Mobile phase waste liquid collecting device for liquid chromatograph

Abstract

The utility model discloses a mobile phase waste liquid collecting device for a liquid chromatograph, and relates to the technical field of the liquid chromatograph, the upper part of a waste liquid inlet of a collecting barrel is provided with a liquid inlet pipe, the outer side of the liquid inlet pipe is sleeved with a waste liquid main pipe, the waste liquid main pipe is provided with a plurality of liquid inlet holes along the vertical direction, and the plurality of liquid inlet holes are respectively communicated with a waste liquid branch pipe; an air outlet is formed in the top of the waste liquid main pipe, and a liquid outlet is formed in one side of the collecting barrel. Mobile phase waste liquid of a plurality of liquid chromatographs flows into the waste liquid main pipe through the corresponding waste liquid branch pipes and enters the collecting barrel after being collected by the waste liquid main pipe, so that unified collection of the mobile phase waste liquid of the plurality of liquid chromatographs is realized, the space is greatly saved, subsequent unified treatment is facilitated, the air outlet can balance air pressure inside and outside the collecting barrel, and the working efficiency is improved. Waste liquid can enter the collecting barrel more smoothly and is finally discharged through the liquid outlet.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid chromatographs, in particular to a mobile phase waste liquid collecting device for liquid chromatographs. Background Art

[0002] Liquid chromatographs are equipment required for various chemical experiments, biomedical experiments, etc., and mobile phase waste liquid will be discharged during use. As far as the current existing technology is concerned, when conducting various experiments, the waste liquid is usually treated by using a discharge pipe to lead it into a waste liquid barrel for collection. However, in order to improve the detection efficiency, laboratories generally have multiple liquid chromatographs, each of which corresponds to a waste liquid barrel, which takes up space and is not conducive to the unified collection and treatment of waste liquid, making it inconvenient to use. Summary of the invention

[0003] The technical problem to be solved by the utility model is: in view of the deficiencies in the prior art, a mobile phase waste liquid collection device for a liquid chromatograph is provided, which realizes the unified collection and treatment of waste liquids of multiple liquid chromatographs and is easy to use.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] A mobile phase waste liquid collection device for a liquid chromatograph comprises a collection barrel, a liquid inlet pipe is arranged on the upper part of the waste liquid inlet of the collection barrel, a waste liquid main pipe is sleeved on the outer side of the liquid inlet pipe, the waste liquid main pipe is vertically provided with a plurality of liquid inlet holes, and the plurality of liquid inlet holes are respectively connected to waste liquid branch pipes;

[0006] An air outlet is provided on the top of the waste liquid main pipe, and a liquid discharge port is provided on one side of the collection barrel.

[0007] As an improved technical solution, a plurality of the liquid inlet holes are provided with inserting tubes on their outer sides, a connecting tube is sleeved on the outer sides of the inserting tubes, and the waste liquid branch tube is inserted into the inner side of the other end of the connecting tube.

[0008] As an improved technical solution, the waste liquid main pipe is provided with an anti-dropout cover on the outside of the insert tube, a rotation groove is formed between the anti-dropout cover and the waste liquid main pipe, a card block is provided on the outside of the bottom of the connecting pipe, and the anti-dropout cover is provided with a card slot adapted to the card block.

[0009] As an improved technical solution, a cover body adapted to the air outlet is provided on the top of the waste liquid main pipe.

[0010] As an improved technical solution, a U-shaped seat is provided on one side of the top of the waste liquid main pipe, a fixing rod is provided between the two U-shaped seats, a rotating rod is provided on the outside of the fixing rod, a flexible connecting pipe is provided on the outside of the rotating rod, and the other end of the connecting pipe is fixedly connected to the cover body.

[0011] As an improved technical solution, a universal wheel is provided at the bottom of the collecting bucket, and a brake pad is provided above the universal wheel.

[0012] As a preferred technical solution, the bottom plate of the collecting barrel is tilted toward the drain outlet.

[0013] As a preferred technical solution, a glass window is provided on the top of the collection barrel.

[0014] As a preferred technical solution, a liquid level sensor is provided in the collection bucket, and the liquid level sensor is electrically connected to a controller.

[0015] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0016] The utility model discloses a mobile phase waste liquid collection device for a liquid chromatograph, comprising a collection barrel, a liquid inlet pipe is provided at the upper part of the waste liquid inlet of the collection barrel, a waste liquid main pipe is sleeved on the outer side of the liquid inlet pipe, the waste liquid main pipe is vertically provided with a plurality of liquid inlet holes, and the plurality of liquid inlet holes are respectively connected to waste liquid branch pipes; an air outlet is provided at the top of the waste liquid main pipe, and a liquid discharge port is provided on one side of the collection barrel. Mobile phase waste liquids of multiple liquid chromatographs flow into the waste liquid main pipe through their corresponding waste liquid branch pipes, and enter the collection barrel after being collected by the waste liquid main pipe, thereby realizing the unified collection of mobile phase waste liquids of multiple liquid chromatographs, greatly saving space, and facilitating subsequent unified processing; the air outlet can balance the air pressure inside and outside the collection barrel, and the waste liquid can enter the collection barrel more smoothly, and finally be discharged through the liquid discharge port.

[0017] The utility model has a plurality of inserting tubes on the outside of the liquid inlet holes, a connecting tube is sleeved on the outside of the inserting tube, and the waste liquid branch pipe is inserted inside the other end of the connecting tube. The inserting tube and the waste liquid branch pipe can be docked and fixed through the connecting tube, and the waste liquid can smoothly enter the waste liquid main pipe from the waste liquid branch pipe, which is convenient to use.

[0018] The waste liquid main pipe is provided with an anti-drop cover on the outside of the insert pipe, a rotation groove is formed between the anti-drop cover and the waste liquid main pipe, a clamping block is provided on the outside of the bottom of the connecting pipe, and the anti-drop cover is provided with a clamping groove adapted to the clamping block. The clamping block is clamped into the rotation groove from the clamping groove, and then the connecting pipe is rotated to make the clamping block staggered with the clamping groove. At this time, the inner wall of the anti-drop cover plays a role of limiting and fixing the clamping block, preventing the clamping block from falling out of the rotation groove, thereby achieving the fixation of the connecting pipe.

[0019] The top of the waste liquid main pipe is provided with a cover body adapted to the gas outlet. When the liquid chromatograph is not in use, the cover body can be inserted into the gas outlet to seal the gas outlet and prevent the odorous gas in the collection barrel from being emitted into the air and polluting the air.

[0020] A U-shaped seat is provided on one side of the top of the waste liquid main pipe, a fixing rod is provided between the two U-shaped seats, a rotating rod is provided on the outside of the fixing rod, a flexible connecting pipe is provided on the outside of the rotating rod, and the other end of the connecting pipe is fixedly connected to the cover body. The rotating direction of the connecting pipe can be adjusted by rotating the rotating rod, so that the cover body rotates around the fixing rod, which can better realize the closing and opening of the cover body and the air outlet.

[0021] A universal wheel is provided at the bottom of the collection bucket, and a brake pad is provided above the universal wheel. The universal wheel includes two symmetrically arranged guard plates and a rotating wheel arranged between the two guard plates, and a brake pad is rotatably provided on the guard plate, and a plurality of brake serrations adapted to the rotating wheel are provided at the free end of the brake pad. The universal wheel can make the collection bucket easier to move and more flexible to use, and the brake serrations can firmly fix the rotating wheel to prevent the universal wheel from rotating at will during use.

[0022] The bottom plate of the collecting barrel is tilted toward one side of the liquid discharge port, so that the waste liquid in the collecting barrel can be emptied more thoroughly.

[0023] A glass window is provided on the top of the collecting barrel, so that the liquid level of the waste liquid in the collecting barrel can be better observed, so as to empty the waste liquid in the collecting barrel in time.

[0024] A liquid level sensor is provided in the collection barrel, and the liquid level sensor is electrically connected to a controller. When the liquid level of the waste liquid in the collection barrel reaches the threshold of the liquid level sensor, a signal will be transmitted to the controller. After receiving the signal, the controller will issue an alarm to facilitate timely discharge of the waste liquid in the collection barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0027] Figure 2 It is a structural schematic diagram of another direction of the embodiment of the utility model;

[0028] Figure 3 It is a cross-sectional view of an embodiment of the utility model;

[0029] Figure 4 It is a cross-sectional view of another direction of the embodiment of the utility model;

[0030] Figure 5 yes Figure 1 The structural diagram of the waste liquid main pipe;

[0031] Figure 6 yes Figure 4 The enlarged view of point A in the middle;

[0032] Among them: 1. Collection bucket; 2. Liquid inlet pipe; 3. Waste liquid main pipe; 4. Liquid inlet hole; 5. Waste liquid branch pipe; 6. Air outlet; 7. Liquid discharge port; 8. Insert pipe; 9. Connecting pipe; 10. Anti-drop cover; 11. Rotating groove; 12. Block; 13. Slot; 14. Cover; 15. U-shaped seat; 16. Fixed rod; 17. Rotating rod; 18. Connecting pipe; 19. Universal wheel; 20. Brake pad; 21. Brake serration; 22. Rotating wheel; 23. Guard plate; 24. Glass window; 25. Liquid level sensor. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0034] like Figure 1-6 As shown, a mobile phase waste liquid collection device for a liquid chromatograph comprises a collection barrel 1, a liquid inlet pipe 2 is provided at the upper part of the waste liquid inlet of the collection barrel 1, a waste liquid main pipe 3 is sleeved on the outer side of the liquid inlet pipe 2, the waste liquid main pipe 3 is provided with a plurality of liquid inlet holes 4 in the vertical direction, and the plurality of liquid inlet holes 4 are respectively connected with waste liquid branch pipes 5; an air outlet 6 is provided at the top of the waste liquid main pipe 3, and a liquid discharge port 7 is provided on one side of the collection barrel 1. Mobile phase waste liquids of multiple liquid chromatographs flow into the waste liquid main pipe 3 through the corresponding waste liquid branch pipes 5, and enter the collection barrel 1 after being collected by the waste liquid main pipe 3, so that the mobile phase waste liquids of multiple liquid chromatographs are uniformly collected, which greatly saves space and is convenient for subsequent uniform treatment. The air outlet 6 can balance the air pressure inside and outside the collection barrel 1, so that the waste liquid can enter the collection barrel 1 more smoothly and finally be discharged through the liquid discharge port 7.

[0035] The outer sides of the plurality of liquid inlet holes 4 are provided with inserting tubes 8, the outer sides of the inserting tubes 8 are sleeved with connecting tubes 9, and the waste liquid branch pipes 5 are inserted into the inner sides of the other ends of the connecting tubes 9. The inserting tubes 8 and the waste liquid branch pipes 5 can be docked and fixed by the connecting tubes 9, and the waste liquid can smoothly enter the waste liquid main pipe 3 from the waste liquid branch pipes 5, which is convenient to use.

[0036] The waste liquid main pipe 3 is provided with an anti-drop cover 10 on the outside of the insert pipe 8, a rotation groove 11 is formed between the anti-drop cover 10 and the waste liquid main pipe 3, a clamping block 12 is provided on the outside of the bottom of the connecting pipe 9, and the anti-drop cover 10 is provided with a clamping groove 13 adapted to the clamping block 12. The clamping block 12 is clamped into the rotation groove 11 from the clamping groove 13, and then the connecting pipe 9 is rotated to make the clamping block 12 staggered with the clamping groove 13. At this time, the inner wall of the anti-drop cover 10 plays a role of limiting and fixing the clamping block 12, preventing the clamping block 12 from falling out of the rotation groove 11, thereby achieving the fixing of the connecting pipe 9.

[0037] The top of the waste liquid main pipe 3 is provided with a cover 14 adapted to the gas outlet 6. When the liquid chromatograph is not in use, the cover 14 can be inserted into the gas outlet 6 to seal the gas outlet 6, thereby preventing the odorous gas in the collection barrel 1 from being emitted into the air and polluting the air.

[0038] A U-shaped seat 15 is provided on one side of the top of the waste liquid main pipe 3, a fixing rod 16 is provided between the two U-shaped seats 15, a rotating rod 17 is provided on the outside of the fixing rod 16, a flexible connecting pipe 18 is provided on the outside of the rotating rod 17, and the other end of the connecting pipe 18 is fixedly connected to the cover body 14. The rotating direction of the connecting pipe 18 can be adjusted by rotating the rotating rod 17, so that the cover body 14 rotates around the fixing rod 16, and the closing and opening of the cover body 14 and the air outlet 6 can be better realized.

[0039] A universal wheel 19 is provided at the bottom of the collection bucket 1, and a brake pad 20 is provided above the universal wheel 19. The universal wheel 19 includes two symmetrically arranged guard plates 23 and a rotating wheel 22 arranged between the two guard plates 23, and the brake pad 20 is rotatably provided on the guard plate 23, and a plurality of brake serrations 21 adapted to the rotating wheel 22 are provided at the free end of the brake pad 20. The universal wheel 19 can make the collection bucket 1 easier to move and more flexible to use, and the brake serrations 21 can firmly fix the rotating wheel 22 to prevent the universal wheel 19 from rotating at will during use.

[0040] The bottom plate of the collecting barrel 1 is tilted toward the drain port 7 so that the waste liquid in the collecting barrel 1 can be drained more thoroughly.

[0041] A glass window 24 is provided on the top of the collecting barrel 1, so that the liquid level of the waste liquid in the collecting barrel 1 can be better observed, so as to empty the waste liquid in the collecting barrel 1 in time.

[0042] A liquid level sensor 25 is provided in the collection barrel 1, and the liquid level sensor 25 is electrically connected to a controller. When the liquid level of the waste liquid in the collection barrel 1 reaches the threshold of the liquid level sensor 25, a signal is transmitted to the controller. After receiving the signal, the controller issues an alarm to facilitate timely discharge of the waste liquid in the collection barrel 1.

[0043] It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

Claims

1. A mobile phase waste liquid collection device for a liquid chromatograph, comprising a collection barrel, characterized in that: A liquid inlet pipe is provided at the upper part of the waste liquid inlet of the collecting barrel, a waste liquid main pipe is sleeved on the outer side of the liquid inlet pipe, and the waste liquid main pipe is vertically provided with a plurality of liquid inlet holes, and the plurality of liquid inlet holes are respectively connected to waste liquid branch pipes; An air outlet is provided on the top of the waste liquid main pipe, and a liquid discharge port is provided on one side of the collection barrel; A plurality of the liquid inlet holes are provided with inserting tubes on their outer sides, a connecting tube is sleeved on the outer sides of the inserting tubes, and the waste liquid branch pipe is inserted into the inner side of the other end of the connecting tube; The waste liquid main pipe is provided with an anti-drop cover on the outside of the insert pipe, a rotation groove is formed between the anti-drop cover and the waste liquid main pipe, a clamping block is provided on the outside of the bottom of the connecting pipe, and the anti-drop cover is provided with a clamping groove adapted to the clamping block.

2. A mobile phase waste liquid collecting device for liquid chromatograph as claimed in claim 1, characterized in that: The top of the waste liquid main pipe is provided with a cover body adapted to the air outlet.

3. A mobile phase waste liquid collecting device for liquid chromatograph as claimed in claim 2, characterized in that: A U-shaped seat is provided on one side of the top of the waste liquid main pipe, a fixing rod is provided between the two U-shaped seats, a rotating rod is provided on the outside of the fixing rod, a flexible connecting pipe is provided on the outside of the rotating rod, and the other end of the connecting pipe is fixedly connected to the cover body.

4. A mobile phase waste liquid collecting device for liquid chromatograph as claimed in claim 1, characterized in that: A universal wheel is arranged at the bottom of the collecting bucket, and a brake pad is arranged above the universal wheel.

5. A mobile phase waste liquid collecting device for liquid chromatograph as claimed in claim 1, characterized in that: The bottom plate of the collecting barrel is tilted toward one side of the liquid discharge port.

6. A mobile phase waste liquid collecting device for liquid chromatograph as claimed in claim 1, characterized in that: A glass window is arranged on the top of the collecting barrel.

7. A mobile phase waste liquid collecting device for liquid chromatograph as claimed in claim 1, characterized in that: A liquid level sensor is arranged in the collection bucket, and the liquid level sensor is electrically connected to a controller.

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