Anti-misoperation locking device for high-voltage isolating switch
By designing a high-voltage isolation switch anti-locking device including anti-locking and anti-locking keys, the risk of misclosing high-voltage isolation switches in the prior art is solved, and higher safety and operational norms are achieved.
Patent Information
- Application Number
- CN202421360804.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-06-14
AI Technical Summary
The anti-error locking device of the existing high-voltage isolation switch has problems such as errors in information transmission, operator errors and irregular operations, which leads to the high-voltage isolation switch that may be closed in advance, resulting in the risk of equipment damage or personnel injury.
A high-voltage isolation switch anti-locking device is designed, including anti-locking and anti-locking keys. The anti-error locking is used to achieve the switching of locking and unlocking states through the cooperation of the mechanical locking tongue and the plug-in slot; the anti-error locking key controls the anti-error locking into the corresponding state by receiving signals from the control center and subordinate operators.
This device ensures the safety of locking of the high-voltage isolation switch, avoids equipment damage and personnel injury caused by mis-closing, and improves the standardization and safety of operations.
Smart Images
Figure CN222775212U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of high-voltage isolating switches and relates to an anti-mislocking device for high-voltage isolating switches. Background Art
[0002] In order to prevent the high-voltage disconnector from closing by mistake, a mechanical anti-mistake locking device can be set at the handle of the disconnector. The general anti-mistake locking device is locked by a mechanical lock, and the key is kept by a dedicated person. When the high-voltage disconnector needs to be closed, the operator opens the mechanical lock, opens the mechanical anti-mistake locking device, and then closes the high-voltage disconnector.
[0003] However, there may be problems such as errors in information transmission, misunderstandings by operators, and irregular operations, which may cause the high-voltage disconnector to close prematurely, potentially posing a risk of electric shock to the next level of equipment or maintenance personnel. Utility Model Content
[0004] In order to overcome the defects in the above-mentioned related technologies, the utility model provides a high-voltage disconnector anti-mislocking device, which can ensure the locking safety and guarantee the operation standard.
[0005] In order to achieve the above technical objectives, the utility model proposes a high-voltage disconnector anti-mistake locking device. The high-voltage disconnector anti-mistake locking device comprises: an anti-mistake locking and an anti-mistake locking key. The anti-mistake locking is connected to the high-voltage disconnector, and the anti-mistake locking is configured to: when entering the locked state, control the handle of the high-voltage disconnector to be fixed; or when entering the unlocked state, the handle of the high-voltage disconnector moves under the drive of an external force. The anti-mistake locking key is configured to: receive signals from the control center and / or the subordinate operator, and control the anti-mistake locking to enter the locked state or the unlocked state.
[0006] Wherein, the anti-mistake locking includes: a lock seat and a mechanical lock. The lock seat is fixed to the bracket of the high-voltage disconnector, and at least one plug-in slot is provided on the lock seat. The mechanical lock is fixed to the operating handle of the high-voltage disconnector, and the mechanical lock also includes a lock tongue, the position of which is adapted to the plug-in slot, and the mechanical lock also includes: a locking signal terminal and an unlocking signal terminal, and the mechanical lock is configured as follows: when the locking signal terminal receives a locking signal from the anti-mistake locking key, the lock tongue is plugged into the plug-in slot, so that the anti-mistake locking enters a locked state; when the unlocking signal terminal receives an unlocking signal from the anti-mistake locking key, the lock tongue leaves the plug-in slot, so that the anti-mistake locking enters an unlocked state.
[0007] Preferably, the mechanical lock further comprises: a lock housing, an electromagnet, a permanent magnet and a reset spring. The upper end surface of the lock housing is a plane, the upper end surface of the lock housing is provided with the locking signal terminal and the unlocking signal terminal, the interior of the lock housing is a cavity structure, and the lower end surface of the lock housing is provided with a through hole communicating with the cavity. The electromagnet is fixed inside the lock housing. The permanent magnet is arranged just above the electromagnet inside the lock housing, the permanent magnet has a tendency to reciprocate in the vertical direction, the lock tongue is fixedly connected to the permanent magnet, and the lock tongue reciprocates in the vertical direction following the permanent magnet, the lock tongue has a tendency to penetrate through the through hole and be plugged into the plug-in slot or the lock tongue has a tendency to extend from the through hole into the lock housing. The reset spring is arranged in the lock housing, and the reset spring is also sleeved on the lock tongue above the permanent magnet.
[0008] Preferably, the lock base further includes a blind hole, the mechanical lock is arranged in the blind hole, and a locking output terminal is arranged on the upper end surface of the lock base outside the blind hole. The lock base further includes: a normally open switch, the normally open switch is arranged at the bottom of the plug slot, and the normally open switch and the locking output terminal are connected by a wire, and the wire is arranged inside the lock base.
[0009] Preferably, the anti-mistaken locking key further comprises: a microprocessor, an unlocking signal receiving end, an unlocking signal sending end, a locking signal sending end and a battery. The unlocking signal receiving end is arranged on the surface of the anti-mistaken locking key, the unlocking signal receiving end is electrically connected to the microprocessor, and the unlocking signal receiving end is configured to receive a signal from a control center and / or a lower-level operator. The unlocking signal sending end is arranged on the surface of the anti-mistaken locking key, the unlocking signal sending end is electrically connected to the microprocessor, and the unlocking signal sending end is configured to send an unlocking signal to the unlocking signal end. The locking signal sending end is arranged on the surface of the anti-mistaken locking key, the locking signal sending end is electrically connected to the microprocessor, and the locking signal sending end is configured to send a locking signal to the locking signal end. The battery is arranged inside the anti-mistaken locking key, the battery is configured to supply power to the microprocessor, and is electrically connected to the unlocking signal sending end and the locking signal sending end.
[0010] Preferably, the anti-mistaken locking key further comprises a charging end, and the charging end, the unlocking signal receiving end, the unlocking signal sending end and the locking signal sending end are arranged on the same plane as the anti-mistaken locking key.
[0011] The anti-mislocking key also includes a base, which includes a charging slot, and a charging interface, an unlocking signal sending interface and a locking signal receiving port are arranged on the bottom surface of the charging slot.
[0012] Preferably, the base includes a controller and an external port, and the controller is electrically connected to the unlocking signal sending interface, the locking signal receiving port and the external port.
[0013] Preferably, the unlock signal sending end includes an unlock signal sending positive end and an unlock signal sending negative end. The anti-mislocking key also includes: a photoelectric coupling switch circuit. The third pin of the photoelectric coupler of the photoelectric coupling switch circuit is electrically connected to the positive pole of the battery, the fourth pin of the photoelectric coupler is electrically connected to the unlock signal sending positive end, and the unlock signal sending negative end is electrically connected to the negative pole of the battery. The first pin of the photoelectric coupler is electrically connected to the I / O pin of the microprocessor, and the second pin of the photoelectric coupler is electrically connected to the low level end.
[0014] The beneficial effects of the utility model are:
[0015] First, the utility model adopts an anti-mistaken locking key, and by arranging the positions of the locking signal end and the unlocking signal end, the anti-mistaken locking, the base and the anti-mistaken locking key correspond to each other, thereby preventing other anti-mistaken locking keys from opening the anti-mistaken locking.
[0016] Second, the base of the utility model can send an unlocking signal to the anti-mislocking key, and the anti-mislocking key can then control the anti-mislocking to open, so as to ensure that the high-voltage disconnector is not mistakenly closed, and at the same time avoid the occurrence of injuries and other incidents caused by incorrect information transmission between personnel or irregular operations, and has extremely high safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 It is a structural diagram of the utility model;
[0019] Figure 2 This is a structural diagram of the electromagnet and the lock tongue of the utility model;
[0020] Figure 3 It is a side structural diagram of the electromagnet and the lock tongue of the utility model;
[0021] Figure 4 This is a diagram of the use status of the anti-mistaken locking key of the utility model in the anti-mistaken locking;
[0022] Figure 5 Another structural diagram of the utility model for preventing mis-locking. DETAILED DESCRIPTION
[0023] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.
[0024] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0025] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.
[0026] The utility model proposes a high-voltage disconnector anti-mistake locking device. The high-voltage disconnector anti-mistake locking device comprises: an anti-mistake locking 1 and an anti-mistake locking key 2. The anti-mistake locking 1 is connected to the high-voltage disconnector, and the anti-mistake locking 1 is configured to: when entering a locked state, control the handle of the high-voltage disconnector to be fixed; or when entering an unlocked state, the handle of the high-voltage disconnector moves under the drive of an external force. The anti-mistake locking key 2 is configured to: receive signals from a control center and / or a subordinate operator, and control the anti-mistake locking 1 to enter a locked state or an unlocked state.
[0027] The anti-mistake locking 1 includes: a lock seat 11 and a mechanical lock 12. The lock seat 11 is fixed to the bracket of the high-voltage disconnector, and at least one plug-in slot 111 is provided on the lock seat 11. The mechanical lock 12 is fixed to the operating handle of the high-voltage disconnector, and the mechanical lock 12 also includes a lock tongue 121, the position of which is adapted to the plug-in slot 111, and the mechanical lock 12 also includes: a locking signal end and an unlocking signal end, and the mechanical lock 12 is configured as follows: when the locking signal end receives a locking signal from the anti-mistake locking key 2, the lock tongue 121 is plugged into the plug-in slot 111, so that the anti-mistake locking 1 enters a locked state; when the unlocking signal end receives an unlocking signal from the anti-mistake locking key 2, the lock tongue 121 leaves the plug-in slot 111, so that the anti-mistake locking 1 enters an unlocking state.
[0028] Preferably, the mechanical lock 12 further comprises: a lock housing 122, an electromagnet 123, a permanent magnet 124 and a reset spring 125. The upper end surface of the lock housing 122 is a plane, the upper end surface of the lock housing 122 is provided with the locking signal terminal and the unlocking signal terminal, the interior of the lock housing 122 is a cavity structure, and the lower end surface of the lock housing 122 is provided with a through hole communicating with the cavity. The electromagnet 123 is fixed inside the lock housing 122. The permanent magnet 124 is arranged directly above the electromagnet 123 inside the lock housing 122, the permanent magnet 124 has a tendency to reciprocate in the vertical direction, the lock tongue 121 is fixedly connected to the permanent magnet 124, and the lock tongue 121 reciprocates in the vertical direction following the permanent magnet 124, the lock tongue 121 has a tendency to penetrate through the through hole and be plugged into the plug slot 111 or the lock tongue 121 has a tendency to extend from the through hole into the lock housing 122. The return spring 125 is disposed in the lock housing 122 , and the return spring 125 is also sleeved on the lock tongue 121 above the permanent magnet 124 .
[0029] Preferably, the lock base 11 further includes a blind hole, the mechanical lock 12 is arranged in the blind hole, and a locking output terminal is also arranged on the upper end surface of the lock base 11 outside the blind hole. The lock base 11 further includes: a normally open switch, the normally open switch is arranged at the bottom of the plug slot 111, and the normally open switch and the locking output terminal are connected by a wire, and the wire is arranged inside the lock base 11.
[0030] Preferably, the anti-mistaken locking key 2 further comprises: a microprocessor, an unlocking signal receiving end, an unlocking signal sending end, a locking signal sending end and a battery. The unlocking signal receiving end is arranged on the surface of the anti-mistaken locking key 2, the unlocking signal receiving end is electrically connected to the microprocessor, and the unlocking signal receiving end is configured to receive a signal from a control center and / or a lower-level operator. The unlocking signal sending end is arranged on the surface of the anti-mistaken locking key 2, the unlocking signal sending end is electrically connected to the microprocessor, and the unlocking signal sending end is configured to send an unlocking signal to the unlocking signal end. The locking signal sending end is arranged on the surface of the anti-mistaken locking key 2, the locking signal sending end is electrically connected to the microprocessor, and the locking signal sending end is configured to send a locking signal to the locking signal end. The battery is arranged inside the anti-mistaken locking key 2, the battery is configured to supply power to the microprocessor, and is electrically connected to the unlocking signal sending end and the locking signal sending end.
[0031] A microprocessor can be a single chip microcomputer.
[0032] Preferably, the anti-mistaken locking key 2 further comprises a charging end, and the charging end, the unlocking signal receiving end, the unlocking signal sending end and the locking signal sending end are arranged on the same plane of the anti-mistaken locking key 2 .
[0033] The anti-mistaken locking key 2 also includes a locking confirmation end, which is electrically connected to the microprocessor and is arranged on the bottom surface of the anti-mistaken locking key 2 .
[0034] The anti-mislocking key 2 also includes a base, which includes a charging slot, and a charging interface, an unlocking signal sending interface and a locking signal receiving port are arranged on the bottom surface of the charging slot.
[0035] Preferably, the base includes a controller and an external port, and the controller is electrically connected to the unlocking signal sending interface, the locking signal receiving port and the external port.
[0036] Preferably, the unlock signal sending end includes an unlock signal sending positive end and an unlock signal sending negative end. The anti-mislocking key 2 also includes: a photoelectric coupling switch circuit. The third pin of the photoelectric coupler of the photoelectric coupling switch circuit is electrically connected to the positive pole of the battery, the fourth pin of the photoelectric coupler is electrically connected to the unlock signal sending positive end, and the unlock signal sending negative end is electrically connected to the negative pole of the battery. The first pin of the photoelectric coupler is electrically connected to the I / O pin of the microprocessor, and the second pin of the photoelectric coupler is electrically connected to the low level end.
[0037] The locking signal sending end includes a locking signal sending positive end and a locking signal sending negative end. The anti-mislocking key 2 also includes: a locking switch circuit. The third pin of the locking photoelectric coupler of the locking switch circuit is electrically connected to the positive pole of the battery, the fourth pin of the locking photoelectric coupler is electrically connected to the locking signal sending positive end, and the locking signal sending negative end is electrically connected to the negative pole of the battery. The first pin of the locking photoelectric coupler is electrically connected to the I / O pin of the microprocessor, and the second pin of the locking photoelectric coupler is electrically connected to the low level end.
[0038] The positive terminal for sending the locking signal and the negative terminal for sending the unlocking signal are electrically connected to one end of the electromagnet 123 , and the negative terminal for sending the locking signal and the positive terminal for sending the unlocking signal are electrically connected to the other end of the electromagnet 123 .
[0039] The anti-mislocking 1 also includes a dust cover, which is hinged to the lock seat 11. The dust cover rotates to cover the lock seat 11 and the upper surface of the mechanical lock 12 to prevent dust from adhering to the locking signal end and the unlocking signal end to avoid poor contact.
[0040] The specific operation process of the utility model is as follows:
[0041] When the high-voltage disconnector needs to be locked, the anti-mistaken lock 1 is in a locked state. At this time, the handle is locked by the anti-mistaken lock 1 and the locking operation of the high-voltage disconnector cannot be completed. The anti-mistaken lock key 2 should be on the operator of the next level of the circuit or the control center. When the operator of the next level of the circuit or the control center determines that the high-voltage disconnector can be locked, the anti-mistaken lock key 2 is placed on the base, the base is electrically connected to the computer, and the unlocking signal sending interface of the control base sends a high-level signal to the unlocking signal receiving end of the anti-mistaken lock key 2. At this time, the microprocessor controls the photoelectric coupling switch circuit to be turned on, so that the positive end of the unlocking signal sending is a high-level signal. When the anti-mistaken lock key 2 is placed on the upper end of the mechanical lock 12, the positive end of the unlocking signal sending and the negative end of the unlocking signal sending are connected to the unlocking signal end one by one to form a closed loop, and the electromagnet 123 generates a repulsive magnetism with the permanent magnet 124, so that the lock tongue 121 withdraws from the plug-in slot 111, and the anti-mistaken lock 1 is opened, and then the locking operation of the high-voltage disconnector can be performed.
[0042] In addition, a display screen and an operation key can be provided on the anti-mistaken locking key 2. When the anti-mistaken locking 1 needs to be locked, the operation key can be used to operate so that one end of the locking signal sending end is at a high level, and the locking signal sending end is connected to the locking signal end, so that the electromagnet 123 generates magnetism that attracts the permanent magnet 124, and the electromagnet 123 drives and / or compresses the spring to drive the lock tongue 121 to be plugged into the plug-in slot 111, thereby completing the purpose of locking the anti-mistaken locking 1.
[0043] After the lock tongue 121 enters the plug-in slot 111, the normally open switch is pressed, one end of the lock output end is at a high level, and the lock output end is connected to the corresponding lock confirmation end. After the microprocessor receives the signal, it can keep the lock confirmation end at a high level, and when the anti-mislocking key 2 is inserted into the base, the signal is uploaded, so that the control center can confirm that the anti-mislocking 1 is in a locked state.
[0044] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.
[0045] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by technicians familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. The device for preventing mis-locking of high-voltage disconnector is characterized in that: include: An anti-mistake lock is connected to the high-voltage disconnector, and the anti-mistake lock is configured to: in a locked state, control the handle of the high-voltage disconnector to be fixed; or in an unlocked state, the handle of the high-voltage disconnector moves under the drive of an external force; An anti-mistaken locking key, wherein the anti-mistaken locking key is configured to: receive a signal from a control center and / or a subordinate operator to control the anti-mistaken locking key to enter a locked state or an unlocked state; Wherein, the anti-mistake locking comprises: A lock seat, the lock seat is fixed to the bracket of the high-voltage disconnector, and the lock seat is provided with at least one plug-in slot; A mechanical lock, wherein the mechanical lock is fixed to the operating handle of the high-voltage disconnector, the mechanical lock also includes a lock tongue, the position of the lock tongue is adapted to the plug-in slot, the mechanical lock also includes: a locking signal terminal and an unlocking signal terminal, the mechanical lock is configured as follows: when the locking signal terminal receives a locking signal from the anti-mistake locking key, the lock tongue is plugged into the plug-in slot, so that the anti-mistake locking enters a locked state; when the unlocking signal terminal receives an unlocking signal from the anti-mistake locking key, the lock tongue leaves the plug-in slot, so that the anti-mistake locking enters an unlocked state.
2. The anti-mistake locking device for high-voltage disconnector according to claim 1 is characterized in that: The mechanical lock also includes: A lock shell, wherein the upper end surface of the lock shell is a plane, the upper end surface of the lock shell is provided with the locking signal terminal and the unlocking signal terminal, the interior of the lock shell is a cavity structure, and the lower end surface of the lock shell is provided with a through hole communicating with the cavity; an electromagnet, the electromagnet being fixed inside the lock housing; A permanent magnet, the permanent magnet is arranged just above the electromagnet inside the lock housing, the permanent magnet has a tendency to reciprocate in the vertical direction, the lock tongue is fixedly connected to the permanent magnet, and the lock tongue reciprocates in the vertical direction following the permanent magnet, the lock tongue has a tendency to penetrate the through hole and be plugged into the plug-in slot, or the lock tongue has a tendency to extend from the through hole into the lock housing; A return spring is arranged in the lock housing, and the return spring is also sleeved on the lock tongue above the permanent magnet.
3. The anti-mistake locking device for high-voltage disconnector according to claim 1 is characterized in that: The lock seat further comprises a blind hole, the mechanical lock is arranged in the blind hole, and a locking output terminal is also arranged on the upper end surface of the lock seat outside the blind hole; The lock seat further comprises: a normally open switch, which is arranged at the bottom of the plug slot, and the normally open switch and the locking output end are connected via a wire, which is arranged inside the lock seat.
4. The anti-mistake locking device for high-voltage disconnector according to claim 1 is characterized in that: The anti-mistake locking key also includes: microprocessor; an unlocking signal receiving end, the unlocking signal receiving end being arranged on the surface of the anti-mislocking key, the unlocking signal receiving end being electrically connected to the microprocessor, and the unlocking signal receiving end being configured to receive a signal from a control center and / or a subordinate operator; An unlocking signal sending end, the unlocking signal sending end is arranged on the surface of the anti-mislocking key, the unlocking signal sending end is electrically connected to the microprocessor, and the unlocking signal sending end is configured to send an unlocking signal to the unlocking signal end; A locking signal sending end, the locking signal sending end is arranged on the surface of the anti-mislocking key, the locking signal sending end is electrically connected to the microprocessor, and the locking signal sending end is configured to send a locking signal to the locking signal end; A battery is disposed inside the anti-mislocking key, the battery is configured to supply power to the microprocessor, and is electrically connected to the unlocking signal sending end and the locking signal sending end.
5. The anti-mistake locking device for high-voltage disconnector according to claim 4 is characterized in that: The anti-mistaken locking key also includes a charging end, and the charging end, the unlocking signal receiving end, the unlocking signal sending end and the locking signal sending end are arranged on the same plane of the anti-mistaken locking key; The anti-mislocking key also includes a base, which includes a charging slot, and a charging interface, an unlocking signal sending interface and a locking signal receiving port are arranged on the bottom surface of the charging slot.
6. The anti-mistake locking device for high-voltage disconnector according to claim 5 is characterized in that: The base includes a controller and an external port, and the controller is electrically connected to the unlocking signal sending interface, the locking signal receiving port and the external port.
7. The anti-mistake locking device for high-voltage disconnector according to claim 1 is characterized in that: The unlock signal sending end includes an unlock signal sending positive end and an unlock signal sending negative end. The anti-mislocking key also includes: a photoelectric coupling switch circuit, The third pin of the photoelectric coupler of the photoelectric coupling switch circuit is electrically connected to the positive electrode of the battery, the fourth pin of the photoelectric coupler is electrically connected to the positive terminal for sending the unlocking signal, and the negative terminal for sending the unlocking signal is electrically connected to the negative electrode of the battery; The first pin of the photoelectric coupler is electrically connected to the I / O pin of the microprocessor, and the second pin of the photoelectric coupler is electrically connected to the low level end.