CN100463300C - Push type safety power socket - Google Patents

Abstract

A push positioning mechanism is set between a cap for insertion and the driving block, and electrically conducting metal pieces are symmetrically on the driving block. When plug directly inserts into the cap for insertion and is pushed down, the push positioning mechanism fixes the driving block in a compacting position to let the electrically conducting metal piece connected to two posts in the base, and to let the plug power on. When the socket is not inserted by plug, the exposed metal in the plug jack is not powered to avoid un-safety. A sideslip block having a guiding slope can locks in the plug through relative motion between sideslip block and driving block when the driving block is in compacting position.

Description

Push type safety power socket

technical field

The invention relates to a power connection device, in particular to a push-type safety power socket.

technical background

Most of the traditional power sockets adopt a simple plug-in structure. Even when there is no plug inserted, the conductive connector will be charged and cause safety hazards to users; When the plug is bumped or driven, the plug will be separated from the insertion position, resulting in poor contact or disconnection, resulting in power failure of the electrical equipment, causing unnecessary trouble and loss; it is more dangerous and easy for the situation where the plug is loose and the power is not cut off. cause electric shock hazard. However, some existing rotary power sockets can achieve the purpose of locking the plug for safe use of electricity after the plug is inserted and rotated by pressing the plug through the locking member; The angle is relatively large, and when it is applied to the plug-in strip, the plugs of the inserted electrical appliances will affect each other.

Contents of the invention

The present invention overcomes the above disadvantages and provides a push-type safety power socket with simple structure and high safety.

The technical solution adopted by the present invention to solve the technical problem is: a push-type safety power socket, including a fixedly connected base and an upper cover, a plug-in cap is embedded in the center of the upper cover, and the plug-in cap is set There are at least two sockets; a transmission block is arranged between the base and the upper cover, and two symmetrical guide posts are arranged on the transmission block; a sliding tooth is arranged between the plug cap and the transmission block Shaped positioning mechanism; two conductive metal sheets are symmetrically arranged on the transmission block, and are in contact with the two wiring terminals in the base when in the pressed position; a side slider is also arranged between the base and the upper cover In between, the side slider is provided with a guide hole that matches the guide column on the transmission block, a guide slope is provided on one end surface of the side slider, and a guide slope is provided on the inner wall of the corresponding base or upper cover. Slopes with the same slope as the guide slopes, or guide slopes are provided on both side end surfaces of the side slider, and slopes with the same slopes as the guide slopes are respectively provided on the inner walls of the corresponding base and upper cover.

At least one socket on the plug-in cap may be provided with a pressure-stop key, the root of the pressure-stop key is fixed to the edge of the socket, the end is in contact with the fixing bracket of the upper cover, and the root is connected to the end. The side protrusions between them protrude into the sockets where they are located.

A reaction force spring is arranged between the transmission block and the side slide block.

A return spring can also be arranged between the transmission block and the base.

On the side slider, an extruded metal sheet may be provided at a position corresponding to the conductive metal sheet of the transmission block.

The plug cap can be provided with three jacks, wherein the bottom end of the ground wire jack is circular, and the top end is rectangular, and the live wire jack and the neutral wire jack are symmetrical with respect to the center line of the ground wire jack; The live line jack and the neutral line jack are respectively formed by overlapping a pair of long rectangular holes arranged parallel to the center line and a pair of long rectangular holes arranged in a V shape, and a pair of long rectangular holes arranged parallel to the center line The distance between the holes is adapted to the spacing of the two-phase plugs, and the angle and distance of the pair of long rectangular holes arranged in a V shape are adapted to the angle and distance of the three-phase plugs.

Compared with the prior art, the present invention has the beneficial effects that: a pressing positioning mechanism is provided between the plug cap and the transmission block, and conductive metal sheets are symmetrically arranged on the transmission block, when the plug is directly inserted Insert the plug cap and press it downwards, the transmission block will be positioned at the pressing position by the pressing and positioning mechanism, so that the conductive metal sheet will be in contact with the two terminals in the base, and the plug will be connected to the power supply . In the non-use state where the socket is not plugged in, the bare metal in the socket is not charged, which avoids unnecessary safety hazards. At the same time, the side slider with a guide slope, when the transmission block is in the pressed position, squeezes and locks the plug through the movement of the side slider and the transmission block; prevents the plug from being loosened from the socket during use, The safety and stability of the use process are guaranteed. In addition, through the anti-pressure key provided in the jack on the plug cap, it is prevented that when the plug is not inserted, the plug cap is pressed due to misoperation, causing the exposed metal sheet in the jack to be charged, thereby further improving the safety of the power socket sex. The invention has simple structure, mature technology and easy processing and production.

Description of drawings

Fig. 1 is a structural representation of the present invention

Figure 2 is an exploded view of the internal structure of the present invention

Fig. 3 is the structural representation of plug cap in the present invention

Fig. 4 is the structural representation of side slider in the present invention

Detailed ways

The present invention mainly includes: an insertion cap 3 , an upper cover 1 , a base 2 , a transmission block 4 and a side sliding block 5 . The upper cover 1 is fixedly connected with the base 2, and a plug cap 3 for inserting a power plug is embedded in the center of the upper cover 1 to form a complete housing; the transmission block 4 and the side slider 5 are set in the above housing.

The plug cap 3 is provided with three jacks, which are respectively a ground wire jack 3-1, a fire wire jack 3-2, and a neutral wire jack 3-3; wherein the bottom end of the ground wire jack 3-1 is It is circular and has a rectangular top. The live wire jack 3-2 and the neutral wire jack 3-3 have the same shape and are symmetrical with respect to the center line of the ground wire jack 3-1. The live line jack 3-2 and the neutral line jack 3-3 are respectively formed by overlapping a pair of long rectangular holes arranged parallel to the center line and a pair of long rectangular holes arranged in a V shape; and the center The distance between a pair of long rectangular holes arranged in parallel is adapted to the spacing of two-phase plugs, and the angle and distance of the pair of long rectangular holes arranged in a V shape are adapted to the angle and distance of three-phase plugs. The jack structure can be adapted to three different power supply plugs, including national standard two-phase flat plugs, three-phase flat plugs and American three-phase plugs, which makes the application of the present invention more extensive.

The center of the upper cover 1 is a hollow cylinder 6 with guide grooves on the inner wall, and the hollow cylinder 6 and the frame of the upper cover 1 are supported and fixed by a fixing bracket 7 . Each of the live wire jack 3-2 and the neutral wire jack 3-3 on the plug cap 3 is provided with a pressure-stopping key, respectively the pressure-stopping keys 8-2 and 8-3; The root is fixed to the edge of the jack where it is located. In the state where no plug is inserted, the end of the pressure-stop key is connected to the fixed bracket 7 of the upper cover 1, and the side convex surfaces between the root and the end are respectively probed. into their respective jacks. When no plug is inserted, the end of the pressure-stop key is pressed against the fixed bracket, so that the entire plug cap 3 cannot be pressed down, thereby preventing the socket from being damaged due to external force or unintentional pressing when no plug is inserted. The plug cap 3 described above causes the exposed metal in the jack to be charged, causing unnecessary danger; when a plug is inserted into the live wire jack 3-2 and the neutral wire jack 3-3 at the same time, squeeze the pressure-stopping key 8-2 and 8-3, the ends of the two pressure-stop keys are moved sideways, and the fixing bracket 7 is no longer pressed, so that the plug cap 3 can move downward with the pressing of the plug.

The transmission block 4 is provided with two symmetrical guide posts 9 and a spring bracket 10 arranged between the two guide posts; The conductive metal sheet 11 extends downwards and corresponds to the connection terminal 12 in the base 2 . The side slide block 5 is provided with a guide hole 13 matched with the guide column 9, and a spring retainer 14 arranged between the two guide holes 13; between the guide hole 13 and the spring retainer 14 Each is provided with an extruded metal sheet 15 . The guide column 9 is inserted into the guide hole 13 , and a compression spring 16 is embedded between the spring bracket 10 and the spring catch 14 . Two sets of slopes 17, 18 are arranged symmetrically on both ends of the side slider 5, and slopes 19 with the same slope are also arranged on the inner wall of the corresponding base 2, and on the inner wall of the corresponding upper cover 1 are also arranged There are slopes with the same slope (not marked in the figure). Through the cooperation between the transmission block 4 and the side slider 5, when the transmission block 4 is pressed down and moves downward, since the guide post 9 is sleeved in the guide hole 13, the transmission block 4 and The position of the side slider 5 in the horizontal direction is consistent, that is, the guide column 9 of the transmission block 4 drives the side slider 5 to move downward through the guide hole 13, and at the same time, the side slider 5 also moves along the base 2 and the slopes 18, 19 on the inner wall of the upper cover 1 slide towards the direction close to the transmission block 4, causing the distance between the side slider 5 and the transmission block 4 to become smaller and smaller, and more importantly, to make the transmission block The distance between the conductive metal sheet 11 of 4 and the extruded metal sheet 15 of the side slider 5 is getting smaller and smaller, and the inserted electrical plug is clamped between the conductive metal sheet 11 and the extruded metal sheet 15 between. Due to the consideration of insulation performance, plasticity, weight and processing cost, the side slider 5 is usually made of plastic, resin and other materials, which not only have elasticity, but also are easy to wear; Extruding the metal sheet 15 is not only wear-resistant, but also increases and reduces the elastic deformation caused by clamping the plug, thereby improving the clamping force. The conductive metal sheet 11, in addition to realizing the same function of extruding the metal sheet, also contacts the conductive terminal 12 in the base 2 when the transmission block 4 moves downward, so that the electrical plug is connected to the power supply. The ground wire jack 3-1 on the plug cap 3 directly corresponds to the ground wire terminal 24 in the base 2, after the plug with the ground wire is plugged into the plug cap 3, It is directly connected to the ground terminal 24.

A return spring 20 is also arranged between the transmission block 4 and the base 2 .

A press positioning mechanism is provided between the transmission block 4 and the plug cap 3, and the press positioning mechanism includes a hollow cylinder 6 with a guide platform on the inner wall of the upper cover 1, two toothed The guide blocks 21, 22 and a spring 23 of the shape convex rib form the same sliding tooth-shaped positioning mechanism as in the existing automatic retractable ballpoint pen, and the specific structural forms are not repeated here.

During use, first insert the plug into the socket cap 3 and press it downwards, and at the same time push the transmission block 4 to move downwards; when pressed in place, the sliding tooth mechanism is positioned in the compressed state, In this state, the plug is in contact with the conductive metal sheet 11 on the transmission block 4, and at the same time the extension of the conductive metal sheet 11 is in contact with the terminal 12 in the base 2 and conducts, so that the inserted The plug is connected to the power supply; at the same time, the side slider 5 squeezes the plug between the conductive metal sheet 11 and the extruded metal sheet 15 to prevent the plug from getting loose from the jack and to lock the plug. When the plug-in cap 3 is pressed again, the locking effect on the transmission block 4 is released by the sliding tooth-shaped positioning mechanism, and the side slider 5 is separated from the transmission block 4 under the reaction force of the spring 20, and the clamping action on the transmission block 4 is released. At the same time, under the action of the return spring, the transmission block 4 is reset upwards, and the extension end of the conductive metal sheet is disconnected from the terminal in the base 2, and the plug can be easily removed from the socket at the same time. Pull out the plug cap 3 above. At this time, the conductive metal sheet 11 in the jack is not charged, ensuring the safety of the socket in the non-use state; at the same time, the pressure-stopping key is pressed again on the fixed bracket of the upper cover 1 to prevent pressing during misoperation. Described plug cap 3 and cause danger, make whole socket return to original state.

The push-type safety power socket provided by the present invention has been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be appropriate changes in the specific implementation and application scope. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (6)

1. A push-type safety power socket, comprising a fixedly connected base and an upper cover, characterized in that: a plug-in cap is embedded in the center of the upper cover, and at least two sockets are arranged on the plug-in cap; A transmission block is arranged between the base and the upper cover, and two symmetrical guide columns are arranged on the transmission block; a sliding tooth positioning mechanism is arranged between the plug cap and the transmission block; the transmission There are two conductive metal sheets symmetrically arranged on the block, which are in contact with the two terminals in the base when in the pressed position; a side slider is also arranged between the base and the upper cover, and the side slider A guide hole matching the guide column on the transmission block is provided on the top, a guide slope is provided on one end surface of the side slider, and the inner wall of the corresponding base or upper cover is provided with the same slope as the guide slope. Alternatively, guide slopes are respectively provided on both side end surfaces of the side slider, and slopes with the same slope as the guide slopes are respectively provided on the inner walls of the corresponding base and the upper cover. 2. The push-type safety power socket according to claim 1, characterized in that: at least one socket on the plug cap is provided with a pressure-stop key, and the root of the pressure-stop key is fixed to the edge of the socket. , the end is in contact with the fixing bracket of the upper cover, and the side convex surface between the root and the end protrudes into the socket where it is located. 3. The push-type safety power socket according to claim 1 or 2, characterized in that: a counter force spring is arranged between the transmission block and the side sliding block. 4. The push-type safety power socket according to claim 1 or 2, characterized in that: a return spring is arranged between the transmission block and the base. 5. The push-type safety power socket according to claim 1 or 2, characterized in that: on the side sliding block, a pressing metal sheet is arranged at a position corresponding to the conductive metal sheet of the transmission block. 6. The push-type safety power socket according to claim 1 or 2, characterized in that: the plug cap is provided with three jacks, wherein the bottom end of the ground wire jack is round, the top end is rectangular, and the fire wire The jack and the neutral jack are symmetrical with respect to the center line of the ground jack, and the live line jack and the neutral jack are respectively composed of a pair of long rectangular holes arranged parallel to the center line and a pair of V-shaped arranged holes. The long rectangular holes are overlapped; the distance between a pair of long rectangular holes arranged parallel to the center line is adapted to the spacing of the two-phase plugs, and the angle and distance of the pair of long rectangular holes arranged in a V shape are the same as The angle and distance of the three-phase plug are suitable.

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