Folding structure of child tricycle

Abstract

The utility model relates to the technical field of folding structures, in particular to a folding structure of a child tricycle, which comprises a first support and a bent plate, the front and back of the right side of the top of the first support are fixedly connected with the bottom of the bent plate respectively, the inner wall of the bent plate is rotatably connected with the bent plate, and the bottom of the bent plate is fixedly connected with a second support. The front sides and the rear sides of the first support and the second support are connected with fixing structures correspondingly, and the bottom of the first support is connected with a butt joint structure. The first support is matched with the bent plate to turn upwards on the outer wall of the bent plate, folding of the child tricycle is achieved, the bent plate rotates downwards on the outer wall of the bent plate, the first support rotates to the original position, then the second circular plate is loosened, the spring loses pressure, resilience force is provided, and the second circular plate drives the sleeve rod to move rightwards. The right side of the outer wall of the sleeve rod is inserted into the inner wall of the straight plate, an original control mode is changed, the use danger of the folding structure of the child tricycle is eliminated, and operation of the folding structure of the child tricycle is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of folding structures of children's tricycles, and particularly relates to a folding structure of a children's tricycle. Background Art

[0002] The folding structure of a children's tricycle is to decompose the connection form of the children's tricycle, so that the volume of the children's tricycle is reduced for easy carrying and storage.

[0003] For example, a folding structure of a children's tricycle with the publication number of "CN216916164U" has a folding button vertically extending inside the sheet metal part and passing through the top of the sheet metal part. The lower end of the folding button is abutted against the bottom end inside the sheet metal part through a spring. A hook horizontally protrudes from the front end face of the folding button and passes through the sheet metal part to be hooked and positioned with the main frame. A notch for hooking the hook is formed at the rear end of the main frame. The folding structure of this children's tricycle can be folded by hinging the main frame and the rear frame of the tricycle, reducing the occupied volume, and the folding steps are simple and the operation is convenient. However, in the use of the folding structure of the children's tricycle, an old-fashioned umbrella rod control structure is adopted. This form of clamping requires pressing the buckle by hand, and it is easy for the finger pulp to get stuck in the gap at the connection, causing injury to the user, resulting in potential danger in the use of the folding structure of the children's tricycle, and the folding structure of the children's tricycle is not convenient to operate. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems that the folding structure of a children's tricycle has potential danger in use and is not convenient to operate, and to provide a folding structure of a children's tricycle.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] Design a folding structure of a children's tricycle, including a first bracket and a curved plate. The front and rear sides of the right side of the top of the first bracket are fixedly connected to the bottom of the curved plate respectively. A bent plate is rotatably connected to the inner wall of the curved plate. A second bracket is fixedly connected to the bottom of the bent plate. Fixed structures are respectively connected to the front and rear sides of the first bracket and the second bracket. A docking structure is connected to the bottom of the first bracket.

[0007] Preferably, the docking structure includes a bent rod and a first circular plate. The top of the bent rod is fixedly connected to the bottom of the first bracket. The right side of the outer wall of the bent rod is fixedly connected to the left side of the first circular plate. A straight rod is fixedly connected to the right side of the first circular plate. A sleeve rod is slidably connected to the outer wall of the straight rod. A second circular plate is fixedly connected to the left end of the outer wall of the sleeve rod. A spring is sleeved on the outer wall of the straight rod. The two ends of the spring are respectively fixedly connected to the right side of the first circular plate and the left side of the second circular plate. A straight plate is inserted into the outer wall of the sleeve rod.

[0008] Preferably, the top of the straight plate is fixedly connected to the bottom of the second bracket.

[0009] Preferably, a tricycle front frame is attached to the left side of the first bracket, and a tricycle rear frame is attached to the right side of the second bracket.

[0010] Preferably, the fixing structure includes a cross plate and a screw. The inner sides of multiple cross plates are respectively fixedly connected to the outer walls of the first bracket and the second bracket. The circular opening on the outer wall of the cross plate is threadedly connected to the outer wall of the screw, and a handle is fixedly connected to the outer side of the screw.

[0011] Preferably, the inner side of the outer wall of the screw on the left side is threadedly connected to the outer wall of the tricycle front frame, and the inner side of the outer wall of the screw on the right side is threadedly connected to the outer wall of the tricycle rear frame.

[0012] The folding structure of a children's tricycle proposed by the present utility model has the beneficial effects that: by moving the second circular plate to the left in the docking structure, at this time, the second circular plate drives the sleeve rod to move to the left on the outer wall of the straight rod, so that the right side of the outer wall of the sleeve rod disengages from the inner wall of the straight plate. Then, the first bracket cooperates with the curved plate to flip upward on the outer wall of the bent plate to realize the folding of the children's tricycle. Rotate the curved plate downward on the outer wall of the bent plate, and the first bracket rotates to its original position. Then release the second circular plate, and the spring loses pressure and provides a resilience force to drive the second circular plate to move to the right with the sleeve rod, so that the right side of the outer wall of the sleeve rod is inserted into the inner wall of the straight plate, changing the original control form, eliminating the use danger of the folding structure of the children's tricycle, and facilitating the operation of the folding structure of the children's tricycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is Figure 1 a schematic structural diagram of the connection relationship among the bent rod, the first circular plate and the straight rod in ;

[0015] Figure 3 is Figure 1 a schematic structural diagram of the connection relationship among the straight rod, the sleeve rod and the second circular plate in ;

[0016] Figure 4 is Figure 1 a schematic structural diagram of A in ;

[0017] Figure 5 is Figure 1 a schematic structural diagram of B in ;

[0018] Figure 6 is Figure 1 a schematic structural diagram of the connection relationship among the bent plate, the second bracket and the cross plate in.

[0019] In the figure: 1. First bracket; 2. Docking structure; 201. Bent rod; 202. First circular plate; 203. Straight rod; 204. Sleeve rod; 205. Second circular plate; 206. Spring; 207. Straight plate; 3. Fixing structure; 301. Cross plate; 302. Screw rod; 303. Handle; 4. Curved plate; 5. Bent plate; 6. Second bracket; 7. Front frame of tricycle; 8. Rear frame of tricycle; 9. Cushion. Detailed implementation mode

[0020] The present utility model will be further described below in conjunction with the accompanying drawings:

[0021] Embodiment 1:

[0022] Please refer to Figures 1-6 : In this embodiment, a folding structure of a children's tricycle includes a first bracket 1 and a curved plate 4. The front and rear of the right side of the top of the first bracket 1 are fixedly connected to the bottom of the curved plate 4 respectively. The inner wall of the curved plate 4 is rotatably connected with a bent plate 5. The curved plate 4 rotates through the pin shaft on the outer wall of the bent plate 5 under force. The bottom of the bent plate 5 is fixedly connected with a second bracket 6. Fixing structures 3 are respectively connected to the front and rear sides of the first bracket 1 and the second bracket 6. The bottom of the first bracket 1 is connected with a docking structure 2.

[0023] The docking structure 2 includes a bent rod 201 and a first circular plate 202. The top of the bent rod 201 is fixedly connected to the bottom of the first bracket 1. The right side of the outer wall of the bent rod 201 is fixedly connected to the left side of the first circular plate 202. The right side of the first circular plate 202 is fixedly connected with a straight rod 203. The outer wall of the straight rod 203 is slidably connected with a sleeve rod 204. The sleeve rod 204 slides left and right through the outer wall of the straight rod 203 under force. The left end of the outer wall of the sleeve rod 204 is fixedly connected with a second circular plate 205. A spring 206 is sleeved on the outer wall of the straight rod 203. The two ends of the spring 206 are respectively fixedly connected to the right side of the first circular plate 202 and the left side of the second circular plate 205. After the second circular plate 205 moves to the left under force, it rebounds through the elastic force of the spring 206. A straight plate 207 is inserted into the outer wall of the sleeve rod 204. The sleeve rod 204 can move out of the inner wall of the straight plate 207 when it moves to the left under force. The top of the straight plate 207 is fixedly connected to the bottom of the second bracket 6;

[0024] By moving the second circular plate 205 to the left in the docking structure 2, the second circular plate 205 drives the sleeve rod 204 to move to the left along the outer wall of the straight rod 203 at this time, so that the right side of the outer wall of the sleeve rod 204 disengages from the inner wall of the straight plate 207. Then, the first bracket 1 cooperates with the curved plate 4 to turn upwards along the outer wall of the bent plate 5 to realize the folding of the children's tricycle. Then, the curved plate 4 rotates downwards along the outer wall of the bent plate 5, and the first bracket 1 rotates to its original position. Then, the second circular plate 205 is released, and the spring 206 loses pressure and provides a resilience force to drive the second circular plate 205 to move to the right with the sleeve rod 204, so that the right side of the outer wall of the sleeve rod 204 is inserted into the inner wall of the straight plate 207, changing the original control form, eliminating the use risk of the folding structure of the children's tricycle, and facilitating the operation of the folding structure of the children's tricycle.

[0025] The left side of the first bracket 1 is attached to the front frame 7 of the tricycle, and the right side of the second bracket 6 is attached to the rear frame 8 of the tricycle. The fixing structure 3 includes a cross plate 301 and a screw 302. The inner sides of multiple cross plates 301 are fixedly connected to the outer walls of the first bracket 1 and the second bracket 6 respectively. The circular opening on the outer wall of the cross plate 301 is threadedly connected to the outer wall of the screw 302. The screw 302 rotates forward and backward through the circular opening on the outer wall of the cross plate 301 under force. A handle 303 is fixedly connected to the outer side of the screw 302, and the handle 303 facilitates driving the screw 302 to rotate. The inner side of the outer wall of the left screw 302 is threadedly connected to the outer wall of the front frame 7 of the tricycle, and the inner side of the outer wall of the right screw 302 is threadedly connected to the outer wall of the rear frame 8 of the tricycle.

[0026] Working principle:

[0027] Installation of the folding structure of the children's tricycle:

[0028] Make the left side of the first bracket 1 fit with the right side of the front frame 7 of the tricycle. Then, the left handle 303 drives the left screw 302 to threadedly pass through the left cross plate 301 and be threadedly connected to the front frame 7 of the tricycle. Then, the right side of the second bracket 6 fits with the left side of the rear frame 8 of the tricycle. Then, the right handle 303 drives the right screw 302 to threadedly pass through the right cross plate 301 and be threadedly connected to the rear frame 8 of the tricycle, completing the installation of the folding structure of the children's tricycle.

[0029] Folding operation of the folding structure of the children's tricycle:

[0030] Move the second circular plate 205 to the left. At this time, the second circular plate 205 drives the sleeve rod 204 to move to the left along the outer wall of the straight rod 203, so that the right side of the outer wall of the sleeve rod 204 disengages from the inner wall of the straight plate 207. Then, the first bracket 1 cooperates with the curved plate 4 to turn upward along the outer wall of the bent plate 5 to realize the folding of the children's tricycle. Then, turn the curved plate 4 downward along the outer wall of the bent plate 5. The rotating curved plate 4 drives the first bracket 1 to rotate to the original position. Then, release the second circular plate 205. The spring 206 loses pressure and provides a resilience force to drive the second circular plate 205 to move to the right with the sleeve rod 204, so that the right side of the outer wall of the sleeve rod 204 is inserted into the inner wall of the straight plate 207.

[0031] Embodiment 2:

[0032] Please refer to Figures 1-6 : In this embodiment, a folding structure of a children's tricycle further includes a cushion 9. The right side of the outer wall of the cushion 9 is fixedly connected to the left side of the second bracket 6, and the left side of the cushion 9 is fixedly connected to the right side of the first bracket 1.

[0033] Working principle:

[0034] The cushion 9 plays a role in isolating the contact between the first bracket 1 and the second bracket 6, avoiding collision when the two brackets are butted.

[0035] Although the present utility model has been illustrated and described by reference to the preferred embodiments, those skilled in the art should understand that various changes in form and details may be made within the scope of the claims.

Claims

1. A folding structure of a children's tricycle, comprising a first bracket (1) and a curved plate (4), wherein the top right side of the first bracket (1) is fixedly connected to the bottom of the curved plate (4) at the front and rear sides, respectively, and characterized in that: The inner wall of the curved plate (4) is rotatably connected to a bent plate (5), the bottom of the bent plate (5) is fixedly connected to a second bracket (6), the front and rear sides of the first bracket (1) and the second bracket (6) are respectively connected to a fixing structure (3), and the bottom of the first bracket (1) is connected to a docking structure (2).

2. The folding structure of a children's tricycle according to claim 1, characterized in that: The docking structure (2) comprises a bent rod (201) and a first circular plate (202); the top of the bent rod (201) is fixedly connected to the bottom of the first bracket (1); the right side of the outer wall of the bent rod (201) is fixedly connected to the left side of the first circular plate (202); a straight rod (203) is fixedly connected to the right side of the first circular plate (202); the outer wall of the straight rod (203) is slidably connected to a sleeve rod (204); the left end of the outer wall of the sleeve rod (204) is fixedly connected to a second circular plate (205); the outer wall of the straight rod (203) is sleeved with a spring (206); the two ends of the spring (206) are respectively fixedly connected to the right side of the first circular plate (202) and the left side of the second circular plate (205); and the outer wall of the sleeve rod (204) is plugged with a straight plate (207).

3. The folding structure of a children's tricycle according to claim 2, characterized in that: The top of the straight plate (207) is fixedly connected to the bottom of the second bracket (6).

4. The folding structure of a children's tricycle according to claim 1, characterized in that: The left side of the first bracket (1) is bonded to the front frame (7) of the tricycle, and the right side of the second bracket (6) is bonded to the rear frame (8) of the tricycle.

5. The folding structure of a children's tricycle according to claim 1, characterized in that: The fixing structure (3) comprises a transverse plate (301) and a screw rod (302); the inner sides of the plurality of transverse plates (301) are respectively fixedly connected to the outer walls of the first bracket (1) and the second bracket (6); the outer circular opening of the transverse plate (301) is threadedly connected to the outer wall of the screw rod (302); and the outer side of the screw rod (302) is fixedly connected to a handle (303).

6. The folding structure of a children's tricycle according to claim 5, characterized in that: The inner side of the outer wall of the screw rod (302) on the left side is threadedly connected to the outer wall of the front frame (7) of the tricycle, and the inner side of the outer wall of the screw rod (302) on the right side is threadedly connected to the outer wall of the rear frame (8) of the tricycle.

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