CN216119599U - Environment-friendly B1-grade high-performance flame-retardant cable - Google Patents
Environment-friendly B1-grade high-performance flame-retardant cable Download PDFInfo
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- CN216119599U CN216119599U CN202122547799.4U CN202122547799U CN216119599U CN 216119599 U CN216119599 U CN 216119599U CN 202122547799 U CN202122547799 U CN 202122547799U CN 216119599 U CN216119599 U CN 216119599U
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Abstract
The utility model relates to a high performance flame retarded cable of environment-friendly B1 level especially relates to the cable field, and it includes that sinle silk and cover establish the fire-retardant sheath outside the sinle silk, and fire-retardant sheath is provided with the outer jacket outward, and the outer jacket is formed by the flexonics board roll package, and the correspondence of flexonics board length direction's both sides is provided with first connecting portion and second connecting portion that can joint each other. This application has reduced the waste to the wire rod when changing the maintenance to the cable through setting up the detachable outer jacket, has energy-concerving and environment-protective effect.
Description
Technical Field
The application relates to the field of cables, in particular to an environment-friendly B1-grade high-performance flame-retardant cable.
Background
The cable is a carrier for power or signal transmission and has wide application in daily life. If the cable is improperly used, or damaged or aged, fire disasters are easily caused, so that the flame-retardant cable with high flame retardant performance is generally adopted in stations, subways, markets, high-rise buildings and other places. The flame-retardant cable can be classified into A, B, C grades according to the flame-retardant grade, and the flame-retardant cable used in the places mostly adopts a B grade flame-retardant cable, especially a B1 grade flame-retardant cable.
The chinese utility model patent document with application number 201922288535.4 discloses an environment-friendly B1-grade high-performance flame-retardant cable, which comprises a cable bundle consisting of a plurality of closely arranged cables side by side, wherein the cable consists of a plurality of wires and an insulating layer wrapped outside the wires; the cable is filled with flame retardant, an oxygen-isolating inner protective layer is arranged on the outer side of the cable bundle, an interlocking galvanized steel strip armor layer is arranged on the outer side of the oxygen-isolating inner protective layer, and a high-flame-retardant sheath layer is arranged on the outer side of the interlocking galvanized steel strip armor layer; the oxygen-isolating inner protection layer is a sleeve-shaped isolation layer which is made of low-smoke halogen-free materials and extruded and formed on the outer side of the cable bundle; the high flame-retardant sheath layer is a sleeved flame-retardant protective layer which is made of a low-smoke halogen-free material and is extruded and formed on the outer side of the interlocking galvanized steel strip armor layer.
In view of the above related technologies, the inventor believes that the flame-retardant cable is prone to aging and deformation after being used for a long time, and at this time, the whole cable needs to be replaced, but the problem of large extra loss exists in the whole replacement, and resource waste is caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem of resource waste caused by cable replacement, the application provides an environment-friendly B1-grade high-performance flame-retardant cable.
The application provides an environment-friendly B1 level high performance flame retardant cable, adopts the following technical scheme:
environment-friendly B1 high-performance flame-retardant cable comprises a wire core and a flame-retardant protective layer sleeved outside the wire core, wherein an outer protective layer is arranged outside the flame-retardant protective layer and is formed by a flexible board in a rolling mode, and a first connecting portion and a second connecting portion which can be mutually clamped are correspondingly arranged on two sides of the flexible board in the length direction.
Through adopting above-mentioned technical scheme for the outer jacket can replace fire-retardant sheath and regard as the outmost of cable, thereby protects the material of inside. After the outer protective layer is aged and deformed after being used for a long time, the outer protective layer which is aged and deformed is disassembled from the connecting part of the first connecting part and the second connecting part, then the outer protective layer is stripped from the flame-retardant protective layer, and finally a new outer protective layer is replaced. Because the outer jacket is detachable structure for it need not change whole fire-retardant sheath when outmost taking place to age, but only need change the outer jacket can, thereby the waste of material when having reduced the change.
Optionally, the outer jacket is made of flame retardant rubber.
Through adopting above-mentioned technical scheme for the outer jacket has certain fire behaviour, has promoted the fire behavior of cable, makes the cable safer when using.
Optionally, the first connecting portion and the second connecting portion are both arranged in an inverted L shape.
Through adopting above-mentioned technical scheme, but second connecting portion through pressing the joint on first connecting portion for more convenient and fast when changing the outer jacket is dismantled.
Optionally, the first connecting portion include first linkage segment and pass through first linkage segment connects the first hooking section on the flexible board, the second connecting portion include the second linkage segment and pass through the second linkage segment is connected the second hooking section on the flexible board, the second hooking section is kept away from be provided with the card strip on the lateral wall of second linkage segment, set up on the lateral wall that the flexible board is relative with first hooking section be used for with card strip joint complex joint groove.
Through adopting above-mentioned technical scheme for first connecting portion and second connecting portion joint are more firm, have further promoted the stability of first connecting portion and second connecting portion joint, make the outer jacket better to the cladding effect of cable.
Optionally, the inside of first connecting portion and second connecting portion all inlays the design piece that is equipped with the cross sectional shape for the L type, the design piece includes the first design portion and the second design portion of a body coupling, first design portion inlays to be established in the first hooking section or the second hooking section that correspond, second design portion inlays to be established in the first connecting section or the second connecting section that correspond.
Through adopting above-mentioned technical scheme, strengthened the anti deformability of first connecting portion and second connecting portion, made first connecting portion and second connecting portion be difficult for dragging the deformation when the joint state, maintained stable joint relation to it is more stable to make the outer jacket cladding to flame retarded cable.
Optionally, the cross section of the first connecting portion is set to be T-shaped, and the second connecting portion is provided with a T-shaped clamping groove for clamping the first connecting portion.
Through adopting above-mentioned technical scheme, the first connecting portion of T type can insert and the joint is in the T type draw-in groove of second connecting portion for first connecting portion and second connecting portion can be more convenient carry out the joint, the operation of being convenient for.
Optionally, the flame-retardant protective layer includes a semiconductor layer, an insulating layer, a metal shielding layer and a flame-retardant protective layer, which are sequentially arranged from inside to outside.
By adopting the technical scheme, the semiconductor layer can reduce the possibility of generating partial discharge around the wire core due to uneven surface of the wire core, the insulating layer can physically isolate the wire core from the outside, potential safety hazards such as electric leakage are reduced, the metal shielding layer sleeved outside the insulating layer can reduce the influence of a magnetic field generated by current flowing in the wire core on the outside, the flame-retardant protective layer gives the flame-retardant property of the cable, and the safety coefficient of the cable is improved.
Optionally, an armor layer is disposed between the metal shielding layer and the flame-retardant protective layer.
By adopting the technical scheme, the tensile strength and the compressive strength of the flame-retardant cable are enhanced, and the service life of the flame-retardant cable is prolonged.
Optionally, an oxygen barrier layer is arranged between the metal shielding layer and the armor layer.
Through adopting above-mentioned technical scheme, can be isolated outside oxygen at isolating, reduced the oxidation of isolating inside semiconductor layer, insulating layer and the metal shielding layer in oxygen layer, prolonged life.
Optionally, a flame-retardant glass fiber layer is arranged between the armor layer and the flame-retardant protective layer.
Through adopting above-mentioned technical scheme, fire-retardant glass fiber layer can further the flame retardant efficiency of reinforcing cable to reduce the influence that interior material received the conflagration.
In summary, the present application includes at least one of the following beneficial technical effects:
the outer protective layer arranged outside the flame-retardant protective layer can replace the flame-retardant protective layer to serve as the outermost layer of the cable, so that the inner material is protected. After the outer protective layer is aged and deformed after being used for a long time, the outer protective layer which is aged and deformed is disassembled from the connecting part of the first connecting part and the second connecting part, then the outer protective layer is stripped from the flame-retardant protective layer, and finally a new outer protective layer is replaced. The outer protection layer is of a detachable structure, so that the whole flame-retardant protective layer does not need to be replaced when the outermost layer is aged, and only the outer protection layer needs to be replaced, so that the waste of materials during replacement is reduced;
the side wall of the second hooking section, which is far away from the second connecting section, is provided with the clamping strip, and the side wall of the flexible board, which is opposite to the first hooking section, is provided with the clamping groove for clamping and matching with the clamping strip, so that the clamping strip can be clamped with the clamping groove while the first connecting part and the second connecting part are clamped, the clamping of the first connecting part and the second connecting part is firmer, the clamping stability of the first connecting part and the second connecting part is further improved, and the coating effect of the outer protective layer on the cable is better;
inlay the stereotype piece of establishing in first connecting portion and second connecting portion, strengthened the anti deformability of first connecting portion and second connecting portion, make first connecting portion and second connecting portion be difficult for dragging the deformation when the joint state, maintained stable joint relation to it is more stable to make the outer jacket cladding to flame retarded cable.
Drawings
Fig. 1 is a cross-sectional view of an environment-friendly B1-grade high-performance flame-retardant cable in this embodiment.
Fig. 2 is a schematic structural view of the first connection portion and the second connection portion in embodiment 1.
Fig. 3 is a schematic structural view of the first connection portion and the second connection portion in embodiment 2.
Reference numerals: 1. a wire core; 2. a flame retardant sheath; 21. a semiconductor layer; 22. an insulating layer; 23. a metal shielding layer; 24. an oxygen barrier layer; 25. an armor layer; 26. a flame retardant fiberglass layer; 27. a flame retardant protective layer; 3. an outer jacket; 31. a first connection portion; 311. a first hooking section; 312. a first connection section; 313. a T-shaped connecting part; 3131. a vertical connecting section; 3132. a transverse clamping section; 32. a second connecting portion; 321. a second hooking section; 3211. clamping the strip; 322. a second connection section; 323. a T-shaped clamping groove; 33. a clamping groove; 4. shaping sheets; 41. a first molding section; 42. a second shaping part.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses an environment-friendly B1-grade high-performance flame-retardant cable.
Example 1
Referring to fig. 1, the environment-friendly type B1 high-performance flame-retardant cable comprises a cable and an outer protective layer 3 sleeved outside the cable, wherein the cable comprises a wire core 1 and a flame-retardant protective layer 2 which are sequentially sleeved from inside to outside.
Referring to fig. 1, the flame-retardant sheath 2 includes a semiconductor layer 21, an insulating layer 22, a metal shielding layer 23, an oxygen-isolating layer 24, an armor layer 25, a flame-retardant glass fiber layer 26 and a flame-retardant protective layer 27 which are sequentially sleeved from inside to outside, wherein the semiconductor layer 21 is made of monocrystalline silicon, the insulating layer 22 is made of composite rubber, the metal shielding layer 23 is formed by winding a copper strip, the oxygen-isolating layer 24 is made by winding a fire-resistant mica tape, the armor layer 25 is made by weaving a plurality of low-carbon steel strips, and the flame-retardant glass fiber layer 26 is formed by winding a glass fiber tape.
Referring to fig. 1, the outer jacket 3 is sleeved outside the flame-retardant protective layer 27 and is formed by wrapping a flexible board, the flexible board is made of rubber, the two sides of the flexible board in the length direction correspond to a first connecting portion 31 and a second connecting portion 32 which can be clamped with each other, the first connecting portion 31 and the second connecting portion 32 are inverted L-shaped, the first connecting portion 31 includes a first connecting section 312 and a first hooking section 311 connected to the flexible board through the first connecting section 312, and the second connecting portion 32 includes a second connecting section 322 and a second hooking section 321 connected to the flexible board through the second connecting section 322.
Referring to fig. 1 and 2, in order to enhance the deformation resistance of the first connecting portion 31 and the second connecting portion 32, the first connecting portion 31 and the second connecting portion 32 are not easily pulled to deform in a clamping state, the first connecting portion 31 and the second connecting portion 32 are both embedded with the shaping sheet 4 having an L-shaped cross section, the L-shaped shaping sheet 4 includes a first shaping portion 41 and a second shaping portion 42 which are integrally connected, the first shaping portion 41 is embedded in the corresponding first hooking section 311 or second hooking section 321, and the second shaping portion 42 is embedded in the corresponding first connecting section 312 or second connecting section 322.
Referring to fig. 2, in order to enhance the stability of the first connection portion 31 and the second connection portion 32 when being clamped, a clamping strip 3211 is adhered to the side wall of the second hooking section 321 away from the second connection portion 322, and a clamping groove 33 for clamping and matching with the clamping strip 3211 is formed in the side wall of the flexible board opposite to the first hooking section 311.
The implementation principle of the embodiment 1 is as follows: when the cable is aged and deformed, the second connecting portion 32 is pulled in a direction away from the cable, so that the joint of the first connecting portion 31 and the second connecting portion 32 is separated from the clamped state, and then the outer sheath 3 is peeled off from the cable. Roll up the cladding with new outer jacket 3 outside fire-retardant protective layer 27 again, impress second hook joint section 321 in by the flexible sheet, in the channel that first connecting portion 31 and first hook joint portion constitute jointly, make second connecting portion 32 insert and the joint in first connecting portion 31, card strip 3211 also inserts and the joint in joint groove 33 this moment to make first connecting portion 31 and the mutual chucking of second connecting portion 32, realized the dismantlement and the change of outer jacket 3.
Example 2
Referring to fig. 3, the present embodiment is different from embodiment 1 in that: first connecting portion 31 sets up to T type connecting portion 313 for the cross-section is the T type, and T type connecting portion 313 includes vertical linkage section 3131 and horizontal joint section 3132 of integrated connection, and vertical linkage section 3131's one end and flexplate integrated connection, the middle part at horizontal joint section 3132 is connected to the other end of vertical linkage section 3131, offers the T type draw-in groove 323 that is used for with horizontal joint section 3132 joint on the second connecting portion 32.
The implementation principle of the embodiment 2 is as follows: when the cable is aged and deformed, the first connection portion 31 is pulled in a direction away from the second connection portion 32, the T-shaped connection portion 313 is separated from the T-shaped engagement groove 323, the first connection portion 31 and the second connection portion 32 are separated, and the outer sheath 3 is peeled off from the cable. And then, the new outer protective layer 3 is curled to wrap the protective layer, the T-shaped connecting part 313 is pressed into the T-shaped clamping groove 323, and the transverse clamping section 3132 is clamped with the T-shaped clamping groove 323, so that the first connecting part 31 and the second connecting part 32 are clamped with each other, and the outer protective layer 3 is detached and replaced.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. Environment-friendly B1 high-performance flame-retardant cable comprises a cable core (1) and a flame-retardant sheath (2) sleeved outside the cable core (1), and is characterized in that: outer jacket (3) are provided with outward to fire-retardant sheath (2), outer jacket (3) are formed by the flexonics board wraparound, the both sides correspondence of flexonics board length direction is provided with first connecting portion (31) and second connecting portion (32) that can joint each other.
2. The environment-friendly type B1 grade high-performance flame-retardant cable according to claim 1, wherein: the outer protective layer (3) is made of flame-retardant rubber.
3. The environment-friendly type B1 grade high-performance flame-retardant cable according to claim 1, wherein: the first connecting portion (31) and the second connecting portion (32) are both arranged in an inverted L shape.
4. The environment-friendly type B1 grade high-performance flame-retardant cable according to claim 3, wherein: first connecting portion (31) include first linkage segment (312) and pass through first linkage segment (311) of connecting on the flexbile plate in first linkage segment (312), second connecting portion (32) include second linkage segment (322) and pass through second linkage segment (322) connect second hook segment (321) on the flexbile plate, second hook segment (321) are kept away from be provided with card strip (3211) on the lateral wall of second linkage segment (322), seted up on the relative lateral wall of flexbile plate and first hook segment (311) be used for with card strip (3211) joint complex joint groove (33).
5. The environment-friendly type B1 grade high-performance flame-retardant cable according to claim 4, wherein: the inside of first connecting portion (31) and second connecting portion (32) all inlays and is equipped with design piece (4) that cross sectional shape is the L type, design piece (4) first design portion (41) and second design portion (42) including a body coupling, first design portion (41) are inlayed and are established in first coupling section (311) or second coupling section (321) that correspond, second design portion (42) are inlayed and are established in first coupling section (312) or second coupling section (322) that correspond.
6. The environment-friendly type B1 grade high-performance flame-retardant cable according to claim 1, wherein: the cross section of the first connecting portion (31) is T-shaped, and a T-shaped clamping groove (323) used for clamping the first connecting portion (31) is formed in the side wall of the second connecting portion (32).
7. The environment-friendly type B1 grade high-performance flame-retardant cable according to claim 1, wherein: the flame-retardant protective layer (2) comprises a semiconductor layer (21), an insulating layer (22), a metal shielding layer (23) and a flame-retardant protective layer (27) which are sequentially arranged from inside to outside.
8. The environment-friendly type B1 grade high-performance flame-retardant cable according to claim 7, wherein: an armor layer (25) is arranged between the metal shielding layer (23) and the flame-retardant protective layer (27).
9. The environment-friendly type B1 grade high-performance flame-retardant cable according to claim 8, wherein: an oxygen isolation layer (24) is arranged between the metal shielding layer (23) and the armor layer (25).
10. The environment-friendly type B1 grade high-performance flame-retardant cable according to claim 8, wherein: and a flame-retardant glass fiber layer (26) is arranged between the armor layer (25) and the flame-retardant protective layer (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122547799.4U CN216119599U (en) | 2021-10-21 | 2021-10-21 | Environment-friendly B1-grade high-performance flame-retardant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122547799.4U CN216119599U (en) | 2021-10-21 | 2021-10-21 | Environment-friendly B1-grade high-performance flame-retardant cable |
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| Publication Number | Publication Date |
|---|---|
| CN216119599U true CN216119599U (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122547799.4U Active CN216119599U (en) | 2021-10-21 | 2021-10-21 | Environment-friendly B1-grade high-performance flame-retardant cable |
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| CN (1) | CN216119599U (en) |
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- 2021-10-21 CN CN202122547799.4U patent/CN216119599U/en active Active
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