Plate washing device for ELSIA

Abstract

The utility model discloses a plate washing device for ELSIA, and relates to the technical field of plate washing. The upper part of the liquid storage device is in threaded fit with a sealing cover, the lower part of the liquid storage device is in threaded fit with a shell plate, the lower part of the liquid storage device is provided with a first valve corresponding to the shell plate, the upper part of the shell plate is connected with a second valve, the lower part of the shell plate is fixedly connected with a plurality of plate washing pipes, and floating plugs are movably connected in the plate washing pipes; the upper end and the lower end of the plate washing pipe are provided with a quantitative groove and a micropore respectively, the quantitative groove is communicated with the shell plate and the micropore, a limiting rod is arranged in the quantitative groove, the upper side of the limiting rod is fixedly connected with a guide rod, and the periphery of the guide rod is sleeved with the floating plug. The floating plug is arranged on the peripheral side of the guide rod in a sleeving mode, the stability of the floating plug in the vertical sliding process is improved, the probability that the floating plug inclines and deviates in the upward floating process is reduced, the floating plug is matched with the quantitative groove, the amount of washing liquid discharged out of the plate washing pipe every time is conveniently limited, and waste of the washing liquid is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of plate washing, and specifically relates to a plate washing device for ELSIA. Background Art

[0002] Enzyme-linked immunosorbent assay (ELISA) is a widely used technique in enzyme immunoassays. Washing steps reduce background signals caused by unbound antibodies, thereby increasing the signal-to-noise ratio of the analysis. Washing between each step ensures that only specific binding events are retained to generate a signal in the final step. Insufficient washing can lead to differences and high background, resulting in undesirable results.

[0003] A Chinese patent with publication number CN210876440U discloses a manual plate washing device, including a liquid storage bottle, a plate washing needle, a connecting tube, and a connecting cover; a detachable connecting cover is installed on the bottle mouth of the liquid storage bottle, and the plate washing needle is installed on the connecting cover through a connecting tube, a one-way water outlet valve is arranged on the connecting tube, and a one-way air inlet valve is arranged at the lower end of the bottle body of the liquid storage bottle.

[0004] During use, the manual plate washing device disclosed in the application squeezes the body of the liquid storage bottle to cause the washing liquid to flow out from the plate washing needle to clean the reaction plate. However, it is difficult to control the outflow amount of the washing liquid each time the liquid storage bottle is squeezed, which can easily cause excessive outflow of washing liquid to cause waste or insufficient outflow to affect the plate washing effect. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a plate washing device for ELSIA.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0007] A plate washing device for ELSIA, comprising a liquid reservoir, wherein the upper thread of the liquid reservoir is matched with a sealing cover, the lower thread of the liquid reservoir is matched with a shell plate, a first valve corresponding to the shell plate is arranged at the lower part of the liquid reservoir, a second valve is connected to the upper part of the shell plate, a plurality of plate washing pipes are fixedly connected under the shell plate, and a floating plug is movably connected in the plate washing pipe;

[0008] A quantitative groove and micropores are respectively provided at the upper and lower ends of the plate washing tube. The quantitative groove is connected with the shell plate and the micropores. A limit rod is installed in the quantitative groove. The end of the limit rod is installed on the inner wall side of the quantitative groove. The width of the limit rod is smaller than the diameter of the quantitative groove. A guide rod is fixedly connected to the upper side of the limit rod, and a floating plug sleeve is arranged on the peripheral side of the guide rod.

[0009] Optionally, the liquid reservoir includes a barrel body, a liquid storage chamber is provided in the barrel body, an outer screw barrel corresponding to the sealing cover is fixedly connected to the upper end of the barrel body, and a connecting pipe corresponding to the shell plate is fixedly connected to the lower end of the barrel body, the liquid storage chamber is communicated with the connecting pipe and the outer screw barrel, the first valve is arranged on the connecting pipe, and a handle is fixedly connected to the side of the barrel body, so that the device can be easily held and used.

[0010] Optionally, the sealing cover includes a cover plate, the lower end of the cover plate is provided with an inner screw groove adapted to the outer screw barrel, the outer screw barrel thread fits in the inner screw groove, and a sealing rubber gasket corresponding to the outer screw barrel is installed on the upper end of the inner wall of the inner screw groove, so as to improve the sealing performance of the connection between the cover plate and the outer screw barrel.

[0011] Optionally, a liquid passage chamber is provided in the shell plate, an external spiral tube is fixedly connected to the shell plate, the external spiral tube is communicated with the liquid passage chamber, the external spiral tube is threadedly fitted in the connecting tube, a sealing rubber ring is sleeved around the outer side of the external spiral tube, the sealing rubber ring is located between the connecting tube and the shell plate, and the sealing rubber ring improves the sealing performance of the connection between the external spiral tube and the connecting tube.

[0012] Optionally, an air pipe is fixedly connected to the shell plate, the air pipe is connected to the liquid chamber, the second valve is installed on the upper part of the air pipe, the second valve and the air pipe are both located on the side of the barrel body, and the outside air is allowed to enter the liquid chamber from the air pipe by opening the second valve.

[0013] Optionally, a liquid inlet hole corresponding to the plate washing tube is provided under the shell plate, and the diameter of the liquid inlet hole is smaller than the diameter of the quantitative tank and the float plug. By making the diameter of the liquid inlet hole smaller than the diameter of the float plug, the float plug floats up to block the liquid inlet hole.

[0014] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0015] The float plug is sleeved on the peripheral side of the guide rod to improve the stability of the float plug when it slides up and down, and reduce the probability of tilting and deflecting when the float plug floats up. The float plug cooperates with the quantitative groove to limit the amount of washing liquid discharged from the plate washing tube each time, thereby reducing the waste of washing liquid. The liquid reservoir is convenient for storing washing liquid, and cooperates with the sealing cover and the second valve to reduce the probability of contamination of the washing liquid in the liquid reservoir. The first valve cooperates with the second valve to control the washing liquid in the quantitative groove to be discharged from the micropores for washing the plates.

[0016] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0018] In the figure:

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0020] Figure 2 This is a schematic cross-sectional structure diagram of an embodiment of the utility model;

[0021] Figure 3 for Figure 2 Schematic diagram of the structure at point A in the middle.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] Liquid reservoir 1, barrel body 101, liquid storage chamber 102, connecting pipe 103, outer screw barrel 104, handle 105, sealing cover 2, cover plate 201, inner screw groove 202, sealing rubber gasket 203, first valve 3, shell plate 4, liquid chamber 401, air pipe 402, outer screw tube 403, liquid inlet hole 404, sealing rubber ring 5, second valve 6, plate washing tube 7, quantitative groove 701, micropore 702, limit rod 703, guide rod 704, float 8.

[0024] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0025] The utility model will now be further described in detail with reference to the accompanying drawings.

[0026] See also Figure 1-3 As shown, in this embodiment, a plate washing device for ELSIA is provided, comprising a liquid reservoir 1, a sealing cover 2 is threadedly matched with the upper part of the liquid reservoir 1, a shell plate 4 is threadedly matched with the lower part, a first valve 3 corresponding to the shell plate 4 is arranged at the lower part of the liquid reservoir 1, a second valve 6 is connected to the upper part of the shell plate 4, a plurality of plate washing pipes 7 are fixedly connected to the lower part of the shell plate 4, and a floating plug 8 is movably connected in the plate washing pipe 7;

[0027] A quantitative groove 701 and a micropore 702 are respectively provided at the upper and lower ends of the plate washing tube 7. The quantitative groove 701 is connected with the shell plate 4 and the micropore 702. A limiting rod 703 is installed in the quantitative groove 701. The end of the limiting rod 703 is installed on the inner wall side of the quantitative groove 701. The width of the limiting rod 703 is smaller than the diameter of the quantitative groove 701. A guide rod 704 is fixedly connected to the upper side of the limiting rod 703, and the float 8 is sleeved on the peripheral side of the guide rod 704.

[0028] The application of one aspect of this embodiment is as follows: when in use, unscrew the sealing cover 2 to inject washing liquid into the liquid reservoir 1, and then re-tighten the sealing cover 2 to seal the liquid reservoir 1. At this time, open the first valve 3 to allow the washing liquid to flow into the quantitative groove 701 through the shell plate 4, and limit the washing liquid in the quantitative groove 701 to flow out from the micropore 702 by pressure, so that the float 8 floats upward along the guide rod 704. When the washing liquid fills the quantitative groove 701, the float 8 fits the bottom of the shell plate 4 and blocks the connection between the quantitative groove 701 and the shell plate 4. At this time, the first valve 3 can be closed first and then the second valve 6 can be opened to allow external air to enter the shell plate 4 from the second valve 6, thereby controlling the washing liquid in the quantitative groove 701 to flow out from the micropore 702, or the device can be inverted first to allow the excess washing liquid in the shell plate 4 to flow back into the liquid reservoir 1, and then the first valve 3 is closed and the second valve 6 is opened in sequence. Similarly, the above operations are repeated, and the reaction plate can be cleaned in sequence with a quantitative washing liquid.

[0029] The liquid reservoir 1 of this embodiment includes a barrel body 101, in which a liquid storage chamber 102 is provided. An outer screw barrel 104 corresponding to the sealing cover 2 is fixedly connected to the upper end of the barrel body 101, and a connecting pipe 103 corresponding to the shell plate 4 is fixedly connected to the lower end. The liquid storage chamber 102 is communicated with the connecting pipe 103 and the outer screw barrel 104. The first valve 3 is arranged on the connecting pipe 103. A handle 105 is fixedly connected to the side of the barrel body 101. The handle 105 is convenient for holding the device for use. The liquid storage chamber 102 is convenient for containing enough washing liquid for multiple uses at one time, thereby reducing the frequency of filling the washing liquid and improving the convenience of using the device.

[0030] The sealing cover 2 of this embodiment includes a cover plate 201, and an inner screw groove 202 adapted to the outer screw barrel 104 is provided at the lower end of the cover plate 201. The outer screw barrel 104 is threadedly fitted in the inner screw groove 202, and a sealing rubber gasket 203 corresponding to the outer screw barrel 104 is installed at the upper end of the inner wall of the inner screw groove 202. The sealing rubber gasket 203 improves the sealing performance of the connection between the cover plate 201 and the outer screw barrel 104, and reduces the probability of air leakage in the gap between the outer screw barrel 104 and the cover plate 201.

[0031] In the shell plate 4 of the present embodiment, a liquid chamber 401 is provided in the shell plate 4, and an external spiral tube 403 is fixedly connected to the shell plate 4. The external spiral tube 403 is communicated with the liquid chamber 401, and the external spiral tube 403 is threadedly fitted in the connecting tube 103. A sealing rubber ring 5 is sleeved on the circumference of the external spiral tube 403, and the sealing rubber ring 5 is located between the connecting tube 103 and the shell plate 4. Through the cooperation between the external spiral tube 403 and the connecting tube 103, it is convenient to replace the shell plate 4 with different numbers, arrangements, and capacities of the quantitative groove 701 according to the use requirements, and the sealing rubber ring 5 is used to improve the sealing of the connection between the external spiral tube 403 and the connecting tube 103.

[0032] In this embodiment, an air pipe 402 is fixedly connected to the shell plate 4, and the air pipe 402 is connected to the liquid chamber 401. The second valve 6 is installed on the upper part of the air pipe 402. The second valve 6 and the air pipe 402 are both located on the side of the barrel body 101. By opening the second valve 6, external air enters the liquid chamber 401 from the air pipe 402.

[0033] A liquid inlet hole 404 corresponding to the plate washing tube 7 is provided below the shell plate 4 of the present embodiment. The diameter of the liquid inlet hole 404 is smaller than the diameter of the upper opening of the quantitative tank 701 and the diameter of the float 8. The upper part of the guide rod 704 is located in the liquid inlet hole 404, thereby reducing the probability of the float 8 detaching from the guide rod 704. The diameter of the liquid inlet hole 404 is smaller than the diameter of the float 8, so that the float 8 floats up to block the liquid inlet hole 404.

[0034] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A plate washing device for ELSIA, characterized in that: include: A liquid reservoir (1), wherein the upper thread of the liquid reservoir (1) is matched with a sealing cover (2), and the lower thread of the liquid reservoir (1) is matched with a shell plate (4), a first valve (3) corresponding to the shell plate (4) is arranged at the lower part of the liquid reservoir (1), a second valve (6) is connected to the upper part of the shell plate (4), a plurality of plate washing pipes (7) are fixedly connected to the lower part of the shell plate (4), and a floating plug (8) is movably connected inside the plate washing pipe (7); The upper and lower ends of the plate washing pipe (7) are respectively provided with a quantitative groove (701) and a micropore (702); the quantitative groove (701) is communicated with the shell plate (4) and the micropore (702); a limiting rod (703) is installed in the quantitative groove (701); a guide rod (704) is fixedly connected to the upper side of the limiting rod (703); and a floating plug (8) is sleeved on the peripheral side of the guide rod (704).

2. An ELSIA plate washing device according to claim 1, characterized in that: The liquid storage device (1) comprises a barrel body (101), a liquid storage chamber (102) is arranged in the barrel body (101), an outer screw barrel (104) corresponding to the sealing cover (2) is fixedly connected to the upper end of the barrel body (101), and a connecting pipe (103) corresponding to the shell plate (4) is fixedly connected to the lower end of the barrel body (101), and a first valve (3) is arranged on the connecting pipe (103).

3. An ELSIA plate washing device according to claim 2, characterized in that: The sealing cover (2) comprises a cover plate (201), the lower end of which is provided with an inner screw groove (202) adapted to the outer screw barrel (104), and the upper end of the inner wall of the inner screw groove (202) is provided with a sealing rubber pad (203).

4. The ELSIA plate washing device according to claim 2, characterized in that: A liquid passage chamber (401) is provided in the shell plate (4), an external spiral tube (403) is fixedly connected to the shell plate (4), the external spiral tube (403) is threadedly engaged in the connecting tube (103), and a sealing rubber ring (5) is sleeved around the outer side of the external spiral tube (403).

5. The ELSIA plate washing device according to claim 2, characterized in that: An air pipe (402) is fixedly connected to the shell plate (4), and a second valve (6) is installed on the upper part of the air pipe (402).

6. The ELSIA plate washing device according to claim 5, characterized in that: A liquid inlet hole (404) corresponding to the plate washing pipe (7) is provided below the shell plate (4), and the diameter of the liquid inlet hole (404) is smaller than the diameters of the quantitative groove (701) and the floating plug (8).

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