CN215065483U

CN215065483U - Multi-capacity quantitative dripping and sucking pipe

Info

Publication number: CN215065483U
Application number: CN202120280700.6U
Authority: CN
Inventors: 李筱健; 汪刘周
Original assignee: Xiamen Huichuan Industry And Trade Co ltd
Current assignee: Xiamen Huichuan Industry And Trade Co ltd
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-12-07
Anticipated expiration: 2031-02-01

Abstract

The utility model provides a multi-capacity quantitative drip tube, which comprises a sleeve, a drip tube arranged on the sleeve, two ribs symmetrically arranged on the sleeve, and a capillary tube arranged between the two ribs; the inside of the capillary tube is provided with a through hole which penetrates through the capillary tube and is used for storing liquid, and the joint of the rib and the capillary tube is provided with a first open slot which is communicated with the through hole and is used for storing liquid. The utility model discloses a quantitative dripping straw passes through the rib and realizes the connection of pipe box and capillary, sets up first open slot moreover on the rib for the rib not only can play the connection fixed action, can also make whole dripping straw move liquid volume greatly increased, under the simple condition of overall structure, satisfies more demands.

Description

Multi-capacity quantitative dripping and sucking pipe

Technical Field

The utility model relates to a technical field of liquid sample, especially a multi-capacity quantitative drip pipe.

Background

With the popularization of semi-automatic analyzers in the field of medical biochemical inspection, micro quantitative sampling becomes a key point for the accuracy of inspection results. Due to the micro-scale detection of the sample, the detection is completed by a micro quantitative dropping pipette for sampling and a dropping device.

However, most of the existing quantitative pipette has a complicated structure, so the molds used for producing the quantitative pipette are also complicated, and the cost of the quantitative pipette is too high, and the storage capacity of the existing quantitative pipette is mostly only 5 uL-10 uL, so that the sampling requirement of large capacity is difficult to meet.

In view of the above, the present inventors have specifically designed a multi-volume pipette, and have resulted in this disclosure.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the technical scheme of the utility model is as follows:

a multi-capacity quantitative dripping pipe comprises a sleeve, a dripping pipe arranged on the sleeve, two ribs symmetrically arranged on the sleeve and a capillary arranged between the two ribs;

the inside of the capillary tube is provided with a through hole which penetrates through the capillary tube and is used for storing liquid, and the joint of the rib and the capillary tube is provided with a first open slot which is communicated with the through hole and is used for storing liquid.

Further, the capacity of the capillary tube is 15-30 microliter.

Further, the central axes of the sleeve, the dropper and the capillary are coincident.

Further, the bottom of the dropper is connected with the sleeve through a connecting ring, and the connecting ring is in a conical shape and is arranged at a first open slot at the upper end of the sleeve.

Furthermore, the upper ends of the two ribs are arranged below the connecting ring, and the outer side wall of the two ribs is connected with the inner side wall of the sleeve.

The drip tube is characterized by further comprising a cup cover, wherein a first step in interference fit with the cup cover is arranged at the joint of the lower end of the drip tube and the connecting ring; the cup cover is internally provided with a second step which is in interference fit with the inner side wall of the dropper.

Further, still include the cup body, cup body and bushing lateral wall interference fit.

Furthermore, the inner side walls of the two ribs are provided with arc surfaces with the inner diameter equal to that of the dropper.

Furthermore, the outer side wall of the first open slot at the upper end of the sleeve is provided with an annular step convenient to take.

Furthermore, the part of the capillary tube which is not connected with the rib is also provided with a second opening groove communicated with the inside of the through hole.

Furthermore, the dropper, the sleeve, the capillary tube and the ribs are of an integrated structure and are made of medical plastics.

The utility model discloses a quantitative dripping straw passes through the rib and realizes the connection of pipe box and capillary, sets up first open slot moreover on the rib for the rib not only can play the connection fixed action, can also make whole dripping straw move liquid volume greatly increased, under the simple condition of overall structure, satisfies more demands.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it.

Wherein:

FIG. 1 is a first schematic structural view of the quantitative drip tube of the present invention;

FIG. 2 is a schematic structural view of the quantitative drip tube of the present invention 2;

FIG. 3 is a top view of the burette of the present invention;

FIG. 4 is a side view of the burette of the present invention;

figure 5 is a cross-sectional view of the present invention in figure 4;

figure 6 is a semi-sectional view of the burette of the present invention.

Description of reference numerals:

10. a sleeve; 20. a dropper; 30. ribs; 31. a first open slot; 32. an arc-shaped surface; 40. a capillary tube; 41. a through hole; 50. a connecting ring; a connecting assembly; 60. an annular step; 70. a first step.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention clearer and more obvious, the following description of the present invention with reference to the accompanying drawings and embodiments is provided for further details. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1 to 6, a multi-volume pipette, specifically 15-30 microliters, as a preferred embodiment of the present invention includes a sleeve 110, a dropper 20 disposed on the sleeve 110, two ribs 30 symmetrically disposed on the sleeve 110, and a capillary tube 40 disposed between the two ribs 30, wherein central axes of the sleeve 110, the dropper 20, and the capillary tube 40 are coincident.

The capillary tube 40 is internally provided with a through hole 41 which penetrates through and is used for storing liquid, the joint of the two ribs 30 and the capillary tube 40 is provided with a first opening groove 31 which is communicated with the through hole 41 and is used for storing liquid, and the through hole 41 and the first opening groove 31 are matched to realize multi-capacity storage, so that a multi-capacity quantitative dripping and sucking tube can be realized. Preferably, the capillary 40 has a capacity of 15 to 30. mu.l, and the capacity of the size thereof depends on the length of the capillary 40, and the inner diameter of the through hole 41 is constant. In this embodiment, a further implementation manner is as follows: a second opening groove communicating with the inside of the through hole 41 is also provided in a portion of the capillary 40 not connected to the rib 30.

The bottom of the dropper 20 is connected with the sleeve 110 through a connecting ring 50, the connecting ring 50 is in a conical shape and is arranged at the first opening groove 31 at the upper end of the sleeve 110; the upper ends of the two ribs 30 are arranged below the connecting ring 50, and the outer side wall of the two ribs is connected with the inner side wall of the sleeve 110; and the inner side walls of the two ribs 30 are provided with arc surfaces 32 with the inner diameter equal to that of the dropper 20, so that the liquid in the capillary tube 40 can be conveniently dropped into the dropper 20.

The embodiment also comprises a cup cover, wherein a first step 70 in interference fit with the cup cover is arranged at the joint of the lower end of the dropper 20 and the connecting ring 50; the second step is arranged in the inner side wall of the dropper 20 in interference fit in the cup cover, the first step 70 is in interference fit with the cup cover, and the second step is in interference fit with the dropper 20, so that the cup cover can be firmly and detachably fixed; the cup further comprises a cup body, the cup body is in interference fit with the outer side wall of the sleeve 110, and the cup cover is matched with the cup body to ensure the sealing performance. The cup cover and the cup body in the embodiment are of the existing structure and are not described in detail herein.

The outer side wall of the first opening groove 31 at the upper end of the sleeve 110 is provided with an annular step connecting component which is convenient to take; 60, adding a solvent to the mixture; the dropper 20, the cannula 110, the capillary tube 40 and the ribs 30 are of one-piece construction and are made of medical grade plastic.

To sum up, the utility model discloses a ration is dripped the straw and is passed through the rib and realize the connection of pipe box and capillary, sets up first open slot moreover on the rib for the rib not only can play and connect fixed action, can also make whole pipette's that drips move liquid greatly increased, under the simple condition of overall structure, satisfies more demands, moreover simple structure, the mould die sinking of being convenient for, greatly reduced the manufacturing cost that the straw was dripped to the ration

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without modification to the method and technical solution of the present invention, or the present invention can be directly applied to other occasions without modification, all within the scope of the present invention.

Claims

1. The multi-volume quantitative dropper is characterized by comprising a sleeve (110), a dropper (20) arranged on the sleeve (110), two ribs (30) symmetrically arranged on the sleeve (110), and a capillary tube (40) arranged between the two ribs (30);

the inside through-hole (41) that runs through and be used for saving liquid that sets up of capillary (40), two rib (30) and capillary (40) junction set up with through-hole (41) intercommunication and be used for saving the first open slot (31) of liquid.

2. A multi-volume burette according to claim 1, wherein the volume of said capillary tube (40) is between 15 and 30 microliters.

3. A multi-volume burette tube according to claim 1, wherein the central axes of said sleeve (110), burette (20) and capillary tube (40) coincide.

4. A multi-capacity burette straw according to claim 1, wherein the bottom of the burette (20) is connected with the sleeve (110) through a connection ring (50), the connection ring (50) is in a cone shape and is arranged at the first opening groove (31) at the upper end of the sleeve (110).

5. A multi-capacity burette straw according to claim 4, wherein the upper ends of said ribs (30) are disposed below the connecting ring (50) and the outer side wall thereof is connected to the inner side wall of the sleeve (110).

6. The multi-volume burette tube of claim 4, further comprising a cap, wherein a first step (70) in interference fit with the cap is arranged at the connection position of the lower end of the burette (20) and the connecting ring (50); the cup cover is internally provided with a second step which is in interference fit with the inner side wall of the dropper (20).

7. The multi-volume burette straw of claim 1, further comprising a cup body in interference fit with an outer sidewall of the sleeve (110).

8. A multi-capacity burette tube according to claim 1, wherein the inner side walls of said ribs (30) are provided with arcuate surfaces (32) having an inner diameter equal to the inner diameter of the burette (20).

9. A multi-capacity burette straw according to claim 1, wherein the portion of the capillary tube (40) not connected to the ribs (30) is also provided with a second open channel communicating with the interior of the through hole (41).

10. A multi-volume burette tube according to claim 1, wherein said burette (20), sleeve (110), capillary tube (40) and ribs (30) are of unitary construction and are made of a medical grade plastic.