Pipeline anti-impact device

By installing impact-resistant devices in plastic pipes, and utilizing the vertically symmetrical pipe shell and internal impact-resistant structure, the problem of insufficient impact resistance of plastic pipes in municipal drainage projects is solved, achieving stable system operation and simplified laying requirements.

CN224201362UActive Publication Date: 2026-05-05SHENYANG MUNICIPAL ENG DESIGN RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENYANG MUNICIPAL ENG DESIGN RES INST
Filing Date
2025-05-16
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Plastic pipes have poor impact resistance in municipal drainage projects, are prone to deformation or breakage, and have high installation requirements, leading to unstable system operation.

Method used

Design a pipe impact-resistant device that uses a vertically symmetrical pipe shell with an internal impact-resistant structure, including an inner pipe plate and a spring damper, to absorb impact energy through elastic deformation and protect the plastic pipe.

Benefits of technology

It improves the impact resistance of plastic pipes, ensures stable system operation, reduces the requirements for laying depth and backfilling, and facilitates inspection and maintenance.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a pipeline anti-impact device which comprises two pipeline shells, the number of the pipeline shells is two, the two pipeline shells are vertically and symmetrically arranged, an inner cavity of each pipeline shell is in a complete cylinder shape, a bolt is arranged at the attaching position of the two pipeline shells, and anti-impact structures are symmetrically arranged on the inner ring walls of the two pipeline shells. Products of different specifications can be adopted for the spring damper according to different pipe diameters so as to meet the requirement for the tight effect of the plastic pipeline and the pipeline inner plate, and when a backfilling medium outside the plastic pipeline does not meet the technical requirement or the acting force outside the design working condition occurs, the pipeline shell plays a protection role firstly; when the protection capacity of the pipeline shell is exceeded, impact energy is absorbed through elastic deformation of the spring damper, kinetic energy is converted into heat energy to be dissipated, and therefore the safety of the plastic pipeline is protected.
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Description

Technical Field

[0001] This utility model relates to the field of municipal drainage engineering technology, specifically to a pipeline impact-resistant device. Background Technology

[0002] With the acceleration of urbanization, the importance of municipal drainage engineering is becoming increasingly prominent. The main purpose of municipal drainage engineering is to collect, transport, and treat urban sewage and industrial wastewater, ensuring a clean and healthy urban environment. The importance of plastic pipes in municipal drainage engineering is self-evident. Plastic pipes are a crucial component of the drainage system, responsible for collecting, transporting, and treating wastewater. They are widely distributed throughout cities, traversing various terrains and buildings, and are an essential part of urban infrastructure.

[0003] While plastic pipes offer good hydraulic properties in municipal drainage projects, their poor impact resistance can lead to deformation or breakage. Conventional plastic pipe laying requires specific backfill depths to prevent deformation under external pressure, and the trench backfilling requirements are also high; otherwise, pipe deformation is highly likely. Therefore, we propose a pipe impact-resistant device to ensure the normal operation of drainage systems in municipal projects. Utility Model Content

[0004] The purpose of this invention is to provide a pipeline impact-resistant device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pipe impact-resistant device, comprising a pipe shell, wherein there are two pipe shells, the two pipe shells are arranged vertically symmetrically, and the inner cavity forms a complete cylindrical shape, bolts are provided at the joint of the two pipe shells, and impact-resistant structures are symmetrically arranged on the inner ring walls of the two pipe shells.

[0006] Preferably, the number of impact-resistant structures is two, and the impact-resistant structure includes a pipe inner plate. The number of pipe inner plates is eight, and the edges and corners are fitted together to form a complete cylindrical shape. Spring dampers are symmetrically fixed to the outer side wall of the pipe inner plate. The other end of the spring damper is connected to the inner ring wall of the pipe outer shell. A rubber layer is bonded to the inner side wall of the pipe inner plate.

[0007] Preferably, a base is fixedly connected to the lower surface of the pipe shell at the bottom, and a base plate is fixedly connected to both sides of the upper surface of the base. Circular piles are symmetrically fixedly connected to the upper surface of the base plate. The inner cavity of the circular pile is hollow, and a circular hole is circumferentially opened at the bottom of the outer wall of the circular pile.

[0008] Preferably, a square tube is fixedly connected to the center of the upper surface of the pipe shell at the top, and a tempered glass plate is fixedly connected to the top of the inner cavity of the square tube.

[0009] Preferably, a side plate is fixedly connected to the upper surface sidewall of the pipe shell at the top.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: the pipe shell is equipped with an impact-resistant structure inside, and the spring damper can be of different specifications according to different pipe diameters to meet the requirements of tight action between the plastic pipe and the inner plate of the pipe. Two impact-resistant structures are set between a set of pipe shells, and a gap can be set between the two impact-resistant structures to facilitate the connection of plastic pipes and leave installation space for docking. When the backfill medium outside the plastic pipe does not meet the technical requirements or when an external force occurs, the pipe shell first plays a protective role. When the impact exceeds the protective capacity of the pipe shell, the elastic deformation of the spring damper absorbs the impact energy and converts the kinetic energy into heat energy for dissipation, thereby protecting the safety of the plastic pipe. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 for Figure 1 Detailed structural diagram of the medium impact-resistant structure;

[0013] Figure 3 for Figure 1 Detailed structural diagram of the central circular pile;

[0014] In the diagram: 1. Pipe shell; 2. Bolt; 3. Impact-resistant structure; 31. Pipe inner plate; 32. Rubber layer; 33. Spring damper; 4. Base; 5. Base plate; 6. Round pile; 7. Side plate; 8. Square tube; 9. Tempered glass plate. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-3 This utility model provides a pipeline impact-resistant device, including a pipeline shell 1. There are two pipeline shells 1, which are arranged vertically symmetrically and have an inner cavity forming a complete cylindrical shape. Bolts 2 are provided at the joint of the two pipeline shells 1, and impact-resistant structures 3 are symmetrically arranged on the inner ring walls of the two pipeline shells 1.

[0017] There are two impact-resistant structures 3. The impact-resistant structure 3 includes an inner pipe plate 31. There are eight inner pipe plates 31, and their edges and corners are fitted together to form a complete cylindrical shape. Spring dampers 33 are symmetrically fixed to the outer side wall of the inner pipe plate 31. The other end of the spring damper 33 is connected to the inner ring wall of the outer pipe shell 1. A rubber layer 32 is glued to the inner side wall of the inner pipe plate 31.

[0018] A base 4 is fixedly connected to the lower surface of the bottom pipe shell 1. A base plate 5 is fixedly connected to both sides of the upper surface of the base 4. A round pile 6 is symmetrically fixedly connected to the upper surface of the base plate 5. The inner cavity of the round pile 6 is hollow, and a round hole is opened in the bottom ring of the outer wall of the round pile 6.

[0019] A square tube 8 is fixedly connected to the center of the upper surface of the top pipe shell 1, and a tempered glass plate 9 is fixedly connected to the top of the inner cavity of the square tube 8.

[0020] A side plate 7 is fixedly connected to the upper surface side wall of the top pipe shell 1.

[0021] Working principle: During the impact-resistant installation of the pipeline, a pipe shell 1 is pre-installed at the backfill site. The pipe shell 1 is symmetrically arranged and forms a complete cylindrical shape after assembly. Circular holes are provided on both sides of the pipe shell 1 for easy hoisting. The bottom of the pipe shell 1 is placed first, and a base 4 is fixed to its bottom. The base 4 fits snugly against the backfill site. Base plates 5 are installed on both sides of the base 4, and circular piles 6 are fixed to the surface of the base plates 5, providing stable support and enhancing the stability of the bottom. The circular piles 6 are hollow and have a ring-shaped base. A circular hole is provided, through which concrete is poured for the circular pile 6, making the support and fixation more secure. The plastic pipe is then placed on the inner ring wall of the pipe shell 1. The top of the pipe shell 1 and the bottom of the pipe 1 are connected by hoisting. The circular hole allows for fixing with bolts 2, ensuring the pipe shell 1 is properly connected. An impact-resistant structure 3 is installed inside the pipe shell 1, consisting of eight inner pipe plates 31 as its main body. These inner pipe plates 31 can be assembled into a complete cylinder. Each inner pipe plate 31 is connected to the pipe shell 1 via two spring dampers 33 on its outer side. The spring dampers 33 can be of different specifications depending on the pipe diameter, and a rubber layer 32 is also provided on the inner side to ensure the tightness of the plastic pipe. Two impact-resistant structures 3 are installed between a set of pipe shells 1, with a gap between them to facilitate connection and provide installation space for the plastic pipe. When the backfill medium outside the plastic pipe does not meet the technical requirements or when forces beyond the design conditions occur, the pipe shell 1 first provides protection. When the force exceeds the protective capacity of the pipe shell 1, the spring dampers... The elastic deformation of the damper 33 absorbs impact energy and converts kinetic energy into heat energy for dissipation, thereby protecting the safety of the plastic pipe. A side plate 7 is provided on one side of the top pipe shell 1. The side plate 7 can mark the specific construction information of the pipe and the specifications of the pipe parts, which is convenient for maintenance. In addition, a square pipe 8 is also provided on the top of the top pipe shell 1. After backfilling, the square pipe 8 will be close to the ground. During routine inspections, the surface soil can be dug up without completely excavating the pipe for inspection. The inside of the square pipe 8 can be observed through the tempered glass plate 9, which makes it easy to check the connection of the plastic pipe.

[0022] 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 pipeline impact-resistant device, characterized in that: It includes a pipe shell (1), and there are two pipe shells (1). The two pipe shells (1) are arranged vertically symmetrically, and the inner cavity forms a complete cylindrical shape. Bolts (2) are provided at the joint of the two pipe shells (1). The inner ring walls of the two pipe shells (1) are symmetrically provided with impact-resistant structures (3).

2. The pipeline impact-resistant device according to claim 1, characterized in that: The number of impact-resistant structures (3) is two. The impact-resistant structure (3) includes a pipe inner plate (31). The number of pipe inner plates (31) is eight, and the edges and corners are fitted together to form a complete cylindrical shape. Spring dampers (33) are symmetrically fixedly connected to the outer side wall of the pipe inner plate (31). The other end of the spring damper (33) is connected to the inner ring wall of the pipe outer shell (1). A rubber layer (32) is glued to the inner side wall of the pipe inner plate (31).

3. The pipeline impact-resistant device according to claim 1, characterized in that: A base (4) is fixedly connected to the lower surface of the pipe shell (1) at the bottom. A base plate (5) is fixedly connected to both sides of the upper surface of the base (4). A round pile (6) is symmetrically fixedly connected to the upper surface of the base plate (5). The inner cavity of the round pile (6) is hollow, and a round hole is opened in the bottom of the outer wall of the round pile (6).

4. The pipeline impact-resistant device according to claim 1, characterized in that: A square tube (8) is fixedly connected to the center of the upper surface of the pipe shell (1) at the top, and a tempered glass plate (9) is fixedly connected to the top of the inner cavity of the square tube (8).

5. The pipeline impact-resistant device according to claim 1, characterized in that: A side plate (7) is fixedly connected to the upper surface side wall of the pipe shell (1) mentioned above.