An anti-clogging rotary rake-tooth mechanical grille for municipal use

Abstract

The present invention discloses an anti-clogging rotary rake-tooth mechanical grille for municipal use, comprising a frame, a driving device, a dirt removal device, and a cleaning device; the frame comprises side panels and a top panel; the driving device comprises a driving shaft, a driven shaft, and a first motor; the cleaning device comprises a device box, a pneumatic rod, and an air supply mechanism; the air supply mechanism comprises an air bag, an air supply bin, and a main air pipe, the pneumatic rod being connected to one side of the air supply bin, a bronchial pipe being provided on the other side of the air supply bin, a control rod being provided in the air supply bin, a transmission shaft being provided above the air bag, a second motor being provided at one end of the transmission shaft, an extrusion wheel being provided on the transmission shaft, a dial being provided at the other end of the transmission shaft, and a groove wheel being provided at one end of the control rod. The first motor of the present invention can drive the driving shaft to rotate, so that the rake tooth plates intercept garbage in the water flow, and the extrusion wheel can squeeze the air bag, so that the pneumatic rod can extend to clean between the rake tooth plates, thereby preventing the gaps between the rake tooth plates from being clogged.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment equipment, in particular to an anti-clogging rotary rake-tooth mechanical grille for municipal use. Background Art

[0002] A screen machine is a solid-liquid separation device that continuously removes debris from fluids. It is an indispensable specialized equipment in production processes such as municipal sewage treatment, water plants, power plant water intakes, textiles, food processing, papermaking, and leather. The screen's rake teeth block various particles and suspended matter in the sewage, preventing them from entering the next step and affecting the treatment effect.

[0003] The rotary screen machine is driven by a motor reducer, and the rake chain rotates in the opposite direction of the water flow. The garbage is driven above the water surface during the rotation of the rake chain. During the continued movement, the garbage loses support after moving to the highest point and falls under the action of gravity.

[0004] During the cleaning process of existing rotary screen machines, due to the variety of waste, some debris will cling to the rake teeth and be difficult to remove by gravity. Therefore, existing screen machines are generally equipped with a separate sweeper, a set of counter-rotating brush wheels that clean the rake teeth in the opposite direction. However, since these sweepers are mostly made of soft bristles, they are difficult to effectively remove dirt and may even cause contamination and blockage of the sweeper.

[0005] Therefore, a kind of anti-blocking type rotary rake type mechanical grille that is used for municipal administration is badly in need now. Summary of the Invention

[0006] In order to solve the above technical problems, the present invention provides an anti-clogging rotary rake-tooth mechanical grille for municipal use.

[0007] The technical solution of the present invention is: an anti-clogging rotary rake-tooth mechanical grille for municipal use, comprising a frame, a driving device, a decontamination device and a cleaning device;

[0008] The frame includes two parallel side panels and a top panel for connecting the upper ends of the two side panels;

[0009] The driving device includes a driving shaft arranged at the upper end of the frame, a driven shaft arranged at the lower end of the frame, and a first motor arranged on the top plate, the two ends of the driving shaft and the driven shaft respectively pass through the side plates on both sides of the frame, and a second pulley is fixedly provided on one end of the driving shaft, and a first pulley is fixedly provided on the output shaft of the first motor for being connected to the second pulley through a transmission belt for belt transmission;

[0010] The dirt removal device includes two grille chains sleeved on the driving shaft and the driven shaft, and a plurality of connecting rods arranged at equal intervals between the two grille chains, wherein the connecting rods are provided with a plurality of rake tooth plates at equal intervals along their axial directions;

[0011] The cleaning device includes a device box arranged in the frame, a plurality of pneumatic rods provided on the side wall of the device box close to the grille chain, and an air supply mechanism arranged in the device box and used to supply air to the pneumatic rods. The device box is located below the driving shaft and fixedly connected to the side plates on both sides of the frame. The plurality of pneumatic rods are staggered with the plurality of rake tooth plates.

[0012] The cam is connected with the air bag by the air filter, and the air filter is connected with the air filter by the air filter.

[0013] Description: The first motor of the present invention can drive the driving shaft to rotate, and the driving shaft drives the grille chain to rotate, so that the rake tooth plates intercept garbage in the water flow, and the second motor drives the transmission shaft to rotate, and the extrusion wheel can squeeze the air bag. The transmission shaft can drive the control rod to rotate through the dial and the groove wheel to control the inflation and deflation of the pneumatic rod, so that during the rotation of the grille chain, the pneumatic rod between every two connecting rods can be extended and retracted, so that the pneumatic rod can be extended to clean between the rake tooth plates, avoiding clogging of the gap between the rake tooth plates and not hindering the normal operation of the grille chain.

[0014] Furthermore, the control rod is a round rod with upper and lower arc surfaces cut off along the length direction of the rod, and a plurality of air holes for connecting the pneumatic rod and the bronchus are provided on the arc surfaces on the left and right sides of the control rod.

[0015] Note: Every 90° rotation of the control lever of the above structure can switch the connection state between the gas pressure rod and the bronchus, ensuring that the gas pressure rod can be accurately inflated and deflated.

[0016] Furthermore, the pneumatic rod consists of a sleeve and a sliding rod arranged in the sleeve, the sliding rod passes through the top surface of the sleeve, a piston is slidably connected in the sleeve, the piston is fixedly connected to the sliding rod, and a spring is sleeved on the sliding rod between the piston and the top surface of the sleeve.

[0017] Description: When the pneumatic rod of the above structure is inflated, the piston will push the slide rod to slide, so that the slide rod can extend to clean the gap between the rake teeth plates. After the air is deflated, the slide rod can be reset under the action of the spring.

[0018] Furthermore, a flushing water pipe for flushing the rake tooth plates is provided on one side of the grille chain, and both ends of the flushing water pipe pass through the side plates on both sides of the frame respectively.

[0019] Note: The flushing water pipe can spray flushing water to flush the rake plate to improve the cleaning effect of the rake plate.

[0020] Furthermore, the frame is tilted, and the tilt angle is between 60 and 80 degrees.

[0021] Note: The tilted rack is helpful to intercept the garbage in the water, and the limited tilt angle can ensure that the garbage can fall effectively under the action of gravity.

[0022] Furthermore, a scraper is provided above the device box, and both ends of the scraper pass through the slide grooves provided laterally on the two side panels respectively. One end of the two slide grooves is fixedly connected to the scraper through the telescopic airbags provided therein, and the telescopic airbags are connected to the airbags through the pipes provided in the corresponding side panels.

[0023] Note: When the extrusion wheel squeezes the airbag, the gas in the airbag can enter the telescopic airbag, causing the telescopic airbag to expand and push the scraper to slide in the chute to clean the sewage and garbage on the top surface of the device box to avoid garbage accumulation on the top surface of the device box.

[0024] Furthermore, both ends of the scraper are slidably connected to the chute via pulleys.

[0025] Description: The pulley connection can effectively reduce friction, reduce scraper wear, and increase service life. It also has low manufacturing costs and good practicality.

[0026] Furthermore, the scraper is the same length as the device box.

[0027] Note: Limiting the scraper length can ensure that the scraper's moving area can completely cover the device box, avoiding any areas that are missed by the scraper.

[0028] Furthermore, a liquid storage box for storing cleaning agent is laterally provided on the side wall of the device box above the gas pressure rod, and a control box for controlling the release of the cleaning agent in the liquid storage box is provided on the bottom surface of the liquid storage box;

[0029] A slide bar is slidably connected in the control box, a plurality of liquid supply pipes for communicating with the side walls of the sleeve in a one-to-one correspondence are provided on the bottom surface of the control box, the liquid supply pipes are located between the piston and the top surface of the sleeve, a plurality of through holes corresponding to the liquid supply pipes are provided on the bottom surface of the liquid storage box, a plurality of through holes for controlling the liquid storage box to communicate with or block the liquid supply pipes in a one-to-one correspondence are provided on the slide bar, a second air bag is provided between one end of the slide bar and the side wall of the control box, a spring is provided between the other end of the slide bar and the side wall of the control box, and a release hole for releasing the cleaning agent is provided on the top surface of the sleeve;

[0030] A third air bag is provided in a group of symmetrical grooves of the sheave, and the third air bag is communicated with the second air bag through a pipeline. A sponge tube is fixedly sleeved on each of the sliding rods.

[0031] Description: When the dial pushes the groove wheel to rotate, the dial will squeeze the third airbag, so that the gas in the third airbag is filled into the second airbag. The second airbag pushes the slider to slide so that the cleaning agent in the liquid storage box enters the sleeve. The piston will push the cleaning agent to be released from the release hole when inflated and be absorbed by the sponge tube, so that the sponge tube can absorb the cleaning agent to clean the gap between the rake teeth, further improving the cleaning effect.

[0032] The beneficial effects of the present invention are:

[0033] (1) The first motor of the present invention can drive the driving shaft to rotate, and the driving shaft drives the grille chain to rotate, so that the rake plates intercept garbage in the water flow, and the extrusion wheel can squeeze the airbag during the process of the second motor driving the transmission shaft to rotate, so that the pneumatic rod can extend to clean between the rake plates, thereby avoiding blockage of the gap between the rake plates.

[0034] (2) The transmission shaft of the present invention can drive the control rod to rotate through the dial and the groove wheel to control the inflation and deflation of the pneumatic rod, so that during the rotation of the grille chain, the pneumatic rod between every two connecting rods can be inflated and deflated once, thereby avoiding obstruction of the normal operation of the grille chain when the pneumatic rod is extended.

[0035] (3) When the extrusion wheel of the present invention squeezes the airbag, the gas in the airbag can enter the telescopic airbag, causing the telescopic airbag to expand and push the scraper to slide in the chute to clean the sewage and garbage on the top surface of the device box, thereby avoiding garbage accumulation on the top surface of the device box. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present invention;

[0037] Figure 2 This is a schematic diagram of the internal structure of a rack according to embodiment 1 of the present invention;

[0038] Figure 3 This is a schematic diagram of the connecting rod structure of Example 1 of the present invention;

[0039] Figure 4 This is a schematic structural diagram of a cleaning device according to embodiment 1 of the present invention;

[0040] Figure 5 This is a schematic diagram of the internal structure of the device box according to embodiment 1 of the present invention;

[0041] Figure 6 This is a schematic diagram of the sheave structure of Example 1 of the present invention;

[0042] Figure 7 This is a schematic diagram of the control rod structure of Example 1 of the present invention;

[0043] Figure 8 This is a schematic diagram of the structure of the gas pressure rod in Example 1 of the present invention;

[0044] Figure 9 This is a schematic diagram of the scraper structure of Example 2 of the present invention;

[0045] Figure 10 This is a schematic diagram of the structure of a telescopic airbag according to embodiment 2 of the present invention;

[0046] Figure 11 This is a schematic diagram of the structure of the device box of Example 3 of the present invention;

[0047] Figure 12 This is a schematic diagram of the internal structure of the liquid storage box according to embodiment 3 of the present invention;

[0048] Figure 13 This is a schematic diagram of the structure of the gas pressure rod in Example 3 of the present invention;

[0049] Among them, 1-frame, 11-side plate, 12-top plate, 13-flushing water pipe, 2-driving device, 21-driving shaft, 22-driven shaft, 23-first motor, 24-first pulley, 25-second pulley, 3-dirt removal device, 31-grid chain, 32-connecting rod, 33-rake tooth plate, 4-cleaning device, 41-device box, 42-pneumatic rod, 421-sleeve, 422-slide rod, 423-piston, 43-airbag, 44-air supply chamber, 441-control rod, 442-groove pulley, 443-third airbag, 45-main air pipe, 451-bronchial tube, 46-drive shaft, 461-second motor, 462-extrusion wheel, 463-dial, 47-scraper, 48-telescopic airbag, 49-liquid storage box, 491-control box, 492-slide, 493-second airbag. DETAILED DESCRIPTION

[0050] The present invention will be further described in detail below in conjunction with specific implementation methods to better demonstrate the advantages of the present invention.

[0051] Example 1

[0052] like Figure 1As shown, an anti-clogging rotary rake-tooth mechanical grille for municipal use includes a frame 1, a driving device 2, a decontamination device 3, and a cleaning device 4;

[0053] The frame 1 includes two parallel side panels 11 and a top panel 12 for connecting the upper ends of the two side panels 11;

[0054] like Figure 2 As shown, the driving device 2 includes a driving shaft 21 provided at the upper end of the frame 1, a driven shaft 22 provided at the lower end of the frame 1, and a first motor 23 provided on the top plate 12. The first motor 23 adopts a commercially available motor. The left and right ends of the driving shaft 21 and the driven shaft 22 respectively pass through the side plates 11 on both sides of the frame 1, and the right end of the driving shaft 21 is fixedly sleeved with a second pulley 25. The output shaft of the first motor 23 is fixedly sleeved with a first pulley 24 for connecting to the second pulley 25 through a transmission belt for belt transmission.

[0055] like Figure 3 As shown, the dirt removal device 3 includes two grille chains 31 sleeved on the driving shaft 21 and the driven shaft 22, and a plurality of connecting rods 32 arranged at equal intervals between the two grille chains 31. The connecting rod 32 is provided with a plurality of rake teeth 33 at equal intervals along its axial direction.

[0056] like Figure 4 As shown, the cleaning device 4 includes a device box 41 provided in the frame 1, a plurality of pneumatic rods 42 provided on the left side wall of the device box 41, and an air supply mechanism provided in the device box 41 and used to supply air to the pneumatic rods 42. The device box 41 is provided below the driving shaft 21 and is fixedly connected to the side plates 11 on both sides of the frame 1. The plurality of pneumatic rods 42 are staggered with the plurality of rake tooth plates 33.

[0057] like Figure 5 As shown, the air supply mechanism includes an air bag 43, an air supply chamber 44 and a main air pipe 45. The air bag 43 is provided with an air inlet, and a one-way valve is provided at the air inlet. The one-way valve is connected to the air bag 43 in one direction. The main air pipe 45 is connected to the air bag 43 through a pipeline. The one-way valve is provided on the pipeline. The one-way valve is connected to the air bag 43 in one direction to the main air pipe 45.

[0058] Several gas pressure rods 42 pass through the left side wall of the device box 41 and are connected to the left side of the air supply chamber 44. The right side of the air supply chamber 44 is provided with several bronchi 451 corresponding to the gas pressure rods 42. Several of the bronchi 451 are connected to the side wall of the main air pipe 45.

[0059] like Figure 7As shown, the air supply chamber 44 is laterally connected to a control rod 441 that is rotated to control the bronchial tube 451 to inflate or deflate the air pressure rod 42. A transmission shaft 46 is provided above the air bag 43. The left and right ends of the transmission shaft 46 pass through the side wall and side plate 11 of the device box 41 in sequence.

[0060] like Figure 6 As shown, the left end of the transmission shaft 46 is provided with a second motor 461, which is a commercially available motor. The transmission shaft 46 located in the device box 41 is fixedly sleeved with an extrusion wheel 462 for reciprocatingly squeezing the airbag 43 by rotation. The right end of the transmission shaft 46 is sleeved with a dial 463. The right end of the control rod 441 passes through the side wall of the device box 41 and is sleeved with a groove wheel 442 for cooperating with the rotation of the dial 463. The dial 463 drives the groove wheel 442 to rotate through the lever provided thereon and the groove on the groove wheel 442;

[0061] The control rod 441 is a round rod with arc surfaces cut off on the upper and lower sides along the length of the rod, and a plurality of air holes for connecting the pneumatic rod 42 and the bronchus 451 are provided on the arc surfaces on the left and right sides of the control rod 441;

[0062] like Figure 8 As shown, the pneumatic rod 42 is composed of a sleeve 421 and a slide rod 422 arranged in the sleeve 421. The slide rod 422 passes through the top surface of the sleeve 421. A piston 423 is slidably connected in the sleeve 421. The piston 423 is fixedly connected to the slide rod 422, and a spring is sleeved on the slide rod 422 between the piston 423 and the top surface of the sleeve 421.

[0063] A flushing water pipe 13 for flushing the rake tooth plate 33 is provided on the right side of the grille chain 31. The left and right ends of the flushing water pipe 13 pass through the side plates 11 on both sides of the frame 1 respectively; the frame 1 is tilted and the tilt angle is 70°.

[0064] The working principle of the above-mentioned grille is as follows: the first motor 23 is started, the first motor 23 drives the driving shaft 21 to rotate, and the driving shaft 21 drives the grille chain 31 to move upward. When the water flows through the grille chain 31, the garbage in the water flow is blocked by the rake plate 33 and moves upward with the grille chain 31. When the rake plate 33 moves to the uppermost end, the rake plate 33 starts to move downward, and the garbage on the rake plate 33 falls under the action of gravity;

[0065] The rake plate 33 can be flushed by passing flushing water into the flushing water pipe 13. In the initial state, the pneumatic rod 42 and the bronchial tube 451 are not connected. When the rake plate 33 moves to the position where the device box 41 is located, the second motor 461 drives the transmission shaft 46 to start rotating. The transmission shaft 46 drives the dial 463 to rotate. The rotating dial 463 turns the groove wheel 442, so that the groove wheel 442 drives the control rod 441 to rotate 90 degrees.

[0066] At this time, the air hole on the control rod 441 is aligned with the bronchial tube 451, and the pneumatic rod 42 and the bronchial tube 451 are switched to a connected state. As the transmission shaft 46 continues to rotate, the transmission shaft 46 drives the extrusion wheel 462 to squeeze the air bag 43. At this time, the gas in the air bag 43 is filled into the pneumatic rod 42 through the main air pipe 45. Under the action of air pressure, the piston 423 pushes the sliding rod 422 to extend. The extended pneumatic rod 42 pushes out the blockage in the gap between the rake teeth 33 during the movement of the grille chain 31;

[0067] When the rake tooth plate 33 on the next connecting rod 32 is about to move to the position of the device box 41, the second motor 461 continues to rotate one circle. At this time, the rotating dial 463 turns the groove wheel 442 again, so that the groove wheel 442 drives the control rod 441 to continue to rotate 90°. At this time, the air hole and the bronchial tube 451 are no longer aligned, and the pneumatic rod 42 and the bronchial tube 451 are switched to an unconnected state. The gas in the pneumatic rod 42 is discharged from the gap between the air supply bin 44 and the control rod 441. Under the action of the spring, the pneumatic rod 42 begins to reset and shorten to avoid affecting the normal operation of the grille chain 31.

[0068] Example 2

[0069] like Figure 9 、 10 As shown, this embodiment is basically the same as embodiment 1, except that a scraper 47 is provided above the device box 41, and the left and right ends of the scraper 47 respectively pass through the slide grooves horizontally provided on the two side panels 11, and the left ends of the two slide grooves are fixedly connected to the scraper 47 through the telescopic airbags 48 provided therein, and the telescopic airbags 48 are connected to the airbags 43 through the pipes provided in the corresponding side panels 11; the left and right ends of the scraper 47 are slidably connected to the slide grooves through pulleys; the length of the scraper 47 and the device box 41 are both 60 cm.

[0070] The working principle of the above structure is: when the second motor 461 drives the extrusion wheel 462 to squeeze the airbag 43 through the transmission shaft 46, the gas in the airbag 43 will enter the telescopic airbag 48 through the pipeline, and the telescopic airbag 48 will inflate and push the scraper 47 to slide along the slide groove. During the sliding process of the scraper 47, the garbage on the top surface of the device box 41 will be pushed down. When the airbag 43 begins to absorb air and recover, the telescopic airbag 48 begins to shrink and drive the scraper 47 to reset.

[0071] Example 3

[0072] like Figure 11As shown, this embodiment is basically the same as the embodiment 1, except that a liquid storage box 49 for storing cleaning agent is provided laterally on the side wall of the device box 41 above the gas pressure rod 42, and a control box 491 for controlling the release of the cleaning agent in the liquid storage box 49 is provided on the bottom surface of the liquid storage box 49;

[0073] like Figure 12 As shown, a slide bar 492 is slidably connected in the control box 491, and a plurality of liquid supply pipes for communicating with the side walls of the sleeve 421 in a one-to-one manner are provided on the bottom surface of the control box 491. The liquid supply pipes are located between the piston 423 and the top surface of the sleeve 421. The bottom surface of the liquid storage box 49 is provided with a plurality of through holes corresponding to the liquid supply pipes. The slide bar 492 is provided with a plurality of through holes that are connected or blocked in a one-to-one manner by sliding the liquid storage box 49. A second air bag 493 is provided between the left end of the slide bar 492 and the side wall of the control box 491, and a spring is provided between the right end of the slide bar 492 and the side wall of the control box 491. Figure 13 As shown, a release hole for releasing the cleaning agent is provided on the top surface of the sleeve 421;

[0074] A third airbag 443 is provided in a group of symmetrical grooves of the groove wheel 442. A group of symmetrical grooves are two symmetrical grooves when the pneumatic rod 42 and the bronchus 451 are switched to a connected state. The third airbag 443 is connected to the second airbag 493 through a pipe. The second airbag 493 is connected to the inside of the control rod 441. The pipe is rotatably connected and connected to the control rod 441. A sponge tube is fixedly sleeved on the sliding rod 422, and the sponge tube is a commercially available product.

[0075] The working principle of the liquid storage box 49 is as follows: in the initial state, the pneumatic rod 42 and the bronchial tube 451 are not connected. The dial 463 drives the groove wheel 442 to rotate. At this time, the lever on the dial 463 squeezes the third air bag 443. The third air bag 443 is pressurized and fills the gas into the second air bag 493. The inflation of the second air bag 493 pushes the slide 492 to slide. After the slide 492 slides, the through hole on the slide 492 is aligned with the liquid supply pipe. At this time, the liquid storage box 49 is connected to the liquid supply pipe, and the cleaning agent in the liquid storage box 49 enters between the piston 423 and the top surface of the sleeve 421 through the liquid supply pipe.

[0076] As the dial 463 continues to rotate, the pneumatic rod 42 and the bronchial tube 451 are switched to a connected state, the dial rod no longer squeezes the third air bag 443, and the slide bar 492 begins to reset under the action of the spring. When the transmission shaft 46 drives the extrusion wheel 462 to squeeze the air bag 43, the piston 423 will push the cleaning agent in the sleeve 421 to be released from the release hole under the action of air pressure, the sponge tube will absorb the cleaning agent, and as the slide bar 422 extends, the gap between the rake teeth plate 33 will be cleaned.

Claims

1. An anti-clogging rotary rake-tooth mechanical grille for municipal use, characterized in that: It comprises a frame (1), a driving device (2), a decontamination device (3) and a cleaning device (4); The frame (1) comprises two side panels (11) arranged in parallel and a top panel (12) for connecting the upper ends of the two side panels (11); The driving device (2) comprises a driving shaft (21) arranged at the upper end of the frame (1), a driven shaft (22) arranged at the lower end of the frame (1), and a first motor (23) arranged on the top plate (12); the two ends of the driving shaft (21) and the driven shaft (22) respectively pass through the side plates (11) on both sides of the frame (1); and a second pulley (25) is fixedly sleeved on one end of the driving shaft (21); and a first pulley (24) for connecting to the second pulley (25) through a transmission belt is fixedly sleeved on the output shaft of the first motor (23); The dirt removal device (3) comprises two grille chains (31) sleeved on a driving shaft (21) and a driven shaft (22), and a plurality of connecting rods (32) arranged at equal intervals between the two grille chains (31), wherein the connecting rods (32) are provided with a plurality of rake tooth plates (33) at equal intervals along their axial directions; The cleaning device (4) comprises a device box (41) arranged in the frame (1), a plurality of pneumatic rods (42) arranged on the side wall of the device box (41) close to the grille chain (31), and an air supply mechanism arranged in the device box (41) and used for supplying air to the pneumatic rods (42), the device box (41) is located below the driving shaft (21) and is fixedly connected to the side plates (11) on both sides of the frame (1), and the plurality of pneumatic rods (42) and the plurality of rake tooth plates (33) are staggered. The air supply mechanism includes an air bag (43), an air supply bin (44) and a main air pipe (45). The air bag (43) is provided with an air inlet, and a one-way valve is provided at the air inlet. The main air pipe (45) is connected to the air bag (43) through a pipeline, and a one-way valve is provided on the pipeline. Several air pressure rods (42) pass through the side wall of the device box (41) and are connected to one side of the air supply bin (44). Several bronchial tubes (451) corresponding to the air pressure rods (42) are provided on the other side of the air supply bin (44). Several of the bronchial tubes (451) are connected to the side wall of the main air pipe (45). The air supply bin (44) is connected to the bronchial tube (45) by rotating the bronchial tube (45) in a horizontal direction. 1) A control rod (441) for inflating or deflating the air pressure rod (42); a transmission shaft (46) is provided above the air bag (43); both ends of the transmission shaft (46) pass through the side wall and the side plate (11) of the device box (41) in sequence; a second motor (461) is provided at one end of the transmission shaft (46); an extrusion wheel (462) for reciprocatingly extruding the air bag (43) by rotating is fixedly sleeved on the transmission shaft (46) located in the device box (41); a dial (463) is sleeved on the other end of the transmission shaft (46); one end of the control rod (441) passes through the side wall of the device box (41) and is sleeved with a groove wheel (442) for cooperating with the rotation of the dial (463); The pneumatic rod (42) is composed of a sleeve (421) and a slide rod (422) arranged in the sleeve (421), the slide rod (422) passes through the top surface of the sleeve (421), a piston (423) is slidably connected in the sleeve (421), the piston (423) is fixedly connected to the slide rod (422), and a spring is sleeved on the slide rod (422) between the piston (423) and the top surface of the sleeve (421); A liquid storage box (49) for storing cleaning agent is laterally provided on the side wall of the device box (41) above the pneumatic rod (42), and a control box (491) for controlling the release of the cleaning agent in the liquid storage box (49) is provided on the bottom surface of the liquid storage box (49); The control box (491) is slidably connected with a slide bar (492), and the bottom surface of the control box (491) is provided with a plurality of liquid supply pipes for correspondingly communicating with the side wall of the sleeve (421). The liquid supply pipes are located between the piston (423) and the top surface of the sleeve (421). The bottom surface of the liquid storage box (49) is provided with a plurality of through holes corresponding to the liquid supply pipes. The slide bar (492) is provided with a plurality of through holes that are connected or blocked with the liquid supply pipes by sliding the liquid storage box (49). A second air bag (493) is provided between one end of the slide bar (492) and the side wall of the control box (491), and a spring is provided between the other end of the slide bar (492) and the side wall of the control box (491). A release hole for releasing the cleaning agent is provided on the top surface of the sleeve (421); A third air bag (443) is provided in a group of symmetrical grooves of the groove wheel (442), and the third air bag (443) is connected with the second air bag (493) through a pipeline. A sponge tube is fixedly sleeved on each of the sliding rods (422).

2. The anti-clogging rotary rake-tooth mechanical grille for municipal use according to claim 1, characterized in that: The control rod (441) is a round rod with arc surfaces cut off on the upper and lower sides along the length direction of the rod, and a plurality of air holes for connecting the pneumatic rod (42) and the bronchus (451) are provided on the arc surfaces on the left and right sides of the control rod (441).

3. The anti-clogging rotary rake-tooth mechanical grille for municipal use according to claim 1, characterized in that: A flushing water pipe (13) for flushing the rake tooth plate (33) is provided on one side of the grille chain (31), and both ends of the flushing water pipe (13) pass through the side plates (11) on both sides of the frame (1).

4. The anti-clogging rotary rake-tooth mechanical grille for municipal use according to claim 1, characterized in that: The frame (1) is tilted, and the tilt angle is between 60 and 80 degrees.

5. The anti-clogging rotary rake-tooth mechanical grille for municipal use according to claim 1, characterized in that: A scraper (47) is provided above the device box (41), and the two ends of the scraper (47) respectively pass through the slide grooves provided transversely on the two side plates (11). One end of the two slide grooves is fixedly connected to the scraper (47) through the telescopic airbags (48) provided therein, and the telescopic airbags (48) are connected to the airbags (43) through the pipes provided in the corresponding side plates (11).

6. The anti-clogging rotary rake-tooth mechanical grille for municipal use according to claim 5, characterized in that: Both ends of the scraper (47) are slidably connected to the chute via pulleys.

7. The anti-clogging rotary rake-tooth mechanical grille for municipal use according to claim 5, characterized in that: The scraper (47) has the same length as the device box (41).

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