Pipettor for food detection

Abstract

The utility model discloses a pipettor for food detection, which comprises a pipettor main structure, the pipettor main structure comprises a liquid storage tank, the surface of the liquid storage tank is provided with a transparent observation window, the edge of the transparent observation window is pasted with a scale strip, the interior of the liquid storage tank is provided with a liquid storage cavity, and the liquid storage cavity is provided with a liquid outlet. A piston part is arranged in the liquid storage cavity, one end of the piston part is fixedly connected with a fixing rod, and the other end of the fixing rod is fixedly connected with a first lifting part; when a user uses the pipettor, different pipetting needle tubes can be replaced according to different conditions, compared with a traditional pipettor which needs to find different pipetting needle tubes and then assemble and disassemble the different pipetting needle tubes during use and replacement, the pipettor has the advantages that the needle tubes can be replaced more conveniently and quickly, and when the pipettor is used, not only can accurate liquid taking work be realized, but also the working efficiency is improved. Pre-detection can be carried out in time after liquid taking, and the problem of detection errors caused by improper storage of some food liquid can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pipettes, in particular to a pipette for food testing. Background Art

[0002] A pipette, also known as a pipette gun, is a measuring tool that transfers liquid from one container to another within a certain range. It is widely used in biology, chemistry and other fields. Its basic structure mainly includes a display window, a capacity adjustment component, a piston, an O-ring, a suction tube and a pipette tip (pipette nozzle).

[0003] However, the common pipettes on the market still have some shortcomings in actual use. For example, the common pipettes on the market often require continuous replacement of pipette needles due to usage requirements and needs during actual use. Frequent replacement is not only very troublesome, but also causes slow detection and pipetting work. In addition, common pipettes generally do not test immediately after taking out the liquid, so improper storage such as liquid deterioration often occurs during storage and transportation, which makes subsequent food liquid testing results prone to errors. Utility Model Content

[0004] The purpose of the present utility model is to provide a pipette for food testing to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pipette for food testing, comprising a pipette main structure, the pipette main structure comprising a liquid storage tank, a transparent observation window being provided on the surface of the liquid storage tank, a scale bar being pasted on the edge of the transparent observation window, a liquid storage cavity being provided inside the liquid storage tank, a piston component being provided inside the liquid storage cavity, one end of the piston component being fixedly connected to a fixing rod, the other end of the fixing rod being fixedly connected to a first lifting component, the other end of the liquid storage tank being fixedly connected to a connecting pipe joint, a pre-detection structure being fixedly installed on the surface of the pipette main structure, an adjustment mechanism being fixedly installed on the bottom of the pipette main structure, and the adjustment mechanism comprising a mounting shell.

[0006] The pre-detection structure includes a hollow pillar, one end of which extends to the outside of the liquid storage tank and is fixedly connected to a second pulling component, and a button battery and a detection sensor module are respectively provided on both sides of the surface of the hollow pillar.

[0007] Among them, a rotating shaft is rotatably installed at the middle position of the mounting shell, a fixing frame is fixedly installed on the rotating shaft, one end of the fixing frame is fixedly connected to a bolt component, and a threaded connection hole that cooperates with the bolt component is opened at the bottom of the liquid storage tank.

[0008] Among them, elastic limiting pillars are fixedly installed on the surface of the mounting shell, and there are three elastic limiting pillars in total. Each of the elastic limiting pillars is composed of a reset spring and a pillar. The surface of the fixing frame is provided with limiting holes that cooperate with the elastic limiting pillars.

[0009] Among them, connecting branches are fixedly installed at equal intervals on the circumferential surface of the mounting shell, and there are three connecting branches in total. The first pipette needle, the second pipette needle and the third pipette needle are fixedly installed between the connecting branches respectively, and the first pipette needle, the second pipette needle and the third pipette needle are connected to the three connecting branches respectively through silicone hoses.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The present invention is provided with an adjustment mechanism and other structures that are convenient for replacing pipette needles on the pipette, so that the pipette as a whole can be replaced with different pipette needles according to different situations when the user is in use. Compared with the traditional pipette, which needs to find different pipette needles and then install and unload them when using and replacing, the pipette is replaced more conveniently and quickly. By providing a transparent observation window with a scale bar and a pre-detection structure and other structures on the pipette, the pipette can not only achieve accurate liquid collection in actual use, but also can perform pre-detection in time after liquid collection, which can effectively avoid the problem of detection error caused by improper storage of certain food liquids. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the main structure of the pipette of the utility model;

[0014] Figure 3 This is a schematic structural diagram of the pre-detection structure of the utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0016] Figure 5 This is a schematic diagram of the internal structure of the adjustment mechanism of the utility model.

[0017] In the figure: 1. Main structure of the pipette; 11. Liquid storage tank; 12. Threaded connection hole; 13. Transparent observation window; 14. Scale bar; 15. Liquid storage cavity; 16. Piston component; 17. Fixing rod; 18. First pulling component; 19. Connecting pipe joint; 2. Pre-detection structure; 21. Hollow pillar; 22. Second pulling component; 23. Button battery; 24. Detection sensor module; 3. Adjustment mechanism; 31. Mounting shell; 32. Rotating shaft; 33. Fixing frame; 34. Bolt component; 35. Limiting hole; 36. Elastic limiting pillar; 37. Connecting branch pipe; 38. First pipette needle; 39. Second pipette needle; 310. Third pipette needle; 311. Silicone hose. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-5 The utility model provides a technical solution: a pipette for food testing, including a pipette main structure 1, the pipette main structure 1 includes a liquid storage tank 11, the surface of the liquid storage tank 11 is provided with a transparent observation window 13, the edge of the transparent observation window 13 is pasted with a scale bar 14, the interior of the liquid storage tank 11 is provided with a liquid storage cavity 15, the interior of the liquid storage cavity 15 is provided with a piston component 16, one end of the piston component 16 is fixedly connected to a fixing rod 17, the other end of the fixing rod 17 is fixedly connected to a first pulling component 18, the other end of the liquid storage tank 11 is fixedly connected to a connecting pipe section 19, a pre-detection structure 2 is fixedly installed on the surface of the pipette main structure 1, an adjusting mechanism 3 is fixedly installed on the bottom of the pipette main structure 1, the adjusting mechanism 3 includes a mounting shell 31, and a transparent observation window 13 with a scale bar 14 is provided, so that the pipette can achieve accurate liquid extraction during actual use.

[0020] Among them, the pre-detection structure 2 includes a hollow pillar 21, which can facilitate the installation of a button battery 23 and a detection sensor module 24. One end of the hollow pillar 21 extends to the outside of the liquid storage tank 11 and is fixedly connected to a second pulling component 22. A button battery 23 and a detection sensor module 24 are respectively provided on both sides of the surface of the hollow pillar 21. The detection sensor module 24 can perform pre-detection in time after liquid is taken, which can effectively avoid the problem of detection errors caused by improper storage of certain food liquids.

[0021] Among them, a rotating shaft 32 is rotatably installed at the middle position of the mounting shell 31. The setting of the rotating shaft 32 enables the mounting shell 31 to rotate as a whole. A fixing frame 33 is fixedly installed on the rotating shaft 32. One end of the fixing frame 33 is fixedly connected to a bolt component 34. A threaded connection hole 12 that cooperates with the bolt component 34 is provided at the bottom of the liquid storage tank 11. Threaded assembly and disassembly are performed through the bolt component 34, which is not only convenient but also more secure.

[0022] Among them, elastic limiting pillars 36 are fixedly installed on the surface of the mounting shell 31. There are three elastic limiting pillars 36 in total, and the elastic limiting pillars 36 are all composed of a reset spring and a pillar. The surface of the fixing frame 33 is provided with limiting holes 35 that cooperate with the elastic limiting pillars 36. The elastic limiting pillars 36 and the limiting holes 35 and other structures make it convenient to operate when replacing the pipette needle and facilitate position limitation after replacement.

[0023] Among them, the circumferential surface of the mounting shell 31 is fixedly installed with connecting branches 37 at equal intervals, and there are three connecting branches 37 in total. The first pipette needle 38, the second pipette needle 39 and the third pipette needle 310 are fixedly installed between the connecting branches 37 respectively. The first pipette needle 38, the second pipette needle 39 and the third pipette needle 310 are connected to the three connecting branches 37 respectively through silicone hoses 311. An adjustment mechanism 3 and other structures are provided for facilitating the replacement of pipette needles, so that the pipette as a whole can be replaced with different pipette needles according to different situations when the user uses it. Compared with the traditional pipette, which needs to find different pipette needles and then load and unload them when using, the pipette is more convenient and quick to replace the needle.

[0024] Working Principle: Before using this pipette, first check the safety of the internal components of the pipette, then carry the pipette to the place of use and start using it;

[0025] When in use, first press the pre-detection structure 2 on the pipette into place, so that the interior of the liquid storage cavity 15 is in a sealed state, and then select the corresponding pipette needle to be used according to the food detection needs. When selecting a needle, first press the elastic limiting support 36 at the limiting hole 35 to release the fixed limit state between the mounting shell 31 and the fixing frame 33, and then rotate the mounting shell 31 to adjust the positions of the first pipette needle 38, the second pipette needle 39 and the third pipette needle 310 on the mounting shell 31, so that the appropriate pipette needle can be selected for use;

[0026] Then insert the needle part into the liquid in the food testing, and pull the fixed rod 17 outward to extract the food testing liquid into the liquid storage cavity 15 through the piston component 16. At this time, after observing that the scale bar 14 absorbs appropriate liquid, press the pre-test structure 2 to make the detection sensor module 24 enter the liquid storage cavity 15, perform a preliminary test on the extracted food liquid, and then place the pipette body for storage.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipette for food testing, comprising a pipette main structure (1), characterized in that: The main structure (1) of the pipette includes a liquid storage tank (11), a transparent observation window (13) is provided on the surface of the liquid storage tank (11), a scale bar (14) is pasted on the edge of the transparent observation window (13), a liquid storage cavity (15) is provided inside the liquid storage tank (11), a piston component (16) is provided inside the liquid storage cavity (15), one end of the piston component (16) is fixedly connected to a fixing rod (17), the other end of the fixing rod (17) is fixedly connected to a first lifting component (18), the other end of the liquid storage tank (11) is fixedly connected to a connecting pipe joint (19), a pre-detection structure (2) is fixedly installed on the surface of the main structure (1) of the pipette, and an adjustment mechanism (3) is fixedly installed on the bottom of the main structure (1), and the adjustment mechanism (3) includes a mounting shell (31).

2. A food testing pipette according to claim 1, characterized in that: The pre-detection structure (2) comprises a hollow pillar (21), one end of which extends to the outside of the liquid storage tank (11) and is fixedly connected to a second pulling component (22), and button batteries (23) and detection sensor modules (24) are respectively provided on both sides of the surface of the hollow pillar (21).

3. A food testing pipette according to claim 1, characterized in that: A rotating shaft (32) is rotatably mounted at the middle position of the mounting shell (31), a fixing frame (33) is fixedly mounted on the rotating shaft (32), one end of the fixing frame (33) is fixedly connected with a bolt component (34), and a threaded connection hole (12) that cooperates with the bolt component (34) is opened at the bottom of the liquid storage tank (11).

4. A food testing pipette according to claim 1, characterized in that: Elastic limiting pillars (36) are fixedly mounted on the surface of the mounting shell (31), and there are three elastic limiting pillars (36) in total. Each of the elastic limiting pillars (36) is composed of a return spring and a pillar. A limiting hole (35) that cooperates with the elastic limiting pillar (36) is opened on the surface of the fixing frame (33).

5. A food testing pipette according to claim 1, characterized in that: The circumferential surface of the mounting housing (31) is fixedly mounted with connecting branches (37) at equal intervals. There are three connecting branches (37) in total. A first pipette needle (38), a second pipette needle (39) and a third pipette needle (310) are fixedly mounted between the connecting branches (37). The first pipette needle (38), the second pipette needle (39) and the third pipette needle (310) are connected to the three connecting branches (37) via silicone hoses (311).

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