CN215732300U

CN215732300U - Elastic pin, power plug and power adapter

Info

Publication number: CN215732300U
Application number: CN202121402735.9U
Authority: CN
Inventors: 朱礼红
Original assignee: Dongguan Jinyong Electronic Technology Co ltd
Current assignee: Dongguan Jinyong Electronic Technology Co ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2022-02-01
Anticipated expiration: 2031-06-23

Abstract

The utility model discloses an elastic pin, a power plug and a power adapter. The elastic pin comprises a pin main body and an elastic piece installed on the pin main body; The other side of the main body is provided with an escape hole and penetrates the installation recess on one side of the main body of the pin; the elastic piece has an elastic arm and an elastic contact convex part located at the free end of the elastic arm; the elastic arm is installed in the installation recess, so The elastic contact convex portion protrudes from the other side of the main body of the pin from the self-avoiding hole. In this way, the plug-in tightening force can be effectively improved, and poor contact can be avoided. At the same time, the adaptability of the pins is better. At the same time, the structure is simple, the design is ingenious and reasonable, and it is easy to manufacture and assemble. It can be widely used in various applications. It is suitable for promotion and application on products such as power plugs and power adapters.

Description

Elastic pin, power plug and power adapter

Technical Field

The utility model relates to the technical field of pin structures, in particular to an elastic pin, a power plug and a power adapter.

Background

The plug pin is connected with a mains supply end, the plug pin is generally inserted into the jack to form electric connection at present, the existing plug pin is generally made of metal and is in a sheet shape, although the sizes of the plug pin and the jack hole have corresponding specifications, the plug pin is limited by manufacturing errors, operation angles during plugging and unplugging use and the like, when the plug pin is actually used, poor contact often occurs, and sometimes, the plug pin is too tight to cause unsmooth insertion and the like.

Therefore, a new technical solution is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to the defects in the prior art, and the main object of the present invention is to provide an elastic pin, a power plug and a power adapter, which effectively improve the plugging and unplugging tight fitting force, avoid poor contact, and have better adaptability and universality of the pin.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an elastic pin comprises a pin body and an elastic piece arranged on the pin body; wherein:

one side of the pin main body is provided with an installation concave position, and the other side of the pin main body is provided with an avoidance hole which penetrates through the installation concave position on one side of the pin main body;

the elastic piece is provided with an elastic arm and an elastic contact convex part positioned at the free end of the elastic arm; the elastic arm is arranged in the mounting concave position, and the elastic contact convex part is protruded out of the other side of the pin body from the avoiding hole.

Preferably, the elastic arm extends forwards obliquely towards the other side, correspondingly, the mounting concave position is provided with an inclined surface extending forwards obliquely towards the other side, and the elastic arm is arranged along the inclined surface; the avoiding hole is positioned on the front side of the inclined plane.

As a preferred scheme, the rear end of the elastic arm is provided with a fixing part, one side of the pin body is provided with a fixing concave position, the fixing concave position is communicated with the rear end of the mounting concave position, and the fixing part is adapted to the fixing concave position.

Preferably, the fixing portion has a first stopping portion for preventing the elastic member from being pulled out forward, the fixing recess is correspondingly formed with a stopping step, and the first stopping portion is limited by the stopping step.

As a preferred scheme, the rear end of the pin body is provided with an installation part, the fixing concave position extends to the installation part, and the fixing part extends to the installation part to form overlapping with the installation part.

Preferably, the rear end of the elastic arm and the pin body are overlapped to form a mounting and fixing structure together.

Preferably, the rear end of the pin body is provided with a second stopping part for preventing the pin body from being pulled out forwards.

Preferably, the pin body is in a flat sheet shape, and one of one side of the pin body and the other side of the pin body is the left side, and the other side of the pin body is the right side.

A power plug comprises a plug main body, wherein the plug main body is provided with a two-pin plug or a three-pin plug, and a pin of the two-pin plug or the three-pin plug is an elastic pin of any one of the above.

A power adapter comprises a power adapter main body; the power adapter main body is provided with a shell, a circuit board arranged in the shell, a power supply input end and a power supply output end which are respectively connected with the circuit board; the power supply input end is a two-pin plug or a three-pin plug, and the pin of the two-pin plug or the three-pin plug is an elastic pin of any one of the preceding items.

Compared with the prior art, the plug pin structure has the advantages and beneficial effects, and particularly, according to the technical scheme, the plug pin structure mainly effectively improves the plugging tight-fitting force, avoids poor contact, has better adaptability and universality of the plug pin, is simple in structure, ingenious and reasonable in design, easy to produce, manufacture and assemble, can be widely applied to various products such as power plugs, power adapters and the like with the plug pin structure, and is suitable for popularization and application.

To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a perspective view of a first embodiment of the present invention;

FIG. 2 is a top view of a first embodiment of the present invention;

FIG. 3 is a cross-sectional view of a first embodiment of the present invention;

FIG. 4 is an enlarged fragmentary view of FIG. 3;

FIG. 5 is an exploded view of a first embodiment of the present invention;

FIG. 6 is a perspective view of a pin according to a first embodiment of the present invention;

FIG. 7 is a top view of a pin according to an embodiment of the present invention

FIG. 8 is an exploded view of a pin according to one embodiment of the present invention;

FIG. 9 is a partial assembly structure view (embodying the mounting structure of the pins) of a first embodiment of the present invention;

FIG. 10 is a perspective view of a second embodiment of the present invention;

FIG. 11 is a perspective view of a third embodiment of the present invention;

FIG. 12 is a perspective view of a fourth embodiment of the present invention;

FIG. 13 is a perspective view of a fifth embodiment of the present invention;

FIG. 14 is a perspective view of a sixth embodiment of the present invention;

fig. 15 is a perspective view of a seventh embodiment of the present invention.

The attached drawings indicate the following:

housing 10

USB female seat accommodating groove 11

Circuit board 20

USB female socket 30

Extension line 40

Rope hanging part 41

Supply input 50

Pin body 51

Mounting recess 511

Dodging hole 512

Fixed concave position 513

Stop step 514

Mounting portion 515

Second stop portion 516

Card slot 517

Elastic member 52

Resilient arm 521

Elastic contact protrusion 522

Fixed part 523

First stop portion 524.

Detailed Description

Referring to fig. 1 to 15, specific structures of various embodiments of the present invention are shown. The elastic pins can be applied to various products such as power plugs, power adapters and the like.

First, referring to fig. 6 to 9, an elastic pin includes a pin body 51 and an elastic member 52 installed on the pin body 51; wherein: one side of the pin body 51 is provided with an installation concave 511, and the other side of the pin body 51 is provided with an avoidance hole 512 penetrating through the installation concave 511 on one side of the pin body 51;

the elastic member 52 has an elastic arm 521 and an elastic contact protrusion 522 at the free end of the elastic arm 521; the elastic arm 521 is installed in the installation recess 511, and the elastic contact protrusion 522 protrudes from the avoiding hole 512 to the other side of the pin body 51. Generally, the rear ends of the elastic arms 521 are overlapped with the pin body 51 to form a fixing structure.

The elastic arm 521 extends obliquely forward toward the other side, accordingly, the mounting recess 511 has an inclined surface extending obliquely forward toward the other side, and the elastic arm 521 is arranged along the inclined surface; the avoiding hole 512 is located at the front side of the inclined plane. The rear end of the elastic arm 521 is provided with a fixing part 523, one side of the pin body 51 is provided with a fixing concave part 513, the fixing concave part is communicated with the rear end of the mounting concave part 511, and the fixing part 523 is adapted in the fixing concave part 513. The fixing portion 523 has a first stopping portion 524 for preventing the elastic member 52 from being pulled out forward, the fixing recess 513 is correspondingly formed with a stopping step 514, and the first stopping portion 524 is limited by the stopping step 514. The rear end of the pin body 51 is provided with an installation part 515, the fixing concave part 513 extends to the installation part 515, and the fixing part 523 extends to the installation part 515 to form overlapping with the installation part 515. The rear end of the pin body 51 is provided with a second stopping portion 516 that prevents the pin body 51 from falling out forward.

Preferably, the pin body 51 has a flat sheet shape, and one side of the pin body 51 and the other side of the pin body 51 are left side and right side respectively. The upper side and the lower side of the rear end of the pin main body 51 are both provided with a clamping groove 517, and when the pin main body is installed, the elastic pin is positioned in the vertical direction through the clamping grooves 517 on the upper side and the lower side in a limiting mode.

Referring to fig. 11 to 15, a power plug includes a plug main body, the plug main body has a two-pin plug or a three-pin plug, and the pin of the two-pin plug or the three-pin plug is the above-mentioned elastic pin. Normally, the elastic contact protrusion 522 may be protruded outward, as shown in fig. 11 and 12, the elastic contact protrusion 522 of the left pin is protruded to the left, and the elastic contact protrusion 522 of the right pin is protruded to the right; in the actual design, slight variations are possible, such as: as shown in fig. 13, the elastic contact protrusion 522 is protruded inward, that is: the elastic contact protrusion 522 of the left pin protrudes to the right, and the elastic contact protrusion 522 of the right pin protrudes to the left. Similarly, as shown in fig. 14 and 15, the protruding direction of the elastic contact protrusion 522 of the three pins of the three-pin plug can be freely changed, but not limited thereto.

As shown in fig. 1 to 5 and 10, a power adapter includes a power adapter main body; the power adapter main body is provided with a shell 10, a circuit board 20 arranged in the shell 10, and a power supply input end 50 and a power supply output end which are respectively connected with the circuit board 20; the power input 50 is a two-pin plug or a three-pin plug, and the pin of the two-pin plug or the three-pin plug is the elastic pin.

Fig. 1 to 5 show a flexible docking power adapter, in which the power supply output terminal is removably connected to the circuit board 20 through an extension line 40 with respect to the inside and outside of the housing 10; a USB female seat accommodating groove 11 is concavely arranged on one side of the shell 10; one end of the extension line 40 is connected to the circuit board 20, and the other end thereof extends into the USB female socket accommodating groove 11 to be connected to the USB female socket 30; the female seat 30 of USB adapts to in the female seat holding tank 11 of USB, just, the female seat 30 of USB can outwards be pulled for the female seat 30 of USB breaks away from the female seat holding tank 11 of USB's restriction and can swing the setting through extension line 40. Preferably, a thread passing hole is formed in a side surface of the housing 10, and the extension cord 40 is exposed outside the housing 10 from the thread passing hole to form a cord hanging portion 41. The side of the housing 10 may also be provided with a locking element to releasably lock and position the string hanging portion 41, so that when the locking element locks and positions the string hanging portion 41, the size and position of the string hanging portion 41 are fixed, and indirectly the pull-out length of the USB female socket 30 is fixed, or the USB female socket 30 is located in the USB female socket accommodating groove 11 and fixed. In this embodiment, the two wire passing holes are provided, the extension wire 40 sequentially passes through the two wire passing holes, and the rope hanging portion 41 is formed between the two wire passing holes. Preferably, the USB female socket receiving groove 11 and the USB female socket 30 are tapered with a large outside and a small inside that are matched and profiled, on one hand, the tapered design facilitates the USB female socket 30 to have a good guiding function when entering or pulling out the USB female socket receiving groove 11, and on the other hand, due to the tapered design with a large outside and a small inside, when the USB female socket 30 is partially pulled out of the USB female socket receiving groove 11, the USB female socket 30 can also swing within a certain range (for example, within a limited range of the USB female socket receiving groove 11). During actual design and manufacture, the magnetic attraction piece can be arranged at the inner end of the USB female seat accommodating groove 11, and the USB female seat 30 is attracted by the magnetic attraction piece and positioned in the USB female seat accommodating groove 11.

In the power adapter shown in fig. 10, the USB female socket 30 is fixedly disposed on the housing 10.

When the elastic pins are applied to the power adapter, the power adapter is not limited to the power adapters shown in fig. 1 to 5 and 10, and the shape and structure of the power adapter may be variously changed.

The utility model mainly aims to effectively improve the plugging close-fitting force, avoid poor contact, simultaneously have better adaptability and universality of the plug pins, have simple structure, ingenious and reasonable design and easy production, manufacture and assembly, can be widely applied to various products such as power plugs, power adapters and the like with plug pin structures, and is suitable for popularization and application.

Claims

1. An elastic pin, characterized in that: it comprises a main body of the pin and an elastic piece installed in the main body of the pin; wherein:

One side of the main body of the pin is provided with an installation recess, and the other side of the main body of the pin is provided with an escape hole that penetrates the installation recess on one side of the main body of the pin;

The elastic member has an elastic arm and an elastic contact convex portion located at the free end of the elastic arm; the elastic arm is installed in the installation recess, and the elastic contact convex portion protrudes from the avoidance hole on the other side of the pin body.

2 . The elastic pin according to claim 1 , wherein the elastic arm extends obliquely forward toward the other side, and correspondingly, the mounting recess has a slanted extension toward the other side. 3 . an inclined plane, the elastic arms are arranged along the inclined plane; the escape hole is located on the front side of the inclined plane.

3 . The elastic pin according to claim 1 , wherein the rear end of the elastic arm is provided with a fixing portion, and one side of the main body of the pin is provided with a fixing recess, and the fixing recess is connected to the The rear end of the installation recess is fitted, and the fixing portion is fitted in the fixing recess.

4 . The elastic pin according to claim 3 , wherein the fixing portion has a first stop portion for preventing the elastic member from coming out forward, the fixing recess is correspondingly formed with a stop step, and the The first stop portion is limited by the stop step.

5 . The elastic pin according to claim 3 , wherein the rear end of the pin body has a mounting portion, the fixing recess extends to the mounting portion, and the fixing portion extends to the mounting portion so as to be connected with the mounting portion. 6 . The parts are stacked.

6 . The elastic pin according to claim 1 , wherein the rear end of the elastic arm and the main body of the pin are stacked to form a co-installation and fixing structure. 7 .

7 . The elastic pin according to claim 1 , wherein the rear end of the pin main body is provided with a second stopper for preventing the pin main body from coming out forward. 8 .

8 . The elastic pin according to claim 1 , wherein the main body of the pin is in the shape of a flat sheet, one side of the main body of the pin and the other side of the main body of the pin are the left side, The other is the right side.

9 . A power plug, characterized in that it comprises a plug body, the plug body has a two-pin plug or a three-pin plug, and the pins of the two-pin plug or the three-pin plug are the ones described in any one of claims 1 to 8 an elastic pin.

10. A power adapter, characterized in that: comprising a power adapter main body; the power adapter main body has a casing, a circuit board arranged in the casing, and is respectively connected to a power supply input end and a power supply output end of the circuit board; The power supply input end is a two-pin plug or a three-pin plug, and the pins of the two-pin plug or the three-pin plug are elastic pins according to any one of claims 1 to 8 .