Automatic sampling device of water quality flow analyzer

Abstract

The utility model discloses an automatic sample introduction device of a water quality flow analyzer, which comprises a rack, a three-axis motion platform, a sampling tube and a liquid blocking device, the three-axis motion platform is arranged on the rack, and the rack is provided with a placing table for placing a sample bottle; the sampling tube is mounted on a Z-axis sliding table of the three-axis moving platform and arranged above the placing table, and the sampling tube moves up and down under the control of the Z-axis sliding table so as to sample a sample bottle; the liquid blocking device is also installed on the Z-axis sliding table of the three-axis moving platform and arranged on one side of the sampling pipe, the liquid blocking device comprises a liquid blocking plate and a micro power device, one end of the liquid blocking plate is fixed to the Z-axis sliding table, the other end of the liquid blocking plate is connected with the micro power device, and the liquid blocking plate rotates by a certain angle under the control of the micro power device; the outlet end of the sampling tube is shielded. According to the utility model, by improving the structure and the material of the sampling tube, the pollution to a sample in the sample bottle is reduced, and the accuracy of water quality detection and analysis is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to water quality analysis technical field, concretely is a kind of automatic sampling device of water quality flow analyzer. BACKGROUND

[0002] When detecting and analyzing different water qualities, different reagents are usually needed to be added, and after the reagents and samples are fully mixed and reacted, they are analyzed. At present, with the continuous improvement of production efficiency requirements, it is very important to realize the automation of water quality analysis to improve the efficiency of water quality detection and analysis, and at the same time, the accuracy of water quality detection and analysis should be ensured. CONTENT OF UTILITY MODEL

[0003] The utility model discloses a kind of automatic sampling device of water quality flow analyzer, by improving the structure and material of sampling tube, reduce the pollution to sample in sample bottle, ensure the accuracy of water quality detection and analysis. To achieve the above purpose, the utility model uses the following technical solutions:

[0004] The utility model discloses a kind of automatic sampling device of water quality flow analyzer, it includes: rack, three-axis motion platform, sampling tube and liquid blocking device, the three-axis motion platform is installed on the rack, and the rack is provided with rest table to place sample bottle.

[0005] The sampling tube is installed on the Z-axis sliding table of the three-axis motion platform, and is set above the rest table, the sampling tube moves up and down under the control of the Z-axis sliding table, to sample bottle is sampled.

[0006] The liquid blocking device is also installed on the Z-axis sliding table of the three-axis motion platform, and is set on one side of the sampling tube, and the liquid blocking device includes: liquid blocking plate and micro power device, one end of the liquid blocking plate is fixed on the Z-axis sliding table, the other end is connected with the micro power device, and a certain angle of rotation is realized under the control of the micro power device, to shield the outlet end of the sampling tube.

[0007] Further, the Z-axis sliding table is provided with a slide rail and a sliding block, the sampling tube is installed on the sliding block and moves up and down;The liquid blocking device is fixedly installed on the back of the end of the slide rail, when the sampling tube completes sampling and moves upward, the liquid blocking device rotates out liquid blocking plate and shields the outlet end of the sampling tube.

[0008] In other embodiments, the Z-axis sliding table is provided with two slide rails and two sliding blocks, the sampling tube and the liquid blocking device are respectively installed on the corresponding sliding blocks, when the sampling tube completes sampling and moves upward, the liquid blocking device moves downward and rotates out liquid blocking plate and shields the outlet end of the sampling tube.

[0009] The micro power device is installed on the Z-axis sliding table through a second protruding column at one end and is provided with an extension connecting shaft at the other end.

[0010] Preferably, the liquid blocking device further comprises an inductor installed on the Z-axis sliding table at the side of the liquid blocking plate, and the liquid blocking plate is provided with a protrusion, and the inductor senses the position of the protrusion.

[0011] Further, the sampling tube comprises an outer tube body, a plurality of inner tube bodies, a carbon fiber tube arranged between the outer tube body and the inner tube bodies, and an upper joint and a lower joint arranged above and below the outer tube body respectively.

[0012] Preferably, the upper joint is provided with a necked structure.

[0013] Preferably, the outer tube body, the inner tube bodies, the upper joint and the lower joint are all PTFE tubes.

[0014] The automatic sampling device of the water quality flow analyzer further comprises a sampling tube cleaning box arranged on one side of the rack, and when the sampling tube completes sampling, the sampling tube is inserted into the sampling tube cleaning box for cleaning.

[0015] Preferably, the placing table is provided with a sample bottle rack to place sample bottles in batches for batch sampling.

[0016] After the above technical scheme is adopted, the utility model has the following effects:

[0017] The utility model discloses a liquid blocking device, which reduces the pollution of the sample in the sample bottle, and improves the structure and material of the sampling tube to ensure the accuracy of water quality detection and analysis. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a perspective view of the utility model.

[0019] Figure 2The internal structure diagram of the three-shaft transmission device.

[0020] Figure 3 The A enlarged view of Figure 2

[0021] Figure 4 The B view of Figure 2

[0022] Figure 5 The explosion decomposition diagram of the liquid blocking device.

[0023] Figure 6 The state diagram of the liquid blocking plate not shielding the sampling tube outlet end.

[0024] Figure 7 The state diagram of the liquid blocking plate shielding the sampling tube outlet end.

[0025] Figure 8 The three-dimensional structure diagram of the sampling tube.

[0026] Figure 9 The top view of the sampling tube.

[0027] Figure 10 The C-C section view of Figure 9

[0028] The D enlarged view of Figure 11 Figure 10

[0029] Figure 12 The E enlarged view of Figure 10

[0030] Main component symbols:

[0031] 1: frame, 11: placing table, 12: sample bottle rack, 2: three-shaft movement platform, 21: Z-shaft sliding table, 3: sampling tube, 31: outer tube body, 32: inner tube body, 33: carbon fiber tube, 34: upper joint, 35: lower joint, 36: through hole, 4: liquid blocking device, 41: liquid blocking plate, 411: first convex column, 412: rotating shaft, 413: liquid containing groove, 414: convex, 42: micro power device, 421: telescopic connecting shaft, 422: second convex column, 43: inductor, 5: sample bottle, 6: sampling tube cleaning box. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail by combining with the drawings and examples.

[0033] As Figures 1 to 5 ​​​​​The utility model discloses an automatic sampling device of water quality flow analyzer, include: frame 1, three -axis motion platform 2, sampling tube 3 and liquid baffle device 4, three -axis motion platform 2 is installed on frame 1, and frame 1 is provided with placing table 11 to place sample bottle 5.

[0034] Sampling tube 3 is installed on the Z-axis sliding table 21 of three -axis motion platform 2, and is set above placing table 11, and sampling tube 3 moves up and down under the control of Z-axis sliding table 21 to sample sample bottle 5.

[0035] Liquid baffle device 4 is also installed on the Z-axis sliding table 21 of three -axis motion platform 2, and is set on one side of sampling tube 3, and liquid baffle device 4 includes: liquid baffle plate 41 and miniature power device 42, one end of liquid baffle plate 41 is fixed on Z-axis sliding table 21, the other end is connected with miniature power device 42, and a certain angle rotation is realized under the control of miniature power device 42 to shield the outlet end of sampling tube 3, prevent the liquid sample remaining on the outlet end of sampling tube 3 from dripping back into sample bottle 5, and pollute the sample in sample bottle 5.

[0036] Combination Figure 6 And Figure 7 As shown in the embodiment, the Z-axis sliding table 21 is provided with a sliding rail and a sliding block, the sampling tube 3 is installed on the sliding block and moves up and down. The liquid baffle device 4 is fixedly installed on the back of the end of the sliding rail, and when the sampling tube 3 completes sampling and moves upward, the liquid baffle device 4 rotates out the liquid baffle plate 41 to shield the outlet end of the sampling tube 3. Among them, the miniature power device 42 is a miniature motor, and one end of the miniature power device 42 is installed on the Z-axis sliding table 21 through a second protruding column 422, and the end portion can rotate along the second protruding column 422; the other end of the miniature power device 42 is provided with a telescopic connecting shaft 421. One end of the liquid baffle plate 41 is installed on the Z-axis sliding table 21 through a rotating shaft 412, and the end portion can rotate along the rotating shaft 412; the other end of the liquid baffle plate 41 is provided with a first protruding column 411, and the first protruding column 411 is clamped in the telescopic connecting shaft 421.

[0037] When the telescopic connecting shaft of the miniature power device 42 performs telescopic action, one end portion thereof rotates slightly around the second protruding column 422, and the other end portion acts on the liquid baffle plate 41. The first protruding column 411 at the end portion of the liquid baffle plate 41 rotates along the rotating shaft 412 under the limiting pulling action of the telescopic connecting shaft 421 of the miniature power device 42, so that the liquid baffle plate 41 realizes two states of rotating out or retracting. As Figure 6 In the retracted state of the liquid baffle plate 41, the sampling tube 3 extends normally to sample. As Figure 7The liquid blocking plate 41 is turned out, and the sampling tube 3 is moved to the retracted state along the Z-axis sliding table 21, the liquid blocking plate 41 is located below the sampling tube 3 and is turned out below the sampling tube 3 to shield the sampling tube 3, meanwhile, the liquid blocking plate 41 is provided with a liquid containing groove 413 to contain the residual liquid dripping on the sampling tube 3 to prevent the residual liquid from falling into the sample bottle 5 on the placing table 11.

[0038] As shown in Figure 5 In the embodiment, one side of the liquid blocking plate 41 is provided with an inductor 43, the inductor 43 is installed on the Z-axis sliding table 21, and the liquid blocking plate 41 is provided with a protrusion 414, the inductor 43 senses the position of the protrusion 414 to realize the sensing of the position of the liquid blocking plate 41. The inductor 43 is a displacement sensor such as an existing capacitive proximity switch, a photoelectric proximity switch and the like.

[0039] In other embodiments, the Z-axis sliding table 21 is provided with two sliding rails and two sliding blocks, the sampling tube 3 and the liquid blocking device 4 are respectively installed on the corresponding sliding blocks, when the sampling tube 3 completes the sampling upward movement, the liquid blocking device 4 moves downward and rotates out the liquid blocking plate 41 to shield the outlet end of the sampling tube 3. And in other embodiments, the miniature power device 42 can also be a miniature cylinder.

[0040] As shown in Figures 8 to 12 The sampling tube 3 comprises an outer tube body 31, a plurality of inner tube bodies 32, a carbon fiber tube 33 arranged between the outer tube body 31 and the inner tube body 32, and an upper joint 34 and a lower joint 35 respectively arranged above and below the outer tube body 31. The upper joint 34 and the lower joint 35 are both provided with a plurality of through holes 36, and the two ends of the inner tube body 32 are connected with the through holes 36 of the upper joint 34 and the lower joint 35 respectively. Among them, the carbon fiber tube 33 has high hardness, which can ensure the strength and perpendicularity of the sampling tube 3.

[0041] In the embodiment, the upper part of the upper joint 34 adopts a necked structure, which can make the upper joint 34 basically flush at the connection when connected with the external conveying hose, and will not increase the resistance in the conveying process. And in the embodiment, the outer tube body 31, the inner tube body 32, the upper joint 34 and the lower joint 35 all adopt PTFE tube, which can reduce the residual liquid dripping on the sampling tube to a certain extent.

[0042] In addition, in the embodiment, the automatic sampling device of the water quality flow analyzer further comprises a sampling tube cleaning box 6, the sampling tube cleaning box 6 is arranged on one side of the rack 1, and the sampling tube 3 is cleaned after completing sampling by being inserted into the sampling tube cleaning box 6. At the same time, the placing table 11 is provided with a sample bottle rack 12 to batch place the sample bottles 5 for batch sampling.

[0043] The above merely describes a preferred embodiment of the present application, and any changes or replacements within the technical scope of the present application conceived by any person skilled in the art should be encompassed in the protection scope of the present application.

Claims

1. An automatic sampling device for a water quality flow analyzer, characterized by, The utility model relates to a kind of liquid sampling device, including: Rack (1), three-axis motion platform (2), sampling tube (3) and liquid blocking device (4), the three-axis motion platform (2) is installed on the rack (1), and the rack (1) is provided with placement table (11) to place sample bottle (5); The sampling tube (3) is installed on the Z-axis sliding table (21) of the three-axis motion platform (2), and is arranged above the placement table (11), the sampling tube (3) is controlled under the Z-axis sliding table (21) and moves up and down, to sample bottle (5) is sampled; The liquid blocking device (4) is also installed on the Z-axis sliding table (21) of the three-axis motion platform (2), and is arranged on the side of the sampling tube (3), and the liquid blocking device (4) includes: liquid blocking plate (41) and micro power device (42), the liquid blocking plate (41) one end is fixed on the Z-axis sliding table (21), the other end is connected with the micro power device (42), and a certain angle is rotated under the control of the micro power device (42), to shield the outlet end of the sampling tube (3).

2. An automatic sampling device for a water quality flow analyzer as defined in claim 1, characterized in that: The Z-axis sliding table (21) is provided with a slide rail and a slider, the sampling tube (3) is installed on the slider and moves up and down;The liquid blocking device (4) is fixedly installed on the back of the end of the slide rail, when the sampling tube (3) completes sampling upward movement, the liquid blocking device (4) rotates out the liquid blocking plate (41) to shield the outlet end of the sampling tube (3).

3. An automatic sampling device for a water quality flow analyzer as defined in claim 1, characterized in that: The Z-axis sliding table (21) is provided with two slide rails and two sliders, the sampling tube (3) and the liquid blocking device (4) are installed on the corresponding sliders respectively, when the sampling tube (3) completes sampling upward movement, the liquid blocking device (4) moves downward and rotates out the liquid blocking plate (41) to shield the outlet end of the sampling tube (3).

4. An automatic sampling device for a water quality flow analyzer according to any one of claims 1 to 3, characterized in that: One end of the micro power device (42) is installed on the Z-axis sliding table (21) through the second protruding column (422), the other end is provided with telescopic connecting shaft (421);One end of the liquid blocking plate (41) is installed on the Z-axis sliding table (21) through the rotating shaft (412), the other end is provided with a first protruding column (411), the first protruding column (411) is embedded in the telescopic connecting shaft (421), the liquid blocking plate (41) rotates out or retracts around the rotating shaft (412) under the action of the micro power device (42);Meanwhile, the liquid blocking plate (41) is provided with liquid containing groove (413) to contain residual liquid dripping from the sampling tube (3).

5. An automatic sampling device for a water quality flow analyzer as defined in claim 4, characterized in that: The liquid blocking device (4) further includes: inductor (43), the inductor (43) is installed on the Z-axis sliding table (21) and located on the side of the liquid blocking plate (41), and the liquid blocking plate (41) is provided with a protrusion (414), the inductor (43) senses the position of the protrusion (414).

6. An automatic sampling device for a water quality flow analyzer according to any one of claims 1-3, characterized in that: The sampling tube (3) comprises an outer tube body (31), a plurality of inner tube bodies (32), a carbon fiber tube (33) arranged between the outer tube body (31) and the inner tube bodies (32), and an upper joint (34) and a lower joint (35) respectively arranged above and below the outer tube body (31). The upper joint (34) and the lower joint (35) are each provided with a plurality of through holes (36), and the two ends of the inner tube body (32) are respectively connected with the through holes (36) of the upper joint (34) and the lower joint (35).

7. An automatic sampling device for a water quality flow analyzer as defined in claim 6, characterized in that: The upper joint (34) is provided with a necked structure above.

8. An automatic sampling device for a water quality flow analyzer as defined in claim 6, wherein: The outer tube body (31) and the inner tube body (32) and the upper joint (34) and the lower joint (35) are all made of PTFE tube.

9. An automatic sampling device for a water quality flow analyzer according to any one of claims 1-3, characterized in that: Further comprising: A sampling tube cleaning box (6) is arranged on one side of the rack (1), and when the sampling tube (3) completes sampling, it is inserted into the sampling tube cleaning box (6) for cleaning.

10. An automatic sampling device for a water quality flow analyzer according to any one of claims 1-3, characterized in that: A sample bottle rack (12) is arranged on the placing table (11) to batch place sample bottles (5) for batch sampling.

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