Auxiliary wheel of child bicycle

Abstract

The utility model discloses a child bicycle auxiliary wheel, which comprises a connecting handle and an auxiliary wheel, the auxiliary wheel is fixedly connected to a bicycle rear wheel through the connecting handle, the connecting handle comprises a connecting part and a supporting part, the supporting part is connected to the bicycle rear wheel through the connecting part, a containing part and a rotating part are arranged in the supporting part, and the rotating part is connected with the connecting part. The rotating piece is connected with a connecting rod, the connecting rod is connected to the auxiliary wheel, the rotating piece drives the connecting rod to be placed in or leave the containing part, the rotating piece comprises a first main body and a second main body, the first main body and the second main body are of a relative rotation structure, the first main body is fixedly connected to the supporting part, and the second main body is fixedly connected to the supporting part. A connecting rod is arranged in the second main body, an elastic piece is arranged on the first main body, and an opening for accommodating the elastic piece is formed in the supporting part. The auxiliary wheel is high in adjustability, due to the design of the rotating piece and the connecting rod in the supporting part, the auxiliary wheel can be detached according to needs, the connecting rod can be contained in the supporting part, and occupied space is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of children's bicycle accessories, in particular to a children's bicycle auxiliary wheel. BACKGROUND

[0002] The children's bicycle auxiliary wheel is an important auxiliary device for children learning to ride a bicycle, which can provide additional support and balance for children and help them better master the riding skills. However, the existing children's bicycle auxiliary wheel has some problems in the process of use, such as inconvenient installation, poor stability, short service life, etc. These problems not only affect the learning effect of children, but also may pose a threat to their safety. SUMMARY

[0003] The utility model aims at solving the problems of the existing children's bicycle auxiliary wheel, such as inconvenient installation, poor stability, short service life, etc., and provides a children's bicycle auxiliary wheel with reasonable structure, convenient use and high stability.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0005] A children's bicycle auxiliary wheel, comprising a connecting handle and an auxiliary wheel, wherein the auxiliary wheel is fixedly connected to the rear wheel of the bicycle by the connecting handle, the connecting handle comprises a connecting part and a supporting part, the supporting part is connected to the rear wheel of the bicycle by the connecting part, a containing part and a rotating piece are arranged in the supporting part, a connecting rod is connected to the rotating piece, the connecting rod is connected to the auxiliary wheel, the rotating piece drives the connecting rod to enter or leave the containing part, the rotating piece comprises a first body and a second body, the first body and the second body are structures that can rotate relative to each other, wherein the first body is fixedly connected to the supporting part, the connecting rod is arranged in the second body, an elastic piece is arranged on the first body, and an opening for accommodating the elastic piece is arranged on the supporting part.

[0006] Further, a hole is arranged at the top end of the supporting part, a bolt is arranged in the connecting part, the bolt passes through the connecting part to fix the connecting part to the rear wheel of the bicycle, and the connecting part is tightly connected to the rear wheel of the bicycle through the fixing effect of the bolt, thereby ensuring the stability of the auxiliary wheel.

[0007] Further, a circular patch is arranged on the surface of the hole, which can prevent foreign matter from entering the inside of the hole, protect the internal structure from being damaged, and prolong the service life.

[0008] Further, the containing part is a cavity recessed towards the inside of the supporting part, and the design of the cavity provides sufficient space for the connecting rod to smoothly enter or leave the containing part.

[0009] Further, the openings, the accommodating portions and the rotating members are arranged from top to bottom on the support portion, which makes the structure more compact and facilitates operation and maintenance.

[0010] Further, the connecting rod is located in the accommodating portion, and a gap is arranged between the top end of the connecting rod and the inner wall of the accommodating portion, which makes the connecting rod have a certain range of movement in the accommodating portion and facilitates adjustment of the position of the auxiliary wheel.

[0011] Further, the connecting portion is threadedly connected with the rear wheel, and the threaded connection is simple and reliable, facilitating installation and disassembly.

[0012] Further, the hub of the auxiliary wheel is provided with a mounting and dismounting portion, and the mounting and dismounting portion is provided with a circular arc surface, which makes the mounting and dismounting portion more closely contact with the wheel and improves stability.

[0013] Further, the outer surface of the auxiliary wheel is provided with a dustproof cover plate, which can effectively prevent dust and sundries from entering the inside of the auxiliary wheel, protect the internal structure and prolong the service life.

[0014] The utility model provides a kind of auxiliary wheel of children bicycle, with the following beneficial effects:

[0015] 1. Easy to install: through the bolt fixation of connecting portion and rear wheel, and the threaded connection of connecting rod and connecting portion, the installation and disassembly of auxiliary wheel are more convenient.

[0016] 2. High adjustability: the design of rotating member in support portion and connecting rod makes auxiliary wheel can be disassembled as needed, and connecting rod can be retracted into support portion, reducing space occupation, further expanding storage function, facilitating transportation and handling.

[0017] 3. Long service life: by setting circular patch on opening surface and dustproof cover plate on the outer surface of auxiliary wheel, the entry of sundries and dust is effectively prevented, the internal structure is protected, and the service life is prolonged.

[0018] 4. Reasonable structure: the overall structure is compactly designed, and each component is reasonably arranged, facilitating operation and maintenance. DETAILED DESCRIPTION

[0019] Figure 1 It is one of the utility model three-dimensional view.

[0020] Figure 2 It is the second three-dimensional view of the utility model.

[0021] Figure 3 It is the three-dimensional view of support portion and connecting portion in the utility model.

[0022] Figure 4This is a front view of the support and connecting parts in this utility model.

[0023] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0024] Figure 6 This is a side view of the support and connecting parts in this utility model.

[0025] Figure 7 This is a schematic diagram of the unfolded connecting rod in this utility model.

[0026] Figure 8 for Figure 7 Enlarged view of section B in the middle.

[0027] Figure 9 This is a schematic diagram of the second main body covering the notch after rotation in this utility model.

[0028] Figure 10 This is one of the schematic diagrams of the auxiliary wheel in this utility model.

[0029] Figure 11 This is the second schematic diagram of the auxiliary wheel in this utility model. Detailed Implementation

[0030] The technical solutions in the embodiments of this utility model will now be clearly and completely described in conjunction with the accompanying drawings.

[0031] This utility model embodiment provides a children's bicycle training wheel, such as... Figures 1-6 As shown, it includes a connecting handle 1 and an auxiliary wheel, wherein the auxiliary wheel is fixedly connected to the rear wheel of the vehicle by the connecting handle 1. The connecting handle 1 includes a connecting part 11 and a supporting part 12. The supporting part 12 is connected to the rear wheel of the vehicle by the connecting part 11. The supporting part 12 is provided with a receiving part 121 and a rotating member 122. A connecting rod 2 is connected to the rotating member 122 and is connected to the auxiliary wheel. The connecting rod 2 can be inserted into or removed from the receiving part 121.

[0032] Furthermore, an opening is provided at the top of the support part 12, and a bolt is installed inside the connecting part 11. The bolt passes through the connecting part 11 and fixes the connecting part 11 to the rear wheel of the vehicle. Bolt connection is a common choice for general use, with low processing difficulty and convenient operation. In addition, a circular patch 5 is provided on the surface of the opening. The circular patch 5 is placed on the surface of the opening to prevent debris from entering and protect the internal structure. It can also prevent water stains during riding, prevent rust, and extend service life. The receiving part 121 is a cavity recessed into the support part 12. The opening, receiving part 121, and rotating part 122 are distributed on the support part 12 from top to bottom. This distribution method conforms to normal assembly logic. After the connecting handle 1 in this embodiment is installed, it is convenient for the operator to use.

[0033] Furthermore, the connecting rod 2 is located inside the receiving part 121, and the connecting rod 2 is of moderate size, making it easy to store.

[0034] like Figures 7-9 As shown, the structure and principle of the rotating component 122 are as follows: it includes a first main body 1221 and a second main body 1222. The first main body 1221 and the second main body 1222 are structures that rotate relative to each other. The first main body 1221 is fixedly connected to the support part 12 and a connecting rod 2 is installed inside it. An elastic element 3 is provided on the second main body 1222, and an opening 4 for accommodating the elastic element 3 is provided on the support part 12.

[0035] The first body 1221 is responsible for fixing the connecting rod 2. The tail end of the connecting rod 2 is placed in the notch of the first body 1221 and fixed with bolts, which is a common existing technology. After fixing, it supports rotation in a direction perpendicular to the plane of the rear wheel. When the connecting rod 2 is rotated out of the receiving part 121, it can slowly descend to a horizontal state. An auxiliary wheel can be installed at the head end of the connecting rod 2.

[0036] The second main body 1222 is responsible for stabilizing the connecting rod 2. When the connecting rod 2 descends to a horizontal position, rotating the second main body 1222 causes the elastic element 3 on the second main body 1222 to slide into the opening 4 on the support part 12, thus ending the rotation process. At this time, the second main body 1222 covers the notch on the first main body 1221, limiting the vertical displacement of the tail of the connecting rod 2, so that the auxiliary wheel will not sway up and down during driving. The elastic element 3 can be a metal spring with specific reinforcement to prevent breakage during use. When it is necessary to put the connecting rod 2 back into the receiving part 121, the elastic element 3 is operated in the opposite direction to pull it out of the opening 4. Rotating the second main body 1222 exposes the notch again, allowing the connecting rod 2 to be rotated and stored back into the receiving part 121.

[0037] A gap is provided between the top of the connecting rod 2 and the inner wall of the receiving part 121, which can accommodate the operator's fingers and facilitate the operator to put the connecting rod 2 up and down.

[0038] The working principle of this utility model is as follows:

[0039] The connecting part 11 is fixed to the rear wheel bolt of the bicycle, which is a standard choice in the industry. At this time, the connecting handle 1 is also fixed to the rear wheel.

[0040] When the connecting rod 2 needs to be unfolded, the top end of the connecting rod 2 is pressed and an outward force is applied, the first body 1221 of the rotating part 122 is fixed on the supporting part 12, the connecting rod 2 is arranged in the supporting part 12, the connecting rod 2 is rotated to leave the accommodating part 121 and to a horizontal state, thereby achieving the installation of the auxiliary wheel. At this time, the second body 1222 is rotated again, the gap of the first body 1221 is covered (the gap is opened by default in the above-mentioned state), the elastic part 3 is arranged on the second body 1222, the second body 1222 is rotated, the elastic part 3 is fixed in the opening 4 on the supporting part 12, and the normal work of the connecting rod 2 is ensured.

[0041] When the connecting rod 2 needs to be stored, the elastic part 3 is moved out of the opening 4, and the above-mentioned steps are reversed.

[0042] As shown in Figure 10 Further, the hub of the auxiliary wheel is provided with a detachable part 6, the detachable part 6 is provided with a circular arc surface, the detachable part 6 surrounds the hub and is held by one hand of an adult, when the connecting rod 2 is in a horizontal state, the detachable part 6 is held and the auxiliary wheel is rotated to be threadedly connected with the connecting rod 2, and after installation, the auxiliary wheel can be normally used.

[0043] When the auxiliary wheel needs to be disassembled and stored, for example, the transportation capacity of children's bicycles in a single container is increased, or the auxiliary wheel is placed in a small storage space at home, in order to reduce the transverse space occupation, the tire can be disassembled, and the entire connecting handle 1 does not need to be disassembled. The connecting handle 1 needs to be disassembled under normal circumstances, which is not a convenient choice, but the connecting part 11 of the product is very small, the supporting part 12 is perpendicular to the ground, the connecting rod 2 is folded, and the transverse space occupation is very small, which has great practicality.

[0044] As shown in Figure 11 The outer surface of the auxiliary wheel is provided with a dust cover 7. The dust cover 7 is arranged on the outer surface of the auxiliary wheel, further preventing dust and sundries from entering and prolonging the service life. The installation mode is a buckle type, the buckle of the dust cover 7 can be directly pressed and an outward force is applied to open.

[0045] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A children's bicycle training wheel, comprising a connecting handle (1) and a training wheel, wherein the training wheel is fixedly connected to the rear wheel by the connecting handle (1), characterized in that, The connecting handle (1) includes a connecting part (11) and a supporting part (12). The supporting part (12) is connected to the rear wheel of the vehicle by the connecting part (11). The supporting part (12) is provided with a receiving part (121) and a rotating part (122). A connecting rod (2) is connected to the rotating part (122). The connecting rod (2) is connected to the auxiliary wheel. The rotating part (122) drives the connecting rod (2) to be placed into or away from the receiving part (121). The rotating part (122) includes a first body (1221) and a second body (1222). The first body (1221) and the second body (1222) are structures that rotate relative to each other. The first body (1221) is fixedly connected to the supporting part (12). The connecting rod (2) is installed in the second body (1222). An elastic element (3) is provided on the first body (1221). The supporting part (12) is provided with an opening (4) for receiving the elastic element (3).

2. The child bicycle training wheel as described in claim 1, characterized in that, The top of the support part (12) is provided with an opening, and a bolt is provided in the connecting part (11). The bolt passes through the connecting part (11) to fix the connecting part (11) to the rear wheel of the vehicle.

3. The child bicycle training wheel as described in claim 2, characterized in that, A circular patch (5) is provided on the surface of the opening.

4. A children's bicycle training wheel as described in claim 3, characterized in that, The receiving part (121) is a cavity recessed inside the supporting part (12).

5. A children's bicycle training wheel as described in claim 4, characterized in that, The opening, receiving part (121), and rotating part (122) are distributed from top to bottom on the support part (12).

6. A children's bicycle training wheel as described in claim 1, characterized in that, The connecting rod (2) is located inside the receiving part (121), and a gap is provided between the top end of the connecting rod (2) and the inner wall of the receiving part (121).

7. A children's bicycle training wheel as described in claim 1, characterized in that, The connecting part (11) is threadedly connected to the rear wheel of the vehicle.

8. A children's bicycle training wheel as described in claim 1, characterized in that, The auxiliary wheel has a loading and unloading part (6) on its hub, and the loading and unloading part (6) has an arc surface.

9. A children's bicycle training wheel as described in claim 8, characterized in that, The outer surface of the auxiliary wheel is provided with a dust cover plate (7).

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