Multi-functional folding stroller

Abstract

The utility model relates to the technical field of folding trolley, especially multi -functional folding trolley, it is more durable, and the whole car is automatically folded in and is released by one healthy press button, and the folding volume is small, and the stability is strong, including push handle subassembly, front foot subassembly, seat frame subassembly and positioning mobile subassembly, push handle subassembly is connected with front foot subassembly, and front foot subassembly is connected with seat frame subassembly, and seat frame subassembly is connected with positioning mobile subassembly.

Description

Technical Field

[0001] This utility model relates to the technical field of folding trolleys, and in particular to a multi-functional folding trolley. Background Technology

[0002] Strollers offer great convenience for adults to carry young children during outdoor activities. For example, the stroller disclosed in prior art publication number CN205952040U includes a stroller frame, a front wheel assembly located at the front bottom of the stroller frame, a rear wheel assembly located at the rear bottom of the stroller frame, and a seat assembly detachably attached to the stroller frame. When the seat assembly is attached to the stroller frame, the stroller has first and second usage states. In the first usage state, the seat assembly is fixedly mounted on the stroller frame, and the stroller is used as a regular stroller. In the second usage state, the seat assembly can swing back and forth on the stroller frame, and the stroller is used as a children's swing. However, similar strollers on the market have complex seat structures, poor operational flexibility, poor stability, unreasonable appearance, and are difficult to open and fold. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a more durable, multi-functional folding stroller that automatically folds up when a button is released, has a small folding volume, and strong stability.

[0004] This utility model discloses a multi-functional folding trolley, including a push handle assembly, a front leg assembly, a seat frame assembly, and a positioning and moving assembly. The push handle assembly is connected to the front leg assembly, the front leg assembly is connected to the seat frame assembly, and the seat frame assembly is connected to the positioning and moving assembly. The push handle assembly rotates on the front leg assembly, while the front leg assembly slides back and forth, folding and rotating forward. The seat frame assembly folds up, and based on the principle of small adjacent gaps, stability, and triangular support, it slides back and forth in the bottom support tube sleeve, making it stronger and more durable. The entire trolley automatically folds down when a button is released, resulting in a small folded size and strong stability.

[0005] Preferably, the push handle assembly includes a double-lock button, a handlebar button, a tension gear, an upper handlebar folding mechanism, a folding positioning component, a front canopy tube, and a handlebar. A double-lock button is installed on the upper part of the handlebar, and a handlebar button is installed on the double-lock button. The handlebar button is connected to a rope, which is located inside the handlebar. The lower part of the handlebar is connected to the upper handlebar folding mechanism via rivets. A tension gear is installed in the middle of the upper handlebar folding mechanism and is connected to the rope. The folding positioning component is installed on the upper handlebar folding mechanism, and the front canopy tube is connected to the upper handlebar folding mechanism. First, press the double-lock button, then press the handlebar button with your finger. The handlebar button pulls the rope, which in turn pulls the tension gear, causing the tension gear to pull the upper handlebar folding mechanism's ramp section upwards and back and forth. The front canopy tube can rotate on the upper handlebar folding mechanism.

[0006] Preferably, the front leg assembly includes a folding gear, a lower handlebar folding mechanism, a large joint, a sliding sleeve, and a front leg tube. The large joint is installed on the front leg tube, and the sliding sleeve is installed between the left parts of the two front leg tubes. The right side of the front leg tube is connected to the lower handlebar folding mechanism by a rivet. A folding gear is installed inside the lower handlebar folding mechanism, allowing the folding positioning component to be inserted into the corresponding slot of the folding gear and rotated. The lower handlebar folding mechanism is connected to the upper handlebar folding mechanism. Since the folding positioning component does not move along the circle in the upper slot of the upper handlebar folding mechanism, when the front leg tube and handlebar rotate, the folding positioning component drives the folding gear to rotate, enabling folding.

[0007] Preferably, the seat frame assembly includes a rear leg tube, a seat frame tube, a foot pedal adjuster, a support frame, a front armrest assembly, a backrest adjuster, and a backrest positioning component. The rear leg tube is connected to the front leg tube by a large joint and rivets. The front armrest assembly is connected to the upper part of the rear leg tube. The large joint is connected to the support frame and rivets, allowing rotation. The support frame and seat frame are connected by rivets, allowing rotation. The seat frame and rear leg tube are connected by rivets, allowing rotation. A backrest rod is connected to the seat frame tube by the backrest positioning component. A backrest adjuster is installed at the top of the backrest rod. The backrest positioning component has three backrest adjustment slots. A foot pedal adjuster is installed at the left end of the seat frame tube. The rear leg tube is rotatably connected to the large joint, the large joint is rotatably connected to the support frame, and the support frame is rotatably connected to the seat frame. This design offers high flexibility and facilitates folding and storage. By lifting the backrest adjuster by hand, a pull rope disengages the backrest adjuster from the backrest adjustment slot, allowing for rotation and positioning adjustment. The backrest adjustment slot has three positions, allowing for arbitrary adjustment.

[0008] Preferably, the positioning and moving assembly includes a foot pedal, a positioning slider, a positioning element, a positioning element compression spring, a rear positioning element, a base support sliding tube, a brake lever, a brake pipe, a rear wheel assembly, and a front wheel assembly. The positioning slider is mounted on the base support sliding tube, and a rear positioning element is mounted on the positioning slider. A sliding sleeve is connected to the base support sliding tube via the positioning slider. A positioning element is installed in the middle of the positioning slider. The positioning slider, the positioning element, and the positioning element compression spring form a front-rear sliding assembly. A foot pedal is mounted on the left side of the base support sliding tube, and the front wheel assembly is movably connected to the bottom of the foot pedal. The rear wheel assembly is connected to the right side of the base support sliding tube, and a brake pipe is installed between the two rear wheel assemblies. A brake lever is mounted on the brake pipe. The sliding sleeve rotates on the positioning slider, while the positioning slider slides on the base support sliding tube, which can fold the front foot tube. The rear positioning element is inserted into the base support sliding tube to position the front-rear sliding assembly so that it cannot move. The rear wheel assembly and the front wheel assembly facilitate the movement of the equipment. Pressing the brake lever activates the braking function.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: the push handle assembly rotates on the front foot assembly, while the front foot assembly slides back and forth and folds forward and rotates. The seat frame assembly folds up. Based on the principle of small adjacent gaps, stability, and triangular principle, it is firmly supported. It slides back and forth in the bottom support tube sleeve, making the strength more stable and more durable. The whole vehicle automatically folds up when the button is released. The folded volume is small and the stability is strong. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the structure of this utility model when folded;

[0012] Figure 3 This is a structural schematic diagram of the push handle assembly and front foot assembly of this utility model;

[0013] Figure 4 This is a structural schematic diagram of the push handle assembly and other components of this utility model;

[0014] Figure 5 This is a structural schematic diagram of the front canopy tube and other components of this utility model;

[0015] Figure 6 This is a structural schematic diagram of the front foot tube and other components of this utility model;

[0016] Figure 7 This is a structural schematic diagram of the frame assembly and other components of this utility model;

[0017] Figure 8 This is a schematic diagram of the positioning and moving component of this utility model;

[0018] The attached diagram shows the following markings: 1. Double lock button; 2. Handlebar button; 3. Extension gear; 4. Upper handlebar folding; 5. Stowage positioning component; 6. Folding gear; 7. Lower handlebar folding; 8. Front canopy tube; 9. Handlebar; 10. Large joint component; 11. Sliding sleeve; 12. Front leg tube; 13. Rear leg tube; 14. Seat frame tube; 15. Foot pedal adjustment component; 16. Support frame plate; 17. Front armrest assembly; 18. Foot pedal; 19. Positioning sliding component; 20. Positioning component; 21. Positioning component compression spring; 22. Rear positioning component; 23. Base support sliding tube; 24. Brake lever; 25. Brake tube; 26. Rear wheel assembly; 27. Front wheel assembly; 28. Backrest adjustment component; 29. ​​Backrest positioning component. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0020] like Figures 1 to 8 As shown, a double-lock button 1 is installed on the upper part of the handlebar 9, and a handlebar button 2 is installed on the double-lock button 1. The handlebar button 2 is connected to a rope, which is located inside the handlebar 9. The lower part of the handlebar 9 is connected to the upper handlebar folding 4 by rivets. A tension gear 3 is installed in the middle of the upper handlebar folding 4, and the tension gear 3 is connected to the rope. The folding positioning piece 5 is installed on the upper handlebar folding 4. The front canopy tube 8 is connected to the upper handlebar folding 4. A large joint piece 10 is installed on the front leg tube 12, and a [missing information - likely a component or part] is installed between the left sides of the two front leg tubes 12. The sliding sleeve 11 and the right side of the front leg tube 12 are connected to the lower handlebar folding 7 by rivets. A folding gear 6 is installed inside the lower handlebar folding 7, allowing the folding positioning piece 5 to be inserted into the corresponding slot of the folding gear 6 for rotational connection. The lower handlebar folding 7 is connected to the upper handlebar folding 4. The rear leg tube 13 is connected to the front leg tube 12 by rivets via a large joint 10. The upper part of the rear leg tube 13 is connected to the front armrest assembly 17. The large joint 10 is connected to the support frame piece 16 by rivets, allowing it to rotate. The support frame piece 16 is connected to the seat... The frame tube 14 is connected by rivets, allowing it to rotate. The seat frame tube 14 and the rear foot tube 13 are also connected by rivets, allowing them to rotate. A backrest rod is connected to the seat frame tube 14 via a backrest positioning piece 29. A backrest adjustment piece 28 is installed at the top of the backrest rod. The backrest positioning piece 29 has three backrest adjustment slots. A foot pedal adjustment piece 15 is installed at the left end of the seat frame tube 14. A positioning sliding piece 19 is installed on the base support sliding tube 23. A rear positioning piece 22 is installed on the positioning sliding piece 19. (The last sentence appears to be incomplete and possibly refers to a sliding sleeve.) 11 is connected to the bottom support sliding tube 23 via the positioning sliding member 19. The positioning member 20 is installed in the middle of the positioning sliding member 19. The positioning sliding member 19, the positioning member 20 and the positioning member compression spring 21 form a front and rear sliding assembly. The foot pedal 18 is installed on the left side of the bottom support sliding tube 23. The bottom of the foot pedal 18 is movably connected to the front wheel assembly 27. The right side of the bottom support sliding tube 23 is connected to the rear wheel assembly 26. The brake pipe 25 is installed between the two rear wheel assemblies 26. The brake lever 24 is installed on the brake pipe 25.

[0021] First, press the double-lock button 1, then press the handlebar button 2. The handlebar button 2 pulls the rope, which in turn pulls the extension gear 3. This causes the extension gear 3 to move the upper sloping section of the upper handlebar folding 4 back and forth. The front canopy tube 8 can rotate on the upper handlebar folding 4. Because the folding positioning component 5 remains stationary in the groove of the upper handlebar folding 4, when the front leg tube 12 and handlebar 9 rotate, the folding positioning component 5 drives the folding gear 6 to rotate, enabling folding. The rear leg tube 13 is rotatably connected to the large joint component 10, which is rotatably connected to the support frame plate 16, and the support frame plate 16 is rotatably connected to the seat frame tube 14. It is highly flexible and easy to fold and store. When the backrest adjustment piece 28 is lifted down by hand, the backrest adjustment piece 28 is disengaged from the backrest adjustment groove by pulling the rope. Then it can be rotated and positioned for adjustment. The backrest adjustment groove has three positions and can be adjusted arbitrarily. The sliding sleeve 11 rotates on the positioning sliding piece 19, and at the same time, the positioning sliding piece 19 slides on the bottom support sliding tube 23, which can fold the front leg tube 12. The rear positioning piece 22 is inserted into the bottom support sliding tube 23 to position the front and rear sliding components so that they cannot move. The rear wheel set 26 and the front wheel set 27 can easily drive the equipment to move. Stepping on the brake lever 24 can complete the braking function.

[0022] like Figures 1 to 8 As shown, the multifunctional folding trolley of this utility model, when in operation, first press the double-lock button 1, and at the same time press the handle button 2 with your finger. When the handle button 2 moves, it drives the tension gear 3 to disengage the handle assembly from the lower handle folding 7. Then, push the handle 9 forward with your hand to make the handle 9 rotate. At this time, the folding positioning component 5 rotates and drives the front leg tube 12. Then, the front leg tube 12 drives the positioning component 20 to disengage from the groove of the bottom support sliding tube 23, so that the front and rear sliding components slide back and forth. At this time, the front leg tube 12 moves down, the handle 9 folds forward and moves forward and downward and rotates. At the same time, the rear leg tube 13 intersects with the bottom support sliding tube with rivets and can rotate. At this time, the front leg tube and the rear leg tube 13 fold down, the positioning component 20 moves forward, and the whole trolley folds.

[0023] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A multi-functional folding stroller, characterized in that, It includes a push handle assembly, a front foot assembly, a seat frame assembly, and a positioning and moving assembly. The push handle assembly is connected to the front foot assembly, the front foot assembly is connected to the seat frame assembly, and the seat frame assembly is connected to the positioning and moving assembly. The push handle assembly includes a double-lock button (1), a handlebar button (2), a tension gear (3), an upper handlebar folding mechanism (4), a folding positioning component (5), a front canopy tube (8), and a handlebar (9). The upper part of the handlebar (9) is equipped with a double-lock button (1), and the handlebar button (2) is installed on the double-lock button (1). The handlebar button (2) is connected to a rope, which is located inside the handlebar (9). The lower part of the handlebar (9) is connected to the upper handlebar folding mechanism (4) by a rivet. The middle part of the upper handlebar folding mechanism (4) is equipped with a tension gear (3), which is connected to a rope. The folding positioning component (5) is installed on the upper handlebar folding mechanism (4), and the front canopy tube (8) is connected to the upper handlebar folding mechanism (4). The front foot assembly includes a folding gear (6), a lower handlebar fold (7), a large joint (10), a sliding sleeve (11), and a front foot tube (12). The large joint (10) is installed on the front foot tube (12), and the sliding sleeve (11) is installed between the left sides of the two front foot tubes (12). The right side of the front foot tube (12) is connected to the lower handlebar fold (7) by a rivet. The folding gear (6) is installed inside the lower handlebar fold (7), so that the folding positioning part (5) is inserted into the corresponding groove of the folding gear (6) to rotate and connect. The lower handlebar fold (7) is connected to the upper handlebar fold (4).

2. The multi-functional folding trolley as described in claim 1, characterized in that, The seat frame assembly includes a rear leg tube (13), a seat frame tube (14), a foot pedal adjustment component (15), a support frame piece (16), a front armrest assembly (17), a backrest adjustment component (28), and a backrest positioning component (29). The rear leg tube (13) is connected to the front leg tube (12) by rivets via a large joint (10). The front armrest assembly (17) is connected to the upper part of the rear leg tube (13). The large joint (10) is connected to the support frame piece (16) by rivets, so it can... The support frame (16) is connected to the seat frame tube (14) by rivets, so it can rotate. The seat frame tube (14) is connected to the rear foot tube (13) by rivets, so it can rotate. The seat frame tube (14) is connected to the backrest rod by the backrest positioning piece (29). The backrest rod has a backrest adjustment piece (28) installed on its top. The backrest positioning piece (29) has three backrest adjustment slots. The left end of the seat frame tube (14) is equipped with a foot pedal adjustment piece (15).

3. The multi-functional folding trolley as described in claim 1, characterized in that, The positioning and moving assembly includes a foot pedal (18), a positioning slide (19), a positioning element (20), a positioning element compression spring (21), a rear positioning element (22), a bottom support sliding tube (23), a brake lever (24), a brake pipe (25), a rear wheel assembly (26), and a front wheel assembly (27). The positioning slide (19) is mounted on the bottom support sliding tube (23), and the rear positioning element (22) is mounted on the positioning slide (19). The sliding sleeve (11) connects to the bottom support sliding tube (23) via the positioning slide (19). The connecting and positioning sliding part (19) is equipped with a positioning part (20) in the middle. The positioning sliding part (19), the positioning part (20) and the positioning part compression spring (21) form a front and rear sliding assembly. The foot pedal (18) is installed on the left side of the bottom support sliding tube (23). The foot pedal (18) is movably connected to the bottom of the front wheel assembly (27). The rear wheel assembly (26) is connected to the right side of the bottom support sliding tube (23). The brake tube (25) is installed between the two rear wheel assemblies (26). The brake lever (24) is installed on the brake tube (25).

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