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CN-121983459-A - Secondary fuses on-column circuit breaker with safeguard function

CN121983459ACN 121983459 ACN121983459 ACN 121983459ACN-121983459-A

Abstract

The invention discloses a secondary fusion on-column circuit breaker with a protection function, which relates to the technical field of circuit breakers and comprises a circuit breaker body, wherein two sides of the circuit breaker body are respectively and fixedly connected with support frames, sliding holes are respectively formed in the two support frames, mounting frames are respectively arranged on the two support frames, protection mechanisms are arranged on the two mounting frames, a first blowing mechanism is arranged between the protection mechanisms and the mounting frames, and a second blowing mechanism is arranged between the protection mechanisms and the mounting frames. This breaker on secondary fuses post with safeguard function sets up the support frame on the isolation frame of both sides on the circuit breaker body, installs the mounting bracket on the support frame, sets up top cap and guard bar in the top of two mounting brackets, utilizes the cooperation of top cap and guard bar to protect the lateral part of circuit breaker body, avoids factors such as blowing so that debris cards such as branch, convenience bag are on the circuit breaker body, excellent in use effect.

Inventors

  • LIN BEILEI
  • CHEN BINBIN
  • CHEN RUOGU
  • XU XUHAO
  • ZHENG SHAOQIU
  • CHEN LIJIN

Assignees

  • 浙江东高电气有限公司

Dates

Publication Date
20260505
Application Date
20260225

Claims (8)

  1. 1. The secondary fuses on-column circuit breaker with the protection function is characterized by comprising a circuit breaker body (1), wherein two sides of the circuit breaker body (1) are fixedly connected with support frames (2) respectively, sliding holes (44) are formed in the two support frames (2) respectively, mounting frames (7) are mounted on the two support frames (2) respectively, protection mechanisms (3) are arranged on the two mounting frames (7), a first blowing mechanism (4) is arranged between the protection mechanisms (3) and the mounting frames (7), a second blowing mechanism (5) is arranged between the protection mechanisms (3) and the mounting frames (7), a fixing mechanism (6) is arranged below the circuit breaker body (1), and a plurality of mounting holes (45) are formed in the support frames (2).
  2. 2. The secondary fused on-column circuit breaker with protection function according to claim 1, wherein the protection mechanism (3) comprises two groups of outer telescopic cylinders (8) and two groups of first springs (9) which are respectively and fixedly connected to two mounting frames (7), top covers (10) are fixedly connected to the top ends of the two groups of first springs (9), two groups of inner telescopic cylinders (11) are fixedly connected to the bottom of the top covers (10), the bottom ends of the two groups of inner telescopic cylinders (11) are movably sleeved to inner cavities of the two groups of outer telescopic cylinders (8) respectively, the side surfaces of the inner telescopic cylinders (11) are attached to the inner walls of the outer telescopic cylinders (8), vent holes (12) are formed in the bottom surfaces of the mounting frames (7) and are positioned right below the outer telescopic cylinders (8), a plurality of protection rods (17) are arranged on the side portions of the bottom surfaces of the top covers (10), two pull columns (13) are respectively and movably connected to the bottoms of the mounting frames (7) and are provided with through holes (14), the bottoms of the two pull columns (13) are movably sleeved to the inner cavities (14), and the two through holes (16) of the inner cavities (44) are provided with long nuts (15).
  3. 3. The secondary fusion on-pole circuit breaker with protection function according to claim 2, wherein two hanging brackets (18) are fixedly connected to the bottom of the circuit breaker body (1), a fixed box (19) is fixedly connected to the bottom ends of the two hanging brackets (18), a plurality of second springs (20) are fixedly connected to the inner wall of the fixed box (19), movable blocks (21) are fixedly connected to the ends of the second springs (20), one ends of the movable blocks (21) extend to the outside of the fixed box (19) and are fixedly connected with a fixed plate (22), a guide slope angle (23) is arranged at the top end of the fixed plate (22), an arc-shaped clamping groove (24) is formed in the bottom end of the fixed plate (22), a long bolt (15) is sleeved in an inner cavity of the arc-shaped clamping groove (24), a pull rod (25) is fixedly connected to the other end of the movable block (21), the end of the pull rod (25) is movably sleeved to the outside of the fixed box (19) and is fixedly connected with a limit post (26), and one end of the limit post (26) is fixedly connected with a pull ring (27).
  4. 4. The secondary fusion on-pole circuit breaker with protection function according to claim 1, wherein the first blowing mechanism (4) comprises a first piston cylinder (28) fixedly connected to the top surface of a mounting frame (7) and a first piston rod (30) fixedly connected to the bottom surface of a top cover (10), the bottom end of the first piston rod (30) is movably sleeved to the inner cavity of the first piston cylinder (28) and fixedly connected with a first piston block (29), the side surface of the first piston block (29) is attached to the inner wall of the first piston cylinder (28), two air vents (31) are arranged on the side part of the bottom end of the first piston cylinder (28), a first one-way valve (32) is fixedly sleeved on the outer side of the top end of the first piston cylinder (28), a second one-way valve (33) is fixedly sleeved on the inner side of the top end of the first piston cylinder (28), an air guide steel pipe (34) is fixedly connected to the bottom end of the air guide steel pipe (34), and a first air pipe (35) is fixedly connected to the bottom end of the second one-way valve, and a plurality of first air vents (36) are arranged on the side of the first air pipes (35).
  5. 5. The secondary fusion on-pole circuit breaker with protection function according to claim 1, wherein the second blowing mechanism (5) comprises a second piston cylinder (37) fixedly connected to the top surface of the other mounting frame (7) and a second piston rod (39) fixedly connected to the bottom surface of the top cover (10), the bottom end of the second piston rod (39) is movably sleeved to the inner cavity of the second piston cylinder (37) and fixedly connected with a second piston block (38), the side surface of the second piston block (38) is attached to the inner wall of the second piston cylinder (37), a third one-way valve (40) is fixedly sleeved on the outer side of the bottom end of the second piston cylinder (37), a fourth one-way valve (41) is fixedly sleeved on the inner side of the bottom end of the second piston cylinder (37), a second air blowing pipe (42) is fixedly sleeved at the end of the fourth one-way valve (41), and a plurality of second air blowing holes (43) are formed in the side portion of the second air blowing pipe (42).
  6. 6. The secondary fusion on-pole circuit breaker with the protection function according to claim 1, wherein a plurality of studs (46) are fixedly connected to the bottom surface of the mounting frame (7), the bottom ends of the studs (46) respectively penetrate through the mounting holes (45) to extend to the bottom of the supporting frame (2), and a first nut (47) is arranged in a threaded manner.
  7. 7. A secondary fused on-pole circuit breaker with protection as in claim 3 wherein the outer diameter of the long bolt (15) is equal to the inner diameters of the through hole (14) and the arc-shaped clamping groove (24) respectively.
  8. 8. The secondary fusion on-pole circuit breaker with the protection function according to claim 3, wherein the side face of the movable block (21) is attached to the inner wall of the fixed box (19), and the other end of the limiting column (26) is attached to the outer side face of the fixed box (19).

Description

Secondary fuses on-column circuit breaker with safeguard function Technical Field The invention relates to the technical field of circuit breakers, in particular to a secondary fusion on-column circuit breaker with a protection function. Background The secondary fused on-column circuit breaker is outdoor distribution equipment with high integration of traditional high-voltage switch equipment and intelligent control, measurement, protection and other automatic functions, and is mainly used for line control and protection of medium-voltage distribution networks of 10kV, 35kV and the like. The method breaks through the mode that the traditional primary equipment and the traditional secondary equipment are respectively different in manufacturer, independent in installation and interface mismatch, realizes standardized and integrated design of software and hardware, and remarkably improves the distribution automation level and the operation and maintenance efficiency. The existing circuit breaker on the secondary fusion column with the protection function is directly exposed outside, when being influenced by natural factors such as wind power, sundries such as branches, convenience bags and the like can be possibly attached to the circuit breaker, the operation of the circuit breaker can be influenced, in addition, the circuit breaker can be attached with dust outdoors for a long time, the dust can reduce the insulation performance, short circuit or flashover is caused, the heat dissipation efficiency is influenced, the problems of ageing ‌ and the like of an accelerating element are solved, the existing ash removal operation needs to be carried out by manpower in a ascending mode, the convenience is poor, and therefore the circuit breaker on the secondary fusion column with the protection function is provided. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a secondary fusion on-column circuit breaker with a protection function, and solves the problems in the background art. The secondary fusion on-column circuit breaker with the protection function comprises a circuit breaker body, wherein two sides of the circuit breaker body are fixedly connected with supporting frames respectively, sliding holes are formed in the two supporting frames respectively, mounting frames are mounted on the two supporting frames respectively, protection mechanisms are arranged on the two mounting frames, a first blowing mechanism is arranged between the protection mechanisms and the mounting frames, a second blowing mechanism is arranged between the protection mechanisms and the mounting frames, a fixing mechanism is arranged below the circuit breaker body, and a plurality of mounting holes are formed in the supporting frames. Optionally, protection machanism is including two sets of outer telescopic tube and the two sets of first springs of fixed connection on two mounting brackets respectively, two sets of equal fixedly connected with top cap in the top of first spring, the bottom surface fixedly connected with of top cap is two sets of interior telescopic tube, two sets of the bottom of interior telescopic tube is the activity respectively cup joints to the inner chamber of two sets of outer telescopic tube, the side of interior telescopic tube is laminated with the inner wall of outer telescopic tube, the bottom surface of mounting bracket just is located and is provided with the air vent under the outer telescopic tube, the lateral part of top cap bottom surface is provided with a plurality of guard bars, the bottom surface fixedly connected with of top cap draws the post, two draw the post and cup jointed to the bottom of mounting bracket respectively and offered the perforation, draw the post to run through the inner chamber of slide opening, two the inner chamber cover of perforation is equipped with the stock, the second nut is installed to the tip screw thread of stock. Optionally, the bottom fixedly connected with two gallows of circuit breaker body, two the bottom fixedly connected with fixed box of gallows, the inner wall fixedly connected with of fixed box is a plurality of second springs, and is a plurality of the tip fixedly connected with movable block of second spring, the one end of movable block extends to the outside of fixed box and fixedly connected with fixed plate, the top of fixed plate is provided with the direction slope angle, the bottom of fixed plate is provided with the arc draw-in groove, the inner chamber at the arc draw-in groove is established to the long bolt cover, the other end fixedly connected with pull rod of movable block, the tip activity of pull rod cup joints to the outside of fixed box and fixedly connected with spacing post, the one end fixedly connected with pull ring of spacing post. Optionally, the first mechanism of blowing includes a first piston section of thick bamboo of fixed connection at a mounting bracket top surface and the first pis