Microcomputer anti-misoperation device for electrical equipment

By incorporating an anti-misoperation lock, lifting platform, and rotating mechanism into a coordinated design on the anti-misoperation door, the problem of the microcomputer-based anti-misoperation interlocking device being easily forgotten to be closed is solved, ensuring safe and reliable operation of the anti-misoperation door and reducing the risk of accidental activation and forgetting to close it.

CN223871359UActive Publication Date: 2026-02-03GUIZHOU WUJIANG HYDROPOWER DEV CO LTD WUJIANGDU POWER PLANT +1
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Patent Information

Application Number
CN202520348934.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2026-02-03
Estimated Expiration
2035-03-03

AI Technical Summary

Technical Problem

The microcomputer-based anti-misoperation interlocking devices in existing power system substations are easily forgotten to be turned off, leading to safety risks and operational inconvenience.

Method used

A microcomputer-based anti-misoperation device was designed, which includes an anti-misoperation lock, a lifting platform, and a rotating mechanism. Through the linkage of the baffle and the transmission rod, it is ensured that the anti-misoperation door can only be opened when the operation is correct, preventing accidental contact and forgetting to close it.

Benefits of technology

It effectively prevents the anti-misoperation door from being accidentally opened, reduces safety risks, ensures the personal safety of operators, and improves the convenience and reliability of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of anti-misoperation locking devices, in particular to a microcomputer anti-misoperation device for electrical equipment, which comprises an anti-misoperation lock which comprises an inner lock body and an outer lock body, the inner lock body and the outer lock body are both provided with a plurality of connecting holes, lock cylinders are fixedly connected in the inner lock body and the outer lock body, and a blocking piece is arranged at one end, close to the outer lock body, of each lock cylinder. A circular ring is arranged in the middle of the transmission rod, the outer lock body extension roller is sleeved with the circular ring, and the other end of the transmission rod is connected with a connecting rod; the lifting platform is arranged on the outer side of the anti-misoperation door and comprises a pedal and an elastic assembly connected with the pedal, and the pedal is connected with the telescopic rod; the rotating mechanism comprises a telescopic rod and a steering bearing connected with the telescopic rod and the pedal. According to the microcomputer locking anti-misoperation device, the blocking piece and the lifting table are arranged, so that when the anti-misoperation door is closed, the blocking piece and the lifting table are linked, and the safety risk caused by the fact that an operator forgets to close the microcomputer locking anti-misoperation device easily is reduced.
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Description

Technical Field

[0001] This utility model relates to the technical field of anti-misoperation interlocking devices, and in particular to a microcomputer-based anti-misoperation device for electrical equipment. Background Technology

[0002] To reduce the occurrence of human error accidents in power system substations, anti-misoperation interlocking systems are now widely used. Current anti-misoperation interlocking devices in power system substations rely on a microcomputer-controlled five-proof padlock added to the handle for operation interlocking. However, once the five-proof padlock is opened, operators may forget to relock the switch, leading to accidental activation and threatening their safety. Furthermore, after completing their work, operators may forget to relock the five-proof padlock or lock it incorrectly, causing inconvenience in future operations.

[0003] Chinese Patent Publication No. CN217690919U discloses a microcomputer-based anti-misoperation interlocking device, comprising a switch knife, a lock disposed on one side of the switch knife, and a key adapted to the lock. The lock includes a housing and a bolt locking module. The housing has an electrical connection slot and an internal sliding groove. The bolt is slidably disposed in the sliding groove and a first elastic element is disposed between it and the housing. A locking groove is opened on one side of the bolt. An electromagnet is disposed in the locking module to limit the bolt. The electromagnet is electrically connected to the electrical connection slot. The key has an electrical plug and an internal power supply. The switch knife has multiple insertion holes adapted to the bolt. This invention eliminates the possibility of the lock falling off or being misoperated. Simultaneously, the locks automatically lock the switch knife, effectively preventing accidental activation and ensuring the personal safety of personnel.

[0004] Therefore, the existing technology has the following problems: when operating the microcomputer interlocking anti-misoperation device, the operator may forget to turn it off, which leads to certain safety risks. Utility Model Content

[0005] Therefore, this utility model provides a microcomputer anti-misoperation device for electrical equipment to overcome the problem in the prior art where operators easily forget to turn off the microcomputer interlocking anti-misoperation device when operating it, resulting in certain safety risks.

[0006] To achieve the above objectives, this utility model provides a microcomputer-based anti-misoperation device for electrical equipment, comprising:

[0007] The anti-mislocking device is installed on one side of the anti-mislocking door and includes an inner lock body and an outer lock body. Both the inner and outer lock bodies are provided with multiple connection holes. A lock cylinder is fixedly connected inside both the inner and outer lock bodies. The lock cylinder is drivenly connected to the lock tongue, and a baffle is provided at one end of the lock cylinder near the outer lock body. The baffle moves through a baffle side slide set on the outer wall of the outer lock body. One end of the baffle is connected to a transmission rod. A ring is provided in the middle of the transmission rod. The ring is sleeved on the extension roller of the outer lock body. The other end of the transmission rod is connected to a connecting rod.

[0008] A lifting platform is located outside the anti-misoperation door, including a foot pedal and an elastic component connected to the foot pedal, and the foot pedal is connected to a telescopic rod;

[0009] The rotating mechanism includes a telescopic rod and a steering bearing connecting the telescopic rod and the pedal.

[0010] Furthermore, the foot pedal is horizontally positioned on the outside of the anti-misoperation door, and the height of the foot pedal is higher than the height of the bottom of the anti-misoperation door from the ground.

[0011] Furthermore, the length of the foot pedal is greater than the width of the anti-misoperation door.

[0012] Furthermore, the bottom of the anti-misoperation door is provided with a foot pedal fixing notch, the length of which matches the width of the foot pedal.

[0013] Furthermore, the connecting rod is fixed in a preset position via the inner slide rail of the anti-misoperation door.

[0014] Furthermore, the slide has a U-shaped cross-section.

[0015] Furthermore, the cross-sectional shape of the extension roller is circular on the outside and polygonal on the inside.

[0016] Furthermore, the inner lock body is provided with a fixing rod, the cross-section of which has the same shape as the inner side of the cross-section of the extension roller.

[0017] Furthermore, the fixing rod is arranged opposite to the extension roller.

[0018] Furthermore, the extension roller is disposed in the middle on the opposite side of the transmission rod.

[0019] Compared with the prior art, the beneficial effect of this utility model is that by setting a lifting plate outside the anti-misoperation door that can block the normal opening and closing of the anti-misoperation door, the situation of the anti-misoperation door being accidentally touched and opened can be effectively avoided.

[0020] Furthermore, by installing a baffle inside the anti-misoperation door, and the baffle being connected to the lifting platform via a transmission rod and a connecting rod, when the anti-misoperation door is opened, it can be linked with the lifting platform. When the lifting platform descends, the baffle rises, allowing the key to enter the lock hole to unlock, further reducing the risk of the anti-misoperation door being accidentally opened.

[0021] Furthermore, the telescopic rod and pedal connected by the rotating mechanism can provide a smooth transition when the anti-misoperation door is opened and closed, and the presence of the linkage will not prevent the anti-misoperation door from being used.

[0022] Furthermore, the telescopic rod includes a first rod body and a second rod body. The outer wall of the first rod body is provided with a semi-circular slide rail, and the inner wall of the second rod body is uniformly provided with ball bearings. When the anti-misoperation door is closing, the telescopic rod can extend and retract according to the change in distance from the connection between the telescopic rod and the connecting rod to the rotating bearing. It can also slow down the opening and closing speed of the anti-misoperation door when it is opening and closing, reducing the possibility of operators being injured due to the excessive speed of the anti-misoperation door opening and closing.

[0023] Furthermore, a baffle side slide is provided on the outer wall of the outer lock body, which can clamp the baffle in the side slide, so that the baffle moves along a preset path when it moves with the transmission rod, so as to satisfy the function of the baffle blocking the keyhole. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the microcomputer-based anti-misoperation device for electrical equipment in this embodiment;

[0025] Figure 2 This is a front view of the microcomputer-based anti-misoperation device for electrical equipment in this embodiment.

[0026] Figure 3 This is a schematic diagram of the structure of A in the microcomputer-based anti-misoperation device for electrical equipment in this embodiment;

[0027] Figure 4 This is a schematic diagram of the structure of B in the microcomputer-based anti-misoperation device for electrical equipment in this embodiment;

[0028] Figure 5 This is a schematic diagram of the structure of C in the microcomputer-based anti-misoperation device for electrical equipment in this embodiment;

[0029] Figure 6 This is a schematic diagram of the circular hole and protruding rod in the microcomputer-based anti-misoperation device for electrical equipment in this embodiment;

[0030] Figure 7 This is a schematic diagram of the connecting parts and fixing parts in the microcomputer anti-misoperation device for electrical equipment in this embodiment;

[0031] Figure 8This is a schematic diagram of the structure of the baffle and the baffle side slide in the microcomputer anti-misoperation device for electrical equipment in this embodiment.

[0032] In the diagram: 1-Inner lock body; 101-Fixing rod; 2-Outer lock body; 201-Extension roller; 3-Connecting hole; 5-Connector; 6-Fixing component; 7-Lock cylinder; 701-Keyhole; 8-Lock tongue; 9-Baffle; 901-Baffle side slide; 10-Transmission rod; 1001-Ring; 1002-Circular hole; 11-Connecting rod; Protruding rod-1101; 12-Step pedal; 13-Elastic component; 14-Anti-misoperation door; 1401-Fixing notch; 15-Telescopic rod; 151-First rod body; 1510-Circular slide; 152-Second rod body; 1520-Ball bearing; 16-Swivel bearing; 1601-Bearing rotating part; 1602-Bearing fixing part. Detailed Implementation

[0033] To make the objectives and advantages of this utility model clearer, the utility model will be further described below with reference to the embodiments; it should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0034] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0035] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0036] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Please see Figure 1 As shown, Figure 1 This is a schematic diagram of the microcomputer-based anti-misoperation device for electrical equipment in this embodiment; Figure 2This is a front view of the microcomputer-based anti-misoperation device for electrical equipment in this embodiment. Figure 3 This is a schematic diagram of the structure of A in the microcomputer-based anti-misoperation device for electrical equipment in this embodiment; Figure 4 This is a schematic diagram of the structure of B in the microcomputer-based anti-misoperation device for electrical equipment in this embodiment; Figure 5 This is a schematic diagram of the structure of C in the microcomputer-based anti-misoperation device for electrical equipment in this embodiment; Figure 6 This is a schematic diagram of the circular hole and protruding rod in the microcomputer-based anti-misoperation device for electrical equipment in this embodiment; Figure 7 This is a schematic diagram of the connecting parts and fixing parts in the microcomputer anti-misoperation device for electrical equipment in this embodiment; Figure 8 This is a schematic diagram of the structure of the baffle and the baffle side slide in the microcomputer anti-misoperation device for electrical equipment in this embodiment.

[0038] This embodiment provides a microcomputer-based anti-misoperation device for electrical equipment, comprising,

[0039] The anti-mislocking device is installed on one side of the anti-mislocking door 14 and includes an inner lock body 1 and an outer lock body 2. Both the inner lock body 1 and the outer lock body 2 are provided with multiple connecting holes 3. The connecting holes 3 are fixedly connected by connectors 5 and fasteners 6, which can tightly fix the inner lock body 1 and the outer lock body 2 to ensure the firmness of the combination of the inner lock body 1 and the outer lock body 2. The inner lock body 1 and the outer lock body 2 are both fixedly connected with lock cylinders 7. The lock cylinders 7 are drivenly connected to the lock tongue 8, and a baffle 9 is provided at the end of the lock cylinder 7 near the outer lock body 2. By providing a baffle 9 at the end near the outer lock body 2, the unlocking operation can be blocked to prevent the anti-mislocking door from being opened and causing safety hazards.

[0040] The baffle 9 moves via a baffle side slide 901 disposed on the outer wall of the outer lock body 2. The baffle side slide 901 allows the baffle 9 to slide in a preset direction, ensuring that the baffle blocks the keyhole 701 and prevents the anti-misoperation door from being accidentally opened. One end of the baffle 9 is connected to the transmission rod 10. A ring 1001 is disposed in the middle of the transmission rod, and the ring is sleeved on the outer lock body extension roller 201. The extension roller 201 is fixedly disposed on the inner wall of the outer lock body 2, and a fixing rod 101 is disposed on the inner wall. On the inner wall of the lock body 1, the extension roller 201 can be inserted into the fixing rod 101. The cross-section of the fixing rod 101 and the inner cross-section of the extension roller 201 are both triangular, and the outer cross-section of the extension roller 201 is circular. The fixing rod 101 and the extension roller 201 can be tightly connected. When the ring 1001 is looped around the extension roller 201, the inner wall of the inner lock body 1 and the inner wall of the outer lock body 2 can restrict the ring 1001 between the inner lock body 1 and the outer lock body 2, so that the ring 1001 can move around the extension roller 201.

[0041] The other end of the transmission rod 10 is connected to the connecting rod 11. Circular holes 1002 are provided on both sides of the transmission rod 10. A protruding rod 1101 is provided on one side of the connecting rod 11 connected to the transmission rod 10. The circular holes 1002 can be fixed on the protruding rod 1101. The connecting rod 11 is installed inside the anti-misoperation door 14.

[0042] The lifting platform is located outside the anti-misoperation door 14 and includes a foot pedal 12 and an elastic component 13 connected to the foot pedal. The bottom of the anti-misoperation door is provided with a fixing notch 1401. The width of the fixing notch 1401 is slightly larger than the width of the foot pedal 12. The foot pedal 12 is connected to the telescopic rod 15.

[0043] The rotating mechanism includes a telescopic rod 15 and a steering bearing 16 connecting the telescopic rod 15 and the pedal 12. The telescopic rod 15 is connected to the rotating part 1601 of the steering bearing, and the pedal is connected to the fixing part 1602 of the steering bearing. The telescopic rod includes a first rod body 151 and a second rod body 152. A semi-circular slide rail 1510 is provided on the outer wall of the first rod body, and a ball bearing 1520 is provided on the second rod body. The ball bearing 1520 is evenly distributed on the inner wall of the second rod body 152, and the ball bearing 1520 moves within the semi-circular slide rail 1510. The diameter of the second rod body 152 is larger than the diameter of the first rod body 151.

[0044] Working Principle: When opening the accident prevention door, the key cannot be used directly because the lock hole is blocked by a baffle and the lifting platform also obstructs the door. The operator needs to step on the foot pedal, making it parallel to the ground. An elastic component is connected beneath the foot pedal. When the operator stands on the foot pedal, the elastic component slowly descends to parallel with the ground under gravity. During the descent, the steering bearing connected to the foot pedal and the telescopic rod connected to the steering bearing also descend. Simultaneously, the telescopic rod drives the connecting rod downwards. Since the connecting rod is connected to one end of the transmission rod, and a ring is located in the middle of the transmission rod, when the connecting rod... As the lever descends, the transmission lever rotates around the ring. Since one end of the transmission lever is connected to the connecting rod via a protruding rod and a circular hole, the baffle connected to the other end of the transmission lever rises, exposing the lock hole. The operator can insert the key into the lock hole and, after unlocking the anti-misoperation lock, pull open the anti-misoperation door so that its projection on the lifting platform is perpendicular to the platform. At this point, the operator removes both feet from the pedal and enters the control room behind the anti-misoperation door. Under the upward elastic force of the elastic component, the pedal returns to its original position and locks at the fixed notch of the anti-misoperation door, preventing the door from closing. After completing the task in the control room, the operator presses the pedal to a position parallel to the ground to close the anti-misoperation door.

[0045] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

[0046] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A microcomputer-based anti-misoperation device for electrical equipment, characterized in that, include, The anti-mislocking device is installed on one side of the anti-mislocking door and includes an inner lock body and an outer lock body. Both the inner and outer lock bodies are provided with multiple connection holes. A lock cylinder is fixedly connected inside both the inner and outer lock bodies. The lock cylinder is drivenly connected to the lock tongue, and a baffle is provided at one end of the lock cylinder near the outer lock body. The baffle moves through a baffle side slide set on the outer wall of the outer lock body. One end of the baffle is connected to a transmission rod. A ring is provided in the middle of the transmission rod. The ring is sleeved on the extension roller of the outer lock body. The other end of the transmission rod is connected to a connecting rod. A lifting platform is located outside the anti-misoperation door, including a foot pedal and an elastic component connected to the foot pedal, and the foot pedal is connected to a telescopic rod; The rotating mechanism includes a telescopic rod and a steering bearing connecting the telescopic rod and the pedal.

2. The microcomputer-based anti-misoperation device for electrical equipment according to claim 1, characterized in that, The foot pedal is horizontally positioned on the outside of the anti-misoperation door, and its height is higher than the bottom of the anti-misoperation door from the ground.

3. The microcomputer-based anti-misoperation device for electrical equipment according to claim 2, characterized in that, The length of the foot pedal is greater than the width of the anti-misoperation door.

4. The microcomputer-based anti-misoperation device for electrical equipment according to claim 3, characterized in that, The bottom of the anti-misoperation door is provided with a foot pedal fixing notch, the length of which matches the width of the foot pedal.

5. The microcomputer-based anti-misoperation device for electrical equipment according to claim 4, characterized in that, The connecting rod is fixed in a preset position by the inner slide rail of the anti-misoperation door.

6. The microcomputer-based anti-misoperation device for electrical equipment according to claim 5, characterized in that, The slide has a U-shaped cross-section.

7. The microcomputer-based anti-misoperation device for electrical equipment according to claim 6, characterized in that, The cross-sectional shape of the extension roller is circular on the outside and polygonal on the inside.

8. The microcomputer-based anti-misoperation device for electrical equipment according to claim 7, characterized in that, The inner lock body is provided with a fixing rod, and the cross-section of the fixing rod has the same shape as the inner side of the cross-section of the extension roller.

9. The microcomputer-based anti-misoperation device for electrical equipment according to claim 8, characterized in that, The fixing rod is positioned opposite to the extension roller.

10. The microcomputer-based anti-misoperation device for electrical equipment according to claim 9, characterized in that, The extension roller is positioned in the middle on the opposite side of the transmission rod.

Citation Information

Patent Citations

  • Misoperation-preventive locking device for microcomputer

    CN217690919U