CN210806146U

CN210806146U - Core wire sealing structure

Info

Publication number: CN210806146U
Application number: CN201921292165.5U
Authority: CN
Inventors: 许瀚滨; 吴建湖; 杨正; 赵林河; 杨国平; 吕婷
Original assignee: Hangzhou Aerospace Electronic Technology Co Ltd
Current assignee: Hangzhou Aerospace Electronic Technology Co Ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-06-19
Anticipated expiration: 2029-08-09

Abstract

The utility model relates to a core wire sealing structure, which comprises a first insulator, a second insulator and a rubber sleeve, wherein the rubber sleeve is provided with a horizontal through hole, the first insulator is provided with a first taper hole, the second insulator is provided with a second taper hole, one end of the rubber sleeve is connected with the first taper hole, the other end of the rubber sleeve is connected with the second taper hole, and the middle end of the horizontal through hole is provided with an R-shaped boss; the utility model has the advantages that: the rubber sleeve atress is laminated with first bell mouth and second bell mouth respectively, the one end and the laminating of first bell mouth that make the rubber sleeve form first sealedly, the other end and the laminating of second bell mouth of rubber sleeve form the second sealedly, secondly, because the pressure at rubber sleeve both ends makes the rubber sleeve middle part inflation, lead to forming the cavity of a comprehensive parcel rubber sleeve between first insulator and the second insulator, it carries out the third to the heart yearn to make it sealed, thereby the multistage of heart yearn has been realized sealed, it is sealed to need not the casting glue, thereby improve the sealed production efficiency of heart yearn.

Description

Core wire sealing structure

Technical Field

The utility model relates to a core wire seal structure.

Background

Electric connector wide application in aviation, space flight, national defence etc. for military use system, and current electric connector includes plug and socket, be equipped with the heart yearn in plug and the socket, the heart yearn all needs to carry out seal installation through seal structure, the seal structure of current heart yearn all seals through middle casting glue, because the casting glue is sealed need solidify the casting glue, thereby whole sealing process required time has been increased, thereby holistic production efficiency has been reduced, in addition, cause heart yearn insulating layer sclerosis embrittlement easily after the casting glue solidification, lead to whole heart yearn life's reduction.

SUMMERY OF THE UTILITY MODEL

The utility model aims to reach the purpose provide exactly a heart yearn seal structure, it is sealed to need not the casting glue to improve the sealed production efficiency of heart yearn.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme: the utility model provides a core wire seal structure, includes first insulator, second insulator and rubber sleeve, be equipped with the horizontal through-hole that the heart yearn of being convenient for penetrated on the rubber sleeve, be equipped with first bell mouth on the first insulator, be equipped with second taper hole on the second insulator, the one end and the first bell mouth of rubber sleeve are connected, the other end and the second taper hole of rubber sleeve are connected, the middle-end of horizontal through-hole is equipped with the R type boss of inside extension, and when the heart yearn penetrated horizontal through-hole, the one end and the laminating of first bell mouth of rubber sleeve formed first sealed, and the other end and the laminating of second taper hole of rubber sleeve formed the second sealed, and the rubber sleeve middle part receives the pressure at both ends and expands and make first insulator and the laminating of second insulator form the cavity of a comprehensive parcel rubber sleeve to make R type boss laminating heart yearn surface insulation layer.

Preferably, the R-shaped boss comprises at least two sections, and the R-shaped boss is uniformly arranged on the inner side wall of the horizontal through hole.

Preferably, the R-shaped boss is integrally formed with the horizontal through hole.

Preferably, one end of the rubber sleeve is provided with a first conical surface matched with the first conical hole, and the other end of the rubber sleeve is provided with a second conical surface matched with the second conical hole.

Preferably, the first conical surface and the second conical surface have equal taper on the rubber sleeve.

Preferably, the first conical surface and the second conical surface are provided with chamfers.

Preferably, an arc chamfer is arranged between the first conical surface and the second conical surface.

To sum up, the utility model has the advantages that: through installing the rubber sleeve between first insulator and the second insulator, compress the rubber sleeve through first bell mouth on the first insulator and second cone hole on the second insulator, the rubber sleeve atress respectively with first bell mouth and second cone hole laminating, make the one end of rubber sleeve and the laminating of first bell mouth form first sealed, the other end and the laminating of second cone hole of rubber sleeve form the second sealed, secondly, make rubber sleeve middle part inflation because the pressure at rubber sleeve both ends, lead to forming the cavity of a comprehensive parcel rubber sleeve between first insulator and the second insulator, make it carry out the third to the heart yearn and seal, the sealing at this structure both ends is conical surface pressurized, the atress is great, consider that its sealed life-span of the accelerated ageing of high temperature and compressive stress shortens relatively. The middle rubber volume expansion is jointed with the insulator cavity, the double-cone rubber sleeve is deformed under proper pressure from inside to outside, the stress is small, the aging speed of the double-cone rubber sleeve under the stress is slower than that of the double ends, and therefore long-term reliable sealing is achieved under the protection of sealing of the two ends.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

fig. 1 is a schematic structural diagram of a core wire sealing structure of the present invention;

fig. 2 is a schematic structural view of the middle rubber sleeve of the present invention.

Reference numerals:

1 first insulator, 11 first taper hole, 2 second insulator, 21 second taper hole, 3 rubber sleeve, 30 horizontal through hole, 31R-shaped boss, 32 first taper surface, 33 second taper surface and 34 circular arc chamfer.

Detailed Description

As shown in fig. 1 and 2, a core wire sealing structure comprises a first insulator 1, a second insulator 2 and a rubber sleeve 3, wherein a horizontal through hole 30 for facilitating the penetration of a core wire is arranged on the rubber sleeve 3, a first taper hole 11 is arranged on the first insulator 1, a second taper hole 21 is arranged on the second insulator 2, one end of the rubber sleeve 3 is connected with the first taper hole 11, the other end of the rubber sleeve 3 is connected with the second taper hole 21, an R-shaped boss 31 extending inwards is arranged at the middle end of the horizontal through hole 30, when the core wire penetrates into the horizontal through hole 30, one end of the rubber sleeve 3 is attached to the first taper hole 11 to form a first seal, the other end of the rubber sleeve 3 is attached to the second taper hole 21 to form a second seal, the middle part of the rubber sleeve 3 is expanded by the pressure at the two ends to enable the first insulator 1 and the second insulator 2 to be attached to form a cavity for wrapping the rubber sleeve 3 comprehensively, and the R-shaped boss 31 is attached to the core wire surface insulating layer.

The rubber sleeve 3 is installed between the first insulator 1 and the second insulator 2, the rubber sleeve 3 is compressed through the first taper hole 11 on the first insulator 1 and the second taper hole 21 on the second insulator 2, the rubber sleeve 3 is stressed to be respectively attached to the first taper hole 11 and the second taper hole 21, one end of the rubber sleeve 3 is attached to the first taper hole 11 to form a first seal, the other end of the rubber sleeve 3 is attached to the second taper hole 21 to form a second seal, and secondly, the middle of the rubber sleeve 3 expands due to the pressure at the two ends of the rubber sleeve 3, so that a cavity which completely wraps the rubber sleeve 3 is formed between the first insulator 1 and the second insulator 2, the cavity is used for carrying out third seal on a core wire, the seals at the two ends of the structure are conical surfaces, the stress is large, and the seal service life is relatively shortened in consideration of accelerated aging of high temperature and compressive stress. The volume expansion of the middle rubber is jointed with the cavity of the insulator, the double-cone rubber sleeve 3 deforms under proper pressure from inside to outside, the stress is small, the aging speed of the double-cone rubber sleeve under the stress is slower than that of the two ends, and therefore long-term reliable sealing is achieved under the protection of sealing of the two ends.

R type boss 31 includes at least two sections, just the even setting of R type boss 31 is in on horizontal through-hole 30's the inside wall, can carry out the multistage laminating to heart yearn surface insulation layer, R type boss 31 and horizontal through-hole 30 integrated into one piece can improve holistic intensity, optimize the mounting process of R type boss 31, reduce R type boss 31 and horizontal through-hole 30's relative slip, improve R type boss 31 and heart yearn surface insulation layer's laminating quality.

One end of the rubber sleeve 3 is provided with a first conical surface 32 matched with the first conical hole 11, the other end of the rubber sleeve 3 is provided with a second conical surface 33 matched with the second conical hole 21, the laminating quality of the rubber sleeve 3, the first conical hole 11 and the second conical hole 21 can be improved, the sealing effect is improved, the tapers of the first conical surface 32 and the second conical surface 33 on the rubber sleeve 3 are equal, the two ends of the rubber sleeve 3 are ensured to bear the same extrusion force, the stability of the rubber sleeve 3 is ensured, the whole quick installation is facilitated, chamfers are arranged on the first conical surface 32 and the second conical surface 33, the arrangement of the chamfers can play a role in lifting positioning and guiding in the installation process of the rubber sleeve 3, the whole installation efficiency is improved, an arc chamfer 34 is arranged between the first conical surface 32 and the second conical surface 33, the arrangement of the arc chamfer 34 can reduce the stress concentration of the rubber sleeve 3, the integral strength is improved, and the rubber sleeve 3 is conveniently formed integrally.

In addition to the preferred embodiments described above, other embodiments of the present invention are also possible, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, which should fall within the scope of the present invention defined by the appended claims.

Claims

1. A core wire sealing structure comprises a first insulator and a second insulator, and is characterized in that: still include the rubber sleeve, be equipped with the horizontal through-hole that the heart yearn of being convenient for penetrated on the rubber sleeve, be equipped with first bell mouth on the first insulator, be equipped with second taper hole on the second insulator, the one end and the first bell mouth of rubber sleeve are connected, the other end and the second taper hole of rubber sleeve are connected, the middle-end of horizontal through-hole is equipped with the R type boss of inside extension, and when the heart yearn penetrated horizontal through-hole, the one end and the first bell mouth laminating formation first of rubber sleeve were sealed, and the other end and the laminating of second taper hole of rubber sleeve form the second sealed, and the rubber sleeve middle part receives the pressure at both ends and the inflation makes first insulator and the laminating of second insulator form the cavity of a comprehensive parcel rubber sleeve to make R type boss laminating heart yearn surface insulation layer.

2. A core wire sealing structure according to claim 1, wherein: the R-shaped boss comprises at least two sections, and the R-shaped boss is uniformly arranged on the inner side wall of the horizontal through hole.

3. A core wire sealing structure according to claim 2, wherein: the R-shaped boss and the horizontal through hole are integrally formed.

4. A core wire sealing structure according to claim 1, wherein: one end of the rubber sleeve is provided with a first conical surface matched with the first conical hole, and the other end of the rubber sleeve is provided with a second conical surface matched with the second conical hole.

5. A wick sealing structure according to claim 4, wherein: the first conical surface and the second conical surface have equal taper on the rubber sleeve.

6. A core wire sealing arrangement according to claim 4 or 5, wherein: and chamfers are arranged on the first conical surface and the second conical surface.

7. A wick sealing structure according to claim 6, wherein: and an arc chamfer is arranged between the first conical surface and the second conical surface.