A type of replaceable stroller wheel

Abstract

This utility model relates to the field of children's vehicle technology and discloses a replaceable children's vehicle wheel, including a tire. One end of the tire is fixedly connected to a locking block, and the other end of the tire has a locking groove. A wear indicator strip is provided on the outer wall of the tire. A right wheel hub is provided on the inner wall of the tire. A left wheel hub is fixedly connected to the left side of the right wheel hub by bolts. A bushing is fixedly connected to the middle of the right wheel hub. A limit rod is connected to the right end of the bushing via a rotating assembly. A compression spring is fitted on the outer wall of the limit rod, and a fixing plate is fixedly connected to the middle end of the limit rod. A rotating shaft is slidably connected to the inner wall of the bushing. In this utility model, the tire adopts a segmented solid rubber design, allowing for individual segment replacement, reducing maintenance costs. The wear indicator strip also prevents potential hazards. The wheel supports quick disassembly and replacement, improving efficiency. Furthermore, the protective cap and fixing block prevent accidental contact by children, enhancing safety and reliability.

Description

Technical Field

[0001] This utility model relates to the field of children's vehicle technology, and in particular to a children's vehicle wheel that can be replaced individually. Background Technology

[0002] As an essential tool for children's travel, the safety, convenience, and durability of strollers have always been key focuses in their design and development. Stroller wheels, as one of the core components, directly affect the stroller's performance and safety. With the increasing frequency of stroller use, wheel wear has become a prominent issue. Reducing maintenance costs, improving replacement efficiency, and ensuring safety have become urgent technical problems to be solved.

[0003] Most existing stroller wheels use a solid rubber design, meaning that once a part wears out significantly, the entire wheel usually needs to be replaced, leading to high maintenance costs. Furthermore, the disassembly and replacement of traditional wheels is complex, typically requiring specialized tools, increasing the difficulty and time commitment. More importantly, some designs lack effective child safety measures, posing a risk of wheels detaching due to accidental operation. Therefore, designing a stroller wheel that is easy to replace in sections, simple to operate, and highly safe has become a pressing technical problem. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a replaceable children's stroller wheel. The tire adopts a segmented solid rubber design, which can be replaced segment by segment, reducing maintenance costs. It also has a wear indicator strip to prevent potential hazards. The wheel supports quick disassembly and replacement, improving efficiency. The protective cap and fixing block can prevent children from accidentally touching the wheel, improving safety and reliability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a replaceable children's stroller wheel, including a tire, a locking block fixedly connected to one end of the tire, a locking groove provided at the other end of the tire, a wear indicator strip provided on the outer wall of the tire, a right wheel hub slidably connected to the inner wall of the tire, a left wheel hub fixedly connected to the left side of the right wheel hub by bolts, a bushing fixedly connected to the middle of the right wheel hub, a limit rod connected to the right end of the bushing via a rotating assembly, a compression spring sleeved on the outer wall of the limit rod, a fixing plate fixedly connected to the middle end of the limit rod, and a rotating shaft slidably connected to the inner wall of the bushing.

[0006] Furthermore, the rotating assembly includes fixed blocks that are fixedly connected to the upper and lower sides of the right end of the bushing. A protective cap is threaded onto the outer wall of the upper end of the fixed block. A pulling bracket is abutted against the top of the fixed block. The upper end of the limiting rod is rotatably connected to the middle of the pulling bracket.

[0007] Furthermore, the upper end of the compression spring is connected to the inner wall of the fixed block, and the lower end of the compression spring is connected to the upper end of the fixed plate.

[0008] Furthermore, the outer wall of the limiting rod is slidably connected to the inner wall of the fixing block, and the fixing plate is slidably connected to the inner wall of the fixing block.

[0009] Furthermore, the pull bracket is located inside the protective cap.

[0010] Furthermore, a limiting groove is provided on both the upper and lower sides of one end of the rotating shaft, and the lower outer wall of the limiting rod is slidably connected to the inner wall of the limiting groove.

[0011] Furthermore, the middle end of the left wheel hub is sleeved on the outer wall of the left end of the bushing.

[0012] Furthermore, the upper end of the right wheel hub abuts against the right side of the tire, and the upper end of the left wheel hub abuts against the left side of the tire.

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

[0014] 1. In this utility model, the tire adopts a segmented design, with each segment precisely spliced ​​together using blocks and grooves. When a segment experiences severe wear, the user can replace that segment individually without replacing the entire tire, significantly reducing maintenance costs. Furthermore, the color-gradient wear indicator strip on the tire's outer sidewall displays a red warning when the wear reaches a critical point, promptly reminding the user to replace or repair the tire, thereby effectively preventing safety hazards and extending its service life.

[0015] 2. In this utility model, the wheel design supports quick disassembly and replacement. By rotating the protective cap and operating the pull bracket, the wheel can be easily slid out without complicated tools or operations, greatly improving replacement efficiency. At the same time, the protective cap and upper and lower fixing blocks effectively prevent children from accidentally touching the wheel and causing it to fall off, further improving the safety and reliability of use. Attached Figure Description

[0016] Figure 1 This is a perspective view of a replaceable stroller wheel according to the present invention.

[0017] Figure 2 This utility model provides a tire structure diagram for a replaceable stroller wheel.

[0018] Figure 3 This utility model provides a hub structure diagram of a replaceable stroller wheel.

[0019] Figure 4 This is a structural diagram of a rotating assembly for a replaceable stroller wheel proposed in this utility model.

[0020] Legend:

[0021] 1. Tire; 2. Locking block; 3. Locking groove; 4. Wear indicator bar; 5. Right wheel hub; 6. Left wheel hub; 7. Bolt; 8. Bushing; 9. Fixing block; 10. Protective cap; 11. Pull bracket; 12. Limiting rod; 13. Compression spring; 14. Fixing plate; 15. Rotating shaft; 16. Limiting groove. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1-3 An embodiment of this utility model provides: a replaceable children's stroller wheel, including a tire 1, a locking block 2 fixedly connected to one end of the tire 1, a locking groove 3 provided at the other end of the tire 1, a wear indicator strip 4 provided on the outer wall of the tire 1, a right wheel hub 5 slidably connected to the inner wall of the tire 1, a left wheel hub 6 fixedly connected to the left side of the right wheel hub 5 by bolts 7, the upper end of the right wheel hub 5 abutting against the right side of the tire 1, the upper end of the left wheel hub 6 abutting against the left side of the tire 1, a bushing 8 fixedly connected to the middle of the right wheel hub 5, and the middle end of the left wheel hub 6 sleeved on the outer wall of the left end of the bushing 8.

[0024] Specifically, this wheel adopts a unique segmented structure, with the entire tire 1 divided into four parts. Each tire segment 1 engages with each other via locking blocks 2 and locking grooves 3 at its upper and lower ends, forming a complete tire 1. The locking blocks 2 and locking grooves 3 are metal components, surrounded by solid rubber to ensure stable engagement. A major advantage of this design is that when tire 1 shows wear in a localized area, it is not necessary to replace the entire tire 1; only the worn section needs to be replaced, effectively reducing maintenance costs. The outer wall of tire 1 is equipped with a wear indicator strip 4, which uses a color gradient design. During normal use, as tire 1 wears down, when the wear reaches a critical point, the indicator strip will display a red warning, reminding the user that tire 1 needs to be replaced in time. When installing the wheel, first install the assembled tire 1 onto the right wheel hub 5. Then use bolts 7 to fix the left wheel hub 6 to the left side of the right wheel hub 5. The outer edges of the left wheel hub 6 and the right wheel hub 5 are provided with annular grooves that engage with the flange of the tire 1. In this way, the tire 1 is securely clamped between the right wheel hub 5 and the left wheel hub 6.

[0025] Reference Figure 1 and Figure 4A fixing block 9 is fixedly connected to the upper and lower sides of the right end of the bushing 8. A protective cap 10 is threadedly connected to the upper outer wall of the fixing block 9. A pull bracket 11 is abutted against the top of the fixing block 9. The pull bracket 11 is set inside the protective cap 10. The upper end of the limiting rod 12 is rotatably connected to the middle end of the pull bracket 11. A compression spring 13 is sleeved on the outer wall of the limiting rod 12. A fixing plate 14 is fixedly connected to the middle end of the limiting rod 12. The outer wall of the limiting rod 12 is slidably connected to the inner wall of the fixing block 9. The fixing plate 14 is slidably connected to the inner wall of the fixing block 9. The upper end of the compression spring 13 is connected to the inner wall of the fixing block 9. The lower end of the compression spring 13 is connected to the upper end of the fixing plate 14. A rotating shaft 15 is slidably connected to the inner wall of the bushing 8. A limiting groove 16 is opened on the upper and lower sides of one end of the rotating shaft 15. The lower outer wall of the limiting rod 12 is slidably connected to the inner wall of the limiting groove 16.

[0026] Specifically, when it is necessary to replace the wheel, the operating steps are as follows: First, rotate the protective cap 10 and remove it; then, lift and pull the bracket 11 upwards, which in turn moves the limiting rod 12 upwards, and the fixing plate 14 also moves upwards and compresses the spring 13; when both the upper and lower limiting rods 12 slide out of the limiting groove 16 on the rotating shaft 15, the entire wheel can be slid to the left to remove it. The whole process is convenient and quick. In addition, to ensure safety, the wheel is equipped with a protective cap and two upper and lower fixing blocks 9. These components can effectively prevent children from accidentally touching the wheel and reduce the risk of the wheel accidentally falling off.

[0027] Working Principle: The tire 1 of this wheel adopts a segmented design, consisting of 4 segments. These segments are joined together by the upper and lower locking blocks 2 and locking grooves 3 to form a complete tire 1. Individual segments can be replaced when worn, reducing maintenance costs. The wear indicator strip 4 on the outer wall of the tire 1 features a color gradient, displaying a red warning when the wear reaches a critical point. The joined tire 1 is installed on the right wheel hub 5, and then the left wheel hub 6 is fixedly connected to the left side of the right wheel hub 5 using bolts 7. The right wheel hub 5 and the left wheel hub 6 then hold the tire 1 in place. When the wheel needs to be replaced, first rotate the protective cap 10 to remove it. Then, move the bracket 11 upwards, causing the limiting rod 12 to move upwards as well. The fixing plate 14 moves upwards accordingly, compressing the spring 13. When both the upper and lower limiting rods 12 slide out of the limiting grooves 16 on the rotating shaft 15, the entire wheel can be slid out to the left.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A single replaceable pram wheel comprising a tyre (1) characterised in that: One end of the tire (1) is fixedly connected to a locking block (2), and the other end of the tire (1) is provided with a locking groove (3). The outer wall of the tire (1) is provided with a wear indicator strip (4). The inner wall of the tire (1) is slidably connected to a right wheel hub (5). The left side of the right wheel hub (5) is fixedly connected to a left wheel hub (6) by bolts (7). The middle part of the right wheel hub (5) is fixedly connected to a bushing (8). The right end of the bushing (8) is connected to a limit rod (12) through a rotating assembly. The outer wall of the limit rod (12) is fitted with a compression spring (13). The middle end of the limit rod (12) is fixedly connected to a fixing plate (14). The inner wall of the bushing (8) is slidably connected to a rotating shaft (15).

2. A replaceable stroller wheel according to claim 1, wherein: The rotating assembly includes a fixing block (9) fixedly connected to the upper and lower sides of the right end of the bushing (8). A protective cap (10) is threadedly connected to the upper outer wall of the fixing block (9). A pulling bracket (11) is abutted at the top of the fixing block (9). The upper end of the limiting rod (12) is rotatably connected to the middle end of the pulling bracket (11).

3. A replaceable child's vehicle wheel according to claim 1, wherein: The upper end of the compression spring (13) is connected to the inner wall of the fixing block (9), and the lower end of the compression spring (13) is connected to the upper end of the fixing plate (14).

4. A replaceable stroller wheel according to claim 1, wherein: The outer wall of the limiting rod (12) is slidably connected to the inner wall of the fixing block (9), and the fixing plate (14) is slidably connected to the inner wall of the fixing block (9).

5. A replaceable stroller wheel according to claim 2, wherein: The pull bracket (11) is located inside the protective cap (10).

6. A replaceable child's vehicle wheel according to claim 1, wherein: The rotating shaft (15) has limit grooves (16) on both the upper and lower sides at one end, and the lower outer wall of the limit rod (12) is slidably connected to the inner wall of the limit groove (16).

7. A replaceable child's vehicle wheel according to claim 1, wherein: The middle end of the left wheel hub (6) is fitted onto the outer wall of the left end of the bushing (8).

8. A replaceable stroller wheel according to claim 1, wherein: The upper end of the right wheel hub (5) abuts against the right side of the tire (1), and the upper end of the left wheel hub (6) abuts against the left side of the tire (1).

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