CN114965282A - Can realize well sealed cell - Google Patents
Can realize well sealed cell Download PDFInfo
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- CN114965282A CN114965282A CN202210818554.7A CN202210818554A CN114965282A CN 114965282 A CN114965282 A CN 114965282A CN 202210818554 A CN202210818554 A CN 202210818554A CN 114965282 A CN114965282 A CN 114965282A
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- cuvette
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/03—Cuvette constructions
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Abstract
The invention relates to a cuvette capable of realizing good sealing, wherein a cuvette body is of a hollow cuboid cavity structure with an open top, the open top of the cuvette body is provided with a cuvette external thread end, the center of the cuvette external thread end is provided with a liquid inlet in a penetrating way, the liquid inlet is communicated and connected with a cavity of the cuvette body, and the outer wall of the cuvette external thread end is provided with an external thread; the shape of sealing plug and inlet phase-match, sealed the pad setting in the upper portion of sealing plug, the inner wall of internal thread lid is equipped with the internal thread that matches with cell external screw thread end. The quartz material of the cuvette body is integrated with the melting, and can meet the measurement requirements of ultraviolet, visible and near-infrared wave bands. The outer diameter of the internal thread cover is less than or equal to the side length of the cross section of the cuvette body, so that loading can be realized in most of test instruments. Meanwhile, different sealing modes can be selected according to different use requirements, and common sealing which can be opened and repeatedly used and complete sealing which is realized by glue adhesion can be realized.
Description
Technical Field
The invention relates to the technical field of a spectral analysis container, in particular to a cuvette capable of realizing good sealing.
Background
The cuvette is a container for containing liquid so as to perform quantitative or qualitative analysis, is generally cuboid in shape, is generally made of quartz, glass or plastic, and is widely used in liquid spectral analysis, such as a spectrophotometer, a water quality analyzer, a particle size analyzer and the like, which need to be used, and is widely applied to the fields of chemical industry, environmental protection, medicine, biochemistry, clinic, food and the like.
In the prior art, a polytetrafluoroethylene plug is generally adopted alone, or an internal thread cover plus a sealing gasket and an internal thread cover plus a rubber ring are adopted for sealing, so that the sealing performance is poor. Such as the patent: a double-light-path and multiple-light-path sealable cuvette (CN207123484U) is sealed by a sealing gasket and an internal thread cover, and is easy to open, so that the quantity value of a solution is influenced, and the sealing requirements of complete sealing and constant liquid amount holding for developing standard substances are not met. In addition, the diameter of the internally threaded lid is larger than the width of the cuvette body and cannot be loaded in some types of instruments. Some cuvettes are made of polycarbonate or polystyrene, and cannot be used in ultraviolet band.
Therefore, it is desirable to provide a cuvette capable of achieving good sealing, having better sealing effect, and the material can meet the measurement requirements of ultraviolet, visible and near-infrared bands.
Disclosure of Invention
In view of this, an object of the present invention is to provide a cuvette capable of achieving good sealing, which can achieve good sealing by using a sealing plug, a sealing pad and an internal thread cover, and the material of the cuvette can meet the measurement requirements of ultraviolet, visible and near-infrared bands.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a can realize well sealed cell, includes cell body, sealing plug, sealed pad and internal thread lid, the cell body is open-top's cavity cuboid cavity structures, the open-top department of cell body is equipped with cell external screw thread end, the center of cell external screw thread end is run through and is equipped with the inlet, the inlet is connected with the cavity intercommunication of cell body, the outer wall of cell external screw thread end is equipped with the external screw thread, the shape and the inlet phase-match of sealing plug, sealed pad sets up the upper portion at the sealing plug, the inner wall of internal thread lid is equipped with the internal thread that matches with cell external screw thread end. The mode of adopting sealing plug, sealed pad and screwing the internal thread lid can reach certain sealed effect.
Further, the liquid inlet is in the shape of an inverted frustum, and the inner diameter of the liquid inlet is gradually reduced from top to bottom. The effect of inlet is the filling opening of this internal solution of cell, and the design of the internal diameter from the top down of inlet reduces gradually and adopts less internal diameter, and this internal injection liquid back of cell places the sealing plug in the inlet, can reach better sealed effect.
Further, the bottom of the sealing plug is flush with the top of the inner wall of the cavity of the cuvette body, and the top of the sealing plug exceeds the top of the external thread end of the cuvette, such as by 0.1 mm. Like this place sealed the pad on the upper portion of sealing plug, then screw the internal thread lid again for there is certain effort between sealed pad and the sealing plug, thereby improves the laminating degree between sealing plug and the inlet inner wall, guarantees better sealed effect.
Further, the diameter of the sealing gasket is the same as the inner diameter of the internally threaded cap. The function of sealed pad is further compressed tightly the sealing plug, realizes sealed effect simultaneously between the top of cell external screw thread end and the internal thread lid. The thickness of the sealing gasket is larger than or equal to the inner depth of the internal thread cover minus the height of the external thread end of the cuvette.
Further, the outer diameter of the internal thread cover is smaller than or equal to the side length of the cross section of the cuvette body. The external diameter of the internal thread cover is reduced, the external diameter of the internal thread cover is ensured to be less than or equal to the side length of the cross section of the cuvette body, for example, less than 12.5mm, and the loading can be realized in most of test instruments.
Further, cell external screw thread end and cell body formula structure as an organic whole. The cell external screw thread end is dull polish and is handled, and the top of cell body is dull polish and is handled, and the internal thread lid is dull polish and is handled.
Preferably, the cuvette body is made of quartz integrated with the cuvette body in a melting mode. The quartz material integrated with melting can meet the measurement requirements of ultraviolet, visible and near infrared bands, and the cuvette structure capable of realizing good sealing is also suitable for cuvettes made of other materials.
Preferably, the sealing plug is made of polytetrafluoroethylene, and the sealing gasket is made of polytetrafluoroethylene or silica gel.
Preferably, when complete sealing is needed, glue is filled between the external thread of the external thread end of the cuvette and the internal thread of the internal thread cover. In order to achieve a better sealing effect, glue is filled between the external thread of the external thread end of the cuvette and the internal thread of the internal thread cover for bonding, and the glue can be resin glue or organic silica gel.
When the cuvette capable of realizing good sealing is used, different sealing modes can be selected according to different use requirements:
(1) general sealing condition capable of opening and reusing: adopt sealing plug, sealed pad and internal thread lid to seal, add the cell body with solution through the inlet in, can use sealing plug, sealed pad and internal thread lid simultaneously, also can only use sealed pad and internal thread lid to seal, the liquid in the cell can be opened and changed repeatedly to this condition.
(2) Complete sealing condition: in order to reach higher sealed requirement, can use sealing plug, sealed pad and internal thread lid simultaneously, add the cell body through the inlet with solution, fill in the inlet with the sealing plug again, evenly coat the external screw thread of cell external screw thread end and the internal thread surface of internal thread lid with quantitative glue, add sealed pad above the sealing plug, finally, the internal thread lid of screwing, carry out the complete sealing, ensure to carry out the complete sealing to the cell body and not pollute this internal solution of cell.
The invention has the following beneficial effects:
by adopting the technical scheme, the cuvette body is fused with an integrated quartz material, so that the measurement requirements of ultraviolet, visible and near-infrared bands can be met. The outer diameter of the internal thread cover is less than or equal to the side length of the cross section of the cuvette body, so that loading can be realized in most of test instruments. Meanwhile, different sealing modes can be selected according to different use requirements, a sealing plug, a sealing gasket and an internal thread cover can be used at the same time during general sealing, and the sealing can also be carried out only by using the sealing gasket and the internal thread cover; if the cuvette is required to be completely sealed, quantitative glue can be uniformly coated on the external thread at the external thread end of the cuvette and the internal thread surface of the internal thread cover to realize complete sealing.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood and to make the technical means implementable in accordance with the contents of the description, and to make the above and other objects, technical features, and advantages of the present invention more comprehensible, one or more preferred embodiments are described below in detail with reference to the accompanying drawings.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
FIG. 1 shows an exploded view of a well-sealed cuvette according to the present invention.
Fig. 2 shows a schematic top view of the cuvette body of the cuvette according to the invention, which can achieve a good sealing.
Fig. 3 shows a schematic top view of a sealing plug of a cuvette according to the invention, which can achieve a good seal.
FIG. 4 is a schematic top view of the gasket of a cuvette according to the present invention, which provides a good seal.
Fig. 5 shows a schematic top view of an internally threaded lid of a cuvette according to the invention, which enables a good seal to be achieved.
Fig. 6 shows a schematic diagram of an assembly structure of a cuvette capable of achieving good sealing according to the invention.
Description of the main reference numerals:
1-cuvette body, 2-cuvette external thread end, 3-liquid inlet, 4-sealing plug, 5-sealing pad and 6-internal thread cover.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Spatially relative terms, such as "below," "lower," "upper," "above," "upper," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the object in use or operation in addition to the orientation depicted in the figures. For example, if the items in the figures are turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the elements or features. Thus, the exemplary term "below" can encompass both an orientation of below and above. The article may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative terms used herein should be interpreted accordingly.
As shown in fig. 1 to 6, a cuvette capable of achieving good sealing comprises a cuvette body 1, a sealing plug 4, a sealing gasket 5 and an internal thread cover 6, and the attached drawings only show schematic diagrams of cuvettes with 10mm optical distances, but the cuvette structure of the invention can be applied to cuvettes with other specifications.
The cell body 1 is open-top's cavity of hollow cuboid cavity structure, the open-top department of cell body 1 is equipped with cell external screw thread end 2, the center of cell external screw thread end 2 runs through and is equipped with inlet 3, inlet 3 is connected with cell body 1's cavity intercommunication, the outer wall of cell external screw thread end 2 is equipped with the external screw thread. The cuvette body 1 is made of quartz integrated with melting. The quartz material integrated with melting can meet the measurement requirements of ultraviolet, visible and near infrared bands, and the cuvette structure capable of realizing good sealing is also suitable for cuvettes made of other materials.
The shape of sealing plug 4 and inlet 3 phase-matches, sealed 5 settings on the upper portion of sealing plug 4 that fill up, the inner wall of internal thread lid 6 is equipped with the cell external screw thread end 2 assorted internal thread. The sealing plug 4, the sealing gasket 5 and the internal thread cover 6 are screwed tightly to achieve a certain sealing effect.
The liquid inlet 3 is in the shape of an inverted frustum, and the inner diameter of the liquid inlet 3 is gradually reduced from top to bottom. The effect of inlet 3 is the filling opening of the solution in the cell body 1, and the design of the internal diameter from the top down of inlet 3 reduces gradually and adopts less internal diameter, pours into liquid into in the cell body 1 into the back, places sealing plug 4 in inlet 3, can reach better sealed effect.
The bottom of the sealing plug 4 is flush with the top of the inner wall of the cavity of the cuvette body 1, and the top of the sealing plug 4 exceeds the top of the external thread end 2 of the cuvette, such as exceeds 0.1 mm. Like this place sealed 5 on the upper portion of sealing plug 4, then when screwing internal thread lid 6 again for there is certain effort between sealed 5 and the sealing plug 4, thereby improves the laminating degree between sealing plug 4 and the 3 inner walls of inlet, guarantees better sealed effect. The sealing plug 4 is made of polytetrafluoroethylene.
The diameter of the sealing gasket 5 is the same as the inner diameter of the internally threaded cap 6. The function of the gasket 5 is to press the sealing plug 4 further and to achieve a sealing effect between the top of the male end 2 of the cuvette and the female cap 6. The thickness of the seal 5 is greater than or equal to the depth of the interior of the internally threaded cap 6 minus the height of the externally threaded end 2 of the cuvette. The sealing gasket 5 is made of polytetrafluoroethylene or silica gel.
The outer diameter of the internal thread cover 6 is less than or equal to the side length of the cross section of the cuvette body 1. The external diameter of the internal thread cover 6 is reduced, the external diameter of the internal thread cover 6 is ensured to be less than or equal to the side length of the cross section of the cuvette body 1, for example, less than 12.5mm, and loading can be realized in most of test instruments.
The cuvette external thread end 2 and the cuvette body 1 are of an integrated structure. The cell external screw thread end 2 is frosted, the top of the cell body 1 is frosted, and the internal screw thread cover 6 is frosted.
When needs are sealed completely, fill glue between the external screw thread of cell external screw thread end 2 and the internal thread of internal thread lid 6 and bond, glue can select resin glue or organic silica gel.
When the cuvette capable of realizing good sealing is used, different sealing modes can be selected according to different use requirements:
(1) general sealing condition capable of opening and reusing: adopt sealing plug 4, sealed 5 and the internal thread lid 6 of filling up to seal, add the cell body 1 with solution through inlet 3, can use sealing plug 4, sealed 5 and internal thread lid 6 simultaneously, also can only use sealed 5 and internal thread lid 6 of filling up to seal, the liquid in the cell can be opened and changed repeatedly to this condition.
(2) Complete sealing condition: in order to reach higher sealed requirement, can use sealing plug 4 simultaneously, sealed pad 5 and internal thread lid 6, add the solution into cell body 1 through inlet 3, again fill in sealing plug 4 into inlet 3, evenly coat the external screw thread of cell external screw thread end and the internal thread surface of internal thread lid 6 with quantitative glue, add sealed pad 5 above sealing plug 4, finally, internal thread lid 6 screws, seal completely, ensure to seal completely to cell body 1 and do not pollute the solution in the cell body 1.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications. Any simple modifications, equivalent changes and modifications made to the above exemplary embodiments shall fall within the scope of the present invention.
Claims (9)
1. The cuvette capable of being well sealed is characterized by comprising a cuvette body (1), a sealing plug (4), a sealing gasket (5) and an internal thread cover (6), wherein the cuvette body (1) is of a hollow cuboid cavity structure with an open top, a cuvette external thread end (2) is arranged at the open top of the cuvette body (1), a liquid inlet (3) penetrates through the center of the cuvette external thread end (2), the liquid inlet (3) is communicated and connected with the cavity of the cuvette body (1), and an external thread is arranged on the outer wall of the cuvette external thread end (2);
the shape and inlet (3) phase-match of sealing plug (4), sealed pad (5) set up the upper portion at sealing plug (4), the inner wall of internal thread lid (6) be equipped with cell external screw thread end (2) assorted internal thread.
2. A cuvette capable of achieving good sealing according to claim 1, wherein the shape of the liquid inlet (3) is an inverted frustum shape, and the inner diameter of the liquid inlet (3) is gradually reduced from top to bottom.
3. A cuvette capable of achieving a good seal according to claim 2, wherein the bottom of the sealing plug (4) is flush with the top of the inner wall of the cavity of the cuvette body (1), and the top of the sealing plug (4) exceeds the top of the external threaded end (2) of the cuvette.
4. A cuvette in which a good seal is achieved according to claim 3, characterized in that the diameter of the sealing gasket (5) is the same as the inner diameter of the internally threaded lid (6).
5. A cuvette in which a good seal is achieved according to claim 4, characterized in that the outer diameter of the internally threaded lid (6) is smaller than or equal to the side length of the cross section of the cuvette body (1).
6. A cuvette in which good sealing can be achieved according to claim 5, wherein the externally threaded end (2) of the cuvette is of an integral structure with the cuvette body (1).
7. A cuvette capable of achieving good sealing according to claim 1, wherein the material of the cuvette body (1) is fused quartz.
8. A cuvette capable of achieving good sealing according to claim 1, wherein the sealing plug (4) is made of teflon, and the sealing gasket (5) is made of teflon or silica gel.
9. A cuvette capable of achieving a good seal according to claim 1, wherein glue is filled between the external thread of the external threaded end (2) of the cuvette and the internal thread of the internal threaded cap (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210818554.7A CN114965282A (en) | 2022-07-13 | 2022-07-13 | Can realize well sealed cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210818554.7A CN114965282A (en) | 2022-07-13 | 2022-07-13 | Can realize well sealed cell |
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| Publication Number | Publication Date |
|---|---|
| CN114965282A true CN114965282A (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210818554.7A Pending CN114965282A (en) | 2022-07-13 | 2022-07-13 | Can realize well sealed cell |
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| CN (1) | CN114965282A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117123286A (en) * | 2023-09-01 | 2023-11-28 | 东海县浩远石英制品有限公司 | Sealed quartz digestion tube for measuring total nitrogen content of wastewater and preparation process thereof |
-
2022
- 2022-07-13 CN CN202210818554.7A patent/CN114965282A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117123286A (en) * | 2023-09-01 | 2023-11-28 | 东海县浩远石英制品有限公司 | Sealed quartz digestion tube for measuring total nitrogen content of wastewater and preparation process thereof |
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