TWI701168B - High-flow two-stage gas nozzle - Google Patents

Abstract

The present invention is a high-flow two-stage gas nozzle, which includes an inner guide groove guide in a small diameter air hole section of an outer tube The outer guide portion of the outer guide sleeve is combined to form an axial displacement based on the screw operation of the inner guide thread and the outer guide thread of the adjusting sleeve, and the outer guide sleeve is set in the outer ring groove of the valve stem to avoid occupying the valve. The internal space of the stem inlet allows the inlet of the valve stem to have a large outlet area to form a larger air flow. In the first stage of inflation (or deflation), a larger air outlet area is used to amplify the air flow to accelerate the inflation speed , And in the second stage of inflation (or deflation), through the slight adjustment of high pressure and small flow, the inflation (or deflation) can be accurately controlled to the expected pressure value, and better quality of inflation and use progress can be provided.

Description

High-flow two-stage gas nozzle

The invention relates to the technical field of air nozzle structures for tires, in particular to a high-flow two-stage air nozzle.

The tire valve is a design that is installed in the tire and protrudes from the periphery of the rim frame. It mainly has a valve seat, and a valve stem is set in the valve seat to control the gas in and out and provide an airtight state. The tire can be filled with gas through the tire air nozzle, so that the tire has a certain tire pressure.

As shown in the ninth and tenth figures, they are cross-sectional views of the vertical and horizontal sections of the conventional gas nozzle composition structure, that is, the gas nozzle composition structure is provided with a plurality of guide grooves (61) in the gas inlet channel (61) of the gas nozzle body (60) 62), used to set opposite to a valve stem (70) with a plurality of axial guide ribs (71), so that when the valve stem (70) is driven by the screw of the screw with the external thread section at one end, it passes through the guide When the guide between the groove (62) and the axial guide rib (71) forms an axial forward and retreat air nozzle opening and closing; there will only be left between the air inlet channel (61) and the valve stem (70) The small outlet area with a very small gap provides inflation and deflation, which can only allow a small amount of air flow to pass, which will lengthen the time of inflation and deflation, and cause many inconveniences in use. This is to reveal the structure of the conventional air nozzle. The biggest disadvantage of use.

Therefore, how to provide the inflatable and deflated outlet area for the conventional air nozzle composition structure is too small, which will cause the inflation and deflation time to be prolonged and inconvenient to use, etc., and the inventor who innovates is the difficult point that this case intends to solve. .

The main purpose of the present invention is to provide a high-flow two-stage gas nozzle, which guides and combines the outer guide part of the outer guide sleeve in the inner guide groove of the small diameter air hole section of the outer tube, so that the inner guide thread and outer guide thread of the adjusting sleeve The screw operation of the guide thread forms an axial displacement. The outer guide sleeve is set in the outer ring groove of the valve stem to avoid occupying the inner space of the valve stem inlet, so that the valve stem's inlet can have a large outlet area to form a relatively large outlet area. Atmospheric flow rate, and in the first stage of inflation (or deflation), a larger air outlet area is used to amplify the air flow rate to accelerate the inflation rate.

The second and first purpose of the present invention is to provide a high-flow two-stage gas nozzle. When the second stage is inflated (or deflated), through the slight adjustment of high pressure and small flow, it can effectively and accurately control the inflation (or deflation) to the expected pressure Value, and provide better quality of inflation and use progress.

In order to achieve the above-mentioned purpose and effect, the high-flow two-stage gas nozzle of the present invention is used to install on a rim to provide inflation. It includes: a valve stem has an outer non-leak ring set on the outer circumference of one end and the opposite end An air inlet is recessed in the inner axial direction, the valve stem has an air inlet hole radially penetrating the air inlet, and the valve stem has an outer ring groove adjacent to the air inlet hole and an outer ring groove that sets the outer ring groove The outer guide sleeve has at least one protruding outer guide part on the outer circumference side, and the valve stem is additionally provided with an outer guide thread located on the outer circumference side of the opening end of the inlet; an outer pipe has a large diameter communicating with each other The hole section, a small-diameter pore section, and an inner step between the large-diameter pore section and the small-diameter pore section. The inner hole wall of the small-diameter pore section has an inner guide groove recessed corresponding to the outer guide part. The small diameter air hole section sets the valve stem and the inner guide groove sets the outer guide part, and the outer guide thread extends out of the small diameter air hole section; an inner tube has an outer set of threads located on the outer tube wall and sets at An inner sleeve at one end, the inner tube passes through the assembly hole of the rim and extends into the outer tube, and the outer set of threaded screws set the large-diameter hole section, and the outer set of threads drives the inner sleeve of the inner tube axially Moved and fixed with the end of the large-diameter hole section to be clamped against the rim; and an adjusting sleeve has an inner guide thread on the inner wall, the inner guide thread of the adjusting sleeve and the outer guide thread screw set extending out of the small-diameter air hole section, And the inner lead thread drives the outer stop ring shaft of the valve stem The inner guide thread drives the outer anti-leak ring of the valve stem and the inner step to form a large and small gap away from the inner step, which is used to form the air inlet and small diameter. The two-stage control of the air inlet and outlet of the air hole section, and the outer stop ring of the valve stem and the inner step are forced to close the air flow of the air inlet hole.

A further technical feature of the present invention is that the inner wall of the large diameter hole section has an inner set of threads screwed to the outer set of threads and an inner ring groove adjacent to the inner set of threads, and the inner ring groove set is tightened outside the inner tube An inner stop ring on the surface.

A further technical feature of the present invention is that it further has an outer sleeve of the inner tube of the set and abuts between the end of the large diameter hole section of the outer tube and the rim.

A further technical feature of the present invention is that the inner set of threads of the outer catheter spirally advance and retreat to the outer set of threads of the inner catheter and drive the outer sleeve to move axially for a distance of 8MM.

A further technical feature of the present invention is that the outer pipe has an external thread section located on the outer peripheral side of the small diameter air hole section, and the external thread section is screwed with an outer cover for sealing the air inlet and the small diameter air hole section.

[Learning]

(60): Valve body

(61): Inlet Channel

(62): Guide groove

(71): Axial guide rib

(70): Stem

[This creation]

(10): Stem

(11): Outer stop ring

(12): Inlet

(121): Air intake

(13): Outer ring groove

(14): Outer guide sleeve

(141): Outer Guide Department

(15): External lead thread

(20): Outer catheter

(21): Large diameter hole section

(22): Small diameter stoma section

(221):Inner guide groove

(222): External thread section

(23): inner step

(24): Internal thread

(25): Inner ring groove

(26): Inner stop ring

(30): Inner catheter

(31): External thread

(32): Inner sleeve

(33): External sleeve

(40): adjustment sleeve

(41): Internal lead thread

(D): Axial movement distance

(50): Outer cover

(80): Wheel

The first figure is a schematic diagram of the three-dimensional assembly of the present invention.

The second figure is a three-dimensional exploded view of the present invention.

The third figure is a schematic cross-sectional view of the combination of the present invention.

The fourth figure is a schematic cross-sectional view of the line segment IV-IV in the third figure.

The fifth figure is a schematic cross-sectional view of the complete combination of the invention and the rim.

The sixth figure is a schematic cross-sectional view of the first stage of low pressure and high flow inflation in the present invention.

Figure 7 is a schematic cross-sectional view of the second stage of high-pressure and low-flow inflation in the present invention.

The eighth figure is a schematic cross-sectional view of the closed air inlet and the small diameter air hole section after the inflation is completed.

The ninth figure is a longitudinal cross-sectional view of the structure of the conventional gas nozzle.

The tenth figure is a transverse cross-sectional view of the structure of the conventional gas nozzle.

In order to achieve the above-mentioned objectives and effects, as well as the technical means and structures adopted by the present invention, the features and effects of the embodiments of the present invention are described in detail with the figures.

Please refer to Figures 1 to 8, a high-flow two-stage gas nozzle of the present invention is used to install on a rim (80) for inflating use. It includes: a valve stem (10) with an outer peripheral side set at one end A non-leak ring (11) and an air inlet (12) axially recessed from the opposite end, the valve stem (10) has an air inlet (121) radially penetrating the air inlet (12) , The valve stem (10) has an outer ring groove (13) adjacent to the air inlet (121) and an outer guide sleeve (14) that sets the outer ring groove (13), and the outer circumference of the outer guide sleeve (14) The side is provided with at least one outer guide portion (141) protruding, and the valve stem (10) is additionally provided with an outer guide thread (15) located on the outer peripheral side of the open end of the air inlet (12).

An outer duct (20) has a large-diameter hole section (21), a small-diameter pore section (22), and an inner part between the large-diameter hole section (21) and the small-diameter pore section (22) that are connected to each other. Close to the step (23), the inner hole wall of the small diameter air hole section (22) has an inner guide groove (221) recessed corresponding to the outer guide portion (141), and the small diameter air hole section (22) sets the valve stem ( 10) The inner guide groove (221) sets the outer guide portion (141), and the outer guide thread (15) extends out of the small diameter air hole section (22).

An inner tube (30) has an outer set of threads (31) on the outer tube wall and an inner sleeve (32) set at one end, the inner tube (30) passes through the assembly hole of the rim (80) And extend into the outer tube (20) and the outer thread (31) screw group large diameter hole section (21), the outer thread (31) spirally drives the inner sleeve (32) of the inner tube (30) axially Move and clamp the end of the large-diameter hole section (21) against the rim (80) and fix it.

And an adjusting sleeve (40) has an inner guide thread (41) located on the inner wall, the inner guide thread (41) of the adjustment sleeve (40) and the outer guide thread (15) protruding from the small diameter air hole section (22) The screw set, and the inner guide thread (41) drives the outer anti-leak ring (11) of the valve stem (10) to move axially to move away from or force against the inner step (23).

Wherein, the inner guide thread (41) drives the outer anti-leak ring (11) of the valve stem (10) and the inner step (23) to form a large and small gap away from each other in two stages to form a gas inlet (121) , Two-stage control of air inlet and outlet in the small diameter air hole section (22), the outer stop ring (11) of the valve stem (10) and the inner step (23) are forced to close the air flow of the air inlet hole (121).

The foregoing are the main technical features of the main embodiment of the present invention, which correspond to the content of the first item of the patent application in this case, so that the purpose and implementation mode of the present invention can be known in detail, while the technical features described in the other appended patent scope are correct The detailed description or additional technical features of the first item of the scope of patent application are not used to limit the scope of the first item of the scope of patent application. It should be understood that the first item of the scope of patent application in this case does not necessarily include the scope of the remaining subsidiary patent applications Technical characteristics.

The features of each element of the present invention will be further described in detail below. In the first to eight figures above, the inner wall of the large-diameter hole section (21) has an inner set of threads (24) screwed with the outer set of threads (31) And an inner ring groove (25) adjacent to the inner set of threads (24), the inner ring groove (25) sets an inner anti-leak ring (26) tightened on the outer surface of the inner tube (30). Secondly, the inner thread (24) of the outer tube (20) spirally advances and retreats from the outer thread (31) of the inner tube (30) and drives the outer sleeve (33) to move axially for a distance (D) of 8MM. Furthermore, the outer tube (20) has an external thread section (222) located on the outer circumference of the small diameter air hole section (22), and the external thread section (222) is screwed into an outer cover (50) to close the air hole ( 121), small diameter stomata section (22). Moreover, there is a circumscribed sleeve (33) of the inner tube (30) set and abuts between the end of the large-diameter hole section (21) of the outer tube (20) and the rim (80).

As shown in the third and fifth figures, because of the present invention, the inner thread (24) of the outer catheter (20) spirals forward and backward on the outer thread (31) of the inner catheter (30) and can drive the outer sleeve (33) to form 8MM The axial movement distance of the inner tube (30) of the present invention can be penetrated between the inner sleeve (32) of the inner tube (30) and the end of the large-diameter hole section (21) of the outer tube (20). The axial movement formed by the screw adjustment operation of the outer set of threads (31), and when the assembly hole of the rim (80) is clamped and assembled (as shown in the fifth figure), it can be flexibly adapted to wheels of different thicknesses. The ring (80) is suitable for a wide range of installations.

As shown in the fourth figure, because of the present invention, the inner guide groove (221) of the small diameter air hole section (22) of the outer catheter (20) guides the outer guide portion (141) of the outer guide sleeve (14), according to An axial displacement guide is formed in the screw operation of the inner guide thread (41) and the outer guide thread (15) of the adjusting sleeve (40); and by setting the outer guide sleeve (14) on the valve stem (10) The outer ring groove (13) of the valve stem (10) avoids occupying the inner space of the air inlet (12) of the valve stem (10), and the air inlet (12) of the valve stem (10) can have a large outlet area to form a larger air flow.

As shown in the sixth figure, when the inner guide thread (41) drives the outer stop ring (11) of the valve stem (10) and the inner step (23) to form a large gap away from the first stage of operation, the large outlet area The air inlet (12) can communicate through the air inlet (121) to the larger gap formed by the anti-leak ring (11) and the inner step (23) to provide a large flow of inflation (or deflation), as shown in the figure. As indicated by the thick hollow arrow of the catheter (30), the inflation (or deflation) speed can be accelerated, and the predetermined inflation (or deflation) air pressure can be quickly reached, which effectively shortens the operation time and improves the use.

As shown in the seventh figure, when the inflation (or deflation) is close to the predetermined pressure, the spiral rotation of the inner guide thread (41) and the outer guide thread (15) of the adjusting sleeve (40) drives the valve stem (10) ) The outer stop ring (11) and the inner step (23) form a small gap away from the second stage of operation, then a small outlet area can be formed to provide high pressure and small flow inflation (or deflation), as shown in the figure. Catheter (30) thinner arrow As shown, the slight adjustment of high pressure and small flow can effectively and accurately control the inflation (or deflation) to the predetermined pressure value, and provide better quality inflation and use progress.

As shown in the eighth figure, when the inflation (or deflation) operation is completed, the inner guide thread (41) of the adjusting sleeve (40) drives the outer non-leak ring (11) of the valve stem (10) to move axially and to The inner step (23) is forced to close the air flow, and the outer threaded section (222) is screwed into an outer cover (50) to close the air inlet (121) and the small diameter air hole section (22) to prevent internal air The leakage and dirt attached to the small-diameter air hole section (22) cause the blockage of inflation (or deflation).

As described above, the inner guide groove (221) of the small-diameter air hole section (22) of the outer catheter (20) of the present invention guides the outer guide portion (141) of the outer guide sleeve (14) according to the adjustment sleeve ( The screw operation of the inner guide thread (41) of 40) and the outer guide thread (15) form an axial displacement; and by setting the outer guide sleeve (14) in the outer ring groove (13) of the valve stem (10) In order to avoid occupying the internal space of the inlet (12) of the valve stem (10), the inlet (12) of the valve stem (10) can have a large outlet area to form a larger air flow, which can indeed break through the air nozzle in the air ( (Or deflated) The difficulties and shortcomings in the development of flow and pressure control technology, and achieve the following advantages:

1. In the first stage of inflation (or deflation), use a larger air outlet area to amplify the air flow rate to speed up the inflation rate.

2. In the second stage of inflation (or deflation), through the slight adjustment of high pressure and small flow, it can effectively and accurately control the inflation (or deflation) to the expected pressure value, and provide better quality inflation and use progress.

The above descriptions are only used to explain the preferred embodiments of the present invention, and are not intended to restrict the present invention in any form. Therefore, any modification related to the present invention made under the same creative spirit Or changes, other types that can be implemented and have the same effect, should still be included in the scope of the present invention.

In summary, the practicability and cost-effectiveness of the "high-flow two-stage gas nozzle" of the present invention is indeed fully in line with the development needs of the industry, and the disclosed structure creation also has an unprecedented innovative structure. It should be considered "novelty", and the present invention can be more effective than the conventional structure, so it is also "progressive". It fully complies with the requirements of China's patent law on application requirements for invention patents. The patent is filed in accordance with the law. Apply, and please review and affirm it soon.

(10): Stem

(12): Inlet

(15): External lead thread

(20): Outer catheter

(22): Small diameter stoma section

(30): Inner catheter

(32): Inner sleeve

(33): External sleeve

(40): adjustment sleeve

Claims (5)

A high-flow two-stage gas nozzle, which is installed on a rim to provide inflation. It includes: a valve stem with an outer anti-leak ring set on the outer peripheral side of one end and an air inlet axially concaved inward from the opposite end The valve stem has an air inlet hole radially penetrating the air inlet, the valve stem has an outer ring groove adjacent to the air inlet hole and an outer guide sleeve that sets the outer ring groove, and the outer circumference of the outer guide sleeve The side has at least one outer guide part protruding, the valve stem is additionally provided with an outer guide thread located on the outer peripheral side of the opening end of the air inlet; an outer pipe has a large diameter hole section and a small diameter air hole section that communicate with each other, And an inner step located between the large-diameter hole section and the small-diameter pore section, the inner hole wall of the small-diameter pore section has an inner guide groove corresponding to the outer guide part, and the small-diameter pore section sets the valve stem And the inner guide groove sets the outer guide part, and the outer guide thread extends out of the small diameter air hole section; an inner catheter has an outer set of threads on the outer tube wall and an inner sleeve set at one end, the inner The tube passes through the assembly hole of the rim and extends into the outer tube. The outer threaded screw sets the large-diameter hole section, and the outer threaded screw drives the inner sleeve of the inner tube to move axially and is connected to the end of the large-diameter hole section. Clamped against the rim; and an adjusting sleeve has an inner guide thread located on the inner wall, the inner guide thread of the adjustment sleeve and the outer guide thread screw set protruding from the small diameter air hole section, and the inner guide thread drives the outer lead of the valve stem The anti-leak ring moves axially to move away from or force against the inner step; wherein, the inner guide thread drives the outer anti-leak ring of the valve stem and the inner step to form a two-stage distance away from the inner step to form a large and small gap. The two-stage control of the inlet and outlet of the air hole and the small diameter air hole section, and the outer stop ring of the valve stem and the inner step are forced to close the air flow of the air inlet hole. The high-flow two-stage gas nozzle described in claim 1 further has an outer sleeve of the inner tube of the set and abuts between the end of the large-diameter hole section of the outer tube and the rim. The high-flow two-stage gas nozzle described in claim 1 further has an outer sleeve of the inner tube of the set and abuts between the end of the large-diameter hole section of the outer tube and the rim. The high-flow two-stage gas nozzle according to claim 3, wherein the inner set of threads of the outer tube spirally advance and retreat to the outer set of threads of the inner tube and drive the outer sleeve to move axially for a distance of 8MM. The high-flow two-stage gas nozzle according to any one of claims 1 to 4, wherein the outer tube has an outer thread section located on the outer periphery of the small diameter air hole section, and the outer thread section screw sets an outer cover for closing the inlet Stoma, small diameter stomata section.

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