Power line performance detection equipment and method

Abstract

The invention relates to the technical field of power line detection, in particular to power line performance detection equipment and method.The power line performance detection equipment comprises a base plate, and a supporting frame is installed at the upper end of the base plate; the device further comprises an end clamping mechanism, the end clamping mechanism is arranged on the supporting frame and used for clamping the two ends of the power line, the end clamping mechanism comprises a connecting plate installed at the front end of the supporting frame, and two rotating rods which are symmetrically distributed in the left-right direction are rotationally connected to the connecting plate in a penetrating mode. The end clamping mechanism can clamp and limit the interface and the plug of the power line at the same time, the first driving part can drive the two end clamping frames to rotate in a reciprocating mode, the connection strength of the interface and the plug of the power line and the cable is detected at the same time, the operation steps of detecting the two ends of the power line respectively are effectively reduced, and the detection efficiency is improved. And the detection efficiency of two ends of the power line is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power line detection, and in particular to a power line performance detection device and method. Background Art

[0002] Power cords are wires that transmit electrical current. Current is typically transmitted point-to-point. Power cords can be categorized by their intended use as AC (alternating current) or DC (direct current). AC power cords typically carry higher-voltage alternating current. Due to their higher voltage, these cables require standardized safety certification before they can be officially manufactured.

[0003] The power cord is mainly composed of a plug, a cable and an interface. In order to avoid potential safety hazards when the power cord is used for a long time, such as damage to the insulation material or breakage of the conductor, it is necessary to test the tensile strength of the power cord, the durability of the power cord and the connection strength between the various parts of the power cord. When testing the power cord, the existing equipment usually first clamps one end of the power cord with a clamping device, and then connects the other end of the power cord to a counterweight to keep the power cord in a straight state. Then, the driving device is started, and the driving device drives the clamping device to rotate back and forth, and the clamping device drives the end of the power cord to rotate back and forth. The power cord is moved, thereby realizing the durability test of the power cord. However, the existing testing equipment can only test one end of the power cord during one testing process, and then the power cord is removed to test the other end. This not only increases the testing operation steps, but also reduces the testing efficiency. In addition, the existing testing equipment can only evaluate the durability of the power cord by testing the bending resistance of the plug or interface at the connection point with the cable, resulting in low accuracy of the power cord durability test result. When testing the performance of the power cord, the existing testing equipment can only use one testing method to test the performance of the power cord. The testing method is single and has low applicability.

[0004] Therefore, there is an urgent need to provide a power cord performance testing device that can improve testing efficiency and increase testing methods. Summary of the Invention

[0005] Based on this, it is necessary to provide a power line performance detection device and method, which aims to solve the problems caused by existing detection equipment when detecting power lines.

[0006] In order to achieve the above object, the present invention adopts the following technical solution: A power line performance detection device includes: a base plate, and a support frame is installed on the upper end of the base plate.

[0007] The power cord performance testing equipment also includes an end clamping mechanism, which is arranged on a support frame and is used to clamp the two ends of the power cord. The end clamping mechanism includes a connecting plate installed at the front end of the support frame, and two rotating rods symmetrically distributed on the left and right are rotatably connected to the connecting plate. The front and rear ends of the rotating rod are respectively connected to a clamping part and a pulley, and a belt is connected between the two pulleys.

[0008] The power line performance detection device further includes a lifting mechanism connected to the lower side of the connecting plate.

[0009] The power cord performance testing device also includes a wire clamp mechanism, which is connected to the lower side of the lifting mechanism. The wire clamp mechanism includes a slide rail plate connected to the lower side of the lifting mechanism and having a sliding hole in the middle. Two sliding blocks are slidably connected in the sliding hole on the slide rail plate. The front end of the sliding block is connected to a rotating part, and the front side of the rotating part is connected to the wire clamp part.

[0010] The rotating part includes a connecting rod rotatably connected to the front end of the sliding block, a limiting sleeve is provided on the outer periphery of the connecting rod and fixedly connected to the front end of the sliding block, two limiting openings distributed at right angles are provided at the front end of the limiting sleeve, a sliding ring is provided on the sliding sleeve on the connecting rod, and a limiting block is installed at the rear end of the sliding ring.

[0011] In the power cord durability test, the two rotating clamping parts first drive the two ends of the power cord to rotate, and then the lifting mechanism stretches the cable through the wire clamp mechanism; the testing equipment can test the connection strength of the connection between the power cord plug and the cable, the connection between the interface and the cable, and the tensile performance of the cable itself.

[0012] Preferably, the end clamping mechanism further includes a driving member 1 for driving the pulley to rotate.

[0013] Preferably, the lifting mechanism includes a positioning plate installed at the lower end of the connecting plate, a sliding groove is opened at the lower end of the positioning plate, a lifting plate is slidably connected in the sliding groove, the lower end of the lifting plate is fixedly connected to the slide rail plate, and the rear ends of the lifting plate and the positioning plate are jointly installed with a driving component 2.

[0014] Preferably, the wire clamp mechanism further comprises two driving members three mounted on the rear end of the slide rail plate via a mounting seat, and the driving members three are fixedly connected to the corresponding sliding blocks.

[0015] Preferably, the clamping part includes an end clamping frame installed at the front end of the rotating rod and having a U-shaped structure, a partition plate is installed at the middle of the inner end of the middle section of the end clamping frame, the partition plate and the two side sections of the end clamping frame are jointly rotated and connected to a threaded rod, the threaded rod is provided with two threaded teeth with opposite spiral directions, and the threaded rod is symmetrically threaded with a clamping member.

[0016] Preferably, the rotating part further comprises a plurality of movable grooves circumferentially opened on the annular surface of the connecting rod, wherein movable blocks are slidably connected in the movable grooves, and the plurality of movable blocks are fixedly connected to the inner annular surface of the sliding ring at the same time.

[0017] Preferably, the wire clamp portion includes a wire clamping frame installed at the front end of the connecting rod and having a U-shaped structure. Two wire clamping pieces are symmetrically arranged inside the wire clamping frame. One wire clamping piece is fixedly installed on a side wall section of the wire clamping frame, and the other wire clamping piece is rotatably connected to a locking screw.

[0018] Preferably, the wire clamp part also includes a locking screw threadedly connected to the corresponding side wall section of the wire clamping frame, and a guide rod is provided on one side of the locking screw, which slides through the corresponding side wall section of the wire clamping frame. The guide rod is fixedly connected to the corresponding wire clamping member, and a roller is rotatably connected to the wire clamping frame through a connecting frame.

[0019] Preferably, two stop blocks fixedly connected to the front end of the limit sleeve are symmetrically provided at the rear of the sliding ring, and the two stop blocks are respectively located at opposite sides of the two limit openings.

[0020] In addition, the present invention also provides a method for detecting power line performance, which specifically includes the following steps:

[0021] S1: First, install the plug and connector at both ends of the power cord on the two clamping parts respectively, and then connect the power cord cable to the cable clamp mechanism;

[0022] S2: During the power cord bending test, the two clamping parts rotate repeatedly, causing the plug and connector to rotate repeatedly. The two clamping mechanisms pull the cable. After a period of time, the connection between the plug and connector and the cable is observed.

[0023] S3: After the test in step S2 is completed, if there are no problems with the cable at the plug and the interface, continue to test the cable tensile performance. At this time, the two wire clamping mechanisms horizontally clamp the middle position of the cable, and the wire clamping mechanisms are activated to test the tensile performance of the cable.

[0024] S4: After the cable tensile performance test in step S3 is completed, if there is no problem with the cable, release the clamping of the cable by one wire clamp part, and adjust the clamping state of the two wire clamp parts by two rotating parts, then move the two wire clamp parts respectively to the bottom of the two clamping parts, and then push the wire clamp mechanism by the lifting mechanism. On the basis of the bending resistance test in step S2, the durability of one end of the power cord is comprehensively evaluated by observing the connection between the cable and the plug or interface. Similarly, release the clamping of the working wire clamp part on the cable, clamp the cable with the other wire clamp part, and repeat the connection between the power cable and the plug or interface to comprehensively evaluate the durability of the other end of the power cord.

[0025] S5: After the various tests on the power cord are completed, the power cord is removed from the testing device and the test is completed.

[0026] In summary, the present invention has the following beneficial effects:

[0027] 1. The end clamp mechanism adopted in the present invention can clamp and limit the interface and plug of the power cord at the same time, and the driving member 1 can drive the two end clamp frames to rotate back and forth, so as to realize the simultaneous detection of the plug and interface of the power cord and the bending strength of the cable, effectively reducing the operating steps of separately detecting both ends of the power cord and improving the detection efficiency of both ends of the power cord.

[0028] 2. The end clamping mechanism used in the present invention cooperates with the lifting mechanism to realize tensile testing of the connection points between the plug and the interface of the power cord and the cable respectively, and cooperates with the bending resistance test of the power cord to increase the conditions for evaluating the durability of the power cord and improve the accuracy of the durability test of the power cord.

[0029] 3. The end clamping mechanism, lifting mechanism and wire clamping mechanism adopted in the present invention cooperate with each other. The durability test of the power cord, the connection strength test of the power cord plug and interface with the cable, and the tensile performance test of the power cord cable can all be achieved on one testing device, which effectively solves the problem of the single testing method of the existing testing equipment and improves the diversity and applicability of the testing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below with reference to the accompanying drawings and examples.

[0031] Figure 1 A schematic diagram of the three-dimensional structure of the present invention from a first viewing angle is shown.

[0032] Figure 2 A schematic diagram of the three-dimensional structure of the present invention from a second viewing angle is shown.

[0033] Figure 3 A front view of the present invention is shown.

[0034] Figure 4 Shown Figure 3 Cross-sectional view of AA in the figure.

[0035] Figure 5 Shown Figure 3 Cross-sectional view of the BB.

[0036] Figure 6 A structural schematic diagram of the end clamping mechanism of the present invention is shown.

[0037] Figure 7 The figure shows a structural schematic diagram of the wire clamp mechanism of the present invention.

[0038] Figure 8 The diagram shows the working status of the power cord anti-bending detection and the power cord cable strength detection of the present invention.

[0039] Figure 9 The diagram shows the working states of the plug, the interface and the cable tensile performance test of the power cord of the present invention.

[0040] The above drawings include the following reference numerals: 1. base plate; 2. support frame; 3. end clamping mechanism; 30. connecting plate; 31. rotating rod; 32. clamping portion; 320. end clamping frame; 321. partition plate; 322. threaded rod; 323. clamping member; 33. pulley; 34. driving member 1; 4. lifting mechanism; 40. positioning plate; 41. sliding groove; 42. lifting plate; 43. driving member 2; 5. wire clamp Mechanism; 50, slide plate; 51, sliding block; 52, rotating part; 520, connecting rod; 521, limiting sleeve; 522, limiting opening; 523, sliding ring; 524, limiting block; 525, moving groove; 526, moving block; 527, shift block; 53, wire clamping part; 530, wire clamping frame; 531, wire clamping part; 532, locking screw; 533, guide rod; 534, roller; 54, driving part three. DETAILED DESCRIPTION

[0041] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0042] See Figure 1-Figure 3 A power line performance detection device includes a base plate 1, and a support frame 2 is installed on the upper end of the base plate 1.

[0043] During specific work, the base plate 1 is fixed to the working position by bolts.

[0044] See Figure 1 and Figure 2 The power cord performance testing equipment also includes an end clamping mechanism 3, which is arranged on the support frame 2 and is used to clamp the two ends of the power cord. The end clamping mechanism 3 includes a connecting plate 30 installed at the front end of the support frame 2, and two rotating rods 31 symmetrically distributed on the left and right are rotatably connected to the connecting plate 30. The front and rear ends of the rotating rod 31 are respectively connected to a clamping part 32 and a pulley 33, and a belt is connected between the two pulleys 33.

[0045] See Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 6 The clamping portion 32 includes an end clamping frame 320 installed at the front end of the rotating rod 31 and having a U-shaped structure. A partition plate 321 is installed at the middle of the inner end of the middle section of the end clamping frame 320. The partition plate 321 and the two side sections of the end clamping frame 320 are rotated together and connected to a threaded rod 322. The threaded rod 322 is provided with two threaded teeth with opposite spiral directions, and the threaded rod 322 is symmetrically threaded with a clamping piece 323.

[0046] During specific operation, first place the plug of the power cord to be tested between the two clamping members 323 in the same end clamping frame 320. The structure of the clamping member 323 matches the plug or interface of the power cord to be clamped. Then, rotate the corresponding threaded rod 322. The threaded rod 322 drives the corresponding two clamping members 323 to move closer to each other and clamp the plug of the power cord. Similarly, place the interface of the power cord between the two clamping members 323 in the other end clamping frame 320. Then, rotate the corresponding threaded rod 322. The threaded rod 322 drives the corresponding two clamping members 323 to move closer to each other and clamp the interface of the power cord.

[0047] See Figure 1 、 Figure 4 and Figure 5 The power line performance detection device further includes a lifting mechanism 4 , which is connected to the lower side of the connecting plate 30 .

[0048] See Figure 1 、 Figure 2 、 Figure 4 and Figure 5 The power cord performance testing device also includes a wire clamp mechanism 5, which is connected to the lower side of the lifting mechanism 4. The wire clamp mechanism 5 includes a slide plate 50 connected to the lower side of the lifting mechanism 4 and having a sliding hole in the middle. Two sliding blocks 51 are slidably connected in the sliding hole on the slide plate 50. The front end of the sliding block 51 is connected to a rotating part 52, and the front side of the rotating part 52 is connected to a wire clamp part 53.

[0049] See Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 7 The wire clamping part 53 includes a wire clamping frame 530 with a U-shaped structure installed at the front end of the rotating part 52. Two wire clamping parts 531 are symmetrically arranged inside the wire clamping frame 530. One wire clamping part 531 is fixedly installed on a side wall section of the wire clamping frame 530, and the other wire clamping part 531 is rotatably connected to a locking screw 532.

[0050] See Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 7 The wire clamping portion 53 also includes a locking screw 532 threadedly connected to the corresponding side wall segment of the wire clamping frame 530. A guide rod 533 is provided on one side of the locking screw 532 and slides through the corresponding side wall segment of the wire clamping frame 530. The guide rod 533 is fixedly connected to the corresponding wire clamping member 531. A roller 534 is rotatably connected to the wire clamping frame 530 through a connecting frame.

[0051] During specific operation, in the initial state, the two wire clamping frames 530 are respectively located directly below the two end clamping frames 320 and pass through them horizontally, and then the cables of the power cord are respectively placed on the upper ends of the lower wire clamping members 531 in the two wire clamping frames 530. The structure of the wire clamping members 531 matches the cables of the power cord to be clamped, and then the two locking screws 532 are rotated in turn. The locking screws 532 drive the lower wire clamping member 531 to move upward and drive the cable to fit tightly against the upper wire clamping member 531. The two wire clamping members 531 of the same wire clamping frame 530 clamp and limit the cable, and the roller 534 guides the cable to avoid the cable from being bent at the contact position with the detection equipment after the connection limit, to avoid damage to the cable outside the detection, and to ensure the accuracy of subsequent detection.

[0052] See Figure 1 、 Figure 4 and Figure 5 The lifting mechanism 4 includes a positioning plate 40 installed at the lower end of the connecting plate 30. A sliding groove 41 is opened at the lower end of the positioning plate 40. A lifting plate 42 is slidably connected in the sliding groove 41. The lower end of the lifting plate 42 is fixedly connected to the slide rail plate 50. The rear ends of the lifting plate 42 and the positioning plate 40 are jointly installed with a driving member 43.

[0053] During operation, after the power line is limited, the second driving member 43 is started. The second driving member 43 is a displacement driving member, which can be a hydraulic push rod or an electric push rod. The second driving member 43 drives the lifting plate 42 to move downward, and the lifting plate 42 drives the slide plate 50 to move downward. The slide plate 50 drives the rotating part 52 and the wire clamping part 53 to move through the two sliding blocks 51. The wire clamping part 53 drives the cable to move, so that the cable between the wire clamping part 53 and the clamping part 32 is in a straight state (such as Figure 8 shown).

[0054] See Figure 1 、 Figure 2 、 Figure 4 and Figure 5 The end clamping mechanism 3 also includes a driving member 34 for driving the pulley 33 to rotate. The output shaft of the driving member 34 is fixedly connected to any one of the pulleys 33, and the driving member 34 is installed on the connecting plate 30 through a mounting frame.

[0055] During specific operation, in the durability test of the power cord, the two rotating clamping parts 32 drive the two ends of the power cord to rotate, and the wire clamp mechanism 5 clamps the cable. The specific steps are: start the driving part 34, so that the driving part 34 rotates back and forth. The driving part 34 is a rotating driving part, which can be a servo motor or a stepping motor. The driving part 34 drives the corresponding pulley 33 to rotate, and the rotating pulley 33 drives another pulley 33 to rotate through the belt. The two reciprocating pulleys 33 respectively drive the two clamping parts 32 to rotate back and forth through the two rotating rods 31. The two clamping parts 32 drive the plug and the interface of the power cord to rotate back and forth, so as to realize the torsion detection of the power cord. The power cord has a function of testing the anti-bending performance of the connection between the plug and the interface of the power cord and the cable. After a period of time, the driving part 34 is stopped, and then the connection positions of the plug and the interface and the cable are observed. If there is no breakage or damage at the connection, the test is qualified and the next test is carried out. If there is breakage or damage at the connection, the power cord fails the test. In the test of the anti-bending performance of the power cord plug and the interface and the cable, the anti-bending performance of the connection position between the plug and the cable and the anti-bending performance of the connection position between the interface and the cable can be tested simultaneously in one test operation, which effectively improves the efficiency of power cord testing and reduces the operating steps of power cord testing.

[0056] See Figure 1 、 Figure 5 and Figure 7 The wire clamp mechanism 5 also includes two driving members 54 installed at the rear end of the slide plate 50 through a mounting seat, and the driving members 54 are fixedly connected to the corresponding sliding blocks 51.

[0057] During specific operation, when testing the tensile performance of the power cord, the wire clamp mechanism 5 stretches the cable. The specific steps are: start the two driving parts 3 54, the driving part 3 54 is a displacement driving part, which can be a hydraulic push rod or an electric push rod. The two driving parts 3 54 drive the two sliding blocks 51 away from each other, and the two sliding blocks 51 drive the two rotating parts 52 and the two wire clamp parts 53 away from each other. The two wire clamp parts 53 clamp the two points of the power cord and stretch the cable, and gradually increase the driving force of the driving part 3 54 to increase the tensile force on the power cord. When the tensile force reaches the maximum amount of the test, observe the condition of the cable. If the cable is not broken or damaged, the test is qualified and the next test is carried out. If the cable is broken or damaged, the power cord test fails, and then the operation of the driving part 3 54 is stopped.

[0058] See Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 7The rotating part 52 includes a connecting rod 520 rotatably connected to the front end of the sliding block 51, the wire clamping frame 530 is fixedly connected to the front end of the connecting rod 520, and the outer periphery of the connecting rod 520 is provided with a limit sleeve 521 fixedly connected to the front end of the sliding block 51. The front end of the limit sleeve 521 is provided with two limit openings 522 distributed at right angles. The sliding sleeve on the connecting rod 520 is provided with a sliding ring 523, and a limit block 524 is installed at the rear end of the sliding ring 523.

[0059] See Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 7 The rotating part 52 also includes a plurality of movable grooves 525 circumferentially opened on the annular surface of the connecting rod 520, and a movable block 526 is slidably connected in the movable groove 525. The plurality of movable blocks 526 are fixedly connected to the inner annular surface of the sliding ring 523 at the same time. Two stop blocks 527 fixedly connected to the front end of the limit sleeve 521 are symmetrically arranged at the rear of the sliding ring 523. The two stop blocks 527 are respectively located on the opposite sides of the two limit openings 522.

[0060] When the power cord is connected to the cable, the lifting mechanism 4 pulls the cable vertically downwards through the clamping mechanism 5. The specific steps are as follows: first, release the clamping of the power cord by one clamping part 53. The specific operation is to rotate the corresponding locking screw 532. The locking screw 532 drives the corresponding clamping part 531 to descend, thereby releasing the clamping of the cable. Then, the clamping state of the two clamping parts 53 is adjusted by the two rotating parts 52 in turn. The specific operation is to move the sliding ring 523. The sliding ring 523 slides in the multiple moving grooves 525 through multiple moving blocks 526 and drives the limit block 524 to separate from the corresponding limit opening 522. Then, the sliding ring 523 is rotated. The sliding ring 523 passes through multiple moving blocks 5 The cooperation between 26 and multiple movable grooves 525 drives the connecting rod 520 to rotate, and then drives the wire clamping part 53 to rotate until the rotating limit block 524 is in contact with the corresponding stop block 527. At this time, the wire clamping part 53 rotates 90 degrees, so that the opening of the end clamping frame 320 is vertically connected. Then the sliding ring 523 is pushed, and the sliding ring 523 drives the limit block 524 to plug and cooperate with the corresponding limit opening 522, and the adjusted wire clamping part 53 is re-limited. At this time, one wire clamping part 53 clamps the cable, and then the driving part 2 43 is started. The driving part 2 43 drives the lifting plate 42 to move downward. The lifting plate 42 drives the slide plate 50 to move downward. The slide plate 50 drives the rotating part 52 and the wire clamping part 53 to move through the sliding block 51. The wire clamping part 53 pulls the cable downward to make it straight (such as Figure 9As shown), on the basis of the torsion test, different pulling forces are applied to the cable by changing the force applied by the second driving member 43 (i.e., tensile test), and the durability is evaluated by observing the degree of cracking or breakage at the connection. Then, the clamping of the cable by the wire clamp 53 is released, and the second driving member 43 drives the lifting plate 42 to reset, and then another wire clamp 53 is clamped on the cable, and then the previous steps of the tensile test at the connection between the power cord interface or plug and the cable are repeated.

[0061] In addition, the connection strength of the connection between the power cord plug and the cable, and the connection between the interface and the cable can also be tested by using a testing device. The specific testing method is as follows: the power cord plug and the interface are clamped by two clamping parts 32 respectively, the two wire clamping parts 53 clamp the cable, and the driving part 2 43 continuously applies tension to the cable until the connection between the power cord plug and the cable or the connection between the interface and the cable is broken. The connection strength of the connection between the power cord plug and the cable, and the connection between the interface and the cable is evaluated by the size of the measured tension value.

[0062] It should be noted that the tension value is monitored by a tension sensor, which is provided on the wire clamping member 531. After the wire clamping member 531 clamps the cable, when the cable is pulled, the tension sensor can monitor the tension value of the cable in real time.

[0063] The durability test of power cord use, the connection strength test of cables, and the tensile strength test of power cords and cables can all be performed on one testing device, effectively solving the problem of the single testing method of existing testing equipment, increasing the diversity of testing equipment, and further improving the applicability of testing equipment.

[0064] In addition, the present invention also provides a method for detecting power line performance, which specifically includes the following steps:

[0065] S1: First, install the plugs and interfaces at both ends of the power cord on the two clamping parts 32 respectively, and then connect the cable of the power cord to the wire clamp mechanism 5.

[0066] S2: During the anti-bending test of the power cord plug, the interface and the cable connection points, the two repeatedly rotating clamping parts 32 respectively drive the plug and the interface to rotate repeatedly, and the two wire clamping mechanisms 5 pull the cable. After a period of time, the conditions of the plug, the interface and the cable connection points are observed.

[0067] S3: After the detection in step S2 is completed, if there is no problem with the cable at the plug and the interface, continue to test the cable strength. At this time, the two wire clamp mechanisms 5 horizontally clamp the middle position of the cable, start the wire clamp mechanism 5, and the wire clamp mechanism 5 performs a tensile test on the cable.

[0068] S4: After the cable tensile strength test in step S3 is completed, if there is no problem with the cable, release the clamping of the cable by one wire clamp part 53, and adjust the clamping state of the two wire clamp parts 53 by the two rotating parts 52, then move the two wire clamp parts 53 to the bottom of the two clamping parts 32 respectively, and then push the wire clamp mechanism 5 by the lifting mechanism 4. On the basis of the bending resistance test in step S2, the durability of one end of the power cord is evaluated by observing the connection between the cable and the plug or interface. Similarly, release the clamping of the cable by the working wire clamp part 53, clamp the cable by the other wire clamp part 53, and repeat the connection between the power cord and the plug or interface to evaluate the durability of the other end of the power cord.

[0069] S5: After the various tests on the power cord are completed, the power cord is removed from the testing device and the test is completed.

[0070] In the description of the embodiments of the present invention, it should be noted that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0071] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0072] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A power line performance testing device, comprising a base plate, a support frame mounted on the upper end of the base plate, characterized in that: An end clamping mechanism is provided on the support frame and is used to clamp the two ends of the power cord. The end clamping mechanism includes a connecting plate installed at the front end of the support frame. Two symmetrical rotating rods are rotatably connected to the connecting plate. The front and rear ends of the rotating rods are respectively connected to a clamping portion and a pulley. A belt is connected between the two pulleys. A lifting mechanism connected to the lower side of the connecting plate; A wire clamp mechanism is connected to the lower side of the lifting mechanism, and the wire clamp mechanism includes a slide plate connected to the lower side of the lifting mechanism, two sliding blocks are slidably connected to the slide plate, the front ends of the sliding blocks are connected to the rotating part, and the front side of the rotating part is connected to the wire clamp part; The rotating part includes a connecting rod rotatably connected to the front end of the sliding block, a limiting sleeve is provided on the outer periphery of the connecting rod and fixedly connected to the sliding block, and two limiting openings distributed at right angles are provided on the front end of the limiting sleeve. The sliding sleeve on the connecting rod is provided with a sliding ring, and a limiting block is installed at the rear end of the sliding ring; In the power cord durability test, the two rotating clamping parts first drive the two ends of the power cord to rotate, and then the lifting mechanism stretches the cable through the wire clamp mechanism; the testing equipment can test the connection strength of the connection between the power cord plug and the cable, the connection between the interface and the cable, and the tensile performance of the cable itself.

2. The power line performance testing device according to claim 1, characterized in that: The end clamping mechanism also includes a driving member 1 for driving the pulley to rotate.

3. The power line performance testing device according to claim 1, characterized in that: The lifting mechanism includes a positioning plate installed at the lower end of the connecting plate, a sliding groove is opened at the lower end of the positioning plate, a lifting plate is slidably connected in the sliding groove, the lower end of the lifting plate is fixedly connected to the slide rail plate, and a driving component 2 is installed together at the rear ends of the lifting plate and the positioning plate.

4. The power line performance testing device according to claim 1, characterized in that: The wire clamp mechanism further comprises two driving members three mounted on the rear end of the slide rail plate via a mounting seat, and the driving members three are fixedly connected to the corresponding sliding blocks.

5. The power line performance testing device according to claim 1, characterized in that: The clamping part includes an end clamping frame installed at the front end of the rotating rod and having a U-shaped structure. A partition plate is installed at the middle of the inner end of the middle section of the end clamping frame. The partition plate and the two side sections of the end clamping frame are rotated together to be connected to a threaded rod. The threaded rod is provided with two threaded teeth with opposite spiral directions, and the threaded rod is symmetrically threaded with a clamping piece.

6. The power line performance testing device according to claim 1, characterized in that: The rotating part also includes a plurality of moving grooves circumferentially opened on the annular surface of the connecting rod, and moving blocks are slidably connected in the moving grooves. The plurality of moving blocks are fixedly connected to the inner annular surface of the sliding ring at the same time.

7. The power line performance testing device according to claim 1, characterized in that: The wire clamp portion includes a wire clamping frame installed at the front end of the connecting rod and having a U-shaped structure. Two wire clamping pieces are symmetrically arranged inside the wire clamping frame. One wire clamping piece is fixedly installed on a side wall section of the wire clamping frame, and the other wire clamping piece is rotatably connected to a locking screw.

8. The power line performance testing device according to claim 7, characterized in that: The wire clamp part also includes a locking screw threadedly connected to the corresponding side wall section of the wire clamping frame. A guide rod is provided on one side of the locking screw and slides through the corresponding side wall section of the wire clamping frame. The guide rod is fixedly connected to the corresponding wire clamping piece. The wire clamping frame is rotatably connected to a roller through a connecting frame.

9. The power line performance testing device according to claim 1, characterized in that: Two stop blocks fixedly connected to the front end of the limit sleeve are symmetrically arranged at the rear of the sliding ring, and the two stop blocks are respectively located at opposite sides of the two limit openings.

10. A method for detecting power line performance, characterized in that: The power line performance detection device according to claim 1 is used to perform the process, including the following steps: S1: First, install the plug and connector at both ends of the power cord on the two clamping parts respectively, and then connect the power cord cable to the cable clamp mechanism; S2: During the power cord bending test, the two clamping parts rotate repeatedly, causing the plug and connector to rotate repeatedly. The two clamping mechanisms pull the cable. After a period of time, the connection between the plug and connector and the cable is observed. S3: After the test in step S2 is completed, if there are no problems with the cable at the plug and the interface, continue to test the cable tensile performance. At this time, the two wire clamping mechanisms horizontally clamp the middle position of the cable, and the wire clamping mechanisms are activated to test the tensile performance of the cable. S4: After the cable tensile performance test in step S3 is completed, if there is no problem with the cable, release the clamping of the cable by one wire clamp part, and adjust the clamping state of the two wire clamp parts by two rotating parts, then move the two wire clamp parts respectively to the bottom of the two clamping parts, and then push the wire clamp mechanism by the lifting mechanism. On the basis of the bending resistance test in step S2, the durability of one end of the power cord is comprehensively evaluated by observing the connection between the cable and the plug or interface. Similarly, release the clamping of the working wire clamp part on the cable, clamp the cable with the other wire clamp part, and repeat the connection between the power cable and the plug or interface to comprehensively evaluate the durability of the other end of the power cord. S5: After the various tests on the power cord are completed, the power cord is removed from the testing device and the test is completed.

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