CN213943188U

CN213943188U - Multichannel adjustable pipettor

Info

Publication number: CN213943188U
Application number: CN202022601311.7U
Authority: CN
Inventors: 徐红蕾; 成浩; 刘上楼; 徐凤霞; 王猛
Original assignee: Guangdong Neway Quality Technology Service Co ltd
Current assignee: Guangdong Neway Quality Technology Service Co ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-08-13
Anticipated expiration: 2030-11-11

Abstract

The utility model discloses an adjustable pipettor of multichannel, including vertical fixed plate, bottom plate, fixed orifices, first draw-in groove, second draw-in groove, first slider, first fastening screw, third draw-in groove, cardboard, second slider, second fastening screw, fourth draw-in groove, third slider, move a liquid section of thick bamboo, screw rod, imbibition needle and gasket. The utility model has the advantages that: the bottom plate passes four fixed orificess through the bolt, and be detachable fixed with external fixed plane, guarantee the overall stability of device, and the dismantlement in the later stage of being convenient for, first slider is through first draw-in groove, the second draw-in groove is the gliding type with vertical fixed plate and is connected, can reciprocate the liquid-transfering cylinder, the second slider passes through the third draw-in groove and is sliding type connection around being with first slider, can be with liquid-transfering cylinder back-and-forth movement, the third slider is sliding type connection about being through fourth draw-in groove and second slider, can control the liquid-transfering cylinder and remove.

Description

Multichannel adjustable pipettor

Technical Field

The utility model relates to an adjustable pipettor specifically is an adjustable pipettor of multichannel belongs to pipettor technical field.

Background

The pipettor is also called a pipette gun, is a device for quantitatively transferring liquid, and when the research on the aspect of analysis and test is carried out, a small amount or trace amount of liquid is generally transferred by using the pipettor, the pipettor can be divided into a gas piston type pipettor and an external piston type pipettor according to the principle, the gas piston type pipettor is mainly used for standard pipetting, the external piston type pipettor is mainly used for treating special liquids which are volatile, easy to corrode and viscous, and the like, the correct use method and some detailed operations of the pipettor can be ignored by many people, and the shell has higher impact resistance, corrosion resistance and lower thermal conductivity (such as PVDF material); for the piston, three materials of stainless steel, ceramics and plastics are mainly available on the market, and the stainless steel has good mechanical property and long service life and is only not suitable for the liquid transfer of strong acid and strong alkali; ceramics have high corrosion resistance but poor mechanical properties.

Due to the large demand of pipettors, a plurality of adjustable pipettors are needed to meet the current market demand, and although a plurality of adjustable pipettors are produced on the current market, in general, a lot of common defects still exist, on one hand, most of the existing adjustable pipettors are not provided with a plurality of tracks, so that the pipettors cannot be moved to proper positions when being used, and on the other hand, the side walls of the existing adjustable pipettors are not provided with observation windows, so that the liquid capacity cannot be accurately controlled when being pipetted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an adjustable pipettor of multichannel for solving above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a multi-channel adjustable pipettor comprises a vertical fixing plate, a bottom plate, a fixing hole, a first clamping groove, a second clamping groove, a first sliding block, a first fastening screw, a third clamping groove, a clamping plate, a second sliding block, a second fastening screw, a fourth clamping groove, a third sliding block, a liquid transferring cylinder, a screw rod, a liquid sucking needle and a sealing sheet; the vertical fixing plate is vertically welded and fixed at the center of the bottom plate, the bottom plate is positioned at the bottom of the vertical fixing plate, the fixing holes are arranged at the four corners of the bottom plate in a penetrating manner, the first clamping groove is arranged at the left end of the vertical fixing plate, the second clamping groove is arranged at the right end of the vertical fixing plate, the first slider is horizontally clamped between the left clamping groove and the right clamping groove of the vertical fixing plate through clamping plates, the first fastening screw is screwed and locked at the left end of the vertical fixing plate, the third clamping groove is positioned at the upper end and the lower end of the first slider, the clamping plates are welded and fixed at the left end and the right end of the first slider, the second slider is horizontally clamped in the third clamping groove of the first slider, the second fastening screw is screwed and locked at the top end of the first slider, the fourth clamping groove is concavely arranged at the front side and the rear side of the second slider, the third slider is clamped on the second slider, the screw rod runs through the third sliding block and is screwed in the liquid transferring cylinder, the liquid sucking needle is fixed at the bottom of the liquid transferring cylinder, and the sealing piece is horizontally connected in the inner cavity of the liquid transferring cylinder and connected with the bottom end of the screw rod.

Preferably, in order to guarantee the overall stability of the device and to be convenient for the later stage to dismantle, the bottom plate passes four fixed orificess through the bolt to be detachable fixed with external fixed plane.

Preferably, in order to move the liquid transfer cylinder up and down, the first sliding block is connected with the vertical fixing plate in an up-and-down sliding mode through the first clamping groove and the second clamping groove.

Preferably, in order to move the pipetting cylinder back and forth, the second slide block is connected with the first slide block in a back and forth sliding manner through a third clamping groove.

Preferably, in order to move the pipetting cylinder left and right, the third slide block is connected with the second slide block in a left and right sliding manner through a fourth clamping groove.

Preferably, the pipetting cylinder is provided with two sides, a rectangular observation window is arranged on the side wall of the pipetting cylinder, and the pipetting cylinder is provided with scale marks, so that the volume of the liquid can be accurately controlled through the observation window with the scale marks.

The utility model has the advantages that: this adjustable pipettor reasonable in design, the bottom plate passes four fixed orificess through the bolt, and be detachable fixed with external fixed plane, guarantee the overall stability of device, and the dismantlement in the later stage of being convenient for, first slider is through first draw-in groove, the second draw-in groove is the gliding type with vertical fixed plate and is connected, can reciprocate moving the liquid section of thick bamboo, the second slider passes through third draw-in groove and is sliding type connection around being with first slider, can be with moving the liquid section of thick bamboo back-and-forth movement, the third slider is sliding type connection about being through fourth draw-in groove and second slider, can control moving the liquid section of thick bamboo and control, move the liquid section of thick bamboo and be provided with both sides, and be provided with the rectangle observation window on moving the lateral wall of liquid section of thick bamboo, and be provided with the scale mark, through the observation window that has the scale mark, and then can be accurate when moving the liquid to the capacity of accuse liquid.

Drawings

FIG. 1 is a schematic view of the external structure of the present invention;

FIG. 2 is a partial schematic view of a first slide block of the present invention;

FIG. 3 is a partial schematic view of a pipette of the present invention;

fig. 4 is a schematic sectional view of the liquid transfer cylinder of the present invention.

In the figure: 1. vertical fixed plate, 2, bottom plate, 3, fixed orifices, 4, first draw-in groove, 5, second draw-in groove, 6, first slider, 7, first fastening screw, 8, third draw-in groove, 9, cardboard, 10, second slider, 11, second fastening screw, 12, fourth draw-in groove, 13, third slider, 14, move a liquid section of thick bamboo, 15, screw rod, 16, imbibition needle and 17, gasket.

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. 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.

Referring to fig. 1 to 4, a multichannel adjustable pipette includes a vertical fixing plate 1, a bottom plate 2, a fixing hole 3, a first clamping groove 4, a second clamping groove 5, a first slider 6, a first fastening screw 7, a third clamping groove 8, a clamping plate 9, a second slider 10, a second fastening screw 11, a fourth clamping groove 12, a third slider 13, a liquid transfer cylinder 14, a screw 15, a liquid suction needle 16, and a sealing plate 17; the vertical fixing plate 1 is vertically welded and fixed at the center of the bottom plate 2, the bottom plate 2 is positioned at the bottom of the vertical fixing plate 1, the fixing holes 3 are arranged at the four corners of the bottom plate 2 in a penetrating manner, the first clamping groove 4 is arranged at the left end of the vertical fixing plate 1, the second clamping groove 5 is arranged at the right end of the vertical fixing plate 1, the first slider 6 is horizontally clamped between the left clamping groove and the right clamping groove of the vertical fixing plate 1 through a clamping plate 9, the first fastening screw 7 is screwed and locked at the left end of the vertical fixing plate 1, the third clamping groove 8 is positioned at the upper end and the lower end of the first slider 6, the clamping plates 9 are welded and fixed at the left end and the right end of the first slider 6, the second slider 10 is horizontally clamped and locked in the third clamping groove 8 of the first slider 6, the second fastening screw 11 is screwed and locked at the top end of the first slider 6, and the fourth clamping grooves 12 are arranged at the front side and the back side of the second slider 10 in a concave manner, the third sliding block 13 is clamped on the second sliding block 10, the liquid transferring cylinder 14 is vertically fixed at the bottom of the third sliding block 13, the screw 15 penetrates through the third sliding block 13 and is screwed in the liquid transferring cylinder 14, the liquid suction needle 16 is fixed at the bottom of the liquid transferring cylinder 14, and the sealing sheet 17 is horizontally connected in an inner cavity of the liquid transferring cylinder 14 and is connected with the bottom end of the screw 15.

The bottom plate 2 passes through the four fixing holes 3 through bolts and is detachably fixed with an external fixing plane, the overall stability of the device is guaranteed, later-stage disassembly is facilitated, the first slider 6 is in up-and-down sliding connection with the vertical fixing plate 1 through the first clamping groove 4 and the second clamping groove 5, the liquid transferring cylinder 14 can be moved up and down, the second slider 10 is in front-and-back sliding connection with the first slider 6 through the third clamping groove 8 and can move the liquid transferring cylinder 14 back and forth, the third slider 13 is in left-and-right sliding connection with the second slider 10 through the fourth clamping groove 12 and can move the liquid transferring cylinder 14 left and right, the liquid transferring cylinder 14 is provided with two sides, a rectangular observation window is arranged on the side wall of the liquid transferring cylinder 14, scale marks are arranged, and the capacity of liquid can be accurately controlled through the observation window with the scale marks during liquid transferring.

The working principle is as follows: when using this adjustable pipettor, pass four fixed orificess 3 with bottom plate 2 through the bolt earlier, and fixed with external fixed plane, when using, earlier carry on first slider 6, second slider 10, and third slider 13 respectively about, around, control, realize the multitrack regulation, and then with 16 immigration volumetric flasks of imbibition needle, then rotate screw rod 15, screw rod 15 drives gasket 17 upward movement formation negative pressure and imbibes, when the imbibition, the staff carries out the ration through the observation window on the 14 lateral walls of liquid moving section of thick bamboo.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A multichannel adjustable pipettor, its characterized in that: the device comprises a vertical fixing plate (1), a bottom plate (2), a fixing hole (3), a first clamping groove (4), a second clamping groove (5), a first sliding block (6), a first fastening screw (7), a third clamping groove (8), a clamping plate (9), a second sliding block (10), a second fastening screw (11), a fourth clamping groove (12), a third sliding block (13), a liquid transfer cylinder (14), a screw rod (15), a liquid suction needle (16) and a sealing sheet (17); the vertical fixing plate (1) is vertically welded and fixed at the center of the bottom plate (2), the bottom plate (2) is positioned at the bottom of the vertical fixing plate (1), the fixing hole (3) is arranged at the four corners of the bottom plate (2) in a penetrating manner, the first clamping groove (4) is arranged at the left end of the vertical fixing plate (1), the second clamping groove (5) is arranged at the right end of the vertical fixing plate (1), the first sliding block (6) is horizontally clamped between the left clamping groove and the right clamping groove of the vertical fixing plate (1) through a clamping plate (9), the first fastening screw (7) is screwed and locked at the left end of the vertical fixing plate (1), the third clamping groove (8) is positioned at the upper end and the lower end of the first sliding block (6), the clamping plate (9) is welded and fixed at the left end and the right end of the first sliding block (6), the second sliding block (10) is horizontally clamped in the third clamping groove (8) of the first sliding block (6), second fastening screw (11) are twisted soon and are locked on the top of first slider (6), fourth draw-in groove (12) are the front and back both sides of indent formula setting at second slider (10), third slider (13) card is on second slider (10), move the vertical bottom of fixing at third slider (13) of liquid section of thick bamboo (14), screw rod (15) run through third slider (13) and twist soon in moving liquid section of thick bamboo (14), imbibition needle (16) are fixed in the bottom of moving liquid section of thick bamboo (14), sealing piece (17) horizontal connection move in the inside cavity of liquid section of thick bamboo (14) and be connected with screw rod (15) bottom.

2. The multichannel adjustable pipette according to claim 1, wherein: the bottom plate (2) passes through the four fixing holes (3) through bolts and is detachably fixed with the external fixing plane.

3. The multichannel adjustable pipette according to claim 1, wherein: the first sliding block (6) is connected with the vertical fixing plate (1) in an up-and-down sliding mode through the first clamping groove (4) and the second clamping groove (5).

4. The multichannel adjustable pipette according to claim 1, wherein: the second sliding block (10) is connected with the first sliding block (6) in a front-back sliding mode through a third clamping groove (8).

5. The multichannel adjustable pipette according to claim 1, wherein: the third sliding block (13) is connected with the second sliding block (10) in a left-right sliding mode through a fourth clamping groove (12).

6. The multichannel adjustable pipette according to claim 1, wherein: the liquid transferring cylinder (14) is provided with two sides, and a rectangular observation window is arranged on the side wall of the liquid transferring cylinder (14) and is provided with scale marks.