Waste intercepting device and drainage system

Abstract

The application relates to the technical field of drainage devices, and provides a garbage interception device and a drainage system, wherein the garbage interception device comprises a drainage pipeline and an interception assembly. The interception assembly comprises a scraper and a filter screen, the filter screen is arranged in the interior of the drainage pipeline, the scraper is movably arranged in the interior of the drainage pipeline, and the scraper is used for scraping garbage on the filter screen away from the filter screen. The garbage interception device provided by the application can intercept garbage flowing in the drainage pipeline on the filter screen or on one side of the filter screen through the arrangement of the filter screen, and the garbage intercepted by the filter screen can be scraped away from the filter screen through the arrangement of the scraper, so that the filter screen is prevented from being blocked by garbage. The garbage interception device provided by the application not only can reduce the garbage entrained in the water flow flowing out of the drainage pipeline, but also can prevent the intercepted garbage from blocking the filter screen, so that the drainage pipeline is prevented from being blocked, the drainage is ensured to be smooth, and the pollution of water resources is reduced.

Description

Technical Field

[0001] This application relates to the field of drainage device technology, and more particularly to a waste interception device and drainage system. Background Technology

[0002] With the rapid urbanization in my country, the contradiction between urban water supply and demand has become prominent, increasingly becoming a significant factor restricting the sustainable development of Chinese cities. Water pollution is one of the main causes of this contradiction. Roads, as an important part of urban water catchment areas, carry garbage such as plastic bags, dead branches, and fallen leaves in the collected water, which severely pollutes the water resources.

[0003] In related technologies, a drainage system is used to collect water from the road surface. The drainage system consists of multiple drainage pipes buried underground. The inlets of the drainage pipes are connected to groundwater wells, and their outlets are generally located on the side wall of the river channel to collect water from the road surface into the river channel. The drainage pipes are equipped with filters to remove garbage.

[0004] As water accumulates on the road and flows into the drainage system, the water flow carries with it debris such as plastic bags, dead branches, and dead leaves into the drain pipes. Although the debris is filtered and intercepted by the filter screen, a large amount of debris will remain on the filter screen over time, causing blockages in the drainage pipes. Cleaning this debris from the filter screen is very inconvenient. Summary of the Invention

[0005] In view of the above problems, this application provides a garbage interception device and a drainage system. The garbage interception device can intercept the garbage flowing in the drainage pipe and can also clean the garbage on the filter screen to avoid blockage of the drainage pipe and ensure smooth drainage.

[0006] In the first aspect, the technical solution adopted in the embodiments of this application is: to provide a waste interception device, including a drainage pipe and an interception component.

[0007] The interception component includes a scraper and a filter screen. The filter screen is disposed inside the drainage pipe, and the scraper is movably disposed inside the drainage pipe and is used to scrape the debris off the filter screen.

[0008] The beneficial effects of the waste interception device provided in this application are as follows: by setting up a filter screen, waste flowing in the drainage pipe can be intercepted on the filter screen or on one side of the filter screen, and by setting up a scraper, the waste intercepted by the filter screen can be scraped away from the filter screen, thus preventing the filter screen from being blocked by waste. This not only reduces the amount of waste carried in the water flowing out of the drainage pipe, but also prevents the intercepted waste from clogging the filter screen, thereby avoiding drainage pipe blockage, ensuring smooth drainage, and reducing water pollution.

[0009] In some embodiments, one end of the filter screen is rotatably connected to the drain pipe so that the filter screen can switch between a filtering posture and a cleaning posture. In the filtering posture, the filter screen is used to intercept the garbage flowing along the drain pipe. In the cleaning posture, the extension direction of the filter screen is parallel to the flow direction of the garbage in the drain pipe. The scraper is used to scrape the garbage off the filter screen in the cleaning posture.

[0010] In some embodiments, the waste interception device further includes a power component, and the filter and the scraper can move synchronously under the drive of the power component.

[0011] In some embodiments, the power assembly includes a linear reciprocating mechanism and a conversion mechanism. The scraper is connected to the drive end of the linear reciprocating mechanism, and the filter screen is connected to the drive end of the linear reciprocating mechanism through the conversion mechanism. The conversion mechanism is used to convert the translational motion of the drive end of the linear reciprocating mechanism into the rotational motion of the filter screen.

[0012] In some embodiments, when the filter screen is in the filtering posture, the scraper and the filter screen are arranged sequentially along the flow direction of the waste in the drainage pipe.

[0013] In some embodiments, at least two filters are provided, arranged sequentially along the flow direction of the waste in the drainage pipe, and the interception height of the filters increases sequentially when the filters are in the filtering posture.

[0014] In some embodiments, the waste interception device further includes a waste pool disposed on one side of the drainage pipe, and the waste pool has an opening communicating with the drainage pipe. The scraper is used to scrape the waste on the filter screen into the waste pool through the opening.

[0015] In some embodiments, the waste interception device further includes a sealing plate that covers the opening to isolate the internal space of the drainage pipe from the internal space of the waste pit. The sealing plate can also rotate relative to the drainage pipe to connect the internal space of the drainage pipe with the internal space of the waste pit.

[0016] In some embodiments, the waste interception device further includes a compression assembly disposed within the waste pool, the compression assembly being used to compress the waste within the waste pool.

[0017] Secondly, the technical solution adopted in this application embodiment is: to provide a drainage system, including an inlet pipe, a valve, and two sets of the above-mentioned first aspect of the garbage interception device. The inlet pipe is provided with a first outlet and a second outlet. The drainage pipe of one set of the garbage interception device is connected to the inlet pipe through the first outlet, and the drainage pipe of the other set of the garbage interception device is connected to the inlet pipe through the second outlet. The valve is movably disposed in the inlet pipe and is used to seal the first outlet or the second outlet.

[0018] The beneficial effects of the drainage system provided in this application are as follows: by setting up two sets of garbage interception devices, and the two sets of garbage interception devices are connected to the water inlet pipe through the first water outlet and the second water outlet respectively, and the first water outlet or the second water outlet is sealed by a valve, so that one garbage interception device is connected to the water inlet pipe for drainage; the other garbage interception device is disconnected from the water inlet pipe, and the scraper in the garbage interception device scrapes the garbage intercepted by the filter screen away from the filter screen; thus, without affecting drainage, the garbage intercepted on the filter screen is scraped away from the filter screen in a timely manner, so as to avoid blockage of the drainage pipe and ensure smooth drainage. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the drainage system in one embodiment of this application.

[0021] Figure label:

[0022] 1. Waste interception device; 11. Drainage pipe; 121. Scraper; 122. Filter screen; 123. Hinge seat; 124. Sealing plate; 125. Waste pool; 14. Power unit; 2. Water inlet pipe; 21. Water inlet section; 211. Water inlet; 22. Water outlet section; 221. First water outlet; 222. Second water outlet; 3. Valve. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0024] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0026] In this specification, references to "one embodiment," "some embodiments," or simply "embodiment" mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. Furthermore, in one or more embodiments, specific features, structures, or characteristics may be combined in any suitable manner.

[0027] Currently, to improve water resource utilization, drainage systems are used to collect water from roads. Specifically, these systems consist of multiple underground drainage pipes connected together. The inlets of these pipes are connected to groundwater wells, and their outlets are typically located on the sidewalls of river channels to collect accumulated water from roads and improve water resource utilization. However, during the process of water flowing into the drainage system, the water flow carries debris such as plastic bags, dead branches, and fallen leaves into the drainage pipes. This debris then enters the river, polluting the riverbed.

[0028] In related technologies, a filter screen is installed inside the drain pipe to intercept garbage carried by the flowing water, either on the screen or to one side of it. This reduces the amount of garbage in the water discharged from the drain pipe, thereby mitigating pollution of the river. Although the garbage is intercepted by the filter screen, over time a large amount of garbage will remain on the screen, causing blockages in the drain pipe. Cleaning this garbage from the filter screen is very inconvenient.

[0029] To address the problem of filter cleaning, this application proposes a waste interception device and a drainage system. The waste interception device can intercept the waste flowing in the drainage pipe and also clean the waste on the filter screen to avoid clogging of the drainage pipe and ensure smooth drainage.

[0030] To illustrate the technical solution of this application, the following description is provided in conjunction with specific accompanying drawings and embodiments.

[0031] Please refer to Figure 1 In one aspect, embodiments of this application provide a waste interception device 1, including a drainage pipe 11 and an interception component.

[0032] The interception assembly includes a scraper 121 and a filter screen 122. The filter screen 122 is disposed inside the drain pipe 11, and the scraper 121 is movably disposed inside the drain pipe 11 and is used to scrape the debris off the filter screen 122.

[0033] The waste interception device 1 provided in this application, by setting a filter screen 122, can intercept the waste flowing in the drainage pipe 11 onto the filter screen 122 or intercept it to one side of the filter screen 122. By setting a scraper 121, the waste intercepted by the filter screen 122 can be scraped away from the filter screen 122 to avoid the filter screen 122 being blocked by waste. This not only reduces the amount of waste carried in the water flowing out of the drainage pipe 11, but also prevents the intercepted waste from clogging the filter screen 122, thereby avoiding blockage of the drainage pipe 11, ensuring smooth drainage, and reducing water pollution.

[0034] In some embodiments, one end of the filter screen 122 is rotatably connected to the drain pipe 11 so that the filter screen 122 can switch between a filtering posture and a cleaning posture. In the filtering posture, the filter screen 122 is used to intercept garbage flowing along the drain pipe 11. In the cleaning posture, the extension direction of the filter screen 122 is parallel to the flow direction of the garbage in the drain pipe 11. The scraper 121 is used to scrape the garbage off the filter screen 122 in the cleaning posture.

[0035] Using the above solution, the filter 122 can be switched between filtering and cleaning modes by rotating the filter 122. The structure is simple and easy to operate.

[0036] Please refer to Figure 1 In one specific embodiment, a hinge seat 123 is provided on the inner wall of the drain pipe 11. The hinge seat 123 includes a fixed seat and a rotating member. The fixed seat is fixed to the inner wall of the drain pipe 11. One end of the filter screen 122 is disposed on one side of the fixed seat. The rotating member rotatably passes through the fixed seat and the filter screen 122 in sequence, so that the filter screen 122 can rotate relative to the drain pipe 11 to switch between a filtering posture and a cleaning posture.

[0037] Please refer to Figure 1 In one specific embodiment, when in the filtering posture, the filter screen 122 is horizontally arranged in the internal space of the drain pipe 11, and the filtering surface of the filter screen 122 intersects with the flow direction of the garbage in the drain pipe 11, so as to intercept the garbage.

[0038] Optionally, the width of the filter surface of the filter screen 122 can be equal to the width of the drain pipe 11, which can reduce the gap between the filter screen 122 and the inner wall of the drain pipe 11, so as to prevent the garbage flowing in the drain pipe 11 from flowing through the gap between the filter screen 122 and the inner wall of the drain pipe, thereby improving the filtration efficiency.

[0039] Optionally, the filter surface of the filter screen 122 is set perpendicular to the flow direction of the garbage in the drain pipe 11 to increase the contact area between the filter screen 122 and the water flowing in the drain pipe 11, thereby improving the filtration efficiency.

[0040] Please refer to Figure 1 In one specific embodiment, when cleaning up debris, the end of the filter screen 122 facing away from the hinge seat 123 moves closer to the inner wall to which the hinge seat 123 is fixed, causing the filter screen 122 to rotate into a cleaning posture. The scraper 121 has a first end and a second end. The first end is slidably connected to the inner wall of the drain pipe 11, and the second end extends above the filter screen 122 in the cleaning posture. By sliding the first end of the scraper 121 relative to the inner wall of the drain pipe 11, the second end of the scraper 121 can slide from one end of the filter screen 122 in the cleaning posture to the other end to scrape the debris off the filter screen 122.

[0041] Optionally, when cleaning the filter screen 122, the sliding direction of the scraper 121 is parallel to the flow direction of the garbage in the drain pipe 11. This setting allows the garbage to be scraped along the flow direction of the water in the drain pipe 11, making it easier to collect and remove the garbage scraped off the filter screen 122 later.

[0042] In some embodiments, when the filter screen 122 is in the filtering posture, the scraper 121 and the filter screen 122 are arranged sequentially along the flow direction of the garbage in the drain pipe 11.

[0043] Using the above scheme, when it is necessary to clean the garbage on the filter screen 122, the filter screen 122 rotates to the cleaning posture while the scraper 121 slides along the flow direction of the garbage in the drain pipe 11 to scrape the garbage away from the filter screen 122; when it is necessary to filter the garbage, the scraper 121 first slides to one side of the filter screen 122 in the opposite direction to the flow direction of the garbage in the drain pipe 11, and then the filter screen 122 rotates to the filtering posture.

[0044] Optionally, the filter screen 122 can be rotated and the scraper 121 can be slid by manual operation, or the filter screen 122 can be rotated and the scraper 121 can be slid automatically by an electric or pneumatic mechanism.

[0045] Taking the automatic drive of the filter screen 122 to rotate and the scraper 121 to slide by an electric or starting mechanism as an example, the garbage interception device 1 also includes a power component 14, and the filter screen 122 and the scraper 121 can move synchronously under the drive of the power component 14.

[0046] By adopting the above solution, the rotation of the filter screen 122 and the sliding of the scraper 121 can be automatically driven, which can not only reduce manual labor, but also precisely control the synchronous movement of the filter screen 122 and the scraper 121.

[0047] Please refer to Figure 1 In one specific embodiment, the power assembly 14 includes a linear reciprocating mechanism and a conversion mechanism. The scraper 121 is connected to the drive end of the linear reciprocating mechanism, and the filter screen 122 is connected to the drive end of the linear reciprocating mechanism through the conversion mechanism. The conversion mechanism is used to convert the translational motion of the drive end of the linear reciprocating mechanism into the rotational motion of the filter screen 122.

[0048] Optionally, the linear reciprocating mechanism may include two sets of linear modules. One set of linear modules is connected to the scraper 121 and is used to drive the scraper 121 to slide linearly. The other set of linear modules is connected to the filter screen 122 through a conversion mechanism and is used to drive the filter screen 122 to rotate. The two sets of linear modules work synchronously. The linear reciprocating mechanism may also include only one set of linear modules, which drives the filter screen 122 to rotate and the scraper 121 to slide.

[0049] The structure of the two settings mentioned above is not specifically limited here, but when driving the filter screen 122 to rotate and the scraper 121 to slide, the following process must be met: when it is necessary to clean the garbage on the filter screen 122, the filter screen 122 rotates to the cleaning posture, and the scraper 121 slides along the flow direction of the garbage in the drain pipe 11 to scrape the garbage away from the filter screen 122; when it is necessary to filter the garbage, the scraper 121 first slides to one side of the filter screen 122 in the opposite direction to the flow direction of the garbage in the drain pipe 11, and then the filter screen 122 rotates to the filtering posture.

[0050] Optionally, the linear reciprocating mechanism can be an electric or pneumatic telescopic rod. The scraper 121 is connected to the telescopic end of the telescopic rod, and the filter screen 122 is connected to the telescopic end of the telescopic rod via a conversion component.

[0051] In one specific embodiment, the conversion component includes a connecting plate, the two ends of which are rotatably connected to the filter 122 and the drive end of the linear reciprocating mechanism, respectively.

[0052] In some embodiments, at least two filter screens 122 are provided. Along the flow direction of the garbage in the drain pipe 11, at least two filter screens 122 are arranged in sequence, and when the filter screens 122 are in the filtering posture, the interception height of the filter screens 122 increases sequentially.

[0053] It should be noted that the interception height refers to the distance between the end of the filter screen 122 facing away from the hinge seat 123 and the inner wall of the drain pipe 11 connected to the hinge seat 123. Please refer to... Figure 1 Specifically, when in the filtering posture, the height of filter 122 is the interception height.

[0054] It should be noted that the trash may be located at different heights in the water. By progressively increasing the interception height of the filter screen 122 along the flow direction of the trash in the drainage pipe 11, the filter screen 122 at the front with a lower interception height can intercept trash at lower positions in the water, while the filter screen 122 at the front with a higher interception height can intercept trash at higher positions in the water, thus achieving multi-stage interception of trash. This prevents the filter screen 122 at the front from becoming clogged due to excessive interception of trash, which would affect the smooth flow of drainage.

[0055] Optionally, along the flow direction of the waste in the drain pipe 11, the filter holes of at least two filter screens 122 can be progressively smaller. With the above arrangement, the filter screen 122 located at the front can intercept larger volumes of waste, while the filter screen 122 located at the rear can intercept smaller volumes of waste. This multi-stage interception of waste prevents the filter screen 122 located at the front from becoming clogged due to excessive waste, thus affecting smooth drainage. It also improves filtration efficiency and reduces the amount of waste carried in the water flowing out of the drain pipe 11.

[0056] In some embodiments, the waste interception device 1 further includes a waste pool 125, which is disposed on one side of the drainage pipe 11 and has an opening communicating with the drainage pipe 11. The scraper 121 is used to scrape the waste on the filter screen 122 into the waste pool 125 through the opening.

[0057] By setting up a garbage bin 125, garbage can be temporarily stored in the garbage bin 125 and removed after accumulating a certain amount, which can extend the cleaning time.

[0058] Please refer to Figure 1 In one specific embodiment, the garbage bin 125 is located behind the filter screen 122 along the flow direction of garbage in the drainage pipe 11. And when the filter screen 122 is in the cleaning posture, the filter screen 122 covers part of the opening of the garbage bin 125. This arrangement allows all the garbage pushed by the scraper 121 to fall into the garbage bin 125.

[0059] Optionally, there may be one garbage bin 125, which is located behind the last filter 122; or there may be multiple garbage bins 125, with one garbage bin 125 located behind the last filter 122 and the remaining garbage bins 125 located between adjacent filters 122.

[0060] In some embodiments, the waste interception device 1 further includes a sealing plate 124, which covers the opening to isolate the internal space of the drainage pipe 11 from the internal space of the waste pool 125. The sealing plate 124 can also rotate relative to the drainage pipe 11 so that the internal space of the drainage pipe 11 and the internal space of the waste pool 125 are connected.

[0061] By setting a sealing plate 124, the internal space of the drainage pipe 11 and the internal space of the garbage pit 125 can be isolated, and when the drainage pipe 11 drains water, the garbage in the garbage pit 125 can be prevented from entering the water body.

[0062] Please refer to Figure 1 In one specific embodiment, along the flow direction of the garbage in the drainage pipe 11, the front end of the sealing plate 124 is rotatably connected to the hinge seat 123, and the sealing plate 124 is connected to the drive end of the linear reciprocating mechanism through the conversion component and rotates synchronously with the filter screen 122.

[0063] In some embodiments, the waste interception device 1 further includes a compression component disposed within the waste pool 125, which is used to compress the waste within the waste pool 125.

[0064] By setting up a compression component, the volume of garbage in garbage bin 125 can be reduced, extending the cleaning time.

[0065] The compression assembly may include a drive unit and a push plate. Optionally, the push plate is slidably disposed within the waste bin 125; and driven by the drive unit, the push plate can reciprocate within the waste bin 125. Please refer to [reference needed]. Figure 1 The sliding path of the pusher plate is parallel to the flow direction of the garbage in the drainage pipe 11. Specifically, after the scraper plate 121 scrapes the garbage into the garbage pit 125, the sealing plate 124 seals the opening of the garbage pit 125, and the pusher plate slides under the drive of the drive member to squeeze the garbage in the garbage pit 125, thereby reducing the volume of garbage in the garbage pit 125.

[0066] In some embodiments, the waste interception device 1 further includes a hoisting assembly for hoisting waste out of the waste pool 125.

[0067] Optionally, the hoisting assembly includes a crane and a garbage bin, which is located in the garbage pit 125 to store the garbage scraped off by the scraper 121; and, driven by the crane, the garbage bin can be detached from the garbage pit 125 and moved to the ground.

[0068] Secondly, the technical solution adopted in this application embodiment is: to provide a drainage system, including an inlet pipe 2, a valve 3 and two sets of the above-mentioned garbage interception devices 1. The inlet pipe 2 is provided with a first outlet 221 and a second outlet 222. The drainage pipe 11 in one set of garbage interception devices 1 is connected to the inlet pipe 2 through the first outlet 221, and the drainage pipe 11 in the other set of garbage interception devices 1 is connected to the inlet pipe 2 through the second outlet 222. The valve 3 is movably disposed in the inlet pipe 2, and the valve 3 is used to seal the first outlet 221 or the second outlet 222.

[0069] The drainage system provided in this application is configured with two sets of waste interception devices 1, which are connected to the water inlet pipe 2 via a first outlet 221 and a second outlet 222, respectively. A valve 3 is used to seal either the first outlet 221 or the second outlet 222, so that one waste interception device 1 is connected to the water inlet pipe 2 for drainage, while the other waste interception device 1 is disconnected from the water inlet pipe 2. The scraper 121 inside the waste interception device 1 scrapes the waste intercepted by the filter screen 122 away from the filter screen 122. Thus, the waste intercepted on the filter screen 122 is scraped away from the filter screen 122 in a timely manner without affecting drainage, so as to avoid blockage of the drainage pipe 11 and ensure smooth drainage.

[0070] Please refer to Figure 1 In one specific embodiment, the water inlet pipe 2 includes an inlet section 21 and an outlet section 22. One end of the inlet section 21 is connected to the outlet section 22, and the other end has an inlet port 211 for being flush with the ground or connected to an underground water well. The two ends of the outlet section 22 have a first outlet port 221 and a second outlet port 222, respectively. A valve 3 is horizontally disposed inside the outlet section 22, and the two ends of the valve 3 abut against the upper inner wall and the lower inner wall of the outlet section 22, respectively. By moving the valve 3, the inlet port 211 can be located on the same side of the valve 3 as the first outlet port 221, or it can be located on the same side of the valve 3 as the second outlet port 222, thereby sealing the second outlet port 222 or the first outlet port 221.

[0071] Optionally, the valve 3 is rotatably connected to the water inlet pipe 2. For details, please refer to... Figure 1 A rotating shaft is installed inside the water inlet pipe 2, and the rotating shaft is fixed to the inner wall of the water inlet pipe 2. A valve 3 is rotatably fitted onto the outer periphery of the rotating shaft. The rotation direction of the valve 3 is towards the first water outlet 221 and towards the second water outlet 222. Optionally, the valve 3 can also be slidably installed inside the water inlet pipe 2. Specifically, a sliding groove is provided on the inner wall of the water inlet pipe 2, and the valve 3 is engaged in the sliding groove and can slide along the length direction of the sliding groove. The length direction of the sliding groove is parallel to the length direction of the water outlet 22.

[0072] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A waste interception device, characterized in that, The system includes a drainage pipe and an interception assembly. The interception assembly includes a scraper and a filter screen. The filter screen is disposed inside the drainage pipe, and the scraper is movably disposed inside the drainage pipe and is used to scrape debris off the filter screen. One end of the filter screen is rotatably connected to the drainage pipe so that the filter screen can switch between a filtering posture and a cleaning posture. In the filtering posture, the filter screen is used to intercept the debris flowing along the drainage pipe. In the cleaning posture, the extension direction of the filter screen is parallel to the flow direction of the debris in the drainage pipe. When cleaning the filter screen, the sliding direction of the scraper is parallel to the flow direction of the debris in the drainage pipe, and the scraper is used to scrape the debris off the filter screen in the cleaning posture. The waste interception device also includes a power component, and the filter screen and the scraper can move synchronously under the drive of the power component; the power component includes a linear reciprocating mechanism and a conversion mechanism, the scraper is connected to the drive end of the linear reciprocating mechanism, and the filter screen is connected to the drive end of the linear reciprocating mechanism through the conversion mechanism. The conversion mechanism is used to convert the translational motion of the drive end of the linear reciprocating mechanism into the rotational motion of the filter screen. The filter screen is connected to the drive end of the linear reciprocating mechanism via an adapter. The adapter includes a connecting plate, and the two ends of the connecting plate are rotatably connected to the filter screen and the drive end of the linear reciprocating mechanism, respectively.

2. The waste interception device according to claim 1, characterized in that, When the filter screen is in the filtering posture, the scraper and the filter screen are arranged sequentially along the flow direction of the garbage in the drainage pipe.

3. The waste interception device according to claim 1 or 2, characterized in that, At least two filters are provided, arranged sequentially along the flow direction of the garbage in the drainage pipe, and the interception height of the filters increases sequentially when the filters are in the filtering posture.

4. The waste interception device according to claim 1 or 2, characterized in that, The waste interception device also includes a waste pool, which is located on one side of the drainage pipe and has an opening that communicates with the drainage pipe. The scraper is used to scrape the waste on the filter screen into the waste pool through the opening.

5. The waste interception device according to claim 4, characterized in that, The waste interception device also includes a sealing plate, which covers the opening to isolate the internal space of the drainage pipe from the internal space of the waste pit. The sealing plate can also rotate relative to the drainage pipe to connect the internal space of the drainage pipe with the internal space of the waste pit.

6. The waste interception device according to claim 4, characterized in that, The waste interception device also includes a compression component, which is disposed in the waste pool and is used to compress the waste in the waste pool.

7. A drainage system, characterized in that, The device includes an inlet pipe, a valve, and two sets of waste interception devices as described in any one of claims 1 to 6. The inlet pipe is provided with a first outlet and a second outlet. The drainage pipe of one set of waste interception devices is connected to the inlet pipe through the first outlet, and the drainage pipe of the other set of waste interception devices is connected to the inlet pipe through the second outlet. The valve is movably disposed within the inlet pipe and is used to seal either the first outlet or the second outlet, so that one set of waste interception devices is connected to the inlet pipe for drainage; the other set of waste interception devices is disconnected from the inlet pipe, so that the scraper can scrape the waste intercepted by the filter screen away from the filter screen.

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