Fishpond drum filter with anti-blocking pollution discharge structure

Abstract

The invention relates to the technical field of drum filters, in particular to a fishpond drum filter with an anti-blocking sewage discharge structure, which comprises a shell, a U-shaped plate and a partition plate are mounted in the shell, a liquid inlet pipe is embedded in the shell, and a first rotating plate and a second rotating plate are rotatably arranged on the liquid inlet pipe. The second rotating plate is fixedly connected with a fixing column which penetrates through the U-shaped plate and is rotationally connected with the U-shaped plate, rectangular frames which are distributed at equal intervals in the circumferential direction are arranged between the first rotating plate and the second rotating plate, filter screens are arranged in the rectangular frames, and the U-shaped plate is fixedly connected with a double-shaft motor; the fixed column is in transmission with an adjacent output shaft on the double-shaft motor through a bevel gear set, a flow guide pipe is embedded in the shell, a flow guide plate is arranged on the flow guide pipe in a sliding mode, and the shell is provided with a recoil mechanism. Impurities intercepted by the filter screens on all the rectangular frames are collected through the flow guide plates, and the continuous filtering duration of the filter screens on all the rectangular frames is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of drum filters, and in particular to a fish pond drum filter with an anti-blocking and sewage discharge structure. Background Art

[0002] The fish pond drum filter is a physical filtration equipment used in the fish pond circulation system. It is mainly used to remove solid waste in the water, such as fish feces, residual food and other impurities, so as to keep the water clean. However, during the operation of the existing drum filter, due to the design of the cylindrical filter screen in the drum filter and the water flow characteristics, the impurities are suspended and floated in the water source in the drum filter, making it difficult for the impurities in the water entering the drum filter to directly adhere to the filter screen, which causes the impurities to accumulate inside the filter. When the impurities accumulate to a certain extent, the amount of impurities attached to the filter screen per unit time increases, causing the filter screen to be blocked. After the filter screen is blocked, the clean water discharge volume of the fish pond drum filter will become smaller, affecting the continuous filtering effect of the pond water in the fish pond. In addition, the blockage of the filter screen will cause the water source to completely soak the filter screen, affecting the subsequent discharge of impurities intercepted by the filter screen, further weakening the filtering effect.

[0003] Therefore, in view of this situation, it is necessary to develop a fish pond drum filter with an anti-blocking and sewage discharge structure to meet the needs of actual use. Summary of the invention

[0004] In order to overcome the problems raised in the above background, the present invention provides a fish pond drum filter with an anti-blocking and sewage discharge structure.

[0005] The technical solution of the present invention is: a fish pond rotary drum filter with an anti-blocking and sewage discharge structure, comprising a shell, the shell is equipped with a rectangular plate, a U-shaped plate and a partition plate are installed in the shell, a liquid inlet pipe is embedded in the side wall of the shell facing the U-shaped plate, the liquid inlet pipe is rotatably provided with a first rotating plate and a second rotating plate, the second rotating plate is fixedly connected to a fixed column that penetrates the U-shaped plate and is rotatably connected thereto, a rectangular frame equidistantly distributed in the circumferential direction is provided between the first rotating plate and the second rotating plate, a filter screen is provided in the rectangular frame, and the U-shaped plate is fixedly connected to the filter. There is a double-axis motor, the fixed column and the adjacent output shafts on the double-axis motor are driven by a bevel gear set, a water purification unit is installed between the partition plate and the shell, the partition plate is provided with a circular hole connected to the water purification unit, the shell is embedded with a guide pipe, the guide pipe is rotatably connected to the first rotating plate, and the liquid inlet pipe penetrates the guide pipe, the guide pipe is slidably provided with a guide plate, the guide plate is located between the first rotating plate and the second rotating plate, and the shell is provided with a recoil mechanism for cleaning all the filters on the rectangular frame.

[0006] Preferably, the liquid inlet pipe is fixedly connected with a symmetrical inclined plate, the inclined plate is provided with evenly distributed through holes, and the through holes on the inclined plate are connected with the liquid inlet pipe.

[0007] Preferably, all the rectangular frames are connected end to end to form a star shape, and all the rectangular frames are used to scoop out suspended impurities in the liquid.

[0008] Preferably, the recoil mechanism includes a first fixed plate, which is arranged on the shell, the first fixed plate is located above the rectangular frame, the first fixed plate is provided with a liquid guide cavity, the first fixed plate is fixedly connected with a liquid guide tube connected with the liquid guide cavity thereon, the liquid guide tube penetrates the U-shaped plate and is fixedly connected thereto, the first fixed plate is fixedly connected with evenly distributed nozzles, the nozzles are connected with the liquid guide cavity of the first fixed plate, and a pump body is installed at one end of the liquid guide tube close to the shell.

[0009] Preferably, it also includes a reciprocating mechanism for controlling the movement of the first fixed plate, the reciprocating mechanism is arranged on the U-shaped plate, the first fixed plate is slidably connected to the shell, the reciprocating mechanism includes a support plate, the support plate is fixed to the inner wall of the U-shaped plate, the support plate is rotatably provided with a rotating shaft, the rotating shaft is fixed with an elliptical frame, the U-shaped plate is slidably provided with a first sliding frame, the elliptical frame is provided with a guide groove slidably connected to the first sliding frame, the first sliding frame is fixed to the first fixed plate, and the shell is provided with a detection component for detecting the amount of liquid therein.

[0010] Preferably, the detection component includes a swing frame, which is rotatably arranged on the outer side of the shell, a slide groove is arranged on the side wall of the shell, a float is slidably arranged at the slide groove of the shell, the float is located between the shell and the U-shaped plate, the float is slidably connected to the swing frame, a first fixed shell is fixedly connected to the inner wall of the U-shaped plate, a second sliding frame is slidably arranged on the first fixed shell, a spring is installed between the second sliding frame and the first fixed shell, the second sliding frame penetrates the shell and is slidably connected thereto, the swing frame is provided with a slide groove slidably connected to the second sliding frame, a third telescopic rod is fixedly connected to the inner wall of the U-shaped plate, the cavity of the third telescopic rod is communicated with the first fixed shell through a pipeline, the telescopic end of the third telescopic rod is fixedly connected to the second fixed plate, the second fixed plate is rotatably provided with a first locking block, the first locking block slides with the corresponding output shaft on the dual-axis motor, the rotating shaft is fixedly connected with a second locking block, the second locking block and the first locking block are limitedly matched, and an adjustment component for adjusting the flow cross section on all the nozzles is provided on the first fixed plate.

[0011] Preferably, the adjusting component includes a first conduit, which is embedded in the first fixed plate, the first conduit penetrates the U-shaped plate and is fixedly connected and communicated with the first fixed shell, the first fixed plate is embedded with two fourth telescopic rods, the chambers of the two fourth telescopic rods are fixedly connected and communicated with the first conduit, the telescopic ends of the two fourth telescopic rods are fixedly connected with a third sliding frame, the third sliding frame penetrates the adjacent nozzle and is slidably connected thereto, and the third sliding frame is used to adjust the flow cross-section in the corresponding nozzle.

[0012] Preferably, an expansion mechanism for adjusting the swing of the entire rectangular frame is also included, the expansion mechanism is arranged on the catheter, the expansion mechanism includes a second fixed shell, the second fixed shell is fixedly connected to and communicated with the side wall of the catheter, and the second fixed shell is located in the U-shaped plate, a sliding plate is slidably arranged in the second fixed shell, a spring is installed between the sliding plate and the second fixed shell, the second fixed shell is fixed and communicated with a second catheter, the second catheter is rotatably connected to the fixed column, the fixed column is provided with a chamber, the chamber of the fixed column and the second catheter The first rotating plate is fixedly connected with first telescopic rods equidistantly distributed in the circumference, the fixed column is fixedly connected with second telescopic rods equidistantly distributed in the circumference, the telescopic end of the second telescopic rod penetrates the second rotating plate and is slidably connected thereto, the first telescopic rod penetrates the first rotating plate and is slidably connected thereto, the telescopic end of the first telescopic rod and the corresponding telescopic end of the second telescopic rod are both rotatably connected to the adjacent rectangular frames, the two adjacent rectangular frames are hinged, the chamber of the second telescopic rod is connected to the chamber of the fixed column, and a limiting component for limiting the sliding plate is provided on the catheter.

[0013] Preferably, a sliding column is slidably provided on the side wall of the second fixed shell, a spring is installed between the sliding column and the second fixed shell, the sliding column is hemispherical on one side close to the sliding plate, the sliding plate is provided with a blind hole, and the hemispherical end of the sliding column is limitedly matched with the blind hole of the sliding plate.

[0014] Preferably, the limiting assembly includes a third conduit, the third conduit is fixedly connected to and communicated with the side wall of the catheter, the third conduit is fixedly connected to and communicated with the second fixed shell, the third conduit is slidably provided with a sliding block, a tension spring is installed between the sliding block and the third conduit, the sliding block is provided with an inclined surface, the inclined surface of the sliding block is extruded and matched with the sliding plate, and the sliding block is used to limit the sliding plate.

[0015] The beneficial effects produced by the above technical scheme are as follows: the present invention utilizes the guide plate to collect the impurities intercepted by the filter screens on all the rectangular frames, thereby improving the continuous filtering time of the filter screens on all the rectangular frames; through the operation of the pump body, the nozzle is controlled to spray water to recoil the filter screen on the rectangular frame, thereby further extending the continuous filtering time of the filter screen on the rectangular frame; the rotation of the elliptical frame is used to control the first fixed plate to drive all the nozzles to move back and forth, thereby improving the recoil effect of the nozzle on the filter screen on the rectangular frame; the float is used to detect the amount of water in the shell, and the movement of the third sliding frame is controlled at the same time to adjust the flow cross-section of the nozzle, change the impact force of the water source sprayed by the nozzle on the filter screen on the rectangular frame, accelerate the shedding of impurities intercepted by the filter screen on the rectangular frame, utilize the movement of the sliding plate to change the shape of all the rectangular frames, and reduce the distance between the filter screen on the rectangular frame and the nozzle, so as to assist the nozzle in spraying water to sequentially clean the filter screen on the rectangular frame, thereby further extending the effective filtering time of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the parts in the housing of the present invention; Figure 3 It is a cross-sectional view of the parts at the U-shaped plate and the partition plate of the present invention; Figure 4 It is a structural schematic diagram of the components of the second rotating plate and the rectangular frame of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the recoil mechanism of the present invention; Figure 6 It is a three-dimensional structural schematic diagram of the reciprocating mechanism of the present invention; Figure 7 is a cross-sectional view of the detection assembly of the present invention; Figure 8 is a cross-sectional view of the adjusting component of the present invention; Fig. 9 is a cross-sectional view of the expansion mechanism of the present invention; Fig.10 It is a cross-sectional view of the limiting component of the present invention.

[0017] The meanings of the reference numerals in the figure are as follows: 1. housing, 11. rectangular plate, 12. U-shaped plate, 13. partition plate, 14. liquid inlet pipe, 141. inclined plate, 15. first rotating plate, 151. first telescopic rod, 16. second rotating plate, 17. fixed column, 171. second telescopic rod, 18. rectangular frame, 19. dual-axis motor, 191. water purification unit, 192. guide tube, 193. guide plate, 2. first fixed plate, 21. liquid guide tube, 22. nozzle, 23. pump body, 3. Support plate, 31. Rotating shaft, 32. Elliptical frame, 33. First sliding frame, 4. Swinging frame, 41. Floating ball, 42. First fixed shell, 43. Second sliding frame, 44. Third telescopic rod, 45. Second fixed plate, 46. First locking block, 47. Second locking block, 5. First guide tube, 51. Fourth telescopic rod, 52. Third sliding frame, 6. Second fixed shell, 61. Sliding plate, 62. Second guide tube, 7. Sliding column, 8. Third guide tube, 81. Sliding block. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] Embodiment 1: A fish pond drum filter with an anti-blocking and sewage discharge structure, such as Figure 1-Figure 4As shown, it includes a housing 1, a control terminal is installed on the housing 1, a rectangular plate 11 is installed on the upper surface of the housing 1, a U-shaped plate 12 and a partition plate 13 are installed in the housing 1, the U-shaped plate 12 is located on the right side of the partition plate 13, a liquid inlet pipe 14 is embedded in the right part of the housing 1, the left end of the liquid inlet pipe 14 is connected to the existing water pump through a pipeline, the water pump is electrically connected to the control terminal, and the left part of the liquid inlet pipe 14 is rotatably provided with a first rotating plate 15 and a second rotating plate 16, the second rotating plate 16 is located on the first rotating plate 15 On the left side, the first rotating plate 15 is rotatably connected to the housing 1, and a fixed column 17 is fixedly connected to the left side of the second rotating plate 16. The fixed column 17 penetrates the U-shaped plate 12 and is rotatably connected thereto. Twelve rectangular frames 18 are arranged between the first rotating plate 15 and the second rotating plate 16, and the number and size of the rectangular frames 18 can be specifically designed according to the actual needs of the customer. A filter is arranged in the rectangular frame 18, and a dual-axis motor 1 electrically connected to the control terminal is fixedly connected to the inner wall of the U-shaped plate 12. 9, the left end of the fixed column 17 and the lower output shaft of the double-axis motor 19 are driven by a bevel gear set, a water purification unit 191 is installed between the left side of the partition plate 13 and the housing 1, the partition plate 13 is provided with a circular hole connected to the water purification unit 191, the left end of the water purification unit 191 is provided with a drain port, and a guide pipe 192 is embedded in the right part of the housing 1, the guide pipe 192 is located at the center of the first rotating plate 15 and is rotatably connected thereto, and the liquid inlet pipe 14 is embedded in the guide pipe 192, and the left side of the guide pipe 192 A guide plate 193 is provided at the end slidingly, and the guide plate 193 is set to be made of foam plastic material, and the left side of the guide plate 193 is higher than the right side thereof, and the guide plate 193 is located between the first rotating plate 15 and the second rotating plate 16. A recoil mechanism for cleaning the filter screens on all the rectangular frames 18 is provided on the shell 1. The guide plate 193 is used to collect impurities attached to the filter screens on the rectangular frames 18, thereby reducing the amount of impurities suspended in all the rectangular frames 18, thereby extending the continuous filtering time of the filter screens on all the rectangular frames 18.

[0020] like Figure 3 and Figure 4 As shown, the liquid inlet pipe 14 is fixedly connected with two front-to-back symmetrical inclined plates 141, and the two inclined plates 141 gradually tilt downward from the opposite sides to the opposite sides, and the inclined plates 141 are provided with evenly distributed through holes, and the through holes on the inclined plates 141 are connected with the liquid inlet pipe 14, and all the rectangular frames 18 are connected end to end to form a star shape, and the inclined plates 141 are used to guide the water flow, so that the water flow guides impurities to adhere to the filter screen of the rectangular frame 18, and at the same time, the shape formed by the twelve rectangular frames 18 is used to scoop up impurities in the water, thereby accelerating the cleaning of impurities in the water in all the rectangular frames 18.

[0021] like Figure 3 and Figure 5As shown, the recoil mechanism includes a first fixed plate 2, which is arranged on the right part of the shell 1, and the first fixed plate 2 is located above the rectangular frame 18. A liquid guide cavity is arranged in the middle part of the first fixed plate 2, and a liquid guide tube 21 connected to the liquid guide cavity on the left part of the first fixed plate 2 is fixedly connected, and the liquid guide tube 21 penetrates the U-shaped plate 12 and is fixedly connected thereto. The right part of the liquid guide tube 21 is made of soft material, and two groups of uniformly distributed nozzles 22 are fixedly connected to the lower part of the first fixed plate 2. The outlet extension lines of the two adjacent nozzles 22 form an acute angle, and the nozzle 22 is connected to the liquid guide cavity of the first fixed plate 2. A pump body 23 electrically connected to the control terminal is installed at the lower end of the liquid guide tube 21, and a plurality of nozzles 22 are used to spray liquid to sequentially recoil all the filter screens on the rectangular frame 18, thereby further extending the continuous filtration time of the device.

[0022] When using this device to filter and process the water source in the fish pond, the operator connects the liquid inlet pipe 14 to the water pump through the pipe and connects the water purification unit 191 to the pipe, and at the same time places an impurity collection box under the guide pipe 192, and then places the pipe connected to the liquid inlet pipe 14 and the pipe connected to the water purification unit 191 into the fish pond to complete the preliminary preparation of the device.

[0023] After the preparation operation of the device is completed, the operator starts the water pump connected to the liquid inlet pipe 14 through the control terminal. The water pump works to pump water in the pool into the liquid inlet pipe 14, and then the water is sprayed into the shell 1 through multiple through holes on the two inclined plates 141, wherein the inclined plates 141 face the corresponding rectangular frames 18, so that impurities in the pool water sprayed out of the inclined plates 141 are attached to the filter screen of the corresponding rectangular frame 18, and then the pool water flows through the filter screen on the rectangular frame 18 to between the U-shaped plate 12 and the partition plate 13. At this time, the filter screen on the rectangular frame 18 filters the impurities in the pool water, and then the pool water between the U-shaped plate 12 and the partition plate 13 is discharged back into the pool through the water purification unit 191 and the connected pipes, completing the continuous purification of the water source in the fish pond. During the above-mentioned water source filtration process, the guide plate 193 always floats on the water surface.

[0024] During the process of purifying pool water, the control terminal intermittently controls the operation of the dual-axis motor 19 and the pump body 23 at the same time. The dual-axis motor 19 drives the fixed column 17, the second rotating plate 16, all the rectangular frames 18 and the first rotating plate 15 to rotate through the bevel gear set. The rotation of all the rectangular frames 18 changes the area where they are located in the water, ensuring that all the rectangular frames 18 alternately filter impurities in the pool water, thereby increasing the continuous filtration time of the device. At the same time, the water purification unit 191 further purifies the pool water to maintain the cleanliness of the water source in the fish pond.

[0025] In the above-mentioned filtering process of the pool water, due to the hexagonal star shape formed by all the rectangular frames 18, when all the rectangular frames 18 are rotating, the filter screen on the rectangular frame 18 simultaneously scoops up the impurities in the pool water, and scoops the impurities in the pool water out of the water surface in the shell 1. Later, when the rectangular frame 18 for scooping out impurities rotates to above the guide plate 193, the pump body 23 works to draw water from the shell 1 into the liquid guide pipe 21, and then water is sprayed from multiple nozzles 22 to flush the rectangular frame 18 between the first fixed plate 2 and the guide plate 193, and the impurities scooped by the filter screen on the rectangular frame 18 are backwashed onto the guide plate 193. Subsequently, the impurities and part of the water flow through the guide pipe 192 to the existing impurity collection box, thereby reducing the accumulation of impurities in all the rectangular frames 18.

[0026] After the pump body 23 and the dual-axis motor 19 have been working for a period of time, the control terminal turns off the pump body 23 and the dual-axis motor 19, all the rectangular frames 18 stop rotating, and all the nozzles 22 stop recoil on the filter screens on the corresponding rectangular frames 18. During this process, the dual-axis motor 19 and the working frequency and the working frequency of the pump body 23 can be adjusted and set accordingly on the control terminal. At the same time, after the water purification unit 191 has been working for a period of time, the operator regularly replaces the water purification unit 191. When the fish pond is no longer in use or there is no need to perform pool water circulation and filtration operations, the operator can turn off the water pump connected to the liquid inlet pipe 14 through the control terminal.

[0027] Embodiment 2: Based on embodiment 1, Figure 6 and Figure 7 As shown, it also includes a reciprocating mechanism for controlling the movement of the first fixed plate 2, the reciprocating mechanism is arranged on the U-shaped plate 12, a slide rail is arranged on the right part of the filter tank 1, the first fixed plate 2 slides on the slide rail of the shell 1, the reciprocating mechanism includes a support plate 3, the support plate 3 is fixedly connected to the inner wall of the U-shaped plate 12, a rotating shaft 31 is rotatably arranged on the left part of the support plate 3, an elliptical frame 32 is fixedly connected to the upper end of the rotating shaft 31, a first sliding frame 33 is slidably arranged on the right part of the U-shaped plate 12, an elliptical guide groove is arranged on the upper part of the elliptical frame 32, the first sliding frame 33 is fixedly connected to the first fixed plate 2, the first sliding frame 33 slides in the guide groove of the elliptical frame 32, a detection component for detecting the amount of liquid therein is arranged on the shell 1, the reciprocating movement of the first fixed plate 2 is used to control the nozzle 22 to spray water reciprocatingly, change the impacted part of the filter screen on the rectangular frame 18, and accelerate the falling off of impurities attached to the filter screen of the rectangular frame 18.

[0028] like Figure 2 , Figure 6 and Figure 7As shown, the detection component includes a swing frame 4, which is rotatably arranged at the front part of the shell body 1, and the front part of the shell body 1 is provided with two vertical slide grooves, and a floating ball 41 slidably connected to the swing frame 4 is slidably arranged at the slide groove on the right side of the shell body 1, and a baffle for shielding the adjacent slide groove on the shell body 1 is arranged on the floating ball 41, and the floating ball 41 is located between the shell body 1 and the U-shaped plate 12, and the inner wall of the U-shaped plate 12 is fixedly connected to the first fixed shell 42, and the upper part of the first fixed shell 42 is slidably arranged with a second sliding frame 43, and a spring is installed between the lower surface of the second sliding frame 43 and the inner bottom surface of the first fixed shell 42, and the upper part of the second sliding frame 43 is located in the adjacent slide groove on the filter tank 1 and slides, and the left part of the swing frame 4 is provided with a slide groove slidably connected to the second sliding frame 43, and the inner wall of the U-shaped plate 12 is fixedly connected to the third telescopic rod 44, and the third telescopic rod The cavity 44 is connected to the first fixed shell 42 through a pipeline, the telescopic end of the third telescopic rod 44 is fixedly connected to the second fixed plate 45, and the rear part of the second fixed plate 45 is rotatably provided with a first locking block 46, the upper output shaft of the dual-axis motor 19 is set as a spline shaft, the first locking block 46 is located on the spline shaft on the upper side of the dual-axis motor 19 for limited sliding, and the lower end of the rotating shaft 31 is fixedly connected to the second locking block 47, and the second locking block 47 and the first locking block 46 are limited and matched, and the first fixed plate 2 is provided with an adjustment component for adjusting the flow cross section of all the nozzles 22. When the amount of impurities attached to the filter screen on all the rectangular frames 18 increases, the amount of water in the filter tank 1 decreases. At this time, the float 41 moves through the connected parts to reduce the flow cross section of the nozzle 22, thereby strengthening the cleaning force of the water source sprayed by the nozzle 22 on the filter screen on the rectangular frame 18.

[0029] like Figure 6 and Figure 8 As shown, the regulating component includes a first conduit 5, which is embedded in the first fixed plate 2, the left portion of the first conduit 5 penetrates the U-shaped plate 12 and is fixedly connected and communicated with the lower portion of the first fixed shell 42, and the lower portion of the first fixed plate 2 is embedded with two fourth telescopic rods 51 that are symmetrical front and back, the chambers of the two fourth telescopic rods 51 are fixedly connected and communicated with the right side of the first conduit 5, and the telescopic ends of the two fourth telescopic rods 51 are fixedly connected with a third sliding frame 52, the third sliding frame 52 penetrates the adjacent nozzle 22 and is slidably connected thereto, and the third sliding frame 52 is used to adjust the flow cross section in the corresponding nozzle 22, and while using the float 41 to detect the amount of water in the filter tank 1, the flow cross section of the nozzle 22 is adjusted at the same time, thereby increasing the recoil cleaning force of the nozzle 22 on the filter screen on the corresponding rectangular frame 18.

[0030] When the operator is away for a long time and unable to take care of the fish pond, the operator starts the water pump connected to the liquid inlet pipe 14 through the control terminal and sets the working frequency of the dual-axis motor 19 and the pump body 23. The water pump works to make the pool water circulate and filter continuously. At the same time, the water accumulated in the shell 1 will lift the float 41 to float up. The floating of the float 41 drives the swing frame 4 to swing. The swing of the swing frame 4 squeezes the second sliding frame 43 downward through the upper slide groove thereof. The second sliding frame 43 moves downward to compress the connected spring. The second sliding frame 43 moves to push the gas in the upper chamber of the third telescopic rod 44 and the gas in the upper chambers of the two fourth telescopic rods 51. The gas is drawn into the first fixed shell 42 through the corresponding pipelines and the first conduit 5 respectively, the amount of gas in the chamber of the third telescopic rod 44 decreases, so that its telescopic end drives the second fixed plate 45 and the first locking block 46 to move downward, and the first locking block 46 moves downward to release the cooperation with the second locking block 47, and the amount of gas in the upper chambers of the two fourth telescopic rods 51 decreases, so that the telescopic ends drive the adjacent third sliding frames 52 to move respectively, and the movement of the third sliding frames 52 increases the flow cross-section in the corresponding nozzle 22, and during the operation of the dual-axis motor 19 and the pump body 23, the above-mentioned backwash cleaning of the filter on the corresponding rectangular frame 18 will be repeated.

[0031] During the backwash cleaning process, when the amount of impurities attached to the filter screens on all the rectangular frames 18 increases, the amount of water passing through the filter screens on the rectangular frames 18 decreases, but the water purification unit 191 continues to drain water, causing the amount of water in the pool of the shell 1 to decrease. Subsequently, under the elastic force of the spring connected to the second sliding frame 43, the second sliding frame 43, the swing frame 4 and the float 41 repeat the above-mentioned reverse operation. At the same time, the second sliding frame 43 moves in the opposite direction and resets to push the gas in the first fixed shell 42 back into the chamber of the third telescopic rod 44 and the chamber of the two fourth telescopic rods 51. The telescopic end of the third telescopic rod 44 cooperates with the first locking block 46 and the second locking block 47 through the second fixed plate 45. Then the dual-axis motor 19 works through the first The locking block 46, the second locking block 47 and the rotating shaft 31 drive the elliptical frame 32 to rotate. The rotation of the elliptical frame 32 causes the guide groove on its upper portion to squeeze the first sliding frame 33 to reciprocate. The reciprocating movement of the first sliding frame 33 drives the first fixed plate 2 and other connected parts to reciprocate together, so that the multiple nozzles 22 reciprocate and swing to spray water to flush the filter screen of the corresponding rectangular frame 18, and the telescopic ends of the two fourth telescopic rods 51 move in the opposite direction and reset, which will cause the two third sliding frames 52 to move in the opposite direction and reset. The movement of the third sliding frame 52 reduces the flow cross-section of the corresponding nozzle 22, thereby increasing the impact force of the water sprayed by the multiple nozzles 22, enhancing the recoil force of the nozzle 22 on the filter screen on the corresponding rectangular frame 18, and improving the cleaning effect.

[0032] After the dual-axis motor 19 and the pump body 23 have finished working, the backwashing operation is stopped. When the filter screen on the rectangular frame 18 is backwashed and unblocked, the pool water volume in the shell 1 is restored, and the float 41 repeats the reverse movement and resets, so that the first locking block 46 is released from the second locking block 47 again, and at the same time the flow cross section in the corresponding nozzle 22 is enlarged.

[0033] Embodiment 3: Based on embodiment 2, Figure 4 , Figure 6 , Fig. 9 and Fig.10 As shown, it also includes an expansion mechanism for adjusting the swing of the entire rectangular frame 18, the expansion mechanism is arranged on the catheter 21, the expansion mechanism includes a second fixed shell 6, the second fixed shell 6 is fixedly connected to and communicated with the side wall of the catheter 21, and the second fixed shell 6 is located in the U-shaped plate 12, a sliding plate 61 is slidably arranged in the second fixed shell 6, a spring is installed between the rear surface of the sliding plate 61 and the second fixed shell 6, and a second guide tube 62 rotatably connected to the fixed column 17 is fixed to the rear of the second fixed shell 6 and communicated, and the fixed column 17 is provided with a cavity The chamber of the fixed column 17 is connected to the second conduit 62, the first rotating plate 15 is fixedly connected with six first telescopic rods 151 distributed equidistantly in the circumferential direction, the fixed column 17 is fixedly connected with six second telescopic rods 171 distributed equidistantly in the circumferential direction, the first rotating plate 15 and the second rotating plate 16 are both provided with circumferentially equidistantly distributed sliding grooves, the telescopic ends of the second telescopic rods 171 are located in the adjacent sliding grooves on the second rotating plate 16 and slide, the first telescopic rods 151 are located in the adjacent sliding grooves on the first rotating plate 15 and slide, and the telescopic ends of the first telescopic rods 151 are provided with useful The baffle plate for blocking the corresponding slide groove on the first rotating plate 15 is provided at the telescopic end of the second telescopic rod 171, and the baffle plate for blocking the adjacent slide groove on the second rotating plate 16 is provided. The telescopic end of the first telescopic rod 151 and the telescopic end of the corresponding second telescopic rod 171 are both rotatably connected to the adjacent rectangular frame 18, and the two adjacent rectangular frames 18 are hinged. The chamber of the second telescopic rod 171 is connected to the chambers of the six fixed columns 17. The guiding tube 21 is provided with a limiting component for limiting the sliding plate 61, and the side wall of the second fixed shell 6 is provided with a sliding Column 7, a spring is installed between the sliding column 7 and the second fixed shell 6, the side of the sliding column 7 close to the sliding plate 61 is set to be hemispherical, the sliding plate 61 is provided with a blind hole, the hemispherical end of the sliding column 7 is limitedly matched with the blind hole of the sliding plate 61, and the flow cross-section on the nozzle 22 becomes smaller, so that the pressure in the liquid guide tube 21 increases, triggering the movement of multiple rectangular frames 18, so that the shape composed of all rectangular frames 18 becomes approximately circular, shortening the distance between the rectangular frame 18 and the nozzle 22, and strengthening the backwashing force of the nozzle 22 on the filter screen on the rectangular frame 18.

[0034] like Fig. 9 and Fig.10As shown, the limiting assembly includes a third conduit 8, which is fixedly connected to and communicated with the side wall of the liquid guiding tube 21, and the flow cross-section of the third conduit 8 is smaller than the flow cross-section of the second fixed shell 6, and the rear portion of the third conduit 8 is fixedly connected to and communicated with the second fixed shell 6, and a sliding block 81 is slidably provided at the rear portion of the third conduit 8, and a tension spring is installed between the sliding block 81 and the third conduit 8, and an inclined surface is provided at the lower portion of the front side surface of the sliding block 81, and the inclined surface of the sliding block 81 is inclined downward from front to back, and the inclined surface of the sliding block 81 is pressed and matched with the sliding plate 61, and the sliding block 81 is used to limit the sliding plate 61, and the sliding block 81 is used to limit the sliding plate 61, and the duration of the circular shape formed by the entire rectangular frame 18 is extended by limiting the sliding plate 61 by the sliding block 81, that is, the recoil cleaning duration of the device is extended.

[0035] During the above-mentioned backflushing and cleaning operation of the filter on the corresponding rectangular frame 18, the pump body 23 works in the process of extracting water from the shell 1. Due to the limiting effect of the sliding column 7 on the sliding plate 61, the pressure fluctuation in the liquid guide tube 21 will not affect the movement of the sliding plate 61. When the amount of impurities attached to the rectangular frame 18 is large, the amount of water in the shell 1 becomes less, and the float 41 moves downward while driving the connected parts to repeat the above-mentioned operation, wherein the third sliding frame 52 moves to reduce the flow cross-section of the corresponding nozzle 22. At this time, the liquid pressure in the liquid guide tube 21 gradually increases, and the increased pressure squeezes the sliding plate 61 to move through the sliding column 7. The sliding plate 61 moves and compresses the connected spring at the same time. At the same time, the liquid pressure in the liquid guide tube 21 squeezes the sliding block 81 through the third conduit 8 to move, and the sliding block 81 moves and is inserted into the second fixed shell 6 and stretches the connected tension spring.

[0036] When the sliding plate 61 moves past the sliding block 81, the sliding plate 61 moves to squeeze the inclined surface of the sliding block 81. After the sliding plate 61 passes through the sliding block 81, under the action of the pressure in the third conduit 8, the sliding block 81 limits the sliding plate 61. The sliding plate 61 moves to push the gas in the second fixed shell 6 through the second conduit 62 and the chamber of the fixed column 17 into the chamber of the six second telescopic rods 171. Subsequently, the telescopic ends of the multiple second telescopic rods 171 drive the adjacent rectangular frames 18 to move, among which the six first telescopic rods 151 undergo corresponding telescopic changes, and finally all the rectangular frames 18 form an approximate circle, pulling the distance between the filter screen on the rectangular frame 18 and all the nozzles 22, and making the nozzles 22 vertically spray water to flush the filter screen on the rectangular frame 18, further improving the recoil effect, accelerating the amount of impurities attached to the filter screen of the rectangular frame 18, and extending the continuous filtration time of the device.

[0037] During the backflushing process of cleaning the filter screen on the corresponding rectangular frame 18, as the filter screen on the rectangular frame 18 is gradually unblocked, the liquid level in the shell 1 is gradually restored, causing the float 41 to gradually move upward, that is, the flow cross-section of all nozzles 22 is gradually enlarged, so that the liquid pressure in the liquid conduit 21 is gradually restored. However, in this process, due to the liquid pressure in the liquid conduit 21, the sliding block 81 always limits the sliding plate 61, extending all nozzles 22 to clean the filter screens on all rectangular frames 18 distributed in a circular shape.

[0038] After the liquid guide tube 21 is fully restored, the sliding block 81 is reset under the tension of the connected tension spring to release the limit on the sliding plate 61. Then, under the elastic force of the spring connected to the sliding plate 61, the sliding plate 61 moves in the opposite direction and resets to reinsert the sliding column 7 into the blind hole thereon. The above operation is repeated when backflushing and cleaning is performed again.

[0039] It should be pointed out that the above preferred embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A fish pond drum filter with an anti-blocking sewage discharge structure, comprising a housing (1), the housing (1) being provided with a rectangular plate (11), a U-shaped plate (12) and a partition plate (13) being provided inside the housing (1), a liquid inlet pipe (14) being embedded in a side wall of the housing (1) facing the U-shaped plate (12), the liquid inlet pipe (14) being rotatably provided with a first rotating plate (15) and a second rotating plate (16), the second rotating plate (16) being fixedly connected with a fixing column (17) penetrating the U-shaped plate (12) and being rotatably connected thereto, A rectangular frame (18) equidistantly distributed in the circumferential direction is provided between the first rotating plate (15) and the second rotating plate (16), a filter screen is provided in the rectangular frame (18), a dual-axis motor (19) is fixedly connected to the U-shaped plate (12), a bevel gear set is used to transmit power between the fixed column (17) and the adjacent output shafts on the dual-axis motor (19), a water purification unit (191) is installed between the partition plate (13) and the housing (1), and the partition plate (13) is provided with a circular hole communicating with the water purification unit (191), and the invention is characterized in that: The invention also comprises a guide tube (192), the guide tube (192) being embedded in the shell (1), the guide tube (192) being rotatably connected to the first rotating plate (15), and the liquid inlet pipe (14) penetrating the guide tube (192), the guide tube (192) being slidably provided with a guide plate (193), the guide plate (193) being located between the first rotating plate (15) and the second rotating plate (16), and a recoil mechanism for cleaning the filter screens on all the rectangular frames (18) being provided on the shell (1).

2. The fish pond rotary drum filter with anti-blocking and sewage discharge structure according to claim 1, characterized in that: The liquid inlet pipe (14) is fixedly connected to a symmetrical inclined plate (141), the inclined plate (141) is provided with evenly distributed through holes, and the through holes on the inclined plate (141) are in communication with the liquid inlet pipe (14).

3. The fish pond drum filter with anti-blocking and sewage discharge structure according to claim 1, characterized in that: All of the rectangular frames (18) are connected end to end to form a star shape, and all of the rectangular frames (18) are used to scoop out suspended impurities in the liquid.

4. The fish pond rotary drum filter with anti-blocking and sewage discharge structure according to claim 1, characterized in that: The recoil mechanism comprises a first fixing plate (2), the first fixing plate (2) being arranged on the shell (1), the first fixing plate (2) being located above the rectangular frame (18), the first fixing plate (2) being provided with a liquid guiding cavity, the first fixing plate (2) being fixedly connected with a liquid guiding tube (21) communicating with the liquid guiding cavity thereon, the liquid guiding tube (21) penetrating the U-shaped plate (12) and being fixedly connected thereto, the first fixing plate (2) being fixedly connected with uniformly distributed spray heads (22), the spray heads (22) being connected with the liquid guiding cavity of the first fixing plate (2), and a pump body (23) being installed at one end of the liquid guiding tube (21) close to the shell (1).

5. The fish pond rotary drum filter with anti-blocking and sewage discharge structure according to claim 4, characterized in that: The invention also comprises a reciprocating mechanism for controlling the movement of the first fixed plate (2), the reciprocating mechanism being arranged on the U-shaped plate (12), the first fixed plate (2) being slidably connected to the shell (1), the reciprocating mechanism comprising a support plate (3), the support plate (3) being fixedly connected to the inner wall of the U-shaped plate (12), the support plate (3) being rotatably provided with a rotating shaft (31), the rotating shaft (31) being fixedly connected to an elliptical frame (32), the U-shaped plate (12) being slidably provided with a first sliding frame (33), the elliptical frame (32) being provided with a guide groove slidably connected to the first sliding frame (33), the first sliding frame (33) being fixedly connected to the first fixed plate (2), and the shell (1) being provided with a detection component for detecting the amount of liquid therein.

6. The fish pond rotary drum filter with anti-blocking and sewage discharge structure according to claim 5, characterized in that: The detection component comprises a swing frame (4), the swing frame (4) being rotatably arranged on the outside of the shell (1), the side wall of the shell (1) being provided with a slide groove, a floating ball (41) being slidably arranged at the slide groove of the shell (1), the floating ball (41) being located between the shell (1) and the U-shaped plate (12), the floating ball (41) being slidably connected to the swing frame (4), the inner wall of the U-shaped plate (12) being fixedly connected with a first fixed shell (42), the first fixed shell (42) being slidably provided with a second sliding frame (43), a spring being installed between the second sliding frame (43) and the first fixed shell (42), the second sliding frame (43) penetrating the shell (1) and being slidably connected thereto, the swing frame (4) being provided with a spring which is slidably connected to the first fixed shell (42), and the second sliding frame (43) penetrating the shell (1) and being slidably connected thereto. The second sliding frame (43) is slidably connected to the slide groove, the inner wall of the U-shaped plate (12) is fixedly connected with a third telescopic rod (44), the cavity of the third telescopic rod (44) is connected to the first fixed shell (42) through a pipeline, the telescopic end of the third telescopic rod (44) is fixedly connected with a second fixed plate (45), the second fixed plate (45) is rotatably provided with a first locking block (46), the first locking block (46) and the corresponding output shaft on the dual-axis motor (19) are limited and slidable, the rotating shaft (31) is fixedly connected with a second locking block (47), the second locking block (47) and the first locking block (46) are limited and matched, and the first fixed plate (2) is provided with an adjustment component for adjusting the flow cross section on all the nozzles (22).

7. The fish pond rotary drum filter with anti-blocking and sewage discharge structure according to claim 6, characterized in that: The adjusting component comprises a first conduit (5), the first conduit (5) being embedded in the first fixing plate (2), the first conduit (5) penetrating the U-shaped plate (12) and being fixedly connected and communicated with the first fixing shell (42), the first fixing plate (2) being embedded with two fourth telescopic rods (51), the chambers of the two fourth telescopic rods (51) being fixedly connected and communicated with the first conduit (5), the telescopic ends of the two fourth telescopic rods (51) being fixedly connected with a third sliding frame (52), the third sliding frame (52) penetrating the adjacent nozzle (22) and being slidably connected thereto, the third sliding frame (52) being used to adjust the flow cross section in the corresponding nozzle (22).

8. The fish pond rotary drum filter with anti-blocking and sewage discharge structure according to claim 4, characterized in that: The expansion mechanism is also provided for adjusting the swing of the entire rectangular frame (18), the expansion mechanism being arranged on the catheter tube (21), the expansion mechanism comprising a second fixed shell (6), the second fixed shell (6) being fixedly connected to and communicated with the side wall of the catheter tube (21), and the second fixed shell (6) being located in the U-shaped plate (12), a sliding plate (61) being slidably arranged in the second fixed shell (6), a spring being installed between the sliding plate (61) and the second fixed shell (6), a second catheter (62) being fixed to and communicated with the second fixed shell (6), the second catheter (62) being rotatably connected to the fixed column (17), the fixed column (17) being provided with a chamber, the chamber of the fixed column (17) being communicated with the second catheter (62), and the The first rotating plate (15) is fixedly connected with first telescopic rods (151) which are equidistantly distributed in the circumference, and the fixed column (17) is fixedly connected with second telescopic rods (171) which are equidistantly distributed in the circumference. The telescopic end of the second telescopic rod (171) penetrates the second rotating plate (16) and is slidably connected thereto. The first telescopic rod (151) penetrates the first rotating plate (15) and is slidably connected thereto. The telescopic end of the first telescopic rod (151) and the corresponding telescopic end of the second telescopic rod (171) are both rotatably connected to adjacent rectangular frames (18). Two adjacent rectangular frames (18) are hinged. The chamber of the second telescopic rod (171) is in communication with the chamber of the fixed column (17). A limiting component for limiting the sliding plate (61) is provided on the catheter (21).

9. The fish pond rotary drum filter with anti-blocking and sewage discharge structure according to claim 8, characterized in that: A sliding column (7) is slidably provided on the side wall of the second fixed shell (6), a spring is installed between the sliding column (7) and the second fixed shell (6), a side of the sliding column (7) close to the sliding plate (61) is arranged in a hemispherical shape, the sliding plate (61) is provided with a blind hole, and the hemispherical end of the sliding column (7) is limitedly matched with the blind hole of the sliding plate (61).

10. The fish pond drum filter with anti-blocking and sewage discharge structure according to claim 8, characterized in that: The limiting assembly comprises a third conduit (8), the third conduit (8) being fixedly connected to and in communication with the side wall of the liquid guiding tube (21), the third conduit (8) being fixedly connected to and in communication with the second fixed shell (6), the third conduit (8) being slidably provided with a sliding block (81), a tension spring being installed between the sliding block (81) and the third conduit (8), the sliding block (81) being provided with an inclined surface, the inclined surface of the sliding block (81) being pressed and matched with the sliding plate (61), and the sliding block (81) being used to limit the sliding plate (61).

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