CN211957945U

CN211957945U - Cable flexible joint

Info

Publication number: CN211957945U
Application number: CN202020857357.2U
Authority: CN
Inventors: 侯少斌; 万青山
Original assignee: Jiangxi Nanyuan Cable Co ltd
Current assignee: Jiangxi Nanyuan Cable Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2020-11-17
Anticipated expiration: 2030-05-21

Abstract

The utility model relates to the technical field of cables, especially relate to a cable flexible joint, including two cable conductor with the specification to and be used for connecting two cable conductor's a welding, the diameter of a welding is unanimous with two cable conductor's diameter, the both ends of a welding respectively with two cable conductor welding, a welding forms welding area with two cable conductor welding departments, the cable conductor outside parcel has first protective sheath, the outside parcel of weld area has the second protective sheath, is equipped with protector between first protective sheath and the second protective sheath. The utility model discloses in, through be equipped with protector between first protective sheath and second protective sheath, can strengthen the intensity of cable flexible joint department, prolonged the life of cable flexible joint to protector can effectually block external impurity and destroy cable flexible joint department.

Description

Cable flexible joint

Technical Field

The utility model relates to the technical field of cables, especially, relate to a flexible cable joint.

Background

A cable is a power or signal transmission device, and is generally composed of several wires or groups of wires. The cable connector is also called a cable head. After the cable is laid, the sections of the cable must be connected together in order to form a continuous line, and these connections are called cable connectors. The cable joints at the middle of the cable run are called intermediate joints and the cable joints at the two ends of the run are called termination joints. The cable joint is used for locking and fixing the incoming and outgoing lines, and plays a role in water resistance, dust prevention and vibration prevention.

In some cases, for example, in the power supply engineering of a long submarine cable, the length of a single cable is less than the total length of the required cable, so that a plurality of cables need to be connected through a flexible cable joint, but the strength of the flexible cable joint is far less than that of other places of the cable, and the flexible cable joint is susceptible to external impurities.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: a cable splice is provided.

The utility model adopts the technical scheme as follows:

the utility model provides a cable flexible joint, includes two cable conductor with the specification to and be used for connecting two cable conductor's welding, the diameter of welding with two cable conductor's diameter is unanimous, the both ends of welding respectively with two cable conductor welding, welding with two cable conductor welding department forms welding area, the parcel of the cable conductor outside has first protective sheath, the parcel of welding area outside has the second protective sheath, first protective sheath with be equipped with protector between the second protective sheath.

Preferably, protector includes the elasticity piece, be equipped with a plurality of sealing washers in the elasticity piece, and the sealing washer is located respectively first protection cover with on the second protection cover, the elasticity piece is the ring shape of taking the breach, be equipped with the sealing strip on the mid portion of elasticity piece breach, the both ends of elasticity piece breach all are equipped with locking device.

Preferably, locking device includes fixed connection and is in the arc of elasticity piece breach department, be equipped with the arc passageway that is used for holding the arc on the other end of elasticity piece, the arc with be equipped with between the arc passageway and be used for with the fixing device in the arc passageway is fixed to the arc, the arc inserts to direction in the arc passageway is the direction of motion of arc.

Preferably, the fixing device comprises a first rack arranged on the arc-shaped plate, teeth on the first rack are arranged in an inclined manner along the direction opposite to the moving direction of the arc-shaped plate, a connecting plate is arranged in the arc-shaped channel, a second rack is arranged on the connecting plate, teeth on the second rack are arranged in an inclined manner along the moving direction of the arc-shaped plate, the first rack is matched with the second rack, and an elastic part is arranged between the connecting plate and the arc-shaped channel.

Preferably, a fixed block is arranged in the arc-shaped channel, the fixed block abuts against the connecting plate, and the fixed block is located on one side close to the port of the arc-shaped channel.

Preferably, the elastic member is a spring.

Preferably, the first protective sleeve sequentially comprises a first inner shielding layer, a first insulating layer, a first outer shielding layer, a first water-resistant layer and a first metal sheath from inside to outside, and the second protective sleeve sequentially comprises a second inner shielding layer, a second insulating layer, a second outer shielding layer, a second water-resistant layer and a second metal sheath from inside to outside.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the utility model discloses in, through be equipped with protector between first protective sheath and second protective sheath, can strengthen the intensity of cable flexible joint department, prolonged the life of cable flexible joint to protector can effectually block external impurity and destroy cable flexible joint department.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, 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 invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

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

FIG. 2 is a schematic view of the protective device of the present invention;

fig. 3 is a cross-sectional view taken along line a-a of fig. 1 in accordance with the present invention;

fig. 4 is an enlarged view of the portion B of fig. 3 according to the present invention.

The labels in the figure are: 1-cable conductor; 2-welding parts; 3-a guard device; 4-a fastener; 5-sealing ring; 6-sealing strips; 7-arc-shaped plates; 8-an arc-shaped channel; 9-a first rack; 10-a connecting plate; 11-a second rack; 12-a spring; 13-fixing block; 14-a first inner shield layer; 15-a first insulating layer; 16-a first outer shield layer; 17-a first water resistant layer; 18-a first metal sheath; 19-a second inner shield layer; 20-a second insulating layer; 21-a second outer shield layer; 22-a second water resistant layer; 23-second metal sheath.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

As shown in fig. 1 to 4, a cable flexible joint includes two cable wires 1 of the same specification, and a welding part 2 for connecting the two cable wires, a diameter of the welding part 2 is consistent with diameters of the two cable wires 1, two ends of the welding part 2 are respectively welded to the two cable wires 1, a welding area is formed at a welding position of the welding part 2 and the two cable wires 1, and a first protective sleeve is wrapped on an outer side of the cable wires 1, and in this embodiment, the first protective sleeve includes, in order from inside to outside, a first inner shielding layer 14, a first insulating layer 15, a first outer shielding layer 16, a first water blocking layer 17, and a first metal sheath 18. The outer side of the welding area is wrapped with a second protective sleeve, and the second protective sleeve sequentially comprises a second inner shielding layer 19, a second insulating layer 20, a second outer shielding layer 21, a second water-resistant layer 22 and a second metal sheath 23 from inside to outside.

In this embodiment, the protection device 3 is disposed between the first protection sleeve and the second protection sleeve, and two joints are disposed between the first protection sleeve and the second protection sleeve, so that two protection devices 3 are disposed. Protector 3 includes elasticity piece 4, is equipped with a plurality of sealing washers 5 in the elasticity piece 4, and sealing washer 5 is located respectively on first protective sheath and the second protective sheath, in this embodiment, adopts two sealing washers 5 altogether, wherein, respectively is equipped with a sealing washer 5 on first protective sheath and the second protective sheath. The elastic piece 4 is a ring with a notch, the middle part of the notch of the elastic piece 4 is provided with a sealing strip 6, and two ends of the notch of the elastic piece 4 are both provided with locking devices.

In this embodiment, locking device includes arc 7 of fixed connection at 4 breach departments of elasticity piece, is equipped with the arc passageway 8 that is used for holding arc 7 on the other end of elasticity piece 4, is equipped with between arc 7 and the arc passageway 8 to be used for fixing the fixing device in arc passageway 8 with arc 7, and the direction that arc 7 inserted in arc passageway 8 is the direction of motion of arc 7.

In this embodiment, the fixing device includes a first rack 9 disposed on the arc 7, teeth on the first rack 9 are disposed along a direction opposite to a moving direction of the arc 7, a connecting plate 10 is disposed in the arc channel 8, a second rack 11 is disposed on the connecting plate 10, teeth on the second rack 11 are disposed along the moving direction of the arc 7, the first rack 9 and the second rack 11 are matched, an elastic member is disposed between the connecting plate 10 and the arc channel 8, and in this embodiment, the elastic member is a spring 12.

In this embodiment, a fixing block 13 is disposed in the arc-shaped channel, the fixing block 13 abuts against the connecting plate 10, and the fixing block 13 is located at a side close to the port of the arc-shaped channel 8.

The working principle is as follows: firstly, cutting off a first protective sleeve at the end heads of two cables to expose a cable conductor 1, then welding the two cable conductors 1 with a welding part 2, then wrapping a second protective sleeve in a welding area, then respectively sleeving two sealing rings 5 on the corresponding positions of the first protective sleeve and the second protective sleeve, then sleeving a tightening part 4 on the corresponding position, and then fixing the tightening part 4 through a locking device. Through arc 7 insert to arc 8 in the passageway, in the insertion process, as shown in fig. 4, first rack 9 oppresses second rack 11, makes second rack 11 oppress spring 12 through connecting plate 10 and move down, makes arc 7 move toward arc 8 in to make whole elasticity piece 4 shrink until elasticity piece 4 fixes on the cable. When the driving arc plate 7 moves towards the outside of the arc channel 8, the first rack 9 and the second rack 11 are locked with each other, so that the arc plate 7 cannot move towards the outside of the arc channel 8, the connecting plate 10 abuts against the fixed block 13, and the connecting plate 10 and the spring 12 can be prevented from being damaged due to excessive force. When the elastic piece 4 is fixed on the cable, the sealing strip 6 is tightly attached to the other port of the elastic piece 4, at the moment, a closed space is formed among the cable, the sealing ring 5, the elastic piece 4 and the sealing strip 6, and the welding area is located in the closed space, so that external impurities, liquid and the like can be prevented from entering the welding area and damaging the welding area. And the protection device can also strengthen the strength of the cable flexible joint, and prolong the service life of the cable flexible joint.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a cable flexible joint, its characterized in that includes two cable conductor with the specification, and is used for connecting the welding of two cable conductor, the diameter of welding with the diameter of two cable conductor is unanimous, the both ends of welding respectively with two cable conductor welding, the welding with two cable conductor welding department form the welding zone, the parcel of the cable conductor outside has first protective sheath, the parcel of welding zone outside has the second protective sheath, first protective sheath with be equipped with protector between the second protective sheath.

2. The flexible cable joint as claimed in claim 1, wherein the protection device comprises a flexible cable connector, the flexible cable connector has a plurality of sealing rings disposed therein, the sealing rings are disposed on the first protective sheath and the second protective sheath, the flexible cable connector has a ring shape with a notch, the sealing strip is disposed on a middle portion of the notch of the flexible cable connector, and the locking devices are disposed on two ends of the notch of the flexible cable connector.

3. The flexible cable joint as claimed in claim 2, wherein the locking device comprises an arc plate fixedly connected to the opening of the fastening member, an arc channel for receiving the arc plate is provided at the other end of the fastening member, a fixing device for fixing the arc plate in the arc channel is provided between the arc plate and the arc channel, and the direction of insertion of the arc plate into the arc channel is the moving direction of the arc plate.

4. The flexible cable joint according to claim 3, wherein the fixing device comprises a first rack disposed on the arc-shaped plate, teeth of the first rack are disposed in an inclined manner along a direction opposite to a moving direction of the arc-shaped plate, a connecting plate is disposed in the arc-shaped channel, a second rack is disposed on the connecting plate, teeth of the second rack are disposed in an inclined manner along the moving direction of the arc-shaped plate, the first rack is engaged with the second rack, and an elastic member is disposed between the connecting plate and the arc-shaped channel.

5. The flexible cable connector according to claim 4, wherein a fixing block is disposed in the arc-shaped channel, the fixing block abuts against the connecting plate, and the fixing block is located at a side close to the port of the arc-shaped channel.

6. A flexible cable splice according to claim 4, in which the resilient member is a spring.

7. The flexible cable joint according to claim 1, wherein the first protective sheath comprises a first inner shielding layer, a first insulating layer, a first outer shielding layer, a first water-resistant layer and a first metal sheath from inside to outside in sequence, and the second protective sheath comprises a second inner shielding layer, a second insulating layer, a second outer shielding layer, a second water-resistant layer and a second metal sheath from inside to outside in sequence.