CN219003117U - High leakproofness's pipettor suction head - Google Patents

Abstract

The utility model discloses a pipette tip with high sealing performance, which comprises a body, wherein the body comprises a tube head and a tube body, the tube head and the tube body are mutually communicated, a sealing mechanism is arranged at an opening part of one end of the tube head far away from the tube body, an anti-slip mechanism is arranged at the periphery of one end of the tube head near the tube body, and a separation block for buffering liquid is arranged inside the tube head, and has the beneficial effects that: according to the pipette tip, the joint of the tip and the pipette is sealed by arranging the sealing mechanism, namely the sealing ring, so that bubbles in the process of sucking liquid are reduced, and the pipette tip is further provided with a plurality of anti-skid grooves, so that the pipette tip is easier to operate in the process of loading and unloading.

Description

High leakproofness's pipettor suction head

Technical Field

The utility model relates to the field of pipettors, in particular to a pipette suction head with high sealing performance.

Background

Pipette tips are used with pipettes and other metering devices, in particular in medical, biological, biochemical and chemical laboratories, for metering liquids. Hereinafter, the pipettes and other metering devices are generally referred to as "pipetting devices". The pipette tip has an elongated, tubular body with a lower opening at a lower end for passing liquid and an upper opening at an upper end for clamping onto a hub of a pipetting device. The pipette tip generally has a generally conical shape with a cross section that increases from a lower opening toward an upper opening.

The conventional pipette tips are usually assembled and disassembled in a plug-in mode, but the conventional pipette tips are easy to leak in the use process, and bubbles and other phenomena appear in the liquid in the pipette tips after the liquid is sucked, so that a pipette tip with good sealing performance is needed.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a pipette tip with high sealing performance, which solves the problem of poor sealing performance of the tip in the background art.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a high leakproofness's pipettor suction head, includes the body, the body includes tube head and pipe shaft, tube head and pipe shaft link up each other, the opening part that tube shaft one end was kept away from to the tube head is equipped with sealing mechanism, the periphery that tube head is close to pipe shaft one end is equipped with anti-skidding mechanism, the inside separation piece that is used for buffering liquid that is equipped with of tube head.

Preferably, the pipe head is a cylinder with openings at two ends and a cavity inside, a clamping groove in mirror image arrangement is formed in the section of one end of the pipe head, which is far away from the pipe body, and the separation block is a cylinder and is fixed on the inner wall of the pipe head;

the effect of setting up the separation piece is too much in the twinkling of an eye and leads to causing the damage to the pipettor, because there is metal spare part in the pipettor is inside, if the operation can not be to making the too much in the twinkling of an eye entering pipettor inside of liquid, lead to inside metal spare part to take place oxidation, perhaps damage, set up the separation piece can have fine guard action to the pipettor.

Preferably, the pipe body is a cone with two open ends and a cavity inside, and a suction inlet is arranged at one end of the pipe body far away from the pipe head;

the suction inlet opening is smaller to more conveniently suck the liquid.

Preferably, the tube head and the tube body are integrally formed;

the tube head and the tube body are integrally formed during preparation, so that the tube head and the tube body are prevented from being misplaced after being stored for a long time and the external force is overlarge, or the tube head and the tube body are easy to paste and make mistakes during preparation, and the internal volume is changed, leakage occurs and the like.

Preferably, the anti-skid mechanism comprises a plurality of anti-skid grooves, and the anti-skid grooves are formed in the periphery of the pipe head in an annular array by taking the axis of the pipe head as the circle center;

the anti-slip mechanism, namely a plurality of anti-slip grooves, is arranged to increase friction force, so that the suction head is convenient to assemble and disassemble on the pipette.

Preferably, the sealing mechanism comprises a sealing ring comprising:

the inner diameter and the outer diameter of the silica gel ring are consistent with those of the tube head;

the fixed ring is embedded in the silica gel ring;

the silica gel block is fixed at the bottom of the silica gel ring in a mirror image mode and is tightly clamped in the clamping groove of the pipe head;

the fixed ring that sets up is located the inside of silica gel ring, and its effect is the effect that plays the support to whole sealing ring, avoids whole sealing ring too soft to lead to loading and unloading to get up more troublesome.

Compared with the prior art, the utility model has the following beneficial effects: according to the pipette tip, the joint of the tip and the pipette is sealed by arranging the sealing mechanism, namely the sealing ring, so that bubbles in the process of sucking liquid are reduced, and the pipette tip is further provided with a plurality of anti-skid grooves, so that the pipette tip is easier to operate in the process of loading and unloading.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is an overall view of the present utility model;

FIG. 2 is a schematic view of a tube head removal seal mechanism of the present utility model;

FIG. 3 is a schematic view of a cartridge with a sealing mechanism according to the present utility model;

FIG. 4 is a cross-sectional view of a seal ring of the present utility model;

FIG. 5 is an enlarged view of the utility model at A of FIG. 1;

wherein: 1. a body; 2. a tube head; 3. a pipe body; 4. a separation block; 5. a clamping groove; 6. a suction inlet; 7. an anti-slip mechanism; 8. an anti-skid groove; 9. a sealing mechanism; 10. a seal ring; 11. a silica gel ring; 12. a fixing ring; 13. and a silica gel block.

Detailed Description

In order to more clearly illustrate the general inventive concept, a detailed description is given below by way of example with reference to the accompanying drawings.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, the description with reference to the terms "one aspect," "some aspects," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the present utility model. In this specification, the schematic representations of the above terms are not necessarily for the same scheme or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.

Examples:

as shown in fig. 1 to 5, the present utility model provides a pipette tip with high sealing performance, comprising a body 1, characterized in that: the body 1 includes tube head 2 and pipe shaft 3, tube head 2 and pipe shaft 3 link up each other, the opening part that tube head 2 kept away from pipe shaft 3 one end is equipped with sealing mechanism 9, the periphery that tube head 2 is close to pipe shaft 3 one end is equipped with anti-skidding mechanism 7, the inside separation piece 4 that is used for buffering liquid that is equipped with of tube head 2.

In this embodiment, specifically, the tube head 2 is a cylinder with openings at two ends and a cavity inside, the section of one end of the tube head 2 far away from the tube body 3 is provided with a mirror image-arranged clamping groove 5, and the separation block 4 is a cylinder and is fixed on the inner wall of the tube head 2.

In this embodiment, specifically, the pipe body 3 is a cone with two open ends and a cavity inside, and a suction inlet 6 is provided at one end of the pipe body 3 far away from the pipe head 2;

the center of the suction inlet 6 and the center of the tube head 2 are located on the same axis, i.e. concentricity is relatively accurate.

In this embodiment, specifically, the pipe head 2 and the pipe body 3 are integrally formed.

In this embodiment, specifically, the anti-slip mechanism 7 includes a plurality of anti-slip grooves 8, and a plurality of anti-slip grooves 8 are formed in an annular array around the axis of the pipe head 2 as the center of the circle and are formed at the periphery of the pipe head 2;

the anti-slip groove 8 can be formed on the periphery of the pipe head 2, and the formed anti-slip groove 8 can be replaced by other patterns, or the formed groove body can be replaced by a strip-shaped object fixed on the periphery of the pipe head 2.

In this embodiment, specifically, the sealing mechanism 9 includes a sealing ring 10, and the sealing ring 10 includes:

a silica gel ring 11, wherein the inner diameter and the outer diameter of the silica gel ring 11 are consistent with those of the tube head 2;

a fixing ring 12, wherein the fixing ring 12 is embedded in the silica gel ring 11;

the silica gel block 13 is fixed at the bottom of the silica gel ring 11 in a mirror image mode and is tightly clamped in the clamping groove 5 of the pipe head 2;

the material of the fixing ring 12 may be a metal material or other harder materials, so that it can support the sealing ring 10 to facilitate assembly and disassembly.

Working principle: when the anti-slip device is used, firstly, the sealing ring 10 of the sealing mechanism 9 is arranged at the pipe head 2 of the suction head, the silica gel ring 11 is pinched, the silica gel block 13 is clamped in the clamping groove 5, then, the suction head with the sealing mechanism 9 is arranged on the liquid transfer device, and the anti-slip groove 8 of the pipe head 2 is pinched to be clamped with the liquid transfer device, so that the installation can be completed, and the use is started.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A pipette tip with high tightness, comprising a body (1), characterized in that: the body (1) comprises a tube head (2) and a tube body (3), the tube head (2) and the tube body (3) are mutually communicated, a sealing mechanism (9) is arranged at an opening part of one end of the tube body (3) away from the tube head (2), an anti-slip mechanism (7) is arranged on the periphery of one end, close to the tube body (3), of the tube head (2), and a separation block (4) for buffering liquid is arranged inside the tube head (2).

2. A highly sealed pipette tip as defined in claim 1 wherein: the pipe head (2) is a cylinder with openings at two ends and a cavity inside, a clamping groove (5) arranged in a mirror image mode is formed in the section of one end, far away from the pipe body (3), of the pipe head (2), and the separation block (4) is a cylinder and is fixed on the inner wall of the pipe head (2).

3. A highly sealed pipette tip as defined in claim 1 wherein: the pipe body (3) is a cone with openings at two ends and a cavity inside, and a suction inlet (6) is arranged at one end of the pipe body (3) far away from the pipe head (2).

4. A highly sealed pipette tip as defined in claim 1 wherein: the pipe head (2) and the pipe body (3) are integrally formed.

5. A highly sealed pipette tip as defined in claim 1 wherein: the anti-skid mechanism (7) comprises a plurality of anti-skid grooves (8), and the anti-skid grooves (8) are formed in an annular array around the axis of the pipe head (2) as the center of a circle and are arranged on the periphery of the pipe head (2).

6. A highly sealed pipette tip as defined in claim 1 wherein: the sealing mechanism (9) comprises a sealing ring (10), the sealing ring (10) comprising:

the inner diameter and the outer diameter of the silica gel ring (11) are consistent with those of the tube head (2);

the fixing ring (12), the said fixing ring (12) is embedded in the inside of the silica gel ring (11);

the silica gel block (13), silica gel block (13) mirror image is fixed in silica gel ring (11) bottom to inseparable joint is in draw-in groove (5) of tube head (2).

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