Cable aging tester

Abstract

The utility model relates to a cable aging tester, which comprises a bottom plate, an adjusting device is arranged outside the bottom plate, the adjusting device comprises a first motor and a bevel gear rod, the first motor is fixedly installed inside the bottom plate, and the bevel gear rod is rotatably connected inside the bottom plate. According to the cable aging tester, the device is pushed to a detection site, then the first motor is started to drive the bevel gear rod to rotate, so that the threaded conical rod is driven to rotate, the lifting column is driven to move through rotation of the threaded conical rod, and the testing device is adjusted to a proper height; a cable is moved between two guide wheels, a threaded rod is rotated to drive a U-shaped block to descend to fix the cable, the guide wheels are moved to cooperate with a detection lamp to detect the electric leakage condition, a second motor is turned on to rotate when electric leakage occurs, the cable is placed between arc-shaped clamp heads and is fixed through an electric sliding rail and a hinge rod, and therefore the cable passes an ammeter test. The purpose of conveniently detecting the aging leakage of the cable is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable aging detection technical field, concretely is a kind of cable aging tester. BACKGROUND

[0002] Cable aging detection is important measure to ensure cable safety, reliable operation, cable is oxidized and damaged after long-term use, whether cable is leaking needs to be detected regularly, to avoid security risks, existing aging detection method is usually through artificial hand-held test pen to detect cable aging leakage.

[0003] But this method cannot be accurately detected whether cable is leaking, and a part of area is easily missed, and the detection method of artificial hand-held test pen is not only low in efficiency, but also prone to security risks, which affects the personal safety of workers, so a kind of cable aging tester is proposed. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of prior art, the utility model provides a kind of cable aging tester, with the advantages such as the cable aging leakage is detected, the problems that existing detection method is not only low in efficiency and also has security risks are solved.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of cable aging tester, including bottom plate, the outside of the bottom plate is provided with adjusting device, the outside of the bottom plate is provided with testing device;

[0006] The adjusting device includes first motor, bevel gear rod, threaded taper rod, limit sleeve, lifting column, second motor and U-shaped frame, the inside of the bottom plate is fixedly installed with first motor, the inside of the bottom plate is rotatably connected with bevel gear rod, the outside of the bevel gear rod is engaged with threaded taper rod, the top of the bottom plate is fixedly installed with limit sleeve, the outer surface of the threaded taper rod is screw-connected with lifting column, the top of the lifting column is fixedly installed with second motor, the output of the second motor is fixedly installed with U-shaped frame;

[0007] The testing device includes threaded rod, U-shaped block, test lamp, telescopic rod, electric slide rail and ammeter, the top of the U-shaped frame is screw-connected with threaded rod, the bottom of the threaded rod is rotatably connected with U-shaped block, the right side of the U-shaped block is fixedly installed with test lamp, the outside of the U-shaped block is fixedly installed with telescopic rod, the inside of the U-shaped frame is fixedly installed with electric slide rail, the inside of the U-shaped frame is fixedly installed with ammeter.

[0008] Further, the right side of the bevel gear rod penetrates the inner right wall of bottom plate, and is fixedly connected with the output of first motor, the outer surface of the lifting column is movably connected with the inside of limit sleeve, the bottom of the threaded taper rod penetrates the inner bottom wall of limit sleeve and the top of bottom plate, and is engaged with the outer surface of bevel gear rod.

[0009] Further, the number of the U-shaped blocks is two, the bottom of the threaded rod penetrates the top of the U-shaped frame and is rotationally connected with the top of one of the U-shaped blocks, the inside of the two U-shaped blocks is rotationally connected with a guide wheel, the number of the test lamps is two, and the left side of the two test lamps is fixedly connected with the right side of the two U-shaped blocks.

[0010] Further, the inside of the U-shaped frame is fixedly installed with a supporting plate, the top of the supporting plate is fixedly connected with the bottom of the telescopic rod, the top of the supporting plate is fixedly installed with a spring body, the inside of the spring body is sleeved with the outside of the telescopic rod, the top of the spring body is fixedly connected with the bottom of the other U-shaped block, and the top of the telescopic rod is fixedly connected with the bottom of the other U-shaped block.

[0011] Further, the number of the electric slide rails is two, one of the electric slide rails is located in the inside of the U-shaped frame, the other electric slide rail is located in the inside of the supporting plate, and the outer surface of the two electric slide rails is movably connected with a hinged rod.

[0012] Further, the right side of the ammeter is hingedly connected with two arc-shaped clamp heads, and the opposite side of the two hinged rods is fixedly connected with the top and the bottom of the two arc-shaped clamp heads. Beneficial effects

[0013] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0014] The cable aging tester pushes the device to the detection site through the bottom plate, then drives the bevel gear and the threaded taper rod to rotate by opening the first motor, drives the device inside the U-shaped frame to rise to a suitable height through the lifting column, passes the cable between the two U-shaped blocks, drives one of the U-shaped blocks to move downward by rotating the threaded rod by the worker, fixes the cable between the two guide wheels by cooperating with the spring body and the telescopic rod outside the other U-shaped block, then pushes the device to move along the outer surface of the cable, when encountering a leakage area, the current is transmitted to the U-shaped block through the guide wheel to make the test lamp light up, then reverses the threaded rod to cancel the fixation of the cable, then rotates the ammeter to the upper part by opening the second motor to drive the U-shaped frame to rotate, then moves the cable of the leakage area between the arc-shaped clamp heads, then opens the two electric slide rails to make the two arc-shaped clamp heads close to each other through the hinged rods, and then detects the specific value of the leakage by the ammeter and records, so as to achieve the purpose of conveniently detecting the cable aging leakage. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a partial three-dimensional structure schematic view of the utility model;

[0016] Figure 2 It is a front structure schematic view of the utility model;

[0017] Figure 3 It is a front sectional structure schematic view of the utility model;

[0018] Figure 4 It is a local front structure schematic view of the utility model.

[0019] In the drawing: 1, bottom plate; 2, adjusting device; 201, first motor; 202, bevel gear; 203, threaded taper rod; 204, limit sleeve; 205, lifting column; 206, second motor; 207, U-shaped frame; 3, testing device; 301, threaded rod; 302, U-shaped block; 303, test lamp; 304, telescopic rod; 305, electric sliding rail; 306, ammeter. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0021] Please refer to Figures 1-4 A cable aging tester, comprising a bottom plate 1, the outside of the bottom plate 1 is provided with an adjusting device 2, and the outside of the bottom plate 1 is provided with a testing device 3.

[0022] The adjusting device 2 comprises a first motor 201, a bevel gear 202, a threaded taper rod 203, a limit sleeve 204, a lifting column 205, a second motor 206 and a U-shaped frame 207, the inside of the bottom plate 1 is fixedly installed with the first motor 201, the inside of the bottom plate 1 is rotatably connected with the bevel gear 202, the outside of the bevel gear 202 is engaged with the threaded taper rod 203, the top of the bottom plate 1 is fixedly installed with the limit sleeve 204, the outer surface of the threaded taper rod 203 is threadedly connected with the lifting column 205, the top of the lifting column 205 is fixedly installed with the second motor 206, and the output end of the second motor 206 is fixedly installed with the U-shaped frame 207.

[0023] The testing device 3 comprises a threaded rod 301, a U-shaped block 302, a test lamp 303, a telescopic rod 304, an electric sliding rail 305 and an ammeter 306, the top of the U-shaped frame 207 is threadedly connected with the threaded rod 301, the bottom of the threaded rod 301 is rotatably connected with the U-shaped block 302, the right side of the U-shaped block 302 is fixedly installed with the test lamp 303, the outside of the U-shaped block 302 is fixedly installed with the telescopic rod 304, the inside of the U-shaped frame 207 is fixedly installed with the electric sliding rail 305, and the inside of the U-shaped frame 207 is fixedly installed with the ammeter 306.

[0024] Specifically, as shown in Figure 1 , the inside of the two arc-shaped tongs is provided with a current sensor, and the inside of the ammeter 306 is provided with a display screen and a converter. When the arc-shaped tongs are around the cable through which the leakage current passes, the magnetic change will induce a voltage change in the sensor coil, which is related to the size and direction of the leakage current, so as to obtain the information of the leakage current. Then the converter converts the leakage current signal sensed by the sensor into a readable digital signal. It first converts the sensed current signal into a readable voltage signal through the hyperbolic tangent function, and then converts the voltage signal into a digital signal through an operational amplifier circuit and outputs it to the display screen for display.

[0025] Specifically, as shown in Figure 3 , the first motor 201 is a reversible motor, which means that it can realize forward and reverse rotation. The working principle of the reversible motor is based on changing the phase sequence of the motor power to change the direction of rotation. In a three-phase asynchronous motor, the direction of rotation of the motor can be changed by adjusting any two phases. This operation is called phase conversion, which allows the motor to run in different directions as needed.

[0026] Specificly, as shown in Figure 1 , the top of the threaded rod 301 is provided with an insulating block, which drives the threaded rod 301 to rotate by rotating the insulating block. In addition to the U-shaped block 302 and the internal device, the other parts of the device are made of insulating materials. During detection, workers basically do not need to hold the device to test the cable, thereby greatly increasing the safety of the device and avoiding electric shock accidents.

[0027] In implementation, the following steps are taken:

[0028] 1) First, push the device to the detection site, then turn on the first motor 201 to drive the bevel gear rod 202 to rotate, thereby driving the threaded bevel rod 203 to rotate;

[0029] 2) Then move the lifting column 205 by rotating the threaded bevel rod 203, so as to adjust the test device 3 to the appropriate height;

[0030] 3) Then move the cable between the two guide wheels and rotate the threaded rod 301 to drive the U-shaped block 302 to descend to fix the cable, and move the guide wheel to detect the leakage;

[0031] 4) Finally, when leakage is encountered, turn on the second motor 206 to drive the device to rotate, thereby placing the cable between the arc-shaped tongs and fixing it through the electric slide rail 305 and the hinged rod, so as to test it through the ammeter 306.

[0032] In summary, the cable aging tester, through the bottom plate 1 pushes the device to the detection site, then opens the first motor 201 drives the bevel gear rod 202 and the threaded taper rod 203 to rotate, so that the device inside the U-shaped frame 207 is driven by the lifting column 205 to rise to the appropriate height, then the cable is passed between the two U-shaped blocks 302, and the worker rotates the threaded rod 301 to drive one of the U-shaped blocks 302 to move downward, and the spring body and telescopic rod 304 outside the other U-shaped block 302 cooperate to fix the cable between the two guide rollers, then push the device to move along the outer surface of the cable, when encountering a leakage area, the current will be transmitted to the U-shaped block 302 through the guide roller to make the test lamp 303 light up, then appropriately move the device position and reverse the threaded rod 301 to cancel the fixation of the cable, then open the second motor 206 to drive the U-shaped frame 207 to rotate, so that the ammeter 306 rotates to the upper part, then move the cable of the leakage area between the arc-shaped clamp heads, then open the two electric slide rails 305 to make the two arc-shaped clamp heads approach each other through the hinged rod, then the leakage value can be detected through the ammeter 306 and recorded, so as to achieve the purpose of conveniently detecting the cable aging leakage.

[0033] It should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply these entities or operations have any such actual relationship or order. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0034] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A cable ageing tester comprising a base plate (1) characterised in that: The outside of the bottom plate (1) is provided with an adjusting device (2), and the outside of the bottom plate (1) is provided with a testing device (3); The adjusting device (2) comprises a first motor (201), a bevel gear rod (202), a threaded taper rod (203), a limiting sleeve (204), a lifting column (205), a second motor (206) and a U-shaped frame (207), the inside of the bottom plate (1) is fixedly installed with the first motor (201), the inside of the bottom plate (1) is rotatably connected with the bevel gear rod (202), the outside of the bevel gear rod (202) is engaged with the threaded taper rod (203), the top of the bottom plate (1) is fixedly installed with the limiting sleeve (204), the outer surface of the threaded taper rod (203) is threadedly connected with the lifting column (205), the top of the lifting column (205) is fixedly installed with the second motor (206), and the output end of the second motor (206) is fixedly installed with the U-shaped frame (207). The testing device (3) comprises a threaded rod (301), a U-shaped block (302), a test lamp (303), a telescopic rod (304), an electric sliding rail (305) and an ammeter (306), the top of the U-shaped frame (207) is threadedly connected with the threaded rod (301), the bottom of the threaded rod (301) is rotatably connected with the U-shaped block (302), the right side of the U-shaped block (302) is fixedly installed with the test lamp (303), the outside of the U-shaped block (302) is fixedly installed with the telescopic rod (304), the inside of the U-shaped frame (207) is fixedly installed with the electric sliding rail (305), and the inside of the U-shaped frame (207) is fixedly installed with the ammeter (306).

2. The cable aging tester of claim 1, wherein: The right side of the bevel gear rod (202) penetrates through the inner right wall of the bottom plate (1) and is fixedly connected with the output end of the first motor (201), the outer surface of the lifting column (205) is movably connected with the inside of the limiting sleeve (204), and the bottom of the threaded taper rod (203) penetrates through the inner bottom wall of the limiting sleeve (204) and the top of the bottom plate (1) and is engaged with the outer surface of the bevel gear rod (202).

3. The cable aging tester of claim 1, wherein: The number of the U-shaped blocks (302) is two, the bottom of the threaded rod (301) penetrates through the top of the U-shaped frame (207) and is rotatably connected with the top of one of the U-shaped blocks (302), the inside of each of the two U-shaped blocks (302) is rotatably connected with a guide wheel, and the number of the test lamps (303) is two, and the left sides of the two test lamps (303) are fixedly connected with the right sides of the two U-shaped blocks (302), respectively.

4. The cable aging tester of claim 1, wherein: The inside of the U-shaped frame (207) is fixedly installed with a supporting plate, the bottom of the telescopic rod (304) is fixedly connected with the top of the supporting plate, the top of the supporting plate is fixedly installed with a spring body, the inside of the spring body is sleeved with the outside of the telescopic rod (304), the top of the spring body is fixedly connected with the bottom of the other U-shaped block (302), and the top of the telescopic rod (304) is fixedly connected with the bottom of the other U-shaped block (302).

5. The cable aging tester of claim 1, wherein: The number of the electric slide rails (305) is two, one of which is located inside the U-shaped frame (207), and the other is located inside the support plate, and the outer surfaces of the two electric slide rails (305) are movably connected with the articulated rods.

6. A cable aging tester according to claim 5, wherein: The right side of the ammeter (306) is hingedly connected with two arc-shaped clamp heads, and the opposite sides of the two articulated rods are fixedly connected with the top and bottom of the two arc-shaped clamp heads, respectively.

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