KR20230055175A - Valve for air injection that diffuses the sealant - Google Patents

Abstract

Disclosed is a sealant diffusion and spray-type air injection valve. The sealant diffusion and spray-type air injection valve according to the present invention includes: a main tube body arranged to penetrate the rim of a wheel and connecting the outside and an inner tube of a tire; a valve core installed at an outer opening of the main tube body and opening and closing the main tube body according to a pushing operation of an operating pin; a main casing installed on the circumference of the main tube body for the main tube body to penetrate the rim and be fixed to the rim; and a nozzle unit rotatably installed at an inner opening of the main tube body and spraying a liquid sealant pumped to the main tube body through the valve core to the inner tube while rotating. According to the present invention, the nozzle unit rotatably installed in the inner opening of the main tube body operates to widely and evenly spray the liquid sealant pumped to the main tube body through the valve core to the inner tube. Therefore, the sealant can effectively permeate into a puncture part so that an outflow of air is rapidly prevented.

Description

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

The present invention relates to a sealant diffusion injection type air injection valve, and more particularly, the sealant pressure-supplied through an air injection valve installed on a wheel is sprayed widely and uniformly into the lumen of a tire so that the sealant can be rapidly penetrated into a puncture site. It relates to a sealant diffusion injection type air injection valve.

A pneumatic tire for a vehicle is fastened to a rim, which is a rim of a wheel, to absorb shock transmitted from the road surface during driving, and to form frictional force with respect to the road surface during driving, braking, or turning, thereby preventing slip of the vehicle.

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

However, since the tire encounters various unexpected road surface environments while driving, a puncture accident in which the tire is penetrated or damaged by a sharp foreign substance dropped on the road surface or air is lost due to poor fastening of the tire often occurs.

Such a puncture accident has conventionally been treated as an emergency by removing the damaged tire and wheel from the vehicle and then replacing the wheel tire stored in the trunk when the vehicle is shipped.

Due to these difficulties, recently, when the outflow of tire air pressure is confirmed through a popularized air pressure display device without replacing the tire wheel as described above, liquid sealant filling the damaged part inside the tire is injected into the lumen through the air injection valve. The puncture repair kit is installed as a basic vehicle item to respond to puncture accidents.

The above puncture repair kit consists of a container filled with sealant liquid and a compressor that sends the sealant liquid to the air injection valve at a constant pressure through an injection line passing through the container. It has the advantage of helping to increase the weight of the vehicle and reduce the weight of the vehicle.

However, in the case of a prior art such as a puncture repair kit, as well as a cap for an air injection valve having a sealant holding portion in which a sealant for sealing a puncture part of a tire is stored (Korean Patent Publication No. 10-2019-0127001), mounted on a wheel Since the air injection valve is used as it is, the sealant cannot be sprayed widely and uniformly into the lumen and is ejected only in one direction, so it is difficult to apply the sealant to penetrate quickly into the puncture site.

Korean Patent Publication No. 10-2019-0127001 (published date: November 13, 2019)

An object of the present invention, in order to solve the above-described problems, is a sealant diffusion spray type air that can be applied so that the sealant is quickly penetrated into the puncture site by spraying a sealant provided from the outside at a predetermined pressure into the tire lumen in a wide and uniform manner. To provide an injection valve.

The above object is disposed to pass through the rim of the wheel to communicate the inner cavity of the tire with the outside; a valve core installed in an outer opening of the main body to open and close the main body according to the pressing operation of the operating pin; a main casing provided around the main body so that the main body is penetrated and fixed to the rim; and a nozzle part rotatably installed in the inner opening of the main body and rotationally spraying the liquid sealant pressure-supplied to the main body through the valve core into the lumen. .

The nozzle unit may include a rotating tube body arranged to communicate with the inner opening and rotating; A plurality of injection nozzles radially branching from the rotating body; and 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-shaped injection hole bent in one direction may be formed so that the rotational thrust by the sealant injected into the lumen is more smoothly transmitted to the rotating body and the injection of a wide and strong sealant can be performed. there is.

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

A spiral protrusion may be further formed on an inner circumferential surface of the main body so that the sealant pressure-supplied through the valve core is spirally rotated and guided to the injection nozzle.

According to the present invention, a valve core installed in the outer opening of the main body communicating with the outside of the tire and opening and closing the main body according to the pressing operation 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 in the inner opening of the main body operates to rotate and spray the liquid sealant pressure-supplied to the main body through the valve core into the lumen in a wide and uniform manner, so that the sealant can effectively penetrate into the puncture site. Thus, air leakage can be quickly prevented.

1 is a perspective view of a sealant diffusion injection type air injection valve according to an embodiment of the present invention.
Figure 2 is an exploded view of Figure 1;
Figures 3a and 3b is a state of use and operating state based on the cross-sectional view taken along the cutting line AA of Figure 1.
4 is a view showing a state in which the air injection valve of FIG. 1 is connected to a puncture repair kit.
FIG. 5 is a view showing an application range of sealant sprayed through the air injection valve of FIG. 1 connected to the puncture repair kit of FIG. 4 .

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

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

Top (top), bottom (bottom), left and right (side or side), front (front, front), back (back, back), etc., which refer to directions in the description and claims of the invention, etc., are not intended to limit the use of rights. For convenience of description, the relative position between the drawings and configurations is determined as a standard, and the three axes may be rotated and changed to correspond to each other, and this is followed unless otherwise specifically defined.

In the sealant diffusion injection type air injection valve 100 according to the present invention, the liquid sealant S pressure-fed through the nozzle unit 140 rotatably installed in the inner opening 112b of the main body 110 is supplied to the tire 10 It is an invention devised to achieve effective penetration of the sealant (S) into the puncture site by wide and uniform rotary spraying into the lumen 12 of the.

Here, the pressure delivery of the liquid sealant (S), that is, delivery at a predetermined pressure, is performed by pressurizing the sealant container 34 with the compressor 32 after fastening the puncture repair kit 30 as shown in FIG. 4 to the present invention. Or, the sealant (S) may be made by pressing the container with an external force of the user after fastening a commercially available product stored in the container to the present invention.

As described above, in order to concretely implement a wide and uniform non-powered rotary injection operation of the pressure-transferred sealant (S), 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 in, 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 configuration described above will be described in detail.

First, the main body 110 is a component that is arranged to penetrate the rim 22 of the wheel 20 and communicates the lumen 12 of the tire 10 and the outside, and is a metal or synthetic resin with high resistance to pressure and chemicals It may be made by making the back into a hollow tubular body.

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

In addition, on the outer circumferential surface of the upper end of the main body 110, a sealing cap (not shown) for preventing the inflow of foreign substances, an injection line 36 of the puncture repair kit 30 or an injection port of a commercial product in which the sealant S is stored in a container, respectively A screw thread can be formed which can be screwed into.

On the other hand, on the inner circumferential surface of the main body 110, a spiral protrusion 114 protruding in a spiral shape may be formed, which is installed in the outer opening 112a and pressurized through the valve core 120 to be described later (S) After flowing in a spiral rotation, it is smoothly guided to the injection nozzle 144 toward the inner opening 112b and injected into the lumen 12 of the tire 10.

As the above-described main body 110 is disposed to penetrate the rim 22 of the wheel 20, the injection line 36 of the puncture repair kit 30 or the sealant S is a sealant pumped from a commercial product stored in a container (S) can be introduced 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 above-described main body 110 to open and close the main body 110 according to the pressing operation of the operating pin 122, FIG. 3a and 3b, it may be composed of a body 124, an actuating pin 122 formed with first and second flanges 122a and 122b, a spring 126, and the like.

Here, the body 124 is a tubular component that functions as a flow path so that the sealant S (or air) pressured through the upper and lower openings flows in and out, and is concentric with the main body 110 described above. and may be fitted or screwed into the outer opening 112a.

The actuating pin 122 is a rod-shaped component that is movable up and down inside the body 124 and blocks or allows the flow of sealant S (or air) through the body 124, and is extended 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 blocks the inflow and outflow of the sealant S (or air) through the body 124 by closing the upper end opening of the body 124 when the operating pin 122 moves upward, while lowering By performing an operation of opening the top opening of the body 124 during movement, the sealant S (or air) can flow in and out of the body 124 .

In addition, the second flange 122b blocks the inflow and outflow of the sealant S (or air) through the body 124 by closing the lower opening of the body 124 when the operating pin 122 moves upward, while moving downward. By performing an operation of opening the lower 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 for the upper and lower openings of the body 124 are simultaneously performed according to the vertical movement of the operating pin 122.

The spring 126 is elastically deformed by the operating pin 122 moving downward according to the fastening of the injection line 36 or the like to the main body 110, and the injection line 36 or the like in the main body 110. It is a component that provides an elastic restoring force for moving the actuating pin 122 upward when the fastening is released.

The elastic deformation and elastic restoration of the spring 126 can be achieved by installing such that one end is supported by the first flange 122a and the other end is supported by the inner lower end of the body 124 inside the body 124. .

As described above, due to the elastic restoration operation by the spring 126, the operation pin 122, the inflow and outflow of the sealant (S) (or air) through the body 124 in a state where the injection line 36 and the like are not fastened. will perform the blocking operation.

The main casing 130 is a component formed around the main body 110 to prevent damage to the above-described main body 110 and to firmly penetrate and fix the main body 110 to the rim 22, the rim 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).

The main casing 130 may be made of a synthetic resin such as polycarbonate having excellent impact resistance, heat resistance, cold resistance, and abrasion resistance, and urethane having 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, and is a subject body after passing through the valve core 120 described above. It is composed of a structure in which the liquid sealant (S) pressure-supplied in 110 is sprayed toward the lumen 12 of the tire 10 in a wide range rather than in a narrow direction.

That is, if the nozzle unit 140 is rotatably installed in the inner opening 112b of the main body 110 and can widely spray the sealant S delivered at a predetermined pressure to the surroundings, it is particularly Not limited.

However, the nozzle unit 140 according to the embodiment of the present invention is implemented as 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, FIG. As shown in 3a and 3b, etc., it is made including a rotating tube body 142, a plurality of injection nozzles 144 and a lower casing 146, and the like.

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

At this time, the rotary tube body 142 may be rotatably provided via a bearing 143 (or bushing) provided in a lower casing 146 to be described later coupled to the above-described main casing 130.

Specifically, the bearing 143 (or bushing) is installed so that the outer ring (outer circumferential surface) is fixed to the inside of the lower casing 146, and the rotating tube body 142 is inserted into the inner ring (inner circumferential surface) of the bearing 143. By being fixed, The rotating tube body 142 is capable of relative rotation with respect to the lower casing 146 .

As shown in FIG. 3B, the rotary tube body 142 transmits the sealant S passing through the valve core 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 by the rotational thrust generated in the process of being injected into the lumen 12 of the tire 10.

The injection nozzle 144 is a tubular component that directly injects the sealant S, which is radially branched from the aforementioned rotating tubular body 142 and sent by pressure, into the lumen 12 of the tire 10, FIG. 3B As shown in the back, it may be inclined downward from the above-described rotary tube body 142.

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

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

The injection hole 145 of this structure transmits the rotational thrust by the sealant S injected into the lumen 12 of the tire 10 more smoothly to the rotating body 142, and sprays the wide and strong sealant S. is to make it possible

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

At this time, the reason why the injection nozzle 144 is made of the above-described soft material is that, as shown in FIG. This is so that the injection nozzle 144 rotating together is opened by centrifugal force.

Due to this, the injection nozzle 144 can apply the sealant S to the lumen 12 of the tire 10 in a wider range.

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

Of course, a predetermined 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 described above, according to the air injection valve 100 according to the present invention, the sealant (S) through the nozzle unit 140 is not in the narrow area of the lumen 12 of the tire 10, but inside the tire 10. By widely and uniformly rotating spraying to the area SA corresponding to the inner liner and the sidewall, effective penetration of the sealant S into the puncture site can be achieved, and furthermore, effective and rapid puncture repair can be achieved.

In the foregoing, although specific embodiments of the present invention have been described and shown, the present invention is not limited to the described embodiments, and it is common knowledge in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. It is self-evident to those who have Therefore, such modifications or variations should not be individually understood from the technical spirit or viewpoint of the present invention, and modified embodiments should fall within the scope of the claims of the present invention.

10: tire
12 lumen
20: wheel
22: Rim
30: Puncture Repair Kit
32: Compressor
34: sealant container
36: injection line
S: sealant
100: sealant diffusion injection type air injection valve
110: Subject
112a: outer opening
112b: inner opening
114: spiral projection
120: valve core
122: operating pin
122a, 122b: first and second flanges
124: body
126: spring
130: main casing
132: fastening groove
140: nozzle part
141: sealing member
142: rotating tube
143: bearing
144: injection nozzle
145: spray hole
SA: sealant injection area
146: lower casing

Claims (5)

a main body that is disposed to pass through the rim of the wheel and communicates the inner cavity of the tire with the outside;
a valve core installed in an outer opening of the main body to open and close the main body according to the pressing operation of the operating pin;
a main casing provided around the main body so that the main body is penetrated and fixed to the rim; and
and a nozzle part rotatably installed in the inner opening of the main body and rotationally spraying the liquid sealant pressure-supplied to the main body through the valve core into the lumen. According to claim 1,
The nozzle part,
a rotating body arranged to communicate with the inner opening and rotating;
A plurality of injection nozzles radially branching from the rotating body; and
A sealant diffusion injection type air injection valve comprising a lower casing rotatably coupled to the rotary tube body and coupled to the main casing. According to claim 2,
At the end of the injection nozzle,
In order to more smoothly transmit the rotational thrust by the sealant sprayed into the lumen to the rotating body and to spray a wide and strong sealant, a flat straight spray hole curved in one direction is formed Sealant diffusion spray type air injection valve. According to claim 2,
The injection nozzle,
It is inclined downward from the rotating tube body,
A sealant diffusion injection 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 body. According to claim 2,
On the inner circumferential surface of the subject body,
The sealant diffusion injection type air injection valve, characterized in that a spiral protrusion is further formed so that the sealant pressure-supplied through the valve core spirally rotates and flows and is guided to the injection nozzle.

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