High-reliability waterproof anti-termite power cable

Abstract

The utility model relates to a high-reliability waterproof anti-termite power cable, which comprises three groups of cable inner cores, a sheath and a plurality of groups of anti-termite insertion sheets, the outer side of each group of cable inner cores is coated with a protective layer, three inner core grooves matched with the cable inner cores are formed in the sheath, and the anti-termite insertion sheets are arranged in the inner core grooves. Three inner core grooves are formed in the outer wall of the sheath, the three groups of cable inner cores are respectively inserted into the three inner core grooves, so that the three groups of cable inner cores are coated on the inner side of the sheath, at least two convex parts extending along the length of the sheath are further formed on the outer wall of the sheath, and a group of anti-termite insertion sheets are arranged between every two adjacent convex parts. When the cable is laid and used, the epoxy resin component in the glass reinforced plastic pipe sheet has hydrophobicity to termites, so that decay and biting of the termites can be effectively resisted; the sheath has a complete and continuous cross section, so that water cannot pass through the sheath, the cable inner core can be effectively prevented from being in contact with the water, and the waterproof capability of the cable is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable technical field, concretely is a kind of high reliability waterproof ant type power cable. BACKGROUND

[0002] Cable is a kind of electric energy or signal transmission device, usually is by several or several groups of wires, usually is by several or several groups of wires (at least two in each group) twisted and formed into rope-like cable, mutual insulation between each group of wires, and often around a center twist, the whole outside is covered with highly-insulated covering, cable has the characteristics of internal power-on, external insulation.

[0003] Although the common cable line has outer sheath structure to protect cable line, but many cable lines laid in the ground or bush land outer sheath are easy to be damaged and bitten by termites and other insects, so that the cable line produces outer layer damage, and further affects the safety of cable line use. UTILITY MODEL CONTENT

[0004] (I) technical problem solved

[0005] The utility model provides a kind of high reliability waterproof ant type power cable, solve the problem raised in the above background technique.

[0006] (II) technical scheme

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of high reliability waterproof ant type power cable, including three groups of cable inner core, the outer side of each group cable inner core is covered and is provided with a layer of protective layer, further include sheath and several groups of ant prevention inserts, the inside of sheath is formed with three inner core grooves compatible with cable inner core, three groups of cable inner core are respectively inserted in three inner core grooves, so that three groups of cable inner core are covered in the inner side of sheath, at least two protruding portions extending along its length are further formed on the outer wall of sheath, and a group of ant prevention inserts is arranged between every two adjacent protruding portions.

[0008] Preferably, the ant prevention insert is arranged to be composed of several arc-shaped glass steel pipe pieces arrayed and laid along the length direction of sheath.

[0009] In further preferred, the middle part of protruding portion is formed with recessed insertion slot, and opening is formed on the outer end face of protruding portion.

[0010] In further preferred, the both ends of each glass steel pipe piece in ant prevention insert are formed with insertion buckle inserted into adjacent insertion slot, and two buckle grooves are further formed on each glass steel pipe piece in ant prevention insert, which are inserted and cooperated with adjacent protruding portion.

[0011] In a further preferred embodiment, the high-reliability waterproof and termite-proof power cable further comprises a plurality of fireproof inserts, each of the fireproof inserts being arranged between a group of the termite-proof inserts and the sheath.

[0012] In a further preferred embodiment, the interior of the sheath further forms three cavities, each of the cavities being distributed between two adjacent inner core grooves, and a filler is arranged in each of the cavities, the filler being arranged as an elastomer.

[0013] (III) Advantages

[0014] Compared with the prior art, the high-reliability waterproof and termite-proof power cable has the following advantages:

[0015] In the utility model, through the cooperation of the sheath and the termite-proof insert, the cable can be covered by the glass steel pipe on the outermost side when laid and used, and the epoxy resin component in the glass steel pipe is repulsive to termites, so that the cable can effectively resist the damage and bite of termites. The sheath has a complete and continuous cross section, so that water cannot pass through the sheath, thereby effectively avoiding the contact between the cable core and water and improving the waterproof performance of the cable. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a high-reliability waterproof and termite-proof power cable end cross section structure according to the embodiment;

[0017] Fig. 2 It is a structure diagram of the sheath and the fireproof insert according to the embodiment;

[0018] Fig. 3 It is a structure diagram of the termite-proof insert according to the embodiment.

[0019] In the drawings: 10, sheath; 11, inner core groove; 12, filler; 13, protruding part; 14, insertion slot; 20, cable core; 30, protective layer; 40, fireproof insert; 50, termite-proof insert; 51, buckling slot; 52, insertion buckle. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figs. 1 to 3The utility model relates to a kind of high-reliability waterproof and ant type power cable, can include sheath 10, three groups of cable inner core 20, three protective layers 30, several pieces of fire-retardant insert piece 40 and several groups of ant prevention insert piece 50.Every group of cable inner core 20 can be made of multiple copper wires, and the outer side of every group of cable inner core 20 is covered with a layer of protective layer 30, which can commonly have a layered structure with a shielding layer, a fire-retardant layer, etc.The sheath 10 is set to complete and continuous circular section, and the inside of the sheath 10 is formed with three inner core grooves 11 and three cavities respectively.The cable inner core 20 is adapted to the inner core groove 11, so that the three groups of cable inner core 20 covered with the protective layer 30 can be respectively inserted into the three inner core grooves 11.Each cavity is distributed between two adjacent inner core grooves 11, and the cavity is provided with a filling portion 12, which can be made of an elastomer structure of an elastic material, so that it can fill the cavity and improve the overall compression resistance of the cable.The elastomer that constitutes the filling portion 12 can also extrude the inner wall at the inner core groove 11, so that the cable inner core 20 is tightly covered by the inner wall at the inner core groove 11.The outer wall of the sheath 10 is formed with at least two protrusions 13 extending along the length thereof, the middle part of the protrusion 13 is formed with a recessed slot 14, and the slot 14 is formed with an opening on the outer end face of the protrusion 13.Each two adjacent protrusions 13 are provided with an ant prevention insert piece 50 and a fire-retardant insert piece 40, and the fire-retardant insert piece 40 is located between the ant prevention insert piece 50 and the sheath 10.The ant prevention insert piece 50 can be made of several arc-shaped glass steel pipe pieces arrayed along the length of the sheath 10, and each glass steel pipe piece constituting the ant prevention insert piece 50 is formed with a buckling groove 51 and an insertion buckle 52 at both ends, so that the insertion buckle 52 can be inserted into the slot 14, and the protrusion 13 can be inserted into the buckling groove 51, thereby buckling the ant prevention insert piece 50 on the outer side of the sheath 10, and fixing the fire-retardant insert piece 40 between the sheath and the ant prevention insert piece 50 using the ant prevention insert piece 50.

[0022] In the present embodiment, by using glass steel pipe pieces to constitute the ant prevention insert piece, the glass steel pipe pieces can use epoxy resin as the main component, which is repulsive to termites, thereby effectively resisting the damage and biting of termites.

[0023] In the present embodiment, the fire-retardant insert piece can be made of plastic materials such as fire-retardant polyvinyl chloride, polyolefin polymer and fluoroplastic, and can also be made of inorganic metal hydrates such as aluminum hydroxide and magnesium hydroxide.

[0024] In the above-mentioned all solutions, although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-reliability waterproof and termite-proof power cable, comprising three sets of cable cores (20), each set of cable cores (20) having a protective layer (30) wrapped around its outer side, characterized in that, It also includes a sheath (10) and several sets of anti-ant inserts (50). The sheath (10) has three inner core grooves (11) that are adapted to the inner cores (20) of the cable. The three sets of inner cores (20) are respectively inserted into the three inner core grooves (11), so that the three sets of inner cores (20) cover the inner side of the sheath (10). At least two protrusions (13) extending along their length are also formed on the outer wall of the sheath (10). A set of anti-ant inserts (50) is provided between each two adjacent protrusions (13).

2. The high-reliability waterproof and termite-proof power cable according to claim 1, characterized in that: The anti-ant insert (50) is configured to be composed of several arc-shaped fiberglass pipe pieces laid in an array along the length of the sheath (10).

3. The high-reliability waterproof and termite-proof power cable according to claim 2, characterized in that: A recessed slot (14) is formed in the middle of the protrusion (13), and the slot (14) has an opening on the outer end face of the protrusion (13).

4. A high-reliability waterproof and termite-proof power cable according to claim 3, characterized in that: Each fiberglass tube in the anti-ant insert (50) has a buckle (52) at both ends that can be inserted into the adjacent slot (14), and each fiberglass tube in the anti-ant insert (50) also has two snap-fit ​​grooves (51) that can be inserted into the adjacent protrusion (13).

5. A high-reliability waterproof and termite-proof power cable according to claim 4, characterized in that: It also includes several flame-retardant inserts (40), each of which is disposed between a set of anti-termite inserts (50) and a sheath (10).

6. A high-reliability waterproof and termite-proof power cable according to claim 1, characterized in that: The sheath (10) also has three cavities inside, each cavity being distributed between two adjacent inner core grooves (11), and each cavity is provided with a filling part (12), which is an elastomer.

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