Outdoor lightning protection type transformer

Abstract

The invention relates to the technical field of transformers, and discloses an outdoor lightning protection type transformer which comprises an elastic buffer type connecting mechanism and a telescopic zinc block contact mechanism. The longitudinal hollow shell is fixedly installed under the rotating ball head, and the interior of the longitudinal hollow shell is in a hollow state. The zinc block is placed in the longitudinal hollow shell and can abut against the bottom of the rotating ball head. The second spiral spring can generate upward elastic pressure on the zinc block. According to the outdoor lightning protection type transformer, a sacrificial anode protection mode is utilized, a zinc block is used for carrying out effective anti-rust protection measures on the lightning rod body, and therefore the effective service life of the lightning rod body is prolonged, in addition, the lightning rod body and the sealing cover plate are connected in a buffering mode, and when the lightning rod body vibrates, the lightning rod body can be prevented from being damaged. The damage degree of vibration to the connecting part is reduced, so that the effective service life of the lightning rod body is further prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and particularly to an outdoor lightning protection type transformer. Background Art

[0002] A transformer is a device that adjusts the AC voltage through electromagnetic induction. By using a transformer, when performing long-distance AC power transmission, the stability of the transmission voltage is maintained, effectively avoiding voltage instability caused by power consumption due to resistance problems during the transmission of AC power, which affects the normal supply and use of electric energy. In the existing power transmission, transformers are widely used, enabling good power supply applications in remote areas, with obvious advantages. In order to avoid damage to the power transmission line caused by lightning strikes during power transmission, lightning protection for outdoor use of transformers is required.

[0003] For example, Chinese Patent with the publication number "CN111091963B" discloses "an outdoor lightning protection type transformer", whose main structure includes a transformer protection cabinet, a humidity sensor, a motor, and a lightning rod body. A humidity sensor is fixedly installed on one side of the top of the transformer protection cabinet, and a reserved air cavity is opened at the bottom of the transformer protection cabinet. The rod end of the lead screw is fixedly connected to the motor, and a windshield push plate is movably installed on the outer wall of the lead screw. An insulating ceramic cylinder is fixedly installed on the side outer wall of the transformer protection cabinet. The lightning rod body is located inside the cavity. A rubber ring is movably installed at the top outlet position of the insulating ceramic cylinder. A positioning rubber block is fixed on the inner wall of the outer end of the insulating connecting rod outside the sleeve. This outdoor lightning protection type transformer can perform the use and storage protection of the lightning protection structure by itself, reducing damage caused by wind bending during external storage. At the same time, it can greatly reduce the external force of wind and rain impact during use, achieving the use protection of the lightning protection structure.

[0004] However, the lightning rod body in the above outdoor lightning protection type transformer is inevitably exposed to a humid environment during lightning protection. The essence of the rusting of the lightning rod body is as follows: in a humid environment, tiny primary batteries are formed on the metal surface. Iron acts as the anode and undergoes an oxidation reaction. Iron atoms lose electrons and become ferrous ions. The ferrous ions further combine with hydroxide ions to form ferrous hydroxide, which is then oxidized to ferric hydroxide in the air and gradually decomposed into rust. In addition, the metal directly reacts with oxygen in the air to form an oxide film. This chemical corrosion process is relatively slow in dry air. Therefore, the above outdoor lightning protection type transformer still has relatively poor anti-rust protection for the lightning rod body. Moreover, in an outdoor environment, when encountering strong wind weather, the lightning rod body will vibrate. This vibration will cause mechanical vibration between the connection part of the lightning rod body and the transformer protection cabinet, easily resulting in damage to both at the connection part and causing the lightning rod body to be unable to be used normally. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides an outdoor lightning protection type transformer. By means of sacrificial anode protection, zinc blocks are used to effectively rust-proof the lightning rod body, thereby improving the effective service life of the lightning rod body. In addition, the connection mode between the lightning rod body and the sealing cover plate is a buffer connection, which can reduce the damage degree of the connection part caused by tremors when the lightning rod body trembles, thereby further improving the effective service life of the lightning rod body and solving the above technical problems.

[0006] To achieve the above object, the present invention provides the following technical solution: An outdoor lightning protection type transformer includes a transformer protection cabinet capable of installing a transformer body inside, a sealing cover plate covering the top of the transformer protection cabinet, a plurality of wire through holes provided in the sealing cover plate, a component installation opening provided in the sealing cover plate, and a lightning rod body with wires installed at the bottom. It also includes an elastic buffer connection mechanism, which internally has an annular embedding body fixedly installed in the component installation opening, a rotating ball head located in the central area of the annular embedding body and fixedly connected to the bottom of the lightning rod body, a rubber embedding ring located between the annular embedding body and the rotating ball head and having a buffer connection effect, and a first helical spring capable of keeping the rotating ball head stable in an elastic reset manner; and a telescopic zinc block contact mechanism, which internally has a longitudinal hollow outer shell fixedly installed directly below the rotating ball head and in a hollow state inside, a zinc block placed inside the longitudinal hollow outer shell and capable of abutting against the bottom of the rotating ball head, and a second helical spring capable of generating an upward elastic pressure on the zinc block.

[0007] Preferably, the elastic buffer connection mechanism includes an annular embedding body. The outer circumferential surface of the annular embedding body is provided with an annular fixing groove fixedly installed in the component installation opening. The center of the annular embedding body is provided with an outer embedding groove. A rubber embedding ring is fixedly installed in the annular embedding body in the outer embedding groove. The center of the rubber embedding ring is provided with an inner embedding groove. A rotating ball head is placed inside the rubber embedding ring in the inner embedding groove. The top area of the rotating ball head is provided with a first connecting plate integrally formed with it. The bottom area of the rotating ball head is provided with a bottom abutting head integrally formed with it. A connecting bracket is fixedly installed on the periphery of the bottom abutting head. Three annularly arranged lower limit plates are provided at the edge of the connecting bracket. A first helical spring is fixedly installed on the upper surface of each lower limit plate. The top end of the first helical spring is fixedly installed with an upper limit plate abutting against the bottom surface of the sealing cover plate.

[0008] Preferably, the rubber embedding ring is a ring-shaped structure made of rubber material, and both the rotating ball head and the lightning rod body are made of stainless steel material.

[0009] Preferably, the structural radius of the outer embedding groove is greater than that of the rotating ball head, and the diameters of the upper and lower ports of the outer embedding groove are smaller than the structural radius of the rotating ball head.

[0010] Preferably, the telescopic zinc block contact mechanism includes a longitudinal hollow housing. A curved connecting rod is fixedly installed in the middle of the outer circumferential surface of the longitudinal hollow housing. The top end of the curved connecting rod is fixedly installed at the bottom of the connecting bracket. An inner cavity for the movement of the central component with an open top is arranged inside the longitudinal hollow housing. An internal threaded hole communicating with the space below and the bottom end of the central component activity cavity is arranged at the bottom end of the longitudinal hollow housing. A lower movable plate capable of moving axially along the central component activity cavity is placed inside the longitudinal hollow housing at the position of the central component activity cavity. A threaded outer rod penetrating the internal threaded hole is fixedly installed at the bottom end of the lower movable plate. The rod body of the threaded outer rod is installed in the internal threaded hole through a threaded structure. A rotating cap is fixedly installed at the bottom end of the threaded outer rod. A second helical spring in a compressed state is placed on the upper end surface of the lower movable plate. An upper movable plate capable of moving axially along the central component activity cavity is placed at the top end of the second helical spring. A plurality of zinc blocks stacked layer by layer are placed on the upper end surface of the upper movable plate. An insulating pad is placed between every two adjacent zinc blocks. The upper end surface of the zinc block at the top abuts against the bottom end of the bottom contact head.

[0011] Preferably, the threaded structure includes an internal thread structure arranged in the internal threaded hole and an external thread structure arranged on the rod body of the threaded outer rod, and the internal thread structure matches the external thread structure.

[0012] Preferably, the bottom end and the top end of the second helical spring are in contact with the corresponding end faces of the lower movable plate and the upper movable plate in a butting manner, and the contact parts are not rigidly connected.

[0013] Preferably, an expansion type grounding mechanism is further included, which internally includes a hollow insertion column connected to a wire and capable of being inserted into the ground, and a plurality of elastic airbag sheets embedded in the inner wall thickness of the outer circumference of the hollow insertion column and generating an outward expansion phenomenon when subjected to gas pressure.

[0014] Preferably, the expansion type grounding mechanism includes a hollow insertion column. A tip structure integrally formed with it is arranged at the bottom end of the hollow insertion column. An inward concave structure is arranged on the upper end surface of the hollow insertion column and a wire fixing groove for fixedly installing one end of the wire is provided. A gas storage cavity is arranged inside the hollow insertion column. A plurality of fan-shaped notches in an annular array and communicating with the external space and the circumferential surface of the gas storage cavity are arranged at the circumferential wall thickness of the hollow insertion column. An elastic airbag sheet is hermetically embedded in each fan-shaped notch. A gas compensation channel communicating with the external space and the top end of the gas storage cavity and internally installed with a gas valve is arranged inside the hollow insertion column.

[0015] Preferably, the hollow insertion column is made of a metal material.

[0016] Compared with the prior art, the present invention provides an outdoor lightning protection type transformer, which has the following beneficial effects:

[0017] 1. By using the method of sacrificial anode protection, zinc blocks are used to effectively protect the lightning rod body from rust, thereby improving the effective service life of the lightning rod body. In addition, the connection between the lightning rod body and the sealing cover plate is a buffer connection, which can reduce the damage degree of the tremor to the connection part when the lightning rod body trembles, thereby further improving the effective service life of the lightning rod body;

[0018] 2. By setting an elastic buffer connection mechanism, when the lightning rod body trembles under the action of strong wind, the acting force generated by the tremor will be transmitted to the rotating ball head, and the vibration of the rotating ball head will be absorbed by the rubber insertion ring, absorbing most of the kinetic energy. Part of the vibration will be transmitted to the annular insertion body and the sealing cover plate, thereby reducing the influence of mechanical tremor on the connection part. At the same time, during the vibration of the rotating ball head, the first helical spring can play a necessary elastic reset function, so that the rotating ball head can rotate and return to the correct position within a certain range, thereby realizing a buffer connection relationship;

[0019] 3. By setting a telescopic zinc block contact mechanism, when the lightning rod body is corroded, zinc will be preferentially corroded as the anode, continuously providing electrons to iron and inhibiting the oxidation reaction of iron, thereby protecting the iron matrix from corrosion. When a single zinc block is corroded, the operator can remove the zinc block at the top. Under the action of the second helical spring, the top of the next zinc block will be in contact with the bottom of the rotating ball head. Then, the insulating pad at this time is removed, so as to continue to protect the lightning rod body from corrosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a perspective view of the present invention;

[0021] Figure 2 is a perspective sectional view of the present invention;

[0022] Figure 3 is a perspective view of the elastic buffer connection mechanism in the present invention;

[0023] Figure 4 is a perspective sectional view of the elastic buffer connection mechanism in the present invention;

[0024] Figure 5 is a perspective view of the telescopic zinc block contact mechanism in the present invention;

[0025] Figure 6 is a perspective sectional view of the telescopic zinc block contact mechanism in the present invention;

[0026] Figure 7 This is a perspective view of the expandable grounding mechanism in the present invention;

[0027] Figure 8 This is a perspective sectional view of the expandable grounding mechanism in the present invention.

[0028] Wherein: 1, transformer body; 2, transformer protection cabinet; 3, sealing cover plate; 4, wire perforation; 5, component installation port; 6, lightning rod body; 7, wire; 8, elastic buffer connection mechanism; 81, annular embedding body; 82, annular fixing groove; 83, outer embedding groove; 84, rubber embedding ring; 85, inner embedding ring; 86, rotating ball head; 87, first connecting plate; 88, bottom contact head; 89, connecting bracket; 810, lower limit plate; 811, first helical spring; 812, upper limit plate; 9, telescopic zinc block contact mechanism; 91, longitudinal hollow housing; 92, curved connecting rod; 93, central component activity cavity; 94, upper movable plate; 95, second helical spring; 96, lower movable plate; 97, internal thread hole; 98, external threaded rod; 99, rotating cap; 910, zinc block; 911, insulating pad; 10, expandable grounding mechanism; 101, hollow insertion column; 102, tip structure; 103, wire fixing groove; 104, gas storage cavity; 105, gas compensation channel; 106, fan-shaped notch; 107, elastic airbag sheet. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figure 1 and Figure 2 , an outdoor lightning protection type transformer, including a transformer protection cabinet 2 capable of installing a transformer body 1 inside, a sealing cover plate 3 covering the top of the transformer protection cabinet 2, a plurality of wire perforations 4 provided in the sealing cover plate 3, a component installation port 5 provided in the sealing cover plate 3, and a lightning rod body 6 with a wire 7 installed at the bottom, and the transformer protection cabinet 2 is fixedly installed in a working place.

[0031] In order to achieve a buffer connection relationship, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, it is necessary to set up an elastic buffer connection mechanism 8, which is internally provided with an annular embedding body 81 fixedly installed in the component installation port 5, a rotating ball head 86 located in the central area of the annular embedding body 81 and fixedly connected to the bottom of the lightning rod body 6, a rubber embedding ring 84 located between the annular embedding body 81 and the rotating ball head 86 and playing a buffer connection effect, and a first spiral spring 811 that can keep the rotating ball head 86 stable in an elastic reset manner. When the lightning rod body 6 trembles under the action of strong wind, the force generated by the tremor will be transmitted to the rotating ball head 86, and the vibration of the rotating ball head 86 will be absorbed by the rubber embedding ring 84, absorbing most of the kinetic energy. Part of the vibration will be transmitted to the annular embedding body 81 and the sealing cover plate 3, thereby reducing the impact of mechanical tremors on the connection part. At the same time, during the vibration of the rotating ball head 86, the first spiral spring 811 can play a necessary elastic reset function, enabling the rotating ball head 86 to rotate and return to the correct position within a certain range, thereby realizing a buffer connection relationship.

[0032] For the specific structure of the elastic buffer connection mechanism 8, please refer to Figure 3 and Figure 4 , including an annular embedding body 81. The outer circumferential surface of the annular embedding body 81 is provided with an annular fixing groove 82 fixedly installed in the component installation port 5. The center of the annular embedding body 81 is provided with an outer embedding groove 83. A rubber embedding ring 84 is fixedly installed in the annular embedding body 81 in the outer embedding groove 83. The center of the rubber embedding ring 84 is provided with an inner embedding ring 85. A rotating ball head 86 is placed inside the inner embedding ring 85 of the rubber embedding ring 84. The top area of the rotating ball head 86 is provided with a first connecting plate 87 integrally structured with it. The bottom area of the rotating ball head 86 is provided with a bottom contact head 88 integrally structured with it. A connecting bracket 89 is fixedly installed around the bottom contact head 88. Three annularly arrayed lower limit plates 810 are provided at the edge of the connecting bracket 89. A first spiral spring 811 is fixedly installed on the upper surface of each lower limit plate 810. The top end of the first spiral spring 811 is fixedly installed with an upper limit plate 812 that abuts against the bottom surface of the sealing cover plate 3. The rubber embedding ring 84 is a ring-shaped structure made of rubber material. The rotating ball head 86 and the lightning rod body 6 are both made of stainless steel material. The structural radius of the outer embedding groove 83 is greater than the structural radius of the rotating ball head 86. The diameters of the upper and lower ports of the outer embedding groove 83 are smaller than the structural radius of the rotating ball head 86.

[0033] For the method of sacrificial anode protection, zinc blocks are used to effectively protect the lightning rod body against rust, thereby increasing the effective service life of the lightning rod body. Please refer to Figure 1 , Figure 2 , Figure 5 and Figure 6, it is necessary to set up a telescopic zinc block contact mechanism 9, which is internally provided with a longitudinal hollow shell 91 fixedly installed directly below the rotating ball head 86 and in a hollow state inside, a zinc block 910 placed inside the longitudinal hollow shell 91 and capable of abutting against the bottom of the rotating ball head 86, and a second helical spring 95 capable of generating an upward elastic pressure on the zinc block 910. When the lightning rod body 6 is corroded, zinc will be preferentially corroded as the anode, continuously providing electrons to iron and inhibiting the oxidation reaction of iron, thereby protecting the iron matrix from corrosion. When a single zinc block 910 is completely corroded, the operator can remove the zinc block 910 at the top. Under the action of the second helical spring 95, the top of the next zinc block 910 will abut against the bottom of the rotating ball head 86, and then the insulating pad 911 at this time can be removed, so as to continue to provide anti-corrosion protection for the lightning rod body 6.

[0034] For the specific structure of the telescopic zinc block contact mechanism 9, please refer to Figure 5 and Figure 6 , including a longitudinal hollow shell 91. A curved connecting rod 92 is fixedly installed in the middle of the outer circumferential surface of the longitudinal hollow shell 91. The top end of the curved connecting rod 92 is fixedly installed at the bottom of the connecting bracket 89. An inner central component activity cavity 93 with an open top end is arranged inside the longitudinal hollow shell 91. An internal thread hole 97 communicating the space below it and the bottom end of the central component activity cavity 93 is arranged at the bottom end of the longitudinal hollow shell 91. A lower movable plate 96 capable of moving axially along the central component activity cavity 93 is placed inside the longitudinal hollow shell 91 at the position of the central component activity cavity 93. An external threaded rod 98 penetrating the internal thread hole 97 is fixedly installed at the bottom end of the lower movable plate 96. The rod body of the external threaded rod 98 is installed in the internal thread hole 97 through a threaded structure. A rotating cap 99 is fixedly installed at the bottom end of the external threaded rod 98. A second helical spring 95 in a compressed state is placed on the upper end surface of the lower movable plate 96. An upper movable plate 94 capable of moving axially along the central component activity cavity 93 is placed at the top end of the second helical spring 95. A plurality of zinc blocks 910 stacked layer by layer are placed on the upper end surface of the upper movable plate 94. An insulating pad 911 is placed between every two adjacent zinc blocks 910. The upper end surface of the zinc block 910 at the top abuts against the bottom end of the bottom contact head 88. The threaded structure includes an internal thread structure arranged in the internal thread hole 97 and an external thread structure arranged on the rod body of the external threaded rod 98, and the internal thread structure matches the external thread structure. The bottom end and the top end of the second helical spring 95 are in contact with the corresponding end faces of the lower movable plate 96 and the upper movable plate 94 in a abutting manner, and the contact parts are non-rigidly connected.

[0035] In order to improve the stable grounding method, please refer to Figure 1 , Figure 2 , Figure 7 andFigure 8 , it is necessary to set up an expandable grounding mechanism 10, which is internally provided with a hollow insertion column 101 connected to the wire 7 and capable of being inserted into the ground, and a plurality of elastic airbag sheets 107 embedded in the inner wall thickness of the outer circumference of the hollow insertion column 101, which will expand outward when subjected to gas pressure. Insert the hollow insertion column 101 into the ground, and then use an inflation device to inject gas into the gas compensation channel 105. When the inner side of the elastic airbag sheet 107 is subjected to gas pressure, it will expand outward, so that the outer side of the elastic airbag sheet 107 abuts against the surface of the underground soil, increasing the contact pressure with the soil, and thus improving the working stability of the device.

[0036] For the specific structure of the expandable grounding mechanism 10, please refer to Figure 7 and Figure 8 , including a hollow insertion column 101. The bottom end of the hollow insertion column 101 is provided with a tip structure 102 integrally formed therewith. The upper end surface of the hollow insertion column 101 is provided with a concave structure and a wire fixing groove 103 for fixedly installing one end of the wire 7. A gas storage cavity 104 is arranged inside the hollow insertion column 101. A plurality of fan-shaped notches 106 are arranged in an annular array on the circumferential wall thickness of the hollow insertion column 101 and communicate with the outer space and the circumferential surface of the gas storage cavity 104. An elastic airbag sheet 107 is hermetically embedded in each of the fan-shaped notches 106. A gas compensation channel 105 communicating with the outer space and the top end of the gas storage cavity 104 and internally installed with a gas valve is arranged inside the hollow insertion column 101. The hollow insertion column 101 is made of metal material.

[0037] In use, the transformer protection cabinet 2 is fixedly installed in the workplace, and the hollow insertion column 101 is inserted into the ground. Then, an inflation device is used to inject gas into the gas compensation channel 105. When the inner side of the elastic airbag piece 107 is subjected to gas pressure, it will expand outward, so that the outer side of the elastic airbag piece 107 abuts against the surface of the underground soil. When the lightning rod body 6 trembles under the action of strong wind, the force generated by the tremor will be transmitted to the rotating ball head 86, and the vibration of the rotating ball head 86 will be absorbed by the rubber embedding ring 84, absorbing most of the kinetic energy. Part of the vibration will be transmitted to the annular embedding body 81 and the sealing cover plate 3, thereby reducing the impact of mechanical tremors on the connection part. At the same time, during the vibration of the rotating ball head 86, the first helical spring 811 can play a necessary elastic reset function. When the lightning rod body 6 is corroded, zinc will be preferentially corroded as the anode, continuously providing electrons to iron and inhibiting the oxidation reaction of iron, thereby protecting the iron matrix from corrosion. When a single zinc block 910 is corroded, the operator can remove the zinc block 910 at the top. Under the action of the second helical spring 95, the top of the next zinc block 910 will abut against the bottom of the rotating ball head 86, and then the insulating pad 911 at this time is removed, so as to continue to protect the lightning rod body 6 against corrosion.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An outdoor lightning protection transformer, comprising a transformer protection cabinet (2) in which a transformer body (1) can be installed, a sealing cover plate (3) covering the top of the transformer protection cabinet (2), a plurality of wire through holes (4) arranged in the sealing cover plate (3), a component installation opening (5) arranged in the sealing cover plate (3), and a lightning rod body (6) with a wire (7) installed at the bottom, characterized in that: Also includes, An elastic buffer connection mechanism (8) is provided with an annular embedded body (81) fixedly installed in a component installation opening (5), a rotating ball head (86) located in the central area of ​​the annular embedded body (81) and fixedly connected to the bottom of the lightning rod body (6), a rubber embedded ring (84) located between the annular embedded body (81) and the rotating ball head (86) and having a buffer connection effect, and a No. 1 spiral spring (811) capable of keeping the rotating ball head (86) stable in an elastic reset manner; And a telescopic zinc block contact mechanism (9), which is provided with a longitudinal hollow shell (91) fixedly installed just below the rotating ball head (86) and having a hollow interior, a zinc block (910) placed inside the longitudinal hollow shell (91) and capable of contacting the bottom of the rotating ball head (86), and a No. 2 coil spring (95) capable of generating an upward elastic pressure on the zinc block (910).

2. An outdoor lightning protection transformer according to claim 1, characterized in that: The elastic buffer connection mechanism (8) comprises an annular embedded body (81), the outer circumferential surface of the annular embedded body (81) is provided with an annular fixed groove (82) fixedly installed in the component installation opening (5), the center of the annular embedded body (81) is provided with an outer embedded groove (83), the annular embedded body (81) is provided with a rubber embedded ring (84) fixedly installed in the outer embedded groove (83), the center of the rubber embedded ring (84) is provided with an inner embedded ring (85), the rubber embedded ring (84) is provided with a rotating ball head (86) inside the inner embedded ring (85), and the rotating ball head (86) is A No. 1 connecting plate (87) is provided in the top area of ​​the rotating ball head (86) and is integrally formed with the rotating ball head; a bottom contact head (88) is provided in the bottom area of ​​the rotating ball head (86) and is integrally formed with the rotating ball head; a connecting bracket (89) is fixedly installed on the periphery of the bottom contact head (88); three lower limit plates (810) are arranged in a circular array at the edge of the connecting bracket (89); a No. 1 coil spring (811) is fixedly installed on the upper surface of each lower limit plate (810); and an upper limit plate (812) that contacts the bottom surface of the sealing cover plate (3) is fixedly installed on the top of the No. 1 coil spring (811).

3. An outdoor lightning protection transformer according to claim 2, characterized in that: The rubber embedded ring (84) is an annular structure made of rubber material, and the rotating ball head (86) and the lightning rod body (6) are both made of stainless steel material.

4. An outdoor lightning protection transformer according to claim 3, characterized in that: The structural radius of the external embedded groove (83) is greater than the structural radius of the rotating ball head (86), and the diameters of the upper and lower ports of the external embedded groove (83) are smaller than the structural radius of the rotating ball head (86).

5. An outdoor lightning protection transformer according to claim 4, characterized in that: The telescopic zinc block contact mechanism (9) comprises a longitudinal hollow shell (91), a curved connecting rod (92) is fixedly mounted in the middle of the outer circumferential surface of the longitudinal hollow shell (91), the top end of the curved connecting rod (92) is fixedly mounted on the bottom of the connecting bracket (89), a central component movable cavity (93) with an open top is arranged inside the longitudinal hollow shell (91), an internal threaded hole (97) is arranged at the bottom end of the longitudinal hollow shell (91) and is connected to the space below and the bottom end of the central component movable cavity (93), a lower movable plate (96) is arranged inside the central component movable cavity (93) of the longitudinal hollow shell (91) and is movable along the axial direction of the central component movable cavity (93), and the bottom end of the lower movable plate (96) is arranged An externally threaded rod (98) passing through an internally threaded hole (97) is fixedly installed, and the rod body of the externally threaded rod (98) is installed in the internally threaded hole (97) through a threaded structure. A rotating cap (99) is fixedly installed at the bottom end of the externally threaded rod (98). A No. 2 coil spring (95) in a compressed state is placed on the upper end surface of the lower movable plate (96). An upper movable plate (94) capable of axial movement along the movable cavity (93) of the central component is placed on the top end of the No. 2 coil spring (95). A plurality of stacked zinc blocks (910) are placed on the upper end surface of the upper movable plate (94), and an insulating pad (911) is placed between every two adjacent zinc blocks (910). The upper end surface of the zinc block (910) located at the top abuts against the bottom end of the bottom abutment head (88).

6. An outdoor lightning protection transformer according to claim 5, characterized in that: The thread structure comprises an internal thread structure arranged in the internal thread hole (97) and an external thread structure arranged on the rod body of the external thread rod (98), and the internal thread structure matches the external thread structure.

7. An outdoor lightning protection transformer according to claim 6, characterized in that: The bottom end and the top end of the second coil spring (95) contact the corresponding end surfaces of the lower movable plate (96) and the upper movable plate (94) in a resisting manner, and the two are non-rigidly connected at the resisting position.

8. An outdoor lightning protection transformer according to any one of claims 1 to 7, characterized in that: It also includes an expandable grounding mechanism (10), which is provided with a hollow insertion column (101) connected to the conductor (7) and capable of being inserted into the ground, and a plurality of elastic airbag sheets (107) embedded in the thickness of the outer circumferential wall of the hollow insertion column (101) and expanding outwards when subjected to gas pressure.

9. An outdoor lightning protection transformer according to claim 8, characterized in that: The expandable grounding mechanism (10) comprises a hollow insert column (101), the bottom end of the hollow insert column (101) is provided with a tip structure (102) integral with the hollow insert column, the upper end surface of the hollow insert column (101) is provided with a wire fixing groove (103) with an inwardly concave structure and used for fixing and installing one end of the wire body of the wire (7), the hollow insert column (101) is provided with a gas storage cavity (104) inside, the circumferential wall thickness of the hollow insert column (101) is provided with a plurality of circular arrays of fan-shaped notches (106) connecting the external space and the circumferential surface of the gas storage cavity (104), each of the fan-shaped notches (106) is embedded with an elastic airbag sheet (107) in an edge-sealed manner, and the hollow insert column (101) is provided with a gas compensation channel (105) connecting the external space and the top of the gas storage cavity (104) and having a gas valve installed inside.

10. An outdoor lightning protection transformer according to claim 9, characterized in that: The hollow insert column (101) is made of metal material.

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