Backwash water filtering device

Abstract

The utility model provides a backwashing water filtering device, which relates to the technical field of water filtering devices and comprises a connecting pipe, the connecting pipe is communicated with and mounted on an external pipeline, a filter plate capable of sliding along the connecting pipe is arranged in the connecting pipe, a connecting mechanism for mounting the filter plate is arranged in the connecting pipe, and a first plate block is fixedly mounted in the connecting pipe. A container is fixedly mounted on the first plate, a vertical pipe is communicated with the container, and the upper end of the vertical pipe extends out of the connecting pipe; according to the backwashing water filtering device, washing water is guided in through the vertical pipe, discharged through the multiple spray heads and sprayed on the filter plate, so that blockages on the filter plate are washed away, then the motor drives the connecting strip to rotate, the connecting strip and the inner pipe are connected and rotate synchronously, the annular container is driven to rotate around the inner pipe, the multiple spray heads rotate synchronously, and the backwashing effect is achieved. And the washing range of the plurality of nozzles can cover different positions of the filter plate.

Description

Technical Field

[0001] The utility model relates to the field of water filtering devices, in particular to a backwashing water filtering device. Background Art

[0002] The backwash water filter device, also known as the backwash filter, is a precision device that can automatically perform backwashing. Its main working principle is based on reverse flow. When sewage or liquid passes through the filter, solid particles are filtered out and clean liquid flows out. At this time, the filter material or filter medium in the filter will begin to accumulate particulate matter. When the set time interval or the pressure difference reaches a certain value, the filter will start the automatic backwashing program, and the clean liquid (usually the liquid itself or other cleaning agents) will flow back through the filter to clean and flush away the blocked solid particles. After cleaning, the filter returns to the filtration stage and is ready to filter again.

[0003] For example, the backwash water filter device with publication number CN107224768A specifically discloses a cylindrical shell, a filter screen, and a backwash device. The cylindrical shell is divided by the filter screen to form a water inlet chamber, an intermediate filter chamber, and a water outlet chamber. The backwash device includes a columnar tube that passes through each layer of the filter screen. Two water pipes are arranged side by side and spaced apart in the tube, which are a water inlet pipe and a sewage pipe. The open end of the water inlet pipe serves as a water inlet. The position of the flushing pipe of the backwash water filter device in the prior art is fixed, and only the fixed position of the filter plate can be flushed, resulting in incomplete flushing of the filter plate. If the impurities and particulate matter on the filter plate cannot be completely flushed, then in the subsequent filtering process, these residues will continue to block the filter plate, resulting in a gradual decrease in the filtration efficiency. Over a long period of time, the filtering effect will be greatly reduced, and may even fail to meet the production or processing requirements. For this reason, we propose a backwash water filter device. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a backwash water filter device, which solves the problems raised by the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model is implemented by the following technical solutions: a backwash water filter device, comprising a connecting pipe, the connecting pipe is connected to and installed on an external pipeline, a filter plate that can slide along the connecting pipe is arranged in the connecting pipe, a connecting mechanism for installing the filter plate is arranged in the connecting pipe, and the connecting mechanism is connected to the filter plate;

[0006] A first plate is fixedly installed in the connecting pipe, a container is fixedly installed on the first plate, a vertical pipe is connected to the container, and the upper end of the vertical pipe extends to the outside of the connecting pipe, a second plate is fixedly installed in the connecting pipe, an inner pipe is rotatably installed on the second plate, one end of the inner pipe is rotatably installed on the container and the two are connected, the other end of the inner pipe is connected to and fixedly installed with an annular container, one side of the annular container is connected to a plurality of equidistantly distributed nozzles, the connecting pipe is connected to a drain pipe, a driving mechanism for driving the annular container to rotate is installed on the first plate, and the driving mechanism is connected to the inner pipe.

[0007] As a further technical solution of the utility model, the driving mechanism includes a connecting bar, the connecting bar is fixedly connected to the inner tube, a motor is fixedly mounted on the first plate, and an output shaft of the motor is fixedly connected to the connecting bar.

[0008] As a further technical solution of the utility model, the connecting mechanism includes two inner blocks arranged at intervals, the inner blocks are fixedly connected in the connecting pipe, a guide rod passes through the inner block, the end of the guide rod is fixedly connected to the filter plate, a spring is sleeved on the guide rod, the two ends of the spring are respectively fixedly connected to the inner block and the filter plate, and the other end of the guide rod is fixedly connected to a baffle.

[0009] As a further technical solution of the utility model, a stopper is fixedly installed in the connecting pipe, and the stopper is located on one side of the filter plate.

[0010] As a further technical solution of the utility model, an inner rod is fixedly installed in the inner tube, a movable bar is provided in the annular container, the inner rod passes through the movable bar, a disc is fixedly connected to the end of the inner rod, an elastic member is sleeved on the inner rod, the two ends of the elastic member are respectively fixedly connected to the disc and the movable bar, a plurality of sealing plugs are fixedly connected to the movable bar, and the plurality of sealing plugs can block the nozzles except the nozzle located in the center.

[0011] As a further technical solution of the utility model, the movable bar is a magnet, and two electromagnets arranged at intervals are fixedly installed in the annular container.

[0012] As a further technical solution of the utility model, the connecting pipe is a water pipe made of transparent material and an anti-corrosion coating is sprayed on the surface.

[0013] The utility model provides a backwash water filter device, which has the following beneficial effects compared with the prior art:

[0014] 1. A backwash water filtration device designed in this invention is characterized in that the flushing water is introduced by a vertical pipe, discharged by a plurality of nozzles and sprayed on the filter plate, thereby flushing away the blockage on the filter plate, and then the connecting strip is driven to rotate by a motor, and the connecting strip and the inner tube are connected and rotate synchronously, thereby driving the annular container to rotate around the inner tube, and the plurality of nozzles rotate synchronously, and the flushing range of the plurality of nozzles can cover different positions of the filter plate.

[0015] 2. In a backwash water filtration device designed in this invention, the flushing water is discharged from only one nozzle. When the water pressure increases, the flushing water is intermittently introduced into the vertical pipe, so that the nozzle intermittently impacts the filter plate. The filter plate moves along the guide rod under the impact force, and the spring is compressed. When the impact stops, the spring elastic force drives the filter plate to move in the opposite direction and hit the block, which can cause the filter plate to vibrate. The blockage can be accelerated to detach from the filter plate under the action of the vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a backwash water filtration device;

[0017] Figure 2 is a cross-sectional view of a backwash water filtration device;

[0018] Figure 3 It is a partial enlarged schematic diagram of the structure of the filter plate of a backwash water filter device;

[0019] Figure 4 It is a partial enlarged schematic diagram of the structure of an annular container of a backwash water filter device;

[0020] Figure 5 The present invention is an enlarged cross-sectional view of a part of the structure of an annular container of a backwash water filter device.

[0021] In the figure: 1. connecting pipe; 2. filter plate; 3. first plate; 4. container; 5. vertical pipe; 6. second plate; 7. inner pipe; 8. annular container; 9. nozzle; 10. drain pipe; 11. connecting strip; 12. motor; 13. inner block; 14. guide rod; 15. spring; 16. baffle; 17. inner rod; 18. movable strip; 19. disc; 20. elastic member; 21. sealing plug; 22. electromagnet; 23. baffle. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 The utility model provides a backwash water filtering device, including a connecting pipe 1, which is connected to and installed on an external pipeline, a filter plate 2 that can slide along the connecting pipe 1 is arranged in the connecting pipe 1, a connecting mechanism for installing the filter plate 2 is arranged in the connecting pipe 1, and the connecting mechanism is connected to the filter plate 2; a first plate 3 is fixedly installed in the connecting pipe 1, a container 4 is fixedly installed on the first plate 3, a vertical pipe 5 is connected to the container 4, and the upper end of the vertical pipe 5 extends to the outside of the connecting pipe 1, a second plate 6 is fixedly installed in the connecting pipe 1, an inner pipe 7 is rotatably installed on the second plate 6, one end of the inner pipe 7 is rotatably installed on the container 4 and the two are connected, the other end of the inner pipe 7 is connected and fixedly installed with an annular container 8, one side of the annular container 8 is connected with a plurality of equidistantly distributed nozzles 9, a drain pipe 10 is connected to the connecting pipe 1, a driving mechanism for driving the annular container 8 to rotate is installed on the first plate 3, and the driving mechanism is connected to the inner pipe 7. The driving mechanism comprises a connecting bar 11 , which is fixedly connected to the inner tube 7 . A motor 12 is fixedly mounted on the first plate 3 , and an output shaft of the motor 12 is fixedly connected to the connecting bar 11 .

[0024] The connecting pipe 1 is connected and installed on the external pipe. The external pipe guides the water to be filtered into the connecting pipe 1, and filters it through the filter plate 2. The filtered water is discharged from the drain pipe 10. During flushing, the external pipe stops guiding the water into the connecting pipe 1, and guides the flushing water through the vertical pipe 5. The flushing water enters the container 4 through the vertical pipe 5, and then enters the inner pipe 7 and the annular container 8 in sequence, and is finally discharged by multiple nozzles 9 and sprayed on the filter plate 2, thereby flushing away the blockage on the filter plate 2. The connecting strip 11 is then driven to rotate by the motor 12. The connecting strip 11 and the inner pipe 7 are connected and rotate synchronously, thereby driving the annular container 8 to rotate around the inner pipe 7. The multiple nozzles 9 rotate synchronously. The flushing range of the multiple nozzles 9 can cover different positions of the filter plate 2, and the filter plate 2 is completely flushed, thereby improving the flushing quality.

[0025] like Figure 3 and Figure 5As shown, the connection mechanism includes two inner blocks 13 arranged at intervals, the inner block 13 is fixedly connected in the connection pipe 1, a guide rod 14 is passed through the inner block 13, the end of the guide rod 14 is fixedly connected to the filter plate 2, a spring 15 is sleeved on the guide rod 14, the two ends of the spring 15 are respectively fixedly connected to the inner block 13 and the filter plate 2, and the other end of the guide rod 14 is fixedly connected to a stopper 16. A stopper 23 is fixedly installed in the connection pipe 1, and the stopper 23 is located on one side of the filter plate 2. An inner rod 17 is fixedly installed in the inner tube 7, a movable bar 18 is provided in the annular container 8, the inner rod 17 passes through the movable bar 18, a disc 19 is fixedly connected to the end of the inner rod 17, an elastic member 20 is sleeved on the inner rod 17, the two ends of the elastic member 20 are respectively fixedly connected to the disc 19 and the movable bar 18, and a plurality of sealing plugs 21 are fixedly connected to the movable bar 18, and the plurality of sealing plugs 21 can block the nozzles 9 except the nozzle 9 located in the center. The movable bar 18 is a magnet, and two electromagnets 22 arranged at intervals are fixedly installed in the annular container 8. The connecting pipe 1 is a water pipe made of transparent material and the surface is sprayed with an anti-corrosion coating.

[0026] During the flushing process, the electromagnet 22 is energized and a repulsive force is applied to the movable bar 18. Multiple sealing plugs 21 can block the nozzles 9 except the nozzle 9 located in the center. The flushing water is introduced through the vertical pipe 5 and discharged from only one nozzle 9. The water pressure increases, and the flushing water is intermittently introduced into the vertical pipe 5, so that the nozzle 9 intermittently impacts the filter plate 2. The filter plate 2 moves along the guide rod 14 under the impact force, and the spring 15 is compressed. When the impact stops, the elastic force of the spring 15 drives the filter plate 2 to move in the opposite direction and hit the block 23, which can cause the filter plate 2 to vibrate. The blockage can be accelerated to break away from the filter plate 2 under the action of the vibration.

[0027] The working principle of the utility model is as follows: the connecting pipe 1 is connected and installed on the external pipe, the external pipe guides the water to be filtered into the connecting pipe 1, and filters it through the filter plate 2, and the filtered water is discharged from the drain pipe 10. During flushing, the external pipe stops guiding the water into the connecting pipe 1, and the flushing water is guided into the vertical pipe 5, and the flushing water enters the container 4 from the vertical pipe 5, and then enters the inner pipe 7 and the annular container 8 in sequence, and is finally discharged by a plurality of nozzles 9 and sprayed on the filter plate 2, thereby flushing away the blockage on the filter plate 2, and then the connecting strip 11 is driven to rotate by the motor 12, the connecting strip 11 and the inner pipe 7 are connected and rotate synchronously, thereby driving the annular container 8 to rotate around the inner pipe 7, and the plurality of nozzles 9 rotate synchronously, and the flushing range of the plurality of nozzles 9 can cover different positions of the filter plate 2. During the flushing process, the electromagnet 22 is energized and a repulsive force is applied to the movable bar 18. Multiple sealing plugs 21 can block the nozzles 9 except the nozzle 9 located in the center. The flushing water is introduced through the vertical pipe 5 and discharged from only one nozzle 9. The water pressure increases, and the flushing water is intermittently introduced into the vertical pipe 5, so that the nozzle 9 intermittently impacts the filter plate 2. The filter plate 2 moves along the guide rod 14 under the impact force, and the spring 15 is compressed. When the impact stops, the elastic force of the spring 15 drives the filter plate 2 to move in the opposite direction and hit the block 23, which can cause the filter plate 2 to vibrate. The blockage can be accelerated to break away from the filter plate 2 under the action of the vibration.

[0028] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A backwash water filter device, characterized in that: The invention comprises a connecting pipe (1), the connecting pipe (1) being connected to and mounted on an external pipe, a filter plate (2) being arranged inside the connecting pipe (1) and being capable of sliding along the connecting pipe (1), a connecting mechanism for mounting the filter plate (2) being arranged inside the connecting pipe (1), and the connecting mechanism being connected to the filter plate (2); A first plate (3) is fixedly mounted in the connecting pipe (1), a container (4) is fixedly mounted on the first plate (3), a vertical pipe (5) is connected to the container (4), and the upper end of the vertical pipe (5) extends outside the connecting pipe (1), a second plate (6) is fixedly mounted in the connecting pipe (1), an inner pipe (7) is rotatably mounted on the second plate (6), one end of the inner pipe (7) is rotatably mounted on the container (4) and the two are connected, the other end of the inner pipe (7) is connected to and fixedly mounted on an annular container (8), one side of the annular container (8) is connected to a plurality of equally spaced nozzles (9), the connecting pipe (1) is connected to a drain pipe (10), a driving mechanism for driving the annular container (8) to rotate is mounted on the first plate (3), and the driving mechanism is connected to the inner pipe (7).

2. A backwash water filter device according to claim 1, characterized in that: The driving mechanism comprises a connecting bar (11), wherein the connecting bar (11) is fixedly connected to the inner tube (7); a motor (12) is fixedly mounted on the first plate (3), and an output shaft of the motor (12) is fixedly connected to the connecting bar (11).

3. A backwash water filtration device according to claim 2, characterized in that: The connecting mechanism comprises two inner blocks (13) arranged at intervals, the inner blocks (13) being fixedly connected in the connecting pipe (1), a guide rod (14) passing through the inner block (13), the end of the guide rod (14) being fixedly connected to the filter plate (2), a spring (15) being sleeved on the guide rod (14), the two ends of the spring (15) being fixedly connected to the inner block (13) and the filter plate (2) respectively, and the other end of the guide rod (14) being fixedly connected to a baffle (16).

4. A backwash water filter device according to claim 3, characterized in that: A stopper (23) is fixedly installed in the connecting pipe (1), and the stopper (23) is located on one side of the filter plate (2).

5. A backwash water filter device according to claim 4, characterized in that: An inner rod (17) is fixedly installed in the inner tube (7), a movable bar (18) is provided in the annular container (8), the inner rod (17) passes through the movable bar (18), a disc (19) is fixedly connected to the end of the inner rod (17), an elastic member (20) is sleeved on the inner rod (17), two ends of the elastic member (20) are respectively fixedly connected to the disc (19) and the movable bar (18), and a plurality of sealing plugs (21) are fixedly connected to the movable bar (18), and the plurality of sealing plugs (21) can block the nozzles (9) except the nozzle (9) located at the center.

6. A backwash water filter device according to claim 5, characterized in that: The movable bar (18) is a magnet, and two electromagnets (22) arranged at intervals are fixedly installed in the annular container (8).

7. A backwash water filter device according to claim 1, characterized in that: The connecting pipe (1) is a water pipe made of transparent material and has an anti-corrosion coating sprayed on its surface.

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