CN211070133U

CN211070133U - Liquid separation device

Info

Publication number: CN211070133U
Application number: CN201921900013.9U
Authority: CN
Inventors: 吴岳琴; 李秀通; 俞琦娅; 彭醒醒; 陆雯; 王珍
Original assignee: Greentown Nongke Detection Technology Co ltd
Current assignee: Greentown Nongke Detection Technology Co ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-07-24
Anticipated expiration: 2029-11-06

Abstract

The utility model discloses a liquid separation device, concretely relates to laboratory apparatus, including the first drawing liquid device that is used for extracting sample liquid and with the drain device of the leading-in test tube of sample liquid, state first drawing liquid device including barrel, first piston and the first piston rod that holds sample liquid, first piston can slide in the inside of barrel, first piston rod is equipped with the water proof piece towards the one end of first piston is fixed, correspondingly, the middle part of first piston is equipped with adaptation water proof piece pivoted holding tank, the upper and lower both sides of holding tank are equipped with the drain tank that runs through first piston, are equipped with the outlet trough corresponding with the drain tank on the water proof piece, the lower extreme of barrel is equipped with the feed liquor pipe, be equipped with first on the feed liquor pipe and open the valve. The utility model has the advantages of can annotate the liquid to the multiunit test tube simultaneously.

Description

Liquid separation device

Technical Field

The utility model relates to a laboratory apparatus specifically is a liquid separation device.

Background

In the process of detecting a sample solution, a laboratory usually needs to set control experiment groups with different gradient concentrations, or set a plurality of different parallel experiment groups for the same sample solution. The general manipulations by the experimenter are: the experimenter uses a pipette to measure sample liquids of different groups, and the sample liquids are respectively placed in different test tubes. The sample solutions in three different tubes were used as parallel experimental groups.

However, in the above process, the experimenter needs to operate the pipette to perform the pipetting, which not only makes the operation more inconvenient and the efficiency lower, but also has low precision of the pipetting.

SUMMERY OF THE UTILITY MODEL

The utility model provides a divide liquid device, this divide liquid device has the advantage that can annotate the liquid to the multiunit test tube simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme:

a liquid separation device comprises a first liquid pumping device for pumping sample liquid, wherein the first liquid pumping device comprises a cylinder for containing the sample liquid, a first piston and a first piston rod, the first piston can slide in the cylinder, a water-proof sheet is fixedly arranged at one end, facing the first piston, of the first piston, correspondingly, a containing groove matched with the water-proof sheet to rotate is arranged in the middle of the first piston, liquid outlet grooves penetrating through the first piston are formed in the upper side and the lower side of the containing groove, water outlet grooves corresponding to the liquid outlet grooves are formed in the water-proof sheet, a liquid inlet pipe is arranged at the lower end of the cylinder, and a first opening and closing valve is arranged on the liquid inlet pipe; the device also comprises a liquid guide device for guiding the sample liquid into the test tube.

Preferably, the first piston rod is hollow, the first piston rod comprises an upper rod and a lower rod, one end of the lower rod is fixed to the upper end face of the first piston, the other end of the lower rod is detachably fixed to the upper rod, and a liquid outlet hole is formed in the side wall of the lower rod; the liquid guide device comprises a second piston, a third piston, a second piston rod and a liquid guide pipe, the second piston is rotatably connected with the third piston, and the second piston is positioned below the third piston; the second piston is provided with a second liquid outlet hole, a first liquid outlet hole is arranged at the position corresponding to the position of the second liquid outlet hole on the third piston, and the liquid guide pipe is communicated with the first liquid outlet hole.

Preferably, the side wall of the upper rod is provided with a limiting sliding groove, and correspondingly, the second piston is provided with a limiting sliding block matched with the limiting sliding groove.

Preferably, the first opening and closing valve comprises a rotating handle part and a baffle arranged in the liquid inlet pipe, a rotating groove is formed in the middle of the baffle, through grooves are formed in two sides of the rotating groove, and a sealing block matched with the rotating groove is arranged on the inner side of the rotating handle part.

Preferably, the upper rod and the lower rod are connected by a screw thread.

Preferably, the outside of barrel is equipped with the support body that is used for fixed test tube, be equipped with the through-hole that supplies the test tube to pass on the support body.

Preferably, one end of the upper rod, which faces away from the lower rod, is provided with a first handle part.

Preferably, the end of the second piston rod facing away from the third piston is provided with a second handle.

The utility model has the advantages that:

the utility model discloses in, the experimenter can put into the barrel with the lower extreme sample liquid of barrel earlier, and will connect the test tube of parallel control group sample liquid not to fix on arranging the support body in. The experimenter realizes the liquid pumping by upwards pumping the upper rod. And after the liquid is pumped, the first opening and closing valve is closed, the upper rod is rotated to enable the liquid outlet groove to correspond to the water outlet groove formed in the water-stop sheet, and the upper rod is pushed downwards to enable the sample liquid to enter the upper part of the first piston from the water outlet groove. Simultaneously, the experimenter can rotate the upper boom for the play liquid hole that sets up on the lower boom exposes. At this time, the experimenter can suck liquid by pulling up the second piston rod. After the imbibition was accomplished, rotate the upper boom once more and make out the liquid hole and plug up, experimenter can be through pushing down the second piston rod this moment for sample liquid enters into the test tube respectively through the catheter. In the liquid separation process, as the experimental conditions allow, a technician can directly pour the sample liquid into the cylinder (the liquid is positioned above the first piston) to perform the liquid separation operation. Divide liquid not only efficiently through using this device, and the volume is got the sample liquid accuracy that obtains and is also high (during actual operation, the accessible straw absorbs the sample liquid and carries out more accurate titration), is favorable to guaranteeing the accuracy of experimental result.

Drawings

FIG. 1 is a schematic view of a liquid separator according to embodiment 1;

FIG. 2 is a schematic view of a liquid separator according to embodiment 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a schematic structural view of a liquid separation device in embodiment 2.

In the figure: 1. barrel, 11, feed liquor pipe, 12, rotation stalk portion, 120, closing block, 13, baffle, 2, first piston, 21, water proof piece, 31, upper boom, 310, spacing spout, 32, lower beam, 320, go out the liquid hole, 33, first stalk portion, 4, second piston rod, 41, third piston, 410, first play liquid hole, 42, second piston, 420, spacing slider, 421, second play liquid hole, 43, catheter, 44, second stalk portion, 5, support body, 51, bottom plate, 52, connecting rod.

Detailed Description

Example 1

The embodiment provides a technical scheme:

as shown in fig. 1 ~ 3, a liquid separation device, including the first drawing liquid device that is used for extracting sample liquid and including the drain device with the leading-in test tube of sample liquid, first drawing liquid device is including the barrel 1, first piston 2 and the first piston rod that hold sample liquid, first piston 2 can slide in the inside of barrel 1, first piston rod is equipped with water-proof piece 21 towards the one end of first piston 2 is fixed, correspondingly, the middle part of first piston 2 is equipped with the water-proof piece 21 pivoted holding tank of adaptation, the upper and lower both sides of holding tank are equipped with the drain tank that runs through first piston 2, the lower extreme of barrel 1 is equipped with feed liquor pipe 11, be equipped with first on-off valve on feed liquor pipe 11.

As shown in fig. 2 and 3, the first piston rod is hollow, the first piston rod includes an upper rod 31 and a lower rod 32, one end of the lower rod 32 is fixed to the upper end surface of the first piston 2, the other end of the lower rod 32 is detachably fixed to the upper rod 31, and a liquid outlet 320 is formed in the side wall of the lower rod 32; the liquid guide device comprises a second piston 42, a third piston 41, a second piston rod 4 and a liquid guide pipe 43, wherein the second piston 42 is rotatably connected with the third piston 41, and the second piston 42 is positioned below the third piston 41; the second piston 42 is provided with a second liquid outlet hole 421, the third piston 41 is provided with a first liquid outlet hole 410 at a position corresponding to the position of the second liquid outlet hole 421, and the liquid guide tube 43 is communicated with the first liquid outlet hole 410.

As shown in fig. 3, the side wall of the upper rod 31 is provided with a limit sliding groove 310, and correspondingly, the second piston 42 is provided with a limit sliding block 420 matched with the limit sliding groove 310.

As shown in fig. 2, the first opening and closing valve includes a rotating handle 12 and a baffle 13 disposed inside the liquid inlet pipe 11, a rotating groove is disposed in the middle of the baffle 13, through grooves are disposed on both sides of the rotating groove, and a sealing block 120 adapted to the rotating groove is disposed on the inner side of the rotating handle 12.

In the present embodiment, the upper rod 31 and the lower rod 32 are connected by screw threads.

As shown in fig. 1, the outside of the cylinder 1 is provided with a frame body 5 for fixing the test tube, and the frame body 5 is provided with a through hole for the test tube to pass through.

As shown in fig. 2, the upper rod 31 is provided with a first handle portion 33 at an end thereof facing away from the lower rod 32.

As shown in fig. 2, the end of the second piston rod 4 facing away from the third piston 41 is provided with a second shank 44.

Example 2

As shown in fig. 4, this embodiment is further improved on the basis of embodiment 1. The lower end of the frame body 5 is provided with a bottom fixing plate 51, and the bottom fixing plate 51 and the frame body 5 are fixedly connected through a connecting rod. The present embodiment is different from embodiment 1 in that: the cylinder 1 and the frame 5 are not fixed. After the experimenter used this liquid device, can hand barrel 1 department, upwards take out whole first drawing liquid device and drainage device, and the fixed test tube of having divided liquid of placing on support body 5. At this moment, the transfer of test tube is realized to the laboratory technician accessible transfer support body 5 and end fixed plate 51, makes things convenient for the laboratory technician experiment more.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The liquid separation device is characterized by comprising a first liquid extraction device for extracting sample liquid, wherein the first liquid extraction device comprises a cylinder (1) for accommodating the sample liquid, a first piston (2) and a first piston rod, the first piston (2) can slide in the cylinder (1), one end, facing the first piston (2), of the first piston rod is fixedly provided with a water-isolating sheet (21), correspondingly, the middle part of the first piston (2) is provided with an accommodating tank which is matched with the water-isolating sheet (21) to rotate, the upper side and the lower side of the accommodating tank are provided with liquid outlet grooves which penetrate through the first piston (2), the water-isolating sheet (21) is provided with water outlet grooves corresponding to the liquid outlet grooves, the lower end of the cylinder (1) is provided with a liquid inlet pipe (11), and the liquid inlet pipe (11) is provided with a first opening and closing valve;

the device also comprises a liquid guide device for guiding the sample liquid into the test tube.

2. The liquid separation device according to claim 1, wherein the first piston rod is hollow, the first piston rod comprises an upper rod (31) and a lower rod (32), one end of the lower rod (32) is fixed with the upper end face of the first piston (2), the other end of the lower rod is detachably fixed with the upper rod (31), and the side wall of the lower rod (32) is provided with a liquid outlet hole (320);

the liquid guide device comprises a second piston (42), a third piston (41), a second piston rod (4) and a liquid guide pipe (43), the second piston (42) is rotatably connected with the third piston (41), and the second piston (42) is positioned below the third piston (41);

the second piston (42) is provided with a second liquid outlet hole (421), a first liquid outlet hole (410) is arranged at a position corresponding to the position of the second liquid outlet hole (421) on the third piston (41), and the liquid guide pipe (43) is communicated with the first liquid outlet hole (410).

3. A tapping device according to claim 2, wherein the side wall of the upper rod (31) is provided with a limit runner (310), and correspondingly the second piston (42) is provided with a limit slider (420) adapted to the limit runner (310).

4. The liquid separation device according to claim 1, wherein the first on-off valve comprises a rotating handle part (12) and a baffle plate (13) arranged inside the liquid inlet pipe (11), a rotating groove is arranged in the middle of the baffle plate (13), through grooves are arranged on two sides of the rotating groove, and a sealing block (120) matched with the rotating groove is arranged on the inner side of the rotating handle part (12).

5. A tapping device according to claim 2, wherein the upper rod (31) and the lower rod (32) are connected by means of a screw thread.

6. The liquid separation device according to claim 1, wherein a frame body (5) for fixing the test tube is arranged on the outer side of the cylinder body (1), and a through hole for the test tube to pass through is formed in the frame body (5).

7. A dispensing device according to claim 2, characterized in that the end of the upper rod (31) facing away from the lower rod (32) is provided with a first shank (33).

8. A liquid dispensing device as claimed in claim 1, characterized in that the end of the second piston rod (4) facing away from the third piston (41) is provided with a second shank (44).