Inflation tube device

Abstract

The present invention provides an inflation tube device that can be stably connected between an air inflator and a dual-wheel tire and is wear-resistant. [Solution] The inflation tube device of the present invention is adapted to be connected between an air inflator and a dual-wheel tire, the dual-wheel tire including an outer ring and an inner ring, the outer ring including an air nozzle facing the inner ring. The inflation tube device includes a flexible tube body, a first joint, a second joint and a cylindrical spring. The flexible tube body includes opposing first tube body ends and second tube body ends. The first joint is connected to the first tube body end and adapted to be screwed onto the air inflator. The second joint is connected to the second tube body end, the second joint extends from the space between the outer ring and the inner ring and adapted to be screwed onto the air nozzle. The cylindrical spring is positioned to cover the flexible tube body.

Description

[[Technical Field]]

[0001] The present invention relates to an inflation tube device, and in particular, to an inflation tube device adapted to be connected between an air inflator and a dual-wheel tire. [[Background Art]]

[0002] A dual-wheel tire comprises an outer wheel, an inner wheel, and a wheel rim located between the outer wheel and the inner wheel. The outer wheel includes an air nozzle facing the rim and the inner wheel. Due to the orientation of the air nozzle, when inflating the dual-wheel tire, it is necessary to first pass through the hollow portion of the rim from the outside of the outer wheel, fold back, and then arrange the inflation member so that it covers the air nozzle.

[0003] Since the inflation hose needs to be folded back 180 degrees in the extremely narrow space of the hollow portion of the rim before being connected to the air nozzle, the inflation hose is bent at a large angle, which is prone to dents and deformation at the bent portion, and may even be damaged. In addition, due to high-frequency vibration generated during inflation work, friction occurs between the surface of the inflation hose and the rim, which not only easily causes wear and damage to the hose surface, but also may expose operators to safety risks during high-pressure inflation operations. [[Summary of the Invention]] [[Problem to be Solved by the Invention]]

[0004] Provided is an inflation tube device that can be stably connected between an air inflator and a dual-wheel tire and has wear resistance. [[Means for Solving the Problem]]

[0005] The inflation tube device of the present invention is adapted to be connected between an air inflator and a dual-wheel tire, the dual-wheel tire including an outer ring and an inner ring, the outer ring including an air nozzle facing the inner ring. The inflation tube device includes a flexible tube body, a first joint, a second joint, and a cylindrical spring. The flexible tube body includes opposing first and second tube body ends. The first joint is connected to the first tube body end and adapted to be screwed onto the air inflator. The second joint is connected to the second tube body end, the second joint extends from the space between the outer and inner rings and adapted to be screwed onto the air nozzle. The cylindrical spring is positioned to cover the flexible tube body.

[0006] In one embodiment of the present invention, the first joint includes a joint body, an air core, and a first tube bundle, the joint body includes opposing first and second ends, the air core is screwed into the joint body near the first end, the second end extends into the end of the first tube body, and the first tube bundle is positioned to cover the end of the first tube body, and the first joint is fixed to the flexible tube body by pressing the end of the first tube body.

[0007] In one embodiment of the present invention, the inner diameter of the cylindrical spring is larger than the outer diameter of the flexible tube body, and the inner diameter of the cylindrical spring is less than or equal to the outer diameter of the first tube bundle.

[0008] In one embodiment of the present invention, the cylindrical spring includes a first spring end that presses against the first tube bundle.

[0009] In one embodiment of the present invention, the first end includes a male thread adapted to be screwed onto an air inflator.

[0010] In one embodiment of the present invention, the second joint includes an inner joint tube, an airtight ring, an outer joint sleeve, and a second tube bundle. The inner joint tube includes opposing third and fourth ends, the airtight ring is positioned to cover the fourth end, and the outer joint sleeve covers the airtight ring and a portion of the inner joint tube, leaving the third end exposed. The third end extends into the end of the second tube body, and the second tube bundle is positioned to cover the end of the second tube body, fixing the second joint to the flexible tube body by pressing against the end of the second tube body.

[0011] In one embodiment of the present invention, the inner diameter of the cylindrical spring is larger than the outer diameter of the flexible tube body, and the inner diameter of the cylindrical spring is less than or equal to the outer diameter of the second tube bundle.

[0012] In one embodiment of the present invention, the cylindrical spring includes a second spring end that presses against the second tube bundle.

[0013] In one embodiment of the present invention, the joint outer sleeve includes a female thread near the fourth end that is adapted to be screwed onto the air nozzle of a dual-wheel tire.

[0014] The dual-wheel tire inflation module of the present invention includes a dual-wheel tire, an air inflator, and the inflation tube device described above. The dual-wheel tire includes an outer ring and an inner ring, the outer ring including an air nozzle facing the inner ring. A first joint is connected to the air inflator, and a second joint extends from the space between the outer ring and the inner ring and is screwed onto the air nozzle of the dual-wheel tire. [Effects of the Invention]

[0015] Based on the above, the first joint of the inflation tube device of the present invention is connected to the first end of the flexible tube body and is fitted to be screwed onto the air inflator. The second joint is connected to the second end of the flexible tube body and is screwed onto the air nozzle. Since both the first and second joints of the inflation tube device can be connected to the air inflator and air nozzle by screwing, there is no need to hold it by hand, making operation more convenient and allowing for a more stable connection between the air inflator and the dual wheel tire. Furthermore, the second joint of the inflation tube device of the present invention is fitted to extend into the air nozzle from the space between the outer and inner rings, and can be connected to the air nozzle without bending, making operation easier, eliminating the need to bend the flexible tube body at a large angle, and improving the durability of the flexible tube body. In addition, the cylindrical spring of the inflation tube device of the present invention is positioned to fit over the flexible tube body. Due to the frame effect of the cylindrical spring, the flexible tube body does not bend excessively, and because the flexible tube body is isolated from the hollow part of the rim, friction and damage are avoided, and the inflation tube device has wear resistance. [Brief explanation of the drawing]

[0016] [Figure 1] This is a schematic diagram of a dual-wheel tire inflation module in one embodiment of the present invention. [Figure 2] This is a close-up view of a specific area shown in Figure 1. [Figure 3] This is a schematic diagram of Figure 1 from a different angle. [Figure 4] Figure 1 is an exploded view. [Figure 5] Figure 1 is a schematic diagram of the inflation tube device of the dual-wheel tire inflation module. [Figure 6] Figure 5 is an exploded view. [Figure 7] Figure 5 is a schematic cross-sectional view of the first joint location. [Figure 8] It is a schematic cross-sectional view of the second joint site in Fig. 5 MODE FOR CARRYING OUT THE INVENTION

[0017] Fig. 1 is a schematic view of a dual-wheel tire inflation module according to an embodiment of the present invention. Fig. 2 is a partial enlarged view of Fig. 1. Fig. 3 is a schematic view of Fig. 1 from another angle. Fig. 4 is an exploded view of Fig. 1.

[0018] Referring to Figs. 1 to 4, the dual-wheel tire inflation module 5 in the present embodiment comprises a dual-wheel tire 20, an air inflator 10 and an inflation tube device 100. The dual-wheel tire 20 comprises an outer wheel 22, an inner wheel 25 and a rim 26 positioned between the outer wheel 22 and the inner wheel 25. The outer wheel 22 comprises an air nozzle 23 facing the hollow portion 27 of the inner wheel 25 and the rim 26.

[0019] The inflation tube device 100 is connected between the air inflator 10 and the dual-wheel tire 20. Specifically, the inflation tube device 100 extends into the space between the outer wheel 22 and the inner wheel 25 and is connected to the air nozzle 23.

[0020] In the present embodiment, due to the connection method between the inflation tube device 100 and the air nozzle 23, the inflation tube device 100 can be connected to the air nozzle 23 without being bent, so the operation is simpler, there is no need to bend the inflation tube device 100 at a large angle, and friction and damage with the hollow portion 27 of the rim 26 do not occur, thereby improving the durability of the inflation tube device 100.

[0021] Hereinafter, the inflation tube device 100 will be described in detail.

[0022] Figure 5 is a schematic diagram of the inflation tube device of the dual-wheel tire inflation module shown in Figure 1. Figure 6 is an exploded view of Figure 5. Figure 7 is a schematic cross-sectional view of the first joint location in Figure 5. Figure 8 is a schematic cross-sectional view of the second joint location in Figure 5.

[0023] Referring to Figures 5 to 8, the inflation tube device 100 in this embodiment includes a flexible tube body 110, a first joint 120, a second joint 130, and a cylindrical spring 140. As shown in Figure 6, the flexible tube body 110 includes opposing first tube body ends 112 and second tube body ends 114. In this embodiment, the length of the flexible tube body 110 can be made relatively long, so it is not necessary to bring the air inflator 10 very close to the dual wheel tire 20, improving convenience during inflation.

[0024] The first joint 120 is connected to the end 112 of the first tube body and is fitted to be screwed onto the air inflator 10. Specifically, as shown in Figures 6 and 7, in this embodiment the first joint 120 includes a joint body 121, an air core 125, and a first tube bundle 126.

[0025] The joint body 121 includes opposing first end 122 and second end 124. In this embodiment, the first end 122 of the first joint 120 includes a male thread 123 that is adapted to be screwed onto the air inflator 10. The air core 125 is screwed into the joint body 121 near the first end 122. The second end 124 extends into the first tube body end 112. The first tube bundle 126 is positioned to cover the first tube body end 112 and fixes the first joint 120 to the flexible tube body 110 by pressing against the first tube body end 112.

[0026] The second joint 130 is connected to the end 114 of the second tube body, and the second joint 130 is fitted to screw onto the air nozzle 23. Specifically, as shown in Figures 6 and 8, in this embodiment the second joint 130 includes an inner joint tube 131, an airtight ring 134, an outer joint sleeve 135, and a second tube bundle 137.

[0027] The inner joint tube 131 includes opposing third and fourth ends 132 and 133, and the airtight ring 134 is positioned to fit over the fourth end 133. In this embodiment, the outer joint sleeve 135 includes a female thread 136 near the fourth end 133 that is adapted to screw onto the air nozzle 23 of the dual wheel tire 20. The outer joint sleeve 135 covers the airtight ring 134 and a portion of the inner joint tube 131, exposing the third end 132. The third end 132 extends into the second tube body end 114. The second tube bundle 137 is positioned to fit over the second tube body end 114, and by pressing against the second tube body end 114, it secures the second joint 130 to the flexible tube body 110.

[0028] Since both the first joint 120 and the second joint 130 of the inflation tube device 100 are connected to the air inflator 10 and the air nozzle 23 by screwing, there is no need to hold it by hand, making operation more convenient and allowing for a more stable connection between the air inflator 10 and the dual wheel tire 20.

[0029] Furthermore, in this embodiment, the cylindrical spring 140 is positioned to cover the flexible tube body 110. Since the cylindrical spring 140 of the inflation tube device 100 is positioned to cover the flexible tube body 110, the inflation tube device 100 has wear resistance. The cylindrical spring 140 prevents friction and damage to the flexible tube body 110 from foreign objects, prevents the flexible tube body 110 from being excessively bent, which can cause dents or deformation to occur in the outer shape of the flexible tube body 110, and prevents the flexible tube body 110 from bursting due to pressure, being stepped on, or being bitten by an animal.

[0030] In this embodiment, the cylindrical spring 140 includes a first spring end 142 and a second spring end 144. The first spring end 142 presses against the first tube bundle 126, and the second spring end 144 presses against the second tube bundle 137.

[0031] As shown in Figures 7 and 8, the inner diameter of the cylindrical spring 140 is larger than the outer diameter of the flexible tube body 110, the inner diameter of the cylindrical spring 140 is less than or equal to the outer diameter of the first tube bundle 126, and the inner diameter of the cylindrical spring 140 is less than or equal to the outer diameter of the second tube bundle 137.

[0032] With this design, the first spring end 142 and the second spring end 144 of the cylindrical spring 140 can press against the first tube bundle 126 and the second tube bundle 137 and be fixed to the first joint 120 and the second joint 130, while the cylindrical spring 140 can slide freely on the outside of the flexible tube body 110 in areas other than the first spring end 142 and the second spring end 144.

[0033] Notably, compared to a typical metal braided protective sleeve that may compress the internal tube when bent, the cylindrical spring 140 is deformable and can freely slide on the outside of the flexible tube body 110 in areas other than the first spring end 142 and the second spring end 144. Therefore, when the cylindrical spring 140 is bent, it does not compress the flexible tube body 110, and smooth inflation can be maintained.

[0034] In summary, the first joint of the inflation tube device of the present invention is connected to the first end of the flexible tube body and is fitted to be screwed onto the air inflator. The second joint is connected to the second end of the flexible tube body and is screwed onto the air nozzle. Since both the first and second joints of the inflation tube device can be connected to the air inflator and air nozzle by screwing, there is no need to hold it by hand, making operation more convenient and allowing for a more stable connection between the air inflator and the dual wheel tire. Furthermore, the second joint of the inflation tube device of the present invention is fitted to extend into the air nozzle from the space between the outer and inner rings, and can be connected to the air nozzle without bending, making operation easier, eliminating the need to bend the flexible tube body at a large angle, and improving the durability of the flexible tube body. In addition, the cylindrical spring of the inflation tube device of the present invention is positioned to fit over the flexible tube body. Due to the frame effect of the cylindrical spring, the flexible tube body does not bend excessively, and because the flexible tube body is isolated from the hollow part of the rim, friction and damage are avoided, and the inflation tube device has wear resistance. [Industrial applicability]

[0035] The present invention can be applied to an inflation tube device adapted to be connected between an air inflator and a dual-wheel tire. [Explanation of Symbols]

[0036] 5: Dual-wheel tire inflation module 10: Air Inflator 20: Dual-wheel tires 22: Outer ring 23: Air nozzle 25: Inside 26: Rim 27: Hollow part 100: Inflation tube device 110: Flexible tube body 112: End of the first tube body 114: End of the second tube body 120: First joint 121: Joint body 122: 1st end 123: Male screw 124: 2nd end 125: Air core 126: First Tube Bundle 130: Second joint 131: Joint inner tube 132: 3rd end 133: 4th end 134: Airtight ring 135: Joint outer sleeve 136: Female thread 137: Second Tube Bundle 140: Cylindrical spring 142: First spring end 144: Second spring end

Claims

1. An inflation tube is fitted to connect between an air inflator and a dual-wheel tire, wherein the dual-wheel tire includes an outer ring and an inner ring, and the outer ring includes an air nozzle facing the inner ring, A flexible tube body including opposing first tube body ends and second tube body ends, A first joint connected to the end of the first tube body and fitted to be screwed onto the air inflator, A second joint connected to the end of the second tube body, the second joint extending from the space between the outer ring and the inner ring and fitted to be screwed onto the air nozzle, A cylindrical spring is positioned to cover the aforementioned flexible tube body, An inflation tube device, including one.

2. The first joint includes a joint body, an air core, and a first tube bundle, the joint body includes opposing first and second ends, the air core is screwed into the joint body near the first end, the second end extends into the end of the first tube body, the first tube bundle is positioned to cover the end of the first tube body, and the first joint is fixed to the flexible tube body by pressing against the end of the first tube body. The inflation tube device according to claim 1.

3. The inner diameter of the cylindrical spring is larger than the outer diameter of the flexible tube body, and the inner diameter of the cylindrical spring is less than or equal to the outer diameter of the first tube bundle. The inflation tube device according to claim 2.

4. The cylindrical spring includes a first spring end that presses against the first tube bundle. The inflation tube device according to claim 2.

5. The first end includes a male thread adapted to be screwed onto the air inflator, The inflation tube device according to claim 2.

6. The second joint includes an inner joint tube, an airtight ring, an outer joint sleeve, and a second tube bundle. The inner joint tube includes opposing third and fourth ends. The airtight ring is positioned to cover the fourth end. The outer joint sleeve covers the airtight ring and a portion of the inner joint tube, leaving the third end exposed, which extends into the end of the second tube body. The second tube bundle is positioned to cover the end of the second tube body, and the second joint is fixed to the flexible tube body by pressing against the end of the second tube body. The inflation tube device according to claim 1.

7. The inner diameter of the cylindrical spring is larger than the outer diameter of the flexible tube body, and the inner diameter of the cylindrical spring is less than or equal to the outer diameter of the second tube bundle. The inflation tube device according to claim 6.

8. The cylindrical spring includes a second spring end that presses against the second tube bundle. The inflation tube device according to claim 6.

9. The joint outer sleeve includes a female thread near the fourth end that is adapted to be screwed onto the air nozzle of the dual wheel tire. The inflation tube device according to claim 6.

10. A dual-wheel tire comprising an outer ring and an inner ring, wherein the outer ring includes an air nozzle facing the inner ring, Air inflator, An inflation tube device according to any one of claims 1 to 9, wherein the first joint is connected to the air inflator, and the second joint extends from the space between the outer ring and the inner ring and is screwed onto the air nozzle of the dual wheel tire, A dual-wheel tire inflation module, including...

Images