Windproof isolating switch

Abstract

The utility model provides a windproof disconnecting switch, comprising a base which comprises a first inclined plate, a second inclined plate and a transverse connecting plate located between the first inclined plate and the second inclined plate, the three plates are enclosed to form a triangular structure, and the interior of the triangular structure is hollow; the first insulating supporting column is arranged on the first inclined plate, and one side, back to the base, of the first insulating supporting column is connected with a movable contact plate; the second insulating supporting column is arranged on the second inclined plate, and one side, back to the base, of the second insulating supporting column is connected with a static contact plate; the contact disconnecting link is arranged between the first insulating support column and the second insulating support column; the double-locking assembly comprises a first locking assembly used for locking the contact disconnecting link and the movable contact plate and a second locking assembly used for preventing the first locking assembly from tripping, and the isolating switch can overcome the defects that in the prior art, a base is generally long, the occupied area is large, installation is not convenient, and the cost of a power distribution device is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of isolating switches, in particular to a windproof isolating switch. Background Art

[0002] The isolating switch is the most commonly used electrical appliance among high-voltage switchgear. Its working principle and structure are relatively simple. However, due to its large usage and high requirements for working reliability, it has a great impact on the design, construction and safe operation of substations and power plants. The base of conventional isolating switches is generally long and occupies a large area, which is not only inconvenient to install, but also increases the cost of the distribution device. Utility Model Content

[0003] Therefore, the technical problem to be solved by the utility model is to overcome the defects in the prior art that the base is generally long and occupies a large area, which is not only inconvenient to install but also increases the cost of the distribution device, thereby providing a windproof isolating switch with a smaller base.

[0004] To this end, the utility model provides a windproof isolating switch, comprising: a base, which comprises a first inclined plate, a second inclined plate and a horizontal connecting plate located between the first inclined plate and the second inclined plate, the three of which are arranged to form a triangular structure, and the interior of the triangular structure is hollow; a first insulating pillar, which is arranged on the first inclined plate, and a moving touch plate is connected to a side of the first insulating pillar facing away from the base; a second insulating pillar, which is arranged on the second inclined plate, and a static touch plate is connected to a side of the second insulating pillar facing away from the base; a knife switch, which is arranged between the first insulating pillar and the second insulating pillar; a double locking assembly, which comprises a first locking assembly for locking the knife switch and the moving touch plate and a second locking assembly for preventing the first locking assembly from being disengaged.

[0005] Further: the first locking assembly includes a lock buckle arranged on the knife-touch gate and a hook plate arranged below the moving touch plate, and the knife-touch gate has an open state when the lock buckle is separated from the hook plate and a closed state when the lock buckle is engaged with the hook plate.

[0006] Furthermore: the second locking assembly includes a positioning piece arranged on one side of the moving touch plate or the knife switch and an abutment rod arranged on the other side, abutting against the positioning piece and used to prevent the knife switch from moving laterally and disengage the lock buckle from the hook plate.

[0007] Furthermore: the transverse connecting plate is provided with a plurality of connecting holes for connecting fastening nails to be inserted, and the connecting holes are arranged in a "U"-shaped structure.

[0008] Further: the positioning member is located on the moving touch plate, the abutment rod is located on the knife switch, the positioning member includes a positioning plate fixed on the moving touch plate and a positioning rib located above the positioning plate, the positioning plate and the positioning rib are arranged in an "L" structure and are surrounded to form an accommodating cavity for the abutment rod to be inserted into, when the knife switch is in a closed state, the abutment rod is located in the accommodating cavity and abuts against the positioning rib.

[0009] Furthermore: a guiding arc surface for guiding the abutment rod to enter the accommodating cavity is provided on the side of the positioning rib facing away from the positioning plate.

[0010] Further: the guiding arc surface includes a first arc surface located at the top of the positioning rib and a second arc surface located at the connection between the positioning rib and the positioning plate. When the knife switch is in a closed state, the abutment rod contacts the second arc surface.

[0011] The technical solution of this utility model has the following advantages:

[0012] 1. The utility model provides a windproof isolating switch, which shortens the length of the connecting plate, thereby reducing the floor space. The first inclined plate, the second inclined plate and the connecting plate arranged between the first inclined plate and the second inclined plate form a triangular structure. The interior of the triangular structure is hollow, and wind can pass through the hollow position, thereby playing a windproof role. Due to the stable characteristics of the triangle, the installation stability of the first insulating support and the second insulating support is guaranteed, and the first insulating support and the second insulating support are respectively installed on the first inclined plate and the second inclined plate. The first insulating support and the second insulating support are arranged in an inverted triangular structure, thereby ensuring that there is a sufficient distance between the first insulating support and the second insulating support. One end of the knife switch is hinged to the static touch plate, and the other end can be opened and closed with the moving touch plate. In order to ensure that the knife switch and the moving touch plate are accidentally opened, a double locking assembly is arranged between the knife switch and the moving touch plate to ensure that the isolating switch can operate normally when the knife switch is in the closed state.

[0013] 2. The utility model provides a windproof isolating switch, wherein the first locking component includes a lock catch arranged on the knife gate and a hook plate under the touch plate. When the knife gate is in a closed state, the lock catch will be engaged with the hook plate. However, when the moving touch plate and the static touch plate are energized, electromagnetic force will be generated. Due to the interaction of the magnetic fields between them, a repulsive force will be generated, and the repulsive force will form a horizontal pulling force. When the repulsive force is too large, the lock catch will be separated from the hook plate, thereby causing the isolating switch to be opened. Therefore, a second locking component is provided between the moving touch plate and the knife gate for performing a second re-positioning. The second locking component includes a positioning piece arranged on the moving touch plate and an abutment rod arranged on the knife gate. When the knife gate is switched from an open state to a closed state, the knife gate rotates counterclockwise until the abutment rod is stuck in the positioning piece, thereby effectively preventing the lock catch from being disengaged from the hook plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods 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 This is the overall structure diagram of the isolating switch;

[0016] Figure 2 is a structural diagram of a double locking assembly;

[0017] Figure 3 A cross-sectional view of the double lock assembly.

[0018] Description of reference numerals:

[0019] 1. First inclined plate; 11. Second inclined plate; 12. Connecting plate; 13. Connecting hole; 2. First insulating pillar; 21. Moving touch plate; 3. Second insulating pillar; 31. Static touch plate; 4. Knife switch; 5. First locking assembly; 51. Lock buckle; 52. Hook plate; 6. Second locking assembly; 61. Positioning member; 611. Positioning plate; 612. Positioning rib; 62. Abutting rod; 63. Accommodating cavity; 7. First arc surface; 71. Second arc surface. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] Example

[0025] The present embodiment provides a windproof isolating switch, comprising: a base, which comprises a first inclined plate 1, a second inclined plate 11 and a horizontal connecting plate 12 located between the first inclined plate 1 and the second inclined plate 11, the three of which are arranged to form a triangular structure, and the interior of the triangular structure is hollow; a first insulating pillar 2, which is arranged on the first inclined plate 1, and a moving touch plate 21 is connected to the side of the first insulating pillar 2 facing away from the base; a second insulating pillar 3, which is arranged on the second inclined plate 11, and a static touch plate 31 is connected to the side of the second insulating pillar 3 facing away from the base; a knife switch 4, which is arranged between the first insulating pillar 2 and the second insulating pillar 3; a double locking assembly, which comprises a first locking assembly 5 for locking the knife switch 4 and the moving touch plate 21 and a second locking assembly 6 for preventing the first locking assembly 5 from being disengaged.

[0026] The above specific improvements are: Figure 1 and Figure 2 As shown, compared with the prior art, the length of the connecting plate 12 is shortened, thereby reducing the floor space. The first inclined plate 1, the second inclined plate 11 and the connecting plate 12 arranged between the first inclined plate 1 and the second inclined plate 11 form a triangular structure. The interior of the triangular structure is hollow, and wind can pass through the hollow position, thereby playing a windproof role. Due to the stable characteristics of the triangle, the installation stability of the first insulating support 2 and the second insulating support 3 is guaranteed, and the first insulating support 2 and the second insulating support 3 are respectively installed on the first inclined plate 1 and the second inclined plate 11. The first insulating support 2 and the second insulating support 3 are arranged in an inverted triangle structure, thereby ensuring that there is a sufficient distance between the first insulating support 2 and the second insulating support 3. One end of the knife switch 4 is hinged to the static touch plate 31, and the other end can be opened and closed with the moving touch plate 21. In order to ensure that the knife switch 4 and the moving touch plate 21 are accidentally opened, a double locking component is arranged between the knife switch 4 and the moving touch plate 21 to ensure that the disconnector can operate normally when the knife switch 4 is in the closed state.

[0027] On the basis of the above embodiment: the first locking assembly 5 includes a lock buckle 51 arranged on the knife touch gate 4 and a hook plate 52 arranged under the moving touch plate 21, and the knife touch gate has an open state when the lock buckle 51 is separated from the hook plate 52 and a closed state when the lock buckle 51 is engaged with the hook plate 52.

[0028] Based on the above embodiment: the second locking assembly 6 includes a positioning member 61 arranged on one side of the moving touch plate 21 or the knife contact gate and an abutment rod 62 arranged on the other side, abutting against the positioning member 61, and used to prevent the knife contact gate 4 from moving laterally and disengage the lock buckle 51 from the hook plate 52.

[0029] The above specific improvements are: Figure 2 and Figure 3 As shown, the first locking component 5 includes a lock buckle 51 arranged on the knife gate 4 and a hook plate 52 under the touch plate. When the knife gate 4 is in the closed state, the lock buckle 51 will be engaged with the hook plate 52. However, when the moving touch plate 21 and the static touch plate 31 are energized, an electromagnetic force will be generated. Due to the interaction of the magnetic fields between them, a repulsive force will be generated, and the repulsive force will form a horizontal pulling force. When the repulsive force is too large, the lock buckle 51 will be separated from the hook plate 52, thereby causing the isolating switch to be opened. Therefore, a second locking component 6 is provided between the moving touch plate 21 and the knife gate 4 for performing a second repositioning. The second locking component 6 includes a positioning member 61 arranged on the moving touch plate 21 and an abutment rod 62 arranged on the knife gate 4. When the knife gate 4 is switched from the open state to the closed state, the knife gate 4 rotates counterclockwise until the abutment rod 62 is stuck in the positioning member 61, thereby effectively preventing the lock buckle 51 from being disengaged from the hook plate 52.

[0030] On the basis of the above embodiment: the transverse connecting plate 12 is provided with a plurality of connecting holes 13 for connecting fastening nails to be inserted, and the connecting holes 13 are arranged in a "U"-shaped structure.

[0031] The above specific improvements are: Figure 1 As shown, by providing the “U”-shaped connecting hole 13 , the fastening nail can enter the connecting hole 13 from the opening of the connecting hole 13 , thereby fixing the position of the transverse connecting plate 12 .

[0032] On the basis of the above embodiment: the positioning member 61 is located on the moving touch plate 21, the abutment rod 62 is located on the knife switch, the positioning member 61 includes a positioning plate 611 fixed on the moving touch plate 21 and a positioning rib 612 located above the positioning plate 611, the positioning plate 611 and the positioning rib 612 are arranged in an "L" structure and are surrounded by a accommodating cavity 63 for the abutment rod 62 to be inserted into, when the knife switch is in the closed state, the abutment rod 62 is located in the accommodating cavity 63 and abuts against the positioning rib 612.

[0033] On the basis of the above embodiment: a guiding arc surface for guiding the abutment rod 62 to enter the accommodating cavity 63 is provided on a side of the positioning rib 612 facing away from the positioning plate 611 .

[0034] Based on the above embodiment: the guiding arc surface includes a first arc surface 7 located at the top of the positioning rib 612 and a second arc surface 71 located at the connection between the positioning rib 612 and the positioning plate 611. When the knife switch is in the closed state, the abutment rod 62 contacts the second arc surface 71.

[0035] The above specific improvements are: Figure 2 and Figure 3 As shown, the positioning member 61 includes a positioning plate 611 and a positioning rib 612. The positioning plate 611 is fixed on the moving touch plate 21. The positioning rib 612 has two fixed positions on one side of the positioning plate 611 near the front and rear ends. When the knife switch 4 switches from the open state to the closed state, the abutment rod 62 will first contact the first arc surface 7, and then the knife switch 4 continues to press downward. Guided by the first arc surface 7, the positioning rib 612 moves toward the side close to the static touch plate 31 to a certain extent, and finally contacts the second arc surface 71. The abutment rod 62 stays in the accommodating cavity 63, thereby preventing the moving touch plate 21 and the static touch plate 31 from driving the hook plate 52 to move laterally after being energized, causing the hook plate 52 to separate from the lock buckle 51.

[0036] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A windproof isolating switch, characterized in that: include: The base comprises a first inclined plate (1), a second inclined plate (11) and a transverse connecting plate (12) located between the first inclined plate (1) and the second inclined plate (11), wherein the three are arranged to form a triangular structure, and the interior of the triangular structure is hollow; A first insulating support (2) is arranged on the first inclined plate (1), and a moving contact plate (21) is connected to a side of the first insulating support that faces away from the base; A second insulating support (3) is arranged on the second inclined plate (11), and a static contact plate (31) is connected to a side of the second insulating support that faces away from the base; A knife switch (4) is arranged between the first insulating support (2) and the second insulating support (3); A double locking assembly comprises a first locking assembly (5) for locking a knife contact switch (4) and a moving contact plate (21) and a second locking assembly (6) for preventing the first locking assembly (5) from being released.

2. A windproof isolating switch according to claim 1, characterized in that: The first locking assembly (5) comprises a lock catch (51) arranged on the knife-touch switch and a hook plate (52) arranged below the moving touch plate (21); the knife-touch switch has an open state when the lock catch (51) is separated from the hook plate (52) and a closed state when the lock catch (51) is engaged with the hook plate (52).

3. A windproof isolating switch according to claim 1 or 2, characterized in that: The second locking assembly (6) comprises a positioning member (61) arranged on one side of the moving touch plate (21) or the knife contact switch, and an abutting rod (62) arranged on the other side and abutting against the positioning member (61) and used to prevent the knife contact switch from moving laterally and to disengage the lock buckle (51) from the hook plate (52).

4. A windproof isolating switch according to claim 3, characterized in that: The transverse connecting plate (12) is provided with a plurality of connecting holes (13) for connecting and fastening nails to be inserted into, and the connecting holes (13) are arranged in a "U"-shaped structure.

5. A windproof isolating switch according to claim 4, characterized in that: The positioning member (61) is located on the moving touch plate (21), and the abutment rod (62) is located on the knife switch. The positioning member (61) comprises a positioning plate (611) fixed on the moving touch plate (21) and a positioning rib (612) located above the positioning plate (611). The positioning plate (611) and the positioning rib (612) are arranged in an "L" structure and are surrounded to form a receiving cavity (63) for the abutment rod (62) to be inserted into. When the knife switch is in a closed state, the abutment rod (62) is located in the receiving cavity (63) and abuts against the positioning rib (612).

6. A windproof isolating switch according to claim 5, characterized in that: A guiding arc surface for guiding the abutment rod (62) to enter the accommodating cavity (63) is provided on a side of the positioning rib (612) facing away from the positioning plate (611).

7. A windproof isolating switch according to claim 6, characterized in that: The guiding arc surface comprises a first arc surface (7) located at the top of the positioning rib (612) and a second arc surface (71) located at the connection between the positioning rib (612) and the positioning plate (611); when the knife switch is in a closed state, the abutment rod (62) contacts the second arc surface (71).

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