Misoperation-preventive locking device for microcomputer

Abstract

The utility model relates to a microcomputer anti-misoperation locking device, which comprises a switch blade, a lockset and a key matched with the lockset, the lockset is used for locking the switch blade, the lockset comprises a fixing plate arranged on one side of the switch blade, one end of the fixing plate is hinged with a clamping rod, a tension spring is arranged in the clamping rod, and the other end of the fixing plate is hinged with a handle. A retaining ring is arranged on the outer surface of the switch blade, a limiting rod is fixedly connected to one end of the clamping rod, a magnet is fixedly connected to the top of the limiting rod, an electromagnet is arranged at the top of the magnet, a protective shell is arranged on one side of the switch blade, and the electromagnet is fixedly connected to the interior of the protective shell. According to the microcomputer anti-misoperation locking device, the switch blade is locked through the lockset, misoperation is effectively prevented, mechanical and electromagnetic technologies are combined in the design of the lockset, the reliability and stability of locking are ensured, and meanwhile the possibility that the switch blade is touched by mistake is improved by further locking the lockset through a key.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-misoperation interlocking devices, specifically a microcomputer-based anti-misoperation interlocking device. Background Technology

[0002] In power systems, the operational safety of circuit breakers is paramount. Misoperation of circuit breakers can lead to serious equipment damage, grid failures, and even personal injury or death. Traditional measures to prevent misoperation rely primarily on operator experience and procedures, but human error can still occur. With the continuous development of power technology, the requirements for the safety and reliability of equipment operation are becoming increasingly stringent.

[0003] Current anti-misoperation interlocking devices in power system substations, such as interlocking devices for switch blades, rely on adding a microcomputer-controlled five-proof padlock to the handle for operation interlocking. After the padlock is opened, operators easily forget to relock the switch blade, making it susceptible to accidental activation and threatening their personal safety. Furthermore, after completing their work, operators often forget to relock the padlock or relock it incorrectly, causing inconvenience in future operations. Therefore, a microcomputer-controlled anti-misoperation interlocking device is proposed to solve these problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a microcomputer-based anti-misoperation interlocking device, which has the advantages of high security and strong practicality, and solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a microcomputer-based anti-misoperation interlocking device, comprising a switch knife, a lock, and a key matching the lock, wherein the lock is used to lock the switch knife.

[0006] Furthermore, the lock includes a fixing plate disposed on one side of the switch knife, a locking rod is hinged to one end of the fixing plate, a tension spring is disposed inside the locking rod, a buckle is disposed on the outer surface of the switch knife, a limit rod is fixedly connected to one end of the locking rod, a magnet is fixedly connected to the top of the limit rod, and an electromagnet is disposed on the top of the magnet.

[0007] Furthermore, a protective shell is provided on one side of the switch knife, and the electromagnet is fixedly connected inside the protective shell.

[0008] Furthermore, the fixing plate, tension spring, locking rod, buckle, limiting rod, and magnet are all located inside the protective shell.

[0009] Furthermore, the protective shell has a limiting groove inside that is adapted to the movement direction of the limiting rod, and the limiting rod is slidably connected inside the limiting groove.

[0010] Furthermore, one end of the tension spring is connected to the fixed plate.

[0011] Furthermore, there are two buckles, the cross-sectional shape of the buckle and the connecting rod is circular, and the connecting rod and the buckle are provided with an arc shape that matches the shape of the rod. The top of the rod is an inclined surface.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] This microcomputer-based anti-misoperation interlocking device locks the switch knife with a lock, effectively preventing accidental operation. The lock design combines mechanical and electromagnetic technologies to ensure the reliability and stability of the locking. At the same time, the key further locks the lock, increasing the possibility of the switch knife being accidentally activated. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram from another perspective of the present invention;

[0016] Figure 3 This is a schematic diagram of the lock structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the lock structure of this utility model.

[0018] In the diagram: 1. Switch knife, 2. Lock, 201. Protective shell, 202. Fixing plate, 203. Tension spring, 204. Locking rod, 205. Buckle, 206. Limiting rod, 207. Magnet, 208. Electromagnet, 3. Key. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 The microcomputer-based anti-misoperation interlocking device in this embodiment includes a switch knife 1, a lock 2, and a key 3 that matches the lock 2. The lock 2 is used to lock the switch knife 1.

[0021] The lock 2 includes a fixing plate 202 disposed on one side of the switch knife 1. A locking rod 204 is hinged to one end of the fixing plate 202. A tension spring 203 is disposed inside the locking rod 204. One end of the tension spring 203 is connected to the fixing plate 202. A buckle 205 is disposed on the outer surface of the switch knife 1. A limit rod 206 is fixedly connected to one end of the locking rod 204. A magnet 207 is fixedly connected to the top of the limit rod 206. An electromagnet 208 is disposed on the top of the magnet 207.

[0022] Secondly, a protective housing 201 is provided on one side of the switch knife 1. The electromagnet 208 is fixedly connected inside the protective housing 201. The fixing plate 202, tension spring 203, locking rod 204, buckle 205, limit rod 206, and magnet 207 are all located inside the protective housing 201. Key components (such as the fixing plate 202, tension spring 203, locking rod 204, buckle 205, limit rod 206, magnet 207, and electromagnet 208) are all located inside the protective housing 201, effectively protecting these components from damage by the external environment, extending the service life of the device, and facilitating maintenance and repair.

[0023] Additionally, the protective shell 201 has a limiting groove inside that is adapted to the movement direction of the limiting rod 206, and the limiting rod 201 is slidably connected inside the limiting groove. The limiting groove can limit the movement range of the limiting rod 201, and at the same time, it can make the movement of the locking rod 204 more stable.

[0024] Furthermore, there are two retaining rings 205, which correspond precisely to the open and closed positions of the switch 1. The cross-sectional shape of the connection between the retaining ring 205 and the lever 204 is circular, and the connection between the lever 204 and the retaining ring 205 has an arc shape that matches the shape of the lever 204. The top of the lever 204 is inclined. By setting the top surface of the lever 204 as an inclined surface, when the retaining ring 205 presses the lever 204 downward, it can drive the tension spring 203 to stretch. When the lever 204 rotates to a certain angle, the arc groove inside the lever 204 can fasten and lock the retaining ring 205. When it is necessary to release the switch 1, the key 3 is inserted into the lock 2, and the lock 2 turns the electromagnet 208 on and off. The electromagnet 208 can then attract the magnet 207, thereby releasing the lever 204 from the retaining ring 205.

[0025] An electromagnet is a key component in locks, responsible for controlling the locking and unlocking of the lock. The state of the electromagnet (energized or de-energized) is controlled by a key through specific signals.

[0026] When the key receives the operation command from the anti-misoperation host, it sends a corresponding signal to the electromagnet. If the signal matches the locking logic of the lock, the electromagnet will be energized or de-energized, thereby unlocking or locking the lock.

[0027] In practice, the operator inserts the key into the lock. The key reads the code or electrical contact status inside the lock and compares it with its stored operating program.

[0028] If the comparison is correct, the key will send an unlock signal to the electromagnet. Upon receiving the signal, the electromagnet will change its state (e.g., become energized), thereby unlocking the lock.

[0029] Operators can now operate the equipment. After the operation is completed, the key will send a locking signal to the electromagnet again, causing the lock to re-lock.

[0030] Programming or other electronic control technologies between key locks and electromagnets are existing technologies and will not be elaborated upon.

[0031] The working principle of the above embodiments is as follows:

[0032] (1) The microcomputer anti-misoperation interlocking device locks the switch knife 1 through the lock 2, which effectively prevents the occurrence of misoperation. The design of the lock 2 combines mechanical and electromagnetic technology to ensure the reliability and stability of the locking. At the same time, the key 3 further locks the lock, which increases the possibility of the switch knife 1 being accidentally touched.

[0033] (2) In this microcomputer-based anti-misoperation interlocking device, rotating the switch 1 causes the retaining ring 205 to press down on the locking rod 204. The locking rod 204, under pressure, causes the tension spring 203 to stretch. When the locking rod 204 rotates to a certain angle, the arc groove inside the locking rod 204 can lock the retaining ring 205. When it is necessary to release the restriction of the switch 1, the key 3 is inserted into the lock 2, and the electromagnet 208 is switched on and off through the lock 2. The electromagnet 208 can attract the magnet 207, thereby releasing the restriction of the locking rod 204 on the retaining ring 205.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A microcomputer error-proof locking device comprising a switch blade (1), a lock (2) and a key (3) matched with the lock (2), characterized in that: The lock (2) is used for locking the switch blade (1); The lock (2) comprises a fixed plate (202) arranged on one side of the switch blade (1), one end of the fixed plate (202) is hingedly connected with a clamping rod (204), the clamping rod (204) is internally provided with a tension spring (203), the switch blade (1) is externally provided with a buckle ring (205), one end of the clamping rod (204) is fixedly connected with a limiting rod (206), the limiting rod (206) is fixedly connected with a magnet (207) at the top, and the magnet (207) is provided with an electromagnet (208) at the top.

2. The microcomputer error-proofing locking device according to claim 1, wherein: One side of the switch blade (1) is provided with a protective shell (201), and the electromagnet (208) is fixedly connected in the protective shell (201).

3. The microcomputer error-proofing locking device according to claim 2, wherein: The fixed plate (202), the tension spring (203), the clamping rod (204), the buckle ring (205), the limiting rod (206) and the magnet (207) are all located in the protective shell (201).

4. The microcomputer error-proofing locking device according to claim 2, wherein: A limiting groove is formed in the protective shell (201) and is adapted to the movement direction of the limiting rod (206), and the limiting rod (206) is limitedly and slidably connected in the limiting groove.

5. The microcomputer error-proofing locking device of claim 1, wherein: One end of the tension spring (203) is connected with the fixed plate (202).

6. The microcomputer error-proofing locking device of claim 1, wherein: The number of the buckle rings (205) is two, the cross section shape of the connecting part of the buckle ring (205) and the clamping rod (204) is circular, an arc shape is formed at the connecting part of the clamping rod (204) and the buckle ring (205) and is adapted to the shape of the clamping rod (204), and the top of the clamping rod (204) is an inclined surface.

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