Anti-misoperation locking device of control switch of high-voltage switch cabinet

Abstract

The utility model belongs to the field of high-voltage switch cabinets, and relates to an anti-misoperation locking device of a control switch of a high-voltage switch cabinet. And the safety is high, and the possibility of misoperation of operators is avoided. The technical scheme comprises a gear ring, a sliding seat and a clamping plate. The gear ring comprises an inner gear, the inner gear is fixed on the high-voltage switch cabinet, and the circle center of the inner gear coincides with the rotation center of the corresponding control switch. The sliding seat is arranged on the gear ring, the sliding seat comprises a sliding rail and clamping teeth, the sliding rail is movably arranged on the gear ring, the clamping teeth are arranged in the sliding rail, the clamping teeth comprise a plurality of teeth of an outer gear matched with the inner gear, and after the clamping teeth are meshed with the inner gear, the clamping teeth are meshed with the outer gear. And the sliding rail and the gear ring are relatively fixed. The structure of one end of the clamping plate is matched with a handle piece of the control switch, and the other end of the clamping plate is hinged to the sliding rail.

Description

Technical Field

[0001] The utility model belongs to the field of high-voltage switch cabinets and relates to an anti-mistake locking device for a control switch of the high-voltage switch cabinet. Background Art

[0002] When the power plant operation staff operates the high-voltage switch on-site to open and close the power plant, since the staff are performing electrical operations on-site, if electrical misoperation occurs, the staff will be directly burned by arcs and electric shocks, which will endanger their lives in serious cases. In addition, the operation mode of opening and closing the high-voltage switch on-site has extremely high requirements for work safety and many safety precautions, the purpose of which is to 100% prevent electrical misoperation incidents.

[0003] In current technology, operators strictly implement the electrical operation ticket and work ticket system, which greatly ensures the safety of high-voltage electrical operations. However, there are operating errors caused by operator carelessness. Due to the lack of physical anti-error isolation devices, the safety hazard of casualties caused by electrical misoperation is very high. Utility Model Content

[0004] In order to overcome the defects in the above-mentioned related technologies, the utility model provides an anti-misoperation locking device for a control switch of a high-voltage switch cabinet, which has high safety and avoids the possibility of operator misoperation.

[0005] In order to achieve the above technical objectives, the utility model proposes an anti-mistake locking device for a control switch of a high-voltage switch cabinet. The anti-mistake locking device for the control switch of the high-voltage switch cabinet includes: a gear ring, a slide seat and a card plate. The gear ring includes an internal gear, which is fixed on the high-voltage switch cabinet, and the center of the circle of the internal gear coincides with the rotation center of the corresponding control switch. The slide seat is arranged on the gear ring, and the slide seat includes: a slide rail and a latch tooth. The slide rail is movably arranged on the gear ring, and a latch tooth is arranged in the slide rail. The latch tooth includes a plurality of teeth of an external gear adapted to the internal gear. When the latch tooth is engaged with the internal gear, the slide rail and the gear ring remain relatively fixed. The structure of one end of the card plate is adapted to the handle of the control switch, and the other end of the card plate is hinged to the slide rail.

[0006] Preferably, the slide seat further includes a locking ear, which is a plate and is provided with a through hole, and the locking ear is fixed to the slide rail. The card plate is provided with a locking hole, which is a through hole provided on the card plate, and the position and structure of the locking hole are adapted to the locking ear, and when one end of the card plate is buckled with the handle of the control switch, the locking ear passes through the locking hole.

[0007] Preferably, the gear ring further comprises a track, the track is an arc-shaped structure having a common center point with the inner gear, and the track is fixedly connected to the inner gear. The structure of the slide rail is adapted to the track, and the slide rail is movably arranged on the track.

[0008] Preferably, the slide seat further comprises: a housing, a pull rod and a reset spring. The housing is fixedly connected to the slide rail, a pull rod through hole is provided on the upper end surface of the housing, and a latching tooth is movably provided in the housing. The pull rod passes through the pull rod through hole and is fixedly connected to the latching tooth, and the pull rod is configured such that when the latching tooth is lifted, the latching tooth is separated from the internal gear, and when the latching tooth is lowered, the latching tooth is meshed with the internal gear. The reset spring is provided in the housing above the latching tooth, and the reset spring is sleeved on the pull rod.

[0009] Preferably, the pull rod through hole is arranged on the outer shell between the hinge position of the clamping plate and the slide rail and the inner wall of the gear ring.

[0010] Preferably, the gear ring is a fan ring structure, and the internal gear and the track are fan ring structures with the same center point and the same center angle.

[0011] The beneficial effects of the utility model are:

[0012] The utility model adopts a card plate and a slide seat, and cooperates with an electronic lock to complete the screwing control of the control switch, that is, the control switch can be opened or closed only after the corresponding electronic lock is opened, which can avoid the operator's operating error of the control switch and has a high safety factor.

[0013] The utility model adopts a gear ring, and can adjust the angle of the clamping plate according to the position of the handle of the control switch, so as to ensure that the handle of the control switch can be locked at different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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.

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a state diagram of the card board of the utility model when it is opened;

[0017] Figure 3 It is a cross-sectional view of the slide seat of the utility model;

[0018] Figure 4 It is a horizontal cross-sectional view of the slide seat of the utility model. DETAILED DESCRIPTION

[0019] 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.

[0020] 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.

[0021] 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.

[0022] like Figures 1 to 4 As shown, the utility model proposes an anti-mistake locking device for a control switch of a high-voltage switch cabinet. The anti-mistake locking device for the control switch of the high-voltage switch cabinet comprises: a gear ring 1, a slide 2 and a card plate 3. The gear ring 1 comprises an internal gear 11, the internal gear 11 is fixed on the high-voltage switch cabinet, and the center of the circle of the internal gear 11 coincides with the rotation center of the corresponding control switch. The slide 2 is arranged on the gear ring 1, and the slide 2 comprises: a slide rail 21 and a latch 22. The slide rail 21 is movably arranged on the gear ring 1, and the latch 22 is arranged in the slide rail 21. The latch 22 comprises a plurality of teeth of an external gear adapted to the internal gear 11. When the latch 22 is meshed with the internal gear 11, the slide rail 21 and the gear ring 1 remain relatively fixed. The structure of one end of the card plate 3 is adapted to the handle 4 of the control switch, and the other end of the card plate 3 is hinged to the slide rail 21.

[0023] In some embodiments, the control switch is generally a rotary switch, and the handle of the control switch is a plate or rod perpendicular to the switch body. The clamping plate 3 is a plate as a whole, and one end of the clamping plate 3 can be an open groove adapted to the handle. The width of the open groove is adapted to the width of the handle, that is, the handle cannot be rotated by the operator after being set in the open groove.

[0024] The slide seat 2 further includes a locking ear 23, which is a plate and is provided with a through hole, and the locking ear 23 is fixed to the slide rail 21. The card plate 3 is provided with a locking hole, which is a through hole provided on the card plate 3, and the position and structure of the locking hole are adapted to the locking ear 23. When one end of the card plate 3 is buckled with the handle 4 of the control switch, the locking ear 23 passes through the locking hole.

[0025] In some embodiments, the gear ring 1 further comprises a track 12, the track 12 is an arc-shaped structure having a common center point with the inner gear 11, and the track 12 is fixedly connected to the inner gear 11. The structure of the slide rail 21 is adapted to the track 12, and the slide rail 21 is movably arranged on the track 12.

[0026] The track can be a dovetail track or a guide rail with two inward recesses on both sides. The slide rail 21 is arranged on the dovetail track or the guide rail with two inward recesses on both sides to prevent the slide rail 21 from falling off the track.

[0027] The slide seat 2 further includes: a housing 26, a pull rod 24 and a return spring 25. The housing 26 is fixedly connected to the slide rail 21, and a through hole for the pull rod 24 is provided on the upper end surface of the housing 26. A latching tooth 22 is movably provided in the housing 26. The pull rod 24 passes through the through hole of the pull rod 24 and is fixedly connected to the latching tooth 22. The pull rod 24 is configured such that when the latching tooth 22 is lifted, the latching tooth 22 is separated from the inner gear 11, and when the latching tooth 22 is lowered, the latching tooth 22 is meshed with the inner gear 11. The return spring 25 is provided in the housing 26 above the latching tooth 22, and the return spring 25 is sleeved on the pull rod 24.

[0028] The through hole of the pull rod 24 is arranged on the outer shell 26 between the hinged position of the clamping plate 3 and the slide rail 21 and the inner wall of the gear ring 1 .

[0029] The gear ring 1 is a fan ring structure, and the inner gear 11 and the track are fan ring structures with the same center point and the same center angle.

[0030] The specific use method of the utility model is as follows:

[0031] According to the position of the handle of the control switch, for example, the control switch can have a closing position, an opening position and a test position. When the control switch is in different states, the handle corresponds to different rotation angles.

[0032] The operator can lift the pull rod 24 to separate the latching teeth 22 from the gear ring 1, and then push the slide 2 to move along the track to the corresponding position, loosen the pull rod 24, and the latching teeth 22 are pushed toward the inner gear 11 under the action of the reset spring 25, and the meshing is completed. At this time, the slide 2 is fixed to the inner gear 11, and then the clamping plate 3 is rotated toward the handle and one end of the clamping plate 3 is clamped with the handle of the control switch. At the same time, the lock ear 23 passes through the lock hole, and an electronic lock is set in the through hole of the lock ear 23 to prevent others from opening it.

[0033] When it is necessary to turn the corresponding control switch, the operator can obtain the corresponding key from the control center. After unlocking, the operator can operate in the above manner to avoid operating the wrong control switch. At the same time, it can prevent other unrelated personnel from operating the control switch and avoid electrical accidents.

[0034] 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.

[0035] 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. An anti-mistake locking device for a control switch of a high-voltage switch cabinet, characterized in that: include: A gear ring, the gear ring comprising an internal gear, the internal gear being fixed to the high-voltage switch cabinet, and the center of the internal gear coinciding with the rotation center of the corresponding control switch; A slide seat, the slide seat is arranged on the gear ring, the slide seat comprises: a slide rail and a latching tooth, the slide rail is movably arranged on the gear ring, the latching tooth is arranged inside the slide rail, the latching tooth comprises a plurality of teeth of an external gear adapted to the internal gear, when the latching tooth is meshed with the internal gear, the slide rail and the gear ring remain relatively fixed; A card plate, one end of which is structured to be compatible with the handle of the control switch, and the other end of which is hinged to the slide rail.

2. The anti-mistake locking device of the control switch of the high-voltage switch cabinet according to claim 1 is characterized in that: The slide seat also includes a locking ear, which is a plate and has a through hole, and the locking ear is fixed on the slide rail; The card plate is provided with a lock hole, which is a through hole provided on the card plate. The position and structure of the lock hole are adapted to the lock ear. When one end of the card plate is buckled with the handle of the control switch, the lock ear passes through the lock hole.

3. The anti-mistake locking device of the control switch of the high-voltage switch cabinet according to claim 2 is characterized in that: The gear ring further comprises a track, which is an arc-shaped structure having a common center point with the inner gear, and the track is fixedly connected to the inner gear; The structure of the slide rail is adapted to the track, and the slide rail is movably arranged on the track.

4. The anti-mistake locking device of the control switch of the high-voltage switch cabinet according to claim 3 is characterized in that: The slide also includes: A shell, the shell is fixedly connected to the slide rail, a pull rod through hole is provided on the upper end surface of the shell, and a latching tooth is movably provided inside the shell; A pull rod, the pull rod passes through the pull rod through hole and is fixedly connected to the latching tooth, the pull rod being configured such that: when the latching tooth is lifted, the latching tooth is separated from the internal gear, and when the latching tooth is lowered, the latching tooth is meshed with the internal gear; A return spring is arranged in a housing above the latching teeth, and the return spring is sleeved on the pull rod.

5. The anti-mistake locking device of the control switch of the high-voltage switch cabinet according to claim 4 is characterized in that: The pull rod through hole is arranged on the outer shell between the hinged position of the clamping plate and the slide rail and the inner wall of the gear ring.

6. The anti-mistake locking device of the control switch of the high-voltage switch cabinet according to claim 5 is characterized in that: The gear ring is a fan ring structure, and the inner gear and the track are fan ring structures with the same center point and the same center angle.

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