High-voltage test lead angle adjusting device

Abstract

The present application belongs to the technical field of high-voltage test auxiliary equipment, and particularly relates to a high-voltage test wire angle adjusting device, which comprises a guide rail, a sliding block, a mounting plate, a wire clamp, a wire wheel assembly, a wire-following swing assembly, a trigger assembly and a locking mechanism. The sliding block is slidingly arranged on the guide rail, and the mounting plate is arranged on the sliding block. The high-voltage outgoing line passes through the wire clamp via the wire wheel assembly, and drives the wire-following swing assembly to swing along with the outgoing direction of the wire. When the wire-following swing assembly swings to a predetermined angle position, the trigger assembly releases the force storage limiting of the locking mechanism, so that the locking mechanism is switched from the force storage limiting state to the release locking state. In the process of releasing the locking, the locking mechanism locks the sliding block on the guide rail, and synchronously drives the wire clamp to clamp the high-voltage outgoing line. The present application can complete the angle response, trigger locking and cable clamping according to the actual outgoing direction of the high-voltage outgoing line, and improves the accuracy, repeatability and fixing stability of the wire angle adjustment in the high-voltage test.

Description

Technical Field

[0001] This invention belongs to the field of auxiliary tooling technology for high-voltage electrical equipment testing, and in particular relates to a high-voltage test conductor angle adjustment device. Background Technology

[0002] In the dielectric loss factor test of high-voltage electrical equipment such as voltage transformers (CVTs) in the line-outside field, a test voltage needs to be applied to the equipment under test (DUT) through the high-voltage lead of the testing instrument, and parameters such as the dielectric loss angle under the corresponding operating conditions need to be measured. Field tests show that the angle of the high-voltage lead relative to the DUT affects the accuracy of the test results. As the angle increases (0°–180°), the stray capacitance between the high-voltage lead and the DUT decreases, and the test results such as the dielectric loss angle become more accurate. Therefore, stable and controllable adjustment of the angle between the high-voltage lead and the DUT is of practical significance during high-voltage testing.

[0003] In current field operations, temporary auxiliary components such as insulating tape, nylon rope, or insulating rope are typically used to pull and fix the high-voltage lead-out line to adjust the angle between it and the equipment under test. In practice, operators need to use these temporary components to pull the high-voltage lead-out line to a suitable suspended position before fixing the other end of the component to a nearby steel structure support, concrete column, building component, or other temporary support. While this method can change the position of the high-voltage lead-out line to some extent, its fixed suspended position is greatly limited by on-site support conditions, and angle adjustment mainly relies on manual experience, making it difficult to quickly and accurately adjust to the predetermined angle.

[0004] Furthermore, when comparative tests are required at different angles, existing temporary binding methods typically necessitate repeated unbinding, pulling, and re-fixing, resulting in poor accuracy and positioning precision of the high-voltage lead angle and low test efficiency. Since the high-voltage lead is at a high potential during the test pressurization process, its reliable fixation is crucial for test safety. Repeated binding and pulling can also cause wear on the outer insulation layer of the high-voltage lead, increasing the risks of on-site testing.

[0005] Therefore, it is necessary to design an auxiliary device that can provide stable support and angle adjustment for high-voltage lead wires, so as to improve the accuracy, stability and on-site operation convenience of high-voltage test lead wire angle adjustment. Summary of the Invention

[0006] In view of the technical problems existing in the background art, the present invention provides a high-voltage test conductor angle adjustment device.

[0007] To achieve the above objectives, the technical solution provided by the present invention is as follows: A high-voltage test lead angle adjustment device includes a guide rail, a base fixedly connected to the bottom end of the guide rail, a slider slidably connected to the guide rail, a mounting plate on the slider, a wire clamp and a lead wheel assembly on the mounting plate, the wire clamp including a fixed clamping part and a sliding clamping part that can move relative to the fixed clamping part, and the high-voltage lead wire can pass through the wire clamp via the lead wheel assembly. The mounting plate is also equipped with a wire-following swing component and a trigger component. The wire-following swing component can swing with the outgoing direction of the high voltage lead wire and cooperate with the trigger component when it swings to a predetermined angle position. The slider is equipped with a locking mechanism, which is linked to the sliding clamping part. The triggering component is used to trigger the locking mechanism to lock the slider to the guide rail and drive the sliding clamping part to clamp the high voltage lead wire.

[0008] Optionally, the wire-following swing assembly includes a fixed shaft connected to the mounting plate, an indexing positioning seat on the fixed shaft, an indexing plate rotatably connected to the outer side of the indexing positioning seat, a wire-following swing arm fixedly connected to the outer wall of the indexing plate, and a pair of first guide wheels at the end of the wire-following swing arm away from the indexing plate, through which the high-voltage lead wire passes.

[0009] Optionally, the indexing positioning seat is provided with several limiting countersunk holes, and each limiting countersunk hole is provided with an indexing spring and a ball. One end of the indexing spring abuts against the bottom of the limiting countersunk hole, and the other end abuts against the ball. The inner wall of the indexing plate is provided with several indexing grooves corresponding to the limiting countersunk holes at intervals along the circumference. The ball can be inserted into the indexing groove under the action of the indexing spring.

[0010] Optionally, the trigger assembly includes a trigger slide, with an upper guide rod and a lower guide rod fixedly connected to its upper and lower ends respectively. Both the upper and lower guide rods are vertically slidably mounted on the mounting plate via guide seats. A trigger reset spring is sleeved on the outer side of the upper guide rod, with one end of the trigger reset spring abutting against the guide seat and the other end abutting against the trigger slide. A lifting roller is provided at the bottom end of the lower guide rod. A trigger rod passes through the trigger slide and is laterally slidably mounted on the mounting plate via a trigger rod guide seat, cooperating with the locking mechanism.

[0011] Optionally, the triggering component also includes a drive cam fixedly connected to the indexing plate. The outer periphery of the drive cam is provided with multiple drive protrusions spaced apart, and an avoidance recess is formed between two adjacent drive protrusions. The central angle between two adjacent drive protrusions is 30°. When the lifting roller is located in the clearance recess, the trigger slide is in the initial position. When the driving protrusion pushes against the lifting roller, the trigger slide moves upward and drives the trigger rod to switch the locking mechanism to the release state. The outer wall of the trigger rod is fixedly connected to the limit plate, and the outer wall of the trigger rod is also fitted with a return spring. One end of the return spring abuts against the limit plate, and the other end of the return spring abuts against the trigger slide.

[0012] Optionally, both inner walls of the trigger slide are provided with irregularly shaped drive grooves, and both sides of the trigger rod are provided with guide rollers that extend into the irregularly shaped drive grooves. The irregularly shaped drive grooves include a vertical return groove section, a drive inclined groove section and a horizontal reset groove section connected in sequence. The guide rollers can move along the irregularly shaped drive grooves to drive the trigger rod to switch the locking mechanism between the release state and the locking state.

[0013] Optionally, the inner wall of the guide rail is provided with a friction groove, and the locking mechanism includes a locking box fixedly connected to the slider. The locking box is provided with a pair of locking blocks, and a wedge block is provided between the pair of locking blocks. The locking blocks can move to both sides under the drive of the wedge block and abut against the friction groove to form a lock.

[0014] Optionally, the top of the locking box has a guide hole, the top of the wedge block is fixedly connected to a guide block, the outer wall of the guide block is fixedly connected to a release block, and the release block cooperates with the trigger component; the inner wall of the locking box is fixedly connected to a slide rod, and a pair of locking blocks are slidably connected to the slide rod through mounting seats. Each mounting seat and the locking box is provided with an unlocking spring sleeved on the slide rod.

[0015] Optionally, the sliding clamping part is slidably connected to the slider. A connecting plate is fixedly connected to the bottom end of the sliding clamping part. One end of the connecting plate is fixedly connected to the wedge block through a connecting rod, and the other end is fixedly connected to a pull rod. The pull rod passes through the slider and is slidably connected to the slider. A locking spring is sleeved on the outer wall of the pull rod. One end of the locking spring abuts against the connecting plate, and the other end abuts against the inner wall of the slider, so that when the wedge block locks the guide rail, it synchronously drives the sliding clamping part to clamp the high voltage lead wire.

[0016] Optionally, the conductor wheel assembly includes a pair of second guide wheels and a pair of third guide wheels respectively disposed on both sides of the wire clamp, and the high voltage lead wire passes through the second guide wheels, the wire clamp and the third guide wheels in sequence; The top of the slider is connected to a first traction line, the top of the guide rail is fixedly connected to a fixed pulley, and the bottom of both sides of the guide rail are fixedly connected to locking rings. The first traction line passes around the fixed pulley and connects to the locking rings. The end of the pull rod is connected to a second traction line, which is connected to another locking ring.

[0017] The present invention has the following advantages and beneficial effects: This invention addresses the problems of relying on manual experience, insufficient angle positioning accuracy, and difficulty in maintaining stability after adjustment when adjusting the angle of high-voltage leads during high-voltage testing. It proposes an automatic positioning and adjustment scheme based on lead direction feedback. This scheme uses the lead direction itself as the basis for angle detection, enabling the adjustment process to respond to the actual cable condition. This avoids angle deviations caused by factors such as installation location and human judgment errors in traditional methods, thus improving the consistency of test angle settings.

[0018] This invention links the detection of the high-voltage lead wire angle, the trigger conversion, and the locking clamping, enabling the high-voltage lead wire to automatically maintain its position and secure the cable once the angle reaches the set position. This avoids the problems of repeatedly adjusting the binding position and separately fixing the cable and support structure required in existing technologies. This linkage method makes the detection, positioning, and holding during the angle adjustment process a continuous action, improving the reliability of angle control during testing.

[0019] This invention employs a locking control method with energy storage and release characteristics, which allows the device to remain movable during adjustment and quickly switch to a stable locking state after reaching the target angle. Simultaneously, it restricts the movement of the slider and the position change of the high-voltage lead wire, thereby reducing angle drift caused by changes in cable stress, loose support, or human operation. This improves the stability during long-term testing and enhances the adaptability and safety reliability of the device in high-voltage testing environments. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the high-voltage test conductor angle adjustment device in this invention; Figure 2 This is a partial view of the high-voltage test conductor angle adjustment device in this invention. Figure 1 ; Figure 3 In this invention Figure 2 The front view; Figure 4 for Figure 3 cross section Figure 1 ; Figure 5 for Figure 3 cross section Figure 2 ; Figure 6 This is an exploded view of the triggering component and locking mechanism of the present invention; Figure 7 This is a partial view of the high-voltage test conductor angle adjustment device in this invention. Figure 2 ; Figure 8 This is a schematic diagram of the measurement of the high-voltage test conductor angle adjustment device in this invention.

[0021] Reference numerals: 1. Guide rail; 11. Base; 12. Friction groove; 2. Slider; 21. First traction line; 22. Second traction line; 3. Mounting plate; 4. Wire clamp; 41. Fixed clamping part; 42. Sliding clamping part; 421. Connecting plate; 5. Wire guide wheel assembly; 51. Second guide wheel; 52. Third guide wheel; 6. Wire-following swing assembly; 61. Fixed shaft; 62. Indexing positioning seat; 621. Limiting countersunk hole; 622. Indexing spring; 623. Ball bearing; 63. Indexing plate; 631. Indexing groove; 64. Wire-following swing arm; 65. First guide wheel; 7. Trigger assembly; 71. Trigger slide; 710. Guide roller; 711. Upper guide rod; 712. Lower... 72. Guide rod; 73. Drive cam; 74. Drive protrusion; 75. Avoidance recess; 76. Guide seat; 77. Trigger reset spring; 78. Lifting roller; 79. Trigger rod; 70. Limit plate; 71. Return spring; 72. Trigger rod guide seat; 73. Irregular drive groove; 74. Vertical return groove section; 75. Drive inclined groove section; 76. Horizontal reset groove section; 8. Locking mechanism; 87. Locking box; 88. Locking block; 89. Wedge block; 80. Guide hole; 81. Guide block; 82. Release block; 83. Slide rod; 84. Unlocking spring; 85. Connecting rod; 86. Pull rod; 87. Locking spring; 88. Fixed pulley; 89. Locking ring. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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 some embodiments of the present invention, but not all embodiments.

[0023] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0024] Example like Figures 1 to 8 As shown, a high-voltage test lead angle adjustment device is used to adjust and fix the outgoing angle of the high-voltage lead during high-voltage testing. The device includes a guide rail 1, with a base 11 fixedly connected to the bottom end of the guide rail 1. The base 11 supports the guide rail 1 and improves its stability. A slider 2 is slidably connected to the guide rail 1, and the slider 2 can move up and down along the guide rail 1.

[0025] The slider 2 is equipped with a mounting plate 3, which is used to install structures for guiding, clamping, and angle detection of the high-voltage lead wire. The mounting plate 3 is equipped with a wire clamp 4 and a guide wheel assembly 5. The wire clamp 4 includes a fixed clamping part 41 and a sliding clamping part 42, which can move relative to the fixed clamping part 41. The high-voltage lead wire can pass through the wire clamp 4 via the guide wheel assembly 5. When the sliding clamping part 42 is not clamped, the high-voltage lead wire can slide relative to the wire clamp 4; when the sliding clamping part 42 moves towards the fixed clamping part 41, the high-voltage lead wire is clamped and fixed.

[0026] The mounting plate 3 is also equipped with a wire-following swing assembly 6 and a trigger assembly 7. The wire-following swing assembly 6 can swing with the outgoing direction of the high-voltage lead wire. When the outgoing direction of the high-voltage lead wire changes, the wire-following swing assembly 6 swings synchronously and cooperates with the trigger assembly 7 when it swings to a predetermined angle position. The slider 2 is equipped with a locking mechanism 8, which is linked with the sliding clamping part 42. After the trigger assembly 7 triggers the locking mechanism 8 to act, the locking mechanism 8 can lock the slider 2 to the guide rail 1 and drive the sliding clamping part 42 to clamp the high-voltage lead wire.

[0027] Furthermore, such as Figures 1-3 and Figure 6 As shown, the wire-following swing assembly 6 includes a fixed shaft 61 connected to the mounting plate 3. An indexing positioning seat 62 is mounted on the fixed shaft 61, and an indexing disk 63 is rotatably connected to the outer side of the indexing positioning seat 62. The indexing disk 63 can rotate relative to the indexing positioning seat 62. A wire-following swing arm 64 is fixedly connected to the outer wall of the indexing disk 63. A pair of first guide wheels 65 are provided at the end of the wire-following swing arm 64 away from the indexing disk 63, and the high-voltage lead wire passes between the pair of first guide wheels 65. Therefore, when the exit direction of the high-voltage lead wire changes, the high-voltage lead wire drives the wire-following swing arm 64 to swing, and the wire-following swing arm 64 drives the indexing disk 63 to rotate synchronously, thus enabling the wire-following swing assembly 6 to reflect the actual exit angle of the high-voltage lead wire.

[0028] Furthermore, the indexing positioning seat 62 has several limiting countersunk holes 621, each containing an indexing spring 622 and a ball bearing 623. One end of the indexing spring 622 abuts against the bottom of the limiting countersunk hole 621, and the other end abuts against the ball bearing 623. The inner wall of the indexing disk 63 has several indexing grooves 631 spaced circumferentially, corresponding to the limiting countersunk holes 621. During the rotation of the indexing disk 63, the ball bearing 623 can be engaged into the corresponding indexing groove 631 under the elastic force of the indexing spring 622, thereby achieving angular indexing positioning of the indexing disk 63. In this embodiment, the multiple indexing grooves 631 can be arranged at predetermined angular intervals, for example, adjacent indexing grooves 631 are spaced at 30° intervals.

[0029] Furthermore, such as Figures 3-6As shown, the trigger assembly 7 includes a trigger slide 71, with an upper guide rod 711 and a lower guide rod 712 fixedly connected to its upper and lower ends, respectively. Both the upper guide rod 711 and the lower guide rod 712 are vertically slidably mounted on the mounting plate 3 via guide seats 74, allowing the trigger slide 71 to move vertically. A trigger reset spring 75 is sleeved on the outer side of the upper guide rod 711, with one end abutting against the guide seat 74 and the other end abutting against the trigger slide 71, providing a reset tendency for the trigger slide 71. A lifting roller 76 is provided at the bottom end of the lower guide rod 712. A trigger rod 77 passes through the trigger slide 71, and the trigger rod 77 is laterally slidably mounted on the mounting plate 3 via a trigger rod guide seat 78, cooperating with the locking mechanism 8.

[0030] Furthermore, the trigger assembly 7 also includes a drive cam 72 fixedly connected to the indexing plate 63, which can rotate synchronously with the indexing plate 63. The outer periphery of the drive cam 72 is provided with multiple drive protrusions 721 spaced apart, with a clearance recess 722 formed between adjacent drive protrusions 721, and the central angle between adjacent drive protrusions 721 is 30°. When the lifting roller 76 is located within the clearance recess 722, the trigger slide 71 is in its initial position; when the drive protrusions 721 push against the lifting roller 76, the trigger slide 71 moves upward, driving the trigger rod 77 to switch the locking mechanism 8 to the release state. A limit plate 771 is fixedly connected to the outer wall of the trigger rod 77, and a return spring 772 is also sleeved on the outer wall of the trigger rod 77. One end of the return spring 772 abuts against the limit plate 771, and the other end abuts against the trigger slide 71, allowing the trigger rod 77 to reset after completing the lateral movement.

[0031] Furthermore, such as Figure 5 As shown, both inner walls of the trigger slide 71 are provided with irregularly shaped drive grooves 79, and both sides of the trigger rod 77 are provided with guide rollers 710 extending into the irregularly shaped drive grooves 79. The irregularly shaped drive groove 79 includes a vertical return groove section 791, a drive inclined groove section 792, and a lateral reset groove section 793 connected in sequence. When the trigger slide 71 moves vertically, the guide rollers 710 move along the irregularly shaped drive groove 79, causing the trigger rod 77 to move laterally, thereby driving the locking mechanism 8 to switch between the release state and the storage state. Among them, the drive inclined groove section 792 is used to convert the vertical movement of the trigger slide 71 into the lateral movement of the trigger rod 77, the vertical return groove section 791 is used to guide the rollers 710 back to their initial position, and the lateral reset groove section 793 is used to cooperate with the lateral reset of the trigger rod 77.

[0032] Furthermore, the inner wall of the guide rail 1 is provided with a friction groove 12, and the locking mechanism 8 includes a locking box 81 fixedly connected to the slider 2. The locking box 81 contains a pair of locking blocks 82, and a wedge block 83 is provided between the pair of locking blocks 82. The wedge block 83 can move within the locking box 81 and pushes the pair of locking blocks 82 to both sides through its wedge-shaped surface, causing the locking blocks 82 to abut against the friction groove 12 on the inner wall of the guide rail 1 to form a lock. Thus, the slider 2 can be locked onto the guide rail 1 through the abutment of the locking blocks 82 against the friction groove 12.

[0033] Furthermore, a guide hole 84 is provided at the top of the locking box 81, and a guide block 85 is fixedly connected to the top of the wedge block 83. The guide block 85 passes through the guide hole 84 to guide the movement of the wedge block 83. A release block 86 is fixedly connected to the outer wall of the guide block 85. The release block 86 cooperates with the trigger rod 77. When the trigger rod 77 moves laterally and disengages from the release block 86, it triggers self-locking. A slide rod 87 is fixedly connected to the inner wall of the locking box 81. A pair of locking blocks 82 are slidably connected to the slide rod 87 through mounting seats. Each mounting seat and the locking box 81 are provided with an unlocking spring 88 sleeved on the slide rod 87. When the wedge block 83 releases its wedging effect on the locking block 82, the unlocking spring 88 can push the locking block 82 to reset, causing the locking block 82 to disengage or reduce its contact with the friction groove 12.

[0034] Furthermore, the sliding clamping part 42 is slidably connected to the slider 2, and a connecting plate 421 is fixedly connected to the bottom end of the sliding clamping part 42. One end of the connecting plate 421 is fixedly connected to the wedge block 83 via a connecting rod 89, and the other end is fixedly connected to a pull rod 810. The pull rod 810 passes through the slider 2 and is slidably connected to the slider 2. A locking spring 811 is sleeved on the outer wall of the pull rod 810. One end of the locking spring 811 abuts against the connecting plate 421, and the other end abuts against the inner wall of the slider 2. When the locking is released, the elastic potential energy stored in the locking spring 811 pushes the connecting plate 421, the connecting rod 89, and the wedge block 83 to move in the locking direction. On the one hand, this pushes the locking block 82 to press against the friction groove 12 to lock the slider 2 onto the guide rail 1. On the other hand, the connecting plate 421 drives the sliding clamping part 42 to move toward the fixed clamping part 41, thereby simultaneously clamping the high-voltage lead wire. Thus, the position locking of the slider 2 and the clamping and fixing of the high-voltage lead wire can be completed simultaneously.

[0035] Furthermore, such as Figure 7 As shown, the conductor wheel assembly 5 includes a pair of second guide wheels 51 and a pair of third guide wheels 52 respectively disposed on both sides of the clamp 4. The high-voltage lead wire passes through the second guide wheels 51, the clamp 4, and the third guide wheels 52 in sequence. The second guide wheels 51 and the third guide wheels 52 are used to guide the high-voltage lead wire, keeping the lead wire parallel to the axis of the clamp 4, enabling the high-voltage lead wire to slide smoothly during angle adjustment, and reducing the risk of friction and wear on the outer insulation layer of the high-voltage lead wire.

[0036] The top of slider 2 is connected to a first traction line 21, and the top of guide rail 1 is fixedly connected to a fixed pulley 13. Locking rings 14 are fixedly connected to the bottom of both sides of guide rail 1. The first traction line 21 passes over the fixed pulley 13 and connects to the locking ring 14. Pulling the first traction line 21 can move slider 2 along guide rail 1, and the locking ring 14 can temporarily fix the first traction line 21. The end of pull rod 810 is connected to a second traction line 22, which is connected to another locking ring 14. Pulling pull rod 810 via the second traction line 22 causes locking spring 811 to compress and store energy again, switching locking mechanism 8 from the released state to the stored state. Simultaneously, the sliding clamping part 42 returns to its initial position, releasing the clamp on the lead wire, facilitating the next angle adjustment of slider 2.

[0037] In this embodiment, the high-voltage lead wire can also be used in conjunction with a tension compensation component. This component is used to retract or tighten the high-voltage lead wire during the movement of the slider 2, ensuring the high-voltage lead wire maintains appropriate tension. The tension compensation component can be an existing cable reel with automatic retraction and tensioning functions, or it can be a counterweight tensioning component, a spring tensioning component, an elastic rope tensioning component, or a manual tensioning method. The aforementioned tension compensation component is only used to compensate for the length change of the high-voltage lead wire at different angular positions; its specific structure can utilize existing technology and will not be described in detail here.

[0038] Meanwhile, since this device is used in high-voltage testing scenarios, the clamping surfaces of the first guide wheel 65, the second guide wheel 51, the third guide wheel 52, the fixed clamping part 41, and the sliding clamping part 42, which are in direct contact with the high-voltage lead wire, are all made of insulating material, or an insulating contact layer is provided on the side that contacts the high-voltage lead wire. An insulating isolation part can be provided between the metal transmission component inside the slider 2 and the wire-passing area of ​​the high-voltage lead wire to avoid the high-voltage lead wire forming a direct conductive path with the metal transmission component.

[0039] like Figures 1 to 8As shown, during use, the high-voltage lead wire is first passed through the second guide wheel 51, the wire clamp 4, the third guide wheel 52, and the first guide wheel 65 in sequence, and then connected to the device under test. Before adjustment, the operator pulls the pull rod 810 through the second traction line 22, causing the pull rod 810 to drive the sliding clamping part 42, the connecting plate 421, the connecting rod 89, the wedge block 83, and the release block 86 to move downward, thereby compressing the locking spring 811. When the release block 86 moves to the limit position corresponding to the trigger rod 77, the trigger rod 77 pops out under the action of the return spring 772 and forms a limit engagement with the release block 86, keeping the locking mechanism 8 in the stored limit state; at this time, the locking block 82 releases its pressure on the friction groove 12, the sliding clamping part 42 releases its clamp on the high-voltage lead wire, the slider 2 can move along the guide rail 1, and the high-voltage lead wire can slide relative to the wire clamp 4 and the guide wheel assembly 5.

[0040] Subsequently, the operator pulls the first traction line 21, causing the slider 2 to move along the guide rail 1. As the slider 2 moves, the direction of the high-voltage lead changes, and the follow-line swing arm 64 swings under the influence of the high-voltage lead, causing the indexing plate 63 and the drive cam 72 to rotate synchronously. When the follow-line swing arm 64 rotates to the first predetermined angle position, for example, the position corresponding to a 30° angle between the high-voltage lead and the device under test, the ball bearing 623 engages in the corresponding indexing groove 631, and the drive protrusion 721 on the drive cam 72 pushes against the lifting roller 76, causing the trigger slide 71 to move upward, and the trigger reset spring 75 is compressed and stored.

[0041] During the upward movement of the trigger slide 71, the guide roller 710 moves along the drive inclined groove section 792, driving the trigger rod 77 to move laterally to the right, causing the trigger rod 77 to disengage from the limiting position of the release block 86. After the trigger rod 77 disengages from the release block 86, the locking mechanism 8 switches from the power storage limiting state to the release locking state. The locking spring 811 releases its elastic potential energy and pushes the wedge block 83 to move in the locking direction through the connecting plate 421 and the connecting rod 89. On the one hand, the wedge block 83 pushes the locking block 82 to move to both sides and presses against the friction groove 12, locking the slider 2 to the guide rail 1; on the other hand, it drives the sliding clamping part 42 to move towards the fixed clamping part 41 through the connecting plate 421, so that the wire clamp 4 simultaneously clamps the high-voltage lead wire. At this time, the position of the slider 2 and the high-voltage lead wire are fixed, and the leakage current test at the corresponding angle can be performed.

[0042] During the lateral movement of the trigger rod 77 to the right, the limiting plate 771 compresses the return spring 772. When the guide roller 710 moves to the bottom of the drive sloping groove section 792, the return spring 772 pushes the trigger rod 77 to move in the reset direction. Since the release block 86 has already moved in the locking direction with the wedge block 83, the trigger end of the trigger rod 77 cannot immediately re-enter the limiting position, but instead abuts against the outer wall of the release block 86. In this state, the trigger rod 77 maintains a reset pre-compression tendency so that the limiting engagement can be formed again when the release block 86 returns to the storage position next time.

[0043] After completing the test at this angle, the pressurization was stopped and the high-voltage lead wire and the device under test were discharged. Subsequently, the operator pulled the second traction line 22 again, causing the pull rod 810 to move the sliding clamping part 42, connecting plate 421, connecting rod 89, wedge block 83 and release block 86 downward. The locking spring 811 was compressed again, and the locking block 82 disengaged or reduced its contact with the friction groove 12 under the action of the unlocking spring 88. The sliding clamping part 42 released its clamp on the high-voltage lead wire. When the release block 86 moved downward to the limit position corresponding to the trigger rod 77, the trigger rod 77 popped out under the action of the return spring 772 and formed a limit engagement with the release block 86, thereby keeping the locking mechanism 8 in the stored limit state again, and the slider 2 could move along the guide rail 1 again.

[0044] At this time, the guide roller 710 is located at the bottom of the vertical return groove section 791, the trigger slide 71 is still in the higher position after being lifted, and the trigger reset spring 75 is in a compressed state. When the operator continues to pull the first traction line 21 to move the slider 2, and the following arm 64 drives the indexing plate 63 and the drive cam 72 to continue rotating, the lifting roller 76 gradually enters the adjacent clearance recess 722, the trigger reset spring 75 releases its elastic potential energy and pushes the trigger slide 71 downward. During the downward movement of the trigger slide 71, the guide roller 710 moves relative to the vertical return groove section 791 to the top position of the drive inclined groove section 792, so that the trigger assembly 7 returns to the ready-to-trigger state.

[0045] Afterwards, the operator continues to pull the first traction line 21, causing the slider 2 to continue moving, and the high-voltage lead wire drives the accompanying swing arm 64 to continue rotating. When the accompanying swing arm 64 rotates to the next predetermined angle position, for example, corresponding to the 60° test angle position, the indexing plate 63 completes the indexing positioning again, and the drive cam 72 drives the trigger rod 77 to disengage from the release block 86 through the trigger component 7, so that the locking mechanism 8 switches from the power storage limit state to the release locking state, thereby locking the slider 2 to the guide rail 1 again and clamping the high-voltage lead wire simultaneously. When conducting leakage current tests at angle positions such as 90°, 120°, and 150°, the above adjustment, release locking, testing, voltage discharge, and reset operations can be repeated in sequence.

[0046] The above are merely preferred embodiments of the present invention and are not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A high-voltage test conductor angle adjustment device, characterized in that: Includes a guide rail (1), the bottom end of which is fixedly connected to a base (11), a slider (2) is slidably connected to the guide rail (1), a mounting plate (3) is provided on the slider (2), a wire clamp (4) and a wire wheel assembly (5) are provided on the mounting plate (3), the wire clamp (4) includes a fixed clamping part (41) and a sliding clamping part (42) that can move relative to the fixed clamping part (41), and the high voltage lead wire can pass through the wire clamp (4) via the wire wheel assembly (5); The mounting plate (3) is also provided with a line-following swing assembly (6) and a trigger assembly (7). The line-following swing assembly (6) can swing with the outgoing direction of the high voltage lead wire and cooperate with the trigger assembly (7) when it swings to a predetermined angle position. The slider (2) is provided with a locking mechanism (8), which is linked with the sliding clamping part (42). The triggering component (7) is used to trigger the locking mechanism (8) to lock the slider (2) to the guide rail (1) and drive the sliding clamping part (42) to clamp the high voltage lead wire.

2. The high-voltage test conductor angle adjustment device according to claim 1, characterized in that: The wire-following swing assembly (6) includes a fixed shaft (61) connected to the mounting plate (3). The fixed shaft (61) is provided with an indexing positioning seat (62). An indexing plate (63) is rotatably connected to the outer side of the indexing positioning seat (62). A wire-following swing arm (64) is fixedly connected to the outer wall of the indexing plate (63). A pair of first guide wheels (65) are provided at one end of the wire-following swing arm (64) away from the indexing plate (63). The high-voltage lead wire passes between the pair of first guide wheels (65).

3. The high-voltage test conductor angle adjustment device according to claim 2, characterized in that: The indexing positioning seat (62) is provided with a plurality of limiting countersunk holes (621). Each of the limiting countersunk holes (621) is provided with an indexing spring (622) and a ball (623). One end of the indexing spring (622) abuts against the bottom of the limiting countersunk hole (621), and the other end abuts against the ball (623). The inner wall of the indexing plate (63) is provided with a plurality of indexing grooves (631) corresponding to the limiting countersunk holes (621) at circumferential intervals. The ball (623) can be inserted into the indexing groove (631) under the action of the indexing spring (622).

4. The high-voltage test conductor angle adjustment device according to claim 2, characterized in that: The trigger assembly (7) includes a trigger slide (71). The upper and lower ends of the trigger slide (71) are fixedly connected to an upper guide rod (711) and a lower guide rod (712). The upper guide rod (711) and the lower guide rod (712) are both vertically slidably mounted on the mounting plate (3) through a guide seat (74). A trigger reset spring (75) is sleeved on the outer side of the upper guide rod (711). One end of the trigger reset spring (75) abuts against the guide seat (74), and the other end abuts against the trigger slide (71). A lifting roller (76) is provided at the bottom end of the lower guide rod (712). A trigger rod (77) is inserted inside the trigger slide (71). The trigger rod (77) is slidably mounted on the mounting plate (3) through a trigger rod guide seat (78) and cooperates with the locking mechanism (8).

5. The high-voltage test conductor angle adjustment device according to claim 4, characterized in that: The triggering component (7) also includes a drive cam (72) fixedly connected to the indexing plate (63). The outer periphery of the drive cam (72) is provided with a plurality of drive protrusions (721) spaced apart. An avoidance recess (722) is formed between two adjacent drive protrusions (721). The central angle between two adjacent drive protrusions (721) is 30°. When the lifting roller (76) is located in the avoidance recess (722), the trigger slide (71) is in the initial position. When the driving protrusion (721) pushes against the lifting roller (76), the trigger slide (71) moves upward and drives the trigger rod (77) to drive the locking mechanism (8) to switch to the release state. The outer wall of the trigger rod (77) is fixedly connected to the limit plate (771). The outer wall of the trigger rod (77) is also sleeved with a return spring (772). One end of the return spring (772) abuts against the limit plate (771), and the other end of the return spring (772) abuts against the trigger slide (71).

6. The high-voltage test conductor angle adjustment device according to claim 5, characterized in that: The trigger slide (71) has irregularly shaped drive grooves (79) on both inner walls. The trigger rod (77) has guide rollers (710) on both sides that extend into the irregularly shaped drive grooves (79). The irregularly shaped drive grooves (79) include a vertical return groove section (791), a drive inclined groove section (792), and a horizontal reset groove section (793) connected in sequence. The guide rollers (710) can move along the irregularly shaped drive grooves (79) to drive the trigger rod (77) to switch the locking mechanism (8) between the release state and the locking state.

7. The high-voltage test conductor angle adjustment device according to claim 1, characterized in that: The inner wall of the guide rail (1) is provided with a friction groove (12). The locking mechanism (8) includes a locking box (81) fixedly connected to the slider (2). The locking box (81) is provided with a pair of locking blocks (82). A wedge block (83) is provided between the pair of locking blocks (82). The locking blocks (82) can move to both sides under the drive of the wedge block (83) and abut against the friction groove (12) to form a lock.

8. The high-voltage test conductor angle adjustment device according to claim 7, characterized in that: The top of the locking box (81) is provided with a guide hole (84), the top of the wedge block (83) is fixedly connected with a guide block (85), the outer wall of the guide block (85) is fixedly connected with a release block (86), and the release block (86) cooperates with the trigger component (7); the inner wall of the locking box (81) is fixedly connected with a slide rod (87), and a pair of locking blocks (82) are slidably connected to the slide rod (87) through mounting seats. Each mounting seat and the locking box (81) is provided with an unlocking spring (88) sleeved on the slide rod (87).

9. The high-voltage test conductor angle adjustment device according to claim 7, characterized in that: The sliding clamping part (42) is slidably connected to the slider (2). The bottom end of the sliding clamping part (42) is fixedly connected to a connecting plate (421). One end of the connecting plate (421) is fixedly connected to the wedge block (83) through a connecting rod (89), and the other end is fixedly connected to a pull rod (810). The pull rod (810) passes through the slider (2) and is slidably connected to the slider (2). A locking spring (811) is sleeved on the outer wall of the pull rod (810). One end of the locking spring (811) abuts against the connecting plate (421), and the other end abuts against the inner wall of the slider (2), so that when the wedge block (83) locks the guide rail (1), it synchronously drives the sliding clamping part (42) to clamp the high voltage lead wire.

10. The high-voltage test conductor angle adjustment device according to claim 9, characterized in that: The conductor wheel assembly (5) includes a pair of second guide wheels (51) and a pair of third guide wheels (52) respectively disposed on both sides of the wire clamp (4). The high voltage lead wire passes through the second guide wheel (51), the wire clamp (4) and the third guide wheel (52) in sequence. The top of the slider (2) is connected to a first traction line (21), the top of the guide rail (1) is fixedly connected to a fixed pulley (13), and the bottom of both sides of the guide rail (1) is fixedly connected to a locking ring (14). The first traction line (21) passes around the fixed pulley (13) and connects to the locking ring (14). The end of the pull rod (810) is connected to a second traction line (22), and the second traction line (22) is connected to another locking ring (14).

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