CN207381136U

CN207381136U - A kind of FTU cables clad structure

Info

Publication number: CN207381136U
Application number: CN201721563924.8U
Authority: CN
Inventors: 徐勇; 王明国; 韩书林; 李峰
Original assignee: Shandong Ouma Jiabao Electric Technology Co Ltd
Current assignee: Shandong Ouma Jiabao Electric Technology Co Ltd
Priority date: 2017-11-21
Filing date: 2017-11-21
Publication date: 2018-05-18
Anticipated expiration: 2027-11-21

Abstract

The utility model discloses a kind of FTU cables clad structures, and including the first separation layer, the second separation layer and exodermis, every cable core is wrapped up by the first separation layer, and the first separation layer is with certain thickness fire retardant plastic grid；Second separation layer is insulating jacket layer, for wrapping the first separation layer；Exodermis wraps all second separation layers, and the outer surface of exodermis is arranged at intervals with the protrusion around exodermis circumference along cable core axis direction；Twill is provided on the surface being in contact with the second separation layer of first separation layer.Cable core and cable sheath are kept apart by the first separation layer and the second separation layer, reduce influence of the heating to cable core outer cladding substance migration service life when cable core uses；Cable sheath sets protrusion simultaneously, improves cable sheath and resists effect to external monkey wrench, further extend cable sheath layer service life, so as to play more effective protective effect to its inside cable structure.

Description

A kind of FTU cables clad structure

Technical field

The utility model belongs to cable production art, more particularly to a kind of FTU cables clad structure.

Background technology

For FTU cables, several factors can cause its crust damaged, such as the abrasion that cable sheath is daily, outside Collision between portion's hard objects and cable sheath etc.；In use, cable core can generate heat to cable simultaneously, outside cable Skin temperature also increases, and can also accelerate the aging of cable sheath so that cable sheath more cracky.Cable sheath breakage can be led It sends a telegraph that cable core is naked to be exposed on the external in environment, causes great security risk.

Utility model content

The technical problems to be solved in the utility model is to provide a kind of FTU cables clad structure, improves the guarantor to cable core Shield acts on.

In order to solve the above technical problems, technical solution is used by the utility model：

A kind of FTU cables clad structure, including the first separation layer, the second separation layer and exodermis, every cable core is by institute It states the first separation layer to be wrapped up, first separation layer is with certain thickness fire retardant plastic grid；Second separation layer For insulating jacket layer, for wrapping first separation layer；The exodermis wraps all second separation layers, described The outer surface of exodermis is arranged at intervals with the protrusion around exodermis circumference along cable core axis direction；First separation layer The surface being in contact with second separation layer on be provided with twill.

In the above-mentioned technical solutions, since exodermis is provided with protrusion, exodermis with exterior object is isolated, is reduced outer Contacting directly between portion's object and other cable sheath layer segments, such as when cable is positioned on ground, the liquid on ground Body is not easy to contact exodermis, thus can play a protective role to exodermis；Protrusion inner hollow simultaneously has centainly Flexibility, thus there is good cushioning effect for external hard objects and its generated making contact, so set The exodermis for being equipped with protrusion is resisted the abilities of external factor breaks and is greatly enhanced, and the construction of cable of its inside can be played more Effect is effectively protected, also just extends the service life using cable made by the utility model；For the first separation layer and For second separation layer, when having multi-cable core for one, the two plays insulating effect, while two between each cable core Person can play the protective effect to cable core；During cable use, cable core can generate heat, the first separation layer tool There is certain thickness grid, compared with crust is close to cable core, mesh space provides certain cooling effect for cable core, subtracts The heating degree of slow cable core, this allows for using under situation on an equal basis, the temperature in use for the cable core that the utility model is coated Lower, the first separation layer keeps apart cable core and the second separation layer in addition, it is thus possible to reduce electricity during cable use Influence of the heat caused by cable core to the second separation layer reduces the heating degree of the second separation layer, the heating of certain exodermis Degree also decreases, and so as to reduce influence of the heating to the second separation layer and exodermis inside cable, improves the second separation layer With the service life of exodermis, the service life of cable made by the utility model is equally extended；In addition exodermis, second every Absciss layer and the first separation layer are equivalent to provides triple protection for cable core, improves the protective effect to cable core, and even if Exodermis and the second separation layer are damaged, due to the presence of the dense grid of the first separation layer, personnel or exterior object It is not easy to touch cable core, enhances the safety in utilization of cable；It is further to note that set due to the first separation layer Twill can improve the rubbing action between the first separation layer and the second separation layer, such second separation layer stretching, extension, compression or It is not easy to shift to aggravate above-mentioned stretching, extension, compression or the bending damage caused by the second separation layer again while bending, carry The service life of high second separation layer extends the service life of cable made by the utility model；It should be noted that crust Layer is provided with protrusion, can fix cable by the space between protrusion or protrusion, improve with this practicality The ease of use of new cable.

As being further improved for technical solutions of the utility model, the protrusion be crest protrusion or boss-shaped protrusion, Each protrusion both can be enclosed integrally around the exodermis circumference one and set, can also be by several around the exodermis A point protrusion for even circumferential distribution forms, these point of protrusion can be crest protrusion or boss-shaped protrusion, so can basis External factor, such as the suitable protrusion of selections such as fluctuating situation on ground of the acuity of exterior object or placement cable Type improves the applicability of the utility model.

To sum up, a kind of FTU cables clad structure of the utility model is easy to use, widely applicable, can improve to cable core Protective effect, enhance the safety in utilization of cable, extend the service life of cable.

Description of the drawings

Fig. 1 is the structure diagram of the first embodiment of the utility model.

Fig. 2 is the front view of Fig. 1.

Fig. 3 is that exodermis and protruding portion are illustrated along the section of cable axis in the utility model the first embodiment Figure.

Fig. 4 is the structure diagram of second of embodiment of the utility model.

Fig. 5 is the front view of Fig. 4.

Fig. 6 is the schematic cross-section of exodermis and protruding portion in second of embodiment of the utility model.

Fig. 7 is the structure diagram of the third embodiment of the utility model.

Fig. 8 is the front view of Fig. 7.

Fig. 9 is the schematic cross-section of exodermis and protruding portion in the utility model the third embodiment.

Figure 10 is the structural scheme of mechanism of the 4th kind of embodiment of the utility model.

Figure 11 is the front view of Figure 10.

Figure 12 is that exodermis and protruding portion are illustrated along the section of cable axis in the 4th kind of embodiment of the utility model Figure.

Wherein：1- cables core；The first separation layers of 2-；The second separation layers of 3-；4- exodermises；5,7- protrusions, 6,8- divide protrusion.

Specific embodiment

Fig. 1 to Fig. 3 shows the first embodiment of the utility model.

As depicted in figs. 1 and 2, the FTU cables clad structure is for coating cable core so as to which cable be made, the embodiment In the FTU cables clad structure be applied to the cable with four cables core 1, including the first separation layer 2, the second separation layer 3 With exodermis 4, every cable core 1 is wrapped up first by the first separation layer 2, and the first separation layer 2 is with certain thickness fire-retardant Plastic cement grid body, the Grid Edge of grid body have one fixed width, the outer cladding of wherein one cable core 1 are illustrated only in Fig. 1 First separation layer 2, other cables core 1 equally have the first identical separation layer 2；Second separation layer 3 is insulating jacket layer, can be with It is made using polyvinyl chloride or rubber etc., for wrapping the first separation layer 2, i.e. every layer of first separation layer 2 is coated with second Separation layer 3, cable core 1, the first separation layer 2 are identical with the quantity of the second separation layer 3；Exodermis 4 wraps all four Two separation layers 3, the outer surface of exodermis 4 are arranged at intervals with the protrusion around 4 circumference of exodermis along cable core axis direction, often A protrusion is continuously around the hollow crest protrusion 5 of 4 circumference one of exodermis circle, and each protrusion is cut along 4 axis of exodermis Face is annulus, as shown in Figure 2；Exodermis 4 and protrusion can equally use polyvinyl chloride or rubber etc. to be made, the first isolation Twill (not shown in figure 1) is provided on the surface being in contact with the second separation layer 3 of layer 2；First separation layer 2, second is isolated The material of layer 3, exodermis 4 and protruding portion etc. does not interfere with bending or winding during cable use etc..

When several cables are put together, the protrusion between adjacent cable can be with interlaced interspersed, thus can also Play fixation.

Fig. 4 to Fig. 6 shows second of embodiment of the utility model, and the difference with the first embodiment exists In the hollow crest point protrusion 6 that each protrusion is distributed by four around 4 even circumferential of exodermis forms, such as Fig. 4 and Fig. 5 Shown, so each protrusion is gear-like along the section of 4 axis of exodermis, as shown in fig. 6, other are the same as the first embodiment party Formula.

Fig. 7 to Fig. 9 shows the third embodiment of the utility model, and the difference with the first embodiment exists In each protrusion is continuously as shown in Figure 7 and Figure 8, each to dash forward around the hollow convex mesa-shaped protrusion 7 of 4 circumference one of exodermis circle The portion of rising is annulus along the section of 4 axis of exodermis, as shown in figure 9, other are the same as the first embodiment.

Figure 10 to Figure 12 shows the 4th kind of embodiment of the utility model, and the difference with the third embodiment exists The hollow convex mesa-shaped point protrusion 8 being distributed with, each protrusion by four around 4 even circumferentials of exodermis forms, such as Figure 10 and Shown in Figure 11, each protrusion is gear-like along the section of 4 axis of exodermis, and as shown in figure 12, other are the same as the third embodiment party Formula.

The utility model is not limited to the above embodiment, such as the quantity of point protrusion 6 or 8 can be arranged as required to or become Change.

Further instruction, but the utility model have been carried out to the utility model above in conjunction with the drawings and specific embodiments Above-mentioned specific embodiment is not limited to, within the knowledge of a person skilled in the art, can also not taken off It is made a variety of changes on the premise of from the utility model aims.

Claims

1. a kind of FTU cables clad structure, which is characterized in that including the first separation layer (2), the second separation layer (3) and exodermis (4), every cable core (1) is wrapped up by first separation layer (2), and first separation layer (2) is with certain thickness Fire retardant plastic grid；Second separation layer (3) is insulating jacket layer, for wrapping first separation layer (2)；It is described outer Cortex (4) wraps all second separation layers (3), and the outer surface of the exodermis (4) is along cable core axis direction interval It is provided with the protrusion around exodermis (4) circumference；First separation layer (2) is in contact with second separation layer (3) Surface on be provided with twill.

2. a kind of FTU cables clad structure according to claim 1, which is characterized in that the protrusion is crest or convex Mesa-shaped.

3. a kind of FTU cables clad structure according to claim 1 or 2, which is characterized in that each protrusion is whole It is enclosed around the exodermis (4) circumference one.

4. a kind of FTU cables clad structure according to claim 1 or 2, which is characterized in that if each protrusion by Dry is divided protrusion (6 around the distribution of the exodermis (4) even circumferential；8) form.