CN219898208U - Anti-pollution single-channel pipettor - Google Patents

Abstract

The utility model discloses an anti-pollution single-channel pipette which comprises an outer shell, wherein a display window is arranged at the bottom of the front end of the outer shell, a gun head connector is fixedly connected to the bottom of the outer shell, a liquid suction gun head is fixedly connected to the bottom of the gun head connector, and an overflow reminding structure is arranged in the liquid suction gun head. This anti-pollution single-channel pipettor is through being provided with imbibition rifle head, deposit liquid pipe and test paper circle that discolours, during the use, deposit liquid pipe in imbibition rifle head is with liquid save wherein, move imbibition rifle head to another container department then, press the piston button once more, liquid in the deposit liquid pipe is discharged promptly, when the excessive liquid that overflows from depositing the liquid pipe of single suction, the test paper circle that discolours in the imbibition rifle head is soaked by liquid and is taken place discolour, operating personnel can see directly perceivedly, in time adjust operating strategy or change the rifle head can, the function of overflowing the warning has been realized, the problem that the device does not possess the function of overflowing the warning is solved.

Description

Anti-pollution single-channel pipettor

Technical Field

The utility model relates to the technical field of single-channel pipettors, in particular to an anti-pollution single-channel pipettor.

Background

A pipette, also called a pipette, is a metering tool that removes liquid from an original container into another container over a range of ranges. The single-channel pipette has only one pipette channel, can only operate one liquid, can effectively avoid cross contamination among solutions, and has wide application in the fields of biology, chemistry, medicine and the like.

The current common single-channel pipettors on the market are mostly similar in structure, take an engineering plastic shell as a main body, can be gripped by one hand, have a piston pressing rod at the top, have a gun head withdrawing button at the side, clamp the gun head through an elastic material at the bottom, absorb liquid to migrate through the piston, have certain functional defects in the actual use process, have certain improvement spaces, and have the design of overflow liquid collection as the current single-channel pipettors, but operators do not feel when overflowed, can influence the accuracy of subsequent pipetting when the overflow liquid is more and more, and do not have the function of overflow reminding; secondly, when some liquids with stronger volatility are operated, the volatilized solution easily enters the inside of the liquid transfer device along the pipeline, so that the pollution to the internal parts is caused, the corrosion of the parts such as the spring is accelerated, and the liquid volatilization prevention function of the pipeline is not realized; in addition, in a laboratory environment, tools such as a liquid dispenser need to perform functional information labeling, and the current solution is to attach a handwritten label to a liquid dispenser shell, but the problems that the label is easy to be fuzzy and fall off due to hand friction during operation are solved, and the tool does not have the function of easily labeling information.

At present, a novel anti-pollution single-channel pipettor is provided for solving the problems.

Disclosure of Invention

The utility model aims to provide an anti-pollution single-channel pipette, so as to solve the problem that the background technology does not have the overflow reminding function.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an anti-pollution single-channel pipettor, includes the shell body, the bottom of shell body front end is provided with the display window, the bottom fixedly connected with rifle head connects the mouth of shell body, the inside of rifle head connects the mouth is provided with interior pipe wall, the inside of rifle head connects the mouth and the outside of interior pipe wall before vertical installation drive tube, the bottom fixedly connected with imbibition rifle head of rifle head connects the mouth, the top of shell body one side is provided with rifle head and withdraws from the button, the vertical grafting in top of shell body has the piston button, the inside vertical installation external screw thread pipe of interior pipe wall, the top of shell body front end is provided with the embedded groove, the top of embedded groove is provided with the sled groove, the inside of imbibition rifle head is provided with the overflow warning structure.

The overflow reminding structure comprises a liquid storage pipe, wherein the liquid storage pipe is vertically arranged at the bottom end of the inside of the liquid suction gun head, and a plurality of groups of color-changing test paper rings are transversely arranged between the outer wall of the liquid storage pipe and the inner wall of the liquid suction gun head.

Preferably, the inner pipe wall, the liquid sucking gun head and the liquid storage pipe are communicated.

Preferably, the color-changing test paper rings are arranged at equal intervals.

Preferably, the outer diameter of the externally threaded pipe is matched with the inner diameter of the inner pipe wall, and the threads outside the externally threaded pipe are matched with the threads inside the inner pipe wall.

Preferably, the inside of the external thread pipe is transversely glued with a plurality of groups of isolation cotton cores, and small holes are uniformly formed in the isolation cotton cores.

Preferably, an acrylic sealing plate is horizontally arranged in the embedded groove, a printing paper surface is applied to the front end of the acrylic sealing plate, self-adhesive is uniformly coated on the rear end of the acrylic sealing plate, and the front end of the printing paper surface is consistent with the vertical surface where the front end of the outer shell is located.

Compared with the prior art, the utility model has the beneficial effects that: the anti-pollution single-channel pipettor not only realizes the function of overflow reminding, realizes the function of isolating and preventing liquid from volatilizing and entering a pipeline, but also realizes the function of easily marking information;

through being provided with the imbibition rifle head, deposit liquid pipe and color changing test paper circle, during the use, the user holds the shell body with one hand, rotate the piston button adjustment range, the display window can direct observation numerical value, then press the piston button, connect the rifle head mouth to imbibition rifle head, imbibition rifle head is visited into solution, release the piston button, under the promotion of inside spring component, the piston button resets and simultaneously inhales liquid into imbibition rifle head, deposit liquid pipe in the imbibition rifle head is with liquid save wherein, then move imbibition rifle head to another container department, press the piston button again, liquid in the deposit liquid pipe is discharged, when the excessive liquid that once inhales wets from deposit liquid pipe overflows, color changing test paper circle in the imbibition rifle head is soaked by liquid and is changed color, operating personnel can directly perceived, adjust operation strategy or change the rifle head in time can, the function of overflow reminding has been realized;

when the liquid is pumped, if the liquid is a solution with strong volatility, the external thread pipe is screwed in along the inner pipe wall inside the nozzle of the gun head before the gun head is connected, then the gun head is connected for transferring the solution, the multi-layer isolation cotton core inside the external thread pipe can filter air, the volatile part of the solution is intercepted, the probability of corrosion of a part caused by the volatile part entering the device is reduced, the liquid is prevented from flowing in when the liquid transfer device is in a reverse place, and the function of preventing the liquid from volatilizing and entering through pipeline isolation is realized;

through being provided with embedded groove, printing paper face, ya keli closing plate, non-setting adhesive and sled groove, during the use, according to the use information of pipettor, with the information through printing equipment preprint on the printing paper face, follow the laminating of printing paper face into the embedded groove in, the non-setting adhesive at printing paper face back can prevent that the paper face from droing, the yakeli closing plate of printing paper face front end then protects the paper face, avoids causing the information to blur to lose, only need insert the one end of tweezers along the sled groove when needs change, upwarp can be with the printing paper face scratch out, has realized the function of easily marking information.

Drawings

FIG. 1 is a schematic elevational view of the present utility model;

FIG. 2 is an enlarged partial sectional schematic view of the front end of the pipette tip of the present utility model;

FIG. 3 is an enlarged partial cross-sectional schematic view of the gun head and nozzle of the present utility model;

fig. 4 is an enlarged partial sectional view of the printed paper of the present utility model.

In the figure: 1. an outer housing; 2. displaying a window; 3. a gun head joint mouth; 4. an inner tube wall; 5. a transmission tube; 6. a liquid suction gun head; 7. a liquid storage tube; 8. a color-changing test paper ring; 9. an external threaded tube; 10. isolating the cotton core; 11. an embedding groove; 12. printing a paper surface; 13. an acrylic sealing plate; 14. pressure sensitive adhesive; 15. prying grooves; 16. a gun head exit button; 17. a piston button.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1: referring to fig. 1-4, the anti-pollution single-channel pipette comprises an outer shell 1, wherein a display window 2 is arranged at the bottom of the front end of the outer shell 1, a gun head joint 3 is fixedly connected at the bottom of the outer shell 1, an inner pipe wall 4 is arranged in the gun head joint 3, a transmission pipe 5 is vertically arranged in the gun head joint 3 and in front of the outer part of the inner pipe wall 4, a liquid suction gun head 6 is fixedly connected at the bottom end of the gun head joint 3, a gun head withdrawing button 16 is arranged at the top of one side of the outer shell 1, a piston button 17 is vertically inserted at the top of the outer shell 1, and a liquid overflow reminding structure is arranged in the liquid suction gun head 6;

referring to fig. 1-4, the anti-pollution single-channel pipette further comprises an overflow reminding structure, wherein the overflow reminding structure comprises a liquid storage tube 7, the liquid storage tube 7 is vertically arranged at the bottom end inside the liquid suction gun head 6, and a plurality of groups of color-changing test paper rings 8 are transversely arranged between the outer wall of the liquid storage tube 7 and the inner wall of the liquid suction gun head 6;

the inner tube wall 4, the liquid suction gun head 6 and the liquid storage tube 7 are communicated, and the color-changing test paper rings 8 are arranged at equal intervals, so that the color can be changed rapidly when overflowed, and the color-changing test paper is convenient for a user to know;

specifically, as shown in fig. 1 and 2, the liquid storage tube 7 in the liquid suction gun head 6 stores liquid therein, then the liquid suction gun head 6 is moved to another container, the piston button 17 is pressed again, the liquid in the liquid storage tube 7 is discharged, when excessive liquid in single suction overflows from the liquid storage tube 7, the color-changing test paper ring 8 in the liquid suction gun head 6 is soaked by the liquid to change color, and an operator can intuitively see the color-changing test paper ring and adjust the operation strategy or replace the gun head in time.

Example 2: the inside of the inner pipe wall 4 is vertically provided with an external thread pipe 9, the outer diameter of the external thread pipe 9 is matched with the inner diameter of the inner pipe wall 4, the threads outside the external thread pipe 9 are matched with the threads inside the inner pipe wall 4, the inside of the external thread pipe 9 is transversely glued with a plurality of groups of isolation cotton cores 10, and small holes are uniformly formed in the isolation cotton cores 10, so that volatile substances can be prevented from entering, and the liquid inflow probability is reduced;

specifically, as shown in fig. 1 and 3, the external thread tube 9 is screwed in along the inner tube wall 4 inside the gun head connector 3, then the gun head is connected for solution transfer, the multi-layer isolation cotton core 10 inside the external thread tube 9 can filter air, intercept the volatilized part of the solution, reduce the probability of corrosion of components caused by the volatilized part entering the equipment, and prevent the liquid from flowing in when the liquid dispenser falls down.

Example 3: the top of the front end of the outer shell 1 is provided with an embedded groove 11, the top of the embedded groove 11 is provided with a prying groove 15, an acrylic sealing panel 13 is horizontally arranged in the embedded groove 11, the front end of the acrylic sealing panel 13 is coated with a printing paper surface 12, the rear end of the acrylic sealing panel 13 is uniformly coated with a self-adhesive 14, the front end of the printing paper surface 12 is consistent with the vertical surface of the front end of the outer shell 1, and the use information is conveniently marked;

specifically, as shown in fig. 1 and 3, the printing paper 12 is attached to the embedding groove 11, the self-adhesive 14 on the back of the printing paper 12 can prevent the paper from falling off, the acrylic sealing panel 13 on the front end of the printing paper 12 protects the paper from information fuzzy loss, and when the paper needs to be replaced, one end of the tweezers is only required to be inserted along the prying groove 15, and the printing paper 12 can be pulled out by tilting upwards.

Working principle: when the liquid sucking gun is used, firstly, a user holds the outer shell 1 by one hand, rotates the piston button 17 to adjust the measuring range, the display window 2 can directly observe the numerical value, then presses the piston button 17, the gun head connector 3 is connected with the liquid sucking gun head 6, the liquid sucking gun head 6 is immersed into a solution, the piston button 17 is released, the piston button 17 is reset and simultaneously sucks liquid into the liquid sucking gun head 6 under the pushing of an internal spring component, the liquid storage tube 7 in the liquid sucking gun head 6 stores the liquid, then the liquid sucking gun head 6 is moved to another container, the piston button 17 is pressed again, the liquid in the liquid storage tube 7 is discharged, when excessive liquid sucked in one time overflows from the liquid storage tube 7, the color-changing test paper ring 8 in the liquid sucking gun head 6 is soaked by the liquid to be changed in color, the liquid can be visually seen by an operator, and the operation strategy can be adjusted in time or the gun head can be replaced. When the liquid is pumped, if the liquid is a solution with stronger volatility, the external thread pipe 9 is screwed in along the inner pipe wall 4 inside the gun head connector 3 before the gun head is connected, then the gun head is connected for solution transfer, the multi-layer isolation cotton core 10 inside the external thread pipe 9 can filter air, the volatilized part of the solution is intercepted, the probability of corrosion of parts caused by the fact that the volatilized part enters the equipment is reduced, and the liquid can be prevented from flowing in when the liquid transfer device is in a pouring state. According to the application information of the pipettor, the information is preprinted on the printing paper surface 12 through printing equipment, then the printing paper surface 12 is attached into the embedded groove 11, the self-adhesive 14 on the back surface of the printing paper surface 12 can prevent the paper surface from falling off, the acrylic sealing panel 13 at the front end of the printing paper surface 12 protects the paper surface, the information is prevented from being lost in a fuzzy manner, and when the information needs to be replaced, one end of tweezers is only required to be inserted along the prying groove 15, and the printing paper surface 12 can be pulled out by tilting upwards.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. Anti-pollution single-channel pipettor, including shell body (1), its characterized in that: the automatic liquid sucking device is characterized in that a display window (2) is arranged at the bottom of the front end of the outer shell (1), a gun head joint (3) is fixedly connected to the bottom of the outer shell (1), an inner pipe wall (4) is arranged in the gun head joint (3), a transmission pipe (5) is vertically arranged in front of the inside of the gun head joint (3) and the outside of the inner pipe wall (4), a liquid sucking gun head (6) is fixedly connected to the bottom of the gun head joint (3), a gun head withdrawing button (16) is arranged at the top of one side of the outer shell (1), a piston button (17) is vertically inserted into the top of the outer shell (1), an outer threaded pipe (9) is vertically arranged in the inside of the inner pipe wall (4), an embedded groove (11) is formed in the top of the front end of the outer shell (1), a liquid sucking reminding structure is arranged in the inside of the liquid sucking gun head (6);

the overflow reminding structure comprises a liquid storage pipe (7), wherein the liquid storage pipe (7) is vertically arranged at the bottom end inside the liquid suction gun head (6), and a plurality of groups of color-changing test paper rings (8) are transversely arranged between the outer wall of the liquid storage pipe (7) and the inner wall of the liquid suction gun head (6).

2. The anti-contamination single-channel pipette of claim 1, wherein: the inner pipe wall (4), the liquid sucking gun head (6) and the liquid storage pipe (7) are communicated.

3. The anti-contamination single-channel pipette of claim 1, wherein: the color-changing test paper rings (8) are arranged at equal intervals.

4. The anti-contamination single-channel pipette of claim 1, wherein: the external diameter of the external thread pipe (9) is matched with the internal diameter of the inner pipe wall (4), and the threads outside the external thread pipe (9) are matched with the threads inside the inner pipe wall (4).

5. The anti-contamination single-channel pipette of claim 1, wherein: the inside of the external thread pipe (9) is transversely glued with a plurality of groups of isolation cotton cores (10), and small holes are uniformly formed in the isolation cotton cores (10).

6. The anti-contamination single-channel pipette of claim 1, wherein: an acrylic sealing plate (13) is horizontally arranged in the embedded groove (11), a printing paper surface (12) is coated at the front end of the acrylic sealing plate (13), self-adhesive (14) is uniformly coated at the rear end of the acrylic sealing plate (13), and the front end of the printing paper surface (12) is consistent with the vertical surface where the front end of the outer shell (1) is located.