Rear wheel carrier folding structure of three-wheel baby carriage

Abstract

The utility model discloses a rear wheel carrier folding structure of a three-wheel baby carriage, which comprises a frame, a rear wheel carrier and a rear wheel, the rear wheel is rotatably connected onto the rear wheel carrier, a sleeve is arranged on the frame, the rear wheel carrier is rotatably arranged in the sleeve, and a press type locking device is arranged at the joint of the rear wheel carrier and the sleeve. The foldable rear wheel frame is arranged on the frame, then the rear wheel is arranged on the rear wheel frame, and the rear wheel continues to be a foldable mechanism, so that the occupied folding space can be reduced.

Description

Technical Field

[0001] This utility model relates to a folding structure for the rear wheel frame of a three-wheeled children's vehicle. Background Technology

[0002] Existing foldable tricycles all use a self-folding rear wheel mechanism, meaning only the rear wheel folds on the frame. Therefore, even when folded, they still occupy a significant amount of space. This application addresses this by incorporating a foldable rear wheel bracket on the frame, mounting the rear wheel on this bracket, and maintaining the foldable mechanism for the rear wheel itself. This reduces the space occupied when folded. Summary of the Invention

[0003] This utility model provides a folding structure for the rear wheel frame of a three-wheeled children's vehicle to solve the problems existing in the prior art.

[0004] The technical solutions adopted in this utility model are as follows:

[0005] A folding rear wheel frame structure for a three-wheeled children's vehicle includes a frame, a rear wheel frame, and a rear wheel. The rear wheel is rotatably connected to the rear wheel frame. A sleeve is provided on the frame, and the rear wheel frame is rotatably disposed within the sleeve. A push-type locking device is provided at the junction of the rear wheel frame and the sleeve.

[0006] Furthermore, the push-button locking device includes a second pin, a second spring, and a button. A guide hole is provided on the rear wheel frame, the second pin is elastically supported in the guide hole by the second spring, a locking hole is provided on the sleeve, the button is located on the outer wall of the sleeve, and the end of the second pin passes through the locking hole and abuts against the button.

[0007] This utility model has the following beneficial effects:

[0008] This invention features a foldable rear wheel bracket on the vehicle frame, with the rear wheel mounted on the bracket while maintaining the foldable mechanism, thereby reducing the space occupied by folding. Attached Figure Description

[0009] Fig. 1 This is a structural diagram of the present invention.

[0010] Fig. 2 This is a structural diagram of the present invention after folding.

[0011] Fig. 3 This is a diagram of the folding structure between the rear wheel frame and the chassis. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] like Figs. 1 to 3The utility model discloses a rear wheel frame folding structure of three-wheel baby carriage, including frame 1, rear wheel frame 7 and rear wheel 4, and the rear wheel 4 rotationally connects on the rear wheel frame 7, and the folding structure between the rear wheel frame 7 and frame 1 is: be equipped with sleeve 11 on frame 1, and the rear wheel frame 7 rotationally sets up in sleeve 11, and be equipped with presser type lock 9 at the joint of rear wheel frame 7 and sleeve 11.

[0014] Presser type lock 9 includes second pin shaft 91, second spring 92 and button 93, is equipped with guide hole 70 on the rear wheel frame 7, and second pin shaft 91 is elastically supported in guide hole 70 through second spring 92, is equipped with locking hole on sleeve 11, and button 93 is located on the outer wall of sleeve 11 and is placed outside locking hole, and the end of second pin shaft 91 passes through locking hole and is in contact on button 93.

[0015] When needing to bend the rear wheel frame 7, press button 93 to make second pin shaft 91 separate from locking hole on sleeve 11, then can rotate rear wheel frame 7. When the rear wheel frame 7 resets, rotate the rear wheel frame 7, and after hearing "click", it represents that second pin shaft 91 falls into locking hole on sleeve 11 again.

[0016] The above-mentioned only is the preferred implementation of the utility model, should point out, for the ordinary skill in the art of the present technology, on the premise of not departing from the principle of the utility model, still can make a number of improvements, these improvements also should be regarded as the protection range of the utility model.

Claims

1. A folding rear wheel frame structure for a three-wheeled children's vehicle, comprising a frame (1), a rear wheel frame (7), and a rear wheel (4), wherein the rear wheel (4) is rotatably connected to the rear wheel frame (7), characterized in that: The frame (1) is provided with a sleeve (11), the rear wheel frame (7) is rotatably disposed in the sleeve (11), and a push-type lock (9) is provided at the junction of the rear wheel frame (7) and the sleeve (11).

2. The rear wheel frame folding structure of the tricycle as described in claim 1, characterized in that: The push-type locking device (9) includes a second pin (91), a second spring (92) and a button (93). A guide hole (70) is provided on the rear wheel frame (7). The second pin (91) is elastically supported in the guide hole (70) by the second spring (92). A locking hole is provided on the sleeve (11). The button (93) is located on the outer wall of the sleeve (11). The end of the second pin (91) passes through the locking hole and abuts against the button (93).

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