A municipal rainwater treatment grille machine

Abstract

The application belongs to the technical field of grating machines, and discloses a municipal rainwater treatment grating machine, which comprises two mounting racks, a plurality of transmission rods rotatably arranged between the two mounting racks, chain wheels fixedly arranged on the transmission rods, chains commonly engaged on the chain wheels, a motor arranged on one of the mounting racks and used for driving the transmission rods to rotate, a plurality of connecting rods rotatably arranged on the chains, cleaning hooks fixedly arranged on the connecting rods, a shaking mechanism arranged on the mounting racks and used for shaking the connecting rods and the cleaning hooks when garbage is discharged, and a gas supply mechanism arranged on the mounting racks. The shaking mechanism comprises a connecting assembly and a shaking assembly. The connecting assembly comprises a connecting shaft, a limiting sleeve and a limiting plate. Through improvement on the structure of the prior art, the garbage can be easily dropped from the cleaning hooks or the connecting rods under the action of shaking and gravity of the impurities, and the filtering effect of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of bar screen technology, and in particular to a bar screen for municipal rainwater treatment. Background Technology

[0002] Bar screens are mainly used to intercept and remove larger solid pollutants such as tree branches, plastic bags, and fallen leaves mixed in municipal rainwater to prevent clogging or wear of subsequent treatment equipment. The equipment usually includes a frame, drive unit, bar screen tooth assembly, etc. The drive unit drives the bar screen tooth assembly to reciprocate or rotate on the bar screen.

[0003] Chinese utility model patent CN120001106A discloses a rotary bar screen for preliminary treatment of municipal rainwater. The screen includes a base with an outer shell at its upper end. An octagonal turntable is rotatably mounted on the bottom left and right sides of the base's inner side, and another octagonal turntable is rotatably mounted on the top left and right sides of the outer shell's inner side. The two octagonal turntables on the same side are connected by a chain assembly. A bar screen is rotatably mounted between the two chain assemblies. A cleaning assembly is located inside the outer shell, comprising a first water pipe and a sponge. The first water pipe is located in the middle of the inner shell's inner side and has a nozzle. A drainage trough is located below the first water pipe. The sponge is located at the top of the inner shell's inner side, abutting against the inner surface of the bar screen. A transmission assembly is located at the top of the outer shell, connected to the sponge and chain assemblies, driving the chain assemblies and sponge to rotate independently.

[0004] There is a rotary bar screen for preliminary treatment of municipal rainwater. It controls the bar screen to rotate from a vertical to a horizontal position through the cooperation of gears and racks, and the garbage falls into the sewage ditch by its own weight. However, for some sticky impurities, it is difficult for them to be removed by their own weight alone. The impurities that are not removed will re-enter the water area with the hooks and mix with the water flow, which is not conducive to improving the filtration effect of the device. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a bar screen for municipal rainwater treatment.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a bar screen for municipal rainwater treatment, comprising two mounting frames, with multiple transmission rods rotatably mounted between the two mounting frames, each transmission rod having a sprocket fixedly mounted on it, and a chain meshing with each sprocket, one of the mounting frames being equipped with a motor for driving the transmission rods to rotate, multiple connecting rods rotatably mounted on the chain, each connecting rod having a cleaning hook fixedly mounted on it, the mounting frame being equipped with a shaking mechanism for generating vibration of the connecting rods and cleaning hooks during garbage discharge, and the mounting frame being equipped with an air supply mechanism.

[0007] By adopting the above technical solution, after the motor starts working, it drives the transmission rod to rotate, which in turn drives the sprocket fixed to the transmission rod, the chain meshing with the sprocket, the connecting rod connected to the chain, and the cleaning hook connected to the connecting rod to rotate, thereby realizing the cyclical movement of the cleaning hook. During this process, the cleaning hook will carry the garbage to the discharge position. At this time, the shaking mechanism will cause the connecting rod and the cleaning hook to shake, shaking the sticky impurities attached to the connecting rod and the cleaning hook to the storage box or storage cart set at the discharge position of the device. Under the action of shaking and the gravity of the impurities themselves, the garbage is easily detached from the cleaning hook or the connecting rod, improving the filtration effect of the device.

[0008] Furthermore, one of the mounting brackets is provided with a sliding groove, and the shaking mechanism includes a connecting component. The connecting component includes a connecting shaft that passes through and is rotatably connected to the chain, a limiting sleeve fixed to the chain, and a limiting plate that is fixedly sleeved on the connecting shaft and located inside the limiting sleeve. The connecting shaft is fixed and coaxially arranged with the connecting rod. The connecting shaft passes through the limiting sleeve and is rotatably connected. The limiting sleeve passes into the sliding groove. The shaking mechanism also includes a shaking component for driving the connecting shaft to reciprocate and shake.

[0009] By adopting the above technical solution, the connecting shaft is driven to vibrate back and forth by the vibration component, which in turn causes the connecting rod fixed to the connecting shaft to vibrate, thereby ensuring the normal discharge operation of the device.

[0010] Furthermore, the vibration component includes a torsion spring fixed between the limiting plate and the limiting sleeve, a lever fixed on the connecting shaft, and multiple stops fixed on the inner wall of the sliding groove, wherein the multiple stops are distributed in a straight line at equal intervals.

[0011] By adopting the above technical solution, during the movement of the connecting rod driven by the chain, the connecting shaft connected to the connecting rod and the lever connected to the connecting shaft will move. The lever will contact the surface of the stop block, and the lever will be flipped under force, causing the connecting shaft connected to the lever and the connecting rod connected to the connecting shaft to rotate. This will cause the cleaning hook connected to the connecting rod to flip downwards at the end away from the connecting rod, and the torsion spring will gradually contract under force. After the lever moves and separates from the stop block, the torsion spring will gradually extend and return to its original position, thereby causing the limiting plate connected to the torsion spring, the connecting shaft connected to the limiting plate, and the connecting rod connected to the connecting shaft to rotate in the opposite direction. This will cause the cleaning hook to flip upwards at the end away from the connecting rod and return to its original position. Since there are multiple stops, the cleaning hook will perform multiple reciprocating flipping movements. With the help of the torsion spring, the purpose of shaking the cleaning hook can be achieved.

[0012] Furthermore, a bellows is fixed between the two mounting brackets, and multiple exhaust holes are provided through the bottom of the bellows. The air supply mechanism includes an air supply component, which includes a sealed box fixed to one of the mounting brackets, an air inlet pipe fixed and connected to the sealed box, an air outlet pipe fixed and connected to the sealed box, and a sealing piston slidably disposed inside the sealed box. The air inlet pipe is provided with a one-way valve that controls air to be discharged only from the outside into the sealed box, and the air outlet pipe is provided with a one-way valve that controls air in the sealed box to be discharged only from the air outlet pipe into the bellows. The other end of the air outlet pipe is connected to the inside of the bellows. The air supply mechanism also includes a displacement component for driving the sealing piston to reciprocate.

[0013] By adopting the above technical solution, the sealing piston is driven to move by the displacement component. During this process, outside air first enters the sealing box through the air inlet pipe, then is discharged from the sealing box to the air outlet pipe, then is discharged from the air outlet pipe into the air box, and finally is discharged through the exhaust hole provided on the air box. The blown gas acts on the connecting rod and cleaning hook located at the discharge position, thereby improving the filtration effect of the device.

[0014] Furthermore, the displacement assembly includes a drive shaft that passes through one of the mounting brackets, a turntable fixedly sleeved on the drive shaft, and a connecting rod rotatably mounted on the turntable. The drive shaft is fixed and coaxially arranged with one of the drive rods, and the other end of the connecting rod is movably connected to a sealing piston.

[0015] By adopting the above technical solution, when the transmission rod rotates, it drives the transmission shaft to rotate, which in turn drives the turntable fixed to the transmission shaft to rotate. Since one end of the connecting rod is rotatably mounted on the turntable, and the other end of the connecting rod is movably connected to the sealing piston, the purpose of reciprocating movement of the sealing piston is achieved.

[0016] Furthermore, the intake pipe is threaded with an internally threaded tube, and a filter screen is fixed inside the internally threaded tube.

[0017] By adopting the above technical solution and setting up the filter, the probability of dust entering the sealed box is reduced.

[0018] Furthermore, each of the connecting rods has a connecting groove, and the chain is fixed with a limiting strip that is inserted into the multiple connecting grooves.

[0019] By adopting the above technical solution, when the end of the cleaning hook away from the connecting rod flips upward and resets, the cleaning hook will contact the limiting strip, and the cleaning hook will be subjected to force and generate a certain vibration, which helps the impurities to fall off the cleaning hook.

[0020] Furthermore, the limiting strip is fixed with multiple mesh plates.

[0021] By adopting the above technical solution, the grid plate plays a blocking role in the process of cleaning hook transporting garbage.

[0022] In summary, the present invention has the following beneficial effects: In this application, by improving the existing technical structure, the garbage is facilitated to fall off the cleaning hook or connecting rod under the action of shaking and the gravity of the impurities themselves, thereby improving the filtration effect of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram illustrating the connection structure between the chain and the sprocket in an embodiment of this utility model;

[0025] Figure 3 This is a schematic diagram illustrating the connection structure between the chain and the connecting shaft in an embodiment of this utility model;

[0026] Figure 4 This is a schematic diagram illustrating the connection structure between the connecting rod and the cleaning hook in an embodiment of this utility model;

[0027] Figure 5 yes Figure 1 Enlarged view of point A in the middle;

[0028] Figure 6 yes Figure 3 Enlarged diagram of point B in the middle.

[0029] In the diagram: 1. Mounting bracket; 2. Drive rod; 3. Sprocket; 4. Chain; 5. Connecting rod; 6. Cleaning hook; 7. Vibration mechanism; 71. Connecting assembly; 711. Connecting shaft; 712. Limiting sleeve; 713. Limiting plate; 72. Vibration assembly; 721. Torsion spring; 722. Pulley; 723. Stop block; 8. Sliding groove; 9. Air box; 10. Air supply mechanism; 101. Air supply assembly; 1011. Sealing box; 1012. Air inlet pipe; 1013. Air outlet pipe; 1014. Sealing piston; 102. Displacement assembly; 1021. Drive shaft; 1022. Turntable; 1023. Connecting rod; 11. Internal threaded pipe; 12. Filter screen; 13. Connecting groove; 14. Limiting strip; 15. Mesh plate. Detailed Implementation

[0030] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0031] like Figure 1-6 As shown in the embodiment of this application, a bar screen for municipal rainwater treatment is disclosed, including a mounting frame 1, a shaking mechanism 7, and an air supply mechanism 10. Two mounting frames 1 are provided. Multiple transmission rods 2 are rotatably mounted between the two mounting frames 1, and one mounting frame 1 has a sliding groove 8. A bellows 9 is fixed between the two mounting frames 1, and multiple exhaust holes are provided through the bottom of the bellows 9. Each of the multiple transmission rods 2 is fixedly fitted with a sprocket 3, and a chain 4 is meshed on all the sprockets 3. A motor that drives the transmission rods 2 to rotate is provided on one of the mounting frames 1, and multiple connecting rods 5 are rotatably mounted on the chain 4, each connecting rod 5 having a cleaning hook 6 fixed on it. After the motor starts working, it drives the transmission rod 2 to rotate, which in turn drives the sprocket 3 fixed to the transmission rod 2, the chain 4 meshing with the sprocket 3, the connecting rod 5 connected to the chain 4, and the cleaning hook 6 connected to the connecting rod 5 to rotate, thereby realizing the cyclical movement of the cleaning hook 6. During this process, the cleaning hook 6 will carry the garbage to the discharge position. At this time, the shaking mechanism 7 will cause the connecting rod 5 and the cleaning hook 6 to shake the sticky impurities attached to the connecting rod 5 and the cleaning hook 6 to the storage box or storage cart set at the discharge position of the device. Under the action of shaking and the gravity of the impurities themselves, the garbage is easily detached from the cleaning hook 6 or the connecting rod 5, which improves the filtration effect of the device.

[0032] A shaking mechanism 7 is mounted on the mounting frame 1. The shaking mechanism 7 is used to shake the connecting rod 5 and the cleaning hook 6 during waste discharge. The shaking mechanism 7 includes a connecting assembly 71 and a shaking assembly 72. The connecting assembly 71 includes a connecting shaft 711, a limiting sleeve 712, and a limiting plate 713. The connecting shaft 711 passes through and is rotatably connected to the chain 4. The connecting shaft 711 is fixed to and coaxially arranged with the connecting rod 5. The connecting shaft 711 passes through and is rotatably connected to the limiting sleeve 712. The limiting sleeve 712 is fixed to the chain 4 and inserts into the sliding groove 8. The limiting plate 713 is fixedly sleeved on the connecting shaft 711 and located within the limiting sleeve 712. The shaking assembly 72 drives the connecting shaft 711 to reciprocate, thereby causing the connecting rod 5, which is fixed to the connecting shaft 711, to shake, ensuring normal discharge operation of the device.

[0033] The vibration assembly 72 is used to drive the connecting shaft 711 to reciprocate and vibrate. The vibration assembly 72 includes a torsion spring 721, a toggle block 722, and a stop block 723. The torsion spring 721 is fixed between the limiting plate 713 and the limiting sleeve 712. The toggle block 722 is fixed on the connecting shaft 711, and the stop block 723 is fixed on the inner wall of the sliding groove 8. Multiple stop blocks 723 are arranged in a straight line and are evenly distributed. As the chain 4 drives the connecting rod 5, it in turn drives the connecting shaft 711 connected to the connecting rod 5 and the lever 722 connected to the connecting shaft 711. The lever 722 will contact the surface of the stop block 723. The lever 722 will be flipped under force, causing the connecting shaft 711 and the connecting rod 5 connected to the connecting shaft 711 to rotate. This causes the cleaning hook 6 connected to the connecting rod 5 to flip downwards at the end away from the connecting rod 5. The torsion spring 721 will gradually contract under force. After the lever 722 moves and separates from the stop block 723, the torsion spring 721 will gradually extend and return to its original position. This will cause the limiting plate 713 connected to the torsion spring 721, the connecting shaft 711 connected to the limiting plate 713, and the connecting rod 5 connected to the connecting shaft 711 to rotate in the opposite direction. This will cause the cleaning hook 6 to flip upwards at the end away from the connecting rod 5 and return to its original position. Since there are multiple stops 723, the cleaning hook 6 will perform multiple reciprocating flipping movements. With the help of the torsion spring 721, the purpose of shaking the cleaning hook 6 can be achieved.

[0034] An air supply mechanism 10 is mounted on a mounting bracket 1. The air supply mechanism 10 includes an air supply component 101 and a displacement component 102. The air supply component 101 includes a sealed housing 1011, an inlet pipe 1012, an outlet pipe 1013, and a sealing piston 1014. The sealed housing 1011 is fixed to one of the mounting brackets 1. The inlet pipe 1012 is fixed to and connected to the sealed housing 1011. A one-way valve is installed on the inlet pipe 1012 to control airflow only from the outside into the sealed housing 1011. A one-way valve is installed on the outlet pipe 1013 to control airflow only from the sealed housing 1011 into the air box 9. The outlet pipe 1013 is fixed to and connected to the sealed housing 1011. The other end of the outlet pipe 1013 communicates with the interior of the air box 9. The sealing piston 1014 is slidably disposed within the sealed housing 1011. The displacement assembly 102 drives the sealing piston 1014 to move. During this process, outside air first enters the sealing box 1011 through the air inlet pipe 1012, then is discharged from the sealing box 1011 to the air outlet pipe 1013, then is discharged from the air outlet pipe 1013 into the air box 9, and finally is discharged through the exhaust hole provided on the air box 9. The blown air acts on the connecting rod 5 and the cleaning hook 6 located at the discharge position, thereby improving the filtration effect of the device.

[0035] The displacement assembly 102 drives the sealing piston 1014 to reciprocate. The displacement assembly 102 includes a drive shaft 1021, a turntable 1022, and a connecting rod 1023. The drive shaft 1021 is mounted through one of the mounting brackets 1. The drive shaft 1021 is fixed and coaxially arranged with one of the drive rods 2. The turntable 1022 is fixedly sleeved on the drive shaft 1021. The connecting rod 1023 is rotatably mounted on the turntable 1022, and its other end is movably connected to the sealing piston 1014. When the drive rod 2 rotates, it drives the drive shaft 1021 to rotate, which in turn drives the turntable 1022, which is fixed to the drive shaft 1021, to rotate. Since one end of the connecting rod 1023 is rotatably mounted on the turntable 1022, and the other end is movably connected to the sealing piston 1014, the reciprocating movement of the sealing piston 1014 is achieved.

[0036] An internally threaded pipe 11 is threaded onto the air intake pipe 1012, and a filter screen 12 is fixed inside the internally threaded pipe 11. The filter screen 12 reduces the probability of dust entering the sealed box 1011.

[0037] Each of the multiple connecting rods 5 has a connecting groove 13, and a limiting strip 14 is fixed on the chain 4, which is inserted into and cooperates with the multiple connecting grooves 13. When the end of the cleaning hook 6 away from the connecting rod 5 is flipped upward and reset, the cleaning hook 6 will contact the limiting strip 14, and the cleaning hook 6 will be subjected to force and generate a certain vibration, which helps the impurities to fall off the cleaning hook 6.

[0038] The limiting strip 14 is fixed with multiple mesh plates 15. The mesh plates 15 are designed to block the garbage during the transportation of waste by the cleaning hook 6.

[0039] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A bar screen for municipal stormwater treatment, comprising two mounting frames (1), characterized in that: Multiple transmission rods (2) are rotatably mounted between the two mounting frames (1). Each of the multiple transmission rods (2) is fixedly fitted with a sprocket (3). A chain (4) is meshed on the multiple sprockets (3). One of the mounting frames (1) is equipped with a motor that drives the transmission rods (2) to rotate. Multiple connecting rods (5) are rotatably mounted on the chain (4). Each connecting rod (5) is fixed with a cleaning hook (6). The mounting frame (1) is equipped with a shaking mechanism (7) for shaking the connecting rods (5) and the cleaning hooks (6) when garbage is discharged. The mounting frame (1) is equipped with an air supply mechanism (10).

2. A bar screen for municipal stormwater treatment according to claim 1, characterized in that: one of the bars... The mounting bracket (1) is provided with a sliding groove (8). The shaking mechanism (7) includes a connecting component (71). The connecting component (71) includes a connecting shaft (711) that passes through and is rotatably connected to the chain (4), a limiting sleeve (712) fixed on the chain (4), and a limiting plate (713) that is fixedly sleeved on the connecting shaft (711) and located in the limiting sleeve (712). The connecting shaft (711) is fixed and coaxially arranged with the connecting rod (5). The connecting shaft (711) passes through the limiting sleeve (712) and is rotatably connected. The limiting sleeve (712) passes into the sliding groove (8). The shaking mechanism (7) also includes a shaking component (72) for driving the connecting shaft (711) to reciprocate.

3. A bar screen for municipal stormwater treatment according to claim 2, characterized in that: The shaking component (72) includes a torsion spring (721) fixed between the limiting plate (713) and the limiting sleeve (712), a lever (722) fixed on the connecting shaft (711), and multiple stops (723) fixed on the inner wall of the sliding groove (8). The multiple stops (723) are distributed in a straight line at equal intervals.

4. A bar screen for municipal stormwater treatment according to claim 1, characterized in that: A bellows (9) is fixed between the two mounting brackets (1). The bottom of the bellows (9) is provided with multiple exhaust holes. The air supply mechanism (10) includes an air supply assembly (101). The air supply assembly (101) includes a sealing box (1011) fixed on one of the mounting brackets (1), an air inlet pipe (1012) fixed and connected to the sealing box (1011), an air outlet pipe (1013) fixed and connected to the sealing box (1011), and a sealing piston (1014) slidably disposed in the sealing box (1011). The other end of the air outlet pipe (1013) is connected to the inside of the bellows (9). The air supply mechanism (10) also includes a displacement assembly (102) for driving the sealing piston (1014) to reciprocate.

5. A bar screen for municipal stormwater treatment according to claim 4, characterized in that: The displacement assembly (102) includes a drive shaft (1021) that passes through one of the mounting brackets (1), a turntable (1022) that is fixedly sleeved on the drive shaft (1021), and a connecting rod (1023) that is rotatably mounted on the turntable (1022). The drive shaft (1021) is fixed and coaxially arranged with one of the drive rods (2), and the other end of the connecting rod (1023) is movably connected to the sealing piston (1014).

6. A bar screen for municipal stormwater treatment according to claim 5, characterized in that: The intake pipe (1012) is threaded with an internal threaded pipe (11), and a filter screen (12) is fixed inside the internal threaded pipe (11).

7. A bar screen for municipal stormwater treatment according to claim 1, characterized in that: Each of the multiple connecting rods (5) has a connecting groove (13), and the chain (4) has a limiting strip (14) that is inserted into and cooperates with the multiple connecting grooves (13).

8. A bar screen for municipal stormwater treatment according to claim 7, characterized in that: The limiting strip (14) is fixed with multiple grid plates (15).

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