CN111175528A

CN111175528A - Novel reagent adding system

Info

Publication number: CN111175528A
Application number: CN201911313937.3A
Authority: CN
Inventors: 郝书顺
Original assignee: Shijiazhuang Hipro Biotechnology Co Ltd
Current assignee: Shijiazhuang Hipro Biotechnology Co Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-05-19
Also published as: WO2021121155A1

Abstract

The invention discloses a novel reagent adding system which comprises an air compressing device, a main pipeline, a one-way valve and a plurality of reagent units, wherein the one-way valve is installed on the main pipeline. The gas distribution unit comprises a three-way valve, a branch pipe for connecting the three-way valve with the novel reagent kit, and a one-way valve and the novel reagent kit which are arranged on the branch pipe. The three-way valve in the air compressing device and the first reagent unit is connected through a main pipeline, and the three-way valve is connected with the novel reagent kit through a branch pipe. The three-way valves in the two adjacent air distribution units are connected by an extension pipe. Quick connectors are arranged between the main pipeline and the three-way valve, between the three-way valve and the branch pipe, between the branch pipe and the novel reagent kit and between the three-way valve and the extension pipe. The invention does not need to manually open the kit to take out the reagent for testing, thereby avoiding various defects of manual operation and improving the efficiency of testing or inspection.

Description

Novel reagent adding system

Technical Field

The invention relates to a laboratory tool, in particular to a novel reagent adding system.

Background

Various reagents are often used in laboratories during testing, and are generally contained in reagent cassettes. When a tester needs to remove a reagent from a reagent kit, it is a common practice that the tester opens a lid of the reagent kit, then uses a syringe or a dropper to aspirate a certain amount of the reagent, removes it, and adds it to a sample to be tested. It is inevitable that some excess reagent is replaced in the kit during the procedure. The tester may also easily become contaminated on the hands, body or test equipment if the operator is unskilled or careless. The consequences can be severe if the reagents used are corrosive or toxic to some extent.

Disclosure of Invention

The invention aims to provide a novel reagent adding system, which is used for solving the problem that reagents need to be added manually in the existing test.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

the utility model provides a novel reagent addition system, its includes presses gas device and reagent unit, the reagent unit includes novel kit, it is equipped with the trunk line to press between gas device and the reagent unit, the device of pressing gas carries the reagent unit through the trunk line with compressed gas.

Further, novel kit includes the box body and fixes the drain pipe in the cylinder of its bottom, drain pipe inner wall lower part is equipped with rather than fixed connection's the circular shape sealed pad, sealed pad is equipped with the circular shape liquid outlet that runs through its center perpendicularly, the liquid outlet top is equipped with can be at the gliding ball of drain pipe inner wall, ball upper portion is fixed with can be at the gliding bar magnet of drain pipe inner wall, the outside upside of drain pipe is equipped with rather than fixed connection's solenoid, the box body top is equipped with rather than fixed connection's the inside and outside air inlet of intercommunication, the air inlet links to each other with the trunk line.

Furthermore, a spherical concave pit is formed in the center of the top of the sealing gasket, the bottom of the spherical concave pit is communicated with the liquid outlet, and the ball is pressed in the spherical concave pit by the magnetic rod.

Furthermore, the bottom of the liquid outlet pipe is provided with an annular magnet fixedly connected with the liquid outlet pipe.

Furthermore, the reagent unit also comprises a gas distribution valve arranged between the novel reagent kit and the main pipeline.

Furthermore, a branch pipe is arranged between the novel kit and the gas distribution valve.

Further, the air distribution valve is a three-way valve.

Furthermore, the reagent units comprise a plurality of reagent units which are connected in sequence, an extension pipe is arranged between every two adjacent reagent units, and two ends of each extension pipe are connected with the adjacent gas distribution valves respectively.

Furthermore, a one-way valve is arranged on the branch pipe.

Furthermore, a check valve is arranged on the main pipeline.

The invention has the positive effects that:

the novel reagent adding system can simultaneously quantitatively add various reagents for the test process, and the reagent box does not need to be opened manually to take out the reagents for testing, so that various defects of manual operation are avoided, and the efficiency of testing or inspection can be improved. The opening and closing actions of the liquid outlet device of the novel reagent kit can be realized by controlling the power-on and power-off of the electromagnetic coil by the electric control system, so that the reagent kit does not need to be manually opened to take out the reagent for test operation. The invention can also provide reagent quantitatively, and can be realized by an electric control system through controlling the power-on time of the electromagnetic coil according to the type of the reagent, the air pressure in the novel kit and other parameters. Therefore, the novel kit can also meet the requirements of an automatic test system.

Drawings

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

FIG. 2 is a schematic diagram of a three-way valve according to the present invention;

FIG. 3 is a schematic view of the three-way valve of the present invention in an up-in-down configuration;

FIG. 4 is a schematic top-left out configuration of a three-way valve according to the present invention;

FIG. 5 is a schematic diagram of the shut-off state of the three-way valve of the present invention;

FIG. 6 is a schematic diagram of the structure of the novel kit;

FIG. 7 is a schematic view of the structure of the outlet portion;

in the figure, 1, a compressor; 2. a quick coupling; 3. a three-way valve; 4. an extension tube; 5. a novel kit; 6. a one-way valve; 7. a branch pipe; 8. a main pipeline; 32. a valve core; 31. a valve body; 51. a liquid outlet; 52. a ring magnet; 53. a ball; 54. a magnetic bar; 55. an electromagnetic coil; 56. a box body; 57. an air inlet; 58. a liquid outlet pipe; 59. and a gasket.

Detailed Description

As shown in the attached figure 1, the novel reagent adding system comprises an air compressing device 1, a main pipeline 8, a one-way valve 6 installed on the main pipeline 8 and a plurality of reagent units which are sequentially connected. The reagent unit comprises a three-way valve 3 and a novel reagent box 5 connected with the three-way valve 3 through a branch pipe 7, and a one-way valve 6 is arranged on the branch pipe 7. The air compressing device 1 is connected with one end of a main pipeline 8, the other end of the main pipeline 8 is connected with a three-way valve 3 in a first reagent unit, and two ends of a branch pipe 7 are respectively connected with the three-way valve 3 and a novel reagent box 5. An extension pipe 4 is arranged between the three-way valves 3 of the adjacent gas distribution units, the novel reagent kit 5 is a closed container, reagents are filled in the novel reagent kit, and the reagents in the novel reagent kit can be quantitatively discharged by compressed gas. All be equipped with quick-operation joint 2 between trunk line 8 and three-way valve 3, three-way valve 3 and branch pipe 7, branch pipe 7 and novel kit 5, three-way valve 3 and the extension pipe 4. Compressed gas that calm anger device 1 provided carries novel kit 5 after trunk line 8, three-way valve 3 and branch pipe 7 after filtering, drying to ensure the normal work of novel kit 5.

Adjacent three-way valves 3 may be directly connected by quick couplings 2, and may be connected by extension pipes 4 if necessary to extend the distance between them. Therefore, the reagent units used in the test need only be connected in sequence, either directly or via the extension tube 4. The quick connector 2 is divided into two parts which are respectively arranged on the parts to be butted, and the parts can be conveniently and quickly assembled and disassembled through the quick connector 2.

As shown in fig. 1 to 5, the three-way valve 3 mainly includes two parts, namely a valve core 32 and a valve body 31, the valve core 32 is a sphere, the surface of the sphere contacting with the valve body 31 is a sealing surface, and a T-shaped hole is formed inside the sphere. The spool 32 is rotatable inside the valve body 31. The three-way valve 3 is changed to an operating state every time the spool 31 is rotated 90 degrees. The three-way valve 3 has four working states. Fig. 2 to 5 show the operating state of the valve element 31 after rotating at 90 degrees counterclockwise, the direction of the arrow indicates the direction in which the gas can flow through the three-way valve 3, and the arrow with an X sign indicates the off state.

The four operating states of the three-way valve 3 are as follows:

FIG. 2: top, bottom and left, fig. 3: three-way valve is closed, fig. 4: top in bottom out, fig. 5: and (4) carrying out top feeding and left discharging.

The on-off of the gas source of each reagent unit can be conveniently controlled through each state of the three-way valve 3, compressed gas can be conveniently distributed to each reagent unit, and convenience is provided for the combination and the disassembly of the reagent units.

When the quick connection between the branch pipe 7 and the three-way valve 3 is disconnected, the check valve 6 on the branch pipe 7 can prevent the compressed gas in the novel reagent cartridge 5 from being ejected through the branch pipe 7 to cause an accident. The check valve 6 on the main pipeline 8 can prevent the compressed gas from flowing back after the check valve 6 after the compressor 1 stops running or fails.

As shown in fig. 6 and 7, the novel reagent kit 5 comprises a closed box body 56, an air inlet 57 at the top of the box body 56 and a liquid outlet pipe 58 at the bottom of the box body 56, wherein the air inlet 57 is connected with the three-way valve 3 through a branch pipe 7. Box body 56, drain pipe 58 and air inlet 57 all adopt high strength plastic or stainless steel to make, drain pipe 58 be the cylinder, its inner wall lower part is equipped with the sealed 59 pad of circular shape rubber rather than fixed connection, sealed 59 centers of filling up are equipped with the circular shape liquid outlet 51 that runs through its upper and lower surface perpendicularly, liquid outlet 51 top is equipped with the ball 53 of steel, ball 53 diameter is greater than liquid outlet 51 diameter, ball 53 upper portion is equipped with rather than fixed connection's bar magnet 54, ball 53 and bar magnet 54 can be in the inside free slip from top to bottom of drain pipe 58. The center of the top of the sealing gasket 59 is provided with a spherical concave pit, and the bottom of the concave pit is communicated with the liquid outlet 51. And an electromagnetic coil 55 fixedly connected with the liquid outlet pipe 58 is arranged on the upper side of the outer part of the liquid outlet pipe 58. The bottom of the liquid outlet pipe 58 is provided with a ring-shaped magnet 52 fixedly connected with the liquid outlet pipe. The box body 56 is internally provided with reagents for experiments, and the air inlet 57 communicates the interior of the box body 56 with an external air source, so that certain air pressure can be kept in the box body 56. When the electromagnetic coil 55 is de-energized, the ball 53 and the magnetic rod 54 fixedly connected with the ball 53 can reliably block the liquid outlet 51 under the action of gravity, the attraction of the annular magnet 52 and the pressure of the liquid in the box body 56; when the electromagnetic coil 55 is powered, it generates an electromagnetic attraction force on the magnetic rod 54 and the ball 53, which is greater than the sum of the gravity acting on the magnetic rod 54 and the ball 53, the attraction force of the ring-shaped magnet 52 and the pressure inside the box 56, so that the magnetic rod and the ball 53 slide upwards along the inner wall of the liquid outlet pipe 58 under the electromagnetic attraction force of the electromagnetic coil 55, so as to separate the ball 53 from the liquid outlet 51, and the reagent inside the box 56 is discharged through the liquid outlet 51.

Because the gaps between the liquid outlet pipe 58 and the magnetic rod 54, and between the ball 53 and the liquid outlet pipe 58 are fixed values, and the size of the hole in the center of the sealing pad 59 and the size of each hole in the liquid outlet pipe 58 are also fixed values, the amount of the reagent flowing out of the box 56 in unit time is related to the air pressure in the box 56 and the viscosity of the reagent. Therefore, when the air pressure inside the cartridge 56 and the viscosity of the reagent are known, the release amount of the reagent inside the cartridge 56 can be controlled by controlling the power-on time of the electromagnetic coil 55, and thus the novel reagent cartridge 5 is more suitable for an automatic test system.

Claims

1. The utility model provides a novel reagent addition system, its characterized in that, it is including pressing gas device (1) and reagent unit, the reagent unit includes novel kit (5), be equipped with trunk line (8) between pressing gas device (1) and the reagent unit, it carries the reagent unit with compressed gas through trunk line (8) to press gas device (1).

2. The novel reagent adding system according to claim 1, wherein the novel reagent cartridge (5) comprises a cartridge body (56) and a cylindrical liquid outlet pipe (58) fixed at the bottom thereof, a circular sealing gasket (59) fixedly connected with the liquid outlet pipe (58) is arranged at the lower part of the inner wall of the liquid outlet pipe, the sealing gasket (59) is provided with a circular liquid outlet (51) vertically penetrating through the center of the sealing gasket, the top of the liquid outlet (51) is provided with a ball (53) which can slide on the inner wall of the liquid outlet pipe (58), a magnetic bar (54) which can slide on the inner wall of the liquid outlet pipe (58) is fixed at the upper part of the ball (53), an electromagnetic coil (55) fixedly connected with the liquid outlet pipe (58) is arranged on the upper side outside the liquid outlet pipe, the top of the box body (56) is provided with an air inlet (57) which is fixedly connected with the box body and is used for communicating the inside and the outside of the box body, and the air inlet (57) is connected with the main pipeline (8).

3. The novel reagent adding system as claimed in claim 2, wherein the top center of the sealing pad (59) is provided with a spherical pit, the bottom of the spherical pit is communicated with the liquid outlet (51), and the ball (53) is pressed in the spherical pit by the magnetic rod (54).

4. The novel reagent adding system as claimed in claim 2, wherein the bottom of the liquid outlet pipe (58) is provided with a ring-shaped magnet (52) fixedly connected with the liquid outlet pipe.

5. The novel reagent addition system according to claim 1, wherein the reagent unit further comprises a gas distribution valve provided between the novel reagent cartridge (5) and the main conduit (8).

6. The novel reagent addition system according to claim 5, characterized in that a branch pipe (7) is provided between the novel reagent cartridge (5) and the gas distribution valve.

7. The novel reagent addition system according to claim 5, wherein the gas distribution valve is a three-way valve (3).

8. The novel reagent adding system of claim 5, wherein the reagent units comprise a plurality of reagent units which are connected in sequence, an extension pipe (4) is arranged between every two adjacent reagent units, and two ends of the extension pipe (4) are respectively connected with the adjacent distributing valves.

9. The novel reagent addition system according to claim 6, characterized in that a one-way valve (6) is provided on the branch pipe (7).

10. The novel reagent addition system according to claim 1, characterized in that a one-way valve (6) is provided on the main conduit (8).