KR200364764Y1 - A check valve for a footwear of line-contact type - Google Patents

Abstract

The present invention relates to a check valve for shoes, and more particularly, a cylindrical body formed by penetrating the air inlet, and an outlet for discharging air on one side and the body to the other side opened. It relates to a cylindrical cap coupled to, and a blocking membrane interposed between the inlet and the outlet relates to a shoe check valve for allowing air flow in only one direction.

The present invention implements the contact method of the barrier membrane in a line-contact manner rather than the conventional face-contact method, so that friction noise does not occur during operation. Reliable opening and closing operation is possible in the posture, and the shape of the barrier film is formed in the shape of convex hemispheres or horns, and the opposite side is concave, so the opening and closing efficiency is high, and the barrier film is formed with different hardness. By increasing and decreasing the contact pressure of the barrier using the air pressure, that is, the critical pressure (critical pressure) can be diversified, and the degree of ventilation and cushioning of the shoe can also be reduced.

Description

A check valve for a footwear of line-contact type}

The present invention relates to a shoe check valve, and more particularly, a cylindrical body formed by penetrating the inlet for inlet air, and an outlet for discharging air on one side of the cylindrical to couple to the body to the other side open It includes a cap and a blocking film interposed between the inlet and the outlet and relates to a shoe check valve of the line contact method for passing the flow of air in one direction, that is, only the inlet to the outlet and block in the reverse direction.

Check valve is a kind of directional control valve to control the flow direction of the fluid is widely used in various fields, and is also used as a major component in the shoe to perform functions such as ventilation or cushioning.

However, the conventional check valve is a face-contact method in which the contact surface between the barrier layer and the barrier layer that controls the flow of air is in contact with the surface. Therefore, when a small amount of air is discharged, the gap between the barrier membrane and the ground portion is closed. It is relatively narrow and its play is uneven or unstable, and friction noise due to the shaking of the blocking film is inevitably generated.

In addition, when foreign matter adheres to the ground part or the blocking film of the conventional check valve or becomes contaminated, or the ground part or the blocking film itself is damaged, a local gap is generated, thereby losing much of its original function as a direction control valve, thereby reducing the blocking efficiency.

In addition, conventional check valves use various types of cut-off membranes such as plates or spheres. While the cut-off membranes are independently housed in the valves and the overall and structural postures of the valves are constant, dynamic checks such as walking or running while wearing them are performed. Due to the high frequency of the shoes placed in the in- creased state, the complexed shoes have an arbitrary dynamic posture, so that the contact state between the barrier film and the ground portion is not kept constant, thereby reducing the control function. That is, in the conventional check valve, since the blocking film is formed separately and accommodated in the valve, a gap with the ground part is inevitably generated due to the weight of the blocking film or the dynamic shaking of the shoe in an arbitrary posture, thus losing its function. Will be.

The present invention has been made to solve the problems of the conventional check valve used in the shoe as described above, excluding the conventional surface contact method and adopting a line-contact method, friction noise during operation This does not occur, and to provide a shoe check valve of the line contact method that performs the original function smoothly without being affected by contamination or damage.

In addition, the present invention is to provide a shoe check valve of the line contact method of high reliability by coupling the blocking film in the valve to maintain the opening and closing posture in any dynamic posture.

In addition, the present invention is to provide a shoe check valve of the line contact method with a high opening and closing efficiency by forming a blocking film in the convex hemisphere or horn shape to the inlet side and concave on the opposite side.

In addition, the present invention is formed of a material having a variety of hardness (hardness) material and by adding a compression spring having a variety of stiffness to increase or decrease the contact pressure of the barrier film critical pressure (critical pressure) value required for opening the air required for opening To provide a shoe check valve of the line contact method that can be diversified and the degree of ventilation and cushioning of the shoes can also be added or subtracted.

1 is a perspective view according to a first embodiment of the present invention.

Figure 2 is a front sectional view according to the first embodiment of the present invention.

Figure 3 is a front sectional view according to a second embodiment of the present invention.

Figure 4 is a front sectional view according to a third embodiment of the present invention.

5 is a use state according to the first embodiment of the present invention.

<Description of the code used in the main part of the drawing>

V: check valve 10: body

12: entrance 14: projection

20: cap 22: exit

24: coupling groove 30: breaker

32: blocking film 34: bonding tip

The present invention is a conventional shoe check valve having an inlet and an outlet and a blocking membrane, the cylindrical body formed by passing through the inlet for entering air, and the outlet for discharging air to one side is formed therein, A coupling groove for accommodating the blocking membrane is provided, and a cylindrical cap coupled to the body to the other side of the blocking membrane and a coupling tip fitted to the coupling groove on one side are coupled to the cap and behind the inlet of the body. It is characterized in that it is provided with a blocker for line-contact with the formed corner (line-contact) on the other side to pass the flow of air only in one direction, that is, the inlet to the outlet and to block in the reverse direction.

In addition, the present invention is provided between the breaker and the cap, and provided with a compression spring for generating a pre-pressure between the rear edge of the inlet, which is a ground portion in contact with the blocking film, the threshold of air required for opening It is characterized in that the pressure (critical pressure) value is added or subtracted.

In addition, the present invention is formed in the hemispherical convex shape to the inlet side to minimize the resistance to the air pressure flowing from the inlet, and to form a concave back surface of the blocking film to resist the air pressure flowing back from the outlet It is characterized by maximizing.

In addition, the present invention to minimize the resistance to the air pressure flowing from the inlet by forming a cone, such as a cone, a square pyramid protruding toward the inlet side, and to form a rear surface of the barrier to concave from the outlet It maximizes the resistance to air pressure.

In addition, the present invention is characterized in that the protrusion is provided on the outer periphery of the body so that the coupling with the shoe material is easy to maintain the firm state, the projection is formed to be gradient.

With reference to the accompanying drawings, the configuration of an embodiment of the present invention having the above-described structural features, that is, the shoe check valve (V) of the line contact method in detail as follows.

1 is a perspective view according to a first embodiment of the present invention, Figure 2 is a front sectional view according to a first embodiment of the present invention, Figure 3 is a front sectional view according to a second embodiment of the present invention, Figure 4 is 5 is a front cross-sectional view according to a third embodiment of the present invention, and FIG. 5 is a state diagram of use according to the first embodiment of the present invention.

The first embodiment of the present invention is a conventional shoe check valve having an inlet and an outlet and a blocking film,

A body 10 having an inlet 12 which is an inflow passage of air, a cap 20 having an outlet 22 which is a discharge passage of air, and the inlet of the body 10 and the cap 20 ( 12) and a circuit breaker 30 having a barrier film 32 for allowing air flow in only one direction through the outlet 22.

The body 10 is a cylindrical shape formed through the inlet 12 is coupled to the cap 20 on one side.

In addition, the body 10 is provided with three protrusions on the outer periphery, the protrusions are formed to be grated to be easily coupled to the shoe material, so that the combined state is firmly maintained even after use.

The cap 20 is provided with a coupling groove 24 to which the breaker 30 is coupled in one side, and has a cylindrical shape coupled to the body 10 to the other open side.

The outlet 22 is formed through the cap 20, and is composed of four holes arranged in a circle with respect to the center of the coupling groove 24.

The circuit breaker 30 is formed at the ground portion, that is, the barrier film 32 which is in line with the edge formed at the rear of the inlet 12 of the body 10 and protrudes to the rear of the barrier film 32, and the coupling groove ( It is composed of a coupling tip 34, which is fitted to the 24 to be coupled to the cap (20).

The barrier layer 32 is formed in a convex hemispherical shape in front of the inlet 12 and the front contact with the concave, so as to minimize the resistance to the air pressure flowing from the inlet 12 and the outlet 22 Through it maximizes the resistance to the air pressure flowing into the station to increase the opening and closing efficiency.

Here, the blocking film 32 is formed of a soft elastic body that can naturally undergo a desired deformation by the pressure of the air entering and exit, and also using a material having a different hardness value to flexibly respond to the application situation It is desirable to be able to increase or decrease the critical pressure value, which is the pressure of air necessary to open the blocking film 32.

On the other hand, as shown in the second embodiment shown in Figure 3, through the compression spring 40 between the back of the blocking film 32 and the cap 20 of the inlet (12) which is a ground portion in line contact with each other It is also conceivable to generate a preload to maintain a constant adhesion between the rear edge and the front surface of the barrier layer 32 to maintain the posture of the barrier layer firmly and to add or subtract the required threshold pressure value of opening.

In addition, as in the third exemplary embodiment illustrated in FIG. 4, the blocking layer 32 may be formed in a conical shape protruding toward the inlet 12, or may be formed in a similar pyramid shape. In this case, it is natural that the shape of the entire cross section of the inlet 12 or the local shape of the rear edge should be formed in a corresponding shape in which line contact with the blocking film 32 is made.

The embodiment of the shoe check valve (V) of the line contact system of the above-described configuration acts as follows.

FIG. 5 is a state diagram in which the first embodiment is used in combination with a shoe material, and a method of integrally manufacturing by inserting the shoe sole during molding is also possible. It can also be combined by inserting.

The combined valve maintains a firm coupling with the shoe material by a protrusion formed on the outer periphery of the body 10, and in particular, can sufficiently maintain the firm coupling state while sufficiently resisting the pressure of air introduced by the gradient of the toothed protrusion. And robustness to the coupling is ensured even in dynamic vibration conditions.

As shown in FIG. 5, the operation state is described in detail as an example of a valve coupled by placing the inlet 12 on the left side, that is, the outlet 22 on the right side, as shown in FIG. 5. Assume that the left side is the inside of the shoe and the right side is the outside. If the air pressure on the inside, that is, the left side is relatively high, the air flowing through the inlet 12 pushes the barrier 32 and passes through the outlet 22 to the right, that is, outside. On the contrary, in other words, when the air on the right side is high pressure, the air flowing into the station through the outlet 22 pressurizes the rear surface of the barrier film 32 to further seal the inlet 12 and thus through the inlet 12. Inflow into the interior becomes impossible.

In the present invention, since the barrier layer 32 is in line contact with the edge of the rear of the inlet 12, that is, the ground portion, friction noise due to vibration is not generated during operation.

In addition, the present invention is because the blocking film 32 is coupled to the cap 20 through the coupling tip 34 so as not to leave the blocking position, it is possible to open and close the operation in any dynamic situation as well as in a horizontal position, the reliability of the valve This is secured. This holding phenomenon is further improved by adding the compression spring 40.

In addition, the present invention forms the front surface of the blocking film 32 in a streamlined shape and the rear surface is concave, so that the resistance to the air flowing into the inlet 12 is minimized and the air flowing into the reverse through the outlet 22 The resistance is maximized to ensure high reliability and efficiency in opening and closing.

In addition, the present invention may be formed by varying the hardness of the barrier film 32 or may be formed to vary the critical pressure of the air required for opening by increasing or decreasing the contact pressure of the barrier film 32 using a compression spring. The degree of ventilation and cushioning of the shoes can also be reduced.

The shoe check valve of the present invention adopts the contact method between the blocking film and the ground part, and does not generate friction noise during operation, and smoothly performs its original functions without being affected by contamination or damage. It is effective.

In addition, the present invention is fixedly coupled to the valve in the valve to maintain the open and close position even in any dynamic posture, there is an effect of high reliability of operation.

In addition, the present invention has the effect of having a high opening and closing efficiency by forming the shape of the barrier film in the convex hemispherical or horn shape and the opposite side is concave.

In addition, the present invention is formed of a material having a variety of hardness (hardness) material and by adding a compression spring having a variety of rigidity to increase or decrease the contact pressure of the barrier film critical pressure (critical pressure) value required for opening the air Because it can be diversified, there is an effect to reduce the degree of ventilation and cushioning of the shoes, and the sealing of the barrier can also be increased, so there is little possibility of malfunction and high reliability effect.

In addition, the present invention has the effect of maintaining a strong coupling state by forming a protrusion on the outer peripheral edge of the body coupled to the shoe material.

Claims (5)

In a conventional shoe check valve having an inlet and an outlet and a blocking film, A cylindrical body formed by penetrating an air inlet, An outlet through which air is discharged through one side thereof, and formed with a coupling groove for accommodating the blocking membrane therein, and a cylindrical cap coupled to the body with the other side opened; A coupling tip fitted to the coupling groove is provided at one side to be coupled to the cap and provided with a shielding film that is line-contacted with a corner formed at the rear of the inlet of the body at the other side to flow the air in one direction, That is, the shoe check valve of the line contact method characterized in that it is provided with a circuit breaker that passes only through the inlet to the outlet and block in the reverse direction. The method of claim 1, A critical pressure of air necessary for opening is provided between the breaker and the cap, and having a compression spring for generating a pre-pressure between the rear edge of the inlet, which is a ground part in contact with the blocking film. Check valve for shoes of the line contact method characterized in that the value is added or subtracted. The method according to claim 1 or 2, The barrier layer is formed in a convex hemispherical shape to the inlet side to minimize the resistance to the air pressure flowing from the inlet, and to form a concave back surface to maximize the resistance to the air pressure flowing back from the outlet Type check valve for shoes. The method according to claim 1 or 2, The barrier layer is formed in the shape of a cone, such as a cone, a square pyramid protruding toward the inlet side to minimize the resistance to the air pressure flowing from the inlet, and to form a concave rear surface to maximize the resistance to the air pressure flowing back from the outlet Shoe check valve of the line contact method characterized in that. The method of claim 1, The body is provided with a protrusion on the outer periphery so that the coupling to the shoe material is easy and the state of engagement is firmly maintained, the line contact type shoe check valve, characterized in that the projection is formed to be gradient.