TWM602183U - Air core rod - Google Patents

Abstract

This creation is a kind of air core rod, which is used to pass through the air core sleeve and match the air core accessories to form the air nozzle air core. The air nozzle air core is used to install in the air passage of the valve stem of the valve. The air core rod includes a core rod body and an airtight ring. The core rod body includes an airtight section penetrating the air core sleeve and an extension section extending to the bottom end of the valve stem of the valve. The extension section has a top-down The extension part and the non-reverse convex part that are connected in sequence, the outside diameter of the non-reverse convex part is larger than the outside diameter of the extension part and approaches the inner diameter at the bottom end of the vent passage, and the vent passage between the check convex part and the valve stem of the valve A tiny gap is formed between the inner wall surfaces of the airtight ring, and the airtight ring is sleeved on the airtight section of the core rod body. The air core rod of this invention can mainly use the non-reverse convex part at the bottom end of the ventilation channel to prevent the backflow of the reinforcing agent. , And can clear the ventilation channel, can effectively prevent the air intake of the valve stem from being affected by the reinforcing agent.

Description

Air core rod

This creation is a kind of air core rod, especially the air core rod used to pass through the air core sleeve and match the air core accessories to control the air intake.

In general, transportation tools such as bicycles, in order to avoid the problem of tire damage and flattening when traveling, some consumers will first inject reinforcing agents such as anti-explosion fluid, anti-puncture fluid or tire repair fluid into the tires, and use the reinforcing agent It is completely covered in the tire to achieve the reinforcement effect of the tire; when the tire is accidentally punctured by foreign objects, the reinforcing agent will penetrate into the rupture of the tire and reduce the tire flatness.

Wherein, as shown in FIG. 14, the valve rod of the air nozzle generally arranged on the wheel frame 70 of the tire mainly includes a rod body 80 and an airtight body 81 covering the bottom end of the rod body 80. The air nozzle Inside the valve stem is formed a vent passage 82 that penetrates the stem body 80 and the airtight body 81. The valve stem of the air nozzle is provided with an air core assembly 90 at the top of the stem body. The user can inflate the external The device is connected to the valve stem of the air nozzle to input gas into the tire through the air core assembly 90 for inflation. After the inflation is completed, the user can use the air core assembly 90 to close the ventilation channel 82 to achieve The effect of airtightness.

However, if the user fills the tire with a reinforcing agent in advance, the reinforcing agent filled in the tire will easily flow into the air passage 82 of the valve stem of the valve, which will affect the air intake of the valve stem during inflation, even There may be too much reinforcing agent remaining to block the air passage 82, resulting in the problem of difficulty in air intake during the inflation process.

The main purpose of this creation is to provide an air core rod, hoping to improve the flow of reinforcing agent into the air passage of the valve stem of the air nozzle, which will affect the air intake and even block the problem.

In order to achieve the purpose of the previous disclosure, the air core rod of this creation is used to pass through an air core sleeve and is matched with an air core accessory to form an air nozzle air core. The air nozzle air core is used to install on a valve stem In the ventilation channel, the air core rod includes: A core rod body comprising an airtight section and an extension section, the airtight section extends into the air core sleeve, and the airtight section protrudes radially to form a limiting portion and an abutting portion, The extension section extends to the bottom end of the valve stem of the gas nozzle. The extension section has an extension portion and a non-reverse convex portion. The extension portion is arranged below the airtight section. The non-reverse convex portion is Connected to the bottom end of the extension part and located at the bottom end of the vent passage of the valve stem, the outer diameter of the non-return convex part is larger than the outer diameter of the extension part and approaches the inner diameter of the bottom end of the vent passage , And a tiny gap is formed between the non-return protrusion and the inner wall surface of the air passage of the valve stem of the valve; and An airtight ring, which is sleeved on the airtight section of the core rod body, and is located between the limiting part and the abutting part. The abutting part can compress the airtight ring for air Close the air core sleeve tightly.

This creative air core rod can cooperate with different forms of air core sleeves to form air nozzle air cores of different national specifications, and can be used to install in different specifications and sizes of valve stems. Among them, the original creative air core rod can Has the following advantages: 1. Prevent reinforcing agents such as explosion-proof liquid, anti-puncture liquid or tire repair liquid from overflowing into the ventilation channel: because the air core rod of this creation is set in the valve stem of the air nozzle through the air core sleeve, the air The extension of the core rod extends to the bottom end of the valve stem of the valve, the non-return protrusion is located at the bottom end of the vent passage of the valve stem, and the outer diameter of the non-reverse protrusion approaches the bottom of the vent passage The inner diameter of the end, so when there is a reinforcing agent injected into the tire, the non-reverse convex portion can prevent the reinforcing agent from flowing back into the air passage of the valve stem of the valve. 2. The air passage of the valve stem of the valve can be cleared: as mentioned above, the extension of the valve core rod extends to the bottom end of the valve stem of the valve, and the non-return protrusion is located at the valve of the valve The bottom end of the vent passage of the rod, so when there is residual reinforcing agent at the bottom end of the vent passage of the valve stem of the valve, the user can push the core rod of the gas core to push the non-return protrusion out of the vent passage Therefore, the reinforcing agent remaining at the bottom end of the ventilation channel is pushed out, thereby achieving the effect of dredging the ventilation channel and avoiding the problem of the ventilation channel being blocked.

Please refer to Figures 1 to 11, which are several preferred embodiments of the creation of the air core rod, which are used to pass through an air core sleeve 30a, 30b and cooperate with an air core fitting 31 to form an air nozzle air core. The air nozzle air core is used to be installed in the air passages 41 a to 41 g of a valve stem 40 a to 40 g. The air core rod includes a core rod body 10 and an airtight ring 20.

As shown in Figures 1 to 11, the core rod body 10 includes an airtight section 11 and an extension section 12. The airtight section 11 extends into the air core sleeves 30a, 30b, and the airtight section 11 The radial protrusion forms a limiting portion 111 and an abutting portion 112. The extension section 12 extends to the bottom end of the valve stem 40a-40g. The extension section 12 has an extension portion 121 and a check The convex portion 122, the extension portion 121 is arranged below the airtight section 11, the non-reverse convex portion 122 is connected to the bottom end of the extension portion 121 and is located in the air passage 41a of the valve stem 40a-40g At the bottom end of ~41g, the outer diameter of the non-reverse convex portion 122 is greater than the outer diameter of the extension 121 and is close to the inner diameter of the bottom end of the air passage 41a-41g, and the non-reverse convex portion 122 is A gap 13 is formed between the inner wall surfaces of the air passages 41a to 41g of the valve stems 40a to 40g of the valve.

As shown in FIG. 1, the airtight section 11 and the extension section 12 of the core rod body 10 can be integrally formed members; or, as shown in FIG. 2, the airtight section 11 of the core rod body 10 A combination portion 113 is formed at the bottom end, and a matching portion 123 is formed at the top end of the extension section 12. The matching portion 123 of the extension section 12 and the combination portion 113 can be assembled with each other.

Wherein, the combination part 113 of the airtight section 11 and the mating part 123 of the extension section 12 can be assembled in a variety of ways, as shown in FIG. 2, in the preferred embodiment of the inventive air core rod The combination part 113 and the mating part 123 can be respectively formed with corresponding threads and screw holes, and the combination part 113 and the mating part 123 are screwed together; or, as shown in FIG. 3, The mating part 123 is formed with a mating hole, and the combining part 113 is tightly fitted into the mating hole of the mating part 123; or, the mating part 123 is formed with a screw hole, and the combining part 113 is tightly fitted. Or, the combination portion 113 is formed with a thread, and the matching portion 123 is formed with a matching hole, and the combination portion 113 is tightly fitted and extends into the matching portion In the matching hole of 123, the aforementioned screw hole or matching hole forms a reserved hole with a larger inner diameter, which can effectively reduce the difficulty of setting the combined part 113, and can effectively increase the The fitting tightness of the combination part 113, in addition, the screw hole or the fitting hole can also be a straight hole or a reserved hole with a smaller inner diameter is formed inside.

In addition, in the preferred embodiment of the air core rod of the present invention, the outer diameter of the non-return protrusion 122 is close to the inner diameter of the bottom end of the air passage 41a~41g. Furthermore, the airtightness The segment 11 can further form an orientation portion 114 above the limiting portion 111.

As shown in Figures 1 to 4, the airtight ring 20 is sleeved on the airtight section 11 of the core rod body 10 and is located between the limiting portion 111 and the abutting portion 112. The abutting portion 112 can compress the airtight ring 20 to airtightly close the air core sleeves 30a, 30b.

The air core rod of this creation can cooperate with different forms of air core sleeves 30a, 30b and air core accessories 31 to form air nozzle air cores of different national specifications. Among them, the directional portion 114 of the airtight section 11 can cooperate with the air The internal structure of the core sleeves 30a, 30b achieves the effect of orientation, and the gas core fitting 31 can control the axial movement of the gas core rod, thereby controlling whether the gas core sleeves 30a, 30b are closed or not .

The following is an example of a French air nozzle air core composed of the air core rod of this creation and the air core sleeve 30a of the French specification and the air core fitting 31, as shown in Figures 4 to 8, the air core rod can also pass through The air core sleeve 30a is arranged on various valve stems 40a-40e of different sizes and specifications, and the air core rod can adopt corresponding sizes according to the size specifications of the matched valve stems 40a-40e .

In addition, as shown in Figures 9 to 11, the air core rod of this creation is combined with the air core sleeve 30b of American specifications and the air core accessories (not shown) arranged inside the air core sleeve 30b to form an American style Take the air nozzle air core as an example. As shown in Figures 10 and 11, the air core rod can be installed in a variety of different sizes of valve rods 40f-40g through the air core sleeve 30b, and the air core The core rod can adopt the corresponding size according to the size of the matched valve stem 40f~40g.

Among them, as shown in FIG. 12, the air core rod of this creation is matched with the air core sleeve 30a and the air core fitting 31 of French specifications and installed on the first type of valve stem 40a as an example. The air nozzle stem 40a It can be set on the rim 50 of the tire, and controls the gas in and out of the tire through the air nozzle air core composed of the air core rod and the air core sleeve 30a. When the air nozzle air core is in a closed state, the The air core fitting 31 can control the air core rod to move upward relative to the air core sleeve 30a, so that the abutment portion 112 and the bottom edge of the air core sleeve 30a compress the airtight ring 20 , The airtight ring 20 is made to airtightly close the air core sleeve 30a. At this time, the check protrusion 122 is located at the bottom end of the air passage 41a of the valve stem 40a and is connected to A tiny gap 13 is formed between the inner sides of the ventilation channel 41a. Therefore, when the tire is filled with a reinforcing agent, the ventilation channel 41a is closed due to the sealing of the air core of the air nozzle, so that the reinforcing agent It is not easy to enter the ventilation channel 41a from the tiny gap 13, so the non-reverse protrusion 122 can prevent the reinforcing agent from flowing back into the ventilation channel 41a of the valve stem 40a.

As shown in Figure 13, when the user needs to inflate, the user can move the air core rod axially downward by operating the air core fitting 31. At this time, the airtight ring 20 will be separated The bottom edge of the air core sleeve 30a enables the ventilation channel 41a to communicate with the external environment through the air nozzle air core, and the non-return protrusion 122 protrudes out of the valve stem 40a of the air nozzle At the bottom end, the bottom end of the extension part 121 with a smaller outer diameter extends to the bottom end of the air passage 41a, thereby increasing the size of the pore between the extension section 12 and the inner wall surface of the air passage 41a, allowing use The tire can be inflated without affecting the amount of air intake. In addition, the user can push the air core rod to push the non-return protrusion 122 out of the ventilation channel 41a, thereby leaving the remaining in the ventilation channel 41a The reinforcing agent at the bottom end of the channel 41a is pushed out, thereby achieving the effect of dredging the ventilation channel 41a, so as to avoid the problem of the ventilation channel 41a being blocked.

To sum up, the air core rod of the present creation can mainly use the non-reverse convex part 122 at the bottom end of the air passage 41a~41g of the valve stem 40a~40g to prevent the reinforcing agent from flowing backward, and can keep the remaining The reinforcing agent at the bottom end of the ventilation channels 41a-41g is pushed out to achieve the effect of dredging the ventilation channels 41a-41g, which can effectively prevent the air intake of the valve stem 40a-40g from being affected by the reinforcing agent.

10: Mandrel body 11: Airtight section 111: Limit 112: contact part 113: Combination Department 114: Orientation Department 12: Extension 121: Extension 122: check convex 123: Cooperating Department 13: gap 20: Airtight ring 30a, 30b: Air core sleeve 31: Air core accessories 40a~40g: valve stem 41a~41g: ventilation channel 50: Wheel frame 70: wheel frame 80: Rod body 81: airtight body 82: Ventilation channel 90: Air core assembly

Figure 1: This is a schematic diagram of the three-dimensional appearance of the first preferred embodiment of the creative air core rod. Figure 2: This is a three-dimensional exploded schematic diagram of the second preferred embodiment of the creative air core rod. Figure 3: The cross-sectional schematic diagram of the extension section with matching holes of the air core rod of this creation. Figure 4: This is a cross-sectional schematic diagram of the created air core rod with French specifications air core sleeve and air core accessories and installed on the first valve stem. Figure 5: This is a cross-sectional schematic diagram of the created air core rod with French specifications air core sleeve and air core accessories and installed on the second valve stem. Figure 6: This is a cross-sectional schematic diagram of the creation of the air core rod with the French specification air core sleeve and air core accessories and installed on the third valve stem. Figure 7: This is a cross-sectional schematic diagram of the created air core rod with French specifications air core sleeve and air core accessories and installed on the fourth valve stem. Figure 8: This is a cross-sectional schematic diagram of the created air core rod with French specifications air core sleeve and air core accessories and installed on the fifth valve stem. Figure 9: This is a schematic diagram of the air core rod in this creation with the air core sleeve and air core accessories of American specifications. Figure 10: This is a cross-sectional schematic diagram of the created air core rod matched with the air core sleeve and air core accessories of American specifications and installed on the sixth valve stem. Figure 11: This is a cross-sectional schematic diagram of the created air core rod matched with the air core sleeve and air core accessories of American specifications and installed on the seventh valve stem. Figure 12: Schematic diagram of the use state of the air core rod for this creation (1). Figure 13: Schematic diagram of the use state of the air core rod for this creation (2). Figure 14: A schematic diagram of the conventional air core rod in use.

10: Mandrel body

11: Airtight section

111: Limit

112: contact part

114: Orientation Department

12: Extension

121: Extension

122: check convex

13: gap

20: Airtight ring

30a: Air core sleeve

31: Air core accessories

40a: valve stem

41a: Ventilation channel

Claims (8)

An air core rod is used to pass through an air core sleeve and cooperate with an air core accessory to form an air nozzle air core. The air nozzle air core is used to be installed in a vent passage of a valve stem of an air nozzle. The air core rod includes: A core rod body comprising an airtight section and an extension section, the airtight section extends into the air core sleeve, and the airtight section protrudes radially to form a limiting portion and an abutting portion, The extension section extends to the bottom end of the valve stem of the gas nozzle. The extension section has an extension portion and a non-reverse convex portion. The extension portion is arranged below the airtight section. The non-reverse convex portion is Connected to the bottom end of the extension part and located at the bottom end of the air passage of the valve stem of the gas nozzle, the outer diameter of the non-return convex part is greater than the outer diameter of the extension part, and the non-reverse convex part and the gas A gap is formed between the inner wall surfaces of the air passage of the nozzle stem; and An airtight ring, which is sleeved on the airtight section of the core rod body, and is located between the limiting part and the abutting part. The abutting part can compress the airtight ring for air Close the air core sleeve tightly. The air core rod according to claim 1, wherein the airtight section and the extension section of the core rod body are integrally formed. The air core rod according to claim 1, wherein the bottom end of the airtight section of the core rod body is formed with a combined part, and the top end of the extension section is formed with a matching part, and the matching part of the extension section is The combination parts can be combined with each other. The air core rod according to claim 3, wherein the combination portion and the matching portion are respectively formed with corresponding threads and screw holes, and the combination portion and the matching portion are mutually screwed. The air core rod according to claim 3, wherein the mating part is formed with a mating hole, and the combined part is tightly fitted into the mating hole of the mating part. The air core rod according to claim 3, wherein the mating part is formed with a screw hole, and the combined part is tightly fitted into the screw hole of the mating part. The air core rod according to claim 3, wherein the combination part is formed with a thread, and the matching part is formed with a matching hole, and the combination part is tightly fitted into the matching hole of the matching part. The air core rod according to any one of claims 1 to 7, wherein the airtight section forms an orientation portion above the limiting portion.

Images