A leakage-proof end cover for a transformer oil tank
By using side plates and connecting plates at the gaps in the transformer tank and tank end cover, and by installing a sealing strip on the top of the tank, the oil leakage problem was solved and the sealing performance was enhanced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU XUXIANG TRANSFORMER CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-06-26
AI Technical Summary
The gaps between the existing transformer oil tank and the tank end cover are not sealed with sealing strips, resulting in frequent oil leakage.
Side fasteners and connecting fasteners are used to fit the gaps between the transformer tank and the tank end cover, and a sealing strip is installed on the top of the tank to enhance the sealing performance.
It effectively avoids oil leakage and improves the sealing performance of the transformer tank and the gaps in the tank end cover.
Smart Images

Figure CN224417599U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of transformer oil tanks, and specifically relates to a leak-proof end cap for transformer oil tanks. Background Technology
[0002] The oil tank is the outer casing of the transformer, containing the iron core and coils and filled with transformer oil, immersing the iron core and coils in the oil. The transformer oil serves to insulate and dissipate heat.
[0003] Existing methods for installing transformer tank end covers involve securing them with multiple screws, but these methods fail to seal the gaps between the transformer tank and the end cover with sealing strips. This can lead to oil leakage during subsequent operation of the transformer tank. Therefore, a leak-proof end cover for transformer tanks is proposed. Utility Model Content
[0004] The purpose of this utility model is to overcome the problem that in the prior art, sealing strips are laid at the gap between the transformer oil tank and the oil tank end cover for sealing, which may cause oil leakage when the transformer oil tank is in operation. The present invention provides a transformer oil tank anti-leakage end cover that uses side buckles and connecting buckles to fit over the gap between the transformer oil tank and the oil tank end cover to prevent oil leakage.
[0005] To achieve the above objectives, this utility model provides a transformer tank anti-leakage end cover, including a transformer tank and an end cover. The end cover is installed and fixed on the top of the transformer tank. Side fasteners are symmetrically sleeved on the sides of the end cover and the transformer tank. Each side fastener includes a rain shield and a side plate. The side plate has a C-shaped cross-section. The side plate is sleeved on the end cover and the transformer tank. The rain shield is located on the top of the side plate and is inclined.
[0006] Preferably, the top of the tank end cover is provided with fixing screws evenly distributed, the fixing screws are screwed into the top of the transformer tank, and the fixing screws rotate through the tank end cover and the top of the transformer tank.
[0007] Preferably, the side plate has protruding structures extending from both ends, and the protruding structures of the side plate are provided with limiting rails symmetrically arranged vertically.
[0008] Preferably, a connecting plate is provided between the side plates. The connecting plate has the same shape as the side plates and is sleeved on the oil tank end cover and the transformer oil tank. The connecting plate seals the gaps.
[0009] Preferably, both ends of the connecting plate are inserted into the side plate, and both ends of the connecting plate are movably sleeved on the limiting rail.
[0010] Preferably, electrode plates are evenly distributed on the outer surface of the transformer tank.
[0011] Preferably, the end cover of the oil tank is provided with a sealing groove, and the top of the transformer oil tank is provided with a sealing strip, which is inserted into the sealing groove.
[0012] Preferably, limiting plates are symmetrically provided on both sides of the sealing strip, and the limiting plates are located at the top of the transformer oil tank.
[0013] The beneficial effects of this utility model are:
[0014] This utility model utilizes side buckle plates and connecting buckle plates to fit over the gap between the transformer oil tank and the tank end cover, preventing oil leakage. This solves the problem mentioned in the background art where sealing strips were laid over the gap between the transformer oil tank and the tank end cover for sealing, but oil leakage may still occur during subsequent operation of the transformer oil tank. Furthermore, a sealing strip is installed on the top of the transformer oil tank, and the sealing strip is inserted into the sealing groove, further improving the sealing performance of the gap between the transformer oil tank and the tank end cover. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the transformer oil tank anti-leakage end cover of this utility model.
[0016] Figure 2 This is a structural diagram of the side buckle plate in the transformer oil tank anti-leakage end cover of this utility model.
[0017] Figure 3 This is a structural diagram of the oil tank end cover in the transformer oil tank anti-leakage end cover of this utility model.
[0018] Figure 4 This is a diagram showing the internal structure of the oil tank end cover in the transformer oil tank anti-leakage end cover of this utility model.
[0019] In the diagram: 1. Transformer oil tank; 2. Oil tank end cover; 3. Side buckle plate; 4. Rain shield; 5. Side plate; 6. Fixing screw; 7. Limit rail; 8. Connecting buckle plate; 9. Electrode plate; 10. Sealing groove; 11. Sealing strip; 12. Limit plate. Detailed Implementation
[0020] The following is in conjunction with the appendix Figure 1-4 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0021] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, specific orientation structure, or operation. Therefore, they should not be construed as limitations on this utility model. Example 1
[0022] like Figure 1 , Figure 2 and Figure 3 As shown in the figure, this embodiment provides a leak-proof end cover for a transformer oil tank 1.
[0023] This embodiment includes a transformer oil tank 1 and an oil tank end cover 2. The oil tank end cover is installed and fixed on the top of the transformer oil tank 1. The top of the oil tank end cover 2 is evenly distributed with fixing screws 6. The fixing screws 6 are screwed into the top of the transformer oil tank 1 and rotate through the top of the oil tank end cover 2 and the top of the transformer oil tank 1. The sides of the oil tank end cover 2 and the transformer oil tank 1 are symmetrically fitted with side buckles 3. The side buckles 3 include a rain shield 4 and a side plate 5. The side plate 5 has a C-shaped cross-section. The side plate 5 is fitted onto the oil tank end cover 2 and the transformer oil tank 1. The rain shield 4 is located on the top of the side plate 5 and is inclined. The two ends of the side plate 5 have protruding structures. The protruding structures of the side plate 5 are symmetrically provided with limiting rails 7.
[0024] Specifically, a connecting plate 8 is provided between the side plates 5. The connecting plate 8 has the same shape as the side plates 5 and is sleeved on the oil tank end cover 2 and the transformer oil tank 1.
[0025] Specifically, the two ends of the connecting plate 8 are inserted into the side plate 5, and the two ends of the connecting plate 8 are moved and sleeved on the limiting rail 7.
[0026] Specifically, electrode plates 9 are evenly distributed on the outer surface of the transformer oil tank 1.
[0027] In this embodiment, the side plate 5 and the connecting plate 8 are fitted into the gap between the transformer oil tank 1 and the oil tank end cover 2. The side plate 5 and the connecting plate 8 are used to cover the gap to prevent oil leakage and to prevent external influence on the gap. Example 2
[0028] like Figure 1 and Figure 4 As shown, this embodiment provides a leak-proof end cover for a transformer oil tank 1. Compared with the first embodiment, in this embodiment, the end cover 2 of the oil tank is provided with a sealing groove 10, and the top of the transformer oil tank 1 is provided with a sealing strip 11. The sealing strip 11 is inserted into the sealing groove 10, and the sealing strip 11 is symmetrically provided with limiting plates 12 on both sides. The limiting plates 12 are located on the top of the transformer oil tank 1.
[0029] In this embodiment, a sealing groove 10 is provided inside the oil tank end cover 2. The sealing strip 11 on the transformer oil tank 1 is inserted into the sealing groove, and the deformation of the sealing strip 11 fills the sealing groove 10, thereby enhancing the connection and sealing between the transformer oil tank 1 and the oil tank end cover 2.
[0030] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.
Claims
1. A leakage-proof end cover for a transformer oil tank (1), comprising a transformer oil tank (1) and an oil tank end cover (2) fixedly installed on the top of the transformer oil tank (1), characterized in that, The side of the oil tank end cover (2) and the transformer oil tank (1) are symmetrically fitted with side buckles (3). The side buckles (3) include a rain shield (4) and a side plate (5). The side plate (5) has a C-shaped cross section. The side plate (5) is fitted onto the oil tank end cover (2) and the transformer oil tank (1). The rain shield (4) is located on the top of the side plate (5) and is inclined.
2. The anti-leakage end cover of the transformer oil tank (1) according to claim 1, characterized in that, The top of the oil tank end cover (2) is provided with evenly distributed fixing screws (6). The fixing screws (6) are screwed into the top of the transformer oil tank (1). The fixing screws (6) rotate through the top of the oil tank end cover (2) and the top of the transformer oil tank (1).
3. The anti-leakage end cover of the transformer oil tank (1) according to claim 1, characterized in that, The side plate (5) has protruding structures extending from both ends, and the protruding structures of the side plate (5) are provided with limiting rails (7) symmetrically arranged above and below.
4. The anti-leakage end cover of the transformer oil tank (1) according to claim 3, characterized in that, A connecting plate (8) is provided between the side plates (5). The connecting plate (8) has the same shape as the side plates (5). The connecting plate (8) is sleeved on the oil tank end cover (2) and the transformer oil tank (1).
5. The anti-leakage end cover of the transformer oil tank (1) according to claim 4, characterized in that, The two ends of the connecting plate (8) are inserted into the side plate (5), and the two ends of the connecting plate (8) are moved and sleeved on the limiting rail (7).
6. The anti-leakage end cover of the transformer oil tank (1) according to claim 1, characterized in that, The transformer tank (1) is provided with electrode plates (9) evenly distributed on the outer side surface.
7. The anti-leakage end cover of the transformer oil tank (1) according to claim 1, characterized in that, The oil tank end cover (2) is provided with a sealing groove (10), and the transformer oil tank (1) is provided with a sealing strip (11) on the top, and the sealing strip (11) is inserted into the sealing groove (10).
8. The anti-leakage end cover of the transformer oil tank (1) according to claim 7, characterized in that, The sealing strip (11) is symmetrically provided with limiting plates (12) on both sides, and the limiting plates (12) are located on the top of the transformer oil tank (1).