CN212758676U

CN212758676U - Pipette suction head

Info

Publication number: CN212758676U
Application number: CN202021246559.XU
Authority: CN
Inventors: 张红宁; 张丹丹; 蔡敬敏; 张红攀
Original assignee: Zhengzhou Chuangsheng Bioengineering Co ltd
Current assignee: Zhengzhou Chuangsheng Bioengineering Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-03-23
Anticipated expiration: 2030-06-30

Abstract

The utility model relates to the technical field of laboratory equipment, in particular to a pipette tip, which comprises a tip and a fixer matched with the tip for use, wherein the tip comprises a tip end and a connecting end, the inner side of the connecting end is provided with a connecting ring, the connecting ring is symmetrically provided with raised fixing clamp holes, the fixer comprises a fixing piece, the fixing piece is symmetrically provided with an elastic piece, and the elastic piece is provided with a fixing clamp matched with the fixing clamp holes for use; the utility model realizes the quick connection and removal of the suction head and the liquid transfer device by arranging the fixer matched with the suction head outside the liquid transfer device and pinching or loosening the elastic sheet; the connection process is more labor-saving, the removal process is not labor-saving, the reagent remained in the pipette tip is not splashed into the external environment, and the use process is more environment-friendly; the suction head is provided with the fixing clamp hole, the outer part of the fixing clamp hole is in a frustum shape, and the connecting surfaces of the fixing clamp hole and the connecting ring are all inclined planes, so that the suction head is more convenient to mount and remove.

Description

Pipette suction head

Technical Field

The utility model relates to a laboratory equipment technical field, concretely relates to pipettor suction head.

Background

A pipette is an instrument that is often used in an experiment or assay process in the fields of chemistry, biology, medical treatment, etc., and a pipette tip is a device that is used in cooperation with a pipette. In use, multiple collections are often required, requiring multiple pipette tips to be replaced.

At present, most pipette tips are placed in a pipette tip box, and when the pipette tip box is used, a tip fixing end of a pipette is aligned with the pipette tip and is inserted into the pipette tip; then, the pipettor needs to be shaken left and right for many times in the connection process, so that the pipettor is more contacted with a pipette tip under the action of external force, and the connection is tighter; when the pipette tip is removed, the pipette tip also needs to be pulled out by a large external force, and reagents remaining in the pipette tip can be splashed into the external environment in the pulling process, so that the use process is troublesome and is not environment-friendly; therefore, how to overcome the above technical problems and disadvantages is a problem to be solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects of the prior art and providing a pipette tip with good separation effect and convenient loading and unloading.

In order to achieve the purpose of the invention, the technical scheme of the utility model is as follows: the utility model provides a pipettor suction head, includes the suction head and with the supporting fixer that uses of suction head, the suction head includes suction head end and link, the inboard of link is provided with the go-between, the symmetry is provided with bellied fixing clip hole on the go-between, the fixer includes the stationary blade, the symmetry is provided with the flexure strip on the stationary blade, be provided with on the flexure strip with the supporting fixed dop that uses in fixing clip hole.

Further, the fixer is fixedly arranged outside the liquid transfer device, and a suction nozzle, a suction head fixing end and a transition connecting piece are sequentially arranged at the liquid suction end of the liquid transfer device.

Furthermore, the one end that flexure strip and stationary blade are connected sets up in the outside of suction head stiff end, the one end that flexure strip and stationary blade do not connect sets up in the outside of transition connection spare.

Furthermore, the outside of the fixing clamp hole is in a frustum shape, so that the connecting surfaces of the fixing clamp hole and the connecting ring are inclined planes, the fixing clamping head on the elastic sheet is conveniently and quickly clamped with the fixing clamp hole, and the suction head is conveniently removed.

The utility model discloses a pipettor suction head's beneficial effect is:

1. the utility model discloses a pipette tip, through setting up the fixer used with the suction tip in the pipettor outside, through pinching or not hard up the elastic sheet, realize the suction tip and the quick connection and removal of pipettor; the connection process is more labor-saving, the removal process is not labor-saving, the reagent remained in the pipette tip is not splashed into the external environment, and the use process is more environment-friendly;

2. the utility model discloses a pipettor suction head, set up the fixing clip hole on the suction head, the fixing clip hole outside is the frustum shape, makes the connecting surface of fixing clip hole and go-between all be the inclined plane, when the installation, is convenient for the fixed dop directly to slide to the fixing clip downthehole along the inclined plane, or also can directly slide to the fixing clip downthehole along the inclined plane when making the fixed dop rotate, makes things convenient for the fixed dop to fast joint with the fixing clip hole; when the sucker is removed, the upper surface of the fixed clamping head slides out along the inclined surface, so that the sucker and the fixer are quickly separated, and the installation and the removal of the sucker are more convenient.

Drawings

Fig. 1 is a view showing an installation structure of a pipette tip according to the present invention;

fig. 2 is a view of a tip configuration in a pipette tip of the present invention;

fig. 3 is a bottom view of a holder in a pipette tip of the present invention;

fig. 4 is a view showing a structure of a pipette in a pipette tip of the present invention;

FIG. 5 is an enlarged view of A in FIG. 1;

wherein: 1-suction head, 11-suction head end, 12-connecting end, 13-connecting ring, 14-fixing clamp hole, 2-fixer, 21-elastic sheet, 22-fixing clamp, 23-fixing sheet, 3-pipettor, 31-suction nozzle, 32-suction head fixing end and 33-transition connecting piece.

Detailed Description

The pipette tip of the present invention will be described in more detail below with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1 to 5, a pipette tip includes a tip 1 and a holder 2 used in cooperation with the tip 1. The suction head 1 comprises a suction head end 11 and a connecting end 12, the suction head end 11 and the connecting end 12 are of an integrally formed structure, the suction head end 11 is relatively slender, and the connecting end 12 is matched with the fixer 2 for use; the inner side of the connecting end 12 is provided with the connecting ring 13, and the inner surface of the connecting ring 13 is smooth, so that the friction force between the fixed chuck 22 and the inner surface of the connecting ring 13 can be reduced, the fixed chuck 22 can be conveniently rotated, and the position can be conveniently adjusted. The go-between 13 is gone up the symmetry and is provided with bellied fixing clip hole 14, and fixing clip hole 14 outside is the frustum shape to make fixing clip hole 14 all be the inclined plane with the face of being connected of go-between 13, the fixed dop 22 on the flexure strip 21 of being convenient for and the quick joint in fixing clip hole 14, and conveniently remove suction head 1.

As shown in fig. 2-5, the fixer 2 includes a fixing plate 23, the fixing plate 23 is a ring-shaped metal plate, the fixing plate 23 is symmetrically provided with elastic plates 21, and the elastic plates 21 are provided with fixing clips 22 used in cooperation with the fixing clip holes 14. The thickness of the elastic piece 21 is smaller than that of the fixing piece 23, and the thickness of the elastic piece 21 is the same as that of the fixing clip 22 and that of the fixing piece 23, thereby facilitating the quick separation of the fixing clip 22 from the fixing clip hole 14. The fixed chuck 22 is in the shape of a frustum. The contact area between the fixing clip head 22 and the fixing clip hole 14 is large, so that a good clamping effect is achieved, and the connecting effect is enhanced. The fixer 2 is fixedly arranged outside the pipettor 3, and a suction nozzle 31, a suction head fixing end 32 and a transition connecting piece 33 are sequentially arranged at the suction end of the pipettor 3. The end of the elastic sheet 21 connected with the fixing sheet 23 is fixedly arranged outside the suction head fixing end 32, and the end of the elastic sheet 21 not connected with the fixing sheet 23 is arranged outside the transition connecting piece 33.

The utility model discloses a use method does: before use, the holder is secured to the fixed end of the cleaner head and to the transition piece. When in use, the elastic sheet is pinched, so that the free end of the elastic sheet is attached to the surface of the transition connecting piece; aligning the sucker fixed end of the pipette with the pipette sucker and inserting the pipette sucker into the pipette sucker; when the fixed chuck is not contacted with the fixed clamping hole, the pipettor can be rotated, so that the fixed chuck is clamped with the fixed clamping hole, then the elastic sheet is loosened, the elastic sheet is separated from the surface of the transition connecting piece, and the fixed chuck is tightly connected with the fixed clamping hole, so that pipetting can be carried out; after the liquid transfer is finished, the elastic sheet is pinched again, the liquid transfer device is pulled upwards, the suction head of the liquid transfer device can be separated from the liquid transfer device, and then the liquid transfer is carried out for the second time according to the steps.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" or "an" and the like in the description and in the claims of this application do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

The exemplary embodiments of the present invention have been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various modifications and changes may be made to the specific embodiments without departing from the concept of the present invention, and various combinations of the technical features and structures of the present invention may be implemented without departing from the scope of the present invention.

Claims

1. The utility model provides a pipettor suction head, includes the suction head and with the supporting fixer that uses of suction head, the suction head includes suction head end and link, its characterized in that: the fixer comprises a connecting end and a fixer, wherein the connecting end is provided with a connecting ring, the connecting ring is symmetrically provided with raised fixing clamp holes, the fixer comprises a fixing piece, the fixing piece is symmetrically provided with elastic pieces, and the elastic pieces are provided with fixing clamp heads matched with the fixing clamp holes for use.

2. The pipette tip of claim 1, wherein: the fixer is fixedly arranged outside the liquid transfer device, and the liquid suction end of the liquid transfer device is sequentially provided with a suction nozzle, a suction head fixing end and a transition connecting piece.

3. The pipette tip of claim 2, wherein: the one end setting that flexure strip and stationary blade are connected is in the outside of suction head stiff end, the one end setting that flexure strip and stationary blade do not connect is in transition connection's the outside.

4. The pipette tip of claim 1, wherein: the outer part of the fixing clamp hole is in a frustum shape.