CN220585115U - Double-throw knife switch without removing cover - Google Patents

Abstract

The utility model discloses a cover-removing-free double-throw knife switch which comprises an insulating base, wherein a protective shell is connected with two ends of the insulating base through bolts, the protective shell is provided with two groups, wire inlet grooves are respectively formed in two ends of the front end of the insulating base, the wire inlet grooves are distributed in an equidistant array mode, a knife holder is connected to the upper end of the middle of the insulating base, and a knife blade is connected to the upper end of the knife holder through a shaft. This exempt from to tear open lid double throw knife switch, through setting up load wiring structure inside with square insulating base, and can not form the bulge, reduced the volume of this double throw knife, also be convenient for install inside less switch board, the bolt hole that corresponds has been offered to power wiring and load wiring structure upper end protective housing sense simultaneously, be convenient for connect the dismantlement to the wire when protective housing installs, it is more convenient to use, cooperation two sets of pilot lamps, can judge the electrified condition of circuit more directly perceivedly accurately after the wiring.

Description

Double-throw knife switch without removing cover

Technical Field

The utility model relates to the technical field of knife switches, in particular to a double-throw knife switch without removing a cover.

Background

The knife switch is also called a knife switch or an isolating switch, and is the simplest and more widely used low-voltage electrical appliance in the manual electrical appliance; the knife switch can be divided into a single-pole knife switch, a double-pole knife switch, a three-pole knife switch and a four-pole knife switch according to the number of poles; the switch can be divided into a single-throw type knife switch, a double-throw type knife switch and the like according to a conversion mode, and normally, two ends of the double-throw switch are connected with a power line, and a middle connecting terminal is connected with a load end.

The existing double-throw knife switch as disclosed in China patent publication No. CN201435335Y comprises a base, an outer shield and at least three groups of wiring terminals, wherein the wiring terminals are fixed on the base, the outer shield is covered on the wiring terminals and is fixedly connected with the base, the wiring terminals are respectively provided with a plurality of groups of wiring terminals, and fastening screws are arranged on the wiring terminals; the device is characterized in that a square through groove is arranged above each group of terminals on the outer shield, and the square through groove penetrates through the outer shield; but current double throw knife switch load end majority is the protrusion design, can occupy more positions when the installation, and the load wiring end is protected by the casing, can't directly wire connection, just can operate after need demolising the casing, and the wiring step is loaded down with trivial details, and this knife does not set up the pilot lamp, can't effectively judge whether the circuit is electrified directly perceivedly after the wiring, still need use measuring equipment to measure.

We have therefore proposed a cover-release-free double throw knife switch in order to solve the problems set out above.

Disclosure of Invention

The utility model aims to provide a cover-removing-free double-throw knife switch, which solves the problems that the load end of the existing double-throw knife switch provided by the background technology protrudes outside, the occupied space is large, a protective shell needs to be detached when the load end is connected, the operation is complex, and meanwhile, an indicator lamp is not arranged on the double-throw knife switch, and whether a line is electrified cannot be intuitively judged.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a exempt from to tear open and cover double throw knife switch, includes insulating base:

the double-end bolt of the insulating base is connected with a protective shell, the protective shell is provided with two groups, two ends of the front end of the insulating base are respectively provided with wire inlet grooves, and the wire inlet grooves are distributed in an equidistant array;

the upper end of the middle part of the insulating base is connected with a cutter holder, the upper end of the cutter holder is connected with a blade through a shaft, and the upper end of the blade is fixedly connected with an insulating handle;

the wire inlet groove is internally fixed with a wiring terminal, the tool holder is arranged in the middle of the tool holder and the wire inlet groove, and the tool holder is connected with the insulating base through bolts.

Preferably, the lower end of the tool holder extends to the inside of the connection terminal, and the lower end of the tool holder contacts with the connection terminal, and the tool holder is electrically connected with the connection terminal.

By adopting the technical scheme, the tool holder with integrated structural design can be directly connected with the wiring terminal, so that the conduction reliability and the use stability are improved.

Preferably, the binding post mid-mounting has the pilot lamp, first bolt hole has been seted up at both ends around the protective housing, and first bolt hole lower extreme runs through to the entrance slot to first bolt hole sets up in binding post top.

By adopting the technical scheme, through the setting of pilot lamp, whether the user can judge the circuit more rapidly and accurately and electrified, also can improve vigilance and reduce the probability of electric shock, set up simultaneously first bolt hole and can be convenient for need not to dismantle protective housing to the connection of binding post with the power cord.

Preferably, the indicator lamp is symmetrically arranged on the front side and the rear side of the insulating base, the upper end of the indicator lamp is sleeved with a transparent lampshade, and the top end of the transparent lampshade penetrates through the upper end of the protective shell.

By adopting the technical scheme, the transparent lampshade is arranged to penetrate through the outside of the protective shell, so that the indicator lamp can be protected conveniently, and meanwhile, the on-off condition of the indicator lamp can be judged more intuitively.

Preferably, the second wiring groove has been seted up to insulating base left side rear end, and insulating base both sides have been seted up first wiring groove, first wiring groove and second wiring inslot portion are provided with the wiring and detain, and the wiring detain is cavity rectangle structural design to wiring detain upper end threaded connection has the terminal bolt.

By adopting the technical scheme, through the arrangement of the first wiring groove and the second wiring groove, the installation of the wiring buckle can be facilitated, so that the connection of load wiring is facilitated, meanwhile, the volume of the double-throw knife is reduced because the first wiring groove and the second wiring groove are arranged inside the insulating base, and the double-throw knife is convenient to install inside a smaller distribution box.

Preferably, the middle part of the insulating base is provided with a conducting strip, the conducting strip is connected with the lower end of the middle tool apron through bolts, the lower ends of the tool apron on two sides extend to the inside of the first wiring groove to be contacted with the wiring buckle, the conducting strip extends to the inside of the second wiring groove, the conducting strip penetrates through the inside of the wiring buckle, the lower ends of the terminal bolts are respectively contacted with the conducting strip and the lower ends of the tool apron on two sides, the upper end of the protective shell is provided with second bolt holes, and the second bolt holes are vertically arranged above the terminal bolts.

By adopting the technical scheme, the terminal bolt is conveniently rotated after the protective shell is installed through the second bolt hole, the use convenience is improved, the tool holders on the two sides directly extend to the inside of the wiring buckle, the conduction of the load wiring is more reliable, the integrated structural design adopted by the tool holders on the two sides can be directly connected with the wiring buckle, and the safety and reliability are realized.

Compared with the prior art, the utility model has the beneficial effects that: the cover-removing-free double-throw knife switch;

1. through setting up the load wiring structure with inside square insulating base to can not form the bulge, reduced the volume of this double throw knife, also be convenient for install inside the switch board of being less, corresponding bolt hole has been offered to power wiring and load wiring structure upper end protective housing sense simultaneously, be convenient for connect the dismantlement to the wire when protective housing installs, it is more convenient to use, cooperate two sets of pilot lamps, can more directly perceived accurate judgement circuit's electrified condition after the wiring, and multiunit blade holder and cutter holder adopt integrated direct structural design more, can be more direct carry out the conduction with the wiring knot and the binding post of corresponding position and connect, it is stable to switch on and the wiring firm can reliable carry out independent control to multiunit circuit;

2. through seting up first wiring groove and second wiring groove respectively in below insulating base both sides, both sides blade holder directly extends to first wiring inslot portion and is connected with the wiring knot, makes it switch on between with the load wire more stable to set up the second bolt hole in protective housing upper end and terminal bolt position corresponding, be convenient for rotate the terminal bolt after the casing installation, accomplish the connection operation of load cable, it is more convenient to use, easy operation.

Drawings

FIG. 1 is a right side view of the present utility model;

FIG. 2 is a schematic diagram of a left side view of the present utility model;

FIG. 3 is a schematic view of a tool holder and a blade according to the present utility model;

FIG. 4 is a schematic view of a second wiring slot and a wiring buckle according to the present utility model;

FIG. 5 is a schematic view of the structure of the tool holder and the conductive plate according to the present utility model;

fig. 6 is a schematic view of the structure of the terminal bolt and the wire buckle of the present utility model.

In the figure: 1. an insulating base; 2. a protective housing; 3. wire inlet groove; 4. a tool apron; 5. a blade; 6. an insulating handle; 7. a tool holder; 8. a first wiring groove; 9. a connection terminal; 10. an indicator light; 11. a transparent lampshade; 12. a first bolt hole; 13. a second wiring groove; 14. a wiring buckle; 15. a conductive sheet; 16. a terminal bolt; 17. and a second bolt hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the present utility model provides a technical solution: the double-throw knife switch without detaching the cover comprises an insulating base 1, wherein a protective shell 2 is connected with the double ends of the insulating base 1 through bolts, two groups of protective shells 2 are arranged, two ends of the front end of the insulating base 1 are respectively provided with wire inlet grooves 3, and the wire inlet grooves 3 are distributed in an equidistant array; the upper end of the middle part of the insulating base 1 is connected with a cutter holder 4, the upper end of the cutter holder 4 is connected with a blade 5 through a shaft, and the upper end of the blade 5 is fixedly connected with an insulating handle 6; a wiring terminal 9 is fixed in the wire inlet groove 3, a cutter holder 7 is arranged in the middle of the cutter holder 4 and the wire inlet groove 3, and the cutter holder 7 is connected with the insulating base 1 through bolts; the lower end of the tool holder 7 extends into the wiring terminal 9, the lower end of the tool holder 7 is in contact with the wiring terminal 9, and the tool holder 7 is electrically connected with the wiring terminal 9; through set up wire inlet slot 3 in both ends around insulating base 1 to set up binding post 9 in wire inlet slot 3 inside and be convenient for connect the power cord, cutter holder 7 and binding post 9 are through conductive structure simultaneously, switch on more stably, drive the rotation of blade 5 when stirring insulating handle 6, make blade 5 and cutter holder 7 connect back blade holder 4 and cutter holder 7 between also constitute the conduction state and electrified, correspond each other between multiunit blade 5, cutter holder 7 and the blade holder 4, can carry out independent control to the switching on of multiunit circuit, mutually different can not produce the interference between each other.

An indicator lamp 10 is arranged in the middle of the wiring terminal 9, first bolt holes 12 are formed in the front end and the rear end of the protective shell 2, the lower ends of the first bolt holes 12 penetrate through the wire inlet groove 3, and the first bolt holes 12 are arranged above the wiring terminal 9; the indicator lamps 10 are symmetrically arranged on the front side and the rear side of the insulating base 1, a transparent lampshade 11 is sleeved at the upper end of the indicator lamps 10, and the top ends of the transparent lampshade 11 penetrate through the upper end of the protective shell 2; through set up two sets of pilot lamps 10 in insulating base 1 front and back both ends, can send bright after the circuit is electrified in step for operating personnel can know the electrified condition of circuit, simultaneously because of being provided with the transparent lamp shade 11 that runs through the protection casing, can be to the protection of pilot lamp 10, when transmitting pilot lamp 10 bright, the more audio-visual judgement circuit electrified condition of being convenient for.

The rear end of the left side of the insulating base 1 is provided with a second wiring groove 13, the two sides of the insulating base 1 are provided with a first wiring groove 8, wiring buckles 14 are arranged in the first wiring groove 8 and the second wiring groove 13, the wiring buckles 14 are of hollow rectangular structural design, and the upper ends of the wiring buckles 14 are in threaded connection with terminal bolts 16; the middle part of the insulating base 1 is provided with a conducting strip 15, the conducting strip 15 is connected with the lower ends of the middle tool apron 4 through bolts, the lower ends of the tool apron 4 at two sides extend into the first wiring groove 8 to be contacted with the wiring buckle 14, the conducting strip 15 extends into the second wiring groove 13, the conducting strip 15 penetrates into the wiring buckle 14, the lower ends of the terminal bolts 16 are respectively contacted with the conducting strip 15 and the lower ends of the tool apron 4 at two sides, the upper end of the protective shell 2 is provided with a second bolt hole 17, and the second bolt hole 17 is vertically arranged above the terminal bolts 16; connect through wiring knot 14, terminal bolt 16 and conducting strip 15, both sides blade holder 4 lower extreme to accomplish to connect and switch on the load wire, both sides blade holder 4 is through conductive structure design with corresponding position wiring knot 14, thereby improves conduction stability and life, the load wiring structure sets up in insulating base 1 is inside, and terminal bolt 16 directly has seted up second bolt hole 17 above the protective housing 2, be convenient for can directly adjust terminal bolt 16 after protective housing 2 installs, thereby accomplish the connection to the load wire.

Working principle: when the cover-removing-free double-throw knife switch is used, the wire inlet groove 3 is formed in the front end and the rear end of the insulating base 1, the wiring terminal 9 is arranged in the wire inlet groove 3 so as to be convenient for connecting a power line, meanwhile, each group of knife holders 7 and the wiring terminal 9 are of a straight-through type conductive structure, the conduction is more stable, when the insulating handle 6 is stirred, the rotation of the plurality of groups of knife blades 5 is driven, after the plurality of groups of knife blades 5 are connected with the knife holders 7, a conduction state is formed between the plurality of groups of knife holders 4 and the knife holders 7 at the corresponding positions, the plurality of groups of knife holders 5, the knife holders 7, the wiring terminal 9 and the knife holders 4 are independently controlled and are not communicated with each other, and interference is avoided; two groups of indicator lamps 10 are arranged at the front end and the rear end of the insulating base 1, and can synchronously emit light after the circuit is electrified, so that operators can know the electrification condition of the circuit, and the transparent lamp shade 11 penetrating through the protective shell is arranged, so that the indicator lamps 10 can be protected, and meanwhile, the light of the indicator lamps 10 is transmitted, thereby being convenient for more intuitively judging the electrification condition of the circuit; connect through wiring knot 14, terminal bolt 16 and conducting strip 15, both sides blade holder 4 lower extreme to accomplish to connect and switch on the load wire, two sets of blade holders 4 in both sides are through conductive structure design with two sets of wiring knot 14 of corresponding position respectively, thereby improve and switch on stability and life, and the connection of second wiring groove 13 inside wiring mouth 14 connection that sets up is switched on through conducting strip 15 in the middle part blade holder 4, the load wiring structure sets up in insulating base 1 inside, and second bolt hole 17 has been seted up to position protective housing 2 directly above terminal bolt 16, be convenient for can directly adjust terminal bolt 16 after protective housing 2 installs, thereby accomplish the connection to the load wire.

To complete a series of work, and what is not described in detail in this specification is prior art that is well known to those skilled in the art.

Claims (6)

1. Exempt from to tear open and cover double throw knife switch, including insulating base (1), its characterized in that:

the double-end bolt connection of the insulating base (1) is provided with a protective shell (2), the protective shell (2) is provided with two groups, two ends of the front end of the insulating base (1) are respectively provided with wire inlet grooves (3), and the wire inlet grooves (3) are distributed in an equidistant array;

the upper end of the middle part of the insulating base (1) is connected with a cutter holder (4), the upper end of the cutter holder (4) is connected with a blade (5) through a shaft, and the upper end of the blade (5) is fixedly connected with an insulating handle (6);

the wire inlet groove (3) is internally fixed with a wiring terminal (9), the tool holder (7) is arranged in the middle of the tool holder (4) and the wire inlet groove (3), and the tool holder (7) is connected with the insulating base (1) through bolts.

2. The cover-removal-free double throw knife switch of claim 1, wherein: the lower end of the tool holder (7) extends to the inside of the connecting terminal (9), the lower end of the tool holder (7) is in contact with the connecting terminal (9), and the tool holder (7) is electrically connected with the connecting terminal (9).

3. The cover-removal-free double throw knife switch of claim 1, wherein: the utility model discloses a wire connection terminal, including binding post (9), protection shell (2), binding post (9) mid-mounting has pilot lamp (10), first bolt hole (12) have been seted up at both ends around protective housing (2), and first bolt hole (12) lower extreme runs through to inlet wire groove (3) to first bolt hole (12) set up in binding post (9) top.

4. A cover-removing-free double throw knife switch according to claim 3, wherein: the indicator lamp (10) is symmetrically arranged on the front side and the rear side of the insulating base (1), the transparent lampshade (11) is sleeved at the upper end of the indicator lamp (10), and the top end of the transparent lampshade (11) penetrates through the upper end of the protective shell (2).

5. The cover-removal-free double throw knife switch of claim 1, wherein: the novel electric wire connecting device is characterized in that a second wire connecting groove (13) is formed in the rear end of the left side of the insulating base (1), first wire connecting grooves (8) are formed in the two sides of the insulating base (1), wire connecting buckles (14) are arranged in the first wire connecting grooves (8) and the second wire connecting grooves (13), the wire connecting buckles (14) are of hollow rectangular structural design, and terminal bolts (16) are connected with the upper ends of the wire connecting buckles (14) in a threaded mode.

6. The cover-removal-free double throw knife switch of claim 5, wherein: the insulating base (1) middle part is provided with conducting strip (15), and conducting strip (15) and middle part blade holder (4) lower extreme bolted connection to inside and the wiring knot (14) contact of first wiring groove (8) are extended to both sides blade holder (4) lower extreme, conducting strip (15) extend to inside second wiring groove (13), and conducting strip (15) run through inside to wiring knot (14), terminal bolt (16) lower extreme respectively with conducting strip (15) and both sides blade holder (4) lower extreme contact, second bolt hole (17) have been seted up to protective housing (2) upper end, and second bolt hole (17) set up perpendicularly in terminal bolt (16) top.