stroller frame, including a combination frame, a first wheel frame, a second wheel frame, a support frame, a handle, and a linkage component, wherein, One end of the first wheel frame is hinged to the end of the combined frame; The second wheel frame is hinged to the combined frame; The two ends of the support frame are hinged to the first wheel frame and the second wheel frame respectively. A portion of the combined frame, a portion of the first wheel frame, the second wheel frame and the support frame are combined on the same plane to form a quadrilateral. The handrail is hinged to the end of the first wheel frame near the combined frame; The two ends of the linkage are respectively set on the support frame and the handrail, and the support frame and the handrail are connected by transmission.

[0006] Based on the above technical solutions, preferably, it also includes a support frame, which is disposed on the second wheel frame and the support frame, and the support frame is used to support the infant.

[0007] More preferably, the support frame includes a frame, connectors, and crossbars, wherein, One end of the frame is hinged to the second wheel frame, and the other end is mounted on the support frame; The connector is fitted onto the support frame and can rotate on the support frame. The frame passes through the connector and is slidably connected to the connector. The crossbar is fixed to the connector.

[0008] Based on the above technical solutions, preferably, the support frame includes a crossbar, which is horizontally arranged and both ends of the crossbar are rotatably mounted on the first wheel frame.

[0009] More preferably, the crossbar is provided with a protrusion, which is hinged to one end of the linkage.

[0010] Based on the above technical solutions, preferably, the combined frame includes a shaping frame and a push-pull frame, wherein, The end of the shaping frame is hinged to the first wheel frame, and the shaping frame and the first wheel frame are on the same plane when not folded; The end of the pusher is set on the shaping frame and fixed relative to the shaping frame.

[0011] More preferably, the combination frame further includes a locking mechanism, which is disposed at the connection between the shaping frame and the push frame, and is used to lock the shaping frame and the push frame.

[0012] More preferably, the end of the shaping frame is provided with a locking groove, and the locking mechanism includes a locking element, a rotating element, and a pull rope, wherein, The locking element is mounted on the pusher and inserted into the locking slot. The pusher has space for the locking element to move so that the locking element can leave the locking slot. The rotating component is rotatably mounted at the connection between the shaping frame and the pusher frame and is inserted into the locking component. The rotating component is provided with a pushing part, which is used to push the locking component away from the locking groove by rotation. One end of the pull rope is attached to the rotating component to drive the component to rotate.

[0013] On the other hand, this utility model provides a baby stroller, including the above-mentioned folding baby stroller frame.

[0014] The folding stroller frame and stroller of this invention have the following advantages over the prior art: (1) By setting a rotatable handrail and transmitting the transmission to the support frame through the linkage, the handrail is driven to flip and fold synchronously through the relative rotation of the support frame and the first wheel frame during the folding process. Thus, the folding of the whole vehicle and the handrail can be achieved in one operation without multiple operations. The foldable handrail design saves space and makes it convenient to store. (2) A locking mechanism is provided to lock the push frame and the shaping frame so that they do not rotate relative to each other. When the push frame and the shaping frame are unlocked, the push frame can rotate around the first hinge point, thereby rotating the push frame above the first wheel frame so that the baby faces the user during the push process, in order to adapt to scenarios such as sunshade. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a perspective view of the folding stroller frame of this utility model; Figure 2 This is another perspective view of the folding stroller frame of this utility model; Figure 3 for Figure 2 Enlarged diagram of point A in the diagram; Figure 4 This is a schematic diagram of the hinge point of the folding stroller frame of this utility model; Figure 5 This is a schematic diagram of the locking mechanism of the folding stroller frame of this utility model; Figure 6 This is a schematic diagram of the rotating component of the folding stroller frame of this utility model. Detailed Implementation

[0017] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0018] like Figures 1-6 As shown, the folding stroller frame of this utility model includes a combination frame 1, a first wheel frame 2, a second wheel frame 3, a support frame 4, a handle 5, and a linkage component 6.

[0019] The combination frame 1 is the upper part of the entire frame. It is used to set up the stroller canopy and some other components. The combination frame 1 is tilted so that the user can push it.

[0020] One end of the first wheel frame 2 is hinged to the end of the combined frame 1. The first wheel frame 2 is H-shaped, and the upper part forms an angle with the horizontal plane. The first wheel frame 2 is the front wheel device of the frame, and two universal wheels are set at its bottom. The first wheel frame 2 forms front support for the whole vehicle. The hinge position of the first wheel frame 2 and the combined frame 1 is the first hinge point of the entire frame, which allows the first wheel frame 2 and the combined frame 1 to be folded. It should be noted that since the whole vehicle structure is symmetrical, there are actually two first hinge points, and the same applies to the hinge points involved later.

[0021] The second wheel frame 3 is hinged to the combined frame 1. The second wheel frame 3 is the rear support of the entire frame. Two traveling wheels are provided on the second wheel frame 3, which, together with two swivel wheels, allow the frame to travel on the ground. The top of the second wheel frame 3 is hinged to the end of the combined frame 1 near the first hinge point, forming the second hinge point.

[0022] The two ends of the support frame 4 are hinged to the first wheel frame 2 and the second wheel frame 3 respectively, and a third hinge point is formed at the upper end of the support frame 4 and a fourth hinge point is formed at the lower end. Specifically, the upper end of the support frame 4 is hinged to the end of the first wheel frame 2 near the first hinge point to form the third hinge point, and the lower end is hinged to the end of the second wheel frame 3 near the walking wheel to form the fourth hinge point. This makes the part of the combined frame 1, the part of the first wheel frame 2, the second wheel frame 3 and the support frame 4 combined on the same plane to form a quadrilateral. The four hinge points are the four corners of the quadrilateral. The four hinge points are not completely located on the same plane, but rotate in the same direction.

[0023] When folding, the first and fourth hinge points move away from each other, while the second and third hinge points move closer together, thus folding the entire frame. Conversely, the frame can be unfolded. It should be noted that at the first hinge point, there is a component used to lock the combined frame 1 and the first wheel frame 2. This component prevents the first hinge point from rotating relative to each other, thus changing the force model of the quadrilateral into a triangle, which cannot be changed. Correspondingly, when the lock is released, it becomes a quadrilateral structure, which can be unfolded or folded.

[0024] The armrest 5 is hinged to the end of the first wheel frame 2 near the combined frame 1. The armrest 5 is U-shaped and is an openable or detachable structure. In order to make it more stable in actual use, the armrest 5 is designed to be able to flip down but not up, so as to provide support. The armrest is the part that infants and young children can grab when they are riding.

[0025] The two ends of the linkage 6 are respectively set on the support frame 4 and the handrail 5, and the support frame 4 and the handrail 5 are connected by transmission. The linkage 6 is curved in shape. During the folding process of the whole vehicle, the support frame 4 will pull the linkage 6 downward. The lower end of the linkage 6 moves towards the right side of the first wheel frame 2, while the upper end moves towards the left side of the first wheel frame 2 due to the obstruction of the handrail 5, and correspondingly pulls the handrail 5 towards the left side of the first wheel frame 2 to fold until the whole vehicle is folded. Conversely, during the unfolding process of the whole vehicle, the linkage 6 can also drive the handrail 5 to return to its original position.

[0026] By setting a rotatable handrail 5 and transmitting it to the support frame 4 through the linkage 6, the handrail 5 can be rotated and folded synchronously during the folding process by the relative rotation of the support frame 4 and the first wheel frame 2. Thus, the entire vehicle and the handrail 5 can be folded in one operation without multiple operations. The foldable handrail 5 design also saves space and makes it convenient for storage.

[0027] In some embodiments, a support frame 7 is also provided, which is disposed on the second wheel frame 3 and the support frame 4. The support frame 7 is used to carry the infant and to install a seat or cushion and other structures. The seat may be made of a flexible material so that it can be folded together with the frame.

[0028] Considering that the support frame 7 also needs to cooperate when the frame is folded, the support frame 7 includes a frame 71, a connector 72 and a crossbar 73. One end of the frame 71 is hinged to the second wheel frame 3 and the other end is mounted on the support frame 4. The connector 72 is sleeved on the support frame 4 and can rotate on the support frame 4. The frame 71 passes through the connector 72 and is slidably connected to the connector 72. The crossbar 73 is fixed on the connector 72.

[0029] The frame 71 is shaped like a square, and there are two connecting pieces 72. The two connecting pieces 72 are respectively set on both sides of the frame 71 to support the frame 71 without restricting the relative movement of the frame 71 and the support frame 4, thereby avoiding the frame 71 from affecting the folding action of the frame. The horizontal bar 73, together with the frame 71, forms three longitudinal supports to improve the stability of carrying an infant.

[0030] When folding, the first hinge point and the fourth hinge point move away from each other, the connector 72 will rotate around the third hinge point, and the other end of the frame 71 will rotate toward the second wheel frame 3. During this process, the hinge position of the frame 71 and the second wheel frame 3 moves closer to the connector 72, so that the frame 71 slides through the connector 72 until the folding is completed. Conversely, it can be unfolded.

[0031] In some embodiments, the support frame 4 includes a crossbar 41, which is horizontally arranged and both ends of the crossbar 41 are rotatably mounted on the first wheel frame 2. The crossbar 41 can provide good support for the entire frame. At the same time, two connecting parts 72 are rotatably mounted on the crossbar 41. In addition to supporting the bearing frame 7, the crossbar 41 can also connect the linkage 6, so that the linkage 6 is driven by the support frame 4 to perform actions.

[0032] Specifically, the crossbar 41 is provided with a protrusion 411, which is hinged to one end of the linkage 6. Through the protrusion, the rotation action can be converted into a certain distance movement, thereby driving the lower end of the linkage 6 to move. In this embodiment, the number of linkages 6 is set to two, and the corresponding protrusions 411 are also set to two, and are respectively connected to the two linkages 6.

[0033] In some embodiments, the combined frame 1 includes a shaping frame 11 and a pusher frame 12. The end of the shaping frame 11 is hinged to the first wheel frame 2, and the shaping frame 11 and the first wheel frame 2 are located on the same plane when not folded. The end of the pusher frame 12 is disposed on the shaping frame 11 and is fixed relative to the shaping frame 11. The shaping frame 11 is used to fix the ceiling, and a movable frame is also disposed on the shaping frame 11. The movable frame is used separately for folding and unfolding the ceiling.

[0034] In one embodiment, the combination frame 1 further includes a locking mechanism 13, which is disposed at the connection between the shaping frame 11 and the push frame 12. The locking mechanism 13 is used to lock the shaping frame 11 and the push frame 12. When the push frame 12 is unlocked from the shaping frame 11, the push frame 12 can rotate around the first hinge point, thereby rotating the push frame 12 above the first wheel frame 2, so that the baby faces the user during the push, which is suitable for scenarios such as sunshade.

[0035] Specifically, the end of the shaping frame 11 is provided with a locking groove 111. The locking mechanism 13 includes a locking member 131, a rotating member 132, and a pull rope 133. The locking member 131 is disposed on the push frame 12 and inserted into the locking groove 111. The push frame 12 has space for the locking member 131 to move so that the locking member 131 can leave the locking groove 111. The rotating member 132 is rotatably disposed at the connection between the shaping frame 11 and the push frame 12 and is inserted into the locking member 131. The rotating member 132 is provided with a pushing part, which is used to push the locking member 131 away from the locking groove 111 by rotation. One end of the pull rope 133 is disposed on the rotating member 132 to drive the rotating member 132 to rotate.

[0036] In order to allow the locking member 131 to be reset, a spring is also fitted on the outside of the rotating member 132. The two ends of the spring are connected to the rotating member 132 and the locking member 131 respectively. The locking member 131 adopts a gear-like design so that it can be locked after rotating a certain angle. In addition, the space reserved on the locking groove 111 and the pusher 12 is adapted to the locking member 131.

[0037] The baby stroller of this utility model includes the above-mentioned folding stroller frame, seat and canopy. The seat is set on the support frame 7 and the canopy is set on the combination frame 1.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A folding stroller frame, characterized in that: It includes a combination frame (1), a first wheel frame (2), a second wheel frame (3), a support frame (4), a handrail (5), and a linkage component (6), among which, One end of the first wheel frame (2) is hinged to the end of the combined frame (1); The second wheel frame (3) is hinged to the combined frame (1); The two ends of the support frame (4) are respectively hinged to the first wheel frame (2) and the second wheel frame (3). The part of the combined frame (1), the part of the first wheel frame (2), the second wheel frame (3) and the support frame (4) are combined on the same plane to form a quadrilateral. The handrail (5) is hinged to one end of the first wheel frame (2) near the combined frame (1); The two ends of the linkage (6) are respectively set on the support frame (4) and the handrail (5), and the support frame (4) and the handrail (5) are connected in a transmission manner; The combined frame (1) includes a shaping frame (11) and a push frame (12), wherein, The end of the shaping frame (11) is hinged to the first wheel frame (2), and the shaping frame (11) and the first wheel frame (2) are on the same plane when not folded; The end of the pusher (12) is set on the shaping frame (11) and fixed relative to the shaping frame (11).

2. The folding stroller frame as described in claim 1, characterized in that: It also includes a support frame (7), which is mounted on the second wheel frame (3) and the support frame (4), and the support frame (7) is used to carry the baby.

3. The folding stroller frame as described in claim 2, characterized in that: The support frame (7) includes a frame (71), connectors (72), and crossbars (73), wherein, One end of the frame (71) is hinged to the second wheel frame (3), and the other end is mounted on the support frame (4); The connector (72) is sleeved on the support frame (4) and can rotate on the support frame (4). The frame (71) passes through the connector (72) and is slidably connected to the connector (72). The crossbar (73) is fixed to the connector (72).

4. The folding stroller frame as described in claim 1, characterized in that: The support frame (4) includes a crossbar (41), which is horizontally arranged and both ends of the crossbar (41) are rotatably mounted on the first wheel frame (2).

5. The folding stroller frame as described in claim 4, characterized in that: The crossbar (41) is provided with a protrusion (411), which is hinged to one end of the linkage (6).

6. The folding stroller frame as described in claim 1, characterized in that: The combined frame (1) also includes a locking mechanism (13), which is located at the connection between the shaping frame (11) and the push frame (12) and is used to lock the shaping frame (11) and the push frame (12).

7. The folding stroller frame as described in claim 6, characterized in that: The end of the shaping frame (11) is provided with a locking groove (111), and the locking mechanism (13) includes a locking element (131), a rotating element (132), and a pull rope (133), wherein, The locking element (131) is set on the pusher (12) and inserted into the locking groove (111). The pusher (12) has space for the locking element (131) to move so that the locking element (131) can leave the locking groove (111). The rotating part (132) is rotatably disposed at the connection between the shaping frame (11) and the push frame (12) and inserted into the locking part (131). The rotating part (132) is provided with a pushing part, which is used to push the locking part (131) away from the locking groove (111) by rotating. One end of the pull rope (133) is set on the rotating part (132) to drive the rotating part (132) to rotate.

8. A baby stroller, characterized in that: The folding stroller frame includes any one of claims 1-7.

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