CN-122014975-A - Anti-loosening connecting device with displacement sensing function suitable for transmission tower

CN122014975ACN 122014975 ACN122014975 ACN 122014975ACN-122014975-A

Abstract

The invention discloses a locking connection device with a displacement sensing function, which is applicable to a transmission tower and relates to the field of locking of connection members of towers, and the locking connection device comprises a main bolt, wherein a main nut is connected to the main bolt in a threaded manner, one side of the main nut is provided with a gasket, the locking connection device also comprises a mounting seat and two groups of connection components, one end of each connection component is connected with the gasket, and the mounting seat is detachably connected with the other ends of the two groups of connection components; the invention fixes the mounting seat and the tact switch at the rear side of the main nut through the matching of the thin screw rod and the clamping nut, when the main nut is loosened and displaced, the end surface of the main nut gradually approaches and finally triggers the tact switch at the rear side of the main nut, and the tact switch is triggered, so that the alarm indicator sends an alarm signal, thereby realizing timely sensing and active early warning of the bolt connection state and effectively preventing structural failure or safety accidents caused by the loosening of the nut.

Inventors

CHEN FAGUANG
YUAN KANGKANG
LI FEI
WANG MENGHAO
WANG JUNYAO
WANG XIAOHUI
WANG MENGTAO
WANG ZHIQIANG
DONG RUNYU
LI KAIGE
Niu Wenqun
LI MENGZHOU
Gu Haowen
FAN SHIBIN
ZHANG WEN
WANG YING
Niu yao
LI XIANG
LI ZHONGYONG
CHEN HUI

Assignees

国网河南省电力公司焦作供电公司

Dates

Publication Date: 20260512
Application Date: 20260205

Claims (7)

1. The anti-loosening connecting device with the displacement sensing function suitable for the transmission tower comprises a main bolt, wherein a main nut is connected to the main bolt in a threaded manner, and a gasket is arranged on one side of the main nut; A displacement detection element is arranged on one side, close to the main nut, of the mounting seat, and an alarm indicator connected with the displacement detection element is also arranged on the mounting seat; When the main nut is shifted due to looseness, the relative position between the main nut and the displacement detection element changes, so that the displacement detection element is triggered, and the alarm indicator sends an alarm signal.
2. The anti-loosening connecting device with displacement sensing function for a transmission tower according to claim 1, wherein a conical sleeve is arranged on one side of the gasket, which is close to the main nut, and a conical hole matched with the conical sleeve is arranged on the corresponding side of the main nut.
3. The anti-loosening connecting device with displacement sensing function for transmission towers according to claim 2, wherein a plurality of openings are formed in the conical sleeve in a surrounding mode.
4. The anti-loosening connecting device with the displacement sensing function, which is applicable to the transmission tower, as set forth in claim 1, is characterized in that the gasket is integrally connected with two lugs, and the front side and the rear side of the mounting seat are uniformly connected with connecting lugs.
5. The anti-loosening connection device with displacement sensing function for transmission towers according to claim 1, wherein the displacement detection element is a tact switch, and the triggering end of the displacement detection element corresponds to the end face of the main nut.
6. The anti-loosening connection device with the displacement sensing function, which is applicable to the transmission tower, as set forth in claim 1, is characterized in that the alarm indicator is an LED indicator lamp or an audible and visual alarm.
7. The anti-loosening connecting device with the displacement sensing function, which is applicable to a transmission tower, as set forth in claim 4, wherein the connecting assembly comprises a thin screw, one end of the thin screw is fixedly connected with the lug, the other end of the thin screw penetrates out of a through hole formed in the connecting lug, two clamping nuts are connected to the thin screw in a threaded manner, and the two clamping nuts clamp and fix the connecting lug.

Description

Anti-loosening connecting device with displacement sensing function suitable for transmission tower Technical Field The invention belongs to the field of looseness prevention of connecting members of towers, and particularly relates to a looseness prevention connecting device with a displacement sensing function, which is suitable for a transmission tower. Background The transmission tower is used as a key supporting structure of the high-voltage transmission line, and the reliability of the connection node of the transmission tower is directly related to the safe and stable operation of the whole power system. In the long-term service process, the connecting bolts of the towers are influenced by complex dynamic loads such as wind vibration, wire galloping and earthquake, and the loosening is easy to occur. Once the nuts are loosened, the rigidity and the bearing capacity of the nodes are obviously weakened, and structural instability and even tower falling accidents can be caused when the nuts are serious. In order to solve the problem of bolt loosening, intelligent monitoring technology is gradually introduced in recent years besides adopting traditional mechanical anti-loosening measures such as double nuts, spring washers and the like in engineering practice. At present, partial bolt looseness monitoring devices realize the perception of pretightening force change or relative displacement by integrating miniature displacement or pressure sensors in nuts. However, the sensor is embedded into the nut body, so that the manufacturing process is complex, the cost is high, and the mechanical property of the nut can be weakened. Therefore, we propose a locking connection device with displacement sensing function suitable for transmission towers to solve the above problems. Disclosure of Invention Aiming at the problems that a sensor is embedded into a nut body, the manufacturing process is complex, the cost is high, and the mechanical property of the nut is possibly weakened, the invention provides the anti-loosening connecting device with the displacement sensing function, which is suitable for a transmission tower. The invention solves the technical problems by adopting the scheme that the anti-loosening connecting device with the displacement sensing function suitable for the transmission tower comprises a main bolt, wherein the main bolt is in threaded connection with a main nut, one side of the main nut is provided with a gasket, the anti-loosening connecting device also comprises a mounting seat and two groups of connecting components, one end of each connecting component is connected with the gasket, and the mounting seat is detachably connected with the other ends of the two groups of connecting components; A displacement detection element is arranged on one side, close to the main nut, of the mounting seat, and an alarm indicator connected with the displacement detection element is also arranged on the mounting seat; When the main nut is shifted due to looseness, the relative position between the main nut and the displacement detection element changes, so that the displacement detection element is triggered, and the alarm indicator sends an alarm signal. Preferably, a conical sleeve is arranged on one side, close to the main nut, of the gasket, and a conical hole matched with the conical sleeve is arranged on the corresponding side of the main nut. Preferably, a plurality of openings are formed on the conical sleeve in a surrounding mode. Preferably, the gasket is integrally connected with two lugs, and the front side and the rear side of the mounting seat are uniformly connected with connecting lugs. Preferably, the displacement detecting element is a tact switch, and the trigger end of the tact switch corresponds to the end face of the main nut. Preferably, the alarm indicator is an LED indicator lamp or an audible and visual alarm. Preferably, the connecting assembly comprises a thin screw rod, one end of the thin screw rod is fixedly connected with the lug, the other end of the thin screw rod penetrates out of a through hole formed in the connecting lug, two clamping nuts are connected to the thin screw rod in a threaded mode, and the two clamping nuts clamp and fix the connecting lug. Compared with the prior art, the invention has the beneficial effects that: 1. According to the invention, the mounting seat and the tact switch are fixed at the rear side of the main nut through the cooperation of the thin screw rod and the clamping nut, when the main nut is loosened and displaced, the end face of the main nut gradually approaches to and finally triggers the tact switch positioned at the rear side of the main nut, and the tact switch is triggered, so that the alarm indicator sends an alarm signal, thereby realizing timely sensing and active early warning of the bolt connection state and effectively preventing structural failure or safety accidents caused by the loosening of the nut. 2. According to