Rapid suction filtration device applied to detection
By designing a fast suction filtration device for upper and lower nozzles, the existing suction filtration device occupies a large area, is inconvenient to operate, and is prone to leaking filtrate in pesticide residue detection, achieving efficient filtrate treatment and accurate experimental results.
Patent Information
- Application Number
- CN202420860953.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-24
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-24
AI Technical Summary
The existing suction filtration device has problems such as large area in the detection of pesticide residues, inconvenient for large-scale extracts to oscillate or vortex, easy to break the receiving container, easy to leak the filtrate, and inconvenient operation, resulting in low detection efficiency.
A fast suction filter device is designed, including an upper and lower mouth type bottle body, with a fixed groove at the bottom of the bottle body fixed receiving container, and a resilient card or rubber ring is used to fix the receiving container to prevent impact and leakage, and pass through the Buchner funnel and The bottle plug realizes vacuum suction and filtering, and an elastic cover is installed on the air inlet for easy operation.
Improve detection efficiency, ensure the accuracy and safety of the filtrate, reduce manual operation, and avoid crushing of the receiving container and filtrate leakage.
Smart Images
Figure CN222173252U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of chemical detection equipment, in particular to a rapid extraction and filtration device used for detection. Background Art
[0002] In the pre-treatment and extraction process of pesticide residue detection, the homogenized sample needs to be filtered. There are two traditional filter bottles:
[0003] One is a single-mouth suction bottle, which only has an air inlet, and the filtrate is directly received in the suction bottle. However, this single-mouth suction bottle occupies a large area, and it is not convenient to oscillate or vortex the extract in large quantities during the subsequent pre-treatment process. Moreover, each time a sample is filtered, the air inlet pipe needs to be removed, replaced with a new suction bottle, and then the air inlet pipe is put on the new suction bottle; furthermore, the single-mouth suction bottle is not easy to clean and is prone to cross contamination; at the same time, the receiving liquid after filtration needs to be left to stand and layer to extract the supernatant. The conical bottle has a large area, and the pipette extraction is very easy to absorb impurities in the lower layer, affecting the experimental results. Therefore, in the detection process, single-mouth filtration is time-consuming and requires a lot of manual operation, which greatly reduces the detection efficiency.
[0004] The other is an upper and lower mouth suction bottle. During the filtration process, the receiving container needs to be placed in the suction bottle. Because the receiving container and the upper and lower mouth suction bottle are made of the same glass material, a collision occurs when the receiving container is placed in the suction bottle, and the receiving container is easily broken; and because the bottom of the suction bottle is smooth, the receiving container falls to the left and right after being placed in, and the filtrate is very easy to leak; furthermore, during the filtration process, the other mouth that is not connected to the air inlet pipe needs to be blocked by hand before filtration can be performed, which is inconvenient to operate. Summary of the invention
[0005] The existing filtration devices have the problems of large floor space, inconvenience in oscillating or vortexing the extract in large quantities during the subsequent pre-treatment process, inconvenience in stratifying the filtrate and absorbing the supernatant, which affects the accuracy of the experimental results, the problem of easy breakage of the receiving container and the filtration bottle, the problem of easy leakage of the filtrate, inconvenience in operation and reduced detection efficiency. In order to overcome or alleviate one or more of the above technical problems, the purpose of the utility model is to provide a rapid filtration device for detection.
[0006] The utility model provides the following technical solutions:
[0007] A rapid filtration device for detection comprises a bottle body (10), wherein the upper end of the bottle body (10) is provided with a bottle mouth (1), the bottle mouth (1) is provided with a bottle plug (9), a Büchner funnel (8) is fixedly inserted on the bottle plug (9), the bottle body (10) is of upper and lower mouth type, an air inlet (3) is provided on the upper part of one side, and an air extraction port (5) is provided on the lower part of the other side, a receiving container clamp (2) is provided at a certain distance below the bottle plug (9) at the bottle mouth (1), and a receiving container (11) is fixed by the receiving container clamp (2); the receiving container (11) is located vertically below the Büchner funnel (8); and a fixing part for fixing the receiving container (11) is provided at the bottom of the bottle body (10).
[0008] According to some embodiments, the fixing member includes a bottom pad (6) arranged on the inner bottom surface of the bottle body (10).
[0009] According to some embodiments, a fixing groove (7) for fixing the bottom of the receiving container (11) is provided in the bottom pad (6).
[0010] According to some embodiments, the bottom of the receiving container (11) abuts against the bottom pad (6).
[0011] According to some embodiments, the receiving container clamp (2) is selected from a rib-type clamp (21), and the rib-type clamp (21) includes a circular ring located in the middle, and a connecting rib is fixed outside the circular ring, and the outward tail end of the connecting rib clamps the bottle mouth (1), and the circular ring is used to clamp the receiving container (11).
[0012] According to some embodiments, the receiving container clamp (2) is selected from a rubber ring (22).
[0013] According to some embodiments, the receiving container card (2) is selected from a magnetic adsorption card.
[0014] According to some embodiments, the receiving container clamp (2) is an elastic clamp, which includes a plurality of elastic clamps and is fixedly disposed around the bottle mouth (1).
[0015] According to some embodiments, the receiving container (11) is selected from a stoppered colorimetric tube.
[0016] According to some embodiments, the air inlet (3) is externally sealed by a cover (4).
[0017] Compared with the prior art, the utility model has the following beneficial effects:
[0018] The utility model provides a rapid filtration device for pesticide residue detection, a fixing groove for placing a receiving container is arranged at the bottom of the bottle body, the receiving container is conveniently fixed by a receiving container clamp, the receiving container is securely fixed in the bottle to prevent leakage of filtrate, and the problem that the receiving container and the filtration bottle body are easily broken by collision is solved; the matching receiving container is a cylinder with a smaller diameter, which is convenient for oscillating / vortexing the extract in large quantities during the subsequent pre-treatment process of pesticide residue detection, and is convenient for the filtrate to be statically layered and absorb the supernatant, thereby improving the accuracy of the experiment; furthermore, an elastic adsorption cover is arranged at the air inlet, and there is no need to block the air outlet by hand during the filtration process, the operation is convenient, and the detection efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 A schematic diagram of the structure of a rapid filtration device for detection provided in an embodiment of the utility model.
[0020] Figure 2 A cross-sectional view of a rapid filtration device for detection provided in an embodiment of the utility model.
[0021] Figure 3 A schematic diagram of a rib-type clamp provided in an embodiment of the utility model.
[0022] Figure 4 A schematic diagram of a rubber ring provided in an embodiment of the utility model.
[0023] In the figure:
[0024] Bottle mouth 1; receiving container clamp 2; air inlet 3; lid 4; air extraction port 5; bottom pad 6; receiver fixing groove 7; Buchner funnel 8; bottle stopper 9; bottle body 10; receiving container 11; rib-type clamp 21; rubber ring 22. DETAILED DESCRIPTION
[0025] The present invention is described in detail below in conjunction with the embodiments and drawings, but it should be understood that the embodiments and drawings are only used to exemplify the present invention and do not constitute any limitation on the protection scope of the present invention. All reasonable changes and combinations within the scope of the utility model's purpose fall within the protection scope of the present invention.
[0026] In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0027] The utility model is further described below in conjunction with the accompanying drawings.
[0028] Example 1
[0029] like Figures 1-2 This embodiment provides a rapid filtration device for detection, which includes a conical bottle body 10, with a bottle mouth 1 at the upper end of the bottle body 10, the bottle mouth 1 is plugged by a bottle plug 9, and a Buchner funnel 8 is fixedly penetrated on the bottle plug 9; the bottle body 10 is of upper and lower mouth type, with an air inlet 3 at the upper part of one side of the bottle body 10, and the air inlet 3 is sealed by a rubber cover 4, and an air extraction hole 5 is provided at the lower part of the other side of the bottle body 10; a bottom pad 6 is provided on the inner bottom surface of the bottle body 10, and a fixing groove 7 is provided in the center of the bottom pad 6, which is used to place and fix a receiving container 11 and prevent the receiving container from colliding with the bottom of the bottle body. At the bottle mouth 1, a receiving container clamp 2 is provided at a certain distance below the bottle plug 9, and the receiving container 11 is fixedly connected to the bottle mouth 1 through the receiving container clamp 2.
[0030] like Figure 1 One form of the receiving container clamp 2 is a plurality of elastic clamps fixedly arranged around the bottle mouth 1, the elastic clamps include two fixed blocks elastically connected at intervals, and the container mouth of the receiving container 11 is clamped in the bottle mouth 1 through the fixed blocks.
[0031] like Figure 3Another form of the receiving container clamp 2 is a rib-type clamp 21, the tail end of the connecting rib of the rib-type clamp 21 hooks the bottle mouth 1 outward for connection, and the connecting rib is fixed inwardly to the connecting ring, and the ring is used to clamp the receiving container 11. The opening of the receiving container 11 can be conveniently fixed by the receiving container clamp 2, and the receiving container 11 is located vertically below the Buchner funnel 8. The receiving container 11 in the figure is selected from a cylindrical stoppered colorimetric tube, and the receiving container clamp 2 can select a magnetic adsorption type receiving container clamp or an elastic connection type receiving container clamp, and the bottom of the receiving container 11 can be fixed through the fixing groove 7, and the upper end is installed on the receiving container clamp 2.
[0032] The height of the receiving container 11 should be lower than the bottle body 10 , and the bottom of the installed receiving container 11 should abut against the receiver fixing groove 7 to prevent the receiving container 11 from tipping over and leaking during use.
[0033] The cover 4 may be an elastic adsorption cover, which is conducive to quickly sealing the air inlet 3.
[0034] The bottom pad 6 and the fixing groove 7 can be made of an integral elastic material, such as a rubber material, to prevent the glass receiving container 11 from colliding with the glass bottle body 10 .
[0035] Here’s how to use it:
[0036] When in use, extend the receiving container 11 from the bottle mouth 1 into the fixing groove 7, fix the upper end of the receiving container 11 to the center of the bottle mouth 1 through the receiving container clamp 2, perpendicular to the bottom of the bottle body 10, and then plug the Büchner funnel 8 inserted into the bottle stopper 9 from the bottle mouth 1, so that the liquid outlet of the Büchner funnel 8 extends into the receiving container 11. At this time, the receiving container 11 is fixed vertically below the Büchner funnel 8; put the filter paper into the Büchner funnel, connect the air suction port 5 to the filter machine with a rubber tube, cover the cover 4 on the air inlet 3, turn on the filter machine, at this time, the inside of the bottle body is vacuum filtered to form a negative pressure, and the liquid enters the receiving container 11 through the filter paper. After the filtrate is filtered into the receiving container 11, remove the cover 4. At this time, air enters the bottle body 10 through the air inlet 3, the negative pressure in the bottle body is relieved, remove the Büchner funnel 8, turn off the filter machine, and the filtration is completed.
[0037] Example 2
[0038] like Figure 4This embodiment provides a rapid filtration device for detection, which includes a conical bottle body 10, with a bottle mouth 1 at the upper end of the bottle body 10, the bottle mouth 1 is plugged by a bottle plug 9, and a Buchner funnel 8 is fixedly penetrated on the bottle plug 9; the bottle body 10 is a top-bottom mouth type, with an air inlet 3 at the upper part of one side of the bottle body 10, and the air inlet 3 is sealed by a cover 4, and a suction hole 5 is provided at the lower part of the other side of the bottle body 10; a bottom pad 6 is provided at the bottom of the bottle body 10, and a fixing groove 7 is provided in the center of the bottom pad 6, which is used to place and fix the receiving container 11 and prevent the receiving container from colliding with the bottom of the bottle body. At the bottle mouth 1, a rubber ring 22 for anti-collision is placed at a certain distance below the bottle plug 9.
[0039] Therefore, another form of the receiving container clamp 2 is a rubber ring 22, the outer ring of which is clamped at the bottle mouth 7, and the inner ring is hollow, used to clamp the receiving container 11. When in use, the rubber ring 22 is sleeved on the outer wall of the receiving container 11 to prevent the receiving container 11 from colliding with the bottle mouth 1. The receiving container 11 is located vertically below the Buchner funnel 8. In the figure, the receiving container 11 is selected from a cylindrical stoppered colorimetric tube, and the anti-collision rubber ring 22 can be selected from an elastic rubber band material to facilitate removal from the receiving container 11. The receiving container 11 with the anti-collision rubber ring 22 is vertically extended from the bottle mouth and placed in the fixing groove 7.
[0040] The height of the receiving container 11 should be lower than the bottle body 10 , and the bottom of the installed receiving container 11 abuts against the bottom pad 6 to prevent the receiving container 11 from tipping over and leaking during use.
[0041] The cover 4 may be an elastic adsorption cover, which is conducive to quickly sealing the air inlet 3.
[0042] The bottom pad 6 is a rubber pad to prevent the glass receiving container 11 from colliding with the glass bottle body 10, and also helps to increase the friction at the bottom of the bottle body 10, so that it is placed more stably.
[0043] Here’s how to use it:
[0044] When in use, extend the receiving container 11 with the anti-collision rubber ring 2 from the bottle mouth 1 into the fixed groove 7 of the bottom pad 6, and then insert the Büchner funnel 8 with the bottle stopper 9 into the receiving container 11 from the bottle mouth 1. At this time, the receiving container 11 is fixed vertically below the Büchner funnel 8; use a rubber tube to connect the air suction hole 5 to the filter machine, cover the cover 4 on the air inlet 3, turn on the filter machine, and at this time, the inside of the bottle body is vacuum filtered to form a negative pressure, and the liquid enters the receiving container 11 through the filter paper. After the filtrate is filtered into the receiving container 11, remove the cover 4. At this time, air enters the bottle body 10 through the air inlet 3, and the negative pressure in the bottle body is relieved. Remove the Büchner funnel, turn off the filter machine, and the filtration is completed.
[0045] The above embodiments are only preferred implementations of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A rapid filtration device for detection, comprising a bottle body (10), wherein the upper end of the bottle body (10) is provided with a bottle mouth (1), the bottle mouth (1) is provided with a bottle plug (9), a Buchner funnel (8) is fixedly penetrated on the bottle plug (9), the bottle body (10) is of upper and lower mouth type, an air inlet (3) is provided on the upper part of one side, and an air extraction port (5) is provided on the lower part of the other side, Features: A receiving container clamp (2) is provided at a certain distance below the bottle stopper (9) at the bottle mouth (1), and a receiving container (11) is fixed by the receiving container clamp (2); the receiving container (11) is located vertically below the Buchner funnel (8); and a fixing part for fixing the receiving container (11) is provided at the bottom of the bottle body (10).
2. The rapid filtration device for detection according to claim 1, Features: The fixing member comprises a bottom pad (6) arranged on the inner bottom surface of the bottle body (10).
3. The rapid filtration device for detection according to claim 2, Features: The bottom pad (6) is provided with a fixing groove (7) for fixing the bottom of the receiving container (11).
4. The rapid filtration device for detection according to claim 2, Features: The bottom of the receiving container (11) abuts against the bottom pad (6).
5. The rapid filtration device for detection according to claim 2, Features: The receiving container clamp (2) is selected from a rib-type clamp (21), and the rib-type clamp (21) includes a circular ring located in the middle, and a connecting rib is fixedly provided outside the circular ring, and the outward tail end of the connecting rib clamps the bottle mouth (1), and the circular ring is used to clamp the receiving container (11).
6. The rapid filtration device for detection according to claim 2, Features: The receiving container clamp (2) is selected from a rubber ring (22).
7. The rapid filtration device for detection according to claim 2, Features: The receiving container card (2) is selected from a magnetic adsorption card.
8. The rapid filtration device for detection according to claim 2, Features: The receiving container clamp (2) is an elastic clamp, which includes a plurality of elastic clamps and is fixedly arranged around the bottle mouth (1).
9. The rapid filtration device for detection according to claim 1, Features: The receiving container (11) is selected from a stoppered colorimetric tube.
10. The rapid filtration device for detection according to any one of claims 1 to 9, Features: The air inlet (3) is sealed from the outside by a cover (4).