CN211428894U - Plug-in type heat-shrinkable sleeve - Google Patents

Abstract

The utility model provides a plug-in type heat-shrinkable bush, including heat-shrinkable bush and intermediate junction cover, the heat-shrinkable bush includes the body and is located the body outside and body trapezoidal protruding muscle that falls as integrated into one piece, and the intermediate junction cover includes the shell body, and the both ends of shell body have input trompil and output trompil that can insert the sheathed tube, and the intermediate junction cover is inside to have the cable access, and input trompil and output trompil all have the slot that can peg graft with protruding muscle, and the shell body includes releasable connection's last casing and lower casing, goes up through bolt fixed connection between casing and the lower casing, the utility model discloses the structure can conveniently satisfy at the defect design that cable shunting in-process is weak to heat-shrinkable bush link compressive capacity, provides resistance to compression intermediate junction cover structure, can conveniently realize cable heat-shrinkable bush's separated time connection and coupling portion's protection, has improved the security of installation.

Description

Plug-in type heat-shrinkable sleeve

Technical Field

The utility model relates to a plug-in type heat shrinkage bush.

Background

When the existing cable branches are connected or the cables are in butt joint, the cable joint is often connected through the heat-shrinkable finger sleeve by utilizing the heat-shrinkable sleeve cable or the cable joint, and the existing heat-shrinkable structure is not high in compressive strength, needs not high in design and is not suitable for being buried in the ground and being pressed or used in a wet state.

Disclosure of Invention

The utility model discloses improve above-mentioned problem, promptly the to-be-solved technical problem of the utility model is that compressive strength is not high in the current pyrocondensation structure, exists the potential safety hazard in pyrocondensation joint department easily.

The utility model discloses a concrete implementation scheme is: the utility model provides a plug-in type heat-shrinkable bush, includes heat-shrinkable bush and intermediate junction cover, the heat-shrinkable bush includes the body and is located the body outside and the body protruding muscle of trapezoidal as an organic whole that is integrated into one piece, the intermediate junction cover includes the shell body, the both ends of shell body have input trompil and the output trompil that can insert the sheathed tube, the inside cable access who has UNICOM both ends input trompil and output trompil of intermediate junction cover, input trompil and output trompil all have the slot that can peg graft with protruding muscle, the shell body includes releasable connection's last casing and lower casing, go up casing and lower casing and have the cavity that can constitute input trompil, output trompil and cable access to the face, the slot is located last shells inner wall and with the cavity UNICOM in the last casing, go up through bolt.

Further, an arc rubber layer is fixed on the inner surface of the concave cavity of the lower shell, and the sectional area formed by the arc rubber layer and the corresponding concave cavity of the upper shell is smaller than the sectional area of the sleeve.

Furthermore, the middle connecting sleeve is provided with a plurality of input openings at one end, the output openings are provided with a plurality of channels, the cable passages are separated into a plurality of output openings by the channels, and the channels are formed by splicing the convex parts of the upper shell and the convex parts of the lower shell.

Furthermore, the middle connecting sleeve is provided with one input opening and one output opening.

Furthermore, it has water inflation stagnant water to fill between input trompil and the output trompil tip inner wall of shell body and the cable and glues.

Furthermore, the outer shell is made of PP, and the heat shrinkable tube is made of EVA.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses the defect design that the structure can conveniently satisfy in cable shunting in-process is weak to heat shrinkage bush link compressive capacity provides the resistance to compression intermediate junction cover structure, can conveniently realize that cable heat shrinkage bush's separated time is connected and coupling part's protection, has improved the security of installation effectiveness and butt joint department.

Drawings

Fig. 1 is a schematic view of the heat shrinkable sleeve of the present invention.

Fig. 2 is a schematic view of an intermediate connection sleeve according to an embodiment of the present invention.

Fig. 3 is a schematic view of an output open pore structure of the second intermediate connecting sleeve of the embodiment of the present invention.

Fig. 4 is a schematic view of an input opening structure of a second intermediate connecting sleeve according to an embodiment of the present invention.

Fig. 5 is the schematic view of the internal structure of the second intermediate connecting sleeve of the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 5, a plug-in type heat-shrinkable tubing comprises a heat-shrinkable tubing 10 and an intermediate connecting sleeve, the heat-shrinkable tubing comprises a tube body and an inverted trapezoidal convex rib 120 which is located outside the tube body and integrated with the tube body 110, the intermediate connecting sleeve comprises a shell body 210, an input opening 220 and an output opening 230 which can be sleeved with the tube are arranged at two ends of the shell body 210, a cable passage 240 communicating the input opening and the output opening at two ends is arranged inside the intermediate connecting sleeve, and the input opening 220 and the output opening 230 are both provided with slots 250 which can be plugged with the convex rib of the tube to be plugged.

In this embodiment, the input opening 220 and the output opening 230 include a through hole 260 having a circular cross section, the through hole is communicated with a slot 250, the through hole 260 is consistent with the diameter of the pipe body 110 to be inserted with the heat shrinkable tube, the cross sections of the input opening 220 and the output opening 230 are designed according to the size of the power cable corresponding to the inserted heat shrinkable tube, the outer shell includes an upper shell 201 and a lower shell 202 which are detachably connected, the opposite surfaces of the upper shell 201 and the lower shell 202 are provided with cavities (203, 204) capable of forming the input opening, the output opening and the cable passage, the slot 250 is located on the inner wall of the upper shell and is communicated with the cavity 203 in the upper shell, the side parts of the upper shell and the lower shell extend to form wing plates 260 which are matched with each other, and the upper shell and the lower shell are fixedly connected through bolts 270 penetrating through the wing.

In the first embodiment, the input opening 220 and the output opening 230 of the middle connection sleeve are both provided with one, cables at two ends of the butt connection sleeve the same heat-shrinkable sleeve on the outer portion of the butt connection portion, the inverted trapezoidal convex rib 120 of the heat-shrinkable sleeve 10 is inserted into the slot 250 of the upper housing, then the heat-shrinkable sleeve is heated and shrunk, and then the lower housing is fixedly connected with the upper housing. During the pyrocondensation, adopt the oven to heat the pyrocondensation pipe, in this embodiment, the material of pyrocondensation pipe is EVA, and the shell body then adopts the heat-resisting plastics that heat-resisting temperature is greater than the pyrocondensation material, in the aspect of dimensional design, after the pyrocondensation pipe deformation shrink like this, the protruding muscle of the trapezoidal shape of falling is located the slot 250 of last casing, because the protruding muscle 120 of the trapezoidal shape of falling inserts in advance that the internal periphery side of upper casing is heated less shrink not big, later realize through the fixed of lower casing and upper casing with the coupling part fixed fixation in.

In the second embodiment, there are one input opening 220 and three output openings 230 at one end of the middle connection sleeve, and the middle connection sleeve has a separating channel 280 for separating the cable passage into a plurality of regions, the separating channel is formed by combining a convex part 281 of the upper housing and a convex part 282 of the lower housing, and the convex part has a groove capable of matching with the convex part to separate the regions of the output openings.

During operation, the input cable and the output cable are sleeved with corresponding heat-shrinkable sleeves, the heat-shrinkable sleeves are correspondingly inserted into the independent input opening and the independent output opening of the upper shell respectively, then the heat-shrinkable sleeves are heated and shrunk, the upper shell and the lower shell are fixed by bolts, and each output cable, namely, the cable branch, is fixed in different output openings 230.

In the above embodiment, in order to improve the sealing performance, an arc rubber layer 290 may be further fixed in the cavity of the lower casing, and the cross-sectional area formed by the arc rubber layer and the corresponding cavity of the upper casing is smaller than the cross-sectional area of the sleeve.

In addition, after the upper shell and the lower shell are fixedly connected, in order to improve the sealing property, water swelling and water stopping glue is filled between the inner walls of the end parts of the input opening and the output opening of the outer shell and the cable.

The strength through the middle connecting sleeve can avoid burying connecting wire junction pressurized, and can conveniently separate each cable spacing, has improved the security of installation effectiveness and butt joint department.

Any technical solution disclosed in the present invention is, unless otherwise stated, disclosed a numerical range if it is disclosed, and the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Because numerical value is more, can't be exhaustive, so the utility model discloses just disclose some numerical values with the illustration the technical scheme of the utility model to, the numerical value that the aforesaid was enumerated should not constitute right the utility model discloses create the restriction of protection scope.

Also, above-mentioned the utility model discloses if disclose or related to mutually fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.

The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims (6)

1. The utility model provides a plug-in type heat-shrinkable bush, its characterized in that, includes heat-shrinkable bush and adapter sleeve, the heat-shrinkable bush includes the body and is located the body outside and the body is trapezoidal protruding muscle that falls of integrated into one piece, adapter sleeve includes the shell body, the both ends of shell body have the input trompil and the output trompil that can insert the sheathed tube, the inside cable access who has UNICOM both ends input trompil and output trompil of adapter sleeve, input trompil and output trompil all have the slot that can peg graft with protruding muscle, the shell body includes releasable connection's last casing and lower casing, it has the cavity that can constitute input trompil, output trompil and cable access to go up casing and lower casing facially, the slot is located shells inner wall and with the cavity UNICOM in the last casing, go up through bolt fixed connection between casing and the.

2. The heat-shrinkable sleeve of claim 1, wherein an arcuate rubber layer is fixed to an inner surface of the cavity of the lower shell, and a cross-sectional area of the arcuate rubber layer and a corresponding cavity of the upper shell is smaller than a cross-sectional area of the sleeve.

3. The heat-shrinkable sleeve according to claim 2, wherein the intermediate connecting sleeve has a plurality of input openings and a plurality of output openings at one end, and the intermediate connecting sleeve has a plurality of partitions for partitioning the cable path to form a plurality of output openings, and the partitions are formed by splicing the convex portion of the upper shell and the convex portion of the lower shell.

4. The heat shrink sleeve of claim 2, wherein there is one each of said adapter sleeve input and output openings.

5. The connect-type heat-shrinkable sleeve according to claim 3 or 4, wherein a water-swellable water-stop adhesive is filled between the inner walls of the ends of the input opening and the output opening of the outer housing and the cable.

6. The plug-in heat-shrinkable sleeve according to claim 3 or 4, wherein the material of the outer shell is PP and the material of the heat-shrinkable tube is EVA.

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