Connection node of electric power calandria and inspection well

By using a combination of reinforced concrete well body, climbing handrails and corrugated pipes at the connection node between the power duct and the inspection well, the problems of poor sealing and fixation were solved, achieving stable connection and structural reinforcement, and improving construction safety.

CN224135351UActive Publication Date: 2026-04-17JINAN ZHONGCHENGFA CONSTR MANAGEMENT GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINAN ZHONGCHENGFA CONSTR MANAGEMENT GRP CO LTD
Filing Date
2025-06-10
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Poor sealing and fixation at the connection point between the power duct and the inspection well lead to unstable connection.

Method used

The well body is made of reinforced concrete, with climbing handrails on the inner wall and corrugated pipes installed in the connecting channels. The outer wall of the corrugated pipes is equipped with sealing and fixing rings, which are fixed by threaded connection. The corrugated shape provides sealing and fixing effect.

Benefits of technology

It improves the connection stability and overall structural strength of power ducts and inspection wells, enhances construction safety, and the corrugated pipe material is lightweight and easy to lay, with good corrosion resistance and pressure resistance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a connection node of an electric power calandria and an inspection well, which comprises a well body, and a well mouth is arranged at the top end of the well body. According to the connecting node of the electric power calandria and the inspection well, through the arrangement of the sealing rubber ring and the fixing rubber ring, when a corrugated pipe used by the electric power calandria is spliced with the inspection well, the sealing rubber ring is arranged outside the corrugated pipe in a sleeving mode, and the sealing rubber ring can be fixed through the corrugated shape on the corrugated pipe; similarly, a fixing effect can be provided for the fixing rubber ring through the corrugation shape on the corrugated pipe, the corrugated pipe at the inner end of the well body can be fixed to the connecting channel, the corrugated pipe is prevented from falling off from the connecting channel, and the sealing effect is achieved. And meanwhile, the corrugated pipes are made of polyethylene materials, so that the pipeline is light in weight, easy to lay, good in corrosion resistance and high in compression resistance.
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Description

Technical Field

[0001] This utility model relates to the technical field of power inspection wells, specifically to the connection node between power pipelines and inspection wells. Background Technology

[0002] Inspection wells are installed to facilitate the maintenance and installation of underground infrastructure such as power supply, water supply, drainage, sewage, communications, cable TV, gas pipes, and street light lines in cities. They are generally located at pipe intersections, bends, changes in pipe diameter or slope, and at regular intervals on straight pipe sections. They are designed to facilitate the periodic inspection of ancillary structures, hence the urgent need for connection points between power conduits and inspection wells.

[0003] Currently, the connection points between the power conduit and the inspection well are problematic. Since the inspection well is an underground facility with high humidity, the connection points between the power conduit and the inspection well have issues with sealing and stability. Utility Model Content

[0004] The purpose of this utility model is to provide a connection node between power ducts and inspection wells to solve the problem mentioned in the background art of the poor sealing and fixation of the connection point between the power ducts and inspection wells due to the fact that inspection wells are underground facilities with high humidity.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a connection node between an electric power duct and an inspection well, including a well body, a well opening at the top of the well body, a fixing block on the inner wall of the well body, a climbing handrail installed at the front end of the fixing block, a fixing rod at the rear end of the climbing handrail, a connecting channel at both ends of the inner wall of the well body, a corrugated pipe installed on the inner wall of the connecting channel, a sealing rubber ring on the outer wall of the corrugated pipe, and a fixing rubber ring at one end of the outer wall of the corrugated pipe.

[0006] Preferably, the well body is made of reinforced concrete.

[0007] Preferably, the climbing handrail is threadedly connected to the fixing block via a fixing rod, and both the outer wall of the fixing rod and the inner wall of the fixing block are threaded.

[0008] Preferably, the inner wall of the sealing ring is tightly fitted to the outer wall of the bellows, and the inner wall size of the sealing ring matches the outer wall size of the bellows.

[0009] Preferably, the inner wall of the fixing rubber ring is tightly fitted to the outer wall of the bellows, and the inner wall size of the fixing rubber ring matches the outer wall size of the bellows.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. The connection node between the power duct and the inspection well is equipped with sealing and fixing rubber rings. This facilitates the splicing of the corrugated pipe used for the power duct with the inspection well. By placing the sealing rubber ring on the outside of the corrugated pipe, the corrugated shape of the pipe provides a fixing effect for the sealing rubber ring, thereby providing a sealing effect at the connection between the corrugated pipe and the connecting channel. Similarly, the corrugated shape of the pipe also provides a fixing effect for the fixing rubber ring, which can fix the corrugated pipe at the inner end of the well body to the connecting channel, preventing the corrugated pipe from falling off the connecting channel, thereby improving the connection stability between the power duct and the inspection well. At the same time, the corrugated pipe is made of polyethylene, which is lightweight, easy to lay, and has good corrosion resistance and strong pressure resistance.

[0012] 2. The connection point between the power duct and the inspection well is constructed with a well body made of reinforced concrete and a climbing handrail. The reinforced concrete well body has the characteristics of high compressive strength, good durability and high water permeability, thereby improving the overall structural strength of the inspection well. At the same time, the climbing handrail installed on the inner wall of the well can facilitate the climbing of construction and maintenance personnel during power construction and maintenance, thereby improving construction safety. Attached Figure Description

[0013] Figure 1 This is a front sectional view of the present invention;

[0014] Figure 2 This is a top view of the present invention;

[0015] Figure 3 This is a frontal sectional view of the well body of this utility model.

[0016] In the diagram: 1. Well body; 2. Wellhead; 3. Fixing block; 4. Climbing handrail; 5. Fixing rod; 6. Connecting channel; 7. Corrugated pipe; 8. Sealing ring; 9. Fixing ring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3This utility model provides a technical solution: a connection node between an electrical conduit and a manhole, including a manhole body 1 made of reinforced concrete. The manhole body 1 has a manhole opening 2 at its top and a fixing block 3 on its inner wall. A climbing handrail 4 is installed at the front end of the fixing block 3, and a fixing rod 5 is installed at the rear end of the climbing handrail 4. The climbing handrail 4 is threadedly connected to the fixing block 3 via the fixing rod 5. Both the outer wall of the fixing rod 5 and the inner wall of the fixing block 3 are threaded. The manhole body 1, constructed of reinforced concrete, has high compressive strength, good durability, and high permeability, thereby improving the overall structural strength of the manhole. At the same time, the climbing handrail 4 installed on the inner wall of the manhole body 1 facilitates climbing for construction and maintenance personnel during electrical construction and maintenance, thereby improving construction safety.

[0019] Both ends of the inner wall of the well body 1 are provided with connecting channels 6, and corrugated pipes 7 are installed on the inner walls of the connecting channels 6. A sealing ring 8 is provided on the outer wall of the corrugated pipe 7. The inner wall of the sealing ring 8 is tightly fitted to the outer wall of the corrugated pipe 7, and the inner wall size of the sealing ring 8 matches the outer wall size of the corrugated pipe 7. A fixing ring 9 is provided at one end of the outer wall of the corrugated pipe 7. The inner wall of the fixing ring 9 is tightly fitted to the outer wall of the corrugated pipe 7, and the inner wall size of the fixing ring 9 matches the outer wall size of the corrugated pipe 7. The sealing ring 8 and the fixing ring 9 facilitate the connection of the corrugated pipe 7 used for power pipeline installation to the inspection well. By fitting the sealing ring 8 onto the outside of the corrugated pipe 7, the corrugated shape of the corrugated pipe 7 can provide a fixing effect for the sealing ring 8, thereby providing a sealing effect at the connection between the corrugated pipe 7 and the connecting channel 6. Similarly, the corrugated shape of the corrugated pipe 7 can provide a fixing effect for the fixing ring 9, thus fixing the corrugated pipe 7 at the inner end of the well body 1 to the connecting channel 6, preventing the corrugated pipe 7 from falling off the connecting channel 6, thereby improving the connection stability between the power pipeline and the inspection well. At the same time, the corrugated pipe 7 is made of polyethylene, which is lightweight, easy to lay, and has good corrosion resistance and strong pressure resistance.

[0020] Working principle: When connecting the power cable conduit to the inspection well, firstly, the sealing ring 8 is fitted over the corrugated pipe 7. Then, the corrugated pipe 7 is inserted into the well body 1 through the connecting channel 6. The corrugated shape on the corrugated pipe 7 provides a fixing effect for the sealing ring 8, thus providing a sealing effect at the connection between the corrugated pipe 7 and the connecting channel 6. Similarly, the corrugated shape on the corrugated pipe 7 provides a fixing effect for the fixing ring 9, thus fixing the corrugated pipe 7 at the inner end of the well body 1 to the connecting channel 6, preventing the corrugated pipe 7 from falling off the connecting channel 6, thereby improving the efficiency of the power cable conduit connection. The connection stability between the pipe and the inspection well is ensured. The corrugated pipe 7 is made of polyethylene, which is lightweight, easy to lay, and has excellent corrosion resistance and high compressive strength. Furthermore, the well body 1, constructed of reinforced concrete, and the climbing handrail 4 enhance the overall structural strength of the inspection well. The reinforced concrete well body 1 is characterized by high compressive strength, durability, and high permeability. The climbing handrail 4 installed on the inner wall of the well body 1 facilitates climbing for maintenance personnel during power construction, thus improving construction safety.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power vault and inspection shaft junction node, characterized by, The well body (1) is provided with a wellhead (2) at the top and a fixing block (3) is provided on the inner wall of the well body (1). A climbing handrail (4) is installed at the front end of the fixing block (3) and a fixing rod (5) is provided at the rear end of the climbing handrail (4). A connecting channel (6) is provided at both ends of the inner wall of the well body (1) and a corrugated pipe (7) is installed on the inner wall of the connecting channel (6). A sealing ring (8) is provided on the outer wall of the corrugated pipe (7) and a fixing ring (9) is provided at one end of the outer wall of the corrugated pipe (7).

2. The power vault and manhole junction node of claim 1, wherein: The well body (1) is made of steel bars and concrete.

3. The power vault and manhole junction node of claim 1, wherein: The climbing handrail (4) is threadedly connected to the fixing block (3) via a fixing rod (5), and both the outer wall of the fixing rod (5) and the inner wall of the fixing block (3) are threaded.

4. The power vault and manhole junction node of claim 1, wherein: The inner wall of the sealing ring (8) is tightly fitted to the outer wall of the bellows (7), and the inner wall size of the sealing ring (8) matches the outer wall size of the bellows (7).

5. The connection node between the power duct and the inspection well according to claim 1, characterized in that: The inner wall of the fixing ring (9) is closely fitted with the outer wall of the bellows (7), and the inner wall size of the fixing ring (9) matches the outer wall size of the bellows (7).