A kind of urban drainage filtering and impurity removal structure

Abstract

The present invention discloses a structure for filtering and removing impurities from urban drainage, and relates to the technical field of drainage structures, which comprises a well body, a water inlet is arranged inside the well body, an outer filter screen is arranged at the upper part of the water inlet, a well cover is arranged at the lower end of the outer filter screen, a flow limiting component is arranged at the lower end of the well cover, the flow limiting component is arranged at the middle part of the well body, and a sand filter screen is arranged at the lower end of the flow limiting component. The present invention forms a first garbage interception through the outer filter screen, a second interception through the flow limiting component, and a third sediment interception through the sand filter screen, so as to intercept rainwater and slag, control the drainage flow, and achieve the effect of improving drainage.

Description

Technical Field

[0001] The invention relates to the technical field of drainage structures, and in particular to a city drainage filtering and impurity removal structure. Background Art

[0002] When it rains, rainwater will wash soil and some domestic garbage into the city's drainage outlets. When the amount of rainwater is small, it can carry less soil and garbage, but when the rainfall is too heavy, the garbage carried by the rainwater will increase and block the drainage outlet, causing rainwater retention.

[0003] In view of the above-mentioned related technical problems, it is necessary to use a drainage device with a filtration system to filter the generated rainwater and accelerate the circulation. Summary of the invention

[0004] Based on this, the present invention proposes a city drainage filtering and impurity removal structure, which is used to solve the problem of excessive filter residues in city drainage and blockage in the prior art.

[0005] The present invention discloses an urban drainage filtering and impurity removal structure, comprising a well body, wherein a water inlet is arranged inside the well body, an outer filter screen is arranged on the upper part of the water inlet, a well cover is arranged at the lower end of the outer filter screen, a flow limiting component is arranged at the lower end of the well cover, the flow limiting component is arranged in the middle part of the well body, and a sand filter screen is arranged at the lower end of the flow limiting component.

[0006] Furthermore, a water channel is provided in the well body and communicates with the water inlet. The water channel is provided with an expansion cavity below the water inlet, and a chute cavity is provided at the upper end of the expansion cavity. The present invention can be used to place a flow limiting component for filtering and removing impurities through the water channel provided in the well body, thereby further solving the problem of blockage caused by excessive filter residue in urban drainage.

[0007] Furthermore, the outer filter screen is fixedly mounted on the drain outlet, and the outer filter screen is provided with coarse filter holes. The present invention can remove filter residues and debris mixed in rainwater by setting the outer filter screen on the drain outlet and utilizing the coarse filter holes on the outer filter screen, thereby preventing the filter residues and debris mixed in rainwater from entering the water channel provided in the well body and communicating with the water inlet, thereby forming a first garbage interception structure, which helps to solve the problem of blockage caused by excessive filter residues in urban drainage.

[0008] Furthermore, the distance between the manhole cover and the outer filter is 1-20 cm, and a guide groove is provided on the manhole cover. The present invention utilizes the distance between the manhole cover and the outer filter to form a certain slow flow space to prevent the outer filter from being too close to the manhole cover and causing blockage; and the filtered rainwater is discharged into the waterway through the guide groove on the manhole cover.

[0009] Furthermore, the flow limiting assembly includes a left flow limiting plate and a right flow limiting plate, wherein a long connecting rod is provided at the right end of the left flow limiting plate, and a lower rack is fixedly provided on the long connecting rod; and a short connecting rod is provided at the left end of the right flow limiting plate, and an upper rack is fixedly provided on the short connecting rod. The present invention enables the left flow limiting plate to move under the traction of the lower rack by fixedly connecting the long connecting rod of the left flow limiting plate with the lower rack; and enables the right flow limiting plate to move under the traction of the upper rack by fixedly connecting the short connecting rod of the right flow limiting plate with the upper rack; and utilizes the mutual cooperation of the left flow limiting plate and the right flow limiting plate in the flow limiting assembly to adjust the amount of rainwater discharged in the water channel, which helps to prevent the outer filter screen and the sand filter screen from being damaged by the impact due to excessive amount of rainwater discharged in the water channel, thereby achieving the purpose of adjusting the amount of rainwater discharged in the water channel to protect the outer filter screen and the sand filter screen.

[0010] Furthermore, the left and right flow restricting plates are both arranged in the well body in the chute cavity. The present invention prevents the movement direction of the left and right flow restricting plates from deviating by arranging the left and right flow restricting plates in the chute cavity, thus playing a positioning and guiding role.

[0011] Furthermore, a slide plate is provided in the expansion cavity, and a slide groove is provided on the slide plate for the long connecting rod and the short connecting rod to slide; the right end tooth surface of the upper rack is movably engaged with gear I, and the right end surface of the lower rack is movably engaged with gear II. The slide groove provided by the slide plate of the present invention is used to limit the sliding direction of the long connecting rod and the short connecting rod, thereby further preventing the movement direction of the left limiting plate and the right limiting plate from deviating, and playing a positioning and guiding role; and the right end tooth surface of the upper rack is movably engaged with gear I, and the right end surface of the lower rack is movably engaged with gear II, so that the left limiting plate moves along the direction of the slide groove provided on the slide plate under the traction of the lower rack, and the right limiting plate moves along the direction of the slide groove provided on the slide plate under the traction of the upper rack.

[0012] Furthermore, the rear side of the gear I meshes with the front side of the gear II, a gear III is installed on the right side of the gear I, the right side of the gear I meshes with the left side of the gear III, and a fixed shaft III is provided in the middle of the lower end of the gear III, an arm-increasing disk is fixed on the upper end of the gear III, and a handle is fixed on the upper end of the arm-increasing disk. The present invention drives the gear I and the gear II to move through the gear III, so that the left limiting plate and the right limiting plate move along the direction of the slide groove set on the slide plate under the action of the gear III.

[0013] Furthermore, the sand filter net is arranged at the lower end of the expansion cavity and is fixedly connected to the inner side of the water inlet, and the sand filter net is provided with fine filtering holes. The present invention further intercepts small dirt such as silt through the fine filtering holes of the sand filter net to avoid the accumulation of silt, forming a third silt interception, which helps to further solve the problem of blockage caused by excessive filter residue in urban drainage.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention forms the first garbage interception through the outer filter screen, the second interception through the flow limiting component and the third sediment interception through the sand filter screen, thereby realizing the interception of rainwater and debris, controlling the drainage flow and achieving the effect of improving drainage; when a large amount of rainwater flows into the wellhead body, the outer filter screen intercepts the large garbage, dead branches and the like carried by the outer filter screen to prevent the garbage from flowing into the drain outlet and causing blockage. When the rainfall is too heavy, the load on the drain outlet increases, and the arm-raising plate connected by the rotating handle drives the gear III to rotate, thereby driving the gear I and the gear II to rotate, and then driving the upper rack and the lower rack to move, so that the left flow limiting plate and the right flow limiting plate hidden in the chute cavity are merged and close to reduce the size of the guide trough, limit the inflow of rainwater, reduce the inflow impact speed of rainwater and achieve the effect of better intercepting larger garbage. At the same time, the sand filter screen at the lower end further intercepts small dirt such as sediment to avoid the accumulation of sediment.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 A schematic diagram of various components of a city drainage filtering and impurity removal structure according to an embodiment of the present invention;

[0018] Figure 2 A schematic diagram of a flow limiting component of a city drainage filtering and impurity removal structure according to an embodiment of the present invention;

[0019] Figure 3 A schematic diagram of a city drainage filtering and impurity removal structure according to an embodiment of the present invention;

[0020] Figure 4 It is a cross-sectional view of the urban drainage filtering and impurity removal structure according to an embodiment of the present invention.

[0021] Reference numerals:

[0022] Well body 1, water inlet 11, expansion chamber 12, chute chamber 13, water flow channel 14, outer filter screen 2, coarse filter hole 21, well cover plate 3, guide groove 31, flow limiting component 4, left flow limiting plate 41, right flow limiting plate 42, long connecting rod 43, short connecting rod 44, upper rack 45, lower rack 46, gear I51, gear II52, slide plate 53, shaft I54, shaft II55, shaft III56, gear III57, arm increase plate 58, handle 59, sand filter screen 6, fine filter hole 61. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In the description of the present invention, "several" means one or more, "more" means two or more, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0027] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 In some embodiments of the present invention, a city drainage filtering and impurity removal structure includes a well body 1, a water inlet 11 is provided inside the well body 1, an outer filter screen 2 is provided on the upper part of the water inlet 11, a well cover plate 3 is provided at the lower end of the outer filter screen 2, a flow limiting component 4 is provided at the lower end of the well cover plate 3, the flow limiting component 4 is arranged in the middle of the wellhead body 1, and a sand filter screen 6 is provided at the lower end of the flow limiting component 4.

[0028] Furthermore, a water channel 14 is provided in the well body 1 and is connected to the water inlet. The water channel 14 is provided with an expansion chamber 12 below the water inlet 11, and a chute chamber 13 is provided at the upper end of the expansion chamber 12. The present invention can be used to place a flow-limiting component for filtering and removing impurities through the water channel provided in the well body, thereby further solving the problem of blockage caused by excessive filter residue in urban drainage. A through circular hole is provided at the upper end of the well body 1 and located on the right side. The through circular hole penetrates to the right end of the expansion chamber 12, and the right end space of the expansion chamber 12 is larger than the left end space, and can accommodate some transmission mechanisms of the flow-limiting component.

[0029] Furthermore, the outer filter screen 2 is installed and fixed on the drain outlet 11, and the outer filter screen 2 is provided with a coarse filter hole 21. The present invention can remove the filter residues and debris mixed in the rainwater by setting the outer filter screen 2 on the water inlet 11 and utilizing the coarse filter holes 21 on the outer filter screen 2, and prevent the filter residues and debris mixed in the rainwater from entering the water channel provided in the well body 1 that is connected to the drain outlet 11, thereby forming a first garbage interception structure, which helps to solve the problem of excessive filter residues and blockage in urban drainage. The mesh of the outer filter screen 2 is fixed in the drain outlet 11 by bolts, which is convenient for the disassembly and installation of the outer filter screen 2. The outer filter screen 2 is made of stainless steel, which can ensure that it has strong corrosion resistance.

[0030] Furthermore, the distance between the manhole cover 3 and the outer filter screen 2 is 1-20cm, and a guide groove 31 is provided on the manhole cover 3. The present invention utilizes the distance between the manhole cover 3 and the outer filter screen 2 to form a certain slow flow space to prevent the outer filter screen 2 and the manhole cover 3 from being too close to each other and causing blockage; and the filtered rainwater is discharged into the waterway through the guide groove 31 on the manhole cover 3. The upper end of the water flow channel 14 is provided with a protruding edge position, and the distance between the protruding edge position and the outer filter screen 2 is 1-20cm. The manhole cover 3 is limited and fixed by the protruding edge position, which is convenient for the disassembly and installation of the manhole cover 3. The manhole cover 3 is made of cast iron, which can effectively ensure its corresponding strength.

[0031] Furthermore, the flow limiting assembly 4 includes a left flow limiting plate 41 and a right flow limiting plate 42. The left flow limiting plate 41 has a long connecting rod 43 at its right end, on which a lower rack 46 is fixedly disposed. The right flow limiting plate 42 has a short connecting rod 44 at its left end, on which an upper rack 45 is fixedly disposed. The present invention enables the left limiting plate 41 to move under the traction of the lower rack 46 by fixedly connecting the long connecting rod 43 of the left limiting plate 41 with the lower rack 46; enables the right limiting plate 42 to move under the traction of the upper rack 45 by fixedly connecting the short connecting rod 44 of the right limiting plate 42 with the upper rack 45; utilizes the mutual coordination of the left limiting plate 41 and the right limiting plate 42 in the limiting assembly 4 to adjust the rainwater discharge in the water channel, which helps to prevent the outer filter screen 2 and the sand filter screen 6 from being damaged by the impact due to excessive rainwater discharge in the water channel, thereby achieving the purpose of adjusting the rainwater discharge in the water channel to protect the outer filter screen 2 and the sand filter screen 6.

[0032] Furthermore, the left restrictor plate 41 and the right restrictor plate 42 are both arranged in the chute cavity 13 of the well body 1. The present invention prevents the movement direction of the left restrictor plate 41 and the right restrictor plate 42 from being offset by arranging the left restrictor plate 41 and the right restrictor plate 42 in the chute cavity 13, thereby playing a positioning and guiding role. The left restrictor plate 41 and the right restrictor plate 42 can move in the opposite direction in the chute cavity 13, shielding and opening the guide groove 31 of the well cover plate 3, so as to reduce the area of ​​the guide groove 31 and realize the function of limiting the flow of rainwater.

[0033] Further, a slide plate 53 is provided in the expansion cavity 12, and a slide groove for sliding the long connecting rod 43 and the short connecting rod 44 is provided on the slide plate 53; the right end tooth surface of the upper rack 45 is movably engaged with the gear I 51, and the right end surface of the lower rack 46 is movably engaged with the gear II 52. The slide groove provided by the slide plate 53 of the present invention is used to limit the sliding direction of the long connecting rod 43 and the short connecting rod 44, thereby further preventing the movement direction of the left limiting plate 41 and the right limiting plate 42 from deviating, and playing a positioning and guiding role; and the right end tooth surface of the upper rack 45 is movably engaged with the gear I 51, and the right end surface of the lower rack 46 is movably engaged with the gear II 52, so that the left limiting plate 41 moves along the direction of the slide groove provided on the slide plate 53 under the traction of the lower rack 46, and the right limiting plate 42 moves along the direction of the slide groove provided on the slide plate 53 under the traction of the upper rack 45.

[0034] Further, the rear side of the gear I 51 meshes with the front side of the gear II 52, a gear III 57 is installed on the right side of the gear I 51, the right side of the gear I 51 meshes with the left side of the gear III 57, and a fixed shaft III 56 is provided in the middle of the lower end of the gear III 57, an arm-increasing plate 58 is fixedly provided on the upper end of the gear III 57, and a handle 59 is fixedly provided on the upper end of the arm-increasing plate 58. The present invention drives the gear I 51 and the gear II 52 to move through the gear III 57, so that the left flow limiting plate 41 and the right flow limiting plate 42 move along the direction of the slide groove set on the slide plate 53 under the action of the gear III 57. During the rotation of the handle 59, the gear III 57 is driven to rotate and then the gear I 51 is driven to rotate in the opposite direction. The gear I 51 then drives the gear II 52. During the opposite rotation of the gear II 52, the gear I 51 drives the lower rack 46 to move, the gear II 52 drives the upper rack 45 to move, and then the upper rack 45 drives the right limit plate 42 to move, and the lower rack 46 drives the left limit plate 41 to move, thereby controlling the opening and closing of the limiting plate 4.

[0035] Furthermore, the sand filter screen 6 is arranged at the lower end of the expansion cavity 12 and is fixedly connected to the inner side of the water inlet 11, and a fine filter hole 61 is arranged on the sand filter screen 6. The present invention further intercepts small dirt such as silt through the fine filter holes 61 of the sand filter screen to avoid the accumulation of silt, forming a third silt interception, which helps to further solve the problem of blockage caused by excessive filter residue in urban drainage. When the rainwater passes through the sand filter screen 6 after the first interception, the fine silt it carries that cannot be intercepted by the first interception formed by the outer filter screen 2 will be intercepted by the sand filter screen 6, thereby preventing the silt from accumulating in the sewer and causing blockage of the sewer.

[0036] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A structure for filtering and removing impurities from urban drainage, characterized in that: include: A well body, wherein a water inlet is provided inside the well body, an outer filter screen is provided at the upper part of the water inlet, a well cover is provided at the lower end of the outer filter screen, a flow limiting component is provided at the lower end of the well cover, the flow limiting component is arranged in the middle part of the well body, and a sand filter screen is provided at the lower end of the flow limiting component; The well body is provided with a water channel which is connected with the water inlet, the water channel is provided with an expansion cavity below the water inlet, and the upper end of the expansion cavity is provided with a chute cavity; The outer filter screen is fixedly mounted on the water inlet, and the outer filter screen is provided with coarse filter holes; The current limiting assembly comprises a left current limiting plate and a right current limiting plate, a long connecting rod is provided at the right end of the left current limiting plate, a lower rack is fixedly provided on the long connecting rod; a short connecting rod is provided at the left end of the right current limiting plate, an upper rack is fixedly provided on the short connecting rod; the left current limiting plate and the right current limiting plate are both arranged in the slide groove cavity of the well body; a slide plate is provided in the expansion cavity, and a slide groove for sliding the long connecting rod and the short connecting rod is provided on the slide plate; the right end tooth surface of the upper rack is movably meshed with gear I, and the right end surface of the lower rack is movably meshed with gear II; the rear side of the gear I is meshed with the front side of the gear II, a gear III is installed on the right side of the gear I, the right side of the gear I is meshed with the left side of the gear III, and a fixed shaft III is provided in the middle part of the lower end of the gear III, an arm-increasing disk is fixedly provided at the upper end of the gear III, and a handle is fixedly provided at the upper end of the arm-increasing disk; The sand filter net is arranged at the lower end of the expansion cavity and is fixedly connected to the inner side surface of the water inlet, and the sand filter net is provided with fine filtering holes; The working principle of the drainage, filtering and impurity removal structure is that the outer filter net forms the first garbage interception, the flow limiting component forms the second interception and the sand filter net forms the third sediment interception, so as to intercept rainwater and intercept debris, control the drainage flow and achieve the effect of improving drainage; when a large amount of rainwater flows into the wellhead body, the outer filter net intercepts the large garbage, dead branches, etc. carried by it to prevent the garbage from flowing into the drain outlet and causing blockage. When the rainfall is too heavy, the load on the drain outlet increases, and the arm plate connected by the rotating handle drives the gear III to rotate, thereby driving the gear I and gear II to rotate, and then driving the upper and lower racks to move, so that the left and right flow limiting plates hidden in the chute cavity are merged and close to reduce the size of the guide groove, limit the inflow of rainwater, reduce the inflow impact speed of rainwater and achieve the effect of better intercepting larger garbage. At the same time, the sand filter net at the lower end further intercepts small dirt such as sediment to avoid the accumulation of sediment.

2. The urban drainage filtering and impurity removal structure according to claim 1 is characterized in that: The distance between the manhole cover and the outer filter screen is 1-20 cm, and a guide groove is provided on the manhole cover.

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