Multi-layer filtering gutter inlet device

Abstract

The utility model relates to the technical field of rainwater filtering, in particular to a multi-layer filtering gutter inlet device which comprises an installation cylinder, a plurality of filtering devices and a plurality of filtering devices. The filtering assembly comprises a sliding cylinder arranged on the inner wall of the mounting cylinder in a sliding mode, the sliding cylinder is of an upper opening structure, and a filtering disc, a coarse conical filtering net and a fine conical filtering net are sequentially and fixedly arranged on the inner wall of the sliding cylinder from top to bottom; and the stirring and cleaning assembly is used for stirring sundries intercepted on the coarse conical filter screen and the fine conical filter screen. By arranging the filtering assembly and the stirring and cleaning assembly, when the device filters rainwater on a municipal road surface, a rotating motor can be started, so that a cleaning rod stirs and cleans sundries adsorbed on the surfaces of a coarse conical filter screen and a fine conical filter screen; therefore, the surfaces of the coarse conical filter screen and the fine conical filter screen are exposed, so that rainwater can be smoothly drained, and the drainage efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rainwater filtration, in particular to a multi-layer filtering rainwater inlet device. Background Art

[0002] The stormwater inlet is the entrance for rainwater to enter the city's underground. It is an important facility for collecting ground rainwater and is a channel for sending rainwater directly to the city's river and lake water systems. It is not only the bottleneck for the city's drainage system to collect rainwater runoff, but also the primary channel for urban non-point source pollutants to enter the water environment. Filtering and intercepting devices are usually required at the stormwater inlet to intercept debris in the rainwater.

[0003] In the prior art, a Chinese patent with the announcement number CN213390487U discloses a multi-layer filtering rainwater inlet device, which adopts the scheme of "including a rainwater grate for being arranged directly above the rainwater well, a filter cartridge being provided directly below the rainwater grate, the filter cartridge being arranged in the rainwater well through a support block, the filter cartridge and the rainwater well being connected by a detachable component; a first filter layer for filtering sand and gravel is provided at the upper end of the interior of the filter cartridge, a second filter layer is provided in the middle of the filter cartridge, and a third filter layer is fixedly provided at the bottom of the filter cartridge; the first filter layer and the second filter layer are detachably connected to the filter cartridge via a positioning component". This scheme performs multi-layer filtration on rainwater, which can effectively reduce the problem of sewer pipe blockage.

[0004] However, the above solution still has some shortcomings. For example, in the process of multi-stage filtration of rainwater by this technical solution, as the rainwater continues to flow, the debris intercepted on the surface of the second filter layer and the third filter layer will cover the top of the filter hole, thereby affecting the normal flow of rainwater and reducing the efficiency of municipal drainage. Moreover, when cleaning the intercepted debris, this technical solution needs to disassemble and clean each filter layer one by one, and the cleaning efficiency is low.

[0005] In view of this, the utility model proposes a multi-layer filtering rainwater inlet device. Utility Model Content

[0006] The purpose of the utility model is to provide a multi-layer filtering rainwater inlet device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-layer filtering rainwater inlet device, comprising:

[0008] An installation tube, wherein the installation tube is buried at a municipal rainwater drain outlet;

[0009] A filter assembly for filtering rainwater, comprising a sliding cylinder slidably mounted on the inner wall of a mounting cylinder, the sliding cylinder being an upper-opening structure, the inner wall of the sliding cylinder being fixed with a filter disc, a coarse conical filter screen, and a fine conical filter screen in sequence from top to bottom, the upper surface of the filter disc being provided with a plurality of rectangular drain openings in a circumferential array, and drainage holes being provided on the inner bottom walls of both the sliding cylinder and the mounting cylinder;

[0010] A stirring and cleaning assembly is used to stir debris intercepted on the coarse conical filter and the fine conical filter. The stirring and cleaning assembly includes a rotating motor fixed to the lower surface of the filter disc and a rotating rod fixed to the output end of the rotating motor. The upper surfaces of the coarse conical filter and the fine conical filter are each provided with a rotating hole rotatably connected to the outer surface of the rotating rod. The surface of the rotating rod is fixed with two sets of cleaning rods slidably connected to the surfaces of the coarse conical filter and the fine conical filter respectively.

[0011] The lifting assembly is used to drive the sliding cylinder to move out from the interior of the installation cylinder. The lifting assembly includes a lifting motor fixed on the bottom wall of the installation cylinder to drive the sliding cylinder to move up and down.

[0012] As a preferred technical solution, a first mounting ring and a second mounting ring are fixed to the outer surfaces of the top ends of the mounting cylinder and the sliding cylinder respectively, and an annular groove adapted to the second mounting ring is opened on the upper surface of the mounting cylinder.

[0013] As a preferred technical solution, the outer surface of the sliding cylinder is provided with two arc-shaped discharge ports corresponding to the coarse conical filter screen and the fine conical filter screen respectively.

[0014] As a preferred technical solution, the inner wall of the arc-shaped discharge port is provided with an arc-shaped cavity, and the inner wall of the arc-shaped cavity is slidably provided with an arc-shaped plate for sealing the arc-shaped discharge port, and a pull block is fixed on the surface of the arc-shaped plate.

[0015] As an optimal technical solution, the lifting assembly also includes a threaded column fixed to the output end of the lifting motor, and a connecting ring is fixed to the outer surface of the bottom end of the sliding cylinder, and the upper surface of the connecting ring is provided with a threaded hole threadedly connected to the outer surface of the threaded column.

[0016] As a preferred technical solution, the inner top wall and the inner bottom wall of the installation tube are fixed with a limiting rod, and the upper surface of the connecting ring is provided with a sliding hole that is slidably connected to the outer surface of the limiting rod.

[0017] As a preferred technical solution, a bellows telescopic tube is fixedly provided on the inner bottom wall of the installation cylinder, and the top end of the bellows telescopic tube is fixedly connected to the lower surface of the sliding cylinder.

[0018] Beneficial effects

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. The utility model is provided with a filtering component and a stirring cleaning component, so that when the device filters rainwater on municipal roads, it can start a rotating motor to drive two sets of cleaning rods to rotate on the surfaces of the coarse conical filter mesh and the fine conical filter mesh respectively, so that the cleaning rods can clean up the debris adsorbed on the surfaces of the coarse conical filter mesh and the fine conical filter mesh, so that the surfaces of the coarse conical filter mesh and the fine conical filter mesh are exposed, so that rainwater can be discharged smoothly, thereby improving drainage efficiency.

[0021] 2. The utility model is provided with a lifting component, so that when the intercepted debris needs to be cleaned, the device can drive the cleaning rod to clean the debris, so that the stirred debris can be quickly discharged through the arc-shaped discharge port, thereby achieving the purpose of quickly and automatically cleaning the intercepted debris and effectively improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the installation cylinder of the utility model;

[0026] Figure 4 It is a schematic diagram of the top-sectional structure of the utility model.

[0027] In the picture:

[0028] 100, mounting cylinder; 101, first mounting ring;

[0029] 200, filter assembly; 201, sliding cylinder; 202, filter disc; 203, coarse conical filter screen; 204, fine conical filter screen; 205, drain hole; 206, second mounting ring; 207, bellows expansion tube;

[0030] 300, stirring and cleaning assembly; 301, rotating motor; 302, rotating rod; 303, cleaning rod; 304, arc-shaped cavity; 305, arc-shaped plate;

[0031] 400, lifting assembly; 401, lifting motor; 402, threaded column; 403, connecting ring; 404, limiting rod. DETAILED DESCRIPTION

[0032] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0033] Example 1

[0034] According to the attached Figure 1-4 As shown, the embodiment of the present invention provides a multi-layer filtering rainwater inlet device, comprising:

[0035] The installation tube 100 is buried at the municipal rainwater drainage outlet;

[0036] The filter assembly 200 is used to filter rainwater. The filter assembly 200 includes a sliding cylinder 201 that is slidably arranged on the inner wall of the mounting cylinder 100, and the sliding cylinder 201 is an upper opening structure. The inner wall of the sliding cylinder 201 is fixed with a filter disc 202, a coarse conical filter screen 203 and a fine conical filter screen 204 from top to bottom.

[0037] The upper surface of the filter disc 202 is provided with a plurality of rectangular drain openings in a circumferential array, and the inner bottom walls of the sliding cylinder 201 and the mounting cylinder 100 are both provided with drain holes 205;

[0038] A first mounting ring 101 and a second mounting ring 206 are respectively fixed to the outer surfaces of the top ends of the mounting cylinder 100 and the sliding cylinder 201, and an annular groove adapted to the second mounting ring 206 is opened on the upper surface of the mounting cylinder 100. The setting of the first mounting ring 101 and the second mounting ring 206 facilitates the installation and positioning of the mounting cylinder 100 and the sliding cylinder 201.

[0039] The stirring cleaning assembly 300 is used to stir debris trapped on the coarse conical filter 203 and the fine conical filter 204. The stirring cleaning assembly 300 includes a rotating motor 301 fixed to the lower surface of the filter disc 202, and a rotating rod 302 fixed to the output end of the rotating motor 301. The upper surfaces of the coarse conical filter 203 and the fine conical filter 204 are each provided with a rotating hole rotatably connected to the outer surface of the rotating rod 302. The surface of the rotating rod 302 is fixed with two sets of cleaning rods 303 that are slidably connected to the surfaces of the coarse conical filter 203 and the fine conical filter 204, respectively.

[0040] In this embodiment, by providing the filter assembly 200 and the stirring cleaning assembly 300, the device can first intercept large debris in the rainwater through the filter disc 202, then intercept medium-sized debris in the rainwater through the coarse conical filter mesh 203, and finally intercept small debris in the rainwater through the fine conical filter mesh 204 when filtering rainwater on the municipal road, thereby achieving the purpose of multi-layer filtration of debris in the rainwater, avoiding debris from entering the municipal sewer and causing pipe blockage. At the same time, during the filtration process, In the process, the rotating motor 301 can be started, and the rotation of the rotating motor 301 drives the rotating rod 302 to rotate. The rotation of the rotating rod 302 drives the two sets of cleaning rods 303 to rotate on the surfaces of the coarse conical filter 203 and the fine conical filter 204 respectively, so that the cleaning rods 303 can clean the debris adsorbed on the surfaces of the coarse conical filter 203 and the fine conical filter 204, so that the surfaces of the coarse conical filter 203 and the fine conical filter 204 are exposed, so that rainwater can be discharged smoothly, thereby improving the drainage efficiency.

[0041] Example 2

[0042] Based on the first embodiment, and different from the first embodiment,

[0043] A multi-layer filtering rainwater inlet device further comprising:

[0044] The lifting assembly 400 is used to drive the sliding cylinder 201 to move out from the interior of the installation cylinder 100. The lifting assembly 400 includes a lifting motor 401 fixed to the bottom wall of the installation cylinder 100 for driving the sliding cylinder 201 to move up and down.

[0045] The lifting assembly 400 also includes a threaded column 402 fixed to the output end of the lifting motor 401, and a connecting ring 403 is fixed to the outer surface of the bottom end of the sliding cylinder 201. The upper surface of the connecting ring 403 is provided with a threaded hole that is threadedly connected to the outer surface of the threaded column 402, so that the connecting ring 403 can be automatically lifted and lowered by rotating the threaded column 402.

[0046] A limiting rod 404 is fixed to the inner top wall and the inner bottom wall of the mounting tube 100, and a sliding hole is opened on the upper surface of the connecting ring 403 to be slidably connected to the outer surface of the limiting rod 404. The setting of the limiting rod 404 effectively ensures the stability of the sliding tube 201 when sliding up and down.

[0047] The outer surface of the sliding cylinder 201 is provided with two arc-shaped discharge ports corresponding to the coarse conical filter screen 203 and the fine conical filter screen 204 respectively, so as to facilitate the discharge of the debris intercepted by the coarse conical filter screen 203 and the fine conical filter screen 204 .

[0048] An arc-shaped cavity 304 is provided on the inner wall of the arc-shaped discharge port, and an arc-shaped plate 305 is slidably provided on the inner wall of the arc-shaped cavity 304 for sealing the arc-shaped discharge port. A pull block is fixed on the surface of the arc-shaped plate 305 to facilitate opening and closing of the arc-shaped plate 305.

[0049] A bellows telescopic tube 207 is fixedly provided on the inner bottom wall of the mounting tube 100, and the top end of the bellows telescopic tube 207 is fixedly connected to the lower surface of the sliding tube 201, so that the bottom end of the sliding tube 201 can be connected to the bottom end of the mounting tube 100, while preventing rainwater from entering the interior of the mounting tube 100.

[0050] In this embodiment, by setting up a lifting component 400, the device can start the lifting motor 401 when it is necessary to clean the intercepted debris. The rotation of the lifting motor 401 drives the threaded column 402 to rotate, and the rotation of the threaded column 402 drives the connecting ring 403 and the sliding cylinder 201 to move upward, so that the sliding cylinder 201 is moved out from the inside of the mounting cylinder 100. At this time, the two arc plates 305 are manually opened, and the rotating motor 301 is started to drive the cleaning rod 303 to clean the debris, so that the stirred debris can be quickly discharged through the arc-shaped discharge port, thereby achieving the purpose of quickly and automatically cleaning the intercepted debris, and effectively improving the cleaning efficiency.

[0051] It should be noted that the live equipment involved in the above embodiments are all controlled by the municipal control system. One of the common control methods is to set up a control cabinet at a designated location in the street pavement area to control multiple devices.

[0052] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-layer filtering rainwater inlet device, characterized in that: include: An installation tube (100), wherein the installation tube (100) is buried at a municipal rainwater outlet; A filter assembly (200) is used for filtering rainwater. The filter assembly (200) comprises a sliding cylinder (201) slidably arranged on the inner wall of a mounting cylinder (100). The sliding cylinder (201) is an upper opening structure. A filter disc (202), a coarse conical filter screen (203), and a fine conical filter screen (204) are fixed on the inner wall of the sliding cylinder (201) in order from top to bottom. The upper surface of the filter disc (202) is provided with a plurality of rectangular drain openings in a circumferential array. Drain holes (205) are provided on the inner bottom walls of the sliding cylinder (201) and the mounting cylinder (100). A stirring cleaning assembly (300) is used to stir debris intercepted on the coarse conical filter (203) and the fine conical filter (204). The stirring cleaning assembly (300) comprises a rotating motor (301) fixed on the lower surface of the filter disc (202), and a rotating rod (302) fixed on the output end of the rotating motor (301). The upper surfaces of the coarse conical filter (203) and the fine conical filter (204) are both provided with rotating holes rotatably connected to the outer surface of the rotating rod (302). The surface of the rotating rod (302) is fixed with two groups of cleaning rods (303) respectively slidably connected to the surfaces of the coarse conical filter (203) and the fine conical filter (204). The lifting assembly (400) is used to drive the sliding cylinder (201) to move out from the interior of the installation cylinder (100). The lifting assembly (400) includes a lifting motor (401) fixed on the inner bottom wall of the installation cylinder (100) for driving the sliding cylinder (201) to move up and down.

2. A multi-layer filtering rainwater inlet device according to claim 1, characterized in that: The top outer surfaces of the mounting tube (100) and the sliding tube (201) are respectively fixed with a first mounting ring (101) and a second mounting ring (206), and the upper surface of the mounting tube (100) is provided with an annular groove adapted to the second mounting ring (206).

3. The multi-layer filtering rainwater inlet device according to claim 1, characterized in that: The outer surface of the sliding cylinder (201) is provided with two arc-shaped discharge openings corresponding to the coarse conical filter screen (203) and the fine conical filter screen (204) respectively.

4. A multi-layer filtering rainwater inlet device according to claim 3, characterized in that: The inner wall of the arc-shaped discharge port is provided with an arc-shaped cavity (304), and the inner wall of the arc-shaped cavity (304) is slidably provided with an arc-shaped plate (305) for sealing the arc-shaped discharge port, and a pull block is fixed on the surface of the arc-shaped plate (305).

5. The multi-layer filtering rainwater inlet device according to claim 1, characterized in that: The lifting assembly (400) further comprises a threaded column (402) fixedly mounted on the output end of the lifting motor (401), and a connecting ring (403) is fixedly mounted on the outer surface of the bottom end of the sliding cylinder (201), and a threaded hole is formed on the upper surface of the connecting ring (403) for threaded connection with the outer surface of the threaded column (402).

6. The multi-layer filtering rainwater inlet device according to claim 5, characterized in that: A limiting rod (404) is fixedly provided on the inner top wall and the inner bottom wall of the installation cylinder (100), and a sliding hole is provided on the upper surface of the connecting ring (403) for sliding connection with the outer surface of the limiting rod (404).

7. The multi-layer filtering rainwater inlet device according to claim 1, characterized in that: A bellows telescopic tube (207) is fixedly provided on the inner bottom wall of the installation cylinder (100), and the top end of the bellows telescopic tube (207) is fixedly connected to the lower surface of the sliding cylinder (201).

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