A method for non-excavation pipe spiral winding repair device
By employing a belt drive and bevel gear structure in the trenchless pipeline spiral winding repair device, the problem of poor synchronization of traditional devices under different pipe diameters has been solved, and the repair device has achieved stable operation and high-quality repair in the pipeline.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RONGHONG CONSTR GRP CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional repair devices struggle to achieve precise synchronization of expansion and contraction when adapting to different pipe diameters, leading to radial displacement deviations in the support structure and affecting the uniformity and quality of pipe repair.
The device employs a structure with three sets of adjusting components connected by belt drive, including a synchronous pulley and bevel gears. A first motor drives the synchronous pulley to rotate, which in turn drives the belt drive, enabling synchronous extension and retraction adjustment of the three adjusting components. A second motor provides power, and an ultraviolet lamp is used for material curing. Springs provide cushioning to ensure stable operation of the device within the pipeline.
The radial displacement of the repair device was made consistent under different pipe diameter conditions, ensuring that the support center coincided with the pipe axis, and improving the uniformity of the repair material on the inner wall of the pipe and the repair quality.
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Figure CN224315768U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline repair technology, and in particular to a spiral winding repair device for trenchless pipelines. Background Technology
[0002] Currently, urban sewage pipes are the "underground lifeline" of cities, shouldering the important task of urban sewage and drainage. However, due to the complex underground environment, the pipes are prone to aging and corrosion after long-term use. In addition, the sewage transported by the pipes may sometimes contain some corrosive chemical components. These factors can easily lead to water leakage in the pipes, resulting in problems such as road flooding and collapse. Therefore, it is necessary to repair the pipes.
[0003] However, when traditional repair devices adapt to different pipe diameters, they typically use multiple independently driven adjustment components to control radial expansion and contraction. Due to the dispersion of power sources, delays in control signals, or accumulation of mechanical tolerances, it is difficult to achieve precise synchronization of the expansion and contraction of each component, resulting in radial displacement deviation in the device's support structure. Utility Model Content
[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a spiral winding repair device for trenchless pipelines, which solves the problem that the expansion and contraction cannot be synchronized, resulting in radial displacement deviation of the support structure.
[0005] To achieve the purpose of this utility model, the following technical solution is adopted: a spiral winding repair device for trenchless pipelines, characterized in that it includes an annular frame, three sets of adjusting components axially evenly distributed on the annular frame, and three sets of transmission components connected one-to-one with the three sets of adjusting components; the adjusting components include a connecting plate fixedly connected to the annular frame and a synchronous wheel rotatably mounted on the connecting plate; the synchronous wheels of the three sets of transmission components are connected by belt drive; a first bevel gear is fixedly connected to one side of the synchronous wheel; a second bevel gear meshes with one side of the first bevel gear; a sleeve is fixedly sleeved in the inner hole of the second bevel gear; the sleeve passes through the annular frame and is rotatably connected to the annular frame;
[0006] The sleeve is connected to a threaded rod via an internal thread. One end of the threaded rod is fixedly connected to a second connecting block. A connecting rod is fixedly connected to one side of the second connecting block. The connecting rod passes through the annular frame and is slidably connected to the annular frame. The transmission assembly is connected to the second connecting block.
[0007] A further improvement is that the transmission assembly includes a base plate, which is fixed to the side of the second connecting block. A second motor is fixedly connected to one side of the base plate, and a rolling wheel is fixedly connected to the output end of the second motor.
[0008] A further improvement is that a spring is fixedly connected to the other side of the base plate, and the other end of the spring is fixedly connected to the second connecting block.
[0009] A further improvement is that the annular frame has a support plate inside, and the support plate is axially fixedly connected to multiple connecting rods, which are fixedly connected to the annular frame.
[0010] A further improvement is that a first connecting block is fixedly connected to the other end of the threaded rod, and the first connecting block and the second connecting block are fixedly connected by a connecting rod.
[0011] A further improvement is that one of the three sets of adjustment components is equipped with a first motor, which is fixedly mounted on the connecting plate and its power output end is connected to the synchronous pulley via a rotating shaft.
[0012] A further improvement is that an ultraviolet lamp is fixedly connected to one side of the base plate.
[0013] A further improvement is that the second motor and the rolling wheel constitute a rotating unit, and there are two sets of them, which are symmetrically fixed to both sides of the base plate.
[0014] The beneficial effects of this utility model are as follows:
[0015] This technical solution is used for a trenchless pipeline spiral winding repair device. The first motor of one of the adjustment components drives the annular belt to rotate, and the belt and the synchronous pulleys of the three adjustment components mesh to achieve synchronous and equidistant telescopic adjustment of the three adjustment components. This mechanical synchronization mechanism effectively ensures the consistency of the radial displacement of the three transmission components when the device adapts to different pipe diameters, thereby ensuring that the support center of the repair device in the pipeline always coincides with the pipeline axis, avoiding the eccentricity or tilting problem caused by asynchronous adjustment, and significantly improving the uniformity of the repair material on the inner wall of the pipeline and the repair quality. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0017] Figure 1 This is a structural diagram of the entire utility model;
[0018] Figure 2 This is a structural diagram showing the connection relationship of the annular frame of this utility model;
[0019] Figure 3 This is a structural diagram of the adjustment component of this utility model;
[0020] Figure 4 This is a structural diagram of the transmission component of this utility model.
[0021] Legend:
[0022] 1. Ring frame; 2. Adjustment assembly; 3. Transmission assembly; 101. Support plate; 102. Connecting rod; 103. Belt; 201. First motor; 202. Connecting plate; 203. Synchronous pulley; 204. First bevel gear; 205. Second bevel gear; 206. Threaded rod; 207. Sleeve; 208. First connecting block; 209. Connecting rod; 210. Second connecting block; 301. Base plate; 302. Ultraviolet lamp; 303. Second motor; 304. Rolling wheel; 305. Spring. Detailed Implementation
[0023] 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.
[0024] Reference Figures 1-4 This utility model embodiment proposes a spiral winding repair device for trenchless pipelines, including an annular frame 1, three sets of adjusting components 2 axially evenly distributed on the annular frame 1, and three sets of transmission components 3 connected one-to-one with the three sets of adjusting components 2. The annular frame 1 is provided with a support plate 101 inside. The support plate 101 inside the annular frame 1 is fixedly connected to the annular frame 1 through multiple connecting rods 102 to form a stable support structure, which enhances the overall strength and stability of the annular frame 1, ensures that the device will not deform during operation, and guarantees the normal operation of each component.
[0025] The adjusting assembly 2 includes a connecting plate 202 fixedly connected to the annular frame 1 and a synchronous pulley 203 rotatably mounted on the connecting plate 202. The synchronous pulleys 203 of the three sets of transmission assemblies 3 are connected to each other by a belt 103. A first bevel gear 204 is fixedly connected to one side of the synchronous pulley 203. A second bevel gear 205 meshes with one side of the first bevel gear 204. A sleeve 207 is fixedly sleeved in the inner hole of the second bevel gear 205. The sleeve 207 passes through the annular frame 1 and is rotatably connected to the annular frame 1.
[0026] The sleeve 207 is connected to a threaded rod 206 via an internal thread. One end of the threaded rod 206 is fixedly connected to a second connecting block 210. The second connecting block 210 is located outside the outer ring surface of the annular frame 1. A connecting rod 209 is fixedly connected to one side of the second connecting block 210. The connecting rod 209 passes through the annular frame 1 and is slidably connected to the annular frame 1. The transmission assembly 3 is connected to the second connecting block 210.
[0027] The transmission assembly 3 includes a base plate 301, which is fixed to the side of the second connecting block 210. An ultraviolet lamp 302 is fixedly connected to one side of the base plate 301. A second motor 303 is fixedly connected to one side of the base plate 301, and a rolling wheel 304 is fixedly connected to the output end of the second motor 303. The second motor 303 and the rolling wheel 304 constitute a rotating unit, and two sets are provided, symmetrically fixed to both sides of the base plate 301.
[0028] A spring 305 is fixedly connected to the other side of the base plate 301, and the other end of the spring 305 is fixedly connected to the second connecting block 210.
[0029] The other end of the threaded rod 206 is fixedly connected to a first connecting block 208, and the first connecting block 208 and the second connecting block 210 are fixedly connected by two sets of upper and lower connecting rods 209.
[0030] It is understandable that by setting up the connecting block 208 and the two sets of connecting rods 209, the second connecting block 210 can be made to move radially and retract stably.
[0031] One of the three sets of adjustment components 2 is provided with a first motor 201, which is fixedly installed on the connecting plate 202 and its power output end is connected to the synchronous pulley 203 through a rotating shaft.
[0032] Understandably, one of the three sets of adjusting components 2 is equipped with a first motor 201, which drives a synchronous pulley 203 to rotate. Since the synchronous pulley 203 meshes with a belt 103, it in turn drives the belt 103 to rotate. The movement of the belt 103 causes the synchronous pulleys 203 of the other two sets of adjusting components 2 to rotate accordingly, achieving synchronized operation of the three sets of adjusting components 2. When the synchronous pulley 203 rotates, it drives the first bevel gear 204, which is fixed to it, to rotate. The first bevel gear 204 meshes with a second bevel gear 205, causing the second bevel gear 205 to rotate. The sleeve 207, which is fixedly fitted onto the second bevel gear 205, also rotates. Since the sleeve 207 is threadedly connected to the threaded rod 206, the rotation of the sleeve 207 causes the threaded rod 206 to move linearly. The threaded rod 206 drives the second connecting block 210 to move linearly synchronously, thereby realizing the adjusting function of the adjusting component 2 and adjusting the position of the transmission component 3 to adapt to the repair needs of pipes with different diameters.
[0033] When the second motor 303 operates, it drives the rolling wheel 304 to rotate, providing power for the device's movement within the pipeline, allowing it to move freely. The ultraviolet light emitted by the ultraviolet lamp 302 cures the pipeline repair material, completing the repair work. The spring 305 acts as a buffer and pressure regulator, ensuring the stability of the device's operation within the pipeline.
[0034] The working principle of this utility model is as follows: In use, the annular frame 1 and the support plate 101 fixed inside by the connecting rod 102 constitute a stable support structure. The first motor 201 of one set of adjustment components 2 drives the synchronous wheel 203 to rotate. The annular belt 103 meshing with the synchronous wheel 203 drives the synchronous wheels 203 of the other two sets of adjustment components 2 to rotate synchronously. Each synchronous wheel 203 drives the first bevel gear 204 coaxial with it to rotate, which drives the second bevel gear 205 and the sleeve 207 meshing with it to rotate. The internal thread of the sleeve 207 drives the threaded rod 206 to move axially linearly, thereby driving the second connecting block 210 to move radially, realizing the synchronous adjustment of the three sets of adjustment components 2 to adapt to different pipe diameters. In the transmission component 3 fixed on the side of the second connecting block 210, the second motor 303 drives the rolling wheel 304 to rotate to provide power for the device to move in the pipeline. At the same time, the ultraviolet lamp 302 cures the repair material, and the spring 305 provides buffering and pressure adjustment to ensure stable operation.
[0035] 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 spiral winding repair device for trenchless pipelines, characterized in that, The device includes an annular frame (1), three sets of adjustment components (2) axially evenly distributed on the annular frame (1), and three sets of transmission components (3) corresponding to the three sets of adjustment components (2). The adjustment component (2) includes a connecting plate (202) fixedly connected to the annular frame (1) and a synchronous pulley (203) rotatably mounted on the connecting plate (202). The synchronous pulleys (203) of the three sets of transmission components (3) are connected to each other by a belt (103). A first bevel gear (204) is fixedly connected to one side of the synchronous pulley (203). A second bevel gear (205) meshes with one side of the first bevel gear (204). A sleeve (207) is fixedly sleeved in the inner hole of the second bevel gear (205). The sleeve (207) passes through the annular frame (1) and is rotatably connected to the annular frame (1). The sleeve (207) is connected to a threaded rod (206) via an internal thread. One end of the threaded rod (206) is fixedly connected to a second connecting block (210). A connecting rod (209) is fixedly connected to one side of the second connecting block (210). The connecting rod (209) passes through the annular frame (1) and is slidably connected to the annular frame (1). The transmission assembly (3) is connected to the second connecting block (210).
2. The spiral winding repair device for trenchless pipelines according to claim 1, characterized in that, The transmission assembly (3) includes a base plate (301), which is fixed to the side of the second connecting block (210). A second motor (303) is fixedly connected to one side of the base plate (301), and a rolling wheel (304) is fixedly connected to the output end of the second motor (303).
3. The spiral winding repair device for trenchless pipelines according to claim 2, characterized in that, A spring (305) is fixedly connected to the other side of the base plate (301), and the other end of the spring (305) is fixedly connected to the second connecting block (210).
4. The spiral winding repair device for trenchless pipelines according to claim 1, characterized in that, The annular frame (1) has a support plate (101) inside, and the support plate (101) is axially fixedly connected to a plurality of connecting rods (102), and the connecting rods (102) are fixedly connected to the annular frame (1).
5. The spiral winding repair device for trenchless pipelines according to claim 1, characterized in that, The other end of the threaded rod (206) is fixedly connected to a first connecting block (208), and the first connecting block (208) and the second connecting block (210) are fixedly connected by a connecting rod (209).
6. The spiral winding repair device for trenchless pipelines according to claim 1, characterized in that, One of the three sets of adjustment components (2) is provided with a first motor (201), which is fixedly installed on the connecting plate (202) and the power output end is connected to the synchronous pulley (203) through the rotating shaft.
7. A spiral winding repair device for trenchless pipelines according to claim 2, characterized in that, An ultraviolet lamp (302) is fixedly connected to one side of the base plate (301).
8. A spiral winding repair device for trenchless pipelines according to claim 2, characterized in that, The second motor (303) and the rolling wheel (304) constitute a rotating unit, and there are two sets of them, which are symmetrically fixed to both sides of the base plate (301).