A pipe lining reinforcement device

Abstract

The utility model discloses a kind of pipeline lining reinforcing device, it includes arc inner lining plate, fastener is fixed with inner lining plate outer side wall;Adjacent inner lining plate is connected by connecting mechanism and is installed on pipeline inner wall, form annular reinforcing lining compatible with pipeline inner wall;Connecting mechanism includes connecting plate, and connecting plate is connected with fastener by connecting piece.The utility model's inner lining plate adopts arc design, and adjacent inner lining plate is connected by connecting mechanism, realizes modularization splicing, without field welding, reduce the security risk brought by fire operation.The utility model is simple in structure, easy to install, can effectively reinforce pipeline inner wall, prevent pipeline breakage, prolong the service life of pipeline.

Description

Technical Field

[0001] This utility model relates to the field of construction technology, specifically to a pipe lining reinforcement device. Background Technology

[0002] In industrial production, pipelines used for drainage and gas supply are mostly constructed of cast concrete. During long-term operation, these pipelines are susceptible to problems such as wall thinning, localized depressions, or decreased structural strength due to factors such as internal medium pressure, external loads, and environmental corrosion. Replacing the entire pipeline is costly and time-consuming. Currently, the main methods for pipeline reinforcement are external wrapping and internal lining. External wrapping involves encasing the pipeline in corrosion-resistant and pressure-resistant materials (such as fiberglass or carbon fiber) to enhance structural strength. However, on-site welding can generate thermal stress, leading to changes in the pipeline material's properties. Furthermore, the external wrapping material may add extra weight, and its performance is significantly affected by the environment over long-term use.

[0003] Therefore, most pipeline reinforcement currently uses internal lining, which involves lining the inside of the pipeline with a lining plate made of corrosion-resistant and wear-resistant materials (such as rubber and ceramics). However, due to the arc-shaped structure inside the pipeline, the fit between the lining plate and the inner wall of the pipeline is poor, and it is prone to loosening after long-term use. In addition, the lining plate is usually connected to the pipeline by tapping, but because the lining plate is relatively thin, the torque is large when tapping, which can easily cause stripping of the threads and make it impossible to tighten.

[0004] Therefore, the development of a pipe reinforcement device that is structurally stable, easy to install, and highly adaptable has become an urgent need in the industry. Utility Model Content

[0005] The purpose of this invention is to provide a pipe lining reinforcement device to solve the above-mentioned problems.

[0006] The technical solution of this utility model is as follows: A pipe lining reinforcement device includes an arc-shaped lining plate, with fasteners fixed to the outer wall of the lining plate; adjacent lining plates are connected by a connecting mechanism and installed on the inner wall of the pipe to form an annular reinforced lining that fits the inner wall of the pipe; the connecting mechanism includes a connecting plate, which is connected to the fasteners by a connector.

[0007] Preferably, the inner lining plate has through holes at equal intervals around its perimeter for the connectors to pass through, and the fasteners are welded to the outer wall of the inner lining plate and are coaxially arranged with the through holes.

[0008] Preferably, the fastener is a nut, the connector is a bolt, and the bolt and nut are threaded together.

[0009] Preferably, a support is fixed on the inner wall of the pipe located at the connecting mechanism, and the connecting member contacts the support after passing through the fastener.

[0010] Preferably, the support member is made of support steel bars arranged alternately in the horizontal and vertical directions and is embedded in the inner wall of the pipe by connecting steel bars.

[0011] Preferably, the connecting plate has connecting holes and adjustment holes arranged side by side.

[0012] Preferably, the connecting plate includes a straight connecting plate axially connected to the inner lining plate and a bent connecting plate circumferentially connected to the inner lining plate. The bent connecting plate includes a body, and both ends of the body are respectively connected to folded edges bent to one side.

[0013] The beneficial effects of this utility model are as follows: 1. The inner lining plate of this utility model adopts an arc-shaped design, the curvature of which is adapted to the curvature of the inner wall of the pipe to be reinforced. Combined with a bending connecting plate whose bending angle can be set as needed, it solves the problem of poor adaptability of traditional reinforcement devices to complex pipe structures, significantly improves the fit between the inner lining plate and the inner wall of the pipe, and prevents loosening during long-term use.

[0014] 2. This utility model adopts a connection method that uses fasteners (such as nuts) and connectors (such as fastening bolts) to achieve modular splicing, eliminating the need for on-site welding and reducing safety hazards caused by hot work operations; at the same time, it simplifies the installation process, improves construction efficiency, and shortens pipeline downtime for maintenance.

[0015] 3. This utility model connects adjacent inner lining plates through a connecting plate, thereby solving the problem of slippage that easily occurs during the installation of traditional inner lining plates, and improving the fastening effect and structural stability.

[0016] 4. By setting connection holes and adjustment holes on the connecting plate and adopting a combination design of straight connecting plate and bent connecting plate, this utility model enables the reinforcement device to adapt to the reinforcement needs of pipes with different diameters and pressure levels, reduces the use of customized parts, and improves the versatility of the structure; at the same time, it facilitates mass production and reduces the overall construction cost.

[0017] 5. This utility model incorporates a support component on the inner wall of the pipeline, which is formed by alternating transverse and longitudinal reinforcing steel bars connected together to create a grid-like reinforced structure. This structure works in conjunction with the arc-shaped inner lining plate to share the load, significantly improving the overall resistance to deformation. It can also evenly distribute the internal pressure of the pipeline over a wider area, effectively reducing the risk of localized pipeline damage and extending the pipeline's service life. Furthermore, it enhances the overall structural stability, solving the problem of insufficient support stability in existing pipeline reinforcement technologies.

[0018] 6. The bending joint of the bending connection plate adopts a rounded transition design to avoid stress concentration; the components are reliably welded and bolted together to ensure the stability of the reinforcement device during long-term use and reduce safety accidents caused by loosening or falling off of the reinforcement device. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a sectional view of the present invention; Figure 2 This is a partially enlarged schematic diagram of the present invention; Figure 3 This is a schematic diagram of the connection between the inner lining plate and the welding nut in this utility model; Figure 4 This is a schematic diagram of the structure of the inner lining plate in this utility model; Figure 5 This is a schematic diagram of the straight connecting plate in this utility model; Figure 6 This is a schematic diagram of the bending connecting plate in this utility model.

[0021] The annotations in the attached figures are explained as follows: In the diagram: 1. Inner lining plate; 11. Through hole; 2. Nut; 3. Connecting plate; 31. Straight connecting plate; 32. Bent connecting plate; 33. Connecting hole; 34. Adjusting hole; 35. Folded edge; 4. Fastening bolt; 5. Support; 6. Pipe. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. The described embodiments are merely some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] See Figure 1-6 As shown, this embodiment provides a pipe lining reinforcement device, which includes an arc-shaped lining plate 1 (such as...). Figure 4 As shown, fasteners are fixed to the outer wall of the inner lining plate 1. Adjacent inner lining plates 1 are connected by a connecting mechanism and installed on the inner wall of the pipe 6 to form a ring-shaped reinforced inner lining that fits the inner wall of the pipe. The connecting mechanism includes a connecting plate 3, which is connected to the fasteners by a connector.

[0025] In this embodiment, the inner lining plate 1 is made of Q235B carbon structural steel rolled into a one-meter-long arc shape. Its curvature is customized according to the inner diameter curvature of the pipeline to be reinforced, ensuring a tight fit with the inner wall of the pipeline. The thickness of the inner lining plate 1 can be adapted to the pipeline pressure rating.

[0026] The inner liner plate 1 has through holes 11 evenly spaced around its perimeter for connecting parts to pass through. Fasteners are welded to the outer wall of the inner liner plate 1 and are coaxially arranged with the through holes 11. This design allows the inner liner plate 1 to achieve a stable connection with the connecting mechanism through the through holes 11 and fasteners, ensuring the stability of the entire inner liner structure.

[0027] In this embodiment, the fastener is a nut 2, and the connector is a bolt 4, with a threaded connection between the bolt 4 and the nut 2. This connection method facilitates installation and disassembly, while also providing high connection strength, capable of withstanding various pressures and vibrations that may occur inside the pipeline.

[0028] A support member 5 is fixed to the inner wall of the pipe 6 located at the connecting mechanism. The fastening bolt 4 passes through the nut 2 and contacts the support member 5. The support member 5 is a grid-like reinforcing structure formed by alternating horizontal and vertical support steel bars, and is fixed to the inner wall of the pipe by connecting steel bars. This structural design allows the support member 5 to provide additional support force, that is, to cooperate with the arc-shaped inner lining plate to share the force, thereby significantly improving the overall deformation resistance of the pipe lining reinforcement device, enhancing the stability and load-bearing capacity of the pipe lining reinforcement device, and effectively preventing the inner lining plate 1 from displacing or deforming inside the pipe.

[0029] The connecting plate 3 has connecting holes 33 and adjusting holes 34 arranged side by side. This design allows the connecting plate 3 to be installed through different hole positions, enabling fine-tuning of the installation position of the inner lining plate 1, adapting to different pipe inner wall sizes and shapes, and improving installation accuracy and adaptability.

[0030] The connecting plate 3 includes a straight connecting plate 31 axially connected to the inner lining plate 1 and a bent connecting plate 32 circumferentially connected to the inner lining plate 1. The bent connecting plate 32 includes a body, with folded edges 35 bent to one side connected to both ends of the body. The bends of the bent connecting plate adopt an arc transition design to avoid stress concentration. This design allows the connecting plate 3 to achieve both axial and circumferential connection of the inner lining plate 1, forming a complete annular inner lining structure and enhancing overall stability.

[0031] In actual use, the support 5 is first fixed to the inner wall of the pipe 6. Then, multiple arc-shaped inner lining plates 1 are placed into the pipe 6 in sequence. During installation, the principle of "bottom first, top second, and installation piece by piece" is followed. That is, the inner lining plate 1 located at the bottom of the pipe is installed first, and then the upper inner lining plates are connected to its two sides. Adjacent inner lining plates 1 around the pipe are connected by the connecting plate 3, and finally installed along the length of the pipe. During installation, the fastening bolts 4 are passed through the connecting holes 33 or adjusting holes 34 on the connecting plate 3 and the through holes 11 on the inner lining plate 1 in sequence. Since the nut 2 is welded to the inner lining plate 1 and is coaxial with the through hole 11, the fastening bolts 4 are threaded to the nut 2 after passing through the through hole 11. Finally, the end of the fastening bolt 4 contacts the support 5 to complete the installation of the entire inner lining reinforcement device. In addition, the axial connection of the inner liner plate 1 adopts a straight connecting plate 31, and the circumferential connection of the inner liner plate 1 adopts a bent connecting plate 32. The folded edge 32 of the bent connecting plate 32 is arc-shaped, which is perfectly matched with the arc-shaped inner wall of the inner liner plate 1, thereby improving the stability of the entire device.

[0032] This pipeline lining reinforcement device, through the combined design of the inner lining plate 1 and the connecting mechanism, forms a ring-shaped reinforced lining that fits the inner wall of the pipeline. This effectively enhances the structural strength of the pipeline, extends its service life, and prevents corrosion and damage to the inner wall. Furthermore, the device is easy to install and maintain, making it suitable for various types of pipeline lining reinforcement projects.

[0033] The above description is illustrative of the present invention and its embodiments. This description is not restrictive and is merely one embodiment of the present invention, and is not actually limited thereto. Therefore, if those skilled in the art, inspired by this description, design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A pipe lining reinforcement device, characterized in that, It includes an arc-shaped inner lining plate (1), and fasteners are fixed on the outer side wall of the inner lining plate (1); adjacent inner lining plates (1) are connected by a connecting mechanism and installed on the inner wall of the pipe (6) to form an annular reinforced inner lining that is adapted to the inner wall of the pipe; the connecting mechanism includes a connecting plate (3), and the connecting plate (3) is connected to the fasteners by a connector.

2. The pipe lining reinforcement device according to claim 1, characterized in that, The inner lining plate (1) has through holes (11) at equal intervals around its perimeter for the connector to pass through. The fastener is welded to the outer wall of the inner lining plate (1) and is coaxially arranged with the through holes (11).

3. The pipe lining reinforcement device according to claim 1, characterized in that, The fastener is a nut (2), the connector is a fastening bolt (4), and the fastening bolt (4) and the nut (2) are connected by threads.

4. The pipe lining reinforcement device according to claim 1, characterized in that, A support member (5) is fixed on the inner wall of the pipe (6) located at the connecting mechanism, and the connecting member contacts the support member (5) after passing through the fastener.

5. A pipe lining reinforcement device according to claim 4, characterized in that, The support member (5) is made of support steel bars that are alternately arranged in the horizontal and vertical directions and is embedded in the inner wall of the pipe through connecting steel bars.

6. The pipe lining reinforcement device according to claim 1, characterized in that, The connecting plate (3) is provided with connecting holes (33) and adjusting holes (34) arranged side by side.

7. A pipe lining reinforcement device according to claim 1, characterized in that, The connecting plate (3) includes a straight connecting plate (31) axially connected to the inner lining plate (1) and a bent connecting plate (32) circumferentially connected to the inner lining plate (1). The bent connecting plate (32) includes a body, and the two ends of the body are respectively connected to a bent edge (35) to one side.

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