Low-voltage rubber jacketed flexible cable for ships

Abstract

The utility model relates to the technical field of cables, and discloses a low-voltage rubber jacketed flexible cable for ships, which comprises a conductor, a first protective layer and a waterproof layer, an insulating layer is wrapped outside the conductor, the waterproof layer is wrapped outside the insulating layer, the waterproof layer is used for improving the waterproof effect of the cable, and a filling layer is arranged between the waterproof layer and the insulating layer. The waterproof layer is wrapped by the first protective layer. According to the utility model, through the arrangement of the first protective layer, seawater is prevented from immersing into the cable, corrosion of seawater can be slowed down, when the first protective layer is cracked due to an accident, the seawater acts on the water-blocking layer after passing through the first protective layer, and the seawater is absorbed by the water-blocking expansion paste in the water-blocking layer, thereby preventing the seawater from immersing into the cable.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a low-voltage rubber-sheathed flexible cable for ships. Background Art

[0002] In my country's South China Sea, ultraviolet rays are strong, seawater is highly corrosive, and cables also need to have water-blocking capabilities. This requires that on the one hand, ships should have a certain degree of protection for cables, which is obviously difficult for ships to do in this case. On the other hand, we must consider that the cable itself should have anti-seawater corrosion, water-blocking functions, and the ability to withstand loads. That is, under certain conditions, the cable has a certain load capacity, is anti-seawater corrosion, and has a certain water-blocking function. In this case, the cable can still maintain normal operation. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a low-voltage rubber-sheathed flexible cable for ships, which solves the problem that traditional cables themselves do not have the functions of anti-seawater corrosion, water blocking and load bearing.

[0004] The utility model solves the above technical problems through the following technical means: a low-voltage rubber-sheathed flexible cable for ships, comprising a conductor, a first protective layer and a water-blocking layer, the conductor is wrapped with an insulating layer, the water-blocking layer is wrapped outside the insulating layer, the water-blocking layer is used to improve the waterproof effect of the cable, a filling layer is arranged between the water-blocking layer and the insulating layer, and the first protective layer is wrapped outside the water-blocking layer.

[0005] Furthermore, a plurality of through holes with triangular cross sections are opened in the water-blocking layer, and the triangular through holes are all filled with water-blocking expansion paste.

[0006] Furthermore, it also includes a metal shielding layer, which is arranged between the water-blocking layer and the insulating layer, and the metal shielding layer is wrapped outside the insulating layer.

[0007] Furthermore, the cross section of the metal shielding layer is triangular.

[0008] Furthermore, the metal shielding layer is a copper wire braided mesh.

[0009] Furthermore, it also includes a second protective layer, which is arranged between the filling layer and the water-blocking layer, and the second protective layer is wrapped outside the filling layer. The metal shielding layer is against the surface of the second protective layer close to the conductor side, and the material of the second protective layer is the same as that of the first protective layer.

[0010] Furthermore, anti-slip particles are arranged on the outer surface of the first protective layer.

[0011] Beneficial effects of the utility model:

[0012] 1. The first protective layer can prevent seawater from entering the cable and slow down the corrosion of seawater. When an unexpected situation causes the first protective layer to crack, the seawater will act on the water-blocking layer after passing through the first protective layer. The seawater will be absorbed by the water-blocking swelling paste in the water-blocking layer. Under the action of the water-blocking layer, seawater can be prevented from entering the cable.

[0013] 2. By providing the first protective layer and the second protective layer, the first protective layer and the second protective layer are made of the same material, which can further prevent seawater from penetrating into the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0015] Figure 1 This is a structural schematic diagram of a low-voltage rubber-sheathed flexible cable for ships in the utility model;

[0016] in:

[0017] 1. Conductor; 2. Insulation layer; 3. Filling layer; 4. Metal shielding layer; 5. Second protective layer;

[0018] 6. Water blocking layer; 601. Through hole;

[0019] 7. First protective layer; 8. Anti-slip particles. DETAILED DESCRIPTION

[0020] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are only for exemplary descriptions, and they are only schematic diagrams, not physical diagrams, and cannot be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts in the figures may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the figures may be omitted.

[0021] The same or similar numbers in the figures of the embodiments of the present invention correspond to the same or similar parts. In the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the figure. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the figures are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. In the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0023] like Figure 1 As shown, the utility model is a low-voltage rubber-sheathed flexible cable for ships, comprising a conductor 1, a first protective layer 7 and a water-blocking layer 6, the conductor 1 is wrapped with an insulating layer 2, there are a plurality of conductors 1, preferably three conductors here, the three conductors 1 are in a herringbone structure, the water-blocking layer 6 is wrapped outside the insulating layer, a filling layer 3 is arranged between the water-blocking layer 6 and the insulating layer 2, the first protective layer 7 is wrapped outside the water-blocking layer 6, the outer surface of the first protective layer 7 is provided with anti-slip particles 8, a through hole 601 with a triangular cross-section is opened in the water-blocking layer 6, and the triangular through holes 601 are filled with water-blocking expansion paste.

[0024] like Figure 1 As shown, a metal shielding layer 4 with a triangular cross section is provided in the cable. The metal shielding layer 4 is provided between the water-blocking layer 6 and the insulating layer 2, and the metal shielding layer 4 is wrapped outside the insulating layer 2. The metal shielding layer 4 is a copper wire braided mesh.

[0025] like Figure 1 As shown, a second protective layer 5 is arranged in the cable, and the second protective layer 5 is arranged between the filling layer 3 and the water-blocking layer 6. The second protective layer 5 is wrapped outside the filling layer 3, and the metal shielding layer 4 is against the surface of the second protective layer 5 close to the conductor 1. The material of the second protective layer 5 is the same as that of the first protective layer 7.

[0026] The working principle of the utility model is as follows: the first protective layer 7 and the second protective layer 5 are made of the same material, both of which are EPDM rubber. EPDM rubber has excellent aging resistance, weather resistance, ozone resistance, sunlight resistance, heat resistance, water resistance, water vapor resistance, UV resistance, radiation resistance and other properties. Since the cable is used at sea, it is inevitable that the cable will be stained with seawater. The anti-slip particles 8 arranged outside the protective layer can facilitate the pulling of the cable.

[0027] When an unexpected situation causes the first protective layer 7 to crack, the seawater will act on the water-blocking layer 6 after passing through the first protective layer 7, and the seawater will be absorbed by the water-blocking swelling paste in the water-blocking layer 6 to prevent the seawater from penetrating into the cable. Under the action of the second protective layer 5, the seawater can be further prevented from penetrating into the cable.

[0028] The cross-section of the through hole 601 in the water-blocking layer 6 is triangular. The through hole 601 in the water-blocking layer 6 will not reduce the strength of the cable, thereby not reducing the load capacity of the cable. By setting the filling layer 3, the conductor 1 can be fixed in the middle of the cable. By setting the metal shielding layer 4, the possibility of the magnetic field generated by the cable affecting the electronic equipment can be reduced. By setting the insulating layer 2, the short circuit of the conductor 1 can be avoided to affect the use of the cable.

[0029] The above is a detailed introduction to a low-voltage rubber-sheathed flexible cable for ships provided by the present application. The description of the specific embodiment is only used to help understand the method and core idea of ​​the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present utility model.

[0030] It should be noted that the phrases "one embodiment", "embodiment", "some optional embodiments", "exemplary embodiments", "some embodiments", etc. mentioned in the specification indicate that the described embodiment may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing specific features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0031] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0032] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0033] The above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model. The technology, shape, and structure that are not described in detail in the utility model are all well-known technologies.

Claims

1. A low-voltage rubber-sheathed flexible cable for ships, characterized in that: It includes a conductor, a first protective layer and a water-blocking layer, wherein the conductor is wrapped with an insulating layer, the water-blocking layer is wrapped outside the insulating layer, the water-blocking layer is used to improve the waterproof effect of the cable, a filling layer is arranged between the water-blocking layer and the insulating layer, and the first protective layer is wrapped outside the water-blocking layer; a plurality of through holes with triangular cross-sections are opened in the water-blocking layer, and the triangular through holes are all filled with water-blocking expansion paste.

2. A low-voltage rubber-sheathed flexible cable for ships according to claim 1, characterized in that: It also includes a metal shielding layer, which is arranged between the water-blocking layer and the insulating layer, and the metal shielding layer is wrapped outside the insulating layer.

3. A low-voltage rubber-sheathed flexible cable for ships according to claim 2, characterized in that: The cross section of the metal shielding layer is triangular.

4. A low-voltage rubber-sheathed flexible cable for ships according to claim 2, characterized in that: The metal shielding layer is a copper wire braided mesh.

5. The low-voltage rubber-sheathed flexible cable for ships according to claim 3 is characterized in that: It also includes a second protective layer, which is arranged between the filling layer and the water-blocking layer, and the second protective layer is wrapped outside the filling layer. The metal shielding layer is against the surface of the second protective layer close to the conductor side, and the material of the second protective layer is the same as that of the first protective layer.

6. A low-voltage rubber-sheathed flexible cable for ships according to claim 1, characterized in that: The outer surface of the first protective layer is provided with anti-skid particles.

Images