CN215801032U - Cable protection sleeves and cable protection systems - Google Patents
Cable protection sleeves and cable protection systems Download PDFInfo
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- CN215801032U CN215801032U CN202121884471.5U CN202121884471U CN215801032U CN 215801032 U CN215801032 U CN 215801032U CN 202121884471 U CN202121884471 U CN 202121884471U CN 215801032 U CN215801032 U CN 215801032U
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- 229920005989 resin Polymers 0.000 claims description 29
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Abstract
The utility model discloses a cable protection sleeve, which relates to the technical field of bridge cable protection equipment and comprises the following components: the cable comprises a shell, a cable body and a heat insulation and temperature resistance layer, wherein the shell is in a sleeve shape and is used for being sleeved outside the cable, and the shell sequentially comprises an outer weather-resistant layer, a heat insulation and temperature resistance layer and an inner weather-resistant layer from outside to inside; the heat insulation temperature-resistant layer is formed by compounding a plurality of ceramic fiber paper layers, a plurality of metal foil layers and/or a plurality of basalt composite felt layers; the utility model also provides a cable protection system, which comprises a plurality of socket sleeves and a plurality of cable protection sleeves, wherein a plurality of shells are fixedly connected through the socket sleeves in sequence; the cable protection sleeve and the cable protection system provided by the utility model have strong protection strength on cables, improve the safety performance of a cable system bridge and are suitable for cables with different lengths.
Description
Technical Field
The utility model relates to the technical field of bridge cable protection equipment, in particular to a cable protection sleeve and a cable protection system.
Background
Along with the development of economic society of China and the increase of traffic flow of roads and bridges, vehicles for transporting flammable and combustible articles on the bridges are also increased continuously, so that the burning and firing events of the vehicles are more and more, and the fireproof problem of the bridges is gradually emphasized. For a cable system bridge, a cable is a main bearing component of the bridge, once the cable is damaged in a fire disaster, the traffic is blocked, huge economic loss is caused, and meanwhile, the safety of the bridge is greatly threatened. Bridge fire accidents are frequent, and the fire risk of large cable system bridges is increasingly severe. Once a fire disaster occurs, the existing cable protective structure (PE sheath, main cable polysulfide sealant and the like) is very easy to ignite, and along with the influence of factors such as strong wind of the external environment of the bridge and the like, the fire disaster range of the cable is rapidly expanded, for example: after the stay cable PE sheath is ignited, the stay cable PE sheath can burn upwards, and a molten drop phenomenon can occur to influence other stay cables, so that the influence range of fire is enlarged; after the suspension bridge sling sheath is ignited, it burns upwards, thereby affecting the main cable and other slings. The cable system is a key stressed member of the cable system bridge, once a fire disaster occurs, the structural strength of the cable system bridge is greatly reduced, and the safe operation of the cable system bridge is seriously influenced. At present, the bridge cable protection is mainly focused on corrosion prevention in China, but the problem of fire catching of the bridge cable is not effectively prevented.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a cable protection sleeve and a cable protection system, which are used for solving the problems in the prior art and improving the safety performance of a cable system bridge.
In order to achieve the purpose, the utility model provides the following scheme:
the utility model provides a cable protective sleeve, comprising: the cable comprises a shell, a cable body and a cable cover, wherein the shell is in a sleeve shape and is used for being sleeved outside the cable, and the shell sequentially comprises an outer weather-resistant layer, a heat insulation temperature-resistant layer and an inner weather-resistant layer from outside to inside; the heat insulation temperature-resistant layer is formed by compounding and pressing a plurality of ceramic fiber paper layers, a plurality of metal foil layers and/or a plurality of basalt composite felt layers.
Preferably, the outer wall of the outer weather-resistant layer is coated with a weather-resistant paint layer or a gel coat resin layer.
Preferably, the shell comprises an inner shell and an outer shell which are sleeved with each other, and the inner shell and the outer shell are both sleeve-shaped; the inner shell comprises two sub inner shells which are arc-shaped and have the same shape and size, the outer shell comprises two sub outer shells which are arc-shaped and have the same shape and size, the sub inner shells are respectively and fixedly connected with the sub outer shells to form two sub shells, and each sub outer shell and the sub inner shells are arranged in the sub shells in a staggered mode along the circumferential direction and are spliced and fixedly connected with each other to form the sleeve-shaped shells.
Preferably, the inner shell is sequentially provided with the inner weather-resistant layer and the inner heat-insulating temperature-resistant layer from inside to outside, the outer shell is sequentially provided with the outer heat-insulating temperature-resistant layer and the outer weather-resistant layer from inside to outside, the inner heat-insulating temperature-resistant layer is sequentially provided with a basalt fiber composite felt, the metal foil layer and a ceramic fiber paper layer from inside to outside, and the outer heat-insulating temperature-resistant layer is sequentially provided with the ceramic fiber paper layer, the metal foil layer and the ceramic fiber paper layer from inside to outside.
Preferably, the outer weather-resistant layer and the inner weather-resistant layer are products obtained by curing basalt fiber cloth or basalt needle felt soaked with resin glue solution, and the resin glue solution is doped with a flame retardant in advance.
Preferably, the two subshells are manufactured by the same die in a mould pressing mode.
The utility model also provides a cable protection system which comprises a plurality of socket sleeves and a plurality of cable protection sleeves, wherein the plurality of shells are fixedly connected through the socket sleeves in sequence.
Preferably, the outer wall of each shell is provided with a first rotation stopping surface extending along the length direction of the shell, the inner wall of the socket sleeve is provided with a second rotation stopping surface matched with the first rotation stopping surface, and when the shell is inserted into the socket sleeve, the first rotation stopping surface is attached to the second rotation stopping surface.
Compared with the prior art, the utility model has the following technical effects:
the utility model provides a cable protection sleeve and a cable protection system, wherein a shell sequentially comprises an outer weather-resistant layer, a heat insulation temperature-resistant layer and an inner weather-resistant layer from outside to inside; the outer weather-resistant layer and the inner weather-resistant layer have weather-resistant characteristics, and can pass the test of outdoor weather such as wind, rain, sunlight, cold, heat, bacteria and the like, so that the heat-insulating temperature-resistant layer and the cable rope in the outer weather-resistant layer are ensured not to be damaged due to the severe external weather.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of a cable protective sheath according to an embodiment;
FIG. 2 is a schematic view of a sub-housing of the cable protective cover according to one embodiment;
FIG. 3 is a view from another direction of FIG. 2;
FIG. 4 is an exploded view of the inner to outer layers of material of the shell of the cable protective cover according to one embodiment;
FIG. 5 is a schematic structural view of a socket in the cable guard system according to the second embodiment;
fig. 6 is a schematic structural view illustrating the cable guard system according to the second embodiment when the cable guard system is sleeved on the cable;
in the figure: 1-sub outer layer shell, 2-sub inner layer shell, 3-first rotation stopping surface, 4-shell, 5-socket sleeve, 6-cable, 7-second rotation stopping surface, 8-sub shell, 9-inner weather resisting layer, 10-outer weather resisting layer, 11-metal foil layer, 12-ceramic fiber paper layer and 13-basalt composite felt layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model aims to provide a cable protection sleeve and a cable protection system, which are used for solving the problems in the prior art and improving the safety performance of a cable system bridge.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example one
The embodiment provides a cable protection sleeve, as shown in fig. 1 to 6, including: the cable comprises a shell 4, wherein the shell 4 is in a sleeve shape, the shell 4 is sleeved outside a cable 6, and the shell 4 sequentially comprises an outer weather-resistant layer 10, a heat insulation temperature-resistant layer and an inner weather-resistant layer 9 from outside to inside; the heat insulation temperature-resistant layer is formed by compounding and pressing a plurality of layers of ceramic fiber paper layers 12, a plurality of metal foil layers 11 and/or a plurality of basalt composite felt layers 13; the outer weather-resistant layer 10 and the inner weather-resistant layer 9 have weather-resistant characteristics, and can pass through the examination of outdoor weather such as wind, rain, sunlight, cold, heat, bacteria and the like, so as to ensure that the heat-insulating and temperature-resistant layer and the cable 6 in the outer weather are not damaged due to the severe external weather, in addition, the heat-insulating and temperature-resistant layer is formed by compounding a plurality of ceramic fiber paper layers 12, a plurality of metal foil layers 11 and/or a plurality of basalt composite felt layers 13, the ceramic fiber paper layers 12 and the basalt composite felt layers 13 have excellent heat-insulating and temperature-resistant characteristics, the metal foil layers 11 have the characteristic of heat radiation resistance, and can effectively resist heat convection under the high-temperature condition, therefore, the cable protection provided by the embodiment has strong protection force on the cable, and the safety performance of a cable system bridge is improved.
Furthermore, the outer wall of the outer weather-resistant layer 10 is coated with a weather-resistant paint layer or a gel coat resin layer, so that the ultraviolet radiation resistance of the shell 4 can be improved, the aging degree of the shell can be delayed, and environmental moisture can be effectively prevented from entering the middle heat-insulating temperature-resistant layer.
Further, the shell 4 comprises an inner shell and an outer shell which are sleeved with each other, and the inner shell and the outer shell are both sleeve-shaped; the inner shell comprises two sub inner shells 2 which are arc-shaped and have the same shape and size, the outer shell comprises two sub outer shells 1 which are arc-shaped and have the same shape and size, the two sub inner shells 2 are fixedly connected with the two sub outer shells 1 respectively and form two sub shells 8, the sub outer shells 1 and the sub inner shells 2 in each sub shell 8 are arranged in a staggered mode along the circumferential direction, the two sub shells 8 are convenient to assemble and fix in a staggered mode, the two sub shells 8 are spliced and fixedly connected to form a sleeve-shaped shell, the two sub shells 8 are identical in shape and size, therefore, the purpose of manufacturing the cable protecting sleeve can be achieved through one set of dies, the cost is saved, the two sub shells 8 can be connected through adhesive glue and/or connecting supports are designed on the two sub shells 8 and are fixed on the surface of the cable 6 together.
Further, the inner shell is sequentially provided with an inner weather-resistant layer 9 and an inner heat-insulating temperature-resistant layer from inside to outside, the outer shell is sequentially provided with an outer heat-insulating temperature-resistant layer and an outer weather-resistant layer 10 from inside to outside, the inner heat-insulating temperature-resistant layer is sequentially provided with a basalt fiber composite felt, a metal foil layer 11 and a ceramic fiber paper layer 12 from inside to outside, the outer heat-insulating temperature-resistant layer is sequentially provided with a ceramic fiber paper layer 12, a metal foil layer 11 and a ceramic fiber paper layer 12 from inside to outside, and the inner shell and the outer shell are both provided with the metal foil layer 11, so that the heat radiation resistance of the shell is greatly improved.
Further, the outer weather-resistant layer 10 and the inner weather-resistant layer 9 are products of basalt fiber cloth or basalt needled felt after being cured, the resin glue solution is soaked with a resin glue solution, a fire retardant is doped in the resin glue solution in advance, the resin glue solution is thermosetting resin, the thermosetting resin is epoxy resin, unsaturated resin, organic silicon resin, phenolic resin, polyurethane resin and the like, and the resin glue solution and the basalt fiber cloth or the needled felt are compounded and cured to form an outer layer supporting structure of the protective sleeve; the flame retardant comprises aluminum hydroxide, magnesium hydroxide, antimony trioxide, glass micropowder, common ceramic flame retardants and the like, and in the embodiment, the ceramic flame retardant is preferably added into resin, is added in a proportion of 20-30% of the total weight of the resin, can be used as a resin high-temperature flame retardant and attached to basalt fiber cloth to form a ceramic protective layer, and can form barrier to heat convection and heat radiation.
Furthermore, two shells 4 can be inserted in the axial direction to protect cables 6 with different lengths, the length of the shell 4 is 50-200cm, and the inner diameter size is matched with the outer diameter of the bridge cable 6.
Further, the ceramic fiber paper layer 12 is preferably made of an inorganic ceramic fiber material, the thickness is preferably 2-8mm, the inorganic ceramic fiber material can still keep complete shape and size at high temperature, and the heat-resistant temperature can reach over 1200 ℃; the heat conduction coefficient can be as low as 0.12w/(m.k) at 1000 ℃, and the material has certain elasticity and can be used for high-temperature sealing; the heat insulation and temperature resistance is mainly used for heat insulation and temperature resistance under high temperature, and the transmission of external high temperature to the inside is blocked; the metal foil layer 11 is made of alloy and rolled into a foil sheet shape, the thickness is 0.05-0.5mm, the metal foil can effectively block heat convection at high temperature and has the advantages of heat radiation resistance, and the metal foil is easy to press and form; the metal foil layer 11 can be made of stainless steel or metal aluminum; the basalt composite felt layer 13 is preferably a needled felt with base cloth, can be used as a hardness reinforcing material and a heat insulation and temperature resistance material of the shell 4, and can resist the high temperature of 900 ℃ and the heat conductivity coefficient of 0.069w/(m.k) at the high temperature of 540 ℃.
Example two
The embodiment provides a cable protection system, which comprises a plurality of socket sleeves 5 and a plurality of cable protection sleeves in the first embodiment, wherein a plurality of shells 4 are fixedly connected through the socket sleeves 5 in sequence so as to adapt to cables 6 with different lengths.
Furthermore, the outer wall of each shell 4 is provided with a first rotation-stopping surface 3 extending along the length direction of the shell, the inner wall of the socket sleeve 5 is provided with a second rotation-stopping surface 7 matched with the first rotation-stopping surface 3, and when the shell 4 is inserted into the socket sleeve 5, the first rotation-stopping surface 3 is attached to the second rotation-stopping surface 7.
EXAMPLE III
The embodiment provides a manufacturing method of a cable protection sleeve, which comprises the following steps:
firstly, according to a drawing for manufacturing the shell 4, a glass fiber reinforced plastic or metal mold is designed, wherein the mold is designed into an upper mold and a lower mold and is divided into a female mold and a male mold. The concave-convex mould is combined, and the intermediate space is reserved for the product. Before manufacturing, firstly spraying a release agent on the cavity walls of the female die and the male die for 2-3 times, uniformly coating, and airing for about 30-40 minutes; then the following process is carried out:
firstly, manufacturing an outer weather-resistant layer 10 on the inner wall of a female die;
secondly, laying a heat-insulating temperature-resistant layer on the outer weather-resistant layer 10; the heat insulation and temperature resistance layer is formed by compounding a plurality of ceramic fiber paper layers 12, a plurality of metal foil layers 11 and/or a plurality of basalt composite felt layers 13, and quick-drying glue is respectively sprayed on two sides of the metal foil layers 11 when the metal foil layers 11 are laid, so that the metal foil layers 11 are fixedly connected with other structures;
step three, manufacturing an inner weather-resistant layer 9 on the heat-insulating and temperature-resistant layer;
step four, die assembly; when the mold is closed, the positioning is accurate, then the concave-convex mold is locked by screws, and the resin is cured;
step five, demolding after curing; the prepared mould is pasted at normal temperature (about 20 ℃), and the mould is generally solidified and shaped for 48 hours, namely the mould can be demoulded. And in the demolding process, the mold is not beaten by hard objects, compressed air is used for intermittently blowing as much as possible to gradually separate the mold from the female mold, and then the corners of the product are polished and trimmed to finish the product.
Further, when the outer weather-resistant layer 10 is manufactured in the first step, a gel coat is coated on the cavity walls of the female die and the male die in advance, and when the gel coat is initially set and is soft in hand feeling and not sticky, the outer weather-resistant layer 10 is manufactured on the gel coat; the outer weathering layer 10 is produced by a process comprising: coating the resin glue solution on a glue coating layer of the female die to form a resin glue solution layer, immediately paving a layer of basalt fiber cloth or basalt needled felt on the resin glue solution layer, compacting the cloth layer by using a brush to ensure that the glue content is uniform, discharging air bubbles, so that the basalt fiber cloth or the basalt needled felt is uniformly soaked with the resin glue solution to form an outer weather-resistant layer 10; preparation of resin glue solution: according to the viscosity of the normal temperature resin, the resin can be preheated properly; preparing proper curing agent and auxiliary agent according to the used resin, and then adding flame retardant with the mass of 20-30% of the weight of the resin.
Further, a heat-insulating and temperature-resistant layer is laid on the outer weather-resistant layer 10.
Further, after resin glue solution is coated on the heat-insulating and temperature-resistant layer, basalt fiber cloth or basalt needle felt is laid, and the basalt fiber cloth or the basalt needle felt is uniformly soaked with the resin glue solution to form the inner weather-resistant layer 9.
The principle and the implementation mode of the utility model are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the utility model.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121884471.5U CN215801032U (en) | 2021-08-12 | 2021-08-12 | Cable protection sleeves and cable protection systems |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121884471.5U CN215801032U (en) | 2021-08-12 | 2021-08-12 | Cable protection sleeves and cable protection systems |
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| Publication Number | Publication Date |
|---|---|
| CN215801032U true CN215801032U (en) | 2022-02-11 |
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|---|---|---|---|
| CN202121884471.5U Active CN215801032U (en) | 2021-08-12 | 2021-08-12 | Cable protection sleeves and cable protection systems |
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| CN (1) | CN215801032U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481850A (en) * | 2021-08-12 | 2021-10-08 | 江苏天龙玄武岩连续纤维股份有限公司 | Cable protection sleeve, cable protection system and manufacturing method of cable protection sleeve |
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2021
- 2021-08-12 CN CN202121884471.5U patent/CN215801032U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481850A (en) * | 2021-08-12 | 2021-10-08 | 江苏天龙玄武岩连续纤维股份有限公司 | Cable protection sleeve, cable protection system and manufacturing method of cable protection sleeve |
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