CN211427909U - Polyvinyl chloride power cable - Google Patents
Polyvinyl chloride power cable Download PDFInfo
- Publication number
- CN211427909U CN211427909U CN201922082124.XU CN201922082124U CN211427909U CN 211427909 U CN211427909 U CN 211427909U CN 201922082124 U CN201922082124 U CN 201922082124U CN 211427909 U CN211427909 U CN 211427909U
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- Prior art keywords
- side wall
- support column
- cable
- arc
- polyvinyl chloride
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- 229920000915 polyvinyl chloride Polymers 0.000 title claims abstract description 18
- 239000004800 polyvinyl chloride Substances 0.000 title claims abstract description 18
- 230000008093 supporting effect Effects 0.000 claims abstract description 53
- 238000005253 cladding Methods 0.000 claims abstract description 4
- 238000001125 extrusion Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 22
- 239000004020 conductor Substances 0.000 description 6
- 239000011241 protective layer Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The utility model relates to a technical field of cable discloses a polyvinyl chloride power cable, including heart yearn and cladding insulating layer outside the heart yearn, insulating intraformational middle part is equipped with the support column of deformability, the circumference interval is equipped with the triangular groove on the lateral wall that the support column is cylindrical and support column, the heart yearn butt in the lateral wall of support column. The utility model has the advantages of it is following and effect: the support column plays a role in supporting the cable; the supporting column is cylindrical, so that the inner core wire is prevented from being worn by edges and corners when the supporting column is square; the setting of triangular groove provides bigger space for the deformation of support column, and when extruding the support column behind the heart yearn atress, the triangular groove department can be extruded to the support column to improve the holding capacity of support column, be favorable to improving the crushing resistance of cable, easy nature or the problem of disconnected core when avoiding the cable extrusion, make the cable have high reliability.
Description
Technical Field
The utility model belongs to the technical field of the technique of cable and specifically relates to a polyvinyl chloride power cable is related to.
Background
A power cable is a cable for transmitting and distributing electric energy, and has wide applications in the communication industry, the automobile industry, the power industry, and the like. A cable generally comprises, from the inside to the outside, a conductor, an insulating layer and a protective layer for protecting the conductor as well as the insulating layer. The cable generally adopts polyvinyl chloride with flame retardant effect as a protective layer and an insulating layer.
At present, the patent with publication number CN202871341U discloses a four-core cable, which comprises conductors, insulating layers and an outer protective layer, wherein the conductors are all wrapped with insulating layers, the conductors and the insulating layers are combined into cable cores, four cable cores are arranged inside the four-core cable, the four cable cores are arranged in parallel to form a square, and the outer protective layer is composed of a polyvinyl chloride layer, a polyester fiber layer and a polyvinyl chloride layer from inside to outside.
The existing cable is generally weak in anti-extrusion performance, and is easily deformed by being extruded and bent under the action of external stress, so that the temperature of a cable conductor is concentrated in a certain area, the local temperature of the cable is too high, the normal communication of the cable is influenced, and the problem of core breaking is possibly caused by excessive bending, so that the improvement is needed.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a polyvinyl chloride power cable, changeability or the problem of disconnected core when can avoiding the cable extrusion makes the cable have high reliability.
The above object of the present invention can be achieved by the following technical solutions:
the utility model provides a polyvinyl chloride power cable, includes heart yearn and cladding insulating layer outside the heart yearn, the middle part in the insulating layer is equipped with the support column of deformability, the support column is cylindrical and the lateral wall of support column on the circumference interval be equipped with the triangular groove, the heart yearn butt in the lateral wall of support column.
By adopting the technical scheme, the supporting column is used for supporting the cable; the supporting column is cylindrical, so that the inner core wire is prevented from being worn by edges and corners when the supporting column is square; the setting of triangular groove provides bigger space for the deformation of support column, and when extruding the support column behind the heart yearn atress, the triangular groove department can be extruded to the support column to improve the holding capacity of support column, be favorable to improving the crushing resistance of cable, easy nature or the problem of disconnected core when avoiding the cable extrusion, make the cable have high reliability.
The present invention may be further configured in a preferred embodiment as: the side wall of the supporting column is provided with a deformable abutting plate inserted in the triangular groove, and the cross section of the abutting plate is triangular matched with the triangular groove.
Through adopting above-mentioned technical scheme, the cross-section is triangle-shaped's butt plate pegs graft in triangular groove department, can play reverse supporting role to the triangular groove of deformation, makes deformation can take place on the one hand from this, and on the other hand can avoid the excessive deformation of triangular groove again.
The present invention may be further configured in a preferred embodiment as: an extension plate is formed on one side wall of the joint of the abutting plate and the support arc-shaped belt in an extending mode, and a connecting plate is formed on the other side wall of the joint of the abutting plate and the support arc-shaped belt in an extending mode, wherein the other side wall of the joint of the abutting plate and the support arc-shaped belt is opposite to the extension plate in an extending mode; the extension plate and the connecting plate are tightly attached to the outer side wall of the supporting column; the side wall of the extension plate is provided with a slot, the side wall of the connecting plate is fixed with an inserting sheet, and the inserting sheet on the connecting plate is inserted into the slot on the adjacent extension plate.
Through adopting above-mentioned technical scheme, extension board and adjacent connecting plate meet, realize the stable installation of butt joint board on the support column through the grafting of inserted sheet and corresponding slot.
The present invention may be further configured in a preferred embodiment as: the outer side of the abutting plate is integrally formed with a supporting arc-shaped belt, and two side walls of the supporting arc-shaped belt are in an outward convex arc shape and are abutted to corresponding positions of the side walls of the core wires.
Through adopting above-mentioned technical scheme, the arc lateral wall that the evagination was gone up to the support arc is reverse setting with the lateral wall of heart yearn, forms the strong point to when the heart yearn was extrudeed, the reaction force through supporting the arc area played the supporting role.
The present invention may be further configured in a preferred embodiment as: the support arc belt is integrally formed with a filling belt, and the side wall of the filling belt abuts against the corresponding position of the side wall of the core wire.
Through adopting above-mentioned technical scheme, fill the area and fill the space between the adjacent heart yearn, play stable supporting role to the insulating layer.
The present invention may be further configured in a preferred embodiment as: the side wall of the filling belt close to the inner side wall of the insulating layer is arc-shaped and matched with the inner side wall of the insulating layer.
Through adopting above-mentioned technical scheme, form on the filling belt with insulating layer inside wall complex arc, make bearing structure more reasonable.
The present invention may be further configured in a preferred embodiment as: the side wall of the filling belt forms an inwards concave arc shape matched with the side wall of the core wire.
Through adopting above-mentioned technical scheme, the lateral wall in area of filling forms the indent arc, for the extrusion of heart yearn provides the holding surface, plays dual supporting role with the strong point that supports the arc area, strengthens the compressive property of cable from this, improves the reliability.
The present invention may be further configured in a preferred embodiment as: the core wire may abut on the corresponding connection plate and extension plate.
Through adopting above-mentioned technical scheme, heart yearn butt in connecting plate and extension board, and the both sides wall of heart yearn butt respectively in corresponding packing area and support the arc area, make the structure in the insulating layer compacter from this, be favorable to further improving the crushing resistance of cable.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the support column plays a role in supporting the cable; the triangular groove is arranged to provide a larger space for the deformation of the supporting column, and when the supporting column is extruded after the core wire is stressed, the supporting column can extrude the triangular groove, so that the bearing capacity of the supporting column is improved, the improvement of the pressure resistance of the cable is facilitated, the problem of easy deformation or core breakage of the cable during extrusion is avoided, and the cable has high reliability;
2. the arc-shaped side wall protruding outwards from the supporting arc-shaped belt and the side wall of the core wire are arranged in a reverse direction to form a supporting point, the side wall of the filling belt forms an inwards concave arc shape to provide a supporting surface for the extrusion of the core wire, and the filling belt and the supporting point of the supporting arc-shaped belt play a dual supporting role, so that the compression resistance of the cable is enhanced, and the reliability is improved;
3. the core wire is abutted to the connecting plate and the extending plate, and two side walls of the core wire are respectively abutted to the corresponding filling belt and the supporting arc-shaped belt, so that the structure in the insulating layer is more compact, and the pressure resistance of the cable is further improved.
Drawings
Fig. 1 is a cross-sectional schematic view of a cross section of the cable of the present embodiment;
FIG. 2 is an enlarged partial schematic view of portion A of FIG. 1;
fig. 3 is a partially enlarged schematic view of a portion B in fig. 1.
Reference numerals: 1. a core wire; 2. an insulating layer; 3. a support pillar; 31. a triangular groove; 4. a butt joint plate; 41. an extension plate; 411. a slot; 42. a connecting plate; 421. inserting sheets; 5. supporting the arc-shaped belt; 6. and (4) filling the belt.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, for the utility model discloses a polyvinyl chloride power cable, including heart yearn 1 and cladding insulating layer 2 outside heart yearn 1, middle part in insulating layer 2 is equipped with and is columniform support column 3, and support column 3 is deformable's rubber materials, plays stable supporting role to the middle part of cable through support column 3, is favorable to improving the compressive capacity of cable.
As shown in fig. 1 and 2, four triangular grooves 31 are circumferentially and equidistantly formed in the side wall of the supporting column 3, when the cable is extruded, the core wire 1 can abut against the side wall of the supporting column 3, and at the moment, the triangular grooves 31 provide a deformation space for the supporting column 3, so that the force of the core wire 1 is transferred to the triangular grooves 31 of the supporting column 3, and a dispersing effect is achieved.
As shown in fig. 2, be equipped with the butt plate 4 of pegging graft in triangular groove 31 on the lateral wall of support column 3, and the cross-section of butt plate 4 is triangle-shaped with triangular groove 31 complex, and butt plate 4 is deformable's rubber materials to receive the extrusion when the lateral wall of support column 3, the butt plate 4 that is located triangular groove 31 can play the supporting role on the one hand, and on the other hand can produce deformation, avoids the damage of butt plate 4.
As shown in fig. 1 and 2, the outside integrated into one piece of butt plate 4 has support arc area 5, and the both sides wall that supports arc area 5 is the arc of evagination, and the arc line of evagination corresponds department looks butt with the lateral wall of heart yearn 1, makes support arc area 5 and the lateral wall of heart yearn 1 be reverse arc, forms the strong point to when heart yearn 1 is extrudeed, through the reaction force that supports arc area 5 play the supporting role.
As shown in fig. 1 and 3, an extension plate 41 is formed by extending one side wall of the joint of the abutting plate 4 and the supporting arc-shaped belt 5, a connecting plate 42 is formed by extending the other side wall of the joint of the abutting plate 4 and the supporting arc-shaped belt 5 opposite to the extension plate 41, the extension plate 41 and the connecting plate 42 are both tightly attached to the outer side wall of the supporting column 3, the core wire 1 can abut against the corresponding connecting plate 42 and the extension plate 41, when the core wire 1 is squeezed, the extension plate 41 and the connecting plate 42 are more tightly attached to the supporting column 3, and the structure is more stable.
As shown in fig. 3, the extension plate 41 is formed with a slot 411 toward the middle of the side wall of the corresponding adjacent connection plate 42, the connection plate 42 is fixed with a tab 421 toward the middle of the side wall of the extension plate 41 on the adjacent abutting plate 4, and the tab 421 on the connection plate 42 is inserted into the slot 411 on the adjacent extension plate 41, so that the abutting plate 4 can be stably mounted on the supporting column 3 by the connection of the extension plate 41 and the corresponding connection plate 42.
As shown in fig. 1, a filling belt 6 is integrally formed on the supporting arc belt 5, the side wall of the filling belt 6 close to the inner side wall of the insulating layer 2 is arc-shaped and matched with the inner side wall of the insulating layer 2, gaps between adjacent core wires 1 are filled, a supporting effect is achieved, and the arc-shaped arrangement is more reasonable; the two side walls of the filler strip 6 form concave arcs that fit the side walls of the core 1, thereby providing a support surface for the extrusion of the core 1.
The implementation principle of the embodiment is as follows:
when the cable is extruded, the filling belt 6 and the supporting column 3 play a main supporting role, and when the triangular groove 31 deforms, the abutting plate 4 plays a role in supporting and blocking deformation; when the core wire 1 is extruded, on one hand, the supporting points of the core wire 1 and the supporting arc-shaped belt 5 and the supporting surfaces of the core wire 1 and the filling belt 6 play a double supporting role, so that the pressure resistance of the cable is enhanced, and the reliability is improved.
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 (8)
1. The utility model provides a polyvinyl chloride power cable, includes heart yearn (1) and cladding insulating layer (2) outside heart yearn (1), its characterized in that: the middle part in insulating layer (2) is equipped with deformable's support column (3), support column (3) are cylindrical and support column (3) on the lateral wall circumference interval be equipped with triangular groove (31), heart yearn (1) butt in the lateral wall of support column (3).
2. A polyvinyl chloride power cable according to claim 1, characterized in that: the side wall of the supporting column (3) is provided with a deformable abutting plate (4) which is inserted into the triangular groove (31), and the cross section of the abutting plate (4) is triangular which is matched with the triangular groove (31).
3. A polyvinyl chloride power cable according to claim 2, characterized in that: an extension plate (41) is formed on one side wall of the joint of the abutting plate (4) and the support arc-shaped belt (5) in an extending mode, a connecting plate (42) is formed on the joint of the abutting plate (4) and the support arc-shaped belt (5) in an extending mode and the other side wall opposite to the extension plate (41) in an extending mode; the extension plate (41) and the connecting plate (42) are tightly attached to the outer side wall of the support column (3); the side wall of the extension plate (41) is provided with a slot (411), the side wall of the connecting plate (42) is fixed with an inserting sheet (421), and the inserting sheet (421) on the connecting plate (42) is inserted into the slot (411) on the adjacent extension plate (41).
4. A polyvinyl chloride power cable according to claim 3, characterized in that: the outer side of the abutting plate (4) is integrally formed with a supporting arc-shaped belt (5), and two side walls of the supporting arc-shaped belt (5) are in outward convex arc shapes and are abutted to corresponding positions of the side walls of the core wires (1).
5. A polyvinyl chloride power cable according to claim 4, characterized in that: the support arc-shaped belt (5) is integrally formed with a filling belt (6), and the side wall of the filling belt (6) abuts against the corresponding position of the side wall of the core wire (1).
6. A polyvinyl chloride power cable according to claim 5, characterized in that: the side wall of the filling belt (6) close to the inner side wall of the insulating layer (2) is arc-shaped and matched with the inner side wall of the insulating layer (2).
7. A polyvinyl chloride power cable according to claim 5, characterized in that: the side wall of the filling belt (6) forms an inward arc matched with the side wall of the core wire (1).
8. A polyvinyl chloride power cable according to claim 3, characterized in that: the core wire (1) can abut on the corresponding connecting plate (42) and extension plate (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922082124.XU CN211427909U (en) | 2019-11-27 | 2019-11-27 | Polyvinyl chloride power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922082124.XU CN211427909U (en) | 2019-11-27 | 2019-11-27 | Polyvinyl chloride power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211427909U true CN211427909U (en) | 2020-09-04 |
Family
ID=72245769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922082124.XU Active CN211427909U (en) | 2019-11-27 | 2019-11-27 | Polyvinyl chloride power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211427909U (en) |
-
2019
- 2019-11-27 CN CN201922082124.XU patent/CN211427909U/en active Active
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