Transformer assembly for safety isolation of distribution network

Abstract

The invention relates to the related technical field of power equipment, and discloses a transformer assembly for distribution network safety isolation, which comprises a main body and further comprises an unlocking mechanism, the unlocking mechanism is arranged on the front surface of the main body, and when a cable is fixed by a worker through a bolt, the unlocking mechanism enables a threaded hole to rotate along with the bolt after the cable is fixed; the reinforcing mechanism is mounted at the bottom of the unlocking mechanism; the reinforcing mechanism increases a clamping force for the cable when the cable is fixed. According to the invention, due to the arrangement of the lotus block, the movable nut can rotate along with the bolt when the cable is fixed, so that the phenomenon of slipping of the bolt is reduced, the service life of the bolt and the movable nut is prolonged, and the safety of the isolation transformer is indirectly improved.

Description

Technical Field

[0001] This invention relates to the technical field of power equipment, specifically to a transformer assembly for distribution network safety isolation. Background Technology

[0002] An isolation transformer is a device that transfers energy through electromagnetic induction and establishes electrical isolation between the input and output circuits. On the one hand, it fundamentally eliminates the risk of electric shock by forming a floating circuit, providing crucial safety for humid environments, medical equipment, and factory maintenance; on the other hand, it effectively eliminates ground loop interference and suppresses power supply noise, ensuring clean power supply and stable operation for precision instruments, data centers, and communication systems.

[0003] Transformers used for power distribution network isolation and safety need to be connected to external cables during operation. Existing isolation transformers often use bolts to connect the cables. Since the bolts are secured by their threads, to ensure the cable is firmly fixed, they are often tightened again after clamping the cable. Because the cable is already clamped, the bolts are difficult to tighten downwards and instead rotate horizontally within the threaded hole. When the bolt rotates horizontally, the threads squeeze against each other, easily causing damage and slippage to the threads on the bolt or threaded hole. This reduces the service life of the bolt and threaded hole, affecting the safety of the isolation transformer. Summary of the Invention

[0004] The purpose of this invention is to provide a transformer assembly for power distribution network safety isolation, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a transformer assembly for distribution network safety isolation, comprising a main body and further comprising:

[0007] The unlocking mechanism is installed on the front of the main body. When the operator fixes the cable with bolts, the presence of the unlocking mechanism will cause the threaded hole to rotate with the bolt after the cable is fixed.

[0008] The reinforcement mechanism is installed at the bottom of the unlocking mechanism and adds clamping force to the cable when it is secured.

[0009] Furthermore, the main body includes:

[0010] The fixing component is mounted on the front of the main body;

[0011] The power-conducting component is mounted on top of the fixed component.

[0012] Furthermore, the unlocking mechanism includes a movable nut disposed inside the fixed component, and the outer wall of the movable nut has several grooves, which are distributed circumferentially around the movable nut.

[0013] The unlocking mechanism also includes:

[0014] The control component is installed inside the power-on component;

[0015] Limiting components are installed at the bottom of the control components.

[0016] Furthermore, the enhanced institutions include:

[0017] The linkage component is installed on the outside of the limit component;

[0018] Auxiliary components are installed at the bottom of the linkage components.

[0019] Furthermore, the fixing component includes two fixing blocks fixedly connected to the side wall of the main body, and the two fixing blocks are symmetrically distributed with the main body as the center;

[0020] Two coils are provided on the top of the fixing block. Both coils are fixedly connected to the inner wall of the main body, and the two coils are symmetrically distributed with the main body as the center.

[0021] Two placement blocks are provided on the top of the coil, and the two placement blocks are fixedly connected to the front and back of the main body respectively;

[0022] The placement block has several parts compartments inside, and the parts compartments are arranged at equal intervals along the edge of the placement block;

[0023] The movable nut is located in the parts compartment.

[0024] Furthermore, the power-on assembly includes a connecting block that is slidably connected to the top of the parts compartment, and a pressing block is provided on the top of the connecting block, the pressing block being slidably connected to the top of the parts compartment;

[0025] The top of the extrusion block is slidably connected to a bolt, which rotates to penetrate into the interior of the parts compartment.

[0026] Furthermore, the control component includes a lotus block that is slidably connected inside the parts compartment. Several movable plates are rotatably connected to the bottom of the lotus block, and the movable plates are arranged in pairs around the center circumference of the lotus block.

[0027] One of the movable plates in each group has a spring plate fixedly connected to its side wall, and the other movable plate has a spring fixedly connected to its side wall.

[0028] The end of the spring furthest from the movable plate is fixedly connected to the inner wall of the lotus block.

[0029] The inner wall of the lotus block is slidably connected to the outer wall of the movable nut.

[0030] The lotus-shaped block slides into the groove.

[0031] Furthermore, the limiting component includes four linkage blocks fixedly connected to the outer wall of the lotus block, with the four linkage blocks arranged in pairs symmetrically around the lotus block as the center;

[0032] Each set of linkage blocks has a C-shaped block slidingly connected to its outer surface;

[0033] The bottom of the C-shaped block is rotatably connected to several connecting rods, which are distributed at equal angles to the C-shaped block.

[0034] Furthermore, the linkage component includes a lifting ring that is rotatably connected to the bottom of the connecting rod;

[0035] The top of the lifting ring is equipped with several extrusion plates, which are fixedly connected to the outer wall of the lotus block. The extrusion plates are distributed circumferentially around the lotus block.

[0036] Furthermore, the auxiliary components include an O-ring fixedly connected to the bottom of the lifting ring, with the bottom of the O-ring fixedly connected to the inner wall of the bottom of the parts compartment;

[0037] The O-ring has several notches on its sidewall and several rubber strips are fixedly connected to its outer wall. These rubber strips are distributed circumferentially around the O-ring.

[0038] 1. In this invention, due to the setting of the lotus block, the movable nut will rotate with the bolt when the cable is fixed, thereby reducing the occurrence of bolt stripping and improving the service life of the bolt and movable nut, which indirectly increases the safety of the isolation transformer.

[0039] 2. In this invention, when the extrusion block extrudes the cable, the lotus block is subjected to force on one side, causing uneven outward expansion of the lotus block and preventing the movable nut from locking properly. The C-shaped block reduces the uneven deformation of the lotus block, thereby improving the synchronization rate of the lotus block and the stability of the lotus block during locking.

[0040] 3. In this invention, the cable is subjected to an upward thrust from the connecting block to the highest point, and before the bolt rotates in the opposite direction, the cable is subjected to an upward thrust from the connecting block. Due to the setting of the extrusion plate, the problem of the cable not being securely fixed is reduced because the lotus block moves downward with the connecting block, thereby improving the firmness of the cable clamping.

[0041] 4. In this invention, the rubber strip on the O-ring will gradually move closer to the movable nut, and the other side of the rubber strip that is not in contact with the movable nut will contact the inner wall of the parts compartment, so that the movable nut is fixed in the center position during the deformation of the rubber strip. Due to the setting of the O-ring, the uncertainty and stability of the position of the movable nut when the bolt stops reversing are reduced, thereby improving the stability of the movable nut.

[0042] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0043] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0045] Figure 2 This is a schematic diagram of the overall partial cross-sectional structure of the present invention;

[0046] Figure 3 For the present invention Figure 2 Enlarged view of A in the middle;

[0047] Figure 4 This is a schematic diagram of the control component of the present invention;

[0048] Figure 5 For the present invention Figure 4 Enlarged view of B in the middle;

[0049] Figure 6 This is a schematic diagram of the limiting component of the present invention;

[0050] Figure 7 This is a schematic diagram of the linkage component of the present invention;

[0051] Figure 8 This is a schematic diagram of the auxiliary components of the present invention;

[0052] Figure 9 This is an exploded view of the components of the present invention.

[0053] The attached diagram lists the components represented by each number as follows:

[0054] In the diagram: 1. Main body; 11. Fixing component; 111. Fixing block; 112. Coil; 113. Placement block; 114. Parts compartment; 12. Power-on component; 121. Connecting block; 122. Extrusion block; 123. Bolt; 2. Unlocking mechanism; 201. Movable nut; 21. Control component; 211. Lotus block; 212. Movable plate; 213. Spring plate; 214. Spring; 22. Limiting component; 221. Linkage block; 222. C-shaped block; 223. Connecting rod; 3. Reinforcing mechanism; 31. Linkage component; 311. Lifting ring; 312. Extrusion plate; 32. Auxiliary component; 321. O-ring; 322. Rubber strip. Detailed Implementation

[0055] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0056] Please see Figure 1 - Figure 9 As shown, the present invention is a transformer assembly for distribution network safety isolation, including a main body 1, and further comprising:

[0057] Unlocking mechanism 2 is installed on the front of the main body 1. When the operator fixes the cable with bolts, the presence of unlocking mechanism 2 will cause the threaded hole to rotate with the bolt after the cable is fixed.

[0058] The reinforcement mechanism 3 is installed at the bottom of the unlocking mechanism 2. The reinforcement mechanism 3 increases the clamping force on the cable when the cable is fixed.

[0059] Entity 1 includes:

[0060] Fixing component 11 is installed on the front of the main body 1;

[0061] Power-conducting component 12 is mounted on top of fixed component 11.

[0062] The unlocking mechanism 2 includes a movable nut 201 disposed inside the fixed component 11. The outer wall of the movable nut 201 has a plurality of grooves, which are distributed circumferentially around the movable nut 201.

[0063] Unlocking mechanism 2 also includes:

[0064] Control component 21 is installed inside the power supply component 12;

[0065] Limiting component 22 is installed at the bottom of control component 21.

[0066] Enhancement mechanism 3 includes:

[0067] Linkage component 31 is installed on the outside of limit component 22;

[0068] Auxiliary component 32 is installed at the bottom of linkage component 31.

[0069] The fixing component 11 includes two fixing blocks 111 fixedly connected to the side wall of the main body 1, and the two fixing blocks 111 are symmetrically distributed with the main body 1 as the center;

[0070] Two coils 112 are provided on the top of the fixing block 111. Both coils 112 are fixedly connected to the inner wall of the main body 1. The two coils 112 are symmetrically distributed with the main body 1 as the center.

[0071] Two placement blocks 113 are provided on the top of the coil 112, and the two placement blocks 113 are fixedly connected to the front and back of the main body 1 respectively;

[0072] The placement block 113 has several parts compartments 114 inside, and the parts compartments 114 are arranged at equal intervals along the edge of the placement block 113;

[0073] The movable nut 201 is located in the parts compartment 114. Since the windings of the two coils 112 are all the same, the current is transmitted through the electromagnetic coupling between the two coils 112. Therefore, if the staff touches the neutral wire or the live wire at the secondary output end, there will be no electric shock.

[0074] The power-on assembly 12 includes a connecting block 121 slidably connected to the top of the parts compartment 114, and a pressing block 122 is provided on the top of the connecting block 121. The pressing block 122 is slidably connected to the top of the parts compartment 114.

[0075] A bolt 123 is slidably connected to the top of the extrusion block 122. The bolt 123 rotates and penetrates into the interior of the parts compartment 114. The rotation of the bolt 123 causes the extrusion block 122 to move downward, pushing the cable to fit tightly against the bottom connecting block 121 and fixing the cable.

[0076] The control component 21 includes a lotus block 211 that is slidably connected inside the parts compartment 114. Several movable plates 212 are rotatably connected to the bottom of the lotus block 211. The movable plates 212 are arranged in pairs around the center circumference of the lotus block 211.

[0077] One of the movable plates 212 in each group has a spring plate 213 fixedly connected to its side wall, and the other movable plate 212 has a spring 214 fixedly connected to its side wall. The end of the spring plate 213 away from the movable plate 212 is fixedly connected to the side wall of the lotus block 211.

[0078] The end of spring 214 away from movable plate 212 is fixedly connected to the inner wall of lotus block 211;

[0079] The inner wall of the lotus block 211 is slidably connected to the outer wall of the movable nut 201;

[0080] The lotus block 211 is slidably connected to the inside of the groove. The deformation of the lotus block 211 causes the movable plate 212 to move outward, so that the movable plate 212 gradually disengages from the groove provided on the movable nut 201.

[0081] The limiting component 22 includes four linkage blocks 221 fixedly connected to the outer wall of the lotus block 211. The four linkage blocks 221 are symmetrically distributed in pairs around the lotus block 211.

[0082] Each set of linkage blocks 221 has a C-shaped block 222 slidably connected to its outer surface;

[0083] The bottom of the C-shaped block 222 is rotatably connected to several connecting rods 223. The connecting rods 223 are distributed at equal angles to the C-shaped block 222. The linkage block 221 on the outer wall of the lotus block 211 will move upward with the lotus block 211. The upward movement of the linkage block 221 will drive the lifting ring 311 to move upward through the connecting rods 223.

[0084] Linkage component 31 includes a lifting ring 311 that is rotatably connected to the bottom of connecting rod 223;

[0085] The top of the lifting ring 311 is provided with several extrusion plates 312, which are fixedly connected to the outer wall of the lotus block 211. The extrusion plates 312 are distributed circumferentially around the lotus block 211. As the lifting ring 311 is driven to move upward by the upward movement of the C-shaped block 222, and as the lifting ring 311 slides on the surface of the movable nut 201, the entire lifting ring 311 moves together and remains horizontal.

[0086] The auxiliary component 32 includes an O-ring 321 fixedly connected to the bottom of the lifting ring 311, and the bottom of the O-ring 321 is fixedly connected to the inner wall of the bottom of the parts compartment 114.

[0087] The side wall of the O-ring 321 has several notches, and several rubber strips 322 are fixedly connected to the outer wall of the O-ring 321. The rubber strips 322 are distributed circumferentially around the O-ring 321. Since the bottom of the O-ring 321 is connected to the inner wall of the parts compartment 114, the O-ring 321 at the bottom of the lifting ring 311 will deform when the lifting ring 311 rises.

[0088] In use, the operator connects the live cable to the primary input terminal, and then connects two or more connecting wires from the secondary output terminal. The operator then uses a screwdriver to turn bolt 123. The rotation of bolt 123 causes the clamping block 122 to move downwards, pushing the cable tightly against the bottom connecting block 121, thus securing the cable. When the primary input terminal is energized, since the two coils 112 have identical windings, current is transmitted through electromagnetic coupling between the two coils 112. Therefore, if the operator touches the neutral or live wire at the secondary output terminal, there will be no risk of electric shock, thus improving personnel safety.

[0089] When bolt 123 rotates, the rotation of bolt 123 causes the pressing block 122 to move downward, which in turn causes the cable to press downward against the connecting block 121. This causes the connecting block 121 to move downward as bolt 123 rotates. The downward movement of the connecting block 121 causes the lotus block 211 to displace downward. When the lotus block 211 moves downward, its interior is blocked by the bottom movable nut 201, causing an upward thrust on the side wall of the lotus block 211. Since the lotus block 211 is still in a descending state, it deforms. Due to the deformation of the lotus block 211… This causes the movable plate 212 to move outward, gradually disengaging it from the groove on the movable nut 201. At this point, the main body of the movable plate 212 remains within the groove, causing the bottom of the lotus block 211 to contact the groove. Thus, when the bolt 123 rotates, the movable nut 201 is in a fixed state. When the bolt 123 drives the pressing block 122 to fix the cable, when the bolt 123 rotates again, since part of the movable plate 212 has already left the groove, and the movable nut 201 is no longer blocked by the lotus block 211, the bolt 123's rotation will cause the movable nut 201 to contact the groove. When bolts 123 rotate in the same direction, the rotating nut 201 pushes the rotating plate 212 to rotate, causing bolt 123 to rotate again when the cable is tightened. This reduces the possibility of the internal threads of the nut 201 being damaged by bolt 123, thus reducing the occurrence of stripped bolt 123. When bolt 123 is to be removed, it will rotate in the opposite direction. If the rotating plate 212 happens to be in the groove, the spring plate 213 on the side wall of the rotating plate 212 will push the rotating plate 212 back to its original position. At this time, the reverse-rotating rotating plate 212 will be affected by the lotus block 2 on the back. The obstruction of the movable nut 201 by the bolt 123 prevents it from rotating when the movable nut 201 is rotated in the opposite direction. If it is not inside the slide groove, the movable plate 212 will be entered into the slide groove by the rotation of the movable nut 201, thus completing the installation and removal of the bolt 123. Due to the setting of the lotus block 211, the movable nut 201 will rotate with the bolt 123 when the cable is fixed, thereby reducing the occurrence of stripping of the bolt 123, thus improving the service life of the bolt 123 and the movable nut 201, and indirectly increasing the safety of the isolation transformer.

[0090] When the lotus block 211 deforms due to the downward pressure of the connecting block 121, the bottom of the lotus block 211 will flip outward and move upward. At this time, the linkage block 221 on the outer wall of the lotus block 211 will move upward along with the lotus block 211. The upward movement of the linkage block 221 will drive the lifting ring 311 to move upward through the connecting rod 223. At this time, the lifting ring 311 will slide on the outer surface of the movable nut 201. Due to the setting of the parts compartment 114, the center position of the movable nut 201 will not change, and the position of the movable nut 201 will not change, so the position of the lifting ring 311 will not change. Because the lifting ring 311 is driven upward by the upward movement of the C-shaped block 222 and because the lifting ring 311 slides on the surface of the movable nut 201, thus... When the lifting ring 311 moves, the entire structure moves together and the lifting ring 311 remains horizontal. Therefore, when one side of the C-shaped block 222 drives the lifting ring 311, the other side of the C-shaped block 222 will also move synchronously with the other side of the C-shaped block 222 under the driving force of the rising lifting ring 311. This reduces the situation where the lotus block 211 is subjected to one-sided force when the extrusion block 122 extrudes the cable, which is usually placed on one side of the bolt 123. This causes the lotus block 211 to open unevenly outward, resulting in the movable nut 201 not being able to lock properly. The setting of the C-shaped block 222 reduces the unevenness of the deformation of the lotus block 211, thereby improving the synchronization rate of the lotus block 211 and improving the stability of the lotus block 211 when locking.

[0091] When connecting block 121 presses against pressing block 122 and moves downward, the downward movement of pressing block 122 will press against the cable, causing the cable to push connecting block 121 downward, which in turn drives lotus block 211 downward. At this time, lotus block 211 will be blocked by movable nut 201, causing the bottom of lotus block 211 to expand upward, causing lotus block 211 to deform. When lotus block 211 expands upward, it will drive pressing plate 312 upward. The upward movement of pressing plate 312 will cause the top of pressing plate 312 to contact the bottom of connecting block 121, so that connecting block 121 is subjected to a thrust in one direction. At this time, pressing block 122 is still affected by the downward movement of bolt 123 and continues to press the cable downward. The cable is subjected to compression from the upper and lower compression blocks 122 and the connecting block 121. When the movable nut 201 can rotate, the lotus block 211 deforms to its final shape. When the compression plate 312 moves upward, it is blocked by the connecting block 121, causing the compression plate 312 to bend to a certain extent. This causes the connecting block 121 to be pushed upward to its highest point. Before the bolt 123 rotates in the opposite direction, the cable will be pushed upward by the connecting block 121. The compression plate 312 reduces the problem of the cable not being securely fixed due to the lotus block 211 moving downward with the connecting block 121, thereby improving the cable clamping firmness.

[0092] When the lotus block 211 deforms downwards, its bottom moves upwards. At this time, the C-shaped block 222 on the outer side of the lotus block 211 moves upwards along with it, driven by the linkage block 221. The movement of the C-shaped block 222, in turn, drives the bottom lifting ring 311 upwards via the connecting rod 223. As the lifting ring 311 moves upwards, the bottom of the O-ring 321 connects to the inner wall of the parts compartment 114, causing the O-ring 321 at the bottom of the lifting ring 311 to deform. This causes the rubber strip 322 on the O-ring 321 to gradually move away from the movable nut 201, thus relieving the movable nut 201 of friction caused by the rubber strip 322. When the rubber strip 322 on the O-ring 321 has not yet... When the bolt leaves the surface of the movable nut 201, it creates a locking effect, strengthening the locking state of the movable nut 201 when the cable is not fixed. When the bolt is reversed, the tension on the O-ring 321 disappears, allowing the O-ring 321 to return to its initial state under the influence of its own elasticity. At this time, the rubber strip 322 on the O-ring 321 gradually moves closer to the movable nut 201, and the other side of the rubber strip 322 that is not in contact with the movable nut 201 will contact the inner wall of the parts compartment 114, thus fixing the movable nut 201 in the center position due to the deformation of the rubber strip 322. Due to the setting of the O-ring 321, the uncertainty and stability of the position of the movable nut 201 when the bolt 123 stops reversing is reduced, thereby improving the stability of the movable nut 201.

[0093] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A transformer assembly for distribution network safety isolation, comprising a main body (1), characterized in that, Also includes: Unlocking mechanism (2), the unlocking mechanism (2) is installed on the front of the main body (1). When the worker fixes the cable with bolts, the presence of the unlocking mechanism (2) will cause the threaded hole to rotate with the bolt after the cable is fixed. The reinforcing mechanism (3) is installed at the bottom of the unlocking mechanism (2) and increases the clamping force on the cable when the cable is fixed.

2. A transformer assembly for distribution network safety isolation according to claim 1, characterized in that: The main body (1) includes: A fixing component (11) is mounted on the front of the main body (1); A power-conducting assembly (12) is mounted on top of a fixed assembly (11).

3. A transformer assembly for distribution network safety isolation according to claim 2, characterized in that: The unlocking mechanism (2) includes a movable nut (201) disposed inside the fixed component (11). The outer wall of the movable nut (201) is provided with a plurality of sliding grooves, which are distributed circumferentially around the movable nut (201). The unlocking mechanism (2) also includes: A control component (21) is installed inside the power supply component (12); Limiting component (22) is installed at the bottom of control component (21).

4. A transformer assembly for distribution network safety isolation according to claim 3, characterized in that: The enhancement mechanism (3) includes: Linkage component (31), which is installed on the outside of the limiting component (22); An auxiliary component (32) is installed at the bottom of the linkage component (31).

5. A transformer assembly for distribution network safety isolation according to claim 1, characterized in that: The fixing component (11) includes two fixing blocks (111) fixedly connected to the side wall of the main body (1), and the two fixing blocks (111) are symmetrically distributed with the main body (1) as the center; The top of the fixing block (111) is provided with two coils (112), both of which are fixedly connected to the inner wall of the main body (1), and the two coils (112) are symmetrically distributed with the main body (1) as the center. Two placement blocks (113) are provided on the top of the coil (112), and the two placement blocks (113) are respectively fixedly connected to the front and back of the main body (1); The placement block (113) has several parts compartments (114) inside, and the parts compartments (114) are arranged at equal intervals along the edge of the placement block (113); The movable nut (201) is located in the parts compartment (114).

6. A transformer assembly for distribution network safety isolation according to claim 5, characterized in that: The power-on assembly (12) includes a connecting block (121) slidably connected to the top of the parts compartment (114), and a pressing block (122) is provided on the top of the connecting block (121), and the pressing block (122) is slidably connected to the top of the parts compartment (114); The top of the extrusion block (122) is slidably connected to a bolt (123), which rotates through into the interior of the parts compartment (114).

7. A transformer assembly for distribution network safety isolation according to claim 5, characterized in that: The control component (21) includes a lotus block (211) that is slidably connected inside the parts compartment (114). Several movable plates (212) are rotatably connected to the bottom of the lotus block (211). The movable plates (212) are arranged in pairs around the center circumference of the lotus block (211). One of the movable plates (212) in each group is fixedly connected to a spring plate (213) on its side wall, and the other movable plate (212) is fixedly connected to a spring (214) on its side wall. The end of the spring plate (213) away from the movable plate (212) is fixedly connected to the side wall of the lotus block (211). The end of the spring (214) away from the movable plate (212) is fixedly connected to the inner wall of the lotus block (211); The inner wall of the lotus block (211) is slidably connected to the outer wall of the movable nut (201); The lotus block (211) is slidably connected to the inside of the groove.

8. A transformer assembly for distribution network safety isolation according to claim 7, characterized in that: The limiting component (22) includes four linkage blocks (221) fixedly connected to the outer wall of the lotus block (211), and the four linkage blocks (221) are symmetrically distributed in pairs around the lotus block (211). Each set of linkage blocks (221) has a C-shaped block (222) slidably connected to its outer surface; The bottom of the C-shaped block (222) is rotatably connected to several connecting rods (223), and the several connecting rods (223) are distributed at the same angle as the C-shaped block (222).

9. A transformer assembly for distribution network safety isolation according to claim 8, characterized in that: The linkage component (31) includes a lifting ring (311) that is rotatably connected to the bottom of the connecting rod (223). The top of the lifting ring (311) is provided with several extrusion plates (312), and the extrusion plates (312) are fixedly connected to the outer wall of the lotus block (211). The extrusion plates (312) are distributed circumferentially around the lotus block (211).

10. A transformer assembly for distribution network safety isolation according to claim 9, characterized in that: The auxiliary component (32) includes an O-ring (321) fixedly connected to the bottom of the lifting ring (311), and the bottom of the O-ring (321) is fixedly connected to the bottom inner wall of the parts compartment (114). The O-ring (321) has several notches on its sidewall, and several rubber strips (322) are fixedly connected to the outer wall of the O-ring (321). The rubber strips (322) are distributed circumferentially around the O-ring (321).

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