CN217989357U

CN217989357U - Double-needle type liquid transfer device

Info

Publication number: CN217989357U
Application number: CN202222407288.7U
Authority: CN
Inventors: 胡群邦; 陈宽; 陈洪彬; 余农
Original assignee: Kelaisi Shenzhen Technology Co ltd
Current assignee: Kelaisi Shenzhen Technology Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2022-12-09
Anticipated expiration: 2032-09-09

Abstract

The utility model discloses a double-needle type liquid transfer device, including the first mounting panel and the second mounting panel that set up side by side, the front side of first mounting panel and second mounting panel all is equipped with the pipettor, be equipped with actuating mechanism between first mounting panel and the second mounting panel, under this actuating mechanism's driving action, interval between first mounting panel and the second mounting panel can increase or reduce. The utility model has the advantages that: after two sets of pipettors move to the reaction plate top, can change two sets of pipettors interval, make it adapt to with reaction plate hole interval to realize synchronous dropping liquid operation.

Description

Double-needle type liquid transfer device

Technical Field

The utility model relates to a biological detection technical field, concretely relates to double-needle type liquid-transfering device.

Background

When virus nucleic acid detection is carried out, a sample to be detected is usually temporarily stored in a sample tube, and the sample needs to be transferred into each hole of a reaction plate one by one from the sample tube before biological detection analysis is carried out. In the early detection process, the above steps are completed manually, and the problems of time and labor waste, low efficiency, high error rate and the like exist.

In order to overcome the problems existing in manual operation, a full-automatic cup separating processing system is produced, a code scanning mechanism, a cover opening and closing mechanism, a liquid transferring device and the like are integrated in the cup separating processing system, and after a sample rack is installed in the cup separating processing system, the work of information acquisition, cover opening and closing, sample transfer and the like can be automatically completed under the synergistic action of a moving module. Wherein, sample transfer is accomplished by liquid-transfering device, specifically is: after the sample tube cover is opened, the liquid transferring device moves to the upper part of the sample tube to suck away the sample in the sample tube, and then the liquid transferring device moves to the upper part of the reaction plate to drop the sample into the reaction hole of the reaction plate.

In prior art, for promoting the work efficiency who divides cup processing system, switch lid mechanism and move liquid device all adopt two sets of settings, promptly: the switch covers of two groups of sample tubes and the liquid transfer of two groups of samples can be carried out simultaneously. Because the interval of two adjacent sample tubes on the sample frame is greater than the interval of two adjacent reaction holes on the reaction plate, so two sets of liquid-transfering device absorb sample solution simultaneously in two sample tubes after, must control one of them liquid-transfering device to the reaction hole dropping liquid earlier, then control another a set of liquid-transfering device to the reaction hole dropping liquid again, two sets of liquid-transfering device need carry out the dropping liquid operation alone promptly, divide cup efficiency lower.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a two pin type pipetting device, two sets of pipetting needle move to reaction plate top after, can change two sets of pipetting needle intervals, make it suit with reaction plate hole interval to realize synchronous dropping liquid operation.

In order to achieve the above purpose, the utility model discloses technical scheme as follows:

the utility model provides a double needle formula pipetting device which the key lies in: including first mounting panel and the second mounting panel that sets up side by side, the front side of first mounting panel and second mounting panel all is equipped with the pipettor, be equipped with actuating mechanism between first mounting panel and the second mounting panel, under this actuating mechanism's drive action, interval between first mounting panel and the second mounting panel can increase or reduce.

Preferably, the rear side of first mounting panel is equipped with first slider, and the rear side of second mounting panel is equipped with the second slider, the second slider highly flushes with first slider for the sliding assembly is on same guide rail.

Preferably, first mounting panel rear side upper end has set firmly the bracket component, actuating mechanism includes pulley assembly and drive pulley assembly pivoted motor, motor and pulley assembly all set up on the bracket component, second mounting panel upper end has set firmly the switching piece, this switching piece and pulley assembly's belt fixed connection.

Preferably, the bracket assembly comprises a motor base and a supporting sheet extending outwards from one end of the motor base, the motor is mounted on the motor base, one belt wheel of the belt wheel assembly is fixedly sleeved on an output shaft of the motor, and the other belt wheel is rotatably mounted at the far end of the supporting sheet.

Preferably, the support sheet is connected with the motor base through a kidney-shaped hole, and is used for adjusting the belt tension of the belt pulley assembly.

Preferably, an outward-extending photoelectric sensor mounting piece is fixedly mounted at one end of the motor base, the photoelectric sensor mounting piece is arranged opposite to the switching block, two groups of photoelectric sensors are mounted on the photoelectric sensor mounting piece, and a light blocking piece matched with the photoelectric sensors is arranged on the switching block.

Preferably, the tray is installed through telescopic machanism in the bottom of first mounting panel or second mounting panel.

Preferably, the pipettors are all installed at the front side of first mounting panel and second mounting panel through lift module.

Preferably, the lower end of the pipettor is provided with a needle which is used for sleeving the TIP head.

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

1. adopt the utility model provides a double-pin type moves liquid device, its use is back in dividing cup processing system, under actuating mechanism's drive effect, and the interval between two sets of pipettors can be adjusted to this adapts to the hole pitch difference between two sample pipes and two sets of reaction holes, makes two sets of pipettors of moving liquid device can carry out the dropping liquid operation in step, helps the branch cup efficiency of lift system.

2. The sliding assembly structure with the adjustable distance is reasonable in design, can share one set of linear guide rail with the X-direction moving module of the liquid transfer device, is convenient to control, and can improve the structural compactness of the cup separating treatment system.

Drawings

Fig. 1 is a schematic perspective view (front side view) of a double-needle type pipetting device;

FIG. 2 is a perspective view (rear side view) of the double needle type pipetting device;

FIG. 3 is an enlarged view of a portion of FIG. 2 taken at I;

FIG. 4 is a reference view (outside view) of the state of use of the pipetting device in the cup dispensing system;

FIG. 5 is a reference view (inside view) of the state of use of the pipetting device in the cup dispensing processing system;

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

As shown in fig. 1, 2 and 3, the double-needle type pipetting device structurally comprises a first mounting plate 1 and a second mounting plate 2 which are arranged side by side, pipettors 3 are arranged on the front sides of the first mounting plate 1 and the second mounting plate 2, a driving mechanism 4 is arranged between the first mounting plate 1 and the second mounting plate 2, and the driving mechanism 4 is used for driving the first mounting plate 1 and the second mounting plate 2 to move towards the directions close to or away from each other, so that the distance between the two sets of pipettors 3 is changed.

In this embodiment, the rear side of the first mounting plate 1 is provided with a first slider 1a, the rear side of the second mounting plate 2 is provided with a second slider 2a, and it can be seen from fig. 4 and 5 that a linear guide 11 is installed inside the cup separating processing system, and the first slider 1a and the second slider 2a are both slidably connected to the linear guide 11, so that the driving mechanism 4 drives the first mounting plate 1 and/or the second mounting plate 2 to slide on the linear guide 11, and the adjustment of the distance between the two sets of pipettors 3 can be realized.

As shown in fig. 3, in order to conveniently provide the driving mechanism 4, a bracket assembly 1b is fixedly arranged at the upper end of the rear side of the first mounting plate 1, the driving mechanism 4 comprises a motor 4a and a belt pulley assembly 4b which are both arranged on the bracket assembly 1b, a transfer block 2b is fixedly arranged at the upper end of the second mounting plate 2, and the transfer block 2b is fixedly connected with a belt of the belt pulley assembly 4 b. Based on this, motor 4a drive belt pulley subassembly 4b rotates, and belt pulley subassembly 4 b's belt can drive second mounting panel 2 and slide on linear guide 11, and then realizes the adjustment of 3 intervals of two sets of pipettors.

Referring to fig. 3, the bracket assembly 1b is composed of a motor base 1b1 and a supporting sheet 1b3 extending outward from one end of the motor base 1b1, a motor 4a is installed on the motor base 1b1, one of the belt wheels of the belt wheel assembly 4b is fixedly sleeved on an output shaft of the motor 4a, and the other belt wheel is rotatably installed at one end of the supporting sheet 1b3 far away from the motor base 1b 1. So design, have rationally distributed advantage, can make things convenient for the switching piece 2b to be connected with the belt. In this embodiment, the left end of the supporting sheet 1b3 is provided with a waist-shaped hole a, and is connected with the motor base 1b1 through the waist-shaped hole a, so that the belt tension of the belt pulley assembly 4b can be conveniently adjusted.

Further, motor cabinet 1b1 right-hand member still fixed mounting has the photoelectric sensor installation piece 1b2 of outside extension, photoelectric sensor installation piece 1b2 is just to setting up with switching piece 2b, install two sets of photoelectric sensor 5 on the photoelectric sensor installation piece 1b2, be equipped with the light blocking piece 6 that suits with photoelectric sensor 5 on the switching piece 2b, two sets of photoelectric sensor 5 distribute along the sliding direction of second mounting panel 2, the position that light blocking piece 6 reachs two sets of photoelectric sensor 5 corresponds two sets of pipettors 3's maximum spacing and minimum spacing respectively. With photoelectric sensor installation piece 1b2 and backing sheet 1b3 separately design, can guarantee that photoelectric sensor installation piece 1b2 has relatively stable position relation, can not change along with backing sheet 1b 3's regulation, and then ensure the accuracy nature that 5 positions of photoelectric sensor judge.

Referring to fig. 4 and 5, in application, the double-needle type liquid-transferring device is integrally installed in the cup-separating processing system through the X-direction moving module 12 and the Y-direction moving module 14, the first sliding block 1a, the second sliding block 2a and the X-direction moving module 12 share the linear guide rail 11, and the X-direction moving module 12 drives the first installation plate 1 to slide along the linear guide rail 11 by using the pulley mechanism 13. Further, in order to ensure the stability of installation, it can be seen from fig. 3 that the number of the first sliding blocks 1a and the second sliding blocks 2a on the corresponding mounting plates is two, and the first mounting plate 1 and the second mounting plate 2 are assembled in the cup separating processing system through two sets of parallel linear guide rails 11.

Referring to fig. 1, the pipettors 3 are all installed on the front sides of the first installation plate 1 and the second installation plate 2 through the lifting module 9, and the lifting module 9 can drive the pipettors 3 to move up and down along with the corresponding installation plates, so that liquid taking in the sample tube and liquid dropping on the reaction plate 10 are facilitated. The lifting module 9 adopts a conventional linear motion module.

Furthermore, a tray 8 is installed at the bottom of the first mounting plate 1 or the second mounting plate 2 through a telescopic mechanism 7, the width of the tray 8 spans the two pipettors 3, and in the pipetting process, the telescopic mechanism 7 drives the tray 8 to move out and can be used for catching liquid dripped midway. In this embodiment, the pipette 3 is used for taking and dropping liquid, and the lower end of the pipette has a needle 3a, and during the operation of the system, the needle 3a is sleeved with a TIP 3b to perform the operation of taking and dropping liquid. The liquid taking by the pipette 3 through the TIP is a mature technology in the prior art, and the working principle of the liquid taking is not described in detail herein.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims

1. The utility model provides a double needle formula pipetting device which characterized in that: including first mounting panel (1) and second mounting panel (2) that set up side by side, the front side of first mounting panel (1) and second mounting panel (2) all is equipped with pipettor (3), be equipped with actuating mechanism (4) between first mounting panel (1) and second mounting panel (2), under the drive effect of this actuating mechanism (4), interval between first mounting panel (1) and second mounting panel (2) can increase or reduce.

2. The double needle type pipetting device according to claim 1, characterized in that: the rear side of first mounting panel (1) is equipped with first slider (1 a), and the rear side of second mounting panel (2) is equipped with second slider (2 a), second slider (2 a) highly flushes with first slider (1 a) for the sliding assembly is on same guide rail.

3. The double needle type pipetting device according to claim 2, characterized in that: first mounting panel (1) rear side upper end has set firmly bracket component (1 b), actuating mechanism (4) include belt pulley assembly (4 b) and drive pulley assembly (4 b) pivoted motor (4 a), motor (4 a) and belt pulley assembly (4 b) all set up on bracket component (1 b), second mounting panel (2) upper end has set firmly switching piece (2 b), the belt fixed connection of this switching piece (2 b) and belt pulley assembly (4 b).

4. The double needle type pipetting device according to claim 3, characterized in that: bracket component (1 b) includes motor cabinet (1 b 1) and from motor cabinet (1 b 1) one end outside support sheet (1 b 3) that extends, motor (4 a) are installed on motor cabinet (1 b 1), and one of them band pulley of belt pulley component (4 b) is fixed to be overlapped on the output shaft of motor (4 a), and another band pulley rotates and installs the distal end at support sheet (1 b 3).

5. The double needle type pipetting device according to claim 4, characterized in that: the supporting sheet (1 b 3) is connected with the motor base (1 b 1) through a waist-shaped hole (a) and used for adjusting the belt tension of the belt pulley assembly (4 b).

6. The double needle type pipetting device according to claim 4, characterized in that: motor cabinet (1 b 1) one end fixed mounting has outside extending photoelectric sensor installation piece (1 b 2), and this photoelectric sensor installation piece (1 b 2) is just to setting up with switching piece (2 b), installs two sets of photoelectric sensor (5) on photoelectric sensor installation piece (1 b 2), be equipped with on switching piece (2 b) and hinder light piece (6) that suit with photoelectric sensor (5).

7. The double needle pipetting device of claim 1, wherein: the tray (8) is installed through telescopic machanism (7) in the bottom of first mounting panel (1) or second mounting panel (2).

8. The double needle pipetting device of claim 1, wherein: pipettor (3) all install the front side at first mounting panel (1) and second mounting panel (2) through lift module (9).

9. The double needle type pipetting device according to claim 1, characterized in that: the lower end of the pipettor (3) is provided with a needle (3 a), and the needle (3 a) is used for sleeving a TIP head.