CN214261942U - Backflow-preventing high-stability pipette - Google Patents

Abstract

The utility model discloses a high stable pipette against backflow, aiming at providing a pipette with good backflow prevention effect, simple structure and strong practicability, which is characterized in that a pipe body comprises a main body part, a suction head end arranged at one end of the main body part and an installation end arranged at the other end of the main body part, the installation end is used for connecting the pipette, the technical proposal adopts the structure arrangement, the structure is simple, the stability is strong, simultaneously, in order to improve the backflow prevention effect of the pipe body, the backflow prevention structure is arranged at the installation end, the backflow of liquid caused by misoperation is avoided, the backflow prevention structure is further arranged to comprise a placing platform arranged on the inner wall of the installation end, an extension pipe integrally connected with the placing platform and a filter element arranged on the placing platform and in the extension pipe, the placing platform is used as a carrier for placing the filter element, and the extension pipe can be connected with the pipette, the practicality is strong, simple structure, the utility model is suitable for a medical treatment detects utensil technical field.

Description

Backflow-preventing high-stability pipette

Technical Field

The utility model relates to a medical treatment detection utensil technical field, more specifically says, it relates to a prevent high stable pipette that flows backwards.

Background

A meter for accurately removing a volume of solution. A pipette is a type of measurement instrument that is used only to measure the volume of solution it emits. It is a slender glass tube with an expansion part in the middle. The lower end of the tube is in a sharp mouth shape, and a marking line is carved on the upper end tube and is a mark of the accurate volume.

At present, pipettes are on the market, which comprise a tube body. Traditional pipette when cooperation pipettor got liquid, can lead to the liquid refluence because of misoperation to lead to the cross infection of pipettor, consequently how to improve the suck-back prevention ability of pipette is the problem that exists at present.

Disclosure of Invention

Not enough to prior art exists, the utility model aims to provide a prevent pipette that refluence is effectual, simple structure and practicality are strong.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a prevent high stable pipette that flows backwards, includes the body, the body includes the main part, sets up in the suction head end of main part one end and sets up in the installation end of the main part other end, and the installation end is used for connecting the pipettor, installation end department is equipped with prevents the backflow structure, prevent the backflow structure including set up place the platform on the installation end inner wall, with place a body coupling's extension pipe and arrange in place the bench and set up the filter core in the extension pipe, it is equipped with through-hole and body intercommunication to place the bench.

By adopting the technical scheme, the pipe body comprises a main body part, a suction head end arranged at one end of the main body part and a mounting end arranged at the other end of the main body part, the mounting end is used for connecting a liquid transfer device, the structure is simple, the stability is strong, meanwhile, in order to improve the anti-backflow effect of the pipe body, the backflow prevention structure is arranged at the mounting end, the backflow of liquid caused by misoperation is avoided, so that the cross infection is formed on the liquid transfer device, the backflow prevention structure is further arranged to comprise a placing platform arranged on the inner wall of the mounting end, an extension pipe integrally connected with the placing platform and a filter element arranged on the placing platform and arranged in the extension pipe, the placing platform is used as a carrier for placing the filter element, the extension pipe can be connected with the liquid transfer device, the practicability is strong, the structure is simple, and the flowing range of air flow is improved through a through hole which is arranged on the placing platform and communicated with the pipe body, is convenient for taking liquid and has strong practicability.

The utility model discloses further set up to: the placing table comprises a table body structure and a plurality of connectors arranged along the table body structure, and the through holes are gaps between two adjacent connectors.

Through adopting above-mentioned technical scheme, place the platform and include stage structure and along a plurality of connectors of stage structure setting, the connector has then improved the stability of being connected between placing platform and the extension pipe to set up the through-hole into the space of two adjacent connectors, increased the flow area of air current, it is strong to get material stability, simple structure.

The utility model discloses further set up to: the width of the connecting body is gradually reduced from the extension pipe to the direction of the table body structure.

Through adopting above-mentioned technical scheme, the width of connector is reduced gradually toward stage body structure direction by the extension pipe, adopts above-mentioned structure setting, then connects the stage body structure through the connector and places the joint strength between the platform, but because the area of contact that the connector is located extension pipe one side is bigger, makes the stress point of connector concentrate on the extension pipe, and then has ensured good structural stability, and the practicality is strong, simple structure.

The utility model discloses further set up to: be equipped with the spacing limit structure to the filter core in the extension pipe, this limit structure includes that one side is equipped with guide structure in the opposite side of annular retaining ring in the annular retaining ring that the filter core was contradicted.

Through adopting above-mentioned technical scheme, be equipped with the spacing structure spacing to the filter core in the extension pipe, this spacing structure includes one side in the annular retaining ring that the filter core contradicted, and the opposite side of annular retaining ring is equipped with guide structure, through spacing structure cooperation guide structure, carries out formation conflict after installing to the filter core through spacing structure, prevents that the filter core from taking place to remove, and guide structure is the installation of the filter core of then being convenient for, and the practicality is strong, simple structure.

The utility model discloses further set up to: the guide structure comprises an extension body connected with the annular retainer ring, and the thickness of the extension body is gradually reduced from the annular retainer ring to the direction of the pipe orifice of the extension pipe.

Through adopting above-mentioned technical scheme, guide structure includes the extension body of being connected with annular retaining ring, sets up guide structure for including the extension body of being connected with annular retaining ring, then has formed the direction installation effect to the filter core, and the practicality is strong to because the thickness of extension body reduces gradually by annular retaining ring toward the mouth of pipe direction of extension pipe, then when the filter core is installed, then forms the effect of fastening gradually, until the complete installation of filter core, the practicality is strong, simple structure.

Drawings

Fig. 1 is a schematic diagram of a partial cross-sectional structure of an embodiment of a backflow prevention high stability pipette of the present invention.

Fig. 2 is an enlarged schematic view of a structure at a position a in fig. 1 of an embodiment of the anti-backflow high-stability pipette of the present invention.

Reference numeral in the figure, 1, a tube body; 10. a body portion; 11. a suction end; 12. an installation end; 20. a placing table; 201. a platform body structure; 202. a linker; 21. an extension pipe; 210. an annular retainer ring; 211. an extension body; 3. and (3) a filter element.

Detailed Description

An embodiment of the anti-backflow high stability pipette of the present invention is further described with reference to fig. 1 to 2.

Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.

A backflow-preventing high-stability pipette comprises a tube body 1, wherein the tube body 1 comprises a main body part 10, a suction head end 11 arranged at one end of the main body part 10 and a mounting end 12 arranged at the other end of the main body part 10, the mounting end 12 is used for connecting a pipette, the structure is simple, the stability is high, meanwhile, in order to improve the backflow-preventing effect of the tube body 1, the backflow-preventing structure is arranged at the mounting end 12, backflow of liquid caused by misoperation is avoided, so that cross infection is formed on the pipette, the backflow-preventing structure is further arranged to comprise a placing table 20 arranged on the inner wall of the mounting end 12, an extension pipe 21 integrally connected with the placing table 20 and a filter element 3 arranged on the placing table 20 and in the extension pipe 21, the placing table 20 is used as a carrier for placing the filter element 3, the extension pipe 21 can be connected with the pipette, the practicability is high, the structure is simple, and through the through-hole that communicates with body 1 that sets up on placing platform 20, then improved the flow range of air current, be convenient for get liquid, the practicality is strong.

The utility model discloses further set up to, place platform 20 and include stage structure 201 and along a plurality of connectors 202 that stage structure 201 set up, connector 202 has then improved the stability of being connected between placing platform 20 and extension pipe 21 to set up the through-hole into the space of double-phase adjacent connector 202, increased the flow area of air current, it is strong to get material stability, simple structure.

The utility model discloses further set up to, the width of connector 202 is reduced gradually by extension pipe 21 toward stage body structure 201 direction, adopts the above-mentioned structure setting, then connects stage body structure 201 and places the joint strength between the platform 20 through connector 202, but because the area of contact that connector 202 is located extension pipe 21 one side is bigger, makes the stress point of connector 202 concentrate on extension pipe 21, and then has ensured good structural stability, and the practicality is strong, simple structure.

The utility model discloses further set up to, be equipped with in the extension pipe 21 to the spacing limit structure of filter core 3, this limit structure includes one side in the annular retaining ring 210 that filter core 3 contradicted, and annular retaining ring 210's opposite side is equipped with guide structure, and through limit structure cooperation guide structure, go on to filter core 3 through limit structure and form the conflict after installing, prevent that filter core 3 from taking place to remove, and guide structure is then the installation of filter core 3 of being convenient for, and the practicality is strong, simple structure.

The utility model discloses further set up to, guide structure includes the extension body 211 of being connected with annular retaining ring 210, set up guide structure to include the extension body 211 of being connected with annular retaining ring 210, then formed the direction installation effect to filter core 3, therefore, the clothes hanger is strong in practicability, and because the thickness of extension body 211 is reduced gradually by annular retaining ring 210 toward the mouth of pipe direction of extension pipe 21, then when filter core 3 is installed, then form the effect of fastening gradually, until the complete installation of filter core 3, therefore, the clothes hanger is strong in practicability, and is simple in structure.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and the skilled in the art can carry out the common changes and replacements within the technical solution of the present invention.

Claims (5)

1. The utility model provides a prevent high stable pipette that flows backwards, includes body (1), its characterized in that, body (1) includes main part (10), sets up in suction end (11) of main part (10) one end and sets up in installation end (12) of main part (10) other end, and installation end (12) are used for connecting the pipettor, installation end (12) department is equipped with prevents the backflow structure, prevent the backflow structure including set up placing platform (20) on installation end (12) inner wall, with place extension pipe (21) of platform (20) body coupling and place in place on placing platform (20) and set up filter core (3) in extension pipe (21), it is equipped with through-hole and body (1) intercommunication on platform (20) to place.

2. The anti-backflow high-stability pipette according to claim 1, wherein the placement table (20) comprises a table body structure (201) and a plurality of connecting bodies (202) arranged along the table body structure (201), and the through hole is a gap between two adjacent connecting bodies (202).

3. The anti-backflow high stability pipette according to claim 2, wherein the width of the connecting body (202) is gradually reduced from the extension tube (21) to the stage body structure (201).

4. The anti-backflow high-stability pipette according to claim 1, wherein a limiting structure for limiting the filter element (3) is arranged in the extension pipe (21), the limiting structure comprises an annular retaining ring (210) abutting against the filter element (3) on one side, and a guiding structure is arranged on the other side of the annular retaining ring (210).

5. The anti-backflow high-stability pipette according to claim 4, wherein the guide structure comprises an extension body (211) connected with the annular retaining ring (210), and the thickness of the extension body (211) is gradually reduced from the annular retaining ring (210) to the direction of the nozzle of the extension tube (21).

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