A manhole conversion device for communication transmission lines
By using a sealing groove, float ball, and wire limiting groove structure at the manhole of the communication transmission pipeline, the problem of decreased sealing performance caused by gasket aging is solved, achieving good sealing performance and stability, preventing rainwater immersion, and ensuring pipeline safety and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 贵州通信建设工程有限公司
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-26
AI Technical Summary
The manhole gaskets in existing communication transmission pipelines age after prolonged use, resulting in decreased sealing performance and allowing rainwater to easily enter, affecting pipeline safety.
It adopts a structure of sealing groove, float ball and limiting groove. The sealing groove and cover plate form a seal, the float ball is used to prevent water immersion, and the limiting groove fixes the pipeline through a magnetic structure to ensure sealing and stability.
It improves the sealing between the housing and the cover plate, prevents rainwater from entering, protects communication transmission lines, avoids connection confusion, and facilitates maintenance.
Smart Images

Figure CN224290319U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of manhole technology for communication transmission pipelines, specifically a manhole conversion device for communication transmission pipelines. Background Technology
[0002] Manholes are transit and relay points on the main communication pipeline, and they are also terminal nodes on the communication pipeline network. Manhole conversion devices help to achieve reasonable layout and connection of pipelines and facilitate the access of branch pipelines.
[0003] The existing manholes are equipped with a cover plate at the top to seal them. However, there are gaps between the manhole and the cover plate, which allows rainwater to enter through the connection between the manhole and the cover plate. This causes the rainwater to be squeezed inside the manhole, thus soaking the communication transmission pipeline.
[0004] To address the aforementioned deficiencies, an anti-theft manhole with the authorized publication number CN221721718U is proposed. It uses a moisture-proof ring for moisture protection, then uses a sealing gasket to seal the inside of the manhole, and finally uses a buffer ring to provide buffer protection when the top cover is closed. This improves the sealing performance of the manhole and makes it less likely for mud to flow in during underground burial, thereby enhancing the sealing safety of the manhole.
[0005] In actual use of the above-mentioned device, although the moisture-proof ring achieves the sealing effect, it still requires the use of a sealing gasket to achieve the sealing effect. However, the sealing gasket will age after long-term use, resulting in a decrease in sealing performance.
[0006] Therefore, we propose a manhole conversion device for communication transmission pipelines that can effectively solve the above problems. Utility Model Content
[0007] The purpose of this invention is to provide a manhole conversion device for communication transmission pipelines, in order to solve the problem mentioned in the background art that the use of sealing gaskets in the current market to play a sealing role, and the sealing gaskets will age after long-term use, resulting in a decrease in sealing performance.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a manhole conversion device for communication transmission pipelines, comprising a housing, wherein the housing is embedded in the ground;
[0009] The interior of the housing has a communication transmission pipeline, and the top of the housing is fitted with a cover plate. The bottom of the cover plate extends into the interior of the sealing groove to form a sealing mechanism, and the sealing groove is located on the top of the housing.
[0010] Preferably, the sealing groove is concave, and a sealing gasket fits inside the sealing groove.
[0011] Preferably, a sliding rod is slidably connected inside the housing, and a float is fixed at the bottom of the sliding rod.
[0012] Preferably, the float is located at the bottom of the shell, and the float is made of plastic and has a hollow interior.
[0013] Preferably, the top of the slide bar is fitted with a wire groove, and a communication transmission line is engaged and connected inside the wire groove, and the wire groove is made of plastic material.
[0014] Preferably, a first magnet is fixed at the bottom of the limiting groove, and the first magnet and the second magnet form an attraction structure, and the second magnet is fixed inside the top of the slide rod.
[0015] Preferably, the limiting grooves are evenly spaced at the top of the slide bar, and the opening at the top of the limiting groove is provided with a barb.
[0016] Compared with the prior art, the beneficial effects of this utility model are: the manhole conversion device for communication transmission pipelines has better sealing and can prevent the communication transmission pipelines from being immersed in water. The use of a sealing groove can improve the sealing between the shell and the cover plate, and the use of a float ball can further prevent the communication transmission pipelines from being immersed in water. The specific details are as follows:
[0017] (1) A sealing groove is provided. The concave sealing groove enables the sealing groove to achieve a better seal with the cover plate. As a result, after long-term use, the sealing life between the housing and the cover plate can be improved through the sealing groove.
[0018] (2) A float is provided. When the water level inside the shell rises, the float will move, which in turn will move the communication transmission line on the limiting groove, thus preventing the communication transmission line from being soaked in water and thus protecting the communication transmission line.
[0019] (3) A limited wire groove is set up, and the top of the sliding rod is attached to the limited wire groove. The communication transmission pipeline is connected in the limited wire groove. The limited wire groove is made of plastic material, so that the limited wire groove can fix the communication transmission pipeline, thereby avoiding the connection chaos between the communication transmission pipelines.
[0020] (4) A first magnet is provided, and the first magnet is fixed at the bottom of the limiting groove. The first magnet and the second magnet form an attraction structure, and the second magnet is fixed inside the top of the slide rod. The attraction between the first magnet and the second magnet can limit the limiting groove, thereby preventing the limiting groove from leaving the inside of the slide rod.
[0021] (5) A wire groove is set up. The wire groove is set at equal intervals at the top of the slide bar, and a barb is provided in the opening at the top of the wire groove. This allows the barb on the wire groove to engage the communication transmission line, thereby improving the stability of engaging the communication transmission line. Attached Figure Description
[0022] Figure 1 This is a front view structural diagram of the present invention;
[0023] Figure 2 This is a schematic diagram of the structure of the cover plate after it has been moved according to this utility model.
[0024] Figure 3 This is a schematic diagram of the connection structure between the shell and the cover plate of this utility model;
[0025] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;
[0026] Figure 5 This is a schematic diagram of the connection structure between the slide bar and the float of this utility model;
[0027] Figure 6 This is a schematic diagram of the connection structure between the first magnet and the second magnet of this utility model.
[0028] In the diagram: 1. Shell; 2. Cover plate; 3. Sealing groove; 4. Sliding rod; 5. Float; 6. Limiting groove; 7. First magnet; 8. Second magnet. Detailed Implementation
[0029] 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.
[0030] Example 1: A manhole conversion device for communication transmission pipelines solves the problem that existing sealing gaskets, which rely on aging over time, lead to decreased sealing performance. The device utilizes a sealing groove 3 to improve the seal between the housing 1 and the cover plate 2, thus preventing rainwater ingress. The following is disclosed:
[0031] The housing 1 is buried inside the ground; a communication transmission pipeline passes through the inside of the housing 1, and a cover plate 2 is attached to the top of the housing 1, and the bottom of the cover plate 2 extends into the inside of the sealing groove 3 to form a sealing mechanism. The sealing groove 3 is opened on the top of the housing 1, the sealing groove 3 is concave, and a sealing gasket fits inside the sealing groove 3.
[0032] refer to Figures 1 to 3 The housing 1 is buried in the ground, and then the communication transmission line can be connected through the housing 1. Finally, the cover plate 2 is placed inside the housing 1, so that the cover plate 2 can be inserted into the sealing groove 3. The sealing groove 3 can be connected with the cover plate 2 to form a seal, thereby preventing water from overflowing from the connection between the housing 1 and the cover plate 2. This prevents water from being squeezed inside the housing 1 and affecting the use of the communication transmission line.
[0033] Example 2: A manhole conversion device for communication transmission pipelines solves the problem that existing devices can cause water to enter the interior of the housing 1 and soak the communication transmission pipeline, thus damaging it. The use of a float 5 can prevent damage to the communication transmission pipeline. The following is disclosed:
[0034] The housing 1 has a sliding rod 4 inside, and a float 5 is fixed at the bottom of the sliding rod 4. The float 5 is located at the bottom of the housing 1 and is made of plastic. The float 5 is hollow inside. The top of the sliding rod 4 is attached to a wire groove 6, and a communication transmission line is engaged and connected inside the wire groove 6. The wire groove 6 is made of plastic.
[0035] refer to Figures 3 to 5 When water is squeezed inside the shell 1, the water level inside the shell 1 rises, which in turn pushes the float 5 upward. This causes the float 5 to move the slide rod 4 upward inside the shell 1. The movement of the slide rod 4 then moves the communication transmission line in the limiting groove 6, thereby raising the position of the communication transmission line and protecting it. When the water level drops, gravity causes the float 5 to move downward, which in turn causes the slide rod 4 to reset the limiting groove 6.
[0036] Example 3: A manhole conversion device for communication transmission pipelines solves the problem of messy connections in existing communication transmission pipelines, which makes maintenance inconvenient. The use of the wire limiting groove 6 allows for the organization of the communication transmission pipelines, thus facilitating subsequent maintenance. The following is disclosed:
[0037] The bottom of the limiting groove 6 is fixed with a first magnet 7, and the first magnet 7 and the second magnet 8 form an attraction structure. The second magnet 8 is fixed inside the top of the slide rod 4. The limiting grooves 6 are evenly spaced at the top of the slide rod 4, and the opening at the top of the limiting groove 6 is provided with a barb.
[0038] refer to Figure 3 , Figure 5 and Figure 6 By pressing the communication transmission line, the communication transmission line can be fixed inside the limiting groove 6, thus tidying up the communication transmission line and avoiding misconnection. By pulling the limiting groove 6, the limiting groove 6 can move the first magnet 7, thus separating the first magnet 7 from the second magnet 8. This allows the limiting groove 6 to detach from the sliding rod 4 and be placed inside the sliding rod 4, where the first magnet 7 and the second magnet 8 attract each other to fix the limiting groove 6. This allows the limiting groove 6 to be adjusted according to different needs, thus improving its adaptability.
[0039] Working principle: When using this manhole conversion device for communication transmission lines, firstly, refer to... Figures 1 to 3 The housing 1 is buried in the ground, and then the communication transmission line can be connected through the housing 1. Then the cover plate 2 can be inserted into the sealing groove 3. The sealing groove 3 can be connected with the cover plate 2 to form a seal, thus preventing water from being squeezed inside the housing 1 and affecting the use of the communication transmission line.
[0040] refer to Figures 3 to 5 When water is squeezed inside the shell 1, the water level inside the shell 1 rises, which in turn pushes the float 5 to rise. Then, the sliding rod 4 moves, which drives the communication transmission line in the limiting groove 6 to move, thereby raising the position of the communication transmission line. When the water level drops, gravity can drive the float 5 to move down, which allows the sliding rod 4 to drive the limiting groove 6 to reset.
[0041] refer to Figure 3 , Figure 5 and Figure 6 By pressing the communication transmission line, the communication transmission line can be fixed inside the limiting groove 6, and the communication transmission line can be tidied up. By pulling the limiting groove 6, the limiting groove 6 can drive the first magnet 7 to move, thereby separating the first magnet 7 from the second magnet 8. The limiting groove 6 is then placed inside the slide bar 4, so that the first magnet 7 and the second magnet 8 attract each other and fix the limiting groove 6, thus improving the adaptability of use.
[0042] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A manhole conversion device for communication transmission pipelines, comprising a housing (1) embedded in the ground; characterized in that The inside of the housing (1) is through a communication transmission pipeline, and the top of the housing (1) is fitted with a cover plate (2), and the bottom of the cover plate (2) extends into the inside of the sealing groove (3) to form a sealing mechanism, and the sealing groove (3) is opened on the top of the housing (1).
2. A manhole conversion device for a communication transmission pipeline according to claim 1, characterized in that: The sealing groove (3) is concave, and a sealing gasket fits inside the sealing groove (3).
3. A manhole conversion device for communication transmission pipelines according to claim 1, characterized in that: The housing (1) is slidably connected to a slide rod (4), and a float (5) is fixed to the bottom of the slide rod (4).
4. A manhole conversion device for communication transmission pipelines according to claim 3, characterized in that: The float (5) is located at the bottom of the shell (1), and the float (5) is made of plastic material and the interior of the float (5) is hollow.
5. A manhole conversion device for communication transmission pipelines according to claim 3, characterized in that: The top of the slide bar (4) is fitted with a wire groove (6), and a communication transmission line is engaged and connected inside the wire groove (6), and the wire groove (6) is made of plastic material.
6. A manhole conversion device for communication transmission pipelines according to claim 5, characterized in that: The bottom of the limiting groove (6) is fixed with a first magnet (7), and the first magnet (7) and the second magnet (8) form an attraction structure, and the second magnet (8) is fixed inside the top of the slide rod (4).
7. A manhole conversion device for communication transmission pipelines according to claim 5, characterized in that: The limiting grooves (6) are evenly spaced at the top of the slide bar (4), and the opening at the top of the limiting grooves (6) is provided with barbs.
Citation Information
Patent Citations
Anti-theft hand hole
CN221721718U