Self-cleaning sewage filtering device

Abstract

The invention discloses a self-cleaning sewage filter device, which belongs to the technical field of sewage filtration, and comprises: an outer shell, one side of which is provided with a water inlet pipe, and the lower end of which is respectively provided with a water outlet and a waste outlet; a filter assembly, which is installed inside the outer shell; a plurality of guide plates, which are used to guide the sewage entering the inner part of the outer shell to the filter assembly; wherein the plurality of guide plates perform diversion work alternately, and when a set time is reached, the current guide plate will be separated from the filter assembly, and the solid impurities thereon will be dumped into the waste outlet, and the next guide plate will move to the diversion position to perform diversion work. The invention adopts a plurality of guide plates to work alternately, and when the guide plates are alternately, the bristles on the guide plates will clean the filter assembly, and at the same time, the guide plates can also drive the inner plate to vibrate for secondary cleaning, thereby avoiding clogging of the filter assembly, resulting in shutdown for cleaning, and reducing the filtering efficiency of sewage.

Description

Technical Field

[0001] The invention relates to the technical field of sewage filtration, and in particular to a self-cleaning sewage filtration device. Background Art

[0002] Filtration is one of the most important steps in the sewage treatment process. The filtering device can filter out solid impurities in sewage while the sewage flows through, so as to prevent the solid impurities from affecting the subsequent sewage purification work. At present, most sewage filter devices only have a single-layer filter hole structure. When high-turbidity sewage flows through, sludge is easy to form a compacted layer on the inner wall of the filter hole, causing the filtering device to be blocked by sludge. After the filtering device is blocked, it is generally necessary to stop the machine for cleaning, which leads to a decrease in sewage filtration efficiency. In order to solve the above problems, the present invention provides a self-cleaning sewage filtering device. Summary of the invention

[0003] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a self-cleaning sewage filter device, which adopts multiple guide plates to work alternately, and when the guide plates are alternated, the bristles on the guide plates will clean the filter components. At the same time, the guide plates can also drive the inner plates to vibrate for secondary cleaning, thereby avoiding the filter components from being blocked, resulting in shutdown for cleaning and reducing the sewage filtration efficiency.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solution: The present invention provides a self-cleaning sewage filtering device, comprising: A shell, one side of the shell is provided with a water inlet pipe, and the lower end of the shell is provided with a water outlet and a waste outlet; A filter assembly is installed inside the housing and is located in the upper space between the water outlet and the waste outlet; A plurality of guide plates, the plurality of guide plates are used to guide the sewage entering the housing to the filter assembly and can intercept solid impurities in the sewage; Among them, multiple guide plates perform diversion work alternately. When the set time is reached, the current guide plate will be separated from the filter assembly, and the solid impurities on it will be dumped into the waste outlet. The next guide plate will move to the diversion position to perform diversion work, and the next guide plate will clean the filter assembly during the movement.

[0005] Preferably, the filter assembly comprises: An outer plate, the outer plate being fixedly connected to the interior of the outer shell; An inner plate, the inner plate being located on a side of the outer plate close to the guide plate; An elastic connection part, which is located at the lower ends of the outer plate and the inner plate and is used to connect the outer plate and the inner plate; Wherein, filtering holes are provided on both the outer plate and the inner plate.

[0006] Preferably, the projections of the filter holes on the outer plate overlap partially with the filter holes on the inner plate.

[0007] Preferably, a plurality of protrusions which are interference fit with the guide plate are fixedly connected to a side surface of the inner plate away from the outer plate, and the plurality of protrusions are distributed on the inner plate along the movement track of the guide plate.

[0008] Preferably, the elastic connection portion is in a "U" shape, with both ends of its open end fixedly connected to the outer plate and the inner plate respectively, and the closed end folded toward the guide plate and protruding from the inner plate.

[0009] Preferably, a plurality of convex strips are fixedly connected to one side surface of the outer plate close to the inner plate, and the convex strips are interference fit with the grooves provided on the inner plate.

[0010] Preferably, the plurality of guide plates are fixedly mounted on a rotating shaft provided inside the shell, the rotating shaft is driven by a motor mounted on the shell, the outer plate and the inner plate are both arc-shaped, and the centers of the outer plate and the inner plate coincide with the axis of the rotating shaft.

[0011] Preferably, bristles for cleaning the filter assembly are fixedly mounted on the guide plate.

[0012] Preferably, when the guide plate intercepts solid impurities in sewage, a plurality of interception rods are fixedly connected to one side surface facing upward.

[0013] Preferably, the position where the water inlet pipe communicates with the shell is located at one end of the guide plate close to the rotating shaft.

[0014] The beneficial effects of the present invention are: The present invention drives multiple guide plates to work alternately through a rotating shaft. After working for a specified time, the current guide plate disengages from the matching position with the filter component to discharge the impurities retained by it and the impurities intercepted by the filter component to the waste outlet. At the same time, the next guide plate rotates to the working position and cleans the filter component with bristles during rotation, which can not only achieve continuity of filtration but also avoid the problem of clogging of the filter component.

[0015] The filter assembly of the present invention adopts a double-layer structure of an outer plate and an inner plate, and the projection parts of the filter holes on the outer plate and the inner plate are staggered and overlapped, so that turbulence can be formed inside the filter holes when sewage flows through, reducing the accumulation of sludge inside the filter holes and reducing the possibility of clogging. At the same time, the setting of the elastic connection part can make the inner plate vibrate continuously when the guide plate moves, so as to better shake off impurities attached to the filter holes and significantly improve the anti-clogging ability of the filter assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic structural diagram of a self-cleaning sewage filter device provided in an embodiment of the present invention (first perspective).

[0018] Figure 2 A schematic structural diagram of a self-cleaning sewage filtering device provided in an embodiment of the present invention (second perspective).

[0019] Figure 3 It is a cross-sectional view of the present invention.

[0020] Figure 4 It is a partial structural schematic diagram of the outer plate and the inner plate of the present invention.

[0021] Figure 5 It is an exploded view of the outer plate and the inner plate of the present invention.

[0022] Figure 6 It is a connection schematic diagram of the outer plate, the inner plate and the elastic connection part of the present invention.

[0023] Figure 7 It is a schematic diagram of the connection between the guide plate and the rotating shaft of the present invention.

[0024] Figure 8 It is a cross-sectional view of the outer plate, inner plate and elastic connecting part of the present invention.

[0025] Description of reference numerals: 1. outer shell, 2. guide plate, 3. outer plate, 4. inner plate, 5. elastic connecting part, 6. convex block, 7. convex strip, 8. slot, 9. rotating shaft, 10. intercepting rod, 11. bristles, 12. motor. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The present invention provides a self-cleaning sewage filtering device, such as Figures 1 to 8 shown.

[0028] Embodiment 1: A self-cleaning sewage filtering device comprises a shell 1, one side of the shell 1 is provided with a water inlet pipe for receiving sewage, the lower end of the shell 1 is respectively provided with a water outlet and a waste outlet, the filtered sewage is discharged through the water outlet, and the filtered solid impurities are discharged through the waste outlet, a filtering component is installed inside the shell 1, the filtering component is located in the upper space between the water outlet and the waste outlet, a plurality of guide plates 2 are installed inside the shell 1 and above the waste outlet, the plurality of guide plates 2 are fixedly installed on a rotating shaft 9, the rotating shaft 9 is rotatably installed inside the shell 1 and driven by a motor 12, the motor 12 is installed on the outer wall of the shell 1, and is connected to an external power source through a cable.

[0029] The sewage enters the interior of the shell 1 through the water inlet pipe and is guided by the corresponding guide plate 2 to the filter assembly for filtration. The sewage will pass through the filter assembly and be discharged through the water outlet. The solid impurities will be intercepted by the guide plate 2 and the filter assembly. After the set time is reached, the motor 12 drives the rotating shaft 9 to rotate a specified angle. At this time, the guide plate 2 that currently cooperates with the filter assembly to intercept solid impurities will rotate to the top of the waste outlet and pour out the filtered solid impurities through the waste outlet, and the next guide plate 2 will rotate to a position that cooperates with the filter assembly to continue the diversion work. The guide plate 2 is fixedly connected to the end of the filter assembly close to the filter assembly. The bristles 11 can scrape and clean the filter assembly during the movement of the guide plate 2.

[0030] When the guide plate 2 intercepts solid impurities in the sewage, a plurality of intercepting rods 10 are fixedly connected to its upward side surface. The position where the water inlet pipe communicates with the outer shell 1 is located at the end of the guide plate 2 close to the rotating shaft 9. When the sewage enters the interior of the outer shell 1, it will flow to the filter component under the guidance of the guide plate 2. At this time, the intercepting rods 10 can intercept the solid impurities in the sewage, reduce the accumulation of solid impurities on the filter component, and thus reduce the probability of the filter component being blocked.

[0031] Embodiment 2: On the basis of the first embodiment, in order to reduce the accumulation of sludge on the filter assembly, the filter assembly can adopt the following settings, specifically, as follows: The filter assembly includes an outer plate 3, an inner plate 4 and an elastic connecting portion 5. The outer plate 3 and the inner plate 4 are both arc-shaped, and the center of the arc coincides with the axis of the rotating shaft 9. The outer plate 3 and the inner plate 4 fit each other, and filter holes are provided on the outer plate 3 and the inner plate 4. The projection of the filter hole on the outer plate 3 and the filter hole on the inner plate 4 partially overlap (such as Figure 4 and Figure 8 As shown in the figure), a staggered water flow channel is formed, which will generate turbulence when the sewage passes through, thereby reducing the accumulation of sludge on the inner wall of the filter hole.

[0032] The elastic connection part 5 is located at the lower end of the outer plate 3 and the inner plate 4. The shape of the elastic connection part is "U"-shaped. The two ends of its open end are fixedly connected to the outer plate 3 and the inner plate 4 respectively, and the closed end is folded toward the direction of the guide plate 2 and protrudes from the inner plate 4. The elastic connection part 5 can assist in supporting the guide plate 2, so that the guide plate 2 can perform the diversion and interception work more stably.

[0033] Embodiment three: On the basis of the second embodiment, in order to further improve the cleaning effect, a plurality of protrusions 6 are fixedly connected on one side surface of the inner plate 4 close to the guide plate 2, and the protrusions 6 are interference fit with the guide plate 2. The plurality of protrusions 6 are distributed on the inner plate 4 along the movement direction of the guide plate 2. At the same time, a plurality of convex strips 7 are fixedly arranged on the one side surface of the outer plate 3 close to the inner plate 4, and a card slot 8 which is interference fit with the convex strips 7 is arranged on the inner plate 4. During the movement of the guide plate 2, the protrusions 6 will be continuously squeezed and collided, so that the inner plate 4 is pushed in the direction of the elastic connection part 5. When the guide plate 2 passes over the protrusions 6, due to the resilience of the elastic connection part 5, the inner plate 4 will be reset, so that the inner plate 4 can be continuously vibrated during the movement of the guide plate 2. At this time, the protrusions 7 and the card slots 8 can increase the vibration amplitude of the inner plate 4. At the same time, during the continuous vibration of the inner plate 4, the filter holes on it can be continuously alternated between the overlapping state and the staggered state. At this time, the solid impurities stuck between the two filter holes will be washed away by the water flow, so as to avoid blocking the filter holes and affecting the filtering efficiency.

[0034] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A self-cleaning sewage filter device, characterized in that: include: A housing (1), wherein a water inlet pipe is provided on one side of the housing (1), and a water outlet and a waste outlet are respectively provided at the lower end of the housing (1); A filter assembly, the filter assembly being installed inside the housing (1) and located in the upper space between the water outlet and the waste outlet; A plurality of guide plates (2), the plurality of guide plates (2) being used to guide sewage entering the interior of the housing (1) to the filter assembly and capable of intercepting solid impurities in the sewage; The plurality of guide plates (2) perform the diversion work alternately. When the set time is reached, the current guide plate (2) will be separated from the filter assembly, and the solid impurities thereon will be dumped into the waste outlet. The next guide plate (2) will move to the diversion position to perform the diversion work, and the next guide plate (2) will clean the filter assembly during the movement.

2. A self-cleaning sewage filtering device as claimed in claim 1, characterized in that: The filter assembly comprises: An outer plate (3), the outer plate (3) being fixedly connected to the interior of the outer shell (1); An inner plate (4), the inner plate (4) being located on a side of the outer plate (3) close to the guide plate (2); An elastic connection portion (5), the elastic connection portion (5) being located at the lower ends of the outer plate (3) and the inner plate (4) and being used to connect the outer plate (3) and the inner plate (4); Wherein, filtering holes are provided on both the outer plate (3) and the inner plate (4).

3. A self-cleaning sewage filtering device as claimed in claim 2, characterized in that: The projections of the filter holes on the outer plate (3) and the filter holes on the inner plate (4) partially overlap each other.

4. A self-cleaning sewage filtering device as claimed in claim 2, characterized in that: A plurality of protrusions (6) which are interference-fitted with the guide plate (2) are fixedly connected to a side surface of the inner plate (4) away from the outer plate (3), and the plurality of protrusions (6) are distributed on the inner plate (4) along the movement track of the guide plate (2).

5. A self-cleaning sewage filtering device as claimed in claim 4, characterized in that: The elastic connection portion (5) is in a "U" shape, with both ends of its open end being fixedly connected to the outer plate (3) and the inner plate (4) respectively, and the closed end being folded toward the guide plate (2) and protruding from the inner plate (4).

6. A self-cleaning sewage filtering device as claimed in claim 5, characterized in that: A plurality of convex strips (7) are fixedly connected to a side surface of the outer plate (3) close to the inner plate (4), and the convex strips (7) are interference-fitted with the clamping grooves (8) provided on the inner plate (4).

7. A self-cleaning sewage filtering device as claimed in claim 2, characterized in that: The plurality of guide plates (2) are fixedly mounted on a rotating shaft (9) provided inside the outer shell (1); the rotating shaft (9) is driven by a motor (12) mounted on the outer shell (1); the outer plate (3) and the inner plate (4) are both arc-shaped, and the centers of the outer plate (3) and the inner plate (4) coincide with the axis of the rotating shaft (9).

8. A self-cleaning sewage filtering device as claimed in claim 7, characterized in that: Brushes (11) for cleaning the filter assembly are fixedly mounted on the guide plate (2).

9. A self-cleaning sewage filtering device as claimed in claim 8, characterized in that: When the guide plate (2) intercepts solid impurities in sewage, a plurality of interception rods (10) are fixedly connected to one side surface thereof facing upward.

10. A self-cleaning sewage filtering device as claimed in claim 9, characterized in that: The position where the water inlet pipe communicates with the outer shell (1) is located at one end of the guide plate (2) close to the rotating shaft (9).

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