CN209447727U - A kind of waterproof electric knife switch of magnetic connection - Google Patents

Abstract

The utility model discloses a kind of waterproof electric knife switchs of magnetic connection, are related to electric knife switch technical field, solve electric knife switch waterproof and prepare the problems such as high-power.It includes insulative water-proof shell, U-shaped handle, two pieces of conductive plates, insulating guide rail, active copper guide card；The identical boss of two height is arranged in insulative water-proof shell front plate inner wall, and the groove of fixed conductive plate is respectively set in two boss top surfaces, and a boss connects an insulating guide rail；U-shaped card mouth, other end external connection electric wire is arranged in the equal one end of two conductive plates；Active copper guide card one end and the U-shaped card mouth of a conductive plate are hinged, and the other end has an internal magnet；U-shaped handle bipod is fixed on the front plate and backplate of insulative water-proof shell.The electric knife switch is fully sealed, and waterproof performance is good, by high current, can prepare powerful electric knife switch；This waterproof electric knife switch structure is simple, low in cost.

Description

A kind of waterproof electric knife switch of magnetic connection

Technical field

The utility model relates to electric knife switch technical fields, have water-proof function more particularly, to a kind of magnetic connection Electric knife switch.

Background technique

Electric knife switch on the market is made of plug-in strip, cutter holder and nonmetallic knife handle, chassis now, structure letter It is single, it is easy to use, in being widely used in electric line for low capacity.

But since the main elements such as the plug-in strip of these electric knife switchs, cutter holder all expose in air, chance water, It is easy short circuit in case of wet, operation or cannot work in a humid environment under water, and the blade contact area of these switches It is smaller, can not be by high current, power is smaller, thus is unable to satisfy some special installations to the powerful requirement of electric knife switch.

Summary of the invention

In order to solve the deficiency of above-mentioned electric knife switch, the utility model provides a kind of waterproof electric knife switch of magnetic connection Switch, the electric knife switch are fully sealed, and good water-proof effect can prepare powerful electric knife switch.

The technical scheme adopted by the utility model is a kind of waterproof electric knife switch of magnetic connection comprising band skirt The insulative water-proof shell on side, the handle for being provided with external magnet, one end connecting lead wire other end open up U-shaped card mouth the first conductive plate and Second conductive plate, arc insulating guide rail, be provided with the active copper guide card of internal magnet；The front plate inner wall of the insulative water-proof shell The identical boss of two height is set, and boss and front plate are integrally formed and groove is arranged in top surface, fix peace respectively in groove Fill the first conductive plate and the second conductive plate；Boss where first conductive plate connects one close to U-shaped card mouth end and omits than its height High insulating guide rail, insulating guide rail and boss, front plate are integrally formed, and U-shaped card mouth and the active copper guide card of the second conductive plate are It is hinged；U-shaped handle is straddled in the back of insulative water-proof shell, bipod be rotatably set to respectively insulative water-proof shell front plate and On backplate, handle can be rotated by axis of the line of its two fixed point.

Further, the active copper guide card is straight smooth, and edge is round and smooth, and the insulating guide rail is arc smooth flat , and far from boss end protrusion, such design blocks the rotation of active copper guide card smoothly not, and prevents active copper guide card de- From guide rail.

Further, the width of the two conductive plate U-shaped card mouths is matched with the thickness of active copper guide card, so that active copper Guide card can just be inserted among U-shaped card mouth, and make two surfaces of active copper guide card just close with the inner surface of U-shaped card mouth Contact, increases its contact area, can pass through high current.

Further, the depth of the groove is slightly less than the thickness that conductive plate is embedded to U-shaped card lip piece therein, so that embedment Upper surface, the insulating guide rail top surface of lips therein are in same plane, to guarantee that active copper guide card can smoothly be inserted into first Among the U-shaped card mouth of conductive plate.

Further, the lips for not being embedded to groove of the U-shaped card mouth of first conductive plate is bent outwardly into arcuation, to guarantee Active copper guide card can be smoothly inserted among the U-shaped card mouth of the first conductive plate.

Further, spring pressuring plate is fixedly installed in the described first conductive plate top surface, applies to the U-shaped card lip piece of the first conductive plate With pressure, contact the inner surface of its bayonet with two surfaces of active copper guide card even closer.

Further, the external magnet is corresponding to the position of internal magnet and magnetic attracting, and handle is driven when rotating Active copper guide card rotates synchronously.

Since the electric arc generated when active copper guide card is contacted or disconnected with the first conductive plate can damage switch element, so The arc-extinguishing gas such as sulfur hexafluoride or nitrogen are filled in insulative water-proof shell, reduce the influence of electric arc.

The utility model has the advantages that: being made entire by magnetic connection type it is not necessary that connecting hole is arranged on shell Electric knife switch is fully sealed, and waterproof performance is good；First, second conductive plate is designed using U-shaped card mouth, and is made in bayonet Surface allows this electric knife switch by high current with active copper guide card intimate surface contact to increase its contact area, can To prepare powerful electric knife switch；The configuration of the present invention is simple, it is low in cost.

Detailed description of the invention

The present invention will be further described with reference to the accompanying drawings and examples:

Fig. 1 is the structural schematic diagram of this switch；

Fig. 2 is the schematic diagram of internal structure that this switch is splitted along line A-A；

Fig. 3 is the schematic diagram of internal structure of this switch insulation waterproof cover；

Fig. 4 is the schematic diagram of internal structure that this switch is splitted along line B-B

Fig. 5 is this switch activity copper guide card and two conductive plate connection schematic diagrams.

In five width figures: 1, insulative water-proof shell；2, handle；3, external magnet；4, front plate；5, inner stationary shaft；6, it first leads Battery plate；7 internal magnets；8, insulating guide rail；9, the second conductive plate；10, the first groove；11, the second groove；12, active copper guide card； 13, lips;14, spring pressuring plate.

Specific embodiment

The utility model is described in further detail with the following Examples.

As shown in Fig. 1-5: a kind of waterproof electric knife switch of magnetic connection comprising the insulative water-proof shell 1 with skirt is set It is equipped with the handle 2 of external magnet 3, one end connecting lead wire other end opens up the first conductive plate 6 and the second conductive plate 9, arc of U-shaped card mouth The insulating guide rail 8 of shape, the active copper guide card 12 for being provided with internal magnet 7；4 inner wall of the front plate setting two of the insulative water-proof shell 1 The identical boss of a height, boss and front plate 4 are integrally formed and groove is arranged in top surface, and it is conductive that groove 10 is fixedly mounted first The second conductive plate 9 is fixedly mounted in plate 6, groove 11；Boss where first conductive plate 6 connects one than it close to U-shaped card mouth end Highly slightly higher insulating guide rail 8, insulating guide rail 8 and boss, front plate 4 are integrally formed, the U-shaped card mouth of the second conductive plate 9 and work Dynamic copper guide card 12 is hinged, specific structure are as follows: in two pieces of lips of U-shaped card mouth and active copper guide card 12 1 of the second conductive plate 9 End opens up aperture of the same size, and active copper guide card 12 is inserted among the U-shaped card mouth of the second conductive plate 9 with small bore end, and is led to The inner stationary shaft 5 crossed through three apertures is fixed, and active copper guide card 12 can be axis rotation with inner stationary shaft 5, and active copper is led Internal magnet 7 is arranged in the other end of piece 12；U-shaped handle 2 is straddled in the back of insulative water-proof shell 1, and it is anti-that bipod is individually fixed in insulation In the front plate 4 and backplate of water hull 1, handle 2 can be rotated by axis of the line of its two fixed point.

As shown in figure 4, the two fixing points of handle and the axle center of inner stationary shaft 5 are in same perpendicular to the anti-shell that insulate On the vertical line on 1 surface, the center of external magnet 3 and internal magnet 7 is in same perpendicular to the vertical line on anti-1 surface of shell of insulating On, and it is magnetic attracting, which ensure that handle 2 and the position of active copper guide card 12 match, external magnet 3 and internal magnet 7 Position match, to guarantee to rotate synchronously in magneticaction lower handle 2 and active copper guide card 12.

The active copper guide card 12 be it is straight smooth, insulating guide rail 8 is arc smooth flat, and far from boss end Protrusion prevents active copper guide card to be detached from guide rail.

The width of the U-shaped card mouth of two conductive plates is matched with the thickness of active copper guide card 12, so that active copper is led Piece 12 can just be inserted among U-shaped card mouth, and make two surfaces of active copper guide card 12 just tight with the inner surface of U-shaped card mouth Contiguity touching.

The width of the U-shaped card mouth of two conductive plates is matched with the thickness of active copper guide card 12, so that active copper is led Piece 12 can just be inserted among U-shaped card mouth, and make two surfaces of active copper guide card just close with the inner surface of U-shaped card mouth Contact.

The depth of the groove is slightly less than the thickness that conductive plate is embedded to U-shaped card lip piece therein.

The lips 13 of the U-shaped card mouth of first conductive plate 6 is bent outwardly into arcuation.

External lead wire can be integrally formed with conductive plate, be also possible to other connection sides such as threaded connection or screw fixation Formula.

The aperture that external lead wire passes through insulative water-proof shell side wall stretches out outside switch case, and the aperture of side wall is encapsulated with sealant To prevent entering water.

Spring pressuring plate is fixedly installed by screw in the described first conductive plate top surface, to the U-shaped card lip of the first conductive plate Piece presses, and when active copper guide card is inserted into its bayonet, contacts bayonet inner surface more with two surfaces of active copper guide card Closely.

Several through holes are set in the skirt of insulative water-proof shell 1, through hole can be passed through with screw and switch is fixed on On wall.

The arc-extinguishing gas such as sulfur hexafluoride or nitrogen are filled in insulative water-proof shell, reduce the influence of electric arc, arc-extinguishing gas is filled out It is identical as the gas fill method of usual incandescent lamp to fill method, belongs to the prior art, I will not elaborate.

As shown in Fig. 1,2,5, this switch course of work is: movable under magneticaction when stirring handle 2 and being rotated up Copper guide card 12 is rotated up and is smoothly inserted among 6 U-shaped card mouth of the first conductive plate, U-shaped card mouth inner surface and active copper guide card two Intimate surface contact realizes powering-on function；It is rotated down constantly when stirring handle 2, the active copper guide card 12 under magneticaction It rotates down and the U-shaped card mouth for deviating from the first conductive plate 6 is contacted with insulating guide rail 8, realize power down function.

The above is only the utility model preferred embodiment, is not intended to limit the utility model, all practical at this Made any modification, replacement, improvement etc. should be included within the scope of protection of this utility model within new design design.

Claims (10)

1. a kind of waterproof electric knife switch of magnetic connection comprising the insulative water-proof shell (1) with skirt is provided with external magnet (3) handle (2), one end connecting lead wire other end opens up the first conductive plate (6) and the second conductive plate (9), arc of U-shaped card mouth Insulating guide rail (8), be provided with the active copper guide card (12) of internal magnet (7)；It is characterized by: the insulative water-proof shell (1) The identical boss of two height is arranged in front plate (4) inner wall, and boss and front plate (4) are integrally formed and groove is arranged in top surface, The first conductive plate (6) and the second conductive plate (9) is fixedly mounted in two grooves respectively；Boss where first conductive plate (6) is close to U Type bayonet end connects an insulating guide rail (8) more slightly higher than its height, the U-shaped card mouth and active copper guide card of the second conductive plate (9) (12) it is hinged；U-shaped handle (2) straddles in the back of insulative water-proof shell (1), and bipod is rotatably set to insulative water-proof shell respectively (1) in front plate (4) and backplate, handle (2) can be rotated by axis of the line of its two fixed point.

2. the waterproof electric knife switch of magnetic connection according to claim 1, it is characterised in that: the active copper guide card It (12) is straight smooth.

3. the waterproof electric knife switch of magnetic connection according to claim 1, it is characterised in that: the insulating guide rail (8) It is arc smooth flat, far from boss end protrusion.

4. the waterproof electric knife switch of magnetic connection according to claim 1, it is characterised in that: two conductive plates The width of U-shaped card mouth is matched with the thickness of active copper guide card (12), so that active copper guide card (12) can just be inserted into U-shaped card mouth Centre, and two surfaces of active copper guide card (12) are just in close contact with the inner surface of U-shaped card mouth.

5. the waterproof electric knife switch of magnetic connection according to claim 1, it is characterised in that: the depth of the groove is omited Less than the thickness that conductive plate is embedded to U-shaped card lip piece therein.

6. the waterproof electric knife switch of magnetic connection according to claim 1, it is characterised in that: first conductive plate (6) lips (13) of U-shaped card mouth is bent outwardly into arcuation.

7. the waterproof electric knife switch of magnetic connection according to claim 1, it is characterised in that: the external magnet (3) with The position of internal magnet (7) is corresponding and magnetic attracting.

8. the waterproof electric knife switch of magnetic connection according to claim 1, it is characterised in that: first conductive plate (6) top surface setting spring pressuring plate (14).

9. the waterproof electric knife switch of magnetic connection according to claim 1, it is characterised in that: the insulative water-proof shell (1) internal to fill arc-extinguishing gas.

10. the waterproof electric knife switch of magnetic connection according to claim 9, it is characterised in that: the arc-extinguishing gas is Sulfur hexafluoride or nitrogen.