CN217663415U - Labyrinth type splash-proof micro-suction head - Google Patents

Abstract

The utility model discloses a labyrinth splashproof micro-suction head, aim at providing one kind and have the buffering effect, prevent that the aerosol from splashing and the strong micro-suction head of stability, its technical scheme main points are through setting up the suction head body into including the stock solution chamber, place the installation cavity of filter core and separate the last baffle of stock solution chamber and installation cavity, upward be equipped with a plurality of through-holes of giving vent to anger on the baffle, be equipped with labyrinth splashproof structure between stock solution chamber and the installation cavity, labyrinth splashproof structure through setting up, then can realize the stability when moving the liquid through this splashproof structure, reduce the influence that pipettor atmospheric pressure unstability exists, further through set up this labyrinth splashproof structure into including being connected with last baffle and being the longitudinal baffle of annular form, set up in the longitudinal baffle below and set up down the baffle and set up the lower through-hole on the baffle with the longitudinal baffle clearance, clearance between lower baffle and the longitudinal baffle is first clearance, the utility model is suitable for a micro-suction head technical field.

Description

Labyrinth type splash-proof micro-suction head

Technical Field

The utility model relates to a micro-suction head technical field, more specifically say, it relates to a labyrinth splashproof micro-suction head.

Background

In the laboratory, liquid is often required to be transferred, and the liquid is transferred by using a dropper, a syringe and the like in a traditional method. Micropipettes are common instruments in the field of life sciences, and staff often transfer or dispense liquid reagents by using the micropipettes. The micropipettor is a precision liquid taking device (commonly known as a gun) capable of being adjusted randomly within a certain capacity range, the basic principle of the micropipettor is that a piston in the device moves up and down, the moving distance of an air piston is realized by controlling a screw rod structure through an adjusting wheel, and a push button drives a push rod to enable the piston to move downwards so as to remove air in a piston cavity. After the hand is loosened, the piston is restored to the original position under the action of the return spring, so that the one-time liquid suction process is completed.

At present, the micro suction head on the market comprises a suction head pipe body and a filter element arranged in the suction head pipe body. When the traditional micro-suction head is used in practice, aerosol splashing occurs when the micro-suction head sucks materials due to unstable air pressure of the liquid transfer device, cross infection is caused to the liquid transfer device, and normal use is affected.

SUMMERY OF THE UTILITY MODEL

To the deficiency that prior art exists, the utility model aims to provide a have the buffering effect, prevent that the aerosol from splashing and the stable strong micro-suction head.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a labyrinth splashproof micro-suction head, includes the suction head body and sets up the filter core in the suction head body, the suction head body includes the stock solution chamber, places the installation cavity of filter core and separates the last baffle of stock solution chamber and installation cavity, upward be equipped with a plurality of through-holes of giving vent to anger on the baffle, be equipped with labyrinth splashproof structure between stock solution chamber and the installation cavity, this labyrinth splashproof structure includes and is connected with last baffle and be the longitudinal baffle of annular form, set up in the longitudinal baffle below and set up down the baffle with the longitudinal baffle clearance and set up the lower through-hole on the baffle down, and the clearance between lower baffle and the longitudinal baffle is first clearance.

The utility model discloses further set up to: and one side of the lower through hole, which faces the longitudinal partition plate, is provided with an annular partition plate, and a second gap is formed between the annular partition plate and the longitudinal partition plate.

The utility model discloses further set up to: the ratio between the height of the longitudinal partition and the height of the annular partition is between 3 and 4.

The utility model discloses further set up to: the ratio between the width of the first gap and the width of the second gap is between 3 and 4.

The utility model discloses further set up to: the section of the air outlet through hole is in a trapezoid shape or a direction shape.

The utility model discloses further set up to: the air outlet through holes are uniformly distributed on the upper clapboard, and the number of the air outlet through holes is 5-6.

The utility model discloses further set up to: two intermediate baffles are arranged between the longitudinal baffle and the inner wall of the suction head pipe body, the cross sections of the intermediate baffles are arc-shaped, and the two intermediate baffles are symmetrically arranged.

By adopting the technical scheme, the beneficial effects are that 1, by setting the suction head pipe body to comprise a liquid storage cavity, an installation cavity for placing a filter element and an upper partition plate for separating the liquid storage cavity from the installation cavity, a plurality of air outlet through holes are formed in the upper partition plate, a labyrinth type anti-splash structure is arranged between the liquid storage cavity and the installation cavity, by the set labyrinth type anti-splash structure, the stability during liquid transfer can be realized through the anti-splash structure, the influence of unstable air pressure of a liquid transfer machine is reduced, further, by setting the labyrinth type anti-splash structure to comprise a longitudinal partition plate which is connected with the upper partition plate and is in an annular shape, a lower partition plate is arranged below the longitudinal partition plate and is in a gap with the longitudinal partition plate, and a lower through hole is arranged on the lower partition plate, the gap between the lower partition plate and the longitudinal partition plate is a first gap, an air flow passage is formed between the first gap and the air outlet through hole, an air blocking structure is formed by connecting the lower partition plate and the longitudinal partition plate, the whole anti-splash effect is realized, the structure is simple, and the practicability is strong;

2. the annular partition plate is arranged on one side, facing the longitudinal partition plate, of the lower through hole, and a second gap is formed between the annular partition plate and the longitudinal partition plate, so that a double-cache effect is formed by the arranged annular partition plate and the second gap, and the double-cache device is high in stability and simple in structure;

3. further, two intermediate clapboards are arranged between the longitudinal clapboard and the inner wall of the suction head pipe body, the cross sections of the intermediate clapboards are arc-shaped, and the two intermediate clapboards are symmetrically arranged, so that a triple buffering effect is realized, the stability is high, and the structure is simple.

Drawings

Figure 1 is a schematic view of a partial cross-sectional view of an embodiment of a labyrinth splash guard micro-tip of the present invention.

Fig. 2 is an enlarged view of the structure at a position a in fig. 1 of an embodiment of the labyrinth splash-proof micro-suction head of the present invention.

The reference number in the figure, 1, a sucker pipe body; 10. a liquid storage cavity; 11. a mounting cavity; 2. a filter element; 30. an upper partition plate; 31. an air outlet through hole; 32. a longitudinal partition; 33. a lower partition plate; 330. a lower through hole; 331. a first gap; 34. an annular partition plate; 35. a second gap; 36. a middle clapboard.

Detailed Description

An embodiment of a labyrinth splash guard of the present invention is further described with reference to fig. 1-2.

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 labyrinth splash-proof micro-suction head comprises a suction head tube body 1 and a filter element 2 arranged in the suction head tube body 1, wherein the suction head tube body 1 comprises a liquid storage cavity 10, an installation cavity 11 for placing the filter element 2 and an upper clapboard 30 for separating the liquid storage cavity 10 and the installation cavity 11, a plurality of air outlet through holes 31 are arranged on the upper clapboard 30, a labyrinth splash-proof structure is arranged between the liquid storage cavity 10 and the installation cavity 11, the labyrinth splash-proof structure comprises a longitudinal clapboard 32 which is connected with an upper clapboard 30 and is in a ring shape, a lower clapboard 33 which is arranged below the longitudinal clapboard 32 and is in clearance with the longitudinal clapboard 32, and a lower through hole 330 which is arranged on the lower clapboard 33, wherein the clearance between the lower clapboard 33 and the longitudinal clapboard 32 is a first clearance 331, by arranging the suction head pipe body 1 to comprise the liquid storage cavity 10, the installation cavity 11 for placing the filter element 2 and the upper clapboard 30 for separating the liquid storage cavity 10 from the installation cavity 11, the upper clapboard 30 is provided with a plurality of air outlet through holes 31, a labyrinth splash-proof structure is arranged between the liquid storage cavity 10 and the installation cavity 11, and by the arranged labyrinth splash-proof structure, the stability during pipetting can be realized by the splash-proof structure, the influence of unstable air pressure of the pipette can be reduced, further, the labyrinth splash-proof structure is arranged to include a longitudinal partition 32 which is connected with the upper partition 30 and is in a ring shape, a lower partition 33 which is arranged below the longitudinal partition 32 and is spaced from the longitudinal partition 32, and a lower through hole 330 which is arranged on the lower partition 33, the gap between the lower partition 33 and the longitudinal partition 32 is a first gap 331, through the air flow path formed between the lower through-hole 330 and the first gap 331 and the air outlet through-hole 31, the lower partition plate 33 and the longitudinal partition plate 32 are connected to form a gas barrier structure, so that the integral splash-proof effect is realized, the structure is simple, and the practicability is high.

The utility model discloses further set up to, lower through-hole 330 is equipped with annular baffle 34 towards longitudinal baffle 32 one side, is equipped with second clearance 35 between this annular baffle 34 and the longitudinal baffle 32, through be equipped with annular baffle 34 towards longitudinal baffle 32 one side at lower through-hole 330, is equipped with second clearance 35 between this annular baffle 34 and the longitudinal baffle 32, then through the annular baffle 34 and the cooperation second clearance 35 that set up, forms the effect of dual buffer memory, and stability is strong, simple structure.

The utility model discloses further set up to, ratio between the height of longitudinal baffle 32 and annular baffle 34 is between 3-4, ratio between the width of first clearance 331 and the width of second clearance 35 is between 3-4, adopt above-mentioned structure setting, then through controlling the height between two baffles, then the airflow channel who forms is different, then through control height, ensure to realize corresponding airflow channel control, convenience when guaranteeing to get liquid, moreover, the steam generator is simple in structure, therefore, the clothes hanger is strong in practicability.

The utility model discloses further set up to, the cross-section of giving vent to anger through-hole 31 is trapezoidal form or is the direction form, adopts the above-mentioned structure setting, and on the one hand the atress intensity is higher, and on the other hand has also improved whole atress feed liquor degree, and stability is strong, simple structure.

The utility model discloses further set up to, respectively give vent to anger through-hole 31 equipartition on last baffle 30, and the quantity of the through-hole 31 of giving vent to anger is 5-6, adopts the above-mentioned structure setting, then through the through-hole 31 of giving vent to anger that sets up, realizes good effect of giving vent to anger, and the practicality is strong, simple structure.

The utility model discloses further set up to, be equipped with two intermediate bottom 36 between longitudinal baffle 32 and the 1 inner wall of suction head body, and intermediate bottom 36's cross-section is the arc form, and 36 symmetries of two intermediate bottom set up, and further setting up is equipped with two intermediate bottom 36 between longitudinal baffle 32 and 1 inner wall of suction head body through the setting, and intermediate bottom 36's cross-section is the arc form, and 36 symmetries of two intermediate bottom set up, then realized forming triple buffering nature effect, and stability is strong, simple 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 (7)

1. The utility model provides a labyrinth splashproof micro-suction head, includes suction head body (1) and sets up filter core (2) in suction head body (1), its characterized in that, suction head body (1) is including stock solution chamber (10), place installation cavity (11) of filter core (2) and separate last baffle (30) of stock solution chamber (10) and installation cavity (11), upward be equipped with a plurality of through-holes of giving vent to anger (31) on baffle (30), be equipped with labyrinth splashproof structure between stock solution chamber (10) and installation cavity (11), this labyrinth splashproof structure includes longitudinal baffle (32) be connected with last baffle (30) and be the annular form, set up in longitudinal baffle (32) below and with longitudinal baffle (32) clearance set up down lower through-hole (330) on baffle (33) and set up down, and the clearance between lower baffle (33) and longitudinal baffle (32) is first clearance (331).

2. A labyrinth splash guard as claimed in claim 1, wherein the lower through-hole (330) is provided with an annular partition (34) on the side facing the longitudinal partition (32), and a second gap (35) is provided between the annular partition (34) and the longitudinal partition (32).

3. A labyrinth splash guard as claimed in claim 2, wherein the ratio between the height of the longitudinal partition (32) and the height of the annular partition (34) is between 3 and 4.

4. A labyrinth splash guard as claimed in claim 2, wherein the ratio between the width of the first gap (331) and the width of the second gap (35) is between 3 and 4.

5. A labyrinth splash guard as claimed in claim 1, wherein the cross-section of the vent hole (31) is trapezoidal or directional.

6. The labyrinth splash-proof micro-suction head as claimed in claim 5, wherein the air outlet holes (31) are uniformly distributed on the upper baffle plate (30), and the number of the air outlet holes (31) is 5-6.

7. A labyrinth splash proof micro suction head according to claim 1, characterized in that two intermediate partitions (36) are arranged between the longitudinal partition (32) and the inner wall of the suction head tube body (1), and the cross section of the intermediate partitions (36) is arc-shaped, and the two intermediate partitions (36) are symmetrically arranged.

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