CN211507193U

CN211507193U - Steel wire armored ultra-soft cable

Info

Publication number: CN211507193U
Application number: CN202020113065.8U
Authority: CN
Inventors: 王涛; 沈道华; 王中红; 卢慰
Original assignee: Wuhan Zhongxin Cable Group Co ltd
Current assignee: Wuhan Zhongxin Cable Group Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-09-15
Anticipated expiration: 2030-01-17

Abstract

The utility model belongs to the technical field of wire and cable's technique and specifically relates to a steel wire armor ultra-soft cable is related to, including stranded cable core, the outer parcel of cable core has insulating core and shielding layer, its characterized in that, stranded cable core's the outside is still around having around the covering in proper order, armor and outer jacket, still is provided with the elastic layer between armor and the outer jacket, and the elastic layer includes a plurality of rubber strip that set up along cable circumference equidistant, and the rubber strip cross-section is circular and its week side and armor outer wall and outer jacket inner wall butt, and equal elasticity inlays between two adjacent rubber strips and is equipped with a connecting strip. The utility model discloses it is good to have that plasticity is stronger and the manifold ability, and long-time keeping state of buckling also can adjust the crookedness of cable at will, ensures cable life's effect.

Description

Steel wire armored ultra-soft cable

Technical Field

The utility model belongs to the technical field of wire and cable's technique and specifically relates to a steel wire armor super flexible cable is related to.

Background

The cable is an electrified cable which can be frequently contacted in daily life, particularly in an industrial production field, different specifications of cables can be seen, in industrial application occasions, due to a lot of uncertain factors existing in an installation environment, the requirement on the cable is high, particularly in a narrow environment, the cable needs to be bent and wound for many times when being laid, and the requirement on the flexibility of the cable is high.

A patent with a publication number of CN206075872U is retrieved, and discloses a wear-resistant, bending-resistant and compression-resistant flexible cable which comprises an insulating wire core, a copper conductor, a bending-resistant insulating core layer, a filler, a tensile aluminum foil Mylar layer and an outer protective layer; the insulated wire core is internally provided with a folding-resistant insulated core layer, a copper conductor is arranged in the folding-resistant insulated core layer, the outer surfaces of the insulated wire cores are arranged in a tangent mode, the periphery of each insulated wire core is provided with a filler, the periphery of each filler is provided with a tensile aluminum foil Mylar layer, and the periphery of each tensile aluminum foil Mylar layer is provided with an outer protective layer.

Because above-mentioned cable improves whole compliance through resistant insulating core layer, and insulating material's elastic recovery ability is limited, and the cable is settled in narrow and small space in the use, and after long-time keeping the installation state of buckling, once readjusting the bending curvature of cable, easily lead to the cable to be able to bear or turn over the fracture of folding layer, make the life of cable reduce, therefore above-mentioned scheme is waited to improve.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a steel wire armor super soft cable has the advantage that can buckle and rebound again, the compliance is good.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a steel wire armor ultra-soft cable, includes stranded cable core, the outer parcel of cable core has insulating core and shielding layer, its characterized in that, stranded the outside of cable core is still around having around covering, armor and outer jacket in proper order, the armor with still be provided with the elastic layer between the outer jacket.

The elastic layer includes a plurality of rubber strips that set up along cable circumference equidistant, the rubber strip cross-section be circular and its week side with the armor outer wall with outer jacket inner wall butt, adjacent two equal elasticity inlays between the rubber strip and is equipped with a connecting strip.

By adopting the technical scheme, the elastic layer arranged outside the cable core is mutually connected by traction of the connecting strip between every two rubber strips, and the connecting strip is pressed and compressed under the extrusion of the pair of rubber strips while the rubber strips are pressed, flattened and deformed under the action of bending and application of external force; on the contrary, after the rubber strip is bent, the connecting strip pushes the rubber strip to be restored to the initial form through the elasticity of the connecting strip, so that the plasticity is strong, the reshaping capacity is good, the bending degree of the cable can be adjusted randomly in a long-time bending state, the toughness of the cable is further improved, and the service life of the cable is ensured.

The utility model discloses can further configure to in a preferred example, the both sides homogeneous body of connecting strip is provided with the joint strip, joint strip outer arc cross-section is the sphere form, connecting strip week side correspondence seted up with the draw-in groove of joint strip adaptation.

Through adopting above-mentioned technical scheme, can avoid in the joint groove embedding draw-in groove of sphere joint strip to break away from in the rubber strip, the steadiness of pegging graft, the wholeness of elastic layer can strengthen.

The present invention may be further configured in a preferred embodiment such that the upper and lower end surfaces of the connecting strip and the armor layer and the outer sheath form a pressurized cavity therebetween.

Through adopting above-mentioned technical scheme, the pressurized cavity then provides the space for the deformation of rubber strip and connecting strip, makes the compliance of cable higher.

The utility model discloses can further configure to in a preferred example, in the stranded the center department of cable core is provided with a holding ring, the equal butt in all sides of cable core in on the holding ring.

Through adopting above-mentioned technical scheme, the holding ring can provide the fulcrum for many cables, makes the location between the adjacent cable core more firm, also can avoid the inside phenomenon such as dislocation that takes place of cable when the cable is crooked, and stability is better.

The utility model discloses can further configure to in a preferred example, all extend on the four image points of position ring week side and set firmly the separation and be used for separating adjacent the branch parting bead of cable core.

Through adopting above-mentioned technical scheme, every cable core is separated to the setting of parting strip to avoid producing the interference each other, still can reduce thermal mutual transmission.

The utility model discloses can further configure to in a preferred example, four the parting bead is kept away from one side interval of holding ring is equipped with a plurality of recesses.

Through adopting above-mentioned technical scheme, because of seting up of recess makes around the covering when wrapping, but the one-to-one around establish make around the local of covering can imbed the recess in, make around the covering can be compacter, more even when wrapping.

The utility model discloses can further configure to in a preferred example, insulating core inboard with the shielding layer outside bonds each other, the shielding layer is semi-conductive shielding layer.

Through adopting above-mentioned technical scheme, the shielding layer can effectual separation partial discharge phenomenon between the adjacent cable core, makes the cable when buckling, can not produce the electric branch phenomenon, and then avoids the inside each layer fracture of cable, plays the guard action to the cable is inside.

The present invention may be further configured in a preferred embodiment such that the surface of the outer jacket is coated with an anti-aging coating.

By adopting the technical scheme, the anti-aging capacity of the surface layer is improved, and the service life of the outer protective layer is prolonged.

To sum up, the utility model discloses a following beneficial technological effect:

1. each two rubber strips are mutually connected by traction of a connecting strip, and the connecting strips are compressed and contracted under the extrusion of a pair of rubber strips while the rubber strips are pressed, flattened and deformed; on the contrary, after the rubber strip is bent, the connecting strip pushes the rubber strip to be restored to the initial form through the elasticity of the connecting strip, and the bending degree of the cable can be adjusted randomly when the connecting strip is kept in a bent state for a long time, so that the plasticity is strong and the reshaping capacity is good;

2. the spherical clamping groove is embedded into the clamping groove, so that the clamping strip can be prevented from being separated from the rubber strip, the splicing stability is firm, and the integrity of the elastic layer is enhanced;

3. the compression cavity provides a space for deformation of the rubber strip and the connecting strip, so that the flexibility of the cable is higher.

Drawings

Fig. 1 is a schematic sectional structure of the present invention;

fig. 2 is an enlarged view at a in fig. 1.

Reference numerals: 1. a cable core; 2. an insulating core layer; 3. a shielding layer; 4. wrapping a covering; 5. an armor layer; 6. an outer jacket; 7. an elastic layer; 71. a rubber strip; 72. a connecting strip; 73. a clamping strip; 74. a card slot; 8. a pressurized cavity; 9. a positioning ring; 10. a dividing strip; 11. a groove; 12. and (5) filling the layer.

Detailed Description

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

Referring to fig. 1, for the utility model discloses a steel wire armor ultra-soft cable, including four-strand cable core 1, the outside parcel of every cable core 1 has insulating core layer 2 and shielding layer 3, and 2 inboards of insulating core layer bond each other with the 3 outsides of shielding layer, and shielding layer 3 is semi-conductive shielding layer, and shielding layer 3 can be the local discharge phenomenon between the adjacent cable core 1 of effectual separation, makes the cable when buckling, can not produce the electric branch phenomenon, and then avoids the inside each layer fracture of cable, plays the guard action to cable inside.

Be provided with a cross-section in four-strand cable core 1 center department and be the annular holding ring 9 of circle, the equal butt in all sides of cable core 1 is on holding ring 9, holding ring 9 can provide the fulcrum for many cables, make the location between the adjacent cable core 1 more firm, also can avoid the phenomenon such as the inside dislocation of taking place of cable when the cable is crooked, stability is better, all extend on the four image points of holding ring 9 all sides and set firmly the partition strip 10 that is used for separating adjacent cable core 1, the setting of partition strip 10 separates every cable core 1, in order to avoid producing the interference each other, still can reduce thermal mutual transmission.

Referring to fig. 1, a wrapping layer 4, an armor layer 5 and an outer protective layer 6 are sequentially wrapped on the outer sides of four cable cores 1, a filling layer 12 is filled between the cable cores 1 and the wrapping layer 4, the filling layer 12 is made of a mica tape, the mica tape is good in heat resistance, and the mica tape is suitable for hot environment use places and can reduce heat conduction to the inside of a cable; the armor layer 5 is wound by copper wires, and the surface of the outer protective layer 6 is coated with an anti-aging coating, so that the anti-aging capability of the surface layer is improved, and the service life of the outer protective layer 6 is prolonged; four parting bead 10 keep away from holding ring 9 one side spaced apart and be equipped with a plurality of recesses 11, because of seting up of recess 11 makes around covering 4 when wrapping, can the one-to-one around set up make around covering 4 local can imbed in recess 11, make around covering 4 can be compacter, more even when wrapping.

Referring to fig. 1 and 2, an elastic layer 7 is further arranged between the armor layer 5 and the outer protective layer 6, the elastic layer 7 comprises a plurality of rubber strips 71 which are arranged at equal intervals along the circumferential direction of the cable, the cross sections of the rubber strips 71 are circular, the peripheral sides of the rubber strips are abutted to the outer wall of the armor layer 5 and the inner wall of the outer protective layer 6, a connecting strip 72 is elastically embedded between every two adjacent rubber strips 71, clamping strips 73 are integrally arranged on two sides of the connecting strip 72, the outer arc cross sections of the clamping strips 73 are spherical, clamping grooves 74 which are matched with the clamping strips 73 are correspondingly formed in the peripheral sides of the connecting strips 72, the spherical clamping grooves are embedded into the clamping grooves 74, the clamping strips 73 can be prevented from being separated from the rubber strips 71, the splicing stability is relatively firm, and the; and a compression cavity 8 is formed between the upper end surface and the lower end surface of the connecting strip 72 and the armor layer 5 and the outer protective layer 6, and the compression cavity 8 provides a space for the deformation of the rubber strip 71 and the connecting strip 72, so that the flexibility of the cable is higher.

The elastic layer 7 arranged outside the cable core 1 is mutually connected by traction of a connecting strip 72 between each two rubber strips 71, and the connecting strip 72 is pressed and compressed under the extrusion of the pair of rubber strips 71 while the rubber strips 71 are pressed, flattened and deformed under the action of bending and application of external force; on the contrary, after the rubber strip 71 is bent, the connecting strip 72 pushes the rubber strip 71 to be restored to the initial form through the elasticity of the connecting strip, so that the plasticity is strong, the reshaping capacity is good, the bending degree of the cable can be adjusted at will when the bending state is kept for a long time, the toughness of the cable is further improved, and the service life of the cable is ensured.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A steel wire armored ultra-flexible cable comprising: the cable comprises a plurality of cable cores (1), wherein the cable cores (1) are wrapped with an insulating core layer (2) and a shielding layer (3), and the cable is characterized in that the outer sides of the cable cores (1) are sequentially wrapped with a wrapping layer (4), an armor layer (5) and an outer protective layer (6), and an elastic layer (7) is arranged between the armor layer (5) and the outer protective layer (6);

elastic layer (7) include along a plurality of rubber strip (71) that cable circumference equidistant set up, rubber strip (71) cross-section be circular and its week side with armor (5) outer wall with outer jacket (6) inner wall butt, adjacent two equal elasticity inlays between rubber strip (71) and is equipped with a connecting strip (72).

2. The steel wire armored ultra-soft cable according to claim 1, wherein clamping strips (73) are integrally arranged on both sides of the connecting strip (72), the outer arc cross section of each clamping strip (73) is spherical, and clamping grooves (74) matched with the clamping strips (73) are correspondingly formed in the peripheral sides of the connecting strips (72).

3. A wire-armored ultra-soft cable according to claim 2, wherein the upper and lower end faces of the connecting strip (72) and the armor layer (5) and the outer sheath (6) form a pressure chamber (8) therebetween.

4. A steel wire armored ultra-soft cable according to claim 3, wherein a positioning ring (9) is arranged at the center of the multiple cable cores (1), and the peripheral sides of the cable cores (1) are abutted against the positioning ring (9).

5. The steel wire armored ultra-soft cable according to claim 4, wherein, the four image points on the peripheral side of the positioning ring (9) are respectively extended and fixed with a separating strip (10) for separating the adjacent cable cores (1).

6. The steel wire armored ultra-soft cable according to claim 5, wherein a plurality of grooves (11) are formed at intervals on one side of the four separating strips (10) far away from the positioning ring (9).

7. A wire-armored ultra-flexible cable according to claim 1, wherein the inner side of the insulating core layer (2) and the outer side of the shielding layer (3) are bonded to each other, and the shielding layer (3) is a semi-conductive shielding layer.

8. The steel wire armored ultra-soft cable according to claim 1, wherein the surface of the outer sheath (6) is coated with an anti-aging coating.