A double insurance anti-electric shock socket device and safety protection method

Abstract

The application discloses a double-insurance anti-electric shock socket device, which comprises a socket body, a cover capable of covering the socket hole on the exposed end surface of the socket body and being rotationally connected with the socket body, and a back plate which is detachably installed at the rear side of the socket body to form a relatively closed space in the interior of the socket body; the interior of the socket body is formed with installation cavities of a live wire metal reed, a zero wire metal reed and a ground wire metal reed; the socket body is matched with the cover or a plug and is provided with a magnetic safety matching mechanism. The magnetic safety matching mechanism of the double-insurance anti-electric shock socket device makes the socket in a power-on state when the plug is inserted into the socket hole or after the plug is inserted into the socket hole and the cover is covered relative to the socket body, and makes the socket in a power-off state when the plug is separated from the socket hole or the cover is opened relative to the socket body, so that the socket device is in the power-off state in the non-use state, and the risk of electric shock is reduced.

Description

Technical Field

[0001] This invention relates to sockets, and more particularly to a double-protection socket device and safety protection method for preventing electric shock. Background Technology

[0002] A socket, also known as a power outlet or switch socket, is a base with one or more plugs for inserting electrical appliances. Sockets are recessed into walls and draw power by inserting the plug into the socket's prongs. When power is drawn, the metal parts of the plug are inserted into the socket and make contact with the switch contacts inside the socket, thus creating a circuit and achieving the purpose of drawing power.

[0003] To prevent the socket holes from being exposed and posing a safety hazard when not in use, most existing socket products are equipped with socket covers or protective covers. However, covers or protective covers only prevent the socket holes from being exposed; the socket itself remains energized, and the risk of electric shock still exists. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a double-protection socket device to prevent electric shock. It utilizes magnetic repulsion to conduct electricity, ensuring the socket is energized when the plug is inserted into the socket or when the cover is closed relative to the socket body. Conversely, it de-energizes the socket when the plug is separated from the socket or when the cover is open relative to the socket body. The magnetic safety mechanism and the cover shielding the socket provide double protection, reducing the risk of electric shock.

[0005] The technical solution adopted in this invention is as follows:

[0006] A double-safety anti-electric shock socket device includes a socket body, a cover rotatably connected to the socket body to cover the socket holes on the exposed end face of the socket body, and a back plate detachably installed on the rear side of the socket body to form a relatively closed space inside the socket body.

[0007] The socket body has a first partition inside, and the back plate has a second partition. The first partition and the second partition cooperate to form a spring mounting cavity. The spring mounting cavity is equipped with a live wire metal spring connected to the live wire, a neutral wire metal spring connected to the neutral wire, and a ground wire metal spring connected to the ground wire. The live wire metal spring, the neutral wire metal spring, and the ground wire metal spring can contact the metal parts of the plug inserted into the socket.

[0008] The socket body mates with the cover or plug and is equipped with a magnetic safety engagement mechanism. The magnetic safety engagement mechanism keeps the socket in a powered state when the plug is inserted into the socket or when the cover is closed relative to the socket body. It keeps the socket in a powered-off state when the plug is separated from the socket or when the cover is opened relative to the socket body.

[0009] Furthermore, the magnetic safety coupling mechanism is installed on the socket body and the cover. When the plug is inserted into the socket and the cover is closed relative to the socket body, the magnetic safety coupling mechanism conducts the live wire metal spring and the neutral wire metal spring, and disconnects the live wire metal spring and the neutral wire metal spring when the cover is opened relative to the socket body.

[0010] The magnetic safety mating mechanism includes a master magnetic component and a slave magnetic component;

[0011] The main control magnetic component includes two sets of first connecting posts installed on the side of the cover near the socket body, and a first magnet fixedly installed at the end of the first connecting posts;

[0012] The driven magnetic component includes two sets of second connecting posts installed in the socket body, and a second magnet installed in the second connecting posts; the second connecting posts are hollow inside and form a movable space to cooperate with the second magnet, and have a port for inserting a live wire metal spring or a neutral wire metal spring; the second magnet is located in the second connecting post and has a metal switch connecting piece that cooperates with the live wire metal spring or the neutral wire metal spring to conduct, and forms a repulsive force with the first magnet.

[0013] Furthermore, the magnetic safety mating mechanism is installed on the socket body and the plug. The magnetic safety mating mechanism conducts the live wire metal spring and the neutral wire metal spring after the plug is inserted into the socket, and disconnects the live wire metal spring and the neutral wire metal spring after the plug is separated from the socket.

[0014] The magnetic safety mating mechanism includes a master magnetic component and a slave magnetic component embedded in the plug;

[0015] The main control magnetic component includes a first magnet embedded in the plug, or the main control magnetic component includes an adapter that can be mounted on the plug, and the first magnet is embedded in the adapter.

[0016] The driven magnetic component includes a second connecting post installed inside the socket body, matching the number of main magnetic components, and a second magnet installed inside the second connecting post; the second connecting post is located between the live wire socket and the neutral wire socket, and is hollow inside, forming a movable space to cooperate with the second magnet, and has a port formed on it to cooperate with the insertion of the live wire metal spring or the neutral wire metal spring; the second magnet is located inside the second connecting post, and has a metal switch connecting piece on it to cooperate with the conduction of the live wire metal spring or the neutral wire metal spring, which forms a repulsive force with the first magnet.

[0017] Furthermore, when the double-protection anti-electric shock socket device is installed on the wall and the cover is closed or the plug is inserted into the socket, the first magnet and the second magnet are located on the same horizontal axis; the second connecting post is horizontally set, and its interior is provided with a horizontal slide rail that matches the second magnet. The front end of the post is fixedly installed with an iron piece that matches the second magnet, and the rear end forms a port for inserting a live wire metal spring or a neutral wire metal spring; the second magnet can be horizontally slidably installed in the second connecting post, forming a repulsive force between it and the first magnet, and a magnetic attraction force between it and the iron piece. The repulsive force is greater than the magnetic attraction force, so that the second magnet can slide horizontally backward to conduct the live wire metal spring or the neutral wire metal spring.

[0018] Furthermore, the second connecting post is inclined, with its rear end being the high point and its front end being the low point; a slide rail for the second magnet is provided inside the second connecting post, with its low point being a closed end and its high point forming a port for inserting a live wire metal spring or a neutral wire metal spring; the second magnet is slidably installed inside the second connecting post, and a repulsive force is formed between it and the first magnet, allowing it to slide to the high point through the repulsive force, and to slide to the low point through its own gravity when there is no repulsive force.

[0019] Furthermore, when the double-protection anti-electric shock socket device is installed on the wall and the cover is closed, the first connecting post and the second connecting post partially overlap, and the first magnet installed on the first connecting post and the second magnet located inside the second connecting post are vertically coaxial; the second connecting post is horizontally arranged, and its interior is provided with a vertical movement space to cooperate with the second magnet. Its front end is a closed end, and its rear end forms a port for inserting a live wire metal spring or a neutral wire metal spring. After the live wire metal spring or the neutral wire metal spring is inserted, it can extend above the second magnet; the second magnet is vertically movable and installed inside the second connecting post. It forms a repulsive force with the first magnet. It moves vertically to the high point inside the second connecting post by the repulsive force, and falls to the low point inside the second connecting post by its own gravity when there is no repulsive force.

[0020] Furthermore, the second connecting post is horizontally positioned with a closed front end and a port at its rear end for inserting the live wire metal spring. The second magnet is oscillatingly mounted inside the second connecting post and located at the front end of the second connecting post. It forms a repulsive force with the first magnet and rotates to a vertical position to contact the live wire metal spring or the neutral wire metal spring through the repulsive force. When there is no repulsive force, it swings back to its initial position by its own gravity and disengages from the live wire metal spring or the neutral wire metal spring.

[0021] Furthermore, both the first magnet and the second magnet are composed of several magnets. The end faces of the first magnet and the second magnet are provided with at least one N pole and at least one S pole, and the magnetic poles on the end faces of the first magnet and the second magnet are arranged in a one-to-one correspondence to form a repulsive force. A metal switch connecting piece is installed on the side of the second magnet away from the first magnet.

[0022] Furthermore, the rear end of the second connecting post is located at the live wire metal spring or the neutral wire metal spring. The live wire metal spring includes a first live wire metal spring and a second live wire metal spring that can be inserted into the second connecting post. The neutral wire metal spring includes a first neutral wire metal spring and a second neutral wire metal spring that can be inserted into the second connecting post.

[0023] The rear end of the second connecting post is located on any section of the live or neutral wire on the socket body, forming a break point in the live or neutral wire, and a first live wire conductive piece and a second live wire conductive piece, or a first live wire conductive piece and a second live wire conductive piece, are installed at the break point that can be inserted into the second connecting post.

[0024] A safety protection method for a socket device, the safety protection method being based on the aforementioned double-protection anti-electric shock socket device, the safety protection method being based on the circuit breaker or residual current device forming a linkage safety protection with the double-protection anti-electric shock socket device;

[0025] First, when a short circuit or overload occurs, the circuit breaker or residual current device will operate to prevent the temperature from rising, thus avoiding permanent demagnetization of the magnetic safety mechanism of the double-protected anti-electric shock socket device.

[0026] Second, when the circuit breaker or residual current device fails and a short circuit or overload occurs, the high temperature generated will permanently demagnetize the magnetic safety mechanism of the double-protected anti-electric shock socket device, and the socket will be permanently de-energized.

[0027] Third, when the circuit breaker or residual current device is functioning normally, the double-protection anti-electric shock socket device works by engaging the socket body with the cover or plug to keep the socket energized after the plug is inserted into the socket or when the cover is closed relative to the socket body, thus providing electrical protection.

[0028] The beneficial effects of this invention are:

[0029] Firstly, this double-safety anti-electric shock socket device provides multiple layout schemes for the magnetic safety coupling mechanism, as well as various ways of arranging the magnets in the magnetic safety coupling mechanism. The magnetic safety coupling mechanism uses the repulsive force or magnetic attraction of the magnet to push the power supply to close or disconnect, thereby ensuring that the socket is in a powered state when the plug is inserted into the socket or when the cover is closed relative to the socket body, and in a powered-off state when the plug is separated from the socket or when the cover is open relative to the socket body. The magnetic safety coupling mechanism and the cover form a double safety, reducing the risk of electric shock, and it is more suitable for use in humid environments.

[0030] Secondly, this double-protection anti-electric shock socket device can work in conjunction with a circuit breaker or a residual current device (RCD) to form a linked safety protection. In the event of a short circuit or overload, the circuit breaker or RCD will operate correctly to protect the double-protection anti-electric shock socket device. If the circuit breaker or RCD fails, the double-protection anti-electric shock socket device will permanently disconnect from power in the event of a short circuit or overload, thereby improving electrical safety.

[0031] In addition, this double-protection anti-electric shock socket device has a simple structure, is easy to install, has high reliability, and is highly safe to use. It is especially suitable for families with little or no electrical knowledge or children, which facilitates its widespread application. It offers high safety in the socket product market and reduces the risk of electric shock. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the double-protection anti-electric shock socket device of the present invention;

[0033] Figure 2 This is a schematic diagram showing the disassembled structure of the double-protection anti-electric shock socket device of the present invention;

[0034] Figure 3 , Figure 4 This is a schematic diagram showing the structure and installation of the live wire metal spring, neutral wire metal spring, and ground wire metal spring of the present invention.

[0035] Figure 5 This is a schematic diagram illustrating the working principle of the magnetic safety mating mechanism of the present invention.

[0036] Figure 6 This is a schematic diagram of the structure of the present invention for use with the plug;

[0037] Figure 7 This is a schematic diagram of the first magnet of the present invention being installed on a two-prong plug;

[0038] Figure 8 This is a schematic diagram of the first magnet of the present invention installed on a three-prong plug;

[0039] Figure 9 This is a schematic diagram of the installation of the second magnet in conjunction with the two-prong plug and the three-prong plug of the present invention;

[0040] Figure 10 A schematic diagram of the first live wire metal spring structure for the present invention, which is compatible with two-prong and three-prong plugs;

[0041] Figure 11 , Figure 12 , Figure 13 , Figure 14 This is a schematic diagram of the adapter structure of the present invention;

[0042] Figure 15 , Figure 16This is a schematic diagram of the plug of the present invention being installed via an adapter;

[0043] Figure 17 , Figure 18 , Figure 19 , Figure 20 , Figure 21 This diagram illustrates four possible arrangements of the first and second magnets in this invention.

[0044] Figure 1 —In the 20, 1—socket body, 2—socket hole, 3—cover, 4—back plate, 5—first partition, 6—second partition, 7—live wire metal spring, 8—neutral wire metal spring, 9—ground wire metal spring, 10—plug, 11—first connecting post, 12—first magnet, 13—second connecting post, 14—second magnet, 15—metal switch connecting piece, 16—adapter, 17—iron sheet, 18—first live wire metal spring, 19—second live wire metal spring, 20—first neutral wire metal spring, 21—second neutral wire metal spring, 22—terminal, 23—front panel, 24—transparent cover, 25—swing rod. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0046] While existing socket products use covers or socket protective covers to prevent the socket holes from being exposed to the outside, the socket itself is always in a powered state, and there is still a risk of electric shock. This embodiment provides a double-protection socket device to prevent electric shock. This double-protection socket device is designed based on the principle that the entire socket device will only be powered when the cover is closed, regardless of whether the plug is inserted into the socket, or the socket will only be powered when the plug is inserted into the socket. Example 1

[0047] like Figure 1 As shown, this double-protection anti-electric shock socket device includes a socket body 1, a cover 3 rotatably connected to the socket body 1 to cover the socket hole 2 on the exposed end face of the socket body 1, and a detachable back plate 4 installed on the rear side of the socket body 1 to form a relatively enclosed space inside the socket body 1. Figure 2As shown, the socket body 1 has a first partition 5 inside, and a second partition 6 on the back plate 4. The first partition 5 and the second partition 6 cooperate to form a spring mounting cavity. A live wire metal spring 7 (connected to the live wire), a neutral wire metal spring 8 (connected to the neutral wire), and a ground wire metal spring 9 (connected to the ground wire) are installed in the spring mounting cavity. The areas above the live wire metal spring 7 on the first partition 5 and the second partition 6 are extended to press and tighten the live wire metal spring 7, keeping its position fixed in the mounting cavity. When installing this double-safety anti-electric shock socket device, the live wire metal spring 7, neutral wire metal spring 8, and ground wire metal spring 9 are connected to the live wire, neutral wire, and ground wire in the wall through the terminal block 22, respectively. Then, the double-safety anti-electric shock socket device is fixed to the wall. When using electricity, the plug metal part is inserted through the socket 2 to contact the live wire metal spring 7, neutral wire metal spring 8, and ground wire metal spring 9 to draw power. To reduce the risk of electric shock, this embodiment installs a magnetic safety engagement mechanism on the socket body 1 and the cover 3. By installing the magnetic safety engagement mechanism, the double-protection anti-electric shock socket device remains in a de-energized state after the plug 10 is inserted into the socket 2. The power is only turned on after the cover 3 is closed relative to the socket body 1.

[0048] Specifically, such as Figure 1 and Figure 2 As shown, the magnetic safety mating mechanism includes a master magnetic component and a slave magnetic component. The master magnetic component includes two sets of first connecting posts 11 mounted on the side of the cover 3 near the socket body 1, and a first magnet 12 fixedly mounted on the end of each first connecting post 11. The slave magnetic component includes two sets of second connecting posts 13 mounted inside the socket body 1, and a second magnet 14 mounted inside each second connecting post 13. The second connecting posts 13 are hollow, forming a moving space to accommodate the second magnet 14. One set of second connecting posts 13 has a port for inserting a live wire metal spring 7, and the other set has a port for inserting a neutral wire metal spring 8. A second partition 6 protrudes into the second connecting posts 13. After the back plate 4 is installed with the socket body 1, the second partition... 6. The second magnet 14 is confined to a specified range. At the same time, the second partition 6 can separate the live wire metal spring 7 or the neutral wire metal spring 8 inside the second connecting post 13. The second connecting post 13 may also have a partition structure inside that can separate the live wire metal spring 7 or the neutral wire metal spring 8. The second magnet 14 is located inside the second connecting post 13. The second magnet 14 is provided with a metal switch connecting piece 15 that cooperates with the live wire metal spring 7 or the neutral wire metal spring 8 to conduct electricity. The second magnet 14 and the first magnet 12 form a repulsive force.

[0049] like Figure 2 , Figure 3 , Figure 4As shown, in this embodiment, the live wire metal spring 7 includes a first live wire metal spring 18 and a second live wire metal spring 19 that can be inserted into the second connecting post 13 from its rear end; the neutral wire metal spring 8 includes a first neutral wire metal spring 20 and a second neutral wire metal spring 21 that can be inserted into the second connecting post 13 from its rear end; the ground wire metal spring 9 adopts the existing ground wire metal spring structure. The first live wire metal spring 18 and the first neutral wire metal spring 20 are both bent metal sheets, one end of which can contact the live wire and neutral wire in the wall respectively through the terminal 22, and the other end can be inserted into the second connecting post 13. One end of the second live wire metal spring 19 and the second neutral wire metal spring 21 is a metal groove structure for contacting the plug, with multiple symmetrically arranged inserts at the groove opening; the other end is a bent metal sheet that can be inserted into the second connecting post 13. The second partition 6 has a slot structure, which fixes the position of the live wire metal spring 7 and the neutral wire metal spring 8 after installation.

[0050] When the plug is inserted into socket 2, the first live wire metal spring 18 and the second live wire metal spring 19, the first neutral wire metal spring 20 and the second neutral wire metal spring 21 are not conductive, and the entire socket device remains in a power-off state. When the plug 10 is inserted into socket 2 and the cover 3 is closed relative to the socket body 1, as... Figure 5 As shown, at this time, the cover 3 drives the two sets of first magnets 12 to move towards the two sets of second magnets 14 through the first connecting post 11. Due to the repulsive force between the second magnets 14 and the first magnets 12, the second magnets 14 move inside the second connecting post 13 until the metal switch connecting piece 15 on one set of second magnets 14 contacts the first live wire metal spring 18 and the second live wire metal spring 19 to conduct electricity, and the metal switch connecting piece 15 on one set of second magnets 14 contacts the first neutral wire metal spring 20 and the second neutral wire metal spring 21 to conduct electricity, so that the entire socket device can draw power normally. When the repulsive force of the first magnet 12 on the second magnet 14 disappears, the second magnet 14 returns to the front end of the second connecting post 13, causing the first live wire metal spring 18 and the second live wire metal spring 19, and the first neutral wire metal spring 20 and the second neutral wire metal spring 21 to disconnect.

[0051] It should be noted that, in this embodiment, because the cover 3 and the socket body 1 are fitted with a magnetic safety engagement mechanism, sufficient space must be left between the front panel of the socket body 1 (where the socket 2 is located) and the cover 3 to accommodate the installation of plugs 10 of different sizes. Specifically, as shown... Figure 6 As shown, the front panel 23 of the socket body 1, where the socket 2 is located, can be designed to be recessed inward, with a recess depth of 16mm. Simultaneously, the inner side of the cover 3 also has a 16mm recess depth to accommodate the installation of the plug 10. Additionally, as... Figure 1As shown, the front panel 23 of the socket body 1, where the socket 2 is located, can also be designed to be flush with the wall, and the cover 3 can be designed to be an outwardly protruding cover 3 or an arc-shaped cover 3, so that the inner side of the cover 3 forms a space to accommodate the installation of the plug 10, and the inner depth of the cover 3 is 32mm; and a rubber ring is provided around the edge of the cover 3, in which case the cover 3 is a waterproof cover 3. The whole is made into an integrated socket with a waterproof cover 3. Example 2

[0052] Based on Embodiment 1, this embodiment provides another way of arranging the magnetic safety cooperation mechanism, that is, by cooperating the plug with the socket body 1, the power on and off state of the socket is controlled, and two feasible methods are given.

[0053] Method 1:

[0054] A magnetic safety mating mechanism is installed on the socket body 1 and the plug. The magnetic safety mating mechanism includes an active magnetic component and a driven magnetic component. For example... Figure 7 As shown, the active magnetic assembly includes two sets of first magnets 12 embedded in the two-prong plug 10, or as... Figure 8 As shown, the active magnetic assembly includes two sets of first magnets 12 embedded in the three-prong plug 10.

[0055] As shown in 9, the driven magnetic component includes four sets of second connecting posts 13 installed in the socket body 1, and second magnets 14 installed in the second connecting posts 13, wherein two sets of second magnets 14 are used to cooperate with the first magnets 12 on the two-prong plug 10, and the other two sets of second magnets 14 are used to cooperate with the first magnets 12 on the three-prong plug 10.

[0056] Since the two-prong plug 10 and the three-prong plug 10 share a set of first live wire metal spring contacts 18 and 19, and a set of first neutral wire metal spring contacts 20 and 21, the structure of the first live wire metal spring contact 18 is modified as follows in this embodiment. Figure 10 The structure shown is modified in the same way as the structure of the first neutral wire metal spring 20.

[0057] The second connecting post 13 is located between the live wire socket 2 and the neutral wire socket 2. The interior of the second connecting post 13 is hollow and forms a movable space to cooperate with the second magnet 14. The rear end of the second connecting post 13 has a port for inserting the first live wire metal spring 18, the second live wire metal spring 19 or the first neutral wire metal spring 20 and the second neutral wire metal spring 21. The second magnet 14 is located inside the second connecting post 13. The second magnet 14 is provided with a metal switch connecting piece 15 that cooperates with the live wire metal spring 7 or the neutral wire metal spring 8 to conduct electricity. A repulsive force is formed between the second magnet 14 and the first magnet 12.

[0058] When plug 10 is inserted into socket 2, the repulsive force between the first magnet 12 and the second magnet 14 causes the second magnet 14 to move inside the second connecting post 13 until the metal switch connecting piece 15 on one set of second magnets 14 contacts the first live wire metal spring 18 and the second live wire metal spring 19 to conduct electricity, and the metal switch connecting piece 15 on the other set of second magnets 14 contacts the first neutral wire metal spring 20 and the second neutral wire metal spring 21 to conduct electricity, thus allowing the two-prong plug 10 or the three-prong plug 10 to draw power normally when inserted into the socket body 1. When plug 10 is pulled out of socket 2, the repulsive force of the first magnet 12 on the second magnet 14 disappears, and the second magnet 14 returns to the front end of the second connecting post 13, causing the first live wire metal spring 18 and the second live wire metal spring 19 to disconnect or the first neutral wire metal spring 20 and the second neutral wire metal spring 21 to disconnect.

[0059] It should be noted that in this embodiment, the cover 3 can be selectively installed. If the cover 3 is installed, it needs to be an outwardly protruding arc-shaped cover 3. The cover 3 only covers the socket 2. In addition, in this embodiment and embodiment 1, in order to increase safety, a socket safety door is installed inside the socket body 1. The socket 2 safety door is a safety protection structure of the existing socket. The socket safety door closes the socket 2 when the plug 10 is not inserted into the socket 2.

[0060] Method 2:

[0061] The main magnetic component includes an adapter 16 that can be mounted on the plug 10, and a first magnet 12 is embedded in the adapter 16; such as Figure 11 , Figure 12 As shown, the adapter 16 is L-shaped and consists of several partitions. Its front face has a guide groove for the metal plate of the plug 10 to extend out. Two sets of first magnets 12 are embedded in the front face of the adapter 16. For safety, as... Figure 13 As shown, the two end faces and bottom of the adapter 16 can also be covered by a transparent cover 24. Alternatively, the adapter 16 can be manufactured as follows: Figure 14 The structure shown is such that the magnetic safety mating mechanism can be achieved without modifying the existing plug 10 structure using the adapter 16.

[0062] Method 2 only modifies the main control magnetic component; the driven magnetic component remains the same as in Method 1. The control method for the socket's on / off state is the same as in Method 1. Figure 15 and Figure 16 As shown. Example 3

[0063] Based on Embodiments 1 and 2, since the first magnet 12, mounted on the cover 3 or the plug 10, is repositioned, that is, after the repulsive force of the first magnet 12 on the second magnet 14 disappears, the second magnet 14 needs to return to its initial position, causing the first live wire metal spring 18 and the second live wire metal spring 19 to disconnect, or the first neutral wire metal spring 20 and the second neutral wire metal spring 21 to disconnect. Therefore, this embodiment provides the following various arrangements of the second connecting post 13 and the second magnet 14, so that the second magnet 14 can return to its initial position after the repulsive force disappears, as follows:

[0064] Method 1: For example Figure 17 and Figure 18 As shown, when the double-safety anti-electric shock socket device is installed on the wall and the cover 3 is closed or the plug 10 is inserted into the socket 2, the first magnet 12 and the second magnet 14 are located on the same horizontal axis. The second connecting post 13 is horizontally arranged, and the interior of the second connecting post 13 is provided with a horizontal slide rail that matches the second magnet 14. An iron piece 17 that matches the second magnet 14 is fixedly installed at the front end of the second connecting post 13. The rear end of the second connecting post 13 forms a port for inserting the first live wire metal spring 18 and the second live wire metal spring 19. The second magnet 14 can be horizontally slidably installed in the second connecting post 13. Figure 18 When the socket body 1 is provided with both two-phase sockets 2 and three-phase sockets 2, the structure consists of two sets of first magnets 12 and two sets of second magnets 14.

[0065] It should be noted that in Method 1, there is a repulsive force between the first magnet 12 and the second magnet 14, and a magnetic attraction between the second magnet 14 and the iron sheet 17. Furthermore, the repulsive force between the first magnet 12 and the second magnet 14 is greater than the magnetic attraction between the second magnet 14 and the iron sheet 17.

[0066] When the cover 3 is closed or the plug 10 is inserted into the socket 2, the first magnet 12 approaches the front end of the second connecting post 13. The repulsive force between the first magnet 12 and the second magnet 14 causes the second magnet 14 to slide horizontally backward within the second connecting post 13, thus creating a conductive action. When the cover 3 is opened or the plug 10 is removed, the repulsive force between the first magnet 12 and the second magnet 14 disappears, and the second magnet 14 returns to its initial position through the magnetic attraction between itself and the iron plate 17, thus creating a disconnecting action.

[0067] Furthermore, in order to ensure that the repulsive force between the first magnet 12 and the second magnet 14 is greater than the magnetic attraction force between the second magnet 14 and the iron sheet 17, the shape of the metal switch connecting piece 15 on the second magnet 14 can be changed to partially isolate the contact surface between the second magnet 14 and the iron sheet 17, thereby reducing the magnetic attraction force; or the iron sheet 17 can be stamped with a raised ring to reduce the contact area between the iron sheet 17 and the second magnet 14, thereby reducing the magnetic attraction force and thus reducing the adsorption strength of the second magnet 14 on the iron sheet 17.

[0068] Method 2: For example Figure 19 As shown, based on Method 1, the second connecting post 13 is inclined, with its rear end being the high point and its front end being the low point, allowing the second magnet 14 to slide along an oblique trajectory within the second connecting post 13; simultaneously, the iron plate 17 fixedly installed at the front end within the second connecting post 13 is removed. A slide rail is provided within the second connecting post 13 to accommodate the second magnet 14, with its low point being a closed end and its high point forming an insertion port for the first wire metal spring 18 and the second wire metal spring 19; the second magnet 14 is slidably installed within the second connecting post 13.

[0069] When the cover 3 is closed or the plug 10 is inserted into the socket 2, the repulsive force between the first magnet 12 and the second magnet 14 causes the second magnet 14 to slide towards the high end of the rear end of the second connecting post 13, thus creating a conductive action. When the cover 3 is opened or the plug 10 is pulled out, the repulsive force between the first magnet 12 and the second magnet 14 disappears, and the second magnet 14 slides down to the low end under its own gravity, returning to its initial position, thus creating a disconnecting action.

[0070] Method 3: For example Figure 20 As shown, based on Method 1, a space is formed inside the second connecting post 13 to accommodate the vertical movement of the second magnet 14. Specifically, when the double-safety anti-electric shock socket device is installed on the wall and the cover 3 is closed, the first connecting post 11 and the second connecting post 13 partially overlap within the socket body 1. After the cover 3 is closed, the first magnet 12 installed above the end of the first connecting post 11 and the second magnet 14 located inside the second connecting post 13 are vertically coaxial. The second connecting post 13 has a vertically movable space to accommodate the second magnet 14. Its front end is a closed end, and its rear end has a port for inserting the first live wire metal spring 18 and the second live wire metal spring 19. After the first live wire metal spring 18 and the second live wire metal spring 19 are inserted, they can extend above the second magnet 14. The second magnet 14 is vertically movable and installed inside the second connecting post 13.

[0071] When the cover 3 is closed, the repulsive force between the first magnet 12 and the second magnet 14 causes the second magnet 14 to move vertically upward to the highest point inside the second connecting post 13, thus establishing a conductive action. When the cover 3 is opened, the repulsive force between the first magnet 12 and the second magnet 14 disappears, and the second magnet 14 moves vertically downward to return to its initial position under its own gravity, thus establishing a disconnecting action.

[0072] Method 4: For example Figure 21 As shown, based on Method 1, a space is formed inside the second connecting post 13 to accommodate the swinging of the second magnet 14. Specifically, the second connecting post 13 is horizontally positioned, with a closed front end and a port at its rear end for inserting the first wire metal spring 18 and the second wire metal spring 19. The bottom side of the second magnet 14 is rotatably mounted inside the second connecting post 13 via the swing rod 25, and the second magnet 14 is located at the front end inside the second connecting post 13, creating a repulsive force between it and the first magnet 12.

[0073] When the cover 3 is closed or the plug 10 is inserted into the socket 2, the first magnet 12 approaches the front end of the second connecting post 13. The repulsive force between the first magnet 12 and the second magnet 14 causes the second magnet 14 to rotate to a vertical position. At this time, the metal switch connecting piece 15 on the second magnet 14 contacts the first live wire metal spring 18 and the second live wire metal spring 19, forming a conductive action. When the cover 3 is opened or the plug 10 is pulled out, the repulsive force between the first magnet 12 and the second magnet 14 disappears. The second magnet 14, under its own gravity, swings back to its initial position around the connection point between the swing rod 25 and the second connecting post 13, forming a disconnect action.

[0074] The above four methods can be selected according to the size of the socket body 1. When selecting method one, method two, or method three, a low-resistance sliding layer can be added to the inner surface of the second connecting post 13. The low-resistance sliding layer includes a ceramic hollow tube and a Teflon coating; or multiple ribs can be added to the inner surface of the second connecting post 13. The ribs reduce the frictional contact area between the second magnet 14 and the inner surface of the second connecting post 13, thereby reducing the frictional force of the second magnet 14 in the second connecting post 13.

[0075] It should be noted that, in Embodiments 1, 2, and 3, in order to ensure absolute safety, a magnetic safety coordination mechanism is used to simultaneously connect or disconnect the live wire metal spring 7 and the neutral wire metal spring 8. Since the probability of electric shock to the neutral wire is relatively small, in practical applications, the number of the first connecting post 11, the first magnet 12, the second connecting post 13, and the second magnet 14 can be appropriately adjusted to control the connection or disconnection of the live wire metal spring 7. Example 4

[0076] Based on Embodiments 1, 2, and 3, in order to further improve the safety of the socket device and prevent any magnetic device from pushing the magnet inside the second connecting post 13; for example... Figure 5 , Figure 17 , Figure 19 , Figure 20 As shown, in this embodiment, both the first magnet 12 and the second magnet 14 are composed of two magnets. The end faces of the first magnet 12 and the second magnet 14 are provided with at least one N pole and at least one S pole, and the magnetic poles on the end faces of the first magnet 12 and the second magnet 14 are arranged in a one-to-one correspondence to form a repulsive force. A metal switch connecting piece 15 is installed on the side of the second magnet 14 away from the first magnet 12. By setting multiple magnetic poles on the end faces of the first magnet 12 and the second magnet 14, it is possible to prevent other single-pole magnets from accidentally pushing the second magnet 14 inside the second connecting post 13, thus preventing connection to the live wire. Furthermore, the N pole and the S pole in the same end face have the same area, resulting in the same repulsive force or magnetic attraction force.

[0077] In addition, when the structural changes of the live wire and neutral wire metal springs are restricted, the installation position of the magnetic safety mating mechanism can also be changed. The rear end of the second connecting post 13 can be located on any segment of the live wire or neutral wire inside the socket body 1. By forming a break point in the live wire or neutral wire, and installing a first live wire conductive piece and a second live wire conductive piece that can be inserted into the second connecting post 13 at the break point, the same safety protection effect can be achieved.

[0078] In summary, this double-safety anti-electric shock socket device provides multiple layout schemes for the magnetic safety coupling mechanism, as well as various magnet layout methods for the magnetic safety coupling mechanism. The magnetic safety coupling mechanism conducts power through magnetic repulsion and disconnects power through magnetic attraction or its own gravity. This ensures that the socket is energized when the plug 10 is inserted into the socket 2 or when the cover 3 is closed relative to the socket body 1, and de-energized when the plug 10 is separated from the socket 2 or when the cover 3 is open relative to the socket body 1. The magnetic safety coupling mechanism and the cover 3 shielding the socket 2 form a double safety mechanism, reducing the risk of electric shock.

[0079] Furthermore, due to the high-temperature demagnetization characteristic of magnets, this double-safety anti-electric shock socket device can also be used in conjunction with a circuit breaker or residual current device (RCD) to form a linked safety protection system. Specifically, when a short circuit or overload occurs, the circuit breaker or RCD activates to prevent temperature rise and avoid permanent demagnetization of the magnetic safety mechanism installed in the double-safety anti-electric shock socket device; when the circuit breaker or RCD fails, the high temperature generated during a short circuit or overload will permanently demagnetize the magnetic safety mechanism installed in the double-safety anti-electric shock socket device, permanently cutting off power to the socket; when the circuit breaker or RCD functions normally, the double-safety anti-electric shock socket device, through the cooperation of the socket body 1 and the cover 3 or plug 10, conducts the live wire metal spring 7 after the plug 10 is inserted into the socket 2, or keeps the socket energized when the plug 10 is inserted into the socket 2 and the cover 3 is closed relative to the socket body 1, thus forming electrical protection.

[0080] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A double-insulated, electric shock-proof socket device, characterized in that: The double-insurance anti-electric shock socket device comprises a socket body, a cover rotatably connected with the socket body to cover the insertion hole on the exposed end surface of the socket body, and a back plate detachably mounted on the rear side of the socket body to form a relatively closed space in the socket body; The first partition plate is arranged in the socket body, and the second partition plate is arranged on the back plate, so that the spring plate mounting cavity is formed by cooperation of the first partition plate and the second partition plate, and the live wire metal spring plate connected with the live wire, the zero wire metal spring plate connected with the zero wire and the ground wire metal spring plate connected with the ground wire are mounted in the spring plate mounting cavity and can be in contact with the metal part of the plug inserted into the insertion hole; The socket body is matched with the cover or the plug, and is provided with a magnetic safety matching mechanism, which enables the socket to be in a power-on state when the plug is inserted into the insertion hole or when the cover is closed relative to the socket body after the plug is inserted into the insertion hole, and enables the socket to be in a power-off state when the plug is separated from the insertion hole or when the cover is opened relative to the socket body. The magnetic safety matching mechanism comprises a master magnetic component and a driven magnetic component; the master magnetic component comprises a first magnet; the driven magnetic component comprises a second connecting column and a second magnet mounted in the second connecting column; the second connecting column is hollow and forms a moving space matched with the second magnet, and a port matched with the insertion of the live wire metal spring plate or the zero wire metal spring plate is formed on the second connecting column; the second magnet is located in the second connecting column, and a metal switch connecting piece matched with the conduction of the live wire metal spring plate or the zero wire metal spring plate is arranged on the second magnet, and a repulsive force is formed between the first magnet and the second magnet.

2. The double-insulated, electric shock-proof socket apparatus according to claim 1, characterized in that: The magnetic safety matching mechanism is mounted on the socket body and the cover, and the magnetic safety matching mechanism conducts the live wire metal spring plate and the zero wire metal spring plate when the plug is inserted into the insertion hole and the cover is closed relative to the socket body, and disconnects the live wire metal spring plate and the zero wire metal spring plate when the cover is opened relative to the socket body. The master magnetic component comprises two groups of first connecting columns mounted on the side of the cover close to the socket body, and the first magnet is fixedly mounted on the end of the first connecting column; the driven magnetic component comprises two groups of second connecting columns mounted in the socket body, and the second magnet is mounted in the second connecting column.

3. The double-insulated, electric shock-proof socket apparatus according to claim 1, characterized in that: The magnetic safety matching mechanism is mounted on the socket body and the plug, and the magnetic safety matching mechanism conducts the live wire metal spring plate and the zero wire metal spring plate when the plug is inserted into the insertion hole, and disconnects the live wire metal spring plate and the zero wire metal spring plate when the plug is separated from the insertion hole. The master magnetic component comprises a first magnet embeddedly mounted on the plug, or the master magnetic component comprises an adapter capable of being mounted on the plug, and the first magnet is embeddedly mounted on the adapter; the driven magnetic component comprises a second connecting column matched in number with the master magnetic component and mounted in the socket body; the second connecting column is located between the live wire insertion hole and the zero wire insertion hole.

4. The double-insulated, electric shock-proof socket device according to claim 2 or 3, characterized in that: The first magnet and the second magnet are located on the same horizontal axis when the socket device is installed on the wall and the cover is closed or the plug is inserted into the socket; the second connecting column is horizontally arranged, and a horizontal sliding groove matched with the second magnet is arranged in the second connecting column; an iron sheet matched with the second magnet is fixedly arranged at the front end of the second connecting column, and a port matched with the insertion of the live wire metal reed or the zero line metal reed is formed at the rear end of the second connecting column; the second magnet is slidably arranged in the second connecting column, repulsion is formed between the second magnet and the first magnet, magnetic attraction is formed between the second magnet and the iron sheet, and the repulsion is greater than the magnetic attraction, so that the second magnet can slide backward to guide the live wire metal reed or the zero line metal reed.

5. The double-insulated, electric shock-proof socket apparatus according to claim 2 or 3, characterized by: The second connecting column is arranged obliquely, the rear end of the second connecting column is the high point end, and the front end of the second connecting column is the low point end; a sliding groove matched with the second magnet is arranged in the second connecting column, the low point end of the second connecting column is a closed end, and a port matched with the insertion of the live wire metal reed or the zero line metal reed is formed at the high point end of the second connecting column; the second magnet is slidably arranged in the second connecting column, repulsion is formed between the second magnet and the first magnet, and the second magnet can slide to the high point end through the repulsion, and the second magnet slides to the low point end through its own gravity when there is no repulsion.

6. The double insulated, electric shock-proof socket apparatus according to claim 2, wherein: When the socket device is installed on the wall and the cover is closed, the first connecting column and the second connecting column form a partial overlap, and the first magnet arranged on the first connecting column and the second magnet arranged in the second connecting column are vertically coaxial; the second connecting column is horizontally arranged, a vertical moving space matched with the second magnet is arranged in the second connecting column, the front end of the second connecting column is a closed end, and a port matched with the insertion of the live wire metal reed or the zero line metal reed is formed at the rear end of the second connecting column, and the live wire metal reed or the zero line metal reed can extend above the second magnet after being inserted; the second magnet is vertically movably arranged in the second connecting column, repulsion is formed between the second magnet and the first magnet, and the second magnet is vertically moved to the high point in the second connecting column through the repulsion, and the second magnet falls to the low point in the second connecting column through its own gravity when there is no repulsion.

7. The double insulated electric shock proof socket apparatus according to claim 2 or 3, wherein: The second connecting column is horizontally arranged, the front end of the second connecting column is a closed end, and a port matched with the insertion of the live wire metal reed is formed at the rear end of the second connecting column; the second magnet is swingably arranged in the second connecting column, and the front end of the second magnet is arranged in the second connecting column, repulsion is formed between the second magnet and the first magnet, the second magnet is rotated to a vertical state through the repulsion to contact the live wire metal reed or the zero line metal reed, and the second magnet swings to the initial position through its own gravity to separate from the live wire metal reed or the zero line metal reed when there is no repulsion.

8. The double insulated electric shock proof socket apparatus according to claim 2 or 3, wherein: The first magnet and the second magnet are each composed of a plurality of magnets, and the end surface of the first magnet and the end surface of the second magnet are provided with at least one N-pole and at least one S-pole, and the poles of the end surfaces of the first magnet and the second magnet are arranged one by one to form repulsion; a metal switch connecting sheet is arranged on the side of the second magnet away from the first magnet.

9. The double insulated electric shock proof receptacle apparatus according to claims 2 or 3, wherein: The rear end of the second connecting column is located at the live wire metal reed or the zero line metal reed, the live wire metal reed includes a first live wire metal reed and a second live wire metal reed which can be inserted into the second connecting column, and the zero line metal reed includes a first zero line metal reed and a second zero line metal reed which can be inserted into the second connecting column; The rear end of the second connecting column is located on any section of the live wire or the zero line of the socket body, when the rear end of the second connecting column is located on any section of the live wire or the zero line of the socket body, the live wire or the zero line forms a broken line point, and the first live wire conductive sheet and the second live wire conductive sheet or the first zero line metal reed and the second zero line metal reed capable of being inserted into the second connecting column are installed at the broken line point.

10. A safety protection method of the socket device, which is based on the double-insulated electric shock prevention socket device according to any one of claims 1-9, characterized in that: The safety protection method is based on the linkage safety protection of the air switch or the leakage protector and the double insurance anti-electric shock socket device; First, when short circuit or overload occurs, the air switch or the leakage protector acts to prevent temperature rise and avoid permanent demagnetization of the magnetic safety cooperation mechanism installed in the double insurance anti-electric shock socket device; Second, when the air switch or the leakage protector is damaged and fails, when short circuit or overload occurs, the high temperature generated causes the permanent demagnetization of the magnetic safety cooperation mechanism installed in the double insurance anti-electric shock socket device, and the socket is permanently powered off; Third, when the air switch or the leakage protector is in normal function, the double insurance anti-electric shock socket device is in power-on state through the cooperation of the socket body and the cover or the plug, and forms the electric protection after the plug is inserted into the socket or after the plug is inserted into the socket and the cover is closed relative to the socket body.

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