Adjustable guard for a child's scooter

By introducing movable bars and adjustment components into the children's scooter guardrail, the problem of fixed guardrail width is solved, enabling flexible adjustment of the guardrail and improving the scooter's usability.

CN224589287UActive Publication Date: 2026-08-04TIANJIN SI TE PLASTIC PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN SI TE PLASTIC PROD CO LTD
Filing Date
2025-08-27
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

The width of existing children's scooter guardrails is fixed, which cannot accommodate children's needs for carrying items and limits the flexibility of scooter use.

Method used

An adjustment assembly was designed, comprising a fixed rod, a movable rod, a limiting hole, a spring protrusion, a sliding seat, a locking bolt, and a positioning hole. Through the sliding of the movable rod within the cavity of the fixed rod and the cooperation of the assembly, the width and height of the guardrail can be flexibly adjusted.

Benefits of technology

It enables quick adjustment of the guardrail width and height, improving the flexibility of scooter use and meeting the needs of children in different scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of adjustable guardrail of children's scooter, it is related to children's scooter guardrail field, including scooter assembly, including guardrail assembly, including fixed rod, the guardrail located the both ends of fixed rod, and the movable rod sliding in the fixed rod inner cavity both ends, adjusting component, including the limiting hole being opened in the fixed rod surface, spring lug is installed in the movable rod surface;The utility model is through movable rod in guardrail assembly in the sliding of fixed rod inner cavity, and the clamping cooperation of spring lug and limiting hole in adjusting component, the quick adjustment of guardrail width is realized, and can be fixed in the different positions of push rod by the cooperation of locking bolt and positioning hole, further increase the diversity of guardrail adjustment, by the cooperation of adjusting component, the use width and height of guardrail can be adjusted according to the actual demand of children, to improve the flexibility of scooter use.
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Description

Technical Field

[0001] This utility model belongs to the field of children's scooter guardrails, specifically an adjustable guardrail for children's scooters. Background Technology

[0002] A children's scooter is a sports and leisure toy specially designed for children. It mainly consists of a scooter board, wheels, handlebars, and other parts. It is designed to help children develop their physical coordination and balance. Some children's scooters are also equipped with seats and guardrails to improve the comfort and safety of the scooter.

[0003] Currently, children's scooter guardrails only support height adjustment, and the guardrail width is usually a standard 25-30cm, which only fits standard scooter sizes. However, in actual use, children may need a wider guardrail to support items such as water bottles and toys, and the fixed width of the guardrail limits the flexibility of using the scooter.

[0004] In summary, this utility model provides an adjustable guardrail for children's scooters to solve the above problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] An adjustable guardrail for children's scooters includes a guardrail assembly, comprising a fixed rod, guardrails located at both ends of the fixed rod, and movable rods sliding between the two ends of the inner cavity of the fixed rod. The adjustment assembly includes a limiting hole formed on the surface of the fixed rod, a spring protrusion mounted on the surface of the movable rod, a sliding seat fixedly connected to the fixed rod, and a locking bolt and a positioning hole for fixing the sliding seat.

[0007] Furthermore, this utility model also includes a scooter assembly with a guardrail assembly installed. The scooter assembly includes a scooter body, a main pole located at the front end of the scooter body, a seat located above the scooter body, and a push rod fixed to the rear end of the seat. The sliding seat is slidably connected to the surface of the push rod. The scooter assembly also includes a rear handle located at the top of the push rod, a direction bar for adjusting direction, and a front grip located at the top of the direction bar.

[0008] Furthermore, in this invention, the main rod is fixedly connected to the scooter body, and the seat is movably connected to the main rod via a locking buckle.

[0009] Furthermore, in this invention, the rear handle is fixed to the top of the push rod, and the front grip is fixed to the top of the steering rod.

[0010] Furthermore, in this utility model, one end of the movable rod is fixedly connected to the railing, and the other end of the movable rod extends into the inner cavity of the fixed rod and is slidably connected to the inner cavity of the fixed rod. The fixed rod is movably connected to the sliding seat through a rotating shaft.

[0011] Furthermore, in this invention, the end of the spring protrusion away from the movable rod extends into the inner cavity of the limiting hole and engages with the inner cavity of the limiting hole.

[0012] Furthermore, in this utility model, the positioning hole is opened on the surface of the push rod, and one end of the locking bolt passes through the sliding seat and extends into the inner cavity of the positioning hole, and is threadedly connected to the inner cavity of the positioning hole.

[0013] Beneficial effects: This utility model has the following beneficial effects:

[0014] This invention achieves rapid adjustment of the guardrail width by sliding the movable rod in the inner cavity of the fixed rod in the guardrail assembly and by engaging the spring protrusion in the adjustment assembly with the limiting hole. Furthermore, the sliding seat can be fixed at different positions on the push rod by the locking bolt and the positioning hole, further increasing the versatility of the guardrail adjustment. Through the coordination of the adjustment components, the usable width and height of the guardrail can be adjusted according to the actual needs of children, thereby improving the flexibility of using the scooter. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure of the seat and guardrail assembly of this utility model;

[0017] Figure 3 This is a schematic diagram of the separated state structure of the guardrail assembly of this utility model;

[0018] Figure 4 This is a schematic diagram of the push rod and sliding seat in their separated state according to this utility model.

[0019] In the picture:

[0020] 100. Scooter components; 110. Scooter body; 120. Main post; 130. Seat; 140. Push rod; 150. Rear handlebar; 160. Steering rod; 170. Front grip; 200. Guardrail assembly; 210. Fixed rod; 220. Guardrail; 230. Movable rod; 300. Adjustment assembly; 310. Limiting hole; 320. Spring protrusion; 330. Sliding seat; 340. Locking bolt; 350. Positioning hole. Detailed Implementation

[0021] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0022] Example 1

[0023] like Figure 1-4 As shown, this is the first embodiment of the present invention. This embodiment provides an adjustable guardrail for children's scooters, including a guardrail assembly 200, which includes a fixed rod 210, railings 220 located at both ends of the fixed rod 210, and movable rods 230 sliding on both ends of the inner cavity of the fixed rod 210. The adjustment assembly 300 includes a limiting hole 310 opened on the surface of the fixed rod 210, a spring protrusion 320 installed on the surface of the movable rod 230, a sliding seat 330 fixedly connected to the fixed rod 210, and a locking bolt 340 and a positioning hole 350 for fixing the sliding seat 330.

[0024] like Figure 1-4 As shown, the guardrail assembly 200 consists of a fixed rod 210, a railing 220, and a movable rod 230. The width of the guardrail can be adjusted by sliding the movable rod 230. The adjustment assembly 300 consists of a limiting hole 310, a spring protrusion 320, a sliding seat 330, a locking bolt 340, and a positioning hole 350, which enables flexible adjustment and locking of the height and width of the guardrail. The movable rod 230 slides in the cavity of the fixed rod 210 to adjust the width of the guardrail as needed. The spring protrusion 320 extends into the limiting hole 310 to quickly lock the position of the movable rod 230. The sliding seat 330 slides on the surface of the push rod 140. While the sliding seat 330 slides, it drives the guardrail assembly 200 to move up and down, thereby adjusting the height of the guardrail. The locking bolt 340 and the positioning hole 350 work together to quickly lock the sliding seat 330. This not only makes the operation simple but also greatly improves the flexibility of using the scooter and meets the needs of different children in different scenarios.

[0025] Example 2

[0026] Reference Figure 1 and 2 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0027] In this embodiment, the scooter assembly 100 with guardrail assembly 200 installed is also included. Scooter assembly 100 includes scooter body 110, main bar 120 located at the front end of scooter body 110, seat 130 located above scooter body 110, and push rod 140 fixed to the rear end of seat 130. Sliding seat 330 is slidably connected to the surface of push rod 140.

[0028] The scooter assembly 100 also includes a rear handlebar 150 located on top of the push rod 140, a steering bar 160 for adjusting direction, and a front grip 170 located on top of the steering bar 160.

[0029] The main pole 120 is fixedly connected to the scooter body 110, and the seat 130 is movably connected to the main pole 120 via a locking buckle.

[0030] The rear handlebar 150 is fixed to the top of the push rod 140, and the front grip 170 is fixed to the top of the steering rod 160.

[0031] like Figure 1 and 2 As shown, the scooter body 110 has a front wheel at the front and a rear wheel at the rear. One end of the steering stick 160 passes through the seat 130 and is connected to the front wheel drive. Both the front and rear wheels can be equipped with brake devices. Both the front and rear wheels are made of wear-resistant rubber to increase friction with the ground and improve the stability of the scooter. In addition, the seat 130 of the scooter assembly 100 can be equipped with a safety belt to further improve the safety of children when using the scooter. The rear handlebar 150 and the push rod 140 work together to assist in pushing the scooter. The front grip 170 works in conjunction with the steering stick 160 to allow children to drive independently. The rear handlebar 150 adopts an ergonomic grip shape to increase the comfort of parents when pushing the scooter. The connection between the front grip 170 and the steering stick 160 is tight and flexible, allowing children to easily control the direction when riding the scooter.

[0032] Example 3

[0033] Reference Figure 1-4 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0034] In this embodiment, one end of the movable rod 230 is fixedly connected to the railing 220, and the other end of the movable rod 230 extends into the inner cavity of the fixed rod 210 and is slidably connected to the inner cavity of the fixed rod 210. The fixed rod 210 is movably connected to the sliding seat 330 through a rotating shaft.

[0035] The end of the spring protrusion 320 away from the movable rod 230 extends into the inner cavity of the limiting hole 310 and engages with the inner cavity of the limiting hole 310.

[0036] The positioning hole 350 is formed on the surface of the push rod 140. One end of the locking bolt 340 passes through the sliding seat 330 and extends into the inner cavity of the positioning hole 350, and is threadedly connected to the inner cavity of the positioning hole 350.

[0037] like Figure 1-4 As shown, one end of the locking bolt 340 is screwed into the inner cavity of the positioning hole 350, and the locking bolt 340 is rotated to lock it. At this time, the position of the sliding seat 330 on the surface of the push rod 140 is fixed, realizing the height adjustment of the guardrail. Pressing the spring protrusion 320 and pulling the railing 220 at the same time can adjust the width of the guardrail. When pulled to the appropriate position, the spring protrusion 320 penetrates into the limiting hole 310 under the action of elasticity and is firmly locked in the inner cavity of the limiting hole 310, thereby realizing the fixation of the movable rod 230 relative to the fixed rod 210. At this time, the position of the railing 220 is locked and cannot be moved at will. It is not only simple in structure and easy to operate, but also can effectively ensure the stability and safety of the railing 220 in different positions.

[0038] In use, the guardrail assembly 200 includes a fixed rod 210, a railing 220, and a movable rod 230, forming a protective structure around the child. The adjustment assembly 300 is the key part to realize the adjustable function of the guardrail, including a limiting hole 310, a spring protrusion 320, a sliding seat 330, a locking bolt 340, and a positioning hole 350, used to adjust the height and width of the guardrail and to lock it. The sliding seat 330 can slide up and down on the surface of the push rod 140. By adjusting its position, the entire guardrail assembly 200 is moved up and down. The locking bolt 340 is used to lock the position of the guardrail. Insert the corresponding positioning hole 350 and rotate the locking bolt 340 to complete the fixation. The movable rod 230 can slide in the inner cavity of the fixed rod 210, allowing the guardrail 220 to extend and retract laterally. The spring protrusion 320 is installed on the surface of the movable rod 230 and will automatically engage with the limiting hole 310 on the fixed rod 210 during sliding, thereby realizing the lateral position adjustment. With the cooperation of the adjustment component 300, the width and height of the guardrail can be adjusted according to the actual needs of children, thereby improving the flexibility of scooter use.

[0039] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0040] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. An adjustable guardrail for children's scooters, characterized in that: include, The guardrail assembly (200) includes a fixed rod (210), railings (220) located at both ends of the fixed rod (210), and movable rods (230) sliding between both ends of the inner cavity of the fixed rod (210); The adjustment assembly (300) includes a limiting hole (310) formed on the surface of the fixed rod (210), a spring protrusion (320) mounted on the surface of the movable rod (230), a sliding seat (330) fixedly connected to the fixed rod (210), and a locking bolt (340) and a positioning hole (350) for fixing the sliding seat (330).

2. The adjustable guardrail for children's scooters as described in claim 1, characterized in that: It also includes a scooter assembly (100) for mounting a guardrail assembly (200), the scooter assembly (100) including a scooter body (110), a main bar (120) located at the front end of the scooter body (110), a seat (130) located above the scooter body (110), and a push rod (140) fixed to the rear end of the seat (130), the sliding seat (330) being slidably connected to the surface of the push rod (140); The scooter assembly (100) also includes a rear handle (150) located on top of the push rod (140), a steering rod (160) for adjusting direction, and a front grip (170) located on top of the steering rod (160).

3. The adjustable guardrail for children's scooters as described in claim 2, characterized in that: The main rod (120) is fixedly connected to the scooter body (110), and the seat (130) is movably connected to the main rod (120) through a locking buckle.

4. The adjustable guardrail for children's scooters as described in claim 2, characterized in that: The rear handle (150) is fixed to the top of the push rod (140), and the front grip (170) is fixed to the top of the steering rod (160).

5. The adjustable guardrail for children's scooters as described in claim 1, characterized in that: One end of the movable rod (230) is fixedly connected to the railing (220), and the other end of the movable rod (230) extends into the inner cavity of the fixed rod (210) and is slidably connected to the inner cavity of the fixed rod (210). The fixed rod (210) is movably connected to the sliding seat (330) through a rotating shaft.

6. The adjustable guardrail for children's scooters as described in claim 1, characterized in that: The end of the spring protrusion (320) away from the movable rod (230) extends into the inner cavity of the limiting hole (310) and engages with the inner cavity of the limiting hole (310).

7. The adjustable guardrail for children's scooters as described in claim 1, characterized in that: The positioning hole (350) is opened on the surface of the push rod (140), and one end of the locking bolt (340) passes through the sliding seat (330) and extends into the inner cavity of the positioning hole (350), and is threadedly connected to the inner cavity of the positioning hole (350).