CN213037762U

CN213037762U - Filter absorption formula nucleic acid and draw appearance fast

Info

Publication number: CN213037762U
Application number: CN202021584450.7U
Authority: CN
Inventors: 叶辉; 吴华华; 谢道祥; 何艳芬
Original assignee: Shanghai Meixi Instrument Co ltd
Current assignee: Shanghai Meixi Instrument Co ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-04-23
Anticipated expiration: 2030-08-03

Abstract

The utility model belongs to the technical field of nucleic acid rapid extraction appearance, especially a filtration adsorption type nucleic acid rapid extraction appearance, including the extraction appearance main part and the extraction post of cooperation installation in the extraction appearance main part, the left side fixed mounting of extraction appearance main part has the cartridge filter, sliding connection has the piston on the inner wall of cartridge filter, is fixed with the air extraction rod on the roof of piston, and the inside of cartridge filter is provided with gas filtering mechanism, the bottom threaded connection of cartridge filter has the bottom, and bottom fixedly connected with outlet duct, the outer wall left side of cartridge filter is equipped with the heating cabinet, installs two sets of heating pipes through locking bolt on the inner wall of heating cabinet, the cooperation is installed the connecting pipe between the bottom of heating cabinet and the outlet duct; the utility model discloses the convenience filters the combustion gas, detach the peculiar smell in the gas, and it is convenient to filter, has improved the practicality of the quick appearance that draws of nucleic acid, and the heating is convenient, and easy operation can improve the success rate that nucleic acid drawed, is fit for promoting.

Description

Filter absorption formula nucleic acid and draw appearance fast

Technical Field

The utility model relates to a quick extraction appearance technical field of nucleic acid especially relates to a filter absorption formula quick extraction appearance of nucleic acid.

Background

The nucleic acid extractor is an instrument which automatically finishes the work of extracting the nucleic acid of a sample by using a matched nucleic acid extracting reagent. The method is widely applied to various fields of disease control center, clinical disease diagnosis, blood transfusion safety, forensic medicine identification, environmental microorganism detection, food safety detection, animal husbandry, molecular biology research and the like.

The instrument is drawed fast to nucleic acid on the market at present, and the function is single, when in actual use, is difficult to realize gaseous filtration and heating, when extracting the post and can't reach required temperature, has reduced the success rate of nucleic acid extraction, and the gas in the instrument is directly discharged to the nucleic acid fast extraction simultaneously, causes the pollution to external environment easily.

In order to solve the problems, the application provides a filtering and adsorbing type nucleic acid rapid extraction instrument.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem who exists among the background art, the utility model provides a filter absorption formula nucleic acid and draw appearance fast has the convenience and filters the combustion gas, detach the peculiar smell in the gas, and it is convenient to filter, has improved the practicality of nucleic acid and has drawn the appearance fast, and the heating is convenient, and easy operation can improve the success rate that nucleic acid drawed, is fit for the characteristics of popularization.

(II) technical scheme

For solving the problem, the utility model provides a filter absorption formula nucleic acid draws appearance fast, install the post of drawing in the appearance main part including drawing appearance main part and cooperation, the left side fixed mounting who draws the appearance main part has the cartridge filter, sliding connection has the piston on the inner wall of cartridge filter, is fixed with the air exhaust pole on the roof of piston, and the inside of cartridge filter is provided with gas filtering mechanism, the bottom threaded connection of cartridge filter has the bottom, bottom fixedly connected with outlet duct, the outer wall left side of cartridge filter is equipped with the heating cabinet, installs two sets of heating pipes through locking bolt on the inner wall of heating cabinet, the connecting pipe is installed in the cooperation between the bottom of heating cabinet and the outlet duct, the outside winding of drawing the post has the external pipe, and the cartridge filter with draw the appearance main part and draw the intercommunication between the post to have.

Preferably, the pipeline connecting mechanism comprises an air inlet pipe, a shunt pipe and an air suction pipe, one end of the shunt pipe is communicated with the inside of the filter cylinder, and the other end of the shunt pipe is respectively connected with the air inlet pipe and the air suction pipe.

Preferably, the one end of intake pipe and the lower extreme fixed connection who connects the pipe outward, the upper end of breathing pipe and the upper end fixed connection who draws the appearance main part, the one end that intake pipe and breathing pipe are close to each other all is equipped with first valve.

Preferably, the gas filtering mechanism comprises a first gas filter screen and a second gas filter screen, grooves are formed in two sides of the top of the bottom cover, supporting rods are inserted into the grooves, and the first gas filter screen and the second gas filter screen are arranged at the tops of the two supporting rods.

Preferably, the inner wall both sides of cartridge filter all are fixed with the crossbearer, and the bottom welding of crossbearer has the spring, the bottom of spring and the top contact setting of second gas filter screen, and the setting of second gas filter screen is in the bottom of first gas filter screen.

Preferably, the air pumping rod is of a T-shaped structure, and the upper end of the air pumping rod extends to the outside of the filter cylinder.

Preferably, the connecting pipe and the air outlet pipe are respectively provided with a second valve.

The above technical scheme of the utility model has following profitable technological effect:

through being provided with the breathing pipe, air extraction rod and piston, the inside of cartridge filter is inhaled to the gas in the appearance main part will be drawn to the convenience, and through the outside through outlet duct exhaust cartridge filter, first gas filter and the second gas filter through setting up, the convenience is filtered the combustion gas, detach the peculiar smell in the gas, it is convenient to filter, the practicality of the quick appearance that draws of nucleic acid has been improved, through being provided with the connecting pipe, the second valve, the air extraction rod, the heating pipe, the connecting pipe, the outlet duct, shunt tubes and intake pipe, realized heating gas, and the cooperation has an external pipe, be convenient for transmit the heat to the inside of intake pipe, make the temperature that draws the post rise evenly, the heating is convenient, and the operation is simple, can improve the success rate that nucleic acid drawed, and is.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic front view of the structure of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A of the present invention;

fig. 4 is a schematic structural diagram of a piston according to the present invention.

In the figure: 1. an extraction instrument main body; 2. an extraction column; 3. a filter cartridge; 4. a piston; 5. a suction rod; 6. a bottom cover; 7. an air outlet pipe; 8. a heating box; 9. heating a tube; 10. a connecting pipe; 11. a shunt tube; 12. an air inlet pipe; 13. an air intake duct; 14. an external connection pipe; 15. a first gas screen; 16. a second gas screen; 17. a spring; 18. and (5) transverse blocks.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in FIGS. 1-4, the utility model provides a filtration and adsorption type nucleic acid rapid extraction apparatus, which comprises an extraction apparatus main body 1 and an extraction column 2 installed on the extraction apparatus main body 1 in a matching way, a filter cylinder 3 is fixedly arranged on the left side of the extraction instrument main body 1, a piston 4 is connected on the inner wall of the filter cylinder 3 in a sliding way, an air suction rod 5 is fixed on the top wall of the piston 4, a gas filtering mechanism is arranged in the filter cylinder 3, the bottom of the filter cartridge 3 is connected with a bottom cover 6 through screw threads, the bottom cover 6 is fixedly connected with an air outlet pipe 7, the left side of the outer wall of the filter cylinder 3 is provided with a heating box, the inner wall of the heating box is provided with two groups of heating pipes 9 through locking bolts, connecting pipe 10 is installed in the cooperation between the bottom of heating cabinet and the outlet duct 7, the outside winding that draws post 2 has external pipe 14, and cartridge filter 3 and extraction appearance main part 1 and draw and communicate between the post 2 to have pipeline coupling mechanism.

In this embodiment, it should be noted that the pipeline connecting mechanism includes an air inlet pipe 12, a shunt pipe 11 and an air suction pipe 13, one end of the shunt pipe 11 is communicated with the inside of the filter cartridge 3, the other end of the shunt pipe 11 is connected with the air inlet pipe 12 and the air suction pipe 13 respectively, one end of the air inlet pipe 12 is fixedly connected with the lower end of the external connection pipe 14, the upper end of the air suction pipe 13 is fixedly connected with the upper end of the extraction instrument main body 1, and the ends of the air inlet pipe 12 and the air suction pipe 13, which are close to each other.

It should be further noted that, by closing the first valve on the air inlet pipe 12, opening the first valve on the air suction pipe 13, and pulling the air pumping rod 5 upward, the air inside the extraction instrument main body 1 is sucked into the filter cartridge 3 through the air suction pipe 13, so as to facilitate the air entering the filter cartridge 3 for filtering.

In this embodiment, it should be noted that the gas filtering mechanism includes a first gas filter 15 and a second gas filter 16, and both sides of the top of the bottom cover 6 are provided with grooves, and support rods are inserted into the grooves, and the first gas filter 15 and the second gas filter 16 are disposed on the tops of the two support rods.

It should be further explained that, the shape of first gas filter screen 15 and second gas filter screen 16 and the shape size phase-match of cartridge filter 3, first gas filter screen 15 adopts the active carbon filter screen, second gas filter screen 16 adopts photocatalyst purification filter screen, when closing the second valve on the connecting pipe 10, when opening the second valve on the outlet duct 7, make the gas in the cartridge filter 3 discharge through outlet duct 7, first gas filter screen 15 and second gas filter screen 16 filter and purify gas during the discharge, the filter effect is good.

In this embodiment, it should be noted that, both sides of the inner wall of the filter cartridge 3 are fixed with a cross block 18, a spring 17 is welded at the bottom of the cross block 18, the bottom end of the spring 17 is in contact with the top of the second gas filter screen 16, and the second gas filter screen 16 is arranged at the bottom of the first gas filter screen 15.

It should be further noted that, by rotating the bottom cover 6, the bottom cover 6 is removed, so that the second gas filter screen 16 and the first gas filter screen 15 can be replaced conveniently.

In this embodiment, it should be noted that the air pumping rod 5 is in a T-shaped structure, and the upper end of the air pumping rod 5 extends to the outside of the filter cartridge 3.

It should be further noted that a rod hole is formed in the upper end of the filter cartridge 3, the outer wall of the air pumping rod 5 and the inner wall of the rod hole are slidably disposed, and the piston 4 and the inner wall of the filter cartridge 3 are hermetically disposed.

In this embodiment, it should be noted that the connecting pipe 10 and the air outlet pipe 7 are both provided with a second valve.

It should be further noted that the right end of the connecting pipe 10 is connected to the lower end of the air outlet pipe 7, and the second valve on the air outlet pipe 7 is located below the connecting pipe 10.

The working principle is as follows: when the device is used, the air suction pipe 13 is opened, the air suction rod 5 is pulled, the air suction rod 5 drives the piston 4 to move upwards, so that the gas in the extraction instrument main body 1 is sucked into the filter cylinder 3 through the air suction pipe 13, the air suction rod 5 is pushed to move downwards, the air suction rod 5 drives the piston 4 to move downwards, the gas is exhausted out of the filter cylinder 3 through the air outlet pipe 7, the gas is filtered through the first gas filter screen 15 and the second gas filter screen 16, the gas in the extraction instrument main body 1 is conveniently filtered, peculiar smell in the gas is removed, the filtering is convenient, the practicability of the rapid nucleic acid extraction instrument is improved, the second valve on the connecting pipe 10 is opened, the heating pipe 9 is started to work simultaneously, the gas during heating is sucked into the external pipe 14 through the connecting pipe 10, the air outlet pipe 7, the shunt pipe 11 and the air inlet pipe 12, and heat in the external pipe 14 is transferred into the air inlet pipe 12, the temperature of the extraction column 2 is uniformly increased, the heating is convenient, the operation is simple, the success rate of nucleic acid extraction can be improved, and the method is suitable for popularization. The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A filtration adsorption type nucleic acid rapid extraction instrument comprises an extraction instrument main body (1) and extraction columns (2) which are arranged on the extraction instrument main body (1) in a matching manner, and is characterized in that a filter cartridge (3) is fixedly arranged on the left side of the extraction instrument main body (1), a piston (4) is connected to the inner wall of the filter cartridge (3) in a sliding manner, an air pumping rod (5) is fixed to the top wall of the piston (4), a gas filtering mechanism is arranged inside the filter cartridge (3), a bottom cover (6) is in threaded connection with the bottom of the filter cartridge (3), an air outlet pipe (7) is fixedly connected with the bottom cover (6), a heating box is assembled on the left side of the outer wall of the filter cartridge (3), two groups of heating pipes (9) are installed on the inner wall of the heating box through locking bolts, a connecting pipe (10) is installed between the bottom of the heating box and the air outlet pipe, the filter cartridge (3) is communicated with the extraction instrument main body (1) and the extraction column (2) through a pipeline connecting mechanism.

2. The rapid nucleic acid extracting apparatus according to claim 1, wherein the pipeline connecting mechanism comprises an air inlet pipe (12), a flow dividing pipe (11) and an air suction pipe (13), one end of the flow dividing pipe (11) is communicated with the interior of the filter cartridge (3), and the other end of the flow dividing pipe (11) is connected with the air inlet pipe (12) and the air suction pipe (13) respectively.

3. The rapid nucleic acid extracting apparatus according to claim 2, wherein one end of the air inlet tube (12) is fixedly connected to the lower end of the external connecting tube (14), the upper end of the air suction tube (13) is fixedly connected to the upper end of the main body (1), and the ends of the air inlet tube (12) and the air suction tube (13) that are close to each other are equipped with the first valve.

4. The rapid nucleic acid extracting apparatus according to claim 1, wherein the gas filtering mechanism comprises a first gas filter (15) and a second gas filter (16), two sides of the top of the bottom cover (6) are provided with grooves, support rods are inserted into the grooves, and the first gas filter (15) and the second gas filter (16) are disposed on the top of the two support rods.

5. The rapid nucleic acid extracting apparatus according to claim 1, wherein a cross block (18) is fixed on both sides of the inner wall of the filter cartridge (3), a spring (17) is welded on the bottom of the cross block (18), the bottom end of the spring (17) is in contact with the top of the second gas filter screen (16), and the second gas filter screen (16) is disposed at the bottom of the first gas filter screen (15).

6. The rapid nucleic acid extracting apparatus according to claim 1, wherein the air pumping rod (5) is of a T-shaped structure, and the upper end of the air pumping rod (5) extends to the outside of the filter cartridge (3).

7. The rapid nucleic acid extracting apparatus of claim 1, wherein the connecting tube (10) and the air outlet tube (7) are equipped with second valves.