CN216986667U

CN216986667U - Full-automatic liquid sampling and filtering workstation

Info

Publication number: CN216986667U
Application number: CN202123160723.2U
Authority: CN
Inventors: 辛博; 陈春林; 赵佳宝
Original assignee: Nanjing Yunshang Chemical Technology Co ltd; Nanjing University
Current assignee: Nanjing Yunshang Chemical Technology Co ltd; Nanjing University
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-07-19
Anticipated expiration: 2031-12-15

Abstract

The utility model discloses a full-automatic liquid sampling and filtering workstation which comprises a rack, wherein two longitudinal beams are arranged on the rack, a cross beam is arranged between the two longitudinal beams, a first X-axis sliding block is connected to the cross beam in a sliding manner, and the first X-axis sliding block is connected with an X-direction driving mechanism; a first Z beam is arranged on the first X-axis sliding block, and a first Z-axis sliding block is connected to the first Z beam in a sliding manner; the first Z-axis sliding block is provided with a first Z seat, the first Z seat is provided with an installation frame for installing a needle tube, the first Z seat is connected with a liquid absorption sliding block in a sliding manner, the first Z seat is provided with a liquid absorption screw rod in the vertical direction, the liquid absorption screw rod is connected with a liquid absorption motor, and the liquid absorption sliding block is provided with a push-pull groove for installing a needle tube push rod; the lower part of the liquid-transfering gun on the frame is provided with a platform, and the platform is used for placing a chemical reagent bottle. The utility model can automatically filter the liquid generated in the chemical experiment process, liberate labor force in the process and improve the efficiency of the chemical experiment.

Description

Full-automatic liquid sampling and filtering workstation

Technical Field

The utility model relates to the technical field of experimental liquid filters, in particular to a full-automatic liquid sample introduction and filtration workstation.

Background

In the chemical experiment process, the experimental liquid product needs to be detected by using instruments such as a liquid chromatograph, and the liquid needs to be filtered manually by using a needle tube, a filter and the like before detection. The filtering process is complicated and monotonous, occupies a large amount of manpower, and influences the efficiency of chemical experiments.

SUMMERY OF THE UTILITY MODEL

The utility model provides a full-automatic liquid sample injection and filtration workstation, which has the advantages that the liquid generated in the chemical experiment process can be automatically filtered, the labor force in the process is liberated, and the efficiency of the chemical experiment is improved.

The utility model aims to realize the technical scheme that the full-automatic liquid sampling and filtering workstation comprises a rack, wherein two longitudinal beams which are parallel to each other are arranged on the rack, a cross beam which is vertical to the longitudinal beams is arranged between the two longitudinal beams, a first X-axis sliding block is connected onto the cross beam in a sliding manner, and the first X-axis sliding block is connected with an X-axis driving mechanism which is used for driving the X-axis sliding block to move on the cross beam;

the first Z-axis slider is connected with a first Z-axis slider which is connected with a first Z-axis driving mechanism for driving the first Z-axis slider to move up and down on the first Z beam;

the first Z-axis sliding block is provided with a first Z seat, the first Z seat is provided with an installation frame for installing a needle tube, the first Z seat is connected with a liquid absorption sliding block in a sliding manner, the first Z seat is provided with a liquid absorption screw rod in the vertical direction, the liquid absorption screw rod is connected with a liquid absorption motor for driving the liquid absorption screw rod to rotate, and the liquid absorption sliding block is provided with a push-pull groove for installing a needle tube push rod;

the lower part of the liquid-transfering gun on the frame is provided with a platform, and the platform is used for placing a chemical reagent bottle.

The X-axis driving mechanism is further arranged on the beam, and the second X-axis sliding block is connected to the beam in a sliding mode and driven by the X-direction driving mechanism to move synchronously with the first X-axis sliding block;

a second Z-axis slider is arranged on the second X-axis slider, and is connected with a second Z-axis slider in a sliding manner, and the second Z-axis slider is connected with a second Z-axis driving mechanism for driving the second Z-axis slider to move up and down on the first Z-axis;

and a second Z seat is arranged on the second Z-axis sliding block, a rubber plug frame is arranged on the second Z seat, and a sucking disc is arranged at the bottom of the rubber plug frame and connected with a negative pressure generator.

The X-direction driving mechanism further comprises a driving chain, the driving chain is supported by two chain wheels arranged on the cross beam, two ends of the driving chain are respectively connected to one side of the first X-axis sliding block, which is opposite to the second X-axis sliding block, the first X-axis sliding block and the second X-axis sliding block are connected through a middle chain, and one chain wheel is connected with an X-direction driving motor used for driving the chain wheel to rotate.

The first Z-direction driving mechanism comprises a Z-direction screw rod arranged on the first Z beam, the Z-direction screw rod is in threaded connection with the first Z-axis sliding block, and the Z-direction screw rod is connected with a Z-direction driving motor used for driving the first Z-direction screw rod to rotate;

the structure of the second Z-direction driving mechanism is the same as that of the first Z-direction driving mechanism.

The utility model is further arranged in such a way that a guide rod parallel to the cross beam is arranged on the rack, guide sleeves are arranged on the back surfaces of the first Z beam and the second Z beam, and the guide rod penetrates through the guide sleeves.

The utility model is further set that at least two Y-direction sliding rods are arranged at the bottom of the rack, the Y-direction sliding rods are parallel to the longitudinal beam, Y-direction sliding blocks are connected to the Y-direction sliding rods in a sliding mode, the platform is installed on the Y-direction sliding blocks, the platform is connected with a driving synchronous belt, the driving synchronous belt is connected through two belt wheels arranged on the rack, and one belt wheel is connected with a Y-direction driving motor.

The utility model is further arranged in that the mounting frame is provided with a mounting groove for mounting the needle tube, the shape of the mounting groove is matched with the appearance of the needle tube, the mounting frame is connected with a pressure ring for pressing the needle tube, and two ends of the pressure ring are connected with the mounting frame through buckles.

The utility model is further arranged in that a needle head bracket, a filter bracket and a rubber plug bracket are arranged on the platform, a plurality of needle heads used by the needle tubes are placed on the needle head bracket, a plurality of filters used by the needle tubes are placed on the filter bracket, and a rubber plug is placed on the rubber plug bracket;

the platform is also provided with a waste material box, a needle withdrawing bayonet is arranged above the waste material box, and the width of the needle withdrawing bayonet is equal to the diameter of the bottom interface of the needle tube;

the platform is also provided with a waste liquid box.

In summary, the utility model has the following beneficial effects:

1. according to the full-automatic liquid sample introduction and filtration workstation, a needle tube is arranged on an installation frame and can be controlled to move along the X direction and the Z direction, meanwhile, a push rod on the needle tube is arranged on a liquid suction slide block and is controlled to be pushed and pulled by a liquid suction motor, so that the operation of the needle tube is realized, the needle tube is connected with a needle head when liquid is sucked, and the needle tube is connected with a filter when the liquid is filtered, so that the full-automatic liquid sample introduction and filtration workstation can automatically realize the filtration operation of a chemical experiment reagent, liberate labor force in the process and is beneficial to improving the experiment efficiency;

2. according to the utility model, the sucker is arranged and can be controlled to move along the X direction and the Z direction, and after liquid is filtered, the sucker sucks the rubber plug to cover the chemical reagent bottle, so that the chemical reagent bottle is packaged without manual capping;

3. the utility model can realize automatic needle head or filter installation for the needle tube and automatic needle head or filter withdrawal on the needle tube, further improve the automation degree.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is a schematic diagram of a front view of an embodiment of the present invention;

FIG. 3 is a schematic view of the mounting of a syringe in an embodiment of the utility model;

FIG. 4 is a schematic view of the mounting of the suction cup in an embodiment of the present invention;

FIG. 5 is a schematic view of an embodiment of the present invention embodying a Y-direction slide position;

FIG. 6 is a bottom view of an embodiment of the present invention.

In the figure, 1, a frame; 2. a stringer; 3. a cross beam; 4. a first X-axis slide block; 5. a first Z-beam; 6. a first Z-axis slide block; 7. a mounting frame; 71. mounting grooves; 73. pressing a ring; 8. a liquid suction slide block; 81. a push-pull groove; 9. a liquid suction motor; 10. liquid suction screw rod; 11. a first Z seat; 12. a platform; 13. a sprocket; 14. an X-direction driving motor; 15. a first Z-direction screw rod; 16. a first Z-direction drive motor; 17. a Y-direction sliding rod; 18. a Y-direction sliding block; 19. a pulley; 20. a Y-direction driving motor; 21. a guide bar; 22. a guide sleeve; 23. a second X-axis slide block; 24. a second Z beam; 25. a second Z-axis slide block; 26. a rubber plug frame; 27. a suction cup; 28. a second Z seat.

Detailed Description

The following detailed description of embodiments of the utility model refers to the accompanying drawings.

It should be noted that the syringe, or syringe, in the present invention is a common liquid-taking container made of stainless steel or PP material, and has a port for connecting a needle or a filter, and a push rod for sucking or discharging liquid. The filter of the present invention is a filter used in cooperation with a needle tube, and is attached to the needle tube to filter a liquid discharged from the needle tube. In the utility model, the needle tube, the needle head and the filter are all in the prior art.

Example (b): referring to fig. 1-6, a full-automatic liquid sampling and filtering workstation comprises a frame 1, wherein two longitudinal beams 2 parallel to each other are arranged on the frame 1, a cross beam 3 perpendicular to the longitudinal beams 2 is arranged between the two longitudinal beams 2, a first X-axis slider 4 is connected to the cross beam 3 in a sliding manner, and the first X-axis slider 4 is connected with an X-direction driving mechanism for driving the X-axis slider to move on the cross beam 3. The beam 3 is also connected with a second X-axis slide block 23 in a sliding manner, and the second X-axis slide block 23 is driven by an X-direction driving mechanism and moves synchronously with the first X-axis slide block 4.

X includes drive chain to actuating mechanism, and drive chain supports through two sprocket 13 that set up on crossbeam 3, and drive chain's both ends are connected respectively in the relative one side of first X axle slider 4 and second X axle slider 23, and first X axle slider 4 and second X axle slider 23 are connected through middle chain, and one of them sprocket 13 is connected with and is used for drive sprocket 13 pivoted X to driving motor 14. When the X-direction driving motor 14 works, the chain wheel 13 drives the driving chain to rotate, and the driving chain drives the first X-axis sliding block 4 and the second X-axis sliding block 23 to slide along the cross beam 3. In the drawings, the specific location of the drive chain is not given, but does not affect the understanding of the overall scheme.

The first Z-axis slider is characterized in that a first Z-beam 5 is arranged on the first X-axis slider 4, a first Z-axis slider 6 is connected onto the first Z-beam 5 in a sliding manner, and the first Z-axis slider 6 is connected with a first Z-direction driving mechanism which is used for driving the first Z-axis slider 6 to move up and down on the first Z-beam 5. The first Z-direction driving mechanism comprises a Z-direction screw rod arranged on the first Z beam 5, the Z-direction screw rod is in threaded connection with the first Z-axis sliding block 6, and the Z-direction screw rod is connected with a Z-direction driving motor used for driving the first Z-direction screw rod 15 to rotate. When the Z-direction driving motor works, the first Z-direction screw rod 15 is driven to rotate, so that the first Z-axis sliding block 6 is driven to move up and down on the first Z beam 5.

Install first Z seat 11 on the first Z axle slider 6, be equipped with a mounting bracket 7 that is used for installing the needle tubing on the first Z seat 11, be equipped with the mounting groove 71 that is used for installing the needle tubing on the mounting bracket 7, the shape of mounting groove 71 matches with the appearance of needle tubing, is connected with clamping ring 73 on the mounting bracket 7 and is used for compressing tightly the needle tubing, is connected through the buckle between the both ends of clamping ring 73 and the mounting bracket 7. The needle tube is mounted on the mounting rack 7 and can move along with the first Z-axis slide block 6.

The liquid suction sliding block 8 is connected to the first Z seat 11 in a sliding mode, the liquid suction sliding block 8 is located above the mounting frame 7, the liquid suction screw rod 10 in the vertical direction is arranged on the first Z seat 11, the liquid suction screw rod 10 is connected with a liquid suction motor 9 used for driving the liquid suction screw rod 10 to rotate, and a push-pull groove 81 used for mounting a needle tube push rod is formed in the liquid suction sliding block 8. When the liquid suction motor 9 works, the liquid suction screw rod 10 drives the liquid suction sliding block 8 to slide up and down on the first Z seat 11, and then the push rod of the needle tube is driven to move up and down, so that the needle tube is operated.

And a second Z-axis slider 24 is arranged on the second X-axis slider 23, a second Z-axis slider 25 is connected onto the second Z-axis slider 24 in a sliding manner, and the second Z-axis slider 25 is connected with a second Z-axis driving mechanism for driving the second Z-axis slider 25 to move up and down on the first Z-axis beam 5. The structure of the second Z-direction driving mechanism is the same as that of the first Z-direction driving mechanism, and is not described again.

And a second Z seat 28 is arranged on the second Z-axis sliding block 25, a rubber plug frame 26 is arranged on the second Z seat 28, and a sucking disc 27 is arranged at the bottom of the rubber plug frame 26 and connected with a negative pressure generator. The plug rack 26 and suction cups 27 follow the second Z-axis slide 25.

In order to increase the rigidity of the Z-beam and reduce the vibration of the Z-beam, a guide rod 21 parallel to the cross beam 3 is arranged on the frame 1, guide sleeves 22 are arranged on the back surfaces of the first Z-beam 5 and the second Z-beam 24, and the guide rod 21 penetrates through the guide sleeves 22. The guide rods 21 and the guide sleeves 22 support and guide the movement of the first Z-beam 5 and the second Z-beam 24, and the movement rigidity of the Z-beams is improved.

A platform 12 is arranged below the liquid-transferring gun on the frame 1, and a chemical reagent bottle is arranged on the platform 12. Two less Y are to slide bar 17 in frame 1, Y to slide bar 17 with longeron 2 is parallel, Y has Y to slide bar 17 go up sliding connection to slide block 18, platform 12 is installed on Y is to slide block 18, platform 12 is connected with the drive hold-in range, and the bolt fastening is passed through in the bottom of platform 12 in the both ends of hold-in range, the drive hold-in range is connected through two band pulleys 19 that set up in frame 1, is connected with Y on one of them band pulley 19 to driving motor 20. After the Y-direction driving motor 20 works, the platform 12 is driven by the driving timing belt to slide along the Y-direction sliding rod 17, and in the drawing, the specific position of the driving timing belt is not shown, but the understanding of the whole scheme is not affected.

Be equipped with syringe needle support, filter support and rubber buffer support on the platform 12, be used for placing a plurality of syringe needles that supply the needle tubing to use on the syringe needle support, be used for placing a plurality of filters that supply the needle tubing to use on the filter support, be used for placing the rubber buffer on the rubber buffer support.

The platform 12 is also provided with a waste material box, a needle head withdrawing bayonet is arranged above the waste material box, the width of the needle head withdrawing bayonet is equal to the diameter of the bottom interface of the needle tube, the needle head withdrawing bayonet is horizontally arranged, an opening is arranged on one side of the needle head withdrawing bayonet, and the opening is in a horn shape. The waste material box is used for recycling the used needle head or filter, when the needle head or filter on the needle tube needs to be withdrawn, the interface of the needle head only needs to be moved into the needle head withdrawing bayonet from the transverse direction, then the needle tube is controlled to move upwards, and the maximum diameter of the needle head and the filter is larger than the diameter of the interface of the needle tube, so that the needle head or the filter on the needle tube can be blocked by the needle head withdrawing bayonet and withdrawn and fall into the waste material box.

The platform 12 is also provided with a waste box for receiving waste liquid that is not useful in the chemical reagents.

The following is a brief description of the working flow of the fully automatic liquid injection filtering workstation of the present invention with liquid filtering in a typical chemical experiment:

on the platform 12 are placed a liquid reagent bottle to be filtered, a diluent reagent bottle, a mixed diluted reagent bottle and a filtered liquid reagent bottle. The liquid reagent bottle to be filtered is used for containing liquid to be filtered; the diluent reagent bottle is used for containing diluent, and the diluent is used for diluting the liquid to be filtered so as to enable the liquid to be filtered to meet the filtering standard; the mixing and diluting reagent bottle is used for containing a diluent and liquid to be filtered; the filtered liquid reagent bottle is used for containing the diluted liquid. The positions of the four reagent bottles are all input into a control system.

During the dilution operation, with the syringe needle of needle tubing connection, the syringe needle removes to the top of filtering liquid reagent bottle, and the syringe needle downstream makes the syringe needle remove to below the liquid level, and the action of imbibition motor 9 makes the syringe needle absorb a quantitative liquid, and the syringe needle lifts up afterwards and shifts to the top of mixing dilution reagent bottle, and the syringe needle downstream makes the syringe needle get into and mixes dilution reagent bottle, and the action of imbibition motor 9 is discharged liquid. Then the liquid in the diluent reagent bottle is also partially transferred to the mixed diluent reagent bottle, and the repetition times of the steps can be flexibly set according to the difference of the liquid quantity.

During filtering operation, connect the syringe needle with the needle tubing, the needle tubing removes the top to mixing dilution reagent bottle, the needle tubing moves down makes the syringe needle move to below the liquid level, imbibition motor 9 action makes the needle tubing absorb a certain amount of liquid, the needle tubing lifts up and shifts to waste material box department and moves back the syringe needle afterwards, the needle tubing moves to the top of filter holder afterwards, the needle tubing moves the automatic installation filter downwards, after having installed the filter, the needle tubing moves to the top of filtering back liquid reagent bottle, the needle tubing moves down makes the liquid outlet entering of filter back liquid reagent bottle, imbibition motor 9 base discharges liquid, the filtering work to liquid has been accomplished.

After the liquid is processed, the suction cup 27 moves to the upper part of the rubber plug support, and the negative pressure generator works to suck one rubber plug and seal the reagent bottle.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. The full-automatic liquid sampling and filtering workstation is characterized by comprising a rack (1), wherein two longitudinal beams (2) which are parallel to each other are arranged on the rack (1), a cross beam (3) which is perpendicular to the longitudinal beams (2) is arranged between the two longitudinal beams (2), a first X-axis sliding block (4) is connected onto the cross beam (3) in a sliding manner, and the first X-axis sliding block (4) is connected with an X-direction driving mechanism which is used for driving the X-axis sliding block to move on the cross beam (3);

a first Z-axis slider (5) is arranged on the first X-axis slider (4), a first Z-axis slider (6) is connected onto the first Z-axis slider (5) in a sliding manner, and the first Z-axis slider (6) is connected with a first Z-axis driving mechanism for driving the first Z-axis slider (6) to move up and down on the first Z-axis slider (5);

a first Z seat (11) is mounted on the first Z-axis sliding block (6), a mounting frame (7) for mounting a needle tube is arranged on the first Z seat (11), a liquid suction sliding block (8) is connected to the first Z seat (11) in a sliding mode, a liquid suction lead screw (10) in the vertical direction is arranged on the first Z seat (11), the liquid suction lead screw (10) is connected with a liquid suction motor (9) for driving the liquid suction lead screw (10) to rotate, and a push-pull groove (81) for mounting a needle tube push rod is formed in the liquid suction sliding block (8);

a platform (12) is arranged below the liquid-transferring gun on the frame (1), and a chemical reagent bottle is placed on the platform (12);

the beam (3) is also connected with a second X-axis sliding block (23) in a sliding manner, and the second X-axis sliding block (23) is driven by the X-direction driving mechanism and moves synchronously with the first X-axis sliding block (4);

a second Z-axis slider (24) is arranged on the second X-axis slider (23), a second Z-axis slider (25) is connected onto the second Z-axis slider (24) in a sliding manner, and the second Z-axis slider (25) is connected with a second Z-axis driving mechanism for driving the second Z-axis slider (25) to move up and down on the first Z-axis beam (5);

a second Z seat (28) is installed on the second Z-axis sliding block (25), a rubber plug frame (26) is installed on the second Z seat (28), a sucking disc (27) is installed at the bottom of the rubber plug frame (26), and the sucking disc (27) is connected with a negative pressure generator.

2. The full-automatic liquid sampling and filtering workstation according to claim 1, wherein the X-direction driving mechanism comprises a driving chain, the driving chain is supported by two chain wheels (13) arranged on the cross beam (3), two ends of the driving chain are respectively connected to one side of the first X-axis sliding block (4) opposite to the second X-axis sliding block (23), the first X-axis sliding block (4) is connected with the second X-axis sliding block (23) through an intermediate chain, and one chain wheel (13) is connected with an X-direction driving motor (14) for driving the chain wheel (13) to rotate.

3. The full-automatic liquid sampling and filtering workstation according to claim 2, wherein the first Z-direction driving mechanism comprises a Z-direction lead screw arranged on the first Z beam (5), the Z-direction lead screw is in threaded connection with the first Z-axis slide block (6), and the Z-direction lead screw is connected with a Z-direction driving motor for driving the first Z-direction lead screw (15) to rotate;

4. The full-automatic liquid sampling and filtering workstation according to claim 3, characterized in that a guide rod (21) parallel to the cross beam (3) is arranged on the frame (1), guide sleeves (22) are arranged on the back surfaces of the first Z beam (5) and the second Z beam (24), and the guide rod (21) penetrates through the guide sleeves (22).

5. The full-automatic liquid sampling and filtering workstation according to claim 4, wherein at least two Y-direction sliding rods (17) are arranged at the bottom of the rack (1), the Y-direction sliding rods (17) are parallel to the longitudinal beam (2), Y-direction sliding blocks (18) are connected onto the Y-direction sliding rods (17) in a sliding manner, the platform (12) is mounted on the Y-direction sliding blocks (18), a driving synchronous belt is connected onto the platform (12), the driving synchronous belt is connected through two belt wheels (19) arranged on the rack (1), and a Y-direction driving motor (20) is connected onto one belt wheel (19).

6. The full-automatic liquid sampling and filtering workstation according to claim 5, wherein a mounting groove (71) for mounting the needle tube is formed in the mounting frame (7), the shape of the mounting groove (71) is matched with the shape of the needle tube, a pressing ring (73) is connected to the mounting frame (7) and used for pressing the needle tube, and two ends of the pressing ring (73) are connected with the mounting frame (7) through buckles.

7. The full-automatic liquid sampling and filtering workstation according to claim 6, wherein the platform (12) is provided with a needle head bracket, a filter bracket and a rubber plug bracket, the needle head bracket is used for placing a plurality of needle heads for the needle tubes, the filter bracket is used for placing a plurality of filters for the needle tubes, and the rubber plug bracket is used for placing a rubber plug;

a waste material box is further arranged on the platform (12), a needle withdrawing bayonet is arranged above the waste material box, and the width of the needle withdrawing bayonet is equal to the diameter of the bottom interface of the needle tube;

and a waste liquid box is also arranged on the platform (12).