CN209015752U - A kind of resistance to compression tensile type cable - Google Patents
A kind of resistance to compression tensile type cable Download PDFInfo
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- CN209015752U CN209015752U CN201821952871.3U CN201821952871U CN209015752U CN 209015752 U CN209015752 U CN 209015752U CN 201821952871 U CN201821952871 U CN 201821952871U CN 209015752 U CN209015752 U CN 209015752U
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Abstract
The utility model discloses a kind of resistance to compression tensile type cables, it is related to the technical field of cable and wire, the outer end of support frame is separately mounted to along the length direction of cable core including several cable cores, the support frame along the extension of cable core length direction and several tension items, several tension items；Support frame outer end is equipped with oversheath, and cavity of several cable cores between support frame and oversheath is interior and the cavity is interior is equipped with filled layer.The utility model has the advantages that stronger crushing resistance and pull resistance simultaneously.
Description
Technical field
The utility model relates to the technical fields of cable and wire, more particularly, to a kind of resistance to compression tensile type cable.
Background technique
With the quickening of the rapid growth of Chinese national economy, especially rural area and Construction of Intercity Network transformation paces and each
Ground real estate flourishes, and the electric utility in China is developed rapidly.Match to push for power industry
Electrician trade, the especially development of wires and cables industry, the Cultivar development of wire and cable shows diversified trend.Electric wire
Cable develops from simple power transmission to multifunction, i.e., has been attached some new spies respectively according to different purposes
Property.Such as: flame retardant cable, fire-resisting cable, low smoke and low halogen cable, low smoke, zero halogen cable etc..It is generally existing for cable at present
Following problems: cable will receive the influence of external various pressure in use, and internal cable core is easy to be extruded cracking, cause
Existing cable core service life is shorter and thereby influences signal and power transmission.
In view of the above-mentioned problems, patent announcement number is the Chinese patent of CN206819778U, propose a kind of with strong resistance to compression
Property cable, including core and cable cover(ing) further include resistance to compression buffer layer, are had in resistance to compression buffer layer multiple for accommodating line
First cavity body structure of core, the core are located in the cavity body structure, and rubber layer is provided on the outside of resistance to compression buffer layer, described anti-
Pressure buffer layer is provided with bulge-structure axially outside, is contacted by the bulge-structure with the rubber layer, outside resistance to compression buffer layer
Elastic space is formed between surface and rubber layer inner surface.
Prior art among the above has the following deficiencies: that the cable passes through metal resistance to compression layer, resistance to compression buffer layer, rubber
Layer and PE filler can alleviate ambient pressure to extruding caused by cable core, prevent cable core from cracking.But these structures
It is more the ability for the pressure that cable is resisted in the radial direction that enhances, and cable is installed due to itself having biggish self weight
When cable interlude can naturally droop that there are biggish tensile stresses to the cable of other sections, therefore be easy to make cable folding, fracture.
Obviously, the cable of strong crushing resistance can not preferably solve tensile stress this problem in above-mentioned technical proposal.
Utility model content
The purpose of the utility model is to provide a kind of resistance to compression tensile type electricity simultaneously with stronger crushing resistance and pull resistance
Cable.
The utility model has the technical scheme that
A kind of resistance to compression tensile type cable, including several cable cores, along the support frame of cable core length direction extension and several
Tension item, several tension items are separately mounted to the outer end of support frame along the length direction of cable core；Support frame outer end is equipped with outer shield
Set, cavity of several cable cores between support frame and oversheath is interior and the cavity is interior is equipped with filled layer.
By using above-mentioned technical proposal, the support frame extended along cable core length direction is played a supporting role in cable,
Improve the overall structural strength of cable；The outer end that tension item is mounted on support frame can be in cable at cable surface, electricity
The pressure of pulling force and outside on cable is acted on first on tension item, and tension item has good resistance to compression pull resistance, thus right
Cable core inside cable plays a good protective effect, and is improved the resistance to compression of cable and tensile capacity all.
Be further arranged to: the center of support frame as described above is equipped with elastic tube, and several cable cores are abutted with elastic tube.
By using above-mentioned technical proposal, the elastic tube at support frame center has certain deformability, when cable core by
When coming tensile stress or pressure, cable core can squeeze elastic tube, so that cable core be made to have certain deformation space, cable core passes through subtle
Deformation eliminate tensile stress and pressure influence, be conducive to the resistance to compression pull resistance for improving cable core itself.
Be further arranged to: the outer end of support frame as described above is integrally formed with clamping strip, and the cross section of the clamping strip is in excellent
Arc and medial surface is bonded with tension lateral circle surface.
By using above-mentioned technical proposal, tension item is mounted in the clamping strip that cross section is in major arc shape and branch by chimeric
Support keeps stable and is fixedly connected, meanwhile, the installation of resistance to compression item is also more convenient, reduces technology difficulty when assembled.
It is further arranged to: being equipped with resistance to compression buffer layer between the filled layer and the oversheath.
By using above-mentioned technical proposal, resistance to compression buffer layer can further be protected the cable core being located in filled layer, be delayed
Extruding and impact of the external pressure to cable core are rushed, to further increase cable crushing resistance.
Be further arranged to: the filled layer is glass layer.
By using above-mentioned technical proposal, glass fibre is higher than organic fiber heatproof, and has non-ignitable, anti-rotten, heat-insulated anti-
The excellent physical properties such as tensile strength is high, electrical insulating property is good are conducive to the rigidity and hardness that enhance cable, keep cable not pliable
It deforms and plays good heat-blocking action.
Be further arranged to: the cable core includes several annealed copper wires and insulating layer, and several annealed copper wires are twisted into core, absolutely
Edge layer is coated on outside core.
By using above-mentioned technical proposal, several annealed copper wires are twisted into core and core are made to have preferable ductility,
To improve the pull resistance of cable core itself；Meanwhile copper wire impedance is supported, and energy loss caused by electric cable heating is advantageously reduced.
Be further arranged to: the surface of outer sheath is coated with antiaging coatings.
By using above-mentioned technical proposal, antiaging coatings are coated on oversheath, oversheath can be improved in antiaging coatings
Uvioresistant and oxidation resistance, improve the weatherability of oversheath.
In conclusion the advantageous effects of the utility model are as follows:
(1) support frame is set in cable and several tension items, support frame provides a supporting role for cable, there is cable
Higher structural strength, tension item then can preferentially bear the tensile stress and external pressure of cable itself, to improve cable
Resistance to compression tensile capacity；
(2) resistance to compression buffer layer is set between filled layer and oversheath, and further absorbing external pressure is to internal cable core
Squeezing action improves the crushing resistance of cable to preferably protect cable core.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of the present embodiment.
Appended drawing reference: 1, cable core；2, support frame；3, tension item；4, oversheath；5, filled layer；6, elastic tube；7, it clamps
Item；8, resistance to compression buffer layer；9, annealed copper wire；10, insulating layer；11, antiaging coatings.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
It referring to Fig.1, is a kind of resistance to compression tensile type cable disclosed by the utility model, including four cable cores 1, long along cable core 1
Spend 2, four tension items 3 of support frame, filled layer 5 and oversheath 4 that direction extends.The cross section of support frame 2 be in cross, four
Tension item 3 is fixed on four ends of support frame 2 along 1 length direction of cable core respectively, and tension item 3 is using the PP material that anti-aging agent is added
Material is made.Oversheath 4 is coated on the outside of four ends of support frame 2, four cable cores 1 be located at support frame 2 and oversheath 4 it
Between in four cavitys being formed, filled layer 5 is filled in the cable surrounding in four cavitys.Support frame 2 plays support in cable
Effect, improves the overall structural strength of cable；The pressure of pulling force and outside on cable is acted on first on tension item 3, thus
It plays a good protective effect to the cable core 1 inside cable, is improved the resistance to compression of cable and tensile capacity all.
The cross searching of support frame 2 extends integrally formed with elastic tube 6, elastic tube 6 along the length direction of cable core 1, and four
The lateral circle surface of cable core 1 is abutted with the lateral circle surface of equal elastic tube 6.Four ends of support frame 2 are integrally formed with clamping strip 7, folder
The cross section of item 7 is held in major arc shape and is open towards 4 side of oversheath.The medial surface of tension item 3 is bonded with 7 lateral circle surface of clamping strip
It is mounted in clamping strip 7 to chimeric.Tension item 3 keeps stable fixation with support frame 2 by chimeric be mounted in clamping strip 7
Connection, meanwhile, technique when to 2 over-assemble tension item 3 of support frame is simpler, is easier to realize efficient production.
Resistance to compression buffer layer 8 is compounded between filled layer 5 and oversheath 4.Resistance to compression buffer layer 8 uses silastic material or sponge
It is made, filled layer 5 is glass layer.Cable core 1 includes four annealed copper wires 9 and insulating layer 10, and four annealed copper wires 9 are twisted into line
Core, insulating layer 10 are coated on outside core, and insulating layer 10 is made of PVC material.4 surface of oversheath is coated with antiaging coatings
11, oversheath 4 is made of the compound body of weatherability PVC material, rubber material or PVC and rubber material, antiaging coatings 11
Middle addition UV resistant agent and antiozonant extend cable service life to prevent 4 aging of oversheath.
It the implementation principle of the present embodiment and has the beneficial effect that support frame 2 and four tension items 3 is set in cable, support
Frame 2 provides a supporting role for cable, and cable is made to have higher structural strength, and tension item 3 then can preferentially bear cable itself
Tensile stress and external pressure, to improve the resistance to compression tensile capacity of cable.
The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this
The protection scope of type, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by practical
Within novel protection scope.
Claims (7)
1. a kind of resistance to compression tensile type cable, it is characterised in that: extend including several cable cores (1), along cable core (1) length direction
Support frame (2) and several tension items (3), several tension items (3) are separately mounted to support frame along the length direction of cable core (1)
(2) outer end；Support frame (2) outer end is equipped with oversheath (4), several cable cores (1) be located at support frame (2) and oversheath (4) it
Between cavity in and the cavity in be equipped with filled layer (5).
2. resistance to compression tensile type cable according to claim 1, it is characterised in that: the center of support frame as described above (2) is equipped with bullet
Property pipe (6), several cable cores (1) abut with elastic tube (6).
3. resistance to compression tensile type cable according to claim 1 or 2, it is characterised in that: the outer end one of support frame as described above (2)
It forms clamping strip (7), the cross section of the clamping strip (7) is bonded in major arc shape and medial surface with tension item (3) lateral circle surface.
4. resistance to compression tensile type cable according to claim 1, it is characterised in that: the filled layer (5) and the oversheath
(4) resistance to compression buffer layer (8) are equipped between.
5. resistance to compression tensile type cable according to claim 1, it is characterised in that: the filled layer (5) is glass layer.
6. resistance to compression tensile type cable according to claim 4 or 5, it is characterised in that: the cable core (1) includes several soft
Copper wire (9) and insulating layer (10), several annealed copper wires (9) are twisted into core, and insulating layer (10) is coated on outside core.
7. resistance to compression tensile type cable according to claim 1 or 4, it is characterised in that: oversheath (4) surface is coated with
Antiaging coatings (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821952871.3U CN209015752U (en) | 2018-11-24 | 2018-11-24 | A kind of resistance to compression tensile type cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821952871.3U CN209015752U (en) | 2018-11-24 | 2018-11-24 | A kind of resistance to compression tensile type cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209015752U true CN209015752U (en) | 2019-06-21 |
Family
ID=66843108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821952871.3U Active CN209015752U (en) | 2018-11-24 | 2018-11-24 | A kind of resistance to compression tensile type cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209015752U (en) |
-
2018
- 2018-11-24 CN CN201821952871.3U patent/CN209015752U/en active Active
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