CN216902656U - Safety device and isolating switch - Google Patents

Abstract

A safety device and an isolating switch relate to the technical field of electrical equipment. The safety device comprises an operating piece and a locking piece arranged at one end of the operating piece; the operating parts are used for driving the locking piece to move, and the locking piece is configured in the limiting groove of the handle of the isolating switch or separated from the limiting groove, so that the handle of the isolating switch is locked or unlocked. This isolator includes operating device and foretell safety device, and operating device includes the handle, and the handle is equipped with the spacing groove, and safety device's lock piece is used for the card to locate the spacing inslot with the locking handle, or breaks away from the spacing groove with the unblock handle. The safety device can avoid the situation that the disconnecting switch is switched on due to misoperation.

Description

Safety device and isolating switch

Technical Field

The utility model relates to the technical field of electrical equipment, in particular to a safety device and an isolating switch.

Background

The strip fuse type isolating switch is also called as a strip switch, a fuse electrically connected with the strip fuse type isolating switch is added on the basis of the traditional isolating switch, and when the strip switch faces a large current, the added fuse can be rapidly disconnected to protect the isolating switch. The strip switch has the advantages of strong breaking capacity, high reliability, small size and the like, and is widely applied.

In the prior art, the strip switch is not provided with a corresponding safety mechanism, so that switching on or switching off can be easily carried out. When equipment maintenance is carried out, live working is usually prohibited, so that the strip switch needs to be opened during maintenance. However, for various reasons, such as failure to communicate information between maintenance personnel or between maintenance personnel and production personnel in a timely manner, the strip switch may be closed before maintenance is completed or even while maintenance is in progress; or the bar switch is switched on due to false touch. Therefore, serious safety accidents such as electric shock of maintenance personnel and damage of equipment are likely to happen.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a safety device and an isolating switch, which can avoid the situation that the isolating switch is switched on due to misoperation.

The embodiment of the utility model is realized by the following steps:

in one aspect of the present invention, a safety device is provided, which includes an operating member and a locking member provided at one end of the operating member; the operating parts are used for driving the locking piece to move, and the locking piece is configured in the limiting groove of the handle of the isolating switch or separated from the limiting groove, so that the handle of the isolating switch is locked or unlocked. The safety device can avoid the situation that the disconnecting switch is switched on due to misoperation.

Optionally, the locking member is a protrusion attached to a side of the operating member adjacent the handle.

Optionally, the locking member is a flange formed by bending from the operation member toward a side close to the handle.

Optionally, the operating parts is close to the one end of locking piece and is equipped with the holding chamber, and the holding intracavity is located to the locking piece, and the locking piece is close to the one end extension of handle and is provided with the extension section, and the extension section is used for card locating the spacing inslot or breaking away from the spacing groove under the drive of operating parts.

Optionally, an end of the operating member remote from the locking member is provided with a stop member for locking the operating member to limit movement of the operating member.

Optionally, the stop member is a mechanical lock for locking the operating member to the housing of the disconnector.

Optionally, the safety device further comprises an elastic member, one end of the elastic member is connected with the operation member or the locking member, the other end of the elastic member is used for being connected with the shell of the isolating switch, and the elastic member is used for providing acting force far away from the handle for the locking member.

In another aspect of the present invention, an isolating switch is provided, which includes an operating mechanism and the safety device, the operating mechanism includes a handle, the handle is provided with a limiting groove, and a locking member of the safety device is configured to be clamped in the limiting groove to lock the handle, or to be separated from the limiting groove to unlock the handle.

Optionally, the isolating switch further comprises a housing, a first guide groove is formed in the housing, and one end, far away from the operating part, of the locking piece is slidably connected into the first guide groove.

Optionally, the isolating switch further comprises a housing, a second guide groove is formed in the housing, and the operating member is slidably connected in the second guide groove.

The beneficial effects of the utility model include:

the present embodiment provides a safety device, which includes an operating element and a locking element disposed at one end of the operating element; the operating parts are used for driving the locking piece to move, and the locking piece is configured in the limiting groove of the handle of the isolating switch or separated from the limiting groove, so that the handle of the isolating switch is locked or unlocked. Therefore, in the actual operation process, when the handle of the isolating switch needs to be locked through the safety device, the operating part can be pulled, so that the operating part drives the locking part to move, the locking part is clamped in the limiting groove of the handle, the handle is locked, and the handle cannot move; when the handle of the isolating switch needs to be unlocked through the safety device, the operating part can be pushed to move reversely, so that the operating part drives the locking part to move reversely to separate from the limiting groove of the handle, the handle is unlocked, the handle is in a free state at the moment, and the isolating switch can be normally switched on and off through driving the handle. Therefore, the safety device provided by the application can realize the locking or unlocking of the handle, and further can avoid the misoperation of the handle to cause the disconnecting switch to be switched on by misoperation when the disconnecting switch is overhauled or needs to be in a switching-off state, so that the working safety of the disconnecting switch is improved to a certain extent.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of a safety device and a handle according to an embodiment of the present invention;

fig. 2 is a second schematic view illustrating a matching state of the safety device and the handle according to the embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a security device according to an embodiment of the present invention;

fig. 4 is a second schematic structural diagram of a safety device according to an embodiment of the present invention;

fig. 5 is a third schematic structural diagram of a safety device according to an embodiment of the present invention.

Icon: 10-an operating member; 11-a housing chamber; 20-a lock; 21-a bump; 22-flanging; 23-an extension; 30-an elastic member; 210-a handle; 211-a limiting groove; 220-a housing; 221-a first guide groove; 222-second guide groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and 2, the present embodiment provides a safety device, which includes an operating element 10 and a locking element 20 disposed at one end of the operating element 10; the operating element 10 is used for driving the locking member 20 to move, and the locking member 20 is configured in the limiting groove 211 of the handle 210 of the isolating switch or separated from the limiting groove 211, so that the handle 210 of the isolating switch is locked or unlocked. The safety device can avoid the situation that the disconnecting switch is switched on due to misoperation.

One end of the operating element 10 is used for driving the locking element 20 to move, the other end of the operating element is used for being held by an operator, and the operator manually pulls the operating element 10 to move, so that the locking element 20 is driven to move under the action of the operating element 10, and the locking handle 210 or the unlocking handle 210 of the locking element 20 is realized.

It should be noted that, the handle 210 of the isolating switch is provided with a corresponding limiting groove 211 corresponding to the locking member 20, and the limiting groove 211 is used for locking the handle 210 by locking the locking member 20 of the safety device, so as to prevent the handle 210 from rotating.

When isolator's handle 210 needs the locking (for example need overhaul the circuit or other needs make isolator be in the condition of separating brake state), operating personnel can forward pulling operating parts 10 motion to drive locking piece 20 forward motion through operating parts 10, and then make locking piece 20 card locate handle 210's spacing groove 211 in, thereby restriction handle 210's motion, and then realize handle 210's locking. Thus, the disconnecting switch can be prevented from being switched on due to misoperation of the handle 210; when the handle 210 of the isolating switch needs to be unlocked, an operator can reversely push the operating part 10, so that the operating part 10 drives the locking part 20 to reversely move, the locking part 20 is separated from the limiting groove 211 of the handle 210, the handle 210 is unlocked, the handle 210 can normally move at the moment, and the isolating switch can realize normal switching-off or switching-on.

It should be understood that the locking member 20 is used to lock the handle 210 by being caught in the limiting groove 211, and the shape of the locking member 20 should be adapted to the limiting groove 211. Meanwhile, the lock member 20 can unlock the handle 210 after locking the handle 210, and the lock member 20 should be disengaged from the limit groove 211 of the handle 210 by driving the operating member 10 after being caught in the limit groove 211.

In summary, the present embodiment provides a safety device, which includes an operating element 10 and a locking member 20 disposed at one end of the operating element 10; the operating element 10 is used for driving the locking member 20 to move, and the locking member 20 is configured in the limiting groove 211 of the handle 210 of the isolating switch or separated from the limiting groove 211, so that the handle 210 of the isolating switch is locked or unlocked. In the actual operation process, when the handle 210 of the disconnecting switch needs to be locked by the safety device, the operating element 10 can be pulled, so that the operating element 10 drives the locking element 20 to move, the locking element 20 is clamped in the limiting groove 211 of the handle 210, the handle 210 is further locked, and the handle 210 cannot move; when the handle 210 of the disconnecting switch needs to be unlocked through the safety device, the operating part 10 can be pushed to move reversely, so that the operating part 10 drives the locking part 20 to move reversely to be separated from the limiting groove 211 of the handle 210, the handle 210 is unlocked, the handle 210 is in a free state at the moment, and the normal opening and closing of the disconnecting switch can be realized by driving the handle 210. Therefore, the safety device provided by the application can realize the locking or unlocking of the handle 210, and further avoid the situation that the disconnecting switch is switched on due to misoperation caused by the misoperation of the handle 210 when the disconnecting switch is overhauled or needs to be in a switching-off state, so that the working safety of the disconnecting switch is improved to a certain extent.

The locking member 20 is driven by the operating member 10, wherein the locking member 20 can be connected to the operating member 10 or can be independent of the operating member 10 (for example, the locking member 20 can be moved toward the limiting groove 211 of the handle 210 or the locking member 20 can be moved toward the limiting groove 211 far away from the handle 210 by moving the operating member 10).

In one embodiment, the locking member 20 is attached to the operating member 10. For example, referring to fig. 3, the locking member 20 may be a protrusion 21 connected to a side of the operation member 10 adjacent to the handle 210. Like this, when the operating part 10 moves towards the spacing groove 211 direction of handle 210, can drive protruding 21 card and locate the spacing inslot 211 to the rotation of restriction handle 210, at this moment, handle 210 will be unable to realize the switching-over, and then unable switching-on operation.

It should be noted that the protrusion 21 may be mechanically connected to the operation element 10, or may be integrally formed with the operation element 10, and the embodiment is not limited thereto.

In addition, when the locking member 20 is connected to the operating member 10, for example, referring to fig. 4, the locking member 20 may be a flange 22 formed by bending from the operating member 10 toward a side close to the handle 210. Thus, the operating member 10 is driven in a movement, which is followed by the flange 22. When the handle 210 needs to be locked, the operating element 10 is driven to move towards the handle 210, and the handle 210 drives the flanging 22 to be correspondingly clamped in the limiting groove 211 of the handle 210, so that the locking of the handle 210 can be realized; when the handle 210 needs to be unlocked, the operating element 10 moves towards the direction away from the handle 210, and drives the flanging 22 to be separated from the limiting groove 211, so that the handle 210 is not limited, and normal opening or closing can be performed.

The flange 22 may be formed integrally with the operating element 10, or may be a plate mechanically connected to one end of the operating element 10, which is not limited in this embodiment.

In another embodiment, the locking member 20 can be independent from the operating member 10. For example, referring to fig. 5, an accommodating cavity 11 is formed at one end of the operating element 10 close to the locking member 20, the locking member 20 is disposed in the accommodating cavity 11, an extending section 23 is extended from one end of the locking member 20 close to the handle 210, and the extending section 23 is configured to be clamped in the limiting groove 211 or separated from the limiting groove 211 under the driving of the operating element 10. Therefore, the operating element 10 can drive the locking member 20 to move, so that the extension section 23 of the locking member 20 is correspondingly clamped in the limiting groove 211 or separated from the limiting groove 211.

It should be noted that the locking member 20 is partially accommodated in the accommodating cavity 11, and partially extends out of the accommodating cavity 11 (the extension section 23 is extended out of the accommodating cavity 11). The end of the locking member 20 away from the handle 210 may also have an extension portion extending out of the accommodating chamber 11 (in this case, the two sides of the accommodating chamber 11 close to or away from the handle 210 are disposed in a penetrating manner, that is, the accommodating chamber 11 is in a penetrating state), or may not have an extension portion extending out of the accommodating chamber 11 (in this case, the accommodating chamber 11 has a chamber bottom, and is in a non-penetrating state).

In addition, in the present embodiment, the accommodating cavity 11 may be formed by directly punching a hole in the operating element 10, or may be formed by providing two toggle pieces at an end of the operating element 10 close to the locking piece 20, and enclosing the two toggle pieces. When the accommodating cavity 11 is formed by enclosing two toggle pieces, one of the toggle pieces can act on the locking piece 20 to push the locking piece 20 to move so as to be clamped in the limiting groove 211 when the handle 210 needs to be locked; when the unlocking is needed, the other toggle piece acts on the locking piece 20 to push the locking piece 20 to move so as to be separated from the limiting groove 211.

In order to avoid that the operating member 10 of the safety device is misoperated after the handle 210 is locked by the safety device, in the present embodiment, optionally, one end of the operating member 10 away from the locking member 20 is provided with a stop member for locking the operating member 10 to limit the movement of the operating member 10.

It should be noted that the stop is intended to block the operating member 10 from moving. For example, the stop can be a mechanical lock for locking the actuating part 10 to the housing 220 of the disconnector. Thus, when the operation element 10 needs to be operated, the mechanical lock can be opened by the key and then operated, so that the possibility that the operation element 10 is operated by mistake can be greatly reduced.

Of course, the stop member may also be a latch mechanism attached to the housing 220 of the disconnector, so that the movement of the operating member 10 can be limited by the cooperation of the latch mechanism with the operating member 10. Since the manner is various, those skilled in the art can obtain the design idea provided by the embodiment, and therefore, the description is not repeated here.

In order to quickly restore the safety device to the initial position when unlocking is required, so as to avoid affecting the working efficiency of the isolating switch, in the embodiment, optionally, the safety device further comprises an elastic member 30, one end of the elastic member 30 is connected with the operating member 10 or the locking member 20, the other end of the elastic member is used for being connected with the housing 220 of the isolating switch, and the elastic member 30 is used for providing a force for the locking member 20 to be away from the handle 210.

The elastic member 30 is used for providing an acting force far away from the handle 210 for the locking member 20, that is, the elastic member 30 is in an unstressed state in an initial state, at this time, the safety device is also in an initial position, the locking member 20 is far away from the limiting groove 211 of the handle 210, and the handle 210 can normally rotate; when the handle 210 needs to be locked, the locking piece 20 moves towards the limiting groove 211, and at the moment, the elastic piece 30 is pressed to store energy; when the locking piece 20 is clamped in the limiting groove 211, the elastic piece 30 is pressed to store energy; when the handle 210 needs to be unlocked, the elastic piece 30 releases energy, the locking piece 20 returns to the initial position under the action of the elastic piece 30, and the handle 210 is unlocked.

In another aspect of the present invention, an isolating switch is provided, which includes an operating mechanism and the safety device, the operating mechanism includes a handle 210, the handle 210 is provided with a limiting groove 211, and a locking member 20 of the safety device is configured to be clamped in the limiting groove 211 to lock the handle 210, or to be separated from the limiting groove 211 to unlock the handle 210.

Therefore, when the handle 210 needs to be locked, the operating part 10 of the safety device can be driven to move, so that the operating part 10 drives the locking part 20 to move, the locking part 20 is clamped in the limiting groove 211 of the handle 210, and at this time, the handle 210 cannot rotate and is in a locking state, and the closing operation cannot be realized by operating the handle 210; when the handle 210 needs to be unlocked, the operating element 10 can be driven to move, so that the operating element 10 drives the locking member 20 to move towards a direction away from the limiting groove 211, the handle 210 can be unlocked, and the handle 210 can be normally opened or closed.

Optionally, referring to fig. 1 and fig. 2, the isolating switch further includes a housing 220, a first guide groove 221 is formed on the housing 220, and one end of the locking member 20, which is far away from the operating member 10, is slidably connected in the first guide groove 221.

It should be noted that, the arrangement of the first guide groove 221 provides a guiding function for the movement of the locking member 20, so that the locking member 20 can be installed in a specified path and accurately and effectively clamped in the limiting groove 211, and thus, the operational reliability of the locking member 20 can be improved.

In order to improve the movement reliability of the operating element 10, optionally, the housing 220 of the disconnector is provided with a second guide slot 222, and the operating element 10 is slidably connected in the second guide slot 222. The second guide slot 222 thus provides a guide for the movement of the operating member 10.

Of course, the first guide groove 221 and the second guide groove 222 may be present separately or simultaneously, and when present simultaneously, the operational reliability of the entire safety device is higher.

The above description is only an alternative embodiment of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the utility model is not described in any way for the possible combinations in order to avoid unnecessary repetition.

Claims (10)

1. A safety device is characterized by comprising an operating piece and a locking piece arranged at one end of the operating piece; the operating part is used for driving the locking piece to move, and the locking piece is configured in a limiting groove of a handle of the isolating switch or separated from the limiting groove, so that the handle of the isolating switch is locked or unlocked.

2. A safety arrangement according to claim 1, wherein the locking means is a projection attached to the operating member on a side thereof adjacent the handle.

3. The safety device according to claim 1, wherein the locking member is a flange bent from the operating member toward a side close to the handle.

4. The safety device according to claim 1, wherein an accommodating cavity is formed in one end, close to the locking piece, of the operating piece, the locking piece is arranged in the accommodating cavity, an extending section is arranged at one end, close to the handle, of the locking piece in an extending mode, and the extending section is used for being clamped in the limiting groove or being separated from the limiting groove under the driving of the operating piece.

5. A safety arrangement according to claim 1, wherein the operating member is provided with a stop member at an end remote from the locking member for locking the operating member to limit movement of the operating member.

6. A safety arrangement according to claim 5, wherein the stop member is a mechanical lock for locking the operating member to the housing of the disconnector.

7. The safety device according to claim 1, further comprising an elastic member having one end connected to the operating member or the locking member and the other end connected to the housing of the isolating switch, the elastic member being configured to provide a force to the locking member away from the handle.

8. An isolating switch, characterized in that, including operating device and the safety device of any one of claims 1 to 7, the operating device includes a handle, the handle is provided with a limit groove, the locking piece of the safety device is used for being blocked in the limit groove to lock the handle, or being separated from the limit groove to unlock the handle.

9. The isolating switch of claim 8, further comprising a housing, wherein the housing is provided with a first guide slot, and one end of the locking member, which is away from the operating member, is slidably connected in the first guide slot.

10. The isolating switch of claim 8 or 9, further comprising a housing, wherein the housing is provided with a second guide slot, and the operating member is slidably connected to the second guide slot.

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