Large joint mechanism capable of being folded back and forth quickly and being lifted directly to walk

Abstract

The utility model relates to the technical field of frame large joints, and discloses a large joint mechanism capable of being folded back and forth quickly and being directly lifted to walk, which comprises a rear foot joint, a front foot joint, a handle joint and a folding connecting rod assembly, and a folding connecting piece, a handle bayonet lock spring and a handle bayonet lock are respectively arranged in the rear foot joint. The front foot joint and the rear foot joint are rotationally connected, a first reinforcing piece is arranged on the front foot joint, and a pin is arranged between the connecting piece and the first reinforcing piece. The handle joint is rotationally connected with the rear foot joint, and the interior of the handle joint is fixedly connected with a second reinforcing piece through a self-tapping screw. The stroller folding connecting rod assembly comprises a seat clamping base rotationally connected with the rear foot joint, a stroller folding rotating disc is arranged on the stroller folding rotating disc iron sheet, and a stroller folding connecting rod is arranged on the stroller folding connecting rod inner plug. According to the baby stroller frame, the problems that when an existing baby stroller frame is folded, operation is troublesome, and carrying is inconvenient are effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle frame joint technology, and in particular to a joint mechanism that can quickly retract the vehicle front and rear and carry it directly. Background Technology

[0002] The major joints of a baby stroller frame refer to the joint structures connecting the front and rear legs of the stroller. These typically include a front hinge and a rear hinge, connected by a linkage plate and a connecting shaft. This joint structure design allows the stroller to be smaller when folded, making it easier to carry and store.

[0003] Existing stroller frames typically use specific structural designs such as linkage plates and connecting shafts to achieve folding, which is not only cumbersome to operate, but also inconvenient to carry after folding, thus reducing the practicality of the device. To address this, we provide a large joint mechanism that allows for quick forward and backward folding and direct carrying. Utility Model Content

[0004] To address the problems of cumbersome operation and inconvenience in carrying existing baby stroller frames when folded, as mentioned in the background, this invention provides a large joint mechanism that allows for quick front and rear folding and direct carrying.

[0005] This utility model is achieved by the following technical solution: a large joint mechanism that can quickly fold up and down the vehicle and be carried directly, including a rear foot joint, a front foot joint, a handlebar joint, and a folding linkage assembly. The rear foot joint is provided with a folding connector, a handlebar locking spring, and a handlebar locking pin. A rear foot joint locking pin cover is fixedly connected to the rear foot joint by a self-tapping screw.

[0006] The forefoot joint and the rearfoot joint are rotatably connected, and a reinforcing plate is provided on the forefoot joint. A connecting piece is provided on the reinforcing plate, and a pin is provided between the connecting piece and the reinforcing plate.

[0007] The handle joint is rotatably connected to the rear foot joint, and a reinforcing plate two is fixedly connected inside the handle joint by a self-tapping screw. A spring is provided on the reinforcing plate two. A handle joint cover is fixedly connected to the handle joint, and a round cover is also fixedly connected to the handle joint.

[0008] The traction linkage assembly includes a seat bracket that is rotatably connected to the rear foot joint. A traction turntable is provided on the seat bracket. A traction turntable is provided on the traction turntable. A traction turntable spring is connected to the traction turntable via a spring core. A traction linkage inner plug is also provided on the traction turntable. A traction linkage is provided on the traction linkage inner plug.

[0009] As a further improvement to the above solution, two sets of nuts are provided on the rear foot joint, the front foot joint, and the handle joint.

[0010] As a further improvement to the above solution, both the spring and the turntable spring are designed with an arc-shaped structure.

[0011] As a further improvement to the above solution, the second reinforcing piece is designed as a disc-shaped structure.

[0012] As a further improvement to the above solution, the seat chock has a disc-shaped structure design, and the folding turntable and the folding turntable itself have similar ring-shaped structures.

[0013] As a further improvement to the above solution, the retracting linkage is a U-shaped structure and is a hollow structure.

[0014] As a further improvement to the above solution, the inner diameter of the retraction link is matched with the diameter of the retraction link inner plug.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model uses a folding linkage to drive the folding turntable to rotate, which in turn drives the folding turntable to rotate. When the folding turntable rotates, the handlebar latch slides, and when the handlebar latch slides, the handlebar joint rotates with the assistance of a spring. When the handlebar joint rotates, it can be folded in conjunction with the folding connector and connecting piece, which not only simplifies the folding operation of the frame, but also makes it easy to carry the folded frame, making it highly practical.

[0017] 2. In the process of linkage between the handle joint and the front foot joint, the present invention makes the mechanism more stable through the assistance of pins and reinforcing plates, thereby further improving the practicality of the device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention after folding;

[0020] Figure 3 This is a schematic diagram of the exploded three-dimensional structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the combined structure of this utility model.

[0022] Explanation of key symbols:

[0023] 1. Rear foot joint; 2. Rear foot connector; 3. Locking spring; 4. Handlebar lock; 5. Rear foot joint lock cover; 6. Front foot joint; 7. Reinforcing plate one; 8. Connecting plate; 9. Pin; 10. Handlebar joint; 11. Reinforcing plate two; 12. Spring; 13. Handlebar joint cover; 14. Round cover; 15. Seat holder; 16. Rear foot turntable plate; 17. Rear foot turntable; 18. Rear foot turntable spring; 19. Rear foot linkage inner plug; 20. Rear foot linkage; 21. Nut; 22. Spring core. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] Example 1:

[0026] Please combine Figure 1-4 The embodiment of this invention provides a large joint mechanism that can quickly retract the vehicle in front and behind and be carried directly. It includes a rear foot joint 1. The rear foot joint 1 is provided with a retraction connector 2, a handlebar locking spring 3 and a handlebar locking pin 4. A rear foot joint locking pin cover 5 is fixedly connected to the rear foot joint 1 by self-tapping screws.

[0027] The front foot joint 6 is rotatably connected to the rear foot joint 1, and a reinforcing plate 7 is provided on the front foot joint 6. A connecting plate 8 is provided on the reinforcing plate 7, and a pin 9 is provided between the connecting plate 8 and the reinforcing plate 7.

[0028] The handle joint 10 is rotatably connected to the rear foot joint 1, and a reinforcing plate 2 11 is fixedly connected inside the handle joint 10 by a self-tapping screw. A spring 12 is provided on the reinforcing plate 2 11. A handle joint cover 13 is fixedly connected to the handle joint 10. A round cover 14 is also fixedly connected to the handle joint 10. The reinforcing plate 2 11 has a disc-shaped structure design.

[0029] The traction linkage assembly includes a seat holder 15 rotatably connected to the rear foot joint 1, a traction turntable 16 on the seat holder 15, a traction turntable 17 on the traction turntable 16, a traction turntable spring 18 connected to the traction turntable 17 via a spring core 22, a traction linkage inner plug 19 on the traction turntable 16, and a traction linkage 20 on the traction linkage inner plug 19. Both the spring 12 and the traction turntable spring 18 have an arc-shaped structure design, the seat holder 15 has a disc-shaped structure design, the traction turntable 16 and the traction turntable 17 have a similar ring-like structure design, and the traction linkage 20 has a U-shaped structure design and is hollow. The inner diameter of the traction linkage 20 matches the diameter of the traction linkage inner plug 19.

[0030] The implementation principle of the large joint mechanism in this application embodiment that can quickly fold the bicycle forward and backward and be carried directly is as follows: the folding linkage 20 drives the folding turntable iron plate 16 to rotate, so that the folding turntable iron plate 16 can drive the folding turntable 17 to rotate. When the folding turntable 17 rotates, the handlebar latch 4 can slide. When the handlebar latch 4 slides, the handlebar joint 10 can rotate with the assistance of the spring 12. When the handlebar joint 10 rotates, the front leg joint 6 can be folded in conjunction with the folding connector 2 and the connecting piece 8. This not only simplifies the folding operation of the frame, but also makes it easier to carry the folded frame. In the process of the handlebar joint 10 and the front leg joint 6 being linked, the mechanism is made more stable with the assistance of the pin 9 and the reinforcing piece 7.

[0031] Example 2:

[0032] This embodiment is an improvement on embodiment 1, wherein two sets of nuts 21 are provided on the rear foot joint 1, the front foot joint 6, and the handle joint 10 for quick connection of the stroller frame.

[0033] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A large-joint mechanism capable of quickly retracting forward and backward and being carried directly, characterized in that, include: The rear foot joint (1) is provided with a folding connector (2), a handlebar latch spring (3) and a handlebar latch (4) inside the rear foot joint (1). The rear foot joint (1) is fixedly connected with a rear foot joint latch cover (5) by self-tapping screws. A front foot joint (6) is rotatably connected to a rear foot joint (1), and a reinforcing plate (7) is provided on the front foot joint (6). A connecting plate (8) is provided on the reinforcing plate (7), and a pin (9) is provided between the connecting plate (8) and the reinforcing plate (7). Handle joint (10), the handle joint (10) is rotatably connected to the rear foot joint (1) and the inside of the handle joint (10) is fixedly connected to the reinforcing plate two (11) by self-tapping screws. The reinforcing plate two (11) is provided with a spring (12). The handle joint (10) is fixedly connected to the handle joint (10) and the handle joint (10) is also fixedly connected to the round cover (14). The traction linkage assembly includes a seat holder (15) rotatably connected to the rear foot joint (1), a traction turntable iron plate (16) is provided on the seat holder (15), a traction turntable (17) is provided on the traction turntable iron plate (16), a traction turntable spring (18) is connected to the traction turntable (17) through a spring core (22), a traction linkage inner plug (19) is also provided on the traction turntable iron plate (16), and a traction linkage (20) is provided on the traction linkage inner plug (19).

2. The large joint mechanism as described in claim 1, which allows for rapid forward and backward folding and direct carrying, is characterized in that... Two sets of nuts (21) are provided on the rear foot joint (1), the front foot joint (6), and the handle joint (10).

3. The large joint mechanism as described in claim 1, which allows for rapid forward and backward folding and direct carrying, is characterized in that... Both the spring (12) and the turntable spring (18) have an arc-shaped structure design.

4. The large joint mechanism as described in claim 1, which allows for rapid forward and backward folding and direct carrying, is characterized in that... The reinforcing plate 2 (11) is designed as a disc.

5. The large joint mechanism as described in claim 1, which allows for rapid forward and backward folding and direct carrying, is characterized in that... The seat cradle (15) has a disc-shaped structure design, and the cart return turntable (16) and cart return turntable (17) both have a similar ring-shaped structure design.

6. The large joint mechanism as described in claim 1, which allows for rapid forward and backward folding and direct carrying, is characterized in that... The retraction link (20) is a U-shaped structure and is a hollow structure.

7. The large joint mechanism as described in claim 1, which allows for rapid forward and backward folding and direct carrying, is characterized in that... The inner diameter of the retraction link (20) is matched with the diameter of the retraction link inner plug (19).

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