一种电力检修的便携验电器
By designing the inner sliding rod inside the sleeve and employing a magnetic self-locking mechanism, the problems of exposed voltage detector heads and inconvenient operation have been solved, enabling convenient and safe use of voltage detectors and improving the efficiency and safety of on-site power maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANSHAN LIXIN POWER INSTALLATION CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-17
AI Technical Summary
Existing voltage detectors have problems in power maintenance, such as exposed detection heads lacking protection, insufficient stability of telescopic structures, and inconvenient operation, which affect the accuracy and safety of detection.
The design features an inner rod that slides inside the sleeve, combined with a magnetic self-locking and double locking mechanism. After the inner rod extends, it is fixed by magnetic attraction, allowing for easy unfolding and storage with just one hand. The detection probe is hidden inside the sleeve, and mechanical anti-slip mechanism is achieved through a locking ring and lever assembly.
It achieves dual physical isolation protection for the detection probe, allows for quick one-handed extension and retraction, improves the portability and safety of the electroscope, and reduces operational complexity and safety hazards.
Smart Images

Figure CN224518836U_ABST
Abstract
Claims
1. A portable electric tester for electrical maintenance, characterized by: The device includes a base (1), a sleeve (2) connected to the base (1), an inner rod (3) slidably connected inside the sleeve (2), a detection probe (5) connected to the top surface of the upper end of the inner rod (3), the sum of the lengths of the inner rod (3) and the detection probe (5) being less than the internal depth of the sleeve (2), an annular magnet (4) connected to the inner side of the sleeve (2), and the magnet (4) connected to the top surface of the lower end of the inner rod (3). The contact surfaces of the two magnets (4) are the N pole and the S pole, respectively. The upper part is equipped with a ring-shaped indicator light (6), and the lower end of the inner rod (3) has several grooves (7). Several locking rods (8) are slidably connected to the side wall of the base (1). A cap-shaped block is connected to one end of the locking rod (8) facing the center point of the base (1). A return spring (9) is sleeved on the locking rod (8). One end of the return spring (9) is connected to the inner side of the base (1), and the other end is connected to the cap-shaped block. A limiting component for limiting the sliding of the locking rod (8) is provided on the outer side of the base (1).
2. A portable electrical power service tester according to claim 1, wherein: The limiting component includes a locking ring (11), and the base (1) is provided with a thread (10) on the outside. The locking ring (11) is connected to the base (1) thread (10) through the thread (10). The locking ring (11) is limited to the locking rod (8). The top of the locking ring (11) is connected to several limiting rods (12). The top of the limiting rods (12) is provided with a limiting disc that contacts the base (1).
3. A portable electrical power service tester according to claim 2, wherein: Reflective stickers (13) are provided on both the inner rod (3) and the sleeve (2).
4. A portable electrical inspection device according to claim 3, characterized in that: The lower part of the sleeve (2) is fitted with an anti-slip sleeve (14).
5. A portable electrical power service tool according to claim 4, characterized in that: The outer ring of the locking ring (11) is connected with several rubber strips (15).
6. A portable electrical tester for electrical power servicing according to claim 5, characterised in that: The top opening of the sleeve (2) is detachably connected to a top cover (16).