A voltage transformer that is convenient to install

Abstract

The present invention discloses a voltage transformer that is convenient to install. The present invention relates to the technical field of voltage transformers and includes a base. The base is rotatably connected to the bottom of the box body. A round rod is slidably connected to the bottom of the base. One end of the round rod close to the base is fixedly connected with a compression spring. The other end of the round rod far from the base is fixedly connected with a fixing rod. The number of fixing rods is four, and the four fixing rods are evenly distributed around the round rod. One end of the fixing rod far from the round rod is fixedly connected with a hexagonal frame. The bottom of the box body is fixedly connected with a fixing frame, and an annular groove is opened at one end of the fixing frame close to the hexagonal frame. For this voltage transformer that is convenient to install, the bolts are limited and fixed by the hexagonal frame, avoiding the loosening of the bolts during the working process, which may cause the bolts to completely fall off when the equipment is running or under external force interference, resulting in the loss of connection of the relevant components of the equipment, leading to equipment failure, and may also cause safety accidents such as component dropping and injuring people.

Description

Technical Field

[0001] The present invention relates to the technical field of voltage transformers, and specifically to a voltage transformer convenient for installation. Background Art

[0002] A capacitive voltage transformer is composed of series capacitors for voltage division, and then stepped down and isolated by an electromagnetic transformer, serving as a voltage transformer for meters, relay protection, etc. The 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, teletypewriter, etc. Therefore, compared with conventional electromagnetic voltage transformers, the capacitive voltage transformer can prevent ferroresonance caused by the saturation of the voltage transformer core, and has many advantages in terms of economy and safety.

[0003] Existing capacitive voltage transformers are installed at a relatively high position in the outdoor environment. Over time and with the operation vibration of the equipment, connecting parts such as installation bolts may gradually become loose. The loose connecting parts may cause deformation, fracture, etc. of components such as the installation bracket of the transformer, and then cause the transformer to fall, posing a serious safety threat to the surrounding personnel and equipment. At the same time, if the outside of the transformer is not cleaned for a long time, a large amount of dust will accumulate, affecting the working performance of the capacitive voltage transformer. Since the installation position of the capacitive voltage transformer is relatively high, manual climbing is required for cleaning, which is extremely inconvenient. Summary of the Invention

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A voltage transformer convenient for installation, including a box body, an electromagnetic unit is fixedly installed inside the box body, the electromagnetic unit is composed of an intermediate transformer, a compensation reactor and a damper, a terminal box is fixedly connected to the outside of the box body, and heat sinks are fixedly connected to the outside of the box body;

[0005] A fixing component, which is used for supporting and fixing, and is fixedly installed at the bottom of the box body;

[0006] An intermediate component, which is fixedly installed at the middle of the top of the box body;

[0007] A protection component, which is fixedly installed on the top of the box body, and the protection component is sleeved outside the intermediate component. By threadedly connecting the voltage transformers, it helps with installation. The voltage transformer is disassembled into several parts for transportation, and the size and weight of each component are greatly reduced, making it easier to handle and load onto various transportation tools, such as small trucks, containers, etc., improving the flexibility and operability of transportation, and also being able to reduce the vibration and impact they receive during transportation, thereby effectively reducing the risk of equipment damage and reducing the transportation damage rate of the equipment;

[0008] The cleaning component is rotatably connected to the outer side of the protection component;

[0009] Among them, the fixing component includes a base, and the base is rotatably connected to the bottom of the box body. By adjusting the rotation between the base and the box body, it can meet the strict requirements for the installation angle of the mutual inductor under some special measurement or protection requirements, ensure more accurate cooperation between the mutual inductor and other electrical equipment, thereby improving the measurement accuracy and the reliability of the protection device, and ensuring the stable operation of the power system. A round rod is slidably connected to the bottom of the base. One end of the round rod close to the base is fixedly connected with a compression spring, and the compression spring is fixedly connected to the base. The other end of the round rod away from the base is fixedly connected with a fixing rod. Place the voltage mutual inductor at the designated installation position. By driving the fixing frame at the bottom through the base, the annular groove on the fixing frame and the installation hole at the bottom are located on the same vertical line. Under the action of the self-gravity of the equipment, the fixing rod is stressed and moves towards the base, causing the compression spring to be stressed 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 bolt, avoiding loosening of the bolt during the working process, which may cause the equipment to completely fall off during operation or when subjected to external interference, resulting in the loss of connection of the relevant components of the equipment, leading to equipment failure, and may also cause safety accidents such as component falling and injuring people. The number of fixing rods is four, and the four fixing rods are evenly distributed around the round rod. One end of the fixing rod away from the round rod is fixedly connected with a hexagonal frame. The bottom of the box body is fixedly connected with a fixing frame, and an annular groove is opened at one end of the fixing frame close to the hexagonal frame.

[0010] The number of fixing frames is four, and the four fixing frames are evenly distributed around the base. The fixing frame is U-shaped. An annular plate is fixedly connected inside the hexagonal frame, and the annular plate has elasticity.

[0011] Preferably, the protection component includes a sleeve which is fixedly connected to the top of the box body. A convex ring is fixedly connected to the outer side of the sleeve. There are multiple convex rings which are arranged on the outer side of the sleeve. A connecting seat is fixedly connected to the end of the sleeve. The connecting seat is located at the end far from the box body. A spiral sleeve is fixedly connected to the top of the connecting seat. 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. By sleeving the fixed cylinder on the outer side of the spiral sleeve and through the threaded connection between the spiral sleeve and the fixed cylinder, the threaded connection can provide a relatively tight fit. By screwing the top sleeve of the voltage transformer with the corresponding thread of the installation part, a firm connection can be formed between the two. Further, during the subsequent maintenance process, it helps to replace the sleeve, avoids affecting the voltage transformer body, prolongs the service life of the transformer, further reduces the production losses and safety risks that may be brought by equipment failures, and at the same time can better withstand forces in various directions, enabling the sleeve and the fixed cylinder to be more reliably fixed in the corresponding positions after installation, reducing problems such as damage to the connection part or tilting of the equipment caused by uneven stress. An expansion ring is fixedly connected to the inside of the fixed cylinder. The expansion ring is rotationally and adaptively engaged with the concave and convex inside of the fixed cylinder. A convex block is fixedly connected to one end of the fixed cylinder close to the middle component. An interface end is fixedly connected to the top of the fixed cylinder.

[0012] Preferably, the cleaning component includes a fixed ring which is rotationally connected to the sleeve. The fixed ring is located between the sleeve and the connecting seat. 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 located at a high altitude. Under the flow of the external wind, the arc plate is stressed and drives the fixed ring to rotate on the outer side of the sleeve, causing the fixed ring to drive 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. By cleaning the pollutants on the outer surface of the sleeve, it helps to maintain the uniform distribution of the electric field around the voltage transformer. When there are pollutants attached to the outer side of the sleeve, it may change the distribution of the electric field, resulting in local electric field distortion, and further affecting the measurement accuracy and accuracy of the transformer. By keeping the outer side of the sleeve clean, the normal distribution of the electric field can be ensured, improving the electrical performance and measurement reliability of the voltage transformer. At the same time, through the setting of the outer arc plate, the air flow on the outer side of the sleeve is accelerated, improving 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 which are arranged on the side line of the straight rod. An arc plate is fixedly connected to the outer side of the straight rod. The arc block is located between two convex rings. There are multiple arc plates which are evenly distributed with the fixed ring as the center.

[0013] Preferably, the middle component comprises an middle rod, which is fixedly installed at 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 make the limit block drive the top circular plate to fit tightly with the top interface end, and 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 arranged on the outer side of the extension block, and the inner side of the limit block is slidably connected with 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 a slider is fixedly connected to the inner wall of the cylinder. The block is located inside the slide groove, and the cylinder and the limit block are slidably connected between the slider and the slide groove. A spiral groove is opened on the outside of the cylinder, and the fixed cylinder is installed on the sleeve. The fixed cylinder and the spiral sleeve are rotatably connected, so that the fixed cylinder drives the convex block on the spiral groove on the cylinder. Since the rotation direction is opposite to the thread direction of the spiral groove, the convex block 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 tight state during long-term use, and the nut will not loosen due to factors such as vibration, impact, and temperature changes 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 performance is achieved. The convex block is located inside the spiral groove, and the spiral directions between the spiral groove and the slide groove are set in opposite directions. A circular plate is fixedly connected to the top of the limit block, and the circular plate contacts the bottom of the interface end.

[0014] The present invention provides a voltage transformer that is easy to install and has the following beneficial effects:

[0015] 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.

[0016] 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.

[0017] III. The voltage transformer that is easy to install is threadedly connected between the screw sleeve and the fixed cylinder. The threaded connection can provide a relatively tight 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.

[0018] IV. For the voltage transformer that is easy to install, by cleaning the contaminants on the outer surface of the sleeve, it helps to maintain the uniform distribution of the electric field around the voltage transformer. When there are contaminants attached to the outer side of the sleeve, it may change the distribution of the electric field, resulting in local electric field distortion, and then affecting the measurement accuracy and accuracy of the transformer.

[0019] V. For the voltage transformer that is easy to install, by closely fitting the circular plate with the interface end at the top, the close fit can maximize the contact area between the circular plate and the top interface end, thereby effectively reducing the contact resistance, reducing the heat generation problem caused by poor contact, improving the reliability of the electrical connection, and preventing the circular plate from shifting or shaking due to external forces such as vibration and impact during the operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the external structure of a voltage transformer that is easy to install according to the present invention;

[0021] Figure 2 is a schematic diagram of the cross-sectional structure of the present invention;

[0022] Figure 3 is a schematic diagram of the box structure of the present invention;

[0023] Figure 4 is a schematic diagram of the bottom view structure of the fixing component of the present invention;

[0024] Figure 5 is a schematic diagram of the protection component of the present invention;

[0025] Figure 6 is a schematic diagram of the cross-sectional structure of the protection component of the present invention;

[0026] Figure 7 is a schematic diagram of the cleaning component of the present invention;

[0027] Figure 8 is a schematic diagram of the cross-sectional structure of the intermediate component of the present invention.

[0028] 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. Slide block; 46. Spiral groove; 47. Slide groove; 48. Return spring; 49. Round plate; 5. Terminal box; 6. Electromagnetic unit; 7. Cleaning component; 71. Fixed ring; 72. Arc block; 73. Straight rod; 74. Arc plate; 8. Heat sink. Detailed implementation mode

[0029] The present invention will be further described in detail below in conjunction with the drawings and specific implementation modes. The embodiments of the present invention are given for the purpose of illustration and description, and are not exhaustive or limited to the disclosed form. Many modifications and variations will be obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

[0030] In the first embodiment, as Figures 1 to 4 shown, the present invention provides a technical solution: a voltage transformer convenient for installation, including a box body 1, an electromagnetic unit 6 is fixedly installed inside the box body 1, the electromagnetic unit 6 is composed of an intermediate transformer, a compensation 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;

[0031] A fixing component 2, which is used for supporting and fixing, and the fixing component 2 is fixedly installed at the bottom of the box body 1;

[0032] An intermediate component 4, which is fixedly installed at the middle of the top of the box body 1;

[0033] A protection component 3, which is fixedly installed on the top of the box body 1, and the protection component 3 is sleeved outside the intermediate component 4. By threadedly connecting the voltage transformers, it helps with installation. The voltage transformers are disassembled into several parts for transportation, and the size and weight of each component are greatly reduced, making it easier to handle and load onto various transportation tools, such as small trucks, containers, etc., improving the flexibility and operability of transportation, and also being able to reduce the vibration and impact they receive during transportation, thereby effectively reducing the risk of equipment damage and reducing the transportation damage rate of the equipment;

[0034] A cleaning component 7, which is rotatably connected to the outside of the protection component 3;

[0035] 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.

[0036] 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 to the inside of the hexagonal frame 27 . The ring plate 28 is elastic.

[0037] The second embodiment is based on the first embodiment. Figures 5 to 7As shown, the protection component 3 includes a sleeve 31, which is fixedly connected to the top of the box body 1. A convex ring 32 is fixedly connected to the outside of the sleeve 31. The number of convex rings 32 is multiple, and the multiple convex rings 32 are arranged on the outside of the sleeve 31. A connecting seat 38 is fixedly connected to the end of the sleeve 31. The connecting seat 38 is located at the end far from the box body 1. A spiral sleeve 33 is fixedly connected to the top of the connecting seat 38. A fixing cylinder 36 is arranged on the outside of the spiral sleeve 33. The inner wall of the fixing cylinder 36 is spirally connected to the outside of the spiral sleeve 33. The fixing cylinder 36 is sleeved on the outside of the spiral sleeve 33. Through the threaded connection between the spiral sleeve 33 and the fixing cylinder 36, the threaded connection can provide a relatively tight fit. By screwing the top sleeve 31 of the voltage transformer with the corresponding thread of the installation part, a firm connection can be formed between the two. Furthermore, during subsequent maintenance, it helps to replace the sleeve 31, avoiding affecting the voltage transformer body, extending the service life of the transformer, further reducing the production losses and safety risks that may be brought about by equipment failures. At the same time, it can better withstand forces in various directions, enabling the sleeve 31 and the fixing cylinder 36 to be more reliably fixed in their corresponding positions after installation, reducing problems such as damage to the connection part or equipment tilt caused by uneven force. An expansion ring 34 is fixedly connected to the inside of the fixing cylinder 36. The expansion ring 34 is adaptively connected to the inside of the fixing cylinder 36 in a concave-convex and rotatable manner. A convex block 35 is fixedly connected to one end of the fixing cylinder 36 close to the intermediate component 4. An interface end 37 is fixedly connected to the top of the fixing cylinder 36.

[0038] The cleaning assembly 7 includes a fixed ring 71. The fixed ring 71 is rotatably connected to the sleeve 31. The fixed ring 71 is located between the sleeve 31 and the connection 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 set at a high altitude. Under the flow of the external wind, the arc plate 74 is stressed 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 pollutants on the outer surface of the sleeve 31, it helps to maintain the uniform distribution of the electric field around the voltage transformer. When there are pollutants attached to the outer side of the sleeve, it may change the distribution of the electric field, resulting in local electric field distortion, and then affecting the measurement accuracy and reliability of the transformer. By keeping the outer side of the sleeve clean, the normal distribution of the electric field can be ensured, improving the electrical performance and measurement reliability of the voltage transformer. At the same time, through the setting of the outer arc plate 74, the flow of the air on the outer side of the sleeve 31 is accelerated, improving the heat dissipation effect. One end of the straight rod 73 close to the fixed ring 71 is fixedly connected with an arc block 72. There are multiple arc blocks 72, and the multiple arc blocks 72 are arranged on the side line of the straight rod 73. An arc plate 74 is fixedly connected to the outer side of the straight rod 73. 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 fixed ring 71 as the center.

[0039] The third embodiment, on the basis of the first and second embodiments, please refer to 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. The extension block 42 is a trapezoidal block. The top of the extension block 42 is fixedly connected with a return spring 48. During the installation process, by using the elastic performance of the return spring 48, the limiting block 43 drives the circular plate 49 at the top to be closely attached to the top interface end 37. The close attachment can make the contact area between the circular plate 49 and the top interface end 37 reach the maximum, thereby effectively reducing the contact resistance, reducing the heating problem caused by poor contact, improving the reliability of electrical connection, and preventing the circular plate 49 from shifting or shaking due to external forces such as vibration and impact during the operation of the equipment. The top of the return spring 48 is fixedly connected with a limiting block 43. The limiting block 43 is arranged outside the extension block 42. The inner side of the limiting block 43 is slidably connected with the outer side of the extension block 42. The contact surface between the limiting block 43 and the extension block 42 is inclined. A chute 47 is opened on the side of the limiting block 43 close to the intermediate rod 41. The chute 47 is helically arranged. A cylinder 44 is arranged outside the limiting block 43. The inner wall of the cylinder 44 is fixedly connected with a slider 45. The slider 45 is located inside the chute 47. The cylinder 44 and the limiting block 43 are slidably connected through the slider 45 and the chute 47. A spiral groove 46 is opened on the outer side of the cylinder 44. The fixed cylinder 36 is installed on the sleeve 31. The fixed cylinder 36 is rotatably connected with the spiral sleeve 33, so that the fixed cylinder 36 drives the convex block 35 on the spiral groove 46 of the cylinder 44. Since the rotation direction is opposite to the thread direction of the spiral groove 46, the convex block 35 drives the cylinder 44 to rotate in the reverse direction. At this time, the cylinder 44 drives the slider 45 to rotate inside the chute 47. By setting the cylinder 44, both the inside and outside are threaded, which can limit the relative displacement between components and keep them in a predetermined positional relationship, ensuring that the connection part remains tightened during long-term use and 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 various components of the equipment. At the same time, by setting the cylinder 44, it plays a certain sealing role. The convex block 35 is located inside the spiral groove 46. The spiral groove 46 and the chute 47 are arranged in the opposite direction. The top of the limiting block 43 is fixedly connected with a circular plate 49. The circular plate 49 contacts the bottom of the interface end 37.

[0040] When in use, place the voltage transformer at the designated installation position. 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 bottom installation hole are on the same vertical line. Under the action of the self-gravity of the equipment, the fixed rod 26 is stressed and moves towards the direction of the base 21, causing the compression spring 24 to be stressed 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 and fixes the helix.

[0041] The fixing cylinder 36 is installed on the sleeve 31. The fixing cylinder 36 is rotatably connected to the spiral sleeve 33, so that the fixing cylinder 36 drives the convex block 35 on the spiral groove 46 of the cylinder 44. Since the rotation direction is opposite to the thread direction of the spiral groove 46, the convex block 35 drives the cylinder 44 to rotate in the reverse direction. At this time, the cylinder 44 drives the slider 45 to rotate inside the chute 47, so as to carry out installation and fixation.

[0042] After installation, under the flow of external wind, the arc plate 74 is stressed to drive the fixing ring 71 to rotate on the outside of the sleeve 31, so that the fixing ring 71 drives the straight rod 73 and the arc block 72 to rotate on the outside of the convex ring 32. At this time, the arc block 72 cleans the convex ring 32.

[0043] Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention shall be implemented by conventional means in the art without special instructions and limitations.

Claims

1. A voltage transformer that is convenient to install, characterized in that, Comprising: A box body (1), inside which an electromagnetic unit (6) is fixedly installed. The electromagnetic unit (6) is composed of an intermediate transformer, a compensation 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); An intermediate component (4) which is fixedly installed at the middle of the top of the box body (1); A protection component (3) which is fixedly installed at the top of the box body (1) and sleeved outside the intermediate component (4); A cleaning component (7) which is rotatably connected to the outside 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). A round rod (25) is slidably connected to the bottom of the base (21). One end of the round rod (25) close to the base (21) is fixedly connected with a compression spring (24), and the compression spring (24) is fixedly connected with the base (21). The other end of the round rod (25) away from the base (21) is fixedly connected with a fixing rod (26). The number of the fixing rods (26) is four, and the four fixing rods (26) are evenly distributed around the round rod (25). One end of the fixing rod (26) away from the round rod (25) is fixedly connected with a hexagonal frame (27). A fixing frame (22) is fixedly connected to the bottom of the box body (1), and an annular groove (23) is opened at one end of the fixing frame (22) close to the hexagonal frame (27).

2. The voltage transformer convenient for installation according to claim 1, characterized in that: The number of the fixing frames (22) is four, and the four fixing frames (22) are evenly distributed around the base (21). The fixing frame (22) is U-shaped. An annular plate (28) is fixedly connected inside the hexagonal frame (27), and the annular plate (28) has elasticity.

3. The voltage transformer convenient for installation according to claim 2, wherein: The protection component (3) includes a sleeve (31) which is fixedly connected to the top of the box body (1). A convex ring (32) is fixedly connected to the outside of the sleeve (31). The number of the convex rings (32) is multiple, and the multiple convex rings (32) are arranged on the outside of the sleeve (31).

4. The voltage transformer convenient for installation according to claim 3, characterized in that: A connecting seat (38) is fixedly connected to the end of the sleeve (31) at the end away from the box body (1). A spiral sleeve (33) is fixedly connected to the top of the connecting seat (38). 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. The voltage transformer convenient for installation according to claim 4, characterized in that: An expansion ring (34) is fixedly connected inside the fixing cylinder (36), and the expansion ring (34) is in concave-convex rotational fit with the inside of the fixing cylinder (36). A convex block (35) is fixedly connected to one end of the fixing cylinder (36) close to the intermediate component (4), and an interface end (37) is fixedly connected to the top of the fixing cylinder (36).

6. The voltage transformer convenient for installation according to claim 5, characterized in that: The cleaning component (7) includes a fixing ring (71), the fixing ring (71) is rotatably connected to the sleeve (31), the fixing ring (71) is located between the sleeve (31) and the connecting seat (38), and a straight rod (73) is fixedly connected to the outer side of the fixing ring (71).

7. The voltage transformer convenient for installation according to claim 6, wherein: There are two fixing rings (71), 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 side line of the straight rod (73). An arc plate (74) is fixedly connected to the outer side of the straight rod (73), 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 convenient for installation according to claim 5, characterized in that: The intermediate component (4) includes an intermediate rod (41), the intermediate rod (41) is fixedly installed at the middle of the top of the box body (1), an extension block (42) is fixedly connected to the top of the intermediate rod (41), the extension block (42) is a trapezoidal block, a return spring (48) is fixedly connected to the top of the extension block (42), a limit block (43) is fixedly connected to the top of the return spring (48), the limit block (43) is arranged outside the extension block (42), and the inner side of the limit block (43) is slidably connected to the outer side of the extension block (42).

9. A voltage transformer that is convenient for installation according to claim 8, characterized in that: The contact surface between the limit block (43) and the extension block (42) is inclined, a chute (47) is opened on one side of the limit block (43) close to the intermediate rod (41), the chute (47) is helically arranged, a cylinder (44) is arranged outside 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 chute (47), and the cylinder (44) and the limit block (43) are slidably connected through the slider (45) and the chute (47).

10. A voltage transformer that is convenient for installation according to claim 9, characterized in that: A spiral groove (46) is opened on the outer side of the cylinder (44), the convex block (35) is located inside the spiral groove (46), the spiral directions of the spiral groove (46) and the chute (47) are opposite, 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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