一种高压电缆分接箱用电缆孔封堵装置
By using a rigid frame and flexible sealing structure for the sealing element, the problem of sealing performance degradation caused by the aging of traditional sealing materials is solved, enabling long-term sealing and rapid maintenance of high-voltage cable junction boxes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG AMPDEC ELECTRIC TECH CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional cable hole sealing materials are susceptible to aging due to environmental factors, leading to a decline in sealing performance. They cannot effectively prevent the intrusion of moisture, corrosive gases, and liquids, thus affecting the safe operation of high-voltage cable junction boxes.
The sealing element adopts a composite structure including a sealing plate and a connecting sleeve. Through the threaded engagement of the connecting sleeve and the locking sleeve and the abutment of the limiting plate, a rigid frame plus a flexible seal is formed. Combined with a flexible barrier ring, the cable and the box are tightly fitted, eliminating assembly gaps.
It effectively blocks the penetration paths of moisture, corrosive gases and liquids, extends the insulation life of equipment, and supports quick plugging and unplugging of cables and maintenance, reducing the time required for each maintenance session.
Smart Images
Figure CN224520635U_ABST
Abstract
Claims
1. A cable hole sealing device for a high-voltage cable distribution box, characterized in that include: The sealing element includes a sealing plate (1) and a connecting sleeve (2). The connecting sleeve (2) is a cylindrical structure and is used to be fitted onto a high-voltage cable. The sealing plate (1) is located at either end of the connecting sleeve (2) and abuts against the outer wall of the junction box. The locking element includes a locking sleeve (3) for passing through a high-voltage cable and a limiting plate (4). The limiting plate (4) is disposed at the end of the locking sleeve (3). The end of the locking sleeve (3) away from the limiting plate (4) can extend into the connecting sleeve (2). The locking sleeve (3) and the connecting sleeve (2) are detachably connected. The limiting plate (4) abuts against the inner sidewall of the junction box.
2. A cable hole sealing device for a high-voltage cable joint box according to claim 1, characterized in that The connecting sleeve (2) has a groove (5) for accommodating the locking sleeve (3). The inner sidewall of the groove (5) is provided with an internal thread (6). The locking sleeve (3) has an external thread (7) that is adapted to the internal thread (6). The connecting sleeve (2) and the locking sleeve (3) are connected by a threaded engagement.
3. A cable hole sealing device for a high voltage cable joint box according to claim 1, characterized in that The inner diameter of the connecting sleeve (2) is the same as the inner diameter of the locking sleeve (3).
4. The cable hole sealing device for a high-voltage cable joint box according to claim 1, characterized in that, The sealing plate (1) is provided with a plurality of first flexible barrier rings (8) with progressively increasing diameters on the side near the outer wall of the junction box, and the center of any first flexible barrier ring (8) coincides with the central axis of the sealing plate (1).
5. The cable hole sealing device for a high-voltage cable joint box according to claim 1, characterized in that, The inner walls of the connecting sleeve (2) and the locking sleeve (3) are each provided with a second flexible barrier ring (9) at intervals, and the second flexible barrier ring (9) abuts against the outer wall of the high voltage cable.
6. A cable hole sealing device for a high voltage cable joint box according to claim 1, characterized in that The side wall of the limiting plate (4) has anti-slip grooves (10).
7. A cable hole sealing device for a high voltage cable joint box according to claim 1, characterized in that The connecting sleeve (2) has a chamfered structure (11) on the side near the sealing plate (1).