CN217268006U

CN217268006U - Novel high-efficient drainage of two-stage is prevented flowing backward and is clapped door

Info

Publication number: CN217268006U
Application number: CN202220151569.8U
Authority: CN
Inventors: 郭宁; 桑玮; 解德炜; 郑伟; 王春海; 张鹏; 李剑楠
Original assignee: Shandong Land Group Weifang Co Ltd
Current assignee: Shandong Land Group Weifang Co Ltd
Priority date: 2022-01-20
Filing date: 2022-01-20
Publication date: 2022-08-23
Anticipated expiration: 2032-01-20

Abstract

The utility model relates to a novel high-efficient drainage of two-stage is prevented flowing backward and is clapped door belongs to drainage pipe and claps door technical field. The device comprises a flap seat, a rotating shaft, a higher-level flap door and a lower-level flap door, wherein an upper fixed platform is arranged at the upper part of the flap seat, a lower fixed platform is arranged at the middle part of the flap seat, and the higher-level flap door is connected with the upper fixed platform and the lower-level flap door is connected with the lower fixed platform through the rotating shaft. The water level difference required by opening the flap valve can be reduced, so that quick drainage is facilitated; meanwhile, the upper and lower clap doors operate independently, and when the external water level is lower than the lower clap door, the two clap doors can operate independently; when the water level completely submerges the lower-level flap valve, the upper-level flap valve can still be normally opened, drainage is facilitated, and waterlogging is avoided. The flap valve is divided into an upper stage and a lower stage, the flap valves of the two stages are independently opened and closed, the force arm of each stage of flap valve from the rotating shaft is shorter, the influence of the dead weight of the flap valve can be reduced, when the water level of the tide rises to the pipe, the flap valve of the upper stage is not influenced and can still be freely opened and closed, and the rapid drainage of a pipeline is facilitated.

Description

Novel high-efficient drainage of two-stage is prevented flowing backward and is clapped door

Technical Field

The utility model relates to a novel high-efficient drainage of two-stage is prevented flowing backward and is clapped door belongs to drainage pipe and claps door technical field.

Background

The flap valve is a water-stopping device which is arranged at the tail end of a drainage pipeline and prevents water from flowing back to the pipeline. The flap valve is arranged at the tail end of a drainage pipeline on the bank side of water bodies such as rivers, lakes, seas and the like, and can be automatically closed when the water level of the outer tide is higher than the water level in the pipeline, so that water flow is prevented from flowing backwards. The flap valve rotating shaft commonly used at present is positioned above, and the moment is large. The opening degree of the flap valve is influenced by the pressure difference of water inside and outside the pipeline and the self-gravity moment of the door plate, and when the external water level of the flap valve rises, the integral opening degree of the flap valve can be seriously influenced, so that the drainage effect is not ideal. The conventional flap valve is greatly restricted by the water level in the pipeline and the water level of the outer tide, and although the backflow can be effectively prevented, the drainage capacity of the pipeline is greatly weakened, and the applicability is poor, so that a flap valve with a novel structure is needed to reduce the influence of the restriction.

Disclosure of Invention

The utility model discloses a remedy prior art's is not enough, provides a novel high-efficient drainage of two-stage prevents flowing backward flap valve.

In order to achieve the purpose, the utility model is realized by adopting the following technical scheme:

the utility model provides a novel two-stage high-efficient drainage is prevented flowing backward and is clapped door, includes clap a seat, pivot, higher level's clap door and subordinate's clap door, clap a seat upper portion and be provided with the fixed station, the middle part is equipped with down the fixed station, be connected through the pivot between higher level's clap door and the last fixed station and between subordinate's clap door and the lower fixed station.

Preferably, the upper flap valve and the lower flap valve are inclined outwards from top to bottom, and the inclination angle is 10-20 degrees.

Preferably, the upper fixing table and the lower fixing table are both provided with lifting lugs for fixing the rotating shaft, and transition plates adapted to the lifting lugs are arranged at corresponding positions of the upper-level flap valve and the lower-level flap valve.

Preferably, a rubber sealing strip is arranged between the upper-level flap valve and the lower-level flap valve, and rubber sealing rings are arranged between the upper-level flap valve and the lower-level flap valve and between the flap valve seat and the flap valve seat.

Preferably, the upper-stage flap valve and the lower-stage flap valve are made of carbon steel, stainless steel or glass fiber reinforced plastics, and a plurality of bolt holes are formed in the periphery of the flap valve seat.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

1. the utility model can reduce the water head required by opening the flap valve, thereby facilitating quick drainage; meanwhile, the upper and lower clap doors operate independently, and when the external water level is lower than the lower clap door, the two clap doors can operate independently; when the water level completely submerges the lower-level flap valve, the upper-level flap valve can still be normally opened, drainage is facilitated, and waterlogging is avoided.

2. The utility model discloses to clap the door and divide into upper and lower two-stage, the two-stage claps the door and independently opens and shuts, and each level claps the door shorter apart from the arm of force of pivot, can reduce the influence of clapping the door dead weight, and when the tide water level rose to managing in, higher level claps the door not influenced, still can freely open and shut, is favorable to the quick drainage of pipeline.

Drawings

Fig. 1 is the utility model discloses the high-efficient drainage of two-stage prevents flowing backward the structural sketch map of flap valve.

FIG. 2 is a schematic view taken along line A-A in FIG. 1.

Fig. 3-5 are schematic diagrams of operation conditions of subordinate flap valves with different water levels.

The figures are numbered: 1 clap a seat, 2 subordinate clap the door, 3 higher levels clap the door, 4 higher levels clap a pivot, 5 subordinate clap a pivot, 6 clap a seat fixing bolt hole, 7 clap a lug, 8 water seal rubber circles, 9 pipelines, 10 rivers directions, 11 pipeline interior liquid levels, 12 pipeline exterior liquid levels.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Example 1

The attached drawings are specific embodiments of the present invention, and as shown in fig. 1-2, the present embodiment provides a detailed structure of a novel two-stage efficient drainage backflow-preventing flapper door. The flap seat 1 is a part for fixing the whole structure on a retaining structure such as a river retaining wall, an upper flap door and a lower flap door are arranged on the flap seat 1, and the cross sections of the two flap doors are attached to the corresponding positions of the flap seat 1. Wherein, the installation mode of the upper-level flap valve 3 is the same as the installation mode of the original flap valve, and the upper-level flap valve 3 is arranged at the top of the flap valve seat. The lower flap valve 2 is arranged in the middle of the flap valve seat 1 (the specific position can be adjusted according to the actual drainage requirement), and the upper flap valve 3 and the lower flap valve 2 are respectively connected with the flap valve seat 1 through the upper flap valve rotating shaft 4 and the lower flap valve rotating shaft 5. An upper fixing platform and a lower fixing platform are respectively arranged at corresponding positions of the flap valve seat 1, and through holes are correspondingly formed for installing rotating shafts. The upper flap valve 3 and the lower flap valve 2 can rotate around the rotating shaft to realize opening and closing.

Wherein two lugs 7 of clapping a door about going up the fixed station are located and clap a seat top, and two lugs of lower fixed station are located and clap a seat middle part, and four lugs are fixed with clap a seat formula forming structure as an organic whole or adopt modes such as welding, bolted connection. The upper flap valve 3 corresponding to the upper lifting lug and the lower flap valve 2 corresponding to the lower lifting lug are respectively provided with a corresponding extending transition plate, the shape of the transition plate is matched with that of the lifting lug, and the transition plates are respectively arranged on the inner sides of the flap valve lifting lugs 7. The lower rotating shaft sequentially penetrates through a through hole at one side of the lower lifting lug, through holes at two sides of the lower transition plate and a through hole at the other side of the lower lifting lug; and a rotating shaft above the upper part sequentially penetrates through a through hole at one side of the upper lifting lug, through holes at two sides of the upper transition plate and a through hole at the other side of the upper lifting lug to complete the installation of the upper-level flap valve 3 and the lower-level flap valve 2. The outer sides of the two rotating shafts can be respectively provided with a limiting pin to prevent the rotating shafts from slipping.

In order to better realize installation and drainage, the door plates of the upper-stage flap valve 3 and the lower-stage flap valve 2 are obliquely installed towards the water flow direction 10, and the oblique angle is 10-20 degrees. The upper hanging lug is vertically upward, and the lower hanging lug is transversely extended outwards so as to adapt to the installation of the two flap valves. The positions of the flapper seat 1, the upper-stage flapper door 3 and the lower-stage flapper door 2 are correspondingly extended and transited along with the two flapper door structures, and the gap between the flapper seat and the two flapper doors is reduced as much as possible. In order to reduce water seepage into the pipeline through a gap between the flap valve and the fixed platform due to large external water pressure, a water seal rubber ring 8 is arranged between the flap valve and the fixed platform and is arranged in a groove of the fixed platform, and the sealing ring is made of water seal rubber. Other reliable water stopping measures can be adopted according to actual working conditions or water quality conditions.

The flap valve provided by the embodiment can be installed at the tail end of a drainage pipeline 9 on the bank side of water bodies such as rivers, lakes, seas and the like, the flap valve seat 1 needs to be installed on a reliable holding wall and other fixing facilities, bolts are pre-embedded in the holding wall in advance, and the positions of the bolts need to be opposite to the positions of the fixing bolt holes 6 of the flap valve seat.

The door-clapping seat of the utility model is fixed on the supporting structures such as the riverway retaining wall and the like by fixing bolts; the upper flap valve 3 and the lower flap valve 2 are respectively fixed by flap valve rotating shafts and can rotate around the rotating shafts to realize opening and closing. The rotating shaft can be made of stainless steel, and the upper flap valve 2 and the lower flap valve 3 can be made of carbon steel, stainless steel or glass fiber reinforced plastic and the like according to actual working conditions or water quality conditions.

As shown in figure 3, when the liquid level 11 in the pipeline and the liquid level 12 outside the pipeline are both lower and lower than the lower end of the flap valve at the upper stage, only the flap valve at the lower stage is opened, so that the moment is obviously reduced compared with the moment of the traditional flap valve, and the water flow resistance is small.

As shown in fig. 4, when the liquid level 11 in the pipeline is higher than the lower end of the upper flap valve 3; the liquid level 12 outside the pipeline is lower, when the liquid level is lower than the upper end of the lower flap valve 2, the water pressure is higher, and the upper flap valve 3 and the lower flap valve 2 are both in an open state, so that the quick drainage is facilitated.

As shown in fig. 5, when the liquid level inside the pipe 11 and the liquid level outside the pipe 12 are both higher than the position where the two-stage flap valves are connected, or the liquid level outside the pipe 12 is located near the upper end of the lower-stage flap valve 2, although the lower-stage flap valve 2 cannot be opened, the upper-stage flap valve 3 can be opened independently, the overall moment is small, and the drainage effect is still good.

The opening degree of the conventional flap valve is determined by the pressure difference of water inside and outside the pipeline and the moment of the self weight of the door plate, the moment arm of the original integral flap valve from the rotating shaft is longer, and the opening degree of the flap valve is small under the condition of the same difference of water inside and outside, so that the drainage capacity of the pipeline is influenced. The utility model discloses to clap the door and divide into upper and lower two-stage, the two-stage claps the door and independently opens and shuts, and each level claps the door shorter apart from the arm of force of pivot, can reduce the influence of clapping the door dead weight, and when the tide water level rose to managing in, higher level claps the door not influenced, still can freely open and shut, is favorable to the quick drainage of pipeline.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. The novel two-stage efficient drainage backflow-preventing flap valve is characterized by comprising a flap valve seat, a rotating shaft, a higher-level flap valve and a lower-level flap valve, wherein an upper fixing platform is arranged on the upper portion of the flap valve seat, a lower fixing platform is arranged in the middle of the flap valve seat, and the higher-level flap valve is connected with the upper fixing platform through the rotating shaft, and the lower-level flap valve is connected with the lower fixing platform through the rotating shaft.

2. The novel two-stage efficient drainage backflow-preventing flapper door of claim 1, wherein the upper-stage flapper door and the lower-stage flapper door are inclined outward from top to bottom, and the inclination angle is 10-20 °.

3. The novel two-stage efficient drainage backflow-preventing flapper door as claimed in claim 1, wherein the upper fixing table and the lower fixing table are both provided with lifting lugs for fixing the rotating shaft, and the corresponding positions of the upper-stage flapper door and the lower-stage flapper door are both provided with transition plates adapted to the lifting lugs.

4. The novel two-stage efficient drainage backflow-preventing flapper door as claimed in claim 1, wherein a rubber sealing strip is arranged between the upper-stage flapper door and the lower-stage flapper door, and rubber sealing rings are arranged between the upper-stage flapper door, the lower-stage flapper door and the flapper seat.

5. The novel two-stage efficient drainage backflow-preventing flapper door of claim 1, wherein the upper-stage flapper door and the lower-stage flapper door are made of carbon steel, stainless steel or glass fiber reinforced plastic, and a plurality of bolt holes are arranged around the flapper seat.