CN217505557U - Sleeve type temperature-measurable migration test pool - Google Patents
Sleeve type temperature-measurable migration test pool Download PDFInfo
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- CN217505557U CN217505557U CN202220940273.4U CN202220940273U CN217505557U CN 217505557 U CN217505557 U CN 217505557U CN 202220940273 U CN202220940273 U CN 202220940273U CN 217505557 U CN217505557 U CN 217505557U
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Abstract
The utility model discloses a sleeve type temperature-measurable migration test pool, which comprises a base, an inner sleeve and an outer sleeve; the bottom of the inner sleeve is arranged on the base; the outer sleeve is sleeved on the outer wall of the inner sleeve, so that the inner sleeve moves up and down, and a space formed by the outer sleeve and the inner sleeve is used as a cavity; the top end of the outer sleeve is provided with a liquid injection port; and a temperature sensor is arranged in the cavity and used for monitoring the temperature of the simulation liquid in the cavity. The migration pool has the function of monitoring the temperature of the simulation liquid in the inner sleeve at any time, so that the temperature of the migration experiment is controllable, and the accuracy of the migration experiment result is ensured.
Description
Technical Field
The utility model relates to a migration test pond, concretely relates to telescopic measurable temperature migration test pond.
Background
The safety of food contact materials is closely related to food safety. To test the safety of food contact materials, migration tests on food contact materials are required. 3.3 in the national standard GB 5009.156-2016 specifically requires: the migration test assay object is a surface that may come into direct contact with food under reasonably expected use conditions. Therefore, a single-side migration test using a migration test cell is required for a sample that contacts food on one side and has inconsistent material properties on both sides. Some commonly used migration test pool illustrations are given in the standard, and some commercial migration test pools are also sold in the market at present, but one problem generally exists: the maximum volume (V) of each migration testing pool is a fixed value, the area (S) of the contact surface of the sample to be tested and the soaking liquid in the migration testing pool is also a fixed value, and if the soaking liquid is completely filled in the whole sleeve in the migration testing pool, the soaking area/volume ratio (S/V ratio) can only be a fixed value; if need carry out the migration test under different S/V ratios, the immersion fluid just can not fill whole migration pond sleeve, will lead to remaining more air in the inner skleeve like this, if the easy oxidation of sample or the material that awaits measuring be easy volatile substance, in long-time migration test process, can lead to sample oxidation (if rust), or the material that awaits measuring (like formaldehyde) volatilizees to the air of intracavity top to lead to the test result inaccurate.
In addition, most of the existing temperature measurement migration test tanks cannot monitor the temperature of the simulation liquid in the inner sleeve.
SUMMERY OF THE UTILITY MODEL
In order to solve at least one technical problem existing in the background technology, the utility model provides a sleeve-type temperature-measurable migration test pool.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a sleeve type temperature-measurable migration test pool comprises a base, an inner sleeve and an outer sleeve; the bottom of the inner sleeve is arranged on the base; the outer sleeve is sleeved on the outer wall of the inner sleeve to move up and down along the outer wall of the inner sleeve, and a space formed by the outer sleeve and the inner sleeve is used as a cavity; the top end of the outer sleeve is provided with a liquid injection port; a temperature sensor is arranged in the cavity and used for monitoring the temperature of the simulation liquid in the cavity.
Furthermore, an annular groove is formed in the outer wall of the inner sleeve and used for placing a sealing ring.
Further, the annular groove is arranged on the upper half part of the outer wall of the inner sleeve.
Furthermore, two threaded holes are formed in the lower half part of the outer sleeve, and a jackscrew is arranged in each threaded hole.
Furthermore, the liquid injection port protrudes out of the top end of the outer sleeve, and the outer side of the liquid injection port is provided with threads for assembling a threaded cap; the threaded cap is provided with an insertion hole for inserting a temperature measuring rod of the thermocouple temperature sensor.
Further, the bottom of the inner sleeve and the base are locked by a clamp.
Further, a rubber gasket is attached to the inner wall of the clamp.
Further, the bottom of the inner sleeve extends outwards and is provided with an annular groove for embedding the sealing ring.
Further, the bottom edge and the base edge of the inner sleeve are both designed as an oblique angle.
Further, the inner wall of the outer sleeve is smooth.
Compared with the prior art, the utility model, its beneficial effect lies in:
the utility model discloses to the migration pond legend that gives in the GB 5009.156-2016 standard and each type of migration pond ubiquitous not enough of market, design a section easy and simple to handle, the sample test demand that can the volume of quick adjustment cavity, satisfy various different S/V ratios has the migration pond of monitoring temperature function simultaneously. The migration pool is designed into a movable sleeve type, the base, the inner sleeve and the outer sleeve are made of stainless steel or polytetrafluoroethylene materials, and the base and the bottom of the inner sleeve are clamped tightly through a clamp and the sealing performance of the base and the bottom of the inner sleeve is ensured through a rubber ring; whole cavity comprises interior outer sleeve, and interior outer sleeve all designs into cylindricly, and test area S is fixed, can adjust the volume of cavity through reciprocating the outer sleeve to change the S/V ratio of soaking. The inner sleeve outer wall designs a recess, and the embedded annular polytetrafluoroethylene sealing washer that has guaranteed the gliding nature between the interior outer sleeve through this sealing washer, has also guaranteed the leakproofness between the interior outer sleeve simultaneously. This migration pond reserves one at outer sleeve top and annotates the liquid mouth, annotates the liquid mouth and has the effect of toward interior filling solution and the experiment end back toward pouring out the solution outside beginning, then can insert a thermocouple temperature sensor in liquid mouth department at the experimentation, monitors the temperature of simulation liquid in the cavity at any time through this sensor to guarantee the accuracy of experiment.
Drawings
Fig. 1 is a schematic view of an overall structure of a sleeve type temperature-measurable migration test cell according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic structural view of a screw cap;
FIG. 4 is a schematic view of the structure of the clamp;
in the figure: 1. a base; 2. an inner sleeve; 3. a sleeve; 4. clamping a hoop; 5. a rubber gasket; 6. a rubber seal ring; 7. a polytetrafluoroethylene seal ring; 8. a liquid injection port; 9. carrying out top thread; 10. a screw cap; 11. a jack; 12. a thermocouple temperature sensor; 13. a digital temperature display.
Detailed Description
Example (b):
in the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, or indirectly coupled through an intermediary, which may be referred to as communication between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art. The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
Referring to fig. 1-4, the mobile testing cell with thermometric migration provided in this embodiment mainly includes a base 1, an inner sleeve 2, and an outer sleeve 3.
The base 1 is used as a sample bearing part and is made of stainless steel or polytetrafluoroethylene, so that the base is corrosion-resistant and difficult to rust, and has good rigidity and processability. Base 1 and inner skleeve 2 lock through clamp 4, and 1 edge of base and 2 edges of inner skleeve all design into the oblique angle, and when clamp 4 locked, atress evenly distributed was in oblique angle department to protection inner skleeve and base 1 also can guarantee that both assemble well, can not the dislocation. In addition, a layer of rubber gasket 5 is attached to the inner wall of the clamp 4, the function of protecting the edges of the inner sleeve 2 and the base 1 is achieved, the clamp 4 is convenient and quick to use, and no other auxiliary tool is needed to be used during locking.
This inner skleeve 2 is made by stainless steel or polytetrafluoroethylene material, and the inner skleeve 2 bottom is outwards extended to have an annular groove that can imbed the sealing washer, be used for installing rubber seal 6, guarantee both leakproofness through rubber seal 6. A groove is designed on the upper portion of the outer wall of the inner sleeve 2, an annular polytetrafluoroethylene sealing ring 7 is embedded in the groove, and the sealing performance of the inner sleeve 2 and the outer sleeve 3 is guaranteed while the sliding performance of the outer sleeve 3 is guaranteed through the polytetrafluoroethylene sealing ring 7. Of course, the size of the inner sleeve 2 may be selected according to the experimental sample.
The outer sleeve 3 is made of stainless steel or polytetrafluoroethylene materials, the inner wall of the outer sleeve 3 is machined into a smooth surface, the sliding property of the sleeve is improved, and meanwhile, the sealing effect with a polytetrafluoroethylene sealing ring 7 can be achieved, a liquid injection port 8 is formed in the top end of the outer sleeve 3 in a protruding mode, so that solution can be conveniently injected into the inner sleeve 2, and the solution in the inner sleeve 2 can be conveniently poured outwards; two symmetrical threaded holes are additionally formed in the bottom of the outer sleeve 3, jackscrews 9 are respectively arranged in the threaded holes, and after the position of the outer sleeve 3 is determined, the jackscrews 9 are locked to achieve the positioning effect of the outer sleeve 3. Therefore, even if the whole migration pool is heated or cooled in the experimental process, the liquid injection port 8 above the outer sleeve 3 is not in a closed state, so that the expansion with heat and the contraction with cold of the solution in the cavity cannot cause the solution to overflow through the gap between the outer sleeve 3 and the inner sleeve 2 and the gap at the clamp of the base, and the integrity of the solution and the accuracy of the experimental result can be ensured in the long-time migration experimental process.
The outer side of the liquid injection port 8 is provided with screw threads, and the screw cap 10 can be tightly installed on the outer sleeve 3 through the liquid injection port 8. The central part of the screw cap 10 is provided with an inserting hole 11, a temperature measuring rod of a thermocouple temperature sensor 12 can extend into the cavity through the inserting hole to monitor the temperature of the simulation liquid, and then the current temperature of the simulation liquid is displayed through a digital temperature display 13 to achieve the temperature monitoring effect.
To sum up, the utility model innovates the design and the structure on the basis of the legend of the migration pool in the GB 5009.156-2016 standard, and can completely meet the test requirement in the GB 5009.156-2016 standard.
The migration pool is simple in design and easy and convenient to operate, can be assembled without using additional tools, is uniform in stress of the clamping device, guarantees the whole tightness, and achieves the effect of protecting the migration pool and a sample.
This migration pond uses base, clamp, interior outer sleeve and temperature sensor components of a whole that can function independently design, conveniently washs and deposits, and certain part damages the alternative replacement, increase of service life.
The test area S of base is fixed, can change the cavity internal volume and change the S/V ratio through sliding the outer sleeve from top to bottom, makes the application range in migration pond wider, has also saved the expense of purchasing different model migration ponds, can also effectively deal with some S/V than extremely little samples.
The migration pool has a telescopic function, and when the outer sleeve is folded, the migration pool is more convenient to store, and the storage space is greatly saved.
The migration pool has the function of monitoring the temperature of the simulated liquid in the cavity at any time, so that the temperature of the migration experiment has controllability, and the accuracy of the migration experiment result is ensured.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. A sleeve type temperature-measurable migration test pool is characterized by comprising a base and a sleeve, wherein the sleeve comprises an inner sleeve and an outer sleeve; the bottom of the inner sleeve is arranged on the base; the outer sleeve is sleeved on the outer wall of the inner sleeve and moves up and down along the outer wall of the inner sleeve, and a space formed by the outer sleeve and the inner sleeve is used as a cavity; the top end of the outer sleeve is provided with a liquid injection port; a temperature sensor is arranged in the cavity and used for monitoring the temperature of the simulation liquid in the cavity.
2. The sleeve-type thermometric migration test cell according to claim 1, wherein an annular groove is provided on the outer wall of said inner sleeve for receiving a seal ring.
3. The sleeve-type temperature-measurable migration test cell according to claim 2, wherein the annular groove is disposed on an upper half portion of the outer wall of the inner sleeve.
4. The spool-type thermometric migration test cell according to claim 1, wherein two threaded holes are formed in the lower half of said outer sleeve, each of said threaded holes having a jackscrew disposed therein.
5. The telescope-type temperature-measurable migration test cell according to claim 1, wherein the liquid injection port protrudes from the top end of the outer sleeve, and threads are provided on the outer side of the liquid injection port for assembling a screw cap; the threaded cap is provided with an insertion hole for inserting a temperature measuring rod of the thermocouple temperature sensor.
6. The spool type thermometric migration test cell according to claim 1, wherein the bottom of the inner sleeve and the base are secured by a clamp.
7. The spool style thermometric migration test cell according to claim 6, wherein a gasket is attached to the inside wall of said collar.
8. The spool-type temperature-measurable migration test cell according to claim 1 or 6, wherein the bottom of said inner spool extends outwardly and has an annular groove for receiving the sealing ring.
9. The spool-type thermometric migration test cell according to claim 6, wherein the bottom edge and the base edge of the inner sleeve are beveled.
10. The telescopic, thermometric migration test cell of claim 1 or 2, wherein the inner wall of said outer sleeve is smooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220940273.4U CN217505557U (en) | 2022-04-21 | 2022-04-21 | Sleeve type temperature-measurable migration test pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220940273.4U CN217505557U (en) | 2022-04-21 | 2022-04-21 | Sleeve type temperature-measurable migration test pool |
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| CN217505557U true CN217505557U (en) | 2022-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220940273.4U Active CN217505557U (en) | 2022-04-21 | 2022-04-21 | Sleeve type temperature-measurable migration test pool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116291394A (en) * | 2023-03-23 | 2023-06-23 | 中国地质大学（北京） | Shallow well soil layer stepped geothermal temperature measurement drilling device |
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2022
- 2022-04-21 CN CN202220940273.4U patent/CN217505557U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116291394A (en) * | 2023-03-23 | 2023-06-23 | 中国地质大学（北京） | Shallow well soil layer stepped geothermal temperature measurement drilling device |
| CN116291394B (en) * | 2023-03-23 | 2024-02-02 | 中国地质大学（北京） | Shallow well soil layer stepped geothermal temperature measurement drilling device |
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