Child's scooter with easy assembly and disassembly

Abstract

The utility model discloses child scooter convenient to dismount, relate to child scooter technical field. The utility model discloses a car body subassembly, the front end of car body subassembly is fixedly connected with height adjusting subassembly through bearing, and the bottom of height adjusting subassembly and the rear end of car body subassembly are fixedly connected with car wheel subassembly. The utility model discloses a child scooter is divided into car body subassembly, height adjusting subassembly and car wheel subassembly etc modularization structure, and the detachable connection mode such as bearing, screw connection, spline cooperation is used among each component, realizes the independent dismounting of each part, when a part is damaged, does not need to replace the scooter as a whole, only needs to dismount alone and can replace the damaged component, and the maintenance cost and the subsequent expenditure are reduced greatly, and simultaneously, the modular design reduces the number of connecting parts, simplifies the assembly process, avoids the risk that the child is injured when colliding because of too many parts, and gives consideration to practicality and safety.

Description

Technical Field

[0001] This utility model belongs to the technical field of children's scooters, and in particular relates to children's scooters that are easy to assemble and disassemble. Background Technology

[0002] Children's scooters are toys for kids and belong to the category of children's vehicles. Regularly riding scooters can improve children's flexibility, reaction speed, and overall physical activity, and strengthen their immune system.

[0003] Chinese patent application CN220996612U discloses a children's scooter, including a handlebar, pedals, a connecting assembly, a rear wheel, and a set of front wheels. The connecting assembly comprises a connector, a steering tube, and a steering bracket. The handlebar is fixed to the upper end of the steering tube. The lower end of the steering tube is fitted onto the connector and extends beyond the lower end face of the connector to connect with the steering bracket. The front wheels are respectively located at both ends of the steering bracket. The front end of the pedal has a mounting hole penetrating its upper and lower surfaces. The rear end of the connector is installed at the mounting hole, and the rear wheels are located at the rear end of the pedal. This children's scooter features a one-piece connecting assembly, reducing the number of connecting parts. This simplifies the installation and disassembly of the scooter and also prevents children from being injured by collisions due to an excessive number of parts.

[0004] The patented connector features a one-piece structure, which simplifies the assembly process. However, later repairs and parts replacements require replacing the entire damaged component. Without spare parts, a new scooter must be purchased, increasing both repair costs and subsequent expenses. Therefore, we offer an easily detachable children's scooter to address these issues. Utility Model Content

[0005] The purpose of this invention is to provide a children's scooter that is easy to assemble and disassemble. By combining the body components, height adjustment components, and wheel components, it solves the problem of high maintenance and usage costs in the past, where children's scooters were unibody structures.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a children's scooter that is easy to assemble and disassemble, comprising a frame assembly. A height adjustment assembly is fixedly connected to the front end of the frame assembly via a bearing. A wheel assembly is fixedly connected to the bottom of the height adjustment assembly and the rear end of the frame assembly. The frame assembly includes a platform, with a sleeve fixedly connected to the front end of the platform. The height adjustment assembly includes a support tube movably connected to the inner cavity of the sleeve via a bearing. A connecting cylinder is fixedly connected to the bottom of the support tube. A control lever is inserted into the inner cavity of the support tube. A fixing member is fixedly connected to the top surface of the support tube. The wheel assembly includes a lead screw threaded to the rear end of the platform and a connecting shaft sleeved in the inner cavity of the connecting cylinder. A rear wheel is fixedly connected to the surface of the lead screw via a bearing. Front wheels are sleeved at both ends of the connecting shaft, and fixing bolts are threaded to both ends of the connecting shaft.

[0008] The present invention is further configured such that the rear end of the vehicle plate has an opening for mounting the rear wheel, and both the front and rear sides of the opening cavity have threaded holes for use with a lead screw. A baffle is fixedly connected to the rear end of the top of the vehicle plate above the rear wheel. One end of the lead screw has a countersunk hole. The opening provides mounting space for the rear wheel. The threaded hole, in conjunction with the lead screw, enables precise positioning and stable connection of the rear wheel, facilitating the installation and removal of the rear wheel. The baffle can block children's feet, preventing them from sliding backward to the rear wheel while gliding, thus improving safety. The countersunk hole prevents the end of the lead screw from protruding from the surface of the rear wheel, avoiding scratches to children.

[0009] The present invention is further configured such that the fixing member includes a mounting groove formed on the surface of the support tube, the inner cavity of the mounting groove having a through hole, the surface of the control lever having a pin hole, and the inner cavity of the mounting groove and surrounding the through hole having a groove. A spring is fixedly connected to the inner cavity of the groove, and a pin is fixedly connected to the other end of the spring. One end of the pin extends through the inner cavity of the through hole to the inner cavity of the pin hole. The spring force causes the pin to disengage from the pin hole, realizing the rapid adjustment of the control lever and the support tube. The through hole and the groove provide installation space for the pin and the spring, resulting in a compact structure. The fixing can be released by rotating the limiting sleeve, facilitating quick adjustment of the control lever height and making the operation simple and flexible.

[0010] The present invention is further configured such that the fixing component includes a limiting sleeve threaded to the surface of the support tube, a limiting ring one fixedly connected to the top of the support tube, a limiting ring two fixedly connected to the surface of the support tube and below the limiting sleeve, and a handle fixedly connected to the surface of the limiting sleeve. The limiting sleeve can laterally limit the pin rod to prevent the pin rod from accidentally coming out. The limiting ring one and the limiting ring two limit the movement range of the limiting sleeve to ensure its accurate positioning. The handle facilitates the rotation of the limiting sleeve, improves the ease of operation, and further enhances the fixing stability of the fixing component on the control lever.

[0011] The present invention is further configured such that both ends of the connecting shaft are fixedly connected with a spline, and the inner cavity of the front wheel is provided with a keyway that cooperates with the spline. The cooperation between the spline and the keyway ensures that the front wheel and the connecting shaft rotate synchronously, avoids relative slippage between the two, ensures effective transmission of steering commands, improves the control precision of the scooter, and facilitates quick installation and removal of the front wheel.

[0012] The present invention is further configured such that a second spline is fixedly connected to the surface of the connecting shaft between the two splines, and a second keyway is provided on the inner wall of the connecting cylinder to cooperate with the second spline. The cooperation between the second spline and the second keyway enables the connecting shaft and the connecting cylinder to rotate synchronously, ensuring that the steering action of the height adjustment component can be accurately transmitted to the front wheel, ensuring steering consistency, improving gliding stability, and not affecting the ease of disassembly and assembly of the connecting shaft and the connecting cylinder.

[0013] The present invention is further configured such that threaded holes are provided at both ends of the connecting shaft for use with fixing bolts, and countersunk holes are provided on the surface of the fixing bolts. The threaded holes cooperate with the fixing bolts to achieve axial fixation of the front wheel, and the connection is firm. The countersunk holes prevent the end of the fixing bolt from protruding from the surface of the front wheel, avoiding children from being scratched by the end of the bolt during use and improving safety.

[0014] The present invention is further configured such that one end of the connecting shaft is fixedly connected to a positioning disc 1 and a positioning disc 2, which respectively contact the surfaces of the front wheel and the connecting cylinder. The other end of the connecting shaft is threadedly connected to a fixing disc 1 and a fixing disc 2, which respectively contact the surfaces of the front wheel and the connecting cylinder. The inner walls of the fixing disc 1 and the fixing disc 2 are each provided with a keyway 3 for the spline 1 and the spline 2 to pass through. The positioning disc 1 and the positioning disc 2 form an axial limit on the front wheel and the connecting cylinder from one side, and the fixing disc 1 and the fixing disc 2 are fastened from the other side by a threaded connection. The spline structure further prevents the front wheel and the connecting cylinder from axially moving or loosening. The keyway 3 ensures that the fixing disc does not affect the transmission function of the spline, thus improving the overall structural stability of the wheel assembly.

[0015] The present invention has the following beneficial effects.

[0016] 1. This utility model divides the children's scooter into modular structures such as the body assembly, height adjustment assembly, and wheel assembly. The components are connected by detachable methods such as bearings, threaded connections, and spline joints, which enables independent assembly and disassembly of each part. When a part is damaged, there is no need to replace the entire scooter; only the damaged part needs to be disassembled and replaced. This greatly reduces maintenance costs and subsequent expenses. At the same time, the modular design reduces the number of connecting parts, which simplifies the assembly process and avoids the risk of collision and injury to children due to too many parts, thus balancing practicality and safety.

[0017] 2. The wheel assembly of this utility model achieves quick connection and disassembly with the vehicle body through lead screws and fixing bolts. The height adjustment assembly achieves height adjustment and stable fixation of the control lever through fixing parts. This design allows parents to easily assemble, disassemble and replace parts of the scooter without professional tools or skills. In addition, while ensuring convenient assembly and disassembly, each connection structure ensures the stability of the component connection and the reliability during use, meeting the dual requirements of safety and ease of use for children's scooters. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 A 3D model of a children's scooter designed for easy assembly and disassembly.

[0020] Figure 2 A cross-sectional view of a children's scooter designed for easy assembly and disassembly.

[0021] Figure 3 An explosion diagram of a children's scooter designed for easy assembly and disassembly.

[0022] Figure 4 An exploded view of the connection structure between the axle and the front wheel in a children's scooter designed for easy assembly and disassembly.

[0023] Figure 5 An exploded diagram of the height adjustment component in a children's scooter designed for easy assembly and disassembly.

[0024] In the attached diagram: 1. Body assembly; 11. Body plate; 12. Sleeve; 2. Height adjustment assembly; 21. Support tube; 22. Connecting cylinder; 23. Control lever; 24. Fixing component; 241. Mounting slot; 242. Through hole; 243. Pin hole; 244. Groove; 245. Spring; 246. Pin rod; 247. Limiting sleeve; 248. Limiting ring one; 249. Limiting ring two; 3. Wheel assembly; 31. Lead screw; 32. Connecting shaft; 33. Rear wheel; 34. Front wheel; 35. Fixing bolt; 36. Spline one; 37. Keyway one; 38. Spline two; 39. Keyway two; 310. Positioning plate one; 311. Positioning plate two; 312. Fixing plate one; 313. Fixing plate two; 314. Keyway three. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figure 1-5 This utility model is a children's scooter that is easy to assemble and disassemble. It includes a body assembly 1. The front end of the body assembly 1 is fixedly connected to a height adjustment assembly 2 via a bearing. The bottom of the height adjustment assembly 2 and the rear end of the body assembly 1 are fixedly connected to a wheel assembly 3. The body assembly 1 includes a board 11. The front end of the board 11 is fixedly connected to a sleeve 12. The height adjustment assembly 2 includes a support tube 21 that is movably connected to the inner cavity of the sleeve 12 via a bearing. The bottom of the support tube 21 is fixedly connected to a connecting cylinder 22. A control lever 23 is inserted into the inner cavity of the support tube 21. A fixing member 24 is fixedly connected to the top surface of the support tube 21. The wheel assembly 3 includes a lead screw 31 that is threaded to the rear end of the board 11 and a connecting shaft 32 that is sleeved in the inner cavity of the connecting cylinder 22. The surface of the lead screw 31 is fixedly connected to a rear wheel 33 via a bearing. Front wheels 34 are sleeved on both ends of the connecting shaft 32. Fixing bolts 35 are threaded to both ends of the connecting shaft 32.

[0028] Specifically: the bearing configuration allows the height adjustment component 2 to rotate flexibly relative to the vehicle body component 1, enabling steering; the wheel component 3 provides mobile support for the scooter; the vehicle board 11 is made of lightweight and sturdy material; the inner cavity of the sleeve 12 is circular for installing the height adjustment component 2; the support tube 21 can rotate freely within the sleeve 12; the connecting tube 22 is used to connect the front wheel 34; the control lever 23 can move up and down along the inner cavity of the support tube 21 to adjust the height; the fixing part 24 is used to fix the position of the control lever 23, ensuring that the control lever 23 will not slide arbitrarily after adjustment; the threaded connection between the lead screw 31 and the vehicle board 11 facilitates the quick installation and removal of the rear wheel 33.

[0029] Example 2

[0030] Please see Figure 1-5Based on Embodiment 1, the rear end of the vehicle plate 11 has an opening for mounting the rear wheel 33, and both the front and rear sides of the opening cavity have threaded holes for use with the lead screw 31. A baffle is fixedly connected to the rear end of the top of the vehicle plate 11 above the rear wheel 33. One end of the lead screw 31 has a countersunk hole. The fixing member 24 includes a mounting groove 241 formed on the surface of the support tube 21. The inner cavity of the mounting groove 241 has a through hole 242. The surface of the control lever 23 has a pin hole 243. The inner cavity of the mounting groove 241... Furthermore, a groove 244 is provided around the through hole 242, and a spring 245 is fixedly connected to the inner cavity of the groove 244. A pin 246 is fixedly connected to the other end of the spring 245. One end of the pin 246 extends through the inner cavity of the through hole 242 to the inner cavity of the pin hole 243. The fixing member 24 also includes a limiting sleeve 247 threadedly connected to the surface of the support tube 21. A limiting ring 248 is fixedly connected to the top of the support tube 21, and a limiting ring 249 is fixedly connected to the surface of the support tube 21 and below the limiting sleeve 247. The limiting sleeve 247 has a handle fixedly connected to its surface. Both ends of the connecting shaft 32 are fixedly connected to splines 36. The inner cavity of the front wheel 34 has a keyway 37 for use with splines 36. A second spline 38 is fixedly connected to the surface of the connecting shaft 32 between the two splines 36. The inner wall of the connecting cylinder 22 has a keyway 39 for use with the second spline 38. Both ends of the connecting shaft 32 have threaded holes for use with fixing bolts 35. The surface of the fixing bolts 35 has countersunk holes. One end of the connecting shaft 32 is fixedly connected to positioning disc 310 and positioning disc 311 respectively. Positioning disc 310 and positioning disc 311 are in contact with the surfaces of the front wheel 34 and the connecting cylinder 22 respectively. The other end of the connecting shaft 32 is threadedly connected to fixing disc 312 and fixing disc 313 respectively. Fixing disc 312 and fixing disc 313 are in contact with the surfaces of the front wheel 34 and the connecting cylinder 22 respectively. The inner walls of fixing disc 312 and fixing disc 313 are provided with keyways 314 for spline 36 and spline 38 to pass through.

[0031] Specifically: the opening provides installation space for the rear wheel 33; the threaded hole 1, in conjunction with the lead screw 31, enables precise positioning and stable connection of the rear wheel 33, facilitating its installation and removal; the baffle prevents children's feet from sliding backward onto the rear wheel 33 during gliding, improving safety; the countersunk hole prevents the end of the lead screw 31 from protruding from the surface of the rear wheel 33, avoiding scratches to children; the spring force provided by the spring 245 disengages the pin 246 from the pin hole 243, enabling quick adjustment of the control lever 23 and the support tube 21; the through hole 242 and the groove 244 are for the pin 246. The spring 245 provides installation space, resulting in a compact structure. The fixing can be released by rotating the limiting sleeve 247, facilitating quick and easy adjustment of the control lever 23 height. Operation is simple and flexible. The limiting sleeve 247 provides lateral restraint to the pin 246, preventing accidental dislodgement. Limiting rings 248 and 249 restrict the movement range of the limiting sleeve 247, ensuring accurate positioning. The handle facilitates rotation of the limiting sleeve 247, enhancing operational convenience and further strengthening the fixing stability of the fixing component 24 on the control lever 23. The fit between spline 36 and keyway 37 ensures the front wheel 34 and... The connecting shaft 32 rotates synchronously to prevent relative slippage between the two, ensuring effective transmission of steering commands and improving the scooter's handling precision. It also facilitates the quick installation and removal of the front wheel 34. The cooperation of spline 38 and keyway 39 ensures that the connecting shaft 32 and connecting cylinder 22 rotate synchronously, guaranteeing that the steering action of the height adjustment component 2 is accurately transmitted to the front wheel 34, ensuring steering consistency, improving gliding stability, and without affecting the ease of installation and removal of the connecting shaft 32 and connecting cylinder 22. The threaded hole 2 cooperates with the fixing bolt 35 to axially fix the front wheel 34. The connection is firm; the countersunk hole 2 ensures that the end of the fixing bolt 35 does not protrude from the surface of the front wheel 34, preventing children from being scratched by the bolt end during use and improving safety. Positioning disc 1 310 and positioning disc 2 311 provide axial restraint to the front wheel 34 and connecting cylinder 22 from one side, while fixing disc 1 312 and fixing disc 2 313 achieve fastening through threaded connection from the other side. The spline structure further prevents axial movement or loosening of the front wheel 34 and connecting cylinder 22. Keyway 3 314 ensures that the fixing disc does not affect the transmission function of the spline, thus improving the overall structural stability of the wheel assembly 3.

[0032] The working principle of this utility model is as follows: the vehicle body assembly 1 serves as the basic load-bearing structure, the vehicle plate 11 provides a standing platform for children, in the height adjustment assembly 2, the support tube 21 is connected to the sleeve 12 of the vehicle body assembly 1 through the bearing, so that the support tube 21 can rotate freely to achieve steering; the control lever 23 is inserted into the support tube 21, and the height is adjusted and fixed through the fixing part 24, so that children can hold and control the direction; in the wheel assembly 3, the rear wheel 33 at the rear end is threadedly connected to the vehicle plate 11 through the lead screw 31, and the front wheel 34 at the front end is sleeved in the connecting cylinder 22 through the connecting shaft 32, and the fixing bolts 35 at both ends of the connecting shaft 32 restrict the movement of the front wheel 34; the spline structure ensures the synchronous rotation of the connecting shaft 32, the front wheel 34, and the connecting cylinder 22, so that the steering action can be effectively transmitted to the front wheel 34; each component is connected by a detachable structure such as bearings, threads, and splines, which not only ensures the realization of the normal gliding and steering functions of the scooter, but also facilitates the individual disassembly, replacement and maintenance of each component.

[0033] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A child scooter that is easy to assemble and disassemble, including a frame assembly (1), characterized in that: The front end of the vehicle body assembly (1) is fixedly connected to a height adjustment assembly (2) via a bearing, and the bottom of the height adjustment assembly (2) and the rear end of the vehicle body assembly (1) are fixedly connected to a wheel assembly (3). The vehicle body assembly (1) includes a vehicle plate (11), and a sleeve (12) is fixedly connected to the front end of the vehicle plate (11); The height adjustment assembly (2) includes a support tube (21) that is movably connected to the inner cavity of the sleeve (12) via a bearing. A connecting tube (22) is fixedly connected to the bottom of the support tube (21). A control lever (23) is inserted into the inner cavity of the support tube (21). A fixing member (24) is fixedly connected to the top surface of the support tube (21). The wheel assembly (3) includes a lead screw (31) threaded to the rear end of the vehicle plate (11) and a connecting shaft (32) sleeved in the inner cavity of the connecting cylinder (22). The surface of the lead screw (31) is fixedly connected to a rear wheel (33) by a bearing. Both ends of the connecting shaft (32) are fitted with front wheels (34). Both ends of the connecting shaft (32) are threaded with fixing bolts (35).

2. The children's scooter that is easy to assemble and disassemble according to claim 1, characterized in that: The rear end of the vehicle plate (11) is provided with an opening for the installation of the rear wheel (33), and both the front and rear sides of the opening cavity are provided with threaded holes for use with the lead screw (31). A baffle is fixedly connected to the rear end of the top of the vehicle plate (11) and above the rear wheel (33). One end of the lead screw (31) is provided with a countersunk hole.

3. The children's scooter that is easy to assemble and disassemble according to claim 1, characterized in that: The fastener (24) includes a mounting groove (241) formed on the surface of the support tube (21). The inner cavity of the mounting groove (241) is provided with a through hole (242). The surface of the control lever (23) is provided with a pin hole (243). The inner cavity of the mounting groove (241) and around the through hole (242) is provided with a groove (244). A spring (245) is fixedly connected to the inner cavity of the groove (244). The other end of the spring (245) is fixedly connected with a pin (246). One end of the pin (246) extends through the inner cavity of the through hole (242) to the inner cavity of the pin hole (243).

4. The children's scooter that is easy to assemble and disassemble according to claim 1, characterized in that: The fastener (24) further includes a limiting sleeve (247) threaded to the surface of the support tube (21). A limiting ring one (248) is fixedly connected to the top of the support tube (21), and a limiting ring two (249) is fixedly connected to the surface of the support tube (21) and below the limiting sleeve (247). A handle is fixedly connected to the surface of the limiting sleeve (247).

5. The children's scooter that is easy to assemble and disassemble according to claim 1, characterized in that: Both ends of the connecting shaft (32) are fixedly connected to spline one (36), and the inner cavity of the front wheel (34) is provided with keyway one (37) for use with spline one (36).

6. The children's scooter that is easy to assemble and disassemble according to claim 5, characterized in that: The surface of the connecting shaft (32) and between the two splines (36) are fixedly connected to a spline (38), and the inner wall of the connecting cylinder (22) is provided with a keyway (39) for use with the spline (38).

7. The detachable children's scooter according to claim 1, characterized in that: Both ends of the connecting shaft (32) are provided with threaded holes for use with fixing bolts (35), and the surface of the fixing bolts (35) is provided with countersunk holes.

8. The detachable children's scooter according to claim 6, characterized in that: One end of the connecting shaft (32) is fixedly connected to positioning disk one (310) and positioning disk two (311), respectively. Positioning disk one (310) and positioning disk two (311) are in contact with the surfaces of the front wheel (34) and the connecting cylinder (22), respectively. The other end of the connecting shaft (32) is threadedly connected to fixing disk one (312) and fixing disk two (313), respectively. Fixing disk one (312) and fixing disk two (313) are in contact with the surfaces of the front wheel (34) and the connecting cylinder (22), respectively. The inner walls of fixing disk one (312) and fixing disk two (313) are provided with keyway three (314) for spline one (36) and spline two (38) to pass through.

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