A wire detector for power facilities

Abstract

This invention relates to the field of wire elongation testing, and more particularly to a wire detector for power facilities, comprising an electric turntable, clamping components, connecting components, a first pushing component, and a U-shaped component; an electric turntable is mounted on each of the two first movable sliders; multiple clamping components for clamping and fixing the wire sheath are mounted on the electric turntable; a first pushing component is mounted on a mounting plate via the connecting component, and the U-shaped component is fixedly connected to the telescopic part of the first pushing component; the U-shaped component is located in the middle of the two electric turntables; multiple smearing blocks are installed in the slots of the U-shaped component, and the wire sheath is marked at multiple points by the smearing blocks. This invention, by setting multiple clamping components with elastic telescopic blocks, can work together to maintain clamping force when the wire sheath's elongation diameter decreases, preventing the wire sheath from slipping off; and part of the wire sheath is wrapped around the receiving groove of the electric turntable with a rubber layer or a frosted finish, increasing friction and offsetting part of the tensile force, thus solving the problem of soft clamping failure and avoiding damage to the wire sheath by hard clamping.

Description

Technical Field

[0001] This invention relates to the field of wire elongation testing, and more particularly to a wire detector for power facilities. Background Technology

[0002] Power facilities use a variety of wires, and to ensure the normal operation of these wires, it is necessary to test the elongation of the wire sheath.

[0003] In existing technologies, the diameter of the wire sheath decreases when stretched, presenting two problems: first, using a soft-grip clamp may fail to hold the sheath when its diameter shrinks; second, using a hard-grip clamp can deform the clamped area, making the sheath prone to breakage. This prevents proper tensile testing. Furthermore, when testing the tensile strength of the wire sheath, the broken sheath bends, making it difficult to measure its length and leading to inaccurate calculations of the tensile strength. To address these issues, this invention is proposed. Summary of the Invention

[0004] To overcome two major problems in wire sheath stretching detection, this invention provides a wire detector for power facilities. These problems include: firstly, soft extrusion clamps cannot clamp the wire sheath tightly because the diameter of the wire sheath becomes smaller when stretched; and secondly, hard extrusion clamps are prone to deforming the wire sheath, causing it to break at the clamping point and hindering the stretching detection.

[0005] The technical implementation of the present invention is as follows: a wire detector for power facilities, comprising a mounting plate, a first linear guide rail and a first movable slider;

[0006] A first linear guide rail is mounted on the side of the mounting plate; two first movable sliders are slidably connected on the first linear guide rail, and the two first movable sliders are located on both sides of the first linear guide rail.

[0007] It also includes an electric turntable, a clamping component, a connecting component, a first pushing component, and a U-shaped component; an electric turntable is installed on each of the two first moving sliders; multiple clamping components for clamping and fixing the wire sheath are installed on the electric turntable; the first pushing component is installed on the mounting plate through the connecting component, and the U-shaped component is fixedly connected to the telescopic part of the first pushing component; the U-shaped component is located in the middle of the two electric turntables; multiple application blocks are installed in the slot of the U-shaped component, and the wire sheath is marked at multiple points by the application blocks.

[0008] To further explain, the outer ring surface of the electric turntable has a receiving groove adapted to the wire sheath, and a rubber layer is provided in the receiving groove to increase the friction with the wire sheath.

[0009] To further explain, the outer ring surface of the electric turntable has a receiving groove adapted to the wire sheath. The receiving groove is frosted to increase the friction with the wire sheath.

[0010] To further explain, an arc-shaped limiting housing is provided between adjacent clamping components, and the arc-shaped limiting housing is fixedly connected to the electric turntable.

[0011] To further explain, the clamping component clamps the wire sheath using an elastic telescopic block.

[0012] To further explain, the side of the elastic expansion block that contacts the sheath is set as a plane.

[0013] To further explain, the clamping component near the middle of the wire sheath on the electric turntable does not have an elastic telescopic block, but an inflatable air bladder; and a magnetic block is fixed to one side of the clamping component, and the magnetic block is magnetically attracted to the electric turntable.

[0014] Further explanation: It also includes a connecting frame, a detector, a second linear guide rail, a second movable slider, a second pusher, and a perforated plate; the connecting frame is fixedly connected to one side of the mounting plate; the detector is mounted on the connecting frame, with the detector facing the wire sheath; the second linear guide rail is mounted on the connecting frame, and two second movable sliders are slidably connected to the second linear guide rail, with the two second movable sliders located on both sides of the second linear guide rail; multiple second pushers are fixedly connected to the second movable sliders; the clamping component for mounting the inflatable airbag is fixedly connected to the perforated plate; the telescopic part of the second pusher can be inserted into the hole of the perforated plate.

[0015] To further explain, the electric turntable contains an electromagnet, which attracts the magnetic blocks.

[0016] To further explain, there is a semi-circular notch on the side of the inflatable airbag that contacts the sheath.

[0017] This invention uses multiple clamping components with elastic telescopic blocks. When the diameter of the wire sheath decreases due to stretching, they can work together to maintain the clamping force and prevent the wire sheath from slipping off. In addition, part of the wire sheath is wrapped around the electric turntable receiving groove with a rubber layer or a frosted finish, which increases the friction and offsets part of the stretching force. This solves the problem of soft clamping failure and avoids hard clamping damaging the wire sheath.

[0018] The electric turntable of this invention keeps the marking point at a distance from the clamping component, avoiding the influence of the diameter change of the wire sheath near the clamping end on the detection accuracy; after the wire sheath is broken, the clamping component with an inflatable airbag and related components are used to straighten the bent wire sheath, and the distance between the marking point and the detector is used to measure the elongation rate. There is no need for manual measurement or high-precision camera to capture the image, which reduces the technical requirements of the detection equipment, improves the measurement accuracy, and reduces the workload of the detection personnel.

[0019] When the sheath of the present invention breaks at the marked point, the overall elongation rate can be calculated by averaging the distance between the marked points in the unbroken area, ensuring the feasibility and accuracy of the elongation rate measurement. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure disclosed in this invention;

[0021] Figure 2 for Figure 1 Enlarged view of point A;

[0022] Figure 3 This is a diagram showing the state of the two electric turntables after they have moved towards each other, as disclosed in this invention.

[0023] Figure 4 This is a partial structural diagram disclosed in this invention;

[0024] Figure 5 This is a cross-sectional view of the U-shaped component disclosed in this invention;

[0025] Figure 6 This is a schematic diagram of the combined structure of the electric turntable and clamping component disclosed in this invention.

[0026] Figure 7 This is an exploded view of the arc-shaped limiting shell disclosed in this invention.

[0027] Figure 8 This is a diagram showing the state of the clamping member for installing an inflatable airbag as it moves downwards, as disclosed in this invention.

[0028] Figure 9 This is a schematic diagram of the structure of the elastic telescopic block, inflatable airbag, and magnetic block disclosed in this invention.

[0029] Figure 10 This is a schematic diagram showing that the diameters of the sheaths at both ends are uneven when the sheaths in the prior art are stretched.

[0030] In the diagram: 1-Mounting plate, 2-First linear guide rail, 3-First moving slider, 4-Electric turntable, 5-Clamping component, 5a-Arc-shaped limiting housing, 6-Connector, 7-First pushing component, 8-U-shaped component, 8a-Painting block, 5b-Elastic telescopic block, 5c-Inflatable airbag, 5d-Magnetic block, 201-Connecting frame, 202-Detector, 203-Second linear guide rail, 204-Second moving slider, 205-Second pushing component, 206-Perforated plate, 100-Wire sheath, 100a-Marker point. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1: A wire detector for power facilities, such as Figures 1-10 As shown, it includes a mounting plate 1, a first linear guide rail 2, and a first movable slider 3;

[0033] A first linear guide rail 2 is mounted on the side of the mounting plate 1; two first movable sliders 3 are slidably connected to the first linear guide rail 2, and the two first movable sliders 3 are located on both sides of the first linear guide rail 2, so as to... Figure 1 The angle is the reference point, i.e., the top and bottom sides;

[0034] It also includes an electric turntable 4, a clamping component 5, a connecting component 6, a first pushing component 7, and a U-shaped component 8; an electric turntable 4 is installed on each of the two first moving sliders 3; multiple clamping components 5 for clamping and fixing the wire sheath are installed on the electric turntable 4, and the clamping components 5 are arranged in an arc shape on the electric turntable 4; the first pushing component 7 is installed on the mounting plate 1 through the connecting component 6, and the U-shaped component 8 is fixedly connected to the telescopic part of the first pushing component 7; the U-shaped component 8 is located in the middle of the two electric turntables 4; multiple application blocks 8a are installed in the slot of the U-shaped component 8, and the wire sheath is marked at multiple points by the application blocks 8a.

[0035] The outer ring surface of the electric turntable 4 is provided with a receiving groove for the wire sheath, and a rubber layer is provided in the receiving groove to increase the friction with the wire sheath.

[0036] The outer ring surface of the electric turntable 4 is provided with a receiving groove for the wire sheath. The receiving groove is sanded to increase the friction with the wire sheath.

[0037] An arc-shaped limiting housing 5a is provided between adjacent clamping parts 5, and the arc-shaped limiting housing 5a is fixedly connected to the electric turntable 4.

[0038] like Figure 9 As shown, the clamping member 5 clamps the wire sheath through the elastic telescopic block 5b. The elastic telescopic block 5b retracts when the wire sheath is installed, and gently squeezes the wire sheath when clamping it.

[0039] The side of the elastic telescopic block 5b that contacts the wire sheath is set as a plane, so that the wire sheath can be squeezed after the diameter is reduced.

[0040] In existing technologies, the diameter of the wire sheath decreases when stretched, presenting two problems: first, using a soft-grip clamp may fail to hold the sheath when its diameter shrinks; second, using a hard-grip clamp can deform the clamped area, making the sheath prone to breakage. This prevents proper tensile testing. Furthermore, when testing the tensile strength of the wire sheath, the broken sheath bends, making it difficult to measure its length and leading to inaccurate calculations of the tensile strength. To address these issues, this invention is proposed.

[0041] In operation, the operator mounts the wire sheath 100 onto two electric turntables 4. The ends of the wire sheath 100 are secured by multiple clamping members 5. An arc-shaped limiting housing 5a is provided between adjacent clamping members 5 to facilitate the operator inserting the wire sheath into the clamping members 5. After the wire sheath is inserted, all clamping members 5 are controlled to clamp the wire sheath. Once the wire sheath is installed, as... Figure 1 As shown, the two first movable sliders 3 are controlled to move away from each other on the first linear guide rail 2 to straighten the wire sheath and prevent it from bending. Then, the telescopic part of the first pusher 7 is controlled to push the U-shaped part 8 and the coating block 8a towards the wire sheath 100. The wire sheath is inserted into the slot of the U-shaped part 8, and the wire sheath contacts the coating block 8a, thus achieving the application of multiple marking points 100a on the wire sheath. Then, the upper electric turntable 4 is controlled to rotate counterclockwise, and the lower electric turntable 4 is controlled to rotate clockwise. At the same time, the two first movable sliders 3 move towards each other on the first linear guide rail 2, thus allowing the invention to move from... Figure 1 State transition Figure 3 In this state, the wire is not only fixed at both ends by the clamping parts 5, but also has a length wrapped around the receiving groove of the electric turntable 4.

[0042] After that, as Figure 3 As shown, the two first movable sliders 3 are controlled to move separately on the first linear guide rail 2, continuously stretching the wire sheath until it breaks. Further, during the stretching process, the diameter of the wire sheath continuously decreases. At this time, the present invention uses multiple clamping members 5 to clamp the wire sheath, and simultaneously uses elastic telescopic blocks 5b to softly compress the wire sheath. Even if the diameter of the wire sheath stretches to a smaller diameter in one of the clamping members 5, the other clamping members 5 still maintain the clamping and stretching work on the wire sheath. Moreover, the clamping member 5 at the point where the diameter decreases can readjust the extension distance of the elastic telescopic blocks 5b to continue clamping the wire sheath after the diameter decreases. In this way, the coordinated work of multiple clamping members 5 can avoid losing the clamping force on the wire sheath, which would prevent the electric turntable 4 from stretching the wire sheath. At the same time, the present invention allows part of the wire sheath to be wound around the receiving groove of the electric turntable 4. Because the receiving groove is provided with a rubber layer or is frosted, the friction between the wire sheath and the receiving groove is large, which can be used to offset part of the stretching force.

[0043] After the sheath breaks, the elongation rate of the sheath can be obtained by measuring the change in length of the sheath between the marked points.

[0044] It should be noted that, as Figure 10As shown, when the wire sheath is stretched by two clamps in the prior art, the diameter of the wire sheath on the side closer to the clamps is not a uniform size after stretching, resulting in a larger diameter closer to the clamps. In this invention, by setting up an electric turntable 4 and allowing part of the wire sheath to wrap around the receiving groove of the electric turntable 4 before stretching, the marking point 100a can be a certain distance away from the clamping member 5, so that the section of the wire sheath whose diameter changes after stretching does not appear in the area of ​​the marking point 100a, thereby avoiding affecting the accuracy of the wire sheath stretching detection.

[0045] Example 2: Based on Example 1, as follows Figures 1-10 As shown, the clamping member 5 on the electric turntable 4 near the middle of the wire sheath 100 does not have an elastic telescopic block 5b, but has an inflatable airbag 5c; and a magnetic block 5d is fixed to one side of the clamping member 5, and the magnetic block 5d is magnetically attracted to the electric turntable 4.

[0046] It also includes a connecting frame 201, a detector 202, a second linear guide rail 203, a second movable slider 204, a second pusher 205, and a perforated plate 206; the connecting frame 201 is fixedly connected to one side of the mounting plate 1; the detector 202 is mounted on the connecting frame 201, and the detector 202 faces the wire sheath 100; the second linear guide rail 203 is mounted on the connecting frame 201, and two second movable sliders 204 are slidably connected to the second linear guide rail 203, and the two second movable sliders 204 are located on both sides of the second linear guide rail 203; multiple second pushers 205 are fixedly connected to the second movable sliders 204; the perforated plate 206 is fixedly connected to the clamping member 5 for mounting the inflatable airbag 5c; the telescopic part of the second pusher 205 can be inserted into the hole of the perforated plate 206.

[0047] The electric turntable 4 is equipped with an electromagnet, which attracts the magnetic block 5d.

[0048] The inflatable airbag 5c has a semi-circular notch on the side that contacts the skin. By inflating the airbag 5c, it can better straighten the skin.

[0049] After the wire sheath is stretched and broken, the electric turntable 4 is controlled to rotate and reset. The upper electric turntable 4, as... Figure 2In the state shown, the perforated plate 206 is facing the telescopic part of the second pusher 205. Because the wire insulation is broken, the broken part of the wire insulation will bend, making it difficult to measure the length accurately after stretching. At this time, the telescopic part of the second pusher 205 can be controlled to push out and insert into the perforated plate 206. Then, the second moving slider 204 is controlled to move downward on the second linear guide 203, thereby driving the clamping part 5, the magnetic block 5d, and the perforated plate 206 with the inflatable airbag 5c installed to move downward. The inflatable airbag 5c is inflated, so that the inflatable airbag 5c limits the wire insulation, and then the clamping part 5... During the downward movement, the clamping member 5 can be used to straighten the sheath again. In this way, the detector 202 can be used to detect the marker points 100a and measure the distance between the marker points 100a. At the same time, the distance is compared with the distance before the sheath was stretched, so the stretching rate of the sheath before each marker point can be calculated. Similarly, the broken sheath located at the bottom is initially limited by the clamping member 5 with the inflatable airbag 5c installed. Therefore, by controlling the clamping member 5 with the inflatable airbag 5c installed to move upward, the sheath can be straightened, and the stretching rate of the sheath located at the bottom can be detected by the detector 202. Furthermore, if the sheath breaks at mark 100a, it becomes impossible to calculate the overall tensile strength of the marked area. This invention, however, can average the tensile strength of the entire marked area by measuring the distance between all unbroken marks 100a, thus obtaining the sheath's tensile strength. Moreover, this invention eliminates the need for manual measurement with a ruler, significantly reducing the workload of inspectors. Furthermore, by using detector 202 to detect the broken sheath, it eliminates the need for a high-definition, high-precision camera to capture the moment of breakage and calculate the tensile strength from the image, greatly improving the accuracy and convenience of tensile strength measurement. It also has low technical requirements for the testing equipment, allowing for widespread adoption.

[0050] It should be noted that after the tensile test is completed and the tensile rate is calculated, the clamping part 5 is controlled to release the clamping of the wire sheath. Then the operator takes out the wire sheath. After that, the second moving slider 204 is controlled to move and reset on the second linear guide rail 203, which drives the magnetic block 5d to be magnetically attracted to the electric turntable 4 again. Then the telescopic part of the second pusher 205 retracts and is no longer inserted into the perforated plate 206.

[0051] The above embodiments are provided for those skilled in the art to implement or use the present invention. Those skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should be the maximum scope that conforms to the innovative features mentioned in the claims.

Claims

1. A wire detector for power facilities, comprising a mounting plate (1), a first linear guide rail (2) and a first movable slider (3); the first linear guide rail (2) is mounted on the side of the mounting plate (1); two first movable sliders (3) are slidably connected on the first linear guide rail (2), and the two first movable sliders (3) are located on both sides of the first linear guide rail (2); Its features are, It also includes an electric turntable (4), a clamping component (5), a connecting component (6), a first pushing component (7), and a U-shaped component (8); an electric turntable (4) is installed on each of the two first moving sliders (3); multiple clamping components (5) for clamping and fixing the wire sheath are installed on the electric turntable (4); the first pushing component (7) is installed on the mounting plate (1) through the connecting component (6), and the U-shaped component (8) is fixedly connected to the telescopic part of the first pushing component (7); the U-shaped component (8) is located in the middle of the two electric turntables (4); multiple smearing blocks (8a) are installed in the slot of the U-shaped component (8), and the wire sheath is marked at multiple points by the smearing blocks (8a); The clamping component (5) clamps the wire sheath through the elastic telescopic block (5b); The clamping part (5) on the electric turntable (4) near the middle of the wire sheath (100) does not have an elastic telescopic block (5b), but has an inflatable air bag (5c); and a magnetic block (5d) is fixed to one side of the clamping part (5), and the magnetic block (5d) is magnetically attracted to the electric turntable (4). It also includes a connecting frame (201), a detector (202), a second linear guide rail (203), a second movable slider (204), a second pusher (205), and a perforated plate (206); the connecting frame (201) is fixedly connected to one side of the mounting plate (1); the detector (202) is installed on the connecting frame (201), and the detector (202) faces the wire sheath (100); the second linear guide rail (203) is installed on the connecting frame (201), and two second movable sliders (204) are slidably connected on the second linear guide rail (203), and the two second movable sliders (204) are located on both sides of the second linear guide rail (203); multiple second pushers (205) are fixedly connected to the second movable sliders (204); the perforated plate (206) is fixedly connected to the clamping member (5) for installing the inflatable airbag (5c); the telescopic part of the second pusher (205) can be inserted into the hole of the perforated plate (206).

2. A wire detector for power facilities according to claim 1, characterized in that, The outer ring surface of the electric turntable (4) is provided with a receiving groove for the wire sheath, and a rubber layer is provided in the receiving groove to increase the friction with the wire sheath.

3. A wire detector for power facilities according to claim 1, characterized in that, The outer ring surface of the electric turntable (4) is provided with a receiving groove for the wire sheath. The receiving groove is sanded to increase the friction with the wire sheath.

4. A wire detector for power facilities according to claim 1, characterized in that, An arc-shaped limiting housing (5a) is provided between adjacent clamping parts (5), and the arc-shaped limiting housing (5a) is connected to the electric turntable (4).

5. A wire detector for power facilities according to claim 1, characterized in that, The side of the elastic expansion block (5b) that contacts the wire sheath is set as a plane.

6. A wire detector for power facilities according to claim 1, characterized in that, An electromagnet is installed inside the electric turntable (4), which attracts the magnetic block (5d).

7. A wire detector for power facilities according to claim 1, characterized in that, The inflatable airbag (5c) has a semi-circular notch on the side that contacts the sheath.

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