Power cable protection tube

Abstract

The invention relates to the technical field of power cable protection pipes, and discloses a power cable protection pipe, which comprises a first pipe body, a second pipe body and a connecting structure, the connecting structure comprises a plurality of connecting rings, the plurality of connecting rings are rotationally connected with one another, one connecting ring is rotationally connected to the first pipe body, and the other connecting ring is rotationally connected to the second pipe body. A containing cavity is formed in the connecting ring, a fixed air bag is arranged in the containing cavity, a starting piece is arranged in the containing cavity and used for releasing gas to fill the fixed air bag, and the connecting ring can rotate to meet rotation in the first pipe body and the second pipe body, so that the connecting ring can protect a cable; and meanwhile, the starting piece is started and releases gas, the gas can fill the fixed air bag, and the fixed air bag can fill the containing cavity, so that the position of the connecting ring is difficult to change again by external pressure, the connecting ring can stably protect the cable, and the protection effect of the connecting ring on the cable is improved.

Description

Technical Field

[0001] This application relates to the technical field of power cable protection pipes, and in particular to a power cable protection pipe. Background Technology

[0002] In power transmission, urban distribution networks, municipal construction, and various engineering projects, power cables are typically buried underground or laid in exposed environments. To ensure their long-term safe and stable operation and prevent damage from mechanical impact, chemical corrosion, environmental stress, or biological attack, cable protection pipes are commonly used for external protection. The protective tube is equipped with a fixing ring, and two adjacent fixing rings are fixedly connected by bolts to fix the two protective tubes.

[0003] In some cases, landslides or heavy machinery crushing can cause uneven and large displacements in the ground. Excessive pressure can damage two adjacent fixing rings, causing the two protective pipes to swing or even become misaligned. This makes it difficult for the protective pipes to protect the cable and affects the subsequent use of the cable. Summary of the Invention

[0004] To address the issue of swaying and misalignment between adjacent protective pipes, this application provides a power cable protective pipe.

[0005] This application provides a power cable protection pipe, which adopts the following technical solution: A power cable protection pipe includes a first pipe body, a second pipe body, and a connecting structure. The connecting structure includes multiple connecting rings that are rotatably connected to each other. One connecting ring is rotatably connected to the first pipe body, and another connecting ring is rotatably connected to the second pipe body. Each connecting ring has a receiving cavity, and the receiving cavity is provided with a fixing airbag. An actuating element is provided inside the receiving cavity, and the actuating element is used to release gas to fill the fixing airbag.

[0006] By adopting the above technical solution, when landslides or heavy machinery compaction occur, the first and second pipe bodies may experience relative displacement, or even misalignment. Because the connecting ring is rotatably connected to the first pipe body, and another connecting ring is rotatably connected to the second pipe body, the connecting ring can rotate to accommodate the rotation within the first and second pipe bodies. This allows the connecting ring to protect the cable, preventing direct exposure. Simultaneously, the starting component activates, releasing gas to fill the fixing airbag, which in turn fills the containment cavity. This makes it difficult for external pressure to alter the position of the connecting ring, ensuring stable cable protection and enhancing the cable protection effect.

[0007] Optionally, a fixing rope is slidably connected inside the receiving cavity, a fixing block is fixedly connected to one end of the fixing rope, the end of the fixing rope away from the fixing block is fixedly connected to the first tube body, and the fixing block is slidably disposed inside the receiving cavity.

[0008] By adopting the above technical solution, the movement of the fixing rope is restricted by the friction between the fixing block and the inner wall of the cavity through the sliding of the fixing block. This allows the fixing rope to remain taut, thereby supporting the connecting ring and reducing the rotation of the connecting ring due to external pressure. As a result, the connecting ring will not rotate under pressure and can withstand greater pressure.

[0009] Optionally, the first tube body is provided with a fixing rod, and a fixing rope with one end of the fixing block passes around the fixing rod. The fixing airbag is provided with a first push plate, which is located on the side of the fixing block close to the first tube body. When the fixing airbag is filled with gas, the first push plate drives the fixing block to move away from the first tube body, and the fixing rope is in a taut state.

[0010] By adopting the above technical solution, when the fixed airbag is filled with gas, since the first push plate is located on the side of the fixed block close to the first tube, the first push plate can drive the fixed block to move away from the first tube. In addition, the fixed rope with one end of the fixed block passes around the fixed rod, so that the fixed rope can be kept taut. This allows the taut fixed rope to maintain its supporting effect on the connecting ring, further reducing the possibility of the connecting ring rotating again due to subsequent landslides or heavy machinery crushing, and ensuring that the connected ring remains stable after rotation.

[0011] Optionally, the receiving cavity is provided with an extension airbag, the extension airbag is provided with a connecting tube, the connecting tube is connected to the fixed airbag, and the extension airbag is used to release excess gas.

[0012] By adopting the above technical solution, the rotation angle of the connecting ring is different in the first and second tubes with different swing amplitudes, and the position of the fixing rope in the connecting ring is also different. When the swing amplitude of some connecting rings is small, the fixing airbag may be pushed to a certain position and then it will be difficult to continue to drive the fixing block to move. At this time, the gas in the fixing airbag can be released into the extension airbag, so that the extension airbag can continue to be filled, thereby avoiding the adverse effects caused by too much gas in the fixing airbag.

[0013] Optionally, the extended airbag is provided with a second push plate, which is located on the side of the first push plate away from the first tube.

[0014] By adopting the above technical solution, with the second push plate located on the side of the first push plate away from the first tube, when the fixed airbag pushes the first push plate, the first push plate can drive the second push plate to continue moving, so that the extended airbag can be partially deployed, so that gas can smoothly enter the extended airbag.

[0015] Optionally, one end of the extended airbag is fixedly connected to the first tube, and the other end of the extended airbag can be filled towards the second tube.

[0016] By adopting the above technical solution, one end of the extended airbag is fixedly connected to the first tube, allowing the other end of the extended airbag to fill towards the second tube, so that the extended airbag can fill the receiving cavity inside the connecting ring, thereby allowing the extended airbag and the fixed airbag to stably support multiple connecting rings.

[0017] Optionally, the actuating component includes a first reaction block, a second reaction block, and a third reaction block. An elastic plate is provided inside the fixed airbag, and a placement hole is provided on the elastic plate. The first, second, and third reaction blocks are all disposed within the placement hole. A puncture block is provided within the placement hole, and the puncture block is used to puncture the first, second, and third reaction blocks. When the second tube body swings, the puncture block punctures the first, second, and third reaction blocks, causing them to react rapidly and release gas.

[0018] By adopting the above technical solution, when the first tube and the second tube swing relative to each other, the elastic plate deforms, allowing the piercing block to pierce the first reaction block, the second reaction block and the third reaction block, so that the first reaction block, the second reaction block and the third reaction block can react quickly and release gas in the placement hole, so that the gas can quickly fill the fixing airbag and allow the fixing airbag to abut against the connecting ring.

[0019] Optionally, the first reaction block and the second reaction block are distributed along the length of the connecting ring, and two piercing blocks are provided, which are respectively disposed on the hole wall near the cable and the hole wall away from the cable.

[0020] By adopting the above technical solution, two piercing blocks are respectively set on the hole wall near the cable and the hole wall away from the cable. No matter which direction the connecting ring rotates, the connecting ring can squeeze the elastic plate to move the piercing blocks, so that the piercing blocks can pierce the first reaction block and the second reaction block, so that the first reaction block and the second reaction block can react stably.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. When landslides or heavy machinery compaction occur, the first and second pipe bodies may experience relative displacement, or even misalignment. Because the connecting ring is rotatably connected to the first pipe body, and another connecting ring is rotatably connected to the second pipe body, the connecting ring can rotate to accommodate the rotation within the first and second pipe bodies. This allows the connecting ring to protect the cable, preventing direct exposure. Simultaneously, the starting mechanism activates, releasing gas to fill the fixing airbag, which in turn fills the containment cavity. This makes it difficult for external pressure to alter the position of the connecting ring, ensuring stable cable protection and enhancing its effectiveness.

[0022] 2. When the fixed airbag is filled with gas, since the first push plate is located on the side of the fixed block close to the first tube, the first push plate can drive the fixed block to move away from the first tube. In addition, the fixed rope with one end of the fixed block passes around the fixed rod, so that the fixed rope can remain taut. This allows the taut fixed rope to maintain its supporting effect on the connecting ring, further reducing the possibility of the connecting ring rotating again due to subsequent landslides or heavy machinery crushing, so that the rotating connecting ring can remain stable. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of an embodiment of this application; Figure 2 It is along Figure 1 A partial sectional view of line AA in the middle; Figure 3 yes Figure 2 Enlarged schematic diagram of part B in the middle; Figure 4 This is an exploded view of the initiator highlighted in the embodiments of this application.

[0024] Reference numerals: 1. First tube body; 2. Second tube body; 3. Connecting structure; 31. Connecting ring; 32. Receiving cavity; 33. Fixing rope; 331. Fixing rod; 332. Fixing block; 4. Elastic plate; 41. Placement hole; 411. Puncture block; 42. Activating component; 421. First reaction block; 422. Second reaction block; 423. Third reaction block; 43. Fixing airbag; 431. First push plate; 44. Extension airbag; 441. Second push plate. Detailed Implementation

[0025] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0026] This embodiment discloses a power cable protection pipe. (Refer to...) Figure 1 and Figure 2A power cable protection pipe includes a first pipe body 1, a second pipe body 2, and a connecting structure 3, wherein the connecting structure 3 is located between the first pipe body 1 and the second pipe body 2.

[0027] Reference Figure 3 The connecting structure 3 includes multiple connecting rings 31, which extend along the length of the first tube 1 and are rotatably connected relative to each other. The first connecting ring 31 is rotatably connected to the end face of the first tube 1, and the last connecting ring 31 is rotatably connected to the end face of the second tube 2. When the first tube 1 and the second tube 2 swing, the multiple connecting rings 31 rotate relative to each other, allowing the connecting rings 31 to protect the internal cables.

[0028] Reference Figure 3 and Figure 4 A receiving cavity 32 is formed on the end face of the connecting ring 31, and the receiving cavities 32 of the multiple connecting rings 31 are interconnected. An elastic plate 4 is fixedly connected to the inner wall of the receiving cavity 32, and the elastic plate 4 extends along the length direction of the first tube 1. A placement hole 41 is formed on the surface of the elastic plate 4 near the first tube 1, and the placement hole 41 extends along the length direction of the elastic plate 4.

[0029] Reference Figure 4 A placement groove is provided on the wall of the placement hole 41, and a starting component 42 is provided in the placement groove. The starting component 42 includes a first reaction block 421, a second reaction block 422, and a third reaction block 423. When the substances in the first reaction block 421, the second reaction block 422, and the third reaction block 423 come into contact with each other, they can react quickly and release gas. In this embodiment, the substance in the first reaction block 421 is potassium hydrogen tartrate, the substance in the second reaction block 422 is sodium bicarbonate, and the substance in the third reaction block 423 is water.

[0030] Reference Figure 4 The third reaction block 423 is arranged in a ring shape and is fitted onto the first reaction block 421 and the second reaction block 422. Four piercing blocks 411 are fixedly connected to the wall of the placement hole 41. Two piercing blocks 411 are fixedly connected to the wall of the placement hole 41 near the cable, and the other two piercing blocks 411 are fixedly connected to the wall of the placement hole 41 away from the cable. The piercing blocks 411 can pierce the first reaction block 421, the second reaction block 422, and the third reaction block 423, enabling rapid reactions of the first reaction block 421, the second reaction block 422, and the third reaction block 423.

[0031] Reference Figure 3 and Figure 4When the connecting ring 31 rotates, it causes the elastic plate 4 to deform, so that the elastic plate 4 first punctures the third reaction block 423 through the puncturing block 411 to release water, and then punctures the first reaction block 421 and the second reaction block 422, so as to realize the rapid reaction of potassium tartrate and sodium bicarbonate in water and release a large amount of gas.

[0032] Reference Figure 3 A fixed air bladder 43 and an extended air bladder 44 are fixedly connected to the surface of the elastic plate 4, both extending to both ends of the elastic plate 4. The fixed air bladder 43 and the extended air bladder 44 are interconnected via a connecting pipe, and the fixed air bladder 43 is connected to the placement hole 41. The width of the extended air bladder 44 is smaller than the width of the fixed air bladder 43, meaning that most of the large amount of gas released during the reaction enters the fixed air bladder 43, and a small portion enters the extended air bladder 44. When gas is released from the placement hole 41, both the fixed air bladder 43 and the extended air bladder 44 can be filled.

[0033] Reference Figure 3 and Figure 4 A fixing rope 33 is fixedly connected to the end face of the first tube 1 facing the second tube 2. Two fixing rods 331 are fixedly connected to the end face of the first tube 1 and the second tube 2. The fixing rope 33 passes over the two fixing rods 331 on one side of the first tube 1 and the two fixing rods 331 on the other side of the second tube 2. The fixing rope 33 abuts against the inner wall of the receiving cavity 32, which is close to the inner wall of the cable, and the receiving cavity 32 is far away from the inner wall of the cable, and the fixing rope 33 is in a taut state.

[0034] Reference Figure 3 and Figure 4 One end of the fixed airbag 43 is fixedly connected to the end face of the first tube 1, and a first push plate 431 is fixedly connected to the other end of the fixed airbag 43. The first push plate 431 is located on the side of the fixed block 332 close to the first tube 1. One end of the extension airbag 44 is fixedly connected to the end face of the first tube 1, and a second push plate 441 is fixedly connected to the surface of the extension airbag 44 away from the first tube 1. The second push plate 441 is located on the side of the first push plate 431 away from the first tube 1.

[0035] Reference Figure 3 and Figure 4When the gas is released from the reaction inside the elastic plate 4, the gas fills the fixed airbag 43. At this time, the first push plate 431 drives the fixed block 332 to move, keeping the fixed rope 33 taut. This allows the fixed rope 33 to stably restrict the rotation of the connecting ring 31. Simultaneously, the first push plate 431 drives the second push plate 441 to unfold, allowing the extension airbag 44 to unfold quickly. The fixed airbag 43 and the extension airbag 44 can abut against the inner wall of the receiving cavity 32 until the fixed airbag 43 can no longer drive the fixed block 332 to move. At this time, most of the gas enters the extension airbag 44, allowing the extension airbag 44 to unfold quickly, so that the extension airbag 44 can quickly fill the receiving cavity 32 to further restrict the rotation of the connecting ring 31.

[0036] The implementation principle of a power cable protection pipe according to an embodiment of this application is as follows: When the connecting ring 31 rotates, the inner wall of the receiving cavity 32 squeezes the elastic plate 4, causing the piercing block 411 to pierce the first reaction block 421, the second reaction block 422, and the third reaction block 423, so that the gas is released quickly. The gas drives the fixed airbag 43 to fill. The first push plate 431 straightens the connecting rope through the fixed block 332. After that, the gas can no longer fill the fixed airbag 43. Most of the gas fills the extension airbag 44, allowing the extension airbag 44 to expand quickly. This allows the fixed airbag 43 and the extension airbag 44 to quickly fill the receiving cavity 32, thereby supporting the connecting ring 31 and reducing the direct application of external pressure to the cable.

[0037] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "a" or "an," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising," "including," and similar terms mean that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0038] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of this application should be included within the protection scope of this application.

Claims

1. A power cable protection pipe, characterized in that: The device includes a first tube (1), a second tube (2), and a connecting structure (3). The connecting structure (3) includes multiple connecting rings (31), which are rotatably connected to each other. One connecting ring (31) is rotatably connected to the first tube (1), and another connecting ring (31) is rotatably connected to the second tube (2). The connecting ring (31) has a receiving cavity (32), which is provided with a fixing airbag (43). The receiving cavity (32) is provided with an actuating element (42), which is used to release gas to fill the fixing airbag (43).

2. The power cable protection pipe according to claim 1, characterized in that: A fixing rope (33) is slidably connected inside the receiving cavity (32). A fixing block (332) is fixedly connected to one end of the fixing rope (33). The end of the fixing rope (33) away from the fixing block (332) is fixedly connected to the first tube (1). The fixing block (332) is slidably disposed inside the receiving cavity (32).

3. The power cable protection pipe according to claim 2, characterized in that: The first tube (1) is provided with a fixing rod (331), and a fixing rope (33) with one end of the fixing block (332) passes around the fixing rod (331). The fixing airbag (43) is provided with a first push plate (431), which is located on the side of the fixing block (332) close to the first tube (1). When the fixing airbag (43) is filled with gas, the first push plate (431) drives the fixing block (332) to move away from the first tube (1), and the fixing rope (33) is in a taut state.

4. The power cable protection pipe according to claim 3, characterized in that: The cavity (32) is provided with an extension airbag (44), the extension airbag (44) is provided with a connecting tube, the connecting tube is connected to a fixed airbag (43), and the extension airbag (44) is used to release excess gas.

5. A power cable protection pipe according to claim 4, characterized in that: The extended airbag (44) is provided with a second push plate (441), which is located on the side of the first push plate (431) away from the first tube (1).

6. A power cable protection pipe according to claim 4, characterized in that: One end of the extended airbag (44) is fixedly connected to the first tube (1), and the other end of the extended airbag (44) can be filled in the direction of the second tube (2).

7. A power cable protection pipe according to claim 1, characterized in that: The starting component (42) includes a first reaction block (421), a second reaction block (422), and a third reaction block (423). The fixed airbag (43) is provided with an elastic plate (4). The elastic plate (4) has a placement hole (41). The first reaction block (421), the second reaction block (422), and the third reaction block (423) are all disposed in the placement hole (41). The placement hole (41) is provided with a piercing block (411). The piercing block (411) is used to pierce the first reaction block (421), the second reaction block (422), and the third reaction block (423). When the second tube (2) swings, the piercing block (411) pierces the first reaction block (421), the second reaction block (422), and the third reaction block (423). The first reaction block (421), the second reaction block (422), and the third reaction block (423) react quickly to release gas.

8. A power cable protection pipe according to claim 7, characterized in that: The first reaction block (421) and the second reaction block (422) are distributed along the length of the connecting ring (31). There are two piercing blocks (411), which are respectively located on the wall of the placement hole (41) near the cable and on the wall of the placement hole (41) away from the cable.

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