Plug

Abstract

The utility model relates to a plug, which comprises a plug rod, a shell arranged on the plug rod, a wire contact pin arranged in the shell and a wire plug bush arranged in the shell and connected with the wire contact pin, one end of the plug rod is provided with a threaded connection port extending out of the shell, a nut is arranged on the threaded connection port, and the wire plug bush is connected with the wire contact pin. One end of the inserting rod is provided with an inserting part extending out of the shell, one end of the electric wire inserting sleeve is provided with an inserting hole matched with the electric wire inserting needle, one end of the electric wire inserting needle is provided with an inserting rod part matched with the inserting hole, an elastic piece matched with the electric wire inserting needle is arranged in the inserting hole, and when the inserting rod part of the electric wire inserting needle is inserted into the inserting hole in a penetrating mode, the inserting rod part of the electric wire inserting needle is inserted into the inserting hole. And the elastic sheet is pressed against a plunger of the wire pin. The utility model has the advantages of simple structure, stable and reliable performance, reliable connection and convenient installation.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to a plug used on a welding gun. Background Art

[0002] At present, welding guns are one of the important tools that are indispensable for welding operations in industrial production and processing. The working principle of a welding gun is to use the high current and high voltage of the welding machine to generate heat that is gathered at the head of the welding gun to melt the welding wire. The melted welding wire penetrates into the part to be welded, and after cooling, the welded objects are firmly connected into one. The structural design of the plug on the existing welding gun is relatively complicated. The connection between the plug rod and the shell is not tight, the plug rod and the shell are easy to loosen, and the connection between the wire pin and the wire socket of the plug is unreliable. When the plug is vibrated, the wire pin and the wire socket are prone to momentary disconnection, and the connection reliability is not high. In addition, the quick-conversion plug has the defects of unreliable performance and inconvenient installation. Summary of the invention

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a plug with simple structure, stable and reliable performance, reliable connection and convenient installation.

[0004] To achieve the above-mentioned purpose, the utility model adopts a plug, including an insertion rod, a shell arranged on the insertion rod, a wire pin arranged in the shell, and a wire sleeve arranged in the shell and connected to the wire pin, one end of the insertion rod has a threaded connection port extending outside the shell, a nut is arranged on the threaded connection port, one end of the insertion rod has a plug-in portion extending outside the shell, one end of the wire sleeve has a socket matching with the wire pin, one end of the wire pin has a rod portion matching with the socket, a spring piece matching with the wire pin is arranged in the socket, and when the rod portion of the wire pin is inserted into the socket, the spring piece contacts the rod of the wire pin.

[0005] The beneficial effects of the above structure are as follows: the two ends of the plug are respectively provided with a threaded connection port and a plug-in portion, so that the installation of the plug is facilitated and the installation is more convenient. The spring piece of the wire plug contacts the plug-in portion of the plug pin, which can increase the contact pressure between the wire plug and the wire socket, and can ensure that the connection between the wire plug and the wire socket is more compact and the connection reliability is higher. Therefore, the plug has the advantages of simple structure, stable and reliable performance, reliable connection, and convenient installation.

[0006] In particular, the housing is provided with a wiring nut, the wiring nut is provided with a wiring screw, one end of the wiring screw passes through the housing and abuts against the peripheral wall of the plug rod. The housing is provided with a wiring screw, so that the wiring of the plug is convenient and the wiring is more convenient.

[0007] In particular, a receiving groove is provided on the housing corresponding to the wiring nut, and the wiring nut is engaged in the receiving groove, and a clamping fit between the wiring nut and the housing is formed. The wiring nut is engaged in the receiving groove, so that the assembly of the wiring nut and the housing is convenient and the assembly is more convenient.

[0008] In particular, the plug rod is provided with a protective cover covering the threaded connection port. The protective cover plays a protective role, can prevent the threaded connection port of the plug rod from being exposed, and is conducive to improving the protection performance of the plug.

[0009] In particular, a limiting groove is provided on the outer peripheral wall of the plug rod, and a limiting block matching the limiting groove is provided in the shell, the limiting block is engaged in the limiting groove, and constitutes a snap fit between the plug rod and the shell. The limiting block of the shell is engaged in the limiting groove of the plug rod, thereby ensuring a more compact and firm connection between the plug rod and the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a stereogram of an embodiment of the utility model.

[0011] Figure 2 It is a cross-sectional view of an embodiment of the utility model.

[0012] Figure 3 This is an exploded view of an embodiment of the utility model. DETAILED DESCRIPTION

[0013] like Figures 1 to 3 As shown, an embodiment of the utility model is a plug, comprising an insertion rod 10, a shell 11 arranged on the insertion rod 10, a wire pin 12 arranged in the shell 10, and a wire sleeve 13 arranged in the shell 10 and connected to the wire pin 12. One end of the insertion rod 10 has a threaded connection port 101 extending outside the shell 10, and a nut 14 is arranged on the threaded connection port 101. One end of the insertion rod 10 has a plug-in portion 102 extending outside the shell 10. One end of the wire sleeve 13 has a socket 131 matched with the wire pin 12. One end of the wire pin 12 has a plug rod 121 matched with the socket 131. A spring piece 132 matched with the wire pin 12 is arranged in the socket 131. When the plug rod portion 121 of the wire pin 12 is inserted into the socket 131, the spring piece 132 abuts against the plug rod 121 of the wire pin 12.

[0014] like Figure 2 and 3As shown, the housing 11 is provided with a wiring nut 15, and the wiring nut 15 is provided with a wiring screw 16, one end of which passes through the housing 11 and contacts the peripheral wall of the plug 10. The housing is provided with a wiring screw, so as to facilitate the wiring of the plug and make the wiring more convenient. The housing 11 is provided with a receiving groove 111 corresponding to the wiring nut 15, and the wiring nut 15 is engaged in the receiving groove 111, and constitutes a snap-fit ​​fit between the wiring nut 15 and the housing 11. The wiring nut is engaged in the receiving groove, so as to facilitate the assembly of the wiring nut and the housing, and make the assembly more convenient. The plug 10 is provided with a protective cover 17 covering the threaded connection port 101. The protective cover plays a protective role, which can prevent the threaded connection port of the plug from being exposed, and is conducive to improving the protective performance of the plug. The outer wall of the insertion rod 10 is provided with a limiting groove 103, and the housing 11 is provided with a limiting block 112 that matches the limiting groove 103. The limiting block 112 is engaged in the limiting groove 103, and constitutes a snap fit between the insertion rod 10 and the housing 11. The limiting block of the housing is engaged in the limiting groove of the insertion rod, thereby ensuring a more compact and firm connection between the insertion rod and the housing.

[0015] The two ends of the plug are respectively provided with a threaded connection port and a plug-in portion, so as to facilitate the installation of the plug and make the installation more convenient. The spring piece of the wire plug contacts the plug-in portion of the pin, which can increase the contact pressure between the wire plug and the wire socket, and can ensure that the connection between the wire plug and the wire socket is more compact and the connection reliability is higher. Therefore, the plug has the advantages of simple structure, stable and reliable performance, reliable connection and convenient installation.

Claims

1. A plug, characterized in that: It includes an insertion rod, a shell arranged on the insertion rod, a wire pin arranged in the shell, and a wire sleeve arranged in the shell and connected to the wire pin. One end of the insertion rod has a threaded connection port extending outside the shell, and a nut is arranged on the threaded connection port. One end of the insertion rod has a plug-in portion extending outside the shell, one end of the wire sleeve has a socket matching with the wire pin, one end of the wire pin has a rod portion matching with the socket, and a spring piece matching with the wire pin is arranged in the socket. When the rod portion of the wire pin is inserted into the socket, the spring piece contacts the rod of the wire pin.

2. The plug according to claim 1, characterized in that: The shell is provided with a wiring nut, and the wiring nut is provided with a wiring screw. One end of the wiring screw passes through the shell and abuts against the peripheral wall of the insertion rod.

3. The plug according to claim 2, characterized in that: An accommodating groove is arranged on the shell corresponding to the wiring nut, and the wiring nut is engaged in the accommodating groove to form a clamping fit between the wiring nut and the shell.

4. The plug according to claim 1 or 2, characterized in that: The insert rod is provided with a protective cover which covers the threaded connection port.

5. The plug according to claim 1 or 2, characterized in that: A limiting groove is arranged on the outer peripheral wall of the insertion rod, and a limiting block matched with the limiting groove is arranged in the shell. The limiting block is engaged in the limiting groove and constitutes a snap fit between the insertion rod and the shell.

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