Water quality sampler for factory culture pond

Abstract

The invention provides a water quality sampler for an industrial culture pond, and belongs to the technical field of aquaculture, the water quality sampler comprises a floating seat, the upper end of the floating seat is provided with a water quality detector, a luminous column and a power supply box, the water quality detector is internally provided with a water pump, the floating seat is connected with a mounting cylinder, the water quality sampler further comprises an adjusting assembly, and the adjusting assembly is used for adjusting the sampling depth; the sampling assembly is used for collecting water in the culture pond; the device has the beneficial effects that the collecting cylinder is driven by the motor III and the screw rod to move up and down in the adjusting cylinder so as to adjust the depth of the collecting cylinder in the culture pond, so that water sources with different depths can be conveniently sampled, the detection accuracy is ensured, the monitoring range is widened, and the water quality condition of aquaculture can be comprehensively reflected; meanwhile, weeds can be directly blocked through the cutting blade, the blocking condition is avoided, impurities can be cut through the cutting blade, impurity attachment is avoided, and it is guaranteed that water taking and sampling are smooth.

Description

Technical Field

[0001] The invention relates to the technical field of aquaculture, and in particular to a water quality sampler for an industrialized aquaculture pond. Background Art

[0002] The safety of aquatic products has always been the focus of people's concern, and water quality is the key to aquatic products. The quality of water is closely related to the growth of aquatic products. Water quality analysis is carried out throughout the entire aquaculture process. By measuring water quality, we can grasp the water quality situation and changing trends at any time, make timely adjustments, maintain stable and good water quality, and keep detailed data records. By making data analysis, we can better understand the water quality environment of aquatic products and achieve green farming.

[0003] At present, most of the existing aquatic monitoring devices have a simple structure and only monitor the water quality by placing the detection head into the water. The protection effect of the monitoring device is low, and the sampling position and depth of the monitoring device are relatively fixed, and the water quality at other positions cannot be monitored. There are monitoring limitations and it is impossible to fully reflect the water quality of aquaculture. Moreover, when sampling and testing the water source inside the breeding pond, during the sampling process, the aquatic plants in the water are easy to adhere to the surface of the sampling tube, and then easily block the tube mouth of the sampling tube, making it impossible for the water inside the breeding pond to enter the sampling tube smoothly, which is not conducive to water sampling. How to invent a water quality sampler for factory breeding ponds to solve these problems has become an urgent problem to be solved by technicians in this field. Summary of the invention

[0004] In order to make up for the above shortcomings, the present invention provides a water quality sampler for factory-scale breeding ponds, which aims to solve the problem that the sampling position and depth of the monitoring device are relatively fixed, and the water quality at other locations cannot be monitored, which has limitations, and the mouth of the sampling tube is easily blocked by water during the sampling process.

[0005] The present invention is achieved in that: The present invention provides a water quality sampler for an industrial aquaculture pond, comprising a floating seat, a water quality detector, a luminous column and a power supply box are arranged on the upper end of the floating seat, a water pump is arranged inside the water quality detector, the floating seat is connected with a mounting tube, and further comprises: An adjusting component, the adjusting component is connected to the mounting tube, and the adjusting component is used to adjust the sampling depth; A sampling component is located inside the regulating component and is used for collecting water from the aquaculture pond.

[0006] Preferably, the upper end of the floating seat is fixedly connected to the water quality detector, the upper end of the water quality detector is fixedly connected to the luminous column, the upper end of the luminous column is fixedly connected to the power supply box, and the power supply box is electrically connected to the water quality detector and the water pump respectively.

[0007] Preferably, the lower side wall of the floating seat is fixedly connected to the mounting tube, one side of the floating seat is fixedly connected to motor 2, one end of motor 2 vertically penetrates the side wall of the floating seat and is fixedly connected to motor 1, and one end of motor 1 is fixedly connected to a propeller.

[0008] Preferably, the adjustment assembly includes an adjustment cylinder, one end of which is fixedly connected to the inner wall of the mounting cylinder, a support ring is fixedly connected to the inner wall of the adjustment cylinder, one side of the support ring is fixedly connected to motor three, one end of motor three passes through the side wall of the support ring and is fixedly connected to a screw rod, and a limiting groove is provided on the inner wall of the adjustment cylinder.

[0009] Preferably, the adjustment assembly also includes a vertical pole and a ring, the outer wall of the ring is fixedly connected with a plurality of cutting blades distributed in a circumferential array, the vertical pole is arranged in a "T" shape, the outer wall of the vertical pole is provided with a movable groove, the ring is sleeved on the outer wall of the vertical pole, the ring is fixedly connected with a movable block, the movable block is slidably connected to the movable groove, and the outer wall of the ring is fixedly connected with a magnetic block.

[0010] Preferably, the sampling assembly includes a collecting tube, the outer wall of the collecting tube is fixedly connected with a sliding block adapted to the limiting slide groove, the inner wall of the collecting tube is fixedly connected with a fixing ring, the fixing ring is threadedly connected to the screw rod, and the collecting tube slides with the inner wall piston of the adjusting tube.

[0011] Preferably, one end of the vertical pole passes through the inner wall of the collection tube and is fixedly connected to the end of the screw rod away from the motor three, and the outer wall of the vertical pole is sleeved with a telescopic spring, and the two ends of the telescopic spring are respectively fixedly connected to the side wall of the ring and the side wall of the vertical pole.

[0012] Preferably, a groove is provided on the lower side wall of the collecting tube, and the groove is arranged in a ring shape. A partition is rotatably connected to the lower side wall of the collecting tube, and an annular groove is provided on the inner wall of the groove, and a limiting ring is rotatably connected to the annular groove. A cleaning plate is fixedly connected to the outer wall of the limiting ring, and a magnetic block 2 is fixedly connected to the side wall of the cleaning plate, and a plurality of groups of filtering holes distributed in a circular array are provided on the inner wall of the groove.

[0013] The beneficial effects of the present invention are: When collecting shallow water sources in the pool, the water pump can be directly started to collect water samples. When collecting deeper water samples, the motor and the screw rod drive the collection tube to move downward inside the adjustment tube to adjust the depth of the collection tube inside the breeding pool, so as to facilitate sampling of water sources at different depths to ensure the accuracy of detection, improve the scope of monitoring, and fully reflect the water quality of aquaculture; and in the process of water intake into the collection tube, the water plants or other algae plants inside the breeding pool will move to the port of the collection tube, and the cutting blade when stationary can directly block these impurities to prevent larger impurities from blocking the filter holes, thereby affecting the water intake process. When the lead screw rotates, the vertical rod is driven to rotate synchronously, so that the sleeve drives multiple cutting blades to rotate while sliding downward on the vertical rod. In this process, the cutting blade can cut and crush the blocked impurities to avoid the adhesion of impurities and improve the filtering effect. When the lead screw drives the collection tube to move up and reset, the cutting blade is also rotated to avoid the adhesion of impurities at the port of the collection tube. In addition, the filter hole can filter fine impurities to avoid affecting the detection result during sampling. At the same time, the cleaning plate is driven to rotate by the action of magnetic block 2 and magnetic block 1, so that the filter holes inside the groove can be cleaned to avoid the clogging of the filter holes by small impurities, so as to improve the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of a water quality sampler for a factory-scale breeding pond provided by an embodiment of the present invention; Figure 2 It is a schematic diagram of the overall half-section structure of a water quality sampler for a factory-scale aquaculture pond provided by an embodiment of the present invention; Figure 3 This is a schematic diagram of the bottom structure of a floating seat of a water quality sampler for a factory-scale aquaculture pond provided by an embodiment of the present invention; Figure 4 It is a schematic diagram of a half-section structure of a regulating component and a sampling component of a water quality sampler for a factory-scale aquaculture pond provided by an embodiment of the present invention; Figure 5 It is a schematic diagram of the overall structure of a sampling tube of a water quality sampler for a factory-scale aquaculture pond provided by an embodiment of the present invention; Figure 6It is a schematic diagram of the bottom structure of a sampling tube of a water quality sampler for a factory-scale aquaculture pond provided by an embodiment of the present invention; Figure 7 The invention provides a water quality sampler for a factory breeding pond. Figure 6 A schematic diagram of the structure enlargement in the middle; Figure 8 It is a schematic diagram of the structure of a regulating cylinder of a water quality sampler for a factory-scale aquaculture pond provided by an embodiment of the present invention; Fig. 9 It is a schematic diagram of the cutting blade structure of a water quality sampler for a factory breeding pond provided by an embodiment of the present invention; Fig.10 It is a schematic diagram of the combined structure of an adjustment component and a sampling component of a water quality sampler for a factory breeding pond provided by an embodiment of the present invention; Fig.11 The invention provides a water quality sampler for a factory breeding pond. Fig.10 Enlarged schematic diagram of the structure at point B in the middle.

[0016] In the figure: 1. propeller; 2. motor one; 3. motor two; 4. floating seat; 41. mounting tube; 5. water quality detector; 51. water pump; 6. power supply box; 7. luminous column; 8. adjustment component; 801. adjustment tube; 802. vertical pole; 803. telescopic spring; 804. screw rod; 805. motor three; 806. support ring; 807. limit slide groove; 808. sleeve ring; 8081. cutting blade; 809. magnetic block one; 810. movable groove; 811. movable block; 9. sampling component; 901. collection tube; 902. slider; 903. fixing ring; 904. groove; 905. filter hole; 906. cleaning plate; 907. partition; 908. limit ring; 909. magnetic block two; 9010. annular groove. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0018] Example, see Figure 1-Figure 11 A water quality sampler for a factory breeding pond includes a floating seat 4, a water quality detector 5, a luminous column 7 and a power supply box 6 are arranged on the upper end of the floating seat 4, a water pump 51 is arranged inside the water quality detector 5, and the floating seat 4 is connected to a mounting tube 41, and also includes: An adjusting component 8, the adjusting component 8 is connected to the mounting tube 41, and the adjusting component 8 is used to adjust the sampling depth; The sampling component 9 is located inside the regulating component 8 and is used for collecting water from the aquaculture pond.

[0019] Furthermore; the upper end of the floating seat 4 is fixedly connected to the water quality detector 5, the upper end of the water quality detector 5 is fixedly connected to the luminous column 7, the upper end of the luminous column 7 is fixedly connected to the power supply box 6, and the power supply box 6 is electrically connected to the water quality detector 5 and the water pump 51 respectively; the lower side wall of the floating seat 4 is fixedly connected to the mounting tube 41, and one side of the floating seat 4 is fixedly connected to a motor 2 3, one end of the motor 2 3 vertically penetrates the side wall of the floating seat 4 and is fixedly connected to a motor 1 2, and one end of the motor 1 2 is fixedly connected to a propeller 1.

[0020] It should be noted that the power supply box 6 can supply power to each live part, and the power supply box 6 can be rechargeable, or the battery can be directly replaced to facilitate the supply of electricity, and the luminous column 7 can automatically light up at night, so as to facilitate the user to observe its position, and the coordinated use of motor 1 2 and motor 2 3 can adjust the position of the floating seat 4 in the breeding pond, and the operation of motor 1 2 can drive the propeller 1 to rotate, thereby providing power for the position adjustment of the floating seat 4, and the operation of motor 2 3 can make motor 1 2 rotate, so as to adjust the direction of the floating seat 4 when moving, so as to facilitate the floating seat 4 to move around inside the breeding pond, motor 1 2 and motor 2 3. The water quality detector 5, the water pump 51 and the motor 805 are all controlled by an external remote control. When sampling, the water pump 51 can be started to absorb the liquid inside the breeding pond through the collection tube 901 and transport it to the water quality detector 5 for detection. The water quality detector 5 can detect multiple water quality parameters such as water temperature, pH value, ammonia nitrogen, dissolved oxygen and nitrite. The water quality detector 5 uses the Internet of Things technology to send the collected data to the terminal data acquisition platform for timely observation and analysis. The water quality detector 5 can be used in conjunction with other components in the pool. By analyzing the detected data, it is determined whether to start the work of other equipment, thereby improving the level of intelligence.

[0021] Reference Figure 4 , Figure 8 , Fig. 9 and Fig.10, further; the adjusting component 8 includes an adjusting cylinder 801, one end of the adjusting cylinder 801 is fixedly connected to the inner wall of the mounting cylinder 41, the inner wall of the adjusting cylinder 801 is fixedly connected with a support ring 806, one side of the support ring 806 is fixedly connected with a motor three 805, one end of the motor three 805 passes through the side wall of the support ring 806 and is fixedly connected with a screw rod 804, and the inner wall of the adjusting cylinder 801 is provided with a limited position slide groove 807; the adjusting component 8 also includes a vertical rod 802 and a collar 808, the outer wall of the collar 808 is fixedly connected with a plurality of cutting blades 8081 distributed in a circumferential array, the vertical rod 802 is arranged in a "T" shape, the outer wall of the vertical rod 802 is provided with a movable groove 810, the collar 808 is sleeved on the outer wall of the vertical rod 802, the collar 808 is fixedly connected with a movable block 811, the movable block 811 is slidably connected with the movable groove 810, and the outer wall of the collar 808 is fixedly connected with a magnetic block one 809.

[0022] The depth adjustment of the collecting tube 901 by the adjusting tube 801: when collecting shallow water sources in the pool, the water pump 51 can be directly started to collect water samples. When collecting deeper water samples, the motor 3 805 can be started to rotate the screw rod 804, and then the screw rod 804 and the fixing ring 903 are connected by threads to drive the collecting tube 901 to move downward inside the adjusting tube 801, so as to adjust the depth of the collecting tube 901 inside the breeding pool, so as to facilitate sampling of water sources at different depths to ensure the accuracy of detection. In addition, the limiting sliding between the limiting slide groove 807 and the slider 902 can prevent the collecting tube 901 from rotating when moving, thereby ensuring the stability of its movement; The cutting blade 8081 blocks and crushes impurities: when the collecting tube 901 is in the process of water intake, the water plants or other algae plants in the culture pond will move to the port of the collecting tube 901, and the cutting blade 8081 at rest can directly block these impurities to prevent larger impurities from blocking the filter hole 905, thereby affecting the water intake process, and during the rotation of the screw rod 804, it will drive the vertical rod 802 to rotate synchronously. When the screw rod 804 drives the collecting tube 901 to move downward, the sliding connection between the movable block 811 and the movable groove 810 can make the ring 80 8 drives multiple cutting blades 8081 to rotate while sliding downward on the vertical rod 802 and compressing the telescopic spring 803. During this process, the cutting blades 8081 can cut and crush the blocked impurities to avoid the adhesion of impurities and improve the filtering effect. When the lead screw 804 drives the collection tube 901 to move up and reset, the cutting blades 8081 are also rotated to avoid the adhesion of impurities at the port of the collection tube 901. At the same time, the elastic recovery of the telescopic spring 803 drives the ring 808 to move up synchronously to ensure the normal working range of the cutting blade 8081.

[0023] Reference Figure 5 , Figure 6, Figure 7 , Fig.10 and Fig.11 , further; the sampling component 9 includes a collection tube 901, the outer wall of the collection tube 901 is fixedly connected with a slider 902 adapted to the limiting slide groove 807, the inner wall of the collection tube 901 is fixedly connected with a fixing ring 903, the fixing ring 903 is threadedly connected with the screw rod 804, and the collection tube 901 slides with the inner wall piston of the adjustment tube 801; one end of the vertical rod 802 passes through the inner wall of the collection tube 901 and is fixedly connected with one end of the screw rod 804 away from the motor three 805, the outer wall of the vertical rod 802 is sleeved with a telescopic spring 803, and the two ends of the telescopic spring 803 are respectively It is fixedly connected to the side wall of the ring 808 and the side wall of the vertical rod 802; a groove 904 is provided on the lower side wall of the collecting tube 901, and the groove 904 is arranged in a ring shape. A partition plate 907 is rotatably connected to the lower side wall of the collecting tube 901, and an annular groove 9010 is provided on the inner wall of the groove 904. The annular groove 9010 is rotatably connected to a limiting ring 908. A cleaning plate 906 is fixedly connected to the outer wall of the limiting ring 908, and a magnetic block 909 is fixedly connected to the side wall of the cleaning plate 906. The inner wall of the groove 904 is provided with a plurality of groups of filtering holes 905 distributed in a circular array.

[0024] The collecting tube 901 samples and filters the pool water: after adjusting the depth of the collecting tube 901, the water pump 51 is started to work, and then the pool water is filtered through the filter hole 905 and then sucked into the interior of the collecting tube 901. Fine impurities can be filtered through the filter hole 905 to avoid affecting the detection result during sampling. In addition, when the ring 808 rotates, the magnet block 2 909 is driven to rotate synchronously. The end of the magnet block 2 909 close to the filter hole 905 and the end of the magnet block 1 809 close to the ring 808 are of different polarity. Therefore, through the magnetic interaction and the rotation connection between the annular groove 9010 and the limit ring 908, the magnet block 2 909 drives the cleaning plate 906 to rotate synchronously, so that the filter hole 905 inside the groove 904 can be cleaned to avoid fine impurities from blocking the filter hole 905, so as to improve the filtering effect. In addition, the partition 907 is provided to ensure that the ring 808 can rotate normally when squeezed by the telescopic spring 803.

[0025] The working principle of the water quality sampler for the factory breeding pond is as follows: when collecting shallow water sources in the pool, the water pump 51 can be directly started to collect water samples; when collecting deeper water samples, the motor 3 805 can be started to rotate the screw rod 804, and then the screw rod 804 and the fixing ring 903 are connected by threads to drive the collection tube 901 to move downward inside the adjustment tube 801, so as to adjust the depth of the collection tube 901 inside the breeding pond, so as to facilitate sampling of water sources at different depths to ensure the accuracy of detection; in addition, the limiting sliding between the limiting slide groove 807 and the slider 902 can prevent the collection tube 901 from rotating when moving, thereby ensuring the stability of its movement; When the collecting tube 901 is in the process of water intake, the water plants or other algae plants in the breeding pond will move to the port of the collecting tube 901, and the cutting blade 8081 at rest can directly block these impurities to prevent larger impurities from blocking the filter hole 905, thereby affecting the water intake process, and during the rotation of the screw rod 804, the vertical rod 802 will be driven to rotate synchronously. When the screw rod 804 drives the collecting tube 901 to move downward, the sliding connection between the movable block 811 and the movable groove 810 can enable the ring 808 to drive multiple cutting blades When 8081 rotates, it slides downward on the vertical rod 802 and compresses the telescopic spring 803. During this process, the cutting blade 8081 can cut and crush the blocked impurities to avoid the adhesion of impurities and improve the filtering effect. When the screw rod 804 drives the collection tube 901 to move up and reset, the cutting blade 8081 also rotates to avoid the adhesion of impurities at the port of the collection tube 901. At the same time, the elastic recovery of the telescopic spring 803 drives the collar 808 to move up synchronously to ensure the normal working range of the cutting blade 8081. After the depth of the collection tube 901 is adjusted, the water pump 51 is started to work, and the pool water is filtered through the filter hole 905 and then sucked into the interior of the collection tube 901. Fine impurities can be filtered through the filter hole 905 to avoid affecting the detection result during sampling. In addition, when the ring 808 rotates, the magnet block 2 909 is driven to rotate synchronously. The end of the magnet block 2 909 close to the filter hole 905 and the end of the magnet block 1 809 close to the ring 808 are of different polarity. Therefore, through magnetic interaction and the rotation connection between the annular groove 9010 and the limit ring 908, the magnet block 2 909 drives the cleaning plate 906 to rotate synchronously, so that the filter hole 905 inside the groove 904 can be cleaned to avoid fine impurities blocking the filter hole 905, thereby improving the filtering effect.

[0026] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water quality sampler for a factory breeding pond, comprising a floating seat (4), wherein the upper end of the floating seat (4) is provided with a water quality detector (5), a luminous column (7) and a power supply box (6), wherein a water pump (51) is provided inside the water quality detector (5), and the floating seat (4) is connected to a mounting tube (41), characterized in that: Also includes: An adjusting component (8), the adjusting component (8) being connected to the mounting tube (41), the adjusting component (8) being used to adjust the sampling depth; A sampling component (9), the sampling component (9) is located inside the regulating component (8), and the sampling component (9) is used to collect water from the aquaculture pond.

2. The water quality sampler for an industrial aquaculture pond according to claim 1, characterized in that: The upper end of the floating seat (4) is fixedly connected to the water quality detector (5), the upper end of the water quality detector (5) is fixedly connected to the luminous column (7), the upper end of the luminous column (7) is fixedly connected to the power supply box (6), and the power supply box (6) is electrically connected to the water quality detector (5) and the water pump (51) respectively.

3. The water quality sampler for an industrial aquaculture pond according to claim 1, characterized in that: The lower side wall of the floating seat (4) is fixedly connected to the mounting cylinder (41); one side of the floating seat (4) is fixedly connected to a second motor (3); one end of the second motor (3) vertically penetrates the side wall of the floating seat (4) and is fixedly connected to a first motor (2); one end of the first motor (2) is fixedly connected to a propeller (1).

4. The water quality sampler for an industrial aquaculture pond according to claim 1, characterized in that: The adjustment assembly (8) comprises an adjustment cylinder (801), one end of the adjustment cylinder (801) being fixedly connected to the inner wall of the mounting cylinder (41), a support ring (806) being fixedly connected to the inner wall of the adjustment cylinder (801), a motor three (805) being fixedly connected to one side of the support ring (806), one end of the motor three (805) passing through the side wall of the support ring (806) and being fixedly connected to a lead screw (804), and a limiting sliding groove (807) being provided on the inner wall of the adjustment cylinder (801).

5. The water quality sampler for an industrial aquaculture pond according to claim 4, characterized in that: The adjustment assembly (8) further comprises a vertical rod (802) and a collar (808); the outer wall of the collar (808) is fixedly connected with a plurality of cutting blades (8081) distributed in a circumferential array; the vertical rod (802) is arranged in a "T" shape; the outer wall of the vertical rod (802) is provided with a movable groove (810); the collar (808) is sleeved on the outer wall of the vertical rod (802); the collar (808) is fixedly connected with a movable block (811); the movable block (811) is slidably connected to the movable groove (810); and the outer wall of the collar (808) is fixedly connected with a magnetic block 1 (809).

6. The water quality sampler for an industrial aquaculture pond according to claim 5, characterized in that: The sampling assembly (9) comprises a collecting tube (901), the outer wall of the collecting tube (901) being fixedly connected with a sliding block (902) adapted to a limiting sliding groove (807), the inner wall of the collecting tube (901) being fixedly connected with a fixing ring (903), the fixing ring (903) being threadedly connected with a screw rod (804), and the collecting tube (901) slidingly engages with the inner wall piston of the adjusting tube (801).

7. The water quality sampler for an industrial aquaculture pond according to claim 6, characterized in that: One end of the vertical rod (802) passes through the inner wall of the collection tube (901) and is fixedly connected to the end of the screw rod (804) away from the motor three (805); the outer wall of the vertical rod (802) is sleeved with a telescopic spring (803); the two ends of the telescopic spring (803) are respectively fixedly connected to the side wall of the ring (808) and the side wall of the vertical rod (802).

8. The water quality sampler for factory breeding ponds according to claim 7, characterized in that: The lower side wall of the collecting tube (901) is provided with a groove (904), the groove (904) is arranged in an annular shape, the lower side wall of the collecting tube (901) is rotatably connected to a partition plate (907), the inner wall of the groove (904) is provided with an annular groove (9010), the annular groove (9010) is rotatably connected to a limiting ring (908), the outer wall of the limiting ring (908) is fixedly connected to a cleaning plate (906), the side wall of the cleaning plate (906) is fixedly connected to a second magnetic block (909), and the inner wall of the groove (904) is provided with a plurality of groups of filtering holes (905) distributed in a circumferential array.

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