Filling and coating system for inner cavity of corrugated oil tank of transformer

By adjusting the position of the drain pipe and the piston blockage, combined with the drive structure and clamping mechanism, the problem of paint splashing was solved, achieving uniform coating of the transformer tank cavity and effective utilization of materials.

CN223988686UActive Publication Date: 2026-03-13GUOCHUANG POWER (TIANJIN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing transformer tank inner cavity coating devices are prone to splashing paint during injection, leading to environmental pollution and paint waste.

Method used

The position of the drain pipe is adjusted by the lead screw body, and the piston body and the limit ring cooperate to block the drain pipe. Combined with the drive structure and clamping mechanism, the oil tank angle is adjusted and the paint liquid is controlled to avoid splashing.

Benefits of technology

It achieves uniform coating of paint, avoids splashing and waste, and improves the cleanliness of the working environment and the utilization rate of materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of transformer oil tank processing, in particular to a filling and coating system for an inner cavity of a corrugated oil tank of a transformer, which comprises a driving structure, a fixing plate and a drain pipe, the fixing plate is arranged on one side of the outer wall of the upper end of the driving structure, and a supporting column is mounted on one side of the outer wall of the upper end of the fixing plate. A lead screw body is installed on the outer wall of one side of the supporting column, a supporting rod is installed on the outer wall of one side of the lead screw body, a liquid discharging pipe is installed on the outer wall of one end of the supporting rod, a connecting plate is arranged on the outer wall of the lower end of the liquid discharging pipe, a fixing rod is installed on one side of the outer wall of the upper end of the connecting plate, and a piston body is installed on the outer wall of the upper end of the fixing rod. The paint liquid can be directly discharged to the lower end of the interior of the transformer oil tank, paint liquid splashing is avoided through shielding of the transformer oil tank, pollution of the paint liquid to the working environment is avoided, and paint liquid waste is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of transformer tank processing technology, specifically to a coating system for the inner cavity of a transformer corrugated tank. Background Technology

[0002] Transformer corrugated oil tank inner cavity coating is a process specifically designed to improve the corrosion resistance of the transformer oil tank interior. The process flow of the inner cavity coating system includes pretreatment, pickling and phosphating treatment, cleaning and drying, injection of single-component epoxy iron oxide red paint, raising and draining excess paint, external powder coating treatment, and two-component epoxy iron oxide red paint spraying. The single-component epoxy iron oxide red paint injection mechanism involves injecting paint into the oil tank interior and coating the inner cavity with the paint, thereby protecting the inner cavity of the oil tank.

[0003] While existing coating devices offer numerous advantages during use, they still suffer from several drawbacks. The injection of paint is not precise enough; because the injection position inside the tank cannot be adjusted, some paint splashes when poured directly into the tank, causing pollution to the working environment and wasting paint. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a coating system for the inner cavity of a transformer corrugated oil tank.

[0005] The technical solution adopted by this utility model to solve its technical problem is a coating system for the inner cavity of a transformer corrugated oil tank.

[0006] By adopting the above technical solution, the lead screw body can support the vertical movement of the rod, adjust the position of the drain pipe, and the piston body, together with the limit ring, can block the inside of the drain pipe.

[0007] Specifically, a support plate is rotatably mounted between the drive structures, and a material receiving plate is rotatably mounted on one side of the upper outer wall of the support plate. Clamping mechanisms are installed on both sides of the upper outer wall of the material receiving plate.

[0008] By adopting the above technical solution, the external hoisting device hoists the transformer oil tank to the upper end of the material receiving plate, and the clamping structure can clamp and fix the transformer oil tank. The drive structure can drive the support plate, support plate and transformer oil tank to rotate in a circle. The material receiving plate can rotate in a circle through the matching drive motor, thereby adjusting the operating angle of the transformer oil tank.

[0009] Specifically, the fixing plate has bolts arranged in a rectangular array inside, and the fixing plate is connected to the driving structure through the bolts.

[0010] By adopting the above technical solution, the bolts are used to fix the fixing plate, keeping the fixing plate in a stable position at the upper end of the drive structure.

[0011] Specifically, an infusion tube is installed on one side of the upper outer wall of the support rod, one end of which is connected to the drain tube, and the infusion tube and the drain tube are internally connected.

[0012] By adopting the above technical solution, the infusion pipe is connected to an external paint pump, which can pressurize and deliver the paint liquid into the infusion pipe, and achieve the purpose of filling the transformer tank with paint liquid through the drain pipe.

[0013] Specifically, top columns are installed at the four corners of the lower outer wall of the connecting plate, and the lower outer wall of the top columns is designed in a conical shape.

[0014] By adopting the above technical solution, the top column can keep the connection plate in a stable position inside the transformer tank, and the top column can also keep the connection plate in a stable position during use.

[0015] Specifically, a limiting ring is installed on one side of the lower end of the inner wall of the drain pipe, the piston body is located inside the drain pipe, and the lower end face of the piston body is in contact with the upper end face of the limiting ring. There is a gap between the piston body and the inner wall of the drain pipe.

[0016] By adopting the above technical solution, the limiting ring and piston body can block the inside of the drain pipe, ensuring that the paint liquid inside the drain pipe is discharged in a controlled manner.

[0017] Specifically, a spring is provided on one side of the outer wall of the fixing rod, and the connecting plate is elastically connected to the drain pipe through the spring.

[0018] By adopting the above technical solution, the spring pushes the connecting plate, which can maintain the position of the piston body, ensure continuous contact between the piston body and the limiting ring, and ensure the blockage state inside the drain pipe.

[0019] The beneficial effects of this utility model are:

[0020] (1) The present invention provides a coating system for the inner cavity of a transformer corrugated oil tank. The drive structure can drive the support plate, the support plate and the transformer oil tank to rotate in a circular motion. The material receiving plate can rotate in a circular motion through the matching drive motor, thereby adjusting the operating angle of the transformer oil tank, ensuring that the paint liquid inside the transformer oil tank can move, and that the paint liquid inside the transformer oil tank can be poured and shaken, thus ensuring the uniformity of the paint liquid coating on the inner wall of the transformer oil tank.

[0021] (2) The coating system for the inner cavity of the corrugated oil tank of the present invention allows the paint liquid inside the drain pipe to be discharged through the gap between the piston body and the drain pipe, so that the paint liquid can be directly discharged to the lower end of the transformer oil tank. The paint liquid is prevented from splashing by the transformer oil tank, thus preventing the paint liquid from polluting the working environment and avoiding paint liquid waste. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the external appearance of the support column structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the external appearance of the drive structure of this utility model;

[0025] Figure 3 This is a partially enlarged schematic diagram of the support column structure of this utility model;

[0026] Figure 4 This is a partial cross-sectional view of the drain pipe structure of this utility model;

[0027] Figure 5 This is an enlarged schematic diagram of the piston body structure of this utility model.

[0028] In the diagram: 1. Drive structure; 11. Support plate; 12. Material receiving tray; 13. Clamping mechanism; 2. Fixing plate; 21. Support column; 22. Lead screw body; 23. Support rod; 24. Infusion pipe; 3. Drain pipe; 31. Limiting ring; 32. Connecting plate; 33. Top column; 34. Fixing rod; 35. Piston body; 36. Spring. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0030] To save manpower and improve efficiency, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3As shown, the present invention provides a coating system for the inner cavity of a transformer corrugated oil tank, comprising a drive structure 1, a fixing plate 2, and a drain pipe 3. The fixing plate 2 is provided on one side of the upper outer wall of the drive structure 1. A support column 21 is installed on one side of the upper outer wall of the fixing plate 2. A lead screw body 22 is installed on one side of the outer wall of the support column 21. A support rod 23 is installed on one side of the outer wall of the lead screw body 22. A drain pipe 3 is installed on one end of the outer wall of the support rod 23. A connecting plate 32 is provided on the lower outer wall of the drain pipe 3. A fixing rod 34 is installed on one side of the upper outer wall of the connecting plate 32. A piston body 35 is installed on the upper outer wall of the fixing rod 34.

[0031] When in use, the lead screw body 22 can support the rod 23 to move vertically, adjust the position of the drain pipe 3, and the piston body 35, together with the limit ring 31, can block the inside of the drain pipe 3.

[0032] To adjust the machining angle of the transformer tank, for example, such as Figure 2 As shown, a support plate 11 is rotatably mounted between the drive structures 1, and a material receiving plate 12 is rotatably mounted on one side of the upper outer wall of the support plate 11. Clamping mechanisms 13 are installed on both sides of the upper outer wall of the material receiving plate 12.

[0033] In use, the external hoisting device hoists the transformer oil tank to the upper end of the material receiving plate 12, and the clamping structure can clamp and fix the transformer oil tank. The drive structure 1 can drive the support plate 11, the support plate and the transformer oil tank to rotate in a circular motion. The material receiving plate 12 can rotate in a circular motion through the matching drive motor, thereby adjusting the operating angle of the transformer oil tank.

[0034] To secure the fixing plate 2, for example, such as Figure 3 As shown, the fixing plate 2 has bolts arranged in a rectangular array inside, and the fixing plate 2 is connected to the driving structure 1 by bolts.

[0035] During use, bolts are used to fix the fixing plate 2, keeping the fixing plate 2 in a stable position at the upper end of the drive structure 1.

[0036] For paint input, exemplarily, such as Figure 1 As shown, an infusion tube 24 is installed on one side of the upper outer wall of the support rod 23. One end of the infusion tube 24 is connected to the drain tube 3, and the infusion tube 24 and the drain tube 3 are internally connected.

[0037] In use, the infusion pipe 24 is connected to an external paint pump. The paint pump can pressurize and deliver the paint into the infusion pipe 24, and through the drain pipe 3, the paint is injected into the transformer tank.

[0038] To support the connecting plate 32, for example, such as Figure 4As shown, top posts 33 are installed at the four corners of the lower outer wall of the connecting plate 32, and the lower outer wall of the top posts 33 adopts a conical shape design.

[0039] During use, the top post 33 can keep the connecting plate 32 in a stable position inside the transformer tank, and the top post 33 can also keep the connecting plate 32 in a stable position.

[0040] To block the drain pipe 3, for example, such as Figure 4 As shown, a limiting ring 31 is installed on one side of the lower end of the inner wall of the drain pipe 3. The piston body 35 is located inside the drain pipe 3, and the lower end face of the piston body 35 is in contact with the upper end face of the limiting ring 31. There is a gap between the piston body 35 and the inner wall of the drain pipe 3.

[0041] During use, the limiting ring 31 and the piston body 35 can block the inside of the drain pipe 3, ensuring that the paint inside the drain pipe 3 is discharged in a controlled manner.

[0042] To maintain the relative position of the connecting plates 32, for example, such as Figure 4 As shown, a spring 36 is provided on the outer wall of one side of the fixing rod 34, and the connecting plate 32 is elastically connected to the drain pipe 3 through the spring 36.

[0043] During use, the spring 36 pushes the connecting plate 32 to maintain the position of the piston body 35, ensuring continuous contact between the piston body 35 and the limiting ring 31, and ensuring the blockage of the inside of the drain pipe 3.

[0044] In use, the operator uses an external hoisting device to hoist the transformer oil tank to the upper end of the material receiving plate 12, and the clamping mechanism 13 can clamp and fix the transformer oil tank.

[0045] The drive structure 1 can drive the support plate 11, the support plate and the transformer oil tank to rotate in a circular motion. The material receiving plate 12 can rotate in a circular motion through the matching drive motor, thereby adjusting the operating angle of the transformer oil tank.

[0046] After the transformer tank is fixed according to the above fixing steps, the lead screw body 22 can drive the support rod 23 to move vertically, and the connecting plate 32 enters the transformer tank.

[0047] The top column 33 contacts the lower end of the inner wall of the transformer oil tank. The connecting plate 32 can overcome the elastic force of the spring 36 to drive the piston body 35 to move inside the drain pipe 3, so that the piston body 35 is disengaged from the limit ring 31. At this time, the screw body 22 stops, keeping the position of the drain pipe 3 stable, so that the piston body 35 is freed from the blockage of the drain pipe 3, ensuring that the paint liquid inside the drain pipe 3 can be discharged through the gap between the piston body 35 and the drain pipe 3, so that the paint liquid can be directly discharged to the lower end of the transformer oil tank.

[0048] An external paint pump can pressurize and deliver the paint liquid into the infusion pipe 24, and allow the paint liquid to enter the drain pipe 3, until the paint liquid can enter the transformer oil tank.

[0049] It should be noted that this utility model is a coating system for the inner cavity of a transformer corrugated oil tank. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A system for the internal lining of corrugated oil tanks for transformers, characterized in that, The utility model provides a kind of liquid discharge device, including drive structure (1), fixed plate (2) and drain pipe (3), the fixed plate (2) is provided on the outer wall of the upper end of drive structure (1) one side, support column (21) is installed on the outer wall of the upper end of fixed plate (2) one side, screw body (22) is installed on the outer wall of one side of support column (21), support rod (23) is installed on the outer wall of one side of screw body (22), drain pipe (3) is installed on the outer wall of one end of support rod (23), connecting plate (32) is provided on the outer wall of lower end of drain pipe (3), fixed rod (34) is installed on the outer wall of upper end of connecting plate (32) one side, piston body (35) is installed on the outer wall of upper end of fixed rod (34).

2. A system for the internal coating of corrugated transformer tanks according to claim 1, characterized in that, Rotary mounting is provided between the drive structure (1) support plate (11), rotary mounting is provided on the outer wall of the upper end of support plate (11) one side material receiving disc (12), clamping mechanism (13) is installed on the outer wall of both sides of the upper end of material receiving disc (12).

3. A system for the internal coating of corrugated transformer tanks according to claim 1, characterized in that, The fixed plate (2) is provided with bolts in a rectangular array inside, and the fixed plate (2) is connected with the drive structure (1) by the bolts.

4. A system for the internal coating of corrugated transformer tanks according to claim 1, characterized in that, The outer wall of the upper end of the support rod (23) is provided with an infusion tube (24), one end of the infusion tube (24) is connected with the drain pipe (3), and the infusion tube (24) and the drain pipe (3) are connected inside.

5. A system for the internal coating of corrugated transformer tanks according to claim 1, characterized in that, The connecting plate (32) is provided with a jacking column (33) at the four corners of the lower end of the outer wall, and the lower end of the outer wall of the jacking column (33) is designed in a conical shape.

6. A system for the internal coating of corrugated transformer tanks according to claim 1, characterized in that, The inner wall of the drain pipe (3) is provided with a limiting ring (31) on one side of the lower end, the piston body (35) is located inside the drain pipe (3), and the lower end surface of the piston body (35) is in contact with the upper end surface of the limiting ring (31), and the piston body (35) and the inner wall of the drain pipe (3) have a gap.

7. A system for the internal coating of corrugated transformer tanks according to claim 1, characterized in that, The outer wall of one side of the fixed rod (34) is provided with a spring (36), and the connecting plate (32) is elastically connected between the drain pipe (3) by the spring (36).