An adaptive anti-slip-off pipe repair device
By using the arc-shaped plate structure and anti-slip component design of the adaptive anti-slip pipe repairer, the problems of insufficient anti-slip and adaptive capabilities in existing technologies are solved, and stable repair results are achieved under complex working conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI HENGSHENG SCI & TECH DEV GRP CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-08-04
AI Technical Summary
Existing pipe repair kits are inadequate in terms of anti-slip and self-adaptive capabilities. They are prone to loosening and slipping, especially when pipes are subjected to fluctuations in medium pressure, vibration, or temperature changes. They are also difficult to fit tightly to pipes of different diameters or with uneven surfaces.
It adopts a two-piece arc plate structure and is equipped with anti-slip components, including extension springs, stoppers and barbed tooth design. Through elastic compression and three-dimensional limiting structure, it achieves self-adaptive anti-slip and enhances axial anti-slip capability.
It improves the anti-slip performance of the repair tool under complex working conditions, enhances the fit stability and structural stability with the pipeline, adapts to different pipe diameters and surface morphologies, and reduces the risk of loosening and slippage.
Smart Images
Figure CN224592939U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of pipe repair devices, and specifically relates to an adaptive anti-slip pipe repair device. Background Technology
[0002] In the pipeline transportation field, when pipelines leak due to corrosion, external impact, or other reasons, pipeline repair kits are typically used for emergency repairs or permanent reinforcement. Existing pipeline repair kits mostly employ a two-piece arc-shaped plate structure fitted over the pipeline, secured by bolts or rubber pads. However, these types of repair kits have the following shortcomings in practical applications:
[0003] Insufficient anti-slip capability: Traditional structures rely on bolt preload or rubber friction. When the pipeline is subjected to fluctuations in medium pressure, vibration, or temperature changes, the bolts are prone to loosening and the rubber pads are prone to wear, causing the repair kit to slip off along the pipeline axis, affecting the repair effect and even causing secondary leakage.
[0004] Limited adaptability: For pipes of different diameters or with uneven surfaces, the rigid structure of traditional repairers is difficult to fit tightly, resulting in gaps and reduced anti-slip effect. Furthermore, customized adjustments are required during installation, increasing construction difficulty and cost. Utility Model Content
[0005] This utility model addresses the problems of existing technologies by providing an adaptive anti-slip pipe repair device, the specific technical solution of which is as follows:
[0006] An adaptive anti-slip pipe repairer includes two arc-shaped plates. In the installed state, the two arc-shaped plates are symmetrically fitted together to form a cylindrical structure that is sleeved on the outside of the pipe. Anti-slip components are provided at both ends of the arc-shaped plates.
[0007] The anti-slip component includes multiple sets of extended elastic pieces evenly arranged in the circumferential direction. There is a gap between two adjacent sets of extended elastic pieces to form a gap groove. A stop is installed in the gap groove. In the installed state, the free end of the extended elastic piece is turned outward and presses the stop to adhere to the outer surface of the pipe.
[0008] As a further technical solution of this utility model, the extension piece gradually tilts inward to form an inwardly narrowed opening when it extends towards the free end.
[0009] As a further technical solution of this utility model, the stop member includes a rib, an upper hanging arm, and a lower hanging arm, wherein the rib is inserted into the gap groove, the upper hanging arm is connected to the outside of the rib and fits against the outer surface of two adjacent extended spring pieces in the gap groove, and the lower hanging arm is connected to the inside of the rib and fits against the inner surface of two adjacent extended spring pieces in the gap groove. The rib, the upper hanging arm, and the lower hanging arm form an "I" structure that is locked between two adjacent extended spring pieces.
[0010] As a further technical solution of this utility model, the inner side of the lower hanging arm has radially extending toothed ridges, and the toothed ridges are arranged in multiple rows at intervals along the axial direction.
[0011] As a further technical solution of this utility model, the toothed edge is designed to form a barb structure at an angle, and the toothed edges distributed at both ends of the arc-shaped plate are symmetrical in their angled directions.
[0012] As a further technical solution of this utility model, the outer side of the extension spring has a concave stepped groove, and in the installed state, the upper hanging arm is embedded in the stepped groove.
[0013] The beneficial effects of this utility model are as follows:
[0014] (1) Innovative design of adaptive anti-slip structure;
[0015] Elastic compression and gap groove cooperation: By extending the free end of the spring and turning it outward to compress the stop to cover the pipe surface, the gap groove allows the spring to move radially. Combined with the spring's reset pressure, a dynamic anti-slip force is formed, breaking through the limitations of traditional rigid fixing. It can adapt to the surface curvature of pipes of different diameters and improve the fit stability.
[0016] The three-dimensional locking of the "I"-shaped stop: The stop is formed by the "I" structure of the rib, upper arm and lower arm, which simultaneously locks the inner and outer surfaces of the extension spring. Compared with the traditional single plane contact, it achieves three-dimensional limiting, prevents the stop from falling off and enhances the axial anti-slip capability.
[0017] (2) Two-way optimization of the anti-reverse function;
[0018] Symmetrical anti-reverse design of barbed teeth: The inclined teeth form a barbed structure, and the inclined direction of the teeth at both ends of the arc plate is symmetrical, which can simultaneously prevent the pipe repairer from sliding in two axial directions. Compared with the unidirectional anti-reverse structure, it achieves all-directional anti-slip, which is especially suitable for complex working conditions where the pipeline is subjected to fluid impact or vibration.
[0019] Toothed pressure concentration design: Multiple axially spaced toothed edges replace planar contact, reducing the contact area to improve crimping strength. By increasing the friction with the pipe surface through local high pressure, it solves the problem of insufficient pressure caused by traditional large-area contact.
[0020] (3) Detailed reinforcement of structural stability;
[0021] The inward-curving design of the extension spring: The spring is inclined inward to the free end to form a curvature, which reserves space for the spring to fold outward under pressure, so that the spring can generate sufficient elastic deformation under different pipe diameters, ensuring the contact pressure between the stop and the pipe, and improving the structural self-adaptability.
[0022] Axial positioning of stepped groove and upper hanging arm: The stepped groove on the outer side of the extended spring is embedded in the upper hanging arm of the stop, which restricts the axial relative displacement of the two. Together with the "I" structure, it forms a double positioning, avoiding the anti-slip failure caused by loose parts in the traditional structure. Attached Figure Description
[0023] Figure 1 A schematic diagram of the overall structure of an adaptive anti-slip pipe repair device is shown.
[0024] Figure 2 A schematic diagram of the anti-slip component is shown;
[0025] Figure 3 A schematic diagram of the stop component is shown.
[0026] Legend:
[0027] 100. Curved plate; 200. Anti-slip component; 210. Extension spring; 211. Step groove; 220. Gap groove; 230. Stop; 231. Rib; 232. Upper hanging arm; Lower hanging arm (233), Lower hanging arm; 234. Toothed edge. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.
[0029] Figure 1 A schematic diagram of the overall structure of an adaptive anti-slip pipe repair device is shown. Figure 1 The adaptive anti-slip pipe repair device includes two arc-shaped plates 100. In the installed state, the two arc-shaped plates 100 are symmetrically matched to form a cylindrical structure that is sleeved on the outside of the pipe. Anti-slip components 200 are provided at both ends of the arc-shaped plates 100. In the installed state, the anti-slip components 200 are attached to the surface of the pipe to limit the axial sliding of the arc-shaped plates 100.
[0030] Figure 2 A schematic diagram of the anti-slip component 200 is shown; Figure 2 In the process, the anti-slip component 200 includes multiple sets of extended elastic pieces 210 evenly arranged in the circumferential direction. There is a gap between two adjacent sets of extended elastic pieces 210 to form a gap groove 220. A stop member 230 is installed in the gap groove 220. In the installed state, the free end of the extended elastic piece 210 is turned outward and presses the stop member 230 to cover the outer surface of the pipe. The setting of the gap groove 220 allows the free end of the extended elastic piece 210 to move radially. The reset pressure of the extended elastic piece 210 after being squeezed outward presses the stop member 230, so that the stop member 230 is tightly pressed against the outer surface of the pipe, ensuring contact pressure and realizing axial relative sliding between the arc plate 100 and the pipe.
[0031] See also Figure 2 As the extension spring 210 extends toward the free end, it gradually tilts inward; that is, as the extension spring 210 gradually extends upward along the axial direction, its radial width gradually decreases to form an inward opening, thereby reserving a certain amount of outward turning space for the extension spring 210 when it is squeezed by the pipe.
[0032] Figure 3 A schematic diagram of the stop member 230 is shown; Figure 3 In this structure, the stop 230 includes a rib 231, an upper hanging arm 232, a lower hanging arm 233, and a toothed ridge 234. The rib 231 is inserted into the gap groove 220. The upper hanging arm 232 is connected to the outside of the rib 231 and fits against the outer surface of two adjacent extended spring pieces 210 in the gap groove 220. The lower hanging arm 233 is connected to the inside of the rib 231 and fits against the inner surface of two adjacent extended spring pieces 210 in the gap groove 220. The rib 231, the upper hanging arm 232, and the lower hanging arm 233 form an "I" structure that is engaged between two adjacent extended spring pieces 210. The "I" structure of the stop 230 prevents the stop 230 from falling out after being inserted into the gap groove 220 and also avoids radial relative displacement between the stop 230 and the extended spring pieces 210.
[0033] See also Figure 3 The inner side of the lower arm 233 has radially extending toothed ridges 234, and multiple toothed ridges 234 are spaced apart along the axial direction; the toothed ridges 234 replace the lower arm 233 to press the outer surface of the pipe, reduce the overall contact area, and increase the pressure strength on the pipe pressing surface.
[0034] See also Figure 3 The toothed ridges 234 are designed at an angle to form a barb structure, and the toothed ridges 234 distributed at both ends of the arc plate 100 are symmetrical in their angled directions. The angled design of the toothed ridges 234 can form a barb structure to prevent the arc plate 100 from moving in the reverse direction. The symmetry of the toothed ridges 234 at both ends indicates that the reverse direction is opposite. After the arc plate 100 is installed, it can form two axial directions of reverse resistance to ensure the stability of the arc plate 100.
[0035] The outer side of the extension spring 210 has a recessed stepped groove 211. In the installed state, the upper hanging arm 232 is embedded in the stepped groove 211. The stepped groove 211 restricts the upper hanging arm 232, ensuring the relative axial stability between the extension spring 210 and the stop member 230.
[0036] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. An adaptive anti-slip pipe repair device, comprising two arc-shaped plates (100), wherein, in the installed state, the two arc-shaped plates (100) symmetrically engage to form a cylindrical structure sleeved around the pipe, characterized in that: Both ends of the arc-shaped plate (100) are provided with anti-slip components (200); The anti-slip component (200) includes multiple sets of extended elastic pieces (210) evenly arranged in the circumferential direction. There is a gap between two adjacent sets of extended elastic pieces (210) to form a gap groove (220). A stop (230) is installed in the gap groove (220). In the installed state, the free end of the extended elastic piece (210) is turned outward and presses the stop (230) to adhere to the outer surface of the pipe.
2. The adaptive anti-slip pipe repair device according to claim 1, characterized in that: The extension piece (210) gradually tilts inward as it extends toward the free end, forming an inwardly constricted opening.
3. The adaptive anti-slip pipe repair device according to claim 2, characterized in that: The stop (230) includes a rib (231), an upper hanging arm (232), and a lower hanging arm (233). The rib (231) is inserted into the gap groove (220). The upper hanging arm (232) is connected to the outside of the rib (231) and fits against the outer surface of two adjacent extension springs (210) in the gap groove (220). The lower hanging arm (233) is connected to the inside of the rib (231) and fits against the inner surface of two adjacent extension springs (210) in the gap groove (220). The rib (231), the upper hanging arm (232), and the lower hanging arm (233) form an "I" structure that is engaged between two adjacent extension springs (210).
4. The adaptive anti-slip pipe repair device according to claim 3, characterized in that: The inner side of the lower arm (233) has radially extending toothed ridges (234), which are spaced in multiple rows along the axial direction.
5. The adaptive anti-slip pipe repair device according to claim 4, characterized in that: The toothed edge (234) is designed to be inclined to form a barb structure, and the toothed edge (234) distributed at both ends of the arc plate (100) is symmetrical in the inclination direction.
6. The adaptive anti-slip pipe repair device according to claim 3, characterized in that: The outer side of the extension spring (210) has a recessed stepped groove (211), and in the installed state, the upper hanging arm (232) is embedded in the stepped groove (211).