CN210777896U - High-air-tightness pre-branch cable - Google Patents

Abstract

The utility model discloses a high gas tightness pre-branch cable, including the trunk cable, be equipped with the pre-branch joint in the middle of the trunk cable, the pre-branch joint wraps up on the trunk cable, pre-branch joint right-hand member top is equipped with branch cable, branch cable imbeds inside the pre-branch joint, branch cable left end has seted up a plurality of branch sinle silk, branch line in-core parcel has branch wire, branch sinle silk below is equipped with a plurality of trunk sinle silks, the trunk sinle silk is seted up on the trunk cable, trunk in-core parcel has trunk wire, trunk wire is connected with branch wire, branch wire and trunk wire junction outside are equipped with C type card, C type card outside is twined there is the mica tape, the mica tape outside is twined and is had high insulating tape, the high insulating tape outside is twined and is had the water blocking tape, the water blocking tape; the utility model has the advantages of reasonable design, simple structure, low price, strong air tightness and strong waterproof performance.

Description

High-air-tightness pre-branch cable

Technical Field

The utility model relates to a branch cable technical field in advance specifically is a high gas tightness branch cable in advance.

Background

The pre-branch cable is a cable for prefabricating branch lines according to a user design drawing when a main cable is produced by a factory, is a new technical product in recent years, has excellent shock resistance, air tightness and water resistance compared with the prior art, is manufactured on the main cable in advance by the branch line factory, and has the advantages that the section size, the length and the like of the branch lines are determined according to design requirements, the construction period is greatly shortened, the material cost and the construction cost are greatly reduced, and the reliability of power distribution is greatly ensured.

The technical route of the pre-branch cable is as follows: peeling off, crimping, injection molding, inspecting, packaging and warehousing of finished trunk lines and branch lines, generally crimping conductors by using a C-shaped clamp in the crimping process, then wrapping a mica tape layer, wrapping an insulating tape outside the mica tape layer, and then performing injection molding. Although mica tapes and insulating tapes have fire resistance and insulating properties, the waterproof property is general, and short circuits are easy to occur between main wire cores and branch wire cores in a joint in a water or humid environment, and the air tightness needs to be improved.

The utility model discloses a solve above-mentioned problem, provide a high gas tightness branch cable in advance, through improving present branch cable joint production technology in advance in order to improve the inside gas tightness of branch cable joint in advance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high gas tightness is branch cable in advance, has reasonable in design, simple structure, low price, the gas tightness is strong, waterproof performance is strong advantage, has solved the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a high-air-tightness pre-branch cable comprises a main cable, wherein a pre-branch joint is arranged in the middle of the main cable, the pre-branch joint is wrapped on the main cable, a branch cable is arranged at the top of the right end of the pre-branch joint and embedded into the pre-branch joint, a plurality of branch cable cores are arranged at the left end of each branch cable, branch metal wires are wrapped in the branch cable cores, a plurality of main cable cores are arranged below the branch cable cores, the main cable cores are arranged on the main cable, a main metal wire is wrapped in the main cable core and connected with the branch metal wires, a C-shaped clamp is arranged on the outer side of the joint of the branch metal wire and the main metal wire, a mica tape is wound on the outer side of the C-shaped clamp, a high-insulation adhesive tape is wound on the outer side of the mica tape, and a water blocking tape is wound, and an injection molding layer is arranged on the outer side of the water blocking tape.

Preferably, the water-blocking tape continuously wraps all branch wire cores and main wire cores at the inner side of the pre-branching joint after wrapping the branch metal wire, the C-shaped clamp and the main metal wire on the single fiber core.

Preferably, waterproof glue is coated at the ports of the main cable and the branch cable, which are positioned at the inner side of the pre-distribution joint.

Preferably, the injection molding layer is made of the following materials: a polycarbonate.

Preferably, the connecting blocks of the branch metal wires and the main metal wire are arranged along the axial direction of the main cable in sequence.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model relates to a high gas tightness branch cable in advance continues to wrap up branch sinle silk and the trunk sinle silk of the inboard whole of branch joint in advance through setting up the waterproofing strip, be convenient for increase the integrative gas tightness of branch sinle silk and trunk sinle silk inside the branch joint in advance, it is inside not hard up to prevent the branch joint in advance, be located the inboard port department of branch joint in advance through setting up trunk cable and branch cable and all scribble the waterproof glue, be convenient for isolated branch joint outside air in advance, increase the gas tightness of branch joint in advance, prevent because of the moist short circuit accident that takes place.

2. The utility model relates to a high gas tightness is branch cable in advance uses the polycarbonate material preparation layer of moulding plastics through setting up, and polycarbonate has the hardness height, and intensity is high, and insulating nature is strong and the characteristics that the heat resistance is good, is favorable to the protection to divide joint inner circuit in advance, and the connecting block through setting up branch metal conductor and trunk metal conductor is for prolonging main cable axial sequence arrangement, prevents that the distance is too near to produce the heat gathering between the connecting block, and the branch cable performance produces the influence in advance.

Drawings

Fig. 1 is a schematic view of an overall front-view cross-sectional structure of a high-airtightness pre-branch cable according to the present invention;

fig. 2 is the utility model relates to a high gas tightness is branch cable's C type card left side view structure schematic diagram in advance.

The figures are labeled as follows: 1. a trunk cable; 2. a pre-dividing joint; 3. a branched metal wire; 4. a branch wire core; 5. a branch cable; 6. an injection molding layer; 7. a water blocking tape; 8. a type C card; 9. a trunk metal wire; 10. a main wire core; 11. mica tapes; 12. high insulating tape.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example 1:

referring to fig. 1 and 2, a high-air-tightness pre-branched cable comprises a main cable 1, a pre-branched connector 2 is arranged in the middle of the main cable 1, a port of the main cable 1, which is positioned at the inner side of the pre-branched connector 2, is coated with waterproof glue, the port of the main cable 1, which is positioned at the inner side of the pre-branched connector 2, is coated with waterproof glue, so that air outside the pre-branched connector 2 is isolated, the air tightness of the pre-branched connector 2 is increased, short-circuit accidents caused by moisture are prevented, the pre-branched connector 2 is wrapped on the main cable 1, a branch cable 5 is arranged at the top of the right end of the pre-branched connector 2, the branch cable 5 is embedded into the pre-branched connector 2, the port of the branch cable 5, which is positioned at the inner side of the pre-branched connector 2, is coated with waterproof glue, so that air outside the pre, prevent because of the moist short circuit accident that takes place, a plurality of branch sinle silk 4 has been seted up to branch cable 5 left end, and the parcel has branch metallic conductor 3 in the branch sinle silk 4, and branch sinle silk 4 below is equipped with a plurality of trunk sinle silk 10, and trunk sinle silk 10 is seted up on main cable 1, and the parcel has trunk metallic conductor 9 in the trunk sinle silk 10.

Example 2:

referring to fig. 1, a high-airtightness pre-branch cable comprises branch metal leads 3 and trunk metal leads 9, the trunk metal leads 9 are connected with the branch metal leads 3, connecting blocks of the branch metal leads 3 and the trunk metal leads 9 are arranged along the axial direction of the trunk cable 1 in sequence, the connecting blocks of the branch metal leads 3 and the trunk metal leads 9 are arranged along the axial direction of the trunk cable 1 in sequence, so that heat accumulation caused by too close distance between the connecting blocks is prevented, and the performance of the pre-branch cable 5 is affected, a C-shaped clamp 8 is arranged outside the connecting position of the branch metal leads 3 and the trunk metal leads 9, a mica tape 11 is wound outside the C-shaped clamp 8, a high-insulation adhesive tape 12 is wound outside the mica tape 11, a water blocking tape 7 is wound outside the high-insulation adhesive tape 12, and the water blocking tape 7 continuously wraps all branch cores 4 and trunk cores 10 inside the pre-branch cable 2 after wrapping the branch metal leads 3, the C-shaped clamp 8 and the trunk metal leads 9 on The inboard whole branch sinle silk 4 and the trunk sinle silk 10 of branch joint 2 in advance are continued to wrap up to the water blocking tape 7, are convenient for increase the integrative gas tightness of branch sinle silk 4 and the trunk sinle silk 10 inside of branch joint 2 in advance, prevent to divide 2 inside not hard up of joint in advance, and the water blocking tape 7 outside is equipped with the layer 6 of moulding plastics, and the material that layer 6 of moulding plastics used does: polycarbonate, through setting up and using polycarbonate material preparation injection layer 6, polycarbonate has the hardness height, and intensity is high, and insulating nature is strong and heat resistance is good characteristics, is favorable to protecting the internal circuit of pre-branch joint 2.

The working principle is as follows: the utility model relates to a high gas tightness pre-branch cable, this pre-branch cable 5 is when making, skin trunk cable 1 and branch cable 5 earlier, then link together trunk metal conductor 9 and branch metal conductor 3, use C type card 8 to the junction chucking, then use mica tape 11 to twine branch metal conductor 3, C type card 8 and trunk metal conductor 9, mica tape 11 has outstanding insulating nature and fire resistance, twine high insulating tape 12 in the outside of mica tape 11 and do two side insulation protection, twine water-blocking tape 7 in the outside of high insulating tape 12, water-blocking tape 7 continues to wrap up whole branch sinle silk 4 and the trunk sinle silk trunk 10 in pre-branch joint 2 inboard behind branch metal conductor 3, C type card 8 and the trunk metal conductor 9 wrapping up on single fiber core, water-blocking tape 7 continues to wrap up whole branch sinle silk 4 and the trunk sinle silk 10 in pre-branch joint 2 inboard, be convenient for increase the integrative gas tightness of branch sinle silk 4 and the trunk sinle silk 10 inside of joint 2 in advance, prevent to advance that the joint 2 is inside not hard up in advance, increase the holistic waterproof nature of junction simultaneously, be located the port department of joint 2 inboard in advance through setting up trunk cable 1 and branch cable 5 and scribble waterproof glue, be convenient for isolated joint 2 outside air in advance, increase the gas tightness of joint 2 in advance, prevent to take place the short circuit accident because of the humidity.

Having shown and described the basic principles and principal features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. A high-airtightness pre-branch cable is characterized in that: including main cable (1), branch joint (2) are equipped with in the middle of main cable (1) in advance, divide joint (2) parcel in advance on main cable (1), branch joint (2) right-hand member top in advance is equipped with branch cable (5), branch cable (5) embedding is divided joint (2) inside in advance, a plurality of branch sinle silk (4) have been seted up to branch cable (5) left end, branch wire (3) are wrapped up in branch sinle silk (4), branch sinle silk (4) below is equipped with a plurality of trunk sinle silk (10), trunk sinle silk (10) are seted up on main cable (1), trunk wire (10) are wrapped up in trunk metallic conductor (9), trunk metallic conductor (9) are connected with branch metallic conductor (3), branch metallic conductor (3) and trunk metallic conductor (9) junction outside are equipped with C type card (8), the mica tape (11) is wound on the outer side of the C-shaped card (8), the high-insulation adhesive tape (12) is wound on the outer side of the mica tape (11), the water blocking tape (7) is wound on the outer side of the high-insulation adhesive tape (12), and the injection molding layer (6) is arranged on the outer side of the water blocking tape (7).

2. The high-airtightness pre-branch cable according to claim 1, wherein: and after wrapping the branch metal wire (3), the C-shaped card (8) and the main metal wire (9) on the single fiber core, the water-blocking tape (7) continuously wraps all the branch wire cores (4) and the main wire cores (10) at the inner side of the pre-tapping head (2).

3. The high-airtightness pre-branch cable according to claim 1, wherein: trunk cable (1) and branch cable (5) are located and all scribble waterproof glue in the port department of presorting joint (2) inboard.

4. The high-airtightness pre-branch cable according to claim 1, wherein: the injection molding layer (6) is made of the following materials: a polycarbonate.

5. The high-airtightness pre-branch cable according to claim 1, wherein: the connecting blocks of the branch metal wires (3) and the main metal wire (9) are sequentially arranged along the axial direction of the main cable (1).

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