Oil-immersed power transformer with protection structure

Abstract

The invention relates to the technical field of power transformers, and discloses an oil-immersed power transformer with a protection structure, the oil-immersed power transformer comprises a protection base, the inner surface of the protection base is fixedly connected with a damper, the top end of the damper is fixedly connected with a mounting frame, and the mounting frame is internally provided with a transformer body; a first sliding rail is fixedly connected to the upper surface of the protection base, and when the transformer body deviates or vibrates, the damper can reduce the movement range of the transformer body and the mounting frame, so that the transformer body operates more stably, and the use safety of the transformer body is improved; the trapezoidal insertion blocks are inserted into the positioning grooves to clamp the trapezoidal clamping blocks and the mounting angle plates, then the transformer body is more stably mounted on the mounting frame, after the trapezoidal clamping blocks are separated from the trapezoidal insertion blocks to be locked, the transformer body and the mounting angle plates can be rapidly detached from the mounting frame, and the use convenience of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of power transformers, in particular to an oil-immersed power transformer with a protection structure. Background Art

[0002] Oil-immersed power transformers refer to transformers whose windings use insulating oil as the insulating medium. Distribution transformers are one of the important equipment in the power supply and distribution systems of industrial and mining enterprises and civil buildings. Oil-immersed power transformers need to operate in a stable environment to ensure the safe use of insulating oil. In existing devices, it is difficult to protect oil-immersed power transformers while enabling transformers to be quickly installed and disassembled, which makes it inconvenient to repair and inspect the transformers, making it difficult to detect structural damage to the transformers and reducing the service life of the transformers.

[0003] The patent with announcement number CN222071670U discloses an oil-immersed power transformer with a protective structure, which includes a power transformer main body, a protective cover and a protective tray. The protective tray is slidably connected in the protective cover, and a mounting tray and a buffer protection plate are arranged in the protective tray. The mounting tray and the buffer protection plate are connected by a connecting strut. During use, the power transformer main body can be stably installed and protected to prevent it from being accidentally hit and damaged during use, and it is convenient for it to dissipate heat, and the vibration pressure generated by the collision can be well buffered to prevent the power transformer main body from being vibrated and malfunctioning. It is also convenient to lift the power transformer main body when it is needed, thereby effectively improving the use efficiency and protection of the protected oil-immersed power transformer. Although the patent solves the above problems, it is still difficult to quickly install and disassemble the transformer, which is inconvenient for maintenance and low convenience of use. Therefore, an oil-immersed power transformer with a protective structure is proposed to solve the above problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an oil-immersed power transformer with a protection structure in view of the deficiencies in the above-mentioned prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: an oil-immersed power transformer with a protective structure, comprising a protective base, the inner surface of the protective base is fixedly connected with a damper, the top of the damper is fixedly connected with a mounting frame, the interior of the mounting frame is provided with a transformer body, the upper surface of the protective base is fixedly connected with a first slide rail, the lower surface of the transformer body is fixedly connected with a mounting angle plate by screws, the side of the mounting angle plate is fixedly connected with a trapezoidal card block, the inner side of the trapezoidal card block is provided with a positioning groove, the inner surface of the mounting frame is fixedly connected with a first slide rail, the lower surface of the transformer body is fixedly connected with a mounting angle plate by screws, the side of the mounting angle plate is fixedly connected with a trapezoidal card block, the inner side of the trapezoidal card block is provided with a positioning groove, and the inner surface of the mounting frame is fixedly connected with a first slide rail. There is a fixed block, the inner surface of the fixed block is fixedly connected with an elastic telescopic rod, the end of the elastic telescopic rod close to the trapezoidal block is fixedly connected with a trapezoidal plug-in block, the side of the trapezoidal plug-in block is fixedly connected with an L-shaped toggle rod, the lower surface of the mounting frame is fixedly connected with a triangular pressure plate, and the upper part of the protective base is provided with an insulating oil moisture-proof device for dehumidifying the surrounding of the transformer body to prevent the insulating oil in the transformer body from being damp and deteriorating, thereby affecting the insulation effect, and the upper part of the protective base is provided with a protective device for protecting the surface of the transformer body to prevent the transformer body from being damaged by impact or even The surface protection device that affects the stability of insulating oil, the installation frame is slidably connected to the inner surface of the first slide rail, the trapezoidal plug block is slidably connected to the inner surface of the fixed block, the L-shaped toggle rod is slidably connected to the inner surface of the fixed block, the transformer body is placed in the installation frame, the transformer body and the installation frame are pushed downward, so that the installation frame is clamped into the protection base, when the transformer body is offset or vibrated, the damper can reduce the activity amplitude of the transformer body and the installation frame, when the transformer body is placed in the installation frame, the transformer body drives the installation angle plate to descend, the installation angle plate drives the trapezoidal block to descend, and the trapezoidal block descends When the inclined surface contacts the inclined surface of the trapezoidal plug-in block, and the trapezoidal clamping block is guided by the inclined surface to push the trapezoidal plug-in block into the fixed block and squeeze the elastic telescopic rod 1. The trapezoidal clamping block continues to move downward so that the positioning groove is aligned with the trapezoidal plug-in block. At this time, the elastic resetting effect of the elastic telescopic rod 1 pushes the trapezoidal plug-in block to pop out of the fixed block and insert it into the positioning groove to clamp the trapezoidal clamping block and the mounting angle plate. When the transformer body needs to be removed, the L-shaped toggle rod is pushed, and the L-shaped toggle rod drives the trapezoidal plug-in block to retract into the fixed block again, so that the trapezoidal clamping block is released from the locking of the trapezoidal plug-in block, so that the transformer body and the mounting angle plate can be removed from the mounting frame.

[0006] Preferably, the insulating oil moisture-proof device includes a storage shell, a dehumidification plate, and a through groove, the storage shell is fixedly connected to the rear side surface of the inner wall of the protection base, the dehumidification plate is slidably connected to the inner surface of the storage shell, and the through groove is arranged on the front side surface of the storage shell, the insulating oil moisture-proof device also includes a first slider, a triangular slider, a guide rail, a connecting block, a second elastic telescopic rod, a second slider, and a resistance shaft, the first slider is fixedly connected to the front side surface of the dehumidification plate, the triangular slider is fixedly connected to the front side surface of the first slider, the guide rail is fixedly connected to the bottom surface of the inner wall of the protection base, the connecting block is fixedly connected to the bottom surface of the storage shell, the second elastic telescopic rod is fixedly connected to both sides of the connecting block, the second slider is fixedly connected to one end of the second elastic telescopic rod away from the first slider, the resistance shaft is arranged on both sides of the dehumidification plate, the first slider is slidably connected to the inner surface of the through groove, a silica gel dehumidifier is arranged inside the dehumidification plate, and the three The angle slide is slidably connected to the guide rail, the connecting block is fixedly connected to the rear side of the inner wall of the protective base, and the triangular slide and the front side of the second slide are fixedly connected. During the use of the transformer body, the dehumidification plate absorbs moisture around the transformer body through the internal silica gel dehumidifier. When the mounting frame descends, the triangular pressure plate is driven to descend. After the inclined surface of the triangular pressure plate contacts the inclined surface of the triangular slide, the triangular slide is pushed to slide on the guide rail and approach the side of the protective base through the guidance of the inclined surface. The triangular slide drives the first slide in the through groove to slide toward the side of the protective base. The first slide drives the dehumidification plate to extend out of the storage shell and moisture-proof the transformer body. When the triangular pressure plate rises, the triangular slide loses resistance. At this time, the elastic reset effect of the elastic telescopic rod 2 pulls the second slide close to the connecting block, and the second slide drives the triangular slides close to each other. The triangular slides then drive the dehumidification plates close to each other through the first slide and retract into the storage shell.

[0007] Preferably, the surface protection device includes a protection outer frame, a ventilation groove, a second slide rail, and a third slider, the second slide rail is fixedly connected to both sides of the inner surface of the protection base, the third slider is slidably connected to the inner surface of the second slide rail, the protection outer frame is fixedly connected to the side of the third slider away from the second slide rail, the ventilation groove is arranged on both sides of the protection outer frame, the surface protection device also includes a protection top plate, a threaded sleeve, a slide rod, a resistance inclined plate, and an L-shaped transmission plate, the protection top plate is hinged on both sides of the top of the protection outer frame, the threaded sleeve is threadedly connected to the inner surfaces of both sides of the protection outer frame, the slide rod is slidably connected to the inner surface of the threaded sleeve, the resistance inclined plate is fixedly connected to one end of the slide rod away from the dehumidification plate, the L-shaped transmission plate is fixedly connected to the side of the protection top plate away from the storage shell, the resistance shaft and the end of the slide rod close to the dehumidification plate are fixedly connected, a spring is arranged between the resistance shaft and the threaded sleeve, the inclined surface of the resistance inclined plate and the lower surface of the L-shaped transmission plate are in contact with each other, a torsion spring is arranged at the hinge of the protection top plate and the protection outer frame, and the transformer body During use, the protective frame protects the surface of the transformer body, and the heat emitted by the transformer body flows out from the ventilation slots. When the dehumidifier plate approaches the two sides of the protection base, it contacts the resistance shaft and pushes the resistance shaft close to the protective frame. The resistance shaft drives the slide bar to slide in the threaded sleeve shaft and extend out of the protective frame. The slide bar drives the resistance inclined plate to move to the side away from the protective frame. The resistance inclined plate pushes the L-shaped transmission plate to rotate along the hinge between the protective top plate and the protective frame, thereby rotating the protective top plate and closing the top of the protective frame, and the dehumidifier plate is retracted. When the protective cover is placed in the storage shell, the elastic restoring effect of the spring pushes the protective cover close to the storage shell, thereby driving the slide bar to retract into the protective outer frame, and the slide bar drives the protective inclined plate close to the protective outer frame. After the L-shaped transmission plate loses the resistance of the protective inclined plate, the elastic restoring effect of the torsion spring drives the protective top plate to rotate and reset. At this time, the threaded sleeve shaft is rotated, and the threaded sleeve shaft drives the protective inclined plate and the protective outer frame to separate from the protective outer frame through the slide bar. At this time, the protective outer frame is slid downward in the second slide rail through the third slide bar to expose the transformer body.

[0008] The present invention adopts the above technical solution to bring the following beneficial effects: 1. For the oil-immersed power transformer with a protective structure, when the transformer body is offset or vibrated, the damper can reduce the range of movement of the transformer body and the mounting frame, thereby making the transformer body run more stably and improving the safety of the use of the transformer body. The trapezoidal plug is inserted into the positioning groove to clamp the trapezoidal clamping block and the mounting angle plate, thereby making the transformer body more stably installed on the mounting frame. After the trapezoidal clamp is separated from the trapezoidal plug and locked, the transformer body and the mounting angle plate can be quickly removed from the mounting frame, thereby improving the convenience of using the device.

[0009] 2. In the oil-immersed power transformer with a protective structure, the dehumidification plate absorbs moisture around the transformer body through the internal silica gel dehumidifier, preventing moisture from penetrating into the transformer body to cause the insulating oil in the transformer body to deteriorate and affect the insulation effect, thereby improving the insulation and safety of the device. The first slider drives the dehumidification plates to approach each other and retract into the storage shell, preventing the silica gel dehumidifier in the dehumidification plate from contacting with the air when the transformer body is not in use, resulting in a reduction in the dehumidification effect.

[0010] 3. The oil-immersed power transformer with a protective structure has a protective outer frame that protects the surface of the transformer body to prevent the transformer body from being damaged by impact or even affecting the stability of the insulating oil. The heat emitted by the transformer body flows out from the ventilation slots to avoid affecting the heat dissipation effect of the transformer body, thereby improving safety in use. The protective top plate rotates and closes the top of the protective outer frame to improve the protection effect. The protective outer frame slides downward in the second slide rail through the third slider to expose the transformer body, which is convenient for staff to perform maintenance and improves ease of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the three-dimensional overall structure of the present invention; Figure 2 It is a schematic diagram of the front side cross-sectional three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the front side cross-section of the three-dimensional structure of the installation frame of the present invention; Figure 4 For the present invention Figure 3 A is a schematic diagram of the enlarged structure of the middle part; Figure 5 It is a schematic diagram of the front side cross-sectional three-dimensional structure of the insulating oil moisture-proof device of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure of B; Figure 7 It is a schematic diagram of the front side cross-sectional three-dimensional structure of the surface protection device of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure of C in the figure.

[0012] In the figure: 1. protection base; 2. mounting frame; 3. transformer body; 31. first slide rail; 32. damper; 33. mounting angle plate; 34. trapezoidal block; 35. positioning groove; 36. fixing block; 37. elastic telescopic rod one; 38. trapezoidal plug block; 39. L-shaped toggle rod; 310. triangular pressure plate; 4. insulating oil moisture-proof device; 41. storage shell; 42. dehumidification plate; 43. through groove; 44. first slider; 45. triangular slide plate; 46. guide rail; 47. connecting block; 48. elastic telescopic rod two; 49. second slider; 410. contact shaft; 5. surface protection device; 51. protective outer frame; 52. ventilation groove; 53. second slide rail; 54. third slider; 55. protective top plate; 56. threaded sleeve shaft; 57. slide rod; 58. contact inclined plate; 59. L-shaped transmission plate. DETAILED DESCRIPTION

[0013] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0014] See also Figure 1-Figure 8, one embodiment of the present invention is: an oil-immersed power transformer with a protection structure, comprising a protection base 1, a damper 32 is fixedly connected to the inner surface of the protection base 1, a mounting frame 2 is fixedly connected to the top of the damper 32, a transformer body 3 is arranged inside the mounting frame 2, a first slide rail 31 is fixedly connected to the upper surface of the protection base 1, a mounting angle plate 33 is fixedly connected to the lower surface of the transformer body 3 by screws, a trapezoidal block 34 is fixedly connected to the side of the mounting angle plate 33, a positioning groove 35 is provided on the inner side of the trapezoidal block 34, a fixing block 36 is fixedly connected to the inner surface of the mounting frame 2, an elastic telescopic rod 37 is fixedly connected to the inner surface of the fixing block 36, an end of the elastic telescopic rod 37 close to the trapezoidal block 34 is fixedly connected to a trapezoidal plug 38, an L-shaped toggle rod 39 is fixedly connected to the side of the trapezoidal plug 38, a triangular pressure plate 310 is fixedly connected to the lower surface of the mounting frame 2, and when the transformer body 3 is offset or vibrated, the damper 32 can reduce the transformer body 3 and the mounting frame 2, thereby making the transformer body 3 run more stably and improving the safety of the use of the transformer body 3. An insulating oil moisture-proof device 4 is arranged above the protective base 1 for dehumidifying the area around the transformer body 3 to prevent the insulating oil in the transformer body 3 from being damp and deteriorating, thereby affecting the insulation effect. A surface protection device 5 is arranged above the protective base 1 for protecting the surface of the transformer body 3 to prevent the transformer body 3 from being damaged by impact and even affecting the stability of the insulating oil. The mounting frame 2 is slidably connected to the inner surface of the first slide rail 31, the trapezoidal plug block 38 is slidably connected to the inner surface of the fixed block 36, the L-shaped toggle rod 39 is slidably connected to the inner surface of the fixed block 36, the trapezoidal plug block 38 is inserted into the positioning groove 35 to clamp the trapezoidal block 34 and the mounting angle plate 33, thereby making the transformer body 3 more stably installed on the mounting frame 2. After the trapezoidal block 34 is separated from the trapezoidal plug block 38 and locked, the transformer body 3 and the mounting angle plate 33 can be quickly removed from the mounting frame 2, thereby improving the convenience of using the device.

[0015] Working principle: put the transformer body 3 into the installation frame 2, push the transformer body 3 and the installation frame 2 downward, so that the installation frame 2 is stuck in the protective base 1. When the transformer body 3 is offset or vibrated, the damper 32 can reduce the activity range of the transformer body 3 and the installation frame 2, thereby making the operation of the transformer body 3 more stable and improving the safety of the use of the transformer body 3. When the transformer body 3 is put into the installation frame 2, the transformer body 3 drives the installation angle plate 33 to descend, and the installation angle plate 33 drives the trapezoidal block 34 to descend. When the trapezoidal block 34 descends, the inclined surface contacts the inclined surface of the trapezoidal plug block 38, and the trapezoidal block 34 is guided by the inclined surface to push the trapezoidal plug block 38 into the fixed block 36 and By squeezing the elastic telescopic rod 37, the trapezoidal block 34 continues to move downward so that the positioning groove 35 is aligned with the trapezoidal plug block 38. At this time, the elastic reset effect of the elastic telescopic rod 37 pushes the trapezoidal plug block 38 to pop out of the fixed block 36 and insert it into the positioning groove 35 to clamp the trapezoidal block 34 and the mounting angle plate 33, thereby making the transformer body 3 more stably installed on the mounting frame 2. When the transformer body 3 needs to be removed, the L-shaped toggle rod 39 is pushed, and the L-shaped toggle rod 39 drives the trapezoidal plug block 38 to retract into the fixed block 36 again, so that the trapezoidal block 34 is disengaged from the locking of the trapezoidal plug block 38, so that the transformer body 3 and the mounting angle plate 33 can be removed from the mounting frame 2, thereby improving the convenience of use of the device.

[0016] See also Figure 1-Figure 8On the basis of the above embodiment, in another embodiment of the present invention, the insulating oil moisture-proof device 4 includes a storage shell 41, a dehumidification plate 42, and a through groove 43. The storage shell 41 is fixedly connected to the rear side of the inner wall of the protection base 1, the dehumidification plate 42 is slidably connected to the inner surface of the storage shell 41, and the through groove 43 is opened on the front side of the storage shell 41. The dehumidification plate 42 absorbs moisture around the transformer body 3 through the internal silica gel dehumidifier to prevent moisture from penetrating into the transformer body 3, causing the insulating oil in the transformer body 3 to deteriorate and affect the insulation effect, thereby improving the insulation and safety of the device. The insulating oil moisture-proof device 4 also includes a first slider 44, a triangular slider 45, a guide rail 46, a connecting block 47, an elastic telescopic rod 48, a second slider 49, and a contact shaft 410. The first slider 44 is fixedly connected to the front side of the dehumidification plate 42, and the triangular slider 45 is fixedly connected to the It is connected to the front side of the first slider 44, the guide rail 46 is fixedly connected to the bottom surface of the inner wall of the protection base 1, the connecting block 47 is fixedly connected to the bottom surface of the storage shell 41, the elastic telescopic rod 48 is fixedly connected to both sides of the connecting block 47, the second slider 49 is fixedly connected to the end of the elastic telescopic rod 48 away from the first slider 44, the resistance shaft 410 is arranged on both sides of the dehumidification plate 42, the first slider 44 is slidably connected to the inner surface of the through groove 43, a silica gel dehumidifier is arranged inside the dehumidification plate 42, the triangular slide plate 45 is slidably connected to the guide rail 46, the connecting block 47 is fixedly connected to the rear side of the inner wall of the protection base 1, the triangular slide plate 45 and the front side of the second slider 49 are fixedly connected, the first slider 44 drives the dehumidification plates 42 to approach each other and be stored in the storage shell 41, so as to prevent the silica gel dehumidification agent in the dehumidification plate 42 from contacting with the air when the transformer body 3 is not in use, resulting in a decrease in the dehumidification effect.

[0017] Working principle: During the use of the transformer body 3, the dehumidification plate 42 absorbs moisture around the transformer body 3 through the internal silica gel dehumidifier to prevent moisture from penetrating into the transformer body 3, causing the insulating oil in the transformer body 3 to deteriorate and affect the insulation effect, thereby improving the insulation and safety of the device. When the mounting frame 2 descends, the triangular pressing plate 310 is driven to descend. After the inclined surface of the triangular pressing plate 310 contacts the inclined surface of the triangular slide plate 45, the triangular slide plate 45 is pushed to slide on the guide rail 46 and approach the side of the protective base 1 through the guidance of the inclined surface. The triangular slide plate 45 drives the first slider to slide in the through groove 43. 44 approaches the side of the protection base 1, the first slider 44 drives the dehumidification plate 42 to extend out of the storage shell 41 and protect the transformer body 3 from moisture. When the triangular pressure plate 310 rises, the triangular slide plate 45 loses its resistance. At this time, the elastic reset effect of the elastic telescopic rod 48 pulls the second slider 49 close to the connecting block 47, and the second slider 49 drives the triangular slide plates 45 to approach each other. The triangular slide plates 45 then drive the dehumidification plates 42 to approach each other and are stored in the storage shell 41 through the first slider 44, so as to prevent the silica gel dehumidifier in the dehumidification plate 42 from contacting with the air when the transformer body 3 is not in use, resulting in a decrease in the dehumidification effect.

[0018] See also Figure 1-Figure 8 On the basis of the above embodiment, in another embodiment of the present invention, the surface protection device 5 includes a protection frame 51, a ventilation groove 52, a second slide rail 53, and a third slider 54. The second slide rail 53 is fixedly connected to both sides of the inner surface of the protection base 1, and the third slider 54 is slidably connected to the inner surface of the second slide rail 53. The protection frame 51 is fixedly connected to the side of the third slider 54 away from the second slide rail 53. The ventilation grooves 52 are arranged on both sides of the protection frame 51. The protection frame 51 protects the surface of the transformer body 3 to prevent the transformer body 3 from being damaged by impact and even affecting the stability of the insulating oil. The heat emitted by the transformer body 3 flows out from the ventilation groove 52 to avoid affecting the heat dissipation effect of the transformer body 3, thereby improving the safety of use. The surface protection device 5 also includes a protection top plate 55, a threaded sleeve shaft 56, a slide rod 57, a contact inclined plate 58, and an L-shaped transmission plate 59. The protection top plate 55 Hinged on both sides of the top of the protective outer frame 51, the threaded sleeve 56 is threadedly connected to the inner surfaces of both sides of the protective outer frame 51, the sliding rod 57 is slidably connected to the inner surface of the threaded sleeve 56, the contact inclined plate 58 is fixedly connected to the end of the sliding rod 57 away from the dehumidification plate 42, and the L-shaped transmission plate 59 is fixedly connected to the side of the protective top plate 55 away from the storage shell 41, the contact shaft 410 and the end of the sliding rod 57 close to the dehumidification plate 42 are fixedly connected, a spring is arranged between the contact shaft 410 and the threaded sleeve 56, the inclined surface of the contact inclined plate 58 and the lower surface of the L-shaped transmission plate 59 are in contact with each other, a torsion spring is arranged at the hinge of the protective top plate 55 and the protective outer frame 51, the protective top plate 55 rotates and closes the top of the protective outer frame 51, thereby improving the protection effect, and the protective outer frame 51 slides downward in the second slide rail 53 through the third slider 54 to expose the transformer body 3, which is convenient for the staff to overhaul and improves the convenience of use.

[0019] Working principle: During the use of the transformer body 3, the protective outer frame 51 protects the surface of the transformer body 3 to prevent the transformer body 3 from being damaged by impact or even affecting the stability of the insulating oil, and the heat emitted by the transformer body 3 flows out from the ventilation slots 52 to avoid affecting the heat dissipation effect of the transformer body 3, thereby improving the safety of use. When the dehumidification plate 42 approaches the two sides of the protection base 1, it contacts the resistance shaft 410 and pushes the resistance shaft 410 close to the protective outer frame 51. The resistance shaft 410 drives the sliding rod 57 to slide in the threaded sleeve shaft 56 and extend out of the protective outer frame 51. The sliding rod 57 drives the resistance inclined plate 58 to move to the side away from the protective outer frame 51. The resistance inclined plate 58 pushes the L-shaped transmission plate 59 to rotate along the hinge between the protective top plate 55 and the protective outer frame 51, thereby causing the protective top plate 55 to rotate and move the protective outer frame 51. The top of the frame 51 is closed, which improves the protection effect. When the dehumidification plate 42 is received in the storage shell 41, the resistance shaft 410 loses the resistance of the dehumidification plate 42. At this time, the elastic return action of the spring pushes the resistance shaft 410 close to the storage shell 41, thereby driving the slide bar 57 to retract into the protective outer frame 51, and the slide bar 57 drives the resistance inclined plate 58 close to the protective outer frame 51. After the L-shaped transmission plate 59 loses the resistance of the resistance inclined plate 58, the elastic return action of the torsion spring drives the protective top plate 55 to rotate and reset. At this time, the threaded sleeve shaft 56 is rotated, and the threaded sleeve shaft 56 drives the resistance inclined plate 58 and the resistance shaft 410 to separate from the protective outer frame 51 through the slide bar 57. At this time, the protective outer frame 51 is slid downward in the second slide rail 53 through the third slider 54 to expose the transformer body 3, which is convenient for staff to carry out maintenance and improves ease of use.

[0020] The present invention provides an oil-immersed power transformer with a protective structure. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An oil-immersed power transformer with a protective structure, comprising a protective base (1), characterized in that: The inner surface of the protection base (1) is fixedly connected to a damper (32), the top of the damper (32) is fixedly connected to a mounting frame (2), a transformer body (3) is arranged inside the mounting frame (2), the upper surface of the protection base (1) is fixedly connected to a first slide rail (31), the lower surface of the transformer body (3) is fixedly connected to a mounting angle plate (33) by means of screws, the side of the mounting angle plate (33) is fixedly connected to a trapezoidal block (34), a positioning groove (35) is provided on the inner side of the trapezoidal block (34), the inner surface of the fixing block (36) is fixedly connected to an elastic telescopic rod (37), one end of the elastic telescopic rod (37) close to the trapezoidal block (34) is fixedly connected to a trapezoidal plug block (38), the side of the trapezoidal plug block (38) is fixedly connected to an L-shaped toggle rod (39), and the lower surface of the mounting frame (2) is fixedly connected to a triangular pressure plate (310); An insulating oil moisture-proof device (4) is provided above the protection base (1), and a surface protection device (5) is provided above the protection base (1).

2. The oil-immersed power transformer with a protective structure according to claim 1, characterized in that: The installation frame (2) is slidably connected to the inner surface of the first slide rail (31), the trapezoidal plug block (38) is slidably connected to the inner surface of the fixed block (36), and the L-shaped toggle rod (39) is slidably connected to the inner surface of the fixed block (36).

3. The oil-immersed power transformer with a protective structure according to claim 2, characterized in that: The insulating oil moisture-proof device (4) comprises a storage shell (41), a dehumidification plate (42), and a through slot (43); the storage shell (41) is fixedly connected to the rear side of the inner wall of the protection base (1); the dehumidification plate (42) is slidably connected to the inner surface of the storage shell (41); and the through slot (43) is provided on the front side of the storage shell (41).

4. The oil-immersed power transformer with a protective structure according to claim 3, characterized in that: The insulating oil moisture-proof device (4) further comprises a first slider (44), a triangular slider (45), a guide rail (46), a connecting block (47), a second elastic telescopic rod (48), a second slider (49), and a contact shaft (410), wherein the first slider (44) is fixedly connected to the front side of the dehumidification plate (42), the triangular slider (45) is fixedly connected to the front side of the first slider (44), the guide rail (46) is fixedly connected to the bottom surface of the inner wall of the protection base (1), the connecting block (47) is fixedly connected to the bottom surface of the storage shell (41), the second elastic telescopic rod (48) is fixedly connected to both sides of the connecting block (47), the second slider (49) is fixedly connected to one end of the second elastic telescopic rod (48) away from the first slider (44), and the contact shaft (410) is arranged on both sides of the dehumidification plate (42).

5. The oil-immersed power transformer with a protective structure according to claim 4, characterized in that: The first sliding block (44) is slidably connected to the inner surface of the through groove (43), a silica gel dehumidifier is provided inside the dehumidification plate (42), the triangular sliding block (45) is slidably connected to the guide rail (46), the connecting block (47) is fixedly connected to the rear side surface of the inner wall of the protective base (1), and the triangular sliding block (45) is fixedly connected to the front side surface of the second sliding block (49).

6. The oil-immersed power transformer with a protective structure according to claim 5, characterized in that: The surface protection device (5) comprises a protection outer frame (51), a ventilation slot (52), a second slide rail (53), and a third slider (54); the second slide rail (53) is fixedly connected to both sides of the inner surface of the protection base (1); the third slider (54) is slidably connected to the inner surface of the second slide rail (53); the protection outer frame (51) is fixedly connected to a side of the third slider (54) away from the second slide rail (53); and the ventilation slot (52) is provided on both sides of the protection outer frame (51).

7. The oil-immersed power transformer with a protective structure according to claim 6, characterized in that: The surface protection device (5) further comprises a protection top plate (55), a threaded sleeve (56), a sliding rod (57), an abutment inclined plate (58), and an L-shaped transmission plate (59); the protection top plate (55) is hinged on both sides of the top of the protection outer frame (51); the threaded sleeve (56) is threadedly connected to the inner surfaces of both sides of the protection outer frame (51); the sliding rod (57) is slidably connected to the inner surface of the threaded sleeve (56); the abutment inclined plate (58) is fixedly connected to one end of the sliding rod (57) away from the dehumidification plate (42); and the L-shaped transmission plate (59) is fixedly connected to one side of the protection top plate (55) away from the storage shell (41).

8. The oil-immersed power transformer with a protective structure according to claim 7, characterized in that: The abutment shaft (410) and one end of the slide rod (57) close to the dehumidification plate (42) are fixedly connected, a spring is provided between the abutment shaft (410) and the threaded sleeve shaft (56), the inclined surface of the abutment inclined plate (58) and the lower surface of the L-shaped transmission plate (59) are in contact with each other, and a torsion spring is provided at the hinge between the protective top plate (55) and the protective outer frame (51).

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