A children's bicycle with quick release structure of auxiliary wheel

Abstract

The utility model provides a kind of children's bicycle with auxiliary wheel quick-release structure, it is related to auxiliary wheel dismounting technical field, including positioning connection fixed link and quick positioning plug-in quick-release mechanism, recessed auxiliary positioning arc groove is set up in the inside of side positioning auxiliary hole, auxiliary positioning arc groove can be conveniently inserted and fixed by the elastic telescopic positioning assembly of two sides of lower end setting, and the circular of first insertion hole set up in upper end with the side positioning auxiliary hole of side set up is same axis, when fixed plug-in support rod is fixed by the elastic telescopic positioning assembly of both sides fixed connection and the side positioning auxiliary hole of hollow steel sleeve, simultaneously, first insertion hole and second insertion hole are also simultaneously corresponding, by the insertion and fixation of the plug-in fixed bolt of lower end with first insertion hole and second insertion hole being simultaneously inserted and fixed by inner hollow plug-in support rod, the insertion and fixation of the hollow steel sleeve of upper side with lower end fixed plug-in support rod is inserted and fixed, realize quick positioning insertion.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary wheel disassembly technology, and in particular to a children's bicycle with an auxiliary wheel quick-release structure. Background Technology

[0002] Training wheels on children's bicycles are key components that help young children transition to independent riding. The timing of their removal directly affects the development of a child's balance. Once a child has a certain level of riding ability, the training wheels need to be removed in a timely manner to train independent balance. However, the traditional way of fixing training wheels brings many inconveniences to this process. With parents' increasing emphasis on the scientific nature of children's riding education and the popularization of humanized product design concepts, the market demand for a "convenient to disassemble and stable and reliable" way of fixing training wheels is becoming increasingly urgent. Against this backdrop, children's bicycles with quick-release training wheel structures have emerged.

[0003] Traditional training wheels are usually rigidly connected to the rear wheel axle or bracket of a bicycle by bolts. Disassembly requires tools such as screwdrivers and wrenches. Parents need to find the right tools, align the bolts in the narrow space of the bicycle, and repeatedly turn them to complete the disassembly. Moreover, the bolts are prone to rusting and jamming when exposed to the outdoors for a long time, and may even strip or break.

[0004] Therefore, we provide a children's bicycle with a quick-release auxiliary wheel structure to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a children's bicycle with a quick-release auxiliary wheel structure, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a children's bicycle with an auxiliary wheel quick-release structure, comprising a positioning connecting fixing rod and a quick-positioning plug-in quick-release mechanism, wherein the quick-positioning plug-in quick-release mechanism is provided on the lower side of the positioning connecting fixing rod; The quick-positioning plug-in quick-release mechanism includes a fixed positioning hollow plug-in assembly, a plug-in assembly, a plug-in quick-release assembly, an elastic telescopic positioning assembly, and an auxiliary wheel support assembly. The fixed positioning hollow plug-in assembly is provided on the lower side of the positioning connecting rod, the plug-in assembly is provided on the lower side of the fixed positioning hollow plug-in assembly, the plug-in quick-release assembly is provided at the connection between the plug-in assembly and the fixed positioning hollow plug-in assembly, the elastic telescopic positioning assembly is provided on one side of the plug-in assembly, and the auxiliary wheel support assembly is provided on the lower side of the plug-in assembly.

[0007] Preferably, the fixed positioning hollow plug-in assembly includes a fixed sleeve, a hollow steel sleeve, a first plug-in hole, a side positioning auxiliary hole, and an auxiliary positioning arc groove. The fixed sleeve is welded and fixed to the lower side of the positioning connecting fixed rod, and the hollow steel sleeve is welded and fixed to the lower side of the fixed sleeve. The hollow steel sleeve has a first plug-in hole on its upper and lower sides, a side positioning auxiliary hole on its left and right sides, and an auxiliary positioning arc groove at the connection between the inner side of the hollow steel sleeve and the side positioning auxiliary hole.

[0008] Preferably, the pluggable assembly includes a fixed pluggable support rod, a second pluggable hole, and a preset opening. The fixed pluggable support rod is movably plugged into the inner side of the hollow steel sleeve. The fixed pluggable support rod has second pluggable holes on its upper and lower sides, and preset openings on its left and right sides.

[0009] Preferably, the plug-in quick-release assembly includes a limiting and fixing steel plate, an inner hollow plug-in support rod, and a plug-in fixing bolt. The surface of the hollow steel sleeve is provided with a limiting and fixing steel plate. The inner hollow plug-in support rod is welded and fixed to the lower side of the limiting and fixing steel plate. The inner hollow plug-in support rod passes through the first plug-in hole and is threadedly fixed to the second plug-in hole and the plug-in fixing bolt at the lower end.

[0010] Preferably, the elastic telescopic positioning component includes a fixed base, a spring-wrapped telescopic support rod, and an auxiliary telescopic positioning ball. The fixed base is fixedly connected inside the preset opening, the spring-wrapped telescopic support rod is movably connected to one side of the fixed base, and the auxiliary telescopic positioning ball is fixedly connected to one side of the spring-wrapped telescopic support rod.

[0011] Preferably, the auxiliary wheel support assembly includes a bottom fixed bracket, an elastic buffer module, an auxiliary wheel fixed bracket, and an auxiliary rotating wheel. The lower end of the fixed plug-in support rod is welded and fixed to the bottom fixed bracket. The lower side of the bottom fixed bracket is fixedly connected to the elastic buffer module. The lower side of the elastic buffer module is fixedly connected to the auxiliary wheel fixed bracket. The auxiliary rotating wheel is threadedly connected to one side of the auxiliary wheel fixed bracket.

[0012] Compared with the prior art, the beneficial effects of this utility model are: By setting up a quick-positioning plug-in quick-release mechanism, a concave auxiliary positioning arc groove is opened on the inner side of the side positioning auxiliary hole. In use, the auxiliary positioning arc groove can facilitate the insertion and fixation of the elastic telescopic positioning components set on both sides at the lower end. The side positioning auxiliary hole opened on the side and the first insertion hole opened at the upper end are on the same axis. When the fixed plug-in support rod is locked and fixed to the side positioning auxiliary hole of the hollow steel sleeve through the elastic telescopic positioning components fixed on both sides, the first insertion hole and the second insertion hole also correspond at the same time. By inserting and fixing the hollow plug-in support rod through the first insertion hole and the second insertion hole at the lower end to the plug-in fixing bolt, the fixed plug-in support rod at the lower end is inserted and fixed to the hollow steel sleeve on the upper side, realizing quick positioning and insertion. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model; Figure 2 This is a schematic diagram of the overall central part of the present invention disassembled. Figure 3 For the present utility model Figure 2 A magnified structural diagram at point A; The diagram shows the following components: 1. Positioning and connecting fixing rod; 2. Quick-positioning plug-in quick-release mechanism; 21. Fixed positioning hollow plug-in assembly; 211. Fixing sleeve; 212. Hollow steel sleeve; 213. First plug-in hole; 214. Side positioning auxiliary hole; 215. Auxiliary positioning arc groove; 22. Plug-in assembly; 221. Fixed plug-in support rod; 222. Second plug-in hole; 223. Pre-set opening; 23. Plug-in quick-release assembly; 231. Limiting fixing steel plate; 232. Hollow plug-in support rod; 233. Plug-in fixing bolt; 24. Elastic telescopic positioning assembly; 241. Fixed base; 242. Spring-wrapped telescopic support rod; 243. Auxiliary telescopic positioning steel ball; 25. Auxiliary wheel support assembly; 251. Bottom fixing bracket; 252. Elastic buffer module; 253. Auxiliary wheel fixing bracket; 254. Auxiliary rotating wheel. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-3As shown, this utility model provides a technical solution: a children's bicycle with an auxiliary wheel quick-release structure, including a positioning connecting fixing rod 1 and a quick positioning plug-in quick-release mechanism 2, wherein the quick positioning plug-in quick-release mechanism 2 is provided on the lower side of the positioning connecting fixing rod 1; The quick-release mechanism 2 includes a fixed-position hollow plug-in assembly 21, a plug-in assembly 22, a plug-in quick-release assembly 23, an elastic telescopic positioning assembly 24, and an auxiliary wheel support assembly 25. The fixed-position hollow plug-in assembly 21 is provided on the lower side of the positioning connecting rod 1. The plug-in assembly 22 is provided on the lower side of the fixed-position hollow plug-in assembly 21. The plug-in quick-release assembly 23 is provided at the connection between the plug-in assembly 22 and the fixed-position hollow plug-in assembly 21. The elastic telescopic positioning assembly 24 is provided on one side of the plug-in assembly 22. The auxiliary wheel support assembly 25 is provided on the lower side of the plug-in assembly 22.

[0016] Furthermore, the fixed positioning hollow plug-in assembly 21 includes a fixed sleeve 211, a hollow steel sleeve 212, a first plug-in hole 213, a side positioning auxiliary hole 214, and an auxiliary positioning arc groove 215. The fixed sleeve 211 is welded and fixed to the lower side of the positioning connecting fixing rod 1, and the hollow steel sleeve 212 is welded and fixed to the lower side of the fixed sleeve 211. The first plug-in hole 213 is opened on the upper and lower sides of the hollow steel sleeve 212, and the side positioning auxiliary hole 214 is opened on the left and right sides of the hollow steel sleeve 212. The auxiliary positioning arc groove 215 is provided at the connection between the inner side of the hollow steel sleeve 212 and the side positioning auxiliary hole 214. As shown in the figure, the inner side of the side positioning auxiliary hole 214 is provided with a concave auxiliary positioning arc groove 215. In use, the auxiliary positioning arc groove 215 can facilitate the insertion and fixing of the elastic telescopic positioning components 24 provided on both sides of the lower end. The side positioning auxiliary hole 214 opened on the side and the circle of the first insertion hole 213 opened at the upper end are on the same axis.

[0017] Furthermore, the pluggable connector assembly 22 includes a fixed pluggable support rod 221, a second pluggable hole 222, and a preset opening 223. The fixed pluggable support rod 221 is movably plugged into the inner side of the hollow steel sleeve 212. The fixed pluggable support rod 221 has second pluggable holes 222 on its upper and lower sides, and preset openings 223 on its left and right sides.

[0018] Furthermore, the plug-in quick-release assembly 23 includes a limiting and fixing steel plate 231, an inner hollow plug-in support rod 232, and a plug-in fixing bolt 233. The surface of the hollow steel sleeve 212 is provided with a limiting and fixing steel plate 231. An inner hollow plug-in support rod 232 is welded and fixed to the lower side of the limiting and fixing steel plate 231. The inner hollow plug-in support rod 232 passes through the first insertion hole 213 and is threadedly connected to the second insertion hole 222 and the lower plug-in fixing bolt 233. In use, when the fixed plug-in support rod 221 passes through two… After the elastic telescopic positioning component 24 of the side fixed connection is snapped and fixed to the side positioning auxiliary hole 214 of the hollow steel sleeve 212, the first insertion hole 213 and the second insertion hole 222 also correspond at the same time. By passing the inner hollow insertion support rod 232 through the first insertion hole 213 and the second insertion hole 222 and inserting and fixing it with the insertion fixing bolt 233 at the lower end, the lower fixed insertion support rod 221 is inserted and fixed with the upper hollow steel sleeve 212, realizing quick positioning and insertion.

[0019] Furthermore, the elastic telescopic positioning component 24 includes a fixed base 241, a spring-wrapped telescopic support rod 242, and an auxiliary telescopic positioning steel ball 243. The fixed base 241 is fixedly connected inside the preset opening 223. The spring-wrapped telescopic support rod 242 is movably connected to one side of the fixed base 241. The auxiliary telescopic positioning steel ball 243 is fixedly connected to one side of the spring-wrapped telescopic support rod 242. In use, the outer auxiliary telescopic positioning steel ball 243 extends and retracts through the inner spring-wrapped telescopic support rod 242. After being positioned and fixed with the side positioning auxiliary hole 214, during disassembly, the auxiliary telescopic positioning steel ball 243 is squeezed inward to detach it from the side positioning auxiliary hole 214, thereby quickly disassembling the lower fixed insertion support rod 221.

[0020] Furthermore, the auxiliary wheel support assembly 25 includes a bottom fixed bracket 251, an elastic buffer module 252, an auxiliary wheel fixed bracket 253, and an auxiliary rotating wheel 254. The bottom fixed bracket 251 is welded and fixed to the lower end of the fixed plug-in support rod 221. The elastic buffer module 252 is fixedly connected to the lower side of the bottom fixed bracket 251. The auxiliary wheel fixed bracket 253 is fixedly connected to the lower side of the elastic buffer module 252. The auxiliary rotating wheel 254 is threadedly connected to one side of the auxiliary wheel fixed bracket 253.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A children's bicycle with an auxiliary wheel quick-release structure, comprising a positioning connecting fixing rod (1) and a quick-positioning plug-in quick-release mechanism (2), characterized in that: The lower side of the positioning connecting fixing rod (1) is provided with a quick positioning plug-in quick release mechanism (2). The quick-positioning plug-in quick-release mechanism (2) includes a fixed positioning hollow plug-in assembly (21), a plug-in assembly (22), a plug-in quick-release assembly (23), an elastic telescopic positioning assembly (24), and an auxiliary wheel support assembly (25). The fixed positioning hollow plug-in assembly (21) is provided on the lower side of the positioning connecting fixed rod (1). The plug-in assembly (22) is provided on the lower side of the fixed positioning hollow plug-in assembly (21). The plug-in quick-release assembly (23) is provided at the connection between the plug-in assembly (22) and the fixed positioning hollow plug-in assembly (21). The elastic telescopic positioning assembly (24) is provided on one side of the plug-in assembly (22). The auxiliary wheel support assembly (25) is provided on the lower side of the plug-in assembly (22).

2. A children's bicycle with a quick-release auxiliary wheel structure according to claim 1, characterized in that, The fixed positioning hollow plug assembly (21) includes a fixed sleeve (211), a hollow steel sleeve (212), a first plug hole (213), a side positioning auxiliary hole (214), and an auxiliary positioning arc groove (215). The fixed sleeve (211) is welded and fixed to the lower side of the positioning connecting fixing rod (1). The hollow steel sleeve (212) is welded and fixed to the lower side of the fixed sleeve (211). The first plug hole (213) is opened on the upper and lower sides of the hollow steel sleeve (212). The side positioning auxiliary hole (214) is opened on the left and right sides of the hollow steel sleeve (212). The auxiliary positioning arc groove (215) is opened at the connection between the inner side of the hollow steel sleeve (212) and the side positioning auxiliary hole (214).

3. A children's bicycle with a quick-release auxiliary wheel structure according to claim 2, characterized in that, The plug-in assembly (22) includes a fixed plug-in support rod (221), a second plug-in hole (222), and a preset opening (223). The fixed plug-in support rod (221) is movably plugged into the inner side of the hollow steel sleeve (212). The fixed plug-in support rod (221) has a second plug-in hole (222) on its upper and lower sides, and a preset opening (223) on its left and right sides.

4. A children's bicycle with a quick-release auxiliary wheel structure according to claim 2, characterized in that, The plug-in quick-release assembly (23) includes a limiting and fixing steel plate (231), an inner hollow plug-in support rod (232), and a plug-in fixing bolt (233). The surface of the hollow steel sleeve (212) is provided with a limiting and fixing steel plate (231). The inner hollow plug-in support rod (232) is welded and fixed to the lower side of the limiting and fixing steel plate (231). The inner hollow plug-in support rod (232) is threadedly fixed to the first plug-in hole (213), the second plug-in hole (222), and the plug-in fixing bolt (233) at the lower end.

5. A children's bicycle with a quick-release auxiliary wheel structure according to claim 3, characterized in that, The elastic telescopic positioning component (24) includes a fixed base (241), a spring-wrapped telescopic support rod (242), and an auxiliary telescopic positioning steel ball (243). The fixed base (241) is fixedly connected inside the preset opening (223). The spring-wrapped telescopic support rod (242) is movably connected to one side of the fixed base (241), and the auxiliary telescopic positioning steel ball (243) is fixedly connected to one side of the spring-wrapped telescopic support rod (242).

6. A children's bicycle with a quick-release auxiliary wheel structure according to claim 3, characterized in that, The auxiliary wheel support assembly (25) includes a bottom fixed bracket (251), an elastic buffer module (252), an auxiliary wheel fixed bracket (253), and an auxiliary rotating wheel (254). The bottom fixed bracket (251) is welded and fixed to the lower end of the fixed plug-in support rod (221). The elastic buffer module (252) is fixedly connected to the lower side of the bottom fixed bracket (251). The auxiliary wheel fixed bracket (253) is fixedly connected to the lower side of the elastic buffer module (252). The auxiliary rotating wheel (254) is threadedly connected to one side of the auxiliary wheel fixed bracket (253).

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