CN209873999U - City utility tunnel drainage pipe inserts a mouth tube coupling - Google Patents
City utility tunnel drainage pipe inserts a mouth tube coupling Download PDFInfo
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- CN209873999U CN209873999U CN201920008737.6U CN201920008737U CN209873999U CN 209873999 U CN209873999 U CN 209873999U CN 201920008737 U CN201920008737 U CN 201920008737U CN 209873999 U CN209873999 U CN 209873999U
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Abstract
The utility model discloses a: a pipe joint of a drainage pipe access port of an urban comprehensive pipe gallery comprises a main pipe section, wherein the head and the tail of the main pipe section are connected in a drainage pipe, a branch pipe is connected to the main pipe section, and the extension direction of the branch pipe is horizontal or the branch pipe is inclined upwards by taking the downstream end as a low point; the main pipe section is provided with an inspection opening, and the opening position of the inspection opening is positioned above the opening position of the branch pipe on the main pipe section in the circumferential direction or above the side. The utility model has the advantages that: the pipe rack has the advantages of saving space in the pipe rack, being convenient to install, easy to overhaul and reliable in sealing.
Description
Technical Field
The utility model belongs to the technical field of municipal drainage and specifically relates to a gravity flow drainage pipe in city utility tunnel specifically is an insert mouthful tube coupling that is used for drainage pipe tributary to insert.
Background
The branch sewage access of the traditional outdoor buried drain pipe generally adopts the form of an inspection well. The inspection well mainly comprises a well cover, a shaft, a water inlet pipe, a water outlet pipe and the like, wherein the water outlet pipe penetrates through the shaft at a position close to the bottom of the shaft, and the middle of the shaft is interrupted or in the form of a flow groove. The height of an access pipe of the branch sewage is larger than that of a drainage main pipe, and the branch sewage falls into a shaft and is converged into a drainage pipe main flow. The mode can well solve the connection problem caused by the difference of the direction, elevation, flow and the like of the main flow and the branch, and the application is most common. Other connection modes, such as tee joint, are rarely directly used for branch sewage access in a gravity flow drainage pipeline because of high inspection and maintenance difficulty, difficult liquid level control and the like.
The city utility tunnel is provided with various municipal pipelines, which has high construction cost and limited space. Domestic cases of bringing the gravity flow sewage pipe into the comprehensive pipe gallery are few, and when the sewage pipe is brought into the comprehensive pipe gallery, a sewage inspection well is arranged to meet the requirements of access of sewage pipe branch pipes, pipeline dredging, ventilation and the like. If according to traditional outdoor drainage inspection shaft's setting method, because the inspection shaft size is great, when putting into utility tunnel it is with it, need enlarge the piping lane section, also bring the difficulty for the operation management of piping lane simultaneously. Chinese patent document CN206143900U discloses in 2017, 5.3.2017, "a sewage inspection well structure suitable for use in a utility tunnel," which includes an air pipe, a sewage inspection well, an access hole and a sewage main pipe, wherein the access hole is fixed on any one side of the outer circumferential surface of the sewage inspection well and is communicated with the sewage inspection well, the air pipe is fixed at the upper end of the sewage inspection well and is communicated with the sewage inspection well, and the sewage main pipe penetrates through the sewage inspection well and is arranged perpendicular to the sewage inspection well; the utility model has the advantages of its simple structure not only, and the installation is simple and easy convenient, has solved sewage pipe and has brought the difficult technical point of utility tunnel into. This patent arranges the inspection shaft in the inside of utility tunnel corridor, and on the inspection shaft circumference was arranged in to the access hole, structural more compacter than ordinary buried inspection shaft, nevertheless occupied the piping lane space still more, the construction installation degree of difficulty is great relatively.
Because city utility tunnel's corridor inner space is limited, is difficult to expand the construction like ground, and aforementioned prior art scheme uses traditional access tube coupling, has that the space occupies the defect big, that the construction is difficult. It is therefore necessary to design a dedicated access port coupling for the drain conduit in the pipe gallery.
Disclosure of Invention
Based on above problem, the utility model provides a city utility tunnel drainage pipe inserts a mouth tube coupling has saving piping lane inner space, the installation is convenient, easy maintenance, sealed reliable advantage.
In order to realize the purpose of the invention, the utility model adopts the following technical scheme: a pipe joint of a drainage pipe access port of an urban comprehensive pipe gallery comprises a main pipe section, wherein the head and the tail of the main pipe section are connected in a drainage pipe, a branch pipe is connected to the main pipe section, and the extension direction of the branch pipe is horizontal or the branch pipe is inclined upwards by taking the downstream end as a low point; the main pipe section is provided with an inspection opening, and the opening position of the inspection opening is positioned above the opening position of the branch pipe on the main pipe section in the circumferential direction or above the side.
The pipe joint of the connecting port of the drainage pipeline of the urban comprehensive pipe gallery designed by the scheme is the same as the pipe joint of the existing drainage pipeline in material, so that the cost is kept low; the pipe diameter is the same as the pipe joint of the existing drainage pipeline, so that the head and the tail of the pipe can be completely and hermetically connected into the existing drainage pipeline, and leakage cannot occur. The pipe joint comprises a main pipe section, and generally, the main pipe section adopts the same circular pipe scheme as the pipe joint of the existing drainage pipeline. The drainage pipeline formed by connecting the square pipes or the special pipes is rare, and if the drainage pipeline is formed by connecting the square pipes or the special pipes, a person skilled in the art can apply the technical scheme to the drainage pipeline formed by connecting the square pipes or the special pipes after adaptive modification. The main pipe section is connected with a branch pipe, and the extension direction of the branch pipe is horizontal or the branch pipe inclines upwards with the downstream end as a low point. The other end of the branch pipe is connected with the inspection well outside the corridor, so that the function of guiding sewage into the drainage pipeline is achieved, the angle needs to be set, and water flow is prevented from flowing backwards. The main pipe section is provided with an inspection opening, and the opening position of the inspection opening is positioned above the opening position of the branch pipe on the main pipe section in the circumferential direction or above the side. The inspection opening is an important structural part and is closed by using a sealing piece in a normal state, and the sealing piece can be opened to enter the inspection opening during construction so as to carry out sealing treatment on the inner side of the joint of the branch pipe and the main pipe section; when needed, the inspection opening can be opened to inspect the joint of the branch pipe and the main pipe section; or sampling of sewage from an off-shore manhole, etc. To the injecing of inspection opening direction position, firstly for being closer with the connecting portion of branch pipe and main part pipeline section, two because the drain pipe is pressureless gravity pipe, the pipe diameter is great, full tub of drainage state rarely appears, consequently in the vast majority time, the inboard of inspection opening place pipe wall is located the surface of water above, and this has also made things convenient for the operation. The axes of the branch pipe and the main pipe section can be intersected or not intersected, the projection angle of the axes of the branch pipe and the main pipe section to the horizontal plane can be an acute angle, and the branch pipe inclines to the downstream side of the main pipe section or a right angle.
Preferably, the pipe diameter of the branch pipe is smaller than that of the main pipe section. The main body pipe section is a part of the drain pipe and is used for containing accumulated water collected by the whole pipeline, the sewage quantity of the single inspection well outside the corridor is relatively limited, and the pipe diameter of the required branch pipe is small.
Preferably, the axial direction of the branch pipe is perpendicular to the axial direction of the main body pipe section. This design reduces the length of the connecting portion of the branch pipe and the main pipe section, thus facilitating production and also structurally enhancing the sealing effect of the connecting portion.
There are two options for the arrangement of the branch pipes, which can be determined by the person skilled in the art according to the design requirements.
Preferably, the main body pipe section is a circular pipe; the axial direction of the branch pipe is parallel to the tangential direction of the main pipe section. By using the design, when a large amount of sewage gushes in the branch pipe, the sewage can be guided to the main pipe section and then forms rotational flow along the inner wall of the main pipe section, so that the sediment at the bottom of the pipe in the downstream area of the branch pipe connecting part can be effectively impacted, the drain pipe is self-cleaned, and silting is avoided.
Preferably, the main pipe section is a circular pipe; the branch pipe is divided into an upstream section and a downstream section, and the downstream section of the branch pipe is inclined upwards by taking a downstream end as a low point; the axial direction of the upstream section of the branch pipe is parallel to the tangential direction of the main pipe section. The downstream section of the branch pipe is inclined upwards by taking the downstream end as a low point, so that the axis of the downstream section deflects towards the circle center of the section circumference of the main pipe section, the length of the connecting part of the branch pipe and the main pipe section is reduced, the production is facilitated, and the sealing effect of the connecting part can be improved structurally. The upstream section of the branch pipe may also be characterized as a section of an arc pipe.
To sum up, the beneficial effects of the utility model are that: the pipe rack has the advantages of saving space in the pipe rack, being convenient to install, easy to overhaul and reliable in sealing.
Drawings
Fig. 1 is a schematic view of the application of the present invention, wherein the pipe gallery is not shown.
Fig. 2 is a schematic cross-sectional view of fig. 1.
Fig. 3 is a front view of embodiment 1 of the present invention.
Fig. 4 is a perspective view of fig. 3.
Fig. 5 is a front view of embodiment 2 of the present invention.
Fig. 6 is a perspective view of fig. 5.
Fig. 7 is an axial view of fig. 5.
Wherein: 1 main part pipeline section, 2 branch pipes, 3 inspection hatches, 4 corridor outer inspection wells, 5 converge to the butt joint pipe, 6 branch pipe joints, 7 ordinary straight tubes, 8 pipeline buttress, 9 straight tube joints, 10 pipe gallery bodies, 21 downstream section, 22 upper reaches section.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
Example 1
Embodiment 1 is an urban utility tunnel drainage pipe access mouth union coupling. As shown in fig. 3 and 4, the pipe joint of the access port of the urban comprehensive pipe gallery drainage pipeline of the embodiment comprises a cylindrical main pipe section 1, the head and the tail of the main pipe section are connected in a horizontally arranged drainage pipeline, and the middle part of the main pipe section is connected with a branch pipe 2. The extension direction of the branch pipe is horizontal or the branch pipe is inclined upwards by taking the downstream end as a low point, and the branch pipe extends horizontally in the example. The axial direction of the branch pipe is perpendicular to the axial direction of the main body pipe section, and the axial direction of the branch pipe is parallel to the tangential direction of the main body pipe section. The pipe diameter of the branch pipe is smaller than that of the main pipe section. The main pipe section is provided with an inspection opening 3, and the opening position of the inspection opening is positioned above the opening position of the branch pipe on the main pipe section in the circumferential direction or in the side direction. The inspection opening is provided with a flange interface, and is closed by a sealing cover under normal state and can be opened as required.
As shown in fig. 1 and 2, the city utility tunnel drainage pipeline access pipe joint of the embodiment is applied to the construction of a city utility tunnel. Utility tunnel includes the piping lane corridor body 10, and the internal drainage pipe that has laid of piping lane. The drainage pipeline is formed by connecting a plurality of common straight pipes 7 end to end through straight pipe joints 9. All the common straight pipes are erected on the pipeline support piers 8, and one section of the drainage pipeline is the pipe section of the drainage pipeline access port of the urban comprehensive pipe gallery. The upper end opening of inspection shaft outside corridor is on ground, and what the lower extreme side extended is provided with joins in butt joint pipe 5, joins in butt joint pipe and passes through branch pipe joint 6 and the upstream end sealing connection of branch pipe. The sewage collected by the inspection well outside the corridor flows through the inspection well outside the corridor, enters the main pipe section through the branch pipe, and can be discharged by the drainage pipeline. If necessary, the inspection opening can be opened for maintenance and repair. In the whole process of sewage flowing, the sewage flows from high to low all the time, so that backflow and stagnation cannot occur, and the sewage in the water cannot be deposited in a pipeline of the path.
Example 2
Embodiment 2 is another kind of city utility tunnel drainage pipe access mouth union coupling. As shown in fig. 5, 6 and 7, in the branch example, the branch pipe is divided into two sections, i.e., an upstream section and a downstream section, and the downstream section 21 of the branch pipe is inclined upward with the downstream end as a low point; the axial direction of the upstream section 22 of the branch pipe is parallel to the tangential direction of the main body pipe section, so that the branch pipe of this example is not a straight pipe, but the axis of the downstream section is slightly offset towards the centre of the circumference of the cross-section of the main body pipe section. Compared with embodiment 1, the connecting part of the branch pipe and the main pipe section is shorter, so that the manufacture is easier and the sealing effect of the product is better.
The same as in example 1.
Claims (5)
1. A pipe joint of a drainage pipe access port of an urban comprehensive pipe gallery comprises a main pipe section (1) which is connected with a drainage pipe end to end, and is characterized in that a branch pipe (2) is connected to the main pipe section, and the extension direction of the branch pipe is horizontal or is inclined upwards by taking the downstream end as a low point; the main body pipe section is provided with an inspection port (3), and the opening position of the inspection port is positioned above the opening position of the branch pipe on the main body pipe section in the circumferential direction or above the side.
2. The urban utility tunnel drainage pipeline access port pipe joint according to claim 1, wherein the pipe diameter of the branch pipe is smaller than that of the main pipe section.
3. The urban comprehensive pipe gallery drainage pipeline access pipe joint as claimed in claim 1 or 2, wherein the axial direction of the branch pipe is perpendicular to the axial direction of the main pipe section.
4. The urban comprehensive pipe gallery drainage pipeline access port pipe joint as claimed in claim 3, wherein the main pipe section is a circular pipe; the axial direction of the branch pipe is parallel to the tangential direction of the main pipe section.
5. The urban comprehensive pipe gallery drainage pipeline access port pipe joint as claimed in claim 3, wherein the main pipe section is a circular pipe; the branch pipe is divided into an upstream section and a downstream section, and the downstream section (21) of the branch pipe is inclined upwards by taking the downstream end as a low point; the axial direction of the upstream section (22) of the branch pipe is parallel to the tangential direction of the main pipe section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920008737.6U CN209873999U (en) | 2019-01-03 | 2019-01-03 | City utility tunnel drainage pipe inserts a mouth tube coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920008737.6U CN209873999U (en) | 2019-01-03 | 2019-01-03 | City utility tunnel drainage pipe inserts a mouth tube coupling |
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| Publication Number | Publication Date |
|---|---|
| CN209873999U true CN209873999U (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920008737.6U Active CN209873999U (en) | 2019-01-03 | 2019-01-03 | City utility tunnel drainage pipe inserts a mouth tube coupling |
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| CN (1) | CN209873999U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058481A (en) * | 2020-01-08 | 2020-04-24 | 武汉致远市政建设工程有限公司 | Comprehensive pipe gallery system based on sponge city and construction method thereof |
-
2019
- 2019-01-03 CN CN201920008737.6U patent/CN209873999U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058481A (en) * | 2020-01-08 | 2020-04-24 | 武汉致远市政建设工程有限公司 | Comprehensive pipe gallery system based on sponge city and construction method thereof |
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