An automatic chemical feeder that facilitates pipeline cleaning

Abstract

The present invention relates to an automatic dosing machine, and particularly to an automatic dosing machine facilitating pipeline cleaning. The present invention provides such an automatic dosing machine facilitating pipeline cleaning, which includes a dosing machine, a wastewater box, a water pipe, a flushing mechanism and a cleaning mechanism. The dosing machine is installed on the ground and is used for pre-dissolving the medicament. The wastewater box is installed on the ground, and a water pipe is installed between the dosing machine and the wastewater box. A flushing mechanism for flushing the sediment is provided on the ground, and a cleaning mechanism for scraping off the sediment is provided between the dosing machine and the wastewater box. By pumping clear water into the water pipe through a water pump, the present invention can flush the inside of the water pipe with the clear water, and by driving a threaded rod to rotate through a motor, the present invention can scrape off the sediment remaining on the inner wall of the water pipe with a scraper, so as to facilitate the clear water to wash away the sediment remaining in the water pipe, and further facilitate people to clean the sediment remaining inside the water pipe, thereby preventing sediment residue and avoiding the sediment from affecting the purity of the new mixed liquid.

Description

Technical Field

[0001] The present invention relates to an automatic chemical feeder, and particularly to an automatic chemical feeder facilitating pipeline cleaning. Background Art

[0002] In the process of sewage treatment, in order to effectively filter suspended particles in wastewater, various chemicals such as dehydrating agents often need to be added to the wastewater. To ensure the effect of the chemicals, an automatic chemical feeder is often used to pre-dissolve them before adding the chemicals to obtain a uniformly concentrated mixture.

[0003] Currently, when an automatic chemical feeder is in use, usually powdered chemicals are added at one end, and an appropriate amount of water is added at the other end for mixing. Then, the mixture is transported through a pipeline to the place where the chemicals need to be added. However, a small amount of precipitation adheres to the inner wall of the pipeline during the transportation of the chemicals, which is not only difficult to clean, but also when changing the chemicals, the precipitation remaining on the inner wall of the pipeline is likely to mix with the new mixture, thus affecting the purity of the new mixture. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide an automatic chemical feeder facilitating pipeline cleaning, which solves the disadvantages that when the existing automatic chemical feeder is in use, the precipitation on the inner wall of the pipeline is not only difficult to clean, but also the precipitation remaining on the inner wall of the pipeline is likely to mix with the new mixture, thus affecting the purity of the new mixture.

[0005] The technical solution of the present invention is as follows:

[0006] An automatic chemical feeder facilitating pipeline cleaning includes a chemical feeder, a wastewater tank, and a water pipe. The chemical feeder is installed on the ground and is used for pre-dissolving the chemicals. The wastewater tank is installed on the ground, and a water pipe is installed between the chemical feeder and the wastewater tank. It further includes a flushing mechanism and a cleaning mechanism. A flushing mechanism for flushing the precipitation is provided on the ground, and a cleaning mechanism for scraping off the precipitation is provided between the chemical feeder and the wastewater tank.

[0007] As a preferred technical solution of the present invention, the flushing mechanism includes a water storage tank, a return pipe, a water pump, a connecting pipe, a first valve, a second valve, and a third valve. The water storage tank is installed on the ground, a return pipe is installed between the water storage tank and the water pipe, the water pump is installed on the ground, the water inlet of the water pump is communicated with the water storage tank, a connecting pipe is installed between the water outlet of the water pump and the water pipe, the first valve is installed on the left side of the water pipe, the second valve is installed on the right side of the water pipe, and the third valve is installed on the upper side of the return pipe. The clear water is pumped into the connecting pipe, the water pipe, and the return pipe through the water pump to flush the precipitation in the water pipe.

[0008] As a preferred technical solution of the present invention, the cleaning mechanism includes a guiding component, a sliding plate, a motor, an annular plate, universal balls, connecting plates, wheels, arc-shaped plates, connecting rods, turbine blades, limiting rings and scraping plates. A guiding component is provided on the left side of the wastewater tank. A sliding plate is slidably mounted on the guiding component. The motor is mounted at the lower part of the chemical feeder. An annular plate is sleeved on the water pipe. The annular plate is movably mounted on the upper side of the sliding plate. Universal balls are provided inside the water pipe. Four connecting plates are all mounted on the universal balls. Wheels are rotatably mounted on the mutually remote sides of the connecting plates. The wheels are all in contact with the inner wall of the water pipe. Arc-shaped plates are mounted between adjacent two connecting plates. Connecting rods are movably mounted on the left and right sides of the universal balls. At least three turbine blades are spacedly mounted on each connecting rod. Limiting rings are slidably mounted between adjacent turbine blades. The outer sides of the limiting rings are all in contact with the inner wall of the water pipe. Scraping plates are mounted on the mutually remote sides of the limiting rings. The scraping plates are all in contact with the inner wall of the water pipe. By driving the threaded rod to rotate through the motor, the sliding plate, the annular plate, the arc-shaped plate, the connecting plates, the wheels, the universal balls, the connecting rods, the turbine blades, the limiting rings and the scraping plates are moved, so that the scraping plates scrape off the precipitates on the inner wall of the water pipe.

[0009] As a preferred technical solution of the present invention, the guiding component includes a guide rail frame and a threaded rod. The guide rail frame is mounted on the left side of the wastewater tank. The sliding plate is slidably connected with the guide rail frame. The threaded rod is rotatably mounted on the upper side of the guide rail frame. The sliding plate is threadedly connected with the threaded rod. The output shaft of the motor is connected with the threaded rod.

[0010] As a preferred technical solution of the present invention, a filtering mechanism for filtering out precipitates is further included. The filtering mechanism includes a cover, a hollow pipe, a movable column, a spring, a movable plate, a filtering frame and a filter screen. The cover is rotatably mounted on the upper side of the water storage tank. At least two hollow pipes are all mounted on the inner bottom of the water storage tank. Movable columns are slidably mounted on the upper sides of the hollow pipes. Springs are mounted between the bottoms of the movable columns and the inner bottom of the water storage tank. A movable plate is mounted between the tops of the movable columns. A filtering frame is placed inside the water storage tank. The filter screen is mounted in the middle of the inner side of the water storage tank.

[0011] As a preferred technical solution of the present invention, an anti-disengagement mechanism for preventing the annular plate from being misaligned with the arc-shaped plate is further included. The anti-disengagement mechanism includes a control panel and a magnetic switch. The control panel is mounted on the front side of the chemical feeder. The control panel is electrically connected with the motor. The magnetic switch is mounted on the front side of the annular plate. The magnetic switch is electrically connected with the control panel.

[0012] As a preferred technical solution of the present invention, a wiping cotton for cleaning the outer wall of the water pipe is further included. The wiping cotton is slidably mounted on the right side of the sliding plate. The wiping cotton is sleeved on the water pipe.

[0013] As a preferred technical solution of the present invention, it further includes a clamping mechanism for clamping the third valve switch. The clamping mechanism includes a fixing plate, a sliding frame, a connecting rod and a clamping rod. The fixing plate is installed on the right side of the chemical feeder, the sliding frame is slidably installed on the right side of the fixing plate, the connecting rod is installed on the switch of the first valve, the connecting rod is movable inside the upper side of the sliding frame, and at least two clamping rods are installed on the lower side of the sliding frame, and the clamping rods all clamp the switch of the third valve.

[0014] As a preferred technical solution of the present invention, the material of the ring plate is iron.

[0015] As a preferred technical solution of the present invention, the material of the arc plate is magnet.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. In the present invention, the clear water is pumped into the water pipe by the water pump, which can wash the inside of the water pipe with the clear water, and the motor drives the threaded rod to rotate, which can scrape off the sediment remaining on the inner wall of the water pipe by the scraper, so as to facilitate the clear water to wash away the sediment remaining in the water pipe, and then facilitate people to clean the sediment remaining inside the water pipe, thereby preventing sediment residue and avoiding the sediment from affecting the purity of the new mixed liquid.

[0018] 2. In the present invention, by arranging the turbine blades, when the mixed liquid in the water pipe contacts the turbine blades, the mixed liquid in the water pipe can drive the turbine blades to rotate, so that the turbine blades stir the mixed liquid, and then reduce the generation of sediment.

[0019] 3. In the present invention, by arranging the filter frame and the filter net, the sediment can be filtered out and accumulated on the filter frame, so as to facilitate people to separately clean the clear water and the sediment in the water storage frame.

[0020] 4. In the present invention, by arranging the wiping cotton, the wiping cotton can wipe the outer wall of the water pipe, so as to facilitate people to clean the outer wall of the water pipe. Description of the Drawings

[0021] Figure 1 It is a three-dimensional structure diagram of the present invention.

[0022] Figure 2 It is a three-dimensional structure diagram of the chemical feeder, the waste water frame and the water pipe of the present invention.

[0023] Figure 3 It is a three-dimensional structure diagram of the flushing mechanism of the present invention.

[0024] Figure 4 It is a three-dimensional structure diagram of the return pipe, the water pump and the connecting pipe of the present invention.

[0025] Figure 5 It is a three-dimensional structure diagram of the cleaning mechanism of the present invention.

[0026] Figure 6 This is a three-dimensional structural schematic diagram of the threaded rod, slide plate and motor of the present invention.

[0027] Figure 7 This is a three-dimensional structural schematic diagram of the ring plate, limiting ring and scraper of the present invention.

[0028] Figure 8 This is a three-dimensional structural schematic diagram of the universal ball, connecting plate and wheel of the present invention.

[0029] Figure 9 This is a three-dimensional structural schematic diagram of the water storage frame and the lid of the present invention.

[0030] Figure 10 This is a three-dimensional structural schematic diagram of the movable column, spring and movable plate of the present invention.

[0031] Figure 11 This is a three-dimensional structural schematic diagram of the anti-disengagement mechanism of the present invention.

[0032] Figure 12 This is an enlarged view of part A of the present invention.

[0033] Figure 13 This is a three-dimensional structural schematic diagram of the water pipe, slide plate and wiping cotton of the present invention.

[0034] Figure 14 This is a three-dimensional structural schematic diagram of the clamping mechanism of the present invention.

[0035] Figure 15 This is a three-dimensional structural schematic diagram of the sliding frame, connecting rod and clamping rod of the present invention.

[0036] In the figure, the markings are: 1: ground, 2: chemical feeder, 3: waste water tank, 31: water pipe, 4: flushing mechanism, 42: water storage frame, 43: return pipe, 44: water pump, 45: connecting pipe, 46: first valve, 47: second valve, 48: third valve, 5: cleaning mechanism, 51: guide rail frame, 52: threaded rod, 53: slide plate, 54: motor, 55: ring plate, 56: universal ball, 57: connecting plate, 58: wheel, 59: arc plate, 591: connecting rod, 592: turbine blade, 593: limiting ring, 594: scraper, 6: filtering mechanism, 61: lid, 62: hollow pipe, 63: movable column, 64: spring, 65: movable plate, 66: filter frame, 67: filter net, 7: anti-disengagement mechanism, 71: control panel, 72: magnetic switch, 8: wiping cotton, 9: clamping mechanism, 91: fixed plate, 92: sliding frame, 93: connecting rod, 94: clamping rod. Detailed implementation manners

[0037] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments of this invention and the descriptions are used to explain the present invention, but do not limit the present invention.

[0038] Embodiment: An automatic chemical feeder that is convenient for cleaning pipelines, as Figures 1 - 8 shown, includes a chemical feeder 2, a wastewater box 3, a water pipe 31, a flushing mechanism 4 and a cleaning mechanism 5. A chemical feeder 2 is provided on the ground 1. Under the action of the chemical feeder 2, the chemical agent can be pre-dissolved. A wastewater box 3 is provided on the ground 1. A water pipe 31 is connected between the chemical feeder 2 and the wastewater box 3. A flushing mechanism 4 is provided on the ground 1. A cleaning mechanism 5 is provided between the chemical feeder 2 and the wastewater box 3.

[0039] As Figure 3 shown in FIGS. 4, the flushing mechanism 4 includes a water storage box 42, a return pipe 43, a water pump 44, a connecting pipe 45, a first valve 46, a second valve 47 and a third valve 48. A water storage box 42 is provided on the ground 1. A return pipe 43 is connected between the upper left side of the water storage box 42 and the water pipe 31. A water pump 44 is provided on the ground 1. By pumping water with the water pump 44, the sediment in the water pipe 31 can be flushed out with clean water. The water inlet of the water pump 44 is connected to the water storage box 42. A connecting pipe 45 is connected between the water outlet of the water pump 44 and the water pipe 31. A first valve 46 is installed on the left side of the water pipe 31. A second valve 47 is installed on the right side of the water pipe 31. A third valve 48 is installed on the upper side of the return pipe 43.

[0040] As Figure 5 shown in FIGS. Figure 6 and Figure 7 FIGS. Figure 8As shown in the figure, the cleaning mechanism 5 includes a guide rail frame 51, a threaded rod 52, a sliding plate 53, a motor 54, an annular plate 55, universal balls 56, a connecting plate 57, wheels 58, an arc plate 59, a connecting rod 591, turbine blades 592, a limiting ring 593 and a scraping plate 594. The lower left side of the wastewater box 3 is connected with a guide rail frame 51. The upper side of the guide rail frame 51 is rotatably connected with a threaded rod 52. The guide rail frame 51 is slidably connected with a sliding plate 53. The sliding plate 53 is threadedly connected with the threaded rod 52. The lower part of the chemical feeder 2 is connected with a motor 54. The output shaft of the motor 54 is connected with the threaded rod 52. An annular plate 55 is sleeved on the water pipe 31. The annular plate 55 is made of iron and is movably installed on the upper side of the sliding plate 53. Universal balls 56 are arranged inside the water pipe 31. Connecting plates 57 are connected to the upper, lower, front and rear sides of each universal ball 56. Wheels 58 are rotatably connected to the mutually remote sides of the four connecting plates 57. The four wheels 58 are all in contact with the inner wall of the water pipe 31. Arc plates 59 are connected between adjacent connecting plates 57. The number of the arc plates 59 is four. The arc plates 59 are made of magnets. Connecting rods 591 are movably connected to the left and right sides of the universal balls 56. Three turbine blades 592 are spacedly connected to each of the two connecting rods 591. Limiting rings 593 are slidably connected between adjacent three turbine blades 592. The outer sides of the two limiting rings 593 are both in contact with the inner wall of the water pipe 31. Scraping plates 594 are connected to the mutually remote sides of the two limiting rings 593. The two scraping plates 594 are both in contact with the inner wall of the water pipe 31. By moving the scraping plates 594, the sediment on the inner wall of the water pipe 31 can be scraped off.

[0041] In the initial state, the first valve 46 and the second valve 47 are both in the open state, and the third valve 48 is in the closed state. When in use, the medicament is added into the dosing machine 2 for pre-dissolution. After the medicament is pre-dissolved in the dosing machine 2, the mixed liquid in the dosing machine 2 is discharged into the waste water tank 3 through the water pipe 31 for use. When the mixed liquid in the water pipe 31 contacts the turbine blade 592, the mixed liquid in the water pipe 31 will drive the turbine blade 592 to rotate, so that the turbine blade 592 stirs the mixed liquid, thereby reducing the generation of precipitation. After all the mixed liquid in the dosing machine 2 is discharged into the waste water tank 3, the first valve 46 and the second valve 47 are closed, then the third valve 48 is opened, and then clean water is added into the water storage tank 42. Then, the clean water in the water storage tank 42 is pumped into the connecting pipe 45 through the water pump 44, so that the clean water flows back into the water storage tank 42 through the connecting pipe 45, the water pipe 31 and the return pipe 43, thereby flushing the inside of the water pipe 31 with the clean water, and further flushing the precipitation remaining inside the water pipe 31 into the water storage tank 42. At the same time, the motor 54 drives the threaded rod 52 to rotate intermittently forward and backward, thereby driving the slide plate 53 and the ring plate 55 to move left and right reciprocally, so that the ring plate 55 drives the arc plate 59, the connecting plate 57, the wheel 58, the universal ball 56, the connecting rod 591, the turbine blade 592, the limiting ring 593 and the scraper 594 to move left and right reciprocally through magnetism, so that the scraper 594 scrapes off the precipitation remaining on the inner wall of the water pipe 31, thereby facilitating the clean water to wash away the precipitation remaining in the water pipe 31, and further facilitating people to clean the precipitation remaining inside the water pipe 31. When the arc plate 59, the connecting plate 57, the wheel 58, the universal ball 56, the connecting rod 591, the turbine blade 592, the limiting ring 593 and the scraper 594 encounter a bend when moving in the water pipe 31, the connecting rod 591 will swing to adjust the moving direction of the turbine blade 592, the limiting ring 593 and the scraper 594, so as to achieve automatic turning. When the cleaning of the precipitation remaining inside the water pipe 31 is completed, stop pumping the clean water in the water storage tank 42 into the connecting pipe 45 through the water pump 44, then close the third valve 48, then open the first valve 46 and the second valve 47, and then clean out the clean water and precipitation in the water storage tank 42.

[0042] Such as Figure 1 , Figure 9 and Figure 10As shown in the figure, it further includes a filtering mechanism 6. The filtering mechanism 6 includes a lid 61, a hollow tube 62, a movable column 63, a spring 64, a movable plate 65, a filter frame 66 and a filter net 67. The upper side of the water storage frame 42 is rotatably connected with a lid 61. The front and rear sides of the left side of the inner bottom of the water storage frame 42 are both connected with a hollow tube 62. The upper sides of the two hollow tubes 62 are both slidably connected with a movable column 63. A spring 64 is connected between the bottom of each of the two movable columns 63 and the inner bottom of the water storage frame 42. A movable plate 65 is connected between the tops of the two movable columns 63. The filter frame 66 is placed on the upper left side of the inner side of the water storage frame 42. The filter net 67 is connected to the middle part of the inner side of the water storage frame 42. Under the action of the filter frame 66 and the filter net 67, it is convenient for people to separately clean the clear water and sediment in the water storage frame 42.

[0043] When people need to add clear water into the water storage frame 42, first pull the lid 61 to rotate and open it, then add clear water into the water storage frame 42, and then push the lid 61 to rotate in the reverse direction to close it, so that the lid 61 covers the top of the water storage frame 42, thereby preventing foreign objects from falling into the water storage frame 42. When the sediment remaining in the water pipe 31 is flushed into the water storage frame 42, both the clear water and the sediment will fall onto the filter frame 66. At this time, the sediment will be filtered out and accumulated on the filter frame 66, and the clear water will pass through the filter frame 66 and the filter net 67. And the clear water passing through the filter frame 66 will squeeze the movable plate 65 and the movable column 63 to move downward, and the spring 64 will be compressed, so that the clear water flows away through the lower part of the filter frame 66, thereby preventing the clear water from flushing the sediment on the filter frame 66 to the right, and further preventing the sediment from accumulating on the upper right side of the filter frame 66. When stopping pumping the clear water in the water storage frame 42 into the connecting pipe 45 through the water pump 44, the clear water flowing into the water storage frame 42 will become less and less. At this time, the spring 64 will slowly reset, and the spring 64 will drive the movable column 63 and the movable plate 65 to slowly move upward and reset. When people need to clean the clear water and sediment in the water storage frame 42, pull the lid 61 to rotate and open it again, then take out the filter frame 66, then clean the sediment on the filter frame 66, then clean the clear water in the water storage frame 42, then put the filter frame 66 back to its original position, and then push the lid 61 to rotate in the reverse direction to close it. In this way, it is convenient for people to separately clean the clear water and sediment in the water storage frame 42.

[0044] As Figure 1 、 Figure 11 and Figure 12 As shown in the figure, it further includes an anti - detachment mechanism 7. The anti - detachment mechanism 7 includes a control panel 71 and a magnetic switch 72. The control panel 71 is bolted to the lower right side of the front of the dosing machine 2. The control panel 71 is electrically connected to the motor 54. The magnetic switch 72 is bolted to the front of the annular plate 55. The magnetic switch 72 is electrically connected to the control panel 71. By means of the magnetic switch 72, it can prevent the annular plate 55 from being magnetically detached from the arc - shaped plate 59 during movement.

[0045] In the initial state, since the arc-shaped plate 59 attracts the ring plate 55 by magnetic force, the ring plate 55 will also be magnetized, so that the magnetic switch 72 is in the open state. When the ring plate 55 moves left and right reciprocally, the ring plate 55 will drive the magnetic switch 72 to move left and right reciprocally. When the ring plate 55 is separated from the arc-shaped plate 59, the ring plate 55 will lose its magnetism, so that the magnetic switch 72 is in the closed state. At this time, the magnetic switch 72 will control the output shaft of the motor 54 to rotate in the reverse direction through the control panel 71, thereby driving the threaded rod 52 to rotate in the reverse direction, and then driving the sliding plate 53 and the ring plate 55 to move in the reverse direction, so that the ring plate 55 returns to the position where it is separated from the arc-shaped plate 59 again, so that the arc-shaped plate 59 attracts the ring plate 55 by magnetic force again, and then the ring plate 55 is magnetized again, so that the magnetic switch 72 is in the open state again, so that the magnetic switch 72 controls the output shaft of the motor 54 to rotate in the forward direction through the control panel 71, thereby driving the threaded rod 52 to rotate in the forward direction, and then driving the sliding plate 53 and the ring plate 55 to move in the forward direction. In this way, it is possible to prevent the ring plate 55 from being separated from the magnetism of the arc-shaped plate 59 during movement.

[0046] As Figure 1 and Figure 13 shown, it further includes a wiping cotton 8. The wiping cotton 8 is slidably connected to the right side of the sliding plate 53. The wiping cotton 8 is sleeved on the water pipe 31. By moving the wiping cotton 8, the outer wall of the water pipe 31 can be wiped.

[0047] By providing the wiping cotton 8, when the sliding plate 53 moves left and right reciprocally, it can drive the wiping cotton 8 to move left and right reciprocally, so that the wiping cotton 8 wipes the outer wall of the water pipe 31, thereby cleaning the outer wall of the water pipe 31.

[0048] As Figure 1 , Figure 14 and Figure 15 shown, it further includes a positioning mechanism 9. The positioning mechanism 9 includes a fixing plate 91, a sliding frame 92, a connecting rod 93 and a clamping rod 94. The fixing plate 91 is bolted to the right side of the medicine adding machine 2. The sliding frame 92 is slidably connected to the right side of the fixing plate 91. The connecting rod 93 is connected to the switch of the first valve 46. The connecting rod 93 moves inside the upper side of the sliding frame 92. Two clamping rods 94 are connected to the lower side of the sliding frame 92. By clamping the switches of the third valve 48 with the two clamping rods 94, it is possible to prevent the third valve 48 from being accidentally opened.

[0049] By using the clamping rod 94 to clamp the switch of the third valve 48, it is possible to prevent the third valve 48 from being accidentally opened, thus avoiding the waste caused by the inflow of the mixed liquid in the water pipe 31 into the return pipe 43 and the water storage frame 42. When the first valve 46 is closed, the switch of the first valve 46 will drive the connecting rod 93 to rotate, causing the connecting rod 93 to squeeze the sliding frame 92 to move backward, thereby driving the clamping rod 94 to move backward, and further causing the clamping rod 94 to release the switch of the third valve 48. After that, people can open the third valve 48. When people close the third valve 48 and then open the first valve 46, the switch of the first valve 46 will drive the connecting rod 93 to reverse and reset, causing the connecting rod 93 to pull the sliding frame 92 to move forward and reset, thereby driving the clamping rod 94 to move forward and reset, and further causing the clamping rod 94 to clamp the switch of the third valve 48.

[0050] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. An automatic chemical feeder for facilitating pipeline cleaning, comprising a chemical feeder (2), a waste water box (3) and a water pipe (31). The chemical feeder (2) is installed on the ground (1), and the chemical feeder (2) is used for pre-dissolving the chemical agent. The waste water box (3) is installed on the ground (1), and a water pipe (31) is installed between the chemical feeder (2) and the waste water box (3). It is characterized in that, It also includes a flushing mechanism (4) and a cleaning mechanism (5). A flushing mechanism (4) for flushing and precipitating is provided on the ground (1), and a cleaning mechanism (5) for scraping off precipitates is provided between the chemical feeder (2) and the wastewater tank (3); The flushing mechanism (4) includes a water storage tank (42), a return pipe (43), a water pump (44), a connecting pipe (45), a first valve (46), a second valve (47) and a third valve (48). The water storage tank (42) is installed on the ground (1). A return pipe (43) is installed between the water storage tank (42) and the water pipe (31). The water pump (44) is installed on the ground (1). The water inlet of the water pump (44) communicates with the water storage tank (42). A connecting pipe (45) is installed between the water outlet of the water pump (44) and the water pipe (31). The first valve (46) is installed on the left side of the water pipe (31). The second valve (47) is installed on the right side of the water pipe (31). The third valve (48) is installed on the upper side of the return pipe (43). The clear water is pumped into the connecting pipe (45), the water pipe (31) and the return pipe (43) by the water pump (44) to flush the precipitates in the water pipe (31); The cleaning mechanism (5) includes a guiding component, a sliding plate (53), a motor (54), an annular plate (55), a universal ball (56), a connecting plate (57), a wheel (58), an arc plate (59), a connecting rod (591), a turbine blade (592), a limiting ring (593) and a scraping plate (594). A guiding component is provided on the left side of the wastewater tank (3). The sliding plate (53) is slidably installed on the guiding component. The motor (54) is installed at the lower part of the chemical feeder (2). An annular plate (55) is sleeved on the water pipe (31). The annular plate (55) is movably installed on the upper side of the sliding plate (53). A universal ball (56) is provided inside the water pipe (31). Four connecting plates (57) are all installed on the universal ball (56). Wheels (58) are rotatably installed on the mutually remote sides of the connecting plates (57). The wheels (58) are all in contact with the inner wall of the water pipe (31). Arc plates (59) are installed between adjacent connecting plates (57). Connecting rods (591) are movably installed on the left and right sides of the universal ball (56). At least three turbine blades (592) are spacedly installed on the connecting rods (591). Limiting rings (593) are slidably installed between adjacent turbine blades (592). The outer sides of the limiting rings (593) are all in contact with the inner wall of the water pipe (31). Scraping plates (594) are installed on the mutually remote sides of the limiting rings (593). The scraping plates (594) are all in contact with the inner wall of the water pipe (31). By driving the threaded rod (52) to rotate by the motor (54), the sliding plate (53), the annular plate (55), the arc plate (59), the connecting plate (57), the wheel (58), the universal ball (56), the connecting rod (591), the turbine blade (592), the limiting ring (593) and the scraping plate (594) are moved, so that the scraping plates (594) scrape off the precipitates on the inner wall of the water pipe (31); The guiding component includes a guide rail frame (51) and a threaded rod (52). The guide rail frame (51) is installed on the left side of the wastewater frame (3). The sliding plate (53) is slidably connected to the guide rail frame (51). The threaded rod (52) is rotatably installed on the upper side of the guide rail frame (51). The sliding plate (53) is threadedly connected to the threaded rod (52). The output shaft of the motor (54) is connected to the threaded rod (52). The material of the ring plate (55) is iron, and the material of the arc plate (59) is magnet.

2. The automatic chemical feeder for facilitating pipeline cleaning according to claim 1, characterized in that, It further includes a filtering mechanism (6) for filtering out precipitates. The filtering mechanism (6) includes a lid (61), a hollow tube (62), a movable column (63), a spring (64), a movable plate (65), a filter frame (66), and a filter net (67). The lid (61) is rotatably installed on the upper side of the water storage frame (42). At least two hollow tubes (62) are installed at the inner bottom of the water storage frame (42). Movable columns (63) are slidably installed on the upper sides of the hollow tubes (62). Springs (64) are installed between the bottoms of the movable columns (63) and the inner bottom of the water storage frame (42). A movable plate (65) is installed between the tops of the movable columns (63). A filter frame (66) is placed inside the water storage frame (42). The filter net (67) is installed in the middle of the inner side of the water storage frame (42).

3. The automatic chemical feeder for facilitating the cleaning of pipelines according to claim 2, characterized in that, It further includes an anti - detachment mechanism (7) for preventing the ring plate (55) and the arc plate (59) from being misaligned. The anti - detachment mechanism (7) includes a control panel (71) and a magnetic switch (72). The control panel (71) is installed on the front side of the dosing machine (2). The control panel (71) is electrically connected to the motor (54). The magnetic switch (72) is installed on the front side of the ring plate (55). The magnetic switch (72) is electrically connected to the control panel (71).

4. The automatic chemical feeder for facilitating pipeline cleaning according to claim 3, wherein It further includes a wiping cotton (8) for cleaning the outer wall of the water pipe (31). The wiping cotton (8) is slidably installed on the right side of the sliding plate (53). The wiping cotton (8) is sleeved on the water pipe (31).

5. The automatic chemical feeder for facilitating pipeline cleaning according to claim 4, wherein It further includes a positioning mechanism (9) for clamping the switch of the third valve (48). The positioning mechanism (9) includes a fixing plate (91), a sliding frame (92), a connecting rod (93), and a clamping rod (94). The fixing plate (91) is installed on the right side of the dosing machine (2). The sliding frame (92) is slidably installed on the right side of the fixing plate (91). The connecting rod (93) is installed on the switch of the first valve (46). The connecting rod (93) moves inside the upper side of the sliding frame (92). At least two clamping rods (94) are installed on the lower side of the sliding frame (92). The clamping rods (94) all clamp the switch of the third valve (48).

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