CN212092330U

CN212092330U - Eight-channel electric pipettor

Info

Publication number: CN212092330U
Application number: CN201922377927.8U
Authority: CN
Inventors: 吴涛; 李丰刚; 王子文; 廖华
Original assignee: Suzhou Kingreach Intelligent Equipment Technology Co ltd
Current assignee: Suzhou Kingreach Intelligent Equipment Technology Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-12-08
Anticipated expiration: 2029-12-25

Abstract

The utility model provides an electronic pipettor of eight passageways, it is through synchronous imbibition or flowing back of motor drive calandria rifle, its convenient to use, and has guaranteed the quality of operation product. The cavity of the main casing body includes upper portion cavity, lower part cavity, the width direction central point of the roof of the main casing body puts and is provided with the motor, the output shaft of motor extremely down in the upper portion cavity, be connected with the lead screw structure on the output shaft, the lower extreme threaded connection of lead screw structure has the lead screw sleeve, the upper portion cavity correspond to the telescopic position of lead screw is provided with the guide rail, the telescopic lower part of lead screw runs through behind the intermediate bottom board down extremely the lower part cavity, the telescopic bottom rigid coupling of lead screw has the upper end of connecting block, the lower extreme rigid coupling of connecting block has horizontal cross connect plate, arrange the corresponding top that is provided with eight piston rods on the horizontal cross connect plate, the bottom plate of lower part cavity specifically is.

Description

Eight-channel electric pipettor

Technical Field

The utility model relates to a technical field of vehicle antenna structure specifically is an electronic pipettor of eight passageways.

Background

The existing pipettor is generally of a pneumatic structure, needs an external air source to drive an air cylinder, needs an additional air path structure when being actually used, is inconvenient to use, cannot ensure that liquid outlet of all channels is carried out synchronously in the liquid feeding process of a discharging gun, and cannot ensure quality.

Disclosure of Invention

To the above problem, the utility model provides an eight passageway electronic pipettors, it is through synchronous imbibition or flowing back of motor drive calandria rifle, its convenient to use, and guaranteed the quality of operation product.

An electronic pipettor of eight passageways which characterized in that: the sealing device comprises a main shell, wherein a cavity of the main shell comprises an upper cavity and a lower cavity, a motor is arranged at the center position of the top plate of the main shell in the width direction, an output shaft of the motor protrudes downwards into the upper cavity, a screw rod structure is connected onto the output shaft, a screw rod sleeve is in threaded connection with the lower end of the screw rod structure, a guide rail is arranged at the position of the upper cavity corresponding to the screw rod sleeve, the lower part of the screw rod sleeve penetrates through a middle partition plate and then protrudes downwards to the lower cavity, the bottom end of the screw rod sleeve is fixedly connected with the upper end of a connecting block, a horizontal transverse connecting plate is fixedly connected with the lower end of the connecting block, corresponding tops of eight piston rods are arranged on the horizontal transverse connecting plate, a bottom plate of the lower cavity is specifically a sealing plate, and a, the top that corresponds of eight cavitys is installed in packaging structure's interior anchor ring, and eight cavitys are respectively protruding downwards in the closing plate and are arranged, eight the upper end of the bottom muzzle of cavity passes through the stabilizer plate and connects and form overall structure.

It is further characterized in that:

the guide rail is a guide linear cavity formed by splicing guide plates on two sides, and the guide protrusions are embedded in the guide linear cavity and ensure that the screw rod sleeve moves in the linear direction;

a U-shaped switch is fixedly arranged on the middle partition plate, a middle groove of the U-shaped switch is arranged in alignment with the position of the guide protrusion, and after the guide protrusion is embedded in the middle groove, the U-shaped switch acts and the motor stops moving downwards;

the front of the upper cavity is protruded out of the lower cavity, a first cover plate is covered on the front surface of the upper cavity, and a second cover plate is covered on the front surface of the lower cavity;

a sealing ring is sleeved on the inner wall of the upper part of each cavity, and the piston rod is correspondingly inserted into the sealing ring and extends into the cavity to ensure the sealing property of the cavity;

the stabilizing plate is connected with the sealing plate through a connecting column, so that stable and reliable connection is ensured.

Adopt the utility model discloses a behind the structure, the motor passes through lead screw structure drive lead screw sleeve, and then the rising and the decline of horizontal transverse connection board of drive, and then the synchronous lift of drive piston rod, and then the synchronous flowing back of rifle head or the imbibition that every cavity of drive corresponds, and it ensures that the liquid of all passageways is synchronous discharges or inhales, has guaranteed the quality of operation product, and because the cavity is arranged in the closing plate under the cavity respectively, the open structure of cavity also makes things convenient for the secondary development of numerous users to equipment.

Drawings

Fig. 1 is a schematic structural view of a perspective view of the present invention;

fig. 2 is a schematic structural view of the first cover plate and the second cover plate of the present invention in a three-dimensional view;

the names corresponding to the sequence numbers in the figure are as follows:

the lead screw structure comprises a main shell 1, an upper cavity 2, a lower cavity 3, a top plate 4, a motor 5, a lead screw structure 6, a lead screw sleeve 7, a middle partition plate 8, a connecting block 9, a horizontal transverse connecting plate 10, a piston rod 11, a sealing plate 12, a cavity 13, a stabilizing plate 14, a guide protrusion 15, a side guide plate 16, a guide linear cavity 17, a U-shaped switch 18, a middle groove 181, a first cover plate 19 and a second cover plate 20.

Detailed Description

An eight-channel electric pipettor is shown in figures 1 and 2: the device comprises a main shell 1, the cavity of the main shell 1 comprises an upper cavity 2 and a lower cavity 3, a motor 5 is arranged at the center position of the width direction of a top plate 4 of the main shell 1, an output shaft of the motor 5 protrudes downwards into the upper cavity 2, a screw rod structure 6 is connected on the output shaft, a screw rod sleeve 7 is connected at the lower end of the screw rod structure 6 in a threaded manner, a guide rail is arranged at the position of the upper cavity 2 corresponding to the screw rod sleeve 7, the lower part of the screw rod sleeve 7 penetrates through a middle partition plate 8 and then protrudes downwards to the lower cavity 3, the bottom end of the screw rod sleeve 8 is fixedly connected with the upper end of a connecting block 9, the lower end of the connecting block 9 is fixedly connected with a horizontal transverse connecting plate 10, the corresponding tops of eight piston rods 11 are arranged on the horizontal transverse connecting plate 10, a bottom plate of, the corresponding tops of the eight cavities 13 are arranged on the inner ring surface of the packaging structure, the eight cavities 13 are respectively arranged in a manner of protruding downwards from the sealing plate 12, and the upper ends of the bottom muzzles of the eight cavities 13 are connected through the stabilizing plate 14 to form an integral structure.

A guide bulge 15 is convexly arranged on the upper surface of the screw rod sleeve 7, a guide linear cavity 17 is formed by splicing guide plates 16 on two sides of a guide track, and the guide bulge 15 is embedded in the guide linear cavity 17 and arranged to ensure that the screw rod sleeve 7 moves in the linear direction;

the middle partition plate 8 is fixedly provided with a U-shaped switch 18, a middle groove 181 of the U-shaped switch 18 is arranged in alignment with the position of the guide protrusion 15, and after the guide protrusion 15 is embedded in the middle groove 181, the U-shaped switch 18 acts and the motor 5 stops moving downwards;

the front of the upper cavity 2 is protruded out of the lower cavity 3, the front surface of the upper cavity 2 is covered with a first cover plate 19, and the front surface of the lower cavity 3 is covered with a second cover plate 20;

a sealing ring (belonging to the existing mature sealing technology and not shown in the figure) is sleeved on the inner wall of the upper part of each cavity 13, and the piston rod 11 is correspondingly inserted in the sealing ring and extends into the cavity 13 to ensure the sealing property of the cavity;

the stabilizing plate 14 and the sealing plate 12 are connected through a connecting column 21, so that stable and reliable connection is ensured.

The working principle is as follows: the motor drives the screw rod sleeve through the screw rod structure, and then drives the horizontal transverse connecting plate to ascend and descend, and then drives the piston rod to synchronously ascend and descend, so that the gun heads corresponding to all the cavities are driven to synchronously discharge liquid or absorb liquid, the liquid of all the channels is ensured to be synchronously discharged or absorbed, the quality of operation products is ensured, and the cavities are respectively arranged in a way of protruding downwards in the sealing plate, so that the open structure of the cavities is convenient for secondary development of extensive users on equipment.

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. An electronic pipettor of eight passageways which characterized in that: the sealing device comprises a main shell, wherein a cavity of the main shell comprises an upper cavity and a lower cavity, a motor is arranged at the center position of the top plate of the main shell in the width direction, an output shaft of the motor protrudes downwards into the upper cavity, a screw rod structure is connected onto the output shaft, a screw rod sleeve is in threaded connection with the lower end of the screw rod structure, a guide rail is arranged at the position of the upper cavity corresponding to the screw rod sleeve, the lower part of the screw rod sleeve penetrates through a middle partition plate and then protrudes downwards to the lower cavity, the bottom end of the screw rod sleeve is fixedly connected with the upper end of a connecting block, a horizontal transverse connecting plate is fixedly connected with the lower end of the connecting block, corresponding tops of eight piston rods are arranged on the horizontal transverse connecting plate, a bottom plate of the lower cavity is specifically a sealing plate, and a, the top that corresponds of eight cavitys is installed in packaging structure's interior anchor ring, and eight cavitys are respectively protruding downwards in the closing plate and are arranged, eight the upper end of the bottom muzzle of cavity passes through the stabilizer plate and connects and form overall structure.

2. An eight-channel electric pipette as defined in claim 1 wherein: the guide rail is a guide linear cavity formed by splicing guide plates on two sides, and the guide protrusions are embedded in the guide linear cavity.

3. An eight-channel electric pipette as defined in claim 2, wherein: the middle partition plate is fixedly provided with a U-shaped switch, and a middle groove of the U-shaped switch is arranged in a manner of aligning to the position of the guide protrusion.

4. An eight-channel electric pipette as defined in claim 1 wherein: the upper cavity protrudes forwards from the lower cavity, a first cover plate is covered on the front surface of the upper cavity, and a second cover plate is covered on the front surface of the lower cavity.

5. An eight-channel electric pipette as defined in claim 1 wherein: the upper cavity protrudes forwards from the lower cavity, a first cover plate is covered on the front surface of the upper cavity, and a second cover plate is covered on the front surface of the lower cavity.

6. An eight-channel electric pipette as defined in claim 1 wherein: the upper cavity protrudes forwards from the lower cavity, a first cover plate is covered on the front surface of the upper cavity, and a second cover plate is covered on the front surface of the lower cavity.