CN216002740U - Baby carriage - Google Patents

Abstract

The utility model discloses a baby carriage.A front support assembly comprises a front leg, wherein the upper end of the front leg is provided with a first connecting part, and the lower end of the front leg is provided with a front wheel; the rear support assembly comprises a rear leg, a second connecting part is arranged at the upper end of the rear leg, a rear wheel is arranged at the lower end of the rear leg, and the second connecting part and the first connecting part are rotatably connected around a first axis; the seat support is rotatably connected to the front support assembly about a second axis; one end of the transmission rod is rotatably connected with the front side of the seat support around a third axis, and the other end of the transmission rod is rotatably connected with the rear support assembly around a fourth axis; and, when the stroller is moved from the unfolded position to the folded position, the seat support and back-support assembly pivot relative to the front legs from either side of the front legs to close onto the front legs. The utility model has simple structure and convenient operation.

Description

Baby carriage

[ technical field ] A method for producing a semiconductor device

The utility model relates to a baby carriage.

[ background of the utility model ]

The baby carrier becomes an indispensable product in the growth process of the baby. The baby carriage in the current market can be unfolded or folded generally, but the baby carriage in the current market has the disadvantages of complex structure, more transmission connecting rods and inconvenient folding operation.

Therefore, the present invention has been made in view of the above disadvantages.

[ Utility model ] content

The utility model aims to overcome the defects of the prior art and provides the baby carriage with simple structure and convenient operation.

The utility model is realized by the following technical scheme:

a stroller movable from an unfolded position to a folded position after a latch is unlocked, characterized in that: the method comprises the following steps:

the front support assembly 1 comprises front legs 11, the upper ends of the front legs 11 are provided with first connecting parts 12, and the lower ends of the front legs 11 are provided with front wheels 13;

the rear support component 2 comprises a rear leg 21, a second connecting part 22 is arranged at the upper end of the rear leg 21, a rear wheel 23 is arranged at the lower end of the rear leg 21, and the second connecting part 22 and the first connecting part 12 are rotatably connected around a first axis A;

a seat support 3, said seat support 3 being rotatably connected to the front support assembly 1 about a second axis B;

a transmission rod 4, one end of the transmission rod 4 is rotatably connected with the front side of the seat supporting member 3 around a third axis C, and the other end of the transmission rod 4 is rotatably connected with the back support assembly 2 around a fourth axis D;

and, when the stroller is moved from the unfolded position to the folded position, the seat support 3 and the rear support assembly 2 are rotated from both sides of the front legs 11 with respect to the front legs 11 to be drawn close to the front legs 11.

The stroller as described above, characterized in that: the seat support 3 is provided with a rotating seat 53 which can rotate at least 180 degrees relative to the seat support, the rotating seat 53 is provided with an upper stay bar 51 which can rotate relative to the rotating seat 53, and the upper stay bar 51 is rotatably or slidably connected with a hand push rod 52.

The stroller as described above, characterized in that: a locking mechanism 6 for locking the position of the rotating seat 53 is arranged between the rotating seat 53 and the seat supporting member 3, a locking mechanism 7 for locking the position of the upper stay 51 is arranged between the upper stay 51 and the rotating seat 53, and a transmission member 8 capable of driving the locking mechanism 6 to unlock when the locking mechanism 7 unlocks is arranged between the locking mechanism 7 and the locking mechanism 6.

The stroller as described above, characterized in that: the locking mechanism 6 comprises a locking hole 61 arranged on the seat supporting piece 3, a locking groove 62 is arranged on the rotating seat 53, a first spline 63 which can move in the space enclosed by the rotating seat 53 and the seat supporting piece 3 and is simultaneously clamped with the locking hole 61 and the locking groove 62 is arranged in the space, and a first spring 64 is also arranged between the rotating seat 53 and the first spline 63;

the locking mechanism 7 comprises an inner locking seat 71 arranged on the rotating seat 53 and an outer locking seat 72 arranged at the lower end of the upper supporting rod 51, the inner locking seat 71 and the outer locking seat 72 are respectively provided with a locking groove along the circumferential direction, a second spline 74 capable of transversely sliding in the inner locking seat 71 and being simultaneously clamped with the locking grooves on the inner locking seat 71 and the outer locking seat 72 is arranged in the inner locking seat 71 and the outer locking seat 72, a second spring 75 is further arranged between the inner locking seat 71 and the second spline 74, and a rotating block 76 capable of pushing the second spline 74 to be separated from the locking groove on the outer locking seat 72 when rotating is arranged between the second spline 74 and the outer locking seat 72;

the transmission member 8 includes a transmission bar 81 disposed in the rotating seat 53, one end of the transmission bar 81 is engaged with the second spline 74, the other end is engaged with the first spline 63, and a third spring 82 capable of restoring the transmission bar 81 is disposed between the transmission bar 81 and the rotating seat 53, when the second spline 74 is disengaged from the locking groove 73 of the outer locking seat 72, the second spline 74 laterally pushes the transmission member 8 to slide, so that the transmission member 8 pushes the first spline 63 to disengage from the locking hole 61 of the seat support 3.

The stroller as described above, characterized in that: the seat support 3 is connected to the first connection 12 about a second axis B and the transmission rod 4 is connected to the second connection 22 about a fourth axis D.

The stroller as described above, characterized in that: locking device including rotating the locking on first connecting portion 12 and colluding 91, second connecting portion 22 on be equipped with can collude the block groove 92 of 91 block with the locking, first connecting portion 12 on still be equipped with and be used for driving the locking and collude the drive assembly 93 that 91 and block groove 92 break away from, first connecting portion 12 and locking collude 91 between still be equipped with fourth spring 94, drive assembly 93 including rotating the dwang 931 of connecting on first connecting portion 12, dwang 931 one end be equipped with operation portion 932, be equipped with between the other end and the locking collude 91 and can stimulate the cable 933 that locking colludes 91 and block groove 92 and break away from when dwang 931 rotates, first connecting portion 12 and dwang 931 between be equipped with fifth spring 934.

The stroller as described above, characterized in that: the seat support 3 is provided with a protruding block 31, and the rotating rod 931 is provided with a pressing part 935 which can press the protruding block 31 when the stroller is unfolded and can be separated from the protruding block 31 when the locking device is unlocked.

The stroller as described above, characterized in that: the locking device is characterized in that a moving column 941 capable of moving transversely in the first connecting portion 12 and being clamped with a locking hook 91 is further arranged in the first connecting portion 12, a moving block 942 which is exposed and capable of pushing the moving column 941 to be separated from the locking hook 91 when being pressed is further arranged on the first connecting portion 12, a sixth spring 943 capable of pushing the moving column 941 to be reset is further arranged in the first connecting portion 12, a positioning groove 944 is further arranged on the first connecting portion 12, a seventh spring 945 is arranged in the moving block 942, a positioning member 946 which can be pressed by the seventh spring 945 and matched with the positioning groove 944 is arranged between the seventh spring 945 and the positioning groove 944, an inclined boss 947 is further arranged on the moving block 942, a pushing portion 948 which can be touched by the inclined boss 947 when the rotating relative to the first connecting portion 12 to unlock the locking device to enable the locking device to be reset is arranged on the rotating column 941 to be reset, a slope 949 capable of being pushed by the edge of the locking hook 91 is arranged on the moving column 941, the first connecting portion 12 is provided with an arc-shaped groove 121 for the protrusion block 31 to move inside, and when the stroller is unfolded, the pressing portion 935 extends into the arc-shaped groove 121 to press the protrusion block 31.

The stroller as described above, characterized in that: the first connecting portion 12 is a shell-shaped structure, the transmission rod 4 is arranged in the first connecting portion 12, and the second connecting portion 22 is embedded in the first connecting portion 12.

A stroller as described above, characterized in that: the rotatable seat 53 or the front stay 41 is detachably connected with a foldable seat assembly 100.

Compared with the prior art, the utility model has the following advantages:

1. the second connecting part on the rear leg of the baby carrier is rotatably connected with the first connecting part on the front leg, the seat supporting part is rotatably connected with the front support assembly, and the seat supporting part is rotatably connected with the rear support assembly through the transmission rod.

2. The seat support is provided with a rotating seat which can rotate at least 180 degrees relative to the seat support, the rotating seat is provided with an upper support rod which can rotate relative to the rotating seat, and the upper support rod is rotatably or slidably connected with a hand push rod. The rotary seat can rotate at least 180 degrees, and the front and back direction of the seat of the baby carrier can be changed. When the operation is carried out, the upper support rod, the hand push rod and the rotating seat only need to be integrally rotated, and the operation is very convenient and fast.

3. The utility model has simple structure and convenient operation, and is suitable for popularization and application.

[ description of the drawings ]

FIG. 1 is a perspective view of embodiment 1 of the present invention;

FIG. 2 is a side view of embodiment 1 of the present invention;

FIG. 3 is an exploded view of embodiment 1 of the present invention;

FIG. 4 is one of the perspective views of a component of the present invention;

FIG. 5 is a second perspective view of a component of the present invention;

FIG. 6 is a third perspective view of a component of the present invention;

FIG. 7 is one of the exploded views of the components of the present invention;

FIG. 8 is one of the side views of the component of the present invention;

FIG. 9 is a second side view of a component of the present invention;

FIG. 10 is a third side view of a component of the present invention;

FIG. 11 is a fourth of the side views of the components of the present invention;

FIG. 12 is a second exploded view of the components of the present invention;

FIG. 13 is a cross-sectional view of a component of the present invention;

FIG. 14 is a third exploded view of the components of the present invention;

FIG. 15 is a fourth of the exploded views of the components of the present invention;

FIG. 16 is one of the side views of embodiment 2 of the present invention;

FIG. 17 is one of the schematic diagrams during the commutation of embodiment 2 of the present invention;

FIG. 18 is a second schematic diagram of the commutation process of embodiment 2 of the present invention;

FIG. 19 is a second side view of embodiment 2 of the present invention;

FIG. 20 is a side view during folding of example 2 of the present invention;

fig. 21 is a side view of embodiment 2 of the present invention in a folded state.

[ detailed description ] embodiments

The utility model is further described below with reference to the accompanying drawings:

example 1:

as shown in fig. 1 to 15, a stroller, which can be moved from an unfolded position to a folded position after a latch is unlocked, comprises:

the front support assembly 1 comprises front legs 11, the upper ends of the front legs 11 are provided with first connecting parts 12, and the lower ends of the front legs 11 are provided with front wheels 13;

the rear support component 2 comprises a rear leg 21, a second connecting part 22 is arranged at the upper end of the rear leg 21, a rear wheel 23 is arranged at the lower end of the rear leg 21, and the second connecting part 22 and the first connecting part 12 are rotatably connected around a first axis A;

a seat support 3, said seat support 3 being rotatably connected to the front support assembly 1 about a second axis B;

a transmission rod 4, one end of the transmission rod 4 is rotatably connected with the front side of the seat supporting member 3 around a third axis C, and the other end of the transmission rod 4 is rotatably connected with the back support assembly 2 around a fourth axis D;

and, when the stroller is moved from the unfolded position to the folded position, the seat support 3 and the rear support assembly 2 are rotated from both sides of the front legs 11 with respect to the front legs 11 to be drawn close to the front legs 11.

The second connecting part 22 on the rear leg 21 of the baby carriage is rotatably connected with the first connecting part 12 on the front leg 11, the seat supporting part 3 is rotatably connected with the front support component 1, in addition, the seat supporting part 3 is rotatably connected with the rear support component 2 through the transmission rod 4, the whole baby carriage has few transmission connecting rods and a simple structure, when the baby carriage is folded, the seat supporting part 3 and the rear support component 2 rotate relative to the front leg 11 from the two sides of the front leg 11 and are close to the front leg 11, and the folding operation is convenient. Fig. 8-11 illustrate the principle process in the process of collapsing the stroller. A child may be seated on the seat support 3.

As shown in fig. 1 to 3, the seat support 3 is provided with a rotating base 53 capable of rotating at least 180 degrees relative to the seat support, the rotating base 53 is provided with an upper stay 51 capable of rotating relative to the rotating base, the upper stay 51 is slidably connected with a hand push rod 52, and the hand push rod 52 may be rotatably connected to the upper stay 51. The arrangement of the hand push rod 52 and the upper stay 51 can be more convenient for pushing the baby carriage, and the rotating seat 53 can rotate at least 180 degrees, so that the front and back directions of the baby carriage seat can be changed. After the swivel seat 53, the upper stay 51 and the handle bar 52 are provided on the seat support 3, a child can sit on the swivel seat 53. During reversing operation, the upper support rod 51, the hand push rod 52 and the rotating seat 53 only need to be integrally rotated, and operation is very convenient and fast. When it is desired to fold the stroller, it is also only necessary to unlock the latch mechanism 7, then rotate the folding upper strut 51 and cause the upper strut 51 to fold onto the swivel seat 53, and then to bring the seat support 3, swivel seat 4, upper strut 51 and rear support assembly 2 together onto the front leg 11.

As shown in fig. 3 and 15, a locking mechanism 6 for locking the position of the rotating seat 53 is provided between the rotating seat 53 and the seat support 3, a locking mechanism 7 for locking the position of the upper stay 51 is provided between the upper stay 51 and the rotating seat 53, and a transmission member 8 capable of driving the locking mechanism 6 to unlock when the locking mechanism 7 is unlocked is provided between the locking mechanism 7 and the locking mechanism 6. When the reversing of the baby carriage is needed, only the latch mechanism 7 needs to be operated to unlock, and when the latch mechanism 7 is unlocked, the transmission piece 8 drives the locking mechanism 6 to unlock, so that the rotary seat 53 can be rotated and reversed. The locking mechanism 6 can be unlocked in a linkage manner only by unlocking the locking mechanism 7 in the whole reversing operation, and the operation is very convenient and fast.

As shown in fig. 3 and 15, the locking mechanism 6 includes a locking hole 61 provided in the seat support 3, the rotary base 53 is provided with a locking groove 62, a space defined between the rotary base 53 and the seat support 3 is provided with a first spline 63 which is movable therein and simultaneously engaged with the locking hole 61 and the locking groove 62, and a first spring 64 is further provided between the rotary base 53 and the first spline 63. When the locking mechanism 6 is locked, the first spline 63 is engaged with the locking hole 61 and the locking groove 62, thereby preventing the swivel base 53 from rotating relative to the seat support 3, and when it is necessary to reverse the rotation of the swivel base 53, it is only necessary to disengage the first spline 63 from the locking hole 61.

As shown in fig. 15, the locking mechanism 7 includes an inner locking seat 71 disposed on the rotating seat 53 and an outer locking seat 72 disposed at the lower end of the upper supporting rod 51, the inner locking seat 71 and the outer locking seat 72 are respectively provided with a locking groove along the circumferential direction, the inner locking seat 71 and the outer locking seat 72 are respectively provided with a second spline 74 capable of sliding transversely therein and being simultaneously engaged with the locking grooves of the inner locking seat 71 and the outer locking seat 72, a second spring 75 is further disposed between the inner locking seat 71 and the second spline 74, and a rotating block 76 capable of pushing the second spline 74 to be disengaged from the locking groove of the outer locking seat 72 when rotating is disposed between the second spline 74 and the outer locking seat 72. When the locking mechanism 7 needs to be unlocked, the rotating block 76 is rotated, the rotating block 76 pushes the second spline 74 to move transversely, the second spline 74 moves transversely to be separated from the locking groove on the outer locking seat 72, and the locking mechanism 7 is unlocked.

As shown in fig. 15, the transmission member 8 includes a transmission bar 81 disposed in the rotary seat 53, one end of the transmission bar 81 is engaged with the second spline 74, the other end is engaged with the first spline 63, and a third spring 82 capable of restoring the transmission bar 81 is disposed between the transmission bar 81 and the rotary seat 53, when the second spline 74 is disengaged from the locking groove 73 of the outer locking seat 72, the second spline 74 pushes the transmission member 8 to slide laterally so that the transmission member 8 pushes the first spline 63 to disengage from the locking hole 61 of the seat support 3. When the second spline 74 moves laterally, the second spline 74 pushes the transmission bar 81, and the transmission bar 81 pushes the first spline 63 to disengage from the locking hole 61 when moving laterally, thereby unlocking the locking mechanism 6. In the present embodiment, the driving bar 81 is provided with a slope 83, and when the driving bar 81 moves laterally, the surface of the slope 83 pushes the surface of the first spline 63, so that the lateral movement of the driving bar 81 is converted into the vertical movement of the first spline 63. As shown in fig. 15, in order to avoid the stroke of the second spline 74 being too long, a pushing block 77 capable of being pushed by the second spline 74 may be disposed between the second spline 74 and the second spring 75, and the driving rod 81 is pushed to move by the pushing block 77. And, can also set up the sliding block 78 between turning block 76 and second spline 74, set up the oblique boss on the turning block 76, set up the oblique slot cooperating with oblique boss on the sliding block 78, when the turning block 76 rotates, the oblique boss pushes the oblique slot on the sliding block 78 and makes the sliding block 78 move, the sliding block 78 pushes the second spline 74 and disengages from the latch groove on the external latch seat 72. The driving member for driving the rotation block 76 to rotate may adopt a conventional rope structure, i.e. a sliding block 79 is provided on the upper stay 51 to slide relative to the upper stay, and a rope is provided between the sliding block 79 and the rotation block 76.

As shown in fig. 4 and 7, the seat support 3 is connected to the first connection 12 about the second axis B and the driving rod 4 is connected to the second connection 22 about the fourth axis D, so that the entire structure is compact and the folding of the stroller is flexible.

The first connecting portion 12 is a shell-shaped structure, the transmission rod 4 is arranged in the first connecting portion 12, and the second connecting portion 22 is embedded in the first connecting portion 12. The driving rod 4 is hidden inside the first connecting portion 12, so that the stroller is compact and can be folded flexibly.

As shown in fig. 7 to 11, the locking device includes a locking hook 91 rotatably connected to the first connecting portion 12, the second connecting portion 22 is provided with a locking groove 92 capable of being engaged with the locking hook 91, the first connecting portion 12 is further provided with a driving assembly 93 for driving the locking hook 91 to be disengaged from the locking groove 92, a fourth spring 94 is further provided between the first connecting portion 12 and the locking hook 91, the driving assembly 93 includes a rotating rod 931 rotatably connected to the first connecting portion 12, an operating portion 932 is provided at one end of the rotating rod 931, a cable 933 capable of pulling the locking hook 91 to be disengaged from the locking groove 92 when the rotating rod 931 rotates is provided between the other end of the rotating rod 931 and the locking hook 91, and a fifth spring 934 is provided between the first connecting portion 12 and the rotating rod 931. When the baby carriage needs to be folded, the locking mechanism 7 is unlocked, the upper stay 51 is enabled to rotate forwards and be folded with the rotating seat 53, then the operating part 932 is pulled, the rotating rod 931 is enabled to rotate, the rotating rod 931 rotates, the locking hook 91 is pulled to rotate through the pull rope 933, the locking hook 91 is separated from the clamping groove 92 on the second connecting part 22, at the moment, the first connecting part 12 is unlocked with the second connecting part 22, the rear leg 21 and the seat support 3 can rotate relative to the front leg 11, and the folding of the whole baby carriage is achieved.

As shown in fig. 5, 6 and 12, the seat support 3 is provided with a protruding protrusion 31, and the rotating rod 931 is provided with a pressing portion 935 that can press the protrusion 31 when the stroller is unfolded and can be disengaged from the protrusion 31 when the locking device is unlocked. In the unfolded state of the stroller, the press-fit portion 935 presses the protruding block 31, further preventing the seat support 3 from rotating relative to the first connecting portion 12, ensuring the stability of the unfolded state of the stroller. When the stroller is folded, the pressing portion 935 is disengaged from the protruding block 31 and presses the protruding block 31 when the rotating rod 931 rotates, and the seat support 3 can be folded with respect to the first connecting portion 12.

As shown in fig. 4, 7, 12 and 13, the first connecting portion 12 is further provided with a moving post 941 capable of moving laterally therein and engaging with the locking hook 91, the first connecting portion 12 is further provided with a moving block 942 exposed and capable of pushing the moving post 941 to disengage from the locking hook 91 when pressed, the first connecting portion 12 is further provided with a sixth spring 943 capable of pushing the moving post 941 to return, the first connecting portion 12 is further provided with a positioning groove 944, the moving block 942 is provided with a seventh spring 945 therein, a positioning member 946 which is pressed by the seventh spring 945 and engaged with the positioning groove 944 is provided between the seventh spring 945 and the positioning groove 944, the moving block 942 is further provided with an inclined boss 947, the rotating rod 931 is provided with a pushing portion 948 which is capable of contacting with the inclined boss 947 to return the pressed moving block 942 when the rotating relative to the first connecting portion 12 to unlock the locking device, a slope 949 which can be pushed by the edge of the locking hook 91 is arranged on the movable column 941. The positioning member 946 is a ball, and the positioning groove 944 is an arc-shaped groove having an arc surface. The provision of the moving block 942 serves as a secondary lock, and the pull cable 933 can pull the locking hook 91 to rotate and disengage from the engagement groove 92 only after the moving block 942 is pressed and the moving post 941 disengages from the locking hook 91, thereby preventing erroneous unlocking due to the erroneous operation of the operation unit 932 and further ensuring safety. Furthermore, after the moving block 942 is pressed, the positioning member 946 snaps into one positioning groove 944 on the first connecting portion 12, so that the position of the moving block 942 is maintained, and further the disengaged state of the moving post 941 and the locking hook 91 is maintained, and at this time, the moving block 942 can be released to release the hand to move the operating portion 932, and when the operating portion 932 is pulled to rotate the rotating rod 931, the rotating rod 931 pulls the locking hook 91 through the cable 933 to disengage from the engaging groove 92, and the pushing portion 948 on the rotating rod 931 during the rotation pushes the inclined boss 947 on the moving block 942 again, so that the moving block 942 is reset, and further the moving post 941 is reset. When the stroller is unfolded again, the edge of the locking hook 91 pushes the slope 949 on the moving post 941, the moving post 941 is pushed to move laterally, and when the locking hook 91 is engaged with the engaging groove 92, the moving post 941 is pushed by the sixth spring 943 to engage with the locking hook 91.

As shown in fig. 14 and 16, the first connecting portion 12 is provided with an arc-shaped groove 121 in which the protruding block 31 can move, and the pressing portion 935 extends into the arc-shaped groove 121 to press the protruding block 31 when the stroller is in the unfolded state. So that the seat support 3 is smoothly and reliably rotated with respect to the first coupling portion 12.

Example 2:

as shown in fig. 16 to 21, embodiment 2 differs from embodiment 1 in that:

the rotatable seat 53 or the front stay 41 is detachably connected with a foldable seat assembly 100. When a child sits in the seat assembly 100 and needs to change the direction of the baby carriage, the latch mechanism 7 is operated to unlock, and the locking mechanism 6 is unlocked, so that the upper support rod 51 and the rotating seat 53 integrally rotate in the horizontal direction, and the change of the direction of the seat assembly 100 can be realized. When the stroller is required to be folded, the seat assembly 100 is folded, the locking member 7 is operated to unlock, the upper stay 51 rotates relative to the rotating seat 53 in the vertical plane, the upper stay 51 can be folded on the rotating seat 53, and then the locking hook 91 and the locking groove 92 are unlocked, so that the upper stay 51, the rotating seat 53, the seat support 3 and the rear support assembly 2 are close to the front leg 11.

Claims (10)

1. A stroller movable from an unfolded position to a folded position after a latch is unlocked, characterized in that: the method comprises the following steps:

the front support assembly (1), the front support assembly (1) comprises front legs (11), the upper ends of the front legs (11) are provided with first connecting parts (12), and the lower ends of the front legs (11) are provided with front wheels (13);

the rear support assembly (2) comprises rear legs (21), the upper ends of the rear legs (21) are provided with second connecting parts (22), the lower ends of the rear legs (21) are provided with rear wheels (23), and the second connecting parts (22) are rotatably connected with the first connecting parts (12) around a first axis (A);

a seat support (3), said seat support (3) being rotatably connected to the front support assembly (1) about a second axis (B);

one end of the transmission rod (4) is rotatably connected with the front side of the seat supporting piece (3) around a third axis (C), and the other end of the transmission rod (4) is rotatably connected with the rear support component (2) around a fourth axis (D);

when the baby carriage moves from the unfolding position to the folding position, the seat supporting piece (3) and the rear supporting component (2) rotate relative to the front legs (11) from two sides of the front legs (11) to be close to the front legs (11).

2. A stroller according to claim 1, wherein: the seat support member (3) on be equipped with can be relative its roating seat (53) of 180 degrees at least, roating seat (53) on be equipped with can be relative its pivoted last vaulting pole (51), last vaulting pole (51) go up rotate or sliding connection have hand push rod (52).

3. A stroller according to claim 2, wherein: the utility model discloses a lock, including roating seat (53) and seat support piece (3), be equipped with between roating seat (53) and be used for locking the locking mechanical system (6) of roating seat (53) position, last vaulting pole (51) and roating seat (53) between be equipped with and be used for locking the kayser mechanism (7) of vaulting pole (51) position, kayser mechanism (7) and locking mechanical system (6) between be equipped with can drive driving medium (8) that locking mechanical system (6) unblock when kayser mechanism (7) unblock.

4. A stroller according to claim 3, wherein: the locking mechanism (6) comprises a locking hole (61) arranged on the seat support piece (3), a locking groove (62) is arranged on the rotating seat (53), a space enclosed by the rotating seat (53) and the seat support piece (3) is internally provided with a first spline (63) which can move in the space and is simultaneously clamped with the locking hole (61) and the locking groove (62), and a first spring (64) is also arranged between the rotating seat (53) and the first spline (63);

the locking mechanism (7) comprises an inner locking seat (71) arranged on the rotating seat (53) and an outer locking seat (72) arranged at the lower end of the upper support rod (51), the inner locking seat (71) and the outer locking seat (72) are respectively provided with a locking groove along the circumferential direction, second splines (74) which can transversely slide in the inner locking seat (71) and can be simultaneously clamped with the locking grooves on the inner locking seat (71) and the outer locking seat (72) are arranged in the inner locking seat (71) and the outer locking seat (72), second springs (75) are further arranged between the inner locking seat (71) and the second splines (74), and rotating blocks (76) capable of pushing the second splines (74) to be separated from the locking grooves on the outer locking seat (72) when rotating are arranged between the second splines (74) and the outer locking seat (72);

the driving medium (8) including establishing drive strip (81) in roating seat (53), drive strip (81) one end and second spline (74) cooperation, the other end and first spline (63) cooperation, and drive strip (81) and roating seat (53) between be equipped with third spring (82) that can make drive strip (81) reset, when second spline (74) and the card lock groove (73) on outer card lock seat (72) break away from, second spline (74) transversely promote driving medium (8) and slide and make driving medium (8) promote locking hole (61) on first spline (63) and seat support piece (3) and break away from.

5. A stroller according to any of claims 1 to 4, wherein: the seat support (3) is connected to the first connection (12) about a second axis (B), and the transmission rod (4) is connected to the second connection (22) about a fourth axis (D).

6. A stroller according to claim 5, wherein: the locking device comprises a locking hook (91) which is rotationally connected with the first connecting part (12), the second connecting part (22) is provided with a clamping groove (92) which can be clamped with the locking hook (91), the first connecting part (12) is also provided with a driving component (93) for driving the locking hook (91) to be separated from the clamping groove (92), a fourth spring (94) is arranged between the first connecting part (12) and the locking hook (91), the driving component (93) comprises a rotating rod (931) which is rotatably connected with the first connecting part (12), an operation part (932) is arranged at one end of the rotating rod (931), a pull cable (933) which can pull the locking hook (91) to be separated from the clamping groove (92) when the rotating rod (931) rotates is arranged between the other end of the rotating rod (931) and the locking hook (91), and a fifth spring (934) is arranged between the first connecting part (12) and the rotating rod (931).

7. A stroller according to claim 6, wherein: the baby carriage is characterized in that the seat support (3) is provided with a convex protruding block (31), and the rotating rod (931) is provided with a pressing part (935) which can press the protruding block (31) when the baby carriage is in an unfolded state and can be separated from the protruding block (31) when the locking device is unlocked.

8. A stroller according to claim 7, wherein: first connecting portion (12) in still be equipped with in it lateral shifting and can with the removal post (941) of locking collude (91) block, first connecting portion (12) on still be equipped with exposed and can promote when being pressed and remove the movable block (942) that post (941) and locking collude (91) and break away from, first connecting portion (12) in still be equipped with and can promote sixth spring (943) that remove post (941) resets, first connecting portion (12) on still be equipped with constant head tank (944), movable block (942) in be equipped with seventh spring (945), seventh spring (945) and constant head tank (944 between be equipped with and can be pushed up by seventh spring (945) and with constant head tank (944) complex locating piece (946), movable block (942) on still be equipped with oblique boss (dwang 947), last be equipped with on its relative first connecting portion (12) rotate and can make locking device when unblock and oblique boss (947) and the touching and make and pressed according to the quilt Push portion (948) that the movable block (942) that presses reset, removal post (941) on be equipped with can be locked collude slope (949) that (91) border was promoted, first connecting portion (12) on be equipped with arc wall (121) that can supply including protruding piece (31) activity, when the bassinet expandes the state, pressfitting portion (935) stretch into arc wall (121) in and push down protruding piece (31).

9. A stroller according to any of claims 1 to 4, wherein: the first connecting portion (12) is of a shell-shaped structure, the transmission rod (4) is arranged in the first connecting portion (12), and the second connecting portion (22) is embedded in the first connecting portion (12).

10. A stroller according to any of claims 2 to 4, wherein: the rotary seat (53) or the front support rod (41) is detachably connected with a foldable seat assembly (100).

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