Search

CN-116691805-B - Child cart

CN116691805BCN 116691805 BCN116691805 BCN 116691805BCN-116691805-B

Abstract

The invention discloses a baby stroller, which can move from an unfolding position to a folding position after a locking device is unlocked, and comprises a bottom support frame capable of being unfolded or folded, wherein the bottom support frame comprises front legs and rear legs which are rotatably connected to the front legs around a first axis A, the front legs are connected with front wheels, the rear legs are connected with rear wheels, the bottom support frame is also connected with a stay bar assembly which can rotate around a second axis B relative to the bottom support frame, the bottom support frame is also connected with a seat assembly which can rotate around a third axis C relative to the bottom support frame, the seat assembly can move from the unfolding position to the folding position, and a driving structure which can enable the seat assembly to rotate relative to the bottom support frame to be close to the rear legs and enable the front legs and the rear legs to rotate to be close to each other when the stay bar assembly rotates towards the rear legs is arranged among the seat assembly, the front legs, the rear legs and the stay bar assembly can be rotated to be close to each other. The invention aims to overcome the defects of the prior art and provides a child cart convenient to fold.

Inventors

  • LIAO ZHENGHUI

Assignees

  • 中山市星尚婴儿用品有限公司

Dates

Publication Date
20260505
Application Date
20230625

Claims (7)

  1. 1. The child stroller is capable of moving from an unfolding position to a folding position after unlocking a locking device and is characterized by comprising a bottom support frame (1) capable of being unfolded or folded, wherein the bottom support frame (1) comprises a front leg (11) and a rear leg (12) rotatably connected to the front leg (11) around a first axis (A), the front leg (11) is connected with a front wheel (111), the rear leg (12) is connected with a rear wheel (121), the bottom support frame (1) is further connected with a stay bar assembly (13) capable of rotating around a second axis (B) relative to the bottom support frame, the bottom support frame (1) is further connected with a seat assembly (2) capable of rotating around a third axis (C) relative to the bottom support frame, the seat assembly (2) can move from the unfolding position to the folding position, the seat assembly (2), Front legs (11), A driving structure (3) which can enable the seat assembly (2) to rotate relative to the bottom support frame (1) and enable the front leg (11) and the rear leg (12) to rotate close when the support rod assembly (13) rotates close to the rear leg (12) is arranged between the rear leg (12) and the support rod assembly (13), a reversing assembly (4) which can enable the support rod assembly (13) to rotate back and forth relative to the bottom support frame (1) is arranged between the support rod assembly (13) and the bottom support frame (1), the reversing assembly (4) comprises a first locking position (41) and a second locking position (42) which are arranged on the rear leg (12) and can correspond to the front side position and the rear side position of the support rod assembly (13), a first locking part (43) which can slide relative to the support rod assembly and be locked into or separated from the first locking position (41) or the second locking position (42) is arranged on the support rod assembly (13), the seat assembly (2) comprises a seat (22) which can rotate relative to the support rod (21) and is connected to the back support rod (12) around a third axis (C), the backrest rod (22) and the seat rod (21) are also provided with a grab rod (23) which can rotate relative to the backrest rod, the grab rod assembly (13) comprises a grab rod (131) which is rotatably connected to the rear leg (12), the grab rod (131) is connected with a handle rod (132) which can rotate relative to the grab rod, a third locking component (54) which can lock the first locking component (43) and can be driven to unlock when the handle rod (132) is rotated and folded relative to the grab rod (131) is arranged between the first locking component (43) and the rotating seat (321), the locking component (5) comprises a first clamping groove (51) which is arranged on the rear leg (12), a second locking component (52) which can slide relative to the rotating seat (321) and is clamped into or separated from the first clamping groove (51) is connected to the grab rod, the locking component (5) also comprises a third locking component (54) which is connected with the first locking component (43), the rear leg (12) is provided with a third locking component (54) which can be driven to unlock when the first locking component (41) is rotated and the third locking component (55) are positioned relative to the third locking component (55) and the third locking component (55) which can be positioned relative to the third locking component (55) when the third locking component (41) is rotated and positioned relative to the third locking component (55), the third locking piece (54) can be pulled by the handle rod (132) to be separated from the third locking position (55) so as to push the second locking piece (52) and enable the second locking piece (52) to be separated from the first clamping groove (51), and an elastic component (57) capable of pushing the third locking piece (54) to reset is arranged between the third locking piece (54) and the supporting rod (131).
  2. 2. The stroller of claim 1, wherein the driving structure (3) comprises a connecting rod assembly (31) arranged between the seat assembly (2), the front leg (11) and the rear leg (12) and capable of enabling the front leg (11) and the rear leg (12) to rotate close together when the seat assembly (2) rotates relative to the bottom support frame (1), and the driving structure (3) further comprises a transmission assembly (32) arranged between the seat assembly (2), the front leg (11), the rear leg (12) and the stay bar assembly (13) and capable of driving the seat assembly (2) to rotate relative to the bottom support frame (1) when the stay bar assembly (13) rotates.
  3. 3. The stroller of claim 2, wherein the link assembly (31) comprises a first link (311) having one end rotatably connected to the front leg (11) about a fourth axis (D), a second link (312) having one end rotatably connected to the rear leg (12) about a fifth axis (E), the first link (311) and the second link (312) rotatably connected to each other about a sixth axis (F), a third link (313) rotatably connected to the first link (311) or the second link (312) about a seventh axis (G), and the other end of the third link (313) rotatably connected to the seat assembly (2) about an eighth axis (H).
  4. 4. The stroller of claim 1, wherein the stay bar assembly (13) is connected with a first unlocking member (44) capable of sliding relative to the stay bar assembly, a first stay cable (45) is arranged between the first unlocking member (44) and the first locking member (43), and an elastic element (46) capable of pushing the first locking member (43) to reset is arranged between the first locking member (43) and the stay bar assembly (13).
  5. 5. A stroller according to claim 3, wherein the third link (313) is pivotally connected to the seat bar (21) about an eighth axis (H).
  6. 6. The stroller of claim 3, wherein the transmission assembly (32) comprises a rotating seat (321) rotatably connected in the rear leg (12), the rotating seat (321) is connected with the stay bar assembly (13) and rotates along with the stay bar assembly (13) when the stay bar assembly (13) rotates, the rotating seat (321) is provided with a plurality of gear teeth (322) along the circumference, a first gear (323) capable of being meshed with the gear teeth (322) for transmission is arranged on the rear leg (12) and positioned on the inner side of the gear teeth (322), and a second gear (324) meshed with the first gear (323) and capable of driving the seat assembly (2) to rotate when the first gear (323) rotates is fixedly connected on the seat rod.
  7. 7. The stroller of claim 1, wherein an adjusting component (6) capable of adjusting an inclined gear between the backrest rod (22) and the seat rod (21) is arranged between the backrest rod (22) and the seat rod (21), a fifth locking component (7) capable of locking the seat rod (21) and the armrest rod (23) and unlocking when the backrest rod (22) rotates towards the seat rod (21) is arranged between the backrest rod (22) and the seat rod (21) and the backrest rod (22), a second locking component (8) capable of locking the backrest rod (12) and the seat rod (21) is arranged between the backrest rod (22), the second locking component (8) comprises a locking position (81) arranged on the backrest rod (12), a fifth locking piece (82) capable of sliding relative to the seat rod (21) and being locked or unlocked by the locking position (81) is arranged between the backrest rod (22), a fifth locking piece (82) and the backrest rod (22) are provided with a fifth locking piece (82), a fifth pushing piece (84) capable of returning to the backrest rod (82) is arranged on the pushing piece (84), the bump (84) is provided with a second pushing inclined plane (841) which can be contacted with the first pushing inclined plane (821) and mutually propped against the first pushing inclined plane.

Description

Child cart [ Field of technology ] The invention relates to a child stroller. [ Background Art ] At present, the child cart has become an indispensable article for the child in the growth process. The children's barrow on the market can be folded or unfolded generally, but the existing children's barrow is complex in transmission structure, more in connecting rods and larger in volume after folding. Therefore, a child stroller with convenient folding and unfolding operation is highly desired, and the invention provides a novel child stroller structure. [ Invention ] The invention aims to overcome the defects of the prior art and provides a child cart convenient to fold. The invention is realized by the following technical scheme: The utility model provides a children's shallow, can follow expansion position to folding position after unlocking locking device, including the bottom sprag frame 1 that can expand or fold, bottom sprag frame 1 include preceding leg 11 and around first axis A rotation connect the back leg 12 on preceding leg 11, preceding leg 11 on be connected with front wheel 111, back leg 12 on be connected with rear wheel 121, bottom sprag frame 1 on still be connected with the brace subassembly 13 that can rotate around second axis B relative thereto, bottom sprag frame 1 on still be connected with the seat subassembly 2 that can rotate around third axis C relative thereto, seat subassembly 2 can move to folding position from expansion position, seat subassembly 2, preceding leg 11, back leg 12 and brace subassembly 13 between be equipped with and can make seat subassembly 2 rotate relative bottom sprag frame 1 and draw close to back leg 12 and can make the driving structure 3 that front leg 11 and back leg 12 rotate and draw close to each other when brace subassembly 13 rotates to back leg 12. The driving structure 3 comprises a connecting rod assembly 31 which is arranged among the seat assembly 2, the front leg 11 and the rear leg 12 and can enable the front leg 11 and the rear leg 12 to rotate close when the seat assembly 2 rotates relative to the bottom supporting frame 1, and the driving structure 3 further comprises a transmission assembly 32 which is arranged among the seat assembly 2, the front leg 11, the rear leg 12 and the supporting rod assembly 13 and can drive the seat assembly 2 to rotate relative to the bottom supporting frame 1 when the supporting rod assembly 13 rotates. The connecting rod assembly 31 comprises a first linkage rod 311 with one end rotatably connected to the front leg 11 around a fourth axis D, a second linkage rod 312 with one end rotatably connected to the rear leg 12 around a fifth axis E is arranged on the rear leg, the first linkage rod 311 and the second linkage rod 312 rotate around a sixth axis F, a third linkage rod 313 rotating around a seventh axis G is connected to the first linkage rod 311 or the second linkage rod 312, and the other end of the third linkage rod 313 is rotatably connected to the seat assembly 2 around an eighth axis H. And a reversing assembly 4 which can make the supporting rod assembly 13 rotate back and forth relative to the bottom support frame 1 is arranged between the supporting rod assembly 13 and the bottom support frame 1. The reversing assembly 4 comprises a first locking position 41 and a second locking position 42 which are arranged on the rear leg 12 and can correspond to the front side position and the rear side position of the supporting rod assembly 13, the supporting rod assembly 13 is provided with a first locking piece 43 which can slide relatively to be clamped in or separated from the first locking position 41 or the second locking position 42, the supporting rod assembly 13 is connected with a first unlocking piece 44 which can slide relatively to the supporting rod assembly 13, a first stay cable 45 is arranged between the first unlocking piece 44 and the first locking piece 43, and an elastic element 46 which can push the first locking piece 43 to reset is arranged between the first locking piece 43 and the supporting rod assembly 13. The seat assembly 2 comprises a seat rod 21 rotatably connected to the rear leg 12 around a third axis C, a backrest rod 22 capable of rotating relative to the seat rod 21 is connected to the seat rod 21, a grab bar 23 capable of rotating relative to the backrest rod 22 is further arranged between the seat rod 21 and the seat rod 22, and the third linkage rod 313 is rotatably connected to the seat rod 21 around an eighth axis H. The transmission assembly 32 comprises a rotating seat 321 which is rotationally connected in the rear leg 12, the rotating seat 321 is connected with the supporting rod assembly 13 and rotates along with the supporting rod assembly 13 when the supporting rod assembly 13 rotates, the rotating seat 321 is provided with a plurality of gear teeth portions 322 along the circumference, a first gear 323 which can be meshed with the gear teeth portions 322