An intelligent safety socket

Abstract

An intelligent safety socket uses the driving force of the plug insertion to drive the internal structure to change, achieving the purpose of locking the plug and connecting the circuit. The present invention has the following characteristics: 1) Double-press switch, that is, the plug is pressed in to turn on the power, and pressing again to bounce back turns it off; 2) Safe power-on, when the plug or finger touches the electrode plate, there is no power-on, and the power is only turned on when the plug is pushed to the end, and there is no risk of electric shock during the insertion and extraction process; 3) After the plug is pulled out, both the push block and the electrode plate are locked, the circuit is disconnected, and there is no risk of electric shock; 4) Labor-saving, easy to insert, suitable for the elderly and the weak; 5) The power-on contact surface is a press-fit contact, with excellent electrical conductivity, the plug terminal is tightly held, not easy to fall off, ensuring safe use.

Description

Technical Field

[0001] The present invention relates to the technical field of sockets, and particularly to an intelligent power-on and -off safety socket. Background Art

[0002] With the development of technology, sockets have become essential tools that people use frequently. However, the currently used sockets face several embarrassing defects: poor clamping force, loose or detached plugs; poor power connection or even fire, frequent accidents of damaging electrical appliances; exposed live electrodes causing electric shock accidents; difficult to press, making it difficult for the elderly and the weak to use; electric shock when fingers touch the plug terminals during use; and so on. The existing socket designs have been criticized for a long time. The pace of the times is giving rise to industry changes, and new designs are expected to light up the vision and sweep away the long-standing problems. Summary of the Invention

[0003] This application provides an intelligent safety socket to solve the above problems.

[0004] To achieve the above object, the present invention provides an intelligent safety socket, which includes a push block, a limit pin, a return spring 1, a positioning pin, an electrode sheet, a return spring 2, a bow-shaped buckle, a connecting sleeve, a conductive anvil, a wire, an elastic rubber pad, a box body, a self-locking spring hook, a socket box, and a box cover. The electrode sheet is sleeved with the return spring 2 and connected to the connecting sleeve. The bow-shaped buckle is connected to the connecting sleeve and partially implanted into the connecting sleeve. The bottom of the connecting sleeve is provided with a conductive anvil, the conductive anvil is connected to the wire, the conductive anvil is connected to the elastic rubber pad. The electrode sheet, the return spring 2, the bow-shaped buckle, the connecting sleeve, the conductive anvil, the elastic rubber pad and the wire are combined into an energizing unit. The energizing unit is installed on the bottom surface of the box body. The self-locking spring hooks are implanted on both sides of the box body. The push block enters the box body from the opening. The positioning pin passes through the return spring 1 to connect the push block and the box body. The limit pin passes through the box body and the push block. The self-locking spring hook is buckled with the self-locking groove on the side surface of the push block.

[0005] The energizing unit includes an electrode sheet, a return spring 2, a bow-shaped buckle, a connecting sleeve, a conductive anvil, an elastic rubber pad and a wire. Among them, the connecting sleeve is made of insulating material, the electrode sheet has conductivity, is an outer surrounding type electrode sheet, the internal dimension is larger than the plug terminal, has a driven inclined surface, and has an energizing contact surface at the bottom. When receiving the extrusion force of the push block, it can hold the plug terminal tightly. The energizing contact surface is connected to the conductive anvil to conduct electricity. After the extrusion force of the push block is released, it is pushed by the return spring 2 to disengage from the conductive anvil to cut off the power supply, and it opens itself to restore the space. Further, the inner structure of the electrode sheet can be a plane or a cylindrical surface according to the shape change of the plug terminal, and its driven inclined surface changes accordingly. The connecting sleeve is connected to the bow-shaped buckle, and the bow-shaped buckle prevents the electrode sheet from moving out excessively. The connecting sleeve has heat dissipation grooves for exhaust heat dissipation and wire routing. According to the needs of the plug, the energizing unit is two groups or three groups.

[0006] The conductive anvil, elastic rubber pad and wire are fixed as a whole, the conductive anvil and the wire are welded into a passage, most of the bottom of the conductive anvil is fixed in the elastic rubber pad, and the upper surface with electricity is exposed; the elastic rubber pad has insulation and elasticity to ensure the downward buffering of the electrode sheet, and the electrical contact surface has elastic pressure to ensure safe insulation outside the circuit; the wire is connected to the main circuit in the socket.

[0007] The box body is a rectangular box body with an open side, which is hollow and made of insulating material. It has heat dissipation holes, assembly grooves, positioning pin holes, self-locking assembly holes, stoppers, and limit grooves. The heat dissipation holes are used for exhaust heat dissipation and wiring. The assembly groove matches the bottom of the connecting sleeve and is used to assemble the power-on unit. The positioning pin hole matches the positioning pin and is used to position with the push block plane. There is a self-locking spring hook in the self-locking assembly hole, which corresponds to the self-locking groove of the push block for easy assembly. The stopper matches the box cover, and the limit groove matches the limit pin.

[0008] The push block has an active inclined surface, a positioning pin hole, a spring position, a limit pin hole, a stop groove, a self-locking groove, and a socket, and is made of insulating material. The active inclined surface is located in a cavity cut out of the push block and matches the driven inclined surface of the electrode sheet. When the push block is pushed downward by the thrust of the plug, the electrode sheet is pushed downward and closed to hold the plug terminal tightly. The inclined surface changes accordingly with the electrode sheet and can be a plane or a conical surface. The number of cavities depends on the number of plug terminals. The positioning pin hole and the positioning pin are slidably matched to ensure that the push block moves in a straight line and is positioned with the plane of the box body. The spring position contains a reset spring 1, and the limit pin is installed in the limit pin hole. When the push block moves up to the top, the stop groove is stuck in the bow buckle, and the self-locking groove is buckled with the self-locking spring hook to form a self-locking structure, and the socket is used for the plug terminal to enter. The push block is positioned by the positioning pin plane when it is installed in the box, and the operating range is limited in the direction of movement by the limit pin.

[0009] The self-locking structure is composed of a self-locking spring hook and a self-locking groove, wherein the self-locking groove is a groove located on the side wall of the push block, and is defined with a locking point and an opening point. When the plug is inserted and pushes the push block downward, the self-locking spring hook moves upward along the inclined groove from the opening point, and falls into the locking point under the action of elastic force after passing the highest point, hooking the push block in a working state, and the power-on circuit is closed; when disconnecting, the plug is pressed, the push block moves downward slightly, and the self-locking spring hook slides from the locking point over the highest point into the straight groove under the action of elastic force, the reset spring 1 pushes the push block upward, the self-locking spring hook slides down into the opening point, and the power-on circuit is disconnected (the upward and downward movements are relative movements, and actually only the push block is moving).

[0010] The two bow-shaped buckles are connected to the connecting sleeve in a group and stand opposite to each other, and a part of them is fixed in the connecting sleeve, shaped like a bow, with high strength and certain elasticity. When not subject to external force, the bow head naturally opens into a trumpet shape, the bow head is stuck in the stop groove of the push block, and the bow tail hooks the rising electrode sheet, and at the same time locks the push block and the electric plate into a safe state; when the plug is inserted, the bow body is squeezed, the two bow-shaped buckles stand upright in parallel, and the electrode sheet and the push block are unlocked and move downward to enter the working state.

[0011] Furthermore, the present invention discloses the functions of two-pole locking, namely, power-on locking and power-off locking. When the plug is pulled out, the socket cannot be pushed, and at the same time, the electrode piece is powered off. Even if a non-special tool (shaped like a plug terminal) enters the socket, the electrode piece cannot be easily pushed to connect the circuit. This is the power-off locking. When working, after the plug terminal is completely inserted into the socket like a key, the lock of the bow buckle is opened, the push block and the electrode piece move down to their positions, the self-locking spring hook enters the locking point, the socket enters the working state, the plug terminal is tightly locked, and the socket is locked by the self-locking spring hook. This is the power-on locking.

[0012] Furthermore, the present invention has the following characteristics:

[0013] 1) Double-press switch, that is, press in to turn on the power, and press again to turn off;

[0014] 2) Safe power supply. When the plug or fingers touch the electrode, the power will not be supplied. The plug will be supplied only when it is pushed to the end. There is no risk of electric shock during the plugging process.

[0015] 3) After the plug is pulled out, the push block and the electrode sheet are locked, the circuit is disconnected, and there is no risk of electric shock;

[0016] 4) Easy to insert without any effort;

[0017] 5) The energized contact surface is a pressed contact with excellent conductivity and is not easy to fall off, ensuring safe use.

[0018] The push block, limit pin, reset spring 1, positioning pin, electrode sheet, reset spring 2, bow buckle, connecting sleeve, conductive anvil, wire, elastic rubber pad, box body, and self-locking spring hook are combined into a socket module, and corresponding socket modules can be formed according to the different shapes, sizes and numbers of terminals of plugs around the world. This modular solution greatly simplifies the difficulty of socket design and promotes the diversified development of the industry. At the same time, it is easy to assemble and is conducive to large-scale production and sales.

[0019] Furthermore, the socket module is provided with a stopper to match the socket box for assembly. If necessary, screw holes, studs, terminals or other positioning features can be added to the module, all of which are within the technical scope of the present invention.

[0020] Furthermore, the socket module is suitable for two-hole plugs, three-hole or multi-hole plugs and plugs of different standards around the world, including round terminal and square terminal plugs. The corresponding socket modules have the same principle, slightly different sizes and shapes, and the number of jacks varies with the number of plug terminals. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an exploded view of the structural parts of the present invention (taking a Chinese two-hole socket as an example)

[0022] Figure 2 Description of the structural features of the pushing block

[0023] Figure 3 Description of the structural parts and features of the energizing unit

[0024] Figure 4 Description of the structural features of the box body

[0025] Figure 5 Description of the self-locking structure and function

[0026] Figure 6 Screenshot of the socket box and description of related features

[0027] Figure 7 Cross-sectional view of the bow-shaped buckle standing upright when the socket is working

[0028] Figure 8 Cross-sectional view of the bow-shaped buckle locking the socket when the plug is withdrawn

[0029] Figure 9 Exploded view of the Chinese three-hole socket

[0030] Figure 10 Exploded view of the British two-hole round socket Specific implementation manners

[0031] In order to enable those skilled in the art to better understand the technical solutions in this application, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application.

[0034] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, the meanings of "a plurality" and "several" are two or more, unless otherwise specifically defined.

[0035] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementable conditions of this application. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that this application can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in this application.

[0036] The embodiments of this application are written in a progressive manner.

[0037] An intelligent safety socket, as Figure 3 shown, is a power-on unit, including electrode plates, a return spring 2, a bow-shaped buckle, a connecting sleeve, a conductive anvil, an elastic rubber pad, and a wire. These components are combined to form a smallest controllable power-on and power-off unit. One unit corresponds to one plug terminal and is fixed to the bottom of the box body by an inlay method. A push block is installed on it. The bottom surface of the push block is connected to the box body by a positioning lock and a return spring 1, and is connected by limit pins on the front and rear side walls. The limit pins can move up and down within the limit of the box body along with the push block. There are self-locking grooves and self-locking spring hooks on the left and right side walls. In this way, a socket module is completed. The socket module is fixed in the socket box and connected to the main circuit, and the socket can work.

[0038] When the plug is inserted into the socket, the plug terminal squeezes the bow-shaped buckle, forcing its flared opening to contract into a parallel and upright shape, that is, simultaneously releasing the locking of the bow-shaped buckle on the push block and the electrode plate. The plug pushes the push block downward. The active inclined plane in the inner cavity of the push block presses the driven inclined plane on the electrode plate, causing the electrode plate to close inward and hold the plug terminal tightly. When it runs in place, the power-on contact surface at the bottom of the electrode plate contacts the conductive anvil to connect the circuit; during the downward movement, the self-locking grooves and self-locking spring hooks on the left and right side walls also move relative to each other. When the self-locking spring hook enters the locking point, it locks the push block into the working state.

[0039] It should be particularly mentioned that the bottom of the conductive anvil is connected to an elastic rubber pad, which applies elastic pressure to the conductive anvil, simultaneously buffers the overshooting process when the electrode plate moves downward, and also has the function of external insulation. The overshooting process of the electrode moving downward is prepared for the self-locking spring hook to enter the locking point because the self-locking spring hook must cross the highest point to enter the locking point, and this stroke is 0.8 mm; while the overpressure amount of the electrode plate on the conductive anvil in the working state is 0.2 mm, and the buffer stroke provided by the elastic rubber pad is 1 mm.

[0040] Summary: When in the working state, the plug terminal is tightly held by an external force, obtaining a good conductive area, while ensuring that the plug is not easily loosened or detached; the forces required to insert the plug come from the return spring 1, the return spring 2, and the elastic rubber pad. The forces of all three are small. When the plug extends into the bow-shaped buckle, there is a slight resistance, but this force is short-lived and does not act on the push block. In addition, there is a gap between the electrode piece and the plug terminal when the electrode piece opens, and there is no frictional resistance.

[0041] When the plug needs to be removed, press the plug again. After the self-locking spring hook passes over the highest point, it enters the sliding track under the action of its own elastic force. The push block moves upward under the push of the return spring 1. At the same time, the return spring 2 pushes the electrode piece upward by 2 mm and stops when intercepted by the bow-shaped buckle. The circuit is disconnected, the electrode piece elastically opens, the self-locking spring hook enters the open point, and the plug is pulled out. The bow-shaped buckle opens under the action of its own elastic force. The bow head is stuck into the anti-retreat groove of the push block to lock the push block, and the bow tail hooks the electrode piece to lock synchronously. The top surface of the push block protrudes 5 mm from the surface of the socket box. At this time, the external force acting on the push block and the electrode piece remains unchanged, and there is no risk of electric shock.

[0042] Corresponding different plugs form corresponding socket modules. Different socket boxes can be designed according to needs, and diverse sockets can be assembled and matched, which are suitable for different places around the world. With its remarkable advantages and wide adaptability, it undoubtedly has a broad market prospect.

[0043] The above shows and describes 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 by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. An intelligent safety socket, characterized in that: It includes a push block, a limit pin, a return spring 1, a positioning pin, an electrode piece, a return spring 2, a bow-shaped buckle, a connecting sleeve, a conductive anvil, a wire, an elastic rubber pad, a box body, a self-locking spring hook, a socket box, and a box cover. The electrode piece is sleeved into the return spring 2 and connected to the connecting sleeve. The bow-shaped buckle is connected to the connecting sleeve and partially implanted into the connecting sleeve. The bottom of the connecting sleeve is equipped with a conductive anvil. The conductive anvil is connected to the wire. The conductive anvil is connected to the elastic rubber pad. The electrode piece, the return spring 2, the bow-shaped buckle, the connecting sleeve, the conductive anvil, the elastic rubber pad, and the wire are combined into an energizing unit. The energizing unit is installed on the bottom surface of the box body. The self-locking spring hooks are implanted on both sides of the box body. The push block enters the box body from the opening. The positioning pin passes through the return spring 1 to connect the push block and the box body. The limit pin passes through the box body and the push block. The self-locking spring hook is latched with the self-locking groove on the side surface of the push block; In the energizing unit, the electrode piece has electrical conductivity and is an outer surrounding type electrode piece. Its internal dimension is larger than the plug terminal. It has a driven inclined surface and an energizing contact surface at the bottom. When subjected to the extrusion force of the push block, it can hold the plug terminal tightly. The energizing contact surface is connected to the conductive anvil to conduct electricity. After the extrusion force of the push block is removed, it is pushed by the return spring 2 to disengage from the conductive anvil to cut off the power supply, and it opens itself to restore the space.

2. The intelligent safety socket according to claim 1, wherein the connecting sleeve is made of insulating material. The inner structure of the electrode piece changes according to the shape of the plug terminal, being a plane or a cylindrical surface, and its driven inclined surface changes accordingly. The connecting sleeve is connected to the bow-shaped buckle, and the bow-shaped buckle prevents the electrode piece from moving excessively and coming out. The connecting sleeve has heat dissipation grooves for exhausting heat and wiring. According to the needs of the plug, the energizing unit is in two groups or three groups.

3. The intelligent safety socket according to claim 2, wherein the conductive anvil, the elastic rubber pad, and the wire are fixed together as a whole. The conductive anvil and the wire are welded into a conduction path. The bottom of the conductive anvil is fixed in the elastic rubber pad, and the upper surface energizing surface is exposed. The elastic rubber pad has insulation and elasticity to ensure the downward buffering of the electrode piece, and the energizing contact surface has elastic pressure. The wire is connected to the main circuit in the socket box.

4. The intelligent safety socket according to claim 1, wherein the box body is a rectangular box body with one open side, hollow, made of insulating material, and has heat dissipation holes, assembly grooves, positioning pin holes, self-locking assembly holes, rabbets, and limit grooves. Among them, the heat dissipation holes are used for exhausting heat and wiring. The assembly groove matches the bottom of the connecting sleeve and is used for assembling the energizing unit. The positioning pin hole matches the positioning pin and is used for planar positioning with the push block. The self-locking spring hook is in the self-locking assembly hole and corresponds to the self-locking groove of the push block. The rabbet matches the box cover, and the limit groove matches the limit pin.

5. The intelligent safety socket according to claim 1, wherein the push block has an active inclined surface, a positioning pin hole, a spring position, a limit pin hole, a backstop groove, a self-locking groove, and a jack, and is made of insulating material. The active inclined surface is located in a cavity cut out inside the push block and matches the driven inclined surface of the electrode piece. When the push block is pushed downward by the plug, it pushes the electrode piece downward and closes to tightly hold the plug terminal; the inclined surface changes accordingly with the electrode piece, becoming a plane or a conical surface, and the number of cavities is determined according to the number of plug terminals; the positioning pin hole is in sliding fit with the positioning pin to ensure the linear movement of the push block and its positioning with the box body plane; a return spring 1 is hidden in the spring position, a limit pin is installed in the limit pin hole, when the push block moves upward to the top, the backstop groove is caught by the bow-shaped buckle, and the self-locking groove is buckled with the self-locking spring hook to form a self-locking structure, and the jack is for the plug terminal to enter; the push block is installed in the box body and positioned by the positioning pin plane, and the limit pin restricts the operating range in the moving direction. The self-locking structure is composed of a self-locking spring hook and a self-locking groove. The self-locking groove is a groove located on the side wall of the push block, and is defined with a locking point and an opening point. When the plug is inserted and pushes the push block downward, the self-locking spring hook moves relatively upward along the inclined groove from the opening point, and after passing over the highest point, it falls into the locking point under the action of elastic force, hooking the push block in the working state, and the power-on circuit is closed; when disconnecting, press the plug, the push block moves downward, the self-locking spring hook slides over the highest point from the locking point under the action of elastic force and slides into the straight groove, and the return spring 1 pushes the push block upward, and the self-locking spring hook slides downward into the opening point, and the power-on circuit is disconnected.

6. The intelligent safety socket according to claim 1, wherein two bow-shaped buckles are connected to the connecting sleeve as a group and face each other, and a part of them is fixed in the connecting sleeve. When not under external force, the bow head naturally opens into a trumpet shape, the bow head is caught in the backstop groove of the push block, and the bow tail hooks the rising electrode piece, while locking the push block and the electric plate piece into a safe state; when the plug enters, it squeezes the bow body, the two bow-shaped buckles stand upright in parallel, and the electrode piece and the push block are both unlocked and move downward into the working state.

7. The intelligent safety socket according to claim 1, wherein the push block, the limit pin, the return spring 1, the positioning pin, the electrode piece, the return spring 2, the bow-shaped buckle, the connecting sleeve, the conductive anvil, the wire, the elastic rubber pad, the box body, and the self-locking spring hook are combined into a socket module, and corresponding socket modules are formed according to different plug shapes, sizes, and the number of terminals.

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