Oil tank structure with leakage-proof function
By designing a leak-proof mechanism on the transformer oil tank, and utilizing the cooperation of the operating block, slot, adjusting block and sealing ring, the oil leakage problem caused by loose flange connection is solved, thus achieving stable operation of the transformer and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG RUIXUN PRECISION MASCH CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-05
AI Technical Summary
During use, existing transformer oil tanks experience oil leakage due to bolt and nut vibration causing flanges to loosen, resulting in wear on the connection parts and affecting the normal operation of the transformer and equipment safety.
A leak-proof mechanism was designed, including an operating block, a slot, an adjusting block, a stop block, and a sealing ring. Through the cooperation of snap-fit and spring, it ensures that the flange end face fits tightly, improves the sealing performance, and prevents oil leakage.
This effectively prevents oil leakage at the flange connection, ensuring the normal use of the transformer and the safe operation of the equipment.
Smart Images

Figure CN224203929U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transformer oil tanks, specifically an oil tank structure with leak-proof function. Background Technology
[0002] The transformer oil tank is the installation base for the transformer oil conservator. It is a pressure vessel constructed by welding steel plates. The oil conservator is installed horizontally on top of the tank to adjust the oil level. The oil conservator adopts a capsule-type, diaphragm-type, or corrugated structure, which can effectively isolate the oil from contact with air and slow down the deterioration of the oil quality. The oil tank and the oil conservator are connected by metal pipes, and a gas relay is installed between them to realize fault detection.
[0003] To facilitate future maintenance of the gas relay, existing metal pipes have flanges at one end of both metal pipes in the gas relay fixed to the equipment with bolts and nuts. However, existing transformer oil tanks still have the following problems in use:
[0004] When existing transformers are in operation, the bolts and nuts may loosen due to vibration, causing the gap between the flanges to widen. The moving flanges impact the bolts and nuts during shaking, causing wear and damage to the fasteners. This leads to oil leakage at the connection between the two flanges, which not only affects the normal use of the transformer but also poses a potential threat to the safe operation of the equipment. Therefore, it is necessary to use a leak-proof oil tank structure in the field of existing transformer oil tanks. Summary of the Invention
[0005] To address the shortcomings of existing technologies, such as the problem that oil leakage in existing transformers affects their normal use and poses a potential threat to the safe operation of equipment, this utility model proposes an oil tank structure with anti-leakage function.
[0006] The technical solution adopted by this utility model to solve its technical problem is: an oil tank structure with anti-leakage function, comprising:
[0007] The transformer includes a transformer oil tank, on which a support base is fixedly mounted, on which an oil conservator is fixedly mounted, on which a delivery pipe is fixedly mounted, and on which an input pipe is fixedly mounted, with a first square flange fixedly mounted at one end of both the input pipe and the delivery pipe.
[0008] The leak-proof mechanism includes operating blocks, multiple operating blocks are fixedly assembled on a first square flange, one end of each operating block is provided with a slot, an adjusting block is movably assembled on each slot, one end of each adjusting block is fixedly assembled with an installation block, and each installation block is fixedly assembled with a stop block, the stop block is located on the outside of the first square flange, both ends of the stop block are provided with inclined bevels, each stop block is provided with an assembly groove, and each stop block is symmetrically provided with sealing grooves, the sealing grooves are located on both sides of the assembly groove.
[0009] Preferably, the operating block has traction ports on both symmetrical sides, and the traction ports are connected to the slots. The surface of the operating block has a first locking hole and a second locking hole, and both the first locking hole and the second locking hole are connected to the slots.
[0010] Preferably, sliding blocks are fixedly mounted on both symmetrical sides of the adjusting block, and the sliding blocks are movably assembled with the traction port.
[0011] Preferably, each of the adjusting blocks has an internal cavity, and each internal cavity is fixedly fitted with a telescopic spring. Each telescopic spring has a push plate fixedly fitted at one end, and each push plate has a telescopic button fixedly fitted on it.
[0012] Preferably, the telescopic button moves through the adjusting block, and one end of the telescopic button engages with only one of the first and second locking holes.
[0013] Preferably, a second square flange is fitted on one side of the first square flange of the conveying pipe and on one side of the first square flange of the input pipe. A connecting pipe is fitted on the second square flange. A gas relay is fixedly fitted between the two connecting pipes. A safety gas tube is fixedly fitted on the gas relay. A fixing frame is fixedly fitted on both the first and second square flanges. A sealing ring is fixedly fitted on the side of the fixing frame. The sealing ring is engaged with the sealing groove of the stop block.
[0014] Preferably, both the second square flange and the first square flange are provided with mounting holes, which are located inside the fixing frame. The mounting holes on the first square flange and the second square flange are fitted with bolts, and nuts are threaded onto the bolts.
[0015] Preferably, a plurality of first flow pipes are fixedly installed on the upper side of the transformer oil tank, and a plurality of second flow pipes are fixedly installed on the lower side of the transformer oil tank. A plurality of metal heat sinks are fixedly installed between the first flow pipes and the second flow pipes, and both the first flow pipes and the second flow pipes are connected to the interior of the transformer oil tank.
[0016] The advantages of this utility model are:
[0017] This invention allows the first locking hole to move on the slot of the operating block, causing the sliding block to move on the traction port. The first locking hole drives the stop block on the mounting block to move, so that the assembly groove fits against the end faces of the first square flange and the second square flange. The inclined edges at both ends of each stop block fit tightly, and the sealing ring engages with the sealing groove of the stop block, thereby improving the sealing between the stop blocks and preventing the formation of a funnel. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the assembly structure of the transformer oil tank and the leak-proof mechanism of this utility model;
[0020] Figure 2 This is a schematic diagram of the assembly structure of the transformer oil tank and the leak-proof mechanism of this utility model;
[0021] Figure 3 This is a schematic diagram of the gas relay structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the leak-proof mechanism and the assembly structure of the second square flange of this utility model;
[0023] Figure 5 This is a cross-sectional view of the leak-proof mechanism of this utility model.
[0024] In the picture:
[0025] 10. Transformer oil tank; 11. First flow pipe; 12. Second flow pipe; 13. Metal heat sink;
[0026] 20. Support base; 21. Oil tank; 22. Delivery pipe; 23. Input pipe;
[0027] 30. First square flange; 31. Second square flange; 32. Safety air pipe; 33. Fixing frame;
[0028] 40. Sealing ring; 41. Sliding block; 42. Mounting hole; 43. Connecting pipe;
[0029] 50. Gas relay; 51. Bolt; 52. Nut;
[0030] 53. Leak-proof mechanism; 5300. Operating block; 5301. Slot; 5302. Traction port; 5303. First locking hole; 5304. Second locking hole; 5305. Adjusting block; 5306. Inner cavity; 5307. Telescopic spring; 5308. Push plate; 5309. Telescopic button; 5310. Mounting block; 5311. Stop block; 5312. Assembly slot; 5313. Inclined bevel; 5314. Sealing slot. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0032] The following is in conjunction with the appendix Figure 1 —5 provides further detailed description of this application.
[0033] This application discloses an oil tank structure with leak-proof function. (Refer to...) Figure 1 and Figure 2 and Figure 4 as well as Figure 5 A leak-proof oil tank structure includes a transformer oil tank 10, a support base 20 fixedly mounted on the transformer oil tank 10, an oil storage tank 21 fixedly mounted on the support base 20, a delivery pipe 22 fixedly mounted on the oil storage tank 21, an input pipe 23 fixedly mounted on the transformer oil tank 10, and a first square flange 30 fixedly mounted at one end of both the input pipe 23 and the delivery pipe 22. A leak-proof mechanism 53 is mounted on each of the first square flanges 30. The leak-proof mechanism 53 includes operating blocks 5300, multiple operating blocks 5300 fixedly mounted on the first square flanges 30, a slot 5301 provided at one end of each operating block 5300, traction ports 5302 communicating with the slots 5301 on both symmetrical sides of each operating block 5300, and first locking holes 53 on the surface of each operating block 5300. 03. The surface of the operating block 5300 is provided with a second locking hole 5304. The first locking hole 5303 and the second locking hole 5304 are connected to the slot 5301. The slot 5301 is movably equipped with an adjusting block 5305. The two symmetrical sides of the adjusting block 5305 are fixedly equipped with sliding blocks 41 that move in the traction port 5302. One end of the adjusting block 5305 is fixedly equipped with an installation block 5310. The installation block 5310 is fixedly equipped with a stop block 5311. The stop block 5311 is located outside the first square flange 30. Both ends of the stop block 5311 are provided with inclined sides 5313. The stop block 5311 is provided with an assembly groove 5312. The stop block 5311 is symmetrically provided with sealing grooves 5314. The sealing grooves 5314 are located on both sides of the assembly groove 5312.
[0034] In this utility model, the first locking hole 5303 moves on the slot 5301 of the operating block 5300, causing the sliding block 41 to move on the traction port 5302. The first locking hole 5303 drives the stop block 5311 on the mounting block 5310 to move, so that the assembly groove 5312 fits against the end face of the first square flange 30. The inclined sides 5313 at both ends of each stop block 5311 fit tightly, thereby improving the sealing between the stop blocks 5311 and preventing the formation of a funnel.
[0035] Reference Figure 5 Each adjusting block 5305 has an inner cavity 5306. Each inner cavity 5306 is fixedly fitted with a telescopic spring 5307. Each end of each telescopic spring 5307 is fixedly fitted with a push plate 5308. Each push plate 5308 is fixedly fitted with a telescopic button 5309. The telescopic button 5309 moves through the adjusting block 5305, and each end of the telescopic button 5309 engages with only one of the first locking hole 5303 and the second locking hole 5304.
[0036] In this invention, the adjusting block 5305 moves on the slot 5301, and under the action of the telescopic spring 5307, the telescopic button 5309 engages with one of the first locking holes 5303 and the second locking hole 5304. At this time, the stability between the adjusting block 5305 and the operating block 5300 is improved.
[0037] Reference Figures 1-3 A second square flange 31 is fitted on one side of the first square flange 30 of the conveying pipe 22 and on one side of the first square flange 30 of the input pipe 23. A connecting pipe 43 is fitted on each of the second square flanges 31. A gas relay 50 is fixedly fitted between the two connecting pipes 43. A safety gas tube 32 is fixedly fitted on each gas relay 50. A fixing frame 33 is fixedly fitted on both the first square flange 30 and the second square flange 31. A sealing ring 40 is fixedly fitted on the side of each fixing frame 33. The sealing ring 40 is engaged with the sealing groove 5314 of the stop block 5311. The second square flange 31 and the first square flange 31 are connected together. Mounting holes 42 are provided on the flange 30. The mounting holes 42 are located inside the fixing frame 33. The mounting holes 42 on the first square flange 30 and the mounting holes 42 on the second square flange 31 are equipped with bolts 51. Nuts 52 are threaded onto the bolts 51. Multiple first flow pipes 11 are fixedly mounted on the upper side of the transformer oil tank 10. Multiple second flow pipes 12 are fixedly mounted on the lower side of the transformer oil tank 10. Multiple metal heat sinks 13 are fixedly mounted between the first flow pipes 11 and the second flow pipes 12. The first flow pipes 11 and the second flow pipes 12 are connected to the interior of the transformer oil tank 10.
[0038] In this utility model, the second square flange 31 at one end of the connecting pipe 43 on the gas relay 50 is respectively attached to the two first square flanges 30. Bolts 51 are installed on the mounting holes 42 on the first square flange 30 and the mounting holes 42 on the second square flange 31, and nuts 52 are installed on the bolts 51 to fix the first square flange 30 and the second square flange 31. The first flow pipe 11 and the second flow pipe 12 are both connected to the inside of the transformer oil tank 10, so that the oil flows inside the first flow pipe 11 and the second flow pipe 12. Under the action of wind, the metal heat sink 13 can cool the oil inside the first flow pipe 11 and the second flow pipe 12, thereby circulating and cooling the oil in the transformer oil tank 10.
[0039] Working principle: The second square flange 31 at one end of the connecting pipe 43 on the gas relay 50 is respectively fitted to the two first square flanges 30. Bolts 51 are installed in the mounting holes 42 on the first square flange 30 and the mounting holes 42 on the second square flange 31, and nuts 52 are installed on the bolts 51 to fix the first square flange 30 and the second square flange 31 together. The adjusting block 5305 moves in the slot 5301. Under the action of the telescopic spring 5307, the telescopic button 5309 enters one of the first locking holes 5303 and the second locking hole 5304. When the locking mechanism is engaged, the stability between the adjusting block 5305 and the operating block 5300 is improved. The sliding block 41 moves on the traction port 5302, and the first locking hole 5303 drives the stop block 5311 on the mounting block 5310 to move, so that the assembly groove 5312 fits the end faces of the first square flange 30 and the second square flange 31. The inclined edges 5313 at both ends of each stop block 5311 fit tightly, and at the same time, the sealing ring 40 engages with the sealing groove 5314 of the stop block 5311, thereby improving the sealing between the stop blocks 5311 and preventing the device from having a funnel.
[0040] 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 embodiments and descriptions in the specification 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 the claimed utility model.
Claims
1. A tank structure with leak-proof function, characterized in that: include: The transformer includes a transformer oil tank (10), on which a support base (20) is fixedly mounted, on which an oil storage tank (21) is fixedly mounted, on which a delivery pipe (22) is fixedly mounted, on which an input pipe (23) is fixedly mounted, and on which a first square flange (30) is fixedly mounted at one end of both the input pipe (23) and the delivery pipe (22). Leakage prevention mechanism (53), the leakage prevention mechanism (53) includes operating blocks (5300), multiple operating blocks (5300) are fixedly assembled on the first square flange (30), one end of each operating block (5300) is provided with a slot (5301), each slot (5301) is movably assembled with an adjusting block (5305), one end of each adjusting block (5305) is fixedly assembled with an installation block (5310), each installation block (5310) is fixedly assembled with a stop block (5311), the stop block (5311) is located on the outside of the first square flange (30), both ends of the stop block (5311) are provided with inclined sides (5313), each stop block (5311) is provided with an assembly groove (5312), each stop block (5311) is symmetrically provided with a sealing groove (5314), the sealing groove (5314) is located on both sides of the assembly groove (5312).
2. The oil tank structure with leak-proof function according to claim 1, characterized in that: The operation block (5300) has traction ports (5302) on both symmetrical sides, and the traction ports (5302) are connected to the slots (5301). The surface of the operation block (5300) is provided with a first card hole (5303) and a second card hole (5304), and the first card hole (5303) and the second card hole (5304) are connected to the slots (5301).
3. The oil tank structure with leak-proof function according to claim 2, characterized in that: The adjusting block (5305) has a sliding block (41) fixedly mounted on both symmetrical sides, and the sliding block (41) is movably mounted to the traction port (5302).
4. The oil tank structure with leak-proof function according to claim 3, characterized in that: Each of the adjusting blocks (5305) has an inner cavity (5306) inside, and each inner cavity (5306) is fixedly fitted with a telescopic spring (5307). Each end of the telescopic spring (5307) is fixedly fitted with a push plate (5308), and each push plate (5308) is fixedly fitted with a telescopic button (5309).
5. The oil tank structure with leak-proof function according to claim 4, characterized in that: The telescopic button (5309) moves through the adjusting block (5305), and one end of the telescopic button (5309) engages with only one of the first locking hole (5303) and the second locking hole (5304).
6. The oil tank structure with leak-proof function according to claim 1, characterized in that: A second square flange (31) is fitted on one side of the first square flange (30) of the conveying pipe (22) and on one side of the first square flange (30) of the input pipe (23). A connecting pipe (43) is fitted on the second square flange (31). A gas relay (50) is fixedly fitted between the two connecting pipes (43). A safety gas pipe (32) is fixedly fitted on the gas relay (50). A fixing frame (33) is fixedly fitted on the first square flange (30) and the second square flange (31). A sealing ring (40) is fixedly fitted on the side of the fixing frame (33). The sealing ring (40) is engaged with the sealing groove (5314) of the stop block (5311).
7. The oil tank structure with leak-proof function according to claim 6, characterized in that: Both the second square flange (31) and the first square flange (30) are provided with mounting holes (42). The mounting holes (42) are located inside the fixed frame (33). The mounting holes (42) on the first square flange (30) and the mounting holes (42) on the second square flange (31) are equipped with bolts (51). The bolts (51) are threaded with nuts (52).
8. The oil tank structure with leak-proof function according to claim 1, characterized in that: The upper side of the transformer tank (10) is fixedly equipped with a plurality of first flow pipes (11), and the lower side of the transformer tank (10) is fixedly equipped with a plurality of second flow pipes (12). A plurality of metal heat sinks (13) are fixedly installed between the first flow pipes (11) and the second flow pipes (12). The first flow pipes (11) and the second flow pipes (12) are both connected to the interior of the transformer tank (10).