CN214378981U

CN214378981U - Safety socket

Info

Publication number: CN214378981U
Application number: CN202120658893.4U
Authority: CN
Inventors: 梁豫阳; 梁玉洁
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-10-08
Anticipated expiration: 2031-03-31

Abstract

The utility model discloses a safe socket belongs to socket technical field, characterized by: the device comprises N press link contact rods; the upper surface of the base is provided with a vertical through hole; two power supply link points are fixed on the outer wall of the lower end of the downward pressing link contact rod, and a first normally open switch and a second normally open switch are arranged on the side wall of the jack; the pressing link contact rod penetrates through the vertical through hole and the return spring; a power supply contact is arranged below each power supply link point; four power contacts between two adjacent press link contact rods are connected through two relay leads; the second normally open switch, the left plug contact and the upper side power supply contact corresponding to the right press link contact rod of each jack group are connected through wires; the first normally open switch, the right plug contact and the lower side power supply contact corresponding to the right press link contact rod of each group of jacks are connected through wires; two phase wires of the power supply wire are respectively connected with two power contacts corresponding to the left press link contact rod. The utility model discloses can greatly reduce the probability of electric shock.

Description

Safety socket

Technical Field

The utility model belongs to the technical field of the socket, especially, relate to a safety socket.

Background

As is well known, sockets are also called power sockets and switch sockets, and english translation is socket. A socket is a receptacle into which one or more circuit connections can be inserted, through which various connections can be inserted. This facilitates the connection with other circuits. The connection and disconnection between the circuit and the copper piece are realized to finally achieve the connection and disconnection of the part of the circuit. In the using process of the socket, electric shock accidents often occur due to various reasons, and the electric shock is commonly called as electric shock, which means body injury or dysfunction caused by the fact that current exceeding a certain amount of polarity passes through a human body. The severity of the electric injury is different, and the clinical manifestations are different.

In recent years, human beings have found through extensive data analysis that: electric shock accidents are various, most of them are caused by that human body directly contacts with charged body; more than 20 million children die of China each year due to accidental injury, and on average, more than 540 children die of China each day by accident. In the accidental death of children, the death by electric shock accounts for 10.6 percent, namely 57 children die by electric shock every day; among them, the electric shock accidents of the socket are rare.

In order to reduce the occurrence of electric shock accidents of children, various electric shock prevention sockets have been developed, such as:

1. the socket is blocked by the baffle, so that the plug is difficult to insert, and the potential safety hazard of electricity utilization exists in the socket since the plug can also be inserted.

2. When the socket is inserted into one hole, no electricity is available, but when the socket is inserted into the other two holes, electricity can be generated, so that a large potential safety hazard of electricity utilization can exist inside;

specifically, the method comprises the following steps: for example, the utility model discloses a utility model patent with publication number CN206471554U, entitled "a safety socket against electric shock", when the plug inserts the jack, the plug pushes the button motion simultaneously, and then pushes two second contact blocks to electrically connect with the first contact block, when the plug inserts in the socket completely, the second contact block and the first contact block are connected and can be electrified, so that the safety of the socket is greatly improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a safety socket just for solving above-mentioned problem for reduce the risk that children electrocute.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

a safety receptacle, comprising:

a base (1) made of insulating material; the upper surface of the base (1) is provided with M groups of vertical jacks (1-1), M is a natural number greater than 0, and the bottom of each jack (1-1) is provided with a plug contact (1-2);

n press-down link contact rods (1-5) made of insulating materials; n is a natural number greater than 1; a vertical through hole is formed in the upper surface of the base (1); two power supply link points (1-7) are fixed on the outer wall of the lower end of each downward pressing link contact rod (1-5), and the vertical distance between the two power supply link points (1-7) is larger than 0;

a first normally open switch (1-3) and a second normally open switch (1-4) which are arranged on the side wall of each jack (1-1); the first normally open switch (1-3) is positioned above the second normally open switch (1-4); wherein:

the downward pressing link contact rod (1-5) sequentially penetrates through the vertical through hole and the return spring (1-6) from top to bottom; the height of the upper end part of the downward pressing link contact rod (1-5) is not less than the height of the upper surface of the base (1); a power supply contact is arranged below each power supply link point (1-7); the upper side power supply contacts between two adjacent press link contact rods (1-5) are connected through an upper side relay lead (3-1); the lower side power supply contacts between two adjacent press link contact rods (1-5) are connected through a lower side relay lead (3-1);

a plurality of second normally open switches (1-4) of each group of jacks (1-1), a left plug contact and an upper side power supply contact corresponding to the right press link contact rod are connected through wires; a plurality of first normally open switches (1-3) of each group of jacks (1-1), a right plug contact and a lower power supply contact corresponding to the right press link contact rod are connected through wires; two phase wires of the power supply wire (3) are respectively connected with two power contacts corresponding to the left press link contact rod.

The utility model has the advantages that:

compared with the traditional safety socket which is provided with the shielding piece for preventing electric shock, the utility model abandons the shielding piece at the jack, so that the plug is easier to plug and unplug and more convenient to use;

compared with the traditional socket, the safety socket is additionally provided with N tiny protrusions (downwards pressing and connecting contacts); when the device works, only when N downward-pressing link contacts are simultaneously stressed to move downwards and the plug is simultaneously inserted into the jack, the wire loop can be conducted, otherwise, the wire loop is in an open circuit state, and further, the electric shock of children can be avoided to the maximum extent;

three, the utility model discloses in, constitute a down-pressure formula double-pole single-throw switch between two power supply chain links on the contact bar and the power supply wire is linked to the push down, under reset spring's effect, form an automatic formula of kick-backing down formula double-pole single-throw switch, further guarantee the security of socket.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of the initial state of the preferred embodiment of the present invention;

fig. 2 is a schematic structural diagram of the closed state of the preferred embodiment of the present invention;

FIG. 3 is a partial structural view of a base for showing the installation position of a return spring according to a preferred embodiment of the present invention;

fig. 4 is a circuit diagram of a preferred embodiment of the present invention;

fig. 5 is a top view of the preferred embodiment of the present invention.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1 and 2, a safety socket includes:

a base 1 made of an insulating material; the upper surface of the base 1 is provided with M groups of vertical jacks 1-1, wherein M is a natural number greater than 0, each group of jacks 1-1 can provide power supply service for an independent plug, and the bottom of each jack 1-1 is provided with a plug contact 1-2;

n downward pressing link contact rods 1-5 made of insulating materials; n is a natural number greater than 1; a vertical through hole is formed in the upper surface of the base 1; two power supply link points 1-7 are fixed on the outer wall of the lower end of each lower pressing link contact rod 1-5, the power supply link points 1-7 can be annular metal sheets or convex blocks made of metal materials, when the lower pressing link contact rods 1-5 are stressed to vertically move, the power supply link points 1-7 vertically and synchronously move, and the vertical distance between the two power supply link points 1-7 is d; d is greater than 0; the shape of the lower link contact is preferably cylindrical, for example, the preferred embodiment uses a cylinder, the diameter of the lower link contact rod 1-5 is 1.5mm, and the upper end of the lower link contact may be a flat surface, a circular arc, a hemisphere, a bullet or a mushroom.

The first normally open switch 1-3 and the second normally open switch 1-4 are arranged on the side wall of each jack 1-1; the first normally open switch 1-3 is positioned above the second normally open switch 1-4; wherein:

the downward pressing link contact rod 1-5 sequentially penetrates through the vertical through hole and the return spring 1-6 from top to bottom; the height of the upper end part of the downward pressing link contact rod 1-5 is not less than that of the upper surface of the base 1; preferred size ranges are: the height difference between the upper end of the press link contact rod 1-5 and the upper surface of the base 1 ranges from 2mm to 5 mm. In this embodiment, the difference in height between the upper end of the push-down link trolley 1-5 and the upper surface of the base 1 is 3 mm.

In order to further improve the safety, a fuse box is connected in series on the power supply lead 3;

a power supply contact is arranged below each power supply link point 1-7, and as shown in fig. 4, the power supply contact comprises an A-phase power supply contact 3-2 and a B-phase power supply contact 3-3; the upper side power supply contacts between two adjacent press link contact bars 1-5 are connected through an upper side relay lead 3-1; the lower side power supply contacts between two adjacent lower press link contact bars 1-5 are connected through a lower side relay lead 3-1;

during wiring, the plurality of second normally open switches 1-4 of each jack 1-1, the left plug contact and the upper side power supply contact corresponding to the right press link contact rod are connected through wires; a plurality of first normally open switches 1-3 of each group of jacks 1-1, a right plug contact and a lower power supply contact corresponding to the right press link contact rod are connected through a lead; two phase wires of the power supply wire 3 are respectively connected with two power contacts corresponding to the left press link contact rod.

The number of the press link contact rods 1-5 can be two, and also can be three or more. The downward pressing link contact rods 1-5 are positioned between two jacks of the same plug; as shown in fig. 5, three push-down link contact bars 1-5 are arranged in a triangular position.

As shown in fig. 3: rectangular grooves 1-9 and wire grooves 1-10 are arranged on the base 1, and the return springs 1-6 are positioned in the rectangular grooves; the outer wall of the downward pressing link contact rod 1-5 is provided with a bulge, and the bulge is positioned at the upper end of the return spring 1-6; the power supply conductor 3 and the relay conductor 3-1 are located in the conductor grooves 1-10.

The heights of the upper end parts of the N press link contact rods 1-5 are inconsistent.

As shown in fig. 4, the working principle of the present invention is:

as shown in fig. 1 in an initial state, before a plug 2 is inserted into a jack, a link contact rod 1-5 is pressed down to isolate a power supply lead 3 and a relay lead 3-1 below, and power-off gaps 1-8 are formed between the power supply lead 3 and the relay lead 3-1 and between two relay leads 3-1; as long as a power-off notch appears, the power supply loop is in an off state at the moment, so that even if a conductor is inserted into any jack, the conductor cannot get an electric shock;

the power supply state of the plug 2 inserted into the jack is shown in fig. 2, after the plug is inserted into the jack, the power supply contact on the link contact rod 1-5 is pressed down to conduct the power supply lead 3 and the relay lead 3-1 below, the power supply lead 3 and the relay lead 3-1 are conducted, and at the moment, the power supply loop is in a closed state.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A safety socket comprising a base (1) of insulating material; the upper surface of the base (1) is provided with M groups of vertical jacks (1-1), M is a natural number greater than 0, and the bottom of each jack (1-1) is provided with a plug contact (1-2); it is characterized by at least comprising:

2. The safety receptacle of claim 1, wherein: the number of the press link contact rods (1-5) is two or three.

3. The safety receptacle of claim 1, wherein: a rectangular groove is formed in the base (1), and the return springs (1-6) are located in the rectangular groove; the outer wall of the downward pressing link contact rod (1-5) is provided with a bulge, and the bulge is positioned at the upper end of the return spring (1-6).

4. The safety receptacle of claim 1, wherein: the downward pressing link contact rod (1-5) is cylindrical.

5. The safety receptacle of claim 4, wherein: the diameter of the press link contact rod (1-5) is 1.5 mm.

6. The safety receptacle of claim 1, wherein: the heights of the upper end parts of the N press link contact rods (1-5) are different.

7. The safety receptacle of claim 1, wherein: the upper end parts of the downward pressing link contact rods (1-5) are planes or cambered surfaces.

8. The safety receptacle of claim 1, wherein: the range of the height difference between the upper end part of the press link contact rod (1-5) and the upper surface of the base (1) is 2mm to 5 mm.

9. The safety receptacle of claim 8, wherein: the height difference between the upper end part of the downward pressing link contact rod (1-5) and the upper surface of the base (1) is 3 mm.

10. The safety receptacle of claim 7, wherein: the power supply lead (3) is connected in series with a fuse box.