Crack measuring device for lead-in optical cable

Abstract

The invention discloses a crack measuring device for a lead-in optical cable, and relates to the field of visual inspection, and the crack measuring device comprises a box body, a U-shaped plate and a camera which are arranged in the box body, an optical cable penetrating through the box body, two protection boxes, a double-shaft motor and a preprocessing mechanism, inclined mounting plates are fixed to the tops and the bottoms of the outer walls of one sides of the two side plates through screws, cameras are installed on the faces, close to the optical cable, of the four mounting plates, the preprocessing mechanism is composed of a cleaning assembly and a wiping assembly, the cleaning assembly is used for cleaning dust and oil stains on the surface of the optical cable, and the wiping assembly is used for wiping water stains left after cleaning; the cleaning assembly comprises two semi-ring-shaped plates and two brush plates, the two wiping assemblies are arranged in the two protection boxes respectively, and each wiping assembly comprises two semi-ring-shaped wiping plates and two pull ropes. Dust and oil stains on the surface of an optical cable can be cleaned, so that the shooting definition of a follow-up camera is ensured; the dryness of the surface of the cleaned optical cable is ensured, the problems of image blurring and light reflection caused by the cleaning liquid are avoided, and the accuracy of crack recognition is improved.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of visual detection, and in particular to a crack measuring device for introducing an optical cable. Background Art

[0002] In industrial environments, product surface quality is an important component of product quality and an important guarantee of the commercial value of commodities. Optical cables, as an important way of transmitting information in life, occupy an increasingly important position in the communications industry. The quality of optical cables is also receiving more and more attention. For example, defects such as surface cracks require crack detection when the optical cables are introduced from the outside to specific equipment.

[0003] A device and method for detecting surface defects of optical cables described in the prior art include a device for detecting surface defects of optical cables and a method for detecting surface defects of optical cables using the device. The device for detecting surface defects of optical cables includes a liftable bracket, a detection cavity with a cylindrical structure is arranged in the liftable bracket, and three cameras and a light source are installed in the detection cavity which are evenly distributed in a circle; an encoder, an industrial computer, a camera and a counting module are all connected to a special power supply and a main switch of the device; the method for detecting surface defects of optical cables includes steps S1-S5.

[0004] Although the above technology can take pictures of optical cables and obtain clear images for crack detection, oil stains and dust may appear on the surface of the optical cables during the production or transportation process, affecting the image quality of subsequent visual inspections, causing blurred or reflective images, thereby affecting the image processing software's recognition and analysis of cracks on the optical cable surface and reducing accuracy. Summary of the invention

[0005] Based on this, an object of the present invention is to provide a crack measurement device for an introduced optical cable to solve the technical problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A crack measuring device for introducing an optical cable comprises a box, an internal U-shaped plate and a camera, an optical cable passing through the box, two protective boxes, a dual-axis motor and a pre-processing mechanism, wherein side panels are symmetrically fixed inside the box, and inclined mounting plates are screwed to the top and bottom of one side of the outer wall of the two side panels, and cameras are installed on one side of the four mounting plates close to the optical cable, and the pre-processing mechanism is composed of a cleaning component and a wiping component, wherein the cleaning component is used to clean dust and oil stains on the surface of the optical cable, and the wiping component is used to wipe off water stains left after cleaning; The cleaning assembly comprises two semi-annular plates and two brush plates, the two brush plates are arranged at the inner circle of the semi-annular plates, the soft brush surfaces of the two brush plates are in contact with the outer wall of the optical cable, the outer walls of the two semi-annular plates are installed with cleaning water tanks, the two cleaning water tanks are connected to the inner cavity of the brush plates through the liquid guide tube, and the sides of the two semi-annular plates close to the protection box are connected to the semi-toothed ring through the connecting rod; The wiping assembly is provided with two groups and respectively arranged in two protective boxes. The wiping assembly includes two semi-ring wiping plates and two pull ropes. The two semi-ring wiping plates are staggered in the protective box. The arc surfaces of the two groups of semi-ring wiping plates are bonded with wiping cloths. The two groups of semi-ring wiping plates are connected to the dual-axis motor through a transmission system.

[0007] Specifically, the two ends of the two semi-annular plates are in contact and the outer walls are provided with splicing plates, one side of the two splicing plates is welded to the outer wall of one semi-annular plate, and the other side of the two splicing plates is connected to the outer wall of the other semi-annular plate by screws, and electric telescopic cylinders are embedded in the tops of the inner ring walls of the two semi-annular plates, and the telescopic ends of the two electric telescopic cylinders are connected to the outer wall of the brush plate with screws.

[0008] Specifically, the two cleaning water tanks are equipped with water pumps, and the output ports are connected to the liquid guide tubes. The walls of the two brush plates located on the soft brush surfaces are provided with a plurality of water-permeable holes.

[0009] Specifically, the technical solution of the present invention is that a curved clamping plate is integrally formed on one side of the two half-toothed rings away from the half-connecting rod, and matching curved clamping grooves are formed on the outer walls of the two protective boxes located on the curved clamping plate.

[0010] Specifically, each of the protective boxes is symmetrically provided with square holes on one side close to the optical cable, each of the semi-ring wiping plates is located at the square hole, and drying plates are installed on both sides of the inner wall of each of the protective boxes at the square hole, and two symmetrical vertical rods are fixed inside each of the protective boxes, and a pull rope is connected at the center of the outer wall of the two semi-ring wiping plates, and the pull rope is arranged in a U shape through the two vertical rods.

[0011] Specifically, a sealing plate is installed on one side of each protective box away from the optical cable by screws, and guide rods and guide plates are respectively welded to the top and bottom of the outer walls of the two semi-ring wiping plates, and the ends of the guide rods and guide plates pass through the sealing plates and extend to the outside, and the upper surface of the guide plate is integrally provided with external teeth, and gears are meshed and connected to the external teeth, and a shaft rod is passed through the center of the gear, and one end of the shaft rod is rotatably connected to the inner wall of the protective box.

[0012] Specifically, the upper surface of each protective box is installed with a magnetic coupler by screws, one side of each magnetic coupler is connected to a transmission shaft, each transmission shaft and shaft rod is fixedly sleeved with a transmission wheel, the two transmission wheels are connected by a transmission chain, and the transmission chain passes through the top wall of the protective box and is slidably connected with the contact part thereof.

[0013] Specifically, the dual-axis motor is installed on the top wall of a protective box by screws, one output end of the dual-axis motor is connected to the magnetic coupler, two half-toothed rings are meshed with drive wheels, one drive wheel is fixedly mounted on the output end of the dual-axis motor, and a rotating shaft is passed through the center of the other drive wheel, and the rotating shaft is connected to another magnetic coupler.

[0014] Specifically, the two protective boxes are symmetrically mounted on the outer wall of the box body by screws, a top plate is mounted on the top of the box body by screws, a top block is welded on the lower surface of the top plate, the top block matches the tops of the two side plates, a surface of the top block and the two side plates close to the optical cable is set as an arc surface and is provided with a lamp trough, and light strips are embedded in the three lamp troughs.

[0015] The technical solution is specific that the inner wall of the box is located on the other side of the side panel and a pneumatic telescopic cylinder is installed by screws, the telescopic end of the pneumatic telescopic cylinder is connected to the outer wall of the U-shaped plate with screws, three mounting sleeves are sequentially arranged in the U-shaped plate, three mounting sleeves are each provided with a watercolor pen, and the three watercolor pens are threadedly engaged with the mounting sleeves, and brackets are sleeved on the three mounting sleeves, both ends of the brackets are fixedly connected to the inner wall of the U-shaped plate, and a support spring is fixedly connected between the three mounting sleeves and the inner wall of the U-shaped plate.

[0016] In summary, the present invention mainly has the following beneficial effects: the present invention first passes the optical cable through the two semi-circular plates and the box body, and then pushes the brush plate to move through two electric telescopic cylinders so that the soft brush surface contacts the optical cable, and at the same time, the water pump sends the cleaning liquid into the brush plate through the liquid guide tube and soaks the soft brush from the water permeable hole to clean the dust and oil stains on the surface of the optical cable, so as to ensure the clarity of subsequent camera shooting; At this time, the rotation of the two half-toothed rings will drive the other driving wheel to rotate, so that the driving wheel drives the rotating shaft to rotate, and the rotating shaft and the other output end of the dual-axis motor both drive the transmission shaft to rotate through the magnetic coupler, so that the two transmission shafts are controlled by the transmission sprocket to rotate the shaft rods in the two protection boxes, and the shaft rods drive the gears to rotate, so that the outer track teeth follow the rotation of the gears to drive the guide plate to move, and the guide plate pushes the connected half-ring wiping plate to move out of the protection box, and the wiping cloth contacts the surface of the optical cable. Due to the effect of the pull rope, the two half-ring wiping plates are staggered, which is convenient for the subsequent replacement of the wiping cloth and the drying treatment with the drying plate, thereby ensuring the dryness of the optical cable surface, avoiding image blur and reflection problems caused by the cleaning liquid, and improving the accuracy of crack recognition; When cracks are detected on the surface of the optical cable, the pneumatic telescopic cylinder will work to push the U-shaped plate to move, so that the watercolor pen approaches the optical cable until the pen tip touches it. As the optical cable moves, the watercolor pen will mark the cracks to ensure that subsequent staff can determine the location of the cracks for easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the device of the present invention; Figure 2 It is a side structural diagram of the present invention; Figure 3 A top view of the present invention; Figure 4 It is a side view of the interior of the box of the present invention; Figure 5 It is a cross-sectional view of the box of the present invention; Figure 6 It is a schematic diagram of the pretreatment mechanism of the present invention; Figure 7 A top view of the pretreatment mechanism of the present invention; Figure 8 It is a front view of the cleaning component of the present invention; Fig. 9 It is a side view of the wiping component of the present invention.

[0018] Description of the drawings: 1. Box body; 101. Side plate; 102. Mounting plate; 1021. Camera; 103. Top plate; 1031. Top block; 104. Light trough; 1041. Light strip; 2. U-shaped plate; 201. Pneumatic telescopic cylinder; 203. Watercolor pen; 204. Mounting sleeve; 205. Support spring; 206. Bracket; 3. Optical cable; 4. Protective box; 401. Sealing plate; 402. Dual-axis motor; 403. Square perforation; 404. Vertical rod; 405. Drying plate; 406. Driving wheel; 407. Rotating shaft; 408. Magnetic force coupler; 5. pretreatment mechanism; 6. cleaning assembly; 601. semi-circular plate; 6011. cleaning water tank; 602. brush plate; 603. liquid guide tube; 604. electric telescopic cylinder; 605. splicing plate; 606. semi-toothed ring; 6061. connecting rod; 607. arc-shaped clamping plate; 7. wiping assembly; 701. semi-ring wiping plate; 702. pull rope; 703. guide rod; 704. guide plate; 7041. outer track tooth; 705. gear; 706. shaft; 707. transmission wheel; 708. transmission chain; 709. transmission shaft. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] The following describes an embodiment of the present invention based on its overall structure. Example

[0021] In the present application, both side outer walls of the box body 1 are connected to the electric lifting frame to facilitate height control, and the internal electrical components are controlled by an external controller, and the controller is provided with a processor for processing the image received by the camera 1021. This process adopts the existing technology, that is, the processing flow of application number CN108280823A.

[0022] See also Figure 1-5As shown, a crack measuring device for introducing an optical cable comprises a box body 1, an internal U-shaped plate 2 and a camera 1021, an optical cable 3 passing through the box body 1, two protective boxes 4, a dual-axis motor 402 and a pre-processing mechanism 5, the box body 1 is symmetrically fixed with side panels 101, the top and bottom of one side of the outer wall of the two side panels 101 are screwed with inclined mounting plates 102, the four mounting plates 102 are installed with cameras 1021 on one side close to the optical cable 3, the two protective boxes 4 are symmetrically installed on the outer wall of the box body 1 by screws, and the box body 1 The top plate 103 is installed on the top by screws, and a top block 1031 is welded on the lower surface of the top plate 103. The top block 1031 matches the tops of the two side plates 101. The top block 1031 and the two side plates 101 are arranged on a curved surface close to the optical cable 3 and are provided with a lamp trough 104. The three lamp troughs 104 are all embedded with a lamp strip 1041. The pretreatment mechanism 5 is composed of a cleaning component 6 and a wiping component 7. The cleaning component 6 is used to clean the dust and oil stains on the surface of the optical cable 3, and the wiping component 7 is used to wipe the water stains left after cleaning. The inner wall of the box body 1 is located on the other side of the side panel 101, and a pneumatic telescopic cylinder 201 is installed by screws. The telescopic end of the pneumatic telescopic cylinder 201 is screwed to the outer wall of the U-shaped plate 2. Three mounting sleeves 204 are arranged in sequence in the U-shaped plate 2. The three mounting sleeves 204 are each provided with a watercolor pen 203. The three watercolor pens 203 are all threadedly engaged with the mounting sleeves 204. Brackets 206 are sleeved on the three mounting sleeves 204. Both ends of the bracket 206 are fixedly connected to the inner wall of the U-shaped plate 2, and support springs 205 are fixedly connected between the three mounting sleeves 204 and the inner wall of the U-shaped plate 2.

[0023] When the optical cable 3 is introduced into a specific device, the staff member passes the optical cable 3 through the pretreatment mechanism 5 and the box body 1, and then starts the cleaning component 6 and the dual-axis motor 402 through the controller, and the brush plate 602 contacts the surface of the optical cable 3 and rotates under the control of the dual-axis motor 402. The dual-axis motor 402 also controls the wiping component 7 to work through the transmission system, so that the wiping cloth contacts the surface of the optical cable 3. As the specific device pulls the optical cable 3, the optical cable 3 moves along the pretreatment mechanism 5 and the box body 1. During the movement of the optical cable 3, the contacting brush plate 602 cleans the dust and oil stains on its surface. After cleaning, there are water stains of the cleaning liquid on the surface of the optical cable 3, and then it is dried when passing through the wiping cloth, so as to realize the cleaning of the dust and oil stains on the surface of the optical cable 3, so as to ensure the clarity of the subsequent camera 1021 shooting, and at the same time ensure the dryness of the surface of the optical cable 3, avoid the image blur and reflection problems caused by the cleaning liquid, and improve the accuracy of crack recognition; At this time, the controller turns on the three light strips 1041 and the four cameras 1021. The light strips 1041 are used to provide fill light for the cameras 1021, and the cameras 1021 shoot the passing optical cable 3 and send the shot images to the processor in the controller. The processor performs grayscale processing, weak edge enhancement processing, fusion processing and filtering processing on the received images to determine whether there are cracks. When cracks exist, the processor sends a signal to the controller to start the pneumatic telescopic cylinder 201 to push the U-shaped plate 2 to move. The U-shaped plate 2 drives the installation sleeve 204, the watercolor pen 203, the support spring 205 and the bracket 206 to approach the optical cable 3. As the pneumatic telescopic cylinder 201 continues to move, under the action of the support spring 205 and the bracket 206, the pen tips of the three watercolor pens 203 will contact the outer wall of the optical cable 3. As the optical cable 3 moves, the watercolor pen 203 leaves an imprint on the surface of the optical cable 3, so that the staff can determine the crack position later and perform maintenance.

[0024] See also Figure 6-8 As shown, the cleaning assembly 6 includes two semi-annular plates 601 and two brush plates 602. The two brush plates 602 are arranged at the inner circle of the semi-annular plates 601. The soft brush surfaces of the two brush plates 602 are in contact with the outer wall of the optical cable 3. The outer walls of the two semi-annular plates 601 are installed with cleaning water tanks 6011. The two cleaning water tanks 6011 are connected to the inner cavity of the brush plates 602 through the liquid guide tube 603. Water pumps are installed in the two cleaning water tanks 6011 and the output ports are connected to the liquid guide tube 603. Several water permeable holes are opened on the wall of the two brush plates 602 located on the soft brush surface. The two semi-annular plates 601 are connected to the semi-toothed ring 606 on one side close to the protective box 4 through the connecting rod 6061. The cleaning liquid in the cleaning water tank 6011 is Sticklers. The cleaning performance of this cleaning liquid is better than isopropyl alcohol (IPA), which can improve the cleaning effect of any optical fiber cleaning tools and cotton swabs, and can completely remove dust, dirt and fingerprints.

[0025] An arc-shaped clamping plate 607 is integrally provided on one side of the two half-toothed rings 606 away from the half-connecting rod 6061, and matching arc-shaped clamping grooves are opened on the outer walls of the two protective boxes 4 located on the arc-shaped clamping plates 607. The two ends of the two semi-annular plates 601 are in contact and the outer walls are provided with splicing plates 605. One side of the two splicing plates 605 is welded to the outer wall of a semi-annular plate 601, and the other side of the two splicing plates 605 is connected to the outer wall of the other semi-annular plate 601 by screws. Electric telescopic cylinders 604 are embedded in the top of the inner ring walls of the two semi-annular plates 601, and the telescopic ends of the two electric telescopic cylinders 604 are screwed to the outer wall of the brush plate 602; wherein the arc-shaped clamping groove and the arc-shaped clamping plate 607 can connect the cleaning component 6 with the protective box 4, thereby achieving a supporting effect.

[0026] When the optical cable 3 passes through the two semi-circular plates 601, the controller starts the two electric telescopic cylinders 604, and the two telescopic ends push the brush plate 602 to move, so that the soft brush surface contacts the surface of the optical cable 3. At the same time, the water pump works to send the cleaning liquid in the cleaning water tank 6011 into the brush plate 602 through the liquid guide tube 603 and soak the soft brush from the water permeable hole. Then, when the dual-axis motor 402 works, one output end drives the installed driving wheel 406 to rotate, and the driving wheel 406 drives the meshing half gear ring 6 06 movement, wherein since the splicing plate 605 connects the two semi-annular plates 601, the two semi-toothed rings 606 at this time will form a whole. Therefore, when the two semi-toothed rings 606 drive the semi-annular plates 601 and the brush plate 602 to rotate, it will drive another meshing driving wheel 406 to rotate, and the two semi-toothed rings 606 will also drive the arc-shaped card plate 607 to move along the arc-shaped card grooves of the two protective boxes 4, and the rotating brush plate 602 will clean the dust and oil stains on the surface of the moving optical cable 3.

[0027] See also Figure 2 , Figure 6 ,, Figure 7 and Fig. 9 As shown, the wiping assembly 7 is provided with two groups and is respectively arranged in two protective boxes 4, the wiping assembly 7 includes two semi-ring wiping plates 701 and two pull ropes 702, the two semi-ring wiping plates 701 are staggered in the protective box 4, the arc surfaces of the two groups of semi-ring wiping plates 701 are bonded with wiping cloths, the two groups of semi-ring wiping plates 701 are connected to the dual-axis motor 402 through a transmission system, and each protective box 4 is symmetrically provided with square through-holes 403 on one side close to the optical cable 3, each semi-ring wiping plate 701 is located at the square through-hole 403, and the inner wall of each protective box 4 is located on both sides of the square through-hole 403. Drying plates 405 are installed, and two symmetrical vertical rods 405 are fixed inside each protective box 4. 4. A pull rope 702 is connected to the center of the outer wall of the two semi-ring wiping plates 701. The pull rope 702 is arranged in a U shape through two vertical rods 404. A sealing plate 401 is installed on the side of each protective box 4 away from the optical cable 3 through screws. A guide rod 703 and a guide plate 704 are welded to the top and bottom of the outer wall of the two semi-ring wiping plates 701 respectively. The ends of the guide rod 703 and the guide plate 704 pass through the sealing plate 401 and extend to the outside. The upper surface of the guide plate 704 is integrally provided with an outer track tooth 7041, and a gear 705 is meshed and connected to the outer track tooth 7041. A shaft rod 706 is passed through the center of the gear 705, and one end of the shaft rod 706 is rotatably connected to the inner wall of the protective box 4; A magnetic coupler 408 is installed on the upper surface of each protective box 4 by screws, and a transmission shaft 709 is connected to one side of each magnetic coupler 408. A transmission wheel 707 is fixedly sleeved on each transmission shaft 709 and the shaft 706. The two transmission wheels 707 are connected by a transmission chain 708. The transmission chain 708 runs through the top wall of the protective box 4 and is slidably connected to the contact part thereof. The dual-axis motor 402 is installed on the top wall of a protective box 4 by screws, and one output end of the dual-axis motor 402 is connected to the magnetic coupler 408. The two half-toothed rings 606 are connected with a force coupler 408, and the two half-toothed rings 606 are meshed with drive wheels 406. One drive wheel 406 is fixedly mounted on the output end of the dual-axis motor 402, and a rotating shaft 407 is passed through the center of the other drive wheel 406. The rotating shaft 407 is connected to another magnetic coupler 408. The guide rods 703 and the guide plates 704 in the two protective boxes 4 are installed on different half-ring wiping plates 701, so that the half-ring wiping plates 701 can form a whole when in contact with the optical cable 3.

[0028] When the dual-axis motor 402 works to rotate the two driving wheels 406, the other output end of the dual-axis motor 402 and the rotating shaft 407 will respectively control the rotation of the transmission shaft 709 through the connected magnetic coupler 408, and the two transmission shafts 709 will respectively drive the installed transmission wheels 707 to rotate, and the rotating transmission wheel 707 will drive the other transmission wheel 707 to rotate through the transmission chain 708, so that the inserted shaft rod 706 rotates, and then drives the gear 705 installed on the shaft rod 706. When the two gears 705 rotate, the meshing outer track teeth 7041 are driven to move, and then the guide plate 704 is driven to move. The moving guide plate 704 pushes the connected semi-ring wiping plate 701 to pass through the square through hole 403 and approach the optical cable 3 until the wiping cloth contacts the surface of the optical cable 3 and stops. Under the action of the magnetic coupler 408, the normal operation of the dual-axis motor 402 will not be affected; When the semi-ring wiping plate 701 moves, the other semi-ring wiping plate 701 is pulled by the pull rope 702, so that it moves deeper into the protective box 4. After a period of time, the wiping cloth in contact with the optical cable 3 will become damp due to the wiped-off cleaning liquid, reducing the wiping effect. The dual-axis motor 402 works in the opposite direction, causing the brush plate 602 to rotate in the opposite direction, and the semi-ring wiping plate 701 originally in contact with the optical cable 3 is moved into the protective box 4, and the other semi-ring wiping plate 701 is moved out to contact the optical cable 3 to complete the replacement. Then the drying plate 405 is started to dry the retracted wiping cloth, and the bidirectional rotation of the brush can reduce the uneven wear on the surface of the optical cable 3 caused by a single direction and ensure the dryness of the optical cable 3.

[0029] The working principle of the present invention is: When the optical cable 3 is introduced into a specific device, the staff passes the optical cable 3 through the pretreatment mechanism 5 and the box 1, and then starts the electric telescopic cylinder 604 and the dual-axis motor 402 through the controller. The two telescopic ends push the brush plate 602 to move, so that the soft brush surface contacts the surface of the optical cable 3. At the same time, the water pump works to send the cleaning liquid in the cleaning water tank 6011 into the brush plate 602 through the liquid guide tube 603 and soak the soft brush from the water permeable hole. Then, when the dual-axis motor 402 works, one output end drives the installed driving wheel 406 to rotate. The wheel 406 drives the meshing half-toothed ring 606 to move, wherein since the splicing plate 605 connects the two semi-annular plates 601, the two half-toothed rings 606 at this time will form a whole, so when the two half-toothed rings 606 drive the semi-annular plate 601 and the brush plate 602 to rotate, it will drive another meshing driving wheel 406 to rotate, and the two half-toothed rings 606 will also drive the arc-shaped card plate 607 to move along the arc-shaped card slots of the two protection boxes 4, and the rotating brush plate 602 cleans the dust and oil stains on the surface of the moving optical cable 3; When the dual-axis motor 402 works to rotate the two driving wheels 406, the other output end of the dual-axis motor 402 and the rotating shaft 407 will respectively control the transmission shaft 709 to rotate through the connected magnetic coupler 408, and the two transmission shafts 709 will respectively drive the installed transmission wheels 707 to rotate. The rotating transmission wheel 707 will drive another transmission wheel 707 to rotate through the transmission chain 708, so that the shaft rod 706 that passes through it rotates, and then drives the gear 705 installed on the shaft rod 706. When the two gears 705 rotate, The meshing outer track teeth 7041 are driven to move, and then the guide plate 704 is driven to move. The moving guide plate 704 pushes the connected semi-ring wiping plate 701 to pass through the square through hole 403 and approach the optical cable 3 until the wiping cloth contacts the surface of the optical cable 3 and stops. Under the action of the magnetic coupler 408, the normal operation of the dual-axis motor 402 is not affected. When the semi-ring wiping plate 701 moves, the pull rope 702 pulls the other semi-ring wiping plate 701, so that it moves deeper into the protective box 4. As the specific equipment pulls the optical cable 3, the optical cable 3 moves along the pretreatment mechanism 5 and the box 1. During the movement of the optical cable 3, the brush plate 602 in contact cleans the dust and oil stains on its surface. After cleaning, there are water stains of cleaning liquid on the surface of the optical cable 3, which is then dried by the wiping cloth. At this time, the controller turns on the three light strips 1041 and the four cameras 1021. The light strips 1041 are used to provide fill light for the cameras 1021, and the cameras 1021 shoot the passing optical cable 3 and send the shot images to the processor in the controller. The processor performs grayscale processing and weak edge enhancement on the received images. Processing, fusion processing and filtering processing are performed to determine whether there is a crack. When a crack exists, the processor sends a signal to the controller to start the pneumatic telescopic cylinder 201, which pushes the U-shaped plate 2 to move. The U-shaped plate 2 drives the installation sleeve 204, the watercolor pen 203, the support spring 205 and the bracket 206 to approach the optical cable 3. As the pneumatic telescopic cylinder 201 continues to move, under the action of the support spring 205 and the bracket 206, the pen tips of the three watercolor pens 203 will contact the outer wall of the optical cable 3. As the optical cable 3 moves, the watercolor pen 203 leaves an imprint on the surface of the optical cable 3, so that the staff can determine the subsequent crack position and perform maintenance.

[0030] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A crack measuring device for introducing an optical cable, comprising a box (1), an internal U-shaped plate (2) and a camera (1021), an optical cable (3) passing through the box (1), two protective boxes (4), a dual-axis motor (402) and a pre-processing mechanism (5), characterized in that The box body (1) is symmetrically fixed with side panels (101) on the inside, and inclined mounting plates (102) are fixed with screws on the top and bottom of the outer walls of one side of the two side panels (101). Cameras (1021) are installed on the side of the four mounting plates (102) close to the optical cable (3). The pretreatment mechanism (5) is composed of a cleaning component (6) and a wiping component (7). The cleaning component (6) is used to clean dust and oil stains on the surface of the optical cable (3), and the wiping component (7) is used to wipe off water stains left by cleaning; The cleaning assembly (6) comprises two semi-annular plates (601) and two brush plates (602), wherein the two brush plates (602) are arranged at the inner circle of the semi-annular plates (601), and the soft brush surfaces of the two brush plates (602) are in contact with the outer wall of the optical cable (3), and the outer walls of the two semi-annular plates (601) are installed with cleaning water tanks (6011), and the two cleaning water tanks (6011) are connected to the inner cavity of the brush plates (602) through the liquid guide tube (603), and the sides of the two semi-annular plates (601) close to the protection box (4) are connected to the semi-toothed ring (606) through the connecting rod (6061); The wiping assembly (7) is provided in two groups and is respectively arranged in two protective boxes (4). The wiping assembly (7) comprises two semi-ring wiping plates (701) and two pull ropes (702). The two semi-ring wiping plates (701) are staggeredly arranged in the protective box (4). The arc surfaces of the two groups of semi-ring wiping plates (701) are both bonded with wiping cloths. The two groups of semi-ring wiping plates (701) are connected to the dual-axis motor (402) via a transmission system.

2. A crack measuring device for an optical cable according to claim 1, characterized in that: The two ends of the two semi-annular plates (601) are in contact with each other and a splicing plate (605) is provided on the outer wall; one side of the two splicing plates (605) is welded to the outer wall of one semi-annular plate (601); the other side of the two splicing plates (605) is connected to the outer wall of the other semi-annular plate (601) by screws; the top of the inner wall of the two semi-annular plates (601) is embedded with an electric telescopic cylinder (604); the telescopic ends of the two electric telescopic cylinders (604) are screw-connected to the outer wall of the brush plate (602).

3. The crack measuring device for introducing an optical cable according to claim 1, characterized in that: A water pump is installed in each of the two cleaning water tanks (6011), and the output port is connected to the liquid guide tube (603). The walls of the two brush plates (602) located on the soft brush surface are provided with a plurality of water permeable holes.

4. The crack measuring device for introducing an optical cable according to claim 1, characterized in that: An arc-shaped clamping plate (607) is integrally provided on one side of the two half-toothed rings (606) away from the half-connecting rod (6061), and matching arc-shaped clamping grooves are provided on the outer walls of the two protection boxes (4) located on the arc-shaped clamping plate (607).

5. The crack measuring device for introducing an optical cable according to claim 1, characterized in that: Each of the protective boxes (4) is symmetrically provided with square holes (403) on one side close to the optical cable (3); each of the semi-ring wiping plates (701) is located at the square hole (403); a drying plate (405) is installed on both sides of the inner wall of each of the protective boxes (4) located at the square hole (403); two symmetrical vertical rods (404) are fixed inside each of the protective boxes (4); a pull rope (702) is connected at the center of the outer wall of the two semi-ring wiping plates (701); the pull rope (702) passes through the two vertical rods (404) and is arranged in a U shape.

6. A crack measuring device for an optical cable according to claim 5, characterized in that: A sealing plate (401) is installed on one side of each protective box (4) away from the optical cable (3) by means of screws, and a guide rod (703) and a guide plate (704) are respectively welded to the top and bottom of the outer walls of the two semi-ring wiping plates (701), and the ends of the guide rod (703) and the guide plate (704) pass through the sealing plate (401) and extend to the outside, and the upper surface of the guide plate (704) is integrally provided with an outer track tooth (7041), and a gear (705) is meshedly connected to the outer track tooth (7041), and a shaft rod (706) is passed through the center of the gear (705), and one end of the shaft rod (706) is rotatably connected to the inner wall of the protective box (4).

7. A crack measuring device for an optical cable according to claim 6, characterized in that: A magnetic coupler (408) is mounted on the upper surface of each protective box (4) by means of screws, one side of each magnetic coupler (408) is connected to a transmission shaft (709), a transmission wheel (707) is fixedly sleeved on each transmission shaft (709) and the shaft (706), and the two transmission wheels (707) are connected to each other by means of a transmission chain (708), and the transmission chain (708) passes through the top wall of the protective box (4) and is slidably connected to the contact portion thereof.

8. A crack measuring device for an optical cable according to claim 7, characterized in that: The dual-axis motor (402) is mounted on the top wall of a protective box (4) by means of screws; an output end of the dual-axis motor (402) is connected to a magnetic coupler (408); two half-toothed rings (606) are meshingly connected with drive wheels (406); one drive wheel (406) is fixedly sleeved on the output end of the dual-axis motor (402); a rotating shaft (407) is passed through the center of the other drive wheel (406); and the rotating shaft (407) is connected to another magnetic coupler (408).

9. The crack measuring device for introducing an optical cable according to claim 1, characterized in that: The two protection boxes (4) are symmetrically mounted on the outer wall of the box body (1) by means of screws, a top plate (103) is mounted on the top of the box body (1) by means of screws, a top block (1031) is welded to the lower surface of the top plate (103), the top block (1031) matches the tops of the two side plates (101), a surface of the top block (1031) and the two side plates (101) close to the optical cable (3) is configured as an arc surface and is provided with a light trough (104), and light strips (1041) are embedded in the three light troughs (104).

10. The crack measuring device for introducing an optical cable according to claim 1, characterized in that: The inner wall of the box body (1) is located on the other side of the side plate (101) and is provided with a pneumatic telescopic cylinder (201) by means of screws. The telescopic end of the pneumatic telescopic cylinder (201) is screw-connected to the outer wall of the U-shaped plate (2). The U-shaped plate (2) is provided with three mounting sleeves (204) in sequence. Each of the three mounting sleeves (204) is provided with a watercolor pen (203). Each of the three watercolor pens (203) is threadedly connected to the mounting sleeve (204). Each of the three mounting sleeves (204) is sleeved with a bracket (206). Both ends of the bracket (206) are fixedly connected to the inner wall of the U-shaped plate (2). A support spring (205) is fixedly connected between the three mounting sleeves (204) and the inner wall of the U-shaped plate (2).

Images