Cable for hydraulic engineering

Abstract

The invention belongs to the technical field of cables, and discloses a water conservancy project cable which comprises a cable body, the cable body is wrapped with an annular air bag, an inflation pipe is fixed and communicated to the outer side of the annular air bag, and an end cap clamped and matched with the inflation pipe is arranged at the end of the inflation pipe. The cable body is provided with a fixing assembly used for fixing the annular air bags, and the multiple annular air bags are evenly arranged relative to the outer wall of the cable body. According to the invention, the plurality of annular air bags cooperate with each other, so that the cable body is well protected and buffered, the cable body is effectively protected, and the service life of the cable is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and in particular to a cable for water conservancy projects. Background Art

[0002] Cable is a tool composed of multiple conductors used to transmit electrical energy or electrical signals. With the continuous progress of society, the use of electrical energy and electrical signals has become more and more common, and cables have become an indispensable part of our lives. Water is the basic element for human survival, and electricity is the main energy source for social development. The discipline of water conservancy and hydropower engineering is an engineering science that regulates and utilizes water resources by engineering or non-engineering measures based on the study of the natural characteristics of water. In water conservancy and hydropower engineering, the installation of cables is indispensable. Cables need protective covers when in use to prevent accidents caused by cable damage, especially in water conservancy and hydropower engineering, because the bottom of the water is often covered with silt.

[0003] A Chinese invention patent application with publication number CN117497239A discloses a floating cable for electric power in a water conservancy project, which relates to the field of electric power cables, including a floating cable, characterized in that: a floating tube is integrally formed on the top of the floating cable; a connector is fixedly arranged at the break of the floating cable, and multiple waterproofing can be performed through an outer water-blocking layer and an inner water-blocking layer. The lightweight material layer here can provide buoyancy to the maximum extent under wet conditions, and then due to the design of a double metal structure of a thin filament interlayer and a thick filament interlayer, the deformation caused by the impact of water waves can be minimized when the water wave impacts, and the floating cable can be prevented from bending at a large angle when floating with the water waves, resulting in damage to the skin or even breakage, and the break of the two sections of the floating cable is connected by the connector.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: the cable is easily impacted by waves during use. When the waves roll up hard objects such as tree branches to impact the cable, the outside of the cable is easily damaged. After long-term use, the service life of the cable is greatly shortened. Therefore, it is necessary to improve the design of the related technologies. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a cable for water conservancy engineering.

[0006] The above technical purpose of the present invention is achieved through the following technical solutions: a cable for water conservancy projects, including a cable body, the cable body is wrapped with an annular airbag, an inflation tube is fixed to and connected to the outside of the annular airbag, an end cap for snap-fitting with the inflation tube is provided at the end of the inflation tube, a fixing component for fixing the annular airbag is provided on the cable body, and a plurality of annular airbags are provided and are evenly arranged about the outer wall of the cable body.

[0007] By adopting the above technical solution, multiple annular airbags cooperate to provide good protection and buffering for the cable body, effectively protect the cable body, and help extend the service life of the cable. The fixing component ensures the stability of the annular airbag during use.

[0008] Furthermore, annular connecting parts that fit together are provided at the intersections of adjacent annular airbags, and the fixing components are provided in multiple groups and are evenly distributed about the axis of the cable body, and each group of the fixing components includes a fixing ring arranged between the inner side of the annular connecting part and the outer side of the cable body, a connecting rod fixed on 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, and the nut is located on the side of the annular connecting part away from the cable body and is tightly pressed against the annular connecting part.

[0009] By adopting the above technical solution, after tightening the nut, the fixing assembly composed of the connecting rod, the fixing ring and the nut fixes the annular connecting parts of the two adjacent annular airbags, thereby ensuring the stability of the connection between the annular airbags and the cable body, thereby facilitating the annular airbags to fully play their role in protecting the cable body.

[0010] Furthermore, an annular fixing block is fixed on one side of the annular airbag close to the cable body, and 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, and a plurality of air holes are penetrated on 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 is tightly pressed against the inflated outer wall of the annular airbag and a second semicircular ring that is hinged to one end of the first semicircular ring and is tightly pressed against the inflated outer wall of the annular airbag, the inner wall of the first semicircular ring and the inner wall of the second semicircular ring are both integrally formed with a semicircular body that cooperates with the annular groove, the free ends of the first semicircular ring and the free ends of the second semicircular ring are both fixed with connecting plates, and 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 assembly, the first semicircular ring and the second semicircular ring cooperate and provide good protection for the inflation tube. The semicircular ring body cooperates with the annular groove, which on the one hand enhances the stability of the first semicircular ring and the second semicircular ring during use, and on the other hand reduces the probability of a small amount of moisture entering the first semicircular ring and the second semicircular ring, thereby causing the inflation tube to be exposed or even flooded.

[0013] Furthermore, the cross section of the connecting plate is U-shaped, and the locking assembly includes a threaded rod hinged to the plate body 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 semicircular ring and the second semicircular ring cooperate and play a good protective role on the inflation tube. After loosening the nut, the first semicircular ring and the second semicircular ring can be disassembled.

[0015] Furthermore, a shield assembly for protecting the annular airbag is provided on the outer side of the cable body, and the shield assembly includes an inner shield and an outer shield, and the inner shield and the outer shield are alternately arranged, and the inner shield and the outer wall are interference fit with the inner wall of the outer shield near the end of the inner shield, and the inner shield is provided with a limit assembly for fixing the connecting rod.

[0016] By adopting the above technical scheme, the inner shield and the outer shield cooperate with each other 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 to extend the service life of the cable.

[0017] Furthermore, a connecting groove connected to the end of the inner shield is provided at a position corresponding to the connecting rod on the inner wall of the inner shield, the connecting rod is slidably matched with the connecting groove, and a receiving groove connected to the connecting groove is provided in the inner shield, and the distance between a side of the receiving groove away from the opening end of the connecting groove and a 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; The limiting assembly includes a spring fixed to the inner wall of the accommodating groove away from the axis of the inner shield and a limiting column fixed to the free end of the spring, the side of the limiting column away from the open end of the connecting groove abuts against the side of the connecting rod close to the open end of the connecting groove, and an inverted inclined surface is provided at the intersection between the end of the limiting column away from the spring and the side of the limiting column close to the open end of the connecting groove.

[0018] By adopting the above technical solution and the setting of the inverted inclined surface, it is convenient for the staff to push the inner shield so that the connecting rod squeezes the limiting column into the receiving groove. Subsequently, the limiting column is reset under the elastic force of the spring, thereby limiting the connecting rod and ensuring the stability of the inner shield during use.

[0019] Furthermore, a sealing rubber ring is provided at the intersection between the outer wall of the inner shield and the end of the outer shield. The annular airbag includes an outer layer and an inner layer. The outer layer is made of rainproof and wear-resistant fabric such as an umbrella, and the inner layer is made of a waterproof film.

[0020] By adopting the above technical solution and setting the sealing rubber ring, a good sealing effect is achieved at the connection between the inner and outer shields, reducing the probability of water entering the inner and outer shields and accelerating the aging of the annular airbag. The layer structure and composition of the annular airbag are limited to ensure the structural stability and durability of the annular airbag, reducing the probability of water entering due to local damage of the inner or outer shield, thereby accelerating the aging of the annular airbag.

[0021] In summary, the present invention has the following beneficial effects: 1. In this application, multiple annular airbags work together to provide good protection and buffering for the cable body, effectively protecting the cable body and helping to extend the service life of the cable. The fixing assembly ensures the stability of the annular airbag during use; 2. In the present application, after tightening the nut, the fixing assembly consisting of the connecting rod, the fixing ring and the nut fixes the annular connecting parts 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; 3. In the present application, the inner shield and the outer shield cooperate with each other 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 yes Figure 1 A cross-sectional view of the shield assembly; Figure 3 yes Figure 1 A cross-sectional view of Figure 4 yes Figure 3 The enlarged schematic diagram of point A in the middle; Figure 5 It is a structural schematic diagram for highlighting the protection mechanism according to an embodiment of the present invention.

[0023] In the figure: 1. cable body; 2. annular airbag; 21. inflation tube; 211. end cap; 22. annular connecting part; 3. fixing assembly; 31. fixing ring; 32. connecting rod; 33. nut; 4. annular fixing block; 41. annular groove; 411. air vent; 5. protection mechanism; 51. protection assembly; 511. first semicircular ring; 512. second semicircular ring; 52. locking assembly; 521. threaded rod; 522. nut; 6. semicircular ring body; 7. connecting plate; 8. shield assembly; 81. inner shield; 811. connecting groove; 812. accommodating groove; 82. outer shield; 9. limiting assembly; 91. spring; 92. limiting column; 921. inverted inclined surface; 10. sealing rubber ring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0025] like Figure 1-5 As shown, an embodiment of the present application discloses a cable for water conservancy engineering, including a cable body 1, an annular airbag 2 is wrapped around the cable body 1, an inflation tube 21 is fixed to the outside of the annular airbag 2 and connected to the inflation tube 21, an end cap 211 which is snap-fitted with the inflation tube 21 is provided at the end of the inflation tube 21, a fixing component 3 for fixing the ring 31-shaped airbag 2 is provided on the cable body 1, and a plurality of annular airbags 2 are provided and are evenly arranged about the outer wall of the cable body 1.

[0026] The multiple annular airbags 2 cooperate to provide good protection and buffering for the cable body 1, effectively protecting the cable body 1 and helping to extend the service life of the cable. The fixing assembly 3 ensures the stability of the annular airbag 2 during use.

[0027] An annular connecting portion 22 that fits together is provided at the intersection between adjacent annular airbags 2. The fixing components 3 are provided in multiple groups and are evenly distributed about the axis of the cable body 1. Each group of fixing components 3 includes a fixing ring 31 arranged between the inner side of the annular connecting portion 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 portions 22 and is clearance-fitted, and the nut 33 is located on the side of the annular connecting portion 22 away from the cable body 1 and is tightly pressed against the annular connecting portion 22.

[0028] After tightening the nut 33, the fixing assembly 3 composed of the connecting rod 32, the fixing ring 31 and the nut 33 fixes the annular connecting parts 22 of two adjacent annular airbags 2, thereby ensuring the stability of the connection between the annular airbags 2 and the cable body 1, so that the annular airbags 2 can fully play its role in protecting the cable body 1.

[0029] An annular fixing block 4 is fixed to one side of the annular airbag 2 close to 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. A plurality of air holes 411 are provided through the annular fixing block 4. A protection mechanism 5 for protecting the inflation tube 21 is provided on the outer side of the annular airbag 2. The protection mechanism 5 includes a protection component 51. The protection component 51 includes a first semicircular ring 511 which is pressed against the outer wall of the annular airbag 2 after swelling, and a second semicircular ring 512 which is hinged to one end of the first semicircular ring 511 and is pressed against the outer wall of the annular airbag 2 after swelling. The inner wall of the first semicircular ring 511 and the inner wall of the second semicircular ring 512 are integrally formed with a semicircular body 6 which 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.

[0030] Under the action of the locking assembly 52, the first semicircular ring 511 cooperates with the second semicircular ring 512 and provides good protection 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 moisture entering the first semicircular ring 511 and the second semicircular ring 512, thereby causing the inflation tube 21 to be exposed or even flooded.

[0031] The cross section of the connecting plate 7 is U-shaped, 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. After tightening the nut 522, the first semicircular ring 511 and the second semicircular ring 512 cooperate and play a good role in protecting the inflation tube 21. After loosening the nut 522, the first semicircular ring 511 and the second semicircular ring 512 can be disassembled.

[0032] The outer side of the cable body 1 is provided with a shield assembly 8 for protecting the annular airbag 2. The shield assembly 8 includes an inner shield 81 and an outer shield 82. The inner shield 81 and the outer shield 82 are arranged alternately. The inner shield 81 and the outer wall near the end of the inner shield 81 are interference-fitted with the inner wall of the outer shield 82. The inner shield 81 is provided with a limit assembly 9 for fixing the connecting rod 32. The inner shield 81 cooperates with the outer shield 82 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 to extend the service life of the cable.

[0033] A connection groove 811 communicating with the end of the inner shield 81 is provided at a position corresponding to the inner wall of the inner shield 81 and the connecting rod 32, and the connecting rod 32 is slidably matched with the connection groove 811. A receiving groove 812 communicating with the connecting groove 811 is provided in the inner shield 81, and the distance between the side of the receiving groove 812 away from the open end of the connecting groove 811 and the side of the inner wall of the connecting groove 811 away from the open end of the connecting groove 811 is equal to the diameter of the connecting rod 32. The limiting assembly 9 includes a spring 91 fixed to the inner wall of the receiving groove 812 away from the axis of the inner shield 81 and a limiting column 92 fixed to the free end of the spring 91, and the side of the limiting column 92 away from the open end of the connecting groove 811 abuts against the side of the connecting rod 32 close to the open end of the connecting groove 811, and an inverted inclined surface 921 is provided at the intersection between the end of the limiting column 92 away from the spring 91 and the side of the limiting column 92 close to the open end of the connecting groove 811.

[0034] The setting of the inverted inclined surface 921 makes it easy for the staff to push the inner shield 81 so that the connecting rod 32 squeezes the limiting column 92 into the accommodating groove 812. Subsequently, the limiting column 92 is reset under the elastic force of the spring 91, thereby limiting the connecting rod 32 and ensuring the stability of the inner shield 81 during use.

[0035] A sealing rubber ring 10 is provided at the intersection between the outer wall of the inner shield 81 and the end of the outer shield 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 rainproof and wear-resistant fabric such as an umbrella, and the inner layer is made of a waterproof film.

[0036] The provision of the sealing rubber ring 10 provides a good sealing effect on the connection between the inner shield 81 and the outer shield 82, reducing the probability of water entering the inner shield 81 and the outer shield 82 and accelerating the aging of the annular airbag 2. The layer structure and composition of the annular airbag 2 are limited to ensure the structural stability and durability of the annular airbag 2, reducing the probability of water entering due to partial damage of the inner shield 81 or the outer shield 82, thereby accelerating the aging of the annular airbag 2.

[0037] The use principle of a water conservancy engineering cable in this embodiment is as follows: multiple annular airbags 2 cooperate to provide good protection and buffering for the cable body 1, effectively protecting the cable body 1 and helping to extend the service life of the cable. The fixing component 3 ensures the stability of the annular airbag 2 during use.

[0038] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A cable for hydraulic engineering, comprising a cable body (1), characterized in that: The cable body (1) is wrapped with an annular airbag (2), an outer side of the annular airbag (2) is fixed with and connected to an inflation tube (21), an end cap (211) for snap-fitting with the inflation tube (21) is provided at the end of the inflation tube (21), a fixing component (3) for fixing the ring (31)-shaped airbag (2) is provided on the cable body (1), and a plurality of the annular airbags (2) are provided and are evenly arranged with respect to the outer wall of the cable body (1).

2. A water conservancy engineering cable according to claim 1, characterized in that: An annular connecting portion (22) that fits together is arranged at the intersection between adjacent annular airbags (2); the fixing assembly (3) is provided with a plurality of groups and is evenly distributed about the axis of the cable body (1); each group of the fixing assembly (3) comprises a fixing ring (31) arranged between the inner side of the annular connecting portion (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 portions (22) and is loosely fitted; the nut (33) is located on a side of the annular connecting portion (22) away from the cable body (1) and is tightly pressed against the annular connecting portion (22).

3. A water conservancy engineering cable according to claim 2, characterized in that: An annular fixing block (4) is fixed on one side of the annular airbag (2) close to the cable body (1); the annular fixing block (4) is provided with two 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); a plurality of air holes (411) are provided through the annular fixing block (4); and a protection mechanism (5) for protecting the inflation tube (21) is provided on the outer side of the annular airbag (2).

4. A water conservancy engineering cable according to claim 3, characterized in that: The protection mechanism (5) comprises a protection component (51), the protection component (51) comprising a first semicircular ring (511) pressed against the outer wall of the inflated annular airbag (2) and a second semicircular ring (512) hinged to one end of the first semicircular ring (511) and pressed against the outer wall of the inflated annular airbag (2), the inner wall of the first semicircular ring (511) and the inner wall of the second semicircular ring (512) are both integrally formed with a semicircular 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 both fixed with connecting plates (7), and the protection mechanism (5) also comprises a locking component (52) for connecting and fixing the two connecting plates (7).

5. A water conservancy engineering cable according to claim 4, characterized in that: The cross section of the connecting plate (7) is U-shaped, and the locking assembly (52) comprises a threaded rod (521) hinged to the plate bodies on both sides of one of the connecting plates (7) and a nut (522) sleeved on the threaded rod (521) and threadedly connected.

6. A cable for water conservancy engineering according to claim 5, characterized in that: The outer side of the cable body (1) is provided with a shield assembly (8) for protecting the annular airbag (2), the shield assembly (8) comprising an inner shield (81) and an outer shield (82), the inner shield (81) and the outer shield (82) being arranged alternately, the inner shield (81) and the outer wall of the outer shield (82) having an interference fit at a position close to the end of the inner shield (81), and the inner shield (81) is provided with a limit assembly (9) for fixing the connecting rod (32).

7. A water conservancy engineering cable according to claim 6, characterized in that: A connecting groove (811) communicating with the end of the inner shield (81) is provided at a position of the inner wall of the inner shield (81) corresponding to the connecting rod (32); the connecting rod (32) and the connecting groove (811) are slidably matched; a receiving groove (812) communicating with the connecting groove (811) is provided in the inner shield (81); the distance between a side of the receiving groove (812) away from the opening end of the connecting groove (811) and a 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 assembly (9) comprises a spring (91) fixed to the inner wall of the accommodating groove (812) away from the axis of the inner shield (81) and a limiting column (92) fixed to the free end of the spring (91); the side of the limiting column (92) away from the open end of the connecting groove (811) abuts against the side of the connecting rod (32) close to the open end of the connecting groove (811); and an inverted inclined surface (921) is provided at the intersection between the end of the limiting column (92) away from the spring (91) and the side of the limiting column (92) close to the open end of the connecting groove (811).

8. A cable for water conservancy engineering according to claim 6, characterized in that: A sealing rubber ring (10) is provided at the intersection between the outer wall of the inner shield (81) and the end of the outer shield (82). The annular airbag (2) comprises an outer layer and an inner layer. The outer layer is made of rainproof and wear-resistant fabric such as an umbrella, and the inner layer is made of a waterproof film.

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