TWM623081U - Quick release structure of air valve extension - Google Patents

Abstract

The present invention provides a quick dismantling structure for extending a gas nozzle, which comprises a hollow tubular extension piece, and an air flow channel is formed inside the extension piece. An inflatable part which can be assembled with an air valve on a bicycle tire; an inflatable part, the inflatable part comprises a bottle receiving part, an inflating part and an air passage communicating with the bottle receiving part and the inflating part, the bottle receiving part is used for In a detachable combination with a steel cylinder; wherein, the inflatable part is detachably connected to the assembly end of the extension piece by using the inflatable part, and when the inflatable part is docked with the assembly end, the air channel can be connected to the air flow channel Connected.

Description

Quick release structure of valve extension

An air nozzle structure, particularly a quick-release structure for extending the air nozzle.

Because bicycles have the characteristics of leisure, sports and transportation, bicycles have become a popular choice for sports or transportation in recent years. In order to avoid the temporary situation of a flat tire on the bicycle during riding, it is necessary to carry a pump with you.

In order to pursue easy-to-carry and high-efficiency inflation, a cylinder that can be easily inflated in a timely manner and an air nozzle detachably connected to the cylinder and the air valve on the tire are often selected, so that the air nozzle can communicate with the cylinder and the air valve. and inflate the tire.

However, although the steel cylinder and the air nozzle are bulky and easy to carry, the air valve of the tire is often arranged between the spokes, so that when the user uses the steel cylinder and the air nozzle to inflate, the spokes will still be inflated due to the size of the spokes. Setting and constricting the operating space will affect the convenience of use. Therefore, developing a structure that can extend the air nozzle is the main research and development goal of the related industry.

In order to develop a structure that can extend the air nozzle, the present invention provides a quick-release structure for extending the air nozzle. an assembly end, the air nozzle end can be used for assembling butt joint with an air valve on a bicycle tire; an inflatable part, the inflatable part includes a bottle receiving part, an inflating part and communicated with the bottle receiving part and the inflating part An air passage of the part, the bottle receiving part is used for detachable combination with a steel cylinder; wherein, the inflatable part is detachably buttted with the assembly end of the extension part by the inflatable part, and the inflatable part is butted with the assembly end , the air passage can communicate with the air passage.

Wherein, the assembly end includes an assembly joint, and the assembly joint penetrates an assembly interface that communicates with the air passage; the inflatable portion includes an inflatable joint, and the inflatable joint penetrates the inflatable interface communicated with the air passage. The assembly The connector can be butted with the inflation connector so that the assembly interface and the inflation connector communicate.

Wherein, the inflatable joint and the assembly joint are screwed and connected to each other by means of a mutual threaded structure.

Wherein, the inflatable joint and the assembly joint are engaged with each other by a male and female head structure corresponding to the structure.

Wherein, the assembly joint includes an assembly section located in the direction of the assembly end, and a necked section located in the direction of the gas nozzle end, wherein the outer diameter of the necked section is smaller than the outer diameter of the assembly section; the inflation The joint includes an annular inner ring member and an outer ring member annularly sleeved on the outer wall of the inner ring member, and the outer ring member can slide relative to the inner ring member along the axial direction

Wherein, the inner diameter of the inner ring is slightly larger than the outer diameter of the assembling section, the ring wall of the inner ring is radially penetrated with at least one perforation, a metal ball is placed in the perforation, and the length of the perforation is smaller than the length of the perforation. The diameter of the metal ball, and the diameter of the through hole is smaller than the diameter of the metal ball; the inner wall located at the free end of the outer ring member is recessed with a accommodating groove, and the depth of the accommodating groove is smaller than the diameter of the metal ball, wherein the accommodating groove is The groove can selectively correspond to the through hole with the displacement of the outer ring relative to the inner ring.

Further, a spring is provided, and the spring continuously imparts an abutting force to the outer ring member moving toward the free end.

Further, a stopper is disposed on the outer wall surface of the inner ring, and the stopper stops the outer ring from moving toward the free end.

Further, an elastic member is disposed between the inflation joint and the assembly joint.

Further, a thimble structure is provided at the bottle mouth, the thimble structure is a hollow tube body, the outer diameter of the thimble structure is equal to the inner diameter of the bottle mouth, and the end face of a thimble end of the thimble structure includes There is a bevel.

Further, an air nozzle valve structure is included, and the air nozzle valve structure can selectively regulate the opening or closing of the air passage or the air passage.

When the extension piece and the inflatable piece of the present invention are assembled, the outer ring piece is pulled to move away from the free end relative to the inner ring piece, and the position of the accommodating groove corresponds to the through hole. Next, the assembly joint is placed in the inner ring of the inflatable joint with the assembly section, so that the assembly interface is butted with the inflatable interface. At this time, the necked section is located in the inner ring and corresponds to the through hole .

Then, release and pull the outer ring, so that the spring moves the outer ring toward the free end due to the elastic restoring force, so that the inner wall of the abutting section closes the hole on the surface of the inner ring, and provides the thrust to make The metal ball moves toward the inner ring, at least a part of the metal ball protrudes from the inner wall of the inner ring, and abuts against the inner wall of the necked section, because the spring continues to give the abutting force , so that the metal ball can be used to lock the inflatable joint and the assembly joint.

After the extension piece and the inflatable piece are assembled, the air flow channel is in butt communication with the inflatable interface of the air channel through the assembly interface. Further, when the inflatable member is combined with the steel cylinder using the bottle receiving portion, and the extension member is connected to the air valve by using the gas nozzle end, the gas in the steel cylinder can be released in sequence according to the principle of pressure release. The bottle receiving port enters the air passage and the air passage, and finally enters the bicycle tire through the air nozzle port and the air valve to achieve the effect of inflation. If you want to disassemble after inflation, you only need to disengage the air nozzle from the air valve, remove the steel cylinder, and pull the outer ring to remove the assembly section from the inner ring and separate the extension and the inflator.

The quick dismantling structure for the extension of the air nozzle provided by the new model has a simple structure of the extension piece and the inflatable piece, which can be assembled conveniently and quickly; The inflator and the steel cylinder are far away, and the air valve of the tire is arranged between the intervals of the spokes, which increases the overall operating space, and because the tubular shape is flexible, the user can use any comfortable and convenient The step of inflating is carried out at an angle; when not in use, the extension piece can also be disassembled from the inflatable piece, which is easy to store and carry.

Please refer to FIG. 1 and FIG. 2 , which is a preferred embodiment of the quick-release structure for extending the air nozzle provided by the new model, which includes an extension piece 10 and an inflatable piece 20 . The extension piece 10 is a hollow tubular shape, and its interior An air flow channel is formed, and the two ends of the extension piece 10 are a gas nozzle end 11 and an assembly end 12 respectively. A valve mountable butt on a bicycle tire. The assembling end 12 includes an assembling joint 121 , the assembling joint 121 penetrates the assembling interface 122 which communicates with the air passage, and the extension piece 10 is connected with the inflating piece 20 by the assembling joint 121 .

The inflating member 20 includes a bottle receiving portion 21 , an inflating portion 22 and an air passage communicating between the bottle receiving portion 21 and the inflating portion 22 . The bottle receiving portion 21 is provided with a bottle receiving port that communicates with the air passage. The inflator 20 utilizes the detachable combination of the bottle receiving portion 21 and a steel cylinder, so that the air passage can communicate with the interior of the steel cylinder through the bottle receiving port. , and guide one of the gas in the cylinder to flow in the direction of the inflation part 22 to achieve the effect of inflating the tire of the bicycle.

The extension member 10 is preferably a flexible tube, so that the extension member 10 can be curved according to the required concave during use. More preferably, at least a part of the extension member 10 is made of low thermal conductivity material In this way, when the extension piece 10 is inflated, the surface of the extension piece 10 will not be frostbitten to the user because the temperature of the steel cylinder decreases when the pressure is released.

Preferably, a thimble structure is provided at the mouth of the bottle, so that when the bottle receiving portion 21 is combined with the steel cylinder, the thimble structure can pierce a film of the mouth of the steel bottle, which is helpful for the release of the gas. In this embodiment, the thimble structure is a hollow tube body, the outer diameter of the thimble structure is equal to the inner diameter of the bottle mouth, and the end face of a thimble end of the thimble structure includes a chamfered surface, so that the most The end forms a needle-like structure. When the bottle receiving portion 21 is combined with the steel cylinder, the thimble structure penetrates the film with the thimble end and penetrates deep into the steel cylinder, so that the gas can be guided through the thimble structure and is not easy to leak.

The inflatable part 22 is provided with an inflatable joint 221, and the inflatable joint 221 penetrates the inflatable interface 222 which communicates with the air passage. An air passage may communicate with the air flow passage.

The manner in which the inflatable joint 221 is docked with the assembly joint 121 is not limited. The inflatable joint 221 and the assembly joint 121 can be connected to each other by means of a threaded structure, or the inflatable joint 221 can be connected with the assembly joint 121. A male and female head structure corresponding to the structure is designed to be engaged with each other. Further, adding an elastic member between the inflatable joint 221 and the assembly joint 121 can further prevent the gas from leaking out at the butt joint of the inflatable joint 221 and the assembly joint 121 when the air channel flows to the air flow channel. .

Please refer to FIG. 2 , FIG. 3 and FIG. 4 , in this embodiment, the assembly joint 121 includes an assembly section 1211 located in the direction of the assembly end, and is located in the direction of the air nozzle end 11 and recessed in the assembly A necked section 1212 on the surface of the joint 121, the outer diameter of the necked section 1212 is smaller than the outer diameter of the assembly section 1211, wherein a tapered slope 1213 is formed between the necked section 1212 and the surface of the assembly section 1211 .

The inflatable joint 221 includes an annular inner ring member 2211 and an outer ring member 2212 annularly sleeved on the outer wall of the inner ring member 2211, and the outer ring member 2212 can be axially opposite to the inner ring member 2211 slide.

The inner diameter of the inner ring member 2211 is slightly larger than the outer diameter of the assembly joint 121 . At least one through hole 2213 is radially penetrated through the ring wall of the inner ring member 2211 , and a metal ball 2218 is placed in the through hole 2213 , wherein, The overall length of the through hole 2213 (that is, the thickness of the ring wall of the inner ring member 2211) is smaller than the diameter of the metal ball 2218, and the through hole diameter of the through hole 2213 is also smaller than the diameter of the metal ball 2218, so that the metal ball 2218 passes through the inner ring When the direction of the outer wall of the member 2211 is inserted into the through hole 2213, the metal ball 2218 is trapped in the through hole 2213 to a limited extent and at least a part of the metal ball 2218 protrudes from the inner wall of the inner ring member 2211. 2218 will not fall directly into the inner ring 2211 through the through hole 2213 .

The outer ring member 2212 includes an accommodating section 2214 and an abutting section 2215 disposed at opposite ends. The accommodating section 2214 located at the free end of the outer ring member 2212 is recessed with a accommodating groove 2216 in the inner wall. The distance formed between the surface of 2216 and the surface of the inner ring member 2211 is smaller than the diameter of the metal ball 2218 . Wherein, the accommodating groove 2216 changes its position relative to the inner ring member 2211 with the displacement of the outer ring member 2212 relative to the inner ring member 2211 .

As shown in FIG. 3 , when the inflatable joint 221 is in a first state, the inner wall of the abutting section 2215 of the outer ring member 2212 closes the through hole 2213 on the surface of the ring wall of the inner ring member 2211 , and the accommodating groove 2216 does not correspond to the position of the through hole 2213 . The inner wall of the abutting section 2215 provides a thrust of the metal ball 2218 located in the through hole 2213 toward the inner ring member 2211 , so that at least a part of the metal ball 2218 protrudes from the inner wall of the inner ring member 2211 .

Preferably, a spring (not shown in the figure) is provided, and the spring continuously provides the outer ring member 2212 with an abutting force toward the free end, so that the inflatable joint 221 can be continuously biased to exist in the first state. . A stopper 2217 may be disposed on the outer wall surface of the inner ring member 2211 , so that when the outer ring member 2212 moves toward the free end, the stopper member 2217 can stop the outer ring member 2212 and prevent the outer ring member 2217 2212 to the outer periphery of the inner ring member 2211 to fall off.

Next, as shown in FIG. 4 , when the inflation joint 221 is in a second state, the outer ring member 2212 moves away from the free end relative to the inner ring member 2211 , so that the position of the receiving groove 2216 corresponds to the through hole 2213 , At this time, the thrust provided by the outer ring member 2212 to the metal ball 2218 disappears, so that the metal ball 2218 moves toward the outer wall of the inner ring member 2211 from the through hole 2213 . When the metal ball 2218 moves toward the outer wall of the inner ring member 2211, at least a part of the metal ball 2218 protrudes from the outer wall of the inner ring member 2211 and abuts against the inner wall of the accommodating section 2214. Thus, the The metal ball 2218 can be placed between the receiving groove 2216 and the through hole 2213 so as not to fall out of the through hole 2213 .

When the extension member 10 and the inflatable member 20 of the present invention are assembled, the outer ring member 2212 is pulled to move away from the free end relative to the inner ring member 2211, and the position of the accommodating groove 2216 corresponds to the through hole 2213, The inflation joint 221 assumes the second state. Next, the assembly joint 121 is placed in the inner ring member 2211 of the inflation joint 221 with the assembly section 1211, so that the assembly interface 122 and the inflation interface 222 are butted, and at this time, the necked section 1212 is located in the inner ring 2211. The ring member 2211 corresponds to the through hole 2213 .

Next, release and pull the outer ring member 2212, so that the spring moves the outer ring member 2212 toward the free end due to the elastic restoring force, so that the inner wall of the abutting section 2215 closes the through hole 2213 on the surface of the inner ring member 2211, and provide the thrust force to move the metal ball 2218 toward the inner ring member 2211. At least a part of the metal ball 2218 protrudes from the inner wall of the inner ring member 2211 and abuts against the inner wall of the necked section 1212 and The conical inclined surface 1213, because the spring continues to give the abutting force, so that the inflatable joint 221 can continue to exist in the first state, so that the inflatable joint 221 and the assembly joint 121 can be locked by the metal ball 2218 .

After the extension member 10 and the inflatable member 20 are assembled, the air passage is connected to the inflatable port 222 of the air passage through the assembly port 122 . Using the outer ring member 2212 to press the metal ball 2218 to engage with the necking section 1212 can not only achieve the effect of airtightness to prevent gas leakage, but also under the structure of this embodiment, the assembly joint 121 and the inflator The joint 221 can be relatively rotated during assembly and is not easily loosened. This feature allows the extension piece 10 assembled with the inflatable piece 20 not only to exhibit good flexibility, but also to use the relative extension piece 10 . Rotate to more adaptable applications.

Further, when the inflatable member 20 is combined with the steel cylinder by the bottle receiving portion 21, and the extension member 10 is connected with the air valve by the air nozzle end 11, the gas in the steel cylinder can be released according to the principle of pressure release, It enters the air passage and the air passage through the bottle receiving mouth in sequence, and finally enters the bicycle tire through the air nozzle mouth and the air valve, so as to achieve the effect of inflation. If you want to disassemble after inflation, you only need to disengage the air nozzle from the air valve, remove the steel cylinder, and pull the outer ring member 2212, so that the inflation joint 221 is in the second state, then the assembly section 1211 can be assembled. Remove the inner ring member 2211 to separate the extension member 10 and the inflatable member 20 .

Further, the quick-release structure of the air nozzle extension provided by the present invention may also include a valve valve structure 30, and the valve valve structure 30 can selectively regulate the opening or closing of the air passage or the air passage, so that the air passage can be opened or closed. When the inflator 20 is combined with the cylinder by the bottle receiving portion 21 , the air passage or the air passage can be opened or closed through the air nozzle valve structure 30 . In use, it can be ensured that the inflation member 20 and the extension member 10 are completely assembled, and the extension member 10 is also connected to the air valve on the bicycle tire, and then the air valve structure 30 is used to open the air passage or The air flow channel prevents unnecessary losses caused by the uncontrollable discharge of air flow after the cylinder group is assembled, and even causes the tire to be unable to be fully inflated.

10: Extensions 11: Valve end 12: Assembly end 121: Assembly Connector 1211: Assembly Section 1212: necked segment 1213: Tapered Bevel 122: Assembly interface 20: Inflatable parts 21: bottle receiving department 22: Inflatable part 221: Inflatable joint 2211: Inner ring 2212: Outer ring 2213: Perforation 2214: accommodating segment 2215: abutting segment 2216: accommodating groove 2217: Stopper 2218: Metal Ball 222: Inflatable interface 30: Air nozzle valve structure

Fig. 1 is the three-dimensional schematic diagram of the new preferred embodiment Figure 2 is an exploded schematic diagram of the new preferred embodiment 3 is a schematic cross-sectional view of the first action of the new preferred embodiment 4 is a schematic cross-sectional view of the second action of the new preferred embodiment

10: Extensions

11: Valve end

12: Assembly end

121: Assembly Connector

20: Inflatable parts

30: Air nozzle valve structure

Claims (10)

A quick-release structure for extending a gas nozzle, which comprises: an extension piece in the shape of a hollow tube, an air flow channel is formed inside the extension piece, the two ends of the extension piece are respectively a gas nozzle end and an assembly end, and the gas nozzle end can be used with An air valve on a bicycle tire can be assembled butt; and an inflatable part, the inflatable part includes a bottle receiving part, an inflating part and an air passage communicating with the bottle receiving part and the inflating part, the bottle receiving part is used for A detachable combination with a steel cylinder; wherein the inflatable part is detachably buttted with the assembly end of the extension piece, and when the inflatable part is butted with the assembly end, the air passage can communicate with the air passage. According to the quick-release structure of the extension of the air nozzle according to claim 1, the inflatable part and the assembly end are connected to each other by means of a mutual screw thread structure. According to the quick-release structure of the extension of the air nozzle according to claim 1, the inflatable part and the assembly end are engaged with each other by a male and female head structure corresponding to the structure. The quick-release structure for extending a valve as claimed in claim 1, wherein: the assembly end includes an assembly section located in the direction of the assembly end, and a necked section located in the direction of the valve end, wherein the neck The outer diameter of the shrinking section is smaller than the outer diameter of the assembly section; and the inflatable part includes an annular inner ring, the inner diameter of the inner ring is slightly larger than the outer diameter of the assembly section, and the ring wall of the inner ring At least one through hole is radially penetrated, a metal ball is placed in the through hole, and an outer ring member annularly sleeved on the outer wall of the inner ring member, the outer ring member can slide relative to the inner ring member along the axial direction , the inner wall of the free end of the outer ring member is recessed with a receiving groove, wherein the length of the through hole is smaller than the diameter of the metal ball, and the diameter of the through hole is smaller than the diameter of the metal ball, and the depth of the receiving groove is smaller than the diameter of the metal ball diameter; and The accommodating groove can selectively correspond to the through hole along with the displacement of the outer ring relative to the inner ring. When the assembly section is placed in the inner ring, the necked section is located in the inner ring corresponding to the perforation. The quick release structure of the extension of the air nozzle according to claim 4 is provided with a spring, and the spring continuously provides an abutting force to the outer ring member moving toward the free end. According to the quick release structure for extending the air nozzle according to claim 5, a stopper is provided on the outer wall surface of the inner ring, and the stopper stops the outer ring from moving toward the free end. According to the quick-release structure for extending the air nozzle according to any one of claims 3 to 6, the extension piece is a flexible tube, or at least a part of the extension piece is made of a material with low thermal conductivity. According to the quick-release structure for extending the air nozzle according to claim 7, an elastic member is disposed between the inflating part and the assembling end. According to the quick-release structure of the extension of the gas nozzle according to claim 8, the combination of the bottle receiving portion and the steel cylinder includes a bottle receiving mouth, and a thimble structure is provided at the bottle receiving mouth, and the thimble structure is a hollow tube body , the outer diameter of the thimble structure is equal to the inner diameter of the bottle receiving mouth, and the end face of a thimble end of the thimble structure contains a chamfered surface. The quick-release structure for extending the air nozzle as claimed in claim 9 includes an air nozzle valve structure, and the air nozzle valve structure can selectively regulate the opening or closing of the air passage or the air passage.

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