Voltage transformer convenient to install

Abstract

The invention discloses a voltage transformer convenient to install, and relates to the technical field of voltage transformers, the voltage transformer comprises a base, the base is rotatably connected with the bottom of a box body, the bottom of the base is slidably connected with a round rod, one end, close to the base, of the round rod is fixedly connected with a compression spring, and one end, away from the base, of the round rod is fixedly connected with a fixed rod; the number of the fixing rods is four, the four fixing rods are evenly distributed with the round rod as the center, a hexagonal frame is fixedly connected to the ends, away from the round rod, of the fixing rods, a fixing frame is fixedly connected to the bottom of the box body, and an annular groove is formed in the end, close to the hexagonal frame, of the fixing frame. According to the voltage transformer convenient to install, the bolt is limited and fixed through the hexagonal frame, and the safety accidents that in the working process, due to the fact that the bolt is loosened, when equipment runs or is interfered by external force, the bolt possibly falls off completely, connection of related parts of the equipment is lost, the equipment breaks down, and the parts possibly fall off to hurt people are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of voltage transformers, in particular to a voltage transformer which is convenient to install. Background Art

[0002] Capacitive voltage transformer is a voltage transformer that divides the voltage by series capacitors, and then reduces the voltage and isolates it through electromagnetic transformers. It is used as a voltage transformer for meters, relay protection, etc. Capacitive voltage transformer can also couple the carrier frequency to the transmission line for long-distance communication, remote measurement, selective line high-frequency protection, remote control, teletypewriting, etc. Therefore, compared with conventional electromagnetic voltage transformers, capacitive voltage transformers can prevent ferromagnetic resonance caused by saturation of the voltage transformer core, and have many advantages in economy and safety.

[0003] Existing capacitive voltage transformers are installed at a high position in outdoor environments. As time goes by and the equipment vibrates during operation, mounting bolts and other connectors may gradually loosen. Loose connectors may cause deformation, breakage, and other components of the transformer's mounting bracket, which may cause the transformer to fall, posing a serious safety threat to surrounding personnel and equipment. At the same time, if the outside of the transformer is not cleaned for a long time, a lot of dust will accumulate, affecting the working performance of the capacitive voltage transformer. Due to the high installation position of the capacitive voltage transformer, manual cleaning is required, which is extremely inconvenient. Summary of the invention

[0004] To achieve the above purpose, the present invention is implemented through the following technical solutions: a voltage transformer that is easy to install, including a box, an electromagnetic unit is fixedly installed inside the box, and the electromagnetic unit is composed of an intermediate transformer, a compensating reactor and a damper, a terminal box is fixedly connected to the outside of the box, and a heat sink is fixedly connected to the outside of the box; A fixing component, which is used for supporting and fixing, and is fixedly installed at the bottom of the box; The middle component is fixedly installed in the middle of the top of the box; The protective component is fixedly installed on the top of the box and sleeved on the outside of the middle component. By threading the voltage transformers, it is helpful to install them. The voltage transformers can be split into several parts for transportation. The size and weight of each component are greatly reduced, making it easier to carry and load them onto various transportation tools, such as small trucks and containers, etc., which improves the flexibility and operability of transportation and can also reduce the vibration and impact they are subjected to during transportation, thereby effectively reducing the risk of equipment damage and the transportation damage rate of the equipment; A cleaning component, the cleaning component is rotatably connected to the outer side of the protection component; Among them, the fixing component includes a base, which is rotatably connected to the bottom of the box. Through the adjustment and rotation between the base and the box, the strict requirements on the installation angle of the transformer under some special measurement or protection requirements can be met, ensuring that the cooperation between the transformer and other electrical equipment is more accurate, thereby improving the measurement accuracy and the reliability of the protection device, and ensuring the stable operation of the power system. The bottom of the base is slidably connected to a round rod, and the end of the round rod close to the base is fixedly connected to a compression spring, the compression spring is fixedly connected to the base, and the end of the round rod away from the base is fixedly connected to a fixing rod. The voltage transformer is placed in the designated installation position, and the bottom fixing frame is driven to rotate by the base, so that the annular groove on the fixing frame and the mounting hole at the bottom are located on the same vertical line. On the upper part, under the action of the equipment's own gravity, the fixing rod is forced to move toward the direction of the base, so that the compression spring is compressed and deformed, driving the round rod and the fixing rod to slide inside the base, so that the hexagonal frame is located inside the fixing frame. At this time, the hexagonal frame limits and fixes the bolts to prevent the bolts from loosening during work, causing the equipment to fall off completely when it is running or disturbed by external forces, causing related parts of the equipment to lose connection, resulting in equipment failure, and may also cause safety accidents such as parts falling and injuring people. There are four fixing rods, and the four fixing rods are evenly distributed with the round rod as the center. The end of the fixing rod away from the round rod is fixedly connected to the hexagonal frame, and the bottom of the box is fixedly connected to the fixing frame. An annular groove is provided on the end of the fixing frame close to the hexagonal frame.

[0005] There are four fixed frames, which are evenly distributed with the base as the center. The fixed frames are U-shaped, and the inside of the hexagonal frames is fixedly connected with a ring plate, which is elastic.

[0006] Preferably, the protective component includes a sleeve, which is fixedly connected to the top of the box body, and a convex ring is fixedly connected to the outer side of the sleeve. There are multiple convex rings, and the multiple convex rings are arranged on the outer side of the sleeve. The end of the sleeve is fixedly connected to a connecting seat, and the connecting seat is located at an end away from the box body. The top of the connecting seat is fixedly connected to a spiral sleeve, and a fixed cylinder is arranged on the outer side of the spiral sleeve. The inner wall of the fixed cylinder is spirally connected to the outer side of the spiral sleeve. The fixed cylinder is sleeved on the outer side of the spiral sleeve, and the spiral sleeve and the fixed cylinder are threadedly connected. The threaded connection can provide a tighter fit, and the top sleeve of the voltage transformer is screwed into the corresponding thread of the installation part, so that the two can be tightened. A stable connection is formed, which is helpful for replacing the sleeve during subsequent maintenance, avoiding impact on the voltage transformer body, extending the service life of the transformer, and further reducing production losses and safety risks that may be caused by equipment failure. At the same time, it can better withstand forces in various directions, so that the sleeve and the fixed cylinder can be more reliably fixed in the corresponding positions after installation, reducing problems such as damage to the connection parts or equipment tilting caused by uneven force. The interior of the fixed cylinder is fixedly connected with an expansion ring, which is rotatably adapted to the internal concave and convex of the fixed cylinder, and the end of the fixed cylinder close to the middle component is fixedly connected with a protrusion, and the top of the fixed cylinder is fixedly connected with an interface end.

[0007] Preferably, the cleaning component includes a fixed ring, which is rotatably connected to the sleeve, the fixed ring is located in the middle of the sleeve and the connecting seat, and a straight rod is fixedly connected to the outer side of the fixed ring. There are two fixed rings, which are symmetrically arranged with the straight rod as the center. The voltage transformer placed outdoors is arranged at a high altitude. Under the flow of external wind, the arc plate is forced to drive the fixed ring to rotate on the outer side of the sleeve, so that the fixed ring drives the straight rod and the arc block to rotate on the outer side of the convex ring. At this time, the arc block cleans the convex ring, and by cleaning the pollutants on the outer surface of the sleeve, it helps to maintain a uniform distribution of the electric field around the voltage transformer. When pollutants are attached to the outer side of the sleeve, It may change the distribution of the electric field and cause local electric field distortion, which in turn affects the measurement precision and accuracy of the transformer. By keeping the outside of the sleeve clean, the normal distribution of the electric field can be ensured, and the electrical performance and measurement reliability of the voltage transformer can be improved. At the same time, by setting the outer arc plate, the flow of air on the outside of the sleeve is accelerated to improve the heat dissipation effect. An arc block is fixedly connected to one end of the straight rod close to the fixed ring. There are multiple arc blocks, and the multiple arc blocks are arranged on the edge of the straight rod. An arc plate is fixedly connected to the outside of the straight rod. The arc block is located in the middle of the two convex rings. There are multiple arc plates, and the multiple arc plates are evenly distributed with the fixed ring as the center.

[0008] Preferably, the middle component includes an middle rod, which is fixedly installed in the middle of the top of the box body, and the top of the middle rod is fixedly connected with an extension block, which is a trapezoidal block, and the top of the extension block is fixedly connected with a return spring. During the installation process, the elastic performance of the return spring is utilized to enable the limit block to drive the top circular plate to fit tightly with the top interface end. The tight fit can maximize the contact area between the circular plate and the top interface end, thereby effectively reducing the contact resistance, reducing the heat problem caused by poor contact, and improving the reliability of the electrical connection. It can also prevent the circular plate from being displaced or shaken due to external forces such as vibration and impact during the operation of the equipment. The top of the return spring is fixedly connected with the limit block, and the limit block is to be arranged on the outer side of the extension block, and the inner side of the limit block is slidably connected to the outer side of the extension block. The contact surface between the limit block and the extension block is inclined, and a slide groove is provided on the side of the limit block close to the middle rod, and the slide groove is spirally arranged. A cylinder is arranged on the outer side of the limit block, and the inner wall of the cylinder is fixedly connected with a slide groove. The outer side of the cylinder is provided with a spiral groove, and the fixed cylinder is installed on the sleeve, and the fixed cylinder and the spiral sleeve are rotatably connected, so that the fixed cylinder drives the protrusion on the spiral groove on the cylinder. Since the rotation direction is opposite to the thread direction of the spiral groove, the protrusion drives the cylinder to rotate in the opposite direction. At this time, the cylinder drives the slider to rotate inside the slide groove. By setting the cylinder, both the inside and the outside are threaded, which can limit the relative displacement between the components and keep them in a predetermined position relationship. It can ensure that the connection parts remain in a fastened state during long-term use, and the nut will not loosen due to factors such as vibration, impact, and temperature change of the equipment, thereby ensuring the reliability and stability of the connection between the various components of the equipment. At the same time, by setting the cylinder, a certain sealing is achieved. The protrusion is located inside the spiral groove, and the spiral groove and the slide groove are set oppositely. The top of the limit block is fixedly connected with a circular plate, and the circular plate contacts the bottom of the interface end.

[0009] The present invention provides a voltage transformer that is easy to install and has the following beneficial effects: 1. This easy-to-install voltage transformer uses a hexagonal frame to limit and fix the bolts to prevent the bolts from loosening during operation. This may cause the equipment to fall off completely when it is running or disturbed by external forces, causing related components of the equipment to lose connection, resulting in equipment failure, and may also cause safety accidents such as falling components and injuring people.

[0010] Second, the voltage transformer, which is easy to install, can meet the strict requirements on the installation angle of the transformer under some special measurement or protection requirements through the adjustment and rotation between the base and the box, ensuring more accurate coordination between the transformer and other electrical equipment, thereby improving the measurement accuracy and reliability of the protection device and ensuring the stable operation of the power system.

[0011] 3. The voltage transformer which is easy to install is connected by a thread between the spiral sleeve and the fixing cylinder. The thread connection can provide a tighter fit. By screwing the top sleeve of the voltage transformer with the corresponding thread of the installation part, a stable connection can be formed between the two.

[0012] Fourth, the voltage transformer which is easy to install helps to maintain the uniform distribution of the electric field around the voltage transformer by cleaning the pollutants on the outer surface of the sleeve. When pollutants are attached to the outside of the sleeve, the distribution of the electric field may be changed, resulting in local electric field distortion, thereby affecting the measurement precision and accuracy of the transformer.

[0013] 5. The voltage transformer, which is easy to install, has a round plate that fits tightly with the top interface end. The tight fit can maximize the contact area between the round plate and the top interface end, thereby effectively reducing contact resistance, reducing heating problems caused by poor contact, and improving the reliability of electrical connections. It can also prevent the round plate from being displaced or shaken due to external forces such as vibration and impact during equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the external structure of a voltage transformer that is easy to install according to the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 It is a schematic diagram of the box structure of the present invention; Figure 4 It is a bottom view structural schematic diagram of the fixing assembly of the present invention; Figure 5 This is a schematic diagram of the structure of the protection component of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the protection component of the present invention; Figure 7 This is a schematic diagram of the cleaning component structure of the present invention; Figure 8 It is a schematic diagram of the cross-sectional structure of the intermediate component of the present invention.

[0015] In the figure: 1. box body; 2. fixing component; 21. base; 22. fixing frame; 23. ring groove; 24. compression spring; 25. round rod; 26. fixing rod; 27. hexagonal frame; 28. ring plate; 3. protection component; 31. sleeve; 32. convex ring; 33. spiral sleeve; 34. expansion ring; 35. convex block; 36. fixing cylinder; 37. interface end; 38. connecting seat; 4. intermediate component; 41. intermediate rod; 42. extension block; 43. limit block; 44. cylinder; 45. slider; 46. spiral groove; 47. slide groove; 48. reset spring; 49. round plate; 5. terminal box; 6. electromagnetic unit; 7. cleaning component; 71. fixing ring; 72. arc block; 73. straight rod; 74. arc plate; 8. heat sink. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0017] The first embodiment, as Figures 1 to 4 As shown, the present invention provides a technical solution: a voltage transformer that is easy to install, including a box body 1, an electromagnetic unit 6 is fixedly installed inside the box body 1, and the electromagnetic unit 6 is composed of an intermediate transformer, a compensating reactor and a damper. A terminal box 5 is fixedly connected to the outside of the box body 1, and a heat sink 8 is fixedly connected to the outside of the box body 1; A fixing component 2, which is used for supporting and fixing, and is fixedly installed at the bottom of the box body 1; The middle component 4 is fixedly installed at the middle of the top of the box body 1; The protection component 3 is fixedly mounted on the top of the box body 1 and sleeved on the outside of the intermediate component 4. The voltage transformers are threadedly connected to facilitate installation. The voltage transformers are split into several parts for transportation. The size and weight of each part are greatly reduced, making it easier to carry and load onto various transportation tools, such as small trucks and containers, etc., thereby improving the flexibility and operability of transportation and reducing the vibration and impact they are subjected to during transportation, thereby effectively reducing the risk of equipment damage and reducing the transportation damage rate of the equipment; A cleaning component 7, the cleaning component 7 is rotatably connected to the outer side of the protection component 3; Among them, the fixing component 2 includes a base 21, which is rotatably connected to the bottom of the box body 1. Through the adjustment and rotation between the base 21 and the box body 1, the strict requirements on the installation angle of the transformer under some special measurement or protection requirements can be met, ensuring that the coordination between the transformer and other electrical equipment is more accurate, thereby improving the measurement accuracy and the reliability of the protection device, and ensuring the stable operation of the power system. A round rod 25 is slidably connected to the bottom of the base 21, and a compression spring 24 is fixedly connected to the end of the round rod 25 close to the base 21. The compression spring 24 is fixedly connected to the base 21, and a fixing rod 26 is fixedly connected to the end of the round rod 25 away from the base 21. The voltage transformer is placed in the designated installation position, and the bottom fixing frame 22 is driven to rotate by the base 21, so that the annular groove 23 on the fixing frame 22 and the bottom mounting hole are located on the same vertical line. Under the action of the equipment's own gravity, the fixing rod 26 is forced to move toward the base 21, so that the compression spring 24 is compressed and deformed, driving the round rod 25 and the fixing rod 26 to slide inside the base 21, so that the hexagonal frame 27 is located inside the fixing frame 22. At this time, the hexagonal frame 27 limits the bolts to prevent the bolts from loosening during operation, causing the equipment to fall off completely when it is running or disturbed by external forces, causing the related parts of the equipment to lose connection, resulting in equipment failure, and may also cause safety accidents such as parts falling and injuring people. There are four fixing rods 26, and the four fixing rods 26 are evenly distributed with the round rod 25 as the center. The end of the fixing rod 26 away from the round rod 25 is fixedly connected to the hexagonal frame 27, and the bottom of the box body 1 is fixedly connected to the fixing frame 22. The end of the fixing frame 22 close to the hexagonal frame 27 is provided with a ring groove 23.

[0018] There are four fixed frames 22 , which are evenly distributed around the base 21 . The fixed frames 22 are U-shaped, and a ring plate 28 is fixedly connected inside the hexagonal frame 27 . The ring plate 28 is elastic.

[0019] The second embodiment is based on the first embodiment. Figures 5 to 7As shown, the protective component 3 includes a sleeve 31, which is fixedly connected to the top of the box body 1, and a convex ring 32 is fixedly connected to the outer side of the sleeve 31. There are multiple convex rings 32, and multiple convex rings 32 are arranged on the outer side of the sleeve 31. The end of the sleeve 31 is fixedly connected to a connecting seat 38, and the connecting seat 38 is located at an end away from the box body 1. The top of the connecting seat 38 is fixedly connected to a spiral sleeve 33, and a fixed cylinder 36 is arranged on the outer side of the spiral sleeve 33. The inner wall of the fixed cylinder 36 is spirally connected to the outer side of the spiral sleeve 33, and the fixed cylinder 36 is sleeved on the outer side of the spiral sleeve 33. The spiral sleeve 33 and the fixed cylinder 36 are threadedly connected. The threaded connection can provide a relatively tight fit. By threading the top sleeve 31 of the voltage transformer with the corresponding thread of the installation part The screwing together can form a stable connection between the two, which can help to replace the sleeve 31 during subsequent maintenance, avoid affecting the voltage transformer body, extend the service life of the transformer, and further reduce production losses and safety risks that may be caused by equipment failure. At the same time, it can better withstand forces in various directions, so that the sleeve 31 and the fixed cylinder 36 can be more reliably fixed in the corresponding positions after installation, reducing problems such as damage to the connection parts or equipment tilting due to uneven force. The interior of the fixed cylinder 36 is fixedly connected with an expansion ring 34, and the expansion ring 34 is rotatably adapted to the internal concave and convex of the fixed cylinder 36. The end of the fixed cylinder 36 close to the intermediate component 4 is fixedly connected with a protrusion 35, and the top of the fixed cylinder 36 is fixedly connected with an interface end 37.

[0020] The cleaning assembly 7 includes a fixed ring 71, which is rotatably connected to the sleeve 31. The fixed ring 71 is located between the sleeve 31 and the connecting seat 38. A straight rod 73 is fixedly connected to the outer side of the fixed ring 71. There are two fixed rings 71, and the two fixed rings 71 are symmetrically arranged with the straight rod 73 as the center. The voltage transformer placed outdoors is arranged at a high altitude. Under the flow of external wind, the arc plate 74 is forced to drive the fixed ring 71 to rotate on the outer side of the sleeve 31, so that the fixed ring 71 drives the straight rod 73 and the arc block 72 to rotate on the outer side of the convex ring 32. At this time, the arc block 72 cleans the convex ring 32. By cleaning the contaminants on the outer surface of the sleeve 31, it helps to maintain a uniform distribution of the electric field around the voltage transformer. When there are contaminants on the outer side of the sleeve When attached, the distribution of the electric field may be changed, resulting in local electric field distortion, which in turn affects the measurement precision and accuracy of the transformer. By keeping the outside of the sleeve clean, the normal distribution of the electric field can be ensured, and the electrical performance and measurement reliability of the voltage transformer can be improved. At the same time, through the setting of the outer arc plate 74, the flow of air on the outside of the sleeve 31 is accelerated to improve the heat dissipation effect. An arc block 72 is fixedly connected to one end of the straight rod 73 close to the fixed ring 71. There are multiple arc blocks 72, and multiple arc blocks 72 are arranged on the edge of the straight rod 73. An arc plate 74 is fixedly connected to the outside of the straight rod 73. The arc block 72 is located in the middle of the two convex rings 32. There are multiple arc plates 74, and multiple arc plates 74 are evenly distributed with the fixed ring 71 as the center.

[0021] The third embodiment is based on the first and second embodiments. Figure 8As shown, the intermediate component 4 includes an intermediate rod 41, which is fixedly installed at the middle of the top of the box body 1. The top of the intermediate rod 41 is fixedly connected with an extension block 42, which is a trapezoidal block. The top of the extension block 42 is fixedly connected with a return spring 48. During the installation process, the elastic performance of the return spring 48 is utilized to make the limit block 43 drive the top circular plate 49 to fit closely with the top interface end 37. The close fit can maximize the contact area between the circular plate 49 and the top interface end 37, thereby effectively reducing the contact resistance, reducing the heat problem caused by poor contact, and improving the safety of the user. The reliability of the electrical connection is high, and the circular plate 49 can be prevented from being displaced or shaken due to external forces such as vibration and impact during the operation of the equipment. The top of the reset spring 48 is fixedly connected to the limit block 43, and the limit block 43 is arranged on the outer side of the extension block 42. The inner side of the limit block 43 is slidably connected to the outer side of the extension block 42. The contact surface between the limit block 43 and the extension block 42 is inclined. A slide groove 47 is provided on the side of the limit block 43 close to the middle rod 41. The slide groove 47 is spirally arranged. A cylinder 44 is arranged on the outer side of the limit block 43, and a slider 45 is fixedly connected to the inner wall of the cylinder 44. The slider 45 is located inside the slide groove 47. The cylinder 44 and the limit block 43 are slidably connected between the slider 45 and the slide groove 47. A spiral groove 46 is provided on the outer side of the cylinder 44. The fixed cylinder 36 is installed on the sleeve 31. The fixed cylinder 36 and the spiral sleeve 33 are rotatably connected, so that the fixed cylinder 36 drives the protrusion 35 on the spiral groove 46 on the cylinder 44. Since the rotation direction is opposite to the thread direction of the spiral groove 46, the protrusion 35 drives the cylinder 44 to rotate in the opposite direction. At this time, the cylinder 44 drives the slider 45 to rotate inside the slide groove 47. By setting the cylinder 44, both the inside and the outside are The threaded setting can limit the relative displacement between the components and keep them in a predetermined positional relationship. It can ensure that the connection parts remain in a tight state during long-term use and will not cause the nut to loosen due to factors such as vibration, impact, temperature change, etc. of the equipment, thereby ensuring the reliability and stability of the connection between the various components of the equipment. At the same time, by setting the cylinder 44, a certain sealing effect is achieved. The protrusion 35 is located inside the spiral groove 46, and the spiral groove 46 and the slide groove 47 are set oppositely. The top of the limit block 43 is fixedly connected with a circular plate 49, and the circular plate 49 contacts the bottom of the interface end 37.

[0022] When in use, place the voltage transformer at the designated installation position, and drive the fixed frame 22 at the bottom to rotate through the base 21, so that the annular groove 23 on the fixed frame 22 and the mounting hole at the bottom are located on the same vertical line. Under the action of the equipment's own gravity, the fixed rod 26 is forced to move toward the base 21, so that the compression spring 24 is compressed and deformed, driving the round rod 25 and the fixed rod 26 to slide inside the base 21, so that the hexagonal frame 27 is located inside the fixed frame 22. At this time, the hexagonal frame 27 limits the spiral.

[0023] The fixed cylinder 36 is installed on the sleeve 31, and the fixed cylinder 36 is rotatably connected to the spiral sleeve 33, so that the fixed cylinder 36 drives the protrusion 35 on the spiral groove 46 on the cylinder 44. Since the rotation direction is opposite to the thread direction of the spiral groove 46, the protrusion 35 drives the cylinder 44 to rotate in the opposite direction. At this time, the cylinder 44 drives the slider 45 to rotate inside the slide groove 47, thereby installing and fixing.

[0024] After installation, under the flow of external wind, the arc plate 74 is forced to drive the fixing ring 71 to rotate outside the sleeve 31, so that the fixing ring 71 drives the straight rod 73 and the arc block 72 to rotate outside the convex ring 32. At this time, the arc block 72 cleans the convex ring 32.

[0025] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A voltage transformer that is easy to install, characterized in that: include: A box (1), an electromagnetic unit (6) is fixedly installed inside the box (1), the electromagnetic unit (6) is composed of an intermediate transformer, a compensating reactor and a damper, a terminal box (5) is fixedly connected to the outside of the box (1), and a heat sink (8) is fixedly connected to the outside of the box (1); A fixing component (2), the fixing component (2) is used for supporting and fixing, and the fixing component (2) is fixedly mounted on the bottom of the box body (1); An intermediate component (4), the intermediate component (4) being fixedly mounted at the middle of the top of the box body (1); A protective component (3), the protective component (3) being fixedly mounted on the top of the box body (1), and the protective component (3) being sleeved on the outside of the middle component (4); A cleaning component (7), the cleaning component (7) being rotatably connected to the outer side of the protection component (3); The fixing assembly (2) comprises a base (21), the base (21) being rotatably connected to the bottom of the box body (1), the bottom of the base (21) being slidably connected to a round rod (25), one end of the round rod (25) close to the base (21) being fixedly connected to a compression spring (24), the compression spring (24) being fixedly connected to the base (21), one end of the round rod (25) away from the base (21) being fixedly connected to a fixing rod (26), the number of the fixing rods (26) being four, the four fixing rods (26) being evenly distributed around the round rod (25), one end of the fixing rod (26) away from the round rod (25) being fixedly connected to a hexagonal frame (27), the bottom of the box body (1) being fixedly connected to a fixing frame (22), the end of the fixing frame (22) close to the hexagonal frame (27) being provided with an annular groove (23).

2. A voltage transformer that is easy to install according to claim 1, characterized in that: There are four fixed frames (22), which are evenly distributed around the base (21), and the fixed frames (22) are U-shaped. A ring plate (28) is fixedly connected to the inside of the hexagonal frame (27), and the ring plate (28) is elastic.

3. A voltage transformer that is easy to install according to claim 2, characterized in that: The protection component (3) comprises a sleeve (31), the sleeve (31) being fixedly connected to the top of the box body (1), a convex ring (32) being fixedly connected to the outer side of the sleeve (31), the convex ring (32) being provided in a plurality of numbers, and the plurality of convex rings (32) are arranged in an array on the outer side of the sleeve (31).

4. A voltage transformer that is easy to install according to claim 3, characterized in that: The end of the sleeve (31) is fixedly connected to a connecting seat (38), the connecting seat (38) is located at an end away from the box body (1), the top of the connecting seat (38) is fixedly connected to a spiral sleeve (33), a fixing cylinder (36) is arranged on the outside of the spiral sleeve (33), and the inner wall of the fixing cylinder (36) is spirally connected to the outside of the spiral sleeve (33).

5. A voltage transformer that is easy to install according to claim 4, characterized in that: An expansion ring (34) is fixedly connected to the interior of the fixed cylinder (36), and the expansion ring (34) is rotationally adapted to the inner concave-convex part of the fixed cylinder (36). A convex block (35) is fixedly connected to one end of the fixed cylinder (36) close to the intermediate component (4), and an interface end (37) is fixedly connected to the top of the fixed cylinder (36).

6. A voltage transformer that is easy to install according to claim 5, characterized in that: The cleaning assembly (7) comprises a fixing ring (71) which is rotatably connected to the sleeve (31). The fixing ring (71) is located between the sleeve (31) and the connecting seat (38). A straight rod (73) is fixedly connected to the outer side of the fixing ring (71).

7. A voltage transformer that is easy to install according to claim 6, characterized in that: There are two fixing rings (71), and the two fixing rings (71) are symmetrically arranged with the straight rod (73) as the center. An arc block (72) is fixedly connected to one end of the straight rod (73) close to the fixing ring (71). There are multiple arc blocks (72), and the multiple arc blocks (72) are arranged on the edge line of the straight rod (73). An arc plate (74) is fixedly connected to the outer side of the straight rod (73), and the arc block (72) is located between the two convex rings (32). There are multiple arc plates (74), and the multiple arc plates (74) are evenly distributed with the fixing ring (71) as the center.

8. A voltage transformer that is easy to install according to claim 5, characterized in that: The intermediate component (4) comprises an intermediate rod (41), the intermediate rod (41) being fixedly mounted at the middle of the top of the box body (1), the top of the intermediate rod (41) being fixedly connected to an extension block (42), the extension block (42) being a trapezoidal block, the top of the extension block (42) being fixedly connected to a return spring (48), the top of the return spring (48) being fixedly connected to a limit block (43), the limit block (43) being arranged on the outer side of the extension block (42), the inner side of the limit block (43) being slidably connected to the outer side of the extension block (42).

9. A voltage transformer that is easy to install according to claim 8, characterized in that: The contact surfaces between the limit block (43) and the extension block (42) are inclined. A slide groove (47) is provided on a side of the limit block (43) close to the intermediate rod (41). The slide groove (47) is spirally arranged. A cylinder (44) is provided on the outer side of the limit block (43). A slider (45) is fixedly connected to the inner wall of the cylinder (44). The slider (45) is located inside the slide groove (47). The cylinder (44) and the limit block (43) are slidably connected via the slider (45) and the slide groove (47).

10. A voltage transformer that is easy to install according to claim 9, characterized in that: A spiral groove (46) is formed on the outer side of the cylinder (44), the protrusion (35) is located inside the spiral groove (46), the spiral groove (46) and the slide groove (47) are arranged opposite to each other, and a circular plate (49) is fixedly connected to the top of the limit block (43), and the circular plate (49) contacts the bottom of the interface end (37).

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