CN211487736U

CN211487736U - Serum pipette with high leakproofness

Info

Publication number: CN211487736U
Application number: CN201922178109.5U
Authority: CN
Inventors: 姜程馨
Original assignee: Hangzhou Maien Technology Co ltd
Current assignee: Hangzhou Maien Technology Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-09-15
Anticipated expiration: 2029-12-06

Abstract

The utility model provides a serum pipette with high leakproofness belongs to serum pipette technical field. The serum pipette with high leakproofness includes liquid storage tube, imbibition portion and mounting. The liquid storage pipe comprises a pipe body and a first flange, a first clamping groove is formed in the bottom of the pipe body, a first sealing gasket is pasted inside the first groove, and the first groove is located on one side of the first clamping groove. The liquid suction part comprises a liquid suction head, a clamping block and a second flange, a second groove is formed in the top surface of the liquid suction head, a threaded sleeve is in threaded connection with the outer surface of the pipe body, a third groove is formed in the threaded sleeve, the lath is integrally formed at the bottom of the surface of the third groove, and a notch matched with the clamping block is formed in the surface of the lath. The utility model discloses can seal the pipette from inside and outside two directions, great improvement the leakproofness, guarantee pipette normal use.

Description

Serum pipette with high leakproofness

Technical Field

The utility model relates to a serum pipette field particularly, relates to a serum pipette with high leakproofness.

Background

Pipettes are gauges used to accurately remove 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 movable tube is in a sharp mouth shape, and a marking line is carved at the neck of the upper end of the movable tube and is a mark of the accurate volume to be moved.

At present, the sealing performance of the liquid suction head of the existing serum pipette is poor after replacement, so that the normal use is influenced.

SUMMERY OF THE UTILITY MODEL

In order to compensate the above deficiency, the utility model provides a serum pipette with high leakproofness aims at improving the relatively poor problem of leakproofness after the imbibition head changes.

The utility model discloses a realize like this:

a serological pipette with high sealing performance comprises a liquid storage tube, a suction part, a liquid suction part and a fixing part.

The liquid storage pipe comprises a pipe body and a first flange, wherein a first clamping groove is formed in the bottom of the pipe body, the first clamping groove is formed in the surface of the first clamping groove in an integrated mode, a first groove is formed in the bottom of the pipe body, a first sealing gasket is adhered to the inside of the first groove, and the first groove is located on one side of the first clamping groove;

the suction part is integrally formed with the top surface of the tube body;

the liquid suction part comprises a liquid suction head, a clamping block and a second flange, the liquid suction head is clamped at the bottom of the pipe body, the clamping block is fixed on the outer surface of the liquid suction head, a second clamping groove is formed in the outer surface of the upper end of the liquid suction head, the second flange is integrally formed with the surface of the second clamping groove, a second groove is formed in the top surface of the liquid suction head, and a second sealing gasket is adhered to the inner surface of the second groove;

the fixing piece comprises a threaded sleeve and a lath, the threaded sleeve is in threaded connection with the outer surface of the pipe body, a third groove is formed in the threaded sleeve, the lath is integrally formed at the bottom of the surface of the third groove, and a notch matched with the clamping block is formed in the surface of the lath.

In an embodiment of the present invention, the surface of the pipe body is provided with a scale portion.

In an embodiment of the present invention, the surface of the pipe body is provided with a color code, and the color code is located above the scale section.

In an embodiment of the present invention, the outer surface of the pipe body is provided with an external thread matching with the thread bushing.

The utility model discloses an in one embodiment, the suction part is including attracting head, filter core and guard shield, attract head integrated into one piece in the top of body, the filter core is installed attract the inside of head, attract the bottom of head and be fixed with the guard shield, the through-hole has been seted up on the surface of guard shield.

In an embodiment of the present invention, the cross-sectional shape of the shield is an isosceles trapezoid.

In an embodiment of the present invention, the number of the through holes is at least four, and the through holes are circumferentially arranged along the outer surface of the shield.

The utility model discloses an in one embodiment, the bottom of imbibition head is the toper setting, the fixture block symmetry is provided with two.

In an embodiment of the present invention, the first flange and the second flange are respectively disposed in a matching manner with the second groove and the first groove, and the cross section of the second groove and the cross section of the first groove are both arc-shaped.

The utility model discloses an in one embodiment, the width of third recess with the width of fixture block is the phase-match setting, the fixture block with the inner wall sliding connection of third recess.

The utility model has the advantages that: the utility model discloses a serum pipette with high leakproofness that above-mentioned design obtained, during the use, the fixture block with imbibition head surface runs through the opening on lath surface, insert in the inside third recess of thread bush, at this moment, the inside of joint in the first draw-in groove of body bottom will be followed to the second draw-in groove of imbibition head surface, at this moment, rotate the thread bush, make the thread bush along body rebound, lath through the thread bush bottom drives the fixture block and upwards moves a little through lath drive fixture block rebound, and make the second flange take place extrusion seal with the first sealed pad on first recess surface, the sealed pad of second recess top surface takes place extrusion seal with first flange simultaneously, when carrying out the dismouting to the imbibition head like this, can follow inside and outside two directions and seal the pipette, great improvement the leakproofness, guarantee the pipette normal use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic front view of a serological pipette with high sealing performance according to an embodiment of the present invention;

fig. 2 is a schematic front view of a liquid storage tube, a suction part and a liquid suction part of a serological pipette with high sealing performance according to an embodiment of the present invention;

fig. 3 is a schematic front sectional view of a serological pipette with high sealing performance according to an embodiment of the present invention;

FIG. 4 is an enlarged view of the point A in FIG. 3 according to the present invention;

fig. 5 is a schematic perspective view of a serological pipette fixture with high sealing performance according to an embodiment of the present invention;

fig. 6 is a schematic bottom view of a serological pipette fixture with high sealing performance according to an embodiment of the present invention;

FIG. 7 is an enlarged view of the point B in FIG. 3 according to the present invention;

fig. 8 is an enlarged view of the point C in fig. 3 according to the present invention.

In the figure: 100-a liquid storage tube; 110-a tube body; 120-scale section; 130-color scale; 140-external threads; 150-a first card slot; 160-a first flange; 170-a first recess; 180-a first gasket; 200-a suction part; 210-a suction head; 220-a filter element; 230-a shield; 240-through holes; 300-a liquid absorbing part; 310-a liquid suction head; 320-a fixture block; 330-a second card slot; 340-a second flange; 350-a second groove; 360-a second gasket; 400-a fixture; 410-a threaded sleeve; 420-a third groove; 430-laths; 440-gap.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 to simplify the description, but do not indicate or imply that the device or element 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" and "first" 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" or "second" 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 specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1-8, the present invention provides a technical solution: a serological pipette with high sealability comprises a liquid storage tube 100, a suction part 200, a liquid suction part 300 and a fixing member 400.

Suction portion 200 integrated into one piece is used for cooperating with outside pipettor at the top of liquid storage pipe 100 and uses, and imbibition portion 300 is installed in the bottom of liquid storage pipe 100 for absorb the serum, and mounting 400 is used for fixing suction portion 300, guarantees suction portion 300's leakproofness.

Referring to fig. 1, 2, 4 and 7, the liquid storage tube 100 includes a tube body 110 and a first flange 160, a first slot 150 is formed at the bottom of the tube body 110, the first flange 160 is integrally formed on the surface of the first slot 150, a first groove 170 is formed at the bottom of the tube body 110, a first sealing gasket 180 is adhered inside the first groove 170, and the first groove 170 is located at one side of the first slot 150.

The surface of body 110 is provided with scale portion 120, and scale portion 120 is the scale mark for measure the serum, and the surface of body 110 is provided with color mark 130, and color mark 130 is located the top of scale portion 120, and the setting of color mark 130 is used for distinguishing the pipette of different volumes.

Referring to fig. 1 and 8, the suction unit 200 is integrally formed with the top surface of the tube 110, the suction unit 200 includes a suction head 210, a filter element 220 and a protective cover 230, the suction head 210 is integrally formed on the top of the tube 110, the filter element 220 is installed inside the suction head 210, the protective cover 230 is fixed at the bottom of the suction head 210, a through hole 240 is formed on the surface of the protective cover 230, and the suction head 210 is used for connecting with an external pipette.

The cross-sectional shape of guard 230 is isosceles trapezoid, and trapezoidal guard 230's setting can make filter core 220 bottom unsettled, prevents filter core 220 and liquid direct contact, and through-hole 240 is provided with four at least, and through-hole 240 is circumference setting along guard 230's outer surface, and the setting of through-hole 240 can absorb the gas in the pipette, conveniently draws liquid.

Please refer to fig. 1, fig. 2, fig. 4 and fig. 7, the liquid absorbing portion 300 includes a liquid absorbing head 310, a fixture block 320 and a second flange 340, the liquid absorbing head 310 is clamped at the bottom of the tube 110, the fixture block 320 is fixed on the outer surface of the liquid absorbing head 310, a second clamping groove 330 is formed on the outer surface of the upper end of the liquid absorbing head 310, the second flange 340 is integrally formed with the surface of the second clamping groove 330, a second groove 350 is formed on the top surface of the liquid absorbing head 310, a second sealing gasket 360 is adhered to the inner surface of the second groove 350, the bottom of the liquid absorbing head 310 is in a conical shape, two fixture blocks 320 are symmetrically arranged, and the conical liquid absorbing head 310 can be conveniently inserted into the liquid storage bottle.

The first flange 160 and the second flange 340 are respectively matched with the second groove 350 and the first groove 170, and the cross sections of the second groove 350 and the first groove 170 are both arc-shaped, so that the first flange 160 and the second flange 340 can be conveniently attached to the second sealing gasket 360 and the first sealing gasket 180 on the surfaces of the second groove 350 and the first groove 170, extrusion is generated, and sealing is facilitated.

Referring to fig. 1, 2, 4, 5, 6 and 7, the fixing member 400 includes a threaded sleeve 410 and a strip 430, the threaded sleeve 410 is screwed on the outer surface of the tube body 110, a third groove 420 is formed inside the threaded sleeve 410, the strip 430 is integrally formed at the bottom of the surface of the third groove 420, the strip 430 is annular, the inner diameter of the strip 430 is the same as the inner diameter of the threaded sleeve 410, a notch 440 matched with the fixture block 320 is formed on the surface of the strip 430, an external thread 140 matched with the threaded sleeve 410 is formed on the outer surface of the tube body 110, and the external thread 140 is disposed to facilitate the up-and-down movement of the threaded sleeve 410.

The width of the third groove 420 and the width of the fixture block 320 are matched, the fixture block 320 is slidably connected with the inner wall of the third groove 420, the fixture block 320 is conveniently inserted into the third groove 420, the fixture block 320 is driven to move upwards through the threaded sleeve 410, and therefore the first flange 160 and the second flange 340 are attached to the second groove 350 and the second sealing gasket 360 and the first sealing gasket 180 on the surface of the first groove 170 and are extruded, and the sealing performance is improved.

In particular, the working principle of the serological pipette with high sealing performance is as follows: when the suction head is used, the fixture block 320 on the outer surface of the suction head 310 penetrates through the opening 440 on the surface of the lath 430 and is inserted into the third groove 420 in the threaded sleeve 410, at this time, the second clamping groove 330 on the outer surface of the suction head 310 can be clamped in the first clamping groove 150 at the bottom of the tube body 110 along with the second clamping groove 330, at this time, the threaded sleeve 410 is rotated, the threaded sleeve 410 moves upwards along the tube body 110, the lath 430 at the bottom of the threaded sleeve 410 drives the fixture block 320 to move upwards slightly, the second flange 340 and the first sealing gasket 180 on the surface of the first groove 170 are subjected to extrusion sealing, and meanwhile, the second sealing gasket 360 on the top surface of the second groove 350 and the first flange 160 are subjected to extrusion sealing.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A serological pipette with high leak tightness, characterized in that it comprises

The liquid storage tube (100) comprises a tube body (110) and a first flange (160), a first clamping groove (150) is formed in the bottom of the tube body (110), the first clamping groove (150) is formed in the surface of the first clamping groove (150), the first flange (160) is integrally formed on the surface of the first clamping groove (150), a first groove (170) is formed in the bottom of the tube body (110), a first sealing gasket (180) is adhered to the inside of the first groove (170), and the first groove (170) is located on one side of the first clamping groove (150);

a suction part (200), wherein the suction part (200) is integrally formed with the top surface of the pipe body (110);

the liquid absorbing part (300) comprises a liquid absorbing head (310), a clamping block (320) and a second flange (340), the liquid absorbing head (310) is clamped at the bottom of the pipe body (110), the clamping block (320) is fixed on the outer surface of the liquid absorbing head (310), a second clamping groove (330) is formed in the outer surface of the upper end of the liquid absorbing head (310), the second flange (340) and the surface of the second clamping groove (330) are integrally formed, a second groove (350) is formed in the top surface of the liquid absorbing head (310), and a second sealing gasket (360) is adhered to the inner surface of the second groove (350);

the fixing piece (400) comprises a threaded sleeve (410) and a lath (430), the threaded sleeve (410) is screwed on the outer surface of the pipe body (110), a third groove (420) is formed in the threaded sleeve (410), the lath (430) is integrally formed at the bottom of the surface of the third groove (420), and a notch (440) matched with the clamping block (320) is formed in the surface of the lath (430).

2. A serological pipette with high leaktightness according to claim 1, characterized in that the surface of the tubular body (110) is provided with a graduated portion (120).

3. A serological pipette with high leaktightness according to claim 2, characterized in that the surface of said tubular body (110) is provided with a color scale (130), said color scale (130) being located above said graduated portion (120).

4. The serological pipette with high sealability according to claim 1, wherein the outer surface of the tube body (110) is provided with an external thread (140) matching with the threaded sleeve (410).

5. The serological pipette with high sealing performance according to claim 1, wherein the suction part (200) comprises a suction head (210), a filter element (220) and a protective cover (230), the suction head (210) is integrally formed on the top of the tube body (110), the filter element (220) is installed inside the suction head (210), the protective cover (230) is fixed on the bottom of the suction head (210), and a through hole (240) is formed in the surface of the protective cover (230).

6. A serological pipette with high leak tightness according to claim 5, characterized in that the cross-sectional shape of said shield (230) is isosceles trapezoid.

7. The serological pipette with high sealing ability according to claim 5, wherein at least four through holes (240) are provided, and the through holes (240) are circumferentially provided along the outer surface of the shield (230).

8. The serological pipette with high sealing performance according to claim 1, wherein the bottom of the pipette head (310) is provided with a taper shape, and the two clamping blocks (320) are symmetrically provided.

9. A serological pipette with high leak tightness according to claim 1, characterized in that said first flange (160) and said second flange (340) are arranged to match said second groove (350) and said first groove (170), respectively, said second groove (350) and said first groove (170) being curved in cross section.

10. The serological pipette with high sealing performance according to claim 1, wherein the width of the third groove (420) is matched with the width of the fixture block (320), and the fixture block (320) is slidably connected with the inner wall of the third groove (420).