CN216450849U

CN216450849U - Electric shock prevention safety plug

Info

Publication number: CN216450849U
Application number: CN202123225607.4U
Authority: CN
Inventors: 高铭泽; 邢健; 高质涵; 付高杰; 董默; 高杨; 刘鹤; 尹燕伟; 李洪义; 于淼
Original assignee: Mudanjiang Medical University
Current assignee: Mudanjiang Medical University
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-05-06
Anticipated expiration: 2031-12-21

Abstract

An electric shock prevention safety plug relates to a safety plug. In order to solve the current poor problem of power plug security. The anti-electric shock safety plug consists of a plug shell and a front cover, wherein the side wall of the front cover is arranged in a gap between the side wall and the outer wall of the shell; a first spring is arranged between the front cover and the front surface of the plug shell, a pin inserting hole is formed in the outer surface of the front cover, a convex block is arranged on the outer surface of the pin inserting hole, a central hole communicated with the pin inserting hole is formed in the center of the convex block, and a sealing strip is arranged on the edge of the outer surface of the front cover. The anti-electric shock safety plug has the advantages that the contact pin is not exposed all the time before the contact is communicated in the process of inserting the anti-electric shock safety plug, the electric shock is avoided, the safety is high, and the use is convenient.

Description

Electric shock prevention safety plug

Technical Field

The utility model relates to a safety plug.

Background

A general electric appliance is connected with a power supply through a plug. The plug of household power plug and low power electric appliance in production is mostly provided with a bar-shaped or plate-shaped contact pin, and the contact pin in the power plug is inserted into the socket to realize the communication of power supply.

The contact pins on the existing power plug are arranged on the body of the power plug in a protruding mode, and if the contact pins are communicated with contacts in the socket in the inserting process, the contact pins are exposed and electrified, so that certain potential safety hazards exist. Meanwhile, the exposed contact pin is easy to contact with water to cause electric leakage. Therefore, the safety of the existing plug-in power plug is poor.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electric shock prevention safety plug, aiming at solving the problem of poor safety of the existing power plug.

The utility model relates to an electric shock prevention safety plug which comprises a plug shell and a front cover, wherein the periphery of the side wall of the plug shell is provided with an outer wall, the front surface of the plug shell is provided with a contact pin, and the side wall of the front cover is arranged in a gap between the side wall of the shell and the outer wall; a first spring is arranged between the front cover and the front surface of the plug shell, a bulge is arranged on the outer surface of the open end of the side wall of the front cover, a groove matched with the bulge is arranged on the inner surface of the outer wall, a round rod penetrating through the outer wall is arranged at the groove of the outer wall, a button is fixedly connected to the outer end part of the round rod, and a second spring is arranged on the round rod between the button and the outer surface of the outer wall; the inner surface of the open end of the outer wall of the plug shell is provided with a limiting block, the outer surface of the front cover is provided with a pin inserting hole, the outer surface of the pin inserting hole is provided with a convex block, the center of the convex block is provided with a central hole communicated with the pin inserting hole, the root of the convex block is provided with an annular groove, and the edge of the outer surface of the front cover is provided with a sealing strip.

The principle and the beneficial effects of the utility model are as follows:

the front cover in the anti-electric shock safety plug is used for protecting a protective plug shell and an internal contact pin, when a power supply is connected, a lug on the surface of the front cover can be inserted into a jack on a socket to realize positioning, then the front cover is continuously inserted into the socket to be tightly contacted with the surface of the socket, the contact pin is continuously inserted into a contact in the socket to be communicated, meanwhile, a bulge on the front cover is clamped into a groove on the inner surface of the outer wall to realize positioning, the contact pin is not exposed all the time during the insertion action and the contact communication due to the action of the first spring, the electric shock is avoided, and the front cover is separated from the plug shell only by pressing a button when the power supply is required to be cut off. The anti-electric shock safety plug has higher safety and convenient use.

Drawings

Fig. 1 is a schematic structural view of an electric shock protection safety plug in embodiment 1;

fig. 2 is a schematic view of the internal structure of the anti-electric shock safety plug in embodiment 1;

fig. 3 is a schematic front surface view of the front cover 2;

FIG. 4 is an enlarged view of the annular groove 12;

fig. 5 is an enlarged view of the round bar 11.

Detailed Description

The technical scheme of the utility model is not limited to the specific embodiments listed below, and any reasonable combination of the specific embodiments is included.

The first embodiment is as follows: the anti-electric shock safety plug of the embodiment is composed of a plug shell 1 and a front cover 2, wherein an outer wall 14 is arranged around the side wall of the plug shell 1, a contact pin 13 is arranged on the front surface of the plug shell 1, and a front cover side wall 7 of the front cover 2 is arranged in a gap between the side wall of the shell 1 and the outer wall 14; a first spring 6 is arranged between the front cover 2 and the front surface of the plug shell 1, a bulge 8 is arranged on the outer surface of the open end of the side wall 7 of the front cover, a groove matched with the bulge 8 is arranged on the inner surface of the outer wall 14, a round rod 11 penetrating through the outer wall 14 is arranged at the groove of the outer wall 14, a button 5 is fixedly connected to the outer end of the round rod 11, and a second spring 10 is arranged on the round rod 11 between the button 5 and the outer surface of the outer wall 14; the inner surface of the open end of the outer wall 14 of the plug shell 1 is provided with a limiting block 9, the outer surface of the front cover 2 is provided with a pin hole, the outer surface of the pin hole is provided with a convex block 3, the center of the convex block 3 is provided with a central hole communicated with the pin hole, the root of the convex block 3 is provided with an annular groove 12, and the edge of the outer surface of the front cover 2 is provided with a sealing strip 4.

The anti-electric shock safety plug has higher safety and convenient use.

The second embodiment is as follows: the first difference between the present embodiment and the specific embodiment is: the pins 13 are plate-shaped or rod-shaped.

The third concrete implementation mode: the present embodiment differs from the first or second embodiment in that: the first spring 6 is a plastic spring.

The fourth concrete implementation mode: the difference between this embodiment mode and one of the first to third embodiment modes is: the second spring 10 and the first spring 6 are compression springs.

The fifth concrete implementation mode: the difference between this embodiment and one of the first to fourth embodiments is: one end of the second spring 10 is fixedly connected with the lower surface of the button 5, and the other end is fixedly connected with the outer surface of the outer wall 14.

Example 1:

as described with reference to fig. 1 to 5, the electric shock protection safety plug of the present embodiment is composed of a plug housing 1 and a front cover 2, wherein an outer wall 14 is disposed around a side wall of the plug housing 1, a plate-shaped contact pin 13 is disposed on a front surface of the plug housing 1, and a front cover side wall 7 of the front cover 2 is disposed in a gap between the side wall of the housing 1 and the outer wall 14; a first spring 6 is arranged between the front cover 2 and the front surface of the plug shell 1, the first spring 6 is a plastic spring, and the first spring 6 is used for enabling the front cover 2 to be compressed between the plug shell 1 and a socket all the time when the front cover 2 is used, so that the front cover 2 is ensured to be in close contact with the socket; the outer surface of the open end of the front cover side wall 7 is provided with a bulge 8, the inner surface of the outer wall 14 is provided with a groove matched with the bulge 8, and the bulge 8 enters the groove on the inner surface of the outer wall 14 to position the front cover side wall 7; a round rod 11 penetrating through the outer wall 14 is arranged at the groove of the outer wall 14, a button 5 is fixedly connected to the outer end part of the round rod 11, a second spring 10 is arranged on the round rod 11 between the button 5 and the outer surface of the outer wall 14, one end of the second spring 10 is fixedly connected with the lower surface of the button 5, and the other end of the second spring is fixedly connected with the outer surface of the outer wall 14; the button 5 and the round rod 11 can be synchronously pressed to realize that the bulge 8 is separated from the inner surface groove of the outer wall 14; the inner surface of the open end of the outer wall 14 in the plug shell 1 is provided with a limiting block 9, and the limiting block 9 is used for preventing the front cover 2 from falling off; the outer surface of the front cover 2 is provided with a pin hole, the outer surface of the pin hole is provided with a convex block 3, the center of the convex block 3 is provided with a central hole communicated with the pin hole, and the pin hole and the central hole are used for a pin 13 in the front cover 2 to penetrate through the front cover 2 and to be communicated with a contact in the socket; the root of the bump 3 is provided with an annular groove 12, and the annular groove 12 is used for stopping water flow when meeting water so as to avoid the water from contacting the contact pin 13; the edge of the outer surface of the front cover 2 is provided with a sealing strip 4, and the sealing strip 4 is used for sealing after the front cover 2 is contacted with a socket, so that the safety is further ensured; the second spring 10 and the first spring 6 are compression springs.

Front shroud 2 is arranged in protecting plug casing 1 and inside contact pin 13 to protect in this embodiment safety plug of electrocution, lug 3 on front shroud 2 surface can insert the jack on the socket earlier when connecting power realizes the location, then continue to insert action front shroud 2 and socket surface in close contact with this moment, continue to insert the contact intercommunication in contact pin and the socket, protruding 8 card on the front shroud 2 is gone into and is realized the location in the internal surface recess of outer wall 14 simultaneously, because the effect of first spring 6 makes the action of inserting carry out in-process and contact intercommunication front contact pin 13 not exposed all the time, the emergence of electrocuteeing has been avoided, only need press button 5 to make front shroud 2 break away from with plug casing 1 when needing the outage. The electric shock prevention safety plug has high safety and is convenient to use.

Claims

1. An electric shock prevention safety plug is characterized in that: the anti-electric shock safety plug is composed of a plug shell (1) and a front cover (2), wherein an outer wall (14) is arranged on the periphery of the side wall of the plug shell (1), a contact pin (13) is arranged on the front surface of the plug shell (1), and a front cover side wall (7) of the front cover (2) is arranged in a gap between the side wall of the shell (1) and the outer wall (14); a first spring (6) is arranged between the front cover (2) and the front surface of the plug shell (1), a bulge (8) is arranged on the outer surface of the open end of the side wall (7) of the front cover, a groove matched with the bulge (8) is arranged on the inner surface of the outer wall (14), a round rod (11) penetrating through the outer wall (14) is arranged at the groove of the outer wall (14), a button (5) is fixedly connected to the outer end part of the round rod (11), and a second spring (10) is arranged on the round rod (11) between the button (5) and the outer surface of the outer wall (14); a limiting block (9) is arranged on the inner surface of an open end of an outer wall (14) in a plug shell (1), a pin hole is formed in the outer surface of a front cover (2), a convex block (3) is arranged on the outer surface of the pin hole, a center hole communicated with the pin hole is formed in the center of the convex block (3), an annular groove (12) is formed in the root of the convex block (3), and a sealing strip (4) is arranged on the edge of the outer surface of the front cover (2).

2. The anti-shock safety plug of claim 1, wherein: the pins (13) are plate-shaped or rod-shaped.

3. The anti-shock safety plug of claim 1, wherein: the first spring (6) is a plastic spring.

4. The anti-shock safety plug of claim 1, wherein: the second spring (10) and the first spring (6) are compression springs.

5. The anti-shock safety plug of claim 1, wherein: one end of the second spring (10) is fixedly connected with the lower surface of the button (5), and the other end is fixedly connected with the outer surface of the outer wall (14).