Supporting fork structure with U-shaped opening

Abstract

The U-shaped opening supporting fork structure comprises a U-shaped opening supporting fork structure body and a supporting pipe bearing, and is characterized in that the two sides of an opening of the U-shaped opening supporting fork structure body are divided into a left opening push arm and a right opening push arm; and the left opening push arm and the right opening push arm push the limiting lug columns at the two sides above the moving contact of the fuse tube, so that the moving contact of the fuse tube is pushed out from the static contact groove, and the intelligent opening operation is completed. When the fuse tube is opened to the bottom, rebound (rebounding) force is often generated, and at the moment, the left opening push arm and the right opening push arm just block the two sides of the fuse tube, so that the fuse tube cannot jump out of the supporting fork opening; the left opening push arm and the right opening push arm are of a splayed opening structure, when a new fuse needs to be replaced, the fuse tube is manually taken down from the high altitude without any blocking, and the fuse tube can be conveniently and easily taken out from a hanging mortar of the fuse to replace the new fuse; and the fuse tube with a new fuse wire replaced can be conveniently put back to the hanging mortar by manually picking up the fuse tube with an operating rod, and the splayed opening structure plays a guiding role, so that the fuse tube can be accurately and conveniently put back to the hanging mortar. The U-shaped bottom of the opening supporting fork structure is provided with a supporting pipe bearing, and the supporting pipe bearing supports the pipe wall of the fuse pipe to slide upwards during switching-on operation and drives the fuse pipe to rotate upwards until the moving contact support of the fuse pipe slides into the static contact groove, so that automatic switching-on operation is completed.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of power automation and intelligence, and particularly relates to a U-shaped opening fork structure for automatically opening and closing the fuse tube of an intelligent drop-out fuse. BACKGROUND

[0002] The U-shaped opening fork structure is applied to the automatic opening and closing operation of the intelligent drop-out fuse, and is particularly convenient when the fuse tube is taken down from the high air for replacing the fuse, and is not blocked, and is more convenient when the fuse tube is put back into the hanging hole of the fuse after replacing the new fuse. SUMMARY

[0003] The U-shaped opening fork structure is characterized in that the U-shaped bottom of the opening fork structure is designed with a tube bearing, and when the opening fork structure is operated to close, the tube bearing slides the tube wall of the fuse tube upward, and simultaneously drives the fuse tube to rotate upward until the moving contact of the fuse tube is slid into the recess of the static contact to complete the automatic closing operation. Further, the two sides of the opening of the U-shaped opening fork structure are designed as a left opening push arm and a right opening push arm, and when the fuse is operated to open, the left and right opening push arms push the limiting ear columns on the two sides of the moving contact of the fuse tube to push the moving contact of the fuse tube out of the recess of the static contact to complete the intelligent opening operation. When the fuse tube is opened to the bottom, a rebound (rebound) force is often generated, and at this time, the left opening push arm and the right opening push arm are just blocked on the two sides of the fuse tube, so that the fuse tube cannot jump out of the fork opening, and the U-shaped opening fork structure is very stable in use. Further, the left opening push arm and the right opening push arm are in an eight-shaped opening structure, and when the new fuse needs to be replaced, the fuse tube can be conveniently and easily taken out of the hanging hole of the fuse for replacing the new fuse without any blockage, and the fuse tube with the replaced new fuse can be conveniently put back into the hanging hole by the operation rod, and the eight-shaped opening structure plays a guiding role and is conducive to accurately and conveniently putting the fuse tube back into the hanging hole. BRIEF DESCRIPTION OF DRAWINGS Figure 1 The figure is a schematic view of the U-shaped opening fork structure and the static contact. In the figure, 1 is a hand hook, 2 is a U-shaped opening fork structure, 3 is a fuse tube holding rod, 4 is a fuse tube, 5 is a swing arm, 6 is a clutching rotary disc, 7 is a tube bearing, 8 is a limiting ear column, 9 is a moving contact, 10 is an opening push arm, 11 is a fuse static contact, 12 is a tube bearing, 13 is a fuse tube holding rod sleeve head, and 14 is a rivet. Figure 2 is a schematic diagram of a U-shaped opening fork structure of the present application. In the figure: 21. Hand hook; 22. Fuse tube holding rod sleeve head; 23. Holding pipe bearing; 24. Eight-shaped opening of U-shaped opening fork structure; 25. Left split gate push arm; 26. Right split gate push arm. DETAILED DESCRIPTION In Figure 1 In the schematic diagram of the U-shaped opening fork structure and the static contact of the present application, (2) is the U-shaped opening fork structure; the fork structure is sleeved on the top of the fuse tube holding rod (3) in a tight fit manner, when the clutching rotary disc (6) rotates forward, the swing arm (5) moves upward, at this time, the holding pipe bearing (7) on the U-shaped opening fork structure (2) holds the fuse tube (4) upward and slides, until the moving contact (9) of the fuse tube (4) is pushed into the groove of the static contact (11), and the automatic closing operation of the intelligent fuse is completed. When the fuse operates to open, the clutching rotary disc (6) is reversed with the motor, and the fuse tube holding rod (3) and the U-shaped opening fork (2) are also pulled in the reverse direction, at this time, the split gate push arms (10) on both sides of the U-shaped opening fork (2), namely the left split gate push arm (25) and the right split gate push arm (26) in the figure, push the limiting ear column (8) on the moving contact (9) of the fuse tube, and the moving contact (9) of the fuse tube is pushed out of the groove of the static contact (11), and the automatic opening operation of the intelligent fuse is completed. Figure 2 When the fuse operates to open, the clutching rotary disc (6) is reversed with the motor, and the fuse tube holding rod (3) and the U-shaped opening fork (2) are also pulled in the reverse direction, at this time, the split gate push arms (10) on both sides of the U-shaped opening fork (2), namely the left split gate push arm (25) and the right split gate push arm (26) in the figure, push the limiting ear column (8) on the moving contact (9) of the fuse tube, and the moving contact (9) of the fuse tube is pushed out of the groove of the static contact (11), and the automatic opening operation of the intelligent fuse is completed. Figure 2 The U-shaped opening fork structure of the present application is characterized in that: the fork structure of the present application is in an eight-shaped opening structure, the two sides of the opening of the fork are provided with a left split gate push arm (25) and a right split gate push arm (26), the left split gate push arm (25) and the right split gate push arm (26) are in an eight-shaped opening, when the opening operation is performed, after the fuse tube (4) is pushed out of the groove of the static contact (11), with the continuous split gate pushing force, the fuse tube (4) will be turned over, the head thereof continues to open to the bottom, at this time, the fuse tube (4) will generate a rebound (jump) force, and Figure 2 the left split gate push arm (25) and the right split gate push arm (26) in the figure are just located on both sides of the fuse tube (4), which will block the fuse tube (4) from jumping out of the fork opening of the U-shaped opening fork structure (2), and play a role in preventing the fuse tube from jumping out; the opening of the U-shaped opening fork structure (2) is in an eight-shaped shape, after the fuse is replaced, the fuse tube is manually picked up by the operating rod, and the high-altitude return to the hanging hole of the fuse can be used as a track, which plays a guiding role, and is more convenient, easy, and efficient to use.

Claims

1. A U-shaped open support fork structure, comprising a U-shaped open support fork structure and a support bearing, characterized in that: In Figure 1, the opening of the U-shaped opening support fork structure (2) is V-shaped; the U-shaped opening support fork structure (2) is installed on the upper end of the fuse tube support rod (3) by means of a tight fit through the fuse tube support rod head (12); and is riveted with rivets; in Figure 2, the V-shaped opening is divided into a left tripping push arm (25) and a right tripping push arm (26).

2. According to claim 1, in Figure 1, a support bearing (12) is installed between the bottom of the U-shaped opening and the fuse tube rod assembly head (13). The support bearing (12) is fixed to the U-shaped opening support structure by means of pins or screws.

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