A multi-adaptable overhead cable insulator replacement device

Abstract

The present invention belongs to the technical field related to cable insulators, and specifically discloses a multi-adaptive overhead cable line insulator replacement device, including a shell and a cable insulator body, the shell is provided with two groups, and the two ends of the interior of the two groups of shells are connected by correspondingly arranged locking pieces, the cable insulator body is located in the middle of the two groups of shells, and fixing columns are fixedly provided on both sides of the upper part of the shell, and arc-shaped frames are commonly provided on both sides of the exterior of the two fixing columns, and the two sides of the interior of the arc-shaped frame are obliquely connected to a clamping piece through an elastic component, and the outer sides of the two ends of the cable insulator body are symmetrically provided with clamping grooves, and the clamping piece is clamped in the clamping groove to fix the cable insulator body. The present invention realizes high adaptability, vibration resistance and active protection capability of the cable insulator.

Description

Technical Field

[0001] The invention belongs to the technical field related to cable insulators, and specifically discloses a multi-adaptable overhead cable line insulator replacement device. Background Art

[0002] Overhead transmission lines are the main carrier of electric energy transmission in power systems. They are widely used for long-distance and large-capacity power transmission due to their relatively low cost, short construction period, relatively easy maintenance, and ability to cross complex terrain.

[0003] Cable insulators are devices installed between conductors at different potentials or between conductors and ground potential components. They are able to withstand voltage and mechanical stress. To ensure the stability of overhead cables, cable insulators need to be stably installed.

[0004] The existing Chinese patent publication number is: CN210957731U discloses an electric power equipment, specifically a high-voltage cable insulator installation and fixing device with a simple structure and convenient insulator fixing. An upper connector is provided at the upper end of the insulator assembly, and a lower connector is provided at the lower end. The upper connector and the lower connector are respectively threadedly connected with a first locking device and a second locking device; the first locking device cooperates with the first cable, and the second locking device cooperates with the second cable; the first locking device and the second locking device have the same structure and size. The high-voltage cable insulator installation and fixing device of the utility model pre-connects the insulator assembly with the first locking device and the second locking device by rotating the insulator assembly, and then fixes the first locking device to the first cable and the second locking device to the second cable respectively, and finally rotates the insulator assembly to tighten with the first locking device and the second locking device, and achieves fixation while tightening, and has the characteristics of simple structure and convenient fixing and tightening.

[0005] Although the above patents can fix the cable insulators, when the cable insulator body is installed outside the transformer, it is easy to generate high-frequency vibration due to wind force and other reasons, which in turn causes cracks on the surface of the cable insulator body due to the traditional rigid connection structure and causes it to fall off. Therefore, a multi-adaptable overhead cable line insulator replacement device is proposed. Summary of the Invention

[0006] The purpose of the present invention is to solve the problems existing in the background technology, and a multi-adaptable overhead cable insulator replacement device is proposed, including a shell and a cable insulator body, the shell is provided with two groups, and the two ends of the interior of the two groups of shells are connected by corresponding locking parts, the cable insulator body is located in the middle of the two groups of shells, and fixing columns are fixed on both sides of the upper part of the shell, and arc-shaped frames are commonly provided on both sides of the outside of the two fixing columns. The two sides of the interior of the arc-shaped frame are obliquely connected to a clamping part through an elastic component provided, and the outer sides of the two ends of the cable insulator body are symmetrically provided with a clamping groove, and the clamping part is clamped in the clamping groove to fix the cable insulator body.

[0007] Preferably, the locking member includes a fastening screw respectively arranged at one end of the two groups of shells, and a sleeve is provided at the end of the two fastening screws at the same end that are close to each other. The ratchet outside the sleeve is connected to a fastening handle, and the fastening handle drives the sleeve to rotate to drive the fastening screws at both ends to extend and retract to both ends.

[0008] Preferably, the elastic component includes a U-shaped block arranged on one side of the inner part of the arc frame, a cylindrical shell is provided on the inner side of the U-shaped block, a spring is provided inside the cylindrical shell, a movable rod is slidably installed inside the cylindrical shell and close to one end of the spring, a rotating sleeve is provided on the end of the movable rod away from the spring, a rotating shaft is rotatably inserted inside the rotating sleeve, and a connecting block is provided outside the rotating shaft.

[0009] Preferably, a card shell is commonly provided on one side of the two groups of connecting blocks close to each other, a support frame is slidably installed inside the card shell, a card rod extends above the support frame, and a guide plate is fixedly provided above the outside of the card rod.

[0010] Preferably, a screw is threadedly connected to the rear end of the housing, and one end of the screw is rotatably connected to the outer wall of the frame.

[0011] Preferably, a water storage box is provided at one end of the clamping rod, a cushion box is provided above the water storage box, and the inner bottom of the cushion box is connected to the water storage box through a guide hole.

[0012] Preferably, an extension pipe is installed at the bottom of the inner side of the water storage box, a chamber is provided in the middle of the shell, and the drainage part of the extension pipe is located above the chamber.

[0013] Preferably, drainage holes are provided at the bottom of both ends of the inner side of the shell, the gasket box is made of rubber anti-corrosion material, and a diversion cavity is provided on the upper part of the gasket box.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] By connecting the fastening screw rods at both ends of the two sets of shells with the sleeve, the fastening handle drives the sleeve to rotate, and the ratchet mechanism is used to achieve bidirectional synchronous extension and retraction of the screw rod, thereby meeting the use of cable insulator strings of different lengths.

[0016] Through the elastic components set up, when the cable insulator body vibrates due to wind or other reasons, the card shell can convert the vibration energy into elastic potential energy through the movable rods, springs, cylindrical shells and rotating shafts set at an angle on both sides, consume the vibration force, and thus solve the loosening problem of the rigid connection of the traditional connecting bolts, ensuring that the card shell is more stable when installed on the outside of the cable insulator body.

[0017] The provided gasket box can be wrapped around the outside of the clamping structure, and a diversion cavity and a diversion hole are provided inside the gasket box. The accumulated water flows into the water storage box through the diversion hole, and is discharged into the cavity of the shell through the extension pipe, and finally discharged to the drainage holes at both ends of the shell. This can prevent the accumulated water from corroding conventional fastening metal parts such as the frame, and also reduce the problem of electrical performance degradation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the overall connection structure of the present invention from another angle;

[0020] Figure 3 This is a schematic diagram of the connection structure between the clamping groove, the abutment frame and the clamping shell of the present invention;

[0021] Figure 4 A schematic diagram showing the connection structure between the housing, the abutment frame and the connection block of the present invention from another angle;

[0022] Figure 5 This is a schematic diagram of the disassembled connection structure between the cushion box, water storage box, guide plate, and abutment frame of the present invention;

[0023] Figure 6 It is a structural schematic diagram of the inner chamber and drainage hole of the shell of the present invention.

[0024] In the figure: 1. Shell; 2. Cable insulator body; 3. Sleeve; 4. Fastening handle; 5. Fixing column; 6. Arc frame; 7. Water storage box; 8. Guide plate; 9. Fastening screw; 10. Screw; 11. Cylinder shell; 12. Pad box; 13. Abutment frame; 14. Cardan; 15. Connecting block; 16. Positioning groove; 17. Rotating sleeve; 18. Movable rod; 19. U-shaped block; 20. Diversion chamber; 21. Diversion hole; 22. Extension pipe; 23. Drain hole; 24. Chamber; 25. Rotating shaft; 26. Spring; 27. Cardan. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] like Figures 1-6 The multi-adaptive overhead cable insulator replacement device shown includes a shell 1 and a cable insulator body 2. The shell 1 is provided with two groups. The two ends of the two groups of shells 1 are connected by corresponding locking parts. The cable insulator body 2 is located in the middle of the two groups of shells 1. Fixed columns 5 are fixed on both sides of the upper part of the shell 1. The two fixed columns 5 are commonly provided with arc-shaped frames 6 on both sides of the outside. The two sides of the inside of the arc-shaped frame 6 are obliquely connected to the clamping parts through the elastic components provided. The outer sides of the two ends of the cable insulator body 2 are symmetrically provided with clamping grooves 16. The clamping parts are clamped inside the clamping grooves 16 to fix the cable insulator body 2.

[0028] The locking member includes a tightening screw 9 provided at one end of each of the two sets of housings 1. A sleeve 3 is provided at the end of the two tightening screws 9 at the same end that is close to each other. A tightening handle 4 is connected to the ratchet on the outside of the sleeve 3. The tightening handle 4 drives the sleeve 3 to rotate, driving the tightening screws 9 at both ends to extend and retract toward both ends.

[0029] The worker turns the tightening handle 4, which drives the sleeve 3 to rotate through the ratchet assembly inside it. The sleeve 3 drives the tightening screws 9 at both ends of the two groups of shells 1 to extend and retract synchronously, thereby realizing flexible adjustment of the distance between the two groups of shells 1 and adapting to cable insulator strings of different lengths.

[0030] It should be noted that the outer wall of the sleeve 3 is processed with ratchet teeth, and the tightening handle 4 is embedded with a pawl mechanism;

[0031] The elastic component includes a U-shaped block 19 arranged on one side of the inner part of the arc frame 6, a cylindrical shell 11 is provided on the inner side of the U-shaped block 19, a spring 26 is provided inside the cylindrical shell 11, a movable rod 18 is slidably installed on one end of the cylindrical shell 11 close to the spring 26, and a rotating sleeve 17 is provided on the end of the movable rod 18 away from the spring 26. A rotating shaft 25 is rotatably inserted into the rotating sleeve 17, and a connecting block 15 is provided on the outside of the rotating shaft 25. A card shell 14 is commonly provided on one side of the two groups of connecting blocks 15 close to each other, and a support frame 13 is slidably installed inside the card shell 14. A card rod 27 extends above the support frame 13, and a guide plate 8 is fixedly provided on the outside of the card rod 27;

[0032] One end of the movable rod 18 is inserted into the cylindrical shell 11 and abuts the spring 26, and the other end is hinged to the rotating sleeve 17. When the vibration force of the cable insulator main body 2 is transmitted to the abutment frame 13 and the card shell 14, the card shell 14 is pushed to slightly deflect. The movable rod 18 is compressed by the lateral force to the spring 26 inside the cylindrical shell 11. At the same time, the rotating shaft 25 deflects to release the lateral stress, and the vibration energy is absorbed by the spring 26, so that the abutment frame 13 and the card slot 16 avoid rigid collision, thereby ensuring the stability of the cable insulator main body 2 during card installation. The guide plate 8 protects the structure below the outside of the card shell 14.

[0033] The rear end of the housing 14 is threadedly connected to a screw rod 10, and one end of the screw rod 10 is rotatably connected to the outer wall of the support frame 13. The worker rotates the screw rod 10 to drive the support frame 13 to slide inside the housing 14 until the support frame 13 is tightly pressed against the outer surface of the positioning groove 16, thereby completing the fixation of the cable insulator body 2.

[0034] A water storage box 7 is provided at one end of the clamping rod 27, and a gasket box 12 is provided above the water storage box 7. The inner bottom of the gasket box 12 is connected to the water storage box 7 through a diversion hole 21. An extension pipe 22 is installed in communication with the inner bottom of the water storage box 7. A chamber 24 is provided in the middle of the shell 1. The drainage part of the extension pipe 22 is located above the chamber 24. Drain holes 23 are provided at the bottom of both ends of the inner side of the shell 1. The gasket box 12 is made of rubber anti-corrosion material, and a diversion cavity 20 is provided above the inner top of the gasket box 12.

[0035] Rainwater at the locking structure outside the cable insulator body 2 can be guided by the gasket box 12 to flow into the water storage box 7 through the diversion cavity 20 and then through the diversion hole 21. The accumulated water inside the water storage box 7 is discharged into the chamber 24 below through the extension tube 22. The chamber 24 can temporarily store rainwater and drain the rainwater through the drainage hole 23, so that the rainwater outside the cable insulator body 2 does not contact the metal parts at the locking groove 16, thereby avoiding corrosion of the metal parts.

[0036] Working principle: When in use, the sleeve 3 is driven to rotate by the tightening handle 4, and the left and right screw threads synchronously drive the tightening screw 9 to extend and retract, so as to realize the stepless adjustment of the distance between the two sets of shells 1 and adapt to different lengths of cable insulator strings;

[0037] The two fixing columns 5 and the arc-shaped frame 6 can be moved to the locking grooves 16 at both ends of the cable insulator body 2. The worker drives the support frame 13 into the locking groove 16 by rotating the screw 10 until the outer wall of the support frame 13 presses against the outer surface of the locking groove 16, completing the fixation of the cable insulator body 2;

[0038] When the external connection structure of the cable insulator body 2 vibrates, the vibration force can be transmitted to the cable insulator body 2, the support frame 13 and the card shell 14. For this reason, the movable rods 18 arranged obliquely on both sides of the card shell 14 will compress the springs 26 inside the corresponding cylindrical shell 11 according to the direction of the offset. At the same time, the movable rods 18 also swing along the outside of the rotating shaft 25 according to the vibration direction of the support frame 13 and the card shell 14, converting the vibration force into elastic deformation of the spring 26, realizing multi-directional buffering, which can solve the problem of traditional connectors being loosened due to rigid vibration, causing the cable insulator body 2 to fall off;

[0039] The provided pad box 12 can collect rainwater inside the diversion cavity 20 to the diversion hole 21, then flow into the water storage box 7, and then discharge into the chamber 24 of the shell 1 through the extension pipe 22, and finally discharge from the drainage holes 23 at both ends of the shell 1 to prevent accumulated water from corroding metal parts.

[0040] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the invention as claimed.

Claims

1. A multi-adaptable overhead cable insulator replacement device, comprising a housing (1) and a cable insulator body (2), characterized in that: The shell (1) is provided with two groups, and the two ends of the two groups of shells (1) are connected by corresponding locking members. The cable insulator body (2) is located in the middle of the two groups of shells (1). The upper sides of the shell (1) are fixed with fixed columns (5). The two sides of the outside of the two fixed columns (5) are jointly provided with an arc frame (6). The two sides of the inside of the arc frame (6) are tilted and jointly connected with a clamping member through an elastic component. The outer sides of the two ends of the cable insulator body (2) are symmetrically provided with a clamping groove (16). The clamping member is clamped in the clamping groove (16) to fix the cable insulator body (2). The elastic component includes a U-shaped block (19) provided on one side of the inside of the arc frame (6). The inner side of the U-shaped block (19) is provided with a cylindrical shell (11). The cylindrical shell ( 11) is provided with a spring (26) inside, a movable rod (18) is slidably installed inside the cylindrical shell (11) and at one end close to the spring (26), a rotating sleeve (17) is provided at one end of the movable rod (18) away from the spring (26), a rotating shaft (25) is rotatably inserted inside the rotating sleeve (17), a connecting block (15) is provided outside the rotating shaft (25), and a card shell (14) is commonly provided on one side close to each other of the two groups of connecting blocks (15), a support frame (13) is slidably installed inside the card shell (14), a card rod (27) extends above the support frame (13), a guide plate (8) is fixedly provided above the outside of the card rod (27), a screw rod (10) is threadedly connected to the rear end of the card shell (14), and one end of the screw rod (10) is rotatably connected to the outer wall of the support frame (13).

2. The multi-adaptable overhead cable insulator replacement device according to claim 1, characterized in that: The locking member comprises a tightening screw (9) respectively arranged at one end inside the two sets of housings (1); a sleeve (3) is provided at one end of the two tightening screws (9) at the same end close to each other; a tightening handle (4) is connected to the external ratchet of the sleeve (3); the tightening handle (4) drives the sleeve (3) to rotate and drives the tightening screws (9) at both ends to extend and retract toward both ends.

3. The multi-adaptable overhead cable insulator replacement device according to claim 1, characterized in that: A water storage box (7) is provided at one end of the clamping rod (27), a cushion box (12) is provided above the water storage box (7), and the inner bottom of the cushion box (12) is connected to the water storage box (7) via a guide hole (21) provided therein.

4. The multi-adaptable overhead cable insulator replacement device according to claim 3, characterized in that: An extension pipe (22) is installed in communication with the bottom of the inner side of the water storage box (7), a chamber (24) is provided in the middle of the shell (1), and a drainage point of the extension pipe (22) is located above the chamber (24).

5. The multi-adaptable overhead cable insulator replacement device according to claim 4, characterized in that: Drain holes (23) are provided at the bottom of both ends of the inner side of the shell (1), the gasket box (12) is made of rubber anti-corrosion material, and a guide cavity (20) is provided on the upper part of the gasket box (12).

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