A transformer bushing oil filling device

Abstract

The utility model discloses a transformer bushing oil supplementing device, including oil storage tank and a plurality of oil injection nozzle, a plurality of oil injection nozzle all are fixedly sleeved with fixed plate, a plurality of fixed plate all are provided with the clamping mechanism for clamping the transformer bushing, the clamping mechanism includes the recess that opens at fixed plate both ends, the both ends inner wall between two recesses all are rotatably connected with the rotating link, two rotating links all are fixedly sleeved with fixed block, two fixed blocks's end part all are fixedly connected with the symmetrical clamping plate, two clamping plates's end part all are fixedly connected with handle. The utility model discloses reasonable in structure, realizes the automatic clamping of oil injection nozzle and transformer bushing through clamping mechanism, and personnel only need to operate handle to complete mounting and clamping and dismounting, need not whole -time handheld oil supplementing pipe, and the labor intensity is reduced greatly, avoids the oil leakage risk caused by the tired operation.

Description

Technical Field

[0001] This utility model relates to the technical field of transformer maintenance equipment, and in particular to a transformer bushing oil replenishment device. Background Technology

[0002] Transformer bushings are one of the key components of a transformer. The level of the insulating oil inside must be maintained within a specified range to ensure insulation performance and heat dissipation. During long-term use, the insulating oil may be depleted due to factors such as seal aging and temperature changes, requiring regular oil replenishment maintenance.

[0003] Traditional transformer bushing oil replenishment procedures have significant drawbacks: workers must carry independent oil replenishment devices, open the oil replenishment ports of each transformer bushing one by one, insert the oil replenishment pipe, and hold the pipe steady throughout the process until replenishment is complete. This method is not only labor-intensive, causing worker fatigue from holding the pipe for extended periods, but also results in poor sealing stability between the pipe and the port, leading to potential oil leaks. Furthermore, traditional devices can only replenish oil to a single bushing at a time, resulting in extremely low efficiency for multi-buffer transformers and severely impacting maintenance progress. To address the aforementioned issues, this invention proposes a device that can simultaneously replenish oil to multiple transformer bushings without manual operation, aiming to optimize the oil replenishment process and improve maintenance efficiency and safety. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a transformer bushing oil replenishment device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A transformer bushing oil replenishment device includes an oil storage tank and multiple oil injection nozzles. Each of the multiple oil injection nozzles is fixedly fitted with a fixing plate. Each of the fixing plates is provided with a clamping mechanism for clamping the transformer bushing. Each clamping mechanism includes grooves formed at both ends of the fixing plates. Rotating rods are rotatably connected between the inner walls of the two ends of each groove. Fixing blocks are fixedly fitted onto each of the two rotating rods. Symmetrical clamping plates are fixedly connected to the ends of each of the two fixing blocks. Handles are fixedly connected to the ends of each of the clamping plates. The rotatable connections between the rotating rods and the grooves are elastically connected by torsion springs. A liquid supply mechanism for supplying liquid to the oil injection nozzles is provided at the upper end of the oil storage tank.

[0006] Preferably, the liquid supply mechanism includes a liquid pump fixedly connected to the upper end of the oil storage tank, and the output end of the liquid pump is fixedly connected to an oil delivery hose, which is a corrugated pipe.

[0007] Preferably, the end of the oil nozzle is equipped with a connecting pipe, which is connected to the oil delivery hose.

[0008] Preferably, each of the handles is fitted with an anti-slip sleeve, and the anti-slip sleeves are all made of rubber.

[0009] Preferably, each of the plurality of clamps has an arc-shaped groove at one end near the oil injection nozzle, and each of the plurality of arc-shaped grooves is provided with an anti-slip pad.

[0010] Compared with the prior art, the advantages of this utility model are as follows: 1. The clamping mechanism enables automatic clamping between the oil nozzle and the transformer bushing. Operators only need to operate the handle to complete the clamping and disassembly, eliminating the need to hold the oil filling pipe throughout the process, greatly reducing labor intensity and avoiding the risk of oil leakage caused by fatigue operation.

[0011] 2. The device is equipped with multiple oil injection nozzles and is connected to the liquid pump through oil delivery hoses, which can simultaneously perform oil replenishment operations on multiple transformer bushings, significantly improving oil replenishment efficiency. It is especially suitable for batch maintenance of multi-bushing transformers.

[0012] 3. The arc-shaped groove of the clamp plate fits snugly against the outer wall of the transformer bushing, and the anti-slip pads ensure a firm clamping and prevent the oil nozzle from loosening or shifting during oil replenishment. The torsion spring provides continuous clamping force, making clamping operation convenient. The oil delivery hose adopts a corrugated design, which can be freely bent to adjust the angle and adapt to transformer bushings with different installation positions and spacings. The anti-slip sleeve design of the handle further enhances the convenience and safety of operation. Attached Figure Description

[0013] Figure 1 This is a perspective view of a transformer bushing oil replenishment device proposed in this utility model; Figure 2 A perspective view of the clamping mechanism of a transformer bushing oil replenishment device proposed in this utility model; Figure 3 A sectional perspective view of the clamping mechanism of a transformer bushing oil replenishment device proposed in this utility model; Figure 4 for Figure 3 Enlarged view of the structure at point A in the image.

[0014] In the diagram: 1. Oil reservoir, 2. Liquid pump, 3. Clamping plate, 4. Arc groove, 5. Oil delivery hose, 6. Fixing plate, 7. Handle, 8. Connecting pipe, 9. Oil nozzle, 10. Fixing block, 11. Groove, 12. Rotating rod, 13. Torsion spring. Detailed Implementation

[0015] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0016] Reference Figure 1-4 A transformer bushing oil replenishment device includes an oil storage tank 1 and multiple oil injection nozzles 9. Each of the multiple oil injection nozzles 9 is fixedly sleeved with a fixing plate 6. The fixing plate 6 is a rectangular plate structure, and each of the multiple fixing plates 6 is provided with a clamping mechanism for clamping the transformer bushing. The clamping mechanism includes grooves 11 formed at both ends of the fixed plate 6. The grooves 11 are U-shaped grooves. The inner walls of both ends of the two grooves 11 are rotatably connected to rotating rods 12 via bearings. The axis of the rotating rods 12 is perpendicular to the length direction of the fixed plate 6. Fixed blocks 10 are fixedly sleeved on both rotating rods 12. The ends of the two fixed blocks 10 are fixedly connected to symmetrical clamping plates 3. The ends of the two clamping plates 3 are fixedly connected to handles 7. The handles 7 and clamping plates 3 are set at an obtuse angle to facilitate the application of force. The rotating connection between the rotating rods 12 and the grooves 11 is elastically connected by torsion springs 13. One end of the torsion spring 13 is fixed to the outer wall of the rotating rod 12, and the other end is fixed to the inner wall of the groove 11. In the natural state, the torsion spring 13 drives the clamping plates 3 to be in a closed clamping state.

[0017] The upper end of the oil reservoir 1 is equipped with a liquid supply mechanism for supplying liquid to the oil injector 9. The liquid supply mechanism includes a liquid pump 2 that is fixedly connected to the upper end of the oil reservoir 1 by bolts. The input end of the liquid pump 2 extends to the bottom of the oil reservoir 1 through a pipe. The output end of the liquid pump 2 is fixedly connected to an oil delivery hose 5. The oil delivery hose 5 is a corrugated pipe with good bending adaptability and its direction can be adjusted according to the installation position. The end of the oil injector 9 is welded with a connecting pipe 8. The connecting pipe 8 is a rigid steel pipe. One end of it is connected to the inside of the oil injector 9, and the other end is detachably connected to the oil delivery hose 5 through a quick connector, which is convenient for replacing or maintaining the oil injector 9. Multiple handles 7 are fitted with anti-slip sleeves, all made of rubber, with anti-slip textures on their outer walls to increase the friction between the hand and the handles 7 and prevent slippage during operation; multiple clamping plates 3 have arc-shaped grooves 4 at the ends near the oil inlet 9, and anti-slip pads are glued into the arc-shaped grooves 4. The anti-slip pads are made of nitrile rubber, which has oil-resistant and wear-resistant properties, enhancing the clamping stability between the clamping plates 3 and the transformer bushing, and preventing damage to the outer wall of the bushing.

[0018] When using this utility model, the operator holds the handle 7 and pulls it inward, causing the rotating rod 12 to rotate. The torsion spring 13 stores force, and the clamping plate 3 opens accordingly. The oil filling nozzle 9 is aligned with the oil filling port of the transformer bushing and inserted. The handle 7 is released, the torsion spring 13 returns to its original position, and the rotating rod 12 rotates in the opposite direction. The clamping plate 3 clamps the bushing, and the anti-slip pad is in close contact with the outer wall of the bushing to achieve fixation. Multiple oil injection nozzles 9 are inserted sequentially into the corresponding bushing oil replenishment ports and fixed using a clamping mechanism. Then, the liquid pump 2 is started. The insulating oil in the oil storage tank 1 is pressurized by the liquid pump 2 and enters the oil injection nozzles 9 through the oil delivery hose 5 and connecting pipe 8, and finally injected into the transformer bushing, realizing synchronous oil replenishment of multiple bushings. After replenishing the oil to the specified level, the liquid pump 2 is turned off. The handle 7 is pulled again to loosen the clamp 3, pull out the oil injection nozzles 9, and close the transformer bushing oil replenishment port, completing the oil replenishment operation.

[0019] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A transformer bushing oil replenishment device, comprising an oil storage tank (1) and a plurality of oil injection nozzles (9), characterized in that, Each of the multiple oil injection nozzles (9) is fixedly fitted with a fixing plate (6), and each of the multiple fixing plates (6) is provided with a clamping mechanism for clamping the transformer bushing. The clamping mechanism includes grooves (11) opened at both ends of the fixing plate (6). Rotating rods (12) are rotatably connected between the inner walls of the two ends of the two grooves (11). Fixing blocks (10) are fixedly fitted on each of the two rotating rods (12). Symmetrical clamping plates (3) are fixedly connected to the ends of the two fixing blocks (10). Handles (7) are fixedly connected to the ends of the two clamping plates (3). The rotating connection between the rotating rods (12) and the grooves (11) is elastically connected by torsion springs (13). A liquid supply mechanism for supplying liquid to the oil injection nozzles (9) is provided at the upper end of the oil storage tank (1).

2. The transformer bushing oil replenishment device according to claim 1, characterized in that, The liquid supply mechanism includes a liquid pump (2) fixedly connected to the upper end of the oil storage tank (1), and the output end of the liquid pump (2) is fixedly connected to an oil delivery hose (5), which is a corrugated pipe.

3. The transformer bushing oil replenishment device according to claim 2, characterized in that, The end of the oil nozzle (9) is equipped with a connecting pipe (8), which is connected to the oil delivery hose (5).

4. The transformer bushing oil replenishment device according to claim 3, characterized in that, Each of the handles (7) is fitted with an anti-slip sleeve, and the anti-slip sleeve is made of rubber.

5. A transformer bushing oil replenishment device according to claim 4, characterized in that, Each of the clamps (3) has an arc-shaped groove (4) at one end near the oil nozzle (9), and each of the arc-shaped grooves (4) is provided with an anti-slip pad.

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