CN212060103U

CN212060103U - Automatic sampling device of liquid chromatograph

Info

Publication number: CN212060103U
Application number: CN202020019777.3U
Authority: CN
Inventors: 陈利; 崔强; 刘红娜
Original assignee: Tianjin Nankai Hecheng Science & Technology Co ltd
Current assignee: Tianjin Nankai Hecheng Science & Technology Co ltd
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2020-12-01
Anticipated expiration: 2030-01-06

Abstract

The utility model relates to a liquid chromatograph sampling device technical field just discloses an automatic sampling device of liquid chromatograph, comprising a base plate, the top fixedly connected with box of bottom plate, the fixed intercommunication of right flank of box has the tuber pipe, the top surface fixedly connected with air-blower of bottom plate, the air outlet of air-blower and the fixed intercommunication of the lower extreme of tuber pipe, the top surface fixedly connected with of bottom plate is located the left supporting legs of box, the top fixedly connected with liquid tank of supporting legs. This automatic sampling device of liquid chromatograph through addding the box at the top of bottom plate, has set up a fixed plate and No. two fixed plates in the box, and a fixed plate forms the cavity between No. two fixed plates to utilize the air-blower to blow into the cavity with wind, push away to the pressure liquid board and overcome spring force extrusion liquid level, extrude liquid into the drain pipe and take a sample, replace the people by the air-blower and take a sample, improved sample rate, it is convenient to reduce the use of human labor.

Description

Automatic sampling device of liquid chromatograph

Technical Field

The utility model relates to a liquid chromatograph sampling device art field specifically is an automatic sampling device of liquid chromatograph.

Background

The liquid chromatograph is divided into liquid-liquid chromatography (LLC) and liquid-solid chromatography (LSC) according to whether the stationary phase is liquid or solid, and the modern liquid chromatograph consists of a high-pressure infusion pump, a sample injection system, a temperature control system, a chromatographic column, a detector, a signal recording system and the like.

Current liquid chromatograph is mostly manual sample when using, and the sampling process is loaded down with trivial details, and it is big to consume labour strength among the experimental operation process, and sampling speed is slow, has reduced the efficiency of experiment, and manual sample liquid takes place the liquid phase easily and spills, influences experiment work.

In addition, when the existing liquid chromatograph is used for liquid phase sampling, sampling is carried out only by manpower, the equal sampling amount cannot be ensured, the sampling liquid phase effect is poor in multiple comparison tests, the test effect is reduced, and test errors exist.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides an automatic sampling device of liquid chromatograph possesses the advantage of liquid phase automatic sampling and adjustable ration sample, has solved the problem of mentioning in the above-mentioned background art.

The utility model provides a following technical scheme: the utility model provides an automatic sampling device of liquid chromatograph, includes the bottom plate, the top fixedly connected with box of bottom plate, the fixed intercommunication of right flank of box has the tuber pipe, the top surface fixedly connected with air-blower of bottom plate, the air outlet of air-blower and the fixed intercommunication of lower extreme of tuber pipe, the top surface fixedly connected with of bottom plate is located the left supporting legs of box, the top fixedly connected with liquid case of supporting legs, the inside top-down one side fixedly connected with No. two fixed plates and the fixed plate of box, the inside activity of box has cup jointed the pressure liquid board that is located a fixed plate below, the bottom surface fixedly connected with connecting rod of pressure liquid board, the lower extreme fixedly connected with baffle of connecting rod, the internal surface activity of box has cup jointed the limiting plate that is located pressure liquid board below, the top fixedly connected with adjusting lever of limiting plate, the top of adjusting lever is to passing pressure liquid, The top of fixed plate, No. two fixed plates and box extends to the outside and the fixedly connected with diaphragm of box, the top surface fixedly connected with threaded rod of box, the threaded rod cup joints with the diaphragm activity, the surface screw thread of threaded rod has cup jointed the locking cap, No. two springs of bottom surface fixedly connected with of diaphragm, the bottom of No. two springs and the top surface fixed connection of box.

Preferably, a fixed plate and No. two fixed plates all cup joint with the regulating lever activity, the upper end of tuber pipe is located the right side between a fixed plate and No. two fixed plates.

Preferably, a liquid inlet is formed below the inner surface of the box body, and the area of the liquid inlet is smaller than that of the baffle.

Preferably, the top of the liquid tank is fixedly communicated with a liquid feeding pipe, the bottom of the liquid tank is fixedly communicated with a liquid inlet pipe, and the right end of the liquid inlet pipe is fixedly communicated with a liquid inlet.

Preferably, a round hole is formed in the transverse plate, the diameter of the round hole is larger than that of the threaded rod, and the outer surface of the threaded rod is movably sleeved with the inner surface of the round hole.

Preferably, the inside of a fixed plate is provided with a vent hole, the bottom surface of a second fixed plate is fixedly connected with a spring, and the lower end of the spring penetrates through the vent hole, extends to the lower part of the first fixed plate and is fixedly connected with the liquid pressing plate.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this automatic sampling device of liquid chromatograph through addding the box at the top of bottom plate, has set up a fixed plate and No. two fixed plates in the box, and a fixed plate forms the cavity between No. two fixed plates to utilize the air-blower to blow into the cavity with wind, push away to the pressure liquid board and overcome spring force extrusion liquid level, extrude liquid into the drain pipe and take a sample, replace the people by the air-blower and take a sample, improved sample rate, it is convenient to reduce the use of human labor.

2. This automatic sampling device of liquid chromatograph is through addding the limiting plate in the hydrops board below to the adjusting lever of connecting through the limiting plate top surface extends to the outside, rotates locking cap and drives the diaphragm and shift up, and upwards draws the limiting plate, changes the limiting plate position, and the hydrops board is down apart from changing, extrudes the liquid volume and changes, has reached and has taken out the liquid phase of different volume, and the limiting plate makes and to take out equivalent liquid appearance in succession, and it is convenient to use, and the sample is accurate.

Drawings

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

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a partial cross-sectional view of the structure of the present invention;

fig. 4 is a schematic diagram of the sleeve connection between the structure adjusting rod and the first and second baffles of the present invention.

In the figure: 1. a base plate; 2. a box body; 3. a blower; 4. an air duct; 5. supporting legs; 6. a liquid tank; 7. a liquid inlet pipe; 8. a liquid feeding pipe; 9. a liquid outlet pipe; 10. a first fixing plate; 11. a second fixing plate; 12. a liquid pressing plate; 13. an adjusting lever; 14. a limiting plate; 15. a first spring; 16. a connecting rod; 17. a baffle plate; 18. a liquid inlet; 19. a transverse plate; 20. a threaded rod; 21. a locking cap; 22. a second spring; 23. a circular hole; 24. and (4) a vent hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, an automatic sampling device of a liquid chromatograph comprises a base plate 1, a box body 2 is fixedly connected to the top of the base plate 1, an air pipe 4 is fixedly communicated with the right side surface of the box body 2, an air blower 3 is fixedly connected to the top surface of the base plate 1, an air outlet of the air blower 3 is fixedly communicated with the lower end of the air pipe 4, a supporting leg 5 positioned on the left side of the box body 2 is fixedly connected to the top surface of the base plate 1, a liquid tank 6 is fixedly connected to the top end of the supporting leg 5, a second fixing plate 11 and a first fixing plate 10 are fixedly connected to one side of the interior of the box body 2 from top to bottom, a liquid pressing plate 12 positioned below the first fixing plate 10 is movably sleeved to the interior of the box body 2, a connecting rod 16 is fixedly connected to the bottom surface of the liquid pressing plate 12, a baffle 17 is fixedly connected, the top of adjusting rod 13 is to passing the top of hydropress plate 12, fixed plate 10, No. two fixed plates 11 and box 2 and extending to the outside of box 2 and fixedly connected with diaphragm 19 down and on in proper order, the top surface fixedly connected with threaded rod 20 of box 2, threaded rod 20 cup joints with diaphragm 19 activity, the surface screw thread of threaded rod 20 has cup jointed locking cap 21, No. two springs 22 of bottom surface fixedly connected with of diaphragm 19, the bottom of No. two springs 22 and the top surface fixed connection of box 2.

Further, No. one fixed plate 10 and No. two fixed plates 11 all cup joint with the activity of adjusting lever 13, guarantee that adjusting lever 13 can freely slide from top to bottom, accomplish the effect that changes the change of limiting plate 14 position, the upper end of tuber pipe 4 is located the right side between No. one fixed plate 10 and No. two fixed plates 11 for the wind that tuber pipe 4 was drawn forth can be in the cavity that forms between No. one fixed plate 10 and No. two fixed plates 11, and make wind only get into extrusion liquid pressing plate 12 by air vent 24.

Further, a liquid inlet 18 is formed below the inner surface of the box body 2, the area of the liquid inlet 18 is smaller than that of the baffle 17, and the baffle 17 can completely seal the liquid inlet 18, so that when liquid is extruded, only the liquid outlet pipe 9 extrudes the liquid phase.

Further, the top of liquid case 6 is fixed to be communicated with liquid feeding pipe 8, and liquid feeding pipe 8 is used for adding the liquid of waiting to take a sample, and the bottom of liquid case 6 is fixed to be communicated with liquid inlet pipe 7, and the right-hand member and the inlet 18 of liquid inlet pipe 7 are fixed to be communicated.

Further, round hole 23 has been seted up to the inside of diaphragm 19, and the diameter of round hole 23 is greater than the diameter of threaded rod 20, and the surface of threaded rod 20 cup joints with the internal surface activity of round hole 23 for can extrude diaphragm 19 upward displacement when locking cap 21 upwards rotates, accomplish the position change to limiting plate 14.

Further, vent hole 24 has been seted up to the inside of fixed plate 10, No. two bottom surface fixedly connected with spring 15 of fixed plate 11, and the lower extreme of spring 15 passes vent hole 24 and extends to the below of fixed plate 10 and with pressure liquid board 12 fixed connection, and specific spring 15's diameter is less than vent hole 24, and when the air-blower 3 of being convenient for stopped, spring 15 can stimulate pressure liquid board 12 and reset, is convenient for take a sample next time.

The working principle is as follows: put into to liquid case 6 and wait to get liquid, start air-blower 3, the wind pressure flows into No. two fixed plate belows via tuber pipe 4, and get into the below of fixed plate 10 via the air vent on fixed plate 10, liquid pressing plate 12 descends, drive connecting rod 16 and descend, make baffle 17 block the inlet, liquid extrudes via drain pipe 9 and gets simultaneously, liquid pressing plate 12 descends to limiting plate 14 top surface and stops, automatically controlled air-blower 3 intermittent type operates, liquid pressing plate 12 extrudes the sample repeatedly, when needs change the liquid output volume, rotatory locking cap 21, make diaphragm 19 go upward, drive adjusting lever 13 goes upward, and pulling limiting plate 14 goes upward, the distance between limiting plate 14 and liquid pressing plate 12 reduces, the extrusion liquid phasor reduces.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a liquid chromatograph automatic sampling device, includes bottom plate (1), its characterized in that: the top of the bottom plate (1) is fixedly connected with a box body (2), the right side face of the box body (2) is fixedly communicated with an air pipe (4), the top face of the bottom plate (1) is fixedly connected with an air blower (3), an air outlet of the air blower (3) is fixedly communicated with the lower end of the air pipe (4), the top face of the bottom plate (1) is fixedly connected with a supporting leg (5) positioned on the left side of the box body (2), the top end of the supporting leg (5) is fixedly connected with a liquid tank (6), one side of the interior of the box body (2) from top to bottom is fixedly connected with a second fixing plate (11) and a first fixing plate (10), a liquid pressing plate (12) positioned below the first fixing plate (10) is movably sleeved in the interior of the box body (2), the bottom face of the liquid pressing plate (12) is fixedly connected with a connecting rod, limiting plate (14) that are located liquid pressing plate (12) below have been cup jointed to the internal surface activity of box (2), top fixedly connected with adjusting lever (13) of limiting plate (14), the top of adjusting lever (13) is to passing liquid pressing plate (12), fixed plate (10), No. two fixed plates (11) and box (2) and extending to the outside and fixedly connected with diaphragm (19) of box (2) down in proper order, the top surface fixedly connected with threaded rod (20) of box (2), threaded rod (20) cup joint with diaphragm (19) activity, the surface screw thread of threaded rod (20) has cup jointed locking cap (21), No. two spring (22) of bottom surface fixedly connected with of diaphragm (19), the bottom of No. two spring (22) and the top surface fixed connection of box (2).

2. The automatic sampling device of a liquid chromatograph of claim 1, wherein: a fixed plate (10) and No. two fixed plates (11) all cup joint with adjusting lever (13) activity, the upper end of tuber pipe (4) is located the right side between a fixed plate (10) and No. two fixed plates (11).

3. The automatic sampling device of a liquid chromatograph of claim 1, wherein: a liquid inlet (18) is formed in the lower portion of the inner surface of the box body (2), and the area of the liquid inlet (18) is smaller than that of the baffle (17).

4. The automatic sampling device of a liquid chromatograph of claim 1, wherein: the liquid feeding device is characterized in that the top of the liquid tank (6) is fixedly communicated with a liquid feeding pipe (8), the bottom of the liquid tank (6) is fixedly communicated with a liquid feeding pipe (7), and the right end of the liquid feeding pipe (7) is fixedly communicated with a liquid inlet (18).

5. The automatic sampling device of a liquid chromatograph of claim 1, wherein: round hole (23) have been seted up to the inside of diaphragm (19), the diameter of round hole (23) is greater than the diameter of threaded rod (20), the surface of threaded rod (20) is cup jointed with the internal surface activity of round hole (23).

6. The automatic sampling device of a liquid chromatograph of claim 1, wherein: a vent hole (24) has been seted up to the inside of a fixed plate (10), bottom surface fixedly connected with spring (15) of No. two fixed plates (11), the lower extreme of spring (15) passes vent hole (24) and extends to the below of a fixed plate (10) and with hydropress board (12) fixed connection.