A power-on / off protection device for offshore wind power generation step-up transformer

Abstract

The present invention discloses a power-on and power-off protection device for an offshore wind power generation step-up transformer, which relates to the technical field of insulation detection. The device comprises a step-up transformer body and a storage plate, wherein the storage plate is fixedly mounted on the top of the step-up transformer body, a storage rack is fixedly mounted on the front side of the storage plate, a storage hole is opened on the front side of the storage plate, a screw rod is rotatably mounted on the inner wall of the storage hole, an insulating plate is slidably mounted on the inner wall of the storage hole, a movable plug is fixedly mounted on the front side of the insulating plate, a static socket is fixedly mounted on the front side of the storage rack, a detection line is arranged on the front side of the static socket, a power line is arranged between the movable plug and the step-up transformer body, a pressing frame moves to the left side to contact the detection line and squeezes and fixes the detection line, and the stable support effect of the pressing frame can prevent the detection equipment from being overturned due to the impact of ocean currents and causing the detection line to be pulled out, thereby ensuring that the insulation detection data is stable and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of insulation detection, in particular to a power-on / off protection device for an offshore wind power generation step-up transformer. Background Art

[0002] The on-off protection device of the offshore wind power generation step-up transformer usually consists of a step-up transformer body, a dynamic plug, a static socket and a control component. It is connected to the equipment to be tested through the step-up transformer body to perform insulation testing on the equipment to be tested.

[0003] Patent publication number CN220105191U relates to a power-on / off protection device comprising: a power-on / off assembly and a protective plate. The power-on / off assembly is positioned on the live conductor between the device under test and the step-up transformer. At least a portion of the power-on / off assembly is adjustable to allow for a disconnected state, which disconnects the device under test from the step-up transformer, and a connected state, which connects the device under test to the step-up transformer. The protective plate is spaced apart from the step-up transformer to separate the operator from the step-up transformer. This power-on / off protection device has a simple structure and is easy to operate. It effectively addresses the prior art issue of electric shock accidents to operators during power-on and power-off during insulation testing using a step-up transformer.

[0004] In the above patent, by making at least part of the on-off power component adjustable, the problem in the prior art that during insulation testing using a step-up transformer, electric shock accidents may easily occur to the operator when the power is turned on and off. However, it is difficult to prevent the impact of ocean currents from causing the equipment to be tested to fall over and the detection line to be pulled. Strong pulling of the detection line may easily cause the outer skin to be damaged or the internal cable to break, making it impossible to transmit the insulation detection data of the step-up transformer body back in real time, thereby interfering with the accuracy of the insulation detection signal. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a power-on and power-off protection device for an offshore wind power generation step-up transformer, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an offshore wind power generation step-up transformer power on-off protection device, including a step-up transformer body, and also including a storage plate, the storage plate is fixedly installed on the top of the step-up transformer body, the front side of the storage plate is fixedly installed with a storage rack, the front side of the storage plate is provided with a storage hole, the inner wall of the storage hole is rotatably installed with a screw rod, the inner wall of the storage hole is slidably installed with an insulating plate, the front side of the insulating plate is fixedly installed with a dynamic plug, the front side of the storage rack is fixedly installed with a static socket, the front side of the static socket is provided with a detection line, the dynamic plug A power cord is arranged between the movable plug and the step-up transformer body, and a linkage plate is fixedly installed on the top of the movable plug; a movable groove, which is opened on the front side of the static socket, and the insulating plate is threadedly connected to the screw rod; a movable plate, which is slidably installed on the inner wall of the movable groove, and the movable groove is used to support the movable plate; a pressing plate is fixedly installed on the top of the movable plate, and an elastic telescopic block is fixedly installed on the right side of the bottom of the movable plate, and a pressing frame is fixedly installed on the output end of the elastic telescopic block, and a U-shaped plate is fixedly installed on the front side of the static socket, and the pressing frame moves to the left to contact the detection line and squeeze and fix the detection line.

[0007] According to the above technical solution, a spring 1 is provided between the movable plate and the movable groove. The movable plate moves upward and applies a pulling force to the spring 1. The spring 1 is deformed and accumulates force due to the pulling of the movable plate. After the movable plate is out of contact with the linkage plate, the spring 1 can drive the movable plate to reset. The right side of the pressing frame is set as an inclined plane, and the pressing frame passes through the right side of the pressing plate.

[0008] According to the above technical solution, the pressing frame contacts the inner wall of the pressing plate, the left and right ends of the movable plug are set as inclined surfaces, and the pressing plate moves upward to cooperate with the U-shaped plate to provide preliminary support for the detection line.

[0009] According to the above technical solution, a shielding assembly for improving the sealing between the dynamic plug and the static socket is provided on the inner wall of the storage rack, and a lifting assembly for lifting the detection line is provided on the front side of the storage plate. The shielding assembly includes a snap rod, a snap plate and an arc block. The snap plate is disengaged from the contact with the dynamic plug and the static socket to facilitate the disconnection of the dynamic plug and the static socket. The snap rod is fixedly installed on the inner wall of the storage rack, the snap plate is slidably installed on the circumferential surface of the snap rod, and the arc block is fixedly installed on the right side of the snap plate.

[0010] According to the above technical solution, the shielding assembly also includes a snap spring, a support rod and a support block. The snap spring is arranged between the snap rod and the snap plate. The snap plate moves in the direction close to the static socket to apply a pulling force to the snap spring. The snap spring is deformed and accumulates force due to the pulling of the snap plate. After the arc block is out of contact with the dynamic plug, the snap plate can be driven to reset by the snap spring. The support rod is fixedly installed on the inner wall of the storage rack, and the support block is fixedly installed on the circumferential surface of the support rod. The snap plate moves in the direction close to the static socket to shield and seal the sides of the dynamic plug and the static socket.

[0011] According to the above technical solution, the support block contacts the snap plate, the support rod passes through the left and right walls of the snap plate, the left side of the snap rod is fixedly connected to the static socket, and the snap plate is limited by the support block to ensure that the snap plate will not shake excessively when it is reset.

[0012] According to the above technical solution, the lifting assembly includes a lifting hole, a lifting frame, a lifting spring, an arc hole, an arc plate and a hollow cylinder. The arc plate moves upward to contact the detection line and lift the detection line. The lifting hole is opened on the front side of the storage plate. The lifting frame is slidably installed on the inner wall of the lifting hole. The lifting spring is arranged between the lifting hole and the lifting frame. The lifting frame moves upward to apply a pulling force to the lifting spring. The lifting spring is deformed and accumulates force due to the pulling of the lifting frame. After the lifting frame is out of contact with the buckle plate, the lifting frame can be driven to reset by the lifting spring. The arc hole is opened on the front side of the lifting frame, the arc plate is fixedly installed on the inner wall of the arc hole, and the hollow cylinder is fixedly installed on the inner wall of the lifting hole.

[0013] According to the above technical solution, the bottom of the lifting frame is set as a slope, the hollow tube is elastic, the arc plate is elastic, the hollow tube is in conflict with the lifting frame, and the lifting frame moves downward to reset and disengage from the contact with the detection line and release the support of the detection line.

[0014] The present invention provides a power-on / off protection device for offshore wind power generation step-up transformers. It has the following beneficial effects:

[0015] (1) The on-off protection device of the offshore wind power step-up transformer initially supports the detection line by moving the pressing plate upwards and cooperating with the U-shaped plate. The U-shaped plate forms a wrapping fixation on the detection line to limit its lateral shaking, thereby preventing the detection line from being damaged due to stress concentration or the internal cable from breaking, thereby maintaining the integrity of the insulation detection signal transmission line. The pressing frame moves to the left to contact the detection line and squeeze and fix the detection line. The stable support effect of the pressing frame can prevent the detection equipment from being overturned due to the impact of the ocean current and causing the detection line to be pulled away, thereby ensuring that the insulation detection data is stable and reliable.

[0016] (2) The on-off protection device of the offshore wind power step-up transformer is designed to shield and seal the movable plug and the side of the static socket by moving the snap plate toward the static socket. After the snap plate is shielded and sealed, it can form a physical barrier to prevent moisture from adhering to the movable plug, avoiding misjudgment of insulation detection due to condensation of water vapor, and ensuring that the test data truly reflects the insulation status of the equipment to be tested.

[0017] (3) The offshore wind power generation step-up transformer power on-off protection device facilitates the disconnection of the dynamic plug and the static socket by disengaging the snap plate from the contact with the dynamic plug and the static socket. The snap plate disengages from the contact with the dynamic plug and the static socket, which can quickly disconnect the two, greatly simplifying the maintenance process to avoid damage to the dynamic plug interface due to difficult disassembly. The snap plate is limited by the support block to ensure that the snap plate will not shake excessively when it is reset. The stable reset and anti-shake of the snap plate can ensure that the snap plate is always in the set position, avoiding the degradation of shielding performance caused by shaking and deformation.

[0018] (4) The offshore wind power generation step-up transformer on-off protection device moves the arc plate upward to contact the detection line and lift the detection line. The lifting effect of the arc plate can regulate the direction of the line, maintain the distance between the detection lines, reduce the risk of failure caused by the lines being entangled or overlapped, and ensure the smooth execution of the insulation detection process.

[0019] (5) The offshore wind power generation step-up transformer on-off protection device slowly deforms the hollow tube so that the lifting frame can only move slowly upward to lift the detection line. The slow deformation characteristics of the hollow tube can make the lifting frame rise at a speed that matches the flexibility of the detection line, ensuring that the detection line stretches naturally and avoiding excessive stretching of the detection line caused by lifting too quickly. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 This is a schematic diagram of the structure of the boost transformer body and the storage plate of the present invention;

[0022] Figure 3 For the present invention Figure 2 A schematic diagram of the structure of part A in the middle;

[0023] Figure 4 This is a schematic diagram of the static socket and detection line position structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the position structure of the screw rod and the insulating plate of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the storage rack and the buckle rod positions of the present invention;

[0026] Figure 7 For the present invention Figure 6 A magnified schematic diagram of the structure of part B;

[0027] Figure 8 This is a schematic diagram of the position structure of the static socket and the movable plate of the present invention.

[0028] In the figure: 1. Step-up transformer body; 2. Storage plate; 21. Storage rack; 3. Dynamic plug; 4. Static socket; 5. Storage hole; 6. Screw; 7. Insulation plate; 8. Linkage plate; 9. Movable slot; 10. Movable plate; 11. Pressing plate; 12. Elastic telescopic block; 13. Pressing rack; 14. U-shaped plate; 151. Snap rod; 152. Snap plate; 153. Arc block; 154. Snap spring; 155. Support rod; 156. Support block; 161. Lifting hole; 162. Lifting rack; 163. Lifting spring; 164. Arc hole; 165. Arc plate; 166. Hollow cylinder; 17. Detection line. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 7 One embodiment of the present invention is: a power-on and power-off protection device for an offshore wind power generation booster transformer, comprising a booster transformer body 1, and a storage plate 2, the storage plate 2 being fixedly mounted on the top of the booster transformer body 1, a storage rack 21 being fixedly mounted on the front side of the storage plate 2, a storage hole 5 being opened on the front side of the storage plate 2, a screw rod 6 being rotatably mounted on the inner wall of the storage hole 5, an insulating plate 7 being slidably mounted on the inner wall of the storage hole 5, a movable plug 3 being fixedly mounted on the front side of the insulating plate 7, a static socket 4 being fixedly mounted on the front side of the storage rack 21, a detection line 17 being arranged on the front side of the static socket 4, a power line being arranged between the movable plug 3 and the booster transformer body 1, and a linkage plate 8 being fixedly mounted on the top of the movable plug 3; a movable slot 9 , the movable groove 9 is opened on the front side of the static socket 4, and the insulating plate 7 is threadedly connected to the screw rod 6; the movable plate 10, the movable plate 10 is slidably installed on the inner wall of the movable groove 9, and the movable groove 9 is used to carry the movable plate 10; a pressing plate 11 is fixedly installed on the top of the movable plate 10, and an elastic telescopic block 12 is fixedly installed on the right side of the bottom of the movable plate 10. A pressing frame 13 is fixedly installed on the output end of the elastic telescopic block 12, and a U-shaped plate 14 is fixedly installed on the front side of the static socket 4. The stable support effect of the pressing frame 13 can prevent the impact of ocean currents from causing the equipment to be tested to fall over and causing the detection line 17 to be pulled out, thereby ensuring that the insulation detection data is stable and reliable, and the insulation detection of the equipment to be tested can be performed through the step-up transformer body 1.

[0031] A spring 1 is provided between the movable plate 10 and the movable groove 9. The movable plate 10 moves upward to apply a pulling force to the spring 1. The spring 1 is deformed and stores force due to the pulling of the movable plate 10. After the movable plate 10 is out of contact with the linkage plate 8, the spring 1 can drive the movable plate 10 to reset. The right side of the pressing frame 13 is set as an inclined surface, and the pressing frame 13 passes through the right side of the pressing plate 11.

[0032] The pressing frame 13 contacts the inner wall of the pressing plate 11, and the left and right ends of the movable plug 3 are set as inclined surfaces. The pressing plate 11 moves upward to cooperate with the U-shaped plate 14 to provide preliminary support for the detection line 17. The U-shaped plate 14 forms a wrapped fixation for the detection line 17 to limit its lateral shaking, thereby preventing the detection line 17 from being damaged due to stress concentration or the internal cable from being broken. The movable plug 3 moves upward to connect with the static socket 4, thereby connecting the equipment to be detected with the step-up transformer body 1.

[0033] When this embodiment is working: the device to be tested is connected to the step-up transformer body 1 through the detection line 17, and the servo motor at the bottom of the screw rod 6 is started to rotate the screw rod 6. The rotation of the screw rod 6 drives the insulating plate 7 to move upward, and the upward movement of the insulating plate 7 drives the movable plug 3 to move upward. The upward movement of the movable plug 3 drives the linkage plate 8 to move upward, and the linkage plate 8 moves upward to contact the bottom of the movable plate 10 and squeeze the movable plate 10. The movable plate 10 is squeezed and moves upward by the linkage plate 8. The movable plate 10 moves upward and drives the pressing plate 11 to move upward. The pressing plate 11 moves upward to cooperate with the U-shaped plate 14 to provide preliminary support for the detection line 17. At the same time, the movable plate 10 The upward movement drives the elastic telescopic block 12 to move upward, and the upward movement of the elastic telescopic block 12 drives the pressing frame 13 to move upward, and the pressing frame 13 moves upward to contact the U-shaped plate 14 and squeeze the U-shaped plate 14. The pressing frame 13 is subjected to the reaction force of squeezing the U-shaped plate 14 and moves to the left. The pressing frame 13 moves to the left to squeeze the free end of the elastic telescopic block 12, and the free end of the elastic telescopic block 12 is squeezed and retracted by the pressing frame 13 and accumulates force. At the same time, the pressing frame 13 moves to the left to contact the detection line 17 and squeezes and fixes the detection line 17. After the detection line 17 is fixed, the step-up transformer body 1 is started to perform insulation test on the equipment to be tested.

[0034] See also Figures 1-8Based on the above embodiment, in another embodiment of the present invention, a shielding assembly for improving the sealing between the movable plug 3 and the static socket 4 is provided on the inner wall of the storage rack 21, and a lifting assembly for lifting the detection line 17 is provided on the front side of the storage plate 2. The shielding assembly includes a snap rod 151, a snap plate 152 and an arc block 153. The snap rod 151 is fixedly mounted on the inner wall of the storage rack 21, and the snap plate 152 is slidably mounted on the circumferential surface of the snap rod 151. The arc block 153 is fixedly mounted on the right side of the snap plate 152. The snap plate 152 is separated from the contact with the movable plug 3 and the static socket 4, which can quickly disconnect the two. This greatly simplifies the maintenance process and avoids damage to the interface of the movable plug 3 due to difficult disassembly. There are two sets of snap rods 151, snap plates 152, arc blocks 153, snap springs 154, support rods 155 and support blocks 156. In the other set, the arc block 153 is fixedly mounted on the left side of the snap plate 152.

[0035] The shielding assembly also includes a snap spring 154, a support rod 155 and a support block 156. The snap spring 154 is arranged between the snap rod 151 and the snap plate 152. The snap plate 152 moves in the direction close to the static socket 4 to apply a pulling force to the snap spring 154. The snap spring 154 is deformed and stores force under the pull of the snap plate 152. After the arc block 153 is out of contact with the dynamic plug 3, the snap plate 152 can be driven to reset by the snap spring 154. The support rod 155 is fixedly mounted on the inner wall of the storage rack 21, and the support block 156 is fixedly mounted on the circumferential surface of the support rod 155. The snap plate 152 moves in the direction close to the static socket 4 to shield and seal the side edges of the dynamic plug 3 and the static socket 4. After the snap plate 152 shields and seals, a physical barrier can be formed to prevent moisture from adhering to the dynamic plug 3, thereby avoiding misjudgment of insulation detection due to condensation of water vapor, and ensuring that the detection data truly reflects the insulation status of the equipment to be detected.

[0036] The support block 156 is in contact with the snap plate 152, the support rod 155 passes through the left and right walls of the snap plate 152, and the left side of the snap rod 151 is fixedly connected to the static socket 4. The stable reset and anti-shake of the snap plate 152 can ensure that the snap plate 152 is always in the set position, avoiding the degradation of shielding performance caused by shaking and deformation.

[0037] The lifting assembly includes a lifting hole 161, a lifting frame 162, a lifting spring 163, an arc hole 164, an arc plate 165 and a hollow cylinder 166. The arc plate 165 moves upward to contact the detection line 17 and lift the detection line 17. The lifting hole 161 is opened on the front side of the storage plate 2. The lifting frame 162 is slidably installed on the inner wall of the lifting hole 161. The lifting spring 163 is arranged between the lifting hole 161 and the lifting frame 162. The lifting frame 162 moves upward to apply a pulling force to the lifting spring 163. The lifting spring 163 The lifting frame 162 is pulled and deformed to accumulate force. After the lifting frame 162 is released from contact with the snap plate 152, the lifting frame 162 is reset by the lifting spring 163. The arc-shaped hole 164 is formed on the front side of the lifting frame 162. The arc-shaped plate 165 is fixedly mounted on the inner wall of the arc-shaped hole 164. The hollow cylinder 166 is fixedly mounted on the inner wall of the lifting hole 161. The lifting effect of the arc-shaped plate 165 can regulate the line direction, maintain the spacing of the detection lines 17, and reduce the risk of failure caused by the lines being entangled or overlapped.

[0038] The bottom of the lifting frame 162 is set as an inclined surface, the hollow cylinder 166 is elastic, the arc plate 165 is elastic, the hollow cylinder 166 conflicts with the lifting frame 162, and the lifting frame 162 moves downward to reset and disengage from the contact with the detection line 17 and releases the support for the detection line 17. The slow deformation characteristics of the hollow cylinder 166 can make the lifting frame 162 rise at a speed matching the flexibility of the detection line 17, ensuring that the detection line 17 stretches naturally.

[0039] When this embodiment is working, the movable plug 3 moves upward and contacts the arc surface block 153 and squeezes the arc surface block 153. The arc surface block 153 is squeezed by the movable plug 3 and moves toward the direction close to the static socket 4. The arc surface block 153 moves toward the direction close to the static socket 4 and drives the snap plate 152 to move. The snap plate 152 moves toward the direction close to the static socket 4 and shields and seals the side of the movable plug 3 and the static socket 4. After the insulation test is completed, the servo motor drives the screw rod 6 to rotate in the opposite direction. The screw rod 6 rotates in the opposite direction and drives the insulating plate 7 to move downward. The insulating plate 7 moves downward and drives the movable plug 3 to move downward. The movable plug 3 moves downward to break away from the contact with the static socket 4 and disconnects from the static socket. The socket 4 is connected, and the movable plug 3 moves downward to disengage from the contact with the arc block 153. After the arc block 153 disengages from the contact with the movable plug 3, the snap plate 152 moves to the right and resets under the elastic force of the snap spring 154. The snap plate 152 moves to the right and resets to disengage from the movable plug 3 and the static socket 4. The snap plate 152 disengages from the contact with the movable plug 3 and the static socket 4, thereby facilitating the disconnection of the movable plug 3 from the static socket 4. At the same time, the snap plate 152 moves to the right and resets to contact the support block 156 and is limited by the support block 156. The snap plate 152 is limited by the support block 156 to ensure that the snap plate 152 does not shake excessively when it is reset.

[0040] The snap plate 152 moves toward the direction close to the static socket 4 and contacts the inclined surface at the bottom of the lifting frame 162 and squeezes the lifting frame 162. The lifting frame 162 moves upward due to the squeezing of the snap plate 152. The upward movement of the lifting frame 162 drives the arc plate 165 to move upward. The arc plate 165 moves upward and contacts the detection line 17 and lifts the detection line 17. At the same time, the lifting frame 162 moves upward and contacts the hollow cylinder 166 and squeezes the hollow cylinder 166. The hollow cylinder 166 is squeezed by the lifting frame 162 and slowly deforms. The hollow cylinder 166 slowly deforms so that the lifting frame 162 can only move slowly upward to lift the detection line 17. When the snap plate 152 moves to the right and resets under the elastic force of the snap spring 154, the snap plate 152 moves to the right and breaks away from the contact with the lifting frame 162. After the lifting frame 162 breaks away from the contact with the snap plate 152, the lifting frame 162 moves downward and resets under the elastic force of the lifting spring 163. The lifting frame 162 moves downward and resets to break away from the contact with the detection line 17 and releases the support for the detection line 17.

[0041] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A power-on / off protection device for an offshore wind power generation step-up transformer, comprising a step-up transformer body (1), characterized in that: It also includes a storage plate (2), the storage plate (2) is fixedly mounted on the top of the step-up transformer body (1), a storage rack (21) is fixedly mounted on the front side of the storage plate (2), a storage hole (5) is opened on the front side of the storage plate (2), a screw rod (6) is rotatably mounted on the inner wall of the storage hole (5), an insulating plate (7) is slidably mounted on the inner wall of the storage hole (5), a movable plug (3) is fixedly mounted on the front side of the insulating plate (7), a static socket (4) is fixedly mounted on the front side of the storage rack (21), a detection line (17) is provided on the front side of the static socket (4), a power line is provided between the movable plug (3) and the step-up transformer body (1), and a linkage plate (8) is fixedly mounted on the top of the movable plug (3); A movable groove (9), the movable groove (9) is provided on the front side of the static socket (4), and the insulating plate (7) is threadedly connected to the screw rod (6); A movable plate (10), the movable plate (10) being slidably mounted on the inner wall of the movable groove (9), the movable groove (9) being used to support the movable plate (10); A pressing plate (11) is fixedly mounted on the top of the movable plate (10), an elastic telescopic block (12) is fixedly mounted on the right side of the bottom of the movable plate (10), a pressing frame (13) is fixedly mounted on the output end of the elastic telescopic block (12), and a U-shaped plate (14) is fixedly mounted on the front side of the static socket (4); The pressing frame (13) passes through the right side of the pressing plate (11), and the pressing frame (13) contacts the inner wall of the pressing plate (11); The linkage plate (8) moves upward to contact the bottom of the movable plate (10) and squeeze the movable plate (10). The movable plate (10) is squeezed upward by the linkage plate (8). The movable plate (10) moves upward to drive the pressing plate (11) to move upward. The pressing plate (11) moves upward to cooperate with the U-shaped plate (14) to provide preliminary support for the detection line (17). At the same time, the movable plate (10) moves upward to drive the elastic telescopic block (12) to move upward. The elastic telescopic block (12) moves upward to drive the pressing frame (13). The pressing frame (13) moves upward and contacts the U-shaped plate (14) and squeezes the U-shaped plate (14). The pressing frame (13) is moved to the left by the reaction force of the squeezing U-shaped plate (14). The pressing frame (13) moves to the left to squeeze the free end of the elastic telescopic block (12). The free end of the elastic telescopic block (12) is squeezed and retracted by the pressing frame (13) and stores force. At the same time, the pressing frame (13) moves to the left to contact the detection line (17) and squeezes and fixes the detection line (17).

2. The offshore wind power generation step-up transformer on-off protection device according to claim 1, characterized in that: A spring 1 is provided between the movable plate (10) and the movable groove (9), and the right side of the pressing frame (13) is provided as an inclined surface.

3. The on-off protection device for offshore wind power generation step-up transformer according to claim 2, characterized in that: The left and right ends of the movable plug (3) are arranged as inclined surfaces, the inner wall of the storage rack (21) is provided with a shielding component for improving the sealing between the movable plug (3) and the static socket (4), and the front side of the storage plate (2) is provided with a lifting component for lifting the detection line (17).

4. The offshore wind power generation step-up transformer on-off protection device according to claim 3, characterized in that: The shielding assembly comprises a snap rod (151), a snap plate (152) and an arc surface block (153); the snap rod (151) is fixedly mounted on the inner wall of the storage rack (21); the snap plate (152) is slidably mounted on the circumferential surface of the snap rod (151); and the arc surface block (153) is fixedly mounted on the right side of the snap plate (152).

5. The on-off protection device for offshore wind power generation step-up transformer according to claim 4, characterized in that: The shielding assembly further comprises a snap spring (154), a support rod (155) and a support block (156); the snap spring (154) is arranged between the snap rod (151) and the snap plate (152); the support rod (155) is fixedly mounted on the inner wall of the storage rack (21); and the support block (156) is fixedly mounted on the circumferential surface of the support rod (155).

6. The on-off protection device for offshore wind power generation step-up transformer according to claim 5, characterized in that: The support block (156) contacts the snap plate (152), the support rod (155) passes through the left and right walls of the snap plate (152), and the left side of the snap rod (151) is fixedly connected to the static socket (4).

7. The on-off protection device for offshore wind power generation step-up transformer according to claim 6, characterized in that: The lifting assembly includes a lifting hole (161), a lifting frame (162), a lifting spring (163), an arc hole (164), an arc plate (165) and a hollow cylinder (166), wherein the lifting hole (161) is provided on the front side of the storage plate (2), the lifting frame (162) is slidably mounted on the inner wall of the lifting hole (161), the lifting spring (163) is arranged between the lifting hole (161) and the lifting frame (162), the arc hole (164) is provided on the front side of the lifting frame (162), the arc plate (165) is fixedly mounted on the inner wall of the arc hole (164), and the hollow cylinder (166) is fixedly mounted on the inner wall of the lifting hole (161).

8. The on-off protection device for offshore wind power generation step-up transformer according to claim 7, characterized in that: The bottom of the lifting frame (162) is configured as an inclined surface, the hollow cylinder (166) is elastic, the arc-shaped plate (165) is elastic, and the hollow cylinder (166) is in contact with the lifting frame (162).

Images