CN214152731U

CN214152731U - Switching device for direct current switching circuit

Info

Publication number: CN214152731U
Application number: CN202022692433.1U
Authority: CN
Inventors: 闫丹; 刘明新; 田子耕
Original assignee: Xi'an Haoyue Tengfei Iot Technology Co ltd
Current assignee: Xi'an Haoyue Tengfei Iot Technology Co ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-09-07
Anticipated expiration: 2030-11-19

Abstract

The utility model discloses a switching device for direct current switch circuit, including the box body, the inside top of box body is provided with the wiring mechanism, and the inside of box body is provided with switching mechanism, the beneficial effects of the utility model are that: prevent the elliptic cylinder from changeing the piece gyration when the circuit breaks off through spacing groove and inserted bar, avoid the closed personnel casualties that leads to of switch error, when needing to cut off DC power supply and overhaul, toggle switch pole at first, the switch pole drives the elliptic cylinder and changes the piece and rotate, the elliptic cylinder changes the piece and drives the conducting rod and break away from and lead the contact of electrical pillar with two, the rotary bolt, when the inserted bar slides and gets into in the slot, the stopper of inserted bar both sides gets into the spacing groove on slot surface, the inserted bar can't rotate under the spacing groove effect this moment, consequently, the elliptic cylinder changes the piece and also can't rotate, prevent that the switch error is closed, only when the plug-in switch-off condition, the stopper just can align with the spacing groove.

Description

Switching device for direct current switching circuit

Technical Field

The utility model relates to the technical field of circuits, specifically be a switching device for direct current switch circuit.

Background

The direct current switch is also called a direct current fast switch or a direct current fast automatic switch, is an operation and protection, and can perform switching-off and switching-on operations on a direct current motor, a rectifier unit, a direct current feeder line and the like in a circuit with a direct current rated voltage of 600-1500V.

The existing direct current switch does not have a switch-off protection structure, and needs to be switched off when maintenance is carried out, so that a maintainer can switch on by mistake when a circuit is repaired, and serious electric shock accidents occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a switching device for direct current switch circuit to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a switching device for direct current switch circuit, includes the box body, the inside top of box body is provided with the wiring mechanism, the inside of box body is provided with switching mechanism.

Preferably, the wiring mechanism includes two line holes, two the upper surface at the box body is all seted up in the line hole, the inside top side surface of box body has linked firmly two and has led electrical pillar, two the thread groove has all been seted up on the one end surface of leading electrical pillar, two the wire casing has all been seted up to the upper surface that leads electrical pillar and be close to thread groove one end, two recesses have been seted up to the side surface of box body, two the inside of recess is all pegged graft and is had the solidus nut, two the equal fixedly connected with collets in solidus nut's one end, two the terminal fixedly connected with screw post that the solidus nut was kept away from to the collets, screw post and thread groove threaded connection.

Preferably, the switch mechanism comprises two fixed blocks, the two fixed blocks are respectively fixed on the surface of the side wall in the box body, the surfaces of the two fixed blocks are both provided with a rotary groove, the same elliptic cylinder rotary block is inserted between the two rotary grooves, the elliptic cylinder rotary block is internally provided with a circular groove, both sides of the surface of the circular groove are both provided with sliding grooves, the surface of one rotary groove is provided with an inserting groove, the inner wall surface of the inserting groove is provided with two limiting grooves, the inside of the circular groove is slidably connected with an inserting rod, the side surface of the inserting rod is fixedly connected with two limiting blocks, the side wall of one rotary groove is provided with an inner groove, the surface of the inserting rod close to one end of the inner groove is provided with a threaded hole, the side surface of the box body is provided with a side groove, the surface of the side groove is provided with a through groove, the inside of the side groove is inserted with a bolt, and one end of the bolt is fixedly connected with a threaded rod, the side surface fixedly connected with conducting rod of elliptic cylinder commentaries on classics piece, one side fixed surface of elliptic cylinder commentaries on classics piece is connected with the switch lever, the switch slot has been seted up on the surface of box body, switch slot and switch lever sliding connection.

Preferably, the limiting blocks are in sliding connection with the corresponding sliding grooves and limiting grooves.

Preferably, the threaded rod is in threaded connection with the threaded hole.

Preferably, the bolt is rotatably connected with the through groove through a bearing.

Compared with the prior art, the beneficial effects of the utility model are that: prevent the elliptic cylinder from changeing the piece gyration when the circuit breaks off through spacing groove and inserted bar, avoid the closed personnel casualties that leads to of switch error, when needing to cut off DC power supply and overhaul, toggle switch pole at first, the switch pole drives the elliptic cylinder and changes the piece and rotate, the elliptic cylinder changes the piece and drives the conducting rod and break away from and lead the contact of electrical pillar with two, the rotary bolt, when the inserted bar slides and gets into in the slot, the stopper of inserted bar both sides gets into the spacing groove on slot surface, the inserted bar can't rotate under the spacing groove effect this moment, consequently, the elliptic cylinder changes the piece and also can't rotate, prevent that the switch error is closed, only when the plug-in switch-off condition, the stopper just can align with the spacing groove.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a structural appearance diagram of the present invention;

FIG. 3 is a side view of the structure of the present invention;

FIG. 4 is an enlarged view of a portion A of FIG. 1;

fig. 5 is a schematic circuit diagram of the present invention.

In the figure: 1. a box body; 2. a wiring mechanism; 21. a wire hole; 22. a conductive post; 23. a thread groove; 24. a wire slot; 25. a groove; 26. a wire fixing nut; 27. an insulating block; 28. a threaded post; 3. a switch mechanism; 31. a fixed block; 32. rotating the groove; 33. an elliptic cylinder rotating block; 34. a circular groove; 35. a chute; 36. a slot; 37. a limiting groove; 38. inserting a rod; 39. a limiting block; 310. an inner tank; 311. a threaded hole; 312. a threaded rod; 313. a through groove; 314. a side groove; 315. a bolt; 316. a conductive rod; 317. a switch slot; 318. A switch lever.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a switching device for a direct current switching circuit comprises a box body 1, wherein a wiring mechanism 2 is arranged at the top end of the inside of the box body 1, and a switching mechanism 3 is arranged inside the box body 1.

Wiring mechanism 2 includes two line holes 21, the upper surface at box body 1 is all seted up in two line holes 21, box body 1's inside top side surface has linked firmly two and has led electrical pillar 22, thread groove 23 has all been seted up on the one end surface of two and led electrical pillar 22, wire casing 24 has all been seted up on the upper surface that two are led electrical pillar 22 are close to thread groove 23 one end, two recesses 25 have been seted up to box body 1's side surface, gu the nut 26 has all been pegged graft in the inside of two recesses 25, the equal fixedly connected with collets 27 of the one end of two gu nut 26, gu the one end fixedly connected with screw post 28 of nut 26 is kept away from to two collets 27, screw post 28 and thread groove 23 threaded connection, wiring through screw post 28, high convenience and fast, need not to insert box body 1.

The switch mechanism 3 comprises two fixed blocks 31, the two fixed blocks 31 are respectively fixed on the surface of the inner side wall of the box body 1, the surfaces of the two fixed blocks 31 are both provided with a rotary groove 32, the same elliptic cylinder rotary block 33 is inserted between the two rotary grooves 32, the elliptic cylinder rotary block 33 is internally provided with a circular groove 34, the two sides of the surface of the circular groove 34 are both provided with sliding grooves 35, the surface of one rotary groove 32 is provided with an inserting groove 36, the inner wall surface of the inserting groove 36 is provided with two limit grooves 37, the inner part of the circular groove 34 is slidably connected with an inserting rod 38, the side surface of the inserting rod 38 is fixedly connected with two limit blocks 39, the side wall of one rotary groove 32 is provided with an inner groove 310, the surface of the inserting rod 38 close to the inner groove 310 is provided with a threaded hole 311, the side surface of the box body 1 is provided with a side groove 314, the surface of the side groove 314 is provided with a through groove 313, the side groove 314 is internally inserted with a bolt 315, and one end of the bolt 315 is fixedly connected with a threaded rod 312, the side surface fixedly connected with conducting rod 316 of elliptic cylinder commentaries on classics piece 33, one side fixed surface of elliptic cylinder commentaries on classics piece 33 is connected with switch lever 318, switch slot 317 has been seted up on the surface of box body 1, switch slot 317 and switch lever 318 sliding connection, switching mechanism 3 closes two electrically conductive posts 22 through conducting rod 316 and closes the effect that reaches the floodgate, when the floodgate is opened, inside inserted bar 38 of accessible and stopper 39 make elliptic cylinder commentaries on classics piece 33 fixed, prevent that the mistake from closing.

The limiting block 39 is connected with the corresponding sliding groove 35 and the limiting groove 37 in a sliding mode, so that the elliptic cylinder rotating block 33 is fixed, and error closing is prevented.

The threaded rod 312 is in threaded connection with the threaded hole 311, so as to drive the insert rod 38 to move.

The bolt 315 is rotatably coupled to the through groove 313 through a bearing, preventing the bolt 315 from moving.

Specifically, when the utility model is used and a direct current power supply needs to be cut off for maintenance, the switch rod 318 is firstly turned, the switch rod 318 drives the elliptic cylinder rotating block 33 to rotate, the elliptic cylinder rotating block 33 drives the conducting rod 316 to be separated from the contact with the two conducting posts 22, the power supply is cut off, then the bolt 315 is rotated by the screwdriver, the bolt 315 drives the threaded rod 312 to rotate, the bolt 315 can only rotate and can not move due to the limitation of the bearing, therefore, the inserted rod 38 is driven by the threaded rod 312 to slide, the inserted rod 38 can only rotate together due to the action of the limit block 39 and the sliding groove 35, when the inserted rod 38 enters the slot 36, the limit blocks 39 at the two sides of the inserted rod 38 enter the limit groove 37 on the surface of the slot 36, at the moment, the inserted rod 38 can not rotate under the action of the limit groove 37, therefore, the elliptic cylinder rotating block 33 can not rotate, the switch can not be closed by mistake, only when the switch is in an off state, the limit block 39 can be aligned with the limit groove 37, the elliptic cylinder rotating block 33 is prevented from rotating when the circuit is disconnected through the limiting groove 37 and the inserting rod 38, and casualties caused by switch failure closing are avoided.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A switching device for a direct current switching circuit comprises a box body (1), and is characterized in that a wiring mechanism (2) is arranged at the top end inside the box body (1), and a switching mechanism (3) is arranged inside the box body (1);

the wiring mechanism (2) comprises two wire holes (21), the two wire holes (21) are both arranged on the upper surface of the box body (1), the side surface of the top end in the box body (1) is fixedly connected with two conductive posts (22), the surface of one end of each of the two conductive posts (22) is provided with a threaded groove (23), the upper surface of one end of each of the two conductive posts (22) close to the threaded groove (23) is provided with a wire groove (24), two grooves (25) are formed in the side surface of the box body (1), wire fixing nuts (26) are inserted into the two grooves (25), one ends of the two wire fixing nuts (26) are fixedly connected with insulating blocks (27), one ends, far away from the wire fixing nuts (26), of the two insulating blocks (27) are fixedly connected with threaded columns (28), and the threaded columns (28) are in threaded connection with the threaded grooves (23);

the switch mechanism (3) comprises two fixed blocks (31), the two fixed blocks (31) are respectively fixed on the surface of the inner side wall of the box body (1), rotary grooves (32) are formed in the surfaces of the two fixed blocks (31), a same elliptic cylinder rotary block (33) is inserted between the two rotary grooves (32), a circular groove (34) is formed in the elliptic cylinder rotary block (33), sliding grooves (35) are formed in two sides of the surface of the circular groove (34), a slot (36) is formed in the surface of one rotary groove (32), two limiting grooves (37) are formed in the surface of the inner wall of the slot (36), an inserting rod (38) is slidably connected in the circular groove (34), two limiting blocks (39) are fixedly connected to the side surface of the inserting rod (38), an inner groove (310) is formed in the side wall of one rotary groove (32), and a threaded hole (311) is formed in the surface of one end, close to the inner groove (310), of the inserting rod (38), side groove (314) have been seted up to the side surface of box body (1), logical groove (313) have been seted up on the surface of side groove (314), the inside grafting of side groove (314) has bolt (315), the one end fixedly connected with threaded rod (312) of bolt (315), the side surface fixedly connected with conducting rod (316) of elliptic cylinder commentaries on classics piece (33), one side fixed surface of elliptic cylinder commentaries on classics piece (33) is connected with switch lever (318), switch slot (317) have been seted up on the surface of box body (1), switch slot (317) and switch lever (318) sliding connection.

2. A switching device for a dc switching circuit according to claim 1, wherein: the limiting blocks (39) are connected with the corresponding sliding grooves (35) and the limiting grooves (37) in a sliding mode.

3. A switching device for a dc switching circuit according to claim 1, wherein: the threaded rod (312) is in threaded connection with the threaded hole (311).

4. A switching device for a dc switching circuit according to claim 1, wherein: the bolt (315) is rotatably connected with the through groove (313) through a bearing.