ES1063409U - Plug base with security shutter (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Plug socket with safety shutter, constituted by a base body (1) and a cover plate (2), provided in this cover plate (2) with the appropriate openings for the plugging of standardized pins of the so-called "argentine type". ", provided with two rectangular pins (6), inclined angularly with respect to a central axis of symmetry, and a third rectangular pin (8) ground, arranged on the axis of symmetry itself, characterized by having a shutter device that prevents accidental access of any object by any of the rectangular openings (5) of the cover plate (2), for passage of the rectangular pins (6) for electrical connection, device that is located under the cover plate (2) and inside the shutter plate (12), so that a shutter element (18) can be moved, as required, to allow access to the interior of the base body (1), or to prevent, by sealing, said access, staying t all the device, shutter (18) and shutter plate (12), positioned between the lid plate (2) and the upper part of the base body (1), which are joined together by means of press fit thanks to suitable elements, pins of closure (3) of the cover plate (3) and side cavities (4) that has a base body (1). (Machine-translation by Google Translate, not legally binding)

Description

Plug base with safety shutter.

This utility model refers to a plug base, applicable to low electrical installations voltage, domestic and similar, provided with a device safety shutter, designed so that it can only access to the interior area, where contacts are located in those who fit the pins of the pegs, when they are introduced the two ears in unison. The characteristics Essentials of this plug base are described below.

The possibility that it can be accessed, in a way accidental, inside the body of a plug base, with a metallic object, such as a punch, a fork or any object similar to the reach of children, for example, is a risk factor against the specific fact that a unfortunate and serious domestic accident by electrical contact.

That is why, according to the basic rules Existing safety issues in electrical installations Low voltage, it is necessary that the mentioned plug bases are equipped with a security device that prevents access of the aforementioned elements, which can be introduced unconsciously inside the base, preventing this way they get to touch the internal contacts.

This security device, however, It will be designed to allow correct access without difficulty of the pins of the plug, which should be placed on the basis of plug, in order to carry out the consequent Connection.

The plug base object of the present invention covers security and connection requirements required, offering the installer an element of total guarantee in operation, to be placed on the premises domestic and similar, as previously described.

The shutter device is designed to remain installed inside the base, below its plate upper, plate provided with the appropriate openings for your use in plugging of standardized, known plugs as the "Argentine" type with two spikes rectangular, angled angularly with respect to an axis of central symmetry and a third rectangular pin, for earth, arranged on the axis of symmetry itself.

In this peg base model known as "Argentine type", the shutter protects access incorrect or accidental inward by any of the rectangular openings intended for the introduction of corresponding pin pins.

Regarding the third opening, intended to the passage of the spike that corresponds to the grounding of the electrical device, the shutter mechanism does not regulate access for the same, since the earth contact located inside of the plug base is not connected to any conductor electrical, not representing, therefore, any danger.

In order to describe in detail the essential characteristics of the plug base provided with Safety shutter, object of the present invention, is Attached are some drawings in which, by way of non-limiting example,  a practical embodiment of the aforementioned has been represented base.

In these drawings,

Figure 1 is a perspective view of the base, showing all of its components drawn in explosion, and the location of each of them, with respect to the remaining;

Figure 2 is a perspective view, and also with the elements located in explosion of the three components that make up the safety shutter device, but seen from below, that is, from its lower face;

Figure 3 is a view, from the bottom side, of the shutter placed in its shutter holder, and in the position of closing of the openings of the base;

Figure 4 is a complementary view of the previous figure, of the shutter in the displaced position, allowing access through the openings of the base;

Figure 5 is a view of the assembly, sectioned according to an imaginary vertical plane, perpendicular to the axis of symmetry of the set, and located in the middle area of the shutter. In This figure represents an element, pin pin type, located outside and starting its entry through an opening of the base;

Figure 6 is a section of the assembly, equivalent to that of the previous figure, showing the sequence of the introduction of an element through the opening of the base and getting to touch the shutter;

Figure 6bis is a larger detail of the contact area between the element that is introduced and the shutter, according to figure 6;

Figure 7 is a section of the same set, equivalent to that of figures 5 and 6 but showing the element which has been introduced through the opening of the base leaning over the shutter and moving it in rocking, without access inland;

Figure 7bis is a larger detail of the contact area between the inserted element and the shutter displaced, according to figure 7;

Figure 8 is a view similar to that of sectioned assembly, of figures 6 and 7, but with the element introduced through the other opening of the base;

Figure 8bis is an enlarged detail of the area of contact between the element introduced through the other groove and that has displaced the shutter, according to figure 8;

Figure 9 is a view of the assembly, sectioned according to a vertical plane, perpendicular to the section plane of the Figures 5 to 8, and arranged in the middle area of the opening located in the nearest half of the mentioned set. In this figure you they represent a connecting pin and the grounding pin, all in accordance with the dihedral projection of the section done. Both spikes are located above the base and in the corresponding place to be introduced through the corresponding openings;

Figure 10 is a view equivalent to that of the previous figure, of the sectioned set, but with the spikes beginning to enter its corresponding openings, being the connecting pin touching the upper face of the shutter; Y

Finally, Figure 11 is a view similar to the two previous figures, and in which the contact pin has shifted the shutter and has fitted into the contact of the base.

According to the drawings that have been related and with the initial description, the plug socket with shutter security object of the present invention, is constituted by a base body (1) on which a cover plate (2) will fit, both being perfectly subject by the joint action of some closure pins (3) of said cover plate (2), which are fixed by clipping in the corresponding lateral recesses (4) which has the base body (1).

The cover plate (2), quadrangular in shape, it has three rectangular openings (5), arranged in the form already standardized for plug bases and plugs of the type called "argentinian". Two of these openings (5), are located at an angle, incidents towards the extreme edge of the plate lid (2), and arranged symmetrically with respect to the plane Imaginary vertical symmetry, reference AA (See Figure 1). The corresponding pins will be inserted through these slots (5) rectangular section (6) that will establish contact electric.

The third rectangular opening (7) is symmetrically positioned on the aforementioned vertical plane of symmetry AA, and towards the opposite half of the openings (5) in angle of the cover plate (2), this opening being where introduce the grounding pin (8).

In its lower face, the cover plate (2) has a hollow projection (9) of rectangular prismatic shape, coincident with the grounding opening (7), as well as several tabs (10), located on two of its sides (11), which allow the fixation and clamping by clipping of a plate holder (12).

This shutter plate (12) is contour rectangular and coincident with the inner perimeter of the plate lid (2), its shape being such that it allows, thanks to its two lateral flanges (13), fixed by clipping inside the cover plate (2), by means of tabs (10), being immobilized in position when stopping an incoming area (14) of its wall side against a hollow boss (9) provided on the cover plate (2).

The sealing plate (12) also has two rectangular openings (15), matching dimensions and position with the openings (5) of the cover plate (2) to allow, in its coincidence, the passage of the electric contact pins (6).

On its inner face, the obturator plate (12) has, on the side wall opposite to that of the entrant (14), tabs (16) that configure the housing of the end of a cylindrical spring (17) of a shutter (18).

This shutter (18) is rectangular in shape, coinciding its length with the interior width of the plate shutter holder (12), so that, placed inside, as show figures 3 and 4, is guided by its sides, being able to  move across said shutter plate (12).

The shutter (18) has two rectangular areas symmetric (19), inclined surface, ramp-shaped, as well as a central recessed area (19a) by way of accommodation, where The cylindrical spring (17) will be located, which, by its action expansive, will keep the shutter (18) located at all times the area of the shutter holder (12) where the two are located openings (15), so that it closes the possible access through said openings (15) into the base body (1) of the device.

By joining and being fixed and subject by clipping the cover plate (2) and the shutter plate (12), the shutter (18) is arranged inside, being able to move from the position where access is blocked through openings (5) and (15), according to figure 3, to the position in which said free  access, according to figure 4.

This offset will occur only when the two contact pins are introduced in unison electric (6) through the openings (5) of the cover plate (2), whose spikes will affect the inclined ramp surface of the two zones (19) of the shutter (18), causing, by pressure, shutter movement, overcoming spring action cylindrical (17) that kept it in its initial position of obturation. This action is clearly represented in the Figures 9 to 11.

On its lower face, the shutter (18) has two overhangs (20), with a wedge-shaped inclined upper surface, symmetrically located in coincidence with the aforementioned openings rectangular (15).

The mentioned shutter being in position permanent initial shutter, according to figure 3, and keeping in it by the action of the cylindrical spring (17), the Inland access to the base body (1) remains closed. Yes in an accidental way an element (21) is introduced through one of the rectangular openings (5) of the cover plate (2), action represented in sequence in figures 5 to 8, this element (21) will affect one of the surface areas inclined (19) of the shutter (18), without being able to move it, but only, because of the unilateral pressure exerted, will it cause displacement in the sense of swing, making the corresponding projection (20) fits over the opening (15) of the obturator plate (12), also preventing the passage towards the inside of the base body (1).

Inside the mentioned base body (1) hollow prismatic projections (22) are located where the appropriate electrical contacts will be properly housed (23), as well as a third projection (24), similar to the previous ones, where the grounding contact (25) is housed, also identical to the previous two contacts (23).

These contacts, electrical (23) and ground (25), are of the elastic clamp type, which is fixed in the upper part of the body of embornado (26), housed in turn in a corresponding projection (27) located on the underside of the base body (1), in which, laterally, and through the holes (28), the cables that must be wrapped are introduced, operation that is executed by means of the bolting bolt action (29).

Describe the plug base sufficiently with Security shutter object of the present invention, must indicate that all variation in dimensions, shapes, appearance and exterior finish of the different components of the device as well as the type of materials used, they will not alter the essentiality thereof, being summarized in the claims following.

Claims (5)

1. Plug base with safety shutter, consisting of a base body (1) and a cover plate (2), provided in this cover plate (2) with the appropriate openings for the plugging of standardized plugs of the type called "Argentine"", provided with two rectangular pins (6), angularly inclined with respect to a central axis of symmetry, and a third rectangular pin (8) of grounding, arranged on the axis of symmetry, characterized by having a sealing device that prevents accidental access of any object through any of the rectangular openings (5) of the cover plate (2), to pass the rectangular pins (6) of electrical connection, device that is located under the cover plate (2) and inside the obturator plate (12), so that a sealing element (18) can be moved, as required, to allow access to the interior of the base body (1), or to prevent, by sealing, said access , remaining all or the device, shutter (18) and obturator plate (12), positioned between the cover plate (2) and the upper part of the base body (1), which are supported by pressure fixation thanks to suitable elements, pins of closing (3) of the cover plate (3) and lateral recesses (4) having a base body (1). 2. Plug base with safety shutter, according to the preceding claim, characterized in that the shutter (18) is rectangular in shape and suitable dimensions to allow its placement inside the shutter holder (12) and to slide, guided by its sides, along the width thereof, said shutter (18) being provided with two rectangular symmetrical zones (19), inclined in ramp, and a central recessed area (19 a), for housing a cylindrical spring (17), which, by its expansive action will keep the shutter (18) over the area where the two openings (15) of the shutter plate (12) are made, preventing access to the interior of the base body (1) by said openings (15), access also hindered by the shutter itself (18) through the openings (5) of the cover plate (2), coinciding in position with the openings (15) of the cover plate (12). 3. Plug base with safety shutter, according to the preceding claims, characterized in that the displacement of the shutter (18) to free that of the obturator plate (12), will be carried out only by the action in unison of the two rectangular pins ( 6), introduced through the openings (5) and impinge on the ramps (19) of the shutter (18), causing its displacement by pressure, overcoming the retaining action of the cylindrical spring (17) that kept it in the initial position of sealing, displacement that will be made in the opposite direction, when the pins (6) are removed from the base, always by the action of said cylindrical spring (17). 4. Plug base with safety shutter, according to the preceding claims, characterized in that the pressure action on the shutter (18) exerted by a single object (21), action that will be performed through a single opening (5) and only on one of the inclined ramp surfaces (19) of the shutter (18), will it cause only a displacement of said shutter (18) in a rolling direction, causing the corresponding projection (20) of the said shutter (18) to fit over the opening (15) of the sealing plate (12), the passages through the other openings being closed, the opening (5) of the cover plate (2) and the opening (15) of the sealing plate (12) . 5. Plug base with safety shutter according to claim 4a, whose base body (1) has hollow prismatic projections (22) inside it for the correct placement of the electrical contacts (23), as well as other projections (24 ) for the grounding contact (25), contacts on which the corresponding rectangular pins of the openings (5) and (7) of the cover plate (2) of the assembly will be interlocked, characterized in that the sealing element (18 ) exerts its closing action of the passage through the openings (5) and (15), which give access to the electrical contacts (23) while not closing the passage through the opening (7), for access to the grounding contact (25), as it does not offer any danger due to its neutral character.