A cable protection joint

Abstract

The application relates to a cable protection joint and belongs to the technical field of electrical cable protection. The cable protection joint comprises a metal hose, one end of which is formed with a cutting port; a protection sleeve, which has a cable passing channel for passing a cable, the protection sleeve being arranged in the metal hose, and one end of the protection sleeve extending from the cutting port to form an isolation part; and a locking assembly, which is sleeved on the isolation part and the metal hose and is used for locking the metal hose and the protection sleeve on the cable, so that the isolation part separates the cable from the cutting port. The application effectively protects the cable through the double action of the metal hose and the protection sleeve, and can avoid damage of the cutting port of the metal hose to the cable.

Description

Technical Field

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

[0002] With the continuous development of intelligent equipment and the increasing demand for electricity, cables are widely used as energy transmission carriers. In the electrical design of military and aerospace systems, the laying and protection of cables are particularly important. They need to meet the protection requirements of wear resistance, high temperature resistance, corrosion resistance, and lightweight materials. At the same time, the protection measures should be simple, able to bend with the cable, and the fixing method should not take up space. Therefore, the use of stainless steel flexible metal hoses is common in the electrical design of launch systems.

[0003] However, due to the characteristics of the metal flexible hose manufacturing process, the metal flexible hose has relatively sharp cut edges at both ends. During cable installation, cable transportation, vibration, and bending, the sharp cut edges can scratch the outer sheath of the cable. Over time, this may damage the cable's shielding layer and internal core, causing immeasurable impact on energy transmission and signal transmission. Summary of the Invention

[0004] This application provides a cable protection connector that can solve the problem in related technologies where the cut end of a metal flexible conduit can scratch the outer sheath of the cable, resulting in damage to the cable's shielding layer and internal core, which in turn causes immeasurable impact on energy transmission and signal transmission.

[0005] This application provides a cable protection connector, comprising: a metal flexible tube with a cut-out at one end; a protective sleeve having a cable passage for a cable to pass through, the protective sleeve being disposed inside the metal flexible tube, and one end of the protective sleeve extending out from the cut-out to form an isolation portion; and a locking assembly sleeved on the isolation portion and the metal flexible tube, for locking the metal flexible tube and the protective sleeve onto the cable, thereby isolating the cable from the cut-out at the isolation portion.

[0006] In some embodiments, the locking assembly includes: a fixing sleeve fitted onto the metal flexible tube, with one end of the fixing sleeve extending toward and beyond the cut end of the metal flexible tube; and a clamping member connected between the isolation portion and the fixing sleeve, the clamping member being used to clamp the protective sleeve and the fixing sleeve onto the cable.

[0007] In some embodiments, the protective sleeve includes: a protective straight tube fitted inside the metal flexible tube, and the isolation portion formed at the end of the protective straight tube; a first connecting lug connected to the isolation portion at the end of the protective straight tube, the first connecting lug having an opening for a cable to pass through.

[0008] In some embodiments, the fixing sleeve includes: a fixing straight tube fitted onto the metal flexible tube, with one end of the fixing straight tube extending beyond the cut end of the metal flexible tube; and a second connecting ear plate connected to the end of the fixing straight tube extending beyond the cut end of the metal flexible tube, the second connecting ear plate having an opening for a cable to pass through.

[0009] In some embodiments, the first connecting ear plate abuts against the second connecting ear plate, and the clamping member is connected to the first connecting ear plate and the second connecting ear plate, the clamping member being used to clamp the first connecting ear plate and the second connecting ear plate.

[0010] In some embodiments, the clamping component includes: two clamping plates, each clamping plate having an arcuate groove adapted to the outer wall of the cable, and a clamping groove located at the arcuate groove on each clamping plate; the two clamping plates are arranged to surround the cable between the two arcuate grooves, and the first connecting ear plate and the second connecting ear plate are engaged in the clamping groove; and a locking bolt passing between the first connecting ear plate and the second connecting ear plate.

[0011] In some embodiments, the clamping plate is provided with a clearance groove for accommodating a locking bolt.

[0012] In some embodiments, the clamping plate has a semi-circular cross-section.

[0013] In some embodiments, the first connecting ear plate is connected to the protective straight tube via an arc transition.

[0014] In some embodiments, the protective straight tube is provided with a threaded section, and the protective straight tube is threadedly engaged with the metal hose through the threaded section.

[0015] The beneficial effects of the technical solutions provided in this application include:

[0016] This application provides a cable protection connector. In use, a metal flexible conduit of suitable diameter and length is first passed through the cable. Then, a protective sleeve is passed through the metal flexible conduit and placed at both ends, with one end of the protective sleeve extending beyond the cut end of the metal flexible conduit. This blocks the sharp cut end of the metal flexible conduit, protecting the cable and preventing damage to the cable from the cut end. Finally, a locking assembly is used to secure the protective sleeve and the metal flexible conduit to the cable, thus achieving the connection between the metal flexible conduit and the protective sleeve and effectively providing protection for energy cable transmission and signal transmission. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of this application;

[0019] Figure 2 A cross-sectional schematic diagram provided for an embodiment of this application;

[0020] Figure 3 An exploded view diagram provided for an embodiment of this application;

[0021] In the diagram: 1. Metal flexible hose; 2. Cable; 3. Protective sleeve; 30. Protective straight pipe; 31. First connecting ear plate; 4. Fixing sleeve; 40. Fixing straight pipe; 41. Second connecting ear plate; 5. Clamping component; 50. Clamping plate; 500. Arc groove; 501. Clamping groove; 51. Locking bolt; 6. Clearance groove; 7. Threaded section. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0023] This application provides a cable protection connector that solves the problem in related technologies where the cut end of a metal flexible conduit scratches the outer sheath of the cable, resulting in damage to the cable's shielding layer and internal core, which in turn causes immeasurable impact on energy transmission and signal transmission.

[0024] The manufacturing process of flexible metal conduits results in sharp cut edges at both ends. During cable installation, transport, vibration, and bending, these sharp edges can scratch the cable's outer sheath. Traditional solutions include two methods: First, wrapping a certain thickness of electrical insulating tape or self-adhesive tape around the cable at the cut edge to separate it from the cable. However, excessive thickness can cause interference when the cable enters and exits the conduit, while insufficient thickness provides inadequate protection. Second, purchasing a flexible metal conduit connector for installation. However, since the installation end uses an electrical connector tail clip, custom-made tail clips must be ordered to ensure compatibility with both the conduit and the shielding layer, leading to high costs. Neither method allows for secure and stable movement of the flexible metal conduit on the cable. Therefore, the cable protection connector provided in this application offers a superior solution compared to these two traditional methods. It overcomes the drawback of the cut edge scratching the cable's outer sheath while also possessing unique advantages.

[0025] See Figures 1 to 3 As shown, this application embodiment provides a cable protection connector, including a metal flexible tube 1, a protective sleeve 3, and a locking assembly. One end of the metal flexible tube 1 has a cut-out opening, and the protective sleeve 3 has a cable passage for a cable 2 to pass through. The protective sleeve 3 is placed inside the metal flexible tube 1, with one end extending from the cut-out opening to form an isolation section. The locking assembly is fitted onto the isolation section and the metal flexible tube 1, and is used to lock the metal flexible tube 1 and the protective sleeve 3 onto the cable 2, so that the isolation section separates the cable 2 from the cut-out opening.

[0026] In this application, the protective sleeve 3 is preferably made of, but not limited to, flexible materials. In use, a metal flexible tube 1 of suitable diameter and length is passed through the cable 2, and then the protective sleeve 3 is passed through the metal flexible tube 1 and placed at both ends, so that one end of the protective sleeve 3 extends beyond the cut end of the metal flexible tube 1. At this point, the insulating portion of the protective sleeve 3 completely isolates the cable 2 from the cut end, preventing damage to the cable 2 from the cut end. A locking assembly secures the metal flexible tube 1 and the protective sleeve 3 together to the cable 2, forming a rigid connection. This application, through the metal flexible tube 1 and the protective sleeve 3, can protect the integrity of the cable 2's shielding layer and internal core, reducing signal attenuation, energy loss, or short-circuit risks caused by mechanical damage.

[0027] The locking assembly includes a fixing sleeve 4 and a clamping component 5. The fixing sleeve 4 is fitted onto the metal flexible hose 1, with one end extending towards and beyond the cut end of the metal flexible hose 1. By fitting the fixing sleeve 4 onto the metal flexible hose 1, the fixing sleeve 4 and the protective sleeve 3 clamp the metal flexible hose 1 in the middle. The fixing sleeve 4 can serve as an installation reference for the clamping component 5, ensuring that the position of the clamping component 5 is aligned with the cut end of the metal flexible hose 1. Therefore, by connecting the clamping component 5 between the isolation part and the fixing sleeve 4, the clamping component 5 can clamp the protective sleeve 3 and the fixing sleeve 4 onto the cable 2 at the cut end of the metal flexible hose 1.

[0028] In this application, the protective sleeve 3 includes a protective straight tube 30 and a first connecting lug 31. The protective straight tube 30 is fitted inside the metal flexible hose 1, and an isolation portion is formed at the end of the protective straight tube 30. To ensure that the protective straight tube 30 can still be reliably connected inside the metal flexible hose 1, a threaded section 7 is provided on the protective straight tube 30, which is threadedly engaged with the metal flexible hose 1 through the threaded section 7. The threaded engagement method facilitates the connection of the protective straight tube 30, and the thread is self-locking and reliable. The first connecting lug 31 is connected to the isolation portion at the end of the protective straight tube 30. The first connecting lug 31 has an opening for the cable 2 to pass through, and the first connecting lug 31 is connected to the protective straight tube 30 with a rounded transition. This allows the cable 2 to pass through the opening of the first connecting lug 31 after the protective sleeve is connected inside the metal flexible hose 1. The rounded transition design avoids damage to the cable 2, further improving the protection of the cable 2.

[0029] Furthermore, the fixed sleeve 4 includes a fixed straight tube 40 and a second connecting ear plate 41. During installation, the fixed straight tube 40 is fitted onto the metal flexible tube 1, with one end of the fixed straight tube 40 extending beyond the cut end of the metal flexible tube 1. The second connecting ear plate 41 is directly connected to the end of the fixed straight tube 40 that extends beyond the cut end of the metal flexible tube 1, and the second connecting ear plate 41 has an opening for the cable 2 to pass through. Therefore, when the protective straight tube 30 and the fixed straight tube 40 are connected, the metal flexible tube 1 is stacked between the protective straight tube 30 and the fixed straight tube 40. At this time, the openings of the first connecting ear plate 31 and the second connecting ear plate 41 also allow the cable 2 to pass through smoothly, and the first connecting ear plate 31 abuts against the second connecting ear plate 41. A stable protective structure is formed between the protective straight tube 30, the fixed straight tube 40, and the metal flexible tube 1 to protect the cable 2. It is then connected to the first connecting ear plate 31 and the second connecting ear plate 41 by a clamping component 5, which is used to clamp the first connecting ear plate 31 and the second connecting ear plate 41. The clamped first connecting ear plate 31 and the second connecting ear plate 41 are effectively locked to one end of the cut end of the metal hose 1.

[0030] Specifically, the clamping component 5 includes clamping plates 50 and locking bolts 51. Two clamping plates 50 are provided, each with a semi-arc cross-section. Each clamping plate 50 has an arc-shaped groove 500 adapted to the outer wall of the cable 2. Furthermore, a clamping groove 501 is also provided on the clamping plate 50 at the outlet of the arc-shaped groove 500. The two clamping plates 50 are arranged to enclose the cable 2 between the two arc-shaped grooves 500. The first connecting ear plate 31 and the second connecting ear plate 41 are engaged within the clamping groove 501. The arc-shaped groove 500 allows the clamping plates 50 to fit tightly against the outer wall of the cable 2, increasing the contact area and providing greater friction, ensuring the cable 2 is securely clamped and less prone to slippage or detachment. The first connecting ear plate 31 and the second connecting ear plate 41, engaged within the clamping groove 501, effectively lock the fixed straight tube 40 and the protective straight tube 30, thereby enabling the installation of the protective sleeve 3 and the fixed sleeve 4 on the cable 2. Finally, the locking bolt 51 is inserted between the first connecting ear plate 31 and the second connecting ear plate 41, so that the two clamping plates 50 can be tightly fitted together. The clamping component 5 has a simple structure and is easy to install and remove. The clamping plate 50 can be easily removed by simply loosening the locking bolt 51, so as to replace or repair the cable 2.

[0031] Additionally, a relief groove 6 is provided on the clamping plate 50 to accommodate the locking bolt 51. The relief groove 6 accommodates the locking bolt 51, preventing the locking bolt 51 from being exposed and interfering with the use of the cable 2 or other applications.

[0032] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0033] It should be noted that in this application, 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.

[0034] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. 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 application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A cable protection connector, characterized in that, It includes: A flexible metal hose (1) has a cut-out at one end; A protective sleeve (3) having a cable passage for the cable (2) to pass through, the protective sleeve (3) being disposed inside a metal flexible tube (1), and one end of the protective sleeve (3) extending out from the cut-out opening to form an isolation section; A locking assembly is fitted onto the isolation section and the metal hose (1) and is used to lock the metal hose (1) and the protective sleeve (3) onto the cable (2), so that the isolation section separates the cable (2) from the cut end.

2. A cable protection connector as described in claim 1, characterized in that: The locking assembly includes: A fixing sleeve (4) is fitted onto the metal hose (1), and one end of the fixing sleeve (4) extends toward the cut end of the metal hose (1) and beyond the cut end of the metal hose (1). A clamping component (5) is connected between the isolation part and the fixing sleeve (4) for clamping the protective sleeve (3) and the fixing sleeve (4) onto the cable (2).

3. A cable protection connector as described in claim 2, characterized in that: The protective sleeve (3) includes: A protective straight tube (30) is fitted inside the metal flexible tube (1), and the isolation portion is formed at the end of the protective straight tube (30); The first connecting ear plate (31) is connected to the isolation part at the end of the protective straight tube (30), and the first connecting ear plate (31) is provided with an opening for the cable (2) to pass through.

4. A cable protection connector as described in claim 3, characterized in that: The fixing sleeve (4) includes: A fixed straight tube (40) is fitted onto the metal flexible tube (1), and one end of the fixed straight tube (40) extends beyond the cut end of the metal flexible tube (1); The second connecting ear plate (41) is connected to one end of the fixed straight tube (40) beyond the cut end of the metal hose (1), and the second connecting ear plate (41) is provided with an opening for the cable (2) to pass through.

5. A cable protection connector as described in claim 4, characterized in that: The first connecting ear plate (31) abuts against the second connecting ear plate (41), and the clamping member (5) is connected to the first connecting ear plate (31) and the second connecting ear plate (41). The clamping member (5) is used to clamp the first connecting ear plate (31) and the second connecting ear plate (41).

6. A cable protection connector as described in claim 5, characterized in that: The clamping component (5) includes: There are two clamping plates (50), each of which has an arc-shaped groove (500) adapted to the outer wall of the cable (2). The clamping plates (50) also have a clamping groove (501) located at the arc-shaped groove (500). The two clamping plates (50) are arranged to surround the cable (2) between the two arc-shaped grooves (500). The first connecting ear plate (31) and the second connecting ear plate (41) are engaged in the clamping groove (501). A locking bolt (51) is inserted between the first connecting ear plate (31) and the second connecting ear plate (41).

7. A cable protection connector as described in claim 6, characterized in that: The clamping plate (50) is provided with a relief groove (6) for accommodating the locking bolt (51).

8. A cable protection connector as described in claim 6, characterized in that: The clamping plate (50) has a semi-circular cross section.

9. A cable protection connector as described in claim 3, characterized in that: The first connecting ear plate (31) is connected to the protective straight tube (30) by a circular arc transition.

10. A cable protection connector as described in claim 3, characterized in that: The protective straight tube (30) is provided with a threaded section (7), and the protective straight tube (30) is threadedly engaged with the metal hose (1) through the threaded section (7).

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