CN109178076B - Folding seat for strollers - Google Patents

Abstract

The present invention discloses a folding seat for a child stroller, which comprises an upper frame, a lower frame and a connecting member connected to each other by a rotating shaft, the folding seat has an open state, a first folding state and a second folding state, a transition guide mechanism is provided between the upper frame and the connecting member to make the folding seat transition from the first folding state to the second folding state by adjusting the relative position between the upper frame and the connecting member, when the folding seat is in the first folding state and the second folding state, the locking mechanism and the limiting mechanism are both unlocked, the upper frame and the lower frame are close to each other, and when the folding seat is in the second folding state, the extension direction of each rod of the folding seat is the same as the extension direction of each rod after the frame is folded. The folding seat for a child stroller of the present invention, after folding, the upper frame and the lower frame close to each other can continue to rotate a certain angle relative to the connecting member, thereby making the entire child stroller flatter and smaller in size after folding.

Description

Folding seat for strollers

Technical Field

The invention relates to a foldable seat pocket for a child stroller.

Background technique

The child stroller includes a foldable and unfoldable frame and a seat pocket installed on the frame. In order to make the whole vehicle smaller after folding, the seat pocket is generally designed to be a foldable structure so that it can be folded together with the frame. The foldable seat pocket in the prior art includes a coaxially connected upper frame, a lower frame and a connecting piece, wherein the connecting piece is used to connect with the frame, and the upper frame and the lower frame rotate with each other to complete the opening and folding of the seat pocket. As shown in Figure 1, due to the limitation of the connection position between the connecting piece and the frame and the limitation of the seat pocket's own structure, after the whole vehicle is folded, the seat pocket is tilted relative to the frame, making the whole vehicle not flat enough after folding, thus resulting in a larger volume of the whole vehicle after folding.

Summary of the invention

In order to solve the above-mentioned problem, an object of the present invention is to provide a folding seat pocket for a child stroller, which can make the child stroller flatter and smaller in size after being folded.

In order to achieve the above purpose, the technical scheme adopted by the present invention is: a folding seat for a child stroller, which includes an upper frame, a lower frame and a connecting member connected to rotate with the same axis through a rotating shaft, the connecting member is connected to the frame of the child stroller, the frame can be folded and opened, a locking mechanism is provided between the upper frame and the lower frame to lock the two in a relative open position, and a limiting mechanism is provided between the upper frame and the connecting member to limit the relative position between the two. The folding seat has an open state, a first folding state and a second folding state, a transition guide mechanism is provided between the upper frame and the connecting member to make the folding seat transition from the first folding state to the second folding state by adjusting the relative position between the upper frame and the connecting member, when the folding seat is in the open state, the locking mechanism and the limiting mechanism are both locked, and the upper frame and the lower frame are in a relative open position; when the folding seat is in the first folding state and the second folding state, the locking mechanism and the limiting mechanism are both unlocked, the upper frame and the lower frame are close to each other, and when the folding seat is in the second folding state, the extension direction of each rod of the folding seat is the same as the extension direction of each rod after the frame is folded.

Furthermore, the transition guide mechanism includes a protrusion arranged on the upper frame, a guide groove arranged on the connecting member, and a limit block that can rotate around the rotating axis and slide along the guide groove. When the folding seat pocket is in the first folding state, the limit block is located at one end of the guide groove, and the protrusion contacts one side of the limit block. When the folding seat pocket transitions from the first folding state to the second folding state, the protrusion presses against one side of the limit block and pushes the limit block to rotate around the rotating axis so that the limit block slides to the other end of the guide groove.

Furthermore, the guide groove is arc-shaped, and the center of the arc is located on the axis line of the rotating shaft.

Furthermore, when the folding seat pocket is in the open state, the limit block is located at one end of the guide groove, and the protrusion is located on the other side of the limit block opposite to the one side thereof; during the transition of the folding seat pocket from the open state to the first folded state, the protrusion rotates around the rotating axis from the other side of the limit block to one side of the limit block.

Furthermore, during the transition of the folding seat pocket from the open state to the first folding state, the rotation angle of the protrusion around the rotating axis is greater than 180° and less than 360°; during the transition of the folding seat pocket from the open state to the second folding state, the rotation angle of the protrusion around the rotating axis is greater than or equal to 360°.

Furthermore, the limiting mechanism includes a slot arranged on the connecting member, and the protrusion is detachably connected to the slot. When the limiting mechanism is locked, the protrusion is connected to the slot, and when the limiting mechanism is unlocked, the protrusion is detached from the slot.

Furthermore, there are multiple card slots, which are distributed around the rotation axis.

Furthermore, an unlocking handle is provided on the upper surrounding frame, and when operated, the locking mechanism and the limiting mechanism can be unlocked simultaneously.

Furthermore, the upper surrounding frame is connected with a locking tongue which can move axially along the rotating shaft, and a protrusion is arranged on the locking tongue. When the unlocking handle is operated, the locking tongue moves to make the protrusion disengage from the slot.

Furthermore, the locking tongue can move along the axial direction of the rotating shaft and is rotatably connected to the rotating shaft.

Furthermore, the unlocking handle is connected to the locking tongue via a traction mechanism.

Due to the adoption of the above technical solution, the folding seat pocket for a child stroller of the present invention can further rotate a certain angle relative to the connecting member after folding the upper and lower surrounding frames that are close to each other, so that the extension direction of the entire seat pocket is the same as the extension direction of the frame after folding, thereby making the entire child stroller flatter and smaller in size after folding. The folding seat pocket for a child stroller of the present invention has a simple structure, a sophisticated design, and is easy to operate.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the structure of a foldable seat and a frame of a child stroller in the background art after being folded together;

FIG2 is a schematic structural diagram of the foldable seat pocket for a child stroller of the present invention in an open state;

3 is a first structural schematic diagram of the transition guide mechanism and the limit mechanism when the foldable seat pocket for a child stroller of the present invention is in an open state;

FIG4 is a second structural schematic diagram of the transition guide mechanism and the limit mechanism when the folding seat pocket for a child stroller of the present invention is in an open state (wherein the lock tongue is omitted in order to make the structural expression clearer);

FIG5 is a schematic structural diagram of a transition guide mechanism and a limit mechanism of the folding seat pocket for a child stroller of the present invention when the folding seat pocket is in a first folded state;

FIG6 is a schematic structural diagram of a transition guide mechanism and a limit mechanism of the folding seat pocket for a child stroller of the present invention when the folding seat pocket is in the second folding state;

FIG. 7 is a schematic structural diagram of the folding seat pocket and the frame of the child stroller of the present invention when they are opened together;

FIG8 is a schematic diagram of the structure of the foldable seat pocket and the frame of the child stroller of the present invention after being folded together.

The numbers in the figure are:

10. Folding seat pocket; 20. Frame;

11. Upper frame; 12. Lower frame; 13. Connector; 14. Bump; 15. Guide groove; 16. Limit block; 17. Slot; 18. Lock tongue; 19. Rotating shaft; 101. Unlocking handle.

Detailed ways

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

As can be seen from the structural schematic diagrams of Figures 2 to 8, the folding seat for a child stroller in this embodiment includes an upper frame 11, a lower frame 12 and a connecting member 13 that are connected to rotate coaxially through a rotating shaft 19, and the connecting member 13 is connected to the frame 20 of the child stroller. The frame 20 can be folded and opened. The accompanying drawings provide a specific structure of the frame 20, but it is not limited to this structure in practical applications. A locking mechanism is provided between the upper frame 11 and the lower frame 12 to lock the two in a relative open position. Since the locking mechanism is not the invention point of this application, it is not described in detail here, and the structure in the prior art can be adopted. A limiting mechanism is provided between the upper frame 11 and the connecting member 13 to limit the relative position between the two. The limiting mechanism can be locked together with the locking mechanism to keep the entire folding seat in an open state, and can also be used to adjust the relative position between the upper frame 11 and the connecting member 13, thereby adjusting the opening angle of the folding seat to make the child sit more comfortable.

The upper frame 11 and the lower frame 12 in this embodiment are both U-shaped, with the left and right ends respectively rotatably connected to each other. There are two connecting members 13, which are respectively arranged on the left and right sides of the folding seat pocket and connected to the left and right ends of the upper frame 11 and the lower frame 12.

The folding seat pocket has an open state, a first folding state and a second folding state. A transition guide mechanism is provided between the upper frame 11 and the connecting member 13, which can transition the folding seat pocket from the first folding state to the second folding state by adjusting the relative position between the upper frame 11 and the connecting member 13. When the folding seat pocket is in the open state, the locking mechanism and the limiting mechanism are both locked, and the upper frame 11 and the lower frame 12 are in a relatively open position; when the folding seat pocket is in the first folding state and the second folding state, the locking mechanism and the limiting mechanism are both unlocked, and the upper frame 11 and the lower frame 12 are close to each other, and when the folding seat pocket is in the second folding state, the extension direction of each rod of the folding seat pocket is the same as the extension direction of each rod after the frame 20 is folded.

As shown in Figures 3 and 4, the transition guide mechanism includes a protrusion 14 provided on the upper frame 11, a guide groove 15 provided on the connecting member 13, and a stopper 16 capable of rotating around the rotating shaft 19 and sliding along the guide groove 15. Specifically, the guide groove 15 is arc-shaped, and the center of the arc is on the axis of the rotating shaft 19. When the folding seat pocket is in the first folding state, as shown in Figure 5, the stopper 16 is located at one end of the guide groove 15, and the protrusion 14 contacts one side of the stopper 16; when the folding seat pocket transitions from the first folding state to the second folding state, the protrusion 14 abuts against one side of the stopper 16 and pushes the stopper 16 to rotate around the rotating shaft 19 so that the stopper 16 slides to the other end of the guide groove 15, as shown in Figure 6. More preferably, when the folding seat pocket is in the open state, the limit block 16 is located at one end of the guide groove 15, and the protrusion 14 is located on the other side of the limit block 16 opposite to the one side thereof; during the transition of the folding seat pocket from the open state to the first folded state, the protrusion 14 rotates from the other side of the limit block 16 around the rotating shaft 19 to one side of the limit block 16.

During the transition of the folding seat pocket from the open state to the first folding state, the rotation angle of the protrusion 14 around the rotating shaft 19 is greater than 180° and less than 360°; during the transition of the folding seat pocket from the open state to the second folding state, the rotation angle of the protrusion 14 around the rotating shaft 19 is greater than or equal to 360°.

The limiting mechanism in this embodiment includes a slot 17 provided on the connecting member 13, and the above-mentioned projection 14 is detachably connected to the slot 17. When the limiting mechanism is locked, the projection 14 is connected to the slot 17, and when the limiting mechanism is unlocked, the projection 14 is detached from the slot 17. Preferably, there are multiple slots 17, which are distributed around the rotating shaft 19. By connecting the projection 14 with different slots 17, the relative position between the upper frame 11 and the connecting member 13 is adjusted, thereby adjusting the opening angle of the folding seat pocket.

In this embodiment, an unlocking handle 101 is provided on the upper frame 11, and the locking mechanism and the limiting mechanism can be unlocked at the same time by operating the unlocking handle 101. Specifically, the upper frame 11 is connected with a locking tongue 18, and the locking tongue 18 is rotatably connected to the rotating shaft 19 and can move along the axial direction of the rotating shaft 19. The protrusion 14 is provided on the locking tongue 18, and the unlocking handle 101 is connected to the locking tongue 18 through a traction mechanism. When the unlocking handle 101 is operated, the locking tongue 18 moves to make the protrusion 14 disengage from the card slot 17.

Preferably, the protrusion 14 , the guide groove 15 , the limit block 16 , the locking groove 17 and the locking tongue 18 are all arranged inside the connecting member 13 .

working principle:

When the stroller is opened, the frame 20 and the folding seat pocket 10 are both opened, as shown in FIG7 , the locking mechanism and the limiting mechanism are both locked, and the folding seat pocket 10 is locked in the opened state. At this time, the limiting mechanism can be unlocked by operating the handle 101, and the relative position between the upper frame 11 and the connecting member 13 can be adjusted by adjusting the protrusion 14 to connect with different slots 17, so as to adjust the opening angle of the folding seat pocket; when the stroller is folded, the locking mechanism and the limiting mechanism can be unlocked by operating the handle 101 at the same time, and the locking tongue 18 moves along the rotating shaft 19 to make the protrusion 14 disengage from the slot 17, and the protrusion 14 is located on the other side of the limiting block 16 mentioned above, and the upper frame 11 is rotated to make the upper frame 11 and the lower frame 12 approach each other. After the upper frame 11 and the lower frame 12 approach each other, they continue to rotate to the state shown in FIG1 , at this time The folding seat pocket 10 is in the first folding state, as shown in FIG5. Compared with the open state, after the upper frame 11 rotates one circle, it reaches the above-mentioned side of the limit block 16 and contacts with one side of the limit block 16. There is a certain angle between the extension direction of the folding seat pocket 10 in the first folding state and the extension direction of the frame 20 after folding; continue to rotate the upper frame 11 and the lower frame 12, as shown in FIG6, the locking tongue 18 and the protrusion 14 rotate together with the upper frame 11, the protrusion 14 abuts against the limit block 16, and pushes the limit block 16 to slide along the guide groove 15, so that the upper frame 11 and the lower frame 12 can continue to rotate a certain angle relative to the connecting member 13 until the folding seat pocket 10 is converted to the second folding state. At this time, the extension direction of the folding seat pocket 10 is the same as the extension direction of the frame 20 after folding, as shown in FIG6.

The folding seat pocket for a child stroller of the present invention can further rotate a certain angle relative to the connecting member after folding, so that the extension direction of the entire folding seat pocket 10 is the same as the extension direction of the frame 20 after folding, thereby making the entire child stroller flatter and smaller in size after folding. The folding seat pocket for a child stroller of the present invention has a simple structure, a sophisticated design, and is easy to operate.

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 folding seat pocket for children's shallow, it includes and encloses frame (11), lower enclosing frame (12) and connecting piece (13) on rotating the connection through the same axle of pivot (19), connecting piece (13) with frame (20) of children's shallow are connected, frame (20) can fold and open, go up and enclose and be provided with the locking mechanical system of locking the two in relative open position between frame (11) and lower enclosing frame (12), go up and be provided with the stop gear who restricts the relative position between the two between enclosing frame (11) and connecting piece (13), its characterized in that: the folding seat pocket is provided with an opening state, a first folding state and a second folding state, a transition guide mechanism for enabling the folding seat pocket to transition from the first folding state to the second folding state by adjusting the relative position between the upper surrounding frame (11) and the connecting piece (13) is arranged between the upper surrounding frame (11) and the connecting piece (13), and when the folding seat pocket is in the opening state, the locking mechanism and the limiting mechanism are locked, and the upper surrounding frame (11) and the lower surrounding frame (12) are in relative opening positions; when the folding seat pocket is in a first folding state and a second folding state, the locking mechanism and the limiting mechanism are unlocked, the upper enclosing frame (11) and the lower enclosing frame (12) are mutually close, and when the folding seat pocket is in the second folding state, the extending direction of each rod piece of the folding seat pocket is the same as the extending direction of each rod piece of the frame (20) after folding, wherein the transition guiding mechanism comprises a protruding block (14) arranged on the upper enclosing frame (11), a guiding groove (15) arranged on the connecting piece (13) and a limiting block (16) capable of rotating around the rotating shaft (19) and sliding along the guiding groove (15), when the folding seat pocket is in the first folding state, the limiting block (16) is located at one end of the guiding groove (15), the protruding block (14) is in contact with one side of the limiting block (16), and when the folding seat pocket is transited from the first folding state to the second folding state, the protruding block (14) abuts against one side of the limiting block (16) and pushes the other end of the limiting block (16) to enable the other end of the limiting block (16) to slide around the guiding groove (16).

2. The folding seat pocket for a stroller of claim 1, wherein: the guide groove (15) is arc-shaped, and the center of the arc is positioned on the axis of the rotating shaft (19).

3. The folding seat pocket for a stroller of claim 1, wherein: when the folding seat pocket is in an open state, the limiting block (16) is positioned at one end of the guide groove (15), and the protruding block (14) is positioned at the other side of the limiting block (16) opposite to the one side of the limiting block; in the transition process of the folding seat pocket from the opening state to the first folding state, the protruding block (14) rotates from the other side of the limiting block (16) to one side of the limiting block (16) around the rotating shaft (19).

4. The folding seat pocket for a stroller of claim 1, wherein: in the process of transition of the folding seat pocket from the open state to the first folding state, the rotation angle of the lug (14) around the rotating shaft (19) is more than 180 degrees and less than 360 degrees; in the transition process of the folding seat pocket from the open state to the second folding state, the rotation angle of the lug (14) around the rotating shaft (19) is more than or equal to 360 degrees.

5. The folding seat pocket for a stroller of claim 1, wherein: the limiting mechanism comprises a clamping groove (17) arranged on the connecting piece (13), the protruding block (14) is detachably connected with the clamping groove (17), when the limiting mechanism is locked, the protruding block (14) is connected with the clamping groove (17), and when the limiting mechanism is unlocked, the protruding block (14) is separated from the clamping groove (17).

6. The folding seat pocket for a stroller of claim 5, wherein: the clamping grooves (17) are distributed around the rotating shaft (19).

7. The folding seat pocket for a stroller of claim 5, wherein: the upper surrounding frame (11) is provided with an unlocking handle (101) which can be operated to unlock the locking mechanism and the limiting mechanism simultaneously.

8. The folding seat pocket for a stroller of claim 7, wherein: the upper surrounding frame (11) is connected with a lock tongue (18) capable of moving along the axial direction of the rotating shaft (19), the protruding block (14) is arranged on the lock tongue (18), and when the unlocking handle (101) is operated, the lock tongue (18) moves to enable the protruding block (14) to be separated from the clamping groove (17).

9. The folding seat pocket for a stroller of claim 7, wherein: the unlocking handle (101) is connected with the lock tongue (18) through a traction mechanism.