Pressure pipeline surface defect detection device

Abstract

The invention provides a pressure pipeline surface defect detection device, and relates to the technical field of pressure pipelines. The pressure pipeline surface defect detection device comprises a bottom plate, a detection structure is fixedly connected to the position, close to the front side edge, of the center of the upper end face of the bottom plate, a fixing structure is arranged at the center of the upper end face of the bottom plate, a cleaning structure is arranged on the upper end face of the fixing structure, and the fixing structure comprises a first movable groove; the first movable groove is formed in the center of the upper end face of the bottom plate, a second lead screw is arranged in the first movable groove, and the two ends of the second lead screw are rotationally connected to the centers of the two inner side walls of the first movable groove correspondingly. The holder is driven by the electric sliding block to slide back and forth in the sliding groove, then the inclination angle between the connecting plate and the holder is adjusted by controlling the electric telescopic device, and attachments on the side wall of the pipeline are cleaned under the cooperation of the scraper and the cleaning brush, so that the subsequent detection result is not affected.

Description

Technical Field

[0001] The invention relates to the technical field of pressure pipelines, and in particular to a pressure pipeline surface defect detection device. Background Art

[0002] Pressure pipelines are widely used in industrial fields such as petroleum, natural gas, chemical industry, electricity and urban gas supply. They are key facilities for transporting various fluid media. Since pipelines are exposed to high pressure, high temperature, corrosive media and complex environment for a long time, various defects such as cracks, corrosion, pits and scratches are prone to occur on their surfaces. If these defects are not discovered and repaired in time, they may cause pipeline leakage, rupture, and even cause serious safety accidents, resulting in casualties and huge economic losses.

[0003] Traditional pipeline inspection methods mainly rely on manual visual inspection. However, these methods have obvious limitations. Manual visual inspection is limited by the experience, skills and subjective judgment of the inspectors, and it is difficult to fully and accurately detect all potential defects, especially inside the pipeline or in difficult-to-access areas. At the same time, when there are attachments on the surface of the pressure pipeline, the defective parts will be blocked, thereby affecting the overall inspection results. Therefore, technicians in this field provide a pressure pipeline surface defect detection device to solve the problems raised in the above background technology. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the present invention provides a pressure pipeline surface defect detection device, which solves the problem that the existing manual detection method is difficult to comprehensively and accurately detect all potential defects and the pipeline surface attachments cannot be well cleaned and will block the defective parts, thereby affecting the subsequent detection results.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a pressure pipeline surface defect detection device, comprising a bottom plate, a detection structure is fixedly connected to the front edge of the center of the upper end surface of the bottom plate, a fixing structure is arranged at the center of the upper end surface of the bottom plate, and a cleaning structure is arranged on the upper end surface of the fixing structure;

[0008] The fixing structure includes a first movable groove, the first movable groove is arranged at the center of the upper end surface of the bottom plate, a second screw rod is arranged inside the first movable groove, two ends of the second screw rod are respectively rotatably connected to the centers of the two inner side walls of the first movable groove, two first connecting sleeves are respectively sleeved on the side walls of the second screw rod inside the first movable groove, the upper end surfaces of the two first connecting sleeves are respectively fixedly connected with movable plates, the upper end surfaces of the two movable plates are respectively fixedly connected with clamping arc plates on the front and rear sides, a plurality of rotating grooves are respectively arranged on one side wall of the four clamping arc plates, a plurality of rotating grooves are respectively arranged inside the plurality of rotating grooves, and a plurality of roller shafts are respectively arranged on both sides of the plurality of roller shafts The ends are rotatably connected at the centers of two inner walls of a plurality of rotating grooves, a first motor is fixedly connected at the center of one side wall of the bottom plate, an output end of the first motor passes through the side wall of the bottom plate and passes into the interior of the first movable groove, and an end portion is fixedly connected to one end of a second screw rod, a second motor is fixedly connected at the rear side of the center of the upper end surface of the movable plate close to the first motor side, a pulley is fixedly connected to the output end of the second motor, a pulley is also provided on the side wall of the roller shaft inside the rotating groove on the side wall of the clamping arc plate close to the second motor side, the two pulleys are connected by a transmission belt, and an inclined groove is provided on the side wall of the clamping arc plate close to the transmission belt side.

[0009] Preferably, the cleaning structure includes two sliding grooves, the two sliding grooves are respectively arranged at the upper end surfaces of the two movable plates near one side edge, the interiors of the two sliding grooves are respectively slidably connected with electric sliders, the upper ends of the two electric sliders are respectively fixedly connected with retaining frames, storage grooves are respectively arranged at the centers of one side walls of the two retaining frames, connecting plates are respectively arranged inside the two storage grooves, the upper ends of the two connecting plates are respectively hingedly connected to the upper inner walls of the two storage grooves, hinge seats are respectively fixedly connected at the centers of the lower ends of one inner side walls of the two storage grooves and the side walls of the two connecting plates, the four hinge seats are movably connected by two electric telescopic devices, scrapers are respectively fixedly connected at the centers of the lower end surfaces of the two connecting plates near one side edge, and cleaning brushes are respectively arranged on the other sides close to the two scrapers.

[0010] Preferably, the detection structure includes a connecting vertical frame, the lower end of the connecting vertical frame is fixedly connected to the center of the upper end surface of the bottom plate near the front edge, a second movable groove is provided at the center of the rear side wall of the connecting vertical frame, a first screw rod is provided inside the second movable groove, the upper and lower ends of the first screw rod are rotatably connected to the centers of the upper and lower inner walls of the second movable groove respectively, a fourth motor is fixedly connected to the upper end surface of the connecting vertical frame at the upper end of the second movable groove, the output end of the fourth motor passes through the upper end surface of the connecting vertical frame and passes to the inside of the second movable groove, and the end is fixedly connected to the upper end of the first screw rod;

[0011] A second connecting sleeve is sleeved on the side wall of the first screw rod inside the second movable groove, a third motor is fixedly connected to the center of the rear side wall of the second connecting sleeve, an output end of the third motor is fixedly connected to a telescopic rod, and a detection element is fixedly connected to the output end of the telescopic rod.

[0012] Preferably, a control panel is fixedly connected to the center of one side wall of the detection structure.

[0013] Preferably, self-locking universal wheels are fixedly connected to the center of the lower end surface of the base plate at four diagonal positions.

[0014] Preferably, the second lead screw is a bidirectional lead screw.

[0015] Preferably, the detection element is an ultrasonic detection device.

[0016] (III) Beneficial effects

[0017] The present invention provides a pressure pipeline surface defect detection device, which has the following beneficial effects:

[0018] 1. In the present invention, by setting a fixed structure, the second screw is driven to rotate by the first motor when in use, and under the action of the threaded connection between the two first connecting sleeves and the second screw, the two movable plates move in opposite directions, and the side wall of the pressure pipe is clamped by two clamping arc plates. A plurality of rollers on the side wall of the clamping arc plate are attached to the side wall of the pressure pipe, and then one of the rollers is driven to rotate by the cooperation of the second motor, the pulley and the transmission belt, thereby realizing the rotation control of the clamped pressure pipe, which is convenient for the subsequent detection of the pipe side wall.

[0019] 2. In the present invention, a cleaning structure is provided. When in use, the retaining frame is driven by an electric slider to slide back and forth inside the sliding groove. Then, the inclination angle between the connecting plate and the retaining frame is adjusted by controlling the electric telescopic device. With the cooperation of the scraper and the cleaning brush, the attachments on the side wall of the pipe are cleaned, thereby not affecting the subsequent detection results.

[0020] 3. In the present invention, by setting up a detection structure, when in use, the fourth motor is used to drive the first screw rod to rotate, and the threaded connection between the first screw rod and the second connecting sleeve is used to adjust the upper and lower positions of the third motor, the telescopic rod and the detection element. The rotation adjustment and telescopic adjustment of the third motor and the telescopic rod enable the overall detection on the side wall and inside of the pressure pipe, thereby reducing the detection blind area and improving the detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an axonometric diagram of the overall structure of the present invention;

[0022] Figure 2 It is an axonometric view of the overall structure of the present invention from another perspective;

[0023] Figure 3 It is a front view of the present invention;

[0024] Figure 4 is a side sectional view of the retainer in the present invention;

[0025] Figure 5 for Figure 3 A magnified schematic diagram of center A.

[0026] Among them, 1. bottom plate; 2. fixed structure; 201. movable plate; 202. clamping arc plate; 203. first motor; 204. first movable groove; 205. second motor; 206. first connecting sleeve; 207. pulley; 208. transmission belt; 209. inclined groove; 210. second screw rod; 211. roller; 3. cleaning structure; 301. sliding groove; 302. connecting plate; 303. retaining frame; 304. electric slider; 305. hinge seat; 306. scraper; 307. cleaning brush; 308. electric telescopic device; 309. storage groove; 4. detection structure; 401. third motor; 402. detection element; 403. second movable groove; 404. fourth motor; 405. second connecting sleeve; 406. telescopic rod; 407. connecting vertical frame; 408. first screw rod; 5. control panel; 6. self-locking universal wheel. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1:

[0029] like Figure 1-5 As shown, an embodiment of the present invention provides a pressure pipeline surface defect detection device, comprising a bottom plate 1, a detection structure 4 is fixedly connected to the front edge of the center of the upper end surface of the bottom plate 1, a fixing structure 2 is arranged at the center of the upper end surface of the bottom plate 1, and a cleaning structure 3 is arranged on the upper end surface of the fixing structure 2;

[0030] The fixed structure 2 includes a first movable groove 204, which is arranged at the center of the upper end surface of the bottom plate 1. A second screw rod 210 is arranged inside the first movable groove 204. The two ends of the second screw rod 210 are respectively rotatably connected to the centers of the two inner side walls of the first movable groove 204. Two first connecting sleeves 206 are respectively sleeved on the side walls of the second screw rod 210 inside the first movable groove 204. The upper end surfaces of the two first connecting sleeves 206 are respectively fixedly connected to the movable plates 201. The upper end surfaces of the two movable plates 201 are located close to the front and rear two ends. The sides of the bottom plate 1 are fixedly connected with clamping arc plates 202, and a plurality of rotating grooves are respectively arranged on one side wall of the four clamping arc plates 202, and roller shafts 211 are respectively arranged inside the plurality of rotating grooves, and the two ends of the plurality of roller shafts 211 are respectively rotatably connected to the centers of the two inner side walls of the plurality of rotating grooves. A first motor 203 is fixedly connected to the center of one side wall of the bottom plate 1, and the output end of the first motor 203 passes through the side wall of the bottom plate 1 and passes to the inside of the first movable groove 204, and the end is fixedly connected to one end of the second screw rod 210, and is close to the movable groove 204 on one side of the first motor 203. A second motor 205 is fixedly connected to the rear side of the center of the upper end surface of the movable plate 201, and a pulley 207 is fixedly connected to the output end of the second motor 205. A pulley 207 is also provided on the side wall of the roller shaft 211 inside the rotating groove on the side wall of the arc plate 202 near the second motor 205. The two pulleys 207 are connected by a transmission belt 208. An inclined groove 209 is provided on the side wall of the arc plate 202 near the transmission belt 208. When in use, the second screw rod 210 is driven to rotate by the first motor 203. Under the action of the threaded connection between the first connecting sleeve 206 and the second screw rod 210, the two movable plates 201 move in opposite directions, and the side wall of the pressure pipe is clamped by the two clamping arc plates 202. The multiple rollers 211 on the side walls of the clamping arc plates 202 are attached to the side walls of the pressure pipe. Subsequently, with the cooperation of the second motor 205, the pulley 207 and the transmission belt 208, one of the rollers 211 is driven to rotate, thereby realizing the rotation control of the clamped pressure pipe, which is convenient for the subsequent detection of the pipe side wall.

[0031] The cleaning structure 3 includes two sliding grooves 301, and the two sliding grooves 301 are respectively arranged at the upper end surfaces of the two movable plates 201 near one side edge, and the interiors of the two sliding grooves 301 are respectively slidably connected with electric sliders 304, and the upper ends of the two electric sliders 304 are respectively fixedly connected with retaining frames 303, and the center of one side wall of the two retaining frames 303 is respectively provided with a storage groove 309, and the interiors of the two storage grooves 309 are respectively provided with connecting plates 302, and the upper ends of the two connecting plates 302 are respectively hingedly connected to the upper inner side walls of the two storage grooves 309, and the center of one inner side wall of the two storage grooves 309 near the lower end and the side walls of the two connecting plates 302 are respectively fixedly connected. It is connected to a hinged seat 305, and the four hinged seats 305 are movably connected by two electric telescopic devices 308. A scraper 306 is fixedly connected to the center of the lower end surface of the two connecting plates 302 near one side edge, and a cleaning brush 307 is provided on the other side close to the two scrapers 306. When in use, the electric slider 304 drives the retaining frame 303 to slide back and forth inside the sliding groove 301, and then the electric telescopic device 308 is controlled to adjust the inclination angle between the connecting plate 302 and the retaining frame 303. With the cooperation of the scraper 306 and the cleaning brush 307, the attachments on the side wall of the pipeline are cleaned, thereby not affecting the subsequent detection results.

[0032] The detection structure 4 includes a connecting vertical frame 407, the lower end of which is fixedly connected to the center of the upper end surface of the bottom plate 1 near the front side edge, a second movable groove 403 is arranged at the center of the rear side wall of the connecting vertical frame 407, a first screw rod 408 is arranged inside the second movable groove 403, upper and lower ends of the first screw rod 408 are rotatably connected to the centers of the upper and lower inner side walls of the second movable groove 403 respectively, a fourth motor 404 is fixedly connected to the upper end surface of the connecting vertical frame 407 at the upper end of the second movable groove 403, an output end of the fourth motor 404 passes through the upper end surface of the connecting vertical frame 407 and passes to the inside of the second movable groove 403, and an end portion is fixedly connected to the upper end of the first screw rod 408;

[0033] A second connecting sleeve 405 is sleeved on the side wall of the first screw rod 408 located inside the second movable groove 403, and a third motor 401 is fixedly connected to the center of the rear side wall of the second connecting sleeve 405. A telescopic rod 406 is fixedly connected to the output end of the third motor 401, and a detection element 402 is fixedly connected to the output end of the telescopic rod 406. When in use, the first screw rod 408 is driven to rotate by the fourth motor 404, and the threaded connection between the first screw rod 408 and the second connecting sleeve 405 is utilized to adjust the upper and lower positions of the third motor 401, the telescopic rod 406 and the detection element 402. The rotation adjustment and telescopic adjustment of the third motor 401 and the telescopic rod 406 enable the overall detection on and inside the pressure pipe, thereby reducing the detection blind area and improving the detection effect.

[0034] A control panel 5 is fixedly connected to the center of one side wall of the detection structure 4, and self-locking universal wheels 6 are fixedly connected to the center of the lower end surface of the base plate 1 at four diagonal positions. The second screw 210 is a bidirectional screw, and the detection element 402 is an ultrasonic detection device.

[0035] Working principle: The present application is a pressure pipeline surface defect detection device. When in use, the first motor 203 drives the second screw rod 210 to rotate. Under the action of the two first connecting sleeves 206 and the second screw rod 210 being threadedly connected, the two movable plates 201 move in opposite directions, and the side wall of the pressure pipeline is clamped by two clamping arc plates 202. The multiple rollers 211 on the side wall of the clamping arc plate 202 are attached to the side wall of the pressure pipeline, and then the second motor 205, the pulley 207 and the transmission belt 208 are used. With the cooperation of , one of the rollers 211 is driven to rotate, thereby realizing the rotation control of the clamped pressure pipe, which is convenient for the subsequent detection of the pipe side wall, and then the electric slider 304 drives the retaining frame 303 to slide back and forth inside the sliding groove 301, and then the electric telescopic device 308 is controlled to adjust the inclination angle between the connecting plate 302 and the retaining frame 303, and with the cooperation of the scraper 306 and the cleaning brush 307, the attachments on the pipe side wall are cleaned, so as not to affect the subsequent detection results.

[0036] Finally, the first screw rod 408 is driven to rotate by the fourth motor 404, and the threaded connection between the first screw rod 408 and the second connecting sleeve 405 is utilized to adjust the upper and lower positions of the third motor 401, the telescopic rod 406 and the detection element 402. The rotation adjustment and telescopic adjustment of the third motor 401 and the telescopic rod 406 enable the overall detection on the side wall and inside of the pressure pipe, thereby reducing the detection blind area and improving the detection effect.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure pipeline surface defect detection device, comprising a bottom plate (1), characterized in that: A detection structure (4) is fixedly connected to the center of the upper end surface of the bottom plate (1) near the front edge, a fixing structure (2) is arranged at the center of the upper end surface of the bottom plate (1), and a cleaning structure (3) is arranged on the upper end surface of the fixing structure (2); The fixed structure (2) comprises a first movable groove (204), the first movable groove (204) being arranged at the center of the upper end surface of the bottom plate (1), a second screw rod (210) being arranged inside the first movable groove (204), two ends of the second screw rod (210) being rotatably connected to the centers of the two inner side walls of the first movable groove (204), two first connecting sleeves (206) being respectively sleeved on the side walls of the second screw rod (210) inside the first movable groove (204), the upper end surfaces of the two first connecting sleeves (206) being respectively fixedly connected to movable plates (201), the upper end surfaces of the two movable plates (201) being respectively fixedly connected to clamping arc plates (202) at the front and rear sides, a plurality of rotating grooves being respectively arranged on one side wall of the four clamping arc plates (202), the interiors of the plurality of rotating grooves being respectively provided with roller shafts (211), the two ends of the plurality of roller shafts (211) being respectively rotatable A first motor (203) is fixedly connected to the center of two inner side walls of a plurality of rotating grooves, and one side wall of the bottom plate (1) is fixedly connected to the center of the first side wall. The output end of the first motor (203) passes through the side wall of the bottom plate (1) and passes into the interior of the first movable groove (204), and the end is fixedly connected to one end of a second screw rod (210). A second motor (205) is fixedly connected to the rear side of the center of the upper end surface of the movable plate (201) close to the first motor (203). A pulley (207) is fixedly connected to the output end of the second motor (205). A pulley (207) is also provided on the side wall of a roller shaft (211) inside the rotating groove on the side wall of the arc plate (202) close to the second motor (205). The two pulleys (207) are connected by a transmission belt (208), and an inclined groove (209) is provided on the side wall of the arc plate (202) close to the transmission belt (208).

2. A pressure pipeline surface defect detection device according to claim 1, characterized in that: The cleaning structure (3) comprises two sliding grooves (301), the two sliding grooves (301) are respectively arranged at the upper end surfaces of the two movable plates (201) close to one side edge, the interiors of the two sliding grooves (301) are respectively slidably connected with electric sliders (304), the upper ends of the two electric sliders (304) are respectively fixedly connected with retaining frames (303), the centers of the side walls of the two retaining frames (303) are respectively provided with storage grooves (309), the interiors of the two storage grooves (309) are respectively provided with connecting plates (302), and the two connecting plates (303) are respectively provided with connecting plates (302). The upper ends of the plates (302) are respectively hingedly connected to the upper inner walls of the two receiving grooves (309); hinge seats (305) are respectively fixedly connected at the lower ends of the inner walls of the two receiving grooves (309) and the side walls of the two connecting plates (302); the four hinge seats (305) are movably connected via two electric telescopic devices (308); scrapers (306) are respectively fixedly connected at the edges of one side of the lower end surfaces of the two connecting plates (302); cleaning brushes (307) are respectively arranged on the other sides close to the two scrapers (306).

3. A pressure pipeline surface defect detection device according to claim 1, characterized in that: The detection structure (4) comprises a connecting vertical frame (407), the lower end of the connecting vertical frame (407) is fixedly connected to the center of the upper end surface of the bottom plate (1) near the front side edge, a second movable groove (403) is arranged at the center of the rear side wall of the connecting vertical frame (407), a first screw rod (408) is arranged inside the second movable groove (403), the upper and lower ends of the first screw rod (408) are respectively rotatably connected to the centers of the upper and lower inner side walls of the second movable groove (403), a fourth motor (404) is fixedly connected to the upper end surface of the connecting vertical frame (407) located at the upper end of the second movable groove (403), the output end of the fourth motor (404) passes through the upper end surface of the connecting vertical frame (407) and passes to the inside of the second movable groove (403), and the end is fixedly connected to the upper end of the first screw rod (408); A second connecting sleeve (405) is sleeved on the side wall of the first screw rod (408) located inside the second movable groove (403); a third motor (401) is fixedly connected to the center of the rear side wall of the second connecting sleeve (405); an output end of the third motor (401) is fixedly connected to a telescopic rod (406); and a detection element (402) is fixedly connected to the output end of the telescopic rod (406).

4. A pressure pipeline surface defect detection device according to claim 1, characterized in that: A control panel (5) is fixedly connected to the center of one side wall of the detection structure (4).

5. The pressure pipeline surface defect detection device according to claim 1, characterized in that: Self-locking universal wheels (6) are fixedly connected to the center of the lower end surface of the base plate (1) at four diagonal positions.

6. A pressure pipeline surface defect detection device according to claim 1, characterized in that: The second screw rod (210) is a bidirectional screw rod.

7. A pressure pipeline surface defect detection device according to claim 3, characterized in that: The detection element (402) is an ultrasonic detection device.

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