Rapid cross-contamination-free liquid adding and uniform mixing device for reagents

Abstract

The utility model relates to the technical field of total phosphorus measuring equipment, in particular to a rapid cross-contamination-free liquid adding and uniform mixing device for reagents, which is characterized in that a plurality of reagent bottles are arranged in a reagent bottle bracket side by side, a pipette bracket is arranged on one side of the reagent bottle bracket, and a pipetting device is arranged on the rear side of the reagent bottle bracket; after the pipette in the pipette support is installed on the pipette device, a reagent in the reagent bottle is extracted and added into a test tube on the test tube rotary table arranged on one side of the pipette device, a cap opening and closing mechanism used for unscrewing a test tube bottle cap is arranged on one side of the test tube rotary table, and a uniform mixing mechanism is arranged on the rear side of the test tube rotary table. The device disclosed by the utility model has the beneficial effects that cross contamination possibly caused by different reagents among experiments is solved, the cost is reduced, the hand-cranking action of a laboratory technician can be simulated to uniformly mix test tubes while the reagents are filled, and the experiment time is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of total phosphorus determination equipment, in particular to a liquid adding and mixing device for reagents that is fast and free of cross contamination. Background Art

[0002] There are two main ways to add reagents except manual operation: 1. One pump is equipped with a three-way switching valve. After adding one reagent, the pump chamber and the valve chamber need to be repeatedly flushed before adding the second reagent. This method takes a long time to clean and is prone to contamination; 2. Multiple pumps and multiple three-way valves are used at the same time, and each pump is filled with one reagent. This method can avoid cross contamination between reagents, but the cost is relatively high and it takes up a large space, and other experiments cannot be carried out.

[0003] To this end, the present application designs a device for rapid liquid addition and mixing of reagents without cross contamination to solve the above problems. Utility Model Content

[0004] In order to make up for the deficiencies in the prior art, the utility model provides a liquid adding and mixing device for reagents quickly without cross contamination.

[0005] A device for rapid liquid addition and mixing of reagents without cross contamination, comprising a reagent bottle support, characterized in that:

[0006] A plurality of reagent bottles are placed side by side in a row in the reagent bottle holder, a pipette holder is provided on one side of the reagent bottle holder, a pipette device is provided on the rear side of the reagent bottle holder, the pipette in the pipette holder is installed on the pipette device to extract the reagent from the reagent bottle and add the reagent to a test tube on a test tube turntable provided on one side of the pipette device, a switch cover mechanism for unscrewing the test tube bottle cover is provided on one side of the test tube turntable, and a mixing mechanism is provided on the rear side of the test tube turntable.

[0007] Furthermore, in order to better realize the utility model, the pipette holder is fixedly connected to the reagent bottle holder, a waste liquid tank fixedly connected to the reagent bottle holder is provided directly below the pipette holder, a first horizontal movable slide is provided below the waste liquid tank, a head stripping holder is fixedly connected to the slider of the first horizontal movable slide, and a horizontally arranged card is fixedly connected to the top of the head stripping holder.

[0008] Furthermore, in order to better realize the utility model, the pipetting device includes a first vertical movable slide, the bottom of the first vertical movable slide is connected to a second horizontal movable slide through a rotating motor, the slider of the first vertical movable slide is horizontally connected to a sampling head bracket, the end of the sampling head bracket is connected to a sampling head, a drip-proof groove is provided below the sampling head bracket, and the sampling head is clamped to the pipette.

[0009] Furthermore, in order to better realize the utility model, a third horizontal movable slide is provided at the bottom of the test tube turntable close to the switch cover mechanism, and a clamping cylinder is fixedly connected to the slider of the third horizontal movable slide. A visual camera is provided on one side of the clamping cylinder. After the clamping cylinder clamps the test tube, the bottle cap can be unscrewed through the switch cover mechanism.

[0010] Furthermore, in order to better realize the utility model, the cover opening and closing mechanism includes a second vertical movable slide, and a rotating mechanism and a clamping mechanism are fixedly connected to the slider of the second vertical movable slide for unscrewing the bottle cap.

[0011] Furthermore, in order to better realize the utility model, the mixing mechanism includes a third vertical movable slide, the slide of the third vertical movable slide is connected to a rotating motor, and the rotating motor is connected to a clamping claw.

[0012] The beneficial effects of the utility model are:

[0013] The device of the utility model solves the problem of possible cross contamination between different reagents in various experiments, reduces costs, and can also imitate the hand-shaking action of the experimenter to mix the test tube while adding reagents, thus saving experiment time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model after removing part of the shell;

[0016] Figure 3 This is the second schematic diagram of the three-dimensional structure of the utility model after removing part of the shell.

[0017] In the figure,

[0018] 1. Reagent bottle holder, 2. Pipette holder, 3. Pipetting device, 4. Test tube turntable, 5. Open and close cover mechanism, 6. Mixing mechanism, 7. Test tube, 101. Reagent bottle, 201. Pipette, 202. Waste liquid tank, 203. First horizontal movable slide, 204. Head removal holder, 205. Card, 301. First vertical movable slide, 302. Sampling head holder, 303. Sampling head, 304. Second horizontal movable slide, 401. Third horizontal movable slide, 402. Gripper cylinder, 403. Visual camera, 501. Second vertical movable slide, 502. Bottle cap, 601. Third vertical movable slide, 602. Rotating motor, 603. Gripper. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0021] Figure 1-Figure 3 This is a specific embodiment of the utility model, which is a device for rapid liquid addition and mixing of reagents without cross contamination. A plurality of reagent bottles 101 are placed side by side in a reagent bottle holder 1, a pipette holder 2 is provided on one side of the reagent bottle holder 1, and a pipette device 3 is provided on the rear side of the reagent bottle holder 1. After the pipette 201 in the pipette holder 2 is installed on the pipette device 3, the reagent in the reagent bottle 101 is extracted and added to a test tube 7 on a test tube turntable 4 arranged on one side of the pipette device, a switch cover mechanism 5 for unscrewing the test tube bottle cover is provided on one side of the test tube turntable 4, and a mixing mechanism 6 is provided on the rear side of the test tube turntable 4.

[0022] The pipette holder 2 is fixedly connected to the reagent bottle holder 1. A waste liquid tank 202 fixedly connected to the reagent bottle holder 1 is provided directly below the pipette holder 2. A first horizontal movable slide 203 is provided below the waste liquid tank 202. A head removal holder 204 is fixedly connected to the slider of the first horizontal movable slide 203. A horizontally arranged card 205 is fixedly connected to the top of the head removal holder 204. The pipetting device 3 includes a first vertical movable slide 301. The bottom of the first vertical movable slide 301 is connected to a second horizontal movable slide 304 through a rotating motor. The slider of the first vertical movable slide 301 is horizontally connected to a sampling head holder 302. The end of the sampling head holder 302 is connected to a sampling head 303. An anti-drip groove is provided below the sampling head holder 302. The sampling head 303 is clamped to the pipette 201. The liquid transfer device 3 includes a first vertical movable slide 301, the bottom of which is connected to a second horizontal movable slide 304 via a rotating motor, the slider of the first vertical movable slide 301 is horizontally connected to a sampling head bracket 302, the end of the sampling head bracket 302 is connected to a sampling head 303, a drip-proof groove is provided below the sampling head bracket 302, and the sampling head 303 is clamped with a pipette 201. The test tube turntable 4 is provided with a third horizontal movable slide 401 at the bottom near the switch cover mechanism 5, the slider of the third horizontal movable slide 401 is fixedly connected to a clamping cylinder 402, a visual camera 403 is provided on one side of the clamping cylinder 402, and the clamping cylinder 402 can be screwed off the bottle cap 502 through the switch cover mechanism 5 after the clamping cylinder 402 clamps the test tube. The switch cover mechanism 5 includes a second vertical movable slide 501, the slider of the second vertical movable slide 501 is fixedly connected to a rotating mechanism and a clamping mechanism for screwing off the bottle cap 502. The mixing mechanism 6 includes a third vertical movable slide 601 , the slide of the third vertical movable slide 601 is connected to a rotating motor 602 , and the rotating motor 602 is connected to a clamp 603 .

[0023] The specific usage of this embodiment is as follows:

[0024] The pipetting device 3 moves to the pipette holder 2 to install a pipette 201, then moves to the reagent bottle holder 1 to take a sample, and then moves to the test tube turntable 4 to add the reagent. The clamping claw cylinder 402 at the bottom of the test tube turntable 4 clamps the test tube 7, and the upper switch cover mechanism 5 screws the cap of the current test tube 7. When another reagent needs to be added, the pipetting device 3 moves to the pipette holder 2, the first horizontal moving slide 203 moves, and the head removal holder 204 moves forward with the card. After the pipetting device 3 is lifted up, the current pipette 201 is removed, and another pipette 201 is installed and the above steps are repeated to add the reagent to the test tube 7. After the reagent is added, the mixing mechanism 6 clamps the test tube 7 and rotates it back and forth to simulate the hand-shaking action for mixing.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A device for rapid liquid addition and mixing of reagents without cross contamination, comprising a reagent bottle holder (1), characterized in that: A plurality of reagent bottles (101) are placed in a row in the reagent bottle holder (1), a pipette holder (2) is provided on one side of the reagent bottle holder (1), and a liquid transfer device (3) is provided on the rear side of the reagent bottle holder (1). After the liquid transfer device (3) is installed with a pipette (201) in the pipette holder (2), the reagent in the reagent bottle (101) is extracted and added to a test tube (7) on a test tube turntable (4) provided on one side of the liquid transfer device. A cover opening and closing mechanism (5) for screwing off the test tube bottle cover is provided on one side of the test tube turntable (4), and a mixing mechanism (6) is provided on the rear side of the test tube turntable (4).

2. The device for rapid liquid addition and mixing without cross contamination of reagents according to claim 1, characterized in that: The pipette support (2) is fixedly connected to the reagent bottle support (1); a waste liquid tank (202) fixedly connected to the reagent bottle support (1) is provided directly below the pipette support (2); a first horizontal movable slide (203) is provided below the waste liquid tank (202); a head removal support (204) is fixedly connected to the slider of the first horizontal movable slide (203); and a horizontally arranged card (205) is fixedly connected to the top of the head removal support (204).

3. The device for rapid liquid addition and mixing without cross contamination of reagents according to claim 1, characterized in that: The liquid transfer device (3) comprises a first vertical movable slide (301), the bottom of the first vertical movable slide (301) is connected to a second horizontal movable slide (304) via a rotating motor, the slider of the first vertical movable slide (301) is horizontally connected to a sampling head bracket (302), the end of the sampling head bracket (302) is connected to a sampling head (303), an anti-drip groove is provided below the sampling head bracket (302), and the sampling head (303) is clamped to a liquid transfer tube (201).

4. The device for rapid liquid addition and mixing without cross contamination of reagents according to claim 1, characterized in that: The test tube turntable (4) is provided with a third horizontal movable slide (401) at the bottom near the cover opening and closing mechanism (5). A clamping claw cylinder (402) is fixedly connected to the slider of the third horizontal movable slide (401). A visual camera (403) is provided on one side of the clamping claw cylinder (402). After the clamping claw cylinder (402) clamps the test tube, the bottle cap (502) can be screwed off through the cover opening and closing mechanism (5).

5. The device for rapid liquid addition and mixing without cross contamination of reagents according to claim 4, characterized in that: The lid opening and closing mechanism (5) comprises a second vertical movable slide (501), and a rotating mechanism and a clamping mechanism are fixedly connected to the slider of the second vertical movable slide (501) for unscrewing the bottle cap (502).

6. The device for rapid liquid addition and mixing without cross contamination of reagents according to claim 1, characterized in that: The mixing mechanism (6) comprises a third vertical movable slide (601), the slide of the third vertical movable slide (601) is connected to a rotating motor (602), and the rotating motor (602) is connected to a clamping claw (603).

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