CN201149932Y

CN201149932Y - Double-layer protective safety socket

Info

Publication number: CN201149932Y
Application number: CNU2007200760096U
Authority: CN
Inventors: 贾春红; 武志磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-11
Filing date: 2007-11-11
Publication date: 2008-11-12
Anticipated expiration: 2017-11-11

Abstract

The utility model relates to a safety socket which can realize double-layer protection. The safety socket is mainly composed of electrode slices of the socket, a compression rod, an insulating board, a metal sheet, binding posts, a spring, a screw, a coil and a normally open contact of a time delay relay, an LED and a current limiting resistor. One end of the coil and the contact of the time delay relay, and the current limiting resistor is respectively connected on the L line of a power supply, the other end is respectively connected on the binding post, the electrode slices and the LED, the LED is connected on the binding post, the compression rod, the insulating board, the metal sheet, the screw and the spring form a switch with resetting function, the other electrode slice and the binding post corresponding to the electrode slice are connected on the N line of the power supply, and the rest binding posts are connected together in series. The safety socket adopts the normally open contact of the time delay relay to control the electric conductive conditions of the electrode slices, when a conductor is inserted into a hole, the electrode slices are uncharged, when conductors are respectively inserted into two holes, and the electrode slices cannot be charged with electricity immediately, and are energized after a certain time is delayed. The safety socket is securer than other sockets, and can guarantee that a person cannot suffer form electric shock during the operating process.

Description

The safety socket of double shielding

Technical field

The utility model relates to a kind of safety socket with double shielding.

Background technology

Socket is the very general wiring product of a kind of use, and Gong Ying socket can directly touch sheet metal from jack in the market, thus when people mistake run into sheet metal or mistake with other conducting objects patchhole in the time, will cause electric shock accidents.When especially day genuine children oneself play socket, easier generation electric shock accidents.Therefore, for the father and mother that children are arranged in the family, socket exists danger all the time.Therefore, be necessary to design a kind of socket that is perfectly safe.

Summary of the invention

The purpose of invention of the present utility model provides the very high supply socket of a kind of fail safe.It can guarantee that the people in use can unexpectedly not get an electric shock.

Embodiment of the present utility model is: mainly by the socket electrode slice, and depression bar, insulation board, sheet metal, binding post, spring, screw, time-delay relay coil and normally opened contact, LED light, current-limiting resistance is formed.The L line of power line links to each other with normally opened contact, and normally opened contact links to each other with a electrode slice in the hole, and the N line of power line links to each other with another electrode slice; The L line of power line and the coil of time-delay relay link to each other, and coil links to each other with a binding post of the hole correspondence that connects the L line again; In two binding posts corresponding with the hole that connects the N line one links to each other with power supply N line, and two remaining binding posts link to each other.In two holes depression bar is arranged, depression bar, insulation board, sheet metal, screw and spring are formed the switch with reset function, when the thing moulded rod, depression bar moves downward, sheet metal is contacted with binding post, because depression bar, insulation board, sheet metal, screw and spring are formed the switch with reset function, and two switches with reset function are series relationship, so have only when all being depressed and contacting with binding post, the time-delay relay coil gets electric, and LED is luminous, often opens the closure of getting an electric shock, at this moment the continuous electrode slice of Kong Zhongyu L line gets behind the time-delay certain hour.

The utility model is suitable as the supply socket of household electrical appliance and uses, and its major advantage is:

(1) the socket electrode slice is when plug useless inserts, and electrode slice is uncharged all the time.

(2) have conductor to insert in any one hole, the socket electrode slice can be not charged yet.

When (3) all having conductor to insert in two jacks, the socket electrode slice can be not charged immediately yet.

(4) owing to used time-delay relay, so after the depression bar in the jack all is depressed, have only through behind the certain hour, electrode slice just can be switched on, so can the guarantor in use can unexpectedly not get an electric shock.

(5) easy to use, fail safe is very high.

Description of drawings

Fig. 1 is the safety socket schematic diagram of double shielding

Fig. 2 is the safety socket mechanical structure schematic diagram of double shielding

Fig. 3 is the safety socket electrical schematic diagram of double shielding

1. socket electrode slices among the figure, 2. depression bar, 3. screw, 4. insulation board, 5. sheet metal, 6. time-delay relay normally opened contact, 7. time-delay relay coil, 8. current-limiting resistance, 9. indicator light, 10. jack housing base plate, 11. springs, 12. binding posts.

Embodiment

Below in conjunction with description of drawings embodiment of the present utility model: depression bar in Fig. 1 (2), insulation board (4), sheet metal (5) are fixed together with screw (6); Electrode slice (1) links to each other with normally opened contact (6), and the L line of normally opened contact (6) and power supply links to each other; Electrode slice (16) links to each other in binding post (15), links to each other with the N line of power supply again; Binding post (13) links to each other in binding post (14); Binding post (10) links to each other with time-delay relay coil (7), and time-delay relay coil (7) links to each other with the L line of power supply again; LED (9) indicator light and current-limiting resistance (8) are connected, and are connected in parallel on the two ends of relay coil again; Spring (12) is placed in the circular hole of socket base plate, plays a part to reset.As can be known, this socket secure is very high, and two-layer guard method is arranged on the principle, guarantees that the people in use can unexpectedly not get an electric shock.

Claims

1. safety socket with double shielding, mainly by the electrode slice (1) of socket, depression bar (2), insulation board (4); sheet metal (5), binding post, spring (12), screw (3); time-delay relay coil (7) and normally opened contact (6), LED (9), current-limiting resistance (8) is formed.It is characterized in that: depression bar (2), insulation board (4), sheet metal (5) are fixed together with screw (3), be positioned in the jack that electrode slice (1) is installed, metallic plate is withstood in spring (12) upper end, and the lower end places the circular port on the socket base plate (11), and they constitute reset switch together; LED (9) connects with current-limiting resistance (8), then with coil (7) parallel connection of time-delay relay, relay coil one end links to each other with the L line of power supply, one end links to each other with binding post (10), binding post (13) links to each other with binding post (14), electrode slice (16) links to each other with the L line of power supply together with binding post (15), the normally opened contact one termination electrode slice (1) of time-delay relay, the L line of another termination power.