A lightning protection mechanism for outdoor transformer

Abstract

The invention discloses a lightning protection mechanism for an outdoor transformer, comprising a connecting mechanism. The lightning protection mechanism of the outdoor transformer rotates a rotating column to rotate a rotating ring, and the rotating ring drives a plurality of rotating cylinders to rotate simultaneously. The rotating cylinders drive three second threaded rods to rotate, and the second threaded rods drive three first plug-ins and three second plug-ins distributed in an annular manner to move closer to or farther from each other, so as to adjust the size of a placement space for zinc oxide cylinders formed by the first plug-ins and the second plug-ins distributed in an annular manner, so that the lightning protection mechanism can use zinc oxide cylinders of different sizes. By rotating the first threaded rod and matching the mutual insertion of the first plug-in plate and the second plug-in plate, the length of a guardrail formed by the first plug-in plate and the second plug-in plate can be adjusted, so that the lightning protection mechanism can place different numbers of zinc oxide cylinders according to usage requirements.

Description

Technical Field

[0001] The invention belongs to the field of transformer lightning arresters, and in particular relates to a lightning arrester mechanism for an outdoor transformer. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, secondary coil and iron core (magnetic core). Its main functions include: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc.

[0003] Zinc oxide arrester is an arrester with good protection performance. By using the good nonlinear volt-ampere characteristics of zinc oxide, the current flowing through the arrester is extremely small (microampere or milliampere level) at normal working voltage; when overvoltage acts, the resistance drops sharply, discharging the overvoltage energy to achieve the protection effect. The difference between this arrester and the traditional arrester is that it has no discharge gap, and uses the nonlinear characteristics of zinc oxide to achieve the role of current discharge and breaking.

[0004] When the existing zinc oxide lightning arrester installed on the transformer is in use, the number of zinc oxide cylinders that can be installed is generally fixed, and the size of the zinc oxide cylinders is generally fixed. The lightning protection mechanism cannot install zinc oxide cylinders of different numbers and sizes. It is not convenient to select and use according to actual usage in actual use. For this reason, we propose a lightning protection mechanism for outdoor transformers. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a lightning protection mechanism for an outdoor transformer. To solve the above technical problem, the basic concept of the technical solution adopted by the present invention is:

[0006] A lightning protection mechanism for an outdoor transformer, comprising a connecting mechanism, the connecting mechanism comprising four chassis distributed up and down, a fixing column is installed at the center of the two chassis located at the bottom and the center of the two chassis located at the top, a threaded sleeve is installed at the top of the fixing column located at the bottom, a first threaded rod is rotatably provided at the center of the fixing column located at the top, a rotating column is rotatably provided on the two chassis located at the bottom and the two chassis located at the top through bearings, a limiting cylinder and a limiting column are respectively installed on the top of the rotating column located at the bottom and the bottom of the rotating column located at the top, and a plurality of rotating cylinders distributed in an annular manner are rotatably provided on the two chassis located at the bottom and the two chassis located at the top through bearings; the two chassis located at the bottom and the two chassis located at the top There are several clamping mechanisms distributed in an annular manner, the clamping mechanism includes two first fixed cylinders distributed up and down, the second fixed cylinder is installed inside the first fixed cylinder, three second threaded rods are rotatably arranged on the first fixed cylinder and the second fixed cylinder through bearings, and a moving column is threaded on the second threaded rod, a first plug plate and a second plug plate are installed between the two moving columns located in the same direction in horizontal positions, a fixed disk is installed inside the second fixed cylinder, and compression springs and a moving disk are installed on the sides where the two fixed disks are close to each other; a fixing mechanism is installed at the bottom end of the chassis located below, the fixing mechanism includes a first buckle and a second buckle distributed up and down, hooks are installed on both sides of the first buckle symmetrically distributed, and clamping columns are provided on both sides of the second buckle symmetrically distributed.

[0007] Preferably, a connecting ring and two slide rails are installed between the two chassis located below and between the two chassis located above, and the slide rails are fixedly installed on the chassis. A rotating ring is rotatably provided between the two slide rails, and limit rings are installed on both sides of the rotating ring close to the slide rails, and the limit rings are rotatably set on the slide rails.

[0008] Preferably, a first gear is installed on the outer ring in the middle of the rotating column, an outer gear ring is installed on the outer ring of the rotating ring, and the two outer gear rings are respectively meshed with the two first gears, a second gear is installed on the outer ring of the rotating cylinder, and an inner gear ring is installed on the inner ring of the rotating ring, and the two inner gear rings are respectively meshed with the second gears of two groups of annularly distributed outer rings of the rotating cylinder.

[0009] Preferably, the limit column is slidably arranged inside the limit cylinder, the inner ring of the limit cylinder is provided with a plurality of limit grooves, the outer ring of the limit column is provided with a plurality of limit strips, and the plurality of limit strips are slidably arranged inside the plurality of limit grooves respectively, the first threaded rod is threadably arranged inside the threaded sleeve, and the thread on the first threaded rod is a one-way thread.

[0010] Preferably, the two rotating cylinders located in the same direction in a horizontal position are each equipped with a first bevel gear at one end close to each other, and the top of the chassis located above and the bottom of the chassis located below are each equipped with a fixing ring, and a cover plate is installed at the end of the fixing ring away from the chassis, and a plurality of second sealing disks are installed on the cover plate, and a first sealing disk is installed at the center of the cover plate located above, an end cover is rotatably provided on the first sealing disk, the upper end of the first threaded rod passes through the first sealing disk located above and the cover plate located above, and the top end of the first threaded rod is fixedly connected to the center of the bottom end of the end cover.

[0011] Preferably, the thread on the second threaded rod is a one-way thread, and a limit plate is installed between the first fixed cylinder and the second fixed cylinder, and the limit plate is provided with three sliding holes, and the three moving columns between the first fixed cylinder and the second fixed cylinder are respectively slidably arranged in the three sliding holes, and a clamping plate is installed on the side where the two moving columns in the same horizontal direction are close to each other, and the bottom end of the first plug plate and the top end of the second plug plate are respectively fixedly connected to the two clamping plates, and the first plug plate and the second plug plate can be plugged into each other, and a plurality of card slots are provided on the first plug plate, and a plurality of card blocks are installed on the second plug plate, and the plurality of card blocks are respectively slidably arranged in the plurality of card slots.

[0012] Preferably, a second bevel gear is installed at each of the ends of the three second threaded rods that are close to each other, and the three second bevel gears can all mesh with the same first bevel gear.

[0013] Preferably, the two compression springs are respectively installed at one end of the two fixed disks that are close to each other, and the other end of the compression spring is fixedly connected to the movable disk. The movable disk can be inserted into the second fixed cylinder, and a conductive column is installed at the center of one end of the two fixed disks that are away from each other, and the conductive column passes through the rotating cylinder, the first bevel gear, the cover plate and the second sealing disk. A sealing ring is provided inside the second sealing disk, and the sealing ring is clamped on the outer ring of the conductive column.

[0014] Preferably, two fixed seats are installed on both sides of the second buckle symmetrically distributed, a third threaded rod is rotatably provided on the two fixed seats, and the thread on the third threaded rod is a bidirectional thread, two moving blocks are threaded on the third threaded rod, a swing arm is installed above the moving block, second hinged seats are installed at both ends of the swing arm, the second hinged seat is hingedly connected to the first hinged seat, the two first hinged seats are respectively fixedly connected to the moving block and one end of the clamping column, and the clamping column can be clamped into the inside of the hook.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] When the present invention is in use, the rotating column is rotated to rotate the rotating ring, the rotating ring drives a plurality of rotating cylinders to rotate simultaneously, the rotating cylinders drive three second threaded rods to rotate, the second threaded rods drive three first plug-ins and three second plug-ins distributed in an annular manner to move closer to or farther from each other, thereby adjusting the size of the placement space of the zinc oxide cylinders formed by the first plug-ins and the second plug-ins distributed in an annular manner, so that the lightning protection mechanism can use zinc oxide cylinders of different sizes.

[0017] When the present invention is in use, the length of the guardrail formed by the first plug-in plate and the second plug-in plate is adjusted by rotating the first threaded rod and inserting the first plug-in plate and the second plug-in plate into each other, so that the lightning protection mechanism can place different numbers of zinc oxide cylinders according to the use requirements, and the compression spring is compressed by the movable disk so that the conductive column can always be connected with the zinc oxide cylinder, thereby achieving the effect of lightning protection by using the zinc oxide cylinder.

[0018] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In the attached picture:

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the overall cutaway structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the cross-section structure of the connection mechanism of the present invention;

[0023] Figure 4 It is a schematic diagram of the cross-section structure of the clamping mechanism of the present invention;

[0024] Figure 5 It is a schematic diagram of the fixing mechanism structure of the present invention;

[0025] Figure 6 It is an exploded schematic diagram of the first plugboard and the second plugboard structure of the present invention;

[0026] Figure 7 for Figure 2 A schematic diagram of the enlarged structure of the area at center A;

[0027] Figure 8 for Figure 2 A schematic diagram of the enlarged structure of the area at B in the middle;

[0028] Fig. 9 for Figure 2 A schematic diagram of the enlarged structure of the area at C in the middle;

[0029] Fig.10 for Figure 2 A schematic diagram of the enlarged structure of the area D in the middle;

[0030] Fig.11 for Figure 2 Schematic diagram of the enlarged structure of the area at E in the middle.

[0031] In the figure: 1. connecting mechanism; 101. chassis; 102. connecting ring; 103. fixing column; 104. threaded sleeve; 105. first threaded rod; 106. end cover; 107. rotating column; 108. limiting column; 109. limiting cylinder; 110. first gear; 111. fixing ring; 112. cover plate; 113. first sealing disk; 114. slide rail; 115. rotating ring; 116. limiting ring; 117. outer gear ring; 118. inner gear ring; 119. rotating cylinder; 120. second gear; 121. first bevel gear; 122. second sealing disk; 2. clamping mechanism; 201 , first fixed cylinder; 202, second fixed cylinder; 203, limit plate; 204, second threaded rod; 205, moving column; 206, clamp; 207, first plug plate; 208, second plug plate; 209, second bevel gear; 210, fixed plate; 211, compression spring; 212, moving plate; 213, conductive column; 3, fixing mechanism; 301, first buckle; 302, second buckle; 303, hook; 304, fixed seat; 305, third threaded rod; 306, moving block; 307, first articulated seat; 308, second articulated seat; 309, swing arm; 310, clamping column. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0033] Figures 1 to 4As shown, a lightning protection mechanism for an outdoor transformer, the lightning protection mechanism in this scheme can select to install zinc oxide cylinders of different numbers and sizes according to the actual use requirements of the transformer, the scheme includes a connecting mechanism 1, the connecting mechanism 1 includes four chassis 101 distributed up and down, and the four chassis 101 are made of insulating materials, the centers of the two chassis 101 located at the bottom and the centers of the two chassis 101 located at the top are both installed with fixing columns 103, the top of the fixing column 103 located at the bottom is installed with a threaded sleeve 104, and the center of the fixing column 103 located at the top is rotatably provided with a first threaded rod 105, and the two fixing columns 103 are adjusted by rotating the first threaded rod 105. 3, so that different numbers of zinc oxide cylinders can be placed between the two chassis 101 located at the bottom and the two chassis 101 located at the top, rotating columns 107 are rotatably arranged on the two chassis 101 located at the bottom and the two chassis 101 located at the top through bearings, and limiting cylinders 109 and limiting columns 108 are respectively installed on the top of the rotating column 107 located at the bottom and the bottom of the rotating column 107 located at the top, and the two rotating columns 107 are connected by the limiting cylinder 109 and the limiting column 108 so that the two rotating columns 107 can rotate at the same time, and a plurality of annularly distributed zinc oxide cylinders are rotatably arranged on the two chassis 101 located at the bottom and the two chassis 101 located at the top through bearings. The rotating cylinder 119; a plurality of clamping mechanisms 2 are annularly distributed between the two chassis 101 located at the bottom and the two chassis 101 located at the top, and the clamping mechanism 2 includes two first fixed cylinders 201 distributed up and down, and a second fixed cylinder 202 is installed inside the first fixed cylinder 201, and three second threaded rods 204 are rotatably arranged on the first fixed cylinder 201 and the second fixed cylinder 202 through bearings, and a moving column 205 is threadedly arranged on the second threaded rod 204, and a first plug plate 207 and a second plug plate 208 are installed between the two moving columns 205 located in the same direction at the horizontal position, and the second threaded rod 204 is used to rotate to drive the moving column 205 to move, so that the moving column The first plug plate 207 and the second plug plate 208 connected to 205 can move accordingly, and a fixed disk 210 is installed inside the second fixed cylinder 202, and a compression spring 211 and a movable disk 212 are installed on the side where the two fixed disks 210 are close to each other; a fixing mechanism 3 is installed at the bottom end of the chassis 101 located below, and the fixing mechanism 3 includes a first clip 301 and a second clip 302 distributed up and down, and hooks 303 are installed on both sides of the first clip 301 symmetrically distributed, and clamping columns 310 are provided on both sides of the second clip 302 symmetrically distributed, and the first clip 301 and the second clip 302 are fixed to the transformer by clamping the clamping columns 310 on the hooks 303.

[0034] A connecting ring 102 and two slide rails 114 are installed between the two chassis 101 located at the bottom and between the two chassis 101 located at the top, and the slide rails 114 are fixedly installed on the chassis 101. A rotating ring 115 is rotatably installed between the two slide rails 114. The two sides of the rotating ring 115 close to the slide rails 114 are both installed with limit rings 116. The limit rings 116 are rotatably arranged on the slide rails 114 so that the rotating ring 115 can rotate on the two slide rails 114. The first gear 110 is installed on the outer ring of the middle part of the rotating column 107, and the outer ring of the rotating ring 115 is installed with an outer gear ring 117. The two outer gear rings 1 17 are respectively engaged with the two first gears 110, so that the rotation of the rotating column 107 can drive the rotating ring 115 to rotate, the outer ring of the rotating cylinder 119 is installed with a second gear 120, and the inner ring of the rotating ring 115 is installed with an inner gear ring 118. The two inner gear rings 118 are respectively engaged with the second gears 120 of the outer rings of the two groups of annularly distributed rotating cylinders 119, so that the rotation of the rotating ring 115 can drive several rotating cylinders 119 to rotate accordingly, the limiting column 108 is slidably arranged inside the limiting cylinder 109, the inner ring of the limiting cylinder 109 is provided with several limiting grooves, the outer ring of the limiting column 108 is installed with several limiting strips, and several The limiting bars are slidably arranged in a plurality of limiting grooves, so that the limiting column 108 can slide in the limiting cylinder 109, and after the limiting column 108 slides, the limiting cylinder 109 can still be driven to rotate. The first threaded rod 105 is threadedly arranged in the threaded sleeve 104, and the thread on the first threaded rod 105 is a one-way thread. The first threaded rod 105 is threadedly rotated in the threaded sleeve 104 to adjust the distance between the first threaded rod 105 and the threaded sleeve 104. The ends of the two rotating cylinders 119 located in the same direction in the horizontal position are both installed with the first bevel gear 121. The top of the chassis 101 and A fixing ring 111 is installed at the bottom end of the chassis 101 at the bottom, and a cover plate 112 is installed at the end of the fixing ring 111 away from the chassis 101, and a plurality of second sealing disks 122 are installed on the cover plate 112. A first sealing disk 113 is installed at the center of the cover plate 112 at the top, and an end cover 106 is rotatably provided on the first sealing disk 113. The upper end of the first threaded rod 105 passes through the first sealing disk 113 at the top and the cover plate 112 at the top, and the top end of the first threaded rod 105 is fixedly connected to the center of the bottom end of the end cover 106, so that the end cover 106 can drive the first threaded rod 105 to rotate when it rotates.

[0035] The thread on the second threaded rod 204 is a one-way thread. A limit plate 203 is installed between the first fixed cylinder 201 and the second fixed cylinder 202. The limit plate 203 is provided with three sliding holes. Three moving columns 205 between the first fixed cylinder 201 and the second fixed cylinder 202 are respectively slidably arranged inside the three sliding holes. The moving columns 205 slide inside the sliding holes so that the second threaded rod 204 rotates to drive the moving columns 205 to move. A clamping plate 206 is installed on the side where the two moving columns 205 located in the same direction in the horizontal position are close to each other. 06, the bottom end of the first plug plate 207 and the top end of the second plug plate 208 are respectively fixedly connected to the two clamping plates 206, the first plug plate 207 and the second plug plate 208 can be inserted into each other, and the zinc oxide cylinder is clamped and limited by the first plug plate 207 and the second plug plate 208. The first plug plate 207 is provided with a plurality of slots, and the second plug plate 208 is provided with a plurality of blocks, and the plurality of blocks are respectively slidably arranged in the plurality of slots, so that the two chassis 101 located above can be taken out, and the blocks are slid in the slots to cooperate with the first threaded rod 105, so that the first threaded rod 105 rotates to drive the threaded sleeve 104 away from or close to the first threaded rod 105, the ends of the three second threaded rods 204 close to each other are all installed with second bevel gears 209, and the three second bevel gears 209 can mesh with the same first bevel gear 121, so that the rotating cylinder 119 rotates to drive the three second threaded rods 204 to rotate simultaneously, and the two compression springs 211 are respectively installed at the ends of the two fixed plates 210 close to each other, and the other ends of the compression springs 211 are fixedly connected to the moving plate 212, and the The movable disk 212 can be inserted into the second fixed cylinder 202, and the zinc oxide cylinder is used to squeeze the movable disk 212 so that the zinc oxide cylinder can always be in contact with the movable disk 212. A conductive column 213 is installed at the center of one end of the two fixed disks 210 that are away from each other, and the conductive column 213 passes through the rotating cylinder 119, the first bevel gear 121, the cover plate 112 and the second sealing disk 122. A sealing ring is provided inside the second sealing disk 122, and the sealing ring is clamped on the outer ring of the conductive column 213. The conductive column 213 is used to conduct electricity to the zinc oxide cylinder to achieve a lightning protection effect.

[0036] Two fixing seats 304 are installed on both sides of the second buckle 302, which are symmetrically distributed. A third threaded rod 305 is rotatably provided on the two fixing seats 304, and the thread on the third threaded rod 305 is a bidirectional thread. Two moving blocks 306 are threaded on the third threaded rod 305, so that the rotation of the third threaded rod 305 can drive the two moving blocks 306 to move toward each other. A swing arm 309 is installed above the moving block 306, and second hinge seats 308 are installed at both ends of the swing arm 309. The second hinge seat 308 is hingedly connected to the second hinge seat 308. An articulated seat 307, the two first articulated seats 307 are fixedly connected to the moving block 306 and one end of the clamping column 310 respectively, and the first articulated seat 307 and the second articulated seat 308 are articulated to make the two moving blocks 306 drive the swing arms 309 connected thereto to swing during the process of moving toward each other, and the swing arms 309 can drive the clamping column 310 to rise and fall when swinging, and the clamping column 310 can be clamped into the hook 303, and the first buckle 301 and the second buckle 302 are connected by clamping the clamping column 310 into the hook 303.

Claims

1. A lightning protection mechanism for an outdoor transformer, comprising a connecting mechanism (1), characterized in that: The connecting mechanism (1) comprises four chassis (101) distributed in an upper and lower position, wherein a fixing column (103) is installed at the center of the two chassis (101) located at the bottom and at the center of the two chassis (101) located at the top, a threaded sleeve (104) is installed at the top of the fixing column (103) located at the bottom, and a first threaded rod (105) is rotatably provided at the center of the fixing column (103) located at the top, and a rotating column (107) is rotatably provided on the two chassis (101) located at the bottom and the two chassis (101) located at the top through bearings, and a limiting cylinder (109) and a limiting column (108) are installed at the top of the rotating column (107) located at the bottom and at the bottom of the rotating column (107) located at the top, respectively, and a plurality of rotating cylinders (119) distributed in an annular manner are rotatably provided on the two chassis (101) located at the bottom and the two chassis (101) located at the top through bearings; A plurality of clamping mechanisms (2) are distributed in an annular manner between the two chassis (101) located at the bottom and the two chassis (101) located at the top. The clamping mechanism (2) comprises two first fixed cylinders (201) distributed in an upper and lower manner. A second fixed cylinder (202) is installed inside the first fixed cylinder (201). Three second threaded rods (204) are rotatably provided on the first fixed cylinder (201) and the second fixed cylinder (202) via bearings. A moving column (205) is threadedly provided on the second threaded rod (204). A first plug plate (207) and a second plug plate (208) are installed between the two moving columns (205) located in the same direction at a horizontal position. A fixed disk (210) is installed inside the second fixed cylinder (202). A compression spring (211) and a moving disk (212) are installed on the sides of the two fixed disks (210) that are close to each other. A fixing mechanism (3) is installed at the bottom end of the chassis (101) located below, and the fixing mechanism (3) comprises a first buckle (301) and a second buckle (302) which are distributed up and down, hooks (303) are installed on both sides of the first buckle (301) which are symmetrically distributed, and clamping columns (310) are installed on both sides of the second buckle (302) which are symmetrically distributed.

2. A lightning protection mechanism for an outdoor transformer according to claim 1, characterized in that: A connecting ring (102) and two slide rails (114) are installed between the two chassis (101) located at the bottom and between the two chassis (101) located at the top, and the slide rails (114) are fixedly installed on the chassis (101). A rotating ring (115) is rotatably provided between the two slide rails (114). Limiting rings (116) are installed on both sides of the rotating ring (115) close to the slide rails (114), and the limiting rings (116) are rotatably provided on the slide rails (114).

3. A lightning protection mechanism for an outdoor transformer according to claim 2, characterized in that: A first gear (110) is mounted on the outer ring of the middle part of the rotating column (107); an outer gear ring (117) is mounted on the outer ring of the rotating ring (115); the two outer gear rings (117) are respectively meshed with the two first gears (110); a second gear (120) is mounted on the outer ring of the rotating cylinder (119); an inner gear ring (118) is mounted on the inner ring of the rotating ring (115); the two inner gear rings (118) are respectively meshed with two groups of second gears (120) on the outer rings of the rotating cylinder (119) distributed in an annular shape.

4. A lightning protection mechanism for an outdoor transformer according to claim 3, characterized in that: The limiting column (108) is slidably arranged inside the limiting cylinder (109), the inner ring of the limiting cylinder (109) is provided with a plurality of limiting grooves, the outer ring of the limiting column (108) is provided with a plurality of limiting strips, and the plurality of limiting strips are slidably arranged inside the plurality of limiting grooves respectively, the first threaded rod (105) is threadedly arranged inside the threaded sleeve (104), and the thread on the first threaded rod (105) is a one-way thread.

5. A lightning protection mechanism for an outdoor transformer according to claim 4, characterized in that: The first bevel gear (121) is installed at the ends of the two rotating cylinders (119) located in the same direction and close to each other, and the top of the upper chassis (101) and the bottom of the lower chassis (101) are both installed with a fixing ring (111). The end of the fixing ring (111) away from the chassis (101) is installed with a cover plate (112), and a plurality of second sealing disks (122) are installed on the cover plate (112). A first sealing disk (113) is installed at the center of the upper cover plate (112). An end cover (106) is rotatably provided on the first sealing disk (113). The upper end of the first threaded rod (105) passes through the first sealing disk (113) and the upper cover plate (112), and the top end of the first threaded rod (105) is fixedly connected to the center of the bottom end of the end cover (106).

6. A lightning protection mechanism for an outdoor transformer according to claim 5, characterized in that: The thread on the second threaded rod (204) is a one-way thread. A limit plate (203) is installed between the first fixed cylinder (201) and the second fixed cylinder (202). The limit plate (203) is provided with three sliding holes. Three movable columns (205) between the first fixed cylinder (201) and the second fixed cylinder (202) are respectively slidably arranged inside the three sliding holes. Two movable columns (205) located in the same horizontal direction and close to each other are both provided with clamping plates (206). The bottom end of the first plugging plate (207) and the top end of the second plugging plate (208) are respectively fixedly connected to the two clamping plates (206). The first plugging plate (207) and the second plugging plate (208) can be inserted into each other. The first plugging plate (207) is provided with a plurality of card slots. The second plugging plate (208) is provided with a plurality of card blocks, and the plurality of card blocks are respectively slidably arranged inside the plurality of card slots.

7. A lightning protection mechanism for an outdoor transformer according to claim 6, characterized in that: A second bevel gear (209) is installed at each of the ends of the three second threaded rods (204) that are close to each other, and the three second bevel gears (209) are all capable of meshing with the same first bevel gear (121).

8. A lightning protection mechanism for an outdoor transformer according to claim 7, characterized in that: The two compression springs (211) are respectively installed at one end of the two fixed disks (210) close to each other, and the other end of the compression spring (211) is fixedly connected to the movable disk (212). The movable disk (212) can be inserted into the second fixed cylinder (202). A conductive column (213) is installed at the center of one end of the two fixed disks (210) away from each other, and the conductive column (213) passes through the rotating cylinder (119), the first bevel gear (121), the cover plate (112) and the second sealing disk (122). A sealing ring is provided inside the second sealing disk (122), and the sealing ring is clamped on the outer ring of the conductive column (213).

9. A lightning protection mechanism for an outdoor transformer according to claim 8, characterized in that: Two fixed seats (304) are installed on both sides of the second buckle (302) symmetrically distributed, and a third threaded rod (305) is rotatably provided on the two fixed seats (304), and the thread on the third threaded rod (305) is a bidirectional thread, and two moving blocks (306) are threadedly provided on the third threaded rod (305), and a swing arm (309) is installed above the moving block (306), and second hinge seats (308) are installed at both ends of the swing arm (309), and the second hinge seat (308) is hingedly connected to the first hinge seat (307), and the two first hinge seats (307) are respectively fixedly connected to the moving block (306) and one end of the clamping column (310), and the clamping column (310) can be clamped into the inside of the hook (303).

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