CN210465464U

CN210465464U - Accurate quantitative sample injector for combined trace liquid

Info

Publication number: CN210465464U
Application number: CN201921077352.1U
Authority: CN
Inventors: 吴红兵; 刘琴; 刘杨; 雷瑞斌
Original assignee: Jiangsu Yinuo Weisheng Biotechnology Co ltd
Current assignee: Jiangsu Yinuo Weisheng Biotechnology Co ltd
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-05-05
Anticipated expiration: 2029-07-10

Abstract

The utility model relates to an accurate quantitative injector of trace liquid of gang Row, evenly arrange and interconnect's injector including a plurality of, the injector includes the gasbag, places bag, capillary limit liquid pipe and quantitative burette, it sets up to place the bag the gasbag below just communicates with the gasbag through the trachea, quantitative burette sets up in the one side of placing the bag, and quantitative burette's top is passed through with the top of placing the bag capillary limit liquid pipe intercommunication. The utility model discloses an utilize the injector that allies oneself with row and set up, the liquid sample is absorb to the high efficiency, utilizes capillary limit liquid pipe to inhale unnecessary liquid and places the bag to when extrusion gasbag dropwise add liquid, only the liquid in the quantitative burette can be extruded, therefore this utility model sample, the efficient and very accurate of application of sample.

Description

Accurate quantitative sample injector for combined trace liquid

Technical Field

The utility model relates to a trace liquid sample injector especially relates to an accurate quantitative sample injector of trace liquid of ally oneself with row.

Background

In biotechnology experiment, medical science biochemical inspection is clinical, because operating personnel is in order to guarantee the accurate nature of sample, use two solitary pipettes usually, in proper order, sample alone, the inefficiency, in order to solve this difficulty, patent number CN201810629413.4 proposes an accurate trace liquid dilution pipettor, utilize the automatic sample of absorbing of capillary of pipette, directly squeeze into the diluent with the sample, pinch the gasbag volume behind the misce bene and get the dilute solution again, but when the sample volume that needs to draw is more, when length is greater than 80mm promptly, the unable automatic accurate absorption of capillary, and unable small batch, the sample is absorb to disposable high efficiency, the experimental cost has not only been increased, and inefficiency, it is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the defect of prior art, provide a can small batch volume, disposable, absorb the accurate ration sample injector of row trace liquid of sample accurately.

The utility model discloses a realize through following technical scheme: the utility model provides an accurate quantitative injector of trace liquid of gang Row, includes that a plurality of evenly arranges and interconnect's injector, the injector includes the gasbag, places bag, capillary limit liquid pipe and quantitative burette, it sets up to place the bag the gasbag below just communicates with the gasbag through the trachea, quantitative burette sets up in the one side of placing the bag, and quantitative burette's top and the top of placing the bag are passed through capillary limit liquid pipe intercommunication.

In order to facilitate the sample absorption in small batches and at one time, the sample injectors are sequentially arranged, connecting pieces are arranged between adjacent sample injectors, and the connecting pieces are used for connecting the sample injectors.

In order to increase the amount of the disposable sample, the sample injector is provided with a plurality of groups and is arranged in pairs, each pair of sample injectors comprises a first sample injector and a second sample injector, and a quantitative dropper of the first sample injector is abutted against and fixedly connected with a quantitative dropper of the second sample injector.

In order to improve the sucking efficiency, a suction pipe is inserted at the bottom of the quantitative dropper and is detachably connected with the quantitative dropper.

In order to enhance the firmness of the straw, a limiting ring is arranged at the position where the inner wall of the quantitative dropper abuts against the outer wall of the straw, and the limiting ring is fixedly connected with the quantitative dropper.

In order to improve the accuracy, the liquid is further prevented from dropping into the quantitative dropping pipe from the placing bag downstream, and the end of the capillary liquid limiting pipe connected with the quantitative dropping pipe is higher than the end connected with the placing bag.

In order to save cost and improve efficiency, the air bag, the air pipe, the placing bag, the capillary liquid limiting pipe and the quantitative dropper are integrally formed by injection molding.

The accuracy is further improved, and the volume of the air bag is larger than that of the quantitative dropper.

The utility model has the advantages that: utilize the injector that the antithetical couplet arranged to set up, the high efficiency absorbs liquid sample, utilizes capillary limit liquid pipe to inhale unnecessary liquid and places the bag to when extrusion gasbag dropwise add liquid, only the liquid in the quantitative burette can be extruded, therefore this utility model sample, the application of sample is efficient and very accurate.

Drawings

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

FIG. 2 is a schematic diagram of the structure of the sample injector;

fig. 3 is a schematic structural view of another embodiment of the present invention;

in the figure: 1. a sample injector; 2. an air bag; 3. placing the bag; 4. a capillary liquid limiting tube; 5. a quantitative dropper; 6. an air tube; 7. a straw; 8. a limiting ring; 9. connecting sheets; 10. a first sample injector; 11. a second sample injector.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be clearly and clearly defined. In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc. refer to directions of the attached drawings only. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention.

As shown in fig. 1 and 2, a sample injector for accurately quantifying micro-liquid in a row comprises a plurality of sample injectors 1 which are uniformly arranged and connected with each other, wherein each sample injector 1 comprises an air bag 2, a placing bag 3, a capillary liquid limiting tube 4 and a quantitative dropper 5, the placing bag 3 is arranged below the air bag 2 and is communicated with the air bag 2 through an air tube 6, the quantitative dropper 5 is arranged on one side of the placing bag 3, the top of the quantitative dropper 5 is communicated with the top of the placing bag 3 through the capillary liquid limiting tube 4, in order to improve the accuracy, the liquid is further prevented from dropping into the quantitative dropper 5 from the placing bag 3 in a downstream manner, one end of the capillary liquid limiting tube 4 connected with the quantitative dropper 5 is higher than one end of the capillary liquid limiting tube connected with the placing bag 3, after the liquid is sucked, the redundant liquid flows to the bottom of the placing bag 3 through the capillary liquid limiting tube 4 due to the negative pressure in the air bag 2, place 3 top inner chambers of bag and do not have liquid, gasbag 2 promptly, place the cavity that forms the intercommunication between 3 tops of bag, capillary limit liquid pipe 4, the intracavity pressure increase directly extrudees quantitative burette 5 and only extrudes the liquid in the quantitative burette 5 when the extrusion application of sample, in order to improve absorption efficiency, it has straw 7 to peg graft in 5 bottoms of quantitative burette, straw 7 can be dismantled with quantitative burette 5 and be connected, in order to strengthen the fastness of

straw

7, 5 inner walls of quantitative burette and 7 outer walls of straw support to locate and be equipped with spacing ring 8, spacing ring 8 and 5 fixed connection of quantitative burette, in order to practice thrift cost, raise the efficiency, gasbag 2, trachea 6 place bag 3, capillary limit

liquid pipe

4 and 5 integrative injection moulding of quantitative burette, further improve the accuracy, the volume of gasbag 2 is greater than quantitative burette 5's volume.

In order to facilitate the absorption of samples in small batches at a time, the sample injectors 1 are sequentially arranged and a connecting sheet 9 is arranged between adjacent sample injectors 1, wherein the connecting sheet 9 is used for connecting the sample injectors 1.

In another embodiment, as shown in fig. 3, in order to increase the amount of sample taken at one time, the sample injectors 1 are provided in groups and are arranged in pairs, each pair of sample injectors 1 includes a first sample injector 10 and a second sample injector 11, the quantitative dropper 5 of the first sample injector 10 is abutted against and fixedly connected to the quantitative dropper 5 of the second sample injector 11, and a patch is provided between each adjacent pair of sample injectors 1, the patch being used to connect the adjacent sample injectors 1.

The working principle is as follows: when liquid is sucked, the air bag 2 is pinched to generate negative pressure inside the quantitative dropper 5, the bottom of the quantitative dropper 5 of each sample injector 1 is simultaneously immersed into the liquid, the air bag 2 is released, the liquid is sucked into the quantitative dropper 5 by the suction tube 7, the redundant liquid flows into the placing bag 3 from the capillary liquid limiting tube 4 at the moment, and the sampling is finished; during the application of sample, because capillary liquid limiting pipe 4 sets up and is placing the top of bag 3, the back is accomplished in the operation, and capillary liquid limiting pipe 4 is direct not with the liquid intercommunication of placing bag 3, and the gasbag 2 is held between the fingers to the manual hand, and the liquid in placing bag 3 is motionless, only discharges the liquid in quantitative burette 5.

Compared with the prior art, this allies oneself with accurate ration injector of row trace liquid simple structure utilizes the injector 1 that allies oneself with the row and set up, and the liquid sample is absorb to the high efficiency, utilizes capillary limit liquid pipe to inhale unnecessary liquid simultaneously and places bag 3 to when 2 dropwise add liquid of extrusion gasbag, only the liquid in the quantitative burette 5 can be extruded, therefore this utility model sample, the application of sample is efficient and very accurate, convenient.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The utility model provides an accurate quantitative injector of trace liquid of ally oneself with row, characterized by: evenly arrange and interconnect's application of sample ware (1) including a plurality of, application of sample ware (1) includes gasbag (2), places bag (3), capillary liquid limit pipe (4) and quantitative burette (5), place bag (3) and set up gasbag (2) below and through trachea (6) and gasbag (2) intercommunication, quantitative burette (5) set up in the one side of placing bag (3), and the top of quantitative burette (5) passes through with the top of placing bag (3) capillary liquid limit pipe (4) intercommunication.

2. The precise quantitative sample injector for inline micro-liquid according to claim 1, wherein: the sample adding device is characterized in that the sample adding devices (1) are sequentially arranged, connecting pieces (9) are arranged between the adjacent sample adding devices (1), and the connecting pieces (9) are used for connecting the sample adding devices (1).

3. The precise quantitative sample injector for inline micro-liquid according to claim 1, wherein: the sample injector (1) is provided with a plurality of groups and is arranged in pairs, each pair of sample injectors (1) comprises a first sample injector (10) and a second sample injector (11), and quantitative droppers (5) of the first sample injector (10) are abutted against and fixedly connected with quantitative droppers (5) of the second sample injector (11).

4. The precise quantitative sample injector for inline micro-liquid according to claim 2 or 3, wherein: the bottom of the quantitative dropper (5) is inserted with a straw (7), and the straw (7) is detachably connected with the quantitative dropper (5).

5. The precise quantitative sample injector for inline micro-liquid according to claim 4, wherein: the quantitative dropper is characterized in that a limiting ring (8) is arranged at the position where the inner wall of the quantitative dropper (5) abuts against the outer wall of the sucker (7), and the limiting ring (8) is fixedly connected with the quantitative dropper (5).

6. The precise quantitative sample injector for inline micro-liquid according to claim 2 or 3, wherein: one end of the capillary liquid limiting pipe (4) connected with the quantitative dropper (5) is higher than one end of the capillary liquid limiting pipe connected with the placing bag (3).

7. The precise quantitative sample injector for inline micro-liquid according to claim 2 or 3, wherein: the air bag (2), the air pipe (6), the placing bag (3), the capillary liquid limiting pipe (4) and the quantitative dropper (5) are integrally formed by injection molding.

8. The precise quantitative sample injector for inline micro-liquid according to claim 2 or 3, wherein: the volume of the air bag (2) is larger than that of the quantitative dropper (5).