CN220022296U - Cold shrink sealing piece and cable joint thereof - Google Patents

Abstract

The utility model discloses a cold shrink sealing piece and a cable joint thereof, which are both used for wrapping a cable joint and comprise a cold shrink tube made of an elastic material, and a support piece sleeved in the cold shrink tube and used for expanding the cold shrink tube, wherein the support piece can be removed from the cold shrink tube, and the support piece is provided with a long cylindrical support piece main body and a tearing structure which is arranged on the support piece main body and spirally arranged along the circumference of the support piece main body, and the tearing structure is arranged from one end of the support piece and spirally extends along the circumference of the support piece main body to the other end of the support piece.

Description

Cold shrink sealing piece and cable joint thereof

Technical Field

The present utility model relates to a seal, and more particularly, to a cold shrink seal for communication cables, power cables, etc., and a cable joint thereof.

Background

In technical fields such as electric power, communication, need use various power cable, communication cable to transmit electric energy, signal, communication equipment, power equipment are connected with the cable through cable connector, need seal protection when connecting to waterproof, dampproofing, dustproof, prevent damaging. In the prior art, cold shrink sleeves are mainly used for sealing.

The cold shrink tube is made of elastic material and is provided with a spiral tube core part support inside, so that the diameter of the cold shrink tube is enlarged. When the cable is used, the cold shrink sleeve is sleeved at the tail end of the power cable or the communication cable or the connection part or other parts of the cable and the cable connector, the spiral tube core part is pulled out, the elastic cold shrink sleeve is natural rebound, and the elastic cold shrink sleeve is tightly attached to other parts such as the cable and the cable connector, so that sealing is realized, water, dust and the like cannot enter the connection part to enter the cable and the cable connector, and cannot enter the communication equipment and the power equipment through the sealing part. Such shrinkage pipe can only disposable, can not used repeatedly, and when junction needs to dismantle, can only compress tightly the shrinkage pipe of laminating above that through destroying and just can realize dismantling, and the dismouting is inconvenient, brings inconvenience for overhaul, the maintenance of equipment and, along with the rapid development of technique, equipment integration level constantly improves, and the shape of all kinds of cable connectors is more and more irregular and shrinkage pipe among the prior art is only one section elasticity pipe, is being poor to irregularly shaped cable connector sealed effect.

Disclosure of Invention

The present utility model aims to overcome the above-mentioned drawbacks of the prior art and provide a cold shrink seal for communication cables, power cables, connectors and the like and a cable connector thereof.

In order to achieve the above object, one of the cold shrink sealing members of the present utility model is used for covering a cable junction, and comprises a cold shrink tube made of an elastic material, and a support member sleeved in the cold shrink tube for expanding the cold shrink tube, wherein the support member is removable from the cold shrink tube, and the support member has a long tubular support member main body and a tearable structure disposed on the support member main body and spirally disposed along a circumference of the support member main body, and the tearable structure is disposed from one end of the support member and spirally extends along the circumference of the support member main body to the other end of the support member.

In an embodiment, the tear-off structure further includes a tear-off strip and a plurality of equally spaced propping members integrally formed on the tear-off strip.

In particular embodiments, the tear-off feature further comprises a tear-off line disposed on the tear-off strip and the support body.

In a specific embodiment, the easy-to-tear line is any one of a short-line-shaped dotted line structure perpendicular to and penetrating the support body, an inverted Y-shaped or a herringbone structure.

In a specific embodiment, the end of the easy-to-tear line does not penetrate out of the end of the support body, and the easy-to-tear line is disposed on any one side or two sides of the joint between the easy-to-tear strip and the support body.

In a specific embodiment, one end of the supporting piece extends out of the cold shrink tube, and the other end of the supporting piece does not extend out of the cold shrink tube; or both ends of the supporting member protrude out of the cold shrink tube.

In an embodiment, each of the propping members further includes a propping block propped against the cable and a connecting block connected between the easy-to-tear strip and the propping block; or each propping piece is only a propping block which is integrally formed with the easy-tearing strip.

In a specific embodiment, when the cold shrink sealing member is wrapped at the connection part of the cables and the supporting member is not removed, the propping block is propped against the cables and a removing space is formed between the supporting member main body and the circumference of the cables.

In a specific embodiment, the supporting block is provided with a supporting surface and at least one movable surface which is arranged along the tearing direction and is arranged at an obtuse angle with the supporting surface, and when the support member main body is not removed by tearing the easy-tearing strip, a displacement space for realizing displacement of the supporting block is formed between the movable surface and the cable which is coated with the movable surface.

In a specific embodiment, a plurality of protrusions are arranged on the top holding surface and/or the movable surface of the top holding block; or a plurality of grooves which are arranged in parallel are arranged on the top surface and/or the movable surface of the top block.

The second cable connector comprises a connector body, a connecting sleeve and a fastener, wherein the cold shrink sealing piece provided by the first utility model is adopted, one end of the connecting sleeve is connected with the connector body, and the other end of the connecting sleeve is sleeved at one end part of a cold shrink tube of the cold shrink sealing piece; one end of the supporting piece is propped against the end part of the connecting sleeve, and the other end of the supporting piece extends out of the other end part of the cold shrink tube.

In a specific embodiment, at least one barb portion is provided on the outer circumference of the tube body of the connecting sleeve.

In a specific embodiment, the outer circumferential ring of the pipe body of the connecting sleeve is provided with at least two equally spaced barb portions in a stacked manner along the axial extending direction of the pipe body.

In an embodiment, the joint further comprises a detachable cover that covers the portion of the support member extending beyond the end of the cold shrink tube.

In a specific embodiment, the joint body and the connecting sleeve are of an integrally formed structure.

In summary, compared with the whole extraction mode, the cold shrink sealing piece and the cable joint thereof provided by the utility model are more effective and quicker, and the situation that the cold shrink tube is forced to be damaged due to overlarge force application in the process of removing the supporting piece is avoided.

Drawings

FIG. 1 is a schematic perspective view of one embodiment of a cold shrink seal of the present utility model.

FIG. 2 is a schematic perspective view of a cold-shrink seal support according to one embodiment of the present utility model.

FIG. 3 is a schematic perspective view of another embodiment of a cold-shrink seal of one of the present utility model.

Fig. 4 is an enlarged partial schematic view at a in a perspective view of one embodiment of a cold-shrink seal of one of the present utility models shown in fig. 1.

FIG. 5 is a schematic illustration of the frangible line of a dashed short-line configuration of a cold-shrink seal according to one of the present utility model.

Fig. 6 is a schematic perspective view of a cable connector according to a second embodiment of the present utility model.

Fig. 7 is another perspective view of a cable connector according to the second embodiment of the present utility model.

Fig. 8 is an exploded view of a cable connector according to the second embodiment of the present utility model.

Detailed Description

In order to describe the technical content, constructional features, achieved objects and effects of the present utility model in detail, examples are described below in detail with reference to the accompanying drawings.

Unless defined otherwise, all technical and scientific terms used in the embodiments of the utility model have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the present utility model is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

It should be noted that, the terms "upper", "lower", "left", "right", and the like in the embodiments of the present utility model are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present utility model. In this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on the other element or be indirectly on the other element through intervening elements.

Referring to fig. 1 to 5, a cold shrink seal 100 according to the present utility model is used for covering a connection portion of a cable (not shown), and includes a cold shrink tube 2 made of an elastic material, a support member 1 sleeved in the cold shrink tube 2 for expanding the cold shrink tube 2, wherein the support member 2 is removable from the cold shrink tube 2, and when the support member 1 is removed from the cold shrink tube 2, the cold shrink tube 2 is resiliently pressed tightly against the connection portion of the cable (not shown), so as to seal the connection portion of the cable and the cable. The support 1 is provided with a support body 11 in a long cylindrical shape and a tearing structure 12 which is arranged on the support body 11 and spirally extends along the circumference of the support body 11, wherein the tearing structure 12 is arranged at one end of the support 1 and spirally extends along the circumference of the support body 11 to the other end of the support 1. The tear-off feature 12 further includes a tear-off strip 121 and a plurality of equally spaced apart propping elements 122 integrally formed with the tear-off strip 121.

Referring to fig. 5, in one embodiment, the tear-off structure 12 further includes a tear-off line (not shown) of a short-line-shaped dashed structure disposed on the tear-off strip 121 and the support body, and the tear-off line is a short-line-shaped dashed structure perpendicular to the support body 11 and penetrating the support body 11. Further, the ends of the tear-off line do not pass out of the ends of the support body 11. The tear-off line is provided on either or both sides of the point where the tear-off strip 121 joins the support body 11. The easy tear line structure has improved on the one hand the tearing ease of support piece 1, on the other hand has this easy tear line structure support piece 1 production in can not produce the piece, solves in the production of current V type mouth easy tear structure, because of the chaotic and difficult clearance problem of piece of operational environment that the piece produced and caused.

In other possible embodiments, the tear line is inverted "Y" shaped or "chevron" shaped (not shown).

Referring to fig. 1 and 3, one end of the support member 1 extends out of the cold shrink tube 2, and the other end does not extend out of the cold shrink tube 2; or both ends of the support member 1 protrude out of the cold shrink tube 2.

According to the cold shrink seal 100 of the present utility model, the easy-tearing structure 12 is provided, so that the support member 1 can be gradually removed from the cold shrink tube 2, so that the situation that the support member 1 is too tightly attached to the cable and cannot be normally removed from the cold shrink tube 2 due to too large shrinkage of the cold shrink tube 2, and meanwhile, the situation that the support member 1 is an integral structural member and is difficult to be pulled out or the damage to the cold shrink tube 2 due to too large force application can be effectively avoided.

In one embodiment, as shown in fig. 4, each of the propping members 122 further comprises a propping block 123 propped against the cable and a connecting block (not shown) connected between the tear-off strip and the propping block.

In another alternative embodiment, each of the plurality of holding members 122 is simply a holding block 123 integrally formed with the tear-off strip 121.

When the cold shrink seal 100 of the present utility model is wrapped around the cable-to-cable connection and the support member 1 is not removed, the propping block 1221 is propped against the cable and a removing space (not shown) is formed between the support member body 11 and the circumference of the cable, which effectively enables the support member body 11 to be removed from the inside of the cold shrink tube 2.

The propping block 123 is provided with a propping surface 121231 and at least one movable surface 1232 arranged along the tearing direction and arranged at an obtuse angle with the propping surface 1231, when the support body 11 is not removed by tearing the easy-tearing strip 121, a displacement space (not shown in the figure) for realizing displacement of the propping block is formed between the movable surface 1232 and the cable to be coated, so that when the support 1 is removed by tearing, the easy-tearing strip 121 and the support body 11 are effectively removed. In one possible embodiment, the opposite ends of the supporting surface 1231 are provided with movable surfaces 1232.

In one embodiment, a plurality of protrusions (not shown) are disposed on the top surface 1231 and/or the movable surface 1232 of the top block 123.

In another alternative embodiment, a plurality of grooves (not shown) are disposed in parallel on the supporting surface 1231 and/or the movable surface 1232 of the supporting block 123.

The structure of the cold shrink seal 100 according to the present utility model, in which the supporting surface 1231 and/or the movable surface 1232 of the supporting block 123 are provided with a plurality of protrusions or a plurality of grooves, can effectively avoid the situation that the supporting block 123 is in close contact with the cable during installation, resulting in the fact that the cable connection or the connector is not normally and effectively removed from the cold shrink tube 2 after the cable connection or the connector is installed, or the cold shrink tube 2 is damaged due to excessive force applied during the removal process.

Referring to fig. 6 to 8, a cable connector 1000 according to the second aspect of the present utility model includes a connector body 200, a connection sleeve 300, a fastener 400, and a cold shrink seal 100 according to one aspect of the present utility model, wherein one end of the connection sleeve 300 is connected to the connector body 200, and the other end is sleeved on one end of a cold shrink tube 2 of the cold shrink seal 1000; one end of the supporting member 1 is abutted against the end of the connecting sleeve 300, and the other end extends out of the other end of the cold shrink tube 2.

In one embodiment, the connector body 200 and the connection sleeve 300 are integrally formed. The cold shrink tube 2 is preferably a rubber tube, for example, made of rubber commonly used in the art such as silicone rubber. The connector body 200 is preferably a generally hollow square or round tubular structure having a generally square, rectangular or round cross-section.

The outer circumference of the pipe body of the connection sleeve 300 is provided with at least one barb 301, and for increasing the waterproof and dustproof effects of the connection head, the outer circumference of the pipe body of the connection sleeve 200 is provided with at least two equally spaced barb 301 along the axial extension direction of the pipe body.

The cable fitting 1000 of the second embodiment of the present utility model further comprises a detachable cover 500 covering the portion of the support member 1 extending beyond the end of the cold shrink tube 2.

In summary, compared with the whole pulling-out method, the cold shrink seal 100 and the cable joint 1000 thereof provided by the utility model are more effective and quicker, and avoid the situation that the cold shrink tube 2 is forced to be damaged due to too large force application in the process of removing the support member 1.

While the utility model has been described with respect to the preferred embodiments, it will be apparent to those skilled in the art that various changes and substitutions can be made herein without departing from the scope of the utility model as defined by the appended claims. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (15)

1. The utility model provides a shrinkage sealing member for cladding in cable junction, is in including a cold shrinkage pipe, one set of that elastic material made is in be used for expanding in the cold shrinkage pipe the support piece of shrinkage pipe, the support piece can follow remove in the shrinkage pipe, its characterized in that, the support piece has a support piece main part that is long tube-shape and one set up on the support piece main part and follow support piece main part circumference spiral setting's easy tear structure, easy tear structure certainly support piece one end sets up and follows support piece main part circumference spiral extends to the support piece other end.

2. The cold-shrink seal of claim 1, wherein the tear-away feature further comprises a tear-away strip and a plurality of equally spaced apart propping elements integrally formed on the tear-away strip.

3. The cold-shrink seal of claim 2, wherein the tear-away feature further comprises a tear-away line disposed on the tear-away strip and the support body.

4. A cold-shrink seal according to claim 3, wherein the frangible line is any one of a short linear dashed line structure perpendicular to and penetrating the support body, an inverted "Y" shape, or a "chevron" shape.

5. The cold-shrink seal of claim 4, wherein the ends of the tear line do not pass beyond the ends of the support body and the tear line is disposed on either or both sides of the engagement of the tear strip with the support body.

6. A cold shrink seal as claimed in claim 3, wherein one end of the support member extends beyond the cold shrink tube and the other end does not extend beyond the cold shrink tube; or both ends of the supporting member protrude out of the cold shrink tube.

7. The cold-shrink seal of claim 6, wherein each of said lifters further comprises a lifter block that is lifted over said cable and a connecting block that is connected between said tear-off strip and said lifter block; or each propping piece is only a propping block which is integrally formed with the easy-tearing strip.

8. The cold shrink seal of claim 7, wherein the jacking block is jacked on the cable and a removal space is formed between the support body and the circumference of the cable when the cold shrink seal is wrapped around the cable-to-cable connection and the support is not removed.

9. The cold shrink seal of claim 8, wherein the top block is provided with a top surface and at least one movable surface disposed in a tearing direction and disposed at an obtuse angle to the top surface, wherein a displacement space for displacing the top block is formed between the movable surface and the cable being covered when the support body is not removed by tearing the tear strip.

10. The cold-shrink seal of claim 9, wherein the top and/or movable surfaces of the top block are provided with a plurality of protrusions; or a plurality of grooves which are arranged in parallel are arranged on the top surface and/or the movable surface of the top block.

11. A cable connector comprising a connector body, a connecting sleeve and a fastener, wherein the cold shrink sealing member as claimed in any one of claims 1 to 10 is adopted, one end of the connecting sleeve is connected with the connector body, and the other end of the connecting sleeve is sleeved at one end part of a cold shrink tube of the cold shrink sealing member; one end of the supporting piece is propped against the end part of the connecting sleeve, and the other end of the supporting piece extends out of the other end part of the cold shrink tube.

12. A cable fitting according to claim 11, wherein the outer circumference of the body of the connection sleeve is provided with at least one barb.

13. The cable fitting according to claim 12, wherein the outer circumferential ring of the tube body of the connection sleeve is provided with at least two of the barb portions arranged at equal intervals in a stacked manner in the axial extending direction of the tube body.

14. A cable tie according to any one of claims 11 to 13, further comprising a removable cover over a portion of the support member extending beyond the end of the cold shrink tube.

15. The cable fitting according to any of claims 11-13, wherein the fitting body, the connection sleeve are of an integrally formed construction.