CN111305364A

CN111305364A - Rainwater grate

Info

Publication number: CN111305364A
Application number: CN202010291998.0A
Authority: CN
Inventors: 范秀磊; 刘宇; 张舒; 朱华刚; 赵智磊; 王文杰; 刘加强
Original assignee: Xuzhou University of Technology
Current assignee: Xuzhou University of Technology
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2020-06-19

Abstract

The invention discloses a rainwater grate, and belongs to the technical field of rainwater drainage. The rainwater grate wall body is arranged on the outer side of the periphery of the rainwater grate, a rainwater grate base is embedded in an inner groove of the wall body at the top of the rainwater grate wall body, a filter screen is embedded in an inner groove of the base at the top end of the rainwater grate base, the filter screen comprises an upper filter screen and a lower filter screen, the upper filter screen and the lower filter screen are connected through a tension spring, the filter screen at the bottom of the filter screen gradually shrinks in a stepped manner, and a filter screen groove is formed in the filter screen; the rainwater grate is lapped on the top groove of the filter screen, the rainwater grate is provided with a primary filter screen with high density and a secondary filter screen with low density, the rainwater grate is provided with a plurality of gaskets, a detachable garbage collection box is arranged below the rainwater grate, the detachable garbage collection box is composed of a lifting rod and a non-cover grid box which are movably connected, the lifting rod is connected below the gaskets, and the non-cover grid box is hung above the groove of the filter screen.

Description

Rainwater grate

Technical Field

The invention relates to a drainage device, in particular to a rainwater grate, and belongs to the technical field of rainwater drainage.

Background

With the general rise of annual precipitation and the rapid development of urbanization, the rainwater grate is used as an important sundries filtering facility of a rainwater pipe network and takes on the task of intercepting large-volume sundries in rainwater. However, in many rainy days, the sundries can block the rainwater grate, so that rainwater cannot be drained into a municipal drainage pipe network, and the problems of drainage pipe network blockage, urban drainage system paralysis, waterlogging and the like are caused.

At present, the traditional rainwater grate structure has the problems of difficult cleaning, easy blockage and the like. The existing rainwater grate patents are as follows: patent nos. 201520365637.0 and 201620333442.2, and the like. The above patents are mainly innovative in terms of structure, appearance, etc., but are less concerned in terms of improving drainage efficiency, disposal of clogging, etc. Still like patent No. 201420758361.8 discloses an anti-blocking formula rainwater grate, the device's key feature is can carry out the storage and the recovery of debris, but because the separation of sluicing median strip, the device can produce very big influence to the infiltration of holding of rainwater and purification ability under the rainstorm condition. Based on the background, the rainwater grate is provided, and the problems are effectively solved.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the rainwater grate which can improve the filtering and discharging speed of the drainage pipeline to rainwater and effectively relieve the problems of blockage of a drainage pipe network, paralysis and waterlogging of an urban drainage system and the like.

The invention is realized by the following technical scheme: a rainwater grate comprises a rainwater grate wall body, a rainwater grate base and a rainwater grate, wherein the rainwater grate wall body is arranged on the outer side of the periphery of the rainwater grate, a rainwater grate base is embedded in an inner groove of the top wall body of the rainwater grate wall body, a filter screen is embedded in an inner groove of the top base of the rainwater grate base, the filter screen comprises an upper filter screen and a lower filter screen, the upper filter screen and the lower filter screen are connected through a tension spring, the filter screen at the bottom of the filter screen is gradually contracted in a stepped manner, and a filter screen groove is formed in the filter screen at the bottom; the rainwater grate is in lap joint with the inner groove in the top of the filter screen, a primary filter screen with high density and a secondary filter screen with low density are arranged on the rainwater grate, a plurality of gaskets are arranged on the rainwater grate, a detachable garbage collection box is arranged below the rainwater grate and consists of a lifting rod and an uncovered grid box which are movably connected, the lifting rod is connected below the gaskets, and the uncovered grid box is suspended above the grooves of the filter screen.

Furthermore, the rainwater grate is formed by mixing resin, inorganic filler and reinforcing steel bars.

Furthermore, the four gaskets are equal in size and are distributed in the middle of the rainwater grate in a quadrilateral shape.

Furthermore, the filter screen is composed of a plurality of groups of parallel metal grid bars and a frame.

Furthermore, the extension spring is positioned in the center of four sides of the filter screen.

Further, the bottom filter screen is provided with grids with different densities, and the grid density is gradually reduced from high to low.

Further, the filter screen groove is arranged in the middle of the bottom filter screen.

Furthermore, the lifting rod is a stud-shaped steel bar and is in threaded connection with the rainwater grate and the uncovered grid box.

The invention has the beneficial effects that: the invention introduces a rainwater grate, which is provided with a primary filter screen and a secondary filter screen, so that the phenomenon that the surface of the rainwater grate is blocked is effectively reduced; the filter screen and the detachable garbage collection box are arranged below the rainwater grate, so that the filtering and discharging speed of rainwater is further improved, and the problems of blockage of a drainage pipe network, paralysis of a municipal drainage system, waterlogging and the like are effectively relieved.

Drawings

The invention is further illustrated below with reference to the figures and examples.

FIG. 1 is a sectional view of the entire rain water grate of the present invention

FIG. 2 is a plan view of the novel rain water grate of the present invention

FIG. 3 is a top view of the vertically separated ladder-shaped physical grid filter screen of the present invention

FIG. 4 is a cross-sectional view of the collapsible refuse collection tank of the present invention

FIG. 5 is a top view of the collapsible refuse collection tank of the present invention

FIG. 6 is a cross-sectional view of an extension spring assembly of the present invention

In the figure, 1 part of a rainwater grate wall body, 1-1 part of a wall body inner groove, 2 parts of a rainwater grate base, 2-1 part of a base inner groove, 3 parts of a rainwater grate, 3-1 part of a gasket, 3-2 parts of a primary filter screen, 3-3 parts of a secondary filter screen, 4 parts of a filter screen, 4-1 part of an upper filter screen, 4-2 parts of a lower filter screen, 4-3 parts of a tension spring, 4-4 parts of a bottom filter screen, 4-5 parts of a filter screen groove, 4-6 parts of a filter screen top inner groove, 5 parts of a detachable garbage collection pool, 5-1 part of a lifting rod, 5-2 parts of an uncovered grating box, 5-3 parts of a thread.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the specification, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.

Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail but are intended to be part of the specification as appropriate.

The rainwater grate as shown in figures 1-6 mainly comprises a rainwater grate 3, a filter screen 4 and a detachable garbage collection box 5. The rainwater grate 3 is made by mixing resin, inorganic filler and reinforcing steel bars, a primary filter screen 3-2 with higher density and a secondary filter screen 3-3 with lower density are arranged on the rainwater grate 3, and when the rainfall is lower, rainwater flows in through the primary filter screen 3-2; when the rainfall is large, the rainwater is filtered by the first-stage filter screen 3-2 and the second-stage filter screen 3-3 and flows into the water channel pipe network. Because the primary filter screen 3-2 and the secondary filter screen 3-3 have different densities, the rainwater grate can be effectively prevented from being blocked in rainy days, and the effect of rapid drainage is achieved. The rainwater grate 3 is provided with four gaskets 3-1 with the same size, and the gaskets 3-1 are distributed in the middle of the rainwater grate 3 in a quadrilateral shape.

The rainwater grate wall body 1 is arranged on the outer side of the periphery of the rainwater grate 3, an inner wall body groove 1-1 is dug in the top of the rainwater grate wall body 1, and a rainwater grate base 2 is embedded in the inner wall body groove 1-1. The top end of the rain grate base 2 is provided with a base inner groove 2-1, a filter screen 4 is embedded in the base inner groove 2-1, the filter screen 4 is composed of a plurality of groups of parallel metal bars and a frame, the filter screen 4 comprises an upper section filter screen 4-1 and a lower section filter screen 4-2, the upper section filter screen 4-1 and the lower section filter screen 4-2 are in butt joint through a tension spring 4-3, the bottom filter screen 4-4 of the filter screen 4 gradually shrinks in a step mode, and a filter screen groove 4-5 is formed in the middle of the bottom filter screen 4-4. Under normal conditions, the extension spring 4-3 is in an original long state, when the rainfall is small, rainwater flows into the filter screen 4 through the primary filter screen 3-2 of the rainwater grate 3 and is filtered by the stepped grating of the bottom filter screen 4-4, and blockages such as leaves, garbage and the like can be effectively intercepted. When the rainfall is large, rainwater flows into the filter screen 4 after being filtered by the first-stage filter screen 3-2 and the second-stage filter screen 3-3 of the rainwater grate, the filter screen 4 is provided with the extension spring 4-3, when the rainwater generates certain pressure on the bottom filter screen 4-4, the spring is extended, rainwater in the filter screen 4 is discharged through the peripheral openings to enhance the filtering efficiency of the rainwater, and plugs can be deposited on the filter screen 4 due to the action of gravity, so that the water passing amount and the collection efficiency of the plugs are increased.

The rainwater grate 3 is in lap joint with the filter screen 4, the detachable garbage collection box 5 is arranged below the rainwater grate 3, the detachable garbage collection box 5 is formed by movably connecting four lifting rods 5-1 and a uncovered grid box 5-2 through threads, the lifting rods 5-1 are specially-made steel bars and are movably connected below the gasket 3-1 through threads, and the uncovered grid box 5-2 is hung above the groove 4-5 of the filter screen. The small-sized blockage flows onto the filter screen 4 after passing through the rainwater grate under the action of rainwater, and after a period of time, the blockage is retained in the uncovered grid box 5-2 under the influence of the scouring action and the gravity action of the rainwater, so that a cleaner can conveniently recover and treat the blockage.

The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rainwater grate, its characterized in that: comprises a rainwater grate wall body (1), a rainwater grate base (2) and a rainwater grate (3), the rainwater grate wall body (1) is arranged on the outer side of the periphery of the rainwater grate (3), an inner groove (1-1) in the top wall body of the rainwater grate wall body (1) is embedded into a rainwater grate base (2), an inner groove (2-1) of the base at the top end of the rainwater grate base (2) is embedded into a filter screen (4), the filter screen (4) comprises an upper section filter screen (4-1) and a lower section filter screen (4-2), the upper section filter screen (4-1) and the lower section filter screen (4-2) are connected through an extension spring (4-3), the bottom filter screen (4-4) of the filter screen (4) gradually shrinks in a step mode, and the bottom filter screen (4-4) is provided with a filter screen groove (4-5); the rainwater grate (3) is in lap joint with the inner grooves (4-6) in the top of the filter screen, a primary filter screen (3-2) with high density and a secondary filter screen (3-3) with low density are arranged on the rainwater grate (3), a plurality of gaskets (3-1) are arranged on the rainwater grate (3), a detachable garbage collection box (5) is arranged below the rainwater grate (3), the detachable garbage collection box (5) is formed by movably connecting a lifting rod (5-1) and a uncovered grid box (5-2), the lifting rod (5-1) is connected below the gaskets (3-1), and the uncovered grid box (5-2) is suspended above the grooves (4-5) of the filter screen.

2. A rainwater grate as claimed in claim 1, wherein: the rainwater grate (3) is formed by mixing resin, inorganic filler and reinforcing steel bars.

3. A rainwater grate as claimed in claim 1, wherein: the four gaskets (3-1) are equal in size and are distributed in the middle of the rainwater grate (3) in a quadrilateral shape.

4. A rainwater grate as claimed in claim 1, wherein: the filter screen (4) is composed of a plurality of groups of parallel metal grid bars and a frame.

5. A rainwater grate as claimed in claim 1, wherein: the extension springs (4-3) are positioned in the center of the four sides of the filter screen (4).

6. A rainwater grate as claimed in claim 1, wherein: the bottom filter screen (4-4) is provided with grids with different densities, and the density of the grids is gradually reduced from high to low.

7. A rainwater grate as claimed in claim 1, wherein: the filter screen groove (4-5) is arranged in the middle of the bottom filter screen (4-4).

8. A rainwater grate as claimed in claim 1, wherein: the lifting rod (5-1) is a stud-shaped steel bar and is connected with the rainwater grate (3) and the uncovered grid box (5-2) through threads (5-3).