CN110752491B

CN110752491B - Anti-loosening and anti-short circuit socket

Info

Publication number: CN110752491B
Application number: CN201911065733.2A
Authority: CN
Inventors: 周德刚
Original assignee: Quanzhou Hongpan Machinery Technology Co ltd
Current assignee: Quanzhou hongpan Machinery Technology Co.,Ltd.
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2021-07-02
Anticipated expiration: 2039-11-04
Also published as: CN110752491A

Abstract

The invention discloses a looseness-preventing short-circuit-preventing socket which comprises a socket and a plug, wherein the socket comprises a square shell embedded in a wall body, two pairs of clamping reeds are fixedly installed on the inner wall of the rear side of the shell, the two pairs of clamping reeds are respectively and electrically connected with a live wire and a zero line, jacks are formed in the front end of the shell and at the positions corresponding to the two pairs of clamping reeds, the plug comprises a base body and two inserting pieces embedded in the front end of the base body, the two inserting pieces can be respectively inserted into the corresponding pair of clamping reeds through the jacks, two strain holes are formed in the front end of the shell and between the two jacks, iron cores are installed on the inner walls of the strain holes, and a first connecting wire is wound on the outer walls of the two iron. Has the advantages that: the invention uses the same mechanism to deal with two different modes according to two conditions mentioned in the background technology, and has corresponding solutions no matter the plug is loose or the power of the electric appliance is too high, thereby avoiding dangerous situations.

Description

Anti-loosening and anti-short circuit socket

Technical Field

The invention relates to the technical field of sockets, in particular to an anti-loosening and anti-short-circuit socket.

Background

The socket is used as a power utilization medium frequently used in daily life, and the convenience and safety of use of the socket are particularly critical. However, in the long-term use process, in order to prevent the plug from loosening and falling off in the electricity utilization process, two groups of elastic reeds used for clamping the plug are usually arranged in the socket, but along with the fact that the reeds are long in use time, the friction loss with the plug is serious, the structure is changed, the clamping effect cannot be achieved, the phenomena of loosening and poor contact are easy to occur, the contact resistance of the two groups of reeds is increased, heat is accumulated, short circuit occurs, and fire disasters can occur in serious cases; in addition, as can be seen from the formula I ═ P/U, when the voltage is constant, when a socket is connected to a high-power electrical appliance, such as an electric furnace, the current of the power transmission line is increased, and the joule law Q ═ I²Rt, it is known that the wire generates heat remarkably, and the wire insulation may be burned, which also causes a fire.

To solve the above problems, we propose a locking short-circuit prevention socket.

Disclosure of Invention

The invention aims to solve the problems in the background art and provides a looseness-proof short-circuit-proof socket.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a locking short circuit socket that prevents moving, includes socket and plug, the socket includes inlays the dress in the wall body, square casing, the rear side inner wall fixed mounting of casing has two pairs of clamping spring leaf, and two pairs of clamping spring leaf respectively with live wire, zero line electric connection, the front end of casing and seted up the jack on the corresponding position of two pairs of clamping spring leaf, the plug includes the base member and inlays the two inserted sheets of dress in the base member front end, two inserted sheets can insert respectively through the jack and correspond a pair of clamping spring leaf, the front end of casing and seted up two strain holes between two jacks, the iron core is installed to the inner wall in strain hole, two the outer wall of iron core twines jointly the connecting wire one, the connecting wire one is spring-like winding many circles and the same to the spiral direction at the outer wall of two iron cores, is located between two iron cores a connecting wire electric connection has pressure switch, both ends of the first connecting wire are electrically connected with fixed conducting strips;

the rear side inner wall fixedly connected with of casing is criss-cross insulating heat conduction pole, both ends contact with two pairs of tight reeds of clamp respectively about the insulating heat conduction pole, the other one end fixedly connected with memory metal stick of insulating heat conduction pole, the memory metal stick is the bar-shaped structure when just normally, works as when memory metal stick temperature exceedes its abnormal temperature, turns round into the heliciform, and memory metal stick twists reverse 180, the one end fixedly connected with insulator spindle that insulating heat conduction pole was kept away from to the memory metal stick, the equal fixedly connected with in both ends of insulator spindle moves the conducting strip, two it is connected with mains supply through connecting wire two, converter jointly to move the conducting strip, two move the conducting strip and contact with two fixed conducting strips respectively and be connected.

In the anti-loosening and anti-short circuit socket, the insulating heat conducting rod is made of a ceramic material.

In the anti-loosening and anti-short circuit socket, the memory metal rod is made of nickel-titanium memory alloy.

Compared with the prior art, this locking short circuit prevention socket that moves has:

1. when an electric appliance needs to be powered by a plug and a socket, two inserting pieces of the plug are respectively inserted into a corresponding pair of clamping reeds through inserting holes, a pressure switch is pressed to be connected with a trigger closed circuit, a mains supply is converted into direct current through a converter and is connected into a first connecting wire and a second connecting wire, an electromagnet generates a stable magnetic field and generates magnetic attraction force on a permanent magnet, at the moment, the hand of a user stops pressing a base body, after pressing force on the pressure switch is removed, the pressure switch is continuously pressed due to the fact that the electromagnet and the permanent magnet generate the magnetic attraction force, the plug is firmly adsorbed on the socket, and the situation that due to the fact that the clamping reeds are too long in service time, the structure is changed and loosened, contact resistance is increased, and fire;

2. when a high-power electric appliance described in the background art is connected to a socket, and huge heat is generated in a loop, the huge heat is also generated by two pairs of clamping reeds, the clamping reeds conduct the heat to a memory metal rod through an insulating heat conducting rod, the memory metal rod continuously absorbs the heat until the abnormal temperature is reached, the memory metal rod is twisted into a spiral shape, namely the insulating rod is twisted by 180 degrees in a rotating manner, when the memory metal rod rotates to 180 degrees, the current direction in a trigger closed circuit can be changed, so that the magnetic poles of two electromagnets are changed, and a mutual repulsion force is generated on a permanent magnet, so that a plug can be pushed out of the socket, and the possibility of fire caused by the fact that the heat cannot be dissipated due to continuous electricity utilization is avoided.

In summary, the invention uses the same mechanism to deal with two different modes according to two situations mentioned in the background art, and corresponding solutions are provided no matter the plug is loosened or the power of the electric appliance is too high, so that dangerous situations are avoided.

Drawings

Fig. 1 is a schematic structural diagram of a loose-proof and short-circuit-proof socket according to the present invention.

In the figure: the device comprises a shell 1, a clamping reed 2, an inserting sheet 3, a strain hole 4, an iron core 5, a pressure switch 6, a first connecting wire 7, a fixed conducting strip 8, an insulated conducting rod 9, a memory metal rod 10, an insulated rod 11, a movable conducting strip 12, a second connecting wire 13, a base body 14, a permanent magnet 15 and a jack 16.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

Examples

Referring to fig. 1, a loosening-preventing short-circuit-preventing socket comprises a socket and a plug, the socket comprises a square shell 1 embedded in a wall body, two pairs of clamping reeds 2 are fixedly installed on the inner wall of the rear side of the shell 1, the two pairs of clamping reeds 2 are respectively electrically connected with a live wire and a zero wire, jacks 16 are formed in the front end of the shell 1 and at the corresponding positions of the two pairs of clamping reeds 2, the plug comprises a base 14 and two inserting pieces 3 embedded in the front end of the base 14, the two inserting pieces 3 can be respectively inserted into the corresponding pair of clamping reeds 2 through the jacks 16, two strain holes 4 are formed in the front end of the shell 1 and between the two jacks 16, iron cores 5 are installed on the inner walls of the strain holes 4, connecting wires 7 are wound on the outer walls of the two iron cores 5 together, the connecting wires 7 are wound in a plurality of circles in a spring shape and have the same rotation direction, the magnetic field intensity and the magnetic pole direction of the two electromagnets are the same and are influenced by the current direction, the magnetic pole direction of the electromagnets can be changed by changing the current direction, a connecting wire I7 positioned between the two iron cores 5 is electrically connected with a pressure switch 6, and two ends of the connecting wire I7 are electrically connected with fixed conducting strips 8;

the rear side inner wall fixedly connected with of casing 1 is criss-cross insulating heat conduction rod 9, both ends respectively with two pairs of tight reed 2 contacts about insulating heat conduction rod 9, the other one end fixedly connected with memory metal stick 10 of insulating heat conduction rod 9, memory metal stick 10 is the bar-shaped structure when normal, when memory metal stick 10 temperature surpassed its abnormal temperature, turn round into the heliciform, memory metal stick 10 twists reverse 180, memory metal stick 10 keeps away from insulating heat conduction rod 9's one end fixedly connected with insulator spindle 11, the equal fixedly connected with in both ends of insulator spindle 11 moves conducting strip 12, two move conducting strip 12 and pass through connecting wire two 13 jointly, the converter is connected with mains power supply, two move conducting strip 12 and decide conducting strip 8 contact connection with two respectively.

The insulating heat conducting rod 9 is made of ceramic materials and has heat conducting and insulating properties.

The memory metal rod 10 is made of nickel-titanium memory alloy, the crystal structures of the nickel-titanium alloy are different between 40 ℃ and 40 ℃, but when the temperature is changed at 40 ℃, the alloy can contract or expand, so that the shape of the alloy is changed. Here, 40 ℃ is the "transformation temperature" of the nickel-titanium memory alloy. It is made into a spiral shape at a high temperature and is in a stable state. It is unstable when forced to straighten at room temperature, and therefore, it returns to its original stable helical shape as soon as it is heated to the metamorphic temperature.

In the invention, a trigger closed circuit is formed by the connecting line I7, the connecting line II 13, the two movable conducting strips 12, the two fixed conducting strips 8 and the pressure switch 6 together, and the switching pressure of the pressure switch 6 can be preset to be between 1N and 5N in advance; the iron core 5 and a connecting wire I7 wound around the outer side of the iron core in a spring shape form an electromagnet, and because the number of turns and the rotating direction are the same, the magnetic poles of the two electromagnets are also the same, and in a normal state, the electromagnet and the permanent magnet 15 are attracted;

when an electric appliance needs to be powered by a plug and a socket, a user holds the base body 14 by hands, so that the two inserting pieces 3 are respectively inserted into the corresponding pair of clamping reeds 2 through the inserting holes 16, the pressure switch 6 is pressed to be connected with a trigger closed circuit, a mains supply is converted into direct current by the converter and is connected into the connecting wire I7 and the connecting wire II 13, the electromagnet generates a stable magnetic field and generates magnetic attraction to the permanent magnet 15, at the moment, the hand of the user stops pressing the base body 14, after the pressing force on the pressure switch 6 is removed, the pressure switch 6 is continuously pressed by the electromagnet and the permanent magnet 15, and therefore the plug is firmly adsorbed on the socket, and the situation that fire is caused by overlong use time, loosening due to change of the structure, increase of contact resistance and overheating of the clamping reeds 2 is avoided;

when a high-power electrical appliance described in the background art is connected to a socket, and huge heat is generated in a loop, the huge heat is also generated by two pairs of clamping reeds 2, the clamping reeds 2 conduct the heat to a memory metal rod 10 through an insulating heat conducting rod 9, the memory metal rod 10 continuously absorbs the heat until the abnormal temperature is reached, the heat is twisted into a spiral shape, namely, an insulating rod 11 is twisted by 180 degrees in a rotating manner, when the heat is rotated to 180 degrees, the current direction in a trigger closed circuit is changed, so that the magnetic poles of two electromagnets are changed, and a mutual repulsion force is generated on a permanent magnet 15, so that a plug can be pushed out of the socket, the possibility of fire caused by continuous electricity utilization and heat which cannot be dissipated is avoided.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a locking short circuit prevention socket plug subassembly that moves, includes socket and plug, its characterized in that, the socket is including inlaying square casing (1) in the wall body, the rear side inner wall fixed mounting of casing (1) has two pairs of tight reeds of clamp (2), and two pairs of tight reeds of clamp (2) respectively with live wire, zero line electric connection, the front end of casing (1) just has seted up jack (16) on the corresponding position of two pairs of tight reeds of clamp (2), the plug includes base member (14) and inlays two inserted sheets (3) of dress at base member (14) front end, two inserted sheets (3) can insert corresponding a pair of tight reed (2) of clamp through jack (16) respectively in, two strain hole (4) have just been seted up between two jacks (16) to the front end of casing (1), iron core (5) are installed to the inner wall in strain hole (4), the outer walls of the two iron cores (5) are jointly wound with a first connecting wire (7), the first connecting wire (7) is wound on the outer walls of the two iron cores (5) in a spring-shaped manner for multiple circles and has the same rotating direction, the first connecting wire (7) between the two iron cores (5) is electrically connected with a pressure switch (6), and two ends of the first connecting wire (7) are electrically connected with fixed conducting strips (8);

a permanent magnet is arranged on a base body (14) of the plug;

the inner wall of the rear side of the shell (1) is fixedly connected with a cross-shaped insulating heat conducting rod (9), the left end and the right end of the insulating heat conducting rod (9) are respectively contacted with two pairs of clamping reeds (2), the other end of the insulating heat conducting rod (9) is fixedly connected with a memory metal rod (10), the memory metal rod (10) is of a rod-shaped structure when in normal state, when the temperature of the memory metal rod (10) exceeds the transformation temperature, the memory metal rod is twisted into a spiral shape, the memory metal rod (10) is twisted for 180 degrees, one end of the memory metal rod (10) far away from the insulated heat conducting rod (9) is fixedly connected with an insulated rod (11), the two ends of the insulating rod (11) are fixedly connected with movable conducting strips (12), the two movable conducting strips (12) are connected with a mains supply through a second connecting wire (13) and a converter, and the two movable conducting strips (12) are respectively in contact connection with the two fixed conducting strips (8).

2. The anti-loose anti-short circuit socket plug assembly as claimed in claim 1, wherein the insulating heat conducting rod (9) is made of ceramic material.

3. The anti-loose anti-short circuit socket plug assembly as claimed in claim 1, wherein the memory metal rod (10) is made of nickel-titanium memory alloy.