A 10KV AC isolating switch

Abstract

The present application relates to the technical field of isolating switches, and discloses a method of placing an inclined surface on the rotation path of the knife so that the inclined surface can fit the surface of the knife better than the placement plate. The inclined surface increases the contact area of ​​the knife to disperse the force generated when the knife collides with the placement plate, thereby avoiding damage to the knife when the knife abuts the placement plate due to strong swinging of the knife, and making it less likely that the knife will be dented during rotation. The staff of the present application slides the placement plate so that the placement plate is located at different positions of the support bar, and fixes the placement plate through a locking assembly so that the placement plate can be stably located on the rotation path of the knife, so that the placement plate can abut the knife, thereby limiting the angle of rotation of the knife toward the side away from the knife seat, avoiding the situation where the knife rotates too much, making it less likely that the knife will collide with other electrical components, and reducing damage to electrical components or the knife.

Description

Technical Field

[0001] The present application relates to the technical field of disconnectors, and in particular to a 10KV AC disconnector. Background Art

[0002] Isolating switches are switching devices mainly used for "isolating power supply, switching operation, and connecting and disconnecting small current circuits". Isolating switches can be divided into outdoor isolating switches and indoor isolating switches according to different usage scenarios. Outdoor isolating switches usually require maintenance personnel to manually close them. Maintenance personnel

[0003] In the related art, the isolating switch includes a shell, a knife is rotatably connected to the shell, a knife seat is provided on the shell, and a connecting plate is provided on the shell. The connecting plate is used to connect other electrical components. When the knife abuts the knife seat, the isolating switch realizes circuit connection.

[0004] When the staff opens the isolating switch, they turn the knife so that the knife can rotate away from the knife seat. If the staff drives the knife with too much force, the knife may abut other electrical components on the connecting plate, causing damage to the electrical components or the knife. Summary of the Invention

[0005] In order to improve the situation where the switch blade rotates at an excessively large angle, the present application provides a 10KV AC isolating switch.

[0006] This application provides a 10KV AC disconnect switch, which adopts the following technical solution:

[0007] A 10KV AC disconnector comprises a housing, a knife being rotatably connected to the housing, a knife holder being provided on the housing, a support bar being provided on the housing, a placement piece being slidably connected to the support bar, the placement piece being located on the rotation path of the knife, and a locking assembly being provided on the housing for fixing the placement piece; when the knife abuts the placement piece, the knife cannot continue to rotate away from the knife holder, and the disconnector is in an open state.

[0008] By adopting the above technical solution, the staff slides the placement piece to place it at different positions of the support bar, and fixes the placement piece through the locking component, so that the placement piece can be stably located on the rotation path of the switch knife, allowing the placement piece to abut the switch knife, thereby limiting the angle of rotation of the switch knife toward the side away from the knife seat, avoiding the situation where the switch knife rotates too much, making it less likely for the switch knife to collide with other electrical components, and reducing damage to electrical components or the switch knife.

[0009] Optionally, a placement block is provided on the placement sheet, and a placement slope is provided on the surface of the placement block away from the shell. The distance between the placement slope and the shell gradually increases along the direction from the knife seat to the placement sheet, and the placement slope is located on the rotation path of the knife.

[0010] By adopting the above technical solution, the inclined surface is placed on the rotation path of the gate knife. Compared with the placement plate, the inclined surface can fit the surface of the gate knife more closely. The inclined surface increases the contact area of ​​the gate knife to disperse the force generated when the gate knife collides with the placement plate, avoiding damage to the gate knife when it abuts the placement plate due to strong swinging of the gate knife by the staff, making it less likely for the gate knife to be dented during rotation.

[0011] Optionally, the locking assembly includes a locking bolt, a first locking hole for the locking bolt to pass through is opened on the placement plate, the first locking hole extends along the length direction of the support bar, a second locking hole for the locking bolt to pass through is opened on the support bar, and the locking bolt is threadedly connected to the second locking hole.

[0012] By adopting the above technical solution, the locking bolt passes through the first locking hole and is threadedly connected to the second locking hole, so that the locking bolt fixes the placement plate and the support bar to each other; since the first locking hole extends along the length direction of the support bar, the placement plate can slide along the length direction of the support bar, so that the staff can adjust the position of the placement plate according to needs. By placing the placement plate at different positions on the support bar, the placement plate can limit the rotation angle of the knife switch, so that the knife switch can adapt to electrical components in different positions, reducing damage between the electrical components and the knife switch.

[0013] Optionally, a placement groove is provided on the placement piece, and a plurality of placement spring pieces are provided in the placement groove. The knife gate is rotatably connected to a limit bar, and the rotation path of the limit bar is located between the two placement spring pieces; when the limit bar is located between the two placement spring pieces, the knife gate is fixed on the placement piece.

[0014] By adopting the above technical solution, the spring clip is placed in the placement groove, and the rotation path of the limit bar is located between the two placement spring clips. The staff can drive the limit bar to be inserted between the two placement spring clips, so that the two placement spring clips can limit the rotation of the limit bar, so that the switch knife is relatively stably located on the placement piece, so that when the staff is repairing the circuit, the switch knife in the isolation switch is not easily closed due to wind blowing or accidental touch by the staff, so as to ensure the safety of the staff and the safety of the circuit.

[0015] Optionally, a receiving groove for placing the spring piece is opened on the groove wall of the placement groove, and a stop bar is slidably connected to the placement groove to seal the opening of the receiving groove, and the stop bar is located in the insertion path of the locking bolt into the first locking hole; when the locking bolt is inserted into the first locking hole, the stop bar does not block the receiving groove, and the placement spring piece protrudes from the receiving groove.

[0016] By adopting the above technical solution, when the staff fixes the placement piece on the support bar, the stop bar is located in the insertion path of the locking bolt into the first locking hole, so that the locking bolt can limit the movement of the stop bar, and the stop bar does not block the opening of the receiving groove, so that the placement spring piece can protrude from the receiving groove, and the placement spring piece can limit the limit bar; when the isolating switch is not installed, the stop bar blocks the receiving groove, making it difficult for foreign objects to enter the receiving groove, thereby reducing the possibility of damage to the placement spring piece when not in use.

[0017] Optionally, a limit block is provided on the limit bar, a guide block is provided on the placement piece, a guide slope is provided on the guide block, the distance between the guide slope and the placement spring piece gradually decreases along the direction from the knife seat to the placement piece, and the guide slope is located on the moving path of the limit block; when the isolating switch is opened, the limit block moves between the two placement spring pieces through the guide slope.

[0018] By adopting the above technical solution, the distance between the guide block and the placement spring piece is gradually reduced along the direction from the knife seat to the placement piece, and the guide slope is located on the moving path of the limit block. The limit block can move along the guide slope, so that the limit block can drive the limit bar to rotate, so that the limit bar can be located between the two placement spring pieces, and the placement spring piece can limit the limit bar, so that the staff does not need to manually limit the knife, thereby reducing the staff's operating steps.

[0019] Optionally, an elastic strip is provided on the stop bar, and the elastic strip is located on the rotation path of the limit bar; when the elastic strip drives the limit bar to rotate, the limit block is located between two placement springs, and the limit block is located on the side of the guide block facing the support bar.

[0020] By adopting the above technical solution, the elastic bar is located on the rotation path of the limit bar, so that the elastic bar can drive the limit bar to rotate, so that the limit block can be located on the side of the guide block facing the support bar, so that the guide block can limit the limit block from moving in the direction away from the support bar, so that the limit block cannot be directly detached from the two placed spring pieces. The staff needs to first rotate the limit bar to disengage the limit block from the side of the guide block close to the support bar, and then move the knife to unlock the knife.

[0021] Optionally, a first magnet is provided on the knife gate, a second magnet is provided on the limit bar, and the first magnet absorbs the second magnet; when the first magnet absorbs the second magnet, the guiding slope is located on the moving path of the limit block.

[0022] By adopting the above technical solution, when the disconnector is opened, the first magnet attracts the second magnet, and the limit bar is not easily rotated as the knife rotates, so that the position of the limit block is fixed, that is, the guide slope is located on the moving path of the limit block, so that the limit block can slide stably through the guide slope, reducing the situation where the knife drives the limit bar to rotate during the rotation process, resulting in the limit block failing to abut the guide slope after the disconnector is opened.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By placing the inclined surface on the rotation path of the gate knife, the inclined surface can fit the surface of the gate knife better than the placement piece. The inclined surface increases the contact area of ​​the gate knife to disperse the force generated when the gate knife collides with the placement piece, avoiding the staff from swinging the gate knife vigorously and causing the gate knife to be damaged in the process of abutting the placement piece, making it less likely for the gate knife to be dented during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of Example 1;

[0026] Figure 2 is a schematic structural diagram of the prominent placement sheet in Example 1;

[0027] Figure 3 is a schematic structural diagram of Example 2;

[0028] Figure 4 It is along Figure 3 Partial cross-sectional view along line AA;

[0029] Figure 5 It is a structural schematic diagram highlighting the connecting plate in Example 2.

[0030] Figure numerals: 1. Shell; 11. Locking assembly; 2. Blade; 21. Bending piece; 22. Limiting strip; 221. Limiting block; 23. First groove; 231. First magnet; 24. Second groove; 241. Second magnet; 3. Blade holder; 4. Supporting strip; 41. Placement piece; 411. Placement block; 412. Placement slope; 42. First locking hole; 43. Second locking hole; 44. Placement groove; 441. Accommodating groove; 442. Placement spring piece; 443. Stop strip; 444. Connecting plate; 445. Elastic strip; 45. Guide block; 451. Guide slope. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-5 This application is described in further detail.

[0032] Example 1

[0033] This embodiment discloses a 10KV AC isolating switch. Figure 1 A 10KV AC disconnector includes a housing 1, a knife 2 rotatably connected to the housing 1, and a knife holder 3 fixedly connected to the housing 1. When the knife 2 abuts the knife holder 3, the disconnector is in the closed state; when the knife 2 separates from the knife holder 3, the disconnector is in the open state. The disconnector can be used for 10KV AC power.

[0034] Reference Figure 1 and Figure 2 A support bar 4 is fixedly connected to the surface of the housing 1 and extends in a direction away from the knife seat 3. A placement piece 41 is slidably provided on the support bar 4, and a locking assembly 11 is provided on the placement piece 41 for limiting the placement piece 41 from sliding on the support bar 4.

[0035] Reference Figure 2 The locking assembly 11 includes a locking bolt. A first locking hole 42 is defined on the surface of the placement plate 41. The first locking hole 42 extends along the length of the support bar 4 and is for the locking bolt to pass through. A second locking hole 43 is defined on the surface of the support bar 4 and is for the locking bolt to threadably engage.

[0036] Reference Figure 2 When the locking bolt passes through the first locking hole 42 and is threadedly connected to the second locking hole 43, the placement piece 41 is fixed to the support bar 4, and the locking assembly 11 fixes the placement piece 41.

[0037] Reference Figure 1 and Figure 2 A bending piece 21 is integrally formed on the surface of the gate blade 2. The bending piece 21 and the gate blade 2 are arranged perpendicular to each other and extend along the length of the gate blade 2. A placement block 411 is integrally formed on the placement piece 41. A placement slope 412 is formed on the surface of the placement block 411 away from the support bar 4. The distance between the placement slope 412 and the support bar 4 gradually increases along the direction from the blade holder 3 to the support bar 4.

[0038] Reference Figure 1 and Figure 2 The placement bevel 412 is located on the rotation path of the gate knife 2, and the bent piece 21 and the gate knife 2 can simultaneously abut the placement bevel 412. When the gate knife 2 and the knife holder 3 are separated, the gate knife 2 can abut the placement bevel 412, and the placement bevel 412 can limit the gate knife 2 from continuing to rotate away from the knife holder 3.

[0039] The implementation principle of Example 1 is as follows: a worker manually passes the locking bolt through the first locking hole 42 , so that the locking bolt is threadedly connected to the second locking hole 43 , thereby fixing the placement plate 41 on the support bar 4 .

[0040] Example 2

[0041] Reference Figure 3 and Figure 4 This embodiment differs from the first embodiment in that a placement slot 44 is defined on the surface of the placement piece 41 facing away from the blade holder 3. The placement slot 44 extends through the surface of the placement piece 41 facing away from the support bar 4. Receiving slots 441 are defined on opposite sides of the placement slot 44. A placement spring 442 is fixedly connected to the bottom wall of the receiving slot 441. The placement spring 442 protrudes away from the bottom wall of the receiving slot 441 and is positioned within the placement slot 44.

[0042] Reference Figure 4 and Figure 5 Two stop bars 443 are slidably connected to the wall of the placement slot 44. The stop bars 443 can block the opening of the receiving slot 441. When the stop bars 443 block the opening of the receiving slot 441, the stop bars 443 restrict the placement spring 442 from moving from the receiving slot 441 into the placement slot 44. A connecting plate 444 is fixedly connected to the surface of the stop bars 443. The connecting plate 444 is fixedly connected to the two stop bars 443 and is located in the insertion path of the locking bolt into the first locking hole 42. When the locking bolt is inserted into the first locking hole 42, the locking bolt can abut the connecting plate 444, and the placement spring 442 can then protrude out of the receiving slot 441.

[0043] Reference Figure 4 The surface of the knife 2 is rotatably connected to the limit bar 22, which can be inserted into the placement groove 44 and can be located between the two placement springs 442. When the limit bar 22 is located between the two placement springs 442, the two placement springs 442 restrict the rotation of the limit bar 22, thereby achieving the support piece's limitation on the knife 2.

[0044] Reference Figure 4 A limit block 221 is integrally formed on the surface of the limit bar 22 and can be inserted between the two placement springs 442. A guide block 45 is fixedly connected to the wall of the placement slot 44. A guide slope 451 is defined on the surface of the guide block 45 facing away from the support bar 4. The distance between the guide slope 451 and the support bar 4 gradually decreases along the direction from the locking bolt to the placement spring 442, and the guide slope 451 is located in the travel path of the limit block 221.

[0045] Reference Figure 4When the knife 2 rotates toward the placement piece 41, the limit block 221 moves along the guide slope 451, so that the guide slope 451 can drive the limit block 221 to rotate, allowing the limit block 221 to move to the side where the two placement springs 442 are away from the locking bolt.

[0046] Reference Figure 4 An elastic strip 445 is fixedly connected to the surface of the connecting plate 444. The elastic strip 445 extends in a direction perpendicular to the length of the support bar 4 and is located on the rotation path of the limit bar 22. When the limit block 221 moves to the side where the two placement springs 442 are away from the locking bolt, the elastic strip 445 is squeezed and compressed by the limit bar 22. At this time, the elastic strip 445 can drive the limit bar 22 to rotate, allowing the limit block 221 to move between the two placement springs 442. At this time, the limit block 221 is located on the side of the guide block 45 close to the support bar 4, so that the guide block 45 restricts the limit block 221 from directly separating from the two placement springs 442 in the direction away from the support bar 4.

[0047] Reference Figure 4 A first groove 23 is formed on the surface of the blade 2, extending along the rotation direction of the limiting bar 22. A first magnet 231 is fixedly connected to the first groove 23. A second groove 24 is formed on the surface of the limiting bar 22, and a second magnet 241 is fixedly connected to the second groove 24. The first magnet 231 attracts the second magnet 241.

[0048] Reference Figure 4 When the first magnet 231 attracts the second magnet 241 , the limit bar 22 can be temporarily fixed on the knife 2 until the limit block 221 abuts against the guide slope 451 , causing the limit block 221 to move along the guide slope 451 , thereby realizing the rotation of the limit bar 22 .

[0049] The implementation principle of Example 2 is as follows: the staff drives the knife switch 2 to rotate to realize the opening of the isolating switch, the first magnet 231 attracts the second magnet 241, so that the limit block 221 can abut the guide slope 451, and the limit block 221 moves along the guide slope 451, so that the limit block 221 can be located on the side of the two placement spring pieces 442 away from the locking bolt. At this time, the elastic strip 445 can drive the limit bar 22 to rotate away from one end of the limit block 221, so that the limit block 221 can move between the two placement spring pieces 442. At this time, the limit block 221 is located on the side of the guide block 45 facing the support bar 4, realizing the limitation of the placement spring piece 442 and the guide block 45 on the limit block 221, so that the knife switch 2 can be temporarily fixed on the shell 1 to avoid the staff from accidentally touching it and causing the isolating switch to be closed.

[0050] Unless otherwise defined, the technical or scientific terms used in this application shall have the usual meanings understood by persons of ordinary skill in the field to which this application belongs. The words "first", "second", "third" and similar terms used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "one" or "a" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprises" cover the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0051] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the design concept of the present application should be included in the scope of protection of the present application.

Claims

1. A 10KV AC disconnector, comprising a housing (1), a knife switch (2) rotatably connected to the housing (1), and a knife holder (3) provided on the housing (1), characterized in that: The housing (1) is provided with a support bar (4), a placement piece (41) is slidably connected to the support bar (4), and the placement piece (41) is located on the rotation path of the knife switch (2). The housing (1) is provided with a locking assembly (11), and the locking assembly (11) is used to fix the placement piece (41); when the knife switch (2) abuts against the placement piece (41), the knife switch (2) cannot continue to rotate in a direction away from the knife seat (3), and the isolating switch is in an open state; The locking assembly (11) includes a locking bolt, a first locking hole (42) for the locking bolt to pass through is formed on the placement plate (41), the first locking hole (42) extends along the length direction of the support bar (4), a second locking hole (43) for the locking bolt to pass through is formed on the support bar (4), and the locking bolt is threadedly connected to the second locking hole (43); The placement piece (41) is provided with a placement groove (44), and a plurality of placement spring pieces (442) are provided in the placement groove (44). The knife gate (2) is rotatably connected to a limit bar (22), and the rotation path of the limit bar (22) is located between the two placement spring pieces (442); when the limit bar (22) is located between the two placement spring pieces (442), the knife gate (2) is fixed on the placement piece (41).

2. A 10KV AC disconnect switch according to claim 1, characterized in that: A placement block (411) is provided on the placement sheet (41), and a placement slope (412) is provided on the surface of the placement block (411) away from the housing (1). The distance between the placement slope (412) and the housing (1) gradually increases along the direction from the knife seat (3) to the placement sheet (41), and the placement slope (412) is located on the rotation path of the gate knife (2).

3. The 10KV AC disconnect switch according to claim 1, characterized in that: The wall of the placement groove (44) is provided with a receiving groove (441) for receiving the spring piece (442), and the placement groove (44) is slidably connected with a stopper bar (443) for blocking the opening of the receiving groove (441), and the stopper bar (443) is located in the insertion path of the locking bolt into the first locking hole (42); When the locking bolt is inserted into the first locking hole (42), the stop strip (443) does not block the receiving slot (441), and at this time the placement spring piece (442) protrudes from the receiving slot (441).

4. The 10KV AC disconnect switch according to claim 3, characterized in that: A limiting block (221) is provided on the limiting bar (22), a guiding block (45) is provided on the placement sheet (41), a guiding bevel (451) is provided on the guiding block (45), the distance between the guiding bevel (451) and the placement spring sheet (442) gradually decreases along the direction from the knife seat (3) to the placement sheet (41), and the guiding bevel (451) is located on the moving path of the limiting block (221); when the isolating switch is opened, the limiting block (221) moves between the two placement spring sheets (442) via the guiding bevel (451).

5. The 10KV AC disconnect switch according to claim 4, characterized in that: An elastic strip (445) is provided on the stop bar (443), and the elastic strip (445) is located on the rotation path of the limit bar (22); when the elastic strip (445) drives the limit bar (22) to rotate, the limit block (221) is located between two placement spring pieces (442), and the limit block (221) is located on the side of the guide block (45) facing the support bar (4).

6. The 10KV AC disconnect switch according to claim 4, characterized in that: The knife gate (2) is provided with a first magnet (231), the limiting strip (22) is provided with a second magnet (241), and the first magnet (231) attracts the second magnet (241); When the first magnet (231) attracts the second magnet (241), the guiding slope (451) is located on the moving path of the limiting block (221).

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