A seat pocket reversing foldable baby stroller

Abstract

The application discloses a seat pocket conversion foldable baby stroller and relates to the technical field of folding strollers.The application comprises a front canopy rod assembly, a backrest assembly, a front handguard assembly, a seat cushion plate assembly, an upper push handle assembly, a lower push handle assembly, a front wheel support assembly and a rear wheel support assembly; the backrest assembly is located on the outer side of one end of the seat cushion plate assembly; the front canopy rod assembly is located on one end of the backrest assembly; the front handguard assembly is located on the outer side of the seat cushion plate assembly; the front wheel support assembly is located on the outer side of the seat cushion plate assembly; the rear wheel support assembly is located on the outer side of the front wheel support assembly; and the lower push handle assembly is located on the outer side of the front wheel support assembly.The cooperation of the backrest assembly, the front handguard assembly, the upper push handle assembly, the front wheel support assembly and the rear wheel support assembly enables the stroller to fold the seat pocket and the whole stroller frame together in different directions according to requirements, thereby improving the folding efficiency and better positioning after folding.

Description

Technical Field

[0001] This invention belongs to the field of folding stroller technology, and in particular relates to a foldable baby stroller with a reversible seat. Background Technology

[0002] A stroller is a baby's "transportation tool," a vehicle that requires assistance to push or pull. A stroller typically consists of a sunshade, seat cushion, bassinet, and dust cover. Strollers have become an essential tool for infants and toddlers. Beyond the basic requirements of stability and safety, users are increasingly emphasizing the stroller's compact size and foldable design. However, current market products do not fold well enough and do not allow for simultaneous folding of the seat in different directions. Therefore, a stroller with a reversible foldable seat is designed to address these issues. Summary of the Invention

[0003] The purpose of this invention is to provide a foldable baby stroller with a reversible seat to solve the technical problems mentioned in the background section.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a reversible foldable baby stroller, comprising a front canopy rod assembly, a backrest assembly, a front handguard assembly, a seat cushion assembly, an upper push handle assembly, a lower push handle assembly, a front wheel bracket assembly, and a rear wheel bracket assembly. The backrest assembly is located on the outer side of one end of the seat cushion assembly, the front canopy rod assembly is located on one end of the backrest assembly, the front handguard assembly is located on the outer side of the seat cushion assembly, the front wheel bracket assembly is located on the outer side of the seat cushion assembly, the rear wheel bracket assembly is located on the outer side of the front wheel bracket assembly, the lower push handle assembly is located on the outer side of the front wheel bracket assembly, and the upper push handle assembly is connected to the lower push handle assembly. The front canopy rod assembly is specifically a fixed canopy rod, which is rotatably connected to the backrest assembly.

[0005] Furthermore, the push handle assembly includes a second push handle, a backrest connector, a protective cover, a push rod unlock button, a push rod unlock control component, and a first gear. One end of the second push handle is fixed to the backrest connector, and the push rod unlock button is slidably connected to the inner side of the backrest connector, with the push rod unlock button located inside the second push handle. The protective cover is snapped into the interior of one end of the backrest connector, and the push rod unlock control component is slidably connected to the inner side of the backrest connector. One end of the top of the push rod unlock control component has an inclined surface, and an arc-shaped plate is fixed to one end of the push rod unlock control component. The first gear is slidably connected to the inner side of the arc-shaped plate, and the first gear is slidably connected to the backrest connector.

[0006] Furthermore, the upper push handle assembly includes two first push handles, a first fixed housing, a second fixed housing, a push handle button, a moving column, and a sliding rod. The first push handle has an inner armrest. The outer sides of both ends of the armrest are slidably connected to the second push handle. The inner sides of both ends of the armrest are slidably connected to the sliding rod. The outer side of the armrest and located between the two first push handles is slidably connected to the second fixed housing. The top of the second fixed housing is screwed to the first fixed housing. The inner side of one end of the second fixed housing and the first fixed housing is slidably connected to the push handle button. The inner sides of both ends of the push handle button are provided with inclined through grooves. The inner side of the inclined through groove is slidably connected to the moving column. The moving column is slidably connected to the second fixed housing and to the first fixed housing. The outer side of the moving column is fixed to the sliding rod. A limiting groove is formed inside the push button and between the two inclined through grooves. A first displacement groove and a second displacement groove are also formed inside the push button and at the bottom of the limiting groove. The second displacement groove is located on one side of the first displacement groove. The width of the second displacement groove is smaller than the width of the first displacement groove. A first locking post is slidably connected to the inner side of the first displacement groove. A second locking post is fixed to the bottom of the first locking post. The second locking post is slidably connected to the second fixed shell and to the second displacement groove. A positioning component is installed inside the armrest and on the inner side of the second push handle. The positioning component includes a sliding block, a limiting block, an assembly column, and a limiting frame. The outer side of the sliding block is fixed to the armrest, and the inner side of the sliding block is slidably connected to the limiting block. The bottom end of the limiting block is slidably connected to both the armrest and the second push handle. An oblique through groove is provided on the inner side of the limiting block. A limiting frame is slidably connected to the outer side of the sliding block away from the push handle unlock button. One end of the limiting frame is fixed to the sliding rod. A through hole is provided on the inner side of the limiting frame at a position corresponding to the oblique through groove. An assembly column is provided inside the through hole, and the assembly column is slidably connected to the moving groove.

[0007] Furthermore, the backrest assembly includes a backrest fixing rod, a connecting shell, a first connector, and a third connector. The outer sides of the bottom of both ends of the backrest fixing rod are fixed with the first connector. The inner side of the first connector is rotatably connected to the connecting shell. One end of the third connector is fixed to the seat pocket. The outer side of the third connector is rotatably connected to the first connector. The connecting shell is bolted to the third connector. A transmission ramp is provided at the bottom of the first connector near the front handguard assembly.

[0008] Furthermore, a limiting block is slidably connected to the inner side of the first connector, and a connector seat is slidably connected to the inside of one end of the connecting shell; A fixing assembly for support is installed between the two connector seats. The fixing assembly includes a limiting post, a fixing plate, and a rotating positioning plate. The two ends of the limiting post are fixed with fixing plates. The end of the fixing plate away from the limiting post is provided with a rotating positioning plate. The rotating positioning plate is slidably connected to the connector seat. The inner side of the connecting shell is equipped with an opening and closing assembly for disengaging from the connector seat. The opening and closing assembly includes a rotating positioning plate and a connecting block. A connecting groove is formed inside the connecting shell near the connector seat. A positioning groove is formed inside the bottom of the connecting shell and communicates with the connecting groove. A stop post is fixed inside the connecting groove and at the top of the positioning groove. A rotating positioning plate is slidably connected inside the connecting groove and is slidably connected to the stop post. A connecting block is slidably connected inside the positioning groove and is slidably connected to the connector seat. A movable inclined surface is formed at the bottom of the connecting block near the connector seat. A return spring is fixed inside the positioning groove and at one end of the connecting block.

[0009] Furthermore, the front handguard assembly includes a limiting handguard, a front handguard latch, and a second connector. The second connector is fixed to the seat pocket, and the front handguard latch is slidably connected to the inner side of the second connector. One end of the front handguard latch is in contact with the transmission inclined surface. The limiting handguard is rotatably connected to the outer side of the second connector away from the seat pocket. A positioning block is fixed to the end of the front handguard latch near the limiting handguard, and the positioning block is slidably connected to the limiting handguard.

[0010] Furthermore, the front wheel bracket assembly includes a front wheel support rod, a front movable wheel, and a second gear. The front movable wheel is rotatably connected to the inner side of the bottom end of the front wheel support rod, and the second gear is slidably connected to the inner side of the top end of the front wheel support rod.

[0011] Furthermore, the rear wheel support assembly includes a rear movable wheel, a rear wheel support rod, a sliding block, and a fourth connector. The rear movable wheel is rotatably connected to the inner side of the bottom end of the rear wheel support rod. The top of both ends of the rear wheel support rod are fixed with a fourth connector. The inner side of one top end of the fourth connector is slidably connected to a first gear, and the interior of the other top end of the fourth connector is slidably connected to a second gear. One end of the fourth connector contacts the backrest connector, and the other end of the fourth connector contacts the front wheel support rod. A support column is slidably connected inside the fourth connector. One end of the support column contacts the second gear, and a sliding block is fixed to one end of the support column.

[0012] Furthermore, a movable block is fixed inside the backrest connector at a position corresponding to the sliding block. One end of the movable block has a first connecting surface and a second connecting surface, and one end of the first connecting surface is connected to the second connecting surface.

[0013] Furthermore, a limiting slider is fixed at one end of the backrest connector near the fourth connector, and an arc-shaped sliding groove is provided inside the fourth connector at a position corresponding to the limiting slider. The fourth connector and the backrest connector are slidably connected through the cooperation of the limiting slider and the arc-shaped sliding groove. The fourth connector has an unlocking component slidably connected to the inside of both ends and the inside of the arc-shaped sliding groove. One end of the unlocking component is in contact with the second gear, and the bottom of the other end of the unlocking component has an inclined surface, which is in contact with the limiting slider.

[0014] The present invention has the following beneficial effects: This invention, through the cooperation of the backrest assembly, front handrail assembly, upper push handle assembly, front wheel bracket assembly, and rear wheel bracket assembly, enables the stroller to fold together with the seat and frame as needed, regardless of the direction in which they are installed. This improves folding efficiency and allows for better positioning after folding. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a reverse schematic diagram of the seat of the present invention; Figure 3 This is a schematic diagram of the folding process of the present invention; Figure 4 This is a side view of the present invention; Figure 5 This is a schematic diagram of the unfolded state of the present invention; Figure 6 This is a schematic diagram of the connection structure between the second push handle and the push rod unlock button of the present invention; Figure 7 This is a schematic diagram of the internal structure of the second fixing shell of the present invention; Figure 8 This is a schematic diagram of the connection structure between the second connector and the seat pocket of the present invention; Figure 9 This is a schematic diagram of the connection structure between the front handguard locking tongue and the first connector of the present invention; Figure 10 This is a schematic diagram of the connection structure between the rear wheel support rod and the fourth connector of the present invention; Figure 11 This is a schematic diagram of the unlocking component of the present invention; Figure 12This is an assembly diagram of the push rod unlocking control component of the present invention; Figure 13 This is a schematic diagram of the connection structure between the push rod unlocking control component and the arc-shaped plate of the present invention; Figure 14 This is a schematic diagram of the backrest connector of the present invention; Figure 15 This is a schematic diagram of the structure of the movable block of the present invention; Figure 16 This is a schematic diagram of the internal structure of the second push handle of the present invention; Figure 17 This is a schematic diagram of the internal structure of the handrail of the present invention; Figure 18 This is a schematic diagram of the connection structure between the fixing plate and the limiting post of the present invention; Figure 19 This is a schematic diagram of the connection structure between the positioning plate and the connecting shell of the present invention; Figure 20 This is a schematic diagram of the rotating positioning plate of the present invention; Figure 21 This is a schematic diagram of the connector seat of the present invention; Figure 22 This is a schematic diagram of the connecting shell structure of the present invention; Figure 23 This is a schematic diagram of the sliding block of the present invention; Figure 24 This is a schematic diagram of the push handle button of the present invention; Figure 25 This is a schematic diagram of the connection structure between the first and second locking pins of the present invention.

[0017] The attached diagram lists the components represented by each number as follows: 1. Fixed canopy rod; 2. Backrest fixing rod; 3. Limiting hand guard; 4. Seat pocket; 5. First push handle; 6. Second push handle; 7. Front wheel support rod; 8. Rear wheel support rod; 9. Backrest connector; 10. Protective cover; 11. Push rod unlock button; 12. Push rod unlock control component; 13. First gear; 14. First fixing shell; 15. Second fixing shell; 16. Push handle button; 17. Moving column; 18. Connector seat; 19. Connecting shell; 20. First connector; 21. Limiting block; 22. Front hand guard locking tongue; 23. Second connector; 24. Third connector; 25. Sliding block; 26. Fourth connector 27. Unlocking component; 28. Second gear; 29. ​​Arc-shaped plate; 30. Moving block; 31. First connecting surface; 32. Second connecting surface; 33. Limiting slider; 34. Assembly groove; 35. Arc-shaped sliding groove; 36. Inclined surface; 37. Sliding block; 38. Limiting block; 39. Limiting post; 40. Fixed plate; 41. Rotating positioning plate; 42. Connecting block; 43. Moving inclined surface; 44. Connecting groove; 45. Positioning groove; 46. Moving groove; 47. Assembly post; 48. Limiting frame; 49. First displacement groove; 50. Second displacement groove; 51. First locking post; 52. Second locking post. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0019] Please see Figures 1-25 As shown, the present invention is a reversible foldable baby stroller, including a front canopy rod assembly, a backrest assembly, a front handguard assembly, a seat cushion assembly, an upper push handle assembly, a lower push handle assembly, a front wheel bracket assembly, and a rear wheel bracket assembly. The backrest assembly is located on the outer side of one end of the seat cushion assembly, the front canopy rod assembly is located on one end of the backrest assembly, the front handguard assembly is located on the outer side of the seat cushion assembly, the front wheel bracket assembly is located on the outer side of the seat cushion assembly, the rear wheel bracket assembly is located on the outer side of the front wheel bracket assembly, the lower push handle assembly is located on the outer side of the front wheel bracket assembly, and the upper push handle assembly is connected to the lower push handle assembly. It can also change the orientation of the seat plate assembly during assembly, so that the seat plate assembly can be folded as a whole according to the entire frame, whether it is installed facing forward or backward.

[0020] The front canopy rod assembly is specifically a fixed canopy rod 1, which is rotatably connected to the backrest assembly, thereby allowing the angle position of the fixed canopy rod 1 on the backrest assembly to be adjusted. The seat cushion assembly includes a seat 4 and a footrest. The footrest is rotatably connected to the outer side of one end of the seat 4, so that the baby can sit on the footrest and the baby's feet can be placed on the footrest.

[0021] Please see Figure 6 , Figure 13 , Figure 14 and Figure 16 As shown, there are two push handle assemblies, located on both sides of the seat 4. Each push handle assembly includes a second push handle 6, a backrest connector 9, a protective cover 10, a push rod unlock button 11, a push rod unlock control 12, and a first gear 13. One end of the second push handle 6 is fixed to the backrest connector 9. The push rod unlock button 11 is slidably connected to the inner side of the backrest connector 9, and is located inside the second push handle 6, allowing it to slide between the second push handle 6 and the backrest connector 9. The protective cover 10 is snap-fitted into the inner side of one end of the backrest connector 9, enhancing its aesthetics and protecting it from movement. The push rod unlock control 12 is slidably connected to the inner side of the backrest connector 9. An assembly groove 34 is provided on the inner side of the backrest connector 9 at a position corresponding to the push rod unlock control 12. The component 12 and the backrest connector 9 are slidably connected through the assembly groove 34, allowing the push rod unlocking control component 12 to slide up and down inside the backrest connector 9. One end of the push rod unlocking control component 12 has an inclined surface, allowing the push rod unlocking control component 12 to be pressed by the movement of the push rod unlocking button 11, causing it to slide inside the assembly groove 34. One end of the push rod unlocking control component 12 is fixed with an arc-shaped plate 29, and a first gear 13 is slidably connected to the inner side of the arc-shaped plate 29. The first gear 13 is slidably connected to the backrest connector 9, allowing the push rod unlocking control component 12 to slide up and down inside the first gear 13 via the arc-shaped plate 29. Simultaneously, the lifting and lowering of the push rod unlocking control component 12 and the translational pressing of the arc-shaped plate 29 on the first gear 13 allow the first gear 13 to move and disengage from the backrest connector 9. When the push rod unlock button 11 moves, it can press the push rod unlock control 12 through the inclined surface, causing the push rod unlock control 12 to descend inside the backrest joint 9. The descent of the push rod unlock control 12 inside the backrest joint 9 can press the first gear 13 through the arc plate 29, causing the first gear 13 to move. When the first gear 13 moves, it disengages from the sliding connection of the first gear 13, so that the backrest joint 9 can be driven to rotate by the second push handle 6 without the limitation of the first gear 13.

[0022] Please see Figure 6 , Figure 7 , Figure 16 , Figure 17 , Figure 23, Figure 24 and Figure 25 As shown, the push handle assembly includes two first push handles 5, a first fixed housing 14, a second fixed housing 15, a push handle button 16, a moving post 17, and a sliding rod. The first push handle 5 has an inner armrest. The outer sides of both ends of the armrest are slidably connected to the second push handle 6, allowing the outer sides of both ends of the armrest to move inside the second push handle 6, thus enabling the armrest to be stored inside the second push handle 6. Sliding rods are slidably connected to the inner sides of both ends of the armrest. The second fixed housing 15 is slidably connected to the outer side of the armrest, located between the two first push handles 5. The top of the second fixed housing 15 is screwed to the first fixed housing 14, thus fixing it to the outer side of the armrest through the connection of the first fixed housing 14 and the second fixed housing 15. A push button 16 is slidably connected to the inner side of one end of the first fixed shell 14 and the second fixed shell 15. An inclined through groove is opened in the inner side of both ends of the push button 16. A moving column 17 is slidably connected to the inner side of the inclined through groove. The moving column 17 is slidably connected to the second fixed shell 15 and the first fixed shell 14, so that the moving column 17 can be translated between the second fixed shell 15 and the first fixed shell 14. The movement of the inclined through groove can drive the two moving columns 17 to move closer or further away at the same time. The outer side of the moving column 17 is fixed to the sliding rod. At the same time, the outer side of one of the moving columns 17 is connected to the other sliding rod. Thus, the movement of the moving column 17 can drive the two sliding rods to move down at the same time. A limiting groove is formed inside the push button 16 between two inclined through grooves. A first displacement groove 49 and a second displacement groove 50 are also formed inside the push button 16 at the bottom of the limiting groove. The second displacement groove 50 is located to one side of the first displacement groove 49, and its width is smaller than that of the first displacement groove 49. This prevents objects of the same size from entering the inner side of the second displacement groove 50 when moving inside the first displacement groove 49. The limiting groove, the first displacement groove 49, and the second displacement groove 50 are interconnected, ensuring that when the push button 16 is pushed, the first displacement groove 49 first enters the first fixed groove. The shell 14 moves between the second fixed shell 15 and then the second displacement groove 50 enters. The first locking post 51 is slidably connected to the inner side of the first displacement groove 49. The bottom of the first locking post 51 is fixed with the second locking post 52. The second locking post 52 is slidably connected to the second fixed shell 15 and to the second displacement groove 50. Thus, by pressing the second locking post 52, the second locking post 52 can rise and slide from the inside of the first displacement groove 49 to the inside of the second displacement groove 50. In this way, the sliding of the push handle button 16 can be limited at both ends by the first locking post 51 and the second locking post 52. A positioning component is installed inside the handrail and on the inner side of the second push handle 6. The positioning component includes a sliding block 37, a limiting block 38, an assembly column 47, and a limiting frame 48. The outer side of the sliding block 37 is fixed to the handrail, and the inner side of the sliding block 37 is slidably connected to the limiting block 38. The bottom end of the limiting block 38 is slidably connected to both the handrail and the second push handle 6. Thus, when the limiting block 38 is located inside the second push handle 6, the handrail cannot move inside the second push handle 6. When the limiting block 38 rises and disengages from the second push handle 6, the handrail can extend and retract inside the second push handle 6. An oblique through groove is provided on the inner side of the limiting block 38. The outer side of the sliding block 37 away from the push rod unlock button 11 is slidably connected to the limiting frame 48. One end of the limiting frame 48 is fixed to the sliding rod, thereby allowing the sliding rod to pass through. The movement of the limit frame 48 causes the limit frame 48 to move; a through hole is provided on the inner side of the limit frame 48 and at the position corresponding to the oblique through groove. An assembly column 47 is provided inside the through hole, and the assembly column 47 is slidably connected to the moving groove 46, so that when the limit frame 48 moves, it can drive the assembly column 47 to move. And through the sliding connection between the limit block 38 and the sliding block 37, when the limit frame 48 drives the assembly column 47 to move closer to the sliding rod, it drives the limit block 38, which is slidably connected through the oblique through groove, to rise. The rise of the limit block 38 can disengage from the sliding connection of the second push handle 6. Thus, when the push handle button 16 can only slide on the outside of the first lock column 51, the handrail can retract on the inside of the second push handle 6. When the second lock column 52 is pressed up and the push handle button 16 is pushed, the second displacement groove 50 can slide on the outside of the second lock column 52. During assembly, the outer side of one of the moving columns 17 is connected to the sliding rod located inside the armrest of the other first push handle 5, and the moving column 17 and the other first push handle 5 are located in different directions. Thus, when the push handle button 16 is pressed, the movement inside the second fixed shell 15 causes the two moving columns 17 to move closer together. This movement of one moving column 17 drives the movement of the other sliding rod, which in turn drives the limiting frame 48 to move. When the limiting frame 48 moves the assembly column 47 towards the sliding rod, it causes the limiting block 38, which is slidably connected by the inclined through groove, to rise. The rise of the limiting block 38 can disengage from the slidingly connected second push handle 6. Thus, when the push handle button 16 can only slide on the outer side of the first locking column 51, the armrest retracts on the inner side of the second push handle 6. When the second locking column 52 is pressed up and the push handle button 16 is pushed, the second displacement groove 50 can slide on the outer side of the second locking column 52.

[0023] Preferably, the angles of the inclined through slot and the slanted through slot are both 45 degrees.

[0024] Please see Figure 8 , Figure 9 and Figures 18-22 As shown, the backrest assembly includes a backrest fixing rod 2, a connecting shell 19, a first connector 20, and a third connector 24. The backrest fixing rod 2 is U-shaped. The first connector 20 is fixed to the outer side of the bottom of both ends of the backrest fixing rod 2. The inner side of the first connector 20 is slidably connected to the inclined through groove 21 of the limiting block. The inner side of the backrest fixing rod 2 is provided with a positioning member, which is connected to the limiting block 21. Thus, the positioning member can rotate to drive the limiting block 21 to slide upward on the inner side of the backrest fixing rod 2. After rotating in the opposite direction, the limiting block 21 will descend due to its own weight. The inner side of the first connector 20 is rotatably connected to the connecting shell 19. The inner side of one end of the connecting shell 19 is slidably connected to the connector seat 18. The limiting block 21 is slidably connected to the connecting shell 19, so that when the limiting block 21 is located inside the connecting shell 19, it can prevent the first connector 20 from rotating outside the connecting shell 19. One end of the third connector 24 is fixed to the seat 4. The outer side of the third connector 24 is rotatably connected to the first connector 20, so that the first connector 20 can rotate on the outer side of the third connector 24. The connecting shell 19 is bolted to the third connector 24, and the rotation is limited by the fixing of the connecting shell 19 to the third connector 24. The bottom of the first connector 20 near the front handguard assembly is provided with a transmission ramp, which can be driven to rotate by the rotation of the first connector 20. A fixing assembly for support is installed between the two connector seats 18. The fixing assembly includes a limiting post 39, a fixing plate 40, and a rotating positioning plate 41. The fixing plates 40 are fixed at both ends of the limiting post 39. The rotating positioning plate 41 is provided at the end of the fixing plate 40 away from the limiting post 39. The rotating positioning plate 41 is slidably connected to the connector seat 18, thereby fixing the position of the two connector seats 18. The front handguard assembly includes a limiting handguard 3, a front handguard latch 22, and a second connector 23. The second connector 23 is fixed to the seat 4. The front handguard latch 22 is slidably connected to the inner side of the second connector 23, and one end of the front handguard latch 22 is in contact with the transmission ramp. Thus, the transmission ramp can be rotated by the rotation of the first connector 20. The rotation of the transmission ramp squeezes the front handguard latch 22, causing the front handguard latch 22 to slide inside the second connector 23. The limiting handguard 3 is rotatably connected to the outer side of the second connector 23 away from the seat 4. A positioning block is fixed to the end of the front handguard latch 22 near the limiting handguard 3. The positioning block is slidably connected to the limiting handguard 3, so that when the front handguard latch 22 contacts the first connector 20, the positioning block can limit the limiting handguard 3, preventing the limiting handguard 3 from rotating outside the second connector 23. An opening and closing assembly for disengaging from the connector seat 18 is installed on the inner side of the connecting shell 19, allowing the connecting shell 19 to disengage from the slidingly connected connector seat 18. The opening and closing assembly includes a rotating positioning plate 41 and a connecting block 42. A connecting groove 44 is formed inside the connecting shell 19 near the connector seat 18, and a positioning groove 45 is formed on the inner side of the bottom end of the connecting shell 19, and the positioning groove 45 communicates with the connecting groove 44, allowing an object to slide inside the positioning groove 45 and move to the inner side of the connecting groove 44. A stop post is fixed inside the connecting groove 44 and at the top of the positioning groove 45. A sliding connection is formed inside the connecting groove 44. Rotate the positioning plate 41, and the positioning plate 41 is slidably connected to the stop post, so that the positioning plate 41 can slide on the outside of the stop post but cannot detach from the connecting shell 19. The inner side of the positioning groove 45 is slidably connected to the connecting block 42, and the connecting block 42 is slidably connected to the connector seat 18. The bottom of the connecting block 42 near the connector seat 18 is provided with a moving inclined surface 43. The inner side of the positioning groove 45 and one end of the connecting block 42 is fixed with a return spring, so that the connecting block 42 can be disengaged from the slidably connected connector seat 18 by the upward movement of the rotating positioning plate 41, thereby enabling the seat pad assembly to be adjusted in both directions. When the connecting shell 19 needs to be assembled outside the connector seat 18, the connecting shell 19 enters the outer side of the top of the connector seat 18 through the sliding connection between the connector seat 18 and the connecting shell 19. Then, the connecting shell 19 is pressed down, causing the connecting shell 19 to descend and the moving inclined surface 43 on the connecting block 42 to contact the connector seat 18. Then, the inclination of the moving inclined surface 43 drives the connecting block 42 into the interior of the positioning groove 45 and squeezes the return spring. Then, the connecting shell 19 continues to descend. After descending to an appropriate position, the rebound after the return spring is compressed causes the connecting block 42 to enter the sliding connection of the connector seat 18, thereby fixing the connection between the connector seat 18 and the connecting shell 19.

[0025] When the limit handguard 3 needs to be rotated, the rotation of the first joint 20 on the outside of the third joint 24 and the connecting shell 19 drives the transmission inclined surface to rotate. The rotation of the transmission inclined surface squeezes the front handguard locking tongue 22, causing the front handguard locking tongue 22 to slide on the inside of the second joint 23. The sliding of the front handguard locking tongue 22 drives the positioning block to slide. The sliding of the positioning block allows the limit handguard 3 to rotate on the outside of the second joint 23, thereby enabling both the backrest fixing rod 2 and the limit handguard 3 to be folded. When the seat cushion assembly needs to be adjusted in both directions, pull the rotating positioning plate 41 upward. The rotating positioning plate 41 moves upward inside the connecting groove 44 and is positioned by the stop post. Then, the upward movement of the rotating positioning plate 41 causes the connecting block 42 to enter the interior of the positioning groove 45 through the tilting of the moving inclined surface 43 and squeezes the return spring. Then, continue to pull the seat cushion assembly upward to move the connecting shell 19 away from the sliding connection of the connector seat 18. The seat cushion assembly can then be adjusted in both directions and reinstalled through the sliding connection between the connector seat 18 and the connecting shell 19.

[0026] Please see Figures 10-12 , Figure 14 , Figure 15 As shown, the front wheel support assembly includes a front wheel support rod 7, a front movable wheel, and a second gear 28. The front movable wheel is rotatably connected to the inner side of the bottom end of the front wheel support rod 7, so that the front wheel support assembly can be moved by the movement of the front movable wheel. The second gear 28 is slidably connected to the inner side of the top end of the front wheel support rod 7, so that the second gear 28 can slide inside the front wheel support rod 7. At the same time, when the second gear 28 is squeezed, it can completely enter the inner side of the top end of the front wheel support rod 7. The rear wheel support assembly includes a rear movable wheel, a rear wheel support rod 8, a sliding block 25, and a fourth connector 26. The rear movable wheel is rotatably connected to the inner side of the bottom end of the rear wheel support rod 8, so that the rear wheel support assembly can be moved by the movement of the rear movable wheel. The top of both ends of the rear wheel support rod 8 are fixed with the fourth connector 26. The inner side of the top end of the fourth connector 26 is slidably connected to the first gear 13, so that the first gear 13 can be completely inserted into the interior of the first gear 13 after being squeezed by the arc plate 29. The interior of the other top end of the fourth connector 26 is slidably connected to the second gear 28, so that the fourth connector 26 cannot be rotated when the second gear 28 is inside the fourth connector 26. The backrest connector 9, the fourth connector 26, and the front wheel support rod 7 are fixed together by bolts. One end of the fourth connector 26 contacts the backrest connector 9. A limiting slider 33 is fixed to one end of the backrest connector 9 near the fourth connector 26. An arc-shaped sliding groove 35 is provided inside the fourth connector 26 at the position corresponding to the limiting slider 33. The fourth connector 26 and the backrest connector 9 are slidably connected through the cooperation of the limiting slider 33 and the arc-shaped sliding groove 35. The other end of the fourth connector 26 contacts the front wheel support rod 7. A support column is slidably connected inside the fourth connector 26. One end of the support column contacts the second gear 28. A sliding block 25 is fixed to one end of the support column, so that the support column can be moved after the sliding block 25 is squeezed. The movement of the support column and the squeezing of the second gear 28 cause the second gear 28 to move from the inside of the slidably connected fourth connector 26 to the inside of the front wheel support rod 7. A moving block 30 is fixed inside the backrest connector 9 at the position corresponding to the sliding block 25, so that the sliding block 25 can be squeezed by the rotation of the backrest connector 9 driving the moving block 30 to rotate. One end of the movable block 30 is provided with a first connecting surface 31 and a second connecting surface 32. The first connecting surface 31 is a horizontal connecting surface, and the second connecting surface 32 is an inclined connecting surface. One end of the first connecting surface 31 is connected to the second connecting surface 32, so that the second connecting surface 32 can be rotated by the rotation of the movable block 30 to squeeze the sliding block 25, and then the sliding block 25 can be moved inside the second push handle 6 according to the inclination of the second connecting surface 32. The fourth connector 26 has an unlocking member 27 slidably connected to the inside of both ends and the inside of the arc-shaped sliding groove 35. One end of the unlocking member 27 contacts the second gear 28, and the bottom of the other end of the unlocking member 27 has an inclined surface 36, which contacts the limiting slider 33. Thus, the second gear 28 can move stably again by the rotation of the limiting slider 33 and the squeezing of the inclined surface 36. When the push rod unlocking control 12 is pressed and slides inside the backrest connector 9, it drives the first gear 13 to move away from the backrest connector 9. The movement of the first gear 13 allows it to fully enter the sliding connection of the fourth connector 26. At the same time, the rotation of the backrest connector 9 drives the limiting slider 33 and the moving block 30 to rotate. The rotation of the moving block 30 presses the sliding block 25 through the inclination of the second connecting surface 32. The pressing of the sliding block 25 presses the second gear 28 through the support column. At the same time, the rotation of the limiting slider 33 presses the unlocking member 27. After being pressed, the unlocking member 27 moves inside the fourth connector 26 and presses the second gear 28, so that the second gear 28 fully enters the front wheel support rod 7. At this time, there is no structural jam between the front wheel support rod 7 and the fourth connector 26, and between the fourth connector 26 and the backrest connector 9. Therefore, the front wheel bracket assembly and the rear wheel bracket assembly can be rotated and folded.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A foldable baby stroller with a reversible seat, characterized in that: The device includes a front canopy rod assembly, a backrest assembly, a front handguard assembly, a seat cushion assembly, an upper push handle assembly, a lower push handle assembly, a front wheel bracket assembly, and a rear wheel bracket assembly. The backrest assembly is located on the outer side of one end of the seat cushion assembly, the front canopy rod assembly is located on one end of the backrest assembly, the front handguard assembly is located on the outer side of the seat cushion assembly, the front wheel bracket assembly is located on the outer side of the seat cushion assembly, the rear wheel bracket assembly is located on the outer side of the front wheel bracket assembly, the lower push handle assembly is located on the outer side of the front wheel bracket assembly, and the upper push handle assembly is connected to the lower push handle assembly. The front canopy rod assembly is specifically a fixed canopy rod (1), which is rotatably connected to the backrest assembly; The push handle assembly includes a second push handle (6), a backrest connector (9), a protective cover (10), a push rod unlock button (11), a push rod unlock control (12), and a first gear (13). One end of the second push handle (6) is fixed with a backrest connector (9). The push rod unlock button (11) is slidably connected to the inner side of the backrest connector (9), and the push rod unlock button (11) is located inside the second push handle (6). The protective cover (10) is snapped into the inner side of one end of the backrest connector (9). The push rod unlock control (12) is slidably connected to the inner side of the backrest connector (9), and a slope is opened at one end of the top of the push rod unlock control (12). An arc plate (29) is fixed to one end of the push rod unlock control (12). The first gear (13) is slidably connected to the inner side of the arc plate (29), and the first gear (13) is slidably connected to the backrest connector (9). The upper push handle assembly includes two first push handles (5), a first fixed shell (14), a second fixed shell (15), a push handle button (16), a moving column (17), and a sliding rod. The first push handle (5) has a handrail inside. The outer sides of both ends of the handrail are slidably connected to the second push handle (6). The inner sides of both ends of the handrail are slidably connected to the sliding rod. The outer side of the handrail and located between the two first push handles (5) is slidably connected to the second fixed shell (15). The top of the second fixed shell (15) is screwed to the first fixed shell (14). The inner side of one end of the second fixed shell (15) and the first fixed shell (14) is slidably connected to the push handle button (16). The inner sides of both ends of the push handle button (16) are provided with inclined through grooves. The inner side of the inclined through groove is slidably connected to the moving column (17). The moving column (17) is slidably connected to the second fixed shell (15) and to the first fixed shell (14). The outer side of the moving column (17) is fixed to the sliding rod. A limiting groove is provided inside the push button (16) between two inclined through grooves. A first displacement groove (49) and a second displacement groove (50) are also provided inside the push button (16) at the bottom of the limiting groove. The second displacement groove (50) is located on one side of the first displacement groove (49). The width of the second displacement groove (50) is smaller than the width of the first displacement groove (49). A first locking post (51) is slidably connected to the inner side of the first displacement groove (49). A second locking post (52) is fixed to the bottom of the first locking post (51). The second locking post (52) is slidably connected to the second fixed shell (15) and to the second displacement groove (50). A positioning component is installed inside the handrail and on the inner side of the second push handle (6). The positioning component includes a sliding block (37), a limiting block (38), an assembly column (47), and a limiting frame (48). The outer side of the sliding block (37) is fixed to the handrail. The inner side of the sliding block (37) is slidably connected to the limiting block (38). The bottom end of the limiting block (38) is slidably connected to the handrail and to the second push handle (6). The inner side of the limiting block (38) is provided with an oblique through groove. The outer side of the sliding block (37) away from the push rod unlock button (11) is slidably connected to the limiting frame (48). One end of the limiting frame (48) is fixed to the sliding rod. The inner side of the limiting frame (48) is provided with a through hole at the position corresponding to the oblique through groove. The inside of the through hole is provided with an assembly column (47), and the assembly column (47) is slidably connected to the moving groove (46).

2. The reversible foldable baby stroller according to claim 1, characterized in that, The backrest assembly includes a backrest fixing rod (2), a connecting shell (19), a first connector (20) and a third connector (24). The first connector (20) is fixed to the outer side of the bottom of both ends of the backrest fixing rod (2). The connecting shell (19) is rotatably connected to the inner side of the first connector (20). One end of the third connector (24) is fixed to the seat pocket (4). The outer side of the third connector (24) is rotatably connected to the first connector (20). The connecting shell (19) is bolted to the third connector (24). A transmission slope is provided at the bottom of the first connector (20) near the front handguard assembly.

3. A foldable baby stroller with a reversible seat according to claim 2, characterized in that, The inner side of the first connector (20) is slidably connected to the limiting block (21), and the inner side of one end of the connecting shell (19) is slidably connected to the connector seat (18). A fixing assembly for support is installed between the two connector seats (18). The fixing assembly includes a limiting post (39), a fixing plate (40), and a rotating positioning plate (41). The fixing plates (40) are fixed at both ends of the limiting post (39). The rotating positioning plate (41) is provided at the end of the fixing plate (40) away from the limiting post (39). The rotating positioning plate (41) is slidably connected to the connector seat (18). The inner side of the connecting shell (19) is equipped with an opening and closing assembly for disengaging from the connector seat (18). The opening and closing assembly includes a rotating positioning plate (41) and a connecting block (42). A connecting groove (44) is provided inside the connecting shell (19) near the connector seat (18). A positioning groove (45) is provided on the inner side of the bottom end of the connecting shell (19), and the positioning groove (45) communicates with the connecting groove (44). A fixed part is located inside the connecting groove (44) and at the top of the positioning groove (45). The stop post is slidably connected to the inner side of the connecting groove (44) by a rotating positioning plate (41), and the rotating positioning plate (41) is slidably connected to the stop post. The inner side of the positioning groove (45) is slidably connected to a connecting block (42), and the connecting block (42) is slidably connected to the connector seat (18). The bottom of the connecting block (42) near the connector seat (18) is provided with a moving inclined surface (43). A return spring is fixed on the inner side of the positioning groove (45) and at one end of the connecting block (42).

4. A foldable baby stroller with a reversible seat according to claim 2, characterized in that, The front handguard assembly includes a limiting handguard (3), a front handguard latch (22), and a second connector (23). The second connector (23) is fixed to the seat pocket (4). The front handguard latch (22) is slidably connected to the inner side of the second connector (23), and one end of the front handguard latch (22) is in contact with the transmission inclined surface. The limiting handguard (3) is rotatably connected to the outer side of the second connector (23) away from the seat pocket (4). A positioning block is fixed to the end of the front handguard latch (22) near the limiting handguard (3), and the positioning block is slidably connected to the limiting handguard (3).

5. A foldable baby stroller with a reversible seat according to claim 1, characterized in that, The front wheel support assembly includes a front wheel support rod (7), a front moving wheel, and a second gear (28). The front moving wheel is rotatably connected to the inner side of the bottom end of the front wheel support rod (7), and the second gear (28) is slidably connected to the inner side of the top end of the front wheel support rod (7).

6. A foldable baby stroller with a reversible seat according to claim 5, characterized in that, The rear wheel support assembly includes a rear movable wheel, a rear wheel support rod (8), a sliding block (25), and a fourth connector (26). The rear movable wheel is rotatably connected to the inner side of the bottom end of the rear wheel support rod (8). The top of both ends of the rear wheel support rod (8) is fixed with a fourth connector (26). The inner side of one top end of the fourth connector (26) is slidably connected to the first gear (13). The interior of the other top end of the fourth connector (26) is slidably connected to the second gear (28). One end of the fourth connector (26) is in contact with the backrest connector (9). The other end of the fourth connector (26) is in contact with the front wheel support rod (7). A support column is slidably connected inside the fourth connector (26). One end of the support column is in contact with the second gear (28). A sliding block (25) is fixed to one end of the support column.

7. A foldable baby stroller with a reversible seat according to claim 6, characterized in that, Inside the backrest connector (9) and at a position corresponding to the sliding block (25), there is a moving block (30). One end of the moving block (30) is provided with a first connecting surface (31) and a second connecting surface (32). One end of the first connecting surface (31) is connected to the second connecting surface (32).

8. A foldable baby stroller with a reversible seat according to claim 6, characterized in that, The backrest connector (9) has a limiting slider (33) fixed at one end near the fourth connector (26). An arc-shaped sliding groove (35) is provided inside the fourth connector (26) at a position corresponding to the limiting slider (33). The fourth connector (26) and the backrest connector (9) are slidably connected by the cooperation of the limiting slider (33) and the arc-shaped sliding groove (35). The fourth connector (26) has an unlocking component (27) slidably connected inside both ends and inside the arc-shaped sliding groove (35). One end of the unlocking component (27) is in contact with the second gear (28), and the bottom of the other end of the unlocking component (27) has an inclined surface (36) and the inclined surface (36) is in contact with the limiting slider (33).

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