Special equipment for repairing inner wall of oil pipe

Abstract

The utility model discloses special equipment for repairing the inner wall of an oil pipe, and relates to the technical field of pipeline repairing, the special equipment comprises a handle, a sleeve, a sliding cylinder, a spraying repairing mechanism and a stable walking mechanism, the bottom end of the handle is fixedly connected with the sleeve, the outer surface of the sleeve is provided with a through threaded groove, and the threaded groove is internally in threaded connection with a locking block; by means of the stable walking mechanism composed of the rolling wheels driven by the springs and the like, the pipeline repairing device can be automatically centered and stably move in a pipeline, the equidistant state that the repairing head and the pipe wall are opposite is ensured, guarantee is provided for high-quality repairing, the camera, the repairing material repairing pipe and the UV lamp belt are integrated at the front end of the pipeline repairing device, and the repairing device is convenient to use and high in practicability. During operation, visual accurate positioning can be realized by using the camera; by pressing the external spherical air bag, the repairing material is extruded from the repairing pipe in a simple and reliable air pressure mode for coating; and finally, the UV lamp strip is started for rapid in-situ curing, and the efficiency and quality of point-shaped repairing operation are improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline repair technology, specifically a special device for repairing the inner wall of oil pipes. Background Technology

[0002] Currently, various repair technologies exist in the industry for repairing localized corrosion and cracks on the inner walls of oil and gas pipelines. The traditional method involves open-cut pipe replacement, which involves excavating the damaged section of the pipeline, cutting off and replacing it. This method is technically mature and provides reliable repair results. With technological advancements, trenchless repair technologies are gradually becoming mainstream. For example, specialized pipeline repair robots, equipped with various tools such as grinding, adhesive application, and curing, can enter the pipeline to repair damaged areas, avoiding large-scale excavation.

[0003] However, the aforementioned existing repair technologies, especially for a large number of common, small-scale damages, generally suffer from the significant problem of high costs. Excavation and pipe replacement involves substantial earthwork, machinery, and labor, has a long construction period, and impacts traffic and the environment, resulting in enormous overall costs. Using it to treat a small corrosion spot or crack is clearly uneconomical. While highly automated pipeline repair robots avoid excavation, the robot itself, ground control system, power unit, and other equipment are extremely expensive to build and maintain, and their operation requires skilled personnel. Using such heavy and expensive equipment to handle routine, small-scale pipeline damage is like "using a cannon to kill a mosquito," leading to a severe mismatch between repair costs and actual needs, making it difficult to economically carry out many necessary preventative maintenance and early repair tasks.

[0004] Therefore, we have proposed a special device for repairing the inner wall of oil pipes. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a special device for repairing the inner wall of oil pipes, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A special device for repairing the inner wall of an oil pipe includes a handle, a sleeve, a slide cylinder, a spraying repair mechanism, and a stable walking mechanism. The bottom end of the handle is fixedly connected to the sleeve. The outer surface of the sleeve has a through threaded groove, and a locking block is threadedly connected inside the threaded groove. The slide cylinder is slidably connected inside the sleeve. The surface of the slide cylinder is provided with a spraying repair mechanism. The spraying repair mechanism includes a storage cylinder, a repair tube, a connecting tube, and a spherical airbag. The storage cylinder is fixedly connected to the outer surface of the slide cylinder. Two repair tubes are fixedly connected to the outer surface of the storage cylinder. The bottom end of the storage cylinder is fixedly connected to the connecting tube. The connecting tube penetrates the inner wall of the slide cylinder and extends into the sleeve. It passes through a through groove on the sleeve and is fixedly connected to the spherical airbag. The spherical airbag is fixed to the surface of the sleeve. The outer side of the slide cylinder is provided with a stable walking mechanism.

[0008] As a further embodiment of this utility model, a one-way valve is fixedly installed on both the spherical airbag and the repair tube.

[0009] As a further embodiment of this utility model: a UV lamp strip is fixedly connected between the two repair tubes.

[0010] As a further embodiment of this invention, a camera is fixedly mounted on the surface of the UV light strip.

[0011] As a further embodiment of this utility model: the stable walking mechanism includes a telescopic rod, a spring, a moving plate and rollers. Four telescopic rods that are evenly distributed in a circular pattern are fixedly connected to the outer surface of the slide cylinder. The surface of the telescopic rod is fitted with a spring, and the outer end of the telescopic rod is fixedly connected to a moving plate. A moving groove is opened on the moving plate, and a roller is rotatably connected in the moving groove.

[0012] As a further embodiment of this utility model, an anti-slip sleeve is fixedly connected to the surface of the handle.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes a stable walking mechanism composed of spring-driven rollers to automatically center and move smoothly within a pipe, ensuring equidistant positioning of the repair head relative to the pipe wall and guaranteeing high-quality repair. Its front end integrates a camera, a repair material tube, and a UV light strip. During operation, the camera enables precise visual positioning; by pressing the external spherical airbag, repair material is extruded from the repair tube using a simple and reliable air pressure method for coating; finally, the UV light strip is activated for rapid in-situ curing. This design is not only simple and cost-effective but also overcomes the blindness of traditional operations, significantly improving the accuracy, efficiency, and quality of point-like repair work. Attached Figure Description

[0015] Figure 1 A schematic diagram of a special equipment for repairing the inner wall of an oil pipe;

[0016] Figure 2 This is an enlarged structural diagram of the front end of the slide in a special equipment for repairing the inner wall of an oil pipe.

[0017] In the diagram: 1. Handle; 2. Anti-slip sleeve; 3. Connecting pipe; 4. One-way valve; 5. Spherical airbag; 6. Sleeve; 7. Slide cylinder; 8. Moving plate; 9. Telescopic rod; 10. Roller; 11. Spring; 12. Storage cylinder; 13. Repair pipe; 14. Camera; 15. UV light strip. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Please see Figures 1-2 In this embodiment of the utility model, a special device for repairing the inner wall of an oil pipe includes a handle 1, a sleeve 6, a slide 7, a spraying repair mechanism, and a stable walking mechanism.

[0020] A non-slip sleeve 2 is fixedly connected to the surface of the handle 1, and a sleeve 6 is fixedly connected to the bottom end of the handle 1. A through threaded groove is formed on the outer surface of the sleeve 6, and a locking block is threaded into the groove. A sliding cylinder 7 is slidably connected inside the sleeve 6, allowing the user to flexibly adjust the working length according to the distance of the damaged point in the pipe. A spraying repair mechanism is provided on the surface of the sliding cylinder 7. The spraying repair mechanism includes a material storage cylinder 12, a repair tube 13, a connecting tube 3, and a spherical airbag 5. A material storage cylinder is fixedly connected to the outer surface of the sliding cylinder 7. 12. Two repair tubes 13 are fixedly connected to the outer surface of the storage cylinder 12. A connecting tube 3 is fixedly connected to the bottom end of the storage cylinder 12. The connecting tube 3 passes through the inner wall of the slide cylinder 7 and extends into the sleeve 6. It passes through the through groove opened on the sleeve 6 and is fixedly connected to a spherical airbag 5. The spherical airbag 5 is fixed to the surface of the sleeve 6. A one-way valve 4 is fixedly installed on both the spherical airbag 5 and the repair tube 13. A UV light strip 15 is fixedly connected between the two repair tubes 13. A camera 14 is fixedly installed on the surface of the UV light strip 15.

[0021] It should be noted that in actual operation, the staff first uses the front-end camera 14 to acquire and transmit real-time images of the inside of the pipe (its power supply and signal transmission are well-known technologies in the field, and will not be elaborated on here), thereby realizing the location of the damage point and overcoming the blindness of traditional operations. After positioning the equipment through the slide 7 and locking block, the operator presses the external spherical airbag 5, and uses a simple air pressure principle to squeeze the repair material in the storage cylinder 12 evenly from the repair tube 13 through the connecting pipe 3. Compared with complex driving devices such as micro pumps, this method is not only more reliable in structure but also cheaper in cost. Most importantly, after the material coating is completed, the integrated UV light strip 15 can be started immediately for in-situ rapid curing (the power supply and control of the UV light strip are conventional technologies in the field, and will not be elaborated on here). The observation, coating and curing processes are integrated into a single operation, which greatly shortens the repair time and improves the overall work efficiency.

[0022] The outer side of the slide cylinder 7 is provided with a stable walking mechanism, which includes a telescopic rod 9, a spring 11, a moving plate 8 and a roller 10. Four evenly distributed telescopic rods 9 are fixedly connected to the outer surface of the slide cylinder 7. The surface of the telescopic rod 9 is fitted with a spring 11, and the outer end of the telescopic rod 9 is fixedly connected to a moving plate 8. A moving groove is opened on the moving plate 8, and a roller 10 is rotatably connected in the moving groove.

[0023] It should be noted that the four circumferentially distributed telescopic rods 9, under the action of their respective springs 11, continuously provide elastic radial support force outward, thereby pushing the rollers 10 to press tightly against the inner wall of the pipe. By utilizing the elastic potential energy of the springs, the equipment can continuously maintain a centered state within the pipe and can adapt to pipe diameter changes or slight unevenness of the inner wall of the pipe within a certain range. At the same time, the rollers 10 at the end greatly reduce the frictional resistance when the equipment moves, ensuring that the entire equipment moves smoothly and stably within the pipe. Through the synergistic effect of this mechanism, the repair pipe 13 at the front end is always kept at a relatively equidistant distance from the inner wall of the pipe, thus improving the repair effect.

[0024] In summary, this utility model discloses a special device for repairing the inner wall of an oil pipe. The device, through a stable walking mechanism composed of rollers 10 driven by spring 11, can automatically center and move smoothly inside the pipe, ensuring that the repair head is equidistant from the pipe wall, thus providing a guarantee for high-quality repair.

[0025] Its front end integrates a camera 14, a repair material repair tube 13, and a UV light strip 15. During operation, the camera 14 can be used to achieve visual and precise positioning; by pressing the external spherical airbag 5, the repair material is squeezed out from the repair tube 13 for coating in a simple and reliable air pressure manner; finally, the UV light strip 15 is activated for rapid in-situ curing. It is not only simple in structure and low in cost, but also overcomes the blindness of traditional operations and significantly improves the accuracy, efficiency and quality of point repair operations.

[0026] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A special device for repairing the inner wall of an oil pipe, characterized in that, include: Handle (1); The sleeve (6) is fixedly connected to the bottom end of the handle (1). The outer surface of the sleeve (6) is provided with a through threaded groove, and a locking block is threadedly connected in the threaded groove. Sliding cylinder (7), the sleeve (6) is slidably connected to the sliding cylinder (7); The spraying repair mechanism is provided on the surface of the slide cylinder (7). The spraying repair mechanism includes a material storage cylinder (12), a repair pipe (13), a connecting pipe (3), and a spherical airbag (5). The material storage cylinder (12) is fixedly connected to the outer surface of the slide cylinder (7). Two repair pipes (13) are fixedly connected to the outer surface of the material storage cylinder (12). The bottom end of the material storage cylinder (12) is fixedly connected to the connecting pipe (3). The connecting pipe (3) penetrates the inner wall of the slide cylinder (7) and extends into the sleeve (6). It passes through the through groove opened on the sleeve (6) and is fixedly connected to the spherical airbag (5). The spherical airbag (5) is fixed on the surface of the sleeve (6). A stabilizing walking mechanism is provided on the outer side of the slide (7).

2. The special equipment for repairing the inner wall of an oil pipe according to claim 1, characterized in that, One-way valves (4) are fixedly installed on both the spherical airbag (5) and the repair tube (13).

3. The special equipment for repairing the inner wall of an oil pipe according to claim 1, characterized in that, A UV lamp strip (15) is fixedly connected between the two repair tubes (13).

4. The special equipment for repairing the inner wall of an oil pipe according to claim 3, characterized in that, A camera (14) is fixedly mounted on the surface of the UV light strip (15).

5. The special equipment for repairing the inner wall of an oil pipe according to claim 1, characterized in that, The stable walking mechanism includes a telescopic rod (9), a spring (11), a moving plate (8), and a roller (10). Four telescopic rods (9) are fixedly connected to the outer surface of the slide cylinder (7) in a uniform and circumferentially distributed manner. The surface of the telescopic rod (9) is fitted with a spring (11), and the outer end of the telescopic rod (9) is fixedly connected to a moving plate (8). A moving groove is opened on the moving plate (8), and a roller (10) is rotatably connected in the moving groove.

6. The special equipment for repairing the inner wall of an oil pipe according to claim 1, characterized in that, The surface of the handle (1) is fixedly connected with an anti-slip sleeve (2).

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