Multi-adaptive aerial cable insulator reloading device

Abstract

The invention belongs to the related technical field of cable insulators, and particularly discloses a multi-adaptation aerial cable insulator reloading device which comprises two sets of shells and a cable insulator body, the two ends of the interiors of the two sets of shells are connected through correspondingly-arranged locking pieces, and the cable insulator body is connected with the two sets of shells. The cable insulator main body is located in the middle of the interiors of the two sets of shells, fixing columns are fixedly arranged on the two sides of the upper portions of the shells, arc-shaped frames are jointly arranged on the two sides of the exteriors of the two fixing columns, and the two sides of the interiors of the arc-shaped frames are jointly connected with clamping pieces through arranged elastic assemblies in an inclined mode. Clamping grooves are symmetrically formed in the outer sides of the two ends of the cable insulator body respectively, the clamping pieces are clamped in the clamping grooves to fix the cable insulator body, and high adaptability, vibration resistance durability and active protection capacity of the cable insulator are achieved.

Description

Technical Field

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

[0002] Overhead transmission lines are the main carriers for power transmission in the power system. Due to their advantages such as relatively low cost, short construction period, relatively convenient maintenance, and easy crossing of complex terrains, they are widely used in long-distance and large-capacity power transmission; A cable insulator is a device installed between conductors at different potentials or between a conductor and a ground potential component, which can withstand voltage and mechanical stress. To ensure the stability of the overhead cable, the cable insulator needs to be stably installed; The existing Chinese patent publication number: CN210957731U discloses a power device, specifically a high-voltage cable insulator installation and fixing device with a simple structure and convenient for fixing insulators. 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 structures and dimensions of the first locking device and the second locking device are the same. The high-voltage cable insulator installation and fixing device of the present invention pre-connects the insulator assembly with the first locking device and the second locking device by rotating the insulator assembly, then fixes the first locking device with the first cable and the second locking device with the second cable respectively, and finally rotates the insulator assembly to tighten it with the first locking device and the second locking device, achieving fixation while tightening, and having the characteristics of simple structure and convenient fixing and tightening.

[0003] Although the above patent can fix the cable insulator, when the cable insulator body is erected outside the transformer, it is prone to high-frequency vibration due to reasons such as wind force, which may cause cracks on the surface of the cable insulator body due to the traditional rigid connection structure and result in a falling-off phenomenon. Therefore, a multi-adaptive replacement device for overhead cable insulators is proposed. Summary of the Invention

[0004] The object of the present invention is to solve the problems existing in the background technology, and a multi-adaptive overhead cable insulator replacement device is proposed, including a housing and a cable insulator body. There are two groups of the housings, and the two ends inside the two groups of housings are connected by corresponding locking members. The cable insulator body is located in the middle of the two groups of housings. On both sides above the housing, fixing columns are fixedly arranged. On both sides of the two fixing columns, an arc-shaped frame is jointly arranged. On both sides inside the arc-shaped frame, a clamping member is jointly connected by an inclined elastic component. On the outer sides of both ends of the cable insulator body, clamping grooves are symmetrically opened respectively. The clamping member is clamped inside the clamping groove to fix the cable insulator body.

[0005] Preferably, the locking member includes fastening screws respectively arranged at one end inside the two groups of housings. At one end where the two fastening screws at the same end are close to each other, a sleeve is arranged. A fastening handle is ratchet-connected to the outside of the sleeve. The fastening handle drives the sleeve to rotate to drive the two fastening screws at both ends to extend and contract.

[0006] Preferably, the elastic component includes a U-shaped block arranged on one side inside the arc-shaped frame. Inside the U-shaped block, a cylindrical shell is arranged. A spring is arranged inside the cylindrical shell. A movable rod is slidably installed inside the cylindrical shell and close to one end of the spring. At one end of the movable rod away from the spring, a rotating sleeve is arranged. A rotating shaft is rotatably inserted inside the rotating sleeve. A connecting block is arranged on the outside of the rotating shaft.

[0007] Preferably, on one side where the two connecting blocks are close to each other, a clamping shell is jointly arranged. An abutting frame is slidably installed inside the clamping shell. Above the abutting frame, a clamping rod extends out. Above the outside of the clamping rod, a diversion plate is fixedly arranged.

[0008] Preferably, a screw rod is threadedly connected to the rear end inside the clamping shell. One end of the screw rod is rotatably connected to the outer wall of the abutting frame.

[0009] Preferably, a water storage box is arranged at one end of the clamping rod. Above the water storage box, a cushion box is arranged. The inner bottom of the cushion box is communicated with the water storage box through a diversion hole opened.

[0010] Preferably, an extension pipe is communicated and installed at the inner bottom of the water storage box. A chamber is arranged in the middle of the housing. The drainage part of the extension pipe is located above the chamber.

[0011] Preferably, drainage holes are opened at the bottom of both ends inside the housing. The cushion box is made of rubber anti-corrosion material, and a diversion chamber is opened above the inside of the cushion box.

[0012] Compared with the prior art, the present invention has the following beneficial effects: By connecting the fastening screw rods at both ends of the two sets of shells with the sleeves, the fastening handle drives the sleeves to rotate, and the bidirectional synchronous telescoping of the screw rods is achieved through the ratchet mechanism, so that it can be used for cable insulator strings of different lengths.

[0013] Through the arranged elastic components, when the cable insulator body vibrates due to reasons such as wind force, the clamping shell can convert the vibration energy into elastic potential energy through the movable rods, springs, cylinder shells, and rotating shafts inclined on both sides, consume the vibration force, and thus solve the problem of loosening of the rigid connection of the traditional connecting bolts, ensuring more stable clamping on the outside of the cable insulator body.

[0014] The arranged cushion box can be wrapped above the outside of the clamping structure, and a diversion cavity and diversion holes are arranged inside the cushion box. The accumulated water flows into the inside of the water storage box through the diversion holes, is discharged into the chamber of the shell through the extension pipe, and finally is discharged through the drain holes at both ends of the shell, so that the corrosion of conventional fastening metal parts such as the abutment frame by the accumulated water can be avoided, and the problem of electrical performance deterioration is also reduced. Brief Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall connection structure of the present invention from another angle; Figure 3 It is a schematic diagram of the connection structure between the clamping groove, the abutment frame and the clamping shell of the present invention; Figure 4 It is a schematic diagram of the connection structure between the clamping shell, the abutment frame and the connection block of the present invention from another angle; Figure 5 It is a schematic diagram of the disassembled connection structure between the cushion box, the water storage box, the diversion plate and the abutment frame of the present invention; Figure 6 It is a schematic diagram of the structure of the inner chamber and the drain holes of the shell of the present invention.

[0016] In the figure: 1. Shell; 2. Cable insulator body; 3. Sleeve; 4. Fastening handle; 5. Fixed column; 6. Arc-shaped frame; 7. Water storage box; 8. Diversion plate; 9. Fastening screw rod; 10. Screw; 11. Cylinder shell; 12. Cushion box; 13. Abutment frame; 14. Clamping shell; 15. Connection block; 16. Clamping groove; 17. Rotating sleeve; 18. Movable rod; 19. U-shaped block; 20. Diversion cavity; 21. Diversion hole; 22. Extension pipe; 23. Drain hole; 24. Chamber; 25. Rotating shaft; 26. Spring; 27. Clamping rod. Detailed Embodiment

[0017] In order to be able to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0018] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention may be practiced in other ways than those specifically described herein, and thus, the present invention is not limited to the limitations of the specific embodiments disclosed below.

[0019] As Figures 1-6 shown, a multi-adaptive overhead cable insulator replacement device includes a housing 1 and a cable insulator main body 2. There are two sets of the housing 1, and both ends inside the two sets of the housing 1 are connected by corresponding locking members. The cable insulator main body 2 is located in the middle inside the two sets of the housing 1. On both sides above the housing 1, fixed columns 5 are fixedly arranged. On both outer sides of the two fixed columns 5, an arc-shaped frame 6 is jointly arranged. On both inner sides of the arc-shaped frame 6, a clamping member is jointly connected by an inclined elastic component. On both outer sides of the two ends of the cable insulator main body 2, clamping grooves 16 are symmetrically opened respectively. The clamping member is clamped inside the clamping groove 16 to fix the cable insulator main body 2.

[0020] The locking member includes fastening lead screws 9 respectively arranged at one end inside the two sets of the housing 1. At one end where the two fastening lead screws 9 at the same end are close to each other, a sleeve 3 is arranged. A ratchet is connected to the outside of the sleeve 3 with a fastening handle 4. The fastening handle 4 drives the sleeve 3 to rotate to drive the two fastening lead screws 9 at both ends to extend and contract towards both ends; The worker rotates the fastening handle 4, and through the ratchet assembly inside it, the sleeve 3 can be driven to rotate. The sleeve 3 drives the fastening lead screws 9 at both ends of the two sets of the housing 1 to synchronously expand and contract, realizing flexible adjustment of the distance between the two sets of the housing 1 to adapt to cable insulator strings of different lengths.

[0021] It should be specifically noted that the outer wall of the sleeve 3 is processed with ratchet teeth, and the fastening handle 4 is embedded with a ratchet pawl mechanism; The elastic component includes a U-shaped block 19 arranged on one side inside the arc-shaped frame 6. Inside the U-shaped block 19, a cylinder shell 11 is arranged. Inside the cylinder shell 11, a spring 26 is arranged. Inside the cylinder shell 11 and close to one end of the spring 26, a movable rod 18 is slidably installed. At one end of the movable rod 18 away from the spring 26, a rotating sleeve 17 is arranged. Inside the rotating sleeve 17, a rotating shaft 25 is rotatably inserted. On the outside of the rotating shaft 25, a connecting block 15 is arranged. On one side where the two connecting blocks 15 are close to each other, a clamping shell 14 is jointly arranged. Inside the clamping shell 14, a resisting frame 13 is slidably installed. Above the resisting frame 13, a clamping rod 27 extends out. Above the outside of the clamping rod 27, a diversion plate 8 is fixedly arranged. One end of the movable rod 18 is inserted into the barrel shell 11 and abuts against the spring 26, and the other end is hinged to the rotating sleeve 17. When the vibration force of the cable insulator body 2 is transmitted to the abutting frame 13 and the clamping shell 14, the clamping shell 14 is pushed to have a slight offset. The movable rod 18 compresses the spring 26 inside the barrel shell 11 under the lateral force. 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 abutting frame 13 and the clamping groove 16 are prevented from having a rigid collision, ensuring the stability of the cable insulator body 2 during clamping. The flow guide plate 8 protects the structure below the outside of the clamping shell 14.

[0022] A screw rod 10 is threadedly connected to the rear end inside the clamping shell 14. One end of the screw rod 10 is rotatably connected to the outer wall of the abutting frame 13. The worker rotates the screw rod 10 to drive the abutting frame 13 to slide inside the clamping shell 14 until the outer wall of the abutting frame 13 abuts tightly against the outer surface of the clamping groove 16, thereby completing the fixation of the cable insulator body 2.

[0023] One end of the clamping rod 27 is provided with a water storage box 7. Above the water storage box 7 is provided a cushion box 12. The inner bottom of the cushion box 12 is communicated with the water storage box 7 through a diversion hole 21 opened. The inner bottom of the water storage box 7 is communicated and installed with an extension pipe 22. A chamber 24 is arranged in the middle of the shell 1. The drainage part of the extension pipe 22 is located above the chamber 24. Drainage holes 23 are opened at the bottom of both ends inside the shell 1. The cushion box 12 is made of rubber anti-corrosion material, and a diversion chamber 20 is opened above the inside of the cushion box 12; The rainwater at the locking structure outside the cable insulator body 2 can be guided by the cushion box 12, so that the rainwater flows into the water storage box 7 through the diversion chamber 20 and then through the diversion hole 21. The accumulated water inside the water storage box 7 is discharged into the lower chamber 24 through the extension pipe 22. The chamber 24 can temporarily store the rainwater and discharge the rainwater through the drainage holes 23, so that the rainwater does not contact the metal parts at the clamping groove 16 outside the cable insulator body 2, avoiding corrosion of the metal parts.

[0024] Working principle: When in use, when the sleeve 3 is rotated by driving the fastening handle 4, the left and right hand threads synchronously drive the fastening screw rod 9 to expand and contract, realizing stepless adjustment of the distance between the two groups of shells 1 to adapt to different lengths of cable insulator strings; The two fixing columns 5 and the arc-shaped frame 6 can be moved to the two ends of the clamping groove 16 of the cable insulator body 2. The worker drives the abutting frame 13 to move into the clamping groove 16 by rotating the screw rod 10 until the outer wall of the abutting frame 13 presses against the outer surface of the clamping groove 16, completing the fixation of the cable insulator body 2; When the external connection structure of the cable insulator main body 2 vibrates, the vibration force can be transmitted to the cable insulator main body 2, the abutting frame 13 and the clamping shell 14. Therefore, the movable rods 18 inclined on both sides of the clamping shell 14 will compress the springs 26 inside the corresponding cylinder shells 11 according to the offset direction. 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 abutting frame 13 and the clamping shell 14, converting the vibration force into the elastic deformation of the springs 26 to achieve multi-directional buffering, which can solve the problem that the traditional connector is loosened due to rigid vibration, resulting in the cable insulator main body 2 falling off; The rainwater inside the diversion cavity 20 can be collected at the diversion holes 21 through the arranged cushion boxes 12, then flow into the water storage box 7, and then be discharged into the chamber 24 of the housing 1 through the extension pipes 22, and finally be discharged through the drain holes 23 at both ends of the housing 1 to avoid water accumulation from corroding metal components.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A multi-adaptive overhead cable insulator replacement device, comprising a housing (1) and a cable insulator main body (2), characterized in that: There are two sets of the said housing (1). The two ends inside the two sets of the housing (1) are connected by correspondingly arranged locking members. The cable insulator main body (2) is located in the middle inside the two sets of the housing (1). On both sides above the housing (1), fixing columns (5) are fixedly arranged. On both outer sides of the two fixing columns (5), an arc-shaped frame (6) is arranged. On both inner sides of the arc-shaped frame (6), a clamping member is jointly connected by an inclined elastic component. On the outer sides of both ends of the cable insulator main body (2), clamping slots (16) are symmetrically opened respectively. The clamping member is clamped inside the clamping slot (16) to fix the cable insulator main body (2).

2. The multi-adaptive overhead cable insulator replacement device according to claim 1, characterized in that: The said locking member includes fastening lead screws (9) respectively arranged at one end inside the two sets of the housing (1). At one end where the two fastening lead screws (9) at the same end are close to each other, a sleeve (3) is arranged. A fastening handle (4) is ratchet-connected to the outside of the sleeve (3). The fastening handle (4) drives the sleeve (3) to rotate to drive the two fastening lead screws (9) at both ends to extend and contract towards both ends.

3. The multi-adaptive overhead cable insulator replacement device according to claim 1, characterized in that: The said elastic component includes a U-shaped block (19) arranged on one side inside the arc-shaped frame (6). Inside the U-shaped block (19), a cylinder shell (11) is arranged. Inside the cylinder shell (11), a spring (26) is arranged. Inside the cylinder shell (11) and close to one end of the spring (26), a movable rod (18) is slidably installed. At one end of the movable rod (18) away from the spring (26), a rotating sleeve (17) is arranged. A rotating shaft (25) is rotatably inserted inside the rotating sleeve (17). A connecting block (15) is arranged on the outside of the rotating shaft (25).

4. A multi-adaptive overhead cable insulator replacement device according to claim 3, characterized in that: On one side where the two connecting blocks (15) are close to each other, a clamping shell (14) is jointly arranged. Inside the clamping shell (14), a resisting frame (13) is slidably installed. Above the resisting frame (13), a clamping rod (27) extends out. Above the outside of the clamping rod (27), a diversion plate (8) is fixedly arranged.

5. The multi-adaptive overhead cable insulator replacement device according to claim 4, characterized in that: At the rear end inside the clamping shell (14), a screw rod (10) is threadedly connected. One end of the screw rod (10) is rotatably connected to the outer wall of the resisting frame (13).

6. The multi-adaptive overhead cable insulator replacement device according to claim 4, characterized in that: At one end of the clamping rod (27), a water storage box (7) is arranged. Above the water storage box (7), a cushion box (12) is arranged. The inner bottom of the cushion box (12) is communicated with the water storage box (7) through a diversion hole (21) opened.

7. The multi-adaptive overhead cable insulator replacement device according to claim 6, wherein: At the inner bottom of the water storage box (7), an extension pipe (22) is communicated and installed. In the middle inside the housing (1), a chamber (24) is arranged. The drainage part of the extension pipe (22) is located above the chamber (24).

8. A multi-adaptive overhead cable insulator replacement device according to claim 7, characterized in that: At the bottom of both ends inside the housing (1), drainage holes (23) are opened. The cushion box (12) is made of rubber anti-corrosion material, and a diversion cavity (20) is opened above the inside of the cushion box (12).

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