CN214020883U

CN214020883U - Pipettor for cell preparation

Info

Publication number: CN214020883U
Application number: CN202022906021.3U
Authority: CN
Inventors: 余鹏程; 刘世勇; 刘洋; 李雪野; 黎北泽; 李锐
Original assignee: Yunnan Heze Southwest Biological Science And Technology Co ltd
Current assignee: Yunnan Heze Southwest Biological Science And Technology Co ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-08-24
Anticipated expiration: 2030-12-07

Abstract

The utility model discloses a pipettor for cell preparation, include the barrel and move the liquid head, move liquid head fixed connection at the downside of barrel, the inboard of barrel is equipped with cushion chamber and stock solution chamber, the inboard sliding connection in stock solution chamber has the piston, the upside fixedly connected with guide arm of piston, the guide arm runs through the inboard of barrel to fixedly connected with presses the piece, the inboard of cushion chamber is equipped with the elastic component who is used for absorbing liquid, be equipped with on the barrel and be used for spacing subassembly. The utility model discloses, through setting up spacing subassembly for first magnet gets into the spacing groove under the appeal of second magnet, thereby avoids first slider to move in vertical direction, and the staff need not press always and press the piece this moment, thereby practices thrift physical power.

Description

Pipettor for cell preparation

Technical Field

The utility model relates to a pipettor technical field especially relates to a pipettor for cell preparation.

Background

The pipettor is also called a pipette gun, which is a device for quantitatively transferring liquid, and when research on analytical tests is performed, the pipettor is generally used for transferring a small amount or trace amount of liquid, and the pipettor can be classified into a gas piston type pipettor and an external piston type pipettor according to the principle.

The pipettor is a precision instrument, and must keep correct posture when using to the dynamics of holding when using needs control, and current pipettor all has only been equipped with a thumb couple, leads to can making the palm of holding the pipettor feel ache when using for a long time, has reduced the efficiency of work.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving following shortcoming among the prior art, current pipettor has all only been equipped with a thumb couple, leads to will making the palm of holding the pipettor feel the ache when using for a long time, has reduced the efficiency of work, and the pipettor is used in a cell preparation that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a pipettor for cell preparation, includes the barrel and moves the liquid head, move liquid head fixed connection at the downside of barrel, the inboard of barrel is equipped with cushion chamber and liquid storage chamber, the inboard sliding connection in liquid storage chamber has the piston, the upside fixedly connected with guide arm of piston, the guide arm runs through the inboard of barrel to fixedly connected with presses the piece, the inboard of cushion chamber is equipped with the elastic component who is used for absorbing liquid, be equipped with on the barrel and be used for spacing subassembly.

Preferably, the elastic assembly comprises a first sliding block sleeved on the guide rod, the first sliding block is elastically connected to the inner top of the buffer cavity through a first spring, and the first spring is sleeved on the outer side of the guide rod.

Preferably, spacing subassembly is including setting up the mounting groove on first slider, the inboard sliding connection of mounting groove has the second slider, the second slider passes through the inboard of second spring elastic connection at the mounting groove, the first magnet of one side fixedly connected with of second spring is kept away from to the second slider, the inboard equidistant spacing of cushion chamber is equipped with a plurality of spacing grooves that match with first magnet and fit, be equipped with the magnetite subassembly on the barrel.

Preferably, the magnetite subassembly is including setting up the guide way on the barrel, the inboard sliding connection of guide way has the second magnet, the one end fixedly connected with handle that first magnet was kept away from to the second magnet, be equipped with the opening that supplies the handle motion on the barrel.

Preferably, the first magnet and the second magnet have opposite magnetic poles on the opposite surfaces.

Preferably, four grooves for fingers to hold are formed in the outer side of the cylinder body, and the four grooves are arranged in an arc shape.

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

1. by arranging the limiting component, when the pipettor needs to wait for a long time during use, the handle is stirred by fingers, so that the second magnet is opposite to the first magnet, the first magnet enters the limiting groove under the attraction of the second magnet, and the first spring does not rebound to move when a person presses the pressing block, so that the pressing block is replaced by a worker to be pressed all the time, and the working efficiency is improved;

2. through setting up elastic component, before the imbibition, with the thumb extrusion press the piece, press the piece and drive guide arm and piston downstream, first spring is also in compression state, slowly releases again and presses the piece, first spring drives first slider upward movement, and first slider drives guide arm and piston upward movement to inhale liquid storage chamber with liquid, reach the purpose of shifting liquid.

Drawings

Fig. 1 is a schematic front structural view of a pipette for cell preparation according to the present invention;

fig. 2 is a schematic top view of a pipette for cell preparation according to the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 1.

In the figure: the liquid transferring device comprises a cylinder 1, a liquid transferring head 2, a piston 3, a guide rod 4, a pressing block 5, a buffer cavity 6, a liquid storage cavity 7, a first sliding block 8, a first spring 9, a second sliding block 10, a second spring 11, a first magnet 12, a limiting groove 13, a second magnet 14, a guide groove 15, a handle 16, an opening 17 and a groove 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the present invention, the terms "upper", "lower", "left", "right", "middle" and "one" are used for clarity of description, but not for limiting the range of the present invention, and the relative relationship changes or adjustments without substantial technical changes should be regarded as the scope of the present invention.

Referring to fig. 1-3, a pipettor for cell preparation, including barrel 1 and move liquid head 2, move liquid head 2 fixed connection in the downside of barrel 1, the inboard of barrel 1 is equipped with buffer chamber 6 and stock solution chamber 7, the inboard sliding connection of stock solution chamber 7 has piston 3, the upside fixedly connected with guide arm 4 of piston 3, guide arm 4 runs through the inboard of barrel 1 to fixedly connected with presses movable block 5, the inboard of buffer chamber 6 is equipped with the elastic component who is used for absorbing liquid, be equipped with on the barrel 1 and be used for spacing subassembly.

Elastic component is equipped with first slider 8 on guide arm 4 including the cover, first slider 8 is at the interior top of cushion chamber 6 through first spring 9 elastic connection, first spring 9 cover is established in the outside of guide arm 4, before the imbibition, press piece 5 with the thumb extrusion, press piece 5 to drive guide arm 4 and 3 downstream of piston, first spring 9 also is in compression state, slow release presses piece 5 again, first spring 9 drives first slider 8 upward movement, first slider 8 drives guide arm 4 and 3 upward movements of piston, thereby inhale liquid stock solution chamber 7, reach the purpose of shifting liquid.

Spacing subassembly is including setting up the mounting groove on first slider 8, the inboard sliding connection of mounting groove has second slider 10, second slider 10 passes through second spring 11 elastic connection in the inboard of mounting groove, one side fixedly connected with first magnet 12 of second slider 10 keeping away from second spring 11, the inboard equidistant spacing of cushion chamber 6 is equipped with a plurality of spacing grooves 13 that match with first magnet 12 and suit, be equipped with the magnetite subassembly on barrel 1, when the pipettor needs to wait for a long time, dial handle 16 with the finger, make second magnet 14 relative with first magnet 12, first magnet 12 gets into spacing groove 13 under the appeal of second magnet 14, do not need the people to press at this moment and press piece 5, rebound motion can not also take place for first spring 9, thereby replace the staff to press piece 5 always, and the work efficiency is improved.

The magnet subassembly is including setting up guide way 15 on barrel 1, and the inboard sliding connection of guide way 15 has second magnet 14, and the one end fixedly connected with handle 16 that first magnet 12 was kept away from to second magnet 14 is equipped with the opening 17 that supplies the motion of handle 16 on the barrel 1.

The first magnet 12 has a magnetic pole opposite to the opposite side of the second magnet 14.

Four grooves 18 for fingers to hold are formed in the outer side of the barrel body 1, the four grooves 18 are arranged in an arc shape, so that a worker can hold the barrel body 1 conveniently, and the slipping is avoided.

In the utility model, the pressing block 5 is pressed by hand, the pressing block 5 drives the guide rod 4 to move downwards, the guide rod 4 drives the piston 3 to move downwards, meanwhile, the first spring 9 is in a compressed state, the pressing block 5 is slowly loosened, the first spring 9 is restored to the original position, so that the first slide block 8 moves upwards, the first slide block 8 drives the guide rod 4 to move upwards, and the guide rod 4 drives the piston 3 to move upwards, so that the liquid is sucked into the liquid storage cavity 7;

when liquid is transferred, the pressing block 5 needs to be pressed, the pressing block 5 drives the piston 3 to move downwards through the guide rod 4, so that liquid is extruded out, waiting is long in the partial liquid transfer process, the handle 16 is shifted at the moment, the handle 16 drives the second magnet 14 to move until the second magnet 14 is opposite to the first magnet 12, and the first magnet 12 enters the limiting groove 13 under the attraction of the second magnet 14 due to the fact that the magnetic poles of the opposite sides of the first magnet 12 and the second magnet 14 are opposite, so that the situation that the first spring 9 drives the first sliding block 8 to move after the pressing block 5 loses the fixation of hands is prevented.

In the present application, the terms "mounted," "connected," and "secured" are to be construed broadly unless otherwise specifically indicated and limited.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a pipettor for cell preparation, includes barrel (1) and moves liquid head (2), its characterized in that, move liquid head (2) fixed connection at the downside of barrel (1), the inboard of barrel (1) is equipped with cushion chamber (6) and stock solution chamber (7), the inboard sliding connection of stock solution chamber (7) has piston (3), upside fixedly connected with guide arm (4) of piston (3), the inboard of barrel (1) is run through in guide arm (4) to fixedly connected with presses movable block (5), the inboard of cushion chamber (6) is equipped with the elastic component who is used for absorbing liquid, be equipped with on barrel (1) and be used for spacing subassembly.

2. The pipette for cell preparation according to claim 1, wherein the elastic assembly comprises a first slide block (8) sleeved on the guide rod (4), the first slide block (8) is elastically connected to the inner top of the buffer cavity (6) through a first spring (9), and the first spring (9) is sleeved on the outer side of the guide rod (4).

3. The pipette for cell preparation according to claim 2, wherein the limiting component comprises a mounting groove arranged on the first slider (8), a second slider (10) is slidably connected to the inner side of the mounting groove, the second slider (10) is elastically connected to the inner side of the mounting groove through a second spring (11), a first magnet (12) is fixedly connected to one side of the second slider (10) far away from the second spring (11), a plurality of limiting grooves (13) matched with the first magnet (12) are arranged on the inner side of the buffer cavity (6) at equal intervals, and a magnet component is arranged on the barrel (1).

4. The pipette for cell preparation according to claim 3, wherein the magnet assembly comprises a guide groove (15) arranged on the barrel body (1), a second magnet (14) is slidably connected to the inner side of the guide groove (15), a handle (16) is fixedly connected to one end, far away from the first magnet (12), of the second magnet (14), and an opening (17) for moving the handle (16) is formed in the barrel body (1).

5. The pipette for cell preparation according to claim 4, wherein the first magnet (12) and the second magnet (14) have opposite magnetic poles on opposite sides.

6. The pipette for cell preparation according to claim 1, wherein four grooves (18) for holding fingers are formed in the outer side of the barrel (1), and the four grooves (18) are all arranged in an arc shape.