Support for intermediate joint of three-core cable and three-core cable thereof

Abstract

The utility model relates to the technical field of three-core cable devices, in particular to a support for an intermediate joint of a three-core cable and the three-core cable thereof, which comprises a support, three groups of arc-shaped grooves are arranged on the outer side wall of the support, inner grooves are arranged on the inner sides of the arc-shaped grooves of the support, wrapping plates are fixed in the inner grooves, bulges are fixed at two ends of the wrapping plates, and the bulges are fixed on the outer side wall of the support. A through hole is formed in the middle of the support, a pin shaft is arranged in the through hole, locking nuts are arranged at the two ends of the pin shaft in a sleeving mode, the cable can be deflected outwards along the inner groove in the using process, the wrapping plate structure can wrap the cable, the comprehensive protection effect is achieved, if deflection is not conducted, the cable structure can be controlled and fixed at equal intervals through the support structure, and the cable structure can be fixed. The middle joint of the three-core cable is not deformed, the service life of the middle joint is prolonged, the safety and reliability of circuit operation can be improved, and potential safety hazards are greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to three core cable device technical field, concretely relates to a support for three core cable intermediate joint and three core cable thereof. BACKGROUND

[0002] The greater the cable core cross section, the greater the thermal mechanical force generated; meanwhile, the core and metal sheath will also produce creep due to the multiple cycles of thermal expansion and contraction. Thermal expansion and contraction pose a great threat to the operation of power cables, causing cable displacement, slippage, and even damage to the cable and accessories. To solve the above problems, the cable is laid in a horizontal "S" shape, greatly reducing the damage of mechanical energy generated by thermal expansion and contraction of the cable. Therefore, the most critical procedure in the process of cable serpentine laying is to maintain the "S" shape.

[0003] Generally, plastic straps and metal cable clamps are used to fix the cable. Plastic easily ages and cannot fix the shape well, and regular replacement will increase the cost of cable operation and maintenance. Metal clamps can fix the shape well, but their cost is too high, and metal is not insulated, which can easily corrode during use, increasing equipment maintenance costs and shortening the service life, and the function is relatively single. UTILITY MODEL CONTENT

[0004] Technical problem solved

[0005] In view of the above shortcomings of the prior art, the utility model provides a support for three core cable intermediate joint and three core cable thereof, which can effectively solve the problems of easy aging of plastic material, non-insulation of metal clamp and relatively single function in the prior art.

[0006] Technical scheme

[0007] To achieve the above purpose, the utility model realizes the following technical scheme:

[0008] The utility model provides a support for three core cable intermediate joint, which comprises a support, three groups of arc-shaped grooves are formed on the outer side wall of the support, an inner groove is formed in the inner side of the arc-shaped groove of the support, a wrapping plate is fixed in the inner groove, protrusions are fixed at both ends of the wrapping plate, a through hole is formed in the middle of the support, a pin shaft is arranged in the through hole, and lock nuts are sleeved on both ends of the pin shaft.

[0009] Further, the support is provided with two groups, and the arc length of the inner groove of the support is greater than half of the arc length of the cable.

[0010] Further, the pin shaft is provided with a threaded structure at both ends and in the middle.

[0011] Further, the inner groove and the protrusions on both sides of the wrapping plate are in interference fit.

[0012] Further, the bracket and the wrapping plate are both made of insulating material.

[0013] A three-core cable, comprising a bracket for a three-core cable intermediate joint, comprising the cable, the cable being placed in an arc-shaped groove on the outer side of the bracket.

[0014] Advantages

[0015] Compared with the known prior art, the technical scheme provided by the utility model has the following advantages:

[0016] The bracket structure is provided, the user places the cable in the arc-shaped groove of the bracket, the front and rear two groups of bracket structures are connected through the pin shaft in the middle, the position of the bracket is fixed through the locking nut, the wrapping plate structure is arranged in the inner groove, in use, the wrapping plate structure can be deflected outward along the inner groove, the wrapping plate structure can wrap the cable therein, the overall protection effect is achieved, if the cable structure is not deflected, the cable structure can be fixed through equidistant control relying on the bracket structure, the three-core cable intermediate joint is not deformed, the service life of the intermediate joint is improved, the safety and reliability of circuit operation are improved, and the safety hidden danger is greatly reduced.

[0017] In the device, the bracket and the wrapping plate structure made of insulating material can better ensure the insulation performance of the bracket. DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a structural split diagram of the utility model;

[0021] Figure 3 It is a structural split diagram of the wrapping plate and the bracket of the utility model;

[0022] Figure 4 It is a structural split diagram of the pin shaft and the wrapping plate in the utility model.

[0023] The labels in the figure respectively represent: 1, cable; 2, support; 21, inner groove; 22, through hole; 3, pin shaft; 31, locking nut; 4, wrapping plate; 41, protrusion. DETAILED DESCRIPTION

[0024] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are 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 protection scope of the utility model.

[0025] The utility model will be further described below in combination with embodiments.

[0026] Embodiment: a support for three-core cable intermediate joint, referring to the drawings of the accompanying drawings Figure 1 - the drawings of the accompanying drawings Figure 4 , including support 2, the outer side wall of support 2 is provided with three groups of arc grooves, the inner side of the arc groove of support 2 is provided with inner groove 21, wrapping plate 4 is fixed in inner groove 21, the both ends of wrapping plate 4 are fixed with protrusion 41, the middle part of support 2 is provided with through hole 22, pin shaft 3 is arranged in through hole 22, the both ends of pin shaft 3 are provided with locking nut 31;

[0027] Support 2 is provided with two groups, and the arc length of inner groove 21 of support 2 is greater than half of the arc length of cable 1; the both ends and the middle part of pin shaft 3 are provided with threaded structure; inner groove 21 and protrusion 41 on both sides of wrapping plate 4 are in interference fit; support 2 and wrapping plate 4 are made of insulating material; through the structure of support 2, the user places cable 1 in the arc groove of support 2, the front and rear two groups of support 2 structures can be connected through the middle pin shaft 3, and the position of support 2 is fixed through locking nut 31, and the wrapping plate 4 structure arranged in the inner groove 21 can be deflected outward along the inner groove 21 in use, and the wrapping plate 4 structure can wrap cable 1 therein, which has the effect of comprehensive protection, if not deflected, the cable 1 structure can be fixed at equal intervals by relying on the support 2 structure, so that the three-core cable intermediate joint is not deformed, the service life of the intermediate joint is improved, and the safety and reliability of circuit operation are improved, which greatly reduces the safety hazard.

[0028] Embodiment two: a three-core cable, comprising a support for three-core cable intermediate joint in embodiment one, comprising the cable 1, and the cable 1 is placed in the arc groove on the outer side of support 2.

[0029] The above examples are only used to illustrate the technical solutions of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced equivalently; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A support for a three-core cable intermediate joint, characterised in that, The utility model provides a cable wrapping device, including support (2), three groups of arc grooves are seted up on the outer side wall of support (2), the inner side of arc groove of support (2) all are seted up with inner groove (21), the inner groove (21) is fixed with wrapping board (4), both ends of wrapping board (4) are all fixed with protruding (41), the middle part of support (2) is seted up with through hole (22), the through hole (22) is provided with pin shaft (3), both ends of pin shaft (3) are seted with lock nut (31).

2. A support for a three-core cable intermediate joint according to claim 1, characterised in that The support (2) is provided with two groups, and the arc length of the inner groove (21) of the support (2) is greater than half of the arc length of the cable (1).

3. A support for a three-core cable intermediate joint according to claim 1, characterised in that Threaded structures are formed on both ends and the middle part of the pin shaft (3).

4. A support for a three-core cable junction according to claim 1, characterised in that The protrusions (41) on both sides of the inner groove (21) and the wrapping board (4) are in interference fit.

5. A support for a three-core cable intermediate joint according to claim 4, characterised in that The support (2) and the wrapping board (4) are both made of insulating material.

6. A three-core cable comprising a support for a three-core cable intermediate joint according to any one of claims 1 to 5, characterized in that, The cable (1) is arranged in the arc-shaped groove on the outer side of the support (2).

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