CN205352753U - Sealing device of self -adaptation formula sample pinhole - Google Patents
Sealing device of self -adaptation formula sample pinhole Download PDFInfo
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- CN205352753U CN205352753U CN201521116746.5U CN201521116746U CN205352753U CN 205352753 U CN205352753 U CN 205352753U CN 201521116746 U CN201521116746 U CN 201521116746U CN 205352753 U CN205352753 U CN 205352753U
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Abstract
The utility model provides a sealing device of self -adaptation formula sample pinhole, belongs to urgent safety device field. Including sealed pad of bottleneck and bottle lid, vertically be provided with the thief hole on the bottle lid, transversely be provided with the slider hole on the bottle lid, be provided with pivot or slider in the slider hole, radially be provided with the slider thief hole on pivot or the slider, it sets up the sealed passageway of self -adaptation that comprises hole on the slider that connects gradually and sealed pad hole in pivot or slider, the sealed passageway of self -adaptation runs through pivot or slider setting, be provided with self -adaptation wiper seal subassembly in sealed pad hole, self -adaptation wiper seal subassembly comprises spring, sealed pad fixed block and sealed pad of thief hole. The sealed requirement of its solve solution bottle under different pressure states, the sliding fit who has reduced between slider and the bottle lid requires and the assembly degree of difficulty the machining precision is high, and solution volatilizees in the reducible container, reduces environmental pollution. The design and the manufacturing field that can extensively be arranged in autoanalysis device pressure -bearing container seals device.
Description
Technical field
This utility model belongs to emergency safety device field, particularly relates to a kind of sealing device for pressure resistant vessel.
Background technology
At biology, all kinds of experiments in chemistry and life science, detection, in instrument used in the processes such as control, frequent to use the particular solution that sampling probe comes in extraction vessel, and most solution is respectively provided with high volatile (loss of the amount of being that volatilization brings and the change of concentration value, cause testing result distortion), and under some specific operating mode, container is need to exist (as when adding quick-dissolving agent evaporation of certain force value, it is accomplished by certain negative pressure to extract the solvent of evaporation), so the sealing in vessel port and the opening and closing of thief hole is just particularly important.
Sealing means common at present mainly has static seal and movable sealing two kinds:
Static seal seals lid exactly in conjunction with sealing gasket mode, is extracted by sampling probe puncture seal pad mode repeatedly, but can remain pin hole on sealing gasket, it is impossible to fully seal, there is the situation of slowly volatilization；
Movable sealing is exactly the aperture sealing and covering sampling, but when non-extraction sample, aperture is blocked.Common barrier structure has following two: a kind of as shown in Figure 1A, 1B, it is by rotating the opening/closing action having the rotating shaft of slide block thief hole 73 or slide block 7 to realize the thief hole 31 on bottle cap 3, in Figure 1A, slide block thief hole 73 is not communicated with the thief hole 31 on bottle cap 3, container bottle 1 is hedged off from the outer world, and is in sealing state；Due to the rotation of rotating shaft or slide block 7 in Figure 1B, slide block thief hole 73 communicates with the thief hole 31 on bottle cap 3, it is simple to extract the insertion of sample pin, it is achieved the extraction of sample；Another kind of as shown in Fig. 2 A, 2B, it is by moving left and right the rotating shaft of slide block thief hole 73 or slide block 7 realizes the opening/closing action of thief hole, in Fig. 2 A, slide block thief hole 73 is not communicated with the thief hole 31 on bottle cap 3, and container bottle 1 is hedged off from the outer world, and is in sealing state；Due to the movement of rotating shaft or slide block 7 in Fig. 2 B, slide block thief hole 73 communicates with the thief hole 31 on bottle cap 3, it is simple to extract the insertion of sample pin, it is achieved the extraction of sample.
Above-mentioned both approaches is in stress-free situation (the normal pressure value being namely commonly called as) inside container bottle, it it is the effect that can reach to reduce or prevent solution evaporation, but when internal tank is in the state of certain pressure value (be commonly called as with " malleation " or " negative pressure "), above two method just cannot play the effect fully sealed.
Utility model content
Technical problem to be solved in the utility model is to provide the sealing device of a kind of self-adapting type sampling pin hole, it adopts simple self adaptation pressure-resistance structure device, the container being under different pressures state seals or realizes opening the action of thief hole, solve solution bottle seal request under different pressures state, decrease and be slidably matched to machining accuracy high request and assembly difficulty between slide block and bottle cap, solution evaporation in container can be reduced, reduce environmental pollution.
The technical solution of the utility model is: provide the sealing device of a kind of self-adapting type sampling pin hole, including bottle sealing pad and bottle cap, described bottle cap rotates and is fixed on the bottleneck of solvent bottle, described bottle sealing pad arranges between bottleneck and bottle cap, described bottle cap is vertically arranged with thief hole, bottle cap is horizontally arranged with slider bore, slider bore is provided with rotating shaft or slide block, rotating shaft or slide block have been radially arranged slide block thief hole；It is characterized in that:
Arranging self-adapting seal passage in described rotating shaft or slide block, described self-adapting seal passage is made up of hole on the slide block being sequentially connected with and sealing pad holes；
Described self-adapting seal passage runs through described rotating shaft or slide block is arranged；
Described sealing pad holes is provided with self-adaptive pressure black box；
Described self-adaptive pressure black box is made up of spring, sealing gasket fixed block and thief hole sealing gasket；
The thief hole place contacted with thief hole sealing gasket on bottle cap is provided with thief hole chamfering.
Concrete, described self-adapting seal passage is radially arranged along described rotating shaft or slide block.
Further, described self-adapting seal passage is disposed in parallel on described rotating shaft or slide block with the slide block thief hole in rotating shaft or slide block non-coincidencely.
Described self-adapting seal passage is arranged between described slide block thief hole and rotating shaft or the end of slide block.
Concrete, described sealing gasket fixed block is rigid material, and described thief hole sealing gasket is flexible material.
Further, the lower surface of described thief hole sealing gasket is provided with flexible convex origin or beginning, described flexible convex origin or beginning runs through described sealing gasket fixed block and arranges, described flexible convex origin or beginning and bottle cap thief hole are correspondingly arranged, the lower surface of described flexible convex origin or beginning is convex structure, and described convex structure contacts with described thief hole chamfer site.
The bearing capacity of its described self-adaptive pressure black box is directly proportional to the stiffness coefficient of described spring.
Compared with the prior art, the utility model has the advantages that:
1, adopt self-adaptive pressure seal component architecture, solve solution bottle seal request under different pressures state；
2, by arranging self-adaptive pressure seal component architecture, decrease and be slidably matched to machining accuracy high request and assembly difficulty between slide block and bottle cap, save manufacturing cost simultaneously；
3, owing to have employed self-adaptive pressure seal component architecture, decrease the volatilization of solution in container, the pollution to environment of reagent or sample can be reduced.
Accompanying drawing explanation
Figure 1A, 1B are the structural representations of existing movable sealing rotary type sealing device；
Fig. 2 A, 2B are the structural representations of existing movable sealing sliding seal；
Fig. 3 is the structural representation of the technical program self-adapting type sealing device；
Fig. 4 is that the technical program opens the position relationship schematic diagram of all parts during thief hole；
Fig. 5 is that the technical program closes the position relationship schematic diagram of all parts during thief hole.
In figure, 1 is solvent bottle, and 2 is bottle sealing pad, and 3 is bottle cap, and 31 is thief hole, and 32 is thief hole chamfering, 33 is slider bore, and 4 is thief hole sealing gasket, and 5 is sealing gasket fixed block, and 6 is spring, 7 is rotating shaft or slide block, and 71 is hole on slide block, and 72 for sealing pad holes, and 73 is slide block thief hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described further.
Shown in Fig. 3,4,5, the technical program provides the sealing device of a kind of self-adapting type sampling pin hole, including bottle sealing pad 2 and bottle cap 3, bottle cap rotates and is fixed on the bottleneck 1 of solvent bottle, bottle sealing pad arranges between bottleneck and bottle cap, and bottle cap is vertically arranged with thief hole 31, is horizontally arranged with slider bore 32 on bottle cap, slider bore is provided with rotating shaft or slide block 7, rotating shaft or slide block have been radially arranged slide block thief hole 73；The inventive point of the technical program is in that:
Arranging self-adapting seal passage in rotating shaft or slide block, this self-adapting seal passage runs through rotating shaft or slide block is arranged；
This self-adapting seal passage is made up of hole on the slide block being sequentially connected with 71 and sealing pad holes 72.
In above-mentioned packing hole, it is provided with self-adaptive pressure black box；Described self-adaptive pressure black box is made up of spring 6, sealing gasket fixed block 5 and thief hole sealing gasket 4.
The thief hole place contacted with thief hole sealing gasket on bottle cap is provided with thief hole chamfering 32.
As seen from the figure, above-mentioned self-adapting seal passage is radially arranged along described rotating shaft or slide block.
Wherein, bottle cap 3 has thief hole 31, thief hole chamfering 32 and slider bore 33, slide block 7 has hole 71 on slide block, seals pad holes 72 and slide block thief hole 73 (shown in Fig. 5).
Sealing gasket fixed block 5 is fixed with thief hole sealing gasket 4, in the lump spring 6 is loaded together the thief hole offered on slide block 7 and seals in pad holes 71；Will be equipped with slide block 7 assembly of thief hole sealing gasket 4, sealing gasket fixed block 5 and spring 6 again to load together in the slider bore 33 offered on bottle cap 3；
When slide block 7 is in " sealing " position (shown in Fig. 3), act on the pressure on sealing gasket fixed block 5 by spring 6, make thief hole sealing gasket 4 fit tightly in the thief hole chamfering 32 of bottle cap 3；When molten device bottle 1 is malleation or during without pressure, it is possible to meet the sealing of thief hole sealing gasket 4 and bottle cap 3 by choosing the spring 6 of convenient pressure；When molten device bottle 1 is negative pressure, it is have the sealing utilizing thief hole sealing gasket 4 with bottle cap 3.
By external agency or manual promotion slide block 7, it is allowed to be in during position of opening (shown in Fig. 4), now the slide block thief hole 73 on slide block 7 forms coaxial aperture with bottle cap 3 up sampling hole 31, it is easy to sampling probe entered in molten device bottle 1 by this holes, reaches to inject or extract the purpose of solution；Thief hole chamfering 32 on bottle cap 3, the arc structure being primarily to facilitate sealing gasket fixed block 5 bottom skids off from the thief hole 31 of bottle cap 3；
The bottle sealing pad 2 related in the technical program and thief hole sealing gasket 4, all can adopt politef or be covered with the silica gel Composition spacer of poly tetrafluoroethylene and make.
The sealing gasket fixed block 5 related in the technical program can adopt 316L rustless steel to make, to improve intensity and decay resistance.
The spring 6 related in technical scheme, it is possible to select different coefficient of elasticity and decrement, to meet solvent bottle 1 sealing at various pressures.
Owing to this utility model have employed self-adaptive pressure seal component architecture, solve solvent bottle seal request under different pressures state, decrease and be slidably matched to machining accuracy high request and assembly difficulty between slide block and bottle cap, save manufacturing cost simultaneously, decrease the volatilization of solution in container, the pollution to environment of reagent or sample can be reduced.
This utility model can be widely used for design and the manufacture field of pressure resistant vessel sealing device in automatic analysing apparatus.
Claims (7)
1. the sealing device of a self-adapting type sampling pin hole, including bottle sealing pad and bottle cap, described bottle cap rotates and is fixed on the bottleneck of solvent bottle, described bottle sealing pad arranges between bottleneck and bottle cap, described bottle cap is vertically arranged with thief hole, bottle cap is horizontally arranged with slider bore, slider bore is provided with rotating shaft or slide block, rotating shaft or slide block have been radially arranged slide block thief hole；It is characterized in that:
Arranging self-adapting seal passage in described rotating shaft or slide block, described self-adapting seal passage is made up of hole on the slide block being sequentially connected with and sealing pad holes；
Described self-adapting seal passage runs through described rotating shaft or slide block is arranged；
Described sealing pad holes is provided with self-adaptive pressure black box；
Described self-adaptive pressure black box is made up of spring, sealing gasket fixed block and thief hole sealing gasket；
The thief hole place contacted with thief hole sealing gasket on bottle cap is provided with thief hole chamfering.
2. the sealing device of the self-adapting type sampling pin hole described in claim 1, is characterized in that described self-adapting seal passage being radially arranged along described rotating shaft or slide block.
3. the sealing device of the self-adapting type sampling pin hole described in claim 1, is characterized in that described self-adapting seal passage is disposed in parallel on described rotating shaft or slide block with the slide block thief hole in rotating shaft or slide block non-coincidencely.
4. the sealing device of the self-adapting type sampling pin hole described in claim 1, is characterized in that described self-adapting seal passage is arranged between described slide block thief hole and rotating shaft or the end of slide block.
5. the sealing device of the self-adapting type sampling pin hole described in claim 1, is characterized in that described sealing gasket fixed block is rigid material, and described thief hole sealing gasket is flexible material.
6. the sealing device of the self-adapting type sampling pin hole described in claim 1, it is characterized in that being provided with flexible convex origin or beginning on the lower surface of described thief hole sealing gasket, described flexible convex origin or beginning runs through described sealing gasket fixed block and arranges, described flexible convex origin or beginning and bottle cap thief hole are correspondingly arranged, the lower surface of described flexible convex origin or beginning is convex structure, and described convex structure contacts with described thief hole chamfer site.
7. the sealing device of the self-adapting type sampling pin hole described in claim 1, is characterized in that the pressure-bearing numerical value of described self-adaptive pressure black box is directly proportional to the stiffness coefficient of described spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521116746.5U CN205352753U (en) | 2015-12-29 | 2015-12-29 | Sealing device of self -adaptation formula sample pinhole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521116746.5U CN205352753U (en) | 2015-12-29 | 2015-12-29 | Sealing device of self -adaptation formula sample pinhole |
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|---|---|
| CN205352753U true CN205352753U (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521116746.5U Active CN205352753U (en) | 2015-12-29 | 2015-12-29 | Sealing device of self -adaptation formula sample pinhole |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106820853A (en) * | 2016-12-29 | 2017-06-13 | 浙江八瓦文化创意发展有限公司 | A kind of thermos cup |
| CN113135341A (en) * | 2021-05-21 | 2021-07-20 | 中南大学湘雅三医院 | Infectious department's blood sample storage isolation box |
-
2015
- 2015-12-29 CN CN201521116746.5U patent/CN205352753U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106820853A (en) * | 2016-12-29 | 2017-06-13 | 浙江八瓦文化创意发展有限公司 | A kind of thermos cup |
| CN113135341A (en) * | 2021-05-21 | 2021-07-20 | 中南大学湘雅三医院 | Infectious department's blood sample storage isolation box |
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