Baby carriage frame
[ Field of technology ]
The invention relates to a baby carriage frame.
[ Background Art ]
The foldable baby carrier is a common product in the growth process of children, and the current baby carrier generally comprises front supporting legs, rear supporting legs, seat supporting pieces, push rod assemblies and transmission rods among the push rod assemblies, so that the number of the rods is relatively large, the structure is relatively complex, the cost is relatively high, and an improvement space exists.
The present invention has been made in view of the above drawbacks.
[ Invention ]
The invention aims to overcome the defects of the prior art and provides the baby carriage frame which is simple in structure and low in cost.
The invention is realized by the following technical scheme:
the baby carrier frame can move from an unfolding position to a folding position and is characterized by comprising a first supporting leg 1 and a second supporting leg 2, wheels 5 are arranged at the lower ends of the first supporting leg and the second supporting leg, a first connecting seat 11 is arranged on the first supporting leg 1, a second connecting seat 21 which is rotationally connected with the first connecting seat 11 around a first axis A is arranged on the second supporting leg 2, a push rod assembly 3 and a seat supporting piece 4 are further connected on the first connecting seat 11, the push rod assembly 3 is rotationally connected with the first connecting seat 11 around a second axis B, the seat supporting piece 4 is rotationally connected with the first connecting seat 11 around a third axis C, a first locking device for locking the first connecting seat 11 and the second connecting seat 11 is arranged in a space surrounded by the first supporting piece 4 and the first connecting seat 11, a third locking device for locking the first connecting seat 11 and the push rod assembly 3 is further arranged in the first connecting seat 11, and the first locking device can be rotated by the first locking device and the second locking device for unlocking the push rod assembly 3 when the first supporting leg 1 is rotated relatively.
The frame of the baby carrier is characterized in that the push rod assembly 3 comprises a rotating seat 31 which is penetrated in the first connecting seat 11 and can rotate around the second axis B, and an outer supporting rod 32 is connected to the rotating seat 31.
The frame of the baby carrier is characterized in that the first locking device comprises a first locking block 71 which can be driven by the driving piece 6 to slide in the first connecting seat 11, a first locking groove 72 is arranged on the first locking block 71, a first reset spring 74 which can be locked with the first locking groove 72 and can be disengaged from the first locking groove 72 when the first locking block 71 is pushed by the driving piece 6 to slide relative to the first connecting seat 11 is arranged on the second connecting seat 21 and deviates from the first axis A, and the first connecting seat 11 is also internally provided with a first reset spring 74 which can push the first locking block 71 to reset.
The frame of the baby carrier is characterized in that the second locking device comprises a second locking pin 81 arranged on the first connecting seat 11, an arc-shaped groove 82 which can enable the second locking pin 81 to slide relatively is arranged on the seat support 4, a second locking block 83 which can move transversely in the seat support 4 and can be matched with the end part of the arc-shaped groove 82 to enclose the second locking pin 81 is also arranged in the seat support 4, a sliding block 84 which can be driven by the transmission piece 6 to slide in the seat support 4 is also arranged in the seat support 4, when the sliding block 84 slides relative to the seat support 4, the sliding block 84 pushes the second locking block 83 to move so that the second locking block 83 is separated from the second locking pin 81, and a second reset spring 85 which can push the second locking block 83 to reset is also arranged in the seat support 4.
The frame of the baby carrier is characterized in that the transmission member 6 comprises a first transmission surface 61 which is arranged on the outer side wall of the rotating seat 31 and is in abutting fit with the upper end of the first locking block 71, when the rotating seat 31 rotates, the first transmission surface 61 pushes the upper end of the first locking block 71 to enable the first locking block 71 to slide relative to the first connecting seat 11, the transmission member 6 also comprises a second transmission surface 62 which is arranged on the outer side wall of the rotating seat 31, and during the rotating process of the rotating seat 31, the second transmission surface 62 pushes the lower end of the sliding block 84 to enable the sliding block 84 to slide relative to the seat support 4.
The frame of the baby carrier is characterized in that the third locking device comprises a third locking pin 91 which is arranged in the first connecting seat 11 and can slide in the third locking pin 91, a first clamping groove 92 which can be clamped or separated with the third locking pin 91 and can prevent the push rod assembly 3 from rotating forwards during clamping is arranged on the rotating seat 31, the third locking device further comprises a driving assembly 93 which is arranged in the push rod assembly 3 and can drive the third locking pin 91 to separate from the first clamping groove 92, a second clamping groove 94 which can be clamped or separated with the upper end of the first locking block 71 and can prevent the push rod assembly 3 from rotating backwards during clamping is arranged on the rotating seat 31, the upper side wall of the second clamping groove 94 is in butt joint with the upper end of the first locking block 71, the rear side wall of the second clamping groove 94 is in butt joint with the side surface of the first locking block 71, the first driving surface 61 is formed by the upper side wall of the second clamping groove 94, and a third reset spring 95 which can push the third locking pin 91 to reset is arranged in the first connecting seat 11.
The frame of the baby carrier is characterized in that an inner hole is formed in the first connecting seat 11, a bracket 96 capable of sliding in the inner hole is inserted in the inner hole, the third locking pin 91 is arranged on the bracket 96, and the third return spring 95 is arranged between the bottom of the inner hole and the bracket 96.
The frame of the baby carrier is characterized in that the driving assembly 93 comprises a driving block 931 capable of moving in the rotating seat 31 to push the third locking pin 91 to be separated from the first locking groove 92, a chute 932 is arranged on the driving block 931, a bar-shaped groove 933 communicated with the chute 932 is arranged on the rotating seat 31 along the direction of the second axis B, a driving pin 934 is arranged in the bar-shaped groove 933 and the chute 932 in a penetrating manner, and a pull rope 935 connected with the driving pin 934 and capable of pulling the driving pin 934 to move to push the driving block 931 to move is arranged in the outer supporting rod 32.
The frame of the baby carrier is characterized in that the outer stay bar 32 is internally provided with a push rod 33 which can stretch and retract in the outer stay bar 32, the outer stay bar 32 is internally provided with a fixed seat 34, the fixed seat 34 is internally provided with a sliding seat 936 which can be impacted by the lower end of the push rod 33 to slide relative to the fixed seat 34 when the push rod 33 stretches out and draws back towards the inner stay bar 32, and the stay cable 935 bypasses a fixed shaft 35 on the fixed seat 34 and is connected to the sliding seat 936.
The frame of the baby carrier is characterized in that the seat support 4 is also connected with a seat assembly 50 capable of rotating relative to the seat support, a positioning device is arranged between the seat assembly 50 and the seat support 4, the positioning device comprises a positioning groove arranged on the seat support 4, the positioning groove comprises a first positioning groove 501 and a second positioning groove 502 which can enable the seat assembly 50 to stay in the front direction and the back direction, the positioning groove also comprises a third positioning groove 503 which can enable the seat assembly 50 to stay in the inclined front direction, and the seat assembly 50 is provided with a positioning pin which can be respectively engaged with or disengaged from the first positioning groove 501, the second positioning groove 502 and the third positioning groove 503.
Compared with the prior art, the invention has the following advantages:
1. The invention sets the first locking device in the space surrounded by the first connecting seat and the second connecting seat, sets the second locking device in the space surrounded by the first connecting seat and the seat supporting piece, sets the third locking device locking the first connecting seat and the push rod component, locks the baby carriage frame in the unfolding state, and because the first locking device, the second locking device and the third locking device are all set in the inner space, the baby carriage frame is simple in whole and has few external transmission rods, the baby carrier is low in cost, when the baby carrier frame is folded, once the third locking device is unlocked, and the push rod assembly is rotated and folded relative to the first supporting leg, the transmission piece on the push rod assembly can drive the first locking device and the second locking device to be unlocked, so that the seat supporting piece can be rotated and closed towards the first supporting leg, and the second supporting leg can be rotated and closed towards the first supporting leg, so that unlocking of all components of the baby carrier frame is linkage control, and the folding operation of the baby carrier frame is simple and quick.
2. The seat support of the invention is provided with the first positioning groove and the second positioning groove which can lead the seat assembly to stay in the front direction and the back direction, and the seat support is also provided with the third positioning groove which can lead the seat assembly to stay in the inclined front direction, and the first positioning groove, the second positioning groove and the third positioning groove respectively cooperate with the positioning pin on the seat assembly to lead the seat assembly to stay in the proper orientation position. The front and back directions of the seat assembly can be changed through the cooperation of the first positioning groove and the second positioning groove with the positioning pin, and the seat assembly can be directed to the oblique front direction through the cooperation of the third positioning groove with the positioning pin, so that the direction is particularly suitable for children taking in the seat assembly to watch animals on the glass edge of the zoo, and the children can be enabled to be closer to the zoo glass when the children watch animals in front, and the children are enabled to be as close to the animals as possible, thereby being convenient for watching.
3. The folding device is simple in structure, low in cost, convenient to fold and operate and suitable for popularization and application.
[ Description of the drawings ]
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a side view of the present invention in a folded state;
FIG. 4 is one of the partial cross-sectional views of the present invention;
FIG. 5 is an exploded view of the components of the present invention;
FIG. 6 is a second partial cross-sectional view of the present invention;
FIG. 7 is a third partial cross-sectional view of the present invention;
FIG. 8 is a perspective view of the present invention after the seating assembly is deployed;
fig. 9 is a schematic view showing a folded state of the present invention after the seat assembly is configured.
[ Detailed description ] of the invention
The invention is further described below with reference to the accompanying drawings:
As shown in fig. 1 to 6, a baby carrier frame can move from an unfolding position to a folding position, and comprises a first supporting leg 1 and a second supporting leg 2, wherein wheels 5 are arranged at the lower ends of the first supporting leg and the second supporting leg, a first connecting seat 11 is arranged on the first supporting leg 1, a second connecting seat 21 rotationally connected with the first connecting seat 11 around a first axis A is arranged on the second supporting leg 2, a push rod assembly 3 and a seat supporting member 4 are further connected on the first connecting seat 11, the push rod assembly 3 and the first connecting seat 11 are rotationally connected around a second axis B, the seat supporting member 4 is rotationally connected with the first connecting seat 11 around a third axis C, a first locking device for locking the first connecting seat 11 and the second connecting seat 21 is arranged in a space surrounded by the first connecting seat 4 and the first connecting seat 11, a second locking device for locking the first connecting seat 11 and the second locking device is further arranged in the first connecting seat 11, a third locking device for locking the push rod assembly 3 and the first locking device is arranged on the first connecting seat 11, and the first locking device can rotate relative to the first connecting seat 1, and the first locking device can lock the first supporting member 3 and the first locking device is rotatably connected with the first supporting member 1. The first locking device is arranged in the space surrounded by the first connecting seat 11 and the second connecting seat 21, the second locking device is arranged in the space surrounded by the first connecting seat 11 and the seat support 4, the third locking device for locking the first connecting seat 11 and the push rod assembly 3 is further arranged in the first connecting seat, so that the baby carriage frame is locked in an unfolding state, and because the first locking device, the second locking device and the third locking device are all arranged in the inner space, the baby carriage frame is simple in whole, the external transmission rod pieces are few, the cost is low, and when the baby carriage frame is folded, once the third locking device is unlocked, and when the push rod assembly 3 is folded in a rotating way relative to the first supporting leg 1, the transmission piece 6 on the push rod assembly 3 can also drive the first locking device and the second locking device to be unlocked, and then the seat support 3 can be enabled to be folded in a rotating way relative to the first supporting leg 1, and the second supporting leg 2 can be folded in a rotating way relative to the first supporting leg 1, so that unlocking of each component of the baby carriage frame is controlled in a linkage way, and the folding operation of the baby carriage frame is simple and quick. Specifically, when folding, after the third locking device is unlocked, the push rod assembly 3 is rotated forwards around the second axis B, the transmission piece 6 on the push rod assembly 3 enables the first locking device and the second locking device to be unlocked, at the moment, only the first connecting seat 11 or the second connecting seat 21 is lifted upwards, the seat support 4 can be rotated to the first support leg 1 around the third axis C to be close, and the first support leg 1 can be rotated to be close around the first axis a relative to the second support leg 2, so that the frame of the baby carrier is folded.
As shown in fig. 4 to 6, the push rod assembly 3 includes a rotating seat 31 penetrating the first connecting seat 11 and capable of rotating around the second axis B, and an outer stay 32 is connected to the rotating seat 31.
As shown in fig. 5 and 6, the first locking device includes a first locking block 71 that can be driven by the driving member 6 to slide in the first connecting seat 11, a first locking groove 72 is provided on the first locking block 71, a first return spring 74 that can be engaged with the first locking groove 72 and can be disengaged from the first locking groove 72 when the first locking block 71 is pushed by the driving member 6 to slide relative to the first connecting seat 11 is provided on the second connecting seat 21 and deviates from the first axis a, and the first connecting seat 11 is also provided with a first return spring 74 that can push the first locking block 71 to return. When the third locking device is unlocked and the rotating base 31 rotates forwards around the second axis B, the transmission member 6 pushes the first locking piece 71 to slide in the first connecting base 11, and during the sliding process, the first locking groove 72 on the first locking piece 71 is separated from the first locking pin 73 on the second connecting base 21, and once the first locking pin 73 and the first locking groove 72 are separated, the first locking device is unlocked, and the first supporting leg 1 can rotate and fold relative to the second supporting leg 2.
As shown in fig. 5 and 6, the second locking device includes a second locking pin 81 provided on the first connecting seat 11, the seat support 4 is provided with an arc-shaped slot 82 for the second locking pin 81 to slide relatively, the seat support 4 is further provided with a second locking block 83 capable of moving transversely therein and cooperating with an end of the arc-shaped slot 82 to enclose the second locking pin 81, the seat support 4 is further provided with a sliding block 84 capable of being driven by the driving member 6 to slide in the seat support 4, and when the sliding block 84 slides relative to the seat support 4, the sliding block 84 pushes the second locking block 83 to move so that the second locking block 83 is separated from the second locking pin 81, and the seat support 4 is further provided with a second return spring 85 capable of pushing the second locking block 83 to return. When the third locking device is unlocked and the rotating seat 31 rotates forwards around the second axis B, the transmission member 6 pushes the sliding block 84 to slide, the sliding block 84 pushes the second locking block 83 to move in the sliding process, the second locking block 83 does not enclose the second locking pin 81 with the end of the arc-shaped groove 82 in the moving process, so that the second locking pin 81 can slide relative to the arc-shaped groove 82, the second locking device is unlocked, and the seat support 4 can rotate around the third axis C relative to the first connecting seat 11 to close to the first support leg 1. The sliding block 84 and the second locking block 83 may be matched by adopting a slope pushing and slope matching mode, that is, the longitudinal movement of the sliding block 84 is converted into the transverse movement of the second locking block 83.
As shown in fig. 6, the transmission member 6 includes a first transmission surface 61 disposed on an outer sidewall of the rotating base 31 and in abutting engagement with an upper end of the first locking block 71, when the rotating base 31 rotates, the first transmission surface 61 pushes the upper end of the first locking block 71 to slide the first locking block 71 relative to the first connecting base 11, and the transmission member 6 further includes a second transmission surface 62 disposed on an outer sidewall of the rotating base 31, and during rotation of the rotating base 31, the second transmission surface 62 pushes the lower end of the sliding block 84 to slide the sliding block 84 relative to the seat support 4. When the rotating seat 31 rotates, the first transmission surface 61 pushes the upper end surface of the first locking block 71, so that the first locking block 71 slides, and the first locking device is unlocked. In addition, during the rotation of the rotating seat 31, the second transmission surface 62 also pushes the lower end surface of the sliding block 84, so that the sliding block 84 moves, and further pushes the second locking block 83 to move, and finally, the second locking device is unlocked. Therefore, the second locking device and the first locking device can be unlocked in a linkage way by rotating the rotating seat 31, and the design is ingenious. As shown in fig. 6, the first locking block 71 can be moved smoothly, the first transmission surface 61 can be set to be an arc surface, and the upper end surface of the first locking block 71 is also set to be an arc surface.
As shown in fig. 4 to 6, the third locking device includes a third locking pin 91 disposed in the first connecting seat 11 and capable of sliding therein, the rotating seat 31 is provided with a first locking groove 92 capable of locking or releasing the third locking pin 91 and preventing the push rod assembly 3 from rotating forward during locking, the third locking device further includes a driving assembly 93 disposed in the push rod assembly 3 and capable of driving the third locking pin 91 to release from the first locking groove 92, the rotating seat 31 is further provided with a second locking groove 94 capable of locking or releasing the upper end of the first locking block 71 and preventing the push rod assembly 3 from rotating backward during locking, an upper side wall of the second locking groove 94 is abutted with an upper end of the first locking block 71, a rear side wall of the second locking groove 94 is abutted with a side surface of the first locking block 71, the first driving surface 61 is formed by an upper side wall of the second locking groove 94, and the first connecting seat 11 is further provided with a third reset spring 95 capable of pushing the third locking pin 91. When the stroller frame is in the unfolded state, the third locking pin 91 is located in the first clamping groove 92, the first locking block 71 is located in the second clamping groove 94, the third locking pin 91 is matched with the first clamping groove 92 so that the push rod assembly 3 cannot rotate forwards, and the first locking block 71 is matched with the second clamping groove 94 so that the push rod assembly 3 cannot rotate backwards, so that the unfolded state of the stroller frame is maintained. When the child is to be folded, the third locking pin 91 is pushed out of the first locking groove 92 by the driving component 93, and the push rod component 3 can be rotated forwards to fold the child.
As shown in fig. 5, the first connecting seat 11 is provided with an inner hole (not shown), a bracket 96 capable of sliding therein is inserted into the inner hole, the third locking pin 91 is provided on the bracket 96, and the third return spring 95 is provided between the bottom of the inner hole and the bracket 96.
As shown in fig. 5, the driving assembly 93 includes a driving block 931 capable of moving in the rotating seat 31 to push the third locking pin 91 out of engagement with the first locking groove 92, a chute 932 is disposed on the driving block 931, a bar-shaped slot 933 communicating with the chute 932 is disposed on the rotating seat 31 along the second axis B, a driving pin 934 is disposed in the bar-shaped slot 933 and the chute 932, and a cable 935 connected to the driving pin 934 and capable of pulling the driving pin 934 to move to push the driving block 931 to move is disposed in the outer strut 32. When the cable 935 pulls the driving pin 934, the driving pin 934 pushes the groove wall of the chute 932 when moving laterally, so that the driving block 931 can move longitudinally in the rotating base 31, and the third locking pin 91 is pushed to disengage from the first locking groove 92 by the driving block 931, so that the third locking device is unlocked.
As shown in fig. 5 and 7, the outer stay 32 is further provided with a push rod 33 that can extend and retract therein, the outer stay 32 is provided with a fixed seat 34, the fixed seat 34 is provided with a sliding seat 936 that can be impacted by the lower end of the push rod 33 and slide relative to the fixed seat 34 when the push rod 33 is retracted into the outer stay 32, and the pull rope 935 bypasses the fixed shaft 35 on the fixed seat 34 and is connected to the sliding seat 936. When the push rod 33 impacts the sliding seat 936 downward, the sliding seat 936 moves downward, and the cable 935 pulls the driving pin 934 to move laterally when the sliding seat 936 moves downward because the cable 935 is connected to the sliding seat 936 around the fixed shaft 35, thereby achieving a smart design.
As shown in fig. 1, 5, 8 and 9, the seat support 4 is further connected with a seat assembly 50 capable of rotating relative to the seat support, a positioning device is disposed between the seat assembly 50 and the seat support 4, the positioning device includes a positioning slot disposed on the seat support 4, the positioning slot includes a first positioning slot 501 and a second positioning slot 502 capable of enabling the seat assembly 50 to stay in a forward direction and a backward direction, the positioning slot further includes a third positioning slot 503 capable of enabling the seat assembly 50 to stay in an obliquely forward direction, and the seat assembly 50 is provided with positioning pins (not shown in the drawings) capable of being engaged with or disengaged from the first positioning slot 501, the second positioning slot 502 and the third positioning slot 503, respectively. The front-back direction of the seat assembly 50 can be changed by matching the first positioning groove 501 and the second positioning groove 502 with the positioning pins respectively, and the seat assembly 50 can be directed obliquely forwards by matching the third positioning groove 503 with the positioning pins, so that the direction is particularly suitable for the children in the seat assembly 50 to watch animals on the glass edge of the zoo, the side surface of the baby carrier is closer to the zoo glass when the children watch animals on the front surface of the children, and the children are closer to the animals as much as possible, thereby being convenient for watching.
As shown in fig. 8 and 9, the hand push rod 33 is further provided with a support portion 60 capable of being supported on the ground when the stroller is in a folded state, so that the stroller is kept in a standing state.