CN206095888U - Gaseous separation nature is closing device and gaseous separation nature check out test set for test - Google Patents

Abstract

The utility model discloses a gaseous separation nature is closing device and gaseous separation nature check out test set for test, the device include first cavity and second cavity, its characterized in that still includes an actuating mechanism, and one in two cavitys of actuating mechanism drive for another motion so that produce adjustable pressure with the centre gripping sample between two cavitys, through the setting that compresses tightly the cavity configuration, realize opening, closing and compress tightly test chamber's automation, guarantee the stability of packing force, reduce operating personnel's intensity of labour, the utility model discloses the setting of structure, simple structure, the sample did not have the removal when not only effective assurance compressed tightly, and the location accuracy is high, has guaranteed test area and leakproofness, further improves the measuring accuracy, does not increase the volume of integrated test equipment moreover, has guaranteed compact structure nature.

Description

A kind of barrier properties for gases test hold down gag and barrier properties for gases testing equipment

Technical field

This utility model is related to testing equipment, more particularly to a kind of barrier properties for gases test hold down gag and gas barrier Property testing equipment.

Background technology

In barrier properties for gases testing equipment, sample is placed between test chamber, and the compression seal degree of test chamber is directly affected The measuring accuracy and test result of equipment.Existing testing equipment uses manual compression mode, this mode to there are many defects, Such as：Thrust between two chambers does not know, and causes the pressing seal degree in two chambers different, causes test result to have error, greatly Ground affects measuring accuracy, and different operator's thrusts is different, affects the accuracy of test；The operating process tightened manually is numerous It is trivial, manual unlocking and closing are needed, is worked long hours, testing crew is unable to do what one wishes, and the operant skill to operator is required Height, in misoperation, the film movement being easily caused between test chamber affects infiltrating area, the sealing of test chamber of film；When making Use multigroup test chamber, or multiple devices be when detecting simultaneously, tighten the workload for often increasing operator manually, work efficiency compared with It is low.

Accordingly, it would be desirable to carry out new research design to the test chamber of barrier properties for gases testing equipment.

Utility model content

The first purpose of this utility model is to provide a kind of barrier properties for gases test hold down gag, and the device is driven by first The setting of motivation structure, realizes that one of them is relative to another motion in two cavitys, so that produce between two cavitys can The pressure of tune, meets test request, it is to avoid the non-adjustable situation of the pressure that artificial locking is produced occurs.

Second purpose of the present utility model is to provide a kind of barrier properties for gases test hold down gag, by the hold down gag Setting realize that two cavitys are locked to set pressure, without the need for manually operating, caused by effectively prevent pressing degree difference Sealing is poor, and the wrong problem of test result is produced, and further, coordinates the setting of the second drive mechanism, is capable of achieving wherein one Individual cavity is automatically opened up or is closed relative to another cavity, and staff places sample between two cavitys, two cavitys Closure, then the two is compressed with setting pressure, effectively mitigate manual work intensity, it is to avoid the operation that manual work is caused is missed Difference.

3rd purpose of the present utility model is to provide a kind of barrier properties for gases testing equipment, improves test by the equipment The accuracy of precision and result, releases manpower, high working efficiency.

In order to reach above-mentioned purpose, first technical scheme that this utility model is provided：

A kind of barrier properties for gases test hold down gag, including the first cavity and the second cavity, it is characterised in that also include First drive mechanism, in the first drive mechanism two cavitys of drive is relative to another motion so that between two cavitys Adjustable pressure is produced to clamp sample, and the pressure reaches setting value in the presence of the first drive mechanism.Thrust size It is controlled by the first drive mechanism, thrust size is defined with the stroke or driving time of drive mechanism；By first The contact with the second cavity can have both been realized in the movement of drive mechanism drive cavity, can realize the first cavity and the second cavity again Be brought into close contact, serve multiple, while avoiding manually operating the error for causing.

First cavity or the second cavity arrange sealing member with the surface of sample contacts, and sealing member limits the rest area of sample Domain, by the restriction of sealing member, when the first cavity and the second cavity are brought into close contact, has been effectively ensured the air-tightness of structure.

First cavity is fixed, and the second cavity is relative to the first cavity relative motion；

Or, the second cavity is fixed, and the first cavity is relative to the second cavity relative motion.

This utility model provide alternative plan be：A kind of barrier properties for gases test hold down gag, including the first cavity With the second cavity, also including the first drive mechanism and the second drive mechanism, the first drive mechanism drives in two cavitys Relative to another motion so as to adjustable pressure be produced between two cavitys to clamp sample, the second drive mechanism drives two One in cavity moves relative to another so that a cavity is opened relative to another cavity or closed, and is driven first In the presence of mechanism, the pressure reaches setting value.

In order to ensure the compactedness of structure, and the circuit being connected with the second cavity is not affected, first drive mechanism For electric cylinders or hydraulic cylinder or cylinder, when the first drive mechanism is cylinder or hydraulic cylinder or electric cylinders, the pressure between two cavitys leads to The stroke for crossing cylinder or hydraulic cylinder is determined；The expansion link of the first drive mechanism or the first drive mechanism by drive mechanism with Expansion link connects, and expansion link can be connected with the first cavity and/or the second cavity under the drive of the first drive mechanism；

Or first drive mechanism is electric cylinders or linear drive motor or hydraulic cylinder or cylinder, the first drive mechanism with Compact heap connects, and the first drive mechanism drives compact heap movement to contact with the first cavity and to the first cavity offer pressure, and the One drive mechanism persistently drives compact heap movement to set the first cavity of pressure compaction and the second cavity until the first drive mechanism Stroke reach and keep.

In order to realize being reliably connected for expansion link and the first cavity and/or the second cavity, also including telescoping mechanism, telescopic machine Structure is located at the first cavity and/or the second inside cavity, and telescoping mechanism can be embedded in expansion link；

Further, telescoping mechanism is electric adhesive mechanism, and electric adhesive mechanism is connected with block, and block can be embedded in expansion link It is interior；

Further, electric adhesive mechanism is electric magnet, and the side of block is arranged on can be with electromagnetism in the case of electric magnet is powered The spring of ferrum adhesive；

Or, electric adhesive mechanism is cylinder or electric cylinders, and the push rod of the push rod or electric cylinders of cylinder can be embedded in expansion link.

The drive mechanism is screw-nut mechanism, and in screw-nut mechanism, leading screw one end is connected with the first drive mechanism, The other end is connected with second cavity, and screw is arranged on leading screw, and screw is fixed with connecting plate, and connecting plate is provided with least one Through the second cavity side and parallel to the axial arranged expansion link of the second cavity, under normality, expansion link surface and second Housing surface is concordant or is less than the second housing surface, and the first housing surface arranges perforate, and the first drive mechanism is driven on expansion link Rise, at the top of expansion link with perforate coordinate, the first drive mechanism move down so that drive the first cavity movement so as to the second cavity with Setting pressure laminating, can be threaded hole in perforate, be threaded realization and be connected with perforate and then realization and the at the top of expansion link One cavity is detachably connected；Leading screw is connected with the first drive mechanism, drives screw action, Jin Ertong by the first drive mechanism Cross connecting plate multiple expansion links are driven while rising or falling action.

In above structure, first drive mechanism is electric rotating machine, when the first drive mechanism is electric rotating machine, by adjusting The gear ratio of rotary speed and the duration of runs or drive mechanism of motor is saved to adjust the displacement stroke between two cavitys The pressure is determined, after setting time, motor shuts down, the pressure is maintained.

Or, multiple expansion links are each connected with the first drive mechanism, and the first drive mechanism is electric cylinders or hydraulic cylinder or gas Cylinder.

Or, the drive mechanism is switching magnet, switching magnet be located at the first cavity and/or the second inside cavity or Outside；

In alternative plan, second drive mechanism be connected with the first cavity driving the first cavity to move up and down or Overturn around setting shaft line or in horizontal plane rotary motion.

When the second drive mechanism is electric cylinders or linear drive motor or hydraulic cylinder or cylinder, the second drive mechanism is fixed on The side of the first cavity and/or the second cavity and directly with the first cavity and/or the second cavity connection drive a cavity it is relative In the displacement of another cavity；

Or, when the second drive mechanism is electric rotating machine, electric rotating machine is connected to connecting shaft by conveyer belt, in connecting shaft Activity arranges the rotary shaft vertical with connecting shaft, and rotary shaft is connected with first cavity and/or the second cavity, electric rotating machine rotation Turn, connecting shaft drives rotary shaft to overturn around connecting shaft place axis, realize a cavity relative to the opening of another cavity or Closure；Conveyer belt can also replace with the connecting gears such as gear, turbine and worm.

Or, the second drive mechanism is rotary cylinder, and rotary cylinder is connected with the first cavity and/or the second cavity, rotation Cylinder rotates, and drives the cavity being attached thereto in the rotation of horizontal plane, realizes opening of the cavity relative to another cavity Or closure.

First drive mechanism is switching magnet, and switching magnet is located at the first cavity and/or the second inside cavities or outer Side, on the outside of the cavity, two cavitys are metal material to switching magnet knob, switching magnet knob after opening, the first cavity Adhesive is carried out with the second cavity under the effect of switching magnet the suction-combining force；

Or first drive mechanism be located at the second cavity periphery magnechuck, the first cavity circle enclose setting with electromagnetism inhale The metalwork that disk coordinates, in the case of magnechuck is powered, magnechuck carries out adhesive to metalwork, and two cavitys are setting Pressure adhesive, the pressure are the suction-combining force of the magnechuck to metalwork, and the suction-combining force size is big by the electric current passed through in magnechuck It is little to be determined.

In alternative plan, first drive mechanism can unite two into one with the second drive mechanism, be the 6th drive Motivation structure, saves power source.

6th drive mechanism is motor or hydraulic motor, the 6th drive mechanism by two clutches respectively with the first chamber Body, the second cavity individually connect,

Further, the 6th drive mechanism is connected with conveyer belt by first clutch, and conveyer belt is connected to connecting shaft, even Activity in spindle arranges the rotary shaft vertical with connecting shaft, and rotary shaft is connected with first cavity and/or the second cavity, rotates Motor rotates, and connecting shaft drives rotary shaft to overturn around connecting shaft place axis, realizes a cavity relative to another cavity Open or close；

6th drive mechanism is electric cylinders or hydraulic cylinder or cylinder, and the expansion link of the first drive mechanism or the first drive mechanism are logical Cross drive mechanism to be connected with expansion link, expansion link can be with the first cavity and/or the second cavity under the drive of the first drive mechanism Connection.

In two above scheme, pressure transducer is set in or beyond second housing surface, pressure transducer with Control system connects, and control system carries display screen to show pressure size when the first cavity is fitted with the second cavity.

This utility model provide the 3rd scheme be：

A kind of barrier properties for gases testing equipment, including described barrier properties for gases test hold down gag and housing, second Cavity is arranged at surface of shell, and the test chamber that the first cavity and the second cavity are formed is horizontally disposed to facilitate the fixation to test specimen.

Wherein, in order to avoid the volume of whole testing equipment is excessive, first drive mechanism is equal with the second drive mechanism It is arranged at enclosure interior.

The beneficial effects of the utility model are：

1) by the setting of this utility model device, realize automatically opening up, close and compressing to test chamber, it is ensured that two Between cavity, pressure is stablized, and reduces manual operation error, make test result accurately, high precision, improve work efficiency, reduce behaviour Make the labor intensity of personnel.

2) setting of this utility model device, simple structure, when compression is not only effectively ensured, sample is without movement, accurate positioning Property it is high, it is ensured that test area and sealing, further improve measuring accuracy, and increase the body of integrated testability equipment Product, it is ensured that structural compactness.

Description of the drawings

Fig. 1-Fig. 2 is the structural representation one in this utility model embodiment 1；

Fig. 3 is the side view in this utility model embodiment 1；

Fig. 4 is the front view in this utility model embodiment 1；

Fig. 5 is the schematic diagram two in this utility model embodiment 1；

Part-structure schematic diagrams of Fig. 6-Fig. 7 for this utility model embodiment 1；

Fig. 8 is the structural representation of the first cavity upset in this utility model embodiment 1；

Structural representations of the Fig. 9 (a) for this utility model embodiment 1；

Structural representations of the Fig. 9 (b) for this utility model embodiment 1；

Figure 10 is schematic diagram three in this utility model embodiment 1；

Structural representations one of the Figure 11 for this utility model embodiment 2；

Structural representations two of the Figure 12 for this utility model embodiment 2；

Structural representations three of the Figure 13 for this utility model embodiment 2；

Structural representations of the Figure 14 for this utility model embodiment 3；

Structural representation detail drawings of the Figure 15 for this utility model embodiment 3；

Structural representations of the Figure 16 for this utility model embodiment 4；

Structural representation detail drawings of the Figure 17 for this utility model embodiment 4；

In figure：1. the 3rd drive mechanism, 2. drive mechanism, 3. the first cavity, 4. sample, 5. the second cavity, 6. driver Structure, 7. the 4th drive mechanism, 8. the second drive mechanism, 9. the 5th drive mechanism, 10. the 6th drive mechanism, 11. blocks, 12. stretch Contracting bar, 13. connecting plates, 14. screws, 15. leading screws, 16. sealing members, 17. electric magnet, 18. gears, 19. first drive mechanisms, 20. conveyer belts, 21. transmission leading screws, 22. cylinders, 23. cylinder axis, 24. rotary shafts, 25. connecting shafts, 26. tooth bars, 27. supports, 28. locking screws, 29. screws, 30. lower gears, 31. clutches, 32. connecting rods or belt or gear.

Specific embodiment

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clear, complete description.

Embodiment 1

First cavity 3 is horizontally disposed with the second cavity 5, and the two is setting up and down, the first cavity 3 lower surface or The upper surface of the second cavity of person 5 is respectively or one of them arranges sealing member 16, and when the second cavity 5 is fixed, the second cavity 5 is fixed When, the first drive mechanism 19 by drive mechanism be flexibly connected with the first cavity 3 with by the first cavity 3 with the second cavity 5 to set Constant-pressure is fitted；

Or first drive mechanism be connected with compact heap, the first drive mechanism 19 is elevating mechanism, and elevating mechanism can be Electric cylinders, hydraulic cylinder or cylinder, or by the way of electromagnetism adhesive, the first drive mechanism drives compact heap to move up and down to set Constant-pressure locks the first cavity 3 and the second cavity 5.

In order to ensure the compactedness of structure, and the circuit being connected with the second cavity 5, the drive mechanism is not affected to include Through 5 side of the second cavity and parallel at least one axial arranged expansion link 12 of the second cavity 5, expansion link 12 is preferred It is two, and is symmetrical arranged, under normality, 12 surface of expansion link and 5 flush of the second cavity, 3 surface of the first cavity is arranged and opened Hole, outermost layer of the perforate located at the first cavity 3, located at the inner side of perforate, expansion link 12 is coordinated with perforate and drives the sealing member 16 One cavity 3 is moved, and the first drive mechanism 19 can be threaded hole, at the top of expansion link 12 located at the lower section of the second cavity 5 in perforate It is threaded and realizes be connected being detachably connected for further realization and the first cavity 3 with perforate.

Or, in order to realize being reliably connected for expansion link 12 and the first cavity 3, telescoping mechanism is set in the first cavity 3, Telescoping mechanism can be embedded in expansion link to realize the connection of expansion link and the first cavity 3；Telescoping mechanism is mutual with expansion link 12 Vertically；

Telescoping mechanism is electric adhesive mechanism, and electric adhesive mechanism is connected with block 11, and block 11 can be embedded in expansion link 12；Electricity Adhesive mechanism is electric magnet 17, and the side of block 11 is arranged on can be with the bullet of 17 adhesive of electric magnet in the case of electric magnet 17 is powered Spring, or one end of spring arranges contiguous block, the other end of spring arrange contiguous block, contiguous block can with 17 adhesive of electric magnet, such as Shown in Fig. 1 and Fig. 2.

When the expansion link 12 is multiple, multiple expansion links 12 are connected respectively to connecting plate 13, and 5 bottom of the second cavity is arranged Leading screw 15, is arranged screw 14 and is connected with connecting plate 13 on leading screw 15, leading screw 13 is connected with the first drive mechanism 19, is driven by first Motivation structure 19 drives 14 action of screw, and then drives multiple expansion links 15 while rising or falling action by connecting plate 13.

When in use, when electric magnet 17 is powered, attract block 11 near electric magnet 17, expansion link 12 smoothly stretches into perforate It is interior；After electric magnet power-off, magnetic force disappears, spring release so that block 11 withstands on the groove of expansion link, blocks expansion link 12, now expansion link 12 move downward, drive the first cavity 3 move downward, the first cavity 3 fits to the second chamber to set pressure On body 5, sealing member 16 further seals 4 periphery of sample.

Or, the first drive mechanism 19 drives the first cavity 3 to move up and down, and the second drive mechanism 8 is motor, motor it is defeated Shaft is locking screw, and screw is arranged outside locking screw, and screw is fixed with support, and motor drives locking screw in screw Rotation, and then the first cavity 3 is applied pressure from above, as shown in Figure 10；Or, the first drive mechanism 19 is motor, motor Fix and fix with gear, gear 18 is coordinated with tooth bar 26 and then drives the first cavity 3 to move up and down and to set pressure compaction Shown in two cavitys, such as Fig. 9 (a) and Fig. 9 (b).

The automatization level of structure, also including the second drive mechanism 8, the second drive mechanism 8 and the first chamber are improved further Body 3 connects to drive the first cavity 3 to move up and down or overturn around setting shaft line, as shown in Figure 6 and Figure 7, the second drive mechanism 8 Can be located at the first cavity 3 surface or oblique upper, the second drive mechanism 8 can for elevating mechanism directly with the first cavity 3 It is fixed, also can be fixed with the first cavity 3 by drive mechanism；Or, the connecting shaft 25 of the second drive mechanism 8 is solid with rotary shaft 24 Fixed, rotary shaft 24 is rotatable around certain fulcrum, realizes upset of first cavity 3 in perpendicular, namely realizes 3 phase of the first cavity For opening or closing for the second cavity 5, as shown in Figure 8.

Because of the restriction in space, in order that structure is not take up excessive space as far as possible, second drive mechanism 8 is by transmission Mechanism is connected with the first described cavity 3；When the first cavity 3 is horizontally disposed with, the first cavity can be driven by the second drive mechanism 8 3 move in the horizontal plane, and the second drive mechanism 8 can be rotary cylinder or rotating hydraulic cylinder；

Or, as shown in figure 5, the second drive mechanism is cylinder 22, cylinder 22 is connected with the second cavity 5 by cylinder axis 23 The second cavity 5 is driven to move up and down to open or contact with the first cavity 3, the output of the first drive mechanism motor or hydraulic motor Axle is provided with conveyer belt 20, and conveyer belt 20 drives transmission leading screw 21 to move up and down, and then drives moving up and down for the first cavity 3, First cavity 3 is tightened with relative second cavity 5.

As shown in Figure 3 and Figure 4, the optimal case of the present embodiment 1 is：First drive mechanism 19 is vertically arranged, by two The lower gear 30 of engagement is connected with leading screw 15, and the second drive mechanism 8 is connected with driven shaft by conveyer belt, and driven shaft is rotated Axle 24 rotates, and rotary shaft can also be swivelling cover or swivel plate, can realize rotation, 24 one end of rotary shaft and the first cavity 3 fix drive the first cavity 3 realizes upset, and other structures are identical with the structure in Fig. 2.

Embodiment 2

As shown in figures 11-13, using the 3rd drive mechanism 1 and the 4th drive mechanism 7, the 3rd drive mechanism 1 and first Cavity 3 connects to drive the first cavity 3 to move up and down or overturn or rotary motion in the horizontal plane around setting shaft line, the 4th Drive mechanism 7 is connected with the second cavity 5 to drive the second cavity 5 to move up and down, in use, 1 band of the 3rd drive mechanism Dynamic first cavity 3 is opened relative to the second cavity 5, drives the second cavity and the first cavity compression clamping by the 4th drive mechanism 7 Sample 4, or, when the first cavity 3 and the second cavity 5 realize above-below direction displacement, the two move toward one another is compressed.

Wherein, the 3rd drive mechanism 1 and the 4th drive mechanism 7 can be each motor, electric cylinders, hydraulic cylinder or gas Cylinder, the two drive mechanisms can pass through the forms such as gear, rack-and-pinion, worm and gear, leading screw, Timing Belt, sprocket wheel, belt Drive mechanism 2,6 realizes the connection with the first cavity 3 or the second cavity 5.

Embodiment 3

When first cavity 3 is fixed, as shown in figure 14, using the 5th drive mechanism 9, the 5th drive mechanism 9 and the second cavity 5 Connection can equally realize the laminating of two cavitys to drive the second cavity 5 to move up and down, and the 5th drive mechanism is elevator Structure, elevating mechanism is directly fixed with the second cavity or to drive the second cavity to move up again by compact heap tight with the first cavity Closely connected conjunction, the elevating mechanism are electric cylinders that are being fixedly connected with the second cavity and vertical or being obliquely installed or hydraulic cylinder or cylinder.

In the embodiment, the 5th drive mechanism and corresponding drive mechanism can equally adopt scheme as in Figure 1 and Figure 2, Drive expansion link to move up and down by the 5th drive mechanism and realize fitting for the first cavity and the second cavity, while the 5th drive mechanism The second cavity is driven to move up and down.

Or, as shown in figure 15, the 5th drive mechanism 9 is fixed by support 27 by the dynamic locking screw 28 of toothed belts Screw 29, locking screw 28 is supported to move in screw 29, screw 29 is fixed with support 27 and is connected with the second cavity 5, by the 5th Drive mechanism drives the second cavity 5 to move up and down by the transmission of lower gear 30 and realizes fitting or separating with the first cavity 3.

Embodiment 4

As shown in figure 16, using the 6th drive mechanism 10, the 6th drive mechanism 10 passes through the first drive mechanism and the first chamber Body 3 connects to drive the first cavity 3 to move up and down or overturn around setting shaft line, and the 6th drive mechanism 10 passes through the second driver Structure is connected with the second cavity 5 to drive the second cavity 5 to move up and down, and so passes through different drive mechanisms by a drive mechanism Realize that the first cavity is opened or closed relative to the second cavity 5, the compression of fitting of the second cavity 5 and the first cavity 3.

6th drive mechanism 10 is individually connected with the first drive mechanism, the second drive mechanism using arrangement of clutch, with Be operated alone or while drive the first cavity, the action of the second cavity, the 6th drive mechanism select motor, hydraulic motor, or Can bidirectional output cylinder or electric cylinders.

As shown in figure 17, motor or hydraulic motor pass through two clutches 31, connecting rod or belt or gear 32 and first Cavity 3, the second cavity 5 are attached respectively, such as by the dynamic locking screw 28 of toothed belts, fix support screw by support 27 29, locking screw 28 is moved in screw 29, and screw 29 is fixed with support 27 and is connected with the second cavity 5, by the 6th drive mechanism 10 drive the second cavity 5 to move up and down by the transmission of lower gear 30 realizes fitting or separating with the first cavity 3, then by connecting rod Drive the first cavity 3 to move up and down to open the first cavity 3 relative to the second cavity 5；Or the rack-and-pinion that connecting rod is figure Structure.

Embodiment 5

For the further accuracy for ensureing to test, pressure transducer is set in or beyond second housing surface, presses Force transducer is connected with control system, and control system carries display screen to show pressure when the first cavity is fitted with the second cavity Size.

Embodiment 6

First drive mechanism is switching magnet, open switching magnet located at the first cavity and/or the second inside cavities or Outside, on the outside of the cavity, two cavitys are metal material to switching magnet knob, switching magnet knob after opening, the first chamber Body and the second cavity carry out adhesive under the effect of switching magnet the suction-combining force；

Or first drive mechanism be located at the second cavity periphery magnechuck, the first cavity circle enclose setting with electromagnetism inhale The metalwork that disk coordinates, in the case of magnechuck is powered, magnechuck carries out adhesive to metalwork, and two cavitys are setting Pressure adhesive, the pressure are the suction-combining force of the magnechuck to metalwork, and the suction-combining force size is big by the electric current passed through in magnechuck It is little to be determined；

Or, the first drive mechanism is the magnechuck located at the first cavity periphery, and the second cavity periphery arranges metalwork.

Embodiment 7

A kind of barrier properties for gases testing equipment, including the compression cavity configuration any one of embodiment 1-6, wherein, the Two cavitys are arranged at surface of shell, be to save space, the first drive mechanism is located at enclosure interior with the second drive mechanism preferably, The test chamber that first cavity and the second cavity are formed is horizontally disposed to facilitate the fixation to test specimen.

Wherein, in order to avoid the volume of whole testing equipment is excessive, optimal case is using the scheme in Fig. 3 and Fig. 4 so that Drive mechanism is located in casing so that testing equipment is attractive in appearance.

The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art For art personnel, on the premise of without departing from this utility model principle, some improvements and modifications can also be made, these improve and Retouching also should be regarded as protection domain of the present utility model.

Claims (10)

1. a kind of barrier properties for gases test hold down gag, including the first cavity and the second cavity, it is characterised in that also including One drive mechanism, in the first drive mechanism two cavitys of drive is relative to another motion so as to produce between two cavitys The adjustable pressure of life is to clamp sample, and the pressure reaches setting value in the presence of the first drive mechanism.

2. a kind of barrier properties for gases test hold down gag, including the first cavity and the second cavity, it is characterised in that also including One drive mechanism and the second drive mechanism, the first drive mechanism drive two cavitys in one relative to another motion so that Adjustable pressure is produced between two cavitys to clamp sample, in the second drive mechanism two cavitys of drive is relative to another One motion is so that a cavity is opened relative to another cavity or closed, and the pressure reaches in the presence of the first drive mechanism To setting value.

3. a kind of barrier properties for gases test hold down gag as claimed in claim 1 or 2, it is characterised in that first drive Motivation structure is electric cylinders or hydraulic cylinder or cylinder, and the expansion link of the first drive mechanism or the first drive mechanism pass through drive mechanism and stretch Contracting bar connects, and expansion link can be connected with the first cavity and/or the second cavity under the drive of the first drive mechanism；

Or first drive mechanism is electric cylinders or linear drive motor or hydraulic cylinder or cylinder, the first drive mechanism and compression Block connects, and the first drive mechanism drives compact heap movement to contact with the first cavity and provide pressure to the first cavity, and first drives Motivation structure persistently drives compact heap movement to set the first cavity of pressure compaction and the second cavity until the row of the first drive mechanism Journey continues to keep after reaching sets requirement；

Wherein, when the first drive mechanism is cylinder or hydraulic cylinder or electric cylinders, the pressure between two cavitys passes through cylinder or hydraulic pressure The stroke of cylinder is determined.

4. a kind of barrier properties for gases test hold down gag as claimed in claim 3, it is characterised in that also including telescopic machine Structure, telescoping mechanism are located at the first cavity and/or the second inside cavity, and telescoping mechanism can be embedded in expansion link；

Further, telescoping mechanism is electric adhesive mechanism, and electric adhesive mechanism is connected with block, and block can be embedded in expansion link；

Further, electric adhesive mechanism is electric magnet, and the side of block is arranged in the case of electric magnet is powered can be inhaled with electric magnet The spring of conjunction；

Or, electric adhesive mechanism is cylinder or electric cylinders, and the push rod of the push rod or electric cylinders of cylinder can be embedded in expansion link.

5. a kind of barrier properties for gases test hold down gag as claimed in claim 3, it is characterised in that the drive mechanism is Screw-nut mechanism, in screw-nut mechanism, leading screw one end is connected with the first drive mechanism, and the other end is connected with second cavity Connect, screw be set on leading screw, screw is fixed with connecting plate, connecting plate be provided with least one through the second cavity side and Parallel to the axial arranged expansion link of the second cavity, under normality, expansion link surface is concordant with the second housing surface or is less than second Housing surface, the first housing surface arrange perforate, and the first drive mechanism is driven expansion link to rise, matched somebody with somebody with perforate at the top of expansion link Close, the first drive mechanism is moved down and then drives the first cavity movement so as to be fitted to set pressure with the second cavity.

6. a kind of barrier properties for gases test hold down gag as claimed in claim 5, it is characterised in that first driving machine Structure is electric rotating machine；When first drive mechanism is electric rotating machine, by the rotary speed of regulation motor and the duration of runs or The gear ratio of drive mechanism is determined the pressure to adjust the displacement stroke between two cavitys；

Or, multiple expansion links are each connected with the first drive mechanism, and the first drive mechanism is electric cylinders or hydraulic cylinder or cylinder.

7. a kind of barrier properties for gases test hold down gag as claimed in claim 2, it is characterised in that second driving machine Structure is connected to drive the first cavity to move up and down or overturn or in horizontal plane rotary motion around setting shaft line with the first cavity.

8. a kind of barrier properties for gases test hold down gag as claimed in claim 7, it is characterised in that when the second drive mechanism For electric cylinders or linear drive motor or hydraulic cylinder or cylinder when, the second drive mechanism is fixed on the first cavity and/or the second cavity Side and directly be connected with the first cavity and/or the second cavity drive a cavity relative to another cavity displacement；

Or, when the second drive mechanism is electric rotating machine, electric rotating machine is connected to connecting shaft by conveyer belt, activity in connecting shaft The rotary shaft vertical with connecting shaft is set, and rotary shaft is connected with first cavity and/or the second cavity, electric rotating machine rotation, Connecting shaft drives rotary shaft to overturn around connecting shaft place axis, realizes a cavity relative to the opening of another cavity or closes Close；

Or, the second drive mechanism is rotary cylinder, and rotary cylinder is connected with the first cavity and/or the second cavity, rotary cylinder Rotation, drives the cavity being attached thereto in the rotation of horizontal plane, realizes a cavity relative to the opening of another cavity or close Close.

9. a kind of barrier properties for gases test hold down gag as claimed in claim 1 or 2, it is characterised in that first drive Motivation structure is switching magnet, and switching magnet is located at the first cavity and/or the second inside cavities or outside, and switching magnet knob is located at On the outside of cavity, two cavitys are metal material, and after opening, the first cavity and the second cavity are in switching magnet for switching magnet knob Adhesive is carried out under the suction-combining force effect；

Or first drive mechanism be located at the second cavity periphery magnechuck, the first cavity circle enclose setting matches somebody with somebody with magnechuck The metalwork of conjunction, in the case of magnechuck is powered, magnechuck carries out adhesive to metalwork, the pressure of two cavitys to set Adhesive, the pressure are the suction-combining force of the magnechuck to metalwork, and the suction-combining force size entered by the size of current passed through in magnechuck Row determines.

10. a kind of barrier properties for gases testing equipment, it is characterised in that hinder including the gas any one of claim 1-9 Every property test hold down gag.