Universal wheel with high flexibility

Abstract

The utility model relates to the field of universal wheels, and discloses a universal wheel with strong flexibility, which comprises a support, a steering rod and a mud scraping mechanism, a stainless steel shaft pin is arranged in a hole at the upper end of the support in a threaded manner, shaft sleeves are arranged on two sides of the stainless steel shaft pin, wheel cores are sleeved on the outer sides of the two shaft sleeves, rubber coatings are sleeved at the outer ends of the two wheel cores, and the rubber coatings are arranged on the support. The mud scraping mechanism comprises a fixed box, a mounting column and a movable frame, the outer end of the mounting column is fixedly sleeved with a mounting plate, mud scraping plates are hinged to the two sides of the lower end of the mounting plate, fixed blocks are fixedly arranged at the positions, close to the front ends of the two sides, of the lower end of the mounting plate, and first springs are fixedly arranged at the lower ends of the fixed blocks; a second spring is arranged at the inner end of the movable frame, and a limiting ring is fixedly arranged at the upper end of the second spring. According to the wheel, due to the supporting effect of the first spring, the mud scraping plate can make contact with the rubber coating all the time, the mud scraping plate can scrape off mud outside the rubber coating, and it is guaranteed that the wheel is kept clean in the using process.

Description

TECHNICAL FIELD

[0001] The utility model relates to a universal wheel field especially relates to a strong flexibility's universal wheel. BACKGROUND

[0002] A universal wheel is a kind of wheel, usually by two or more wheels are formed, can be freely moved in multiple directions. This design makes the object more flexible and convenient when moving. Universal wheel is usually used in mobile equipment, such as luggage, shopping cart, office chair and medical equipment etc. Universal wheel can move in different directions, users can more easily turn and change the direction of movement, without substantially adjusting the position of the whole object.

[0003] The inventor found that the prior art has the following problems in the process of realizing the present application: the conventional universal wheel is easy to accumulate soil and dirt on the ground during movement, which affects the rotation and flexibility of the wheel. Users need to manually remove the soil adhered to the surface of the wheel after use, which increases the workload and time cost of maintenance.

[0004] Therefore, the skilled person in the art provides a strong flexibility's universal wheel to solve the problems raised in the background art. SUMMARY

[0005] The utility model aims at solving the shortcomings in the prior art and provides a strong flexibility's universal wheel. In the process of moving, the mud scraping plate can automatically remove the soil on the rubber coating surface.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A strong flexibility's universal wheel, including support, steering rod and mud scraping mechanism, the lower side of the support is provided with a key pin, the upper end hole of the support is provided with a stainless steel shaft pin with a thread, the both sides of the stainless steel shaft pin are provided with a shaft sleeve, the both sides of the shaft sleeve are provided with a wheel core, the both sides of the wheel core are provided with a rubber coating, and the opposite side of the wheel core is provided with a wheel cover.

[0008] The mud scraping mechanism includes a fixed box, a mounting column and a movable frame, the mounting column is provided with a nut with a thread on one side, the mounting column is provided with a mounting plate with a fixed sleeve on the outer end, the mounting plate is provided with a mud scraping plate with a hinged connection on the both sides of the lower end, the mounting plate is provided with a fixed block with a fixed connection on the both sides of the lower end, the fixed block is provided with a first spring with a fixed connection on the lower end, the movable frame is provided with a second spring with a fixed connection on the inner end, and the second spring is provided with a limiting ring with a fixed connection on the upper end.

[0009] Further, the steering rod is rotatably arranged on the upper end of the support, and the two wheel cores are rotatably arranged on the both sides of the support.

[0010] Further, the fixing box is fixedly arranged on the upper end of the steering rod, and the mounting column is movably arranged at the front end of the inner side of the fixing box.

[0011] Further, the mounting plate is movably arranged at the front end of the inner side of the fixing box, and the nut is in contact with one side of the fixing box.

[0012] Further, the two mud scraping plates are respectively in contact with the two rubber coatings, and the lower end of the first spring is fixedly connected with the upper end of the mud scraping plate.

[0013] Further, the limiting ring is threadedly arranged on the side, away from the nut, of the mounting column, and the movable frame is movably arranged on the outer end of the mounting column.

[0014] Further, the movable frame is movably arranged on the other side of the fixing box, and the limiting ring is movably arranged on the inner end of the movable frame.

[0015] The utility model has the advantages of the following:

[0016] 1. The utility model discloses a universal wheel with high flexibility, wherein the stainless steel shaft pin is in a buried mode and is integrally formed with the support, the support is used for supporting the whole wheel and is internally provided with a bearing, after the two shaft sleeves are placed in the support, the wheel core is installed outside the shaft sleeve, the design of the rubber coating can effectively reduce the vibration, thereby improving the use comfort of the wheel, the buckle type wheel cover can fix the wheel core and the support, and the stability of the wheel is ensured, the design of the steering rod enables the whole wheel to rotate in any direction during the driving process, the rubber coating not only provides good adhesion, but also effectively reduces the vibration generated during the driving process, thereby further protecting the wheel core and the support and prolonging the service life.

[0017] 2. The utility model discloses a universal wheel with high flexibility, wherein the universal wheel is easy to adhere to the mud during the movement, but the position of the mounting plate can be adjusted by unscrewing the nut, when the movable frame is placed in the square groove close to the fixing box, the mud scraping plate is always in contact with the rubber coating due to the supporting action of the first spring, thereby effectively scraping the mud outside the rubber coating, when the movable frame is taken out from the square groove, the mud scraping plate stops contacting the rubber coating, the mud outside the rubber coating is scraped by the mud scraping plate, and the wheel can be kept clean during the use, thereby avoiding the influence of the mud on the rotation and performance of the universal wheel. DRAWINGS

[0018] Figure 1 It is a whole front shaft measurement schematic view of the utility model;

[0019] Figure 2 It is a whole bottom shaft measurement schematic view of the utility model;

[0020] Figure 3 It is a shaft measurement schematic view of the wheel core, the support and the steering rod of the utility model;

[0021] Figure 4 It is the axial view schematic drawing of the wheel cover, the rubber coating, the wheel core and the support of the utility model;

[0022] Figure 5 It is the explosion axial view schematic drawing of the utility model;

[0023] Figure 6 It is the axial view schematic drawing of the steering lever and the mud scraping mechanism of the utility model;

[0024] Figure 7 It is the section schematic drawing of the steering lever, the mounting column and the mounting plate of the utility model;

[0025] Figure 8 It is the section schematic drawing of the fixing box, the mounting column and the mounting plate of the utility model;

[0026] Figure 9 It is the axial view schematic drawing of the mounting plate, the mud scraping plate, the No.1 spring and the movable frame of the utility model.

[0027] Legend:

[0028] 1, wheel cover;2, rubber coating;3, wheel core;4, shaft sleeve;5, support;6, stainless steel shaft pin;7, flat key pin;8, steering lever;9, mud scraping mechanism;901, fixing box;902, mounting column;903, mounting plate;904, mud scraping plate;905, fixed block;906, No.1 spring;907, nut;908, movable frame;909, limiting ring;910, No.2 spring. Specific implementation

[0029] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] With reference to Figures 1-6 , the utility model provides an embodiment:

[0031] A flexible universal wheel, including support 5, steering lever 8 and mud scraping mechanism 9, support 5 lower side is provided with flat key pin 7, support 5 upper end hole is provided with stainless steel shaft pin 6 with thread, stainless steel shaft pin 6 both sides are provided with shaft sleeve 4, two shaft sleeves 4 outside are all set with wheel core 3, two wheel cores 3 outer ends are all set with rubber coating 2, two wheel cores 3 opposite sides are clamped and are provided with wheel cover 1, steering lever 8 is rotationally arranged on the upper end of support 5, and two wheel cores 3 are rotationally arranged on the both sides of support 5.

[0032] Specifically, the stainless steel shaft pin 6 is embedded and formed integrally with the support 5, the support 5 is used to support the whole wheel and has a bearing inside, the wheel core 3 is installed outside the shaft sleeve 4 after the shaft sleeve 4 is placed inside the support 5, the design of the rubber coating 2 can effectively reduce vibration, thereby improving the use comfort of the wheel, the wheel cover 1 adopts a buckle type, which can fix the wheel core 3 and the support 5, and ensure the stability of the wheel, the design of the steering rod 8 enables the whole wheel to rotate in any direction during driving, the rubber coating 2 not only provides good grip, but also effectively reduces the vibration generated during driving, further protects the wheel core 3 and the support 5, thereby prolonging the service life.

[0033] Referring to Figures 7-9 , the mud scraping mechanism 9 comprises a fixed box 901, a mounting column 902 and a movable frame 908, the mounting column 902 is threadedly sleeved with a nut 907 on one side, the mounting column 902 is fixedly sleeved with a mounting plate 903 at the outer end, the mounting plate 903 is hingedly provided with mud plates 904 at the lower ends on both sides, the mounting plate 903 is fixedly provided with fixed blocks 905 at the lower ends on both sides, the fixed blocks 905 are fixedly provided with a first spring 906 at the lower ends, the movable frame 908 is provided with a second spring 910 at the inner end, the second spring 910 is fixedly provided with a limiting ring 909 at the upper end, the fixed box 901 is fixedly sleeved on the upper end of the steering rod 8, the mounting column 902 is movably arranged at the front inner side of the fixed box 901, the mounting plate 903 is movably arranged at the front inner side of the fixed box 901, the nut 907 is in contact with one side of the fixed box 901, the two mud plates 904 are respectively in contact with the two rubber coatings 2, the first spring 906 is fixedly connected with the mud plates 904 at the upper ends, the limiting ring 909 is threadedly sleeved on the side of the mounting column 902 away from the nut 907, the movable frame 908 is movably sleeved on the outer end of the mounting column 902, the movable frame 908 is movably arranged at the other side of the fixed box 901, and the limiting ring 909 is movably arranged at the inner end of the movable frame 908.

[0034] Specifically, the universal wheel is prone to adhere to mud during movement, but the position of the mounting plate 903 can be adjusted by unscrewing the nut 907, when the movable frame 908 is placed in the square groove close to the fixed box 901, the mud plates 904 will always be in contact with the rubber coatings 2 due to the supporting action of the first spring 906, thereby effectively scraping off the mud outside the rubber coatings 2, when the movable frame 908 is taken out of the square groove, the mud plates 904 will stop contacting the rubber coatings 2, and the mud outside the rubber coatings 2 is scraped off by the mud plates 904, which can ensure that the wheel remains clean during use and avoid the influence of mud on the rotation and performance of the universal wheel.

[0035] Working principle: the stainless steel shaft pin 6 is embedded and integrated with the support 5, the support 5 is used not only to support the whole wheel, but also has a bearing inside, after the two shaft sleeves 4 are placed in the support 5, the wheel core 3 is installed outside the shaft sleeve 4, the design of the rubber coating 2 can effectively reduce the shock, thereby improving the use comfort of the wheel, the buckle type wheel cover 1 can fix the wheel core 3 and the support 5, ensuring the stability of the wheel, the design of the steering rod 8 makes the whole wheel can rotate in any direction during driving;

[0036] Secondly, the universal wheel is easy to stick to the mud during movement, but the position of the mounting plate 903 can be adjusted by unscrewing the screw cap 907, when the movable frame 908 is put into the square groove close to the fixed box 901, the mud scraping plate 904 will always contact with the rubber coating 2 due to the supporting effect of the first spring 906, thereby effectively scraping the mud outside the rubber coating 2, when the movable frame 908 is taken out from the square groove, the mud scraping plate 904 will stop contacting with the rubber coating 2.

[0037] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A flexible universal wheel comprising a support (5), a steering lever (8) and a mud scraping mechanism (9), characterized in that: The support (5) is provided with a key pin (7) on the lower side, a stainless steel shaft pin (6) is provided in the upper end hole of the support (5) with a thread, the both sides of the stainless steel shaft pin (6) are provided with a shaft sleeve (4), the both outer sides of the two shaft sleeves (4) are provided with a wheel core (3), the both outer ends of the two wheel cores (3) are provided with a rubber coating (2), and the opposite side of the two wheel cores (3) is provided with a wheel cover (1) through clamping. The mud scraping mechanism (9) comprises a fixed box (901), a mounting column (902) and a movable frame (908), the mounting column (902) is provided with a nut (907) on one side through thread sleeving, the mounting column (902) is provided with a mounting plate (903) on the outer end through fixed sleeving, the mounting plate (903) is provided with a mud scraping plate (904) on the lower end on both sides through hinging, the mounting plate (903) is provided with a fixed block (905) on the lower end on both sides in front through fixed arrangement, the fixed block (905) is provided with a first spring (906) on the lower end through fixed arrangement, the movable frame (908) is provided with a second spring (910) on the inner end, and the second spring (910) is provided with a limiting ring (909) on the upper end through fixed arrangement.

2. The flexible universal wheel according to claim 1, wherein: The steering rod (8) is rotationally arranged on the upper end of the support (5), and the two wheel cores (3) are rotationally arranged on the both sides of the support (5).

3. The flexible universal wheel of claim 1, wherein: The fixed box (901) is fixedly sleeved on the upper end of the steering rod (8), and the mounting column (902) is movably arranged on the inner side of the fixed box (901) in front.

4. The flexible universal wheel of claim 1, wherein: The mounting plate (903) is movably arranged on the inner side of the fixed box (901) in front, and the nut (907) is in contact with one side of the fixed box (901).

5. The flexible universal wheel of claim 1, wherein: The two mud scraping plates (904) are respectively in contact with the two rubber coatings (2), and the lower end of the first spring (906) is fixedly connected with the upper end of the mud scraping plate (904).

6. The flexible universal wheel of claim 1, wherein: The limiting ring (909) is threadedly sleeved on the side of the mounting column (902) away from the nut (907), and the movable frame (908) is movably sleeved on the outer end of the mounting column (902).

7. The flexible universal wheel of claim 1, wherein: The movable frame (908) is movably arranged on the other side of the fixed box (901), and the limiting ring (909) is movably arranged on the inner end of the movable frame (908).

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