CN205621644U

CN205621644U - Knife switch

Info

Publication number: CN205621644U
Application number: CN201620447495.7U
Authority: CN
Inventors: 李征宇; 黄根
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-05-11
Filing date: 2016-05-11
Publication date: 2016-10-05
Anticipated expiration: 2026-05-11

Abstract

The utility model relates to a knife switch, including insulator foot, handle, movable contact sword, touch the sword support and touch the cutter holder seat on, and touch the cutter holder seat under and, the longitudinal distribution is provided with many and goes up contact plate and lower contact plate on the insulator foot, on touch the cutter holder seat and set up to be in go up on the contact plate, it sets up to touch the sword support down the contact plate leans on the upper end position, one of them end hinge of movable contact sword connects on touching the sword support, the other end is through insulating strip and handle fixed connection, transverse distribution has the insulation board on the insulator foot, be provided with the ground plate on the insulation board, under touch the cutter holder seat and set up to be in on the ground plate, the both ends of ground plate form ground connection portion respectively. The utility model discloses an after knife switch's both sides set up ground connection portion respectively for the cabinet is internal has made things convenient for ground connection more when installing and use in the complete set for a plurality of knife switch, and installer is bigger to earthing position's alternative, has improved the security simultaneously.

Description

A kind of knife-like switch

Technical field

This utility model is specifically related to a kind of knife-like switch.

Background technology

Knife-like switch is also known as knife switch or disconnecting switch, and it is the most simply to use in manual electrical equipment The most extremely wide a kind of low-voltage electrical apparatus, its Main Function is presented as following three points: 1, isolate Power supply, to guarantee the safety of circuit and maintenance of equipment；2, disjunction load, or as infrequently Load use below ground connection and disjunction rated current, as infrequently connected with breaking capacity not Big low-voltage circuit or directly initiate small-capacity motor；3, it is prone to observe judge, at knife-like switch When open position, can substantially observe, can ensure that the safety of circuit maintainer.

It is known that knife-like switch of the prior art generally comprises insulator foot, movable touch knife, sets Put the contact plate on insulator foot and the holder being arranged on contact plate and contact knife support, its One end of middle movable touch knife is hinged on contact knife support, and the other end is provided with operation handle, then work Make personnel and make movable touch knife realize agreeing with (or separation) mutually with holder by moving operation handle, To connect (or disjunction) circuit.But, knife-like switch of the prior art is owing to only existing one Earth terminal, and often simultaneously need to arrange multiple knife-like switch in the power equipment of complete cabinet, Therefore, in complete cabinet, the most each knife-like switch is independently arranged ground connection so that same There is multiple earthing position in the middle of individual complete set of equipments, and then cause the probability of imperfect earth the biggest For promoting, there is the most serious potential safety hazard.

Summary of the invention

The purpose of this utility model is to overcome the defect of prior art, it is provided that a kind of structure letter The knife-like switch single, ground connection is reliable, safety is high.

For achieving the above object, this utility model uses a kind of knife-like switch, including insulator foot, Handle, movable touch knife, contact knife support, upper contact knife holder and lower contact knife holder, described insulator foot Upper genesis analysis is provided with a plurality of upper contact plate and lower contact plate, and described upper contact knife holder is arranged on On described upper contact plate, described contact knife support is arranged on the top end position of described lower contact plate, Wherein one end of described movable touch knife is hinged on described contact knife support, the other end by insulation strip with Handle is fixing to be connected, and on described insulator foot, cross direction profiles has insulation board, and described insulation board sets Being equipped with earth plate, described lower contact knife holder is arranged on described earth plate, the two of described earth plate End forms grounding parts respectively.

As further setting of the present utility model, described grounding parts includes bolt and crimping spiral shell Mother, described bolt sequentially passes through insulator foot, insulation board and ground connection in the way of the installation of falling embedded Plate, the threaded portion that described crimping nut has with described bolt is formed threadeds.

Further arrange as of the present utility model, described insulator foot has longitudinally upward The dividing plate extended, described dividing plate is distributed between the most adjacent described lower contact plate the spacing formed The lower end position of upper and close described lower contact plate.

By technique scheme improvements over the prior art, this utility model has reached following two The remarkable result of aspect: 1, connect owing to the both sides of knife-like switch of the present utility model each have Ground portion, the most each knife-like switch is both provided with two grounding parts, when knife-like switch is applied to complete cabinet Time in the power equipment that body etc. are complex, especially at the electric power needing multiple knife-like switches to arrange In equipment, staff only need to be by one of them grounding parts of each knife-like switch and neighbouring another Any one grounding parts of individual knife-like switch is connected by wire, then at last knife-like switch Carry out on grounding parts ground connection just can, the knife-like switch of this structure greatly facilitates to be applied complete Cabinets etc. need the ground connection in the power equipment of multiple knife-like switches to arrange, it is seen that, this practicality is new Type can effectively reduce ground connection quantity and the position of complete cabinet, and then reduces the peaces such as imperfect earth Full hidden danger, greatly improves the safety in utilization of power equipment；2, due in each two phase It is provided with dividing plate so that external conductive plate is fixing with lower contact plate to be connected between adjacent lower contact plate After, unlikely cause external conductive plate to offset because of factors such as the installation of external load or gravity, And then make the spacing between the external conductive plate of every phase keep consistent, improve reliability and stablize Property.

Accompanying drawing explanation

Fig. 1 is the schematic perspective view of knife-like switch in this utility model.

Detailed description of the invention

As it is shown in figure 1, the present embodiment uses a kind of knife-like switch, including insulator foot 1, handle 2, movable touch knife 3, contact knife support 4, upper contact knife holder 5 and lower contact knife holder 6, described insulation On base 1, genesis analysis is provided with a plurality of upper contact plate 10 and lower contact plate 11, described tactile Cutter holder base 5 is arranged on described upper contact plate 10, described contact knife support 4 be arranged on described under The top end position of contact plate 11, wherein one end of described movable touch knife 3 is hinged on described contact knife On support 4, the other end is formed a fixed connection with handle 2, at the bottom of described insulation by insulation strip 7 On seat 1, cross direction profiles has insulation board 8, and described insulation board 8 is provided with earth plate 9, described Lower contact knife holder 6 is arranged on described earth plate 9, and the two ends of described earth plate 9 are formed respectively Grounding parts 90.In the present embodiment, described grounding parts 90 includes bolt (the present embodiment attached Figure does not gives mark) and crimping nut 901, described bolt in the way of the installation of falling embedded successively Through insulator foot 1, insulation board 8 and earth plate 9, described crimping nut 901 and described spiral shell The threaded portion that bolt has is formed threaded.

Show have on described insulator foot 1 and extend longitudinally upward by Fig. 1 further Dividing plate 1100, described dividing plate 1100 is distributed between the most adjacent described lower contact plate 11 In the spacing formed and near the lower end position of described lower contact plate 11.

Of the present utility model ultimate principle and principal character and advantage have more than been shown and described. Skilled person will appreciate that of the industry, this utility model is not restricted to the described embodiments, on State and principle of the present utility model is simply described, without departing from this described in embodiment and description On the premise of utility model spirit and scope, this utility model also has various changes and modifications, In the range of these changes and improvements both fall within claimed this utility model.This utility model is wanted The protection domain asked defines according to appended claim and equivalent thereof.

Claims

1. a knife-like switch, including insulator foot, handle, movable touch knife, contact knife support, on Contact knife holder and lower contact knife holder, on described insulator foot, genesis analysis is provided with a plurality of upper contact Plate and lower contact plate, described upper contact knife holder is arranged on described upper contact plate, and described contact knife props up Frame is arranged on the top end position of described lower contact plate, and wherein one end of described movable touch knife is hinged on On described contact knife support, the other end is connected by insulation strip and handle are fixing, it is characterised in that: On described insulator foot, cross direction profiles has insulation board, and described insulation board is provided with earth plate, institute Stating lower contact knife holder to be arranged on described earth plate, the two ends of described earth plate form ground connection respectively Portion.

A kind of knife-like switch the most according to claim 1, it is characterised in that: described ground connection Portion includes bolt and crimping nut, and described bolt sequentially passes through insulation in the way of the installation of falling embedded Base, insulation board and earth plate, the threaded portion that described crimping nut and described bolt have is formed Threaded.

A kind of knife-like switch the most according to claim 1 and 2, it is characterised in that: described Having the dividing plate extended longitudinally upward on insulator foot, described dividing plate is distributed in described the most adjacent In the spacing formed between lower contact plate and near the lower end position of described lower contact plate.