400V air switch anti-misoperation device

Abstract

The utility model relates to the technical field of switches, in particular to a 400V air switch anti-misoperation device. According to the technical scheme, the switch comprises a switch body and a switch handle arranged on the switch body, and further comprises a supporting rotating rod rotationally connected to the switch body, and the supporting rotating rod is provided with a double-sided dual-purpose signboard for preventing the switch body from being closed by mistake. According to the 400V air switch anti-misoperation device, the supporting rotating rod, the dual-purpose signboard, the locking latch, the pressing mechanism and other structures are matched, so that when the 400V air switch anti-misoperation device is used, the electric shock risk caused by mistakenly touching an electrified bare wire in the operation process can be reduced; the air switch can be locked during opening, and then the pressing mechanism needs to be manually started to operate closing, so that the risk of manually switching on the switch by mistake is effectively reduced; in addition, the double-sided dual-purpose signboard is provided with the first identifier and the second identifier for safety warning, so that the operation efficiency of operators in a large amount of air switch operation is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of switch technology, and in particular to a 400V air switch anti-misoperation device. Background Technology

[0002] Currently, 400V circuit breakers are widely used in various distribution boxes and control cabinets, and power outages and restorations account for a significant proportion of daily operational tasks for operators. In traditional power plants, during maintenance, circuit breakers in the same cabinet may be in inconsistent states. When operators need to open or close circuit breakers, there is a risk of entering the wrong compartment or operating normally functioning equipment. Furthermore, the close arrangement of circuit breakers during closing operations carries the risk of accidental closing. In addition, after opening circuit breakers during power outages, operators must manually install "Do Not Close, People Working!" safety warning signs, which significantly increases operation time when there are many operational tasks.

[0003] This type of 400V air switch anti-misoperation device can effectively remind operators to avoid accidentally disconnecting operating equipment during power outage operations; it realizes the mechanical interlock of the air switch opening, requiring manual cancellation of the mechanical interlock before the switch can be closed, effectively reducing the risk of accidental closing of the switch; and it realizes the linkage between opening and installation of safety warning signs, effectively improving the operating efficiency of operators in the operation of a large number of air switches. Utility Model Content

[0004] The purpose of this invention is to address the high proportion of power outages and restorations that occur during routine maintenance tasks in traditional power plants, with accidental power outages and restorations being the most common human error. This invention proposes a 400V air switch anti-misoperation device.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A 400V air switch anti-misoperation device includes a switch body and a switch handle disposed on the switch body, and further includes: a support rod rotatably connected to the switch body, the support rod being provided with a double-sided dual-purpose identification plate to prevent accidental closing of the switch body; a locking tooth fixedly connected to one side of the double-sided dual-purpose identification plate; and a pressing mechanism disposed at one end of the switch handle to lock the double-sided dual-purpose identification plate so that the switch handle cannot be closed upwards.

[0007] At least one clamping component, the pressing mechanism includes a button slidably connected to one end of a switch handle, a pair of U-shaped supports fixedly connected to one end of the button inserted into the switch handle, a pair of locking blocks slidably connected to one end of the switch handle near the button and sleeved with the U-shaped supports, and a pair of locking holes for the locking blocks to be inserted into the switch handle are provided on the locking teeth.

[0008] At least one limiting component, the pressing mechanism further includes an anti-disengagement block fixedly connected to the opposite end of the locking block, and a reset spring is fixedly provided in the middle of the anti-disengagement block.

[0009] As a further improvement of this utility model, a rotating block is fixedly connected to one end of the supporting rotating rod near the switch body, and a rotating seat for supporting the rotation of the rotating block is fixedly connected to the side surface of the switch body.

[0010] As a further improvement of this utility model, one side of the dual-purpose sign is provided with a first mark, and the other end of the dual-purpose sign is provided with a second mark corresponding to the first mark.

[0011] As a further improvement of this utility model, each of the locking blocks is provided with a ball plug at the end away from the U-shaped abutment.

[0012] As a further improvement of this utility model, the middle part of the supporting rotating rod is movably connected to the double-sided dual-purpose sign.

[0013] This utility model utilizes the combination of a supporting rotating rod, a dual-purpose identification plate, locking teeth, and a pressing mechanism to enable the 400V air switch anti-misoperation device to not only reduce the risk of electric shock caused by accidental contact with live exposed wires during operation, but also to lock the air switch when it is open, requiring manual activation of the pressing mechanism to close it, effectively reducing the risk of accidental switch closure. In addition, the dual-purpose identification plate is equipped with a first and a second identification for safety warnings, effectively improving the operational efficiency of operators when handling a large number of air switches. Attached Figure Description

[0014] Figure 1 A schematic diagram of the first state structure of a 400V air switch anti-misoperation device according to this utility model is provided.

[0015] Figure 2 A schematic diagram of the second state structure of a 400V air switch anti-misoperation device according to this utility model is provided.

[0016] Figure 3 for Figure 1 Partial structural diagram;

[0017] Figure 4 for Figure 3 A cross-sectional view of the switch handle;

[0018] Figure 5 for Figure 1 A schematic diagram of the cross-sectional structure of the rotating base;

[0019] Labeling descriptions (in order of first appearance): Switch body 1, Rotating seat 11, Support rod 12, Double-sided dual-purpose label 13, First label 14, Second label 15, Rotating block 16, Switch handle 2, Button 21, Locking insert 22, U-shaped support 23, Anti-disengagement block 24, Return spring 25, Locking tooth 3, Locking hole 31. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] like Figure 1-4 As shown, the present invention proposes a 400V air switch anti-misoperation device, including a switch body 1 and a switch handle 2 disposed on the switch body 1, and further including: a support rod 12 rotatably connected to the switch body 1, the middle part of the support rod 12 being movably connected to a double-sided dual-purpose identification plate 13, the support rod 12 being provided with a double-sided dual-purpose identification plate 13 to prevent accidental closing of the switch body 1, one side of the double-sided dual-purpose identification plate 13 being provided with a first identification plate 14, and the other end of the double-sided dual-purpose identification plate 13 being provided with a second identification plate 15 corresponding to the first identification plate 14; a locking tooth 3, fixedly connected to one side of the double-sided dual-purpose identification plate 13; and a pressing mechanism disposed at one end of the switch handle 2 to lock the double-sided dual-purpose identification plate 13 so that the switch handle 2 cannot be closed upwards.

[0022] It should be noted that the dual-sided sign 13 is a sign or indicator with a dual-sided display function, typically used to provide information, guide directions, or warn of precautions. The first sign 14 reads "Equipment in operation," while the second sign 15 reads "Do not close, people are working." Furthermore, the locking tooth 3 has a groove at one end of the proximity switch handle 2 that tightly engages with the switch handle 2.

[0023] Furthermore, the pressing mechanism includes a button 21 slidably connected to one end of the switch handle 2. One end of the button 21 inserted into the switch handle 2 is fixedly connected to a pair of U-shaped supports 23. One end of the switch handle 2 near the button 21 is slidably connected to a pair of locking blocks 22 that engage with the U-shaped supports 23. The end of the locking blocks 22 away from the U-shaped supports 23 is provided with a ball plug. The locking teeth 3 are provided with a pair of locking holes 31 that are engaged on the switch handle 2 for the locking blocks 22 to be inserted.

[0024] It should be noted that the shape of the U-shaped abutment 23 allows the anti-disengagement block 24 to drive the corresponding locking plug 22 to slide and extend on the switch handle 2 as the switch handle 2 moves back and forth. Furthermore, the ball-shaped plug at the end of the locking plug 22 allows it to be inserted into the locking hole 31 on the locking tooth 3 more smoothly and effortlessly.

[0025] The pressing mechanism also includes an anti-disengagement block 24 fixedly connected to the opposite end of the locking block 22, and a reset spring 25 is fixedly provided in the middle of the anti-disengagement block 24.

[0026] It should be noted that the anti-disengagement block 24 allows the U-shaped stop 23 to move, thereby moving the locking block 22 and, when necessary, allowing the locking block 22 to disengage from or insert into the locking hole 31. The return spring 25 ensures that the anti-disengagement block 24, which is not restrained by the U-shaped stop 23, will move the corresponding locking block 22 to insert into the corresponding locking hole 31.

[0027] Furthermore, a rotating block 16 is fixedly connected to one end of the support rod 12 near the switch body 1, and a rotating seat 11 for supporting the rotation of the rotating block 16 is fixedly connected to the side surface of the switch body 1.

[0028] It should be noted that the pair of rotating blocks 16 are the center supporting the rotation of the rotating rod 12. Furthermore, when the rotating seat 11 is rotated, the rotating blocks 16 at the end of the rotating rod 12 rotate stably.

[0029] In this embodiment, when a 400V air switch anti-misoperation device is required, such as Figure 1 As shown, when the switch body 1 is closed and energized, this device is supported by the support rod 12, and a safety warning sign with the first sign 14 is displayed on the double-sided dual-purpose sign 13 above the switch body 1, so that the first sign 14 is as shown. Figure 2 The placement is as shown, effectively reminding the operator. When the switch body 1 is opened, the second mark 15 on the double-sided dual-purpose sign 13 is made visible by flipping the support rod 12 and the double-sided dual-purpose sign 13. Figure 1As shown in the diagram, first press button 21 into the switch handle 2. Button 21 drives a pair of U-shaped abutments 23 to abut against the corresponding anti-disengagement blocks 24, causing the anti-disengagement blocks 24 to retract into the switch handle 2. Then, press the double-sided dual-purpose identification plate 13 towards the switch handle 2. The double-sided dual-purpose identification plate 13 drives the locking teeth 3 to lock the switch handle 2. Finally, release button 21. At this time, the pair of anti-disengagement blocks 24 are pushed by the elastic force of the central return spring 25, causing the anti-disengagement blocks 24 to drive the corresponding locking blocks 22 to insert into the locking holes 31 on the locking teeth 3. The switch handle 2 can no longer be closed at this time, and can only be closed by manually pressing button 21. At the same time, the second identification plate 15 displayed on the double-sided dual-purpose identification plate 13 will be displayed above the switch body 1, which not only eliminates the possibility of accidental closure of the switch body 1, but also eliminates the need for manual labeling, greatly shortening the operation time of the operators and effectively improving the operation efficiency.

[0030] The specific embodiments of the utility model have been described in detail above, but they are only examples, and the utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications or substitutions to the utility model are also within the scope of the utility model. Therefore, all equivalent transformations, modifications, and improvements made without departing from the spirit and principles of the utility model should be covered within the scope of the utility model.

Claims

1. A 400V air switch misoperation prevention device comprising a switch body and a switch handle provided on the switch body, characterized in that, Also includes: A support rod is rotatably connected to the switch body, and the support rod is provided with a double-sided dual-purpose identification plate to prevent accidental activation of the switch body; The locking teeth are fixedly connected to one side of the double-sided dual-purpose signboard; A pressing mechanism is installed at one end of the switch handle to lock the double-sided signboard, preventing the switch handle from closing upwards.

2. A misoperation prevention device for a 400V air switch according to claim 1, characterized in that, The pressing mechanism includes a button slidably connected to one end of the switch handle. One end of the button, which is inserted into the switch handle, is fixedly connected to a pair of U-shaped supports. One end of the switch handle near the button is slidably connected to a pair of locking blocks that engage with the U-shaped supports. The locking teeth have a pair of locking holes that are engaged on the switch handle for the locking blocks to be inserted.

3. A 400V air switch misoperation prevention device according to claim 2, characterized in that, The pressing mechanism also includes an anti-disengagement block fixedly connected to the opposite end of the locking block, and a reset spring is fixedly provided in the middle of the anti-disengagement block.

4. A misoperation prevention device for a 400V air switch according to claim 1, characterized in that, Each end of the support rod near the switch body is fixedly connected to a rotating block, and a rotating seat that supports the rotation of the rotating block is fixedly connected to the side surface of the switch body.

5. A misoperation prevention device for a 400V air switch according to claim 1, characterized in that, One side of the dual-purpose sign is provided with a first mark, and the other side of the dual-purpose sign is provided with a second mark corresponding to the first mark.

6. A misoperation prevention device for a 400V air switch according to claim 2, characterized in that, Each locking plug has a ball-shaped plug at the end away from the U-shaped bracket.

7. A misoperation prevention device for a 400V air switch according to claim 1, characterized in that, The middle part of the support rod is movably connected to the double-sided dual-purpose sign.

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