CN214052845U

CN214052845U - Avoid cleaning structure of sample needle hanging liquid

Info

Publication number: CN214052845U
Application number: CN202022622133.6U
Authority: CN
Inventors: 吴国银; 胡统号; 吴冬
Original assignee: Suzhou Hybiome Biomedical Engineering Co Ltd
Current assignee: Suzhou Hybiome Biomedical Engineering Co Ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-08-27
Anticipated expiration: 2030-11-13

Abstract

The utility model discloses an avoid washing structure of sampling needle hanging liquid, connect, reinforce the washing liquid joint including last body, well body, lower body, system liquid, it includes first screw hole, loculus hole to go up the body, the equal shaping of both sides face of going up the body has first screw hole, the inboard shaping of going up the body has the loculus hole, the both sides of loculus hole just are in the inboard symmetry shaping of going up the body has two gas pockets, two the gas pocket with the department of running through of loculus hole is provided with the through-hole. The utility model discloses can effectively avoid hanging liquid after the needle point washs, the cleaning performance is good, and the cleaning efficiency is high, reduces the washing liquid quantity, labour saving and time saving, and work efficiency is high.

Description

Avoid cleaning structure of sample needle hanging liquid

Technical Field

The utility model relates to a wash technical field, especially relate to a wash structure of avoiding sample probe hanging liquid.

Background

In full-automatic chemiluminescence immunoassay appearance, reagent needle and sample needle are after the application of sample, in order to avoid different samples and reagent interact, consequently when gathering next sample or adding and annotating next reagent, need wash the application of sample needle, whether the washing is clean directly influences the experimental result.

At present, a sample needle or a reagent needle is cleaned by a water column flushing mode, and the cleaning mode for flushing the needle tip by the water column has the following defects:

(1) the relative position of the needle point and the water column needs to be accurately debugged, so that the needle point and the area (the part immersed into a sample or a reagent during sampling) above the needle point are fully wrapped by the water column to ensure clean cleaning, and the difficulty of coordinate debugging is increased;

(2) when the water column on one side washes the needle point, the water column can not effectively wash the opposite needle point part, the washing effect is poor, and the accidental washing is not clean;

(3) the needle point washing needs longer time, the washing efficiency is poor, the washing liquid is wasted, and the washing time is long;

(4) the water column washes, the water flow is unstable, and the needle tip is seriously hung with liquid after washing.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a avoid the washing structure of sample needle hanging liquid for solving above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

a cleaning structure for avoiding liquid hanging of a sampling needle comprises an upper body, a middle body, a lower body, a system liquid joint and a reinforced cleaning liquid joint, wherein the upper body comprises a first threaded hole and a small cavity hole, the first threaded hole is formed in each of two side faces of the upper body, the small cavity hole is formed in the inner side of the upper body, two air holes are symmetrically formed in the two sides of the small cavity hole and in the inner side of the upper body, through holes are formed in the penetrating positions of the two air holes and the small cavity hole, a large cavity hole is formed below the small cavity hole and in the inner side of the upper body, a dome is formed at the top end of the large cavity hole, a first cylindrical shaft is arranged at the bottom of the upper body, the first cylindrical shaft and the upper body are integrally formed, a first sealing groove is formed in the outer side of the first cylindrical shaft, and first screw holes are formed in four corners of the bottom of the upper body, a sealing ring is arranged in the first sealing groove, airflow joints are arranged on the two first threaded holes, and the middle body is arranged below the upper body;

the middle body comprises an upper step hole and a cleaning pool, the upper step hole is arranged on the upper end face of the middle body, the cleaning pool is formed at the center of the bottom of the upper step hole, a second threaded hole is formed in the side face of the middle body, two flow guide notches are formed in the upper edge of the cleaning pool in a symmetrical mode, a spherical bottom is formed in the bottom of the cleaning pool, the second threaded hole penetrates through the cleaning pool, a third threaded hole is formed in the other side face of the middle body and penetrates through the cleaning pool, a lower step hole is formed in the bottom of the middle body, a first waste liquid collecting cavity is formed above the lower step hole and inside the middle body, a waste liquid collecting hole is formed in the outer side of the cleaning pool and communicated with the first waste liquid collecting cavity, and a second screw hole is formed in the four corners of the top of the middle body, the system liquid joint is installed on the second threaded hole, the reinforced cleaning liquid joint is installed on the third threaded hole, and the lower body is installed below the middle body;

the lower body comprises a second cylindrical shaft and a second sealing groove, the top end of the lower body is provided with the second cylindrical shaft, the second cylindrical shaft is integrally formed on the lower body, the second sealing groove is formed in the outer side of the second cylindrical shaft, a sealing rubber ring is installed in the second sealing groove, a second waste liquid collecting cavity is formed in the inner side of the lower body and penetrates through the second cylindrical shaft, a fourth threaded hole is formed in the lower portion of the second waste liquid collecting cavity, countersunk holes are formed in four corners of the upper end of the lower body, fixed U holes are formed in four corners of the lower body, and a waste liquid joint is installed in the fourth threaded hole.

Preferably: the upper body, the middle body and the lower body are made of alkali-resistant materials, such as ABS, PP, PEI, PTFE or PEEK.

Preferably: the number of the waste liquid collecting holes is 2-8.

Preferably: and the included angles between the axes of the two air holes and the axis of the small cavity hole are both 45 degrees.

Preferably: the upper body, the middle body and the lower body are fixedly connected through screws.

Compared with the prior art, the beneficial effects of the utility model are as follows:

this wash structure can effectively avoid the needle point to wash back hanging liquid, and the cleaning performance is good, and the cleaning efficiency is high, reduces the washing liquid quantity, labour saving and time saving, and work efficiency is high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a front sectional view of a cleaning structure for preventing a sampling needle from hanging liquid according to the present invention;

FIG. 2 is a front cross-sectional view of the upper body of the cleaning structure for preventing the sampling needle from hanging liquid according to the present invention;

FIG. 3 is a schematic structural view of the cleaning structural upper body for preventing the sampling needle from hanging liquid according to the present invention;

FIG. 4 is a front cross-sectional view of the body of the cleaning structure for preventing the sampling needle from hanging liquid according to the present invention;

FIG. 5 is a schematic structural view of the body of the cleaning structure for preventing the sampling needle from hanging liquid according to the present invention;

FIG. 6 is a front cross-sectional view of the lower body of the cleaning structure for preventing the sampling needle from hanging liquid according to the present invention;

FIG. 7 is a schematic structural view of the lower body of the cleaning structure for preventing the sampling needle from hanging liquid according to the present invention;

FIG. 8 is a first schematic structural view showing a use state of a cleaning structure for preventing a sampling needle from hanging liquid according to the present invention;

FIG. 9 is a second structural diagram illustrating the usage status of the cleaning structure of the present invention for preventing the sampling needle from hanging liquid;

fig. 10 is a third structural diagram of the cleaning structure of the present invention for avoiding the hanging of the sampling needle.

The reference numerals are explained below:

1. an upper body; 11. a first threaded hole; 12. a small bore; 13. air holes; 131. a through hole; 14. a large bore; 141. a dome; 15. a first cylindrical shaft; 151. a first seal groove; 16. a first screw hole; 2. a middle body; 21. an upper stepped bore; 22. a cleaning tank; 221. a flow guide notch; 222. a spherical bottom; 23. a second threaded hole; 24. a third threaded hole; 25. a lower step hole; 26. a waste liquid collection well; 27. a first waste liquid collection chamber; 28. a second screw hole; 3. a lower body; 31. a second cylindrical shaft; 311. a second seal groove; 32. a fourth threaded hole; 33. a second waste liquid collection chamber; 34. a countersunk hole; 35. fixing the U hole; 4. a system fluid connector; 5. strengthening the cleaning liquid joint; 6. an air flow joint; 7. a waste liquid joint; 8. and (5) sealing rings.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "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 used merely for convenience of description and for 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. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1-10, a cleaning structure for preventing a sampling needle from hanging liquid comprises an upper body 1, a middle body 2, a lower body 3, a system liquid joint 4, and a reinforced cleaning liquid joint 5, wherein the upper body 1 comprises a first threaded hole 11 and a small cavity hole 12, the first threaded hole 11 is formed on both side surfaces of the upper body 1, the small cavity hole 12 is formed on the inner side of the upper body 1, two air holes 13 are symmetrically formed on both sides of the small cavity hole 12 and on the inner side of the upper body 1, a through hole 131 is formed at the penetrating position of the two air holes 13 and the small cavity hole 12, a large cavity hole 14 is formed below the small cavity hole 12 and on the inner side of the upper body 1, the air holes 13 penetrate through the large cavity hole 14, a dome 141 is formed at the top end of the large cavity hole 14, a first cylindrical shaft 15 is arranged at the bottom of the upper body 1, the first cylindrical shaft 15 is integrally formed with the upper body 1, a first sealing groove 151 is formed on the outer side of the first cylindrical shaft 15, first screw holes 16 are formed at four corners of the bottom of the upper body 1, a sealing ring 8 is arranged in the first sealing groove 151, airflow connectors 6 are arranged on the two first screw holes 11, and the middle body 2 is arranged below the upper body 1;

the middle body 2 comprises an upper step hole 21 and a cleaning pool 22, the upper step hole 21 is arranged on the upper end surface of the middle body 2, the cleaning pool 22 is formed at the center position of the bottom of the upper step hole 21, a second threaded hole 23 is formed on the side surface of the middle body 2, two flow guide notches 221 are symmetrically formed on the upper edge of the cleaning pool 22, a spherical bottom 222 is formed at the bottom of the cleaning pool 22, the second threaded hole 23 penetrates through the cleaning pool 22, a third threaded hole 24 is formed on the other side surface of the middle body 2, the third threaded hole 24 penetrates through the cleaning pool 22, a lower step hole 25 is formed at the bottom of the middle body 2, a first waste liquid collecting cavity 27 is formed above the lower step hole 25 and inside the middle body 2, a waste liquid collecting hole 26 is arranged on the outer side of the cleaning pool 22, the waste liquid collecting hole 26 is communicated with the first waste liquid collecting cavity 27, second screw holes 28 are formed at the four corners of the top end of the middle body 2, and a system liquid connector 4 is arranged on the second threaded hole 23, the reinforced cleaning liquid joint 5 is arranged on the third threaded hole 24, and the lower body 3 is arranged below the middle body 2;

lower body 3 includes second cylinder axle 31, second seal groove 311, the top of lower body 3 is provided with second cylinder axle 31, second cylinder axle 31 integrated into one piece is in lower body 3, the outside shaping of second cylinder axle 31 has second seal groove 311, install the rubber seal in the second seal groove 311, the inboard shaping of lower body 3 has second waste liquid to collect chamber 33, second waste liquid is collected chamber 33 and is run through second cylinder axle 31, the below shaping of second waste liquid collection chamber 33 has fourth screw hole 32, the upper end four corners shaping of lower body 3 has counter sink 34, the lower part four corners shaping of lower body 3 has fixed U hole 35, install waste liquid joint 7 on the fourth screw hole 32.

Preferably: the upper body 1, the middle body 2 and the lower body 3 are made of alkali-resistant materials, such as ABS, PP, PEI, PTFE or PEEK; 2-8 waste liquid collecting holes 26 are formed; the included angles between the axes of the two air holes 13 and the axes of the small cavity holes 12 are both 45 degrees; the upper body 1, the middle body 2 and the lower body 3 are fastened and connected through screws.

The utility model discloses a theory of operation and application method: after the sample is added to the needle, the needle point is aligned with the small cavity hole 12 and descends to the designated height in the cleaning pool 22, the needle is opened for internal cleaning, system cleaning liquid is used for cleaning the inner wall of the needle, the cleaning liquid is injected into the cleaning pool 22 at the moment, and the cleaning liquid flows into the waste liquid collecting hole 26 through the flow guide notch 221 after filling the cleaning pool 22;

after the internal cleaning is carried out for a certain time, the internal cleaning is closed, the reinforced cleaning is started, the reinforced cleaning solution is injected into the cleaning pool 22 through the reinforced cleaning solution joint 5, when the reinforced cleaning solution is injected, water flow impacts the spherical bottom 222 at the bottom of the cleaning pool 22 to play a role of upwelling, after the reinforced cleaning solution is filled in the cleaning pool 22, the reinforced cleaning solution flows into the waste liquid collecting hole 26 through the flow guide notch 221, and when the reinforced cleaning solution flows out of the waste liquid pool, the function of carrying out primary cleaning on a sample or reagent residue discharged from the first-step needle is carried out;

when the needle is intensively cleaned, the injection pump is started, the needle sucks the intensified cleaning solution, and the intensified cleaning solution is discharged after the interval of 0.5-1s, the soaking function is to destroy residual protein on the inner wall of the needle so as to be beneficial to cleaning, and the soaking time is adjusted according to the requirement, so that the soaking frequency can be increased;

after the intensified cleaning is carried out for a period of time, the intensified cleaning is closed, then the inner cleaning of the needle is opened again, the system liquid is discharged from the needle, the inner wall of the needle is cleaned again, meanwhile, the outer cleaning pump is started, the system liquid is discharged from the system liquid joint 4, and the outer wall of the needle point is cleaned externally;

after the inside and outside cleaning is carried out by using the system liquid, the common outside cleaning is closed, the inside cleaning of the needle is still carried out, the air valve is opened, high-pressure air is blown into the small cavity hole 12 under the action of the air hole 13 through the air flow connector 6, the needle is lifted up to a certain height, the needle point is separated from the liquid level of the system liquid in the cleaning pool 22 and is lower than the air hole 13 at the position, and the inside cleaning of the needle is closed;

after the internal cleaning is closed, the needle is continuously lifted at a low speed, air flow blows towards the needle in the needle lifting process, the needle is lifted to achieve a drying effect, liquid hanging of the needle point is avoided, the needle returns to the original point position home at a high speed until the needle is lifted to a designated position higher than the through hole 131 at the bottom of the air hole 13, then the air valve is closed, air blowing is stopped, and the air blowing achieves the drying effect on residual system liquid on the inner wall of the small cavity hole 12 from the designated position to the home position.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a avoid washing structure of sampling needle hanging liquid which characterized in that: the cleaning solution reinforcing device comprises an upper body (1), a middle body (2), a lower body (3), a system liquid joint (4) and a reinforcing cleaning solution joint (5), wherein the upper body (1) comprises a first threaded hole (11) and a small cavity hole (12), the first threaded hole (11) is formed in each of two side faces of the upper body (1), the small cavity hole (12) is formed in the inner side of the upper body (1), two air holes (13) are symmetrically formed in each of two sides of the small cavity hole (12) and in the inner side of the upper body (1), a through hole (131) is formed in a penetrating position of each of the two air holes (13) and the small cavity hole (12), a large cavity hole (14) is formed below the small cavity hole (12) and in the inner side of the upper body (1), a dome (141) is formed at the top end of the large cavity hole (14), a first cylindrical shaft (15) is arranged at the bottom of the upper body (1), the first cylindrical shaft (15) and the upper body (1) are integrally formed, a first sealing groove (151) is formed in the outer side of the first cylindrical shaft (15), first screw holes (16) are formed in four corners of the bottom of the upper body (1), a sealing ring (8) is installed in the first sealing groove (151), airflow connectors (6) are installed on the two first screw holes (11), and the middle body (2) is installed below the upper body (1);

the middle body (2) comprises an upper step hole (21) and a cleaning pool (22), the upper step hole (21) is arranged on the upper end face of the middle body (2), the cleaning pool (22) is formed at the center of the bottom of the upper step hole (21), a second threaded hole (23) is formed in the side face of the middle body (2), two flow guide notches (221) are formed in the upper edge of the cleaning pool (22) in a symmetrical mode, a spherical bottom (222) is formed in the bottom of the cleaning pool (22), the cleaning pool (22) is penetrated through the second threaded hole (23), a third threaded hole (24) is formed in the other side face of the middle body (2), the third threaded hole (24) penetrates through the cleaning pool (22), a lower step hole (25) is formed in the bottom of the middle body (2), a first waste liquid collecting cavity (27) is formed in the upper portion of the middle body (2) and is formed in the inner portion of the middle body (2), a waste liquid collecting hole (26) is formed in the outer side of the cleaning pool (22), the waste liquid collecting hole (26) is communicated with the first waste liquid collecting cavity (27), second screw holes (28) are formed in four corners of the top end of the middle body (2), the system liquid connector (4) is installed on the second screw hole (23), the strengthened cleaning liquid connector (5) is installed on the third screw hole (24), and the lower body (3) is installed below the middle body (2);

the lower body (3) comprises a second cylindrical shaft (31) and a second sealing groove (311), the top end of the lower body (3) is provided with the second cylindrical shaft (31), the second cylindrical shaft (31) is integrally formed on the lower body (3), the outer side of the second cylindrical shaft (31) is formed with the second sealing groove (311), a sealing rubber ring is arranged in the second sealing groove (311), a second waste liquid collecting cavity (33) is formed on the inner side of the lower body (3), the second waste liquid collecting cavity (33) penetrates through the second cylindrical shaft (31), a fourth threaded hole (32) is formed below the second waste liquid collecting cavity (33), the upper end four corners shaping of lower body (3) has counter sink (34), the lower part four corners shaping of lower body (3) has fixed U hole (35), install waste liquid joint (7) on fourth screw hole (32).

2. The cleaning structure for preventing the liquid hanging of the sampling needle as claimed in claim 1, wherein: the upper body (1), the middle body (2) and the lower body (3) are made of alkali-resistant materials, such as ABS, PP, PEI, PTFE or PEEK.

3. The cleaning structure for preventing the liquid hanging of the sampling needle as claimed in claim 1, wherein: the number of the waste liquid collecting holes (26) is 2-8.

4. The cleaning structure for preventing the liquid hanging of the sampling needle as claimed in claim 1, wherein: the included angles between the axes of the two air holes (13) and the axes of the small cavity holes (12) are both 45 degrees.

5. The cleaning structure for preventing the liquid hanging of the sampling needle as claimed in claim 1, wherein: the upper body (1), the middle body (2) and the lower body (3) are fastened and connected through screws.