Inflation tube device

Abstract

To provide an inflation tube device that can be stably connected between an air inflator and a dual wheel tire and has wear resistance. [Solution] The inflation tube device is adapted to be connected between an air inflator and a dual-wheel tire, the dual-wheel tire including an outer and inner ring, the outer ring including an air nozzle facing the inner ring. The inflation tube device includes a flexible tube body (110), a first joint (120), a second joint (130), and a cylindrical spring (140). The flexible tube body includes opposing first and second tube body ends (112, 114). The first joint is connected to the first tube body end and adapted to be threadedly connected to the air inflator. The second joint is connected to the second tube body end, and the second joint extends from the space between the outer and inner rings and is adapted to be threadedly connected to the air nozzle. The cylindrical spring is disposed over the flexible tube body and is fixed to the first and second tube body ends, surrounding a portion of the first and second joints.

Description

[Technical Field]

[0001] The present invention relates to an inflation tube apparatus, and more particularly to an inflation tube apparatus adapted to be connected between an air inflator and a dual wheel tire. [Background technology]

[0002] A dual-wheel tire has an outer wheel, an inner wheel, and a wheel rim located between the outer and inner wheels. The outer wheel contains an air nozzle facing the rim and the inner wheel. Due to the orientation of the air nozzle, when inflating a dual-wheel tire, the air must first be passed through the hollow part of the rim from the outside of the outer wheel, then folded back and placed over the air nozzle.

[0003] Because the inflation hose must be bent 180 degrees within the extremely narrow space of the rim's hollow before connecting to the air nozzle, the inflation hose is bent at a large angle, making it prone to dents, deformation, and even breakage at the bent section.In addition, high-frequency vibrations generated during inflation work cause friction between the inflation hose surface and the rim, making the hose surface prone to wear and damage, and potentially exposing workers to safety risks during high-pressure inflation work. Summary of the Invention [Problem to be solved by the invention]

[0004] To provide 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 and inner wheel, the outer wheel including an air nozzle facing the inner wheel. 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 threadedly connected to the air inflator. The second joint is connected to the second tube body end, and the second joint extends from the space between the outer and inner wheels and is adapted to be threadedly connected to the air nozzle. The cylindrical spring is disposed over the flexible tube body and is fixed to the first and second tube body ends, surrounding a portion of the first joint and a portion of the second joint.

[0006] In one embodiment of the present invention, the first joint includes a joint body, a hollow core, and a first tube bundle. The joint body has opposing first and second ends. The hollow core is threaded into the joint body near the first end, and 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 the end of the first tube body.

[0007] In one embodiment of the present invention, the inner diameter of the cylindrical spring is greater than the outer diameter of the flexible tube body, and the inner diameter of the cylindrical spring is equal to or smaller than 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 an external thread adapted to be threadably coupled to an air inflator.

[0010] In one embodiment of the present invention, the second joint includes a joint inner tube, a sealing ring, a joint outer sleeve, and a second tube bundle. The joint inner tube has opposing third and fourth ends, the sealing ring is positioned to cover the fourth end, and the joint outer sleeve covers the sealing ring and a portion of the joint inner tube and exposes the third end. 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 and presses against the second tube body to fix the second joint to the flexible tube body.

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

[0013] In one embodiment of the invention, the joint outer sleeve includes an internal thread near the fourth end adapted to be threadedly engaged with an 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 above-mentioned inflation tube device. The dual-wheel tire includes an outer wheel and an inner wheel, and the outer wheel includes an air nozzle facing the inner wheel. The first joint is connected to the air inflator, and the second joint extends from the space between the outer wheel and the inner wheel 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 adapted to be threadedly connected to the air inflator. The second joint is connected to the second end of the flexible tube body and is adapted to be threadedly connected to the air nozzle. Both the first and second joints of the inflation tube device can be connected to the air inflator and the air nozzle by threading, eliminating the need for manual fixing, making operation more convenient and providing 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 adapted to extend into the air nozzle from the space between the outer and inner rings, allowing it to be connected to the air nozzle without bending, making operation easier and eliminating the need to bend the flexible tube body at a large angle, thereby improving the durability of the flexible tube body. Furthermore, the cylindrical spring of the inflation tube device of the present invention is positioned to cover the flexible tube body. The frame effect of the cylindrical spring prevents the flexible tube body from bending excessively, and the flexible tube body is isolated from the hollow part of the rim, which avoids friction and damage, making the inflation tube device wear-resistant. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a schematic diagram of a dual wheel tire inflation module according to one embodiment of the present invention; [Figure 2] FIG. 2 is an enlarged view of a portion of FIG. [Figure 3] FIG. 2 is a schematic view of FIG. 1 from another angle. [Figure 4] FIG. 2 is an exploded view of FIG. 1. [Figure 5] 2 is a schematic diagram of an inflation tube apparatus of the dual wheel tire inflation module of FIG. 1. FIG. [Figure 6] FIG. 6 is an exploded view of FIG. 5. [Figure 7] FIG. 6 is a cross-sectional schematic view of the first joint location in FIG. 5. [Figure 8] FIG. 6 is a cross-sectional schematic view of the second joint location in FIG. 5. DETAILED DESCRIPTION OF THE INVENTION

[0017] Figure 1 is a schematic diagram of a dual-wheel tire inflation module according to one embodiment of the present invention, Figure 2 is a partially enlarged view of Figure 1, Figure 3 is a schematic view of Figure 1 from another angle, and Figure 4 is an exploded view of Figure 1.

[0018] 1 to 4, the dual wheel tire inflation module 5 of this embodiment includes a dual wheel tire 20, an air inflator 10, and an inflation tube device 100. The dual wheel tire 20 includes an outer ring 22, an inner ring 25, and a rim 26 located between the outer ring 22 and the inner ring 25. The outer ring 22 includes an air nozzle 23 facing the inner ring 25 and a hollow portion 27 of the rim 26.

[0019] The inflation tube device 100 is connected between the air inflator 10 and the dual wheel tire 20. In particular, the inflation tube device 100 extends from the space between the outer ring 22 and the inner ring 25 and connects to the air nozzle 23.

[0020] In this embodiment, the connection method between the inflation tube device 100 and the air nozzle 23 allows the inflation tube device 100 to be connected to the air nozzle 23 without bending it, making the operation easier, eliminating the need to bend the inflation tube device 100 at a large angle, and preventing friction or damage with the hollow portion 27 of the rim 26, thereby improving the durability of the inflation tube device 100.

[0021] The inflation tube device 100 will now be described in detail.

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

[0023] 5 to 8, the inflation tube device 100 of this embodiment includes a flexible tube body 110, a first joint 120, a second joint 130, and a cylindrical spring 140. As shown in Fig. 6, the flexible tube body 110 includes opposing first and second tube body ends 112 and 114. In this embodiment, the length of the flexible tube body 110 can be made relatively long, which eliminates the need to place 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 first tube body end 112 and is adapted to be threadedly coupled to 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 and second ends 122 and 124. In this embodiment, the first end 122 of the first joint 120 includes male threads 123 adapted to be threadedly engaged with the air inflator 10. The air core 125 is threadedly engaged within 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 presses against the first tube body end 112, thereby fixing the first joint 120 to the flexible tube body 110.

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

[0027] The joint inner 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 joint outer sleeve 135 includes an internal thread 136 near the fourth end 133 that is adapted to be threadedly engaged with the air nozzle 23 of the dual-wheel tire 20. The joint outer sleeve 135 covers the airtight ring 134 and a portion of the joint inner 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 presses against the second tube body end 114, thereby securing the second joint 130 to the flexible tube body 110.

[0028] The first joint 120 and the second joint 130 of the inflation tube device 100 are both connected to the air inflator 10 and the air nozzle 23 by screwing, so there is no need to hold them in place, making operation more convenient and providing a more stable connection between the air inflator 10 and the dual-wheel tire 20.

[0029] In this embodiment, the cylindrical spring 140 is disposed to cover the flexible tube body 110, is fixed to the first tube body end portion 112 and the second tube body end portion 114, and surrounds a portion of the first joint 120 and a portion of the second joint 130. Because the cylindrical spring 140 of the inflation tube device 100 is disposed to cover the flexible tube body 110, the inflation tube device 100 is wear-resistant. The cylindrical spring 140 prevents the flexible tube body 110 from being rubbed against or damaged by foreign objects, prevents the flexible tube body 110 from being excessively bent, which could cause dents or deformation 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 equal to or smaller than the outer diameter of the first tube bundle 126, and the inner diameter of the cylindrical spring 140 is equal to or smaller than 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 outside the flexible tube body 110 in areas other than the first spring end 142 and the second spring end 144.

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

[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 adapted to be threadedly connected to the air inflator. The second joint is connected to the second end of the flexible tube body and is adapted to be threadedly connected to the air nozzle. Both the first and second joints of the inflation tube device can be connected to the air inflator and the air nozzle by threading, eliminating the need for manual fixing, making operation more convenient and providing 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 adapted to extend into the air nozzle from the space between the outer and inner rings, allowing it to be connected to the air nozzle without bending, making operation easier and eliminating the need to bend the flexible tube body at a large angle, thereby improving the durability of the flexible tube body. Furthermore, the cylindrical spring of the inflation tube device of the present invention is positioned to cover the flexible tube body. The frame effect of the cylindrical spring prevents the flexible tube body from bending excessively, and the flexible tube body is isolated from the hollow part of the rim, which avoids friction and damage, making the inflation tube device wear-resistant. [Industrial Applicability]

[0035] The present invention is applicable 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: Inner circle 26: Rim 27: Hollow part 100: Inflation tube device 110: Flexible tube body 112: First tube body end 114: Second tube body end 120: First joint 121: Joint body 122: 1st end 123: Male thread 124: 2nd end 125: Air core 126: First tube bundle 130: Second joint 131: Joint inner tube 132: Third 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. 1. An inflation tube device 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, a flexible tube body including opposing first and second tube body ends; a first joint connected to the first tube body end and adapted to be threadedly connected to the air inflator; a second joint connected to an end of the second tube body, the second joint extending through a space between the outer ring and the inner ring and adapted to be threadedly engaged with the air nozzle; a cylindrical spring disposed over the flexible tube body, fixed to the first tube body end and the second tube body end, and surrounding a portion of the first joint and a portion of the second joint; 1. An inflation tube apparatus, comprising:

2. The first joint includes a joint body, an air core, and a first tube bundle, the joint body having opposing first and second ends, the air core being threaded into the joint body near the first end, the second end extending into the end of the first tube body, the first tube bundle being 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.

2. The inflation tube device of 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 equal to or smaller than the outer diameter of the first tube bundle.

3. The inflation tube device of claim 2.

4. the cylindrical spring includes a first spring end that presses against the first tube bundle; 3. The inflation tube device of claim 2.

5. the first end includes external threads adapted to be threadably engaged with the air inflator; 3. The inflation tube device of claim 2.

6. the second joint includes a joint inner tube, a gas-tight ring, a joint outer sleeve, and a second tube bundle, the joint inner tube having opposing third and fourth ends, the gas-tight ring being disposed over the fourth end, the joint outer sleeve covering the gas-tight ring and a portion of the joint inner tube and exposing the third end, the third end extending into the second tube body end, the second tube bundle being disposed over the second tube body end, and the second joint being fixed to the flexible tube body by pressing the second tube body end.

2. The inflation tube device of 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 equal to or smaller than the outer diameter of the second tube bundle.

7. The inflation tube device of claim 6.

8. the cylindrical spring includes a second spring end that presses against the second tube bundle; 7. The inflation tube device of claim 6.

9. the joint outer sleeve includes an internal thread near the fourth end adapted to be threadedly engaged with the air nozzle of the dual wheel tire; 7. The inflation tube device of claim 6.

10. a dual wheel tire including an outer wheel and an inner wheel, the outer wheel including an air nozzle facing the inner wheel; An air inflator; 10. The inflation tube device according to claim 1, wherein the first joint is connected to the air inflator, and the second joint extends from a space between the outer ring and the inner ring and is screwed onto the air nozzle of the dual-wheel tire; Includes a dual wheel tire inflation module.

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