Isolating switch capable of preventing birds from nesting

Abstract

The utility model provides an isolating switch capable of preventing birds from nesting, which comprises a support insulating column arranged on a base at an interval, two conductive arms rotationally connected to the support insulating column, and a female contact and a male contact arranged at cantilever ends of the conductive arms. The conductive arm is composed of two supporting plates which are arranged in a left-right spaced mode, and the blocking net plate and the sealing net plate are additionally arranged on the telescopic horizontal fracture formed by the two supporting plates of the conductive arm and the contact, so that the problem of contact of the contact caused by nesting of birds at the position is solved. And or the nesting objects may fall on wires or insulators to cause line faults. In addition, under the condition that the normal operation and the opening and closing actions of the isolating switch are not influenced, the new additional parts are changed less, and the original design is utilized as much as possible for additional installation.

Description

Technical Field

[0001] This utility model relates to the field of disconnecting switch technology, and in particular to a disconnecting switch for preventing birds from nesting. Background Technology

[0002] A disconnector switch is a switching device primarily used for isolating power sources, switching operations, and connecting and disconnecting small-current circuits. It lacks arc-extinguishing capabilities and can only open and close circuits when there is no load current. However, in actual operation, capacitive and inductive currents exist in the line, causing arcing during opening and closing of the disconnector switch. This arcing erodes the contacts, reducing their lifespan. To improve contact lifespan, current disconnectors typically employ a telescopic horizontal break in their planar structure, with the conductive arms and conductors mounted horizontally. The contact fingers are also protected by baffles, forming a ring-shaped space. This ring-shaped structure attracts birds to nest, often carrying twigs, wires, weeds, and soil along the line. These materials can fall onto conductors or insulators, causing contact problems and line faults. Furthermore, as a primary conductive device, the disconnector switch poses a risk of overheating, and these flammable materials further reduce the safety risk to the power grid. Therefore, improvements to these disconnectors are necessary to meet equipment safety operation standards. Utility Model Content

[0003] The main technical problem to be solved by this utility model is to provide an isolation switch to prevent birds from nesting, so as to solve the problems in the background art mentioned above.

[0004] To solve the above-mentioned technical problems, this utility model provides a disconnecting switch for preventing birds from nesting, including a supporting insulating column spaced apart on a base and two conductive arms rotatably connected to the supporting insulating column, as well as a female contact and a male contact disposed on the cantilever end of the conductive arm; the conductive arm is composed of two supporting plates spaced apart from left to right, and the upper and lower ports between the supporting plates are encapsulated with a barrier mesh plate for preventing birds from nesting, and the port of the male contact facing the closing direction is provided with a sealing mesh plate.

[0005] In a preferred embodiment: the planar shape of the barrier mesh plate is rectangular, its length is the opening length at the upper and lower ports of the conductive arm, and its width is the maximum distance between the two support plates that are spaced apart on the left and right.

[0006] In a preferred embodiment, the planar shape of the sealing mesh plate is adapted to the port shape of the male contact facing the closing direction.

[0007] In a preferred embodiment: the sealing mesh and the barrier mesh are connected to the conductive arm by a fixed connection.

[0008] In a preferred embodiment, the fixed connection method is welding.

[0009] In a preferred embodiment: the male contact includes an abutment post disposed at a corresponding position at the cantilever end of the conductive arm, the abutment post including abutment heads disposed at both ends, the outer wall of the abutment head being concave inward along the circumference to form an annular groove.

[0010] In a preferred embodiment: the female contact is provided with strip-shaped contact fingers that are movably engaged with the abutment post, and there are four strip-shaped contact fingers. Two strip-shaped contact fingers are distributed at intervals on the support plate on the same side.

[0011] In a preferred embodiment: when the abutting post abuts against the strip-shaped contact finger, the abutting heads at both ends are correspondingly engaged with the strip-shaped contact finger at the corresponding positions.

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

[0013] This invention provides a bird-proof disconnecting switch. By adding a barrier mesh and a sealing mesh to the horizontal break formed at the two support plates of the conductive arm and the contact, it prevents birds from nesting at that location, thus avoiding contact problems caused by birds building nests, and preventing these nests from falling onto the conductors or insulators and causing line faults. Furthermore, this invention's new external components achieve minimal modification without affecting the normal operation and opening / closing actions of the disconnecting switch, utilizing the existing design as much as possible. Attached Figure Description

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

[0015] Figure 2 This is an exploded view of the structural components of this utility model;

[0016] Figure 3 This is a schematic diagram showing the situation without the barrier mesh installed.

[0017] Figure 4 This is a schematic diagram showing the installation of the barrier mesh panel;

[0018] Figure 5 This is a plan view of the upper barrier mesh plate of this utility model;

[0019] Figure 6 for Figure 5 Enlarged view of the structure at point a;

[0020] Figure 7 This is a plan view of the sealing mesh plate of this utility model. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0024] refer to Figure 1 The present invention discloses a bird-proof isolation switch comprising a base 1, spaced-apart supporting insulating posts 101 on the base 1, and conductive arms 102 respectively mounted on the upper ends of the supporting insulating posts 101. The two supporting insulating posts 101 are rotated to cause the conductive arms 102 respectively mounted on the upper ends of the supporting insulating posts 101 to come into contact or separate. (See reference...) Figure 2 , 3The conductive arm 102 consists of two support plates spaced apart on the left and right. The support plates are made of aluminum alloy and have a certain degree of elastic deformation capability. The ends of the two support plates on the same side are fixed to the upper end of the insulating support column 101. The other end is provided with a female contact 102-1 and a male contact 102-2. The female contact 102-1 includes four copper strip-shaped contact fingers. The male contact 102-2 includes two copper abutment posts. The four strip-shaped contact fingers are distributed in pairs on the sidewall of the support plate on the same side. The male contact 102-2 includes abutment posts located at corresponding positions on the cantilever end of the conductive arm. Each abutment post includes abutment joints at both ends, the outer wall of which is concave inward to form an annular groove. When the circuit is closed, the two abutment posts engage with the openings at the ends of the two support plates, opening the ends of the conductive arm in the corresponding direction. Then, each abutment post abuts against the two strip-shaped contact fingers on the same side, completing the closing process.

[0025] Since each conductive arm 102 is composed of two support plates spaced apart on the left and right, with one end fixed to the upper end of the insulating support column 101 and the other end respectively equipped with a female contact 102-1 and a male contact 102-2 for end connection between the support plates, this structure forms a ring-shaped space. This structure easily attracts birds to nest. When nesting, birds often carry twigs, wires, weeds, and soil back and forth along the line. If these nesting materials fall onto the conductors or insulators, it can cause contact problems and lead to line faults. In addition, these nesting materials are flammable. As a primary conductive device, the disconnecting switch has the risk of overheating, which inevitably involves the risk of power grid safety. In view of this, referring to Figure 4 This invention includes a barrier mesh 2 for preventing birds from nesting at the upper and lower ports between the two support plates of the conductive arm 102. The barrier mesh 2 has a rectangular shape, its length being the opening length at the upper and lower ports of the conductive arm 102, and its width being the maximum distance between the two support plates spaced apart on the left and right. Since the port facing the closing direction of the male contact is an open end, considering that birds may enter the conductive arm 102 through this opening, this embodiment provides a sealing mesh 3 at this location, with a planar shape adapted to the shape of the male contact port. (Reference) Figure 5-7 From the detailed shapes of the sealing mesh plate 3 and the barrier mesh plate 2, it can be seen that a certain number of mesh holes are provided on the mesh plate. The mesh hole patterns are arranged in a predetermined order on the mesh plate. The sealing mesh plate 3 and the barrier mesh plate 2 can be fixedly connected to the conductive arm 102 by welding or bolting. If bolting is used, the diameter of the mesh hole should be matched with the diameter of the bolt.

[0026] The above description is only a preferred embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modifications made to the present utility model by those skilled in the art within the scope of the technology disclosed in the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.

Claims

1. A disconnect switch for preventing birds from nesting, characterized in that: It includes a support insulating column spaced apart on the base and two conductive arms rotatably connected to the support insulating column, as well as a female contact and a male contact disposed on the cantilever end of the conductive arm; The conductive arm consists of two support plates spaced apart on the left and right. The upper and lower ports between the support plates are encapsulated with barrier mesh plates to prevent birds from nesting. The port of the male contact facing the closing direction is provided with a sealing mesh plate.

2. The isolating switch for preventing birds from nesting according to claim 1, characterized in that: The barrier mesh is rectangular in shape, with its length being the opening length at the upper and lower ends of the conductive arm and its width being the maximum distance between the two support plates spaced apart on the left and right.

3. The isolating switch for preventing birds from nesting according to claim 1, characterized in that: The planar shape of the sealing mesh plate is adapted to the port shape of the male contact facing the closing direction.

4. The isolating switch for preventing birds from nesting according to claim 3, characterized in that: The sealing mesh and the barrier mesh are connected to the conductive arm by a fixed connection.

5. The isolating switch for preventing birds from nesting according to claim 1, characterized in that: The male contact includes an abutment post disposed at a corresponding position at the cantilever end of the conductive arm. The abutment post includes abutment joints disposed at both ends, and the outer wall of the abutment joint is concave inward along the circumference to form an annular groove.

6. The isolating switch for preventing birds from nesting according to claim 5, characterized in that: The female contact head is provided with four strip-shaped contact fingers that are movably engaged with the abutment post. Two strip-shaped contact fingers are distributed at intervals on the support plate on the same side.

7. The isolating switch for preventing birds from nesting according to claim 6, characterized in that: When the abutting post abuts against the strip-shaped contact finger, the abutting heads at both ends are correspondingly engaged with the strip-shaped contact finger at the corresponding positions.

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