Liquid adding and transferring module and heavy metal detector

Abstract

The utility model discloses a liquid adding and transferring module and a heavy metal detector. The heavy metal detector comprises a rack, an oscillation disc and a liquid adding and transferring module. And the oscillation disc is movably connected with the rack. The liquid adding and transferring module is fixedly installed on the machine frame, the liquid adding and transferring module comprises a liquid adding and transferring nozzle, the liquid adding and transferring nozzle is provided with a cleaning liquid outlet hole, the cleaning liquid outlet hole is in an annular shape, and the cleaning liquid outlet hole surrounds the liquid adding and transferring nozzle. When the oscillation test tube needs to be cleaned, the plunger pump pumps cleaning liquid out of the cleaning liquid outlet hole, and the cleaning liquid outlet hole is arranged to be annular, so that the cleaning liquid is circularly diffused when sprayed out of the liquid adding and transferring nozzle, the inner wall of the oscillation test tube can be comprehensively cleaned, and the cleaning effect on the oscillation test tube is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrochemical detection instruments, in particular to a liquid adding and liquid transfer module and a heavy metal detector. Background Art

[0002] In the prior art, a heavy metal detector is usually equipped with a cleaning module, which injects cleaning liquid into a test tube through a cleaning tube to disinfect the test tube. However, the test tube cannot be cleaned well by a single tubular structure, and the cleaning quality is poor. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to provide a liquid adding and pipetting module and a heavy metal detector to solve one or more technical problems existing in the prior art, and at least provide a beneficial choice or create conditions.

[0004] The solution of the utility model to solve the technical problem is:

[0005] The liquid adding and pipetting module comprises: a liquid adding and pipetting nozzle, wherein the liquid adding and pipetting nozzle is provided with a cleaning liquid outlet hole, the cleaning liquid outlet hole is annular, and the cleaning liquid outlet hole surrounds the liquid adding and pipetting nozzle.

[0006] Through the above technical solution, when the oscillating test tube needs to be cleaned, the plunger pump pumps the cleaning liquid out from the cleaning outlet hole, and the cleaning outlet hole is set to be annular, so that the cleaning liquid spreads in a circular shape when sprayed from the liquid adding pipette nozzle, thereby comprehensively cleaning the inner wall of the oscillating test tube, which is beneficial to improving the cleaning effect of the oscillating test tube.

[0007] As a further improvement of the above technical solution, the liquid adding and pipetting module is further provided with a first pipetting hole, and the opening of the first pipetting hole is arranged below the cleaning liquid outlet hole.

[0008] Through the above technical solution, the first pipetting hole is used to extract the upper clear liquid in the oscillating test tube, and then the upper clear liquid in the oscillating test tube is transported to the module of the next step through structures such as a plunger pump, so as to complete the detection with other modules.

[0009] As a further improvement of the above technical solution, the liquid adding and pipetting module is provided with a second pipetting hole, and the opening of the second pipetting hole is arranged below the cleaning liquid outlet hole.

[0010] Through the above technical solution, after the oscillating test tube is cleaned, the liquid in the oscillating test tube is extracted through the second pipetting hole to complete the cleaning of the test tube.

[0011] As a further improvement of the above technical solution, the opening of the second pipetting hole is arranged below the opening of the first pipetting hole.

[0012] Through the above technical solution, the second pipetting hole is arranged at a lower position, so that the second pipetting hole can extract the liquid at the bottom of the oscillating test tube to ensure that the liquid in the oscillating test tube is completely extracted.

[0013] As a further improvement of the above technical solution, it also includes:

[0014] Liquid filling mounting bracket;

[0015] A liquid adding up and down driving device, wherein the liquid adding up and down driving device is fixedly mounted on the liquid adding mounting frame;

[0016] The liquid adding installation structure, the liquid adding up and down driving device drives the liquid adding installation structure to move up and down, and the liquid adding pipette nozzle is installed at the lower end of the liquid adding installation structure.

[0017] Through the above technical solution, the liquid adding up and down driving device drives the liquid adding installation structure and the liquid adding pipetting nozzle to move up and down.

[0018] As a further improvement of the above technical solution, the liquid adding installation structure is threadedly connected to the liquid adding pipetting nozzle.

[0019] Through the above technical solution, the liquid adding pipette nozzle is arranged to be connected to the liquid adding mounting structure through a thread, so that the liquid adding pipette nozzle can be quickly replaced when it is damaged.

[0020] As a further improvement of the above technical solution, it also includes:

[0021] A liquid adding guide track, the liquid adding guide track extending up and down;

[0022] A liquid adding guide seat, wherein the liquid adding guide track and the liquid adding guide seat are slidably connected;

[0023] The liquid adding guide rail and the liquid adding guide seat are respectively fixed to the liquid adding installation structure and the liquid adding installation frame.

[0024] Through the above technical solution, the liquid adding guide track and the liquid adding guide seat can guide the liquid adding installation structure, thereby preventing the liquid adding pipette nozzle from deviating during the up and down movement.

[0025] As a further improvement of the above technical solution, the liquid adding pipette nozzle is provided with a tube passing through hole.

[0026] Through the above technical solution, the pipe connected to the liquid adding pipette nozzle can pass through the pipe through hole and out of the liquid adding pipette nozzle.

[0027] As a further improvement of the above technical solution, a plurality of reinforcing connection blocks are provided in the cleaning liquid outlet, and the plurality of reinforcing connection blocks are evenly arranged.

[0028] Through the above technical solution, by setting a reinforced connecting block, the overall strength of the liquid-adding pipette nozzle can be improved, avoiding large deformation of the cleaning liquid outlet during long-term use and affecting the spraying effect of the cleaning liquid, thereby effectively ensuring the cleaning performance of the oscillating test tube.

[0029] Heavy metal detector, including:

[0030] frame;

[0031] An oscillating plate, the oscillating plate being movably connected to the frame;

[0032] The liquid adding and pipetting module as described in any of the above items, wherein the liquid adding and pipetting module is fixedly mounted on the frame.

[0033] Through the above technical solution, when the oscillating test tube needs to be cleaned, the plunger pump pumps the cleaning liquid out from the cleaning outlet hole, and the cleaning outlet hole is set to be annular, so that the cleaning liquid spreads in a circular shape when sprayed from the liquid adding pipette nozzle, thereby comprehensively cleaning the inner wall of the oscillating test tube, which is beneficial to improving the cleaning effect of the oscillating test tube.

[0034] The beneficial effect of the utility model is to improve the cleaning effect of the oscillating test tube.

[0035] The utility model is used in the technical field of electrochemical detection instruments. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following is a brief description of the drawings required for the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present utility model, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0037] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0038] Figure 2 It is a schematic diagram of the overall structure of the liquid adding and liquid transfer module of an embodiment of the utility model;

[0039] Figure 3 It is a schematic diagram of the overall structure of the liquid adding pipetting nozzle of an embodiment of the utility model.

[0040] In the figure, 100, frame; 400, oscillating plate; 410, oscillating test tube; 600, liquid adding and pipetting module; 610, liquid adding mounting frame; 620, liquid adding up and down driving device; 621, liquid adding up and down driving member; 622, liquid adding up and down driving screw; 623, liquid adding up and down driving seat; 630, liquid adding mounting structure; 640, liquid adding and pipetting nozzle; 641, tube through hole; 642, cleaning liquid outlet hole; 643, strengthening connection block; 644, first pipetting hole; 645, second pipetting hole; 651, liquid adding guide track; 652, liquid adding guide seat. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the invention can be combined interchangeably without conflicting with each other.

[0042] Reference Figures 1 to 3 The heavy metal detector comprises: a frame 100, an oscillating plate 400 and a liquid adding and pipetting module 600.

[0043] The oscillating plate 400 is installed on the frame 100 , and a plurality of test tube insertion holes are provided on the oscillating plate 400 , and the plurality of test tube insertion holes are arranged at equal intervals around the circumference of the oscillating plate 400 .

[0044] Specifically, the oscillating plate 400 is connected to the frame 100 through an oscillating rotating mechanism, and the oscillating rotating mechanism can drive the oscillating plate 400 to vibrate and rotate the oscillating plate 400. The oscillating rotating mechanism is used to rotate the multiple oscillating test tubes 410 to different stations.

[0045] The oscillation and rotation mechanism includes an oscillation module and a rotation module. The oscillation and rotation mechanism is a conventional device used in heavy metal detectors. The specific structure of the oscillation and rotation mechanism is not described here. Those skilled in the art can select the specific structure of the oscillation module and the rotation module according to actual needs.

[0046] A plurality of oscillating test tubes 410 are inserted on the oscillating plate 400 , and the plurality of oscillating test tubes 410 are arranged equidistantly around the circumference of the rotation axis of the oscillating plate 400 .

[0047] The liquid adding and pipetting module 600 includes: a liquid adding mounting frame 610 , a liquid adding up and down driving device 620 , a liquid adding mounting structure 630 and a liquid adding and pipetting nozzle 640 .

[0048] Specifically, the liquid adding mounting bracket 610 is fixedly mounted on the frame 100 .

[0049] The liquid adding up and down driving device 620 is installed on the liquid adding mounting frame 610. Specifically, in the present embodiment, the liquid adding up and down driving device 620 includes a liquid adding up and down driving member 621, a liquid adding up and down driving screw 622 and a liquid adding up and down driving seat 623. The liquid adding up and down driving member 621 is fixedly installed on the liquid adding mounting frame 610, both ends of the liquid adding up and down driving screw 622 are rotatably connected to the liquid adding mounting frame 610, and the liquid adding up and down driving seat 623 is threadedly connected to the liquid adding up and down driving screw 622. Specifically, in the present embodiment, the liquid adding up and down driving member 621 is configured as a rotary motor. In other embodiments, the liquid adding up and down driving member 621 can also be configured as other conventional rotary driving devices. Those skilled in the art can select the specific structure of the liquid adding driving device according to actual needs.

[0050] The liquid adding installation structure 630 is fixedly connected to the liquid adding upper and lower driving seats 623 .

[0051] In other embodiments, the liquid adding up and down driving device 620 may also be configured as a linear motor, and those skilled in the art may select the specific structure of the liquid adding up and down driving device 620 .

[0052] The liquid adding installation structure 630 is fixedly installed on the liquid adding upper and lower driving seat 623 .

[0053] The liquid adding pipette nozzle 640 is fixedly mounted on the lower end of the liquid adding mounting structure 630. Specifically, in this embodiment, the liquid adding pipette nozzle 640 is connected to the liquid adding mounting structure 630 through a thread. The liquid adding pipette nozzle 640 is arranged to be connected to the liquid adding mounting structure 630 through a thread, so that the liquid adding pipette nozzle 640 can be quickly replaced when it is damaged.

[0054] The liquid adding pipetting nozzle 640 is provided with a tube passing through hole 641 .

[0055] Specifically, in this embodiment, the liquid adding pipette nozzle 640 is provided with a cleaning liquid outlet hole 642. Specifically, in this embodiment, the cleaning liquid outlet hole 642 is arranged in an annular shape. The cleaning liquid outlet hole 642 is connected to the plunger pump through a cleaning liquid pipeline, and the cleaning liquid pipeline passes through the liquid adding pipette nozzle 640 from the pipe penetration hole 641.

[0056] When the oscillating test tube 410 needs to be cleaned, the plunger pump pumps the cleaning liquid out from the cleaning outlet hole 642. The cleaning outlet hole 642 is set to be annular so that the cleaning liquid spreads in a circular shape when sprayed out from the liquid adding pipette nozzle 640, thereby comprehensively cleaning the inner wall of the oscillating test tube 410, which is beneficial to improving the cleaning effect of the oscillating test tube 410.

[0057] In other embodiments, the cleaning liquid outlet hole 642 can also be set to a circular hole structure, and the number of the cleaning liquid outlet holes 642 can be set to multiple, and the multiple cleaning liquid outlet holes 642 are arranged in a circular array around the central axis of the liquid adding pipette nozzle 640, so that the cleaning liquid can be sprayed from the multiple cleaning liquid outlet holes 642 into the oscillating test tube 410, thereby performing a more comprehensive cleaning of the inner wall of the oscillating test tube 410, thereby improving the cleaning effect of the oscillating test tube 410.

[0058] Specifically, in this embodiment, a reinforcing connection block 643 is provided in the cleaning liquid outlet hole 642, and the reinforcing connection block 643 connects two side walls of the cleaning liquid outlet hole 642 that are arranged opposite to each other in the upper and lower directions. By providing the reinforcing connection block 643, the overall strength of the liquid adding pipette nozzle 640 can be improved, and the cleaning liquid outlet hole 642 can be prevented from being greatly deformed during long-term use, thereby preventing the cleaning liquid from being sprayed out due to the large deformation, thereby effectively ensuring the cleaning performance of the oscillating test tube 410.

[0059] The liquid adding pipette nozzle 640 is provided with a first pipette hole 644 , the first pipette hole 644 is connected to a first pipette pipe, the first pipette pipe passes through the liquid adding pipette nozzle 640 through the pipe through hole 641 , and one end of the first pipette pipe away from the liquid adding pipette nozzle 640 is connected to a plunger pump.

[0060] The first pipetting hole 644 is used to extract the upper clear liquid in the oscillating test tube, and then the upper clear liquid in the oscillating test tube is transported to the module of the next step through a plunger pump and other structures to complete the detection with other modules.

[0061] The liquid adding pipette nozzle 640 is provided with a second pipette hole 645, which is connected to the plunger pump through a second pipette pipe, and the second pipette pipe passes through the pipe through hole 641 and out of the liquid adding pipette nozzle 640. The opening of the second pipette hole 645 is arranged below the opening of the first pipette hole 644.

[0062] After cleaning the oscillating test tube, the liquid in the oscillating test tube is extracted through the second pipetting hole to complete the cleaning of the test tube.

[0063] The liquid adding up and down driving device 620 drives the liquid adding installation structure 630 and the liquid adding up and down driving seat 623 to move downward, so that the liquid adding pipette nozzle 640 descends into the test tube, and then the liquid is pumped out by the plunger pump.

[0064] Specifically, in this embodiment, a liquid adding guide rail 651 and a liquid adding guide seat 652 are provided between the liquid adding mounting frame 610 and the liquid adding mounting structure 630 . The liquid adding guide rail 651 extends in the up and down direction, and the liquid adding guide rail 651 is relatively fixed to the liquid adding up and down driving device 620 .

[0065] Specifically, in this embodiment, the liquid adding guide track 651 is fixedly mounted on the liquid adding mounting frame 610 by screws, and the liquid adding guide seat 652 is fixedly mounted on the liquid adding mounting structure 630. In other embodiments, the liquid adding guide track 651 may be fixedly mounted on the liquid adding mounting structure 630, and the liquid adding guide seat 652 may be fixedly mounted on the liquid adding mounting frame 610, and those skilled in the art may select the specific installation positions of the liquid adding guide track 651 and the liquid adding guide seat 652.

[0066] The preferred implementation modes of the present invention are specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. Liquid adding and pipetting module, characterized in that: include: A liquid adding pipette nozzle, wherein the liquid adding pipette nozzle is provided with a cleaning liquid outlet hole, the cleaning liquid outlet hole is annular, and the cleaning liquid outlet hole surrounds the liquid adding pipette nozzle; The liquid adding and pipetting module is further provided with a first pipetting hole, and the opening of the first pipetting hole is arranged below the cleaning liquid outlet hole; The liquid adding and pipetting module is provided with a second pipetting hole, the opening of which is arranged below the cleaning outlet hole; the opening of which is arranged below the opening of the first pipetting hole.

2. The liquid adding and liquid transfer module according to claim 1, characterized in that: Also includes: Liquid filling mounting bracket; A liquid adding up and down driving device, wherein the liquid adding up and down driving device is fixedly mounted on the liquid adding mounting frame; The liquid adding installation structure, the liquid adding up and down driving device drives the liquid adding installation structure to move up and down, and the liquid adding pipette nozzle is installed at the lower end of the liquid adding installation structure.

3. The liquid adding and liquid transfer module according to claim 2, characterized in that: The liquid adding installation structure is threadedly connected to the liquid adding pipetting nozzle.

4. The liquid adding and liquid transfer module according to claim 2, characterized in that: Also includes: A liquid adding guide track, the liquid adding guide track extending up and down; A liquid adding guide seat, wherein the liquid adding guide track and the liquid adding guide seat are slidably connected; The liquid adding guide rail and the liquid adding guide seat are respectively fixed to the liquid adding installation structure and the liquid adding installation frame.

5. The liquid adding and liquid transfer module according to claim 1, characterized in that: The liquid adding pipetting nozzle is provided with a tube penetration hole.

6. The liquid adding and liquid transfer module according to claim 1, characterized in that: A plurality of reinforcing connection blocks are arranged in the cleaning liquid outlet hole, and the plurality of reinforcing connection blocks are evenly arranged. 7.Heavy metal detector, characterized by: include: frame; An oscillating plate, the oscillating plate being movably connected to the frame; The liquid adding and pipetting module according to any one of claims 1 to 6, wherein the liquid adding and pipetting module is fixedly mounted on the frame.

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