CN209929017U - High-elastic cable of resistance to compression based on polyurethane - Google Patents
High-elastic cable of resistance to compression based on polyurethane Download PDFInfo
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- CN209929017U CN209929017U CN201920625957.3U CN201920625957U CN209929017U CN 209929017 U CN209929017 U CN 209929017U CN 201920625957 U CN201920625957 U CN 201920625957U CN 209929017 U CN209929017 U CN 209929017U
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Abstract
The utility model provides a compression-resistant high-elasticity cable based on polyurethane, which comprises a cable layer, wherein a slow rebound layer, a compression-resistant layer and an elastic layer are sequentially arranged on the outer side of the cable layer; the inner wall of the elastic layer is provided with an adjusting column; the adjusting column extends into the pressure-resistant layer; the adjusting column comprises a diameter gradual change section; the small end of the adjusting column faces the pressure resistant layer; the compression-resistant layer comprises an inner ring, an outer ring and a connecting spring which are arranged from inside to outside in sequence; two ends of the connecting spring are respectively arranged on the outer wall of the inner ring and the inner wall of the outer ring; a first fracture is arranged on the outer ring; the first fracture is in contact with the adjustment column. The utility model has the advantages that: the outer ring is expanded, and the expansion deformation of the outer ring relieves most of external pressure; the outer ring pulls the connecting spring to move outwards, the outer ring extrudes the elastic substance, and the inner ring has a movement trend away from the chronic rebound layer, so that the cable layer is prevented from being extruded; the elastic layer is formed by extrusion molding of polyurethane elastomer and has high elastic property.
Description
Technical Field
The utility model belongs to the technical field of the cable, especially, relate to a high-elastic cable of resistance to compression based on polyurethane.
Background
The cable is a wire which is made of one or more mutually insulated conductors and an outer-coated insulating elastic layer and is used for transmitting power or information from one place to another place, and has the characteristics of internal electrification and external insulation. Along with the rapid development of social economy in China, important engineering facilities such as subways, airports, railways and tunnels and personnel-intensive occasions such as intelligent communities, large supermarkets and public places are more and more, in order to guarantee the life and property safety of people, the requirements of people on power cables are higher and higher, the elasticity and the compression resistance of the traditional power cables are difficult to guarantee, the cables are extruded from the outside in the using process, the deformation of wires is easily caused, the power transmission is influenced, the safety and the stability are poor, and the using requirements are difficult to meet.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high-elastic cable of resistance to compression based on polyurethane to compressive property and elastic property are poor among the solution prior art problem. In order to achieve the above object, the utility model adopts the following technical scheme:
a polyurethane-based compression-resistant high-elasticity cable comprises a cable layer, wherein a slow-rebound layer, a compression-resistant layer and an elastic layer are sequentially arranged on the outer side of the cable layer;
wherein a gap is arranged between the elastic layer and the compression-resistant layer; elastic materials are filled in the gaps; the inner wall of the elastic layer is provided with an adjusting column; the adjusting column extends into the pressure-resistant layer; the adjusting column comprises a diameter transition section; the small end of the adjusting column faces the pressure-resistant layer;
the compression-resistant layer comprises an inner ring, an outer ring and a connecting spring which are arranged from inside to outside in sequence;
two ends of the connecting spring are respectively arranged on the outer wall of the inner ring and the inner wall of the outer ring;
a first fracture is arranged on the outer ring; the first fracture is in contact with the adjusting column;
a second fracture corresponding to the first fracture is arranged on the inner ring; the width of the second fracture is larger than that of the first fracture;
the elastic layer is a polyurethane layer.
Preferably, the adjusting column further comprises a guide section and a limiting section; the guide section is connected with the limiting section and the diameter gradual change section; the guide section extends into the first fracture; the limiting section is located between the inner ring and the outer ring.
Preferably, the thickness of the inner ring is greater than the thickness of the outer ring.
Preferably, the inner ring is a tensile layer.
Preferably, the cable layer comprises a tape layer and a plurality of insulated wire cores arranged in the tape layer; the insulated wire core comprises a conductor; a conductor wrapping layer is wrapped outside the conductor; and the outer part of the conductor wrapping layer is extruded with a wear-resistant layer.
Compared with the prior art, the utility model has the advantages that:
1) when the side wall of the cable is extruded, the elastic layer is extruded from the outside, the elastic layer has certain elasticity and can buffer certain pressure, the pressure is increased, the adjusting column moves towards the inner side along the first fracture to prop open the outer ring, and the propping deformation of the outer ring relieves most of the external pressure; the outer loop pulling connecting spring moves to the outside, and outer loop extrusion elastic substance, interior ring are the motion trend of keeping away from chronic resilience layer, avoid the cable layer to be extruded.
2) The elastic layer formed by the polyurethane elastomer through extrusion molding has high elastic property, so that the cable has certain elastic deformation when being extruded or impacted, and the cable core is protected.
Drawings
Fig. 1 is a cross-sectional view of a polyurethane-based compression-resistant high-elasticity cable according to an embodiment of the present invention.
Wherein, 1-slow rebound layer, 2-elastic layer, 3-adjusting column, 4-inner ring, 5-outer ring, 6-connecting spring, and 7-second fracture.
Detailed Description
The polyurethane-based compression-resistant high-resilience cable of the present invention will now be described in greater detail with reference to the schematic drawings, in which preferred embodiments of the present invention are shown, it being understood that those skilled in the art may modify the invention described herein while still achieving the advantageous effects of the present invention. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the invention.
As shown in fig. 1, the polyurethane-based compression-resistant high-elasticity cable comprises a cable layer, wherein a slow-rebound layer 1, a compression-resistant layer and an elastic layer 2 are sequentially arranged on the outer side of the cable layer; the slow rebound layer 1 is filled with a slow rebound filling material, so that the compression resistant layer and the cable layer are always kept in tight connection; a gap is arranged between the elastic layer 2 and the compression-resistant layer; filling elastic substances in the gaps; the inner wall of the elastic layer is provided with an adjusting column 3; the adjusting column 3 extends into the anti-pressure layer; the adjusting column 3 comprises a diameter transition section; the small end of the adjusting column 3 faces the pressure resistant layer; the compression-resistant layer comprises an inner ring 4, an outer ring 5 and a connecting spring 6 which are arranged from inside to outside in sequence; two ends of the connecting spring 6 are respectively arranged on the outer wall of the inner ring 4 and the inner wall of the outer ring 5; a first fracture is arranged on the outer ring 5; the first fracture is contacted with the adjusting column 3; the adjusting column 3 moves along the direction that the first fracture exceeds the second fracture 7; a second fracture 7 corresponding to the first fracture is arranged on the inner ring 4; the second fracture 7 is arranged near the first fracture and used for accommodating the adjusting column 3 so as to smoothly expand the outer ring 5 and the inner ring 4; the width of the second fracture 7 is larger than that of the first fracture; the elastic layer 2 is a polyurethane layer.
In this embodiment, the adjusting column 3 further comprises a guiding section and a limiting section; the guide section is connected with the limiting section and the diameter gradual change section; the guide section extends into the first fracture; the spacing section is located between the inner ring 4 and the outer ring 5. The limiting section has the function that the adjusting column 3 is always connected with the outer ring 5 and the elastic layer 2 before and after the function of the chronic rebound layer so as to always keep the tight connection between the outer ring 5 and the elastic layer 2.
In the present embodiment, the thickness of the inner ring 4 is greater than the thickness of the outer ring 5.
In the present embodiment, the inner ring 4 is a tensile layer.
In the embodiment, the cable layer comprises a belting layer and a plurality of insulated wire cores arranged in the belting layer; the insulated wire core comprises a conductor; a conductor lapping layer is lapped outside the conductor; the conductor is extruded and wrapped with a wear-resistant layer outside the wrapping layer.
In summary, in the polyurethane-based compression-resistant high-elasticity cable provided by the embodiment of the present invention, when the cable side wall is extruded, the elastic layer 2 is subjected to external extrusion force, the elastic layer 2 has certain elasticity, and can buffer certain pressure, so that the pressure is increased, the adjusting column 3 moves inwards along the first fracture, so as to prop the outer ring 5 open, and the propping deformation of the outer ring 5 relieves most of the external pressure; outer loop 5 pulling connecting spring 6 moves to the outside, and outer loop 5 extrusion elastic substance, inner ring 4 are the motion trend of keeping away from chronic resilience layer, avoid the cable layer to be extruded. Furthermore, the elastic layer 2 formed by the extrusion molding of the polyurethane elastomer has high elastic property, so that the cable has certain elastic deformation when being extruded or impacted, and the cable core is protected.
The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.
Claims (5)
1. A polyurethane-based compression-resistant high-elasticity cable is characterized by comprising a cable layer, wherein a slow-rebound layer, a compression-resistant layer and an elastic layer are sequentially arranged on the outer side of the cable layer;
wherein a gap is arranged between the elastic layer and the compression-resistant layer; elastic materials are filled in the gaps; the inner wall of the elastic layer is provided with an adjusting column; the adjusting column extends into the pressure-resistant layer; the adjusting column comprises a diameter transition section; the small end of the adjusting column faces the pressure-resistant layer;
the compression-resistant layer comprises an inner ring, an outer ring and a connecting spring which are arranged from inside to outside in sequence;
two ends of the connecting spring are respectively arranged on the outer wall of the inner ring and the inner wall of the outer ring;
a first fracture is arranged on the outer ring; the first fracture is in contact with the adjusting column;
a second fracture corresponding to the first fracture is arranged on the inner ring; the width of the second fracture is larger than that of the first fracture;
the elastic layer is a polyurethane layer.
2. The polyurethane-based compression-resistant high-elasticity cable according to claim 1, wherein the adjusting column further comprises a guide section and a limiting section; the guide section is connected with the limiting section and the diameter gradual change section; the guide section extends into the first fracture; the limiting section is located between the inner ring and the outer ring.
3. The polyurethane-based crush-resistant high-resilience cable as claimed in claim 1, wherein the thickness of the inner ring is greater than the thickness of the outer ring.
4. The polyurethane-based compression-resistant high-elasticity cable as claimed in claim 1, wherein the inner ring is a tensile layer.
5. The polyurethane-based compression-resistant high-elasticity cable according to claim 1, wherein the cable layer comprises a tape layer and a plurality of insulated wire cores arranged in the tape layer; the insulated wire core comprises a conductor; a conductor wrapping layer is wrapped outside the conductor; and the outer part of the conductor wrapping layer is extruded with a wear-resistant layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920625957.3U CN209929017U (en) | 2019-04-30 | 2019-04-30 | High-elastic cable of resistance to compression based on polyurethane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920625957.3U CN209929017U (en) | 2019-04-30 | 2019-04-30 | High-elastic cable of resistance to compression based on polyurethane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209929017U true CN209929017U (en) | 2020-01-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920625957.3U Expired - Fee Related CN209929017U (en) | 2019-04-30 | 2019-04-30 | High-elastic cable of resistance to compression based on polyurethane |
Country Status (1)
| Country | Link |
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| CN (1) | CN209929017U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111899930A (en) * | 2020-07-17 | 2020-11-06 | 浙江海宁和金电子科技有限公司 | High-wear-resistance and high-compression-resistance PVC power line |
-
2019
- 2019-04-30 CN CN201920625957.3U patent/CN209929017U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111899930A (en) * | 2020-07-17 | 2020-11-06 | 浙江海宁和金电子科技有限公司 | High-wear-resistance and high-compression-resistance PVC power line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200110 Termination date: 20210430 |