Tank cover of transformer oil tank

Abstract

The utility model relates to the technical field of transformers, in particular to a transformer oil tank cover which comprises a tank body, a cover body is movably connected to the top of the tank body, an installation block is fixedly connected to the top of the cover body, and a sliding rod is slidably connected to the interior of the installation block in a penetrating mode. The bottom end, extending into the box body, of the sliding rod is fixedly connected with a base, the side wall of the base is fixedly connected with a rotating seat A, the interior of the rotating seat A is rotationally connected with a connecting rod A, and the two ends of the bottom of the cover body are fixedly connected with rotating seats B. According to the oil tank, sealing between the cover body and the box body is enhanced through the rubber lining, and oil is prevented from being soaked outwards; the cooperation of the baffle and the tension spring effectively prevents the internal oil body from shaking, the oil body is prevented from making contact with the connecting part, the linkage mechanism of the sliding rod and the pressing plate simplifies the fixing process, bolts are not needed, the assembling time and cost are reduced, the threaded rod is adjusted through the knob, the fastening degree of the sliding rod can be finely adjusted, and the use stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a box cover of a transformer oil tank. Background Art

[0002] Transformers are essential components in power systems, used for voltage conversion and electrical energy transmission. The transformer's oil tank is one of its core components, protecting the coils and core while also providing cooling and insulation. The oil tank's sealing performance is crucial to the transformer's proper operation. The oil tank cover, as the tank's sealing component, has a design and performance that directly impacts the transformer's reliability and safety.

[0003] The existing transformer oil tank cover has a relatively simple overall structure, and the opening and closing mechanism of the cover is relatively complicated, which increases the difficulty and time cost of maintenance work. As the use time gradually increases, oil overflow is prone to occur, thereby reducing the service life of the transformer. Therefore, it does not meet existing needs.

[0004] In view of this, research and improvement are carried out on the existing problems, and a transformer oil tank cover is provided to solve the problem that the opening and closing mechanism of the transformer oil tank cover is relatively complicated and inconvenient to use and oil overflow is easy to occur. The purpose is to achieve the purpose of solving the problem and improving the practical value through this technology. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a box cover for a transformer oil tank. The utility model strengthens the seal between the cover and the box body through a rubber lining to prevent the oil from seeping out of the body. The cooperation of the baffle and the tension spring effectively blocks the shaking of the internal oil body and avoids the oil body from contacting the connection part. The linkage mechanism of the sliding rod and the pressing plate simplifies the fixing process, eliminates the need for bolts, reduces assembly time and cost, and the knob adjusts the threaded rod to finely control the tightness of the sliding rod and improve the stability of use.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a box cover for a transformer oil tank, comprising a box body, the top of the box body is movably connected to the cover body, the top of the cover body is fixedly connected to a mounting block, the interior of the mounting block is slidably connected to a sliding rod, the bottom end of the sliding rod extending to the interior of the box body is fixedly connected to a base, the side wall of the base is fixedly connected to a rotating seat A, the interior of the rotating seat A is rotatably connected to a connecting rod A, the two ends of the bottom of the cover body are fixedly connected to a rotating seat B, the interior of the rotating seat B is rotatably connected to a baffle, and there is a gap between the cover body and the baffle. A tension spring is provided, and both ends of the tension spring are fixedly connected to the cover body and the baffle respectively, and the baffle is fixedly connected to a rotating seat C on the side away from the inner wall of the cover body, and one end of the connecting rod A is rotatably connected to the rotating seat C, and fixed plates are welded on both sides of the cover body, and a sliding groove is provided inside the fixed plate, and a slider is slidably connected inside the sliding groove. A plug rod is fixedly connected to one side of the slider, and a telescopic spring is sleeved on the outside of the plug rod, and a pressing plate is fixedly connected to the top of the sliding rod, and both sides of the pressing plate are rotatably connected to the slider through a connecting rod B, and a floating plate is provided inside the box body.

[0007] Optionally, one end of the bottom of the fixed plate is fixedly connected to the limiting plate, one end of the telescopic spring is fixedly connected to the limiting plate, and the other end of the telescopic spring is fixedly connected to one end of the slider.

[0008] Optionally, a slot is provided on the side wall of the box body, the outer diameter of the insertion rod is the same as the inner diameter of the slot, and the insertion rod and the slot cooperate with each other.

[0009] Optionally, an empty slot is opened inside the mounting block, an extrusion block is slidably connected inside the empty slot, one side of the extrusion block is rotatably connected to a threaded rod through a bearing, the threaded rod is threadedly connected to the mounting block, and one end of the threaded rod is fixedly connected to a knob.

[0010] Optionally, a mounting groove is provided on the top of the box body, a rubber lining is fixedly connected to the inner wall of the mounting groove, and the rubber lining and the mounting groove are bonded by glue.

[0011] Optionally, one end of the connecting rod A is fixedly connected to a rubber gasket, and the outer wall of the sliding rod is provided with scale lines.

[0012] Optionally, the number of the tension springs is set to two groups, and the two groups of tension springs are symmetrically distributed about the central axis of the baffle.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, the box cover of the transformer oil tank is inserted by aligning the lower end of the cover body with the installation groove at the upper end of the box body, so that the lower end of the cover body gradually extends into the interior of the installation groove. A rubber lining is provided inside the installation groove, and the elastic structure of the rubber lining squeezes the inner wall, thereby increasing the sealing between the cover body and the box body, avoiding the situation of oil leakage outside the box. When the cover body is installed, the pressing plate is manually pressed down to drive the sliding rod to move downward, and the sliding rod drives the base to move, so that the connecting rod A is between the rotating seat A and the rotating seat C. Under the action of the spring, the baffle is driven to retract inward, thereby facilitating the baffle to extend into the interior of the box. After it is fully entered, the baffle is lifted to the side close to the inner wall of the box under the elastic action of the tension spring, so that one end of the baffle is tightly fitted to the inner wall of the box. In this way, when the internal oil body shakes, the baffle can block the oil body, thereby preventing the oil body from contacting the connection part between the cover body and the box body, effectively preventing the oil body from seeping out. In addition, in the process of the sliding rod moving downward, the sliding rod drives the pressing plate to move downward, and the pressing plate drives the two The connecting rod B on the side moves, causing the connecting rod B to drive the slider to move inside the slide slot, thereby causing the slider to drive the insertion rod to move toward the side of the box body. Under the action of the telescopic spring, the insertion rod is inserted into the slot, thereby achieving the effect of fixing the cover body. This eliminates the need for bolts to fix the entire device, simplifying the assembly process and reducing assembly time and cost. The provision of the floating plate helps to reduce oil swaying and prevent the oil from impacting the internal structure of the box body. At the same time, the top of the floating plate touches the bottom of the base. At this time, the floating plate presses upward on the bottom of the base. As the base drives the sliding rod to move upward, the connecting rod A drives the baffle to fit more tightly against the inner wall of the box body. At the same time, the connecting rod B drives the insertion rod to be more firmly inserted into the slot, thereby improving the fixing effect of the entire device. When the tightness of the sliding rod needs to be adjusted, the operator can rotate the knob to cause the threaded rod to rotate accordingly. The threaded rod drives the extrusion block to slide in the empty slot, causing the extrusion block to squeeze the sliding rod, thereby adjusting the tightness of the sliding rod and improving the stability of the cover body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a transformer oil tank cover proposed in the utility model;

[0016] Figure 2 This is a schematic cross-sectional view of a transformer oil tank cover proposed in the present invention;

[0017] Figure 3 This is an enlarged structural diagram of part A of a transformer oil tank cover proposed in the utility model;

[0018] Figure 4 This is an enlarged structural diagram of part B of a transformer oil tank cover proposed in the utility model;

[0019] Figure 5 This is an enlarged structural diagram of part C of a transformer oil tank cover proposed in the utility model;

[0020] Figure 6 The utility model is a schematic diagram of the oblique structural view of the cover body of the transformer oil tank.

[0021] Legend:

[0022] 1. Box body; 2. Cover body; 3. Mounting block; 4. Sliding rod; 5. Base; 6. Rotating seat A; 7. Connecting rod A; 8. Rotating seat B; 9. Baffle; 10. Tension spring; 11. Rotating seat C; 12. Fixed plate; 13. Slide groove; 14. Slider; 15. Insert rod; 16. Telescopic spring; 17. Slot; 18. Press plate; 19. Connecting rod B; 20. Extrusion block; 21. Threaded rod; 22. Knob; 23. Rubber lining; 24. Scale line; 25. Floating plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Reference Figure 1-6A transformer oil tank cover includes a box body 1, a cover body 2 is movably connected to the top of the box body 1, a mounting block 3 is fixedly connected to the top of the cover body 2, a sliding rod 4 is slidably connected to the inside of the mounting block 3, the sliding rod 4 extends to the bottom end of the box body 1 and is fixedly connected to the base 5, the side wall of the base 5 is fixedly connected to a rotating seat A6, the internal rotation of the rotating seat A6 is connected to a connecting rod A7, the bottom ends of the cover body 2 are fixedly connected to a rotating seat B8, the internal rotation of the rotating seat B8 is connected to a baffle 9, a tension spring 10 is provided between the cover body 2 and the baffle 9, the two ends of the tension spring 10 are fixedly connected to the cover body 2 and the baffle 9 respectively, the side of the baffle 9 away from the inner wall of the cover body 2 is fixedly connected to the rotating seat C11, and one end of the connecting rod A7 rotates with the rotating seat C11 The cover 2 is connected with a fixed plate 12 on both sides, and a slide groove 13 is provided inside the fixed plate 12. The slide groove 13 is slidably connected to the inside of the slide groove 13. A plug rod 15 is fixedly connected to one side of the slide rod 14. A telescopic spring 16 is sleeved on the outside of the plug rod 15. A pressing plate 18 is fixedly connected to the top of the sliding rod 4. The two sides of the pressing plate 18 are rotatably connected to the slider 14 through the connecting rod B19. A floating plate 25 is provided inside the box 1. When the cover 2 is installed, the sliding rod 4 is driven downward by manually pressing the pressing plate 18, and the sliding rod 4 drives the base 5 to move, so that the connecting rod A7 drives the baffle 9 to retract inward under the action of the rotating seat A6 and the rotating seat C11, thereby facilitating the baffle 9 to extend to the inside of the box 1. , after fully entering, under the elastic action of the tension spring 10, the baffle 9 is lifted to the side close to the inner wall of the box body 1, so that one end of the baffle 9 is tightly fitted to the inner wall of the box body 1. In this way, when the internal oil body shakes, the baffle 9 can block the oil body, thereby preventing the oil body from contacting the connection part between the cover body 2 and the box body 1, effectively preventing the oil body from leaking out. In addition, in the process of the sliding rod 4 moving downward, the sliding rod 4 drives the pressing plate 18 to move downward, and the pressing plate 18 drives the connecting rods B19 on both sides to move, so that the connecting rod B19 drives the slider 14 to move inside the slide groove 13, so that the slider 14 drives the insertion rod 15 to move to one side of the box body 1, and under the action of the telescopic spring 16, the insertion rod 15 is inserted into the slot 17, from The effect of fixing the cover body 2 is achieved, so that the entire device does not need to be fixed with bolts, which simplifies the assembly process and reduces assembly time and cost. During the operation of the transformer, due to external vibrations or movement of internal components, the oil in the box body 1 will shake, and the floating plate 25 helps to reduce the shaking of the oil body and prevent the oil body from impacting the internal structure of the box body 1. At the same time, the top of the floating plate 25 touches the bottom of the base 5. At this time, the floating plate 25 presses the bottom of the base 5 upward. While the base 5 drives the sliding rod 15 to move upward, the connecting rod A7 drives the baffle 9 to fit more tightly against the inner wall of the box body 1. At the same time, the connecting rod B19 drives the insertion rod 15 to be more firmly inserted into the inside of the slot 17, thereby improving the fixing effect of the entire device.

[0026] Specifically, one end of the bottom of the fixed plate 12 is fixedly connected to the limit plate, one end of the telescopic spring 16 is fixedly connected to the limit plate, and the other end of the telescopic spring 16 is fixedly connected to one end of the slider 14. The telescopic force of the telescopic spring 16 can directly act on the slider 14, pushing the slider 14 to move in the slide groove 13, thereby realizing the opening and closing action of the cover body 2. At the same time, the elastic force of the telescopic spring 16 can provide a reset force for the slider 14, ensuring that the cover body 2 can be accurately in place when closed.

[0027] Specifically, a slot 17 is provided on the side wall of the box body 1, and the outer diameter of the insertion rod 15 is the same as the inner diameter of the slot 17. The insertion rod 15 and the slot 17 cooperate with each other, and the entire cover body 2 is fixed by inserting the insertion rod 15 into the slot 17, so that the entire device does not need to be fixed with bolts, which simplifies the assembly process and reduces assembly time and cost.

[0028] Specifically, an empty slot is provided inside the mounting block 3, and an extrusion block 20 is slidably connected inside the empty slot. A threaded rod 21 is rotatably connected to one side of the extrusion block 20 through a bearing. The threaded rod 21 is threadedly connected to the mounting block 3, and one end of the threaded rod 21 is fixedly connected to a knob 22. When it is necessary to adjust the tightness of the sliding rod 4, the operator can rotate the knob 22 to rotate the threaded rod 21. The threaded rod 21 drives the extrusion block 20 to slide in the empty slot, so that the extrusion block 20 squeezes the sliding rod 4, thereby adjusting the tightness of the sliding rod 4 and improving the stability of the cover body 2.

[0029] Specifically, a mounting groove is provided on the top of the box body 1, and a rubber lining 23 is fixedly connected to the inner wall of the mounting groove, and the rubber lining 23 is bonded to the mounting groove by glue. The rubber lining 23 can seal the gap between the cover body 2 and the box body 1, thereby improving the sealing effect of the box body 1.

[0030] Specifically, one end of the connecting rod A7 is fixedly connected to a rubber gasket, and the outer wall of the sliding rod 4 is provided with a scale line 24. The scale line 24 on the outer wall of the sliding rod 4 allows the operator to make precise adjustments and positioning, so that the maintenance personnel can adjust the position of the sliding rod 4 as needed to ensure the accurate closing and opening of the cover body 2.

[0031] Specifically, the number of tension springs 10 is set to two groups, and the two groups of tension springs 10 are symmetrically distributed about the central axis of the baffle 9. The symmetrically distributed tension springs 10 can provide a more stable force, reduce the vibration and swing of the baffle 9 during use, and thus improve the stability of the overall structure.

[0032] Working principle: During installation, align the lower end of the cover 2 with the installation slot at the upper end of the box 1 and insert it so that the lower end of the cover 2 gradually extends into the interior of the installation slot. A rubber lining 23 is provided inside the installation slot, and the elastic structure of the rubber lining 23 squeezes the inner wall, thereby increasing the sealing between the cover 2 and the box 1 and preventing oil from seeping out of the box. When the cover 2 is being installed, manually press the pressing plate 18 to drive the sliding rod 4 downward, and the sliding rod 4 drives the base 5 to move, so that the connecting rod A7, under the action of the rotating seat A6 and the rotating seat C11, drives the baffle 9 to retract inward. This makes it easier for the baffle 9 to extend into the interior of the box body 1. After it is fully inserted, the baffle 9 is lifted to the side close to the inner wall of the box body 1 under the elastic action of the tension spring 10, so that one end of the baffle 9 is tightly fitted to the inner wall of the box body 1. In this way, when the internal oil body shakes, the baffle 9 can block the oil body, thereby preventing the oil body from contacting the connection part between the cover body 2 and the box body 1, effectively preventing the oil body from seeping out. In addition, in the process of the sliding rod 4 moving downward, the sliding rod 4 drives the pressing plate 18 to move downward, and the pressing plate 18 drives the connecting rods B19 on both sides to move, so that the connecting rod B19 drives the slider 14 in the slide groove 1 3 moves inside the box body 1, so that the slider 14 drives the insertion rod 15 to move to one side of the box body 1. Under the action of the telescopic spring 16, the insertion rod 15 is inserted into the slot 17, thereby achieving the effect of fixing the cover body 2, so that the entire device does not need to be fixed with bolts, which simplifies the assembly process and reduces assembly time and cost. During the operation of the transformer, due to external vibration or movement of internal components, the oil in the box body 1 will shake, and the floating plate 25 helps to reduce the shaking of the oil and prevent the oil from impacting the internal structure of the box body 1. At the same time, the top of the floating plate 25 touches the bottom of the base 5. At this time, the floating plate 25 presses the base 5 upward. At the bottom, while the base 5 drives the sliding rod 15 to move upward, the connecting rod A7 drives the baffle 9 to fit more tightly against the inner wall of the box body 1, and also makes the connecting rod B19 drive the insertion rod 15 to be more firmly inserted into the inside of the slot 17, thereby improving the fixing effect of the entire device. When it is necessary to adjust the tightness of the sliding rod 4, the operator can rotate the knob 22 to rotate the threaded rod 21. The threaded rod 21 drives the extrusion block 20 to slide in the empty slot, so that the extrusion block 20 squeezes the sliding rod 4, thereby realizing the adjustment of the tightness of the sliding rod 4 and improving the stability of the cover body 2.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A transformer oil tank cover, comprising a tank body (1), characterized in that: The top of the box body (1) is movably connected to the cover body (2), the top of the cover body (2) is fixedly connected to the mounting block (3), the interior of the mounting block (3) is slidably connected to a sliding rod (4), the sliding rod (4) extends to the bottom end of the box body (1) and is fixedly connected to a base (5), the side wall of the base (5) is fixedly connected to a rotating seat A (6), the interior of the rotating seat A (6) is rotatably connected to a connecting rod A (7), the bottom ends of the cover body (2) are fixedly connected to a rotating seat B (8), the interior of the rotating seat B (8) is rotatably connected to a baffle (9), a tension spring (10) is provided between the cover body (2) and the baffle (9), the two ends of the tension spring (10) are fixedly connected to the cover body (2) and the baffle (9), respectively. The baffle (9) is fixedly connected to a rotating seat C (11) on one side away from the inner wall of the cover body (2), one end of the connecting rod A (7) is rotatably connected to the rotating seat C (11), and fixed plates (12) are welded on both sides of the cover body (2), a sliding groove (13) is provided inside the fixed plate (12), and a slider (14) is slidably connected inside the sliding groove (13), and an insertion rod (15) is fixedly connected to one side of the slider (14), and a telescopic spring (16) is sleeved on the outer side of the insertion rod (15), and a pressing plate (18) is fixedly connected to the top of the sliding rod (4), and both sides of the pressing plate (18) are rotatably connected to the slider (14) through the connecting rod B (19), and a floating plate (25) is provided inside the box body (1).

2. The transformer oil tank cover according to claim 1, characterized in that: One end of the bottom of the fixed plate (12) is fixedly connected to the limit plate, one end of the telescopic spring (16) is fixedly connected to the limit plate, and the other end of the telescopic spring (16) is fixedly connected to one end of the slider (14).

3. The transformer oil tank cover according to claim 1, characterized in that: A slot (17) is provided on the side wall of the box body (1), the outer diameter of the insertion rod (15) is the same as the inner diameter of the slot (17), and the insertion rod (15) and the slot (17) cooperate with each other.

4. The transformer oil tank cover according to claim 1, characterized in that: An empty slot is provided inside the mounting block (3), an extrusion block (20) is slidably connected inside the empty slot, a threaded rod (21) is rotatably connected to one side of the extrusion block (20) via a bearing, the threaded rod (21) is threadedly connected to the mounting block (3), and a knob (22) is fixedly connected to one end of the threaded rod (21).

5. The transformer oil tank cover according to claim 1, characterized in that: A mounting groove is provided on the top of the box body (1), a rubber lining (23) is fixedly connected to the inner wall of the mounting groove, and the rubber lining (23) is bonded to the mounting groove by glue.

6. The transformer oil tank cover according to claim 1, characterized in that: One end of the connecting rod A (7) is fixedly connected to a rubber gasket, and the outer wall of the sliding rod (4) is provided with a scale line (24).

7. The transformer oil tank cover according to claim 1, characterized in that: The number of the tension springs (10) is set to two groups, and the two groups of tension springs (10) are symmetrically distributed about the central axis of the baffle (9).

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