Stroller

Abstract

The utility model discloses a child stroller which comprises a lower support, a handlebar, a front wheel set, a rear wheel set, an acting piece, a front steel wire and a rear steel wire, wherein the lower side of the handlebar is pivoted to the lower support, the front wheel set and the rear wheel set are horizontally and rotatably connected to the front lower side and the rear lower side of the lower support, the acting piece is relatively and rotatably connected to the lower support, and the upper sides of the front steel wire and the rear steel wire are connected to the acting piece. A front wheel orientation mechanism and a rear wheel orientation mechanism capable of limiting relative horizontal rotation of the front wheel set and the rear wheel set are arranged between the corresponding sides of the lower support and the front wheel set and between the corresponding sides of the lower support and the rear wheel set respectively, and the lower sides of the front and rear steel wires are connected with the front and rear wheel orientation mechanisms respectively; the lower side of the handlebar is connected with a driving piece capable of rotating along with the handlebar, and the driving piece is matched with the acting piece. When the handlebar is switched between the forward position and the backward position, the acting piece can rotate along with the rotation of the driving piece, and then the front steel wire and the rear steel wire are pulled to move upwards or the upward pulling of the front steel wire and the rear steel wire is released, so that the front wheel orientation mechanism and the rear wheel orientation mechanism are switched between the unlocking state and the locking state, and the operation is very simple and convenient.

Claims

1. A baby stroller, comprising a lower frame, a handlebar pivotally connected to the lower frame, and the handlebar is configured to be rotatable between a rearward position and a forward position; characterized in that: The child stroller also includes a front wheel group connected to the front lower side of the lower bracket for relative horizontal rotation, and a rear wheel group connected to the rear lower side of the lower bracket for relative horizontal rotation, and a front wheel orientation mechanism and a rear wheel orientation mechanism that can limit the relative horizontal rotation of the corresponding two are arranged between the corresponding sides of the lower bracket and the front wheel group and the rear wheel group respectively; the child stroller also includes an action member connected to the lower bracket for relative rotation, a front steel wire and a rear steel wire connected to the action member on the upper side, the lower side of the front steel wire is connected to the front wheel orientation mechanism, and the lower side of the rear steel wire is connected to the rear wheel orientation mechanism; a driving member that can rotate in the same direction with the driver is connected to the lower side of the rider, and the driving member is arranged in coordination with the action member; when the rider switches between the forward position and the rear position, the action member can rotate with the rotation of the driving member, thereby pulling the front steel wire or the rear steel wire to move upward, or releasing the upward pulling of the front steel wire or the rear steel wire, so that the front wheel orientation mechanism and the rear wheel orientation mechanism are switched between the unlocked state and the locked state.

2. The baby stroller according to claim 1, characterized in that: When the rider rotates from the rearward position to the forward position, the operating member rotating in one direction pulls the rear steel wire upward to switch the rear wheel orientation mechanism to the unlocked state, and releases the pull on the front steel wire to switch the front wheel orientation mechanism to the locked state; when the rider rotates from the forward position to the rearward position, the operating member rotating in the other opposite direction pulls the front steel wire upward to switch the front wheel orientation mechanism to the unlocked state, and releases the pull on the rear steel wire to switch the rear wheel orientation mechanism to the locked state.

3. The baby stroller according to claim 1 or 2, characterized in that: The child stroller is configured to be switchable between an unfolded state and a folded state. When the rider is in a rearward position, the child stroller can be folded, and when folding, the rider rotates rearward and downward.

4. The stroller according to claim 3, characterized in that: The cooperation between the actuating member and the driving member is also configured so that when the rider rotates downward and backward during the folding process, the actuating member remains stationary.

5. The baby stroller according to claim 1, 2 or 4, characterized in that: A first elastic member that can drive the acting member to rotate is arranged between the acting member and the lower bracket; and the cooperation between the acting member and the driving member is also arranged so that during the rotation of the rider from the rearward position to the forward position, the driving member pushes the acting member to rotate in one direction; during the rotation of the rider from the forward position to the rearward position, the driving member disengages from the push on the acting member, and under the action of the first elastic member, the acting member rotates in another opposite direction.

6. The baby stroller according to claim 1, 2 or 4, characterized in that: The action member is eccentrically provided with a first travel groove, and the driving member is provided with a driving portion, and the driving portion can relatively rotate and extend into the first travel groove.

7. The stroller according to claim 6, characterized in that: When the rider is in the rearward position, the driving portion abuts against the rear end wall of the first travel groove.

8. The stroller according to claim 5, characterized in that: The action member is eccentrically provided with a first travel groove, and the driving member is provided with a driving portion, and the driving portion can relatively rotate and extend into the first travel groove.

9. The stroller according to claim 8, characterized in that: When the rider is in the rearward position, the driving portion abuts against the rear end wall of the first travel groove.

10. The baby stroller according to claim 8 or 9, characterized in that: A second travel groove is eccentrically arranged on the action member, a first spring seat is convexly arranged on the lower bracket, and the first spring seat extends into the second travel groove; one side of the first elastic member is connected to the first spring seat, and the other side is connected to the groove wall on the opposite side of the second travel groove.

11. The baby stroller according to claim 10, characterized in that: The first travel groove and the second travel groove are arranged at intervals.

12. The stroller according to claim 11, characterized in that: The second travel groove is located outside the first travel groove.

13. The child stroller according to any one of claims 1 to 2, 4, 7 to 9, 11 to 12, characterized in that: The lower bracket is also provided with a blocking member, and the blocking member is configured such that when the rider is in a rearward position, one side of the action member abuts against the front end of the blocking member, and a gap exists between the other side of the action member and the rear end of the blocking member.

14. The stroller according to claim 13, characterized in that: When the rider is in the forward position, the other side of the action member abuts against the rear end of the blocking member, and a gap exists between one side and the front end of the blocking member.

15. The stroller according to claim 10, characterized in that: The lower bracket is also provided with a blocking member, and the blocking member is configured such that when the rider is in a rearward position, one side of the action member abuts against the front end of the blocking member, and a gap exists between the other side of the action member and the rear end of the blocking member.

16. The stroller according to claim 15, characterized in that: When the rider is in the forward position, the other side of the action member abuts against the rear end of the blocking member, and a gap exists between one side and the front end of the blocking member.

17. The child stroller according to any one of claims 1 to 2 and 4, characterized in that: The action member is coaxially pivoted to the lower bracket with the rider, or the rider is rotatably connected to the lower bracket around a first rotation axis, and the action member is rotatably connected to the lower bracket around a second rotation axis, and the first rotation axis and the second rotation axis are arranged on the same line or in parallel.

18. The child stroller according to any one of claims 7 to 9, 11, 12 and 14, characterized in that: The action member is coaxially pivoted to the lower bracket with the rider, or the rider is rotatably connected to the lower bracket around a first rotation axis, and the action member is rotatably connected to the lower bracket around a second rotation axis, and the first rotation axis and the second rotation axis are arranged on the same line or in parallel.

19. The stroller according to claim 18, characterized in that: The rider's lower side and the action member are respectively connected to two opposite sides of the lower bracket, and at least the driving part and the action member of the driving member are located on the same side of the lower bracket.

20. The stroller according to claim 19, characterized in that: The lower bracket is provided with connecting holes penetrating left and right, the working member is provided with through holes penetrating left and right, the driving member includes a main body and the driving part eccentrically arranged on one side of the main body; one side of a connecting member is connected to the rider, and the other side passes through the connecting hole and the through hole and is connected to the main body, thereby connecting the rider, the lower bracket, the working member and the driving member.

21. A stroller for children according to any one of claims 1 to 2, 4, 7 to 9, 11, 12, 14, and 19, characterized in that: The lower bracket is provided with a accommodating cavity, the acting member can be relatively rotatably placed in the accommodating cavity, a front channel for the front steel wire to be routed is provided between the accommodating cavity and the front wheel orientation mechanism, and a rear channel for the rear steel wire to be routed is provided between the accommodating cavity and the rear wheel orientation mechanism.

22. The stroller according to claim 21, characterized in that: The bottom wall of the accommodating cavity is partially recessed to form an avoidance cavity, and the acting member is convexly provided with a connecting portion on the corresponding side, and the connecting portion can be relatively rotatably extended into the avoidance cavity, and the upper sides of the front steel wire and the rear steel wire are both connected to the connecting portion; correspondingly, a first channel and a second channel are also provided on the bottom wall of the accommodating cavity, the first channel connects the avoidance cavity and the front channel for the routing of the front steel wire, and the second channel connects the avoidance cavity and the rear channel for the routing of the rear steel wire.

23. The child stroller according to claim 15 or 16, characterized in that: The lower bracket is provided with a accommodating cavity, the acting member can be relatively rotatably placed in the accommodating cavity, a front channel for the front steel wire to be routed is provided between the accommodating cavity and the front wheel orientation mechanism, and a rear channel for the rear steel wire to be routed is provided between the accommodating cavity and the rear wheel orientation mechanism.

24. The stroller according to claim 23, characterized in that: The bottom wall of the accommodating cavity is partially recessed to form an avoidance cavity, and the acting member is convexly provided with a connecting portion on the corresponding side, and the connecting portion can be relatively rotatably extended into the avoidance cavity, and the upper sides of the front steel wire and the rear steel wire are both connected to the connecting portion; correspondingly, a first channel and a second channel are also provided on the bottom wall of the accommodating cavity, the first channel connects the avoidance cavity and the front channel for the routing of the front steel wire, and the second channel connects the avoidance cavity and the rear channel for the routing of the rear steel wire.

25. The stroller according to claim 24, characterized in that: The first spring seat is protruded from the bottom wall of the accommodating cavity; and the blocking member is protruded on the bottom wall of the accommodating cavity.

26. The stroller according to claim 20, characterized in that: A rider locking mechanism is arranged between the lower side of the rider and the lower bracket. After the rider locking mechanism is unlocked, the rider can rotate relative to the lower bracket.

27. The stroller according to claim 26, characterized in that: The rider locking mechanism includes a first tooth groove and a second tooth groove respectively arranged on the lower side of the rider and the side opposite to the lower bracket, a gear disposed in the first tooth groove and the second tooth groove so as to be relatively movable left and right, and a return spring arranged between the bottom wall of the second tooth groove and the gear. Under the action of the return spring, the gear is meshed with the first tooth groove and the second tooth groove at the same time, the rider locking mechanism is in a locked state, and the rider and the lower bracket cannot rotate relative to each other.

28. The stroller according to claim 27, characterized in that: The second tooth groove and the accommodating cavity are respectively arranged on two opposite sides of the lower bracket and communicate with each other through the connecting hole, and the connecting member also passes through the gear.

29. A stroller according to any one of claims 1 to 2, 4, 7 to 9, 11, 12, 14, 19, 20, 22, 24 to 28, characterized in that: The rear wheel orientation mechanism comprises a rear wheel orientation piece which is relatively movably connected to the rear lower side of the lower bracket, a rear mating portion which is arranged on the rear wheel assembly and can be mated with the rear wheel orientation piece, and a rear elastic piece is arranged between the rear wheel orientation piece and the rear lower side of the lower bracket, and the lower side of the rear steel wire is connected to the rear wheel orientation piece.

30. The stroller according to claim 29, characterized in that: The rear wheel orientation piece is arranged to be connected to the rear lower side of the lower bracket so as to be relatively movable up and down, and the rear matching portion is arranged to be a rear orientation hole opening upward.

31. The stroller according to claim 30, characterized in that: The front wheel orientation mechanism comprises a front wheel orientation piece which is relatively movably connected to the front lower side of the lower bracket, a front mating portion which is arranged on the front wheel assembly and can be matched with the front wheel orientation piece, and a front elastic piece is arranged between the front wheel orientation piece and the front lower side of the lower bracket, and the lower side of the front steel wire is connected to the front wheel orientation piece.

32. The stroller according to claim 31, characterized in that: The front wheel directional member is configured to be connected to the front lower side of the lower bracket so as to be relatively movable up and down, and the front matching portion is configured as a front directional hole opening upward.

33. A stroller according to any one of claims 1 to 2, 4, 7 to 9, 11, 12, 14, 19, 20, 22, 24 to 28, 30 to 32, characterized in that: The lower bracket comprises a front foot and a rear foot, the rear side of the front foot is pivotally connected to the front side of the rear foot, and the lower side of the rider and the action member are pivotally connected to the front foot and / or the rear foot.

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