Electric shock prevention type power socket

Abstract

The anti-electric shock power socket comprises an insulating inner shell, a wiring terminal, a moving contact, a static contact and an insulating outer shell, when a power supply is connected, the static contact is separated from the moving contact, and the wiring terminal is not electrified; when the switch elastic sheet is pushed by a plug to enable the static contact to be in contact with the moving contact and the wiring terminal to be electrified, even if the socket is connected with a power supply, as long as the plug of an electric appliance is not completely inserted into the wiring terminal, the socket is not electrified as the static contact is not in contact with the moving contact and the wiring terminal is not electrified, so that the possibility of electric leakage can be reduced, and the safety of the socket is improved. Only when the plug is completely inserted into the wiring terminal, the plug can push the switch elastic sheet to deviate, so that the moving contact moves to one side of the static contact, the moving contact is in contact with the static contact, socket line conduction is achieved, and the safety of the socket can be greatly improved. The wiring terminal is simple in structure, convenient to produce and low in production cost, and the product production cost is reduced while the use convenience and the use safety of the power socket are improved.

Description

Technical Field

[0001] The invention belongs to the field of extension cord power sockets, and in particular relates to an electric shock protection type power socket. Background Art

[0002] Power strips, also known as extension cord power sockets, are a common household appliance accessory that plays an indispensable role in our lives, and leakage accidents caused by the use of power strips are common. Leakage refers to the loss of current through an unexpected path, which may lead to electric shock accidents and fire hazards. In daily use, water ingress and accidental touch are common causes of short circuit leakage in power strips. First of all, water is a conductor. When water enters a traditional power strip, it will form a conductive path inside the power strip, causing the current to flow along the water, thereby causing leakage; secondly, after water enters the power strip, it cannot be discharged in time and will stay in the power strip for a long time, which may corrode the metal parts inside the power strip, such as metal sheets and terminal heads, causing their surfaces to no longer be smooth and flat, changing the original electrical properties, so that the current no longer flows along the original safe path, thereby causing leakage. In addition, when you forget to turn off the power of an electrical device and the plug of the electrical device is not fully inserted into or unplugged from the socket, the plug's pins will contact the live wire terminal and the neutral wire terminal to form a circuit, which may easily cause leakage in the socket. If you accidentally touch the socket at this time, you may get an electric shock, causing a safety accident.

[0003] As people pay more and more attention to electricity safety, leakage-proof socket strips have become a popular product. Traditional leakage-proof socket strips are mainly based on the working mechanism of leakage protectors, which mainly detect whether the line is leaking through relay protection. Under normal circumstances, the current flows from the live wire to the neutral wire, and there is no current in the ground wire, so the currents of the live wire and the neutral wire are equal. The magnetic fields generated by these two equal currents cancel each other out on the zero-sequence transformer inside the leakage protector, so there is no induced electricity on the secondary side of the transformer. When leakage occurs, that is, current passes through an inappropriate path (such as the human body or equipment parts that are grounded due to insulation damage), the currents of the live wire and the neutral wire are no longer equal, causing the secondary side of the zero-sequence transformer to generate induced current, triggering the circuit breaker to cut off the power supply. However, this type of anti-leakage power strip has high production costs and high sales prices. In order to save money, some low-income families still choose ordinary power strips. How to improve the anti-leakage performance of ordinary power strips, reduce the production cost of the product while improving the convenience and safety of access power sockets, and make the anti-leakage power strip a product that all families can afford, has become one of the important research and development directions for power strip improvement. Summary of the invention

[0004] The present invention aims at solving the above problems in the prior art and provides an electric shock protection power socket.

[0005] In order to achieve the above-mentioned purpose, the invention adopts the following technical measures:

[0006] An electric shock-proof power socket comprises an insulating inner shell, wherein a live wire installation cavity and a neutral wire installation cavity which are independent of each other are arranged inside the inner shell, an inner universal plug hole is arranged on the top, and an inner drainage hole is arranged on the bottom;

[0007] The wiring terminal is installed in the live wire installation cavity and the neutral wire installation cavity, and includes a movable switch spring, and the switch spring blocks the plugging direction of the inner universal jack;

[0008] The moving contact is mounted on the switch shrapnel;

[0009] A static contact, installed in the live wire installation cavity and the neutral wire installation cavity, and arranged opposite to the moving contact;

[0010] An insulating outer shell, with an external universal jack on the top and an external drainage hole on the bottom, and the insulating inner shell is detachably installed inside;

[0011] When the power supply is connected, the static contact and the moving contact are separated, and the wiring terminal is not energized; when the switch spring causes the static contact to contact the moving contact under the push of the plug, the wiring terminal is energized.

[0012] Preferably, the wiring terminal further comprises a plug-in slot and a conductive frame, wherein the plug-in slot is arranged on the conductive frame, the switch spring is connected to the bottom end of the conductive frame, and the plug-in slot is installed between the inner universal socket and the switch spring.

[0013] Preferably, the plug-in slot is connected to a tension buffer slot, and bearing surfaces are respectively arranged on both outer sides of the plug-in slot, and the body of the switch spring is perpendicular to the slot direction of the plug-in slot.

[0014] Preferably, the connection terminal is formed by bending a metal conductive sheet.

[0015] Preferably, a terminal installation support frame is provided in both the live wire installation cavity and the neutral wire installation cavity, and a vertically arranged limit stop bar and a support column are provided on at least one inner side of the live wire installation cavity and the neutral wire installation cavity.

[0016] Preferably, the terminal installation support frame includes a first support block, a second support block and a third support block, the height of the first support block is lower than the height of the second support block, and the height of the second support block is lower than the height of the third support block.

[0017] Preferably, a ground wire installation cavity is further provided in the insulating inner shell, and the two opposite side walls of the ground wire installation cavity are provided with limit grooves, and a first support block and a second support block are provided between the two limit grooves, and the first support block and the second support block are both provided with positioning columns.

[0018] Preferably, at least two insulating inner shells are installed in the insulating outer shell, and the wiring terminals of the insulating inner shells are connected in series through conductive terminals.

[0019] Preferably, a water-isolating pad is provided in the insulating shell, and the water-isolating pad is arranged between the inner universal socket and the outer universal socket.

[0020] Preferably, a mounting groove for mounting the insulating inner shell is provided in the insulating outer shell, and a supporting bracket is provided in the mounting groove.

[0021] The beneficial effects of the present invention are:

[0022] 1. The present invention discloses an anti-electric shock power socket. Even when the socket is connected to a power source, as long as the electrical plug is not fully inserted into the wiring terminal, the static contact and the moving contact are not in contact, the wiring terminal will not be energized, and thus the socket will not be energized, thereby reducing the possibility of leakage. Only when the plug is fully inserted into the wiring terminal will the plug push the switch spring to offset the moving contact to the side of the static contact, so that the moving contact contacts the static contact, thereby realizing the connection of the socket circuit, thereby greatly improving the safety of the socket; moreover, the wiring terminal has a simple structure, is easy to produce, and has a low production cost, thereby improving the convenience and safety of the power socket while reducing the production cost of the product;

[0023] 2. Since the plug is required to directly push the switch spring to realize the contact between the moving contact and the static contact, the sensitivity of power off and power on is high, which can reduce the possibility of accidental touch and leakage. The wiring terminals are installed in the independent live wire installation cavity and neutral wire installation cavity respectively. Even if water enters the socket, it will enter the independent live wire installation cavity and neutral wire installation cavity respectively, that is, the live wire and the neutral wire will not be connected because of water. When water enters, each cavity is independently diverted, and no loop will be formed in the socket to cause leakage and short circuit;

[0024] 3. Assemble the live wire and the neutral wire in an insulating inner shell to form an independent power module, and then install it in the insulating outer shell. The installation method is simpler, which is conducive to improving production efficiency. The modular assembly method has a higher installation qualification rate. In addition, an inner drainage hole is provided at the bottom of the insulating inner shell, and an outer drainage hole is provided at the bottom of the insulating outer shell. When water enters the power socket, the water can be discharged from the outer drainage hole to prevent the socket from being soaked by water, causing the circuit in the socket to be turned on and leakage or short circuit to occur. A water-proof pad is provided in the insulating outer shell, which can effectively reduce the water from entering the live wire installation cavity and the neutral wire installation cavity from the inner universal jack. The power socket is more waterproof and safe to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of an anti-electric shock power socket of the present invention;

[0026] Figure 2An exploded view of an anti-electric shock type power socket of the present invention;

[0027] Figure 3 It is a schematic diagram of the installation of a connection terminal of an electric shock protection type power socket of the present invention;

[0028] Figure 4 This is a schematic diagram of the wiring terminal structure of an anti-electric shock type power socket of the present invention;

[0029] Figure 5 An exploded view of an insulating inner shell of an anti-electric shock type power socket of the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the inner shell upper cover of the insulating inner shell of the anti-electric shock type power socket of the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the lower cover of the inner shell of the insulating inner shell of the anti-electric shock type power socket of the present invention;

[0032] Figure 8 It is a schematic diagram of the installation of a moving contact and a static contact of an anti-electric shock type power socket of the present invention;

[0033] Fig. 9 It is a schematic diagram of the upper cover structure of the insulating shell of the anti-electric shock type power socket of the present invention;

[0034] Fig.10 The present invention is a schematic diagram of a lower cover structure of an insulating shell of an electric shock protection type power socket. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] refer to Figure 1-Figure 10 The present application claims protection for an anti-electric shock power socket, comprising an insulating inner shell 1, a wiring terminal 2, a moving contact 3 and a static contact 5 matched with the moving contact 4 installed in the insulating inner shell 1, wherein the moving contact 3 is installed on the wiring terminal 2, and the wiring terminal 2 is used as the live wire and / or neutral wire of the power socket, and the insulating inner shell 1 is detachably installed in the insulating outer shell 5. The wiring terminal 2 is preferably a conductive elastic yellow phosphor copper part, the moving contact 3 and the static contact 4 are preferably silver contacts, and the static contact 4 is installed on a metal conductive frame 41, which is fixedly installed on the insulating inner shell 1, and the metal conductive frame 41 is also preferably a copper conductive frame.

[0039] Specifically, the insulating outer shell 5 is connected to a power line, and the power line is electrically connected to the wiring terminal 2. When an insulating inner shell 1 is detachably installed in the insulating outer shell 5, the power socket serves as an extension of the fixed power socket, so that electrical appliances far away from the fixed power socket can also be connected to the power supply; when at least two insulating inner shells 1 are detachably installed in the insulating outer shell 5, the wiring terminals 2 of each insulating inner shell 1 and the metal conductive frame 41 are respectively connected in series through the conductive terminal 7, which can provide power access points for more electrical appliances and meet more power needs. The specific connection method is that the conductive terminal 7 is provided with multiple pieces, the live wires of each insulating inner shell 1 are connected in series through the conductive terminal 7, the neutral wires of each insulating inner shell 1 are connected in series through another conductive terminal 7, and the metal conductive frames 41 of each insulating inner shell 1 are connected in series through another conductive terminal 7. The conductive terminal 7 can specifically select copper metal conductive sheets for connecting the live wire, neutral wire, and ground wire of each insulating inner shell 1 in series, and each live wire and neutral wire are electrically connected to a main switch.

[0040] In this embodiment, the metal conductive frame 41 includes a static contact mounting surface, the static contact mounting surface is connected to an inverted L-shaped connecting frame, the end of the inverted L-shaped connecting frame is connected to an inverted L-shaped connecting plate, the inverted L-shaped connecting frame is used to snap on the side wall of the insulating inner shell 1, and the inverted L-shaped connecting plate is located outside the insulating inner shell 1, so that the static contact 4 can be stably installed in the insulating inner shell 1.

[0041] The insulating inner shell 1 is provided with an independent live wire installation cavity 11 and a neutral wire installation cavity 12. The top is provided with an inner universal socket 14, and the bottom is provided with an inner drain hole 13. Two of the wiring terminals 2 are installed in any one of the insulating inner shells 1. The two wiring terminals 2 are installed in the live wire installation cavity 11 and the neutral wire installation cavity 12 respectively for serving as the live wire and the neutral wire. The wiring terminal 2 includes a switch spring piece 21. The switch spring piece 21 blocks in the insertion direction of the inner universal socket 14. The moving contact 3 is installed on the switch spring piece 21. Static contacts 4 are installed in both the live wire installation cavity 11 and the neutral wire installation cavity 12. The static contact 4 is arranged opposite to the moving contact 3. Even if water enters the socket, it will enter the independent live wire installation cavity 11 and neutral wire installation cavity 12 respectively. That is, the live wire and the neutral wire will not be connected due to water. When water enters, each cavity has independent diversion, and no loop will be formed in the socket to cause electric leakage and short circuit. In some embodiments, only one of the wiring terminals 2 is installed in the insulating inner shell 1. The wiring terminal 2 is installed in the live wire installation cavity 11 or the neutral wire installation cavity 12 for serving as the live wire or the neutral wire. Correspondingly, the static contact 4 is arranged correspondingly in the live wire installation cavity 11 or the neutral wire installation cavity 12. When the power is connected, the static contact 4 and the moving contact 3 are separated, and the wiring terminal 2 is not energized. When the switch spring piece 21 makes the static contact 4 contact the moving contact 3 under the push of the plug, the wiring terminal 2 is energized.

[0042] The insulating inner shell 1 is provided with a universal socket with three holes or two holes. Correspondingly, the insulating outer shell 5 is provided with a corresponding three-hole universal socket or a two-hole outer universal socket 51. Therefore, a ground wire can also be installed in the insulating inner shell 1. Correspondingly, a ground wire installation cavity 18 is also provided in the insulating inner shell 1. Limiting grooves 181 are provided on both opposite side walls in the ground wire installation cavity 18. A first support block 182 and a second support block 183 are arranged between the two limiting grooves 181. The first support block 182 and the second support block 183 are both provided with positioning posts 184. The ground wire installation cavity 18 is distributed in a triangle with the live wire installation cavity 11 and the neutral wire installation cavity 12. The ground wire installation cavity 18 can adopt a U-shaped groove structure, a square groove structure, an angle groove structure or other regular groove body structures.

[0043] Specifically, both side ends of the ground wire are clamped or directly placed on the two limiting grooves 181. The cross section of the limiting groove 181 is an L-shaped or C-shaped structure. In this embodiment, the first support block 182 and the second support block 183 are arranged in the ground wire installation cavity 18. The first support block 182 and the second support block 183 are arranged between the two limiting grooves 181. The tops of the first support block 182 and the second support block 183 are flush with the bottom of the limiting groove 181. The first support block 182 and the second support block 183 are used to support the ground wire. The positioning posts 184 cooperate with the positioning holes on the ground wire to ensure that the ground wire is accurately fixed and prevent the ground wire from shifting under force.

[0044] The first support block 182 and the second support block 183 can be a vertical bar structure with a rectangular cross-section or a vertical bar structure with an arc-shaped cross-section. When the ground wire is installed, the bottom of the ground wire contacts the top of the first support block 182 and the second support block 183, and the contact point of the ground wire is located between the first support block 182 and the second support block 183.

[0045] The insulating inner shell 1 includes an inner shell upper cover and an inner shell lower cover, and the inner shell upper cover is connected to the inner shell lower cover by a snap-fitting manner. Specifically, at least two outer side walls of the inner shell upper cover are provided with snap-fitting grooves, and a snap-fitting block is provided in the snap-fitting groove. Both sides of the inner shell lower cover are provided with plug-in blocks that match the snap-fitting grooves, and the inner side of the plug-in block is provided with a snap-fitting groove that matches the snap-fitting block. When the inner shell upper cover is connected to the inner shell lower cover, the plug-in block is aligned with the snap-fitting groove and inserted, and the snap-fitting block is snapped on the snap-fitting groove. The inner universal jack 14 on the inner shell upper cover is aligned with the live wire installation cavity 11, the neutral wire installation cavity 12, and the ground wire installation cavity 18, respectively.

[0046] The live wire installation cavity 11 and the neutral wire installation cavity 12 are both provided with a terminal installation support frame 15, and at least one inner side of the live wire installation cavity 11 and the neutral wire installation cavity 12 is provided with a vertically arranged limit stop bar 16 and a support column 17. The wiring terminal 2 is installed on the support frame 15, and the bearing surface 26 is overlapped on the support frame 15. Preferably, the bearing surface 26 matches the bearing surface of the support frame 15, and is used to vertically install the plug-in slot 24 in the insulating inner shell 1. In this embodiment, the bearing surface 26 is a horizontal plane. In other embodiments, the bearing surface 26 can also be an inclined surface or a curved surface. The terminal installation support frame 15 includes a first bracket block 151, a second bracket block 152 and a third bracket block 153. The height of the first bracket block 151 is lower than the height of the second bracket block 152, and the height of the second bracket block 152 is lower than the height of the third bracket block 153.

[0047] The first support block 151 adopts a T-shaped structure, the second support block 152 adopts a cross-shaped structure, a limiting slot is provided in the middle of the second support block 152, and the top of the third support block 153 is an inclined surface, on which a slot is provided. The first support block 151, the second support block 152 and the third support block 153 are used to support the live wire or the neutral wire, so that the live wire or the neutral wire is suspended above the bottom of the live wire installation cavity 11 and the neutral wire installation cavity 12 respectively, so that the accumulated water will not soak the live wire or the neutral wire. In addition, in order to further limit the neutral wire or the live wire, ensure the installation accuracy, and prevent the live wire and the neutral wire from shifting, at least two vertically arranged limiting bars 16 are provided on the inner wall of one side of the live wire installation cavity 11 and the neutral wire installation cavity 12, and the limiting bars 16 can be provided with two, three or even more, and the limiting bars 16 can be vertical bars, T-shaped vertical bars or cylindrical bars. When the wiring terminal 2 is installed in the live wire installation cavity 11 and the neutral wire installation cavity 12 , the limit stop bar 16 blocks the side of the wiring terminal 2 , which can well prevent the wiring terminal 2 from shifting.

[0048] Two static terminal fixing slots are provided on one side of the inner shell lower cover, and the bottom of the static terminal fixing slot is higher than the top of the third bracket 153. The metal conductive frame 41 is respectively fixed to the static terminal fixing slot, and the inner shell upper cover is changed to the upper end of the inner shell lower cover, and the bottom of the side of the inner shell upper cover is pressed on the static terminal fixing slot, thereby pressing the metal conductive frame 41.

[0049] In order to further enhance the stability of the insulating outer shell 5 structure and ensure that the insulating inner shell 1 can be well protected, the inner side walls of the inner shell upper cover are respectively provided with a plurality of reinforcing ribs 121, and the reinforcing ribs 121 are vertically arranged. The bottom of the reinforcing rib 552 is provided with a notch that cooperates with the edge of the inner shell lower cover. When the inner shell upper cover is connected to the inner shell lower cover, the notch of the reinforcing rib 552 is stuck on the edge of the inner shell lower cover.

[0050] In addition, a limit mounting column 19 and a terminal limit pressure block 10 are provided at the bottom of the inner shell upper cover. A limit block with an inclined bottom surface is provided on one side of the terminal limit pressure block 10. At least two limit mounting columns 19 are provided, which are respectively arranged at the edge positions of the inner shell upper cover, and preferably three or more are provided, which are used to support the edges of the inner shell upper cover to enhance the strength of the inner shell upper cover. Two terminal limit pressure blocks 10 are provided, which are symmetrically arranged and are used to limit and fix the live wire and the neutral wire respectively. The bottom surface of the limit block is parallel to the switch spring 21.

[0051] The wiring terminal 2 also includes a tension buffer groove 22, a plug-in groove 24, a conductive frame 25 and a bearing surface 26. The tension buffer groove 22 and the plug-in groove 24 are arranged on the conductive frame 25. The plug-in groove 24 is connected to the tension buffer groove 22. The switch spring piece 21 is connected to the bottom end of the conductive frame 25. The bearing surface 26 is respectively connected to the two outer sides of the plug-in groove 24. The plug-in groove 24 is installed between the inner universal jack 14 and the switch spring piece 21. The wiring terminal 2 is installed in the live wire installation cavity 11 and the neutral wire installation cavity 12 through the bearing surface 26. The tension buffer groove 22 can make the metal conductive sheets on both sides of the plug slot 24 have better elastic tensioning force. Therefore, the groove width of the plug slot 24 can be fine-tuned according to the plug pin. When the plug is inserted into the plug slot 24, the metal conductive sheets on both sides of the plug slot 24 can move outward to increase the width of the plug slot 24. The metal conductive sheets can be tightly pressed against one side of the plug under the elastic action. When the plug is pulled out of the plug slot 24, the metal conductive sheets on both sides of the plug slot 24 are reset under the elastic action, so that the plug slot 24 and the plug are more compatible.

[0052] In detail, in order to reduce production costs, improve production efficiency, and improve the problem of complex structure of traditional wiring terminals, the wiring terminal 2 in the present application is formed by bending a metal conductive sheet, and the body of the switch spring 21 is perpendicular to the slot direction of the plug slot 24. The metal conductive sheets on both sides of the upper end of the plug slot 24 are folded outwards of the slot, forming two inclined guide surfaces 23 on the front side of the plug slot 24. When the wiring terminal is installed in the insulating inner shell 1, the guide surface is located on the inner side of the inner universal socket 14 of the insulating inner shell 1, and the plug slot 24 is aligned with the inner universal socket 14, which is conducive to the accurate insertion of the plug pins into the plug slot 24. The conductive frame 25 is an L-shaped structure, the end face of the conductive frame 25 is perpendicular to the body of the switch spring 21, there is a distance difference between the plug slot 24 and the switch spring 21, the switch spring 21 includes a movable end and a fixed end, the fixed end is connected to the bottom of the conductive frame 21, the angle between the movable end and the fixed end is an obtuse angle, and the switch spring 21 can improve the installation stability of the conductive frame 25. The switch spring 21 is located between the plug slot 24 and the static contact 4, and the static contact 4 is located at the end of the moving path of the moving contact 3. It is worth noting that in other embodiments, the switch spring 21 can be welded to the bottom of the conductive frame 25.

[0053] The moving contact 3 is installed at the movable end of the switch spring piece 21. The movable end of the switch spring piece 21 can rotate with the fixed end as a fulcrum under the action of force, thereby driving the moving contact 3 to move. The plug-in slot 24 is a through slot. The movable end of the switch spring piece 21 extends to one side of the plug-in slot 24, and the body of the switch spring piece 21 is perpendicular to the slot direction of the plug-in slot 24. The switch spring piece 21 is located between the plug-in slot 24 and the static contact 4, and the static contact 4 is located at the end point of the moving path of the moving contact 3. When the plug is inserted into the plug slot 24, since the movable end of the switch spring 21 is blocked in the plug slot 24 with the slot facing upward, the plug can contact the movable end of the switch spring 21, providing thrust for the movable end of the switch spring 21, so that the movable end of the switch spring 21 can drive the moving contact 3 to move. When the plug is fully inserted into the plug slot 24, the moving contact 3 moves to the end of the moving path and contacts the static contact 4. At this time, the circuit in the socket is turned on and power can be supplied to the plug. If the plug is not fully inserted into the plug slot 24, the moving contact 3 does not move to the end of the moving path, and the static contact 4 does not contact the moving contact 3. At this time, the circuit in the socket is in a disconnected state, and the socket is still in a power-off state.

[0054] The fixed end and the movable end are integrally formed, the movable end is higher than the fixed end, the movable end includes an inclined pressure plate, one end of the inclined pressure plate close to the fixed end is folded downward and connected to the fixed end, the moving contact 3 is installed at one end of the inclined pressure plate away from the fixed end, and the folding angle of the inclined pressure plate is greater than 120°. The plug pins of the plug are inserted into and pass through the plug slot 24 and abut against the upper end of the inclined pressure plate. By applying pressure to the inclined pressure plate, the inclined pressure plate is elastically pressed down, so that the moving contact 3 is synchronously pressed down, and finally contacts with the static contact 4 to connect the circuit.

[0055] The insulating shell 5 includes an upper shell cover 55 and a lower shell cover 56. The upper shell cover 55 is provided with an external universal jack 51, and the external universal jack 51 corresponds to the internal universal jack 14 of the insulating inner shell 1 one by one. The insulating inner shell 1 is connected with the insulating shell 5 through the internal universal jack 14 and the internal drainage hole 13. The bottom of the lower shell cover 56 is provided with an external drainage hole 42. The insulating inner shell 1 is clamped in the mounting groove 53 of the lower shell cover 56. The mounting groove 53 is provided with a supporting bracket 54. The mounting groove 53 is adapted to the insulating inner shell 1. The insulating inner shell 1 is clamped on the mounting groove 53. The supporting bracket 54 is supported at the bottom of the insulating inner shell 1, so that the bottom of the insulating inner shell 1 does not contact the bottom of the mounting groove 53, which is conducive to the accumulated water flowing out of the insulating inner shell 1 and the insulating shell 5.

[0056] The support bracket 54 can be bonded, welded or clamped in the installation groove 53. The support bracket 54 can adopt a T-shaped structure, an H-shaped structure, an O-shaped structure, an I-shaped structure, a cross-shaped structure or an R-shaped structure, or an E-shaped structure. The top of the support bracket 54 is horizontal. Preferably, the support bracket 54 and the lower cover 56 of the outer shell are integrally formed. It is worth mentioning that the support bracket 54 preferably adopts a symmetrical structure with good structural stability, which is conducive to ensuring that the insulating inner shell 1 maintains stability.

[0057] The number of the mounting grooves 53 is usually the same as the number of the insulating inner shell 1. The outer shell cover 55 is provided with a limiting groove body corresponding to the mounting grooves 53 one by one, and the groove body is adapted to the insulating inner shell 1. When the insulating inner shell 1 is snapped on the mounting grooves 53, the outer shell cover 55 is covered on the upper end of the insulating inner shell 1, and the limiting groove body cooperates with the mounting grooves 53 up and down to further fix the insulating inner shell 1.

[0058] A water-proof pad 6 is provided in the insulating shell 5, and the water-proof pad 6 is arranged between the inner universal socket 14 and the outer universal socket 51. The water-proof pad 3 is preferably an insulating rubber pad, and a corresponding universal socket is provided on the water-proof pad 3, which can effectively reduce the water from entering the power socket body through the universal socket, and the power socket is more waterproof and safe to use.

[0059] The total area of ​​the outer drainage hole 42 and the inner drainage hole 13 is greater than the total area of ​​the outer universal jack 51. Water entering the insulating shell 5 can be discharged from the insulating shell 5 through the outer drainage hole 42. Water entering the insulating inner shell 1 can be discharged to the mounting groove 53 in the insulating shell 5 through the inner drainage hole 13, and then discharged from the insulating shell 5 through the outer drainage hole 42. The power socket has good waterproof effect and safe electricity use effect.

[0060] In addition, at least two strength-enhancing columns are provided in the insulating shell 5. The interior of the strength-enhancing columns is hollow. Heat dissipation holes are provided at the bottom of the strength-enhancing columns. Dust-proof baffles are provided on the heat dissipation holes.

[0061] As a preferred solution, a limit buckle 551 is provided on the inner side of the upper shell cover 55, and a slot 561 is provided on the side of the lower shell cover 56 to cooperate with the limit buckle 551. The upper shell cover 55 and the lower shell cover 56 are detachably connected by combining the limit buckle 551 with the slot 561. In addition, in some embodiments, in order to further improve the stability of the connection between the upper shell cover 55 and the lower shell cover 56, the upper shell cover 55 and the lower shell cover 56 can also be connected by screws.

[0062] The bottom of the housing lower cover 56 may also be provided with a supporting pad 57, which can support the housing lower cover 56 so that the housing lower cover 56 can have a height difference with the placement surface when the power socket is placed, which is beneficial to the drainage and heat dissipation of the power socket. The supporting pad 57 can be integrally formed with the housing lower cover 56, and can also be preferably an insulating rubber pad or an insulating sponge pad. The supporting pad 57 can also be set on the screw hole of the mounting screw, which can seal the screw in the screw hole to reduce the possibility of the screw being corroded.

[0063] The above contents are further detailed descriptions of the invention in combination with specific preferred implementation methods, and it cannot be determined that the specific implementation of the invention is limited to these descriptions. For ordinary technicians in the technical field to which the invention belongs, they can make several simple deductions or substitutions without departing from the inventive concept, which should be regarded as falling within the scope of protection of the invention.

Claims

1. An anti-electric shock power socket, characterized in that: include An insulating inner shell (1) is provided with a mutually independent live wire installation cavity (11) and a neutral wire installation cavity (12), an inner universal plug hole (14) is provided at the top, and an inner drainage hole (13) is provided at the bottom; A wiring terminal (2) is installed in the live wire installation cavity (11) and the neutral wire installation cavity (12), and comprises a movable switch spring (21), wherein the switch spring (21) blocks the plugging direction of the inner universal socket (14); A moving contact (3) mounted on the switch spring (21); A static contact (4) is installed in the live wire installation cavity (11) and the neutral wire installation cavity (12), and is arranged opposite to the moving contact (3); An insulating outer shell (5) having an outer universal plug hole (51) on the top and an outer drainage hole (52) on the bottom, and the insulating inner shell (1) is detachably mounted inside; When the power supply is connected, the static contact (3) and the moving contact (4) are separated, and the wiring terminal (2) is not energized; when the switch spring (21) is pushed by the plug to make the static contact (3) contact with the moving contact (4), the wiring terminal (2) is energized.

2. The anti-electric shock power socket according to claim 1, characterized in that: The wiring terminal (2) further comprises a plug-in slot (24) and a conductive frame (25), wherein the plug-in slot (24) is arranged on the conductive frame (25), a switch spring sheet (21) is connected to the bottom end of the conductive frame (25), and the plug-in slot (24) is installed between the inner universal socket (14) and the switch spring sheet (21).

3. The anti-electric shock power socket according to claim 2, characterized in that: The plug-in slot (24) is connected to a tension buffer slot (22), and two outer sides of the plug-in slot (24) are respectively provided with bearing surfaces (26), and the body of the switch spring (21) is perpendicular to the slot direction of the plug-in slot (24).

4. The anti-electric shock power socket according to claim 2 or 3, characterized in that: The connection terminal (2) is formed by bending a metal conductive sheet.

5. The anti-electric shock power socket according to claim 1, characterized in that: A terminal installation support frame (15) is provided in both the live wire installation cavity (11) and the neutral wire installation cavity (12), and a vertically arranged limit stop bar (16) and a support column (17) are provided on at least one inner side of the live wire installation cavity (11) and the neutral wire installation cavity (12).

6. The anti-electric shock power socket according to claim 5, characterized in that: The terminal installation support frame (15) comprises a first support block (151), a second support block (152) and a third support block (153); the height of the first support block (151) is lower than the height of the second support block (152), and the height of the second support block (152) is lower than the height of the third support block (153).

7. The anti-electric shock power socket according to claim 1, characterized in that: A ground wire installation cavity (18) is also provided in the insulating inner shell (1), and two opposite side walls in the ground wire installation cavity (18) are provided with limiting grooves (181), a first support block (182) and a second support block (183) are provided between the two limiting grooves (181), and the first support block (182) and the second support block (183) are both provided with positioning columns (184).

8. The anti-electric shock power socket according to claim 1, characterized in that: At least two insulating inner shells (1) are installed in the insulating outer shell (5), and the connection terminals (2) of the insulating inner shells (1) are connected in series via conductive terminals (7).

9. The anti-electric shock power socket according to claim 1, characterized in that: A water-isolating pad (6) is provided inside the insulating shell (5), and the water-isolating pad (6) is arranged between the inner universal socket (14) and the outer universal socket (51).

10. The anti-electric shock power socket according to claim 1, characterized in that: The insulating outer shell (5) is provided with a mounting groove (53) for mounting the insulating inner shell (1), and a supporting bracket (54) is provided in the mounting groove (53).

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