Transformer

Abstract

The transformer comprises a box transformer substation shell, an inclined shell top is arranged above the box transformer substation shell, fixing plates are fixedly connected to the two sides of the box transformer substation shell, a sliding control block is slidably connected to one side of each fixing plate, and a limiting plate is arranged on one side of each sliding control block; the other side of the limiting plate is rotationally connected with a scraping plate, a plurality of control grooves are formed in the limiting plate, one side of each control groove is provided with a control slope, a limiting sliding groove is formed in the scraping plate, and a sliding protruding plate is slidably connected into the limiting sliding groove; a third spring is fixedly connected between the sliding protruding plate and the scraping plate, and an inclined scraping face is arranged at the lower end of the scraping plate. According to the transformer, accumulated snow on the top of the box transformer shell can be automatically scraped off through the scraping plate in rainy and snowy weather.

Description

Technical Field

[0001] The present invention relates to the field of transformers, in particular to a transformer. Background Art

[0002] With the continued growth of the global economy and an increasing population, energy demand is increasing. However, traditional fossil fuels (such as coal, oil, and natural gas) have limited reserves, and their extraction and use have severe environmental impacts. Therefore, the development and utilization of renewable energy sources has become a crucial approach to addressing energy shortages and environmental pollution. Wind energy, as a clean, renewable energy source, offers enormous development potential and application prospects. Transformers are essential components of wind power generation systems. The electricity generated by wind turbines often has a low voltage, while the power grid has strict voltage requirements. Therefore, low-voltage electricity needs to be boosted to a higher voltage for long-distance transmission. Furthermore, voltage fluctuations in wind farms are significant, affected by various factors such as wind speed and direction. Transformers automatically adjust their output voltage to maintain stable voltage at wind farms, ensuring the normal operation of wind power systems and the safety of the power grid. Furthermore, the design of the box-type transformer enclosure effectively protects the transformer, preventing it from coming into contact with the outside world.

[0003] In the case of rain or snow, the existing transformer will accumulate snow on the top of the transformer casing, which will increase the pressure on the transformer casing and may even cause the transformer casing to deform, seriously affecting the service life of the equipment. Therefore, it does not meet the existing needs, and a transformer is proposed. Summary of the Invention

[0004] The present invention provides a transformer which has the beneficial effect of being able to automatically scrape off the snow on the top of the transformer casing through a scraper in rainy and snowy weather, thereby solving the problem mentioned in the above background technology that in rainy and snowy weather, snow will accumulate on the top of the transformer casing, thereby causing the pressure on the transformer casing to increase, and may even cause the transformer casing to deform, seriously affecting the service life of the equipment.

[0005] The present invention provides the following technical solution: a transformer, comprising a box transformer shell, an inclined shell top is provided on the top of the box transformer shell, fixed plates are fixedly connected to both sides of the box transformer shell, one side of the fixed plate is slidably connected to a sliding control block, characterized in that: a limiting plate is provided on one side of the sliding control block, and a scraping plate is rotatably connected to the other side of the limiting plate, a plurality of control grooves are provided on the limiting plate, a control inclined surface is provided on one side of the control groove, a limiting slide groove is provided inside the scraping plate, a sliding protrusion plate is slidably connected in the limiting slide groove, a third spring is fixedly connected between the sliding protrusion plate and the scraping plate, and an inclined scraping surface is provided on the lower end of the scraping plate; The upper ends of both sides of the scraper plate are provided with interference columns, which are slidably connected to the scraper plate. One end of the interference column located inside the scraper plate is provided with an interference slope, which interferes with one end of the sliding protrusion plate, and the other end of the interference column is used to interfere with the control slope.

[0006] As an optional transformer solution described in the present invention, the first chute, the second chute, the third chute and the fourth chute are provided on the side of the fixed plate close to the scraper plate, the first chute, the second chute, the third chute and the fourth chute are connected to each other, a first rack is provided on one side of the second chute, a second rack is provided on one side of the fourth chute, and the first rack and the second rack are both fixedly mounted on the fixed plate.

[0007] As an optional transformer solution described in the present invention, one side of the limiting plate is fixedly connected to a sliding square column, the other end of the sliding square column is fixedly connected to a sliding cylinder, and the sliding cylinder is slidably connected to the first slide groove, the second slide groove, the third slide groove and the fourth slide groove.

[0008] As an optional transformer solution described in the present invention, a hydraulic rod is installed on one side of the fixed plate, the power output end of the hydraulic rod is fixedly connected to one side of the lower end of the sliding control block, a sliding groove is provided on the sliding control block, and the sliding square column is slidably connected to the sliding groove.

[0009] As an optional transformer solution described in the present invention, a sliding hole is provided at the upper end of the sliding control block, a limiting sliding rod is slidably connected in the sliding hole, the limiting sliding rod is mounted on the fixed plate, and the limiting sliding rod is used to limit the sliding trajectory of the sliding control block.

[0010] As an optional transformer solution described in the present invention, one end of the scraper plate is slidably connected to a fixed column, one end of the fixed column located inside the scraper plate abuts against a first spring, and the first spring is arranged inside the scraper plate.

[0011] As an optional transformer solution described in the present invention, a locking hole is provided on a side of the limiting plate close to the scraper plate, a control column is slidably connected to the interior of the locking hole, the control column is sleeved with a second spring, one end of the second spring is fixedly connected to the interior of the limiting plate, and the second spring is a tension spring.

[0012] As an optional transformer solution described in the present invention, one side of the sliding control block is provided with an inclined sliding groove, the inclined sliding groove is located on one side of the sliding groove, and the inclined sliding groove is used to be slidably connected to one end of the control column.

[0013] As an optional transformer solution described in the present invention, wherein: a rotating shaft is fixedly connected to both sides of the scraper plate, the rotating shaft passes through the limiting plate, and the rotating shaft is rotatably connected to the limiting plate, and a transmission gear is provided at the other end of the rotating shaft, and the transmission gear is used to engage with the first rack and the second rack, and a fixed block is provided below the limiting plate, and the fixed block is used to limit the position of the scraper plate.

[0014] As an optional transformer solution described in the present invention, a limiting mechanism is provided at the junction of the second slide groove and the third slide groove, and the limiting mechanism includes a limiting block, which is slidably connected to the fixed plate, and a guide slope is provided on one side of the limiting block, and the guide slope is used to interfere with the sliding cylinder. A fourth spring is provided between the limiting block and the fixed plate, and the fourth spring is fixedly connected to the fixed plate. The same structure is also provided at the junction of the first slide groove and the second rack.

[0015] The present invention has the following beneficial effects:

[0016] 1. The transformer, through the multiple rebounds of the sliding protrusion plate, makes the scraper plate as a whole vibrate, so that the snow adhering to the scraper plate can be shaken off, preventing the snow from adhering to the scraper plate, so that the snow on the inclined shell top can be pushed away; Moreover, when snow is stuck on the scraper plate, the sliding protrusion plate can slide into the scraper plate to effectively reduce the contact area between the scraper plate and the snow. At the same time, with the assistance of vibration, the snow sticking to the scraper plate can be more effectively reduced.

[0017] 2. In this transformer, when the scraper pushes the snow on the inclined shell top to the edge of the inclined shell top, the sliding square column will drive the sliding cylinder, the limiting plate and the scraper to slide in the direction away from the inclined shell top, so that when the scraper slides toward the top of the inclined shell top, it can prevent the scraper from pushing the snow toward the top of the inclined shell top when sliding back, thereby further clearing the snow.

[0018] 3. The transformer is designed with an inclined slide groove, so that when needed, the control column in the locking hole can slide into the inclined slide groove to open the locking hole, providing space for the fixed column to cooperate with the locking hole. Through the cooperation between the fixed column and the locking hole, the position of the scraper can be locked to prevent the scraper from shaking when sliding back, preventing the snow from being pushed back twice, and further enabling the snow to be pushed away. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the structure of the fixed disc and rotating ring of the present invention.

[0021] Figure 3 It is a schematic diagram of the fixed disc structure of the present invention.

[0022] Figure 4 It is a schematic diagram of the rotating ring structure of the present invention.

[0023] Figure 5 It is a schematic structural diagram of the percussion hammer of the present invention.

[0024] Figure 6 It is a schematic diagram of the smooth groove structure of the present invention.

[0025] Figure 7 It is a schematic diagram of the empty slot structure of the present invention.

[0026] Figure 8 Schematic diagram of the filter plate structure of the present invention.

[0027] Figure 9 This is a schematic diagram of the first torsion spring structure of the present invention.

[0028] Figure 10 It is a schematic structural diagram of the filter plate of the present invention.

[0029] Figure 11 This is a schematic diagram of the closed structure of the filter plate of the present invention.

[0030] Figure: 1, box-type transformer housing; 11, inclined housing top; 12, fixed plate; 13, hydraulic rod; 2, sliding control block; 21, sliding groove; 22, sliding hole; 23, limiting slide rod; 24, limiting plate; 25, fixed block; 26, sliding square column; 27, sliding cylinder; 28, scraper plate; 29, inclined scraper surface; 210, rotating shaft; 211, transmission gear; 212, control groove; 213, control inclined surface; 214, inclined slide groove; 21 5. Locking hole; 3. First spring; 31. Fixed column; 32. Control column; 33. Second spring; 34. Interference column; 35. Interference inclined surface; 36. Limiting slide; 37. Sliding protrusion plate; 38. Third spring; 4. First slide; 41. Second slide; 42. Third slide; 43. Fourth slide; 44. First rack; 45. Second rack; 5. Limiting mechanism; 51. Limiting block; 52. Guide inclined surface; 53. Fourth spring. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0032] For example 1, please refer to Figures 1-11 The present invention discloses a transformer, including a transformer housing 1, wherein an inclined shell top 11 is provided above the transformer housing 1. The inclined design of the inclined shell top 11 facilitates the flow of rainwater and snow on the top of the transformer housing 1. The two sides of the transformer housing 1 are fixedly connected with fixed plates 12, one side of the fixed plate 12 is slidably connected with a sliding control block 2, one side of the sliding control block 2 is provided with a limiting plate 24, the other side of the limiting plate 24 is rotatably connected with a scraping plate 28, a plurality of control grooves 212 are opened on the limiting plate 24, and a control inclined surface 213 is provided on one side of the control groove 212. A limiting groove 36 is provided inside the scraper plate 28, and a sliding protrusion plate 37 is slidably connected in the limiting groove 36. A third spring 38 is fixedly connected between the sliding protrusion plate 37 and the scraper plate 28. An inclined scraping surface 29 is provided at the lower end of the scraper plate 28. Through the design of the inclined scraping surface 29, the bottom of the scraper plate 28 can be more closely fitted to the top of the inclined shell top 11. It should be noted that a solar photovoltaic panel can be installed on the top of the inclined shell top 11 to collect the electricity generated by the photovoltaic panel, which can provide power for the startup of subsequent equipment, so that the equipment can save electricity. A first chute 4, a second chute 41, a third chute 42 and a fourth chute 43 are provided on the side of the fixed plate 12 close to the scraper plate 28. The first chute 4, the second chute 41, the third chute 42 and the fourth chute 43 are connected to each other. A first rack 44 is provided on one side of the second chute 41, and a second rack 45 is provided on one side of the fourth chute 43. The first rack 44 and the second rack 45 are both fixedly mounted on the fixed plate 12.

[0033] The upper ends of both sides of the scraper plate 28 are provided with interference columns 34, which are slidably connected to the scraper plate 28. One end of the interference column 34 located inside the scraper plate 28 is provided with a interference slope 35, which interferes with one end of the sliding protrusion plate 37, and the other end of the interference column 34 is used to interfere with the control slope 213.

[0034] A sliding square column 26 is fixedly connected to one side of the limiting plate 24 , and a sliding cylinder 27 is fixedly connected to the other end of the sliding square column 26 . The sliding cylinder 27 is slidably connected to the first chute 4 , the second chute 41 , the third chute 42 and the fourth chute 43 .

[0035] A hydraulic rod 13 is installed on one side of the fixed plate 12, and the power output end of the hydraulic rod 13 is fixedly connected to one side of the lower end of the sliding control block 2. A sliding groove 21 is provided on the sliding control block 2, and the sliding square column 26 is slidingly connected to the sliding groove 21. The square design of the sliding square column 26 ensures that the sliding square column 26 will not deviate when sliding in the sliding groove 21, and can provide a stable support for the limiting plate 24, so that the scraper plate 28 can be more stable when pushing the accumulated snow.

[0036] A sliding hole 22 is formed at the upper end of the sliding control block 2 , and a limiting slide bar 23 is slidably connected in the sliding hole 22 . The limiting slide bar 23 is mounted on the fixed plate 12 and is used to limit the sliding trajectory of the sliding control block 2 .

[0037] The sliding control block 2 is driven to slide by the hydraulic rod 13. When the sliding control block 2 slides, the sliding square column 26 is driven to slide together, so that the limiting plate 24 and the scraping plate 28 can slide together, so that the scraping plate 28 can push away the snow on the inclined shell top 11. When the hydraulic rod 13 drives the sliding control block 2 to slide, the design of the limiting slide rod 23 can prevent the sliding control block 2 from shaking during the sliding process. When the sliding control block 2 slides, the sliding square column 26 and the sliding cylinder 27 are driven to slide together, so that the sliding cylinder 27 can first slide in the second slide groove 41. The second slide groove 41 is an inclined design. When the sliding cylinder 27 slides in the second slide groove 41, the sliding trajectory of the scraping plate 28 can be the same as the inclination angle of the inclined shell top 11. At the same time, when the sliding cylinder 27 slides in the second slide groove 41, the sliding square column 26 gradually falls down, so that the sliding square column 26 can slide in the sliding groove 21 of the sliding control block 2. When the sliding cylinder 27 slides to the first rack 44, the transmission gear 211 on the rotating shaft 210 on one side of the scraper plate 28 will be able to engage with the first rack 44. When the transmission gear 211 engages with the first rack 44, the transmission gear 211 can drive the rotating shaft 210 and the scraper plate 28 to rotate together. At this time, the scraper plate 28 has slid to the edge of the inclined shell top 11. Through the rotation of the scraper plate 28, the accumulated snow can also be moved, which can effectively scrape the accumulated snow from the inclined shell top 11. At the same time, the scraper plate 28 can be tilted after rotation, so that the accumulated snow can slide down the scraper plate 28.

[0038] When the scraper plate 28 rotates, it can drive the interference column 34 to rotate together, so that the interference column 34 can slide into the control groove 212. When the interference column 34 slides into the control groove 212, one end of the interference column 34 loses the interference of the limiting plate 24. Figure 10, so that the third spring 38 in the scraper plate 28 can pull the sliding protrusion plate 37 to slide in the limiting slide groove 36. At the same time, the design of the limiting slide groove 36 prevents the sliding protrusion plate 37 from deflecting during the sliding process. When the third spring 38 pulls the sliding protrusion plate 37 to slide, one end of the sliding protrusion plate 37 will contact the interfering inclined surface 35. Through the interference with the interfering inclined surface 35, the interfering column 34 can slide to the left, so that the sliding protrusion plate 37 can slide into the inside of the scraper plate 28, so that the pushed snow can reduce the contact area with the scraper plate 28, thereby preventing excessive snow from sticking to the scraper plate 28. The sliding protrusion 37 can be pushed back to the left of the scraper 28 so that the scraper 28 can be pushed back to the right of the scraper 28.

[0039] In this embodiment, the cooperation between the multiple control grooves 212 and the abutment posts 34 enables the sliding protrusion 37 to rebound and slide multiple times. The rapid rebound of the sliding protrusion 37 causes the scraper plate 28 to vibrate as a whole, thereby shaking off the snow adhering to the scraper plate 28 and preventing the snow from adhering to the scraper plate 28. This allows the snow on the inclined housing top 11 to be pushed away. Moreover, as the scraper plate 28 continues to push the accumulated snow, the accumulated snow will stick to the scraper plate 28 during the process of being pushed. The design of the sliding protrusion plate 37 sliding into the scraper plate 28 allows the scraper plate 28 to reduce the contact area with the pushed snow. At the same time, the vibration of the scraper plate 28 can effectively prevent the accumulated snow from sticking to the scraper plate 28.

[0040] Example 2: This example is intended to solve the problem that the scraper 28 may push the snow back when sliding upward. This example is an improvement made on the basis of Example 1. For details, please refer to Figures 1-11A limiting mechanism 5 is provided at the junction of the second slide groove 41 and the third slide groove 42. The limiting mechanism 5 includes a limiting block 51. The limiting block 51 is slidably connected to the fixed plate 12. A guide slope 52 is provided on one side of the limiting block 51. The guide slope 52 is used to contact the sliding cylinder 27. A fourth spring 53 is provided between the limiting block 51 and the fixed plate 12. The fourth spring 53 is fixedly connected to the fixed plate 12. The same structure is also provided at the junction of the first slide groove 4 and the second rack 45.

[0041] When the sliding cylinder 27 slides to the intersection of the second slide groove 41 and the third slide groove 42, one end of the sliding cylinder 27 can conflict with the guide inclined surface 52 on the limiting block 51, so that the sliding cylinder 27 can squeeze the limiting block 51 into the fixed plate 12, causing the fourth spring 53 to deform, providing power for the subsequent limiting block 51 to return to its original position. When the sliding cylinder 27 slides over the limiting block 51, the limiting block 51 returns to its original position under the action of the fourth spring 53. At this time, the straight surface of the limiting block 51 conflicts with one side of the sliding cylinder 27, preventing the sliding cylinder 27 from sliding into the second slide groove 41 again. Then the hydraulic rod 13 starts to pull the sliding control block 2 back to slide, so that the sliding cylinder 27 can move to the third When the sliding cylinder 27 slides to the junction of the first slide groove 4 and the second slide groove 41, the junction of the first slide groove 4 and the second slide groove 41 is also provided with a limiting mechanism similar to the limiting block 51 to prevent the sliding cylinder 27 from sliding into the first slide groove 4 when pushing snow, so that the sliding cylinder 27 can continue to slide in the second slide groove 41 when pushing snow. At the same time, when the sliding cylinder 27 slides to the junction of the fourth slide groove 43 and the first slide groove 4, the transmission gear 211 has ended its engagement with the second rack 45. At this time, the scraper plate 28 has returned to a vertical state, so that the scraper plate 28 can push the snow.

[0042] It should be noted that when the sliding cylinder 27 slides to the junction of the second sliding groove 41 and the third sliding groove 42, the transmission gear 211 has finished engaging with the first rack 44, and the scraper plate 28 is already in an inclined state.

[0043] In this embodiment: the sliding cylinder 27 is guided by the limiting block 51 so that the sliding cylinder 27 slides in the second slide groove 41, so that the scraper plate 28 can approach the inclined shell top 11, so that the snow on the inclined shell top 11 can be pushed more cleanly. At the same time, when the scraper plate 28 needs to slide back, with the cooperation of the limiting block 51, the sliding cylinder 27 can slide from the second slide groove 41 into the second slide groove 41, so that the scraper plate 28 can be away from the inclined shell top 11, which can prevent the scraper plate 28 from pushing the snow to the top of the inclined shell top 11 when sliding back, and further enable the snow to be pushed clean.

[0044] Example 3: This example is intended to solve the problem of the scraper plate 28 swinging when sliding upward. This example is an improvement made on the basis of Example 2. For details, please refer to Figures 1-11 One end of the scraping plate 28 is slidably connected to a fixed column 31 , and one end of the fixed column 31 located inside the scraping plate 28 abuts against a first spring 3 , which is arranged inside the scraping plate 28 .

[0045] A control column 32 is slidably connected to the interior of the locking hole 215 . The control column 32 is sleeved with a second spring 33 . One end of the second spring 33 is fixedly connected to the interior of the limiting plate 24 . The second spring 33 is a tension spring.

[0046] An inclined sliding groove 214 is formed on one side of the sliding control block 2 . The inclined sliding groove 214 is located on one side of the sliding groove 21 . The inclined sliding groove 214 is used for sliding connection with one end of the control column 32 .

[0047] A limiting block 51 is provided at the junction of the second slide groove 41 and the third slide groove 42. The limiting block 51 is slidably connected to the fixed plate 12. A guiding slope 52 is provided on one side of the limiting block 51. The guiding slope 52 is used to contact the sliding cylinder 27. A fourth spring 53 is provided between the limiting block 51 and the fixed plate 12. The fourth spring 53 is fixedly connected to the fixed plate 12. The same structure is also provided at the junction of the first slide groove 4 and the second rack 45.

[0048] See Figure 5 When the sliding cylinder 27 slides in the second sliding groove 41, it will drive the sliding square column 26 to slide downward in the sliding groove 21. The downward sliding of the sliding square column 26 will drive the limiting plate 24 to slide downward together. When the limiting plate 24 slides downward, Figure 7, which will cause the control post 32 on the limiting plate 24 to slide downward together, and the control post 32 on the limiting plate 24 will be lifted up by the action of the second spring 33, so that the control post 32 slides into the inclined sliding groove 214, and the sliding of the control post 32 opens the locking hole 215; when the scraper plate 28 rotates subsequently, the fixed post 31 on the scraper plate 28 slides to the locking hole 215, and under the action of the first spring 3, the fixed post 31 slides into the locking hole 215, and when the fixed post 31 slides into the locking hole 215, the position of the scraper plate 28 is locked, preventing the scraper plate 28 from shaking when sliding back; When the subsequent sliding cylinder 27 slides in the fourth sliding groove 43, the sliding cylinder 27 drives the sliding square column 26 to slide upward in the sliding groove 21. When the transmission gear 211 is about to engage with the second rack 45, the control column 32 is caused to slide toward the inside of the locking hole 215 at the inclined position of the inclined sliding groove 214, thereby causing the fixing column 31 to slide in the locking hole 215, and the control column 32 is pushed to the position as shown in FIG. Figure 7 As shown in the inclined groove at the right end of the locking hole 215, as the sliding cylinder 27 continues to slide in the fourth sliding groove 43, when the transmission gear 211 engages with the second rack 45, the transmission gear 211 drives the rotating shaft 210 and the scraper plate 28 to reverse, and the force of the engagement of the transmission gear 211 with the second rack 45 enables the control column 32 to slide out from the inclined groove at the right end of the locking hole 215, so that the position of the scraper plate 28 is not restricted, and the scraper plate 28 is restored to a vertical state. At the same time, a fixed block 25 is provided on the limiting plate 24. Through the design of the fixed block 25, the scraper plate 28 will not rotate when pushing the accumulated snow.

[0049] It should be noted that when the scraper 28 does not need to push the snow, the position of the scraper 28 is Figure 2 In the middle state, when it rains, rainwater can slide down the scraper plate 28, so that the rainwater can stay away from the box-type transformer housing 1 as much as possible.

[0050] In this embodiment, by designing the inclined slide groove 214, when the sliding cylinder 27 drives the sliding square column 26, the limiting plate 24 and the scraping plate 28 to slide downward, the control column 32 will slide into the inside of the control groove 212. When the control column 32 slides, the subsequent scraping plate 28 rotates, and the fixed column 31 on the scraping plate 28 will slide into the locking hole 215, so that the position of the scraping plate 28 can be fixed, which can prevent the subsequent scraping plate 28 from shaking. At the same time, when the sliding cylinder 27 The sliding square column 26, the limiting plate 24 and the scraper plate 28 are driven to slide upward. When the scraper plate 28 needs to be reset, the control column 32 will interfere with the inclined part of the inclined slide groove 214, causing the control column 32 to slide into the locking hole 215, and the fixing column 31 to be pushed out from the locking hole 215, so that the fixation of the scraper plate 28 is released. Through such a design, the scraper plate 28 will not come into contact with the snow when sliding back, preventing the snow from being pushed back for the second time, and further allowing the snow to be pushed away.

[0051] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0052] 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 technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A transformer, comprising a box-type transformer housing, wherein an inclined shell top is provided above the box-type transformer housing, a fixed plate is fixedly connected to both sides of the box-type transformer housing, and a sliding control block is slidably connected to one side of the fixed plate, characterized in that: A limiting plate is provided on one side of the sliding control block, and a scraping plate is rotatably connected to the other side of the limiting plate. A plurality of control grooves are provided on the limiting plate, and a control inclined surface is provided on one side of the control groove. A limiting slide groove is provided inside the scraping plate, and a sliding protrusion plate is slidably connected in the limiting slide groove. A third spring is fixedly connected between the sliding protrusion plate and the scraping plate, and an inclined scraping surface is provided at the lower end of the scraping plate; The upper ends of both sides of the scraper plate are provided with interference columns, which are slidably connected to the scraper plate. One end of the interference column located inside the scraper plate is provided with an interference slope, which interferes with one end of the sliding protrusion plate, and the other end of the interference column is used to interfere with the control slope.

2. The transformer according to claim 1, characterized in that: The fixed plate is provided with a first slide groove, a second slide groove, a third slide groove and a fourth slide groove on one side close to the scraping plate. The first slide groove, the second slide groove, the third slide groove and the fourth slide groove are connected to each other. A first rack is provided on one side of the second slide groove, and a second rack is provided on one side of the fourth slide groove. The first rack and the second rack are both fixedly mounted on the fixed plate.

3. The transformer according to claim 2, characterized in that: A sliding square column is fixedly connected to one side of the limiting plate, and a sliding cylinder is fixedly connected to the other end of the sliding square column. The sliding cylinder is slidably connected to the first sliding groove, the second sliding groove, the third sliding groove and the fourth sliding groove.

4. The transformer according to claim 3, characterized in that: A hydraulic rod is installed on one side of the fixed plate, and the power output end of the hydraulic rod is fixedly connected to one side of the lower end of the sliding control block. A sliding groove is opened on the sliding control block, and the sliding square column is slidably connected to the sliding groove.

5. The transformer according to claim 1, wherein: A sliding hole is provided at the upper end of the sliding control block, a limiting sliding rod is slidably connected in the sliding hole, the limiting sliding rod is mounted on the fixed plate, and the limiting sliding rod is used to limit the sliding track of the sliding control block.

6. The transformer according to claim 4, characterized in that: One end of the scraping plate is slidably connected to a fixing column, and one end of the fixing column located inside the scraping plate abuts against a first spring, which is arranged inside the scraping plate.

7. The transformer according to claim 6, characterized in that: A locking hole is provided on one side of the limiting plate close to the scraping plate, and a control column is slidably connected to the inside of the locking hole. The control column is sleeved with a second spring, and one end of the second spring is fixedly connected to the inside of the limiting plate. The second spring is a tension spring.

8. The transformer according to claim 7, characterized in that: An inclined sliding groove is provided on one side of the sliding control block. The inclined sliding groove is located on one side of the sliding groove. The inclined sliding groove is used for sliding connection with one end of the control column.

9. The transformer according to claim 2, characterized in that: A rotating shaft is fixedly connected to both sides of the scraper plate, the rotating shaft passes through the limiting plate, and the rotating shaft is rotatably connected to the limiting plate. A transmission gear is provided at the other end of the rotating shaft, and the transmission gear is used to engage with the first rack and the second rack. A fixed block is provided under the limiting plate, and the fixed block is used to limit the position of the scraper plate.

10. The transformer according to claim 3, characterized in that: A limiting mechanism is provided at the junction of the second slide groove and the third slide groove, and the limiting mechanism includes a limiting block, and the limiting block is slidably connected to the fixed plate. A guiding slope is provided on one side of the limiting block, and the guiding slope is used to interfere with the sliding cylinder. A fourth spring is provided between the limiting block and the fixed plate, and the fourth spring is fixedly connected to the fixed plate. The same structure is also provided at the junction of the first slide groove and the second rack.

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