Waste liquid collecting device of liquid chromatograph

Abstract

The utility model relates to the technical field of liquid chromatograph waste liquid collection, and discloses a liquid chromatograph waste liquid collection device which comprises a supporting bottom plate, a fixed bottom frame is inserted into the top end of the supporting bottom plate, a limiting clamping plate is welded to the surface of the fixed bottom frame, and clamping blocks are welded to the left end and the right end of the fixed bottom frame. The liquid chromatograph waste liquid collecting tank is connected to a waste liquid discharging pipeline of a liquid chromatograph through a connecting clamping ring on the surface of a connecting pipe, so that waste liquid flows into the waste liquid collecting tank, a rotating handle is rotated to drive a connecting clamping plate to be separated from the interior of a second rotating frame, and a limiting inserting rod is taken out from the position between a rotating frame and a supporting bottom plate; and the waste liquid collecting tank and the fixed bottom frame are taken out from the positioning groove of the supporting bottom plate by rotating the rotating frame to be matched with the rotating ring of the bearing.

Description

Technical Field

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

[0002] When analyzing chemical samples, liquid chromatography instruments generate a certain amount of waste liquid. This waste liquid contains organic solvents, acids, bases, and other chemicals. If improperly handled, it can pose a threat to the environment and human health. Therefore, the collection and treatment of liquid chromatography waste liquid has become an important part of laboratory safety management. In recent years, with the increasing awareness of environmental protection and technological advancements, the collection methods of liquid chromatography waste liquid have been continuously optimized, tending to be safer, more environmentally friendly, and more efficient.

[0003] Comparative Publication No. CN 214139913 U A device for collecting waste liquid from a liquid chromatograph, comprising an upper waste liquid barrel and a lower waste liquid barrel which are sequentially connected from top to bottom, a liquid outlet pipe for connecting the upper waste liquid barrel and the lower waste liquid barrel, and a valve for automatically controlling the opening / closing of the liquid outlet pipe; the liquid outlet pipe is detachably connected to the lower waste liquid barrel; the liquid outlet pipe is fixedly connected to the bottom end of the upper waste liquid barrel; further, the valve comprises a solenoid valve provided on the liquid outlet pipe and a first liquid level sensor provided on the inner wall of the upper waste liquid barrel; the solenoid valve is electrically connected to the first liquid level sensor; further, a liquid inlet hole is provided at the upper end of the lower waste liquid barrel, and the liquid outlet pipe is provided at the bottom end of the upper waste liquid barrel. In the liquid inlet hole, further, a limiting ring is provided at one end of the liquid outlet pipe near the lower waste liquid barrel, and the outer diameter of the limiting ring is larger than the diameter of the liquid inlet hole; the limiting ring abuts against the outer side of the top of the lower waste liquid barrel, and further, a bracket for supporting the upper waste liquid barrel is included. Furthermore, a second liquid level sensor is provided on the inner wall of the lower waste liquid barrel, and an indicator light is provided on the outer wall of the lower waste liquid barrel. Liquid flows into the upper waste liquid barrel through the liquid inlet pipe. When the waste liquid in the upper waste liquid barrel reaches a certain amount, the valve automatically opens, allowing the waste liquid to enter the lower waste liquid barrel. This ensures that even when the instrument continuously produces waste liquid, the waste liquid in the lower waste liquid barrel can be disposed of in a timely manner. This will not affect the operation of the instrument, and no additional container is required to temporarily collect the waste liquid.

[0004] In the above-mentioned liquid chromatograph waste liquid collection device, waste liquid flows into the upper waste liquid barrel through the liquid inlet pipe. When the waste liquid in the upper waste liquid barrel reaches a certain amount, the valve automatically opens, allowing the waste liquid to flow into the lower waste liquid barrel. This ensures that even when the instrument is continuously producing waste liquid, the waste liquid in the lower waste liquid barrel can be promptly disposed of. This does not affect the operation of the instrument and does not require additional containers for temporary waste liquid collection.

[0005] However, when too much waste liquid is stored in the two waste liquid barrels, it is not conducive to the staff to remove and install the waste liquid barrels from the equipment, affecting the overall operation convenience of the waste liquid collection equipment. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a waste liquid collection device for a liquid chromatograph.

[0007] The utility model is implemented by the following technical solution: a waste liquid collection device for a liquid chromatograph, comprising a supporting bottom plate, a fixed bottom frame plugged into the top of the supporting bottom plate, a limited clamping plate welded to the surface of the fixed bottom frame, clamping blocks welded to the left and right ends of the fixed bottom frame, and a movable wheel fixedly connected to the bottom end of the supporting bottom plate;

[0008] The top of the supporting base plate is welded with a bearing, the interior of the bearing is fixedly connected to a rotating frame, the interior of the rotating frame is plugged with a limiting rod, the surface of the fixed bottom frame is welded with a first rotating frame, the surface of the first rotating frame is rotatably connected to a rotating handle, the top of the rotating handle is welded with a connecting clamping plate, the interior of the connecting clamping plate is clamped with a second rotating frame, the second rotating frame is welded to the surface of the waste liquid collection tank, the waste liquid collection tank is plugged into the interior of the fixed bottom frame, the top of the waste liquid collection tank is plugged with a tank top plate, the interior of the tank top plate is threadedly connected to a connecting bolt, the top of the tank top plate is welded with a connecting pipe, the surface of the connecting pipe is threadedly connected to a connecting clamping ring, and the bottom end of the tank top plate is fixedly connected to a sealing ring.

[0009] Through the above technical solution, the number of limiting card plates is set to four, and when the fixed bottom frame is installed inside the supporting bottom plate in conjunction with the limiting card plates, the limiting plug rods can be used to ensure the stability of the connection between the two.

[0010] As a further improvement of the above solution, the sealing ring is located at the top of the waste liquid collection tank, the connecting bolts are symmetrically distributed with the tank top plate as the center, and the connecting clamp is located at the top of the tank top plate.

[0011] As a further improvement of the above solution, the limiting card plate is symmetrically distributed with the fixed bottom frame as the center, the connecting block is symmetrically distributed with the fixed bottom frame as the center, the connecting block is inserted into the interior of the supporting bottom plate, and the limiting card plate is inserted into the interior of the supporting bottom plate.

[0012] As a further improvement of the above solution, the limiting rods are inserted into the positioning grooves of the supporting base plate, the limiting rods are symmetrically distributed with the fixed base frame as the center, and the rotating frames are symmetrically distributed with the fixed base frame as the center.

[0013] Through the above technical solution, the number of the limiting plug rods is set to be several, which can limit and fix the fixed bottom frame installed inside the supporting bottom plate.

[0014] As a further improvement of the above solution, the supporting base is located at the bottom end of the waste liquid collection tank, the movable wheels are symmetrically distributed around the supporting base, and the second rotating frame is symmetrically distributed around the waste liquid collection tank.

[0015] As a further improvement of the above solution, the first rotating frame is symmetrically distributed with the fixed bottom frame as the center, the rotating handle is symmetrically distributed with the fixed bottom frame as the center, and the connecting card is symmetrically distributed with the fixed bottom frame as the center.

[0016] As a further improvement of the above solution, the internal thread of the waste liquid collection tank is connected with a connecting bolt, the first rotating frame is located at the top of the supporting base plate, and the rotating handle is located at the top of the supporting base plate. Compared with the existing technology, the beneficial effects of the present invention are:

[0017] The utility model is connected to the pipeline for discharging waste liquid of the liquid chromatograph through the connecting clamp ring on the surface of the connecting pipe, so that the waste liquid flows into the interior of the waste liquid collecting tank, and the connecting clamp plate is driven by the handle to disengage from the interior of the second rotating frame, and the limiting plug rod is further taken out from the positioning groove of the rotating frame and the supporting bottom plate. In combination with the rotating ring of the rotating frame and the bearing, the waste liquid collecting tank and the fixed bottom frame can be taken out from the positioning groove of the supporting bottom plate, which is convenient for the staff to install and disassemble the waste liquid collecting tank when too much waste liquid is collected in the waste liquid collecting tank.

[0018] The utility model separates the tank top plate from the waste liquid collection tank by arranging connecting bolts, which makes it convenient for staff to clean the waste liquid remaining inside the waste liquid collection tank. By arranging a rotating handle and a connecting clamping plate, the second rotating frame on the surface of the waste liquid collection tank can be limited, ensuring the limited fixation of the fixed bottom frame and the waste liquid collection tank bracket, thereby ensuring the stability of the waste liquid collection tank when working. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the anatomical structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the disassembly structure of the tank top plate of the utility model;

[0022] Figure 4 This is a schematic diagram of the disassembly structure of the fixed bottom frame of the utility model;

[0023] Figure 5 It is a right side structural schematic diagram of the utility model.

[0024] Description of main symbols:

[0025] 1. Support base plate; 2. Fixed bottom frame; 3. Limiting clamp plate; 4. Clamping block; 5. Moving wheel; 6. Bearing; 7. Rotating frame; 8. Limiting rod; 9. First rotating frame; 10. Rotating handle; 11. Connecting clamp plate; 12. Second rotating frame; 13. Waste liquid collection tank; 14. Tank top plate; 15. Connecting bolts; 16. Connecting pipe; 17. Connecting clamp ring; 18. Sealing ring. DETAILED DESCRIPTION

[0026] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] Example:

[0028] Please combine Figure 1-5 The waste liquid collection device of a liquid chromatograph of this embodiment includes a supporting base plate 1, a fixed bottom frame 2 is inserted into the top of the supporting base plate 1, a limiting clamping plate 3 is welded to the surface of the fixed bottom frame 2, a clamping block 4 is welded to the left and right ends of the fixed bottom frame 2, and a movable wheel 5 is fixedly connected to the bottom end of the supporting base plate 1;

[0029] A bearing 6 is welded to the top of the supporting base plate 1, and a rotating frame 7 is fixedly connected to the inside of the bearing 6. A limiting plug rod 8 is inserted into the inside of the rotating frame 7. A first rotating frame 9 is welded to the surface of the fixed bottom frame 2. A rotating handle 10 is rotatably connected to the surface of the first rotating frame 9. A connecting card 11 is welded to the top of the rotating handle 10. A second rotating frame 12 is clamped to the inside of the connecting card 11. The second rotating frame 12 is welded to the surface of the waste liquid collection tank 13. The waste liquid collection tank 13 is plugged into the inside of the fixed bottom frame 2. The top of the waste liquid collection tank 13 is plugged with a tank top plate 14. The inside of the tank top plate 14 is threadedly connected to a connecting bolt 15. A connecting pipe 16 is welded to the top of the tank top plate 14. The surface of the connecting pipe 16 is threadedly connected to a connecting clamp ring 17. A sealing ring 18 is fixedly connected to the bottom end of the tank top plate 14, which is connected to the pipe for discharging waste liquid from the liquid chromatograph through the connecting clamp 17 on the surface of the connecting pipe 16, so that the waste liquid flows into the interior of the waste liquid collection tank 13. By rotating the rotating handle 10, the connecting clamp 11 is driven to disengage from the interior of the second rotating frame 12, and the limiting rod 8 is taken out from the positioning groove of the rotating frame 7 and the supporting bottom plate 1. Combined with the rotating ring of the rotating frame 7 and the bearing 6, the waste liquid collection tank 13 and the fixed bottom frame 2 can be taken out from the positioning groove of the supporting bottom plate 1, which is convenient for the staff to install and disassemble the waste liquid collection tank 13 when too much waste liquid is collected inside the waste liquid collection tank 13, further providing convenient conditions for the staff to handle the waste liquid.

[0030] The number of the limiting clamps 3 is set to four. When the fixed bottom frame 2 is installed inside the supporting bottom plate 1 in conjunction with the limiting clamps 3, the limiting rods 8 can be used to improve the stability of the connection between the two.

[0031] The sealing ring 18 is located at the top of the waste liquid collection tank 13 , and the connecting bolts 15 are symmetrically distributed around the tank top plate 14 .

[0032] The limiting card plates 3 are symmetrically distributed with the fixed bottom frame 2 as the center, the connecting blocks 4 are symmetrically distributed with the fixed bottom frame 2 as the center, the connecting blocks 4 are plugged into the interior of the supporting bottom plate 1, and the limiting card plates 3 are plugged into the interior of the supporting bottom plate 1.

[0033] A limiting rod 8 is inserted into the interior of the supporting base plate 1 . The limiting rod 8 is symmetrically distributed with the fixed base frame 2 as the center. The rotating frame 7 is symmetrically distributed with the fixed base frame 2 as the center.

[0034] The number of the limiting rods 8 is set to be several, which can limit and fix the fixed bottom frame 2 installed inside the supporting base plate 1.

[0035] The supporting base plate 1 is located at the bottom end of the waste liquid collection tank 13, the moving wheels 5 are symmetrically distributed with the supporting base plate 1 as the center, and the second rotating frame 12 is symmetrically distributed with the waste liquid collection tank 13 as the center. By setting the connecting bolts 15, the tank top plate 14 can be removed from the waste liquid collection tank 13, so that the staff can conveniently clean the waste liquid remaining in the waste liquid collection tank 13 after processing the waste liquid inside the waste liquid collection tank 13. By setting the rotating handle 10 and the connecting card 11, the second rotating frame 12 on the surface of the waste liquid collection tank 13 can be limited to ensure the limit fixation between the fixed bottom frame 2 and the waste liquid collection tank 13, thereby ensuring the stability of the waste liquid collection tank 13 during operation.

[0036] The first rotating frame 9 is symmetrically distributed with the fixed bottom frame 2 as the center, the rotating handle 10 is symmetrically distributed with the fixed bottom frame 2 as the center, and the connecting clamping plate 11 is symmetrically distributed with the fixed bottom frame 2 as the center.

[0037] The waste liquid collection tank 13 is internally threadedly connected with a connecting bolt 15 . The first rotating frame 9 is located at the top of the supporting base plate 1 . The rotating handle 10 is located at the top of the supporting base plate 1 .

[0038] When in use, place the equipment in a suitable position and connect it to the pipe for discharging waste liquid from the liquid chromatograph through the connecting clip 17 on the surface of the connecting pipe 16, so that the waste liquid flows into the interior of the waste liquid collection tank 13. When removing the waste liquid collection tank 13, turn the rotating handle 10 to drive the connecting clip 11 to disengage from the interior of the second rotating frame 12, and remove the limiting rod 8 from between the rotating frame 7 and the supporting base plate 1. Combined with the rotating ring of the rotating frame 7 and the bearing 6, the waste liquid collection tank 13 and the fixed bottom frame 2 are removed from the positioning groove of the supporting base plate 1, which is convenient for the staff to install and disassemble the waste liquid collection tank 13 when too much waste liquid is collected inside the waste liquid collection tank 13, further providing convenient conditions for the staff to handle the waste liquid.

[0039] By setting the connecting bolts 15, the separation of the tank top plate 14 and the waste liquid collection tank 13 is facilitated, and the staff can clean the inside of the waste liquid collection tank 13 after the waste liquid inside the waste liquid collection tank 13 is processed. By setting the rotating handle 10 and the connecting card 11, the second rotating frame 12 on the surface of the waste liquid collection tank 13 can be limited to ensure the stability of the connection between the fixed bottom frame 2 and the waste liquid collection tank 13, and enhance the stability of the waste liquid collection tank 13 when collecting waste liquid.

[0040] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A waste liquid collection device for a liquid chromatograph, comprising a supporting base plate (1), a fixed base frame (2) plugged into the top end of the supporting base plate (1), a limiting clamping plate (3) welded to the surface of the fixed base frame (2), a clamping block (4) welded to the left and right ends of the fixed base frame (2), and a movable wheel (5) fixedly connected to the bottom end of the supporting base plate (1); It is characterized by: A bearing (6) is welded to the top of the supporting base plate (1), a rotating frame (7) is fixedly connected to the inside of the bearing (6), a limiting plug rod (8) is inserted into the inside of the rotating frame (7), a first rotating frame (9) is welded to the surface of the fixed bottom frame (2), a rotating handle (10) is rotatably connected to the surface of the first rotating frame (9), a connecting clamp (11) is welded to the top of the rotating handle (10), a second rotating frame (12) is clamped to the inside of the connecting clamp (11), and the second rotating frame (12) is welded on the surface of the waste liquid collection tank (13), the waste liquid collection tank (13) is plugged into the inside of the fixed bottom frame (2), the top end of the waste liquid collection tank (13) is plugged with a tank top plate (14), the internal thread of the tank top plate (14) is connected with a connecting bolt (15), the top end of the tank top plate (14) is welded with a connecting pipe (16), the surface of the connecting pipe (16) is threadedly connected with a connecting clamp (17), and the bottom end of the tank top plate (14) is fixedly connected with a sealing ring (18).

2. The waste liquid collection device for a liquid chromatograph according to claim 1, wherein: The sealing ring (18) is located at the top of the waste liquid collection tank (13), the connecting bolts (15) are symmetrically distributed with the tank top plate (14) as the center, and the connecting clamp ring (17) is located at the top of the tank top plate (14).

3. The waste liquid collection device for a liquid chromatograph according to claim 1, wherein: The limiting card plates (3) are symmetrically distributed with the fixed bottom frame (2) as the center, the connecting blocks (4) are symmetrically distributed with the fixed bottom frame (2) as the center, the connecting blocks (4) are plugged into the interior of the supporting bottom plate (1), and the limiting card plates (3) are plugged into the interior of the supporting bottom plate (1).

4. The waste liquid collection device for a liquid chromatograph as claimed in claim 3, wherein: The limiting rod (8) is inserted into the positioning groove of the supporting base plate (1); the limiting rod (8) is symmetrically distributed with the fixed base frame (2) as the center; and the rotating frame (7) is symmetrically distributed with the fixed base frame (2) as the center.

5. The waste liquid collection device for a liquid chromatograph according to claim 1, wherein: The supporting base plate (1) is located at the bottom end of the waste liquid collection tank (13), the movable wheels (5) are symmetrically distributed with the supporting base plate (1) as the center, and the second rotating frame (12) is symmetrically distributed with the waste liquid collection tank (13) as the center.

6. The waste liquid collection device for a liquid chromatograph according to claim 5, wherein: The first rotating frame (9) is symmetrically distributed with the fixed bottom frame (2) as the center, the rotating handle (10) is symmetrically distributed with the fixed bottom frame (2) as the center, and the connecting card (11) is symmetrically distributed with the fixed bottom frame (2) as the center.

7. The waste liquid collection device for a liquid chromatograph according to claim 6, wherein: The internal thread of the waste liquid collection tank (13) is connected with a connecting bolt (15), the first rotating frame (9) is located at the top of the supporting base plate (1), and the rotating handle (10) is located at the top of the supporting base plate (1).

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