Child seat capable of being unlocked by linked frame and child car
[ Field of technology ]
The invention relates to the technical field of children's vehicles, in particular to a child seat capable of being unlocked by a linkage frame and a child's vehicle.
[ Background Art ]
Children's carriages have become an indispensable product in the growth of infants. Many of the children's vehicles on the market today include a collapsible child vehicle frame and a collapsible child seat attached to the child vehicle frame.
For the collapsible child seats known to date, the folding is disadvantageously very complex. In particular, a plurality of manual operations are required to fold the child seat in order to change the child seat from the unfolded state (use state) into the folded state (non-use state), which results in the plurality of manual operations for folding often being difficult to remember, not intuitively implemented, and mechanically complex to implement.
In addition, when the child car at the present stage is folded, the backrest unlocking mechanism is required to be manually operated firstly to release the locking state of the backrest relative to the seat part, however, the backrest is operated to rotate towards the seat part side to fold the child seat, then the whole child seat is operated to rotate towards the child car frame side to fold, then the car frame unlocking mechanism is manually operated to release the locking state of the child car frame, and then the child car frame is operated to fold, so that the problems of more operation steps and inconvenience in folding exist.
The present invention has been made in view of the above problems.
[ Invention ]
The invention aims to overcome the defects of the prior art and provide the child seat and the child car capable of being unlocked by the linkage frame, the backrest part is folded forwards to a preset angle relative to the seat part by operation, so that the linkage control mechanism is used for unlocking the linkage frame joint assembly, and the linkage control mechanism still keeps locking the seat part relative to the external connecting seat when the frame joint assembly is unlocked, so that the child seat and the child car have the characteristics of convenience in operation, safety and reliability.
The invention is realized by the following technical scheme:
A child seat 2 capable of being unlocked through a linked frame comprises a seat part 21, a backrest part 22, a backrest locking mechanism 3, an external connecting seat 23 and a linkage control mechanism 4, wherein the lower end of the backrest part 22 is rotatably connected to the rear side of the seat part 21, the backrest locking mechanism 3 is arranged between the backrest part 22 and the seat part 21 and used for locking the backrest part 22 relative to the seat part 21, the external connecting seat 23 is rotatably connected to the outer side of the seat part 21, the seat part 21 is connected with a frame joint assembly 14 through the external connecting seat 23, the seat part 21 is lockable relative to the external connecting seat 23 through the linkage control mechanism 4, and the linkage control mechanism 4 is configured to enable the linkage control mechanism 4 to be locked through the linkage control mechanism 4 when the backrest part 22 is folded forwards to a preset angle relative to the seat part 21, and the linkage control mechanism 4 still keeps locking the seat part 21 relative to the external connecting seat 23 when the frame joint assembly 14 is unlocked.
The child seat 2 with the interlocking frame unlocked as described above, the seat part 21 comprises a seat connecting seat 211 for rotatably connecting with the external connecting seat 23, the backrest part 22 comprises a backrest connecting seat 221 for rotatably connecting with the seat connecting seat 211, and the interlocking control mechanism 4 is positioned among the seat connecting seat 211, the backrest connecting seat 221 and the external connecting seat 23.
The child seat 2 with the openable linkage frame comprises a seat locking hole 41 formed in a seat connecting seat 211 and a linkage control member 42 movably formed in an outer connecting seat 23, wherein the upper end of the linkage control member 42 is configured to penetrate through the seat locking hole 41 and be matched with a backrest connecting seat 221 when the seat 21 is in a unfolded use state, the lower end of the linkage control member 42 is configured to be used for unlocking the linkage frame joint assembly 14, a linkage control elastic member 43 capable of enabling the upper end of the linkage control member 42 to be inserted into the seat locking hole 41 is arranged between the linkage control member 42 and the outer connecting seat 23, and the linkage control mechanism 4 further comprises a linkage control driving part 44 which is arranged on the backrest connecting seat 221 and is used for being in abutting fit with the upper end of the linkage control member 42 when the backrest 22 is folded forwards to a preset angle relative to the seat 21 so as to drive the lower end of the linkage control member 42 to unlock the linkage frame joint assembly 14.
The child seat 2 capable of unlocking the linked frame as described above further comprises a armrest portion 24 rotatably connected to the seat portion 21 and located on the front side of the backrest portion 22, and an armrest locking mechanism 25 for locking the armrest portion 24 relative to the seat portion 21 is provided between the armrest portion 24 and the seat portion 21.
The child seat 2 with the interlocking frame unlocked as described above, wherein the armrest locking mechanism 25 is configured to be interlocked and unlocked by the backrest 22 when the backrest 22 is folded forward to a preset angle relative to the seat 21.
The child seat 2 capable of being unlocked by the interlocking frame, as described above, the seat part 21 comprises a seat connecting seat 211 for being rotatably connected with the external connecting seat 23, the backrest part 22 comprises a backrest connecting seat 221 for being rotatably connected with the seat connecting seat 211, the armrest part 24 comprises an armrest connecting seat 241 for being rotatably connected with the seat connecting seat 211, the armrest locking mechanism 25 comprises an armrest locking notch 251 arranged on the armrest connecting seat 241 and an armrest locking block 252 slidably arranged on the seat connecting seat 211 and capable of being locked in the armrest locking notch 251, an armrest locking elastic piece 253 for enabling the armrest locking block 252 to be elastically locked in the armrest locking notch 251 is arranged between the armrest locking block 252 and the seat connecting seat 211, and the armrest locking block 252 is configured to be unlocked by the backrest part 22 in an interlocking manner when the backrest part 22 is folded forwards to a preset angle relative to the seat part 21.
As described above, in the child seat 2 capable of unlocking the linked frame, the backrest connecting base 221 is provided with the armrest unlocking driving part 254 for driving the armrest locking block 252 to withdraw from the armrest locking notch 251 when the backrest 22 is folded forward to a predetermined angle relative to the seat 21.
The child seat 2 capable of being unlocked by the linked frame comprises a seat connecting seat 211 rotatably connected with an external connecting seat 23, a backrest 22 comprises a backrest connecting seat 221 rotatably connected with the seat connecting seat 211, the backrest locking mechanism 3 comprises a backrest locking notch 31 arranged on the seat connecting seat 211 and a backrest locking block 32 slidably arranged on the backrest connecting seat 221 and capable of being locked in the backrest locking notch 31, and a backrest locking elastic piece capable of enabling the backrest locking block 32 to be elastically locked in the backrest locking notch 31 is arranged between the backrest locking block 32 and the backrest connecting seat 221.
The child seat 2 capable of being unlocked by the linkage frame is characterized in that the backrest part 22 is provided with a backrest unlocking piece 33 for being in linkage with the backrest locking block 32 to exit the backrest locking notch 31, and the backrest unlocking piece 33 is connected with the backrest locking block 32 through a connecting belt.
The invention also provides a baby carrier, which comprises a frame body 1, wherein the frame body 1 comprises a front foot rod 11, a rear foot rod 12 and a push rod 13, the front foot rod 11, the rear foot rod 12 and the push rod 13 are rotatably connected through a frame joint assembly 14, the baby carrier 2 comprises a seat part 21, a backrest part 22 and an external connecting seat 23, the lower end of the backrest part 22 is rotatably connected to the rear side of the seat part 21, a backrest locking mechanism 3 for locking the backrest part 22 relative to the seat part 21 is arranged between the backrest part 22 and the seat part 21, the external connecting seat 23 is rotatably connected to the outer side of the seat part 21, the seat part 21 is connected with the frame joint assembly 14 through the external connecting seat 23, the seat part 21 is locked relative to the external connecting seat 23 through the linkage control mechanism 4, the linkage control mechanism 4 is configured to unlock the frame joint assembly 14 when the backrest part 22 is folded forwards to a preset angle relative to the seat part 21, and the linkage control mechanism 4 keeps the linkage control mechanism 23 locked relative to the external connecting seat 23 when the frame joint assembly 14 is unlocked.
In the child car as described above, the linkage control mechanism 4 is configured such that the frame joint assembly 14 drives the linkage control mechanism 4 to release the locking state of the seat portion 21 relative to the external connection seat 23 when the frame body 1 is pivoted to be folded to a predetermined angle.
The baby carrier 4 is further configured such that the frame joint assembly 14 drives the linkage control mechanism 4 to release the locking state of the seat portion 21 relative to the external connecting seat 23 when the push rod 13 is turned down to a preset angle.
In the child car as described above, the frame rotation elastic member 146 is provided between the push rod 13 and the rear foot bar 12 to enable the push rod 13 to rotate relative to the rear foot bar 12.
The baby carrier comprises a rear joint seat 142 arranged at the upper end of a rear foot rod 12, a front joint seat 141 arranged at the upper end of a front foot rod 11 and used for being rotatably connected with the rear joint seat 142, and a handle joint seat 143 arranged at the lower end of a push rod 13 and used for being rotatably connected with the rear joint seat 142, wherein a linkage piece 144 used for enabling the front joint seat 141 and the handle joint seat 143 to simultaneously rotate towards or away from each other is arranged between the front joint seat 141 and the handle joint seat 143, and the frame joint assembly 14 further comprises a frame locking mechanism 145 used for locking the front joint seat 141 and/or the handle joint seat 143 relative to the rear joint seat 142, and the frame locking mechanism 145 is configured to be unlocked in a linkage way by the linkage control mechanism 4.
The baby carrier is characterized in that the front joint seat 141 and the rear joint seat 142 are hinged at the point A, the handle joint seat 143 and the rear joint seat 142 are hinged at the point B, the front end of the linkage piece 144 is eccentrically hinged with the front joint seat 141 at the point C, the rear end of the linkage piece 144 is eccentrically hinged with the handle joint seat 143 at the point D, and a connecting line of the two points C, D and the connecting line of the two points A, B form an included angle.
In the child car as described above, the frame rotation elastic member 146 is provided between the handle joint base 143 and the rear joint base 142, and the frame rotation elastic member is capable of rotating the handle joint base 143 with respect to the rear joint base 142.
As described above, the frame locking mechanism 145 includes the frame locking notch 1451 provided in the handle joint seat 143 and/or the front joint seat 141, and the frame locking block 1452 slidably provided in the rear joint seat 142 and capable of being locked into the frame locking notch 1451 to lock the front joint seat 141 and the handle joint seat 143 in the unfolded state with respect to the rear joint seat 142, the frame locking block 1452 and the rear joint seat 142 being provided with the frame locking elastic member 1453 therebetween to allow the frame locking block 1452 to be kept elastically locked into the frame locking notch 1451, and the frame locking block 1452 is configured to be interlocked and unlocked by the interlocking control mechanism 4.
The baby carrier is characterized in that the frame main body 1 is also independently provided with a frame unlocking mechanism 5 for unlocking the frame joint assembly 14, the frame unlocking mechanism 5 comprises a frame unlocking member 51 which is slidably arranged in the rear joint seat 142 and is relatively fixedly connected with the frame locking block 1452, the operating end of the frame unlocking member 51 is exposed out of the rear joint seat 142, a frame unlocking elastic member 52 is arranged between the frame unlocking member 51 and the rear joint seat 142, and the frame unlocking member 51 is configured to be capable of being unlocked in a linkage way by the linkage control mechanism 4.
In the child car as described above, the frame body 1 is also independently provided with a frame unlocking mechanism 5 for unlocking the frame joint assembly 14.
The baby carrier is characterized in that the external connecting seat 23 is detachably connected with the frame joint assembly 14, and an external locking and unlocking mechanism 6 for locking the external connecting seat 23 relative to the frame joint assembly 14 and releasing the locking state of the external connecting seat 23 relative to the frame joint assembly 14 is arranged between the external connecting seat 23 and the frame joint assembly 14.
The baby carrier comprises a rear joint seat 142 arranged at the upper end of a rear foot rod 12, a front joint seat 141 arranged at the upper end of a front foot rod 11 and used for being rotatably connected with the rear joint seat 142, and a handle joint seat 143 arranged at the lower end of a push rod 13 and used for being rotatably connected with the rear joint seat 142, wherein the external locking and unlocking mechanism 6 comprises an external locking notch 61 arranged on the rear joint seat 142 and an external locking block 62 slidably arranged on an external connecting seat 23 and capable of being clamped into the external locking notch 61, an external locking elastic piece 63 capable of enabling the external locking block 62 to be elastically clamped into the external locking notch 61 is arranged between the external locking block 62 and the external connecting seat 23, the external locking and unlocking mechanism 6 further comprises an external unlocking piece 64 slidably arranged on the external connecting seat 23, and an external unlocking driving part 641 used for driving the external locking block 62 to be withdrawn from the external locking notch 61 when the external unlocking piece 64 slides relative to the external connecting seat 23.
Compared with the prior art, the invention has the following advantages:
1. When the child seat is folded, the backrest part can be folded forwards relative to the seat part only by manually releasing the locking state of the backrest locking mechanism on the backrest part until the backrest part is close to the seat part, so that the child seat is folded by releasing the locking of the backrest part only by one manual operation, the risk of injury, especially the risk of injury caused by clamping hands of a user, is reduced, and meanwhile, the child seat has the characteristics of convenience in operation, convenience in use, safety and reliability. In addition, the movement for folding the child seat is intuitive, thereby facilitating a user who is not familiar with the child seat to be able to fold the child seat quickly.
2. When the child seat is connected to the frame main body for folding, the locking state of the backrest locking mechanism on the backrest part is only needed to be manually released, the backrest part is operated to be folded forwards to a preset angle relative to the seat part so that the linkage control mechanism is linked with the frame joint assembly for unlocking, then the frame main body is rotated and folded to the preset angle so that the frame joint assembly drives the linkage control mechanism to release the locking state of the seat part relative to the external connecting seat, and at the moment, the backrest part and the seat part are rotated and folded towards one side of the front foot rod, so that the whole folding work of the child car is completed. In addition, the movement for folding the child car is intuitive, thereby facilitating the user who is not familiar with the child car to be able to fold the child car quickly.
3. For convenient folding, the armrest locking mechanism is configured to be unlocked by the backrest portion in a linkage manner when the backrest portion is folded forward to a preset angle relative to the seat portion.
4. The frame rotating elastic piece is arranged between the push rod and the rear foot rod, the frame rotating elastic piece enables the push rod to rotate relative to the rear foot rod, and after the linkage control mechanism is linked with the frame joint assembly to unlock, the frame rotating elastic piece can provide a rotating reset force for the push rod to rotate towards the rear foot rod direction, so that the frame joint assembly is convenient for driving the linkage control mechanism to release the locking state of the seat part relative to the external connecting seat.
5. The front joint seat and the handle joint seat are provided with the linkage piece which is used for enabling the front joint seat and the handle joint seat to rotate oppositely or back to back at the same time.
[ Description of the drawings ]
The invention is described in further detail below with reference to the attached drawing figures, wherein:
Fig. 1 is a perspective view of a child car of the present invention in an unfolded state.
FIG. 2 is a second perspective view of the child car of the present invention in an unfolded state.
Fig. 3 is a side view of the child car of the present invention in an expanded state.
Fig. 4 is a side view of the child car of the present invention during folding.
Fig. 5 is a side view of the child car of the present invention in a collapsed condition.
Fig. 6 is a perspective view of the child car of the present invention in a collapsed state.
FIG. 7 is a cross-sectional view of the external connection base of the present invention as attached to a frame joint assembly.
Fig. 8 is a perspective view of the child seat of the present invention in an unfolded state.
Fig. 9 is a partial cross-sectional view of a child seat in accordance with the present invention.
Fig. 10 is an exploded view of the child seat of the present invention.
Fig. 11 is a perspective view of a backrest connecting base in the present invention.
Fig. 12 is a second perspective view of the backrest connecting base of the present invention.
Fig. 13 is a cross-sectional view of the safety locking mechanism of the present invention.
Fig. 14 is an exploded view of the safety locking mechanism of the present invention.
Fig. 15 is a perspective view of the frame body in the unfolded state in the present invention.
FIG. 16 is a schematic view of a portion of a frame joint assembly according to the present invention.
Fig. 17 is an exploded view of a frame body in the present invention.
Fig. 18 is a schematic view showing the position of the frame locking mechanism in the locked state in the present invention.
Fig. 19 is a schematic view showing a position structure of the frame locking mechanism in the unlocked state in the present invention.
A frame body 1. A forefoot lever 11. A rear foot bar 12. A push rod 13. The frame joint assembly 14, the front joint seat 141, the rear joint seat 142, the handle joint seat 143, the linkage 144, the frame locking mechanism 145, and the frame rotation elastic member 146. A frame locking notch 1451, a frame locking block 1452, a frame locking ramp 14521, and a frame locking spring 1453. A child seat 2. A seat portion 21, a seat connecting seat 211. A backrest 22, a backrest connecting seat 221. An external connection socket 23. The armrest portion 24, the armrest connection base 241, and the armrest blocking block 2411. The armrest locking mechanism 25, the armrest locking notch 251, the armrest locking block 252, the armrest locking elastic member 253, and the armrest unlocking driving portion 254. The backrest locking mechanism 3, the backrest locking notch 31, the backrest locking block 32, the backrest unlocking member 33, and the backrest sliding block 331. Safety locking mechanism 34, safety blocking piece 341, safety avoiding notch 3411, safety resetting elastic piece 342. The interlocking control mechanism 4, the seat locking hole 41, the interlocking control member 42, the interlocking control elastic member 43, and the interlocking control driving part 44. The frame unlocking mechanism 5, the frame unlocking piece 51, and the frame unlocking elastic piece 52. The external lock unlocking mechanism 6, the external lock notch 61, the external lock block 62, the external lock elastic member 63, the external unlocking member 64, and the external unlock driving section 641. The connecting linkage structure 7, the connecting linkage clamping part 71, the connecting clamping block 72 and the locking elastic piece 73.
[ Detailed description ] of the invention
Embodiments of the present invention are described in detail below with reference to fig. 1-19.
As shown in fig. 1-14, the child seat 2 capable of unlocking the linked frame comprises a seat part 21, a backrest part 22, a backrest locking mechanism 3, an external connecting seat 23 and a linkage control mechanism 4, wherein the backrest part 22 is rotatably connected to the rear side of the seat part 21 at the lower end, the backrest locking mechanism 3 is arranged between the backrest part 22 and the seat part 21 and used for locking the backrest part 22 relative to the seat part 21, the external connecting seat 23 is rotatably connected to the outer side of the seat part 21, the seat part 21 is connected with the frame joint assembly 14 through the external connecting seat 23, the seat part 21 is lockable relative to the external connecting seat 23 through the linkage control mechanism 4, and the linkage control mechanism 4 is configured to enable the linkage control mechanism 4 to link the frame joint assembly 14 to unlock when the backrest part 22 is folded forwards to a preset angle relative to the seat part 21, and the linkage control mechanism 4 still keeps locking the seat part 21 relative to the external connecting seat 23 when the frame joint assembly 14 is unlocked. When the child seat is folded, the backrest part can be folded forwards relative to the seat part only by manually releasing the locking state of the backrest locking mechanism on the backrest part until the backrest part is close to the seat part, so that the child seat is folded by releasing the locking of the backrest part only by one manual operation, the risk of injury, especially the risk of injury caused by clamping hands of a user, is reduced, and meanwhile, the child seat has the characteristics of convenience in operation, convenience in use, safety and reliability. In addition, the movement for folding the child seat is intuitive, thereby facilitating a user who is not familiar with the child seat to be able to fold the child seat quickly.
As shown in fig. 7, 9 and 10, the seat part 21 includes a seat connecting seat 211 rotatably connected to the external connecting seat 23, the backrest part 22 includes a backrest connecting seat 221 rotatably connected to the seat connecting seat 211, and the linkage control mechanism 4 is disposed among the seat connecting seat 211, the backrest connecting seat 221 and the external connecting seat 23.
As shown in fig. 7, 9-12, the linkage control mechanism 4 comprises a seat locking hole 41 formed in the seat connecting seat 211 and a linkage control member 42 movably formed in the outer connecting seat 23, wherein the upper end of the linkage control member 42 is configured to penetrate through the seat locking hole 41 and be matched with the backrest connecting seat 221 when the seat 21 is in a unfolded use state, the lower end of the linkage control member 42 is configured to be used for unlocking the linkage frame joint assembly 14, a linkage control elastic member 43 capable of enabling the upper end of the linkage control member 42 to be inserted into the seat locking hole 41 is arranged between the linkage control member 42 and the outer connecting seat 23, and the linkage control mechanism 4 further comprises a linkage control driving part 44 which is arranged on the backrest connecting seat 221 and is used for being in abutting fit with the upper end of the linkage control member 42 when the backrest 22 is folded forwards to a preset angle relative to the seat 21 so as to drive the lower end of the linkage control member 42 to unlock the linkage frame joint assembly 14. When the backrest portion is folded forward to a preset angle relative to the seat portion, the linkage control driving portion 44 is in abutting engagement with the upper end of the linkage control member 42 to drive the linkage control member 42 to slide downward relative to the external connection seat 23, so that the lower end of the linkage control member 42 is unlocked by the linkage frame joint assembly 14.
As shown in fig. 9 and 10, the armrest assembly further includes an armrest portion 24 rotatably connected to the seat portion 21 and positioned on the front side of the backrest portion 22, and an armrest lock mechanism 25 for locking the armrest portion 24 relative to the seat portion 21 is provided between the armrest portion 24 and the seat portion 21.
For more convenient folding, the armrest locking mechanism 25 is configured to be interlocked and unlocked by the backrest 22 when the backrest 22 is folded forward to a predetermined angle relative to the seat 21.
As shown in fig. 9 and 10, in order to better lock the armrest portion and facilitate release of the armrest portion locked state, the seat portion 21 includes a seat connecting seat 211 for rotatable connection with the outer connecting seat 23, the backrest portion 22 includes a backrest connecting seat 221 for rotatable connection with the seat connecting seat 211, the armrest portion 24 includes an armrest connecting seat 241 for rotatable connection with the seat connecting seat 211, the armrest locking mechanism 25 includes an armrest locking notch 251 provided on the armrest connecting seat 241 and an armrest locking block 252 slidably provided on the seat connecting seat 211 and capable of being locked into the armrest locking notch 251, an armrest locking elastic member 253 for maintaining the armrest locking block 252 elastically locked into the armrest locking notch 251 is provided between the armrest locking block 252 and the seat connecting seat 211, and the armrest locking block 252 is configured to be unlocked by the backrest portion 22 when the backrest portion 22 is folded forward to a predetermined angle with respect to the seat portion 21.
As shown in fig. 9-12, the backrest connecting base 221 is provided with an armrest unlocking driving portion 254 for driving the armrest locking block 252 to exit the armrest locking notch 251 when the backrest portion 22 is folded forward to a predetermined angle with respect to the seat portion 21. Preferably, the armrest unlocking drive 254 is an armrest unlocking drive ramp that better interlocks with the armrest locking block 252, as shown in fig. 10-12. When the armrest portion needs to be unlocked, the armrest unlocking driving portion 254 drives the armrest locking block 252 to exit the armrest locking notch 251 to release the armrest portion 24 from locking with respect to the seat portion 21 when the backrest portion 22 is operated to be flipped forward with respect to the seat portion 21 to a predetermined angle.
As shown in fig. 10 and 12, in order to better lock the backrest, the seat 21 includes a seat connecting seat 211 rotatably connected to the outer connecting seat 23, the backrest 22 includes a backrest connecting seat 221 rotatably connected to the seat connecting seat 211, the backrest locking mechanism 3 includes a plurality of backrest locking notches 31 provided on the seat connecting seat 211 and backrest locking blocks 32 slidably provided on the backrest connecting seat 221 and capable of being locked into the backrest locking notches 31, and backrest locking elastic members capable of keeping the backrest locking blocks 32 elastically locked into the backrest locking notches 31 are provided between the backrest locking blocks 32 and the backrest connecting seat 221. In this embodiment, the backrest locking blocks 32 are locked into the corresponding backrest locking notches 31 to adjust the inclination angle of the backrest 22 relative to the seat 21, so as to provide a comfortable sitting area, which is suitable for sitting of passengers with different ages.
As shown in fig. 8, for convenience of operation, the backrest portion 22 is provided with a backrest unlocking member 33 for interlocking the backrest locking block 32 to exit the backrest locking notch 31, and the backrest unlocking member 33 is connected to the backrest locking block 32 by a connecting band. As shown in fig. 8, 13 and 14, the backrest unlocking member 33 is a backrest unlocking wrench rotatably connected to the backrest portion 22, the backrest portion 22 is provided with a backrest sliding block 331 capable of being pushed by the backrest unlocking wrench to slide relative to the backrest portion 22, and the backrest sliding block 331 is connected to the backrest locking block 32 through a connecting band.
As shown in fig. 8, 10, 13 and 14, the backrest connecting seat 211 or the armrest connecting seat 241 is provided with an armrest blocking piece 2411 for blocking engagement with the backrest blocking piece 32 and further preventing the backrest 22 from being folded forward relative to the seat 21, and the backrest 22 is provided with a safety locking mechanism 34 for limiting the movement stroke of the backrest blocking piece 32. The safety locking mechanism 34 includes a safety blocking piece 341 slidably disposed on the backrest 22 and a safety avoiding notch 3411 disposed on the safety blocking piece 341, and a safety reset elastic piece 342 is disposed between the safety blocking piece 341 and the backrest 22.
When the inclination angle of the backrest 22 relative to the seat 21 needs to be adjusted, the backrest lock 32 can be retracted from the backrest lock notch 31 only by operating the backrest unlock piece 33 to drive the backrest lock 331 to slide, and at this point, the backrest lock 32 cannot be retracted from the armrest stop 2411 because the safety stop 341 limits the movement stroke of the backrest lock 331.
When the backrest 22 needs to be adjusted to be turned forward relative to the seat 21 to act on the linkage control mechanism 4 and the armrest locking mechanism 25, the safety blocking piece 341 is operated to slide relative to the backrest 22 to cancel the limitation of the safety blocking piece 341 on the movement stroke of the backrest sliding piece 331, and then the backrest unlocking piece 33 is operated to drive the backrest sliding piece 331 to drive the backrest locking piece 32 to slide, so that the backrest sliding piece 331 can enter the safety avoidance notch 3411, and the backrest locking piece 32 can be stopped by the backrest locking notch 31 and the armrest blocking piece 2411.
As shown in fig. 1 to 19, the child car comprises a car body 1, wherein the car body 1 comprises a front foot rod 11, a rear foot rod 12 and a push rod 13, the front foot rod 11, the rear foot rod 12 and the push rod 13 are rotatably connected through a car frame joint assembly 14, the child car seat 2 comprises a seat part 21, a backrest part 22 and an external connecting seat 23, the lower end of the backrest part 22 is rotatably connected to the rear side of the seat part 21, a backrest locking mechanism 3 for locking the backrest part 22 relative to the seat part 21 is arranged between the backrest part 22 and the seat part 21, the external connecting seat 23 is rotatably connected to the outer side of the seat part 21, the seat part 21 is connected with the car frame joint assembly 14 through the external connecting seat 23, the seat part 21 is locked relative to the external connecting seat 23 through the linkage control mechanism 4, the backrest part 22 is configured to enable the car frame joint assembly 14 to be unlocked when the backrest part 22 is folded forward to a preset angle relative to the seat part 21, the backrest part 22 is configured to enable the control mechanism 4 to be unlocked, the backrest part 22 is configured to be folded up to be in a preset angle relative to the car frame joint assembly 14, the control mechanism is configured to enable the linkage mechanism 4 to be locked relative to the outer connecting seat assembly 4 to be locked relative to the outer connecting seat joint assembly 14 when the linkage mechanism is configured to be locked to be kept in a state relative to the outer joint assembly 4 is kept, and the control seat assembly is configured to be locked relative to the outer to the frame joint assembly 4 is controlled to the front to the frame joint assembly is kept. When the baby carrier is folded, the locking state of the backrest locking mechanism on the backrest part is manually released, the backrest part is operated to be folded forwards to a preset angle relative to the seat part so that the linkage control mechanism is linked with the frame joint assembly for unlocking, then the frame main body is rotated and folded to a preset angle so that the frame joint assembly drives the linkage control mechanism to release the locking state of the seat part relative to the external connecting seat, and at the moment, the backrest part and the seat part are rotated and folded towards one side of the front foot rod, so that the whole folding work of the baby carrier is completed.
In the baby carrier, only the backrest locking mechanism 3 is required to be manually unlocked, the frame joint assembly 14 is released by forward overturning movement of the backrest 22 relative to the seat part 21, and the seat part 21 is released by downward overturning movement of the push rod 13 of the frame main body 1, so that the whole unlocking work of the baby carrier is finished, and the unlocking operation is convenient.
Preferably, for better interlocking unlocking, the interlocking control mechanism 4 is further configured such that the frame joint assembly 14 drives the interlocking control mechanism 4 to release the locking state of the seat portion 21 relative to the external connection seat 23 when the push rod 13 is turned down to a preset angle.
As shown in fig. 17, for more convenience in folding, a frame rotation elastic member 146 capable of rotating the push rod 13 relative to the rear foot rod 12 is disposed between the push rod 13 and the rear foot rod 12, wherein the frame rotation elastic member 146 is a torsion spring. When the linkage control mechanism 4 is linked with the frame joint assembly 14 to unlock, the frame rotating elastic member 146 can provide a rotating restoring force for the push rod 13 to rotate towards the rear foot rod 11, so that the frame joint assembly 14 can drive the linkage control mechanism 4 to release the locking state of the seat part 21 relative to the external connecting seat 23.
As shown in fig. 17, in order to better lock and unlock the frame body, the frame joint assembly 14 includes a rear joint base 142 provided at an upper end of the rear foot bar 12, a front joint base 141 provided at an upper end of the front foot bar 11 for rotatably coupling with the rear joint base 142, and a handle joint base 143 provided at a lower end of the push rod 13 for rotatably coupling with the rear joint base 142, and the frame joint assembly 14 further includes a frame locking mechanism 145 for locking the front joint base 141 and/or the handle joint base 143 with respect to the rear joint base 142, the frame locking mechanism 145 being configured to be interlocked and unlocked by the interlocking control mechanism 4.
As shown in fig. 16 and 17, a linkage 144 for simultaneously rotating the front joint seat 141 and the handle joint seat 143 in opposite directions or in opposite directions is provided between the front joint seat 141 and the handle joint seat 143, and the present invention can reduce assembly difficulty and manufacturing cost by connecting the linkage, compared to the prior art in which a gear common mechanism is adopted.
As shown in fig. 16 and 17, the front joint seat 141 and the rear joint seat 142 are hinged at a point a, the handle joint seat 143 and the rear joint seat 142 are hinged at a point B, the front end of the linkage member 144 is eccentrically hinged with the front joint seat 141 at a point C, the rear end of the linkage member 144 is eccentrically hinged with the handle joint seat 143 at a point D, an included angle is formed between a connecting line of two points C, D and a connecting line of two points A, B, and two points C, D are correspondingly positioned at two sides of the point B.
As shown in fig. 17, for more convenience in folding, a frame rotation elastic member 146 is provided between the handle joint seat 143 and the rear joint seat 142 to enable the handle joint seat 143 to rotate relative to the rear joint seat 142.
As shown in fig. 17-19, for better locking and unlocking the frame body, the frame locking mechanism 145 includes a frame locking notch 1451 provided on the handle joint seat 143 and/or the front joint seat 141, and a frame locking block 1452 slidably provided on the rear joint seat 142 and capable of being locked into the frame locking notch 1451 to lock the front joint seat 141 and the handle joint seat 143 in an unfolded state with respect to the rear joint seat 142, the frame locking block 1452 and the rear joint seat 142 are provided with a frame locking elastic member 1453 therebetween for enabling the frame locking block 1452 to remain elastically locked into the frame locking notch 1451, and the frame locking block 1452 is configured to be interlocked and unlocked by the interlocking control mechanism 4.
As shown in fig. 7 and 17, for convenience of use, the frame body 1 is further independently provided with a frame unlocking mechanism 5 for unlocking the frame joint assembly 14, the frame unlocking mechanism 5 includes a frame unlocking member 51 slidably disposed in the rear joint seat 142 and relatively fixedly connected to the frame locking block 1452, an operation end of the frame unlocking member 51 is exposed outside the rear joint seat 142, a frame unlocking elastic member 52 is disposed between the frame unlocking member 51 and the rear joint seat 142, and the frame unlocking member 51 is configured to be capable of being unlocked in a linkage manner by the linkage control mechanism 4. When the child seat is detached from the frame body and the frame body needs to be folded, the user operates the frame unlocking elastic member 52 to slide downward relative to the rear joint seat 142, so that the frame locking block 1452 is retracted from the frame locking notch 1451 to release the locking state of the frame joint assembly 14. When the child seat is connected to the frame body and needs to fold the frame body, the locking state of the backrest locking mechanism on the backrest is manually released, and the backrest is operated to be folded forward to a preset angle relative to the seat portion so that the linkage control mechanism is linked with the frame unlocking member 51 to act, and then the frame locking block 1452 slides downwards relative to the rear joint seat 142 to exit the frame locking notch 1451 so as to release the locking state of the frame joint assembly 14.
As shown in fig. 17-19, the locking end of the frame locking block 1452 is provided with a frame locking inclined surface 14521 for abutting and matching with the peripheral wall of the handle joint seat 143, when the push rod 13 drives the handle joint seat 143 to rotate, the peripheral wall of the handle joint seat 143 pushes against the frame locking inclined surface 14521 to enable the frame locking block 1452 to slide downwards relative to the rear joint seat 142, and then the frame locking block 1452 links the linkage control member 42 to slide downwards relative to the external connecting seat 23 to enable the upper end of the linkage control member 42 to withdraw from the seat locking hole 41, so as to release the locking state of the seat 21.
As shown in fig. 7 and 17, for easy detachment and reliable linkage, a connection linkage structure 7 for detachably connecting the frame unlocking member 51 and the linkage control member 42 is provided between the frame unlocking member 51 and the linkage control member 42, the connection linkage structure 7 includes a connection linkage clamping portion 71 provided on the linkage control member 42 and a connection clamping block 72 slidably provided on the frame unlocking member 51 and capable of being clamped with the connection linkage clamping portion 71, and a connection locking elastic member 73 capable of keeping the connection clamping block 72 elastically clamped on the connection linkage clamping portion 71 is provided between the connection clamping block 72 and the frame unlocking member 51. The connection block 72 is configured to be interlockingly unlocked by the external unlocking member 64. As shown in fig. 7, 9, 10 and 17, the connecting linkage clamping portion 71 is a connecting clamping strip, and the connecting clamping block 72 is provided with a connecting clamping groove for being matched with the connecting clamping strip in a clamping manner.
As shown in fig. 7 and 10, the outer connecting seat 23 is detachably connected with the frame joint assembly 14, an outer locking and unlocking mechanism 6 for locking the outer connecting seat 23 relative to the frame joint assembly 14 and unlocking the outer connecting seat 23 relative to the frame joint assembly 14 is arranged between the outer connecting seat 23 and the frame joint assembly 14, the outer locking and unlocking mechanism 6 comprises an outer locking notch 61 arranged on the rear joint seat 142 and an outer locking block 62 slidably arranged on the outer connecting seat 23 and capable of being clamped into the outer locking notch 61, an outer locking elastic piece 63 capable of enabling the outer locking block 62 to be elastically clamped into the outer locking notch 61 is arranged between the outer locking block 62 and the outer connecting seat 23, the outer locking and unlocking mechanism 6 further comprises an outer unlocking piece 64 slidably arranged on the outer connecting seat 23, and an outer driving part 641 for driving the outer locking block 62 to withdraw from the outer locking notch 61 when the outer unlocking piece 64 slides relative to the outer connecting seat 23 is arranged on the outer unlocking piece 64. When the child seat needs to be detached from the frame body, the user operates the outer unlocking member 64 to slide vertically with respect to the outer connection seat 23, so that the outer unlocking driving part 641 drives the outer locking block 62 to slide laterally with respect to the outer connection seat 23 to withdraw from the outer locking notch 61. As shown in fig. 7, the outer unlocking slope of the lower end of the outer unlocking piece 64 is configured to act the connection block 72 to slide laterally so that the connection block 72 is separated from the connection link block 71.
Folding principle of children's vehicle:
Firstly, the safety blocking block 341 is operated to slide relative to the backrest 22 so as to cancel the limitation of the safety blocking block 341 on the movement stroke of the backrest sliding block 331, and then the backrest unlocking piece 33 is operated to drive the backrest sliding block 331 to drive the backrest locking block 32 to slide, so that the backrest sliding block 331 can enter the safety avoiding notch 3411, and the backrest locking block 32 is stopped by the backrest locking notch 31 and the armrest blocking block 2411;
Then, the backrest portion 22 is operated to be turned forward to a preset angle relative to the seat portion 21, as shown in fig. 4, the linkage control driving portion 44 drives the linkage control member 42 to slide downward relative to the external connection seat 23, so that the lower end of the linkage control member 42 drives the frame unlocking member 51 together with the frame locking block 1452 to slide downward relative to the rear joint seat 142, and the frame locking block 1452 is caused to withdraw from the frame locking notch 1451, as shown in fig. 17, so that the locking state of the frame joint assembly 14 is released;
Then the push rod 13 is turned downwards to a preset angle relative to the rear foot bar 11, so that the peripheral wall of the handle joint seat 143 pushes against the frame locking inclined surface 14521 to drive the frame locking block 1452 to drive the frame unlocking member 51 to slide downwards relative to the rear joint seat 142, the frame unlocking member 51 acts on the linkage control member 42 to slide downwards relative to the external connecting seat 23, the upper end of the linkage control member 42 exits the seat locking hole 41, the locking state of the seat part 21 relative to the external connecting seat 23 is released, and at the moment, the backrest part 22 and the seat part 21 can be rotated towards one side of the front foot bar 11 until the seat part 21 and the backrest part 22 are close to the front foot bar 11, as shown in fig. 5 and 6;
in the process of downward overturning the push rod 13 relative to the rear foot rod 11, the push rod 13 is linked to the front foot rod 11 relative to the rear foot rod 11 through the linkage piece 144 to overturn backwards until the frame main body is folded, so that the whole folding work of the baby carrier is realized, and the folding work is convenient as shown in fig. 5 and 6.