A kind of Three-hole socket
Technical field
The present invention relates to a kind of jack technology field, specifically a kind of Three-hole socket.
Background technology
In order to improve the fail safe that socket uses, avoiding the meaning accident occurring because misoperation or child are ignorant of to get an electric shock, below the receptacle sockets of the two poles of the earth, above sleeve, how being provided with shutter; During work, two electrode plugs insert in jack, and shutter is opened, and plug and socket complete normal electrical connection.
The open one of Chinese patent literature CN2373908 presses open type socket protective door, and it adopts flip-shell principle, form covering stop and prevent from getting an electric shock, but it can not prevent one pole from inserting the electric shock caused completely to the sleeve in it.
Chinese patent literature CN2497446 discloses a kind of the two poles of the earth socket protective door assembly, when one pole inserts, shutter makes it can not contact slotting most area, the electric shock formed when one pole inserts can be stopped for anticorrisive agent, but its complex structure, reliability is low, revolves all untouchable live part of the thrust adding 1N in GB GB2099.1-2008 to the probe that two: one, 3 probes being multiplied by 1MM rotate the thrust and diameter 1MM adding 20N that requires of socket protective door; Two, for the shutter that anti-one pole inserts and design should be able to bear the single latch insertion force being greater than 75N.Above-mentioned operator guards still exists in the excessive danger causing electric shock of insertion force.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of Three-hole socket, security reliability can be played and prevent from getting an electric shock.
The present invention describes a kind of Three-hole socket; comprise drain pan; and drain pan is fixed with face-piece; wherein face-piece is provided with lock pin; be provided with the shutter along drain pan internal shift in drain pan, shutter is divided into the first shutter, the second shutter and the 3rd shutter, and the side place of the first shutter, the second shutter is respectively equipped with slide wall; lock pin one end is placed in the 3rd shutter on slide wall and is provided with locking key, and locking key is placed on lock pin.
In addition, a kind of Three-hole socket according to the present invention also has following additional technical feature, according to some embodiments of the present invention, further concrete, the described face-piece back side is provided with gathering sill, and lock pin comprises the first lock pin and the second lock pin, and the first lock pin and the second lock pin one side surface are placed in gathering sill.
Further concrete, described first lock pin and the second lock pin are respectively equipped with notch, and described locking key is placed in notch place, are provided with the 3rd back-moving spring between described first lock pin and the second lock pin, and the 3rd back-moving spring two ends are connected on the first lock pin and the second lock pin.
Further concrete, described slide wall comprises the first slide wall and the second slide wall, and the first slide wall is positioned at the first protection reveal, and the second slide wall is positioned at the second protection reveal, and the first shutter, the second shutter and the 3rd shutter are respectively equipped with inclined-plane.
Further concrete, described first slide wall and the symmetrical distribution of the second slide wall.
Further concrete, described 3rd shutter is provided with the 4th back-moving spring, and the 4th back-moving spring is placed on drain pan or face-piece.
Concrete described first shutter and the V-shaped distribution of the second shutter further, the 3rd shutter is positioned at above lock pin.
Further concrete, described face-piece is provided with gathering sill, and described first shutter and the second shutter are placed in gathering sill.
Concrete further, described gathering sill is in the shape of the letter V shape.
Further concrete, described first shutter is provided with the first back-moving spring, and the second shutter is provided with the second back-moving spring, and the first back-moving spring and the second back-moving spring are connected on face-piece or drain pan.
The invention has the beneficial effects as follows: 1, utilize lock pin and shutter combination, do not have standard plug to be placed on shutter simultaneously, depend merely on side and promote shutter, then cannot open, play safeguard protection effect; 2, utilize the first locking key and the second locking key to lock lock pin, limiting non-plug cannot unlock, and prevents child from adopting in metal probe plant socket, causes the risk of getting an electric shock, plays and prevent electric shock effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The structural representation that Fig. 2 is face-piece, gathering sill, the first lock pin, the second lock pin, the 3rd shutter, locking key are connected with gathering sill.
The structural representation that Fig. 3 is drain pan, the first lock pin, the second lock pin, the first shutter, the first slide wall, the first back-moving spring, the second shutter, the second slide wall, the second back-moving spring, the 3rd back-moving spring, the 3rd shutter, the 4th back-moving spring are connected with locking key.
The icon of the following drawings illustrates:
Face-piece 1; Gathering sill 101; Drain pan 2; First lock pin 3; Second lock pin 4; First shutter 5; First slide wall 501; First back-moving spring 501; Second shutter 6; Second slide wall 601; Second back-moving spring 602; 3rd back-moving spring 7; 3rd shutter 8; 4th back-moving spring 801; Locking key 802; Gathering sill 9.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Below with reference to Fig. 1 to Fig. 3, a kind of Three-hole socket according to the embodiment of the present invention is described.
As shown in Figure 1 to Figure 3; the present invention describes a kind of Three-hole socket; comprise drain pan 2; and drain pan 2 is fixed with face-piece 1, wherein face-piece 1 is provided with lock pin, is provided with the shutter along drain pan 2 internal shift in drain pan 2; shutter is divided into the first shutter 5, second shutter 6 and the 3rd shutter 8; the side place of the first shutter 5, second shutter 6 is respectively equipped with slide wall, and lock pin one end is placed in the 3rd shutter 8 on slide wall and is provided with locking key, and locking key is placed on lock pin.In the jack of wherein plug insertion socket; plug promotes the first shutter 5, second shutter 6 simultaneously and the 3rd shutter 8 is shifted; 3rd shutter 8 promotes locking key and leaves on lock pin; lock pin is allowed to move along the slide wall on the first shutter 5 and the second shutter 6; lock pin comes closer simultaneously; first shutter 5, second shutter 6 and the 3rd shutter 8 place open mode, obtain electric when plug contacts with movable contact spring.
In addition, a kind of Three-hole socket according to the present invention also has following additional technical feature, according to some embodiments of the present invention, further concrete, described face-piece 1 back side is provided with gathering sill 101, lock pin comprises the first lock pin 3 and the second lock pin 4, first lock pin 3 and the second lock pin 4 one side surface and is placed in gathering sill 101.Wherein utilize the first lock pin 3 and the second lock pin 4 to lock the first shutter 5 and the second shutter 6 respectively, under preventing abnormal condition, easily push shutter open, there is certain potential safety hazard.
Further concrete, described first lock pin 3 and the second lock pin 4 are respectively equipped with notch, described locking key is placed in notch place, is provided with the 3rd back-moving spring the 7, three back-moving spring 7 two ends and is connected on the first lock pin 3 and the second lock pin 4 between described first lock pin 3 and the second lock pin 4.Wherein back-moving spring 8 has the effect of reset, allows the first lock pin 3 and the second lock pin 4 move around in horizontal direction.
Further concrete, described slide wall comprises the first slide wall 501 and the second slide wall 601, first slide wall 501 is positioned at the first shutter 5 side, and the second slide wall 601 is positioned at the second shutter 6 side.Wherein the first shutter 5 and the second shutter 6 prevent other metalwork from directly inserting in the jack of socket.In addition, the first shutter 5, second shutter 6 and the 3rd shutter 8 are respectively equipped with inclined-plane.Inclined-plane helps plug and pushes the first shutter 5, second shutter 6 and the 3rd shutter 8 simultaneously open, avoids stuck phenomenon.
Further concrete, described first slide wall 501 and the symmetrical distribution of the second slide wall 601, help and simplify overall structure.
Further concrete, described 3rd shutter 8 is provided with the 4th back-moving spring the 801, four back-moving spring 801 and is placed on drain pan 2 or face-piece 1.Wherein plug leaves the 3rd shutter 8, under the power effect of the 4th back-moving spring 801, allows the 3rd shutter 8 again reset.
Concrete described first shutter 5 and the V-shaped distribution of the second shutter 6 further, the 3rd shutter 8 is positioned at above lock pin.Wherein be convenient to when the 3rd shutter 8 is shifted, allow locking key 802 leave the first lock pin 3 and the second lock pin 4, play unblock effect.Now, the first lock pin 3 and the second lock pin 4 can be drawn close mutually, allow the first shutter 5 and the second shutter 6 be shifted, are convenient to plug and insert in socket.
Further concrete, described face-piece 1 is provided with gathering sill 9, and described first shutter 5 and the second shutter 6 are placed in gathering sill 9.Gathering sill 9 is in the shape of the letter V shape.Wherein be conducive to the first shutter 5 and the second shutter 6 pairs of jacks are protected, help the first shutter 5 and the second shutter 6 actual displacement in addition.
Concrete further, described first shutter 5 is provided with the first back-moving spring 501, second shutter 6 and is provided with the second back-moving spring 602, first back-moving spring 501 and the second back-moving spring 602 is connected on face-piece 1 or drain pan 2.Wherein the first back-moving spring 501 and the second back-moving spring 602 play reset response.These are only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement or improvement etc., all should be included within protection scope of the present invention.