Baby stroller

Abstract

Front wheels and rear wheels are arranged at the lower end of a stroller frame, a lower connecting part is arranged on the lower portion of the stroller frame, a first seat assembly is detachably connected to the lower connecting part, an upper connecting position and a lower connecting position are arranged on the upper portion of the stroller frame, and a second seat assembly is detachably connected to the upper connecting position or the lower connecting position. The second seat assembly comprises a sliding seat which can slide along the frame and can be connected with the lower connecting position or the upper connecting position after sliding, a second seat framework is connected to the sliding seat, a locking structure is further arranged on the sliding seat, and when the second seat assembly is connected to the upper connecting position, the locking structure is locked. The first seat assembly can be connected to the lower connecting part to enable the stroller to serve as a double stroller, and when the second seat assembly is connected to the lower connecting position, the first seat assembly is separated from the lower connecting part to enable the stroller to serve as a single stroller. The baby carriage can be used for carrying two children and a single child, is safe and reliable when being pushed, and saves labor when being pushed.

Description

[Technical field]

[0001] The utility model relates to a baby stroller. [Background technology]

[0002] Currently, many families have two children, so twin strollers are available on the market, which can push two children at the same time. However, the two seat components of twin strollers currently on the market are generally fixed in position, one at a lower position on the frame, and the other at a higher position on the frame. When a user pushes one child out, if the child is placed in the higher seat component, the center of gravity of the entire stroller will be higher, similar to being top-heavy, and the safety of the stroller will be reduced. If the child is placed in the lower seat component, there is no child in the higher seat component, so the center of gravity of the entire stroller is lower and too forward, and the stroller may tip forward when the child is sitting, and the user will not save effort when pushing the stroller.

[0003] Therefore, the present invention is just produced based on the above shortcomings. [Contents of the utility model]

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a child stroller that can carry both two children and a single child. The child stroller has a simple structure, is safe and reliable when pushed, and is labor-saving to push.

[0005] The utility model is realized by the following technical solutions:

[0006] A child stroller comprises a frame 1, wherein the lower end of the frame 1 is provided with a front wheel 1a and a rear wheel 1b, the lower part of the frame 1 is provided with a lower connecting part 2, and the lower connecting part 2 is detachably connected to a first seat assembly 3, the upper part of the frame 1 is provided with an upper connecting position 4 and a lower connecting position 5 lower than the upper connecting position 4, the child stroller further comprises a second seat assembly 6 which can be detachably connected to the upper connecting position 4 or the lower connecting position 5, the second seat assembly 6 comprises a seat assembly which can slide along the frame 1 and can be connected to the lower connecting position 5 or the upper connecting position 5 after sliding. A sliding seat 61 connected to the connecting position 4 is connected to a second seat frame 62. The sliding seat 61 is also provided with a locking structure 7 capable of locking it to the upper connecting position 4 or the lower connecting position 5. When the second seat assembly 6 is connected to the upper connecting position 4, the first seat assembly 3 can be connected to the lower connecting portion 2 to make the child stroller a double stroller, and when the second seat assembly 6 is connected to the lower connecting position 5, the first seat assembly 3 is detached from the lower connecting portion 2 to make the child stroller a single stroller.

[0007] The second seat frame 62 is detachably connected to the sliding seat 61 .

[0008] An intermediate connection position 8 detachably connected to the sliding seat 61 is also provided between the upper connection position 4 and the lower connection position 5. When the second seat assembly 6 is connected to the intermediate connection position 8, the first seat assembly 3 is detached from the lower connection portion 2.

[0009] The upper connecting position 4 and the lower connecting position 5 are connecting holes arranged on the frame 1. The locking structure 7 includes a block 71 that can move laterally in the sliding seat 61 and engage or disengage with the connecting hole. The sliding seat 61 is also connected to a driving block 72 that can slide relative to it and can drive the block 71 to disengage from the connecting hole when sliding. The second seat frame 62 is provided with a driving member 73 that can drive the driving block 72 to slide. A first reset spring 74 that can push the block 71 to return to its original position is provided between the sliding seat 61 and the block 71.

[0010] The sliding seat 61 is provided with a second plug-in slot 611, the second seat frame 62 includes a second plug-in seat 621 which can be detachably connected to the second plug-in slot 611, the second plug-in seat 621 is connected to a second seat frame 622, the driving block 72 includes a block body 721 slidably arranged at the lower part of the sliding seat 61, the block body 721 is provided with a connecting shaft 722 which extends upward into the second plug-in slot 611, the driving member 73 includes a moving block 731 which can move in the second plug-in seat 621 and can be connected to the connecting shaft 722 when the second plug-in seat 621 is plugged into the second plug-in slot 611, the second seat frame 622 is provided with a pull button 732 which can move relative to the second plug-in seat, a pull rope 733 is provided between the pull button 732 and the moving block 731, and the pull rope 733 can pull the moving block 731 to move when the pull button 732 is active, and a second reset spring 734 is provided between the moving block 731 and the second plug-in seat 621, which can push the moving block 731 to reset.

[0011] The moving block 731 is provided with a clamping hole 735 which can be sleeved on the connecting shaft 722 when the second plug socket 621 is plugged into the second plug slot 611 .

[0012] The block 721 is provided with a pressing portion 723 exposed to the sliding seat 61 , the block 721 is provided with a first inclined surface 724 , and the clamping block 71 is provided with a second inclined surface 711 that can be pushed by the first inclined surface 724 to move the clamping block 71 .

[0013] The sliding seat 61 is provided with a locking hole 91, and the second plug-in seat 621 is provided with a locking block 92 which can engage with the locking hole 91 when the second plug-in slot 611 is connected to the second plug-in seat 611. The second plug-in seat 621 is provided with an exposed operating block 93 which can push the locking block 92 to disengage from the locking hole 91 when sliding relative to the second plug-in seat 621. A third reset spring 94 is provided between the second plug-in seat 621 and the locking block 92 for pushing the locking block 92 to return to its original position.

[0014] The first seat assembly 3 includes a connecting seat 31 that can be detachably connected to the lower connecting part 2, and a first seat frame 32 is detachably connected to the connecting seat 31. The lower connecting part 2 includes a connecting body 21 arranged on the frame 1, and the connecting seat 31 is provided with a connecting groove 312 with one end opening and enabling the connecting seat 31 to be slidably mounted on the connecting body 21. A rotating rod 301 that can rotate relative to the connecting seat 31 is provided in the connecting seat 31, and a clamping groove 302 is provided on the rotating rod 301. The connecting body 21 is provided with a clamping portion 2 that can be engaged with or disengaged from the clamping groove 302 when the rotating rod 301 rotates. 2. A fourth reset spring 303 is provided between the connecting seat 31 and the rotating rod 301, which can push the rotating rod 301 to rotate and reset. The connecting seat 31 is also connected with an exposed button 304 which can slide relative to it and push the rotating rod 301 to rotate. A fifth reset spring 305 is also provided between the button 304 and the connecting seat 31, which can push the button 304 to reset. The first seat frame 32 includes a first plug-in seat 321 and a first seat frame 322 connected to the first plug-in seat 321. The connecting seat 31 is provided with a first plug-in slot 311 for the first plug-in seat 321 to be detachably plugged in.

[0015] The frame 1 includes a front leg 11, the upper end of the front leg 11 is rotatably connected to a push rod assembly 12, the push rod assembly 12 is rotatably connected to a rear leg 13 near its lower end, a linkage rod 14 is provided on the front leg 11 near its upper end and between the middle of the rear leg 13 and the two are hingedly connected, the front wheel 1a is arranged at the lower end of the front leg 11, the rear wheel 1b is arranged at the lower end of the rear leg 13, the lower connecting part 2 is arranged on the front leg 11, the upper connecting position 4 and the lower connecting position 5 are arranged on the push rod assembly 12, a locking device capable of locking the front leg 11 and the push rod assembly 12 is provided between the front leg 11 and the push rod assembly 12, and an operating switch 15 capable of operating the locking device to unlock is provided on the push rod assembly 12.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] 1. The first seat assembly of the utility model can be detachably connected to the lower connection part of the lower part of the frame, and the second seat assembly can be selectively connected to the upper connection position or the lower connection position of the upper part of the frame. Therefore, when the second seat assembly is connected to the upper connection position at a higher position, the lower part of the frame has enough space to connect the first seat assembly. At this time, the child stroller can push two children at the same time and be used as a double stroller. In addition, there are children in the first seat assembly and the second seat assembly, so that the center of gravity of the entire child stroller is still in a suitable position, and the safety is guaranteed. When only one child needs to be pushed, the first seat assembly is separated from the lower connection part of the lower part of the frame, and the second seat assembly is connected from the upper connection position to the lower connection position. At this time, there is only the second seat assembly on the frame, and the height of the second seat assembly is reduced. The center of gravity of the entire child stroller is in a suitable position, the safety is good, and the user can push it with less effort. Moreover, when converting between a double stroller and a single stroller, one only needs to unlock the locking structure, then slide the sliding seat to change the height position of the second seat assembly, and then remove or install the first seat assembly as needed. The position of the second seat assembly can be adjusted by sliding, and the adjustment operation is convenient and quick.

[0018] 2. The utility model has a simple structure, good safety, and is labor-saving to implement. The conversion between the double-person mode and the single-person mode is also very convenient and quick, and is suitable for popularization and application.

Brief Description of the Drawings

[0019] Figure 1 It is a three-dimensional diagram of the utility model when used as a double stroller;

[0020] Figure 2 It is a side view of the utility model when used as a double stroller;

[0021] Figure 3 It is a side view of the utility model when used as a single-person stroller;

[0022] Figure 4 It is a three-dimensional diagram of the utility model when used as a single-person stroller;

[0023] Figure 5 It is a stereoscopic diagram when the utility model is used as a single-person stroller and the second seat frame is removed.

[0024] Figure 6 It is a three-dimensional diagram when the utility model is used as a single-person stroller and the second seat assembly is removed.

[0025] Figure 7 It is a side view of the basket installed on the frame of the utility model;

[0026] Figure 8 It is one of the three-dimensional diagrams of the components of the utility model;

[0027] Fig. 9 It is one of the exploded views of the components of the utility model;

[0028] Fig.10 yes Fig. 9 Magnified view at A in the middle;

[0029] Fig.11 This is the second exploded view of the components of the utility model;

[0030] Fig.12 yes Fig.11 Magnified view at B in the middle;

[0031] Fig.13 is a three-dimensional diagram of the sliding seat;

[0032] Fig.14 This is the third exploded view of the components of the utility model;

[0033] Fig.15 It is a partial cross-sectional view of the utility model;

[0034] Fig.16 It is a three-dimensional diagram of the connecting seat. [Specific implementation method]

[0035] The utility model is further described below in conjunction with the accompanying drawings:

[0036] like Figures 1 to 6 , Figures 8 to 10As shown, a child stroller includes a frame 1, wherein the lower end of the frame 1 is provided with a front wheel 1a and a rear wheel 1b, the lower part of the frame 1 is provided with a lower connecting part 2, and the lower connecting part 2 is detachably connected to a first seat assembly 3, the upper part of the frame 1 is provided with an upper connecting position 4 and a lower connecting position 5 lower than the upper connecting position 4, the child stroller also includes a second seat assembly 6 that can be detachably connected to the upper connecting position 4 or the lower connecting position 5, and the second seat assembly 6 includes a seat assembly that can slide along the frame 1 and can be connected to the lower connecting position 5 or the upper connecting position after sliding. The sliding seat 61 connected to the connection position 4 has a second seat frame 62 detachably connected to the sliding seat 61. The sliding seat 61 is also provided with a locking structure 7 capable of locking it to the upper connection position 4 or the lower connection position 5. When the second seat assembly 6 is connected to the upper connection position 4, the first seat assembly 3 can be connected to the lower connection portion 2 to make the child stroller a double stroller, and when the second seat assembly 6 is connected to the lower connection position 5, the first seat assembly 3 is separated from the lower connection portion 2 to make the child stroller a single stroller. Therefore, when the second seat assembly 6 is connected to the upper connection position 4 at a higher position, the lower part of the frame 1 has enough space for connecting the first seat assembly 3. At this time, the child stroller can push two children at the same time and be used as a double stroller. Moreover, there are children in both the first seat assembly 3 and the second seat assembly 6, so that the center of gravity of the entire child stroller is still in a suitable position, and the safety is guaranteed. When only one child is needed, the first seat assembly 3 is separated from the lower connection portion 2 at the bottom of the frame 1, and the second seat assembly 6 is moved from the upper connection position 4 to the lower connection position 5. At this time, only the second seat assembly 6 is on the frame 1, and the height of the second seat assembly 6 is reduced. The center of gravity of the entire child stroller is in a suitable position, the safety is good, and the user can push the stroller with less effort. Moreover, when the child stroller is converted between a double stroller and a single stroller, it is only necessary to unlock the locking structure 7, and then slide the sliding seat 61 to change the height of the second seat assembly 6, and then remove or install the first seat assembly 3 as needed. The position of the second seat assembly 6 can be adjusted by sliding, and the adjustment operation is convenient and quick.

[0037] like Figure 5 and Figure 6 As shown, an intermediate connection position 8 detachably connected to the sliding seat 61 is provided between the upper connection position 4 and the lower connection position 5. When the second seat assembly 6 is connected to the intermediate connection position 8, the first seat assembly 3 is separated from the lower connection portion 2. When the second seat assembly 6 is connected to the intermediate connection position 8, the child stroller is still used as a single-person stroller, but the second seat assembly 6 is raised to a certain extent, so that the child riding therein can have a high view of the landscape, and the user can adjust it according to his or her own needs.

[0038] like Fig.10 and Fig.13As shown, the push rod assembly 12 is provided with a slide rail 121, the upper connecting position 4, the middle connecting position 8 and the lower connecting position 5 are arranged on the slide rail 121, and the sliding seat 61 is provided with a slide groove 612 that cooperates with the slide rail 121, so that the sliding seat 61 slides smoothly.

[0039] like Figure 6 , Figures 8 to 10 As shown, the upper connection position 4, the middle connection position and the lower connection position 5 are connection holes provided on the vehicle frame 1, the locking structure 7 comprises a block 71 which can move transversely in the sliding seat 61 and engage or disengage with the connection hole, the sliding seat 61 is also connected with a driving block 72 which can slide relative to it and can drive the block 71 to disengage from the connection hole when sliding, the second seat frame 62 is provided with a driving member 73 which can drive the driving block 72 to slide, and a first reset spring 74 which can push the block 71 to reset is provided between the sliding seat 61 and the block 71. When the position of the second seat assembly 6 needs to be adjusted, the driving block 72 is slid by the driving member 73, and the driving block 72 drives the block 71 to disengage from the connection hole, and the locking structure 7 is unlocked at this time, and the first reset spring 74 is compressed at this time, and when the sliding seat 61 slides to the required position, the first reset spring 74 stretches and resets, pushing the block 71 to engage with the corresponding connection hole again.

[0040] like Figure 4 , Figures 8 to 12As shown, the sliding seat 61 is provided with a second plug-in slot 611, the second seat frame 62 includes a second plug-in seat 621 that can be detachably connected to the second plug-in slot 611, the second plug-in seat 621 is connected to a second seat frame 622, and a flexible seat cover (not shown in the figure) can be connected to the second seat frame 622, the driving block 72 includes a block body 721 slidably arranged at the lower part of the sliding seat 61, the block body 721 is provided with a connecting shaft 722 that extends upward into the second plug-in slot 611, and the driving Component 73 includes a moving block 731 that can move in the second socket 621 and can be connected to the connecting shaft 722 when the second socket 621 is plugged into the second socket 611. The second seat frame 622 is provided with a lever 732 that can move relative to it. A pull rope 733 is provided between the lever 732 and the moving block 731, which can pull the moving block 731 to move when the lever 732 moves. A second reset spring 734 is provided between the moving block 731 and the second socket 621, which can push the moving block 731 to return to its original position. When the position of the second seat assembly 6 needs to be adjusted, the pull button 732 on the second seat frame 622 is pulled, and the moving block 731 is pulled by the pull rope 733 to move. Since the connecting shaft 722 is connected to the moving block 731 when the second plug seat 621 is plugged into the second plug slot 611, when the moving block 731 moves, the driving block 72 can be driven to move together, and the driving block 72 can push the clamping block 71 to be separated from the corresponding connecting hole. Therefore, only the pull button 732 needs to be pulled to realize the separation of the clamping block 71 from the corresponding connecting hole, and the operation is very convenient and quick. Moreover, when the first seat frame 62 is disassembled from the sliding seat 61, the moving block 731 will be separated from the connecting shaft 722.

[0041] like Fig.12 As shown, the moving block 731 is provided with a snap-in hole 735 which can be sleeved on the connecting shaft 722 when the second plug-in seat 621 is plugged into the second plug-in slot 611. Therefore, when the second plug-in seat 621 is plugged into the second plug-in slot 611, the snap-in hole 735 is connected to the connecting shaft 722, and the movement of the moving block 731 can drive the driving block 72 to move. When the second plug-in seat 621 is disengaged from the second plug-in slot 611, the connecting shaft 722 withdraws from the snap-in hole 735. Therefore, as long as the second seat frame 62 is connected to the sliding seat 61, it can be unlocked by operating the pull button 732. At this time, the user can operate the pull button 732 with one hand and hold the second seat frame 62 with the other hand to directly slide the second seat assembly 6. The operation is very convenient. Figure 8 and Fig.12 As shown, the block 721 is provided with a pressing portion 723 exposed to the sliding seat 61. Therefore, when the sliding seat 61 is not connected to the second seat frame 62, the driving block 72 can be moved by pushing the pressing portion 723 to achieve unlocking. For example, Figure 7As shown, when a carrier 200 for a very small baby to lie flat is connected to the sliding seat 61, even if there is no operating mechanism on the carrier 200 to operate the locking structure 7 to unlock, it can be unlocked by directly pushing the pressing portion 723.

[0042] like Fig.10 As shown, the block 721 is provided with a first inclined surface 724, and the block 71 is provided with a second inclined surface 711 which can be pushed by the first inclined surface 724 to move the block 71. Through the cooperation of the first inclined surface 724 and the second inclined surface 711, the block 721 can push the block 71 to move when it moves, thereby achieving unlocking.

[0043] like Figures 11 to 13 As shown, the sliding seat 61 is provided with a locking hole 91, the second plug seat 621 is provided with a locking block 92 that can engage with the locking hole 91 when it is connected to the second plug slot 611, the second plug seat 621 is provided with an exposed operating block 93 that can push the locking block 92 to disengage from the locking hole 91 when sliding relative to the second plug seat 621, and a third reset spring 94 that pushes the locking block 92 to reset is provided between the second plug seat 621 and the locking block 92. By operating the operating block 93, the locking block 92 can be pushed to disengage from the locking hole 91, so that the second plug seat 621 can be disengaged from the second plug slot 611, and the second seat frame 62 can be disassembled. The operating block 93 and the locking block 92 can also be used to transmit in a similar manner to the first inclined surface 724 and the second inclined surface 711.

[0044] like Figure 5 , Figures 14 to 16As shown, the first seat assembly 3 includes a connecting seat 31 that can be detachably connected to the lower connecting part 2, and the connecting seat 31 is detachably connected to the first seat frame 32. The lower connecting part 2 includes a connecting body 21 arranged on the frame 1, and the connecting seat 31 is provided with a connecting groove 312 with one end opening and enabling the connecting seat 31 to be slidably mounted on the connecting body 21. The connecting seat 31 is provided with a rotating rod 301 that can rotate relative to the rotating rod 301, and the rotating rod 301 is provided with a clamping groove 302. The connecting body 21 is provided with a clamping portion 22 that can be engaged with or disengaged from the clamping groove 302 when the rotating rod 301 rotates. The connecting seat 31 and the rotating rod 301 are connected to each other. A fourth reset spring 303 is provided between the connecting seat 31 and the connecting seat 31, which can push the rotating rod 301 to rotate and reset. A button 304 is also connected to the connecting seat 31, which is exposed and can slide relative to the connecting seat 31 to push the rotating rod 301 to rotate. A fifth reset spring 305 is also provided between the button 304 and the connecting seat 31, which can push the button 304 to reset. The first seat frame 32 includes a first plug-in seat 321 and a first seat frame 322 connected to the first plug-in seat 321. A flexible seat cover (not shown in the figure) can be connected to the first seat frame 322. The connecting seat 31 is provided with a first plug-in slot 311 for the first plug-in seat 321 to be detachably plugged. When the first seat assembly 3 needs to be disassembled, the button 304 is pressed, and the button 304 pushes the rotating rod 301 to rotate, and the clamping slot 302 on the rotating rod 301 is disengaged from the clamping portion 22 on the connecting body 21. At this time, the connecting seat 31 can be slid upward to disassemble the first seat assembly 3. When the connection base 31 needs to be installed on the lower connection part 2 again, the connection groove 312 only needs to be aligned with the connection body 21 and slide downward, and the engaging groove 302 will engage with the engaging part 22 again. In this embodiment, the plug-in locking between the first plug-in base 321 and the connection base 31 can adopt a similar locking structure between the second plug-in base 621 and the sliding base 61, which will not be described again. Figure 7 As shown, for a very small baby who cannot sit up alone, the carrier 200 can be connected to the connecting seat 31 , and the baby can lie flat in the carrier 200 .

[0045] As shown in the picture Figure 5As shown, the frame 1 includes a front leg 11, the upper end of the front leg 11 is rotatably connected to a push rod assembly 12, the push rod assembly 12 is rotatably connected to a rear leg 13 near its lower end, and a linkage rod 14 is provided between the front leg 11 and the middle of the rear leg 13, which is hinged to the two legs. Therefore, the frame 1 is a four-link structure, and when the child stroller is not in use, it can be folded to reduce the occupied space. The front wheel 1a is arranged at the lower end of the front leg 11, the rear wheel 1b is arranged at the lower end of the rear leg 13, the lower connecting part 2 is arranged on the front leg 11, the slide rail 121 is arranged on the push rod assembly 12, a locking device capable of locking the front leg 11 and the push rod assembly 12 is provided between the front leg 11 and the push rod assembly 12, and an operating switch 15 capable of operating the locking device to unlock is provided on the push rod assembly 12. The locking device can adopt a transmission gear tooth groove locking structure, which will not be repeated here.

[0046] The embodiment is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiment, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the present purpose.

Claims

1. A baby stroller, characterized in that: The stroller comprises a frame (1), wherein the lower end of the frame (1) is provided with a front wheel (1a) and a rear wheel (1b), the lower part of the frame (1) is provided with a lower connecting part (2), and the lower connecting part (2) is detachably connected to a first seat assembly (3), the upper part of the frame (1) is provided with an upper connecting position (4) and a lower connecting position (5) lower than the upper connecting position (4), the stroller further comprises a second seat assembly (6) which can be detachably connected to the upper connecting position (4) or the lower connecting position (5), the second seat assembly (6) comprising a seat assembly (6) which can slide along the frame (1) and can be connected to the lower connecting position (5) or the upper connecting position after sliding. The sliding seat (61) is connected to the upper connection position (4), the sliding seat (61) is connected to a second seat frame (62), and the sliding seat (61) is also provided with a locking structure (7) capable of locking it at the upper connection position (4) or the lower connection position (5). When the second seat assembly (6) is connected to the upper connection position (4), the first seat assembly (3) can be connected to the lower connection portion (2) so that the child stroller can be used as a double stroller, and when the second seat assembly (6) is connected to the lower connection position (5), the first seat assembly (3) is detached from the lower connection portion (2) so that the child stroller can be used as a single stroller.

2. The baby stroller according to claim 1, characterized in that: The second seat frame (62) is detachably connected to the sliding seat (61).

3. The stroller according to claim 2, characterized in that: An intermediate connection position (8) which can be detachably connected to the sliding seat (61) is also provided between the upper connection position (4) and the lower connection position (5). When the second seat assembly (6) is connected to the intermediate connection position (8), the first seat assembly (3) is detached from the lower connection portion (2).

4. The baby stroller according to claim 2 or 3, characterized in that: The upper connection position (4) and the lower connection position (5) are connection holes provided on the vehicle frame (1); the locking structure (7) comprises a block (71) which can move laterally in the sliding seat (61) and engage with or disengage from the connection hole; the sliding seat (61) is also connected to a driving block (72) which can slide relative to the sliding seat and can drive the block (71) to disengage from the connection hole when sliding; the second seat frame (62) is provided with a driving member (73) which can drive the driving block (72) to slide; and a first reset spring (74) which can push the block (71) to reset is provided between the sliding seat (61) and the block (71).

5. The stroller according to claim 4, characterized in that: The sliding seat (61) is provided with a second plug-in slot (611), the second seat frame (62) includes a second plug-in seat (621) that can be detachably connected to the second plug-in slot (611), the second plug-in seat (621) is connected to a second seat frame (622), the driving block (72) includes a block body (721) slidably arranged at the lower part of the sliding seat (61), the block body (721) is provided with a connecting shaft (722) that extends upward into the second plug-in slot (611), and the driving member (73) includes a second plug-in seat (621) that can be detachably connected to the second plug-in slot (611), the second seat frame (622) is connected to the second plug-in seat (621), the driving block (72) includes a block body (721) that is slidably arranged at the lower part of the sliding seat (61), the block body (721) is provided with a connecting shaft (722) that extends upward into the second plug-in slot (611), and the driving member (73) includes a connecting shaft (722) that can be detachably connected to the second plug-in seat (621) A movable block (731) is movable inside and can be connected to the connecting shaft (722) when the second plug-in seat (621) is plugged into the second plug-in slot (611); a pull button (732) that can move relative to the second seat frame (622); a pull rope (733) that can pull the movable block (731) to move when the pull button (732) moves is provided between the pull button (732) and the movable block (731); and a second reset spring (734) that can push the movable block (731) to reset is provided between the movable block (731) and the second plug-in seat (621).

6. The stroller according to claim 5, characterized in that: The moving block (731) is provided with a clamping hole (735) which can be sleeved on the connecting shaft (722) when the second plug-in seat (621) is plugged into the second plug-in slot (611).

7. The baby stroller according to claim 5, characterized in that: The block (721) is provided with a pressing portion (723) exposed to the sliding seat (61), the block (721) is provided with a first inclined surface (724), and the clamping block (71) is provided with a second inclined surface (711) that can be pushed by the first inclined surface (724) to move the clamping block (71).

8. The stroller according to claim 5, characterized in that: The sliding seat (61) is provided with a locking hole (91), the second plug-in seat (621) is provided with a locking block (92) which can engage with the locking hole (91) when the second plug-in seat (621) is connected to the second plug-in slot (611), the second plug-in seat (621) is provided with an exposed operating block (93) which can push the locking block (92) to disengage from the locking hole (91) when sliding relative to the second plug-in seat (621), and a third reset spring (94) is provided between the second plug-in seat (621) and the locking block (92) for pushing the locking block (92) to reset.

9. The baby stroller according to claim 1, characterized in that: The first seat assembly (3) comprises a connecting seat (31) which can be detachably connected to the lower connecting part (2); the connecting seat (31) is detachably connected to a first seat frame (32); the lower connecting part (2) comprises a connecting body (21) arranged on the frame (1); the connecting seat (31) is provided with a connecting groove (312) with an opening at one end and enabling the connecting seat (31) to be slidably mounted on the connecting body (21); the connecting seat (31) is provided with a rotating rod (301) which can rotate relative to the connecting rod; the rotating rod (301) is provided with a clamping groove (302); the connecting body (21) is provided with a clamping portion (312) which can be engaged with or disengaged from the clamping groove (302) when the rotating rod (301) rotates. 22), a fourth reset spring (303) is provided between the connecting seat (31) and the rotating rod (301) for pushing the rotating rod (301) to rotate and reset, the connecting seat (31) is also connected with an exposed button (304) which can slide relative to it and push the rotating rod (301) to rotate, a fifth reset spring (305) is also provided between the button (304) and the connecting seat (31) for pushing the button (304) to reset, the first seat frame (32) includes a first plug-in seat (321) and a first seat frame (322) connected to the first plug-in seat (321), and the connecting seat (31) is provided with a first plug-in slot (311) for the first plug-in seat (321) to be detachably plugged in.

10. The baby stroller according to claim 1, characterized in that: The frame (1) comprises a front leg (11), the upper end of the front leg (11) is rotatably connected to a push rod assembly (12), the push rod assembly (12) is rotatably connected to a rear leg (13) near its lower end, a linkage rod (14) is provided on the front leg (11) near its upper end and between the middle of the rear leg (13) and the two are hingedly connected, the front wheel (1a) is arranged at the lower end of the front leg (11), the rear wheel (1b) is arranged at the lower end of the rear leg (13), the lower connecting part (2) is arranged on the front leg (11), the upper connecting position (4) and the lower connecting position (5) are arranged on the push rod assembly (12), a locking device capable of locking the front leg (11) and the push rod assembly (12) is provided between the front leg (11) and the push rod assembly (12), and an operating switch (15) capable of operating the locking device to unlock is provided on the push rod assembly (12).

Images