KR101453479B1 - submergence type leak test apparatus - Google Patents

submergence type leak test apparatus Download PDF

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Publication number
KR101453479B1
KR101453479B1 KR1020140100260A KR20140100260A KR101453479B1 KR 101453479 B1 KR101453479 B1 KR 101453479B1 KR 1020140100260 A KR1020140100260 A KR 1020140100260A KR 20140100260 A KR20140100260 A KR 20140100260A KR 101453479 B1 KR101453479 B1 KR 101453479B1
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KR
South Korea
Prior art keywords
inspection
storage tank
water
unit
water storage
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KR1020140100260A
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Korean (ko)
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권용현
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권용현
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B13/00—Measuring arrangements characterised by the use of fluids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02—Details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
    • G01N3/12—Pressure testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/022—Environment of the test
    • G01N2203/023—Pressure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/04—Chucks, fixtures, jaws, holders or anvils

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

In order to promptly confirm whether or not leakage of the inspection object is present, the present invention is characterized in that it comprises: a pressing means for pressing down the inspection object with the plurality of opening pipes formed thereon; and a sealing means for sealing the opening pipes, An inspection part in which a side part is sealed so that water flowing through the part is stored; A water reservoir which is provided at a lower side of the inspecting unit in a closed space and stores the water flowing into the inspecting unit through the passageway; An air supply unit connected to a first pipe portion provided at an upper end of the water storage tank and supplying compressed air to the upper side of the water storage tank; And a closed end portion that is formed with the end portion of the second tube portion so as to selectively open an end portion of the second tube portion provided at the other end of the water storage tank and a sealing drive portion that selectively removes the closed end portion from the second tube portion And an air discharging portion for discharging the leaked liquid.

Description

[0001] The present invention relates to a submergence type leak test apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leak test apparatus, and more particularly, to an improved submerged leak test apparatus capable of promptly confirming the airtightness of a test object.

Generally, a manifold refers to a manifold having a passage serving as a pipe and having a plurality of device connection ports on the outside thereof. That is, the manifold is used for guiding the intake or exhaust of each cylinder in a multi-cylinder engine. The former is referred to as an intake manifold and the latter is referred to as an exhaust manifold.

In order to manufacture the manifold as described above, a mold is manufactured using a molding sand, and the molten metal is filled between the molds. Specifically, the mold using the foundry sand is provided with an outer mold formed by a groove corresponding to the outer shape of the manifold, and an inner mold corresponding to an exhaust pipe and an intake pipe of the manifold. Here, the outer mold has a funnel-shaped injection port for injecting the molten material into the upper end thereof, and may be referred to as a flask mold.

At this time, when bubbles are generated or mixed with impurities when the molten material is injected into the flask mold, minute pores often occur in the completed manifold. The pores are difficult to be visually recognized. When the manifold having pores is mounted on a vehicle or a machine as described above, a fluid such as a lubricant, gas, or the like may flow out through the pores.

This may cause malfunction and failure of the vehicle or machine, and may cause a serious safety accident such as breakage, fire or explosion of the vehicle or machine. Moreover, the leaked fluid may expose the user to the risk of being poisoned or suffocated.

After the manifold is manufactured, a leak test is performed to check whether pores of the manifold are formed, and a leak test apparatus for the test is provided. Here, the leak test apparatus may be formed in various forms such as a vacuum equation and a submerged equation.

At this time, the submerged leak test is performed by immersing each of the openings of the manifold in water in a sealed state, and rapidly injecting air into the manifold to confirm whether bubbles have been generated. That is, if the pores are formed in the manifold, air bubbles may be generated at the positions where the pores are formed, and the presence or absence of the manifold may be inspected.

However, in the conventional submersible leak test apparatus, there is a problem that it takes a long time to fill the water storage tank with water after the one manifold is mounted and then drain the water after inspection. As a result, it takes a long time to inspect manifolds produced in large quantities, which makes it difficult to supply them to the market promptly, resulting in poor economical efficiency.

Korean Patent No. 10-0482871

In order to solve the above-mentioned problems, a submerged leak test apparatus according to the present invention is provided.

In order to solve the above-mentioned problems, the present invention provides an apparatus for measuring a temperature, comprising: a pressing means for pressing down the inspection body with a plurality of opening tubes formed thereon; and a sealing means for sealing the opening tubes, A test portion in which a side portion is sealed so that water is stored; A water reservoir which is provided at a lower side of the inspecting unit in a closed space and stores the water flowing into the inspecting unit through the passageway; An air supply unit connected to a first pipe portion provided at an upper end of the water storage tank and supplying compressed air to the upper side of the water storage tank; And a closed end portion that is formed with the end portion of the second tube portion so as to selectively open an end portion of the second tube portion provided at the other end of the water storage tank and a sealing drive portion that selectively removes the closed end portion from the second tube portion And an air discharging portion for discharging the leaked liquid.

Preferably, the end portion of the passage portion is provided with a guide tube portion extending to a predetermined length toward the bottom surface of the water storage tank so as to limit the level at which the inspection object is immersed.

The sealing means includes an elastic shield provided to correspond to an end surface of the opening tube and a pressing portion for pressing the elastic shield to closely contact the opening tube and the elastic shield, It is preferable that a spray hole for spraying gas for airtight inspecting is formed inside the upper body.

The pressing means includes a guide bar extending upwardly of the inspection unit and a lifting and pressing unit that is raised and lowered along the longitudinal direction of the guide bar and has a fixing protrusion for elastically fixing the outer surface of the inspection table, It is preferable that an elastic sealing portion which is in close contact with the bottom side opening tube of the inspection table body pressed by the pressing means is provided on the surface.

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Through the above solution, the submerged leak test apparatus of the present invention provides the following effects.

First, as the air supplied to the upper side of the water reservoir in a closed state is pressed corresponding to the surface area of the water, the water automatically flows into the inspection unit provided above the water reservoir through the guide pipe portion, Is significantly shortened, so that more products can be inspected and productivity can be improved.

Secondly, if the closed end is separated from the end of the second tube portion, the air pressure inside the water reservoir becomes equilibrium, and the water stored in the inspection portion is automatically discharged to the water reservoir provided at the lower side by gravity So that no separate power is required, so that the structure can be simplified and the economical efficiency can be remarkably improved.

Third, when the water flows into the inspection unit, the pressure of the air formed on the upper side of the water storage tank and the pressure of the water formed on the water storage tank at a position corresponding to the end portion of the guide pipe portion extending from the end of the passage portion toward the bottom surface of the water storage tank, The pressure can be equilibrated and the inflow of water to the inspection unit side can be automatically restricted.

1 is a schematic view showing a submerged leak test apparatus according to an embodiment of the present invention;
2 is a schematic view showing a state in which the air supply unit is operated according to an embodiment of the present invention;
3 is an enlarged view showing part A of Fig.
FIG. 4 is a schematic view showing a state in which an air discharge unit is opened according to an embodiment of the present invention; FIG.

Hereinafter, a submerged leak test apparatus for a manifold according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a schematic view showing a submerged leak test apparatus according to an embodiment of the present invention, FIG. 2 is a schematic view showing a state in which the air supply unit is operated according to an embodiment of the present invention, FIG. 3 is a cross- And FIG. 4 is a schematic view showing an opened state of the air discharge unit according to an embodiment of the present invention.

1 to 4, a submerged leak test apparatus 100 according to the present invention includes an inspection unit 10, a water reservoir 20, an air supply unit 30, and an air discharge unit 40 do. Here, the submerged leak test apparatus 100 refers to a device for testing air tightness after casting a test top body K made of a manifold such as a manifold.

In detail, each of the openings K1 and K3 of the inspecting body K is fixed so as to be hermetically sealed, and the gas is injected into the sealed inside K2 in a state immersed in water. At this time, The airtightness of the product can be determined. That is, if air bubbles are generated on the surface of the body of the inspection object K, it is determined that the inspection object K is defective because fine pores are formed in the body at the time of manufacturing. Otherwise, it can be determined as a normal product.

The inspection unit 10 is configured to detect the height of the side portion 10b from the edge of the bottom surface 10a such that the upper end of the inspection unit 10 is accommodated and the water to which the inspection unit upper body K is filled is stored. And includes a pressurizing means 11 and a sealing means 15. The pressurizing means 11 and the sealing means 15 are provided in the housing space. In addition, the inspection unit 10 may be provided with a seating part 18 spaced apart from the bottom surface 10a by a predetermined distance so that the inspection object K is placed.

At this time, the pressing means 11 is provided at the upper end of the inspection unit 10 so as to press the outer surface downward to fix the inspection table upper body K in the accommodation space of the inspection unit 10, and the sealing means 15 Is preferably provided in the accommodation space so as to seal the opening pipes K1 and K3 of the inspection table upper body K so as to substantially block the inside K2 of the inspection table upper body from the outside.

Specifically, the pressing means 11 includes a guide bar 12 vertically extending to one side of the inspection unit 10, and a lifting and pressing unit 13 lifted and lowered along the longitudinal direction of the guide bar 12 . At this time, the guide bars 12 are extended at positions adjacent to the respective corners of the bottom surface 10a, and may be connected to the corner of the seating part 18 as shown in the figure, .

The lifting and lowering portion 13 is formed with a lifting hole 13a through which the guide bar 12 is selectively moved so as to be selectively lifted along the longitudinal direction of the guide bar 12. At this time, the lifting and pressing part 13 can be lifted up and down by various types of lifting members 12a such as hydraulic cylinders. Such a lifting and lowering control method can be easily carried out by those having a general knowledge in the field. So that detailed description thereof will be omitted.

Here, it is preferable that a fixing protrusion 14 is provided at the lower end of the lifting and pressing part 13. Specifically, the fixing protrusion 14 is brought into close contact with the outer surface of the inspection fore-and-aft body K as the elevation pushing portion 13 is lowered toward the bottom surface 10a.

At this time, the fixing protrusion 14 may be formed to have an outer shape that is narrowed toward the end side so that the fixing protrusion 14 can be resiliently pressed in close contact with the atypical outer profile of the inspection table upper body K. In addition, 14a may be provided. Here, the buffer portion 14a may be formed of a spring having excellent elastic shrinkage and restoration.

That is, even if the fixing protrusion 14 provided at the lower side of the lifting and lowering portion 13 is lowered to the same height to press the inspection table upper body K with the same force, The buffering portion 14a can be elastically and flexibly stretched and contracted, so that it is possible to prevent the surface of the inspection object K from being stably fixed and scratches or damage to the outer surface thereof.

In addition, the seating portion 18 is provided with the elastic sealing portion 18a so that the outer surface of the inspection fore-and-a-middle body K corresponding to the seating portion 18 is elastically contacted with the seating portion 18 as the elevation pushing portion 13 descends desirable. At this time, the elastic sealing portion 18a may be made of synthetic resin material such as silicone, soft urethane, etc., which is flexible and excellent in elasticity and adhesion.

Specifically, for example, the manifold may include a plurality of opening tubes including a plurality of branch tube portions K3 on one side and a main tube portion K1 on the other side where the branch tube portions K3 are integrated And each of the openings of the branch pipe K3 may extend substantially the same length. When the manifold is disposed on the upper surface of the seating part 18, the openings of the branch tube K3 abut on the upper surface of the elastic sealing part 18a and the main part K1 contacts the upper surface of the checking part 10, And can be seated in an opened state upward.

At this time, when the elevation pushing portion 13 is lowered, the end of the fixing projection 14 is pressed downward against the outer surface of the manifold, which is the inspection object K, and the opening of the branching tube portion K3 And can be hermetically sealed to the elastic sealing portion 18a. In this case, the opening pipe means the branch pipe portion K3 and the main pipe portion K, so that the opening pipe, the branch pipe portion K3 and the main pipe portion K1 described below are preferably understood to have the same meaning.

That is, the buffering part 14a is provided on the fixing protrusion 14 provided on the lower part of the lifting and pressing part 13 and the elastic sealing part 18a is provided on the upper surface of the mounting part 18, The inspection body K can be stably pressed and fixed, and the sealing performance of the branch tube portion K3 can be further improved, and the reliability of the inspection result can be remarkably improved.

The sealing means 15 includes an elastic shield 16 which is in close contact with the opened end of the main pipe portion K1 and a pressing portion 16 which presses the elastic shield portion 16 toward the main pipe portion K1 17). At this time, the elastic shield 16 may be formed of silicon or soft urethane or the like as the elastic seal 18a.

That is, the upper end of the elastic hermetic portion 18a and the branch tube portion K3 are pressed in close contact with each other as the lifting and pressing portion 13 is lowered and pressed, The elastic shield 16 and the end of the main portion K1 are pressed and brought into close contact with each other as the elastic shield 16 is pressed toward the main portion K1 by the elastic portion 17, K2 can be sealed. At this time, the sealing means 15 may be provided to be changeable in angle and position so as to be closely contacted with the direction in which the main pipe portion K1 is opened.

In the meantime, it is preferable that a spray hole 16a for spraying a gas for hermeticity inspection is formed at the center of the sealing means 15 in the inside of the inspection table upper body K2. In detail, the gas is injected into the inside K2 of the inspection table body through the spray hole 16a, and the outflow of the gas can be restricted when the inspection table upper body K is substantially closed, If minute pores are formed in the body of the fuel cell K, the airtightness testing gas may flow out through the pores and bubbles may be generated.

At this time, the water to which the inspection object K can be deposited may be introduced into the accommodation space of the inspection unit 10 from the water storage tank 20 so as to easily determine whether or not the bubbles are generated.

In detail, the inspection unit 10 is arranged to fix and fix the inspection fore-and-aft body K so that the upper side is opened so that the elevation pressing unit 13 can be elevated and lowered, And the side portion 10b may be hermetically closed so as to be stored at a height h2.

At this time, the water is stored in the water storage tank 20 connected to the inspection unit 10 through the passage unit 19, and the water is selectively stored in the water storage tank 20 through the passage 19, Or may be discharged to the water storage tank 20 side.

The passage portion 19 is formed below the inspection portion 10 as the flow path of the water between the inspection portion 10 and the water storage tank 20 and the end portion of the passage portion 19 is connected to the water storage tank It is preferable that the guide tube portion 19a is extended toward the bottom surface 10a. In addition, the water supply unit 30 is provided on one side of the water storage tank 20 so that the water can be quickly and easily introduced and discharged to the inspection unit 10 located above the water storage tank 20, It is preferable that an air discharge portion 40 is provided.

In detail, the water storage tank 20 is provided in a substantially closed state below the inspection unit 10, and a predetermined space may be formed on the upper side where the water is stored. The inspection unit 10 and the water storage tank 20 are connected to the bottom surface of the inspection unit 10 by the guide tube 19a extending downward from the end of the passage unit 19, When the guide tube portion 19a is filled up to a level higher than the end portion 19b of the guide tube portion, the guide tube portion 19a is substantially closed, so that the inside of the water storage tank 20 can be formed in a closed vacuum state.

The first tubular portion 21 and the second tubular portion 22 are provided at both ends of the upper side of the water storage tank 20 in which the space is formed and the air supply portion 30 is connected to the first tubular portion 21 And the air outlet 40 is connected to the second tube portion 22.

In detail, the air supply unit 30 may be provided with a known air compressor or the like, and supplies air to a space formed on the upper side of the water storage tank 20 in which the water is stored. The air supply unit 30 is operated to supply air to the upper space of the water storage tank 20 through the first tube unit 21 to press the water downward corresponding to the surface area of the water. At this time, since the water tank 20 is sealed in a substantially vacuum state, the water can be rapidly introduced into the inspection unit 10 through the guide tube 19a corresponding to the volume of the air. 2 to 4, it is preferable that f represents the moving direction of the air and w represents the moving direction of the water.

If the air generated in the air supply unit 30 is supplied to the upper space of the water storage tank 20 while the water storage tank 20 is in the closed state, the water stored in the water storage tank 20 Since the water can be automatically and quickly introduced into the inspection unit 10 provided on the upper side of the apparatus, the ease of use can be improved and the airtightness inspection process can be rapidly performed.

It is preferable that a guide tube portion 19a extending to a bottom surface of the water storage tank 20 is provided at an end portion of the passage portion 19 so as to limit a water level at which the inspection object K is immersed Do. The guide tube portion 19a has a width h1 from the maximum water level L1 stored in the water storage tank 20 to the end 19b of the guide tube portion from the bottom surface 10a of the inspection portion 10 May correspond to or be longer than the vertical height (h2) of the inspection table body (K). In addition, a substantially large amount of water corresponding to the diameter of the guide tube portion (19) is rapidly introduced into the inspection portion (10), so that the inspection of the airtightness of the inspection member (K) can proceed more quickly.

In detail, while the water storage tank 20 is in a hermetically closed state, the water continuously flows into the inspection unit 10 through the guide tube 19a by the air supplied to the upper side of the water storage tank 20, When the water level of the water storage tank 20 is lowered corresponding to the end 19b of the tube portion, the pressure of the air formed on the upper side of the water storage tank 20 becomes equal to the pressure of the water, So that it can be automatically adjusted.

At this time, the amount of the water flowing into the inspection unit 10 can be substantially introduced so that the inspection member K can be deposited, and the guide pipe portion 19a is formed longer than the height of the inspection member And may extend to a length corresponding to a level not flooding the outside of the inspection unit 10. At this time, the end portion 19a of the guide tube portion may be formed parallel to the bottom surface of the inspecting portion 10 to the water storage tank 20, but it may be inclined as shown in the drawing, May be a limit to limit the inflow amount of the water.

The water can be quickly introduced into the inspection unit 10 by supplying the air to the upper side of the water storage tank 20 and the air can be continuously supplied to the water storage tank 20 through the air supply unit 30. [ The amount of water flowing into the inspection unit 10 is kept constant even if it flows upward, so that the usability can be remarkably improved.

On the other hand, after the inspection trough body K is immersed in water, the airtightness test for confirming whether bubbles are generated by spraying gas into the inspection trough body K through the spray holes 16a is completed The water stored in the inspection unit 10 must be discharged to replace the inspection unit K. [

At this time, in order to quickly discharge the water stored in the inspecting unit 10 to the water storage tank 20 side, It is preferable to selectively open the discharge portion 40.

In detail, the air outlet 40 is connected to the second tube portion 22 and includes a closed end portion 41 that is formed with the end portion of the second tube portion 22 and the closed end portion 41, And a hermetic driving part (42) for selectively detaching the hermetically sealed container (22).

That is, since the water storage tank 20 is substantially closed in a state in which the closed end portion 41 is closely contacted with the end portion of the second tube portion 22, the water is generated in the air supply portion 30, The water can be introduced into the inspection unit 10 by the volume of the air supplied to the inspection unit 10.

When the closed end portion 41 is detached from the end portion of the second tube portion 22, the water storage tank 20 is substantially opened so that the atmospheric pressure becomes equilibrium so that the water stored in the inspection portion 10 by gravity Can be automatically discharged to the water storage tank (20). Further, even if the air is continuously supplied from the air supply unit 30, the air is discharged through the opened second tube unit 22, so that the water stored in the inspection unit 10 is automatically discharged through the guide tube 19a The inflow of water from the water storage tank 20 to the inspection unit 10 can be restricted.

The submerged leak test apparatus 100 may be configured such that the water is selectively discharged between the inspection unit 10 and the water storage tank 20 in accordance with the selective opening and closing state of the second pipe portion 22 by the air discharge unit 40. [ The time for inspecting the airtightness of the inspection table upper body K can be remarkably shortened.

That is, when the air is supplied to the upper side of the water storage tank 20 in a sealed state by the closed end portion 41 and the end portion 22a of the second tube portion, the water is pressurized corresponding to the surface area of the water, Can be automatically and rapidly introduced into the inspection unit 10 provided on the upper side of the water storage tank 20 through the guide pipe 19a and the time for inspecting airtightness is remarkably shortened so that more products can be inspected and productivity can be improved .

If the closed end portion 41 is separated from the end portion 22a of the second tube portion, the pressure inside the water storage tank 20 is balanced and the water stored in the inspection portion 10 is discharged by the gravity It can be automatically and quickly discharged to the water reservoir 20 provided at the lower side, so that no separate power is required, so that the structure can be simplified and the economical efficiency can be remarkably improved.

At this time, when the water flows into the inspection part 10, the water flows from the end of the passage part 19 to the end 19b of the guide tube part 19a extending to a predetermined length toward the bottom surface of the water storage tank 20 The pressure of the air formed on the upper side of the water storage tank 20 at the corresponding position and the pressure of the water are balanced so that the inflow of water into the inspection unit 10 side can be automatically restricted.

Of course, the water may be mixed with the dye so as to make it easier to visually confirm the bubbles generated from the surface of the inspection object K, and in some cases, react with the gas injected through the injection hole 16a It is also possible to mix drugs that are converted into specific colors.

As described above, the present invention is not limited to the above-described embodiments, and variations and modifications may be made by those skilled in the art without departing from the scope of the present invention. And such modifications are within the scope of the present invention.

10: Inspection section 11:
12: guide bar 13:
15: sealing means 16: elastic shielding
17: pressurizing portion 19: passage portion
19a: Guide tube 20: Reservoir
21: first tube portion 22: second tube portion
30: air supply part 40: air discharge part
41: closed end 42: sealing drive part
100: Submersible leak test device

Claims (5)

An inspection unit including a pressing unit that presses an upper body of the inspection table with a plurality of opening pipes formed thereon, and a sealing unit that seals the opening pipes, and the side part is sealed so that water flowing through the passage unit formed on the floor surface is stored;
A water reservoir which is provided at a lower side of the inspecting unit in a closed space and stores the water flowing into the inspecting unit through the passageway;
An air supply unit connected to a first pipe portion provided at an upper end of the water storage tank and supplying compressed air to the upper side of the water storage tank; And
A closed end portion that is formed at an end of the second tube portion so as to selectively open an end portion of the second tube portion provided at the other end of the water storage tank and a sealing drive portion that selectively removes the closed end portion from the second tube portion And an air outlet. The method according to claim 1,
And a guide tube portion extending to a bottom surface of the water storage tank so as to have a predetermined length so as to limit the level at which the inspection object is immersed is provided at an end of the passage portion. The method according to claim 1,
The sealing means
An elastic shield provided so as to correspond to an end surface of the opening tube; and a pressing unit for pressing the elastic shield to close the opening and the elastic shield,
And a spray hole for spraying a gas for hermeticity inspection is formed inside the upper surface of the inspection table at a central portion of the elastic shield. The method according to claim 1,
The pressing means
And a lifting and pressing unit having a guide bar extending upwardly from the inspection unit and a fixing protrusion raised and retreated along the longitudinal direction of the guide bar and elastically fixing the outer surface of the inspection table,
Wherein the bottom surface of the inspection portion is provided with an elastic sealing portion which is in close contact with a bottom side opening tube of the inspection table body pressed by the pressing means. delete
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Cited By (8)

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CN107515078A (en) * 2017-09-22 2017-12-26 江门市丰荣金属制品有限公司 A kind of gas leak detection device
CN108680309A (en) * 2018-07-20 2018-10-19 无锡正大轴承机械制造股份有限公司 A kind of solenoid valve tightness test device
CN110146228A (en) * 2019-06-17 2019-08-20 徐州天泓传动设备有限公司 A kind of nitrogen gas spring detection device based on hydraulic pressure air-leakage test technology
KR102028305B1 (en) 2019-06-12 2019-10-02 박영인 leak test and tap screw hole checking apparatus
CN110361141A (en) * 2019-08-27 2019-10-22 桂林电子科技大学 A kind of ice-cream mold air-tightness detection device
CN113932980A (en) * 2021-09-18 2022-01-14 江苏呈森嘉泽能源科技有限公司 Vertical low-temperature heat-insulation gas cylinder airtightness detection system
CN115435980A (en) * 2022-08-12 2022-12-06 江苏江龙汽车系统有限公司 Device and method for rapidly detecting air tightness of automobile lamp
KR20240080020A (en) 2022-11-29 2024-06-05 주식회사 드림엔지니어링 Waterproof and Dustproof Inspection Device

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KR200401828Y1 (en) * 2005-09-13 2005-11-22 주식회사 에스비알 Device testing air leak

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CN107515078A (en) * 2017-09-22 2017-12-26 江门市丰荣金属制品有限公司 A kind of gas leak detection device
CN108680309A (en) * 2018-07-20 2018-10-19 无锡正大轴承机械制造股份有限公司 A kind of solenoid valve tightness test device
KR102028305B1 (en) 2019-06-12 2019-10-02 박영인 leak test and tap screw hole checking apparatus
CN110146228A (en) * 2019-06-17 2019-08-20 徐州天泓传动设备有限公司 A kind of nitrogen gas spring detection device based on hydraulic pressure air-leakage test technology
CN110361141A (en) * 2019-08-27 2019-10-22 桂林电子科技大学 A kind of ice-cream mold air-tightness detection device
CN110361141B (en) * 2019-08-27 2024-04-02 桂林电子科技大学 Ice cream mould gas tightness detection device
CN113932980A (en) * 2021-09-18 2022-01-14 江苏呈森嘉泽能源科技有限公司 Vertical low-temperature heat-insulation gas cylinder airtightness detection system
CN115435980A (en) * 2022-08-12 2022-12-06 江苏江龙汽车系统有限公司 Device and method for rapidly detecting air tightness of automobile lamp
KR20240080020A (en) 2022-11-29 2024-06-05 주식회사 드림엔지니어링 Waterproof and Dustproof Inspection Device

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