KR102602879B1 - Valve for air injection that diffuses the sealant - Google Patents

Abstract

A sealant diffusion spray type air injection valve is disclosed. The sealant diffusion injection type air injection valve according to the present invention includes a main body disposed to penetrate the rim of the wheel and communicating with the inside of the tire and the outside; a valve core installed at an outer opening of the main body to open and close the main body according to a pressing action of an operating pin; a main casing provided around the main body so that the main body is fixed through the rim; and a nozzle unit rotatably installed in the inner opening of the main body to rotate and spray the liquid sealant pressured into the main body through the valve core into the lumen. According to the present invention, the nozzle unit rotatably installed at the inner opening of the main body operates to rotate and spray the liquid sealant pressured into the main body through the valve core widely and uniformly into the lumen, so that the sealant can effectively penetrate into the puncture site. This allows air leakage to be quickly prevented.

Description

Sealant diffusion spray type air injection valve {VALVE FOR AIR INJECTION THAT DIFFUSES THE SEALANT}

The present invention relates to a sealant diffusion spray air injection valve, and more specifically, to spray the sealant pressured through the air injection valve installed on the wheel widely and uniformly into the lumen of the tire so that the sealant can be applied to quickly penetrate into the puncture area. This is about the sealant diffusion spray type air injection valve.

Pneumatic tires for vehicles are an essential component that is fastened to the rim, which is the rim of a wheel, and prevents the vehicle from slipping by absorbing shock transmitted from the road surface while driving and creating friction against the road surface when driving, braking, or turning.

Among these tires, pneumatic tires need to be managed so that an appropriate amount of air injected into the lumen (internal space) maintains a constant pressure.

However, since tires come into contact with various unexpected road environments while driving, puncture accidents often occur where tires are pierced or damaged by sharp foreign substances that fall on the road or air is lost due to poor fastening of the tires.

Such puncture accidents were conventionally treated as an emergency by removing the damaged tires and wheels from the vehicle and replacing them with wheel tires stored in the trunk when the vehicle was shipped, but this replacement work was difficult for even adult men to do.

Due to these difficulties, recently, when leakage of tire air pressure is confirmed through a popular air pressure display device without replacing the tire wheel as above, liquid sealant to fill the damaged area inside the tire is injected into the lumen through an air injection valve. A puncture repair kit is installed as a standard vehicle item to respond to puncture accidents.

The above puncture repair kit consists of a container filled with sealant fluid and a compressor that delivers the sealant fluid to the air injection valve at a constant pressure through an injection line passing through the container, allowing for quick and easy response to puncture accidents and saving trunk space. There is an advantage in increasing the weight of the vehicle and helping to reduce the weight of the vehicle.

However, in the case of prior art, such as a puncture repair kit as well as a cap for an air injection valve (Korean Patent Publication No. 10-2019-0127001) having a sealant holder in which the sealant for sealing the puncture area of the tire is stored, the puncture repair kit is installed on the wheel. Since the air injection valve is used as is, the sealant is not sprayed widely and uniformly into the lumen, but only sprays in one direction, making it difficult to apply the sealant to quickly penetrate into the puncture area.

Republic of Korea Patent Publication No. 10-2019-0127001 (Publication Date: November 13, 2019)

The purpose of the present invention is to solve the above-described problem by spraying the sealant provided from the outside at a predetermined pressure widely and uniformly into the lumen of the tire to quickly penetrate the puncture area. An injection valve is provided.

The above object includes: a main body disposed to penetrate the rim of the wheel to communicate with the inside of the tire and the outside; a valve core installed at an outer opening of the main body to open and close the main body according to a pressing action of an operating pin; a main casing provided around the main body so that the main body is fixed through the rim; and a nozzle unit rotatably installed at the inner opening of the main body to rotate and spray the liquid sealant pressured into the main body through the valve core into the lumen. This is achieved by a sealant diffusion spray type air injection valve. .

The nozzle unit includes a rotating tube disposed in communication with the inner opening and rotating; a plurality of spray nozzles branching radially from the rotating tube; And it may include a lower casing rotatably coupled to the rotating tube body and coupled to the main casing.

At the end of the injection nozzle, a flat straight injection hole curved in one direction may be formed in order to more smoothly transmit the rotational thrust caused by the sealant sprayed into the lumen to the rotating tube and to enable wide and strong spraying of the sealant. there is.

The spray nozzle is inclined downward from the rotating tube, and may be made of a soft material that can be freely bent according to the rotation of the rotating tube.

On the inner peripheral surface of the main body, a spiral protrusion may be further formed so that the sealant pressured through the valve core flows in a spiral rotation and is guided to the injection nozzle.

According to the present invention, a valve core is installed at the outer opening of the main body that communicates the inside of the tire and the outside and opens and closes the main body according to the pressing action of the operating pin, and a valve core provided around the main body so that the main body is penetrated and fixed to the rim. The main casing is provided, and the nozzle unit rotatably installed at the inner opening of the main body operates to rotate and spray the liquid sealant pressured into the main body through the valve core widely and uniformly into the lumen, allowing the sealant to effectively penetrate into the puncture area. This allows air leakage to be quickly prevented.

Figure 1 is a perspective view of a sealant diffusion spray type air injection valve according to an embodiment of the present invention.
Figure 2 is an exploded view of Figure 1.
FIGS. 3A and 3B are usage and operating state diagrams based on a cross-sectional view taken along the cutting line AA of FIG. 1.
Figure 4 is a diagram showing the air injection valve of Figure 1 connected to the puncture repair kit.
Figure 5 is a diagram showing the application range of the sealant sprayed through the air injection valve of Figure 1 connected to the puncture repair kit of Figure 4.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, in describing the present invention, descriptions of already known functions or configurations will be omitted to make the gist of the present invention clear.

Figure 1 is a perspective view of a sealant diffusion spray type air injection valve according to an embodiment of the present invention, Figure 2 is an exploded view of Figure 1, and Figures 3A and 3B are a use state based on a cross-sectional view taken along the cutting line A-A of Figure 1. and an operating state diagram, Figure 4 is a diagram showing a state in which the air injection valve of Figure 1 is connected to the puncture repair kit, and Figure 5 is a diagram showing the application of sealant sprayed through the air injection valve of Figure 1 connected to the puncture repair kit of Figure 4. This is a drawing showing the scope.

In the description and claims of the invention, directions such as up (up), down (bottom), left and right (side or side), front (front, front), back (belly, back), etc. are not intended to limit rights. For convenience of explanation, it is determined based on the relative positions between drawings and configurations, and the three axes can be rotated and changed in correspondence with each other, and this will be followed unless specifically limited.

The sealant diffusion spray air injection valve 100 according to the present invention is configured to inject liquid sealant S pressure-injected through a nozzle unit 140 rotatably installed in the inner opening 112b of the main body 110 to the tire 10. This is an invention designed to ensure effective penetration of the sealant (S) into the puncture area by rotating and spraying widely and uniformly into the lumen (12) of the puncture area.

Here, the liquid sealant (S) is pressure-fed, that is, delivered at a predetermined pressure, by fastening the puncture repair kit 30 as shown in FIG. 4 to the present invention and then pressurizing the sealant container 34 with the compressor 32. Alternatively, the sealant (S) may be made by fastening a commercial product stored in a container to the present invention and then compressing the container with the user's external force.

In order to specifically implement a wide and uniform non-powered rotary injection operation of the pressure-fed sealant (S) as described above, the sealant diffusion injection type air injection valve 100 according to an embodiment of the present invention is shown in FIGS. 1 to 3B. As shown, it may be configured to include a main body 110, a valve core 120, a main casing 130, and a nozzle unit 140.

Hereinafter, each of the above-described configurations will be described in detail.

First, the main body 110 is a component disposed to penetrate the rim 22 of the wheel 20 and communicates the inner cavity 12 of the tire 10 with the outside, and is made of metal or synthetic resin with high pressure resistance and chemical resistance. The back can be made of a hollow tube body.

With reference to FIG. 3A, the main body 110 may have an outer opening 112a exposed to the outside located at the upper end, and an inner opening 112b located in the lumen 12 of the tire 10 may be located at the lower end. .

And on the outer peripheral surface of the upper part of the main body 110, there is a sealing cap (not shown) to prevent the inflow of foreign substances, an injection line 36 of the puncture repair kit 30, or an injection port of a commercial product storing the sealant (S) in a container, respectively. A thread capable of being screwed into place may be formed.

Meanwhile, a spiral protrusion 114 may be formed on the inner peripheral surface of the main body 110, which protrudes in the form of a spiral, which is the sealant (S) pressured through the valve core 120, which will be described later, installed in the outer opening 112a. This is to ensure that after flowing in a spiral rotation, it is smoothly guided to the spray nozzle 144 on the inner opening 112b and sprayed into the lumen 12 of the tire 10.

By arranging the above-described main body 110 to penetrate the rim 22 of the wheel 20, the injection line 36 of the puncture repair kit 30 or the sealant S is pressure-transported from a commercial product stored in a container. (S) can flow into the lumen 12 of the tire 10 from the outside.

The valve core 120 is a component installed in the outer opening 112a of the main body 110 described above and performs the operation of opening and closing the main body 110 according to the pressing operation of the operating pin 122. As shown in Figures 3a and 3b, it may be composed of a body 124, an operating pin 122 on which first and second flanges 122a and 122b are formed, and a spring 126.

Here, the body 124 is a tubular-shaped component that performs a flow path function to allow the sealant (S) (or air) pressured through the upper and lower openings to flow in and out, and is concentric with the main body 110 described above. It can be fitted or screwed into the outer opening (112a).

The operating pin 122 is a rod-shaped component that can move up and down inside the body 124 and blocks or allows the flow of sealant (S) (or air) through the body 124, and is expanded at the upper end. It may be composed of a first flange (122a) and a second flange (122b) extended at the lower end.

At this time, the first flange 122a closes the upper opening of the body 124 when the operating pin 122 moves upward, blocking the inflow and outflow of the sealant S (or air) through the body 124, and the downward By performing an operation of opening the upper opening of the body 124 during movement, the sealant S (or air) can flow in and out of the body 124.

And the second flange 122b closes the lower opening of the body 124 when the operating pin 122 moves upward, blocking the inflow and outflow of the sealant S (or air) through the body 124, while when the operating pin 122 moves downward. By performing an operation of opening the bottom opening of the body 124, the sealant S (or air) can flow in and out of the body 124.

As described above, the opening and closing operations of the first flange 122a and the second flange 122b with respect to the upper and lower openings of the body 124 are configured to be performed simultaneously according to the vertical movement of the operating pin 122.

The spring 126 is elastically deformed by the operating pin 122, which moves downward as the injection line 36, etc., is fastened to the main body 110, and is connected to the main body 110 by the injection line 36, etc. This is a component that provides an elastic restoring force to move the operating pin 122 upward when the fastening is released.

This elastic deformation and elastic recovery of the spring 126 can be achieved by installing it so that one end is supported on the first flange 122a and the other end is supported on the inner lower end of the body 124 inside the body 124. .

Due to the elastic recovery operation by the spring 126 as described above, the operating pin 122 allows the inflow and outflow of sealant (S) (or air) through the body 124 in a state where the injection line 36, etc. is not fastened. The operation of blocking is performed.

The main casing 130 is a component formed around the main body 110 to prevent damage to the main body 110 described above and to firmly penetrate and fix the main body 110 to the rim 22. A fastening groove 132 may be formed on one side of the outer circumferential surface for a firm fit corresponding to the fastening hole formed through (22).

This main casing 130 can be made of synthetic resins such as polycarbonate, which has excellent impact resistance, heat resistance, cold resistance, and abrasion resistance, and urethane, which has excellent oil resistance, high elasticity, cold resistance, earthquake resistance, and abrasion resistance.

The nozzle unit 140 is a component provided to allow the sealant (S) to effectively penetrate from the lumen 12 of the tire 10 to the puncture site. After passing through the above-described valve core 120, the main body The liquid sealant (S) pressured to (110) is rotated and sprayed in a wide range rather than in one narrow direction toward the lumen (12) of the tire (10).

That is, the nozzle unit 140 is rotatably installed in the inner opening 112b of the main body 110, and is specially designed if it has a structure and method capable of spraying the sealant S delivered at a predetermined pressure widely to the surrounding area. Not limited.

However, the nozzle unit 140 according to an embodiment of the present invention is designed to implement a non-powered rotation structure using the kinetic energy of the sealant (S) flowing at a predetermined pressure as a power source without using a separate external power source. As shown in Figures 3a and 3b, it includes a rotating tube 142, a plurality of injection nozzles 144, and a lower casing 146.

The rotating tube 142 is a rotating component arranged to communicate with the inner opening 112b of the main body 110. With reference to FIG. 3A, the upper end communicates with the inner opening 112b of the main body 110. , the lower part may be in the shape of a closed tube.

At this time, the rotating tube 142 may be rotatable via a bearing 143 (or bushing) provided in the lower casing 146, which will be described later, coupled to the main casing 130 described above.

Specifically, the bearing 143 (or bushing) is installed so that the outer ring (outer peripheral surface) is fixed to the inside of the lower casing 146, and the rotating tube 142 is inserted and fixed to the inner ring (inner peripheral surface) of the bearing 143, The rotating tube body 142 can rotate relative to the lower casing 146.

As shown in FIG. 3b, the rotating tube 142 allows the sealant S that has passed through the valve core described above to be delivered from the inner opening 112b of the main body 110 to a plurality of injection nozzles 144 to be described later. ) and rotates without power due to the rotational thrust generated in the process of being sprayed into the lumen 12 of the tire 10.

The injection nozzle 144 is a tube-shaped component that branches out in a plurality radially from the above-described rotating tube 142 and sprays the pressurized sealant S directly into the lumen 12 of the tire 10, as shown in Figure 3b. As shown, etc., it may be inclined downward from the above-described rotating tube 142.

Due to the spray nozzle 144 inclined downward in this way, the sealant S can naturally flow from the rotating tube 142 to the spray nozzle 144 and be sprayed into the lumen 12 of the tire 10.

At the end of the injection nozzle 144, as shown in FIG. 3B, a flat, straight injection hole 145 curved in one direction may be formed.

The injection hole 145 of this structure allows the rotational thrust caused by the sealant (S) sprayed into the lumen 12 of the tire 10 to be transmitted more smoothly to the rotating tube 142, and sprays the wide and strong sealant (S). This is to ensure that this can be achieved.

The injection nozzle 144 as described above may be made of a soft material that can be freely bent, such as silicone or synthetic rubber.

At this time, the reason why the spray nozzle 144 is made of the soft material described above is that, as shown in FIG. 5, the sealant (S) sprayed into the lumen 12 of the tire 10 causes the rotary tube 142 and This is to allow the injection nozzles 144, which rotate together, to spread apart due to centrifugal force.

Because of this, the spray nozzle 144 can apply the sealant S to the lumen 12 of the tire 10 over a wider range.

The lower casing 146 is a component rotatably coupled to the above-described rotating tube 142 and coupled to the above-described main casing 130, and is formed inside the main casing 130 as shown in FIG. 3A. It may be configured to be screwed to a female thread.

Of course, a sealing member 141 may be provided inside the lower casing 146 to form a sealing structure with the main body 110 and the main casing 130.

As discussed above, according to the air injection valve 100 according to the present invention, the sealant (S) is supplied through the nozzle portion 140 not to the narrow area of the lumen 12 of the tire 10 but to the inside of the tire 10. By rotating and spraying widely and uniformly to the area (SA) corresponding to the inner liner and the sidewall, effective penetration of the sealant (S) into the puncture area can be achieved, further enabling effective and rapid puncture repair.

Although specific embodiments of the present invention have been described and shown above, it is known in the art that the present invention is not limited to the described embodiments, and that various modifications and changes can be made without departing from the spirit and scope of the present invention. This is self-evident to those who have it. Accordingly, such modifications or variations should not be understood individually from the technical idea or viewpoint of the present invention, and the modified embodiments should be regarded as falling within the scope of the claims of the present invention.

10: tires
12: lumen
20: wheel
22: Rim
30: Puncture repair kit
32: Compressor
34: Sealant container
36: injection line
S: Sealant
100: Sealant diffusion spray type air injection valve
110: Subject
112a: outer opening
112b: inner opening
114: Spiral projection
120: valve core
122: operating pin
122a, 122b: 1st and 2nd flanges
124: body
126: spring
130: Main casing
132: Fastening groove
140: nozzle part
141: Sealing member
142: Rotating tube body
143: Bearing
144: Spray nozzle
145: injection hole
SA: Sealant spray area
146: Lower casing

Claims (5)

A main body disposed to penetrate the rim of the wheel to communicate with the inside of the tire and the outside of the tire; a valve core installed at an outer opening of the main body to open and close the main body according to a pressing action of an operating pin; a main casing provided around the main body so that the main body is fixed through the rim; and a nozzle unit rotatably installed in the inner opening of the main body to rotate and spray the liquid sealant pressured into the main body through the valve core into the lumen,
The nozzle part,
a rotating tube arranged to communicate with the inner opening and rotating; a plurality of spray nozzles branching radially from the rotating tube; And a lower casing rotatably coupled to the rotating tube body and coupled to the main casing,
On the inner peripheral surface of the subject body,
A sealant diffusion injection type air injection valve, characterized in that a spiral protrusion is further formed so that the sealant pumped through the valve core flows in a spiral rotation and is guided to the injection nozzle. delete According to paragraph 1,
At the end of the injection nozzle,
Sealant diffusion spray type air, characterized in that a flat straight injection hole curved in one direction is formed in order to ensure that the rotational thrust caused by the sealant sprayed into the lumen is more smoothly transmitted to the rotating tube and that a wide and strong sealant is sprayed. Injection valve. According to paragraph 1,
The spray nozzle is,
It is inclined downward from the rotating tube,
A sealant diffusion spray type air injection valve, characterized in that it is made of a soft material that can be freely bent according to the rotation of the rotating tube. delete

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