Plug

Abstract

The utility model relates to a plug, which comprises a shell and a pin assembly, the shell comprises a base and a shell, an accommodating cavity used for accommodating the pin assembly is formed between the base and the shell, a wire placing groove is arranged at a wire inlet hole of the shell, a gland covering the wire placing groove is arranged on the shell, a fastener is connected between the gland and the shell, and the pin assembly is arranged in the accommodating cavity. A clamping cavity used for pressing a wire is formed between the gland and the wire containing groove, the pin assembly comprises three pins arranged on the base and three wiring terminals arranged on the base and connected with the three pins, and three clamping blocks are arranged at the joints of the three pins and the three wiring terminals respectively. The base is provided with three clamping grooves matched with the three clamping blocks respectively, the three clamping blocks are clamped in the three clamping grooves respectively, and clamping matching of the three clamping blocks and the base is formed. The utility model has the advantages of simple structure, stable and reliable performance, convenient assembly and reliable connection.

Description

TECHNICAL FIELD

[0001] The utility model relates to a plug. BACKGROUND

[0002] The plug is also called a power plug, which is a device for connecting devices such as electrical appliances to a power source. The power plug has a wide range of applications and is needed in various industries, big or small. It is everywhere in our lives. The structure of the existing plug is not reasonable, the internal structure cannot be integrated and modularized, modularized assembly cannot be achieved, the assembly efficiency is low, the connection between the wire and the pin is not firm, the pin and the wire are prone to loosening, the connection is unreliable, and the connection between the pin and the shell is not compact, which causes the pin to loosen or even fall off. SUMMARY

[0003] The utility model aims at overcoming the defects of the prior art and providing a plug with simple structure, stable and reliable performance, convenient assembly, and reliable connection.

[0004] To achieve the above-mentioned purpose, the utility model adopts a plug, which comprises a shell, a pin assembly, the shell comprises a base and a shell arranged on the base, a containing cavity for placing the pin assembly is formed between the base and the shell, a wire slot is arranged at the wire inlet hole of the shell, a gland is arranged on the shell and covers the wire slot, a fastener is connected between the gland and the shell, a clamping cavity for compressing the wire is formed between the gland and the wire slot, the pin assembly comprises three pins arranged on the base and three wire terminals arranged on the base and connected with the three pins, three clamping blocks are arranged at the connection parts of the three pins and the three wire terminals respectively, three clamping grooves matched with the three clamping blocks are arranged on the base respectively, the three clamping blocks are clamped in the three clamping grooves respectively, and the clamping cooperation between the three clamping blocks and the base is formed.

[0005] The beneficial effects of the above structure are that the gland for compressing the wire is arranged on the shell, which can ensure that the connection between the wire and the shell is more firm and the connection reliability is higher, and the pin assembly adopts a modular structure design, which is conducive to realizing the modular assembly of the pin assembly, the base and the shell, and the assembly efficiency is higher. Therefore, the plug has the advantages of simple structure, stable and reliable performance, convenient assembly and reliable connection.

[0006] In particular, the base is provided with a partition plate partitioned between the three wire terminals. The partition plate can increase the creepage distance between the three wire terminals, which is conducive to improving the insulation performance of the plug and improving the safety performance of the plug.

[0007] Particularly, the grommet is provided with a wire pressing protrusion on the side facing the wire slot, which is used to press the wire.

[0008] Particularly, the terminal includes a terminal plate, a terminal screw arranged on one end of the terminal plate, and a bent riveting part arranged on the other end of the terminal plate and matched with the plug pin, wherein the bent riveting part is provided with a riveting hole matched with the plug pin.

[0009] Particularly, two screws are symmetrically arranged on the base, and the shell is provided with two fixing columns connected with the two screws.

[0010] Particularly, the peripheral wall of the shell is provided with a plurality of anti-skid grooves. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is a perspective view of the embodiment of the utility model.

[0012] Fig. 2 It is an exploded view of the embodiment of the utility model.

[0013] Fig. 3 It is a sectional view of the embodiment of the utility model. DETAILED DESCRIPTION

[0014] As Figs. 1-3As shown, the utility model embodiment is a kind of plug, including shell 10, pin assembly 20, the shell 10 including base 11, shell 12 being arranged on base 11, the base 11 and shell 12 between form the accommodation cavity 100 for placing pin assembly 20, the shell 12 at the wire inlet hole 121 of 122 is provided with the wire slot 122, the shell 12 on be provided with the gland 13 that covers on wire slot 122, gland 13 is connected with fastener 14 between shell 12, the gland 13 and wire slot 122 between form the clamping cavity 100 for pressing wire, the pin assembly 20 including three pins 21 being arranged on base 11, three terminal blocks 22 being arranged on base 11 and being connected with three pins 21, the connection of three pins 21 and three terminal blocks 22 is respectively provided with three clamping blocks 23, the base 11 is respectively provided with three clamping grooves 111 matched with three clamping blocks 23, three clamping blocks 23 are respectively clamped in three clamping grooves 111, and constitute the clamping cooperation of three clamping blocks 23 and base 11.The base 11 is provided with the partition plate 112 that is separated between three terminal blocks 22.The partition plate can increase the creepage distance between three terminal blocks, is favorable to improve the insulation performance of the plug, is favorable to improve the safety performance of the plug.The wire pressing convex strip 131 for pressing wire is provided on the side of the gland 13 towards wire slot 122.Gland is pressed in wire slot by wire pressing convex strip, so that the connection of wire and plug can be more compact, so as to be favorable to improve the connection reliability of the plug.The terminal block 22 includes terminal plate 221, terminal screw 222 being arranged on terminal plate 221 one end, the other end of terminal plate 221 has the bending riveting portion 2211 matched with pin 21, the bending riveting portion 2211 is provided with riveting hole 223 riveted with pin 21.The terminal block and pin integrated modular structure design, so that the modular assembly of the plug can be realized, and assembly efficiency is higher.The base 11 is provided with two screws 15, and the shell 12 is provided with fixed column 123 connected with two screws 15.The base is connected on the shell by two screws, so as to facilitate the assembly of base and shell, and assembly is more convenient.The circumferential wall of the shell 12 is respectively provided with a plurality of anti-skid grooves 124.The anti-skid groove can play the effect of anti-skid, so as to facilitate user to use, and use is more convenient.

[0015] The gland for pressing wire is provided on the shell, so that the connection of wire and shell can be more firm, and connection reliability is higher, and pin assembly adopts modular structure design, so as to be favorable to realize the modular assembly of pin assembly, base and shell, and assembly efficiency is higher.

Claims

1. A plug, comprising a housing and a pin assembly, characterized in that: The housing includes a base and an outer shell mounted on the base. A receiving cavity for placing a pin assembly is formed between the base and the outer shell. A wire inlet hole is provided with a wire placement groove. A pressure cap is provided on the outer shell to cover the wire placement groove. Fasteners are connected between the pressure cap and the outer shell. A clamping cavity for clamping the wire is formed between the pressure cap and the wire placement groove. The pin assembly includes three pins mounted on the base and three terminals mounted on the base and connected to the three pins. Three locking blocks are provided at the connection points between the three pins and the three terminals. The base is provided with three locking slots that mate with the three locking blocks. The three locking blocks are respectively locked into the three locking slots, forming a locking engagement between the three locking blocks and the base.

2. The plug according to claim 1, characterized in that: The base is provided with a partition separating the three terminals.

3. The plug according to claim 1 or 2, characterized in that: The pressure cap has a pressure protrusion on the side facing the wire groove for pressing the wire.

4. The plug according to claim 1 or 2, characterized in that: The terminal block includes a terminal block and a terminal screw on one end of the terminal block. The other end of the terminal block has a bent riveting part that cooperates with a pin. The bent riveting part is provided with a riveting hole for riveting with the pin.

5. The plug according to claim 1 or 2, characterized in that: The base has two screws symmetrically arranged on it, and the housing has a fixing post connected to the two screws.

6. The plug according to claim 1 or 2, characterized in that: The outer casing has multiple anti-slip grooves on its peripheral wall.

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