3PIN connecting plug

Abstract

The utility model discloses a 3PIN connecting plug, which relates to the technical field of connecting plugs, solves the problems that the existing connecting plug is designed in a split manner, is inconvenient to use and cannot adjust the length of a lead, and comprises a terminal shell, the terminal shell is provided with a terminal, the terminal shell is provided with a terminal cover through a screw, and the terminal cover is connected with the terminal shell through the screw. The terminal is connected with a wire, the wire is connected with an electric connecting seat, the electric connecting seat is connected with a contact pin, the outer side of the wire is provided with a length adjusting mechanism, the terminal, the wire and the electric connecting seat are prepared in an integrated extrusion mode, the front end of the electric connecting seat is provided with an external thread, and the external thread is connected with the contact pin. The pin is fixedly connected with an internal thread connecting shell, and the external thread is in threaded connection with the internal thread connecting shell. According to the utility model, the terminal, the lead and the electrical connecting seat are prepared through integral extrusion, the use is convenient, the lead can be wound through the two winding rods by rotating the rotating handle, and the length of the lead can be adjusted.

Description

Technical Field

[0001] The utility model relates to the field of connecting plugs, in particular to a 3PIN connecting plug. Background Art

[0002] Plug connection, a plug connector with an overcurrent protection plug, comprising: The A-end plug is connected to the B-end connector through a connecting wire C. An insurance tube is built in the A-end plug and is respectively connected to the live wire and the live wire terminal at both ends. The neutral wire terminal is directly connected to the neutral wire. An inner bracket, characterized in that: The A-end plug is connected to the B-end connector through a connecting wire C. An inner bracket is arranged inside the B-end connector. The neutral wire and the live wire are respectively connected to the barb elastic piece terminals. There are barbs inside the barb elastic piece terminals, and they are installed at the positions of the jacks on both sides inside the B-end connector. The barb elastic piece terminals are respectively clamped inside the groove brackets on both sides inside the B-end connector. The power plug connector, as a front-end part, plays a role in overcurrent protection. It is connected to the small household appliance power plug in a plug-in and disposable manner, and a safety protection device is configured without changing the structure of the electrical appliance itself.

[0003] Chinese Utility Model Publication (Announcement) No.: CN205901003U discloses an electrical connection plug, which relates to the field of electrical connection devices, enabling it to be plugged into a mobile terminal to directly connect to an external device, and being able to directly connect to other communication wires or charging wires. The main technical solution adopted is: An electrical connection plug, which includes: A plugging end, the first end of the plugging end is a plug interface; A connection end, the first end of the connection end is connected to the second end of the plugging end; Two groups of electrical connection base points are arranged at the second end of the connection end, and a plurality of electrical connection base points are arranged at a predetermined position on the side surface of the connection end. This electrical connection plug can be connected to other point connection wires through the electrical connection base points arranged at the second end of the connection end. When the electrical connection plug of the present utility model can be continuously plugged into a mobile terminal, it can be directly electrically connected to an external device without the need to connect other wires, enabling the electrical connection plug and the mobile terminal to be integrated into one, making it more convenient for the mobile terminal to connect to an external device.

[0004] In the process of implementing the present utility model, the inventor found that in this technology, the existing connection plugs are designed as separate parts, which are inconvenient to use and cannot adjust the length of the wire. Therefore, a 3PIN connecting plug is now proposed. Summary of the Utility Model

[0005] In order to improve the problems that the existing connection plugs are designed as separate parts, inconvenient to use, and cannot adjust the length of the wire, the present utility model provides a 3PIN connecting plug.

[0006] The present utility model provides a 3PIN connecting plug, adopting the following technical solution:

[0007] A 3PIN connection plug includes a terminal housing, on which terminals are provided. A terminal cover is installed on the terminal housing by screws. Wires are connected to the terminals, and an electrical connection base is connected to the wires. A pin is connected to the electrical connection base. A length adjustment mechanism is provided on the outer side of the wire. The terminal, wire, and electrical connection base are integrally extruded and prepared.

[0008] By adopting the above technical solution, the terminal, wire, and electrical connection base are integrally extruded and prepared, which is convenient to use.

[0009] Optionally, an external thread is provided at the front end of the electrical connection base. An internally threaded connection shell is fixedly connected to the pin, and the external thread is threadedly connected to the internally threaded connection shell.

[0010] By adopting the above technical solution, the internally threaded connection shell can be threadedly connected to the external thread, which is convenient for disassembly and assembly.

[0011] Optionally, a sealing ring is provided between the external thread and the internally threaded connection shell, and the circular clamping rod is matched with the semi-circular clamping groove.

[0012] By adopting the above technical solution, the provided sealing ring is used to seal between the external thread and the internally threaded connection shell.

[0013] Optionally, a sealing gasket is provided between the terminal cover and the terminal housing.

[0014] By adopting the above technical solution, the sealing gasket is used to seal between the terminal cover and the terminal housing.

[0015] Optionally, a plurality of heat dissipation holes are provided on the electrical connection base.

[0016] By adopting the above technical solution, it is used to dissipate heat inside the electrical connection base.

[0017] Optionally, three jacks are provided on the terminal, and the wire is a PIN wire connected to the three jacks.

[0018] Optionally, the diameter of the pin is 2.35 mm and the length is 11 - 13 mm.

[0019] Optionally, the length adjustment mechanism includes a storage shell. Two through holes are symmetrically provided on the outer side of the storage shell. The wire is movably connected to the two through holes. Two circular blocking plates are rotatably installed on the storage shell. Two winding rods are fixedly installed between the two circular blocking plates. The wire is located between the two winding rods. A rotating shaft and a support shaft are respectively fixedly installed on the outside of the two circular blocking plates. The rotating shaft and the support shaft are rotatably installed on the storage shell through bearings.

[0020] By adopting the above technical solution, rotating the rotary handle drives the rotary shaft to rotate, the rotary shaft drives a circular baffle to rotate, and through the cooperation of another support shaft and the circular baffle, the wire can be wound by two winding rods, and the length of the wire can be adjusted.

[0021] Optionally, a circular plate is fixedly installed on the outer side of the rotary shaft, a circular elastic groove is fixedly installed on the inner side of the circular plate, a circular clamping rod is slidably installed in the circular elastic groove, a spring is fixedly installed between the circular clamping rod and the circular elastic groove, and a plurality of semi-circular clamping grooves are formed on the outer side of the storage shell. The plurality of semi-circular clamping grooves are arranged in a ring shape, and the circular clamping rod is matched with the semi-circular clamping grooves.

[0022] By adopting the above technical solution, when the rotary handle rotates, the circular clamping rod is pushed from one semi-circular clamping groove into the inside of another semi-circular clamping groove, and the spring provides elastic force for the circular clamping rod, which can improve the stability of the rotary handle.

[0023] In summary, the utility model has the following beneficial effects:

[0024] 1. In the utility model, the electrical connection seat is threadedly connected with the internal thread connection shell through external threads, and the arranged sealing ring is used to seal between the external threads and the internal thread connection shell. The terminal, the wire and the electrical connection seat are integrally extruded and prepared, which is convenient to use;

[0025] 2. When the length of the wire needs to be adjusted, rotating the rotary handle drives the rotary shaft to rotate, the rotary shaft drives a circular baffle to rotate, and through the cooperation of another support shaft and the circular baffle, the wire can be wound by two winding rods, and the length of the wire can be adjusted. The spring provides elastic force for the circular clamping rod, and the circular clamping rod enters the inside of another semi-circular clamping groove from one semi-circular clamping groove, which can improve the stability of the rotary handle. Reversing the rotary handle can loosen the winding of the wire and can adjust the length of the wire;

[0026] In the utility model, the terminal, the wire and the electrical connection seat are integrally extruded and prepared, which is convenient to use. Rotating the rotary handle can wind the wire by two winding rods, and the length of the wire can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of the utility model.

[0028] Figure 2 is a schematic diagram of the structure of the utility model after disassembling the storage shell and the rotary handle.

[0029] Figure 3 is the utility model Figure 2 in a schematic diagram of the upward view structure.

[0030] Figure 4It is a schematic cross-sectional structure diagram of the storage case of the present utility model.

[0031] Explanation of reference numerals:

[0032] 1. Terminal cover; 2. Terminal shell; 3. Terminal; 4. Wire; 5. Connection seat; 6. External thread; 7. Sealing ring; 8. Internal thread connection shell; 9. Pin; 10. Storage case; 11. Rotating handle; 12. Rotating shaft; 13. Circular blocking plate; 14. Winding rod; 15. Support shaft; 16. Semi-circular card slot; 17. Circular elastic slot; 18. Spring; 19. Circular clamping rod; 20. Through hole. Specific implementation manners

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the attached Figures 1-4 drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0034] Please refer to Figures 1-3 A 3PIN connection plug includes a terminal shell 2, a terminal 3 is arranged on the terminal shell 2, a terminal cover 1 is installed on the terminal shell 2 by screws, and a sealing gasket is arranged between the terminal cover 1 and the terminal shell 2. The sealing gasket is used to seal between the terminal cover 1 and the terminal shell 2, so as to effectively ensure the sealing performance between the terminal cover 1 and the terminal shell 2 and make it safer to use. A wire 4 is connected to the terminal 3, an electrical connection seat 5 is connected to the wire 4, and a plurality of heat dissipation holes are opened on the electrical connection seat 5. The heat dissipation holes are used to dissipate heat from the inside of the electrical connection seat 5, so that when the electrical connection seat 5 is in use, it is not easy to have an overheating situation and ensure the stable operation of the electrical connection seat 5. In addition, the terminal 3, the wire 4, and the electrical connection seat 5 are integrally extruded and prepared. By designing the terminal 3, the wire 4, and the electrical connection seat 5 as integrally extruded and prepared, it is more convenient to use and makes the connection between the terminal 3, the wire 4, and the electrical connection seat 5 more firm.

[0035] Referring to Figure 1 and Figure 2 , an external thread 6 is arranged at the front end of the electrical connection seat 5, an internal thread connection shell 8 is fixedly connected to the pin 9, and the external thread 6 is threadedly connected to the internal thread connection shell 8. With this structure, the internal thread connection shell 8 can be threadedly connected to the external thread 6, so that it is convenient to disassemble and assemble during use. Further, a sealing ring 7 is arranged between the external thread 6 and the internal thread connection shell 8. The sealing ring 7 is one of a rubber ring or a silicone ring. The arranged sealing ring 7 is used to seal between the external thread 6 and the internal thread connection shell 8.

[0036] Reference Figure 3 In this embodiment, three jacks are provided on the terminal 3. The wire 4 is a 3PIN wire, and three cables are connected to the three jacks. A pin 9 is connected to the electrical connection base 5. The diameter of the pin 9 is 2.35 mm and the length is 11 - 13 mm. The pin 9 is made of copper metal, so that the pin 9 has good electrical conductivity.

[0037] Reference Figure 4 As shown in Figure 4 , a length adjustment mechanism is provided on the outer side of the wire 4. The length adjustment mechanism includes a storage shell 10. Two through holes 20 are symmetrically opened on the outer side of the storage shell 10. The wire 4 is movably connected to the two through holes 20. Two circular blocking plates 13 are rotatably installed on the storage shell 10. Two winding rods 14 are fixedly installed between the two circular blocking plates 13. The wire 4 is located between the two winding rods 14. Rotating shafts 12 and support shafts 15 are respectively fixedly installed on the outer sides of the two circular blocking plates 13. The rotating shafts 12 and the support shafts 15 are rotatably installed on the storage shell 10 through bearings. It is well known that a bearing is an important component in contemporary mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. By rotating the rotating handle 11 to drive the rotation of the rotating shaft 12, the rotating shaft 12 drives the rotation of a circular blocking plate 13. Through the cooperation of the other support shaft 15 and the circular blocking plate 13, the wire 4 can be wound by the two winding rods 14, and the length of the wire 4 can be adjusted.

[0038] Reference Figure 4 As shown in Figure 4 , a circular plate 11 is fixedly installed on the outer side of the rotating shaft 12. A circular elastic groove 17 is fixedly installed on the inner side of the circular plate 11. A circular clamping rod 19 is slidably installed in the circular elastic groove 17. A spring 18 is fixedly installed between the circular clamping rod 19 and the circular elastic groove 17. A plurality of semi-circular clamping grooves 16 are opened on the outer side of the storage shell 10. The plurality of semi-circular clamping grooves 16 are arranged in a ring shape. The circular clamping rod 19 cooperates with the semi-circular clamping grooves 16. The outer end of the circular clamping rod 19 is arc-shaped, which is convenient for connecting with the semi-circular clamping grooves 16. When rotating the rotating handle 11, the circular clamping rod 19 is pushed from one semi-circular clamping groove 16 into the inside of another semi-circular clamping groove 16. The spring 18 provides elastic force for the circular clamping rod 19, which can improve the stability of the rotating handle 11.

[0039] The implementation principle of the present utility model is as follows: A gasket is provided between the terminal cover 1 and the terminal housing 2. The gasket is used to seal between the terminal cover 1 and the terminal housing 2, thereby effectively ensuring the sealing performance between the terminal cover 1 and the terminal housing 2, making it safer during use. By integrally extruding and preparing the terminal 3, the wire 4, and the electrical connection base 5, it is more convenient to use and makes the connection between the terminal 3, the wire 4, and the electrical connection base 5 more firm. In addition, a plurality of heat dissipation holes are provided on the electrical connection base 5. The heat dissipation holes are used to dissipate heat from the inside of the electrical connection base 5, so that when the electrical connection base 5 is in use, it is not easy to have a situation of overheating, ensuring the stable operation of the electrical connection base 5. Moreover, the electrical connection base 5 is threadedly connected to the internal thread connection shell 8 through an external thread 6, which is convenient for disassembly and assembly. At the same time, a sealing ring 7 is provided between the external thread 6 and the internal thread connection shell 8. The provided sealing ring 7 is used to seal between the external thread 6 and the internal thread connection shell 8. When the length of the wire 4 needs to be adjusted, rotating the rotating handle 11 drives the rotating shaft 12 to rotate. The rotating shaft 12 drives a circular blocking plate 13 to rotate. Through the cooperation of another support shaft 15 and the circular blocking plate 13, the two wire winding rods 14 can wind the wire 4, and the length of the wire 4 can be adjusted. The spring 18 provides elastic force for the circular clamping rod 19. The circular clamping rod 19 enters the inside of another semi-circular clamping groove 16 from one semi-circular clamping groove 16, which can improve the stability of the rotating handle 11. Reversing the rotating handle 11 can loosen the winding of the wire 4 and can lengthen the wire 4, improving the flexibility during use. Among them, a plurality of semi-circular clamping grooves 16 are provided on the outer side of the storage shell 10. The plurality of semi-circular clamping grooves 16 are arranged in a ring shape. The circular clamping rod 19 cooperates with the semi-circular clamping grooves 16. The outer end of the circular clamping rod 19 is arc-shaped, which is convenient for connection with the semi-circular clamping grooves 16.

[0040] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A 3PIN connection plug, comprising a terminal housing (2) provided with terminals (3) thereon, characterized in that: A terminal cover (1) is installed on the terminal housing (2) by screws. A wire (4) is connected to the terminal (3). An electrical connection base (5) is connected to the wire (4). A pin (9) is connected to the electrical connection base (5). A length adjustment mechanism is arranged on the outer side of the wire (4). The terminal (3), the wire (4), and the electrical connection base (5) are integrally extruded and prepared. A plurality of heat dissipation holes are formed in the electrical connection base (5).

2. The 3PIN connection plug as claimed in claim 1, wherein: An external thread (6) is arranged at the front end of the electrical connection base (5). An internally threaded connection shell (8) is fixedly connected to the pin (9). The external thread (6) is in threaded connection with the internally threaded connection shell (8).

3. The 3PIN connection plug according to claim 2, characterized in that: A sealing ring (7) is arranged between the external thread (6) and the internally threaded connection shell (8).

4. A 3PIN connection plug as claimed in claim 1, wherein: A gasket is arranged between the terminal cover (1) and the terminal housing (2).

5. The 3PIN connection plug according to claim 1, characterized in that: Three jacks are arranged on the terminal (3). The wire (4) is a 3PIN wire and is connected to the three jacks.

6. The 3PIN connection plug according to claim 1, characterized in that: The diameter of the pin (9) is 2.35 mm and the length is 11 - 13 mm.

7. The 3PIN connection plug according to claim 1, characterized in that: The length adjustment mechanism includes a storage shell (10). Two through holes (20) are symmetrically formed in the outer side of the storage shell (10). The wire (4) is movably connected to the two through holes (20).

8. The 3PIN connection plug according to claim 7, characterized in that: Two circular blocking plates (13) are rotatably installed on the storage shell (10). Two winding rods (14) are fixedly installed between the two circular blocking plates (13). The wire (4) is located between the two winding rods (14). A rotating shaft (12) and a support shaft (15) are respectively fixedly installed on the outsides of the two circular blocking plates (13). The rotating shaft (12) and the support shaft (15) are rotatably installed on the storage shell (10) through bearings.

9. The 3PIN connection plug according to claim 8, wherein: A circular plate (11) is fixedly installed on the outer side of the rotating shaft (12). A circular elastic groove (17) is fixedly installed on the inner side of the circular plate (11). A circular clamping rod (19) is slidably installed in the circular elastic groove (17). A spring (18) is fixedly installed between the circular clamping rod (19) and the circular elastic groove (17). A plurality of semi-circular clamping grooves (16) are formed in the outer side of the storage shell (10). The plurality of semi-circular clamping grooves (16) are arranged in a ring. The circular clamping rod (19) is matched with the semi-circular clamping grooves (16).

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