Trundle with decorative cover

Abstract

The utility model discloses a trundle with a decorative cover, which comprises a trundle support, trundle cores which enable the trundle to rotate are arranged on two sides of the trundle support through pipe fittings, trundle PU (polyurethane) edge covering sleeves are arranged on outer rings of the trundle cores, a trundle seat is arranged on the rear side of the trundle support, and the detachable hollow decorative cover is arranged on the outer side of each trundle PU edge covering sleeve. And in cooperation with a dismounting clamping cylinder and a strip-shaped ejector block structure on the back face of the decorative cover, tool-free quick replacement of the decorative part is achieved. According to the technical scheme, a user can conveniently replace the decorative covers with different colors according to use scenes or individual requirements, the diversified appearance aesthetic requirements are met, meanwhile, cost waste caused by overall replacement of the trundle is avoided, and the product suitability and the user experience are remarkably improved. According to the trundle support, the combination of the circular frame and the reinforcing plates is adopted, a stable mechanical supporting structure is formed through the reinforcing plates distributed at equal intervals, the load pressure is effectively dispersed, the deformation resistance of the support is enhanced, and it is ensured that the structural integrity of the trundle is kept in the heavy-load environment.

Description

Technical Field

[0001] This utility model belongs to the field of caster technology, specifically relating to a caster with a decorative cover. Background Technology

[0002] In modern industry and daily life, casters are increasingly widely used as key components for the flexible movement of equipment, furniture, and other moving objects. As people's demands for product aesthetics and personalization continue to rise, casters not only need reliable mobility and load-bearing capacity, but also require a certain degree of flexibility and aesthetic appeal in their appearance.

[0003] Existing casters typically employ fixed decorative structures, making them difficult to easily disassemble and replace to suit different usage scenarios and user preferences, thus failing to meet diverse decorative needs. Furthermore, regarding structural stability, some caster brackets are prone to deformation under heavy loads, affecting the caster's normal use and lifespan. Additionally, the connection structure between the caster and connecting components may lack effective limiting and cushioning during long-term use, leading to wobbling or instability during caster movement. Utility Model Content

[0004] The purpose of this invention is to provide a caster with a decorative cover to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a caster with a decorative cover, comprising:

[0006] The caster bracket has caster cores on both sides through pipe fittings to allow the caster to rotate. The outer ring of each caster core is provided with a PU edging sleeve to keep the caster core rolling smoothly. The rear side of the caster bracket is provided with a caster seat to keep the caster balanced.

[0007] The center of the end of the caster seat is limited by a caster connecting rod that allows the caster to move in all directions. The outer side of the PU edging sleeve of the caster is inserted and snapped with a hollow decorative cover that can be disassembled and replaced with different colors.

[0008] Preferably, the caster bracket has a circular structure, and the inner and outer rings of the caster bracket are integrally formed with reinforcing plates at equal intervals to prevent the caster from deforming under the weight, forming a stable mechanical support structure. This can effectively distribute the load pressure, improve the overall rigidity of the bracket, avoid structural deformation caused by excessive load, and extend the service life of the caster.

[0009] Preferably, the hollow decorative cover has an outwardly extending detachable clamp corresponding to the PU edging sleeve of the caster, and the surface of the detachable clamp is uniformly provided with strip-shaped protruding structures that press against the inside of both ends of the through pipe fitting. Users can quickly detach and install the decorative cover by simply inserting and removing it, and can replace the decorative cover with different colors without tools, meeting diverse appearance requirements and improving the product's personalized adaptability.

[0010] Preferably, the through pipe fitting has a fixing ring protruding outward on its middle surface, and the through pipe fitting is fixed by the protruding fixing ring after it is inserted into the inner ring of the caster bracket. This prevents the through pipe fitting from shifting due to vibration or force during long-term use, ensures the reliability of the connection between the caster core and the bracket, and indirectly improves the stability of the caster when it rolls.

[0011] Preferably, the caster core is sleeved and fixed at both ends of the through pipe fitting, and the PU edging sleeve of the caster is sleeved on the outer surface of the caster core to facilitate later disassembly and replacement. This achieves the functions of buffering and noise reduction, protecting the caster core, and supports tool-free quick disassembly and replacement.

[0012] Preferably, the upper end of the caster connecting rod is fitted with two annular elastic elements, and the upper end of the caster connecting rod is fitted with a PA rubber sleeve for limiting the annular elastic elements, which can effectively absorb the vibration and impact during equipment movement, reduce the gap and sway between the caster and the connecting parts, and improve the stability and smoothness of the overall movement process.

[0013] Compared with the prior art, the technical effects and advantages of this utility model are: the caster with a decorative cover,

[0014] By installing a detachable hollow decorative cover on the outside of the PU edging sleeve of the caster, along with the disassembly clip and strip-shaped top block structure on the back of the cover, tool-free and quick replacement of decorative components is achieved. Users can easily replace the decorative cover with different colors according to usage scenarios or personalized needs, breaking the limitations of traditional fixed decorations on casters, satisfying diverse aesthetic requirements, and avoiding the cost waste caused by replacing the entire caster, significantly improving product adaptability and user experience.

[0015] The caster bracket adopts an integrated design of a circular frame and reinforcing plates. The equidistantly distributed reinforcing plates form a stable mechanical support structure, effectively dispersing load pressure, enhancing the bracket's resistance to deformation, and ensuring that the casters maintain structural integrity under heavy load conditions.

[0016] The fixed ring limiting structure of the through pipe fitting and the ring elastic buffer design of the caster connecting rod are optimized from the aspects of component connection reliability and dynamic buffer performance. They not only prevent rolling deviation caused by displacement of the through pipe fitting, but also absorb vibration impact through elastic damping, reduce gap sway when the caster is connected to the equipment, achieve smoothness and quietness during movement, and take into account both load-bearing capacity and operation comfort. Attached Figure Description

[0017] Figure 1 This is an exploded structural diagram of the caster of this utility model.

[0018] In the diagram: 1. Caster bracket; 2. Pipe fitting; 3. Caster core; 4. Caster PU edging sleeve; 5. Caster seat; 6. Caster connecting rod; 7. Hollow decorative cover; 8. Reinforcing plate; 9. Disassembly and assembly clip; 10. Strip top block; 11. Fixing ring; 12. Annular elastic element; 13. PA rubber sleeve. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1 This utility model provides a technical solution: a caster with a decorative cover, comprising:

[0021] The caster bracket 1 is integrally formed from high-strength metal material, with caster cores 3 on both sides via pipe fittings 2 to allow the casters to rotate. The caster cores 3 are made of wear-resistant alloy steel, and a PU edging sleeve 4 is tightly fitted around their outer ring to ensure smooth rolling of the caster cores 3. This PU edging sleeve 4 has good elasticity and shock absorption performance, effectively reducing rolling noise. A caster seat 5 is provided at the rear of the caster bracket 1 to maintain the balance of the casters. The caster seat 5 is firmly connected to the caster bracket 1 through a welding process to ensure structural stability.

[0022] The caster seat 5 has a limiting hole at its center, which is adapted to the caster connecting rod 6 that allows the caster to move in all directions. The limiting insertion is achieved through an interference fit. The outer side of the caster PU edging sleeve 4 is designed with a slot structure for inserting and snapping together hollow decorative covers 7 of different colors. The hollow decorative cover 7 is made of lightweight plastic, and its surface can be coated and printed to form various colors and patterns.

[0023] The caster bracket 1 has a circular structure, and the inner and outer rings of the caster bracket 1 are integrally formed with reinforcing plates 8 at equal intervals to prevent the caster from deforming under the weight. The reinforcing plates 8 are radially distributed, and their thickness is the same as that of the main body of the caster bracket 1. By enhancing the rigidity of the bracket, the load-bearing capacity of the caster is effectively improved.

[0024] The hollow decorative cover 7 extends outward from the side corresponding to the PU edging sleeve of the caster, forming a disassembly and assembly clip 9. The disassembly and assembly clip 9 is made of elastic plastic and has a certain degree of flexibility. Furthermore, the surface of the disassembly and assembly clip 9 is uniformly provided with strip-shaped protruding structures that press against the inside of both ends of the through pipe fitting 2. The side of the strip-shaped top block 10 that contacts the inner wall of the through pipe fitting 2 is provided with anti-slip texture to enhance the firmness of the connection.

[0025] A fixing ring 11 protrudes from the middle surface of the through pipe fitting 2, and the fixing ring 11 and the through pipe fitting 2 are integrally formed. After the through pipe fitting 2 is inserted into the inner ring of the caster bracket 1, it is fixed by the cooperation of the protruding fixing ring 11 with the limiting groove of the inner ring of the caster bracket 1 to prevent the through pipe fitting 2 from moving axially during use.

[0026] The caster core 3 is sleeved and fixed at both ends of the through pipe 2. The sleeved part is fixed by a key connection or pin to ensure that there is no relative rotation between the caster core 3 and the through pipe 2. The caster PU edging sleeve 4 is sleeved on the outer surface of the caster core 3, and the two are bonded together by a high-strength adhesive, which not only facilitates later disassembly and replacement, but also ensures a tight connection.

[0027] Two annular elastic elements 12 are sleeved on the upper end of the caster connecting rod 6. The annular elastic elements 12 are made of spring steel and have good elasticity and fatigue strength. A PA rubber sleeve 13 is sleeved on the upper end of the caster connecting rod 6 to limit the annular elastic elements 12. The inner wall of the PA rubber sleeve 13 is provided with a protruding structure that matches the outer surface of the caster connecting rod 6 to prevent the PA rubber sleeve 13 from rotating or sliding axially on the caster connecting rod 6.

[0028] Specifically, in use, the movement and load-bearing principle is as follows: The through-pipe 2 passes through the inner ring of the caster bracket 1. The caster core 3 is sleeved and fixed to both ends of the through-pipe 2. The caster PU edging sleeve 4 is then sleeved onto the outer surface of the caster core 3, forming a rolling structure. When the caster moves under load, the caster PU edging sleeve 4 contacts the ground. Relying on its good wear resistance and elasticity, it provides smooth rolling conditions for the caster core 3 while dispersing the ground reaction force. The caster bracket 1 adopts a circular structure and is equipped with a reinforcing plate 8. When bearing the weight of equipment or furniture, the reinforcing plate 8 evenly distributes the load to various parts of the bracket, avoiding localized stress concentration that could lead to bracket deformation, and ensuring that the caster can still move stably under load.

[0029] The principle of decorative cover installation and replacement: The hollow decorative cover 7 is inserted into the outside of the caster PU edging sleeve 4 through the disassembly and assembly clip 9 extending from its back. The strip-shaped top block 10 on the surface of the disassembly and assembly clip 9 is pressed tightly against the inside of both ends of the through pipe fitting 2. The outward protrusion of the strip-shaped top block 10 forms an elastic engagement with the inner wall of the through pipe fitting 2, achieving a stable installation of the decorative cover 7. When the user needs to replace the decorative cover 7, simply pull the decorative cover 7 outward. The strip-shaped top block 10 deforms under force and detaches from the through pipe fitting 2, making it easy to remove. Then, insert the new decorative cover 7 to complete the replacement, meeting personalized decoration needs.

[0030] Component connection and fixing principle: The fixing ring 11 protruding outward in the middle of the through pipe fitting 2, after passing through the inner ring of the caster bracket 1, forms a limiting fit with the inner ring of the bracket, preventing the through pipe fitting 2 from shifting axially during use and ensuring a reliable connection between the caster core 3 and the caster bracket 1. The caster seat 5 and the caster connecting rod 6 adopt a limiting insertion method. The two annular elastic elements 12 and PA rubber sleeves 13 sleeved on the upper end of the caster connecting rod 6 can absorb the vibration and impact during the movement when the caster is connected to equipment or furniture. The PA rubber sleeves 13 limit the annular elastic elements 12 to prevent them from shifting, ensuring the connection stability between the caster and the connecting parts, reducing shaking, and achieving smooth movement.

[0031] 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 caster with a decorative cover, characterized in that, include: The caster bracket (1) has caster cores (3) on both sides of the caster bracket (1) through the through pipe fittings (2) to enable the caster to rotate. The outer ring of the caster core (3) is provided with caster PU edge sleeves (4) to keep the caster core (3) rolling smoothly. The rear side of the caster bracket (1) is provided with a caster seat (5) to keep the caster balanced. The center of the end of the caster seat (5) is limited by a caster connecting rod (6) that allows the caster to move in all directions, and a hollow decorative cover (7) for disassembly and replacement of different colors is inserted and snapped into the outside of the PU edging sleeve (4) of the caster.

2. A caster with a decorative cover according to claim 1, characterized in that: The caster bracket (1) has a circular structure, and the inner and outer rings of the caster bracket (1) are integrally formed at equal intervals and have a reinforcing plate (8) to prevent the caster from deforming when bearing weight.

3. A caster with a decorative cover according to claim 1, characterized in that: The hollow decorative cover (7) is a disassembly and assembly clip (9) that extends outward from one side of the PU edge sleeve (4) of the caster, and the surface of the disassembly and assembly clip (9) is uniformly provided with strip-shaped convex structures that are pressed against the inside of both ends of the through pipe fitting (2).

4. A caster with a decorative cover according to claim 1, characterized in that: The central surface of the through pipe fitting (2) is provided with a fixing ring (11), and the through pipe fitting (2) is fixed by the protruding fixing ring (11) after it is inserted into the inner ring of the caster bracket (1).

5. A caster with a decorative cover according to claim 1, characterized in that: The caster core (3) is sleeved and fixed at both ends of the through pipe fitting (2), and the caster PU edge sleeve (4) is sleeved on the outer surface of the caster core (3) to facilitate later disassembly and replacement.

6. A caster with a decorative cover according to claim 1, characterized in that: The upper end of the caster connecting rod (6) is fitted with two annular elastic elements (12), and the upper end of the caster connecting rod (6) is fitted with a PA rubber sleeve (13) for limiting the annular elastic elements (12).

Images