Open type secondary cable sleeve suitable for live replacement

Abstract

The invention provides an open-type secondary cable sleeve suitable for live replacement. The open-type secondary cable sleeve comprises a sleeve main base body, a locking mechanism, a signboard and a transparent protective cover, an opening clamping groove for sleeving a secondary cable is formed in the bottom of the sleeve main base body, and the sleeve main base body is used for clamping the secondary cable sleeved in the opening clamping groove; the locking mechanism is connected with the sleeve main base body and is used for locking the secondary cable sleeved in the opening clamping groove; a signboard is arranged at the top of the sleeve main base body and is used for displaying identification information of a cable; the transparent protective cover covers the signboard, the peripheral edge of the transparent protective cover is fixedly connected with the peripheral edge of the transparent protective cover or the peripheral edge of the sleeve main base body, and the transparent protective cover is used for protecting the signboard from being influenced by the external environment. According to the invention, the cable label sleeve can be rapidly replaced without power failure.

Description

Technical Field

[0001] The invention relates to the technical field of secondary cable marking bushings, and in particular to an open secondary cable bushing suitable for live replacement. Background Art

[0002] In the secondary cable system of the substation, the secondary cable marking sleeve is one of the key accessories 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 occur or technical upgrades and replacements are required on site, power outages are often required for operation, which 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 secondary cable bushing suitable for live replacement, so as to realize rapid replacement of the cable number bushing without power outage.

[0004] In order to solve the above technical problems, the present invention provides an open secondary cable bushing suitable for live replacement, comprising a bushing main body, a locking mechanism, a sign and a transparent protective cover;

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

[0007] The identification plate is arranged 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 top of the identification plate, and the four peripheral edges of the transparent protective cover are fixedly connected to the four peripheral edges of the transparent protective cover or the four peripheral edges of the main base of the sleeve. The transparent protective cover is used to protect the identification plate from being affected by the external environment.

[0009] Preferably, the sleeve main body comprises a rectangular horizontal top plate and a first left curved plate, a second left curved plate, a first right curved plate and a second right curved plate located below the horizontal top, wherein the first left curved plate, the second left curved plate, the second right curved plate and the first right curved plate are arranged in sequence from left to right;

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

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

[0012] Preferably, the first left curved plate and the first right curved plate have the same arc length, the second left curved plate and the second right curved plate have the same arc length, and the arc length of the first left curved plate and the first right curved plate is greater than the arc length of the second left curved plate and the second right curved 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 curved plate, the second left curved plate, the first right curved plate and the second right curved plate are formed integrally and are all made of insulating materials.

[0015] Preferably, the open slot is interference fit with the secondary cable, and 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 are elastically deformed to clamp the secondary cable.

[0016] Preferably, the identification plate is a rectangular horizontal plate, and the bottom surface of the horizontal plate is in contact with the top surface of the horizontal top plate.

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

[0018] One end of the buckle body is provided with a convex portion for cooperating with the buckle groove to achieve locking; the axis of the buckle body is fixed to the second left arc-shaped plate by screws or rivets so that it can rotate around the axis;

[0019] The buckle groove is located on the second right side arc plate, corresponding to the convex part of the buckle body; when the buckle body is rotated to the locking position, the convex part thereof 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 in an open state when there is no external force, so as to facilitate 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 holes on 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 accidentally rotating, thereby keeping the secondary cable fixed.

[0022] Preferably, an insulating elastic material is applied on the surface of the buckle body, and when the buckle body is in the locking position, the elastic deformation ability of the elastic material is utilized to compress the secondary cable.

[0023] The open secondary cable bushing suitable for live replacement of the present invention has the following features:

[0024] Beneficial effects:

[0025] The replacement of traditional closed casing requires power outage, which leads to increased operation and maintenance costs. Since the present invention adopts an open design, the open design allows staff to quickly replace the cable marking casing, improving the efficiency of inspection and maintenance work. During the live replacement process, the locking mechanism of the present invention can ensure that the cable is firmly fixed in the casing, avoiding potential safety hazards caused by loose cables. The transparent protective cover can effectively protect the identification plate from the influence of the external environment (such as rain, dust, ultraviolet rays, etc.), ensuring that the identification information is clear and readable. The present invention is suitable for secondary cables of various specifications, has strong versatility and adaptability, reduces power outage time, improves the continuity of power supply, reduces operation and maintenance costs, and has significant economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the present invention.

[0027] Figure 1The present invention is a structural diagram of an open secondary cable bushing suitable for live replacement in an embodiment of the present invention.

[0028] Markings in the figure:

[0029] 1-main body of the casing, 11-horizontal top plate, 12-first left curved plate, 13-second left curved plate, 14-first right curved plate, 15-second right curved plate, 2-identification plate, 3-transparent protective cover. DETAILED DESCRIPTION

[0030] The detailed description of the drawings is intended as an illustration of the current embodiment of the present application, and is not intended to represent the only form in which the present application can be implemented. It should be understood that the same or equivalent functions can be accomplished by different embodiments intended to be included in the spirit and scope of the present application.

[0031] See also Figure 1 The embodiment of the present invention provides an open secondary cable bushing suitable for live replacement, comprising a bushing main body 1, a locking mechanism (not shown in the figure), a sign 2 and a transparent protective cover 3;

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

[0033] The locking mechanism is connected to the sleeve main body 1 and is used to lock the secondary cable inserted into the open slot;

[0034] The identification plate 2 is arranged 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 top of the identification plate 2, and 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 sleeve main base 1. The transparent protective cover 3 is used to protect the identification plate 2 from being affected by the external environment.

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

[0037] The bottom of the main body 1 of the sleeve is designed as an open slot. The size and shape of the open slot can adapt to secondary cables of different diameters. When it is necessary to install or replace the cable marking sleeve, 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 to ensure that the cable will not move easily.

[0038] The locking mechanism is connected to the main base 1 of the casing. It can be any mechanical structure that can provide a fixing effect, such as a screw, a buckle, a clamp, etc. After the cable is inserted into the open slot, the operator further fixes the cable through the locking mechanism. The function of the locking mechanism is to ensure that the cable will not loosen in the casing due to external force, and to keep the cable stable in the casing.

[0039] An identification plate 2 is arranged on the top of the casing main body 1, and the identification plate 2 is marked with identification information of the cable, such as the cable number, model, purpose, etc., to facilitate identification and management by operation and maintenance personnel.

[0040] The transparent protective cover 3 is used to cover the top of the signboard 2, and its four edges are fixedly connected to the four edges of the transparent protective cover itself or the four edges of the main sleeve base 1. The material of the transparent protective cover 3 is usually transparent plastic or other transparent materials with strong weather resistance. It can protect the signboard 2 from external environmental factors such as rain, dust, and ultraviolet rays, and make the identification information clearly visible.

[0041] In summary, the open secondary cable bushing of this embodiment can provide 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 sleeve base 1 includes a rectangular horizontal top plate 11 and a first left curved plate 12, a second left curved plate 13, a first right curved plate 14 and a second right curved plate 15 located below the horizontal top plate 11. The horizontal top plate 11 provides a planar support for fixing the identification plate 2 and also provides a basis for fixing the transparent protective cover 3. The first left curved plate 12, the second left curved plate 13, the second right curved plate 15 and the first right curved plate 14 are arranged in sequence from left to right to form the side wall and the bottom of the main sleeve base 1;

[0043] The left edge of the horizontal top plate 11 is connected to the left edge of the first left curved plate 12, and the right edge of the first left curved plate 12 is connected to the left edge of the second left curved plate 13; the right edge of the horizontal top plate 11 is connected to the left edge of the first right curved plate 14, and the right edge of the first right curved plate 14 is connected to the left edge of the second right curved plate 15; forming a continuous and closed side wall structure, providing stable support and fixation for the cable;

[0044] The opening slot (a portion for inserting a secondary cable) is formed between the second left curved plate 13 and the second right curved plate 15. The arc direction on the first left curved plate 12 is convex to the left, and the arc direction on the first right curved plate 14 is convex to the right, so that the main body 1 of the sleeve has good mechanical properties, including the ability to resist bending, compression and twisting.

[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, which can better adapt to the shape and size of the cable, provide tight clamping, and reduce friction between the cable and the sleeve.

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

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

[0048] Specifically, the formation of the first groove and the second groove can increase the structural strength and stability of the main body 1 of the sleeve; the presence of the groove enables the sleeve to better disperse force when subjected to external pressure or impact, reduce local stress concentration, and thus improve overall durability; the groove can also serve as ventilation, helping to dissipate the heat generated during cable operation and prevent temperature rise caused by heat accumulation, thereby protecting the cable and the sleeve; the presence of the groove may facilitate maintenance personnel to carry out inspection and maintenance work; for example, the groove can be used to detect the status of the cable, or to operate using tools.

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

[0050] Specifically, one-piece molding means that these parts are molded simultaneously in one manufacturing process, without seams or connection points. This design can improve the overall strength and sealing of the bushing and reduce the weaknesses that may arise from the assembly of multiple parts. The use of insulating materials to make these parts is to ensure that the bushing can be used safely in the power system. Insulating materials can prevent current leakage and protect the safety of operators and equipment. Insulating materials are also heat-resistant, corrosion-resistant, and aging-resistant, which helps the bushing maintain its performance under harsh environmental conditions.

[0051] In some embodiments, the open slot has an interference fit with the secondary cable, and 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, interference fit is a mechanical fit method in which the size of the mated component (cable in this case) is slightly larger than the size of the mating component (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 curved plate 13 and the second right curved 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 curved plate 13 and the second right curved plate 15 will undergo elastic deformation. This deformation is a design feature that allows the sleeve to expand during the cable insertion process to adapt to the diameter of the cable; once the cable is inserted, the elastic deformation of the second left curved plate 13 and the second right curved plate 15 will generate a clamping force to tightly fix the cable to prevent it from moving. This clamping action ensures that the cable is stable in the sleeve and will not fall off easily even under vibration or external force. When the cable is clamped, the space between the first groove and the second groove becomes smaller. This is because the second left-side arc plate 13 and the second right-side arc plate 15 move inward, reducing the volume of the groove. Therefore, the design of the first groove and the second groove can help the second left-side arc plate 13 and the second right-side arc plate 15 to deform, and can adapt to secondary cables of different sizes within the allowable range of deformation capacity.

[0053] In some embodiments, the identification plate 2 is a rectangular horizontal plate, and the bottom surface of the horizontal plate is in contact with the top surface of the horizontal top plate 11 .

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

[0055] One end of the buckle body is provided with a convex portion for cooperating 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 side arc plate 15, corresponding to the raised portion of the buckle body; when the buckle body is rotated to the locking position, the raised portion 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 in an open state when there is no external force, so as to facilitate 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 holes on 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 accidentally rotating, thereby keeping the secondary cable fixed.

[0059] Specifically, when inserting the secondary cable, the elastic force of the spring keeps the buckle body in an open state, and the operator can easily insert the cable into the open slot; once the cable is in place, the operator rotates the buckle body so that its protruding part enters the buckle groove, thereby locking the cable; in order to prevent the buckle body from being accidentally unlocked, the operator inserts the safety pin into the hole to ensure that the cable is securely fixed in the casing; the design of this locking mechanism makes the fixation of the cable convenient and reliable, especially in situations where the cable needs to be frequently replaced or maintained, providing an efficient and safe workflow.

[0060] In some embodiments, an insulating elastic material is applied on the surface of the buckle body, and when the buckle body is in a locked position, the elastic deformation ability of the elastic material is utilized to compress the secondary cable.

[0061] Specifically, when the secondary cable is inserted, the buckle body remains in an open state due to the action of the spring, and the insulating elastic material does not exert pressure on the cable at this time; when the cable is inserted into place, the buckle 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 to fix it in the sleeve; after the buckle body is locked and fixed by the safety pin, the insulating elastic material continues to maintain pressure on the cable to ensure that the cable will not loosen; this design improves the reliability and safety of the sleeve fixing the cable, and also makes the sleeve more flexible and able to adapt to cables of different specifications.

[0062] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. An open secondary cable bushing suitable for live replacement, characterized in that: It includes a sleeve main body, a locking mechanism, a logo plate and a transparent protective cover; The bottom of the sleeve main body is formed with an open slot for inserting the secondary cable, and the sleeve main body 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 inserted into the open slot; The identification plate is arranged 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 top of the identification plate, and the four peripheral edges of the transparent protective cover are fixedly connected to the four peripheral edges of the transparent protective cover or the four peripheral edges of the main base of the sleeve. The transparent protective cover is used to protect the identification plate from being affected by the external environment.

2. The open secondary cable bushing according to claim 1, characterized in that: The main body of the sleeve includes a rectangular horizontal top plate and a first left curved plate, a second left curved plate, a first right curved plate and a second right curved plate located below the horizontal top, wherein the first left curved plate, the second left curved plate, the second right curved plate and the first right curved plate are arranged in sequence from left to right; The left edge of the horizontal top plate is connected to the left edge of the first left curved plate, and the right edge of the first left curved plate is connected to the left edge of the second left curved plate; the right edge of the horizontal top plate is connected to the left edge of the first right curved plate, and the right edge of the first right curved plate is connected to the left edge of the second right curved plate; The opening slot is formed between the second left-side arc plate and the second right-side arc plate, the arc direction on the first left-side arc plate is convex to the left, the arc direction on the second left-side arc plate is convex to the right, the arc direction on the first right-side arc plate is convex to the right, and the arc direction on the second right-side arc plate is convex to the left.

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

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

5. The open secondary cable bushing according to claim 4, characterized in that: The horizontal top, the first left curved plate, the second left curved plate, the first right curved plate and the second right curved plate are formed in one piece and are all made of insulating materials.

6. The open secondary cable bushing according to claim 4, characterized in that: The open slot is interference-fitted with the secondary cable, and 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-side arc plate and the second right-side arc plate are elastically deformed to clamp the secondary cable.

7. The open secondary cable bushing according to any one of claims 2 to 6, characterized in that: The identification plate is a rectangular horizontal plate, and the bottom surface of the horizontal plate is in contact with the top surface of the horizontal top plate.

8. The open secondary cable bushing according to any one of claims 2 to 6, characterized in that: The locking mechanism includes a buckle body, a buckle groove, a spring and a safety pin. One end of the buckle body is provided with a convex portion for cooperating with the buckle groove to achieve locking; the axis of the buckle body is fixed to the second left arc-shaped plate by screws or rivets so that it can rotate around the axis; The buckle groove is located on the second right side arc plate, corresponding to the convex part of the buckle body; when the buckle body is rotated to the locking position, the convex part thereof enters the buckle groove, thereby fixing the cable; 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 in an open state when there is no external force, so as to facilitate 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 the holes on 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 accidentally rotating, thereby keeping the secondary cable fixed.

9. The open secondary cable bushing according to claim 8, characterized in that: An insulating elastic material is applied on the surface of the buckle body. When the buckle body is in a locked position, the elastic deformation capability of the elastic material is utilized to compress the secondary cable.

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