TW202017260A - Plug structure for preventing wire from breaking due to pulling having a spring capable of being stretched and extended to buffer and absorb the pulling force so as to prevent the electric wire or electrical contacts from being broken - Google Patents

Abstract

The present invention provides a plug structure for preventing wire from breaking due to pulling, which includes a housing, two insertion pieces, two springs, a sliding block and an electric wire. The housing has one end defined therein two slot holes, and the other end defined therein a through hole. Inside the housing, there is a sliding path arranged between the two slot holes and the through hole, and the two insertion pieces are fixed to the two slot holes. The sliding block is arranged in a sliding manner on the sliding path inside the housing, and the sliding block is provided with two conductive pieces. Each of the two springs has one end electrically connected to the insertion piece, and the other end electrically connected to the conductive piece. The electric wire passes through the through hole in a sliding manner, and the electric wire is electrically connected to the two conductive pieces. As a result, when the electric wire is pulled, the spring can be stretched and extended to buffer and absorb the pulling force, thereby preventing the electric wire or electrical contacts from being broken.

Description

Plug structure for preventing pulling and disconnection

The present invention relates to a plug, in particular to a plug structure that prevents pulling and disconnection.

The correct use of electrical appliances is when the plug is to be pulled out of the socket, the plug body should be pulled out by grasping the body of the plug, and the plug cannot be pulled directly by the wire, especially for daily life that often changes positions Electrical appliances and 3C products, such as electric fans, mobile phone charging plugs, notebook computers, electric bicycles... and other products, if users are not used to pulling the plug by hand, it will cause copper wires or welding at the internal connection of the plug If the spot breaks, it may also cause a short circuit or poor contact and cause overheating and fire.

Because bad habits are usually not easy to quit, it is necessary to improve the structure of the plug. When users habitually pull the plug by pulling the wire, the plug can be prevented from being disconnected, short-circuited or poorly contacted.

In order to solve the above problems, one object of the present invention is to provide a plug structure that can prevent the plug from being disconnected, short-circuited, or poorly contacted by pulling the wire.

Another object of the present invention is to provide a plug structure to maintain a good electrical connection to the internal circuit of the plug.

In order to achieve the above object, the plug structure of the present invention for preventing pulling and disconnection includes an outer shell, two inserts, two springs, a slider and a wire in one embodiment. One end of the shell is provided with two slot holes, and the other end is provided with a through hole. A slide path is provided between the two slot holes and the through hole inside the housing, and two inserts are fixed to the two slot holes. The slider is slidably arranged in the slide channel in the casing, and the slider is provided with two conductive sheets. One end of the two springs is electrically connected to the insertion piece, and the other end is electrically connected to the conductive piece. The wire slides through the through hole, and the wire is electrically connected to the two conductive sheets. In this way, when the wire is pulled, the spring can be stretched and extended to buffer and absorb the pulling force, so as to prevent the wire or the electrical contact from being broken.

In some embodiments of the present invention, the insert is provided with a connecting end, and the spring is welded to the connecting end, so that the internal circuit of the plug maintains a good electrical connection.

In some embodiments of the present invention, the insert piece is provided with a connecting end, the connecting end is provided with a hole, and the spring is hooked on the hole of the connecting end, thereby making the assembly more convenient.

In some embodiments of the present invention, a blocking post is provided in the housing, and the blocking post can block the slider to maintain the elastic tension of the spring, thereby allowing the plug and the spring to have a good electrical connection.

In some embodiments of the present invention, the conductive sheet is provided with a screw hole, and the wire is fixed to the screw hole with a screw.

In some embodiments of the present invention, the spring is a tension spring, and the tension spring can absorb the force of pulling the wire.

The embodiments are only used to illustrate the possible implementation forms of the present invention, but they are not intended to limit the scope of the present invention. In order to make the purpose, features and advantages of the present invention obvious, the following will give a detailed description of the preferred embodiments of the present invention and the accompanying drawings.

1 to 4 at the same time, FIG. 1 shows an exploded perspective view of the plug structure of the present invention at a first angle, FIG. 2 shows an exploded perspective view of the plug structure of the present invention at another angle, FIG. 3 shows the present FIG. 4 shows a combined side view of the plug structure for preventing pull disconnection according to the invention. FIG. 4 shows a cross-sectional view taken along the line AA of FIG. In a preferred embodiment, the plug structure of the present invention for preventing wire breakage includes a housing 10, two inserts 20, a slider 40, two springs 30, and a wire 50. One end of the casing 10 is provided with two slot holes 11 and the other end is provided with a through hole 12. A slide path 13 is provided inside the casing 10 between the two slot holes 11 and the through hole 12. The two inserts 20 are fixed to the two slots 11. The slider 40 is disposed in the casing 10 and can slide on the slide path 13. The slider 40 is provided with two conductive sheets 41. One end of the two springs 30 is electrically connected to the insertion piece 20, and the other end is electrically connected to the conductive piece 41. The electric wire 50 can slide through the through hole 12, and the electric wire 50 is electrically connected to the two conductive sheets 41. The other end of the electric wire 50 is connected to an electric appliance. When the electric wire 50 is pulled, the spring 30 can be stretched and extended to cushion the pulling force and prevent the electrical contact from being pulled and broken.

The casing 10 may be composed of two half shells as shown in the figure, or may be manufactured as a whole by injection molding. The insert 20 is a metal conductive sheet of a general plug, which can be inserted into a socket to conduct power. The insert 20 is fixed to the two slots 11 and is immovable. The fixing method may be that a blocking block is fixed inside the housing 10 so that it will not move. Alternatively, the slot 20 of the casing 10 is fixed by the glue or high frequency welding to make the insert 20 immovable. In the embodiment of the present invention, there are two inserts 20, but the number and position of the inserts 20 can be changed according to the specifications of different countries or regions, and the change of the number and position of the inserts 20 should be regarded as easy, etc. Effective replacement.

The slideway 13 is preferably formed by forming the slideway 13 with the space between the walls in the housing 10, and the width of the slider 40 is close to the slideway 13, so that the slider 40 can be smoothly installed in the slideway 13 The sliding direction is the same as the axial direction of the wire 50. When the wire 50 is pulled, the slider 40 can be pulled to move in the slide rail 13.

The material of the slider 40 is an insulator, and it is preferably provided with two conductive sheets 41. The conductive sheet 41 may be an iron sheet or a copper sheet. One end of the two springs 30 is electrically connected to the two inserts 20, and the other end is electrically connected to the conductive sheet 41, the wire 50 is slidably passed through the through hole 12, and the metal wire in the wire 50 is electrically connected to the two conductive sheets 41. In this way, the metal wire in the electric wire 50 is electrically connected to the conductive sheet 41, the spring 30 and the insert sheet 20 in this order.

Wherein, the conductive sheet 41 can further be provided with screw holes (not marked), and the electric wire 50 can be fixed to the screw holes with screws 42, thereby making the assembly more convenient.

Wherein, the insert 20 may be a flat metal piece directly welded to the spring 30 to form an electrical conduction. The spring 30 is a tension spring. More preferably, a connecting end 21 may be provided as shown in the figure. The spring 30 may be welded to The connecting end 21 enables the two to maintain a good electrical connection. The connecting end may also be provided with a hole (not shown), so that the spring 30 can be made into a hook shape and can be hooked into the hole of the connecting end 21, which makes the assembly more convenient. If the spring 30 is connected to the hole of the connecting end 21 in the form of a hook, a blocking post 14 may be provided in the housing 10, and the blocking post 14 may block the slider 40 so that the spring 30 is slightly pulled apart to maintain elastic tension, To avoid poor contact caused by the looseness of the spring 30, the plug 20 and the spring 30 have a good electrical connection.

Referring to FIG. 5, FIG. 5 shows a schematic diagram of the plug structure of the original plug-proof plug structure inserted in the socket. When the plug of the author's anti-pull disconnection is inserted into the socket 60, the power is connected to the wire 50 through the plug 20, the spring 30, and the conductive piece 41, and the power can be smoothly supplied to the electrical appliance.

Referring to FIG. 6, FIG. 6 shows a schematic diagram of the plug structure of the author's anti-pull disconnection pull wire pull plug. When the user pulls the wire 50 to pull the plug out of the socket 60, the plug stays in its original position when the wire 50 is pulled because of the frictional force of the insert 20 inserted into the socket 60, and the wire 50 passes through the The hole 12 is slightly pulled out of the housing 10, and the wire 50 drives the slider 40 and the conductive piece 41 to move the spring 30. In this way, the pulling force at the moment when the wire 50 is pulled is cushioned because the spring 30 is stretched and extended. A part of the pulling force is absorbed by the deformation of the spring 30, which can reduce the pulling force on the internal wire of the electric wire 50, and can also reduce the pulling force of the contact of the electric wire 50 and the conductive piece 41, so that the metal wire of the electric wire 50 and each electrical contact in the plug can be Avoid being pulled and disconnected.

Referring to FIG. 7, FIG. 7 shows a schematic diagram of the action of the plug structure of the author's anti-pull broken wire pulling the wire to pull the plug. A part of the initial pulling force of the pulling wire 50 is absorbed by the deformation of the spring 30, and then the deformation restoring force of the spring 30 is transmitted to the insert 20 to overcome the friction between the insert 20 and the socket 60, and the plug is removed from the socket 60.

Referring to FIG. 8, FIG. 8 shows a schematic diagram of the plug structure of the author's anti-pull broken plug structure pulled out of the socket. After the plug is pulled out of the socket 60, the restoring force of the spring 30 restores the elements in the plug structure of the original anti-pulling broken wire to the original position. When the plug is often pulled by pulling the wire 50, the structure of the embodiment of the present invention can buffer the pulling force every time it is pulled, which can effectively prevent the plug from being disconnected, shorted, or poorly contacted due to the pulling of the wire.

The above-mentioned embodiments are only to illustrate the technical ideas and features of the present invention, and its purpose is to enable those who are familiar with this skill to understand the content of the creation and implement it accordingly, but should not limit the patent scope of the present invention. Any changes or modifications made in accordance with the spirit of the present invention and the contents of the description shall be covered by the patent scope of the present invention.

10: Housing 11: Slot hole 12: Through hole 13: Slide 14: Stopper 20: Insert 21: Connection end 30: Spring 40: Slider 41: Conductive sheet 42: Screw 50: Wire 60: Socket

FIG. 1 shows an exploded perspective view of the plug structure of the present invention at a first angle to prevent disconnection. FIG. 2 shows an exploded perspective view of the plug structure of the present invention with a pull-proof wire breakage-proof from another angle. Fig. 3 shows a combined side view of the plug structure of the present invention for preventing pull-off disconnection. FIG. 4 shows a cross-sectional view taken along the line A-A of FIG. 3 of the plug structure of the present invention for preventing pull-off. FIG. 5 shows a schematic diagram of the plug structure of the plug structure with anti-pull disconnection of the present invention inserted into a socket. FIG. 6 shows a schematic diagram of pulling a plug for pulling a wire by the plug structure with anti-pull disconnection according to the present invention. FIG. 7 shows a schematic diagram of the action of the plug structure of the present invention to prevent pulling the broken wire and pulling the wire to pull the plug. FIG. 8 shows a schematic diagram of the plug structure of the plug structure of the present invention withdrawn from pulling out of the socket.

10: Shell

11: Slot

12: through hole

13: Slide

14: Column

20: Insert

21: connector

30: Spring

40: Slider

41: conductive sheet

42: Screw

50: wire

Claims (6)

A plug structure for preventing pulling disconnection includes: a shell with two slots at one end and a through hole at the other end; a slide path is provided between the two slots and the through hole inside the shell; The insert is fixed to the two slots; a slider is slidably disposed on the slide in the housing, the slider is provided with two conductive sheets; two springs, one ends of the two springs are electrically connected to the two The other end of the insert is electrically connected to the two conductive sheets; a wire is slidably passed through the through hole, and the wire is electrically connected to the two conductive sheets. The plug structure as claimed in item 1 of the patent application scope, wherein the plug is provided with a connecting end, and the spring is welded to the connecting end. The plug structure as claimed in item 1 of the patent application scope, wherein the plug is provided with a connecting end, the connecting end is provided with a hole, and the spring is hooked into the hole of the connecting end. As in the plug structure for preventing wire breakage described in Item 3 of the patent application scope, a stopper is provided in the housing, and the stopper can block the slider. According to the plug structure for preventing wire breakage as described in item 1 of the patent application scope, wherein the conductive piece is provided with a screw hole, and the wire is fixed to the screw hole with a screw. The plug structure as described in item 1 of the patent application scope to prevent pulling and breaking the wire, wherein the spring is a tension spring.

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