Anti-skid wheel

Abstract

The utility model provides an anti-skidding wheel, which aims at realizing an anti-skidding wheel structure which is simple and practical in structure and convenient to maintain, comprises a hub and a bearing assembly, and is characterized in that an annular groove is formed on the wheel surface of the hub, a wheel sleeve made of a rubber material is embedded in the annular groove, and the bearing assembly is arranged on the wheel sleeve. The wheel sleeve comprises an annular main body and a plurality of anti-skid blocks arranged on the outer annular surface of the annular main body, gaps are formed among the anti-skid blocks, all or part of the anti-skid blocks extend out of the annular groove after the wheel sleeve is embedded into the annular groove, a plurality of convex thorns are arranged in the annular groove, and the convex thorns are used for stabbing towards the inner annular surface of the annular main body when the wheel sleeve is embedded into the annular groove. The hub is provided with a shaft hole penetrating left and right and two bearing cavities sharing the same central axis with the shaft hole, the two bearing cavities are located on the two sides of the hub respectively, and bearing assemblies are installed in the two bearing cavities.

Description

Technical Field

[0001] The utility model relates to an anti-slip wheel applied to a caster wheel. Background Art

[0002] The existing anti-slip design of caster wheels generally involves compounding a rubber wheel surface on the wheel hub. By utilizing the deformation characteristics of the rubber wheel surface, the friction with the ground is increased, enabling the wheel hub to achieve better grip and avoid slipping. Moreover, for example, an anti-slip caster wheel disclosed in Chinese Patent CN201821544320.3 needs to form anti-slip patterns / anti-slip grooves on the rubber wheel surface to enhance the anti-slip effect. Such a structure not only requires overall coating of the wheel surface of the wheel hub, with relatively complex process and high cost, but also is difficult to directly repair on the wheel hub when the rubber coating wears, and often requires replacing the wheel, increasing the maintenance cost. Content of the Utility Model

[0003] The utility model provides an anti-slip wheel, aiming to achieve an anti-slip wheel structure with simple and practical structure and convenient maintenance, which is specifically realized by the following technical means:

[0004] An anti-slip wheel includes a wheel hub and a bearing assembly. An annular groove is formed on the wheel surface of the wheel hub, and a wheel sleeve made of rubber material is embedded in the annular groove. The wheel sleeve includes an annular main body and a plurality of anti-slip blocks arranged on the outer ring surface of the annular main body. Intervals are formed between the anti-slip blocks, and all or part of the anti-slip blocks protrude from the annular groove after the wheel sleeve is embedded in the annular groove.

[0005] Preferably, a plurality of barbs are provided in the annular groove, and the barbs are used to stab the inner ring surface of the annular main body when the wheel sleeve is embedded in the annular groove.

[0006] Preferably, the wheel hub has an axial hole penetrating from left to right and two bearing cavities coaxial with the axial hole. The bearing assemblies are installed on both sides of the wheel hub in the two bearing cavities respectively.

[0007] Preferably, the wheel hub is equipped with a left connecting shaft and a right connecting shaft. The left connecting shaft and the right connecting shaft respectively pass through the bearing assemblies on both sides of the wheel hub and are connected to the axial hole.

[0008] Preferably, a threaded groove is provided at the docking end of the left connecting shaft, a threaded stud is provided at the docking end of the right connecting shaft, and clamping portions for allowing a tool to bite and rotate the shaft body are respectively provided at the outer ends of the left connecting shaft and the right connecting shaft.

[0009] Compared with the prior art, the advantages of the present utility model are as follows: It adopts a separable design of the wheel hub and the wheel sleeve. A ring groove for the wheel sleeve to be embedded is provided on the wheel hub. By utilizing the friction between the wheel sleeve made of rubber material and the ground, better grip of the wheel hub can be achieved, avoiding slippage. At the same time, even if the wheel sleeve is worn and the anti-slip performance decreases, it can be directly solved by replacing the wheel sleeve, and both the replacement cost and the time cost are relatively low, which is close to the actual use requirements. In addition, the shape of the anti-slip blocks and the shape of the gaps formed between the anti-slip blocks can be designed according to different anti-slip or noise reduction requirements. Thus, the wheel hub and the wheel sleeve can be combined into wheels suitable for different usage scenarios, being flexible and variable. Description of the Drawings

[0010] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the anti-slip wheel.

[0011] Figure 2 It is a schematic diagram of the disassembled structure of Embodiment 1 of the anti-slip wheel.

[0012] Figure 3 It is a schematic diagram of the overall structure of Embodiment 2 of the anti-slip wheel.

[0013] Figure 4 It is a schematic diagram of the partial disassembled structure of Embodiment 2 of the anti-slip wheel. Detailed Embodiments

[0014] The following further describes the solution of the present application in conjunction with the drawings:

[0015] Embodiment 1

[0016] See the appendix Figure 1 and 2, the anti-slip wheel includes a wheel hub 1 and a bearing assembly 2. A ring groove 10 is formed on the tread surface of the wheel hub 1, and a wheel sleeve 3 made of rubber material is embedded in the ring groove 10. The wheel sleeve 3 includes a ring-shaped main body 31 and a plurality of anti-slip blocks 32 provided on the outer ring surface of the ring-shaped main body 31. The top surface of the anti-slip block 32 is a rough surface to increase friction. A gap 33 is formed between the anti-slip blocks 32. A number of protrusions 11 are provided in the ring groove 10. The protrusions 11 are used to pierce the inner ring surface of the ring-shaped main body 31 when the wheel sleeve 3 is embedded in the ring groove 10 to prevent the wheel sleeve 3 from sliding relative to the ring groove 10. After the wheel sleeve 3 is embedded in the ring groove 10, all or part of the anti-slip blocks 32 protrude from the ring groove 10. Generally, part of the anti-slip blocks 32 is selected to protrude from the ring groove 10, so that the ring-shaped main body 31 as the carrier of the anti-slip blocks 32 can be completely embedded in the ring groove 10, avoiding its fracture due to wear. When the anti-slip blocks 32 are in contact with the ground, they are squeezed and deformed to achieve better grip and avoid slipping. If it is necessary to improve the sound insulation effect of the wheel, the outer ring surface of the ring-shaped main body 31 can be selected to be flush with or exceed the notch of the ring groove 10. At this time, the wheel sleeve 3 is mainly in contact with the ground, which has an obvious noise reduction effect, but of course, the loss of the wheel sleeve 3 will also be aggravated.

[0017] This product adopts a separable design of the wheel hub 1 and the wheel sleeve 3. The friction between the rubber material wheel sleeve 3 and the ground enables the wheel hub 1 to achieve better grip and avoid slipping. At the same time, even if the wheel sleeve 3 is worn and the anti-slip performance decreases, it can be directly solved by replacing the wheel sleeve 3. The replacement cost and time cost are both relatively low, which is close to the actual use requirements. In addition, the shape of the anti-slip blocks 32 and the shape of the gap formed between the anti-slip blocks 32 can be designed according to different anti-slip or sound insulation requirements. Thus, the wheel hub 1 and the wheel sleeve 3 can be combined into wheels suitable for different usage scenarios, which is flexible and variable.

[0018] To achieve more stable straight support and operation, the wheel hub 1 has an axially through hole 12 and two bearing cavities 13 coaxial with the axially through hole 12. The bearing assemblies 2 are installed on both sides of the wheel hub 1 in the two bearing cavities 13 respectively. Further, the wheel hub 1 is also equipped with a left connecting shaft 4 and a right connecting shaft 5. The left connecting shaft 4 and the right connecting shaft 5 respectively pass through the bearing assemblies 2 on both sides of the wheel hub 1 and are connected to the axially through hole 12. Among them: a threaded groove 41 is provided at the docking end of the left connecting shaft 4, a threaded stud 51 is provided at the docking end of the right connecting shaft 5, and clamping portions A for allowing a tool to bite and rotate the shaft body are respectively provided at the outer ends of the left connecting shaft 4 and the right connecting shaft 5. When the left connecting shaft 4 and the right connecting shaft 5 respectively pass through the bearing assemblies 2 on both sides of the wheel hub 1 to the axially through hole 12, the threaded groove 41 and the threaded stud 51 can be connected by rotating the shaft body of either side, and the disassembly and assembly are convenient.

[0019] Embodiment 2

[0020] See Appendix Figure 3 and4 , on the basis of the above-mentioned Embodiment 1, in this embodiment, two annular grooves 10 are formed on the wheel surface of the wheel hub 1, and a wheel sleeve 3 made of rubber material is respectively embedded in each annular groove. The wheel sleeve 3 includes an annular main body 31 and a plurality of anti-slip blocks 32 provided on the outer ring surface of the annular main body 31. The top surface of the anti-slip block 32 is a rough surface to increase friction. A gap 33 is formed between the anti-slip blocks 32. A plurality of protrusions 11 are provided in the annular groove 10. The protrusions 11 are used to pierce the inner ring surface of the annular main body 31 when the wheel sleeve 3 is embedded in the annular groove 10 to prevent the wheel sleeve 3 from sliding relative to the annular groove 10. After the wheel sleeve 3 is embedded in the annular groove 10, all or part of the anti-slip blocks 32 protrude from the annular groove 10, so as to form two anti-slip contact bands on the wheel surface of the wheel hub 1. On the one hand, the anti-slip effect is improved. On the other hand, the force of each anti-slip contact is averaged, which is suitable for implementation on a wide wheel hub in the shape of a drum.

[0021] The above preferred implementation manners should be regarded as examples of the implementation manners of the application solution of the present application. Any technical deductions, substitutions, improvements, etc. that are identical, similar to or based on the application solution of the present application should be regarded as the protection scope of this patent.

Claims

1. An anti-skid wheel, comprising a wheel hub and a bearing assembly, characterized in that: The wheel surface of the wheel hub is formed with an annular groove, and a wheel sleeve made of rubber material is embedded in the annular groove. The wheel sleeve includes an annular body and a plurality of anti-sliding blocks arranged on the outer ring surface of the annular body, and gaps are formed between the anti-sliding blocks. After the wheel sleeve is embedded in the annular groove, the anti-sliding blocks are fully or partially extended out of the annular groove.

2. The anti-skid wheel according to claim 1, characterized in that: The top surface of the anti-sliding block is a rough surface.

3. The anti-skid wheel according to claim 1, characterized in that: A plurality of convex thorns are arranged in the annular groove, and the convex thorns are used to pierce the inner annular surface of the annular body when the wheel sleeve is embedded in the annular groove.

4. The anti-skid wheel according to claim 1, characterized in that: The wheel hub has an axial hole passing through the left and right sides and two bearing cavities sharing the same central axis with the axial hole. Bearing assemblies are installed in the two bearing cavities, which are respectively located on both sides of the wheel hub.

5. The anti-skid wheel according to claim 1, characterized in that: The wheel hub is equipped with a left connecting shaft and a right connecting shaft, and the left connecting shaft and the right connecting shaft respectively pass through the bearing assembly at both sides of the wheel hub and are connected to the shaft hole.

6. The anti-skid wheel according to claim 5, characterized in that: The butt end of the left connecting shaft is provided with a thread groove, and the butt end of the right connecting shaft is provided with a threaded boss.

7. The anti-skid wheel according to claim 6, characterized in that: The outer ends of the left connecting shaft and the right connecting shaft are respectively provided with clamping parts for tools to bite and rotate the shaft body.

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