CN214277532U - Solution extraction device and liquid chromatograph with same - Google Patents

Abstract

The utility model discloses an extraction element of solution to a liquid chromatograph with extraction element of solution is disclosed, extraction element of one of them solution includes base, runing rest, lifting unit and gets the liquid subassembly. The rotary bracket is rotatably arranged on the base through a rotating shaft and is provided with a plurality of fixing holes for placing test tubes; the lifting assembly is arranged on the base and positioned on one side of the rotating support, and comprises a sliding rail and a sliding block arranged on the sliding rail in a sliding manner; get liquid subassembly and include straw and hose, hose one end sets up on the slider, and the first end setting of straw is at the slider lower extreme and with the hose intercommunication. Because runing rest can rotate round rotation center, so, the extraction element of a solution can be quick send different solution to a liquid chromatograph and carry out liquid phase analysis for a liquid chromatograph analysis efficiency promotes greatly, in the time of lifting efficiency, can also reduce a liquid chromatograph's equipment volume.

Description

Solution extraction device and liquid chromatograph with same

Technical Field

The utility model relates to a chromatograph, in particular to extraction element of solution and have its liquid chromatograph.

Background

The chromatographic analysis method is a separation and analysis method, and has a wide application in the fields of analytical chemistry, organic chemistry, biochemistry, and the like, wherein the chromatographic analysis method is classified into gas chromatography, liquid chromatography, gas-solid chromatography, gas-liquid chromatography, liquid-solid chromatography, and liquid-liquid chromatography according to the state of two phases, i.e., a mobile phase and a stationary phase, during the chromatographic analysis, the liquid chromatography is generally used for analysis, and the analytical instrument used is a liquid chromatograph.

Liquid chromatograph will wait to detect liquid that detects usually in the use through the stock solution bottled good then put the stock solution bottle reuse pipeline switch-on stock solution bottle and detection device in the liquid reserve tank, so can only detect one kind and wait to detect liquid, detect comparatively singlely, if need detect multiple solution simultaneously, then need be provided with a plurality of stock solution bottles, cause the volume of liquid chromatograph equipment great, comparatively heavy. In view of the above, there is a need for a liquid chromatograph to overcome the deficiencies of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an extraction element of solution can absorb the different liquid that waits to detect simultaneously, does not increase the volume of liquid chromatograph equipment, not only makes things convenient for liquid chromatograph to carry, can also improve the efficiency of analysis.

The utility model discloses still provide a liquid chromatograph who has the extraction element of above-mentioned solution.

According to the utility model discloses an extraction element of solution of first aspect embodiment, an extraction element of solution includes base, runing rest, lifting unit spare and gets the liquid subassembly. The rotary bracket is rotatably arranged on the base through a rotating shaft and is provided with a plurality of fixing holes for placing test tubes; the lifting assembly is arranged on the base and positioned on one side of the rotating support, and comprises a sliding rail and a sliding block arranged on the sliding rail in a sliding manner; get liquid subassembly and include straw and hose, hose one end sets up on the slider, the first end setting of straw is in the slider lower extreme and with the hose intercommunication.

According to the utility model discloses extraction element of solution has following beneficial effect at least: the rotating bracket is rotatably arranged on the base through the rotating shaft, the lifting assembly is also arranged on the base, and the lifting assembly is positioned on one side of the rotating bracket; a plurality of on the runing rest the fixed orifices can be used to place the dress and get the test tube of solution, lifting unit is steerable promptly get in the straw in the liquid subassembly stretches into the solution of test tube, can be in order to realize the extraction to the solution that awaits measuring. Because the runing rest can rotate around the rotation center, so, when having drawed the solution that awaits measuring in the test tube, lifting unit will the straw upwards is mentioned, then runing rest rotates next test tube to the position of drawing through the rotation, lifting unit will again the straw descends in the solution in the straw, can extract another kind of solution that awaits measuring. The whole solution extraction device has the advantages of simple structure, uncomplicated working principle and simple operation, thereby improving the solution extraction efficiency of the device.

According to the utility model discloses a some embodiments, the runing rest includes carousel and lower carousel, the fixed orifices includes first test tube hole and second test tube hole, it passes through the bracing piece to be fixed to go up the carousel the top of carousel down, it is a plurality of first test tube hole is seted up circumferentially go up the carousel on, it is a plurality of second test tube hole is seted up circumferentially on the carousel down, the position of second test tube hole with the position one-to-one of first test tube hole.

According to some embodiments of the present invention, the lifting assembly further comprises a protective housing and a guide block, the slide rail being disposed in the protective housing; the guide block sets up on the protecting sheathing and be located the slider below, the through-hole has been seted up on the guide block, the shape size of through-hole with straw looks adaptation, the second end of straw movably wears to establish on the through-hole, the second end can stretch into in the test tube.

According to the utility model discloses a some embodiments, first end is provided with the external screw thread, the hose with the one end that first end is connected is provided with the internal thread, the hose pass through threaded connection's mode with first end intercommunication, the hose with the one end that first end is connected is provided with the piece of screwing, be provided with anti-skidding line on the piece of screwing.

According to some embodiments of the invention, the hose is connected to a vacuum pump.

According to some embodiments of the invention, the solution extraction device further comprises a first drive member, the output of which is connected to the rotation shaft.

According to some embodiments of the utility model, the lifting unit still includes second drive disk assembly, second drive disk assembly with the lifting unit connects, the slide rail is the screw rod, the slider be provided with the screw rod cooperatees the screw thread through-hole of connecting.

According to some embodiments of the invention, the second test tube hole is smaller than the first test tube hole, or the second test tube hole is a blind hole.

According to some embodiments of the present invention, the vacuum pump further comprises a control key, wherein the control key is electrically connected with the vacuum pump, the first driving part and the second driving part respectively.

A liquid chromatograph according to a second aspect of the present invention includes a solution extraction device as in any of the embodiments of the first aspect.

According to the utility model discloses liquid chromatograph has following beneficial effect at least: the liquid chromatograph has the function of detecting a plurality of different solutions simultaneously, the extraction device of one solution is connected with the liquid chromatograph, the extraction device of one solution can provide different solutions to be detected for the liquid chromatograph, and finally the liquid chromatograph can perform liquid chromatographic analysis on the solutions to be detected. The efficient extraction element of a solution can draw solution fast and to a liquid chromatograph provides various liquid of waiting to detect for a liquid chromatograph, makes a liquid chromatograph analysis efficiency promote greatly, when promoting efficiency, can also reduce a liquid chromatograph's equipment volume.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a solution extraction device according to an embodiment of the present invention;

fig. 2 is a schematic view of a lifting assembly of the solution extraction device shown in fig. 1.

Reference numerals:

a test tube 1;

the test tube rack comprises a rotating bracket 100, an upper rotary table 110, a lower rotary table 120, a fixing hole 130, a first test tube hole 131, a second test tube hole 132, a supporting rod 140 and a rotating shaft 150;

the lifting assembly 200, the sliding block 210, the sliding rail 220, the guide block 230, the through hole 231 and the protective shell 240;

the liquid taking assembly 300, a suction pipe 310, a first end 311, a second end 312, a hose 320 and a screwing block 321;

a second driving part 400;

control key 500, base 600.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

The utility model discloses an embodiment of first aspect:

referring to fig. 1, a first embodiment of the present invention provides a solution extraction apparatus, which includes a base 600, a rotating bracket 100, a lifting assembly 200, and a liquid extraction assembly 300. The rotary bracket 100 of the extraction device is rotatably arranged on the base 600 through a rotating shaft 150, and the rotary bracket 100 is provided with a plurality of fixing holes 130 for placing the test tubes 1; the lifting assembly 200 is arranged on the base 600 and positioned at one side of the rotating bracket 100, and the lifting assembly 200 comprises a sliding rail 220 and a sliding block 210 arranged on the sliding rail 220 in a sliding manner; the liquid taking assembly 300 comprises a suction pipe 310 and a hose 320, wherein one end of the hose 320 is arranged on the slider 210, and a first end 311 of the suction pipe 310 is arranged at the lower end of the slider 210 and is communicated with the hose 320.

The rotating bracket 100 is rotatably arranged on the base 600 through the rotating shaft 150, the lifting assembly 200 is further arranged on the base 600, and the lifting assembly 200 is positioned at one side of the rotating bracket 100; a plurality of fixed orificess 130 on the runing rest 100 can be used to place the test tube 1 of dress solution of getting, and lifting unit 200 can control and get the straw 310 in the liquid subassembly 300 and stretch into in the solution of test tube 1, can realize the extraction to the solution that awaits measuring. Since the rotating bracket 100 can rotate around the rotation center, when the solution to be tested in one test tube 1 is extracted, the lifting assembly 200 lifts the suction tube 310 upwards, then the rotating bracket 100 rotates the next test tube 1 to the extraction position by rotation, and the lifting assembly 200 lowers the suction tube 310 into the solution in the suction tube 310, so as to extract another solution to be tested. The whole solution extraction device has the advantages of simple structure, uncomplicated working principle and simple operation, thereby improving the solution extraction efficiency of the device.

In some embodiments of the present invention, a rotary rack 100 in a solution extraction device includes an upper rotary plate 110 and a lower rotary plate 120, a fixing hole 130 includes a first test tube hole 131 and a second test tube hole 132, the upper rotary plate 110 is fixed above the lower rotary plate 120 through a support rod 140, a plurality of first test tube holes 131 are circumferentially provided on the upper rotary plate 110, a plurality of second test tube holes 132 are circumferentially provided on the lower rotary plate 120, and the positions of the second test tube holes 132 correspond to the positions of the first test tube holes 131 one to one. A rotating shaft 150 is connected to the center of the lower turntable 120, i.e., the rotating center of the rotating bracket 100, the rotating shaft 150 can drive the lower turntable 120 to rotate, and the lower turntable 120 is connected to the upper turntable 110 through the support frame to rotate synchronously. The fixing hole 130 of the rotary bracket 100 is used for fixing and placing the test tube 1 containing the solution to be tested, so that the test tube 1 can synchronously rotate along with the rotation of the rotary bracket 100 under the fixing action of the fixing hole 130. It should be noted that the positions of the first test tube holes 131 and the second test tube holes 132 are corresponding to each other one by one to ensure that the test tubes 1 can be vertically placed, so that the pipette 310 can conveniently suck the solution to be tested.

Referring to fig. 1 and 2, in some embodiments of the present invention, the lifting assembly 200 further includes a protective housing 240 and a guide block 230, the slide rail 220 being disposed in the protective housing 240; the guide block 230 is disposed in the protective housing 240 and located below the slider 210, a through hole 231 is formed in the guide block 230, the shape and size of the through hole 231 are matched with the pipette 310, the second end 312 of the pipette 310 is movably disposed through the through hole 231, and the second end 312 can extend into the test tube 1. It can be understood that, since the test tube 1 has a long cylindrical shape, the straw 310 used in cooperation is a long and thin straw 310, and the straw 310 inevitably shakes during the up-and-down movement of the straw 310 in the test tube 1. The second end 312 of the suction pipe 310 is inserted through the pipe hole on the guide block 230, so that the suction pipe 310 can be fixed in the pipe hole, and the second end 312 is prevented from shaking too strongly; but also can slide in the hole of the test tube 1, so that the second end 312 can move up and down in the test tube 1 conveniently to suck the solution.

In some embodiments of the present invention, the first end 311 of the straw 310 is provided with an external thread, the end of the hose 320 connected to the first end 311 of the straw 310 is provided with an internal thread, the hose 320 is connected to the first end 311 of the straw 310 by a threaded connection, the end of the hose 320 connected to the first end 311 of the straw 310 is provided with a screwing block 321, and the screwing block 321 is provided with an anti-slip pattern. It can be understood that the diameter of the hose 320 is small, and the outer wall of the hose 320 is smooth, and in order to ensure a good sealing effect, the connection between the suction pipe 310 and the hose 320 is a threaded connection, so it is conceivable that the end of the hose 320 connected to the suction pipe 310 is made of a metal material. When the hose 320 and the suction pipe 310 are connected by the internal thread and the external thread, the outer wall of the relatively smooth hose 320 is not suitable for being screwed, and liquid leakage may occur, so that the anti-skid block 210 is fixedly arranged at one end of the hose 320, and the anti-skid block 210 is provided with strip-shaped anti-skid lines. The anti-slip block 210 is disposed at one end of the metal of the hose 320, and the anti-slip threads facilitate tightening of the threaded connection structure, thereby ensuring air tightness of the threaded connection between the hose 320 and the suction pipe 310.

In some embodiments of the present invention, the hose 320 is further connected to a vacuum pump (not shown). The vacuum pump provides the suction force for sucking the solution for the suction tube 310, and the solution to be detected in the test tube 1 is sucked into the detection device for detection. The solution extraction device further includes a first driving member (not shown), an output end of the first driving member is connected to the rotating shaft 150, and the rotating shaft 150 is driven by the first driving member to rotate, so as to drive the rotating bracket 100 to rotate. The lifting assembly 200 further comprises a second driving member 400, the second driving member 400 is connected to the lifting assembly 200, and the driving slider 210 moves up and down along the slide rail 220.

Take a specific solution-sucking flow as an example: when a solution needs to be sucked for detection, the second driving component 400 drives the sliding block 210 to move downwards along the sliding rail 220, the sliding block 210 carries the first end 311 of the suction pipe 310 to move downwards, so that the second end 312 of the suction pipe 310 extends into the solution to be detected in the test tube 1 through the pipe hole on the guide block 230, the vacuum pump is started to provide suction force for the suction pipe 310 to suck the solution to be detected into the suction pipe 310, and the solution passes through the hose 320 and reaches the detection equipment. After enough waiting to detect solution is sucked, second drive unit 400 can drive slider 210 along slide rail 220 rebound, it can to move to break away from out test tube 1 mouth with the second end 312 of straw 310, at this moment, first drive unit will drive the rotation axis 150 rotation on the output end, rotation axis 150 can drive runing rest 100 and carry out synchronous revolution, when runing rest 100 rotates the test tube mouth of next test tube 1 to the below of the second end 312 of straw 310, first drive unit stops the drive, second drive unit 400 can be with drive slider 210 along slide rail 220 rebound, carry out the work of sucking of next solution. The circulation is repeated, so that different solutions to be detected can be absorbed and detected, and the efficiency of detecting the solutions to be detected is higher.

It should be noted that when the second driving part 400 drives the sliding block 210 to move upwards along the sliding rail 220, the second end 312 of the pipette 310 should be separated from the test tube port, i.e. higher than the height of the test tube port, but cannot be separated from and higher than the guide block 230, so as to avoid the situation that the pipette 310 cannot pass through the tube hole on the guide block 230 when descending.

In some embodiments of the present invention, the second test tube hole 132 is smaller than the first test tube hole 131, or the second test tube hole 132 is a blind hole. It will be appreciated that for better secure mounting of the cuvette 1, the aperture of the second cuvette hole 132 may be smaller than the aperture of the first cuvette hole 131, and the aperture of the first cuvette hole 131 may be adapted to the aperture of the cuvette 1; the second test tube hole 132 may also be a blind hole, and the upper surface of the blind hole may be used to support the bottom of the test tube 1, but it should be noted that the aperture of the first test tube hole 131 is also adapted to the aperture of the test tube 1.

In some embodiments of the present invention, the solution extraction device further comprises a control key 500, wherein the control key 500 is electrically connected to the vacuum pump, the first driving part and the second driving part 400 respectively. The control key 500 is disposed on the surface of the solution extraction device, and is electrically connected to the vacuum pump, the first driving part, and the second driving part 400, respectively, so that when one of the functions is required, the key operation can be performed through the control key 500.

The utility model discloses embodiment of second aspect:

a liquid chromatograph according to a second aspect of the present invention includes a solution extraction device as provided in any one of the embodiments of the first aspect of the present invention.

A liquid chromatograph (not shown in the figure) has the function of detecting a plurality of different solutions simultaneously, an extraction device of one solution is connected with the liquid chromatograph, the extraction device of one solution can provide different solutions to be detected for one liquid chromatograph, and finally one liquid chromatograph can carry out liquid chromatographic analysis on the solutions to be detected. The extraction element of an efficient solution can draw solution fast and provide various liquid of waiting to detect to a liquid chromatograph for a liquid chromatograph analysis efficiency promotes greatly, in the time of promoting efficiency, can also reduce a liquid chromatograph's equipment volume.

The present embodiment has been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims (10)

1. An apparatus for extracting a solution, comprising:

a base (600);

the test tube rack comprises a rotating bracket (100), wherein the rotating bracket (100) is rotatably arranged on a base (600) through a rotating shaft (150), and the rotating bracket (100) is provided with a plurality of fixing holes (130) for placing test tubes (1);

the lifting assembly (200) is arranged on the base (600) and positioned on one side of the rotating bracket (100), and the lifting assembly (200) comprises a sliding rail (220) and a sliding block (210) arranged on the sliding rail (220) in a sliding manner;

the liquid taking assembly (300) comprises a suction pipe (310) and a hose (320), one end of the hose (320) is arranged on the sliding block (210), and a first end (311) of the suction pipe (310) is arranged at the lower end of the sliding block (210) and is communicated with the hose (320).

2. The solution extraction device according to claim 1, wherein the rotating bracket (100) comprises an upper rotating disk (110) and a lower rotating disk (120), the fixing hole (130) comprises a first test tube hole (131) and a second test tube hole (132), the upper rotating disk (110) is fixed above the lower rotating disk (120) through a support rod (140), a plurality of first test tube holes (131) are circumferentially arranged on the upper rotating disk (110), a plurality of second test tube holes (132) are circumferentially arranged on the lower rotating disk (120), and the positions of the second test tube holes (132) correspond to the positions of the first test tube holes (131) one by one.

3. A solution extraction device as claimed in claim 1, characterized in that said lifting assembly (200) further comprises:

a protective housing (240), the slide rail (220) being disposed in the protective housing (240);

the guide block (230), the guide block (230) set up on protective housing (240) and be located slider (210) below, through-hole (231) have been seted up on guide block (230), the shape size of through-hole (231) with straw (310) looks adaptation, the activity of second end (312) of straw (310) is worn to establish on through-hole (231), second end (312) can stretch into in test tube (1).

4. The extraction device for a solution according to claim 1, wherein the first end (311) is provided with an external thread, the end of the hose (320) connected to the first end (311) is provided with an internal thread, the hose (320) is communicated with the first end (311) in a threaded manner, the end of the hose (320) connected to the first end (311) is provided with a tightening block (321), and the tightening block (321) is provided with an anti-slip thread.

5. A solution extraction device according to claim 1, wherein said hose (320) is connected to a vacuum pump.

6. A solution extraction device according to claim 1, further comprising a first drive member, an output of said first drive member being connected to said rotatable shaft (150).

7. The extraction device of a solution according to claim 6, further comprising a second driving member (400), wherein the second driving member (400) is connected to the lifting assembly (200), the slide rail (220) is a screw, and the slide block (210) is provided with a threaded through hole for matching and connecting with the screw.

8. A solution extraction device according to claim 2, wherein said second test tube aperture (132) is smaller than said first test tube aperture (131), or said second test tube aperture (132) is blind.

9. The extraction apparatus for a solution according to claim 7, further comprising a control key (500) and a vacuum pump connected to the hose (320), wherein the control key (500) is electrically connected to the vacuum pump, the first driving member and the second driving member (400), respectively.

10. A liquid chromatograph comprising a solution extraction device according to any one of claims 1 to 9.

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