A baby stroller

Abstract

The present invention discloses a baby stroller, which includes a frame assembly, a front foot assembly and a rear foot assembly. The frame assembly is respectively connected to the upper ends of the front foot assembly and the rear foot assembly. It also includes at least one seat frame assembly and at least one connecting bracket. A first fixing portion is provided on the frame assembly, a first mounting portion is provided on the seat frame assembly, and a second mounting portion and a second fixing portion are respectively provided on the connecting bracket. The first mounting portion is cooperatively connected with the first fixing portion to directly mount the seat frame assembly on the frame assembly, and / or after the second mounting portion is cooperatively connected with the first fixing portion, the first mounting portion is cooperatively connected with the second fixing portion to mount the seat frame assembly on the frame assembly through the connecting bracket. Its structure is simple, which can meet the user's need to adjust the positions of multiple seat frames according to actual requirements, and further facilitate the communication between the mother and the baby.

Description

Technical Field

[0001] The present invention relates to the technical field of baby strollers, and in particular to a baby carriage. Background Art

[0002] With the improvement of living standards, baby strollers have become essential tools for little babies. Placing a little baby in the stroller and pushing it by an adult can not only greatly facilitate the care of the adults, but also make the little baby more comfortable and safer.

[0003] In the related art, since most twin baby strollers are only limited to widening the body and the seat, so that two infants can sit side by side. In this way, the twin baby stroller is larger in volume than the single baby stroller, which increases the volume of the body, increases the weight of the stroller, and is clumsy and inconvenient to use. Therefore, the existing twin baby strollers all have problems such as complex structure, too large size, being not conducive to mother-infant communication, and the seat being fixed and unable to be switched, which bring some potential troubles to daily life. Summary of the Invention

[0004] The present invention aims to solve at least one of the problems existing in the related art to some extent. For this purpose, the present invention provides a baby carriage, which has a simple structure, can meet the user's need to adjust the positions of multiple seat frames according to actual needs, and further facilitates mother-infant communication.

[0005] The above object is achieved by the following technical solutions:

[0006] A baby carriage, which includes a frame assembly, a front foot assembly and a rear foot assembly, wherein the frame assembly is respectively connected to the upper ends of the front foot assembly and the rear foot assembly, and further includes at least one seat frame assembly and at least one connecting bracket. A first fixing portion is provided on the frame assembly, a first mounting portion is provided on the seat frame assembly, and a second mounting portion and a second fixing portion are respectively provided on the connecting bracket. The first mounting portion is cooperatively connected with the first fixing portion to directly mount the seat frame assembly on the frame assembly, and / or after the second mounting portion is cooperatively connected with the first fixing portion, the first mounting portion is cooperatively connected with the second fixing portion to mount the seat frame assembly on the frame assembly through the connecting bracket.

[0007] In some embodiments, the rear foot assembly includes a rear foot bracket connected to the frame assembly, a left rear foot and a right rear foot, wherein the rear foot bracket is respectively connected to the left rear foot and the right rear foot. A first connecting portion is provided on the rear foot bracket, and a second connecting portion is provided on the connecting bracket. The first connecting portion is cooperatively connected with the second connecting portion to mount the connecting bracket at a position between the left rear foot and the right rear foot.

[0008] In some embodiments, when the first connecting portion is cooperatively connected with the second connecting portion, the second fixing portion is disposed at a middle position of the connecting bracket, and the second fixing portion is cooperatively connected with the first mounting portion so that the seat frame assembly is mounted at a position between the left rear foot and the right rear foot through the connecting bracket.

[0009] In some embodiments, the rear foot bracket has a left rear foot bracket and a right rear foot bracket. The upper end of the left rear foot bracket is connected to the vehicle frame assembly, and the lower end thereof is connected to the left rear foot. The upper end of the right rear foot bracket is connected to the vehicle frame assembly, and the lower end thereof is connected to the right rear foot. Concave cavities are respectively recessed on opposite side surfaces of the left rear foot bracket and the right rear foot bracket to form the first connecting portion. Positioning members are disposed in the concave cavities. The second connecting portions are respectively disposed at two ends of the connecting bracket. The second connecting portion includes a locking member and an unlocking button for unlocking the locking member. The locking member is cooperatively connected with the positioning member to clamp two ends of the connecting bracket in the concave cavities.

[0010] In some embodiments, when the second mounting portion is cooperatively connected with the first fixing portion, the second fixing portions are respectively disposed at two ends of the connecting bracket, and the number of seat frame assemblies is two. The first mounting portions of the two seat frame assemblies are respectively cooperatively connected with the two second fixing portions so that the two seat frame assemblies are respectively mounted at two ends of the vehicle frame assembly through the connecting bracket.

[0011] In some embodiments, the first fixing portion has a first jack, a first locking member is disposed on the first jack, and a first unlocking member for unlocking the first locking member is disposed outside the first jack. The first mounting portion has a first insertion rod that is cooperatively connected with the first jack. A first positioning groove is recessed on a side wall of the first insertion rod. The first locking member is cooperatively connected with the first positioning groove to limit the vertical movement of the seat frame assembly.

[0012] In some embodiments, a first boss is formed to protrude upward on the vehicle frame assembly. An inlet of the first jack is disposed at a central position of the first boss. A first limiting block extends outward from a side wall of the first boss, and the first limiting blocks are circumferentially spaced apart along the first boss. A first mounting cavity is defined to extend downward on a bottom wall of the seat frame assembly. The first insertion rod is inserted into the first mounting cavity. First clamping blocks that are staggered with the first limiting blocks are spaced apart on an inner side wall of the first mounting cavity. The first clamping blocks are clamped with the first limiting blocks to limit the circumferential movement of the seat frame assembly.

[0013] In some embodiments, the second mounting portion extends downward from the bottom wall of the connecting bracket to define a second mounting cavity. Second clamping blocks staggered from the first limiting block are arranged at intervals on the inner side wall of the second mounting cavity. The first limiting block and the second clamping blocks are clamped with each other to limit the circumferential movement of the connecting bracket. A second inserting rod matingly connected with the first inserting hole is arranged in the second mounting cavity. A second positioning groove is recessed in the side wall of the second inserting rod. The second positioning groove is matingly connected with the first locking member to limit the vertical movement of the connecting bracket.

[0014] In some embodiments, the second fixing portion protrudes upward from the top wall of the connecting bracket to form a second boss. Second limiting blocks extending outward are arranged on the side wall of the second boss and are circumferentially spaced along the second boss. The second limiting blocks and the first clamping blocks are clamped with each other to limit the circumferential movement of the seat frame assembly. A second inserting hole matingly connected with the first inserting rod is arranged at the center position of the second boss. A second locking member is arranged on the second inserting hole. The second locking member is matingly connected with the first positioning groove to limit the vertical movement of the seat frame assembly. A second unlocking member for unlocking the second locking member is arranged outside the second inserting hole.

[0015] In some embodiments, the vehicle frame assembly has a push rod and a connecting member. The lower end of the push rod passes through the connecting member and is connected to the upper end of the rear foot assembly. The upper end of the front foot assembly is connected to the front end of the connecting member. The first fixing portion is arranged on the connecting member.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] 1. The baby stroller of the present invention has a simple structure, can meet the needs of users to adjust the positions of multiple seat frames according to actual requirements, and further facilitates mother-infant communication.

[0018] 2. It is reasonably designed. Without increasing the volume and weight of the vehicle body, the baby stroller can conveniently accommodate multiple infants and young children, thus alleviating the travel difficulties of the parents of multiple infants and young children. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural view of the baby stroller in the form of a single seat frame in an embodiment of the present invention;

[0020] Figure 2 is a side view of the baby stroller in the form of a single seat frame in an embodiment of the present invention;

[0021] Figure 3It is a schematic structural diagram of the side-by-side form of the double seat frame of the baby stroller in the embodiment of the present invention;

[0022] Figure 4 It is a side view of the side-by-side form of the double seat frame of the baby stroller in the embodiment of the present invention;

[0023] Figure 5 It is a schematic structural diagram of the front-back form of the double seat frame of the baby stroller in the embodiment of the present invention;

[0024] Figure 6 It is a side view of the side-by-side form of the double seat frame of the baby stroller in the embodiment of the present invention;

[0025] Figure 7 It is a first schematic structural diagram of the connecting bracket in the embodiment of the present invention;

[0026] Figure 8 It is a second schematic structural diagram of the connecting bracket in the embodiment of the present invention;

[0027] Figure 9 It is a schematic structural diagram of the first fixing part in the embodiment of the present invention;

[0028] Figure 10 It is a schematic structural diagram of the first mounting part in the embodiment of the present invention. Detailed implementation manners

[0029] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of the technical solutions claimed by the present invention.

[0030] As Figures 1 to 10 shown, this embodiment provides a baby stroller, which includes a frame assembly 1, a front foot assembly 2 and a rear foot assembly 3. The frame assembly 1 is respectively connected to the upper ends of the front foot assembly 2 and the rear foot assembly 3, and further includes at least one seat frame assembly 4 and at least one connecting bracket 5. A first fixing part 6 is provided on the frame assembly 1, a first mounting part 7 is provided on the seat frame assembly 4, and a second mounting part 8 and a second fixing part 9 are respectively provided on the connecting bracket 5. The first mounting part 7 is cooperatively connected with the first fixing part 6 to directly mount the seat frame assembly 4 on the frame assembly 1, and / or after the second mounting part 8 is cooperatively connected with the first fixing part 6, the first mounting part 7 is cooperatively connected with the second fixing part 9 together to mount the seat frame assembly 4 on the frame assembly 1 through the connecting bracket 5.

[0031] In this embodiment, a connecting bracket 5 is added to the baby stroller and the number of seat frame assemblies 4 is adjusted. In addition, a first fixing portion 6 is provided on the frame assembly 1. By providing a first mounting portion 7 on the seat frame assembly 4 that cooperates with and connects to the first fixing portion 6, and a second mounting portion 8 that cooperates with and connects to the first fixing portion 6 is provided at the bottom position of the connecting bracket 5. The first mounting portion 7 and the second mounting portion 8 are mounting portions of the same structure, so that the seat frame assembly 4 and the frame assembly 1 are cooperatively mounted together, or the connecting bracket 5 and the frame assembly 1 are cooperatively mounted together. Of course, a second fixing portion 9 having the same structure as the first mounting portion 7 is also provided at the top position of the connecting bracket 5, so that the seat frame assembly 4 is directly cooperatively mounted with the frame assembly 1, or the seat frame assembly 4 is cooperatively mounted with the frame assembly 1 through a connecting component. Its structure is simple, convenient for disassembly and assembly, can meet the user's need to adjust the positions of multiple seat frames according to actual requirements, and further facilitates mother-infant communication.

[0032] Further, the rear foot assembly 3 includes a rear foot bracket 31 connected to the frame assembly 1, a left rear foot 32, and a right rear foot 33. The rear foot bracket 31 is respectively connected to the left rear foot 32 and the right rear foot 33. A first connecting portion 34 is provided on the rear foot bracket 31, and a second connecting portion 51 is provided on the connecting bracket 5. The first connecting portion 34 and the second connecting portion 51 are cooperatively connected so that the connecting bracket 5 is installed at a position between the left rear foot 32 and the right rear foot 33. Its structure is simple, convenient for disassembly and assembly, and at the same time further makes the connecting bracket 5 firmly installed at a position between the left rear foot 32 and the right rear foot 33.

[0033] Preferably, when the first connecting portion 34 and the second connecting portion 51 are cooperatively connected, the second fixing portion 9 is provided at the middle position of the connecting bracket 5. The second fixing portion 9 and the first mounting portion 7 are cooperatively connected together so that the seat frame assembly 4 is installed at a position between the left rear foot 32 and the right rear foot 33 through the connecting bracket 5. Its design is reasonable and it is convenient to install the seat frame assembly 4 at a position between the left rear foot 32 and the right rear foot 33.

[0034] Specifically, the rear foot support 31 includes a left rear foot support 311 and a right rear foot support 312. The upper end of the left rear foot support 311 is connected to the frame assembly 1, and its lower end is connected to the left rear foot 32. The upper end of the right rear foot support 312 is connected to the frame assembly 1, and its lower end is connected to the right rear foot 33. Concave cavities 341 are respectively recessed on the opposite sides of the left rear foot support 311 and the right rear foot support 312 to form a first connection portion 34. A positioning member 342 is disposed in the concave cavity 341. The second connection portions 51 are respectively disposed at both ends of the connection bracket 5. The second connection portion 51 includes a locking member and an unlocking button 511 for unlocking the locking member. The locking member is cooperatively connected with the positioning member 342 to clamp both ends of the connection bracket 5 in the concave cavity 341. Its structure is simple, facilitating disassembly and assembly, and can improve the stability of the frame assembly 1 after installation.

[0035] In this embodiment, one end of the rear foot support 31 is connected to the frame assembly 1, and the other end extends rearwardly to the left and right sides respectively to form a left rear foot support 311 and a right rear foot support 312. A left rear foot 32 is provided at the end of the left rear foot support 311 away from the frame assembly 1, and a right rear foot 33 is provided at the end of the right rear foot support 312 away from the frame assembly 1. Concave cavities 341 are respectively recessed on the corresponding side walls of the left rear foot support 311 and the right rear foot support 312 to form a first connection portion 34. The top end of the concave cavity 341 is in an open state. A positioning member 342 protrudes outwardly in the concave cavity 341. The second connection portions 51 are respectively disposed at both ends of the connection bracket 5. The second connection portion 51 includes a locking member and an unlocking button 511 for unlocking the locking member. Under the action of an external force, both ends of the connection bracket 5 are pressed downward along the open end of the convex cavity from top to bottom, and the locking member is cooperatively connected with the positioning member 342 to clamp both ends of the connection bracket 5 in the concave cavity 341. If it is necessary to separate the connection bracket 5 from the rear foot support 31, after unlocking the locking member by pressing the unlocking button 511 with an external force, the connection bracket 5 is taken out upward, so that the connection bracket 5 is separated from the rear foot support 31. Thus, when the connection bracket 5 is firmly installed at the position between the left rear foot 32 and the right rear foot 33 to position between the left rear foot 32 and the right rear foot 33, to further improve the safety performance of the baby stroller. When the connection bracket 5 is installed at the position between the left rear foot 32 and the right rear foot 33, the user can cooperate and connect the first installation portion 7 of the seat frame assembly 4 with the second fixing portion 9 at the middle position of the connection bracket 5, so that the seat frame assembly 4 is installed at the position between the left rear foot 32 and the right rear foot 33 through the connection bracket 5. In addition, a seat frame assembly 4 can also be installed at the front end position of the frame assembly 1, so that the baby stroller has a double seat frame, and the double seat frames are arranged in a front-back form. Furthermore, without increasing the volume and weight of the vehicle body, it is convenient for the baby stroller to carry multiple infants, thus reducing the travel difficulties of the parents of multiple infants.

[0036] Furthermore, when the second mounting part 8 is cooperatively connected with the first fixing part 6, the second fixing parts 9 are respectively arranged at two ends of the connecting bracket 5, and the number of the seat frame assemblies 4 is two. The first mounting parts 7 of the two seat frame assemblies 4 are respectively cooperatively connected with the two second fixing parts 9 so that the two seat frame assemblies 4 are respectively mounted at two ends of the vehicle frame assembly 1 through the connecting bracket 5. The design is reasonable and ingenious, which can meet the user's need to adjust the positions of multiple seat frames according to actual requirements, and further make the baby stroller convenient for multiple infants to ride.

[0037] In this embodiment, at least three second fixing parts 9 are arranged on the connecting bracket 5, one of which is arranged at the middle position of the connecting bracket 5, and the other two are arranged at the two end positions of the connecting bracket 5. At the same time, second connecting parts 51 are respectively arranged on both sides of the connecting bracket 5, so that the connecting bracket 5 can be mass-produced, and at the same time, it further meets the user's need to adjust the positions of multiple seat frames according to actual requirements, and further makes the baby stroller adapt to the need of single or multiple infants to use at the same time.

[0038] In this embodiment, when the second mounting part 8 is cooperatively connected with the first fixing part 6, the user respectively cooperatively connects the first mounting parts 7 of the two seat frame assemblies 4 with the second fixing parts 9 at both ends of the connecting bracket 5 so that the two seat frame assemblies 4 are mounted at both ends of the vehicle frame assembly 1, so that the two seat frame assemblies 4 are respectively mounted at both ends of the vehicle frame assembly 1 through the connecting bracket 5. In this way, the need for multiple infants to use at the same time is realized, and the baby stroller also has a double seat frame, and the double seat frames are arranged side by side. In addition, when double seat frame assemblies 4 are arranged on both sides of the front end of the vehicle frame assembly 1, a seat frame assembly 4 and a connecting bracket 5 can be additionally provided. After the connecting bracket 5 is arranged at the position between the left rear foot 32 and the right rear foot 33, the seat frame assembly 4 is arranged on the connecting bracket 5 so that the seat frame assembly 4 is mounted at the position between the left rear foot 32 and the right rear foot 33 through the connecting bracket 5. In this way, the baby stroller can have three seat frame assemblies 4 at the same time to meet the needs of multiple infants to ride, wherein two seat frame assemblies 4 are arranged on both sides of the front end of the vehicle frame assembly 1, and the other seat frame assembly 4 is arranged at the position between the left rear foot 32 and the right rear foot 33. Of course, the user can also mount a seat frame assembly 4 at the middle position of the upper end of the vehicle frame assembly 1 to meet the need of a single infant to ride, and at the same time, the connecting bracket 5 can be mounted at the position between the left rear foot 32 and the right rear foot 33 to position between the left rear foot 32 and the right rear foot 33.

[0039] Further, the first fixing part 6 has a first jack 61, a first locking part is arranged on the first jack 61, and a first unlocking part 63 for unlocking the first locking part is arranged outside the first jack 61. The first mounting part 7 has a first plug rod 71 that is cooperatively connected with the first jack 61. A first positioning groove 72 is recessed on the side wall of the first plug rod 71. The first locking part is cooperatively connected with the first positioning groove 72 to limit the vertical movement of the seat frame assembly 4. Its structure is simple and reasonable, which is convenient for the disassembly and assembly between the seat frame assembly 4 and the vehicle frame assembly 1.

[0040] Preferably, a first boss 64 protrudes upward on the vehicle frame assembly 1. The inlet of the first jack 61 is arranged at the center position of the first boss 64. The side wall of the first boss 64 extends outward to be provided with first limit blocks 65, and the first limit blocks 65 are distributed at intervals along the circumferential direction of the first boss 64. A first mounting cavity 73 is defined by downward extension of the bottom wall of the seat frame assembly 4. The first plug rod 71 is inserted into the first mounting cavity 73. First clamping blocks 74 that are staggered with the first limit blocks 65 are arranged at intervals on the inner side wall of the first mounting cavity 73. The first clamping blocks 74 and the first limit blocks 65 are clamped with each other to limit the circumferential movement of the seat frame assembly 4. Its structure is simple and can further improve the reliability of the assembly between the seat frame assembly 4 and the vehicle frame assembly 1.

[0041] Specifically, the second mounting part 8 extends downward on the bottom wall of the connecting bracket 5 to define a second mounting cavity 81. Second clamping blocks 82 that are staggered with the first limit blocks 65 are arranged at intervals on the inner side wall of the second mounting cavity 81. The first limit blocks 65 and the second clamping blocks 82 are clamped with each other to limit the circumferential movement of the connecting bracket 5. A second plug rod 83 that is cooperatively connected with the first jack 61 is arranged in the second mounting cavity 81. A second positioning groove 84 is recessed on the side wall of the second plug rod 83. The second positioning groove 84 is cooperatively connected with the first locking part to limit the vertical movement of the connecting bracket 5. Its structure is simple and compact, and can further improve the reliability of the assembly between the connecting bracket 5 and the vehicle frame assembly 1.

[0042] Furthermore, a second boss 91 is formed by the second fixing part 9 protruding upward from the top wall of the connecting bracket 5. A second limiting block 92 is arranged on the outer side wall of the second boss 91 and the second limiting blocks 92 are distributed at intervals along the circumferential direction of the second boss 91. The second limiting block 92 and the first clamping block 74 are clamped with each other to limit the circumferential movement of the seat frame assembly 4. A second jack 93 for mating connection with the first plug 71 is arranged at the central position of the second boss 91. A second locking member is arranged on the second jack 93. The second locking member and the first positioning groove 72 are in mating connection to limit the vertical movement of the seat frame assembly 4. A second unlocking member 94 for unlocking the second locking member is arranged outside the second jack 93. The design is reasonable and ingenious, which can further improve the assembly reliability between the connecting bracket 5 and the seat frame assembly 4.

[0043] In this embodiment, since a first positioning groove 72 for mating connection with the first locking member is recessed on the side wall of the first plug 71 and the first positioning groove 72 is formed along the circumferential direction of the first plug 71, and a second positioning groove 84 for mating connection with the first locking member is recessed on the side wall of the second plug 83 and the second positioning groove 84 is formed along the circumferential direction of the second plug 83, the installation angle of the seat frame assembly 4 can be reasonably adjusted according to actual needs by the user and then installed on the vehicle frame assembly 1, and / or the installation angle of the seat frame assembly 4 can be reasonably adjusted according to actual needs by the user and then installed on the connecting bracket 5, so that the seat frame assembly 4 is installed on the vehicle frame assembly 1 through the connecting bracket 5. When two seat frame assemblies 4 or one seat frame assembly 4 are arranged at the front end position of the baby stroller, in order to further improve the communication between the mother and the baby, the user can face the two seat frame assemblies 4 or one seat frame assembly 4 in the direction of the user's pushing the stroller, that is, the purpose of face-to-face communication between the user and the baby can be achieved.

[0044] In this embodiment, a first fixing part 6 is arranged on the vehicle frame assembly 1. A first installation part 7 for mating connection with the first fixing part 6 is arranged on the seat frame assembly 4. A second installation part 8 for mating connection with the first fixing part 6 is arranged at the bottom position of the connecting bracket 5. The first installation part 7 and the second installation part 8 are installation parts with the same structure, so that the seat frame assembly 4 and the vehicle frame assembly 1 are assembled together, or the connecting bracket 5 and the vehicle frame assembly 1 are assembled together. Of course, a second fixing part 9 with the same structure as the first installation part 7 is also arranged at the top position of the connecting bracket 5, so that the seat frame assembly 4 is directly assembled with the vehicle frame assembly 1, or the seat frame assembly 4 is assembled with the vehicle frame assembly 1 through the connecting component. In this way, the baby stroller can meet the user's need to adjust the positions of multiple seat frames according to actual needs, and at the same time, the purpose of mass production of the baby stroller can be realized to further improve the production efficiency of the product.

[0045] Specifically, the frame assembly 1 has a push rod 11 and a connecting member 12. The lower end of the push rod 11 passes through the connecting member 12 and is connected to the upper end of the rear foot assembly 3, and the upper end of the front foot assembly 2 is connected to the front end of the connecting member 12. The first fixing portion 6 is provided on the connecting member 12. Its structure is simple and the design is reasonable, which can effectively improve the stability of the movement of the baby stroller.

[0046] In this embodiment, a cross bar is provided between the left rear foot bracket 311 and the right rear foot bracket 312, and a shock absorber is provided on the cross bar. The shock absorber is connected to the connecting member 12 at the end far from the cross bar to achieve the purpose of damping the seat frame assembly 4. In this embodiment, in order to improve the stability of the movement of the baby stroller, the front foot assembly 2 preferably has two wheel assemblies provided on both sides of the front end of the baby stroller.

[0047] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A baby stroller, which comprises a frame assembly (1), a front foot assembly (2) and a rear foot assembly (3), wherein the frame assembly (1) is respectively connected to the upper ends of the front foot assembly (2) and the rear foot assembly (3), and is characterized in that, It further includes at least one seat frame assembly (4) and at least one connecting bracket (5). A first fixing part (6) is provided on the vehicle frame assembly (1), a first mounting part (7) is provided on the seat frame assembly (4), and a second mounting part (8) and a second fixing part (9) are respectively provided on the connecting bracket (5). The first mounting part (7) is cooperatively connected with the first fixing part (6) to directly mount the seat frame assembly (4) on the vehicle frame assembly (1), and / or after the second mounting part (8) is cooperatively connected with the first fixing part (6), the first mounting part (7) is cooperatively connected with the second fixing part (9) to mount the seat frame assembly (4) on the vehicle frame assembly (1) through the connecting bracket (5); The rear foot assembly (3) includes a rear foot bracket (31) connected to the vehicle frame assembly (1), a left rear foot (32) and a right rear foot (33). The rear foot bracket (31) is respectively connected to the left rear foot (32) and the right rear foot (33). A first connecting part (34) is provided on the rear foot bracket (31), and a second connecting part (51) is provided on the connecting bracket (5). The first connecting part (34) is cooperatively connected with the second connecting part (51) to mount the connecting bracket (5) at a position between the left rear foot (32) and the right rear foot (33); When the second mounting part (8) is cooperatively connected with the first fixing part (6), the second fixing parts (9) are respectively provided at both ends of the connecting bracket (5), and the number of seat frame assemblies (4) is two. The first mounting parts (7) of the two seat frame assemblies (4) are respectively cooperatively connected with the two second fixing parts (9) to mount the two seat frame assemblies (4) at both ends of the vehicle frame assembly (1) through the connecting brackets (5) respectively.

2. The baby stroller according to claim 1, characterized in that, When the first connecting part (34) is cooperatively connected with the second connecting part (51), the second fixing part (9) is provided at the middle position of the connecting bracket (5). The second fixing part (9) is cooperatively connected with the first mounting part (7) to mount the seat frame assembly (4) at a position between the left rear foot (32) and the right rear foot (33) through the connecting bracket (5).

3. A baby stroller according to claim 1, characterized in that, The rear foot bracket (31) has a left rear foot bracket (311) and a right rear foot bracket (312). The upper end of the left rear foot bracket (311) is connected to the frame assembly (1), and its lower end is connected to the left rear foot (32). The upper end of the right rear foot bracket (312) is connected to the frame assembly (1), and its lower end is connected to the right rear foot (33). Concave cavities (341) are respectively recessed on the opposite sides of the left rear foot bracket (311) and the right rear foot bracket (312) to form the first connecting portion (34). A positioning member (342) is arranged in the concave cavity (341). The second connecting portions (51) are respectively arranged at both ends of the connecting bracket (5). The second connecting portion (51) includes a locking member and an unlocking button (511) for unlocking the locking member. The locking member is cooperatively connected with the positioning member (342) to clamp both ends of the connecting bracket (5) in the concave cavity (341).

4. A baby stroller according to claim 1, characterized in that, The first fixing portion (6) has a first jack (61). A first locking member is arranged on the first jack (61), and a first unlocking member (63) for unlocking the first locking member is arranged outside the first jack (61). The first mounting portion (7) has a first plug rod (71) that is cooperatively connected with the first jack (61). A first positioning groove (72) is recessed on the side wall of the first plug rod (71). The first locking member is cooperatively connected with the first positioning groove (72) to limit the vertical movement of the seat frame assembly (4).

5. A baby stroller according to claim 4, characterized in that, A first boss (64) protrudes upward on the frame assembly (1). The inlet of the first jack (61) is arranged at the central position of the first boss (64). The side wall of the first boss (64) extends outward to be provided with first limiting blocks (65), and the first limiting blocks (65) are distributed at intervals along the circumference of the first boss (64). A first mounting cavity (73) is defined by extending downward the bottom wall of the seat frame assembly (4). The first plug rod (71) is inserted into the first mounting cavity (73). First clamping blocks (74) that are staggered from the first limiting blocks (65) are arranged at intervals on the inner side wall of the first mounting cavity (73). The first clamping blocks (74) are clamped with the first limiting blocks (65) to limit the circumferential movement of the seat frame assembly (4).

6. The baby stroller according to claim 5, characterized in that, The second mounting portion (8) extends downward from the bottom wall of the connecting bracket (5) to define a second mounting cavity (81). Second locking blocks (82) staggered from the first limiting blocks (65) are arranged at intervals on the inner side wall of the second mounting cavity (81). The first limiting blocks (65) and the second locking blocks (82) are engaged with each other to limit the circumferential movement of the connecting bracket (5). A second insertion rod (83) matingly connected with the first insertion hole (61) is arranged in the second mounting cavity (81). A second positioning groove (84) is recessed in the side wall of the second insertion rod (83). The second positioning groove (84) is matingly connected with the first locking member to limit the vertical movement of the connecting bracket (5).

7. The baby stroller according to claim 5, wherein, The second fixing portion (9) protrudes upward from the top wall of the connecting bracket (5) to form a second boss (91). Second limiting blocks (92) extending outward are arranged on the side wall of the second boss (91), and the second limiting blocks (92) are distributed at intervals along the circumference of the second boss (91). The second limiting blocks (92) and the first locking blocks (74) are engaged with each other to limit the circumferential movement of the seat frame assembly (4). A second insertion hole (93) matingly connected with the first insertion rod (71) is arranged at the central position of the second boss (91). A second locking member is arranged on the second insertion hole (93). The second locking member is matingly connected with the first positioning groove (72) to limit the vertical movement of the seat frame assembly (4). A second unlocking member (94) for unlocking the second locking member is arranged outside the second insertion hole (93).

8. A baby stroller according to any one of claims 1 to 7, characterized in that, The vehicle frame assembly (1) has a push rod (11) and a connecting member (12). The lower end of the push rod (11) passes through the connecting member (12) and is connected to the upper end of the rear foot assembly (3). The upper end of the front foot assembly (2) is connected to the front end of the connecting member (12). The first fixing portion (6) is arranged on the connecting member (12).

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