CN216259234U - Laboratory liquid-liquid automatic extraction device - Google Patents

Abstract

The utility model relates to a laboratory liquid-liquid automatic extraction device, which comprises a tray for placing a plurality of sample bottles, wherein the tray is connected on a vertically extending slide rail in a sliding manner, and a driving device for driving the tray to slide is arranged below the tray. According to the utility model, through the arrangement of the tray, the driving device and the sample bottle, manual extraction is replaced, the health of personnel is ensured, the extraction efficiency is stabilized, and the automatic cleaning of the sample bottle is realized; the automatic entering of the extracting agent into the sample bottle is realized through the arrangement of a multi-path injection pump, a vent pipe and a multi-purpose pump; the preferred scheme can form a higher liquid level by the extraction agent with a small volume through the conical arrangement, thereby being beneficial to the separation of the extraction liquid.

Description

Laboratory liquid-liquid automatic extraction device

Technical Field

The utility model relates to the field of extraction, in particular to the technical field of automatic extraction, and specifically relates to a laboratory liquid-liquid automatic extraction device.

Background

There are many extraction modes in the laboratory, the most classical extraction method is manual extraction, but during manual extraction, operators can contact toxic reagents, which endangers the health of the operators; the force applied by operators and the shaking amplitude are changed, so the repeatability of extraction is poor, and the extraction efficiency is greatly changed; the labor intensity is higher; and the sample bottle needs to be cleaned manually, otherwise, the extraction is incomplete.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the laboratory liquid-liquid automatic extraction device, which uses an automatic extraction mode to replace manual extraction, ensures the health of personnel, stabilizes the extraction efficiency and realizes the automatic cleaning of sample bottles.

The liquid-liquid automatic extraction device comprises a tray fixedly connected with a plurality of sample bottles, the tray is connected to a vertically extending slide rail in a sliding mode, and a driving device for driving the tray to slide is arranged below the tray.

This use is novel when using, put into the sample bottle with the water sample and the extractant of gathering, then drive arrangement drives the tray along slide rail vertical migration, the tray drives the sample bottle at vertical migration, water sample and extractant in the sample bottle, the motion of upper and lower high strength, violent collision, and fully contact, the extract of aquatic can be extracted in the reagent, the reagent of the violent motion simultaneously can also fully collide with the bottle inner wall countless times, bottle inner wall sanitization, through the tray, a drive arrangement, the setting of sample bottle, replace artifical manual extraction, guarantee personnel are healthy, stabilize extraction efficiency, and realize the self-cleaning of sample bottle.

Preferably, the multi-path injection device further comprises a multi-path injection pump, the multi-path injection pump is connected with an air pipe and a multi-purpose pipe, the air pipe extends into the sample bottle in a sealing mode, the multi-purpose pipe is connected with a liquid pumping needle which extends to the bottom of the sample bottle in a sealing mode, and the multi-path injection pump is communicated with a reagent bottle containing an extracting agent through a liquid inlet pipe.

When the optimized scheme is used, the extraction agent in the reagent bottle is extracted from the reagent bottle through the liquid inlet pipe by the multi-way injection pump and is conveyed into the sample bottle through the multi-purpose pipe, the vent pipe is opened at the same time, the pressure balance is realized, and the extraction agent automatically enters the sample bottle through the arrangement of the multi-way injection pump, the vent pipe and the multi-purpose pump; through the arrangement of the liquid extraction needle, after extraction is finished, the extraction liquid is directly extracted by using a multi-path injection pump, and the problem that the extraction liquid needs to be separated by using a manual method in manual extraction and other automatic extraction methods is solved.

Preferably, the multi-way injection pump is also communicated with a waste liquid pipe and an extraction liquid pipe.

When the preferred scheme is used, the vent pipe is opened, the multi-path injection pump sucks the extraction liquid from the sample bottles into the extraction liquid pipe through the multi-purpose pipe, and therefore the collection of the extraction liquid in the plurality of sample bottles is facilitated; after the extraction liquid is collected and is accomplished, open the breather pipe, during the waste liquid pipe is inhaled with the waste liquid from the sample bottle through the multi-purpose pipe to multichannel syringe pump to the collection of the interior waste liquid of a plurality of sample bottles of being convenient for.

Preferably, the driving device comprises a motor, a fixing plate which is detachably connected with the tray and corresponds to the motor, a curved bar and a connecting rod which are hinged through a first hinge shaft, the fixing plate is located at the center of the bottom surface of the tray, a second hinge shaft is fixedly connected to the fixing plate, a second shaft hole which is connected with the second hinge shaft in a shaft mode is formed in the connecting rod, a third shaft hole of a fixed motor output shaft is formed in the curved bar, the axis of the third shaft hole, the axis of the second shaft hole, the axis of the first hinge shaft and the axis of the second hinge shaft are parallel, and the motor is located below the second hinge shaft.

This preferred scheme rotates through the motor and drives the curved bar and rotate around the motor shaft, and the curved bar drives the connecting rod and reciprocates, and the connecting rod drives fixed plate and tray and reciprocates to realize the up-and-down reciprocating motion of tray.

Preferably, the sliding rails are four, and the four sliding rails are located at four corners of the tray respectively. This preferred scheme is through the setting of four slide rails, gives the more stable guide effect when the tray removes.

Preferably, the bottom end of the inner cavity of the sample bottle is conical with the vertex positioned below. The preferred scheme can form a higher liquid level by the extraction agent with a small volume through the conical arrangement, thereby being beneficial to the separation of the extraction liquid.

Preferably, on the bottle body of the bottle cap thread sealing connection sample bottle of sample bottle, set up two first perforation that supply drawing needle and breather pipe to run through on the bottle cap, set up the second perforation that supplies sample bottle to run through on the tray, set up the recess with the second perforation coaxial line on the top surface of tray, the diameter of recess and the diameter adaptation of bottle cap, the rigid coupling has relative setting and follows the same radial first cassette and the second cassette that extend of bottle cap on the tray, and the one end rigid coupling that is close to the second cassette on the first cassette has the day word to buckle, and the winding of second cassette is buckled on the day word, has seted up two third perforations on the first cassette, and two third perforations set up with two first perforation coaxial lines respectively.

According to the preferred scheme, the bottle cap and the groove are arranged, so that the sample bottle can be conveniently clamped on the tray and can be conveniently taken out of the tray, and therefore, a water sample can be conveniently collected; through the arrangement of the clamping belt and the buckle, the sample bottle is convenient to fix, and meanwhile, the tightness of the clamping belt can be adjusted, so that the fixing strength of the sample bottle is adjusted.

Preferably, the multipurpose pipe and the air pipe are both flexible pipes. This preferred scheme makes multi-purpose pipe and breather pipe not influence the up-and-down motion of sample bottle when sample bottle up-and-down motion, is convenient for simultaneously prolong the life of multi-purpose pipe and breather pipe.

The utility model has the beneficial effects that: through the arrangement of the tray, the driving device and the sample bottle, manual extraction is replaced, the health of personnel is ensured, the extraction efficiency is stabilized, and the automatic cleaning of the sample bottle is realized; the automatic entering of the extracting agent into the sample bottle is realized through the arrangement of a multi-path injection pump, a vent pipe and a multi-purpose pump; the preferred scheme can form a higher liquid level by the extraction agent with a small volume through the conical arrangement, thereby being beneficial to the separation of the extraction liquid.

Drawings

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

FIG. 2 is a schematic view of a sample vial;

FIG. 3 is a schematic top view of the first strap;

shown in the figure:

1. sample bottle, 2, reagent bottle, 3, feed liquor pipe, 4, extract liquid pipe, 5, waste liquid pipe, 6, multichannel syringe pump, 7, multi-purpose pipe, 8, breather pipe, 9, drawing liquid needle, 10, tray, 11, recess, 12, slide rail, 13, connecting rod, 14, motor, 15, chassis, 16, curved bar, 17, fixed plate, 18, third perforation, 19, day word knot, 20, bottle lid, 21, first cassette, 22, second cassette.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

Referring to the attached drawings 1-3, the laboratory liquid-liquid automatic extraction device comprises a rectangular tray 10, the tray 10 is slidably connected to vertically extending slide rails 12, the number of the slide rails 12 is four, the four slide rails 12 are respectively positioned at four corners of the tray 10, the bottom ends of the slide rails 12 are fixedly connected to a chassis 15, and the chassis 15 is also provided with a driving device for driving the tray 10 to move up and down.

Drive arrangement includes motor 14, can dismantle with tray 10 and be connected and correspond the fixed plate 17 that sets up with motor 14, and through first articulated axle articulated knee lever 16 and connecting rod 13, fixed plate 17 is located the bottom surface central point of tray 10 and puts, and the rigid coupling has the second articulated shaft on the fixed plate 17, set up the second axle hole with second articulated shaft coupling on the connecting rod 13, set up 14 output shaft third shaft holes of fixed motor on the knee lever 16, the axis in third shaft hole, the axis in second shaft hole, the axis of first articulated shaft, the axis of second articulated shaft is parallel, motor 14 is located second articulated shaft below.

The axis in third shaft hole, the axis in second shaft hole, the axis of first articulated shaft, the axis of second articulated shaft are parallel, and motor 14 is located the second articulated shaft below.

Set up a plurality of vertical second that run through tray 10 on the tray 10 and perforate, set up on the top surface of tray 10 with the perforation coaxial line's of second recess 11, so the diameter of recess 11 is greater than the perforation diameter of second, the rigid coupling has relative setting and follows the same radial first cassette 21 and the second cassette 22 of extending of bottle lid 20 on the tray 10, the one end rigid coupling that is close to second cassette 22 on the first cassette 21 has the buckle 19 of style of calligraphy, the winding of second cassette 22 is on the buckle 19 of style of calligraphy, set up two third perforation 18 on the first cassette 21.

Placed sample bottle 1 on tray 10, sample bottle 1 includes bottle and bottle lid 20, screw thread sealing connection has the bottle below bottle lid 20, the diameter of bottle lid 20 and the diameter adaptation of recess 11, the degree of depth that highly is higher than recess 11 of bottle lid 20, the diameter of bottle and the fenestrate diameter adaptation of second, set up two first perforation that supply drawing liquid needle 9 and breather pipe 8 to run through on the bottle lid 20, two third perforation 18 set up with two first perforation coaxial lines respectively, bottle inner chamber bottom is the conical shape that the summit is located the below.

The multi-way injection device also comprises a multi-way injection pump 6, wherein the multi-way injection pump 6 is connected with a vent pipe 8 and a multi-purpose pipe 7, the vent pipe 8 penetrates through one first through hole in a sealing mode and extends into the sample bottle 1, the multi-purpose pipe 7 is connected with a liquid pumping needle 9 which penetrates through the other first through hole in a sealing mode and extends to the bottom of the reagent bottle 2, the multi-way injection pump 6 is communicated with the reagent bottle 2 containing an extracting agent through a liquid inlet pipe 3, the multi-purpose pipe 7 and the vent pipe 8 are both flexible pipes, and the multi-way injection pump 6 is further communicated with a waste liquid pipe 5 and an extracting liquid pipe 4.

When the water sample collecting device is used, a bottle body of the sample bottle 1 is used for collecting a water sample, a plurality of water samples are collected according to needs, the bottle cap 20 is screwed after the collection is finished, the water sample only has two thirds of the volume of the bottle, and no water sample flows out if the sample bottle 1 is not inclined;

then the sample bottle 1 is transported back to the laboratory, the bottle cap 20 is placed in the groove 11, the bottle cap 20 is fixed by a clamping band, the sample bottle 1 is prevented from loosening, and a plurality of sample bottles 1 are placed as required.

Inserting a liquid drawing needle 9 into the bottom of the sample bottle 1 through a first perforation on a bottle cap 20, but not into the bottommost part, and having a distance of two millimeters from the conical bottommost part, then hermetically connecting the liquid drawing needle 9 with a multipurpose tube 7, and hermetically inserting a vent pipe 8 into the bottle body, wherein the multipurpose tube 7 and the vent pipe 8 adopt a flexible polytetrafluoroethylene tube with the outer diameter of 1.5 millimeters, so that when the tray 10 moves up and down, pipelines cannot be influenced;

after the pipeline of each sample bottle 1 is connected, the multi-way injection pump 6 is started, the vent pipe 8 is opened, quantitative reagents are pumped into each sample bottle 1 respectively, after the reagents are conveyed, partial reagents can exist in the multi-purpose pipe 7, the liquid inlet pipe 3 is closed at the moment, the multi-way injection pump 6 pumps external air from the outside to enter the multi-purpose pipe 7, the reagents in the multi-purpose pipe 7 enter the sample bottles 1, then the communication of the external air of the multi-way injection pump 6 is stopped, the liquid inlet pipe 3 is opened, redundant air in the sample bottles 1 enters the reagent bottles 2 along the vent pipe 8, and finally the multi-way injection pump 6 is closed.

Then starting the motor 14 to rotate, driving the bent rod 16 to rotate around the shaft of the motor 14 through the rotation of the motor 14, driving the connecting rod 13 to move up and down by the bent rod 16, and driving the fixing plate 17 and the tray 10 to move up and down by the connecting rod 13, thereby realizing the up-and-down reciprocating movement of the tray 10; because the sample bottle 1 is filled with air, the liquid in the bottle can move up and down, and the reagent at the bottom and the water sample at the upper part can collide violently and contact fully; extracts in the water can be extracted into the reagent, and simultaneously, the reagent which moves violently can fully collide with the inner wall of the bottle for a plurality of times to clean the inner wall of the bottle;

after extraction is finished, the motor 14 is turned off, the tray 10 is stopped to move, the liquid in the sample bottle 1 is static and layered, the extraction liquid with higher density is static in the conical bottom of the sample bottle 1, and the waste water with lower density is on the upper part of the sample bottle 1;

after the solution is layered, starting the multi-way injection pump 6, opening the vent pipe 8, sequentially extracting the extract liquor in the conical grooves of the sample bottles 1, and sending the extract liquor into a volumetric flask or measuring equipment through the extract liquor pipe 4 for measurement;

after extraction of the extraction liquid is completed, the multi-path injection pump 6 is started, the vent pipe 8 is opened, waste liquid in the sample bottles 1 is extracted into the waste liquid barrel, the waste liquid in each sample bottle 1 can be extracted completely in sequence, and extraction and separation of the whole sample are completed.

In particular, all the extraction devices can be used for extraction, wherein the density of the solvent is less than that of the water sample.

Of course, the above description is not limited to the above examples, and the undescribed technical features of the present invention can be implemented by or using the prior art, and will not be described herein again; the above embodiments and drawings are only for illustrating the technical solutions of the present invention and not for limiting the present invention, and the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that changes, modifications, additions or substitutions within the spirit and scope of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and shall also fall within the scope of the claims of the present invention.

Claims (7)

1. Laboratory liquid-liquid automatic extraction device, its characterized in that: including tray (10) of placing a plurality of sample bottle (1), tray (10) sliding connection is on the slide rail of vertical extension, the below of tray (10) still is equipped with drive tray (10) gliding drive arrangement, still includes multichannel syringe pump (6), multichannel syringe pump (6) are connected with breather pipe (8) and multi-purpose pipe (7), breather pipe (8) are sealed to be extended to in sample bottle (1), multi-purpose pipe (7) are connected with sealed drawing liquid needle (9) that extend to sample bottle (1) bottle bottom, multichannel syringe pump (6) have reagent bottle (2) that hold the extractant through feed liquor pipe (3) intercommunication.

2. The laboratory liquid-liquid automatic extraction device according to claim 1, characterized in that: the multi-path injection pump (6) is also communicated with a waste liquid pipe (5) and an extraction liquid pipe (4).

3. The laboratory liquid-liquid automatic extraction device according to claim 1, characterized in that: drive arrangement includes motor (14), can dismantle with tray (10) and be connected and correspond fixed plate (17) that set up with motor (14), and through first articulated axle articulated knee lever (16) and connecting rod (13), fixed plate (17) are located the bottom surface central point of tray (10) and put, and the rigid coupling has the second articulated shaft on fixed plate (17), set up the second axle hole with second articulated shaft coupling on connecting rod (13), set up fixed motor (14) output shaft third shaft hole on knee lever (16), the axis in third shaft hole, the axis in second shaft hole, the axis of first articulated shaft, the axis of second articulated shaft is parallel, motor (14) are located second articulated shaft below.

4. The laboratory liquid-liquid automatic extraction device according to claim 1, characterized in that: the slide rail is equipped with four, and four slide rails are located four corners of tray (10) respectively.

5. The laboratory liquid-liquid automatic extraction device according to claim 1, characterized in that: the bottom end of the inner cavity of the sample bottle (1) is conical with the vertex positioned below.

6. The laboratory liquid-liquid automatic extraction device according to claim 1, characterized in that: the bottle cap (20) of the sample bottle (1) is in threaded sealing connection with the bottle body of the sample bottle (1), two first through holes for the liquid drawing needle (9) and the vent pipe (8) to penetrate through are formed in the bottle cap (20), a second through hole for the sample bottle (1) to penetrate through is formed in the tray (10), a groove coaxial with the second through hole is formed in the top surface of the tray (10), the diameter of the groove is matched with that of the bottle cap (20), the rigid coupling has relative setting and follows first cassette tape (21) and second cassette tape (22) of the same radial extension of bottle lid (20) on tray (10), and the one end rigid coupling that is close to second cassette tape (22) on first cassette tape (21) has a day word to detain (19), and second cassette tape (22) winding is on the word is detained (19), has seted up two third perforation (18) on first cassette tape (21), and two third perforation (18) set up with two first perforation coaxial lines respectively.

7. The laboratory liquid-liquid automatic extraction device according to claim 1, characterized in that: the multipurpose pipe (7) and the vent pipe (8) are both flexible pipes.

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