Underwater electric wire cable telescopic anti-bending mechanical protection sleeve

Abstract

The utility model discloses an underwater electric wire cable telescopic anti-bending mechanical protection sleeve pipe relates to protection sleeve pipe technical field, including protection sleeve pipe main part, the inner surface fixed mounting of protection sleeve pipe main part has the inner tube, the cavity between the inner tube and protection sleeve pipe main part is set to sandwich layer, the outer surface of the inner tube evenly distributed fixedly connected with the support ring, the interval of support ring all installs the elastic ball, and the elastic ball sets up as rubber ball, the inner diameter of the inner tube and protection sleeve pipe main part both ends opening diameter match. This underwater electric wire cable telescopic anti-bending mechanical protection sleeve pipe, compared with the existing ordinary underwater electric wire cable telescopic anti-bending mechanical protection sleeve pipe, not only can avoid the whole pipe body deformation to appear the situation of pressing damage cable, and by the support of support ring and elastic ball, can also support the pressure, avoid protection sleeve pipe main part excessive extrusion deformation, thereby greatly improve the form stability of whole pipe body, enhance the protection ability.

Description

Technical Field

[0001] This utility model relates to the field of protective sleeve technology, specifically a retractable and bend-resistant mechanical protective sleeve for underwater electrical cables. Background Technology

[0002] Cables are a general term encompassing optical fibers, electrical cables, and similar items. They have numerous uses, primarily for control installations, equipment connections, and power transmission, making them a common and indispensable part of daily life. Modern urban power grid construction and renovation projects, urban infrastructure projects, civil aviation airport construction, industrial park construction, road and bridge construction, and residential community construction all require the burial of cables (and in special scenarios, cables may need to cross waterways) to alleviate pressure on surface space. Whether buried underground or laid across water, cables require protective sheathing to ensure their continued use. Existing retractable, bend-resistant mechanical protective sleeves for underwater cables are only single-layered sealed tubes that cover the cable surface when it is buried in water. While these sleeves can prevent water corrosion, in deep waters, there is significant water pressure or current fluctuations that can cause the cable to sway. This can lead to water pressure squeezing the sleeve and the sleeve colliding with underwater rocks and other debris. Water pressure can cause the sleeve to deform and bend, and collisions can also cause this deformation and bending. The pressure from deformation and bending acts directly on the cable surface, resulting in surface damage and rendering the cable unusable. Therefore, these sleeves are not effective in protecting the cable.

[0003] Therefore, in view of this, we have studied and improved the existing structure to address its shortcomings, and proposed a retractable and bend-resistant mechanical protective sleeve for underwater electrical cables. Utility Model Content

[0004] The purpose of this utility model is to provide a retractable, bend-resistant mechanical protective sleeve for underwater electrical cables to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a retractable and bend-resistant mechanical protective sleeve for underwater electrical cables, comprising a protective sleeve body, an inner cylinder fixedly installed on the inner surface of the protective sleeve body, a cavity between the inner cylinder and the protective sleeve body being configured as a sandwich layer, and support rings uniformly distributed and fixedly connected to the outer surface of the inner cylinder, with elastic balls installed at intervals of the support rings, and the elastic balls being rubber balls.

[0006] Preferably, the inner diameter of the inner cylinder matches the diameter of the openings at both ends of the protective sleeve body, and the cable passes through the inside of the inner cylinder and through the protective sleeve body.

[0007] Preferably, a connector is fixedly connected to the left end of the outer surface of the protective sleeve body, and a threaded groove is provided on the right side of the outer surface of the protective sleeve body.

[0008] Preferably, the shape and size of the connector match the threaded groove, and the outer surface of the connector is provided with threads that match the threaded groove.

[0009] Preferably, a first sealing gasket is fixedly connected to the right side of the outer surface of the protective sleeve body, located outside the threaded groove, and a second sealing gasket is fixedly connected to the right side of the outer surface of the protective sleeve body, located inside the threaded groove.

[0010] Preferably, the width of the first sealing gasket and the second sealing gasket is the same as the width of the left side of the protective sleeve body surface excluding the connector portion, and both the first sealing gasket and the second sealing gasket are made of rubber.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model protects cables by using a double-layer tube structure consisting of a protective sleeve body, inner cylinder, interlayer, support ring, and elastic ball. When exposed to water currents or pressure at excessive depths, only the protective sleeve body deforms and is compressed. The interlayer provides deformation space for the sleeve body, while the inner cylinder remains undeformed. This prevents the entire tube from deforming and damaging the cable. Furthermore, the support ring and elastic ball provide support against pressure, preventing excessive deformation of the sleeve body and significantly improving the overall tube's stability and protective capability. Additionally, the segmented support rings limit the space between them, restricting the maximum bending angle during bending. If two support rings touch, the tube cannot bend further, thus protecting against bending and preventing excessive bending that could lead to sleeve breakage or pressure on the cable at the bending point. 2. This utility model, through the setting of connector, threaded groove, first sealing gasket and second sealing gasket, allows two tubes to be extended and spliced ​​or disassembled and shortened according to length requirements. The entire tube can be flexibly adjusted according to the length of the cable by disassembly and assembly, thereby greatly improving the flexibility of use. After connection, the first sealing gasket and the second sealing gasket can provide double sealing at the joint, thereby preventing water from seeping through the joint and corroding the cable. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall left end structure of this utility model; Figure 2 This is a schematic diagram of the overall right end structure of this utility model; Figure 3This is a schematic diagram of the overall frontal sectional structure of this utility model.

[0013] In the figure: 1. Protective sleeve body; 2. Inner cylinder; 3. Interlayer; 4. Support ring; 5. Elastic ball; 6. Connector; 7. Threaded groove; 8. First sealing gasket; 9. Second sealing gasket. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] like Figures 1-3 As shown, an underwater telescopic anti-bending mechanical protective sleeve for electrical cables includes a protective sleeve body 1, an inner cylinder 2 fixedly installed on the inner surface of the protective sleeve body 1, a cavity 3 between the inner cylinder 2 and the protective sleeve body 1, and support rings 4 evenly distributed and fixedly connected on the outer surface of the inner cylinder 2. Elastic balls 5 are installed at intervals of the support rings 4, and the elastic balls 5 are rubber balls; the support rings 4 are made of rigid material.

[0016] The inner diameter of the inner cylinder 2 matches the diameter of the openings at both ends of the protective sleeve body 1, and the cable passes through the inner cylinder 2 and through the protective sleeve body 1.

[0017] By adopting the above technical solution, the protective sleeve body 1 and the inner cylinder 2 form a double-layer tube to protect the cable. When the cable is subjected to water flow fluctuations or water pressure at excessive depths, only the protective sleeve body 1 will deform and be squeezed. The interlayer 3 provides deformation space for the protective sleeve body 1, and the inner cylinder 2 will not deform. This avoids the situation where the entire tube deforms and compresses and damages the cable. Furthermore, the support ring 3 and the elastic ball 5 can support the pressure and prevent the protective sleeve body 1 from being excessively squeezed and deformed, thereby greatly improving the shape stability of the entire tube and enhancing the protection capability. Since the support ring is made of rigid material, it supports the outer sleeve. The outer sleeve is subjected to force first, but the support ring can withstand the pressure without deformation. Since the support ring does not deform, the overall shape of the support ring fitting the inner cylinder will not change. In other words, the inner cylinder will not be affected by external pressure, thus protecting the cable. The overall pressure is entirely borne by the support ring, and the support ring is segmented, which means that there are small spaces between each interval of the protective sleeve body 1 that can deform. This prevents the protective sleeve body from making hard contact with the pressure and allows it to use slight deformation force to resist the pressure. The elastic ball itself can also deform, thereby assisting the protective sleeve body 1 and preventing water pressure from causing the surface of the protective sleeve body to make hard contact with the pressure, which would lead to excessive bending and rupture due to the inability to deform and buffer. Although the support rings are rigid, the spacing in the middle allows the entire sheath to accommodate slight bending of the cable. Because the support rings on both sides can fit and restrict excessive bending, they prevent excessive bending and thus prevent kinking. The advantage of this design is that under normal conditions, the cable will definitely remain straight and not bend. However, in water, there are unpredictable situations that may cause the cable to be dragged. In this case, it can be slightly bent without affecting the cable. The flexible force counteracts the uncertain influence of the water, avoiding the cable and sheath from being subjected to rigid force that would never bend. Rigid force could lead to tearing of the cable and sheath. Overall, the protection effect of the cable is improved.

[0018] Furthermore, a connector 6 is fixedly connected to the left end of the outer surface of the protective sleeve body 1, and a threaded groove 7 is provided on the right side of the outer surface of the protective sleeve body 1. The shape and size of the connector 6 match the threaded groove 7, and the outer surface of the connector 6 is provided with threads that match the threaded groove 7.

[0019] By adopting the above technical solution, the two tubes can be extended and spliced ​​through the connector 6 and the threaded groove 7 according to the length requirements, or disassembled and shortened. The entire tube can be flexibly adjusted to the length of the cable by means of disassembly and assembly.

[0020] Furthermore, a first sealing gasket 8 is fixedly connected to the right side of the outer surface of the protective sleeve body 1, located outside the threaded groove 7, and a second sealing gasket 9 is fixedly connected to the right side of the outer surface of the protective sleeve body 1, located inside the threaded groove 7. The width of the first sealing gasket 8 and the second sealing gasket 9 is the same as the width of the left side of the surface of the protective sleeve body 1 excluding the connector 6, and both the first sealing gasket 8 and the second sealing gasket 9 are made of rubber.

[0021] By adopting the above technical solution, after the two protective sleeve bodies 1 are connected, the first sealing gasket 8 and the second sealing gasket 9 can perform double-layer sealing at the joint, thereby preventing water from seeping through the joint and corroding the cable.

[0022] Working Principle: When using this underwater telescopic anti-bending mechanical protective sleeve for cables, firstly, the main body 1 of the protective sleeve is placed entirely over the cable. Then, the two main bodies 1 can be extended and spliced ​​together or disassembled and shortened according to length requirements via connectors 6 and threaded grooves 7. This disassembly and assembly allows the entire tube to be flexibly adjusted to accommodate the cable's length. After the main body 1 completely covers the cable, it can be submerged in the designated underwater position for traction. The main body 1 and the inner cylinder 2 form a double-layer tube to protect the cable. When underwater at excessive depths, the impact of water currents or water pressure will only cause deformation and compression of the main body 1 of the protective sleeve. The interlayer 3 provides deformation space for the main body 1 of the protective sleeve, while the inner cylinder 2 will not deform. This avoids the situation where the entire tube deforms and compresses and damages the cable. Furthermore, the support ring 3 and the elastic ball 5 can support the pressure and prevent excessive compression and deformation of the main body 1 of the protective sleeve. This greatly improves the shape stability of the entire tube and enhances its protective capability. This is the working principle of the underwater telescopic anti-bending mechanical protective sleeve for cables.

Claims

1. A retractable, bend-resistant mechanical protective sleeve for underwater electrical cables, comprising a protective sleeve body (1), characterized in that, The inner surface of the protective sleeve body (1) is fixedly installed with an inner cylinder (2), the cavity between the inner cylinder (2) and the protective sleeve body (1) is set as a sandwich (3), and the outer surface of the inner cylinder (2) is uniformly distributed and fixedly connected with support rings (4). Elastic balls (5) are installed at intervals of the support rings (4), and the elastic balls (5) are set as rubber balls.

2. The retractable, bend-resistant mechanical protective sleeve for underwater electrical cables according to claim 1, characterized in that, The inner diameter of the inner cylinder (2) matches the opening diameter at both ends of the protective sleeve body (1), and the cable passes through the inner cylinder (2) and through the protective sleeve body (1).

3. The retractable, bend-resistant mechanical protective sleeve for underwater electrical cables according to claim 1, characterized in that, A connector (6) is fixedly connected to the left end of the outer surface of the protective sleeve body (1), and a threaded groove (7) is provided on the right side of the outer surface of the protective sleeve body (1).

4. The retractable, bend-resistant mechanical protective sleeve for underwater electrical cables according to claim 3, characterized in that, The shape and size of the connector (6) match the threaded groove (7), and the outer surface of the connector (6) is provided with a thread that matches the threaded groove (7).

5. The retractable, bend-resistant mechanical protective sleeve for underwater electrical cables according to claim 1, characterized in that, The outer right side of the outer surface of the protective sleeve body (1) is fixedly connected to the outside of the threaded groove (7) and the outer right side of the outer surface of the protective sleeve body (1) is fixedly connected to the inside of the threaded groove (7) and the second sealing gasket (9) is fixedly connected to the inside of the threaded groove (7).

6. The retractable, bend-resistant mechanical protective sleeve for underwater electrical cables according to claim 5, characterized in that, The width of the first sealing gasket (8) and the second sealing gasket (9) is the same as the width of the left side of the protective sleeve body (1) excluding the connector (6), and both the first sealing gasket (8) and the second sealing gasket (9) are made of rubber.

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