High-voltage isolating switch with grounding switch

Abstract

The utility model provides a high-voltage isolating switch with a grounding switch, which comprises a base, a driving insulator, a driven insulator, a first connecting rod, a contact finger, a grounding rod, a first limiting plate and a second limiting plate, and is characterized in that the base is suitable for being mounted on a cross arm of a telegraph pole; the driving insulator and the driven insulator are rotationally connected with the base, and the synchronous rotation of the driving insulator and the driven insulator in the direction is realized through the first connecting rod; a contact finger and a first limiting plate are arranged on a driving insulator or a driven insulator, a second limiting plate is arranged on a cross bar of a grounding rod, the first limiting plate limits rotation of the second limiting plate in a switching-on state, and electric leakage accidents caused by the fact that the grounding rod rotates upwards to make contact with a first contact or a second contact in the switching-on state are effectively avoided; when the switch is switched off and the grounding rod is in contact with the contact finger, the second limiting plate limits the rotation of the first limiting plate, so that the condition that the conductive part is damaged due to wrong operation and driving of the driving insulator to rotate when the vertical rod is in contact with the contact finger is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric appliances, and in particular relates to a high-voltage isolating switch with a grounding knife. Background Art

[0002] The main purpose of the isolating switch is to ensure the isolation between the maintenance part and the live parts in the circuit and to use the isolating switch to switch the circuit or close the no-load circuit.

[0003] The applicant has a disconnector, including a base and an insulator, wherein the base plays a supporting and fixing role, and fixes the insulator as a whole and fixes it on the foundation; the insulator includes an active insulator and a driven insulator, which are rotatably installed on the base and connected by a connecting rod, and their main function is to insulate the live part from the grounded part, wherein the active insulator rotates through the connecting rod to drive the driven insulator to rotate in the opposite direction synchronously; and contacts are provided on both the active insulator and the driven insulator, and the connection and disconnection of the two contacts are achieved through the rotation of the insulator. When working, the active insulator is driven to rotate by the driving mechanism arranged below, which drives the driven insulator to rotate in the opposite direction synchronously, so that the two contacts are in contact or disconnected, and the opening and closing operation of the disconnector is realized.

[0004] Some disconnectors are equipped with an earthing knife, which is rotatably connected to the base and driven to rotate by an external drive assembly. After disconnecting the disconnector, the earthing knife is electrically connected to the insulating terminal to ground it. After that, the staff can start the operation. After the operation is completed, it is necessary to first disconnect the connection between the earthing knife and the insulating terminal, and then rotate the insulator to complete the closing.

[0005] During operation, due to incorrect operation, the insulator may be rotated to close the circuit breaker when the grounding knife is electrically connected to the insulating terminal, resulting in dangerous situations such as damage to conductive parts or tripping. Utility Model Content

[0006] The utility model provides a high-voltage isolating switch with a grounding knife, aiming to solve the technical problems recorded in the above background technology.

[0007] In order to achieve the above object, the technical solution adopted by the utility model is: to provide a high-voltage isolating switch with a grounding knife, comprising:

[0008] A base suitable for mounting on a cross arm of a utility pole;

[0009] An active insulator is connected to the base and rotatably cooperates with the base, and the active insulator is suitable for being connected to the power output end of the first driving mechanism; the active insulator is provided with a first contact;

[0010] A driven insulator is arranged at a distance on one side of the active insulator, connected to the base, and rotatably matched with the base; a second contact is provided on the driven insulator;

[0011] A first connecting rod, both ends of which are respectively rotatably matched with the active insulator and the driven insulator, so that when the active insulator and the driven insulator rotate, they rotate synchronously in opposite directions, thereby making the first contact and the second contact contact or disconnect;

[0012] A contact finger, connected to the first contact or the second contact and electrically connected;

[0013] A grounding rod, comprising a crossbar and a vertical rod, wherein the crossbar is rotatably connected to the base and is suitable for being connected to the power output end of the second driving mechanism; the lower end of the vertical rod is connected to the crossbar, the vertical rod has the freedom to rotate in a vertical plane with the crossbar as the axis, and in the gate-opening state, the upper end of the vertical rod is suitable for contacting the contact finger, and the vertical rod is suitable for grounding;

[0014] A first limiting plate connected to the active insulator or the driven insulator; and

[0015] The second limit plate is connected to the cross bar. In the closed state, the first limit plate limits the second limit plate from rotating upward. In the open state, the vertical bar contacts the contact finger, and the second limit plate limits the first limit plate from rotating.

[0016] In a possible implementation of the high-voltage disconnector with grounding knife provided by the utility model, the contact finger includes two conductive plates, the two conductive plates are arranged at an interval, one end is connected to the second contact or the first contact, and the vertical rod is suitable for being clamped between the two conductive plates.

[0017] In a possible implementation of the high-voltage disconnector with grounding knife provided by the utility model, a first transmission mechanism is also included, and the first transmission mechanism includes:

[0018] A first mounting plate, disposed on one side of the base and connected to the base;

[0019] A first receiving shaft, which is arranged vertically, is rotatably connected to the mounting plate and has the freedom to rotate around its own axis, and the first receiving shaft is used to be coaxially connected to the transmission shaft of the first driving mechanism;

[0020] A first driving rod is connected to the first receiving shaft, one end of the first driving rod is connected to the first receiving shaft, and the other end of the first driving rod is provided with a first rotating shaft;

[0021] A rocker, one end of which is connected to one end of the crossbar and the other end of which is provided with a second rotating shaft; and

[0022] The second connecting rod has one end hinged to the first rotating shaft ball on the first driving rod, and the other end hinged to the second rotating shaft ball on the rocking arm.

[0023] In a possible implementation of the high-voltage disconnector with a grounding knife provided by the utility model, two first long holes are opened on the first driving rod along the length direction, and the extension direction of the first long hole is parallel to the length direction of the first driving rod. Two first adjusting bolts are provided on the top of the first receiving shaft, and the two first adjusting bolts respectively pass through the two first long holes and are connected to the first receiving shaft to fix the first driving rod on the first receiving shaft. The first adjusting bolt has the freedom to move in the first long hole along the long extension direction.

[0024] In a possible implementation of the high-voltage disconnector with grounding knife provided by the utility model, a second transmission mechanism is also included, and the second transmission mechanism includes:

[0025] A second mounting plate, disposed on the other side of the base and connected to the base;

[0026] A second receiving shaft is rotatably connected to the second mounting plate and has the freedom to rotate around its own axis. The axis of the second receiving shaft is spaced a preset distance from the base and is used to be coaxially connected to the transmission shaft of the first driving mechanism;

[0027] A second driving rod is connected to the second receiving shaft, one end of the second driving rod is connected to the second receiving shaft, and the other end of the second driving rod is provided with a first rotating shaft; and

[0028] A third connecting rod, one end of which is rotatably connected to the first rotating shaft on the second driving rod, and the other end of which is rotatably connected to the active insulator;

[0029] When the second receiving shaft rotates at a preset angle, the active insulator is driven to rotate 90°.

[0030] In a possible implementation of the high-voltage disconnector with an earthing knife provided by the utility model, two second long holes are provided on the second driving rod along the length direction, and the extension direction of the second long hole is parallel to the length direction of the second driving rod. Two second adjusting bolts are provided on the top of the receiving shaft, and the two second adjusting bolts respectively pass through the two second long holes and are connected to the receiving shaft to fix the second driving rod on the receiving shaft, and the second adjusting bolt has the freedom to move in the second long hole along the long extension direction.

[0031] In a possible implementation of the high-voltage disconnector with grounding knife provided by the utility model, the first connecting rod, the second connecting rod and the third connecting rod each include two screws and a threaded sleeve, the two screws are coaxial and spaced apart, and nuts are provided on the screws, and the threads on the two screws have opposite rotation directions; the threaded sleeve is provided between the nuts on the two screws and cooperates with the threads of the two screws.

[0032] In a possible implementation of the high-voltage disconnector with a grounding knife provided by the utility model, the threaded sleeve is in a polygonal columnar structure.

[0033] In a possible implementation of the high-voltage disconnector with grounding knife provided by the utility model, the first contact includes:

[0034] A first mounting seat connected to the active insulator;

[0035] Two conductive clamping plates are arranged in parallel and at intervals, one end of the two conductive clamping plates is connected to the first mounting seat, and the other ends of the two conductive clamping plates are opened outward in a V shape;

[0036] The second contact comprises:

[0037] A second mounting seat connected to the driven insulator;

[0038] A conductive support plate, one end of which is connected to the second mounting seat, and the other end of which is a conductive column, wherein the conductive column is suitable for being placed between the two conductive clamping plates and in contact with the two conductive clamping plates;

[0039] The first mounting seat is conductively connected to the conductive clamping plate, and the second mounting seat is conductively connected to the conductive support plate.

[0040] In a possible implementation of the high-voltage disconnector with grounding knife provided by the utility model, the first contact further includes:

[0041] A fixing block, provided on the two conductive clamping plate brackets and connected to the conductive clamping plate; and

[0042] Two V-shaped plates are respectively arranged on the outside of the two conductive clamps, and one end is fixed to the position of the fixed block on the conductive clamp by a fastening bolt, and the fastening bolt passes through the V-shaped plate and the conductive clamp and is connected to the fixed block; the other end of the V-shaped plate abuts against the conductive clamp on the side of the fixed block facing the second contact and squeezes the conductive clamp inward.

[0043] The beneficial effects of the high-voltage disconnector with an earthing knife provided by the utility model are as follows: compared with the prior art, in the high-voltage disconnector with an earthing knife provided by the utility model, the active insulator and the driven insulator are both rotatably connected to the base, and the active insulator and the driven insulator are synchronously rotated in the same direction through the first connecting rod; a contact finger and a first limit plate are arranged on the active insulator or the driven insulator, and a second limit plate is arranged on the horizontal bar of the earthing rod, and in the closed state, the first limit plate limits the rotation of the second limit plate, effectively avoiding that in the closed state, the earthing rod rotates upward and contacts the first contact or the second contact, resulting in a leakage accident; in the open state and the earthing rod contacts the contact finger, the second limit plate limits the rotation of the first limit plate, effectively avoiding that in the state where the vertical rod contacts the contact finger, the active insulator is driven to rotate due to incorrect operation, resulting in damage to the conductive parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 A schematic diagram of the three-dimensional structure of a high-voltage disconnector with a grounding knife provided in an embodiment of the utility model Figure 1 ;

[0045] Figure 2 A schematic diagram of the three-dimensional structure of a high-voltage disconnector with a grounding knife provided in an embodiment of the utility model Figure 2 ;

[0046] Figure 3 A schematic diagram of the three-dimensional structure of the first connecting rod, the second connecting rod or the third connecting rod in the high-voltage disconnector with a grounding knife provided in an embodiment of the utility model;

[0047] Description of reference numerals:

[0048] 10. base; 20. active insulator; 21. first mounting seat; 22. conductive clamping plate;

[0049] 23. Fixed block; 24. V-shaped plate; 30. Driven insulator; 31. Second mounting seat;

[0050] 32. Conductive support plate; 33. Conductive column; 34. Conductive plate; 35. First limiting plate;

[0051] 40. first connecting rod; 41. screw rod; 42. threaded sleeve; 43. nut;

[0052] 51. first mounting plate; 52. first receiving shaft; 53. first adjusting bolt; 54. first driving rod;

[0053] 55, second connecting rod; 56, rocker; 61, crossbar; 62, vertical rod; 63, second limit plate;

[0054] 71. second mounting plate; 72. second receiving shaft; 73. second adjusting bolt; 74. second driving rod;

[0055] 75. Third connecting rod. DETAILED DESCRIPTION

[0056] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0057] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0058] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0059] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0060] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0061] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, and the spatially relative descriptions used here are interpreted accordingly.

[0062] In addition, it should be noted that the use of words such as "first" and "first" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0063] Please also read Figures 1 to 3Now, the high-voltage disconnector with grounding knife provided by the utility model is described. The high-voltage disconnector with grounding knife comprises a base 10, an active insulator 20, a driven insulator 30, a first connecting rod 40, a contact finger, a grounding rod, a first limit plate 35 and a second limit plate 63. The base 10 is suitable for being installed on the cross arm of a pole; the active insulator 20 is connected to the base 10 and rotatably cooperates with the base 10. The active insulator 20 is suitable for being connected to the power output end of the first driving mechanism; a first contact is provided on the active insulator 20; the driven insulator 30 is spaced apart on one side of the active insulator 20, connected to the base 10, and rotatably cooperates with the base 10; a second contact is provided on the driven insulator 30; the two ends of the first connecting rod 40 are rotatably cooperated with the active insulator 20 and the driven insulator 30 respectively, so that when the active insulator 20 and the driven insulator 30 rotate, they rotate synchronously in opposite directions. , so that the first contact and the second contact are in contact or disconnected; the contact finger is connected to the first contact or the second contact and conducts electricity; the grounding rod includes a cross bar 61 and a vertical rod 62, the cross bar 61 is rotatably connected to the base 10, and is suitable for being connected to the power output end of the second driving mechanism; the lower end of the vertical rod 62 is connected to the cross bar 61, and the vertical rod 62 has the freedom to rotate in a vertical plane with the cross bar 61 as the axis, and in the open state, the upper end of the vertical rod 62 is suitable for contacting the contact finger, and the vertical rod 62 is suitable for grounding setting; the first limit plate 35 is connected to the active insulator 20 or the driven insulator 30; the second limit plate 63 is connected to the cross bar 61, and in the closed state, the first limit plate 35 limits the second limit plate 63 from rotating upward; in the open state, the vertical rod 62 contacts the contact finger, and the second limit plate 63 limits the first limit plate 35 from rotating.

[0064] When opening the switch, the active insulator and the driven insulator rotate 90° in the synchronous direction, and the grounding rod rotates upward. When it contacts the contact finger, the second limit plate reaches the end of the first limit plate, limiting the rotation and reset of the active insulator and the driven insulator.

[0065] Specifically, the contact finger and the grounding rod are both copper parts with good conductivity but poor strength; the first limit plate 35 and the second limit plate 63 are iron parts with higher strength. When the grounding rod is in contact with the contact finger, the second limit plate 63 on the cross bar 61 of the grounding rod is placed on the end face of the first limit plate 35 in the rotation direction, limiting the rotation of the first limit plate 35, and further limiting the rotation of the insulating terminal connected to the first limit plate 35, to avoid driving the insulating terminal to rotate due to incorrect operation when the grounding rod is in contact with the contact finger, causing damage and deformation of the grounding rod or the contact finger.

[0066] It should be noted that, according to different actual working conditions, the active insulator 20 and the driven insulator 30 are charged differently, and the contact finger and the first limit plate 35 are both connected to the charged insulator; in actual working conditions, the active insulator 20 is transmission-connected to the external first drive mechanism, and rotates under the drive of the first drive mechanism to achieve closing or opening. The horizontal bar of the grounding rod is transmission-connected to the external second drive mechanism, and is used to rotate under the drive of the second drive mechanism to make the vertical bar 62 of the grounding rod contact or separate from the contact finger.

[0067] The beneficial effects of the high-voltage disconnector with grounding knife provided by the embodiment of the utility model are as follows: compared with the prior art, in the high-voltage disconnector with grounding knife provided by the embodiment of the utility model, the active insulator 20 and the driven insulator 30 are both rotatably connected to the base 10, and the active insulator 20 and the driven insulator 30 are synchronously rotated in the same direction through the first connecting rod 40; a contact finger and a first limit plate 35 are provided on the active insulator 20 or the driven insulator 30, and a second limit plate 63 is provided on the horizontal bar of the grounding rod, and in the closed state, the first limit plate 35 limits the rotation of the second limit plate 63, effectively avoiding that in the closed state, the grounding rod rotates upward and contacts with the first contact or the second contact, resulting in leakage accidents; in the open state and the grounding rod contacts with the contact finger, the second limit plate 63 limits the rotation of the first limit plate 35, effectively avoiding that when the vertical rod 62 contacts with the contact finger, the active insulator 20 is driven to rotate due to incorrect operation, resulting in damage to the conductive parts.

[0068] like Figure 1 and Figure 2 As shown, in a specific implementation of a high-voltage disconnector with a grounding knife provided in an embodiment of the utility model, the contact finger includes two conductive plates 34, the two conductive plates 34 are arranged at intervals, one end is connected to the second contact or the first contact, and the vertical rod 62 is suitable for being clamped between the two conductive plates 34.

[0069] Specifically, the other ends of the two conductive plates 34 are tilted outwards to facilitate the vertical rod 62 of the grounding rod to be inserted between the two conductive plates 34 .

[0070] like Figure 1 and Figure 2As shown, in a specific implementation of the high-voltage disconnector with grounding knife provided in an embodiment of the utility model, it also includes a first transmission mechanism, which includes a first mounting plate 51, a first receiving shaft 52, a first driving rod 54, a rocker 56 and a second connecting rod 55. The first mounting plate 51 is arranged on one side of the base 10 and is connected to the base 10; the first receiving shaft 52 is vertically arranged and rotatably connected to the mounting plate, and has the freedom to rotate around its own axis. The first receiving shaft 52 is used to be coaxially connected to the transmission shaft of the first driving mechanism; the first driving rod 54 is connected to the first receiving shaft 52, one end of which is connected to the first receiving shaft 52, and the other end is provided with a first rotating shaft; one end of the rocker 56 is connected to one end of the cross bar 61, and the other end is provided with a second rotating shaft; one end of the second connecting rod 55 is hinged to the first rotating shaft ball on the first driving rod 54, and the other end is hinged to the second rotating shaft ball on the rocker 56.

[0071] It should be noted that the first receiving shaft 52 is used to connect to the external first driving mechanism. The first driving mechanism drives the first receiving shaft 52 to rotate, and the first receiving shaft 52 drives the first driving rod 54 to rotate, and then drives the rocker 56 to swing through the second connecting rod 55, and finally drives the grounding rod to rotate with the cross bar 61 as the axis.

[0072] like Figure 1 and Figure 2 As shown, in a specific implementation manner of a high-voltage disconnector with a grounding knife provided in an embodiment of the utility model, two first long holes are provided on the first driving rod 54 along the length direction, and the extension direction of the first long hole is parallel to the length direction of the first driving rod 54. Two first adjusting bolts 53 are provided on the top of the first receiving shaft 52. The two first adjusting bolts 53 pass through the two first long holes respectively and are connected to the first receiving shaft 52 to fix the first driving rod 54 on the first receiving shaft 52. The first adjusting bolt 53 has the freedom to move in the first long hole along the extension direction of the first long hole. During installation and debugging, the equivalent length of the first driving rod 54 is adjusted, that is, the length between the axis of the first receiving shaft 52 and the axis of the first rotating shaft.

[0073] like Figure 1 and Figure 2As shown, in a specific implementation of the high-voltage disconnector with a grounding knife provided in an embodiment of the utility model, a second transmission mechanism is also included, and the second transmission mechanism includes a second mounting plate 71, a second receiving shaft 72, a second driving rod 74 and a third connecting rod 75. The second mounting plate 71 is arranged on the other side of the base 10 and is connected to the base 10; the second receiving shaft 72 is rotatably connected to the second mounting plate 71 and has the freedom to rotate around its own axis. The axis of the second receiving shaft 72 is spaced a preset distance from the base 10 and is used to be coaxially connected to the transmission shaft of the first driving mechanism; the second driving rod 74 is connected to the second receiving shaft 72, one end of which is connected to the second receiving shaft 72, and the other end is provided with a first rotating shaft; one end of the third connecting rod 75 is rotatably connected to the first rotating shaft on the second driving rod 74, and the other end is rotatably connected to the active insulator 20.

[0074] When the second receiving shaft 72 rotates through a preset angle, the active insulator 20 is driven to rotate 90°.

[0075] Specifically, when the second receiving shaft 72 rotates 180°, the active insulator 20 is driven to rotate 90°.

[0076] It should be noted that the second receiving shaft 72 is used to be connected to the external second driving mechanism, rotates under the drive of the second driving mechanism, and drives the second driving rod 74 to rotate around the second receiving shaft 72. The second driving rod 74 drives the active insulator 20 to rotate through the third connecting rod 75.

[0077] like Figure 1 and Figure 2 As shown, in a specific implementation of a high-voltage disconnector with a grounding knife provided in an embodiment of the utility model, two second long holes are provided on the second driving rod 74 along the length direction, and the extension direction of the second long hole is parallel to the length direction of the second driving rod 74. Two second adjusting bolts 73 are provided on the top of the receiving shaft, and the two second adjusting bolts 73 respectively pass through the two second long holes and are connected to the receiving shaft to fix the second driving rod 74 on the receiving shaft. The second adjusting bolts 73 have the freedom to move in the second long hole along the long extension direction.

[0078] It should be noted that by loosening the second adjusting bolt 73, moving the second driving rod 74 along the length direction of the second driving rod 74, and then tightening the second adjusting bolt 73, the distance between the connection position between the second driving rod 74 and the third connecting rod 75 and the second receiving shaft 72 can be adjusted, thereby adjusting the relationship between the rotation angle of the second receiving shaft 72 and the rotation angle of the active insulator 20.

[0079] like Figure 3As shown, in a specific implementation of a high-voltage disconnector with a grounding knife provided in an embodiment of the utility model, the first connecting rod 40, the second connecting rod 55 and the third connecting rod 75 each include two screws 41 and a threaded sleeve 42, the two screws 41 are coaxial and spaced apart, and nuts 43 are provided on the screws 41, and the threads on the two screws 41 have opposite rotation directions; the threaded sleeve 42 is provided between the nuts 43 on the two screws 41 and is threadably matched with the two screws 41.

[0080] It should be noted that by rotating the two nuts 43 to keep them away from the threaded sleeve 42, and then rotating the threaded sleeve 42 forward or reversely, the total length of the first connecting rod 40 or the second connecting rod 55 can be adjusted. Then, by rotating the two nuts 43 in the reverse direction to make them press against both ends of the threaded sleeve 42, the threaded sleeve 42 can be locked to prevent the threaded sleeve 42 from rotating, thereby locking the total length of the first connecting rod 40 or the second connecting rod 55.

[0081] Specifically, Figure 1 and Figure 2 As shown, in a specific implementation of the high-voltage disconnector with a grounding knife provided in an embodiment of the utility model, the threaded sleeve 42 is in a polygonal columnar structure to facilitate the rotation of the threaded sleeve 42.

[0082] like Figure 1 and Figure 2 As shown, in a specific implementation manner of a high-voltage disconnector with a grounding knife provided in an embodiment of the utility model, the first contact includes a first mounting seat 21 and two conductive clamping plates 22, the first mounting seat 21 is connected to the active insulator 20; the two conductive clamping plates 22 are parallel and spaced apart, one end of the two conductive clamping plates 22 is connected to the first mounting seat 21, and the other ends of the two conductive clamping plates 22 are opened outward in a V shape.

[0083] The second contact includes a second mounting seat 31 and a conductive support plate 32. The second mounting seat 31 is connected to the driven insulator 30. One end of the conductive support plate 32 is connected to the second mounting seat 31, and the other end is a conductive column 33. The conductive column 33 is suitable for being placed between the two conductive clamping plates 22 and in contact with the two conductive clamping plates 22.

[0084] The first mounting seat 21 is electrically connected to the conductive clamping plate 22 , and the second mounting seat 31 is electrically connected to the conductive support plate 32 .

[0085] It should be noted that the other ends of the two conductive clamping plates 22 are opened outward in a V-shape, so that the conductive pillar 33 on the second contact can enter between the two conductive clamping plates 22 .

[0086] like Figure 1 and Figure 2As shown, in a specific implementation of the high-voltage disconnector with a grounding knife provided in an embodiment of the utility model, the first contact also includes a fixed block 23 and two V-shaped plates 24, the fixed block 23 is arranged on two conductive clamping plate 22 brackets and is connected to the conductive clamping plate 22; the two V-shaped plates 24 are respectively arranged on the outer sides of the two conductive clamping plates 22, and one end is fixed to the position of the fixed block 23 on the conductive clamping plate 22 by fastening bolts, and the fastening bolts pass through the V-shaped plate 24 and the conductive clamping plate 22 and are connected to the fixed block 23; the other end of the V-shaped plate 24 abuts against the conductive clamping plate 22 on the side of the fixed block 23 facing the second contact, and squeezes the conductive clamping plate 22 inward.

[0087] It should be noted that the two V-shaped plates 24 squeeze the two conductive clamps 22 to bend inward, so that the conductive pillars 33 on the conductive plate 34 enter between the two conductive clamps 22. There is a certain pressure between the conductive clamps 22 and the conductive pillars 33 to avoid virtual connection and ensure a good conductive effect.

[0088] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high voltage disconnect switch with a grounding knife, characterized in that: include: A base suitable for mounting on a cross arm of a utility pole; An active insulator is connected to the base and rotatably cooperates with the base, and the active insulator is suitable for being connected to the power output end of the first driving mechanism; the active insulator is provided with a first contact; A driven insulator is arranged at a distance on one side of the active insulator, connected to the base, and rotatably matched with the base; a second contact is provided on the driven insulator; A first connecting rod, both ends of which are respectively rotatably matched with the active insulator and the driven insulator, so that when the active insulator and the driven insulator rotate, they rotate synchronously in opposite directions, thereby making the first contact and the second contact contact or disconnect; A contact finger, connected to the first contact or the second contact and electrically connected; A grounding rod, comprising a crossbar and a vertical rod, wherein the crossbar is rotatably connected to the base and is suitable for being connected to the power output end of the second driving mechanism; the lower end of the vertical rod is connected to the crossbar, the vertical rod has the freedom to rotate in a vertical plane with the crossbar as the axis, and in the gate-opening state, the upper end of the vertical rod is suitable for contacting the contact finger, and the vertical rod is suitable for grounding; A first limiting plate connected to the active insulator or the driven insulator; as well as The second limit plate is connected to the cross bar. In the closed state, the first limit plate limits the second limit plate from rotating upward. In the open state, the vertical bar contacts the contact finger, and the second limit plate limits the first limit plate from rotating.

2. The high-voltage disconnect switch with grounding knife according to claim 1, characterized in that: The contact finger comprises two conductive plates, which are spaced apart and one end of which is connected to the second contact or the first contact. The vertical rod is suitable for being sandwiched between the two conductive plates.

3. The high-voltage disconnector with grounding knife according to claim 1, characterized in that: Also included is a first transmission mechanism, the first transmission mechanism comprising: A first mounting plate, disposed on one side of the base and connected to the base; A first receiving shaft, which is arranged vertically, is rotatably connected to the mounting plate and has the freedom to rotate around its own axis, and the first receiving shaft is used to be coaxially connected to the transmission shaft of the first driving mechanism; A first driving rod is connected to the first receiving shaft, one end of the first driving rod is connected to the first receiving shaft, and the other end of the first driving rod is provided with a first rotating shaft; A rocker, one end of which is connected to one end of the crossbar and the other end of which is provided with a second rotating shaft; and The second connecting rod has one end hinged to the first rotating shaft ball on the first driving rod, and the other end hinged to the second rotating shaft ball on the rocking arm.

4. The high-voltage disconnector with grounding knife according to claim 3, characterized in that: Two first long holes are provided on the first driving rod along the length direction, and the extension direction of the first long holes is parallel to the length direction of the first driving rod. Two first adjusting bolts are provided on the top of the first receiving shaft, and the two first adjusting bolts respectively pass through the two first long holes and are connected to the first receiving shaft to fix the first driving rod on the first receiving shaft. The first adjusting bolt has the freedom to move in the first long hole along the length extension direction.

5. The high-voltage disconnector with grounding knife according to claim 3, characterized in that: Also included is a second transmission mechanism, the second transmission mechanism comprising: A second mounting plate, disposed on the other side of the base and connected to the base; A second receiving shaft is rotatably connected to the second mounting plate and has the freedom to rotate around its own axis. The axis of the second receiving shaft is spaced a preset distance from the base and is used to be coaxially connected to the transmission shaft of the first driving mechanism; A second driving rod is connected to the second receiving shaft, one end of the second driving rod is connected to the second receiving shaft, and the other end of the second driving rod is provided with a first rotating shaft; and A third connecting rod, one end of which is rotatably connected to the first rotating shaft on the second driving rod, and the other end of which is rotatably connected to the active insulator; When the second receiving shaft rotates at a preset angle, the active insulator is driven to rotate 90°.

6. The high-voltage disconnector with grounding knife according to claim 5, characterized in that: Two second long holes are provided on the second driving rod along the length direction, and the extension direction of the second long holes is parallel to the length direction of the second driving rod. Two second adjusting bolts are provided on the top of the receiving shaft, and the two second adjusting bolts respectively pass through the two second long holes and are connected to the receiving shaft to fix the second driving rod on the receiving shaft, and the second adjusting bolt has the freedom to move in the second long hole along the length extension direction.

7. The high-voltage disconnector with grounding knife according to claim 6, characterized in that: The first connecting rod, the second connecting rod and the third connecting rod each include two screws and a threaded sleeve. The two screws are coaxial and spaced apart. Nuts are provided on the screws. The threads on the two screws have opposite rotation directions. The threaded sleeve is provided between the nuts on the two screws and cooperates with the threads of the two screws.

8. The high-voltage disconnector with grounding knife according to claim 7, characterized in that: The threaded sleeve is in a polygonal columnar structure.

9. The high-voltage disconnect switch with grounding knife according to claim 1, characterized in that: The first contact comprises: A first mounting seat connected to the active insulator; Two conductive clamping plates are arranged in parallel and at intervals, one end of the two conductive clamping plates is connected to the first mounting seat, and the other ends of the two conductive clamping plates are opened outward in a V shape; The second contact comprises: A second mounting seat connected to the driven insulator; A conductive support plate, one end of which is connected to the second mounting seat, and the other end of which is a conductive column, wherein the conductive column is suitable for being placed between the two conductive clamping plates and in contact with the two conductive clamping plates; The first mounting seat is conductively connected to the conductive clamping plate, and the second mounting seat is conductively connected to the conductive support plate.

10. The high-voltage disconnector with grounding knife according to claim 9, characterized in that: The first contact further comprises: A fixing block, provided on the two conductive clamping plate brackets and connected to the conductive clamping plate; and Two V-shaped plates are respectively arranged on the outside of the two conductive clamps, and one end is fixed to the position of the fixed block on the conductive clamp by a fastening bolt, and the fastening bolt passes through the V-shaped plate and the conductive clamp and is connected to the fixed block; the other end of the V-shaped plate abuts against the conductive clamp on the side of the fixed block facing the second contact and squeezes the conductive clamp inward.

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