A water filter for analytical equipment

Abstract

The present invention discloses a water path filter for analytical equipment, including an analyzer, wherein a filter box is docked at the upper end of the analyzer, and the filter box is fixedly arranged at the upper end of the analyzer by bolts, and an auxiliary pipeline is penetrated through the side of the filter box, and the interior of the filter box is sequentially provided with a first sieve plate, a second sieve plate and a third sieve plate from top to bottom, and a first anti-blocking mechanism is arranged between the first sieve plate and the inner side of the filter box, and a second anti-blocking mechanism is arranged between the second sieve plate and the auxiliary pipeline. The water path filter for analytical equipment, wherein the interior of the filter box is sequentially provided with a first sieve plate, a second sieve plate and a third sieve plate from top to bottom, and the first sieve plate, the second sieve plate and the third sieve plate can be used to grade and filter impurities of different sizes in the river, thereby reducing the impurities contained in the water body from clogging the detection head arranged inside the analyzer, and ensuring the normal operation of the analytical equipment.

Description

Technical Field

[0001] The invention relates to the technical field of filters, in particular to a water path filter for analytical equipment. Background Art

[0002] Water quality analyzers are mainly used in filter pools or water treatment systems to monitor and analyze water quality in real time to ensure filtering effects and water quality safety. In the process of testing and analyzing water quality in rivers, the water body needs to be filtered to avoid the possibility that impurities in the water body will clog the analysis probe and affect the subsequent analysis results.

[0003] In order to overcome the above defects, prior art 1 (publication number: CN107308706A, Chinese patent published on November 3, 2017) is a positive and negative pressure laboratory water quality analysis sample multi-stage filtration device. It mainly solves the problems of slow filtration speed and poor filtration effect of the existing device. It is characterized in that: the upper reducing filter cylinder and the lower reducing filter cylinder are respectively divided into an upper filter cylinder and a lower filter cylinder, and the upper and lower filter cylinders are connected with a ring A; the bottom ring A of the straight filter cylinder is on the ring A, and a filter membrane A is pressed between the bottom ring A of the straight filter cylinder and the ring A; the bottom ring B of the upper reducing filter cylinder is pressed between the ring A and the filter membrane pressure ring A and the filter membrane B; the bottom ring B of the lower reducing filter cylinder is seated on the bottom ring B of the cylindrical part at the upper end of the funnel body, and the bottom ring B of the upper reducing filter cylinder is pressed between the ring B and the ring B. The multi-stage filtration device for water quality analysis samples in positive and negative pressure laboratories has fast filtration speed and good filtration effect.

[0004] There is also prior art 2 (publication number: CN103316522A, Chinese patent published on 2015-06-03) a filter used in an in-situ feed-type seawater analysis instrument. A filter used in an in-situ feed-type seawater analysis instrument, the upper circular hoop sleeve is connected with the upper end of the middle circular hoop sleeve by wedging, and the lower circular hoop sleeve is connected with the lower end of the middle circular hoop sleeve by wedging; the outer side of the circular ring of the upper circular hoop sleeve and the lower circular hoop sleeve is also provided with a fixing mechanism for fixing the axial direction of the filter. It has the advantages of simple structure, small size, convenient installation and disassembly, high filtration efficiency, long working time, no need to frequently replace the filter membrane, convenient cleaning and maintenance of the filter membrane, convenient and quick replacement of the filter membrane, strong resistance to seawater corrosion, anti-biological adhesion ability, adjustable filtration aperture, installation method, pipeline interface in accordance with national standards, etc.

[0005] Although the existing technologies 1 and 2 filter the water to ensure the normal operation of the analysis equipment, their filtering effect is not high and most of them can only perform a single filtration. At the same time, the filter screen is not provided with a corresponding cleaning mechanism, and the filter screen is prone to clogging.

[0006] Therefore, we propose a water path filter for analytical equipment to solve the above problems. Summary of the invention

[0007] The purpose of the present invention is to provide a water path filter for analytical equipment to solve the problem that the filtering effect of the current market is not high, most of them can only perform single filtration, and the filter screen is not provided with a corresponding cleaning mechanism, and the filter screen is prone to clogging.

[0008] To achieve the above object, the present invention provides the following technical solution: a water filter for analytical equipment, comprising an analyzer, wherein a filter box is disposed at the upper end of the analyzer, and the filter box is fixed to the upper end of the analyzer by bolts, and an auxiliary pipeline is penetrated through the side of the filter box;

[0009] A first sieve plate, a second sieve plate and a third sieve plate are sequentially arranged inside the filter box from top to bottom, and a first anti-blocking mechanism is arranged between the first sieve plate and the inner side of the filter box, and a second anti-blocking mechanism is arranged between the second sieve plate and the auxiliary pipeline, and the second anti-blocking mechanism is provided with a movable shaft, and a third anti-blocking mechanism is arranged between the lower end of the movable shaft and the third sieve plate.

[0010] Preferably, the first anti-blocking mechanism comprises a chute, the chute is arranged at the inner upper end of the filter box, and a slider is nested in the chute, and a first sieve plate is fixedly connected to the inner side of the slider, a linkage shaft is nested in the inner side of the filter box, and a first water wheel is fixedly connected to the linkage shaft, and protrusions are fixedly connected to both ends of the linkage shaft;

[0011] The side of the first screen plate is rotatably connected with a rotating shaft, and a torsion spring is fixedly connected between the side of the rotating shaft and the side of the first screen plate, and a cleaning rotating plate is fixedly connected to the rotating shaft, and a traction rope is fixedly connected between the center of the rotating shaft and the inner wall of the slide groove.

[0012] Preferably, the side of the first sieve plate is in contact with the inner wall of the filter box, and the first sieve plate drives the slider and the slide groove to form a sliding structure through the protrusion.

[0013] Preferably, one end of the traction rope is wound around the rotating shaft, and the rotating shaft forms a rotating structure with the first screen plate through the traction rope, and the rotating shaft forms an elastic structure with the first screen plate through a torsion spring.

[0014] Preferably, the second anti-blocking mechanism comprises a limiting groove, the limiting groove is arranged in the middle of the inner side of the filter box, and the limiting block is nested and connected inside the limiting groove, and a baffle is fixedly connected to the outer side of the limiting block, and a return spring is fixedly connected between the lower end of the baffle and the limiting groove;

[0015] A second sieve plate is fixedly connected between the baffles, and a movable shaft is nested and connected at the center of the second sieve plate. A cleaning rod is fixedly connected to the upper end of the movable shaft, and a second water wheel is fixedly connected to the lower end of the movable shaft.

[0016] Preferably, two baffles are symmetrically arranged about the center point of the auxiliary pipeline, the limiting block forms a sliding structure through the baffle and the limiting groove, and the baffle forms an elastic structure through the return spring and the limiting groove.

[0017] Preferably, the lower side of the cleaning rod is in contact with the upper surface of the screen of the second screen plate, and the edge of the second screen plate is in contact with the inner wall of the filter box, and the movable shaft forms a rotating structure with the second screen plate through the second water wheel.

[0018] Preferably, the third anti-blocking mechanism includes a turntable, which is fixedly connected to the lower end of the movable shaft, and a linkage column is fixedly connected to the lower surface of the turntable, and a movable plate is nested and connected to the outer side of the linkage column, a movable groove is opened on the upper surface of the third screen plate, and a movable block is nested and connected inside the movable groove, and a limiting rod is fixedly connected to the upper surface of the movable block, and the upper end of the limiting rod is nested and connected to the side of the movable plate.

[0019] Preferably, the moving block forms a sliding structure through a limiting rod and a moving groove, the movable plate and the limiting rod form a sliding structure, and the linkage column forms a sliding structure through a rotating disk and the movable plate.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) The first sieve plate, the second sieve plate and the third sieve plate are arranged in sequence from top to bottom inside the filter box. Impurities of different sizes in the river can be graded and filtered through the first sieve plate, the second sieve plate and the third sieve plate, thereby reducing the impurities contained in the water body from clogging the detection head set inside the analyzer, ensuring the normal operation of the analysis equipment;

[0022] (2) When water flows through the first sieve plate, the water plants and long and thin impurities in the water flow can be filtered through the first sieve plate. The potential energy of the water flow will impact the first water wheel. At this time, the first water wheel will rotate and drive the protrusion to rotate through the linkage shaft. The rotation of the protrusion will contact the first sieve plate, so that the first sieve plate drives the slider to slide upward along the inside of the slide groove. When the slider moves upward, it will synchronously contact and pull the traction rope, and the traction rope will drive the rotating shaft to rotate. When the rotating shaft rotates, the rotating shaft will synchronously drive the cleaning rotating plate to rotate and unfold, thereby pushing the water plants and long and thin impurities attached to the outer surface of the first sieve plate to both sides, reducing the possibility of water plants and long and thin impurities blocking the first sieve plate;

[0023] (3) The second sieve plate can perform secondary screening and filtration on the water body. When there are too many impurities in the water body and the second sieve plate is blocked, the second sieve plate cannot filter the water body. The second sieve plate will block the water body. At this time, the water body will push the second sieve plate to move. When the second sieve plate moves, it will drive the limit block to slide inside the limit groove. At this time, the second sieve plate drives the baffle plate to move downward. The baffle plate does not block the end side of the auxiliary pipe. The water body can be continuously discharged downward through the auxiliary pipe for filtering operation;

[0024] (4) When the second screen plate moves downward, it will drive the second water wheel to move downward synchronously through the movable shaft. At this time, the second water wheel is located at the drain outlet of the auxiliary pipe. The potential energy of the water flow will drive the second water wheel to rotate. The second water wheel will synchronously drive the cleaning rod to rotate through the movable shaft, so that the cleaning rod can scrape off the impurities blocked on the second screen plate, reducing the occurrence of blockage of the second screen plate;

[0025] (5) When the movable shaft moves downward, it will synchronously drive the movable plate to move downward along the limit rod, so that the lower surface of the movable plate contacts the upper surface of the third screen plate. When the movable shaft rotates, it will synchronously drive the turntable to rotate. At this time, the linkage column will resist and push the movable plate, so that the movable plate moves. When the movable plate moves, it drives the moving block to slide inside the moving groove. At this time, under the limiting effect of the moving groove, the movable plate can stably move horizontally and scrape and clean the upper surface of the third screen plate, reducing the possibility of blockage of the third screen plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 It is a schematic diagram of a three-dimensional front cross-sectional structure of the present invention;

[0028] Figure 3 It is a schematic diagram of a three-dimensional side cross-sectional structure of the present invention;

[0029] Figure 4 This is a schematic diagram of the three-dimensional structure of the first screen plate of the present invention;

[0030] Figure 5 This is a schematic diagram of the three-dimensional structure of the cleaning rotating plate of the present invention;

[0031] Figure 6 This is a schematic diagram of the three-dimensional structure of the second screen plate of the present invention;

[0032] Figure 7 It is a schematic diagram of the three-dimensional structure of the limiting groove of the present invention;

[0033] Figure 8 This is a schematic diagram of the three-dimensional structure of the third screen plate of the present invention;

[0034] Fig. 9 It is a schematic diagram of the three-dimensional structure of the turntable of the present invention;

[0035] Fig.10 It is a schematic diagram of the three-dimensional structure of the movable plate of the present invention.

[0036] In the figure: 1. analyzer; 2. filter box; 3. auxiliary pipeline; 4. first sieve plate; 5. second sieve plate; 6. third sieve plate; 7. linkage shaft; 8. first water wheel; 9. bump; 10. slider; 11. slideway; 12. traction rope; 13. rotating shaft; 14. cleaning rotating plate; 15. second water wheel; 16. limiting groove; 17. limiting block; 18. baffle; 19. cleaning rod; 20. torsion spring; 21. reset spring; 22. movable shaft; 23. turntable; 24. movable plate; 25. linkage column; 26. moving groove; 27. moving block; 28. limiting rod. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Embodiment 1: Figure 1-Figure 5 The technical solution shown in the figure, the present invention provides the following technical solution: a waterway filter of an analytical device, disclosing a first anti-blocking mechanism, through which the possibility of waterweed and elongated impurities blocking the first sieve plate 4 can be reduced:

[0039] An analyzer 1, a filter box 2 is docked at the upper end of the analyzer 1, and the filter box 2 is fixed at the upper end of the analyzer 1 by bolts, and an auxiliary pipeline 3 is penetrated through the side of the filter box 2, and a first sieve plate 4, a second sieve plate 5 and a third sieve plate 6 are sequentially arranged inside the filter box 2 from top to bottom, and a first anti-blocking mechanism is arranged between the first sieve plate 4 and the inner side of the filter box 2;

[0040] The first anti-blocking mechanism includes a chute 11, which is opened at the inner upper end of the filter box 2, and the slide block 10 is nested and connected inside the chute 11, and the first sieve plate 4 is fixedly connected to the inner side of the slide block 10, the inner side of the filter box 2 is nested and connected to the linkage shaft 7, and the linkage shaft 7 is fixedly connected to the first water wheel 8, and the two ends of the linkage shaft 7 are fixedly connected to the protrusions 9, the side of the first sieve plate 4 is rotatably connected to the rotating shaft 13, and the side of the rotating shaft 13 and the side of the first sieve plate 4 are fixedly connected with a torsion spring. 20, and a cleaning rotating plate 14 is fixedly connected to the rotating shaft 13, a traction rope 12 is fixedly connected between the center of the rotating shaft 13 and the inner wall of the slide groove 11, the side of the first sieve plate 4 is in contact with the inner wall of the filter box 2, and the first sieve plate 4 drives the slider 10 and the slide groove 11 through the protrusion 9 to form a sliding structure, one end of the traction rope 12 is wound around the rotating shaft 13, and the rotating shaft 13 forms a rotating structure with the first sieve plate 4 through the traction rope 12, and the rotating shaft 13 forms an elastic structure with the first sieve plate 4 through the torsion spring 20.

[0041] When water flows through the first sieve plate 4, the water plants and slender impurities inside the water flow can be filtered through the first sieve plate 4, and the potential energy of the water flow will impact the first water wheel 8. At this time, the first water wheel 8 will rotate and drive the protrusion 9 to rotate through the linkage shaft 7. The rotation of the protrusion 9 will contact the first sieve plate 4, so that the first sieve plate 4 drives the slider 10 to slide upward along the inside of the slide groove 11. When the slider 10 moves upward, it will synchronously contact and pull the traction rope 12, and the traction rope 12 will drive the rotating shaft 13 to rotate. When the rotating shaft 13 rotates, the rotating shaft 13 will synchronously drive the cleaning rotating plate 14 to rotate and unfold, thereby pushing the water plants and slender impurities attached to the outer surface of the first sieve plate 4 to both sides, reducing the possibility of the water plants and slender impurities clogging the first sieve plate 4.

[0042] Embodiment 2: Figure 2 , Figure 3 , Figure 6 and Figure 7 The technical solution shown in the figure, the present invention provides the following technical solution: a water path filter for analytical equipment, disclosing a second anti-blocking mechanism that can reduce the occurrence of blockage of the second sieve plate 5:

[0043] The second anti-blocking mechanism includes a limiting groove 16, which is arranged in the middle of the inner side of the filter box 2, and the limiting groove 16 is nested with a limiting block 17, and the outer side of the limiting block 17 is fixedly connected with a baffle 18, and a return spring 21 is fixedly connected between the lower end of the baffle 18 and the limiting groove 16, and a second sieve plate 5 is fixedly connected between the baffles 18, and a movable shaft 22 is nested at the center of the second sieve plate 5, and a cleaning rod 19 is fixedly connected to the upper end of the movable shaft 22, and the movable shaft 22 is fixedly connected to the cleaning rod 19, and the movable shaft 22 is fixedly connected to the cleaning rod 19. The lower end of the shaft 22 is fixedly connected to the second water wheel 15, and two baffles 18 are symmetrically arranged about the center point of the auxiliary pipe 3. The limit block 17 forms a sliding structure with the limit groove 16 through the baffle 18, and the baffle 18 forms an elastic structure with the limit groove 16 through the return spring 21. The lower side of the cleaning rod 19 is in contact with the upper surface of the screen of the second sieve plate 5, and the edge of the second sieve plate 5 is in contact with the inner wall of the filter box 2. The movable shaft 22 forms a rotating structure with the second sieve plate 5 through the second water wheel 15.

[0044] The second sieve plate 5 can perform secondary screening and filtration on the water body. When there are too many impurities in the water body and the second sieve plate 5 is blocked, the second sieve plate 5 cannot filter the water body, and the second sieve plate 5 will block the water body. At this time, the water body will push the second sieve plate 5 to move. When the second sieve plate 5 moves, it will drive the limit block 17 to slide inside the limit groove 16. At this time, the second sieve plate 5 drives the baffle plate 18 to move downward, and the baffle plate 18 does not block the end side of the auxiliary pipe 3. The water body can be continuously discharged downward through the auxiliary pipe 3 for filtering. When the second sieve plate 5 moves downward, it will drive the second water wheel 15 to move downward synchronously through the movable shaft 22. At this time, the second water wheel 15 is located at the drain outlet of the auxiliary pipe 3, and the potential energy of the water flow will drive the second water wheel 15 to rotate. The second water wheel 15 synchronously drives the cleaning rod 19 to rotate through the movable shaft 22, so that the cleaning rod 19 scrapes off the impurities blocked on the second sieve plate 5, thereby reducing the blockage of the second sieve plate 5.

[0045] Embodiment 3: Figure 2 , Figure 3 , Figure 8-Figure 10 The technical solution shown in the figure, the present invention provides the following technical solution: a water path filter of an analytical device, disclosing a third anti-blocking mechanism, through which the third sieve plate 6 can be blocked:

[0046] The third anti-blocking mechanism includes a turntable 23, which is fixedly connected to the lower end of the movable shaft 22, and a linkage column 25 is fixedly connected to the lower surface of the turntable 23, and a movable plate 24 is nested on the outer side of the linkage column 25, a movable groove 26 is opened on the upper surface of the third screen plate 6, and a movable block 27 is nested inside the movable groove 26, and a limiting rod 28 is fixedly connected to the upper surface of the movable block 27, and the upper end of the limiting rod 28 is nested on the side of the movable plate 24, the movable block 27 forms a sliding structure with the movable groove 26 through the limiting rod 28, the movable plate 24 and the limiting rod 28 form a sliding structure, and the linkage column 25 forms a sliding structure with the movable plate 24 through the turntable 23.

[0047] When the movable shaft 22 moves downward, it will synchronously drive the movable plate 24 to move downward along the limiting rod 28, so that the lower surface of the movable plate 24 contacts the upper surface of the third sieve plate 6. When the movable shaft 22 rotates, it will synchronously drive the turntable 23 to rotate. At this time, the linkage column 25 will resist and push the movable plate 24, so that the movable plate 24 moves. When the movable plate 24 moves, it drives the moving block 27 to slide inside the moving groove 26. At this time, under the limiting action of the moving groove 26, the movable plate 24 can stably move laterally and scrape and clean the upper surface of the third sieve plate 6, thereby reducing the possibility of blockage of the third sieve plate 6.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A water path filter for analytical equipment, comprising an analyzer (1), wherein a filter box (2) is disposed at the upper end of the analyzer (1), and the filter box (2) is fixed to the upper end of the analyzer (1) by bolts, and an auxiliary pipeline (3) is penetrated through the side of the filter box (2); It is characterized in that The interior of the filter box (2) is provided with a first sieve plate (4), a second sieve plate (5) and a third sieve plate (6) in order from top to bottom, and a first anti-blocking mechanism is provided between the first sieve plate (4) and the inner side of the filter box (2), and a second anti-blocking mechanism is provided between the second sieve plate (5) and the auxiliary pipe (3), and the second anti-blocking mechanism is provided with a movable shaft (22), and a third anti-blocking mechanism is provided between the lower end of the movable shaft (22) and the third sieve plate (6); the second anti-blocking mechanism comprises a limiting groove (16), the limiting groove (16) is provided in the middle of the inner side of the filter box (2), and the limiting groove (16) is provided with a movable shaft (22). A limit block (17) is nested and connected internally, and a baffle (18) is fixedly connected to the outer side of the limit block (17), and a return spring (21) is fixedly connected between the lower end of the baffle (18) and the limit groove (16); a second sieve plate (5) is fixedly connected between the baffle plates (18), and a movable shaft (22) is nested and connected at the center of the second sieve plate (5), and a cleaning rod (19) is fixedly connected to the upper end of the movable shaft (22), and a second water wheel (15) is fixedly connected to the lower end of the movable shaft (22), and two baffles (18) are symmetrically arranged about the center point of the auxiliary pipeline (3), and the limit block (18) is fixedly connected to the lower end of the second sieve plate (5). 17) A sliding structure is formed by a baffle plate (18) and a limiting groove (16), and the baffle plate (18) and the limiting groove (16) form an elastic structure through a return spring (21), the first anti-blocking mechanism comprises a slide groove (11), the slide groove (11) is arranged at the inner upper end of the filter box (2), and a slider (10) is nested and connected inside the slide groove (11), and a first sieve plate (4) is fixedly connected inside the slider (10), the inner side of the filter box (2) is nested and connected to a linkage shaft (7), and a first water wheel (8) is fixedly connected to the linkage shaft (7), and protrusions are fixedly connected at both ends of the linkage shaft (7). (9); The side of the first sieve plate (4) is rotatably connected to a rotating shaft (13), and a torsion spring (20) is fixedly connected between the side of the rotating shaft (13) and the side of the first sieve plate (4), and a cleaning rotating plate (14) is fixedly connected to the rotating shaft (13), and a traction rope (12) is fixedly connected between the center of the rotating shaft (13) and the inner wall of the slide groove (11), one end of the traction rope (12) is wound around the rotating shaft (13), and the rotating shaft (13) and the first sieve plate (4) form a rotating structure through the traction rope (12), and the rotating shaft (13) and the first sieve plate (4) form an elastic structure through the torsion spring (20).

2. The water path filter of an analytical device according to claim 1, characterized in that: The side of the first screen plate (4) is in contact with the inner wall of the filter box (2), and the first screen plate (4) drives the sliding block (10) and the sliding groove (11) through the protrusion (9) to form a sliding structure.

3. The water path filter of an analytical device according to claim 1, characterized in that: The lower side of the cleaning rod (19) is in contact with the upper surface of the screen of the second screen plate (5), and the edge of the second screen plate (5) is in contact with the inner wall of the filter box (2). The movable shaft (22) forms a rotating structure with the second screen plate (5) through the second water wheel (15).

4. The water path filter of an analytical device according to claim 1, characterized in that: The third anti-blocking mechanism comprises a rotating disk (23), the rotating disk (23) being fixedly connected to the lower end of the movable shaft (22), and a linkage column (25) being fixedly connected to the lower surface of the rotating disk (23), and a movable plate (24) being nested and connected to the outer side of the linkage column (25), and a movable groove (26) being provided on the upper surface of the third screen plate (6), and a movable block (27) being nested and connected inside the movable groove (26), and a limiting rod (28) being fixedly connected to the upper surface of the movable block (27), and the upper end of the limiting rod (28) being nested and connected to the side of the movable plate (24).

5. The water path filter of an analytical device according to claim 4, characterized in that: The moving block (27) forms a sliding structure with the limiting rod (28) and the moving groove (26), the movable plate (24) and the limiting rod (28) form a sliding structure, and the linkage column (25) forms a sliding structure with the rotating disk (23) and the movable plate (24).

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