High-voltage lead structure of transformer

Abstract

The transformer high-voltage lead structure comprises a lead box, the upper end face and the lower end face of the lead box are each provided with two threading openings, a lead pipe is arranged in each threading opening, a wire inlet is formed in each lead pipe, and screw rods are rotationally arranged on the upper inner wall and the lower inner wall of the lead box. Each two lead pipes are connected with the screw rods through a movable mechanism, a driving gear is arranged in the lead box, the driving gear is connected with the two screw rods through a transmission mechanism, a rotating block is rotationally arranged on the outer wall of the lead box, the rotating block is connected with the driving gear through a rotating mechanism, and two C-shaped blocks are arranged in the lead box. According to the utility model, the screw rod, the movable plate, the connecting plate and the lead pipes are arranged, and the approaching or departing of the two groups of lead pipes corresponding up and down is completed through the rotation of the screw rod, so that compared with manual pressing, the device has higher convenience, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage lead wires, in particular to a transformer high-voltage lead wire structure. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, the secondary coil and the iron core (magnetic core). The main functions of the transformer are: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc. According to its use, it can be divided into: power transformers and special transformers. The transformer includes a high-voltage coil and a low-voltage coil. The high-voltage lead of the high-voltage coil needs to be connected to the tap changer for voltage regulation.

[0003] Referring to the disclosure (announcement) number: CN212967370U, a multifunctional transformer high-voltage lead structure is proposed. The utility model relates to the field of high-voltage lead technology, and discloses a multifunctional transformer high-voltage lead structure, including a lead box, the top of which is vertically provided with an upper lead groove, one end of the two groups of upper lead groove protrusions is parallel to the front and rear ends of the lead box, and the interiors of the two groups of upper lead grooves are vertically and movably installed with upper lead tubes, and the top of the upper lead tubes is provided with an upper wire entry port. The movable adjustment of the upper lead tube and the lower lead tube in the above scheme is completed by manual pressing. When the two groups of upper lead tubes and the lower lead tubes are synchronously adjusted, there is a disadvantage of inconvenient operation. In order to improve the convenience of the device, improvements are made to the above scheme, and a transformer high-voltage lead structure is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a transformer high voltage lead structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A transformer high-voltage lead structure comprises a lead box, wherein the upper and lower end surfaces of the lead box are both provided with two threading openings, each of the threading openings is provided with a lead tube, and the lead tube is provided with a wire entry opening, the upper and lower inner walls of the lead box are both rotatably provided with screws, and every two of the lead tubes are connected to the screws through a movable mechanism, a driving gear is provided in the lead box, and the driving gear is connected to the two screws through a transmission mechanism, a rotating block is rotatably provided on the outer wall of the lead box, and the rotating block is connected to the driving gear through a rotating mechanism, and two C-shaped blocks are provided in the lead box.

[0007] Preferably, the movable mechanism comprises a movable plate threadedly sleeved on the screw rod, a connecting plate is provided on the lead tube, and the movable plate is connected to the connecting plate by mounting bolts.

[0008] Preferably, the transmission mechanism comprises a transmission gear disposed on the end of the screw, the transmission gear meshing with the driving gear.

[0009] Preferably, the rotating mechanism comprises a rotating shaft connected to the driving gear, the rotating shaft rotates through the inner wall of the lead box and extends to the outside of the lead box and is fixedly connected to the rotating block.

[0010] Preferably, a support frame is fixedly provided on the inner wall of the lead box, the rotating shaft is rotatably connected to the support frame, and the C-shaped block is connected to the support frame via a stabilizing plate.

[0011] Preferably, two support plates are further provided in the lead box, and the screw rod is rotatably connected to the support plates.

[0012] Beneficial effects of the utility model:

[0013] 1. By setting a screw, a movable plate, a connecting plate and a lead tube, the two corresponding sets of lead tubes above and below are moved closer or farther away by rotating the screw, which is more convenient than manual pressing, thereby improving the practicability of the device.

[0014] 2. By setting the rotating block, the driving gear and the transmission gear, the synchronous rotation operation of the upper and lower screws in the lead box is realized, which ensures the linkage effect of the device, thereby further improving the convenience of use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a transformer high voltage lead structure proposed by the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the structure of the internal components of the middle lead box;

[0017] Figure 3 for Figure 2 A schematic diagram of the structure at A;

[0018] Figure 4 for Figure 2 Schematic diagram of the structure viewed from above.

[0019] In the figure: 1 lead box, 2 rotating block, 3 threading port, 4 lead tube, 5 wire entry port, 6 screw rod, 7 movable plate, 8 connecting plate, 9 mounting bolt, 10 C-shaped block, 11 stabilizing plate, 12 transmission gear, 13 driving gear, 14 rotating shaft, 15 support frame, 16 support plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-4 A transformer high-voltage lead structure includes a lead box 1, and the upper and lower end surfaces of the lead box 1 are each provided with two threading openings 3, each threading opening 3 is provided with a lead tube 4, and the lead tube 4 is provided with a wire entry opening 5. A total of four threading openings 3 and lead tubes 4 are provided, corresponding to each other from top to bottom. For details, please refer to the attached drawings of this scheme. At the same time, the above-mentioned equipment components are the same as a multifunctional transformer high-voltage lead structure proposed in the reference scheme disclosure (announcement) number: CN212967370U. Therefore, the above-mentioned equipment components can refer to the disclosed and authorized scheme, and will not be repeated in this scheme.

[0022] Screws 6 are rotatably provided on the upper and lower inner walls of the lead box 1, and every two lead tubes 4 are connected to the screws 6 through a movable mechanism. The movable mechanism includes a movable plate 7 threadedly sleeved on the screws 6, and a connecting plate 8 is provided on the lead tube 4. The movable plate 7 is connected to the connecting plate 8 by mounting bolts 9. When the front and rear plates of the lead box 1 are opened, the lead tube 4 can be disassembled by removing the mounting bolts 9. In this scheme, a back plate is provided on the back of the lead box 1 (the side away from the rotating block 2), and the back plate is connected to the lead box 1 by means of fixing bolts. After removing the back plate, the equipment components in the lead box 1 can be observed and operated, etc. For example, after removing the above-mentioned mounting bolts and when the lead tube 4 is inside the lead box 1, the lead tube 4 can be disassembled, thereby facilitating its cleaning or maintenance, etc., because dust on the outer wall of the wire body may remain on it during the threading process.

[0023] A driving gear 13 is rotatably provided on the inner wall of the lead box 1, and the driving gear 13 is connected to the two screw rods 6 through a transmission mechanism. The transmission mechanism includes a transmission gear 12 arranged on the end of the screw rod 6, and the transmission gear 12 is meshed with the driving gear 13. As shown in the figure, the driving gear 13 and the transmission gear 12 are both bevel gears. The screw rod 6 connected to the transmission gear 12 is provided with a thread on the outer wall according to its rotation direction, so as to ensure that the two movable plates 7 move away from or close to each other synchronously.

[0024] A rotating block 2 is rotatably provided on the outer wall of the lead box 1, and the rotating block 2 is connected to the driving gear 13 through a rotating mechanism. Two C-shaped blocks 10 are provided in the lead box 1, and the rotating mechanism includes a rotating shaft 14 connected to the driving gear 13. The rotating shaft 14 rotates through the inner wall of the lead box 1 and extends to the outside of the lead box 1 and is fixedly connected to the rotating block 2. With the help of the rotating block 2 arranged outside, the rotation operation of the driving gear 13 can be realized.

[0025] A support frame 15 is fixedly provided on the inner wall of the lead box 1, and the rotating shaft 14 is rotatably connected to the support frame 15. The C-shaped block 10 is connected to the support frame 15 through the stabilizing plate 11. Two support plates 16 are also provided in the lead box 1, and the screw 6 is rotatably connected to the support plate 16. The support frame 15 and the support plate 16 arranged above realize stable support of the screw 6 and the rotating shaft 14, ensuring its stability during rotation.

[0026] The utility model reference publication (announcement) number: CN212967370U proposes a multifunctional transformer high voltage lead structure, which only improves the proposed problem, specifically:

[0027] When the lead tube 4 needs to be close to the position of the C-shaped block 10, the rotating block 2 on the outer wall of the lead box 1 can be driven to rotate. When the rotating block 2 rotates, the rotating shaft 14 can be driven to rotate. The rotation of the rotating shaft 14 can drive the driving gear 13 to rotate. The rotation of the driving gear 13 can drive the transmission gear 12 to rotate. The rotation of the transmission gear 12 can drive the screw 6 to rotate. When the screw 6 rotates, the movable plate 7 on its outer wall can drive the lead tube 4 to move close to the C-shaped block 10 with the help of the connecting plate 8 to finally complete the wiring. Conversely, when the rotating block 2 rotates in the opposite direction, the moving and separating operation of the lead tube 4 can be realized.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A transformer high voltage lead structure, comprising a lead box (1), characterized in that: The lead box (1) is provided with two threading openings (3) on the upper and lower end surfaces, each of the threading openings (3) is provided with a lead tube (4), and the lead tube (4) is provided with a wire entry opening (5). The upper and lower inner walls of the lead box (1) are rotatably provided with screw rods (6), and each of the two lead tubes (4) is connected to the screw rods (6) through a movable mechanism. The lead box (1) is provided with a driving gear (13), and the driving gear (13) is connected to the two screw rods (6) through a transmission mechanism. The outer wall of the lead box (1) is rotatably provided with a rotating block (2), and the rotating block (2) is connected to the driving gear (13) through a rotating mechanism. The lead box (1) is provided with two C-shaped blocks (10).

2. A transformer high voltage lead structure according to claim 1, characterized in that: The movable mechanism comprises a movable plate (7) threadedly sleeved on a screw rod (6); a connecting plate (8) is provided on the lead-in tube (4); and the movable plate (7) is connected to the connecting plate (8) via mounting bolts (9).

3. A transformer high voltage lead structure according to claim 2, characterized in that: The transmission mechanism comprises a transmission gear (12) arranged on the end of the screw rod (6), and the transmission gear (12) is meshed with a driving gear (13).

4. A transformer high voltage lead structure according to claim 3, characterized in that: The rotating mechanism comprises a rotating shaft (14) connected to a driving gear (13); the rotating shaft (14) rotates through the inner wall of the lead box (1) and extends to the outside of the lead box (1) and is fixedly connected to the rotating block (2).

5. A transformer high voltage lead structure according to claim 4, characterized in that: A support frame (15) is fixedly arranged on the inner wall of the lead box (1), the rotating shaft (14) is rotatably connected to the support frame (15), and the C-shaped block (10) is connected to the support frame (15) via a stabilizing plate (11).

6. A transformer high voltage lead structure according to claim 5, characterized in that: Two support plates (16) are also provided in the lead box (1), and the screw rod (6) is rotatably connected to the support plates (16).

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