CN117074091A - Random blind detection sampling device for food detection - Google Patents
Random blind detection sampling device for food detection Download PDFInfo
- Publication number
- CN117074091A CN117074091A CN202311331229.9A CN202311331229A CN117074091A CN 117074091 A CN117074091 A CN 117074091A CN 202311331229 A CN202311331229 A CN 202311331229A CN 117074091 A CN117074091 A CN 117074091A
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- sealing
- sampling
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- 238000005070 sampling Methods 0.000 title claims abstract description 106
- 238000001514 detection method Methods 0.000 title claims abstract description 31
- 235000013305 food Nutrition 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 95
- 235000021056 liquid food Nutrition 0.000 claims abstract description 60
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 230000000712 assembly Effects 0.000 claims description 13
- 238000000429 assembly Methods 0.000 claims description 13
- 230000000694 effects Effects 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 235000013334 alcoholic beverage Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008157 edible vegetable oil Substances 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 235000012907 honey Nutrition 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000033458 reproduction Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Classifications
-
- 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
Abstract
The application provides a random blind detection sampling device for food detection, which belongs to the technical field of food detection and comprises a sampling tube, a sealing component, a first elastic component, a second limiting component and a pressure-bearing component, wherein an extension side tube is arranged on the side wall of the sampling tube in a communicated manner, a liquid inlet hole is formed in the position above the extension side tube, the sealing component is movably arranged in the sampling tube and is used for sealing the liquid inlet hole, one end of the first elastic component is connected with the inner wall of the sampling tube, the other end of the first elastic component is connected with the sealing component and is used for providing elastic support for the sealing component, and the pressure-bearing component is movably arranged in the extension side tube. Compared with the prior art, the embodiment of the application can realize automatic sampling of liquid food with a preset depth by mutually matching the sealing component, the first elastic component, the second limiting component and the pressure-bearing component, and has the advantages of high sampling efficiency and good sampling effect.
Description
Technical Field
The application belongs to the technical field of food detection, and particularly relates to a random blind detection sampling device for food detection.
Background
The liquid food is a flowable food in liquid state, and can provide specific nutrition for human survival, growth and reproduction. Liquid foods are of various kinds, including dairy products, edible oils, alcoholic beverages, honey, fruit and vegetable drinks, and the like.
The sampling device is needed to be used for sampling operation during liquid food detection, at present, the sampling device structure is relatively simple, most of the sampling device structure comprises a sampling needle tube and a piston mechanism arranged in the sampling needle tube, the sampling needle tube is inserted into the liquid food during deep liquid food sampling, then the piston mechanism is pulled, so that the liquid food is extracted from one end of the sampling needle tube to be stored in the sampling needle tube, and finally the sampling needle tube is taken out of the liquid food.
Disclosure of Invention
Aiming at the defects of the prior art, the embodiment of the application aims to provide a random blind detection sampling device for food detection.
In order to solve the technical problems, the application provides the following technical scheme:
a random blind detection sampling device for food detection comprises a sampling tube, a sealing component, a first elastic component, a second limiting component and a pressure bearing component,
the side wall of the sampling tube is communicated with an extension side tube,
the side wall of the sampling tube is positioned above the extension side tube and provided with a liquid inlet hole,
the sealing component is movably arranged inside the sampling tube and is used for sealing the liquid inlet hole,
one end of the first elastic piece is connected with the inner wall of the sampling tube, the other end of the first elastic piece is connected with the sealing component and is used for providing elastic support for the sealing component,
the pressure-bearing component is movably arranged inside the extension side pipe,
the second limiting assembly is mounted on the side wall of the extension side pipe and used for applying friction resistance to the pressure-bearing assembly so as to limit the pressure-bearing assembly to one end, away from the sampling pipe, of the extension side pipe.
As a further improvement of the application: the seal assembly includes a first seal block and a second seal block,
the first sealing blocks and the second sealing blocks are vertically distributed at intervals, the first sealing blocks are connected with the second sealing blocks through connecting rods, an annular space for containing liquid food samples is formed between the first sealing blocks and the second sealing blocks, one end of the first elastic piece is connected with the inner wall of the sampling tube, and the other end of the first elastic piece is connected with the second sealing blocks.
As a further improvement of the application: one end of the extension side tube far away from the sampling tube is provided with a through hole,
the pressure bearing assembly includes a piston block,
the second limiting component comprises a second end block, a third elastic piece, a top supporting rod and a second cylinder,
the second cylinder is fixedly arranged on the outer wall of the extension side pipe, the second end block is fixedly arranged at one end of the top supporting rod, which is far away from the second end block, penetrates through the second cylinder and extends into the extension side pipe, one end of the third elastic piece is connected with the second end block, the other end of the third elastic piece is connected with the second cylinder and is used for providing elastic tension for the second end block, so that the top supporting rod is supported to the side wall of the piston block, and the piston block is limited at one end, which is far away from the sampling pipe, of the extension side pipe.
As a further improvement of the application: the sampling tube is internally positioned above the first sealing block and is also fixedly provided with an annular stop block.
As a still further improvement of the application: the side wall of the extension side pipe is further provided with a first limiting assembly, and when the first sealing block moves upwards and is abutted to the lower portion of the annular stop block, the first limiting assembly is used for limiting the piston block.
As a still further improvement of the application: the first limit component comprises a first end block, a second elastic piece, a limit rod and a first column casing,
the utility model discloses a telescopic handle, including extension side pipe, first barrel, stop lever, second elastic component, stop lever, first end piece, stop lever, second elastic component, first end piece is fixed to be set up on the extension side pipe outer wall, first end piece is fixed to be set up stop lever one end, the stop lever is kept away from the one end of first end piece runs through first barrel and extends to inside the extension side pipe, the stop lever is located the inside one end of extension side pipe is equipped with the inclined plane, second elastic component one end with first end piece links to each other, the other end with first barrel links to each other, is used for right first end piece provides elastic tension.
As a still further improvement of the application: one side of the piston block is also fixedly provided with a pull rod, and one end of the pull rod, which is far away from the piston block, extends from the through hole to the outside of the extension side pipe.
As a still further improvement of the application: the second limiting components are provided with a plurality of groups, the second limiting components are distributed at intervals in a ring shape along the outer wall of the extension side pipe,
the elastic forces of the third elastic pieces corresponding to the second limiting assemblies are different from each other, external threads are arranged on the outer wall of the top supporting rod corresponding to each group of the second limiting assemblies, and internal threads are arranged on the inner wall of the second cylinder corresponding to each group of the second limiting assemblies.
Compared with the prior art, the application has the beneficial effects that:
in the embodiment of the application, the second limiting component limits the pressure-bearing component at one end, far away from the sampling tube, of the inside of the extension side tube at the initial stage, so that the first elastic component is in a compressed state, and then the sealing component is limited at a certain position in the sampling tube to seal the liquid inlet, when deep liquid food needs to be sampled, the sampling tube can be stretched into the liquid food, in the process, the sampling tube can drive the extension side tube to be stretched into the liquid food together, the extension side tube is driven by the sampling tube to gradually move downwards along the inside of the liquid food, the pressure of the pressure-bearing component is gradually increased by the liquid food, after the liquid inlet reaches a preset depth in the liquid food, the pressure of the liquid food acting on the pressure-bearing component is larger than the friction force of the second limiting component on the pressure-bearing component, and then the pressure-bearing component slides along the inside of the extension side tube to the direction of the sampling tube, and the first elastic component can be pushed to slide along the inside of the sampling tube, so that the sealing state of the liquid food in the inside of the liquid inlet is relieved, and the liquid food in the preset depth position can be introduced into the inside of the sampling tube from the liquid food.
Drawings
FIG. 1 is a schematic diagram of a random blind test sampling device for food detection;
FIG. 2 is a schematic diagram II of a random blind detection sampling device for food detection;
FIG. 3 is an enlarged schematic view of area A of FIG. 1;
FIG. 4 is an enlarged schematic view of area B of FIG. 1;
in the figure: 10. a sampling tube; 101. an annular stop; 102. a liquid inlet hole; 103. an extension side pipe; 104. a through hole; 20. a seal assembly; 201. a first sealing block; 202. a connecting rod; 203. an annular space; 204. a second sealing block; 30. a first elastic member; 40. a first limit assembly; 401. a first end block; 402. a second elastic member; 403. a limit rod; 404. a first column casing; 405. an inclined plane; 50. the second limiting component; 501. a second end block; 502. a third elastic member; 503. a top brace rod; 504. a second cylinder; 505. an internal thread; 506. an external thread; 60. a pressure bearing assembly; 601. a piston block; 602. and (5) a pull rod.
Detailed Description
The technical scheme of the application is further described in detail below with reference to the specific embodiments.
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.
Referring to fig. 1, the embodiment provides a random blind detection sampling device for food detection, which comprises a sampling tube 10, a sealing assembly 20, a first elastic member 30, a second limiting assembly 50 and a pressure-bearing assembly 60, wherein the side wall of the sampling tube 10 is provided with an extension side tube 103 in a communicating manner, a liquid inlet 102 is formed in the position above the extension side tube 103 on the side wall of the sampling tube 10, the sealing assembly 20 is movably arranged inside the sampling tube 10 and is used for sealing the liquid inlet 102, one end of the first elastic member 30 is connected with the inner wall of the sampling tube 10, the other end of the first elastic member is connected with the sealing assembly 20 and is used for providing elastic support for the sealing assembly 20, the pressure-bearing assembly 60 is movably arranged inside the extension side tube 103, the second limiting assembly 50 is arranged on the side wall of the extension side tube 103 and is used for applying friction resistance to the pressure-bearing assembly 60 so as to limit the pressure-bearing assembly 60 inside the extension side tube 103 at the end far away from the sampling tube 10.
Initially, the second limiting component 50 limits the pressure-bearing component 60 at one end of the inside of the extension side tube 103 far away from the sampling tube 10, so that the first elastic component 30 is in a compressed state, and then limits the sealing component 20 at a certain position of the inside of the sampling tube 10, so as to seal the liquid inlet 102, when the deep liquid food needs to be sampled, the sampling tube 10 can be stretched into the liquid food, in this process, the sampling tube 10 can drive the extension side tube 103 to be stretched into the liquid food together, along with the progressive downward movement of the sampling tube 10 driving the extension side tube 103 along the inside of the liquid food, the pressure of the pressure-bearing component 60 by the liquid food is gradually increased, when the liquid inlet 102 reaches a predetermined depth in the liquid food, the pressure of the liquid food acting on the pressure-bearing component 60 is greater than the friction force of the second limiting component 50 on the pressure-bearing component 60, so that the pressure-bearing component 60 slides along the inside of the extension side tube 103, and the first elastic component 30 can push the sealing component 20 along the inside of the sampling tube 10, thereby releasing the sealing state of the liquid food for the deep liquid food, and the liquid food at the predetermined depth can automatically enter the liquid food from the liquid inlet 102 into the sampling tube 10, thereby completing the sampling of the predetermined depth.
Referring to fig. 1, in one embodiment, the sealing assembly 20 includes a first sealing block 201 and a second sealing block 204, the first sealing block 201 and the second sealing block 204 are vertically spaced apart, the first sealing block 201 and the second sealing block 204 are connected by a connecting rod 202, an annular space 203 for containing a liquid food sample is formed between the first sealing block 201 and the second sealing block 204, and one end of the first elastic member 30 is connected to the inner wall of the sampling tube 10, and the other end is connected to the second sealing block 204.
Initially, the second limiting component 50 limits the pressure-bearing component 60 at one end, far away from the sampling tube 10, inside the extension side tube 103, so that the first elastic piece 30 is in a compressed state, at this time, the first sealing block 201 is located at a certain position inside the sampling tube 10, so as to seal the liquid inlet 102, after the liquid inlet 102 reaches a predetermined depth inside the liquid food, the pressure of the liquid food acting on the pressure-bearing component 60 is greater than the friction force of the second limiting component 50 on the pressure-bearing component 60, and further, the pressure-bearing component 60 slides along the inside of the extension side tube 103 towards the sampling tube 10, the first elastic piece 30 pushes the second sealing block 204 and the first sealing block 201 upwards, the sealing state of the liquid inlet 102 can be released when the first sealing block 201 moves upwards, so that the liquid food with a predetermined depth outside can enter an annular space 203 between the first sealing block 201 and the second sealing block 204, when the pressure-bearing component 60 slides to a certain position inside the extension side tube 103, the second sealing block 204 moves up to the inner side of the liquid inlet 102, the liquid food is prevented from leaking from the annular space 203, and the liquid food is prevented from leaking from the predetermined position inside the annular space 102.
Referring to fig. 1 and 3, in one embodiment, the end of the extension side tube 103 away from the sampling tube 10 is provided with a through hole 104, the pressure-bearing component 60 includes a piston block 601, the second limiting component 50 includes a second end block 501, a third elastic member 502, a top supporting rod 503 and a second cylinder 504, the second cylinder 504 is fixedly disposed on the outer wall of the extension side tube 103, the second end block 501 is fixedly disposed at one end of the top supporting rod 503, one end of the top supporting rod 503 away from the second end block 501 penetrates through the second cylinder 504 and extends into the extension side tube 103, one end of the third elastic member 502 is connected with the second end block 501, and the other end is connected with the second cylinder 504, so as to provide elastic tension to the second end block 501, so that the top supporting rod 503 is propped against the side wall of the piston block 601, so as to limit the piston block 601 at one end of the extension side tube 103 away from the sampling tube 10.
Initially, the piston block 601 is located at one end of the extension side tube 103 away from the sampling tube 10, at this time, elastic tension is applied to the second end block 501 by the third elastic member 502, so that one end of the top supporting rod 503 is propped against the side wall of the piston block 601, and friction force applied to the piston block 601 by the top supporting rod 503 is used to define the piston block 601, so that the first sealing block 201 stays at a certain position inside the sampling tube 10 to seal the liquid inlet hole 102, and meanwhile, the first elastic member 30 is in a compressed state; after the liquid inlet 102 moves to a predetermined depth in the liquid food, the pressure of the liquid food applied to the piston block 601 by the through hole 104 is greater than the friction force applied to the piston block 601 by the top brace 503, so as to push the piston block 601 away from one end of the top brace 503, when the piston block 601 is pushed away from one end of the top brace 503, the piston block 601 is not limited by the top brace 503, the first elastic member 30 can push the second sealing block 204 and the first sealing block 201 upwards along the inside of the sampling tube 10, the sealing of the liquid food with the predetermined depth to the liquid inlet 102 can be released when the first sealing block 201 upwards moves, the liquid food with the predetermined depth can enter the annular space 203 between the first sealing block 201 and the second sealing block 204 through the liquid inlet 102, so that sampling of the liquid food with the predetermined depth can be realized, and when the second sealing block 204 upwards moves, the inside of the extension side tube 103 can be pumped, so that the piston block 601 is driven to approach the sampling tube 10.
Referring to fig. 1 and 2, in one embodiment, the ring-shaped stop 101 is further fixedly disposed in the sampling tube 10 above the first sealing block 201.
Along with the upward movement of the first sealing block 201, when the first sealing block 201 abuts against the lower part of the annular stop block 101, the first sealing block 201 and the second sealing block 204 stop moving upward, and at this time, the second sealing block 204 is positioned at the inner side of the liquid inlet hole 102 to seal the liquid inlet hole 102, so as to prevent the liquid food sample in the annular space 203 from leaking, and simultaneously prevent the liquid food at the external non-preset depth position from entering the annular space 203 from the liquid inlet hole 102, so as to prevent the cross contamination of samples with different depths; when the first seal block 201 abuts against the lower portion of the annular stopper 101, the first seal block 201 and the second seal block 204 cannot move upward, so that the second seal block 204 cannot pump air out of the extension side tube 103, and the piston block 601 stops moving at a position close to the sampling tube 10.
Referring to fig. 1, in one embodiment, the side wall of the extension side pipe 103 is further provided with a first limiting component 40, and when the first sealing block 201 moves up and abuts against the lower portion of the annular stop 101, the first limiting component 40 is used for limiting the piston block 601.
Referring to fig. 4, in one embodiment, the first limiting assembly 40 includes a first end block 401, a second elastic member 402, a limiting rod 403 and a first post 404, where the first post 404 is fixedly disposed on the outer wall of the extension side tube 103, the first end block 401 is fixedly disposed at one end of the limiting rod 403, which is far away from the first end block 401, penetrates through the first post 404 and extends into the extension side tube 103, one end of the limiting rod 403, which is located inside the extension side tube 103, is provided with an inclined plane 405, one end of the second elastic member 402 is connected with the first end block 401, and the other end is connected with the first post 404, so as to provide elastic tension to the first end block 401.
When the first sealing block 201 and the second sealing block 204 move upwards, the air pumping action of the second sealing block 204 on the inside of the extension side pipe 103 can drive the piston block 601 to slide along the inside of the extension side pipe 103 towards the direction of the sampling pipe 10, the piston block 601 can act on the inclined surface 405 and push the limiting rod 403 to move towards the outside of the extension side pipe 103, when the first sealing block 201 abuts against the lower part of the annular stop block 101, the piston block 601 passes over the limiting rod 403, the second elastic piece 402 pulls the limiting rod 403 to move towards the inside of the extension side pipe 103, so that the piston block 601 acts on one side of the piston block 601 to further limit the piston block 601 to be far away from the sampling pipe 10, and after the piston block 601 is limited, the second sealing block 204 can seal the liquid inlet hole 102 stably because air between the piston block 601 and the second sealing block 204 can not be compressed.
Referring to fig. 1, in one embodiment, a pull rod 602 is further fixedly disposed on one side of the piston block 601, and an end of the pull rod 602 away from the piston block 601 extends from the through hole 104 to the outside of the extension side pipe 103.
When liquid food enters the annular space 203 between the first sealing block 201 and the second sealing block 204, the sampling tube 10 can be taken out from the liquid food, then the first end block 401 is pulled, and then the limiting rod 403 is driven to move towards the outside of the extending side tube 103, so that the limiting rod 403 is removed from one side of the piston block 601, the limitation of the piston block 601 is relieved, then the pull rod 602 is pulled, and then the piston block 601 is driven to slide along the inside of the extending side tube 103 towards the direction far away from the sampling tube 10, the piston block 601 draws air below the second sealing block 204 into the inside of the extending side tube 103, and then the second sealing block 204 and the first sealing block 201 are driven to slide downwards along the inside of the sampling tube 10, the first elastic piece 30 is compressed under stress, after the second sealing block 204 slides away from one side of the liquid inlet hole 102, a liquid food sample located in the annular space 203 can be discharged from the liquid inlet hole 102, and at the moment, workers can collect and detect the discharged liquid food sample.
Referring to fig. 1, in one embodiment, the second limiting assemblies 50 are provided with a plurality of groups, the plurality of second limiting assemblies 50 are distributed along the outer wall of the extension side pipe 103 at annular intervals, the elastic forces of the third elastic members 502 corresponding to the plurality of second limiting assemblies 50 are different from each other, the outer wall of the top brace 503 corresponding to each group of second limiting assemblies 50 is provided with an external thread 506, and the inner wall of the second cylinder 504 corresponding to each group of second limiting assemblies 50 is provided with an internal thread 505.
When the elastic forces of the third elastic members 502 corresponding to the second limit components 50 are different, the propping forces of the propping rods 503 corresponding to the second limit components 50 when acting on the side wall of the piston block 601 are different, so that the friction forces exerted by the propping rods 503 on the piston block 601 are different, when different propping rods 503 act on the side wall of the piston block 601, the piston block 601 can resist the pressure of different depth positions of liquid foods, so that when sampling liquid foods with different depths, the second limit components 50 corresponding to the target depth liquid foods can be selected, the propping rods 503 contained in the second limit components 50 are propped against the side wall of the piston block 601 under the pulling force of the corresponding third elastic members 502, the external threads 506 of the side wall of the propping rods 503 are in a separated state with the internal threads 505 of the inner wall of the second cylinder 504, and one end of the propping rods 503, which is far from the second end block 504, is limited to be not in contact with the inner side wall of the second cylinder 504 by the threads 501 of the external threads 506.
In one embodiment, the first elastic member 30, the second elastic member 402, and the third elastic member 502 may be springs, or metal elastic sheets, which are not limited herein.
In the embodiment of the application, initially, the second limiting component 50 limits the pressure-bearing component 60 at one end of the inside of the extension side tube 103 far away from the sampling tube 10, so that the first elastic component 30 is in a compressed state, and further limits the sealing component 20 at a certain position inside the sampling tube 10, so as to seal the liquid inlet 102, when deep liquid food needs to be sampled, the sampling tube 10 can be stretched into the liquid food, in this process, the sampling tube 10 can drive the extension side tube 103 to stretch into the liquid food together, along with the gradual downward movement of the extension side tube 103 along the inside of the liquid food by the sampling tube 10, the pressure of the pressure-bearing component 60 by the liquid food is gradually increased, after the liquid inlet 102 reaches a predetermined depth in the liquid food, the pressure of the liquid food acting on the pressure-bearing component 60 is greater than the friction of the second limiting component 50 on the pressure-bearing component 60, and further the pressure-bearing component 60 slides along the inside of the extension side tube 103, and the first elastic component 30 can push the sealing component 20 along the inside of the sampling tube 10, so that the sealing state of the liquid food in the liquid inlet 102 is relieved, and the food in the predetermined depth position can enter the liquid food from the inside of the sampling tube 102 to the sampling tube 10, and the sampling tube 10 can be matched with the sampling component 50, and the pressure-bearing component is better than the sampling component 60, and the pressure-bearing component can be realized by the automatic sealing component.
While the preferred embodiments of the present application have been described in detail, the present application is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present application within the knowledge of those skilled in the art.
Claims (8)
1. A random blind detection sampling device for food detection comprises a sampling tube (10), and is characterized by further comprising a sealing component (20), a first elastic component (30), a second limiting component (50) and a pressure-bearing component (60),
the side wall of the sampling tube (10) is communicated with an extension side tube (103),
a liquid inlet hole (102) is arranged on the side wall of the sampling tube (10) above the extension side tube (103),
the sealing component (20) is movably arranged in the sampling tube (10) and is used for sealing the liquid inlet hole (102),
one end of the first elastic piece (30) is connected with the inner wall of the sampling tube (10), the other end is connected with the sealing component (20) and is used for providing elastic support for the sealing component (20),
the pressure-bearing component (60) is movably arranged inside the extension side pipe (103),
the second limiting assembly (50) is mounted on the side wall of the extension side pipe (103) and used for applying friction resistance to the pressure-bearing assembly (60) so as to limit the pressure-bearing assembly (60) to the end, away from the sampling pipe (10), of the extension side pipe (103).
2. A random blind sample collection device for food product testing according to claim 1, wherein said seal assembly (20) comprises a first seal block (201) and a second seal block (204),
the first sealing blocks (201) are distributed with the second sealing blocks (204) at intervals up and down, the first sealing blocks (201) are connected with the second sealing blocks (204) through connecting rods (202), an annular space (203) for containing liquid food samples is formed between the first sealing blocks (201) and the second sealing blocks (204), one end of each first elastic piece (30) is connected with the inner wall of the sampling tube (10), and the other end of each first elastic piece is connected with the second sealing blocks (204).
3. A random blind detection sampling device for food detection according to claim 2, wherein the end of the extension side tube (103) far from the sampling tube (10) is provided with a through hole (104),
the pressure bearing assembly (60) comprises a piston block (601),
the second limiting assembly (50) comprises a second end block (501), a third elastic piece (502), a top supporting rod (503) and a second cylinder (504),
the second cylinder (504) is fixedly arranged on the outer wall of the extension side pipe (103), the second end block (501) is fixedly arranged at one end of the top supporting rod (503), one end of the top supporting rod (503) far away from the second end block (501) penetrates through the second cylinder (504) and extends to the inside of the extension side pipe (103), one end of the third elastic piece (502) is connected with the second end block (501), the other end of the third elastic piece is connected with the second cylinder (504) and is used for providing elastic tension for the second end block (501), so that the top supporting rod (503) is propped against the side wall of the piston block (601) to limit the piston block (601) to the inside of the extension side pipe (103) far away from one end of the sampling pipe (10).
4. A random blind detection sampling device for food detection according to claim 3, characterized in that the inner part of the sampling tube (10) is further fixedly provided with an annular stop block (101) at a position above the first sealing block (201).
5. A random blind test sampling device for food detection according to claim 4, wherein the side wall of the extension side tube (103) is further provided with a first limiting component (40), and the first limiting component (40) is used for limiting the piston block (601) when the first sealing block (201) moves up and abuts against the lower part of the annular stop block (101).
6. A random blind sample collection device for food testing according to claim 5, wherein said first stop assembly (40) comprises a first end block (401), a second resilient member (402), a stop bar (403) and a first barrel (404),
the utility model discloses a stopper rod, including extension side pipe (103) and first column casing (404), first column casing (404) are fixed to be set up on extension side pipe (103) outer wall, first end block (401) are fixed to be set up stopper rod (403) one end, stopper rod (403) are kept away from one end of first end block (401) runs through first column casing (404) and extends to extension side pipe (103) is inside, stopper rod (403) are located extension side pipe (103) is inside one end is equipped with inclined plane (405), second elastic component (402) one end with first end block (401) link to each other, the other end with first column casing (404) link to each other, be used for right first end block (401) provides elastic tension.
7. A random blind detection sampling device for food detection according to claim 3, characterized in that a pull rod (602) is fixedly arranged on one side of the piston block (601), and one end of the pull rod (602) away from the piston block (601) extends from the through hole (104) to the outside of the extension side pipe (103).
8. A random blind detection sampling device for food detection according to claim 3, wherein the second limiting assemblies (50) are provided with a plurality of groups, the second limiting assemblies (50) are distributed at intervals in a ring shape along the outer wall of the extension side pipe (103),
the elastic forces of the third elastic pieces (502) corresponding to the second limiting assemblies (50) are different from each other, external threads (506) are arranged on the outer wall of the top supporting rod (503) corresponding to each group of the second limiting assemblies (50), and internal threads (505) are arranged on the inner wall of the second cylinder (504) corresponding to each group of the second limiting assemblies (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311331229.9A CN117074091B (en) | 2023-10-16 | 2023-10-16 | Random blind detection sampling device for food detection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311331229.9A CN117074091B (en) | 2023-10-16 | 2023-10-16 | Random blind detection sampling device for food detection |
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| CN117074091A true CN117074091A (en) | 2023-11-17 |
| CN117074091B CN117074091B (en) | 2023-12-19 |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| SU787629A1 (en) * | 1978-04-25 | 1980-12-15 | Северо-Кавказский Государственный Научно- Исследовательский И Проектный Институт Нефтяной Промышленности | Sampler for formation tester |
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| CN115479811A (en) * | 2022-10-07 | 2022-12-16 | 芜湖中燃城市燃气发展有限公司 | Natural gas pipeline sampling device and method |
| CN219434424U (en) * | 2023-03-20 | 2023-07-28 | 安徽清心湖畔生物科技有限责任公司 | Portable food sampler |
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| CN108332986A (en) * | 2018-01-25 | 2018-07-27 | 浙江大学 | A kind of sampler and method |
| CN208847540U (en) * | 2018-09-29 | 2019-05-10 | 上海仅鑫制药设备工程有限公司 | Rotate sampling valve |
| CN210513791U (en) * | 2019-04-29 | 2020-05-12 | 徐晓 | Liquid sampling device for food detection |
| CN112798350A (en) * | 2021-01-27 | 2021-05-14 | 徐州工程学院 | Liquid food detects sampling device |
| CN113109095A (en) * | 2021-04-22 | 2021-07-13 | 印仲高 | A deep water multiple spot sampling device for sewage treatment |
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| CN219434424U (en) * | 2023-03-20 | 2023-07-28 | 安徽清心湖畔生物科技有限责任公司 | Portable food sampler |
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|---|---|
| CN117074091B (en) | 2023-12-19 |
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