Cable for hydraulic engineering

Abstract

The application belongs to the cable technical field, disclose a kind of cable for water conservancy project, including cable body, the cable body is wrapped with annular air bag, the annular air bag outside is fixed and is communicated with inflation pipe, the inflation pipe end is provided with the end cap of inflation pipe snap fit, the cable body is provided with the fixing assembly for fixing annular air bag, the annular air bag is equipped with multiple and about the uniform setting of cable body outer wall.This application, multiple annular air bags cooperate, so that the cable body has played good protection and buffering effect, the cable body has played effective protection effect, and it is favorable to prolong the service life of cable.

Description

Technical Field

[0001] This invention relates to the field of cable technology, and in particular to a cable for water conservancy projects. Background Technology

[0002] Cables are tools composed of multiple conductors used to transmit electrical energy or signals. With the continuous progress of society, the use of electrical energy and signals has become increasingly widespread, and cables have become an indispensable part of our lives. Water is a basic element for human survival, and electricity is a major energy source for social development. Hydraulic engineering is an engineering science that regulates and utilizes water resources using engineering or non-engineering measures based on the study of the natural characteristics of water. In hydraulic engineering, cable installation is essential. Cables require protective sleeves during use to prevent damage and accidents, especially in hydraulic engineering projects where the seabed is often covered with silt.

[0003] Chinese invention patent application CN117497239A discloses a floating cable for power engineering in water conservancy projects, relating to the field of power cables. The floating cable is characterized by: an integrally formed floating tube at its top; a connector fixedly installed at the break point of the floating cable; multiple waterproofing layers (outer and inner) providing buoyancy; a lightweight material layer maximizing buoyancy in wet conditions; and a dual metal structure with fine and coarse filament layers minimizing deformation caused by wave impact, preventing significant bending and damage to the sheath or even breakage when floating with the waves. The connector connects the breaks of the two sections of the floating cable.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: the cables are easily impacted by ocean waves during use. When ocean waves carry hard objects such as tree branches and impact the cables, the cables are easily damaged. After prolonged use, the service life of the cables is greatly shortened. Therefore, it is necessary to improve the design of the relevant technologies. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a cable for water conservancy projects.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a cable for water conservancy projects, comprising a cable body, the cable body being wrapped with an annular air bladder, an inflation tube being fixed and connected to the outside of the annular air bladder, an end cap being provided at the end of the inflation tube for engaging with the inflation tube, a fixing component for fixing the annular air bladder being provided on the cable body, and multiple annular air bladders being provided and evenly distributed around the outer wall of the cable body.

[0007] By employing the above technical solution, multiple annular airbags work together to provide excellent protection and cushioning for the cable body, effectively protecting it and extending its service life. The fixing components ensure the stability of the annular airbags during use.

[0008] Furthermore, at the intersection of adjacent annular airbags, there are annular connecting parts that fit together. The fixing components are provided in multiple sets and are evenly distributed about the axis of the cable body. Each set of fixing components includes a fixing ring disposed between the inner side of the annular connecting part and the outer side of the cable body, a connecting rod fixed to the outer wall of the fixing ring, and a nut sleeved on the connecting rod and threadedly connected to the connecting rod. The inner wall of the fixing ring is fixed to the outer wall of the cable body. The connecting rod passes through two adjacent annular connecting parts and is clearance-fitted. The nut is located on the side of the annular connecting part away from the cable body and abuts against the annular connecting part.

[0009] By adopting the above technical solution, after tightening the nut, the fixing assembly consisting of the connecting rod, the fixing ring and the nut fixes the annular connection of the two adjacent annular airbags, thereby ensuring the stability of the connection between the annular airbag and the cable body, so that the annular airbag can fully play its role in protecting the cable body.

[0010] Furthermore, an annular fixing block is fixed on the side of the annular airbag near the cable body. Two annular fixing blocks are provided and symmetrically distributed on both sides of the inflation tube. An annular groove is provided on the outer wall of the annular fixing block. Multiple air vents are provided through the annular fixing block. A protective mechanism for protecting the inflation tube is provided on the outside of the annular airbag.

[0011] Furthermore, the protection mechanism includes a protection component, which includes a first semicircular ring that abuts against the outer wall of the inflated annular airbag and a second semicircular ring that is hinged to one end of the first semicircular ring and abuts against the outer wall of the inflated annular airbag. The inner walls of the first and second semicircular rings are integrally formed with a semicircular body that mates with an annular groove. The free ends of the first and second semicircular rings are fixed with connecting plates. The protection mechanism also includes a locking component for connecting and fixing the two connecting plates.

[0012] By adopting the above technical solution, under the action of the locking component, the first semi-circular ring and the second semi-circular ring cooperate and play a good protective role for the inflation tube. The semi-circular ring body cooperates with the annular groove, which on the one hand enhances the stability of the first semi-circular ring and the second semi-circular ring during use, and on the other hand reduces the probability of a small amount of water entering the first semi-circular ring and the second semi-circular ring, thereby causing the inflation tube to be exposed or even water to enter.

[0013] Furthermore, the connecting plate has a U-shaped cross-section, and the locking assembly includes a threaded rod hinged to the plate bodies on both sides of one of the connecting plates and a nut sleeved on the threaded rod and threadedly connected.

[0014] By adopting the above technical solution, after tightening the nut, the first and second semi-circular rings cooperate and provide good protection for the inflation tube. After loosening the nut, the first and second semi-circular rings can be disassembled.

[0015] Furthermore, the outer side of the cable body is fitted with a protective cover assembly for protecting the annular airbag. The protective cover assembly includes an inner cover and an outer cover, which are alternately arranged. The inner cover and the outer wall near the end of the inner cover are press-fitted with the inner wall of the outer cover. The inner cover is provided with a limiting component for fixing the connecting rod.

[0016] By adopting the above technical solution, the inner and outer protective covers work together to provide good protection for the annular airbag, reduce the probability of the annular airbag being damaged by impact, further improve the protection of the cable, and help extend the service life of the cable.

[0017] Furthermore, a connecting groove communicating with the end of the inner protective cover is provided on the inner wall of the inner protective cover at the position corresponding to the connecting rod. The connecting rod is slidably engaged with the connecting groove. A receiving groove communicating with the connecting groove is provided inside the inner protective cover. The distance between the side of the receiving groove away from the opening end of the connecting groove and the side of the inner wall of the connecting groove away from the opening end of the connecting groove is equal to the diameter of the connecting rod.

[0018] The limiting assembly includes a spring fixed to the inner wall of the receiving groove on the side away from the axis of the inner cover, and a limiting post fixed to the free end of the spring. The side of the limiting post away from the opening end of the connecting groove abuts against the side of the connecting rod near the opening end of the connecting groove. An inverted inclined surface is provided at the intersection between the end of the limiting post away from the spring and the side of the limiting post near the opening end of the connecting groove.

[0019] By adopting the above technical solution, the inverted inclined surface allows the operator to push the inner cover, thereby squeezing the limiting post into the receiving groove by the connecting rod. Subsequently, the limiting post is reset under the elastic force of the spring, thus limiting the connecting rod and ensuring the stability of the inner cover during use.

[0020] Furthermore, a sealing ring is provided at the intersection between the outer wall of the inner protective cover and the end of the outer protective cover. The annular airbag includes an outer layer and an inner layer. The outer layer is made of a rainproof and wear-resistant fabric, such as that used in umbrellas, and the inner layer is made of a waterproof film.

[0021] By adopting the above technical solution, the sealing ring effectively seals the connection between the inner and outer protective covers, reducing the probability of water entering the inner and outer protective covers and accelerating the aging of the annular airbag. By defining the layer structure and composition of the annular airbag, the structural stability and durability of the annular airbag are ensured, reducing the probability of water ingress due to partial damage to the inner or outer protective covers, thus preventing accelerated aging of the annular airbag.

[0022] In summary, the present invention has the following beneficial effects:

[0023] 1. In this application, multiple annular airbags work together to provide excellent protection and cushioning for the cable body, effectively protecting it and extending its service life. The fixing components ensure the stability of the annular airbags during use.

[0024] 2. In this application, after tightening the nut, the fixing assembly consisting of the connecting rod, the fixing ring and the nut fixes the annular connection of two adjacent annular airbags, thereby ensuring the stability of the connection between the annular airbag and the cable body, so as to facilitate the annular airbag to fully play its role in protecting the cable body.

[0025] 3. In this application, the inner and outer sheaths work together to provide good protection for the annular airbag, reduce the probability of the annular airbag being damaged by impact, further improve the protection of the cable, and help extend the service life of the cable. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0027] Figure 2 yes Figure 1 A cross-sectional view of the protective shield assembly;

[0028] Figure 3 yes Figure 1 A sectional view;

[0029] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0030] Figure 5 This is a schematic diagram of the structure of the protective mechanism in an embodiment of the present invention.

[0031] In the diagram: 1. Cable body; 2. Annular airbag; 21. Inflation tube; 211. End cap; 22. Annular connection part; 3. Fixing component; 31. Fixing ring; 32. Connecting rod; 33. Nut; 4. Annular fixing block; 41. Annular groove; 411. Vent hole; 5. Protection mechanism; 51. Protection component; 511. First semi-circular ring; 512. Second semi-circular ring; 52. Locking component; 521. Threaded rod; 522. Nut; 6. Semi-circular ring body; 7. Connecting plate; 8. Protective cover component; 81. Inner protective cover; 811. Connecting groove; 812. Receiving groove; 82. Outer protective cover; 9. Limiting component; 91. Spring; 92. Limiting post; 921. Inclined bevel; 10. Sealing ring. Detailed Implementation

[0032] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0033] like Figure 1-5 As shown in the embodiment of this application, a cable for water conservancy projects is disclosed, including a cable body 1, an annular air bladder 2 wrapped around the cable body 1, an inflation tube 21 fixed and connected to the outside of the annular air bladder 2, an end cap 211 that engages with the inflation tube 21 at the end, a fixing component 3 for fixing the annular air bladder 2 is provided on the cable body 1, and multiple annular air bladders 2 are provided and evenly distributed around the outer wall of the cable body 1.

[0034] Multiple annular airbags 2 work together to provide good protection and cushioning for the cable body 1, effectively protecting it and extending its service life. The fixing component 3 ensures the stability of the annular airbags 2 during use.

[0035] Annular connecting parts 22 that fit together are provided at the intersection of adjacent annular airbags 2. The fixing components 3 are provided in multiple sets and are evenly distributed about the axis of the cable body 1. Each fixing component 3 includes a fixing ring 31 located between the inner side of the annular connecting part 22 and the outer side of the cable body 1, a connecting rod 32 fixed on the outer wall of the fixing ring 31, and a nut 33 sleeved on the connecting rod 32 and threadedly connected to the connecting rod 32. The inner wall of the fixing ring 31 is fixed to the outer wall of the cable body 1. The connecting rod 32 passes through two adjacent annular connecting parts 22 and is clearance-fitted. The nut 33 is located on the side of the annular connecting part 22 away from the cable body 1 and abuts against the annular connecting part 22.

[0036] After tightening the nut 33, the fixing assembly 3, consisting of the connecting rod 32, the fixing ring 31 and the nut 33, fixes the annular connection part 22 of the two adjacent annular airbags 2, thereby ensuring the stability of the connection between the annular airbag 2 and the cable body 1, so that the annular airbag 2 can fully play its role in protecting the cable body 1.

[0037] An annular fixing block 4 is fixed to one side of the annular airbag 2 near the cable body 1. Two annular fixing blocks 4 are provided and symmetrically distributed on both sides of the inflation tube 21. An annular groove 41 is provided on the outer wall of the annular fixing block 4. Multiple ventilation holes 411 are provided through the annular fixing block 4. A protective mechanism 5 for protecting the inflation tube 21 is provided on the outside of the annular airbag 2. The protective mechanism 5 includes a protective component 51, which includes a first semi-circular ring 511 that abuts against the outer wall of the inflated annular airbag 2 and a second semi-circular ring 512 that is hinged to one end of the first semi-circular ring 511 and abuts against the outer wall of the inflated annular airbag 2. The inner walls of the first semi-circular ring 511 and the second semi-circular ring 512 are integrally formed with a semi-circular ring body 6 that cooperates with the annular groove 41. A connecting plate 7 is fixed to the free end of the first semi-circular ring 511 and the free end of the second semi-circular ring 512. The protective mechanism 5 also includes a locking component 52 for connecting and fixing the two connecting plates 7.

[0038] Under the action of the locking component 52, the first semicircular ring 511 and the second semicircular ring 512 cooperate and play a good protective role for the inflation tube 21. The semicircular ring body 6 cooperates with the annular groove 41, which on the one hand enhances the stability of the first semicircular ring 511 and the second semicircular ring 512 during use, and on the other hand reduces the probability of a small amount of water entering the first semicircular ring 511 and the second semicircular ring 512, thereby causing the inflation tube 21 to be exposed or even water to enter.

[0039] The connecting plate 7 has a U-shaped cross-section. The locking assembly 52 includes a threaded rod 521 hinged to both sides of one of the connecting plates 7, and a nut 522 sleeved on and threadedly connected to the threaded rod 521. After tightening the nut 522, the first semi-circular ring 511 and the second semi-circular ring 512 cooperate and provide good protection for the inflation tube 21. After loosening the nut 522, the first semi-circular ring 511 and the second semi-circular ring 512 can be disassembled.

[0040] The cable body 1 is fitted with a protective cover assembly 8 to protect the annular airbag 2. The protective cover assembly 8 includes an inner cover 81 and an outer cover 82, which are alternately arranged. The inner cover 81 and the outer cover 82 are press-fitted together near the end of the outer cover 81 with the inner wall of the outer cover 82. A limiting assembly 9 for fixing the connecting rod 32 is provided on the inner cover 81. The inner cover 81 and the outer cover 82 work together to provide good protection for the annular airbag 2, reduce the probability of the annular airbag 2 being damaged by impact, further improve the protection of the cable, and help extend the service life of the cable.

[0041] A connecting groove 811, communicating with the end of the inner cover 81, is provided on the inner wall of the inner cover 81 at a position corresponding to the connecting rod 32. The connecting rod 32 slides in the connecting groove 811. A receiving groove 812, communicating with the connecting groove 811, is provided inside the inner cover 81. The distance between the side of the receiving groove 812 away from the opening end of the connecting groove 811 and the side of the inner wall of the connecting groove 811 away from the opening end of the connecting groove 811 is equal to the diameter of the connecting rod 32. The limiting component 9 includes a spring 91 fixed to the inner wall of the receiving groove 812 away from the axis of the inner cover 81 and a limiting post 92 fixed to the free end of the spring 91. The side of the limiting post 92 away from the opening end of the connecting groove 811 abuts against the side of the connecting rod 32 near the opening end of the connecting groove 811. An inverted inclined surface 921 is provided at the intersection between the end of the limiting post 92 away from the spring 91 and the side of the limiting post 92 near the opening end of the connecting groove 811.

[0042] The inverted inclined surface 921 allows the operator to push the inner cover 81, thereby causing the connecting rod 32 to press the limiting post 92 into the receiving groove 812. Subsequently, the limiting post 92 is reset under the elastic force of the spring 91, thus limiting the connecting rod 32 and ensuring the stability of the inner cover 81 during use.

[0043] A sealing ring 10 is provided at the intersection between the outer wall of the inner protective cover 81 and the end of the outer protective cover 82. The annular airbag 2 includes an outer layer and an inner layer (the outer layer and the inner layer are not shown in the figure). The outer layer is made of a rainproof and wear-resistant fabric, such as an umbrella, and the inner layer is made of a waterproof membrane.

[0044] The sealing ring 10 effectively seals the connection between the inner cover 81 and the outer cover 82, reducing the probability of water entering the inner cover 81 and the outer cover 82 and accelerating the aging of the annular airbag 2. By defining the layer structure and composition of the annular airbag 2, the structural stability and durability of the annular airbag 2 are ensured, reducing the probability of water ingress due to partial damage to the inner cover 81 or the outer cover 82, thus accelerating the aging of the annular airbag 2.

[0045] In this embodiment, the operating principle of a cable for water conservancy projects is as follows: multiple annular airbags 2 work together to provide good protection and buffering for the cable body 1, effectively protecting the cable body 1 and extending its service life. The fixing component 3 ensures the stability of the annular airbags 2 during use.

[0046] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A cable for water conservancy projects, comprising a cable body (1), characterized in that: The cable body (1) is wrapped with an annular airbag (2). An inflation tube (21) is fixed and connected to the outside of the annular airbag (2). An end cap (211) is provided at the end of the inflation tube (21) to engage with the inflation tube (21). A fixing component (3) for fixing the annular airbag (2) is provided on the cable body (1). Multiple annular airbags (2) are provided and are evenly distributed around the outer wall of the cable body (1). Annular connecting parts (22) that fit together are provided at the intersection of adjacent annular airbags (2). The fixing components (3) are provided in multiple sets and are evenly distributed about the axis of the cable body (1). Each set of fixing components (3) includes a fixing ring (31) disposed between the inner side of the annular connecting part (22) and the outer side of the cable body (1), a connecting rod (32) fixed on the outer wall of the fixing ring (31), and a nut (33) sleeved on the connecting rod (32) and threadedly connected to the connecting rod (32). The inner wall of the fixing ring (31) is fixed to the outer wall of the cable body (1). The connecting rod (32) passes through two adjacent annular connecting parts (22) and is clearance-fitted. The nut (33) is located on the side of the annular connecting part (22) away from the cable body (1) and abuts against the annular connecting part (22). The annular airbag (2) is fixed with an annular fixing block (4) on the side near the cable body (1). There are two annular fixing blocks (4) symmetrically distributed on both sides of the inflation tube (21). The outer wall of the annular fixing block (4) is provided with an annular groove (41). Multiple air holes (411) are provided through the annular fixing block (4). The outer side of the annular airbag (2) is provided with a protective mechanism (5) for protecting the inflation tube (21). The protection mechanism (5) includes a protection component (51), which includes a first semicircular ring (511) that abuts against the outer wall of the inflated annular airbag (2) and a second semicircular ring (512) that is hinged to one end of the first semicircular ring (511) and abuts against the outer wall of the inflated annular airbag (2). The inner walls of the first semicircular ring (511) and the second semicircular ring (512) are integrally formed with a semicircular ring body (6) that cooperates with the annular groove (41). The free ends of the first semicircular ring (511) and the free ends of the second semicircular ring (512) are fixed with connecting plates (7). The protection mechanism (5) also includes a locking component (52) for connecting and fixing the two connecting plates (7).

2. The cable for water conservancy projects according to claim 1, characterized in that: The connecting plate (7) has a U-shaped cross-section, and the locking assembly (52) includes a threaded rod (521) hinged to the plate body on both sides of one of the connecting plates (7) and a nut (522) sleeved on the threaded rod (521) and threadedly connected.

3. The cable for water conservancy projects according to claim 2, characterized in that: The cable body (1) is fitted with a protective cover assembly (8) for protecting the annular airbag (2). The protective cover assembly (8) includes an inner cover (81) and an outer cover (82). The inner cover (81) and the outer cover (82) are alternately arranged. The position of the inner cover (81) and the outer wall near the end of the inner cover (81) are press-fitted with the inner wall of the outer cover (82). The inner cover (81) is provided with a limiting assembly (9) for fixing the connecting rod (32).

4. The cable for water conservancy projects according to claim 3, characterized in that: The inner wall of the inner cover (81) is provided with a connecting groove (811) that communicates with the end of the inner cover (81) at the position corresponding to the connecting rod (32). The connecting rod (32) is slidably engaged with the connecting groove (811). The inner cover (81) is provided with a receiving groove (812) that communicates with the connecting groove (811). The distance between the side of the receiving groove (812) away from the opening end of the connecting groove (811) and the side of the inner wall of the connecting groove (811) away from the opening end of the connecting groove (811) is equal to the diameter of the connecting rod (32). The limiting component (9) includes a spring (91) fixed to the inner wall of the receiving groove (812) on the side away from the axis of the inner cover (81) and a limiting post (92) fixed to the free end of the spring (91). The side of the limiting post (92) away from the opening end of the connecting groove (811) abuts against the side of the connecting rod (32) near the opening end of the connecting groove (811). An inverted inclined surface (921) is provided at the intersection between the end of the limiting post (92) away from the spring (91) and the side of the limiting post (92) near the opening end of the connecting groove (811).

5. The cable for water conservancy projects according to claim 3, characterized in that: A sealing ring (10) is provided at the intersection between the outer wall of the inner protective cover (81) and the end of the outer protective cover (82). The annular airbag (2) includes an outer layer and an inner layer. The outer layer is made of a rainproof and wear-resistant fabric, such as an umbrella, and the inner layer is made of a waterproof film.

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