CN109187346B - Portable food rapid detection device - Google Patents
Portable food rapid detection device Download PDFInfo
- Publication number
- CN109187346B CN109187346B CN201811133562.8A CN201811133562A CN109187346B CN 109187346 B CN109187346 B CN 109187346B CN 201811133562 A CN201811133562 A CN 201811133562A CN 109187346 B CN109187346 B CN 109187346B
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- sleeve
- hole
- detection device
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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
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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
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
Abstract
The invention discloses a portable food rapid detection device, comprising: the detection device comprises a first sleeve, a second sleeve and a detection device, wherein a first through hole is formed in the end part of the first sleeve, a sliding plate is sleeved in the first sleeve and can move along the axial direction of the first sleeve, a sealing film is sealed on the first through hole, an accommodating cavity is formed between the sliding plate and the first sleeve, a needle head is arranged on the sliding plate corresponding to the first through hole, and a detection agent is filled in the accommodating cavity; the second sleeve is sleeved on the periphery of the first sleeve and can rotate around the first sleeve, and a second through hole is formed in the end part of the second sleeve; and the L-shaped guide pipe comprises a vertical pipe and a horizontal pipe, the lower end of the vertical pipe is communicated with the second through hole, and a side wall of the horizontal pipe is communicated with a feeding pipe. According to the detection device, the reagent needing to detect the index is hermetically filled in the accommodating chamber, and then the sample to be detected is added into the L-shaped guide pipe through the feeding pipe, so that the reagent reacts with the sample, the component to be detected of the food can be detected semi-quantitatively, and the operation is convenient.
Description
Technical Field
The invention relates to the technical field of food detection. More particularly, the present invention relates to a portable food rapid detection device.
Background
The detection method of illegal additives or food additives in food in the current market usually comprises the steps of extracting, enriching or concentrating, performing chromatographic separation, and detecting by using an electronic capture, hydrogen flame, ultraviolet or other detectors. Along with the enhancement of the awareness of food safety, pollution-free green health foods are increasingly popular. A large number of semi-quantitative and even qualitative rapid detection methods are urgently needed in the market, and the detection method is generally characterized in that a sample does not need to be subjected to complex pretreatment, only a few minutes to more than ten minutes are needed to obtain a detection result, and whether a certain amount of target objects are contained in the sample or not or what range the content of the target objects is approximately in is preliminarily determined.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
The invention also aims to provide a portable food rapid detection device, wherein a reagent needing to be detected is hermetically filled in an accommodating chamber, and then a sample to be detected is added into an L-shaped conduit through a feeding pipe, so that the reagent reacts with the sample, and the component to be detected of the food can be detected semi-quantitatively, and the operation is convenient.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a portable food rapid inspection apparatus, including:
the detection device comprises a first sleeve, a second sleeve and a detection device, wherein the upper end of the first sleeve is closed, the lower end of the first sleeve is open, a first through hole is formed in the closed end of the first sleeve, a sliding plate is coaxially sleeved in the first sleeve and can move along the axial direction of the first sleeve, a sealing film is sealed on the first through hole, a containing cavity is formed between the sliding plate and the first sleeve, a needle head is arranged on the sliding plate corresponding to the first through hole, and a detection agent is filled in the containing cavity;
the upper end of the second sleeve is closed, the lower end of the second sleeve is opened, the second sleeve is coaxially sleeved on the periphery of the first sleeve, the closed end of the second sleeve is abutted against the closed end of the first sleeve, the second sleeve can rotate around the first sleeve, and the closed end of the second sleeve is provided with a second through hole with the same diameter as the first through hole;
the L-shaped guide pipe comprises a vertical pipe and a horizontal pipe, one end of the horizontal pipe is communicated with the upper end of the vertical pipe, the lower end of the vertical pipe is communicated with the second through hole, a piston is arranged in the horizontal pipe, the piston is connected with a piston rod to push the piston to move along the axial direction of the horizontal pipe, and a feeding pipe is communicated with one side wall of the horizontal pipe;
when the second sleeve rotates to the position where the second through hole is the same as the first through hole, the sliding plate is moved upwards to enable the needle head to puncture the sealing membrane, so that the first through hole is communicated with the second through hole.
Preferably, the portable food rapid detection device, a side of the sliding plate far away from the needle head is provided with a pushing mechanism, the pushing mechanism comprises:
one end of the third sleeve is fixedly connected with the lower end face of the sliding plate;
the sliding rod is coaxially sleeved in the third sleeve, the sliding rod can move along the axial direction of the third sleeve, the end part of the sliding rod, far away from the third sleeve, extends out of the third sleeve, and a spring is fixedly connected between the sliding rod and the sliding plate;
the first plate body is vertically and fixedly connected with the end part, far away from the third sleeve, of the sliding rod, a third through hole is formed in the first plate body, the circle center of the third through hole is located on the axis of the third sleeve, a circular arc-shaped limiting groove is further formed in the first plate body, the central angle of the limiting groove is 90 degrees, and one end of the limiting groove is located on the axis of the third sleeve;
one end of the second plate body is provided with a rotating rod corresponding to the third through hole, a limiting block corresponding to the limiting groove is arranged, the rotating rod stretches into the third through hole and can rotate around the third through hole, and the limiting block stretches into the limiting groove and can rotate along the limiting groove.
Preferably, the portable food rapid detection device, the one end that the dwang was kept away from to the second plate body is equipped with a circular shape and presses the clamp plate, press the clamp plate with the second plate body is perpendicular, press the diameter of clamp plate be greater than the second plate body with press the tip diameter of clamp plate contact.
Preferably, portable food short-term test device, the filling tube upper end port be equipped with the rubber buffer in order to seal the filling tube, filling tube upper end periphery is equipped with the external screw thread, is equipped with the internal thread in it for a protecting cover, the protecting cover is established with the cover with the filling tube spiro union the rubber buffer.
Preferably, in the portable food rapid detection device, a concave portion is provided on an end surface of the pressing plate away from the second plate body.
Preferably, in the portable device for rapidly detecting food, the first sleeve, the second sleeve and the L-shaped conduit are all made of transparent materials.
The invention at least comprises the following beneficial effects:
1. according to the portable food rapid detection device, the accommodating chamber is hermetically filled with the reagent needing to detect the index, and then the sample to be detected is added into the L-shaped guide pipe through the feeding pipe, so that the reagent reacts with the sample, the component to be detected of the food can be detected semi-quantitatively, and the operation is convenient.
2. When the portable food rapid detection device is in a non-working state, the second plate body is rotated to form an included angle of 90 degrees with the first plate body, so that the slide rod is difficult to push to move upwards even if the second plate body is interfered by external force, and a spring is fixedly connected between the slide rod and the sliding plate, so that even if the second plate body is subjected to large external acting force, the spring can also offset a part of external acting force, and through the mode, the sliding plate can be prevented from moving upwards to further cause the needle head to puncture the sealing membrane when the second plate body is subjected to the external acting force.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic structural diagram of a portable food rapid detection device according to one embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first plate according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a second plate according to another embodiment of the present invention;
fig. 4 is a schematic structural view of a first plate and a second plate in a vertical state according to another technical solution of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It should be noted that in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 4, a portable food rapid detection device includes:
the detection device comprises a first sleeve 1, a second sleeve 1 and a detection agent, wherein the upper end of the first sleeve 1 is closed, the lower end of the first sleeve 1 is open, a first through hole 11 is formed in the closed end of the first sleeve 1, a sliding plate 12 is coaxially sleeved in the first sleeve 11, the sliding plate 12 can move along the axial direction of the first sleeve 1, a sealing film 13 is sealed on the first through hole 11, a containing cavity is formed between the sliding plate 12 and the first sleeve 1, a needle 14 is arranged on the sliding plate 12 corresponding to the first through hole, and the containing cavity is filled with the detection agent;
the upper end of the second sleeve 2 is closed, the lower end of the second sleeve is opened, the second sleeve 2 is coaxially sleeved on the periphery of the first sleeve 1, the closed end of the second sleeve 2 is abutted against the closed end of the first sleeve 1, the second sleeve 2 can rotate around the first sleeve 1, and the closed end of the second sleeve 2 is provided with a second through hole 21 with the same diameter as that of the first through hole 11;
the L-shaped guide pipe comprises a vertical pipe 31 and a horizontal pipe 32, one end of the horizontal pipe 32 is communicated with the upper end of the vertical pipe 31, the lower end of the vertical pipe 31 is communicated with the second through hole 21, a piston 33 is arranged in the horizontal pipe 32, the piston 33 is connected with a piston rod 34 to push the piston 33 to move along the axial direction of the horizontal pipe 32, and a feeding pipe 35 is communicated with one side wall of the horizontal pipe 32;
when the second sleeve 2 rotates to the position where the second through hole 21 is the same as the first through hole 11, the sliding plate 12 is moved upwards to make the needle 14 pierce the sealing film 13, so that the first through hole 11 and the second through hole 21 are communicated.
The portable food rapid detection device disclosed by the invention has the working principle that: taking the detection of nitrate in vegetables as an example, before the test, a nitrate detection agent is filled in a containing chamber formed between a sliding plate 12 and a first sleeve 1, then the vegetables to be tested are chopped and added into distilled water for soaking for 5-10 min to obtain a soaking solution, then the soaking solution is added into a horizontal pipe 32 through a feeding pipe 35, then a piston 33 is pushed to smoothly flow into a vertical pipe 31, then a second sleeve 2 is rotated to enable a second through hole 21 and a first through hole 11 to be positioned at the same position, then the sliding plate 12 is pushed to move upwards, a needle 14 is enabled to puncture a sealing film 13, at the moment, the second through hole 21 is communicated with the first through hole 11, the soaking solution flows into the first sleeve 1 and undergoes a color reaction with the nitrate detection agent, and after the reaction is finished, the color of the soaking solution is observed and compared with the color of a standard colorimetric card, and the content range of nitrite in a vegetable sample can be known. The first sleeve 1, the second sleeve 2 and the L-shaped conduit are all made of transparent materials, so that the reaction can be observed conveniently. In practice, the accommodating chamber is sealed with a reagent for detecting the index. The detection device provided by the invention is convenient for on-site semi-quantitative detection of certain components of food, and is convenient to carry and operate.
In another technical solution, in the portable device for rapidly detecting food, a pushing mechanism is disposed on a side of the sliding plate 12 away from the needle 14, and the pushing mechanism includes:
one end of the third sleeve 4 is fixedly connected with the lower end face of the sliding plate 12;
the sliding rod 5 is coaxially sleeved in the third sleeve 4, the sliding rod 5 can move along the axial direction of the third sleeve 4, the end part, far away from the third sleeve 4, of the sliding rod 5 extends out of the third sleeve 4, and a spring 41 is fixedly connected between the sliding rod 5 and the sliding plate 12;
the first plate body 6 is vertically and fixedly connected with the end part, far away from the third sleeve 4, of the slide bar 5, a third through hole 61 is formed in the first plate body 6, the circle center of the third through hole 61 is located on the axis of the third sleeve 4, a circular arc-shaped limiting groove 62 is further formed in the first plate body 6, the circle center angle of the limiting groove 62 is 90 degrees, and one end of the limiting groove 62 is located on the axis of the third sleeve 4;
one end of the second plate body 7 is provided with a rotating rod 71 corresponding to the third through hole 61, and a limiting block 72 corresponding to the limiting groove 62, wherein the rotating rod 71 extends into the third through hole 61 and can rotate around the third through hole 61, and the limiting block 72 extends into the limiting groove 62 and can rotate along the limiting groove 62.
In the above technical solution, when the detection device is in a non-working state, the second plate 7 is rotated to form an included angle of 90 ° with the first plate 6, so that even if the second plate 7 is disturbed by an external force, the sliding rod 5 is hard to be pushed to move upwards, and the spring 41 is fixedly connected between the sliding rod 5 and the sliding plate 12, so that even if the second plate 7 is subjected to a large external acting force, the spring 41 can counteract a part of the external acting force, and in this way, when the second plate 7 is subjected to an external acting force, the sliding plate 12 can be prevented from moving the needle 14 upwards to puncture the sealing membrane 13; when the detection device is in a non-working state, the second plate body 7 is rotated, due to the limitation of the limiting block 72 and the limiting groove 62, the second plate body 7 can rotate only 90 degrees at most, at the moment, the second plate body 7 and the first plate body 6 are both in a vertical state, then the second plate body 7 is pushed, the slide rod 5 is further pushed to move upwards, the spring is compressed to the maximum compression position, and when the second plate body 7 is further pushed, the slide plate 12 can be pushed to move upwards, so that the needle 14 punctures the sealing film 13.
In another technical solution, in the portable food rapid detection device, a circular pressing plate 73 is disposed at one end of the second plate body 7 away from the rotating rod 71, the pressing plate 73 is perpendicular to the second plate body 7, and a diameter of the pressing plate 73 is greater than a diameter of an end portion of the second plate body 7 contacting the pressing plate 73. A pressing plate 73 is provided to facilitate pushing of the second plate 7 during use.
In another kind of technical scheme, portable food short-term test device, the filling tube 35 upper end mouth be equipped with rubber buffer 36 in order to seal filling tube 35, filling tube 35 upper end periphery is equipped with the external screw thread, is equipped with the internal thread in it for a protecting cover 37, protecting cover 37 and filling tube 35 spiro union are established with the cover rubber buffer 36. In this kind of scheme, when detection device was in non-operating condition, sealed rubber buffer 36 at filling tube 35 mouth then spiro union protecting cover 37 prevents that L shape pipe from being contaminated, and in the during operation, take off protecting cover 37 earlier, then take off rubber buffer 36, can follow filling tube 35 reinforced.
In another technical solution, in the portable food rapid detection device, a concave portion is provided on an end surface of the pressing plate 73 away from the second plate 7. The depression provided on the pressing plate 73 is adapted to the thumb of a person, which makes pushing the pressing plate 73 more labor-saving.
In another technical scheme, in the portable device for rapidly detecting food, the first sleeve 1, the second sleeve 2 and the L-shaped conduit are all made of transparent materials. The first sleeve 1, the second sleeve 2 and the L-shaped conduit are all made of transparent materials, so that the reaction can be observed conveniently.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (4)
1. Portable quick detection device of food includes:
the detection device comprises a first sleeve, a second sleeve and a detection device, wherein the upper end of the first sleeve is closed, the lower end of the first sleeve is open, a first through hole is formed in the closed end of the first sleeve, a sliding plate is coaxially sleeved in the first sleeve and can move along the axial direction of the first sleeve, a sealing film is sealed on the first through hole, a containing cavity is formed between the sliding plate and the first sleeve, a needle head is arranged on the sliding plate corresponding to the first through hole, and a detection agent is filled in the containing cavity;
the upper end of the second sleeve is closed, the lower end of the second sleeve is opened, the second sleeve is coaxially sleeved on the periphery of the first sleeve, the closed end of the second sleeve is abutted against the closed end of the first sleeve, the second sleeve can rotate around the first sleeve, and the closed end of the second sleeve is provided with a second through hole with the same diameter as the first through hole;
the L-shaped guide pipe comprises a vertical pipe and a horizontal pipe, one end of the horizontal pipe is communicated with the upper end of the vertical pipe, the lower end of the vertical pipe is communicated with the second through hole, a piston is arranged in the horizontal pipe, the piston is connected with a piston rod to push the piston to move along the axial direction of the horizontal pipe, and a feeding pipe is communicated with one side wall of the horizontal pipe;
when the second sleeve rotates to the position where the second through hole is the same as the first through hole, the sliding plate is moved upwards to enable the needle head to puncture the sealing membrane, so that the first through hole is communicated with the second through hole;
one side that the syringe needle was kept away from to the slide is equipped with push mechanism, push mechanism includes:
one end of the third sleeve is fixedly connected with the lower end face of the sliding plate;
the sliding rod is coaxially sleeved in the third sleeve, the sliding rod can move along the axial direction of the third sleeve, the end part of the sliding rod, far away from the third sleeve, extends out of the third sleeve, and a spring is fixedly connected between the sliding rod and the sliding plate;
the first plate body is vertically and fixedly connected with the end part, far away from the third sleeve, of the sliding rod, a third through hole is formed in the first plate body, the circle center of the third through hole is located on the axis of the third sleeve, a circular arc-shaped limiting groove is further formed in the first plate body, the central angle of the limiting groove is 90 degrees, and one end of the limiting groove is located on the axis of the third sleeve;
one end of the second plate body is provided with a rotating rod corresponding to the third through hole, a limiting block is arranged corresponding to the limiting groove, the rotating rod extends into the third through hole and can rotate around the third through hole, and the limiting block extends into the limiting groove and can move along the limiting groove;
the first sleeve, the second sleeve and the L-shaped guide pipe are all made of transparent materials.
2. The portable food rapid detection device according to claim 1, wherein a circular pressing plate is disposed at an end of the second plate body away from the rotating rod, and the pressing plate is perpendicular to the second plate body.
3. The portable food rapid detection device according to claim 1, wherein a rubber plug is provided at the upper end of the charging tube to seal the charging tube, an external thread is provided at the periphery of the upper end of the charging tube, an internal thread is provided in a protective cover, and the protective cover is screwed with the charging tube to cover the rubber plug.
4. The portable food rapid detection device according to claim 2, wherein the pressing plate is provided with a concave portion on an end surface thereof away from the second plate body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811133562.8A CN109187346B (en) | 2018-09-27 | 2018-09-27 | Portable food rapid detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811133562.8A CN109187346B (en) | 2018-09-27 | 2018-09-27 | Portable food rapid detection device |
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| Publication Number | Publication Date |
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| CN109187346A CN109187346A (en) | 2019-01-11 |
| CN109187346B true CN109187346B (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811133562.8A Active CN109187346B (en) | 2018-09-27 | 2018-09-27 | Portable food rapid detection device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111893302B (en) * | 2020-06-23 | 2022-07-26 | 洛阳双瑞万基钛业有限公司 | Point type process and device for detecting carbon value of sponge titanium by quickly reducing titanium tetrachloride |
| CN112557382B (en) * | 2020-11-27 | 2022-09-27 | 通标标准技术服务（天津）有限公司 | Food transgenic component detection device |
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| CN101203176A (en) * | 2005-06-25 | 2008-06-18 | 山桑姆有限公司 | Breath sampling device |
| CN103884709A (en) * | 2014-04-09 | 2014-06-25 | 北京思弗威生物科技有限公司 | Portable food safety detector |
| CN204655505U (en) * | 2015-05-08 | 2015-09-23 | 黄濒颍 | Multifunction folding solution storage device |
| CN206540835U (en) * | 2017-01-23 | 2017-10-03 | 杭州天迈生物科技有限公司 | A kind of Quantitative detection vacuum tube of nitrite in food |
-
2018
- 2018-09-27 CN CN201811133562.8A patent/CN109187346B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101203176A (en) * | 2005-06-25 | 2008-06-18 | 山桑姆有限公司 | Breath sampling device |
| CN103884709A (en) * | 2014-04-09 | 2014-06-25 | 北京思弗威生物科技有限公司 | Portable food safety detector |
| CN204655505U (en) * | 2015-05-08 | 2015-09-23 | 黄濒颍 | Multifunction folding solution storage device |
| CN206540835U (en) * | 2017-01-23 | 2017-10-03 | 杭州天迈生物科技有限公司 | A kind of Quantitative detection vacuum tube of nitrite in food |
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| CN109187346A (en) | 2019-01-11 |
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