CN210516587U

CN210516587U - Isolator and ground connection interlocking device

Info

Publication number: CN210516587U
Application number: CN201921924068.3U
Authority: CN
Inventors: 屠晓余; 尹铁军
Original assignee: Jiangxi Pro Eaton Electric Co ltd
Current assignee: Jiangxi Pro Eaton Electric Co ltd
Priority date: 2019-11-09
Filing date: 2019-11-09
Publication date: 2020-05-12
Anticipated expiration: 2029-11-09

Abstract

The utility model belongs to the power equipment field discloses an isolator and ground connection interlocking device, including keeping apart operating axis, interlock action bars and interlocking board, keep apart the one end that the operating axis is located interlocking board, the interlock action bars is located interlocking board's the other end, keep apart operating axis, interlock action bars all with interlocking board swing joint, the bottom of keeping apart operating axis and interlocking action bars all is provided with the driving medium. When the isolating switch is switched on, the isolating operation shaft rotates along with the transmission piece, and the interlocking operation rod is locked by the interlocking plate, so that the switching-on of the grounding switch is limited; when the grounding switch is switched on, the linkage operating rod rotates along with the transmission piece, the linkage operating rod is locked by the linkage plate, and the switching-on of the isolating switch is limited, so that the mechanical interlocking control between the isolating switch and the grounding switch is realized, the structure is simple, the operation is convenient, and the burden of an isolating switch operating mechanism and a grounding switch operating mechanism cannot be increased.

Description

Isolator and ground connection interlocking device

Technical Field

The utility model relates to a power equipment field, more specifically say, relate to an isolator and ground connection interlocking device.

Background

In the power transmission and distribution system, an outdoor high-voltage alternating-current isolating switch and an outdoor high-voltage alternating-current grounding switch are frequently matched for use, such as a double-grounding outdoor high-voltage isolating switch and a single-grounding outdoor high-voltage grounding isolating switch, which are widely applied, when the power transmission and distribution system is overhauled, the power of overhauling equipment needs to be disconnected, even if the isolating switch is switched off, the overhauled equipment has enough visible safety distance, a reliable insulation gap is established, the safety of overhauling personnel and equipment is ensured, in order to ensure the safety of working personnel, the grounding switch needs to be closed, the overhauled equipment is in a grounding state, namely the overhauled equipment is converted into an overhauling state.

Therefore, the disconnecting switch and the grounding switch are usually operated by adopting an interlocking device, the interlocking device enables the disconnecting switch and the grounding switch not to be switched on simultaneously, namely the grounding switch does not allow switching on when the disconnecting switch is switched on, and the disconnecting switch does not allow switching on when the grounding switch is switched on, the existing disconnecting switch and the grounding interlocking device are very troublesome to operate when in use, the burden of an operating mechanism of the disconnecting switch and an operating mechanism of the grounding switch can be increased, and a plurality of troubles are added to workers.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims at providing an isolator and ground connection interlocking device possesses easy operation's advantage, has solved current isolator and ground connection interlocking device and has operated very troublesome when using, can increase isolator operating mechanism and ground connection switch operating mechanism's burden moreover, has increased many troublesome problems for the staff.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

The utility model provides an isolator and ground connection interlocking device, includes isolation operating axis, interlock action bars and interlocking board, the isolation operating axis is located the one end of interlocking board, the interlock action bars is located the other end of interlocking board, isolation operating axis, interlock action bars all with interlocking board swing joint, the bottom of isolation operating axis and interlock action bars all is provided with the driving medium, the middle part swing joint of interlocking board has the interlocking board axle, the axis of isolation operating axis, interlock action bars and interlocking board axle is parallel to each other.

Preferably, the two transmission parts comprise equal transmission rods, the tops of the two transmission rods are fixedly connected with the isolation operation shaft and the bottom of the linkage operation rod respectively, cams fixedly connected with the transmission rods are sleeved on the two transmission rods, and the two cams are in contact with the linkage plate respectively.

Preferably, the front surface of the transmission rod at the bottom of the interlocking operating rod is fixedly connected with a grounding interlocking plate fixing block.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

when the isolating switch is switched on, the isolating operation shaft rotates along with the transmission piece, and the interlocking operation rod is locked by the interlocking plate, so that the switching-on of the grounding switch is limited; when the grounding switch is switched on, the linkage operating rod rotates along with the transmission piece, the linkage operating rod is locked by the linkage plate, and the switching-on of the isolating switch is limited, so that the mechanical interlocking control between the isolating switch and the grounding switch is realized, the structure is simple, the operation is convenient, and the burden of an isolating switch operating mechanism and a grounding switch operating mechanism cannot be increased.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

The reference numbers in the figures illustrate:

1. isolating the operating shaft; 2. an interlock operating lever; 3. an interlock plate; 4. a transmission member; 41. a transmission rod; 42. a cam; 5. an interlock plate shaft; 6. and a ground interlocking plate fixing block.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to 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" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, an isolation switch and ground connection interlocking device comprises an isolation operation shaft 1, an interlocking operation rod 2 and an interlocking plate 3, wherein the isolation operation shaft 1 is located at one end of the interlocking plate 3, the interlocking operation rod 2 is located at the other end of the interlocking plate 3, the isolation operation shaft 1 and the interlocking operation rod 2 are movably connected with the interlocking plate 3, transmission members 4 (not shown in a power mechanism diagram of the transmission members 4) are arranged at the bottoms of the isolation operation shaft 1 and the interlocking operation rod 2, an interlocking plate shaft 5 is movably connected at the middle part of the interlocking plate 3, the axes of the isolation operation shaft 1, the interlocking operation rod 2 and the interlocking plate shaft 5 are parallel to each other, the isolation switch is switched on, the isolation operation shaft 1 rotates along with the transmission members 4, the interlocking operation rod 2 is locked by the interlocking plate 3, and the ground connection switch is limited; the grounding switch is switched on, the linkage operating rod 2 rotates along with the transmission piece 4, the linkage operating rod 2 is locked by the linkage plate 3, and the isolation switch is limited to be switched on.

Further, two driving medium 4 include equal transfer line 41, and the top of two transfer lines 41 respectively with keep apart operating axis 1 and interlock operating lever 2 bottom fixed connection, all overlap on two transfer lines 41 and be equipped with rather than fixed connection's cam 42, two cams 42 respectively with interlock board 3 contact.

Further, the front surface of the transmission rod 41 at the bottom of the interlocking operating rod 2 is fixedly connected with a grounding interlocking plate fixing block 6.

The working principle is as follows: when the isolating switch is in a closing state, a power mechanism of the transmission part 4 drives a transmission rod 41 in the transmission part 4 to rotate so as to drive the isolating operation shaft 1 to rotate, the surface of a cam 42 on the transmission rod 41 props against a linkage plate 3, and the other side of the linkage plate 3 props against the planar part of the cam 42 at the linkage operation rod 2, so that the grounding switch cannot be operated, when the isolating switch is in an opening state, the isolating operation shaft 1 and the linkage operation rod 2 are unlocked, and the grounding switch can be operated;

on the contrary, when the grounding switch is in a closing state, the linkage operating rod 2 rotates along with the transmission piece 4 at the position of the linkage operating rod 2, one side of the cam 42 props against the linkage plate 3, and the other side of the linkage plate 3 props against the plane part of the cam 42 at the position of the isolation operating shaft 1;

the utility model discloses realize the mechanical interlocking control between isolator and the earthing switch, simple structure, convenient operation, and can not increase isolator operating mechanism and earthing switch operating mechanism's burden.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a isolator and ground connection interlocking device which characterized in that: including keeping apart operating shaft (1), interlock action bars (2) and interlock board (3), keep apart operating shaft (1) and be located the one end of interlock board (3), interlock action bars (2) are located the other end of interlock board (3), keep apart operating shaft (1), interlock action bars (2) all with interlock board (3) swing joint, the bottom of keeping apart operating shaft (1) and interlock action bars (2) all is provided with driving medium (4), the middle part swing joint of interlock board (3) has interlock board axle (5), the axis of keeping apart operating shaft (1), interlock action bars (2) and interlock board axle (5) is parallel to each other.

2. The disconnecting switch and grounding interlock device according to claim 1, wherein: two driving medium (4) are including equal transfer line (41), two the top of transfer line (41) respectively with keep apart operating axis (1) and interlock operating lever (2) bottom fixed connection, two all overlap on transfer line (41) and be equipped with rather than fixed connection's cam (42), two cam (42) contact with interlock board (3) respectively.

3. The disconnecting switch and grounding interlock device according to claim 2, wherein: the front surface of a transmission rod (41) at the bottom of the interlocking operating rod (2) is fixedly connected with a grounding interlocking plate fixing block (6).