CN207600677U - A kind of air-tightness detection device - Google Patents

Abstract

The utility model provides a kind of air-tightness detection device, part to be detected includes inlet and outlet, inlet and outlet is connected by the sealing channel in part to be detected, detection device includes water tank, air supply system and electric control system, the clear water of part to be detected can be totally submerged by being filled in water tank, detection device, which further includes, can drive part to be detected to be totally submerged the driving device in clear water, and part to be detected is fixed on the drive means by fixing device；The appendix of the air supply system and the import of part to be detected are tightly connected, and the outlet front end of part to be detected is equipped with dismountable locking device；The electric control system provides the power supply of detection device, and driving device, air supply system are connect with electric control system electrical connection or signal.The utility model can effectively judge the air-tightness of part to be detected, quickly find the Gas leak position of part to be detected, more accurate than the prior art, have more intuitive effective basis for estimation.

Description

A kind of air-tightness detection device

Technical field

The utility model is related to air-leakage test technical fields, and in particular to a kind of air-tightness detection device.

Background technology

Domestic or commercial water purifier is both needed to water filtering device to be used, including by a stent and the assembling of multiple filter cartridge seats Into engine base, multiple and different purposes filter core be installed on step by step in its corresponding filter cartridge seat and detachable, constitute element kit. There are the sealing waterway for supplying water and passing in and out in single filter cartridge seat or the inside of filter core, and filter cartridge seat is docked with cartridge seal and internal phase Logical, being also that sealing docking is simultaneously internal between filter cartridge seat communicates, both docking are typically the bullet using buckle structure and sealing ring Power realizes sealing；On assembled machine, the water inlet of the first order filter cartridge seat of element kit, most final stage filter cartridge seat Water outlet is to being interlinked to the outside.

Fig. 1 is a kind of common filter cartridge construction schematic diagram, and filter core includes the water feeding one-way valve 101 of oral area, shell, is packaged in Filtering material therein and the other component for forming water route, the shell of filter core is also referred to as filter flask 103, generally include bottle cylinder, with Cooperation lower bottle cylinder, the material of bottle cylinder is plastics, and upper bottle cylinder one end is the installation interface with filter cartridge seat, and the other end is being processed Be unlimited before completion, generally by rotation fusion welding mode rotation fusion welding at 102 with lower bottle cylinder fusion curing dock, will filter Plug is packaged in bottle, and the center of filter core stick, which has, opens foraminate central tube 104, central tube along in tube wall surrounding and length direction It is wrapped up outside 104 by filtering material；In upper bottle cylinder interface equipped with import check valve 101 control water flow direction and in filter core stick Heart pipe 104 connects, and the mouth position docked with filter cartridge seat is equipped with sealing ring, and the bottom of lower bottle cylinder is closing, in this way, single only filter Core inner all forms a closed water flow circuits.

Although the filter core internal structure of different function have differences, all there is water inlet, filter, the circuit of effluent functions, The higher operating pressure of tolerance is required for, its air-tightness, several filter cores and corresponding machine can be detected with same way The filtering water route of element kit is constituted after seat abutting joint, the water that need to be filtered is flowed into from first filter cartridge seat water inlet, through filter 101 influent side of check valve of core interface end enters in filter core bottle cylinder, again through filter core stick after being filtered under larger pressure by filter core stick Central tube 104 from the circuit of interface flow out, sequentially into next filter cartridge seat and filter core, finally go out from the filter cartridge seat of least significant end It flows out at the mouth of a river.

Part uses the water purifier of reverse osmosis membrane filter element, into the water part filtering of reverse osmosis membrane filter element after become net Water, and another part then from the outflow of other water channels, participation is recycled or is fallen, therefore this kind of machine directly as discharge of wastewater next time The filter cartridge seat docked on device with reverse osmosis membrane filter element is additionally provided with an interface for waste water outflow, for this kind of machine, " filter The water inlet of core assembly " entirety is one, and water outlet is two, if using two steps ro membrane filter, water outlet is just It it is three, the rest may be inferred by analogy.

Inside water pressure under filter core normal operating conditions is higher, outstanding in the water purifier inside water pressure for having used reverse osmosis technology It is high, needs upper and lower bottle cylinder revolving fusion welding in filter core production process in addition, i.e.,：The engaging portion for making upper and lower bottle cylinder is high in opposite directions Speed rotation, is closely adhered to together, whether the intensity of soldered directly influences can after frictional heat melts engaging portion Normal work, than global formation, it is this rotation fusion welding mode with greater need for pay close attention to its heat seal strength and leakproofness it is whether up to standard.Always It, water purifier requires filter cartridge seat, the structure compressive resistance of filter core and air-tightness strictly, to need to detect each in the manufacturing Whether enough pressure is resistant at filter cartridge seat, filter core and docking between the two without revealing.

Currently used method is to close the port of export of filter cartridge seat or element kit, and the sky of elevated pressures is passed through in it It after gas, persistently monitors whether the air pressure of components interior to be checked declines to judge by air gauge, is meaned if finding that pressure declines Leakage, the filter cartridge seat or filter core should be used as defective work rejecting.Leak test detection in cannot make filter core stick cross water or other Liquid, in order to avoid remaining has water in filtering material and machine water route, dispatch from the factory reach consumer's hand to machine in use it is longer when It is interior to go mouldy or grow bacterium etc., influence user's normal use.

Component to be detected is consistent with normal installation use state, i.e., filter cartridge seat, which is mutually butted, is fixedly mounted on stent, Filter core abutting joint forms that there are one water inlet one or two water outlet, internal watercourses to communicate in corresponding filter cartridge seat Element kit is whole, and the water outlet of component is blocked with pipe plug, water inlet side then connect compressed air pipe fitting, switch valve, Pressure gauge, into element kit to be detected, injecting compressed air turns off the switch valve after reaching authorized pressure, continues one minute, from pressure The apparent element kit internal pressure of examining of power does not have decline then to think qualified；If pressure declines, then mean there are leakage point, as Leakage point is wherein, it may be necessary to replace component one by one and investigate, until air pressure no longer declines, prove element kit qualification.

Above-mentioned detection method has the disadvantages that：

1st, the sensitivity of air gauge in itself is insufficient and visual angle and the skill of pressure gauge corresponding data are read by observer Influence, it is difficult to find in time slight leak point or easily generate erroneous judgement；

2nd, if it find that air pressure declines phenomenon, the long period is needed to be found out very by replacing the method for suspicious element one by one Just defective component, inspection detection leakage efficiency are very low.

Other than water purifier filter element component, there are the above problems in existing part air-leakage test.

Utility model content

To solve the above problems, the utility model provides a kind of air-tightness detection device, can faster, accurately find Faulty goods and rejected region improve detection efficiency and reliability.

To achieve these goals, the technical solution of the utility model is as follows：

A kind of air-tightness detection device, part to be detected include inlet and outlet, and inlet and outlet is by close in part to be detected Channel connection is sealed, detection device includes water tank, air supply system and electric control system, fills to be totally submerged in water tank and treat The clear water of detection piece, detection device, which further includes, can drive part to be detected to be totally submerged the driving device in clear water, part to be detected It is fixed on the drive means by fixing device；

The appendix of the air supply system and the import of part to be detected are tightly connected, and the outlet of part to be detected is equipped with can The locking device of dismounting；

The electric control system provides the power supply of detection device, and driving device, air supply system are and electrical control System is electrically connected or signal connection.

Further, the driving device includes that the swing arm that part to be detected is rotated up and down can be driven, and the fixing device is set It puts in the end of swing arm.

Further, the swing arm includes left swing arm and right swing arm, and left swing arm is set to above the left side of water tank, right swing arm It is set to above the right side of water tank；The electric control system is equipped with default and controls the sequence that horizontal swinging arm respectively acts with continuing The function button of time；

The driving device is actuating device of atmospheric pressure, one kind in fluid pressure drive device, electrical motor gearshift movement mechanisms Or a variety of combination；The actuating device of atmospheric pressure includes cylinder drive component, and cylinder drive component is connected with driving air pipe line And solenoid valve；The driving air pipe line is connect with the air supply system；

The fixing device includes the rapid mounting clamp to cooperate and quick folder, and rapid mounting clamp is located at quick folder Both sides, quick folder are connect with telescopic rod.

Further, the appendix pass sequentially through T joint, hose simultaneously with part to be detected fixed on left swing arm Fixed part import sealing connection to be detected in import, right swing arm.

Further, the inlet and outlet of the part to be detected is sealedly connected with interface block, the interface block with into Mouth, the interface exported are equipped with sealing element.

Further, the front end of the import is equipped with pressure regulator valve.

Further, the inlet and outlet is mounted on pressure gauge.

Further, the locking device is air bleeding valve.

Further, which is characterized in that the part to be detected is the water purifier filter element component and its outer part being tightly connected One or more combinations in part；

The element kit includes the engine base being assembled by a stent and multiple filter cartridge seats, and filter cartridge seat is mounted on stent On, filter core has been removably installed in filter cartridge seat；There are the sealing waterway for supplying water and passing in and out in single filter cartridge seat or the inside of filter core, Simultaneously inside communicates filter cartridge seat with cartridge seal docking, is also that simultaneously inside communicates for sealing docking between filter cartridge seat；

There is sealing channel in the peripheral components, sealing channel is docked with the sealing waterway sealing in element kit and inside It communicates.

Further, when the part to be detected is filter core, air-tightness detection device is special equipped with the detection without leakage defect With standard filter cartridges seat；

When the part to be detected is filter cartridge seat, air-tightness detection device is filtered equipped with the detection application specific standard without leakage defect Core；

When the part to be detected is the peripheral components of element kit, air-tightness detection device is equipped with the inspection without leakage defect Survey application specific standard element kit.

The utility model compared with prior art, has the advantages that：

Part to be detected is integrally immersed in clear water by driving device, whether have bubble emerge, can be effective if observing in water Judge the air-tightness of part to be detected, it, can be with by finding out bubble starting point and confirming the point is in which position of which component The Gas leak position of part to be detected is quickly found, it is more accurate than the prior art, there is more intuitive effective basis for estimation.

The utility model can be used for the air-tightness of detection one component such as filter core, filter cartridge seat, can be used for detection by more The component that a component the assembles such as air-tightness of element kit, element kit and peripheral components so that the utility model is in reality Can a variety of testing requirements be met with a tractor serves several purposes in the application of border, strong applicability is widely used.

By setting pressure regulator valve in input end, make air-tightness detection device while air-tightness is detected, moreover it is possible to which detection is treated Whether detection piece is resistant to enough pressure without revealing.

Automatic alternately submergence detection is carried out using two or more sets parts to be detected, reduces the working strength of operating personnel, Detection efficiency is greatly improved.

Vent valve is installed additional in exit, it, will before part to be detected is unloaded in preparation after detection finishes, air switching valve is closed After this vent valve opens the portion gas released and retained inside part to be detected, part internal pressure to be detected is dropped to close to normal pressure, It may be such that the component that dismounting detection finishes is more convenient laborsaving.

Description of the drawings

Fig. 1 is common water purifier filter cartridge construction figure；

Fig. 2 is the structure chart of air-tightness detection device in the utility model embodiment 1；

Fig. 3 is the structure chart of air-tightness detection device in the utility model embodiment 2；

Fig. 4 be the utility model embodiment 2 in air-tightness detection device working state schematic representation, solid line represent swing arm and The original state of part to be detected, dotted line represent the state that swing arm drives part to be detected to reach test position；

Fig. 5 is the fixture structure figure of air-tightness detection device in the utility model embodiment.

Wherein, 101- water feeding one-way valves, 102- are revolved at fusion welding, 103- filter flasks, 104- central tubes, 1- parts to be detected, 11- Import, 110- water inlets, 12- outlets, 120- water outlets, 121- locking devices, 122- air outlet pipes, 1221- air bleeding valves, 13- are close Seal channel, the first element kits of 14-, the second element kits of 15-, 2- water tanks, 3- air supply systems, 31- appendixs, 32- tune Pressure valve, 33- solenoid valves, 34- pressure gauges, 4- driving devices, 41- swing arms, 411- left swing arms, 412- right swing arms, 413- interface blocks, 42- cylinder drive components, 43- driving air pipe lines, 5- fixing devices, 51- rapid mounting clamps, 52- are quickly pressed from both sides, and 53- stretches Bar.

Specific embodiment

In order to the structure feature to utility model and it is reached the effect of have a better understanding and awareness, to preferable Embodiment and attached drawing cooperation detailed description, be described as follows：

Embodiment 1

As shown in Figure 1, a kind of air-tightness detection device, part 1 to be detected includes import 11 and outlet 12, import 11 and outlet 12 are connected by sealing channel 13, and detection device includes electric control system and water tank 2, fill in water tank 2 can be totally submerged it is to be checked The clear water of part 1 to be surveyed, driving device 4 is equipped with above the side of water tank 2, driving device 4 is fixed with part 1 to be detected by fixing device 5, Driving device 4 drives part 1 to be detected to be completely submerged in clear water；

The import 11 of part 1 to be detected is tightly connected with the appendix 31 of air supply system 3, and the front end of import 11 is equipped with sky Exhaust switch valve, 12 front end of outlet of part 1 to be detected are equipped with dismountable locking device 121；

Electric control system provide detection device power supply, driving device 4, air supply system 3 with electrical control system System electrical connection or signal connection.

Above-mentioned part to be detected 1 can be a component or the component assembled by multiple components, by multiple portions When part assembles, each components interior is equipped with sealing channel, and the sealing channel inside adjacent component is docked and communicated, docking Place is sealing docking.

When detecting air-tightness using above-mentioned air-tightness detection device, include the following steps：

(1) electric control system is opened, part 1 to be detected is fixed on by fixing device 5 in driving device 4, and will be treated It is all closed by locking device 121 at 12 end of outlet of detection piece 1；

(2) appendix 31 and 1 import 11 of part to be detected to be measured are connected, starts air supply system 3, in part 1 to be detected Sealing channel 13 in be full of air；

(3) start driving device 4,1 entirety of part to be detected is immersed in clear water；

(4) part 1 to be detected is made to stand a moment in water, whether examine has bubble to emerge；If bubble-free is emerged, then treat The air-tightness of all components in detection piece 1 is qualified；If bubble is emerged as found, find out bubble starting point and confirm at the point Which position of which component in part 1 to be detected, as leakage point at the docking of two components but is being treated not in part 1 to be detected The other positions of a certain component in detection piece 1 then illustrate that the air-tightness of this component is unqualified；If leakage point is in part 1 to be detected In two components docking at, then can attempt suitably to stir the component at docking, observe bubble, think to be detected if bubble collapse Part 1 is qualified, emerges if there is bubble, then is replaced with component of the flawless part replacement of standard at this until bubble collapse Component to be unqualified；

(5) part 1 to be detected is taken out from water, it is for use after acceptable parts are unloaded, continue to detect next time.

Embodiment 2

A kind of air-tightness detection device, as shown in figure 3, part to be detected 1 is element kit, element kit is included by a branch The engine base of frame and multiple filter cartridge seats composition, filter cartridge seat is rack-mount, and filter core has been removably installed in filter cartridge seat；Single The inside of filter cartridge seat or filter core has the sealing waterway for supplying water and passing in and out to seal channel, and filter cartridge seat is docked with cartridge seal and inside It communicates, being also that sealing docking is simultaneously internal between filter cartridge seat communicates.

Air-tightness detection device includes electric control system and rack, and rack is equipped with water tank 2, and being filled in water tank 2 can be complete The clear water of full submergence element kit, the side top of water tank 2 are equipped with driving device 4, and driving device 4 is equipped with swing arm 41, swing arm 41 One end is vertically and fixedly provided with element kit by fixing device 5, and the other end and the driving device 4 of swing arm 41 are articulated and connected, driving dress Putting 4 driving swing arms 41 drives element kit to carry out being rotated up and down movement；The angle of rotation is more than or equal to 90 °, it is ensured that be detected Element kit can be completely submerged in clear water.

Above-mentioned driving device 4 can be actuating device of atmospheric pressure 4, fluid pressure drive device 4 or motor and gear machinery dress It puts.The present embodiment selects actuating device of atmospheric pressure 4, and including cylinder drive component 42, cylinder drive component 42 is connected with driving air Pipeline 43 and solenoid valve 33.The driving air pipe line 43 is connect with above-mentioned air supply system 3, i.e., above-mentioned air supply system 3 Air-leakage test air source was not only provided, but also the driving air air source of driving device 4 is provided.

As shown in figure 5, above-mentioned fixing device 5 includes the rapid mounting clamp 51 to cooperate and quick folder 52, it is quick to pacify Clamps 51 are located at 52 both sides of quick folder, and quick folder 52 is connected with telescopic rod 53, and rapid mounting clamp 51 clamps part 1 to be detected Left and right sides quickly presss from both sides 52 front sides for clamping part 1 to be detected, and with stretching for telescopic rod 53, quick folder 52 is compressible or release is treated Detection piece 1.

The water inlet 110 of element kit is tightly connected by interface block 413 and the appendix 31 of air supply system 3, into The front end at the mouth of a river 110 is equipped with air switching valve and pressure regulator valve 32, and 120 front end of water outlet of element kit is equipped with dismountable closing Device 121；Interface block 413 is connected at water outlet 120, interface block 413 and water inlet 110, the connection of water outlet 120 are all close To ensure leakproofness, sealing element is equipped in interface block 413 and water inlet 110 and the interface of water outlet 120 for envelope docking.

The front end of water inlet 110 is additionally provided with pressure regulator valve 32, can supply air to the air conditioning that system 3 inputs element kit For defined atmospheric pressure value, while making detection element kit air-tightness, moreover it is possible to detect element kit whether be resistant to it is enough Pressure is without revealing.

Swing arm 41 includes left swing arm 411 and right swing arm 412, and left swing arm 411 is set to above the left side of water tank 2, right swing arm 412 are set to above the right side of water tank 2.Appendix 31 pass sequentially through T joint, hose simultaneously with it is fixed on left swing arm 411 Fixed 1 water inlet 110 of part sealing connection to be detected, i.e., defeated with an air on 1 water inlet 110 of part to be detected, right swing arm 412 Enter pipe while two swing arms to the left and right provide detection air source, for convenience of using, appendix 31 is arranged in swing arm 41.

After driving device 4 drives left swing arm 411 to return to initial position, driving right swing arm 412 begins to rotate to test position It stops, before treating that left swing arm 411 rotate be prepared to enter into operating position again, right swing arm 412 briefly returns to initial position and waits for.

Electric control system provides power supply for air-tightness detection device；Driving device 4, air supply system 3 with electrically Control system is electrically connected or signal connection.Electric control system be equipped with sequence that default and control horizontal swinging arm 412 respectively acts with The function button of duration.

Above-mentioned air-tightness detection device is equipped with the detection application specific standard filter core without leakage defect and the inspection without leakage defect Survey application specific standard filter cartridge seat.Configurating filtered material is not needed to inside standard filter cartridges, for single or more filter cartridge seat of special detection Whether reveal；Similarly, using the detection application specific standard filter cartridge seat without leakage defect, available for one or more filter cores of special detection Whether leak.This flexible configuration mode so that the device can meet individually detection filter with a tractor serves several purposes in practical applications Core individually detects a variety of testing requirements such as filter cartridge seat, comprehensive detection element kit.

Above-mentioned locking device 121 is air bleeding valve 1221, after detection finishes, air switching valve is closed, prepare to unload it is to be checked Before surveying part 1, air bleeding valve 1221 is opened to the portion gas released and retained inside sealing channel 13, makes 13 internal pressure of sealing channel It drops to close to normal pressure.

When detecting air-tightness using above-mentioned air-tightness detection device, include the following steps：

(1) as individually detected filter core, then the filter cartridge seat of standard is mounted on standard branch by state connection in actual work On frame, filter core to be measured is properly attached on corresponding standard filter cartridges seat；As individually detected filter cartridge seat, then filter cartridge seat to be measured is pressed State connection in actual work is mounted in standard carriage, then the detection of standard is properly attached to pair to be detected with filter core It answers in filter cartridge seat；What it is such as detection is assembled complete machine component, then directly since second step.

(2) by mounted first element kit, 14 integral installation to be detected in the fixing device 5 of left swing arm 411, It by rapid mounting clamp 51 and quickly presss from both sides 52 pair of first element kit 14 to be fixed, makes the Inlet and outlet water of the first element kit 14 Mouth 120 is docked with the sealing of interface block 413 in swing arm 41, and 120 end of water outlet of element kit is all closed.

(3) water inlet 110 of the appendix 31 in swing arm 41 and element kit to be detected is connected, 31 upper edge of appendix into Gas direction is connected with air switching valve, pressure regulator valve 32, solenoid valve 33 and pressure gauge 34 in turn, pressure gauge 34 is observed, by pressure regulator valve 32 are adjusted to detection authorized pressure, the compressed air full of detection authorized pressure in element kit water route.It is reverse osmosis using Membrane filter, nanofiltration filter core water purifier in, this detection pressure be recommended as 0.6Mpa, in the water purifier for using ultra-filtration element, this Detection pressure is recommended as 0.35Mpa.It, then will be with reverse osmosis membrane filter element as there is no reverse osmosis membrane filter element in the element kit that is detected The corresponding air bleeding valve of the intermediate water outlet of seat is set as normally off.

(4) Action Button in electric control system is pressed, drive magnetic valve action makes the compression needed for driving device 4 Air enters cylinder drive component 42 from driving air pipe line 43, and then left swing arm 411 is driven to rotate to test position, drives First element kit 14 is all immersed into water tank 2, and it is about 3-5cm depth that top, which there is not upstream face,.At this point, on one side in observation water Whether there is bubble to emerge, whether 11 end pressure table of import, 34 numerical value and outlet 12 end pressure table, 34 numerical value are consistent, while by second Element kit 15 is fixed to be detected on right swing arm 412 by the same manner.As shown in figure 4, solid line represents swing arm 41 and to be detected The original state of part, dotted line represent the working condition of swing arm 41 and part to be detected；

(5) testing component is made to stand 1 minute in water, continuing the first element kit 14 that observation is immersed in water tank 2 is It is no to there is bubble to emerge；

A. it such as emerges without any bubble, then all components in testing component are all qualified；Right swing arm 412 is pressed at this time Action Button, left swing arm 411 returns to initial position in advance, and right swing arm 412 is rotated the second element kit 15 to test position It is all immersed into water tank 2, has seen whether bubble on one side at this time, after the air switching valve on left swing arm 411 is closed on one side, The air bleeding valve 1221 on left swing arm 411 is opened, after discharging detection gas, the first element kit 14 is removed from left swing arm 411, Next element kit is loaded onto, waits to be detected, such cycle；

B. as found, bubble is emerged, and is found out its starting point and is confirmed the point is in which position of which component, is such as leaked Point does not illustrate that the component is underproof in the junction of component but in the other positions of component；If leakage point is in junction, It can then attempt suitably to stir component observation bubble, component qualification is thought if bubble collapse, emerges if there is bubble, then uses standard For component of the flawless part replacement at this until bubble collapse, the component being replaced is unqualified.

Embodiment 3

The present embodiment and embodiment 2 difference lies in：

1st, part 1 to be detected is water purifier filter element component and peripheral components, is tightly connected between element kit and peripheral components； There is channel in peripheral components, which communicates with the water stream channel sealing docking in element kit and inside.Peripheral components For pipe connecting pieces such as pipe fitting, water pipes.

When the 2nd, being detected air-tightness, in step (1), when individually detecting peripheral components, by standard filter cartridges component by real State when border works is rack-mount, and peripheral components to be measured are mounted on corresponding standard filter cartridges component, is assembled into and treats Detection components；Above-mentioned standard element kit is assembled by the detection application specific standard filter core without leakage defect and filter cartridge seat.

The advantages of basic principle, main feature and the utility model of the utility model has been shown and described above.One's own profession The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description Only the utility model principle, on the premise of not departing from the spirit and scope of the utility model the utility model also have respectively Kind changes and improvements, these changes and improvements are both fallen in claimed the scope of the utility model.The requires of the utility model Protection domain defined by appended claims and its equivalent.

Claims (10)

1. a kind of air-tightness detection device, part to be detected includes inlet and outlet, and inlet and outlet is by the sealing in part to be detected Channel connects, which is characterized in that detection device includes water tank, air supply system and electric control system, and energy is filled in water tank The clear water of part to be detected is totally submerged, detection device further includes the driving dress that part to be detected can be driven to be totally submerged in clear water It puts, part to be detected is fixed on the drive means by fixing device；

The appendix of the air supply system and the import of part to be detected are tightly connected, and the outlet of part to be detected is equipped with detachably Locking device；

The electric control system provides the power supply of detection device, and driving device, air supply system are and electric control system Electrical connection or signal connection.

2. a kind of air-tightness detection device according to claim 1, which is characterized in that the driving device includes to drive The swing arm that part to be detected is rotated up and down, the fixing device are arranged on the end of swing arm.

3. a kind of air-tightness detection device according to claim 2, which is characterized in that the swing arm includes left swing arm and the right side Swing arm, left swing arm are set to above the left side of water tank, and right swing arm is set to above the right side of water tank；The electric control system is set There are the sequence and the function button of duration that default and control horizontal swinging arm respectively acts.

4. a kind of air-tightness detection device according to claim 3, which is characterized in that the appendix passes sequentially through threeway Pipe connects, hose connects simultaneously with part import sealing to be detected fixed on part import to be detected fixed on left swing arm, right swing arm.

5. a kind of air-tightness detection device according to claim 1, which is characterized in that the import of the part to be detected and go out Interface block is sealedly connected at mouthful, the interface block and the interface of import, outlet are equipped with sealing element.

6. a kind of air-tightness detection device according to claim 1, which is characterized in that the front end of the import is equipped with pressure regulation Valve.

7. a kind of air-tightness detection device according to claim 1, which is characterized in that the inlet and outlet is respectively mounted There is pressure gauge.

8. a kind of air-tightness detection device according to claim 1, which is characterized in that the locking device is air bleeding valve.

9. a kind of air-tightness detection device according to claim 1, which is characterized in that the part to be detected is is tightly connected Water purifier filter element component and its peripheral components in one or more combinations；

The element kit includes the engine base being assembled by a stent and multiple filter cartridge seats, and filter cartridge seat is rack-mount, filter Filter core has been removably installed on core print seat；There are the sealing waterway for supplying water and passing in and out, filter core in single filter cartridge seat or the inside of filter core Simultaneously inside communicates seat with cartridge seal docking, is also that simultaneously inside communicates for sealing docking between filter cartridge seat；

There is sealing channel in the peripheral components, sealing channel is docked with the sealing waterway sealing in element kit and internal phase It is logical.

10. a kind of air-tightness detection device according to claim 9, which is characterized in that when the part to be detected is filter core, Air-tightness detection device is equipped with the detection application specific standard filter cartridge seat without leakage defect；

When the part to be detected is filter cartridge seat, air-tightness detection device is equipped with the detection application specific standard filter core without leakage defect；

When the part to be detected is the peripheral components of element kit, air-tightness detection device is special equipped with the detection without leakage defect With standard filter cartridges component.