A type of caster end cover for a floor scrubber

Abstract

This utility model discloses an end cover for a floor scrubber's universal wheel, comprising: an end cover body, the end cover body being configured as an inverted U-shape, the edge of the end cover body being bent inward to form a stepped retaining edge, the retaining edge being used for fitting and positioning with the universal wheel frame; a sealing assembly, including a sealing ring and a dustproof lip, the sealing ring being fixedly installed on the inner wall of the retaining edge, the dustproof lip being connected to the outer wall of the retaining edge; and a noise reduction assembly, including a noise reduction layer, the noise reduction layer being fixedly installed on the inner wall of the end cover body. This invention relates to the field of floor scrubber universal wheel end cover enclosures. Through the sealing ring on the inner wall of the retaining edge making close contact with the universal wheel frame, combined with the dustproof lip tilted towards the center and the dustproof curtain at the bottom, multiple layers of protection are formed, effectively preventing sewage and dust from entering the rotating parts of the universal wheel, reducing wear on parts, suitable for humid and dusty cleaning environments, and significantly extending the service life of the universal wheel.

Description

Technical Field

[0001] This utility model relates to the technical field of end caps for casters of floor scrubbers, specifically an end cap for casters of floor scrubbers. Background Technology

[0002] In large commercial venues such as shopping malls, commercial floor scrubbers, as core equipment for floor cleaning, need to operate continuously in environments with high traffic and complex floor conditions. Among them, casters are key components that ensure the flexible movement of the floor scrubber, and caster end caps serve as an important protective structure.

[0003] The existing caster end caps of commercial floor scrubbers have significant shortcomings in terms of sealing and protection. Shopping mall floors often have water stains from spilled beverages, mud and sand carried by pedestrians, and various small debris. Traditional end caps mostly use a single-layer sealing ring design, which has poor sealing performance with the wheel frame. This makes it very easy for sewage and dust to seep into the caster from the gaps. This not only causes rapid wear of rotating parts such as bearings, leading to malfunctions such as jamming and abnormal noise, but also significantly shortens the replacement cycle of the casters, increasing the equipment maintenance costs of the shopping mall.

[0004] Meanwhile, existing end caps are also ill-suited to the acoustic performance and structural durability of shopping malls. Shopping malls are highly sensitive to environmental noise, but traditional end caps lack targeted noise reduction designs, and the vibration noise from the rotating casters can interfere with the customer's shopping experience. Utility Model Content

[0005] The purpose of this utility model is to provide an end cap for a floor scrubber's universal wheel, in order to solve the problem mentioned in the background art that the end cap is difficult to adapt to the shopping mall scene in terms of acoustic performance and structural durability. Shopping malls are highly sensitive to environmental noise, but traditional end caps lack targeted noise reduction design, and the vibration noise when the universal wheel rotates will interfere with the customer's shopping experience.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A caster end cap for a floor scrubber, comprising:

[0008] The end cap body is configured as an inverted U-shape, and the edge of the end cap body is bent inward to form a stepped retaining edge, which is used to fit and position with the universal wheel frame;

[0009] Sealing assembly: includes a sealing ring and a dust lip, wherein the sealing ring is fixedly installed on the inner wall of the retaining edge, and the dust lip is connected to the outer wall of the retaining edge;

[0010] A noise reduction assembly includes a noise reduction layer, which is fixedly installed on the inner wall of the end cap body.

[0011] In a preferred embodiment of this utility model, the end cap body is injection molded from high-strength ABS engineering plastic. The diameter of the end cap body is adapted to the universal wheel frame, and the height of the flange is 5-8mm for fitting and positioning with the universal wheel frame. The end cap body is detachably and fixedly connected to the outer wall of the universal wheel frame by a buckle.

[0012] In a preferred embodiment of this utility model, the sealing ring is made of nitrile rubber and has a trapezoidal cross-section, and the inner wall of the retaining edge is provided with a sealing ring groove.

[0013] In a preferred embodiment of this utility model, the diameter of the sealing ring is larger than the diameter of the sealing ring groove, ensuring that the sealing ring is in close contact with the caster wheel frame.

[0014] In a preferred embodiment of this utility model, the dustproof lip is an integrally formed protrusion on the inner wall of the flange. The dustproof lip is made of polyurethane material, the height of the dustproof lip is 3-5mm, it is inclined towards the center of the end cover, and it elastically contacts the outer wall of the universal wheel shaft.

[0015] In a preferred embodiment of this utility model, a dustproof curtain is fixedly installed on the bottom outer wall of the end cap body, and the dustproof curtain is made of rubber.

[0016] In a preferred embodiment of this utility model, the outer surface of the end cap body is coated with a wear-resistant layer. The wear-resistant layer is a tungsten carbide coating with a coating thickness of 0.1-0.3 mm and a surface finish Ra≤0.8 μm, which is used to enhance the wear resistance and impact resistance of the end cap.

[0017] In a preferred embodiment of this utility model, the sound-absorbing layer is uniformly provided with honeycomb holes, the sound-absorbing layer is made of EPDM rubber, and the surface of the sound-absorbing layer is coated with a butyl rubber damping coating.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0019] 1. The sealing ring on the inner wall of the flange is in close contact with the caster wheel frame. Together with the dustproof lip that slopes towards the center and the dustproof curtain at the bottom, multiple layers of protection are formed to effectively prevent sewage and dust from entering the rotating parts of the caster, reduce wear on parts, and make it suitable for humid and dusty cleaning environments, significantly extending the service life of the caster.

[0020] 2. The sound-absorbing layer on the inner wall of the end cap and the butyl rubber damping coating on the surface can effectively absorb vibration noise, while the tungsten carbide wear-resistant layer on the outer surface enhances the wear resistance and impact resistance of the end cap. This not only reduces noise pollution when the floor scrubber is working, but also improves the durability of the end cap and enhances the overall user experience. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a schematic diagram of the main structure of an end cap for a floor scrubber's caster wheel.

[0023] Figure 2 This is an exploded structural diagram of the end cap of a caster wheel for a floor scrubber.

[0024] Figure 3 A schematic diagram of the rear view of the sealing ring structure in the end cover of a caster wheel for a floor scrubber;

[0025] Figure 4 A schematic diagram of the sound-absorbing layer structure in the end cover of a caster wheel for a floor scrubber;

[0026] Figure 5 This is a schematic diagram of the dustproof curtain installation structure in the end cover of a floor scrubber's caster wheel.

[0027] In the figure: end cap body 100, edge 110, sealing ring groove 120, dustproof curtain 130, sealing ring 200, dustproof lip 220, sound-absorbing layer 300, honeycomb hole 310, butyl rubber damping coating 320, wear-resistant layer 400. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] Example 1: As Figures 1-5 ,include:

[0030] The end cap body 100 is configured as an inverted U-shape, and the edge of the end cap body 100 is bent inward to form a stepped flange 110, which is used to fit and position with the universal wheel frame.

[0031] Sealing assembly: includes a sealing ring 200 and a dust lip 220. The sealing ring 200 is fixedly installed on the inner wall of the retaining edge 110, and the dust lip 220 is connected to the outer wall of the retaining edge 110.

[0032] The noise reduction assembly includes a noise reduction layer 300, which is fixedly installed on the inner wall of the end cap body 100.

[0033] The specific application scenario of this embodiment is as follows: The end cap body 100 has an inverted U-shaped structure, and its stepped edge 110 fits against the caster wheel frame, achieving initial positioning of the end cap and the wheel frame. In the sealing assembly, the sealing ring 200 on the inner wall of the edge 110 enhances the sealing between the end cap and the wheel frame, preventing sewage and dust from entering through gaps; the dustproof lip 220 on the outer side of the edge 110 further prevents impurities from entering the rotating parts of the caster wheel. The sound-absorbing layer 300 of the noise-absorbing assembly is fixed to the inner wall of the end cap body 100, absorbing the noise generated by vibration when the caster wheel rotates. The whole assembly achieves basic sealing, dustproofing, and noise reduction functions through structural cooperation, suitable for conventional floor cleaning scenarios.

[0034] Example 2: Figure 1 and Figure 2 The end cap body 100 is injection molded from high-strength ABS engineering plastic. The diameter of the end cap body 100 is adapted to the universal wheel frame. The height of the flange 110 is 5-8mm, which is used to fit and position with the universal wheel frame. The end cap body 100 is detachably and fixedly connected to the outer wall of the universal wheel frame by a buckle.

[0035] The specific application scenario of this embodiment is as follows: The end cap body 100 is injection molded from high-strength ABS engineering plastic, possessing sufficient structural strength to adapt to the working environment of the floor scrubber. Its diameter is compatible with the universal wheel frame, and the 5-8mm high flange 110 fits tightly with the wheel frame to ensure accurate positioning. The end cap body 100 is detachably connected to the outer wall of the wheel frame via snap-fit, ensuring stable installation while facilitating later disassembly, maintenance, or replacement.

[0036] Example 3: Figure 2 and Figure 3 The sealing ring 200 is made of nitrile rubber and has a trapezoidal cross-section. The inner wall of the flange 110 has a sealing ring groove 120. The diameter of the sealing ring 200 is larger than the diameter of the sealing ring groove 120 to ensure that the sealing ring 200 is in close contact with the caster wheel frame. The dustproof lip 220 is an integrally formed protrusion on the inner wall of the flange 110. The dustproof lip 220 is made of polyurethane and has a height of 3-5mm. It is inclined towards the center of the end cover and makes elastic contact with the outer wall of the caster wheel shaft. The dustproof curtain 130 is fixedly installed on the bottom outer wall of the end cover body 100. The dustproof curtain 130 is made of rubber.

[0037] The specific application scenario of this embodiment is as follows: The sealing ring groove 120 on the inner wall of the flange 110 is used to install a nitrile rubber sealing ring 200. Because the diameter of the sealing ring 200 is larger than that of the sealing ring groove 120, after installation, the sealing ring is in close contact with the caster wheel frame, forming an effective seal and preventing sewage from seeping in. The polyurethane dustproof lip 220 has a height of 3-5mm, is inclined towards the center and elastically contacts the outer wall of the caster wheel shaft, further preventing dust from entering the shaft gap. The rubber dustproof curtain 130 at the bottom of the end cap body 100 conforms to the ground as the caster wheel rotates, preventing sewage and debris from splashing into the wheel body, making it suitable for humid and dusty cleaning environments.

[0038] Example 4: Figure 5 The end cap body 100 is coated with a wear-resistant layer 400. The wear-resistant layer 400 is made of tungsten carbide coating. The thickness of the wear-resistant layer 400 is 0.1-0.3mm and the surface finish Ra≤0.8μm. It is used to enhance the wear resistance and impact resistance of the end cap. The sound-absorbing layer 300 has honeycomb holes 310 uniformly opened inside. The sound-absorbing layer 300 is made of EPDM rubber. The surface of the sound-absorbing layer 300 is coated with a butyl rubber damping coating 320.

[0039] The specific application scenario of this embodiment is as follows: The tungsten carbide wear-resistant layer 400 on the outer surface of the end cap body 100 has a thickness of 0.1-0.3mm and a surface finish Ra≤0.8μm, which enhances the wear resistance and impact resistance of the end cap and reduces wear when in contact with the ground or obstacles. The sound-absorbing layer 300 is made of EPDM rubber, and the uniform honeycomb holes 310 inside absorb noise through air damping. The butyl rubber damping coating 320 on the surface further weakens vibration transmission and improves the sound absorption effect. It is suitable for scenarios with strict noise control and high ground friction.

[0040] The working principle of this utility model is as follows: When used by those skilled in the art, the inverted U-shaped end cap body 100 made of high-strength ABS engineering plastic is used as the base. The stepped edge 110 of the end cap body 100 fits into the universal wheel frame to achieve precise positioning and is detachably fixed by a buckle. A nitrile rubber sealing ring 200 is installed in the sealing ring groove 120 on the inner wall of the edge 110. The design of its diameter being larger than the sealing ring groove 120 makes it in close contact with the wheel frame to form a seal. The polyurethane dustproof lip 220 on the outer side of the edge 110 is inclined towards the center and makes elastic contact with the rotating shaft. Together with the rubber dustproof curtain 130 at the bottom of the end cap body 100, it prevents sewage and dust from entering. The EPDM rubber sound-absorbing layer 300 on the inner wall of the end cap body 100 absorbs vibration noise through the internal honeycomb holes 310 and the surface butyl rubber damping coating 320. The tungsten carbide wear-resistant layer 400 on the outer surface enhances wear resistance and impact resistance. The various components work together to achieve sealing and dustproofing, noise reduction and stable operation of the universal wheel.

[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A universal wheel end cap for a floor cleaning machine, characterized by, include: End cap body (100), the end cap body (100) is configured as an inverted U-shape, the edge of the end cap body (100) is bent inward to form a stepped flange (110), the flange (110) is used to fit and position with the universal wheel frame; Sealing assembly: includes a sealing ring (200) and a dust lip (220), wherein the sealing ring (200) is fixedly installed on the inner wall of the retaining edge (110), and the dust lip (220) is connected to the outer wall of the retaining edge (110); The noise reduction assembly includes a noise reduction layer (300) which is fixedly installed on the inner wall of the end cap body (100).

2. The end cap for a universal wheel of a scrubber dryer according to claim 1, wherein The end cap body (100) is injection molded from high-strength ABS engineering plastic. The diameter of the end cap body (100) is adapted to the universal wheel frame. The height of the flange (110) is 5-8mm, which is used to fit and position with the universal wheel frame. The end cap body (100) is detachably and fixedly connected to the outer wall of the universal wheel frame by a buckle.

3. The end cap for a universal wheel of a scrubber dryer according to claim 1, wherein The sealing ring (200) is made of nitrile rubber and has a trapezoidal cross-section. The inner wall of the retaining edge (110) is provided with a sealing ring groove (120).

4. The end cap for a universal wheel of a scrubber dryer according to claim 3, wherein The diameter of the sealing ring (200) is larger than the diameter of the sealing ring groove (120) to ensure that the sealing ring (200) is in close contact with the caster wheel frame.

5. The end cap for a universal wheel of a scrubber dryer according to claim 4, wherein The dustproof lip (220) is an integrally formed protrusion on the inner wall of the flange (110). The dustproof lip (220) is made of polyurethane material. The height of the dustproof lip 220 is 3-5mm, inclined towards the center of the end cover, and elastically contacts the outer wall of the universal wheel shaft.

6. The end cap for a caster wheel of a scrubber as claimed in claim 5, wherein A dustproof curtain (130) is fixedly installed on the bottom outer wall of the end cap body (100), and the dustproof curtain (130) is made of rubber.

7. The end cap for a universal wheel of a scrubber dryer according to claim 1, wherein The outer surface of the end cap body (100) is coated with a wear-resistant layer (400), which is a tungsten carbide coating. The wear-resistant layer (400) has a coating thickness of 0.1-0.3 mm and a surface finish Ra≤0.8 μm, which is used to enhance the wear resistance and impact resistance of the end cap.

8. The end cap for a universal wheel of a scrubber dryer according to claim 7, wherein The sound-absorbing layer (300) has uniformly formed honeycomb holes (310) inside. The sound-absorbing layer (300) is made of EPDM rubber, and the surface of the sound-absorbing layer (300) is coated with a butyl rubber damping coating (320).

Images