CN221016122U

CN221016122U - Pipetting device

Info

Publication number: CN221016122U
Application number: CN202323032216.XU
Authority: CN
Inventors: 冯仁兵
Original assignee: Shanghai Shuokong Electronic Technology Co ltd
Current assignee: Shanghai Shuokong Electronic Technology Co ltd
Priority date: 2023-11-09
Filing date: 2023-11-09
Publication date: 2024-05-28
Anticipated expiration: 2033-11-09

Abstract

The utility model relates to the technical field of pipettors, in particular to a pipetting device which comprises a transmission frame, wherein a support plate is fixedly connected to the middle side of the back of the transmission frame, sliding grooves are formed in the surfaces of the left side and the right side of the support plate, screw rods are rotatably connected to the inner parts of the sliding grooves, sleeve blocks are connected to the surfaces of the screw rods in a threaded mode, two groups of connecting frames are arranged at the front parts of the sleeve blocks, connecting steel pipes are fixedly connected to the bottoms of the connecting frames, and positioning plates are fixedly connected to the bottoms of the connecting steel pipes. According to the pipetting device, through the arrangement of the transmission frame, samples can be transmitted to the lower portion of the positioning plate through the transmission belt, and a person can drive the pipettors below the positioning plate to shift to the top of the sample box to extract by starting the synchronous motor, so that the complex problem that the sample box test tubes are required to be extracted and positioned one by one manually by using the pipettors in the pipetting process at present is solved.

Description

Pipetting device

Technical Field

The utility model relates to the technical field of pipettors, in particular to a pipetting device.

Background

A pipetting device, also called a pipette, is a metering tool that transfers liquid from an original container to another container over a range of ranges. Is widely used in the fields of biology, chemistry and the like, and the design basis of the micro-pipettor commonly used in clinic is Hooke's law: namely, the long force of the spring stretching within a certain limit is in direct proportion to the elastic force, namely, the liquid volume in the liquid dispenser is in direct proportion to the elastic force of the spring in the liquid dispenser, and the physical principles of sample adding of the micro liquid dispenser are as follows: the micro-pipettor using the air cushion sample adding and the piston without the air cushion sample adding are moving, and the two different principles have different specific application ranges;

When carrying out the experiment, need carry out the sample inspection to the liquid in the liquid sample test tube, and the pipetting device that uses at present mostly needs the manual work to carry out the extraction one by one to the sample test tube, can't accomplish concentrated extraction and transfer to the detection department, has increased personnel's operation volume, and traditional pipettor is mostly single pipeline setting, and single only can extract single sample, need change or wash it when extracting once more in order to avoid detecting the mistake, and is comparatively troublesome.

In view of this, we propose a pipetting device.

Disclosure of utility model

In order to overcome the defects, the utility model provides a pipetting device.

The technical scheme of the utility model is as follows:

The utility model provides a pipetting device, includes the transmission frame, the back mid-side fixedly connected with backup pad of transmission frame, the spout has all been seted up to the left and right sides surface of backup pad, the inside of spout all rotates and is connected with the lead screw, the equal threaded connection in surface of lead screw has the cover piece, the front portion of cover piece is equipped with two sets of link, two sets of the front portion left and right sides of link is all connected through the stay tube of fixedly connected with, the link bottom all fixedly connected with connecting steel pipe, the bottom fixedly connected with locating plate of connecting steel pipe;

The bottom surfaces of the right sides of the two groups of connecting frames are fixedly connected with hanging pipes, and the bottom surfaces of the hanging pipes are fixedly connected with limiting baffles.

As a preferable technical scheme, a group of conveying belts are arranged on the surface of the conveying frame.

As the preferable technical scheme, synchronous motors are arranged on the left side and the right side of the top of the supporting plate, and the output ends of the synchronous motors are fixedly connected with the top of the screw rod.

As the preferable technical scheme, both sides all fixedly connected with fixed cover around the top of locating plate, flexible cylinder is all installed to the inside of fixed cover, the equal fixedly connected with spliced pole of bottom junction of flexible cylinder, the bottom fixedly connected with of spliced pole is a set of pipettor.

As the preferable technical scheme, the inside sliding connection of pipettor has two sets of piston rods, the piston rod with spliced pole fixed connection, the bottom of two sets of piston rods is all fixedly connected with a set of piston board, the bottom of piston board is all fixedly connected with telescopic column.

As the preferable technical scheme, the front side and the back side of the bottom surface of the liquid transfer device are fixedly connected with sealing rings, and the bottom of each sealing ring is provided with a liquid transfer head.

As the preferable technical scheme, the bottom fixedly connected with supporting seat of transmission frame, the bottom fixedly connected with base of supporting seat.

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

1. According to the pipetting device, through the arrangement of the transmission frame, samples can be transmitted to the lower portion of the positioning plate through the transmission belt, a person can drive the pipettor below the positioning plate to shift to the top of the sample box to extract by starting the synchronous motor, and when the positioning plate descends, the limit baffle on the right descends along with the falling of the positioning plate to block the sample box, so that the situation that the pipetting head cannot accurately extract due to the fact that the sample box is transmitted to the outside through the transmission belt during the operation of the pipettor is prevented, and the complex problem that the pipette needs to be used for manually extracting and positioning sample box test tubes one by one in the pipetting process at present is solved.

2. According to the liquid transfer device, the plurality of groups of liquid transfer heads are arranged at the bottom of the liquid transfer device, so that the telescopic cylinder descends to drive the inner piston plate to synchronously slide, liquid in the test tube can be collected and transferred in a concentrated mode, the problem that the traditional liquid transfer device is arranged in a single pipeline, only a single sample can be extracted at a time, and replacement or cleaning is needed when the single sample is extracted again to avoid detection errors is solved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a support plate assembly according to the present utility model;

FIG. 3 is a schematic view of a locating plate assembly according to the present utility model;

fig. 4 is a schematic view of a pipette assembly according to the present utility model.

In the figure: 1. a transmission rack; 10. a transmission belt; 2. a support plate; 20. a chute; 21. a screw rod; 22. a synchronous motor; 3. sleeving blocks; 30. a connecting frame; 31. a support tube; 32. connecting steel pipes; 4. a positioning plate; 40. a fixed cover; 400. a telescopic cylinder; 5. a hanging pipe; 50. a limit baffle; 6. a pipette; 60. a connecting column; 61. a piston rod; 62. a piston plate; 63. a telescopic column; 7. a seal ring; 70. a pipetting head; 8. a support base; 80. and (5) a base.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, the present utility model provides a technical solution:

The pipetting device comprises a transmission frame 1, wherein a support plate 2 is fixedly connected to the middle side of the back of the transmission frame 1, sliding grooves 20 are formed in the surfaces of the left side and the right side of the support plate 2, screw rods 21 are rotatably connected to the inside of the sliding grooves 20, sleeve blocks 3 are connected to the surfaces of the screw rods 21 in a threaded manner, two groups of connection frames 30 are arranged at the front part of the sleeve blocks 3, the left side and the right side of the front part of the two groups of connection frames 30 are connected through support pipes 31 fixedly connected with each other, connecting steel pipes 32 are fixedly connected to the bottoms of the connection frames 30, and positioning plates 4 are fixedly connected to the bottoms of the connecting steel pipes 32;

The bottom surfaces of the right sides of the two groups of connecting frames 30 are fixedly connected with hanging pipes 5, and the bottom surfaces of the hanging pipes 5 are fixedly connected with limiting baffles 50.

It should be noted that, the positioning plate 4 is located at the middle side of the transmission frame 1, when the screw rod 21 rotates, the sleeve block 3 slides up and down along the position of the chute 20, and drives the front connecting frame 30 to move along the movement track of the sleeve block 3, at this time, the positioning plate 4 descends, and meanwhile, the limit baffle 50 located at the right side blocks the sample box, so as to prevent the sample box from sliding to the outside.

It should be added that the surface of the transmission frame 1 is provided with a group of transmission belts 10, and an operator can place the sample box on the surface of the transmission belts 10 to be transmitted to the lower part of the positioning plate 4 for pipetting.

As a preference of this embodiment, synchronous motors 22 are mounted on the left and right sides of the top of the support plate 2, and the output ends of the synchronous motors 22 are fixedly connected with the top of the screw rod 21, so that an operator can drive the screw rod 21 to synchronously rotate by starting the synchronous motors 22.

As a preference of this embodiment, both sides all fixedly connected with fixed cover 40 around the top of locating plate 4, telescopic cylinder 400 is all installed to the inside of fixed cover 40, and the bottom junction of telescopic cylinder 400 all fixedly connected with spliced pole 60, the bottom fixedly connected with of spliced pole 60 is a set of pipettor 6.

As a preferable mode of this embodiment, two sets of piston rods 61 are slidably connected inside the pipette 6, the piston rods 61 are fixedly connected with the connecting column 60, the bottoms of the two sets of piston rods 61 are fixedly connected with a set of piston plates 62, and the bottoms of the piston plates 62 are fixedly connected with telescopic columns 63.

It should be noted that, the front and back sides of the bottom surface of the pipettor 6 are fixedly connected with sealing rings 7, and the bottom of the sealing rings 7 is provided with pipetting heads 70

It should be added that, when the positioning plate 4 descends and drives the pipetting head 70 below the bottom pipetter 6 to contact the inside of the sample box test tube, the personnel starts the telescopic cylinder 400 at this time, the telescopic cylinder 400 drives the connecting column 60 to pump upwards, the pipetting head 70 pumps the liquid in the test tube at this time, the positioning plate 4 ascends after the pumping is finished, the limiting baffle 5 lacks the blocking effect on the sample box at this time, and the sample box is transmitted to the outside through the transmission belt 10.

As a preferred embodiment, the bottom of the transmission frame 1 is fixedly connected with a supporting seat 8, and the bottom of the supporting seat 8 is fixedly connected with a base 80.

When the pipetting device is used, firstly, an operator places a sample box on the surface of a conveying belt 10 and conveys the sample box to the position below a locating plate 4 for pipetting, meanwhile, the operator can drive a screw rod 21 to synchronously rotate by starting a synchronous motor 22, when the screw rod 21 rotates, a sleeve block 3 slides up and down along the position of a chute 20 and drives a front connecting frame 30 to move along the movement track of the sleeve block 3, the locating plate 4 descends, a limit baffle 50 positioned on the right side blocks the sample box, the sample box is prevented from sliding off, the locating plate 4 descends immediately and drives a pipetting head 70 below a bottom pipettor 6 to contact the inside of a sample box test tube, the telescopic cylinder 400 drives a connecting column 60 to pump up, the pipetting head 70 pumps liquid in the test tube, the locating plate 4 ascends after the pumping is finished, the limit baffle 5 lacks the blocking effect on the sample box, the sample box is conveyed to the outside through the conveying belt 10, and the pipetting process is finished.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Pipetting device comprising a transfer rack (1), characterized in that: the back middle side fixedly connected with backup pad (2) of transmission frame (1), spout (20) have all been seted up on the left and right sides surface of backup pad (2), the inside of spout (20) is all rotated and is connected with lead screw (21), the surface of lead screw (21) is all threaded connection has cover piece (3), the front portion of cover piece (3) is equipped with two sets of link (30), two sets of the front portion left and right sides of link (30) is all connected through fixedly connected with stay tube (31), all fixedly connected with connecting steel pipe (32) in link (30) bottom, connecting steel pipe (32) bottom fixedly connected with locating plate (4);

The bottom surfaces of the right sides of the two groups of connecting frames (30) are fixedly connected with hanging pipes (5), and the bottom surfaces of the hanging pipes (5) are fixedly connected with limiting baffles (50).

2. A pipetting device as recited in claim 1 wherein: the surface of the transmission frame (1) is provided with a group of transmission belts (10).

3. A pipetting device as recited in claim 1 wherein: synchronous motors (22) are arranged on the left side and the right side of the top of the supporting plate (2), and the output ends of the synchronous motors (22) are fixedly connected with the top of the screw rod (21).

4. A pipetting device as recited in claim 1 wherein: both sides all fixedly connected with fixed cover (40) around the top of locating plate (4), telescopic cylinder (400) are all installed to the inside of fixed cover (40), the equal fixedly connected with spliced pole (60) of bottom junction of telescopic cylinder (400), the bottom fixedly connected with of spliced pole (60) is a set of pipettor (6).

5. A pipetting device as recited in claim 4 wherein: two groups of piston rods (61) are slidably connected in the pipettor (6), the piston rods (61) are fixedly connected with the connecting columns (60), a group of piston plates (62) are fixedly connected to the bottoms of the two groups of piston rods (61), and telescopic columns (63) are fixedly connected to the bottoms of the piston plates (62).

6. A pipetting device as recited in claim 4 wherein: sealing rings (7) are fixedly connected to the front side and the rear side of the bottom surface of the liquid transfer device (6), and liquid transfer heads (70) are arranged at the bottoms of the sealing rings (7).

7. A pipetting device as recited in claim 1 wherein: the bottom of transmission frame (1) fixedly connected with supporting seat (8), the bottom fixedly connected with base (80) of supporting seat (8).