Detachable bypass cable hoisting equipment and working method thereof

Abstract

The invention belongs to the technical field of vertical lifting bypass cables, and provides a detachable bypass cable lifting device and a working method thereof.The detachable bypass cable lifting device comprises an insulating rope lifting piece, an insulating rod connected with the insulating rope lifting piece, a cross beam connected with the insulating rod and a bridge-shaped piece connected with the cross beam; the insulation protection cylinder is arranged on the cross beam and can provide insulation protection for the end of the bypass cable; an insulation protection cylinder capable of providing insulation protection for the bypass cable end is arranged on the cross beam, and the insulation protection cylinder comprises a supporting seat arranged on the cross beam and an insulation cylinder detachably arranged on the supporting seat through a clamping assembly; after the operation is completed, the end of the bypass cable is placed in the insulation protection cylinder, and discharging is carried out after the end of the bypass cable reaches the ground, so that the problems of complex wrapping process, untight wrapping, easy falling and the like existing in the mode of wrapping the end of the bypass cable by an insulation blanket are solved, the operation efficiency and the operation safety are improved, and potential safety hazards are avoided.

Description

Technical Field

[0001] This invention belongs to the field of vertical lifting bypass cable technology, and particularly relates to a lifting device for detachable bypass cables and its working method. Background Technology

[0002] Vertically lifting bypass cables is a critical step in live bypass operations. Improper protection during the lifting process can cause internal damage to the cables, and in severe cases, damage to their external insulation layer, posing significant safety hazards.

[0003] After the operation is completed, the cable end needs to be discharged. This is usually done by wrapping it with an insulating blanket and discharging it after it reaches the ground. However, the process of wrapping the insulating blanket is complicated, the wrapping is not tight, and it is easy for it to fall off, which poses certain safety hazards. If a fixed container is used on the hoisting equipment instead of an insulating blanket, the problems of complicated process and loose wrapping can be solved. However, the fixed container increases the weight and structural complexity of the fixed container when the cable end does not need to be wrapped for discharge. Summary of the Invention

[0004] To address the aforementioned problems, this invention proposes a detachable hoisting device for bypass cables and its operating method. After the operation is completed, the bypass cable end is placed inside an insulating protective cylinder, and discharge is performed upon reaching the ground. This solves the problems of complex wrapping procedures, incomplete wrapping, and easy falling that exist when wrapping the bypass cable end with an insulating blanket, thus improving operational efficiency and safety and avoiding safety hazards. Furthermore, the insulating cylinder can be flexibly disassembled from the support base, improving flexibility.

[0005] To achieve the above objectives, in a first aspect, the present invention provides a hoisting device for detachable bypass cables, employing the following technical solution: A detachable bypass cable hoisting device includes an insulating rope hoisting component, an insulating rod connected to the insulating rope hoisting component, a crossbeam connected to the insulating rod, a bridge-type component connected to the crossbeam, and an insulating protective cylinder provided on the crossbeam to provide insulation protection for the bypass cable end. The insulating protective cylinder includes a support base disposed on the crossbeam, and an insulating cylinder detachably disposed on the support base via a snap-fit ​​assembly.

[0006] Furthermore, a backup safety hook is provided on one end of the insulating rod near the lifting part of the insulating rope.

[0007] Furthermore, the insulating protective cylinder is disposed at one end of the crossbeam, and a support member is disposed at the end of the crossbeam away from the insulating protective cylinder.

[0008] Furthermore, the support member has a U-shaped structure.

[0009] Furthermore, the bridge-shaped component is provided with a clamp and a locking assembly.

[0010] Furthermore, the clamp includes a connecting block disposed on the bridge-shaped component, and a clamping block rotatably disposed on the connecting block via a first pivot pin; the clamping block is provided with an arc-shaped portion and a locking portion.

[0011] Furthermore, the locking assembly includes a screw rotatably mounted on the bridge-shaped member via a second pin, and a nut mounted on the screw; the screw is adapted to the locking part.

[0012] Furthermore, the support base is a circular mechanism; the snap-fit ​​assembly includes a plurality of grooves and protrusions disposed on the inner wall of the support base, a spring lock disposed on the protrusion, a protrusion disposed on the outer wall of the insulating cylinder that can pass through the groove, a slot disposed on the outer wall of the insulating cylinder that can engage with the spring lock, and a limiting platform disposed on the outer wall of the insulating cylinder.

[0013] Furthermore, one end of the boss is chamfered.

[0014] To achieve the above objectives, in a second aspect, the present invention also provides a method for operating a hoisting device for a detachable bypass cable, employing the following technical solution: A method for operating a hoisting device for detachable bypass cables, using the hoisting device for detachable bypass cables as described in the first aspect, comprising: After fixing the bypass cable to the bridge-type component, use the insulating rope to lift the insulating rope lifting component to achieve vertical lifting of the bypass cable; after the operation is completed, put the end of the bypass cable into the insulating protective cylinder, and discharge it after it reaches the ground.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention provides an insulating protective cylinder on a crossbeam to provide insulation protection for the ends of bypass cables. The insulating protective cylinder includes a support base on the crossbeam and an insulating cylinder that is detachably mounted on the support base via a snap-fit ​​assembly. After the operation is completed, the ends of the bypass cables are placed inside the insulating protective cylinder and discharged upon reaching the ground. This solves the problems of complex wrapping procedures, incomplete wrapping, and easy falling off that exist when wrapping the ends of bypass cables with insulating blankets, thus improving work efficiency and safety and avoiding safety hazards. Furthermore, the insulating cylinder can be flexibly removed from the support base, improving flexibility.

[0016] 2. In this invention, the spring in the spring lock has been optimized so that the friction provided by the spring can not only ensure the stability of the connection, but also avoid the problem of inconvenient disassembly of the insulating cylinder caused by the connection being too firm. Attached Figure Description

[0017] The accompanying drawings, which form part of this embodiment, are used to provide a further understanding of this embodiment. The illustrative embodiments and their descriptions are used to explain this embodiment and do not constitute an improper limitation of this embodiment.

[0018] Figure 1 This is a schematic diagram of the protective support structure according to Embodiment 1 of the present invention; Figure 2 This is a rear view of the protective bracket according to Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the bypass cable lifting according to Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the clamp and locking assembly structure of Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the insulating protective cylinder structure according to Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the support structure of Embodiment 1 of the present invention; Figure 7 This is a schematic diagram of the insulating cylinder structure of Embodiment 1 of the present invention; The components include: 1. Insulating rope lifting device; 2. Backup safety hook mounting device; 3. Insulating rod; 4. Crossbeam; 5. Support component; 6. Bridge-type component; 7. Clamp; 71. Connecting block; 72. First shaft pin; 73. Clamping block; 74. Arc-shaped part; 75. Locking part; 8. Locking assembly; 81. Second pin shaft; 82. Screw; 83. Nut; 9. Insulating protective cylinder; 91. Support base; 92. Snap-fit ​​assembly; 921. Groove; 922. Boss; 923. Chamfer; 924. Spring lock; 925. Protrusion; 926. Slot; 927. Limiting platform; 93. Insulating cylinder; 10. Bypass cable. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0021] Example 1: This embodiment provides a detachable hoisting device for bypass cables, which can protect bypass cables from damage and quickly and effectively protect the ends of bypass cables, thereby improving the service life of bypass cables and eliminating safety hazards.

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, the protective support in this embodiment includes an insulating rope lifting component 1, a backup safety hook mounting component 2, an insulating rod 3, a crossbeam 4, a support component 5, a bridge-shaped component 6, a clamp 7, a locking assembly 8, and an insulating protective cylinder 9. During operation, the insulating rope is tied to the insulating rope lifting component 1, and the rope is pulled at a height to achieve the purpose of vertically lifting the bypass cable 10 along with the protective support. The backup safety hook mounting component 2 is used to mount the backup safety hook. After the protective support reaches the work point, the operator removes the backup safety hook and mounts it onto the main line. The insulating rod 3 connects the various components and serves as the main insulation. The crossbeam 4 is fixed to the insulating rod 3, and the support component 5 and the insulating protective cylinder 9 are fixed to both ends of the crossbeam 4, respectively. The bridge-shaped component 6 fixes and protects the bypass cable 10. It is a bridge-shaped structure with an upper arc radius greater than the minimum allowable radius of curvature of the bypass cable 10 to ensure that the cable is not damaged during lifting. The bridge-shaped component 6 is an asymmetrical structure.

[0023] The insulating rope lifting component 1 and the backup safety hook mounting component 2 can be installed on the insulating rod 3 by means of bolt connection or snap-fit; the middle position of the crossbeam 4 can be provided with a connection hole or other structure, and connected to the insulating rod 3 by means of bolt connection or other means; the support component 5 has a U-shaped structure, which facilitates the support of the bypass cable 10; the support component 5 can be installed on the crossbeam 4 by means of bolt connection or other means. Specifically, the insulating protective cylinder 9 is set at one end of the crossbeam 4, and the support component 5 is set at the end of the crossbeam 4 away from the insulating protective cylinder 9.

[0024] The bridge-type component 6 is provided with the clamp 7 and the locking assembly 8. Optionally, such as Figure 4 As shown, the clamp 7 includes a connecting block 71 disposed on the bridge-type component 6, and a clamping block 73 rotatably disposed on the connecting block 72 via a first shaft pin 72; the clamping block 73 is provided with an arc-shaped portion 74 and a locking portion 75. During operation, before the bypass cable 10 is placed into the bridge-type component 6, the clamping block 73 can be rotated open; after the bypass cable 10 is placed into the bridge-type component 6, the clamping block 73 is rotated to close, and the arc-shaped portion 74 contacts the bypass cable 10 to fix the bypass cable 10; then, the clamp 7 is locked by the action of the locking component 8 on the locking portion 75; similarly, when it is necessary to remove the bypass cable 10, the locking component 8 releases the locking portion 75, and the clamping block 73 rotates open again, so that the bypass cable 10 can be removed from the bridge-type component 6.

[0025] The locking assembly 8 includes a screw 82 rotatably mounted on the bridge-shaped member 6 via a second pin 81, and a nut 83 mounted on the screw 82. The screw 82 is adapted to the locking part 75, which has a slot structure. During operation, the screw 82 is rotated and engaged within the locking part 75, and the nut 83 is tightened to lock the mechanism. Similarly, when it is necessary to release the locking part 75, the nut 83 is first loosened, and then the screw 82 is rotated to separate it from the locking part 75.

[0026] like Figure 3 As shown, during operation, the length of the drooping side of the bypass cable 10 should be longer to avoid the local bending radius being smaller than the minimum allowable curvature radius of the bypass cable due to the drooping force of the bypass cable 10; the clamp 7 is used to fix the bypass cable 10 to the bridge-type component 6 to prevent the bypass cable 10 from slipping off the bridge-type component 6 during lifting. After the bypass cable 10 is placed into the bridge-type component 6, the clamp 7 is closed, and the nut 83 is tightened to press the clamp 7, thereby securing the bypass cable 10; the clamp 7 is in the open state as follows. Figure 4 As shown, in this state, it is convenient to place the bypass cable 10 onto the bridge component 6; The insulating protective cylinder 9 provides insulation protection for the cable end, and the bypass cable 10 end can be quickly placed into the insulating protective cylinder 9 after the operation is completed. Figure 6 and Figure 7 As shown, the support base 91 is a circular mechanism; the snap-fit ​​assembly 92 includes multiple grooves 921 and protrusions 922 disposed on the inner wall of the support base 91, a spring lock 924 disposed on the protrusion 922, a protrusion 925 disposed on the outer wall of the insulating cylinder 93 that can pass through the grooves 921, a slot 926 disposed on the outer wall of the insulating cylinder 93 that can engage with the spring lock 924, and a limiting platform 927 disposed on the outer wall of the insulating cylinder 93. One end of the protrusion 922 is provided with a chamfer 923 to facilitate the protrusion 925 to snap into the top of the protrusion 922.

[0027] In the design of the spring lock 924, the frictional force provided by the spring between the spring lock 924 and the slot 926 determines the stability of the insulating cylinder 93 on the locking assembly 92 and the ease of disassembly of the insulating cylinder 93. Based on this, the size and performance of the spring are adjusted and optimized according to the frictional force between the spring lock 924 and the slot 926. The spring in the spring lock has been optimized so that the frictional force provided by the spring ensures connection stability while avoiding the problem of inconvenient disassembly of the insulating cylinder due to an overly rigid connection.

[0028] like Figure 5As shown, in this embodiment, an insulating protective cylinder 9 is provided on the crossbeam 4 to provide insulation protection for the end of the bypass cable 10. The insulating protective cylinder 9 includes a support base 91 set on the crossbeam 4 and an insulating cylinder 93 detachably set on the support base 91 via a snap-fit ​​assembly 92. After the operation is completed, the end of the bypass cable 10 is placed into the insulating protective cylinder 9 and discharged after reaching the ground. This solves the problems of complex wrapping process, incomplete wrapping, and easy falling off when wrapping the end of the bypass cable 10 with an insulating blanket, which improves the efficiency and safety of operation and avoids safety hazards. In addition, the insulating cylinder 93 can be flexibly removed from the support base 91, which improves flexibility and facilitates the replacement of the insulating cylinder 93.

[0029] Specifically, the upper structure of the insulating cylinder 93 can be screwed and fixed to the support base 91, or it can be quickly screwed off, facilitating installation and removal. This makes it convenient to operate the bypass cable 10 end during insulation and discharge tests, without requiring direct operation on the live bypass cable 10 end. During installation, the insulating cylinder 93 is aligned with the support base 91, and the protrusion 925 is inserted into the groove 921 of the support base 91. The insulating cylinder 93 is screwed on, causing the locking ball on the spring lock 924 to engage in the slot 926, thus fixing the insulating cylinder 93 circumferentially relative to the support base 91. Simultaneously, under the action of gravity, the insulating cylinder 93 falls, and the protrusion 925 is supported by the boss 922, achieving vertical fixation. The limiting platform 927 prevents the insulating cylinder 93 from rising above the support base 91. Disassembling the insulating cylinder 93 is the reverse operation of installation.

[0030] Example 2: This embodiment provides a method for operating a hoisting device for detachable bypass cables, using the hoisting device for detachable bypass cables as described in Embodiment 1, including: After fixing the bypass cable 1 to the bridge-type component 106, the insulating rope is used to lift the insulating rope lifting component to achieve vertical lifting of the bypass cable 10; after the operation is completed, the end of the bypass cable 10 is put into the insulating protective cylinder 9, and discharged after reaching the ground.

[0031] The above description is merely a preferred embodiment of this practice and is not intended to limit the scope of this practice. Various modifications and variations can be made to this practice by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this practice should be included within the protection scope of this practice.

Claims

1. A hoisting device for detachable bypass cables, characterized in that, It includes an insulating rope lifting device, an insulating rod connected to the insulating rope lifting device, a crossbeam connected to the insulating rod, a bridge-type component connected to the crossbeam, and an insulating protective cylinder provided on the crossbeam to provide insulation protection for the bypass cable end. The insulating protective cylinder includes a support base disposed on the crossbeam, and an insulating cylinder detachably disposed on the support base via a snap-fit ​​assembly.

2. The hoisting equipment for a detachable bypass cable as described in claim 1, characterized in that, A backup safety hook is provided on one end of the insulating rod near the lifting part of the insulating rope.

3. The hoisting equipment for a detachable bypass cable as described in claim 1, characterized in that, The insulating protective cylinder is disposed at one end of the crossbeam, and a support member is disposed at the end of the crossbeam away from the insulating protective cylinder.

4. The hoisting equipment for a detachable bypass cable as described in claim 3, characterized in that, The support component has a U-shaped structure.

5. The hoisting equipment for a detachable bypass cable as described in claim 1, characterized in that, The bridge-shaped component is equipped with a clamp and a locking assembly.

6. The hoisting device for a detachable bypass cable as described in claim 5, characterized in that, The clamp includes a connecting block disposed on the bridge-shaped component, and a clamping block rotatably disposed on the connecting block via a first pivot pin; the clamping block is provided with an arc-shaped portion and a locking portion.

7. The hoisting device for a detachable bypass cable as described in claim 6, characterized in that, The locking assembly includes a screw rotatably mounted on the bridge-shaped member via a second pin, and a nut mounted on the screw; the screw is adapted to the locking part.

8. The hoisting equipment for a detachable bypass cable as described in claim 1, characterized in that, The support base is a circular mechanism; the snap-fit ​​assembly includes multiple grooves and protrusions on the inner wall of the support base, a spring lock on the protrusion, a protrusion on the outer wall of the insulating cylinder that can pass through the groove, a slot on the outer wall of the insulating cylinder that can engage with the spring lock, and a limiting platform on the outer wall of the insulating cylinder.

9. The hoisting device for a detachable bypass cable as described in claim 7, characterized in that, One end of the boss is chamfered.

10. A method for operating a hoisting device for detachable bypass cables, characterized in that, The detachable bypass cable hoisting device as described in any one of claims 1-9 includes: After fixing the bypass cable to the bridge-type component, use the insulating rope to lift the insulating rope lifting component to achieve vertical lifting of the bypass cable; after the operation is completed, put the end of the bypass cable into the insulating protective cylinder, and discharge it after it reaches the ground.

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