A multi-power active high-voltage differential probe device

CN224840302UActive Publication Date: 2026-10-09GUANGDONG ZHONGQI TESTING TECH CO LTD
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Patent Information

Application Number
CN202522492146.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-25
Publication Date
2026-10-09
Estimated Expiration
2035-11-25

AI Technical Summary

Technical Problem

[0005]本实用新型的目的是解决现有高压差分探头装置在实际应用中存在连接可靠性不足的问题

Benefits of technology

1.本实用新型中,在将插头插入插槽内后,拧动转把便可带动四组夹板实现对两组插头的夹持固定,进而起到防止插头脱落的目的,避免在振动、线缆牵拉或意外触碰等外力作用时,插头易因受力松动或脱落,导致信号中断甚至设备损坏的问题,提高了使用时的稳定性。

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Abstract

The utility model provides a kind of multi-power active high-voltage differential probe device, it is related to high-voltage differential probe technical field, including equipment main body, the top of both sides of equipment main body is equipped with slot, the inside of two groups of slot is inserted with plug, the position of equipment main body close to plug is connected with clamping fixed component, the clamping fixed component includes fixed frame, the front end of fixed frame is connected with handlebar, the surface of handlebar is connected with first gear, the surface of first gear is connected with second gear, the inside of second gear is connected with bidirectional screw rod and is penetrated.The utility model in this way, after plug is inserted into slot, handlebar is twisted and four groups of clamping plate can be driven to realize the clamping fixation of two plugs, to prevent plug from falling off, avoid when vibration, cable pull or accidental touch external force, plug is loose or falls off easily due to stress, leading to signal interruption even equipment damage problem, improve the stability when using.
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Description

Technical Field

[0001] This utility model relates to the field of high-voltage differential probe technology, and in particular to a multi-power active high-voltage differential probe device. Background Technology

[0002] A high-voltage differential probe is an electronic instrument that uses floating-ground measurement technology to convert high-voltage differential signals into low-voltage signals that can be recognized by an oscilloscope.

[0003] Its core function is to convert high-voltage signals into safe, measurable low-voltage signals through electrical isolation and differential amplification technology, while suppressing common-mode noise interference. Through optical isolation, transformer isolation, or capacitor isolation technology, the high-voltage input terminal is completely isolated from the low-voltage output terminal (isolation voltage can reach several kilovolts), preventing high voltage from directly damaging measuring equipment such as oscilloscopes, while also protecting operators from the risk of electric shock.

[0004] Existing high-voltage differential probe devices suffer from insufficient connection reliability in practical applications. The connection between the plug and slot lacks a mechanical clamping and fixing structure. When the testing environment is subjected to external forces such as vibration, cable pulling, or accidental contact, the plug is prone to loosening or falling off, leading to signal interruption or even equipment damage. Utility Model Content

[0005] The purpose of this invention is to solve the problem of insufficient connection reliability in existing high-voltage differential probe devices in practical applications. The connection between the plug and slot lacks a mechanical clamping and fixing structure. When the testing environment is subjected to external forces such as vibration, cable pulling, or accidental contact, the plug is prone to loosening or falling off, leading to signal interruption or even equipment damage.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a multi-power active high-voltage differential probe device, comprising a main body, slots on both sides of the top of the main body, plugs inserted into the two sets of slots, a clamping and fixing assembly connected to the main body near the plugs, the clamping and fixing assembly comprising a fixing frame, a handle connected to the front end of the fixing frame, a first gear connected to the surface of the handle, a second gear connected to the surface of the first gear, a bidirectional screw penetrating through the interior of the second gear, two sets of moving plates connected to both sides of the bidirectional screw, threaded holes penetrating through the interior of each set of moving plates, a clamping plate connected to the top of each set of moving plates, and grooves formed on the surface of the clamping plate.

[0007] Furthermore, the position and size of the groove match the position and size of the plug, and the position and size of the first gear match the position and size of the second gear. Through the design of the groove, the plug can be fixed.

[0008] Furthermore, the first gear and the second gear form an meshing connection, and the bidirectional screw forms a threaded connection with the moving plate through a threaded hole. The meshing connection method can easily drive the bidirectional screw to rotate, while the thread can drive four sets of clamping plates to clamp and fix the two sets of plugs.

[0009] Furthermore, a knob is connected to the center of the front end of the device body, and a protective component is connected to the surface of the device body near the knob. The protective component includes a slide rail, which can protect the knob and prevent accidental changes to settings or signal interruption during use.

[0010] Furthermore, the surface of the slide rail is provided with a protective plate, and sliders are connected to both sides of the protective plate. Magnetic blocks are connected to the top of both sets of sliders. The slider design of the protective plate allows the knob to be easily slid open.

[0011] Furthermore, the slider and the slide rail form a sliding connection, and the inner wall of the slide rail is fitted with a magnet that matches the magnetic block. The design of the magnet makes it easy to fix the protective plate.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, after the plug is inserted into the slot, turning the handle will drive the four sets of clamps to clamp and fix the two sets of plugs, thereby preventing the plug from falling off. This avoids the problem that the plug is easily loosened or falls off due to external forces such as vibration, cable pulling or accidental contact, which may lead to signal interruption or even equipment damage, and improves the stability during use.

[0013] 2. In this utility model, when it is necessary to turn the knob, the protective plate can be pushed upwards to open. The protective plate protects the knob and avoids the problem of accidental touch that may change the settings or interrupt the signal during use. Attached Figure Description

[0014] Figure 1 This utility model presents a three-dimensional structural schematic diagram of a multi-power active high-voltage differential probe device; Figure 2 This invention presents a three-dimensional structural diagram of a multi-power active high-voltage differential probe device from another angle. Figure 3 This utility model provides a schematic diagram of the exploded plug structure of a multi-power active high-voltage differential probe device; Figure 4 This utility model provides an exploded structural diagram of the mounting frame for a multi-power active high-voltage differential probe device. Figure 5This invention presents a schematic diagram of the slide rail explosion structure of a multi-power active high-voltage differential probe device.

[0015] Legend: 1. Main body of the equipment; 2. Slot; 3. Plug; 4. Clamping and fixing assembly; 401. Fixing frame; 402. Rotary handle; 403. First gear; 404. Second gear; 405. Bidirectional screw; 406. Moving plate; 407. Threaded hole; 408. Clamping plate; 409. Groove; 5. Protective assembly; 501. Slide rail; 502. Protective plate; 503. Slider; 504. Magnetic block; 6. Knob. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] Examples, such as Figure 1 - Figure 5 As shown, this utility model provides a multi-power active high-voltage differential probe device, including a device body 1. Slots 2 are provided on the top of both sides of the device body 1. Plugs 3 are inserted into the two sets of slots 2. A clamping and fixing assembly 4 is connected to the device body 1 near the plugs 3. The clamping and fixing assembly 4 includes a fixing frame 401. A handle 402 is connected to the front end of the fixing frame 401. A first gear 403 is connected to the surface of the handle 402. A second gear 404 is connected to the surface of the first gear 403. A bidirectional screw 405 is connected through the interior of the second gear 404. Two sets of moving plates 406 are connected to the two sides of the bidirectional screw 405. A threaded hole 407 is provided through the interior of each set of moving plates 406. A clamping plate 408 is connected to the top of each set of moving plates 406. A groove 409 is provided on the surface of the clamping plate 408.

[0019] like Figure 3 - Figure 4 As shown, the position and size of the groove 409 match the position and size of the plug 3, and the position and size of the first gear 403 match the position and size of the second gear 404. Through the design of the groove 409, the plug 3 can be fixed.

[0020] like Figure 4As shown, the first gear 403 and the second gear 404 form a meshing connection, and the bidirectional screw 405 forms a threaded connection with the moving plate 406 through the threaded hole 407. The meshing connection can easily drive the bidirectional screw 405 to rotate, while the thread can drive the four sets of clamping plates 408 to clamp and fix the two sets of plugs 3.

[0021] like Figure 1 and Figure 5 As shown, a knob 6 is connected to the center of the front end of the device body 1. A protective component 5 is connected to the surface of the device body 1 near the knob 6. The protective component 5 includes a slide rail 501. The protective component 5 can protect the knob 6 and prevent accidental changes to settings or signal interruption during use.

[0022] like Figure 5 As shown, a protective plate 502 is provided on the surface of the slide rail 501. Slider 503 is connected to both sides of the protective plate 502. Magnetic blocks 504 are connected to the top of both sets of sliders 503. The slider 503 design of the protective plate 502 allows the knob 6 to be easily slid open.

[0023] like Figure 5 As shown, the slider 503 and the slide rail 501 form a sliding connection. The inner wall of the slide rail 501 is fitted with a magnet that matches the magnetic block 504. The design of the magnet can facilitate the fixing of the protective plate 502.

[0024] The effect achieved in Embodiment 1 is that after inserting the plug 3 into the slot 2, turning the handle 402 clockwise will drive the first gear 403 to rotate clockwise. When the first gear 403 rotates clockwise, it will also mesh with the second gear 404 in the forward direction, thereby causing the second gear 404 to drive the bidirectional screw 405 to rotate clockwise. When the bidirectional screw 405 rotates clockwise, it will cause the four sets of moving plates 406 to move towards the two sets of plugs 3 simultaneously, thereby pushing the clamping plate 408 through the groove 409 to achieve the two sets of clamping plates 408 groove 409. The clamping mechanism 9 prevents the plug 3 from falling off. When the plug 3 needs to be unplugged, the reverse throttle 402 rotates in opposite directions via the first gear 403 and the second gear 404. This reverse engagement drives the bidirectional screw 405 to rotate in reverse, thus releasing the clamp 408 from fixing the plug 3. This prevents the plug 3 from loosening or falling off due to external forces such as vibration, cable pulling, or accidental contact, which could lead to signal interruption or even equipment damage, thus improving stability during use. When the knob 6 needs to be rotated, the protective plate 502 can be slid upwards, allowing the slider 503 to slide within the slide rail 501. The slider 503 is then magnetically fixed to the inner wall of the slide rail 501 via the magnetic block 504. To close the switch, the protective plate 502 can be slid downwards.

[0025] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A multi-power active high-voltage differential probe device, comprising a main body (1), characterized in that: The top of both sides of the main body of the device (1) is provided with slots (2), and plugs (3) are inserted into the two sets of slots (2). The main body (1) of the device is connected to a clamping and fixing assembly (4) near the plug (3). The clamping and fixing assembly (4) includes a fixing frame (401). The front end of the fixing frame (401) is connected to a throttle (402). The surface of the throttle (402) is connected to a first gear (403). The surface of the first gear (403) is connected to a second gear (404). The interior of the second gear (404) is connected to a bidirectional screw (405). Both sides of the bidirectional screw (405) are connected to two sets of moving plates (406). Each set of moving plates (406) has a threaded hole (407) through it. The top of each set of moving plates (406) is connected to a clamping plate (408). The surface of the clamping plate (408) has a groove (409).

2. The multi-power active high-voltage differential probe device according to claim 1, characterized in that: The position and size of the groove (409) match the position and size of the plug (3), and the position and size of the first gear (403) match the position and size of the second gear (404).

3. The multi-power active high-voltage differential probe device according to claim 2, characterized in that: The first gear (403) and the second gear (404) are meshed together, and the bidirectional screw (405) is threadedly connected to the moving plate (406) through the threaded hole (407).

4. The multi-power active high-voltage differential probe device according to claim 1, characterized in that: A knob (6) is connected to the center of the front end of the main body (1). A protective component (5) is connected to the surface of the main body (1) near the knob (6). The protective component (5) includes a slide rail (501).

5. The multi-power active high-voltage differential probe device according to claim 4, characterized in that: The surface of the slide rail (501) is provided with a protective plate (502), and sliders (503) are connected to both sides of the protective plate (502). Magnetic blocks (504) are connected to the top of both sets of sliders (503).

6. The multi-power active high-voltage differential probe device according to claim 5, characterized in that: The slider (503) and the slide rail (501) are connected in a sliding manner, and the inner wall of the slide rail (501) is fitted with a magnet that matches the magnetic block (504).