10kV outdoor insulation high-voltage isolation switch and operation method thereof

Abstract

The invention discloses a 10kV outdoor insulation high-voltage isolation switch and an operation method thereof. The 10kV outdoor insulation high-voltage isolation switch comprises at least one phase of contact unit, each phase of contact unit comprises a support, a moving contact assembly, a first static contact assembly, a second static contact assembly and a shell, the lower end of the support is arranged in the shell in a penetrating mode, a rotatable insulation main shaft is arranged at the lower end of the support in a penetrating mode, and a pull rod is arranged on the insulation main shaft. The insulating main shaft is sleeved with the moving contact assembly, the first static contact assembly and the second static contact assembly are arranged in the shell in a penetrating mode, the first static contact assembly and the second static contact assembly are arranged on the two sides of the insulating main shaft respectively, the first static contact assembly and the second static contact assembly are connected with the support, and the lower end of the shell is provided with a flexible insulating lower cover; wherein the pull rod can rotate to drive the insulating main shaft to rotate so as to drive the moving contact assembly to rotate, and the flexible insulating lower cover can retract or expand outwards. The operation method of the 10kV outdoor insulation high-voltage isolation switch is based on the 10kV outdoor insulation high-voltage isolation switch.

Description

Technical Field

[0001] The present invention relates to the technical field of disconnectors, and in particular to a 10kV outdoor insulated high-voltage disconnector and an operating method thereof. Background Art

[0002] The high-voltage disconnector (hereinafter referred to as the knife switch) is a traditional and important switching device without arc extinguishing function in the 10kV distribution network. Its main function is to isolate the electrical equipment that needs to be repaired from the live area of ​​the power grid, so that there is an obvious disconnection point between the electrical equipment to be repaired and the live area of ​​the power grid to ensure the safety of the maintenance work; at the same time, it also undertakes the task of changing the operating mode to perform switching operations, as well as connecting and disconnecting small current circuits.

[0003] However, the existing technology still has some significant defects and deficiencies. The first problem is that the external insulation is easily affected by external conditions. The knife switch is completely exposed to the atmosphere and is easily affected by dirt, moisture, insect pests, foreign objects (such as birds, branches, plastic bags and kites blown by the wind that land on the knife switch), etc., which can easily lead to grounding or short circuit faults; secondly, the rust problem cannot be ignored. The knife switch is exposed to the atmosphere for a long time, especially under the influence of rain and humid climate, the moving and static contacts are prone to rust, which not only damages its conductive performance, but also affects the smoothness of the opening and closing operations. At the same time, the rust problem of the connecting bolts also brings inconvenience to the replacement work; furthermore, when operating the knife switch, after the operator uses the operating lever to pull the knife switch open, due to the lack of a limiting mechanism, the position of the moving contact of the knife switch cannot be effectively fixed, which is very easy to cause problems. Summary of the invention

[0004] The object of the present invention is to provide an outdoor insulated high-voltage disconnector and an operating method thereof, so as to solve at least one of the problems mentioned in the above background technology, namely, the exposed knife switch is easily affected by external conditions, the rust affects the conductive performance and the smoothness of operation, and the moving contact position cannot be fixed during operation.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: A 10kV outdoor insulated high-voltage disconnector, comprising: At least one phase contact unit, each phase of the contact unit comprises a bracket, a moving contact assembly, a first static contact assembly, a second static contact assembly and a shell, the lower end of the bracket is inserted into the shell, a rotatable insulating main shaft is inserted into the lower end of the bracket, a pull rod is provided on the insulating main shaft, the moving contact assembly is sleeved on the insulating main shaft, the first static contact assembly and the second static contact assembly are both inserted into the shell, the first static contact assembly and the second static contact assembly are respectively provided on both sides of the insulating main shaft, the first static contact assembly and the second static contact assembly are both connected to the bracket, and a flexible insulating lower cover is provided at the lower end of the shell; Among them, the pull rod can rotate to drive the insulating main shaft to rotate and then drive the moving contact assembly to rotate, so that the moving contact assembly can synchronously engage or separate with the first static contact assembly and the second static contact assembly. When the moving contact assembly rotates to separate from or abut against the flexible insulating lower cover, the flexible insulating lower cover can retract or expand outward.

[0006] Optionally, the outer shell includes an upper cover, a side shell, a bottom shell and at least two flexible insulating sheets, the upper cover is arranged on the middle part of the bracket, the lower end of the upper cover is connected to the upper end of the side shell, the side shell is wrapped around the lower end of the bracket, the side shell is provided with an external end of the first static contact assembly and an external end of the second static contact assembly, the flexible insulating sheets are all arranged at the lower end of the side shell, the flexible insulating sheets are stacked to form the flexible insulating lower cover, the bottom shell and the flexible insulating lower cover are symmetrically arranged at the lower end of the side shell, and a gap is provided between the bottom shell and the flexible insulating lower cover.

[0007] Optionally, the bracket includes a first lifting bracket, a second lifting bracket and a connecting bracket, the first lifting bracket and the second lifting bracket are symmetrically arranged on opposite side walls of the connecting bracket, the first lifting bracket and the second lifting bracket are passed through the outer shell, the connecting bracket is arranged in the outer shell, the lower end of the connecting bracket is provided with the rotatable insulating main shaft, and the connecting bracket is connected to both the first static contact assembly and the second static contact assembly.

[0008] Optionally, the moving contact assembly includes a first copper bar, a second copper bar, a first bolt, a second bolt, a third bolt and a fourth bolt, the first copper bar and the second copper bar are parallelly and spaced apart and sleeved on the insulating main shaft, the first bolt and the second bolt are spaced apart and passed through one end of the first copper bar and the second copper bar to form a first clamping gap, the first static contact assembly is passed through the first clamping gap, the third bolt and the fourth bolt are spaced apart and passed through the other end of the first copper bar and the second copper bar to form a second clamping gap, the second static contact assembly is passed through the second clamping gap.

[0009] Optionally, a square hole is provided in the middle of the first copper bar and the middle of the second copper bar, a first square column and a second square column arranged at intervals are provided on the insulating main shaft, the first copper bar is sleeved on the first square column through the square hole, and the second copper bar is sleeved on the second square column through the square hole, a fifth bolt and a sixth bolt are passed through the first copper bar and the second copper bar, and the fifth bolt and the sixth bolt are respectively arranged on both sides of the square hole, and a third clamping gap for clamping the insulating rotating shaft is provided between the first copper bar, the second copper bar, the fifth bolt and the sixth bolt.

[0010] Optionally, the middle parts of the first bolt, the second bolt, the third bolt and the fourth bolt are all passed through the first copper bar and the second copper bar, and the first spring, the first spring washer and the second spring washer are sleeved on both ends of the screw rods of the first bolt, the second bolt, the third bolt and the fourth bolt, one end of the first spring is connected to the first spring washer, and the other end of the first spring is connected to the second spring washer.

[0011] Optionally, the first stationary contact assembly and the second stationary contact assembly both include an insulator string, an insulating cover and a stationary contact, the upper end of the insulator string is connected to the bracket, the lower end of the insulator string is connected to the middle part of the stationary contact, the external end of the stationary contact is passed through the outer shell, the insulating cover is sleeved on the external end of the stationary contact, the insulating cover is connected to the outer shell, a stationary contact piece is provided on the contact end of the stationary contact, the stationary contact pieces are parallel to the first copper bar and the second copper bar, the stationary contact piece on the first stationary contact assembly is passed through the first clamping gap, and the stationary contact piece on the second stationary contact assembly is passed through the second clamping gap.

[0012] Optionally, it also includes a back-stop assembly, which includes a guide rod, a second spring and a guide rod sleeve, one end of the guide rod is rotatably connected to the bracket, the other end of the guide rod and the second spring are both inserted into one end of the guide rod sleeve, one end of the second spring abuts against the other end of the guide rod, the other end of the second spring abuts against the guide rod sleeve, and the other end of the guide rod sleeve is rotatably connected to the pull rod.

[0013] Optionally, it also includes at least one group of signboards and pointers, wherein the signboard is arranged on the outer shell, the signboard is provided with a separation and combination sign, the signboard is penetrated by the rotatable insulating main shaft, the pointer is arranged on the insulating main shaft, the pointer is arranged on the side of the signboard away from the outer shell, and the pointer is adapted to the separation and combination sign.

[0014] A method for operating a 10kV outdoor insulated high-voltage disconnector, based on the 10kV outdoor insulated high-voltage disconnector provided in any one of the above embodiments, comprising: Install the bracket on the component to be installed, and connect the incoming wire and the outgoing wire to the first stationary contact assembly and the second stationary contact assembly respectively; Pull the pull rod forward, the pull rod rotates to drive the insulating main shaft to rotate and then drives the moving contact assembly to rotate, so that the moving contact assembly is synchronously engaged with the first stationary contact assembly and the second stationary contact assembly; Pull the pull rod in the opposite direction, the pull rod rotates to drive the insulating main shaft to rotate and then drives the moving contact assembly to rotate, so that the moving contact assembly is synchronously separated from the first stationary contact assembly and the second stationary contact assembly; When the moving contact assembly rotates forward to separate from the flexible insulating lower cover, the flexible insulating lower cover retracts; when the moving contact assembly rotates to abut against the flexible insulating lower cover, the flexible insulating lower cover expands outward.

[0015] The beneficial effects of the present invention are as follows: the 10kV outdoor insulated high-voltage disconnector of the present invention solves the technical problems in the prior art that the exposed knife switch is easily affected by external conditions, the conductive performance and the smooth operation are affected by rust, and the position of the moving contact cannot be fixed during operation, and achieves the following beneficial effects: 1) The reasonable layout of the shell and the moving and static contact assemblies forms a semi-enclosed structure, which effectively isolates the influence of external dirt, moisture, pests and foreign objects on the inside of the knife switch, significantly improves the external insulation performance of the equipment, and reduces the risk of grounding or short-circuit failures. At the same time, it reduces the erosion of moisture and dirt on the contacts and connecting bolts, effectively delays the occurrence of rust, thereby maintaining good conductive performance and smooth operation; 2) The shell adopts the structure of an upper cover, a side shell, a bottom shell and a flexible insulating sheet. When the moving contact assembly rotates, the flexible insulating lower cover can automatically retract or expand outward, avoiding interference with the moving contact assembly, while ensuring the insulation performance of the equipment; 3) The rotation of the pull rod drives the rotation of the insulating main shaft and the moving contact assembly, thereby achieving The invention realizes the quick connection and separation of the moving contact assembly with the first and second static contact assemblies, which is easy and quick to operate and improves work efficiency; 4) The moving contact assembly adopts a double copper bar clamping design, and the use of springs and spring washers ensures stable contact with the static contact assembly, reduces contact resistance, and improves the reliability and stability of current transmission; 5) Through the stop assembly (such as the guide rod, the second spring and the guide rod sleeve), it ensures that the moving contact can stay stably in the specified position after the opening and closing operation, effectively preventing the pull rod from rotating by itself when not subject to external force, ensuring the stability and safety of the equipment; 6) The design of the signboard and pointer enables the operator to intuitively understand the opening and closing status of the disconnector, improving the convenience and accuracy of operation; 7) By comprehensively considering the protection of the external environment, the optimization of the internal structure, and the improvement of the convenience and safety of operation, the overall performance and life are significantly improved, and each component is easy to disassemble and replace, which reduces the maintenance cost and provides a strong guarantee for the stable operation of the power system.

[0016] The beneficial effects of the present invention are as follows: the operating method of the 10kV outdoor insulated high-voltage disconnector of the present invention solves the technical problems in the prior art that the exposed knife switch is easily affected by external conditions, the rust affects the conductive performance and the smoothness of operation, and the position of the moving contact cannot be fixed during operation, and achieves the following beneficial effects: 1) the moving contact assembly and the static contact assembly can be engaged or separated directly by pulling the pull rod, and the operation process is simple and clear, without the need for complicated tools and steps, thereby improving work efficiency; 2) when the moving contact assembly rotates, the flexible insulating lower cover can retract or expand accordingly, effectively shielding and protecting the moving contact assembly from external conditions such as dirt, moisture, pests and foreign objects, reducing the risk of grounding or short-circuit faults, and improving the operating reliability and safety of the disconnector; 3) by pulling the pull rod The direction and rotation status of the moving contact assembly can intuitively judge the closing or opening status of the disconnector, which is convenient for operators to monitor and manage; 4) Through the linkage design of the pull rod, insulating main shaft and moving contact assembly, precise control of the moving contact assembly during the engagement and separation process is achieved, ensuring that the moving contact assembly can be fully engaged and separated with the static contact assembly during operation, reducing local overheating and rust caused by poor contact. At the same time, it also reduces friction and wear during operation, extends the service life of the contacts, and reduces the impact of rust on conductive performance and operational smoothness; 5) The operation method is simple and the equipment design is reasonable, which can reduce the maintenance cost caused by improper operation or equipment failure. At the same time, it makes the various components of the equipment easy to disassemble and replace, further reducing the difficulty and cost of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings in the specification, which constitute a part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0018] Figure 1 is a three-dimensional diagram of a 10kV outdoor insulated high-voltage disconnector provided according to an embodiment of the present invention; Figure 2 is a front view of a partial structure of a 10kV outdoor insulated high-voltage disconnector provided according to an embodiment of the present invention; Figure 3 1. is a bottom view of a 10kV outdoor insulated high-voltage disconnector provided according to an embodiment of the present invention; Figure 4 is a three-dimensional diagram of a 10kV outdoor insulated high-voltage disconnector provided according to another embodiment of the present invention; Figure 5 is a three-dimensional diagram of a housing of a 10kV outdoor insulated high-voltage disconnector provided according to an embodiment of the present invention; Figure 6It is an assembly diagram of a part of the structure of a 10kV outdoor insulated high-voltage disconnector provided according to one embodiment of the present invention; Figure 7 This is an assembly diagram inside a housing of a 10kV outdoor insulated high-voltage disconnector provided according to one embodiment of the present invention; Figure 8 This is a three-dimensional diagram of a connection frame of a 10kV outdoor insulated high-voltage disconnector provided according to an embodiment of the present invention; Fig. 9 It is an assembly diagram of a part of the structure of a 10kV outdoor insulated high-voltage disconnector in a connected state according to an embodiment of the present invention; Fig.10 is a top view of a moving contact assembly of a 10kV outdoor insulated high-voltage disconnector provided according to an embodiment of the present invention; Fig.11 is a stereoscopic diagram of a moving contact assembly of a 10kV outdoor insulated high-voltage disconnector provided according to an embodiment of the present invention; Fig.12 is a stereoscopic diagram of an insulating main shaft of a 10kV outdoor insulating high-voltage disconnector provided according to an embodiment of the present invention; Fig.13 is a stereoscopic diagram of a static contact of a 10kV outdoor insulated high-voltage disconnector provided according to an embodiment of the present invention; Fig.14 is a three-dimensional diagram of an insulator string of a 10kV outdoor insulated high-voltage disconnector provided according to an embodiment of the present invention; Fig.15 This is a three-dimensional diagram of a stop assembly of a 10kV outdoor insulated high-voltage disconnector provided according to an embodiment of the present invention; Fig.16 It is an assembly diagram of a stop assembly of a 10kV outdoor insulated high-voltage disconnector provided according to one embodiment of the present invention; Among them, 1. bracket; 2. moving contact assembly; 3. first static contact assembly; 4. second static contact assembly; 5. shell; 6. stop assembly; 7. signboard; 8. pointer; 11. insulating main shaft; 12. pull rod; 13. first lifting frame; 14. second lifting frame; 15. connecting frame; 21. first copper bar; 22. second copper bar; 23. first bolt; 24. second bolt; 25. third bolt; 26. fourth bolt; 27. first spring; 28. first spring washer; 29. ​​second spring washer; 31. insulator string; 32. insulating cover; 33. static contact; 51. flexible insulating lower cover; 52. upper cover; 53. side shell; 54. bottom shell; 61. guide rod; 62. second spring; 63. guide rod sleeve; 111. first square column; 112. second square column; 331. static contact piece; 511. flexible insulating piece. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0020] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present invention.

[0021] Below, refer to Figure 1-16 A 10kV outdoor insulated high-voltage disconnector and an operating method thereof according to an embodiment of the present invention are specifically described.

[0022] The first embodiment of the present invention provides a 10kV outdoor insulated high-voltage disconnector, which is described in detail below with reference to the accompanying drawings.

[0023] like Figure 1-16As shown, a 10kV outdoor insulated high-voltage disconnector comprises at least one phase contact unit, wherein each phase contact unit comprises a bracket 1, a moving contact assembly 2, a first static contact assembly 3, a second static contact assembly 4 and a housing 5, wherein the lower end of the bracket 1 is inserted into the housing 5, a rotatable insulating main shaft 11 is inserted into the lower end of the bracket 1, a pull rod 12 is provided on the insulating main shaft 11, the moving contact assembly 2 is sleeved on the insulating main shaft 11, the first static contact assembly 3 and the second static contact assembly 4 are both inserted into the housing 5, and the first static contact assembly 3 and the second static contact assembly 4 are inserted into the housing 5. The head assemblies 4 are respectively arranged on both sides of the insulating main shaft 11, the first static contact assembly 3 and the second static contact assembly 4 are both connected to the bracket 1, and a flexible insulating lower cover 51 is provided at the lower end of the shell 5; wherein, the pull rod 12 can rotate to drive the insulating main shaft 11 to rotate and then drive the moving contact assembly 2 to rotate, so that the moving contact assembly 2 can synchronously engage or separate with the first static contact assembly 3 and the second static contact assembly 4, and when the moving contact assembly 2 rotates to separate from or abut against the flexible insulating lower cover 51, the flexible insulating lower cover 51 can retract or expand outward.

[0024] It should be noted that the bracket 1, as the basic supporting structure of the entire contact unit, can be connected to the housing 5 by fasteners (such as bolts, buckles, etc.) to ensure the stability and mechanical strength of the entire device; the material of the insulating main shaft 11 needs to have high insulation performance to ensure safe operation under high voltage environment; the moving contact assembly 2 is provided with a contact with good conductive performance, which is used to form an electrical connection with the static contact assembly; the first static contact assembly 3 and the second static contact assembly 4 are fixed contact points in the circuit. When the moving contact assembly 2 is rotated into place, it will be in contact with the moving contact assembly 2 contact, thereby establishing or disconnecting a circuit; the housing 5 is used to protect the internal components from environmental influences while providing necessary electrical isolation; the flexible insulating lower cover 51 can automatically retract or expand according to its position change when the moving contact assembly 2 rotates, so as to ensure good insulation performance and sealing when the moving contact assembly 2 is in contact or separated from the flexible insulating lower cover 51; for application scenarios requiring multi-phase operation, multi-phase contact units can be connected in parallel to simplify installation and occupy space. In this embodiment, preferably, when the 10kv outdoor transmission line is a three-phase transmission line, the number of the contact units is three. In order to effectively prevent the intrusion of external factors such as dust and moisture, improve the reliability and service life of the equipment, and at the same time reduce the space occupancy rate of the device, in this embodiment, preferably, the shell 5 includes an upper cover 52, a side shell 53, a bottom shell 54 and at least two flexible insulating sheets 511, the upper cover 52 is covered on the middle part of the bracket 1, the lower end of the upper cover 52 is connected to the upper end of the side shell 53, the side shell 53 is wrapped around the lower end of the bracket 1, the side shell 53 is pierced with the external end of the first static contact assembly 3 and the external end of the second static contact assembly 4, the flexible insulating sheets 511 are all arranged at the lower end of the side shell 53, the flexible insulating sheets 511 are stacked to form the flexible insulating lower cover 51, the bottom shell 54 and the flexible insulating lower cover 51 are symmetrically covered at the lower end of the side shell 53, and a gap is provided between the bottom shell 54 and the flexible insulating lower cover 51.

[0025] In order to ensure the stability and mechanical strength of the entire device, and at the same time, to be able to conveniently install the device at a designated location and facilitate subsequent maintenance and overhaul work, in the present embodiment, preferably, the bracket 1 includes a first lifting frame 13, a second lifting frame 14 and a connecting frame 15, the first lifting frame 13 and the second lifting frame 14 are symmetrically arranged on opposite side walls of the connecting frame 15, the first lifting frame 13 and the second lifting frame 14 are penetrated through the outer shell 5, the connecting frame 15 is arranged in the outer shell 5, the lower end of the connecting frame 15 is provided with the rotatable insulating main shaft 11, and the connecting frame 15 is connected to both the first static contact assembly 3 and the second static contact assembly 4.

[0026] In order to make the contact between the moving contact assembly 2 and the static contact assembly closer and further improve the conductive performance, in the present embodiment, preferably, the moving contact assembly 2 comprises a first copper bar 21, a second copper bar 22, a first bolt 23, a second bolt 24, a third bolt 25 and a fourth bolt 26, the first copper bar 21 and the second copper bar 22 are parallelly and spaced apart on the insulating main shaft 11, the first bolt 23 and the second bolt 24 are spaced apart and penetrated through one end of the first copper bar 21 and the second copper bar 22 to form a first clamping gap, the first static contact assembly 3 is penetrated in the first clamping gap, the third bolt 25 and the fourth bolt 26 are spaced apart and penetrated through the other end of the first copper bar 21 and the second copper bar 22 to form a second clamping gap, the second static contact assembly 4 is penetrated in the second clamping gap.

[0027] In order to make the connection between the moving contact assembly 2 and the insulating main shaft 11 more stable and improve the stability and reliability of the entire disconnector, in the present embodiment, preferably, a square hole is provided in the middle of the first copper bar 21 and the middle of the second copper bar 22, and a first square column 111 and a second square column 112 are provided on the insulating main shaft 11, and the first copper bar 21 is sleeved on the first square column 111 through the square hole, and the second copper bar 22 is sleeved on the second square column 112 through the square hole, and the first copper bar 21 and the second copper bar 22 are both penetrated by a fifth bolt and a sixth bolt, and the fifth bolt and the sixth bolt are respectively arranged on both sides of the square hole, and a third clamping gap for clamping the insulating rotating shaft is provided between the first copper bar 21, the second copper bar 22, the fifth bolt and the sixth bolt.

[0028] In order to ensure the clamping elasticity between the two copper bars and the current conducting capacity when clamping the static contact piece, in the present embodiment, preferably, the middle parts of the first bolt 23, the second bolt 24, the third bolt 25 and the fourth bolt 26 are all passed through the first copper bar 21 and the second copper bar 22, and the first spring 27, the first spring washer 28 and the second spring washer 29 are sleeved on both ends of the screw rods of the first bolt 23, the second bolt 24, the third bolt 25 and the fourth bolt 26, one end of the first spring 27 is connected to the first spring washer 28, and the other end of the first spring 27 is connected to the second spring washer 29.

[0029] In order to enhance the electrical insulation performance of the static contact assembly, ensure the safety of high-voltage current during transmission, and at the same time, ensure good conductive performance and contact reliability, in the present embodiment, preferably, the first static contact assembly 3 and the second static contact assembly 4 both include an insulator string 31, an insulating cover 32 and a static contact 33, the upper end of the insulator string 31 is connected to the bracket 1, the lower end of the insulator string 31 is connected to the middle of the static contact 33, the external end of the static contact 33 is penetrated on the shell 5, the insulating cover 32 is sleeved on the external end of the static contact 33, the insulating cover 32 is connected to the shell 5, a static contact piece 331 is provided on the contact end of the static contact 33, the static contact piece 331 is parallel to the first copper bar 21 and the second copper bar 22, the static contact piece 331 located on the first static contact assembly 3 is penetrated in the first clamping gap, and the static contact piece 331 located on the second static contact assembly 4 is penetrated in the second clamping gap.

[0030] In order to prevent the disconnector from accidentally opening or being damaged, improve its stability, and protect the safety of personnel and equipment, in the present embodiment, preferably, a backstop assembly 6 is also included, wherein the backstop assembly 6 includes a guide rod 61, a second spring 62, and a guide rod sleeve 63, one end of the guide rod 61 is rotatably connected to the bracket 1, the other end of the guide rod 61 and the second spring 62 are both inserted into one end of the guide rod sleeve 63, one end of the second spring 62 abuts against the other end of the guide rod 61, the other end of the second spring 62 abuts against the guide rod sleeve 63, and the other end of the guide rod sleeve 63 is rotatably connected to the pull rod 12.

[0031] In order to quickly determine the state of the isolating switch, thereby avoiding safety accidents such as misoperation or electric shock during operation, in the present embodiment, at least one set of signboard 7 and pointer 8 is also included, wherein the signboard 7 is arranged on the housing 5, and a separation and combination mark is arranged on the signboard 7, and a rotatable insulating main shaft 11 is passed through the signboard 7, and the pointer 8 is arranged on the insulating main shaft 11, and the pointer 8 is arranged on the side of the signboard 7 away from the housing 5, and the pointer 8 is adapted to the separation and combination mark.

[0032] Thus, beneficial effects are achieved: the reasonable layout of the shell 5 and the moving and static contact assemblies forms a semi-enclosed structure, which effectively isolates the influence of external dirt, moisture, pests and foreign objects on the inside of the knife switch, significantly improves the external insulation performance of the equipment, reduces the risk of grounding or short-circuit failures, and at the same time reduces the erosion of moisture and dirt on the contacts and connecting bolts, effectively delays the occurrence of rust, thereby maintaining good conductivity and smooth operation; the shell 5 adopts structures such as an upper cover 52, a side shell 53, a bottom shell 54 and a flexible insulating sheet 511. When the moving contact assembly 2 rotates, the flexible insulating lower cover 51 can automatically retract or expand outward, avoiding interference with the moving contact assembly 2, while ensuring the insulation performance of the equipment; the rotation of the pull rod 12 drives the rotation of the insulating main shaft 11 and the moving contact assembly 2, thereby realizing the rapid connection and separation of the moving contact assembly 2 and the first and second static contact assemblies 4, and the operation is simple and fast. Improved work efficiency; the moving contact assembly 2 adopts a double copper bar clamping design, combined with the use of springs and spring washers, to ensure stable contact with the static contact assembly, reduce contact resistance, and improve the reliability and stability of current transmission; through the stop assembly 6 (such as the guide rod 61, the second spring 62 and the guide rod sleeve 63), it is ensured that the moving contact can stably stay in the specified position after the opening and closing operation, effectively preventing the pull rod 12 from rotating on its own when not affected by external force, ensuring the stability and safety of the equipment; the design of the signboard 7 and the pointer 8 enables the operator to intuitively understand the opening and closing status of the disconnector, improving the convenience and accuracy of operation; by comprehensively considering the protection of the external environment, the optimization of the internal structure, and the improvement of the convenience and safety of operation, the overall performance and life are significantly improved, the various components are easy to disassemble and replace, and the maintenance cost is reduced, providing a strong guarantee for the stable operation of the power system.

[0033] like Figure 1-5As shown, in one embodiment, the housing 5 includes an upper cover 52, a side shell 53, a bottom shell 54 and at least two flexible insulating sheets 511, the upper cover 52 is covered on the middle part of the bracket 1, the lower end of the upper cover 52 is connected to the upper end of the side shell 53, the side shell 53 is wrapped around the lower end of the bracket 1, the side shell 53 is pierced with the external end of the first static contact assembly 3 and the external end of the second static contact assembly 4, the flexible insulating sheets 511 are all arranged at the lower end of the side shell 53, the flexible insulating sheets 511 are stacked to form the flexible insulating lower cover 51, the bottom shell 54 and the flexible insulating lower cover 51 are symmetrically covered at the lower end of the side shell 53, and a gap is provided between the bottom shell 54 and the flexible insulating lower cover 51. It should be noted that the bottom shell 54 is used to provide additional electrical isolation and environmental protection. In the present embodiment, preferably, one end of the moving contact assembly 2 close to the bottom shell 54 is located above the second static contact assembly 4, and one end of the moving contact assembly 2 close to the flexible insulating sheet 511 is located below the first static contact 33; in order to avoid external dirt, moisture, insect pests and accumulation of foreign matter, in the present embodiment, preferably, the upper end face of the upper cover 52 is an arc-shaped end face; in order to increase the waterproof performance of the outer shell 5, in the present embodiment, preferably, the circumferential outer wall of the upper cover 52 is provided with a protrusion to form a skirt; in order to be able to install the first static contact assembly 3 and the second static contact assembly 4, in the present embodiment, preferably, a accommodating cavity penetrating the upper and lower surfaces of the side shell 53 is provided in the side shell 53, and first through holes are provided on the opposite side walls of the side shell 53 and a second through hole; in order to ensure safe operation under high voltage environment, in this embodiment, the upper cover 52, the side shell 53 and the bottom shell 54 are all made of hard insulating material; the flexible insulating sheet 511 is a key component constituting the flexible insulating lower cover 51, and is made of soft insulating material. At least two of the flexible insulating sheets 511 are stacked and arranged at the lower end of the side shell 53 to form a flexible insulating lower cover 51 with certain elasticity and insulating properties. When the moving contact assembly 2 abuts against the flexible insulating lower cover 51, the stacking area between the flexible insulating sheets 511 can automatically shrink or expand according to its position change, so that the flexible insulating lower cover 51 retracts or expands outward, ensuring that the device maintains good insulation performance and sealing when the moving contact assembly 2 is in contact with or separated from the flexible insulating lower cover 51; the gap is used to observe whether the moving contact assembly 2 and the static contact assembly are engaged or separated. As a result, the entire device forms a relatively closed space inside, preventing the intrusion of external factors such as dust and moisture, improving the reliability and service life of the equipment, further enhancing the insulation performance of the equipment, and ensuring effective isolation between high-voltage current and the external environment. At the same time, when internal components need to be inspected and replaced, they can be easily disassembled and reinstalled, reducing maintenance difficulty and cost.

[0034] like Figure 6-8 As shown, in one embodiment, the bracket 1 includes a first lifting frame 13, a second lifting frame 14 and a connecting frame 15, the first lifting frame 13 and the second lifting frame 14 are symmetrically arranged on opposite side walls of the connecting frame 15, the first lifting frame 13 and the second lifting frame 14 are penetrated on the outer shell 5, the connecting frame 15 is arranged in the outer shell 5, the lower end of the connecting frame 15 is provided with the rotatable insulating main shaft 11, and the connecting frame 15 is connected to both the first static contact assembly 3 and the second static contact assembly 4. It should be noted that, in order to enable the first and second brackets 13 and 14 to be symmetrically arranged on the opposite side walls of the connecting frame 15, in the present embodiment, preferably, the housing 5 is provided with a first mounting hole and a second mounting hole; in order to be able to install the insulating main shaft 11, in the present embodiment, the connecting frame 15 includes a main board, a first connecting arm and a second connecting arm, the main board upper cover 52 is provided with the upper cover 52, the opposite side walls of the main board are provided with the first connecting arm and the second connecting arm, the lower ends of the first connecting arm and the second connecting arm are provided with an axial hole for installing the insulating main shaft 11, the first connecting arm is connected to the first bracket 13, and the second connecting arm is connected to the second bracket 14; thus, through the synergistic effect of the first bracket 13, the second bracket 14 and the connecting frame 15, the stability and mechanical strength of the entire device are ensured, so that the disconnector can resist the invasion of natural factors such as wind, rain, snow, etc. in harsh outdoor environments, and maintain long-term stable operation. At the same time, the entire device can be easily installed at a designated location, and is convenient for subsequent maintenance and overhaul work.

[0035] like Figure 9-12As shown, in one embodiment, the moving contact assembly 2 includes a first copper bar 21, a second copper bar 22, a first bolt 23, a second bolt 24, a third bolt 25 and a fourth bolt 26, the first copper bar 21 and the second copper bar 22 are parallelly and spaced apart on the insulating main shaft 11, the first bolt 23 and the second bolt 24 are spaced apart and penetrated through one end of the first copper bar 21 and the second copper bar 22 to form a first clamping gap, the first static contact assembly 3 is penetrated in the first clamping gap, the third bolt 25 and the fourth bolt 26 are spaced apart and penetrated through the other end of the first copper bar 21 and the second copper bar 22 to form a second clamping gap, the second static contact assembly 4 is penetrated in the second clamping gap. It should be noted that the first copper bar 21 and the second copper bar 22, as conductive components, have excellent conductive properties and can ensure stable transmission of high-voltage current; in order to facilitate the sleeve of the first copper bar 21 and the second copper bar 22 on the insulating main shaft 11, in the present embodiment, preferably, a polygonal connecting portion is provided on the insulating main shaft 11, and a polygonal mounting hole adapted to the polygonal connecting portion is provided on the first copper bar 21 and the second copper bar 22; by adjusting the tightness of the first bolt 23, the second bolt 24, the third bolt 25 and the fourth bolt 26, the size of the first clamping gap and the second clamping gap can be controlled, thereby ensuring good contact and conductive properties between the moving contact assembly 2 and the static contact assembly; thus, the first copper bar 21 and the second copper bar 22 are fixed together by bolts to form a sturdy structure that can withstand greater mechanical stress and vibration, and at the same time, the contact between the moving contact assembly 2 and the static contact assembly is made closer, further improving the conductive properties, and in addition, each bolt and each copper bar can be easily disassembled and replaced when necessary.

[0036] In one embodiment, a square hole is provided in the middle of the first copper bar 21 and the middle of the second copper bar 22, and a first square column 111 and a second square column 112 are provided on the insulating main shaft 11, and the first copper bar 21 is sleeved on the first square column 111 through the square hole, and the second copper bar 22 is sleeved on the second square column 112 through the square hole. A fifth bolt and a sixth bolt are penetrated on the first copper bar 21 and the second copper bar 22, and the fifth bolt and the sixth bolt are respectively arranged on both sides of the square hole, and a third clamping gap for clamping the insulating rotating shaft is provided between the first copper bar 21, the second copper bar 22, the fifth bolt and the sixth bolt. It should be noted that the diameters of the first square cylinder 111 and the second square cylinder 112 are smaller than the diameter of the middle section of the insulating main shaft 11, and the size of the third clamping gap is controlled by adjusting the tightness of the fifth bolt and the sixth bolt, so that the first copper bar 21 and the second copper bar 22 hold the middle section of the insulating main shaft 11 tightly to prevent the first copper bar 21 and the second copper bar 22 from moving axially along the insulating main shaft 11; thereby, the connection between the moving contact assembly 2 and the insulating main shaft 11 is more stable, the stability and reliability of the entire disconnector are improved, and at the same time, the installation and adjustment process is simplified.

[0037] In one embodiment, the middle parts of the first bolt 23, the second bolt 24, the third bolt 25 and the fourth bolt 26 are all inserted into the first copper bar 21 and the second copper bar 22, and the first spring 27, the first spring washer 28 and the second spring washer 29 are sleeved on both ends of the screw rods of the first bolt 23, the second bolt 24, the third bolt 25 and the fourth bolt 26, one end of the first spring 27 is connected to the first spring washer 28, and the other end of the first spring 27 is connected to the second spring washer 29. It should be noted that the first spring 27, the second spring washer 29 and the second spring washer 29 can provide additional pressure and tension to ensure the close contact between the bolt and the copper bar, and reduce the looseness caused by vibration or temperature change, thereby reducing the wear between the bolt and the copper bar; thereby, the clamping elasticity between the two copper bars can be guaranteed, and the current conduction capacity of the copper bar when clamping the static contact piece can be guaranteed, and at the same time, the stability of the device is improved and the service life of the device is extended.

[0038] like Figure 13-14As shown, in one embodiment, the first static contact assembly 3 and the second static contact assembly 4 both include an insulator string 31, an insulating cover 32 and a static contact 33, the upper end of the insulator string 31 is connected to the bracket 1, the lower end of the insulator string 31 is connected to the middle of the static contact 33, the external end of the static contact 33 is passed through the shell 5, the insulating cover 32 is sleeved on the external end of the static contact 33, the insulating cover 32 is connected to the shell 5, a static contact piece 331 is provided on the contact end of the static contact 33, the static contact pieces 331 are parallel to the first copper bar 21 and the second copper bar 22, the static contact piece 331 located on the first static contact assembly 3 is passed through the first clamping gap, and the static contact piece 331 located on the second static contact assembly 4 is passed through the second clamping gap. It should be noted that the insulator assembly can play the role of electrical insulation and mechanical support (such as a suspension insulator string 31, a column insulator string 31, etc.), and includes multiple insulator elements. In the present embodiment, preferably, the insulator assembly is composed of multiple insulator elements connected; the static contact 33 is a conductive component, which is used to contact with the moving contact assembly 2 and transmit current; the insulating cover 32 is sleeved on the external end of the static contact 33 to play a further electrical insulation role. At the same time, the insulating cover 32 is connected to the housing 5 to ensure the safety and reliability of the entire static contact assembly; in the present embodiment, the static contact piece 331 on the first static contact assembly 3 extends downward, and the first clamping gap is sleeved on the first static contact assembly from bottom to top. On the static contact piece 331 on the contact assembly 3, the extension direction of the static contact piece 331 on the second static contact assembly 4 is upward, and the first clamping gap is sleeved on the static contact piece 331 on the first static contact assembly 3 from top to bottom; the insulating cover 32 is used to insulate and seal the connection gap between the shell 5 and the static contact 33; thus, the static contact piece 331 is in close contact with the clamping structure of the moving contact assembly 2, ensuring good conductivity and contact reliability, reducing the resistance and heat generated by poor contact, and improving the overall performance of the disconnector. At the same time, the use of the insulator string 31 and the insulating cover 32 enhances the electrical insulation performance of the static contact assembly and ensures the safety of high-voltage current during transmission.

[0039] like Figure 15-16As shown, in one embodiment, it also includes a back-stop assembly 6, which includes a guide rod 61, a second spring 62 and a guide rod sleeve 63, one end of the guide rod 61 is rotatably connected to the bracket 1, the other end of the guide rod 61 and the second spring 62 are both inserted into one end of the guide rod sleeve 63, one end of the second spring 62 abuts against the other end of the guide rod 61, the other end of the second spring 62 abuts against the guide rod sleeve 63, and the other end of the guide rod sleeve 63 is rotatably connected to the pull rod 12. It should be noted that, in order to prevent the guide rod 61 from falling off the guide rod sleeve 63, in the present embodiment, preferably, the guide rod 61 is provided with a protrusion on the other end thereof which is arranged in the guide rod sleeve 63, and the protrusion abuts against the second spring 62, and a guide hole is provided on one end of the guide rod sleeve 63, and the opening diameter of the guide hole is smaller than the diameter of the protrusion; when the pull rod 12 rotates to drive the guide rod sleeve 63 to move toward one end of the guide rod 61, the spring is compressed to store energy, and when the pull rod 12 rotates to drive the guide rod sleeve 63 to move toward the other end of the guide rod 61, the spring is released to release energy and then cooperates with the pull rod 12 to push the guide rod sleeve 63 to move toward the other end of the guide rod 61; when the guide rod sleeve 63 moves to the other end sleeved on the guide rod 61, the spring pushes the guide rod sleeve 63 to lock with the guide rod 61 Tighten so that the pull rod 12 is locked; in order to conveniently realize the rotational connection, in the present embodiment, preferably, a U-shaped frame is provided on the pull rod 12 and the bracket 1, and the U-shaped frame on the pull rod 12 is rotationally connected to the other end of the guide rod sleeve 63, and the U-shaped frame on the bracket 1 is rotationally connected to one end of the guide rod 61; thus, through the cooperation of the guide rod 61, the second spring 62 and the guide rod sleeve 63, an additional stable support is provided for the isolating switch. When the isolating switch is subjected to external force (such as strong wind or earthquake, etc.), the backstop component 6 can absorb and disperse part of the impact force, reduce the shaking and displacement of the isolating switch and thereby improve its stability. At the same time, the backstop component 6 can provide additional resistance in extreme situations (such as when the isolating switch needs to be urgently closed due to a fault) to prevent the isolating switch from opening accidentally, thereby protecting the safety of personnel and equipment.

[0040] like Figure 1-4As shown, in one embodiment, it also includes at least one group of signboards 7 and pointers 8, wherein the signboard 7 is arranged on the outer shell 5, and a separation and combination sign is arranged on the signboard 7, and a rotatable insulating main shaft 11 is passed through the signboard 7, and the pointer 8 is arranged on the insulating main shaft 11, and the pointer 8 is arranged on the side of the signboard 7 away from the outer shell 5, and the pointer 8 is adapted to the separation and combination sign. It should be noted that the signboard 7 is arranged at a position on the housing 5 that is easy to observe; the on-off mark includes words or symbols such as "on" (indicating that the disconnector is in a closed state) and "off" (indicating that the disconnector is in an open state); the pointer 8 is used to point to the on-off mark on the signboard 7, and the rotation of the insulating main shaft 11 drives the pointer 8 to rotate; in order to improve visibility at night or in a dimly lit environment, the signboard 7 and the pointer 8 can use fluorescent materials or lighting devices such as LED lights; the signboard 7 and the pointer 8 can be made of materials with waterproof, dustproof, and corrosion-resistant properties to improve their service life and reliability; in order to meet the needs of users in different countries and regions, a multilingual signboard 7 can be designed; thus, through intuitive on-off indications, the user can quickly judge the state of the disconnector without opening the disconnector housing 5, thereby avoiding safety accidents such as misoperation or electric shock during operation, and at the same time, simplifying maintenance work.

[0041] Therefore, the 10kV outdoor insulated high-voltage disconnector of the present invention solves the technical problems in the prior art that the exposed knife switch is easily affected by external conditions, the conductive performance and the smooth operation are affected by corrosion, and the position of the moving contact cannot be fixed during operation, and achieves beneficial effects: 1) The reasonable layout of the shell 5 and the moving and static contact assemblies forms a semi-enclosed structure, which effectively isolates the influence of external dirt, moisture, pests and foreign objects on the inside of the knife switch, significantly improves the external insulation performance of the equipment, and reduces the risk of grounding or short-circuit failure. At the same time, it reduces the erosion of moisture and dirt on the contacts and connecting bolts, effectively delays the occurrence of corrosion, thereby maintaining good conductive performance and smooth operation; 2) The shell 5 adopts the structures of the upper cover 52, the side shell 53, the bottom shell 54 and the flexible insulating sheet 511. When the moving contact assembly 2 rotates, the flexible insulating lower cover 51 can automatically retract or expand outward, avoiding interference with the moving contact assembly 2, and ensuring the insulation performance of the equipment; 3) The rotation of the pull rod 12 drives the rotation of the insulating main shaft 11 and the moving contact assembly 2, thereby achieving The invention realizes the quick connection and separation of the moving contact assembly 2 and the first and second static contact assemblies 4, which is easy and quick to operate and improves work efficiency; 4) The moving contact assembly 2 adopts a double copper bar clamping design, and the use of springs and spring washers ensures stable contact with the static contact assembly, reduces contact resistance, and improves the reliability and stability of current transmission; 5) Through the stop assembly 6 (such as the guide rod 61, the second spring 62 and the guide rod sleeve 63), it is ensured that the moving contact can stably stay in the specified position after the opening and closing operation, effectively preventing the pull rod 12 from rotating by itself when not subjected to external force, ensuring the stability and safety of the equipment; 6) The design of the signboard 7 and the pointer 8 enables the operator to intuitively understand the opening and closing status of the disconnector, improving the convenience and accuracy of operation; 7) By comprehensively considering the protection of the external environment, the optimization of the internal structure, and the improvement of the convenience and safety of operation, the overall performance and life are significantly improved, and each component is easy to disassemble and replace, which reduces the maintenance cost and provides a strong guarantee for the stable operation of the power system.

[0042] The second aspect of the present invention provides an operating method for a 10kV outdoor insulated high-voltage disconnector, which is described in detail below.

[0043] A method for operating a 10kV outdoor insulated high-voltage disconnector, based on the 10kV outdoor insulated high-voltage disconnector provided in any one of the above embodiments, comprising: Install the bracket 1 on the component to be installed, and connect the incoming wire and the outgoing wire to the first stationary contact assembly 3 and the second stationary contact assembly 4 respectively; Pull the pull rod 12 forward, the pull rod 12 rotates to drive the insulating main shaft 11 to rotate and then drive the moving contact assembly 2 to rotate, so that the moving contact assembly 2 is synchronously engaged with the first stationary contact assembly 3 and the second stationary contact assembly 4; Pull the pull rod 12 in the reverse direction, the pull rod 12 rotates to drive the insulating main shaft 11 to rotate and then drive the moving contact assembly 2 to rotate, so that the moving contact assembly 2 is synchronously separated from the first stationary contact assembly 3 and the second stationary contact assembly 4; When the moving contact assembly 2 rotates forward to separate from the flexible insulating lower cover 51, the flexible insulating lower cover 51 retracts; when the moving contact assembly 2 rotates to abut against the flexible insulating lower cover 51, the flexible insulating lower cover 51 expands outward.

[0044] It should be noted that before installing the bracket 1, it is necessary to confirm the installation position and line conditions, meet the installation conditions and wear protective equipment; it is necessary to use tools such as operating levers to quickly and decisively pull the pull rod 12; when there is a gap at the lower end of the housing 5, it is necessary to observe whether the moving contacts and static contacts of the isolating switch are completely closed or in the correct open state.

[0045] Therefore, the operating method of the 10kV outdoor insulated high-voltage disconnector of the present invention solves the technical problems in the prior art that the exposed knife switch is easily affected by external conditions, the conductive performance and operation fluency are affected by rust, and the position of the moving contact cannot be fixed during operation, and achieves beneficial effects: 1) the moving contact assembly 2 and the static contact assembly can be engaged or separated directly by pulling the pull rod 12, and the operation process is simple and clear, without the need for complicated tools and steps, thereby improving work efficiency; 2) when the moving contact assembly 2 rotates, the flexible insulating lower cover 51 can retract or expand accordingly, effectively shielding and protecting the moving contact assembly 2 from external conditions such as dirt, moisture, pests and foreign objects, reducing the risk of grounding or short-circuit faults, and improving the operating reliability and safety of the disconnector; 3) through the pulling direction and The rotation state of the moving contact assembly 2 can intuitively determine the closing or opening state of the disconnector, which is convenient for the operator to monitor and manage; 4) Through the linkage design of the pull rod 12, the insulating main shaft 11 and the moving contact assembly 2, the moving contact assembly 2 is precisely controlled during the engagement and separation process, ensuring that the moving contact assembly 2 can be completely engaged and separated with the static contact assembly during operation, reducing local overheating and rust caused by poor contact. At the same time, it also reduces friction and wear during operation, extends the service life of the contacts, and reduces the impact of rust on conductive performance and operational smoothness; 5) The operation method is simple and the equipment design is reasonable, which can reduce the maintenance cost caused by improper operation or equipment failure. At the same time, it makes the various components of the equipment easy to disassemble and replace, further reducing the difficulty and cost of maintenance.

[0046] like Figure 1-16 As shown, an optional working process of the 10kV outdoor insulated high-voltage disconnector and its operating method in the present invention is as follows: Confirm the installation location and line conditions, meet the installation conditions and wear protective equipment; In the initial state, the pointer 8 points to the "off" mark, the first bracket 13 and the second bracket 14 are installed on the component where the isolating switch is to be installed, and the incoming and outgoing lines are connected to the first static contact 33 and the second static contact 33 respectively; When the circuit breaker needs to be closed, the operating rod is connected to the pull rod 12, and the pull rod 12 is pulled forward. The pull rod 12 rotates to drive the insulating main shaft 11 to rotate, and then drives the first copper bar 21, the second copper bar 22 and the pointer 8 to rotate. The pointer 8 points to the "closed" mark. The first clamping gap is sleeved on the static contact piece 331 of the first static contact 33, and the second clamping gap is sleeved on the static contact piece 331 of the second static contact 33. Through the gap, it is confirmed that the first copper bar 21 and the second copper bar 22 are synchronously engaged with the static contact piece 331 of the first static contact 33 and the static contact piece 331 of the second static contact 33, and the circuit is energized. When the switch needs to be opened, the operating rod is connected to the pull rod 12, and the pull rod 12 is pulled in the opposite direction. The rotation of the pull rod 12 drives the insulating main shaft 11 to rotate, and then drives the first copper bar 21, the second copper bar 22 and the pointer 8 to rotate. The pointer 8 points to the "open" mark, and the first clamping gap is separated from the static contact piece 331 of the first static contact 33, and the second clamping gap is separated from the static contact piece 331 of the second static contact 33. Through the gap, it is confirmed that the first copper bar 21 and the second copper bar 22 are synchronously separated from the static contact piece 331 of the first static contact 33 and the static contact piece 331 of the second static contact 33, and the line is de-energized; Among them, when one end of the first copper bar 21 and the second copper bar 22 abut against the flexible insulating sheet 511, the stacking area between the flexible insulating sheets 511 is reduced, and the flexible insulating lower cover 51 expands outward; when one end of the first copper bar 21 and the second copper bar 22 are separated from the flexible insulating sheet 511, the stacking area between the flexible insulating sheets 511 is increased, and the flexible insulating lower cover 51 retracts; when the pull rod 12 rotates to drive the guide rod sleeve 63 to move toward one end of the guide rod 61, the spring is compressed to store energy, and when the pull rod 12 rotates to drive the guide rod sleeve 63 to move toward the other end of the guide rod 61, the spring is released to release energy and then cooperates with the pull rod 12 to push the guide rod sleeve 63 to move toward the other end of the guide rod 61. When one end of the guide rod sleeve 63 moves to the point where it is sleeved on the protrusion, the spring pushes the guide rod sleeve 63 to lock with the guide rod 61, so that the pull rod 12 is locked.

[0047] In addition, the terms "first", "another" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "plurality" or "several" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "one example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0050] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

[0051] 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 10kV outdoor insulated high-voltage disconnector, characterized in that: include: At least one phase contact unit, each phase contact unit comprises a bracket (1), a moving contact assembly (2), a first stationary contact assembly (3), a second stationary contact assembly (4) and a shell (5), the lower end of the bracket (1) is inserted into the shell (5), a rotatable insulating main shaft (11) is inserted into the lower end of the bracket (1), a pull rod (12) is provided on the insulating main shaft (11), the moving contact assembly (2) is sleeved on the insulating main shaft (11), the first stationary contact assembly (3) and the second stationary contact assembly (4) are both inserted into the shell (5), the first stationary contact assembly (3) and the second stationary contact assembly (4) are respectively provided on both sides of the insulating main shaft (11), the first stationary contact assembly (3) and the second stationary contact assembly (4) are both connected to the bracket (1), and a flexible insulating lower cover (51) is provided at the lower end of the shell (5); The pull rod (12) is capable of rotating to drive the insulating main shaft (11) to rotate and further drive the moving contact assembly (2) to rotate, so that the moving contact assembly (2) can synchronously engage or disengage with the first stationary contact assembly (3) and the second stationary contact assembly (4); when the moving contact assembly (2) rotates to separate from or abut against the flexible insulating lower cover (51), the flexible insulating lower cover (51) can retract or expand outward.

2. The 10kV outdoor insulated high-voltage disconnector according to claim 1, characterized in that: The housing (5) comprises an upper cover (52), a side shell (53), a bottom shell (54) and at least two flexible insulating sheets (511); the upper cover (52) is arranged on the middle part of the bracket (1); the lower end of the upper cover (52) is connected to the upper end of the side shell (53); the side shell (53) is wound around the lower end of the bracket (1); the external connection end of the first static contact assembly (3) and the external connection end of the second static contact assembly (4) are passed through the side shell (53); the flexible insulating sheets (511) are arranged at the lower end of the side shell (53); the flexible insulating sheets (511) are stacked to form the flexible insulating lower cover (51); the bottom shell (54) and the flexible insulating lower cover (51) are symmetrically covered at the lower end of the side shell (53); and a gap is provided between the bottom shell (54) and the flexible insulating lower cover (51).

3. The 10kV outdoor insulated high-voltage disconnector according to claim 1, characterized in that: The bracket (1) comprises a first lifting frame (13), a second lifting frame (14) and a connecting frame (15); the first lifting frame (13) and the second lifting frame (14) are symmetrically arranged on opposite side walls of the connecting frame (15); the first lifting frame (13) and the second lifting frame (14) are passed through the outer shell (5); the connecting frame (15) is arranged in the outer shell (5); the lower end of the connecting frame (15) is provided with the rotatable insulating main shaft (11); the connecting frame (15) is connected to both the first static contact assembly (3) and the second static contact assembly (4).

4. The 10kV outdoor insulated high-voltage disconnector according to claim 1, characterized in that: The moving contact assembly (2) comprises a first copper bar (21), a second copper bar (22), a first bolt (23), a second bolt (24), a third bolt (25) and a fourth bolt (26); the first copper bar (21) and the second copper bar (22) are arranged on the insulating main shaft (11) in parallel and at intervals; the first bolt (23) and the second bolt (24) are arranged at intervals through one end of the first copper bar (21) and the second copper bar (22) to form a first clamping gap; the first stationary contact assembly (3) is arranged in the first clamping gap; the third bolt (25) and the fourth bolt (26) are arranged at intervals through the other end of the first copper bar (21) and the second copper bar (22) to form a second clamping gap; the second stationary contact assembly (4) is arranged in the second clamping gap.

5. The 10kV outdoor insulated high-voltage disconnector according to claim 4, characterized in that: A square hole is provided in the middle of the first copper bar (21) and the middle of the second copper bar (22); a first square column (111) and a second square column (112) are provided on the insulating main shaft (11); the first copper bar (21) is sleeved on the first square column (111) through the square hole; the second copper bar (22) is sleeved on the second square column (112) through the square hole; a fifth bolt and a sixth bolt are passed through the first copper bar (21) and the second copper bar (22); the fifth bolt and the sixth bolt are respectively provided on two sides of the square hole; a third clamping gap for clamping the insulating rotating shaft is provided between the first copper bar (21), the second copper bar (22), the fifth bolt and the sixth bolt.

6. The 10kV outdoor insulated high-voltage disconnector according to claim 4, characterized in that: The middle parts of the first bolt (23), the second bolt (24), the third bolt (25) and the fourth bolt (26) are all inserted into the first copper bar (21) and the second copper bar (22); the first spring (27), the first spring washer (28) and the second spring washer (29) are sleeved on both ends of the screw rods of the first bolt (23), the second bolt (24), the third bolt (25) and the fourth bolt (26); one end of the first spring (27) is connected to the first spring washer (28), and the other end of the first spring (27) is connected to the second spring washer (29).

7. The 10kV outdoor insulated high-voltage disconnector according to claim 4, characterized in that: The first stationary contact assembly (3) and the second stationary contact assembly (4) both comprise an insulator string (31), an insulating cover (32) and a stationary contact (33); the upper end of the insulator string (31) is connected to the bracket (1); the lower end of the insulator string (31) is connected to the middle of the stationary contact (33); the external end of the stationary contact (33) is passed through the housing (5); the insulating cover (32) is sleeved on the external end of the stationary contact (33); The insulating cover (32) is connected to the housing (5); a static contact piece (331) is provided on the contact end of the static contact (33); the static contact piece (331) is parallel to the first copper bar (21) and the second copper bar (22); the static contact piece (331) located on the first static contact assembly (3) is inserted into the first clamping gap; and the static contact piece (331) located on the second static contact assembly (4) is inserted into the second clamping gap.

8. The 10kV outdoor insulated high-voltage disconnector according to claim 1, characterized in that: It also includes a back-stop assembly (6), which includes a guide rod (61), a second spring (62) and a guide rod sleeve (63), one end of the guide rod (61) is rotatably connected to the bracket (1), the other end of the guide rod (61) and the second spring (62) are both inserted into one end of the guide rod sleeve (63), one end of the second spring (62) abuts against the other end of the guide rod (61), the other end of the second spring (62) abuts against the guide rod sleeve (63), and the other end of the guide rod sleeve (63) is rotatably connected to the pull rod (12).

9. The 10kV outdoor insulated high-voltage disconnector according to claim 1, characterized in that: The invention also comprises at least one set of a signboard (7) and a pointer (8), wherein the signboard (7) is arranged on the housing (5), a separation mark is arranged on the signboard (7), a rotatable insulating main shaft (11) is passed through the signboard (7), the pointer (8) is arranged on the insulating main shaft (11), the pointer (8) is arranged on a side of the signboard (7) away from the housing (5), and the pointer (8) is adapted to the separation mark.

10. A method for operating a 10kV outdoor insulated high-voltage disconnector, characterized in that: The 10kV outdoor insulated high-voltage disconnector according to any one of claims 1 to 9 comprises: The bracket (1) is installed on the component to be installed, and the incoming wire and the outgoing wire are connected to the first stationary contact assembly (3) and the second stationary contact assembly (4) respectively; The pull rod (12) is pulled forward, and the pull rod (12) rotates to drive the insulating main shaft (11) to rotate, and then drives the movable contact assembly (2) to rotate, so that the movable contact assembly (2) is synchronously engaged with the first stationary contact assembly (3) and the second stationary contact assembly (4); Pulling the pull rod (12) in the opposite direction, the pull rod (12) rotates to drive the insulating main shaft (11) to rotate and then drives the moving contact assembly (2) to rotate, so that the moving contact assembly (2) is synchronously separated from the first stationary contact assembly (3) and the second stationary contact assembly (4); When the moving contact assembly (2) rotates forward to separate from the flexible insulating lower cover (51), the flexible insulating lower cover (51) retracts; when the moving contact assembly (2) rotates to abut against the flexible insulating lower cover (51), the flexible insulating lower cover (51) expands outward.

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