Drainage device for sewer well in region with frequent heavy rainfall weather

Abstract

The utility model discloses a sewer well drainage device in areas with frequent heavy rainfall weather, which comprises a filter mesh cage, the filter mesh cage is of a cage body structure with one end open and the other end closed, pores allowing water to penetrate through are arranged on the side wall and the cage bottom of the cage body, and the size of the cage opening is matched with the inner diameter of a well ring. A connecting part is arranged at a cage opening and extends to the outer side of the filter screen cage; in non-heavy rainfall weather, the filter net cage is placed in the sewer well with the cage opening facing upwards, and at the moment, the connecting part is lapped on the well ring and fixed to the well ring in a detachable mode; in heavy rainfall weather, the cage opening of the filter net cage faces downwards and covers the well mouth of the sewer well, and at the moment, the connecting part is placed on the well ring and fixed to the well ring in a detachable mode. The drainage device is simple in structure, convenient to assemble and disassemble, capable of effectively achieving safe and efficient drainage of the sewer well in the short-time heavy rainfall weather such as typhoon, easy to manufacture, high in practicability and worthy of popularization, and manufacturing materials are common and easy to obtain.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal drainage construction, in particular to a sewer drainage device in areas where heavy rainfall occurs frequently. Background Art

[0002] Coastal areas are greatly affected by seasonal typhoons. Typhoon weather is often accompanied by short-term heavy rainfall. Daily drainage of sewer wells cannot meet the drainage needs of short-term heavy rainfall on typhoon days, which can easily cause water accumulation and urban waterlogging, endangering the safety of surrounding underground buildings. The daily way to deal with typhoon weather is to manually open the drainage wells and directly discharge sewage on typhoon weather. Due to the lack of effective protection and control measures, blindly opening the drainage wells to drain water can easily cause pedestrians to fall, causing garbage, leaves, etc. to flow into the sewers and cause the sewer pipe network to be blocked. How to improve the drainage capacity of sewer wells while eliminating the risk of falling of surrounding personnel, and ensure that the underground drainage network is not blocked due to blind drainage, aggravating the occurrence of waterlogging, is the key and difficult point in solving the problem of waterlogging caused by short-term heavy rainfall on typhoon days, and it is also the core problem faced by cities in coastal areas in dealing with typhoon-induced waterlogging and secondary hazards. Utility Model Content

[0003] The utility model aims to provide a drainage device for a sewer in areas where heavy rainfall occurs frequently, so as to solve the technical problems described in the background technology.

[0004] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0005] A drainage device for a sewer well in an area with frequent heavy rainfall, comprising a filter cage, wherein the filter cage is a cage structure with one end open and the other end closed, the side wall and the bottom of the cage are both provided with holes allowing water to pass through, the cage mouth size matches the inner diameter size of the well ring, a connecting portion is provided at the cage mouth, and the connecting portion extends to the outside of the filter cage;

[0006] In non-heavy rainfall weather, the filter cage is placed in the sewer with the cage opening facing upwards. At this time, the connecting part is placed on the well ring and fixed to the well ring in an open and disassembled manner;

[0007] During heavy rainfall, the filter cage is placed with its mouth facing downwards at the mouth of the sewer well. At this time, the connecting portion is placed on the well ring and fixed to the well ring in a detachable manner.

[0008] Preferably, the connecting part adopts the structural form of a connecting ear plate or a flange plate, and reserved bolt holes are opened on the connecting part and the well ring correspondingly, and the connecting part and the well ring are detachably fixed by connecting bolts inserted into the reserved bolt holes.

[0009] Preferably, the filter cage adopts the structure of a steel cage, and the filter cage is cylindrical, truncated cone or conical.

[0010] Preferably, the filter cage is painted with yellow and white paint.

[0011] Preferably, a warning light is provided on the filter cage in a detachable and fixed manner.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a simple structure and is easy to install and disassemble. During daily use, the filter cage is placed under the wellhead without affecting the closure of the manhole cover. In heavy rain weather, it can be taken out and inverted to achieve the functions of emergency drainage and isolation of blockages. It can also play the role of a protective fence to prevent the risk of pedestrians accidentally falling. With a rechargeable electric wrench, only one person can achieve rapid installation and disassembly. It is convenient and fast, with strong operability. It effectively solves the problem of safe and efficient drainage of manholes during short-term heavy rainfall weather such as typhoons. Moreover, the manufacturing materials are common and easily available, the manufacturing is simple, the practicability is strong, and it is worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The above and / or other aspects and advantages of the present invention will become clearer and easier to understand through the detailed description made in conjunction with the following drawings, which are only schematic and do not limit the present invention, wherein:

[0014] Figure 1 This is a schematic diagram of the installation structure of the utility model in daily use;

[0015] Figure 2 This is a schematic diagram of the installation structure of the utility model when it is used in heavy rainfall weather;

[0016] Figure 3 This is a schematic diagram of the structure of the manhole cover and manhole ring of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the filter cage of the utility model.

[0018] Figure numerals: 1. manhole cover; 2. manhole ring; 3. reserved bolt hole; 4. filter cage; 5. connecting part; 6. hinge; 7. connecting bolt. DETAILED DESCRIPTION

[0019] Hereinafter, an embodiment of a sewer drainage device for areas with frequent heavy rainfall of the utility model will be described with reference to the accompanying drawings. The embodiments described herein are specific embodiments of the utility model, which are used to illustrate the concept of the utility model, are explanatory and exemplary, and should not be interpreted as limiting the implementation methods of the utility model and the scope of the utility model. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the contents disclosed in the claims and the specification of this application, including technical solutions that adopt any obvious replacements and modifications to the embodiments described herein.

[0020] In the description of the present invention, it should be noted that the terms "front", "rear", "left", "right", "top", "bottom", "up", "down", "inside", "outside", "horizontal", "longitudinal", "vertical", "oblique" and the like indicate directions or positional relationships based on the directions 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] The drawings of this specification are schematic diagrams, which assist in explaining the concept of the utility model and schematically show the shapes of various parts and their mutual relationships. Please note that in order to clearly show the structure of various components of the embodiments of the utility model, the drawings are not drawn according to the same scale. The same reference numerals are used to represent the same parts.

[0022] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The embodiments are only used to explain the present invention and are not intended to limit the scope of the present invention. Figure 1-4 , the preferred embodiments of the utility model are further described in detail:

[0023] like Figure 1-4 As shown, the utility model is preferably a drainage device for a sewer well in an area with frequent heavy rainfall, comprising a filter cage 4, wherein the filter cage 4 is a cage structure with one end open and the other end closed, and the side wall and the cage bottom of the cage are provided with pores allowing water to penetrate, and the cage mouth size matches the inner diameter size of the well ring 2, and a connecting portion 5 is provided at the cage mouth, and the connecting portion 5 extends to the outside of the filter cage 4;

[0024] like Figure 1 As shown, in the daily use state when there is no heavy rainfall, the filter cage 4 is placed in the sewer with the cage opening facing upwards. At this time, the connecting part 5 is placed on the well ring 2 and fixed to the well ring 2 in an open and disassembled manner;

[0025] like Figure 2 As shown, when encountering short-term heavy rainfall weather such as typhoon, the filter cage 4 is covered at the wellhead of the sewer with the cage opening facing downwards, and at this time, the connecting part 5 is placed on the well ring 2 and fixed to the well ring 2 in a detachable manner;

[0026] Considering the structural strength, material difficulty and manufacturing difficulty, the preferred structural form of the filter cage 4 is a steel cage welded with round steel bars at intervals of 5-10 cm. The shape of the steel cage can be designed to be cylindrical, truncated cone or conical. However, when the steel cage is made into a conical shape, protective measures need to be set at the top of the cone to avoid the problem of sharp points hurting people. The outer diameter of the cage mouth of the filter cage 4 is preferably slightly smaller than the inner diameter of the well ring 2, so as to facilitate the installation of the filter cage 4 while avoiding the problem of too large a gap between the filter cage 4 and the well ring 2, which causes the problem of reduced filtering effect.

[0027] In order to more conveniently realize the installation and disassembly operation between the filter cage 4 and the well ring 2, a circle of flange plates are preferably welded and fixed at the cage mouth of the filter cage 4 in the form of a steel cage, or a number of connecting ear plates are welded at corresponding annular intervals as a connecting portion 5. At the same time, reserved bolt holes 3 are opened on the connecting portion 5 and the well ring 2, and the connecting portion 5 and the well ring 2 are detachably fixed by connecting bolts 7 inserted in the reserved bolt holes 3. The connecting bolts 7 are connected to the well ring 2. The fixing method can not only ensure that the filter cage 4 can be effectively fixed on the manhole ring 2 in typhoon weather to prevent it from being washed away by rain or kicked away by pedestrians accidentally, but also greatly simplify the difficulty of installation and removal. The operator can cooperate with the rechargeable electric wrench, and only one person can realize rapid installation and removal, which is convenient, fast and easy to operate. On this basis, in order to ensure that the manhole cover 1 can still be effectively fixed, a sinking groove is preferably provided on the inner side of the manhole cover 1 corresponding to the connecting part 5 to accommodate the protruding connecting part 5 and the end of the connecting bolt 7, or the manhole ring 2 is set to a step shape, and the inner ring part is sunken to avoid the connection part 5 and the connecting bolt 7 protruding from the manhole ring 2. The part that affects the buckling of the manhole cover 1 causes the problem of loose buckling;

[0028] In order to ensure that the inverted filter cage 4 has sufficient security functions in short-term heavy rainfall weather such as typhoons, the height of the filter cage 4 should be set to 1.2-1.5m, and the cage body should be painted with anti-rust paint as a whole, and the surface layer should be painted with yellow and white interval warning paint or fixed reflective warning strips to serve as a warning. Of course, a night warning light or a warning reminder device with sound and light warning functions can also be installed on the filter cage 4 to further enhance the night warning effect.

[0029] Before a typhoon arrives, open the manhole cover 1, lead the filter cage 4 and fix it to the wellhead with the connecting bolts 7 so that it is higher than the ground and acts as a guardrail, which can achieve the requirements of drainage and preventing people from falling on typhoon days, and at the same time prevent debris from flowing into the pipeline and causing blockage of the manhole pipe and aggravating the drainage pressure; on non-typhoon days, the filter cage 4 is opened upward and installed in the well, which can prevent the risk of people falling due to accidental loss of the manhole cover 1. The installation principle is consistent with that on typhoon days, and it can be fixed on the well ring 2 by the connecting bolts 7, which is convenient for removal before the next typhoon. In order to prevent the manhole cover 1 from being washed away by the water flow after being opened on typhoon days, the manhole cover 1 is preferably hingedly connected to the well ring 2 by the hinge 6. In this way, the opened manhole cover 1 can be laid on the road surface beside the well to avoid the impact on the filter cage 4 under the action of the water flow, and it can also ensure that the manhole cover 1 is not washed away by the running water.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drainage device for a sewer in areas with frequent heavy rainfall, characterized by: The filter cage (4) comprises a cage structure with one end open and the other end closed, the side walls and the bottom of the cage are provided with holes that allow water to pass through, the cage mouth size matches the inner diameter size of the well ring (2), a connecting portion (5) is provided at the cage mouth, and the connecting portion (5) extends to the outside of the filter cage (4); In non-heavy rainfall weather, the filter cage (4) is placed in the sewer with its cage opening facing upwards. At this time, the connecting portion (5) is placed on the well ring (2) and is fixed to the well ring (2) in an open and disassembled manner; During heavy rainfall, the filter cage (4) is placed at the wellhead of the sewer with its mouth facing downwards. At this time, the connecting portion (5) is placed on the well ring (2) and fixed to the well ring (2) in a detachable manner.

2. A drainage device for a sewer in an area with frequent heavy rainfall according to claim 1, characterized in that: The connecting portion (5) adopts a structural form of a connecting ear plate or a flange plate, and corresponding reserved bolt holes (3) are opened on the connecting portion (5) and the well ring (2), and the connecting portion (5) and the well ring (2) are detachably fixed by connecting bolts (7) inserted into the reserved bolt holes (3).

3. The drainage device for a sewer in an area with frequent heavy rainfall according to claim 1, characterized in that: The filter cage (4) adopts the structural form of a steel cage, and the filter cage (4) is cylindrical, truncated cone or conical.

4. The drainage device for a sewer in an area with frequent heavy rainfall according to claim 1, characterized in that: The filter cage (4) is painted with yellow and white paint.

5. The drainage device for a sewer in an area with frequent heavy rainfall according to claim 1, characterized in that: A warning light is provided on the filter cage (4) in a detachable and fixed manner.

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