CN217656110U

CN217656110U - Suspension system wire harness with high reliability

Info

Publication number: CN217656110U
Application number: CN202221628405.6U
Authority: CN
Inventors: 林殿夫; 孙海航; 李聪; 万初阳
Original assignee: AVIC Shenyang Xinghua Aero Electrical Appliance Co Ltd
Current assignee: AVIC Shenyang Xinghua Aero Electrical Appliance Co Ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-10-25
Anticipated expiration: 2032-06-28

Abstract

The utility model discloses a suspension pencil that reliability is high, its characterized in that: the anti-falling device comprises a connector, wherein a plurality of needle holes are formed in the connector, and an anti-falling mechanism is arranged at the upper part of the connector; a contact body and/or an insulator are arranged in the pinhole; the anti-falling mechanism comprises a fixed seat fixed on the upper part of the connector, and an elastic part connected with the back hook mechanism is arranged on the fixed seat. The utility model discloses the structure is through being filled with the insulator in the pinhole intussuseption to make whole pinhole reach and fill completely, effectually prevent vibration, the contact displacement that the impact caused, or the disorder that metal debris arouses, avoided bad or the short circuit of electrical contact to a certain extent, still guaranteed the stability of insertion force simultaneously. Hang the pencil through elastomeric element, greatly promoted suspension's stability, reduced the sudden impact of external force, prevent the atress of pencil body itself simultaneously to the reliability of pencil has been improved.

Description

Suspension system wire harness with high reliability

Technical Field

The utility model belongs to the technical field of the electric connector, concretely relates to suspension pencil that reliability is high for the electric signal connection between aircraft suspension and the throwing system.

Background

The plane is provided with a suspension system and a throwing system, the throwing system comprises a guided missile, an auxiliary fuel tank and the like, and the suspension system is used for fixing the throwing system and throwing or discarding the throwing system when needed. The suspension system wire harness is used for transmitting related signals, the reliability of the suspension system wire harness can be influenced in special environments such as electromagnetic shielding and corrosion where the suspension system wire harness is located, along with the improvement of the use requirement of an airplane, the suspension system faces more and more complex use environments, the reliability of the wire harness is very important, once the wire harness fails, the throwing system fails, a console cannot control and adjust a suspension object, a pilot loses control over the suspension object or feedback information of the console is wrong, the pilot cannot obtain correct information, and therefore major accidents are caused. In addition, the connection part of the suspension system and the throwing system wire harness needs to be separated during separation, and the connector of the suspension system needs to be effectively recovered.

With the increasing improvement of indexes such as performance, environment resistance, reliability and safety of airplanes and the wide application of airplane telex systems in China, the suspension system wire harness is developing towards high reliability, and the suspension system wire harness with high reliability is urgently needed to improve the performance of the suspension system wire harness.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a suspension pencil that reliability is high to solve the problem among the prior art.

The utility model discloses a realize through following technical scheme: a suspension system pencil that reliability is high, its characterized in that: the anti-falling device comprises a connector, wherein a plurality of needle holes are formed in the connector, and an anti-falling mechanism is arranged at the upper part of the connector; a contact body and/or an insulator are arranged in the pin hole; the anti-falling mechanism comprises a fixed seat fixed on the upper part of the connector, and an elastic part connected with the hook returning mechanism is arranged on the fixed seat.

And further: the elastic component is an elastic rope, the middle part of the elastic rope is wound on a pull rod of the hook returning mechanism, and two ends of the elastic rope are tied on fixing holes of the fixing seat.

Further: the elastic component comprises a fixed cylinder and a sliding column which are in sliding fit, the lower end of the fixed cylinder is fixed on the fixed seat, and the upper end of the sliding column is in sleeve fit with the pull rod of the hook returning mechanism; a compression spring is arranged between the fixed cylinder and the sliding column.

Further: the insulator is used to fill the pin hole or a portion of the pin hole without a contact.

Further: the pinhole comprises an upper cylindrical cavity and a lower cylindrical cavity, and a fixing groove is arranged in the larger cavity.

The beneficial effects of the utility model are that: the utility model discloses the structure is through being filled with the insulator in the pinhole intussuseption to make whole pinhole reach and filled entirely, the effectual vibration that prevents, the contact displacement that the impact caused, or the disorder that metal debris arouses, avoided the bad or short circuit of electric contact to a certain extent, still guaranteed the stability of grafting power simultaneously.

The wire harness is suspended through the elastic component, so that the stability of a suspension system is greatly improved, the sudden impact of external force is reduced, and meanwhile, the stress of the wire harness body is prevented, and the reliability of the wire harness is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is another schematic structural view of the present invention;

FIG. 3 is a schematic view of an insulator half-filled state configuration;

FIG. 4 is a schematic view of an insulator fully filled configuration;

fig. 5 is a schematic view of the plunger type anti-falling mechanism.

The sequence numbers in the figures illustrate: the device comprises a connector 1, a pin hole 2, an anti-falling mechanism 3, a contact body 4, an insulator 5, a fixed seat 6, a hook returning mechanism 7, an elastic component 8, a fixed cylinder 9, a sliding column 10 and a spring 11.

Detailed Description

As shown in fig. 1-5, the suspension system wire harness with high reliability comprises a connector 1, a plurality of needle holes 2 (only one is shown in fig. 3-4 for convenience of description) are arranged inside the connector, and an anti-drop mechanism 3 is arranged on the upper portion of the connector and is used for hanging the connector and ensuring stable recovery of the connector during separation; a contact 4 and/or an insulator 5 are/is arranged in the pin hole, as shown in fig. 4, wherein the contact or the insulator (which are the same in shape and are arranged as required) is/are arranged in the pin hole; in this scheme, be full filling state in the pinhole, in the current structure, the point location installation contact as required in the pinhole, all the other pinholes are the cavity state, and the contact divide into two kinds of full length and half length, and half length has certain vacant space in the tail end vacancy. In this scheme, in order to prevent that impurity and electric conductor from getting into the pinhole, in the pinhole vacant position of not installing the contact and installing half-length contact, be provided with the insulator and fill the occupy-place, effectively prevented the entering of impurity, reduced the damage that receives the vibrations impact and the risk that conductive impurities got into and lead to the short circuit, guaranteed the size of grafting power between the connector simultaneously, can effectively prevent that the accident from droing. The anti-disengaging mechanism plays a role in hanging the connector, can buffer impact on the connector and effectively recover the connector when the throwing system falls off, and comprises a fixed seat 6 fixed on the upper portion of the connector, and an elastic part 8 connected with a back-hooking mechanism 7 is arranged on the fixed seat.

Preferably: the elastic component is an elastic rope with certain elasticity, such as a rubber rope, the middle part of the elastic rope is wound on the pull rod of the hook returning mechanism, and the two ends of the elastic rope are tied on the fixing holes of the fixing seat. In the initial state, the elastic rope is stable after the connector is hung, the connector is pulled down suddenly when the elastic rope is thrown, at the moment, the elastic rope is stretched, a pull-back force is applied under the action of the elastic force, the force is increased gradually until the lower part of the connector is disconnected, and the connector is pulled back. The force for pulling back the connector is linear and stable, the impact force is small, and the device is safe and reliable.

Preferably: the elastic part can also be a plunger type structure, the structure comprises a fixed cylinder 9 and a sliding column 10 which are in sliding connection and matching, the lower end of the fixed cylinder is fixed on the fixed seat, the upper end of the sliding column is in sleeve matching with a pull rod of the hook returning mechanism, namely, the upper part of the sliding column is provided with a through hole, the pull rod is inserted in the through hole, and the two ends of the pull rod are connected with fixed parts such as a machine body through cables or hanging pieces; a compression spring 11 is provided between the fixed cylinder and the sliding column. The spring sleeve is arranged outside the sliding column, the lower end of the spring sleeve is matched with the lower end of the sliding column, the upper part of the spring sleeve is matched with the inner side of the upper cover of the fixed cylinder, and the specific matching can be welding or structure limiting matching such as a limiting boss of a matching part. The sliding column is matched with the fixed cylinder through the elasticity of the spring, and the spring enables the sliding column to generate contraction force.

Preferably: when no contact is in the pin hole, the insulator is used to fill the entire pin hole; when the contact in the pin hole cannot fill the pin hole, i.e., a void is left in the lower portion, the insulator is used to fill the portion of the pin hole that is left empty. The shape of the insulator is a profile, which is consistent with the residual space in the contact body or the pinhole, and can ensure smooth installation.

Preferably: the pinhole comprises an upper cylindrical cavity and a lower cylindrical cavity, and circular arc-shaped transition can be arranged in the two cavities, so that the pinholes form a structure similar to a wine bottle. And a fixing groove is circumferentially arranged in the larger cavity and used for clamping a contact body or an insulator. The contact body or the insulator is softer than the cavity and can be directly inserted and fixed by applying certain force.

Preferably: the base and the connection mode of the base and the connector are of the existing structure, for example, the base can be fixedly connected with the connector in a bolt connection or clamping connection or integrated forming mode, and the normal arrangement of cables is guaranteed. The base is usually located centrally in the upper part of the housing, and the conductors of the connector enter the connector from both sides of the base and are plugged (or soldered) onto the contacts. The position of the base does not affect the arrangement of the leads.

The working process of the scheme is as follows:

when the throwing object is in a hanging state in a normal state, the connector achieves the hanging effect through the elastic part of the anti-falling mechanism, when external force is applied, the elastic part deforms, impact force is relieved, and the connector can be prevented from falling off accidentally. When the throwing toy is thrown, the connecting part and the connector on the throwing object are separated under the action of the gravity of the throwing object, the connector is stressed to drive the elastic part to stretch, the stretching of the elastic part can buffer the stretching force, and when the stretching force reaches the separating force, the connector is separated and gradually withdrawn under the elastic action of the elastic part until the stable state is reached. In the whole separation process, the large impact force is avoided, and the stress is always in the elastic action range of the elastic component. Simultaneously, this power is acted on the connector through elastomeric element, has avoided the pencil to receive and has dragged to effectual improvement pencil transmission's reliability and the recyclability of pencil have increased its number of times of recycling.

Claims

1. A suspension system pencil that reliability is high, its characterized in that: the anti-falling device comprises a connector, wherein a plurality of needle holes are formed in the connector, and an anti-falling mechanism is arranged at the upper part of the connector;

a contact body and/or an insulator are arranged in the pin hole;

the anti-falling mechanism comprises a fixed seat fixed on the upper part of the connector, and an elastic part connected with the hook returning mechanism is arranged on the fixed seat.

2. A highly reliable suspension system wire harness as claimed in claim 1, wherein: the elastic component is an elastic rope, the middle part of the elastic rope is wound on the pull rod of the hook returning mechanism, and the two ends of the elastic rope are tied on the fixing holes of the fixing seat.

3. A highly reliable suspension system wire harness as claimed in claim 1, wherein: the elastic component comprises a fixed cylinder and a sliding column which are in sliding fit, the lower end of the fixed cylinder is fixed on the fixed seat, and the upper end of the sliding column is in sleeve fit with the pull rod of the hook returning mechanism; a compression spring is arranged between the fixed cylinder and the sliding column.

4. The suspension system wire harness with high reliability as claimed in claim 1, wherein: the insulator is used to fill the pin hole or a portion of the pin hole without a contact.

5. A highly reliable suspension system wire harness as claimed in claim 1, wherein: the pinhole comprises an upper cylindrical cavity and a lower cylindrical cavity, and a fixing groove is arranged in the larger cavity.