Sewage filtering device

Abstract

The invention discloses a sewage filtering device, the sewage filtering device comprises a shell, a filtering part, a first transportation part and a second transportation part, the shell is provided with a first cavity and a second cavity which are mutually independent, the first cavity is suitable for introducing sewage, the second cavity is suitable for storing impurities, the filtering part is arranged in the first cavity, the filtering part is used for filtering the impurities in the sewage, and the second transportation part is used for transporting the impurities in the sewage. The first transporting part is arranged in the shell, the two ends of the first transporting part are located in the first cavity and the second cavity respectively, the first transporting part rotates between a first position and a second position around the width direction of the shell relative to the second cavity, and in the first position, the first transporting part is arranged on the filtering part; at the first position, the first transporting part and the filtering part are oppositely arranged at intervals in the vertical direction, and the second transporting part is arranged below the second cavity and communicates with the second cavity so as to transport the impurities in the second cavity. The sewage filtering device has the advantages of simple structure, low cost and the like.

Description

Technical Field

[0001] The invention relates to the field of sewage treatment, and in particular to a sewage filtering device. Background Art

[0002] Usually, before sewage enters the primary sedimentation tank, it is necessary to separate large-sized debris and impurities in the sewage flow channel to prevent the debris from clogging the sewage flow channel.

[0003] In the related art, a filter grid is set in the sewage flow channel (usually a sewage ditch or a water collection ditch). The filter grid usually adopts a plurality of grid frames, which are welded by steel bars to intercept and separate the debris in the sewage. However, the debris intercepted in front of the grid frame is entangled and accumulated, which is difficult to clean, and it is easy to cause the water flow efficiency of the flow channel to gradually decrease. In order to completely clean the grid frame and prevent the intercepted debris from being mixed into the sewage during the cleaning process, it is usually necessary to lift the grid frame out of the flow channel for cleaning, which is time-consuming and labor-intensive. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention provides a sewage filtering device with high filtering efficiency and convenient cleaning.

[0006] According to an embodiment of the present invention, the sewage filtering device includes: a shell, the shell having a first cavity and a second cavity that are independent of each other, the first cavity is suitable for passing sewage, and the second cavity is suitable for storing impurities; a filter element, the filter element is arranged in the first cavity, and the filter element is used to filter impurities in the sewage; a first transport element, the first transport element is arranged in the shell and the two ends of the first transport element are respectively located in the first cavity and the second cavity, the first transport element rotates between a first position and a second position around the width direction of the shell relative to the second cavity, in the first position, the first transport element is arranged on the filter element, so that impurities on the filter element are transported to the second cavity by the first transport element, and in the second position, the first transport element and the filter element are arranged opposite to each other in the up and down directions; a second transport element, the second transport element is arranged below the second cavity and communicated with the second cavity, so as to transport impurities in the second cavity.

[0007] The sewage filtering device of the embodiment of the present invention is provided with a shell, a filter element, a first transport element and a second transport element, which ensure the filtering efficiency of the filter element and prevent the accumulation of impurities in the filter element. The impurities in the second cavity are transported by the second transport element, thereby ensuring the storage efficiency of the second cavity. There is no need to disassemble and clean the filter element, and the device has a simple structure, low cost and high filtering efficiency.

[0008] In some embodiments, the shell further includes a partition, which extends in the up-down direction and is located inside the shell so that the partition divides the shell into the first chamber and the second chamber, and a through hole is provided on the partition which penetrates the partition along its thickness direction, the filter element is located below the through hole and is arranged adjacent to the through hole, and the first transport element passing through the through hole is respectively located in the first chamber and the second chamber.

[0009] In some embodiments, the filter element extends downward from top to bottom and is inclined in a direction away from the second cavity, and one end of the filter element adjacent to the second cavity is flush with a lower end surface of the through hole.

[0010] In some embodiments, the first transport member includes a telescopic member and a scraper, one end of the telescopic member is rotatably disposed in the second cavity, and the other end of the telescopic member is located in the first cavity and connected to the scraper. In the first position, the scraper is located on the filter element and the telescopic member is shortened to drive the scraper to scrape impurities on the filter element. In the second position, the scraper is located above the filter element and is spaced apart from the filter element in the up and down directions, and the telescopic member is extended to drive the scraper to move in a direction away from the second cavity.

[0011] In some embodiments, the sewage filtering device further includes a driving member, which is rotatably disposed in the second cavity and connected to the telescopic member so as to drive the telescopic member to rotate between the first position and the second position.

[0012] In some embodiments, the sewage filtering device also includes a water inlet pipe, which is disposed in the first cavity and connected to the first cavity, and the upper end of the water inlet pipe is located above the filter element. The water inlet pipe is suitable for passing sewage so that the sewage flows into the first cavity through the water inlet pipe.

[0013] In some embodiments, the sewage filtering device also includes an outlet pipe, the upper end of which is passed through the first cavity and located below the filter element, the cross-sectional area of ​​the upper end of the outlet pipe gradually decreases from top to bottom, and one end of the outlet pipe passes through the first cavity so that the filtered sewage can be discharged through the outlet pipe.

[0014] In some embodiments, the sewage filtering device also includes a collecting piece, which is arranged in the second cavity and below the first transport piece. The collecting piece has an inlet, an outlet and a collecting cavity. The inlet is located above the collecting piece, and the outlet is located below the collecting piece and is connected to the second transport piece so that the impurities flow into the transport piece. The cross-sectional area of ​​the inner circumference of the collecting piece gradually decreases from top to bottom.

[0015] In some embodiments, the second transport member includes a shell and a spiral blade, the spiral blade is rotatably disposed in the shell, and the shell is communicated with the second cavity, so that the second transport member transports the impurities.

[0016] In some embodiments, the shell extends from top to bottom and is inclined toward a direction adjacent to the first cavity, and the second transport member also includes a drain pipe, which is arranged at one end of the shell adjacent to the first cavity and is connected to the shell so that the sewage in the shell can be discharged through the drain pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a sewage filtering device according to an embodiment of the present invention.

[0018] Sewage filtering device 100;

[0019] Shell 1; first chamber 11; second chamber 12; partition 13; water inlet pipe 14; water outlet pipe 15; collecting member 16; through hole 17; filter member 2; first transport member 3; telescopic member 31; scraper 32; driving member 33; second transport member 4; outer shell 41; spiral blade 42; drain pipe 5. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0021] The sewage filtering device 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0022] like Figure 1 As shown, the sewage filtering device 100 according to the embodiment of the present invention includes a housing 1 , a filtering element 2 , a first transport element 3 and a second transport element 4 .

[0023] The housing 1 has a first chamber 11 and a second chamber 12 which are independent of each other. The first chamber 11 is suitable for passing sewage, and the second chamber 12 is suitable for storing impurities. Figure 1 As shown, the shell 1 is made of high-strength, corrosion-resistant materials to adapt to various harsh environmental conditions that may be encountered during sewage treatment. The shell 1 is generally rectangular and has a first cavity 11 and a second cavity 12 arranged in sequence along the left and right directions. The first cavity 11 is a filter cavity, and sewage can be passed into the first cavity 11 so that the sewage is filtered in the first cavity 11. The second cavity 12 is a storage cavity, and the filtered impurities in the first cavity 11 can be stored in the second cavity 12.

[0024] The filter element 2 is disposed in the first chamber 11, and the filter element 2 is used to filter impurities in the sewage. Figure 1As shown, the filter element 2 is a filter mesh and the filter element can adopt a multi-layer filter mesh. The filter element 2 is installed in the first cavity 11 and the inner circumference of the filter element 2 is connected to the inner circumference of the first cavity 11. The main function of the filter element 2 is to filter impurities in sewage to ensure that only purified water can pass through the filter element 2 and flow under the filter element 2.

[0025] The first transport member 3 is disposed in the housing 1 and the two ends of the first transport member 3 are respectively located in the first cavity 11 and the second cavity 12. The first transport member 3 is disposed in the width direction of the housing 1 (eg Figure 1 The filter element 2 is rotated between a first position and a second position (in the front-to-back direction shown in the figure). In the first position, the first transport member 3 is arranged on the filter element 2 so that impurities on the filter element 2 are transported to the second cavity 12 by the first transport member 3. In the second position, the first transport member 3 and the filter element 2 are arranged opposite to each other in the vertical direction. Specifically, Figure 1 As shown, the left end of the first transport member 3 is arranged in the first cavity 11, and the right end of the first transport member 3 is inserted into the second cavity 12 and is rotatably connected to the inner circumference of the second cavity 12. The first transport member 3 can rotate around the front and rear directions at the first position and the second position. When the first transport member 3 rotates to the first position, the left end of the first transport member 3 is arranged on the filter element 2 and cooperates with the filter element 2, so that impurities on the filter element 2 are transported by the first transport member 3. In the second position, the left end of the first transport member 3 is located above the filter element 2 and is spaced relative to the filter element 2 in the up and down directions to avoid affecting the normal filtering process of the sewage, so that the first transport member 3 can be cleaned and maintained without interfering with the operation of the filter element 2.

[0026] The second transport member 4 is disposed below the second cavity 12 and communicates with the second cavity 12 so as to transport the impurities in the second cavity 12. Figure 1 As shown, the second transport member 4 is disposed below the second cavity 12 and communicated with the outlet of the second cavity 12 , thereby ensuring that impurities in the second cavity 12 can be smoothly transported out of the second cavity 12 and preventing impurities from accumulating in the second cavity 12 .

[0027] The sewage filtering device 100 of the embodiment of the present invention is provided with a shell 1, a filter element 2, a first transport element 3 and a second transport element 4, and the shell 1 is divided into a first chamber 11 and a second chamber 12, so that the sewage is filtered in the first chamber 11, and the filtered impurities are transported to the second chamber 12 through the first transport element 3, thereby ensuring the filtering efficiency of the filter element 2 and preventing the accumulation of impurities in the filter element 2. The impurities in the second chamber 12 are transported by the second transport element 4, thereby ensuring the storage efficiency of the second chamber 12. Compared with the related art, there is no need to disassemble and clean the filter element 2, the device has a simple structure, low cost and high filtering efficiency.

[0028] In some embodiments, the housing 1 further includes a partition 13, which extends in the up-down direction and is located in the housing 1, so that the partition 13 divides the housing 1 into a first chamber 11 and a second chamber 12, and a through hole 17 is provided on the partition 13 that penetrates the partition 13 along its thickness direction, the filter element 2 is located below the through hole 17 and is disposed adjacent to the through hole 17, and the first transport element 3 that passes through the through hole 17 is located in the first chamber 11 and the second chamber 12, respectively. Specifically, as Figure 1 As shown, the partition 13 is a vertical plate extending in the up-down direction, and the outer peripheral side of the partition 13 is connected to the inner peripheral surface of the shell 1, so that the partition 13 divides the shell 1 into a first cavity 11 and a second cavity 12. The partition 13 is provided with a through hole 17 penetrating the partition 13 in the left-right direction, and the filter element 2 is arranged below the through hole 17. The first transport element 3 passes through the partition 13 and extends into the first cavity 11, so that the first cavity 11 and the second cavity 12 are separated by the partition 13.

[0029] In some embodiments, the filter element 2 extends downward from top to bottom and is inclined in a direction away from the second cavity 12, and one end of the filter element 2 adjacent to the second cavity 12 is flush with the lower end surface of the through hole 17. Figure 1 As shown, the filter element 2 extends leftward from the lower end surface of the through hole 17 and tilts downward, thereby ensuring that the sewage moves leftward and preventing debris from accumulating at the through hole 17 and affecting the transport efficiency of the first transport element 3.

[0030] In some embodiments, the first transport member 3 includes a telescopic member 31 and a scraper 32. One end of the telescopic member 31 is rotatably disposed in the second cavity 12, and the other end of the telescopic member 31 is located in the first cavity 11 and connected to the scraper 32. In the first position, the scraper 32 is located on the filter element 2 and the telescopic member 31 is shortened to drive the scraper 32 to scrape impurities on the filter element 2. In the second position, the scraper 32 is located above the filter element 2 and is spaced apart from the filter element 2 in the vertical direction. The telescopic member 31 is extended to drive the scraper 32 to move in a direction away from the second cavity 12. Specifically, as Figure 1As shown, the telescopic member 31 can be a telescopic rod, and the base of the telescopic member 31 is hinged on the right side surface of the second cavity 12, the telescopic rod of the telescopic member 31 passes through the through hole 17 and extends into the through hole 17, and the telescopic member 31 can rotate between the first position and the second position, and the scraper 32 is a vertical plate extending in the front-to-back direction and is fixedly installed at the left end of the telescopic member 31, so that the telescopic member 31 drives the scraper 32 to move in the left-right direction. When the telescopic member 31 is in the first position, the scraper 32 is located on the filter element 2 and at the left end of the filter element 2. The telescopic member 31 shortens and drives the scraper 32 to move rightward to scrape impurities on the filter element 2, so that the impurities of the filter element 2 are scraped into the second cavity 12 through the through hole 17. In the second position, the telescopic member 31 drives the scraper 32 to rotate upward, so that the scraper 32 is separated from the filter element 2. At this time, the telescopic member 31 is re-extended to ensure the scraping efficiency of the subsequent scraper 32, thereby ensuring the filtering efficiency of the filter element 2.

[0031] In some embodiments, the sewage filtering device 100 further includes a driving member 33, which is rotatably disposed in the second chamber 12 and connected to the telescopic member 31, so as to drive the telescopic member 31 to rotate between the first position and the second position. Figure 1 As shown, the driving member 33 is a cylinder and the left and right ends of the driving member 33 are respectively hinged to the inner circumference of the second cavity 12 and the telescopic member 31, so that the driving member 33 drives the first transport member 3 to rotate between the first position and the second position.

[0032] In some embodiments, the sewage filtering device 100 further includes a water inlet pipe 14, which is disposed in the first cavity 11 and communicates with the first cavity 11, and the upper end of the water inlet pipe 14 is located above the filter element 2, and the water inlet pipe 14 is suitable for passing sewage so that the sewage flows into the first cavity 11 through the water inlet pipe 14. Specifically, Figure 1 As shown, the water inlet pipe 14 is disposed at the upper end of the first cavity 11 and is located on the filter element 2 . The water inlet pipe 14 is connected to a pump, and sewage can be transported into the water inlet pipe 14 through the pump.

[0033] In some embodiments, the sewage filtering device 100 further includes an outlet pipe 15, the upper end of which is disposed in the first cavity 11 and is located below the filter element 2, and the cross-sectional area of ​​the upper end of the outlet pipe 15 gradually decreases from top to bottom, and one end of the outlet pipe 15 passes out of the first cavity 11 so that the filtered sewage can be discharged through the outlet pipe 15. Specifically, Figure 1 As shown, the upper end of the water outlet pipe 15 is arranged in the first cavity 11 and is funnel-shaped. The outer circumferential surface of the upper end of the water outlet pipe 15 is connected to the inner circumferential surface of the first cavity 11 and the upper end of the water outlet pipe 15 is arranged opposite to the filter element 2 in the up and down directions, so as to collect the filtered sewage and discharge the filtered sewage out of the first cavity 11 through the water outlet pipe 15.

[0034] In some embodiments, the sewage filtering device 100 further includes a collecting member 16, which is disposed in the second chamber 12 and below the first transport member 3. The collecting member 16 has an inlet, an outlet and a collecting chamber, the inlet is located above the collecting member 16, and the outlet is located below the collecting member 16 and communicates with the second transport member 4 so that impurities flow into the transport member. The cross-sectional area of ​​the inner circumference of the collecting member 16 gradually decreases from top to bottom. Specifically, as Figure 1 As shown, the collecting member 16 is funnel-shaped with a cross-sectional area gradually decreasing from top to bottom. The collecting member 16 is arranged in the second cavity 12. An inlet is provided at the upper end of the collecting member 16 and the outer peripheral surface of the upper end of the collecting member 16 is connected to the inner peripheral surface of the second cavity 12. An outlet is provided at the lower end of the collecting member 16 and is connected to the second transport member 4, so that impurities in the second cavity 12 are transported to the second transport member 4 through the collecting member 16.

[0035] In some embodiments, the second transport member 4 includes a housing 41 and a spiral blade 42, the spiral blade 42 is rotatably disposed in the housing 41, and the housing 41 is connected to the second cavity 12, so that the second transport member 4 transports impurities. Figure 1 As shown, the second transport member 4 is a screw conveyor and includes a shell 41 and a spiral blade 42. The shell 41 is arranged below the second chamber 12 and extends in the left and right directions. The shell 41 is connected to the outlet of the collecting member 16. The spiral blade 42 is rotatably arranged in the shell 1, so that impurities are transported by the spiral blade 42 to prevent impurities from accumulating in the second chamber 12.

[0036] In some embodiments, the housing 41 extends downward from top to bottom and is inclined toward the direction adjacent to the first cavity 11. The second transport member 4 further includes a drain pipe 5, which is disposed at one end of the housing 41 adjacent to the first cavity 11 and communicates with the housing 41 so that the sewage in the housing 41 can be discharged through the drain pipe 5. Specifically, Figure 1 As shown, the second transport member 4 is arranged at an angle, the drain pipe 5 is arranged on the left side of the second transport member 4 and is connected to the left side of the second transport member 4 , and the moisture in the impurities is discharged through the drain pipe 5 .

[0037] The embodiment of the present invention provides a simple, efficient and low-cost sewage filtering device 100, which can filter larger-sized impurities and impurities in sewage, and automatically discharge them for temporary storage, and can be manually discharged and collected for transportation regularly. The device has a simple structure, extremely low operating costs, and is easy and labor-saving to operate manually.

[0038] According to the following Figure 1 The sewage filtering device 100 according to the embodiment of the present invention is described in detail:

[0039] The device is provided with a filter element 2 in the housing 1 to block impurities, and a first transport element 3 is provided to automatically and regularly discharge the impurities to the second chamber 12. The amount of impurities accumulated on the filter element 2 is small, and the water flow efficiency is not affected;

[0040] The impurities and foreign bodies in the second chamber 12 are transported outwards by the second transport member 4 (e.g., a screw feeder), which is convenient for manual operation and has extremely low strength;

[0041] After a period of storage, the impurities in the second chamber 12 have residual moisture discharged at any time, and the water content of the impurities is relatively low.

[0042] The device is composed of a housing 1 , a water inlet pipe 14 , a water outlet pipe 15 , a first transport member 3 , a collecting member 16 , and a second transport member 4 .

[0043] The housing 1 is a square housing 1, and the housing 1 is supported by a bracket at the bottom;

[0044] A partition 13 is provided in the middle of the shell 1 to separate the shell 1 into a first chamber 11 and a second chamber 12. A through square hole is provided in the upper middle of the partition 13 as an impurity passage.

[0045] The water inlet pipe 14 extends deep into the shell 1 from the upper part or top of the shell 1;

[0046] A filter 2 is arranged at the middle height position of the shell 1. The filter 2 is a steel plate with dense small holes, which is used for liquid leakage and blocking impurities. The filter 2 is placed tilted, with its high point flush with the bottom of the opening of the partition 13, and its low point connected to the side wall of the shell 1. The tilt angle of the partition 13 is designed according to the actual situation of the system to ensure that the liquid can leak smoothly and will not overflow into the second impurity chamber 12.

[0047] The upper end of the water outlet pipe 15 is a water collecting cone funnel and is arranged in the first cavity 11. The lower end of the water outlet pipe 15 passes through the outside of the first cavity 11. The water outlet pipe 15 is used to discharge the filtered sewage.

[0048] A first transport member 3 is provided on the upper part of the second chamber 12 for pushing the impurities blocked on the filter member 2 to the impurity second chamber 12;

[0049] The main body of the first transport member 3 is a push cylinder (the base is a pin type or an earring type to facilitate the swing of the cylinder), the base of which is fixed on the side wall of the second chamber 12, and a push plate is welded on the end of the cylinder piston rod; under the control of the controller, the piston rod drives the push plate to reciprocate: when the piston rod contracts, the push plate can push the impurities above the filter element 2 into the second chamber 12, and then the piston rod is extended again until the push plate reaches a position close to the side wall of the shell 1 and stops, waiting for a certain period of time, when the filter element 2 has blocked a certain amount of impurities, the above-mentioned push and reset actions are started again, and this cycle is repeated to complete the cleaning of impurities;

[0050] In addition, a driving member 33 is also arranged below the aforementioned pusher. The driving member 33 is a lifting cylinder, whose base is fixed on the side wall of the housing 1, and the end of the piston rod is fixed on the outer wall of the first transport member 3, which is used to lift the pusher. Its working rhythm is: when the first transport member 3 pushes materials to the second chamber 12, the driving member 33 does not move (that is, the lifting cylinder is in a free movable state and does not apply external force to the pusher). When the first transport member 3 completes a push and the push plate begins to reset, the driving member 33, under the control of the controller, lifts the first transport member 3 to a certain height to prevent the push plate from pushing impurities to the outer wall of the housing 1, making it difficult to clean. When the push plate is completely reset, the driving member 33 releases its force, and the push plate falls again to a position close to the filter element 2.

[0051] Therefore, the driving member 33 moves along with the periodic movement of the pusher, and the movements of the first transport member 3 and the driving member 33 are automatically controlled by the controller, and the movement cycle can be flexibly set on the controller as needed.

[0052] A collecting member 16 is provided at the lower part of the second impurity chamber 12. The collecting member 16 is in a square cone shape to avoid poor material discharge.

[0053] The bottom of the collecting member 16 is connected to the second transport member 4, which can regularly transport the impurities in the second chamber 12 to the outside. The second transport member 4 is arranged obliquely, and the outlet is at a high point to prevent the water mixed with impurities from flowing out. At the same time, a hole is opened at the bottom of the cylinder wall at the low point of the second transport member 4, which is connected to the drainage pipe 5, so that the water carried out by the impurities can be discharged.

[0054] It is worth noting that: the top of the housing 1 can be made into a cover plate, and the cover plate can be a movable cover plate or a cover plate with holes;

[0055] The filter element 2 can be in various forms. The above-mentioned steel plate opening is only one of them. A grid plate, or a bottom steel frame, a filter screen arranged on the frame, etc. can also be used to achieve sewage filtration.

[0056] The driving form of the first transport member 3 and the driving member 33 is not limited to the above-mentioned pneumatic form, and various forms such as electric push rods, electro-hydraulic push rods, hydraulic push rods, etc., or their combination forms can also be adopted.

[0057] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0058] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0059] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0061] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0062] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A sewage filtering device, characterized in that: include: A housing, wherein the housing has a first chamber and a second chamber that are independent of each other, wherein the first chamber is suitable for introducing sewage, and the second chamber is suitable for storing impurities; A filter element, the filter element is disposed in the first cavity, and the filter element is used to filter impurities in the sewage; a first transport member, the first transport member is arranged in the shell and the two ends of the first transport member are respectively located in the first cavity and the second cavity, the first transport member rotates between a first position and a second position relative to the second cavity around the width direction of the shell, in the first position, the first transport member is arranged on the filter element so that impurities on the filter element are transported to the second cavity through the first transport member, and in the second position, the first transport member and the filter element are arranged opposite to each other in the up-down direction with a spacing therebetween; The second transport member is disposed below the second cavity and communicated with the second cavity so as to transport impurities in the second cavity.

2. The sewage filtering device according to claim 1, characterized in that: The shell also includes a partition, which extends in the up and down directions and is located in the shell so that the partition divides the shell into the first chamber and the second chamber. The partition is provided with a through hole that penetrates the partition along its thickness direction. The filter element is located below the through hole and is arranged adjacent to the through hole. The first transport element passes through the through hole and is respectively located in the first chamber and the second chamber.

3. The sewage filtering device according to claim 2, characterized in that: The filter element extends downward from top to bottom and is inclined in a direction away from the second cavity. One end of the filter element adjacent to the second cavity is flush with the lower end surface of the through hole.

4. The sewage filtering device according to claim 1, characterized in that: The first transport member includes a telescopic member and a scraper, one end of the telescopic member is rotatably disposed in the second cavity, and the other end of the telescopic member is located in the first cavity and connected to the scraper. In the first position, the scraper is located on the filter element and the telescopic member is shortened to drive the scraper to scrape impurities on the filter element. In the second position, the scraper is located above the filter element and is spaced apart from the filter element in the up and down directions, and the telescopic member is extended to drive the scraper to move in a direction away from the second cavity.

5. The sewage filtering device according to claim 4, characterized in that: The device also includes a driving member, which is rotatably disposed in the second cavity and connected to the telescopic member so as to drive the telescopic member to rotate between the first position and the second position.

6. The sewage filtering device according to claim 1, characterized in that: It also includes a water inlet pipe, which is arranged in the first cavity and communicated with the first cavity. The upper end of the water inlet pipe is located above the filter element. The water inlet pipe is suitable for introducing sewage so that the sewage flows into the first cavity through the water inlet pipe.

7. The sewage filtering device according to claim 1, characterized in that: It also includes a water outlet pipe, the upper end of which is inserted into the first cavity and located below the filter element, the cross-sectional area of ​​the upper end of the water outlet pipe gradually decreases from top to bottom, and one end of the water outlet pipe passes out of the first cavity so that the filtered sewage can be discharged through the water outlet pipe.

8. The sewage filtering device according to claim 1, characterized in that: It also includes a collecting piece, which is arranged in the second cavity and below the first transport piece. The collecting piece has an inlet, an outlet and a collecting cavity. The inlet is located above the collecting piece, and the outlet is located below the collecting piece and is connected to the second transport piece so that the impurities can flow into the transport piece. The cross-sectional area of ​​the inner circumference of the collecting piece gradually decreases from top to bottom.

9. The sewage filtering device according to claim 1, characterized in that: The second transport member includes a shell and a spiral blade, wherein the spiral blade is rotatably disposed in the shell, and the shell is communicated with the second cavity so that the second transport member transports the impurities.

10. The sewage filtering device according to claim 9, characterized in that: The shell extends downward from top to bottom and is inclined toward a direction adjacent to the first cavity. The second transport member also includes a drain pipe, which is arranged at one end of the shell adjacent to the first cavity and is connected to the shell so that sewage in the shell can be discharged through the drain pipe.

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