CN216075458U

CN216075458U - Unpowered backflow preventing equipment in sewage intercepting well

Info

Publication number: CN216075458U
Application number: CN202122805205.5U
Authority: CN
Inventors: 金幼武; 李�浩
Original assignee: CILIN & CAS ENVIRONMENTAL TECHNOLOGY (ANHUI) Inc
Current assignee: CILIN & CAS ENVIRONMENTAL TECHNOLOGY (ANHUI) Inc
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-03-18
Anticipated expiration: 2031-11-16

Abstract

The utility model discloses unpowered backflow preventing equipment in a sewage intercepting well, which is arranged on a sewage discharge port of the intercepting well and comprises a buoy valve, wherein the buoy valve comprises a valve body arranged in the wall of the sewage intercepting well, a valve port, a valve and a buoy, the valve port is arranged on the valve body, is opposite to and communicated with the sewage discharge port, realizes opening and closing of the valve port, drives the valve to automatically rotate, the valve and the buoy are both arranged on the side surface of the valve body facing the inside of the sewage intercepting well, and a flap valve for realizing opening and closing of the valve port is arranged on the side of the valve body away from the valve; the unpowered backflow preventing equipment in the sewage intercepting well only adopts one valve body, realizes automatic closing backflow preventing during normal sewage draining and rainfall, solves the problem that two sets of equipment and two mounting surfaces of two inlets are needed to realize the functions in the prior art, saves the cost and is convenient to manage.

Description

Unpowered backflow preventing equipment in sewage intercepting well

Technical Field

The utility model belongs to the field of intercepting wells, and particularly relates to unpowered backflow preventing equipment in a sewage intercepting well.

Background

In the current rainwater and sewage reposition of redundant personnel or confluence system that uses, the flotation pontoon valve of application is limited to sewage and dams only, and when outer net sewage water level was too high, can cause outer net sewage to flow backward the phenomenon to make sewage get into the rainwater pipe net or flow backward urban drainage system and take place the waterlogging. In order to prevent rainwater of the external network from flowing backwards, the tail end of the drainage system is additionally provided with the backflow-preventing flap valve, so that two sets of equipment are needed at one sewage drainage port, two well mouths and two installation surfaces need to be built, the construction cost is high, the difficulty is high, the equipment manufacturing and installation cost is high, the construction is complex, and the construction period is long.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide unpowered backflow preventing equipment in a sewage intercepting well, which only adopts a valve body, realizes automatic closing backflow preventing during normal sewage draining and rainfall, solves the problem that two sets of equipment and two mounting surfaces of two inlets are needed to realize the functions in the prior art, saves the cost and is convenient to manage.

The unpowered backflow preventing device in the sewage intercepting well comprises a float valve, wherein the float valve comprises a valve body arranged in the wall of the sewage intercepting well, a valve port arranged on the valve body and opposite to and communicated with the sewage draining port, a valve for opening and closing the valve port and a float for driving the valve to rotate automatically, the valve and the float are both arranged on the side surface of the valve body facing the interior of the sewage intercepting well, and a flap valve for opening and closing the valve port is arranged on the side of the valve body away from the valve.

Preferably, a first sealing ring and a second sealing ring are respectively arranged on two sides of the valve port, and the first sealing ring and the second sealing ring are respectively matched with the valve and the flap valve to realize the complete closing of the valve port.

Preferably, a connecting rod is fixed on the float bowl along the radial direction, an internal gear is fixed at the other end of the connecting rod, a first external gear is meshed with the internal gear in an internal manner, an active rotating shaft penetrates through the first external gear, and the other end of the active rotating shaft penetrates through the valve body to realize the installation of the float bowl and the valve body;

the driving rotating shaft is further fixedly provided with a second external gear, the valve is fixedly connected with a driven rotating shaft penetrating through the valve body, a third external gear is fixed on the driven rotating shaft, and the second external gear is meshed with the third external gear to realize that the buoy drives the valve to rotate.

Preferably, a top edge of the flap valve is connected with a rotating shaft which is horizontally arranged, and the flap valve is hinged with the valve body through the rotating shaft.

Preferably, a limiting plate is fixed on the side, far away from the valve, of the valve body, and the limiting plate is arranged at the upper part of the flap valve, so that the opening angle of the flap valve is limited.

Preferably, a U-shaped cover plate is arranged on the valve body towards the inner side of the sewage intercepting well, the valve, the second external gear and the third external gear are located between the cover plate and the valve body, the driving rotating shaft penetrates out of the cover plate to be connected with the connecting rod, a water outlet communicated with the valve port is formed in the cover plate, the top of the cover plate is closed, and the bottom of the cover plate is communicated with the sewage intercepting well and the valve port.

Preferably, the valve body, the buoy, the driving rotating shaft, the driven rotating shaft and the rotating shaft are all made of stainless steel materials, and the valve, the flap valve, the first sealing ring and the second sealing ring are all made of PP or PTFE materials.

The unpowered backflow preventing equipment in the sewage intercepting well has the advantages that:

1. the flap valve is arranged on the back of the valve port and closes the valve port under the self weight and the rainwater pressure, so that the backflow prevention is realized. In the technical scheme, only one valve body is adopted, so that the automatic closing and backflow prevention during normal sewage discharge and rainfall are realized, the problem that two sets of equipment and two installation surfaces of two inlets are required to realize the functions in the prior art is solved, the cost is saved, and the management is convenient.

2. Two sets of gear pairs are connected on the float bowl, and the float bowl position adjustment and the action that the float bowl drives the valve rotation are realized respectively, so that the float bowl valve has stronger adaptability.

Drawings

FIG. 1 is a schematic view of unpowered backflow prevention equipment in a sewage intercepting well according to the technical scheme of the utility model;

FIG. 2 is a schematic view of the overall structure of the float valve in the present embodiment;

FIG. 3 is a schematic view of the internal structure of the float valve in the present embodiment;

FIG. 4 is a schematic view of the front structure of the float valve in the present embodiment;

FIG. 5 is a schematic side view of the float valve according to the present disclosure;

fig. 6 is a schematic view of a structure of the back surface of the float valve in the present embodiment.

Detailed Description

In order to facilitate the understanding of the technical solutions of the present invention for those skilled in the art, the technical solutions of the present invention will be further described with reference to the drawings attached to the specification.

Referring to fig. 1, a general sewage intercepting well includes a sewage intercepting well body 1, and a sewage inlet 111 and a sewage discharge port 121 provided on the sewage intercepting well body 1, wherein the sewage inlet 111 and the sewage discharge port 121 are respectively communicated with a sewage inlet pipe 11 and a sewage discharge pipe 12. The dirty pipeline 11 of advancing of intercommunication has a set of or multiunit with sewage import 111 on this sewage vatch basin body 1, realizes in this sewage vatch basin that to merge then unified the discharging away with sewage. Among the prior art, in order to avoid the rainwater among the outer net pipeline to flow backward in this sewage vatch basin when the rainfall, and then flow backward to the city through advancing dirty pipeline, generally keep away from this sewage vatch basin end at sewage pipes and build a well head again, the equipment of flowing backward is prevented in this well head installation, need build two well heads among the sewage discharge system like this, two installation faces, the construction cost is high, the degree of difficulty is big, equipment manufacturing, installation cost is high, the construction is complicated, the construction cycle is long.

In order to solve the technical problems, the unpowered backflow preventing device structure in the sewage intercepting well is provided below, and as shown in fig. 1, the unpowered backflow preventing device in the sewage intercepting well according to the technical scheme of the utility model comprises a float valve 2 installed on a sewage discharge port in the sewage intercepting well, wherein the float valve 2 comprises a valve body 21 installed in the wall of the sewage intercepting well, a valve port 22 arranged on the valve body 21 and opposite to and communicated with the sewage discharge port 121, a valve 23 for realizing opening and closing of the valve port 22 and a float 24 for driving the valve 23 to rotate automatically. Wherein the valve 23 and the float 24 are both arranged on the side of the valve body 21 facing the interior of the sewage intercepting well. A flap valve 25 for opening and closing the valve port 22 is provided on the valve body 21 side remote from the valve 23.

Based on the above technical scheme, when the rain falls, and the sewage is normally discharged, the sewage enters the sewage intercepting well through the sewage inlet pipeline 11 and the sewage inlet 111, and then is directly discharged to the sewage treatment plant or the next sewage intercepting position through the sewage discharge port 121 and the sewage discharge pipeline 12. At this time, the float 24 sinks under its own weight, so that the valve 23 connected by the gear pair is upward, and at the same time, because the sewage is discharged outward, the flap valve 25 automatically rotates upward to open under the flow of the sewage, so that the valve port 22 is normally opened, and the sewage is normally discharged. If during the rainfall, the outer net water level is higher, and sewage pipes 12 with outer net pipeline intercommunication have the rainwater to get into, and this moment, the water level is high, and at this moment, flap valve 25 receives outside water pressure effect down, by the downwardly rotating, realizes closing valve port 22, can realize preventing flowing backward, has effectually avoided the outer net rainwater to get into this sewage vatch basin, avoids flowing backward waterlogging scheduling problem.

Based on the technical scheme, the flap valve 225 is arranged on the back of the valve port 22, and the flap valve 25 closes the valve port under the self weight and the rainwater pressure, so that backflow prevention is realized. In the technical scheme, only one valve body 21 is adopted, so that the automatic closing and backflow prevention during normal sewage discharge and rainfall are realized, the problem that two sets of equipment and two installation surfaces of two inlets are required to realize the functions in the prior art is solved, the cost is saved, and the management is convenient.

As shown in fig. 3 and 6, a first sealing ring 221 and a second sealing ring 222 are respectively disposed on both sides of the valve port 22, and the first sealing ring 221 and the second sealing ring 222 are respectively matched with the valve 23 and the flap valve 25 to achieve complete closing of the valve port 22. This technical scheme realizes when the rainfall, can close valve port 22 completely, avoids a small amount of rainwater or along with the rainwater water level rising, the problem in rainwater infiltration intercepting well. Meanwhile, the valve port is effectively heightened by the sealing ring, so that the valve 23 and the flap valve 25 can easily contact with the valve port when being closed, and the problem that the valve 23 and the flap valve 25 need to be installed tightly to the valve body and directly generate friction with the valve body in work is avoided.

As shown in fig. 3, a connecting rod 241 is radially fixed to the float 24, and an internal gear 242 is fixed to the other end of the connecting rod 241. The internal gear 242 internally meshes with a first external gear, and a driving rotation shaft 243 is inserted through the first external gear. The other end of the driving rotating shaft 243 penetrates through the valve body 21 to realize the installation of the float 24 and the valve body 21. In this technical solution, the float 24 is connected to the driving shaft 243 through a gear pair, so that the position of the float 24 can be adjusted. That is, in the case that the driving shaft 243 is fixed and does not rotate, the direction of the connecting rod 241 can be adjusted by rotating the inner gear 242 alone, that is, the position of the buoy (vertical height in the intercepting well) can be adjusted at this time. When the inner gear 242 is rotated at a single end, the inner gear 242 needs to be separated from the first outer gear, and after the inner gear is rotated to a required angle, the inner gear is sleeved on the first outer gear along the axial direction of the driving rotating shaft 243 to realize the meshing of the first outer gear and the inner gear 242.

Based on above-mentioned technical scheme, the regulation of flotation pontoon position height has been realized to the setting of internal gear and first external gear structure, can realize damming and discharging the setting at the sewage of different periods or different emission requirements.

As shown in fig. 3, in the present embodiment, a second external gear 244 is further fixed on the driving rotating shaft 243. The valve 23 is fixedly connected with a driven rotating shaft 231 penetrating through the valve body 21. A third external gear 232 is fixed on the driven rotating shaft 231, and the second external gear 244 is meshed with the third external gear 232, so that the buoy 24 drives the valve 23 to rotate. In this technical scheme, the rotation of valve 23 has been realized on the one hand to the design of second external gear 244 and third external gear 232 gear pair, and on the other hand has realized the auto-lock of valve 23.

As shown in fig. 6, a rotating shaft 251 is horizontally connected to the top edge of the flap valve 25, and the rotating shaft 251 realizes the hinge connection between the flap valve 25 and the valve body 21. The flap valve 25 and the valve body 21 are simple and convenient to install and connect, the number of related structural components is small, the failure rate is reduced, and the backflow prevention function can be normally realized during rainfall.

As shown in fig. 3, a limit plate 252 is fixed to the valve body 21 on the side away from the valve 23, and the limit plate 252 is provided at the upper position of the flap valve 25 to limit the opening angle of the flap valve 25. The limiting plate 252 limits the upward rotation angle of the flap valve 25, and prevents the flap valve 25 from being difficult to reset downwards after excessive upward rotation, so that the flap valve cannot normally perform the anti-backflow function in rainfall.

As shown in fig. 2, the valve body 21 is provided with a U-shaped cover plate 20 toward the inside of the sewage intercepting well. The valve 23, the second external gear 244, and the third external gear 232 are all located between the cover plate 20 and the valve body 21. The driving shaft 243 penetrates through the cover plate 20 and is connected with the connecting rod 241. The cover plate 20 is provided with a water outlet 201 communicated with the valve port 22, the top of the cover plate 20 is closed, and the bottom of the cover plate 20 is communicated with the sewage intercepting well and the valve port 22. Due to the arrangement of the cover plate 20, the valve 23, the second outer gear 244 and the third outer gear 232 are protected, the phenomenon that after some larger garbage such as branches and sticks enters the intercepting well, the valve 23, the second outer gear 244 and the third outer gear 232 are blocked is avoided, and the float valve is prevented from being broken down.

According to the technical scheme, the valve body, the floating barrel, the driving rotating shaft, the driven rotating shaft and the rotating shaft are all made of stainless steel materials, and the valve has the advantages of being strong in corrosion resistance and the like. The valve, the flap valve, the first sealing ring and the second sealing ring are all made of PP or PTFE materials, so that the weight is reduced, the friction coefficient is effectively reduced, and the manufacturing cost is reduced.

Technical solution of the utility model the present invention is described above with reference to the accompanying drawings by way of example, and it is to be understood that the specific implementation of the present invention is not limited to the above-described embodiments, and it is within the scope of the present invention to employ various insubstantial modifications of the method concept and technical solution of the present invention, or to directly apply the concept and technical solution of the present invention to other applications without modification.

Claims

1. The unpowered backflow preventing equipment in the sewage intercepting well is arranged on a sewage discharge port in the sewage intercepting well and is characterized by comprising a buoy valve, wherein the buoy valve comprises a valve body arranged in the wall of the sewage intercepting well, a valve port arranged on the valve body and opposite to and communicated with the sewage discharge port, a valve for opening and closing the valve port and a buoy for driving the valve to rotate automatically, the valve and the buoy are both arranged on the side surface of the valve body facing the inside of the sewage intercepting well, and a flap valve for opening and closing the valve port is arranged on the side of the valve body away from the valve.

2. The unpowered backflow prevention device in a sewage intercepting well according to claim 1, wherein a first sealing ring and a second sealing ring are respectively arranged on two sides of the valve port, and the first sealing ring and the second sealing ring are respectively matched with the valve and the flap valve to achieve complete closing of the valve port.

3. The unpowered backflow prevention device in a sewage intercepting well according to claim 1, wherein a connecting rod is radially fixed on the buoy, an internal gear is fixed at the other end of the connecting rod, a first external gear is meshed with the internal gear in an engaged manner, a driving rotating shaft penetrates through the first external gear, and the other end of the driving rotating shaft penetrates through the valve body to realize the installation of the buoy and the valve body;

4. The unpowered backflow prevention device in a sewage intercepting well according to claim 1, wherein a rotating shaft arranged in a horizontal shape is connected to the top edge of the flap valve, and the flap valve is hinged to the valve body through the rotating shaft.

5. The unpowered backflow preventing device in a sewage intercepting well according to claim 1, wherein a limiting plate is fixed to the side, away from the valve, of the valve body, and the limiting plate is arranged at the upper portion of the flap valve to limit the opening angle of the flap valve.

6. The unpowered backflow prevention device in a sewage intercepting well according to claim 1, wherein a U-shaped cover plate is arranged on the valve body towards the inner side of the sewage intercepting well, the valve, the second external gear and the third external gear are located between the cover plate and the valve body, the driving rotating shaft penetrates through the cover plate and is connected with the connecting rod, a water outlet communicated with the valve port is formed in the cover plate, the top of the cover plate is closed, and the bottom of the cover plate is communicated with the sewage intercepting well and the valve port.

7. The unpowered backflow prevention device in a sewage intercepting well according to claim 1, wherein the valve body, the float bowl, the driving rotating shaft, the driven rotating shaft and the rotating shaft are all made of stainless steel materials, and the valve, the flap valve, the first sealing ring and the second sealing ring are all made of PP or PTFE materials.