Solid-phase extraction device for food detection

Abstract

The utility model relates to the technical field of food detection, and discloses a solid-phase extraction device for food detection, which comprises a solid-phase extraction column and a sleeve, the sleeve is sleeved above the solid-phase extraction column, a sealing gasket is fixed at the contact position of the sleeve and the solid-phase extraction column, a lower ring plate is fixed above the solid-phase extraction column, and the lower ring plate is fixed on the sleeve. An upper annular plate is fixed to the lower portion of the sleeve, the upper annular plate is placed above the lower annular plate, inserting mechanisms are arranged between the two sides of the lower portion of the upper annular plate and the lower annular plate, a sliding hole is formed in the upper portion of the sleeve, and a rubber plug is arranged in the sleeve in a sliding mode. Food is detected through the solid-phase extraction column, when the solid-phase extraction column needs to be accelerated to be used, only the sleeve needs to be arranged above the solid-phase extraction column in a sleeving mode, the push rod can be driven by the pushing mechanism to move in the sliding hole, the rubber plug can be driven to move in the sleeve when the push rod moves, and therefore the solid-phase extraction column can be accelerated to be used. Therefore, the solid-phase extraction column can be pressurized.

Description

Technical Field

[0001] The utility model relates to the technical field of food detection, and more specifically, to a solid phase extraction device for food detection. Background Art

[0002] Solid phase extraction column is a sample pretreatment device developed from chromatography column for extraction, separation and concentration. Solid phase extraction column technology is based on liquid-solid chromatography theory, and uses selective adsorption and selective elution to enrich, separate and purify samples. It is a physical extraction process including liquid and solid phases; it can also be roughly regarded as a simple chromatography process. The inspection of food quality includes the inspection of the outer packaging, inner packaging, logo, mark and appearance of the commodity, physical and chemical indicators and other hygiene indicators of the food. The physical and chemical indicator detection is naturally inseparable from the solid phase extraction column. In order to accelerate the use of solid phase extraction column, a pressurizing device is required to pressurize it. However, there is no pressurizing device on the top of the existing extraction column. For this reason, we propose a solid phase extraction device for food testing. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a solid phase extraction device for food testing to solve the problem in the above background technology that there is no pressurizing device disposed above the prior extraction column.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a solid phase extraction device for food testing, comprising a solid phase extraction column and a sleeve, the sleeve being sleeved on the top of the solid phase extraction column, and a sealing gasket being fixed at the contact point between the sleeve and the solid phase extraction column, a lower ring plate being fixed on the top of the solid phase extraction column, an upper ring plate being fixed under the sleeve, and the upper ring plate being placed above the lower ring plate, an insertion mechanism being arranged between the lower sides of the upper ring plate and the lower ring plate, a sliding hole being opened above the sleeve, a rubber plug being slidably arranged in the sleeve, a push rod being fixed above the rubber plug, and one end of the push rod passing through the sliding hole and being connected to a pushing mechanism.

[0005] As a preferred technical solution of the utility model, the insertion mechanism includes an arc-shaped plug plate and an arc-shaped plug hole, the arc-shaped plug hole is opened on both sides of the lower ring plate, the arc-shaped plug plate is fixed on both sides below the upper ring plate, and one end of the arc-shaped plug plate passes through the arc-shaped plug hole and extends downward.

[0006] As a preferred technical solution of the utility model, an arc-shaped groove is provided on the side wall of the arc-shaped plug hole, a rubber protrusion is fixed on one side of the arc-shaped plug plate, and the rubber protrusion is inserted in the arc-shaped groove.

[0007] As a preferred technical solution of the present utility model, the pushing mechanism includes a sliding plate and an annular plate. The annular plate is fixed to one side above the sleeve. The sliding plate is fixed to one end of the push rod, and the sliding plate is slidably arranged on the annular plate. Bearings are fixed to both side walls of the annular plate. A threaded rod is connected inside one of the bearings. One end of the threaded rod passes through the sliding plate and the other bearing and is fixed with a rotating handle, and the threaded rod is threadedly connected with the sliding plate.

[0008] As a preferred technical solution of the present utility model, sliding mechanisms are arranged between both sides of the sliding plate and the annular plate. The sliding mechanism includes side sliding plates and sliding grooves. The sliding grooves are opened on both sides of the inner wall of the annular plate. The side sliding plates are fixed to both sides of the sliding plate, and the side sliding plates are slidably arranged in the sliding grooves. Grooves are opened on both sides of the side sliding plates, and balls are rotatably connected inside the grooves.

[0009] As a preferred technical solution of the present utility model, anti-slip lines are opened on the outside of the rotating handle.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] The present utility model detects food through a solid-phase extraction column. When it is necessary to accelerate the use of the solid-phase extraction column, only need to sleeved the sleeve on the upper part of the solid-phase extraction column. The pushing mechanism can drive the push rod to move in the sliding hole. The movement of the push rod can drive the rubber plug to move in the sleeve, so as to pressurize the solid-phase extraction column, and thus accelerate the use of the solid-phase extraction column. Description of the Drawings

[0012] Figure 1 is a schematic perspective view of a solid-phase extraction device for food detection according to the present utility model;

[0013] Figure 2 is a schematic front view of a solid-phase extraction device for food detection according to the present utility model;

[0014] Figure 3 is a schematic top view of a solid-phase extraction device for food detection according to the present utility model;

[0015] Figure 4 is an enlarged schematic view of part A of a solid-phase extraction device for food detection according to the present utility model.

[0016] In the figure: 1, solid phase extraction column; 2, sleeve; 3, upper ring plate; 4, lower ring plate; 5, arc-shaped insertion plate; 6, arc-shaped insertion hole; 7, gasket; 8, arc-shaped groove; 9, rubber protrusion; 10, rubber plug; 11, push rod; 12, sliding hole; 13, annular plate; 14, sliding plate; 15, bearing; 16, threaded rod; 17, turning handle; 18, sliding groove; 19, side sliding plate; 20, groove; 21, ball. Specific implementation manner

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] As Figures 1 to 4 shown, the present invention provides a solid phase extraction device for food detection, including a solid phase extraction column 1 and a sleeve 2. The sleeve 2 is sleeved above the solid phase extraction column 1, and a gasket 7 is fixed at the contact position between the sleeve 2 and the solid phase extraction column 1. The gasket 7 can increase the sealing performance between the sleeve 2 and the solid phase extraction column 1. A lower ring plate 4 is fixed above the solid phase extraction column 1, an upper ring plate 3 is fixed below the sleeve 2, and the upper ring plate 3 is placed above the lower ring plate 4. Insertion mechanisms are provided between both sides below the upper ring plate 3 and the lower ring plate 4. The sleeve 2 can be limited through the insertion mechanisms. A sliding hole 12 is opened above the sleeve 2, a rubber plug 10 is slidably arranged in the sleeve 2, a push rod 11 is fixed above the rubber plug 10, one end of the push rod 11 passes through the sliding hole 12 and is connected with a pushing mechanism. The pushing mechanism can drive the push rod 11 to move in the sliding hole 12. The movement of the push rod 11 can drive the rubber plug 10 to move in the sleeve 2, so as to perform a pressure treatment on the solid phase extraction column 1.

[0019] Among them, the insertion mechanism includes an arc-shaped insertion plate 5 and an arc-shaped insertion hole 6. The arc-shaped insertion holes 6 are opened on both sides of the lower ring plate 4, the arc-shaped insertion plates 5 are fixed on both sides below the upper ring plate 3, and one end of the arc-shaped insertion plate 5 passes through the arc-shaped insertion hole 6 and extends downward. The sleeve 2 can be horizontally limited by one end of the arc-shaped insertion plate 5 passing through the arc-shaped insertion hole 6.

[0020] Among them, an arc-shaped groove 8 is opened on the side wall of the arc-shaped insertion hole 6, a rubber protrusion 9 is fixed on one side of the arc-shaped insertion plate 5, and the rubber protrusion 9 is inserted into the arc-shaped groove 8. The arc-shaped insertion plate 5 can be limited by the rubber protrusion 9 being inserted into the arc-shaped groove 8. When it is necessary to remove the sleeve 2 from above the solid phase extraction column 1, only need to pull the sleeve 2 upward forcefully to pull the rubber protrusion 9 out of the arc-shaped groove 8 and then pull the arc-shaped insertion plate 5 out of the arc-shaped insertion hole 6.

[0021] Among them, the driving mechanism includes a slide plate 14 and an annular plate 13. The annular plate 13 is fixed on one side above the sleeve 2. The slide plate 14 is fixed at one end of the push rod 11, and the slide plate 14 is slidably arranged on the annular plate 13. Bearings 15 are fixed on both side walls of the annular plate 13. A threaded rod 16 is connected inside one of the bearings 15. One end of the threaded rod 16 passes through the slide plate 14 and the other bearing 15 and is fixed with a turning handle 17. Anti-slip lines are provided on the outer side of the turning handle 17, and the threaded rod 16 is threadedly connected with the slide plate 14. By rotating the turning handle 17, the threaded rod 16 can be driven to rotate. When the threaded rod 16 rotates, the slide plate 14 can be driven to slide inside the annular plate 13. When the slide plate 14 moves, the push rod 11 can be driven to move. By rotating the turning handle 17, the push rod 11 is moved to prevent the push rod 11 from being pushed too fast, resulting in excessive pressure inside the solid phase extraction column 1 and causing damage.

[0022] Among them, sliding mechanisms are arranged between both sides of the slide plate 14 and the annular plate 13. The sliding mechanism includes side slide plates 19 and sliding grooves 18. The sliding grooves 18 are opened on both sides of the inner wall of the annular plate 13. The side slide plates 19 are fixed on both sides of the slide plate 14, and the side slide plates 19 are slidably arranged inside the sliding grooves 18. Grooves 20 are opened on both sides of the side slide plates 19, and balls 21 are rotatably connected inside the grooves 20. Through the sliding mechanism, the slide plate 14 can slide more smoothly inside the annular plate 13.

[0023] The working principle and usage process of the present utility model: The food is detected through the solid phase extraction column 1. When it is necessary to accelerate the use of the solid phase extraction column 1, only the sleeve 2 needs to be sleeved above the solid phase extraction column 1. The driving mechanism can drive the push rod 11 to move inside the sliding hole 12. When the push rod 11 moves, the rubber plug 10 can be driven to move inside the sleeve 2, so as to pressurize the solid phase extraction column 1, and thus the use of the solid phase extraction column 1 can be accelerated.

[0024] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A solid phase extraction device for food testing, comprising a solid phase extraction column (1) and a sleeve (2), characterized in that: The sleeve (2) is sleeved on the top of the solid phase extraction column (1), and a sealing gasket (7) is fixed at the contact point between the sleeve (2) and the solid phase extraction column (1); a lower ring plate (4) is fixed on the top of the solid phase extraction column (1); an upper ring plate (3) is fixed below the sleeve (2), and the upper ring plate (3) is placed above the lower ring plate (4); insertion mechanisms are provided between the lower sides of the upper ring plate (3) and the lower ring plate (4); a sliding hole (12) is opened above the sleeve (2); a rubber plug (10) is slidably provided in the sleeve (2); a push rod (11) is fixed above the rubber plug (10); one end of the push rod (11) passes through the sliding hole (12) and is connected to a pushing mechanism.

2. A solid phase extraction device for food detection according to claim 1, characterized in that: The insertion mechanism comprises an arc-shaped plug plate (5) and an arc-shaped plug hole (6), wherein the arc-shaped plug hole (6) is provided on both sides of the lower ring plate (4), the arc-shaped plug plate (5) is fixed on both sides below the upper ring plate (3), and one end of the arc-shaped plug plate (5) passes through the arc-shaped plug hole (6) and extends downward.

3. A solid phase extraction device for food detection according to claim 2, characterized in that: The side wall of the arc-shaped insertion hole (6) is provided with an arc-shaped groove (8), and a rubber protrusion (9) is fixed on one side of the arc-shaped plug plate (5), and the rubber protrusion (9) is inserted into the arc-shaped groove (8).

4. A solid phase extraction device for food detection according to claim 1, characterized in that: The pushing mechanism comprises a slide plate (14) and an annular plate (13), wherein the annular plate (13) is fixed on one side above the sleeve (2), the slide plate (14) is fixed on one end of the push rod (11), and the slide plate (14) is slidably arranged on the annular plate (13), and bearings (15) are fixed on both side walls of the annular plate (13), one of the bearings (15) is connected with a threaded rod (16), one end of the threaded rod (16) passes through the slide plate (14) and the other bearing (15) and is fixed with a turning handle (17), and the threaded rod (16) and the slide plate (14) are connected by threads.

5. A solid phase extraction device for food detection according to claim 4, characterized in that: A sliding mechanism is provided between both sides of the slide plate (14) and the annular plate (13), and the sliding mechanism comprises a side slide plate (19) and a slide groove (18). The slide groove (18) is provided on both sides of the inner wall of the annular plate (13). The side slide plate (19) is fixed on both sides of the slide plate (14), and the side slide plate (19) is slidably provided in the slide groove (18). Grooves (20) are provided on both sides of the side slide plate (19), and balls (21) are rotatably connected in the grooves (20).

6. A solid phase extraction device for food testing according to claim 4, characterized in that: The rotating handle (17) is provided with anti-skid patterns on the outside.

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