A cable protection device

Abstract

The present disclosure relates to the technical field of cable protection, and particularly relates to a cable protection device, which comprises a first protection pipe, a second protection pipe, a first threaded joint and a second threaded joint. The first protection pipe is externally provided with a first external thread, the second protection pipe is inserted into the first protection pipe and can move axially relative to the first protection pipe, and the second protection pipe is externally provided with a second external thread; the first threaded joint is sleeved outside the first protection pipe and is screwed with the first external thread; the first threaded joint is sleeved outside the second protection pipe and is screwed with the second external thread; the outer periphery of the second threaded joint is provided with a third external thread which is the same as the first external thread, and the outer diameter size of the second threaded joint is the same as the outer diameter size of the first protection pipe; the first threaded joint can be screwed with the first external thread and the third external thread to lock and connect the first protection pipe and the second protection pipe. The cable protection device can be adapted to cables with different lengths, has good protection performance and strong adaptability.

Description

Technical Field

[0001] This disclosure relates to the field of cable protection technology, and in particular to a cable protection device. Background Technology

[0002] Electrical wires and cables are products used to transmit electrical energy, information, and convert electromagnetic energy. During power construction, a large number of cables need to be laid. Some of these cables will be in harsh environments, overlapping or intersecting with high-temperature pipelines. Therefore, it is necessary to add cable conduits to protect the cables and isolate them from the harsh external environment as much as possible to extend their service life. However, existing cable conduits cannot be adapted to the actual length of the cables, resulting in some cables still being exposed to the external environment and failing to achieve adequate protection. Utility Model Content

[0003] To address the aforementioned technical problems, this disclosure provides a cable protection device.

[0004] This disclosure provides a cable protection device, including: The first protective tube is axially penetrating and has a first external thread on its exterior. The second protective tube is axially penetrating and is inserted into the first protective tube. It can move axially relative to the first protective tube. The second protective tube is provided with a second external thread. The first threaded connector is fitted onto the outside of the first protective tube and screwed into the first external thread; The second threaded connector is fitted onto the outside of the second protective tube and screwed into the second external thread; the outer circumference of the second threaded connector is provided with a third external thread that is the same as the first external thread, and the outer diameter of the second threaded connector is the same as the outer diameter of the first protective tube. The first threaded connector can be screwed into the first external thread and the third external thread to lock and connect the first protective tube and the second protective tube.

[0005] Optionally, a sealing ring is provided circumferentially at one end of the second protective tube that extends into the first protective tube, and the sealing ring is sandwiched between the first protective tube and the second protective tube.

[0006] Optionally, the second threaded connector has a limiting block at one end opposite to the first threaded connector, which can abut against the end face of the first threaded connector.

[0007] Optionally, the end of the first protective tube opposite to the second protective tube has a first tapered tube head for limiting and fixing the cable.

[0008] Optionally, a first sealing ring is provided inside the first tapered tube head.

[0009] Optionally, the end of the second protective tube opposite to the first protective tube has a second tapered tube head for limiting and fixing the cable.

[0010] Optionally, a second sealing ring is provided inside the second tapered tube head.

[0011] Optionally, the inner walls of the first protective tube and the second protective tube are provided with a fireproof layer.

[0012] Optionally, it also includes a support assembly, which is detachably connected to the first protective tube and the second protective tube to fix the first protective tube and the second protective tube in a designated position.

[0013] Optionally, the support assembly includes a first connecting ring frame and a second connecting ring frame, wherein the first connecting ring frame is fitted outside the first protective tube, and the second connecting ring frame is fitted outside the second protective tube.

[0014] The technical solution provided in this disclosure has the following advantages compared with the prior art: The cable protection device has a simple overall structure and is easy to use. It can adjust the length of the second and first protective tubes by pulling and adjusting the second and first protective tubes to match the cable length. The first and second protective tubes are locked together by the cooperation of the first and second threaded joints, so that the device can adapt to cables of different lengths and has good protection performance. It solves the problem that traditional cable tubes cannot adapt to cables of different lengths due to their fixed length, thus improving adaptability. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0016] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the cable protection device described in an embodiment of this disclosure; Figure 2 This is a partial structural schematic diagram of the cable protection device described in an embodiment of this disclosure; Figure 3 This is a schematic diagram of the structure of the first tapered tube head according to an embodiment of this disclosure; Figure 4 This is a cross-sectional schematic diagram of the first protective tube according to an embodiment of this disclosure.

[0018] in: 1. First protective tube; 11. First tapered tube head; 111. First sealing ring; 2. Second protective tube; 21. Sealing ring; 22. Second tapered tube head; 221. Second sealing ring; 3. First threaded connector; 4. Second threaded connector; 41. Limiting block; 5. Support components; 51. First connecting ring frame; 6. Fireproof layer. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0020] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0021] The cable protection device in this embodiment is as follows: Figure 1 and Figure 2 As shown, it includes a first protective tube 1, a second protective tube 2, a first threaded connector 3, and a second threaded connector 4. The first and second protective tubes 1 and 2 are axially hollow, and the cable passes through them. The second protective tube 2 is inserted into the first protective tube 1 and can move axially relative to it. It can be adjusted to a suitable position by pulling the second protective tube 2 according to the actual length of the cable, so that the axial length of the first and second protective tubes 1 and 2 matches the actual length of the cable. The first protective tube 1 has a first external thread, and the second protective tube 2 has a second external thread. The first threaded connector 3 is fitted onto the first protective tube 1 and screwed into the first external thread. The second threaded connector 4 is fitted onto the second protective tube 2 and screwed into the second external thread. The outer circumference of the second threaded connector 4 is provided with a third external thread that is identical to the first external thread. That is, the third external thread has the same parameters as the first external thread, such as the direction of rotation, tooth profile, and pitch. The outer diameter of the second threaded connector 4 is the same as the outer diameter of the first protective tube 1, so that after the end face of the second threaded connector 4 abuts against the first protective tube 1, the third external thread on the second threaded connector 4 and the first external thread on the first protective tube 1 can form a continuous thread segment, so that the first threaded connector 3 can be screwed with the first external thread and the third external thread at the same time to lock and connect the first protective tube 1 and the second protective tube 2.

[0022] In use, the cable is passed through the first protective tube 1 and the second protective tube 2. According to the actual length of the cable, the second protective tube 2 is pulled axially to move it to a suitable position so that the length of the first protective tube 1 and the second protective tube 2 matches the actual length of the cable. Then, the second threaded connector 4 is rotated. When the second threaded connector 4 abuts against the end face of the first protective tube 1, since the third external thread on the second threaded connector 4 and the first external thread on the outside of the first protective tube 1 have the same structural parameters, the third external thread on the second threaded connector 4 can be aligned with the first external thread on the outside of the first protective tube 1 by rotating the second threaded connector 4 (or by rotating the second protective tube 2, which is simply inserted into the first protective tube 1 and can also rotate relative to the first protective tube 1). This allows the third external thread on the second threaded connector 4 to align with the first external thread on the outside of the first protective tube 1, so that the third external thread and the first external thread can form a continuous thread segment. At this time, the first threaded connector 3 is rotated so that the first threaded connector 3 is screwed into the first external thread and the third external thread on the second threaded connector 4 at the same time, so as to achieve a fixed connection between the first protective tube 1 and the second protective tube 2.

[0023] The cable protection device has a simple overall structure and is easy to use. It can adjust the length of the second protection tube 2 and the first protection tube 1 by pulling and adjusting the second protection tube 2 to match the cable length. The first threaded connector 3 and the second threaded connector 4 are used to lock the first protection tube 1 and the second protection tube 2 together, so that the device can adapt to cables of different lengths. This solves the problem that traditional cable protection tubes cannot adapt to cables of different lengths due to their fixed length, and improves adaptability.

[0024] Furthermore, such as Figure 2 As shown, a sealing ring 21 is circumferentially provided at one end of the second protective tube 2 that extends into the first protective tube 1, and the sealing ring 21 is sandwiched between the first protective tube 1 and the second protective tube 2. The sealing ring 21 can be a metal sealing ring, and the outer diameter of the sealing ring 21 is adapted to the inner radial direction of the first protective tube 1 to improve the circumferential sealing performance of the first protective tube 1 and the second protective tube 2.

[0025] Furthermore, such as Figure 1 and Figure 2 As shown, the end of the second threaded connector 4 facing away from the first threaded connector 3 is provided with a limiting block 41 that can abut against the end face of the first threaded connector 3. In this embodiment, multiple limiting blocks 41 are provided, and the multiple limiting blocks 41 are evenly spaced circumferentially on the end face of the first threaded connector 3. When the first threaded connector 3 is rotated into place, the first threaded connector 3 can abut against the limiting block 41 to prevent the first threaded connector 3 from rotating excessively and detaching from the surface of the second threaded connector 4.

[0026] Furthermore, such as Figures 1-3As shown, in this embodiment, the end of the first protective tube 1 facing away from the second protective tube 2 has a first tapered tube head 11 for limiting and fixing the cable. The cable passes through the first tapered tube head 11, and the wall of the through hole at the converging end of the first tapered tube head 11 abuts against the peripheral wall of the cable. Furthermore, a first sealing ring 111 is provided inside the first tapered tube head 11, and the first sealing ring 111 is arranged around the wall of the through hole at the converging end of the first tapered tube head 11 to improve the sealing performance.

[0027] Similarly, such as Figure 1 As shown, the second protective tube 2, located away from the first protective tube 1, has a second tapered tube head 22 for limiting and fixing the cable. A second sealing ring 221 is also provided inside the second tapered tube head 22 to improve sealing.

[0028] Furthermore, such as Figure 4 As shown, the inner walls of the first protective pipe 1 and the second protective pipe 2 are provided with a fireproof layer 6 to improve the fire resistance of the first protective pipe 1 and the second protective pipe 2, thereby improving the protection of the cables inside the pipes and enhancing the fire resistance of the cables. Specifically, the fireproof layer 6 can be an intumescent graphene fireproof coating, which expands in volume when exposed to fire and forms a "worm-like" char layer, significantly reducing the heat release rate and improving fireproof and heat insulation performance.

[0029] Optionally, it also includes a support component 5, which is detachably connected to the first protective tube 1 and the second protective tube 2 to fix the first protective tube 1 and the second protective tube 2 in a designated position. Specifically, as shown... Figure 1 As shown, the support component 5 in this embodiment includes a first connecting ring frame 51 and a second connecting ring frame 52. The first connecting ring frame 51 is fitted outside the first protective tube 1, and the second connecting ring frame 52 is fitted outside the second protective tube 2. The first connecting ring frame 51 and the second connecting ring frame 52 have the same structure, except for their radial dimensions. The inner diameter of the first connecting ring frame 51 is adapted to the outer diameter of the first protective tube 1, and the inner diameter of the second connecting ring frame 52 is adapted to the outer diameter of the second protective tube 2. The top flat plate structure of the first connecting ring frame 51 and the second connecting ring frame 52 is provided with through holes, which can be further fixed to the wall or other locations by bolts or other fasteners.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cable protection device, characterized in that, include: The first protective tube (1) is axially penetrating, and the first protective tube (1) is provided with a first external thread; The second protective tube (2) is axially through, and is inserted into the first protective tube (1) and can move axially relative to the first protective tube (1). The second protective tube (2) is provided with a second external thread. The first threaded connector (3) is fitted onto the outside of the first protective tube (1) and screwed into the first external thread; The second threaded connector (4) is fitted onto the outside of the second protective tube (2) and screwed into the second external thread; the outer periphery of the second threaded connector (4) is provided with a third external thread that is the same as the first external thread, and the outer diameter of the second threaded connector (4) is the same as the outer diameter of the first protective tube (1); The first threaded connector (3) can be screwed into the first external thread and the third external thread to lock and connect the first protective tube (1) and the second protective tube (2).

2. The cable protection device according to claim 1, characterized in that, The second protective tube (2) has a sealing ring (21) circumferentially provided at one end of the first protective tube (1), and the sealing ring (21) is sandwiched between the first protective tube (1) and the second protective tube (2).

3. The cable protection device according to claim 1, characterized in that, The second threaded connector (4) is located away from the end of the first threaded connector (3) and is provided with a limiting block (41) that can abut against the end face of the first threaded connector (3).

4. The cable protection device according to claim 1, characterized in that, The first protective tube (1) has a first tapered tube head (11) at one end away from the second protective tube (2) for limiting and fixing the cable.

5. The cable protection device according to claim 4, characterized in that, The first conical tube head (11) is provided with a first sealing ring (111).

6. The cable protection device according to claim 1, characterized in that, The second protective tube (2) has a second tapered tube head (22) at one end opposite to the first protective tube (1) for limiting and fixing the cable.

7. The cable protection device according to claim 6, characterized in that, The second conical tube head (22) is provided with a second sealing ring (221).

8. The cable protection device according to claim 1, characterized in that, The inner walls of the first protective tube (1) and the second protective tube (2) are provided with a fireproof layer (6).

9. The cable protection device according to claim 1, characterized in that, It also includes a support component (5), which is detachably connected to the first protective tube (1) and the second protective tube (2) to fix the first protective tube (1) and the second protective tube (2) in a designated position.

10. The cable protection device according to claim 9, characterized in that, The support assembly (5) includes a first connecting ring frame (51) and a second connecting ring frame (52). The first connecting ring frame (51) is fitted outside the first protective tube (1), and the second connecting ring frame (52) is fitted outside the second protective tube (2).

Images