CN213839520U

CN213839520U - Plug for cable through hole

Info

Publication number: CN213839520U
Application number: CN202022965511.0U
Authority: CN
Inventors: 余志明; 许小妹; 黄颖; 张勇; 袁平湘; 林振华; 江鹏; 伍玉铃; 邹俊磊; 屈华山
Original assignee: Jiangxi Hongdu Aviation Industry Group Co Ltd
Current assignee: Jiangxi Hongdu Aviation Industry Group Co Ltd
Priority date: 2020-12-12
Filing date: 2020-12-12
Publication date: 2021-07-30
Anticipated expiration: 2030-12-12

Abstract

The embodiment of the application provides a plug for a cable through hole, which comprises a plug body, a sealing rubber ring and a nut, wherein the plug body comprises a plug cap and an ejector rod connected with one end of the plug cap, and one surface, connected with the ejector rod, of the plug cap is inwards sunken to form a circle of clamping grooves; the sealing rubber ring is sleeved on the periphery of the ejector rod and can be embedded into the clamping groove, a smooth part slightly larger than the thickness of the frame plate of the airtight end frame is reserved at one end, away from the blocking cap, of the periphery of the ejector rod, and threads matched with the nut in a screwing mode are tapped on the rest part of the periphery of the ejector rod. The plug for the cable through hole, provided by the embodiment of the application, has a simple structure, can be detached, and can be used for plugging redundant cable through holes on the airtight end frame.

Description

Plug for cable through hole

Technical Field

The application belongs to the technical field of aircraft structural design, more specifically relates to a leave over cable through-hole shutoff on airtight end frame of aircraft cabin and use end cap device.

Background

A plurality of cable through holes for an avionic system are generally designed on an airtight end frame of an aircraft cabin section, the cables are connected inside and outside a cabin through needle holes in cabin penetrating airtight plugs, for example, GJB 599 series III threaded connection electric connector crimping type nut mounting sockets are arranged, meanwhile, the airtight plugs are used for plugging structural openings, and the air tightness of the cabin is guaranteed. According to the needs of different stages of flight tasks, the cable socket can be increased or reduced temporarily, the situation that cable through holes are reserved on the machine as redundant holes can occur at the moment, the cable through holes are all special-shaped holes, the hole diameter is large, and the holes cannot be sealed and plugged by common bolts and nuts.

At present, the method for plugging the cable through hole mainly comprises the following steps: the cable through holes in the legacy machines are plugged by the cabin-penetrating airtight socket special for avionics, but the pinhole part of the airtight socket is easy to cause pollution, the subsequent normal electrification use cannot be realized, and the situation of cable misconnection is easy to occur in the hole plugging mode, so that the equipment and flight safety are influenced; in another mode, a patch is added in the area of the redundant cable through hole, and the hole is plugged through air-tight riveting with the airtight end frame by using double rows of rivets, the hole plugging mode is greatly influenced by space and complicated in operation process, and the newly added patch is removed to plug the rivet hole when the cable through hole is needed to be used subsequently.

SUMMERY OF THE UTILITY MODEL

The object of the present application includes, for example, providing a plug for a cable through-hole to improve the above-mentioned problems.

The embodiment of the application can be realized as follows:

the application provides a plug for a cable through hole, which comprises a plug body, a sealing rubber ring and a nut, wherein the plug body comprises a plug cap and an ejector rod connected with one end of the plug cap, and one surface, connected with the ejector rod, of the plug cap is inwards sunken to form a circle of clamping grooves; the sealing rubber ring is sleeved on the periphery of the ejector rod and can be embedded into the clamping groove, a smooth part slightly larger than the thickness of the frame plate of the airtight end frame is reserved at one end, away from the blocking cap, of the periphery of the ejector rod, and threads matched with the nut in a screwing mode are tapped on the rest part of the periphery of the ejector rod.

Further, the sealing rubber ring is made of a compressible rubber material.

Further, the sealing rubber ring is matched with the clamping groove in size.

Further, the blanking cap is in an octagonal shape.

Furthermore, a sealing gasket is sleeved on the ejector rod and is positioned at the contact position of the airtight end frame and the nut.

Furthermore, the inner rings of the plug ejector rod and the sealing gasket are consistent with the shape of the cable through hole.

Further, the sealing gasket is made of compressible rubber material.

The plug for the cable through hole, provided by the embodiment of the application, is simple in structure and detachable, and can be used for plugging redundant cable through holes in the airtight end frame.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural diagram in a first embodiment of the present application.

Fig. 2 is a schematic structural view of a plugging cap in the first embodiment of the present application.

Fig. 3 is an assembly diagram in the first embodiment of the present application.

Icon: 1-blocking cap, 101-clamping groove, 102-ejector rod, 2-sealing rubber ring, 3-sealing gasket and 4-nut.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

It should be noted that the features of the embodiments of the present application may be combined with each other without conflict.

The following examples are provided to illustrate the present application.

The first embodiment is as follows:

as shown in fig. 1 and 2, the application provides a plug for a cable through hole, which comprises a plug body, a sealing rubber ring 2 and a nut 4, wherein the plug body is of a T-shaped solid structure, the plug cap 1 can be an octagonal plug cap 1, the plug cap is convenient to hold by a hand, the plug cap comprises a plug cap 1 and a push rod 102 connected with one end of the plug cap 1, the plug cap 1 and the push rod 102 can be integrally formed to form a whole plug body, one side, connected with the push rod 102, of the plug cap 1 is inwards recessed to form a circle of clamping groove 101, the sealing rubber ring 2 is matched with the clamping groove 101 in size and can be embedded into the clamping groove 101, meanwhile, the sealing rubber ring 2 penetrates through the periphery of the push rod 102, the sealing rubber ring 2 can be made of a compressible rubber material, the plugging effect of the plug cap is improved, a smooth part slightly larger than the thickness of a frame plate of an airtight end is reserved at one end, far away from the plug cap 1, of the periphery of the push rod 102, and threads matched with the nut 4 in a rotating manner, the nut 4 may alternatively be a hexagonal nut 4.

On this basis, in order to enhance the air tightness between the joint of the top rod 102 and the nut 4 when the nut 4 and the top rod 102 are screwed, a sealing gasket 3 may be sleeved on the top rod 102, the sealing gasket 3 is located at the contact of the airtight end frame and the nut 4, in order to further enhance the sealing performance, the sealing gasket 3 is made of a compressible rubber material, and the shapes of the plug top rod 102 and the inner ring of the sealing gasket 3 are consistent with the shape of the cable through hole, so that the sealing performance is good after the top rod 102 passes through the cable hole on the airtight end frame and is screwed into the nut 4.

As shown in fig. 3, when the plug blocks redundant cable holes in the airtight end frame of the aircraft cabin, the sealing rubber ring 2 is pressed into the clamping groove 101 of the plug, then the plug and the sealing rubber ring 2 penetrate through the frame to leave cable holes, the sealing gasket 3 with corresponding thickness is selected according to the thickness of the frame plate to ensure that plug threads do not enter the frame plate, the sealing gasket 3 and the nut 4 are sleeved on the plug from the other side of the frame plate, the nut 4 is screwed and fixed, the plug is close to the end part area of the nut 4 to perform sealing treatment, the thread connecting area and the extending part of the ejector rod 102 which are about to be the nut 4 are stained with paint and form a semicircular bulge, so that the air tightness is ensured, and the plug can be disassembled only.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. The plug for the cable through hole is characterized by comprising a plug body, a sealing rubber ring and a nut, wherein the plug body comprises a plug cap and an ejector rod connected with one end of the plug cap, and one surface, connected with the ejector rod, of the plug cap is inwards sunken to form a circle of clamping grooves; the sealing rubber ring is sleeved on the periphery of the ejector rod and can be embedded into the clamping groove, a smooth part slightly larger than the thickness of the frame plate of the airtight end frame is reserved at one end, away from the blocking cap, of the periphery of the ejector rod, and threads matched with the nut in a screwing mode are tapped on the rest part of the periphery of the ejector rod.

2. The plug according to claim 1, wherein the sealing rubber ring is a compressible rubber material.

3. The plug according to claim 1, wherein the sealing rubber ring is matched with the size of the clamping groove.

4. The plug according to claim 1, wherein said plug cap is octagonal.

5. The plug according to claim 1, wherein the top rod is further sleeved with a sealing gasket, and the sealing gasket is located at a contact position of the airtight end frame and the nut.

6. The plug according to claim 5, wherein the inner rings of the plug ejector rod and the sealing gasket are in accordance with the shape of the cable through hole.

7. The plug of claim 5, wherein the sealing gasket is a compressible rubber material.