CN-119905304-B - Live-wire insulation encapsulation electric tool for exposed parts of busbar

CN119905304BCN 119905304 BCN119905304 BCN 119905304BCN-119905304-B

Abstract

The invention relates to an electrified insulation encapsulation electric tool for a busbar exposed part, which comprises an insulation operation rod, an encapsulation sleeve assembly, a compaction assembly and an execution assembly, wherein the execution assembly is arranged at the end part of the insulation operation rod, the compaction assembly is arranged on the execution assembly, the encapsulation sleeve assembly comprises a heat shrinkage sleeve and a mounting piece arranged on the heat shrinkage sleeve, the compaction assembly comprises two insulation sleeve seats fixed on the execution assembly, the two insulation sleeve seats are provided with connecting pieces for being inserted on the mounting piece, the two insulation sleeve seats are also provided with heating strips, the heat shrinkage sleeve is arranged between the two insulation sleeve seats, the heat shrinkage sleeve is compacted on the busbar and is encapsulated through opposite extrusion of the two insulation sleeve seats, and the use stability of the device can be kept while the problem of overlong heating time of the heat shrinkage sleeve is avoided.

Inventors

WU SHUDI
LIN XIANGYU
YANG LIFEI
CAI ZHENMAO
WANG XIANGLIN
ZHUANG YAN
PENG WEIWEN
CHEN YIQIANG
LIN XIABING
CAI YIDONG
CHEN WEIBO
WEN ZHIBIN

Assignees

国网福建省电力有限公司
国网福建省电力有限公司泉州供电公司

Dates

Publication Date: 20260512
Application Date: 20250113

Claims (6)

1. The electric tool comprises an insulating operation rod (1) and is characterized by further comprising an insulating sleeve assembly (2), a compaction assembly (3) and an execution assembly (4), wherein the execution assembly (4) is arranged at the end part of the insulating operation rod (1), the compaction assembly (3) is arranged on the execution assembly (4), the insulating sleeve assembly (2) comprises a heat shrinkage sleeve (21) and a mounting piece (22) arranged on the heat shrinkage sleeve (21), the compaction assembly (3) comprises two insulating sleeve seats (31) fixed on the execution assembly (4), a connecting piece (32) for being inserted on the mounting piece (22) is arranged on the two insulating sleeve seats (31), a heating strip (33) is further arranged on the two insulating sleeve seats (31), the heat shrinkage sleeve (21) is arranged between the two insulating sleeve seats (31), and the heat shrinkage sleeve (21) is compacted on a busbar through opposite extrusion of the two insulating sleeve seats (31) to complete the encapsulation; The heat shrinkable sleeve (21) is elliptical, and the joint of one side of the elliptical heat shrinkable sleeve (21) is disconnected, two mounting pieces (22) are arranged, and the two mounting pieces (22) are respectively arranged on the outer surface of the upper end and the outer surface of the lower end of the heat shrinkable sleeve (21); The mounting piece (22) is L-shaped in cross section, a limiting block (23) is rotationally connected to the side wall of the mounting piece (22) through a torsion spring, a magnetic block (24) is arranged at the tail end of the limiting block (23), electromagnets (25) are arranged on the outer surface of the upper end and the outer surface of the lower end of the heat shrinkage sleeve (21), the electromagnets (25) generate electromagnetism through an electric control assembly, and the electromagnets (25) are matched with the magnetic block (24); The electric control assembly comprises a mounting piece (22), wherein a cavity (26) is formed in the mounting piece, a fixed seat (261) is arranged at the top of the cavity (26), the electric control assembly comprises two wires and a copper sheet button (262) positioned in the cavity (26), one end of the copper sheet button (262) is fixedly arranged at the bottom of the fixed seat (261), the other end of the copper sheet button (262) is a movable end, a spring (263) is arranged between the top of the movable end of the copper sheet button (262) and the surface of the cavity (26), a base (264) is fixedly arranged at the bottom of the cavity (26), two fixed points are arranged at the top of the base (264) and are in contact with the copper sheet button (262) to form a closed loop when the copper sheet button (262) is not pressed through the two fixed points, one end of the wires is connected with the positive electrode of a dry battery, the other end of the wires is connected with one fixed point on the base (264), the other fixed point on the base (264) is connected with one end of a coil of an electromagnet (25), and the other end of the coil of the electromagnet (25) is connected with the negative electrode of the dry battery; The temperature sensing assembly comprises a bimetallic strip temperature controller (5), and after the heating strip (33) is heated, the bimetallic strip temperature controller (5) bends towards the heating strip (33) and enables the movable end of the copper sheet button (262) to tilt to be separated from two fixed points to form an open circuit.
2. The live-wire insulation packaging electric tool for the exposed parts of the busbar according to claim 1, wherein two ends of the insulation sleeve seat (31) are arc-shaped and bent towards the connecting piece (32), a plurality of strip-shaped grooves (34) are formed in the arc-shaped bent part of the insulation sleeve seat (31) at intervals, and the strip-shaped grooves (34) of the arc-shaped bent parts of the two insulation sleeve seats (31) are staggered.
3. A live insulated encapsulated power tool for exposed parts of a busbar as set forth in claim 1 wherein said connector (32) is shaped like a Chinese character 'kou'.
4. The live-wire insulation packaging electric tool for the exposed parts of the busbar of claim 1, wherein the execution assembly (4) comprises a first support plate (41) arranged at the upper end of the end part of the insulation operation rod (1), the upper surface of the first support plate (41) is fixedly connected with the lower surface of one insulation sleeve seat (31), the rear end of the first support plate (41) exceeds the insulation sleeve seat (31), a notch is formed in the part, exceeding the insulation sleeve seat (31), of the first support plate (41), a first rotating motor (6) is arranged on the side wall of the first support plate (41), a rotating shaft is fixedly arranged at the output end of the first rotating motor (6), the rotating shaft penetrates through the first support plate (41) in a rotating mode, a rotating plate (42) is fixedly arranged on the part, located at the notch, of the rotating shaft, and a lifting mechanism is arranged at the top of the rotating plate (42) and used for controlling the two insulation sleeve seats (31) to mutually extrude.
5. The live-wire insulation packaging electric tool for the busbar exposed part is characterized in that the lifting mechanism comprises a lifting seat (7) arranged at the top of a rotating plate (42), the inside of the lifting seat (7) is of a hollow structure, sliding ports are vertically formed in one side of the lifting seat (7) towards an insulation sleeve seat (31), the sliding ports are communicated with the inside of the lifting seat (7), a second rotating motor (71) is arranged at the bottom of the rotating plate (42), a driving screw (72) is fixedly arranged at the output end of the second rotating motor (71), the driving screw (72) is rotatably arranged inside the lifting seat (7) in a penetrating mode, driving blocks (73) are connected to the outer threads of the driving screw (72), two sliding rods (74) are vertically arranged inside the lifting seat (7), the two sliding rods (74) are symmetrically arranged on two sides of the driving screw (72), two ends of the driving blocks (73) are respectively connected with the two sliding rods (74) in a sliding mode, the front end of the driving block (73) slides out of the driving block (73), and the front end of the driving block (73) is fixedly connected with the other end of the second supporting plate (75), and the other end of the driving block is fixedly connected with the bottom of the insulation sleeve seat (31).
6. A live insulated encapsulated power tool for exposed parts of busbar as set forth in claim 1, wherein said insulated operating rod (1) is of telescopic rod construction.

Description

Live-wire insulation encapsulation electric tool for exposed parts of busbar Technical Field The invention relates to an electric tool for live insulation encapsulation of a busbar exposed part, and belongs to the technical field of insulation encapsulation. Background In an electric power system, in order to ensure safety and improve reliability, insulation treatment is necessary for key parts of a transformer substation, insulation treatment should be performed for a medium (low) voltage side lead wire, an outdoor bus (without an overhead bus) and a wiring terminal of a main transformer of 220kV and below according to the requirement of the anti-claim 2.1.24 of a southern electric network company, insulation measures are also recommended for a lead wire from a 35kV sleeve to a bus of a 500 (330) kV transformer, and an insulated wire should be used for a 10kV overhead line within 2km of an outlet of the transformer substation. However, the conventional insulation packaging mode has significant limitations and potential safety hazards, for example, chinese patent CN118888320a discloses a main transformer low-voltage side live insulation packaging device, which is inserted into a penetrating block through movement of the entering block to keep the packaging sleeve stable, and in the use process, when the device is rocked, the entering block moves in the opposite direction to slide out of the penetrating block, i.e. the stability of the device is poor. Disclosure of Invention In order to solve the problems in the prior art, the invention provides a live insulation encapsulation electric tool for a busbar exposed part, which can keep the use stability of a device and avoid the problem that a heat shrinkage sleeve is excessively long in heating time. The technical scheme of the invention is as follows: The electric tool comprises an insulating operation rod, an encapsulating sleeve assembly, a compacting assembly and an executing assembly, wherein the executing assembly is arranged at the end part of the insulating operation rod, the compacting assembly is arranged on the executing assembly, the encapsulating sleeve assembly comprises a heat shrinkage sleeve and a mounting piece arranged on the heat shrinkage sleeve, the compacting assembly comprises two insulating sleeve seats fixed on the executing assembly, a connecting piece for being inserted on the mounting piece is arranged on the two insulating sleeve seats, a heating strip is further arranged on the two insulating sleeve seats, the heat shrinkage sleeve is arranged between the two insulating sleeve seats, and the heat shrinkage sleeve is compacted on the busbar by opposite extrusion of the two insulating sleeve seats to complete encapsulation. The heat shrinkable sleeve is oval, the joint of one side of the oval heat shrinkable sleeve is disconnected, two mounting pieces are arranged, the two mounting pieces are respectively mounted on the outer surface of the upper end and the outer surface of the lower end of the heat shrinkable sleeve, and temperature sensing assemblies are arranged in the two mounting pieces. The two ends of the insulating sleeve seat are arc-shaped and are bent towards the connecting piece, a plurality of strip-shaped grooves are formed in the arc-shaped bent portion of the insulating sleeve seat at intervals, and the two strip-shaped grooves of the arc-shaped bent portion of the insulating sleeve seat are staggered. Wherein the connecting piece is shaped like a Chinese character 'kou'. The heat shrinkage sleeve is characterized in that the section of the mounting piece is L-shaped, the side wall of the mounting piece is rotationally connected with a limiting block through a torsion spring, the tail end of the limiting block is provided with a magnetic block, the outer surface of the upper end and the outer surface of the lower end of the heat shrinkage sleeve are respectively provided with an electromagnet, the electromagnets generate electromagnetism through an electric control assembly and are matched with the magnetic block, and the connecting piece is inserted into the mounting piece and prevented from sliding out through the limiting block. The electric control assembly comprises a mounting piece, wherein a cavity is formed in the mounting piece, a fixing seat is arranged at the top of the cavity, the electric control assembly comprises two wires and copper sheet keys positioned in the cavity, one end of each copper sheet key is fixedly arranged at the bottom of the fixing seat, the other end of each copper sheet key is a movable end, a spring is arranged between the top of each copper sheet key movable end and the surface of the cavity, a base is fixedly arranged at the bottom of the cavity, two fixing points are arranged at the top of the base and are in contact with the copper sheet keys to form a closed loop when the copper sheet keys are not pressed through the two fixing points, one end of each wire is connected with t