一种管道修复用扩张支撑装置
By designing a fixed base, an adjustment mechanism, and a self-locking mechanism, the problem of limited expansion diameter in existing pipe repair devices is solved. This enables multiple sets of expansion plates to expand synchronously and self-lock, ensuring stable support force and adapting to the pipe repair needs of different diameters.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN HOUDE TESTING TECH CO LTD
- Filing Date
- 2025-09-09
- Publication Date
- 2026-07-17
AI Technical Summary
Existing pipe repair devices have limited expansion diameter range, which cannot meet the repair needs of larger pipe diameters. They are cumbersome to operate and inefficient. The expansion plate needs to be adjusted separately and lacks a self-locking function, resulting in unstable support force and potential safety hazards.
An expansion support device consisting of a fixed seat, an adjustment mechanism, a movable seat, and a lead screw is used. Multiple sets of expansion plates are expanded radially synchronously through the lead screw and a self-locking mechanism. The self-locking mechanism, consisting of a ratchet and a pawl, ensures stable expansion and reliable support force.
It enables rapid adaptation to different pipe diameters without the need to replace parts. Multiple sets of expansion plates expand simultaneously, providing stable support, preventing support failure, and ensuring reliable repair.
Smart Images
Figure CN224516309U_ABST
Abstract
Claims
1. A pipe repair expansion support device, comprising a sleeve (1), two groups of fixed seats (2), a moving seat (3) and a lead screw (4), characterized in that: The surfaces of the two sets of fixed seats (2) and movable seats (3) are fixedly connected with adjustment mechanisms (5). The surface of the sleeve (1) is symmetrically provided with two sets of guide grooves (6). The interior of the two sets of guide grooves (6) is slidably connected with a movable mechanism (7). One end of the lead screw (4) is fixedly connected with a self-locking mechanism (8). The adjustment mechanism (5) includes several sets of lower rotating seats (501) fixedly connected to the surfaces of two sets of fixed seats (2) and movable seats (3). Each set of lower rotating seats (501) has a lower connecting member (502) rotatably connected to one side. One end of the lower connecting member (502) is threadedly connected to an upper connecting member (503). The surface of the upper connecting member (503) is provided with several sets of adjustment holes (504). One side of the upper connecting member (503) is rotatably connected to an upper rotating seat (505). The moving mechanism (7) includes two sets of sliding blocks (701) slidably connected inside two sets of guide grooves (6), and a moving block (702) is fixedly connected to one side of each set of sliding blocks (701). The self-locking mechanism (8) includes a ratchet (801) fixedly connected to one end of the lead screw (4), a pawl (802) is engaged on one side of the ratchet (801), and a spring (803) is provided on one side of the pawl (802).
2. An expansion support device for pipe rehabilitation according to claim 1, characterized in that: The two sets of fixed seats (2) are threaded to the surface of the sleeve (1), and several sets of lower rotating seats (501) are evenly arranged on the surfaces of the two sets of fixed seats (2) and the moving seats (3).
3. The expansion support device for pipe rehabilitation of claim 1, wherein: The lower rotating seats (501) of each group are on the same horizontal line, and an expansion plate (9) is fixedly connected to one side of the upper rotating seats (505) of each group.
4. The expansion support device for pipe rehabilitation of claim 1, wherein: The movable seat (3) is fixedly connected to one side of the two sets of sliding blocks (701), and the movable block (702) is threadedly connected to the surface of the lead screw (4).
5. The expansion support device for pipe rehabilitation of claim 1, wherein: The sleeve (1) is fixedly connected to an inner bearing seat (10), and an outer bearing seat (11) is provided at one end of the sleeve (1). The lead screw (4) is rotatably connected to the inner bearing seat (10) and the outer bearing seat (11).
6. The expansion support device for pipe rehabilitation of claim 1, wherein: One end of the sleeve (1) is provided with an annular seat (12), and the pawl (802) is rotatably connected to one side of the annular seat (12).
7. A pipe rehabilitation expansion support apparatus as defined in claim 6, wherein: A fixing block (13) is fixedly connected to one side of the annular seat (12), and the spring (803) is fixedly connected to one side of the fixing block (13). The fixing block (13) is located below the pawl (802).
8. The expansion support device for pipe rehabilitation of claim 1, wherein: One end of the lead screw (4) is fixedly connected to a handle (14), and the surface of the handle (14) is provided with a protrusion (15).
9. The expansion support device for pipe rehabilitation of claim 1, wherein: The sleeve (1) is rotatably connected to a support base (16), and two sets of support rods (17) are symmetrically inserted below the support base (16).
10. The expansion support device for pipeline repair according to claim 1, characterized in that: A plug-in seat (18) is fixedly connected to one side of the sleeve (1), and a rotating rod (19) is inserted into the inside of the plug-in seat (18).