Sewage filtering device with backwashing function

Abstract

The utility model provides a sewage filtering device with a backwashing function, which comprises a shell, a roller, a central cylinder, a mounting disc, a filter screen, a first water pipe, a second water pipe, a driving mechanism, a reciprocating mechanism and a transmission mechanism, the central cylinder divides the roller into a sewage cavity and a filtering cavity, the first water pipe is communicated with the sewage cavity, the second water pipe is communicated with the filtering cavity, and the driving mechanism is connected with the reciprocating mechanism. The first water pipe is communicated with a sewage pipe with a valve and a drainage pipe, the second water pipe is communicated with a water filtering pipe with a valve and a flushing pipe, the sewage pipe is provided with a sewage pump, the flushing pipe is provided with a flushing pump, the roller is movably provided with a plurality of brush rods with brushes, and the reciprocating mechanism is used for driving the brush rods to reciprocate. The driving mechanism drives the reciprocating mechanism to work through the transmission mechanism, through cooperation of the structures, backwashing work of the filter screen is achieved, the brush rod can be driven to brush the filter screen in multiple directions, the filter screen cleaning effect is improved, and therefore the sewage treatment effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sewage filtering device with a backwashing function. Background Art

[0002] With the rapid development of my country's economy, we will generate a large amount of sewage in our life and production. After the sewage is treated, it can be recycled to reduce the consumption of water resources for my country's production. Water treatment technology uses relevant technical means to purify sewage so that it can continue to be used, so sewage treatment is extremely important. At present, filters are often used to filter sewage in sewage treatment. However, it is difficult to effectively clean the filters during the sewage treatment process. After long-term use, a large amount of impurities are easily accumulated on the filters, affecting their filtering performance, resulting in poor sewage treatment effects and difficulty in meeting the use needs of sewage treatment. Utility Model Content

[0003] The purpose of the utility model is to solve the above problems by providing a sewage filtering device with a backwashing function in view of the shortcomings of the above technologies.

[0004] The utility model provides a sewage filtering device with a backwashing function, comprising a shell, a drum and a central cylinder, both ends of the drum are rotatably provided with mounting disks, the mounting disks are connected to the shell, both ends of the central cylinder are respectively connected to two mounting disks, the central cylinder divides the drum into a sewage cavity and a filter cavity, a filter screen for filtering water is arranged on the side wall of the central cylinder, a first water pipe and a second water pipe are respectively arranged on the two mounting disks, the first water pipe is communicated with the sewage cavity, the second water pipe is communicated with the filter cavity, and a valve is arranged on the first water pipe. A sewage pipe and a drain pipe, the second water pipe is connected with a filter pipe and a flushing pipe with a valve, the sewage pipe is provided with a sewage pump, the flushing pipe is provided with a flushing pump, the shell is provided with a driving mechanism for driving the drum to rotate, a plurality of brush rods with brushes are movably provided on the drum, the brushes on the brush rods abut against the filter screen and can move parallel to the axis of the central tube, the shell is provided with a reciprocating mechanism for driving the plurality of brush rods to reciprocate, and the shell is provided with a transmission mechanism for connecting the driving mechanism with the reciprocating mechanism.

[0005] Preferably, a drive shaft is rotatably provided on the shell, a gear is coaxially provided on the drive shaft, a gear ring is provided on the roller for driving the roller to rotate, the gear is meshed with the gear ring, the drive mechanism is transmission-connected to the drive shaft and is used to drive the drive shaft to rotate, and the transmission mechanism is used to transmission-connect the drive shaft to the reciprocating mechanism.

[0006] Preferably, the driving mechanism is a servo motor, which is drivingly connected to the driving shaft and used to drive the driving shaft to rotate.

[0007] Preferably, a pushing disk is movably arranged on the housing. The pushing disk cannot rotate relative to the housing. An annular frame is rotatably arranged on the pushing disk. The annular frame is connected to a plurality of the brush rods and used to drive the plurality of the brush rods to move. The reciprocating mechanism includes a rotating shaft, a swing rod and a connecting rod. The rotating shaft is rotatably installed on the housing. One end of the swing rod is connected to the rotating shaft. One end of the connecting rod is hinged to the swing rod. The other end of the connecting rod is hinged to the pushing disk. The transmission mechanism is used to drivingly connect the rotating shaft and the driving shaft.

[0008] Preferably, the transmission mechanism includes a transmission bevel gear, a transmission shaft and a transmission wheel. The transmission shaft is rotatably installed on the housing. The transmission bevel gear and the transmission wheel are respectively arranged at both ends of the transmission shaft. A runner is arranged on the rotating shaft. The runner is drivingly connected to the transmission wheel through a belt. A driving bevel gear meshing with the transmission bevel gear is arranged on the driving shaft.

[0009] Preferably, the number of the brush rods is eight. The eight brush rods are movably installed on the drum in a circumferential array.

[0010] Compared with the prior art, the present utility model has the following beneficial effects:

[0011] During normal sewage filtration work, the first water pipe is communicated with the sewage pipe and the second water pipe is communicated with the filter water pipe through a valve. The sewage pump is started. The sewage pump pumps sewage from the sewage pipe and the first water pipe into the sewage chamber, and filters it through the filter screen to the filter chamber inside the central cylinder, and then outputs it through the second water pipe and the filter water pipe to realize sewage filtration work. During this process, the driving mechanism can be used to drive the drum to drive a plurality of brush rods to rotate, and cooperate with the transmission mechanism and the reciprocating mechanism to drive the plurality of brush rods to move along the axis direction of the central cylinder during rotation, that is, the brush rods rotate and move at the same time, and brush the filter screen in multiple directions, reducing the occurrence of filter screen blockage during filtration work and improving the sewage treatment effect. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for description in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only the preferred embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0013] Figure 1 It is a schematic diagram of the external structure of a certain embodiment of the present utility model;

[0014] Figure 2 is a cross-sectional view of an embodiment of the present utility model;

[0015] Figure 3 is a schematic structural view of the drum in an embodiment of the present utility model;

[0016] Figure 4 is a schematic structural view of the reciprocating mechanism and the transmission mechanism in an embodiment of the present utility model.

[0017] In the figure, 1 - housing; 11 - mounting plate; 12 - drive shaft; 13 - gear; 14 - drive bevel gear; 15 - thrust plate; 16 - annular frame; 2 - drum; 21 - sewage chamber; 22 - filtration chamber; 23 - brush rod; 24 - toothed ring; 3 - central cylinder; 31 - filter screen; 4 - first water pipe; 41 - sewage pipe; 42 - drain pipe; 43 - sewage pump; 5 - second water pipe; 51 - filter water pipe; 52 - flushing pipe; 53 - flushing pump; 6 - drive mechanism; 7 - reciprocating mechanism; 71 - rotating shaft; 711 - runner; 72 - swing rod; 73 - connecting rod; 8 - transmission mechanism; 81 - transmission bevel gear; 82 - transmission shaft; 83 - transmission wheel; 9 - valve. Specific embodiments

[0018] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the protection scope of the present invention.

[0019] Embodiment 1:

[0020] Refer to Figures 1 to 4, the utility model provides a sewage filtration device with a backwashing function, which includes a housing 1, a drum 2 and a central cylinder 3. Installation disks 11 are rotatably arranged at both ends of the drum 2, and the installation disks 11 are connected to the housing 1. Both ends of the central cylinder 3 are respectively connected to the two installation disks 11. The central cylinder 3 divides the drum 2 into a sewage chamber 21 and a filtration chamber 22. A filter screen 31 for filtering water body is arranged on the side wall of the central cylinder 3. A first water pipe 4 and a second water pipe 5 are respectively arranged on the two installation disks 11. The first water pipe 4 is communicated with the sewage chamber 21, and the second water pipe 5 is communicated with the filtration chamber 22. A sewage pipe 41 and a drain pipe 42 with valves 9 are communicated on the first water pipe 4. A filter water pipe 51 and a flushing pipe 52 with valves 9 are communicated on the second water pipe 5. A sewage pump 43 is arranged on the sewage pipe 41, and a flushing pump 53 is arranged on the flushing pipe 52. A driving mechanism 6 for driving the drum 2 to rotate is arranged on the housing 1. A plurality of brush rods 23 with brushes are movably arranged on the drum 2. The brushes on the brush rods 23 abut against the filter screen 31 and can move parallel to the axis of the central cylinder 3. A reciprocating mechanism 7 for driving the plurality of brush rods 23 to reciprocate is arranged on the housing 1. A transmission mechanism 8 for transmitting the driving mechanism 6 to the reciprocating mechanism 7 is arranged on the housing 1.

[0021] Working principle: When the sewage filtration work is carried out normally, the first water pipe 4 is communicated with the sewage pipe 41 and the second water pipe 5 is communicated with the filter water pipe 51 through the valve 9. The sewage pump 43 is started. The sewage pump 43 pumps the sewage through the sewage pipe 41 and the first water pipe 4 into the sewage chamber 21, and filters it through the filter screen 31 to the filtration chamber 22 inside the central cylinder 3, and then outputs it through the second water pipe 5 and the filter water pipe 51, realizing the sewage filtration work. During this process, the driving mechanism 6 can be used to drive the drum 2 to drive the plurality of brush rods 23 to rotate, and cooperate with the transmission mechanism 8 and the reciprocating mechanism 7 to drive the plurality of brush rods 23 to move along the axis direction of the central cylinder 3 during the rotation, that is, the brush rods 23 rotate and move at the same time, and brush the filter screen 31 in multiple directions, reducing the occurrence of blockage of the filter screen 31 during the filtration work and improving the sewage treatment effect.

[0022] When the filter screen 31 needs to be flushed, the first water pipe 4 is communicated with the drain pipe 42 and the second water pipe 5 is communicated with the flushing pipe 52 through the valve 9. The flushing pump 53 is started. The flushing pump 53 pumps the filtered water through the flushing pipe 52 and the second water pipe 5 to the filtration chamber 22 inside the central cylinder 3, and then outputs it through the filter screen 31, the sewage chamber 21, the second water pipe 5 and the drain pipe 42. This process realizes the backwashing work of the filter screen 31, and the driving mechanism 6 is used to drive the drum 2 to drive the plurality of brush rods 23 to rotate, and cooperate with the transmission mechanism 8 and the reciprocating mechanism 7 to drive the plurality of brush rods 23 to move along the axis direction of the central cylinder 3 during the rotation, and brush the filter screen 31 in multiple directions, further improving the cleaning effect of the filter screen 31, thereby improving the sewage treatment effect.

[0023] Specifically, a drive shaft 12 is rotatably arranged on the housing 1, a gear 13 is coaxially arranged on the drive shaft 12, a toothed ring 24 for driving the drum 2 to rotate is arranged on the drum 2, the gear 13 meshes with the toothed ring 24, the drive mechanism 6 is in transmission connection with the drive shaft 12 and is used to drive the drive shaft 12 to rotate, and the transmission mechanism 8 is used to transmit the drive shaft 12 and the reciprocating mechanism 7 in transmission connection.

[0024] Specifically, the drive mechanism 6 is a servo motor, and the servo motor is in transmission connection with the drive shaft 12 and is used to drive the drive shaft 12 to rotate.

[0025] The servo motor drives the drive shaft 12 to drive the gear 13 to rotate. During the rotation of the gear 13, the drum 2 is driven by the toothed ring 24 to drive a plurality of brush rods 23 to rotate, realizing the rotational scrubbing work of the brush rods 23.

[0026] Embodiment 2:

[0027] Referring to Figures 1 to 4 , in combination with the technical solution of Embodiment 1, in this embodiment, a thrust disk 15 is movably arranged on the housing 1. The thrust disk 15 cannot rotate relative to the housing 1. A ring frame 16 is rotatably arranged on the thrust disk 15. The ring frame 16 is connected to a plurality of brush rods 23 and is used to drive a plurality of brush rods 23 to move. The reciprocating mechanism 7 includes a rotating shaft 71, a swing rod 72 and a connecting rod 73. The rotating shaft 71 is rotatably installed on the housing 1. One end of the swing rod 72 is connected to the rotating shaft 71. One end of the connecting rod 73 is hinged to the swing rod 72. The other end of the connecting rod 73 is hinged to the thrust disk 15. The transmission mechanism 8 is used to transmit the rotating shaft 71 and the drive shaft 12 in transmission connection.

[0028] Specifically, the transmission mechanism 8 includes a transmission bevel gear 8113, a transmission shaft 82 and a transmission wheel 83. The transmission shaft 82 is rotatably installed on the housing 1. The transmission bevel gear 8113 and the transmission wheel 83 are respectively arranged at both ends of the transmission shaft 82. A runner 711 is arranged on the rotating shaft 71. The runner 711 is in belt transmission connection with the transmission wheel 83. A drive bevel gear 1413 meshing with the transmission bevel gear 8113 is arranged on the drive shaft 12.

[0029] Specifically, the number of the brush rods 23 is eight, and the eight brush rods 23 are movably installed on the drum 2 in a circumferential array.

[0030] Working principle: The servo motor drives the drive shaft 12 to rotate. During the rotation of the rotating shaft 71, the roller 2 is driven to rotate through the gear 13 and the gear ring 24. The roller 2 drives a plurality of brush rods 23 to rotate for scrubbing work. The drive shaft 12 drives the rotating shaft 71 to rotate through the driving bevel gear 1413, the transmission bevel gear 8113, the transmission shaft 82, the transmission wheel 83 and the runner 711. During the rotation of the rotating shaft 71, the push plate 15 is driven to reciprocate through the swing rod 72 and the connecting rod 73. The push plate 15 drives a plurality of brush rods 23 to reciprocate through the annular frame 16. Among them, the annular frame 16 can rotate relative to the push plate 15, so that a plurality of brush rods 23 can reciprocate while rotating, realizing the comprehensive scrubbing work of the filter screen 31, which is beneficial to improving the cleanliness of the filter screen 31.

[0031] The above is only the preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention by using the above technical content within the scope of the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes. Therefore, all changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the present invention without departing from the technical solution of the present invention belong to the protection scope of this technical solution.

Claims

1. A sewage filter device with backwashing function, characterized in that: The utility model comprises a shell, a drum and a central cylinder, wherein mounting disks are rotatably provided at both ends of the drum, the mounting disks are connected to the shell, the two ends of the central cylinder are respectively connected to the two mounting disks, the central cylinder divides the drum into a sewage chamber and a filter chamber, a filter screen for filtering water is provided on the side wall of the central cylinder, a first water pipe and a second water pipe are respectively provided on the two mounting disks, the first water pipe is communicated with the sewage chamber, the second water pipe is communicated with the filter chamber, a sewage pipe and a drain pipe with a valve are communicated on the first water pipe, a filter pipe and a flushing pipe with a valve are communicated on the second water pipe, a sewage pump is provided on the sewage pipe, and a flushing pump is provided on the flushing pipe, a driving mechanism for driving the drum to rotate is provided on the shell, a plurality of brush rods with brushes are movably provided on the drum, the brushes on the brush rods abut on the filter screen and can move parallel to the axis of the central cylinder, a reciprocating mechanism for driving the plurality of brush rods to reciprocate is provided on the shell, and a transmission mechanism for transmission connection between the driving mechanism and the reciprocating mechanism is provided on the shell.

2. A sewage filtering device with backwashing function according to claim 1, characterized in that: A drive shaft is rotatably arranged on the shell, a gear is coaxially arranged on the drive shaft, a gear ring is arranged on the roller for driving the roller to rotate, the gear is meshed with the gear ring, the drive mechanism is transmission-connected to the drive shaft and is used to drive the drive shaft to rotate, and the transmission mechanism is used to transmission-connect the drive shaft to the reciprocating mechanism.

3. A sewage filtering device with backwashing function according to claim 2, characterized in that: The driving mechanism is a servo motor, which is drivingly connected to the driving shaft and is used to drive the driving shaft to rotate.

4. A sewage filtering device with backwashing function according to claim 2, characterized in that: A push plate is movably provided on the shell, and the push plate cannot rotate relative to the shell. An annular frame is rotatably provided on the push plate, and the annular frame is connected to a plurality of the brush rods and is used to drive the plurality of the brush rods to move. The reciprocating mechanism includes a rotating shaft, a rocker rod and a connecting rod. The rotating shaft is rotatably installed on the shell, one end of the rocker rod is connected to the rotating shaft, one end of the connecting rod is hinged to the rocker rod, and the other end of the connecting rod is hinged to the push plate. The transmission mechanism is used to transmission connect the rotating shaft with the drive shaft.

5. A sewage filtering device with backwashing function according to claim 4, characterized in that: The transmission mechanism includes a transmission bevel gear, a transmission shaft and a transmission wheel. The transmission shaft is rotatably mounted on the housing. The transmission bevel gear and the transmission wheel are respectively arranged at two ends of the transmission shaft. A rotating wheel is arranged on the rotating shaft. The rotating wheel is connected to the transmission wheel through a belt drive. A driving bevel gear meshing with the transmission bevel gear is arranged on the driving shaft.

6. The sewage filtering device with backwashing function according to claim 1 is characterized in that: The number of the brush rods is eight, and the eight brush rods are movably mounted on the roller in a circular array.

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