Locking device for preventing misoperation of electric power system

Abstract

The invention discloses a locking device for preventing misoperation of a power system, and relates to the technical field of locking. In order to improve the locking rate; comprising a locking part and an unlocking part which are used for protecting a power system main body, the power system main body comprises a mounting box body and a box door, and the box door is connected to the outer wall of one side of the mounting box body through a hinge. According to the invention, the switch toggle sheet is automatically bounced off when a circuit breaks down and is used as a trigger mechanism to trigger the locking part for locking, the locking can be realized without using any electric power, and the convex hole is arranged to be convex, so that the convex hole contacts with the limit of the rotating roller after transverse movement, and the locking effect is improved. The locking block is inserted into the inner wall of the first lock hole and the inner wall of the fourth lock hole under the driving action of the first swing arm, the rotating disc and the second swing arm, so that quick locking between the installation box body and the box door can be achieved after the power system body breaks down, and potential safety hazards caused by the fact that a non-professional person mistakenly touches the switch shifting piece are avoided.

Description

Technical Field

[0001] The present invention relates to the field of locking technology, and in particular to a locking device for preventing misoperation of an electric power system. Background Art

[0002] In the prior art, with the development of science and the progress of society, modern equipment is gradually entering people's lives. Modern equipment not only makes people's lives more convenient, but also brings great convenience to people's lives as an indispensable resource in today's rapid development of human beings. Most of the power systems for household or commercial use are not included in the five-prevention operation process. This makes people operate the power system in their daily life. When the power system fails, such as a short circuit, if non-professional maintenance personnel accidentally touch the power system at this time, it will have a greater safety hazard. Based on this, the present application proposes a locking device for preventing misoperation of the power system; After searching, the Chinese patent application number 201711016537.7 discloses a locking device for preventing misoperation of the power system, whose structure includes a locking disk, an anti-misoperation interlocking control mechanism, an output shaft, an execution button, a wiring push seat, a locking controller, and an alarm switch. A locking disk is provided at the front end of the locking controller. The locking disk and the locking controller are an integrated structure and are parallel to each other, and the alarm switch is embedded in the locking disk.

[0003] A locking device for preventing misoperation of the power system in the above patent has the following shortcomings: the locking and unlocking of the above device can only be triggered after the user makes a misoperation, but the user has safety hazards in the process of making a misoperation, so the locking of the device cannot be triggered before the user touches it by mistake, so it has a lag in preventing misoperation. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a locking device for preventing misoperation of an electric power system.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A locking device for preventing misoperation of an electric power system, comprising a locking part and an unlocking part for protecting a main body of the electric power system, wherein the main body of the electric power system comprises an installation box and a box door, wherein the box door is connected to an outer wall of one side of the installation box through a hinge, a locking plate 1 is welded to an inner wall of the bottom of the installation box, and a lock hole 1 is provided on the surface of the locking plate 1, a locking plate 2 is welded to an outer wall of one side of the box door, and a lock hole 4 is provided on the surface of the locking plate 2, and the main body of the electric power system further comprises an air switch and a switch toggle plate, wherein the air switch is fixed to an inner wall of one side of the installation box, and the switch toggle plate is movably connected to the surface of the air switch; The locking part comprises a limit rod and a cross plate 1, the cross plate 1 is fixed to an inner wall of one side of the box door, the limit rod is movably connected to the inner wall of a through hole opened on the surface of the cross plate 1, and a U-shaped frame is welded at the bottom of the limit rod, and rotating rollers are movably connected to the inner walls on both sides of the U-shaped frame, a square plate is welded to the inner wall of one side of the box door, and the inner wall of the through hole opened on the surface of the square plate is movably connected to a vertical rod, and one end of the vertical rod is fixed to the outer wall of one side of the U-shaped frame by a pin, and an adjusting frame 1 is welded to the outer wall on the other side of the vertical rod, a vertical plate is welded to the inner wall of one side of the box door, and the inner wall of the through hole opened on the surface of the vertical plate is movably connected to a rotating disk, and the outer wall of one side of the rotating disk and the inner wall of the adjusting frame 1 are movably connected with the same swing arm 2, and the outer wall of one side of the rotating disk is movably connected with a pin connection component for locking the lock hole 1 and the lock hole 4.

[0006] Preferably: a sliding seat is welded on the inner wall of one side of the installation box, a slide plate is movably connected to the inner wall of the sliding seat, and the same movable plate is welded between the two slide plates, and a convex hole is opened on the surface of the movable plate, and an arc block adapted to the switch toggle piece is integrally formed on the outer wall of one side of the movable plate.

[0007] Preferably: the pin connection assembly includes a guide plate and a transverse column, the guide plate is fixed to the inner wall of one side of the box door, the transverse column is movably connected to the inner wall of the through hole opened on the surface of the guide plate, and one end of the transverse column is fixed with a locking block adapted to the inner diameter of lock hole one and lock hole four by a pin.

[0008] As a preferred embodiment of the present invention: an adjusting frame 2 is welded to the other end of the transverse column, and a same swing arm 1 is movably connected between the inner wall of the adjusting frame 2 and the outer wall of one side of the rotating disk.

[0009] As a preferred embodiment of the present invention: a contact is fixed on an outer wall of one side of the adjustment frame, an alarm is fixed on an inner wall of one side of the box door, and a contact point adapted to the contact is provided at one end of the alarm.

[0010] As a preferred embodiment of the present invention: the unlocking part includes an unlocking column and a driving plate, the driving plate is integrally formed at the end of the unlocking column, an unlocking plate is welded to the inner wall of one side of the box door, and the inner diameter of the unlocking plate is matched with the unlocking column and the driving plate, and a rotating groove matched with the inner diameter of the unlocking plate is opened on the surface of the rotating disk.

[0011] Furthermore: the outer wall of the guide plate is movably connected with a locking plate, and the outer wall on one side of the locking plate is integrally formed with a locking pin 1 and a locking pin 2.

[0012] As a further solution of the present invention: the second surface of the locking plate is provided with a lock hole three that matches the second locking pin, and the first surface of the locking plate is provided with a lock hole two that matches the first locking pin.

[0013] As a further solution of the present invention: the through hole opened on the surface of the locking plate is movably connected with a lever, and a rotating plate adapted to the rotating groove is welded to one end of the lever, and a protrusion is fixed to the other end of the lever by a pin, and a bent rod is fixed to the outer wall of one side of the adjustment frame by a pin, and an extrusion block is welded to one end of the bent rod.

[0014] As a further solution of the present invention: a guide rod and a support plate are welded to the outer wall of the top of the sliding seat, the inner wall of the through hole opened on the surface of the driving plate is rotatably connected to the rotating shaft, and a lever is fixed to the outer wall of the circumference of the rotating shaft by a pin, and a shift fork is welded to the outer wall of one side of the lever, the outer wall of the guide rod is slidably connected to an extension plate, and an insert plate is welded to the outer wall of one side of the extension plate, and a card groove matching the insert plate is opened on the surface of the moving plate, a guide rod is fixed to the outer wall of one side of the insert plate by a pin, and a waist-shaped hole matching the outer diameter of the guide rod is opened on the surface of the lever, and the same spring is fixed between the outer wall of one side of the moving plate and the inner wall of one side of the box door by a pin.

[0015] The beneficial effects of the present invention are: 1. The switch toggle piece is automatically popped open as a trigger mechanism to trigger the locking part to lock when a circuit fails. Locking can be achieved without using any electricity. The convex hole is set to a "convex" shape so that the convex hole contacts the limit of the rotating roller after lateral movement, so that the locking block is inserted into the inner wall of the lock hole 1 and the lock hole 4 under the driving action of the swing arm 1, the rotating disk and the swing arm 2. Therefore, the installation box and the box door can be quickly locked after a failure of the main body of the power system, thereby avoiding the accidental touching of the switch toggle piece by non-professionals to cause safety hazards.

[0016] 2. By fixing the contact on the adjustment frame, when the contact moves to contact the contact surface, the alarm is triggered to alarm, thereby reminding users and maintenance personnel to inspect and maintain the main body of the power system.

[0017] 3. By providing an unlocking column and a driving plate, it can be inserted into the rotating groove under the guidance of the unlocking plate to unlock the locking part, so that it can be ensured that the locking part can only be opened by using the unlocking column and the driving plate after being triggered, thereby ensuring safety in use.

[0018] 4. By providing an extrusion block, the protrusion can be moved, so that the protrusion can drive locking pin 1 and locking pin 2 to be inserted into lock hole 2 and lock hole 3 respectively during the lateral movement, thereby performing secondary locking between locking plate 1 and locking plate 2.

[0019] 5. By setting the locking part to be triggered only when a fault occurs in the main body of the power system, it can be ensured that when the power system is in normal working condition, when the user needs to toggle the switch to switch the circuit, the box door can be directly opened along the installation box, thereby not affecting the daily operation of the main body of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a locking device for preventing misoperation of a power system proposed by the present invention; Figure 2 It is a schematic diagram of the explosion structure of a locking device for preventing misoperation of a power system proposed by the present invention; Figure 3 It is a schematic diagram of the installation structure of a locking part of a locking device for preventing misoperation of a power system proposed by the present invention; Figure 4 It is a schematic diagram of the exploded structure of a locking part main body and a mounting plate of a locking device for preventing misoperation of an electric power system proposed by the present invention; Figure 5 It is a schematic diagram of the explosion structure of a locking part of a locking device for preventing misoperation of a power system proposed by the present invention; Figure 6 It is a schematic diagram of the partial structure of a locking part of a locking device for preventing misoperation of a power system proposed by the present invention; Figure 7 It is a schematic diagram of the installation structure of a secondary locking assembly of a locking device for preventing misoperation of an electric power system proposed by the present invention; Figure 8 It is a schematic diagram of the installation structure of an auxiliary return assembly of a locking device for preventing misoperation of an electric power system proposed by the present invention; Fig. 9 The diagram is a schematic diagram of the exploded structure of an auxiliary return assembly of a locking device for preventing misoperation of an electric power system proposed by the present invention.

[0021] In the figure: 1-installation box, 2-box door, 3-unlocking column, 4-air switch, 5-lock hole 1, 6-locking plate 1, 7-limit rod, 8-horizontal plate 1, 9-sliding seat, 10-guide plate, 11-contact, 12-moving plate, 13-arc block, 14-extrusion block, 15-card plate, 16-locking plate 2, 17-unlocking plate, 18-alarm, 19-convex hole, 20-switch toggle plate, 21-slide plate, 22-horizontal column, 23-swing arm 1, 24-contact, 25-rotating roller, 26-U-shaped frame, 27-vertical rod, 28 -Adjusting frame one, 29-bending rod, 30-locking block, 31-adjusting frame two, 32-rotating disk, 33-rotating groove, 34-spring, 35-square plate, 36-vertical plate, 37-bump, 38-shift rod, 39-rotating plate, 40-driving plate, 41-locking hole two, 42-locking pin one, 43-locking pin two, 44-locking hole three, 45-locking hole four, 46-swing arm two, 47-guide rod, 48-extension plate, 49-support plate, 50-slot, 51-insertion plate, 52-guide rod, 53-rotating shaft, 54-lever, 55-shift fork. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] Embodiment 1: A locking device for preventing misoperation of an electric power system, such as Figures 1 to 7 As shown, it includes a locking part and an unlocking part for protecting the main body of the power system, the main body of the power system includes an installation box 1 and a box door 2, the box door 2 is connected to the outer wall of one side of the installation box 1 through a hinge, a locking plate 6 is welded to the inner wall of the bottom of the installation box 1, and a lock hole 5 is opened on the surface of the locking plate 6, a locking plate 16 is welded to the outer wall of one side of the box door 2, and a lock hole 45 is opened on the surface of the locking plate 16, the main body of the power system also includes an air switch 4 and a switch toggle piece 20, the air switch 4 is fixed to the inner wall of one side of the installation box 1 by screws, and the switch toggle piece 20 is rotatably connected to the surface of the air switch 4; The locking part includes a limit rod 7 and a cross plate 8, the cross plate 8 is fixed to the inner wall of one side of the box door 2 by screws, the limit rod 7 is slidably connected to the inner wall of the through hole opened on the surface of the cross plate 8, and a U-shaped frame 26 is welded at the bottom of the limit rod 7, and the inner walls on both sides of the U-shaped frame 26 are rotatably connected with rotating rollers 25, a square plate 35 is welded to the inner wall of one side of the box door 2, and the inner wall of the through hole opened on the surface of the square plate 35 is slidably connected with a vertical rod 27, and one end of the vertical rod 27 is fixed to the outer wall of one side of the U-shaped frame 26 by a pin, and an adjusting frame 28 is welded to the outer wall of the other side of the vertical rod 27, a vertical plate 36 is welded to the inner wall of one side of the box door 2, and the inner wall of the through hole opened on the surface of the vertical plate 36 is rotatably connected with a rotating disk 32, and the outer wall of one side of the rotating disk 32 and the inner wall of the adjusting frame 28 are rotatably connected with the same swing arm 246, and the outer wall of one side of the rotating disk 32 is rotatably connected with a pin connection component for locking the lock hole 5 and the lock hole 45; A slide seat 9 is welded to the inner wall of one side of the installation box 1, a slide plate 21 is slidably connected to the inner wall of the slide seat 9, and a same moving plate 12 is welded between the two slide plates 21, and a convex hole 19 is opened on the surface of the moving plate 12, and an arc block 13 adapted to the switch toggle piece 20 is integrally formed on the outer wall of one side of the moving plate 12; The air switch 4 can be fixed by using the installation box 1. When the current in the power system exceeds the rated current, in order to protect the safety of the power system, the switch toggle piece 20 on the air switch 4 will automatically pop down to ensure the safety of the power system. In this process, in order to prevent non-professionals from toggling the switch toggle piece 20 again during the inspection, which may cause accidents, a locking part is introduced to prevent misoperation protection. When the switch toggle piece 20 automatically pops down when a power failure occurs, it will squeeze the surface of the arc block 13. At this time, the arc block 13 drives the moving plate 12 and the slide plate 21 to slide laterally along the slide seat 9 after being pushed, so that the moving plate 12 gradually moves toward the direction close to the box door 2. During the movement of the moving plate 12, the position of the convex hole 19 relative to the bottom of the rotating roller 25 will change accordingly. In the initial stage, since the convex hole 19 is a convex structure, the top of the moving plate 12 can play a role in the bottom of the rotating roller 25. The supporting function is that the rotating roller 25 remains stationary in the horizontal direction at this time. When the moving plate 12 moves in the horizontal direction, the wider opening area of ​​the convex hole 19 moves to the bottom of the rotating roller 25. At this time, the moving plate 12 no longer blocks the rotating roller 25. At this time, the rotating roller 25 moves downward in the vertical direction. The vertical movement of the vertical rod 27 can be converted into the circular movement of the rotating disk 32 by using the swing arm 246. The rotating disk 32 can drive the pin-jointed assembly during the rotation process, so that the pin-jointed assembly can be inserted into the lock hole 45 and the lock hole 15 in sequence during the movement process. The lock hole 15 and the locking plate 2 16 can be limited by the pin-jointed assembly. Because the locking plate 1 6 is fixed on the installation box 1 and the locking plate 2 16 is fixed on the box door 2, the installation box 1 and the box door 2 are temporarily locked, so that non-professionals cannot open the box door 2 without special opening tools, thereby avoiding the danger caused by non-professionals accidentally touching the switch toggle piece 20; At the same time, during daily use, when the user needs to push the switch toggle plate 20 downward during the normal operation of the power system, so as to manually turn the power on and off the power system, the switch toggle plate 20 will not be pushed downward before human intervention, and the locking part will not be triggered. Therefore, it can be ensured that the user can rotate the box door 2 along the installation box 1 to open it without using an opening tool, thereby not affecting the daily use of the air switch 4 and the switch toggle plate 20. Therefore, by setting the locking part to be triggered only when a fault occurs in the main body of the power system, it will not affect the daily use of the main body of the power system.

[0025] Further, the pin-jointed assembly includes a guide plate 10 and a transverse column 22, the guide plate 10 is fixed to the inner wall of one side of the box door 2 by screws, the transverse column 22 is slidably connected to the inner wall of the through hole opened on the surface of the guide plate 10, one end of the transverse column 22 is fixed with a locking block 30 adapted to the inner diameter of the lock hole 15 and the lock hole 45 by a pin, the other end of the transverse column 22 is welded with an adjustment frame 2 31, and the same swing arm 1 23 is rotatably connected between the inner wall of the adjustment frame 2 31 and the outer wall of one side of the rotating disk 32; During the rotation of the rotating disk 32, the swing arm 23 is used to convert the circular motion of the rotating disk 32 into the lateral motion of the lateral column 22 and the locking block 30, so that the locking block 30 is inserted into the inner wall of the lock hole 45 and the inner wall of the lock hole 15 in sequence during the movement, so that the installation box 1 and the box door 2 can be locked between the two when a fault occurs in the main body of the power system.

[0026] Furthermore, a contact 24 is fixed to the outer wall of one side of the adjustment frame 28 by screws, an alarm 18 is fixed to the inner wall of one side of the door 2 by screws, and a contact 11 adapted to the contact 24 is provided at one end of the alarm 18; When a fault occurs in the main body of the power system, the adjustment frame 28 drives the contact 24 to move synchronously during the downward movement in the vertical direction. When the contact 24 moves to contact with the contact 11, the contact 11 activates the alarm 18 by triggering, so that the alarm 18 can generate an alarm, thereby promptly reminding the user. At the same time, a wireless transmission module is provided inside the alarm 18. When the user is not on site, the signal can be sent to the mobile phone or computer of the user and maintenance professional by wireless transmission for reminder.

[0027] Furthermore, the unlocking part includes an unlocking column 3 and a driving plate 40, the driving plate 40 is integrally formed at the end of the unlocking column 3, an unlocking plate 17 is welded to the inner wall of one side of the door 2, and the inner diameter of the unlocking plate 17 is adapted to the unlocking column 3 and the driving plate 40, and a rotating groove 33 adapted to the inner diameter of the unlocking plate 17 is opened on the surface of the rotating disk 32; When maintenance professionals need to repair the main body of the power system, the unlocking column 3 and the drive plate 40 are inserted horizontally into the unlocking plate 17, so that the ends of the unlocking column 3 and the drive plate 40 are finally inserted into the rotating groove 33, and the unlocking column 3 and the drive plate 40 are rotated so that the drive plate 40 can move the rotating groove 33 and the rotating disk 32, so that the rotating disk 32 can be reset during the rotation process. During the resetting process, the locking block 30 is disengaged from the inner walls of the lock hole 1 5 and the lock hole 4 45 in turn, thereby achieving unlocking.

[0028] When the present embodiment is in use, when a circuit failure occurs, the switch toggle piece 20 will rotate downward along the air switch 4 to realize automatic pop-up. The switch toggle piece 20 will toggle the surface of the arc block 13 during the pop-up process. After being toggled, the arc block 13 drives the moving plate 12 to move horizontally. Since the position of the rotating roller 25 in the vertical direction is limited by the limit rod 7 and the horizontal plate 1 8, when the wider area of ​​the convex hole 19 moves to the bottom of the rotating roller 25, the rotating roller 25 and the U-shaped frame 26 move downward under their own gravity, and the vertical position of the vertical rod 27 is moved by the swing arm 2 46. The linear motion is converted into the circular motion of the rotating disk 32. During the rotation process, the rotating disk 32 drives the locking block 30 to move horizontally through the swing arm 23 and is inserted into the inner wall of the lock hole 45 and the inner wall of the lock hole 5 in sequence, thereby realizing the locking between the installation box body 1 and the box door 2. When the locking part needs to be opened, the unlocking column 3 and the driving plate 40 are inserted horizontally along the unlocking plate 17. When the driving plate 40 is inserted into the inner wall of the rotating groove 33, the unlocking column 3 is rotated, so that the rotating disk 32 drives the locking block 30 to reset during the rotation process, thereby unlocking the locking part.

[0029] Embodiment 2: A locking device for preventing misoperation of an electric power system, such as Figures 1 to 9 As shown, in order to further improve the safety during locking; this embodiment makes the following supplements on the basis of embodiment 1: the outer wall of the guide plate 10 is slidably connected with a positioning plate 15, and a locking pin 1 42 and a locking pin 2 43 are integrally formed on the outer wall of one side of the positioning plate 15, and a locking hole 3 44 adapted to the locking pin 2 43 is provided on the surface of the locking plate 2 16, and a locking hole 2 41 adapted to the locking pin 1 42 is provided on the surface of the locking plate 16, and a through hole provided on the surface of the positioning plate 15 is rotatably connected with a lever 38, and a rotating plate 39 adapted to the rotating groove 33 is welded at one end of the lever 38, and a protrusion 37 is fixed at the other end of the lever 38 by a pin, and a bent rod 29 is fixed to the outer wall of one side of the adjustment frame 28 by a pin, and an extrusion block 14 is welded at one end of the bent rod 29; When the locking part is started, the extrusion block 14 pushes the protrusion 37 in the process of synchronously moving downward with the adjustment frame 28. After being pushed, the protrusion 37 can move laterally, so that the locking pin 23 is inserted into the inner wall of the locking hole 3 44 after the lateral movement, and the locking pin 1 42 is inserted into the inner wall of the locking hole 2 41 after the lateral movement, thereby realizing the secondary locking between the locking plate 1 6 and the locking plate 2 16. The protrusion 37 can push the rotating plate 39 to move a certain distance along the unlocking plate 17 while moving laterally. When unlocking, when the unlocking column 3 and the driving plate 40 are inserted into the unlocking plate 17 laterally, the ends of the unlocking column 3 and the driving plate 40 first push the rotating plate 39, so that the rotating plate 39, the unlocking column 3 and the driving plate 40 are finally inserted into the inner wall of the rotating groove 33 as a whole, and the unlocking column 3 and the driving plate 40 can be unlocked after rotation.

[0030] Further, a guide rod 47 and a support plate 49 are welded to the outer wall of the top of the slide 9, a rotating shaft 53 is rotatably connected to the inner wall of the through hole opened on the surface of the driving plate 40, and a lever 54 is fixed to the outer wall of the circumference of the rotating shaft 53 by a pin, and a shift fork 55 is welded to the outer wall of one side of the lever 54, an extension plate 48 is slidably connected to the outer wall of the guide rod 47, and a plug plate 51 is welded to the outer wall of one side of the extension plate 48, and a card slot 50 adapted to the plug plate 51 is opened on the surface of the moving plate 12, a guide rod 52 is fixed to the outer wall of one side of the plug plate 51 by a pin, and a waist-shaped hole adapted to the outer diameter of the guide rod 52 is opened on the surface of the lever 54, and the same spring 34 is fixed between the outer wall of one side of the moving plate 12 and the inner wall of one side of the box door 2 by a pin; In order to prevent the movable plate 12 from being unable to move laterally due to insufficient force applied when the switch toggle piece 20 is turned, a spring 34 is provided between the movable plate 12 and the box door 2. In the initial stage, that is, when the spring 34 is in a normal state, the movable plate 12 slides outward along the slide seat 9 through the slide plate 21. During this process, the spring 34 is gradually in a stretched state. When the slot 50 moves to a position directly opposite to the bottom of the plug plate 51, the lever 54 is rotated so that the lever 54 drives the plug plate 51 to move downward and insert into the slot 50 through the waist-shaped hole on its surface, thereby adjusting the position of the movable plate 12 at this time. The limit position is set so that the spring 34 is in a stretched state. When a circuit fault occurs, the switch toggle piece 20 will rotate downward along the air switch 4 to automatically pop open. The switch toggle piece 20 toggles the fork 55 during the pop-up process. The lever principle is used to make the end of the lever 54 away from the fork 55 can be tilted up with less effort, so that the plug plate 51 automatically disengages from the slot 50. At this time, the rebound force of the spring 34 is used to quickly reset the moving plate 12. After the moving plate 12 is reset, the rotating roller 25 and the U-shaped frame 26 move downward through the convex hole 19 under the action of their own gravity.

[0031] The above is a preferred specific embodiment of the present invention, but it is not the only specific embodiment of the present invention. Any modification, equivalent substitution and improvement made by any technician familiar with the field within the technical scope disclosed by the present invention in combination with the existing technology or public common sense within the spirit and principle of the present invention should be covered by the protection scope of the present invention.

Claims

1. A locking device for preventing misoperation of an electric power system, comprising a locking part and an unlocking part for protecting the main body of the electric power system, characterized in that: The power system body comprises an installation box (1) and a box door (2), wherein the box door (2) is connected to an outer wall of one side of the installation box (1) via a hinge, a locking plate (6) is welded to an inner wall at the bottom of the installation box (1), and a locking hole (5) is provided on the surface of the locking plate (6), a locking plate (16) is welded to an outer wall of one side of the box door (2), and a locking hole (45) is provided on the surface of the locking plate (16), and the power system body further comprises an air switch (4) and a switch toggle plate (20), wherein the air switch (4) is fixed to an inner wall of one side of the installation box (1), and the switch toggle plate (20) is movably connected to the surface of the air switch (4); The locking portion comprises a limit rod (7) and a horizontal plate (8), wherein the horizontal plate (8) is fixed to an inner wall of one side of the box door (2), the limit rod (7) is movably connected to the inner wall of a through hole opened on the surface of the horizontal plate (8), and a U-shaped frame (26) is welded to the bottom of the limit rod (7), and the inner walls on both sides of the U-shaped frame (26) are movably connected to rotating rollers (25), and a square plate (35) is welded to the inner wall of one side of the box door (2), and the inner wall of the through hole opened on the surface of the square plate (35) is movably connected to a vertical rod (27), and one end of the vertical rod (27) is connected to the inner wall of the through hole. A pin is fixed to the outer wall of one side of the U-shaped frame (26), and an adjustment frame 1 (28) is welded to the outer wall of the other side of the vertical rod (27). A vertical plate (36) is welded to the inner wall of one side of the box door (2), and a rotating disk (32) is movably connected to the inner wall of a through hole opened on the surface of the vertical plate (36), and a same swing arm 2 (46) is movably connected between the outer wall of one side of the rotating disk (32) and the inner wall of the adjustment frame 1 (28), and a pin connection component for locking the lock hole 1 (5) and the lock hole 4 (45) is movably connected to the outer wall of one side of the rotating disk (32).

2. A locking device for preventing misoperation of an electric power system according to claim 1, characterized in that: A slide seat (9) is welded to the inner wall of one side of the installation box (1), a slide plate (21) is movably connected to the inner wall of the slide seat (9), and a same movable plate (12) is welded between the two slide plates (21), and a convex hole (19) is opened on the surface of the movable plate (12), and an arc block (13) adapted to the switch toggle plate (20) is integrally formed on the outer wall of one side of the movable plate (12).

3. A locking device for preventing misoperation of a power system according to claim 2, characterized in that: The pin-connecting assembly comprises a guide plate (10) and a transverse column (22), wherein the guide plate (10) is fixed to an inner wall of one side of the door (2), and the transverse column (22) is movably connected to the inner wall of a through hole opened on the surface of the guide plate (10), and a locking block (30) adapted to the inner diameter of the first locking hole (5) and the fourth locking hole (45) is fixed to one end of the transverse column (22) by a pin.

4. A locking device for preventing misoperation of an electric power system according to claim 3, characterized in that: The other end of the transverse column (22) is welded with an adjustment frame 2 (31), and the inner wall of the adjustment frame 2 (31) and the outer wall of one side of the rotating disk (32) are movably connected with the same swing arm 1 (23).

5. A locking device for preventing misoperation of a power system according to claim 4, characterized in that: A contact (24) is fixed to an outer wall of one side of the adjustment frame (28), an alarm (18) is fixed to an inner wall of one side of the box door (2), and a contact point (11) adapted to the contact (24) is provided at one end of the alarm (18).

6. A locking device for preventing misoperation of a power system according to claim 5, characterized in that: The unlocking portion comprises an unlocking column (3) and a driving plate (40), wherein the driving plate (40) is integrally formed at the end of the unlocking column (3), an unlocking plate (17) is welded to the inner wall of one side of the door (2), and the inner diameter of the unlocking plate (17) is matched with the unlocking column (3) and the driving plate (40), and a rotating groove (33) matched with the inner diameter of the unlocking plate (17) is formed on the surface of the rotating disk (32).

7. A locking device for preventing misoperation of a power system according to claim 6, characterized in that: The outer wall of the guide plate (10) is movably connected to a locking plate (15), and a locking pin 1 (42) and a locking pin 2 (43) are integrally formed on the outer wall of one side of the locking plate (15).

8. A locking device for preventing misoperation of a power system according to claim 7, characterized in that: The surface of the second locking plate (16) is provided with a third locking hole (44) adapted to fit the second locking pin (43), and the surface of the first locking plate (6) is provided with a second locking hole (41) adapted to fit the first locking pin (42).

9. A locking device for preventing misoperation of a power system according to claim 8, characterized in that: A through hole formed on the surface of the locking plate (15) is movably connected to a lever (38), and a rotating plate (39) adapted to the rotating groove (33) is welded to one end of the lever (38), and a protrusion (37) is fixed to the other end of the lever (38) via a pin. A bent rod (29) is fixed to the outer wall of one side of the adjustment frame (28) via a pin, and an extrusion block (14) is welded to one end of the bent rod (29).

10. A locking device for preventing misoperation of an electric power system according to claim 9, characterized in that A guide rod (47) and a support plate (49) are welded to the top outer wall of the slide seat (9); a rotating shaft (53) is rotatably connected to the inner wall of a through hole provided on the surface of the drive plate (40); a lever (54) is fixed to the circumferential outer wall of the rotating shaft (53) by a pin; and a shift fork (55) is welded to the outer wall of one side of the lever (54); an extension plate (48) is slidably connected to the outer wall of the guide rod (47); and a plug plate (51) is welded to the outer wall of one side of the extension plate (48); a slot (50) adapted to the plug plate (51) is provided on the surface of the moving plate (12); a guide rod (52) is fixed to the outer wall of one side of the plug plate (51) by a pin; and a waist-shaped hole adapted to the outer diameter of the guide rod (52) is provided on the surface of the lever (54); and a spring (34) is fixed between the outer wall of one side of the moving plate (12) and the inner wall of one side of the box door (2) by a pin.

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