An electroscope with automatic lock for electric pole

Abstract

The application discloses a kind of electrically operated poleless telescopic insulating rod's electroscope with automatic locking, it is related to electroscope technical field, including shell and electroscope body, drive mechanism and self-locking mechanism are arranged on the shell, the drive mechanism includes micro DC servo motor, the output shaft of micro DC servo motor is fixedly connected with reduction gear set.The electrically operated poleless telescopic insulating rod's electroscope with automatic locking, by micro DC servo motor is driven screw thread column rotation by reduction gear set, by screw thread pair step-by-step drive each level insulating rod realizes zero to maximum stroke poleless telescopic, hall stroke sensor real-time feedback position to single-chip microcomputer control mainboard, cut off electromagnetic block power supply after reaching position, reset spring pushes lock pin pop-up insertion slot complete synchronous locking, electromagnetic block is powered when suction slider lock pin retraction unlock, only need to press the button on the shell in whole process to complete the closed loop operation of unlocking, telescopic, to position, self-locking, need not manual step-by-step operation.

Description

Technical Field

[0001] This invention relates to the field of electroscopes, and in particular to an electroscope with an automatically locking electrically operated stepless telescopic insulating rod. Background Technology

[0002] An electric detector is a specialized safety testing tool used to detect whether electrical equipment or lines are carrying working voltage. Its core function is to verify whether the object being tested is energized, and it can issue clear warnings to operators through sound, light, and other signals.

[0003] In high-voltage voltage testing operations in power systems, traditional voltage detectors typically use a manually operated multi-section snap-lock telescopic structure for their insulating rods, which has the following technical drawbacks: First, the length adjustment can only be fixed at a preset position, making it impossible to achieve stepless continuous adjustment. This makes it difficult to adapt to the precise requirements of different voltage levels and safety distances under complex terrain. Furthermore, when working at heights, operators must use both hands to unlock, extend, and lock each section of the rod sequentially, a cumbersome process that is susceptible to slippage due to strong winds. This makes single-person operation difficult and burdensome. Second, the mechanical snap-locks are prone to wear and jamming after long-term use, and may loosen under high-altitude vibrations or accidental contact. This results in poor locking reliability, affecting the stability and safety of voltage testing operations. Moreover, operators must simultaneously hold the rod, operate the snap-locks, and observe the voltage testing signals, which can lead to distraction and potential safety accidents. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: an electroscope with an automatically locking electrically operated stepless telescopic insulating rod, comprising a housing and an electroscope body, wherein the housing is provided with a driving mechanism and a self-locking mechanism;

[0005] The drive mechanism includes a miniature DC servo motor. The output shaft of the miniature DC servo motor is fixedly connected to a reduction gear set. The inside of the housing is rotatably connected to a threaded column fixedly connected to the output end of the reduction gear set. The outer side of the threaded column is threadedly connected to a first insulating rod. The inner side of the first insulating rod is rotatably connected to a first threaded cylinder. The outer side of the first threaded cylinder is threadedly connected to a second insulating rod. The inner side of the second insulating rod is rotatably connected to a second threaded cylinder. The outer side of the second threaded cylinder is threadedly connected to a third insulating rod.

[0006] Preferably, the miniature DC servo motor is fixedly connected inside the housing, the reduction gear set consists of a gear set and a protective shell, the protective shell is fixedly connected to the inner wall of the housing, and the input end and output end of the gear set are fixedly connected to the miniature DC servo motor and the threaded column, respectively.

[0007] Preferably, the inner wall of the outer shell is provided with a first limiting groove that matches the movement trajectory of the first insulating rod, the inner wall of the first insulating rod is provided with a second limiting groove that matches the movement trajectory of the second insulating rod, and the inner wall of the second insulating rod is provided with a third limiting groove that matches the movement trajectory of the third insulating rod.

[0008] Preferably, the threaded post passes through the first insulating rod and is threadedly connected to the inner wall of the first threaded cylinder, the first threaded cylinder passes through the second insulating rod and is threadedly connected to the inner wall of the second threaded cylinder, and insulating sealing rings are fixedly connected to the outer sides of the first insulating rod, the second insulating rod, and the third insulating rod.

[0009] Preferably, the self-locking mechanism includes a mounting frame, a slider is slidably connected inside the mounting frame, a locking pin is fixedly connected to the outside of the slider, an electromagnetic block and a return spring are fixedly connected to both the side of the slider away from the locking pin and the inner wall of the mounting frame, and a Hall effect travel sensor is fixedly connected inside the housing.

[0010] Preferably, there are three mounting frames, which are respectively fixedly connected to the outer side of the outer shell, the first insulating rod, and the second insulating rod. The outer side of the first insulating rod, the second insulating rod, and the third insulating rod are provided with no less than five slots that are evenly distributed. The slots are adapted to the locking pins.

[0011] Preferably, the housing is equipped with a control and power supply mechanism, including a microcontroller control motherboard, and a rechargeable lithium battery pack is fixedly connected inside the housing.

[0012] Preferably, the microcontroller control motherboard is fixedly connected inside the housing. The microcontroller control motherboard establishes electrical and signal links with the micro DC servo motor, the rechargeable lithium battery pack, and the Hall effect travel sensor through hard wire electrical connections. The rechargeable lithium battery pack is equipped with overcharge, over-discharge, and short-circuit protection circuits and has a Type-C charging port extending to the outside of the housing at the bottom.

[0013] Preferably, the housing is provided with three operation buttons for extension, retraction, and stop, as well as a status indicator light. One end of each of the three operation buttons is connected to the common ground terminal of the microcontroller control motherboard, and the other end is connected to three independent general-purpose input ports of the microcontroller control motherboard. The positive terminal of the status indicator light is connected to the voltage regulator output of the microcontroller control motherboard, and the negative terminal is connected to multiple general-purpose output ports of the microcontroller control motherboard.

[0014] In summary, the present invention provides an electroscope with an automatically locking electrically operated stepless telescopic insulating rod, which has the following beneficial effects:

[0015] 1. This electroscope with an automatically locking, electrically adjustable, stepless telescopic insulating rod uses a miniature DC servo motor to drive a threaded column to rotate via a reduction gear set. The threaded column, through threaded transmission, drives the first insulating rod to extend or retract. Simultaneously, a first threaded cylinder inside the first insulating rod drives the second insulating rod, and the second threaded cylinder synchronously drives the third insulating rod. This allows for stepless adjustment of any length from zero to maximum stroke of each rod through continuous transmission of the screw thread pair, breaking through the fixed length limitation of traditional gear-type telescopic systems. It can adapt to different voltage levels and safety distance requirements. During this process, a Hall effect travel sensor detects the extension position of each rod in real time. The system feeds back to the microcontroller control board. When the pole reaches the target position, the microcontroller control board cuts off the power supply to the electromagnetic block. The reset spring immediately pushes the slider to pop out the locking pin and insert it into the corresponding slot, completing the synchronous mechanical locking of each stage of the pole. When the electromagnetic block is energized, it attracts the slider to retract and unlock the locking pin. This allows the pole to achieve fully automatic closed-loop operation of unlocking, extension, positioning, and self-locking under the alternating control of electromagnetic force and spring force. The operator only needs to press the button on the outer shell to complete all actions, without having to unlock, extend, and lock each section of the pole with both hands, reducing the operational burden and safety risks in high-altitude live-line work.

[0016] 2. This voltage detector with an automatically locking, electrically operated, stepless telescopic insulating rod continuously scrapes away water and dust during extension and retraction through insulating sealing rings fixed to the outside of each level of the insulating rod, preventing moisture from entering the inner cavity. This effectively avoids interference from electrical components with the voltage detector's signal and meets high-voltage insulation safety standards. Furthermore, the rechargeable lithium battery pack is equipped with overcharge, over-discharge, and short-circuit protection circuits and a Type-C charging interface. The microcontroller control board establishes signal links with the micro DC servo motor, rechargeable lithium battery pack, and Hall effect travel sensor via hard-wired electrical connections, avoiding the risk of electromagnetic interference from wireless communication under high-voltage electric fields. Status indicator lights display the battery level, extension / retraction progress, and locking status in real time through different colors and flashing frequencies, allowing operators to intuitively grasp the entire rod's working status while holding the bottom, without needing to focus on the top of the rod, further enhancing the safety and convenience of voltage detection operations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of another axial integral structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the electroscope body of the present invention when fully extended;

[0020] Figure 4 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 5This is a schematic diagram of a partial internal structure of the present invention;

[0022] Figure 6 For the present invention Figure 2 Enlarged view of point A in the middle;

[0023] Figure 7 This is a schematic diagram of the internal structure of the mounting frame of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Outer shell;

[0026] 2. The body of the voltage detector;

[0027] 3. Drive mechanism; 301. Miniature DC servo motor; 302. Reduction gear set; 303. Threaded column; 304. First insulating rod; 305. First threaded cylinder; 306. Second insulating rod; 307. Second threaded cylinder; 308. Third insulating rod;

[0028] 4. Self-locking mechanism; 401. Mounting frame; 402. Slider; 403. Locking pin; 404. Electromagnetic block; 405. Return spring; 406. Hall effect travel sensor;

[0029] 5. Control and power supply mechanism; 501. Microcontroller control motherboard; 502. Rechargeable lithium battery pack. Detailed Implementation

[0030] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings.

[0031] Example

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 as well as Figure 7 As shown, an electric stepless telescopic insulating rod with automatic locking is provided with a housing 1 and an electric detector body 2. The housing 1 is provided with a drive mechanism 3 and a self-locking mechanism 4.

[0033] The drive mechanism 3 includes a miniature DC servo motor 301. The output shaft of the miniature DC servo motor 301 is fixedly connected to a reduction gear set 302. The inside of the housing 1 is rotatably connected to a threaded post 303 that is fixedly connected to the output end of the reduction gear set 302. The outer side of the threaded post 303 is threadedly connected to a first insulating rod 304. The inner side of the first insulating rod 304 is rotatably connected to a first threaded cylinder 305. The outer side of the first threaded cylinder 305 is threadedly connected to a second insulating rod 306. The inner side of the second insulating rod 306 is rotatably connected to a second threaded cylinder 307. The outer side of the second threaded cylinder 307 is threadedly connected to a third insulating rod 308.

[0034] The miniature DC servo motor 301 is fixedly connected inside the housing 1. The reduction gear set 302 consists of a gear set and a protective shell. The protective shell is fixedly connected to the inner wall of the housing 1. The input end and output end of the gear set are fixedly connected to the miniature DC servo motor 301 and the threaded column 303, respectively.

[0035] By fixing the micro DC servo motor 301 inside the housing 1, and fixing the input and output ends of the reduction gear set 302 to the micro DC servo motor 301 and the threaded column 303 respectively, and fixing the protective shell of the reduction gear set 302 to the inner wall of the housing 1, the motor power is smoothly transmitted to the threaded column 303 after reduction and torque amplification. At the same time, the protective shell can effectively isolate impurities in the gear set and the inner cavity of the insulating rod to prevent transmission jamming.

[0036] The inner wall of the outer casing 1 is provided with a first limiting groove that matches the movement trajectory of the first insulating rod 304, the inner wall of the first insulating rod 304 is provided with a second limiting groove that matches the movement trajectory of the second insulating rod 306, and the inner wall of the second insulating rod 306 is provided with a third limiting groove that matches the movement trajectory of the third insulating rod 308.

[0037] By opening a first limiting groove on the inner wall of the outer casing 1 that matches the movement trajectory of the first insulating rod 304, opening a second limiting groove on the inner wall of the first insulating rod 304 that matches the movement trajectory of the second insulating rod 306, and opening a third limiting groove on the inner wall of the second insulating rod 306 that matches the movement trajectory of the third insulating rod 308, it is ensured that each level of insulating rod only moves axially and does not rotate circumferentially during the extension and retraction process, thus preventing the electroscope body 2 from tilting due to rotation.

[0038] The threaded post 303 passes through the first insulating rod 304 and is threadedly connected to the inner wall of the first threaded cylinder 305. The first threaded cylinder 305 passes through the second insulating rod 306 and is threadedly connected to the inner wall of the second threaded cylinder 307. Insulating sealing rings are fixedly connected to the outer sides of the first insulating rod 304, the second insulating rod 306 and the third insulating rod 308.

[0039] The threaded column 303 passes through the first insulating rod 304 and is threaded to the inner wall of the first threaded cylinder 305. The first threaded cylinder 305 passes through the second insulating rod 306 and is threaded to the inner wall of the second threaded cylinder 307. Insulating sealing rings are fixed on the outer sides of the first insulating rod 304, the second insulating rod 306 and the third insulating rod 308. This realizes the telescopic transmission between each level of the rod through the step-by-step linkage of the threaded pairs. The insulating sealing rings can continuously scrape off external water and dust during the extension and retraction of the rod and prevent moisture from entering the inner cavity, ensuring the long-term stability of the insulation performance of each level of transmission components in the high-pressure working environment.

[0040] The self-locking mechanism 4 includes a mounting frame 401, a slider 402 is slidably connected inside the mounting frame 401, a locking pin 403 is fixedly connected to the outside of the slider 402, an electromagnetic block 404 and a return spring 405 are fixedly connected to the side of the slider 402 away from the locking pin 403 and the inner wall of the mounting frame 401, and a Hall effect travel sensor 406 is fixedly connected inside the outer casing 1.

[0041] By sliding a slider 402 inside the mounting frame 401, fixing a locking pin 403 on one side of the slider 402, and setting an electromagnetic block 404 and a return spring 405 between the other side and the inner wall of the mounting frame 401, and fixing a Hall effect travel sensor 406 inside the housing 1, a fully automatic locking function is achieved. When the electromagnetic block 404 is energized, it attracts the slider 402, causing the locking pin 403 to retract and unlock. When the power is de-energized, the return spring 405 pushes the locking pin 403 to pop out and lock. The Hall effect travel sensor 406 provides real-time feedback on the position of the rod, which is then used by the microcontroller control motherboard 501 for closed-loop control, ensuring that the locking action is automatically triggered after the rod is in position, without the need for manual intervention.

[0042] There are three mounting frames 401, which are fixedly connected to the outer side of the outer shell 1, the first insulating rod 304 and the second insulating rod 306 respectively. The outer side of the first insulating rod 304, the second insulating rod 306 and the third insulating rod 308 are provided with no less than five slots that are evenly distributed. The slots are adapted to the locking pins 403.

[0043] Three mounting frames 401 are fixed to the outer side of the outer shell 1, the first insulating rod 304, and the second insulating rod 306, respectively. At least five equally spaced slots are provided on the outer side of the first insulating rod 304, the second insulating rod 306, and the third insulating rod 308, which are adapted to the locking pins 403. This ensures that each level of the rod has multiple locking positions for the locking pins 403 to be inserted throughout its entire stroke. No matter how long the rod extends or retracts, the locking pins 403 can be aligned with the nearest slot to complete the locking. This gives each level of the rod independent multi-position self-locking capability, effectively preventing any section of the rod from accidentally slipping under external force.

[0044] The housing 1 has a control and power supply mechanism 5 inside, including a microcontroller control motherboard 501, and a rechargeable lithium battery pack 502 is fixedly connected inside the housing 1.

[0045] By setting a microcontroller control motherboard 501 and a rechargeable lithium battery pack 502 inside the outer casing 1, the control center and power supply unit are integrated into the bottom grip area, avoiding cable dragging and insulation hazards caused by an external control box. The rechargeable lithium battery pack 502 can provide power in cycles without the need to replace the battery, which is convenient for repeated on-site operations.

[0046] The microcontroller control motherboard 501 is fixedly connected inside the housing 1. The microcontroller control motherboard 501 establishes electrical and signal links with the micro DC servo motor 301, the rechargeable lithium battery pack 502 and the Hall travel sensor 406 through hard wire electrical connections. The rechargeable lithium battery pack 502 is equipped with overcharge, over-discharge and short circuit protection circuits and has a Type-C charging interface at the bottom that extends to the outside of the housing 1.

[0047] By fixing the microcontroller control motherboard 501 inside the housing 1 and establishing electrical and signal links with the micro DC servo motor 301, the rechargeable lithium battery pack 502, and the Hall effect travel sensor 406 via hard wires, and by providing overcharge, over-discharge, and short-circuit protection circuits for the rechargeable lithium battery pack 502 and extending a Type-C charging interface to the outside of the housing 1, stable transmission of control signals and safe power management are achieved. The hard wire connection avoids electromagnetic interference that wireless communication may suffer under high voltage electric fields, and the Type-C interface facilitates the replenishment of universal charging equipment, improving the convenience of the work site.

[0048] The outer casing 1 is equipped with three operation buttons for extension, retraction, and stop, as well as a status indicator light. One end of each of the three operation buttons is connected to the common ground terminal of the microcontroller control motherboard 501, and the other end is connected to three independent general-purpose input ports of the microcontroller control motherboard 501. The positive terminal of the status indicator light is connected to the voltage regulator output of the microcontroller control motherboard 501, and the negative terminal is connected to multiple general-purpose output ports of the microcontroller control motherboard 501.

[0049] By connecting one end of each of the three operation buttons on the outer casing 1 (extension, retraction, and stop) to the common ground terminal of the microcontroller control motherboard 501, and the other end to three independent general-purpose input ports respectively, and connecting the positive terminal of the status indicator light to the voltage regulator output of the microcontroller control motherboard 501 and the negative terminal to multiple general-purpose output ports respectively, the operation buttons can transmit instructions to the control motherboard in a level transition manner. The status indicator light is driven by the microcontroller control motherboard 501 through an independent port and can be flexibly configured with different colors, brightness, and flashing frequencies to indicate the power level, extension / retraction status, and lock status respectively.

[0050] In use, initially, each insulating rod is in a retracted and locked state. When the operator presses the extension button on the outer casing 1, the microcontroller control board 501 detects a change in the input port level and simultaneously triggers the electromagnetic block 404 to generate a suction force, overcoming the elastic force of the reset spring 405 to retract and unlock the slider 402 and the locking pin 403. This drives the micro DC servo motor 301 to rotate the threaded column 303 via the reduction gear set 302. The threaded column 303 drives the first insulating rod 304 to extend via threaded transmission. Simultaneously, the first threaded cylinder 305 inside the first insulating rod 304 rotates accordingly, driving the second insulating rod 306 to extend. 307 synchronously drives the third insulating rod 308 to extend. Hall effect travel sensor 406 detects the position of each level of the rod in real time and feeds back to the microcontroller control board 501. When the rod reaches the target position or the operation button is released, the microcontroller control board 501 cuts off the power supply to the electromagnetic block 404. The reset spring 405 pushes the slider 402 and the locking pin 403 to pop out and insert into the corresponding slot to complete the locking. When the retraction operation button is pressed, the motor reverses and each level of the rod retracts step by step and locks automatically. When the stop button is pressed, the motor is immediately de-energized and the locking pin 403 automatically pops out to lock the current length, thereby realizing the one-button electric stepless extension and retraction and self-locking function of the voltage detector body 2.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A detector with an automatically locking electrically operated stepless telescopic insulating rod, comprising a housing (1) and a detector body (2), characterized in that: The outer shell (1) is provided with a drive mechanism (3) and a self-locking mechanism (4). The drive mechanism (3) includes a micro DC servo motor (301), the output shaft of which is fixedly connected to a reduction gear set (302). The inside of the housing (1) is rotatably connected to a threaded column (303) fixedly connected to the output end of the reduction gear set (302). The outer side of the threaded column (303) is threadedly connected to a first insulating rod (304). The inner side of the first insulating rod (304) is rotatably connected to a first threaded cylinder (305). The outer side of the first threaded cylinder (305) is threadedly connected to a second insulating rod (306). The inner side of the second insulating rod (306) is rotatably connected to a second threaded cylinder (307). The outer side of the second threaded cylinder (307) is threadedly connected to a third insulating rod (308).

2. The detector with an automatically locking electrically operated stepless telescopic insulating rod according to claim 1, characterized in that: The micro DC servo motor (301) is fixedly connected inside the housing (1). The reduction gear set (302) consists of a gear set and a protective shell. The protective shell is fixedly connected to the inner wall of the housing (1). The input end and output end of the gear set are fixedly connected to the micro DC servo motor (301) and the threaded column (303), respectively.

3. The electroscope with an automatically locking electrically operated stepless telescopic insulating rod according to claim 1, characterized in that: The inner wall of the outer shell (1) is provided with a first limiting groove that matches the movement trajectory of the first insulating rod (304), the inner wall of the first insulating rod (304) is provided with a second limiting groove that matches the movement trajectory of the second insulating rod (306), and the inner wall of the second insulating rod (306) is provided with a third limiting groove that matches the movement trajectory of the third insulating rod (308).

4. The electroscope with an automatically locking electrically operated stepless telescopic insulating rod according to claim 1, characterized in that: The threaded column (303) passes through the first insulating rod (304) and is threaded to the inner wall of the first threaded cylinder (305). The first threaded cylinder (305) passes through the second insulating rod (306) and is threaded to the inner wall of the second threaded cylinder (307). Insulating sealing rings are fixedly connected to the outer sides of the first insulating rod (304), the second insulating rod (306), and the third insulating rod (308).

5. The detector with an automatically locking electrically operated stepless telescopic insulating rod according to claim 1, characterized in that: The self-locking mechanism (4) includes a mounting frame (401), a slider (402) is slidably connected inside the mounting frame (401), a locking pin (403) is fixedly connected to the outside of the slider (402), an electromagnetic block (404) and a return spring (405) are fixedly connected to the side of the slider (402) away from the locking pin (403) and the inner wall of the mounting frame (401), and a Hall effect travel sensor (406) is fixedly connected inside the outer shell (1).

6. The electroscope with an automatically locking electrically operated stepless telescopic insulating rod according to claim 5, characterized in that: The number of mounting frames (401) is three and they are fixedly connected to the outer side of the outer shell (1), the first insulating rod (304) and the second insulating rod (306) respectively. The outer side of the first insulating rod (304), the second insulating rod (306) and the third insulating rod (308) are provided with no less than five slots that are evenly distributed. The slots are adapted to the locking pins (403).

7. The electroscope with an automatically locking electrically operated stepless telescopic insulating rod according to claim 1, characterized in that: The housing (1) is equipped with a control and power supply mechanism (5), including a microcontroller control motherboard (501), and a rechargeable lithium battery pack (502) is fixedly connected inside the housing (1).

8. The detector with an automatically locking electrically operated stepless telescopic insulating rod according to claim 7, characterized in that: The microcontroller control motherboard (501) is fixedly connected inside the housing (1). The microcontroller control motherboard (501) establishes electrical and signal links with the micro DC servo motor (301), the rechargeable lithium battery pack (502) and the Hall travel sensor (406) respectively through hard wire electrical connection. The rechargeable lithium battery pack (502) is equipped with overcharge, over-discharge and short circuit protection circuits and has a Type-C charging interface at the bottom that extends to the outside of the housing (1).

9. The electroscope with an automatically locking electrically operated stepless telescopic insulating rod according to claim 7, characterized in that: The outer casing (1) is provided with three operation buttons for extension, retraction and stop, as well as a status indicator light. One end of each of the three operation buttons is connected to the common ground terminal of the microcontroller control motherboard (501), and the other end is connected to three independent general-purpose input ports of the microcontroller control motherboard (501). The positive terminal of the status indicator light is connected to the voltage regulator output of the microcontroller control motherboard (501), and the negative terminal is connected to multiple general-purpose output ports of the microcontroller control motherboard (501).

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