A box-type transformer high-voltage incoming line cable reinforcing device

Abstract

The utility model discloses a box -type transformer high -voltage incoming line cable reinforcing device, including the support shell of half surrounding shape, the half surrounding cavity of support shell is connected with the sliding seat, both ends of sliding seat all articulate articulated link, the one side equipped with the adjusting seat of sliding seat away from support shell, the one end of articulated link away from sliding seat penetrates adjusting seat, both ends of adjusting seat all are equipped with the horn nut, the horn nut is connected with articulated link and the one end of adjusting seat penetration screw thread, the utility model discloses through the positioning installation of support shell to sliding seat, and through articulated link cooperation horn nut, will sliding seat and adjusting seat connect, and through the adjustment horn nut drive adjusting seat moves along articulated link to sliding seat, and then through sliding seat and adjusting seat cooperation, the incoming line cable is clamped and fixed, solved the incoming line cable subsidence and caused the clearance of isolation switch joint place to appear and the trouble of the joint discharge, heating burnout etc.

Description

Technical Field

[0001] This utility model relates to the field of transformer equipment technology, specifically to a device for reinforcing the high-voltage incoming cable of a box-type transformer. Background Technology

[0002] In existing technologies, cable clamps are installed at the inlet of the transformer enclosure when the high-voltage incoming cable of a box-type transformer leaves the factory. However, the clamps often lack sufficient support, causing the incoming cable to sink under gravity. This results in gaps at the isolating switch joint of the high-voltage incoming cable, which can easily lead to discharge, overheating, and burn-out at the isolating switch joint, and even cause transformer failure. Therefore, a reinforcement device for the high-voltage incoming cable of a box-type transformer is proposed. Utility Model Content

[0003] The purpose of this utility model is to provide a device for reinforcing the high-voltage incoming cable of a box-type transformer in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0005] A device for reinforcing the high-voltage incoming cable of a box-type transformer includes a semi-enclosed support shell. A sliding seat is connected inside the semi-enclosed cavity of the support shell. Both ends of the sliding seat are hinged with hinge rods. An adjusting seat is provided on the side of the sliding seat away from the support shell. The end of the hinge rod away from the sliding seat passes through the adjusting seat. Both ends of the adjusting seat are provided with horn nuts. The horn nuts are threadedly connected to the end of the hinge rod that passes through the adjusting seat.

[0006] Preferably, the sliding seat and the adjusting seat are respectively provided with a first clamping groove and a second clamping groove that are concave in an angle on their adjacent sides, and the first clamping groove and the second clamping groove are used to clamp the cable.

[0007] Preferably, both ends of the adjusting seat are provided with guide grooves, and both ends of the sliding seat are slidably fitted in the guide grooves.

[0008] Preferably, both ends of the sliding seat near the adjusting seat are provided with hinge grooves, one end of the hinge rod is hinged in the hinge groove by a pin, and the two ends of the adjusting seat opposite to the sliding seat are symmetrically provided with lateral opening slots. The shaft segment of the hinge rod opposite to the sliding seat swings around the pin and enters the guide groove and is locked in the slot.

[0009] Preferably, the bottom end of the support shell is provided with a base plate, and a guide rail that is detachably connected to the semi-enclosed cavity inner wall of the support shell is provided above the base plate. Guide grooves are provided at both ends of the sliding seat on the side away from the adjustment seat, and the guide grooves are slidably connected to the guide rail.

[0010] Preferably, both sides of the base plate are threaded with screw bolts that are screwed into the inner cavity of the support shell, and the end face of the sliding seat is provided with a recessed positioning countersunk hole, and one end of the screw bolt extending into the support shell is rotatably engaged with the positioning countersunk hole.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. This utility model connects the box-type transformer housing to the support shell, positions and installs the sliding seat using the support shell, and connects the sliding seat and the adjusting seat using a hinge rod and a nut. By adjusting the nut, the adjusting seat is driven to move along the hinge rod towards the sliding seat. In turn, the sliding seat and the adjusting seat work together to clamp and fix the incoming cable, preventing the incoming cable from sinking due to gravity. This solves the problem of gaps at the isolating switch joint caused by the sinking of the incoming cable, as well as the resulting faults such as joint discharge, overheating and burning.

[0013] 2. This utility model improves the stability of cable clamping by the sliding seat and the adjusting seat by opening a first clamping groove and a second clamping groove in an angled shape on the adjacent side of the sliding seat and the adjusting seat, respectively. Furthermore, the first anti-slip pad and the second anti-slip pad cover the outer wall of the cable to increase the contact area of ​​clamping and further prevent the incoming cable from sinking and slipping.

[0014] 3. This utility model provides guide rails on both sides of the inner cavity of the support shell. The guide rails cooperate with the guide grooves on both sides of the sliding seat, and the guide rails guide the sliding seat vertically. By setting a base plate at the bottom of the support shell, the sliding seat is limited to move downward. This makes it easier to adjust the clamping position of the sliding seat and the adjusting seat on the incoming cable. The vertical position of the sliding seat is finely adjusted by the locating countersunk hole of the screw bolt, and the position of the incoming cable is finely adjusted up and down. This effectively prevents the incoming cable from sinking and makes the operation more convenient. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0016] Figure 2 This is a half-sectional schematic diagram of the present invention;

[0017] Figure 3 This is an exploded view of the present invention;

[0018] Figure 4 This is an exploded view of the sliding seat and adjusting seat in this utility model.

[0019] Reference numerals in the attached drawings: 1. Support shell; 2. Base plate; 3. Top plate; 4. Guide rail; 5. Sliding seat; 6. Guide groove; 7. First clamping groove; 8. First anti-slip pad; 9. Hinge groove; 10. Pin; 11. Hinge rod; 12. Adjusting seat; 13. Second clamping groove; 14. Second anti-slip pad; 15. Guide groove; 16. Slot; 17. Claw nut; 18. Claw bolt; 19. Positioning countersunk hole. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0021] Please see Figure 1 - Figure 4 This utility model provides a reinforcement device for the high-voltage incoming cable of a box-type transformer, including a semi-enclosed support shell 1. Specifically, the cross-section of the support shell 1 is U-shaped. A top plate 3 is provided on the outer side of the top of the semi-enclosed cavity of the support shell 1. Specifically, the top plate 3 is U-shaped and welded to the top of the support shell 1. The top plate 3 is used to connect to the bottom surface of the box-type transformer housing by bolts. A sliding seat 5 is connected inside the semi-enclosed cavity of the support shell 1. Both ends of the sliding seat 5 are hinged with hinge rods 11. An adjusting seat 12 is provided on the side of the sliding seat 5 away from the support shell 1. Specifically, the incoming cable passes between the sliding seat 5 and the adjusting seat 12 and is introduced into the box-type transformer housing. The end of the hinge rod 11 away from the sliding seat 5 passes through the adjusting seat 12. Both ends of the adjusting seat 12 are provided with horn nuts 17. The horn nuts 17 are connected to the hinge... The connecting rod 11 is threaded through one end of the adjusting seat 12. Specifically, the shaft end of the connecting rod 11 opposite to the sliding seat 5 is machined with an external thread for threaded connection with the nut 17. This allows the support shell 1 to be connected to the box-type transformer housing by welding a conformal top plate 3 to the top of the support shell 1 and using bolts to connect the support shell 1 to the box-type transformer housing. The support shell 1 positions and installs the sliding seat 5, and the sliding seat 5 and adjusting seat 12 are connected by the connecting rod 11 and the nut 17. The adjusting seat 12 is driven to move along the connecting rod 11 toward the sliding seat 5 by adjusting the nut 17. The sliding seat 5 and adjusting seat 12 then clamp and fix the incoming cable, preventing the incoming cable from sinking due to gravity. This solves the problem of gaps at the isolating switch joint caused by the sinking of the incoming cable, as well as the resulting joint discharge, overheating and burning, and even transformer failure.

[0022] In this embodiment, the sliding seat 5 and the adjusting seat 12 are further provided with a first clamping groove 7 and a second clamping groove 13 that are concave at an angle on their adjacent sides. Specifically, the angle between the first clamping groove 7 and the second clamping groove 13 is 90-180°. The first clamping groove 7 and the second clamping groove 13 are used to clamp the cable. By providing the first clamping groove 7 and the second clamping groove 13 that are concave at an angle on their adjacent sides, the stability of the cable clamping by the sliding seat 5 and the adjusting seat 12 is improved through the cooperation of the first clamping groove 7 and the second clamping groove 13.

[0023] In this embodiment, a first anti-slip pad 8 and a second anti-slip pad 14 are respectively provided in the first clamping groove 7 and the second clamping groove 13. Specifically, the first anti-slip pad 8 and the second anti-slip pad 14 are made of rubber and are respectively recessed into the first clamping groove 7 and the second clamping groove 13. The first anti-slip pad 8 and the second anti-slip pad 14 can cover the outer wall of the cable, thereby increasing the contact area of ​​clamping and further preventing the incoming cable from sinking and slipping.

[0024] In this embodiment, further, guide grooves 15 are provided at both ends of the adjusting seat 12. The guide grooves 15 at both ends of the adjusting seat 12 are symmetrically distributed on both sides of the second clamping groove 13, and the concave depth of the second clamping groove 13 is greater than the concave depth of the first clamping groove 7. The guide groove 15 protrudes from the second clamping groove 13 and forms extending grooves on both sides thereon. The two ends of the sliding seat 5 are slidably engaged in the guide groove 15. The sliding seat 5 can be covered by the guide groove 15, and the sliding seat 5 and the adjusting seat 12 can be slidably engaged. This makes it easier to adjust the engagement distance of the first clamping groove 7 and the second clamping groove 13 according to the specifications of the incoming cable, while preventing the incoming cable from laterally disengaging from the first clamping groove 7 and the second clamping groove 13.

[0025] In this embodiment, furthermore, both ends of the sliding seat 5 near the adjusting seat 12 are provided with hinge grooves 9. Specifically, the hinge grooves 9 at both ends of the sliding seat 5 are symmetrically distributed on both sides of the first clamping groove 7. One end of the hinge rod 11 is hinged in the hinge groove 9 by a pin 10. Specifically, both ends of the sliding seat 5 are provided with pins 10 that pass through the hinge groove 9. The pins 10 and the end of the hinge rod 11 that extends into the hinge groove 9 are engaged with a shaft hole. The adjusting seat 12 is provided with symmetrically opened side-opening slots 16 at both ends of the side of the adjusting seat 12 away from the sliding seat 5. Specifically, the slots 16 are... The U-shaped through groove, together with the guide groove 15, allows the hinge rod 11, on the side away from the sliding seat 5, to swing around the pin 10 and enter the guide groove 15 and be engaged in the slot 16. The hinge groove 9, in conjunction with the pin 10, can be used to hinge and position the hinge rod 11, allowing it to swing around the pin 10. The slot 16, with its lateral opening on the inner bottom surface of the guide groove 15, allows the hinge rod 11 to swing and be engaged in the slot 16. The end of the hinge rod 11 extending out of the adjusting seat 12 is then threadedly connected to the nut 17, making it easier to disassemble and assemble the adjusting seat 12 and to handle the cable.

[0026] In this embodiment, the bottom end of the semi-enclosed cavity of the support shell 1 is further provided with a base plate 2. Specifically, the base plate 2 is welded to the bottom end of the semi-enclosed cavity of the support shell 1 and closes the port of the bottom end of the semi-enclosed cavity of the support shell 1. A guide rail 4 is provided above the base plate 2 and is detachably connected to the inner wall of the semi-enclosed cavity of the support shell 1. Specifically, the outer end face of the support shell 1 is provided with a through hole for bolts. The support shell 1 and the guide rail 4 are connected by bolts. Guide grooves 6 are provided at both ends of the sliding seat 5 away from the adjusting seat 12. The guide grooves 6 are slidably connected to the guide rails 4. The guide rails 4 are set on both sides of the inner cavity. The guide rails 4 cooperate with the guide grooves 6 on both sides of the sliding seat 5 to guide the sliding seat 5 vertically. By setting the base plate 2 at the bottom end of the support shell 1, the sliding seat 5 is limited to move downward, which makes it easier to adjust the clamping position of the sliding seat 5 and the adjusting seat 12 on the incoming cable.

[0027] In this embodiment, furthermore, both sides of the base plate 2 are threaded with screw bolts 18 that are screwed into the inner cavity of the support shell 1. Specifically, both sides of the base plate 2 are provided with internal threaded holes, and the screw bolts 18 are threadedly connected to the internal threaded holes on both sides of the base plate 2. The screw end of the screw bolt 18 is located below the base plate 2. The end face of the sliding seat 5 is provided with a recessed positioning countersunk hole 19. One end of the screw bolt 18 extending into the support shell 1 is rotatably engaged with the positioning countersunk hole 19. Specifically, one end of the screw bolt 18 screwed into the support shell 1 is engaged with the positioning countersunk hole 19, and the end abuts against the inner end face of the positioning countersunk hole 19. The vertical position of the sliding seat 5 can be finely adjusted by the screw bolt 18 abutting against the positioning countersunk hole 19, thereby finely adjusting the incoming cable. This effectively ensures that the incoming cable will not sink, making the operation more convenient.

[0028] The working principle of this utility model:

[0029] In use, the sliding seat 5 is installed into the support shell 1 by the cooperation of the guide rail 4 and the guide groove 6, and the support shell 1 is connected to the box-type transformer box by the cooperation of the top plate 3 and the bolts. The incoming cable is inserted into the box-type transformer box and connected to the isolating switch.

[0030] After the incoming cable is connected, the adjusting seat 12 is initially matched with the sliding seat 5 through the guide groove 15, and the outer wall of the cable is covered by the first anti-slip pad 8 and the second anti-slip pad 14.

[0031] By moving the hinge rod 11 around the pin 10, the hinge rod 11 is inserted into the slot 16 and the guide slot 15. By turning the horn nut 17, the distance between the adjusting seat 12 and the sliding seat 5 is reduced. Then, through the cooperation of the sliding seat 5 and the adjusting seat 12, the incoming cable is firmly clamped.

[0032] By using the screw bolt 18 to abut against the positioning countersunk hole 19 and turning the screw bolt 18 to fine-tune the vertical position of the sliding seat 5, the incoming cable can be finely adjusted up and down, effectively preventing the incoming cable from sinking. This makes the operation more convenient and solves the problem of gaps appearing at the isolating switch joint caused by the sinking of the incoming cable, as well as the resulting joint discharge, overheating and burning, and even transformer failure.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for reinforcing high-voltage incoming cable of a box-type transformer, comprising a support shell (1) in the form of a half-enclosure, characterised in that: A sliding seat (5) is connected inside the semi-enclosed cavity of the support shell (1). Both ends of the sliding seat (5) are hinged with hinge rods (11). An adjustment seat (12) is provided on the side of the sliding seat (5) away from the support shell (1). The end of the hinge rod (11) away from the sliding seat (5) passes through the adjustment seat (12). Both ends of the adjustment seat (12) are provided with horn nuts (17). The horn nuts (17) are threadedly connected to the end of the hinge rod (11) that passes through the adjustment seat (12).

2. A box-type transformer high voltage service entrance cable reinforcing device according to claim 1, characterized in that: The sliding seat (5) and the adjusting seat (12) are respectively provided with a first clamping groove (7) and a second clamping groove (13) that are concave in an angle on the adjacent side. The first clamping groove (7) and the second clamping groove (13) are used to clamp the cable.

3. The high-voltage incoming cable reinforcement device for a box-type transformer according to claim 2, characterized in that: Both ends of the adjusting seat (12) are provided with guide grooves (15), and both ends of the sliding seat (5) are slidably fitted in the guide grooves (15).

4. The high-voltage incoming cable reinforcement device for a box-type transformer according to claim 3, characterized in that: The sliding seat (5) has hinge grooves (9) at both ends of the side face near the adjusting seat (12). One end of the hinge rod (11) is hinged in the hinge groove (9) by a pin (10). The adjusting seat (12) has symmetrically opened slots (16) at both ends of the side face away from the sliding seat (5). The shaft segment of the hinge rod (11) away from the sliding seat (5) swings around the pin (10) into the guide groove (15) and is locked into the slot (16).

5. The high-voltage incoming cable reinforcement device for a box-type transformer according to claim 1, characterized in that: The bottom end of the support shell (1) is provided with a base plate (2), and the top of the base plate (2) is provided with a guide rail (4) that is detachably connected to the semi-enclosed cavity inner wall of the support shell (1). The sliding seat (5) has guide grooves (6) at both ends on the side away from the adjustment seat (12), and the guide grooves (6) are slidably connected to the guide rail (4).

6. The high-voltage incoming cable reinforcement device for a box-type transformer according to claim 5, characterized in that: Both sides of the base plate (2) are threaded with screw bolts (18) that are screwed into the inner cavity of the support shell (1). The end face of the sliding seat (5) is provided with a recessed positioning countersunk hole (19). One end of the screw bolt (18) that extends into the support shell (1) is rotatably engaged with the positioning countersunk hole (19).

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