A portable installation clamp and debugging method for a booster station isolating switch

Abstract

The present application belongs to the technical field of power equipment, and particularly relates to a portable installation clamp for disconnecting switch of a booster station and a debugging method. The present application comprises a base support module, an insulator module, a butt joint buffer module, a cable fixing module and a synchronous driving module. The present application respectively performs base support module installation and debugging, insulator module installation and debugging, butt joint clamp debugging, cable clamp debugging and synchronous driving module debugging. The present application solves the problem that under the action of external force such as earthquake, butt joint misalignment and arc melting occur easily, leading to electrical connection interruption and further causing power failure. The present application ensures the continuous and reliable electrical connection of the cable and the clamp, avoids loosening caused by direct connection of the cable, and thus solves the problem of insufficient influence on electrical connection stability. Through the synchronous driving module, the present application realizes the opening and closing of the disconnecting switch, and solves the problem that during opening and closing, each rotating disc moves out of synchronization, leading to disconnecting switch operation sticking and contact butt joint deviation.

Description

Technical Field

[0001] This invention belongs to the field of power equipment technology, specifically relating to a convenient installation fixture and debugging method for a step-up substation disconnect switch. Background Technology

[0002] As a crucial hub in the regional power grid, the 330kV substation undertakes the core tasks of medium- and high-voltage power transmission and voltage transformation. Its disconnecting switches, needing to adapt to the 330kV high voltage level, are characterized by larger size, higher current-carrying requirements for conductive components, and stricter installation precision standards. The corresponding disconnecting switch mounting fixtures, as key auxiliary components, must simultaneously meet the structural strength and electrical safety requirements under high-voltage scenarios. In the actual operation of the 330kV substation, due to the larger overall size and heavier components, external impacts such as earthquakes and strong winds have a more significant impact on the disconnecting switch mounting fixtures. These impacts are transmitted through the heavy components of the 330kV disconnecting switch to the mounting fixtures, posing a more severe challenge to their structural stability.

[0003] Existing docking clamps for 330kV disconnectors still largely use rigid docking designs for conventional voltage levels. These clamps directly connect adjacent docking arms using high-strength fasteners or bolts, lacking buffer and adjustment structures for 330kV scenarios. While these clamps can meet basic connection requirements during normal operation, they are more prone to concentrated stress deformation and damage under seismic swaying due to the greater mechanical force they must withstand. This can lead to misalignment of the two docking arms. At the high voltage level of 330kV, the gaps created by the misalignment of the docking arms can trigger stronger concentrated high-voltage arc discharges, causing the metal at the docking point to melt more quickly and potentially leading to more serious electrical faults due to arc propagation. Summary of the Invention

[0004] This invention provides a convenient installation fixture and debugging method for a step-up substation disconnect switch. Its purpose is to provide a solution to the problem that the two sides of the docking fixture are subjected to additional seismic mechanical forces, causing deformation and damage at the connection, resulting in misalignment of the two docking arms or melting of a single point by a high-voltage arc, or even disconnection of the electrical connection, causing a power outage.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A convenient installation clamp for a step-up substation disconnect switch includes: Basic support module; Insulator modules, multiple insulator modules are set up and vertically evenly arranged on the foundation support module; A docking buffer module is connected to the top of each insulator module; Cable fixing module, which is connected to the top of the insulator module; The synchronous drive module is connected to the basic support module and connects multiple insulator modules to achieve the opening and closing actions of the disconnecting switch.

[0006] The basic support module includes a bracket, connecting plates, support members, and connecting beams; the connecting plates are rectangular plates, and multiple plates are provided; multiple connecting plates are evenly fixedly connected to the top surface of the bracket; each connecting plate has a support member with a mounting hole on the top left and right sides of its top surface bolted together, and a connecting beam is detachably connected between the tops of two adjacent support members on each connecting plate; bearings are connected to the tops of both sides of the connecting beam, and the beam is connected to the insulator module through the bearings.

[0007] Each insulator module includes two insulators; the bottoms of the two insulators are respectively connected to a first rotating disk and a second rotating disk via flange bolts, and a linkage rod connects the first rotating disk and the second rotating disk; the first rotating disk and the second rotating disk are respectively connected to the base support module via bearings; the second rotating disks on all insulator modules are connected to each other via connecting rods; the second rotating disks are connected to a synchronous drive module; a connecting sleeve is threaded onto the top of each insulator; a cable fixing module is connected to the left and right connecting sleeves respectively, and a docking buffer module is connected between the left and right connecting sleeves.

[0008] The docking buffer module is a docking clamp; the docking clamp is installed between two adjacent connecting sleeves and fixed by welding or bolts to ensure that the adjacent connecting sleeves achieve mechanical and electrical connection; the docking clamp includes a second active docking arm, a second passive docking arm, a second docking groove, a second engaging component, and a second limiting component; one end of the second active docking arm is fixedly connected to the left connecting sleeve, and the other end has a second docking groove; one second engaging component is fixedly connected to the upper and lower sides of the inner wall of the second docking groove; one end of the second passive docking arm is fixedly connected to the right connecting sleeve, and one second limiting component is fixedly connected to the upper and lower sides of the other end.

[0009] The docking buffer module is a docking clamp; the docking clamp is installed between two adjacent connecting sleeves and fixed by welding or bolts to ensure that the adjacent connecting sleeves achieve mechanical and electrical connection; the docking clamp includes a first active docking arm, a first passive docking arm, a first docking groove, a first engaging component, a first limiting component, a sliding groove, a sliding column, and a spring; one end of the first passive docking arm is welded to the left connecting sleeve, and the other end has a first docking groove, with the first engaging component fixedly connected to the upper and lower sides of the groove's inner wall respectively; one end of the first active docking arm is fixedly connected to the right connecting sleeve, and the other end has a sliding groove, with a sliding column slidably connected in the sliding groove; a spring is sleeved on the surface of the sliding column, one end of the spring is fixedly connected to the bottom of the sliding groove, and the other end is fixedly connected to a step provided in the middle of the sliding column; the end of the sliding column away from the spring has a spherical structure, and during docking, the spherical end is inserted into the first docking groove, while the first limiting component on the side of the first active docking arm is in contact with the first engaging component.

[0010] The cable fixing module includes a sleeve, a connecting piece, fastening bolts, and a cable clamp; the sleeve is fixedly connected to the top of the insulator module, and a horizontally arranged connecting piece is fixedly connected to the outer wall of the sleeve; the surface of the connecting piece is threadedly connected to the cable clamp by the fastening bolts.

[0011] The cable clamp includes a first upper clamping block and a first lower clamping block of a cuboid mechanism; the first upper clamping block and the first lower clamping block are connected to the upper and lower parts of the connecting piece by fastening bolts; T-shaped grooves are provided on both sides of the top of the first lower clamping block, and the T-shaped grooves are parallel to the axis of the connecting piece; the bottom of the first upper clamping block is provided with a T-shaped slider that matches the T-shaped groove on the first lower clamping block, and the T-shaped slider of the first upper clamping block is slidably connected in the T-shaped groove of the first lower clamping block.

[0012] The cable clamp includes a second upper clamping block and a second lower clamping block of a cuboid mechanism; one end of the second upper clamping block and the second lower clamping block are detachably connected to the upper and lower parts of the connecting piece; a U-shaped placement groove is opened on the opposite side of the second lower clamping block and the second upper clamping block, and a pressing block is fixedly connected to the top of the inner wall of the placement groove of the second upper clamping block; a semi-circular threaded protrusion is welded on the outer wall of the other end of the second lower clamping block and the second upper clamping block, and the outer diameter of the two threaded protrusions is threaded to a nut pair.

[0013] The synchronous drive module includes a servo motor, a drive rod, a second connector, a connecting post, a first connector, and a connecting rod; the servo motor is detachably connected to the bottom of the connecting plate located in the middle of the basic support module; the output end of the servo motor is keyed to the connecting post; the top of the connecting post is fixedly connected to the second connector, and the second connector is rotatably connected to the drive rod on the insulator module.

[0014] A commissioning method for a convenient installation clamp for a step-up substation disconnect switch, comprising the following steps: Step 1: Installation and debugging of basic support modules; S1: Use hoisting equipment to hoist the bracket to the installation foundation surface of the disconnect switch of the booster station, use a level to calibrate the levelness of the bracket, adjust the position, and then fix the bracket to the foundation surface with expansion bolts; S2: Using the center point of the top of the bracket as a reference, mark the installation positions of multiple connecting plates, and detachably connect the connecting plates to the top of the bracket; align the bottom of the support with the pre-set screw holes of the connecting plate, insert the bolts and tighten them; S3: Align the two ends of the connecting beam with the mounting holes on the top of the adjacent support members and insert bolts to fix them; insert the first rotating disk and the second rotating disk into the bearings at the top of the connecting beam respectively, and after rotating to test that there is no jamming, apply grease to the bearings. Step 2: Installation and commissioning of the insulator modules; S1: Align the bolt holes of the bottom flange of the insulator in the insulator module with the mounting holes on the top of the first rotating disk and the second rotating disk, insert the high-strength bolts, and tighten them with a torque wrench; S2: Clean the top surface of the insulator, align the inner wall of the connecting sleeve with the top of the insulator, and slowly slide it into the preset position. Fix the connecting sleeve to the insulator with radial bolts, ensuring that the axis of the connecting sleeve coincides with the axis of the insulator. Step 3: Adjust the docking fixture; Push the adjacent connecting sleeve so that the end of the second driven docking arm aligns with the second docking groove of the second active docking arm. Continue to push the connecting sleeve slowly and observe whether the second limiting member is smoothly inserted into the second docking groove and whether the second locking member is locked in place. Pull the connecting sleeve to test for looseness, and the docking is complete. Alternatively, push the right connecting sleeve so that the spherical end of the sliding column of the first active docking arm contacts the first docking groove of the first driven docking arm. Continue to push until the first limiting member and the first locking member are in contact. Slightly shake the connecting sleeve left and right to test whether the sliding column can extend and retract with the shaking and whether the spherical end always stays in the first docking groove, and confirm that the docking is stable. Step 4: Cable clamp adjustment; S1: Unscrew the fastening bolts on the connecting piece and slide the first upper clamping block outward along the T-shaped slide groove to fully expose the empty groove at the top of the first lower clamping block; S2: Place the 330kV cable into the empty slot of the first lower clamping block and adjust the cable position to center it; S3: Slide the first upper clamping block back to its original position, ensuring that the clamping block completely covers the cable, insert the fastening bolt and tighten it, and pull the cable by hand to test for any displacement; or: S1: Unscrew the fastening bolts to separate the second upper clamping block from the second lower clamping block. Place the cable into the U-shaped placement groove of the second lower clamping block and adjust the cable routing to fit the groove wall. S2: Cover the second upper clamping block, insert the fastening bolt and pre-tighten it to ensure that the clamp does not loosen; S3: Use a wrench to rotate the nut assembly and observe whether the second upper clamping block moves down slowly until the pressing block fits against the outer wall of the cable; continue to rotate the nut assembly to the preset torque, lock the nut assembly, and complete the cable fixing; Step 5: Debugging the synchronous drive module; S1, Installation of linkage components; One end of the first connecting piece is connected to the second rotating disk via a pin, and the other end is fixed to the connecting rod via bolts; both ends of the linkage rod are connected to the adjacent second rotating disk and the first rotating disk via pins respectively; one end of the drive rod is connected to the middle second rotating disk via a pin, and the other end is welded to the second connecting piece; the second connecting piece is fixed to the connecting column via a key. S2, Action Coordination Verification; Manually push the connecting column to rotate around the servo motor output end and observe whether all the second rotating disks rotate synchronously and whether the first rotating disk moves synchronously with the second rotating disk, without jamming or misalignment. S3, Electric Adjustment; Apply 24V to the servo motor and control it to rotate forward and reverse 3 times each. Observe the coordination of the rotating disk, insulator, and connecting sleeve to ensure smooth opening and closing of the circuit breaker, and that the docking clamp does not come off or the cable does not shift.

[0015] Beneficial effects: 1. This invention provides a sliding groove in the first active docking arm, and a sliding column and a spring in the sliding groove. Under normal operation, the spring is in a released state. Under the additional mechanical force generated by an earthquake, the sliding column slides in the sliding groove as it shakes, while the spring continuously releases the compressed force, so that the spherical end always stays in the first docking groove. This avoids misalignment of the two docking arms due to deformation damage caused by stress at the docking point, and at the same time prevents the high-voltage arc from melting the docking part or disconnecting the electrical connection. This invention solves the problem that misalignment and arc melting can easily occur under the action of external forces such as earthquakes, leading to power outages.

[0016] 2. This invention uses the recessed slots on the lower and upper clamping blocks to form a loop-shaped structure for the cable, increasing the friction between the cable and the cable clamp. Even when the cable is subjected to vibration or temperature changes and undergoes slight displacement, the clamping blocks can still maintain the stability of clamping the cable, preventing cable displacement and ensuring the continuous and reliable electrical connection between the cable and the clamp. This avoids loosening caused by direct cable connection, thus solving the problem of insufficient stability affecting the electrical connection.

[0017] 3. This invention fixes the servo motor output end to the connecting column. When the servo motor is started, it drives the connecting column to rotate. The connecting column further drives the second connecting piece and the drive rod to move. The drive rod pulls the second rotating disk in the middle. At the same time, the first rotating disk is driven by the linkage rod, and the other second rotating disks are driven to move synchronously by the connecting rod and the first connecting piece. This makes the movement of each rotating disk and the matching insulator and connecting sleeve coordinated and consistent, so as to realize the opening and closing of the disconnecting switch. This solves the problem that the movement of each rotating disk is not synchronized during opening and closing, which leads to the disconnecting switch operation jamming and contact misalignment.

[0018] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a perspective view of the convenient installation clamp for the step-up station disconnect switch of the present invention.

[0021] Figure 2 This is a schematic diagram of the servo motor of the convenient installation fixture for the step-up station disconnect switch of the present invention.

[0022] Figure 3 This is a schematic diagram of the cable clamp and docking clamp of the convenient installation clamp for the step-up station disconnect switch of the present invention.

[0023] Figure 4 This is a schematic diagram of the first structure of the docking clamp in the convenient installation clamp for the booster station disconnector switch of the present invention.

[0024] Figure 5 for Figure 4 A schematic cross-sectional view of the first active docking arm.

[0025] Figure 6 This is a schematic diagram of the second structure of the docking clamp in the convenient installation clamp for the booster station disconnector of the present invention.

[0026] Figure 7 This is an exploded view of the first structure of the cable clamp in the convenient installation clamp for the step-up station disconnect switch of the present invention.

[0027] Figure 8This is a schematic diagram of the placement groove in the second structure of the cable clamp in the convenient installation clamp of the step-up station disconnect switch of the present invention.

[0028] Figure 9 This is a schematic diagram of the compression block in the second structure of the cable clamp in the convenient installation fixture for the step-up station disconnect switch of the present invention.

[0029] Figure 10 This is a schematic diagram of the first and second rotating disks in the convenient installation fixture for the step-up station disconnect switch of the present invention.

[0030] The components include: 1. Bracket; 2. Connecting plate; 3. Insulator; 4. Cable clamp; 401. Sleeve post; 402. Connecting piece; 403. Fastening bolt; 411. First upper clamping block; 412. First lower clamping block; 421. Second upper clamping block; 422. Second lower clamping block; 423. Placement slot; 424. Threaded protruding ring; 425. Nut pair; 426. Pressing block; 5. Butt clamp; 511. First driven butt arm; 512. First butt groove; 513. First engaging component; 514. First limiting component. 515. First active docking arm; 516. Sliding column; 517. Spring; 518. Sliding groove; 521. Second engaging component; 522. Second docking groove; 523. Second limiting component; 524. Second active docking arm; 525. Second driven docking arm; 6. Support component; 7. Servo motor; 8. Connecting beam; 9. First rotating disk; 10. Second rotating disk; 11. Connecting sleeve; 12. Linkage rod; 13. First connecting component; 14. Connecting rod; 15. Connecting column; 16. Second connecting component; 17. Drive rod. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1: according to Figures 1-10 As shown, a convenient installation clamp for a step-up substation disconnect switch includes: Basic support module; Insulator modules, multiple insulator modules are set up and vertically evenly arranged on the foundation support module; A docking buffer module is connected to the top of each insulator module; Cable fixing module, which is connected to the top of the insulator module; The synchronous drive module is connected to the basic support module and connects multiple insulator modules to achieve the opening and closing actions of the disconnecting switch.

[0033] The basic support module includes a bracket 1, a connecting plate 2, a support member 6, and a connecting beam 8. The connecting plate 2 is a rectangular plate, and multiple plates are provided. Multiple connecting plates 2 are evenly fixedly connected to the top surface of the bracket 1. Each connecting plate 2 has a support member 6 with a mounting hole on its top side fixed to each of the left and right sides of its top surface. A connecting beam 8 is detachably connected between the tops of two adjacent support members 6 on each connecting plate 2. Bearings are connected to the tops of both sides of the connecting beam 8, and the beams are connected to the insulator module.

[0034] In practical applications, bracket 1 is made of aluminum alloy and a shock-absorbing pad is added to the bottom; the connecting plate 2 is connected to bracket 1 by a spring washer.

[0035] The aluminum alloy bracket is 30% lighter, making it easier to hoist; shock-absorbing pads can help absorb some of the external impact, and spring washers prevent bolts from loosening due to long-term vibration; however, the load-bearing capacity of aluminum alloy is slightly lower than that of Q235 steel, making it suitable for scenarios with limited foundation load-bearing capacity. In some embodiments, each insulator module includes two insulators 3; the bottoms of the two insulators 3 are respectively connected to a first rotating disk 9 and a second rotating disk 10 via flange bolts, and a linkage rod 12 is connected between the first rotating disk 9 and the second rotating disk 10; the first rotating disk 9 and the second rotating disk 10 are respectively connected to the base support module via bearings; the second rotating disks 10 on all insulator modules are connected to each other via connecting rods 14; the second rotating disks 10 are connected to a synchronous drive module; a connecting sleeve 11 is threaded onto the top of each insulator 3; a cable fixing module is connected to the left and right connecting sleeves 11 respectively, and a docking buffer module is connected between the left and right connecting sleeves 11.

[0036] In some embodiments, the docking buffer module is a docking clamp 5 with rigid and precise docking function; the docking clamp 5 is installed between two adjacent connecting sleeves 11 and fixed by welding or bolts to ensure that the adjacent connecting sleeves 11 achieve mechanical and electrical connection; specifically, the docking clamp 5 includes a second active docking arm 525, a second driven docking arm 524, a second docking groove 522, a second engaging member 521, and a second limiting member 523; one end of the second active docking arm 525 is fixedly connected to the left connecting sleeve 11, and the other end has a second docking groove 522; one second engaging member 521 is fixedly connected to the upper and lower sides of the inner wall of the second docking groove 522; one end of the second driven docking arm 524 is fixedly connected to the right connecting sleeve 11, and one second limiting member 523 is fixedly connected to the upper and lower sides of the other end. During docking, push the right connecting sleeve 11 so that the end of the second driven docking arm 524 is inserted into the second docking groove 522. The second limiting member 523 squeezes the second engaging member 521 and embeds it into the groove until the second engaging member 521 springs back and locks the second limiting member 523, thus achieving rigid fixation.

[0037] The second limiting member 523 has a V-shaped groove structure, and the second engaging member 521 is a rectangular plate with V-shaped protrusions on its surface that match the V-shaped groove structure of the second limiting member 523. During docking, the right connecting sleeve 11 is pushed, causing the end of the second driven docking arm 524 to insert into the second docking groove 522. The second limiting member 523 presses against the second engaging member 521 and embeds it into the groove until the second engaging member 521 springs back and locks the second limiting member 523, achieving rigid fixation.

[0038] In some embodiments, the docking fixture 5 may be replaced by the following alternatives: The docking buffer module is a docking clamp 5 with flexible buffer docking function; the docking clamp 5 is installed between two adjacent connecting sleeves 11 and fixed by welding or bolts to ensure that the adjacent connecting sleeves 11 achieve mechanical and electrical connection; specifically, the docking clamp 5 includes a first active docking arm 515, a first driven docking arm 511, a first docking groove 512, a first engaging member 513, a first limiting member 514, a sliding groove 518, a sliding column 516, and a spring 517; one end of the first driven docking arm 511 is welded to the left connecting sleeve 11, and the other end has a first docking groove 512, with the upper and lower sides of the inner wall of the groove respectively fixed to the connecting sleeves 11. The first engaging member 513 is attached; one end of the first active docking arm 515 is fixedly connected to the right connecting sleeve 11, and the other end has a sliding groove 518, in which a sliding post 516 is slidably connected; a spring 517 is fitted on the surface of the sliding post 516, one end of the spring 517 is fixedly connected to the bottom of the sliding groove 518, and the other end is fixedly connected to a step provided in the middle of the sliding post 516; the end of the sliding post 516 away from the spring 517 has a spherical structure, which is inserted into the first docking groove 512 during docking, and at the same time, the first limiting member 514 on the side of the first active docking arm 515 is in contact with the first engaging member 513. When an external force impacts, the sliding post 516 can slide along the sliding groove 518, and the spring 517 is compressed or extended, continuously releasing elastic force to keep the spherical end always in contact with the inner wall of the first docking groove 512, offsetting the impact and maintaining docking stability.

[0039] This invention provides a sliding groove 518 in the first active docking arm 515, and a sliding column 516 and a spring 517 in the sliding groove 518. Under normal operation, the spring 517 is in a released state. Under the additional mechanical force generated by an earthquake, the sliding column 516 slides in the sliding groove 518 as it shakes, while the spring 517 continuously releases the compressed force, so that the spherical end is always in the first docking groove 512. This avoids misalignment of the two docking arms due to deformation damage at the docking point caused by the force, and at the same time prevents the high-voltage arc from melting the docking part or disconnecting the electrical connection. This solves the problem that misalignment and arc melting can easily occur under the action of external forces such as earthquakes, leading to power outages.

[0040] In specific applications, the docking fixture 5 can adopt the following alternative: the spherical end of the sliding column 516 is replaced with a hemispherical protrusion, and a matching hemispherical groove is opened on the inner wall of the first docking groove 512; the spring 517 is replaced with a disc spring, which is installed between the bottom of the sliding groove 518 and the sliding column 516.

[0041] The combination of the hemispherical structure and the groove can further limit the radial displacement of the docking arm. The fatigue resistance of the disc spring is better than that of ordinary springs, making it suitable for 330kV booster stations in earthquake-prone areas. However, the structural processing precision requirements are higher, and the cost increases slightly.

[0042] In some embodiments, the cable fixing module includes a sleeve post 401, a connecting piece 402, a fastening bolt 403, and a cable clamp 4; the sleeve post 401 is fixedly connected to the top of the insulator module, and a horizontally arranged connecting piece 402 is fixedly connected to the outer wall of the sleeve post 401; the cable clamp 4 is threadedly connected to the surface of the connecting piece 402 by the fastening bolt 403.

[0043] Furthermore, the cable clamp 4 has a sliding clamping function, specifically including a first upper clamping block 411 and a first lower clamping block 412 of a cuboid mechanism; the first upper clamping block 411 and the first lower clamping block 412 are connected to the upper and lower parts of the connecting piece 402 by fastening bolts 403; T-shaped sliding grooves are provided on both sides of the top of the first lower clamping block 412, and the T-shaped sliding grooves are parallel to the axis of the connecting piece 402; the bottom of the first upper clamping block 411 is provided with a T-shaped slider that matches the T-shaped sliding groove on the first lower clamping block 412, and the T-shaped slider of the first upper clamping block 411 is slidably connected in the T-shaped sliding groove of the first lower clamping block 412.

[0044] In practical applications, the fastening bolt 403 passes sequentially through the first upper clamping block 411, the connecting piece 402, and the first lower clamping block 412, and is threadedly connected to all three. When installing the cable, unscrew the fastening bolt 403, slide the first upper clamping block 411 to separate it from the first lower clamping block 412, insert the cable, reset the clamping blocks, and tighten the fastening bolt 403 to secure it.

[0045] In some embodiments, the cable clamp 4 may be replaced by the following alternatives: The cable clamp 4 has a U-shaped groove and a pressing and fixing function. Specifically, it includes a second upper clamping block 421 and a second lower clamping block 422 of a cuboid mechanism. One end of the second upper clamping block 421 and the second lower clamping block 422 is detachably connected to the upper and lower parts of the connecting piece 402. A U-shaped placement groove 423 is opened on the opposite side of the second lower clamping block 422 and the second upper clamping block 421. A pressing block 426 is fixedly connected to the top of the inner wall of the placement groove 423 of the second upper clamping block 421. A semi-circular threaded protrusion ring 424 is welded to the outer wall of the other end of the second lower clamping block 422 and the second upper clamping block 421. The outer diameters of the two threaded protrusion rings 424 are threaded together to a nut pair 425.

[0046] In practical applications, a 5mm thick rubber extrusion block 426 is bonded or welded to the top of the inner wall of the top placement groove 423; a threaded protrusion ring 424 with M20 threads is welded to the right side of the second lower clamping block 422 and the second upper clamping block 421; the two threaded protrusion rings 424 are connected to a nut pair 425 with a common thread on their outer diameter; the fastening bolt 403 passes through the second upper clamping block 421, the connecting piece 402, and the second lower clamping block 422 in sequence to pre-tighten and fix the position of the clamp. The cable is placed into the U-shaped placement groove 423, and the nut pair 425 is rotated to drive the second upper clamping block 421 to move downward, so that the extrusion block 426 fits against the outer wall of the cable, and the nut pair 425 is locked to complete the double fixation.

[0047] The cable clamp 4 in this embodiment can be replaced by the following alternatives: the U-shaped placement groove 423 is replaced with a V-shaped groove, the compression block 426 is replaced with a replaceable silicone pad, and the threaded protrusion ring 424 and nut pair 425 are replaced with a snap-fit ​​structure.

[0048] The V-groove and replaceable silicone pads improve cable compatibility, and the snap-fit ​​structure allows for faster installation; however, the long-term stability of the snap-fit ​​is slightly inferior to that of the threaded lock, making it suitable for scenarios with varying cable diameters and high installation efficiency requirements.

[0049] In some embodiments, the synchronous drive module includes a servo motor 7, a drive rod 17, a second connector 16, a connecting post 15, a first connector 13, and a connecting rod 14; the servo motor 7 is detachably connected to the bottom of the connecting plate 2 located in the middle of the base support module; the output end of the servo motor 7 is keyed to the connecting post 15; the top end of the connecting post 15 is fixedly connected to the second connector 16, and the second connector 16 is rotatably connected to the drive rod 17 on the insulator module.

[0050] In actual use, the servo motor 7 is started, and its output end drives the connecting column 15 to rotate around the axis; the connecting column 15 drives the second connecting piece 16 to swing, the second connecting piece 16 pulls the drive rod 17, and the drive rod 17 pushes the middle second rotating disk 10 to rotate around the top bearing of the connecting beam 8; the middle second rotating disk 10 drives the connecting rod 14 to move through the first connecting piece 13, and the connecting rod 14 pulls all the second rotating disks 10 to rotate synchronously through other first connecting pieces 13; when the second rotating disk 10 rotates, it drives the adjacent first rotating disk 9 to rotate synchronously through the linkage rod 12; the rotating disk drives the top insulator 3 and the connecting sleeve 11 to rotate, realizing the opening and closing action of the disconnecting switch, and all components move in a coordinated manner.

[0051] In practical applications, the servo motor 7 can be replaced with a stepper motor, and the connecting column 15 and the drive rod 17 can be connected by gear transmission; a position sensor can be added to monitor the angle position of the rotating disk in real time.

[0052] Stepper motors and gear drives can achieve precise control of rotation angle, and position sensors can provide feedback on the action status, improving the level of automation; however, the cost increases by 50%, and additional control circuitry is required, making them suitable for booster stations with high requirements for intelligence.

[0053] Example 2: Reference Figures 1-10 A method for debugging a convenient installation clamp for a step-up substation disconnect switch, comprising the following steps: Step 1: Installation and debugging of basic support modules; S1: Use hoisting equipment to hoist bracket 1 to the installation foundation of the disconnect switch of the booster station, use a level to calibrate the levelness of bracket 1, adjust the position and then fix bracket 1 to the foundation surface with expansion bolts; S2: Using the center point of the top of the bracket 1 as a reference, mark the installation positions of multiple connecting plates 2 (three connecting plates are provided in this embodiment), and detachably connect the connecting plates 2 to the top of the bracket 1; align the bottom of the support 6 with the preset screw holes of the connecting plate 2, insert the bolts and tighten them; S3: Align the two ends of the connecting beam 8 with the mounting holes on the top of the adjacent support 6 and insert bolts to fix them; insert the first rotating disk 9 and the second rotating disk 10 into the bearings at the top of the connecting beam 8 respectively, and after rotating to test that there is no jamming, apply grease to the bearings. Step 2: Installation and commissioning of the insulator modules; S1: Align the bolt holes of the bottom flange of insulator 3 in the insulator module with the mounting holes on the top of the first rotating disk 9 and the second rotating disk 10, insert the high-strength bolts, and tighten them with a torque wrench; S2: Clean the top surface of the insulator 3, align the inner wall of the connecting sleeve 11 with the top of the insulator 3, and slowly put it on to the preset position. Fix the connecting sleeve 11 to the insulator 3 with the radial bolts to ensure that the axis of the connecting sleeve 11 coincides with the axis of the insulator 3. Step 3: Adjustment of docking fixture 5; Push the adjacent connecting sleeve 11 so that the end of the second driven docking arm 524 aligns with the second docking groove 522 of the second active docking arm 525. Continue to push the connecting sleeve 11 slowly and observe whether the second limiting member 523 is smoothly inserted into the second docking groove 522. The second engaging member 521 locks the second limiting member 523. Pull the connecting sleeve 11 to test for looseness, and the docking is completed. Alternatively, push the right connecting sleeve 11 so that the spherical end of the sliding column 516 of the first active docking arm 515 contacts the first docking groove 512 of the first driven docking arm 511. Continue to push until the first limiting member 514 and the first engaging member 513 are in contact. Slightly shake the connecting sleeve 11 left and right to test whether the sliding column 516 can extend and retract with the shaking, and whether the spherical end always does not leave the first docking groove 512, and confirm that the docking is stable. Step 4: Cable clamp 4 adjustment; S1: Unscrew the fastening bolt 403 on the connecting piece 402, slide the first upper clamping block 411 outward along the T-shaped slide groove, so that the empty groove at the top of the first lower clamping block 412 is fully exposed; S2: Place the 330kV cable into the empty slot of the first lower clamping block 412 and adjust the cable position to center it; S3: Slide the first upper clamping block 411 back to its original position, ensuring that the clamping block completely covers the cable, insert the fastening bolt 403 and tighten it, and pull the cable by hand to test for no displacement; or: S1: Unscrew the fastening bolt 403, separate the second upper clamping block 421 from the second lower clamping block 422, put the cable into the U-shaped placement groove 423 of the second lower clamping block 422, and adjust the cable route to fit the groove wall. S2: Cover the second upper clamping block 421, insert the fastening bolt 403 and pre-tighten it to ensure that the clamp is not loose; S3: Use a wrench to rotate the nut assembly 425 and observe whether the second upper clamping block 421 moves down slowly until the pressing block 426 fits against the outer wall of the cable; continue to rotate the nut assembly 425 to the preset torque, lock the nut assembly 425, and complete the cable fixing; Step 5: Debugging the synchronous drive module; S1, Installation of linkage components; One end of the first connecting piece 13 is connected to the second rotating disk 10 via a pin, and the other end is fixed to the connecting rod 14 via bolts; both ends of the linkage rod 12 are connected to the adjacent second rotating disk 10 and the first rotating disk 9 via pins respectively; one end of the drive rod 17 is connected to the middle second rotating disk 10 via a pin, and the other end is welded to the second connecting piece 16; the second connecting piece 16 is fixed to the connecting post 15 via a key; S2, Action Coordination Verification; Manually push the connecting column 15 to rotate around the output end of the servo motor 7, and observe whether all the second rotating disks 10 rotate synchronously, and whether the first rotating disk 9 moves synchronously with the second rotating disks 10, without jamming or misalignment. S3, Electric Adjustment; Apply 24V voltage to the servo motor 7 and control the servo motor 7 to rotate forward and reverse 3 times each. Observe the coordination of the second rotating disk 10, the first rotating disk 9, the insulator 3, and the connecting sleeve 11 with the naked eye or a camera to ensure that the opening and closing actions are smooth, the docking clamps do not come off, and the cables do not shift.

[0054] This invention addresses the shortcomings of electrical connection interruptions caused by misalignment and arcing under external forces such as earthquakes, which can lead to power outages. By using the recessed slots 423 on the lower and upper clamping blocks, the cable forms a loop structure, increasing friction between the cable and the clamp. Even when the cable experiences minor displacement due to vibration or temperature changes, the clamping blocks maintain stable clamping, preventing cable displacement and ensuring a continuous and reliable electrical connection between the cable and the clamp. This avoids loosening caused by direct cable connection, thus solving the problem of insufficient electrical connection stability. This invention fixes the output end of the servo motor 7 to the connecting post 15. When the servo motor 7 is activated, it drives the connecting post 15 to rotate. The connecting post 15 further drives the second connecting piece 16 and the drive rod 17 to move. The drive rod 17 pulls the middle second rotating disk 10. At the same time, the linkage rod 12 drives the first rotating disk 9, and the connecting rod 14 and the first connecting piece 13 drive the other second rotating disks 10 to move synchronously. This makes the movement of each rotating disk and the matching insulator 3 and connecting sleeve 11 coordinated and consistent, realizing the opening and closing of the disconnecting switch. This solves the problem that the movement of each rotating disk is not synchronized during opening and closing, which leads to jamming of the disconnecting switch operation and contact misalignment.

[0055] Where there is no conflict, those skilled in the art can combine the relevant technical features in the above examples according to the actual situation to achieve the corresponding technical effects. Specific details of the various combinations will not be elaborated here.

[0056] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0057] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0058] The above description is merely a preferred embodiment of the present invention. The present invention is not limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. Any simple modifications, equivalent variations, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the present invention.

Claims

1. A convenient installation clamp for a step-up substation disconnect switch, characterized in that: include, Basic support module; Insulator modules, multiple insulator modules are set up and vertically evenly arranged on the foundation support module; A docking buffer module is connected to the top of each insulator module; Cable fixing module, which is connected to the top of the insulator module; The synchronous drive module is connected to the basic support module and connects multiple insulator modules to achieve the opening and closing actions of the disconnecting switch.

2. The convenient installation clamp for a step-up substation disconnect switch as described in claim 1, characterized in that: The basic support module includes a bracket (1), a connecting plate (2), a support member (6), and a connecting beam (8); the connecting plate (2) is a rectangular plate with multiple blocks; multiple connecting plates (2) are evenly fixedly connected to the top surface of the bracket (1); each connecting plate (2) has a support member (6) with a mounting hole on the top side fixed by bolts on the left and right sides of the top surface of each connecting plate (2), and a connecting beam (8) is detachably connected between the tops of two adjacent support members (6) on each connecting plate (2); the tops of the two sides of the connecting beam (8) are respectively connected to bearings, which are connected to the insulator module through the bearings.

3. A convenient installation clamp for a step-up substation disconnector as described in claim 1 or 2, characterized in that: Each insulator module includes two insulators (3); the bottom of the two insulators (3) is connected to a first rotating disk (9) and a second rotating disk (10) respectively by flange bolts, and a linkage rod (12) is connected between the first rotating disk (9) and the second rotating disk (10); the first rotating disk (9) and the second rotating disk (10) are respectively connected to the base support module by bearings; the second rotating disks (10) on all insulator modules are connected by connecting rods (14); the second rotating disks (10) are connected to the synchronous drive module; a connecting sleeve (11) is threaded onto the top of each insulator (3); a cable fixing module is connected to the left and right connecting sleeves (11) respectively, and a docking buffer module is connected between the left and right connecting sleeves (11).

4. The convenient installation clamp for a step-up substation disconnect switch as described in claim 3, characterized in that: The docking buffer module is a docking clamp (5); the docking clamp (5) is installed between two adjacent connecting sleeves (11) and fixed by welding or bolts to ensure that the adjacent connecting sleeves (11) achieve mechanical and electrical connection; the docking clamp (5) includes a second active docking arm (525), a second passive docking arm (524), a second docking groove (522), a second engaging member (521), and a second limiting member (523); one end of the second active docking arm (525) is fixedly connected to the left connecting sleeve (11), and the other end has a second docking groove (522); a second engaging member (521) is fixedly connected to the upper and lower sides of the inner wall of the second docking groove (522); one end of the second passive docking arm (524) is fixedly connected to the right connecting sleeve (11), and a second limiting member (523) is fixedly connected to the upper and lower sides of the other end.

5. A convenient installation clamp for a step-up substation disconnect switch as described in claim 3, characterized in that: The docking buffer module is a docking clamp (5); the docking clamp (5) is installed between two adjacent connecting sleeves (11) and fixed by welding or bolts to ensure that the adjacent connecting sleeves (11) achieve mechanical and electrical connection; the docking clamp (5) includes a first active docking arm (515), a first passive docking arm (511), a first docking groove (512), a first locking member (513), a first limiting member (514), a sliding groove (518), a sliding column (516), and a spring (517); one end of the first passive docking arm (511) is welded to the left connecting sleeve (11), and the other end is provided with a first docking groove (512), and the upper and lower sides of the inner wall of the groove are respectively fixedly connected to the first locking member (512). 513); One end of the first active docking arm (515) is fixedly connected to the right connecting sleeve (11), and the other end is provided with a sliding groove (518). A sliding column (516) is slidably connected in the sliding groove (518); a spring (517) is sleeved on the surface of the sliding column (516). One end of the spring (517) is fixedly connected to the bottom of the sliding groove (518), and the other end is fixedly connected to the step provided in the middle of the sliding column (516); a spherical structure is provided at the end of the sliding column (516) away from the spring (517). When docking, the spherical end is inserted into the first docking groove (512), and at the same time, the first limiting member (514) on the side of the first active docking arm (515) is in contact with the first engaging member (513).

6. A convenient installation clamp for a step-up substation disconnector as described in claim 1 or 2, characterized in that: The cable fixing module includes a sleeve post (401), a connecting piece (402), a fastening bolt (403), and a cable clamp (4); the sleeve post (401) is fixedly connected to the top of the insulator module, and a horizontally arranged connecting piece (402) is fixedly connected to the outer wall of the sleeve post (401); the cable clamp (4) is threadedly connected to the surface of the connecting piece (402) by the fastening bolt (403).

7. A convenient installation clamp for a step-up substation disconnect switch as described in claim 6, characterized in that: The cable clamp (4) includes a first upper clamping block (411) and a first lower clamping block (412) of a cuboid mechanism; the first upper clamping block (411) and the first lower clamping block (412) are connected to the upper and lower parts of the connecting piece (402) by fastening bolts (403); T-shaped grooves are provided on both sides of the top of the first lower clamping block (412), and the T-shaped grooves are parallel to the axis of the connecting piece (402); the bottom of the first upper clamping block (411) is provided with a T-shaped slider that matches the T-shaped groove on the first lower clamping block (412), and the T-shaped slider of the first upper clamping block (411) is slidably connected in the T-shaped groove of the first lower clamping block (412).

8. A convenient installation clamp for a step-up substation disconnect switch as described in claim 6, characterized in that: The cable clamp (4) includes a second upper clamping block (421) and a second lower clamping block (422) of a cuboid mechanism; one end of the second upper clamping block (421) and the second lower clamping block (422) is detachably connected to the upper and lower parts of the connecting piece (402); a U-shaped placement groove (423) is provided on the opposite side of the second lower clamping block (422) and the second upper clamping block (421); a pressing block (426) is fixedly connected to the top of the inner wall of the placement groove (423) of the second upper clamping block (421); a semi-circular threaded protrusion ring (424) is welded to the outer side wall of the other end of the second lower clamping block (422) and the second upper clamping block (421), and the outer diameters of the two threaded protrusion rings (424) are threadedly connected to a nut pair (425).

9. A convenient installation clamp for a step-up substation disconnector as described in claim 1 or 2, characterized in that: The synchronous drive module includes a servo motor (7), a drive rod (17), a second connector (16), a connecting post (15), a first connector (13), and a connecting rod (14); the servo motor (7) is detachably connected to the bottom of the connecting plate (2) located in the middle of the base support module; the output end of the servo motor (7) is keyed to the connecting post (15); the top of the connecting post (15) is fixedly connected to the second connector (16), and the second connector (16) is rotatably connected to the drive rod (17) on the insulator module.

10. A method for debugging a convenient installation clamp for a step-up substation disconnector, characterized in that: The convenient installation fixture for a step-up substation disconnect switch as described in any one of claims 1-9 includes the following steps: Step 1: Installation and debugging of basic support modules; S1: Use hoisting equipment to hoist the bracket (1) to the installation foundation of the disconnect switch of the booster station, use a level to calibrate the levelness of the bracket (1), adjust the position and then fix the bracket (1) to the foundation surface with expansion bolts; S2: Using the center point of the top of the bracket (1) as a reference, mark the installation positions of multiple connecting plates (2), and detachably connect the connecting plates (2) to the top of the bracket (1); align the bottom of the support (6) with the pre-set screw holes of the connecting plate (2), insert the bolts and tighten them; S3: Align the two ends of the connecting beam (8) with the mounting holes on the top of the adjacent support (6) and insert bolts to fix them; insert the first rotating disk (9) and the second rotating disk (10) into the bearings at the top two ends of the connecting beam (8) respectively, and after rotating to test that there is no jamming, apply grease to the bearings; Step 2: Installation and commissioning of the insulator modules; S1: Align the bolt holes of the bottom flange of the insulator (3) in the insulator module with the mounting holes on the top of the first rotating disk (9) and the second rotating disk (10), insert the high-strength bolts, and tighten them with a torque wrench; S2: Clean the top surface of the insulator (3), align the inner wall of the connecting sleeve (11) with the top of the insulator (3), slowly put it on to the preset position, and fix the connecting sleeve (11) and the insulator (3) with radial bolts to ensure that the axis of the connecting sleeve (11) coincides with the axis of the insulator (3); Step 3: Adjustment of the docking fixture (5); Push the adjacent connecting sleeve (11) so that the end of the second driven docking arm (524) is aligned with the second docking groove (522) of the second active docking arm (525). Continue to push the connecting sleeve (11) slowly and observe whether the second limiting member (523) is smoothly inserted into the second docking groove (522). The second locking member (521) locks the second limiting member (523). Pull the connecting sleeve (11) to test for looseness and complete the docking. Or push the right connecting sleeve (11) so that the spherical end of the sliding column (516) of the first active docking arm (515) contacts the first docking groove (512) of the first driven docking arm (511). Continue to push until the first limiting member (514) and the first locking member (513) are in contact. Slightly shake the connecting sleeve (11) left and right to test whether the sliding column (516) can extend and retract with the shaking and whether the spherical end always does not leave the first docking groove (512) to confirm that the docking is stable. Step 4: Cable clamp (4) adjustment; S1: Unscrew the fastening bolt (403) on the connecting piece (402), slide the first upper clamping block (411) outward along the T-shaped slide groove, so that the empty groove at the top of the first lower clamping block (412) is fully exposed; S2: Place the 330kV cable into the empty slot of the first lower clamping block (412) and adjust the cable position to center it; S3: Slide the first upper clamping block (411) back to its original position, ensuring that the clamping block completely covers the cable, insert the fastening bolt (403) and tighten it, and pull the cable by hand to test for no displacement; or: S1: Unscrew the fastening bolt (403), separate the second upper clamping block (421) from the second lower clamping block (422), put the cable into the U-shaped placement groove (423) of the second lower clamping block (422), and adjust the cable route to fit the groove wall; S2: Cover the second upper clamping block (421), insert the fastening bolt (403) and pre-tighten it to ensure that the clamp does not loosen; S3: Use a wrench to rotate the nut assembly (425) and observe whether the second upper clamping block (421) moves down slowly until the pressing block (426) fits against the outer wall of the cable; continue to rotate the nut assembly (425) to the preset torque, lock the nut assembly (425), and complete the cable fixing; Step 5: Debugging the synchronous drive module; S1, Installation of linkage components; One end of the first connecting piece (13) is connected to the second rotating disk (10) by a pin, and the other end is fixed to the connecting rod (14) by a bolt; the two ends of the linkage rod (12) are connected to the adjacent second rotating disk (10) and the first rotating disk (9) by pins respectively; one end of the drive rod (17) is connected to the middle second rotating disk (10) by a pin, and the other end is welded to the second connecting piece (16); the second connecting piece (16) is fixed to the connecting column (15) by a key; S2, Action Coordination Verification; Manually push the connecting column (15) to rotate around the output end of the servo motor (7), and observe whether all the second rotating disks (10) rotate synchronously, and whether the first rotating disk (9) moves synchronously with the second rotating disks (10), without jamming or misalignment; S3, Electric Adjustment; Apply 24V voltage to the servo motor (7), control the servo motor (7) to rotate forward and reverse 3 times each, observe the coordination of the rotating disk, insulator and connecting sleeve, and ensure that the opening and closing actions are smooth, the docking clamp does not come off and the cable does not shift.

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