Corrugated pipe steel lining
By incorporating an adjustment device within the corrugated steel liner, the adjustability of the corrugated pipe is achieved, solving the problem of adaptability to steel pipes of different diameters and improving ease of use and adaptability.
Patent Information
- Application Number
- CN202521569794.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-25
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-25
AI Technical Summary
Existing corrugated steel liners are only suitable for steel pipes of fixed size and cannot adapt to steel pipes of different diameters, resulting in inconvenience in use.
By setting up adjustment devices, including sliding rods, sliding sleeves, return springs, and rotating turntables, the corrugated pipe can be adjusted and fixed according to the size of the steel pipe, adapting to steel pipes of different diameters.
It improves the versatility and ease of use of corrugated steel liners, enabling them to adapt to steel pipes of various diameters and enhancing their adaptability and ease of installation.
Smart Images

Figure CN224680374U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel pipe and steel lining technology, specifically a corrugated pipe type steel lining. Background Technology
[0002] Corrugated steel liners are specially designed lining structures widely used in equipment and pipelines requiring protection of inner surfaces from corrosion or damage. The corrugated design enhances the material's toughness and durability, particularly effective under high pressure or high temperature conditions. Corrugated steel liners enhance the structure's strength and flexibility by manufacturing steel pipes with corrugated shapes. The corrugated design allows the liner to withstand significant internal and external forces under high pressure and high temperature environments, while also accommodating changes in thermal expansion. Due to the special structure of the corrugated shape, the inner and outer surfaces of the liner can withstand higher mechanical loads, preventing cracking or deformation. Its main applications include storage tanks and pipelines in the chemical, oil, and natural gas industries, as well as other industrial equipment. However, existing corrugated steel liners are typically of fixed sizes, only applicable to steel pipes of corresponding diameters. When dealing with steel pipes of various diameters, multiple different sizes of corrugated steel liners are required for fixed support, which is inconvenient when meeting the needs of different steel pipe diameters. Therefore, there is an urgent need for an innovative corrugated steel liner. Summary of the Invention
[0003] This utility model provides a corrugated steel liner that can be adjusted by using a sliding rod within a sliding sleeve via an adjustment device. This allows the corrugated pipe to be adjusted outwards or inwards on the inner liner while simultaneously fixing the guide for its movement. The corrugated pipe can be positioned according to the size of the steel pipe it needs to support, and then a return spring is used to support the corrugated pipe outwards, thereby supporting the steel pipe. If it needs to be installed on a thinner steel pipe, the position of the movable rod can be adjusted by rotating a turntable using an inner pressure groove. This effectively improves the versatility of the corrugated steel liner and thus enhances its ease of use.
[0004] To achieve the above objectives, a corrugated steel liner is provided, comprising a steel pipe, a rotating turntable rotatably connected to the front surface of the steel pipe, an inner liner slidably connected to the rear surface of the rotating turntable, an adjusting device fixedly connected to the outer annular surface of the inner liner, and multiple adjusting devices. A sliding plate is slidably connected to the inner surface of the inner liner. The rotating turntable is provided to facilitate the adjustment of the position of the movable rod through the inner pressure groove, and the sliding plate is provided to facilitate the sliding connection between the rotating turntable and the inner liner.
[0005] According to the aforementioned corrugated steel liner, the adjusting device includes a sliding sleeve, a sliding rod, a corrugated pipe, a slot, a mounting ring, a return spring, a rotating disk, a movable rod, an initial slot, an outer expansion slot, and an inner pressure slot. The sliding sleeve is fixedly connected to the outer annular surface of the inner liner tube. The sliding sleeve is provided to facilitate the guidance of the sliding rod during movement.
[0006] According to the aforementioned corrugated steel liner, the sliding rod is slidably connected to the inner annular surface of the sliding sleeve, and the corrugated pipe is fixedly connected to the other end of the sliding rod. The sliding rod is provided to facilitate the guidance when the corrugated pipe moves, and the corrugated pipe is provided to facilitate the support for lining the steel pipe.
[0007] According to the aforementioned corrugated steel liner, the slot is fixedly disposed on the inner surface of the corrugated pipe near the center, and the mounting ring is fixedly connected to the inner surface of the corrugated pipe near the center. The slot is provided to facilitate the fitting of the corrugated pipe with the sliding sleeve when the inner liner is fitted, and the mounting ring is provided to facilitate the installation of the return spring.
[0008] According to the aforementioned corrugated steel liner, the return spring is fixedly connected to the inner surface of the mounting ring near the center, and the rotating disk is rotatably connected to the front surface of the corrugated tube. The return spring is provided to facilitate pushing the corrugated tube outward, and the rotating disk is provided to facilitate the installation of the movable rod.
[0009] According to the aforementioned corrugated steel liner, the movable rod is rotatably connected to the inner annular surface of the rotating disk, and the initial groove is fixedly set on the rear surface of the rotating disk. The movable rod is provided to facilitate fixing the corrugated pipe in the initial groove, thereby fixing the position of the corrugated pipe.
[0010] According to the aforementioned corrugated steel liner, the outer expansion groove is fixedly set at the upper end of the initial groove, and the inner pressure groove is fixedly set at the lower right end of the initial groove. The inner pressure groove is set to facilitate the control of the position of the movable rod, thereby adjusting the position of the corrugated pipe.
[0011] The beneficial effects of this utility model are as follows: By setting an adjustment device, a sliding rod can be moved within the sliding sleeve, allowing the corrugated pipe to be adjusted outwards or inwards on the inner liner while simultaneously fixing the guide for the movement of the corrugated pipe. The position of the corrugated pipe can be adjusted according to the size of the steel pipe it needs to support, and then a return spring is used to support the corrugated pipe outwards, thereby supporting the steel pipe. If it needs to be installed on a thinner steel pipe, the position of the movable rod can be adjusted by rotating the turntable and using the inner pressure groove. This effectively improves the versatility of the corrugated pipe steel liner, thereby enhancing the convenience of using the corrugated pipe steel liner.
[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0014] Figure 1 This is a schematic diagram of the overall structure of a corrugated steel liner according to the present invention;
[0015] Figure 2 This is a front view of the overall structure of a corrugated steel liner according to the present invention;
[0016] Figure 3 This is a schematic diagram of an adjustment device for a corrugated steel liner according to the present invention.
[0017] Figure 4 This is a cross-sectional view of an adjustment device for a corrugated steel liner according to the present invention.
[0018] Legend:
[0019] 1. Steel pipe; 2. Rotating turntable; 3. Inner liner; 4. Adjustment device; 401. Sliding sleeve; 402. Sliding rod; 403. Corrugated pipe; 404. Slot; 405. Mounting ring; 406. Return spring; 407. Rotating disc; 408. Movable rod; 409. Initial groove; 410. Outer expansion groove; 411. Inner pressure groove; 5. Sliding plate. Detailed Implementation
[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0021] Reference Figures 1 to 4 This utility model provides a corrugated steel liner, which includes a steel pipe 1. A rotating turntable 2 is rotatably connected to the front surface of the steel pipe 1. An inner liner 3 is slidably connected to the rear surface of the rotating turntable 2. An adjusting device 4 is fixedly connected to the outer annular surface of the inner liner 3. There are multiple adjusting devices 4. A sliding plate 5 is slidably connected to the inner surface of the inner liner 3. The sliding plate 5 is fixedly connected to the rotating turntable 2 and is restricted to slide within the inner liner 3, thereby slidably connecting the rotating turntable 2 and the inner liner 3.
[0022] The adjusting device 4 includes a sliding sleeve 401, a sliding rod 402, a bellows 403, a slot 404, a mounting ring 405, a return spring 406, a rotating disk 407, a movable rod 408, an initial groove 409, an outer expansion groove 410, and an inner pressure groove 411. The sliding sleeve 401 is fixedly connected to the outer annular surface of the inner liner tube 3. The sliding rod 402 is slidably connected to the inner annular surface of the sliding sleeve 401, and the bellows 403 is fixedly connected to the other end of the sliding rod 402. The slot 404 is fixedly disposed on the inner surface of the bellows 403 near its center, and the mounting ring 405 is fixedly connected to the inner surface of the bellows 403 near its center. The return spring 406 is fixedly connected to the inner surface of the mounting ring 405 near its center, and the rotating disk 407 is rotatably connected to the front surface of the bellows 403. The movable rod 408 is rotatably connected to the inner annular surface of the rotating disk 407, and the initial groove 409 is fixedly set on the rear surface of the rotating disk 2. The outer expansion groove 410 is fixedly set on the upper end of the initial groove 409, and the inner pressure groove 411 is fixedly set on the lower right end of the initial groove 409. An existing buckle is provided in the initial groove 409, and the buckle switch is set on the outer surface of the rotating disk 2. The buckle can be controlled by the switch.
[0023] Working principle: In use, first place the steel pipe to be fitted with the corrugated steel liner on the clamp and clamp it. When the adjusting device 4 is idle, under the action of the return spring 406, the corrugated pipe 403 will move outward and be fixed by the buckle in the initial groove 409. Then, it can be manually adjusted according to the thickness of the steel pipe 1. If the thickness of the steel pipe is greater than that of the corrugated pipe 403, directly install the inner liner 3 with the corrugated pipe 403 on the inner annular surface of the steel pipe 1. Then open the buckle of the initial groove 409. After opening the buckle, the movable rod 408 can move away from the center and outward in the outer expansion groove 410. At this time, the corrugated pipe 403 will be fixed by the buckle in the initial groove 409. The bellows 403 will move away from the center and outward under the action of the return spring 406 until the outer annular surface of the bellows 403 is supported on the inner annular surface of the steel pipe 1. If the size of the steel pipe is smaller than the bellows 403, the movable rod 408 can be moved into the inner pressure groove 411 by rotating the rotating turntable 2. The movement of the movable rod 408 in the inner pressure groove 411 will drive the bellows 403 to move inward until the bellows 403 can enter the steel pipe 1. Then, the bellows 403 is installed into the steel pipe 1 and the rotating turntable 2 is released to allow it to return to its normal position under the action of the return spring 406.
[0024] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A corrugated steel liner, characterized in that, The steel pipe (1) is rotatably connected to the front surface of the steel pipe (1), and an inner liner (3) is slidably connected to the rear surface of the rotating turntable (2). An adjusting device (4) is fixedly connected to the outer annular surface of the inner liner (3). There are multiple adjusting devices (4), and a sliding plate (5) is slidably connected to the inner surface of the inner liner (3).
2. The corrugated steel liner according to claim 1, characterized in that, The adjusting device (4) includes a sliding sleeve (401), a sliding rod (402), a bellows (403), a slot (404), a mounting ring (405), a return spring (406), a rotating disk (407), a movable rod (408), an initial groove (409), an outer expansion groove (410), and an inner pressure groove (411). The sliding sleeve (401) is fixedly connected to the outer annular surface of the inner liner tube (3).
3. A corrugated steel liner according to claim 2, characterized in that, The sliding rod (402) is slidably connected to the inner annular surface of the sliding sleeve (401), and the corrugated pipe (403) is fixedly connected to the other end of the sliding rod (402).
4. A corrugated steel liner according to claim 3, characterized in that, The slot (404) is fixedly disposed on the inner surface of the corrugated pipe (403) near the center, and the mounting ring (405) is fixedly connected to the inner surface of the corrugated pipe (403) near the center.
5. A corrugated steel liner according to claim 4, characterized in that, The reset spring (406) is fixedly connected to the inner surface of the mounting ring (405) near the center, and the rotating disk (407) is rotatably connected to the front surface of the bellows (403).
6. A corrugated steel liner according to claim 5, characterized in that, The movable rod (408) is rotatably connected to the inner annular surface of the rotating disk (407), and the initial groove (409) is fixedly set on the rear surface of the rotating disk (2).
7. A corrugated steel liner according to claim 6, characterized in that, The outer expansion groove (410) is fixedly installed at the upper end of the initial groove (409), and the inner pressure groove (411) is fixedly installed at the lower right end of the initial groove (409).