Fractional fraction collector not prone to liquid accumulation

Abstract

A transmission device is arranged on a mounting frame, a liquid dropping device is movably connected to the transmission device, a collecting frame is arranged on the mounting frame, a splash-proof device is arranged in a first placing plate of the collecting frame, a collecting device is arranged in a second placing plate of the collecting frame, and the bottom of the splash-proof device is inserted into the collecting device. The collecting device comprises a primary collecting pipe and a secondary collecting pipe, and a final collecting device is arranged below the collecting device; according to the utility model, the splash-proof device is arranged, so that the receiving area of fraction liquid is effectively increased, the possibility that the liquid splashes outwards is reduced, and meanwhile, the enclosure is arranged to surround the whole collecting area, so that the liquid is further prevented from splashing to the outside; by arranging the primary collecting pipe, the secondary collecting pipe and the final collecting device, multi-stage protection is set for preventing the fraction liquid from flowing out, even if the upper collecting pipe overflows excessively, the fraction liquid can be collected by the lower collecting device, equipment is prevented from being polluted by accumulated liquid, and meanwhile the loss of the fraction liquid is reduced.

Description

Technical Field

[0001] The utility model relates to a fraction collector, in particular to a fraction collector that is not prone to liquid accumulation. Background Art

[0002] A fraction collector is a commonly used laboratory device in the fields of chemistry, biochemistry, pharmacy, petroleum refining and related fields. It is mainly used to automatically collect liquids of different components during chromatography, distillation or other separation processes. Its basic principle is to separate and collect each component in the mixture according to the physical or chemical properties of the liquid, such as boiling point, polarity or molecular weight.

[0003] In the existing fraction collector, when collecting fractions, liquid splashing occurs when the fraction liquid contacts the collection inlet, and when excessive collection occurs, the fraction liquid overflows from the collection tube. The splashed and overflowed fraction liquid will cause liquid accumulation, which will not only pollute the equipment, but also cause loss of fraction liquid. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a fraction collector that is not prone to liquid accumulation, so as to solve the problems put forward in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A fraction collector that is not prone to liquid accumulation includes a mounting frame. A transmission device is provided on the mounting frame, and a dropping device is movably connected to the transmission device. A collection frame is detachably connected to the mounting frame. The collection frame includes a first placement plate and a second placement plate arranged up and down. An anti-splash device is provided inside the first placement plate, and a collection device is provided inside the second placement plate. The bottom of the anti-splash device is inserted into the collection device. The collection device includes a primary collection tube and a secondary collection tube arranged outside the primary collection tube. An overflow port is provided near the top of the primary collection tube. A final collection device is provided below the collection device, and the final collection device is fixedly connected to the mounting frame.

[0007] As a further scheme of the utility model: The mounting frame includes a base and mounting columns. Four mounting columns are fixedly connected to the four corners of the base.

[0008] As a further solution of the present utility model: The transmission device includes a U-shaped frame, a first lead screw, a first motor, a first moving block, a first slide bar, a second moving block, a second lead screw, a second motor, and a second slide bar. There are two U-shaped frames, which are respectively fixedly installed between two mounting columns on both sides. A first lead screw is provided inside one of the U-shaped frames. The two ends of the first lead screw are rotatably connected to the mounting columns, and one end thereof passes through the mounting column and is fixedly connected to the output end of the first motor. The first motor is fixedly connected to the mounting column. A first moving block is threadedly connected to the first lead screw, and the first moving block is slidably connected to the inner wall of the U-shaped frame. A first slide bar is provided inside the U-shaped frame on the other side. The two ends of the first slide bar are fixedly connected to the mounting columns. A second moving block is slidably connected to the first slide bar, and the second moving block is slidably connected to the inner wall of the U-shaped frame. A second lead screw and a second slide bar are provided between the first moving block and the second moving block. The second lead screw is rotatably connected to the first moving block and the second moving block. One end of the second lead screw passes through the second moving block and is fixedly connected to the output end of the second motor. The second motor is fixedly connected to the second moving block. The two ends of the second slide bar are fixedly connected to the first moving block and the second moving block.

[0009] As a further solution of the present utility model: The liquid dripping device includes a third moving block, a liquid inlet pipe, a metering pump, and a liquid outlet nozzle. A smooth through hole and a threaded hole are provided inside the third moving block. The third moving block is slidably connected to the second slide bar through the smooth through hole and is threadedly connected to the second lead screw through the threaded hole. A liquid inlet pipe is fixedly connected inside the third moving block. The other end of the liquid inlet pipe is fixedly connected to a metering pump. The metering pump is fixedly connected to the bottom wall of the third moving block. A liquid outlet nozzle is fixedly connected to the lower end of the metering pump.

[0010] As a further solution of the present utility model: The collection rack includes a first placement plate, a second placement plate, legs, and leakage holes. There are four legs. The top ends of the legs are fixedly connected to the first placement plate. A plurality of first mounting holes are provided on the first placement plate for installing a splash-proof device. A second placement plate is provided below the first placement plate. A plurality of second mounting holes are provided on the second placement plate for installing a collection device. The diameter of the first mounting holes is larger than that of the second mounting holes. The second placement plate is fixedly connected to the legs. A plurality of leakage holes are provided on the second placement plate.

[0011] As a further solution of the present utility model: The splash-proof device includes a funnel and a fence. The upper end of the funnel is fixedly connected to a fence, and the fence is annular.

[0012] As a further solution of the present utility model: The upper end of the secondary collection pipe is provided with a flange. The primary collection pipe is lapped on the flange of the secondary collection pipe through a connecting frame, and the connecting frame is made of rubber.

[0013] As a further solution of the utility model: The final-stage collection device includes a diversion box, a diversion plate, a limiting block, a liquid leakage plate, a liquid collection box, a liquid storage box, a first handle, wheels, a slide rail, a box door, and a second handle. A diversion plate is fixedly connected inside the diversion box. A plurality of limiting blocks are fixedly connected to the opposite inner walls of the upper part of the diversion box. A liquid leakage plate is lapped on the limiting blocks. The lower end of the diversion box is fixedly connected to a liquid collection box. A liquid storage box is movably connected inside the liquid collection box. The liquid storage box is arranged below the diversion plate. A first handle is fixedly connected to the front end of the liquid storage box. A plurality of wheels are fixedly connected to both sides of the lower end of the liquid storage box through mounting frames. Two slide rails are arranged opposite to each other on the bottom wall of the liquid collection box. The wheels are slidably connected to the slide rails. A box door is hinged outside the liquid collection box. A second handle is fixedly connected to the box door.

[0014] As a further solution of the utility model: A first rubber ring is arranged between the funnel and the first placement plate. The first rubber ring is movably connected to the funnel and the first placement plate. A second rubber ring is arranged between the secondary collection pipe and the second placement plate. The second rubber ring is movably connected to the secondary collection pipe and the second placement plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: An anti-splash device is provided on a fraction collector that is not prone to liquid accumulation, effectively increasing the receiving area for the fraction liquid and reducing the possibility of liquid splashing outside. At the same time, the enclosure is provided to surround the entire collection area to further prevent the liquid from splashing outside; by providing a primary collection pipe, a secondary collection pipe, and a final-stage collection device, multiple levels of protection are set to prevent the fraction liquid from flowing out. Even if the primary collection pipe overflows, it will flow into the secondary collection pipe through the overflow port. And if the secondary collection pipe overflows excessively, it will flow into the final-stage collection device; the utility model effectively prevents liquid accumulation caused by the splashing and overflow of the fraction liquid, prevents the equipment from being contaminated by the accumulated liquid, and reduces the loss of the fraction liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a fraction collector that is not prone to liquid accumulation.

[0017] Figure 2 It is a structural schematic diagram of another angle of a fraction collector that is not prone to liquid accumulation.

[0018] Figure 3 It is a front view of a fraction collector that is not prone to liquid accumulation.

[0019] Figure 4 It is a cross-sectional view of part A in a fraction collector that is not prone to liquid accumulation.

[0020] Figure 5 It is a cross-sectional view of the final-stage collection device in a fraction collector that is not prone to liquid accumulation.

[0021] In the figure: 1. Mounting frame; 10. Base; 11. Mounting column; 2. Transmission device; 21. U-shaped frame; 22. First lead screw; 23. First motor; 24. First moving block; 25. First slide bar; 26. Second moving block; 27. Second lead screw; 28. Second motor; 29. Second slide bar; 3. Liquid dropping device; 31. Third moving block; 32. Liquid inlet pipe; 33. Metering pump; 34. Liquid outlet nozzle; 4. Collection rack; 41. First placement plate; 411. First mounting hole; 42. Second placement plate; 421. Second mounting hole; 43. Leg; 44. Leakage hole; 5. Splash-proof device; 51. Funnel; 52. Enclosure; 6. Primary collection pipe; 61. Overflow port; 7. Secondary collection pipe; 71. Flange; 8. Final collection device; 81. Diversion box; 82. Diversion plate; 83. Limit block; 84. Liquid leakage plate; 85. Liquid collection box; 86. Liquid storage box; 87. First handle; 88. Wheel; 89. Slide rail; 810. Box door; 811. Second handle; 9. Connecting frame; 12. First rubber ring; 13. Second rubber ring. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1 to 5 , in the embodiment of the present invention, a fraction collector that is not prone to liquid accumulation includes a mounting frame 1. A transmission device 2 is provided on the mounting frame 1. A liquid dropping device 3 is movably connected to the transmission device 2. A collection rack 4 is detachably connected to the mounting frame 1. The collection rack 4 includes a first placement plate 41 and a second placement plate 42 arranged up and down. A splash-proof device 5 is provided inside the first placement plate 41. A collection device is provided inside the second placement plate 42. The bottom of the splash-proof device 5 is inserted into the collection device. The collection device includes a primary collection pipe 6 and a secondary collection pipe 7 provided outside the primary collection pipe 6. An overflow port 61 is provided near the top of the primary collection pipe 6. A final collection device 8 is provided below the collection device. The final collection device 8 is fixedly connected to the mounting frame 1.

[0024] The mounting frame 1 includes a base 10 and a mounting column 11. Four mounting columns 11 are fixedly connected to the four corners of the base 10.

[0025] The transmission device 2 includes a U-shaped frame 21, a first lead screw 22, a first motor 23, a first moving block 24, a first slide bar 25, a second moving block 26, a second lead screw 27, a second motor 28, and a second slide bar 29. There are two U-shaped frames 21, which are respectively fixedly installed between two mounting columns 11 on both sides. The first lead screw 22 is arranged inside one of the U-shaped frames 21. The two ends of the first lead screw 22 are rotatably connected to the mounting column 11, and one end thereof passes through the mounting column 11 and is fixedly connected to the output end of the first motor 23. The first motor 23 is fixedly connected to the mounting column 11. The first moving block 24 is threadedly connected to the first lead screw 22, and the first moving block 24 is slidably connected to the inner wall of the U-shaped frame 21. The first slide bar 25 is arranged inside the other U-shaped frame 21. The two ends of the first slide bar 25 are fixedly connected to the mounting column 11. The second moving block 26 is slidably connected to the first slide bar 25, and the second moving block 26 is slidably connected to the inner wall of the U-shaped frame. A second lead screw 27 and a second slide bar 29 are arranged between the first moving block 24 and the second moving block 26. The second lead screw 27 is rotatably connected to the first moving block 24 and the second moving block 26. One end of the second lead screw 27 passes through the second moving block 26 and is fixedly connected to the output end of the second motor 28. The second motor 28 is fixedly connected to the second moving block 26. The two ends of the second slide bar 29 are fixedly connected to the first moving block 24 and the second moving block 26.

[0026] The liquid dropping device 3 includes a third moving block 31, a liquid inlet pipe 32, a metering pump 33, and a liquid outlet nozzle 34. The third moving block 31 is provided with a smooth through hole and a threaded hole. The third moving block 31 is slidably connected to the second slide bar 29 through the smooth through hole and is threadedly connected to the second lead screw 27 through the threaded hole. The liquid inlet pipe 32 is fixedly connected inside the third moving block 31. The other end of the liquid inlet pipe 32 is fixedly connected to the metering pump 33. The metering pump 33 is fixedly connected to the bottom wall of the third moving block 31. The lower end of the metering pump 33 is fixedly connected to the liquid outlet nozzle 34.

[0027] The collection rack 4 includes a first placement plate 41, a second placement plate 42, legs 43, and leakage holes 44. There are four legs 43. The top ends of the legs 43 are fixedly connected to the first placement plate 41. A number of first mounting holes 411 are provided on the first placement plate 41 for mounting the splash-proof device 5. A second placement plate 42 is arranged below the first placement plate 41. A number of second mounting holes 421 are provided on the second placement plate 42 for mounting the collection device. The diameter of the first mounting holes 411 is larger than the diameter of the second mounting holes 421. The second placement plate 42 is fixedly connected to the legs 43. A number of leakage holes 44 are provided on the second placement plate 42.

[0028] As Figure 4As shown, the splash-proof device 5 includes a funnel 51 and a retaining wall 52. The upper end of the funnel 51 is fixedly connected to the retaining wall 52, and the retaining wall 52 is annular. Setting the funnel 51 above the collection device can increase the receiving area and reduce the possibility of liquid splashing. At the same time, installing the retaining wall 52 can surround the entire collection area to prevent the liquid from splashing outside.

[0029] The upper end of the secondary collection pipe 7 is provided with a flange 71. The primary collection pipe 6 is lapped on the flange 71 of the secondary collection pipe 7 through a connecting frame 9, and the connecting frame 9 is made of rubber. The fraction liquid enters the primary collection pipe 6 through the splash-proof device 5. If the dropping device 3 drops too much fraction liquid, the excess liquid will flow into the secondary collection pipe 7 through the overflow port 61 to prevent the liquid from flowing out. If the liquid in the secondary collection pipe 7 also overflows, the overflowing liquid will flow into the final-stage collection device 8 through the leakage holes 44.

[0030] As Figure 5 shown, the final-stage collection device 8 includes a diversion box 81, a diversion plate 82, a limiting block 83, a liquid leakage plate 84, a liquid collection box 85, a liquid storage box 86, a first handle 87, wheels 88, a slide rail 89, a box door 810, and a second handle 811. The diversion plate 82 is fixedly connected inside the diversion box 81. A plurality of limiting blocks 83 are fixedly connected to the opposite inner walls of the upper part of the diversion box 81. The liquid leakage plate 84 is lapped on the limiting blocks 83. The lower end of the diversion box 81 is fixedly connected to the liquid collection box 85. The liquid storage box 86 is movably connected inside the liquid collection box 85. The liquid storage box 86 is arranged below the diversion plate 82. The front end of the liquid storage box 86 is fixedly connected to the first handle 87. A plurality of wheels 88 are fixedly connected to both sides of the lower end of the liquid storage box 86 through mounting frames. Two slide rails 89 are arranged opposite to each other on the bottom wall of the liquid collection box 85. The wheels 88 are slidably connected to the slide rails 89. The box door 810 is hinged outside the liquid collection box 85, and the second handle 811 is fixedly connected to the box door 810.

[0031] As Figure 4 shown, a first rubber ring 12 is arranged between the funnel 51 and the first placement plate 41. The first rubber ring 12 is movably connected to the funnel 51 and the first placement plate 41. A second rubber ring 13 is arranged between the secondary collection pipe 7 and the second placement plate 42. The second rubber ring 13 is movably connected to the secondary collection pipe 7 and the second placement plate 42. When placing the funnel 51 and the secondary collection pipe 7, the first rubber ring 12 and the second rubber ring 13 are sleeved outside them. The first rubber ring 12 and the second rubber ring 13 are respectively in contact with the first placement plate 41 and the second placement plate 42. The setting of the first rubber ring 12 and the second rubber ring 13 can play a role in shock absorption to prevent the funnel 51 and the collection device from shaking when the fraction liquid falls on the funnel 51 and the collection device, resulting in liquid splashing or flowing out.

[0032] The working principle of the present utility model is as follows: When using a fraction collector that is not prone to liquid accumulation, first place the splash-proof device 5 and the collection device that have been cleaned on the collection rack 4. First, overlap the primary collection tube 6 on the convex edge 71 of the secondary collection tube 7 through the connecting frame 9, and then pass the assembled collection device through the first mounting hole 411 and the second mounting hole 421 in sequence. Then overlap it above the second mounting hole 421, and then overlap the splash-proof device 5 above the first mounting hole 411. After installation, move the collection rack 4 to the mounting rack 1 for fixation; then start the transmission device 2 and the dropping device 3 to collect the fraction liquid. The fraction liquid enters the primary collection tube 6 through the splash-proof device 5. If the dropping device 3 drops too much fraction liquid, the excess liquid will flow into the secondary collection tube 7 through the overflow port 61 to prevent the liquid from flowing out. If the liquid in the secondary collection tube 7 also overflows, the overflowing liquid will flow into the final-stage collection device 8 through the leakage hole 44, and enter the liquid storage box 86 through the liquid leakage plate 84 and the diversion plate 82 in the final-stage collection device 8. In the later stage, the liquid storage box 86 can be taken out by opening the box door 810, and the collected liquid can be recycled to prevent the fraction liquid from overflowing and polluting the equipment, and at the same time, the loss of the fraction liquid can be reduced.

[0033] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A fraction collector that is not prone to liquid accumulation, comprising a mounting frame (1), a transmission device (2) being provided on the mounting frame (1), a dripping device (3) being movably connected to the transmission device (2), and a collecting frame (4) being detachably connected to the mounting frame (1), characterized in that: The collecting rack (4) comprises a first placing plate (41) and a second placing plate (42) which are arranged in an upper and lower manner; a splash-proof device (5) is arranged in the first placing plate (41); a collecting device is arranged in the second placing plate (42); the bottom of the splash-proof device (5) is inserted into the collecting device; the collecting device comprises a primary collecting pipe (6) and a secondary collecting pipe (7) arranged outside the primary collecting pipe (6); an overflow port (61) is arranged near the top of the primary collecting pipe (6); a final collecting device (8) is arranged below the collecting device; and the final collecting device (8) is fixedly connected to the mounting rack (1).

2. A fraction collector that is not prone to liquid accumulation according to claim 1, characterized in that: The mounting frame (1) comprises a base (10) and mounting columns (11), and four mounting columns (11) are fixedly connected to the four corners of the base (10).

3. A fraction collector that is not prone to liquid accumulation according to claim 2, characterized in that: The transmission device (2) comprises a U-shaped frame (21), a first screw rod (22), a first motor (23), a first moving block (24), a first sliding rod (25), a second moving block (26), a second screw rod (27), a second motor (28), and a second sliding rod (29). The U-shaped frame (21) is provided with two screw rods, which are respectively fixedly installed between two mounting posts (11) on both sides. A first screw rod (22) is provided in the U-shaped frame (21) on one side. Both ends of the first screw rod (22) are rotatably connected to the mounting post (11), one end of which passes through the mounting post (11) and is fixedly connected to the output end of the first motor (23). The first motor (23) is fixedly connected to the mounting post (11). A first moving block (24) is threadedly connected to the first screw rod (22). The first moving block (24) is slidably connected to the inner wall of the U-shaped frame (21). The U-shaped frame (21) on the other side is provided with a first slide bar (25), both ends of the first slide bar (25) are fixedly connected to the mounting column (11), a second moving block (26) is slidably connected to the first slide bar (25), the second moving block (26) is slidably connected to the inner wall of the U-shaped frame, a second screw rod (27) and a second slide bar (29) are provided between the first moving block (24) and the second moving block (26), the second screw rod (27) is rotatably connected to the first moving block (24) and the second moving block (26), one end of the second screw rod (27) passes through the second moving block (26) and is fixedly connected to the output end of the second motor (28), the second motor (28) is fixedly connected to the second moving block (26), and both ends of the second slide bar (29) are fixedly connected to the first moving block (24) and the second moving block (26).

4. A fraction collector that is not prone to liquid accumulation according to claim 3, characterized in that: The liquid dripping device (3) comprises a third movable block (31), a liquid inlet pipe (32), a metering pump (33), and a liquid outlet nozzle (34). A smooth through hole and a threaded hole are provided in the third movable block (31). The third movable block (31) is slidably connected to the second sliding rod (29) through the smooth through hole and is threadedly connected to the second screw rod (27) through the threaded hole. The third movable block (31) is fixedly connected to the liquid inlet pipe (32). The other end of the liquid inlet pipe (32) is fixedly connected to the metering pump (33). The metering pump (33) is fixedly connected to the bottom wall of the third movable block (31). The lower end of the metering pump (33) is fixedly connected to the liquid outlet nozzle (34).

5. A fraction collector that is not prone to liquid accumulation according to claim 4, characterized in that: The collecting rack (4) comprises a first placing plate (41), a second placing plate (42), a supporting leg (43) and a leakage hole (44); the supporting leg (43) is provided with four, the top end of the supporting leg (43) is fixedly connected to the first placing plate (41), the first placing plate (41) is provided with a plurality of first mounting holes (411), the first mounting holes (411) are used to install the splash-proof device (5), a second placing plate (42) is provided below the first placing plate (41), the second placing plate (42) is provided with a plurality of second mounting holes (421), the second mounting holes (421) are used to install the collecting device, the diameter of the first mounting hole (411) is greater than the diameter of the second mounting hole (421), the second placing plate (42) is fixedly connected to the supporting leg (43), and the second placing plate (42) is provided with a plurality of leakage holes (44).

6. A fraction collector that is not prone to liquid accumulation according to claim 5, characterized in that: The splash-proof device (5) comprises a funnel (51) and a baffle (52); the upper end of the funnel (51) is fixedly connected to the baffle (52), and the baffle (52) is annular.

7. A fraction collector that is not prone to liquid accumulation according to claim 6, characterized in that: The upper end of the secondary collecting tube (7) is provided with a convex edge (71), and the primary collecting tube (6) is overlapped on the convex edge (71) of the secondary collecting tube (7) through a connecting frame (9), and the connecting frame (9) is made of rubber material.

8. A fraction collector that is not prone to liquid accumulation according to claim 7, characterized in that: The final collecting device (8) comprises a guide box (81), a guide plate (82), a stopper (83), a liquid leakage plate (84), a liquid collecting box (85), a liquid storage box (86), a first handle (87), wheels (88), a slide rail (89), a box door (810), and a second handle (811). The guide plate (82) is fixedly connected inside the guide box (81). A plurality of stoppers (83) are relatively fixedly connected to the inner wall of the upper part of the guide box (81). The stoppers (83) are overlapped with the liquid leakage plate (84). The lower end of the guide box (81) is fixedly connected to A liquid collecting box (85) is provided, wherein a liquid storage box (86) is movably connected inside the liquid collecting box (85), the liquid storage box (86) is arranged below the guide plate (82), a first handle (87) is fixedly connected to the front end of the liquid storage box (86), a plurality of wheels (88) are fixedly connected to both sides of the lower end of the liquid storage box (86) through a mounting frame, two slide rails (89) are arranged opposite to each other on the bottom wall of the liquid collecting box (85), the wheels (88) are slidably connected to the slide rails (89), a box door (810) is hingedly connected to the outside of the liquid collecting box (85), and a second handle (811) is fixedly connected to the box door (810).

9. A fraction collector that is not prone to liquid accumulation according to claim 6, characterized in that: A first rubber ring (12) is provided between the funnel (51) and the first placement plate (41), and the first rubber ring (12) is movably connected to the funnel (51) and the first placement plate (41); a second rubber ring (13) is provided between the secondary collection tube (7) and the second placement plate (42), and the second rubber ring (13) is movably connected to the secondary collection tube (7) and the second placement plate (42).

Images