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CN-121768897-B - Fixing device for pole-mounted circuit breaker and using method thereof

CN121768897BCN 121768897 BCN121768897 BCN 121768897BCN-121768897-B

Abstract

The invention discloses a fixing device of a pole-mounted circuit breaker and a use method thereof, relating to the technical field of pole-mounted circuit breakers, comprising a box body, wherein lifting components are arranged in the two sides of the box body, the inside of the lifting components is connected with a fixing sleeve in a vertical sliding way, the electric capacity has been placed at fixed sleeve's top, the outer wall both sides of electric capacity are connected with the location boss, fixed sleeve's both sides have been seted up with location boss matched with mounting groove, one side of mounting groove sets up the pre-fixed subassembly. Through the spacing claw and the cooperation of location boss of pre-fixing subassembly, quick pre-fixing when realizing the electric capacity installation, combine lifting unit drive fixed sleeve withdrawal in-process again, clamping assembly forms dual fixed knot structure with the help of supporting seat conical surface self-holding electric capacity, promotes the installation stability of electric capacity under outdoor complex environment by a wide margin, has increased the fixed capacity to electric capacity.

Inventors

  • LI WENLEI
  • ZHANG ZEDONG
  • QIU HONGYUAN
  • MENG ZHENGGUANG
  • CHEN YANLI

Assignees

  • 河南宇和电气有限公司

Dates

Publication Date
20260508
Application Date
20260303

Claims (8)

  1. 1. The fixing device for the pole-mounted circuit breaker comprises a box body (101) and is characterized in that lifting components are arranged inside two sides of the box body (101), a fixing sleeve (102) is connected inside the lifting components in a vertical sliding mode, a capacitor (103) is arranged at the top of the fixing sleeve (102), positioning bosses (104) are connected to two sides of the outer wall of the capacitor (103), mounting grooves (105) matched with the positioning bosses (104) are formed in two sides of the fixing sleeve (102), a pre-fixing component is arranged on one side of the mounting grooves (105) and plays a pre-fixing role on the capacitor (103), the situation that the capacitor (103) is prevented from being separated is avoided, a clamping component fixed to the outer wall of the capacitor (103) is arranged inside the fixing sleeve (102), a supporting seat (106) located below the fixing sleeve (102) is connected inside the box body (101), and a conical surface matched with the clamping component is arranged at the top of the supporting seat (106); The top of the capacitor (103) is connected with a terminal (107), the top of the capacitor (103) is connected with an upper shell (108), a conductive rod (109) is connected in the upper shell (108), a movable shell (112) and a connecting component are connected to the outer wall of the conductive rod (109) in a sliding manner, the connecting component is matched with the terminal (107), the top of the box (101) is connected with a circuit breaker (110), and an electric lead (111) is connected between the circuit breaker (110) and the conductive rod (109); The inside of the fixed sleeve (102) is provided with cavities uniformly distributed in circumference, the clamping assembly comprises clamping jaws (207) rotationally connected in the cavities, the bottoms of the clamping jaws (207) are rotationally connected with rollers matched with conical surfaces, the bottoms of the clamping jaws (207) are connected with the cavities through springs, and the tops of the clamping jaws (207) are connected with cushion blocks contacted with the outer walls of the capacitors (103); The connecting assembly comprises a movable frame (302) which is connected in the movable housing (112) in a sliding manner, a clamping piece (303) connected with the terminal (107) is rotatably connected in the movable frame (302), the clamping piece (303) is connected with the movable frame (302) through a spring, the tail end of the clamping piece (303) is provided with an arc surface, and an unlocking assembly which is used for fixing the movable frame (302) is connected to the movable housing (112).
  2. 2. The pole-mounted circuit breaker fixing device according to claim 1, wherein the lifting assembly comprises a rotating sleeve (201) rotatably connected to the upper portion of the supporting seat (106), the rotating sleeve (201) is externally connected with a rotating driving structure, a spiral sliding groove (202) is formed in the inner wall of the rotating sleeve (201), the fixing sleeve (102) is slidably connected to the rotating sleeve (201), a sliding pin located in the sliding groove (202) is connected to the outer wall of the fixing sleeve (102), a spline rod (203) extending into the supporting seat (106) is connected to the bottom of the fixing sleeve (102), and the spline rod (203) is slidably connected with the supporting seat (106).
  3. 3. The pole-mounted circuit breaker fixing device according to claim 1, wherein a first hydraulic cylinder (301) is connected between the upper shell (108) and the movable shell (112), the first hydraulic cylinder (301) is externally connected with a liquid supply device, the connecting component comprises a movable frame (302) which is slidably connected in the movable shell (112), a clamping piece (303) which is connected with the terminal (107) in a rotating mode is connected inside the movable frame (302), the clamping piece (303) is connected with the movable frame (302) through a spring, an arc surface is arranged at the tail end of the clamping piece (303), and an unlocking component which is used for fixing the movable frame (302) is connected to the movable shell (112).
  4. 4. The pole-mounted circuit breaker fixing device according to claim 1, wherein an unlocking shell (401) is connected to the outside of the movable shell (112), the unlocking assembly comprises a bar-shaped frame (402) which is connected to the unlocking shell (401) in a sliding mode, the bar-shaped frame (402) and the unlocking shell (401) are connected through springs, an unlocking plate (403) is connected to one end, far away from the terminal (107), of the movable frame (302), a symmetrically arranged positioning hole (404) is formed in the outer wall of the unlocking plate (403), a first positioning frame (405) and a second positioning frame (406) which are inserted into the positioning hole (404) are connected to the side wall of the upper shell (108) in a sliding mode, a first baffle plate (407) and a second baffle plate (408) are connected to the movable frame (302), mutually matched inclined planes are formed in the opposite sides of the first positioning frame (405) and the second positioning frame (406) and the first baffle plate (407) and the second baffle plate (408), and the second positioning frame (406) is provided with a fixing groove (409) which is inserted into the second baffle plate (408).
  5. 5. The pole-mounted circuit breaker fixing apparatus according to claim 4, wherein the first and second shutters (407, 408) are connected with the movable housing (112) through springs, an electromagnet (410) is connected to the movable housing (112), a permanent magnet matched with the electromagnet (410) is connected to the first shutter (407), a push rod (411) is connected to the top in the upper housing (108), the unlocking plate (403) is connected with the housing through springs, a first inclined plate (412) is connected to the upper housing (108), and a second inclined plate (413) matched with the first inclined plate (412) is connected to one side of the second shutter (408).
  6. 6. The pole-mounted circuit breaker fixing device according to claim 5, wherein the box body (101) is rotationally connected with a rotating rod (501), the rotating rod (501) is connected with a rotating sleeve (201) through a gear transmission structure (502), one end of the rotating rod (501) is connected with a handle (503) located outside the box body (101), one end of the rotating rod (501) away from the handle (503) is provided with a second hydraulic cylinder (504), the second hydraulic cylinder (504) is communicated with the first hydraulic cylinder (301), one end of the rotating rod (501) away from the handle (503) is provided with a threaded portion, a piston of the second hydraulic cylinder (504) is connected with a threaded sleeve (505) in threaded connection with the rotating rod (501), and the supporting seat (106) is connected with a supporting frame, and the threaded sleeve (505) is in sliding connection with the supporting frame.
  7. 7. The pole-mounted circuit breaker fixing apparatus according to claim 6, wherein the top of the capacitor (103) is connected with a rain cover, the rain cover comprises an upper cover (113) and a lower cover (114), the upper cover (113) and the lower cover (114) are connected through a buckle, and a rain-proof conical surface (115) is arranged at the bottom of the lower cover (114).
  8. 8. A method of using the pole-mounted circuit breaker fixture of any one of claims 6 to 7, comprising the steps of: S1, pre-fixing, namely rotating a rotating rod (501), installing a capacitor (103) in an extended fixed sleeve (102), and limiting and fixing a positioning boss (104) by a pre-fixing assembly; s2, electricity taking connection, namely, an upper shell (108) is arranged on the top of the capacitor (103), and an electricity taking wire (111) is used for connecting the upper shell (108) with the circuit breaker (110); S3, fixing, namely reversing a rotating rod (501), retracting a fixed sleeve (102) into a box body (101), fixing a capacitor (103) by a clamping assembly, and connecting and fixing the terminal by a clamping piece (303) in a movable frame (302) contacting with the terminal (107); s4, after the circuit breaker (110) is communicated, current enters the capacitor (103) through the power taking wire (111) and the clamping piece (303), and the capacitor (103) supplies power to electric equipment; s5, after the damage of the capacitor (103) is detected, the electromagnet (410) in the unlocking shell (401) is powered off, the movable frame (302) is retracted into the movable shell (112), the connection of the terminal (107) is disconnected, and the connection of the power taking wire (111) and the capacitor (103) is blocked.

Description

Fixing device for pole-mounted circuit breaker and using method thereof Technical Field The invention relates to the technical field of pole-mounted circuit breakers, in particular to a pole-mounted circuit breaker fixing device and a using method thereof. Background The pole-mounted circuit breaker is outdoor high-voltage switch equipment arranged on a telegraph pole, is mainly used for sectioning, fault isolation and load control of a distribution line, and is one of core protection equipment of a distribution network. Because the pole-mounted circuit breaker is arranged on an outdoor telegraph pole, low-voltage commercial power cannot be accessed generally, and the electricity taking capacitor becomes a main power supply solution. The high-voltage power supply circuit converts high-voltage power into low-voltage power suitable for a circuit breaker control loop through coupling electric field energy of a high-voltage line, and ensures normal operation of functions such as opening and closing operation, fault detection, signal transmission and the like of the circuit breaker. The existing pole-mounted circuit breaker also has the following problems: 1. The fixed structure of the current pole-mounted circuit breaker electricity taking capacitor only realizes capacitor installation in a single fixed mode, looseness and displacement are easy to occur under complex environments such as outdoor strong wind, vibration and the like, and a prepositioning guide structure is not used during capacitor installation, so that the installation alignment difficulty is high, and the assembly efficiency and the connection stability are influenced; 2. The traditional conductive connection of the electricity taking capacitor and the circuit breaker adopts a bolt fastening or welding mode, so that the operation is complex, and when the capacitor is damaged, the capacitor and a circuit are in a connection state, so that high voltage is easy to enter the equipment box body, and secondary equipment is burnt; 3. the driving system of the existing device adopts independent power sources to respectively control the lifting and conductive connection actions of the capacitor, and power supply or hydraulic equipment is required to be additionally arranged, so that the adaptability is poor and the operation is complicated; therefore, it is necessary to provide a pole-mounted circuit breaker fixture and a method of using the same to solve the above-mentioned problems. Disclosure of Invention In view of the above, the present invention provides a fixing device for a pole-mounted circuit breaker and a method for using the same, which solve the above-mentioned problems in the prior art. The technical scheme includes that the novel capacitive touch screen comprises a box body, lifting assemblies are arranged in two sides of the box body, fixing sleeves are connected in an up-down sliding mode in the lifting assemblies, capacitors are placed at the tops of the fixing sleeves, positioning bosses are connected to two sides of the outer wall of each capacitor, mounting grooves matched with the positioning bosses are formed in two sides of each fixing sleeve, a pre-fixing assembly is arranged on one side of each mounting groove, clamping assemblies for fixing the outer wall of each capacitor are arranged in the fixing sleeves, supporting seats below the fixing sleeves are connected in the box body, and conical surfaces matched with the clamping assemblies are arranged at the tops of the supporting seats; The top of electric capacity is connected with the terminal, the top of electric capacity is connected with the casing, go up the casing in-connection and be connected with the conducting rod, sliding connection has movable housing and coupling assembling on the outer wall of conducting rod, coupling assembling cooperatees with the terminal, the top of box is connected with the circuit breaker, be connected with between circuit breaker and the conducting rod and get the electric wire. Further, the lifting assembly comprises a rotating sleeve which is connected above the supporting seat in a rotating mode, the rotating sleeve is externally connected with a rotating driving structure, a spiral sliding groove is formed in the inner wall of the rotating sleeve, the fixed sleeve is connected in the rotating sleeve in a sliding mode, a sliding pin located in the sliding groove is connected to the outer wall of the fixed sleeve, a spline rod which extends into the supporting seat is connected to the bottom of the fixed sleeve, and the spline rod is connected with the supporting seat in a sliding mode. Further, a plane groove corresponding to the mounting groove is formed in the outer wall of the fixed sleeve, the pre-fixing assembly comprises a limiting claw rotationally connected to the plane groove, the bottom of the limiting claw is connected with the plane groove through a spring, an inclined plane is formed in the top of the limiting claw, a ring