KR200475568Y1 - Valve leak test device for air compressors - Google Patents

Abstract

A leak checking apparatus for a valve for an air compressor is disclosed. The leak test apparatus for a valve for an air compressor according to claim 1, wherein the lower test box has an inner space capable of receiving air, And a central portion of the valve seat portion includes a lower test box communicating with the inner space; An upper test box having an inner space capable of receiving air and positioned above the lower test box; Moving means connected to the lower test box and the upper test box to move the upper test box in a direction in contact with the lower test box and in a direction away from the lower test box; An air injection pipe connected to the lower test box and injecting air into the inner space of the lower test box; And an air leakage check device connected to the lower test box or the upper test box for measuring and displaying whether air leaks from the valve, It is possible to measure whether the air in the lower test box leaks into the inner space of the upper test box through the valve in a state in which the valve seated on the box and secured to the valve seat is fixed.

Description

Technical Field [0001] The present invention relates to a valve inspection apparatus for an air compressor,

The present invention relates to a leak inspecting apparatus for an air compressor, and more particularly, to a leak inspecting apparatus for a valve for an air compressor capable of inspecting a mechanical leak of a valve for an air compressor.

Generally, the air compressor includes a cylinder for sucking and compressing air to be discharged, and a suction chamber and a discharge chamber may be integrally formed inside the cylinder. A valve device for opening and closing the suction chamber and the discharge chamber may be provided in the suction chamber and the discharge chamber. The valve device may include a generally plate-shaped housing and a plurality of plate-shaped open / close valves mounted in the housing.

The valve device of such an air compressor is required to perform an opening and closing action smoothly so that the air compressor can be normally used. Accordingly, a leakage inspection process for checking whether the valve device is leaking is required.

In the leakage inspection process of the valve device of the conventional air compressor, the inspector presses the opening / closing valve of the valve device by using a separate tool to confirm whether or not the air leaked.

Since the leakage inspection of the valve device of the conventional air compressor is performed by hand, there is a problem that the reliability of the inspection is deteriorated by determining whether the valve is damaged by an arbitrary judgment of the inspector.

In addition, the manual opening and closing valve may be used as it is, and consequently, the normal operation of the air compressor is not performed frequently.

In order to solve such a conventional problem, the inventor of the present invention has introduced the following configuration to ensure the reliability of inspection, to perform accurate inspection through a mechanical inspection process, to reduce inspection time, A leak checking apparatus for a valve for an air compressor has been developed.

The present invention relates to an inspection device for checking the leakage of a valve for an air compressor, which is a lower test box having an internal space capable of receiving air, and includes a valve seat for seating the valve on the upper surface of the lower test box A lower test box communicating with the inner space at a central portion of the valve seat; An upper test box having an inner space capable of receiving air and positioned above the lower test box; Moving means connected to the lower test box and the upper test box to move the upper test box in a direction in contact with the lower test box and in a direction away from the lower test box; An air injection pipe connected to the lower test box and injecting air into the inner space of the lower test box; And an air leakage check device connected to the lower test box or the upper test box for measuring and displaying whether air leaks from the valve, And a check valve for the air compressor, which measures whether or not air in the lower test box leaks into the inner space of the upper test box through the valve in a state in which the valve seated on the valve mounting part is in tight contact with the box. Device.

For example, the moving unit may include: a guide shaft disposed in each corner area of the lower test box in the upper surface portion of the lower test box, the guide shaft having a thread in a part of the axial direction of the guide shaft; And a fastener coupled to the guide shaft by screwing with the thread.

In this case, the upper test box is formed with insertion holes for inserting the guide shafts in the respective corner areas, the guide shafts are inserted into the insertion holes, and the upper test box moves along the guide shafts, The upper test box covers the valve seated in the valve seat and the fastener is tightened toward the upper test box so that the upper test box is in close contact with the lower test, have.

The moving means may further include a spring coupled to the guide shafts and disposed between the lower test box and the upper test box, wherein the spring is retracted when the upper test box is in close contact with the lower test box The fastener may be rotated in the unwinding direction along the thread to restore the upper test box when the upper test box is unfastened, thereby moving the upper test box away from the lower test box.

FIG. 1 is a perspective view showing a configuration of a leakage inspection apparatus for a valve for an air compressor according to an embodiment of the present invention. FIG.
2 is a side view of Fig.
FIG. 3 is a side view showing a state in which the upper test box shown in FIG. 1 is moved.
FIG. 4 illustrates a case where a plurality of leak testing devices for valves for an air compressor according to an embodiment of the present invention are connected and used.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a leakage inspection apparatus for a valve for an air compressor according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the appended claims are not intended to limit the invention to the particular forms disclosed, but to include all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged from the actual size in order to clarify the present invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

FIG. 1 is a perspective view showing a configuration of a leakage inspection apparatus for a valve for an air compressor according to an embodiment of the present invention, and FIG. 2 is a side view of FIG. 1.

Referring to FIGS. 1 and 2, an apparatus for testing leakage of a valve for an air compressor according to an embodiment of the present invention includes a lower test box 110; An upper test box 120; Moving means (130); An air injection tube 140; And an air leakage confirmation device 150. [

The lower test box 110 may have an inner space capable of receiving air. For this purpose, for example, the lower test box 110 may include a bottom portion, a side portion extending vertically from the bottom portion, and a flat portion opposite the bottom portion. For example, the lower test box 110 may be in the form of a rectangular parallelepiped or a cuboid, and is not particularly limited thereto.

A valve 10 may be seated on the flat portion of the lower test box 110. For this purpose, the valve seat 111 may be formed on the flat surface. For example, the valve seat portion 111 may be formed stepwise from the surface of the flat surface portion.

In addition, the center of the valve seat 111 may be opened to communicate with the inner space of the lower test box 110. Thus, when the valve 10 is seated in the valve seat 111, the valve 10 is located above the opening of the valve seat 111 and can close the opening.

The upper test box 120 may have an internal space capable of receiving air. To this end, for example, the upper test box 120 may include a bottom portion, a side portion extending vertically from the bottom portion, and a flat portion opposite the bottom portion. For example, the upper test box 120 may have a rectangular parallelepiped shape or a cuboid shape, and is not particularly limited thereto. Leaked air can be introduced into the inner space of the upper test box 120 when air in the inner space of the lower test box 110 is leaked through the valve 10.

The upper test box 120 may be spaced apart from the lower test box 110 to seat the valve 10 in the valve seat 111 of the lower test box 110, The valve 10 can be fixed in the valve seat 111 by being in close contact with the flat surface of the lower test box 110 when the valve 10 is seated. To this end, the moving means 130 is used.

The moving means 130 is connected to the lower test box 110 and the upper test box 120 so as to move the upper test box 120 in a direction contacting the lower test box 110 and in a direction moving away from the lower test box 110 . To this end, the moving means 130 includes guide shafts 131; And may include fasteners 132.

The guide shafts 131 may be vertically positioned on the flat portion of the lower test box 110 and may be disposed in the respective corner areas of the lower test box 110. The guide shaft 131 may have a thread 131a formed in a part thereof. For example, the formation of the thread 131a starts from the upper end of the guide shaft 131, and the lower test box 120 is lower than the upper surface of the upper test box 120 in a state in which the upper test box 120 is in close contact with the lower test box 110 Position.

This guide shaft 131 is a part for guiding the movement of the upper test box 120 and must be fastened to the upper test box 120. For this purpose, an insertion hole is formed in each corner area of the upper test box 120 And guide shafts 131 may be inserted into the respective insertion holes so that the guide shafts 131 may be fastened to the upper test box 120. Accordingly, the upper test box 120 can move along the guide shafts 131.

The fasteners 132 may be coupled to the guide shaft 131 by being screwed with the threads 131a formed on the guide shaft 131. [ In one example, the fastener 132 may include a cylindrical body 132a having a threaded hole and a plurality of handles 132b arranged along the circumferential direction of the cylindrical body 132a. The handle 132b is a portion for easily rotating the fastener 132.

For example, the fastener 132 can be moved (tightened) toward the lower end of the guide shaft 131 along the axial direction of the guide shaft 131 when rotated clockwise, and is rotated counterclockwise (In the releasing direction) toward the upper end of the guide shaft 131 along the axial direction of the guide shaft 131.

In this case, when the fastener 132 is rotated clockwise with the upper test box 120 in close contact with the lower test box 110, the fastener 132 moves toward the upper surface of the upper test box 120, It is possible to fix the state in which the box 120 is in tight contact with the lower test box 110 and to rotate the fastener 132 counterclockwise when it is desired to separate the upper test box 120 from the lower test box 110 The fastener 132 moves toward the upper end of the guide shaft 131 and is separated from the upper test box 120 so that the upper test box 120 is released from the fixed state, (Not shown).

On the other hand, the moving means 130 may further include a spring 133.

The spring 133 may be coupled to the guide shafts 131 to surround the guide shafts 131. At this time, the spring 133 may be disposed between the lower test box 110 and the upper test box 120.

The spring 133 is contracted and restored so that when the upper test box 120 is moved toward the lower test box 110 and the upper test box 120 is in close contact with the lower test box 110, The fastener 132 may be rotated in the unwinding direction along the thread to be restored when the upper test box is unfastened.

The spring 133 is normally positioned between the upper test box 120 and the lower test box 110 to support the upper test box 120 and the fastener 132 is rotated in the unwinding direction The upper test box 120 can be moved along the guide shafts 131 in a direction away from the lower test box 110. [

Therefore, when the upper test box 120 is to be released from the lower test box 110 in a tightly closed state, only the action of rotating the fastener 132 in the release direction causes the upper The test box 120 may be spaced apart from the lower test box 110.

When such a spring 133 is provided, the upper test box 120 may include a protruding portion 122 extending vertically from the bottom portion. The protruding portion 122 may be, for example, a polygonal shape such as a rectangular parallelepiped or a cube. The projecting portion 122 may be formed in an area that covers the valve seat 111 of the lower test box 110 and may be formed to have a size that does not interfere with the springs. The protruding portion 122 may be formed on the inner side of the inner side of the upper test box 120 and the upper test box 120 may be coupled to the lower test box 110 along the guide axes 131 The valve seat 111 can be brought into close contact with the valve seat 111, The bottom surface of the protruding portion 122 can be opened so that leaked air can be introduced when air is leaked through the valve 10. [

The air injection tube 140 may be connected to the lower test box 110 to inject air into the inner space of the lower test box 110. For example, the air injection tube 140 may include an air injection unit 140a and an air discharge unit 140b. The air injecting portion 140a may be connected to the side portion of the lower test box 110 and may be a tube for injecting air and the air discharging portion 140b may be an air injecting portion 140a to discharge the injected air.

When the pressure in the inner space of the lower test box 110 is increased after the air is injected into the lower test box 110 through the air injection pipe 140, the air injection pipe 140 is sealed do. For this purpose, for example, the first opening / closing valve 141 and the second opening / closing valve 10 may be installed in the air injection pipe 140. The first on-off valve 141 may be a valve for opening and closing the inside of the tube for forming the air injecting part 140a provided in the air injecting part 140a, and the second on- And may be a valve for opening and closing the inside of the pipe forming the air discharge portion 140b.

In the case of this type of air injection pipe 140, the second on-off valve 10 is locked, the first on-off valve 141 is opened, and air is introduced into the inner space of the lower test box 110 through the air injection unit 140a When the air is to be discharged through the air discharging part 140b after the air is injected, the second opening / closing valve 10 may be opened to discharge the air.

In order to measure the injection pressure of the air injected into the air injection pipe 140 in the process of injecting air into the internal space of the lower test box 110 through the air injection pipe 140, Gauge 143 may be provided. Therefore, when the air is injected through the air injection pipe 140, air can be injected while maintaining the proper injection pressure while confirming the injection pressure through the pressure gauge 143.

On the other hand, the air leakage check device 150 can measure and display whether air leaks from the valve 10 during inspection of the valve 10. As an example, the air leakage detection device 150 may be an electronic device. In this case, the air leakage check device 150 may include an electronic pressure gauge for measuring a change in pressure formed in the inner space of the lower test box 110, for example, to check whether air is leaked, And a display means and a timer for displaying a pressure change measured from the electronic pressure gauge. The display means may be, for example, lamps emitting light with different colors depending on the pressure change or display form for displaying the pressure change value.

When the display means is a lamp, the lamps may be blue lamps and red lamps, respectively. In such a case, for example, blue light is emitted if no air leakage through the valve occurs for a predetermined time for air leakage confirmation, If an air leak occurs through the valve for a set period of time to verify the leak, the red light may be turned on.

For example, when the display means is a display type, the display may include an area where an initial pressure value set after completion of air injection into the internal space of the lower test box 110 is displayed, And a display area.

The leaks of the valve for an air compressor according to one embodiment of the present invention may be independently installed, or a plurality of valves may be connected as shown in FIG. When a plurality of connection units are provided, the air inlet pipes can be connected to each other, and in this case, air supply can be simultaneously performed.

Hereinafter, a process of inspecting a valve using a leak inspection apparatus for a valve for an air compressor according to an embodiment of the present invention will be described.

To inspect the valve, first place the valve 10 in the valve seat 111 of the lower test box 110.

Thereafter, the upper test box 120 is moved toward the lower test box 110. At this time, the upper test box 120 is moved toward the lower test box 110 while the fastener 132 is rotated clockwise (fastening direction), and the protruding portion 122 of the upper test box 120 is moved to the lower test box The fastener 132 is fully tightened on the upper surface of the upper test box 120 to fix the upper test box 120 in close contact with the lower test box 110. Thereby, the valve 10 seated in the valve seat 111 is fixed between the upper test box 120 and the lower test box 110, and the spring 133 is contracted. FIG. 3 is a side view showing a state in which the upper test box shown in FIG. 1 is moved. This state is well shown in FIG.

In this state, air is injected into the inner space of the lower test box 110 through the air injection pipe 140. At this time, the first on-off valve 141 installed on the air injection part 140a is opened and the second on-off valve 10 installed on the air discharge part 140b is closed.

Thereafter, when air is injected into the inner space of the lower test box 110 to form a predetermined pressure, the first opening / closing valve 141 installed on the air injecting portion 140a is closed, and the air is injected into the inner space of the lower test box 110 So that the formed pressure is maintained.

Next, the timer of the air leakage check device 150 may be set to set the time for inspection of the valve 10. [ Here, the time set for inspection of the valve 10 is a time for measuring whether or not air in the inner space of the lower test box 110 is leaked through the valve 10 within a predetermined time.

After completion of the setting for confirming whether the valve 10 is leaked, the air leakage detection device 150 measures whether the air leaks through the valve 10 within a predetermined time.

The leaked air may flow into the protruding portion 122 through the protruding portion 122 of the upper test box 120 when the air leaks through the valve 10 during the measurement process.

The result of the measurement of the air leakage through the valve 10 is displayed externally through the display means (lamps or display) of the air leakage detection device 150. Since the measurement result display of the display means has been described above, a detailed description will be omitted.

When the inspection process of the valve 10 is completed, the air injected into the lower test box 110 can be discharged through the air discharge portion 140b of the air injection pipe 140. At this time, the second open / close valve 10 is opened So that the air can be discharged.

Since the leakage inspection of the valve for the air compressor according to the embodiment of the present invention is performed by a mechanical inspection method, it is possible to ensure the reliability of the inspected product (valve) Can be improved.

Further, since the plate inspecting method is mechanically performed, the inspection of the valve can be accurately performed, the inspection time of the valve can be reduced, and the convenience of the operator can be increased.

Claims (3)

An inspection device for checking leakage of a valve for an air compressor,
A lower test box having an inner space capable of receiving air, the valve seat having a valve seat for seating the valve on an upper surface of the lower test box, the central portion of the valve seat having a lower test box communicating with the inner space;
An upper test box having an inner space capable of receiving air, the upper test box having an insertion hole formed in each corner area of the upper test box and positioned at an upper portion of the lower test box;
Moving means connected to the lower test box and the upper test box to move the upper test box in a direction in contact with the lower test box and in a direction away from the lower test box;
An air injection pipe connected to the lower test box and injecting air into the inner space of the lower test box; And
And an air leakage check device connected to the lower test box or the upper test box for measuring and displaying whether air leaks from the valve,
Wherein,
A guide shaft disposed at each corner of the lower test box in the upper surface portion of the lower test box, the guide shaft having a thread in a part of the axial direction of the guide shaft;
A fastener threadably engaged with the threaded shaft and coupled to the guide shaft; And
And a spring coupled to the guide shafts and disposed between the lower test box and the upper test box,
The spring is retracted when the upper test box is in close contact with the lower test box and the fastener is rotated in the release direction along the thread so that the upper test box is restored when the upper test box is released, In a direction away from the <
Leak inspection device for valves for air compressors. delete delete

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