CN217527537U

CN217527537U - Liquid-transfering gun with anti-pollution structure

Info

Publication number: CN217527537U
Application number: CN202220671983.1U
Authority: CN
Inventors: 刘琪琪; 陈佳
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-10-04
Anticipated expiration: 2032-03-25

Abstract

The utility model provides a pipetting gun with anti-pollution structure belongs to the pipetting gun technical field that biochemical experiments used, including the pipetting gun body, the one end of pipetting gun body is provided with the air duct that is used for the drive to move the liquid, and the end of air duct is provided with the sleeve that is used for connecting the pipetting gun head, and the end of air duct is provided with the silk head, and the air duct passes through the silk head to be connected with sleeve screw-thread fit, and the end of silk head is provided with the plush copper, and the terminal cover of plush copper is equipped with the latex bubble, and the latex bubble cover is established still to overlap and is equipped with the hoop cover in the one end of plush copper, has solved the pipetting gun in the past and has taken place cross contamination's problem when moving liquid to volatile material, the utility model discloses rational in infrastructure, inside getting into the pipetting gun when effectively preventing volatile material from moving the liquid, prevent cross contamination.

Description

Liquid-transfering gun with anti-pollution structure

Technical Field

The utility model belongs to the technical field of liquid-transfering guns for biochemical experiments, in particular to a liquid-transfering gun with an anti-pollution structure.

Background

The pipette is one of pipettors, is commonly used for pipetting a small amount of or trace liquid in a laboratory, has different specifications, is matched with pipette heads of different sizes, has slightly different shapes produced by different manufacturers, and basically has the same working principle and operation method. The liquid-transfering gun belongs to a precise instrument, and is carefully used and stored, so that damage is prevented, and the measuring range is prevented from being influenced.

Most of the liquid-transferring guns used in the laboratory at present are an air cushion sample injector and an air cushion sample injector, and the two liquid-transferring guns adopt aerodynamic force as a support to generate negative pressure on an air duct so as to ensure that the gun head can absorb liquid; 1. however, when the liquid-transfering gun is used for sucking some volatile substances, the volatile substances enter the air duct to further pollute the interior of the liquid-transfering tube; 2. and the interior of the liquid transfer tube can not be cleaned, so that the volatile substances can be discharged through the air guide tube again when the liquid transfer gun is used for the second time, and further the substances which are being transferred are polluted, and therefore, a liquid transfer gun with an anti-pollution structure is urgently needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a liquid-transfering gun with anti-pollution structure to solve the problem that proposes in the above-mentioned background art, the utility model discloses it is rational in infrastructure, inside effectively preventing that volatile material from getting into liquid-transfering gun when moving the liquid, preventing cross contamination.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides a pipette with anti-pollution structure, includes the pipette body, the one end of pipette body is provided with the air duct that is used for the drive to move the liquid, the end of air duct is provided with the sleeve that is used for connecting the pipette rifle head, the end of air duct is provided with the stub, the air duct passes through the stub and is connected with sleeve screw-thread fit, the end of stub is provided with the plush copper, the terminal cover of plush copper is equipped with the latex bubble, the one end of plush copper cover at the plush copper is still overlapped and is equipped with the hoop cover.

Further, the sleeve is of a conical structure, and two ends of the sleeve penetrate through the sleeve.

Further, the outside cover of telescopic is equipped with anti-skidding gum cover, the surface of anti-skidding gum cover is provided with dull polish line.

Furthermore, the insides of the screw head and the raised head are hollow structures, and the screw head is communicated with the raised head.

Furthermore, the outer wall of the raised head is also provided with an anti-skid convex pattern.

Furthermore, the latex foam is made of latex, and the inner diameter of the latex foam sleeved at one end of the raised head is 0.5-2mm smaller than the diameter of the raised head.

Further, the length of the latex bubble is less than the length of the sleeve.

Furthermore, the material of cuff is the silica gel material, the thickness of cuff is less than the interval between plush copper outer wall to the sleeve inner wall.

The utility model has the advantages that:

1. the air duct of the utility model is connected with the sleeve by the screw thread matching through the screw head, the sleeve adopts the detachable design, and can be detached to clean the inside and the outside after each pipetting, thereby preventing volatile substances from remaining in the sleeve; the outer part of the sleeve is sleeved with an anti-skid rubber sleeve for sealing and connecting the pipette head of the pipette;

2. the inner parts of the silk head and the raised head of the utility model are hollow structures, the tail end of the raised head is sleeved with the latex foam, the outer wall of the raised head is also provided with the anti-skid convex pattern, and the latex foam is sleeved on the raised head, so that the risk of volatile substances entering the air duct is prevented by adding the latex foam;

3. the utility model discloses produce the negative pressure effect in the air duct, the volume of latex bubble changes along with it, and then produces the same negative pressure in the sleeve with the air duct.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of a pipette with an anti-contamination structure according to the present invention;

FIG. 2 is a partial cross-sectional view of a pipette with anti-contamination features of the present invention;

FIG. 3 is an enlarged view of A in FIG. 2;

FIG. 4 is a schematic diagram of the liquid-transfering gun with an anti-pollution structure according to the present invention;

in the figure: 1 liquid-transfering gun body, 2 air ducts, 21 silk heads, 22 raised heads, 221 anti-slip convex lines, 3 sleeves, 31 anti-slip rubber sleeves, 4 latex bubbles, 5 hooping sleeves and 6 gun heads.

Detailed Description

In order to make the utility model realize, the technical means, the creation characteristics, the achievement purpose and the efficacy are easy to understand and understand, the utility model is further explained by combining the specific implementation mode.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a pipetting gun with anti-pollution structure, including pipetting gun body 1, pipetting gun body 1's one end is provided with the air duct 2 that is used for the drive to move the liquid, the end of air duct 2 is provided with the sleeve 3 that is used for connecting pipetting gun rifle head 6, the end of air duct 2 is provided with silk 21, air duct 2 is connected through

silk

21 and 3 screw-thread fit of sleeve, the end of silk 21 is provided with plush copper 22, plush copper 22's terminal cover is equipped with latex bubble 4, latex bubble 4 covers and is established still to overlap and be equipped with hoop cover 5 in plush copper 22's one end, the problem of cross contamination takes place easily when having solved pipetting gun in the past to volatile material.

The air duct 2 of the utility model is connected with the sleeve 3 through the screw thread matching of the screw head 21, the sleeve 3 is a cone-shaped structure, the two ends of the sleeve 3 run through, the sleeve 3 adopts the detachable design, and can be detached to clean the inside and the outside after each liquid transfer, so as to prevent volatile substances from remaining in the sleeve 3; the outside cover of sleeve 3 is equipped with anti-skidding gum cover 31, and the surface of anti-skidding gum cover 31 is provided with the dull polish line for sealing connection pipetting gun rifle head 6.

The utility model discloses an inside of silk head 21 and plush copper 22 is hollow out construction, and the terminal cover of plush copper 22 is equipped with latex bubble 4, and silk head 21 link up each other with plush copper 22, still is provided with anti-skidding burr 221 on plush copper 22's the outer wall, establishes latex bubble 4 through the cover on plush copper 22, and latex bubble 4's addition has prevented the risk that volatile material got into in the air duct 2.

The utility model discloses a material of latex bubble 4 is latex, and 4 covers of latex bubble are established the internal diameter that is less than plush 22 diameter 0.5-2mm in plush 22 one end, and the length of latex bubble 4 is less than sleeve 3's length, produces the negative pressure effect in air duct 2, and the volume of latex bubble 4 changes along with it, and then produces in the messenger sleeve 3 with air duct 2 the same negative pressure.

The utility model discloses a material of cuff 5 is the silica gel material, and the thickness of cuff 5 is less than the interval between plush copper 22 outer wall to 3 inner walls of sleeve, and the addition of cuff 5 is used for sealed cramping emulsion bubble 4 and plush copper 22, and makes things convenient for the dismantlement washing of emulsion bubble 4.

As an embodiment of the present invention: during liquid transfer operation, sleeving a liquid transfer gun head 6 on a hoop sleeve 5, probing the gun head 6 into a reagent to be transferred, generating negative pressure on an air guide tube 2 through a liquid transfer gun body 1, changing the volume of a latex bubble 4 along with the change of the volume of the latex bubble, further generating the same negative pressure in a sleeve 3 as that in the air guide tube 2, further generating the same negative pressure in the gun head 6, quantitatively absorbing and transferring liquid by the gun head 6, transferring the liquid transfer in the gun head 6 to a designated container, and finally taking down the gun head 6;

after the gun head 6 is taken down, the sleeve 3 is screwed off in a rotating mode, the inner wall and the outer wall of the sleeve 3 are cleaned, the hoop sleeve 5 is taken down, the latex bubble 4 is cleaned, and finally the latex bubble 4 and the sleeve 3 are installed on the air guide tube 2 again, so that the easily volatile substances are effectively prevented from entering the interior of the liquid transfer gun when liquid is transferred, and cross contamination is prevented.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention 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 invention 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a pipetting gun with anti-pollution structure, includes pipetting gun body (1), the one end of pipetting gun body (1) is provided with air duct (2) that are used for the drive to move liquid, its characterized in that: the tail end of the air guide pipe (2) is provided with a sleeve (3) used for being connected with a pipette gun head (6), the tail end of the air guide pipe (2) is provided with a screw head (21), the air guide pipe (2) is in threaded fit connection with the sleeve (3) through the screw head (21), the tail end of the screw head (21) is provided with a raised head (22), the tail end of the raised head (22) is sleeved with a latex bubble (4), and one end, sleeved on the raised head (22), of the latex bubble (4) is further sleeved with a hoop sleeve (5).

2. The pipette gun with contamination prevention feature of claim 1, wherein: the sleeve (3) is of a conical structure, and two ends of the sleeve (3) penetrate through the sleeve.

3. The pipette gun with contamination prevention feature of claim 2, wherein: the outside cover of sleeve (3) is equipped with anti-skidding gum cover (31), the surface of anti-skidding gum cover (31) is provided with the dull polish line.

4. The pipette gun with contamination prevention structure according to claim 1, wherein: the inner parts of the screw head (21) and the raised head (22) are hollow structures, and the screw head (21) and the raised head (22) are communicated with each other.

5. The pipette gun with contamination prevention feature of claim 1, wherein: the outer wall of the raised head (22) is also provided with an anti-skid convex pattern (221).

6. The pipette gun with contamination prevention feature of claim 1, wherein: the latex foam (4) is made of latex, and the inner diameter of one end, sleeved on the raised head (22), of the latex foam (4) is 0.5-2mm smaller than the diameter of the raised head (22).

7. The pipette gun with contamination prevention feature of claim 6, wherein: the length of the latex bubbles (4) is smaller than that of the sleeve (3).

8. The pipette gun with contamination prevention structure according to claim 1, wherein: the material of cuff (5) is the silica gel material, the thickness of cuff (5) is less than the interval between plush copper (22) outer wall to sleeve (3) inner wall.