CN217679538U

CN217679538U - Inspection well for low-gradient drainage pipeline

Info

Publication number: CN217679538U
Application number: CN202220545882.XU
Authority: CN
Inventors: 李志鹏; 罗杰; 田俊
Original assignee: Urban Public Infrastructure Construction Office Jiangxia District Wuhan City; Central and Southern China Municipal Engineering Design and Research Institute Co Ltd
Current assignee: Urban Public Infrastructure Construction Office Jiangxia District Wuhan City; Central and Southern China Municipal Engineering Design and Research Institute Co Ltd
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2022-10-28
Anticipated expiration: 2032-03-14

Abstract

The utility model provides an inspection shaft for low slope drainage pipe, include: the inspection well comprises an inspection well body, and a chain type mud scraper, an inverted siphon device and a sludge collecting device which are positioned in the inspection well body, wherein the sludge in the inspection well is conveyed to the sludge collecting device through the chain type mud scraper; wherein the inverted siphon device is located in a downstream pipeline communicated with the inspection well. The advantages are that: set up chain mud scraper, the siphon device of falling in detecting the well to the design of silt deposit recess isotructure in the cooperation inspection shaft makes the utility model discloses under the certain difference in height's of surface of water formation condition, carry out the water conservancy desilt to the silt deposit that forms because of the low slope in 2 adjacent inspection shaft pipelines, impurity such as mud collects the silt deposit in the inspection shaft under the siphon effect of falling, makes things convenient for daily clearly to draw and maintains.

Description

Inspection well for low-gradient drainage pipeline

Technical Field

The utility model belongs to the technical field of drainage inspection shaft technique and specifically relates to an inspection shaft for low slope drainage pipe.

Background

In the urban drainage pipeline construction process, due to the reason of topographic distribution or elevation limitation of upstream and downstream pipelines, drainage pipelines often have to be laid in a low-gradient mode due to economic and technical reasonableness considerations, so that impurity deposition in the pipelines is caused, and the overflowing capacity of the drainage pipelines is influenced in the past. During the torrential rain period, municipal administration rainwater pipeline can accomplish the siltation through short-term flow in the twinkling of an eye and wash, but the daily flow of sewage pipe is invariable basically, can't form similar rainwater pipeline's short-term flow in the twinkling of an eye, causes sludge deposit problem in the sewage pipe.

Therefore, a large amount of sludge is easily accumulated in the low-gradient drainage pipeline, and daily cleaning and maintenance in the pipeline are difficult.

SUMMERY OF THE UTILITY MODEL

The utility model provides an inspection shaft for low slope drainage pipe, the purpose is overcome above-mentioned technical defect at least, strengthens the instantaneous through flow of low slope pipeline, reduces the production of low slope drainage pipe deposit, guarantees the ability of overflowing of pipeline to produce the deposit in the inspection shaft, the daily maintenance of being convenient for is clearly drawn.

In order to realize the purpose of the utility model, the utility model provides a following technical scheme:

an inspection shaft for a low gradient drainage pipeline comprising: the sludge collection device comprises an inspection well body, and a chain type sludge scraper, an inverted siphon device and a sludge collection device which are positioned in the inspection well body, wherein sludge in the inspection well is conveyed to the sludge collection device through the chain type sludge scraper;

wherein the inverted siphon device is located in a downstream pipeline communicated with the inspection well.

Preferably, the inverted siphon device comprises a retaining wall, a U-shaped pipe and an extension pipe which are vertically arranged in the downstream pipeline, wherein the opening of the U-shaped pipe is downward, and the vertex of the U-shaped pipe is positioned at the top of the retaining wall, so that the U-shaped pipe is positioned on the retaining wall; the extension pipe is communicated with one end, far away from the inspection well, of the U-shaped pipe and is arranged along the length direction of the downstream pipeline, so that the water level of the water inlet position in the inverted siphon device is higher than the water outlet position of the inverted siphon device, and an inverted siphon effect is formed.

Preferably, the chain mud scraper includes the action wheel, follows driving wheel, chain and fixed mounting in scrape mud fill on the chain, the action wheel, follow the driving wheel rotation and set up in the inspection shaft, the chain around establishing the action wheel follow driving wheel is last, thereby through the actuating mechanism control the action wheel rotates and drives the chain motion.

Preferably, the sludge collecting device is positioned above the horizontal plane between the inverted siphon device and the chain type mud scraper and is used for receiving the sludge conveyed by the chain type mud scraper.

Preferably, the sludge collecting device comprises a fixing part and a receiving part fixed at the bottom of the fixing part and used for collecting sludge.

Preferably, the bottom in the inspection shaft is provided with a mud sinking groove, and the lower part of the chain type mud scraper is positioned in the mud sinking groove.

The utility model discloses an inspection shaft for low slope drainage pipe, its advantage is:

1. the inverted siphon device of the utility model can operate by means of water power without adding external power, thereby saving labor and cost;

2. in the integral structure of the utility model, a chain type mud scraper and an inverted siphon device are arranged in the inspection well, and the design of structures such as a mud sinking groove and the like in the inspection well is matched, so that under the condition of forming water level height difference, the inverted siphon device washes away the sediment in the pipeline, and the impurities such as sludge are only deposited in the mud sinking groove at one side of the inspection well, thereby facilitating the daily cleaning and maintenance;

3. realize the effect of falling the siphon through U type pipe, can overcome the easy shortcoming of blockking up of positive siphon, thereby the utility model discloses can not worry the operation jam problem.

4. The utility model discloses simple structure, effect are obvious, convenient operation, facilitate promotion.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a schematic longitudinal sectional view of an inspection well for a low-gradient drainage pipeline according to the present invention;

FIG. 2 is a schematic top view of the inspection well for low gradient drainage pipeline of the present invention;

wherein:

the inspection well comprises an inspection well body 1, a sludge settling groove 11, a chain type sludge scraper 2, a driving wheel 21, a driven wheel 22, a chain 23, a sludge scraper 24, an inverted siphon device 3, a retaining wall 31, a U-shaped pipe 32, an extension pipe 33, a sludge collecting device 4, a fixing piece 41, a containing piece 42, a downstream pipeline 5 and an upstream pipeline 6.

Detailed Description

The preferred embodiments of the present invention will be described hereinafter with reference to the accompanying drawings, and it should be understood that the preferred embodiments described herein are merely for purposes of illustration and explanation, and are not intended to limit the present invention.

According to fig. 1, fig. 2 show, the utility model relates to an inspection shaft for low slope drainage pipe: the inspection well comprises an inspection well body 1, and a chain type mud scraper 2, an inverted siphon device 3 and a sludge collecting device 4 which are positioned in the inspection well body 1, wherein sludge in the inspection well is conveyed to the sludge collecting device 4 through the chain type mud scraper 2; wherein, the inverted siphon device 3 is positioned in a downstream pipeline 5 communicated with the inspection well body 1.

The structural design of the device makes the water surface reach the automatic initiation back siphon behind the take off barricade 31 front and back height, increases the interior water body velocity of flow of low reaches pipeline 5, thereby will be difficult for forming the silt in low reaches pipeline 5. After a period of time, the sludge deposited at the bottom of the inspection well body 1 can be transported into the sludge collection device 4 through the chain type mud scraper 2, so that the subsequent treatment is convenient.

In a specific implementation process, the inverted siphon device 3 includes a retaining wall 31 vertically arranged in the downstream pipeline 5, a U-shaped pipe 32, and an extension pipe 33, wherein the U-shaped pipe 32 has a downward opening, and an upper portion located in a top end clamping groove close to the retaining wall 31, so that the U-shaped pipe 32 is located on the retaining wall 31; the extension pipe 33 is communicated with one end, far away from the inspection well body 1, of the U-shaped pipe 32 and is arranged along the length direction of the downstream pipeline 5, so that the water level of a water inlet in the inverted siphon device 3 is higher than that of a water outlet of the inverted siphon device, and inverted siphon is formed. In this process, the U-shaped pipe 32 is hung upside down on the retaining wall 31; the retaining wall 31 is used for retaining water in the inspection well body 1 from the upstream pipeline 6, so that the water moves from the U-shaped pipe 32 to the extension pipe 33 and then flows into the downstream pipeline 5.

In a specific implementation process, the chain type mud scraper 2 comprises a driving wheel 21, a driven wheel 22, a chain 23 and a mud scraping bucket 24 fixedly mounted on the chain 23, the driving wheel 21 and the driven wheel 22 are rotatably arranged in the inspection well body 1, the chain 23 is wound on the driving wheel 21 and the driven wheel 22, and the driving wheel 21 is controlled by a driving mechanism to rotate so as to drive the chain 23 to move. Related mechanisms which are not explicitly described in the chain type mud scraper 2 in the embodiment or structures which are not explicitly drawn in the drawings are all available to those skilled in the art according to conventional technical means, and therefore, are not described in detail.

Further, the sludge collecting device 4 is positioned above the horizontal plane between the inverted siphon device 3 and the chain type mud scraper 2, and is used for receiving the sludge transported by the chain type mud scraper 2, so that the sludge can be conveniently cleaned and fished in the future;

sludge collection device 4 includes mounting 41 and is fixed in the storage 42 that is used for collecting mud bottom mounting 41, promptly mounting 41 principle the one end of storage 42 is fixed in the inspection shaft body 1, make sludge collection device 4 hang in inspection shaft body 1, make things convenient for in the future clearly draw and maintain, change etc. handle.

Furthermore, bottom in the inspection well body 1 is equipped with heavy mud recess 11, just 2 lower parts of chain mud scraper are located in heavy mud recess 11, upstream pipeline 6 downstream pipeline 5 all is located more than the heavy mud recess 11 up end for fall siphon device 3 operation in-process produced mud concentrate on in the heavy mud recess 11, reduce mud and get into siphon device 3 along with water.

The utility model discloses a realize like this:

the impounding retaining wall 31 impounds a small flow of water, sludge is deposited in the sludge settling groove 11, when the impounding water surface exceeds a certain height, the inverted siphon device 3 automatically pumps water to the downstream, the instantaneous flow in the downstream pipeline 5 is increased, the flow speed of the water is increased, and sludge sediments in the downstream pipeline are washed away. After a period of time, silt quantity increases in the mud groove 11 that sinks, through opening chain mud scraper 2, scrapes mud bucket 24 and gets heavy mud from sinking mud groove 11, and chain 23 clockwise rotation to scrape the mud in the mud bucket 24 and get into mud collection device 4, play the effect of periodic silt removal.

This composite set is applicable to the little low slope drainage pipe of water flow volatility, sets up in inspection shaft body 1. Except that the chain type mud scraper 2 needs to be connected with power when scraping mud, other parts all run automatically.

The structures and principles not explicitly described in the present invention are available to those skilled in the art according to conventional technical means, and therefore are not described in detail.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. An inspection well for low-gradient drainage pipelines is characterized in that: the sludge cleaning device comprises an inspection well body (1), a chain type mud scraper (2), an inverted siphon device (3) and a sludge collecting device (4), wherein the chain type mud scraper (2), the inverted siphon device (3) and the sludge collecting device (4) are positioned in the inspection well body (1), the sludge in the inspection well body (1) is conveyed to the sludge collecting device (4) through the chain type mud scraper (2), and the inverted siphon device (3) flushes deposited sludge in a downstream pipeline (5) by utilizing the water level difference formed in the front and at the back of a retaining wall (31) in the inspection well body (1);

wherein the inverted siphon device (3) is positioned in a downstream pipeline (5) communicated with the inspection well.

2. The manhole for low-gradient drainage pipelines as claimed in claim 1, wherein: the inverted siphon device (3) comprises a retaining wall (31), a U-shaped pipe (32) and an extension pipe (33) which are vertically arranged in the downstream pipeline (5), wherein the opening of the U-shaped pipe (32) is downward, and the vertex of the U-shaped pipe is positioned at the top of the retaining wall (31), so that the U-shaped pipe (32) is positioned on the retaining wall (31); the extension pipe (33) is communicated with one end, far away from the inspection well body (1), of the U-shaped pipe (32) and is arranged along the length direction of the downstream pipeline (5), so that the position of a water inlet in the inverted siphon device (3) is higher than the position of a water outlet of the inverted siphon device, and an inverted siphon effect is formed.

3. The manhole for low-gradient drainage pipelines of claim 1, wherein: chain mud scraper (2) include action wheel (21), follow driving wheel (22), chain (23) and fixed mounting in scrape mud fill (24) on chain (23), action wheel (21) follow driving wheel (22) and rotate and set up in inspection shaft body (1), chain (23) are around establishing action wheel (21) follow driving wheel (22) on, through the actuating mechanism control thereby action wheel (21) rotate and drive chain (23) motion.

4. The manhole for low-gradient drainage pipelines of claim 3, wherein: the sludge collecting device (4) is positioned above the horizontal plane between the inverted siphon device (3) and the chain type mud scraper (2) and is used for receiving the sludge transported by the chain type mud scraper (2).

5. The manhole for low-gradient drainage pipelines as claimed in claim 3, wherein: the sludge collecting device (4) comprises a fixing piece (41) and a containing piece (42) which is fixed at the bottom of the fixing piece (41) and used for collecting sludge.

6. The manhole for low-gradient drainage pipelines according to any one of claims 3 to 5, wherein: the bottom in the inspection well body (1) is provided with a mud sinking groove (11), and the lower part of the chain type mud scraper (2) is positioned in the mud sinking groove (11).