A fully automatic water quality filtration tester

Abstract

The present invention relates to the technical field of water quality detection, specifically to a fully automatic water quality filter detector, comprising a water quality detector base and a second turntable, the outer wall of the second turntable is rotatably provided with a replacement mechanism for replacing filter paper, the replacement mechanism comprises a first sleeve, the inner wall of the first sleeve is threadedly provided with a second sleeve, and the inner wall of the second sleeve is slidably installed with an air pump for adsorbing filter paper. In the fully automatic water quality filter detector, as the spiral moving track of the filter paper smoothing roller gradually moves downward, the inner contour of the funnel becomes narrower and narrower, so that the filter paper smoothing roller is gradually subjected to a resistance force toward the inner wall of the first sleeve, and water is finally squeezed out of the first through groove provided on the outer wall of the U-shaped frame, sprayed onto the surface of the rotating filter paper smoothing roller, and coated on the filter paper being smoothed by the rotating filter paper smoothing roller surface, so that the filter paper is in a wet state after absorbing water.

Description

Technical Field

[0001] The invention relates to the technical field of water quality detection, in particular to a full-automatic water quality filtering detector. Background Art

[0002] Water quality detector is a professional instrument used to analyze the content of water components. It mainly refers to instruments for measuring BOD, COD, ammonia nitrogen, total phosphorus, total nitrogen, turbidity, PH, dissolved oxygen and other items in water. In order to protect the water environment, it is necessary to strengthen the monitoring of sewage discharge. Water quality detector plays an important role in environmental protection, water quality testing and water resource protection.

[0003] Before testing the sampled water quality, the existing water quality filtration testers on the market will set filter paper at the feed port of the tester to filter out impurities in order to prevent dirt, sand and other impurities in the water sample from entering the tester and causing blockage. The solid impurities in the water quality are filtered out before entering the main body of the tester for testing. However, in the process of replacing the filter paper, the existing water quality testers on the market usually need to be replaced manually. However, during the manual replacement process, sweat on the hands will also stain the surface of the filter paper, and manual replacement of the filter paper can easily lead to hollowing between the filter paper and the inner wall of the feed funnel, resulting in reduced filtration effect. Summary of the invention

[0004] The present invention provides a fully automatic water quality filtration detector, which has the beneficial effects of facilitating automatic replacement of filter paper and making the filter paper and the feed funnel fit more closely, solving the problem mentioned in the above background technology that the existing water quality detectors on the market usually need to be manually replaced during the process of replacing the filter paper. However, during the manual replacement process, sweat on the hands will also be contaminated to the surface of the filter paper, and manual replacement of the filter paper is likely to cause hollowing between the filter paper and the inner wall of the feed funnel, resulting in reduced filtering effect. In order to achieve the above purpose, the present invention provides the following technical solutions: a fully automatic water quality filtration detector, comprising a water quality detector base and a second turntable, the outer wall of the second turntable is rotatably provided with a replacement mechanism for replacing the filter paper, the replacement mechanism comprises a first sleeve, the inner wall of the first sleeve is threadedly provided with a second sleeve, and the inner wall of the second sleeve is slidably provided with an air pump for adsorbing the filter paper;

[0005] The inner wall of the first sleeve is slidably provided with a first smoothing mechanism and a second smoothing mechanism for smoothing the filter paper. The first smoothing mechanism and the second smoothing mechanism both include a first connecting tube, and the first connecting tube is slidably provided on the inner wall of the first sleeve. A fixed frame is fixed at one end of the first connecting tube, and a rolling ball is rotatably provided at one end of the first connecting tube. The outer wall of the rolling ball is fixedly connected to the second connecting tube, and the outer wall of the second connecting tube is fixedly connected to a U-shaped frame. The inner wall of the U-shaped frame is provided with a filter paper smoothing roller for smoothing the filter paper through a horizontal axis rotation.

[0006] As an optional solution of the fully automatic water quality filtration detector described in the present invention, wherein: the first smoothing mechanism further includes a limit block, the limit block is fixedly connected to the end of the first connecting pipe corresponding to the first smoothing mechanism, and the second smoothing mechanism further includes a first arc protrusion, the first arc protrusion is fixedly connected to the end of the first connecting pipe corresponding to the second smoothing mechanism;

[0007] The inner wall of the first sleeve is fixedly connected with a sleeve frame, and two sleeve frames are provided. The two sleeve frames are sleeved on the outer wall of the first connecting pipe, and the inner contour of the sleeve frame matches the outer contour of the first arc protrusion and the limit block;

[0008] The end of the first connecting tube corresponding to the second smoothing mechanism is fixedly connected with a corrugated telescopic rigid tube, and the corrugated telescopic rigid tube is arranged on the inner wall of the first return spring. The inner wall of the corrugated telescopic rigid tube is fixedly connected with a support tube for laterally supporting the corrugated telescopic rigid tube, and the support tube is slidably arranged on the inner wall of the first connecting tube.

[0009] As an optional solution of the fully automatic water quality filtration detector described in the present invention, wherein: the inner wall of the first sleeve is provided with a water storage space;

[0010] The limiting block is connected with the corresponding first connecting pipe, the rolling ball, the second connecting pipe and the water storage space through the second through groove;

[0011] The first arc protrusion is connected with the corresponding first connecting pipe, the rolling ball, the second connecting pipe and the water storage space through the third through groove.

[0012] As an optional solution of the fully automatic water quality filtration detector described in the present invention, wherein: the outer wall of the limit block and the first arc protrusion are fixedly connected with a first return spring, and one end of the first return spring is fixedly connected to the inner wall of the first sleeve;

[0013] The outer wall of the U-shaped frame is provided with a first through groove which is communicated with the second connecting pipe.

[0014] As an optional solution of a fully automatic water quality filtration detector described in the present invention, the outer wall of the fixed frame is provided with a transverse groove for limiting the moving direction of the second connecting tube, the second connecting tube passes through the transverse groove, and the outer wall of the rolling ball is rotatably arranged on the inner wall of the fixed frame.

[0015] As an optional solution of the fully automatic water quality filtration detector described in the present invention, wherein: the inner wall of the first sleeve is provided with a water storage space;

[0016] The inner wall of the first sleeve is provided with a groove, and a ball is rotatably arranged on the inner wall of the groove. The outer wall of the second sleeve is provided with a long pitch thread groove, and the outer wall of the ball is slidably matched with the inner wall of the long pitch thread groove.

[0017] As an optional solution of a fully automatic water quality filtration detector described in the present invention, the output end of the air pump is fixedly connected to an arc head, the outer wall of the arc head is fixedly connected to a guide rod, the end of the second sleeve is provided with a guide groove for guiding the movement of the guide rod, and the end contour of the guide rod is larger than the notch contour of the guide groove.

[0018] As an optional solution of a fully automatic water quality filtration detector described in the present invention, a third sleeve is slidably arranged on the inner wall of the first sleeve, one end of the third sleeve is fixedly connected with a second arc protrusion, the outer wall of the second arc protrusion is arranged in an arc surface, the outer wall of the third sleeve is fixedly connected with a sponge buffer pad, the sponge buffer pad is set to a sponge material, the outer wall of the third sleeve is fixedly connected with a second return spring, and one end of the second return spring is fixedly connected to the outer wall of the first sleeve.

[0019] As an optional solution of a fully automatic water quality filtration tester described in the present invention, a transmission motor is installed on the outer wall of the base of the water quality tester, the output end of the transmission motor is fixedly connected to a transmission shaft, one end of the transmission shaft is fixedly connected to a first turntable, an electric telescopic rod is installed on the outer wall of the first turntable, and the second turntable is fixedly connected to the output end of the electric telescopic rod.

[0020] As an optional solution of the fully automatic water quality filter detector described in the present invention, wherein: the outer wall of the water quality detector base is fixedly connected to the detector body, the input end of the detector body is fixedly connected to the funnel, and the inner wall of the funnel is fixedly connected to the impurity filter net;

[0021] The outer wall of the water quality detector base is fixedly connected to a filter paper storage frame for storing filter paper.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] In the present invention, the fully automatic water quality filtering detector, as the spiral moving trajectory of the filter paper smoothing roller gradually moves downward, the inner contour of the funnel becomes narrower and narrower. Therefore, the filter paper smoothing roller is gradually subjected to a resistance force toward the inner wall of the first sleeve. Water is finally squeezed out from the first through groove opened on the outer wall of the C-shaped frame, sprayed onto the surface of the rotating filter paper smoothing roller, and coated on the filter paper being smoothed by the surface of the rotating filter paper smoothing roller, so that the filter paper is in a moist state after absorbing water.

[0024] In the present invention, in order to synchronize the overall wetness of the filter paper, when the arc-shaped head abuts against the second sleeve and makes it slide along the inner wall of the groove for a certain distance, the filter paper smoothing roller position near the lower end of the first sleeve no longer discharges water, and only the first through groove corresponding to the filter paper smoothing roller near the upper end of the first sleeve discharges water. At this time, the filter paper part at the upper end of the filter paper can be ensured to remain moist, so as to facilitate the next step of filtration.

[0025] In the present invention, a fully automatic water quality filtration detector is provided, which can automatically place filter paper in a funnel and smooth the filter paper after placement. During the smoothing process, bubbles between the filter paper and the inner wall of the funnel are driven away, and during the smoothing process, the surface of the filter paper is wetted with water to make the filter paper fit more closely to the inner wall of the funnel, further increasing the subsequent filtration effect, and after being smoothed to a certain extent, only the upper end of the filter paper can be re-moistened. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0027] Figure 2 It is a front view structural cross-sectional stereogram of the present invention.

[0028] Figure 3 For the present invention Figure 2 A magnified view of the local structure.

[0029] Figure 4 For the present invention Figure 3 A magnified view of the structure in the middle.

[0030] Figure 5 For the present invention Figure 3 Enlarged view of the structure at point B in the middle.

[0031] Figure 6 For the present invention Figure 3 Enlarged view of the structure at point C in the middle.

[0032] Figure 7 It is a schematic diagram of the second sleeve structure of the present invention.

[0033] Figure 8 It is a cross-sectional view of the overall structure of the present invention when viewed from above.

[0034] Fig. 9 It is a cross-sectional view of the first sleeve structure of the present invention.

[0035] Fig.10 For the present invention Fig. 9 Enlarged view of the structure at point D in the middle.

[0036] Fig.11 It is a front cross-sectional view of the first sleeve and its surrounding structure of the present invention.

[0037] Fig.12 It is a schematic structural diagram of the first connecting pipe and its surrounding structure after being subjected to stress.

[0038] Fig.13 For the present invention Fig.11 Enlarged view of the structure at point E in the middle.

[0039] In the figure: 1, water quality detector base; 2, filter paper storage frame; 3, filter paper; 4, transmission motor; 5, transmission shaft; 6, first turntable; 7, electric telescopic rod; 8, second turntable; 9, first sleeve; 10, water storage space; 11, groove; 12, first connecting pipe; 13, first return spring; 14, limit block; 15, fixed frame; 151, transverse groove; 16, U-shaped frame; 17, transverse axis; 18, filter paper smoothing roller; 19, second connecting pipe; 21, first through groove; 22, roller ball; 23, second through groove; 24, first arc protrusion; 25, third through groove; 26, ball bearing; 27, long pitch thread groove; 28, air pump; 29, second sleeve; 30, arc head; 31, guide rod; 32, guide groove; 33, third sleeve; 34, second arc protrusion; 35, sponge cushion; 36, second return spring; 37, detector body; 38, impurity filter; 39, funnel; 141, sleeve frame; 121, corrugated telescopic hard tube; 122, support tube. DETAILED DESCRIPTION

[0040] 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.

[0041] Embodiment 1

[0042] This embodiment is intended to promote the solution of the problem that in the process of replacing the filter paper of the existing water quality detectors on the market, manual replacement is usually required. However, during the manual replacement process, the sweat on the hands of the person will also be contaminated on the surface of the filter paper, and manual replacement of the filter paper is likely to cause hollowing between the filter paper and the inner wall of the feed funnel, resulting in reduced filtration effect. Please refer to Figure 1-Figure 13 A fully automatic water quality filtration detector comprises a water quality detector base 1 and a second turntable 8, wherein the outer wall of the second turntable 8 is rotatably provided with a replacement mechanism for replacing filter paper 3, the replacement mechanism comprises a first sleeve 9, the inner wall of the first sleeve 9 is provided with a second sleeve 29, and the inner wall of the second sleeve 29 is slidably provided with an air pump 28 for adsorbing the filter paper 3;

[0043] The inner wall of the first sleeve 9 is slidably provided with a first smoothing mechanism and a second smoothing mechanism for smoothing the filter paper 3, and the first smoothing mechanism and the second smoothing mechanism both include a first connecting tube 12, and the first connecting tube 12 is slidably provided on the inner wall of the first sleeve 9, a fixing frame 15 is fixed to one end of the first connecting tube 12, a rolling ball 22 is rotatably provided to one end of the first connecting tube 12, a second connecting tube 19 is fixedly connected to the outer wall of the rolling ball 22, a U-shaped frame 16 is fixedly connected to the outer wall of the second connecting tube 19, and a filter paper smoothing roller 18 for smoothing the filter paper 3 is rotatably provided on the inner wall of the U-shaped frame 16 through a transverse axis 17;

[0044] The first smoothing mechanism further includes a limit block 14, which is fixedly connected to the end of the first connecting pipe 12 corresponding to the first smoothing mechanism, and the second smoothing mechanism further includes a first arc protrusion 24, which is fixedly connected to the end of the first connecting pipe 12 corresponding to the second smoothing mechanism;

[0045] The inner wall of the first sleeve 9 is fixedly connected with a sleeve frame 141. Two sleeve frames 141 are provided. The two sleeve frames 141 are sleeved on the outer wall of the first connecting pipe 12. The inner contour of the sleeve frame 141 matches the outer contour of the first arc protrusion 24 and the limit block 14.

[0046] The end of the first connecting tube 12 corresponding to the second smoothing mechanism is fixedly connected with a corrugated telescopic hard tube 121, which is arranged on the inner wall of the first return spring 13. The inner wall of the corrugated telescopic hard tube 121 is fixedly connected with a support tube 122 for laterally supporting the corrugated telescopic hard tube 121, and the support tube 122 is slidably arranged on the inner wall of the first connecting tube 12;

[0047] The inner wall of the first sleeve 9 is provided with a water storage space 10;

[0048] The limiting block 14 is connected to the corresponding first connecting pipe 12, the rolling ball 22, the second connecting pipe 19 and the water storage space 10 through the second through groove 23;

[0049] The first arc protrusion 24 is connected to the corresponding first connecting pipe 12, the rolling ball 22, the second connecting pipe 19 and the water storage space 10 through the third through groove 25;

[0050] The outer walls of the limit block 14 and the first arc protrusion 24 are both fixedly connected with a first return spring 13, and one end of the first return spring 13 is fixedly connected to the inner wall of the first sleeve 9;

[0051] The outer wall of the U-shaped frame 16 is provided with a first through groove 21 which is connected to the second connecting pipe 19;

[0052] The outer wall of the fixed frame 15 is provided with a transverse groove 151 for limiting the moving direction of the second connecting tube 19. The second connecting tube 19 passes through the transverse groove 151. The outer wall of the rolling ball 22 is rotatably arranged on the inner wall of the fixed frame 15.

[0053] The inner wall of the first sleeve 9 is provided with a groove 11, and a ball 26 is rotatably arranged on the inner wall of the groove 11. The outer wall of the second sleeve 29 is provided with a long pitch thread groove 27, and the outer wall of the ball 26 is slidably matched with the inner wall of the long pitch thread groove 27.

[0054] The output end of the air pump 28 is fixedly connected with an arc head 30, the outer wall of the arc head 30 is fixedly connected with a guide rod 31, and the end of the second sleeve 29 is provided with a guide groove 32 for guiding the movement of the guide rod 31, and the end profile of the guide rod 31 is larger than the notch profile of the guide groove 32;

[0055] The inner wall of the first sleeve 9 is slidably provided with a third sleeve 33, one end of the third sleeve 33 is fixedly connected with a second arc protrusion 34, the outer wall of the second arc protrusion 34 is arranged in an arc surface, the outer wall of the third sleeve 33 is fixedly connected with a sponge buffer pad 35, the sponge buffer pad 35 is arranged with a sponge material, the outer wall of the third sleeve 33 is fixedly connected with a second return spring 36, one end of the second return spring 36 is fixedly connected with the outer wall of the first sleeve 9;

[0056] A transmission motor 4 is installed on the outer wall of the water quality detector base 1, and a transmission shaft 5 is fixedly connected to the output end of the transmission motor 4. One end of the transmission shaft 5 is fixedly connected to a first turntable 6. An electric telescopic rod 7 is installed on the outer wall of the first turntable 6. The second turntable 8 is fixedly connected to the output end of the electric telescopic rod 7.

[0057] The outer wall of the water quality detector base 1 is fixedly connected with a detector body 37, the input end of the detector body 37 is fixedly connected with a funnel 39, and the inner wall of the funnel 39 is fixedly connected with an impurity filter 38;

[0058] The outer wall of the water quality detector base 1 is fixedly connected to a filter paper storage frame 2 for storing filter paper 3 .

[0059] In this embodiment: Before the existing water quality filtration detector on the market detects the sampled water quality, in order to prevent impurities such as mud, sand and stones in the water sample from entering the detector and clogging it, a filter paper is set at the feed port of the detector to filter the impurities, so that the solid impurities in the water quality are filtered before entering the detector body for detection. However, in the process of replacing the filter paper, the existing water quality detector on the market usually needs to be manually taken and replaced. However, during the manual replacement process, the sweat on the hands of the person will also be contaminated to the surface of the filter paper, and the manual replacement of the filter paper is likely to cause hollowing between the filter paper and the inner wall of the feed funnel, resulting in reduced filtering effect;

[0060] Therefore, in order to avoid the above situation, when the water quality detector is used, when it is necessary to place filter paper 3 on the inner wall of the funnel 39, the transmission motor 4 is first started. After the transmission motor 4 is started, the transmission shaft 5 at the output end is rotated. During the rotation of the transmission shaft 5, the first turntable 6 at its end is synchronously rotated. During the rotation of the first turntable 6, the electric telescopic rod 7 is rotated in a circle, so that the vertical position of the electric telescopic rod 7 is just above the filter paper storage frame 2. At this time, the electric telescopic rod 7 is started. After the electric telescopic rod 7 is started, it moves downward synchronously with the second turntable 8, the first sleeve 9 and the arc head 30 protruding from the end of the first sleeve 9 until the end of the arc head 30 is close to the filter paper storage frame 2. The surface of the uppermost filter paper 3 in the paper storage frame 2 is sucked by the air pump 28. At this time, the air pump 28 is started. After the air pump 28 is started, the output end begins to suck the surface of the uppermost filter paper 3 through the opening at the end of the arc head 30, and then the electric telescopic rod 7 is started. The electric telescopic rod 7 moves up with the second turntable 8 and the first sleeve 9. At this time, the arc head 30 sucking the filter paper 3 moves up synchronously, and then the transmission motor 4 is started to control the circumferential position of the electric telescopic rod 7, so that it stops after being at the longitudinal center line position of the funnel 39, and then the electric telescopic rod 7 is started. After the electric telescopic rod 7 is started, it moves down with the adsorbed filter paper 3 until the outer wall of the filter paper 3 touches the surface of the impurity filter screen 38 on the inner wall of the filter paper 3. At this time, the state of the filter paper 3 is as shown in the attached Figure 1 In the state shown, the filter paper 3 is set to be attached Figure 1 In the style shown, the center of the filter paper 3 has a circle of annular folds, and the outermost circle of the filter paper 3 is evenly cut to prevent the filter paper 3 from generating a large number of wrinkles after entering the funnel 39 of the inner contour of the truncated cone, which affects the water flow and the filtering effect;

[0061] At this time, there are still some hollows and bubbles between the filter paper 3 and the inner wall of the funnel 39, which can easily affect the filtering effect. In order to eliminate the hollows, the electric telescopic rod 7 is started at this time, and the output end of the electric telescopic rod 7 continues to move downward with the second turntable 8, the first sleeve 9 and the arc head 30. The arc head 30 presses against the surface of the impurity filter screen 38, prompting the arc head 30 to slide along the inner wall of the guide groove 32 with the guide rod 31. Then, when the guide rod 31 completely slides into the guide groove 32, the arc head 30 will generate an upward resistance force on the second sleeve 29, prompting the second sleeve 29 to be forced upward. As the first sleeve 9 continues to press downward, the ball 26 set on the inner wall of the groove 11 is prompted to rotate along the long pitch thread groove on the surface of the second sleeve 29. 27 is subjected to upward force, which will cause the long pitch type thread groove 27 to be subjected to force along the outside of the ball 26, and prompt the ball 26 to move along the spiral track of the long pitch type thread groove 27, which prompts the first sleeve 9 connected to the ball 26 to move in a spiral track, because at this time the continuous downward pressure of the electric telescopic rod 7 prompts the arc head 30 to be closely attached to the surface of the impurity filter 38 on the inner wall of the funnel 39, limiting the rotation of the arc head 30 and the air pump 28. At this time, since the guide rod 31 is inserted into the interior of the second sleeve 29, that is, at this time, the rotation of the second sleeve 29 is also restricted. At this time, continuing to move the first sleeve 9 downward will prompt the ball 26 rotating in the groove 11 of the first sleeve 9 to carry the first sleeve 9 along the inner path of the long pitch type thread groove 27 to move in a spiral track;

[0062] When the first sleeve 9 moves along the spiral track of the long pitch thread groove 27, the filter paper smoothing roller 18 protruding from the outer wall of the first sleeve 9 will be prompted to move along the moving track of the first sleeve 9, and roll downward along the spiral track along the inner wall of the funnel 39 to smooth the filter paper 3. During the smoothing process, in order to prevent the filter paper smoothing roller 18 from getting stuck during the up and down movement, when the filter paper smoothing roller 18 gradually moves downward along the spiral track along the inner wall of the funnel 39, the filter paper smoothing roller 18 is longitudinally forced to bring the U-shaped frame 16 and the second connecting tube 19 to exert an upward force on the ball 22. The downward force causes the ball 22 to rotate along the end of the first connecting tube 12, but the direction of rotation is limited by the second connecting tube 19 in the transverse groove 151, that is, it can only swing vertically. The vertical swing can prevent the filter paper smoothing roller 18 from getting stuck when it spirals downward along the inner wall of the funnel 39 during the smoothing process. The filter paper smoothing roller 18 in the spiral downward movement trajectory will continuously rotate downward along the inner wall of the funnel 39 to smooth the hollow space between the filter paper 3 and the funnel 39, so that the bubbles are driven out, and the filter paper 3 is more closely attached to the inner wall of the funnel 39, thereby increasing the filtration efficiency.

[0063] When the filter paper smoothing roller 18 moves downward and has not yet come into contact with the filter paper 3 in the funnel 39, the limit block 14 and the first arc protrusion 24 are both blocked at the opening of the corresponding sleeve frame 141 to prevent the water in the water storage space 10 from leaking out in advance;

[0064] And because the inner wall contour of the funnel 39 is an inverted truncated cone contour, as the filter paper smoothing roller 18 gradually moves downward in a spiral moving trajectory, the inner contour of the funnel 39 becomes narrower and narrower. Therefore, the filter paper smoothing roller 18 is gradually subjected to a resistance force toward the inner wall of the first sleeve 9. The resistance force will cause the filter paper smoothing roller 18 to slide with the fixed frame 15 and the first connecting tube 12 as a whole toward the water storage space 10 on the inner wall of the first sleeve 9. Since a sufficient amount of pure water has been added to the water storage space 10 in advance, when one end of the first connecting tube 12 moves toward the water storage space 10, it will move with the corresponding limit block 14 and the first arc protrusion 24 toward the opening away from the sleeve frame 141. When the stop block 14 and the first arc protrusion 24 are separated from the opening of the sleeve frame 141, the water pressure will force the water in the water storage space 10 to enter the corresponding first connecting pipe 12 through the second through groove 23 and the third through groove 25, and finally force the water to enter the first through groove 21 and spray out. Since the first connecting pipe 12 is connected with the rolling ball 22 and the second connecting pipe 19, the water is finally squeezed out from the first through groove 21 opened on the outer wall of the U-shaped frame 16, and sprayed onto the surface of the rotating filter paper smoothing roller 18, and is coated on the filter paper 3 being smoothed by the rotating filter paper smoothing roller 18, so that the filter paper 3 is in a wet state after absorbing water, and the wet filter paper 3 has a higher fit with the inner wall of the funnel 39, and the filtering effect is better;

[0065] When the filter paper smoothing roller 18 near the lower end of the first sleeve 9 smoothes the inner wall of the funnel 39 to a certain position, the water previously applied to the filter paper 3 will flow downward along the internal gap of the filter paper 3 under the action of gravity, which will cause the upper part of the filter paper 3 to be poorly wet at this time. In order to synchronize the overall wetness of the filter paper 3, when the arc head 30 abuts against the second sleeve 29 and makes it slide along the inner wall of the groove 11 for a certain distance, the arc head 30 will abut against the third sleeve 33 on the path of the second sleeve 29 moving upward, prompting the third sleeve 33 to move upward synchronously. In the process of the third sleeve 33 moving upward, the second arc protrusion 34 on the outer wall of the third sleeve 33 will abut against the outer wall of the first arc protrusion 24, prompting the first arc protrusion 24 to compress the corresponding first return spring 13 and the corrugated telescopic hard tube 121 after being subjected to force, prompting The first arc protrusion 24 gradually moves into the sleeve frame 141 and produces a blocking effect on the opening of the sleeve frame 141. At this time, the third through groove 25 on the outer wall of the corresponding first connecting pipe 12 is also hidden in the sleeve frame 141, and water cannot continue to enter. As the third sleeve 33 continues to move upward, the rebound of the first return spring 13 causes the first arc protrusion 24 to finally be located at the outer wall of the sponge buffer pad 35. Since the sponge buffer pad 35 is configured as a soft sponge board, the sponge buffer pad 35 will block the water inlet of the first arc protrusion 24, that is, the third through groove 25. At this time, the position of the filter paper smoothing roller 18 near the lower end of the first sleeve 9 no longer discharges water, and only the first through groove 21 corresponding to the filter paper smoothing roller 18 near the upper end of the first sleeve 9 discharges water. At this time, the filter paper part at the upper end of the filter paper 3 can be ensured to remain moist, so as to facilitate filtering in the next step;

[0066] When the above steps are completed, the filter paper 3 is in a wet state and is closely attached to the inner wall of the funnel 39. At this time, the water sample is poured along the inner wall of the funnel 39. The water flows through the filter paper 3 and filters the impurities in the water. The filtered water passes through the impurity filter 38 and enters the detector body 37 for detection.

[0067] After the test is finished, the electric telescopic rod 7 is started, and the electric telescopic rod 7 moves up with the second rotating disk 8 and the first sleeve 9 at the output end. At this time, due to the rebound force of the first return spring 13, the first connecting tube 12 and the filter paper smoothing roller 18 are pushed against the filter paper 3 to the inner wall of the funnel 39. At this time, as the filter paper smoothing roller 18 moves upward, the filter paper 3 will be taken away from the funnel 39, and a new round of replacement will be carried out;

[0068] It should be noted that the detector can automatically place the filter paper 3 in the funnel 39, and smooth the filter paper 3 after placement. During the smoothing process, the bubbles between the filter paper 3 and the inner wall of the funnel 39 are driven away, and the surface of the filter paper 3 is wetted during the smoothing process to make the filter paper 3 fit more closely to the inner wall of the funnel 39, further increasing the subsequent filtering effect, and after smoothing to a certain extent, only the upper end of the filter paper 3 can be re-moistened.

[0069] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0070] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A fully automatic water quality filtration detector, comprising a water quality detector base (1) and a second rotating disk (8), characterized in that: The outer wall of the second rotating disk (8) is rotatably provided with a replacement mechanism for replacing the filter paper (3), the replacement mechanism comprising a first sleeve (9), the inner wall of the first sleeve (9) being threadedly provided with a second sleeve (29), and the inner wall of the second sleeve (29) being slidably provided with an air pump (28) for adsorbing the filter paper (3); The inner wall of the first sleeve (9) is slidably provided with a first smoothing mechanism and a second smoothing mechanism for smoothing the filter paper (3), the first smoothing mechanism and the second smoothing mechanism both comprising a first connecting tube (12), and the first connecting tube (12) is slidably provided on the inner wall of the first sleeve (9), a fixing frame (15) is fixed to one end of the first connecting tube (12), a rolling ball (22) is rotatably provided on one end of the first connecting tube (12), the outer wall of the rolling ball (22) is fixedly connected to the second connecting tube (19), the outer wall of the second connecting tube (19) is fixedly connected to the U-shaped frame (16), and the inner wall of the U-shaped frame (16) is rotatably provided with a filter paper smoothing roller (18) for smoothing the filter paper (3) via a transverse axis (17); The inner wall of the first sleeve (9) is provided with a groove (11), the inner wall of the groove (11) is rotatably provided with a ball (26), the outer wall of the second sleeve (29) is provided with a long pitch thread groove (27), the outer wall of the ball (26) is slidably matched with the inner wall of the long pitch thread groove (27); The output end of the air pump (28) is fixedly connected to an arc-shaped head (30), the outer wall of the arc-shaped head (30) is fixedly connected to a guide rod (31), the end of the second sleeve (29) is provided with a guide groove (32) for guiding the movement of the guide rod (31), and the end profile of the guide rod (31) is larger than the notch profile of the guide groove (32); A transmission motor (4) is mounted on the outer wall of the water quality detector base (1); an output end of the transmission motor (4) is fixedly connected to a transmission shaft (5); one end of the transmission shaft (5) is fixedly connected to a first rotating disk (6); an electric telescopic rod (7) is mounted on the outer wall of the first rotating disk (6); and the second rotating disk (8) is fixedly connected to the output end of the electric telescopic rod (7).

2. The fully automatic water quality filtration detector according to claim 1, characterized in that: The first smoothing mechanism further comprises a limit block (14), the limit block (14) being fixedly connected to the end of a first connecting tube (12) corresponding to the first smoothing mechanism, and the second smoothing mechanism further comprises a first circular arc protrusion (24), the first circular arc protrusion (24) being fixedly connected to the end of the first connecting tube (12) corresponding to the second smoothing mechanism.

3. A fully automatic water quality filtration detector according to claim 2, characterized in that: The inner wall of the first sleeve (9) is provided with a water storage space (10); The limit block (14) is connected to the corresponding first connecting pipe (12), the rolling ball (22), the second connecting pipe (19) and the water storage space (10) through the second through groove (23); The first arc protrusion (24) is connected to the corresponding first connecting pipe (12), the rolling ball (22), the second connecting pipe (19) and the water storage space (10) through the third through groove (25); The inner wall of the first sleeve (9) is fixedly connected to a sleeve frame (141), two sleeve frames (141) are provided, and the two sleeve frames (141) are sleeved on the outer wall of the first connecting tube (12), and the inner contour of the sleeve frame (141) matches the outer contour of the first arc protrusion (24) and the limit block (14); The end of the first connecting tube (12) corresponding to the second smoothing mechanism is fixedly connected with a corrugated telescopic rigid tube (121), and the corrugated telescopic rigid tube (121) is arranged on the inner wall of the first return spring (13). The inner wall of the corrugated telescopic rigid tube (121) is fixedly connected with a support tube (122) for laterally supporting the corrugated telescopic rigid tube (121), and the support tube (122) is slidably arranged on the inner wall of the first connecting tube (12).

4. The fully automatic water quality filtration detector according to claim 3 is characterized in that: The outer walls of the limit block (14) and the first arc protrusion (24) are both fixedly connected with a first return spring (13), and one end of the first return spring (13) is fixedly connected to the inner wall of the first sleeve (9); The outer wall of the U-shaped frame (16) is provided with a first through groove (21) which is in communication with the second connecting pipe (19).

5. The fully automatic water quality filtration detector according to claim 4, characterized in that: The outer wall of the fixed frame (15) is provided with a transverse groove (151) for limiting the moving direction of the second connecting tube (19); the second connecting tube (19) passes through the transverse groove (151); and the outer wall of the rolling ball (22) is rotatably arranged on the inner wall of the fixed frame (15).

6. The fully automatic water quality filtration detector according to claim 5, characterized in that: Place A third sleeve (33) is slidably arranged on the inner wall of the first sleeve (9); one end of the third sleeve (33) is fixedly connected to a second arc protrusion (34); the outer wall of the second arc protrusion (34) is arranged in an arc surface; a sponge buffer pad (35) is fixedly connected to the outer wall of the third sleeve (33); the sponge buffer pad (35) is arranged to be made of sponge material; a second return spring (36) is fixedly connected to the outer wall of the third sleeve (33); one end of the second return spring (36) is fixedly connected to the outer wall of the first sleeve (9).

7. The fully automatic water quality filtration detector according to claim 6, characterized in that: The outer wall of the water quality detector base (1) is fixedly connected to a detector body (37), the input end of the detector body (37) is fixedly connected to a funnel (39), and the inner wall of the funnel (39) is fixedly connected to an impurity filter (38); The outer wall of the water quality detector base (1) is fixedly connected to a filter paper storage frame (2) for storing filter paper (3).

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