一种防窃电功能的密封式电表
By introducing anti-theft and locking mechanisms into the meter box, and utilizing the combination of special bolts and grooves, a double-locking mechanism for the meter box is achieved, solving the problem of electricity theft from the meter and improving security and anti-theft capabilities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI DAHUA MEASUREMENT & CONTROL EQUIP CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-17
AI Technical Summary
Existing electricity meters lack effective anti-theft devices, resulting in electricity bill losses and safety hazards. Traditional designs have significant security shortcomings and cannot effectively prevent electricity theft.
An anti-theft and locking mechanism was designed, including a mounting block, a support plate, a connecting rod, a spring, a movable plate, a fixed block, a limit plate, bolts, and a wedge block. The meter box is double-locked by specially manufactured bolts and grooves to prevent unauthorized opening.
This improves the security of electricity meters, enabling them to identify electricity theft and effectively prevent the meter box from being forcibly broken into, thus enhancing the anti-theft function of the meters and improving the safety of users' electricity use.
Smart Images

Figure CN224518821U_ABST
Abstract
Claims
1. A sealed electricity meter with anti-theft function, comprising an electricity meter box (1), wherein an electricity meter body (2) is provided inside the electricity meter box (1), an anti-theft mechanism (3) is provided on one side of the electricity meter box (1), and a locking mechanism (4) is provided inside the electricity meter box (1). characterized in that The anti-theft mechanism (3) includes a mounting block (301) fixedly connected to the middle of one side of the meter box (1). The inner wall of the mounting block (301) is provided with a mounting groove (302). Two support plates (303) are fixedly connected inside the mounting groove (302). A first connecting rod (304) is inserted through both ends of one side of the two support plates (303). A spring (305) is sleeved on the outer wall of each first connecting rod (304). A movable plate (306) is fixedly connected to one side of each pair of first connecting rods (304). A fixing block (307) is fixedly connected to one side of each pair of movable plates (306). A groove (308) is provided on one side of each pair of fixing blocks (307).
2. The sealed electric meter with the electricity larceny prevention function according to claim 1, characterized in that: Both ends of the mounting block (301) are provided with strip holes (309), and the other end of each pair of first connecting rods (304) is fixedly connected to a limiting plate (310), and the limiting plate (310) is inserted into the strip hole (309).
3. The sealed electric meter with electricity larceny prevention function according to claim 1, characterized in that: The mounting block (301) has a bolt (311) threadedly connected to its front side, and a wedge block (312) is fixedly connected to the other end of the bolt (311).
4. The sealed electric meter with electricity larceny prevention function according to claim 1, characterized in that: The locking mechanism (4) includes a door (401) hinged to one side of the meter box (1), with limit rods (402) fixedly connected to both sides of the back of the door (401), and a steel plate (403) provided on one side of the door (401), with the two sides of the steel plate (403) interlocked with the limit rods (402).
5. The sealed electric meter with the electricity larceny prevention function according to claim 4, characterized in that: Two connecting rods (404) are rotatably connected to one side of the steel plate (403), and a torsion spring (405) is embedded at one end of each of the two connecting rods (404). Baffles (406) are fixedly connected to both sides of the inner wall of the meter box (1).
6. The sealed electric meter with electricity larceny prevention function according to claim 4, characterized in that: A partition (407) is fixedly connected to the middle of one side of the box door (401), and the partition (407) is directly opposite the mounting block (301).