CN107941560B - Food detection and extraction device with sealing performance - Google Patents
Food detection and extraction device with sealing performance Download PDFInfo
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- CN107941560B CN107941560B CN201710967723.2A CN201710967723A CN107941560B CN 107941560 B CN107941560 B CN 107941560B CN 201710967723 A CN201710967723 A CN 201710967723A CN 107941560 B CN107941560 B CN 107941560B
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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
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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
- G01N2001/1418—Depression, aspiration
- G01N2001/1427—Positive displacement, piston, peristaltic
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- Hydrology & Water Resources (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
The invention discloses a food detection and extraction device with sealing performance, which comprises a pushing disc, an extraction cavity, a pushing rod, a piston and a liquid suction head, wherein the pushing disc is arranged on the pushing disc; a groove is formed in the outer side of the extraction cavity, a piston is connected in the extraction cavity in a sliding mode, the upper end of the piston is fixedly connected with a push rod, and a push disc is installed at the upper end of the push rod; the push rod is connected with a connecting rod in a sliding manner; the lower end of the piston is fixedly connected with a cylindrical barrel, and the lower end of the connecting rod is fixedly connected with a spiral rod; the side wall of the cylindrical barrel is rotatably connected with a sleeve; the lower end of the extraction cavity is provided with a liquid guide cavity, the liquid guide cavity is connected with a liquid suction head through a threaded rod in a threaded manner, the lower end of the threaded rod is fixedly connected with the liquid suction head, the upper end of the threaded rod is fixedly connected with a ring, and the ring is rotatably connected in an annular chute A arranged in the liquid guide cavity; and a plurality of liquid inlet pipes are arranged on the inner wall of the liquid guide cavity. The invention has simple structure, can prevent the liquid taking sediment from influencing the detection effect while the detection liquid is in a closed environment, and improves the detection accuracy.
Description
Technical Field
The invention relates to an extraction device, in particular to a food detection extraction device with sealing performance.
Background
With the continuous improvement of living standard of people, the demand on diet is also getting bigger and bigger, the abundant food types make people's life more comfortable, however in the process of food type increase, the food safety problem also comes along, food safety means that food is nontoxic and harmless, accord with the nutritional requirement that should have, do not cause any acute, subacute or chronic harm to human health, according to the food safety definition, food safety is "the public health problem that poisonous and harmful substance in food influences human health", therefore need to carry out sampling detection work to food. The sample to liquid food is comparatively inconvenient, and does not have sealed function, leads to the extract to contact with the air easily, gets into debris and influences the testing result, need carry out a lot of after the sample and measure, need guarantee that the extract does not take place to deposit, and every extract concentration is the same, and the homogeneous mixing degree of extract can't be ensured to general extraction element.
Disclosure of Invention
The invention aims to provide a food detection and extraction device with sealing performance, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a food detection and extraction device with sealing performance comprises a pushing disc, an extraction cavity, a pushing rod, a piston and a liquid suction head; a groove is formed in the outer side of the extraction cavity, a piston is connected in the extraction cavity in a sliding mode, the upper end of the piston is fixedly connected with a push rod, and a push disc is installed at the upper end of the push rod; the push rod is connected with a connecting rod in a sliding manner, the upper end of the connecting rod penetrates through the pushing disc and is fixedly connected with the pressing head, and the left end and the right end of the pressing head are fixedly connected with connecting blocks; the lower end of the piston is fixedly connected with a cylindrical barrel, the lower end of the connecting rod is fixedly connected with a screw rod, the screw rod penetrates through the piston and extends into the cylindrical barrel, the lower end of the screw rod is provided with a moving block, the moving block is connected with the cylindrical barrel in a sliding mode, and the moving block is connected with the bottom of the cylindrical barrel through a second spring; the side wall of the cylindrical barrel is rotatably connected with a sleeve, and a thread is arranged in the sleeve; the lower end of the extraction cavity is provided with a liquid guide cavity, the liquid guide cavity is connected with a liquid suction head through a threaded rod in a threaded manner, the lower end of the threaded rod is fixedly connected with the liquid suction head, the upper end of the threaded rod is fixedly connected with a ring, and the ring is rotatably connected in an annular chute A arranged in the liquid guide cavity; the upper end of the circular ring is symmetrically provided with T-shaped sliding blocks, the T-shaped sliding blocks are connected in an annular sliding groove B in a sliding manner, the annular sliding groove B is arranged at the lower end of the cylindrical block, and the cylindrical block is connected on the inner wall of the liquid guide cavity in a sliding manner; the upper end of the cylindrical block is connected with the baffle through a first spring; and a plurality of liquid inlet pipes are arranged on the inner wall of the liquid guide cavity.
As a further scheme of the invention: the push rod is provided with a limiting block.
As a still further scheme of the invention: the push rod is of a hollow structure.
As a still further scheme of the invention: the sleeve is symmetrically connected with stirring rods.
As a still further scheme of the invention: the threaded rod is of a hollow structure, and the upper half part of the liquid suction head is sleeved with a rubber pad.
As a still further scheme of the invention: the liquid inlet pipe is L-shaped, the lower port of the liquid inlet pipe is communicated with the inner cavity of the liquid guide cavity, and the upper port of the liquid inlet pipe is communicated with the extraction cavity.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the opening and closing of the liquid inlet pipe can be realized by the vertical movement of the arranged cylindrical block, the liquid inlet pipe is in a closed state after extraction is finished, and the detection liquid in the extraction cavity is in a sealed environment, so that the detection liquid cannot enter other impurities, the detection accuracy is increased, meanwhile, the detection liquid cannot be scattered due to the fact that the detection liquid touches the push disc, and the stirring rod arranged in the extraction cavity can stir the detection liquid, so that the detection effect is prevented from being influenced by the precipitation of the extracting solution. In conclusion, the invention has simple structure, can prevent the liquid taking sediment from influencing the detection effect while the detection liquid is in a closed environment, and improves the detection accuracy.
Drawings
Fig. 1 is a schematic structural diagram of a food detection and extraction device with sealing performance.
Fig. 2 is a schematic diagram of the extraction state of the food detection and extraction device with sealing performance.
Fig. 3 is a sectional view of a push rod in the food detecting and extracting device with sealing performance.
Fig. 4 is an enlarged view of a structure at a position in the food detection and extraction device with sealing performance.
Fig. 5 is an enlarged view of the structure at B in the food detection and extraction device with sealing performance.
Fig. 6 is a plan view of a push plate in the food detection and extraction device having sealing performance.
In the figure: 1-pushing disc, 2-extracting cavity, 3-pushing rod, 4-groove, 5-piston, 6-rubber pad, 7-liquid suction head, 8-baffle, 9-first spring, 10-liquid inlet pipe, 11-annular chute A, 12-threaded rod, 13-cylindrical block, 14-annular chute B, 15-T type slide block, 16-circular ring, 17-pressing head, 18-connecting rod, 19-spiral rod, 20-cylindrical barrel, 21-stirring rod, 22-sleeve barrel, 23-moving block, 24-second spring, 25-limiting block, 26-connecting block and 27-liquid guide cavity.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a food detection and extraction device with sealing performance includes a push plate 1, an extraction cavity 2, a push rod 3, a piston 5 and a liquid suction head 7; the device is characterized in that a groove 4 is formed in the outer side of the extraction cavity 2, the groove 4 facilitates taking of the device, a piston 5 is connected in the extraction cavity 2 in a sliding mode, the upper end of the piston 5 is fixedly connected with a push rod 3, a push disc 1 is installed at the upper end of the push rod 3, the push disc 1 is pulled, the piston 5 is driven to move upwards through the push rod 3, a user can conveniently pull the push rod 3 through the push disc 1, a limiting block 25 is arranged on the push rod 3, and the limiting block 25 limits the moving depth of; the push rod 3 is of a hollow structure, the connecting rod 18 is connected in the push rod 3 in a sliding mode, the upper end of the connecting rod 18 penetrates through the push disc 1 and is fixedly connected with the pressing head 17, the left end and the right end of the pressing head 17 are fixedly connected with the connecting blocks 26, the connecting blocks 26 play a role of limiting left and right, the connecting rod 18 is prevented from rotating reversely and positively when moving downwards, and therefore the connecting rod 18 is always kept to move upwards and downwards; the lower end of the piston 5 is fixedly connected with a cylindrical barrel 20, the lower end of the connecting rod 18 is fixedly connected with a spiral rod 19, the spiral rod 19 penetrates through the piston 5 and extends into the cylindrical barrel 20, a moving block 23 is mounted at the lower end of the spiral rod 19, the moving block 23 is slidably connected with the cylindrical barrel 20, the moving block 23 can only move up and down in the cylindrical barrel 20, the moving block 23 is connected with the bottom of the cylindrical barrel 20 through a second spring 24, the moving block 23 is driven by the spiral rod 19 to move down when the connecting rod 18 moves down, when downward force on the connecting rod 18 disappears, the moving block 23 moves up under the action of the second spring 24, and the moving block 23 drives the spiral rod 19 to move up; rotate on the 20 lateral walls of cylindricality section of thick bamboo and be connected with sleeve 22, be provided with the screw thread in the sleeve 22, screw rod 19 drives sleeve 22 when reciprocating and takes place just reversing, and the last symmetric connection of sleeve 22 has stirring rod 21, and sleeve 22 drives stirring rod 21 when rotating and rotates, and stirring rod 21 stirs the detection liquid of drawing in the chamber 2, prevents to detect that liquid takes place to deposit and influences detection effect.
The lower end of the extraction cavity 2 is provided with a liquid guide cavity 27, the liquid guide cavity 27 is in threaded connection with a liquid suction head 7 through a threaded rod 12, the lower end of the threaded rod 12 is fixedly connected with the liquid suction head 7, the upper end of the threaded rod 12 is fixedly connected with a circular ring 16, the circular ring 16 is rotatably connected in an annular sliding groove A11 arranged in the liquid guide cavity 27, the threaded rod 12 is of a hollow structure, the upper half part of the liquid suction head 7 is sleeved with a rubber pad 6, and the rubber pad 6 facilitates screwing of the liquid suction head 7; the upper end of the circular ring 16 is symmetrically provided with T-shaped sliding blocks 15, the T-shaped sliding blocks 15 are connected in an annular sliding groove B14 in a sliding manner, an annular sliding groove B14 is formed in the lower end of the cylindrical block 13, the cylindrical block 13 is connected on the inner wall of the liquid guide cavity 27 in a sliding manner, and the circular ring 16 moves upwards to drive the cylindrical block 13 to move upwards through the T-shaped sliding blocks 15; the upper end of the cylindrical block 13 is connected with the baffle plate 8 through a first spring 9; the inner wall of the liquid guide cavity 27 is provided with a plurality of liquid inlet pipes 10, the liquid inlet pipes 10 are L-shaped, the lower ports of the liquid inlet pipes 10 are communicated with the inner cavity of the liquid guide cavity 27, the upper ports of the liquid inlet pipes 10 are communicated with the extraction cavity 2, and when the cylindrical block 13 is positioned at the lowest end, the lower ports of the liquid guide pipes 10 are in a closed state.
The working principle of the invention is as follows: when the food detection and extraction device with the sealing performance needs to extract detection liquid, the liquid suction head 7 is screwed through the rubber pad 6, the threaded rod 12 moves upwards relative to the liquid guide cavity 27, the threaded rod 12 pushes the circular ring 16 to move upwards, the circular ring pushes the cylindrical block 13 to move upwards through the T-shaped sliding block 15, the lower port of the liquid inlet pipe 10 is opened at the moment, the push disc 1 is pulled, the push disc 1 drives the piston 15 to move upwards through the push rod 3, negative pressure is generated in the extraction cavity 2, so that the detection liquid is sucked into the extraction cavity 2, then the liquid suction head 7 is screwed again, the cylindrical block 13 moves downwards, the lower port of the liquid inlet pipe 10 is in a closed state, the detection liquid in the extraction cavity 2 is in a sealed environment, the detection liquid cannot enter other impurities, the detection accuracy is improved, meanwhile, the detection liquid cannot be spilled due to touching of the push disc 1, the pressing head 17 is pressed before the detection liquid is poured into the detection container, according to move head 17 and drive 19 downstream of hob through connecting rod 18, drive stirring rod 21 through sleeve 22 during 19 downstream of hob and rotate, stirring rod 21 stirs the detection liquid of drawing in the chamber 2, prevents that the extract from deposiing and influencing the detection effect, draws the recess 4 that the chamber 2 set up outward and makes things convenient for the device to take.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A food detection and extraction device with sealing performance comprises a pushing disc (1), an extraction cavity (2), a pushing rod (3), a piston (5) and a liquid suction head (7); the device is characterized in that a groove (4) is formed in the outer side of the extraction cavity (2), a piston (5) is connected in the extraction cavity (2) in a sliding mode, the upper end of the piston (5) is fixedly connected with a push rod (3), and a push disc (1) is installed at the upper end of the push rod (3); a connecting rod (18) is connected in the push rod (3) in a sliding manner, the upper end of the connecting rod (18) penetrates through the pushing disc (1) and is fixedly connected with the pressing head (17), and the left end and the right end of the pressing head (17) are fixedly connected with connecting blocks (26); the lower end of the piston (5) is fixedly connected with a cylindrical barrel (20), the lower end of the connecting rod (18) is fixedly connected with a spiral rod (19), the spiral rod (19) penetrates through the piston (5) and extends into the cylindrical barrel (20), a moving block (23) is installed at the lower end of the spiral rod (19), the moving block (23) is connected with the cylindrical barrel (20) in a sliding mode, and the moving block (23) is connected with the bottom of the cylindrical barrel (20) through a second spring (24); the side wall of the cylindrical barrel (20) is rotatably connected with a sleeve (22), and threads are arranged in the sleeve (22); the lower end of the extraction cavity (2) is provided with a liquid guide cavity (27), the liquid guide cavity (27) is in threaded connection with a liquid suction head (7) through a threaded rod (12), the lower end of the threaded rod (12) is fixedly connected with the liquid suction head (7), the upper end of the threaded rod (12) is fixedly connected with a circular ring (16), and the circular ring (16) is rotatably connected in an annular sliding groove A (11) arranged in the liquid guide cavity (27); the upper end of the circular ring (16) is symmetrically provided with T-shaped sliding blocks (15), the T-shaped sliding blocks (15) are connected in an annular sliding groove B (14) in a sliding manner, the annular sliding groove B (14) is arranged at the lower end of the cylindrical block (13), and the cylindrical block (13) is connected on the inner wall of the liquid guide cavity (27) in a sliding manner; the upper end of the cylindrical block (13) is connected with the baffle (8) through a first spring (9); a plurality of liquid inlet pipes (10) are arranged on the inner wall of the liquid guide cavity (27).
2. The food detection and extraction device with sealing performance according to claim 1, wherein a limit block (25) is arranged on the push rod (3).
3. The sealable food detection and extraction device according to claim 1, wherein the push rod (3) is a hollow structure.
4. The food detection and extraction device with sealing performance according to claim 1, characterized in that stirring rods (21) are symmetrically connected to the sleeve (22).
5. The food detection and extraction device with sealing performance according to claim 1, wherein the threaded rod (12) is of a hollow structure, and the rubber pad (6) is sleeved on the upper half part of the liquid suction head (7).
6. The food detection and extraction device with sealing performance according to claim 1, wherein the liquid inlet pipe (10) is L-shaped, the lower port of the liquid inlet pipe is communicated with the inner cavity of the liquid guide cavity (27), and the upper port of the liquid inlet pipe (10) is communicated with the extraction cavity (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710967723.2A CN107941560B (en) | 2017-10-18 | 2017-10-18 | Food detection and extraction device with sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710967723.2A CN107941560B (en) | 2017-10-18 | 2017-10-18 | Food detection and extraction device with sealing performance |
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| Publication Number | Publication Date |
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| CN107941560A CN107941560A (en) | 2018-04-20 |
| CN107941560B true CN107941560B (en) | 2020-04-14 |
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| CN201710967723.2A Active CN107941560B (en) | 2017-10-18 | 2017-10-18 | Food detection and extraction device with sealing performance |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108871870B (en) * | 2018-08-07 | 2021-03-23 | 长乐智睿恒创节能科技有限责任公司 | Portable surface layer sea water sampling device |
| CN110579377A (en) * | 2019-10-16 | 2019-12-17 | 东海县裕隆医学检验实验室有限公司 | Integrative device of chemical reagent sample reaction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102004003434B4 (en) * | 2004-01-21 | 2006-06-08 | Eppendorf Ag | Pipetting device with a displacement device and a drive device detachably connected thereto |
| CN201492729U (en) * | 2009-09-27 | 2010-06-02 | 王俊丽 | Splanchnocoele hydrops continuous suction and drainage device |
| CN203053732U (en) * | 2012-10-31 | 2013-07-10 | 武汉钢铁(集团)公司 | Sampling head with cleaning function |
| CN203772580U (en) * | 2014-03-12 | 2014-08-13 | 青岛农业大学 | Agricultural soil property sampling device |
| CN206095703U (en) * | 2016-10-20 | 2017-04-12 | 中国人民解放军第三军医大学第二附属医院 | Urine straw |
| CN106525503A (en) * | 2016-12-01 | 2017-03-22 | 无锡艾科瑞思产品设计与研究有限公司 | Micropipettor for food detection |
| CN206276407U (en) * | 2016-12-23 | 2017-06-27 | 谭斯品 | It is a kind of with the steady type pipettor for taking out pressure function |
| CN206387607U (en) * | 2017-01-19 | 2017-08-08 | 中华人民共和国衡水出入境检验检疫局 | A kind of food safety detection sampler |
| CN206526827U (en) * | 2017-03-07 | 2017-09-29 | 延海秀 | A kind of clinical laboratory's anti-pollution test tube |
| CN207662663U (en) * | 2017-10-18 | 2018-07-27 | 南宁富莱欣生物科技有限公司 | A kind of food inspection extraction element with leakproofness |
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Effective date of registration: 20200316 Address after: 276000 13 / F, building C, Applied Science City, high tech Zone, Linyi City, Shandong Province Applicant after: Shandong ZOJE Testing Technology Co., Ltd Address before: 214000 building West Road, Wuxi, Wuxi, Jiangsu, 1 303, 303 Applicant before: BEOSEN (JIANGSU) FOOD SAFETY TECHNOLOGY Co.,Ltd. |
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