Waterproof structure for connection of electric power well and electric power pipeline
Technical Field
The utility model belongs to the technical field of municipal engineering power and communication engineering, and particularly relates to a waterproof structure for connecting a power well with a power pipeline.
Background
The power pipeline engineering is one of key engineering for ensuring that power is transmitted from a power plant to all corners of a city, and is also an important component for municipal road engineering construction. With the advancement of urban process in China, the current power pipeline engineering technology is relatively mature, and the stability of power transmission is greatly improved. Underground power pipeline engineering is currently a favored option in urban infrastructure construction over traditional overhead power pipelines.
However, some challenges remain during construction and maintenance of power pipelines. In the urban process, the problems of serious water accumulation in an electric well, water seepage of the pipeline, difficult maintenance and the like of an underground pipeline in the city can occur in the maintenance aspect, and the serious problems can lead to the phenomena of electric leakage caused by long-term damp and corrosion of the cable, thereby threatening the life safety of maintenance personnel. The main part of traditional electric power well is reinforced concrete structure, possesses certain waterproof performance, however the junction of electric power well and pipeline is because the operation space is narrow and small, has more dead angles and can't carry out effectual shutoff when being under construction, only relies on the inside waterproof treatment of electric power well to interface department to can't satisfy the requirement of shutoff along with the time lapse to in leading to water, rainwater, or other substances leak from the gap and get into the electric power well, influence the normal operating of electric power inspection and repair well.
Therefore, in order to meet the maintenance requirements of the urban underground pipeline at present, the waterproof treatment at the joint of the electric well and the electric pipeline needs to be technically and technically improved.
Disclosure of utility model
The utility model solves the technical problem of providing a waterproof structure for connecting an electric power well and an electric power pipeline, so as to solve the problem that rain and sewage easily leak into the electric power well from an opposite joint of the electric power pipeline due to the fact that more dead angles exist and effective waterproof plugging construction cannot be performed due to narrow operation space when the electric power pipeline is constructed.
The utility model is realized by the following technical scheme.
The utility model provides a waterproof construction that electric power well and electric power pipeline are connected, a serial communication port, including sealing mounting in the waterproof board of electric power well reservation pipeline window, a plurality of cable through wires hole that runs through the waterproof board and set up, one end and cable through wires hole threaded connection, the other end is used for with electric power pipe sealing connection's pipeline connecting piece, set up in the waterproof sealing washer of pipeline connecting piece and cable through wires hole threaded connection interface department, can dismantle the cover and keep away from the protective cover board of pipeline connecting piece one side port in the cable through wires hole, the asphalt waterproof layer of coating in waterproof board and reservation pipeline window seam crossing.
Preferably, the pipeline connecting piece comprises a corrugated pipe section, a threaded pipe section arranged at one end of the corrugated pipe section and in threaded connection with the cable threading hole, and a power pipe connecting pipe section arranged at the other end of the corrugated pipe section and in interference fit and sealing connection with the power pipeline.
Preferably, the threaded pipe section, the corrugated pipe section and the power pipe connecting pipe section are sequentially integrally connected and formed.
Preferably, the waterproof board is processed by adopting a cast iron board or a plastic board.
Preferably, the electric pipeline is in sealing connection with the pipeline connecting piece in a socket joint mode.
Preferably, threads are arranged in the cable threading hole, and the inner diameter of the cable threading hole is 5-10cm larger than the outer diameter of the cable.
The utility model has the beneficial effects that 1) the waterproof board is arranged on the pipeline window, so that the electric power well can be isolated from the external environment, meanwhile, the cable threading hole is reserved on the waterproof board, the construction gap for connecting the electric power well and the electric power pipeline is reduced, the pollution of soil body backfilled by the pit during construction to the inside of the electric power well caused by underground water, rainwater and the like can be effectively prevented, the anti-leakage and anti-pollution capability of the electric power well is enhanced, and the investment of labor and materials for bricking and plugging the reserved window of the electric power well is reduced.
2) According to the utility model, each component is connected in a socket connection and threaded connection mode, so that the construction difficulty of the electric well and each pipeline connection port is reduced, and the construction efficiency can be improved.
3) When the waterproof board is constructed, the degree of freedom of site construction is higher, the construction is more convenient, no dead angle connection between the waterproof board and the full-size power pipeline is realized through the pipeline connecting piece during the construction of the power pipeline, the pollution of construction materials to the power well during the encapsulation construction of the pipeline is avoided, and the occurrence probability of waterproof quality problems caused by objective factors such as quality of constructors is reduced.
Drawings
FIG. 1 is a schematic diagram of a front view of the present utility model;
FIG. 2 is a cross-sectional view at A-A in FIG. 1;
FIG. 3 is an enlarged schematic view of a part of the structure of FIG. 1;
fig. 4 is a left side view of the flashing of the present utility model;
FIG. 5 is a schematic diagram of the front view of the pipe connector according to the present utility model;
The meaning of each mark in the figure is a 1-electric well, a 2-waterproof board, a 3-pipeline connecting piece, a 301-corrugated pipe section, a 302-threaded pipe section, a 303-electric pipe connecting pipe section, a 4-waterproof sealing ring, a 5-electric pipeline, a 6-pipeline window, a 7-cable threading hole, an 8-protective cover board and a 9-asphalt waterproof layer.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1 to 5, the waterproof structure for connecting an electric power well and an electric power pipeline comprises a waterproof board 2 which is arranged in a reserved pipeline window 6 of the electric power well 1 in a sealing manner, a plurality of cable threading holes 7 which are arranged through the waterproof board 2, a pipeline connecting piece 3, a waterproof sealing ring 4, a protective cover plate 8 and an asphalt waterproof layer 9, wherein one end of the pipeline connecting piece 3 is in threaded connection with the cable threading holes 7, the other end of the pipeline connecting piece 3 is in sealed connection with the electric power pipeline 5, the waterproof sealing ring 4 is arranged at a threaded connection interface of the pipeline connecting piece 3 and the cable threading holes 7, the protective cover plate 8 is detachably covered on a port of one side of the cable threading holes 7 far away from the pipeline connecting piece 3, and the asphalt waterproof layer 9 is coated at a joint of the waterproof board 2 and the pipeline window 6;
Based on the structure, the construction can be carried out in two ways, namely, after the construction of the main structure of the electric power well is finished, the waterproof board 2 is directly and hermetically installed in a pipeline window 6 reserved in the electric power well 1, a building glue is filled between the periphery of the waterproof board 2 and the pipeline window 6 for sealing connection and reinforcement, a protective cover plate 8 is installed after the waterproof board 2 is firmly installed, a waterproof sealing ring 4 is installed at one end of a pipeline connecting piece 3, one end of the pipeline connecting piece 3, which is provided with the waterproof sealing ring 4, is in threaded connection with a cable threading hole 7, and finally, an asphalt waterproof layer 9 is coated at the joint of the waterproof board 2 and the pipeline window 6, so that the installation of the structure of the utility model is finished, and then the electric power pipeline 5 is hermetically connected with the other end of the pipeline connecting piece 3; secondly, when the electric power well reinforcing steel bar is installed, the waterproof plate 2 is pre-buried and installed at the position of a reserved pipeline window of the electric power well, a template is installed and concrete is poured after the waterproof plate 2 is installed, after the concrete reaches the strength, the subsequent construction is carried out according to the same method as the first mode, based on the fact that the waterproof plate 2 is installed in the pipeline window 6 in a sealing mode, no gap is generated when the waterproof plate 2 is integrated with the wall of the electric power well 1, the pipeline connecting piece 3 is connected with the electric power pipeline 5 in a sealing mode, the pipeline connecting piece 3 is connected with the waterproof plate 2 through a cable threading hole 7, gap blocking is carried out at a threaded connecting interface of the pipeline connecting piece 3 and the waterproof plate 2 by adopting a waterproof sealing ring 4, therefore water, pollutants and the like outside the electric power well can be prevented from penetrating into the electric power well from the position of the pipeline window, in addition, in the situation that the electric power pipeline cannot be immediately paved after the construction of the electric power well main body is completed, but a foundation pit is backfilled first before the foundation pit is backfilled, the cable threading hole 7 in the waterproof board 2 is plugged through the protective cover board 8, so that the electric power well is in a closed state, foreign matters such as backfill soil and the like are prevented from falling into the electric power well during backfilling, and the well cleaning task of the subsequent electric power well is reduced.
Further, in a preferred embodiment, the pipe connector 3 comprises a corrugated pipe section 301, a threaded pipe section 302 disposed at one end of the corrugated pipe section 301 and in threaded connection with the cable threading hole 7, and a power pipe connecting pipe section 303 disposed at the other end of the corrugated pipe section 301 and in interference fit and sealing connection with the power pipe 5.
In order to ensure the overall tightness and strength of the pipe connection, further, in a preferred embodiment, the threaded pipe section 302, the corrugated pipe section 301 and the power pipe connection section 303 are integrally connected in sequence.
Further, in a preferred embodiment, the electric pipeline 5 is in sealing connection with the pipeline connecting piece 3 in a socket joint manner, so that the construction efficiency can be improved, and the construction difficulty can be reduced.
Further, in a preferred embodiment, the waterproof board 2 is manufactured using cast iron or plastic board.
Further, in a preferred embodiment, the waterproof sealing ring 4 is made of a waterproof material with elasticity, and the waterproof sealing ring 4 is used for filling a gap between the pipe connection piece and the cable threading hole 7.
The specification of the cable threading hole is required to be set according to engineering requirements, and further, in a preferred embodiment, threads are arranged in the cable threading hole 7, and the inner diameter of the cable threading hole 7 is larger than the outer diameter of the cable by 5-10cm, so that subsequent cable threading construction is facilitated.