Rainwater outlet protection device convenient for cleaning sundries

Abstract

The utility model relates to the field of drainage devices, in particular to a rainwater drainage port protection device convenient for cleaning sundries, which comprises a mounting pipe and the like. According to the rainwater drainage port protection device convenient for cleaning the sundries, the cut-off groove structures are arranged on the lattice bars of the interception net, and the blades which are matched with the cut-off groove structures to cut off the thin-strip-shaped sundries are further arranged on the interception net. Maintenance personnel can drive the blade to cut off the thin-strip-shaped sundries wound on the intercepting net only by treading the pressing plate with feet regularly, and meanwhile the cut-off thin-strip-shaped sundries can be washed away downwards along the mounting pipe through rainwater collected in the pressing plate. The technical problem that the maintenance difficulty is increased due to the fact that thin-strip-shaped sundries wound on a filter screen of an accumulated water drainage port for draining rainwater are difficult to clean is solved.

Description

Technical Field

[0001] This utility model relates to the field of drainage devices, and in particular to a protective device for rainwater drain outlets that facilitates the cleaning of debris. Background Technology

[0002] Protective devices for rainwater drainage outlets are facilities used to protect rainwater drainage systems from sediment, garbage, and other pollutants. Their main function is to intercept and filter runoff entering the drainage system, reduce pollution to the downstream environment, and ensure the normal operation of the drainage system. Usually, a filter screen is installed at the inlet of the rainwater drainage outlet, which can intercept a large amount of debris. However, when some fine strands of debris, such as hair or thread, flow through the filter screen, these fine strands of debris not only easily get tangled on the filter screen and cannot pass through the drainage outlet with the water, but also it is difficult for maintenance personnel to clean these fine strands of debris tangled on the filter screen, increasing the difficulty of maintaining the rainwater drainage outlet. Utility Model Content

[0003] To overcome the drawback of the difficulty in cleaning fine debris entangled in the filter screen of rainwater drainage outlets, which increases maintenance difficulty, this utility model provides a rainwater drainage outlet protection device that facilitates the cleaning of debris.

[0004] The technical solution of this utility model is: a rainwater drain outlet protection device that facilitates the cleaning of debris, comprising an installation pipe, an intercepting net, grid strips, a pressure plate, an external pressure spring, a fixing plate, and cutting blades; the intercepting net is fixedly connected to the installation pipe, and the intercepting net is composed of a filter grid structure made up of several grid strips; the grid strips of the intercepting net have cutting groove structures; the pressure plate is slidably connected to the intercepting net; the pressure plate and the intercepting net are jointly fixedly connected to an external pressure spring; the fixing plate is connected to the inner cavity structure of the pressure plate; the fixing plate is fixedly connected to cutting blades that correspond in number and position to the cutting groove structures of the grid strips.

[0005] As a further preferred option, the pressure plate has an inlet hole structure that connects to the inner cavity structure; the fixing plate has several outlet holes that connect to the inner cavity structure.

[0006] As a further preferred option, the liquid outlet through-hole structure is closely attached to the corresponding cutting blade.

[0007] As a further preferred option, the fixed plate is slidably connected to the pressure plate, and an internal pressure spring is fixedly connected between the pressure plate and the fixed plate.

[0008] As a further preferred option, a sealing plug is fixed to the pressure plate, which corresponds to the number and position of the liquid outlet holes.

[0009] As a further preferred option, an annular collection tray for collecting large-volume debris is placed on the installation tube.

[0010] As a further preferred option, a pull rod is fixed to the annular collection tray.

[0011] This utility model has the following advantages: The rainwater drain outlet protection device described in this utility model is easy to clean. It has a cutting groove structure on the grid of the interception net, and a blade that works with the cutting groove structure to cut thin strip-shaped debris on the interception net. Maintenance personnel only need to periodically step on the pressure plate to drive the blade to cut the thin strip-shaped debris wrapped around the interception net. At the same time, the rainwater collected in the pressure plate can also wash away the cut thin strip-shaped debris along the installation pipe. This solves the technical problem that it is difficult to clean the thin strip-shaped debris wrapped around the filter screen of the rainwater drain outlet, which increases the maintenance difficulty. Attached Figure Description

[0012] Figure 1 The present invention is illustrated in a perspective view according to an embodiment.

[0013] Figure 2 This is a three-dimensional cross-sectional view of the pressure plate structure of the present invention according to an embodiment;

[0014] Figure 3 This is a perspective structural diagram illustrating the cutting blade of the present invention according to an embodiment;

[0015] Figure 4 This is a partial three-dimensional cross-sectional view of the fixing plate of the present invention, according to an embodiment.

[0016] Reference numerals: 1-Installation pipe, 2-Interception net, 201-Cutting groove structure, 21-Grid strip, 3-Pressure plate, 301-Inner cavity structure, 302-Liquid inlet structure, 31-Outer pressure spring, 4-Fixing plate, 401-Liquid outlet through hole structure, 41-Inner pressure spring, 5-Cut blade, 6-Sealing plug, 7-Annular collection tray, 71-Pull rod. Detailed Implementation

[0017] The present invention will be further described below with reference to specific embodiments. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "setting," "installing," "connecting," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0018] Example

[0019] This embodiment provides a rainwater drain outlet protection device that facilitates the cleaning of debris, such as... Figures 1-4As shown, it includes an installation tube 1, a filter screen 2, grid strips 21, a pressure plate 3, an external pressure spring 31, a fixing plate 4, and a cutting blade 5. The filter screen 2 is detachably fixed to the installation tube 1, and the filter screen 2 is composed of a filter screen structure consisting of several grid strips 21. Each grid strip 21 of the filter screen 2 has a cutting groove structure 201. The pressure plate 3 is slidably connected to the filter screen 2. An external pressure spring 31 is fixedly connected between the pressure plate 3 and the filter screen 2. An inner cavity structure 301 is formed inside the pressure plate 3. The fixing plate 4 is connected to the inner cavity structure 301 of the pressure plate 3. The fixing plate 4 has cutting blades 5 that correspond in number and position to the cutting groove structures 201 of the grid strips 21.

[0020] After the installation pipe 1 is installed on the rainwater drain outlet, during rainy weather, the accumulated rainwater passes through the interception net 2 and flows downward along the installation pipe 1. At the same time, some thin strip-shaped debris in the accumulated water will become entangled on the interception net 2. At this time, the maintenance personnel only need to periodically step on the pressure plate 3 to drive the external pressure spring 31 to compress downward. The pressure plate 3 will then drive the cutting blade 5 to cut downward into the cutting groove structure 201 of the corresponding grid 21 of the interception net 2. This allows the cutting blade 5 and the corresponding cutting groove structure 201 to cut the thin strip-shaped debris entangled on the interception net 2. Subsequently, the cut thin strip-shaped debris will pass through the interception net 2 with the accumulated water and flow downward along the installation pipe 1, completing the cleaning of the thin strip-shaped debris on the interception net 2.

[0021] like Figures 2-4 As shown, the pressure plate 3 of this embodiment has a plurality of liquid inlet holes 302 that connect to the inner cavity structure 301; the fixing plate 4 has a plurality of liquid outlet holes 401 that connect to the inner cavity structure 301; each liquid outlet hole 401 is tightly attached to the outer surface of the corresponding cutting blade 5; the fixing plate 4 is slidably connected to the pressure plate 3, and the pressure plate 3 and the fixing plate 4 are jointly fixedly connected to an inner pressure spring 41; the pressure plate 3 is fixedly connected to a sealing plug 6 that corresponds to the number and position of the liquid outlet holes 401, and the sealing plug 6 is initially in a state of being tightly plugged into the corresponding liquid outlet hole structure 401.

[0022] During rainy weather, rainwater continuously accumulates in the inner cavity structure 301 of the pressure plate 3 through the liquid inlet structure 302, allowing the inner cavity structure 301 of the pressure plate 3 to store rainwater.

[0023] After the rainy weather ends, as maintenance personnel step on the pressure plate 3 to drive the cutting blade 5 to cut the thin strips of debris on the interception net 2, when the cutting blade 5 and the fixing plate 4 are blocked by the interception net 2 and cannot continue to move downward, the pressure plate 3 continues to be stepped on, driving the inner pressure spring 41 to compress downward. At the same time, the pressure plate 3 drives the sealing plug 6 to move downward away from the corresponding liquid outlet hole structure 401. At this time, the water accumulated in the inner cavity structure 301 will pass through the liquid outlet hole structure 401 and flow downward along the surface of the cutting blade 5. The water flowing along the surface of the cutting blade 5 will flush away the cut thin strips of debris downward, improving the cleaning effect of the thin strips of debris on the interception net 2.

[0024] like Figure 1 As shown, in this embodiment, an annular collection tray 7 is embedded in the installation pipe 1, and the annular collection tray 7 surrounds the interception net 2. During the process of water flowing towards the interception net 2, large-volume debris contained in the water will fall into the annular collection tray 7, preventing large-volume debris from flowing with the water towards the interception net 2 and causing the interception net 2 to be blocked by large-volume debris. A pull rod 71 is fixed to the annular collection tray 7. Maintenance personnel only need to pull the pull rod 71 to easily pick up the annular collection tray 7 and pour out the collected debris to complete the cleaning.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rainwater drain outlet protection device that facilitates the cleaning of debris, comprising: an installation pipe (1); an interception net (2) fixedly connected to the installation pipe (1); the interception net (2) is composed of a filter grid structure consisting of several grid strips (21); Its features are: It also includes a pressure plate (3); the pressure plate (3) is slidably connected to the interception net (2); the grid strips (21) of the interception net (2) are provided with a cutting groove structure (201); the pressure plate (3) and the interception net (2) are fixedly connected with an external pressure spring (31); a fixing plate (4) is connected in the inner cavity structure (301) of the pressure plate (3); the fixing plate (4) is fixedly connected with a cutting blade (5) that corresponds to the number and position of the cutting groove structure (201) of the grid strip (21).

2. The rainwater drain outlet protection device for easy cleaning of debris according to claim 1, characterized in that: The pressure plate (3) is provided with an inlet hole structure (302) that connects to the inner cavity structure (301); the fixing plate (4) is provided with several outlet holes (401) that connect to the inner cavity structure (301).

3. A rainwater drain outlet protection device for easy cleaning of debris according to claim 2, characterized in that: The liquid outlet through-hole structure (401) is closely attached to the corresponding cutting blade (5).

4. A rainwater drain outlet protection device for easy cleaning of debris according to claim 3, characterized in that: The fixed plate (4) is slidably connected to the pressure plate (3), and the pressure plate (3) and the fixed plate (4) are both fixedly connected to an internal pressure spring (41).

5. A rainwater drain outlet protection device for easy cleaning of debris according to claim 4, characterized in that: A sealing plug (6) is fixed on the pressure plate (3) in a number and position corresponding to the liquid outlet through hole structure (401).

6. A rainwater drain outlet protection device for easy cleaning of debris according to any one of claims 1-5, characterized in that: An annular collection tray (7) for collecting large-volume debris is placed on the installation tube (1).

7. A rainwater drain outlet protection device for easy cleaning of debris according to claim 6, characterized in that: A pull rod (71) is fixedly connected to the annular collection tray (7).

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