CN109802255B - European-style plug fixing structure and fixing method thereof - Google Patents

Abstract

The invention relates to a fixing structure of a European-style plug, which comprises a shell, a fixing block and pins, wherein two first jacks are arranged at the bottom of the shell, the pins are inserted into the first jacks, second jacks corresponding to the first jacks are arranged on the fixing block, the second jacks are sleeved on the pins, the lower surface of the fixing block is abutted against the inner surface of the shell, and the pins extend out of the second jacks. The plug is firm in structure, and the connection structure between the plug and the socket is firm.

Description

European-style plug fixing structure and fixing method thereof

Technical Field

The invention relates to the field of plugs, in particular to a fixing structure of a European-style plug.

Background

The plug, also called power cord plug, can be inserted into a socket to connect other circuits. With the development of society and the progress of technology, people are pursuing the simplicity and comfort of life, and various electrical products are produced as required to meet the living requirements of people, and plugs gradually become necessities in our lives. When the plug is used in daily life, the insertion sheet of the plug is easy to loosen after long-term use, and the phenomena of short circuit, plug electric leakage and the like of a circuit in the socket are easy to generate, so that personal electric shock and electric fire accidents are caused, and great hidden dangers are brought to personal and property safety.

Disclosure of Invention

Therefore, it is necessary to provide a fixing structure of an european plug, which includes a housing, a fixing block and pins, wherein two first insertion holes are formed in the bottom of the housing, the pins are inserted into the first insertion holes, second insertion holes are formed in the fixing block corresponding to the first insertion holes, the second insertion holes are sleeved on the pins, the lower surface of the fixing block abuts against the inner surface of the housing, and the pins extend out of the second insertion holes.

The pin is loosely matched with the first jack and is in interference fit with the second jack, so that the purpose of firmly connecting the pin with the fixed block and the shell is achieved, and therefore the pin can connect the fixed block with the shell, and the lower surface of the fixed block is abutted against the inner surface of the shell.

Preferably, the pin comprises a connecting portion, a working portion and a fixed pipe, the connecting portion, the working portion and the fixed pipe are arranged from top to bottom, the first jack comprises a first stepped hole and a second stepped hole, the first stepped hole and the second stepped hole are arranged from top to bottom, the diameter of the first stepped hole is smaller than that of the second stepped hole, the upper portion of the fixed pipe is inserted into the second stepped hole, the upper end of the fixed pipe abuts against the shell, and the lower end of the fixed pipe abuts against the working portion.

The pin is fixedly connected with the fixing tube and the fixing block, the fixing tube inserted into the second stepped hole can limit the swinging of the pin, so that the connection structure of the pin is more stable, meanwhile, the fixing tube is in interference fit with the second stepped hole, the fixing tube and the fixing block are respectively clamped at two sides of the shell, the pin fixedly connected with the fixing tube is firmly fixed on the shell, and the connection structure is more stable; in addition, the fixing tube is made of insulating materials, so that the upper part of the pin which is leaked out of the shell can be prevented from leaking electricity, and safety accidents are caused.

Furthermore, the contact surface of the connecting part and the fixed block is a rough surface.

The upper part and the lower part between the connecting part and the fixed pipe are rough surfaces, so that the friction force is enhanced, and the friction force is not too large, so that the connecting part of the pin is difficult to insert into the fixed pipe.

Preferably, the inner surface of the shell is provided with a protrusion, and the protrusion is located at the middle position of the two first jacks.

Another object is to provide a method for fixing a euro-style plug, which comprises the following steps:

s1, sleeving the pin into the fixed tube, penetrating through the second jack and the first jack until the upper end of the fixed tube on the pin is inserted into the second stepped hole and abuts against the shell;

and S2, pressing down the two ends of the fixing block to make the two ends of the fixing block abut against the inner surface of the shell and make the middle part of the fixing block jacked up by the bulge on the shell, so that the lower ends of the two pins move oppositely, the pins are inclined, and the distance between the lower ends of the two pins is smaller than that between the upper ends of the two pins.

Preferably, the upper end of the pin extends out of the fixing block.

The part of the pin extending out of the fixing block is used for being connected with a power supply.

The principle and effect of the present invention will be further explained by combining the above technical solutions:

the middle part of the fixing block inserted with the pins is pushed upwards, so that the lower ends of the pins move inwards, the two pins are in an inner eight shape, and after the pins are inserted into the socket, because the distance between the lower ends of the pins is smaller than the distance between the upper ends of the pins, the distance between the lower ends of the pins is smaller than the distance between the jacks, the plug can be effectively prevented from falling off from the socket in the using process, and the use safety of the plug is improved; the plug pin is fixed on the shell by using the insulating fixing block and the fixing pipe, so that safety factors such as electric leakage and the like existing in the use of conductive fixing structures such as screws and the like can be avoided.

Drawings

Fig. 1 is a first structural schematic diagram of a fixing structure of a european style plug according to an embodiment of the present invention;

fig. 2 is a second structural schematic view of a fixing structure of the european style plug according to the embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a pin according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a fixing tube according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of the fixing block according to the embodiment of the present invention;

description of reference numerals:

the plug comprises a shell 1, a first jack 11, a first stepped hole 111, a second stepped hole 112, a protrusion 12, a fixing block 2, a second jack 21, a pin 3, a connecting part 31, a working part 32 and a fixing pipe 33.

Detailed Description

For the convenience of understanding of those skilled in the art, the present invention will be described in further detail below with reference to the accompanying drawings and examples:

referring to fig. 1, a fixing structure of a european style plug includes a housing 1, a fixing block 2 and pins 3, two first insertion holes 11 are provided at the bottom of the housing 1, the pins 3 are inserted into the first insertion holes 11, second insertion holes 21 are provided on the fixing block 2 corresponding to the first insertion holes 11, the second insertion holes 21 are sleeved on the pins 3, the lower surface of the fixing block 2 abuts against the inner surface of the housing 1, and the pins 3 extend out of the second insertion holes 21.

In one embodiment, the pin 3 includes a connecting portion 31, a working portion 32 and a fixing tube 33 sleeved on the connecting portion 31, the first insertion hole 11 includes a first stepped hole 111 and a second stepped hole 112, the first stepped hole 111 and the second stepped hole 112 are vertically arranged, the diameter of the first stepped hole 111 is smaller than that of the second stepped hole 112, the upper portion of the fixing tube 33 is inserted into the second stepped hole 112, the upper end of the fixing tube 33 abuts against the housing 1, and the lower end of the fixing tube 33 abuts against the working portion 32.

In one embodiment, the contact surface of the connecting portion 31 with the first insertion hole 11 and the second insertion hole 21 is a rough surface.

In one embodiment, the upper and lower portions of the contact surface of the connection portion 31 with the fixing tube 33 are rough surfaces.

In one embodiment, the inner surface of the housing 1 is provided with a protrusion 12, which is located at the middle position of the two first insertion holes 11.

One embodiment of the invention provides a method for fixing a European-style plug, which is characterized by comprising the following steps:

s1, aligning the second jack 21 on the fixed block 2 with the first jack 11, sleeving the pin 3 into the fixed tube, penetrating through the second jack 21 and the first jack 11 until the upper end of the fixed tube 33 on the pin 3 is inserted into the second stepped hole 112 and abuts against the shell 1;

s2, pressing down the two ends of the fixed block 2 to make the two ends of the fixed block prop against the inner surface of the shell 1 and make the middle part of the fixed block be jacked up by the bulge 12 on the shell 1, so that the lower ends of the two pins 3 move oppositely, the pins 3 are inclined, and the distance between the lower ends of the two pins 3 is less than the distance between the upper ends of the two pins 3;

in one embodiment, the upper end of the pin 3 extends out of the fixing block 2.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (2)

1. The fixing structure of the European-style plug is characterized by comprising a shell, a fixing block and pins, wherein two first jacks are arranged at the bottom of the shell, the pins are inserted into the first jacks, second jacks corresponding to the first jacks are arranged on the fixing block, the second jacks are sleeved on the pins, the lower surface of the fixing block abuts against the inner surface of the shell, and the pins extend out of the second jacks; the plug pins comprise a connecting part, a working part and a fixing pipe, wherein the connecting part, the working part and the fixing pipe are vertically arranged, the fixing pipe is sleeved on the connecting part, the first jack comprises a first stepped hole and a second stepped hole which are vertically arranged, the diameter of the first stepped hole is smaller than that of the second stepped hole, the upper part of the fixing pipe is inserted into the second stepped hole, the upper end of the fixing pipe abuts against the shell, the lower end of the fixing pipe abuts against the working part, and the surface of the connecting part, which is in contact with the fixing block, is a rough surface; the inner surface of the shell is provided with a bulge which is positioned in the middle of the two first jacks;

the fixing method comprises the following steps:

s1, aligning the second jack on the fixing block with the first jack, sleeving the pin into the fixing tube, penetrating through the second jack and the first jack until the upper end of the fixing tube on the pin is inserted into the second stepped hole and abuts against the shell;

and S2, pressing down the two ends of the fixing block to make the two ends of the fixing block abut against the inner surface of the shell and make the middle part of the fixing block jacked up by the bulge on the shell, so that the lower ends of the two pins move oppositely, the pins are inclined, and the distance between the lower ends of the two pins is smaller than that between the upper ends of the two pins.

2. The european plug fixing structure according to claim 1, wherein the upper ends of the pins extend out of the fixing block.

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