Open secondary cable bushing suitable for live replacement

Abstract

The application provides an open secondary cable sleeve suitable for live replacement, which comprises a sleeve main body, a locking mechanism, a signboard and a transparent protective cover; the bottom of the sleeve main body is provided with an opening clamping groove for sleeing a secondary cable, and the sleeve main body is used for clamping the secondary cable sleeed in the opening clamping groove; the locking mechanism is connected with the sleeve main body and is used for locking the secondary cable sleeed in the opening clamping groove; the top of the sleeve main body is provided with the signboard, and the signboard is used for displaying the identification information of the cable; the transparent protective cover covers the signboard, the periphery of the transparent protective cover is fixedly connected with the periphery of the transparent protective cover or the periphery of the sleeve main body, and the transparent protective cover is used for protecting the signboard from the influence of the external environment. The application can realize quick replacement of the cable label sleeve without power-off.

Description

Technical Field

[0001] This invention relates to the field of secondary cable marking sleeve technology, specifically to an open-type secondary cable sleeve suitable for live replacement. Background Technology

[0002] In the secondary cable system of a substation, the secondary cable marking sleeve is one of the key components to ensure the normal operation and maintenance of the cable. However, the existing secondary cable marking sleeves are mostly designed as closed structures. Once changes are made or on-site technical upgrades and replacements are required, power outages are often necessary. This not only affects the continuity of power supply and increases operation and maintenance costs, but also brings inconvenience to inspection and maintenance work. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an open-type secondary cable sleeve suitable for live replacement, which enables cable labeling sleeve to be replaced quickly without power outage.

[0004] To solve the above-mentioned technical problems, the present invention provides an open-type secondary cable sleeve suitable for live replacement, including a main body of the sleeve, a locking mechanism, an identification plate and a transparent protective cover;

[0005] The bottom of the main body of the sleeve is formed with an open slot for inserting a secondary cable, and the main body of the sleeve is used to clamp the secondary cable inserted into the open slot.

[0006] The locking mechanism is connected to the main body of the sleeve and is used to lock the secondary cable that is inserted into the open slot.

[0007] The identification plate is installed on the top of the main body of the sleeve, and the identification plate is used to display the identification information of the cable;

[0008] The transparent protective cover covers the signboard, and the four edges of the transparent protective cover are fixedly connected to the four edges of the transparent protective cover or the four edges of the main body of the sleeve. The transparent protective cover is used to protect the signboard from the influence of the external environment.

[0009] Preferably, the main body of the sleeve includes a rectangular horizontal top plate and a first left-side arc-shaped plate, a second left-side arc-shaped plate, a first right-side arc-shaped plate and a second right-side arc-shaped plate located below the horizontal top plate, wherein the first left-side arc-shaped plate, the second left-side arc-shaped plate, the second right-side arc-shaped plate and the first right-side arc-shaped plate are arranged sequentially from left to right;

[0010] The left edge of the horizontal top plate is connected to the left edge of the first left arc plate, and the right edge of the first left arc plate is connected to the left edge of the second left arc plate; the right edge of the horizontal top plate is connected to the left edge of the first right arc plate, and the right edge of the first right arc plate is connected to the left edge of the second right arc plate.

[0011] The opening slot is formed between the second left arc-shaped plate and the second right arc-shaped plate. The arc direction of the first left arc-shaped plate is convex to the left, the arc direction of the second left arc-shaped plate is convex to the right, the arc direction of the first right arc-shaped plate is convex to the right, and the arc direction of the second right arc-shaped plate is convex to the left.

[0012] Preferably, the first left arc plate and the first right arc plate have the same arc length, the second left arc plate and the second right arc plate have the same arc length, and the arc length of the first left arc plate and the first right arc plate is greater than the arc length of the second left arc plate and the second right arc plate.

[0013] Preferably, a first groove is formed between the first left-side arc-shaped plate and the second left-side arc-shaped plate, and a second groove is formed between the first right-side arc-shaped plate and the second right-side arc-shaped plate.

[0014] Preferably, the horizontal top, the first left-side arc-shaped plate, the second left-side arc-shaped plate, the first right-side arc-shaped plate, and the second right-side arc-shaped plate are integrally formed and are all made of insulating material.

[0015] Preferably, the open slot is interference-fitted with the secondary cable. When the secondary cable is not inserted into the open slot, the width of the open slot is smaller than the diameter of the secondary cable. When the secondary cable is not inserted into the open slot, the second left arc plate and the second right arc plate undergo elastic deformation to clamp the secondary cable.

[0016] Preferably, the sign is a rectangular horizontal plate, the bottom surface of which is attached to the top surface of the horizontal top plate.

[0017] Preferably, the locking mechanism includes a buckle body, a buckle groove, a spring, and a safety pin.

[0018] One end of the buckle body is provided with a protrusion for engaging with the buckle groove to achieve locking; the axis of the buckle body is fixed to the second left arc plate by screws or rivets, allowing it to rotate around the axis;

[0019] The buckle groove is located on the second right arc-shaped plate and corresponds to the protrusion of the buckle body; when the buckle body is rotated to the locked position, its protrusion enters the buckle groove, thereby fixing the cable.

[0020] The spring is installed between the buckle body and the second arc-shaped plate, and surrounds the fixed axis; the spring is used to provide elastic force so that the buckle body remains open when no external force is applied, which facilitates the insertion and removal of the secondary cable;

[0021] The safety pin is a slender metal rod with a head at one end for easy operation. The safety pin passes through the hole in the buckle body and the second left arc plate. When the buckle body is in the locked position, the safety pin is inserted into the hole to prevent the buckle body from rotating accidentally, thereby keeping the secondary cable fixed.

[0022] Preferably, the surface of the buckle body is covered with an insulating elastic material, and when the buckle body is in the locked position, the elastic deformation ability of the elastic material is used to press the secondary cable.

[0023] An open-type secondary cable bushing suitable for live replacement according to the present invention has the following features:

[0024] Beneficial effects:

[0025] Traditional closed-type conduit replacement requires power outages, increasing maintenance costs. This invention, however, employs an open design, allowing for rapid replacement of cable-labeled conduits, improving inspection and maintenance efficiency. During live replacement, the locking mechanism ensures the cable is securely fixed within the conduit, preventing potential safety hazards caused by cable loosening. The transparent protective cover effectively protects the identification tags from external environmental factors (such as rain, dust, and UV radiation), ensuring clear readability of the information. This invention is applicable to various specifications of secondary cables, exhibiting strong versatility and adaptability, reducing power outage time, improving power supply continuity, and lowering maintenance costs, resulting in significant economic and social benefits. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of the present invention.

[0027] Figure 1This is a structural diagram of an open-type secondary cable sleeve suitable for live replacement according to an embodiment of the present invention.

[0028] Marked in the image:

[0029] 1-Casing main body, 11-Horizontal top plate, 12-First left arc-shaped plate, 13-Second left arc-shaped plate, 14-First right arc-shaped plate, 15-Second right arc-shaped plate, 2-Identification plate, 3-Transparent protective cover. Detailed Implementation

[0030] The detailed description of the accompanying drawings is intended to illustrate the present embodiments of this application and is not intended to represent only the forms in which this application can be implemented. It should be understood that the same or equivalent functions can be accomplished by different embodiments intended to be included within the spirit and scope of this application.

[0031] See Figure 1 The present invention provides an open-type secondary cable sleeve suitable for live replacement, including a main body 1 of the sleeve, a locking mechanism (not shown in the figure), an identification plate 2 and a transparent protective cover 3;

[0032] The bottom of the main body 1 of the sleeve is formed with an open slot for inserting the secondary cable, and the main body 1 of the sleeve is used to clamp the secondary cable inserted into the open slot.

[0033] The locking mechanism is connected to the main body 1 of the sleeve and is used to lock the secondary cable that is fitted into the open slot.

[0034] The identification plate 2 is provided on the top of the main body 1 of the sleeve, and the identification plate 2 is used to display the identification information of the cable;

[0035] The transparent protective cover 3 covers the sign 2. The four edges of the transparent protective cover 3 are fixedly connected to the four edges of the transparent protective cover 3 or the four edges of the main body 1 of the sleeve. The transparent protective cover 3 is used to protect the sign 2 from the influence of the external environment.

[0036] Specifically, the working principle of the above-mentioned open-type secondary cable bushing is as follows:

[0037] The bottom of the main body 1 of the sleeve is designed with an open slot. The size and shape of this open slot can accommodate secondary cables of different diameters. When it is necessary to install or replace the sleeve with a cable specification, the operator first inserts the secondary cable into the open slot. The inner wall of the main body 1 of the sleeve has a certain elasticity or clamping force, which can fix the cable in the sleeve and ensure that the cable will not move easily.

[0038] The locking mechanism is connected to the main body 1 of the sleeve. It can be any mechanical structure that can provide a fixing function, such as screws, buckles, or clamps. After the cable is inserted into the open slot, the operator can further fix the cable through the locking mechanism. The function of the locking mechanism is to ensure that the cable will not loosen due to external force in the sleeve and to keep the cable stable in the sleeve.

[0039] A label 2 is installed on the top of the main body 1 of the sleeve. The label 2 is marked with the cable identification information, such as cable number, model, and purpose, so as to facilitate the identification and management of maintenance personnel.

[0040] The transparent protective cover 3 is used to cover the sign 2. Its four edges are fixedly connected to the four edges of the transparent protective cover itself or the four edges of the main body 1 of the sleeve. The material of the transparent protective cover 3 is usually a weather-resistant transparent plastic or other transparent material. It can protect the sign 2 from external environmental factors such as rain, dust, and ultraviolet rays, and can also make the sign information clearly visible.

[0041] In summary, the open-type secondary cable bushing of this embodiment provides a fast, safe, and easy-to-maintain cable identification solution while ensuring the stable operation of the power system.

[0042] In some embodiments, the main body 1 of the sleeve includes a rectangular horizontal top plate 11 and a first left arc plate 12, a second left arc plate 13, a first right arc plate 14 and a second right arc plate 15 located below the horizontal top plate 11. The horizontal top plate 11 provides planar support for fixing the sign 2 and also provides a base for fixing the transparent protective cover 3. The first left arc plate 12, the second left arc plate 13, the second right arc plate 15 and the first right arc plate 14 are arranged from left to right to form the sidewall and bottom of the main body 1 of the sleeve.

[0043] The left edge of the horizontal top plate 11 is connected to the left edge of the first left arc-shaped plate 12, and the right edge of the first left arc-shaped plate 12 is connected to the left edge of the second left arc-shaped plate 13; the right edge of the horizontal top plate 11 is connected to the left edge of the first right arc-shaped plate 14, and the right edge of the first right arc-shaped plate 14 is connected to the left edge of the second right arc-shaped plate 15; thus forming a continuous, closed sidewall structure that provides stable support and fixation for the cable.

[0044] The opening slot (for inserting the secondary cable) is formed between the second left arc-shaped plate 13 and the second right arc-shaped plate 15. The arc direction on the first left arc-shaped plate 12 protrudes to the left, and the arc direction on the first right arc-shaped plate 14 protrudes to the right, giving the main body 1 of the sleeve good mechanical properties, including resistance to bending, compression, and torsion.

[0045] The arc direction on the second left arc plate 13 is convex to the right, and the arc direction on the second right arc plate 15 is convex to the left. This can better adapt to the shape and size of the cable, provide a tight clamping, and reduce friction between the cable and the sleeve.

[0046] In some embodiments, the first left arc plate 12 and the first right arc plate 14 have the same arc length, the second left arc plate 13 and the second right arc plate 15 have the same arc length, and the arc length of the first left arc plate 12 and the first right arc plate 14 is greater than the arc length of the second left arc plate 13 and the second right arc plate 15. Specifically, the symmetry of the arc plates on the left and right sides also ensures that the sleeve can distribute the force evenly when fixing the cable, reducing structural deformation or damage caused by uneven force.

[0047] In some embodiments, a first groove is formed between the first left arcuate plate 12 and the second left arcuate plate 13, and a second groove is formed between the first right arcuate plate 14 and the second right arcuate plate 15.

[0048] Specifically, the formation of the first and second grooves can increase the structural strength and stability of the main body 1 of the bushing; the presence of the grooves allows the bushing to better disperse the force when subjected to external pressure or impact, reducing local stress concentration and thus improving overall durability; the grooves can also serve as ventilation, helping to dissipate the heat generated during cable operation and preventing temperature rise due to heat accumulation, thereby protecting the cable and bushing; the presence of the grooves may facilitate inspection and maintenance work by maintenance personnel; for example, the condition of the cable can be detected through the grooves, or tools can be used for operation.

[0049] In some embodiments, the horizontal top 11, the first left-side arc-shaped plate 12, the second left-side arc-shaped plate 13, the first right-side arc-shaped plate 14, and the second right-side arc-shaped plate 15 are integrally formed and are all made of insulating material.

[0050] Specifically, one-piece molding means that these components are formed simultaneously in a single manufacturing process, without seams or connection points. This design improves the overall strength and sealing of the bushing, reducing weaknesses that may arise from assembling multiple components. The use of insulating materials in these components ensures the safe use of the bushing in the power system. The insulation prevents current leakage and protects operators and equipment. The insulating material also possesses heat resistance, corrosion resistance, and aging resistance, which helps the bushing maintain its performance under harsh environmental conditions.

[0051] In some embodiments, the open slot is interference-fitted with the secondary cable. When the secondary cable is not inserted into the open slot, the width of the open slot is smaller than the diameter of the secondary cable. When the secondary cable is not inserted into the open slot, the second left arc plate 13 and the second right arc plate 15 undergo elastic deformation to clamp the secondary cable.

[0052] Specifically, an interference fit is a mechanical fit in which the size of the mating component (the cable in this example) is slightly larger than the size of the mating component (the open slot). When the cable is inserted into the open slot, a certain force needs to be applied to make the two fit together. When the secondary cable is not inserted into the open slot, the second left arc plate 13 and the second right arc plate 15 are in an undeformed state. At this time, the width of the open slot is smaller than the cable diameter. When the secondary cable is forcibly inserted into the open slot, the second left arc plate 13 and the second right arc plate 15 will undergo elastic deformation. This deformation is a design feature that allows the sleeve to expand during cable insertion to accommodate the cable diameter. Once the cable is inserted, the elastic deformation of the second left arc plate 13 and the second right arc plate 15 will generate a clamping force, tightly fixing the cable and preventing it from moving. This clamping action ensures that the cable is stable inside the sleeve and will not easily fall off even under vibration or external force. When the cable is clamped, the space between the first and second grooves becomes smaller because the second left arc plate 13 and the second right arc plate 15 move inward, reducing the volume of the grooves. Therefore, the design of the first and second grooves can help the second left arc plate 13 and the second right arc plate 15 to deform, and can accommodate secondary cables of different sizes within the allowable range of deformation capacity.

[0053] In some embodiments, the sign 2 is a rectangular horizontal plate, the bottom surface of which is attached to the top surface of the horizontal top plate 11.

[0054] In some embodiments, the locking mechanism includes a latch body, a latch groove, a spring, and a safety pin;

[0055] One end of the buckle body is provided with a protrusion for engaging with the buckle groove to achieve locking; the axis of the buckle body is fixed to the second left arc-shaped plate 13 by screws or rivets, so that it can rotate around the axis;

[0056] The buckle groove is located on the second right arc-shaped plate 15 and corresponds to the protrusion of the buckle body; when the buckle body is rotated to the locked position, its protrusion enters the buckle groove, thereby fixing the cable.

[0057] The spring is installed between the buckle body and the second arc-shaped plate, and surrounds the fixed axis; the spring is used to provide elastic force so that the buckle body remains open when no external force is applied, which facilitates the insertion and removal of the secondary cable;

[0058] The safety pin is a slender metal rod with a head at one end for easy operation; the safety pin passes through the hole in the buckle body and the second left arc plate 13; when the buckle body is in the locked position, the safety pin is inserted into the hole to prevent the buckle body from rotating accidentally, thereby keeping the secondary cable fixed.

[0059] Specifically, when inserting the secondary cable, the spring force keeps the buckle body open, allowing the operator to easily insert the cable into the open slot. Once the cable is in place, the operator rotates the buckle body so that its protrusion enters the buckle groove, thereby locking the cable. To prevent the buckle body from accidentally unlocking, the operator inserts a safety pin into the hole to ensure the cable is securely fixed inside the sleeve. This locking mechanism design makes cable fixing both convenient and reliable, especially in situations where frequent cable replacement or maintenance is required, providing an efficient and safe workflow.

[0060] In some embodiments, the surface of the buckle body is covered with an insulating elastic material, and when the buckle body is in the locked position, the elastic deformation capability of the elastic material is used to press the secondary cable.

[0061] Specifically, when the secondary cable is inserted, the clip body remains open due to the action of the spring, and the insulating elastic material does not exert pressure on the cable at this time. After the cable is inserted into place, the clip body is rotated to the locked position. At this time, the insulating elastic material begins to undergo elastic deformation, and the force generated by the deformation presses the cable, fixing it in place inside the sleeve. After the clip body is locked and secured by the safety pin, the insulating elastic material continues to maintain pressure on the cable, ensuring that the cable will not loosen. This design improves the reliability and safety of the sleeve in fixing the cable, and also makes the sleeve more flexible, able to adapt to cables of different specifications.

[0062] The above description discloses only preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. An open-type secondary cable bushing suitable for live-line replacement, characterized in that, Includes the main casing body, locking mechanism, identification plate, and transparent protective cover; The bottom of the main body of the sleeve is formed with an open slot for inserting a secondary cable, and the main body of the sleeve is used to clamp the secondary cable inserted into the open slot. The locking mechanism is connected to the main body of the sleeve and is used to lock the secondary cable that is inserted into the open slot. The identification plate is installed on the top of the main body of the sleeve, and the identification plate is used to display the identification information of the cable; The transparent protective cover covers the signboard, and the four edges of the transparent protective cover are fixedly connected to the four edges of the signboard or the four edges of the main body of the sleeve. The transparent protective cover is used to protect the signboard from the influence of the external environment. The main body of the sleeve includes a rectangular horizontal top plate and a first left-side arc-shaped plate, a second left-side arc-shaped plate, a first right-side arc-shaped plate, and a second right-side arc-shaped plate located below the horizontal top plate. The first left-side arc-shaped plate, the second left-side arc-shaped plate, the second right-side arc-shaped plate, and the first right-side arc-shaped plate are arranged sequentially from left to right. The left edge of the horizontal top plate is connected to the left edge of the first left-side arc-shaped plate, and the right edge of the first left-side arc-shaped plate is connected to the left edge of the second left-side arc-shaped plate. The right edge of the horizontal top plate is connected to the left edge of the first right-side arc-shaped plate, and the right edge of the first right-side arc-shaped plate is connected to the left edge of the second right-side arc-shaped plate. An opening groove is formed between the second left-side arc-shaped plate and the second right-side arc-shaped plate. The arc direction of the first left-side arc-shaped plate is convex to the left, the arc direction of the second left-side arc-shaped plate is convex to the right, the arc direction of the first right-side arc-shaped plate is convex to the right, and the arc direction of the second right-side arc-shaped plate is convex to the left. The locking mechanism includes a latch body, a latch groove, a spring, and a safety pin. One end of the latch body has a protrusion for engaging with the latch groove to achieve locking. The axis of the latch body is fixed to the second left-side arc-shaped plate by screws or rivets, allowing it to rotate around the axis. The latch groove is located on the second right-side arc-shaped plate, corresponding to the protrusion of the latch body. When the latch body rotates to the locked position, its protrusion enters the latch groove, thereby securing the cable. The spring is installed between the latch body and the second left-side arc-shaped plate, surrounding the fixed axis. The spring provides elasticity, keeping the latch body open when no external force is applied, facilitating the insertion and removal of the secondary cable. The safety pin is a slender metal rod with a head at one end for easy operation. The safety pin passes through holes in the latch body and the second left-side arc-shaped plate. When the latch body is in the locked position, the safety pin is inserted into the hole to prevent accidental rotation of the latch body, thus maintaining the secondary cable's fixation.

2. The open-type secondary cable bushing according to claim 1, characterized in that, The first left-side arc plate and the first right-side arc plate have the same arc length, the second left-side arc plate and the second right-side arc plate have the same arc length, and the arc length of the first left-side arc plate and the first right-side arc plate is greater than the arc length of the second left-side arc plate and the second right-side arc plate.

3. The open-type secondary cable sleeve according to claim 2, characterized in that, A first groove is formed between the first left-side arc-shaped plate and the second left-side arc-shaped plate, and a second groove is formed between the first right-side arc-shaped plate and the second right-side arc-shaped plate.

4. The open-type secondary cable bushing according to claim 3, characterized in that, The horizontal top plate, the first left-side arc-shaped plate, the second left-side arc-shaped plate, the first right-side arc-shaped plate, and the second right-side arc-shaped plate are integrally formed and are all made of insulating material.

5. The open-type secondary cable bushing according to claim 3, characterized in that, The open slot is interference-fitted with the secondary cable. When the secondary cable is not inserted into the open slot, the width of the open slot is smaller than the diameter of the secondary cable. When the secondary cable is not inserted into the opening slot, the second left arc-shaped plate and the second right arc-shaped plate undergo elastic deformation to clamp the secondary cable.

6. The open-type secondary cable bushing according to any one of claims 1 to 5, characterized in that, The sign is a rectangular horizontal plate, the bottom surface of which is attached to the top surface of the horizontal top plate.

7. The open-type secondary cable bushing according to any one of claims 1 to 5, characterized in that, The surface of the buckle body is covered with an insulating elastic material. When the buckle body is in the locked position, the elastic deformation ability of the elastic material is used to press the secondary cable.

Images