CN215540991U

CN215540991U - Liquid transfer device for taking liquid from reagent bottles with different specifications

Info

Publication number: CN215540991U
Application number: CN202120088853.0U
Authority: CN
Inventors: 邓礼良; 王跃; 姚金美; 赵林川
Original assignee: Suzhou Comin Biotechnology Co ltd
Current assignee: Suzhou Comin Biotechnology Co ltd
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2022-01-18
Anticipated expiration: 2031-01-13

Abstract

The utility model discloses a liquid transfer device for taking liquid from reagent bottles with different specifications, which comprises a liquid transfer device body, wherein a containing channel is arranged on the liquid transfer device body, a slide rod is arranged in the containing channel in a sliding manner, one end of the slide rod penetrates out of the containing channel and is connected with an upper pressure head, the upper pressure head is positioned outside the liquid transfer device body, the other end of the slide rod is connected with a lower pressure head through a reset spring, the lower pressure head is positioned in the containing channel, a chuck seat which can be clamped with suction heads with different specifications is also detachably arranged on the liquid transfer device body, a vent hole, a fixture block, a first chuck table, a second chuck table and a third chuck table are arranged on the chuck seat, the vent hole is communicated with the containing channel, the vent hole is positioned below the lower pressure head, a clamp groove is also arranged on the liquid transfer device body, and the fixture block can be clamped into the clamp groove, realize getting liquid fast to the reagent bottle of different specifications, the cost is reduced effectively.

Description

Liquid transfer device for taking liquid from reagent bottles with different specifications

Technical Field

The utility model relates to the technical field of pipettors, in particular to a pipettor for taking liquid from reagent bottles with different specifications.

Background

A liquid transfer device, also called a liquid transfer gun, is a metering tool for transferring liquid from an original container to another container within a certain range, and is widely used in the fields of biology, chemistry and the like. Pipettes include single-channel pipettes and multi-channel pipettes. The existing single-channel pipettor is provided with a suction head matched with the pipettor and can only take liquid from a reagent bottle matched with the suction head. When taking liquid from reagent bottles of different specifications, the pipettor and the suction head need to be replaced, so that the cost is high, and long time is wasted. Therefore, for the pipettors for extracting liquid from reagent bottles with different specifications, when the reagent bottles with different specifications are extracted, the pipettors and the suction heads need to be replaced, so that the cost is high, and long time is wasted.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model aims to provide the liquid transfer device for taking liquid from reagent bottles with different specifications, so that different suction heads can be conveniently and quickly replaced, the reagent bottles with different specifications can be quickly taken, and the cost is effectively reduced.

In order to achieve the above purposes, the utility model adopts the technical scheme that: a liquid transfer device for taking liquid from reagent bottles with different specifications comprises a liquid transfer device body, wherein a containing channel is arranged on the liquid transfer device body, a slide rod is arranged in the containing channel in a sliding manner, one end of the slide rod penetrates out of the containing channel and is connected with an upper pressure head, the upper pressure head is positioned outside the liquid transfer device body, the other end of the slide rod is connected with a lower pressure head through a reset spring, the lower pressure head is positioned in the containing channel, a chuck seat capable of being clamped with suction heads with different specifications is detachably arranged on the liquid transfer device body, a vent hole, a fixture block, a first chuck table, a second chuck table and a third chuck table are arranged on the chuck seat, the vent hole is communicated with the containing channel and is positioned below the lower pressure head, the fixture block is positioned on one side of the chuck seat, a clamping groove is also arranged on the liquid transfer device body, the fixture block can be clamped into the clamping groove, the first chuck table, the second chuck table and the third chuck table are positioned on the other side of the chuck seat, the diameter of the first chuck table is smaller than that of the second chuck table, the diameter of the second clamping table is smaller than that of the third clamping table.

The liquid transfer device for taking liquid from reagent bottles with different specifications has the advantages that the first clamping table can be clamped with a small-size sucker, the second clamping table can be clamped with a medium-size sucker, or the third clamping table can be clamped with a large-size sucker when liquid in the liquid transfer device is sucked according to the heights of the reagent bottles with different specifications. When the suction head is clamped on the liquid transferring device body, the vent hole is communicated with the suction head. The pressure head is pressed down manually by a user, the upper pressure head, the sliding rod and the lower pressure head are driven to slide downwards, the lower pressure head abuts against the lower end of the accommodating channel, gas in the accommodating channel and the suction head is discharged, and the reset spring is in a contraction state (the reset spring is positioned between the sliding rod and the lower pressure head). According to the size of the suction head, the suction head is placed into a reagent bottle matched with the suction head, a user pulls up the upper pressure head to drive the upper pressure head, the slide rod and the lower pressure head to slide, and simultaneously, under the action of the self elasticity of the reset spring, the upper pressure head, the slide rod and the lower pressure head can be driven to slide, and the reset spring is in an extending state; the user manually controls the upper sliding speed, so that the liquid in the reagent bottle is sucked into the suction head at a constant speed. The pipettor with the structure can conveniently and quickly replace different suction heads, realize quick liquid taking of reagent bottles with different specifications, and effectively reduce the cost.

The liquid transfer device further comprises a liquid transfer device shell, and the liquid transfer device shell is sleeved on the liquid transfer device body. The pipettor shell plays a protective role in the pipettor body.

The liquid transfer device is further improved in that the liquid transfer device shell is of a transparent structure, and scale marks are arranged on the liquid transfer device shell. When in use, a user can more intuitively observe how much liquid is moved.

As a further improvement of the utility model, the upper pressure head is provided with a holding handle. The user can further pull the upper pressure head conveniently, and the sliding rod is driven to slide.

The further improvement of the utility model is that the chuck seat, the vent hole, the clamping block, the first clamping table, the second clamping table and the third clamping table are integrally formed, the vent hole is positioned at the central position of the chuck seat, and the clamping block, the first clamping table, the second clamping table and the third clamping table are all arranged on the chuck seat by taking the vent hole as the center.

As a further improvement of the utility model, the chuck seat, the clamping block, the first clamping table, the second clamping table and the third clamping table are all in an annular structure.

Drawings

FIG. 1 is a structural view of the present embodiment;

fig. 2 is a cross-sectional view of a pipette body according to the present embodiment;

fig. 3 is a structural diagram of the chuck base of the present embodiment.

In the figure:

1-a pipette body; 2-accommodating the channel; 3-a slide bar; 4, an upper pressure head; 5-pressing head; 6-chuck seat; 7-a vent hole; 8-a first clamping table; 9-a second clamping table; 10-a third clamping table; 11-a pipette housing; 12-a return spring; 13-a cartridge; 14-grip handle.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.

Referring to the attached drawings 1-3, the pipette for taking liquid from reagent bottles of different specifications in the embodiment includes a pipette body 1, a receiving channel 2 is arranged on the pipette body 1, a slide rod 3 is slidably arranged in the receiving channel 2, one end of the slide rod 3 penetrates out of the receiving channel 2 and is connected with an upper pressure head 4, the upper pressure head 4 is located outside the pipette body 1, the other end of the slide rod 3 is connected with a lower pressure head 5 through a return spring 12, the lower pressure head 5 is located in the receiving channel 2, a chuck seat 6 capable of being clamped with suction heads of different specifications is detachably arranged on the pipette body 1, a vent hole 7, a fixture block 13, a first chuck 8, a second chuck 9 and a third chuck 10 are arranged on the chuck seat 6, the vent hole 7 is communicated with the receiving channel 2, the vent hole 7 is located below the lower pressure head 5, the fixture block 13 is located on one side of the chuck seat 6, a clamping groove is further arranged on the pipette body 1, the clamping block 13 can be clamped into the clamping groove, the first clamping table 8, the second clamping table 9 and the third clamping table 10 are all located on the other side of the chuck base 6, the diameter of the first clamping table 8 is smaller than that of the second clamping table 9, and the diameter of the second clamping table 9 is smaller than that of the third clamping table 10. Depending on the heights of the reagent bottles of different specifications, the first chuck 8 may be engaged with a small-sized tip, the second chuck 9 may be engaged with a medium-sized tip, or the third chuck 10 may be engaged with a large-sized tip when the liquid in each of the reagent bottles is to be sucked. When the suction head is clamped on the liquid transferring device body 1, the vent hole is communicated with the suction head. The user manually pushes down the upper pressure head 4 to drive the upper pressure head 4, the sliding rod 3 and the lower pressure head 5 to slide downwards, the lower pressure head 5 abuts against the lower end of the accommodating channel 2 to discharge gas in the accommodating channel 2 and the suction head, and the return spring 12 is in a contraction state (the return spring 12 is positioned between the sliding rod 3 and the lower pressure head 5). According to the size of the suction head, the suction head is placed into a reagent bottle matched with the suction head, a user pulls the upper pressure head 4 upwards to drive the upper pressure head 4, the slide rod 3 and the lower pressure head 5 to slide, meanwhile, under the action of the self elastic force of the reset spring 12, the upper pressure head 4, the slide rod 3 and the lower pressure head 5 can also be driven to slide, and the reset spring 12 is in an extending state; the user manually controls the upper sliding speed, so that the liquid in the reagent bottle is sucked into the suction head at a constant speed. The pipettor with the structure can conveniently and quickly replace different suction heads, realize quick liquid taking of reagent bottles with different specifications, and effectively reduce the cost.

The embodiment further comprises a pipette shell 11, and the pipette shell 11 is sleeved on the pipette body 1. Pipette housing 11 protects pipette body 1.

The pipette shell 11 of this embodiment is a transparent structure, and the pipette shell 11 is provided with scale marks. When in use, a user can more intuitively observe how much liquid is moved.

The upper pressure head 4 of the present embodiment is provided with a grip handle 14. The user can further pull the upper pressure head 4, and then the slide 3 rod is driven to slide.

The chuck base 6, the vent hole 7, the fixture block 13, the first chuck table 8, the second chuck table 9 and the third chuck table 10 of the present embodiment are integrally formed, the vent hole 7 is located at the center of the chuck base 6, and the fixture block 13, the first chuck table 8, the second chuck table 9 and the third chuck table 10 are all arranged on the chuck base 6 by taking the vent hole 7 as the center.

The chuck base 6, the fixture block 13, the first clamping table 8, the second clamping table 9 and the third clamping table 10 of the present embodiment are all ring-shaped structures.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.

Claims

1. A pipettor for getting liquid to different specification reagent bottles, its characterized in that: the pipette comprises a pipette body (1), wherein a containing channel (2) is arranged on the pipette body (1), a slide rod (3) is arranged in the containing channel (2) in a sliding manner, one end of the slide rod (3) penetrates out of the containing channel (2) and is connected with an upper pressure head (4), the upper pressure head (4) is positioned outside the pipette body (1), the other end of the slide rod (3) is connected with a lower pressure head (5) through a reset spring (12), the lower pressure head (5) is positioned in the containing channel (2), a chuck seat (6) which can be clamped with suction heads of different specifications in a homogeneous phase is also detachably arranged on the pipette body (1), an air vent (7), a fixture block (13), a first chuck (8), a second chuck (9) and a third chuck (10) are arranged on the chuck seat (6), the air vent (7) is communicated with the containing channel (2), and the air vent (7) is positioned below the lower pressure head (5), the utility model discloses a pipette, including pipette body (1), fixture block (13), draw-in groove, first ka tai (8), second ka tai (9), third ka tai (10) all are located the opposite side of chuck seat (6), the diameter of first ka tai (8) is less than the diameter of second ka tai (9), the diameter of second ka tai (9) is less than the diameter of third ka tai (10), the fixture block (13) is located one side of chuck seat (6), still be provided with the draw-in groove on the pipette body (1), the draw-in groove can be blocked in fixture block (13), first ka tai (8), second ka tai (9), third ka tai (10) diameter.

2. The pipette for pipetting reagent bottles of different sizes according to claim 1, characterized in that: the pipette is characterized by further comprising a pipette shell (11), wherein the pipette shell (11) is sleeved on the pipette body (1).

3. The pipette for taking liquid from reagent bottles of different specifications according to claim 2, wherein: the pipette shell (11) is of a transparent structure, and scale marks are arranged on the pipette shell (11).

4. The pipette for pipetting reagent bottles of different sizes according to claim 1, characterized in that: and a holding handle (14) is arranged on the upper pressure head (4).

5. The pipette for pipetting reagent bottles of different sizes according to claim 1, characterized in that: chuck seat (6), air vent (7), fixture block (13), first ka tai (8), second ka tai (9) and third ka tai (10) are integrated into one piece, air vent (7) are located the central point of chuck seat (6) and put, fixture block (13), first ka tai (8), second ka tai (9) and third ka tai (10) all use air vent (7) to set up on chuck seat (6) as the center.

6. The pipette for pipetting reagent bottles of different sizes according to claim 1, characterized in that: the chuck seat (6), the fixture block (13), the first clamping table (8), the second clamping table (9) and the third clamping table (10) are all of annular structures.