Split energy-saving DC converter transformer

Abstract

The present invention relates to the technical field of DC converter transformers, and discloses a split-type energy-saving DC converter transformer, comprising an installation unit and an anti-fall unit; wherein, the installation unit comprises two cross stretchers, the top surfaces of the two cross stretchers are provided with a transformer body, two fastening screws are provided at both ends of the two cross stretchers, and two fixing nuts threadedly connected to the fastening screws are fixedly installed at both ends of the two cross stretchers. During the hoisting process, the anti-fall arc plates at both ends and the anti-fall wheels inside the poles fit together with the outer wall of the pole, thereby ensuring the stability and positioning accuracy of the overall structure when moving upward, effectively avoiding shaking during the hoisting process, and more importantly, in the event of an accident causing the overall structure to fall, the device can automatically trigger the locking mechanism, increase friction through a series of mechanical transmissions, slow down the falling speed, and buy time for manual rescue measures.

Description

Technical Field

[0001] This invention relates to the field of DC converter transformer technology, and more particularly to a split-type energy-saving DC converter transformer. Background Technology

[0002] Split-type energy-saving DC converter transformers are a type of DC converter transformer that combines split design with energy-saving technology. They are mainly used in high-voltage direct current (HVDC) transmission systems to achieve the conversion between alternating current and direct current, while optimizing equipment energy consumption and operating efficiency. Split-type energy-saving DC converter transformers represent an important development direction for future DC transmission systems. Their combination of split design and energy-saving technology not only improves the efficiency of equipment transportation, installation, and maintenance, but also significantly reduces energy consumption and operating costs.

[0003] In the installation of split-type energy-saving DC converter transformers, especially during the process of lifting them to the designated height on the pole, hoisting is commonly used. While this method improves installation efficiency to some extent, it also presents significant safety hazards. Because the height, position, and orientation of the transformer need precise control during hoisting, improper operation or external environmental factors (such as wind force and the stability of the hoisting equipment) could lead to accidental contact between the transformer and the overhead transmission lines during the ascent. Such contact could not only cause direct faults such as damage to the transformer casing and short circuits in internal components, but could also lead to more serious consequences, such as line tripping, large-scale power outages, and even personal injury and property damage, posing a serious threat to the stable operation of the power system.

[0004] Therefore, it is necessary to design a split-type energy-saving DC converter transformer to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a split-type energy-saving DC converter transformer.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Split-type energy-saving DC converter transformer, including installation unit and fall protection unit;

[0008] The installation unit includes two crossbeams, with a transformer body mounted on the top surface of each crossbeam. Two fastening screws are mounted at both ends of each crossbeam, and two fixing nuts that are screwed to the fastening screws are fixedly installed at both ends of each crossbeam. A limit structure is provided between the two fastening screws on the same side of the four fastening screws.

[0009] The fall protection unit includes two rotating plates symmetrically arranged on the bottom surfaces of two crossbeams. A fixing frame is fixedly installed on the bottom surface of the rotating plate. A shaft is rotatably installed on the inner wall of the fixing frame. A support plate is fixedly fitted on the shaft. A fall protection arc plate is fixedly installed at the end of the support plate away from the shaft.

[0010] A driving structure is provided between the rotating plate and the two crossbeams, and a guide component is provided on the inner wall of the anti-fall arc plate.

[0011] One end of the shaft passes through the side of the fixing frame, and a locking assembly is provided on the outer wall of the shaft.

[0012] As a preferred embodiment of the present invention, the limiting structure includes four guide rings that are threaded onto the outer walls of the two fastening screws at both ends. Each of the four guide rings has a support rod fixedly installed on its outer wall. The bottom ends of two of the four support rods located on the same side are fixedly installed with limiting half-hoops.

[0013] As a preferred embodiment of the present invention, the inner walls of both limiting semi-circular rings are configured as semi-circular, and both ends of the limiting semi-circular rings are provided with mounting openings, and the thread directions of the two ends of the fastening screw are opposite.

[0014] As a preferred embodiment of the present invention, the driving structure includes an adjusting screw rotatably mounted on the bottom end of one of the cross stretchers, a guide rod fixedly mounted on the bottom end of the other of the two cross stretchers, a guide plate slidably mounted on the guide rod, and the guide plate being screwed to the adjusting screw, and the top surface of the rotating plate being rotatably connected to the bottom surface of the guide plate.

[0015] As a preferred embodiment of the present invention, a crank plug is fixedly installed at one end of the adjusting screw located on the outside of the crossbeam.

[0016] As a preferred embodiment of the present invention, the guide assembly includes three equally spaced brackets fixedly installed on the inner wall of the anti-fall arc plate. Anti-fall wheels are rotatably installed on the inner walls of the three brackets. Two upright plates are symmetrically fixedly installed on the inner wall of the anti-fall arc plate. Universal joints are fixedly installed at both ends of the three anti-fall wheels and on the sides of the two upright plates. Connecting rods are fixedly installed between each pair of the universal joints. Drive bevel gears are rotatably installed on the sides of the two upright plates, and the drive bevel gears are fixedly connected to a universal joint located at the end. Two drive shafts are symmetrically arranged through the inner wall of the anti-fall arc plate. Driven bevel gears are fixedly installed at the ends of the two drive shafts, and the driven bevel gears mesh with the drive bevel gears.

[0017] As a preferred embodiment of the present invention, the bottom of the inner wall of the anti-fall arc plate is provided with anti-slip texture, and two mounting plates are symmetrically fixedly installed on the outer wall of the anti-fall arc plate.

[0018] As a preferred embodiment of the present invention, the locking assembly includes a fixed box fixedly installed on the side of the fixed frame, and one end of the shaft located outside the fixed frame passes through the fixed box. A ratchet is fixedly fitted on the outer wall of the shaft located inside the fixed box. A rotating shaft is rotatably installed on the inner wall of the fixed box. A pawl is fixedly fitted on the rotating shaft and engages with the ratchet. A torsion spring is fitted on the end of the rotating shaft, and the two ends of the torsion spring are fixedly connected to the fixed box and the rotating shaft, respectively.

[0019] As a preferred embodiment of the present invention, the end of the shaft located outside the fixed box is connected to the transmission shaft via a sprocket and a chain drive.

[0020] As a preferred embodiment of the present invention, the end of the fastening screw away from the fixing nut is configured as hexagonal.

[0021] The present invention has the following beneficial effects:

[0022] 1. By setting up anti-fall arc plates and anti-fall wheels, during the hoisting process, the anti-fall arc plates at both ends and the anti-fall wheels inside are in contact with the outer wall of the pole, ensuring the stability and positioning accuracy of the overall structure when moving upward, effectively avoiding swaying during hoisting. More importantly, in the event of an accident causing the entire structure to fall, the device can automatically trigger the locking mechanism, increase friction through a series of mechanical transmissions, slow down the falling speed, and buy time for manual rescue measures.

[0023] 2. By setting ratchet and pawl, in the event of a fall, the system not only relies on the friction between the anti-fall wheel and the pole to slow down, but also has mechanical locking devices such as one-way bearings and ratchet mechanisms. This allows the anti-fall arc plate to press against the pole while increasing friction with anti-slip texture, thus achieving double protection and greatly improving the safety of the equipment.

[0024] 3. By setting up a rotating plate and adjusting screw, workers can tighten the fastening screw to clamp the pole between the two crossarms and further reinforce it with a limiting half-hoop ring to ensure the stable installation of the transformer body and crossarms. In addition, the design of the adjusting screw, guide plate and rotating plate allows for easy adjustment of the position of the distribution box and quick and firm fixing through bolts and mounting plates. The whole installation process is simple and efficient, while ensuring the reliability of the final installation. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the split-type energy-saving DC converter transformer proposed in this invention. Figure 1;

[0026] Figure 2 This is a three-dimensional structural diagram of the split-type energy-saving DC converter transformer proposed in this invention. Figure 2 ;

[0027] Figure 3 This is a schematic diagram of the crossbeam structure of the split-type energy-saving DC converter transformer proposed in this invention.

[0028] Figure 4 This is a schematic diagram of the fastening screw and limiting half-hoop structure of the split-type energy-saving DC converter transformer proposed in this invention.

[0029] Figure 5 This is a schematic diagram of the guide plate and rotating plate structure of the split-type energy-saving DC converter transformer proposed in this invention;

[0030] Figure 6 This is a schematic diagram of the anti-fall arc plate structure of the split-type energy-saving DC converter transformer proposed in this invention;

[0031] Figure 7 for Figure 6 Enlarged structural diagram at point A in the middle;

[0032] Figure 8 for Figure 6 Enlarged structural diagram at point B;

[0033] Figure 9 This is a schematic diagram of the internal structure of the fixed box of the split-type energy-saving DC converter transformer proposed in this invention.

[0034] In the diagram: 11. Crossbeam; 12. Transformer body; 13. Fastening screw; 14. Fixing nut; 21. Guide ring; 22. Support rod; 23. Limiting half-hoop ring; 24. Mounting port; 31. Adjusting screw; 32. Guide rod; 33. Guide plate; 34. Rotating plate; 35. Fixing frame; 36. Shaft; 37. Support plate; 38. Anti-fall arc plate; 39. Crank plug; 41. Bracket; 42. Anti-fall wheel; 43. Universal joint; 44. Connecting rod; 45. Vertical plate; 46. Drive bevel gear; 47. Transmission shaft; 48. Driven bevel gear; 49. Mounting plate; 51. Fixing box; 52. Ratchet; 53. Rotating shaft; 54. Pawl; 55. Torsion spring. Detailed Implementation

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] Reference Figure 1-9Split-type energy-saving DC converter transformer, including installation unit and fall protection unit;

[0037] The installation unit includes two crossbeams 11, with a transformer body 12 mounted on the top surface of each crossbeam 11. Two fastening screws 13 are mounted at both ends of each crossbeam 11, with the threads of the two ends of the fastening screws 13 in opposite directions. Two fixing nuts 14, which are screwed to the fastening screws 13, are fixedly installed at both ends of each crossbeam 11. The end of the fastening screw 13 away from the fixing nut 14 is hexagonal. A limit structure is provided between the two fastening screws 13 located on the same side of the four fastening screws 13.

[0038] The limiting structure includes four guide rings 21 that are threaded onto the outer walls of the two fastening screws 13 at both ends. Each of the four guide rings 21 has a support rod 22 fixedly installed on its outer wall. The bottom ends of the two support rods 22 located on the same side of the four support rods 22 are fixedly installed with limiting half-hoops 23. The inner walls of the two limiting half-hoops 23 are both set as semi-circular. Both ends of the limiting half-hoops 23 have an installation port 24.

[0039] Workers can install two crossbeams 11 on the outside of the two poles, so that the two poles are located on the inside of the two ends of the crossbeams 11. Then, the transformer body 12 is installed on the top surface of the two crossbeams 11 and connected to the hoisting equipment. Then, workers tighten the fastening screws 13 so that the two crossbeams 11 are close to each other and fit against the outer wall of the pole, but not in a clamped state. After the whole assembly is hoisted into place, workers can first manually tighten the fastening screws 13 at both ends so that the two crossbeams 11 can clamp the two poles and fix them. Since the threads at both ends of the fastening screws 13 are opposite and the guide rings 21 are screwed to the fastening screws 13, the two limiting half-hoops 23 can move towards each other and clamp against the outer wall of the pole when the fastening screws 13 are rotated. Workers can then fix the two limiting half-hoops 23 by passing bolts through the installation port 24 to achieve the fixed installation of the crossbeams 11 and the transformer body 12.

[0040] Reference Figure 1 , Figure 3 , Figure 5 , Figure 6 The fall protection unit includes two rotating plates 34 symmetrically arranged on the bottom surface of two crossbeams 11. A fixed frame 35 is fixedly installed on the bottom surface of the rotating plate 34. A shaft 36 is rotatably installed on the inner wall of the fixed frame 35. A support plate 37 is fixedly fitted on the shaft 36. A fall protection arc plate 38 is fixedly installed at the end of the support plate 37 away from the shaft 36. The bottom of the inner wall of the fall protection arc plate 38 is provided with anti-slip texture. A drive structure is provided between the rotating plate 34 and the two crossbeams 11.

[0041] The drive structure includes an adjusting screw 31 rotatably mounted on the bottom end of a crossbeam 11, a guide rod 32 fixedly mounted on the bottom end of another crossbeam 11, a guide plate 33 slidably mounted on the guide rod 32, and the guide plate 33 is screwed to the adjusting screw 31. The top surface of the rotating plate 34 is rotatably connected to the bottom surface of the guide plate 33. A crank plug 39 is fixedly mounted on one end of the adjusting screw 31 located on the outside of the crossbeam 11.

[0042] In the hoisting state, the inner walls of the two anti-fall arc plates 38 at both ends can fit against the outer wall of the pole, and the outer walls of the anti-fall wheels 42 on the inner walls of the anti-fall arc plates 38 also fit against the outer wall of the pole, allowing for overall hoisting. During the overall hoisting process, as the transformer body 12 and the crossbeam 11 move upwards, the anti-fall arc plates 38 at both ends can climb and move upwards along the pole. Because the anti-fall wheels 42 on the inner walls of the anti-fall arc plates 38 fit against the outer wall of the pole, the anti-fall arc plates 38 at both ends can position the entire structure during hoisting, preventing swaying and ensuring the stability of the hoisting. After installation, the operator can insert the crank handle into the crank handle plug 39 and drive it. When the plug 39 is rotated, the adjusting screw 31 will rotate. One end of the guide plate 33 is slidably connected to the guide rod 32, and the other end is screwed to the adjusting screw 31. Therefore, when the adjusting screw 31 is rotated, the guide plate 33 will slide, so that the two guide plates 33 at both ends can slide towards each other. After the guide plate 33 is in place, the operator can rotate the rotating plate 34 so that the two anti-fall arc plates 38 can rotate to a relative position. At this time, the operator can place the distribution box between the two relative anti-fall arc plates 38, and the side of the distribution box can fit against the side of the anti-fall arc plate 38. The distribution box can then be fixed with bolts and mounting plate 49 to complete the overall installation of the transformer.

[0043] Reference Figure 6 , Figure 7 , Figure 8The inner wall of the fall arrestor plate 38 is provided with a guide assembly, which includes three equally spaced brackets 41 fixedly installed on the inner wall of the fall arrestor plate 38. Fall arrestor wheels 42 are rotatably installed on the inner wall of each of the three brackets 41. Two upright plates 45 are symmetrically fixedly installed on the inner wall of the fall arrestor plate 38. Universal joints 43 are fixedly installed at both ends of the three fall arrestor wheels 42 and on the sides of the two upright plates 45. Connecting rods 44 are fixedly installed between each pair of the universal joints 43. Drive bevel gears 46 are rotatably installed on the sides of the two upright plates 45, and the drive bevel gears 46 are fixedly connected to a universal joint 43 located at the end. Two drive shafts 47 are symmetrically arranged through the inner wall of the fall arrestor plate 38. Driven bevel gears 48 are fixedly installed at the ends of the two drive shafts 47, and the driven bevel gears 48 mesh with the drive bevel gears 46. Two mounting plates 49 are symmetrically fixedly installed on the outer wall of the fall arrestor plate 38.

[0044] If an accident occurs during hoisting and the entire structure falls downwards, the anti-fall arc plate 38 moves upwards. When the anti-fall wheel 42 rotates inside the support 41, it can drive the drive bevel gear 46 to rotate via the universal joint 43 and connecting rod 44. The drive bevel gear 46 meshes with the driven bevel gear 48, which in turn drives the driven bevel gear 48 and the drive shaft 47 to rotate. The end of the drive shaft 47 is fitted with a sprocket via a one-way bearing, and this sprocket is connected to the sprocket at the end of the shaft 36 via a chain drive. The rotation direction of the drive shaft 47 is the free state of the one-way bearing. Therefore, when the drive shaft 47 rotates, it cannot drive the shaft 36 to rotate via the sprocket and chain. The shaft 36, support plate 37, and anti-fall arc plate 48 will rotate downwards. When the fall arrestor plate 38 is in a stable state, and the fall arrestor wheel 42 rotates in the opposite direction, the one-way bearing is locked, so when the drive shaft 47 rotates, it can drive the sprocket to rotate, and through the chain, drive the shaft 36, support plate 37, and fall arrestor plate 38 to rotate along the fixing frame 35 towards the pole, so that the fall arrestor plate 38 presses against the pole. When the fall arrestor plate 38 presses against the pole, the friction between the two increases sharply under the action of the anti-slip texture. At this time, the pole can press against the fall arrestor wheel 42, so that the fall arrestor wheel 42 cannot rotate. The two effects work together to ensure that the overall fall will generate a large friction force, slowing down the overall fall speed, so that human intervention can take rescue measures.

[0045] Reference Figure 6 , Figure 9One end of the shaft 36 passes through the side of the fixed frame 35, and a locking assembly is provided on the outer wall of the shaft 36. The locking assembly includes a fixed box 51 fixedly installed on the side of the fixed frame 35, and the end of the shaft 36 located outside the fixed frame 35 passes through the fixed box 51. A ratchet 52 is fixedly fitted on the outer wall of the shaft 36 located inside the fixed box 51. A rotating shaft 53 is rotatably installed on the inner wall of the fixed box 51. A pawl 54 is fixedly fitted on the rotating shaft 53, and the pawl 54 meshes with the ratchet 52. A torsion spring 55 is fitted on the end of the rotating shaft 53, and the two ends of the torsion spring 55 are fixedly connected to the fixed box 51 and the rotating shaft 53 respectively. The end of the shaft 36 located outside the fixed box 51 is connected to the drive shaft 47 through a sprocket and a chain drive, and the sprocket is fitted on the end of the drive shaft 47 through a one-way bearing.

[0046] During the rotation of shaft 36, shaft 36 can drive the ratchet 52 in the fixed box 51 to rotate. During this rotation, the pawl 54 can move out of position under the action of torsion spring 55. After the rotation is completed, the pawl 54 can engage with the ratchet 52, ensuring that shaft 36 cannot reverse, and playing a limiting role for support plate 37 and anti-fall arc plate 38.

[0047] The specific working principle of this invention is as follows:

[0048] In use, the operator first installs the two crossbeams 11 on the outside of the two poles, so that the two poles are located on the inside of the two ends of the crossbeams 11. Then, the transformer body 12 is installed on the top surface of the two crossbeams 11 and connected to the hoisting equipment. The transformer body 12 contains a voltage regulating winding with a wide voltage regulation range (e.g., ±20%-30%) and small adjustment increments (1%-2%). It needs to be used in conjunction with the converter bridge trigger control. Then, the operator tightens the fastening screws 13 so that the two crossbeams 11 are close to each other and fit against the outer wall of the pole, but are not clamped. In this state, the inner walls of the two anti-fall arc plates 38 at both ends can fit against the outer wall of the pole, and the outer walls of the anti-fall wheels 42 on the inner walls of the anti-fall arc plates 38 can fit against the outer wall of the pole, allowing the whole unit to be hoisted. During the hoisting process, as the transformer body 12 and the crossbeam 11 move upward, the anti-fall arc plates 38 at both ends can climb and move upward along the pole. Since the anti-fall wheels 42 on the inner walls of the anti-fall arc plates 38 fit against the outer wall of the pole, the anti-fall arc plates 38 at both ends can position the whole unit during hoisting, preventing swaying during hoisting and ensuring the stability of the hoisting.

[0049] If an accident occurs during hoisting and the entire structure falls downwards, the anti-fall arc plate 38 moves upwards. When the anti-fall wheel 42 rotates inside the support 41, it can drive the drive bevel gear 46 to rotate via the universal joint 43 and connecting rod 44. The drive bevel gear 46 meshes with the driven bevel gear 48, which in turn drives the driven bevel gear 48 and the drive shaft 47 to rotate. The end of the drive shaft 47 is fitted with a sprocket via a one-way bearing, and this sprocket is connected to the sprocket at the end of the shaft 36 via a chain drive. The rotation direction of the drive shaft 47 is the free state of the one-way bearing. Therefore, when the drive shaft 47 rotates, it cannot drive the shaft 36 to rotate via the sprocket and chain. The shaft 36, support plate 37, and anti-fall arc plate 38 are in a stable state. When the anti-fall arc plate 38 falls, the rotation direction of the anti-fall wheel 42 is reversed, and the one-way bearing is locked. Therefore, when the drive shaft 47 rotates, it can drive the shaft 36 to rotate via the sprocket and chain. The drive sprocket rotates, and through the chain, it drives the shaft 36, support plate 37, and anti-fall arc plate 38 to rotate along the fixing frame 35 towards the pole. During the rotation of the shaft 36, the shaft 36 can drive the ratchet 52 in the fixing box 51 to rotate. During this rotation, the pawl 54 can move out of position under the action of the torsion spring 55. After the rotation is completed, the pawl 54 can engage with the ratchet 52, ensuring that the shaft 36 cannot reverse. This limits the support plate 37 and the anti-fall arc plate 38, causing the anti-fall arc plate 38 to press against the pole. When the anti-fall arc plate 38 presses against the pole, the friction between the two increases sharply under the action of the anti-slip texture. At this time, the pole can press against the anti-fall wheel 42, preventing the anti-fall wheel 42 from rotating. The combination of these two effects ensures that the overall fall will generate a large friction force, slowing down the overall fall speed, so that human intervention can take rescue measures.

[0050] After the entire assembly is hoisted into place, workers can first manually tighten the fastening screws 13 at both ends, allowing the two crossbeams 11 to clamp the two poles together for fixation. Since the threads at both ends of the fastening screws 13 are opposite in direction, and the guide rings 21 are screwed onto the fastening screws 13, the two limiting half-hoops 23 can move closer together when the fastening screws 13 rotate, clamping onto the outer wall of the pole. Workers then use bolts to pass through the mounting holes 24 to fix the two limiting half-hoops 23, thus achieving the fixed installation of the crossbeams 11 and the transformer body 12. After installation, workers can then insert the crank handle into the crank handle plug 39 and drive it. When the adjustment screw 31 is rotated, it can drive the adjustment screw 31 to rotate. One end of the guide plate 33 is slidably connected to the guide rod 32, and the other end is screwed to the adjustment screw 31. Therefore, when the adjustment screw 31 rotates, it can drive the guide plate 33 to slide, so that the two guide plates 33 at both ends can slide towards each other. After the guide plate 33 is in place, the operator can rotate the rotating plate 34 so that the two anti-fall arc plates 38 can rotate to a relative state. At this time, the operator can place the distribution box between the two relative anti-fall arc plates 38, and the side of the distribution box can fit against the side of the anti-fall arc plate 38. The distribution box can then be fixed by bolts and mounting plate 49 to complete the overall installation of the transformer.

[0051] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A split-type energy-saving DC converter transformer, characterized in that, Includes installation unit and fall protection unit; The installation unit includes two crossbeams, with a transformer body mounted on the top surface of each crossbeam. Two fastening screws are mounted at both ends of each crossbeam, and two fixing nuts that are screwed to the fastening screws are fixedly installed at both ends of each crossbeam. A limit structure is provided between the two fastening screws on the same side of the four fastening screws. The fall protection unit includes two rotating plates symmetrically arranged on the bottom surfaces of two crossbeams. A fixed frame is fixedly installed on the bottom surface of the rotating plates. A shaft is rotatably installed on the inner wall of the fixed frame. A support plate is fixedly fitted on the shaft. A fall protection arc plate is fixedly installed at the end of the support plate away from the shaft. Among them, a driving structure is provided between the rotating plate and the two cross beams, and a guide component is provided on the inner wall of the anti-fall arc plate; The guiding assembly includes three equally spaced brackets fixedly installed on the inner wall of the fall arrestor plate. Fall arrestor wheels are rotatably installed on the inner walls of the three brackets. Two upright plates are symmetrically fixedly installed on the inner wall of the fall arrestor plate. Universal joints are fixedly installed at both ends of the three fall arrestor wheels and on the sides of the two upright plates. Connecting rods are fixedly installed between each pair of the universal joints. Drive bevel gears are rotatably installed on the sides of the two upright plates, and the drive bevel gears are fixedly connected to a universal joint located at the end. Two drive shafts are symmetrically arranged through the inner wall of the fall arrestor plate. Driven bevel gears are fixedly installed at the ends of the two drive shafts, and the driven bevel gears mesh with the drive bevel gears. One end of the shaft passes through the side of the fixing frame, and a locking component is provided on the outer wall of the shaft; The locking assembly includes a fixed box fixedly installed on the side of the fixed frame, with one end of the shaft located outside the fixed frame passing through the fixed box. The other end of the shaft located outside the fixed box is connected to the drive shaft via a sprocket and a chain drive. A ratchet is fixedly fitted on the outer wall of the inner side of the fixed box. A rotating shaft is rotatably installed on the inner wall of the fixed box. A pawl is fixedly fitted on the rotating shaft and engages with the ratchet. A torsion spring is fitted on the end of the rotating shaft, and both ends of the torsion spring are fixedly connected to the fixed box and the rotating shaft, respectively.

2. The split-type energy-saving DC converter transformer according to claim 1, characterized in that, The limiting structure includes four guide rings that are threaded onto the outer walls of the two fastening screws at both ends. Each of the four guide rings has a support rod fixedly installed on its outer wall. The bottom ends of the two support rods located on the same side of the four support rods are fixedly installed with limiting half-hoops.

3. The split-type energy-saving DC converter transformer according to claim 2, characterized in that, The inner walls of both limiting semi-circular rings are set, and both ends of the limiting semi-circular rings are provided with installation ports. The threads of the two ends of the fastening screw are opposite.

4. The split-type energy-saving DC converter transformer according to claim 1, characterized in that, The drive structure includes an adjusting screw rotatably mounted on the bottom end of one of the crossbeams, a guide rod fixedly mounted on the bottom end of the other of the two crossbeams, a guide plate slidably mounted on the guide rod, and the guide plate being screwed to the adjusting screw, and the top surface of the rotating plate being rotatably connected to the bottom surface of the guide plate.

5. The split-type energy-saving DC converter transformer according to claim 4, characterized in that, The adjusting screw is fixedly installed with a crank plug at one end located on the outside of the crossbeam.

6. The split-type energy-saving DC converter transformer according to claim 1, characterized in that, The bottom of the inner wall of the anti-fall arc plate is provided with anti-slip texture, and two mounting plates are symmetrically fixedly installed on the outer wall of the anti-fall arc plate.

7. The split-type energy-saving DC converter transformer according to claim 1, characterized in that, The end of the fastening screw away from the fixing nut is hexagonal.

Images