Cable conductor insulation detection device and method in construction exposed environment

Abstract

The present invention relates to the technical field of cable conductor insulation detection, and specifically to a cable conductor insulation detection device and method in an exposed construction environment. The device comprises a base plate, and a detection mechanism and a driving mechanism are arranged above the base plate, wherein the detection mechanism comprises a first annular seat. The present invention can timely find the damaged position or rigidity change of the cable insulation layer under the cooperation of the probe rod and the ball, thereby avoiding the problem that the elastic change and minor damage of the insulation layer are difficult to be directly observed by the naked eye, so that one of the terminals of the insulation resistance meter can be accurately clamped at the damaged place to achieve accurate detection, thereby being able to detect the damaged position of the cable insulation layer and achieve the purpose of accurate detection. At the same time, the angle between the two pointers is formed, and the camera shoots the angle between the two pointers. The staff can clearly mark the damaged position of the cable by observing the angle between the two pointers.

Description

Technical Field

[0001] The invention relates to the technical field of cable conductor insulation detection, and in particular to a cable conductor insulation detection device and method in a construction exposed environment. Background Art

[0002] During the construction or maintenance of a power plant, a large number of cables need to be temporarily used due to the electricity demand at the construction site. Since the local on-site construction period is short, the use of cables will be more random, and there is no special installation route. For example, cables are pulled into the boiler to use a welding machine to weld various pipelines. These temporarily pulled cables are completely in an exposed environment. During the construction process, the cables may be pulled at will, causing wear, or be corroded and damaged due to long-term exposure to special environments.

[0003] The Chinese invention patent with application number 202410822919.2 discloses a cable insulation layer detection device and method, including a hollow movable ring shell and a cable body placed inside it, and the top of the movable ring shell is fixedly connected to an insulation resistance meter for detecting the cable body, and the inside of the movable ring shell is rotatably connected to a rotating shell. The cooperation between the movable ring shell and the driving slide rod can drive the cleaning sheet to rotate and move on the cable body, effectively erasing dust and impurities on the surface of the cable. In the above device, resistance measurement is achieved by respectively applying the two terminals of the resistance meter to the insulation layer and the internal wire of the cable, which can effectively erase dust and impurities on the surface of the cable and ensure accuracy during the detection process.

[0004] However, when testing the resistance of cables in an exposed environment, the surface of the cable is easily damaged, such as damage caused by friction with the ground, tears or depressions, or loss of elasticity of the insulation layer. When these situations occur, one of the terminals of the resistance meter needs to be placed on the damaged area to achieve the purpose of accurate testing. The above situations cannot be completely observed by the naked eye. For example, the elastic changes and minor damages of the insulation layer are difficult to be directly observed by the naked eye.

[0005] To this end, we propose a cable conductor insulation detection device and method in a construction exposure environment to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a cable conductor insulation detection device and method in a construction exposure environment to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cable conductor insulation detection device in a construction exposure environment, comprising a base plate, a detection mechanism and a driving mechanism are arranged above the base plate, the detection mechanism comprises a first annular seat, the first annular seat can rotate and move on the outside of the cable, the upper and lower sides of the first annular seat are fixedly connected with U-shaped plates, the inner side of the first annular seat is fixedly connected with two symmetrically arranged fan-shaped air bags, the cable can pass through the two fan-shaped air bags, the two sides of the fan-shaped air bags are respectively fixedly connected with the outer sides of the two U-shaped plates, the two fan-shaped air bags are connected through a pipeline installed in the first annular seat, after the fan-shaped air bags are expanded, they can match the diameter of the cable, so that the cable is in the center position of the first annular seat;

[0008] The first annular seat is arranged above the bottom plate, and the upper and lower probe rods are respectively slidably arranged on the upper and lower sides of the first annular seat, the probe rod is slidably connected to the U-shaped plate, and a circular block is fixedly connected to the side of the probe rod away from the first annular seat, and a tension spring is arranged on the outer side of the probe rod, and the two ends of the tension spring are respectively fixedly connected to the circular block and the outer side of the first annular seat, and the connecting line of the two probe rods is on the diameter of the first annular seat, and a ball is embedded on the inner side of the end of the probe rod close to the cable, and the rear side of the first annular seat is fixedly connected to the insulation resistance meter, and the detection of the damaged part of the outer surface of the cable insulation layer is achieved by analyzing the synchronization and asynchronism of the two probe rods extending into the first annular seat.

[0009] Further preferably, the driving mechanism includes a vertical plate, a second annular seat and an outer gear ring, the vertical plate is slidably connected above the base plate, the bottom of the second annular seat is fixedly connected to the top of the vertical plate, the right side of the second annular seat is fixedly connected to a circular plate, the right side of the circular plate is fixedly connected to the left side of the first annular seat, the outer gear ring is fixedly sleeved on the outside of the circular plate, the bottom of the outer gear ring is meshed with a gear, the left side of the vertical plate is fixedly installed with a first motor, and the output shaft of the first motor is fixedly connected to the left side of the gear.

[0010] Further preferably, two fixed plates are fixedly connected to the top of the base plate, a screw is rotatably connected between the two fixed plates, the vertical plate is threadedly sleeved on the outside of the screw, two positioning rods are fixedly connected between the two fixed plates, the vertical plate is slidably sleeved on the outside of the two positioning rods, a second motor is fixedly connected to the left side of one of the fixed plates on the left, and the output shaft end of the second motor is fixedly connected to the left end of the screw.

[0011] Further preferably, an L-shaped block is fixedly connected to the top of the fixing plate, a first semicircular clamp is fixedly connected to the rear side of the L-shaped block, a second semicircular clamp is movably contacted to the rear side of the first semicircular clamp, the cable passes between the first semicircular clamp and the second semicircular clamp, the top and bottom of the first semicircular clamp and the second semicircular clamp are fixedly connected to blocks, the two blocks are threadedly installed by bolts, the first semicircular clamp and the second semicircular clamp increase the stability of the cable detection process, and the center of the first annular seat is coaxial with the center of the first semicircular clamp and the second semicircular clamp.

[0012] Further preferably, the top and the bottom of the first annular seat are fixedly connected to two L-shaped rods, and the two L-shaped rods are rotatably connected to fixed pulleys on one side away from the first annular seat.

[0013] Further preferably, a connecting plate is fixedly connected to the front side of the first annular seat, a circular scale plate is fixedly connected to the front side of the connecting plate, cross bars are fixedly connected to the front inner wall and the rear inner wall of the circular scale plate, and a circular tube is fixedly connected to one end of the two cross bars close to each other.

[0014] The cam is provided with a plurality of springs, each of which is provided with a plurality of springs, each of which is provided with a plurality of springs, each of which is provided with a plurality of springs, each of which is provided with a plurality of springs, each of which is provided with a plurality of springs, each of which is provided with a plurality of springs.

[0015] Further preferably, an L-shaped seat is fixedly connected to the right side of the first annular seat, and a camera is fixedly connected to the right inner wall of the L-shaped seat for identifying the status of the two pointers. When the pointers change, the camera can identify the changes of the pointers. A display screen is fixedly connected to the top of the base plate, and the display screen displays the content captured by the camera. The right sides of the two fan-shaped airbags are connected to valves, and the front valve of the two valves is an air inlet valve, and the rear valve is an air outlet valve.

[0016] Further preferably, a rectangular block is fixedly connected to the outer side of the probe rod, and an electric telescopic rod is fixedly connected to the side of the rectangular block away from the corresponding circular block. A marking pen is fixedly connected to the output end of the electric telescopic rod. After the camera recognizes the change of the pointer, the electric telescopic rod can drive the marking pen to move, and the marking pen marks the damaged part of the cable.

[0017] The present invention also proposes a method for detecting insulation of a cable conductor in a construction exposure environment, comprising the following steps:

[0018] Step 1: Pass the cable through the two first annular seats and fix it through the first semicircular clamp and the second semicircular clamp;

[0019] Step 2: Start the first motor to make the first annular seat rotate and move on the outside of the cable. When there is a problem with the cable insulation layer, when the probe passes through the problem, it will collide with the problem on the outside of the cable under the traction of the tension spring;

[0020] Step 3: Due to the existence of the problem, the probe rod will be displaced. When the probe rod is displaced, the connecting rope drives the pointer to rotate through the winding shaft, and the angles of the two pointers will move synchronously or asynchronously. The camera can shoot and identify the angle, and the electric telescopic rod drives the marker pen to mark the operation;

[0021] Step 4: Clamp the two terminals of the insulation resistance meter on the problem area and the cable core inside the cable to determine whether the quality of the cable insulation layer meets the requirements.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention passes the cable through two first annular seats and a second annular seat, fixes the cable through a first semicircular clamp and a second semicircular clamp, and inflates two fan-shaped airbags through a valve on the front side. After the fan-shaped airbags are inflated, they match the diameter of the cable, so that the fan-shaped airbags are in close contact with the outer side of the cable, and the cable is located in the middle position of the first annular seat.

[0024] 2. The first motor drives the ball to rotate on the outside of the cable through the rotation of the probe rod. Under the traction of the tension spring, the ball is driven to move through the probe rod to contact the damaged part on the outside of the cable. At the same time, the circular block drives the connecting rope to move, and the connecting rope drives the winding shaft to rotate to compress the winding spring. The circular limit plate rotates to drive the pointer to rotate, and an angle appears between the two pointers. The camera shoots the angle. By observing the angle between the two pointers, the staff can clearly determine the condition of the damaged part of the cable. The electric telescopic rod drives the corresponding marker to perform marking operations.

[0025] 3. When the cable is exposed to the sun for a long time and the rigidity of a certain part of the insulation layer disappears, the contact between the ball and the outer side of the cable will drive the connecting rope to move a certain distance to the side close to the cable, and the two pointers will rotate to a certain angle synchronously. The electric telescopic rod will drive the marker to move for marking. With the cooperation of the probe rod and the ball, the present invention can timely find the damaged position or rigidity change of the cable insulation layer, avoiding the problem that the elastic change and minor damage of the insulation layer are difficult to directly observe with the naked eye, so that one of the terminals of the insulation resistance meter can be accurately clamped at the damaged place to achieve accurate detection, so that the damaged position of the cable insulation layer can be detected, so as to achieve the purpose of accurate detection. At the same time, the angle between the two pointers is formed, and the camera shoots the angle between the two pointers. The staff can clearly mark the damaged part of the cable by observing the angle between the two pointers.

[0026] 4. After the ball rotates around the cable once, start the second motor to drive the vertical plate to move to the left through the screw rotation, so that the ball moves to another test point of the cable. When the test is completed, the insulation resistance meter automatically calculates the insulation resistance value of the cable, determines whether the quality of the cable insulation layer meets the requirements, and rotates the bolt in the opposite direction to separate it from the block. At this time, the cable can be removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention;

[0028] Figure 2 It is a front view structural schematic diagram of the present invention;

[0029] Figure 3 It is a rear-view stereoscopic structural schematic diagram of the present invention;

[0030] Figure 4 It is a schematic diagram of the three-dimensional structure of the connection between the first annular seat and the annular scale plate of the present invention;

[0031] Figure 5 for Figure 4 A schematic diagram of a rear-view stereoscopic structure;

[0032] Figure 6 It is a schematic diagram of the three-dimensional structure of the connection between the annular scale plate and the circular tube in the present invention;

[0033] Figure 7 It is a schematic diagram of the three-dimensional structure of the connection between the vertical plate and the second annular seat in the present invention;

[0034] Figure 8 for Figure 7 A right-view stereoscopic structure diagram of ;

[0035] Fig. 9A three-dimensional diagram showing the connection between the first semicircular clamp and the second semicircular clamp in the present invention;

[0036] Fig.10 for Figure 5 A schematic diagram of the enlarged three-dimensional structure of the middle A area;

[0037] Fig.11 is an internal cross-sectional view of a circular tube in the present invention;

[0038] Fig.12 It is the internal side view of the circular tube in the present invention.

[0039] In the figure:

[0040] 1. First annular seat; 101. Circular block; 102. U-shaped plate; 103. Probe rod; 104. Ball bearing; 105. Tension spring; 106. Rectangular block; 107. Electric telescopic rod; 108. Marker pen; 109. L-shaped rod; 110. Fixed pulley; 111. Connecting plate; 112. Circular scale plate; 113. Cross bar; 114. Circular tube; 115. Bearing; 116. Winding shaft; 117. Connecting rope; 118. Circular limit plate; 119. Pointer; 120. L-shaped seat; 121. Camera; 122. Fan-shaped airbag; 123. Valve; 124. Insulation resistance meter; 125. Coil spring;

[0041] 2. vertical plate; 201. second annular seat; 202. annular plate; 203. outer gear ring; 204. gear; 205. first motor; 206. fixing plate; 207. screw rod; 208. positioning rod; 209. second motor;

[0042] 3. Base plate; 4. Display screen; 5. L-shaped block; 6. First semicircular clamp; 7. Second semicircular clamp; 8. Block; 9. Bolt; 10. Controller. DETAILED DESCRIPTION

[0043] 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.

[0044] Example 1, please refer to Figure 1-12The present invention provides a technical solution: a cable conductor insulation detection device in a construction exposure environment, comprising a bottom plate 3, a detection mechanism and a driving mechanism are arranged above the bottom plate 3, the detection mechanism comprises a first annular seat 1, the first annular seat 1 can rotate and move outside the cable, the upper and lower sides of the first annular seat 1 are fixedly connected with U-shaped plates 102, the inner side of the first annular seat 1 is fixedly connected with two symmetrically arranged fan-shaped air bags 122, the cable can pass between the two fan-shaped air bags 122, the two sides of the fan-shaped air bags 122 are respectively fixedly connected with the outer sides of the two U-shaped plates 102, the two fan-shaped air bags 122 are connected through a pipeline installed in the first annular seat 1, after the fan-shaped air bags 122 are expanded, they can match the diameter of the cable, so that the cable is in the center position of the first annular seat 1;

[0045] The present invention is in operation: when in use, the cable is passed through the two first annular seats 1 and the second annular seat 201, the cable is located between the two fan-shaped air bags 122, the ball 104 contacts the outer side of the cable, and the cable is fixed by threaded connection of the first semicircular clamp 6 and the second semicircular clamp 7. The first semicircular clamp 6 and the second semicircular clamp 7 increase the stability of the cable during detection. The two fan-shaped air bags 122 are inflated through a valve 123 on the front side. The two fan-shaped air bags 122 are connected through a pipeline installed inside the first annular seat 1. After the fan-shaped air bag 122 is inflated, it matches the diameter of the cable, so that the fan-shaped air bag 122 is in close contact with the outer side of the cable, and the cable is in the middle position of the first annular seat 1.

[0046] The first annular seat 1 is arranged above the bottom plate 3, and the upper and lower probe rods 103 are respectively slidably arranged on the upper and lower sides of the first annular seat 1, and the probe rod 103 is slidably connected to the U-shaped plate 102. The side of the probe rod 103 away from the first annular seat 1 is fixedly connected with a circular block 101, and a tension spring 105 is arranged on the outer side of the probe rod 103. The two ends of the tension spring 105 are respectively fixedly connected to the circular block 101 and the outer side of the first annular seat 1. The connecting line of the two probe rods 103 is on the diameter of the first annular seat 1, and the end of the probe rod 103 close to the cable A ball 104 is embedded on the inner side, and an insulation resistance meter 124 is fixedly connected to the rear side of the first annular seat 1. The detection of damaged parts on the outer surface of the cable insulation layer is achieved by analyzing the synchronization and asynchronism of the two probe rods 103 extending into the first annular seat 1. The two crocodile clamps on the insulation resistance meter 124, one crocodile clamp is clamped on the damaged point to be tested, and the other crocodile clamp is clamped on the cable core. The insulation resistance meter 124 will automatically calculate the insulation resistance value of the cable. According to the test results, it can be judged whether the quality condition of the cable insulation layer meets the requirements.

[0047] In this embodiment, specifically: the driving mechanism includes a vertical plate 2, a second annular seat 201 and an outer gear ring 203, the vertical plate 2 is slidably connected to the top of the bottom plate 3, the bottom of the second annular seat 201 is fixedly connected to the top of the vertical plate 2, the right side of the second annular seat 201 is fixedly connected to the annular plate 202, the right side of the annular plate 202 is fixedly connected to the left side of the first annular seat 1, the outer gear ring 203 is fixedly sleeved on the outer side of the annular plate 202, and the bottom of the outer gear ring 203 is meshed with a gear 204, and a first motor 205 is fixedly installed on the left side of the vertical plate 2, the output shaft of the first motor 205 is fixedly connected to the left side of the gear 204, the first motor 205 works to drive the gear 204 to rotate, the gear 204 rotates to drive the outer gear ring 203 meshed with it to rotate, the outer gear ring 203 rotates to drive the annular plate 202 to rotate, the annular plate 202 rotates to drive the first annular seat 1 to rotate, and the first annular seat 1 rotates to drive the probe rod 103 to rotate;

[0048] In this embodiment, specifically: two fixed plates 206 are fixedly connected to the top of the bottom plate 3, a screw 207 is rotatably connected between the two fixed plates 206, the vertical plate 2 is threadedly sleeved on the outside of the screw 207, two positioning rods 208 are fixedly connected between the two fixed plates 206, the vertical plate 2 is slidably sleeved on the outside of the two positioning rods 208, a second motor 209 is fixedly connected to the left side of a left fixed plate 206, the output shaft end of the second motor 209 is fixedly connected to the left end of the screw 207, the second motor 209 drives the screw 207 to rotate when working, and the screw 207 drives the vertical plate 2 to move leftward when rotating, and the leftward movement of the vertical plate 2 can be intermittent or continuous;

[0049] In the present embodiment, specifically: an L-shaped block 5 is fixedly connected to the top of the fixing plate 206, a first semicircular clamp 6 is fixedly connected to the rear side of the L-shaped block 5, a second semicircular clamp 7 is movably contacted to the rear side of the first semicircular clamp 6, the cable passes between the first semicircular clamp 6 and the second semicircular clamp 7, the top and bottom of the first semicircular clamp 6 and the second semicircular clamp 7 are fixedly connected to a block 8, the two blocks 8 are threadedly installed by a bolt 9, the first semicircular clamp 6 and the second semicircular clamp 7 increase the stability of the cable detection process, the center of the first annular seat 1 is coaxial with the center of the first semicircular clamp 6 and the second semicircular clamp 7, the bolt 9 is rotated in the opposite direction, the bolt 9 is separated from the block 8, and then the second semicircular clamp 7 is moved backward to separate the second semicircular clamp 7 from the first semicircular clamp 6, and the cable can be removed at this time;

[0050] In this embodiment, specifically: two L-shaped rods 109 are fixedly connected to the top and bottom of the first annular seat 1, and the two L-shaped rods 109 are rotatably connected to a fixed pulley 110 on one side away from the first annular seat 1, and the setting of the L-shaped rods 109 plays a supporting role;

[0051] In this embodiment, specifically: a connecting plate 111 is fixedly connected to the front side of the first annular seat 1, a circular scale plate 112 is fixedly connected to the front side of the connecting plate 111, a cross bar 113 is fixedly connected to the front inner wall and the rear inner wall of the circular scale plate 112, and a circular tube 114 is fixedly connected to one end of the two cross bars 113 close to each other;

[0052] In this embodiment, specifically: the inner fixed sleeve of the circular tube 114 is provided with two bearings 115, the inner fixed sleeve of the inner ring of the bearing 115 is provided with a winding shaft 116, the outer side of the winding shaft 116 is fixedly connected to the inner wall of the circular tube 114 with a coil spring 125, the outer side of the winding shaft 116 is wound and fixed with a connecting rope 117, the end of the connecting rope 117 passes around the corresponding fixed pulley 110 and is fixedly connected to the circular block 101, the outer fixed sleeve of the winding shaft 116 is provided with a circular limiting plate 118, the bottom of the circular limiting plate 118 is fixedly connected with a pointer 119, the winding shaft 116 can drive the circular limiting plate 118 to rotate, and the circular limiting plate 118 drives the pointer 119 to rotate, when the probe rod 103 moves asynchronously, an angle appears between the two pointers 119, and when the probe rod 103 moves synchronously, the two pointers 119 deflect synchronously;

[0053] In this embodiment, specifically: an L-shaped seat 120 is fixedly connected to the right side of the first annular seat 1, and a camera 121 is fixedly connected to the right inner wall of the L-shaped seat 120 for identifying the status of the two pointers 119. When the pointer 119 changes, the camera 121 can identify the change of the pointer 119. A display screen 4 is fixedly connected to the top of the bottom plate 3, and the display screen 4 displays the content photographed by the camera 121. The right sides of the two fan-shaped airbags 122 are connected with valves 123. The front valve 123 of the two valves 123 is an air inlet valve, and the rear valve 123 is an air outlet valve. The two fan-shaped airbags 122 are inflated through the front valve 123. The two fan-shaped airbags 122 are connected through a pipeline installed inside the first annular seat 1. After the fan-shaped airbags 122 are inflated, they match the diameter of the cable;

[0054] In this embodiment, specifically: a rectangular block 106 is fixedly connected to the outer side of the probe rod 103, an electric telescopic rod 107 is fixedly connected to the side of the rectangular block 106 away from the corresponding circular block 101, and a marking pen 108 is fixedly connected to the output end of the electric telescopic rod 107. After the camera 121 recognizes the change of the pointer 119, the electric telescopic rod 107 can drive the marking pen 108 to move, and the marking pen 108 marks the damaged part of the cable.

[0055] The present invention can timely find the damaged position or rigidity change of the cable insulation layer under the cooperation of the probe rod 103 and the ball 104, avoiding the problem that the elastic change and slight damage of the insulation layer are difficult to be directly observed by naked eyes, so that one of the terminals of the insulation resistance meter can be accurately clamped at the damaged place to achieve accurate detection, so that the damaged position of the cable insulation layer can be detected, achieving the purpose of accurate detection;

[0056] At the same time, the camera 121 takes a picture of the angle between the two pointers 119 . The staff can clearly mark the damaged part of the cable by observing the angle between the two pointers 119 .

[0057] During the detection process, there is a situation: when the surface of the cable is damaged and the local insulation layer hardens, when the first motor 205 rotates, the first motor 205 drives the gear 204 to rotate, the gear 204 drives the outer gear ring 203 meshing with it to rotate, the outer gear ring 203 drives the annular plate 202 to rotate, the annular plate 202 drives the first annular seat 1 to rotate, the first annular seat 1 drives the probe rod 103 to rotate, the probe rod 103 drives the corresponding ball 104 to rotate on the outside of the cable, when there is damage on the outside of the cable, when the ball 104 moves to the damaged position on the outside of the cable, under the traction of the tension spring 105, the tension of the tension spring 105 drives the circular block 101 to move in the direction close to the cable, the circular block 101 drives the probe rod 103 to move, and the probe rod 103 drives the ball 104 to move and contact the problem on the outside of the cable;

[0058] At the same time, the circular block 101 drives the connecting rope 117 to move, and the connecting rope 117 slides on the outside of the fixed pulley 110. The connecting rope 117 drives the corresponding winding shaft 116 to rotate. The winding shaft 116 compresses the coil spring 125 during the rotation, and the winding shaft 116 drives the corresponding circular limiting plate 118 to rotate. The rotation of the circular limiting plate 118 drives the corresponding pointer 119 to rotate, so that one of the two pointers 119 rotates, and the other pointer 119 does not rotate, and an angle appears between the two pointers 119. The camera 121 shoots the angle, and the display screen 4 displays the content shot by the camera 121. The staff can clearly get the situation of the damaged part of the cable by observing the angle between the two pointers 119. At this time, the controller 10 controls the electric telescopic rod 107 to work, and the electric telescopic rod 107 drives the corresponding marking pen 108 to move, and the marking pen 108 moves to the damaged part of the cable for marking.

[0059] Example 2, please refer to Figure 1-12, the present invention is a further supplement to Example 1, and provides a technical solution: in the second case: when the overall rigidity of a certain section of the insulation layer of the cable disappears (such as being exposed to the sun), the insulation layer loses its buffering function due to the disappearance of the rigidity, and the probe rod 103 contacts the rigid insulation layer, and moves toward the outside of the first annular seat 1. At this time, the pointer 119 rotates to the right, and the probe rod 103 contacts the outside of the cable, which drives the connecting rope 117 to move a certain distance toward the side close to the cable, so that the two pointers 119 rotate synchronously to a certain angle, and the electric telescopic rod 107 works, and the electric telescopic rod 107 works to drive the corresponding marker 108 to move, and the marker 108 moves to the place where the rigidity of the cable disappears to perform marking operations;

[0060] After the ball 104 rotates around the cable once, the second motor 209 is started immediately, and the second motor 209 drives the screw 207 to rotate, and the screw 207 drives the vertical plate 2 to move leftward, and the vertical plate 2 slides on the outside of the two positioning rods 208, and the vertical plate 2 drives the second annular seat 201 to move leftward, and the second annular seat 201 drives the annular plate 202 to move leftward, and the annular plate 202 drives the first annular seat 1 to move leftward, so that the ball 104 moves to another point to be tested on the cable. Similarly, starting the first motor 205 can detect another point to be tested on the cable. When the detection is completed, The insulation resistance meter 124 installed on the first annular seat 1 detects the marked point. The two crocodile clamps on the insulation resistance meter 124, one crocodile clamp is clamped at the test point where the stiffness changes, and the other crocodile clamp is clamped with the cable core of the cable. The insulation resistance meter 124 will automatically calculate the insulation resistance value of the cable. According to the test results, it can be judged whether the quality condition of the cable insulation layer meets the requirements. When the cable needs to be removed, the bolt 9 is rotated in the opposite direction, the bolt 9 is separated from the block 8, and then the second semicircular hoop 7 is moved backward to separate the second semicircular hoop 7 from the first semicircular hoop 6. At this time, the cable can be removed.

[0061] The present invention also proposes a cable conductor insulation detection device and method in a construction exposure environment, comprising the following steps:

[0062] Step 1: Pass the cable through the two first annular seats 1 and fix it through the first semicircular clamp 6 and the second semicircular clamp 7;

[0063] Step 2: Start the first motor 205 to rotate and move the first annular seat 1 outside the cable. When there is a problem with the cable insulation layer, when the probe rod 103 passes the problem, it will collide with the problem on the outside of the cable under the traction of the tension spring 105;

[0064] Step 3: Due to the existence of the problem, the probe rod 103 will be displaced. When the probe rod 103 is displaced, the connecting rope 117 drives the pointer 119 to rotate through the winding shaft 116. The angles of the two pointers 119 will move synchronously or asynchronously. The camera 121 can shoot and identify the angle, and the electric telescopic rod 107 drives the marker 108 to perform marking operations;

[0065] Step 4: Clamp the two terminals of the insulation resistance meter 124 on the problem location and the cable core inside the cable respectively, so as to determine whether the quality condition of the cable insulation layer meets the requirements.

[0066] 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 cable conductor insulation detection device for use in an exposed construction environment, comprising a base plate (3), characterized in that: A detection mechanism and a driving mechanism are provided above the bottom plate (3), wherein the detection mechanism comprises a first annular seat (1), wherein the first annular seat (1) is capable of rotating and moving outside the cable, wherein the upper and lower sides of the first annular seat (1) are fixedly connected to U-shaped plates (102), wherein the inner side of the first annular seat (1) is fixedly connected to two symmetrically arranged fan-shaped air bags (122), wherein the cable can pass between the two fan-shaped air bags (122), wherein the two sides of the fan-shaped air bags (122) are respectively fixedly connected to the outer sides of the two U-shaped plates (102), wherein the two fan-shaped air bags (122) are connected via a pipeline installed in the first annular seat (1), and wherein after the fan-shaped air bags (122) are expanded, they can match the diameter of the cable, so that the cable is located in the center of the first annular seat (1); The first annular seat (1) is arranged above the bottom plate (3), and the upper and lower probe rods (103) are respectively slidably arranged on the upper and lower sides of the first annular seat (1), the probe rod (103) is slidably connected to the U-shaped plate (102), and a circular block (101) is fixedly connected to the side of the probe rod (103) away from the first annular seat (1), and a tension spring (105) is arranged on the outside of the probe rod (103), and the two ends of the tension spring (105) are respectively fixedly connected to the circular block (101) and the outside of the first annular seat (1), and the connecting line of the two probe rods (103) is on the diameter of the first annular seat (1), and a ball (104) is embedded on the inner side of the end of the probe rod (103) close to the cable, and the rear side of the first annular seat (1) is fixedly connected to the insulation resistance meter (124), and the detection of the damaged part of the outer surface of the cable insulation layer is achieved by analyzing the synchronization and asynchronism of the two probe rods (103) extending into the first annular seat (1); A connecting plate (111) is fixedly connected to the front side of the first annular seat (1), a circular scale plate (112) is fixedly connected to the front side of the connecting plate (111), a cross bar (113) is fixedly connected to the front inner wall and the rear inner wall of the circular scale plate (112), and a circular tube (114) is fixedly connected to one end of the two cross bars (113) close to each other; The inner fixed sleeve of the circular tube (114) is provided with two bearings (115), the inner fixed sleeve of the inner ring of the bearing (115) is provided with a winding shaft (116), a coil spring (125) is fixedly connected between the outer side of the winding shaft (116) and the inner wall of the circular tube (114), a connecting rope (117) is wound around and fixed to the outer side of the winding shaft (116), and the end of the connecting rope (117) is passed around the corresponding fixed pulley (110) and fixed to the circular block (101). The outer fixed sleeve of the winding shaft (116) is provided with a circular limit plate (118), and the bottom of the circular limit plate (118) is fixedly connected with a pointer (119). The winding shaft (116) can drive the circular limit plate (118) to rotate, and the circular limit plate (118) drives the pointer (119) to rotate. When the probe rod (103) moves asynchronously, an angle appears between the two pointers (119). When the probe rod (103) moves synchronously, the two pointers (119) deflect synchronously.

2. The cable conductor insulation detection device in a construction exposure environment according to claim 1, characterized in that: The driving mechanism comprises a vertical plate (2), a second annular seat (201) and an outer gear ring (203); the vertical plate (2) is slidably connected to the top of the bottom plate (3); the bottom of the second annular seat (201) is fixedly connected to the top of the vertical plate (2); the right side of the second annular seat (201) is fixedly connected to a circular plate (202); the right side of the circular plate (202) is fixedly connected to the left side of the first annular seat (1); the outer gear ring (203) is fixedly sleeved on the outside of the circular plate (202); the bottom of the outer gear ring (203) is meshed with a gear (204); a first motor (205) is fixedly installed on the left side of the vertical plate (2); and the output shaft of the first motor (205) is fixedly connected to the left side of the gear (204).

3. The cable conductor insulation detection device in a construction exposure environment according to claim 2, characterized in that: Two fixed plates (206) are fixedly connected to the top of the bottom plate (3), a screw rod (207) is rotatably connected between the two fixed plates (206), the vertical plate (2) is threadedly sleeved on the outside of the screw rod (207), two positioning rods (208) are fixedly connected between the two fixed plates (206), the vertical plate (2) is slidably sleeved on the outside of the two positioning rods (208), a second motor (209) is fixedly connected to the left side of the left fixed plate (206), and the output shaft end of the second motor (209) is fixedly connected to the left end of the screw rod (207).

4. The cable conductor insulation detection device in a construction exposure environment according to claim 3, characterized in that: The top of the fixing plate (206) is fixedly connected to an L-shaped block (5), the rear side of the L-shaped block (5) is fixedly connected to a first semicircular clamp (6), the rear side of the first semicircular clamp (6) is movably contacted with a second semicircular clamp (7), the cable passes between the first semicircular clamp (6) and the second semicircular clamp (7), the top and bottom of the first semicircular clamp (6) and the second semicircular clamp (7) are fixedly connected to a square block (8), the two square blocks (8) are threadedly mounted by bolts (9), the first semicircular clamp (6) and the second semicircular clamp (7) increase the stability of the cable during detection, and the center of the first annular seat (1) is coaxial with the center of the first semicircular clamp (6) and the second semicircular clamp (7).

5. The cable conductor insulation detection device in a construction exposure environment according to claim 4, characterized in that: The top and bottom of the first annular seat (1) are both fixedly connected to two L-shaped rods (109), and the two L-shaped rods (109) are rotatably connected to a fixed pulley (110) on one side away from the first annular seat (1).

6. The cable conductor insulation detection device in a construction exposure environment according to claim 5, characterized in that: An L-shaped seat (120) is fixedly connected to the right side of the first annular seat (1), and a camera (121) is fixedly connected to the right inner wall of the L-shaped seat (120) for identifying the status of the two pointers (119). When the pointers (119) change, the camera (121) can identify the change of the pointers (119). A display screen (4) is fixedly connected to the top of the bottom plate (3), and the display screen (4) displays the content photographed by the camera (121). The right sides of the two fan-shaped air bags (122) are both connected to valves (123). The front valve (123) of the two valves (123) is an air inlet valve, and the rear valve (123) is an air outlet valve.

7. The cable conductor insulation detection device in a construction exposure environment according to claim 6, characterized in that: A rectangular block (106) is fixedly connected to the outer side of the probe rod (103); a side of the rectangular block (106) away from the corresponding circular block (101) is fixedly connected to an electric telescopic rod (107); an output end of the electric telescopic rod (107) is fixedly connected to a marking pen (108); after the camera (121) recognizes a change in the pointer (119), the electric telescopic rod (107) can drive the marking pen (108) to move, and the marking pen (108) marks the damaged part of the cable.

8. A method for detecting insulation of a cable conductor in an exposed construction environment, characterized in that: The method of using the cable conductor insulation detection device in a construction exposure environment as claimed in claim 7 comprises the following steps: Step 1: Pass the cable through the two first annular seats (1) and fix it by means of the first semicircular clamp (6) and the second semicircular clamp (7); Step 2: Start the first motor (205) to rotate and move the first annular seat (1) outside the cable. When a problem occurs in the insulation layer of the cable, when the probe rod (103) passes the problem, it will contact the problem on the outside of the cable under the traction of the tension spring (105); Step 3: Due to the existence of the problem, the probe rod (103) will be displaced. When the probe rod (103) is displaced, the connecting rope (117) drives the pointer (119) to rotate through the winding shaft (116), and the angles of the two pointers (119) will move synchronously or asynchronously. The camera (121) can shoot and identify the angle, and the electric telescopic rod (107) drives the marking pen (108) to perform marking operations; Step 4: Clamp the two terminals of the insulation resistance meter (124) on the problem location and the cable core inside the cable respectively, so as to determine whether the quality condition of the cable insulation layer meets the requirements.

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