KR101224959B1 - Pipe type leak tast machine - Google Patents

Pipe type leak tast machine Download PDF

Info

Publication number
KR101224959B1
KR101224959B1 KR1020120097003A KR20120097003A KR101224959B1 KR 101224959 B1 KR101224959 B1 KR 101224959B1 KR 1020120097003 A KR1020120097003 A KR 1020120097003A KR 20120097003 A KR20120097003 A KR 20120097003A KR 101224959 B1 KR101224959 B1 KR 101224959B1
Authority
KR
South Korea
Prior art keywords
pipe
plate
air
vertical
fastened
Prior art date
Application number
KR1020120097003A
Other languages
Korean (ko)
Inventor
김태학
Original Assignee
(주)부국
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)부국 filed Critical (주)부국
Priority to KR1020120097003A priority Critical patent/KR101224959B1/en
Application granted granted Critical
Publication of KR101224959B1 publication Critical patent/KR101224959B1/en

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00Arrangements for supervising or controlling working operations
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00Protection or supervision of installations
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/022Environment of the test
    • G01N2203/023Pressure
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/04Chucks, fixtures, jaws, holders or anvils

Abstract

PURPOSE: A pipes leak testing device is provided to indicate the extent that a joint portion of a pipe can endure pressure by injecting air of preset pressure into the inside of the pipe. CONSTITUTION: A pipes leak testing device comprises a pipe holding jig(10), a pipe holding device(70), an air supply and cut-off device, and a control device. The pipe holding jig is fixed to a portion of an upper plate(14) of a work table(12) and composed of left fixing jigs(20), a central moving jig, and a right moving jig(60). The pipe holding device stably holds both end portions of the pipe held on the left fixing jigs, the central moving jig, and the right moving jig and simultaneously seals the inside of the pipe. The air supply and cut-off device supplies and cuts off air of preset pressure through the pipe. The control device controls the operation of the pipe holding jig, the pipe holding device, and air supply and cut-off device.

Description

Pipe type leak tast machine

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe leakage tester, and in particular, to hold a plurality of pipes stably and to seal both ends, and to inject air of a pressure set inside the pipe to the extent that the joint portion of the pipe can withstand the pressure (pipes Good and bad parts for the internal air leak) are configured to be displayed on the indicator and touch screen by the control device, and if it is bad, it is configured to mark the pipe.

In general, you should test the presence of leaks at the connection after connecting the pipes. In this leak test, after the entire line of the pipe is completely installed, air or water of a certain pressure is injected into the pipe to test whether there is a leak, that is, whether there is a leak in the joint. At this time, in the case of testing for leaks by injecting air, apply soapy water to the connection part after injecting air and check whether there is leakage of air.

In this way, when the pipe joint leak test is performed after the pipe is installed over the entire line, a problem arises that the correction work becomes very difficult if a leak exists.

In order to solve this problem, Korean Unexamined Utility Model No. 1998-034844 (designated name: jig for pipe joint leak test) has been provided. This prior art blocks one end of the pipe having a joint to prevent leakage of the fluid injected into the pipe and injects a predetermined fluid into the fluid injector at the other end of the pipe to prevent the leak of the pipe having the joint. A pipe joint leak test fixture for testing, comprising: a fluid inlet pipe connected to the fluid injector and installed at the other end of the pipe to inject the fluid into the pipe; A stopper for preventing the fluid injected into the outside from leaking to the outside, a fixture for fixing the fluid injection pipe and the stopper to the pipe, and a fluid installed in the fluid injection pipe and injected into the pipe through the fluid injection pipe. Valve for regulating pressure and the fluid inlet It is provided with a pressure gauge) for measuring the pressure of the fluid injected in the pipes characterized in that the leak can be tested by a joint unit.

The pipe joint leak test fixture configured as described above can easily test whether the pipe joint is leaked at the unit work stage, so that the effect of advancement of work, prevention of rework after pipe laying, and comprehensive air saving can be obtained.

However, the pipe joint leak test fixture is not only suitable for inspecting a large amount of pipe due to the manual work, but also takes a long time. Also, if the injected fluid is water, it is judged visually. This is possible, and if it is air, it is judged that it is soapy water, and the problem that work efficiency falls has arisen.

The present invention has been made to solve such a conventional problem, the present invention is to hold a plurality of pipes at the same time to seal both ends, and to inject air of the pressure set into the pipe joint portion of the pipe pressure The purpose is to provide a pipe leakage tester configured to display the degree of endurance (good or bad for the air leak inside the pipe) on the indicator and touch screen in the control unit, and to mark the pipe if it is defective. have.

Another object of the present invention is to be able to easily test a large number of pipes with a small number of people.

Means for solving the problems of the present invention comprises a plurality of left fixing jig for holding one end of the pipe is fixed to one side of the upper plate of the work table; A central moving jig provided on one side of the left and right moving means mounted on the upper plate of the other region of the left fixing jig to hold the central area of the pipe; A pipe holding jig provided on the left and right moving means of the other side of the center moving jig and configured as a right moving jig for holding the other side of the pipe; A pipe holding device for stably holding both ends of the pipe held on the left fixing jig, the central moving jig, and the right moving jig, and simultaneously sealing the inside of the pipe; An air supply and shutoff device for supplying and blocking air at a predetermined pressure through the sealed pipe; And a control device for controlling the operation of the pipe holding jig, the pipe holding device, the air supply and the blocking device.

According to the pipe leak test according to the present invention, the joints of the pipe can withstand the pressure by holding a plurality of pipes in a stable manner and sealing both ends and injecting air at a pressure set inside the pipe (the inside of the pipe Good and bad parts for air leaks are displayed on the indicator and touch screen on the control unit, and if it is defective, the pipes can be marked so that a large number of pipes can be accurately tested for leaks with a small number of people. The effect is provided.

1 is a front configuration diagram of a pipe leakage tester according to the present invention.
Figure 2 is a plan view of the pipe leakage tester according to the present invention.
3 is a side configuration diagram of a pipe leak tester according to the present invention.
4 and 5 is a front view of the main portion of the pipe leakage tester according to the present invention.
FIG. 6 is an enlarged configuration diagram of part “A” of FIG. 4.
7 is an enlarged sectional view taken along line AA of FIG. 2.
8 is an enlarged cross-sectional view taken along line BB of FIG. 2.
9 is an enlarged cross-sectional view taken along line CC of FIG. 2.
10 and 11 are operational state diagrams of a pipe leakage tester according to the present invention.
12 is a block diagram of an air supply and shutoff device for a pipe leakage tester according to the present invention.
13 is a block diagram of a pipe pen mark device of a pipe leakage tester according to the present invention.
14 and 15 are perspective views of main parts of FIG. 13.
16 is an operational state diagram of FIG.
Figure 17 is a block diagram showing a control device for controlling the operation of the pipe leakage tester according to the present invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a front configuration diagram of a pipe leakage tester according to the present invention, FIG. 2 is a planar configuration diagram of a pipe leakage tester according to the present invention, and FIG. 3 is a view of a pipe leakage tester according to the present invention. It is a side block diagram, and FIG. 4 and FIG. 5 is a principal front block diagram of the pipe leak tester which concerns on this invention.

1 to 5, the pipe leakage tester according to the present invention and the pipe holding jig 10 for stably holding both sides of the pipe (1); A pipe holding device (70) for stably holding the pipe (1) on the pipe holding jig (10) and at the same time completely sealing the inside of the pipe (1); An air supply and shutoff device 120 for supplying and blocking air at a predetermined pressure through the sealed pipe 1; Control device 130 for controlling the operation of the pipe holding jig 10, the pipe holding device 70, the air supply and blocking device 120.

The pipe holding jig 10 is vertically fixed to one region of the upper plate 14 of the work table 12 provided with a moving means at the bottom, and a plurality of left fixings formed in a cylindrical shape to hold one end of the pipe 1. Jig 20; Left and right moving means 30 mounted in the horizontal direction on the upper plate 14 of the other side of the left jig 20; A center moving jig 40 provided to be movable in one side of the left and right moving means 30 to hold a central area of the pipe 1; The central moving jig 40 is provided to be movable on the left and right moving means 30 in the other region, and comprises a right moving jig 60 for holding the other region of the pipe 1.

The left fixing jig 20 is vertically fixed to one side of the upper plate 14, the lower air inlet hole 22a is formed, and a cylindrical lower body 22 having a fastening screw groove 22b formed thereon. Wow; The upper projection 23 has a lower portion detachably screwed to the fastening screw groove 22b of the lower body 22 and a coupling groove 23a to which the connector 1a of one end of the pipe 1 is coupled to the upper portion. It is formed, the central region is composed of the upper finishing member 24 formed through the upper air inlet hole (24a) in communication with the lower air inlet hole (22a).

At this time, the outer peripheral edge of the upper finishing member 24 is formed in the cutting groove 25 in communication with the coupling groove (23a), bending support rod (1a-1) formed bent downward to the connector (1a) of the pipe (1) A seating groove 26 is formed in the upper finishing member 24 under the cutout groove 25, in which an end of the bent support rod 1a-1 is seated.

The left and right moving means 30 includes an inner guide rail 31 and 32 fastened and fixed in a horizontal direction on the upper plate 14 in the other region of the left fixing jig 20; Outer guide bars 33 and 34 fastened and fixed in parallel to the inner guide rails 31 and 32 on the upper plate 14 outside the inner guide rails 31 and 32; The left moving guide plate 35 which is movably coupled to the inner guide rails 31 and 32 is fastened and fixed to the lower side, and the left moving guide plate 36 seated on the upper side of the outer guide bars 33 and 34. and; The right moving guide plate 38 which is movably coupled to the inner guide rails 31 and 32 is fastened and fixed to the lower side, and is mounted on the upper side of the outer guide bars 33 and 34 and guided to the right moving guide plate 38. Is done.

The central moving jig 40 has an upper vertical plate 41 having a plurality of vertical holding grooves 41a into which the hose 1b region of one side of the pipe 1 is inserted and held, and a lower end of the upper vertical plate 41. Fastening horizontally fixed to the upper horizontal plate 42 is fixed to the horizontal, the central vertical plate 43 vertically fixed to the center area of the lower horizontal plate 42, the lower end of the central vertical plate 43 A first moving jig 45 formed of a lower horizontal plate 44 fastened and fixed to an upper portion of the left side moving guide plate 36 of the left and right moving means 30; An upper vertical plate 46 having a plurality of vertical holding grooves 46a into which the thin tube 1c region of one side of the pipe 1 is inserted and held, and an upper water fastened and fixed horizontally to the lower end of the upper vertical plate 46. The flat plate 47, the central vertical plate 48 vertically fastened to the lower end of the upper horizontal plate 47, and horizontally fastened to the lower end of the central vertical plate 48, the left and right of the left and right moving means 30 The movement guide plate 36 includes a second moving jig 50 formed of a lower horizontal plate 49 fastened and fixed to the upper portion of the other side.

The right moving jig 60 includes a lower horizontal fixing plate 61 fastened and fixed to an upper right moving guide plate 38 of the left and right moving means 30; A vertical fixing plate 62 integrally formed with the lower horizontal fixing plate 61 and having a plurality of vertical coupling grooves 62a formed at equal intervals thereon; Vertical fitting grooves 63a are formed at both ends so as to be coupled to the vertical coupling grooves 62a, and the thin tube 1c region of the other side of the pipe 1 is inserted in the central region and is movable to the thin tube 1c. The holding fastener 1d is formed of a holding insertion hole 63 formed with a plurality of insertion grooves 63b.

The center movement jig 40 and the right movement jig 60 are located on the front and outer guide bars 33 and 34 front regions of the left and right movement guide plate 36 and the right movement guide plate 38 of the left and right movement means 30. Locking device 65 for maintaining and releasing the left and right movement of the) is provided.

The locking device 65 is fastened and fixed to the front of the left moving guide plate 36 and the right moving guide plate 38, respectively, the vertical blocking plate 66 is formed with a locking screw hole (66a) in the lower region; It is fastened to the lock screw hole (66a) consists of a lock rotation lever 69 for maintaining and releasing the movement of the left moving guide plate 36 and the right moving guide plate 38.

The pipe holding device 70 is a movable housing 80 provided on the upper plate 14 of one region of the left fixing jig 20 so as to be movable left and right by a left and right moving means 71, and a movable housing 80. A pipe left holder (90) formed in the other upper region and including a left sealing means (85) for sealing the inner diameter of the connector (1a) of the pipe (1) held in the left fixing jig (20); Fastening of the mobile holding bracket 91 fastened to the upper side of the other side of the right moving guide plate 38 and the other side of the pipe 1 provided in the upper region of the mobile holding bracket 91 and held in the central moving jig 40. It consists of a pipe right holder 94 composed of a right sealing means 95 for sealing the inside diameter of the sphere 1d.

The left and right movement means (71) and the inner guide rails (72) (73) fastened and fixed in the horizontal direction on the upper side of the upper plate (14); A movement guide plate 75 having a movable tool 74 movably coupled to the inner guide rails 72 and 73 fastened to and fixed to a lower portion thereof; A horizontal long hole 76 formed horizontally through the upper plate 14 between the inner guide rails 72 and 73; A horizontal air cylinder (78) mounted at a lower portion of the horizontal hole (76) and interposed with the air piston (77) so as to move left and right; It is fixed to the horizontal connecting rod (77a) fixed to the end of the air piston 77, it consists of a vertical connecting member (79) fixed to the moving guide plate 75 through the horizontal long hole 76 vertically.

The movable housing 80 includes a plurality of vertical finish plates 81 vertically partitioned on the upper portion of the movable guide plate 75; It consists of a horizontal finish plate 82 fastened and fixed to the vertical finish plate 81. At this time, the movable housing 80 is fastened to each of the vertical finishing plate 81, respectively fixed fastening bar 83 is fastened to each of the inner guide rails 72, 73 so as to protrude to the upper plate 14 of the outer fixed In contact with the limit switch 84, the operation of the horizontal air cylinder 78 is configured to be stopped.

The left sealing means (85) comprises a plurality of vertical air cylinders (86) mounted at equal intervals perpendicular to the horizontal finishing plate (82) of the mobile housing (80); A plurality of air pistons 87 interposed in the vertical air cylinders 86 so as to be movable upward and downward; A vertical insertion connector 88 fastened to the bottom of the air piston 87 and having an insertion recess 88a formed at the bottom thereof; It is made of a vertical pad (89) of urethane material coupled to the insertion groove (88a) of the vertical insertion connector 88, and is sealed to the upper surface of the connector (1a) of the pipe (1).

The mobile holding bracket 91 includes a horizontal fixing plate 92 fastened and fixed to extend in front and rear surfaces on an upper right side of the right guide plate 38; It consists of a vertical fixing plate 93 fastened vertically fixed to the horizontal fixing plate 92.

The right sealing means (95) is horizontally fastened and fixed to the vertical fixing plate (93) of the mobile holding bracket (91), a plurality of horizontal air cylinders 97 are interposed with the air piston 96 to be movable left and right; A stepped hole 99 is formed by fastening and fixing to an end of the air piston 96 positioned through the vertical fixing plate 93 and having an O-ring insertion groove 98a into which the O-ring 98 is inserted. A nozzle holder 100 having an air discharge hole 101 in communication with 99; A horizontal pad is inserted into the stepped hole 99 of the nozzle holder 100, and an air hole 111 is formed in communication with the air discharge hole 101 to seal the inner diameter of the fastener 1c on the other side of the pipe 1. Consists of 110.

The air supply and shutoff device 120 is mounted on the lower plate 16 of the work table 10, the air tank 121 is provided with a safety valve (121a); An intensifier 122 mounted on the air tank 121 and configured to increase air pressure in the air tank 121; A pressure regulator 123 connected to the air tank 121 to adjust and supply the air pressure boosted to the pressure value set by the controller 130; It is connected to the pressure regulator 123, the air supply line 124 is connected to the lower air inlet hole 22a formed in the lower body 22 of the left fixing jig 20 is connected, the air into the pipe (1) A first solenoid valve 125 which is opened upon supply and closed during a test; An air discharge line 126 connected to an air discharge hole 101 formed in the nozzle holder 100 of the right sealing means 95 constituting the pipe holding device 70 is connected, and air is supplied into the pipe 1. And a second solenoid valve 127 configured to be closed during the experiment and open after the experiment.

The control device 130 is installed in the discharge air line 126 and the pressure sensor 132 for detecting the pressure applied from the pipe (1) during the experiment; A PLC computer 134 for determining whether good or bad for air leaks in the pipe 1 by comparing the sensing signal of the pressure sensor 132 with the set air pressure; It consists of an indicator 136 for displaying the determination value of the PLC computer 134 and a touch screen 138 displayed by the LCD.

At this time, the PLC computer 134 sequentially controls the operation of the pipe holding jig 10, the pipe holding device 70, and the pipe pen mark device 140 to be described later by its own program.

On the other hand, as shown in Figure 13 to 17, when the internal pressure of the pipe (1) in the control device 130 receives a bad, the horizontal finish plate of the mobile housing (80) constituting the pipe holding device (10) 82) The pipe pen mark device 140 provided in the upper region is operated to mark the pipe 1 with a bad mark.

The pipe pen mark device 140 includes a T-shaped upper horizontal reinforcing plate 142 fastened and fixed to the upper portion of the horizontal finishing plate 82 of the mobile housing 80; A plurality of pen mark brackets 150 fixed to each other by maintaining an equal interval in an upper region of the upper horizontal reinforcing plate 142; The pen mark bracket 150 is provided to be movable up and down, respectively, and comprises a pen mark means 160 for marking the defective pipe 1.

The pen mark bracket 150 includes a lower horizontal plate 151 fastened and fixed to the upper end of the upper horizontal reinforcing plate 142; A connecting vertical plate 152 fixed vertically on the lower horizontal plate 151; It consists of an upper horizontal plate 153 fixed horizontally on the connecting vertical plate 152.

The pen mark means 160 is vertically provided on an upper portion of the upper horizontal plate 153 of the pen mark bracket 150, and a plurality of pen mark air cylinders 162 having an air piston 161 interposed therebetween. Wow; A lower end portion of the air piston 161 is fastened and fixed, the upper and lower movements are guided by the guide member 180, and an upper portion of the pen upper holder 170 holding the mark pen 6; The pen lower holder 190 is connected to the lower region of the pen upper holder 170 as a buffer member 200 and the central region of the mark pen 6 is held.

The upper pen holder 170 includes an upper horizontal piece 171 to which the lower end of the air piston 161 is fastened and fixed; A vertical connecting piece 172 formed vertically on the lower end of the upper horizontal piece 171; It is formed horizontally on the lower end of the vertical connecting piece 172, and consists of a lower horizontal piece 173 having a pen fitting hole 173a formed in the center area.

The guide member 180 includes a guide rod 181 fastened and fixed to protrude above the upper horizontal piece 171 of the pen upper holder 170; The guide rod 181 is formed of a guide hole 182 formed through the upper horizontal plate 153 is movably inserted.

The pen lower holder 190 has a front holder 191 is formed so that the center region of the mark pen 6 is coupled, and a mark holder 193 having a screw hole 192 formed on both front surfaces of the front groove 191; Separating holes 194a and through holes 194b are formed to correspond to the screw holes 192 of the mark holder 193, and are fastened by the fastening member 195 to hold the holding piece 196 for holding the mark pen 6. Is done. At this time, the fastening member 195 coupled to the separation hole 194a is formed of a butterfly nut type to easily replace the mark pen 6.

The buffer member 200 has a movable through hole 201 and a fixing screw hole 202 formed correspondingly between the lower horizontal piece 173 of the pen upper holder 170 and the mark holder 193 of the pen lower holder 190. and; A vertical movable rod 210 inserted into the movable through hole 201 so as to be movable and having a lower screwed into the fixing screw hole 202; Interposed on the outer periphery of the vertical movable rod 210 is made of a buffer spring 220 for cushioning the impact when the mark pen 6 falls.

The upper plate 14 of the work table 12 has a pipe holding jig 10, a pipe holding device 70, an air supply and shutoff device 120, a control device 130, and a pen pipe that constitute a pipe differential pressure tester. A power supply switch 142 and a power cutoff switch 144 are provided to supply and cut off power to the mark device 140.

The operation state of the pipe leakage tester according to the present invention configured as described above will be described.

As shown in FIGS. 1 to 9, first, a plurality of pipes 1 to be subjected to an air pressure test are held in a pipe holding jig 10 constituting a pipe leakage tester.

To explain this schematically, the first and second moving jigs 45 and 50 of the plurality of left fixing jig 20, the right moving jig 60, and the central moving jig 40 constituting the pipe holding jig 10 are described. One side, the other side, and the center region of the pipe 1 are inserted into and held in the pipe 1.

That is, when the coupling hole 1a of one end of the pipe 1 is coupled to the coupling groove 23a formed in the upper protrusion 23 of the upper finishing member 24 constituting the left fixing jig 20, the pipe 1 The connector 1a is coupled to the coupling groove 23a, and the bending support bar 1a-1 of the connector 1a is seated in the cutout groove 25 at the outer circumference of the upper finish 24, and the bending support bar 1a- The end of 1) is seated in the seating groove 26 of the upper finish 24, so that the connector 1a is stably held. (See FIG. 6)

At the same time, the hose 1b region of one side of the pipe 1 is inserted and held in the vertical holding groove 41a of the first moving jig 45 constituting the central moving jig 40, and the second moving jig 50 is held. The region of the pipe 1c on one side of the pipe 1 is inserted and held in the vertical holding groove 46a of the pipe 1, and the pipe 1 is inserted into the insertion recess 63b of the holding insertion port 63 constituting the right moving jig 60. The fastener 1d movably inserted into the pipe 1c toward the other side is held at the same time as the region of the thin pipe 1c on the other side is inserted (see FIGS. 4 and 5).

At this time, the locking device 65 is provided at the front and outer guide bars 33 and 34 front regions of the left and right movement guide plate 36 and the right movement guide plate 38 of the left and right movement means 30, thereby providing a central movement. The left and right movements of the jig 40 and the right moving jig 60 are maintained and released.

That is, when the locking pivot lever 69 is rotated to the right in the locking screw hole 66a of the vertical blocking plate 66 fastened to the front of the left moving guide plate 36 and the right moving guide plate 38, respectively, The lock pivot lever 69 is fastened to the lock screw hole 66a of the vertical blocking plate 66 while being in close contact with the front region of the outer guide bars 33 and 34 to maintain the lock. On the contrary, when the lock rotation lever 69 is rotated, the lock is released (see FIG. 7).

In this state, the inside of the pipe 1 is completely sealed and held by the pipe holding device 70. To explain this schematically, the pipe left holder 90 and the pipe right holder 94 constituting the pipe holding device 70 are operated by a control program of the control device 130, thereby completely removing the inside of the pipe 1. It is sealed and held at the same time.

That is, the air piston 77 is moved to the right by the operation of the horizontal air cylinder 78 of the left and right moving means 71 constituting the pipe holding device 70, the vertical connecting rod fixed to the air piston 77 ( 79 is moved to the right along the horizontal hole 76, the movement guide plate 75 is fixed to the vertical connecting rod (79), the inner guide rails (72) (73) as the lower movable port 74 As it moves to the right side, the moving housing 80 moves to the right side (see FIG. 4).

At this time, when the touch bar 83 fastened and fixed to both sides of the vertical finishing plate 81 of the movable housing 80 contacts the limit switch 84 outside the inner guide rails 72 and 73, the horizontal air cylinder ( The operation of 78 is stopped, and the left sealing means 85 of the pipe left holder 90 is located in the upper region of the left fixing jig 20 (see Fig. 2).

At the same time, the vertical air cylinder 86 of the left sealing means 85 is operated so that the air piston 86 moves downward, and the vertical insertion connector 88 and the vertical pad 89 at the bottom of the air piston 87 are operated. As the vertical pad 89 moves downward to close the upper inner diameter of the connector 1a, one end of the pipe 1 is sealed (see FIG. 10).

In this state, the horizontal air cylinder 97 of the right sealing means 95 constituting the pipe right holder 94 is operated so that the air piston 96 moves to the left, and the nozzle is fastened and fixed to the air piston 96. As the holder 100 and the horizontal pad 110 are moved to the left side, the air hole 111 of the horizontal pad 110 comes into close contact with the inner diameter of the fastener 1c on the other side of the pipe 1, The other end is sealed (see Fig. 11).

Thereafter, as shown in FIG. 12, the air of the air tank 121 in which the first solenoid valve 125 constituting the air supply and shutoff device 120 is opened and the pressure is boosted by the pressure intensifier 122 is a pressure regulator ( The lower air inlet hole of the lower body 22 which is adjusted to the pressure value set by the PLC computer 132 of the control device 130 by 123 to constitute the first solenoid valve 125 and the left fixing jig 20 ( Through the air supply line 124 connected between the 22a), it is supplied into the pipe 1 through the upper air inlet hole (24a) of the upper finish (24).

At this time, the first solenoid valve 125 is automatically closed and the second solenoid valve 127 connected to the air discharge hole 101 and the air discharge line 126 of the nozzle holder 100 constituting the right sealing means 95. As the) is automatically closed, air is filled in the air supply line 124, the pipe 1, and the air discharge line 126 to maintain a set pressure.

This state is maintained for the time set in the PLC computer 134 of the control device 130, and then the pressure sensor 132 installed in the air discharge line 126 detects the pressure generated therein and sends this signal to the PLC computer. When it is transmitted to 134, the PLC computer 134 makes a comparison with the set air pressure, and then sets an error range from the current value and if it is out of the error range, it is judged as a defective product for the pipe 1, and the error range. If it is, it is judged to be good and is displayed on the indicator 136, and the LCD is displayed on the touch screen 138 so that the experimenter can know (see FIG. 17).

At this time, the LC computer 134 compares the set air pressure, sets an error range at the current pressure value, and means that the error is out of the error range, and the air leaks from the joint part of the pipe 1. It is present.

As such, when the internal pressure of the pipe 1 is poor in the control device 130, the pipe pen mark provided in the upper region of the horizontal finish plate 82 of the mobile housing 80 constituting the pipe holding device 10. The device 140 is operated to give a bad indication, i.e. a marking, on the pipe 1 (see Figs. 13-15).

Referring to FIG. 16, the pen mark air cylinder 162 of the pen mark means 160 constituting the pipe pen mark device 140 operates to move the air piston 161 downward. And, the upper end of the air piston 161 is fastened and fixed pen upper holder 170 is moved to the bottom, and at the same time the guide rod 181 of the guide member 180 is a guide hole of the upper horizontal plate 153 ( 182 is moved to the lower side to guide the pen upper holder 170.

When the pen upper holder 170 moves downward in this way, the pen lower holder 190 is connected to the lower region of the pen upper holder 170 as the buffer member 200, and the central region of the mark pen 6 is held. Is moved downward so that the lower end of the mark pen 6 is marked (marked) as a color on the pipe 1 determined as defective.

At this time, when the nib of the mark pen 6 touches the pipe 1, the lower part is fastened and fixed to the fixing screw hole 202 of the mark holder 193, and moves to the moving through hole 201 of the lower horizontal piece 173. The vertically movable rod 210 is inserted into the upper portion to move up and down along the moving through hole 201, and at the same time, the shock absorber 220 is compressed and stretched to attenuate an impact to protect the nib.

On the other hand, when the pressure test of the pipe is completed, the pen mark air cylinder 162 of the pen mark means 160 is operated in reverse to move the air piston 161 to the upper side, the lower end of the air piston 161 pen As the upper holder 170 moves upward, the pen lower folder 190 moves upward, waiting for the next operation.

Then, the first solenoid valve 125 to which the air supply line 124 is connected is closed, and the second solenoid valve 127 to which the air venting line 126 is connected is automatically opened to discharge the air therein. do.

Subsequently, the vertical air cylinder 86 of the left sealing means 85 is operated in the opposite direction so that the air piston 86 moves upward, and the vertical insertion connector 88 and the vertical pad 89 at the bottom of the air piston 87 are moved. Is moved upward so that the vertical pad 89 is separated from the upper inner diameter of the connector 1a.

At the same time, the horizontal air cylinder 97 of the right airtight means 95 is operated in reverse to move the air piston 96 to the right, and the nozzle holder 100 and the horizontal pad 110 fastened to the air piston 96 are fixed. As the) moves to the right, the air hole 111 of the horizontal pad 110 is separated from the fastener 1c on the other side of the pipe 1. Thus, the sealing of the pipe 1 is released.

In this state, the pipe 1 is separated from the plurality of left fixing jig 20, the right moving jig 60, and the central moving jig 40 constituting the pipe holding jig 10 to distinguish between good and defective goods and separately stored. Done.

1,3 pipe 1a connector
1a-1: bending support rod 1b: hose
1c: fine tube 1d: fastener
6: mark pen 10: pipe holding jig
12,231: Workbench 14: Upper plate
16: lower plate 20: left fixing jig
22: lower body 22a: lower air inlet hole
22b: tightening screw groove 23: upper projection
23a: coupling groove 24: upper finish
25: incision groove 26: seating groove
30: left and right moving means 31, 32: inner guide rail
33,34: Outer guide bar 35,37: Left and right moving holes
36,38: Left and right guide plate 40: Center moving jig
41a: vertical holding groove 41,46: upper vertical plate
42,47: Upper horizontal plate 43,48: Center vertical plate
44,49: Lower horizontal plate 45,50: First and second moving jig
69: right moving jig 61: lower horizontal fixing plate
62: vertical fixing plate 62a: vertical coupling groove
63: holding insertion hole 63a: vertical fitting groove
63b: insertion groove 65: locking device
66: vertical blocking plate 66a: locking screw hole
69: lock rotation lever 70: pipe holding device
71: left and right movement means 72,73: inner guide rail
74: moving port 75: moving guide plate
76: horizontal long hole 77: air piston
78: horizontal air cylinder 79: vertical connecting rod
80: mobile housing 82: mobile housing
85,95: Left and right airtight means 86: Vertical air cylinder
87,96: Air piston 88: Insertion connector
88a: insertion groove 89: vertical pad
90,94: Left and right pipe holder 91: Moving holding bracket
93: vertical fixing plate 97: horizontal air cylinder
98: O-ring 98a: O-ring insertion hole
99: step gap 100: nozzle holder
101: air discharge hole 111: air ball
110: horizontal pad 120: air supply and blocking device
121: air tank 122: intensifier
123: pressure regulator 124: air supply line
125,127: 1st, 2nd solenoid valve 126: air discharge line
130: control device 132: pressure sensor
134: PCL computer 136: indicator
138: touch screen 140: pipe pen mark device
150: pen mark bracket 153: upper horizontal plate
160 pen mark means 161 air cylinder
162: pen mark air cylinder 170: pen upper holder
171: upper horizontal piece 172: vertical connecting piece
173: lower horizontal piece 173a: pen insertion hole
174: lower horizontal piece 190: pen lower holder
191: front groove 192: screw hole
193: Mark holder 194a: Separation hole
194b: Through hole 195: Fastening member
196: holding piece 200: buffer member
201: mobile through hole 202: fixed screw hole
210: vertical moving rod 220: buffer spring

Claims (14)

  1. A plurality of left fixing jigs 20 fixed to one region of the upper plate 14 of the work table 12 to hold one end of the pipe 1; A central moving jig 40 for holding the central area of the pipe 1 provided in one side of the left and right moving means 30 mounted on the upper plate 14 of the other area of the left fixing jig 20; A pipe holding jig (10) provided on the left and right moving means (30) above the center moving jig (40), the right moving jig (60) for holding the other area of the pipe (1);
    A pipe holding device for stably holding both ends of the pipe 1 held on the left fixing jig 20, the center moving jig 40, and the right moving jig 60 and sealing the inside of the pipe 1. 70;
    An air supply and shutoff device (120) for supplying and blocking air at a predetermined pressure through the sealed pipe (1); And
    A control device (130) for controlling the operation of the pipe holding jig (10), pipe holding device (70), air supply and shutoff device (120);
    Pipe leakage tester comprising a.
  2. According to claim 1, wherein the left fixing jig 20
    A cylindrical lower body 22 which is fastened and fixed perpendicularly to an upper one side region of the upper plate 14 and has a lower air inlet hole 22a and a fastening screw groove 22b formed thereon;
    An upper protrusion 23 having a lower portion detachably screwed to a fastening screw groove 22b of the lower body 22 and having a coupling groove 23a to which a connector 1a of one end of a pipe 1 is coupled to an upper portion thereof. Is formed, the upper air inlet (24a) is formed through the upper finish body 24 in communication with the lower air inlet (22a) in the central region,
    An incision groove 25 is formed in communication with the coupling groove 23a at the outer circumference of the upper finish body 24, and a bending support rod 1a-1 bent downwardly is connected to the connector 1a of the pipe 1. ,
    Pipelet tester, characterized in that the seating groove (26) for the end of the bending support rod (1a-1) is formed in the upper finishing member (24) below the cutting groove (25).
  3. According to claim 1, wherein the left and right moving means (30)
    Inner guide rails (31) (32) fastened and fixed in a horizontal direction on the upper plate (14) in the other region of the left fixing jig (20);
    An outer guide bar (33) (34) fastened and fixed in parallel to the inner guide rail (31) (32) on the upper plate (14) outside the inner guide rail (31) (32);
    The left moving hole 35 which is movably coupled to the inner guide rails 31 and 32 is fastened and fixed to the lower side, and the left moving guide plate 36 seated and guided on the outer guide bars 33 and 34. )and;
    The right side movement guide plate 38, which is movably coupled to the inner guide rails 31 and 32, is fastened and fixed to the lower side, and is seated on the upper side of the outer guide bars 33 and 34 and guided to the right side movement guide plate 38. Pipe leakage tester, characterized in that consisting of).
  4. The method of claim 1, wherein the center jig 40
    An upper vertical plate 41 having a plurality of vertical holding grooves 41a into which the hose 1b region of one side of the pipe 1 is inserted and held; An upper horizontal plate 42 fastened and fixed horizontally to a lower end of the upper vertical plate 41; A central vertical plate 43 fastened and fixed perpendicularly to a central area of the lower portion of the upper horizontal plate 42; The first moving jig 45 is fastened and fixed horizontally to the lower end of the central vertical plate 43, and is made of a lower horizontal plate 44 fastened and fixed to an upper portion of the left moving guide plate 36 of the left and right moving means 30. ); And
    An upper vertical plate 46 having a plurality of vertical holding grooves 46a into which the thin pipe 1c region of one side of the pipe 1 is inserted and held; An upper horizontal plate 47 fastened and fixed horizontally to the lower end of the upper vertical plate 46; A central vertical plate 48 fastened and fixed vertically to a lower end of the upper horizontal plate 47; The second movable jig 50 is fastened and fixed horizontally to the lower end of the central vertical plate 48, consisting of a lower horizontal plate 49 fastened and fixed to the upper side of the left side movement guide plate 36 of the left and right movement means 30. ;
    Pipe leakage tester, characterized in that configured to include.
  5. According to claim 1, wherein the right moving jig 60
    A lower horizontal fixing plate 61 fastened and fixed to an upper right side guide plate 38 of the left and right moving means 30;
    A vertical fixing plate 62 formed integrally with the lower horizontal fixing plate 61 and having a plurality of vertical coupling grooves 62a formed at equal intervals thereon;
    Vertical fitting grooves 63a are formed at both ends so as to be coupled to the vertical coupling grooves 62a, and the thin tube 1c region of the other side of the pipe 1 is inserted into the central region and is movable to the thin tube 1c. Pipe leakage tester, characterized in that consisting of a holding insertion hole (63) formed with a plurality of insertion grooves (63b) holding the inserted fastener (1d).
  6. According to claim 1, wherein the pipe holding device 70
    The movable housing 80 provided to be movable by the left and right moving means 71 on the upper plate 14 of one region of the left fixing jig 20, and the pipe 1 provided on the other upper region of the movable housing 80. A pipe left holder (90) consisting of a left sealing means (85) for sealing the inner diameter of the connector (1a);
    A moving holding bracket 91 fastened and fixed to the upper right side of the right moving guide plate 38 of the left and right moving means 30, and a fastener of the other side of the pipe 1 provided in the upper region of the moving holding bracket 91. (1d) Pipe leakage tester, characterized in that it comprises a pipe right holder (94) consisting of a right sealing means (95) for sealing the inner diameter.
  7. According to claim 6, wherein the left and right moving means (71)
    Inner guide rails 72 and 73 fastened to one side of the upper plate 14 in a horizontal direction;
    A movement guide plate 75 having a movable tool 74 movably coupled to the inner guide rails 72 and 73 at a lower portion thereof;
    A horizontal long hole 76 horizontally penetrating the upper plate 14 between the inner guide rails 72 and 73;
    A horizontal air cylinder (78) mounted in the lower region of the horizontal hole (76) and interposed with the air piston (77) so as to move left and right;
    Pipe leakage tester, characterized in that it is fixed to the end of the air piston (77), consisting of a vertical connecting rod (79) fixed to the movable guide plate (75) through a horizontal long hole (76) vertically.
  8. The method of claim 6, wherein the left sealing means (85)
    A plurality of vertical air cylinders 86 mounted at equal intervals perpendicular to the horizontal finishing plate 82 of the movable housing 80;
    A plurality of air pistons 87 interposed in the vertical air cylinders 86 so as to be movable upward and downward;
    A vertical insertion connector 88 fastened to the bottom of the air piston 87 and having an insertion recess 88a formed at a lower end thereof;
    Pipe leakage tester, characterized in that composed of a vertical pad (89) coupled to the insertion recess (88a) of the vertical insertion connector (88), and sealed to the upper surface of the connector (1a) of the pipe (1).
  9. The method of claim 6, wherein the right sealing means (95)
    A plurality of horizontal air cylinders 97 fastened horizontally to the vertical fixing plate 93 of the movable holding bracket 91 and interposed with an air piston 96 so as to be movable left and right;
    A stepped hole 99 is formed to be fastened and fixed to an end of the air piston 96 positioned through the vertical fixing plate 93, and an O-ring inserting groove 98a is inserted into the other surface. A nozzle holder 100 in which an air discharge hole 101 is formed in communication with the ball 99;
    Is inserted into the stepped hole 99 of the nozzle holder 100, the air hole 111 is formed in communication with the air discharge hole 101 is horizontal for sealing the inner diameter of the fastener (1c) of the other side of the pipe (1) Pipe leakage tester, characterized in that consisting of a pad (110).
  10. According to claim 1, wherein the air supply and shutoff device 120
    An air tank 121 mounted on an upper portion of the lower plate 16 of the work table 12;
    An intensifier 122 mounted on an upper portion of the air tank 121 to increase air pressure in the air tank 121;
    A pressure regulator 123 connected to the air tank 121 and configured to supply and adjust the pressure of the boosted air to a pressure value set by the controller 130;
    It is connected to the pressure regulator 123, the air supply line 124 is connected to the lower air inlet hole 22a formed in the lower body 22 of the left fixing jig 20 is connected, the closed pipe (1) A first solenoid valve 125 configured to open when air is supplied to the inside and to close when tested;
    The air discharge line 126 is connected to the air discharge hole 101 formed in the nozzle holder 100 of the right sealing means 95 constituting the pipe holding device 70, the inside of the sealed pipe (1) Pipe leakage tester, characterized in that consisting of the second solenoid valve 127 is configured to be closed during the air supply and the experiment, and to be opened after the experiment.
  11. According to claim 1, wherein when the air pressure of the pipe (1) in the control device 130 in the upper region of the horizontal closing plate 82 of the mobile housing 80 constituting the pipe holding device 70 is bad, A pipe pen mark device 140 is provided for marking the pipe 1,
    The pipe pen mark device 140
    A plurality of pen mark brackets 150 fastened and fixed by maintaining equal intervals in an upper region of the upper horizontal reinforcing plate 142 having a T-shape fastened and fixed to an upper portion of the horizontal finishing plate 82 of the mobile housing 80; And
    A plurality of pen mark air cylinders 162 disposed vertically on the upper horizontal plate 153 of the pen mark bracket 150 and interposed with an air piston 161 so as to be movable up and down; A lower end portion of the air piston 161 is fastened and fixed, the upper and lower movements are guided by the guide member 180, and an upper portion of the pen upper holder 170 holding the upper portion of the mark pen 6; A pen mark means 160 connected to a lower portion of the pen upper holder 170 as a buffer member 200 and having a pen lower holder 190 holding a central region of the mark pen 6;
    Pipe leakage tester, characterized in that configured to include.
  12. The method of claim 11, wherein the pen upper holder 170
    An upper horizontal piece 171 on which a lower end of the air piston 161 is fastened and fixed;
    A vertical connection piece 172 formed vertically on a lower end of the upper horizontal piece 171; It is formed horizontally at the lower end of the vertical connecting piece 172, and consists of a lower horizontal piece 173 formed with a pen fitting hole 173a in the center area,
    The pen lower holder 190 is
    A front holder 191 is formed so that the center region of the mark pen 6 is coupled, and a mark holder 193 having screw holes 192 formed on both front surfaces of the front groove 191;
    Separating holes 194a and through holes 194b are formed to correspond to the screw holes 192 of the mark holder 193, and are fastened by the fastening member 195 to hold the holding pen 196 for holding the mark pen 6. Pipe leakage tester, characterized in that consisting of).
  13. The method of claim 11, wherein the buffer member 200
    A moving through hole 201 and a fixing screw hole 202 formed correspondingly between the lower horizontal piece 173 of the pen upper holder 170 and the mark holder 193 of the pen lower holder 190;
    A vertical movable rod 210 inserted into the movable through hole 201 so as to be movable, and having a lower portion screwed into the fixing screw hole 202;
    Pipe leakage tester, characterized in that composed of a buffer spring (220) for buffering the shock when the mark pen (6) is lowered on the outer periphery of the vertical movable rod (210).
  14. The method of claim 1, wherein the control device 130
    A pressure sensor 132 installed in the air discharge line 126 of the air supply and shutoff device 120 to detect a pressure applied from the pipe 1 during the experiment;
    A PLC computer 134 for determining whether good or bad for air leaks in the pipe 1 by comparing the sensing signal of the pressure sensor 132 with the set air pressure;
    It consists of an indicator 136 for displaying the determination value of the PLC computer 134 and a touch screen 138 displayed by the LCD,
    The PLC computer (134) is a pipe leakage tester, characterized in that configured to control the overall operation of the pipe holding jig (10), the pipe holding device (70) and the pipe pen mark device (140).
KR1020120097003A 2012-09-03 2012-09-03 Pipe type leak tast machine KR101224959B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120097003A KR101224959B1 (en) 2012-09-03 2012-09-03 Pipe type leak tast machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120097003A KR101224959B1 (en) 2012-09-03 2012-09-03 Pipe type leak tast machine

Publications (1)

Publication Number Publication Date
KR101224959B1 true KR101224959B1 (en) 2013-01-29

Family

ID=47842384

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120097003A KR101224959B1 (en) 2012-09-03 2012-09-03 Pipe type leak tast machine

Country Status (1)

Country Link
KR (1) KR101224959B1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101398411B1 (en) * 2013-03-06 2014-05-27 주식회사 엠앤디 Fluid leakage quantity measuring method of valve
CN104128809A (en) * 2014-07-01 2014-11-05 浙江吉利控股集团有限公司 Unblocking and blocking type clamp positioning device
CN104865009A (en) * 2015-04-24 2015-08-26 沈阳拓荆科技有限公司 Heating disc leakage detection substitution tool
KR20160022539A (en) * 2014-08-20 2016-03-02 김정호 Automotive fuel, airtight inspect of pipe unit for oil supply and a washer
KR101619714B1 (en) * 2015-08-13 2016-05-11 위성길 High pressure leak tester for circular-tube

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100954757B1 (en) 2009-12-31 2010-04-28 전치원 A car for door grass holder assembly apparatus
KR100996237B1 (en) 2008-10-24 2010-11-24 대우조선해양 주식회사 Seal apparatus for leak testing of weding pipe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100996237B1 (en) 2008-10-24 2010-11-24 대우조선해양 주식회사 Seal apparatus for leak testing of weding pipe
KR100954757B1 (en) 2009-12-31 2010-04-28 전치원 A car for door grass holder assembly apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101398411B1 (en) * 2013-03-06 2014-05-27 주식회사 엠앤디 Fluid leakage quantity measuring method of valve
CN104128809A (en) * 2014-07-01 2014-11-05 浙江吉利控股集团有限公司 Unblocking and blocking type clamp positioning device
KR20160022539A (en) * 2014-08-20 2016-03-02 김정호 Automotive fuel, airtight inspect of pipe unit for oil supply and a washer
KR101628473B1 (en) * 2014-08-20 2016-06-08 김정호 Automotive fuel, airtight inspect of pipe unit for oil supply and a washer
CN104865009A (en) * 2015-04-24 2015-08-26 沈阳拓荆科技有限公司 Heating disc leakage detection substitution tool
KR101619714B1 (en) * 2015-08-13 2016-05-11 위성길 High pressure leak tester for circular-tube

Similar Documents

Publication Publication Date Title
CN201028986Y (en) Air-tightness detecting machine for engine cylinder head assembly
CN101858818B (en) Testing device for detecting sealing property of delivery valve matching parts
CN101788372A (en) Gas tightness detection device
EP2776703B1 (en) METHOD OF TESTING A GAS INJECTOR VALVE AND A SYSTEM FOR performing THE METHOD
CN201207013Y (en) Detecting machine for airtightness of oil tank
KR200401828Y1 (en) Device testing air leak
KR101370591B1 (en) Apparatus for testing valve
CN105738051B (en) Bellows air tightness detection equipment and its detection method
CN202420793U (en) Test bed for detecting sealing performance of parts of engine oil coolers
CN203534772U (en) Automatic leakage testing device
CN202814651U (en) Dry test machine used for valve seal test
KR101158401B1 (en) Hydraulic pressure test machine for pipes
CN104048801B (en) Charge air cooler visual detection pressure testing table
US6886389B1 (en) Systems and methods for detecting and locating leaks in internal pressure vessels
CN207585849U (en) A kind of valve cock air tightness detection mechanism
CN104165734B (en) End cap for testing ball valve sealing
CN201589690U (en) Air tightness detection machine of cylinder head of automobile engine
CN104227302B (en) Integral solder and detecting device for stake body
CN103196633A (en) Air impermeability detection device
CN103954409B (en) Air tightness detection apparatus and method of work thereof after engine sump tank robot coating
CN101696899A (en) Maintenance-free detection device and method thereof of air tightness of small cell cover
CN103808472A (en) Automatic diving leakage testing machine for water pump semi-finished product
CN104139502B (en) A kind of portable injection mold assembling test detection device
CN105067193A (en) Performer leak detector and application method thereof
CN104132788B (en) One turns to the airtight detection method of casing body and detection platform

Legal Events

Date Code Title Description
A201 Request for examination
A302 Request for accelerated examination
E902 Notification of reason for refusal
N231 Notification of change of applicant
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20151118

Year of fee payment: 4

LAPS Lapse due to unpaid annual fee