Automatic sample adding device of water quality analyzer

Abstract

The utility model discloses an automatic sample adding device of a water quality analyzer, which relates to the technical field of automatic sample adding of the water quality analyzer and comprises a box body, a transverse guide rail and a longitudinal guide rail are arranged in the box body, and the longitudinal guide rail drives two arc-shaped plates to move in the vertical direction to adapt to clamping and fixing of test tubes with different heights. The transverse guide rail drives the rectangular frame to horizontally move and slide out of the box body, a larger operation space is provided, test tubes can be rapidly clamped and fixed, and the automatic sample adding efficiency is improved; the two symmetrical threaded rods in threaded connection with the rectangular plate rotate to drive the two arc-shaped plates to reciprocate, and concentric circles with different diameters are formed between the arc-shaped plates; the sample adding mechanism is arranged at the upper end of the box body, and a supporting plate moving in the X direction and the Y direction is arranged to drive the sample adding mechanism to horizontally and vertically move in a reciprocating mode, so that the sample adding device is convenient to use, and the sample adding efficiency is improved. The purpose of automatically adding reagents into each test tube is achieved through a needle head and a liquid pump on the sample adding mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to water quality analysis instrument automatic sampling technical field, concretely relates to a water quality analysis instrument automatic sampling device. BACKGROUND

[0002] With the acceleration of industrial globalization and urbanization, various pollutants are continuously discharged into water bodies. The indiscriminate discharge of industrial wastewater, direct discharge of domestic sewage without treatment and other problems are seriously threatening the quality of water resources. When analyzing and detecting the quality of polluted water, the water quality analysis instrument takes more samples and takes a long time during sampling. In order to improve the sampling efficiency and avoid the error caused by manual sampling, the automatic sampling device needs to be used together to improve the sampling efficiency and thus improve the water quality analysis efficiency.

[0003] The automatic sampling device can be seamlessly connected with the water quality analysis instrument to realize fully automatic operation from water sample collection, sampling, analysis to data output, greatly improving the efficiency and quality of water quality analysis work.

[0004] In actual use, the diameter and height of the test tube rack of the traditional water quality analysis instrument cannot be flexibly adjusted, different sizes of test tubes cannot be placed, only test tubes of specific specifications can be used for sampling, the selection range of test tubes is limited, the procurement cost is increased, the accuracy of analysis data is reduced, and the water quality analysis instrument has poor versatility and compatibility in actual use. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a water quality analysis instrument automatic sampling device, and solves the following technical problems: in actual use, the diameter and height of the test tube rack of the traditional water quality analysis instrument cannot be flexibly adjusted, different sizes of test tubes cannot be placed, only test tubes of specific specifications can be used for sampling, the selection range of test tubes is limited, the procurement cost is increased, the accuracy of analysis data is reduced, and the water quality analysis instrument has poor versatility and compatibility in actual use.

[0006] The purpose of the utility model can be realized by the following technical scheme:

[0007] A water quality analysis instrument automatic sampling device, comprising a box body, a fixing mechanism is arranged at the bottom of the box body, the fixing mechanism is used for clamping and fixing test tubes of different heights or different diameters, the fixing mechanism comprises symmetrically arranged threaded rods, arc-shaped plates are fixedly connected to the ends of the two threaded rods, a support plate moving along the X and Y directions is arranged at the upper end of the box body, a sampling mechanism is fixedly arranged on the support plate, and the sampling mechanism is used for automatically sampling the clamped and fixed test tubes.

[0008] As a further scheme of the utility model: the fixed mechanism includes the rectangular frame that is symmetrically arranged in the inside of the box body, the middle part of two rectangular frames is provided with the second longitudinal guide rail in vertical, two second longitudinal guide rails are slidably connected with the rectangular plate, the middle part of the rectangular plate is provided with the through hole, the both ends of the rectangular plate are screw connected with a plurality of threaded rods, and the lower end of the rectangular frame is fixedly provided with the limiting block.

[0009] As a further scheme of the utility model: the bottom of the box body is provided with a plurality of guide grooves in array, and the inner side wall of the guide groove is fixedly provided with a rubber pad.

[0010] As a further scheme of the utility model: the bottom of the box body is symmetrically provided with the second horizontal guide rail, the L-shaped plate is slidably arranged on the second horizontal guide rail, and the upper surface of the L-shaped plate is slidably connected with the rectangular plate.

[0011] As a further scheme of the utility model: the inner side wall of two arc-shaped plates is fixedly provided with a silica gel pad.

[0012] As a further scheme of the utility model: the sample adding mechanism includes a sample adding box fixedly arranged on the supporting plate, a sample adding cylinder fixedly sleeved in the inside of the sample adding box, a needle fixedly connected to the lower end of the sample adding cylinder, a liquid pump fixedly connected to the upper end of the sample adding cylinder, a hose fixedly connected to one end of the liquid pump, and a valve connected to one end of the hose.

[0013] As a further scheme of the utility model: one side of the box body is symmetrically provided with a box door, a sealing strip is arranged between the box door and the box body, and a plurality of bases are symmetrically fixedly arranged at the bottom of the box body.

[0014] The utility model discloses beneficial effects are as follows:

[0015] (1) the utility model is provided with horizontal guide rail and longitudinal guide rail in the box body, and the longitudinal guide rail drives the rectangular plate to reciprocate in vertical direction, thereby driving two arc-shaped plates to reciprocate, to adapt to the test tube sample adding analysis of different heights, and the horizontal guide rail drives the rectangular frame to move horizontally and slide out of the box body, to provide greater clamping and fixing space, to facilitate the clamping and fixing of test tube quickly, and the two threaded rods that are symmetrically screw connected on the rectangular plate drive two arc-shaped plates to reciprocate, and different diameter concentric circles are formed between two arc-shaped plates, to adapt to the test tube sample adding analysis of different diameters, and the adaptability of the sample adding device is improved.

[0016] (2) the utility model is provided with a sample adding mechanism on the upper end of the box body, the needle and liquid pump on the sample adding mechanism are driven to move horizontally and vertically through the supporting plate that moves along X, Y direction, to realize the purpose of adding reagent to each test tube arranged in array quickly, and the efficiency of sample adding is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model makes further illustration in combination with the drawings.

[0018] Figure 1 It is the internal structure schematic diagram of the utility model whole;

[0019] Figure 2 It is the overhead structure schematic diagram of the utility model fixed assembly;

[0020] Figure 3 It is the side structure schematic diagram of the utility model fixed assembly;

[0021] Figure 4 It is the internal structure schematic diagram of the utility model sample adding assembly;

[0022] Figure 5 It is the structure schematic diagram of the utility model box door.

[0023] In the drawing: 1, box body;2, fixed mechanism;3, threaded rod;4, arc plate;5, first horizontal guide rail;6, first vertical guide rail;7, support plate;8, sample adding mechanism;9, rectangular frame;10, second vertical guide rail;11, rectangular plate;12, through hole;13, limit block;14, guide slot;15, rubber pad;16, second horizontal guide rail;17, L-shaped plate;18, silica gel pad;19, sample adding box;20, sample adding cylinder;21, needle;22, liquid pump;23, hose;24, valve;25, box door;26, sealing strip;27, base. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0025] Embodiment one: please refer to Figures 1-3As shown, the utility model of a kind of water quality analysis instrument automatic sample adding device, including box 1, the bottom of box 1 is provided with fixed mechanism 2, the fixed mechanism 2 is used to carry out the quick axial fixation of test tube of different diameters or different heights, to facilitate subsequent automatic sample adding, the fixed mechanism 2 includes the screw rod 3 of symmetrical arrangement, the end of two screw rod 3 is fixedly connected with arc plate 4, two arc plate 4 forms the concentric circle of different diameter size, to this to hold different diameter test tube and carry out sample adding analysis, improve the adaptability of equipment, the upper end of box 1 is transversely fixed and is provided with first horizontal guide rail 5, first horizontal guide rail 5 is slidably connected with first longitudinal guide rail 6, first horizontal guide rail 5, first longitudinal guide rail 6 are slidably realized by servo motor driving screw or cylinder piston rod, the reciprocating motion of first longitudinal guide rail 6 is slidably provided with support plate 7 on, the support plate 7 is fixedly provided with sample adding mechanism 8 on, the sample adding mechanism 8 is used to carry out automatic sample adding to clamped fixed test tube, the support plate 7 can reciprocate on first horizontal guide rail 5, first longitudinal guide rail 6 in horizontal direction or vertical direction, to drive sample adding mechanism 8 reciprocate in horizontal direction or vertical direction, can realize the quick automatic sample adding of different test tube.

[0026] The fixed mechanism 2 includes the rectangular frame 9 of symmetrical contact setting on the inner side wall of box 1, the rectangular frame 9 is connected with the inner side wall of box 1, the middle part of two rectangular frames 9 is provided with second longitudinal guide rail 10 in vertical direction, the reciprocating motion of second longitudinal guide rail 10 is slidably realized by servo motor driving screw or cylinder piston rod, two second longitudinal guide rails 10 are slidably connected with rectangular plate 11, the rectangular plate 11 can reciprocate in vertical direction of second longitudinal guide rail 10, to drive two arc plates 4 to move up and down, to adapt to the clamping of test tubes of different heights, improve the versatility and compatibility of instrument equipment, the middle part of rectangular plate 11 is provided with through-hole 12, the through-hole 12 is used for inserting test tube and carrying out sample adding analysis, the two ends of rectangular plate 11 are threadedly connected with a plurality of screw rods 3, the screw rod 3 is fixedly connected with arc plate 4 by penetrating from one end of rectangular plate 11 into through-hole 12, rotating screw rod 3 drives arc plate 4 to move, inserting sample adding test tube in the middle of two arc plates 4, the lower end of rectangular frame 9 is fixedly provided with limit block 13, the limit block 13 is used to limit the downward position of rectangular plate 11.

[0027] The bottom of box 1 is provided with guide groove 14 corresponding to the center of two arc plates 4 directly below rectangular plate 11, the guide groove 14 is used for initially placing test tube, transition before clamping, to avoid test tube rolling or pouring, the inner side wall of guide groove 14 is fixedly provided with rubber pad 15, the rubber pad 15 is used for protecting test tube, to avoid scratch or damage caused by hard material directly contacting test tube wall.

[0028] The bottom of the box 1 is symmetrically provided with a second transverse guide rail 16, which is driven to slide by a servo motor or a cylinder piston rod to realize its reciprocating sliding, and an L-shaped plate 17 is slidably arranged on the second transverse guide rail 16, the upper surface of the L-shaped plate 17 is slidably connected with the lower end of the rectangular plate 11, and the rectangular plate 11 can move horizontally and reciprocally on the L-shaped plate 17, one end of the rectangular plate 11 slides out of the box 1, so as to provide a space for quickly clamping and fixing the test tube.

[0029] The inner side walls of the two arc-shaped plates 4 are fixedly provided with silica gel pads 18, which play a buffering role and prevent the test tube from being damaged by clamping.

[0030] In summary, in the automatic sample adding device of the water quality analysis instrument, the operator drives the second transverse guide rail 16 to move reciprocally by a servo motor or a cylinder piston rod to slide, the second transverse guide rail 16 slides the rectangular frame 9 out of the box 1 to provide a space for clamping and fixing the test tube, the rectangular frame 9 drives the rectangular plate 11 to move horizontally, so as to move the fixing mechanism 2 out of the box 1, the rotating threaded rod 3 drives the two arc-shaped plates 4 to move reversely, the two arc-shaped plates 4 form concentric circles with different diameters between them, which are suitable for analyzing and adding samples of test tubes with different diameters, the test tube is inserted between the two arc-shaped plates 4 in sequence, inserted into the guide groove 14 at the bottom of the box 1 through the through hole 12 for temporary fixing before clamping, the rubber pad 15 arranged on the inner side wall of the guide groove 14 avoids scratching or damaging the test tube by directly contacting hard materials, at this time, the rectangular plate 11 is driven to move up and down by the second longitudinal guide rail 10 to adjust the height of the two arc-shaped plates 4 to adapt to the clamping and fixing of test tubes with different heights, the limiting block 13 is used to limit the downward position of the rectangular plate 11 to avoid collision with the guide groove 14 during the downward movement of the rectangular plate 11, after the height adjustment, the rotating threaded rod 3 drives the two arc-shaped plates 4 to clamp and fix the test tube, the silica gel pad 18 arranged on the inner side wall of the two arc-shaped plates 4 provides a buffering role to avoid damaging the side wall of the test tube during the rotating clamping process, and after the rotating clamping is completed, the fixing mechanism 2 is moved back into the box 1 by the second transverse guide rail 16 for subsequent sample adding operation.

[0031] Example two: on the basis of example one, please refer to Figures 4-5As shown, the sample adding mechanism 8 includes a sample adding box 19 fixedly arranged on the support plate 7, the support plate 7 drives the sample adding mechanism 8 to reciprocate in the horizontal direction or the vertical direction, the movement in the horizontal direction can quickly add samples to different test tubes, the movement in the vertical direction can quickly add samples to test tubes of different heights, a sample adding cylinder 20 is fixedly sleeved in the sample adding box 19, a needle 21 is fixedly connected to the lower end of the sample adding cylinder 20, a liquid pump 22 is fixedly connected to the upper end of the sample adding cylinder 20, one end of the liquid pump 22 is fixedly connected with a hose 23, the hose 23 can ensure that the sample adding mechanism 8 moves in the horizontal direction or the vertical direction, the hose 23 can be stretched or contracted, and the sample adding process can be continuously performed during the movement, and one end of the hose 23 is connected with a valve 24 at the top of the box body 1.

[0032] A box door 25 is symmetrically arranged on one side of the box body 1, the box door 25 is connected with the box body 1 through a hinge, the fixed mechanism 2 can be slid out of the box body 1 to clamp and fix test tubes by opening the box door 25, a sealing strip 26 is arranged between the box door 25 and the box body 1, the sealing strip 26 is used for filling the gap between the box door 25 and the box body 1, and good sealing effect is ensured, and a plurality of bases 27 are fixedly arranged on the bottom of the box body 1.

[0033] After the test tube is clamped and fixed, the support plate 7 is driven by the first transverse guide rail 5 to move horizontally, the sample adding mechanism 8 is driven by the support plate 7 to move horizontally, the sample adding mechanism 8 is moved to the upper side of one end of the test tube, at this time, the external power supply is connected, the liquid pump 22 is started, the sample adding mechanism 8 is lowered through the first longitudinal guide rail 6, liquid is discharged from the needle 21, automatic sample adding to the test tube is realized, after sample adding to one test tube is completed, sample adding to the next test tube is completed by repeating the previous operation, and the purpose of adding reagents to each test tube is achieved.

[0034] The working principle of the water quality analysis instrument automatic sample adding device is as follows: when the water quality analysis instrument automatic sample adding device is used, an operator opens the box door 25, moves the fixed mechanism 2 out of the box body 1, drives the arc-shaped plates 4 to fix the axes of different test tubes by rotating a plurality of threaded rods 3, adjusts the heights of the two arc-shaped plates 4 through the second longitudinal guide rail 10, and adapts to test tubes of different heights, after the test tube is clamped and fixed, the fixed mechanism 2 is slid into the box body 1, the box door 25 is closed, and the clamped test tube is sequentially added by the sample adding mechanism 8, so that the purpose of adding reagents to each test tube is achieved.

[0035] The above describes one embodiment of the utility model in detail, but the content described can only be the preferred embodiment of the utility model and cannot be considered as being used for limiting the implementation range of the utility model. Any equivalent change and improvement made according to the application range of the utility model should still belong to the patent coverage range of the utility model.

Claims

1. A water quality analysis instrument automatic sample adding device, characterized in that, The application relates to a test tube fixing device, which comprises a box (1), the bottom of the box (1) is provided with a fixing mechanism (2) for clamping and fixing test tubes with different heights or diameters, the fixing mechanism (2) comprises symmetrically arranged threaded rods (3), the ends of the two threaded rods (3) are fixedly connected with arc-shaped plates (4), the upper end of the box (1) is provided with a support plate (7) moving along the X and Y directions, the support plate (7) is fixedly provided with a sample adding mechanism (8), and the sample adding mechanism (8) is used for automatically adding samples to the clamped and fixed test tubes.

2. The automatic sampling device for water quality analysis instrument according to claim 1, characterized in that, The fixing mechanism (2) comprises rectangular frames (9) symmetrically arranged in the box (1), the middle portions of the two rectangular frames (9) are vertically provided with second longitudinal guide rails (10), the two second longitudinal guide rails (10) are slidably connected with rectangular plates (11), the middle portions of the rectangular plates (11) are provided with through holes (12), and the two ends of the rectangular plates (11) are threadedly connected with the threaded rods (3); the lower ends of the rectangular frames (9) are fixedly provided with limiting blocks (13).

3. The automatic sampling device for water quality analysis instrument according to claim 1, characterized in that, The bottom of the box (1) is arrayed with a plurality of guide grooves (14), and the inner side walls of the guide grooves (14) are fixedly provided with rubber pads (15).

4. The automatic sampling device for water quality analysis instrument according to claim 1, characterized in that, The bottom of the box (1) is symmetrically provided with second transverse guide rails (16), the second transverse guide rails (16) are slidably provided with L-shaped plates (17), and the upper surfaces of the L-shaped plates (17) are slidably connected with the rectangular plates (11).

5. The automatic sampling device for water quality analysis instrument according to claim 1, characterized in that, The inner side walls of the two arc-shaped plates (4) are fixedly provided with silica gel pads (18).

6. The automatic sampling device for water quality analysis instrument according to claim 1, characterized in that, The sample adding mechanism (8) comprises a sample adding box (19) fixedly arranged on the support plate (7), the inside of the sample adding box (19) is fixedly sleeved with a sample adding cylinder (20), the lower end of the sample adding cylinder (20) is fixedly connected with a needle (21), the upper end of the sample adding cylinder (20) is fixedly connected with a liquid pump (22), one end of the liquid pump (22) is fixedly connected with a hose (23), and one end of the hose (23) is connected with a valve (24).

7. The automatic sampling device for water quality analysis instrument according to claim 1, characterized in that, One side of the box (1) is symmetrically provided with a box door (25), a sealing strip (26) is arranged between the box door (25) and the box (1), and the bottom of the box (1) is symmetrically fixedly provided with a plurality of bases (27).

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