CN210052908U

CN210052908U - Plug connector with sealing function

Info

Publication number: CN210052908U
Application number: CN201921437559.5U
Authority: CN
Inventors: 涂海文; 张洪超; 王伟
Original assignee: YITENG ELECTRONIC TECHNOLOGY (KUNSHAN) Co Ltd
Current assignee: Shenzhen Taihua Internet Technology Co ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-02-11
Anticipated expiration: 2029-08-30

Abstract

The utility model discloses a plug connector of sealed function of utensil, it includes a plug body, an elastic ring and a nut. The elastic ring is mounted to the outlet of the plug body and assembled in a sleeve. The inner wall of the nut clamps the sleeve, thereby compressing the elastic ring. The utility model discloses plug connector is through setting up this elastic ring and relying on this elastic ring of rotatory locking of nut to improve this plug connector's leakproofness and locking force, make this plug connector safe firm, thereby ensure this plug connector's safety in utilization.

Description

Plug connector with sealing function

Technical Field

The present invention relates to a connector, and more particularly to a plug connector with a sealing function.

Background

Generally, plug connectors are frequently used, and poor sealing performance of the tail end portion of the plug often occurs, so that the internal cable is loosened, and even the safety problem of the plug connector is directly affected.

Therefore, there is a need for a new plug connector that overcomes the deficiencies of the prior art.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a plug connector with sealing function, which has an elastic ring at the inner wall of the tail end thereof, and is locked by the nut, thereby improving the sealing and locking force of the plug connector and further improving the safety of the plug connector.

Other objects and advantages of the present invention can be further understood from the technical features disclosed in the present invention.

In order to achieve the purpose, the utility model adopts the following technical scheme: a plug connector with a sealing function comprises a plug body, an elastic ring and a nut. The plug body at least comprises an insulating shell, an interface positioned at the front end of the insulating shell, a wire outlet positioned at the tail end of the insulating shell and a plurality of power terminals positioned in the insulating shell; wherein the tail end of the insulating shell comprises an external thread section and a sleeve pipe which horizontally extends backwards from the external thread section. The elastic ring is mounted to the outlet of the plug body and assembled in the sleeve. The nut has an internal thread section and a closing section; the internal thread section is matched with the external thread section, and the inner wall of the nut clamps the sleeve, so that the elastic ring is pressed.

In one embodiment, the sleeve is cylindrical and is provided with a circle of cantilever extending backwards and horizontally; the outlet is formed by surrounding the cantilever.

In one embodiment, the elastic ring is a rubber sealing ring, and the outer surface of the elastic ring is tightly attached to the inner side wall of the cantilever.

In one embodiment, the inner diameter of the closing section of the nut is smaller than the inner diameter of the internal thread section.

In one embodiment, the plug connector further includes a dust cap mounted to the rear end of the insulative housing.

In one embodiment, the dust cap has a collar and a cylindrical plug connected to the collar, wherein the collar is sleeved on the tail end of the insulating housing, and the plug can be plugged into at least the closing section of the nut.

In one embodiment, the plug body is substantially flat, and the male threaded section has flat upper and lower surfaces.

Compared with the prior art, the utility model discloses the plug connector of sealed function is through increasing an elastic ring in the inner wall department of its tail end to rely on the rotatory locking of nut, with leakproofness and the locking force that improves this plug connector, make this plug connector safe firm, thereby ensure this plug connector's safety in utilization.

Drawings

Fig. 1 is a schematic perspective view of the plug connector of the present invention.

Fig. 2 is a schematic perspective view of the plug connector of the present invention along another direction.

Fig. 3 is an exploded schematic view of the plug connector of the present invention.

Fig. 4 is an exploded schematic view of the plug connector of the present invention along another direction.

Fig. 5 is a schematic structural view of the elastic ring of the plug connector according to the present invention after being assembled to the tail end of the connector.

Fig. 6 is a schematic view of the plug connector of the present invention with a dust cover according to another embodiment.

Fig. 7 is a schematic structural view of the plug connector of the present invention shown in fig. 6 along another direction.

Fig. 8 is a schematic view of the plug connector of the present invention shown in fig. 6 after being combined with the dust cover.

The main reference numbers in the drawings of the specification of the present invention are as follows:

plug connector 1 plug body 10

Insulating housing 11 interface 12

External thread section 14 of outlet 13

Sleeve 15 cantilever 150

Elastic ring 20 nut 30

Internal thread section 31 and closing section 32

Dust cap 40 collar 41

A plug 42.

Detailed Description

The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc. refer to directions of the attached drawings only. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention.

Referring to fig. 1 to 4, the plug connector 1 with sealing function of the present invention includes a plug body 10, an elastic ring 20 installed at the tail end of the plug body 10, and a nut 30 installed at the tail end of the plug body 10 and pressing the elastic ring 20.

As shown in fig. 3 and 4, the plug body 10 at least has an insulating housing 11, an interface 12 located at the front end of the insulating housing 11, an outlet 13 located at the rear end of the insulating housing 11, and a plurality of power terminals located inside the insulating housing 11. The heads of the power terminals are located in the interface 12, but the rest of the structure of the power terminals is buried inside the insulating housing 11, not shown explicitly. In addition, the plug body 10 further includes a cable extending backward from the rear end of the insulating housing 11, but since the present invention does not relate to the cable structure, the cable is omitted here and is not shown in the drawings.

As shown in fig. 3 and 4, the plug body 10 is substantially flat, and particularly, the insulating housing 11 is flat, and an external thread section 14 and a sleeve 15 horizontally extending from the external thread section 14 are disposed at the tail end of the insulating housing 11. Wherein the male screw section 14 has flat upper and lower surfaces so that the thread of the male screw section 14 is broken at the upper and lower surfaces without affecting the use of the overall thread. The sleeve 15 is cylindrical and has a ring of rearwardly extending horizontally cantilevered arms 150 formed thereon. In this embodiment, the outlet 13 is defined by the sleeve 15, and more specifically, the outlet 13 is defined by the cantilever 150 and can receive the elastic ring 20 therein.

As shown in fig. 3 and 4, the elastic ring 20 has a cylindrical shape, and in this embodiment, the elastic ring 20 is a rubber seal.

As shown in fig. 5, the elastic ring 20 is mounted to the rear end of the insulative housing 11 (i.e., the rear end of the plug body 10). Specifically, the elastic ring 20 is mounted to the outlet 13 (reference numeral is shown in fig. 4) of the plug body 10 and can be fitted into the sleeve 15. The outer surface of the elastic ring 20 is closely attached to the inner sidewall of the cantilever 150. Furthermore, the cable (not shown) may pass through the middle of the elastic ring 20 to extend out of the plug connector 1.

As shown in fig. 3 and 4, the nut 30 has an internal thread section 31 and a closing-in section 32 without internal threads. The inner diameter of the closing-in section 32 is smaller than the inner diameter of the internal thread section 31.

As shown in fig. 1 and 2, and also in fig. 3 and 4, the nut 30 is mounted on the rear end of the insulating housing 11 and can clamp the elastic ring 20. Specifically, the internal thread section 31 of the nut 30 is engaged with the external thread section 14 of the plug body 10, and the inner wall of the nut 30 clamps the sleeve 15 at the rear end and also presses the elastic ring 20, so that the rear end of the plug connector 1 has strong sealing and locking force. In addition, in practice, the nut 30 can be screwed forward, and the more the nut is screwed forward, the tighter the spring ring 20 is pressed, and the stronger the sealing and locking force of the tail end.

As shown in fig. 6 and 7, in another embodiment, the plug connector 1 of the present invention further includes a dust cap 40, the dust cap 40 is mounted on the rear end of the insulating housing 11 for sealing the rear end to prevent dust from entering the inside of the plug connector 1 when no cable is installed, thereby affecting the electrical performance of the plug connector 1.

In detail, as shown in fig. 6, 7 and 8, the dust cap 40 has a collar 41 and a cylindrical plug 42 connected to the collar 41. In use, the collar 41 is fitted over the end of the insulating housing 11 and the plug 42 is inserted into the necked-in section 32 of the nut 30 and further into the resilient ring 20.

To sum up, the utility model discloses plug connector 1 of sealed function settles an elastic ring 20 through inner wall (sleeve pipe 15) department at its tail end to rely on this nut 30 rotation locking, with leakproofness and the locking force that improves this plug connector 1, make this plug connector 1 safe and firm, thereby ensure this plug connector 1's safety in utilization.

Claims

1. A plug connector with a sealing function is characterized in that: comprises a plug body, an elastic ring and a nut;

the plug body at least comprises an insulating shell, an interface positioned at the front end of the insulating shell, a wire outlet positioned at the tail end of the insulating shell and a plurality of power terminals positioned in the insulating shell; wherein the tail end of the insulating shell comprises an external thread section and a sleeve pipe horizontally extending backwards from the external thread section;

the elastic ring is arranged at the outlet of the plug body and assembled in the sleeve;

the nut has an internal thread section and a closing section; the internal thread section is matched with the external thread section, and the inner wall of the nut clamps the sleeve, so that the elastic ring is pressed.

2. The plug connector with sealing function according to claim 1, wherein: the sleeve is cylindrical, and a circle of cantilever extending backwards and horizontally is formed on the sleeve; the outlet is formed by surrounding the cantilever.

3. The plug connector with sealing function according to claim 2, wherein: the elastic ring is a rubber sealing ring, and the outer surface of the elastic ring is tightly attached to the inner side wall of the cantilever.

4. The plug connector with sealing function according to claim 1, wherein: the inner diameter of the closing section of the screw cap is smaller than that of the internal thread section.

5. The plug connector with sealing function according to claim 1, wherein: the plug connector also comprises a dustproof cover which is arranged at the tail end of the insulating shell.

6. The plug connector with sealing function according to claim 5, wherein: the dustproof cover is provided with a lantern ring and a columnar plug connected with the lantern ring, wherein the lantern ring is sleeved at the tail end of the insulating shell, and the plug can be plugged into the closing-in section of the screw cap at least.

7. The plug connector with sealing function according to claim 1, wherein: the plug body is approximately flat, and the external thread section is provided with flat upper and lower surfaces.