CN111947984B - Layered sampling device for food detection - Google Patents
Layered sampling device for food detection Download PDFInfo
- Publication number
- CN111947984B CN111947984B CN202010706943.1A CN202010706943A CN111947984B CN 111947984 B CN111947984 B CN 111947984B CN 202010706943 A CN202010706943 A CN 202010706943A CN 111947984 B CN111947984 B CN 111947984B
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- China
- Prior art keywords
- sample
- pipeline
- sample suction
- switch door
- outer pipeline
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
Abstract
The invention relates to a layered sampling device for food detection, which comprises: the outer pipeline, the inner pipeline, connecting cap and first holding case, outer pipeline top and inner pipeline top connect the connecting cap lower extreme respectively, first holding case is connected to outer pipeline bottom, outer pipeline includes a plurality of first sample absorbing holes, a plurality of third sample absorbing holes, a plurality of first sample absorbing pipes and a plurality of switch door, first sample absorbing holes distributes in the lateral wall of outer pipeline, first sample absorbing holes and first holding case are connected to first sample absorbing pipes, the switch door layering sets up in the lateral wall of outer pipeline, the third sample absorbing holes sets up in the switch door lateral surface, the inner pipeline includes a plurality of fluting, the second sample absorbing holes, a plurality of expansion plates and a plurality of second holding case, the expansion plates sets up in grooved inner wall, the second sample absorbing holes sets up in the fluting inside, the second sample absorbing holes connect the second holding case through the second sample absorbing pipe, the second holds case longitudinal arrangement and the inside of inner pipeline, first sample absorbing device is set up to the first sample absorbing device, the second sample absorbing device is set up to the second holding case.
Description
Technical Field
The invention relates to the field of food detection, in particular to a layered sampling device for food detection.
Background
In industries closely related to daily life of people, food safety is the most concerned by masses, whether the food safety is directly related to the self health of people or even life safety, in order to ensure the food safety, the national food safety supervision department can irregularly sample and detect food circulated in the market, for liquid foods, the sampling process is particularly important, a lot of liquid foods are not necessarily uniform liquid at present, a lot of liquid foods are in a turbid state and are layered when stationary, the current liquid sampler can only extract samples for uniform liquid, and can not comprehensively detect the content of components of liquid aiming at liquid which is not uniform, or can extract samples of different layers by manually moving the sampler up and down or manually mixing the samples before extracting the samples, so that the time and the labor are wasted, and the operation is inconvenient; meanwhile, when the layered sampling is carried out, the liquid on a part of the upper layer can be brought to the lower layer on the pipe wall when the sampling pipe stretches into the liquid from top to bottom, so that the liquid on the lower layer can be mixed with a trace amount of the upper layer liquid, and the detection error occurs.
Disclosure of Invention
The invention aims to:
aiming at the liquid with uneven mixing, the content of the components of the liquid cannot be comprehensively detected, or the sampler needs to be manually moved up and down to extract samples of different layers, or the samples are manually mixed uniformly before being extracted and then extracted, so that the time and the labor are wasted, and the operation is inconvenient; meanwhile, when the sampling tube stretches into liquid from top to bottom, part of the liquid on the upper layer is brought to the lower layer on the tube wall, so that the liquid on the lower layer can be mixed with a trace amount of the liquid on the upper layer, and the problem of error in detection is solved.
The technical scheme is as follows:
a layered sampling device for food detection for performing sample extraction on a liquid food product, comprising: the outer pipeline, the inner pipeline, connecting cap and first case that holds, the outer pipeline set up in the inner pipeline outside, outer pipeline top and the inner pipeline top is connected respectively the connecting cap lower extreme, the outer pipeline bottom is connected first case that holds, the inner pipeline bottom contact first case that holds, the outer pipeline includes a plurality of first sample suction holes, a plurality of third sample suction holes, a plurality of first sample suction pipes and a plurality of switch door, first sample suction holes distribute in the lateral wall of outer pipeline, first sample suction pipe is connected first sample suction holes with first case that holds, the switch door layering set up in the lateral wall of outer pipeline, the third sample suction holes set up in switch door lateral surface, the inner pipeline include a plurality of flutings, second sample suction holes, a plurality of expansion plate and a plurality of second hold the case, the fluting for the position one-to-one of switch position of outer pipeline corresponds, the fluting big and small sample suction holes with the second sample suction holes sets up in the second sample container, the second sample suction holes sets up in the second sample container is opened to the second sample container.
As a preferable mode of the invention, the first sample suction hole and the third sample suction hole are opened obliquely downwards, the first sample suction pipe is divided into a front section part and a rear section part, the front section part of the first sample suction pipe and the rear section part of the first sample suction pipe are in a tower-tip shape, and the inclination directions of the front section part of the first sample suction pipe and the rear section part of the first sample suction pipe are opposite.
As a preferable mode of the invention, the outer pipeline further comprises a plurality of accommodating grooves, the switch door is arranged in the accommodating grooves and is a telescopic door, a plurality of third sample sucking pipelines are arranged in the switch door, and the third sample sucking pipelines are connected with each other.
As a preferable mode of the invention, the bottom of the connecting cap is provided with a cylindrical groove, the inner side wall of the cylindrical groove is provided with an internal thread, the outer side of the outer pipe is provided with an external thread, and the outer pipe and the connecting cap are in threaded connection with the external thread through the internal thread.
As a preferred mode of the present invention, the inner pipe is fixed to the top of the cylindrical groove.
As a preferable mode of the invention, the inner side wall of the outer pipeline is provided with two piston rings, the piston rings are respectively arranged on the upper side and the lower side of the position where the switch door is located, the piston rings are adjacent to the switch door, and the piston rings are used for isolating liquid.
As a preferable mode of the present invention, the second sample suction hole is provided with a filter screen for filtering impurities in the liquid food.
As a preferable mode of the invention, an electronic valve is arranged at the joint of the second sample suction pipeline and the second accommodating box, and the electronic valve is used for controlling the opening and closing states of the second accommodating box.
As a preferred mode of the present invention, the sample processing device further comprises a processing device, wherein the processing device is connected with the first sample sucking device, the second sample sucking device, the switch door and the electronic valve, and the processing device is used for controlling the opening and closing of the first sample sucking device, the second sample sucking device, the switch door and the electronic valve.
As a preferred mode of the invention, the connecting cap is provided with a plurality of control buttons, and the control buttons are used for giving control instructions to the processing device.
The invention has the following beneficial effects:
the invention adopts a plurality of layered sample sucking holes and a plurality of corresponding second holding boxes, thereby being convenient for sampling liquid foods in each layer independently and simultaneously, and solving the problems that aiming at liquid with uneven mixing, the content of the components of the liquid cannot be comprehensively detected, or samples in different layers can be extracted only by manually moving a sampler up and down, or the samples are extracted after being mixed evenly before being extracted, time and labor are wasted, and the operation is inconvenient;
before sampling, liquid food distributed near the surface of the outer pipeline is absorbed into the first accommodating box by utilizing the first absorbing holes distributed on the outer pipeline, so that the liquid in a part of the upper layer is absorbed by the pipe wall when the sampling pipe stretches into the liquid from top to bottom, and then the liquid food is sampled, thereby avoiding the liquid food mixing with the liquid in a part of the upper layer from the pipe wall to the lower layer when the sampling pipe stretches into the liquid from top to bottom, and further reducing the possibility of errors in detection.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a first schematic diagram of the present invention;
FIG. 2 is a second schematic diagram of the present invention;
fig. 3 is a schematic view of the opening and closing door of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Embodiment one:
reference is made to fig. 1-3. A layered sampling device for food detection for performing sample extraction on a liquid food product, comprising: the outer pipeline 1, the inner pipeline 2, the connecting cap 3 and the first case 4 that holds, outer pipeline 1 set up in the outer side wall of inner pipeline 2, outer pipeline 1 top and inner pipeline 2 top are connected respectively the 3 lower extreme of connecting cap, outer pipeline 1 bottom is connected first case 4 that holds, inner pipeline 2 bottom contact first case 4 that holds, outer pipeline 1 includes a plurality of first sample suction holes 5, a plurality of third sample suction holes 6, a plurality of first sample suction pipes 7 and a plurality of switch door 8, first sample suction holes 5 distribute in outer pipeline 1's lateral wall, first sample suction pipe 7 connect first sample suction holes 5 with first case 4 holds, switch door 8 layering set up in outer pipeline 1's lateral wall, third sample suction holes 6 set up in switch door 8 lateral surface, inner pipeline 2 includes a plurality of fluting 9, second sample suction holes 10, a plurality of expansion plates 11 and second sample holes 12 hold groove 9, second sample suction holes 5 distribute in second sample holes 2 with second sample holes 12 the second sample holes 2 sets up in the second sample suction holes 12 sets up in the second sample hole 2 the second sample hole 1 sets up in the second sample hole 1 and the second sample hole 10 sets up the second sample hole 1 and the second sample hole 1 sets up the second sample hole 1 and the second sample hole 10.
As a preferable mode of the present invention, the first sampling hole 5 and the third sampling hole 6 are opened obliquely downward, the first sampling pipe 7 is divided into a front section and a rear section, the front section of the first sampling pipe 7 and the rear section of the first sampling pipe 7 are in a tower shape, and the front section of the first sampling pipe 7 and the rear section of the first sampling pipe 7 are in opposite oblique directions.
As a preferred mode of the present invention, the outer pipe 1 further includes a plurality of accommodating grooves 13, the switch door 8 is disposed in the accommodating grooves 13, the switch door 8 is a telescopic door, a plurality of third sample sucking pipes 14 are disposed inside the switch door 8, and the third sample sucking pipes 14 are connected with each other.
As a preferable mode of the invention, a cylindrical groove is formed in the bottom of the connecting cap 3, an internal thread is formed in the inner side wall of the cylindrical groove, an external thread is formed on the outer side of the outer pipe 1, and the outer pipe 1 and the connecting cap 3 are in threaded connection with the external thread through the internal thread.
As a preferred form of the invention, the inner pipe 2 is secured to the top of the cylindrical recess.
As a preferred mode of the present invention, the inner side wall of the outer pipe 1 is provided with two piston rings 15, the piston rings 15 are respectively disposed on the upper side and the lower side of the position of the switch door 8, the piston rings 15 are adjacent to the switch door 8, and the piston rings 15 are used for isolating liquid.
As a preferred mode of the present invention, the second sample suction hole 10 is provided with a filter screen for filtering impurities in the liquid food.
As a preferred mode of the present invention, an electronic valve is provided at the junction of the second sample suction pipe 16 and the second housing box 12, and the electronic valve is used for controlling the open/close state of the second housing box 12.
As a preferred embodiment of the present invention, the apparatus further comprises a processing device, wherein the processing device is connected to the first sample suction device, the second sample suction device, the switch door 8 and the electronic valve, and the processing device is used for controlling the opening and closing of the first sample suction device, the second sample suction device, the switch door 8 and the electronic valve.
As a preferred form of the invention, the connection cap 3 is provided with control buttons for giving control instructions to the processing device.
In the specific implementation process, when the device stretches into the liquid food, the device slowly stretches into the liquid lower layer from the upper liquid layer, and in the process, as the outer pipeline 1 of the device contacts the liquid food, a certain amount of liquid food is adhered to the outer pipeline 1, so that the liquid food adhered to the outer side of the outer pipeline 1 can be mixed with the liquid food on the lower layer whenever the device stretches downwards, and layering of the liquid food is damaged to a certain degree.
Therefore, a layered sampling device is provided, wherein the outer pipe 1 is disposed outside the inner pipe 2, the top end of the outer pipe 1 and the top end of the inner pipe 2 are respectively connected with the lower end of the connecting cap 3, the bottom end of the outer pipe 1 is connected with the first accommodating box 4, the bottom end of the inner pipe 2 contacts with the first accommodating box 4, the first sample sucking holes 5 are distributed on the outer side wall of the outer pipe 1, the first sample sucking holes 7 are connected with the first accommodating box 4, the switch door 8 is disposed on the outer side wall of the outer pipe 1 in a layered manner, the switch door 8 is disposed in the accommodating groove 13, the switch door 8 is a telescopic door, a plurality of third sample sucking pipes 14 are disposed inside the switch door 8, and the third sample sucking pipes 14 are connected with each other. The third sample suction hole 6 sets up in switch door 8 lateral surface, inner tube 2 includes a plurality of flutings 9, second sample suction hole 10, a plurality of expansion plate 11 and a plurality of second hold case 12, fluting 9 is for the position one-to-one of inner tube 2 and switch door 8 for the position of outer tube 1, the size of fluting 9 is unanimous with the open-ended size that leaves behind switch door 8 opens, expansion plate 11 sets up in fluting 9's inner wall, second sample suction hole 10 sets up in fluting 9 is inside, second sample suction hole 10 passes through second sample suction pipe 16 and connects second and hold case 12, second holds case 12 longitudinal arrangement and the inside of inner tube 2, first hold case 4 sets up first sample suction device, second hold case 12 sets up the second sample suction device. The first sample suction hole 5 and the third sample suction hole 6 are opened in a downward inclined mode, the first sample suction pipe 7 is divided into a front section part and a rear section part, the front section part of the first sample suction pipe 7 and the rear section part of the first sample suction pipe 7 are in a cone-tip shape, and the inclination directions of the front section part of the first sample suction pipe 7 and the rear section part of the first sample suction pipe 7 are opposite.
In actual work, when needs are sampled, the detection personnel vertically stretch into liquid food with the device in, control button drive processing apparatus control first sample suction device on the connecting cap 3 opens, first sample suction device control first hold the pressure in the case 4 diminish, thereby make the pressure in the first sample suction pipe 7 diminish, thereby make first sample suction hole 5 can absorb a part hugs closely the upper and lower floor mixed liquid in outer tube 1 outside, first sample suction hole 5 absorbs mixed liquid to first hold case 4, and then, the pressure in the first hold case 4 increases gradually to unanimous with liquid pressure, thereby first hold case 4, first sample suction pipe 7 and first sample suction hole 5 stop absorbing liquid. For the third sample well 6, a portion of the liquid food product is directly contained by physical means, i.e. a portion of the liquid food product is allowed to flow through the third sample well 6 into the third sample tube 14.
Furthermore, the control button drive processing device that the inspection personnel set up on through the connecting cap 3 controls the switch door 8 shrink to holding tank 13 in to expose the fluting 9 of inner tube 2, and then control expansion plate 11 extension, expansion plate 11 sets up around the inside wall of fluting 9, consequently can frame the outside partial region of sampling device after the expansion plate 11 extension, thereby can follow the regional in the quilt frame and take a sample, avoid the in-process of taking a sample to the liquid food of adjacent layering region of sweep, thereby make the testing result after the sample error appear. The processing device controls the second sample suction device to reduce the pressure in the second accommodating cavity, so that the second sample suction hole 10 and the second sample suction pipeline 16 can perform the suction sampling of the liquid food, and when the pressure in the second accommodating cavity is increased to be consistent with the liquid food, the sampling is stopped, and meanwhile, the processing device controls the electronic valve to be closed.
The cylinder type groove has been seted up to connecting cap 3 bottom, and the inside wall of cylinder type groove is provided with the internal thread, and outer pipeline 1 outside sets up the external screw thread, and outer pipeline 1 passes through internal screw thread and external screw thread threaded connection with connecting cap 3. The inner pipe 2 is fixed on top of the cylindrical groove. The inside wall of outer pipeline 1 is provided with two piston rings 15, and piston rings 15 set up respectively in the upside and the downside of switch door 8 place, and piston rings 15 are close to switch door 8, and piston rings 15 are used for the isolation liquid. The second sample suction hole 10 is provided with a filter screen for filtering impurities in the liquid food.
The foregoing embodiments are merely illustrative of the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and to implement the same according to the present invention, not to limit the scope of the present invention. All changes and modifications that come within the meaning and range of equivalency of the invention are to be embraced within their scope.
Claims (10)
1. A layered sampling device for food detection for performing sample extraction on a liquid food product, comprising: the outer pipeline, the inner pipeline, connecting cap and first case that holds, the outer pipeline set up in the inner pipeline outside, outer pipeline top and the inner pipeline top is connected respectively the connecting cap lower extreme, the outer pipeline bottom is connected first case that holds, the inner pipeline bottom contact first case that holds, the outer pipeline includes a plurality of first sample suction holes, a plurality of third sample suction holes, a plurality of first sample suction pipes and a plurality of switch door, first sample suction holes distribute in the lateral wall of outer pipeline, first sample suction pipe is connected first sample suction holes with first case that holds, the switch door layering set up in the lateral wall of outer pipeline, the third sample suction holes set up in switch door lateral surface, the inner pipeline include a plurality of flutings, second sample suction holes, a plurality of expansion plate and a plurality of second hold the case, the fluting for the position one-to-one of switch position of outer pipeline corresponds, the fluting big and small sample suction holes with the second sample suction holes sets up in the second sample container, the second sample suction holes sets up in the second sample container is opened to the second sample container.
2. A food testing layered sampling device according to claim 1, wherein: the first sample suction hole and the third sample suction hole are opened in a downward inclined mode, the first sample suction pipe is divided into a front section part and a rear section part, the front section part of the first sample suction pipe and the rear section part of the first sample suction pipe are in a tower-tip shape, and the front section part of the first sample suction pipe and the rear section part of the first sample suction pipe are opposite in inclination direction.
3. A food testing layered sampling device according to claim 1, wherein: the outer pipeline still includes a plurality of holding tanks, the switch door set up in the holding tank, the switch door is the flexible door, the inside a plurality of third sample absorbing pipeline that sets up of switch door, third sample absorbing pipeline interconnect.
4. A food testing layered sampling device according to claim 1, wherein: the connecting cap bottom is offered the cylinder type recess, the inside wall of cylinder type recess is provided with the internal thread, the outer tube outside sets up the external screw thread, the outer tube with the connecting cap passes through the internal thread with external screw thread threaded connection.
5. The layered sampling apparatus for food detection of claim 4, wherein: the inner pipeline is fixed at the top of the cylindrical groove.
6. A food testing layered sampling device according to claim 1, wherein: the inside wall of outer pipeline is provided with two piston rings, the piston ring set up respectively in the upside and the downside of switch door place position, the piston ring is close to the switch door, the piston ring is used for the isolated liquid.
7. A food testing layered sampling device according to claim 1, wherein: the second sample suction hole is provided with a filter screen, and the filter screen is used for filtering impurities in liquid food.
8. A food testing layered sampling device according to claim 1, wherein: the junction of second inhale appearance pipeline with the second holds the case and is provided with the electronic valve, the electronic valve is used for controlling the open and close state of second holds the case.
9. The layered sampling apparatus for food detection of claim 8, wherein: the sample collection device comprises a first sample collection device, a second sample collection device, a switch door and an electronic valve, and is characterized by further comprising a processing device, wherein the processing device is connected with the first sample collection device, the second sample collection device, the switch door and the electronic valve and is used for controlling the first sample collection device, the second sample collection device, the switch door and the electronic valve to be opened and closed.
10. The layered sampling apparatus for food detection of claim 9, wherein: the connecting cap is provided with a plurality of control buttons, and the control buttons are used for giving control instructions to the processing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010706943.1A CN111947984B (en) | 2020-07-21 | 2020-07-21 | Layered sampling device for food detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010706943.1A CN111947984B (en) | 2020-07-21 | 2020-07-21 | Layered sampling device for food detection |
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| Publication Number | Publication Date |
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| CN111947984A CN111947984A (en) | 2020-11-17 |
| CN111947984B true CN111947984B (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010706943.1A Active CN111947984B (en) | 2020-07-21 | 2020-07-21 | Layered sampling device for food detection |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1472545A (en) * | 1973-11-03 | 1977-05-04 | Jenkins R | Sampling devices |
| CN109187097A (en) * | 2018-09-30 | 2019-01-11 | 合肥维奥科技有限公司 | A kind of portable fluid food inspection sampler |
| CN208505691U (en) * | 2018-06-12 | 2019-02-15 | 齐芬(上海)标准技术服务有限公司 | A kind of sampler for food safety detection |
| CN209132044U (en) * | 2018-11-12 | 2019-07-19 | 绥化学院 | A kind of sampler of food inspection |
| CN110220748A (en) * | 2018-03-01 | 2019-09-10 | 山东新泰华高科食品检测有限公司 | Sampler is used in a kind of detection of liquid food |
| CN209945791U (en) * | 2019-11-07 | 2020-01-14 | 刘敏 | Sampling device of atomic fluorescence spectrophotometer |
-
2020
- 2020-07-21 CN CN202010706943.1A patent/CN111947984B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1472545A (en) * | 1973-11-03 | 1977-05-04 | Jenkins R | Sampling devices |
| CN110220748A (en) * | 2018-03-01 | 2019-09-10 | 山东新泰华高科食品检测有限公司 | Sampler is used in a kind of detection of liquid food |
| CN208505691U (en) * | 2018-06-12 | 2019-02-15 | 齐芬(上海)标准技术服务有限公司 | A kind of sampler for food safety detection |
| CN109187097A (en) * | 2018-09-30 | 2019-01-11 | 合肥维奥科技有限公司 | A kind of portable fluid food inspection sampler |
| CN209132044U (en) * | 2018-11-12 | 2019-07-19 | 绥化学院 | A kind of sampler of food inspection |
| CN209945791U (en) * | 2019-11-07 | 2020-01-14 | 刘敏 | Sampling device of atomic fluorescence spectrophotometer |
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| CN111947984A (en) | 2020-11-17 |
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