CN216396397U

CN216396397U - Multichannel pipettor

Info

Publication number: CN216396397U
Application number: CN202123010745.0U
Authority: CN
Inventors: 尹军
Original assignee: Jiangsu Taizhou Kangmeng Medical Supplies Co ltd
Current assignee: Jiangsu Taizhou Kangmeng Medical Supplies Co ltd
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-04-29
Anticipated expiration: 2031-12-02

Abstract

The utility model relates to a multichannel pipettor, which comprises a shell, a liquid taking mechanism and an adjusting mechanism, wherein a sleeve is fixedly arranged on the upper surface of the shell, a pressing rod penetrating through the sleeve and the shell and extending to the inner cavity of the shell is movably arranged above the sleeve, the bottom of the pressing rod is provided with the liquid taking mechanism, the adjusting mechanism is arranged on the rear side of the liquid taking mechanism, the liquid taking mechanism comprises a connecting plate fixedly arranged on the lower surface of the pressing rod and a cross rod fixedly arranged in the inner cavity of the shell, and a first liquid taking barrel is fixedly arranged on the lower surface of the connecting plate. This multichannel pipettor, through rotating the threaded rod, and then drive the riser and reciprocate, and when the riser reciprocated, can drive a plurality of seconds and get a liquid section of thick bamboo and remove, a plurality of seconds are got a liquid section of thick bamboo simultaneously and are got under the limiting displacement of horizontal pole and fixed plate, can only remove to the first both sides of getting a liquid section of thick bamboo, and remove the interval the same, and then adjust a plurality of seconds and get a liquid section of thick bamboo and first get distance between the liquid section of thick bamboo.

Description

Multichannel pipettor

Technical Field

The utility model relates to the technical field of pipettors, in particular to a multi-channel pipettor.

Background

A liquid transfer device, also called a pipette, 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 in clinical laboratories due to the reasons of simple basic structure, convenient use and the like.

In a laboratory, liquid is often transferred by a multi-channel pipette, but the existing multi-channel pipette has certain inconvenience in use.

When using multichannel pipettor in the laboratory, often can touch the different containers of multiple interval, but current multichannel pipettor generally can't adjust, can only use to the container of specific interval is supporting, and multiple different containers just need supporting a plurality of different multichannel pipettors, causes the cost to increase.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a multi-channel liquid transfer device which has the advantages of adjustable space and the like, and solves the problems that the conventional multi-channel liquid transfer device cannot be adjusted generally, cannot be adapted to various containers, needs to be matched with a plurality of different multi-channel liquid transfer devices and causes cost increase.

In order to achieve the purpose, the utility model provides the following technical scheme: a multichannel pipettor comprises a shell, a liquid taking mechanism and an adjusting mechanism, wherein a sleeve is fixedly arranged on the upper surface of the shell, a pressing rod penetrating through the sleeve and the shell and extending to the inner cavity of the shell is movably arranged above the sleeve, the bottom of the pressing rod is provided with the liquid taking mechanism, and the adjusting mechanism is arranged on the rear side of the liquid taking mechanism;

the liquid taking mechanism comprises a connecting plate fixedly arranged on the lower surface of the pressing rod and a cross rod fixedly arranged in an inner cavity of the shell, a first liquid taking barrel is fixedly arranged on the lower surface of the connecting plate, the bottom of the first liquid taking barrel penetrates through and extends to the outside of the shell, a first sliding block penetrating through and extending to the lower part of the connecting plate is movably connected to the upper surface of the connecting plate, a second liquid taking barrel positioned on one side of the first liquid taking barrel is fixedly arranged on the lower surface of the first sliding block, the bottom of the second liquid taking barrel penetrates through and extends to the outside of the shell, fixed plates are fixedly arranged on the front surface and the rear surface of the first liquid taking barrel and the front surface of the second liquid taking barrel, and the fixed plates are movably connected to the surface of the cross rod on the front side;

adjustment mechanism includes swing joint in the casing inner chamber and runs through and extend to the outside threaded rod of casing and fixed mounting in the montant of casing inner chamber, the equal swing joint of surface of threaded rod and montant has the movable block, movable block and threaded rod threaded connection, two the equal fixed mounting of opposite face of movable block has the riser, the through-hole has been seted up on the surface of riser, swing joint has the second slider in the through-hole, the surface and the rear fixed plate fixed connection of second slider.

Further, the lower surface of the shell is provided with a rectangular through hole communicated with the inner cavity, and the width of the rectangular through hole is larger than the width of the bottoms of the first liquid taking cylinder and the second liquid taking cylinder.

Further, a handle is fixedly mounted on the upper surface of the pressing rod, and the overlooking cross section of the connecting plate is a rectangular ring.

Further, the side view cross-section of first slider is the I shape, and the quantity of first slider is a plurality of, and evenly distributes in the left and right sides of first liquid section of thick bamboo.

Furthermore, the number of the second liquid taking cylinders corresponds to the number of the first sliding blocks one by one, and the distances among the second liquid taking cylinders are the same.

Further, the quantity of fixed plate is two to one with the quantity of first slider and corresponds, the last fixed surface of threaded rod installs the handle.

Furthermore, the quantity of through-hole and the quantity one-to-one of first slider, and both sides through-hole slope distributes in the surface of riser, and the gradient is crescent to both sides from the centre.

Furthermore, the side-looking cross section of the second sliding block is I-shaped, and the number of the second sliding blocks corresponds to the number of the first sliding blocks one to one.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

this multichannel pipettor, through being equipped with liquid mechanism and adjustment mechanism of getting, when needs adjust the interval, only need through rotating the threaded rod, and then drive the riser and reciprocate, and when the riser reciprocated, can drive a plurality of seconds and get a liquid section of thick bamboo and remove, a plurality of seconds are got a liquid section of thick bamboo simultaneously and are moved to the first both sides of getting a liquid section of thick bamboo under the limiting displacement of horizontal pole and fixed plate, and it is the same to remove the interval, and then adjust a plurality of seconds and get a liquid section of thick bamboo and the first distance of getting between the liquid section of thick bamboo, and then realized interval adjustable purpose.

Drawings

FIG. 1 is a front cross-sectional view of the present invention;

FIG. 2 is a rear cross-sectional view of the present invention;

FIG. 3 is a top cross-sectional view of the present invention;

fig. 4 is a bottom cross-sectional view of the present invention.

In the figure: the device comprises a shell 1, a sleeve 2, a pressing rod 3, a connecting plate 4, a first liquid taking barrel 5, a first sliding block 6, a second liquid taking barrel 7, a fixed plate 8, a transverse rod 9, a threaded rod 10, a vertical rod 11, a movable block 12, a vertical plate 13, a through hole 14 and a second sliding block 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a multichannel pipettor in this embodiment includes a housing 1, a liquid taking mechanism and an adjusting mechanism, a rectangular through hole communicated with an inner cavity is formed in a lower surface of the housing 1, and further a component for taking liquid can extend to a bottom of the housing 1, so that a liquid taking operation can be performed, a sleeve 2 is fixedly installed on an upper surface of the housing 1, a pressing rod 3 penetrating through the sleeve 2 and the housing 1 and extending to the inner cavity of the housing 1 is movably installed above the sleeve 2, a handle convenient for pressing and stretching is fixedly installed on the upper surface of the pressing rod 3, the liquid taking mechanism is installed at the bottom of the pressing rod 3, the component in the liquid taking mechanism is driven to work by up and down movement of the pressing rod 3, the liquid taking operation is performed, the adjusting mechanism is installed on a rear side of the liquid taking mechanism, and a liquid taking interval of the liquid taking mechanism is changed by adjustment of the adjusting mechanism.

Referring to fig. 1 to 4, in order to extract liquid, the liquid extracting mechanism in this embodiment includes a connecting plate 4 fixedly mounted on a lower surface of a pressing rod 3, a top cross section of the connecting plate 4 is a rectangular ring, a first liquid extracting cylinder 5 is fixedly mounted on a lower surface of the connecting plate 4, a bottom of the first liquid extracting cylinder 5 penetrates through a rectangular through hole on a lower surface of a housing 1 and extends to an outside of the housing 1, a first slider 6 penetrating and extending to a lower side of the connecting plate 4 is slidably connected to an upper surface of the connecting plate 4, the first slider 6 is provided in a plurality of numbers and evenly distributed on left and right sides of the first liquid extracting cylinder 5, a side cross section of the first slider 6 is i-shaped, the first slider 6 is evenly distributed on left and right sides of the first liquid extracting cylinder 5, the first slider 6 can slide on a surface of the connecting plate 4 and cannot move up and down, and second liquid extracting cylinders 7 located on two sides of the first liquid extracting cylinder 5 are fixedly mounted on lower surfaces of the first slider 6 And the distance between the liquid section of thick bamboo 7 is got to a plurality of second is the same, and get liquid section of thick bamboo 7 near the first two seconds of getting liquid section of thick bamboo 5, it is also the same with the first interval of getting liquid section of thick bamboo 5, get liquid section of thick bamboo 7 through the first liquid section of thick bamboo 5 of getting and the second and get liquid, the bottom of liquid section of thick bamboo 7 is got to the second runs through 1 lower surface rectangle through-hole of casing and extends to the casing 1 outside, the first liquid section of thick bamboo 5 of getting and the equal fixed mounting in surface has fixed plate 8 around the liquid section of thick bamboo 7 is got to a plurality of second, and the quantity of fixed plate 8 and the quantity of first slider 6 are two to one and correspond.

Get liquid mechanism still including fixed mounting in the horizontal pole 9 of 1 inner chamber of casing, and the equal sliding connection in the surface of horizontal pole 9 of a plurality of front side fixed plate 8, because front side fixed plate 8 can only slide in the surface of horizontal pole 9, and then make first get liquid section of thick bamboo 5 and a plurality of second and get liquid section of thick bamboo 7 and also can only horizontal migration.

Referring to fig. 1-3, in order to adjust the distance, the adjusting mechanism in this embodiment includes a threaded rod 10 rotatably connected to the inner cavity of the housing 1 and extending to the outside of the housing 1, and a vertical rod 11 fixedly installed in the inner cavity of the housing 1, wherein a handle is fixedly installed at one end of the threaded rod 10 extending to the outside of the housing 1, the threaded rod 10 is conveniently rotated by the handle, movable blocks 12 are movably connected to the outer surfaces of the threaded rod 10 and the vertical rod 11, the movable blocks 12 located on the surface of the threaded rod 10 are in threaded connection with the threaded rod 10, the movable blocks located on the surface of the vertical rod 11 slide up and down on the surface of the vertical rod 11, vertical plates 13 are fixedly installed on the opposite surfaces of the two movable blocks 12, through holes 14 are formed in the surfaces of the vertical plates 13, the number of the through holes 14 corresponds to the number of the first sliding blocks 6, the through holes 14 on the two sides are obliquely distributed on the surfaces of the vertical plates 13, and the inclination gradually increases from the middle to the two sides, the through hole 14 is internally and movably connected with a second sliding block 15, the surface of the second sliding block 15 is fixedly connected with the rear side fixing plate 8, the side-view cross section of the second sliding block 15 is I-shaped, the number of the second sliding blocks 15 corresponds to the number of the first sliding blocks 6 one by one, and the second sliding blocks 15 are arranged in the I-shaped mode, so that the second sliding blocks 15 can slide in the through hole 14 and cannot move back and forth.

Through the rotation of threaded rod 10, drive movable block 12 and remove, because the spacing of riser 13 opposite side movable block 12 simultaneously, when threaded rod 10 rotated, can make riser 13 reciprocate.

The working principle of the above embodiment is as follows:

by rotating the threaded rod 10 and driving the vertical plate 13 to move up and down under the action of the movable block 12, meanwhile, the second sliding block 15 slides in the through hole 14, the through holes 14 at two sides of the middle through hole 14 are cut obliquely, meanwhile, the front surface of the second slide block 15 is respectively fixedly connected with the first liquid taking barrel 5 and the second liquid taking barrel 7 through a rear fixing plate 8, and the fixing plate 8 on the front surface of the first liquid taking cylinder 5 and the second liquid taking cylinder 7 can only slide on the surface of the cross bar 9, namely the first liquid taking cylinder 5 and the second liquid taking cylinder 7 can only move horizontally, therefore, when the vertical plate 13 moves up and down to drive the through holes 14 to move up and down, the position of the middle second sliding block 15 is not changed, and the second sliding blocks 15 on the two sides move towards the separated side, and the moving distances are equal, namely the distances between the second liquid taking cylinders 7 and the first liquid taking cylinders 5 after adjustment are also equal, so that the purpose of adjusting the distances is achieved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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

1. The utility model provides a multichannel pipettor, includes casing (1), gets liquid mechanism and adjustment mechanism, its characterized in that: a sleeve (2) is fixedly mounted on the upper surface of the shell (1), a pressing rod (3) which penetrates through the sleeve (2) and the shell (1) and extends to the inner cavity of the shell (1) is movably mounted above the sleeve (2), a liquid taking mechanism is arranged at the bottom of the pressing rod (3), and an adjusting mechanism is arranged on the rear side of the liquid taking mechanism;

the liquid taking mechanism comprises a connecting plate (4) fixedly arranged on the lower surface of the pressing rod (3), and a cross bar (9) fixedly arranged in the inner cavity of the shell (1), a first liquid taking cylinder (5) is fixedly arranged on the lower surface of the connecting plate (4), the bottom of the first liquid taking cylinder (5) penetrates through and extends to the outside of the shell (1), the upper surface of the connecting plate (4) is movably connected with a first sliding block (6) which penetrates through and extends to the lower part of the connecting plate (4), a second liquid taking cylinder (7) positioned at one side of the first liquid taking cylinder (5) is fixedly arranged on the lower surface of the first sliding block (6), the bottom of the second liquid taking cylinder (7) penetrates through and extends to the outside of the shell (1), the front surface and the rear surface of the first liquid taking barrel (5) and the second liquid taking barrel (7) are both fixedly provided with a fixing plate (8), and the fixing plate (8) at the front side is movably connected to the surface of the cross rod (9);

adjustment mechanism includes swing joint in casing (1) inner chamber and runs through and extend to outside threaded rod (10) of casing (1) and fixed mounting in montant (11) of casing (1) inner chamber, the equal swing joint in surface of threaded rod (10) and montant (11) has movable block (12), movable block (12) and threaded rod (10) threaded connection, two the equal fixed mounting of opposite face of movable block (12) has riser (13), through-hole (14) have been seted up on the surface of riser (13), swing joint has second slider (15) in through-hole (14), the surface and rear side fixed plate (8) fixed connection of second slider (15).

2. A multichannel pipette as defined in claim 1, wherein: the lower surface of the shell (1) is provided with a rectangular through hole communicated with the inner cavity, and the width of the rectangular through hole is larger than the width of the bottoms of the first liquid taking cylinder (5) and the second liquid taking cylinder (7).

3. A multichannel pipette as defined in claim 1, wherein: the upper surface of the pressing rod (3) is fixedly provided with a handle, and the overlooking section of the connecting plate (4) is a rectangular ring.

4. A multichannel pipette as defined in claim 1, wherein: the side-looking cross section of the first sliding block (6) is I-shaped, the number of the first sliding blocks (6) is a plurality, and the first sliding blocks are evenly distributed on the left side and the right side of the first liquid taking cylinder (5).

5. A multichannel pipette as defined in claim 1, wherein: the number of the second liquid taking cylinders (7) is in one-to-one correspondence with the number of the first sliding blocks (6), and the distances among the second liquid taking cylinders (7) are the same.

6. A multichannel pipette as defined in claim 1, wherein: the quantity of fixed plate (8) and the quantity of first slider (6) are two to one and correspond, the upper surface fixed mounting of threaded rod (10) has the handle.

7. A multichannel pipette as defined in claim 1, wherein: the number of the through holes (14) corresponds to the number of the first sliding blocks (6) one by one, the through holes (14) on the two sides are distributed on the surface of the vertical plate (13) in an inclined mode, and the inclination gradually increases from the middle to the two sides.

8. A multichannel pipette as defined in claim 1, wherein: the side-view cross section of the second sliding block (15) is I-shaped, and the number of the second sliding blocks (15) corresponds to the number of the first sliding blocks (6) one by one.