Disassembling and assembling structure and balance car

By designing a disassembly and assembly structure for the wheel axle, locking components, and disengagement components, the problem of non-removable wheels on children's walkers has been solved, enabling quick assembly and disassembly, thus improving user experience and transportation efficiency.

CN223934471UActive Publication Date: 2026-02-24KUNSHAN LITTLE DINASAUR CHILD PROD
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Patent Information

Application Number
CN202520813966.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-02-24
Estimated Expiration
2035-04-27

AI Technical Summary

Technical Problem

The existing wheel structure of children's walkers is not removable, which makes replacement difficult, increases the difficulty of packaging and transportation, and reduces the user experience.

Method used

A disassembly and assembly structure including axle, locking assembly and disassembly assembly is designed. Through the cooperation of limiting groove, locking pin and locking seat, the wheel can be quickly disassembled and assembled. The elastic element and guide slope are used to improve the smoothness of installation and the efficiency of disassembly.

Benefits of technology

It enables quick assembly and disassembly of wheels, reduces operational difficulty, enhances user experience, and simplifies packaging and transportation processes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of baby walkers, and discloses a disassembly and assembly structure and a balance car. The disassembling and assembling structure is used for disassembling and assembling the wheels on the frame. The device specifically comprises a wheel shaft, a locking assembly and a disengaging assembly. Wherein the first end of the axle is pivoted with the wheel, a limiting groove is formed in the periphery of the second end, and the second end can be inserted into the frame; the locking assembly comprises a locking pin and a locking seat, a limiting part is arranged at one end of the locking pin in a protruding mode, and the locking seat is installed on the frame and can push the locking pin in the direction of the axle so that the limiting part can be correspondingly inserted into the limiting groove; the separating assembly can enable the limiting part of the locking pin to be separated from the limiting groove so that the axle can be taken down. According to the dismounting structure, the wheel can be quickly dismounted or mounted on the frame, the dismounting difficulty is reduced, and the dismounting efficiency is improved. The balance car applies the disassembly and assembly structure, and the use experience feeling of a user can be improved.
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Description

Technical Field

[0001] This utility model relates to the field of children's walker technology, and in particular to a disassembly and assembly structure and a balance bike. Background Technology

[0002] Baby walkers greatly facilitate parents in teaching their children to walk, reducing the difficulty for parents in helping their children learn to walk. However, children use them for extended periods during the learning process, causing the wheels to wear down to varying degrees. Most existing balance bike wheels are non-removable, making replacement difficult and increasing packaging and transportation challenges due to their large size.

[0003] Therefore, there is an urgent need for a disassembly and assembly structure and a self-balancing scooter to solve the above-mentioned technical problems. Utility Model Content

[0004] One objective of this invention is to provide a disassembly and assembly structure that enables the quick removal or installation of wheels on a vehicle frame, thereby reducing the difficulty of disassembly and assembly and improving the efficiency of disassembly and assembly.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A disassembly and assembly structure for removing and mounting wheels from a vehicle frame, comprising:

[0007] The axle has a first end pivotally connected to the wheel, and a second end with a limiting groove on its outer periphery, and the second end can be inserted into the frame.

[0008] The locking assembly includes a locking pin and a locking seat. One end of the locking pin has a limiting portion protruding from it. The locking seat is mounted on the vehicle frame and can push the locking pin toward the axle so that the limiting portion can be inserted into the limiting groove.

[0009] The disengagement assembly allows the limiting portion of the locking pin to disengage from the limiting groove, enabling the removal of the axle.

[0010] Preferably, the locking assembly further includes a first elastic member, one end of which abuts against the locking pin and the other end of which abuts against the locking seat. The elastic force of the first elastic member enables the limiting part to be correspondingly engaged into the limiting groove.

[0011] Preferably, the locking pin is provided with a mounting groove on the side opposite to the limiting part, and the first elastic member is located in the mounting groove and abuts against the bottom of the mounting groove.

[0012] Preferably, the locking seat has a first receiving groove on the side facing the vehicle frame, and the first elastic member is located in the first receiving groove and abuts against the bottom of the first receiving groove.

[0013] Preferably, the limiting part is provided with a guide slope, and the second end of the wheel axle can slide against the guide slope after being inserted into the frame, thereby driving the locking pin to compress the first elastic member.

[0014] Preferably, the release component includes a release member, and the release member is provided with a pushing part. The pushing part can extend into the locking seat and abut against the locking pin. When the release member is pushed toward the interior of the locking seat, the pushing part can push the locking pin so that the limiting part can disengage from the limiting groove.

[0015] Preferably, the release assembly further includes a second elastic member, one end of which abuts against the release member and the other end of which abuts against the locking seat; the locking seat is provided with a mounting hole, and the end of the release member away from the pushing part is provided with a step, the release member is installed in the mounting hole, and the elastic force of the second elastic member can cause the step to abut against the outer peripheral wall of the mounting hole.

[0016] Preferably, the pushing part and the locking pin are in a concave-convex fit.

[0017] Preferably, the locking pin has protrusions on both sides, the release member has a pushing part on both sides, and the end of the pushing part has a groove.

[0018] Another objective of this invention is to provide a self-balancing scooter that enhances the user experience.

[0019] To achieve this objective, the present invention adopts the following technical solution:

[0020] A self-balancing scooter, comprising:

[0021] The vehicle frame, wheels, and the disassembly / removal structure are provided, and the wheels can be installed or removed from both ends of the vehicle frame via the disassembly / removal structure.

[0022] The beneficial effects of this utility model are:

[0023] This utility model discloses a disassembly and assembly structure. This structure is used for disassembling and assembling wheels on a vehicle frame. Specifically, it includes an axle, a locking assembly, and a disengagement assembly. The first end of the axle is pivotally connected to the wheel, and the second end has a limiting groove on its outer periphery, allowing it to be inserted into the vehicle frame. The locking assembly includes a locking pin and a locking seat. One end of the locking pin has a protruding limiting portion, and the locking seat is mounted on the vehicle frame and can push the locking pin towards the axle so that the limiting portion can be inserted into the limiting groove. The disengagement assembly allows the limiting portion of the locking pin to disengage from the limiting groove, enabling the removal of the axle.

[0024] When installing a wheel, simply insert the second end of the axle into the frame. The locking seat will then engage the locking pin's limiting part with the limiting groove, thus limiting the axle and preventing it from detaching from the frame. The wheel, however, is rotatably connected to the first end of the axle, allowing it to rotate around the axle's axis. To remove the wheel, simply push the release assembly. This will disengage the locking pin's limiting part from the limiting groove, freeing the axle from its limiting effect. Pulling the axle away from the frame will then remove the wheel and axle together. This design is not only simple in structure but also easy and quick to install and remove, enhancing the user experience.

[0025] This utility model also discloses a self-balancing scooter, which uses the above-mentioned disassembly and assembly structure to improve the user experience. Attached Figure Description

[0026] Figure 1 This is an axonometric view of the self-balancing scooter provided by this utility model;

[0027] Figure 2 This is a first exploded view of the disassembly and assembly structure provided by this utility model;

[0028] Figure 3 This is a second exploded view of the disassembly and assembly structure provided by this utility model;

[0029] Figure 4 This is an internal schematic diagram of the disassembly and assembly structure provided by this utility model.

[0030] In the picture:

[0031] 10. Wheel axle; 11. Limiting groove;

[0032] 20. Locking component; 21. Locking pin; 211. Limiting part; 212. Mounting groove; 213. Protrusion; 22. Locking seat; 221. First receiving groove; 222. Mounting hole; 23. First elastic element;

[0033] 30. Disengagement component; 31. Disengagement part; 311. Pushing part; 312. Groove; 313. Second receiving groove; 314. Step; 32. Second elastic element;

[0034] 100. Frame;

[0035] 200. Wheel. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0040] This embodiment provides a self-balancing scooter, such as Figure 1 As shown, the balance scooter includes a frame 100, wheels 200, and a detachable structure. Wheels 200 can be installed or removed from both ends of the frame 100 via the detachable structure. This balance scooter is primarily used to assist children in learning to walk and to develop their sense of balance. During factory packaging and shipping, to reduce transport volume, the wheels 200 are removed before transport. After receiving the scooter, parents then assemble the front and rear wheels 200 onto the frame 100 according to the operating instructions. However, the existing detachable structure is not only complex, but also makes it difficult to install and remove the wheels 200 from the frame 100, significantly reducing the user experience.

[0041] To address this issue, this embodiment also provides a disassembly and assembly structure for attaching and detaching the wheel 200 from the frame 100. For example... Figures 2-4 As shown, the disassembly and assembly structure includes an axle 10, a locking assembly 20, and a disengagement assembly 30. The first end of the axle 10 is pivotally connected to the wheel 200, and the second end is provided with a limiting groove 11 on its outer periphery, and the second end can be inserted into the frame 100. The locking assembly 20 includes a locking pin 21 and a locking seat 22. One end of the locking pin 21 has a limiting part 211 protruding from it. The locking seat 22 is installed on the frame 100 and can push the locking pin 21 toward the axle 10 so that the limiting part 211 can be inserted into the limiting groove 11. The disengagement assembly 30 can disengage the limiting part 211 of the locking pin 21 from the limiting groove 11 so that the axle 10 can be removed.

[0042] When the wheel 200 needs to be installed, simply insert the second end of the axle 10 into the frame 100. The locking seat 22 then engages the limiting portion 211 of the locking pin 21 with the limiting groove 11, thus limiting the axle 10 and preventing it from detaching from the frame 100. Since the wheel 200 is rotatably connected to the first end of the axle 10, it can rotate around the axis of the axle 10. When the wheel 200 needs to be removed, simply push the disengagement component 30. This component disengages the limiting portion 211 of the locking pin 21 from the limiting groove 11, freeing the axle 10 from its limiting position. Pulling the axle 10 away from the frame 10 allows the wheel 200 and axle 10 to be removed together. This design is not only simple in structure but also easy and quick to install and remove, improving the user experience.

[0043] Specifically, such as Figures 2-4 As shown, the locking assembly 20 also includes a first elastic member 23. One end of the first elastic member 23 abuts against the locking pin 21, and the other end abuts against the locking seat 22. The elastic force of the first elastic member 23 can cause the limiting part 211 to engage with the limiting groove 11. Since the locking seat 22 is installed on the frame 100, the locking seat 22 is fixed. The elastic force of the first elastic member 23 can push the locking pin 21 away from the locking seat 22 until the limiting part 211 of the locking pin 21 engages with the limiting groove 11, thus completing the locking. The whole process is simple and smooth, requiring no manual locking, as the first elastic member 23 can automatically complete the fixing.

[0044] It should be noted that the limiting groove 11 is an annular groove. That is, after the wheel axle 10 is rotated to any angle and inserted into the frame 100, the limiting part 211 can be correspondingly engaged in the annular groove, eliminating the need for alignment work during installation, saving time and effort.

[0045] Furthermore, the limiting part 211 is provided with a guide ramp, allowing the second end of the axle 10 to slide against the guide ramp after insertion into the frame 100, thereby driving the locking pin 21 to compress the first elastic member 23. By providing a guide ramp on the limiting part 211, the resistance to insertion of the axle 10 into the frame 100 can be reduced, increasing the smoothness of axle 100 installation and further improving installation convenience. Moreover, when the limiting part 211 slides to the limiting groove 11, the elastic force of the first elastic member 23 can push the locking pin 21 towards the limiting groove 11, causing the limiting part 211 to engage with the limiting groove 11. In other embodiments, a guide ramp can also be added to the second end of the axle 10 to further improve installation efficiency and speed.

[0046] like Figure 2 As shown, a mounting groove 212 is provided on the side of the locking pin 21 away from the limiting part 211. The first elastic member 23 is located in the mounting groove 212 and abuts against the bottom of the mounting groove 212. By providing the mounting groove 212, the end of the first elastic member 23 that abuts against the locking pin 21 can be limited, preventing it from shaking during extension and retraction, and ensuring good stability.

[0047] In addition, such as Figure 3 As shown, the locking seat 22 has a first receiving groove 221 on the side facing the frame 100. The first elastic member 23 is located in the first receiving groove 221 and abuts against the bottom of the first receiving groove 221. By setting the first receiving groove 221, the end of the first elastic member 23 that abuts against the locking seat 22 can be limited, preventing it from shaking when it extends or retracts, thus ensuring good stability.

[0048] like Figures 2-4 As shown, the disengagement assembly 30 includes a disengagement member 31, and the disengagement member 31 is provided with a pushing part 311. The pushing part 311 can penetrate into the locking seat 22 and abut against the locking pin 21. When the disengagement member 31 is pushed towards the inner wall of the locking seat 22, the pushing part 311 can push the locking pin 21, so that the limiting part 211 can disengage from the limiting groove 11. This arrangement is not only simple in structure, but also convenient in operation. Only by pushing the disengagement member 31 can the limiting part 211 be disengaged from the limiting groove 11, thereby enabling the wheel axle 10 to be removed from the frame 100, which is simple and efficient.

[0049] Specifically, such as Figures 2-4As shown, the release assembly 30 also includes a second elastic member 32. One end of the second elastic member 32 abuts against the release member 31, and the other end abuts against the locking seat 22. The locking seat 22 is provided with a mounting hole 222. The end of the release member 31 away from the pushing part 311 is provided with a step 314. The release member 31 is installed in the mounting hole 222, and the elastic force of the second elastic member 32 can make the step 314 ground to the outer peripheral wall of the mounting hole 222. The release member 31 is installed in the mounting hole 222, which also avoids the structure being exposed. After pressing the release member 31 inside the locking seat 22, the second elastic member 32 can make the release member 31 reset for the next use. At the same time, the elastic force of the second elastic member 32 can make the step 314 of the release member 31 abut against the outer peripheral wall of the mounting hole 222, preventing it from popping out of the mounting hole 222. At the same time, the end of the step 314 can protrude from the mounting hole 222, so that the operator can press the release member 31 inward, further improving the ease of operation.

[0050] It is worth noting that, such as Figure 3 As shown, a second receiving groove 313 is provided inside the release member 31, and the second elastic member 32 is located inside the second receiving groove 313 and abuts against the bottom of the second receiving groove 313. By providing the second receiving groove 313, the end of the second elastic member 32 that abuts against the release member 31 can be limited, preventing it from shaking during extension and retraction, and ensuring good stability.

[0051] Furthermore, in this embodiment, both the first elastic element 23 and the second elastic element 32 are springs. Springs have a simple structure, are inexpensive, and are easy to install and use, which can effectively reduce manufacturing costs and disassembly / reassembly difficulties.

[0052] like Figure 4 As shown, the pushing part 311 and the locking pin 21 are in a concave-convex fit. The concave-convex fit between the pushing part 311 and the locking pin 21 ensures the stability of the connection between the pushing part 311 and the locking pin 21, ensures the disassembly effect when pushing the disengaging part 31, and improves the user experience.

[0053] Specifically, such as Figure 3 and Figure 4 As shown, both sides of the locking pin 21 are provided with protrusions 213, and both sides of the release member 31 are provided with pushing parts 311, and the ends of the pushing parts 311 are provided with grooves 312. This arrangement can ensure the uniformity of force on both sides of the locking pin 21, and the cooperation between the protrusions 213 and the grooves 312 also ensures the stability of the connection, thereby ensuring a good pushing effect. This ensures that when the release member 31 is pushed toward the inside of the locking seat 22, there is enough pushing force to make the limiting part 211 disengage from the limiting groove 11 without tilting. The structure is simple and the disassembly and assembly efficiency is high.

[0054] The following describes the usage process of the disassembly and assembly structure in this embodiment with reference to the accompanying drawings:

[0055] First, the locking assembly 20 and the disengagement assembly 30 are installed on the frame 100;

[0056] Next, insert the end of the axle 10 away from the wheel 200 into the frame 100 until the limiting part 211 is engaged with the limiting groove 11 to complete the installation. At this time, the child can use the balance bike.

[0057] Finally, after using the balance scooter, press the release part 31 inside the locking seat 22. The pushing part 311 can push the protrusion 213 of the locking pin 21, thereby causing the limiting part 211 to disengage from the limiting groove 11. At this time, the wheel axle 10 can be removed from the frame 100 to complete the disassembly.

[0058] In summary, the disassembly and assembly structure in this embodiment is not only simple in structure, but also easy to operate and quick to disassemble and assemble. Applying this disassembly and assembly structure to a balance scooter can improve the user experience.

[0059] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A disassembly and assembly structure for disassembling and assembling wheels (200) on a vehicle frame (100), characterized in that, include: The axle (10) has a first end pivotally connected to the wheel (200), and a second end with a limiting groove (11) on its outer periphery, and the second end can be inserted into the frame (100); The locking assembly (20) includes a locking pin (21) and a locking seat (22). One end of the locking pin (21) is provided with a limiting part (211). The locking seat (22) is mounted on the frame (100) and can push the locking pin (21) toward the axle (10) so that the limiting part (211) can be inserted into the limiting groove (11). The disengagement assembly (30) allows the limiting portion (211) of the locking pin (21) to disengage from the limiting groove (11), thereby enabling the removal of the axle (10).

2. The disassembly and assembly structure according to claim 1, characterized in that, The locking assembly (20) further includes a first elastic element (23), one end of which abuts against the locking pin (21) and the other end of which abuts against the locking seat (22). The elastic force of the first elastic element (23) enables the limiting part (211) to be correspondingly engaged into the limiting groove (11).

3. The disassembly and assembly structure according to claim 2, characterized in that, The locking pin (21) is provided with a mounting groove (212) on the side away from the limiting part (211), and the first elastic member (23) is located in the mounting groove (212) and abuts against the bottom of the mounting groove (212).

4. The disassembly and assembly structure according to claim 2, characterized in that, The locking seat (22) is provided with a first receiving groove (221) on the side facing the frame (100), and the first elastic member (23) is located in the first receiving groove (221) and abuts against the bottom of the first receiving groove (221).

5. The disassembly and assembly structure according to claim 2, characterized in that, The limiting part (211) is provided with a guide slope. After the axle (10) is inserted into the frame (100), the second end can slide against the guide slope and drive the locking pin (21) to compress the first elastic member (23).

6. The disassembly and assembly structure according to claim 1, characterized in that, The release assembly (30) includes a release member (31), and the release member (31) is provided with a push part (311). The push part (311) can extend into the locking seat (22) and abut against the locking pin (21). When the release member (31) is pushed toward the interior of the locking seat (22), the push part (311) can push the locking pin (21) so that the limiting part (211) can disengage from the limiting groove (11).

7. The disassembly and assembly structure according to claim 6, characterized in that, The release component (30) further includes a second elastic member (32), one end of which abuts against the release member (31) and the other end of which abuts against the locking seat (22); the locking seat (22) is provided with a mounting hole (222), and a step (314) is provided at the end of the release member (31) away from the pushing part (311). The release member (31) is installed in the mounting hole (222), and the elastic force of the second elastic member (32) can make the step (314) abut against the outer peripheral wall of the mounting hole (222).

8. The disassembly and assembly structure according to claim 6, characterized in that, The pushing part (311) and the locking pin (21) are in a concave-convex fit.

9. The disassembly and assembly structure according to claim 8, characterized in that, The locking pin (21) has protrusions (213) on both sides, the release member (31) has a pushing part (311) on both sides, and the end of the pushing part (311) has a groove (312).

10. A self-balancing scooter, characterized in that, include: The frame (100), wheels (200), and the disassembly structure as described in any one of claims 1-9, wherein the wheels (200) can be installed or removed from both ends of the frame (100) via the disassembly structure.