Waterproof structure for connection of power well and power pipeline

Abstract

The utility model discloses a waterproof structure for connecting an electric power well and an electric power pipeline, which is characterized by comprising a waterproof plate hermetically mounted in a reserved pipeline window of the electric power well, a plurality of cable threading holes penetrating through the waterproof plate, and a pipeline connecting piece of which one end is in threaded connection with the cable threading holes and the other end is hermetically connected with the electric power pipeline, the waterproof sealing ring is arranged at a threaded connection interface of the pipeline connecting piece and the cable threading hole; the protective cover plate detachably covers a port of one side, far away from the pipeline connecting piece, of the cable threading hole; and the asphalt waterproof layer is coated at a seam between the waterproof plate and the reserved pipeline window. The utility model solves the problem that rain and sewage are easy to leak into an electric power well from a butt joint of an electric power pipeline due to the fact that effective waterproof plugging construction cannot be carried out due to the fact that the working space is narrow and a plurality of dead angles exist during construction of the electric power well pipeline.

Description

Technical Field

[0001] 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 and a power pipeline. Background Technique

[0002] The power pipeline project is one of the key projects to ensure the transmission of electricity from power plants to all corners of the city, and is also an important part of the construction of municipal road projects. With the advancement of the national urbanization process, the current power pipeline engineering technology has relatively matured, and the stability of power transmission has been greatly improved. Compared with the traditional overhead power pipelines, the underground power pipeline project has become a more favored choice in the current urban infrastructure construction.

[0003] However, there are still some challenges in the construction and maintenance of power pipelines. In the process of urbanization, problems such as serious water accumulation in power wells, pipeline seepage, and difficult maintenance may occur in the maintenance of urban underground pipelines. Seriously, it may lead to the corrosion of cables due to long-term moisture and leakage, posing a threat to the lives of maintenance personnel. The main body of the traditional power well is a reinforced concrete structure, which has a certain waterproof performance. However, due to the narrow working space at the connection between the power well and the pipeline, there are many dead corners that cannot be effectively sealed during construction. Over time, only relying on the waterproof treatment of the interface inside the power well cannot meet the sealing requirements, resulting in water, rainwater, or other substances leaking into the power well through the gaps, affecting the normal operation of the power inspection well.

[0004] Therefore, to meet the current maintenance requirements of urban underground pipelines, it is necessary to improve the technology and process of the waterproof treatment at the connection between the power well and the power pipeline. Content of the Utility Model

[0005] The technical problem solved by the utility model is to provide a waterproof structure for connecting a power well and a power pipeline, so as to solve the problem that during the construction of the power well pipeline, due to the narrow working space, there are many dead corners where effective waterproof sealing construction cannot be carried out, and thus rain and sewage are likely to leak from the interface of the power pipeline into the power well.

[0006] The utility model is realized through the following technical solutions.

[0007] A waterproof structure for connecting a power well and a power pipeline, characterized by comprising a waterproof plate hermetically installed in a reserved pipeline window of the power well, several cable threading holes penetrating through the waterproof plate, a pipeline connector with one end threadedly connected to the cable threading hole and the other end used for hermetically connecting to the power pipeline, a waterproof sealing ring arranged at the threaded connection interface between the pipeline connector and the cable threading hole, a protective cover plate detachably covering the port on the side of the cable threading hole away from the pipeline connector, and an asphalt waterproof layer coated at the joint between the waterproof plate and the reserved pipeline window.

[0008] Preferably, the pipeline connector includes a corrugated pipe section, a threaded pipe section arranged at one end of the corrugated pipe section and threadedly connected to the cable threading hole, and a power pipe connecting pipe section arranged at the other end of the corrugated pipe section for interference fit and sealing connection with the power pipeline.

[0009] Preferably, the threaded pipe section, the corrugated pipe section and the power pipe connecting pipe section are integrally connected and formed in sequence.

[0010] Preferably, the waterproof plate is made of a cast iron plate or a plastic plate.

[0011] Preferably, the power pipeline is hermetically connected to the pipeline connector by means of socket connection.

[0012] Preferably, the inner part of the cable threading hole is provided with threads, and the inner diameter of the cable threading hole is 5 - 10 cm larger than the outer diameter of the cable.

[0013] The beneficial effects of the present utility model are as follows: 1) By installing a waterproof plate in the pipeline window, the present utility model can isolate the power well from the external environment. At the same time, cable threading holes are reserved on the waterproof plate, reducing the construction gap at the connection between the power well and the power pipeline, effectively preventing the soil backfilled in the foundation pit during construction or groundwater, rainwater, etc. from polluting the inside of the power well, enhancing the anti-seepage and anti-pollution capabilities of the power well, and also reducing the input of labor and materials for bricklaying and plugging the reserved window of the power well.

[0014] 2) By connecting each component in the way of socket connection and threaded connection, the present utility model reduces the construction difficulty of the connection ports between the power well and each pipeline, and can improve the construction efficiency.

[0015] 3) During the construction of the present utility model, the on-site construction freedom is higher and the construction is more convenient. When laying the power pipeline, the waterproof plate is connected to all types of power pipelines without dead angles through the pipeline connector, avoiding the pollution of the power well by construction materials during the pipeline encasement construction, and also reducing the occurrence probability of waterproof quality problems caused by objective factors such as the quality of construction personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front view structural schematic diagram of the present utility model;

[0017] Figure 2 is Figure 1 the sectional view at A-A in

[0018] Figure 3 is Figure 1 the enlarged schematic view of the local structure in

[0019] Figure 4 the left view of the waterproof board in the present utility model;

[0020] Figure 5 the front view structural schematic diagram of the pipeline connector in the present utility model;

[0021] The meanings of the various identifications in the above figures are as follows: 1 - power well, 2 - waterproof board, 3 - pipeline connector, 301 - corrugated pipe section, 302 - threaded pipe section, 303 - power pipe connection pipe section, 4 - waterproof sealing ring, 5 - power pipeline, 6 - pipeline window, 7 - cable threading hole, 8 - protective cover plate, 9 - asphalt waterproof layer. Specific embodiments

[0022] Next, the technical solution of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] A waterproof structure for connecting a power well and a power pipeline. Please refer to Figures 1 to 5 , which includes a waterproof board 2 hermetically installed in the reserved pipeline window 6 of the power well 1, several cable threading holes 7 penetrating through the waterproof board 2, a pipeline connector 3 with one end threadedly connected to the cable threading hole 7 and the other end used for hermetically connecting to the power pipeline 5, a waterproof sealing ring 4 arranged at the threaded connection interface between the pipeline connector 3 and the cable threading hole 7, a protective cover plate 8 detachably covering the port on the side of the cable threading hole 7 away from the pipeline connector 3, and an asphalt waterproof layer 9 coated at the joint between the waterproof board 2 and the pipeline window 6;

[0025] Based on the above structure, the utility model can be constructed in two ways: First, after the construction of the main structure of the power well is completed, the waterproof plate 2 is directly and tightly installed in the pipeline window 6 reserved in the power well 1, and construction glue is filled and poured between the circumferential side of the waterproof plate 2 and the pipeline window 6 for sealing connection and reinforcement. After the waterproof plate 2 is firmly installed, the protective cover plate 8 is installed. Then, a waterproof sealing ring 4 is installed at one end of the pipeline connector 3, and the end of the pipeline connector 3 with the waterproof sealing ring 4 installed is threadedly connected to the cable threading hole 7. Finally, an asphalt waterproof layer 9 is coated in a circle at the joint between the waterproof plate 2 and the pipeline window 6, thus completing the installation of the structure of the utility model. After that, the power pipeline 5 is hermetically connected to the other end of the pipeline connector 3; Second, when installing the steel bars of the power well, the waterproof plate 2 is pre-embedded and installed at the position of the pipeline window reserved in the power well. After the installation of the waterproof plate 2 is completed, the formwork is installed and concrete is poured. After the concrete reaches the strength, the subsequent construction is carried out in the same way as the first method; Based on the above, it can be seen that in the utility model, the waterproof plate 2 is hermetically installed in the pipeline window 6, and it is integrated with the well wall of the power well 1 without generating gaps. Moreover, the pipeline connector 3 is hermetically connected to the power pipeline 5, and the pipeline connector 3 is connected to the waterproof plate 2 through the cable threading hole 7. The threaded connection interface between the two is blocked by the waterproof sealing ring 4 for clearance, so as to prevent water, pollutants, etc. outside the power well from seeping into the power well through the joint at the pipeline window position; In addition, for the situation where the power pipeline cannot be laid immediately after the construction of the main body of the power well is completed, but the foundation pit of the power well is backfilled first, before backfilling the foundation pit, the cable threading hole 7 in the waterproof plate 2 is blocked by the protective cover plate 8, so that the power well is in a closed state, preventing foreign matters such as backfill soil from falling into the power well during backfilling, so as to reduce the subsequent well cleaning task of the power well.

[0026] Further, in a preferred embodiment, the pipeline connector 3 includes a corrugated pipe section 301, a threaded pipe section 302 provided at one end of the corrugated pipe section 301 and threadedly connected to the cable threading hole 7, and a power pipe connection pipe section 303 provided at the other end of the corrugated pipe section 301 for interference fit and sealing connection with the power pipeline 5; Through the above structural arrangement, since the corrugated pipe section 301 can be bent to a certain extent, the pipeline connector 3 can be torsionally deformed within its space, which can solve the problem that it is difficult to align and insert the power pipeline and the power well with an included angle.

[0027] In order to ensure the overall sealing performance and strength of the pipeline connector, further, in a preferred embodiment, the threaded pipe section 302, the corrugated pipe section 301 and the power pipe connection pipe section 303 are integrally connected and formed in sequence.

[0028] Further, in a preferred embodiment, the power pipeline 5 is hermetically connected to the pipeline connector 3 by means of socket connection, so as to improve the construction efficiency and reduce the construction difficulty.

[0029] Further, in a preferred embodiment, the waterproof plate 2 is made of cast iron plate or plastic plate.

[0030] Further, in a preferred embodiment, the waterproof seal ring 4 is made of an elastic waterproof material, and the waterproof seal ring 4 is used to fill the gap between the pipe connector and the cable threading hole 7.

[0031] The specifications of the cable threading hole need to be set according to the project requirements. Further, in a preferred embodiment, the inner part of the cable threading hole 7 is provided with threads, and the inner diameter of the cable threading hole 7 is 5 - 10 cm larger than the outer diameter of the cable, so as to facilitate subsequent cable threading construction.

Claims

1. A waterproof structure for connecting a power well and a power pipeline, characterized in that: The utility model comprises a waterproof plate (2) sealed and installed in a reserved pipeline window (6) of an electric power well (1), a plurality of cable threading holes (7) provided through the waterproof plate (2), a pipeline connector (3) having one end threadedly connected to the cable threading hole (7) and the other end used for sealing connection with an electric power pipeline (5), a waterproof sealing ring (4) provided at the threaded connection interface between the pipeline connector (3) and the cable threading hole (7), a protective cover plate (8) detachably covering a port on one side of the cable threading hole (7) away from the pipeline connector (3), and an asphalt waterproof layer (9) coated at the joint between the waterproof plate (2) and the pipeline window (6).

2. A waterproof structure for connecting a power well and a power pipeline as claimed in claim 1, characterized in that: The pipe connector (3) comprises a bellows section (301), a threaded pipe section (302) arranged at one end of the bellows section (301) and threadedly connected to the cable threading hole (7), and an electric pipe connecting pipe section (303) arranged at the other end of the bellows section (301) and used for interference fit sealing connection with the electric pipe (5).

3. A waterproof structure for connecting a power well and a power pipeline as claimed in claim 2, characterized in that: The threaded pipe section (302), the corrugated pipe section (301) and the power pipe connecting pipe section (303) are integrally connected in sequence.

4. A waterproof structure for connecting a power well and a power pipeline as claimed in claim 1, characterized in that: The waterproof plate (2) is made of cast iron plate or plastic plate.

5. A waterproof structure for connecting a power well and a power pipeline as claimed in claim 1, characterized in that: The power pipeline (5) is sealedly connected to the pipeline connector (3) by means of a socket-and-spigot connection.

6. A waterproof structure for connecting a power well and a power pipeline as claimed in claim 1, characterized in that: The cable threading hole (7) is provided with a thread inside, and the inner diameter of the cable threading hole (7) is 5-10 cm larger than the outer diameter of the cable.

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